WO2018214940A1 - 信道侦听方法、网络侧设备及终端 - Google Patents

信道侦听方法、网络侧设备及终端 Download PDF

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Publication number
WO2018214940A1
WO2018214940A1 PCT/CN2018/088237 CN2018088237W WO2018214940A1 WO 2018214940 A1 WO2018214940 A1 WO 2018214940A1 CN 2018088237 W CN2018088237 W CN 2018088237W WO 2018214940 A1 WO2018214940 A1 WO 2018214940A1
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WIPO (PCT)
Prior art keywords
resource
terminal
interception
listening
channel
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Legal status (The legal status 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 status listed.)
Ceased
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PCT/CN2018/088237
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English (en)
French (fr)
Inventor
李彦淳
马梦瑶
颜敏
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to EP18806095.8A priority Critical patent/EP3637935B1/en
Publication of WO2018214940A1 publication Critical patent/WO2018214940A1/zh
Priority to US16/692,609 priority patent/US11109411B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—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 application relates to the field of wireless communications technologies, and in particular, to a channel listening method, a network side device, and a terminal.
  • the channel sense which is also referred to as carrier sense, refers to the process of listening to the frequency domain resources corresponding to the data transmission before the terminal initiates data transmission to the network side device.
  • the network side device schedules a transmission resource for data transmission for the terminal, and when the terminal listens, listens to the channel in the frequency domain corresponding to the transmission resource before the time domain corresponding to the transmission resource scheduled by the network side device.
  • the interference situation when there is channel interference in the corresponding frequency domain, the data transmission is abandoned.
  • the terminal when there is no channel interference in the corresponding frequency domain (ie, the channel is idle), the terminal is on the transmission resource. Data transfer.
  • the monitored resources may be allocated by the network side device to other terminals in the same cell for data transmission, and the channel interception of the terminal may be transmitted by other terminals in the same cell. Interference, resulting in lower accuracy of the listening results.
  • the embodiment of the present application provides a channel listening method, a network side device, and a terminal.
  • a channel listening method comprising:
  • the network side device determines a first listening resource for the terminal channel to listen to, the first listening resource is a resource other than the resource for each terminal data transmission in the cell where the terminal is located; the network side The device sends the first interception indication information to the terminal, where the first interception indication information is used to indicate the first interception resource.
  • the network side device determines the listening resource used by the terminal for performing channel sounding, and the determined listening resource is other than the resource used by each terminal in the cell where the terminal is located for data transmission.
  • Other resources that is, after the network side device allocates a certain resource to the terminal for interception, the same resource is not allocated to other terminals in the same cell for data transmission, so that the terminal can ensure that the terminal is detecting on the listening resource.
  • the interfering signal must be the interference signal from the neighboring cell, not the interference signal generated by the other terminals in the cell, so as to prevent the channel interception of the terminal from being interfered by the data transmission of other terminals in the same cell, and improve The accuracy of the listening results.
  • the first interception indication information includes one or more time slots occupied by the first interception resource; or the first interception indication information includes the first frame. Listen to the start time and duration of the resource.
  • the first interception indication information is further used to indicate a first transmission resource for the terminal data transmission, where a time domain interval of the first transmission resource is in the first interception After the time domain interval of the resource, the frequency domain resource occupied by the first transmission resource is all or part of the frequency domain resource occupied by the first interception resource.
  • the first interception indication information is further used to acquire a channel listening result of the terminal, and the method further includes: the network side device receiving a channel listening result sent by the terminal, where The channel listening result is a channel listening result corresponding to the terminal on the first listening resource.
  • the channel listening result includes at least one of a channel busy report and a channel idle report;
  • the channel busy report includes at least one of a detected signal strength, a signal power, a duration, a beam/sector number of the intercepted signal, and an antenna number of the intercepted signal;
  • the channel idle report includes at least one of an idle beam/sector number and an idle antenna number.
  • the method further includes: after receiving the channel listening result, determining, by the network side device, a second transmission resource used for data transmission of the terminal; The terminal sends transmission indication information, where the transmission indication information is used to indicate the second transmission resource.
  • the network side device may receive the channel listening result fed back by the terminal, and allocate the transmission resource to the terminal according to the channel listening result, so as to avoid the data transmission process of the terminal from being received by the data in the neighboring cell.
  • the method further includes: after receiving the channel listening result, determining, by the network side device, a second interception resource for the terminal channel interception and for the a second transmission resource of the terminal data transmission, the time domain interval of the second transmission resource is after the time domain interval of the second interception resource, and the frequency domain resource occupied by the second transmission resource is the
  • the second interception indication information is used to indicate the second interception resource, where the network side device sends the second interception indication information to the terminal. And the second transmission resource.
  • the network side device receives the channel listening result fed back by the terminal, allocates resources for further monitoring and data transmission, and improves the resource allocation effect.
  • the method further includes: acquiring, by the network side device, the interception capability information of the terminal, the interception capability information, before determining the first interception resource for the terminal channel to listen to Include at least one of a frequency domain resource that can be listened to and a time required for a single listening; the network side device determines a first listening resource for terminal channel interception, including: the network side device according to the The listening capability information of the terminal determines the first listening resource.
  • the terminal provides its own listening capability information to the network side device, and the network side device allocates the listening resource to the terminal according to the listening capability information of the terminal, thereby improving the allocation effect of the listening resource.
  • the first listening resource includes a time domain resource and a frequency domain resource; or the first listening resource includes a time domain resource, a frequency domain resource, and a listening direction.
  • the second aspect provides a channel listening method, where the method includes: receiving, by the terminal, first interception indication information sent by the network side device, where the first interception indication information is used to indicate the first interception resource,
  • the first listening resource is a resource other than the resource for the data transmission of each terminal in the cell where the terminal is located; the terminal acquires a channel listening result corresponding to the first listening resource.
  • the first interception indication information is further used to indicate a first transmission resource for the terminal data transmission, where a time domain interval of the first transmission resource is in the first interception After the time domain interval of the resource, and the frequency domain resource occupied by the first transmission resource is all or part of the frequency domain resource occupied by the first listening resource, the method further includes: the terminal according to the The channel listening result determines an idle frequency domain resource corresponding to the first transmission resource; and the terminal performs data transmission on the idle frequency domain resource in a time domain interval corresponding to the first transmission resource.
  • the first interception indication information is further used to acquire the channel listening result; the method further includes: determining, by the terminal, the first interception according to the channel interception result An idle frequency domain resource corresponding to the resource; the terminal, after the time domain interval corresponding to the first interception resource, transmitting, to the network side device, the idle frequency domain resource corresponding to the first listening resource Channel listening result.
  • the method further includes: the terminal receiving the transmission indication information sent by the network side device, where the transmission indication information is used to indicate that the network side device receives the channel interception a second transmission resource determined as a result; the terminal performs data transmission on the second transmission resource.
  • the method further includes: the terminal receiving the second interception indication information sent by the network side device, where the second interception indication information is used to indicate that the network side device is receiving a second listening resource and a second transmission resource determined after the channel listening result, a time domain interval of the second transmission resource is after a time domain interval of the second listening resource, and the second The frequency domain resource occupied by the transmission resource is all or part of the frequency domain resource occupied by the second interception resource; the terminal determines, according to the interception result of performing channel interception on the second interception resource, The idle frequency domain resource corresponding to the second listening resource; the terminal performs data transmission on the idle frequency domain resource in a time domain interval corresponding to the second transmission resource.
  • the method before the terminal receives the first interception indication information sent by the network side device, the method further includes: the terminal sending the interception capability information of the terminal to the network side device,
  • the interception capability information includes at least one of a channel interval that can be intercepted and a required duration of a single listening.
  • the channel listening result is a listening result obtained by the terminal performing channel sounding on the first listening resource; or the channel listening result is that the terminal is The listening result obtained by channel sensing is performed on the frequency domain resource occupied by the first listening resource before the time domain interval corresponding to the first listening resource.
  • the terminal performs channel sensing in advance before receiving the first listening resource, and after receiving the first listening resource, the first listening resource can be obtained. Corresponding listening results, thus improving the timeliness of the acquisition of the listening results.
  • a network side device comprising: a processor and a communication interface, the communication interface is configured to be controlled by the processor; the processor is configured to implement the first aspect and the first The channel listening method provided by the possible design of the aspect.
  • a terminal comprising: a processor and a communication interface, the communication interface being configured to be controlled by the processor; the processor in the terminal is configured to implement the foregoing second aspect and the second aspect The channel listening method provided by the design.
  • the present application provides a network side device having a function of implementing the channel listening method of the first aspect described above.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more than one unit corresponding to the functions described above.
  • the present application provides a terminal having a function of implementing the channel listening method of the second aspect described above.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more than one unit corresponding to the functions described above.
  • a seventh aspect a computer readable storage medium storing an executable program, which may be provided by a possible design for implementing the first aspect and the first aspect described above
  • the channel listening method, or the executable program may be a channel sensing method provided by the possible design schemes for implementing the second aspect and the second aspect described above.
  • FIG. 1 is a block diagram of a wireless communication system according to an embodiment of the present application.
  • FIG. 2 is a flowchart of a channel listening method provided by an exemplary embodiment of the present application.
  • FIG. 3 is a schematic diagram of multi-level listening involved in the embodiment shown in FIG. 2;
  • FIG. 4 is a schematic diagram of interception and transmission involved in the embodiment shown in FIG. 2;
  • FIG. 5 is a flowchart of a channel listening method provided by an exemplary embodiment of the present application.
  • FIG. 6 is a schematic diagram of interception and transmission according to the embodiment shown in FIG. 5;
  • FIG. 7 is a flowchart of a channel listening method provided by an exemplary embodiment of the present application.
  • FIG. 8 is a schematic diagram of interception and transmission according to the embodiment shown in FIG. 7; FIG.
  • FIG. 9 is a schematic structural diagram of a network device according to an exemplary embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a network device according to an exemplary embodiment of the present disclosure.
  • FIG. 11 is a structural block diagram of a network side device according to an embodiment of the present application.
  • FIG. 12 is a structural block diagram of a terminal according to an embodiment of the present application.
  • FIG. 1 is a structural diagram of a wireless communication system according to an embodiment of the present application.
  • the wireless communication system may be a wireless local area networks (WLAN) system; or the wireless communication system may be a 4th generation mobile communication (4G) system, also known as long term evolution (Long Term) Evolution, LTE) system; or, the wireless communication system may also be a 5G system, also known as a new radio (NR) system.
  • the wireless communication system includes: a network side device 110 and a terminal 120.
  • the network side device 110 may be an access point (AP) or a transmission reception point (TRP) in the wireless local area network.
  • the network side device 110 may be an evolved base station (eNB) employed in the 4G system.
  • the network side device 110 may also be a base station (gNB) that adopts a centralized distributed architecture in a 5G system.
  • the network side device 110 adopts a centralized distributed architecture it generally includes a central unit (CU) and at least two distributed units (DUs).
  • a centralized data unit is provided with a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, and a Media Access Control (MAC) layer protocol stack;
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Media Access Control
  • a physical (physical, PHY) layer protocol stack is provided in the unit.
  • the specific implementation manner of the network side device 110 is not limited in this embodiment.
  • the network side device 110 and the terminal 120 establish a wireless connection through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, such as
  • the wireless air interface is a new air interface; or the wireless air interface may also be a wireless air interface based on a 5G-based next-generation mobile communication network technology standard.
  • Terminal 120 may be a device that provides voice and/or data connectivity to a user.
  • the terminal 120 can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
  • RAN Radio Access Network
  • RAN Radio Access Network
  • a station STA
  • Subscriber unit a subscriber station, a mobile station, a mobile station, a remote station, an access point, and a remote terminal
  • Remote terminal an access terminal, a user terminal, a user agent, a user device, or a user equipment (UE).
  • UE user equipment
  • a plurality of network side devices 110 and/or a plurality of terminals 120 may be included, and one network side device 110 and one terminal 120 are illustrated in FIG. However, this embodiment does not limit this.
  • the network side device 110 determines, for the terminal 120, the interception resource for channel interception, and the network side device 110 determines the listening resource determined by the terminal 120, and the network side device 110 allocates the same to the terminal. 120.
  • the other terminals in the same cell are not used to receive or send other resources in the same cell. Data, if the terminal 120 detects the interference signal, it can be determined that the interference signal is not an interference signal generated when other terminals in the cell perform data transmission, thereby preventing the channel interception of the terminal from being transmitted by other terminals in the same cell. Interference to improve the accuracy of the listening results.
  • FIG. 2 shows a flowchart of a channel listening method provided by an exemplary embodiment of the present application. This method can be used in the wireless communication system shown in FIG. As shown in FIG. 2, the channel listening method may include:
  • Step 201 The network side device determines a first interception resource for terminal channel interception, where the first interception resource is a resource other than the resource for each terminal data transmission in the cell where the terminal is located.
  • the terminal when the terminal needs to perform channel listening, the terminal may send a channel sensing request (CS requirement) to the network side device, and after receiving the channel listening request, the network side device may determine the first for the terminal. Listening to resources.
  • CS requirement channel sensing request
  • the first listening resource of the terminal may be determined from other resources than the resources allocated for data transmission by each terminal in the cell where the terminal is located, and The network side device does not subsequently reassign the first listening resource to each terminal in the cell where the terminal is located for data transmission.
  • the first listening resource includes a time domain resource and a frequency domain resource.
  • the network side device may determine, for the terminal, a time domain resource (ie, a time period for listening) and a frequency domain resource for the channel listening (the frequency domain resource may be a frequency band, a channel, or a sub Channel, etc.), the subsequent terminal performs channel sounding on the specified time domain interval and frequency domain resources when performing channel sounding.
  • a time domain resource ie, a time period for listening
  • a frequency domain resource for the channel listening may be a frequency band, a channel, or a sub Channel, etc.
  • the foregoing first listening resource includes a time domain resource, a frequency domain resource, and a listening direction.
  • Beamforming is one of the key technologies introduced by 5G systems. Beamforming refers to the formation of specific spatial directivity by superimposing signals transmitted by multiple antennas by assigning specific weights to a plurality of transmitting antennas.
  • the transmitting device can transmit beam signals to multiple receiving devices through different beams, thereby achieving repeated use of the same time-frequency resources in different spaces (ie, space division multiplexing), which greatly improves System capacity.
  • the network side device if the network side device communicates with the terminal through the beamforming technology, when the terminal performs channel sounding, in addition to the need to listen on the available frequency domain resources, the terminal needs to be fixed.
  • the first listening resource determined by the network side device includes interception in addition to the time domain resource and the frequency domain resource. direction.
  • the terminal may send the interception capability information of the terminal to the network side device, where the interception capability information includes at least one of a frequency domain resource that can be intercepted and a required duration of a single listening.
  • the network side device may obtain the listening capability information of the terminal when determining the first listening resource, and determine the first listening resource according to the listening capability information of the terminal.
  • the listening capability of the channel is also different. For example, one terminal supports a wider frequency band, and the other terminal only supports a narrow frequency band, or one terminal supports one frequency band, and the other terminal supports one frequency band.
  • the terminal supports another frequency band; for example, a terminal with stronger processing capability can complete channel interception in 4 time slots, and another terminal with weak processing capability needs 7 channels for complete channel interception. Time slot or more.
  • the frequency band of the listening resource allocated by the network device for the terminal includes too many frequency bands that the terminal cannot listen to, or the length of the listening resource allocated by the network side device for the terminal is too long, the allocated resources are wasted; If the frequency band of the listening resource determined by the network side device is not included or contains a frequency band that the terminal can listen to, or the time period corresponding to the listening resource determined by the network side device is too short, it is insufficient to support the terminal. Channel listening will affect the listening effect of the terminal. Therefore, in order to improve the allocation effect of the listening resource and the resource utilization, in the embodiment of the present application, when the network side device determines the first listening resource for the terminal, the terminal can acquire the listening capability information of the terminal, that is, the terminal can listen.
  • the frequency band and/or the length of time required for a single listening, and determining the first listening resource for the terminal according to the listening capability information of the terminal is that the terminal can listen.
  • the frequency band and the allocated listening resources are long enough for the terminal to complete channel interception without exceeding too much.
  • the terminal may carry its own listening capability information in the channel listening request, or the terminal may also send its own listening capability information to the network side device when accessing the network side device.
  • the first listening resource is not allocated to the terminal in the same cell for data transmission. Therefore, it is required to ensure that resources in the same frequency band after the first listening resource can be preempted by other cells. Therefore, the first interception
  • the length of the time domain interval of the resource may be less than the shortest interval of channel competition.
  • Step 202 The network side device sends the first interception indication information to the terminal, and the terminal receives the first interception indication information, where the first interception indication information is used to indicate the first interception resource.
  • the network side device may generate first interception indication information according to the determined first interception resource.
  • the first interception indication information includes one or more time slots occupied by the first listening resource; or the first interception indication information includes a start of the first frame listening resource. Time and duration.
  • the information indicating the time domain interval of the first interception resource in the first interception indication information may be an offset of the time domain and a length of the time domain. For example, suppose that the terminal needs to spend one unit time slice length for one interception, and the terminal needs to perform one or more interception on the first interception resource (for example, when it is necessary to listen in multiple directions, then If the interception is performed multiple times, the first interception indication information may include an offset N of the start time slice of the first interception resource and a number M of the unit time slice (ie, the start corresponding to the first interception resource)
  • the time slice is the Nth unit time slice after the unit time slice in which the first interception indication information is located, and the first interception resource lasts for M unit time slices).
  • the length of the unit time slice may be a fixed fixed time length. For example, the length of one unit time slice may be a fixed number of orthogonal frequency division multiplexing (OFDM) symbol lengths or time slots. Wait.
  • OFDM orthogonal frequency division
  • the time domain interval of the first listening resource may be directly indicated by the slot offset and the number of slots (or the OFDM symbol offset and the number of OFDM symbols), for example, the first The interception indication information may include the symbol offset n of the first interception resource and the number of symbols m (ie, the start symbol corresponding to the first interception resource is after the OFDM symbol where the first interception indication information is located) The nth OFDM symbol, and the first listening resource lasts m OFDM symbols).
  • the time domain resource used by the first interception indication information to indicate that the first interception resource is occupied may be a frequency band (frequency domain range), a channel number, or a channel sub-number.
  • the information used to indicate the listening direction in the first listening indication information is a sector in which the network side device scheduling terminal performs uplink transmission.
  • the beam direction information may specifically be a transmit beam direction of the signal sent by the terminal, or a receive beam direction when the network side device receives the information sent by the terminal.
  • the beam direction may be omnidirectional, ie encompassing all possible directions; alternatively, the beam direction may also be oriented, ie only partially possible directions.
  • Step 203 The terminal acquires a channel listening result corresponding to the first listening resource.
  • the channel listening result comprises: at least one of a channel busy report and a channel idle report; the channel busy report includes the detected signal strength, signal power, duration, and sounding signal. At least one of a beam/sector number and an antenna number of the intercepted signal; the channel idle report includes at least one of an idle beam/sector number and an idle antenna number.
  • the interception result obtained by the terminal may be the interception result obtained by the terminal performing channel interception on the first interception resource.
  • the terminal after receiving the first interception indication information, the terminal performs channel sensing on the first interception resource indicated by the first interception indication information.
  • the terminal monitors the signal strength on the frequency domain resource corresponding to the first listening resource in the time domain interval corresponding to the first listening resource.
  • a preset condition for example, the signal strength is greater than a preset intensity threshold
  • the frequency domain resource is being communicated.
  • the signal strength on the frequency domain resource does not meet the preset condition (for example, the signal strength is not greater than the preset intensity threshold)
  • the signal that is, the frequency domain resource is an idle frequency domain resource.
  • the terminal may select an appropriate listening mode according to the listening purpose, that is, the specific transmission type of the data transmission that needs to be performed subsequently.
  • the interception direction is usually one or more narrow beam directions.
  • the terminal may perform channel sounding in one or more narrow beam directions indicated by the interception direction. .
  • the listening direction is usually a relatively wide direction (such as a sector).
  • the terminal can determine the corresponding corresponding listening resource by using multiple levels of interception.
  • the idle direction or interference direction of the frequency domain resource For example, please refer to FIG. 3, which illustrates a multi-level interception diagram according to an embodiment of the present application.
  • the terminal intercepts and determines the interference direction as an example.
  • the first interception indication information indicates the detection.
  • the listening direction is a sector 31. When the terminal listens at the first level, the sector 31 is divided into a plurality of (the two shown in FIG. 3b, namely, the listening direction 32 and the listening direction 33).
  • the terminal By performing channel sensing in the listening direction 32 and the listening direction 33, respectively, it is determined which direction is the interference direction. For example, in FIG. 3b, the terminal determines the listening direction 33 as the interference direction by listening, and the listening direction. 32 is the idle direction; after that, the terminal performs secondary listening on the listening direction 33, that is, the listening direction 33 is divided into multiples (FIG. 3c shows two directions, namely, the listening direction 34 and the listening direction 35).
  • Direction by performing channel sensing in the listening direction 34 and the listening direction 35, respectively, to determine which direction is the interference direction. For example, in FIG. 3c, the terminal determines the listening direction 35 as the interference direction by intercepting, and detecting Listening direction 34 is the idle direction; finally, the terminal enters the listening direction 35 again.
  • FIG. 3d shows the listening direction for the two listening directions 36 and the listening direction 37
  • Channel listening is performed to determine which direction is the interference direction.
  • the terminal determines that the listening direction 36 is the interference direction by listening, and the listening direction 37 is the idle direction.
  • the channel listening result is that the terminal obtains the channel sensing of the frequency domain resource occupied by the first listening resource before the time domain interval corresponding to the first listening resource. result.
  • the terminal may select to perform channel detection on some or all available resources before receiving the first interception indication information. Listening and buffering the interception result, when the terminal receives the first interception indication information, it may determine that the first interception indication information is received before receiving the first interception indication information (for example, receiving the first interception indication information) Whether all of the first listening resources have been intercepted in the previous unit time slices, time slots or OFDM symbols, and if so, the acquired listening resources in the first listening resource are acquired. As a result of the listening of the resource, if the first listening resource further includes a resource that has not been intercepted within the predetermined length of time, the terminal performs channel sensing on the undetected resource.
  • Step 204 The terminal performs data transmission according to the channel listening result.
  • the data transmission performed by the terminal may be to send the uplink data to the network side device; or, when the solution shown in the embodiment of the present application is used in the 5G system, the data transmission is sent to the network side device.
  • uplink beam training can also be performed.
  • the terminal may determine the idle frequency domain resource according to the channel listening result, or determine the idle direction and the idle frequency domain resource; after that, the terminal determines the idle frequency domain resource. Or, data transmission is performed on the determined idle direction and idle frequency domain resources.
  • the first interception indication information indicates, in addition to the first interception resource, a first transmission resource for the terminal data transmission, where the time domain interval of the first transmission resource is After the time domain interval of the first listening resource, and the frequency domain resource occupied by the first transmission resource is all or part of the frequency domain resource occupied by the first listening resource; the terminal determines according to the channel listening result The idle frequency domain resource corresponding to the first transmission resource, and performing data transmission on the idle frequency domain resource in a time domain interval corresponding to the first transmission resource.
  • the terminal when data transmission is performed on the first transmission resource, the terminal is in the time domain interval corresponding to the first transmission resource.
  • the data transmission is performed on the idle frequency domain resource in the idle direction corresponding to the interception result.
  • the data transmission may be sending uplink data, such as sending an uplink physical layer protocol data unit (PPDU).
  • PPDU physical layer protocol data unit
  • the above data transmission may also be performed for uplink beam training.
  • the terminal when the terminal trains in the uplink beam, the terminal may perform beam training in multiple directions.
  • the terminal when the data transmission is the uplink beam training, the terminal may perform beam sensing on each listening direction first, and select uplink beam training in the idle direction according to the interception result.
  • the terminal may perform the interception and the uplink beam training for each of the listening directions in sequence; for example, after the terminal listens in a listening direction, it determines whether the beam training is performed in the listening direction according to the interception result; Specifically, when the listening direction is the idle direction, the terminal performs uplink beam training in the listening direction, and after the uplink beam training in the listening direction is completed, performing channel sensing in the next listening direction; Or, when the listening direction is the interference direction, the terminal abandons the uplink beam training in the listening direction, and goes to the next listening direction for channel sensing.
  • FIG. 4 is a schematic diagram of interception and transmission according to an embodiment of the present application.
  • the terminal accesses the network side device
  • the terminal sends the frequency domain resource that the terminal can listen to and the length of time required for the single listening, and the subsequent terminal needs to perform data transmission to the network side.
  • the device sends a channel listening request, and after receiving the channel listening request, the network side device acquires a frequency domain resource that the terminal can listen to and a duration required for a single listening, according to the frequency domain resource that the terminal can listen to.
  • the duration required for a single listening is determined by the terminal for the listening resource 1 and the transmission resource 1, wherein the listening resource 1 and the transmission resource 1 correspond to the same frequency domain resource, and the listening resource 1 is before the transmission resource 1, and
  • the listening resource 1 is not a resource allocated by the network side device to each terminal in the cell where the terminal is located for data transmission.
  • the network side device notifies the terminal that the interception resource 1 is in the transmission resource 1 by using uplink allocation resource allocation information (UL allocation), and after receiving the uplink transmission resource allocation information, the terminal performs channel sensing on the interception resource. After determining the idle frequency domain resource on the frequency domain resource corresponding to the interception resource according to the interception result, the terminal performs data transmission on the idle frequency domain resource in the time domain interval corresponding to the transmission resource 1.
  • UL allocation resource allocation information uplink allocation resource allocation information
  • the network side device determines, for the terminal, the listening resource for performing channel sensing, and the network side device is the listening resource determined by the terminal, which is the network side device.
  • the terminal is allocated to the other terminal in the same cell as the resource for data transmission, that is, when the terminal listens on the listening resource, other terminals in the same cell are not on the listening resource.
  • Receiving or transmitting data if the terminal detects the interference signal, it may be determined that the interference signal is not an interference signal generated when other terminals in the cell perform data transmission, thereby preventing channel interception of the terminal from being received by other terminals in the same cell.
  • the interference of data transmission improves the accuracy of the listening results.
  • the terminal may send the interception result to the network side device, and after receiving the interception result, the network side device determines the resource used for data transmission for the terminal according to the interception result, so as to improve The network side device allocates the accuracy of resources for data transmission.
  • FIG. 5 shows a flowchart of a channel listening method provided by an exemplary embodiment of the present application. This method can be used in the wireless communication system shown in FIG. As shown in FIG. 5, the channel listening method may include:
  • Step 501 The network side device determines a first interception resource for terminal channel interception, where the first interception resource is a resource other than the resource for each terminal data transmission in the cell where the terminal is located.
  • Step 502 The network side device sends the first interception indication information to the terminal, and the terminal receives the first interception indication information, where the first interception indication information is used to indicate the first interception resource.
  • Step 503 The terminal acquires a channel listening result corresponding to the first listening resource.
  • Step 504 The terminal sends the channel listening result to the network side device, and the network side device receives the channel listening result.
  • the first interception indication information is further used to obtain the channel listening result; the terminal determines the idle frequency domain resource corresponding to the first listening resource according to the channel listening result, and After the time domain interval corresponding to the first listening resource, the channel listening result is sent to the network side device on the idle frequency domain resource corresponding to the first listening resource.
  • Step 505 After receiving the channel interception result, the network side device determines a second transmission resource used for data transmission of the terminal.
  • the channel listening result comprises: at least one of a channel busy report and a channel idle report; the channel busy report includes the detected signal strength, signal power, duration, and sounding signal. At least one of a beam/sector number and an antenna number of the intercepted signal; the channel idle report includes at least one of an idle beam/sector number and an idle antenna number.
  • the network side device may allocate the second transmission resource to the terminal in combination with the foregoing channel idle report.
  • Step 506 The network side device sends transmission indication information to the terminal, where the transmission indication information is used to indicate the second transmission resource.
  • the network side device may carry the transmission indication information by using control information sent by the downlink.
  • Step 507 The terminal performs data transmission on the second transmission resource.
  • the terminal After receiving the foregoing transmission indication information, the terminal does not need to perform channel sensing before the second transmission resource, and directly performs data transmission on the second transmission resource, for example, performing uplink data transmission or uplink beam training.
  • FIG. 6 is a schematic diagram of interception and transmission according to an embodiment of the present application.
  • the terminal when the terminal accesses the network side device, the terminal sends the frequency domain resource that the terminal can listen to and the length of time required for the single listening, and the subsequent terminal needs to perform data transmission to the network side.
  • the device sends a channel listening request, and after receiving the channel listening request, the network side device acquires a frequency domain resource that the terminal can listen to and a duration required for a single listening, according to the frequency domain resource that the terminal can listen to.
  • the listening resource 1 is allocated to the terminal, and the listening resource 1 is not a resource allocated by the network side device to each terminal in the cell where the terminal is located for data transmission.
  • the network side device notifies the terminal of the interception resource 1 by using the control information, and after receiving the control information, the terminal performs channel sounding on the interception resource, and determines, according to the interception result, the idleness on the frequency domain resource corresponding to the interception resource.
  • the terminal After the frequency domain resource (or the idle frequency domain resource and the idle direction), after listening to the resource 1, the interception report is sent on the determined idle frequency domain resource (or the idle frequency domain resource and the idle direction), and the network side device receives the After the interception report, the terminal allocates the transmission resource 2 to the terminal, and notifies the terminal of the transmission resource 2 through the UL allocation. After receiving the UL allocation, the terminal performs data transmission on the transmission resource 2.
  • the network side device determines, for the terminal, the listening resource for performing channel sensing, and the network side device is the listening resource determined by the terminal, which is the network side device.
  • the terminal is allocated to the other terminal in the same cell as the resource for data transmission, that is, when the terminal listens on the listening resource, other terminals in the same cell are not on the listening resource.
  • Receiving or transmitting data if the terminal detects the interference signal, it may be determined that the interference signal is not an interference signal generated when other terminals in the cell perform data transmission, thereby preventing channel interception of the terminal from being received by other terminals in the same cell.
  • the interference of data transmission improves the accuracy of the listening results.
  • the terminal may send the interception result to the network side device, and the network side device further determines, for the terminal, the resource used for channel interception and the data transmission resource by using the interception result to improve the terminal.
  • the network side device allocates the accuracy of resources for channel sensing and data transmission.
  • FIG. 7 shows a flowchart of a channel listening method provided by an exemplary embodiment of the present application. This method can be used in the wireless communication system shown in FIG. As shown in FIG. 7, the channel listening method may include:
  • Step 701 The network side device determines a first interception resource for terminal channel interception, where the first interception resource is a resource other than the resource for each terminal data transmission in the cell where the terminal is located.
  • Step 702 The network side device sends the first interception indication information to the terminal, where the terminal receives the first interception indication information, where the first interception indication information is used to indicate the first interception resource.
  • Step 703 The terminal acquires a channel listening result corresponding to the first listening resource.
  • Step 704 The terminal sends the channel listening result to the network side device, and the network side device receives the channel listening result.
  • the first interception indication information is further used to obtain the channel listening result; the terminal determines the idle frequency domain resource corresponding to the first interception resource according to the channel listening result, and After the time domain interval corresponding to the first listening resource, the channel listening result is sent to the network side device on the idle frequency domain resource corresponding to the first listening resource.
  • Step 705 After receiving the channel listening result, the network side device determines a second transmission resource and a second interception resource for the terminal data transmission.
  • the channel listening result comprises: at least one of a channel busy report and a channel idle report; the channel busy report includes the detected signal strength, signal power, duration, and sounding signal. At least one of a beam/sector number and an antenna number of the intercepted signal; the channel idle report includes at least one of an idle beam/sector number and an idle antenna number.
  • the network side device may allocate the second transmission resource and the second interception resource to the terminal in combination with the foregoing channel idle report.
  • Step 706 The network side device sends the second interception indication information to the terminal, where the second interception indication information is used to indicate the second transmission resource and the second interception resource; and the terminal receives the second interception indication information.
  • the network side device may carry the transmission indication information by using control information sent by the downlink.
  • Step 707 The terminal determines the idle frequency domain resource corresponding to the second interception resource according to the interception result of the channel listening for the second interception resource, and in the time domain interval corresponding to the second transmission resource, Data transmission is performed on the idle frequency domain resource.
  • FIG. 8 is a schematic diagram of interception and transmission according to an embodiment of the present application.
  • the terminal when the terminal accesses the network side device, the terminal sends the frequency domain resource that the terminal can listen to and the length of time required for the single listening, and the subsequent terminal needs to perform data transmission to the network side.
  • the device sends a channel listening request, and after receiving the channel listening request, the network side device acquires a frequency domain resource that the terminal can listen to and a duration required for a single listening, according to the frequency domain resource that the terminal can listen to.
  • the listening resource 1 is allocated to the terminal, and the listening resource 1 is not a resource allocated by the network side device to each terminal in the cell where the terminal is located for data transmission.
  • the network side device notifies the terminal of the interception resource 1 by using the control information, and after receiving the control information, the terminal performs channel sounding on the interception resource, and determines, according to the interception result, the idleness on the frequency domain resource corresponding to the interception resource.
  • the frequency domain resource or the idle frequency domain resource and the idle direction
  • the interception report is sent on the determined idle frequency domain resource (or the idle frequency domain resource and the idle direction)
  • the network side device receives the After the listening report, the listening resource is allocated to the terminal, and the listening resource 2 and the transmission resource 3 are allocated to the terminal, and the listening resource 2 and the transmission resource 3 are notified to the terminal through the UL allocation.
  • the terminal After the terminal receives the UL allocation, the terminal listens to the resource. Perform channel interception on 2, determine idle frequency domain resources (or idle frequency domain resources and idle direction) according to the channel listening result, and determine the idle frequency domain resources (or idle) in the time domain interval corresponding to the transmission resource 3. Data transmission is performed on the frequency domain resource and the idle direction.
  • the network side device determines, for the terminal, the listening resource for performing channel sensing, and the network side device is the listening resource determined by the terminal, which is the network side device.
  • the terminal is allocated to the other terminal in the same cell as the resource for data transmission, that is, when the terminal listens on the listening resource, other terminals in the same cell are not on the listening resource.
  • Receiving or transmitting data if the terminal detects the interference signal, it may be determined that the interference signal is not an interference signal generated when other terminals in the cell perform data transmission, thereby preventing channel interception of the terminal from being received by other terminals in the same cell.
  • the interference of data transmission improves the accuracy of the listening results.
  • FIG. 9 is a schematic structural diagram of a network device provided by an exemplary embodiment of the present application.
  • the network device 90 may be the network side device 110 in the wireless communication system shown in FIG. 1 described above.
  • the network device 90 can include a processor 91, a transmitter/receiver 92, a memory 93, and a communication interface 94.
  • the processor 91 may include one or more processing units, which may be a central processing unit (CPU) or a network processor (NP).
  • processing units may be a central processing unit (CPU) or a network processor (NP).
  • CPU central processing unit
  • NP network processor
  • the transmitter/receiver 92 is configured to support wirelessly transmitting and receiving information between the network device and the terminal in the above embodiment.
  • the transmitter/receiver 92 may support at least one short-range wireless communication method (such as Antenna modules for wifi, Zigbee, and UWB, or cellular network communication methods (such as 2/3/4/5G).
  • the communication interface 94 is used to support communication between the network device and other network side devices, such as a core network device (such as a mobility management entity) and a bearer network device (such as a gateway device).
  • a core network device such as a mobility management entity
  • a bearer network device such as a gateway device
  • the processor 91 can be coupled to the memory 93 and the communication interface 94 via a bus.
  • the memory 93 can be used to store a software program that can be executed by the processor 91 to implement the method steps performed by the network side device in the embodiment illustrated in Figures 2, 5 or 7.
  • various types of service data or user data can also be stored in the memory 93.
  • FIG. 9 only shows a simplified design of a network device that may include any number of processors 91, transmitters/receivers 92, memory 93, and communication interfaces 94 in practical applications.
  • FIG. 10 is a schematic structural diagram of a network device according to an exemplary embodiment of the present application.
  • the network device 100 may be the terminal 120 in the wireless communication system shown in FIG. 1 described above.
  • the network device 100 can include a processor 101, a transmitter/receiver 102, and a memory 103.
  • the processor 101 may include one or more processing units, which may be a central processing unit (CPU) or a network processor (NP).
  • processing units may be a central processing unit (CPU) or a network processor (NP).
  • CPU central processing unit
  • NP network processor
  • the transmitter/receiver 102 is configured to support wirelessly transmitting and receiving information between the network device and the terminal in the above embodiment.
  • the transmitter/receiver 102 may support at least one short-range wireless communication method (such as Antenna modules for wifi, Zigbee, and UWB, or cellular network communication methods (such as 2/3/4/5G).
  • the processor 101 can be coupled to the memory 103 via a bus.
  • the memory 103 can be used to store software programs that can be executed by the processor 101 to implement the method steps performed by the terminal in the embodiment illustrated in Figures 2, 5 or 7.
  • various types of service data or user data can also be stored in the memory 103.
  • FIG. 10 only shows a simplified design of a network device, which in practical applications may include any number of processors 101, transmitters/receivers 102, and memory 103.
  • FIG. 11 is a structural block diagram of a network side device according to an embodiment of the present application.
  • the network side device may be the network side device 110 in the embodiment shown in FIG. 1 .
  • the network side device may include: a processing unit 1101 and a transceiver unit 1102;
  • the processing unit 1101 is configured to implement other steps related to data or information transmission and reception performed by the network side device in the embodiment shown in FIG. 2, 5 or 7, including but not limited to implementing related determination performed by the network side device.
  • the transceiver unit 1102 is configured to implement the steps of transmitting data or information performed by the network side device in the embodiment shown in FIG. 2, 5 or 7, and the step of receiving data or information performed by the network side device.
  • FIG. 12 is a structural block diagram of a terminal according to an embodiment of the present application.
  • the terminal may be the terminal 120 in the embodiment shown in FIG. 1 above.
  • the terminal may include a transceiver unit 1201 and a processing unit 1202.
  • the transceiver unit 1201 is configured to implement the steps related to information reception performed by the terminal in the embodiment shown in FIG. 2, 5 or 7, and the step of transmitting information related to the terminal.
  • the processing unit 1202 is configured to implement other steps related to data or information transmission and reception performed by the terminal in the embodiment shown in FIG. 2, 5 or 7, including but not limited to implementing acquisition of the interception result performed by the terminal, and The steps performed by the terminal to determine idle frequency domain resources (or determine idle frequency domain resources and idle direction).
  • the network side device and the terminal provided by the foregoing embodiment perform the interception resource determination or the channel interception, only the division of the above functional units is illustrated. In actual applications, the foregoing functions may be performed as needed. The assignment is done by different functional units, ie the internal structure of the device is divided into different functional units to perform all or part of the functions described above.
  • the network side device and the terminal provided by the foregoing embodiment are in the same concept as the method embodiment of the channel listening method, and the specific implementation process is described in detail in the method embodiment, and details are not described herein again.
  • the steps performed by the processor to implement the above embodiments may be performed by hardware, or may be controlled by related hardware, which may be stored in a computer readable storage.
  • the above-mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本申请公开了一种信道侦听方法、网络侧设备及终端，属于无线通信技术领域。该方法包括：网络侧设备确定用于终端信道侦听的第一侦听资源，该第一侦听资源是该终端所在的小区中用于各个终端数据传输的资源之外的其它资源；该网络侧设备向该终端发送第一侦听指示信息，该第一侦听指示信息用于指示该第一侦听资源；即终端在该第一侦听资源上进行侦听时，同小区内的其它终端不会在该第一侦听资源上接收或者发送数据，若终端侦听到干扰信号，则可以确定该干扰信号不是本小区内的其它终端进行数据传输时产生的干扰信号，从而能够避免终端的信道侦听受到同小区内其它终端的数据传输的干扰，提高侦听结果的准确性。

Description

信道侦听方法、网络侧设备及终端
本申请要求于2017年05月24日提交中国国家知识产权局、申请号为201710372917.8、发明名称为“信道侦听方法、网络侧设备及终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信技术领域，特别涉及一种信道侦听方法、网络侧设备及终端。
背景技术
信道侦听(carrier sense，CS)，又称为载波侦听，是指终端向网络侧设备发起数据传输之前，在数据传输所对应的频域资源上进行侦听的过程。
在相关技术中，网络侧设备为终端调度用于数据传输的传输资源，终端在侦听时，在网络侧设备调度的传输资源对应的时域之前侦听该传输资源对应的频域上的信道干扰情况，当侦听到对应的频域上存在信道干扰时，放弃数据传输，相应的，当侦听到对应的频域上不存在信道干扰(即信道空闲)时，终端在该传输资源上进行数据传输。
在实际应用中，终端进行信道侦听时，侦听的资源可能被网络侧设备分配给了同小区内其它终端进行数据传输，终端的信道侦听可能会受到同小区内其它终端的数据传输的干扰，导致侦听结果的准确性较低。
发明内容
为了提高侦听结果的准确性，本申请的实施例提供了一种信道侦听方法、网络侧设备及终端。
第一方面，提供了一种信道侦听方法，该方法包括：
网络侧设备确定用于终端信道侦听的第一侦听资源，所述第一侦听资源是所述终端所在的小区中用于各个终端数据传输的资源之外的其它资源；所述网络侧设备向所述终端发送第一侦听指示信息，所述第一侦听指示信息用于指示所述第一侦听资源。
在上述第一方面所示的方法中，网络侧设备确定终端用于进行信道侦听的侦听资源，且确定的侦听资源是终端所在小区中各个终端进行数据传输所使用的资源之外的其它资源，也就是说，网络侧设备将某一资源分配给终端进行侦听后，同样的资源不会再分配给同小区中的其它终端进行数据传输，这样能够保证终端在侦听资源上侦听到干扰信号一定是来自于相邻小区的干扰信号，而不是本小区其它终端进行数据传输所产生的干扰信号，从而避免终端的信道侦听受到同小区内其它终端的数据传输的干扰，提高侦听结果的准确性。
在一种可能的设计中，所述第一侦听指示信息中包含所述第一侦听资源占用的一个或多个时隙；或者，所述第一侦听指示信息包括所述第一帧听资源的开始时间和持续时间。
在一种可能的设计中，所述第一侦听指示信息还用于指示用于所述终端数据传输的第一传输资源，所述第一传输资源的时域区间在所述第一侦听资源的时域区间之后，且所述第一传输资源所占用的频域资源是所述第一侦听资源所占用的频域资源的全部或者部分。
在一种可能的设计中，所述第一侦听指示信息还用于获取终端的信道侦听结果，所述方 法还包括：所述网络侧设备接收所述终端发送的信道侦听结果，所述信道侦听结果为所述终端在所述第一侦听资源上对应的信道侦听结果。
在一种可能的设计中，所述信道侦听结果包括：信道忙报告和信道闲报告中的至少一种；
所述信道忙报告包括侦听到的信号强度、信号功率、持续时间、侦听到信号的波束/扇区编号以及侦听到信号的天线编号中的至少一种；
所述信道闲报告包括空闲的波束/扇区编号以及空闲的天线编号中的至少一种。
在一种可能的设计中，所述方法还包括：所述网络侧设备在收到所述信道侦听结果后，确定用于所述终端数据传输的第二传输资源；所述网络侧设备向所述终端发送传输指示信息，所述传输指示信息用于指示所述第二传输资源。
在上述可能的设计方案中，网络侧设备可以接收终端反馈的信道侦听结果，并根据信道侦听结果为终端分配传输资源，从而尽可能的避免终端的数据传输过程受到相邻小区中的数据传输过程的影响，提高数据传输效果。
在一种可能的设计中，所述方法还包括：所述网络侧设备在收到所述信道侦听结果后，确定用于所述终端信道侦听的第二侦听资源和用于所述终端数据传输的第二传输资源，所述第二传输资源的时域区间在所述第二侦听资源的时域区间之后，且所述第二传输资源所占用的频域资源是所述第二侦听资源所占用的频域资源的全部或者部分；所述网络侧设备向所述终端发送第二侦听指示信息，所述第二侦听指示信息用于指示所述第二侦听资源和所述第二传输资源。
在上述可能的设计方案中，网络侧设备接收终端反馈的信道侦听结果，为终端分配用于进一步侦听和数据传输的资源，提高资源分配效果。
在一种可能的设计中，所述方法还包括：所述网络侧设备确定用于终端信道侦听的第一侦听资源之前，获取所述终端的侦听能力信息，所述侦听能力信息包括可侦听的频域资源以及单次侦听所需时长中的至少一种；所述网络侧设备确定用于终端信道侦听的第一侦听资源，包括：所述网络侧设备根据所述终端的侦听能力信息确定所述第一侦听资源。
在上述可能的设计方案中，终端向网络侧设备提供自身的侦听能力信息，由网络侧设备根据终端的侦听能力信息为终端分配侦听资源，提高侦听资源的分配效果。
在一种可能的设计中，所述第一侦听资源包括时域资源和频域资源；或者，所述第一侦听资源包括时域资源、频域资源和侦听方向。
第二方面，提供了一种信道侦听方法，所述方法包括：终端接收网络侧设备发送的第一侦听指示信息，所述第一侦听指示信息用于指示第一侦听资源，所述第一侦听资源是所述终端所在的小区中用于各个终端数据传输的资源之外的其它资源；所述终端获取所述第一侦听资源上对应的信道侦听结果。
在一种可能的设计中，所述第一侦听指示信息还用于指示用于所述终端数据传输的第一传输资源，所述第一传输资源的时域区间在所述第一侦听资源的时域区间之后，且所述第一传输资源所占用的频域资源是所述第一侦听资源所占用的频域资源的全部或者部分；所述方法还包括：所述终端根据所述信道侦听结果确定所述第一传输资源对应的空闲频域资源；所述终端在所述第一传输资源对应的时域区间内，在所述空闲频域资源上进行数据传输。
在一种可能的设计中，所述第一侦听指示信息还用于获取所述信道侦听结果；所述方法还包括：所述终端根据所述信道侦听结果确定所述第一侦听资源对应的空闲频域资源；所述终端在所述第一侦听资源对应的时域区间之后，在所述第一侦听资源对应的空闲频域资源上向所述网络侧设备发送所述信道侦听结果。
在一种可能的设计中，所述方法还包括：所述终端接收所述网络侧设备发送的传输指示信息，所述传输指示信息用于指示所述网络侧设备在收到所述信道侦听结果后确定的第二传输资源；所述终端在所述第二传输资源上进行数据传输。
在一种可能的设计中，所述方法还包括：所述终端接收所述网络侧设备发送的第二侦听指示信息，所述第二侦听指示信息用于指示所述网络侧设备在收到所述信道侦听结果后确定的第二侦听资源和第二传输资源，所述第二传输资源的时域区间在所述第二侦听资源的时域区间之后，且所述第二传输资源所占用的频域资源是所述第二侦听资源的所占用的频域资源全部或者部分；所述终端根据对所述第二侦听资源进行信道侦听的侦听结果确定所述第二侦听资源对应的空闲频域资源；所述终端在所述第二传输资源对应的时域区间内，在所述空闲频域资源上进行数据传输。
在一种可能的设计中，所述终端接收网络侧设备发送的第一侦听指示信息之前，所述方法还包括：所述终端向所述网络侧设备发送所述终端的侦听能力信息，所述侦听能力信息包括可侦听的信道区间以及单次侦听所需时长中的至少一种。
在一种可能的设计中，所述信道侦听结果是所述终端在所述第一侦听资源上进行信道侦听获得的侦听结果；或者，所述信道侦听结果是所述终端在所述第一侦听资源对应的时域区间之前，对所述第一侦听资源所占用的频域资源进行信道侦听获得的侦听结果。
在上述可能的设计方案中，终端在接收到第一侦听资源之前，预先进行信道侦听，在接收到第一侦听资源之后，即可以获得预先侦听到的，该第一侦听资源对应的侦听结果，从而提高侦听结果获取的及时性。
第三方面，提供了一种网络侧设备，该网络侧设备包括：处理器和通信接口，所述通信接口被配置为由所述处理器控制；该处理器用于实现上述第一方面及第一方面的可能的设计方案所提供的信道侦听方法。
第四方面，提供了一种终端，该终端包括：处理器和通信接口，该通信接口被配置为由该处理器控制；该终端中的处理器用于实现上述第二方面及第二方面的可能的设计方案所提供的信道侦听方法。
第五方面，本申请提供了一种网络侧设备，该网络侧设备具有实现上述第一方面的信道侦听方法的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多于一个与上述功能相对应的单元。
第六方面，本申请提供了一种终端，该终端具有实现上述第二方面的信道侦听方法的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多于一个与上述功能相对应的单元。
第七方面，提供了一种计算机可读存储介质，该计算机可读存储介质存储有可执行程序，该可执行程序可以是用于实现上述第一方面及第一方面的可能的设计方案所提供的信道侦听方法，或者，该可执行程序可以是用于实现上述第二方面及第二方面的可能的设计方案所提供的信道侦听方法。
附图说明
图1是本申请实施例所涉及的无线通信系统的架构图；
图2是本申请一示例性实施例提供的信道侦听方法的流程图；
图3是图2所示实施例涉及的一种多级侦听示意图；
图4是图2所示实施例涉及的一种侦听及传输示意图；
图5是本申请一示例性实施例提供的信道侦听方法的流程图；
图6是图5所示实施例涉及的一种侦听及传输示意图；
图7是本申请一示例性实施例提供的信道侦听方法的流程图；
图8是图7所示实施例涉及的一种侦听及传输示意图；
图9是本申请的一个示例性实施例提供的网络设备的结构示意图；
图10是本申请的一个示例性实施例提供的网络设备的结构示意图；
图11是本申请的实施例提供的一种网络侧设备的结构方框图；
图12是本申请的实施例提供的一种终端的结构方框图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
图1是本申请实施例所涉及的无线通信系统的架构图。该无线通信系统可以是无线局域网(wireless local area networks，WLAN)系统；或者，该无线通信系统可以是第四代移动通信技术(the 4th generation mobile communication，4G)系统，又称长期演进(Long Term Evolution，LTE)系统；或者，该无线通信系统也可以是5G系统，又称新空口(new radio，NR)系统。该无线通信系统包括：网络侧设备110和终端120。
其中，网络侧设备110可以是无线局域网中的接入点(access point，AP)或者传输接收点(transmission reception point，TRP)。或者，网络侧设备110可以是4G系统中采用的演进型基站(eNB)。或者，网络侧设备110也可以是5G系统中采用集中分布式架构的基站(gNB)。当网络侧设备110采用集中分布式架构时，通常包括集中单元(central unit，CU)和至少两个分布单元(distributed unit，DU)。集中单元中设置有分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层、无线链路层控制协议(Radio Link Control，RLC)层、媒体访问控制(Media Access Control，MAC)层的协议栈；分布单元中设置有物理(Physical，PHY)层协议栈，本申请实施例对网络侧设备110的具体实现方式不加以限定。
网络侧设备110和终端120通过无线空口建立无线连接。在不同的实施方式中，该无线空口是基于第四代移动通信网络技术(4G)标准的无线空口；或者，该无线空口是基于 第五代移动通信网络技术(5G)标准的无线空口，比如该无线空口是新空口；或者，该无线空口也可以是基于5G的更下一代移动通信网络技术标准的无线空口。
终端120可以是指向用户提供语音和/或数据连通性的设备。终端120可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，终端120可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。例如，站(Station，STA)、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点、远程终端(remote terminal)、接入终端(access terminal)、用户装置(user terminal)、用户代理(user agent)、用户设备(user device)、或用户终端(user equipment，UE)。
需要说明的是，在图1所示的无线通信系统中，可以包括多个网络侧设备110和/或多个终端120，图1中以示出一个网络侧设备110和一个终端120来举例说明，但本实施例对此不作限定。
在本申请实施例中，网络侧设备110为终端120确定用于进行信道侦听的侦听资源，且网络侧设备110为终端120确定的侦听资源，是网络侧设备110分配给与该终端120处于同一小区的各个终端用作数据传输的资源之外的其它资源，即终端120在该侦听资源上进行侦听时，同小区内的其它终端不会在该侦听资源上接收或者发送数据，若终端120侦听到干扰信号，则可以确定该干扰信号不是本小区内的其它终端进行数据传输时产生的干扰信号，从而能够避免终端的信道侦听受到同小区内其它终端的数据传输的干扰，提高侦听结果的准确性。
请参考图2，其示出了本申请一个示例性实施例提供的信道侦听方法的流程图。该方法可以用于图1所示的无线通信系统中。如图2所示，该信道侦听方法可以包括：
步骤201，网络侧设备确定用于终端信道侦听的第一侦听资源，该第一侦听资源是该终端所在的小区中用于各个终端数据传输的资源之外的其它资源。
在本申请实施例中，终端需要进行信道侦听时，可以向网络侧设备发送信道侦听请求(CS requirement)，网络侧设备接收到该信道侦听请求后，即可以为该终端确定第一侦听资源。
其中，网络侧设备在为终端确定第一侦听资源时，可以从分配给该终端所在的小区中各个终端进行数据传输的资源之外的其它资源中确定该终端的第一侦听资源，并且，网络侧设备后续也不会将该第一侦听资源再分配给该终端所在的小区中的各个终端作数据传输使用。
在一种可能的设计中，上述第一侦听资源包括时域资源和频域资源。
在本申请实施例中，网络侧设备可以为终端确定用于信道侦听的时域资源(即侦听的时间段)和频域资源(该频域资源可以是侦听的频段、信道或者子信道等)，后续终端在进行信道侦听时，在指定的时域区间和频域资源上进行信道侦听。
在一种可能的设计中，上述第一侦听资源包括时域资源、频域资源和侦听方向。
波束成形是5G系统引入的关键技术之一。波束成形是指通过为对多个发射天线赋予特定的权重，使得多天线发射的信号相互叠加，形成特定的空间指向性。在5G系统中，发送设备可以通过不同的波束，同时向多个接收设备发送波束信号，从而实现对相同的时频资源 在不同空间中的重复使用(即空分复用)，极大的提高了系统容量。在本申请实施例中，若网络侧设备与终端之间通过波束成形技术进行通信，则当终端进行信道侦听时，除了需要在可用的频域资源上进行侦听之外，还需要在固定的方向上进行侦听，因此，当本申请实施例所示的方法用于5G系统时，网络侧设备确定的第一侦听资源除了包括时域资源和频域资源之外，还包含侦听方向。
在一种可能的设计中，终端可以将该终端的侦听能力信息发送给网络侧设备，该侦听能力信息包括可侦听的频域资源以及单次侦听所需时长中的至少一种，网络侧设备在确定第一侦听资源时，可以获取该终端的侦听能力信息，并根据该终端的侦听能力信息确定上述第一侦听资源。
由于不同的终端，其对信道的侦听能力也有所不同，比如，某个终端支持较宽的频段，而另一终端仅支持较窄的频段，或者某个终端支持一种频段，而另一终端则支持另一种频段；再比如，某个处理能力较强的终端在4个时隙内可以完成一次信道侦听，而另一处理能力较弱的终端完成一次信道侦听则需要7个时隙或者更多。若网络侧设备为终端分配的侦听资源的频段包括太多该终端无法侦听的频段，或者，网络侧设备为终端分配的侦听资源对应的时长过长，则会导致分配的资源浪费；若网络侧设备为终端确定的侦听资源的频段不包含或者包含较少的终端可以侦听的频段，或者，网络侧设备为终端确定的侦听资源对应的时长过短，不足以支持终端完成信道侦听，则会影响终端的侦听效果。因此，为了提高侦听资源的分配效果和资源利用率，在本申请实施例中，网络侧设备为终端确定上述第一侦听资源时，可以获取终端的侦听能力信息，即终端可侦听的频段和/或单次侦听所需的时长，并根据终端的侦听能力信息为终端确定第一侦听资源，比如，网络侧设备为终端确定的侦听资源的频段是终端可以侦听的频段，且分配的侦听资源的时长足够终端完成信道侦听，同时又不会超过太多。
在一种可能的设计中，终端可以在上述信道侦听请求中携带自身的侦听能力信息，或者，终端也可以在接入网络侧设备时，向网络侧设备发送自身的侦听能力信息。
由于上述第一侦听资源不会被分配给同小区中的终端进行数据传输，因此需要确保该第一侦听资源之后的同频段上的资源能够被其它小区抢占，因此，该第一侦听资源的时域区间的长度可以小于信道竞争的最短间隔时间。
步骤202，网络侧设备向该终端发送第一侦听指示信息，终端接收该第一侦听指示信息，该第一侦听指示信息用于指示该第一侦听资源。
网络侧设备可以根据确定的第一侦听资源生成第一侦听指示信息。
在一种可能的设计中，该第一侦听指示信息中包含该第一侦听资源占用的一个或多个时隙；或者，该第一侦听指示信息包括该第一帧听资源的开始时间和持续时间。
其中，该第一侦听指示信息中用于指示第一侦听资源的时域区间的信息，可以是时域的偏移量以及时域的长度。具体比如，假设终端进行一次侦听需要耗费一个单位时间片长度，且终端需要在第一侦听资源上进行一次或多次侦听(比如，当需要在多个方向上侦听时，则进行多次侦听)，则该第一侦听指示信息中可以包括第一侦听资源的起始时间片的偏移量N以及单位时间片个数M(即第一侦听资源对应的起始时间片是该第一侦听指示信息所在的单位时间片之后的第N个单位时间片，且第一侦听资源持续M个单位时间片)。其中，上述单位时间片的长度可以是一个自定义的固定时间长度，比如，一个单位时间片的长度可以 是固定数量个正交频分复用(orthogonal frequency division multiplexing，OFDM)符号长度或者时隙等。
或者，本申请实施例中也可以直接以时隙偏移量和时隙个数(或者OFDM符号偏移量和OFDM符号个数)来指示第一侦听资源的时域区间，比如，该第一侦听指示信息中可以包括第一侦听资源的符号偏移量n以及符号个数m(即第一侦听资源对应的起始符号是该第一侦听指示信息所在的OFDM符号之后的第n个OFDM符号，且第一侦听资源持续m个OFDM符号)。
在一种可能的设计中，该第一侦听指示信息中用于指示第一侦听资源所占用的时域资源可以是频段(频域范围)、信道编号或者信道子编号等。
在一种可能的设计中，当该第一侦听资源还包括侦听方向时，该第一侦听指示信息中用于指示侦听方向的信息是网络侧设备调度终端进行上行传输的扇区信息或者波束方向信息。其中，该波束方向信息具体可以是终端发送信号的发送波束方向，或者，是网络侧设备接收终端发送的信息时的接收波束方向。该波束方向可以是全向，即包含所有可能的方向；或者，该波束方向也可以是定向，即只包含部分可能的方向。
步骤203，终端获取该第一侦听资源上对应的信道侦听结果。
在一种可能的设计中，该信道侦听结果包括：信道忙报告和信道闲报告中的至少一种；该信道忙报告包括侦听到的信号强度、信号功率、持续时间、侦听到信号的波束/扇区编号以及侦听到信号的天线编号中的至少一种；该信道闲报告包括空闲的波束/扇区编号以及空闲的天线编号中的至少一种。
其中，终端获取到的侦听结果可以是该终端在该第一侦听资源上进行信道侦听获得的侦听结果。
比如，终端接收到上述第一侦听指示信息后，在第一侦听指示信息所指示的第一侦听资源上进行信道侦听。
具体比如，当第一侦听资源包含时域资源和频域资源时，在该第一侦听资源对应的时域区间内，终端监听第一侦听资源对应的频域资源上的信号强度，当某一频域资源上的信号强度满足预设条件(比如，信号强度大于预设的强度阈值)时，确定该频域资源上存在干扰信号，可能是相邻小区中的网络侧设备和终端正在通过该频域资源进行通信，相应的，若该频域资源上的信号强度不满足预设条件(比如，信号强度不大于预设的强度阈值)，则说明该频域资源上不存在干扰信号，即该频域资源是空闲频域资源。
此外，当第一侦听资源还包含侦听方向时，终端可以根据侦听目的(即后续需要执行的数据传输的具体传输类型)选择合适的侦听方式。
比如，当侦听目的为上行数据发送时，该侦听方向通常为一个或多个窄波束方向，此时，终端可以在侦听方向所指示的一个或多个窄波束方向上进行信道侦听。
或者，当侦听目的为上行波束训练时，该侦听方向通常是一个较为宽泛的方向(比如一个扇区)，此时，终端可以通过多级侦听的方式确定该第一侦听资源对应的频域资源的空闲方向或者干扰方向。比如，请参考图3，其示出了本申请实施例涉及的一种多级侦听示意图，以终端侦听确定干扰方向为例，在图3a中，第一侦听指示信息所指示的侦听方向是一个扇区31，终端在第一级侦听时，将扇区31划分成多个(图3b示出了为两个，即侦听方向32和侦听方向33)侦听方向，通过分别在侦听方向32和侦听方向33上进行信道侦听，确定 哪一个方向是干扰方向，比如，在图3b中，终端通过侦听确定侦听方向33为干扰方向，而侦听方向32为空闲方向；之后，终端对侦听方向33进行二级侦听，即将侦听方向33划分为多个(图3c示出了为两个即侦听方向34和侦听方向35)侦听方向，通过分别在侦听方向34和侦听方向35上进行信道侦听，确定哪一个方向是干扰方向，比如，在图3c中，终端通过侦听确定侦听方向35为干扰方向，而侦听方向34为空闲方向；最后，终端再对侦听方向35进行二级侦听，即将侦听方向35划分为多个(图3d示出了为两个即侦听方向36和侦听方向37)侦听方向，通过分别在侦听方向36和侦听方向37上进行信道侦听，确定哪一个方向是干扰方向，比如，在图3d中，终端通过侦听确定侦听方向36为干扰方向，而侦听方向37为空闲方向。
在一种可能的设计中，上述信道侦听结果是该终端在该第一侦听资源对应的时域区间之前，对该第一侦听资源占用的频域资源进行信道侦听获得的侦听结果。
在本申请实施例中，为了在接收到第一侦听指示信息后尽快获取到侦听结果，终端可以在接收到第一侦听指示信息之前，选择在部分或者全部可用的资源上进行信道侦听并缓存侦听结果，当终端接收到第一侦听指示信息时，可以判断在接收到该第一侦听指示信息之前的预定长度时间段内(比如，在接收到第一侦听指示信息之前的若干个单位时间片、时隙或者OFDM符号内)，是否已经对该第一侦听资源中的全部或者部分资源进行了侦听，若是，则获取对第一侦听资源中已侦听的资源的侦听结果，若第一侦听资源中还包含在上述预定长度时间段内未侦听过的资源，则终端在上述未侦听过的资源上进行信道侦听。
步骤204，终端根据上述信道侦听结果进行数据传输。
在本申请实施例中，终端进行的数据传输可以是向网络侧设备发送上行数据；或者，当本申请实施例所示的方案用于5G系统时，上述数据传输除了是向网络侧设备发送上行数据之外，还可以进行上行波束训练。
在本申请实施例中，终端获取到信道侦听结果后，即可以根据信道侦听结果确定空闲频域资源，或者，确定空闲方向和空闲频域资源；之后，终端在确定的空闲频域资源，或者，在确定的空闲方向和空闲频域资源上进行数据传输。
在一种可能的设计中，上述第一侦听指示信息除了指示第一侦听资源之外，还指示用于该终端数据传输的第一传输资源，该第一传输资源的时域区间在该第一侦听资源的时域区间之后，且该第一传输资源所占用的频域资源是该第一侦听资源所占用的频域资源的全部或者部分；该终端根据该信道侦听结果确定该第一传输资源对应的空闲频域资源，并在该第一传输资源对应的时域区间内，在该空闲频域资源上进行数据传输。
在一种可能的设计中，若本申请实施例所示的方法应用在5G系统中，则在第一传输资源上进行数据传输时，终端在该第一传输资源对应的时域区间内，在侦听结果对应的空闲方向的空闲频域资源上进行数据传输。
在一种可能的设计中，上述数据传输可以是发送上行数据，比如发送上行物理层协议数据单元(physical layer protocol data unit，PPDU)。或者，上述数据传输也可以是进行上行波束训练。
其中，终端在上行波束训练时，可能会在多个方向上进行波束训练。在本申请实施例中，当数据传输为上行波束训练时，终端可以先对每一个侦听方向进行波束侦听，并根据侦听结果，选择在空闲方向上进行上行波束训练。或者，终端也可以对每一个侦听方向依次进行侦 听和上行波束训练；比如，终端在一个侦听方向上进行侦听后，根据侦听结果判断是否在该侦听方向上进行波束训练；具体的，当该侦听方向是空闲方向时，终端在该侦听方向上进行上行波束训练，并在该侦听方向上的上行波束训练完成后，在下一个侦听方向上进行信道侦听；或者，当该侦听方向是干扰方向时，终端放弃在该侦听方向上进行上行波束训练，并转到下一个侦听方向上进行信道侦听。
请参考图4，其示出了本申请实施例涉及的一种侦听及传输示意图。如图4所示，终端在接入网络侧设备时，向网络侧设备发送该终端可侦听的频域资源和单次侦听所需的时长，后续终端需要进行数据传输时，向网络侧设备发送信道侦听请求，网络侧设备接收到该信道侦听请求后，获取该终端可侦听的频域资源和单次侦听所需的时长，根据该终端可侦听的频域资源和单次侦听所需的时长为终端确定侦听资源1和传输资源1，其中，该侦听资源1和传输资源1对应相同的频域资源，且侦听资源1在传输资源1之前，并且，该侦听资源1不是网络侧设备分配给该终端所在小区中的各个终端进行数据传输的资源。网络侧设备通过上行传输资源分配信息(up link allocation，UL allocation)向终端通知该侦听资源1在传输资源1，终端接收到该上行传输资源分配信息后，在侦听资源上进行信道侦听，根据侦听结果确定该侦听资源对应的频域资源上的空闲频域资源后，在传输资源1对应的时域区间内，终端在该空闲频域资源上进行数据传输。
综上所述，本申请实施例所示的信道侦听方法，网络侧设备为终端确定用于进行信道侦听的侦听资源，且网络侧设备为终端确定的侦听资源，是网络侧设备分配给与该终端处于同一小区的各个终端用作数据传输的资源之外的其它资源，即终端在该侦听资源上进行侦听时，同小区内的其它终端不会在该侦听资源上接收或者发送数据，若终端侦听到干扰信号，则可以确定该干扰信号不是本小区内的其它终端进行数据传输时产生的干扰信号，从而能够避免终端的信道侦听受到同小区内其它终端的数据传输的干扰，提高侦听结果的准确性。
在另一种可能的实现方式中，终端可以将侦听结果发送给网络侧设备，由网络侧设备在接收到侦听结果后，结合侦听结果为终端确定用于数据传输的资源，以提高网络侧设备分配用于数据传输的资源的准确性。
请参考图5，其示出了本申请一个示例性实施例提供的信道侦听方法的流程图。该方法可以用于图1所示的无线通信系统中。如图5所示，该信道侦听方法可以包括：
步骤501，网络侧设备确定用于终端信道侦听的第一侦听资源，该第一侦听资源是该终端所在的小区中用于各个终端数据传输的资源之外的其它资源。
步骤502，网络侧设备向该终端发送第一侦听指示信息，终端接收该第一侦听指示信息，该第一侦听指示信息用于指示该第一侦听资源。
步骤503，终端获取该第一侦听资源上对应的信道侦听结果。
其中，上述步骤501至步骤503的实现过程可以参考上述图2所示的实施例中步骤201至步骤203下的描述，此处不再赘述。
步骤504，终端向网络侧设备发送该信道侦听结果，网络侧设备接收该信道侦听结果。
在一种可能的设计中，该第一侦听指示信息还用于获取该信道侦听结果；该终端结合该信道侦听结果确定该第一侦听资源对应的空闲频域资源，并在该第一侦听资源对应的时域区间之后，在该第一侦听资源对应的空闲频域资源上向该网络侧设备发送该信道侦听结果。
步骤505，网络侧设备在收到该信道侦听结果后，确定用于该终端数据传输的第二传输资源。
在一种可能的设计中，该信道侦听结果包括：信道忙报告和信道闲报告中的至少一种；该信道忙报告包括侦听到的信号强度、信号功率、持续时间、侦听到信号的波束/扇区编号以及侦听到信号的天线编号中的至少一种；该信道闲报告包括空闲的波束/扇区编号以及空闲的天线编号中的至少一种。相应的，网络侧设备可以结合上述信道闲报告为终端分配第二传输资源。
步骤506，网络侧设备向该终端发送传输指示信息，该传输指示信息用于指示该第二传输资源。
在一种可能的设计中，网络侧设备可以通过下行发送的控制信息携带该传输指示信息。
步骤507，终端在上述第二传输资源上进行数据传输。
其中，终端在接收到上述传输指示信息后，不需要在第二传输资源之前进行信道侦听，直接就可以在第二传输资源上进行数据传输，比如，进行上行数据发送或者上行波束训练。
请参考图6，其示出了本申请实施例涉及的一种侦听及传输示意图。如图6所示，终端在接入网络侧设备时，向网络侧设备发送该终端可侦听的频域资源和单次侦听所需的时长，后续终端需要进行数据传输时，向网络侧设备发送信道侦听请求，网络侧设备接收到该信道侦听请求后，获取该终端可侦听的频域资源和单次侦听所需的时长，根据该终端可侦听的频域资源和单次侦听所需的时长为终端分配侦听资源1，其中，该侦听资源1不是网络侧设备分配给该终端所在小区中的各个终端进行数据传输的资源。网络侧设备通过控制信息向终端通知该侦听资源1，终端接收到该控制信息后，在侦听资源上进行信道侦听，根据侦听结果确定该侦听资源对应的频域资源上的空闲频域资源(或者空闲频域资源以及空闲方向)后，在侦听资源1之后，在确定的空闲频域资源(或者空闲频域资源以及空闲方向)上发送侦听报告，网络侧设备接收到侦听报告后，结合侦听报告，为终端分配传输资源2，并通过UL allocation向终端通知该传输资源2，终端接收到UL allocation后，在该传输资源2上进行数据传输。
综上所述，本申请实施例所示的信道侦听方法，网络侧设备为终端确定用于进行信道侦听的侦听资源，且网络侧设备为终端确定的侦听资源，是网络侧设备分配给与该终端处于同一小区的各个终端用作数据传输的资源之外的其它资源，即终端在该侦听资源上进行侦听时，同小区内的其它终端不会在该侦听资源上接收或者发送数据，若终端侦听到干扰信号，则可以确定该干扰信号不是本小区内的其它终端进行数据传输时产生的干扰信号，从而能够避免终端的信道侦听受到同小区内其它终端的数据传输的干扰，提高侦听结果的准确性。
在另一种可能的实现方式中，终端可以将侦听结果发送给网络侧设备，由网络侧设备结合侦听结果进一步的为终端确定用于信道侦听的资源和数据传输的资源，以提高网络侧设备分配用于信道侦听和数据传输的资源的准确性。
请参考图7，其示出了本申请一个示例性实施例提供的信道侦听方法的流程图。该方法可以用于图1所示的无线通信系统中。如图7所示，该信道侦听方法可以包括：
步骤701，网络侧设备确定用于终端信道侦听的第一侦听资源，该第一侦听资源是该终端所在的小区中用于各个终端数据传输的资源之外的其它资源。
步骤702，网络侧设备向该终端发送第一侦听指示信息，终端接收该第一侦听指示信息，该第一侦听指示信息用于指示该第一侦听资源。
步骤703，终端获取该第一侦听资源上对应的信道侦听结果。
其中，上述步骤701至步骤703的实现过程可以参考上述图2所示的实施例中步骤201至步骤203下的描述，此处不再赘述。
步骤704，终端向网络侧设备发送该信道侦听结果，网络侧设备接收该信道侦听结果。
在一种可能的设计中，该第一侦听指示信息还用于获取该信道侦听结果；该终端根据该信道侦听结果确定该第一侦听资源对应的空闲频域资源，并在该第一侦听资源对应的时域区间之后，在该第一侦听资源对应的空闲频域资源上向该网络侧设备发送该信道侦听结果。
步骤705，网络侧设备在收到该信道侦听结果后，确定用于该终端数据传输的第二传输资源和第二侦听资源。
在一种可能的设计中，该信道侦听结果包括：信道忙报告和信道闲报告中的至少一种；该信道忙报告包括侦听到的信号强度、信号功率、持续时间、侦听到信号的波束/扇区编号以及侦听到信号的天线编号中的至少一种；该信道闲报告包括空闲的波束/扇区编号以及空闲的天线编号中的至少一种。相应的，网络侧设备可以结合上述信道闲报告为终端分配第二传输资源和第二侦听资源。
步骤706，网络侧设备向该终端发送第二侦听指示信息，该第二侦听指示信息用于指示该第二传输资源和第二侦听资源；终端接收该第二侦听指示信息。
在一种可能的设计中，网络侧设备可以通过下行发送的控制信息携带该传输指示信息。
步骤707，该终端根据对该第二侦听资源进行信道侦听的侦听结果确定该第二侦听资源对应的空闲频域资源，并在该第二传输资源对应的时域区间内，在该空闲频域资源上进行数据传输。
请参考图8，其示出了本申请实施例涉及的一种侦听及传输示意图。如图8所示，终端在接入网络侧设备时，向网络侧设备发送该终端可侦听的频域资源和单次侦听所需的时长，后续终端需要进行数据传输时，向网络侧设备发送信道侦听请求，网络侧设备接收到该信道侦听请求后，获取该终端可侦听的频域资源和单次侦听所需的时长，根据该终端可侦听的频域资源和单次侦听所需的时长为终端分配侦听资源1，其中，该侦听资源1不是网络侧设备分配给该终端所在小区中的各个终端进行数据传输的资源。网络侧设备通过控制信息向终端通知该侦听资源1，终端接收到该控制信息后，在侦听资源上进行信道侦听，根据侦听结果确定该侦听资源对应的频域资源上的空闲频域资源(或者空闲频域资源和空闲方向)后，在侦听资源1之后，在确定的空闲频域资源(或者空闲频域资源和空闲方向)上发送侦听报告，网络侧设备接收到侦听报告后，结合侦听报告为终端分配侦听资源2和传输资源3，并通过UL allocation向终端通知该侦听资源2和传输资源3，终端接收到UL allocation后，在该侦听资源2上进行信道侦听，根据信道侦听结果确定空闲频域资源(或者空闲频域资源和空闲方向)，并在传输资源3对应的时域区间内，在确定的空闲频域资源(或者空闲频域资源和空闲方向)上进行数据传输。
综上所述，本申请实施例所示的信道侦听方法，网络侧设备为终端确定用于进行信道侦听的侦听资源，且网络侧设备为终端确定的侦听资源，是网络侧设备分配给与该终端处于同一小区的各个终端用作数据传输的资源之外的其它资源，即终端在该侦听资源上进行侦听 时，同小区内的其它终端不会在该侦听资源上接收或者发送数据，若终端侦听到干扰信号，则可以确定该干扰信号不是本小区内的其它终端进行数据传输时产生的干扰信号，从而能够避免终端的信道侦听受到同小区内其它终端的数据传输的干扰，提高侦听结果的准确性。
请参考图9，其示出了本申请的一个示例性实施例提供的网络设备的结构示意图。该网络设备90可以是上述图1所示无线通信系统中的网络侧设备110。
该网络设备90可以包括：处理器91、发射器/接收器92、存储器93和通信接口94。
处理器91可以包括一个或者一个以上处理单元，该处理单元可以是中央处理单元(英文：central processing unit，CPU)或者网络处理器(英文：network processor，NP)等。
发射器/接收器92用于支持网络设备与上述实施例中的所述终端之间通过无线方式收发信息，例如，该发射器/接收器92可以是支持至少一种短距离无线通信方式(比如wifi、紫蜂以及超宽带等)或者蜂窝网络通信方式(比如2/3/4/5G)的天线模组。
该通信接口94用于支持网络设备与其他网络侧设备之间的通信，比如核心网设备(比如移动性管理实体)以及承载网设备(比如网关设备)。
在其他的实施方式中，处理器91可以通过总线与存储器93和通信接口94相连。存储器93可用于存储软件程序，该软件程序可以由处理器91执行，以实现图2、5或7所示的实施例中由网络侧设备执行的方法步骤。此外，该存储器93中还可以存储各类业务数据或者用户数据。
可以理解的是，图9仅仅示出了网络设备的简化设计，在实际应用中，所述网络设备可以包含任意数量的处理器91、发射器/接收器92、存储器93和通信接口94。
请参考图10，其示出了本申请的一个示例性实施例提供的网络设备的结构示意图。该网络设备100可以是上述图1所示无线通信系统中的终端120。
该网络设备100可以包括：处理器101、发射器/接收器102和存储器103。
处理器101可以包括一个或者一个以上处理单元，该处理单元可以是中央处理单元(英文：central processing unit，CPU)或者网络处理器(英文：network processor，NP)等。
发射器/接收器102用于支持网络设备与上述实施例中的所述终端之间通过无线方式收发信息，例如，该发射器/接收器102可以是支持至少一种短距离无线通信方式(比如wifi、紫蜂以及超宽带等)或者蜂窝网络通信方式(比如2/3/4/5G)的天线模组。
在其他的实施方式中，处理器101可以通过总线与存储器103相连。存储器103可用于存储软件程序，该软件程序可以由处理器101执行，以实现图2、5或7所示的实施例中由终端执行的方法步骤。此外，该存储器103中还可以存储各类业务数据或者用户数据。
可以理解的是，图10仅仅示出了网络设备的简化设计，在实际应用中，所述网络设备可以包含任意数量的处理器101、发射器/接收器102以及存储器103。
图11是本申请的实施例提供的一种网络侧设备的结构方框图，该网络侧设备可以是上述图1所示的实施例中的网络侧设备110。该网络侧设备可以包括：处理单元1101和收发单元1102；
其中，处理单元1101，用于实现图2、5或7所示实施例中由网络侧设备执行的有关数 据或信息收发之外的其它步骤，包括但不限于实现由网络侧设备执行的有关确定侦听资源或传输资源、以及由网络侧设备执行的有关获取终端的侦听能力信息的步骤。
收发单元1102，用于实现图2、5或7所示实施例中由网络侧设备执行的有关数据或信息发送的步骤，以及由网络侧设备执行的有关数据或信息接收的步骤。
图12是本申请的实施例提供的一种终端的结构方框图，该终端可以是上述图1所示的实施例中的终端120。该终端可以包括：收发单元1201和处理单元1202。
收发单元1201，用于实现图2、5或7所示实施例中由终端执行的有关信息接收的步骤，以及由终端执行的有关信息发送的步骤。
处理单元1202，用于实现图2、5或7所示实施例中由终端执行的有关数据或信息收发之外的其它步骤，包括但不限于实现由终端执行的有关侦听结果获取、以及由终端执行的有关确定空闲频域资源(或者确定空闲频域资源以及空闲方向)的步骤。
需要说明的是：上述实施例提供的网络侧设备和终端在进行侦听资源确定或者信道侦听时，仅以上述各功能单元的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能单元完成，即将设备的内部结构划分成不同的功能单元，以完成以上描述的全部或者部分功能。另外，上述实施例提供的网络侧设备和终端与信道侦听方法的方法实施例属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
上述本申请的实施例序号仅仅为了描述，不代表实施例的优劣。
本领域普通技术人员可以理解实现上述实施例由处理器执行的全部或部分步骤可以通过硬件来完成，也可以通过指令来控制相关的硬件完成，所述的指令可以存储于一种计算机可读存储介质中，上述提到的计算机可读存储介质可以是只读存储器，磁盘或光盘等。
以上所述，仅为本申请能够实现的一种具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，以权利要求为基础进行变化或替换所得到的方案，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应该以权利要求的保护范围为准。

Claims (34)

  1. 一种信道侦听方法，其特征在于，所述方法包括：
    网络侧设备确定用于终端信道侦听的第一侦听资源，所述第一侦听资源是所述终端所在的小区中用于各个终端数据传输的资源之外的其它资源；
    所述网络侧设备向所述终端发送第一侦听指示信息，所述第一侦听指示信息用于指示所述第一侦听资源。
  2. 根据权利要求1所述的方法，其特征在于，
    所述第一侦听指示信息中包含所述第一侦听资源占用的一个或多个时隙；
    或者，
    所述第一侦听指示信息包括所述第一帧听资源的开始时间和持续时间。
  3. 根据权利要求1所述的方法，其特征在于，所述第一侦听指示信息还用于指示用于所述终端数据传输的第一传输资源，所述第一传输资源的时域区间在所述第一侦听资源的时域区间之后，且所述第一传输资源所占用的频域资源是所述第一侦听资源所占用的频域资源的全部或者部分。
  4. 根据权利要求1所述的方法，其特征在于，所述第一侦听指示信息还用于获取终端的信道侦听结果，所述方法还包括：
    所述网络侧设备接收所述终端发送的信道侦听结果，所述信道侦听结果为所述终端在所述第一侦听资源上对应的信道侦听结果。
  5. 根据权利要求4所述的方法，其特征在于，所述信道侦听结果包括：信道忙报告和信道闲报告中的至少一种；
    所述信道忙报告包括侦听到的信号强度、信号功率、持续时间、侦听到信号的波束/扇区编号以及侦听到信号的天线编号中的至少一种；
    所述信道闲报告包括空闲的波束/扇区编号以及空闲的天线编号中的至少一种。
  6. 根据权利要求4或5所述的方法，其特征在于，所述方法还包括：
    所述网络侧设备在收到所述信道侦听结果后，确定用于所述终端数据传输的第二传输资源；
    所述网络侧设备向所述终端发送传输指示信息，所述传输指示信息用于指示所述第二传输资源。
  7. 根据权利要求4或5所述的方法，其特征在于，所述方法还包括：
    所述网络侧设备在收到所述信道侦听结果后，确定用于所述终端信道侦听的第二侦听资源和用于所述终端数据传输的第二传输资源，所述第二传输资源的时域区间在所述第二侦听资源的时域区间之后，且所述第二传输资源所占用的频域资源是所述第二侦听资源所占用的 频域资源的全部或者部分；
    所述网络侧设备向所述终端发送第二侦听指示信息，所述第二侦听指示信息用于指示所述第二侦听资源和所述第二传输资源。
  8. 根据权利要求1至5任一所述的方法，其特征在于，所述方法还包括：
    所述网络侧设备确定用于终端信道侦听的第一侦听资源之前，获取所述终端的侦听能力信息，所述侦听能力信息包括可侦听的频域资源以及单次侦听所需时长中的至少一种；
    所述网络侧设备确定用于终端信道侦听的第一侦听资源，包括：
    所述网络侧设备根据所述终端的侦听能力信息确定所述第一侦听资源。
  9. 一种信道侦听方法，其特征在于，所述方法包括：
    终端接收网络侧设备发送的第一侦听指示信息，所述第一侦听指示信息用于指示第一侦听资源，所述第一侦听资源所述终端所在的小区中用于各个终端数据传输的资源之外的其它资源；
    所述终端获取所述第一侦听资源上对应的信道侦听结果。
  10. 根据权利要求9所述的方法，其特征在于，所述第一侦听指示信息还用于指示用于所述终端数据传输的第一传输资源，所述第一传输资源的时域区间在所述第一侦听资源的时域区间之后，且所述第一传输资源所占用的频域资源是所述第一侦听资源所占用的频域资源的全部或者部分；所述方法还包括：
    所述终端根据所述信道侦听结果确定所述第一传输资源对应的空闲频域资源；
    所述终端在所述第一传输资源对应的时域区间内，在所述空闲频域资源上进行数据传输。
  11. 根据权利要求9所述的方法，其特征在于，所述第一侦听指示信息还用于获取所述信道侦听结果；所述方法还包括：
    所述终端根据所述信道侦听结果确定所述第一侦听资源对应的空闲频域资源；
    所述终端在所述第一侦听资源对应的时域区间之后，在所述第一侦听资源对应的空闲频域资源上向所述网络侧设备发送所述信道侦听结果。
  12. 根据权利要求11所述的方法，其特征在于，所述方法还包括：
    所述终端接收所述网络侧设备发送的传输指示信息，所述传输指示信息用于指示所述网络侧设备在收到所述信道侦听结果后确定的第二传输资源；
    所述终端在所述第二传输资源上进行数据传输。
  13. 根据权利要求11所述的方法，其特征在于，所述方法还包括：
    所述终端接收所述网络侧设备发送的第二侦听指示信息，所述第二侦听指示信息用于指示所述网络侧设备在收到所述信道侦听结果后确定的第二侦听资源和第二传输资源，所述第二传输资源的时域区间在所述第二侦听资源的时域区间之后，且所述第二传输资源所占用的频域资源是所述第二侦听资源所占用的频域资源的全部或者部分；
    所述终端根据对所述第二侦听资源进行信道侦听的侦听结果确定所述第二侦听资源对应的空闲频域资源；
    所述终端在所述第二传输资源对应的时域区间内，在所述空闲频域资源上进行数据传输。
  14. 根据权利要求9至13任一所述的方法，其特征在于，所述终端接收网络侧设备发送的第一侦听指示信息之前，所述方法还包括：
    所述终端向所述网络侧设备发送所述终端的侦听能力信息，所述侦听能力信息包括可侦听的信道区间以及单次侦听所需时长中的至少一种。
  15. 根据权利要求9至13任一所述的方法，其特征在于，
    所述信道侦听结果是所述终端在所述第一侦听资源上进行信道侦听获得的侦听结果；
    或者，
    所述信道侦听结果是所述终端在所述第一侦听资源对应的时域区间之前，对所述第一侦听资源所占用的频域资源进行信道侦听获得的侦听结果。
  16. 一种网络侧设备，其特征在于，所述网络侧设备包括：
    处理单元，用于确定用于终端信道侦听的第一侦听资源，所述第一侦听资源是所述终端所在的小区中用于各个终端数据传输的资源之外的其它资源；
    收发单元，用于向所述终端发送第一侦听指示信息，所述第一侦听指示信息用于指示所述第一侦听资源。
  17. 根据权利要求16所述的网络侧设备，其特征在于，
    所述第一侦听指示信息中包含所述第一侦听资源占用的一个或多个时隙；
    或者，
    所述第一侦听指示信息包括所述第一帧听资源的开始时间和持续时间。
  18. 根据权利要求16所述的网络侧设备，其特征在于，所述第一侦听指示信息还用于指示用于所述终端数据传输的第一传输资源，所述第一传输资源的时域区间在所述第一侦听资源的时域区间之后，且所述第一传输资源所占用的频域资源是所述第一侦听资源所占用的频域资源的全部或者部分。
  19. 根据权利要求16所述的网络侧设备，其特征在于，所述第一侦听指示信息还用于获取终端的信道侦听结果，
    所述收发单元，还用于接收所述终端发送的信道侦听结果，所述信道侦听结果为所述终端在所述第一侦听资源上对应的信道侦听结果。
  20. 根据权利要求19所述的网络侧设备，其特征在于，所述信道侦听结果包括：信道忙报告和信道闲报告中的至少一种；
    所述信道忙报告包括侦听到的信号强度、信号功率、持续时间、侦听到信号的波束/扇区 编号以及侦听到信号的天线编号中的至少一种；
    所述信道闲报告包括空闲的波束/扇区编号以及空闲的天线编号中的至少一种。
  21. 根据权利要求19或20所述的网络侧设备，其特征在于，
    所述处理单元，还用于在收到所述信道侦听结果后，确定用于所述终端数据传输的第二传输资源；
    所述收发单元，还用于向所述终端发送传输指示信息，所述传输指示信息用于指示所述第二传输资源。
  22. 根据权利要求19或20所述的网络侧设备，其特征在于，
    所述处理单元，还用于在收到所述信道侦听结果后，确定用于所述终端信道侦听的第二侦听资源和用于所述终端数据传输的第二传输资源，所述第二传输资源的时域区间在所述第二侦听资源的时域区间之后，且所述第二传输资源所占用的频域资源是所述第二侦听资源所占用的频域资源的全部或者部分；
    所述收发单元，还用于向所述终端发送第二侦听指示信息，所述第二侦听指示信息用于指示所述第二侦听资源和所述第二传输资源。
  23. 根据权利要求16至20任一所述的网络侧设备，其特征在于，所述处理单元用于：
    在确定用于终端信道侦听的第一侦听资源之前，获取所述终端的侦听能力信息，所述侦听能力信息包括可侦听的频域资源以及单次侦听所需时长中的至少一种；
    在确定用于终端信道侦听的第一侦听资源时，所述处理单元，具体用于根据所述终端的侦听能力信息确定所述第一侦听资源。
  24. 一种终端，其特征在于，所述终端包括：
    收发单元，用于接收网络侧设备发送的第一侦听指示信息，所述第一侦听指示信息用于指示第一侦听资源，所述第一侦听资源所述是终端所在的小区中用于各个终端数据传输的资源之外的其它资源；
    处理单元，用于获取所述第一侦听资源上对应的信道侦听结果。
  25. 根据权利要求24所述的终端，其特征在于，所述第一侦听指示信息还用于指示用于所述终端数据传输的第一传输资源，所述第一传输资源的时域区间在所述第一侦听资源的时域区间之后，且所述第一传输资源所占用的频域资源是所述第一侦听资源所占用的频域资源的全部或者部分；
    所述处理单元，还用于根据所述信道侦听结果确定所述第一传输资源对应的空闲频域资源，以在所述第一传输资源对应的时域区间内在所述空闲频域资源上进行数据传输。
  26. 根据权利要求24所述的终端，其特征在于，所述第一侦听指示信息还用于获取所述信道侦听结果；所述处理单元还用于根据所述信道侦听结果确定所述第一侦听资源对应的空闲频域资源；
    所述收发单元，还用于在所述第一侦听资源对应的时域区间之后，在所述第一侦听资源对应的空闲频域资源上向所述网络侧设备发送所述信道侦听结果。
  27. 根据权利要求26所述的终端，其特征在于，
    所述收发单元，还用于接收所述网络侧设备发送的传输指示信息，所述传输指示信息用于指示所述网络侧设备在收到所述信道侦听结果后确定用于数据传输的第二传输资源。
  28. 根据权利要求26所述的终端，其特征在于，
    所述收发单元，还用于接收所述网络侧设备发送的第二侦听指示信息，所述第二侦听指示信息用于指示所述网络侧设备在收到所述信道侦听结果后确定的第二侦听资源和第二传输资源，所述第二传输资源的时域区间在所述第二侦听资源的时域区间之后，且所述第二传输资源所占用的频域资源是所述第二侦听资源所占用的频域资源的全部或者部分；
    所述处理单元，用于根据对所述第二侦听资源进行信道侦听的侦听结果确定所述第二侦听资源对应的空闲频域资源，以在第二传输资源对应的时域区间内，在所述空闲频域资源上进行数据传输。
  29. 根据权利要求24至28任一所述的终端，其特征在于，所述收发单元，还用于在接收网络侧设备发送的第一侦听指示信息之前，向所述网络侧设备发送所述终端的侦听能力信息，所述侦听能力信息包括可侦听的信道区间以及单次侦听所需时长中的至少一种。
  30. 根据权利要求24至28任一所述的终端，其特征在于，
    所述信道侦听结果是所述终端在所述第一侦听资源上进行信道侦听获得的侦听结果；
    或者，
    所述信道侦听结果是所述终端在所述第一侦听资源对应的时域区间之前，对所述第一侦听资源所占用的频域资源进行信道侦听获得的侦听结果。
  31. 一种网络侧设备，其特征在于，所述网络侧设备包括：处理器和通信接口；
    所述通信接口被配置为由所述处理器控制；所述网络侧设备中的处理器用于实现上述权利要求1至14任一所述的信道侦听方法。
  32. 一种终端，其特征在于，所述终端包括：处理器和通信接口；
    所述通信接口被配置为由所述处理器控制；所述终端中的处理器用于实现上述权利要求9至15任一所述的信道侦听方法。
  33. 一种计算机可读存储介质，所述计算机可读存储介质存储有可执行程序，所述可执行程序由处理器执行，以实现上述权利要求1至14任一所述的信道侦听方法。
  34. 一种计算机可读存储介质，所述计算机可读存储介质存储有可执行程序，所述可执行程序由处理器执行，以实现上述权利要求9至15任一所述的信道侦听方法。
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