A method and device used in a node for wireless communication

Abstract

The present application discloses a method and device in a node used for wireless communication. A first node receives a first signaling; performs M monitoring on a first frequency band, the M monitorings correspond to M channels one by one, and the M monitorings indicate whether the corresponding channels are busy; when the M monitorings all indicate that the corresponding channels are busy, abandon sending wireless signals on the M channels, start a first timer, and update the first counter by 1; when the first monitoring indicates that the first channel is idle, send a first signal on the first channel and the first counter remains unchanged. The first signaling is used to indicate the time-frequency resources occupied by the M channels, M is a positive integer greater than 1; the first monitoring is one of the M monitorings, and the first channel is a channel in the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used to determine the first bit block.

Description

Technical Field

[0001] The present application relates to a transmission method and device in a wireless communication system, and in particular to a transmission method and device for wireless signals in a wireless communication system supporting a cellular network. Background Art

[0002] 3GPP (3rd Generation Partner Project) LTE (Long-term Evolution) and 5G NR (New Radio Access Technology) have introduced unlicensed spectrum communications in cellular systems. To ensure compatibility with other access technologies on unlicensed spectrum, the LBT (Listen Before Talk) technology under omnidirectional antennas is adopted in channel monitoring to avoid interference caused by multiple transmitters occupying the same frequency resources at the same time.

[0003] At the 3GPP RAN#86 plenary meeting, NR Release 17 SI (Study Item) for 52.6GHz-71GHz was passed, and the channel access mechanism was a research focus. Summary of the invention

[0004] The inventors have found through research that, when beamforming or multiple repeated transmissions are considered, the failure detection and recovery mechanism of channel monitoring is a key issue.

[0005] In response to the above problems, the present application discloses a solution. In the description of the above problems, the uplink is used as an example; the present application is also applicable to downlink transmission scenarios and companion link (Sidelink) transmission scenarios, achieving similar technical effects in the companion link. In addition, the use of a unified solution for different scenarios (including but not limited to uplink, downlink, and companion link) also helps to reduce hardware complexity and cost. It should be noted that, in the absence of conflict, the embodiments of the user equipment of the present application and the features in the embodiments can be applied to the base station, and vice versa. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

[0006] As an embodiment, the interpretation of the terminology in this application refers to the definition of the TS36 series of specification protocols of 3GPP.

[0007] As an example, the interpretation of the terms in the present application refers to the definitions of the TS38 series of specification protocols of 3GPP.

[0008] As an example, the interpretation of the terms in the present application refers to the definitions of the TS37 series of specification protocols of 3GPP.

[0009] As an embodiment, the interpretation of the terms in this application refers to the definition of the standard protocol of IEEE (Institute of Electrical and Electronics Engineers).

[0010] The present application discloses a method in a first node used for wireless communication, characterized by comprising:

[0011] Receive a first signaling; perform M monitoring on a first frequency band, the M monitorings correspond one-to-one to M channels respectively, and the M monitorings respectively indicate whether the corresponding channels are busy;

[0012] When the M monitorings all indicate that the corresponding channels are busy, giving up sending wireless signals on the M channels, starting a first timer and updating a first counter by 1; when the first monitoring indicates that the first channel is idle, sending a first signal on the first channel and keeping the first counter unchanged; when the first timer expires, resetting the first counter to an initial value;

[0013] Among them, the first signaling is used to indicate the time-frequency resources occupied by the M channels, the M channels all belong to the first frequency band in the frequency domain, and M is a positive integer greater than 1; the first monitoring is one of the M monitorings, and the first channel is a channel among the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used to determine the first bit block.

[0014] As an embodiment, the problem to be solved by the present application is: considering the failure monitoring and recovery mechanism of channel monitoring under beamforming.

[0015] As an embodiment, the problem to be solved by the present application is: considering the failure monitoring and recovery mechanism of channel monitoring under multiple TRPs (Transmit-Receive Points) / antenna panels.

[0016] As an embodiment, the problem to be solved by the present application is: considering the failure monitoring and recovery mechanism of channel monitoring under multiple repeated transmissions.

[0017] As an embodiment, the essence of the above method is that the M channels correspond to channel monitoring using M beams respectively, and the first counter is used for failure monitoring of channel monitoring; when all the M channels are busy, the first counter is updated by 1. The advantage of adopting the above method is that, considering beamforming, an effective channel monitoring failure monitoring and recovery mechanism is established, thereby improving the transmission reliability in the unlicensed spectrum.

[0018] As an embodiment, the essence of the above method is that M channels correspond to M TRPs / antenna panels respectively, and the first counter is used for channel monitoring failure monitoring; when all M channels are busy, the first counter is updated by 1. The advantage of adopting the above method is that, considering the TRP / antenna panel, an effective channel monitoring failure monitoring and recovery mechanism is established, thereby improving the transmission reliability in the unlicensed spectrum.

[0019] As an embodiment, the essence of the above method is that the M channels correspond to M repeated transmissions respectively, and the first counter is used for channel monitoring failure monitoring; when all the M channels are busy, the first counter is updated by 1. The advantage of adopting the above method is that, considering multiple repeated transmissions, an effective channel monitoring failure monitoring and recovery mechanism is established, thereby improving the transmission reliability in the unlicensed spectrum.

[0020] According to one aspect of the present application, the above method is characterized in that it includes:

[0021] When M1 monitorings all indicate that the corresponding channels are idle, sending a wireless signal on each channel other than the first channel among the M1 channels;

[0022] Among them, the M1 monitors correspond to the M1 channels respectively, the first monitor is one of the M1 monitors, any monitor in the M1 monitors is one of the M monitors, any channel in the M1 channels is one of the M channels, and M1 is a positive integer greater than 1 and not greater than M.

[0023] According to one aspect of the present application, the above method is characterized in that the first signaling is used to indicate the time-frequency resources occupied by N channels, the N channels include the M channels, and N is a positive integer greater than M; any reference signal resource among the T reference signal resources is used to determine the multi-antenna related parameters of at least one channel among the N channels, and the multi-antenna related parameters of any channel among the N channels are determined by one of the T reference signal resources, and T is a positive integer greater than 1; which reference signal resource among the T reference signal resources is used to determine the M channels from the N channels by which the multi-antenna related parameters of the N channels are respectively determined.

[0024] According to one aspect of the present application, the above method is characterized in that the first signaling is used to indicate the time-frequency resources occupied by N channels, the N channels include the M channels, and N is a positive integer greater than the M; the relationship between the bit blocks respectively allocated to the N channels is used to determine the M channels from the N channels.

[0025] According to one aspect of the present application, the above method is characterized in that the first signaling is used to indicate the time-frequency resources occupied by N channels, the N channels include the M channels, and N is a positive integer greater than the M; the relationship between the time-frequency resources respectively occupied by the N channels is used to determine the M channels from the N channels.

[0026] According to one aspect of the present application, the above method is characterized in that it includes:

[0027] The first frequency band is monitored for first-type signaling; wherein the first signaling is one of the first-type signalings; and the monitoring is performed each time the first-type signaling is detected.

[0028] According to one aspect of the present application, the above method is characterized in that it includes:

[0029] When the first counter reaches or exceeds a target threshold, a second signal is sent.

[0030] The present application discloses a method used in a second node of wireless communication, characterized by comprising:

[0031] Sending a first signaling;

[0032] Monitoring whether a wireless signal is sent on M channels; when a first monitoring indicates that a first channel is idle, receiving a first signal on the first channel;

[0033] Among them, the first signaling is used to indicate the time-frequency resources occupied by the M channels, the M channels all belong to the first frequency band in the frequency domain, and M is a positive integer greater than 1; the target receiver of the first signaling performs M monitoring on the first frequency band, the M monitorings correspond one-to-one to the M channels, and the M monitorings respectively indicate whether the corresponding channels are busy; when the M monitorings all indicate that the corresponding channels are busy, the target receiver of the first signaling abandons sending wireless signals on the M channels and starts a first timer and updates the first counter by 1; the first monitoring is one of the M monitorings, and the first channel is a channel among the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used to determine the first bit block.

[0034] According to one aspect of the present application, the above method is characterized in that it includes:

[0035] receiving a wireless signal on each of the M1 channels other than the first channel;

[0036] Among them, M1 monitorings all indicate that the corresponding channels are idle, the M1 monitorings correspond to the M1 channels respectively, the first monitoring is one of the M1 monitorings, any monitoring in the M1 monitorings is one of the M monitorings, any channel in the M1 channels is one of the M channels, and M1 is a positive integer greater than 1 and not greater than M.

[0037] According to one aspect of the present application, the above method is characterized in that the first signaling is used to indicate the time-frequency resources occupied by N channels, the N channels include the M channels, and N is a positive integer greater than M; any reference signal resource among the T reference signal resources is used to determine the multi-antenna related parameters of at least one channel among the N channels, and the multi-antenna related parameters of any channel among the N channels are determined by one of the T reference signal resources, and T is a positive integer greater than 1; which reference signal resource among the T reference signal resources is used to determine the M channels from the N channels by which the multi-antenna related parameters of the N channels are respectively determined.

[0038] According to one aspect of the present application, the above method is characterized in that the first signaling is used to indicate the time-frequency resources occupied by N channels, the N channels include the M channels, and N is a positive integer greater than the M; the relationship between the bit blocks respectively allocated to the N channels is used to determine the M channels from the N channels.

[0039] According to one aspect of the present application, the above method is characterized in that the first signaling is used to indicate the time-frequency resources occupied by N channels, the N channels include the M channels, and N is a positive integer greater than the M; the relationship between the time-frequency resources respectively occupied by the N channels is used to determine the M channels from the N channels.

[0040] According to one aspect of the present application, the above method is characterized in that the first signaling is a first type of signaling; and the monitoring is performed each time the target receiver of the first signaling detects the first type of signaling.

[0041] According to one aspect of the present application, the above method is characterized in that it includes:

[0042] receiving a second signal;

[0043] Wherein, the first counter reaches or exceeds a target threshold.

[0044] The present application discloses a first node device used for wireless communication, characterized in that it includes:

[0045] A first receiver receives a first signaling; performs M monitoring on a first frequency band, wherein the M monitorings correspond to M channels one by one, and the M monitorings respectively indicate whether the corresponding channels are busy;

[0046] The first transmitter, when the M monitorings all indicate that the corresponding channels are busy, abandons sending wireless signals on the M channels, starts a first timer, and updates a first counter by 1; when the first monitoring indicates that the first channel is idle, sends a first signal on the first channel and the first counter remains unchanged; when the first timer expires, resets the first counter to an initial value;

[0047] Among them, the first signaling is used to indicate the time-frequency resources occupied by the M channels, the M channels all belong to the first frequency band in the frequency domain, and M is a positive integer greater than 1; the first monitoring is one of the M monitorings, and the first channel is a channel among the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used to determine the first bit block.

[0048] The present application discloses a second node device used for wireless communication, characterized in that it includes:

[0049] A second transmitter sends a first signaling;

[0050] A second receiver monitors whether a wireless signal is sent on the M channels; when the first monitoring indicates that the first channel is idle, a first signal is received on the first channel;

[0051] Among them, the first signaling is used to indicate the time-frequency resources occupied by the M channels, the M channels all belong to the first frequency band in the frequency domain, and M is a positive integer greater than 1; the target receiver of the first signaling performs M monitoring on the first frequency band, the M monitorings correspond one-to-one to the M channels, and the M monitorings respectively indicate whether the corresponding channels are busy; when the M monitorings all indicate that the corresponding channels are busy, the target receiver of the first signaling abandons sending wireless signals on the M channels and starts a first timer and updates the first counter by 1; the first monitoring is one of the M monitorings, and the first channel is a channel among the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used to determine the first bit block.

[0052] As an embodiment, the method in this application has the following advantages:

[0053] -Through the method proposed in this application, an effective channel monitoring failure monitoring and recovery mechanism is established under the consideration of beamforming, thereby improving the transmission reliability in unlicensed spectrum;

[0054] - Through the method proposed in this application, an effective LBT failure monitoring and recovery mechanism is established for LBT under multiple TRPs or multiple antenna panels, thereby improving the transmission reliability under unlicensed spectrum;

[0055] -Through the method proposed in this application, an effective LBT failure monitoring and recovery mechanism is established for LBT under multiple repeated transmissions, thereby improving the transmission reliability under unlicensed spectrum. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0057] Figure 1 A flowchart of first signaling, M monitoring, a first counter and a first timer according to an embodiment of the present application is shown;

[0058] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0059] Figure 3 A schematic diagram showing a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application is shown;

[0060] Figure 4 A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application is shown;

[0061] Figure 5 A wireless signal transmission flow chart according to an embodiment of the present application is shown;

[0062] Figure 6 A schematic diagram showing determination of M channels according to an embodiment of the present application is shown;

[0063] Figure 7 A schematic diagram showing determination of M channels according to an embodiment of the present application is shown;

[0064] Figure 8 A schematic diagram showing determination of M channels according to an embodiment of the present application is shown;

[0065] Fig. 9 A schematic diagram showing whether a channel corresponding to a given monitoring indication is busy according to another embodiment of the present application;

[0066] Fig.10 A schematic diagram showing whether a channel corresponding to a given monitoring indication is busy according to an embodiment of the present application;

[0067] Fig.11 A structural block diagram of a processing device in a first node device according to an embodiment of the present application is shown;

[0068] Fig.12 A structural block diagram of a processing device in a second node device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0069] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

[0070] Example 1

[0071] Embodiment 1 illustrates a flowchart of first signaling, M monitoring, a first counter and a first timer according to an embodiment of the present application, as shown in the attached Figure 1 As shown in the attached Figure 1 In the figure, each box represents a step. It should be emphasized that the order of the boxes in the figure does not represent the temporal relationship between the steps represented.

[0072] In embodiment 1, the first node in the present application receives a first signaling in step 101; performs M monitoring on a first frequency band in step 102; in step 103, when the M monitorings all indicate that the corresponding channels are busy, abandon sending wireless signals on the M channels, start a first timer, and update the first counter by 1; in step 104, when the first monitoring indicates that the first channel is idle, send a first signal on the first channel and the first counter remains unchanged; in step 105, when the first timer expires, reset the first counter to an initial value; wherein the M monitorings correspond one-to-one to the M channels, respectively, and the M monitorings respectively indicate whether the corresponding channels are busy; the first signaling is used to indicate the time-frequency resources occupied by the M channels, the M channels all belong to the first frequency band in the frequency domain, and M is a positive integer greater than 1; the first monitoring is one of the M monitorings, and the first channel is a channel among the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used to determine the first bit block.

[0073] As an embodiment, the first signaling is semi-statically configured.

[0074] As an embodiment, the first signaling is dynamically configured.

[0075] As an embodiment, the first signaling is higher layer signaling.

[0076] As an embodiment, the first signaling is RRC signaling.

[0077] As an embodiment, the first signaling is MAC CE signaling.

[0078] As an embodiment, the first signaling is physical layer signaling.

[0079] As an embodiment, the first signaling is transmitted on a downlink.

[0080] As an embodiment, the first signaling is transmitted on a secondary link.

[0081] As an embodiment, the first signaling is DCI (Downlink Control Information) signaling.

[0082] As an embodiment, the first signaling is transmitted on PDCCH (Physical Downlink Control CHannel).

[0083] As an embodiment, the first signaling is SCI (Sidelink Control Information) signaling.

[0084] As an embodiment, the time-frequency resources occupied by any one of the M channels include a positive integer number of REs (Resource Element).

[0085] As an embodiment, the frequency domain resources occupied by any one of the M channels include a positive integer number of subcarriers.

[0086] As an embodiment, the frequency domain resources occupied by any one of the M channels include a positive integer number of PRBs (Physical Resource Blocks).

[0087] As an embodiment, the frequency domain resources occupied by any channel among the M channels include a positive integer number of RBs (Resource Blocks).

[0088] As an embodiment, the time domain resources occupied by any channel among the M channels include a positive integer number of single-carrier symbols.

[0089] As an embodiment, the time domain resources occupied by any channel among the M channels include a positive integer number of multi-carrier symbols.

[0090] As an embodiment, one RE occupies one multi-carrier symbol in the time domain and one subcarrier in the frequency domain.

[0091] As an embodiment, the multi-carrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0092] As an embodiment, the multi-carrier symbol is an SC-FDMA (Single Carrier-Frequency Division Multiple Access) symbol.

[0093] As an embodiment, the multi-carrier symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

[0094] As an embodiment, the first signaling explicitly indicates the time-frequency resources occupied by the M channels.

[0095] As an embodiment, the first signaling implicitly indicates the time-frequency resources occupied by the M channels.

[0096] As an embodiment, the first signaling indicates the time domain resources occupied by the M channels and the frequency domain resources occupied by the M channels.

[0097] As an embodiment, the first signaling indicates the index of the time-frequency resources occupied by the M channels.

[0098] As an embodiment, the first signaling includes a first field, and the first field in the first signaling is used to indicate the time domain resources occupied by the M channels, and the first field includes a positive integer number of bits.

[0099] As an embodiment, the first signaling includes a first field, and the first field in the first signaling is used to indicate the time domain resources occupied by a reference channel, the reference channel is one of the M channels, and the first field includes a positive integer number of bits.

[0100] As an embodiment, the first signaling includes a second field, and the second field in the first signaling is used to indicate the frequency domain resources occupied by the M channels, and the second field includes a positive integer number of bits.

[0101] As an embodiment, the first signaling includes a second field, and the second field in the first signaling is used to indicate the frequency domain resources occupied by a reference channel, the reference channel is one of the M channels, and the second field includes a positive integer number of bits.

[0102] As an embodiment, the first signaling includes a third field, the third field in the first signaling indicates the index of the time-frequency resources occupied by the M channels, and the third field includes a positive integer number of bits.

[0103] As an embodiment, the first signaling includes a third field, the third field in the first signaling indicates the index of the time-frequency resources occupied by the reference channel, the reference channel is one of the M channels, and the third field includes a positive integer number of bits.

[0104] As an embodiment, the first domain is Time domain resource assignment.

[0105] As an embodiment, the second domain is a Frequency domain resource assignment.

[0106] As an embodiment, the third field is a PUCCH resource indicator.

[0107] As an embodiment, the specific definition of the Time domain resource assignment refers to Chapter 7.3 of 3GPP TS 38.212.

[0108] As an embodiment, the specific definition of the Frequency domain resource assignment refers to Chapter 7.3 in 3GPP TS38.212.

[0109] As an embodiment, the specific definition of the PUCCH resource indicator refers to Section 7.3 of 3GPP TS 38.212.

[0110] As an embodiment, the first signaling is used to indicate the time-frequency resources occupied by a reference channel, and the reference channel is one of the M channels.

[0111] As a sub-embodiment of the above embodiment, the time-frequency resources occupied by the reference channel are used to determine the time-frequency resources occupied by each channel other than the reference channel among the M channels.

[0112] As a sub-embodiment of the above embodiment, the first signaling explicitly indicates the time-frequency resources occupied by the reference channel.

[0113] As a sub-embodiment of the above embodiment, the first signaling implicitly indicates the time-frequency resources occupied by the reference channel.

[0114] As a sub-embodiment of the above embodiment, the first signaling indicates the time domain resources occupied by the reference channel and the frequency domain resources occupied by the reference channel.

[0115] As a sub-embodiment of the above embodiment, the reference channel is the earliest channel in the time domain among the M channels.

[0116] As a sub-embodiment of the above embodiment, the M channels correspond to M indexes respectively, the reference channel is a channel among the M channels corresponding to the minimum index among the M indexes, and the M indexes are all non-negative integers.

[0117] As a sub-embodiment of the above embodiment, the M channels correspond to M indexes respectively, the reference channel is a channel among the M channels corresponding to the maximum index among the M indexes, and the M indexes are all non-negative integers.

[0118] As an embodiment, the first frequency band is predefined.

[0119] As an embodiment, the first frequency band is pre-configured.

[0120] As an embodiment, the first frequency band is configurable.

[0121] As an embodiment, the first frequency band includes a positive integer number of subcarriers.

[0122] As an embodiment, the first frequency band includes a carrier.

[0123] As an embodiment, the first frequency band includes a BWP (Bandwidth Part).

[0124] As an embodiment, the first frequency band includes a UL (UpLink) BWP.

[0125] As an embodiment, the first frequency band includes a subband.

[0126] As an embodiment, the first frequency band belongs to an unlicensed spectrum.

[0127] As an embodiment, the first frequency band includes M sub-frequency bands, the M channels belong to the M sub-frequency bands respectively in the frequency domain, and the M monitorings are performed on the M sub-frequency bands respectively.

[0128] As an embodiment, the M monitorings are respectively used to determine whether to perform wireless transmission on the corresponding channel.

[0129] As an embodiment, whether the channel corresponding to the given monitoring indication is busy; if yes, the channel corresponding to the given monitoring indication is busy (Busy); if not, the channel corresponding to the given monitoring indication is idle (Idle).

[0130] As an embodiment, when the channel corresponding to the given monitoring indication is busy (Busy), wireless transmission on the channel corresponding to the given monitoring is abandoned; when the channel corresponding to the given monitoring indication is idle (Idle), wireless transmission is performed on the channel corresponding to the given monitoring.

[0131] As an embodiment, any monitoring among the M monitorings includes energy detection.

[0132] As an embodiment, any one of the M monitorings includes power detection.

[0133] As an embodiment, any one of the M monitorings is LBT (Listen Before Talk).

[0134] As an embodiment, any one of the M monitorings is an uplink LBT.

[0135] As an embodiment, any one of the M monitors is one of Type 1LBT and Type 2LBT.

[0136] As an embodiment, any one of the M monitorings is one of Type 1LBT, Type 2A LBT, and Type 2BLBT.

[0137] As an embodiment, any one of the M monitorings is a CCA (Clear Channel Assessment).

[0138] As an embodiment, any one of the M monitorings includes coherent detection of a signature sequence.

[0139] As an embodiment, a given monitoring includes sensing the energy of a wireless signal in a given frequency band and averaging it over time to obtain received energy; when the received energy is less than a first energy threshold, the channel corresponding to the given monitoring indication is idle; otherwise, the channel corresponding to the given monitoring indication is busy.

[0140] As an embodiment, the given monitoring includes sensing the power of the wireless signal in a given frequency band to obtain the received power; when the received power is less than a first power threshold, the channel corresponding to the given monitoring indication is idle; otherwise, the channel corresponding to the given monitoring indication is busy.

[0141] As an embodiment, a given monitoring includes using a characteristic sequence for coherent reception on a given frequency band, and measuring the energy of the signal obtained after the coherent reception; when the energy of the signal obtained after the coherent reception is less than a second energy threshold, the channel corresponding to the given monitoring indication is idle; otherwise, the channel corresponding to the given monitoring indication is busy.

[0142] As an embodiment, a given monitoring includes using a characteristic sequence for coherent reception on a given frequency band, and measuring the energy of the signal obtained after the coherent reception; when the energy of the signal obtained after the coherent reception is less than a second energy threshold, the channel corresponding to the given monitoring indication is busy; otherwise, the channel corresponding to the given monitoring indication is idle.

[0143] As an embodiment, the first monitoring includes CRC (Cyclic Redundancy Check) detection.

[0144] As an embodiment, the given monitoring includes receiving a wireless signal on a given frequency band and performing a decoding operation; when the decoding is determined to be correct according to the CRC bit, the channel corresponding to the given monitoring indication is busy; otherwise, the channel corresponding to the given monitoring indication is idle.

[0145] As an embodiment, the given monitoring includes receiving a wireless signal on a given frequency band and performing a decoding operation; when the decoding is determined to be correct according to the CRC bit, the channel corresponding to the given monitoring indication is idle; otherwise, the channel corresponding to the given monitoring indication is busy.

[0146] As an embodiment, the given monitoring is any one of the M monitorings.

[0147] As an embodiment, the given frequency band is the first frequency band.

[0148] As an embodiment, the given frequency band is a sub-frequency band corresponding to the given monitoring among the M sub-frequency bands.

[0149] As an embodiment, the channel corresponding to the given monitoring belongs to the given frequency band in the frequency domain.

[0150] As an embodiment, the end time of the given monitoring is no later than the start time of the channel corresponding to the given monitoring.

[0151] As an embodiment, the time domain resources occupied by any two channels among the M channels are orthogonal.

[0152] As an embodiment, time domain resources occupied by any two channels among the M channels are overlapping, and frequency domain resources occupied by any two channels among the M channels are orthogonal.

[0153] As an embodiment, the time domain resources occupied by the M channels are the same, and the frequency domain resources occupied by any two channels among the M channels are orthogonal.

[0154] As an embodiment, the time-frequency resources occupied by any two channels among the M channels are overlapping.

[0155] As an embodiment, the time-frequency resources occupied by the M channels are the same.

[0156] As an embodiment, the frequency domain resources occupied by the M channels are the same.

[0157] As an embodiment, the frequency domain resources occupied by any two channels among the M channels are orthogonal.

[0158] As an embodiment, frequency domain resources occupied by two channels among the M channels are orthogonal.

[0159] As an embodiment, the M channels appear periodically in the time domain.

[0160] As an embodiment, the M channels respectively belong to M continuous time units in the time domain.

[0161] As an embodiment, the M channels respectively belong to M periodically occurring time units in the time domain.

[0162] As an embodiment, the M channels belong to the same time unit in the time domain.

[0163] As an embodiment, the one time unit includes one time slot (Slot).

[0164] As an embodiment, the one time unit includes one sub-slot.

[0165] As an embodiment, the one time unit includes one subframe.

[0166] As an embodiment, the one time unit includes a positive integer number of consecutive multi-carrier symbols.

[0167] As an embodiment, the M channels are continuous in the time domain.

[0168] As an embodiment, the M channels are composed of continuous uplink multi-carrier symbols.

[0169] As an embodiment, any two adjacent channels in the time domain among the M channels do not include an uplink multi-carrier symbol.

[0170] As an embodiment, the time interval (Gap) between any two adjacent channels in the time domain among the M channels is predefined.

[0171] As an embodiment, the time interval (Gap) between any two adjacent channels in the time domain among the M channels is configurable.

[0172] As an embodiment, the time interval (Gap) between any two adjacent channels in the time domain among the M channels is configured by higher layer signaling.

[0173] As an embodiment, the time interval (Gap) between any two adjacent channels in the time domain among the M channels is indicated by the first signaling.

[0174] As an embodiment, the time interval between two channels refers to the value obtained by subtracting the first multi-carrier symbol index from the second multi-carrier symbol index, wherein the second multi-carrier symbol index is the index of the starting multi-carrier symbol of the later one of the two channels in the time domain, and the first multi-carrier symbol index is the index of the ending multi-carrier symbol of the earlier one of the two channels in the time domain.

[0175] As an embodiment, the time interval between two channels refers to the value obtained by subtracting the first time unit index from the second time unit index, wherein the second time unit index is the index of the time unit to which the later one of the two channels in the time domain belongs, and the first time unit index is the index of the time unit to which the earlier one of the two channels in the time domain belongs.

[0176] As an embodiment, the first signaling includes M sub-signals, and the M sub-signals are respectively used to indicate the time-frequency resources occupied by the M channels.

[0177] As an embodiment, the multi-antenna related parameters of at least two channels among the M channels are different, any reference signal resource among the T reference signal resources is used to determine the multi-antenna related parameters of at least one channel among the M channels, and the multi-antenna related parameters of any channel among the M channels are determined by one reference signal resource among the T reference signal resources, and T is a positive integer greater than 1.

[0178] As an embodiment, the multi-antenna related parameters of the M channels are the same.

[0179] As an embodiment, multi-antenna related parameters of at least two channels among the M channels are different.

[0180] As an embodiment, the M channels are all allocated to the transmission of the first bit block.

[0181] As an embodiment, the M channels are respectively allocated to the transmission of M bit blocks, the first channel is a channel among the M channels allocated to the first bit block, and the first bit block is one of the M bit blocks.

[0182] As an embodiment, the first bit block is used to generate the first signal.

[0183] As an embodiment, the bits in the first bit block are sequentially subjected to CRC attachment, segmentation, coding block level CRC attachment, channel coding, rate matching, concatenation, scrambling, modulation mapper, layer mapper, transform precoder, precoding, resource element mapper, multi-carrier symbol generation, modulation and upconversion to generate the first signal.

[0184] As an embodiment, the first signal is generated after the bits in the first bit block are sequentially subjected to CRC attachment, segmentation, coding block level CRC attachment, channel coding, rate matching, concatenation, scrambling, modulation mapper, layer mapper, precoding, resource particle mapper, multi-carrier symbol generation, modulation and up-conversion.

[0185] As an embodiment, the first bit block includes a positive integer number of bits.

[0186] As an embodiment, the first bit block includes a positive integer number of TBs (Transport Block).

[0187] As an embodiment, the first bit block includes a TB.

[0188] As an embodiment, the first bit block includes a positive integer number of CBGs (Code Block Group).

[0189] As an embodiment, the first bit block includes a CBG.

[0190] As an embodiment, the first signaling is used to indicate the size of the first bit block.

[0191] As an embodiment, the first signaling implicitly indicates the size of the first bit block.

[0192] As an embodiment, the first signaling indicates the MCS of the first channel and the first signal.

[0193] As an embodiment, the number of REs included in the first channel is used to determine the size of the first bit block.

[0194] As an embodiment, the MCS of the first signal is used to determine the size of the first bit block.

[0195] As an embodiment, the number of REs included in the first channel and the MCS of the first signal are used together to determine the size of the first bit block.

[0196] As an embodiment, the size of the first bit block refers to: the number of bits included in the first bit block.

[0197] As an embodiment, the size of the first bit block refers to: TBS (Transport Block Size).

[0198] As an embodiment, the size of the first bit block refers to: the TBS of the TBs included in the first bit block.

[0199] As an embodiment, the first bit block carries UCI (Uplink control information).

[0200] As an embodiment, the first bit block carries HARQ-ACK (Hybrid Automatic RepeatreQuest-Acknowledgement).

[0201] As an embodiment, the first bit block carries SR (Scheduling Request).

[0202] As an embodiment, the first bit block carries CSI (Channel State Information).

[0203] As an embodiment, the CSI includes one or more of CRI (Channel-state information reference signals Resource Indicator), PMI (Precoding Matrix Indicator), RSRP (Reference Signal Received Power), RSRQ (Reference Signal Received Quality) and CQI (Channel Quality Indicator).

[0204] As an embodiment, M1 monitorings among the M monitorings all indicate that the corresponding channels are idle, the first monitoring is one of the M1 monitorings, and M1 is a positive integer greater than 1 and not greater than the M.

[0205] As an embodiment, M1 channels among the M channels correspond to the M1 monitorings respectively, and the first node sends wireless signals on only the first channel among the M1 channels.

[0206] As an embodiment, M1 channels among the M channels correspond to the M1 monitorings respectively, and the first node sends wireless signals on the M1 channels.

[0207] As an embodiment, when a channel corresponding to at least one monitoring indication among the M monitorings is idle, the first counter remains unchanged.

[0208] As an embodiment, the first node is a UE (User Equipment), and the first channel includes an uplink channel.

[0209] As an embodiment, the first node is a base station, and the first channel includes a downlink channel.

[0210] As an embodiment, the first node is a UE, and the first channel includes a side link channel.

[0211] As an embodiment, the first channel includes PUSCH (Physical Uplink Shared Channel).

[0212] As an embodiment, the first channel includes PUCCH (Physical Uplink Control Channel).

[0213] As an embodiment, the first channel includes PSSCH (Physical Sidelink Shared Channel).

[0214] As an embodiment, the first channel includes PSCCH (Physical Sidelink Control Channel).

[0215] As an embodiment, the first channel includes PSFCH (Physical Sidelink Feedback Channel).

[0216] As an embodiment, the first channel is reserved for downlink reference signal resources.

[0217] As an embodiment, the first channel is reserved for uplink reference signal resources.

[0218] As an embodiment, the first channel is reserved for secondary link reference signal resources.

[0219] As an embodiment, the phrase of giving up sending wireless signals on the M channels includes: maintaining zero transmission power on all the M channels.

[0220] As an embodiment, the phrase of giving up sending wireless signals on the M channels includes: performing channel monitoring on the first frequency band in the time domain resources occupied by the M channels.

[0221] As an embodiment, the phrase of giving up sending wireless signals on the M channels includes: performing LBT on the first frequency band in the time domain resources occupied by the M channels.

[0222] As an embodiment, the phrase abandoning transmitting wireless signals on the M channels includes: modulation symbols generated for the wireless transmission on the M channels are discarded.

[0223] As an embodiment, the phrase giving up sending wireless signals on the M channels includes: modulation symbols generated for the wireless transmission on the M channels are postponed.

[0224] As an embodiment, the phrase of giving up sending wireless signals on the M channels includes: the modulation symbols generated for the wireless transmission on the M channels are sent on time-frequency resources orthogonal to the time-frequency resources occupied by the M channels.

[0225] As an embodiment, when the first timer reaches an expiration value of the first timer, the first timer expires (Expire).

[0226] As an embodiment, the expiration value of the first timer is a positive integer.

[0227] As an embodiment, the expiration value of the first timer is configurable.

[0228] As an embodiment, the expiration value of the first timer is predefined.

[0229] As an embodiment, the expiration value of the first timer is indicated by lbt-FailureDetectionTimer.

[0230] As an embodiment, the first timer is beamFailureDetectionTimer.

[0231] As an embodiment, the phrase starting a first timer includes setting the first timer to 0 and increasing the first timer by 1 for each first type of time interval.

[0232] As a sub-embodiment of the above embodiment, the above operation is performed regardless of whether the first timer is running.

[0233] As a sub-embodiment of the above embodiment, when the first timer reaches an expiration value of the first timer, the first timer expires.

[0234] As an embodiment, the phrase starting a first timer includes setting the first timer to an expiration value, and reducing the first timer by 1 for each first type time interval.

[0235] As a sub-embodiment of the above embodiment, the above operation is performed regardless of whether the first timer is running.

[0236] As a sub-embodiment of the above embodiment, when the first timer reaches 0, the first timer expires.

[0237] As an embodiment, the first type of time interval is a subframe.

[0238] As an embodiment, the first type of time interval is a time slot.

[0239] As an embodiment, the first type of time interval is a sub-slot.

[0240] As an embodiment, the first type of time interval includes a positive integer number of multi-carrier symbols.

[0241] As an embodiment, the first type of time interval is a TTI (Transport Time Interval).

[0242] As an embodiment, on the first frequency band, when there are no time-frequency resources reserved for uplink transmission in a subframe, the subframe does not belong to the first type of time interval.

[0243] As an embodiment, on the first frequency band, when the first node is configured as DTX (Discontinuous Transmission) in a subframe, the subframe does not belong to the first type of time interval.

[0244] As an embodiment, the first counter is BFI_COUNTER.

[0245] As an embodiment, the initial value of the first counter is 0.

[0246] As an embodiment, the initial value of the first counter is a positive integer.

[0247] As an embodiment, the target threshold of the first counter is a positive integer.

[0248] As an embodiment, the target threshold of the first counter is 0.

[0249] As an embodiment, the target threshold of the first counter is configurable.

[0250] As an embodiment, the target threshold of the first counter is predefined.

[0251] As an embodiment, the target threshold of the first counter is indicated by lbt-FailureInstanceMaxCount.

[0252] As an embodiment, the phrase updating the first counter by 1 includes: adding 1 to the first counter; the initial value of the first counter is 0, and the target threshold of the first counter is a positive integer greater than the initial value of the first counter.

[0253] As a sub-embodiment of the above embodiment, the target threshold of the first counter is equal to 1.

[0254] As a sub-embodiment of the above embodiment, the target threshold of the first counter is a positive integer greater than 1.

[0255] As an embodiment, the phrase updating the first counter by 1 includes: subtracting 1 from the first counter; the initial value of the first counter is a positive integer, and the target threshold of the first counter is an integer less than the initial value of the first counter.

[0256] As a sub-embodiment of the above embodiment, the target threshold of the first counter is a non-negative integer smaller than the initial value of the first counter.

[0257] As a sub-embodiment of the above embodiment, the target threshold of the first counter is 0.

[0258] As a sub-embodiment of the above embodiment, the target threshold of the first counter is 1.

[0259] As an embodiment, the first receiver receives a first information block; wherein the first information block indicates at least one of an expiration value of the first timer and a target threshold of the first counter.

[0260] As a sub-embodiment of the above embodiment, the first information block includes higher layer signaling.

[0261] As a sub-embodiment of the above embodiment, the first information block includes RRC signaling.

[0262] As a sub-embodiment of the above embodiment, the first information block includes MAC CE signaling.

[0263] As a sub-embodiment of the above embodiment, the first information block includes an IE (Information Element) in RRC signaling.

[0264] As a sub-embodiment of the above embodiment, the first information block includes multiple IEs in RRC signaling.

[0265] As a sub-embodiment of the above embodiment, the first information block includes the LBT-FailureRecoveryConfig IE in the RRC signaling.

[0266] As a sub-embodiment of the above embodiment, the first information block includes LBT-FailureRecoveryConfig-r16 IE in RRC signaling.

[0267] Example 2

[0268] Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in the attached Figure 2 shown.

[0269] Attached Figure 2A diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) systems is illustrated. The 5G NR or LTE network architecture 200 may be referred to as an EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, EPC (Evolved Packet Core) / 5G-CN (5G-Core Network) 210, HSS (Home Subscriber Server) 220, and Internet services 230. The EPS may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, but those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services or other cellular networks. NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol terminations towards UE 201. gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (transmit receive node), or some other suitable term. gNB 203 provides an access point to EPC / 5G-CN 210 for UE 201. Examples of UE 201 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, cars, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. gNB 203 is connected to EPC / 5G-CN 210 via an S1 / NG interface.EPC / 5G-CN 210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / UPF (User Plane Function) 211, other MME / AMF / UPF214, S-GW (Service Gateway) 212 and P-GW (Packet Data Network Gateway) 213. MME / AMF / UPF211 is a control node that handles signaling between UE201 and EPC / 5G-CN 210. Generally, MME / AMF / UPF211 provides bearer and connection management. All user IP (Internet Protocal) packets are transmitted through S-GW212, which itself is connected to P-GW213. P-GW213 provides UE IP address allocation and other functions. P-GW213 is connected to Internet service 230. The Internet service 230 includes operator-compatible Internet protocol services, which may specifically include the Internet, intranet, IMS (IP Multimedia Subsystem) and packet-switched streaming services.

[0270] As an embodiment, the UE201 corresponds to the first node in the present application.

[0271] As an embodiment, the gNB203 corresponds to the first node in this application.

[0272] As an embodiment, the UE241 corresponds to the second node in the present application.

[0273] As an embodiment, the gNB203 corresponds to the second node in this application.

[0274] Example 3

[0275] Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in the attached Figure 3 shown. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture of the control plane 300 for a first communication node device (UE, gNB or RSU in V2X) and a second communication node device (gNB, UE or RSU in V2X), or between two UEs is shown with three layers: Layer 1, Layer 2 and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to as PHY301 in this article. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device and the two UEs through PHY301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides support for inter-zone mobility of the first communication node device between the second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layer using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The radio protocol architecture used for the first communication node device and the second communication node device in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS flows and data radio bearers (DRBs) to support the diversity of services. Although not shown in the figure, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., an IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

[0276] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0277] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0278] As an embodiment, the first signaling in the present application is generated in the RRC sublayer 306.

[0279] As an embodiment, the first signaling in the present application is generated in the MAC sublayer 302.

[0280] As an embodiment, the first signaling in the present application is generated in the MAC sublayer 352.

[0281] As an embodiment, the first signaling in the present application is generated in the PHY301.

[0282] As an embodiment, the M monitorings in the present application are performed on the PHY351.

[0283] As an embodiment, the M monitorings in the present application are performed on the PHY 301 .

[0284] As an embodiment, the first timer in the present application is maintained in the MAC sublayer 302.

[0285] As an embodiment, the first timer in the present application is maintained in the MAC sublayer 352.

[0286] As an embodiment, the first counter in the present application is maintained in the MAC sublayer 302.

[0287] As an embodiment, the first counter in the present application is maintained in the MAC sublayer 352.

[0288] As an embodiment, the first signal in the present application is generated by the PHY351.

[0289] As an embodiment, the first signal in the present application is generated by the PHY301.

[0290] As an embodiment, the second signal in the present application is generated in the MAC sublayer 302.

[0291] As an embodiment, the second signal in the present application is generated in the MAC sublayer 352.

[0292] As an embodiment, the second signal in the present application is generated by the PHY301.

[0293] As an embodiment, the second signal in the present application is generated by the PHY351.

[0294] Example 4

[0295] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in the attached figure. Figure 4 shown. Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0296] The first communication device 410 includes a controller / processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 and an antenna 420 .

[0297] The second communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0298] In transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of the L2 layer. In transmission from the first communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding / beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0299] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiving processor 458 performs a receiving analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding / beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, wherein the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any spatial stream destined for the second communication device 450. The symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program codes and data. The memory 460 may be referred to as a computer-readable medium. In the transmission from the first communication device 410 to the second communication device 450, the controller / processor 459 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

[0300] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission function at the first communication device 410 described in the transmission from the first communication device 410 to the second communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, and implements L2 layer functions for user plane and control plane. The controller / processor 459 is also responsible for the retransmission of lost packets and signaling to the first communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

[0301] In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the reception function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 472 and the reception processor 470. The reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of the L1 layer. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 can be associated with a memory 476 storing program codes and data. The memory 476 can be referred to as a computer-readable medium. In the transmission from the second communication device 450 to the first communication device 410, the controller / processor 475 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0302] As an embodiment, the first node in the present application includes the second communication device 450.

[0303] As an embodiment, the first node in the present application includes the first communication device 410.

[0304] As an embodiment, the second node in the present application includes the first communication device 410.

[0305] As an embodiment, the second node in the present application includes the second communication device 450.

[0306] As an embodiment, the first node in the present application is a user equipment, and the second node is a base station device.

[0307] As an embodiment, the first node in the present application is a user equipment, and the second node in the present application is a user equipment.

[0308] As an embodiment, the first node in the present application is a user equipment, and the second node is a relay node.

[0309] As an embodiment, the first node in the present application is a relay node, and the second node is a user equipment.

[0310] As an embodiment, the first node in the present application is a relay node, and the second node is a base station device.

[0311] As an embodiment, the first node in the present application is a base station device, and the second node is a base station device.

[0312] As an embodiment, the first node in the present application is a base station device, and the second node is a user equipment.

[0313] As an embodiment, the first node in the present application is a base station device, and the second node is a relay device.

[0314] As an embodiment, the second communication device 450 includes: at least one controller / processor; the at least one controller / processor is responsible for HARQ operation.

[0315] As an embodiment, the first communication device 410 includes: at least one controller / processor; the at least one controller / processor is responsible for HARQ operation.

[0316] As an embodiment, the first communication device 410 includes: at least one controller / processor; the at least one controller / processor is responsible for error detection using a positive acknowledgement (ACK) and / or negative acknowledgement (NACK) protocol to support HARQ operations.

[0317] As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 450 device at least: receives a first signaling; performs M monitoring on a first frequency band, the M monitorings correspond to M channels one by one, and the M monitorings indicate whether the corresponding channels are busy; when the M monitorings all indicate that the corresponding channels are busy, abandons sending wireless signals on the M channels and starts a first timer and updates the first counter by 1; when the first monitoring indicates that the first channel is idle, sends a first signal on the first channel and the first counter remains unchanged; when the first timer expires, resets the first counter to an initial value; wherein the first signaling is used to indicate the time-frequency resources occupied by the M channels, the M channels all belong to the first frequency band in the frequency domain, and M is a positive integer greater than 1; the first monitoring is one of the M monitorings, and the first channel is a channel in the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used to determine the first bit block.

[0318] As a sub-embodiment of the above embodiment, the second communication device 450 corresponds to the first node in this application.

[0319] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: receiving a first signaling; performing M monitoring on a first frequency band, the M monitorings corresponding one-to-one to M channels respectively, and the M monitorings respectively indicating whether the corresponding channels are busy; when the M monitorings all indicate that the corresponding channels are busy, giving up sending wireless signals on the M channels and starting a first timer and updating the first counter by 1; when the first monitoring indicates that the first channel is idle, sending a first signal on the first channel and the first counter remains unchanged; when the first timer expires, resetting the first counter to an initial value; wherein the first signaling is used to indicate the time-frequency resources occupied by the M channels, the M channels all belong to the first frequency band in the frequency domain, and M is a positive integer greater than 1; the first monitoring is one of the M monitorings, and the first channel is a channel among the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used to determine the first bit block.

[0320] As a sub-embodiment of the above embodiment, the second communication device 450 corresponds to the first node in this application.

[0321] As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, wherein the at least one memory includes computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The first communication device 410 device at least: sends a first signaling; monitors whether a wireless signal is sent on M channels; when a first monitoring indicates that a first channel is idle, receives a first signal on the first channel; wherein the first signaling is used to indicate the time-frequency resources occupied by the M channels, the M channels all belong to a first frequency band in the frequency domain, and M is a positive integer greater than 1; the target receiver of the first signaling performs M monitoring on the first frequency band, the M monitorings correspond one-to-one to the M channels, and the M monitorings respectively indicate whether the corresponding channels are busy; when the M monitorings all indicate that the corresponding channels are busy, the target receiver of the first signaling abandons sending wireless signals on the M channels and starts a first timer and updates the first counter by 1; the first monitoring is one of the M monitorings, and the first channel is a channel among the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used to determine the first bit block.

[0322] As a sub-embodiment of the above embodiment, the first communication device 410 corresponds to the second node in this application.

[0323] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: sending a first signaling; monitoring whether a wireless signal is sent on M channels; when a first monitoring indicates that the first channel is idle, receiving a first signal on the first channel; wherein the first signaling is used to indicate the time-frequency resources occupied by the M channels, the M channels all belong to a first frequency band in the frequency domain, and M is a positive integer greater than 1; the target recipient of the first signaling performs M monitoring on the first frequency band, the M monitorings correspond one-to-one to the M channels, and the M monitorings respectively indicate whether the corresponding channels are busy; when the M monitorings all indicate that the corresponding channels are busy, the target recipient of the first signaling abandons sending wireless signals on the M channels and starts a first timer and updates the first counter by 1; the first monitoring is one of the M monitorings, and the first channel is a channel among the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used to determine the first bit block.

[0324] As a sub-embodiment of the above embodiment, the first communication device 410 corresponds to the second node in this application.

[0325] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, the data source 467} is used to receive the first signaling in the present application.

[0326] As an embodiment, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller / processor 475, and the memory 476} is used to send the first signaling in the present application.

[0327] As an embodiment, at least one of {the antenna 452, the transmitter 454, the multi-antenna transmit processor 458, the transmit processor 468, the controller / processor 459, the memory 460, the data source 467} is used to send the first signaling in the present application.

[0328] As an embodiment, at least one of {the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, the controller / processor 475, and the memory 476} is used to receive the first signaling in the present application.

[0329] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, the data source 467} is used to monitor the first type of signaling in the present application on the first frequency band in the present application.

[0330] As an embodiment, at least one of {the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, the controller / processor 475, and the memory 476} is used to monitor the first type of signaling in the present application on the first frequency band in the present application.

[0331] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, the data source 467} is used to perform the M monitoring in the present application on the first frequency band in the present application.

[0332] As an embodiment, at least one of {the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, the controller / processor 475, and the memory 476} is used to perform the M monitoring in the present application on the first frequency band in the present application.

[0333] As an embodiment, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller / processor 475, the memory 476} is used to abandon sending wireless signals on the M channels in the present application and start the first timer in the present application and update the first counter in the present application by 1.

[0334] As an embodiment, at least one of {the antenna 452, the transmitter 454, the multi-antenna transmit processor 458, the transmit processor 468, the controller / processor 459, the memory 460, the data source 467} is used to abandon sending wireless signals on the M channels in the present application and start the first timer in the present application and update the first counter in the present application by 1.

[0335] As an embodiment, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller / processor 475, the memory 476} is used to send the first signal in the present application on the first channel in the present application and the first counter in the present application remains unchanged.

[0336] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, the data source 467} is used to receive the first signal in the present application on the first channel in the present application.

[0337] As an embodiment, at least one of {the antenna 452, the transmitter 454, the multi-antenna transmit processor 458, the transmit processor 468, the controller / processor 459, the memory 460, the data source 467} is used to send the first signal in the present application on the first channel in the present application and the first counter in the present application remains unchanged.

[0338] As an embodiment, at least one of {the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, the controller / processor 475, and the memory 476} is used to receive the first signal in the present application on the first channel in the present application.

[0339] As an embodiment, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller / processor 475, and the memory 476} is used to send the second signal in the present application.

[0340] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, the data source 467} is used to receive the second signal in the present application.

[0341] As an embodiment, at least one of {the antenna 452, the transmitter 454, the multi-antenna transmit processor 458, the transmit processor 468, the controller / processor 459, the memory 460, the data source 467} is used to send the second signal in the present application.

[0342] As an embodiment, at least one of {the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, the controller / processor 475, and the memory 476} is used to receive the second signal in the present application.

[0343] Example 5

[0344] Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in the attached Figure 5 As shown in the attached Figure 5 middle, First Node U01 and Second Node N02 communicates with each other through the air interface. Figure 5 In the figure, the dotted box F1 is optional. Figure 5 In the figure, each box represents a step. It should be emphasized that the order of the boxes in the figure does not represent the temporal relationship between the steps represented.

[0345] for First node U01, in step S10, monitor the first type of signaling on the first frequency band; in step S11, receive the first signaling; in step S12, perform M monitoring on the first frequency band; in step S13, when the M monitorings all indicate that the corresponding channels are busy, give up sending wireless signals on the M channels and start the first timer and update the first counter by 1; in step S14, when the first monitoring indicates that the first channel is idle, send the first signal on the first channel and keep the first counter unchanged; in step S15, when M1 monitorings all indicate that the corresponding channels are idle, send wireless signals on each channel other than the first channel in the M1 channels; in step S16, when the first timer expires, reset the first counter to the initial value; in step S17, when the first counter reaches or exceeds the target threshold, send the second signal.

[0346] for Second node N02 , sending a first signal in step S20; monitoring whether a wireless signal is sent on M channels in step S21; receiving a first signal on the first channel in step S22; receiving a wireless signal on each channel other than the first channel in M1 channels in step S23; and receiving a second signal in step S24.

[0347] In Embodiment 5, the M monitorings correspond to M channels one by one, respectively, and the M monitorings indicate whether the corresponding channels are busy; the first signaling is used to indicate the time-frequency resources occupied by the M channels, and the M channels belong to the first frequency band in the frequency domain, and M is a positive integer greater than 1; the first monitoring is one of the M monitorings, and the first channel is a channel in the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used by the first node U01 to determine the first bit block. The M1 monitorings correspond to the M1 channels respectively, the first monitoring is one of the M1 monitorings, any monitoring in the M1 monitorings is one of the M monitorings, any channel in the M1 channels is one of the M channels, and M1 is a positive integer greater than 1 and not greater than M. The first signaling is a first-class signaling; the monitoring is performed whenever the first-class signaling is detected.

[0348] As an embodiment, the second node N02 does not receive a wireless signal on any channel other than the first channel among the M channels.

[0349] As an embodiment, the second node N02 receives a wireless signal on at least one channel other than the first channel among the M channels.

[0350] As an embodiment, the second node N02 does not receive a wireless signal on any channel other than the M1 channels among the M channels.

[0351] As an embodiment, the second node N02 monitors whether the second signal is sent.

[0352] As an embodiment, any monitoring other than the M1 monitoring among the M monitorings indicates that the corresponding channel is busy.

[0353] As an embodiment, M1-1 signals are respectively sent on M1-1 channels other than the first channel among the M1 channels, and the M1-1 signals respectively carry M1-1 bit blocks. The first signaling is used by the first node U01 to determine the M1-1 bit blocks; any bit block among the M1-1 bit blocks includes a positive integer number of bits.

[0354] As an embodiment, M1-1 signals are respectively sent on M1-1 channels other than the first channel among the M1 channels, and the M1-1 signals all carry the first bit block.

[0355] As an embodiment, the higher layer (Higher Layer) includes layer 2 (L2 layer).

[0356] As an embodiment, the higher layer (Higher Layer) includes layer 3 (L3 layer).

[0357] As an embodiment, the higher layer (Higher Layer) includes an RRC (Radio Resource Control) layer.

[0358] As an embodiment, the higher layer (Higher Layer) includes layer 2 (L2 layer) and layer 3 (L3 layer).

[0359] As an embodiment, the higher layer (Higher Layer) includes layer 2 (L2 layer) and layers above layer 2.

[0360] As an embodiment, the second signal is transmitted on PUSCH.

[0361] As an embodiment, the second signal is transmitted on PUCCH.

[0362] As an embodiment, the second signal includes a scheduling request (Scheduling Request).

[0363] As an embodiment, the second signal includes a MAC CE (Media Access Control Control Element).

[0364] As an embodiment, the second signal includes a physical layer signal.

[0365] As an embodiment, the second signal includes PRACH.

[0366] As an embodiment, the second signal includes a higher layer signal.

[0367] As an embodiment, the second signal includes a pre-session listening failure media access control control element (LBTfailure MAC CE).

[0368] As an embodiment, the second signal includes a scheduling request (Scheduling Request) for a pre-session listening failure media access control control element (LBT failure MAC CE).

[0369] As an embodiment, when there is at least one frequency band configured with PRACH in the first serving cell and no monitoring failure indication is triggered, the first transmitter switches from the first frequency band to a second frequency band, and the second signal includes PRACH.

[0370] As an embodiment, when all frequency bands configured with PRACH in the first serving cell have triggered the monitoring failure indication, the second signal includes the monitoring failure indication.

[0371] As an embodiment, when all frequency bands configured with PRACH in the first serving cell have triggered the monitoring failure indication, the second signal includes a wireless connection failure message.

[0372] As an embodiment, before the second signal is transmitted, the first receiver performs channel monitoring to determine that the channel occupied by the second signal can be used for wireless transmission.

[0373] As an embodiment, in response to the second signal being sent, the first node cancels the triggered monitoring failure indication of the first frequency band.

[0374] As an embodiment, in response to the second signal being sent, the first node cancels (Cancel) all triggered monitoring failure indications in the first frequency band.

[0375] As an embodiment, in response to the second signal being sent, the first node cancels (Cancelled) all triggered monitoring failure indications in the service cell to which the first frequency band belongs.

[0376] As an embodiment, in response to the second signal being sent, the first node cancels (Cancel) all triggered monitoring failure indications in the target serving cell set, and the second signal indicates the target serving cell set.

[0377] As a sub-embodiment of the above embodiment, the target serving cell set includes a positive integer number of serving cells.

[0378] As a sub-embodiment of the above embodiment, the target serving cell set includes serving cells to which the first frequency band belongs.

[0379] As a sub-embodiment of the above embodiment, the monitoring failure indication is triggered by any serving cell in the target serving cell set.

[0380] As an embodiment, the first frequency band belongs to a serving cell (Serving Cell).

[0381] As an embodiment, in response to canceling the monitoring failure indication of the first frequency band, the first counter is reset to an initial value.

[0382] As an embodiment, in response to the second signal being sent, the first counter is reset to an initial value.

[0383] As an embodiment, when the first counter reaches or exceeds a target threshold, the first transmitter triggers a monitoring failure indication of the first frequency band; wherein, as a response to the monitoring failure indication of the first frequency band being triggered, the second signal is generated.

[0384] As an embodiment, the monitoring failure indication is a consistent LBT failure.

[0385] As an embodiment, when the first counter reaches or exceeds a target threshold, the first receiver selects a new frequency band and performs LBT to determine whether random access can be initiated on the new frequency band.

[0386] As an embodiment, when the first counter reaches or exceeds a target threshold, the first receiver selects a new serving cell and performs LBT to determine whether random access can be initiated on the new serving cell.

[0387] As an embodiment, the first signaling is a first-type signaling; and the monitoring is performed whenever the first-type signaling is detected.

[0388] As an embodiment, when K first-type signalings are detected, K first monitorings are performed, where K is a positive integer.

[0389] As an embodiment, the second node monitors whether a wireless signal is sent on a given channel; if so, determines that the wireless signal is received; if not, determines that the wireless signal is not received; the given channel is any one of the M channels.

[0390] As an embodiment, the monitoring refers to blind detection, that is, receiving a signal and performing a decoding operation. When the decoding is determined to be correct based on the CRC (Cyclic Redundancy Check) bit, it is determined that the given signal is received; otherwise, it is determined that the given signal is not received.

[0391] As an embodiment, the monitoring refers to coherent detection, that is, using the RS sequence of DMRS for coherent reception and measuring the energy of the signal obtained after the coherent reception; when the energy of the signal obtained after the coherent reception is less than a first given threshold, it is determined that the given signal is not received; otherwise, it is determined that the given signal is received.

[0392] As an embodiment, the monitoring refers to coherent detection, that is, using a characteristic sequence for coherent reception and measuring the energy of the signal obtained after the coherent reception; when the energy of the signal obtained after the coherent reception is less than a second given threshold, it is determined that the given signal is not received; otherwise, it is determined that the given signal is received.

[0393] As an embodiment, the monitoring refers to energy detection, that is, sensing the energy of the wireless signal and averaging it over time to obtain the received energy; when the received energy is less than a third given threshold, it is determined that the given signal is not received; otherwise, it is determined that the given signal is received.

[0394] As an embodiment, the monitoring refers to power detection, that is, sensing the power of the wireless signal to obtain the received power; when the received power is less than a fourth given threshold, it is determined that the given signal is not received; otherwise, it is determined that the given signal is received.

[0395] As an embodiment, the first type of signaling is semi-statically configured.

[0396] As an embodiment, the first type of signaling is dynamically configured.

[0397] As an embodiment, the first type of signaling is higher layer signaling.

[0398] As an embodiment, the first type of signaling is RRC signaling.

[0399] As an embodiment, the first type of signaling is MAC CE signaling.

[0400] As an embodiment, the first type of signaling is physical layer signaling.

[0401] As an embodiment, the first type of signaling is transmitted on the downlink.

[0402] As an embodiment, the first type of signaling is transmitted on a secondary link.

[0403] As an embodiment, the first type of signaling includes DCI (Downlink Control Information) signaling.

[0404] As an embodiment, the first type of signaling is transmitted on PDCCH (Physical Downlink ControlCHannel).

[0405] As an embodiment, the first type of signaling includes SCI (Sidelink Control Information) signaling.

[0406] As an embodiment, when all the frequency bands configured with PRACH in the first service cell have been triggered with the monitoring failure indication, the first transmitter in the present application passes the monitoring failure indication to a higher layer; when there is at least one frequency band configured with PRACH in the first service cell that has not been triggered with the monitoring failure indication, the first transmitter switches from the first frequency band to a second frequency band; wherein the second frequency band is a frequency band of the first service cell that is configured with PRACH and has not been triggered with the monitoring failure indication.

[0407] As an embodiment, in response to the behavior of passing the monitoring failure indication to a higher layer, the first transmitter sends a wireless connection failure message.

[0408] As an embodiment, when there is at least one frequency band configured with PRACH in the first serving cell and the monitoring failure indication is not triggered, the first transmitter switches from the first frequency band to a second frequency band and starts a random access process.

[0409] As an embodiment, the first serving cell is a SpCell (Special Cell).

[0410] As an embodiment, the first serving cell is a PCell (Primary Cell).

[0411] As an embodiment, the first serving cell is a PSCell (Primary Secondary Cell GroupCell).

[0412] As an embodiment, the first frequency band is a frequency band in the first service cell.

[0413] As an embodiment, the first frequency band is any frequency band in the first service cell.

[0414] As an embodiment, the first frequency band is any frequency band in any service cell of the first node.

[0415] As an embodiment, the frequency band configured with PRACH (Physical random-access channel) is pre-configured.

[0416] As an embodiment, the frequency band configured with PRACH is configurable.

[0417] As an embodiment, the frequency band configured with PRACH includes a positive integer number of subcarriers.

[0418] As an embodiment, the frequency band configured with PRACH includes a carrier.

[0419] As an embodiment, the frequency band configured with PRACH includes a BWP (Bandwidth Part).

[0420] As an embodiment, the frequency band configured with PRACH includes a UL (UpLink) BWP.

[0421] As an embodiment, the frequency band configured with PRACH includes a subband.

[0422] As an embodiment, the frequency band configured with PRACH belongs to an unlicensed spectrum.

[0423] As an embodiment, the second frequency band is different from the first frequency band.

[0424] As an embodiment, the upper layer is above the MAC layer.

[0425] As an embodiment, the upper layer includes an RLC (Radio Link Control) layer.

[0426] As an embodiment, the upper layer includes a PDCP layer.

[0427] As an embodiment, the upper layer includes an RLC layer and a PDCP layer.

[0428] As an embodiment, the upper layer includes the RLC layer and layers above the RLC layer.

[0429] As an embodiment, the upper layer includes an RRC (Radio Resource Control) layer.

[0430] As an embodiment, the upper layer includes layer 3 (L3 layer).

[0431] As an embodiment, the upper layer includes layer 3 (L3 layer) and layers above layer 3.

[0432] As an embodiment, the upper layer includes NAS (Non-Access-Stratum).

[0433] As an embodiment, the behavior of passing the monitoring failure indication to an upper layer includes: passing the monitoring failure indication to an RLC (Radio Link Control) layer.

[0434] As an embodiment, the behavior of passing the monitoring failure indication to an upper layer includes: passing the monitoring failure indication to an RRC (Radio Resource Control) layer.

[0435] As an embodiment, the behavior of passing the monitoring failure indication to a higher layer includes: passing the monitoring failure indication to NAS (Non-Access-Stratum).

[0436] As an embodiment, the behavior transmits the monitoring failure indication to a higher layer to trigger an RLC failure (Failure).

[0437] As an embodiment, the behavior transmits the monitoring failure indication to a higher layer to trigger RLF (Radio Link Failure).

[0438] As an embodiment, in response to the behavior of passing the monitoring failure indication to a higher layer, the first transmitter sends a wireless connection failure message.

[0439] As an embodiment, the behavior of switching from the first frequency band to the second frequency band includes: stopping the ongoing random access process in the first serving cell.

[0440] As an embodiment, the behavior of switching from the first frequency band to the second frequency band includes: starting a new random access process.

[0441] As an embodiment, the behavior of switching from the first frequency band to the second frequency band includes: sending PRACH for the first serving cell on the second frequency band.

[0442] As an embodiment, the behavior of switching from the first frequency band to the second frequency band includes: performing LBT (Listen Before Talk) on the second frequency band.

[0443] As an embodiment, the behavior of switching from the first frequency band to the second frequency band includes: sending a wireless signal on a physical layer data channel on the second frequency band.

[0444] As an embodiment, the first node is a UE (User Equipment), and the physical layer data channel is a PUSCH (Physical Uplink Shared CHannel).

[0445] As an embodiment, the first node is a base station, and the physical layer data channel is a PDSCH (Physical Downlink Shared CHannel).

[0446] As an embodiment, the behavior of switching from the first frequency band to the second frequency band includes: receiving DCI (Downlink Control Information) for uplink grant (UpLink Grant), and the DCI for uplink grant indicates the frequency domain resources occupied by the physical layer data channel from the second frequency band.

[0447] As an embodiment, the wireless connection failure message is carried by higher layer signaling.

[0448] As an embodiment, the wireless connection failure message is carried by RRC signaling.

[0449] As an embodiment, the wireless connection failure message is carried by MAC CE signaling.

[0450] As an embodiment, the wireless connection failure message includes a RLF report.

[0451] As an embodiment, the wireless connection failure message includes MCGfailureInformation.

[0452] As an embodiment, the wireless connection failure message includes RRCReestablishmentRequest.

[0453] As an embodiment, the wireless connection failure message includes RRCConnectionReestablishmentRequest.

[0454] Example 6

[0455] Embodiment 6 illustrates a schematic diagram of determining M channels, as shown in the attached figure. Figure 6 shown.

[0456] In Example 6, the first signaling in the present application is used to indicate the time-frequency resources occupied by N channels, the N channels include the M channels, N is a positive integer greater than the M; any reference signal resource among the T reference signal resources is used to determine the multi-antenna related parameters of at least one channel among the N channels, the multi-antenna related parameters of any channel among the N channels are determined by one of the T reference signal resources, T is a positive integer greater than 1; which reference signal resource among the T reference signal resources is used to determine the M channels from the N channels by which the multi-antenna related parameters of the N channels are respectively determined.

[0457] As an embodiment, the first signaling explicitly indicates the time-frequency resources occupied by N channels.

[0458] As an embodiment, the first signaling implicitly indicates the time-frequency resources occupied by N channels.

[0459] As an embodiment, multi-antenna related parameters of at least two channels among the N channels are different.

[0460] As an embodiment, any one of the M channels is one of the N channels.

[0461] As an embodiment, the first signaling is used to indicate the T reference signal resources.

[0462] As an embodiment, the first signaling explicitly indicates the T reference signal resources.

[0463] As an embodiment, the first signaling implicitly indicates the T reference signal resources.

[0464] As an embodiment, the first signaling indicates the indexes of the T reference signal resources.

[0465] As an embodiment, the multi-antenna related parameters of the M channels are all determined by the same reference signal resource among the T reference signal resources.

[0466] As an embodiment, the multi-antenna related parameters of the M channels are all determined by a first reference signal resource among the T reference signal resources, and the first reference signal resource is any reference signal resource among the T reference signal resources.

[0467] As an embodiment, the multi-antenna related parameters of any channel other than the M channels among the N channels are determined by a reference signal resource other than the first reference signal resource among the T reference signal resources.

[0468] As an embodiment, the T reference signal resources are divided into T1 resource groups, any reference signal resource among the T reference signal resources belongs to only one resource group among the T1 resource groups, any resource group among the T1 resource groups includes at least one reference signal resource among the T reference signal resources, and T1 is a positive integer not greater than T; the multi-antenna related parameters of any channel among the M channels are determined by a reference signal resource in the first resource group, and the first resource group is one of the T1 resource groups.

[0469] As a sub-embodiment of the above embodiment, T1 is equal to T.

[0470] As a sub-embodiment of the above embodiment, the T1 is smaller than the T.

[0471] As a sub-embodiment of the above embodiment, the multi-antenna related parameters of any channel other than the M channels among the N channels are determined by a reference signal resource outside the first resource group among the T reference signal resources.

[0472] As a sub-embodiment of the above embodiment, the N channels are divided into T1 channel groups, any channel among the N channels belongs to only one channel group among the T1 channel groups, and any channel group among the T1 channel groups includes at least one channel among the N channels; the T1 channel groups correspond one-to-one to the T1 resource groups respectively; the M channels all belong to any channel group among the N1 channel groups; the given channel group is any channel group among the T1 channel groups, the given resource group is a resource group among the T1 resource groups corresponding to the given channel group, and the multi-antenna related parameters of any channel in the given channel group are determined by a reference signal resource in the given resource group.

[0473] As an embodiment, the N channels are divided into N1 channel groups, any channel among the N channels belongs to only one channel group among the N1 channel groups, any channel group among the N1 channel groups includes at least one channel among the N channels, and N1 is a positive integer greater than 1 and less than N; the multi-antenna related parameters of the N channels are respectively determined by which reference signal resource among the T reference signal resources are used to determine the N1 channel groups; the M channels all belong to any channel group among the N1 channel groups.

[0474] As a sub-embodiment of the above embodiment, multi-antenna related parameters of any two channels among the N channels belonging to the same channel group among the N1 channel groups are determined by the same reference signal resource among the T reference signal resources.

[0475] As a sub-embodiment of the above embodiment, multi-antenna related parameters of two channel groups in the N1 channel groups are determined by the same reference signal resource in the T reference signal resources.

[0476] As a sub-embodiment of the above embodiment, multi-antenna related parameters of any two channel groups among the N1 channel groups are respectively determined by different reference signal resources among the T reference signal resources.

[0477] As a sub-embodiment of the above embodiment, the N1 is equal to the T, and the multi-antenna related parameters of the N1 channel groups are respectively determined by the T reference signal resources.

[0478] As an embodiment, the multi-antenna related parameters of the M channels are respectively used for wireless transmission on the M channels.

[0479] As an embodiment, multi-antenna related parameters of M channels are respectively used to receive wireless signals on the M channels.

[0480] As an embodiment, the multi-antenna related parameters include an analog beamforming matrix.

[0481] As an embodiment, the multi-antenna related parameters include a digital beamforming matrix.

[0482] As an embodiment, the multi-antenna related parameters include coefficients of a spatial filter.

[0483] As an embodiment, the multi-antenna related parameters include QCL (Quasi co-location) parameters.

[0484] As an embodiment, the multi-antenna related parameters include TCI (Transmission Configuration Indicator) state.

[0485] As an embodiment, the QCL parameters include: spatial parameters.

[0486] As an embodiment, the QCL parameters include: spatial reception parameters (Spatial Rx parameter).

[0487] As an embodiment, the QCL parameters include: spatial transmission parameters (Spatial Tx parameter).

[0488] As an embodiment, the QCL parameters include: a spatial domain filter (Spatial Domain Filter).

[0489] As an embodiment, the QCL parameters include: a spatial domain transmission filter (Spatial Domain Transmission Filter).

[0490] As an embodiment, the QCL parameters include: beam.

[0491] As an embodiment, the QCL parameters include: a beamforming matrix.

[0492] As an embodiment, the QCL parameters include: a beamforming vector.

[0493] As an embodiment, the QCL parameters include: an analog beamforming matrix.

[0494] As an embodiment, the QCL parameters include: an analog beamforming vector.

[0495] As an embodiment, the QCL parameters include: angle of arrival.

[0496] As an embodiment, the QCL parameters include: angle of departure.

[0497] As an embodiment, the QCL parameters include: spatial correlation.

[0498] As an embodiment, the type of the QCL parameter includes QCL-TypeD.

[0499] As an embodiment, the type of the QCL parameter includes at least one of QCL-TypeA, QCL-TypeB, and QCL-TypeC.

[0500] As an embodiment, the type of the QCL parameter includes at least one of Doppler shift, Doppler spread, average delay, and delay spread.

[0501] As an embodiment, the meaning that a given reference signal resource is used to determine multi-antenna related parameters of a given channel includes: an antenna port for wireless transmission on the given channel and an antenna port for the given reference signal resource are QCL.

[0502] As a sub-embodiment of the above embodiment, the given reference signal resource is any reference signal resource among the T reference signal resources, and the given channel is one of the N channels.

[0503] As an embodiment, the given reference signal resource is used to determine the multi-antenna related parameters of a given channel, which means that any antenna port of wireless transmission on the given channel and at least one antenna port of the given reference signal resource are QCL.

[0504] As a sub-embodiment of the above embodiment, the given reference signal resource is any reference signal resource among the T reference signal resources, and the given channel is one of the N channels.

[0505] As an embodiment, the meaning that a given reference signal resource is used to determine multi-antenna related parameters of a given channel includes: at least one antenna port for wireless transmission on the given channel and at least one antenna port of the given reference signal resource are QCL.

[0506] As a sub-embodiment of the above embodiment, the given reference signal resource is any reference signal resource among the T reference signal resources, and the given channel is one of the N channels.

[0507] As an embodiment, the meaning that a given reference signal resource is used to determine multi-antenna related parameters of a given channel includes: any antenna port of the given reference signal resource and at least one antenna port of wireless transmission on the given channel are QCL.

[0508] As a sub-embodiment of the above embodiment, the given reference signal resource is any reference signal resource among the T reference signal resources, and the given channel is one of the N channels.

[0509] As an embodiment, the meaning that a given reference signal resource is used to determine multi-antenna related parameters of a given channel includes: receiving a QCL parameter of the given reference signal resource and using it for wireless transmission on the given channel.

[0510] As a sub-embodiment of the above embodiment, the given reference signal resource is any reference signal resource among the T reference signal resources, and the given channel is one of the N channels.

[0511] As a sub-embodiment of the above embodiment, the given reference signal resource is a downlink reference signal resource.

[0512] As a sub-embodiment of the above embodiment, the given reference signal resource is a sidelink (SideLink) reference signal resource.

[0513] As an embodiment, the meaning that a given reference signal resource is used to determine the multi-antenna related parameters of a given channel includes: a QCL parameter received by the given reference signal resource is used to determine the multi-antenna related parameters of the given channel.

[0514] As a sub-embodiment of the above embodiment, the given reference signal resource is any reference signal resource among the T reference signal resources, and the given channel is one of the N channels.

[0515] As a sub-embodiment of the above embodiment, the given reference signal resource is a downlink reference signal resource.

[0516] As a sub-embodiment of the above embodiment, the given reference signal resource is a sidelink (SideLink) reference signal resource.

[0517] As an embodiment, the meaning that a given reference signal resource is used to determine a multi-antenna related parameter of a given channel includes: the multi-antenna related parameter of the given channel includes a QCL parameter for receiving the given reference signal resource.

[0518] As a sub-embodiment of the above embodiment, the given reference signal resource is any reference signal resource among the T reference signal resources, and the given channel is one of the N channels.

[0519] As a sub-embodiment of the above embodiment, the given reference signal resource is a downlink reference signal resource.

[0520] As a sub-embodiment of the above embodiment, the given reference signal resource is a sidelink (SideLink) reference signal resource.

[0521] As an embodiment, the meaning that a given reference signal resource is used to determine multi-antenna related parameters of a given channel includes: a QCL parameter for sending the given reference signal resource is used for wireless transmission on the given channel.

[0522] As a sub-embodiment of the above embodiment, the given reference signal resource is any reference signal resource among the T reference signal resources, and the given channel is one of the N channels.

[0523] As a sub-embodiment of the above embodiment, the given reference signal resource is an uplink reference signal resource.

[0524] As a sub-embodiment of the above embodiment, the given reference signal resource is a secondary link reference signal resource.

[0525] As an embodiment, the meaning that a given reference signal resource is used to determine the multi-antenna related parameters of a given channel includes: a QCL parameter for sending the given reference signal resource is used to determine the multi-antenna related parameters of the given channel.

[0526] As a sub-embodiment of the above embodiment, the given reference signal resource is any reference signal resource among the T reference signal resources, and the given channel is one of the N channels.

[0527] As a sub-embodiment of the above embodiment, the given reference signal resource is an uplink reference signal resource.

[0528] As a sub-embodiment of the above embodiment, the given reference signal resource is a secondary link reference signal resource.

[0529] As an embodiment, the meaning that a given reference signal resource is used to determine a multi-antenna related parameter of a given channel includes: the multi-antenna related parameter of the given channel includes a QCL parameter for sending the given reference signal resource.

[0530] As a sub-embodiment of the above embodiment, the given reference signal resource is any reference signal resource among the T reference signal resources, and the given channel is one of the N channels.

[0531] As a sub-embodiment of the above embodiment, the given reference signal resource is an uplink reference signal resource.

[0532] As a sub-embodiment of the above embodiment, the given reference signal resource is a secondary link reference signal resource.

[0533] Example 7

[0534] Embodiment 7 illustrates another schematic diagram of determining M channels, as shown in the attached figure. Figure 7 shown.

[0535] In Example 7, the first signaling in the present application is used to indicate the time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than the M; the relationship between the bit blocks respectively allocated to the N channels is used to determine the M channels from the N channels.

[0536] As an embodiment, the given bit block is a bit block allocated to a given channel, and the given channel is allocated to the transmission of the given bit block; the given channel is any one of the N channels.

[0537] As an embodiment, the relationship between two bit blocks includes: whether the two bit blocks are the same.

[0538] As an embodiment, the relationship between two bit blocks includes: whether the two bit blocks are related.

[0539] As an embodiment, the relationship between two bit blocks includes: whether one of the two bit blocks includes the other bit block.

[0540] As an embodiment, the relationship between the two bit blocks includes: a size relationship between the two bit blocks.

[0541] As an embodiment, the relationship between the two bit blocks includes: whether the two bit blocks are the same as the first bit block.

[0542] As an embodiment, the relationship between two bit blocks includes: whether the two bit blocks are related to the first bit block.

[0543] As an embodiment, whether the bit blocks allocated to the N channels are respectively the same as the first bit block is used to determine the M channels from the N channels.

[0544] As an embodiment, the M channels include all channels among the N channels that are allocated to the transmission of the same bit block.

[0545] As an embodiment, the M channels include all channels among the N channels allocated to the transmission of the first bit block.

[0546] As an embodiment, the M channels include all channels in the N channels whose allocated bit blocks are the same in size.

[0547] As an embodiment, the N channels are divided into N2 channel groups, any channel among the N channels belongs to only one channel group among the N2 channel groups, any channel group among the N2 channel groups includes at least one channel among the N channels, and N2 is a positive integer greater than 1 and less than N; the relationship between the bit blocks respectively allocated to the N channels is used to determine the N2 channel groups; the M channels all belong to any channel group among the N2 channel groups.

[0548] As a sub-embodiment of the above embodiment, any two channels belonging to the same channel group among the N2 channel groups are respectively allocated bit blocks of the same size.

[0549] As a sub-embodiment of the above embodiment, the sizes of bit blocks allocated to any two channels belonging to different channel groups among the N2 channel groups are different.

[0550] As a sub-embodiment of the above embodiment, in the N2 channel groups, there are two channel groups where the sizes of bit blocks allocated to any two channels are the same.

[0551] As a sub-embodiment of the above embodiment, any two channels belonging to the same channel group among the N2 channel groups are respectively allocated the same bit blocks.

[0552] As a sub-embodiment of the above embodiment, any two channels belonging to different channel groups among the N2 channel groups are respectively allocated different bit blocks.

[0553] As a sub-embodiment of the above embodiment, in the N2 channel groups, any two channels in two channel groups have the same allocated bit blocks.

[0554] As a sub-embodiment of the above embodiment, any two channels belonging to the same channel group among the N2 channel groups are related to the bit blocks allocated to them respectively.

[0555] As a sub-embodiment of the above embodiment, the bit blocks respectively allocated to any two channels belonging to different channel groups among the N2 channel groups are irrelevant.

[0556] As a sub-embodiment of the above embodiment, in the N2 channel groups, there are any two channels in two channel groups whose allocated bit blocks are related.

[0557] Example 8

[0558] Embodiment 8 illustrates another schematic diagram of determining M channels, as shown in the attached figure. Figure 8 shown.

[0559] In Example 8, the first signaling in the present application is used to indicate the time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than the M; the relationship between the time-frequency resources respectively occupied by the N channels is used to determine the M channels from the N channels.

[0560] As an embodiment, the relationship between two time-frequency resources includes: whether the two time-frequency resources are orthogonal.

[0561] As an embodiment, the relationship between two time-frequency resources includes: whether the time domain resources occupied by the two time-frequency resources are orthogonal.

[0562] As an embodiment, the relationship between two time-frequency resources includes: whether the time domain resources occupied by the two time-frequency resources belong to the same time unit.

[0563] As an embodiment, the relationship between two time-frequency resources includes: whether the time domain resources occupied by the two time-frequency resources belong to the same time unit set.

[0564] As an embodiment, whether the time-frequency resources respectively occupied by the N channels are orthogonal is used to determine the M channels from the N channels.

[0565] As an embodiment, whether the time domain resources respectively occupied by the N channels are orthogonal is used to determine the M channels from the N channels.

[0566] As an embodiment, whether the time domain resources respectively occupied by the N channels belong to the same time unit is used to determine the M channels from the N channels.

[0567] As an embodiment, whether the time domain resources respectively occupied by the N channels belong to the same time unit set is used to determine the M channels from the N channels.

[0568] As an embodiment, the N channels are divided into N3 channel groups, any channel among the N channels belongs to only one channel group among the N3 channel groups, any channel group among the N3 channel groups includes at least one channel among the N channels, and N3 is a positive integer greater than 1 and less than N; the relationship between the time-frequency resources respectively occupied by the N channels is used to determine the N3 channel groups; the M channels all belong to any channel group among the N3 channel groups.

[0569] As a sub-embodiment of the above embodiment, the N3 channel groups respectively belong to N3 time unit sets in the time domain, the N3 time unit sets appear periodically, and the time unit sets include more than one continuous time unit.

[0570] As a sub-embodiment of the above embodiment, the N3 channel groups respectively belong to N3 time units in the time domain.

[0571] As a sub-embodiment of the above embodiment, the N3 channel groups belong to the same time unit in the time domain.

[0572] As a sub-embodiment of the above embodiment, at least two channel groups among the N3 channel groups belong to different time units in the time domain.

[0573] As a sub-embodiment of the above embodiment, time-frequency resources occupied by any two channels belonging to the same channel group among the N3 channel groups are overlapping.

[0574] As a sub-embodiment of the above embodiment, time-frequency resources occupied by any two channels belonging to different channel groups among the N3 channel groups are orthogonal.

[0575] As a sub-embodiment of the above embodiment, time-frequency resources occupied by two channels in two channel groups among the N3 channel groups are overlapping.

[0576] As a sub-embodiment of the above embodiment, time domain resources occupied by any two channels belonging to the same channel group among the N3 channel groups are overlapping.

[0577] As a sub-embodiment of the above embodiment, time domain resources occupied by any two channels belonging to different channel groups among the N3 channel groups are orthogonal.

[0578] As a sub-embodiment of the above embodiment, time domain resources occupied by two channels in two channel groups among the N3 channel groups are overlapping.

[0579] Example 9

[0580] Embodiment 9 illustrates a schematic diagram of whether a channel corresponding to a given monitoring indication is busy; Fig. 9 shown.

[0581] In Embodiment 9, the given monitoring includes performing X energy detections in X time sub-pools on a given frequency band, respectively, to obtain X detection values; when X1 of the X detection values ​​are lower than a first reference threshold, the channel corresponding to the given monitoring indication is idle; otherwise, the channel corresponding to the given monitoring indication is busy; X is a positive integer, and X1 is a positive integer not greater than X. The given monitoring corresponds to any one of the M monitorings in the present application, and the given frequency band corresponds to the first frequency band in the present application; or, the given monitoring corresponds to any one of the M monitorings in the present application, the given frequency band corresponds to one of the M sub-frequency bands in the present application and the given frequency band corresponds to the given monitoring. The process of the given monitoring may be performed by the attached Fig. 9 The flowchart in is described.

[0582] In the attached Fig. 9In the present application, the first node is in an idle state in step S1001, and determines whether it needs to send in step S1002; performs energy detection in a delay period (defer duration) in step 1003; determines whether all time slots in the delay period are idle in step S1004, and if so, proceeds to step S1005 to set the target counter equal to the X1; otherwise, returns to step S1004; determines whether the target counter is 0 in step S1006, and if so, proceeds to step S1007 to indicate that the corresponding channel is idle; otherwise, before the first moment, proceeds to step S1008 to perform energy detection in an additional time slot period (additional slot duration); determines whether the additional time slot period is idle in step S1009, and if so, proceeds to step S1010 to reduce the target counter by 1, and then returns to step 1006; otherwise, proceeds to step S1011 to perform energy detection in an additional delay period (additionaldefer duration); in step S1012, determine whether all time slots in this additional delay period are idle, if so, proceed to step S1010; otherwise, return to step S1011.

[0583] In Embodiment 9, before the first moment, Fig. 9 The target counter in step S1010 is cleared to zero, the channel corresponding to the given monitoring indication is idle, and wireless transmission can be performed on the given frequency band; otherwise, the process proceeds to step S1014 and the channel corresponding to the indication is busy, and wireless transmission on the given frequency band is abandoned. The condition for clearing the target counter is that the X1 detection values ​​in the X detection values ​​are all lower than the first reference threshold, and the start time of the X1 time sub-pools in the X time sub-pools respectively corresponding to the X1 detection values ​​is within the attached Fig. 9 After step S1005 in .

[0584] As an embodiment, the channel corresponding to the given monitoring belongs to the given frequency band in the frequency domain.

[0585] As an embodiment, the end time of the given monitoring is no later than the start time of the channel corresponding to the given monitoring.

[0586] As an embodiment, the X1 is equal to the X.

[0587] As an embodiment, the X1 is smaller than the X.

[0588] As an embodiment, the end time of the X time sub-pools is no later than the first time.

[0589] As an embodiment, the first moment is the starting moment of the channel corresponding to the given monitoring.

[0590] As an embodiment, the first time is no later than the start time of the channel corresponding to the given monitoring.

[0591] As an embodiment, the X time sub-pools include Fig. 9 Some or all of the delay periods in the

[0592] As an embodiment, the X time sub-pools include Fig. 9 All delay periods in the time slot, as well as some or all of the additional time slot periods.

[0593] As an embodiment, the X time sub-pools include Fig. 9 All delay periods, part or all of the additional time slot periods, and part or all of the additional delay periods.

[0594] As an embodiment, the duration of any time sub-pool among the X time sub-pools is one of {16 microseconds, 9 microseconds}.

[0595] As an embodiment, any time slot duration within a given time period is one of the X time sub-pools; the given time period is an additional Fig. 9 Any one of the periods {all delay periods, all additional time slot periods, all additional delay periods} included in .

[0596] As an embodiment, performing energy detection within a given time period means: performing energy detection within all time slots (slot duration) within the given time period; the given time period is an additional Fig. 9 Any one of the periods {all delay periods, all additional time slot periods, all additional delay periods} included in .

[0597] As an embodiment, being judged as idle by energy detection in a given time period means that: all time slots included in the given time period are judged as idle by energy detection; the given time period is an additional time slot. Fig. 9 Any one of the periods {all delay periods, all additional time slot periods, all additional delay periods} included in .

[0598] As an embodiment, a given time slot period is judged to be idle through energy detection, which means that: the first node senses the power of all wireless signals on the given frequency band in a given time unit, and averages over time, and the obtained received power is lower than the first reference threshold; the given time unit is a continuous period in the given time slot period.

[0599] As a sub-embodiment of the above embodiment, the duration of the given time unit is not shorter than 4 microseconds.

[0600] As an embodiment, a given time slot period is judged to be idle through energy detection means that: the first node senses the energy of all wireless signals on the given frequency band in a given time unit, and averages over time, and the obtained received energy is lower than the first reference threshold; the given time unit is a continuous period in the given time slot period.

[0601] As a sub-embodiment of the above embodiment, the duration of the given time unit is not shorter than 4 microseconds.

[0602] As an embodiment, performing energy detection in a given time period means: performing energy detection in all time sub-pools in the given time period; the given time period is an additional Fig. 9 Any one of {all delay periods, all additional time slot periods, all additional delay periods} included in the X time sub-pools, and all time sub-pools belong to the X time sub-pools.

[0603] As an embodiment, being judged as idle through energy detection in a given time period means that: the detection values ​​obtained through energy detection of all time sub-pools included in the given time period are lower than the first reference threshold; the given time period is an additional time period. Fig. 9 Any one of {all delay periods, all additional time slot periods, all additional delay periods} included in the X time sub-pools, the all time sub-pools belong to the X time sub-pools, and the detection value belongs to the X detection values.

[0604] As an embodiment, the duration of a delay period (defer duration) is 16 microseconds plus Y1 times 9 microseconds, where Y1 is a positive integer.

[0605] As a sub-embodiment of the above embodiment, one delay period includes Y1+1 time sub-pools in the X time sub-pools.

[0606] As a reference embodiment of the above sub-embodiment, the duration of the first time sub-pool in the Y1+1 time sub-pools is 16 microseconds, and the durations of the other Y1 time sub-pools are all 9 microseconds.

[0607] As a sub-embodiment of the above embodiment, Y1 belongs to {1, 2, 3, 7}.

[0608] As a sub-embodiment of the above embodiment, a given priority level is used to determine the Y1.

[0609] As an embodiment, the given priority class is a channel access priority class (Channel Access Priority Class).

[0610] As an embodiment, the definition of the channel access priority level refers to Chapter 4 of 3GPP TS37.213.

[0611] As an embodiment, a delay duration (defer duration) includes a plurality of slot durations (slot duration).

[0612] As a sub-embodiment of the above embodiment, a first time slot period and a second time slot period in the multiple time slot periods are discontinuous.

[0613] As a sub-embodiment of the above embodiment, the time interval between a first time slot period and a second time slot period in the multiple time slot periods is 7 milliseconds.

[0614] As an embodiment, the duration of an additional delay period (additional defer duration) is 16 microseconds plus Y2 times 9 microseconds, where Y2 is a positive integer.

[0615] As a sub-embodiment of the above embodiment, an additional delay period includes Y2+1 time sub-pools in the X time sub-pools.

[0616] As a reference embodiment of the above sub-embodiment, the duration of the first time sub-pool in the Y2+1 time sub-pools is 16 microseconds, and the duration of the other Y2 time sub-pools is 9 microseconds.

[0617] As a sub-embodiment of the above embodiment, a given priority level is used to determine the Y2.

[0618] As a sub-embodiment of the above embodiment, Y2 belongs to {1, 2, 3, 7}.

[0619] As an embodiment, the duration of one delay period is equal to the duration of one additional delay period.

[0620] As an embodiment, Y1 is equal to Y2.

[0621] As an embodiment, an additional defer duration includes a plurality of slot durations.

[0622] As a sub-embodiment of the above embodiment, a first time slot period and a second time slot period in the multiple time slot periods are discontinuous.

[0623] As a sub-embodiment of the above embodiment, the time interval between a first time slot period and a second time slot period in the multiple time slot periods is 7 milliseconds.

[0624] As an embodiment, the duration of one slot period (slot duration) is 9 microseconds.

[0625] As an embodiment, one time slot period is one time sub-pool among the X time sub-pools.

[0626] As an embodiment, the duration of one additional slot duration is 9 microseconds.

[0627] As an embodiment, one additional time slot period includes 1 time sub-pool among the X time sub-pools.

[0628] As an embodiment, the X energy detections are used to determine whether the given frequency band is idle.

[0629] As an embodiment, the units of the X detection values ​​are all dBm (millidecibels).

[0630] As an embodiment, the units of the X detection values ​​are all milliwatts (mW).

[0631] As an embodiment, the units of the X detection values ​​are all joules.

[0632] As an embodiment, X is greater than 1.

[0633] As an embodiment, the first reference threshold is configurable.

[0634] As an embodiment, the first reference threshold is predefined.

[0635] As an embodiment, the first reference threshold is configured by higher layer signaling.

[0636] As an embodiment, the first reference threshold is configured by RRC signaling.

[0637] As an embodiment, the unit of the first reference threshold is dBm (millidecibels).

[0638] As an embodiment, the unit of the first reference threshold is milliwatt (mW).

[0639] As an embodiment, the unit of the first reference threshold is joule.

[0640] As an embodiment, the first reference threshold is equal to or less than -72dBm.

[0641] As an embodiment, the first reference threshold is any value equal to or less than a first given value.

[0642] As a sub-embodiment of the above embodiment, the first given value is predefined.

[0643] As a sub-embodiment of the above embodiment, the first given value is configured by high-layer signaling.

[0644] As an embodiment, the first reference threshold is freely selected by the first node under the condition that it is equal to or less than a first given value.

[0645] As a sub-embodiment of the above embodiment, the first given value is predefined.

[0646] As a sub-embodiment of the above embodiment, the first given value is configured by high-layer signaling.

[0647] As an embodiment, the X energy detections are energy detections in a Cat 4 LBT (Listen Before Talk) process, the X1 is a CWp in the Cat 4 LBT process, and the CWp is the size of a contention window.

[0648] As an embodiment, the specific definition of the CWp refers to Chapter 15 of 3GPP TS36.213.

[0649] As an embodiment, the specific definition of the CWp refers to Chapter 4 of 3GPP TS37.213.

[0650] As an embodiment, the durations of any two time sub-pools in the X1 time sub-pools are equal.

[0651] As an embodiment, at least two time sub-pools in the X1 time sub-pools have unequal durations.

[0652] As an embodiment, the X1 time sub-pools include the latest time sub-pool among the X time sub-pools.

[0653] As an embodiment, the X1 time sub-pools only include time slot periods in the eCCA.

[0654] As an embodiment, the X time subpools include the X1 time subpools and X2 time subpools, and any time subpool of the X2 time subpools does not belong to the X1 time subpool; and X2 is a positive integer not greater than X minus X1.

[0655] As a sub-embodiment of the above embodiment, the X2 time sub-pools include time slot periods in the initial CCA.

[0656] As a sub-embodiment of the above embodiment, positions of the X2 time sub-pools in the X time sub-pools are continuous.

[0657] As a sub-embodiment of the above embodiment, a detection value corresponding to at least one time sub-pool among the X2 time sub-pools is lower than the first reference threshold.

[0658] As a sub-embodiment of the above embodiment, a detection value corresponding to at least one time sub-pool among the X2 time sub-pools is not lower than the first reference threshold.

[0659] As a sub-embodiment of the above embodiment, the X2 time sub-pools include all time slot periods in all delay periods.

[0660] As a sub-embodiment of the above embodiment, the X2 time sub-pools include all time slot periods within at least one additional delay period.

[0661] As a sub-embodiment of the above embodiment, the X2 time sub-pools include at least one additional time slot period.

[0662] As a sub-embodiment of the above embodiment, the X2 time sub-pools include: Fig. 9 All additional time slot periods and all time slot periods within all additional delay periods that are judged to be non-idle through energy detection.

[0663] Example 10

[0664] Embodiment 10 illustrates another schematic diagram of whether the channel corresponding to a given monitoring indication is busy; Fig.10 shown.

[0665] In embodiment 10, the given monitoring includes performing X energy detections in X time sub-pools on a given frequency band, respectively, to obtain X detection values; when X1 of the X detection values ​​are lower than a first reference threshold, the channel corresponding to the given monitoring indication is idle; otherwise, the channel corresponding to the given monitoring indication is busy; X is a positive integer, and X1 is a positive integer not greater than X. The given monitoring corresponds to any one of the M monitorings in the present application, and the given frequency band corresponds to the first frequency band in the present application; or, the given monitoring corresponds to any one of the M monitorings in the present application, the given frequency band corresponds to one of the M sub-frequency bands in the present application and the given frequency band corresponds to the given monitoring. The process of the given monitoring may be performed by the attached Fig.10 The flowchart in is described.

[0666] In Embodiment 10, the first node in the present application is in an idle state in step S2201, and determines whether it needs to send in step S2202; performs energy detection in a sensing interval in step 2203; determines whether all time slots in the sensing interval are idle in step S2204, and if so, proceeds to step S2205 to indicate that the corresponding channel is idle, and wireless transmission can be performed on the given frequency band; otherwise, returns to step S2203 before the first moment. When it is determined in step S2206 that the first moment has been reached, proceeds to step S2207 to indicate that the corresponding channel is busy, and wireless transmission on the given frequency band is abandoned.

[0667] As an embodiment, the channel corresponding to the given monitoring belongs to the given frequency band in the frequency domain.

[0668] As an embodiment, the end time of the given monitoring is no later than the start time of the channel corresponding to the given monitoring.

[0669] As an embodiment, the end time of the X time sub-pools is no later than the first time.

[0670] As an embodiment, the first moment is the starting moment of the channel corresponding to the given monitoring.

[0671] As an embodiment, the first time is no later than the start time of the channel corresponding to the given monitoring.

[0672] As an embodiment, the specific definition of the perception time refers to Chapter 15.2 in 3GPP TS36.213.

[0673] As an embodiment, the specific definition of the perception time refers to Chapter 4 of 3GPP TS37.213.

[0674] As an embodiment, X1 is equal to 1.

[0675] As an embodiment, X1 is equal to 2.

[0676] As an embodiment, the X1 is equal to the X.

[0677] As an example, the duration of one sensing interval is 25 microseconds.

[0678] As an example, the duration of one sensing interval is 16 microseconds.

[0679] As an embodiment, one perception time includes two time slots, and the two time slots are discontinuous in the time domain.

[0680] As a sub-embodiment of the above embodiment, the time interval in the 2 time slot periods is 7 microseconds.

[0681] As an embodiment, the X time sub-pools include the listening time in Category 2LBT.

[0682] As an embodiment, the X time sub-pools include time slots in a sensing interval in a Type 2 UL channel access procedure.

[0683] As an embodiment, the specific definition of the perception time interval refers to Chapter 15.2 in 3GPP TS36.213.

[0684] As an embodiment, the specific definition of the perception time interval refers to Chapter 4 of 3GPP TS37.213.

[0685] As an embodiment, the duration of the sensing time interval is 25 microseconds.

[0686] As an embodiment, the duration of the sensing time interval is 16 microseconds.

[0687] As an embodiment, the X time sub-pools include Tf in a sensing interval in a Type 2 UL channel access procedure.

[0688] As an embodiment, the X time sub-pools include Tf and Tsl in a sensing interval in a Type 2 UL channel access procedure.

[0689] As an embodiment, the specific definition of the Tf and the Tsl refers to Chapter 15.2 in 3GPP TS36.213.

[0690] As an embodiment, the specific definition of the Tf and the Tsl refers to Chapter 4 of 3GPP TS37.213.

[0691] As an embodiment, the duration of Tf is 16 microseconds.

[0692] As an embodiment, the duration of Tsl is 9 microseconds.

[0693] As an embodiment, X1 is equal to 1, and the duration of the X1 time sub-pools is 16 microseconds.

[0694] As an embodiment, X1 is equal to 2, the duration of the first time subpool in the X1 time subpools is 16 microseconds, and the duration of the second time subpool in the X1 time subpools is 9 microseconds.

[0695] As an embodiment, the duration of the X1 time sub-pools is 9 microseconds; the time interval between the first time sub-pool and the second time sub-pool in the X1 time sub-pools is 7 microseconds, and X1 is equal to 2.

[0696] Embodiment 11

[0697] Embodiment 11 illustrates a structural block diagram of a processing device in a first node device, as shown in the attached figure. Fig.11 As shown in the attached Fig.11 In the embodiment, the first node device processing device 1200 includes a first receiver 1201 and a first transmitter 1202.

[0698] As an embodiment, the first node device 1200 is a user equipment.

[0699] As an embodiment, the first node device 1200 is a relay node.

[0700] As an embodiment, the first node device 1200 is a base station device.

[0701] As an embodiment, the first node device 1200 is a vehicle-mounted communication device.

[0702] As an embodiment, the first node device 1200 is a user equipment supporting V2X communication.

[0703] As an embodiment, the first node device 1200 is a relay node supporting V2X communication.

[0704] As an embodiment, the first receiver 1201 includes the attached Figure 4 At least the first two of the antenna 452, receiver 454, multi-antenna receive processor 458, receive processor 456, controller / processor 459, memory 460 and data source 467.

[0705] As an embodiment, the first receiver 1201 includes the attached Figure 4 At least the first two of the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller / processor 475 and the memory 476.

[0706] As an embodiment, the first transmitter 1202 includes the attached Figure 4 At least the first two of the antenna 452, transmitter 454, multi-antenna transmitter processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467.

[0707] As an embodiment, the first transmitter 1202 includes the attached Figure 4 At least the first two of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476.

[0708] The first receiver 1201 receives a first signaling; performs M monitoring on a first frequency band, wherein the M monitorings correspond to M channels one by one, and the M monitorings respectively indicate whether the corresponding channels are busy;

[0709] The first transmitter 1202, when the M monitorings all indicate that the corresponding channels are busy, abandons sending wireless signals on the M channels, starts a first timer, and updates a first counter by 1; when the first monitoring indicates that the first channel is idle, sends a first signal on the first channel and the first counter remains unchanged; when the first timer expires, resets the first counter to an initial value;

[0710] In embodiment 11, the first signaling is used to indicate the time-frequency resources occupied by the M channels, the M channels all belong to the first frequency band in the frequency domain, and M is a positive integer greater than 1; the first monitoring is one of the M monitorings, and the first channel is a channel among the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used to determine the first bit block.

[0711] As an embodiment, when M1 monitorings all indicate that the corresponding channels are idle, the first transmitter 1202 sends a wireless signal on each channel other than the first channel among the M1 channels; wherein the M1 monitorings correspond to the M1 channels respectively, the first monitoring is one of the M1 monitorings, any monitoring among the M1 monitorings is one of the M monitorings, any channel among the M1 channels is one of the M channels, and M1 is a positive integer greater than 1 and not greater than M.

[0712] As an embodiment, the first signaling is used to indicate the time-frequency resources occupied by N channels, the N channels include the M channels, N is a positive integer greater than M; any reference signal resource among the T reference signal resources is used to determine the multi-antenna related parameters of at least one channel among the N channels, the multi-antenna related parameters of any channel among the N channels are determined by one reference signal resource among the T reference signal resources, T is a positive integer greater than 1; which reference signal resource among the T reference signal resources is used to determine the M channels from the N channels by which the multi-antenna related parameters of the N channels are respectively determined.

[0713] As an embodiment, the first signaling is used to indicate the time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than M; the relationship between the bit blocks respectively allocated to the N channels is used to determine the M channels from the N channels.

[0714] As an embodiment, the first signaling is used to indicate the time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than the M; the relationship between the time-frequency resources respectively occupied by the N channels is used to determine the M channels from the N channels.

[0715] As an embodiment, the first receiver 1201 monitors the first type of signaling on the first frequency band; wherein the first signaling is one of the first type of signaling; and the monitoring is performed whenever the first type of signaling is detected.

[0716] As an embodiment, when the first counter reaches or exceeds a target threshold, the first transmitter sends a second signal.

[0717] Example 12

[0718] Embodiment 12 illustrates a structural block diagram of a processing device in a second node device, as shown in the attached figure. Fig.12 As shown in the attached Fig.12 In the embodiment, the second node device processing device 1300 includes a second transmitter 1301 and a second receiver 1302.

[0719] As an embodiment, the second node device 1300 is a user equipment.

[0720] As an embodiment, the second node device 1300 is a base station.

[0721] As an embodiment, the second node device 1300 is a relay node.

[0722] As an embodiment, the second node device 1300 is a vehicle-mounted communication device.

[0723] As an embodiment, the second node device 1300 is a user equipment supporting V2X communication.

[0724] As an embodiment, the second node device 1300 is a relay node supporting V2X communication.

[0725] As an embodiment, the second receiver 1302 includes the attached Figure 4 At least the first two of the antenna 452, receiver 454, multi-antenna receive processor 458, receive processor 456, controller / processor 459, memory 460 and data source 467.

[0726] As an embodiment, the second receiver 1302 includes the attached Figure 4 At least the first two of the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller / processor 475 and the memory 476.

[0727] As an embodiment, the second transmitter 1301 includes the attached Figure 4 At least the first two of the antenna 452, transmitter 454, multi-antenna transmitter processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467.

[0728] As an embodiment, the second transmitter 1301 includes the attached Figure 4At least the first two of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476.

[0729] The second transmitter 1301 sends a first signaling;

[0730] The second receiver 1302 monitors whether a wireless signal is sent on the M channels; when the first monitoring indicates that the first channel is idle, receives a first signal on the first channel;

[0731] In Example 12, the first signaling is used to indicate the time-frequency resources occupied by the M channels, the M channels all belong to the first frequency band in the frequency domain, and M is a positive integer greater than 1; the target receiver of the first signaling performs M monitoring on the first frequency band, the M monitorings correspond one-to-one to the M channels, and the M monitorings respectively indicate whether the corresponding channels are busy; when the M monitorings all indicate that the corresponding channels are busy, the target receiver of the first signaling abandons sending wireless signals on the M channels and starts a first timer and updates the first counter by 1; the first monitoring is one of the M monitorings, and the first channel is a channel among the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used to determine the first bit block.

[0732] As an embodiment, the second receiver 1302 receives a wireless signal on each channel other than the first channel among M1 channels; wherein, M1 monitorings each indicate that the corresponding channel is idle, the M1 monitorings respectively correspond to the M1 channels, the first monitoring is one of the M1 monitorings, any monitoring among the M1 monitorings is one of the M monitorings, any channel among the M1 channels is one of the M channels, and M1 is a positive integer greater than 1 and not greater than M.

[0733] As an embodiment, the first signaling is used to indicate the time-frequency resources occupied by N channels, the N channels include the M channels, N is a positive integer greater than M; any reference signal resource among the T reference signal resources is used to determine the multi-antenna related parameters of at least one channel among the N channels, the multi-antenna related parameters of any channel among the N channels are determined by one reference signal resource among the T reference signal resources, T is a positive integer greater than 1; which reference signal resource among the T reference signal resources is used to determine the M channels from the N channels by which the multi-antenna related parameters of the N channels are respectively determined.

[0734] As an embodiment, the first signaling is used to indicate the time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than M; the relationship between the bit blocks respectively allocated to the N channels is used to determine the M channels from the N channels.

[0735] As an embodiment, the first signaling is used to indicate the time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than the M; the relationship between the time-frequency resources respectively occupied by the N channels is used to determine the M channels from the N channels.

[0736] As an embodiment, the first signaling is a first type of signaling; the monitoring is performed each time the target receiver of the first signaling detects the first type of signaling.

[0737] As an embodiment, the second receiver 1302 receives a second signal; wherein the first counter reaches or exceeds a target threshold.

[0738] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The first node device in the present application includes but is not limited to mobile phones, tablet computers, notebooks, Internet cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, aircraft, airplanes, drones, remote-controlled aircraft and other wireless communication devices. The second node device in the present application includes but is not limited to mobile phones, tablet computers, notebooks, Internet cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, aircraft, airplanes, drones, remote-controlled aircraft and other wireless communication devices. The user equipment or UE or terminal in the present application includes but is not limited to mobile phones, tablet computers, notebooks, Internet cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, aircraft, airplanes, drones, remote-controlled aircraft and other wireless communication devices. The base station equipment or base station or network side equipment in this application includes but is not limited to macrocellular base stations, microcellular base stations, home base stations, relay base stations, eNB, gNB, transmission receiving nodes TRP, GNSS, relay satellites, satellite base stations, aerial base stations and other wireless communication equipment.

[0739] The above is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first node device used for wireless communication, characterized in that: include: A first receiver receives a first signaling; Performing M monitoring on the first frequency band, the M monitorings respectively corresponding to the M channels one by one, and the M monitorings respectively indicating whether the corresponding channels are busy; The first transmitter, when the M monitorings all indicate that the corresponding channels are busy, abandons sending wireless signals on the M channels and starts a first timer and updates the first counter by 1; When the first monitoring indicates that the first channel is idle, sending a first signal on the first channel and maintaining the first counter unchanged; When the first timer expires, resetting the first counter to an initial value; Among them, the first signaling is used to indicate the time-frequency resources occupied by the M channels, the M channels all belong to the first frequency band in the frequency domain, and M is a positive integer greater than 1; the first monitoring is one of the M monitorings, and the first channel is a channel among the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used to determine the first bit block.

2. The first node device according to claim 1, characterized in that: When M1 monitorings all indicate that the corresponding channels are idle, the first transmitter sends a wireless signal on each channel among the M1 channels except the first channel; wherein the M1 monitorings correspond to the M1 channels respectively, the first monitoring is one of the M1 monitorings, any monitoring among the M1 monitorings is one of the M monitorings, any channel among the M1 channels is one of the M channels, and M1 is a positive integer greater than 1 and not greater than M.

3. The first node device according to claim 1 or 2, characterized in that: The first signaling is used to indicate time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than the M; Any reference signal resource among the T reference signal resources is used to determine the multi-antenna related parameters of at least one channel among the N channels, and the multi-antenna related parameters of any channel among the N channels are determined by one reference signal resource among the T reference signal resources, where T is a positive integer greater than 1; which reference signal resource among the T reference signal resources is used to determine the M channels from the N channels by which the multi-antenna related parameters of the N channels are respectively determined.

4. The first node device according to claim 1 or 2, characterized in that: The first signaling is used to indicate the time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than M; the relationship between the bit blocks respectively allocated to the N channels is used to determine the M channels from the N channels.

5. The first node device according to claim 1 or 2, characterized in that: The first signaling is used to indicate the time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than M; the relationship between the time-frequency resources respectively occupied by the N channels is used to determine the M channels from the N channels.

6. The first node device according to any one of claims 1 to 5, characterized in that: The first receiver monitors the first type of signaling on the first frequency band; wherein the first signaling is one of the first type of signaling; and the monitoring is performed whenever the first type of signaling is detected.

7. The first node device according to any one of claims 1 to 6, characterized in that: When the first counter reaches or exceeds a target threshold, the first transmitter sends a second signal.

8. A second node device used for wireless communication, characterized in that: include: A second transmitter sends a first signaling; A second receiver monitors whether a wireless signal is sent on the M channels; When the first monitoring indicates that the first channel is idle, a first signal is received on the first channel; The first signaling is used to indicate the time-frequency resources occupied by the M channels, the M channels all belong to the first frequency band in the frequency domain, and M is a positive integer greater than 1; the target receiver of the first signaling performs M monitoring on the first frequency band, the M monitorings correspond one-to-one to the M channels, and the M monitorings respectively indicate whether the corresponding channels are busy; when the M monitorings all indicate that the corresponding channels are busy, the target receiver of the first signaling abandons sending wireless signals on the M channels and starts a first timer and updates the first counter by 1; The first monitoring is one of the M monitorings, the first channel is a channel among the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used to determine the first bit block.

9. The second node device according to claim 8, characterized in that: The second receiver receives a wireless signal on each channel other than the first channel among M1 channels; wherein, M1 monitorings each indicate that the corresponding channel is idle, the M1 monitorings respectively correspond to the M1 channels, the first monitoring is one of the M1 monitorings, any monitoring among the M1 monitorings is one of the M monitorings, any channel among the M1 channels is one of the M channels, and M1 is a positive integer greater than 1 and not greater than M.

10. The second node device according to claim 8 or 9, characterized in that: The first signaling is used to indicate time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than the M; Any reference signal resource among the T reference signal resources is used to determine the multi-antenna related parameters of at least one channel among the N channels, and the multi-antenna related parameters of any channel among the N channels are determined by one reference signal resource among the T reference signal resources, where T is a positive integer greater than 1; which reference signal resource among the T reference signal resources is used to determine the M channels from the N channels by which the multi-antenna related parameters of the N channels are respectively determined.

11. The second node device according to any one of claims 8 to 10, characterized in that: The first signaling is used to indicate the time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than M; the relationship between the bit blocks respectively allocated to the N channels is used to determine the M channels from the N channels.

12. The second node device according to any one of claims 8 to 11, characterized in that: The first signaling is used to indicate the time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than M; the relationship between the time-frequency resources respectively occupied by the N channels is used to determine the M channels from the N channels.

13. The second node device according to any one of claims 8 to 12, characterized in that: The first signaling is a first type of signaling; the monitoring is performed each time the target receiver of the first signaling detects the first type of signaling.

14. The second node device according to any one of claims 8 to 13, characterized in that: The second receiver receives a second signal; wherein the first counter reaches or exceeds a target threshold.

15. A method in a first node for wireless communication, characterized in that: include: receiving a first signaling; Performing M monitoring on the first frequency band, the M monitorings respectively corresponding to the M channels one by one, and the M monitorings respectively indicating whether the corresponding channels are busy; When the M monitorings all indicate that the corresponding channels are busy, giving up sending wireless signals on the M channels and starting a first timer and updating the first counter by 1; When the first monitoring indicates that the first channel is idle, sending a first signal on the first channel and maintaining the first counter unchanged; When the first timer expires, resetting the first counter to an initial value; Among them, the first signaling is used to indicate the time-frequency resources occupied by the M channels, the M channels all belong to the first frequency band in the frequency domain, and M is a positive integer greater than 1; the first monitoring is one of the M monitorings, and the first channel is a channel among the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used to determine the first bit block.

16. The method in the first node according to claim 15, characterized in that: include: When M1 monitorings all indicate that the corresponding channels are idle, sending a wireless signal on each channel other than the first channel among the M1 channels; Among them, the M1 monitors correspond to the M1 channels respectively, the first monitor is one of the M1 monitors, any monitor in the M1 monitors is one of the M monitors, any channel in the M1 channels is one of the M channels, and M1 is a positive integer greater than 1 and not greater than M.

17. The method in the first node according to claim 15 or 16, characterized in that: The first signaling is used to indicate time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than the M; Any reference signal resource among the T reference signal resources is used to determine the multi-antenna related parameters of at least one channel among the N channels, and the multi-antenna related parameters of any channel among the N channels are determined by one reference signal resource among the T reference signal resources, where T is a positive integer greater than 1; which reference signal resource among the T reference signal resources is used to determine the M channels from the N channels by which the multi-antenna related parameters of the N channels are respectively determined.

18. The method in the first node according to any one of claims 15 to 17, characterized in that: The first signaling is used to indicate the time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than M; the relationship between the bit blocks respectively allocated to the N channels is used to determine the M channels from the N channels.

19. The method in the first node according to any one of claims 15 to 18, characterized in that: The first signaling is used to indicate the time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than M; the relationship between the time-frequency resources respectively occupied by the N channels is used to determine the M channels from the N channels.

20. The method in the first node according to any one of claims 15 to 19, characterized in that: include: The first frequency band is monitored for first-type signaling; wherein the first signaling is one of the first-type signalings; and the monitoring is performed each time the first-type signaling is detected.

21. The method in the first node according to any one of claims 15 to 20, characterized in that: include: When the first counter reaches or exceeds a target threshold, a second signal is sent.

22. A method in a second node for wireless communication, characterized in that: include: Sending a first signaling; Monitor whether a wireless signal is sent on M channels; When the first monitoring indicates that the first channel is idle, a first signal is received on the first channel; The first signaling is used to indicate the time-frequency resources occupied by the M channels, the M channels all belong to the first frequency band in the frequency domain, and M is a positive integer greater than 1; the target receiver of the first signaling performs M monitoring on the first frequency band, the M monitorings correspond one-to-one to the M channels, and the M monitorings respectively indicate whether the corresponding channels are busy; when the M monitorings all indicate that the corresponding channels are busy, the target receiver of the first signaling abandons sending wireless signals on the M channels and starts a first timer and updates the first counter by 1; The first monitoring is one of the M monitorings, the first channel is a channel among the M channels corresponding to the first monitoring; the first signal carries a first bit block, and the first signaling is used to determine the first bit block.

23. The method in the second node according to claim 22, characterized in that: include: receiving a wireless signal on each of the M1 channels other than the first channel; Among them, M1 monitorings all indicate that the corresponding channels are idle, the M1 monitorings correspond to the M1 channels respectively, the first monitoring is one of the M1 monitorings, any monitoring in the M1 monitorings is one of the M monitorings, any channel in the M1 channels is one of the M channels, and M1 is a positive integer greater than 1 and not greater than M.

24. The method in the second node according to claim 22 or 23, characterized in that: The first signaling is used to indicate time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than the M; Any reference signal resource among the T reference signal resources is used to determine the multi-antenna related parameters of at least one channel among the N channels, and the multi-antenna related parameters of any channel among the N channels are determined by one reference signal resource among the T reference signal resources, where T is a positive integer greater than 1; which reference signal resource among the T reference signal resources is used to determine the M channels from the N channels by which the multi-antenna related parameters of the N channels are respectively determined.

25. The method in the second node according to any one of claims 22 to 24, characterized in that: The first signaling is used to indicate the time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than M; the relationship between the bit blocks respectively allocated to the N channels is used to determine the M channels from the N channels.

26. The method in the second node according to any one of claims 22 to 25, characterized in that: The first signaling is used to indicate the time-frequency resources occupied by N channels, where the N channels include the M channels, and N is a positive integer greater than M; the relationship between the time-frequency resources respectively occupied by the N channels is used to determine the M channels from the N channels.

27. The method in the second node according to any one of claims 22 to 26, characterized in that: The first signaling is a first type of signaling; the monitoring is performed each time the target receiver of the first signaling detects the first type of signaling.

28. The method in the second node according to any one of claims 22 to 27, characterized in that: include: receiving a second signal; Wherein, the first counter reaches or exceeds a target threshold.

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