A method and device for user equipment and base station used for wireless communication

Abstract

The present application discloses a method and apparatus in a user equipment and a base station used for wireless communication. As an embodiment, the user equipment receives first information, the first information is used to determine that Q1 sub-bands are reserved in the first time domain resource; monitors in the first time domain sub-resource to determine Q2 sub-bands from Q3 sub-bands; sends second information, the second information is used to indicate the Q2 sub-bands, any sub-band in the Q3 sub-bands is orthogonal to any sub-band in the Q1 sub-bands in the frequency domain; wherein the first carrier includes the Q1 sub-bands and the Q3 sub-bands respectively; the first time domain sub-resource belongs to the first time domain resource. The present application can improve transmission efficiency and spectrum utilization.

Description

[0001] This application is a divisional application of the following original application:

[0002] -- Filing date of original application: 2018.03.26

[0003] --Original application number: 201810254689.9

[0004] --Title of the invention of the original application: A method and apparatus for user equipment and base station used for wireless communication Technical Field

[0005] The present application relates to a transmission method and device in a wireless communication system, and more particularly to a communication method and device supporting LBT (Listen Before Talk). Background Art

[0006] In the future, the application scenarios of wireless communication systems will become more and more diversified, and different application scenarios will put forward different performance requirements for the system. In order to meet the different performance requirements of various application scenarios, the research project on access to unlicensed spectrum under NR (New Radio) was passed at the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #75 plenary meeting.

[0007] In LAA (License Assisted Access) of LTE (Long Term Evolution), the transmitter (base station or user equipment) needs to perform LBT (Listen Before Talk) before sending data on the unlicensed spectrum to ensure that it does not interfere with other wireless transmissions ongoing on the unlicensed spectrum. In the Cat 4 LBT process (the fourth type of LBT, see 3GPP TR36.889), the transmitter must back off after a certain delay period (Defer Duration). The backoff time is counted in CCA (Clear Channel Assessment) time slots, and the number of backed-off time slots is randomly selected by the transmitter within CWS (Contention Window Size). For downlink transmission, CWS is adjusted based on the HARQ (Hybrid Automatic Repeat reQuest) feedback corresponding to the data in a reference sub-frame previously transmitted on the unlicensed spectrum. For uplink transmission, the CWS is adjusted according to whether the data in a previous reference subframe on the unlicensed spectrum includes new data.

[0008] In the existing NR system, since the system bandwidth may become wider, sub-band LBT is proposed, that is, the base station can only monitor and send wireless signals for a part of the frequency band in the LAA carrier bandwidth. Summary of the invention

[0009] The inventors found through research that: for sub-band LBT, the base station may find through LBT that only some of the multiple sub-bands included in an LAA carrier can be used for wireless transmission; if the base station immediately sends wireless signals on the said part of the sub-bands as in the traditional LTE LAA, the base station cannot monitor on the said LAA carrier before the end of MCOT (Maximum Channel Occupation Time), and thus cannot use other sub-bands to send wireless signals. The smaller the proportion of the said part of the sub-bands to all the sub-bands included in the said LAA carrier, the more the above problem leads to a decrease in transmission efficiency.

[0010] In LTE D2D (Device to Device), only uplink subframes or carriers can be allocated to the sidelink to avoid interference from downlink signals. The inventors found through further research that in subband LBT, if the base station only occupies part of the subband of the LAA carrier for downlink transmission, the UE can occupy the subband not occupied by the base station to send or receive D2D signals; therefore, a problem that needs to be solved is how the UE knows the subband occupied by the base station.

[0011] In view of the above findings, the present application discloses a solution. 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. Furthermore, although the original intention of the present application is for LAA communication, the method and apparatus in the present application are also applicable to communication on the authorized spectrum.

[0012] The present application discloses a method in a user equipment used for wireless communication, characterized by comprising:

[0013] receiving first information, wherein the first information is used to determine that Q1 sub-bands are reserved in a first time domain resource;

[0014] Monitoring in the first time domain sub-resource to determine Q2 sub-bands from Q3 sub-bands;

[0015] Sending second information, where the second information is used to indicate that any sub-band of the Q2 sub-bands is orthogonal to any sub-band of the Q1 sub-bands in the frequency domain;

[0016] Among them, the first carrier includes the Q1 sub-band and the Q3 sub-band respectively; the Q1, the Q2 and the Q3 are positive integers respectively; the first time domain sub-resource belongs to the first time domain resource; and the Q3 is not less than the Q2.

[0017] As an embodiment, the Q2 sub-bands are a subset of the Q3 sub-bands.

[0018] As an embodiment, the second information is sent in an uplink channel.

[0019] In the above embodiment, the second information sent by the UE (User Equipment) can assist the base station in determining whether the sub-bands other than the Q1 sub-bands in the first carrier are idle. If the base station determines through the second information that a large number of sub-bands other than the Q1 sub-bands in the first carrier are idle, the base station can terminate the transmission on the Q1 sub-bands in advance (without waiting until the MCOT ends) and start the LBT on the first carrier so as to occupy more sub-bands for transmission as soon as possible.

[0020] As an embodiment, the second information is sent in a side link (SideLink).

[0021] In the above embodiment, the second information sent by the UE can assist other terminals in determining the sub-bands that may be sent on the first carrier (avoiding occupying the Q1 sub-bands), thereby avoiding downlink interference to the communication on the side link.

[0022] Specifically, according to one aspect of the present application, it is characterized in that the second information is used by a receiver of the second information to determine a second time domain sub-resource for performing monitoring on the first carrier.

[0023] As an embodiment, the second information is used by the receiver of the second information to determine a second time domain sub-resource for monitoring on the first carrier, and the receiver of the second information is the sender of the first information.

[0024] Specifically, according to one aspect of the present application, the second information is used by a receiver of the second information to determine a sub-frequency band that may be transmitted on the first carrier.

[0025] As an embodiment, the duration of the second time domain sub-resource is shorter than the duration of a multi-carrier symbol.

[0026] As an embodiment, the duration of the second time domain sub-resource does not exceed 25 microseconds.

[0027] As an embodiment, the second information is used by the receiver of the second information to determine a sub-frequency band that may be transmitted on the first carrier, and the receiver of the second information is a terminal.

[0028] As an embodiment, the sub-frequency bands that may be transmitted on the first carrier include the Q2 sub-frequency bands.

[0029] As an embodiment, the sub-frequency bands that may be transmitted on the first carrier do not include the Q1 sub-frequency bands.

[0030] As an embodiment, the sub-frequency band that may be transmitted on the first carrier does not include a sub-frequency band in the Q3 sub-frequency bands and outside the Q2 sub-frequency bands.

[0031] As an embodiment, the receiver of the second information monitors the sub-frequency bands that may be transmitted on the first carrier to determine that part or all of the sub-frequency bands are wirelessly transmitted.

[0032] Specifically, according to one aspect of the present application, it is characterized by comprising:

[0033] receiving third information, wherein the third information is used to indicate Q4 sub-bands;

[0034] The Q3 sub-frequency bands are composed of all the sub-frequency bands in the Q4 sub-frequency bands that do not belong to the Q1 sub-frequency bands, and Q4 is a positive integer.

[0035] Specifically, according to one aspect of the present application, it is characterized by comprising:

[0036] receiving fourth information, wherein the fourth information is used to determine the first threshold;

[0037] The Q2 sub-frequency bands are composed of all sub-frequency bands whose monitored energies are lower than the first threshold among the Q3 sub-frequency bands.

[0038] Specifically, according to one aspect of the present application, it is characterized by comprising:

[0039] Receiving a first wireless signal on Q5 sub-bands in the first carrier;

[0040] The second information is used by the sender of the first wireless signal to determine the Q5 sub-frequency bands; the sender of the first wireless signal is a terminal, or the sender of the first wireless signal is the sender of the first information; and Q5 is a positive integer.

[0041] Specifically, according to one aspect of the present application, it is characterized in that the Q3 is greater than 1; on the Q3 sub-bands, Q3 time slots are respectively used for monitoring to determine the Q2 sub-bands; the Q3 time slots all belong to the first time domain sub-resource; and there are at least two time slots in the Q3 time slots that do not completely overlap.

[0042] The present application discloses a method in a user equipment used for wireless communication, characterized by comprising:

[0043] receiving second information, where the second information is used to indicate Q2 sub-frequency bands, where the Q2 sub-frequency bands all belong to the first carrier;

[0044] Sending a first wireless signal on Q5 sub-bands in a first carrier;

[0045] The second information is used to determine the Q5 sub-frequency bands; the sender of the second information is a terminal, and Q2 and Q5 are positive integers respectively.

[0046] Specifically, according to one aspect of the present application, it is characterized in that the second information is used to determine the cut-off time of the first time domain resource; the Q1 subbands in the first time domain resource are indicated as reserved by the first information, and the first information is used by the sender of the second information to determine the Q2 subbands from the Q3 subbands; any subband in the Q3 subbands is orthogonal to any subband in the Q1 subbands in the frequency domain; the first carrier includes the Q1 subbands and the Q3 subbands, respectively; the Q1 and the Q3 are positive integers, respectively, and the Q3 is not less than the Q2.

[0047] As an embodiment, the sender of the second information is a terminal.

[0048] As an embodiment, the first wireless signal is sent in the first time domain resource.

[0049] As an embodiment, the user equipment receives the first wireless signal in the first time domain resource.

[0050] Specifically, according to one aspect of the present application, it is characterized by comprising:

[0051] monitoring the Q2 sub-frequency bands to determine the Q5 sub-frequency bands therefrom;

[0052] The energy detected on each of the Q5 sub-frequency bands does not exceed a second threshold.

[0053] The present application discloses a method used in a base station for wireless communication, characterized by comprising:

[0054] Sending first information, where the first information is used to determine that Q1 sub-frequency bands are reserved in a first time domain resource;

[0055] receiving second information, wherein the second information is used to indicate Q2 sub-frequency bands;

[0056] Among them, the first information is used to determine the Q2 sub-bands from Q3 sub-bands, any sub-band of the Q3 sub-bands is orthogonal to any sub-band of the Q1 sub-bands in the frequency domain; the first carrier includes the Q1 sub-bands and the Q3 sub-bands respectively; the Q1, the Q2 and the Q3 are positive integers respectively; the first time domain sub-resource belongs to the first time domain resource; the Q3 is not less than the Q2.

[0057] Specifically, according to one aspect of the present application, it is characterized by comprising:

[0058] Monitoring a second time domain sub-resource on the first carrier to determine Q5 sub-frequency bands;

[0059] Sending a first wireless signal on the Q5 sub-frequency bands;

[0060] The second information is used to determine the second time domain sub-resource.

[0061] Specifically, according to one aspect of the present application, it is characterized by comprising:

[0062] Sending third information, where the third information is used to indicate Q4 sub-frequency bands;

[0063] The Q3 sub-frequency bands are composed of all the sub-frequency bands in the Q4 sub-frequency bands that do not belong to the Q1 sub-frequency bands, and Q4 is a positive integer.

[0064] Specifically, according to one aspect of the present application, it is characterized by comprising:

[0065] sending fourth information, wherein the fourth information is used to determine the first threshold;

[0066] The Q2 sub-frequency bands are composed of all sub-frequency bands whose monitored energies are lower than the first threshold among the Q3 sub-frequency bands.

[0067] Specifically, according to one aspect of the present application, it is characterized in that the Q3 is greater than 1; on the Q3 sub-bands, Q3 time slots are respectively used for monitoring to determine the Q2 sub-bands; the Q3 time slots all belong to the first time domain sub-resource; at least two time slots in the Q3 time slots do not completely overlap

[0068] The present application discloses a user equipment used for wireless communication, characterized in that it includes:

[0069] A first receiving module: receiving first information, where the first information is used to determine that Q1 sub-frequency bands are reserved in the first time domain resource;

[0070] A first monitoring module: monitoring in a first time domain sub-resource to determine Q2 sub-bands from Q3 sub-bands;

[0071] A first sending module: sending second information, where the second information is used to indicate that the Q2 sub-frequency bands, any sub-frequency band in the Q3 sub-frequency bands and any sub-frequency band in the Q1 sub-frequency bands are orthogonal in the frequency domain;

[0072] Among them, the first carrier includes the Q1 sub-band and the Q3 sub-band respectively; the Q1, the Q2 and the Q3 are positive integers respectively; the first time domain sub-resource belongs to the first time domain resource; and the Q3 is not less than the Q2.

[0073] As an embodiment, the above user equipment is characterized by including:

[0074] A second receiving module: receiving third information, where the third information is used to indicate Q4 sub-frequency bands;

[0075] The Q3 sub-frequency bands are composed of all the sub-frequency bands in the Q4 sub-frequency bands that do not belong to the Q1 sub-frequency bands, and Q4 is a positive integer.

[0076] As an embodiment, the above-mentioned user equipment is characterized in that the second information is used by the receiver of the second information to determine the second time domain sub-resource for performing monitoring on the first carrier; or, the second information is used by the receiver of the second information to determine the sub-frequency band that may be transmitted on the first carrier.

[0077] As an embodiment, the user equipment is characterized in that, including:

[0078] A second receiving module: receiving fourth information, where the fourth information is used to determine the first threshold;

[0079] The Q2 sub-frequency bands are composed of all sub-frequency bands whose monitored energies are lower than the first threshold among the Q3 sub-frequency bands.

[0080] As an embodiment, the user equipment is characterized in that, including:

[0081] A second receiving module: receiving a first wireless signal on Q5 sub-bands in the first carrier;

[0082] The second information is used by the sender of the first wireless signal to determine the Q5 sub-frequency bands; the sender of the first wireless signal is a terminal, or the sender of the first wireless signal is the sender of the first information; and Q5 is a positive integer.

[0083] As an embodiment, the above-mentioned user equipment is characterized in that the Q3 is greater than 1; on the Q3 sub-bands, Q3 time slots are respectively used for monitoring to determine the Q2 sub-bands; the Q3 time slots all belong to the first time domain sub-resource; and there are at least two time slots in the Q3 time slots that do not completely overlap.

[0084] The present application discloses a user equipment used for wireless communication, characterized in that it includes:

[0085] A third receiving module: receiving second information, where the second information is used to indicate Q2 sub-frequency bands, where the Q2 sub-frequency bands all belong to the first carrier;

[0086] A third sending module: sending a first wireless signal on Q5 sub-bands in the first carrier;

[0087] The second information is used to determine the Q5 sub-frequency bands; the sender of the second information is a terminal, and Q2 and Q5 are positive integers respectively.

[0088] As an embodiment, the above-mentioned user equipment is characterized in that the second information is used to determine the cut-off time of the first time domain resource; the Q1 subbands in the first time domain resource are indicated as reserved by the first information, and the first information is used by the sender of the second information to determine the Q2 subbands from the Q3 subbands; any subband in the Q3 subbands is orthogonal to any subband in the Q1 subbands in the frequency domain; the first carrier includes the Q1 subbands and the Q3 subbands respectively; the Q1 and the Q3 are positive integers respectively, and the Q3 is not less than the Q2.

[0089] As an embodiment, the above user equipment is characterized by including:

[0090] A second monitoring module: monitoring in the Q2 sub-frequency bands to determine the Q5 sub-frequency bands therefrom;

[0091] The energy detected on each of the Q5 sub-frequency bands does not exceed a second threshold.

[0092] The present application discloses a base station device used for wireless communication, characterized in that it includes:

[0093] A second sending module: sending first information, where the first information is used to determine that Q1 sub-frequency bands are reserved in the first time domain resource;

[0094] A fourth receiving module: receiving second information, where the second information is used to indicate Q2 sub-frequency bands;

[0095] Among them, the first information is used to determine the Q2 sub-bands from Q3 sub-bands, any sub-band of the Q3 sub-bands is orthogonal to any sub-band of the Q1 sub-bands in the frequency domain; the first carrier includes the Q1 sub-bands and the Q3 sub-bands respectively; the Q1, the Q2 and the Q3 are positive integers respectively; the first time domain sub-resource belongs to the first time domain resource; the Q3 is not less than the Q2.

[0096] As an embodiment, the above base station device is characterized by comprising:

[0097] A third monitoring module: monitoring the second time domain sub-resource on the first carrier to determine Q5 sub-frequency bands;

[0098] Fourth sending module: sending the first wireless signal on the Q5 sub-frequency bands;

[0099] The second information is used to determine the second time domain sub-resource.

[0100] As an embodiment, the above base station device is characterized by comprising:

[0101] The fourth sending module is used to send third information, where the third information is used to indicate Q4 sub-frequency bands; wherein the Q3 sub-frequency bands are composed of all the sub-frequency bands in the Q4 sub-frequency bands that do not belong to the Q1 sub-frequency band, and Q4 is a positive integer.

[0102] As an embodiment, the above base station device is characterized by comprising:

[0103] The fourth sending module is used to send fourth information, where the fourth information is used to determine the first threshold; wherein the Q2 sub-frequency bands are composed of all sub-frequency bands in the Q3 sub-frequency bands whose monitored energies are lower than the first threshold.

[0104] As an embodiment, the above-mentioned base station device is characterized in that Q3 is greater than 1; on the Q3 sub-bands, Q3 time slots are respectively used for monitoring to determine the Q2 sub-bands; the Q3 time slots all belong to the first time domain sub-resource; at least two time slots in the Q3 time slots do not completely overlap

[0105] As an embodiment, compared with the traditional solution, this application has the following advantages:

[0106] -. Once a sub-band is found to be idle, the base station can quickly occupy the channel and perform wireless transmission to obtain as many transmission opportunities as possible; at the same time, the base station can promptly occupy more sub-bands for downlink transmission based on UE feedback to improve transmission efficiency;

[0107] -. Allow D2D users to communicate using sub-bands not occupied by base stations, thus improving transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0108] 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:

[0109] Figure 1 A processing flow chart of a user equipment side according to an embodiment of the present application is shown;

[0110] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0111] Figure 3 A schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0112] Figure 4 A schematic diagram of an NR (New Radio) node and a UE according to an embodiment of the present application is shown;

[0113] Figure 5 A flowchart of downlink transmission according to an embodiment of the present application is shown;

[0114] Figure 6 A flow chart of D2D transmission according to an embodiment of the present application is shown;

[0115] Figure 7 A flowchart of using the second type of information to assist in performing LBT according to an embodiment of the present application is shown;

[0116] Figure 8 A schematic diagram showing a first wireless signal transmission according to an embodiment of the present application is shown;

[0117] Fig. 9 A schematic diagram showing a base station performing LBT according to an embodiment of the present application is shown;

[0118] Fig.10 A schematic diagram showing a first wireless signal transmission according to yet another embodiment of the present application is shown;

[0119] Fig.11 A schematic diagram showing monitoring on sub-band #i and sub-band #j according to an embodiment of the present application is shown;

[0120] Fig.12 A structural block diagram of a processing device in a user equipment according to an embodiment of the present application is shown;

[0121] Fig.13 A structural block diagram of a processing device in a user equipment according to another embodiment of the present application is shown;

[0122] Fig.14 A structural block diagram of a processing device in a base station device according to an embodiment of the present application is shown;

[0123] Fig.15 A flowchart of determining if a target sub-band is idle according to an embodiment of the present application is shown.

[0124] Example 1

[0125] Embodiment 1 illustrates a processing flow chart of the user equipment side, as shown in the attached Figure 1 shown.

[0126] In embodiment 1, the user equipment first receives first information, where the first information is used to determine that Q1 sub-bands are reserved in the first time domain resource; then monitors in the first time domain sub-resource to determine Q2 sub-bands from Q3 sub-bands; then sends second information, where the second information is used to indicate the Q2 sub-bands, where any sub-band in the Q3 sub-bands is orthogonal to any sub-band in the Q1 sub-band in the frequency domain;

[0127] In Embodiment 1, the first carrier includes the Q1 sub-band and the Q3 sub-band respectively; the Q1, the Q2 and the Q3 are positive integers respectively; the first time domain sub-resource belongs to the first time domain resource; and the Q3 is not less than the Q2.

[0128] As an embodiment, the first information is carried by a physical layer signaling.

[0129] As an embodiment, the first information is carried by a DCI (Downlink Control Information).

[0130] As an embodiment, the first information is transmitted on a PDCCH (Physical Downlink Control CHannel).

[0131] As an embodiment, the first information is broadcast.

[0132] As an embodiment, the first information is common to the cell.

[0133] As an embodiment, the first information is a field in a DCI.

[0134] As an embodiment, the first information is MAC (Medium Access Control) layer signaling.

[0135] As an embodiment, the second information is physical layer signaling.

[0136] As an embodiment, the second information is transmitted on PUCCH (Physical Uplink Control Channel).

[0137] As an embodiment, the second information is transmitted on PUSCH (Physical Uplink Shared Channel).

[0138] As an embodiment, the second information is transmitted on a Sidelink.

[0139] As an embodiment, the second information is transmitted on PSCCH (Physical Sidelink Control Channel).

[0140] As an embodiment, the second information is transmitted on PSSCH (Physical Sidelink Shared Channel).

[0141] As an embodiment, the second information is transmitted on PSBCH (Physical Sidelink Broadcast Channel).

[0142] As an embodiment, the first information and the second information are both dynamically indicated.

[0143] As an embodiment, the first time domain resource includes a positive integer number of multi-carrier symbols in the time domain.

[0144] As an embodiment, the first time domain resource includes a positive integer number of continuous multi-carrier symbols in the time domain.

[0145] As an embodiment, the first time domain sub-resource includes a positive integer number of continuous multi-carrier symbols in the time domain.

[0146] As an embodiment, the duration of the first time domain resource in the time domain is less than the duration of one multi-carrier symbol.

[0147] As an embodiment, the duration of the first time domain sub-resource does not exceed 25 microseconds.

[0148] As an embodiment, the first time-frequency resource includes multiple REs (Resource Element), and the RE occupies a multi-carrier symbol in the time domain and occupies a subcarrier in the frequency domain.

[0149] As an embodiment, the multi-carrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0150] As an embodiment, the multi-carrier symbol is a SC-FDMA (Single Carrier Frequency Division Multiplexing Access) symbol.

[0151] As an embodiment, the multi-carrier symbol is a FBMC (Filter Bank Multi-Carrier) symbol.

[0152] As an embodiment, the first carrier consists of the Q1 sub-frequency bands and the Q3 sub-frequency bands.

[0153] As an embodiment, the first carrier includes at least one sub-band that is orthogonal to any sub-band in the Q1 sub-bands and is orthogonal to any sub-band in the Q3 sub-bands.

[0154] As an embodiment, bandwidths of all the sub-bands in the Q1 sub-bands and the Q3 sub-bands are the same.

[0155] As an embodiment, the frequency domain resources occupied by any sub-band among the Q1 sub-bands and the Q3 sub-bands are continuous in the frequency domain.

[0156] As an embodiment, the user equipment assumes based on the first information that the Q1 sub-frequency bands are occupied by the sender of the first information in the first time domain resources.

[0157] As an embodiment, the user equipment assumes based on the first information that unless the sender of the first information performs LBT (Listen Before Talk) on the first carrier in the first time domain resource, the sender of the first information stops sending on the Q1 sub-band at the termination time of the first time domain resource.

[0158] As an embodiment, the first information indicates that the first time domain resource is the current MCOT (Maximum Channel Occupation Time), that is, the maximum time that the first carrier can be currently occupied by the sender of the first information at one time. MCOT is usually subject to regulations.

[0159] As an embodiment, the sender of the first information is a serving cell.

[0160] As an embodiment, the sender of the first information is a serving cell.

[0161] As an embodiment, the sender of the first information is a base station device.

[0162] As an embodiment, the second information is used to indicate the cut-off time of the first time domain resource.

[0163] As an embodiment, the second information is used to indicate the starting time and duration of the first time domain resource.

[0164] As an embodiment, the first carrier includes Q sub-frequency bands, and the Q1 sub-frequency bands and the Q2 sub-frequency bands are subsets of the Q sub-frequency bands, respectively.

[0165] As an embodiment, the first information indicates the Q1 sub-frequency bands.

[0166] As an embodiment, the first information implicitly indicates the Q1 sub-frequency bands.

[0167] As an embodiment, the first carrier is deployed in an unlicensed spectrum.

[0168] As an embodiment, the first information is sent on the first carrier.

[0169] As an embodiment, the first information is sent on a second carrier, and the second carrier and the first carrier are orthogonal in the frequency domain (ie, there is no overlap).

[0170] As an embodiment, the second information is sent on a second carrier, and the second carrier and the first carrier are orthogonal in the frequency domain (ie, there is no overlap).

[0171] As an embodiment, the first information is transmitted on PUCCH.

[0172] As an embodiment, the first information is uplink signaling.

[0173] As an embodiment, the monitoring behavior includes energy detection.

[0174] As an embodiment, the monitoring behavior includes sequence decorrelation.

[0175] As an embodiment, the monitoring behavior includes CRC (Cyclic Redundancy Check) detection.

[0176] As an embodiment, the second information indicates the Q2 sub-frequency bands from the Q3 sub-frequency bands.

[0177] As an embodiment, the first carrier includes Q sub-frequency bands, the Q1 sub-frequency band and the Q3 sub-frequency band are subsets of the Q sub-frequency bands, respectively, and the second information indicates the Q2 sub-frequency band from the Q sub-frequency bands.

[0178] As an embodiment, in the monitoring behavior, the energy detected on each of the Q2 sub-frequency bands does not exceed a first threshold.

[0179] As an embodiment, the Q2 sub-frequency bands include all sub-frequency bands among the Q3 sub-frequency bands whose monitored energies are lower than the first threshold.

[0180] As an embodiment, the first threshold is configurable.

[0181] As an embodiment, the first threshold is fixed (ie, not configurable).

[0182] As an embodiment, the first threshold is predefined.

[0183] As an embodiment, the unit of the first threshold is dBm (millidecibels).

[0184] As an embodiment, the unit of the first threshold is mW (milliwatt).

[0185] As an embodiment, the bandwidths of the Q sub-frequency bands are all the same.

[0186] As an embodiment, at least two sub-frequency bands among the Q sub-frequency bands have different bandwidths.

[0187] As an embodiment, the Q sub-bands are Q BWPs (BandWidth Part, bandwidth components) respectively.

[0188] As an embodiment, each of the Q sub-bands includes a positive integer number of RBs (Resource Blocks) that are continuous in the frequency domain, and the RB is composed of 12 sub-carriers that are continuous in the frequency domain.

[0189] Example 2

[0190] Example 2 illustrates a schematic diagram of a network architecture, as shown in the attached Figure 2 shown.

[0191] Attached Figure 2The network architecture 200 of LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced) and future 5G systems is illustrated. The LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200. EPS 200 may include one or more UEs (User Equipment) 201, E-UTRAN-NR (Evolved UMTS Terrestrial Radio Access Network - New Radio) 202, 5G-CN (5G-Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) 220 and Internet service 230. Among them, UMTS corresponds to Universal Mobile Telecommunications System. EPS 200 can be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the attached figure Figure 2As shown, EPS200 provides packet switching services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks that provide circuit switching services. E-UTRAN-NR202 includes NR (New Radio) Node B (gNB) 203 and other gNBs 204. gNB203 provides user and control plane protocol terminations toward UE201. gNB203 can be connected to other gNBs 204 via an X2 interface (e.g., backhaul). gNB203 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 point), or some other suitable term. gNB203 provides an access point to 5G-CN / EPC210 for UE201. Examples of UE 201 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network 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. gNB203 is connected to 5G-CN / EPC210 via the S1 interface. 5G-CN / EPC210 includes MME 211, other MME214, S-GW (Service Gateway) 212 and P-GW (Packet Data Network Gateway) 213. MME211 is a control node that handles signaling between UE201 and 5G-CN / EPC210. ​​Generally, MME211 provides bearer and connection management. All user IP (Internet Protocol) 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. Internet service 230 includes operator-corresponding Internet protocol services, which may specifically include Internet, intranet, IMS (IP Multimedia Subsystem) and PS streaming service (PSS).

[0192] As an embodiment, the UE201 corresponds to the user equipment in this application.

[0193] As an embodiment, the gNB203 corresponds to the base station in this application.

[0194] As a sub-embodiment, the UE 201 supports wireless communication for data transmission in an unlicensed spectrum.

[0195] As a sub-embodiment, the gNB203 supports wireless communications for data transmission on an unlicensed spectrum.

[0196] As a sub-embodiment, the UE 201 supports D2D communication.

[0197] As a sub-embodiment, the gNB203 supports D2D communication.

[0198] Example 3

[0199] Embodiment 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane, as shown in the attached figure. Figure 3 shown.

[0200] Attached Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane and a control plane, Figure 3The radio protocol architecture for the UE and gNB is shown in 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 PHY 301 herein. Layer 2 (L2 layer) 305 is above PHY 301 and is responsible for the link between the UE and the gNB through PHY 301. In the user plane, 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 gNB on the network side. Although not shown, the UE may have several protocol layers above the L2 layer 305, including a network layer (e.g., IP layer) that terminates at the P-GW 213 on the network side and an application layer that terminates at the other end of the connection (e.g., a remote UE, a server, etc.). The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides header compression for upper layer data packets to reduce radio transmission overhead, provides security by encrypting data packets, and provides handover support for UEs between gNBs. 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 (Hybrid Automatic Repeat reQuest). 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 UEs. The MAC sublayer 302 is also responsible for HARQ operations. In the control plane, the radio protocol architecture for UEs and gNBs is substantially the same for the physical layer 301 and the L2 layer 305, but there is no header compression function for the control plane. The control plane also includes an RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3 layer). The RRC sublayer 306 is responsible for obtaining radio resources (ie, radio bearers) and configuring lower layers using RRC signaling between the gNB and the UE.

[0201] As an example, Figure 3 The wireless protocol architecture in is applicable to the user equipment in this application.

[0202] As an example, Figure 3 The wireless protocol architecture in is applicable to the base station equipment in this application.

[0203] As an embodiment, the first information in the present application is generated by the PHY301.

[0204] As an embodiment, the second information in the present application is generated by the PHY301.

[0205] As an embodiment, the physical layer signaling in the present application is generated in the PHY301.

[0206] As an embodiment, the third information in the present application is generated in the MAC sublayer 302.

[0207] As an embodiment, the fourth information in the present application is generated in the MAC sublayer 302.

[0208] As an embodiment, the third information in the present application is generated in the RRC sublayer 306.

[0209] As an embodiment, the fourth information in the present application is generated in the RRC sublayer 306.

[0210] As an embodiment, the physical layer signaling group in the present application is generated in the PHY301.

[0211] As an embodiment, the RRC signaling in the present application is generated in the RRC sublayer 306.

[0212] Example 4

[0213] Embodiment 4 illustrates a schematic diagram of an NR node and a UE, as shown in the attached Figure 4 Attached Figure 4 is a block diagram of UE450 and gNB410 communicating with each other in an access network.

[0214] gNB410 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.

[0215] UE 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 .

[0216] In DL (Downlink), at gNB410, 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 DL, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to UE450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to UE450. 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 UE450, 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 / 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 it 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, which is then provided to different antennas 420.

[0217] In DL (Downlink), at UE450, 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, where 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 UE450. The symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the gNB 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 DL, the controller / processor 459 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover 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 the L3 for L3 processing. The controller / processor 459 is also responsible for error detection using an acknowledgment (ACK) and / or negative acknowledgment (NACK) protocol to support HARQ operations.

[0218] In UL (Uplink), at UE450, 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 gNB410 described in DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of gNB410, and implements L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to gNB410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding / beamforming processing. The transmit processor 468 then modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream, which is 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.

[0219] In the UL (Uplink), the functions at the gNB 410 are similar to the receiving functions at the UE 450 described in the DL. 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 receive processor 472 and the receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 jointly implement the functions of the L1 layer. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 storing program codes and data. The memory 476 may be referred to as a computer-readable medium. In the UL, the controller / processor 475 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the UE 450. The upper layer data packets from the controller / processor 475 may be provided to the core network. The controller / processor 475 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operations.

[0220] As an embodiment, the UE450 includes: at least one processor and at least one memory, 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 UE450 device at least: receives first information, the first information is used to determine that Q1 sub-bands are reserved in the first time domain resource; monitors in the first time domain sub-resource to determine Q2 sub-bands from Q3 sub-bands; sends second information, the second information is used to indicate the Q2 sub-bands, any sub-band in the Q3 sub-bands is orthogonal to any sub-band in the Q1 sub-bands in the frequency domain; wherein the first carrier includes the Q1 sub-bands and the Q3 sub-bands respectively; the Q1, Q2 and Q3 are positive integers respectively; the first time domain sub-resource belongs to the first time domain resource; the Q3 is not less than the Q2.

[0221] As an embodiment, the UE450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates actions when executed by at least one processor, the actions including: receiving first information, the first information being used to determine that Q1 sub-bands are reserved in the first time domain resources; listening in the first time domain sub-resource to determine Q2 sub-bands from Q3 sub-bands; sending second information, the second information being used to indicate the Q2 sub-bands, any sub-band of the Q3 sub-bands being orthogonal to any sub-band of the Q1 sub-bands in the frequency domain; wherein the first carrier includes the Q1 sub-bands and the Q3 sub-bands, respectively; the Q1, the Q2 and the Q3 are respectively positive integers; the first time domain sub-resource belongs to the first time domain resource; the Q3 is not less than the Q2.

[0222] As an embodiment, the gNB410 includes: at least one processor and at least one memory, 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 gNB410 device at least: sends first information, the first information is used to determine that Q1 sub-bands are reserved in the first time domain resource; receives second information, the second information is used to indicate Q2 sub-bands; wherein the first information is used to determine the Q2 sub-band from Q3 sub-bands, any sub-band in the Q3 sub-bands is orthogonal to any sub-band in the Q1 sub-bands in the frequency domain; the first carrier includes the Q1 sub-band and the Q3 sub-band respectively; the Q1, Q2 and Q3 are positive integers respectively; the first time domain sub-resource belongs to the first time domain resource; the Q3 is not less than the Q2.

[0223] As an embodiment, the gNB410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: sending first information, wherein the first information is used to determine that Q1 sub-bands are reserved in the first time domain resources; receiving second information, wherein the second information is used to indicate Q2 sub-bands; wherein the first information is used to determine the Q2 sub-bands from Q3 sub-bands, and any sub-band of the Q3 sub-bands is orthogonal to any sub-band of the Q1 sub-bands in the frequency domain; the first carrier includes the Q1 sub-bands and the Q3 sub-bands respectively; the Q1, the Q2 and the Q3 are respectively positive integers; the first time domain sub-resource belongs to the first time domain resource; the Q3 is not less than the Q2.

[0224] As an embodiment, the UE450 corresponds to the user equipment in this application.

[0225] As an embodiment, the gNB410 corresponds to the base station in this application.

[0226] As an embodiment, {the antenna 452, the receiver 454, the receiving processor 456} is used to receive the first information in the present application; at least one of {the antenna 420, the transmitter 418, the transmitting processor 416} is used to send the first information in the present application.

[0227] As an embodiment, at least one of {the multi-antenna receiving processor 458, the controller / processor 459} is used to receive the first information in the present application; at least one of {the multi-antenna transmitting processor 471, the controller / processor 475} is used to send the first information in the present application.

[0228] As an embodiment, {the antenna 420, the receiver 418, the receiving processor 470} is used to receive the second information in the present application; {the antenna 452, the transmitter 454, the transmitting processor 468} is used to send the second information in the present application.

[0229] As an embodiment, at least one of {the multi-antenna receiving processor 472, the controller / processor 475} is used to receive the second information in the present application; at least one of {the multi-antenna transmitting processor 457, the controller / processor 459} is used to send the second information in the present application.

[0230] As an embodiment, {the antenna 420, the receiver 418, the transmitting processor 471, the controller / processor 475} is used to send the first wireless signal in the present application; {the antenna 452, the transmitter 454, the receiving processor 456, the controller / processor 459} is used to receive the first wireless signal in the present application.

[0231] As an embodiment, the multi-antenna receiving processor 472 is used to send the first wireless signal in the present application; the multi-antenna transmitting processor 457 is used to receive the first wireless signal in the present application.

[0232] As an embodiment, at least one of {the antenna 420, the receiver 418, the receiving processor 470, the multi-antenna transmitting processor 471, and the controller / processor 475} is used to send the third information in the present application; at least one of {the antenna 452, the transmitter 454, the receiving processor 456, the multi-antenna transmitting processor 457, and the controller / processor 459} is used to receive the third information in the present application.

[0233] As an embodiment, at least one of {the antenna 420, the receiver 418, the receiving processor 470, the multi-antenna transmitting processor 471, and the controller / processor 475} is used to send the fourth information in the present application; at least one of {the antenna 452, the transmitter 454, the receiving processor 456, the multi-antenna transmitting processor 457, and the controller / processor 459} is used to receive the fourth information in the present application.

[0234] As an embodiment, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, and the controller / processor 459} is used for the measurement behavior performed on the UE side in the present application.

[0235] As an embodiment, at least one of {the antenna 420, the receiver 418, the receiving processor 470, the multi-antenna receiving processor 472, and the controller / processor 475} is used to receive the measurement behavior performed on the base station side in the present application.

[0236] Although attached Figure 4 The original intention is to describe NR nodes and UE nodes, Figure 4It is also applicable to describing two terminals in D2D communication, as long as the above-mentioned UE450 and gNB410 are regarded as two UEs and the base station-specific functions in the above-mentioned gNB410 are deleted, such as radio resource allocation and communication with the core network, etc.

[0237] Example 5

[0238] Embodiment 5 illustrates a flow chart of wireless transmission, as shown in the attached Figure 5 As shown, the steps included in blocks F1, F2 and F3 are optional. Figure 5 In the example, the base station N1 is a base station maintaining a serving cell of the user equipment U2.

[0239] For N1, in step S11, a configuration information group is sent; in step S12, first information is sent; in step S13, second information is received; in step S14, a second time domain sub-resource on the first carrier is monitored to determine Q5 sub-frequency bands, and the second information is used to determine the second time domain sub-resource; in step S15, a first wireless signal is sent on the Q5 sub-frequency bands;

[0240] For U2, in step S21, the configuration information group is received; in step S22, the first information is received; in step S23, the first time domain sub-resource is monitored to determine Q2 sub-bands from Q3 sub-bands; in step S24, the second information is sent; in step S25, the first wireless signal is received;

[0241] In Example 5, the configuration information group includes first information; the first information is used to determine that Q1 sub-bands are reserved in the first time domain resources; the second information is used to indicate that the Q2 sub-bands, any sub-band of the Q3 sub-bands is orthogonal to any sub-band of the Q1 sub-band in the frequency domain; the first carrier includes the Q1 sub-band and the Q3 sub-bands respectively; the Q1, the Q2 and the Q3 are positive integers respectively; the first time domain sub-resource belongs to the first time domain resource; the Q3 is not less than the Q2.

[0242] As an embodiment, UE U2 does not perform monitoring on the Q1 sub-frequency bands in the first time domain sub-resource in step S23.

[0243] As an embodiment, the first information and the second information are transmitted on PDCCH and PUCCH respectively.

[0244] As an embodiment, the first information and the second information are transmitted on PDCCH and PUSCH respectively.

[0245] As an embodiment, the first information and the second information are transmitted on ePDCCH (enhanced PDCCH) and PUCCH respectively.

[0246] As an embodiment, the first information and the second information are transmitted on PDCCH and PSCCH respectively.

[0247] As an embodiment, the first information and the second information are transmitted on PDCCH and PSBCH respectively.

[0248] As an embodiment, the first carrier is deployed in an unlicensed spectrum.

[0249] As an embodiment, the first information and the second information are both sent on a licensed spectrum.

[0250] As an embodiment, the first information is sent on a first carrier, and the first carrier is deployed in an unlicensed spectrum; the second information is sent on a licensed spectrum.

[0251] As an embodiment, the first wireless signal is sent on a PDSCH (Physical Downlink Shared CHannel).

[0252] As an embodiment, the first wireless signal is sent on PSSCH.

[0253] As an embodiment, the first wireless signal is the output of the first bit block after it passes through channel coding (ChannelCoding), scrambling (Scrambling), modulation mapper (Modulation Mapper), layer mapper (LayerMapper), precoding (Precoding), resource element mapper (Resource Element Mapper), and broadband symbol generation (Generation).

[0254] As an embodiment, the first wireless signal is the output of the first bit block after channel coding (ChannelCoding), scrambling (Scrambling), modulation mapper (Modulation Mapper), resource element mapper (Resource Element Mapper), and broadband symbol generation (Generation).

[0255] As an embodiment, the first bit block includes a TB (Transport Block).

[0256] As an embodiment, the first bit block includes one or more CBGs (Code Block Groups).

[0257] As an embodiment, the configuration information group includes third information, and the third information is used to indicate Q4 sub-bands; wherein the Q3 sub-bands are composed of all sub-bands in the Q4 sub-bands that do not belong to the Q1 sub-bands, and Q4 is a positive integer.

[0258] As an embodiment, the second information indicates the Q2 sub-frequency bands from the Q4 sub-frequency bands.

[0259] As an embodiment, the second information consists of Q4 bits, the Q4 bits correspond one-to-one to the Q4 sub-frequency bands, and only Q2 bits of the Q4 bits are 1; the sub-frequency bands corresponding to the Q2 bits constitute the Q2 sub-frequency bands.

[0260] Compared with indicating the Q2 sub-frequency bands from all the sub-frequency bands on the entire first carrier, the above embodiment can reduce the air interface resources occupied by the second information and improve transmission efficiency.

[0261] As an embodiment, the Q4 is 1, and the second information is sent only when the Q4 sub-bands are orthogonal to any of the Q1 sub-bands (ie, there is no overlap in the frequency domain).

[0262] The above embodiments are particularly applicable to terminals with limited RF (Radio Frequency) capabilities.

[0263] As an embodiment, the second information indicates the Q2 sub-frequency bands from the Q3 sub-frequency bands.

[0264] The above embodiment can further reduce the air interface resources occupied by the second information. However, when the first information cannot be correctly decoded, the above embodiment may cause confusion.

[0265] As an embodiment, the third information is semi-statically configured.

[0266] As an embodiment, the third information is RRC (Radio Resource Control) signaling.

[0267] As an embodiment, the third information is dedicated to UE U2.

[0268] As an embodiment, the configuration information group includes fourth information, and the fourth information is used to determine the first threshold; wherein the Q2 sub-bands are composed of all sub-bands among the Q3 sub-bands whose monitored energy is lower than the first threshold.

[0269] As an embodiment, the fourth information is semi-statically configured.

[0270] As an embodiment, the fourth information is RRC signaling.

[0271] As an embodiment, the fourth information indicates the first threshold.

[0272] As an embodiment, the fourth information indicates one or more parameters required to generate the first threshold.

[0273] As an embodiment, the fourth information is common to the cell.

[0274] As an embodiment, the fourth information is specific to the first carrier.

[0275] As an embodiment, the unit of the first threshold is dBm (millidecibels).

[0276] As an embodiment, for any sub-band among the Q3 sub-bands, if the energy monitored by UE U2 in the first time domain sub-resource on the corresponding frequency domain resource is lower than the first threshold, UE U2 counts any sub-band into one of the Q2 sub-bands.

[0277] As an embodiment, the energy monitored in the first time domain sub-resource on the corresponding frequency domain resource is based on EIRP (Effective Isotropic Radiated Power).

[0278] As an embodiment, the energy monitored in the first time domain sub-resource on the corresponding frequency domain resource includes a receive beamforming gain.

[0279] As an embodiment, the energy monitored in the first time domain sub-resource on the corresponding frequency domain resource does not include a receive beamforming gain.

[0280] As an embodiment, the first wireless signal includes V sub-signals, and the V sub-signals are respectively for V terminals; UE U2 is one of the V terminals, and UE U2 only receives a sub-signal corresponding to itself in the first wireless signal; V is a positive integer greater than 1.

[0281] As an embodiment, the V sub-signals are FDM (Frequency Division Multiplexing).

[0282] As an embodiment, at least two sub-signals among the V sub-signals are SDM (Spatial Division Multiplexing).

[0283] As an embodiment, the first information is a DCI identified by a CC-RNTI (Cell Common Radio Network Temporary Identifier).

[0284] As an embodiment, in step S14, the base station N1 performs monitoring operations in all sub-frequency bands in the first carrier respectively, that is, sub-band-based LBT.

[0285] As an embodiment, in step S14, the monitoring behavior performed by the base station N1 is based on EIRP.

[0286] As an embodiment, in step S14, the monitoring behavior performed by the base station N1 includes receiving beamforming gain.

[0287] As an embodiment, in step S14, the monitoring behavior performed by the base station N1 does not include receiving beamforming gain.

[0288] As an embodiment, the first wireless signal is transmitted in the first time domain resource.

[0289] The essence of the above embodiment is that the base station N1 terminates the transmission on the Q1 sub-bands in advance according to the second information, and re-executes LBT on the first carrier to select more sub-bands for downlink transmission, thereby improving system capacity.

[0290] As an embodiment, the Q5 sub-bands are a subset of the Q2 sub-bands, and Q5 is a positive integer not greater than Q2.

[0291] As an embodiment, the duration of the second time domain sub-resource is shorter than the duration of a multi-carrier symbol.

[0292] As an embodiment, the duration of the second time domain sub-resource does not exceed 25 microseconds.

[0293] As an embodiment, the second information is used by the receiver of the second information to determine a second time domain sub-resource for monitoring on the first carrier, and the receiver of the second information is the sender of the first information.

[0294] As an embodiment, the second information is used to determine the second time domain sub-resource

[0295] As an embodiment, the second information is used to determine to terminate the transmission on the Q1 sub-frequency bands;

[0296] As an embodiment, the second time domain sub-resource is within the first time domain resource.

[0297] As an embodiment, the first wireless signal is transmitted in the first time domain resource.

[0298] As an embodiment, the Q5 sub-bands include one or more subsets of the Q2 sub-bands, and Q5 is a positive integer not greater than Q2.

[0299] Example 6

[0300] Embodiment 6 illustrates a flow chart of D2D transmission, as shown in the attached Figure 6 As shown, the steps included in box F4 are optional.

[0301] In Embodiment 6, UE U3 and UE U4 are two UEs performing D2D communication.

[0302] U3 sends second information in step S31, where the second information is used to indicate Q2 sub-frequency bands, where the Q2 sub-frequency bands all belong to the first carrier; and receives a first wireless signal on Q5 sub-frequency bands in the first carrier in step S32;

[0303] U4 receives the second information in step S41; in step S42, it listens in the Q2 sub-bands to determine the Q5 sub-bands therefrom, and the energy detected on each of the Q5 sub-bands does not exceed the second threshold; in step S43, it sends a first wireless signal on the Q5 sub-bands in the first carrier.

[0304] In Embodiment 6, the second information is used to determine the Q5 sub-frequency bands; the sender of the second information is a terminal, and Q2 and Q5 are positive integers respectively.

[0305] In Embodiment 6, the second information assists UE U4 in selecting a suitable sub-frequency band to send the first wireless signal to avoid interference with the downlink signal.

[0306] As an embodiment, the Q5 sub-bands are a subset of the Q2 sub-bands, and Q5 is a positive integer not greater than Q2.

[0307] As an embodiment, the second information is used to indicate the cut-off time of the first time domain resource.

[0308] As an embodiment, the second information is used to indicate the starting time and duration of the first time domain resource.

[0309] As an embodiment, the second threshold is configurable.

[0310] As an embodiment, the second threshold is fixed.

[0311] As an embodiment, all sub-frequency bands in which the detected energy of the Q2 sub-frequency bands does not exceed the second threshold constitute the Q5 sub-frequency bands.

[0312] As an embodiment, the unit of the second threshold is the same as the unit of the first threshold in the present application.

[0313] As an embodiment, the second threshold is different from the first threshold in the present application.

[0314] As an embodiment, in the step S42, the monitoring behavior of UE U4 in each of the Q2 sub-bands is Category 4 LBT.

[0315] As an embodiment, in the step S42, the monitoring behavior of the UE U4 in each of the Q2 sub-bands is Category 2 LBT.

[0316] As an embodiment, in the step S42, the monitoring behavior of UE U4 in each of the Q2 sub-bands is based on EIRP.

[0317] As an embodiment, in the step S42, the monitoring behavior of UE U4 in each of the Q2 sub-bands includes beamforming gain.

[0318] As an embodiment, the second information is used to determine the cut-off time of the first time domain resource; the Q1 subbands in the first time domain resource are indicated as reserved by the first information, and the first information is used by UE U3 to determine the Q2 subbands from the Q3 subbands; any subband in the Q3 subbands is orthogonal to any subband in the Q1 subbands in the frequency domain; the first carrier includes the Q1 subbands and the Q3 subbands, respectively; the Q1 and the Q3 are positive integers, respectively, and the Q3 is not less than the Q2.

[0319] Example 7

[0320] Embodiment 7 illustrates a flowchart of using the second type of information to assist in performing LBT, as shown in the attached Figure 7 Attached Figure 7 The steps in are executed in the base station device.

[0321] In step S100, the base station device sends a wireless signal in the first time domain resource of Q1 sub-bands; in step S101, the second type of information sent by one or more UEs is received, wherein the second type of information sent by one UE is the second information in the present application; in step S102, the base station device determines whether to perform LBT on the first carrier based on the collected second type of information; if not, in step S103, it is determined whether the current continuous transmission time on the Q1 sub-bands reaches MCOT, if not, it continues to determine whether to perform LBT on the first carrier based on the collected second type of information in step S102; if it is determined in step S102 that LBT is to be performed on the first carrier or if it is determined in step S103 that the current transmission on the Q1 sub-bands reaches MCOT, in step S104, it is monitored on the first carrier to determine Q5 sub-bands; and in step S105, a first wireless signal is sent on the Q5 sub-bands.

[0322] In Example 7, if the base station device determines in step S102 that LBT is performed on the first carrier and the current continuous transmission time on the Q1 sub-band has not reached MCOT, the base station device immediately terminates the transmission on the Q1 sub-band without waiting for the transmission time to reach MCOT, and performs a monitoring operation in the second time-frequency sub-resource to determine the Q5 sub-bands, the second time-frequency sub-resource belongs to the current MCOT in the time domain (that is, the time interval from the current transmission start time of the base station device on the Q1 sub-band is less than MCOT), and the time domain resources occupied by the first wireless signal also belong to the current MCOT.

[0323] As an embodiment, the base station device sends a wireless signal in part of the multi-carrier symbols in the first time domain resources of Q1 sub-frequency bands, the second time-frequency sub-resources belong to the first time domain resources in the time domain, and the time domain resources occupied by the first wireless signal also belong to the first time domain resources.

[0324] As an embodiment, in the step S104, the base station device performs an LBT operation on each sub-band in the first carrier, and all sub-bands that are considered idle constitute the Q5 sub-bands.

[0325] As an embodiment, in step S102, the base station device collects the second type of information reported by multiple UEs. If the second type of information exceeding the first percentage indicates that the number of idle sub-bands on the first carrier is greater than the second percentage, the base station device determines to perform LBT on the first carrier; otherwise, the base station device determines not to perform LBT on the first carrier.

[0326] As an embodiment, the first percentage is 100%, and the second percentage is greater than a quotient obtained by dividing Q1 by Q, where Q is the number of sub-bands included in the first carrier.

[0327] As an embodiment, in step S102, the base station device only collects the second type of information reported by one UE, namely, the second information; if the Q2 (idle) subbands indicated by the second information include all subbands on the first carrier except the Q1 subbands, the base station device determines to perform LBT on the first carrier, otherwise the base station device determines not to perform LBT on the first carrier.

[0328] As an embodiment, the duration of the second time domain sub-resource is shorter than the duration of a multi-carrier symbol.

[0329] As an embodiment, the duration of the second time domain sub-resource does not exceed 25 microseconds.

[0330] Example 8

[0331] Embodiment 8 illustrates a schematic diagram of the first wireless signal transmission, as shown in the attached Figure 8 shown.

[0332] In Embodiment 8, the first carrier consists of Q sub-bands, namely, sub-bands #1, #2, #3, ..., #Q; the base station device transmits a wireless signal only in sub-band #2 of the Q sub-bands in the first time slot, as shown in the attached Figure 8 As shown in the bold box on the left; in the second time domain sub-resource, the base station device performs an LBT operation to determine that all sub-bands of the first carrier are idle, and then sends a first wireless signal on all sub-bands on the first carrier, as shown in the attached Figure 8 As shown in the thick line frame on the edge.

[0333] In Embodiment 8, the second information received by the base station device before the second time domain sub-resource is used to trigger the LBT operation.

[0334] In Example 8, the base station device occupies the sub-band #2 from the starting time of the first time slot, and the interval between the second time domain sub-resource and the first wireless signal in the time domain and the starting time of the first time slot is less than MCOT (that is, the second time domain sub-resource and the first wireless signal are both transmitted in the current MCOT).

[0335] In Example 8, the base station device promptly terminates the transmission on sub-band #2, and then sends a wireless signal on the entire first carrier; compared with the base station device occupying only sub-band #2 for transmission in the current MCOT, Example 8 improves the transmission efficiency.

[0336] As an embodiment, the MCOT is not less than 4 milliseconds.

[0337] As an embodiment, the MCOT is not less than 8 milliseconds.

[0338] As an embodiment, the MCOT is related to the subcarrier spacing of the current first carrier.

[0339] As an embodiment, the first time slot is the first time domain resource in the present application.

[0340] As an embodiment, the current MCOT is the first time domain resource in this application.

[0341] Example 9

[0342] Embodiment 9 illustrates a schematic diagram of a base station performing LBT; Fig. 9 Attached Fig. 9 In the figure, the squares filled with oblique lines and the squares filled with cross lines respectively indicate the first monitoring area and the second monitoring area.

[0343] In Example 9, the area marked by the bold frame is the time-frequency resources occupied by the base station device to send wireless signals, and the UE performs monitoring on the frequency domain resources (i.e., the first monitoring area) other than those occupied by the base station device on the first carrier in the first time domain sub-resource; and then sends second information on the second carrier to indicate Q2 idle sub-bands.

[0344] The base station receives second-type information on the second carrier before the second time domain sub-resource, wherein one second-type information is the second information; and then performs LBT operation on the first carrier in the second time domain sub-resource (ie, the second monitoring area).

[0345] As an embodiment, the first carrier and the second carrier are deployed in an unlicensed spectrum and a licensed spectrum, respectively.

[0346] In the above embodiment, the sending of the second information does not need to go through LBT, thereby ensuring low latency and ensuring that the base station can execute LBT as early as possible, thereby improving transmission efficiency.

[0347] Example 10

[0348] Embodiment 10 illustrates a schematic diagram of the first wireless signal transmission, as shown in the attached Fig.10 Attached Fig.10 In FIG. 1 , the square filled with diagonal lines indicates the first monitoring area, and the square framed with thick lines indicates the time-frequency resources occupied by the first wireless signal. Fig.10 Suitable for D2D communication.

[0349] In Embodiment 10, the first UE and the second UE are two UEs performing D2D communication.

[0350] In the attached Fig.10 In the method, the service cell maintained by the base station sends wireless signals only on Q1 sub-bands of the first carrier; the first UE performs monitoring on a first monitoring area other than the Q1 sub-bands in the first carrier to determine Q2 sub-bands, and the first monitoring area occupies a first time domain sub-resource in the time domain; the first UE sends second information to indicate the Q2 sub-bands;

[0351] The second UE receives the second information to determine the Q2 sub-frequency bands; the second UE selects Q5 sub-frequency bands from the Q2 sub-frequency bands to send a first wireless signal; and the first UE receives the first wireless signal on the Q5 sub-frequency band.

[0352] As an embodiment, the second information is sent on PSBCH, and the first wireless signal is sent on PSCCH and PSSCH.

[0353] Embodiment 11

[0354] Embodiment 11 illustrates a schematic diagram of performing monitoring on sub-band #i and sub-band #j, as shown in the attached figure. Fig.11 Attached Fig.11 In the figure, the squares filled with horizontal lines indicate the third monitoring area, and the squares filled with vertical lines indicate the fourth monitoring area.

[0355] In Example 11, subband #i and subband #j are two subbands in the first carrier, in the target time domain sub-resources; the receiver performs monitoring only in the third monitoring area in subband #i, and performs monitoring only in the fourth monitoring area in subband #j; the time domain resources occupied by the third monitoring area are discrete, and the time domain resources occupied by the fourth monitoring area are continuous.

[0356] As an embodiment, the target time domain sub-resource is the first time domain sub-resource in the present application, and the receiver is a device on the UE side.

[0357] As an embodiment, the target time domain sub-resource is the second time domain sub-resource in the present application, and the receiver is a device on the base station side.

[0358] As an embodiment, the monitoring behavior performed in the third monitoring area is type 2 LBT.

[0359] As an embodiment, the monitoring behavior performed in the third monitoring area is type 4 LBT.

[0360] As an embodiment, the sub-band #i and the sub-band #j are two sub-bands among the Q3 sub-bands in the present application; the Q3 is greater than 1; on the Q3 sub-bands, Q3 time slots are respectively used for monitoring to determine the Q2 sub-bands; the Q3 time slots all belong to the first time domain sub-resources; there are at least two time slots in the Q3 time slots that do not completely overlap; the time domain resources occupied by the third monitoring area and the time domain resources occupied by the fourth monitoring area respectively correspond to two time slots among the Q3 time slots.

[0361] As an embodiment, the user equipment monitors in Q3 time slots respectively to determine the Q2 sub-frequency bands.

[0362] As an embodiment, the Q3 time slots are configurable.

[0363] As an embodiment, only when the starting time, duration and end time of a time slot are the same as those of another time slot, the time slot can be said to completely overlap with the other time slot.

[0364] As an embodiment, the duration of the Q3 time slots is configurable.

[0365] As an embodiment, for any sub-band among the Q3 sub-bands, if it is spatially correlated with at least one sub-band among the Q1 sub-bands in the present application, the duration of the time slot among the Q3 time slots corresponding to the any sub-band is the first time length; otherwise, the duration of the time slot among the Q3 time slots corresponding to the any sub-band is the second time length.

[0366] As an embodiment, whether any of the sub-frequency bands is spatially correlated with at least one of the Q1 sub-frequency bands is configurable.

[0367] As an embodiment, the spatial correlation is QCL (Quasi Co-Located).

[0368] As an embodiment, if a reception parameter of the user equipment on one sub-frequency band is spatially correlated with a reception parameter of another sub-frequency band, the first sub-frequency band is considered to be spatially correlated with the another sub-frequency band.

[0369] Example 12

[0370] Embodiment 12 illustrates a structural block diagram of a processing device in a user equipment, as shown in the attached Fig.12 In embodiment 12, the user equipment 1200 includes a second receiving module 1204, a first receiving module 1201, a first monitoring module 1202 and a first sending module 1203; wherein the second receiving module 1204 is optional.

[0371] In embodiment 12, the first receiving module 1201 receives first information, where the first information is used to determine that Q1 sub-bands are reserved in the first time domain resource; the first monitoring module 1202 monitors in the first time domain sub-resource to determine Q2 sub-bands from Q3 sub-bands; the first sending module 1203 sends second information, where the second information is used to indicate the Q2 sub-bands, any sub-band in the Q3 sub-bands is orthogonal to any sub-band in the Q1 sub-band in the frequency domain;

[0372] In Example 12, the first carrier includes the Q1 sub-band and the Q3 sub-band respectively; the Q1, the Q2 and the Q3 are positive integers respectively; the first time domain sub-resource belongs to the first time domain resource; and the Q3 is not less than the Q2.

[0373] As an embodiment, the second receiving module 1204 receives third information, and the third information is used to indicate Q4 sub-bands; wherein the Q3 sub-bands are composed of all sub-bands in the Q4 sub-bands that do not belong to the Q1 sub-band, and Q4 is a positive integer.

[0374] As an embodiment, the second receiving module 1204 receives fourth information, and the fourth information is used to determine the first threshold; wherein the Q2 sub-bands are composed of all sub-bands among the Q3 sub-bands whose monitored energy is lower than the first threshold.

[0375] As an embodiment, the second receiving module 1204 receives a first wireless signal on Q5 sub-bands in the first carrier; wherein the second information is used by the sender of the first wireless signal to determine the Q5 sub-bands; the sender of the first wireless signal is a terminal, or the sender of the first wireless signal is the sender of the first information; and Q5 is a positive integer.

[0376] The second receiving module 1204, the first receiving module 1201, the first monitoring module 1202 and the first sending module 1203

[0377] As an embodiment, the first receiving module 1201 includes an attached Figure 4 The antenna 452, the receiver 454, and the receiving processor 456.

[0378] As an embodiment, the first receiving module 1201 includes an attached Figure 4 At least one of the multi-antenna receive processor 458 and the controller / processor 459.

[0379] As an embodiment, the first monitoring module 1202 includes an additional Figure 4 The antenna 452, the receiver 454, and the receiving processor 456.

[0380] As an embodiment, the first sending module 1203 includes an attached Figure 4 The antenna 452, the transmitter 454, and the transmit processor 468.

[0381] As an embodiment, the first sending module 1203 includes an attached Figure 4 At least one of the multi-antenna transmit processor 457 and the controller / processor 459.

[0382] As an embodiment, the second receiving module 1204 includes an attached Figure 4 The antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458 and the controller / processor 459.

[0383] Embodiment 13

[0384] Embodiment 13 illustrates a structural block diagram of a processing device in another user equipment, as shown in the attached figure. Fig.13 In embodiment 13, the user equipment 1300 includes a third receiving module 1301, a second monitoring module 1302 and a third sending module 1303; wherein the third sending module 1303 is optional.

[0385] In Embodiment 13, the third receiving module 1301 receives second information, where the second information is used to indicate Q2 sub-frequency bands, where the Q2 sub-frequency bands all belong to the first carrier; the second monitoring module 1302 monitors the Q2 sub-frequency bands to determine the Q5 sub-frequency bands therefrom; and the third sending module 1203 sends a first wireless signal on the Q5 sub-frequency bands in the first carrier;

[0386] In Example 13, the second information is used to determine the Q5 sub-bands; the sender of the second information is a terminal, the Q2 and the Q5 are positive integers, and the energy detected on each of the Q5 sub-bands does not exceed a second threshold.

[0387] As an embodiment, the third receiving module 1301 includes an attached Figure 4 The antenna 452, the receiver 454, and the receiving processor 456.

[0388] As an embodiment, the third receiving module 1301 includes an attached Figure 4 At least one of the multi-antenna receive processor 458 and the controller / processor 459.

[0389] As an embodiment, the second monitoring module 1302 includes an additional Figure 4 The antenna 452, the receiver 454, and the receiving processor 456.

[0390] As an embodiment, the third sending module 1303 includes an attached Figure 4 The antenna 452, the transmitter 454, and the transmit processor 468.

[0391] As an embodiment, the third sending module 1303 includes an attached Figure 4 At least one of the multi-antenna transmit processor 457 and the controller / processor 459.

[0392] Embodiment 14

[0393] Embodiment 14 illustrates a structural block diagram of a processing device in a base station device, as shown in the attached figure. Fig.14 In embodiment 14, the base station device 1400 includes a fourth sending module 1404, a second sending module 1401, a fourth receiving module 1402 and a third monitoring module 1403; wherein the fourth sending module 1404 is optional.

[0394] In Embodiment 14, the second sending module 1401 sends first information, where the first information is used to determine that Q1 sub-bands are reserved in the first time domain resources; the fourth receiving module 1402 receives second information, where the second information is used to indicate Q2 sub-bands; the third monitoring module 1403 monitors the second time domain sub-resource on the first carrier to determine Q5 sub-bands; the fourth sending module 1404 sends a first wireless signal on the Q5 sub-band;

[0395] In Example 14, the first information is used to determine the Q2 sub-bands from Q3 sub-bands, and any sub-band of the Q3 sub-bands is orthogonal to any sub-band of the Q1 sub-bands in the frequency domain; the first carrier includes the Q1 sub-bands and the Q3 sub-bands, respectively; the Q1, the Q2 and the Q3 are positive integers, respectively; the first time domain sub-resource belongs to the first time domain resource; the Q3 is not less than the Q2, and the second information is used to determine the second time domain sub-resource.

[0396] As an embodiment, the second sending module 1401 includes an attached Figure 4 The antenna 420, the transmitter 418, and the transmit processor 416.

[0397] As an embodiment, the second sending module 1401 includes an attached Figure 4 The multi-antenna transmit processor 471 and the controller / processor 475.

[0398] As an embodiment, the fourth receiving module 1402 includes an attached Figure 4 The antenna 420, the receiver 418, and the receiving processor 470.

[0399] As an embodiment, the fourth receiving module 1402 includes an attached Figure 4 The multi-antenna receive processor 472 and the controller / processor 475 in.

[0400] As an embodiment, the third monitoring module 1403 includes the following Figure 4 The antenna 420, the receiver 418, and the receiving processor 470.

[0401] As an embodiment, the third monitoring module 1403 includes the following Figure 4 The multi-antenna receive processor 472 and the controller / processor 475 in.

[0402] As an embodiment, the fourth sending module 1404 includes an attached Figure 4 The antenna 420, the receiver 418, the transmit processor 416, and the controller / processor 475.

[0403] As an embodiment, the fourth sending module 1404 includes an attached Figure 4 The multi-antenna transmit processor 471 in.

[0404] As an embodiment, the duration of the second time domain sub-resource is shorter than the duration of a multi-carrier symbol.

[0405] As an embodiment, the duration of the second time domain sub-resource does not exceed 25 microseconds.

[0406] As an embodiment, the second information is used by a receiver of the second information to determine a second time domain sub-resource for performing monitoring on the first carrier, and the receiver of the second information is a sender of the first information.

[0407] Embodiment 15

[0408] Embodiment 15 illustrates a flowchart for determining whether a target sub-band is idle, as shown in the attached figure. Fig.15 As shown, the step in box F5 is optional.

[0409] In Embodiment 15, the receiver performs R measurements in the R time sub-pools respectively. The energy detection in the present application includes the R measurements.

[0410] The receiver performs the R measurements in the R time sub-pools respectively and obtains R measured power values. R1 measured power values ​​of the R measured power values ​​are all lower than a specific threshold. The R1 time sub-pools are the time sub-pools in the R time sub-pools corresponding to the R1 measured power values ​​respectively. The process of the R measurements can be performed by the attached Fig.15 The flowchart in is described.

[0411] The receiver is in an idle state in step S1101; in step 1103, an energy detection is performed within a delay period (defer duration) of the target sub-band; in step S1104, it is determined whether all time slots within the delay period are idle, and if so, the first wireless signal is sent in step S1105; otherwise, the energy detection is performed within a delay period of the target sub-band in step S1106; in step S1107, it is determined whether all time slots within the delay period are idle, and if so, the first counter is set to R1 in step S1108; otherwise, the return is made to step S1106; in step S1109, it is determined whether the first counter is 0, and if so, the return is made to step S1108. Send a first wireless signal in step S1105; otherwise, proceed to step S1110 to perform energy detection in an additional time slot period of the target sub-band; determine in step S1111 whether the additional time slot period is idle, if so, proceed to step S1112 to reduce the first counter by 1, and then return to step 1109; otherwise, proceed to step S1113 to perform energy detection in an additional delay period of the target sub-band; determine in step S1114 whether all time slot periods in the additional delay period are idle, if so, proceed to step S1112; otherwise, return to step S1113.

[0412] As an embodiment, the R1 is equal to 0, and the receiver determines in the step S1104 that all time slots within the delay period are idle.

[0413] As an embodiment, the units of the R measured power values ​​and the specific threshold are both dBm (millidecibels).

[0414] As an embodiment, the units of the R measured power values ​​and the specific threshold are both milliwatts (mW).

[0415] As an embodiment, the units of the R measured power values ​​and the specific threshold are both joules.

[0416] As an embodiment, the specific threshold is equal to or less than -72dBm.

[0417] As an embodiment, the durations of the R time sub-pools are the same.

[0418] As an embodiment, the duration of any time sub-pool in the R time sub-pools does not exceed 25 microseconds.

[0419] As an embodiment, the duration of any time sub-pool in the R time sub-pools does not exceed 34 microseconds.

[0420] As an embodiment, the duration of any time sub-pool in the R time sub-pools does not exceed 9 microseconds.

[0421] As an embodiment, the duration of any time sub-pool in the R time sub-pools does not exceed 16 microseconds.

[0422] As an embodiment, the receiver is attached Fig.12 In the first monitoring module 1202, the specific threshold is the first threshold in this application.

[0423] As an embodiment, the receiver is attached Fig.13 The second monitoring module 1302 in.

[0424] As an embodiment, the receiver is attached Fig.14 In the third monitoring module 1403, the specific threshold is the second threshold in this application.

[0425] As an embodiment, the target sub-band is a sub-band in the first carrier in the present application.

[0426] 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 user equipment, terminal and UE in the present application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, wireless sensors, Internet cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication, Machine Type Communication) terminals, eMTC (enhanced MTC, enhanced MTC) terminals, data cards, Internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication devices. The base stations or system devices in this application include but are not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B) NR Node B, TRP (Transmitter Receiver Point) and other wireless communication devices.

[0427] 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 method in a user equipment for wireless communication, characterized in that: include: receiving first information, wherein the first information is used to determine that Q1 sub-bands are reserved in a first time domain resource; Monitoring in the first time domain sub-resource to determine Q2 sub-bands from Q3 sub-bands; Sending second information, where the second information is used to indicate that any sub-band of the Q2 sub-bands is orthogonal to any sub-band of the Q1 sub-bands in the frequency domain; Among them, the first carrier includes the Q1 sub-band and the Q3 sub-band respectively; the Q1, the Q2 and the Q3 are positive integers respectively; the first time domain sub-resource belongs to the first time domain resource; the Q3 is not less than the Q2; the second information is used by the receiver of the second information to determine the second time domain sub-resource for monitoring on the first carrier; or, the second information is used by the receiver of the second information to determine the sub-band that may be sent on the first carrier; the Q2 sub-bands are a subset of the Q3 sub-bands; the second information is sent in the uplink channel.

2. The method in user equipment used for wireless communication according to claim 1, characterized in that: include: receiving third information, wherein the third information is used to indicate Q4 sub-bands; The Q3 sub-frequency bands are composed of all the sub-frequency bands in the Q4 sub-frequency bands that do not belong to the Q1 sub-frequency bands, and Q4 is a positive integer.

3. The method in user equipment used for wireless communication according to claim 1, characterized in that: include: receiving fourth information, wherein the fourth information is used to determine the first threshold; The Q2 sub-frequency bands are composed of all sub-frequency bands whose monitored energies are lower than the first threshold among the Q3 sub-frequency bands.

4. The method in a user equipment used for wireless communication according to any one of claims 1 to 3, characterized in that: include: Receiving a first wireless signal on Q5 sub-bands in the first carrier; The second information is used by the sender of the first wireless signal to determine the Q5 sub-frequency bands; the sender of the first wireless signal is a terminal, or the sender of the first wireless signal is the sender of the first information; The Q5 is a positive integer.

5. The method in a user equipment used for wireless communication according to any one of claims 1 to 3, characterized in that: The Q3 is greater than 1; on the Q3 sub-bands, Q3 time slots are respectively used for monitoring to determine the Q2 sub-bands; the Q3 time slots all belong to the first time domain sub-resource; and there are at least two time slots in the Q3 time slots that do not completely overlap.

6. The method in a user equipment used for wireless communication according to any one of claims 1 to 3, characterized in that: The first information is carried by a downlink control information.

7. A method used in a base station for wireless communication, characterized in that: include: Sending first information, where the first information is used to determine that Q1 sub-frequency bands are reserved in a first time domain resource; receiving second information, wherein the second information is used to indicate Q2 sub-frequency bands; The first information is used to determine the Q2 sub-bands from Q3 sub-bands, and any sub-band of the Q3 sub-bands is orthogonal to any sub-band of the Q1 sub-bands in the frequency domain; the first carrier includes the Q1 sub-bands and the Q3 sub-bands respectively; the Q1, the Q2 and the Q3 are positive integers respectively; the Q3 is not less than the Q2; the second information is used by the receiver of the second information to determine the second time domain sub-resource for monitoring on the first carrier; or the second information is used by the receiver of the second information to determine the sub-band that may be sent on the first carrier; The Q2 sub-frequency bands are a subset of the Q3 sub-frequency bands; the second information is sent in an uplink channel, and the first information is carried by a downlink control information.

8. The method in a base station for wireless communication according to claim 7, characterized in that: include: Sending third information, where the third information is used to indicate Q4 sub-frequency bands; The Q3 sub-frequency bands are composed of all the sub-frequency bands in the Q4 sub-frequency bands that do not belong to the Q1 sub-frequency bands, and Q4 is a positive integer.

9. The method in a base station for wireless communication according to claim 7, characterized in that: include: sending fourth information, wherein the fourth information is used to determine the first threshold; The Q2 sub-frequency bands are composed of all sub-frequency bands whose monitored energies are lower than the first threshold among the Q3 sub-frequency bands.

10. The method in a base station used for wireless communication according to any one of claims 7 to 9, characterized in that: include: Sending a first wireless signal on Q5 sub-bands in the first carrier; The second information is used by the base station to determine the Q5 sub-frequency bands; The Q5 is a positive integer.

11. A user equipment used for wireless communication, characterized in that: include: A first receiving module receives first information, where the first information is used to determine that Q1 sub-frequency bands are reserved in a first time domain resource; A first monitoring module, monitoring in a first time domain sub-resource to determine Q2 sub-frequency bands from Q3 sub-frequency bands; A first sending module is configured to send second information, where the second information is used to indicate that any sub-band of the Q2 sub-bands is orthogonal to any sub-band of the Q1 sub-band in the frequency domain; Among them, the first carrier includes the Q1 sub-band and the Q3 sub-band respectively; the Q1, the Q2 and the Q3 are positive integers respectively; the first time domain sub-resource belongs to the first time domain resource; the Q3 is not less than the Q2; the second information is used by the receiver of the second information to determine the second time domain sub-resource for monitoring on the first carrier; or, the second information is used by the receiver of the second information to determine the sub-band that may be sent on the first carrier; the Q2 sub-bands are a subset of the Q3 sub-bands; the second information is sent in the uplink channel.

12. The user equipment according to claim 11, characterized in that The method comprises a second receiving module, receiving third information, wherein the third information is used to indicate Q4 sub-frequency bands; The Q3 sub-frequency bands are composed of all the sub-frequency bands in the Q4 sub-frequency bands that do not belong to the Q1 sub-frequency bands, and Q4 is a positive integer.

13. The user equipment according to claim 11, characterized in that The method comprises a second receiving module, receiving fourth information, wherein the fourth information is used to determine the first threshold; The Q2 sub-frequency bands are composed of all sub-frequency bands whose monitored energies are lower than the first threshold among the Q3 sub-frequency bands.

14. The user equipment according to any one of claims 11 to 13, characterized in that: comprising a second receiving module, receiving a first wireless signal on Q5 sub-bands in the first carrier; The second information is used by the sender of the first wireless signal to determine the Q5 sub-frequency bands; the sender of the first wireless signal is a terminal, or the sender of the first wireless signal is the sender of the first information; and Q5 is a positive integer.

15. The user equipment according to any one of claims 11 to 13, characterized in that: The Q3 is greater than 1; on the Q3 sub-bands, Q3 time slots are respectively used for monitoring to determine the Q2 sub-bands; the Q3 time slots all belong to the first time domain sub-resource; and there are at least two time slots in the Q3 time slots that do not completely overlap.

16. The user equipment according to any one of claims 11 to 13, characterized in that: The first information is carried by a downlink control information.

17. A base station device used for wireless communication, characterized in that: include: A second sending module is configured to send first information, where the first information is used to determine that Q1 sub-frequency bands are reserved in the first time domain resource; A fourth receiving module receives second information, where the second information is used to indicate Q2 sub-frequency bands; The first information is used to determine the Q2 sub-bands from Q3 sub-bands, and any sub-band of the Q3 sub-bands is orthogonal to any sub-band of the Q1 sub-bands in the frequency domain; the first carrier includes the Q1 sub-bands and the Q3 sub-bands respectively; the Q1, the Q2 and the Q3 are positive integers respectively; the Q3 is not less than the Q2; the second information is used by the receiver of the second information to determine the second time domain sub-resource for monitoring on the first carrier; or the second information is used by the receiver of the second information to determine the sub-band that may be sent on the first carrier; The Q2 sub-frequency bands are a subset of the Q3 sub-frequency bands; the second information is sent in an uplink channel, and the first information is carried by a downlink control information.

18. The base station device according to claim 17, characterized in that: comprising a fourth sending module, sending third information, wherein the third information is used to indicate Q4 sub-frequency bands; The Q3 sub-frequency bands are composed of all the sub-frequency bands in the Q4 sub-frequency bands that do not belong to the Q1 sub-frequency bands, and Q4 is a positive integer.

19. The base station device according to claim 17, characterized in that: comprising a fourth sending module, sending fourth information, wherein the fourth information is used to determine the first threshold; The Q2 sub-frequency bands are composed of all sub-frequency bands whose monitored energies are lower than the first threshold among the Q3 sub-frequency bands.

20. The base station device according to any one of claims 17 to 19, characterized in that: comprising a fourth sending module, for sending a first wireless signal on Q5 sub-bands in the first carrier; The second information is used by the base station device to determine the Q5 sub-frequency bands; and Q5 is a positive integer.

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