Data transmission method, device, related equipment and storage medium

Abstract

The present invention discloses a data transmission method, device and related equipment. The method includes one of the following: performing LBT on multiple uplink frequency domain resources, sending data on one uplink frequency domain resource, and receiving data on one downlink frequency domain resource; performing LBT on multiple uplink frequency domain resources, sending data on one uplink frequency domain resource, and receiving data on multiple downlink frequency domain resources; performing LBT on multiple uplink frequency domain resources, sending data on multiple uplink frequency domain resources, and receiving data on multiple downlink frequency domain resources; performing LBT on multiple uplink frequency domain resources, sending data on multiple uplink frequency domain resources, and receiving data on one downlink frequency domain resource; performing LBT on one uplink frequency domain resource, sending data on one uplink frequency domain resource, and receiving data on one downlink frequency domain resource; performing LBT on one uplink frequency domain resource, sending data on one uplink frequency domain resource, and receiving data on multiple downlink frequency domain resources.

Description

Technical Field

[0001] The present invention relates to the field of wireless communications, and in particular to a data transmission method, device, related equipment and storage medium. Background Art

[0002] When the fifth-generation mobile communication technology (5G) New Radio (NR) system works independently in the unlicensed spectrum, it needs to listen before talk (LBT) because it involves coexistence with WIFI services. As a result, the 5G NR system cannot obtain stable and continuous channel resources, which affects the system performance, such as the reception of paging and system messages, and the random access process. Summary of the invention

[0003] In view of this, the main purpose of the embodiments of the present invention is to provide a data transmission method, apparatus, related equipment and storage medium.

[0004] The technical solution of the embodiment of the present invention is achieved as follows:

[0005] An embodiment of the present invention provides a data transmission method, which is applied to a terminal and includes:

[0006] Perform LBT on multiple uplink frequency domain resources, send data on one uplink frequency domain resource, and receive data on one downlink frequency domain resource; or,

[0007] Perform LBT on multiple uplink frequency domain resources, send data on one uplink frequency domain resource, and receive data on multiple downlink frequency domain resources; or,

[0008] Perform LBT on multiple uplink frequency domain resources, send data on multiple uplink frequency domain resources, and receive data on multiple downlink frequency domain resources; or,

[0009] Perform LBT on multiple uplink frequency domain resources, send data on multiple uplink frequency domain resources, and receive data on one downlink frequency domain resource; or,

[0010] Perform LBT on an uplink frequency domain resource, send data on an uplink frequency domain resource, and receive data on a downlink frequency domain resource; or,

[0011] LBT is performed on one uplink frequency domain resource, data is sent on one uplink frequency domain resource, and data is received on multiple downlink frequency domain resources.

[0012] In the above solution, the uplink frequency domain resources are part of the uplink bandwidth; and the downlink frequency domain resources are part of the downlink bandwidth.

[0013] In the above solution, the partial bandwidth includes: a bandwidth part (BWP, BandWidth Part) and / or a partial bandwidth within a BWP.

[0014] In the above solution, LBT is performed on multiple uplink frequency domain resources, and data transmission on one uplink frequency domain resource includes one of the following:

[0015] Data is sent on the frequency domain resource where LBT succeeds first;

[0016] Data is sent on a frequency domain resource with the highest LBT success rate;

[0017] Sending data on a frequency domain resource with the highest LBT success rate within a first preset time length;

[0018] Sending data on a frequency domain resource having the highest number of LBT successes within a second preset time duration;

[0019] Data is sent on a frequency domain resource that meets a first threshold requirement.

[0020] In the above scheme,

[0021] Performing LBT on multiple uplink frequency domain resources, wherein the performing data transmission on multiple uplink frequency domain resources includes one of the following:

[0022] Data is transmitted on multiple frequency domain resources where LBT is successful;

[0023] Data is sent on multiple frequency domain resources with a higher LBT success rate;

[0024] Send data on multiple frequency domain resources with higher LBT success times;

[0025] Sending data on multiple frequency domain resources with a higher LBT success rate within a third preset time length;

[0026] Sending data on multiple frequency domain resources with a higher number of LBT successes within a fourth preset time length;

[0027] Data is sent on frequency domain resources that meet the second threshold requirement.

[0028] In the above scheme, the corresponding threshold requirement includes at least one of the following:

[0029] LBT success rate;

[0030] LBT success rate within the preset time;

[0031] Number of LBT successes;

[0032] The number of LBT successes within the preset time period;

[0033] Number of LBT failures;

[0034] The number of LBT failures within the preset time period;

[0035] LBT failure rate;

[0036] LBT failure rate within a preset time period;

[0037] Reference Signal Received Quality (RSRQ);

[0038] Signal to Interference and Noise Ratio (SINR);

[0039] Reference Signal Received Power (RSRP).

[0040] In the above solution, the corresponding threshold requirement is a prescribed requirement, or is obtained through a network.

[0041] In the above scheme, the corresponding preset duration is a prescribed duration, or is obtained through a network.

[0042] In the above scheme,

[0043] When data is sent on multiple frequency domain resources with a higher LBT success rate within the third preset time length, the method further includes:

[0044] Receive at least one of the following information sent by the network:

[0045] LBT success rate threshold;

[0046] The number of first frequency domain resources for data transmission;

[0047] The first maximum value of the number of frequency domain resources for data transmission.

[0048] In the above scheme, the

[0049] When data is sent on multiple frequency domain resources with a higher number of LBT successes within the fourth preset time length, the method further includes:

[0050] Receive at least one of the following information sent by the network:

[0051] The second LBT success number threshold;

[0052] The number of second frequency domain resources for data transmission;

[0053] The second maximum value of the number of frequency domain resources for data transmission.

[0054] In the above scheme, the method further comprises:

[0055] Report a first signaling to the network, where the first signaling is used to indicate frequency domain resource information for the terminal to perform LBT.

[0056] In the above solution, the content of the first signaling includes at least one of the following:

[0057] Perform LBT on a frequency domain resource;

[0058] Perform LBT on multiple frequency domain resources;

[0059] The number of frequency domain resources for LBT;

[0060] The maximum number of frequency domain resources for LBT;

[0061] The index of the frequency domain resources for LBT or the frequency domain resource location information.

[0062] In the above scheme,

[0063] The acquisition of information of multiple uplink frequency domain resources for LBT includes at least one of the following:

[0064] The specified number of uplink frequency domain resources for LBT;

[0065] The maximum number of uplink frequency domain resources specified for LBT;

[0066] The number of uplink frequency domain resources for LBT issued by the network;

[0067] The maximum number of uplink frequency domain resources for LBT sent by the network.

[0068] In the above scheme, the method further comprises:

[0069] Receive second signaling sent by the network; the second signaling is used to indicate downlink frequency domain resource information for receiving downlink data.

[0070] In the above solution, the content of the second signaling includes at least one of the following:

[0071] Receiving data on a downlink frequency domain resource;

[0072] Not receiving data on a downlink frequency domain resource;

[0073] Receiving data on multiple downlink frequency domain resources;

[0074] Not receiving data on multiple downlink frequency domain resources;

[0075] The number of frequency domain resources for receiving downlink data;

[0076] Receive the frequency domain resource index or frequency domain resource location information of the downlink data.

[0077] In the above solution, when LBT is performed on frequency domain resources, the method further includes one of the following:

[0078] If LBT fails within the fifth preset time period, frequency domain resource conversion is performed;

[0079] When the number of LBT failures reaches or exceeds the third threshold, frequency domain resource conversion is performed;

[0080] If the LBT failure rate reaches or exceeds a fourth threshold within a sixth preset time period, frequency domain resource conversion is performed;

[0081] If the LBT success rate reaches or falls below the fifth threshold within the seventh preset time period, the terminal performs frequency domain resource conversion.

[0082] In the above solution, when LBT is performed on frequency domain resources, the method further includes one of the following:

[0083] If LBT fails within the fifteenth preset time, the wireless link fails.

[0084] When the number of LBT failures reaches or exceeds the eleventh threshold, a wireless link failure is reported;

[0085] If the LBT failure rate reaches or exceeds the twelfth threshold within the sixteenth preset time period, a wireless link failure is reported;

[0086] If the LBT success rate reaches or falls below the thirteenth threshold within the seventeenth preset time period, a wireless link failure is reported.

[0087] In the above solution, when LBT is performed on frequency domain resources, the method further includes one of the following:

[0088] If the LBT fails within the eighteenth preset time period, the physical layer of the terminal reports the LBT failure to the medium access control MAC layer of the terminal;

[0089] When the number of LBT failures reaches or exceeds the fourteenth threshold, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0090] If the LBT failure rate reaches or exceeds the fifteenth threshold within the nineteenth preset time period, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0091] If the LBT success rate reaches or falls below the sixteenth threshold within the twentieth preset time period, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal.

[0092] In the above scheme, the corresponding preset duration is a prescribed duration, or is obtained through a network.

[0093] In the above scheme, the corresponding threshold is a prescribed threshold, or a threshold issued by the network.

[0094] In the above solution, when performing frequency domain resource conversion, the method further includes:

[0095] Determine the target frequency domain resource for frequency domain resource conversion by one of the following methods:

[0096] Autonomously determine target frequency domain resources;

[0097] The frequency domain resources that meet certain threshold requirements are used as target frequency domain resources;

[0098] The target frequency domain resource is determined by using the index of the target frequency domain resource sent by the network.

[0099] In the above solution, the threshold requirement includes at least one of the following:

[0100] LBT success rate;

[0101] The success rate of LBT within a specific duration;

[0102] Number of LBT successes;

[0103] The number of LBT successes within a specific time period;

[0104] Number of LBT failures;

[0105] The number of LBT failures within a specific time period;

[0106] LBT failure rate;

[0107] LBT failure rate within a specific duration;

[0108] RSRQ;

[0109] SINR;

[0110] RSRP.

[0111] In the above scheme, the method further comprises:

[0112] Report a third signaling to the network, where the third signaling is used to indicate uplink frequency domain resource information for the terminal to send uplink data.

[0113] In the above solution, the content of the third signaling includes at least one of the following:

[0114] Sending data on an uplink frequency domain resource;

[0115] Sending data on multiple uplink frequency domain resources;

[0116] Not sending data on multiple uplink frequency domain resources;

[0117] the number of multiple uplink frequency domain resources for data transmission;

[0118] a maximum number of multiple uplink frequency domain resources for data transmission;

[0119] The uplink frequency domain resource index or frequency domain resource location information for data transmission.

[0120] In the above scheme, the method further comprises:

[0121] Receive a fourth signaling sent by the network; the fourth signaling is used to indicate uplink frequency domain resource information for the terminal to send uplink data.

[0122] In the above solution, the content of the fourth signaling includes at least one of the following:

[0123] The number of uplink frequency domain resources for data transmission;

[0124] The maximum number of uplink frequency domain resources for data transmission;

[0125] The uplink frequency domain resource index or frequency domain resource location information for data transmission.

[0126] The embodiment of the present invention further provides a data transmission method, which is applied to a network device, comprising:

[0127] Perform LBT on multiple downlink frequency domain resources, send data on one downlink frequency domain resource, and receive data on one uplink frequency domain resource; or,

[0128] Perform LBT on multiple downlink frequency domain resources, send data on multiple downlink frequency domain resources, and receive data on one uplink frequency domain resource; or,

[0129] Perform LBT on multiple downlink frequency domain resources, send data on multiple downlink frequency domain resources, and receive data on multiple uplink frequency domain resources; or,

[0130] Perform LBT on multiple downlink frequency domain resources, send data on one downlink frequency domain resource, and receive data on multiple uplink frequency domain resources; or,

[0131] Perform LBT on a downlink frequency domain resource, send data on a downlink frequency domain resource, and receive data on an uplink frequency domain resource; or,

[0132] LBT is performed on one downlink frequency domain resource, data is sent on multiple downlink frequency domain resources, and data is received on one uplink frequency domain resource.

[0133] In the above solution, the uplink frequency domain resources are part of the uplink bandwidth; and the downlink frequency domain resources are part of the downlink bandwidth.

[0134] In the above solution, the partial bandwidth includes: BWP and / or partial bandwidth within BWP.

[0135] In the above solution, LBT is performed on multiple downlink frequency domain resources, and the downlink data is sent on one downlink frequency domain resource, including one of the following:

[0136] Data is sent on the frequency domain resource where LBT succeeds first;

[0137] Data is sent on a frequency domain resource with the highest LBT success rate;

[0138] Sending data on a frequency domain resource with the highest LBT success rate within an eighth preset time length;

[0139] Sending data on a frequency domain resource having the highest number of LBT successes within a ninth preset time period;

[0140] Data is sent on a frequency domain resource that meets a sixth threshold requirement.

[0141] In the above scheme,

[0142] Performing LBT on multiple downlink frequency domain resources, wherein the performing downlink data transmission on multiple downlink frequency domain resources includes one of the following:

[0143] Data is transmitted on multiple frequency domain resources where LBT is successful;

[0144] Data is sent on multiple frequency domain resources with a higher LBT success rate;

[0145] Send data on multiple frequency domain resources with higher LBT success times;

[0146] Sending data on multiple frequency domain resources with a higher LBT success rate within the tenth preset time length;

[0147] Sending data on multiple frequency domain resources with a higher number of LBT successes within the eleventh preset time length;

[0148] Data is sent on frequency domain resources that meet the seventh threshold requirement.

[0149] In the above solution, the threshold requirement includes at least one of the following:

[0150] LBT success rate;

[0151] LBT success rate within the preset time;

[0152] Number of LBT successes;

[0153] The number of LBT successes within the preset time period;

[0154] Number of LBT failures;

[0155] The number of LBT failures within the preset time period;

[0156] LBT failure rate;

[0157] LBT failure rate within a preset time period;

[0158] RSRQ;

[0159] SINR;

[0160] RSRP.

[0161] In the above scheme, the method further comprises:

[0162] Send at least one of the following information to the terminal:

[0163] A first preset duration; the first preset duration is used for the terminal to determine a frequency domain resource with the highest LBT success rate within the first preset duration for data transmission;

[0164] A second preset duration, where the second preset duration is used for the terminal to determine a frequency domain resource with the highest number of LBT successes within the second preset duration for data transmission;

[0165] A third preset duration, where the third preset duration is used for the terminal to determine a plurality of frequency domain resources with a higher LBT success rate within the third preset duration for data transmission;

[0166] LBT success rate threshold; the first LBT success rate threshold is used for the terminal to determine a plurality of frequency domain resources with a higher LBT success rate within a third preset time length for data transmission;

[0167] The number of first frequency domain resources for data transmission; the second frequency domain resource data is used for the terminal to determine multiple frequency domain resources with a higher LBT success rate within a third preset time length for data transmission;

[0168] a first maximum value of the number of frequency domain resources for data transmission; the first maximum value is used by the terminal to determine a plurality of frequency domain resources with a higher LBT success rate within a third preset time length for data transmission;

[0169] a fourth preset duration, where the fourth preset duration is used by the terminal to determine a plurality of frequency domain resources with a higher number of LBT successes within the fourth preset duration for data transmission;

[0170] LBT success number threshold; the success number threshold is used for the terminal to determine a plurality of frequency domain resources with a higher number of LBT successes within a fourth preset time length for data transmission;

[0171] The number of second frequency domain resources for data transmission; the second frequency domain resource data is used for the terminal to determine multiple frequency domain resources with a higher number of LBT successes within a fourth preset time length for data transmission;

[0172] a second maximum value of the number of frequency domain resources for data transmission; the second maximum value is used by the terminal to determine a plurality of frequency domain resources with a higher number of LBT successes within a fourth preset duration for data transmission;

[0173] A first threshold requirement; the first threshold requirement is used for the terminal to determine a frequency domain resource for data transmission;

[0174] A second threshold requirement; the second threshold requirement is used by the terminal to determine a plurality of frequency domain resources for data transmission;

[0175] The fifth preset duration; the fifth preset duration is used for the terminal to determine whether LBT is successful for a frequency domain resource within the fifth preset duration;

[0176] The sixth preset duration; the sixth preset duration is used for the terminal to determine the failure rate of LBT for a frequency domain resource within the sixth preset duration;

[0177] A seventh preset duration; the seventh preset duration is used for the terminal to determine a success rate of LBT for a frequency domain resource within the seventh preset duration;

[0178] The third threshold is used for the terminal to determine whether the number of LBT failures reaches or exceeds the third threshold to determine whether to perform frequency domain resource conversion;

[0179] The fourth threshold is used by the terminal to determine whether the LBT failure rate reaches or exceeds the fourth threshold within the sixth preset time length to determine whether to perform frequency domain resource conversion;

[0180] The fifth threshold is used by the terminal to determine whether the LBT success rate reaches or is lower than the fifth threshold within the seventh preset time length, so as to determine whether to perform frequency domain resource conversion;

[0181] The fifteenth preset time length; the fifteenth preset time length is used for the terminal to determine whether a frequency domain resource is successfully LBT within the fifteenth preset time length;

[0182] A sixteenth preset duration; the sixteenth preset duration is used by the terminal to determine a failure rate of LBT for a frequency domain resource within the sixteenth preset duration;

[0183] The seventeenth preset duration; the seventeenth preset duration is used for the terminal to determine the success rate of LBT for a frequency domain resource within the seventeenth preset duration;

[0184] The eleventh threshold; the eleventh threshold is used for the terminal to determine whether the number of LBT failures reaches or exceeds the eleventh threshold to determine whether to report the radio link failure;

[0185] The twelfth threshold; the twelfth threshold is used by the terminal to determine whether the LBT failure rate reaches or exceeds the twelfth threshold within the sixteenth preset time length, so as to determine whether to report the wireless link failure;

[0186] The thirteenth threshold; the thirteenth threshold is used by the terminal to determine whether the LBT success rate reaches or is lower than the thirteenth threshold within the seventeenth preset time length, so as to determine whether to report the wireless link failure;

[0187] An eighteenth preset duration; the eighteenth preset duration is used for the terminal to determine whether LBT is successful for a frequency domain resource within the eighteenth preset duration;

[0188] A nineteenth preset duration; the nineteenth preset duration is used by the terminal to determine a failure rate of LBT for a frequency domain resource within the nineteenth preset duration;

[0189] The twentieth preset duration; the twentieth preset duration is used by the terminal to determine the success rate of LBT for a frequency domain resource within the twentieth preset duration;

[0190] The fourteenth threshold is used for the terminal to determine whether the number of LBT failures reaches or exceeds the fourteenth threshold to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0191] The twelfth threshold; the twelfth threshold is used by the terminal to determine whether the LBT failure rate reaches or exceeds the twelfth threshold within the sixteenth preset time length, so as to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0192] The thirteenth threshold; the thirteenth threshold is used by the terminal to determine whether the LBT success rate reaches or is lower than the thirteenth threshold within the seventeenth preset time length, so as to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0193] The maximum number of uplink frequency domain resources;

[0194] The number of uplink frequency domain resources;

[0195] The index of the target frequency domain resource for frequency domain resource switching when the uplink frequency domain resource performs BLT.

[0196] In the above scheme, the method further comprises:

[0197] A first signaling reported by a receiving terminal; the first signaling is used to indicate frequency domain resource information for the terminal to perform LBT.

[0198] In the above solution, the content of the first signaling includes at least one of the following:

[0199] Perform LBT on a frequency domain resource;

[0200] Perform LBT on multiple frequency domain resources;

[0201] The number of frequency domain resources for LBT;

[0202] The maximum number of frequency domain resources for LBT;

[0203] The index of the frequency domain resources for LBT or the frequency domain resource location information.

[0204] In the above scheme, the method further comprises:

[0205] A second signaling is sent to the terminal; the second signaling is used to instruct the terminal to receive downlink frequency domain resource information of downlink data.

[0206] In the above solution, the content of the second signaling includes at least one of the following:

[0207] Receiving data on a downlink frequency domain resource;

[0208] Not receiving data on a downlink frequency domain resource;

[0209] Receiving data on multiple downlink frequency domain resources;

[0210] Not receiving data on multiple downlink frequency domain resources;

[0211] The number of frequency domain resources for receiving downlink data;

[0212] Receive the frequency domain resource index or frequency domain resource location information of the downlink data.

[0213] In the above solution, when LBT is performed on frequency domain resources, the method further includes one of the following:

[0214] If LBT is unsuccessful within the twelfth preset time period, frequency domain resource conversion is performed;

[0215] When the number of LBT failures reaches or exceeds the eighth threshold, frequency domain resource conversion is performed;

[0216] If the LBT failure rate reaches or exceeds the ninth threshold within the thirteenth preset time period, frequency domain resource conversion is performed;

[0217] If the LBT success rate reaches or is lower than the tenth threshold within the fourteenth preset time period, frequency domain resource conversion is performed.

[0218] In the above solution, when performing frequency domain resource conversion, the method further includes:

[0219] Determine the target frequency domain resource for frequency domain resource conversion by one of the following methods:

[0220] Autonomously determine target frequency domain resources;

[0221] The frequency domain resources that meet certain threshold requirements are used as target frequency domain resources.

[0222] In the above scheme,

[0223] The threshold requirement includes at least one of the following:

[0224] LBT success rate;

[0225] The success rate of LBT within a specific duration;

[0226] Number of LBT successes;

[0227] The number of LBT successes within a specific time period;

[0228] Number of LBT failures;

[0229] The number of LBT failures within a specific time period;

[0230] LBT failure rate;

[0231] LBT failure rate within a specific duration;

[0232] RSRQ;

[0233] SINR;

[0234] RSRP.

[0235] In the above scheme, the method further comprises:

[0236] A third signaling reported by a receiving terminal is used to indicate uplink frequency domain resource information for uplink data transmission by the terminal.

[0237] In the above solution, the content of the third signaling includes at least one of the following:

[0238] Support data transmission on one uplink frequency domain resource;

[0239] Support data transmission on multiple uplink frequency domain resources;

[0240] Data transmission on multiple uplink frequency domain resources is not supported;

[0241] the number of multiple uplink frequency domain resources for data transmission;

[0242] a maximum number of multiple uplink frequency domain resources for data transmission;

[0243] The uplink frequency domain resource index or frequency domain resource location information for data transmission.

[0244] In the above scheme, the method further comprises:

[0245] A fourth signaling is sent to the terminal; the fourth signaling is used to indicate uplink frequency domain resource information for the terminal to send uplink data.

[0246] In the above solution, the content of the fourth signaling includes at least one of the following:

[0247] The number of uplink frequency domain resources for data transmission;

[0248] The maximum number of uplink frequency domain resources for data transmission;

[0249] The uplink frequency domain resource index or frequency domain resource location information for data transmission.

[0250] The embodiment of the present invention further provides a data transmission device, comprising: a first listening unit and a first transceiver unit; wherein:

[0251] The first listening unit is used to perform LBT on multiple uplink frequency domain resources; the first transceiver unit is used to send data on an uplink frequency domain resource and receive data on a downlink frequency domain resource; or,

[0252] The first listening unit is used to perform LBT on multiple uplink frequency domain resources; the first transceiver unit is used to send data on one uplink frequency domain resource and receive data on multiple downlink frequency domain resources; or,

[0253] The first listening unit is used to perform LBT on multiple uplink frequency domain resources; the first transceiver unit is used to send data on multiple uplink frequency domain resources and receive data on multiple downlink frequency domain resources; or,

[0254] The first listening unit is used to perform LBT on multiple uplink frequency domain resources; the first transceiver unit is used to send data on multiple uplink frequency domain resources and receive data on one downlink frequency domain resource; or,

[0255] The first listening unit is used to perform LBT on an uplink frequency domain resource; the first transceiver unit is used to send data on an uplink frequency domain resource and receive data on a downlink frequency domain resource; or,

[0256] The first listening unit is used to perform LBT on an uplink frequency domain resource; the first transceiver unit is used to send data on an uplink frequency domain resource and receive data on multiple downlink frequency domain resources.

[0257] In the above scheme, the first transceiver unit is also used to report a first signaling to the network, and the first signaling is used to indicate the frequency domain resource information of the terminal for performing LBT.

[0258] In the above solution, the first transceiver unit is also used to receive a second signaling sent by the network; the second signaling is used to indicate the downlink frequency domain resource information for receiving downlink data.

[0259] In the above solution, the first listening unit,

[0260] It is also used to perform one of the following operations when performing LBT on frequency domain resources:

[0261] If LBT fails within the fifth preset time period, frequency domain resource conversion is performed;

[0262] When the number of LBT failures reaches or exceeds the third threshold, frequency domain resource conversion is performed;

[0263] If the LBT failure rate reaches or exceeds a fourth threshold within a sixth preset time period, frequency domain resource conversion is performed;

[0264] If the LBT success rate reaches or is lower than the fifth threshold within the seventh preset time period, frequency domain resource conversion is performed.

[0265] In the above solution, the first transceiver unit is further used to report a third signaling to the network, and the third signaling is used to indicate the uplink frequency domain resource information for the terminal to send uplink data.

[0266] In the above scheme, the first transceiver unit is further used to receive a fourth signaling sent by the network; the fourth signaling is used to instruct the terminal to perform uplink frequency domain resource information for sending uplink data.

[0267] The embodiment of the present invention further provides a data transmission device, comprising: a second listening unit and a second transceiver unit; wherein:

[0268] The second listening unit is used to perform LBT on multiple downlink frequency domain resources; the second transceiver unit is used to send data on a downlink frequency domain resource and receive data on an uplink frequency domain resource; or,

[0269] The second listening unit is used to perform LBT on multiple downlink frequency domain resources; the second transceiver unit is used to send data on multiple downlink frequency domain resources and receive data on one uplink frequency domain resource; or,

[0270] The second listening unit is used to perform LBT on multiple downlink frequency domain resources; the second transceiver unit is used to send data on multiple downlink frequency domain resources and receive data on multiple uplink frequency domain resources; or,

[0271] The second listening unit is used to perform LBT on multiple downlink frequency domain resources; the second transceiver unit is used to send data on one downlink frequency domain resource and receive data on multiple uplink frequency domain resources; or,

[0272] The second listening unit is used to perform LBT on a downlink frequency domain resource; the second transceiver unit is used to send data on a downlink frequency domain resource and receive data on an uplink frequency domain resource; or,

[0273] The second listening unit is used to perform LBT on a downlink frequency domain resource; the second transceiver unit is used to send data on multiple downlink frequency domain resources and receive data on an uplink frequency domain resource.

[0274] In the above solution, the second transceiver unit is further used for:

[0275] A first signaling reported by a receiving terminal; the first signaling is used to indicate frequency domain resource information for the terminal to perform LBT.

[0276] In the above solution, the second transceiver unit is further used for:

[0277] A second signaling is sent to the terminal; the second signaling is used to instruct the terminal to receive downlink frequency domain resource information of downlink data.

[0278] In the above solution, the second listening unit is further used to:

[0279] When performing LBT on frequency domain resources, perform one of the following operations:

[0280] If LBT is unsuccessful within the twelfth preset time period, frequency domain resource conversion is performed;

[0281] When the number of LBT failures reaches or exceeds the eighth threshold, frequency domain resource conversion is performed;

[0282] If the LBT failure rate reaches or exceeds the ninth threshold within the thirteenth preset time period, frequency domain resource conversion is performed;

[0283] If the LBT success rate reaches or is lower than the tenth threshold within the fourteenth preset time period, the terminal performs frequency domain resource conversion.

[0284] In the above solution, the second transceiver unit is further used for:

[0285] A third signaling reported by a receiving terminal is used to indicate uplink frequency domain resource information for uplink data transmission by the terminal.

[0286] In the above solution, the second transceiver unit is further used for:

[0287] A fourth signaling is sent to the terminal; the fourth signaling is used to indicate uplink frequency domain resource information for the terminal to send uplink data.

[0288] The embodiment of the present invention further provides a terminal, comprising: a first processor and a first communication interface; wherein,

[0289] The first communication interface is used to perform LBT on multiple uplink frequency domain resources, send data on one uplink frequency domain resource, and receive data on one downlink frequency domain resource under the control of the first processor; or

[0290] The first communication interface is used to perform LBT on multiple uplink frequency domain resources, send data on one uplink frequency domain resource, and receive data on multiple downlink frequency domain resources under the control of the first processor; or

[0291] The first communication interface is used to perform LBT on multiple uplink frequency domain resources, send data on multiple uplink frequency domain resources, and receive data on multiple downlink frequency domain resources under the control of the first processor; or

[0292] The first communication interface is used to perform LBT on multiple uplink frequency domain resources, send data on multiple uplink frequency domain resources, and receive data on one downlink frequency domain resource under the control of the first processor; or

[0293] The first communication interface is used to perform LBT on an uplink frequency domain resource, send data on an uplink frequency domain resource, and receive data on a downlink frequency domain resource under the control of the first processor; or

[0294] The first communication interface is used to perform LBT on an uplink frequency domain resource, send data on an uplink BWP, and receive data on multiple downlink frequency domain resources under the control of the first processor.

[0295] In the above scheme, the first communication interface is also used to report a first signaling to the network, and the first signaling is used to indicate the frequency domain resource information of the terminal for performing LBT.

[0296] In the above solution, the first communication interface is also used to receive a second signaling sent by the network; the second signaling is used to indicate the downlink frequency domain resource information for receiving downlink data.

[0297] In the above solution, the first communication interface,

[0298] It is also used to perform one of the following operations when performing LBT on frequency domain resources:

[0299] If LBT fails within the fifth preset time period, frequency domain resource conversion is performed;

[0300] When the number of LBT failures reaches or exceeds the third threshold, frequency domain resource conversion is performed;

[0301] If the LBT failure rate reaches or exceeds a fourth threshold within a sixth preset time period, frequency domain resource conversion is performed;

[0302] If the LBT success rate reaches or falls below the fifth threshold within the seventh preset time period, the terminal performs frequency domain resource conversion.

[0303] In the above solution, the first communication interface is further used to report a third signaling to the network, and the third signaling is used to indicate the uplink frequency domain resource information for the terminal to send uplink data.

[0304] In the above scheme, the first communication interface is also used to receive a fourth signaling sent by the network; the fourth signaling is used to indicate the uplink frequency domain resource information for the terminal to send uplink data.

[0305] The embodiment of the present invention further provides a network device, comprising: a second processor and a second communication interface; wherein:

[0306] The second communication interface is used to perform LBT on multiple downlink frequency domain resources, send data on one downlink frequency domain resource, and receive data on one uplink frequency domain resource under the control of the second processor; or

[0307] The second communication interface is used to perform LBT on multiple downlink frequency domain resources under the control of the second processor, to send data on multiple downlink frequency domain resources, and to receive data on one uplink frequency domain resource; or

[0308] The second communication interface is used to perform LBT on multiple downlink frequency domain resources under the control of the second processor, and is used to send data on multiple downlink frequency domain resources and receive data on multiple uplink frequency domain resources; or,

[0309] The second communication interface is used to perform LBT on multiple downlink frequency domain resources, send data on one downlink frequency domain resource, and receive data on multiple uplink frequency domain resources under the control of the second processor; or

[0310] The second communication interface is used to perform LBT on a downlink frequency domain resource under the control of the second processor, to send data on a downlink frequency domain resource, and to receive data on an uplink frequency domain resource; or

[0311] The second communication interface is used to perform LBT on a downlink frequency domain resource under the control of the second processor, to send data on multiple downlink frequency domain resources, and to receive data on an uplink frequency domain resource.

[0312] In the above scheme, the second communication interface is also used to: receive a first signaling reported by the terminal; the first signaling is used to indicate the frequency domain resource information of the terminal for performing LBT.

[0313] In the above solution, the second communication interface is further used for:

[0314] A second signaling is sent to the terminal; the second signaling is used to instruct the terminal to receive downlink frequency domain resource information of downlink data.

[0315] In the above solution, the second communication interface is further used for:

[0316] When performing LBT on the frequency domain resources, one of the following operations is performed under the control of the second processor:

[0317] If LBT is unsuccessful within the twelfth preset time period, frequency domain resource conversion is performed;

[0318] When the number of LBT failures reaches or exceeds the eighth threshold, frequency domain resource conversion is performed;

[0319] If the LBT failure rate reaches or exceeds the ninth threshold within the thirteenth preset time period, frequency domain resource conversion is performed;

[0320] If the LBT success rate reaches or is lower than the tenth threshold within the fourteenth preset time period, the terminal performs frequency domain resource conversion.

[0321] In the above solution, the second communication interface is further used for:

[0322] A third signaling reported by a receiving terminal is used to indicate uplink frequency domain resource information for uplink data transmission by the terminal.

[0323] In the above solution, the second communication interface is further used for:

[0324] A fourth signaling is sent to the terminal; the fourth signaling is used to indicate information about uplink frequency domain resources for the terminal to send uplink data.

[0325] An embodiment of the present invention further provides a terminal, comprising: a first processor and a first memory for storing a computer program that can be run on the processor,

[0326] Wherein, the first processor is used to execute the steps of any of the above-mentioned terminal side methods when running the computer program.

[0327] The embodiment of the present invention further provides a network device, comprising: a second processor and a second memory for storing a computer program that can be run on the processor,

[0328] Wherein, the second processor is used to execute the steps of any one of the above-mentioned methods on the network device side when running the computer program.

[0329] An embodiment of the present invention further provides a storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above-mentioned methods on the terminal side are implemented, or the steps of any of the above-mentioned methods on the network device side are implemented.

[0330] The data transmission method, apparatus, related equipment and storage medium provided by the embodiments of the present invention, the terminal performs corresponding LBT for multiple BWPs, sends data after the LBT is successful, and receives data on the downlink BWP, and the network device performs corresponding LBT for multiple BWPs, sends data after the LBT is successful, and receives data on the downlink BWP. Since multiple working BWPs are configured and LBT is performed before sending data, the opportunity of the 5G system to obtain channel resources can be greatly increased, thereby ensuring system performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0331] Figure 1 This is a schematic diagram of a method flow chart for data transmission on a terminal side according to an embodiment of the present invention;

[0332] Figure 2 A schematic diagram of a method flow for data transmission on a network device side according to an embodiment of the present invention;

[0333] Figure 3 A schematic diagram of a method flow chart for data transmission according to an embodiment of the present invention;

[0334] Figure 4 This is a schematic diagram of the structure of a data transmission device according to an embodiment of the present invention;

[0335] Figure 5 This is a schematic diagram of the structure of another data transmission device according to an embodiment of the present invention;

[0336] Figure 6 This is a schematic diagram of the terminal structure of an embodiment of the present invention;

[0337] Figure 7 This is a schematic diagram of the structure of a network device according to an embodiment of the present invention;

[0338] Figure 8 It is a schematic diagram of the structure of a data transmission system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0339] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0340] The reason why the 5G NR system cannot obtain stable and continuous channel resources when working independently in unlicensed spectrum is:

[0341] The current 5G NR system configures an initial BWP for the terminal through broadcasting. The terminal receives paging and system messages on the initial BWP and initiates random access on the initial BWP. If there are many WIFI services on the initial BWP, the 5G NR system may have fewer opportunities to obtain channel resources, which will affect the system performance. On the other hand, when in a connected state, the terminal is only allowed to activate one BWP and send and receive data on the activated BWP. If the WIFI interference on the activated BWP is large, the 5G NR system may have fewer opportunities to obtain channel resources, which will also affect the system performance.

[0342] Based on this, in various embodiments of the present invention: multiple initial BWPs are configured or multiple BWPs are activated so that LBT can be performed, data can be sent after LBT is successful, and data can be received on the corresponding BWP.

[0343] The solution provided by the embodiment of the present invention configures multiple working BWPs and performs LBT before sending data. This can greatly increase the chances of the 5G system acquiring channel resources, thereby ensuring system performance.

[0344] The embodiment of the present invention provides a data transmission method, which is applied to a terminal, such as Figure 1 As shown, the method includes:

[0345] Step 101: determining a plurality of configured frequency domain resources;

[0346] For example, multiple configured working BWPs are determined; specifically, multiple configured initial BWPs are determined and / or multiple BWPs are activated.

[0347] Here, the network configures multiple BWPs for the terminal. In other words, the network configures multiple working BWPs for the terminal.

[0348] Specifically, when the terminal is in an idle state, multiple initial BWPs are configured for the terminal; when the terminal is in a connected state, multiple BWPs are activated for the terminal.

[0349] Step 102: Perform corresponding LBT for multiple frequency domain resources, send data after LBT is successful, and receive data on the downlink BWP.

[0350] Specifically, for multiple frequency domain resources, the terminal can select one uplink frequency domain resource for LBT, or select multiple uplink frequency domain resources for LBT; accordingly, the uplink frequency domain resource for sending data can be one or multiple; the downlink frequency domain resource for receiving data can be one or multiple.

[0351] Specifically, the terminal has the following implementation processes:

[0352] The first method is to perform LBT on multiple uplink frequency domain resources, send data on one uplink frequency domain resource, and receive data on one downlink frequency domain resource;

[0353] The second method is to perform LBT on multiple uplink frequency domain resources, send data on one uplink frequency domain resource, and receive data on multiple downlink frequency domain resources;

[0354] The third type is to perform LBT on multiple uplink frequency domain resources, send data on multiple uplink frequency domain resources, and receive data on multiple downlink frequency domain resources;

[0355] The fourth method is to perform LBT on multiple uplink frequency domain resources, send data on multiple uplink frequency domain resources, and receive data on one downlink frequency domain resource;

[0356] The fifth type is to perform LBT on an uplink frequency domain resource, send data on an uplink frequency domain resource, and receive data on a downlink frequency domain resource;

[0357] The sixth type is to perform LBT on one uplink frequency domain resource, send data on one uplink frequency domain resource, and receive data on multiple downlink frequency domain resources.

[0358] The uplink frequency domain resources are part of the uplink bandwidth; and the downlink frequency domain resources are part of the downlink bandwidth.

[0359] Here, in one embodiment, the partial bandwidth includes: a bandwidth part BWP and / or a partial bandwidth within a BWP.

[0360] In actual application, one of the above implementation processes can be selected as needed.

[0361] In actual application, when the terminal is in an idle state, data transmission and reception are mainly data transmission and reception in a random access process, such as MSG1, MSG2, MSG3 and MSG4.

[0362] When the terminal is in a connected state, the sending and receiving of data may include: sending and receiving of service data, or other data (such as scheduling information, etc.), and the like.

[0363] In actual application, when the number of uplink frequency domain resources for sending data is the same as the number of downlink frequency domain resources for receiving data (for example, both are 1), there may be a certain relationship between the uplink frequency domain resources for sending data and the downlink frequency domain resources for receiving data.

[0364] Specifically, in a time division duplex (TDD) system, the relationship between the two may be that the uplink frequency domain resources and the downlink frequency domain resources have the same frequency domain resource index, or the uplink frequency domain resources and the downlink frequency domain resources have different frequency domain resource indexes.

[0365] In a frequency division duplex (FDD) system, the relationship between the two may be a pairing relationship of uplink and downlink frequency domain resources, or may be a relationship in which there is no pairing relationship of uplink and downlink frequency domain resources.

[0366] In actual application, in a TDD system, the terminal may preferentially receive downlink data on the downlink frequency domain resources corresponding to the uplink frequency domain resources (having the same frequency domain resource index as the uplink frequency domain resources).

[0367] In an FDD system, the terminal may preferentially receive downlink data on downlink frequency domain resources paired with uplink frequency domain resources.

[0368] In one embodiment, LBT is performed on multiple uplink frequency domain resources, and sending data on one uplink frequency domain resource includes one of the following:

[0369] Data is sent on the frequency domain resource where LBT succeeds first;

[0370] Data is sent on a frequency domain resource with the highest LBT success rate;

[0371] Sending data on a frequency domain resource with the highest LBT success rate within a first preset time length;

[0372] Sending data on a frequency domain resource having the highest number of LBT successes within a second preset time duration;

[0373] Data is sent on a frequency domain resource that meets a first threshold requirement.

[0374] Here, in actual application, the terminal may select an uplink frequency domain resource for data transmission as needed.

[0375] The LBT success rate refers to the ratio of the number of LBT successes within a period of time to the number of LBTs within that period of time.

[0376] In one embodiment, LBT is performed on multiple uplink frequency domain resources, and the sending of data on multiple uplink frequency domain resources includes one of the following:

[0377] Data is transmitted on multiple frequency domain resources where LBT is successful;

[0378] Data is sent on multiple frequency domain resources with a higher LBT success rate;

[0379] Send data on multiple frequency domain resources with higher LBT success times;

[0380] Sending data on multiple frequency domain resources with a higher LBT success rate within a third preset time length;

[0381] Sending data on multiple frequency domain resources with a higher number of LBT successes within a fourth preset time length;

[0382] Data is sent on frequency domain resources that meet the second threshold requirement.

[0383] In actual application, the corresponding threshold requirements (such as the first threshold and the second threshold) include at least one of the following:

[0384] LBT success rate;

[0385] LBT success rate within the preset time;

[0386] Number of LBT successes;

[0387] The number of LBT successes within the preset time period;

[0388] Number of LBT failures;

[0389] The number of LBT failures within the preset time period;

[0390] LBT failure rate;

[0391] LBT failure rate within a preset time period;

[0392] RSRQ;

[0393] SINR;

[0394] RSRP.

[0395] Here, corresponding to the LBT success rate, the LBT failure rate refers to: the ratio of the number of LBT failures within a period of time to the number of LBTs within the period of time.

[0396] In actual application, the data transmission on the frequency domain resources that meet the first and second threshold requirements can be understood as: multiple frequency domain resources determine the frequency domain resource priority, and the target frequency domain resource is determined for data transmission according to the frequency domain resource priority.

[0397] The corresponding threshold requirement may be a prescribed requirement, or may be obtained through a network.

[0398] The corresponding preset time lengths (such as the first preset time length, the second preset time length, the third preset time length, and the fourth preset time length) are time lengths specified in the protocol, or are obtained through a network.

[0399] When the terminal sends data on multiple uplink frequency domain resources, for idle terminals, MSG1 and MSG3 can be sent on multiple frequency domain resources for acquiring channel resources; correspondingly, when the network side also sends data on multiple downlink frequency domain resources, MSG2 can be sent on multiple frequency domain resources for acquiring channel resources; further, for MSG4, the network side selects 1 frequency domain resource for sending. The network's selection decision can be determined by the LBT success rate and / or interference situation, etc. (which can be understood as being determined based on the priority ranking of frequency domain resources).

[0400] The MSG3 sent on multiple frequency domain resources uses the same terminal identifier (or cell radio network temporary identifier (C-RNTI)), so that the network knows that the received multiple random access requests are from the same terminal.

[0401] In one embodiment, when data is sent on multiple frequency domain resources with a higher LBT success rate within the third preset time length, the method may further include:

[0402] Receive at least one of the following information sent by the network:

[0403] LBT success rate threshold;

[0404] The number of first frequency domain resources for data transmission;

[0405] The first maximum value of the number of frequency domain resources for data transmission.

[0406] Here, the terminal can use the above information received from the network side to further determine multiple frequency domain resources with a higher LBT success rate within a third preset time period for data transmission.

[0407] In one embodiment, when data is sent on multiple frequency domain resources with a higher number of LBT successes within the fourth preset time length, the method may further include:

[0408] Receive at least one of the following information sent by the network:

[0409] The second LBT success number threshold;

[0410] The number of second frequency domain resources for data transmission;

[0411] The second maximum value of the number of frequency domain resources for data transmission.

[0412] Here, the terminal may utilize the above information received from the network side to further determine a plurality of frequency domain resources with a higher number of LBT successes within a third preset time period for data transmission.

[0413] In actual application, the terminal may obtain information of multiple uplink frequency domain resources so as to perform LBT on the multiple uplink frequency domain resources.

[0414] Based on this, in one embodiment, the acquisition of information of multiple uplink frequency domain resources for LBT includes at least one of the following:

[0415] The specified number of uplink frequency domain resources for LBT;

[0416] The maximum number of uplink frequency domain resources specified for LBT;

[0417] The number of uplink frequency domain resources for LBT issued by the network;

[0418] The maximum number of uplink frequency domain resources for LBT sent by the network.

[0419] In actual application, the terminal can report its own uplink frequency domain resource information for LBT so that the network equipment can be aware of it and can receive the sent data in time.

[0420] Based on this, in one embodiment, the method may further include:

[0421] Report a first signaling to the network, where the first signaling is used to indicate frequency domain resource information for the terminal to perform LBT.

[0422] The content of the first signaling includes at least one of the following:

[0423] Perform LBT on a frequency domain resource;

[0424] Perform LBT on multiple frequency domain resources;

[0425] The number of frequency domain resources for LBT;

[0426] The maximum number of frequency domain resources for LBT;

[0427] The index of the frequency domain resources for LBT or the frequency domain resource location information.

[0428] In actual application, the first signaling may be a radio resource control (RRC) signaling or the like.

[0429] In actual application, the network may also send downlink frequency domain resource information to the terminal so that the terminal can obtain the information and then receive the data sent by the network in a timely manner.

[0430] Based on this, in one embodiment, the method may further include:

[0431] Receive second signaling sent by the network; the second signaling is used to indicate downlink frequency domain resource information for receiving downlink data.

[0432] Here, the second signaling may be RRC signaling, broadcast (such as physical broadcast channel (PBCH)), system message, etc.

[0433] The content of the second signaling includes at least one of the following:

[0434] Receiving data on a downlink frequency domain resource;

[0435] Not receiving data on a downlink frequency domain resource;

[0436] Receiving data on multiple downlink frequency domain resources;

[0437] Not receiving data on multiple downlink frequency domain resources;

[0438] The number of frequency domain resources for receiving downlink data;

[0439] Receive the frequency domain resource index or frequency domain resource location information of the downlink data.

[0440] During the working process of each frequency domain resource, a timer or counter can be introduced. If no data is sent (uplink frequency domain resources) or received (downlink frequency domain resources) within the timer duration or the counter value, the frequency domain resources are switched. For example, the frequency domain resources can be switched according to the priority order of the frequency domain resources.

[0441] Here, the duration of the timer or counter may be configured by the network side, for example, through a system message (for a terminal in an idle state), an RRC message (for a terminal in a connected state), and the like.

[0442] No data reception (downlink frequency domain resources) is performed within the timer duration or the counter value, which can be understood as: no uplink data scheduling, and / or downlink data scheduling, and / or downlink data reception is performed within the timer duration or the counter value.

[0443] In actual application, during the operation of the timer or counter, it can be determined whether a synchronization signal / physical broadcast channel block (SSB) and / or other reference symbols are received to determine whether the failure to receive network scheduling or downlink data is due to the base station not obtaining downlink channel resources. If the terminal receives SSB and / or other reference symbols, the timer for frequency domain resource conversion is re-timed or the counter is re-counted.

[0444] Here, for a terminal in a connected state, RRC signaling can also be used to notify the terminal whether it is scheduled, so as to help the terminal distinguish whether the failure to receive network scheduling information within a certain period of time is due to the network not scheduling the terminal or the network failing to obtain downlink channel resources. If the terminal receives the RRC signaling, the timer for frequency domain resource conversion is re-timed or the counter is re-counted.

[0445] In actual application, in order to send data in time, when no LBT is successful on the corresponding frequency domain resources within a certain period of time, frequency domain resource conversion is required.

[0446] Based on this, in one embodiment, when performing LBT on frequency domain resources, the method may further include one of the following:

[0447] If LBT fails within the fifth preset time period, frequency domain resource conversion is performed;

[0448] When the number of LBT failures reaches or exceeds the third threshold, frequency domain resource conversion is performed;

[0449] If the LBT failure rate reaches or exceeds a fourth threshold within a sixth preset time period, frequency domain resource conversion is performed;

[0450] If the LBT success rate reaches or falls below the fifth threshold within the seventh preset time period, the terminal performs frequency domain resource conversion.

[0451] In actual application, a timer or a counter may be set, and if LBT is not successful within the timer duration or the counter value, frequency domain resource switching is performed.

[0452] Here, the duration of the timer or counter may be configured by the network side, for example, through a system message (for a terminal in an idle state), an RRC message (for a terminal in a connected state), and the like.

[0453] The corresponding preset time lengths (such as the fifth preset time length, the sixth preset time length, and the seventh preset time length) may be specified time lengths, or may be obtained through a network.

[0454] The third threshold may be a specified LBT failure number threshold, or may be a LBT failure number threshold issued by the network.

[0455] The fourth threshold may be a prescribed LBT failure rate threshold, or may be an LBT failure rate threshold issued by the network.

[0456] The fifth threshold may be a prescribed LBT success rate threshold, or may be an LBT success rate threshold issued by the network.

[0457] When performing frequency domain resource conversion, the terminal also needs to determine the target frequency domain resource for the frequency domain resource conversion. The target frequency domain resource for the frequency domain resource conversion can be determined according to one of the following methods:

[0458] Autonomously determine target frequency domain resources;

[0459] The frequency domain resources that meet certain threshold requirements are used as target frequency domain resources;

[0460] The target frequency domain resource is determined by using the index of the target frequency domain resource sent by the network.

[0461] Here, the autonomous determination of the target frequency domain resources means that the terminal neither uses the frequency domain resources that meet certain threshold requirements as the target frequency domain resources, nor uses the index of the target frequency domain resources sent by the network to determine the target frequency domain resources, but uses other methods to determine, such as randomly selecting a frequency domain resource as the target frequency domain resource, or it can sort multiple frequency domain resources by itself, and select a frequency domain resource in order as the target frequency domain resource, and so on.

[0462] In actual application, the threshold requirement may include at least one of the following:

[0463] LBT success rate;

[0464] The success rate of LBT within a specific duration;

[0465] Number of LBT successes;

[0466] The number of LBT successes within a specific time period;

[0467] Number of LBT failures;

[0468] The number of LBT failures within a specific time period;

[0469] LBT failure rate;

[0470] LBT failure rate within a specific duration;

[0471] RSRQ;

[0472] SINR;

[0473] RSRP.

[0474] The specific duration can be determined as needed.

[0475] Here, taking the frequency domain resources that meet certain threshold requirements as the target frequency domain resources can be understood as: multiple frequency domain resources determine the frequency domain resource priorities, and the target frequency domain resources are determined according to the frequency domain resource priorities.

[0476] In actual application, in order to obtain the link status in time, when there is no LBT success within a certain period of time on the corresponding frequency domain resources, it is necessary to report the LBT failure. In addition, the terminal can report the wireless link failure to the network side.

[0477] As an implementation method, when the number of radio link failures monitored by the terminal reaches a certain threshold, the terminal reports the radio link failure to the network side;

[0478] As an implementation method, when LBT fails, the terminal physical layer reports the LBT failure to the MAC layer. When the number of LBT failures received by the MAC layer reaches a certain threshold, the terminal considers that a radio link failure is detected (for example, the terminal counts the number of radio link failures and adds 1).

[0479] As an implementation method, when the number of LBT failures reaches a certain threshold (for example, each time an LBT failure is detected, the terminal counts the number of LBT failures by adding 1), the terminal physical layer reports the LBT failure to the MAC layer. When the number of LBT failures received by the MAC layer reaches a certain threshold, the terminal considers that a radio link failure is detected (for example, the terminal counts the number of radio link failures by adding 1).

[0480] Based on this, in one embodiment, when performing LBT on frequency domain resources, the method further includes one of the following:

[0481] If LBT fails within the fifteenth preset time period, the terminal reports a wireless link failure;

[0482] When the number of LBT failures reaches or exceeds the eleventh threshold, the terminal reports a wireless link failure;

[0483] If the LBT failure rate reaches or exceeds the twelfth threshold within the sixteenth preset time period, the terminal reports a wireless link failure;

[0484] If the LBT success rate reaches or falls below the thirteenth threshold within the seventeenth preset time period, the terminal reports a wireless link failure.

[0485] In actual application, a timer or a counter may be set, and if there is no LBT success within the timer duration or the counter value, a wireless link failure is reported.

[0486] Here, the duration of the timer or counter may be configured by the network side, for example, through a system message (for a terminal in an idle state), an RRC message (for a terminal in a connected state), and the like.

[0487] The corresponding preset time lengths (such as the fifteenth preset time length, the sixteenth preset time length, and the seventeenth preset time length) may be specified time lengths or may be obtained through a network.

[0488] The eleventh threshold may be a prescribed LBT failure number threshold, or may be a LBT failure number threshold issued by the network.

[0489] The twelfth threshold may be a prescribed LBT failure rate threshold, or may be an LBT failure rate threshold issued by the network.

[0490] The thirteenth threshold may be a prescribed LBT success rate threshold, or may be an LBT success rate threshold issued by the network.

[0491] In one embodiment, when performing LBT on frequency domain resources, the method further includes one of the following:

[0492] If the LBT fails within the eighteenth preset time period, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0493] When the number of LBT failures reaches or exceeds the fourteenth threshold, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0494] If the LBT failure rate reaches or exceeds the fifteenth threshold within the nineteenth preset time period, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0495] If the LBT success rate reaches or falls below the sixteenth threshold within the twentieth preset time period, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal.

[0496] Here, the duration of the timer or counter may be configured by the network side, for example, through a system message (for a terminal in an idle state), an RRC message (for a terminal in a connected state), and the like.

[0497] The corresponding preset time lengths (such as the eighteenth preset time length, the nineteenth preset time length, and the twentieth preset time length) may be specified time lengths or may be obtained through a network.

[0498] The fourteenth threshold may be a prescribed LBT failure threshold or a LBT failure threshold issued by the network.

[0499] The fifteenth threshold may be a prescribed LBT failure rate threshold or an LBT failure rate threshold issued by the network.

[0500] The sixteenth threshold may be a prescribed LBT success rate threshold, or may be an LBT success rate threshold issued by the network.

[0501] In actual application, the terminal can also report the frequency domain resource information for data transmission, that is, report the ability of the uplink frequency domain resources supported by itself to send data, so that the network side can accurately receive the data, and can also instruct the terminal how to send data on the uplink frequency domain resources based on the capability of the terminal.

[0502] Based on this, in one embodiment, the method may further include:

[0503] Report a third signaling to the network, where the third signaling is used to indicate uplink frequency domain resource information for the terminal to send uplink data.

[0504] The content of the third signaling includes at least one of the following:

[0505] Support data transmission on one uplink frequency domain resource;

[0506] Support data transmission on multiple uplink frequency domain resources;

[0507] Data transmission on multiple uplink frequency domain resources is not supported;

[0508] the number of multiple uplink frequency domain resources for data transmission;

[0509] a maximum number of multiple uplink frequency domain resources for data transmission;

[0510] The uplink frequency domain resource index or frequency domain resource location information for data transmission.

[0511] In actual application, the third signaling may be RRC signaling, etc.

[0512] In one embodiment, the method may further include:

[0513] Receive a fourth signaling sent by the network; the fourth signaling is used to indicate uplink frequency domain resource information for the terminal to send uplink data.

[0514] The content of the fourth signaling includes at least one of the following:

[0515] The number of uplink frequency domain resources for data transmission;

[0516] The maximum number of uplink frequency domain resources for data transmission;

[0517] The uplink frequency domain resource index or frequency domain resource location information for data transmission.

[0518] Here, in actual application, the fourth signaling may be RRC signaling, etc.

[0519] Accordingly, an embodiment of the present invention further provides a data transmission method, which is applied to a network device, such as Figure 2 As shown, the method includes:

[0520] Step 201: configuring multiple frequency domain resources for a terminal;

[0521] For example, multiple working BWPs are configured; specifically, multiple initial BWPs are configured for the terminal and / or multiple BWPs are activated.

[0522] Here, the network device may be a base station. In a 5G system, the base station is a next generation Node B (gNB).

[0523] Step 202: perform corresponding LBT for multiple frequency domain resources, send data after LBT is successful, and receive data on the uplink BWP.

[0524] Specifically, for multiple frequency domain resources, the network device can select one uplink frequency domain resource for LBT, or select multiple uplink frequency domain resources for LBT; accordingly, the uplink frequency domain resource for sending data can be one or more; the downlink frequency domain resource for receiving data can be one or more.

[0525] Specifically, the network device has the following implementation processes:

[0526] The first method is to perform LBT on multiple downlink frequency domain resources, send data on one downlink frequency domain resource, and receive data on one uplink frequency domain resource;

[0527] The second method is to perform LBT on multiple downlink frequency domain resources, send data on multiple downlink frequency domain resources, and receive data on one uplink frequency domain resource;

[0528] The third type is to perform LBT on multiple downlink frequency domain resources, send data on multiple downlink frequency domain resources, and receive data on multiple uplink frequency domain resources;

[0529] The fourth method is to perform LBT on multiple downlink frequency domain resources, send data on one downlink frequency domain resource, and receive data on multiple uplink frequency domain resources;

[0530] The fifth type is to perform LBT on a downlink frequency domain resource, send data on a downlink frequency domain resource, and receive data on an uplink frequency domain resource;

[0531] The sixth type is to perform LBT on one downlink frequency domain resource, send data on multiple downlink frequency domain resources, and receive data on one uplink frequency domain resource.

[0532] The uplink frequency domain resources are part of the uplink bandwidth; and the downlink frequency domain resources are part of the downlink bandwidth.

[0533] Here, the partial bandwidth includes: BWP and / or partial bandwidth within BWP.

[0534] In actual application, one of the above implementation processes can be selected as needed.

[0535] In actual application, when the terminal is in an idle state, data transmission and reception are mainly data transmission and reception in a random access process, such as MSG1, MSG2, MSG3 and MSG4.

[0536] When the terminal is in a connected state, the sending and receiving of data may include: sending and receiving of service data, or other data (such as scheduling information, etc.), and the like.

[0537] In actual application, when the number of downlink frequency domain resources for sending data is the same as the number of uplink frequency domain resources for receiving data (for example, both are 1), there may be a certain relationship between the downlink frequency domain resources for sending data and the uplink frequency domain resources for receiving data.

[0538] Specifically, in a TDD system, the relationship between the two may be that the uplink frequency domain resources and the downlink frequency domain resources have the same frequency domain resource index, or the uplink frequency domain resources and the downlink frequency domain resources may have different frequency domain resource indexes.

[0539] In an FDD system, the relationship between the two may be a pairing relationship of uplink and downlink frequency domain resources, or may be a relationship in which there is no pairing relationship of uplink and downlink frequency domain resources.

[0540] In actual application, in a TDD system, the network device may preferentially receive uplink data on the uplink frequency domain resources corresponding to the downlink frequency domain resources (having the same frequency domain resource index as the downlink frequency domain resources).

[0541] In an FDD system, the network device may preferentially receive uplink data on uplink frequency domain resources paired with downlink frequency domain resources.

[0542] In one embodiment, LBT is performed on multiple downlink frequency domain resources, and sending downlink data on one downlink frequency domain resource includes one of the following:

[0543] Data is sent on the frequency domain resource where LBT succeeds first;

[0544] Data is sent on a frequency domain resource with the highest LBT success rate;

[0545] Sending data on a frequency domain resource with the highest LBT success rate within an eighth preset time length;

[0546] Sending data on a frequency domain resource having the highest number of LBT successes within a ninth preset time period;

[0547] Data is sent on a frequency domain resource that meets a sixth threshold requirement.

[0548] Here, in actual application, the network device may select a downlink frequency domain resource for data transmission as needed.

[0549] In one embodiment, LBT is performed on multiple downlink frequency domain resources, and the performing downlink data transmission on multiple downlink frequency domain resources includes one of the following:

[0550] Data is transmitted on multiple frequency domain resources where LBT is successful;

[0551] Data is sent on multiple frequency domain resources with a higher LBT success rate;

[0552] Send data on multiple frequency domain resources with higher LBT success times;

[0553] Sending data on multiple frequency domain resources with a higher LBT success rate within the tenth preset time length;

[0554] Sending data on multiple frequency domain resources with a higher number of LBT successes within the eleventh preset time length;

[0555] Data is sent on frequency domain resources that meet the seventh threshold requirement.

[0556] In actual application, the corresponding threshold requirements (such as the sixth threshold and the seventh threshold) include at least one of the following:

[0557] LBT success rate;

[0558] LBT success rate within the preset time;

[0559] Number of LBT successes;

[0560] The number of LBT successes within the preset time period;

[0561] Number of LBT failures;

[0562] The number of LBT failures within the preset time period;

[0563] LBT failure rate;

[0564] LBT failure rate within a preset time period;

[0565] RSRQ;

[0566] SINR;

[0567] RSRP.

[0568] In actual application, the data transmission on the frequency domain resources that meet the sixth and seventh threshold requirements can be understood as: multiple frequency domain resources determine the frequency domain resource priority, and the target frequency domain resource is determined for data transmission according to the frequency domain resource priority.

[0569] When the network device sends data on multiple downlink frequency domain resources, for an idle terminal, MSG2 can be sent on multiple frequency domain resources that obtain channel resources; for MSG4, the network side selects one frequency domain resource to send. The network's selection decision can be determined by the LBT success rate and / or interference conditions, etc. (which can be understood as being determined based on the priority ranking of frequency domain resources).

[0570] In actual application, the network device can send some information to the terminal to enable the terminal to perform data transmission, such as performing LBT on the corresponding frequency domain resources, selecting uplink frequency domain resources for sending data, selecting frequency domain resources for LBT, etc.

[0571] Based on this, in one embodiment, the method may further include:

[0572] Send at least one of the following information to the terminal:

[0573] A first preset duration; the first preset duration is used for the terminal to determine a frequency domain resource with the highest LBT success rate within the first preset duration for data transmission;

[0574] A second preset duration, where the second preset duration is used for the terminal to determine a frequency domain resource with the highest number of LBT successes within the second preset duration for data transmission;

[0575] A third preset duration, where the third preset duration is used for the terminal to determine a plurality of frequency domain resources with a higher LBT success rate within the third preset duration for data transmission;

[0576] LBT success rate threshold; the first LBT success rate threshold is used for the terminal to determine a plurality of frequency domain resources with a higher LBT success rate within a third preset time length for data transmission;

[0577] The number of first frequency domain resources for data transmission; the second frequency domain resource data is used for the terminal to determine multiple frequency domain resources with a higher LBT success rate within a third preset time length for data transmission;

[0578] a first maximum value of the number of frequency domain resources for data transmission; the first maximum value is used by the terminal to determine a plurality of frequency domain resources with a higher LBT success rate within a third preset time length for data transmission;

[0579] a fourth preset duration, where the fourth preset duration is used by the terminal to determine a plurality of frequency domain resources with a higher number of LBT successes within the fourth preset duration for data transmission;

[0580] LBT success number threshold; the success number threshold is used for the terminal to determine a plurality of frequency domain resources with a higher number of LBT successes within a fourth preset time length for data transmission;

[0581] The number of second frequency domain resources for data transmission; the second frequency domain resource data is used for the terminal to determine multiple frequency domain resources with a higher number of LBT successes within a fourth preset time length for data transmission;

[0582] a second maximum value of the number of frequency domain resources for data transmission; the second maximum value is used for the terminal to determine a plurality of frequency domain resources with a higher number of LBT successes within a fourth preset duration for data transmission;

[0583] A first threshold requirement; the first threshold requirement is used for the terminal to determine a frequency domain resource for data transmission;

[0584] A second threshold requirement; the second threshold requirement is used by the terminal to determine a plurality of frequency domain resources for data transmission;

[0585] The fifth preset duration; the fifth preset duration is used for the terminal to determine whether LBT is successful for a frequency domain resource within the fifth preset duration;

[0586] The sixth preset duration; the sixth preset duration is used for the terminal to determine the failure rate of LBT for a frequency domain resource within the sixth preset duration;

[0587] A seventh preset duration; the seventh preset duration is used for the terminal to determine a success rate of LBT for a frequency domain resource within the seventh preset duration;

[0588] The third threshold is used for the terminal to determine whether the number of LBT failures reaches or exceeds the third threshold to determine whether to perform frequency domain resource conversion;

[0589] The fourth threshold is used by the terminal to determine whether the LBT failure rate reaches or exceeds the fourth threshold within the sixth preset time length to determine whether to perform frequency domain resource conversion;

[0590] The fifth threshold is used by the terminal to determine whether the LBT success rate reaches or is lower than the fifth threshold within the seventh preset time length, so as to determine whether to perform frequency domain resource conversion;

[0591] The fifteenth preset time length; the fifteenth preset time length is used for the terminal to determine whether a frequency domain resource is successfully LBT within the fifteenth preset time length;

[0592] A sixteenth preset duration; the sixteenth preset duration is used by the terminal to determine a failure rate of LBT for a frequency domain resource within the sixteenth preset duration;

[0593] The seventeenth preset duration; the seventeenth preset duration is used for the terminal to determine the success rate of LBT for a frequency domain resource within the seventeenth preset duration;

[0594] The eleventh threshold; the eleventh threshold is used for the terminal to determine whether the number of LBT failures reaches or exceeds the eleventh threshold to determine whether to report the radio link failure;

[0595] The twelfth threshold; the twelfth threshold is used by the terminal to determine whether the LBT failure rate reaches or exceeds the twelfth threshold within the sixteenth preset time length, so as to determine whether to report the wireless link failure;

[0596] The thirteenth threshold; the thirteenth threshold is used by the terminal to determine whether the LBT success rate reaches or is lower than the thirteenth threshold within the seventeenth preset time length, so as to determine whether to report the wireless link failure;

[0597] An eighteenth preset duration; the eighteenth preset duration is used for the terminal to determine whether LBT is successful for a frequency domain resource within the eighteenth preset duration;

[0598] A nineteenth preset duration; the nineteenth preset duration is used by the terminal to determine a failure rate of LBT for a frequency domain resource within the nineteenth preset duration;

[0599] The twentieth preset duration; the twentieth preset duration is used by the terminal to determine the success rate of LBT for a frequency domain resource within the twentieth preset duration;

[0600] The fourteenth threshold is used for the terminal to determine whether the number of LBT failures reaches or exceeds the fourteenth threshold to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0601] The twelfth threshold; the twelfth threshold is used by the terminal to determine whether the LBT failure rate reaches or exceeds the twelfth threshold within the sixteenth preset time length, so as to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0602] The thirteenth threshold; the thirteenth threshold is used by the terminal to determine whether the LBT success rate reaches or is lower than the thirteenth threshold within the seventeenth preset time length, so as to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0603] The maximum number of uplink frequency domain resources;

[0604] The number of uplink frequency domain resources;

[0605] The index of the target frequency domain resource for frequency domain resource switching when the uplink frequency domain resource performs BLT.

[0606] In actual application, the terminal can report its own uplink frequency domain resource information for LBT so that the network device can be aware of it and can receive the sent data in time.

[0607] Based on this, in one embodiment, the method may further include:

[0608] A first signaling reported by a receiving terminal; the first signaling is used to indicate frequency domain resource information for the terminal to perform LBT.

[0609] In actual application, the network device may also send downlink frequency domain resource information to the terminal so that the terminal can obtain the information and then receive the data sent by the network device in a timely manner.

[0610] Based on this, in one embodiment, the method may further include:

[0611] A second signaling is sent to the terminal; the second signaling is used to instruct the terminal to receive downlink frequency domain resource information of downlink data.

[0612] Here, the second signaling may be RRC signaling, broadcast (PBCH), system message, etc.

[0613] The content of the second signaling includes at least one of the following:

[0614] Receiving data on a downlink frequency domain resource;

[0615] Not receiving data on a downlink frequency domain resource;

[0616] Receiving data on multiple downlink frequency domain resources;

[0617] Not receiving data on multiple downlink frequency domain resources;

[0618] The number of frequency domain resources for receiving downlink data;

[0619] Receive the frequency domain resource index or frequency domain resource location information of the downlink data.

[0620] During the working process of each frequency domain resource, a timer or counter can be introduced. If no data is sent (downlink frequency domain resources) or received (uplink frequency domain resources) within the timer duration or the counter value, the frequency domain resources are switched. For example, the frequency domain resources can be switched according to the priority order of the frequency domain resources.

[0621] Here, when sending downlink data, corresponding SSB and / or other reference symbols may be sent to the terminal so that the terminal can judge whether the failure to receive network scheduling or downlink data is due to the base station not acquiring downlink channel resources. If the terminal receives SSB and / or other reference symbols, the timer for frequency domain resource conversion is re-timed or the counter is re-counted.

[0622] Here, for a terminal in a connected state, RRC signaling can also be used to notify the terminal whether it is scheduled, so as to help the terminal distinguish whether the failure to receive network scheduling information within a certain period of time is due to the network not scheduling the terminal or the network failing to obtain downlink channel resources. If the terminal receives the RRC signaling, the timer for frequency domain resource conversion is re-timed or the counter is re-counted.

[0623] In actual application, in order to send data in time, when no LBT is successful on the corresponding frequency domain resources within a certain period of time, frequency domain resource conversion is required.

[0624] Based on this, in one embodiment, when performing LBT on frequency domain resources, the method may further include one of the following:

[0625] If LBT is unsuccessful within the twelfth preset time period, frequency domain resource conversion is performed;

[0626] When the number of LBT failures reaches or exceeds the eighth threshold, frequency domain resource conversion is performed;

[0627] If the LBT failure rate reaches or exceeds the ninth threshold within the thirteenth preset time period, frequency domain resource conversion is performed;

[0628] If the LBT success rate reaches or is lower than the tenth threshold within the fourteenth preset time period, frequency domain resource conversion is performed.

[0629] In actual application, a timer or a counter may be set, and if LBT is not successful within the timer duration or the counter value, frequency domain resource switching is performed.

[0630] When performing frequency domain resource conversion, the network device also needs to determine the target frequency domain resource for the frequency domain resource conversion. The target frequency domain resource for the frequency domain resource conversion can be determined according to one of the following methods:

[0631] Autonomously determine target frequency domain resources;

[0632] The frequency domain resources that meet certain threshold requirements are used as target frequency domain resources.

[0633] Here, the autonomous determination of the target frequency domain resources means that the network device does not use the frequency domain resources that meet certain threshold requirements as the target frequency domain resources, but uses other methods to determine, such as randomly selecting a frequency domain resource as the target frequency domain resource, or it can sort multiple frequency domain resources by itself, and select a frequency domain resource in order as the target frequency domain resource, and so on.

[0634] In actual application, the threshold requirement may include at least one of the following:

[0635] LBT success rate;

[0636] The success rate of LBT within a specific duration;

[0637] Number of LBT successes;

[0638] The number of LBT successes within a specific time period;

[0639] Number of LBT failures;

[0640] The number of LBT failures within a specific time period;

[0641] LBT failure rate;

[0642] LBT failure rate within a specific duration;

[0643] RSRQ;

[0644] SINR;

[0645] RSRP.

[0646] The specific duration can be determined as needed.

[0647] Here, taking the frequency domain resources that meet certain threshold requirements as the target frequency domain resources can be understood as: multiple frequency domain resources determine the frequency domain resource priorities, and the target frequency domain resources are determined according to the frequency domain resource priorities.

[0648] In actual application, the terminal can also report the frequency domain resource information for data transmission, that is, report the ability of the uplink frequency domain resources supported by itself to send data, so that the network equipment can accurately receive the data, and can also instruct the terminal how to send data on the uplink frequency domain resources based on the capability of the terminal.

[0649] Based on this, in one embodiment, the method may further include:

[0650] A third signaling reported by a receiving terminal is used to indicate uplink frequency domain resource information for uplink data transmission by the terminal.

[0651] In one embodiment, the method may further include:

[0652] A fourth signaling is sent to the terminal; the fourth signaling is used to indicate uplink frequency domain resource information for the terminal to send uplink data.

[0653] In actual application, the fourth signaling may be RRC signaling, broadcast (PBCH), system message, etc.

[0654] The embodiment of the present invention also provides a data transmission method, such as Figure 3 As shown, the method includes:

[0655] Step 300: The network device configures a plurality of working frequency domain resources for the terminal;

[0656] Specifically, multiple initial frequency domain resources are configured for the terminal and / or multiple frequency domain resources are activated.

[0657] Step 301: the terminal performs corresponding LBT on multiple frequency domain resources, sends data after LBT is successful, and receives data on downlink frequency domain resources;

[0658] Step 302: The network device performs corresponding LBT on multiple frequency domain resources, sends data after LBT is successful, and receives data on uplink frequency domain resources.

[0659] Here, it should be noted that there is no order in which step 301 and step 302 are executed.

[0660] In addition, the specific processing process of the terminal and the network device has been described in detail above and will not be repeated here.

[0661] According to the method provided in the embodiment of the present invention, the terminal performs corresponding LBT on multiple frequency domain resources, sends data after successful LBT, and receives data on downlink frequency domain resources, while the network device performs corresponding LBT on multiple frequency domain resources, sends data after successful LBT, and receives data on downlink frequency domain resources. Since multiple working frequency domain resources are configured and LBT is performed before sending data, the opportunity of the 5G system to obtain channel resources can be greatly increased, thereby ensuring system performance.

[0662] The present invention is further described in detail below in conjunction with application examples.

[0663] In the application embodiment, BWP is taken as an example to illustrate the data transmission process based on frequency domain resources.

[0664] Application Example 1

[0665] In this application embodiment, the terminal is in an idle state, and the network configures three initial downlink BWPs for the terminal, namely BWP-1, BWP-2, and BWP-3; at the same time, the working priorities of the three BWPs are BWP-1>BWP-2>BWP-3, that is, BWP-1 has the highest priority, BWP-2 has the second highest priority, and BWP-3 has the lowest priority. In addition, the network also configures a timer for the terminal, and the timers corresponding to BWP-1 and BWP-2 are timer1 and timer2 respectively.

[0666] The terminal first works on BWP-1 and starts timer1. If timer1 expires and the terminal does not receive SIB1 and / or does not receive MSG2 or MSG4 of random access on BWP-1, the terminal switches to BWP-2 and starts timer2. If timer2 expires and the terminal does not receive SIB1 on BWP-2, the terminal switches to BWP-3 to work.

[0667] Application Example 2

[0668] In this application embodiment, the terminal is in an idle state, and the network configures three initial uplink BWPs for the terminal, namely BWP-1, BWP-2, and BWP-3; at the same time, the working priorities of the three BWPs are BWP-1>BWP-2>BWP-3, that is, BWP-1 has the highest priority, BWP-2 has the second highest priority, and BWP-3 has the lowest priority. In addition, the network also configures a counter for the terminal, and the timers corresponding to BWP-1 and BWP-2 are counter1 and counter2 respectively.

[0669] The terminal first works on BWP-1 and starts counter1. If counter1 expires and the terminal does not obtain a channel to send MSG1 or MSG3 on BWP-1, the terminal switches to BWP-2 and starts counter2. If counter2 expires and the terminal does not obtain a channel to send MSG1 or MSG3 on BWP-2, the terminal switches to BWP-3 to work.

[0670] Application Example 3

[0671] In this application embodiment, the terminal is in a connected state, and the network configures four downlink BWPs for the terminal, namely BWP-1, BWP-2, BWP-3, and BWP-4; the working priorities of the four BWPs are BWP-1>BWP-2>BWP-3>BWP-4, that is, BWP-1 has the highest priority, BWP-2 has the second highest priority, BWP-3 has the third highest priority, and BWP-4 has the lowest priority. In addition, the network also configures timers for the terminal, and the timers corresponding to BWP-1, BWP-2, and BWP-3 are timer1, timer2, and timer3, respectively.

[0672] The terminal first works on BWP-1 and starts timer1. If timer1 expires and the terminal does not receive SSB and / or other reference symbols and / or RRC signaling and / or downlink scheduling and / or downlink data notifying the terminal whether it is scheduled on BWP-1, then the terminal switches to BWP-2 and starts timer2. If timer2 expires and the terminal does not receive SSB and / or other reference symbols and / or RRC signaling and / or downlink scheduling and / or downlink data notifying the terminal whether it is scheduled on BWP-2, then the terminal switches to BWP-3 and starts timer3. If timer3 expires and the terminal does not receive SSB and / or other reference symbols and / or RRC signaling and / or downlink scheduling and / or downlink data notifying the terminal whether it is scheduled on BWP-3, then the terminal switches to BWP-4 to work.

[0673] Application Example 4

[0674] In this application embodiment, the terminal is in a connected state, and the network configures four uplink BWPs for the terminal, namely BWP-1, BWP-2, BWP-3, and BWP-4; the working priorities of the four BWPs are BWP-1>BWP-2>BWP-3>BWP-4, that is, BWP-1 has the highest priority, BWP-2 has the second highest priority, BWP-3 has the third highest priority, and BWP-4 has the lowest priority. In addition, the network also configures timers for the terminal, and the timers corresponding to BWP-1, BWP-2, and BWP-3 are timer1, timer2, and timer3, respectively.

[0675] The terminal first works on BWP-1 and starts timer1. If timer1 expires, the terminal does not obtain channel resources on BWP-1 and cannot send uplink data, then the terminal switches to BWP-2 and starts timer2. If timer2 expires, the terminal does not obtain channel resources on BWP-2 and cannot send uplink data, then the terminal switches to BWP-3 and starts timer3. If timer3 expires, the terminal does not obtain channel resources on BWP-3 and cannot send uplink data, then the terminal switches to BWP-4 to work.

[0676] From the above description, it can be seen that multiple BWPs have working priorities, and a BWP conversion timer and counter are introduced. After the timer or counter expires, the terminal automatically switches to the BWP with the next priority according to the BWP priority. The terminal receives system messages and paging according to the priority configuration, completes random access, and transmits and receives uplink and downlink data.

[0677] To implement the method on the terminal side of the embodiment of the present invention, the embodiment of the present invention further provides a data device, which is arranged on the terminal, such as Figure 4 As shown, the device includes: a first listening unit 41 and a first transceiver unit 42; wherein,

[0678] The first listening unit 41 is used to perform LBT on multiple uplink frequency domain resources; the first transceiver unit 42 is used to send data on an uplink frequency domain resource and receive data on a downlink frequency domain resource; or,

[0679] The first listening unit 41 is used to perform LBT on multiple uplink frequency domain resources; the first transceiver unit 42 is used to send data on one uplink frequency domain resource and receive data on multiple downlink frequency domain resources; or,

[0680] The first listening unit 41 is used to perform LBT on multiple uplink frequency domain resources; the first transceiver unit 42 is used to send data on multiple uplink frequency domain resources and receive data on multiple downlink frequency domain resources; or,

[0681] The first listening unit 41 is used to perform LBT on multiple uplink frequency domain resources; the first transceiver unit 42 is used to send data on multiple uplink frequency domain resources and receive data on one downlink frequency domain resource; or,

[0682] The first listening unit 41 is used to perform LBT on an uplink frequency domain resource; the first transceiver unit 42 is used to send data on an uplink frequency domain resource and receive data on a downlink frequency domain resource; or,

[0683] The first listening unit 41 is used to perform LBT on an uplink frequency domain resource; the first transceiver unit 42 is used to send data on an uplink frequency domain resource and receive data on multiple downlink frequency domain resources.

[0684] In one embodiment, LBT is performed on multiple uplink frequency domain resources, and the first transceiver unit 42 sends data on one uplink frequency domain resource, including one of the following:

[0685] Data is sent on the frequency domain resource where LBT succeeds first;

[0686] Data is sent on a frequency domain resource with the highest LBT success rate;

[0687] Sending data on a frequency domain resource with the highest LBT success rate within a first preset time length;

[0688] Sending data on a frequency domain resource having the highest number of LBT successes within a second preset time duration;

[0689] Data is sent on a frequency domain resource that meets a first threshold requirement.

[0690] In one embodiment, LBT is performed on multiple uplink frequency domain resources, and the first transceiver unit 42 sends data on the multiple uplink frequency domain resources, including one of the following:

[0691] Data is transmitted on multiple frequency domain resources where LBT is successful;

[0692] Data is sent on multiple frequency domain resources with a higher LBT success rate;

[0693] Send data on multiple frequency domain resources with higher LBT success times;

[0694] Sending data on multiple frequency domain resources with a higher LBT success rate within a third preset time length;

[0695] Sending data on multiple frequency domain resources with a higher number of LBT successes within a fourth preset time length;

[0696] Data is sent on frequency domain resources that meet the second threshold requirement.

[0697] In one embodiment, when data is sent on multiple frequency domain resources with a higher LBT success rate within the third preset time length, the first transceiver unit 42 is further used to:

[0698] Receive at least one of the following information sent by the network:

[0699] LBT success rate threshold;

[0700] The number of first frequency domain resources for data transmission;

[0701] The first maximum value of the number of frequency domain resources for data transmission.

[0702] Here, the first transceiver unit 42 can use the above information received from the network side to further determine multiple frequency domain resources with a higher LBT success rate within a third preset time period for data transmission.

[0703] In one embodiment, when data is sent on multiple frequency domain resources with a higher number of LBT successes within a fourth preset time length, the first transceiver unit 42 is further used to:

[0704] Receive at least one of the following information sent by the network:

[0705] The second LBT success number threshold;

[0706] The number of second frequency domain resources for data transmission;

[0707] The second maximum value of the number of frequency domain resources for data transmission.

[0708] Here, the first transceiver unit 42 can use the above information received from the network side to further determine multiple frequency domain resources with a higher number of LBT successes within a third preset time period for data transmission.

[0709] In actual application, the first listening unit 41 can obtain information of multiple uplink frequency domain resources so as to perform LBT on the multiple uplink frequency domain resources.

[0710] Based on this, in one embodiment, the first listening unit 41 acquires information of multiple uplink frequency domain resources of LBT including at least one of the following:

[0711] The specified number of uplink frequency domain resources for LBT;

[0712] The maximum number of uplink frequency domain resources specified for LBT;

[0713] The number of uplink frequency domain resources for LBT issued by the network;

[0714] The maximum number of uplink frequency domain resources for LBT sent by the network.

[0715] In actual application, the terminal can report its own uplink frequency domain resource information for LBT so that the network equipment can be informed and receive the sent data in time.

[0716] Based on this, in one embodiment, the first transceiver unit 42 is further used to report a first signaling to the network, where the first signaling is used to indicate frequency domain resource information for performing LBT on the terminal.

[0717] In actual application, the network may also send downlink frequency domain resource information to the terminal so that the terminal can obtain the information and then receive the data sent by the network in a timely manner.

[0718] Based on this, in one embodiment, the first transceiver unit 42 is further used to receive a second signaling sent by the network; the second signaling is used to indicate the downlink frequency domain resource information for receiving downlink data.

[0719] In actual application, in order to send data in time, when no LBT is successful on the corresponding frequency domain resources within a certain period of time, frequency domain resource conversion is required.

[0720] Based on this, in one embodiment, the first listening unit 41 is further configured to perform one of the following operations when performing LBT on frequency domain resources:

[0721] If LBT fails within the fifth preset time period, frequency domain resource conversion is performed;

[0722] When the number of LBT failures reaches or exceeds the third threshold, frequency domain resource conversion is performed;

[0723] If the LBT failure rate reaches or exceeds a fourth threshold within a sixth preset time period, frequency domain resource conversion is performed;

[0724] If the LBT success rate reaches or is lower than the fifth threshold within the seventh preset time period, frequency domain resource conversion is performed.

[0725] When performing frequency domain resource conversion, the first listening unit 41 also needs to determine the target frequency domain resource for the frequency domain resource conversion. The target frequency domain resource for the frequency domain resource conversion can be determined according to one of the following methods:

[0726] Autonomously determine target frequency domain resources;

[0727] The frequency domain resources that meet certain threshold requirements are used as target frequency domain resources;

[0728] The target frequency domain resource is determined by using the index of the target frequency domain resource sent by the network.

[0729] In actual application, in order to obtain the link status in time, when no LBT is successful within a certain period of time on the corresponding frequency domain resources, it is necessary to report the wireless link failure. At the same time, the report can be reported by the terminal to the network side.

[0730] Based on this, in one embodiment, the first listening unit 41 is further configured to perform one of the following operations when performing LBT on frequency domain resources:

[0731] If LBT fails within the fifteenth preset time, the wireless link fails.

[0732] When the number of LBT failures reaches or exceeds the eleventh threshold, a wireless link failure is reported;

[0733] If the LBT failure rate reaches or exceeds the twelfth threshold within the sixteenth preset time period, a wireless link failure is reported;

[0734] If the LBT success rate reaches or falls below the thirteenth threshold within the seventeenth preset time period, a wireless link failure is reported.

[0735] In one embodiment, the first listening unit 41 is further configured to perform one of the following operations when performing LBT on frequency domain resources:

[0736] If the LBT fails within the eighteenth preset time period, the physical layer of the terminal reports the LBT failure to the medium access control MAC layer of the terminal;

[0737] When the number of LBT failures reaches or exceeds the fourteenth threshold, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0738] If the LBT failure rate reaches or exceeds the fifteenth threshold within the nineteenth preset time period, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0739] If the LBT success rate reaches or falls below the sixteenth threshold within the twentieth preset time period, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal.

[0740] In actual application, the frequency domain resource information of the terminal for data transmission can also be reported, that is, the ability of the terminal itself to support uplink frequency domain resources for data transmission can be reported so that the network side can accurately receive the data. The terminal can also be instructed how to send data on the uplink frequency domain resources based on the terminal's capabilities.

[0741] Based on this, in one embodiment, the first transceiver unit 42 is further used to report a third signaling to the network, where the third signaling is used to indicate uplink frequency domain resource information for the terminal to send uplink data.

[0742] In one embodiment, the first transceiver unit 42 is further used to receive a fourth signaling sent by the network; the fourth signaling is used to indicate uplink frequency domain resource information for the terminal to send uplink data.

[0743] In actual application, the first listening unit 41 can be implemented by a processor in a data transmission device in combination with a communication interface; the first transceiver unit 42 can be implemented by a processor in a data transmission device in combination with a communication interface.

[0744] To implement the method on the network device side of the embodiment of the present invention, the embodiment of the present invention also provides a data transmission device, which is arranged on the network device, such as Figure 5 As shown, the device includes: a second listening unit 51 and a second transceiver unit 52; wherein,

[0745] The second listening unit 51 is used to perform LBT on multiple downlink frequency domain resources; the second transceiver unit 52 is used to send data on a downlink frequency domain resource and receive data on an uplink frequency domain resource; or,

[0746] The second listening unit 51 is used to perform LBT on multiple downlink frequency domain resources; the second transceiver unit 52 is used to send data on multiple downlink frequency domain resources and receive data on one uplink frequency domain resource; or,

[0747] The second listening unit 51 is used to perform LBT on multiple downlink frequency domain resources; the second transceiver unit 52 is used to send data on multiple downlink frequency domain resources and receive data on multiple uplink frequency domain resources; or,

[0748] The second listening unit 51 is used to perform LBT on multiple downlink frequency domain resources; the second transceiver unit 52 is used to send data on one downlink frequency domain resource and receive data on multiple uplink frequency domain resources; or,

[0749] The second listening unit 51 is used to perform LBT on a downlink frequency domain resource; the second transceiver unit 52 is used to send data on a downlink frequency domain resource and receive data on an uplink frequency domain resource; or,

[0750] The second listening unit 51 is used to perform LBT on a downlink frequency domain resource; the second transceiver unit 52 is used to send data on multiple downlink frequency domain resources and receive data on an uplink frequency domain resource.

[0751] In one embodiment, LBT is performed on multiple downlink frequency domain resources, and the second transceiver unit 52 sends downlink data on one downlink frequency domain resource, including one of the following:

[0752] Data is sent on the frequency domain resource where LBT succeeds first;

[0753] Data is sent on a frequency domain resource with the highest LBT success rate;

[0754] Sending data on a frequency domain resource with the highest LBT success rate within an eighth preset time length;

[0755] Sending data on a frequency domain resource having the highest number of LBT successes within a ninth preset time period;

[0756] Data is sent on a frequency domain resource that meets a sixth threshold requirement.

[0757] In one embodiment, LBT is performed on multiple downlink frequency domain resources, and the second transceiver unit 52 performs downlink data transmission on multiple downlink frequency domain resources, including one of the following:

[0758] Data is transmitted on multiple frequency domain resources where LBT is successful;

[0759] Data is sent on multiple frequency domain resources with a higher LBT success rate;

[0760] Send data on multiple frequency domain resources with higher LBT success times;

[0761] Sending data on multiple frequency domain resources with a higher LBT success rate within the tenth preset time length;

[0762] Sending data on multiple frequency domain resources with a higher number of LBT successes within the eleventh preset time length;

[0763] Data is sent on frequency domain resources that meet the seventh threshold requirement.

[0764] In actual application, the network device can send some information to the terminal to enable the terminal to perform data transmission, such as performing LBT on the corresponding frequency domain resources, selecting uplink frequency domain resources for sending data, selecting frequency domain resources for LBT, etc.

[0765] Based on this, in one embodiment, the second transceiver unit 52 is further configured to send at least one of the following information to the terminal:

[0766] A first preset duration; the first preset duration is used for the terminal to determine a frequency domain resource with the highest LBT success rate within the first preset duration for data transmission;

[0767] A second preset duration, where the second preset duration is used for the terminal to determine a frequency domain resource with the highest number of LBT successes within the second preset duration for data transmission;

[0768] A third preset duration, where the third preset duration is used for the terminal to determine a plurality of frequency domain resources with a higher LBT success rate within the third preset duration for data transmission;

[0769] LBT success rate threshold; the first LBT success rate threshold is used for the terminal to determine a plurality of frequency domain resources with a higher LBT success rate within a third preset time length for data transmission;

[0770] The number of first frequency domain resources for data transmission; the second frequency domain resource data is used for the terminal to determine multiple frequency domain resources with a higher LBT success rate within a third preset time length for data transmission;

[0771] a first maximum value of the number of frequency domain resources for data transmission; the first maximum value is used by the terminal to determine a plurality of frequency domain resources with a higher LBT success rate within a third preset time length for data transmission;

[0772] a fourth preset duration, where the fourth preset duration is used by the terminal to determine a plurality of frequency domain resources with a higher number of LBT successes within the fourth preset duration for data transmission;

[0773] LBT success number threshold; the success number threshold is used for the terminal to determine a plurality of frequency domain resources with a higher number of LBT successes within a fourth preset time length for data transmission;

[0774] The number of second frequency domain resources for data transmission; the second frequency domain resource data is used for the terminal to determine multiple frequency domain resources with a higher number of LBT successes within a fourth preset time length for data transmission;

[0775] a second maximum value of the number of frequency domain resources for data transmission; the second maximum value is used for the terminal to determine a plurality of frequency domain resources with a higher number of LBT successes within a fourth preset duration for data transmission;

[0776] A first threshold requirement; the first threshold requirement is used for the terminal to determine a frequency domain resource for data transmission;

[0777] A second threshold requirement; the second threshold requirement is used by the terminal to determine a plurality of frequency domain resources for data transmission;

[0778] The fifth preset duration; the fifth preset duration is used for the terminal to determine whether LBT is successful for a frequency domain resource within the fifth preset duration;

[0779] The sixth preset duration; the sixth preset duration is used for the terminal to determine the failure rate of LBT for a frequency domain resource within the sixth preset duration;

[0780] A seventh preset duration; the seventh preset duration is used for the terminal to determine a success rate of LBT for a frequency domain resource within the seventh preset duration;

[0781] The third threshold is used for the terminal to determine whether the number of LBT failures reaches or exceeds the third threshold to determine whether to perform frequency domain resource conversion;

[0782] The fourth threshold is used by the terminal to determine whether the LBT failure rate reaches or exceeds the fourth threshold within the sixth preset time length to determine whether to perform frequency domain resource conversion;

[0783] The fifth threshold is used by the terminal to determine whether the LBT success rate reaches or is lower than the fifth threshold within the seventh preset time length, so as to determine whether to perform frequency domain resource conversion;

[0784] The fifteenth preset time length; the fifteenth preset time length is used for the terminal to determine whether a frequency domain resource is successfully LBT within the fifteenth preset time length;

[0785] A sixteenth preset duration; the sixteenth preset duration is used by the terminal to determine a failure rate of LBT for a frequency domain resource within the sixteenth preset duration;

[0786] The seventeenth preset duration; the seventeenth preset duration is used for the terminal to determine the success rate of LBT for a frequency domain resource within the seventeenth preset duration;

[0787] The eleventh threshold; the eleventh threshold is used for the terminal to determine whether the number of LBT failures reaches or exceeds the eleventh threshold to determine whether to report the radio link failure;

[0788] The twelfth threshold; the twelfth threshold is used by the terminal to determine whether the LBT failure rate reaches or exceeds the twelfth threshold within the sixteenth preset time length, so as to determine whether to report the wireless link failure;

[0789] The thirteenth threshold; the thirteenth threshold is used by the terminal to determine whether the LBT success rate reaches or is lower than the thirteenth threshold within the seventeenth preset time length, so as to determine whether to report the wireless link failure;

[0790] An eighteenth preset duration; the eighteenth preset duration is used for the terminal to determine whether LBT is successful for a frequency domain resource within the eighteenth preset duration;

[0791] A nineteenth preset duration; the nineteenth preset duration is used by the terminal to determine a failure rate of LBT for a frequency domain resource within the nineteenth preset duration;

[0792] The twentieth preset duration; the twentieth preset duration is used by the terminal to determine the success rate of LBT for a frequency domain resource within the twentieth preset duration;

[0793] The fourteenth threshold is used for the terminal to determine whether the number of LBT failures reaches or exceeds the fourteenth threshold to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0794] The twelfth threshold; the twelfth threshold is used by the terminal to determine whether the LBT failure rate reaches or exceeds the twelfth threshold within the sixteenth preset time length, so as to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0795] The thirteenth threshold; the thirteenth threshold is used by the terminal to determine whether the LBT success rate reaches or is lower than the thirteenth threshold within the seventeenth preset time length, so as to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0796] The maximum number of uplink frequency domain resources;

[0797] The number of uplink frequency domain resources;

[0798] The index of the target frequency domain resource for frequency domain resource switching when the uplink frequency domain resource performs BLT.

[0799] In actual application, the terminal can report its own uplink frequency domain resource information for LBT so that the network device can be aware of it and can receive the sent data in time.

[0800] Based on this, in one embodiment, the second transceiver unit 52 is further used for:

[0801] A first signaling reported by a receiving terminal; the first signaling is used to indicate frequency domain resource information for the terminal to perform LBT.

[0802] In actual application, the network device may also send downlink frequency domain resource information to the terminal so that the terminal can obtain the information and then receive the data sent by the network device in a timely manner.

[0803] Based on this, in one embodiment, the second transceiver unit 52 is further used for:

[0804] A second signaling is sent to the terminal; the second signaling is used to instruct the terminal to receive downlink frequency domain resource information of downlink data.

[0805] In actual application, in order to send data in time, when no LBT is successful on the corresponding frequency domain resources within a certain period of time, frequency domain resource conversion is required.

[0806] Based on this, in one embodiment, the second listening unit 51 is further configured to:

[0807] When performing LBT on frequency domain resources, perform one of the following operations:

[0808] If LBT is unsuccessful within the twelfth preset time period, frequency domain resource conversion is performed;

[0809] When the number of LBT failures reaches or exceeds the eighth threshold, frequency domain resource conversion is performed;

[0810] If the LBT failure rate reaches or exceeds the ninth threshold within the thirteenth preset time period, frequency domain resource conversion is performed;

[0811] If the LBT success rate reaches or is lower than the tenth threshold within the fourteenth preset time period, frequency domain resource conversion is performed.

[0812] When performing frequency domain resource conversion, the second listening unit 51 also needs to determine the target frequency domain resource for the frequency domain resource conversion. The target frequency domain resource for the frequency domain resource conversion can be determined according to one of the following methods:

[0813] Autonomously determine target frequency domain resources;

[0814] The frequency domain resources that meet certain threshold requirements are used as target frequency domain resources.

[0815] In actual application, the terminal can also report the frequency domain resource information for data transmission, that is, report the ability of the uplink frequency domain resources supported by itself to send data, so that the network equipment can accurately receive the data, and can also instruct the terminal how to send data on the uplink frequency domain resources based on the capability of the terminal.

[0816] Based on this, in one embodiment, the second transceiver unit 52 is further used for:

[0817] A third signaling reported by a receiving terminal is used to indicate uplink frequency domain resource information for uplink data transmission by the terminal.

[0818] In one embodiment, the second transceiver unit 52 is further configured to:

[0819] A fourth signaling is sent to the terminal; the fourth signaling is used to indicate uplink frequency domain resource information for the terminal to send uplink data.

[0820] It should be noted that: in actual application, the second listening unit 51 can be implemented by a processor in the data transmission device in combination with a communication interface; the second transceiver unit 52 can be implemented by a communication interface in the data transmission device.

[0821] It should be noted that: the data transmission device provided in the above embodiment only uses the division of the above program modules as an example when performing data transmission. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the data transmission device provided in the above embodiment and the data transmission method embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0822] Based on the hardware implementation of the above program modules, and in order to implement the method on the terminal side of the embodiment of the present invention, the embodiment of the present invention further provides a terminal, such as Figure 6 As shown, the terminal 60 includes:

[0823] A first communication interface 61, capable of exchanging information with other devices;

[0824] The first processor 62 is connected to the first communication interface 61 to implement information interaction with the network device and is used to execute the method provided by one or more technical solutions on the terminal side when running the computer program. The computer program is stored in the first memory 63.

[0825] Specifically, the first communication interface 61 is used to perform LBT on multiple uplink frequency domain resources, send data on one uplink frequency domain resource, and receive data on one downlink frequency domain resource under the control of the first processor 62; or

[0826] The first communication interface 61 is used to perform LBT on multiple uplink frequency domain resources, send data on one uplink frequency domain resource, and receive data on multiple downlink frequency domain resources under the control of the first processor 62; or

[0827] The first communication interface 61 is used to perform LBT on multiple uplink frequency domain resources, send data on multiple uplink frequency domain resources, and receive data on multiple downlink frequency domain resources under the control of the first processor 62; or

[0828] The first communication interface 61 is used to perform LBT on multiple uplink frequency domain resources, send data on multiple uplink frequency domain resources, and receive data on one downlink frequency domain resource under the control of the first processor 62; or

[0829] The first communication interface 61 is used to perform LBT on an uplink frequency domain resource, send data on an uplink frequency domain resource, and receive data on a downlink frequency domain resource under the control of the first processor 62; or

[0830] The first communication interface 61 is used to perform LBT on an uplink frequency domain resource, send data on an uplink frequency domain resource, and receive data on multiple downlink frequency domain resources under the control of the first processor 62.

[0831] In one embodiment, LBT is performed on multiple uplink frequency domain resources, and the first communication interface 61 sends data on one uplink frequency domain resource, including one of the following:

[0832] Data is sent on the frequency domain resource where LBT succeeds first;

[0833] Data is sent on a frequency domain resource with the highest LBT success rate;

[0834] Sending data on a frequency domain resource with the highest LBT success rate within a first preset time length;

[0835] Sending data on a frequency domain resource having the highest number of LBT successes within a second preset time duration;

[0836] Data is sent on a frequency domain resource that meets a first threshold requirement.

[0837] In one embodiment, LBT is performed on multiple uplink frequency domain resources, and the first communication interface 61 sends data on multiple uplink frequency domain resources, including one of the following:

[0838] Data is transmitted on multiple frequency domain resources where LBT is successful;

[0839] Data is sent on multiple frequency domain resources with a higher LBT success rate;

[0840] Send data on multiple frequency domain resources with higher LBT success times;

[0841] Sending data on multiple frequency domain resources with a higher LBT success rate within a third preset time length;

[0842] Sending data on multiple frequency domain resources with a higher number of LBT successes within a fourth preset time length;

[0843] Data is sent on frequency domain resources that meet the second threshold requirement.

[0844] In one embodiment, when data is sent on multiple frequency domain resources with a higher LBT success rate within the third preset time period, the first communication interface 61 is further used to:

[0845] Receive at least one of the following information sent by the network:

[0846] LBT success rate threshold;

[0847] The number of first frequency domain resources for data transmission;

[0848] The first maximum value of the number of frequency domain resources for data transmission.

[0849] Here, the first processor 62 can use the above information received from the network side to further determine multiple frequency domain resources with a higher LBT success rate within a third preset time period for data transmission.

[0850] In one embodiment, when data is sent on multiple frequency domain resources with a higher number of LBT successes within the fourth preset time length, the first communication interface 61 is further used to:

[0851] Receive at least one of the following information sent by the network:

[0852] The second LBT success number threshold;

[0853] The number of second frequency domain resources for data transmission;

[0854] The second maximum value of the number of frequency domain resources for data transmission.

[0855] Here, the first processor 62 can use the above information received from the network side to further determine multiple frequency domain resources with a higher number of LBT successes within a third preset time period for data transmission.

[0856] In one embodiment, the first communication interface 61 acquires information of multiple uplink frequency domain resources of LBT including at least one of the following:

[0857] The specified number of uplink frequency domain resources for LBT;

[0858] The maximum number of uplink frequency domain resources specified for LBT;

[0859] The number of uplink frequency domain resources for LBT issued by the network;

[0860] The maximum number of uplink frequency domain resources for LBT sent by the network.

[0861] In one embodiment, the first communication interface 61 is further used to report a first signaling to the network, where the first signaling is used to indicate frequency domain resource information for performing LBT on the terminal.

[0862] In one embodiment, the first communication interface 61 is further used to receive a second signaling sent by the network; the second signaling is used to indicate downlink frequency domain resource information for receiving downlink data.

[0863] In one embodiment, the first communication interface 61 is further configured to perform one of the following operations when performing LBT on frequency domain resources:

[0864] If LBT fails within the fifth preset time period, frequency domain resource conversion is performed;

[0865] When the number of LBT failures reaches or exceeds the third threshold, frequency domain resource conversion is performed;

[0866] If the LBT failure rate reaches or exceeds a fourth threshold within a sixth preset time period, frequency domain resource conversion is performed;

[0867] If the LBT success rate reaches or falls below the fifth threshold within the seventh preset time period, the terminal performs frequency domain resource conversion.

[0868] When performing frequency domain resource conversion, the first communication interface 61 also needs to determine the target frequency domain resource for the frequency domain resource conversion. The target frequency domain resource for the frequency domain resource conversion can be determined in one of the following ways:

[0869] Autonomously determine target frequency domain resources;

[0870] The frequency domain resources that meet certain threshold requirements are used as target frequency domain resources;

[0871] The target frequency domain resource is determined by using the index of the target frequency domain resource sent by the network.

[0872] In one embodiment, the first communication interface 61 is further configured to perform one of the following operations when performing LBT on frequency domain resources:

[0873] If LBT fails within the fifteenth preset time, the wireless link fails.

[0874] When the number of LBT failures reaches or exceeds the eleventh threshold, a wireless link failure is reported;

[0875] If the LBT failure rate reaches or exceeds the twelfth threshold within the sixteenth preset time period, a wireless link failure is reported;

[0876] If the LBT success rate reaches or falls below the thirteenth threshold within the seventeenth preset time period, a wireless link failure is reported.

[0877] In one embodiment, the first communication interface 61 is further configured to perform one of the following operations when performing LBT on frequency domain resources:

[0878] If the LBT fails within the eighteenth preset time period, the physical layer of the terminal reports the LBT failure to the medium access control MAC layer of the terminal;

[0879] When the number of LBT failures reaches or exceeds the fourteenth threshold, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0880] If the LBT failure rate reaches or exceeds the fifteenth threshold within the nineteenth preset time period, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0881] If the LBT success rate reaches or falls below the sixteenth threshold within the twentieth preset time period, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal.

[0882] In one embodiment, the first communication interface 61 is further used to report a third signaling to the network, where the third signaling is used to indicate uplink frequency domain resource information for the terminal to send uplink data.

[0883] In one embodiment, the first communication interface 61 is further used to receive a fourth signaling sent by the network; the fourth signaling is used to instruct the terminal on uplink frequency domain resource information for sending uplink data.

[0884] It should be noted that: the specific processing process of the first processor 62 and the first communication interface 61 is detailed in the method embodiment, which will not be repeated here.

[0885] Of course, in actual application, the various components in the terminal 60 are coupled together through the bus system 64. It is understood that the bus system 64 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 64 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, Figure 6 Various buses are labeled as bus system 64.

[0886] The first memory 63 in the embodiment of the present invention is used to store various types of data to support the operation of the terminal 60. Examples of such data include: any computer program used to operate on the terminal 60.

[0887] The method disclosed in the above embodiment of the present invention can be applied to the first processor 62, or implemented by the first processor 62. The first processor 62 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the first processor 62 or the instruction in the form of software. The above first processor 62 may be a general processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The first processor 62 can implement or execute the methods, steps and logic block diagrams disclosed in the embodiment of the present invention. The general processor may be a microprocessor or any conventional processor, etc. The steps of the method disclosed in the embodiment of the present invention can be directly embodied as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, which is located in the first memory 63. The first processor 62 reads the information in the first memory 63 and completes the steps of the above method in combination with its hardware.

[0888] In an exemplary embodiment, the terminal 60 may be implemented by one or more application specific integrated circuits (ASIC), DSP, programmable logic device (PLD), complex programmable logic device (CPLD), field programmable gate array (FPGA), general processor, controller, microcontroller (MCU), microprocessor, or other electronic components to execute the aforementioned method.

[0889] Based on the hardware implementation of the above program modules, and in order to implement the method on the network device side of the embodiment of the present invention, as Figure 7 As shown, the network device 70 includes:

[0890] The second communication interface 71 is capable of exchanging information with the terminal;

[0891] The second processor 72 is connected to the second communication interface 71 to implement information interaction with the terminal and is used to execute the method provided by one or more technical solutions on the network device side when running a computer program. The computer program is stored in the second memory 73.

[0892] Specifically, the second communication interface 71 is used to perform LBT on multiple downlink frequency domain resources, send data on one downlink frequency domain resource, and receive data on one uplink frequency domain resource under the control of the second processor 72; or

[0893] The second communication interface 71 is used to perform LBT on multiple downlink frequency domain resources under the control of the second processor 72, and is used to send data on multiple downlink frequency domain resources and receive data on one uplink frequency domain resource; or

[0894] The second communication interface 71 is used to perform LBT on multiple downlink frequency domain resources under the control of the second processor 72, and is used to send data on multiple downlink frequency domain resources and receive data on multiple uplink frequency domain resources; or

[0895] The second communication interface 71 is used to perform LBT on multiple downlink frequency domain resources, send data on one downlink frequency domain resource, and receive data on multiple uplink frequency domain resources under the control of the second processor 72; or

[0896] The second communication interface 71 is used to perform LBT on a downlink frequency domain resource under the control of the second processor 72, to send data on a downlink frequency domain resource, and to receive data on an uplink frequency domain resource; or

[0897] The second communication interface 71 is used to perform LBT on a downlink frequency domain resource under the control of the second processor 72, to send data on multiple downlink frequency domain resources, and to receive data on an uplink frequency domain resource.

[0898] In one embodiment, LBT is performed on multiple downlink frequency domain resources, and the second communication interface 71 sends downlink data on one downlink frequency domain resource, including one of the following:

[0899] Data is sent on the frequency domain resource where LBT succeeds first;

[0900] Data is sent on a frequency domain resource with the highest LBT success rate;

[0901] Sending data on a frequency domain resource with the highest LBT success rate within an eighth preset time length;

[0902] Sending data on a frequency domain resource having the highest number of LBT successes within a ninth preset time period;

[0903] Data is sent on a frequency domain resource that meets a sixth threshold requirement.

[0904] In one embodiment, LBT is performed on multiple downlink frequency domain resources, and the second communication interface 71 performs downlink data transmission on multiple downlink frequency domain resources, including one of the following:

[0905] Data is transmitted on multiple frequency domain resources where LBT is successful;

[0906] Data is sent on multiple frequency domain resources with a higher LBT success rate;

[0907] Send data on multiple frequency domain resources with higher LBT success times;

[0908] Sending data on multiple frequency domain resources with a higher LBT success rate within the tenth preset time length;

[0909] Sending data on multiple frequency domain resources with a higher number of LBT successes within the eleventh preset time length;

[0910] Data is sent on frequency domain resources that meet the seventh threshold requirement.

[0911] In one embodiment, the second communication interface 71 is further used to send at least one of the following information to the terminal:

[0912] A first preset duration; the first preset duration is used for the terminal to determine a frequency domain resource with the highest LBT success rate within the first preset duration for data transmission;

[0913] A second preset duration, where the second preset duration is used for the terminal to determine a frequency domain resource with the highest number of LBT successes within the second preset duration for data transmission;

[0914] A third preset duration, where the third preset duration is used for the terminal to determine a plurality of frequency domain resources with a higher LBT success rate within the third preset duration for data transmission;

[0915] LBT success rate threshold; the first LBT success rate threshold is used for the terminal to determine a plurality of frequency domain resources with a higher LBT success rate within a third preset time length for data transmission;

[0916] The number of first frequency domain resources for data transmission; the second frequency domain resource data is used for the terminal to determine multiple frequency domain resources with a higher LBT success rate within a third preset time length for data transmission;

[0917] a first maximum value of the number of frequency domain resources for data transmission; the first maximum value is used by the terminal to determine a plurality of frequency domain resources with a higher LBT success rate within a third preset time length for data transmission;

[0918] LBT success number threshold; the success number threshold is used for the terminal to determine a plurality of frequency domain resources with a higher number of LBT successes within a fourth preset time length for data transmission;

[0919] The number of second frequency domain resources for data transmission; the second frequency domain resource data is used for the terminal to determine multiple frequency domain resources with a higher number of LBT successes within a fourth preset time length for data transmission;

[0920] a second maximum value of the number of frequency domain resources for data transmission; the second maximum value is used for the terminal to determine a plurality of frequency domain resources with a higher number of LBT successes within a fourth preset duration for data transmission;

[0921] a fourth preset duration, where the fourth preset duration is used by the terminal to determine a plurality of frequency domain resources with a higher number of LBT successes within the fourth preset duration for data transmission;

[0922] A first threshold requirement; the first threshold requirement is used for the terminal to determine a frequency domain resource for data transmission;

[0923] A second threshold requirement; the second threshold requirement is used by the terminal to determine a plurality of frequency domain resources for data transmission;

[0924] The fifth preset duration; the fifth preset duration is used for the terminal to determine whether LBT is successful for a frequency domain resource within the fifth preset duration;

[0925] The sixth preset duration; the sixth preset duration is used for the terminal to determine the failure rate of LBT for a frequency domain resource within the sixth preset duration;

[0926] A seventh preset duration; the seventh preset duration is used for the terminal to determine a success rate of LBT for a frequency domain resource within the seventh preset duration;

[0927] The third threshold is used for the terminal to determine whether the number of LBT failures reaches or exceeds the third threshold to determine whether to perform frequency domain resource conversion;

[0928] The fourth threshold is used by the terminal to determine whether the LBT failure rate reaches or exceeds the fourth threshold within the sixth preset time length to determine whether to perform frequency domain resource conversion;

[0929] The fifth threshold is used by the terminal to determine whether the LBT success rate reaches or is lower than the fifth threshold within the seventh preset time length, so as to determine whether to perform frequency domain resource conversion;

[0930] The fifteenth preset time length; the fifteenth preset time length is used for the terminal to determine whether a frequency domain resource is successfully LBT within the fifteenth preset time length;

[0931] A sixteenth preset duration; the sixteenth preset duration is used by the terminal to determine a failure rate of LBT for a frequency domain resource within the sixteenth preset duration;

[0932] The seventeenth preset duration; the seventeenth preset duration is used for the terminal to determine the success rate of LBT for a frequency domain resource within the seventeenth preset duration;

[0933] The eleventh threshold; the eleventh threshold is used for the terminal to determine whether the number of LBT failures reaches or exceeds the eleventh threshold to determine whether to report the radio link failure;

[0934] The twelfth threshold; the twelfth threshold is used by the terminal to determine whether the LBT failure rate reaches or exceeds the twelfth threshold within the sixteenth preset time length, so as to determine whether to report the wireless link failure;

[0935] The thirteenth threshold; the thirteenth threshold is used by the terminal to determine whether the LBT success rate reaches or is lower than the thirteenth threshold within the seventeenth preset time length, so as to determine whether to report the wireless link failure;

[0936] An eighteenth preset duration; the eighteenth preset duration is used for the terminal to determine whether LBT is successful for a frequency domain resource within the eighteenth preset duration;

[0937] A nineteenth preset duration; the nineteenth preset duration is used by the terminal to determine a failure rate of LBT for a frequency domain resource within the nineteenth preset duration;

[0938] The twentieth preset duration; the twentieth preset duration is used by the terminal to determine the success rate of LBT for a frequency domain resource within the twentieth preset duration;

[0939] The fourteenth threshold is used for the terminal to determine whether the number of LBT failures reaches or exceeds the fourteenth threshold to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0940] The twelfth threshold; the twelfth threshold is used by the terminal to determine whether the LBT failure rate reaches or exceeds the twelfth threshold within the sixteenth preset time length, so as to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0941] The thirteenth threshold; the thirteenth threshold is used by the terminal to determine whether the LBT success rate reaches or is lower than the thirteenth threshold within the seventeenth preset time length, so as to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal;

[0942] The maximum number of uplink frequency domain resources;

[0943] The number of uplink frequency domain resources;

[0944] The index of the target frequency domain resource for frequency domain resource switching when the uplink frequency domain resource performs BLT.

[0945] In one embodiment, the second communication interface 71 is further used to: receive a first signaling reported by a terminal; the first signaling is used to indicate frequency domain resource information for the terminal to perform LBT.

[0946] In one embodiment, the second communication interface 71 is further used for:

[0947] A second signaling is sent to the terminal; the second signaling is used to instruct the terminal to receive downlink frequency domain resource information of downlink data.

[0948] In one embodiment, the second communication interface 71 is further used for:

[0949] When performing LBT on the frequency domain resources, one of the following operations is performed under the control of the second processor:

[0950] If LBT is unsuccessful within the twelfth preset time period, frequency domain resource conversion is performed;

[0951] When the number of LBT failures reaches or exceeds the eighth threshold, frequency domain resource conversion is performed;

[0952] If the LBT failure rate reaches or exceeds the ninth threshold within the thirteenth preset time period, frequency domain resource conversion is performed;

[0953] If the LBT success rate reaches or is lower than the tenth threshold within the fourteenth preset time period, the terminal performs frequency domain resource conversion.

[0954] When performing frequency domain resource conversion, the second communication interface 71 also needs to determine the target frequency domain resource for the frequency domain resource conversion. The target frequency domain resource for the frequency domain resource conversion can be determined in one of the following ways:

[0955] Autonomously determine target frequency domain resources;

[0956] The frequency domain resources that meet certain threshold requirements are used as target frequency domain resources.

[0957] In one embodiment, the second communication interface 71 is further used for:

[0958] A third signaling reported by a receiving terminal is used to indicate uplink frequency domain resource information for uplink data transmission by the terminal.

[0959] In one embodiment, the second communication interface 71 is further used for:

[0960] A fourth signaling is sent to the terminal; the fourth signaling is used to indicate uplink frequency domain resource information for the terminal to send uplink data.

[0961] It should be noted that: the specific processing process of the second processor 72 and the second communication interface 71 is detailed in the method embodiment, which will not be repeated here.

[0962] Of course, in actual application, the various components in the network device 70 are coupled together through the bus system 74. It is understandable that the bus system 74 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 74 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 7 Various buses are labeled as bus system 74 .

[0963] The second memory 73 in the embodiment of the present invention is used to store various types of data to support the operation of the network device 70. Examples of such data include: any computer program used to operate on the network device 70.

[0964] The method disclosed in the above embodiment of the present invention can be applied to the second processor 72, or implemented by the second processor 72. The second processor 72 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the second processor 72. The above second processor 72 may be a general processor, DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The second processor 72 can implement or execute the methods, steps and logic block diagrams disclosed in the embodiment of the present invention. The general processor may be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present invention, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in the second memory 73. The second processor 72 reads the information in the second memory 73 and completes the steps of the above method in combination with its hardware.

[0965] In an exemplary embodiment, the network device 70 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general purpose processors, controllers, MCUs, Microprocessors, or other electronic components to perform the aforementioned methods.

[0966] It can be understood that the memory (first memory 63, second memory 73) of the embodiment of the present invention can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM).The memories described in the embodiments of the present invention are intended to include, but are not limited to, these and any other suitable types of memories.

[0967] To implement the method of the embodiment of the present invention, the embodiment of the present invention also provides a data transmission system, such as Figure 8 As shown, the system includes:

[0968] The network device 81 is used to configure multiple working frequency domain resources for the terminal; and perform corresponding LBT for the multiple frequency domain resources, send data after the LBT is successful, and receive data on the uplink frequency domain resources;

[0969] The terminal 82 is used to perform corresponding LBT on multiple frequency domain resources, send data after LBT is successful, and receive data on the downlink frequency domain resources.

[0970] It should be noted that the specific processing procedures of the network device 81 and the terminal 82 have been described in detail above and will not be repeated here.

[0971] In an exemplary embodiment, the embodiment of the present invention further provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium, for example, including a first memory 63 storing a computer program, and the computer program can be executed by the first processor 62 of the terminal 60 to complete the steps of the aforementioned terminal-side method. For another example, a second memory 73 storing a computer program can be executed by the second processor 72 of the network device 70 to complete the steps of the aforementioned network device-side method. The computer-readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM.

[0972] It should be noted that: "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0973] In addition, the technical solutions described in the embodiments of the present invention can be arbitrarily combined without conflict.

[0974] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A data transmission method, characterized in that: Applied to a terminal, the method comprises: Performing listen-before-talk LBT on multiple uplink frequency domain resources, sending data on one uplink frequency domain resource, and receiving data on one downlink frequency domain resource; or, Perform LBT on multiple uplink frequency domain resources, send data on one uplink frequency domain resource, and receive data on multiple downlink frequency domain resources; or, Perform LBT on multiple uplink frequency domain resources, send data on multiple uplink frequency domain resources, and receive data on multiple downlink frequency domain resources; or, Perform LBT on multiple uplink frequency domain resources, send data on multiple uplink frequency domain resources, and receive data on one downlink frequency domain resource; or, Perform LBT on an uplink frequency domain resource, send data on an uplink frequency domain resource, and receive data on a downlink frequency domain resource; or, Perform LBT on an uplink frequency domain resource, send data on an uplink frequency domain resource, and receive data on multiple downlink frequency domain resources; wherein the terminal is configured with multiple frequency domain resources, and the uplink frequency domain resources and the downlink frequency domain resources belong to the multiple frequency domain resources; When performing LBT on frequency domain resources, the method further includes one of the following: If LBT fails within the fifth preset time period, frequency domain resource conversion is performed; When the number of LBT failures reaches or exceeds the third threshold, frequency domain resource conversion is performed; If the LBT failure rate reaches or exceeds a fourth threshold within a sixth preset time period, frequency domain resource conversion is performed; If the LBT success rate reaches or falls below the fifth threshold within the seventh preset time period, frequency domain resource conversion is performed; The terminal performs LBT on a target frequency domain resource of frequency domain resource conversion, and the target frequency domain resource belongs to the multiple frequency domain resources.

2. The method according to claim 1, characterized in that The uplink frequency domain resources are part of the uplink bandwidth; the downlink frequency domain resources are part of the downlink bandwidth.

3. The method according to claim 2, characterized in that The partial bandwidth includes: a bandwidth part BWP and / or a partial bandwidth within a BWP.

4. The method according to claim 1, characterized in that: The LBT is performed on multiple uplink frequency domain resources, wherein the data is sent on one uplink frequency domain resource, including one of the following: Data is sent on the frequency domain resource where LBT succeeds first; Data is sent on a frequency domain resource with the highest LBT success rate; Sending data on a frequency domain resource with the highest LBT success rate within a first preset time length; Sending data on a frequency domain resource having the highest number of LBT successes within a second preset time duration; Data is sent on a frequency domain resource that meets a first threshold requirement.

5. The method according to claim 1, characterized in that Performing LBT on multiple uplink frequency domain resources, wherein the performing data transmission on multiple uplink frequency domain resources includes one of the following: Data is transmitted on multiple frequency domain resources where LBT is successful; Data is sent on multiple frequency domain resources with a higher LBT success rate; Send data on multiple frequency domain resources with higher LBT success times; Sending data on multiple frequency domain resources with a higher LBT success rate within a third preset time length; Sending data on multiple frequency domain resources with a higher number of LBT successes within a fourth preset time length; Data is sent on frequency domain resources that meet the second threshold requirement.

6. The method according to claim 4 or 5, characterized in that: The corresponding threshold requirements include at least one of the following: LBT success rate; LBT success rate within the preset time; Number of LBT successes; The number of LBT successes within the preset time period; Number of LBT failures; The number of LBT failures within the preset time period; LBT failure rate; LBT failure rate within a preset time period; Reference signal received quality RSRQ; Signal to Interference plus Noise Ratio SINR; Reference signal received power RSRP.

7. The method according to claim 5, characterized in that When data is sent on multiple frequency domain resources with a higher LBT success rate within the third preset time length, the method further includes: Receive at least one of the following information sent by the network: LBT success rate threshold; The number of first frequency domain resources for data transmission; A first maximum value of the number of frequency domain resources for data transmission.

8. The method according to claim 5, characterized in that When data is sent on multiple frequency domain resources with a higher number of LBT successes within the fourth preset time length, the method further includes: Receive at least one of the following information sent by the network: The second LBT success number threshold; The number of second frequency domain resources for data transmission; The second maximum value of the number of frequency domain resources for data transmission.

9. The method according to claim 1, characterized in that: The method further comprises: Report a first signaling to the network, where the first signaling is used to indicate frequency domain resource information for the terminal to perform LBT.

10. The method according to claim 9, characterized in that The content of the first signaling includes at least one of the following: Perform LBT on a frequency domain resource; Perform LBT on multiple frequency domain resources; The number of frequency domain resources for LBT; The maximum number of frequency domain resources for LBT; The index of the frequency domain resources for LBT or the frequency domain resource location information.

11. The method according to any one of claims 1 to 5, characterized in that: The acquisition of information of multiple uplink frequency domain resources for LBT includes at least one of the following: The specified number of uplink frequency domain resources for LBT; The maximum number of uplink frequency domain resources specified for LBT; The number of uplink frequency domain resources for LBT issued by the network; The maximum number of uplink frequency domain resources for LBT sent by the network.

12. The method according to claim 1, characterized in that The method further comprises: Receive second signaling sent by the network; the second signaling is used to indicate downlink frequency domain resource information for receiving downlink data.

13. The method according to claim 12, characterized in that The content of the second signaling includes at least one of the following: Receiving data on a downlink frequency domain resource; Not receiving data on a downlink frequency domain resource; Receiving data on multiple downlink frequency domain resources; Not receiving data on multiple downlink frequency domain resources; The number of frequency domain resources for receiving downlink data; Receive frequency domain resource index or frequency domain resource location information of downlink data.

14. The method according to claim 1, characterized in that When performing LBT on frequency domain resources, the method further includes one of the following: If LBT fails within the fifteenth preset time, the wireless link fails. When the number of LBT failures reaches or exceeds the eleventh threshold, a wireless link failure is reported; If the LBT failure rate reaches or exceeds the twelfth threshold within the sixteenth preset time period, a wireless link failure is reported; If the LBT success rate reaches or falls below the thirteenth threshold within the seventeenth preset time period, a wireless link failure is reported.

15. The method according to claim 1, characterized in that When performing LBT on frequency domain resources, the method further includes one of the following: If the LBT fails within the eighteenth preset time period, the physical layer of the terminal reports the LBT failure to the medium access control MAC layer of the terminal; When the number of LBT failures reaches or exceeds the fourteenth threshold, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal; If the LBT failure rate reaches or exceeds the fifteenth threshold within the nineteenth preset time period, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal; If the LBT success rate reaches or falls below the sixteenth threshold within the twentieth preset time period, the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal.

16. The method according to claim 1, characterized in that When performing frequency domain resource conversion, the method further includes: Determine the target frequency domain resource for frequency domain resource conversion by one of the following methods: Autonomously determine target frequency domain resources; The frequency domain resources that meet certain threshold requirements are used as target frequency domain resources; The target frequency domain resource is determined by using the index of the target frequency domain resource sent by the network.

17. The method according to claim 16, characterized in that The threshold requirement includes at least one of the following: LBT success rate; The success rate of LBT within a specific duration; Number of LBT successes; The number of LBT successes within a specific time period; Number of LBT failures; The number of LBT failures within a specific time period; LBT failure rate; LBT failure rate within a specific duration; RSRQ; SINR; RSRP.

18. The method according to claim 1, characterized in that The method further comprises: Report a third signaling to the network, where the third signaling is used to indicate uplink frequency domain resource information for the terminal to send uplink data.

19. The method according to claim 18, characterized in that The content of the third signaling includes at least one of the following: Sending data on an uplink frequency domain resource; Sending data on multiple uplink frequency domain resources; Not sending data on multiple uplink frequency domain resources; the number of multiple uplink frequency domain resources for data transmission; a maximum number of multiple uplink frequency domain resources for data transmission; The uplink frequency domain resource index or frequency domain resource location information for data transmission.

20. The method of claim 1, 2, 3, 4, 5 or 18, wherein: The method further comprises: Receive a fourth signaling sent by the network; the fourth signaling is used to indicate uplink frequency domain resource information for the terminal to send uplink data.

21. The method according to claim 20, characterized in that The content of the fourth signaling includes at least one of the following: The number of uplink frequency domain resources for data transmission; The maximum number of uplink frequency domain resources for data transmission; The uplink frequency domain resource index or frequency domain resource location information for data transmission.

22. A data transmission method, characterized in that: Applied to a network device, the method comprises: Perform LBT on multiple downlink frequency domain resources, send data on one downlink frequency domain resource, and receive data on one uplink frequency domain resource; or, Perform LBT on multiple downlink frequency domain resources, send data on multiple downlink frequency domain resources, and receive data on one uplink frequency domain resource; or, Perform LBT on multiple downlink frequency domain resources, send data on multiple downlink frequency domain resources, and receive data on multiple uplink frequency domain resources; or, Perform LBT on multiple downlink frequency domain resources, send data on one downlink frequency domain resource, and receive data on multiple uplink frequency domain resources; or, Perform LBT on a downlink frequency domain resource, send data on a downlink frequency domain resource, and receive data on an uplink frequency domain resource; or, Perform LBT on a downlink frequency domain resource, send data on multiple downlink frequency domain resources, and receive data on an uplink frequency domain resource; wherein the network device configures multiple frequency domain resources for the terminal, and the uplink frequency domain resources and the downlink frequency domain resources belong to the multiple frequency domain resources; When performing LBT on frequency domain resources, the method further includes one of the following: If LBT is unsuccessful within the twelfth preset time period, frequency domain resource conversion is performed; When the number of LBT failures reaches or exceeds the eighth threshold, frequency domain resource conversion is performed; If the LBT failure rate reaches or exceeds the ninth threshold within the thirteenth preset time period, frequency domain resource conversion is performed; If the LBT success rate reaches or is lower than the tenth threshold within the fourteenth preset time period, frequency domain resource conversion is performed; The network device performs LBT on a target frequency domain resource of frequency domain resource conversion, and the target frequency domain resource belongs to the multiple frequency domain resources.

23. The method according to claim 22, characterized in that The uplink frequency domain resources are part of the uplink bandwidth; the downlink frequency domain resources are part of the downlink bandwidth.

24. The method according to claim 23, characterized in that The partial bandwidth includes: BWP and / or partial bandwidth within BWP.

25. The method according to claim 22, characterized in that Performing LBT on multiple downlink frequency domain resources, wherein performing downlink data transmission on one downlink frequency domain resource includes one of the following: Data is sent on the frequency domain resource where LBT succeeds first; Data is sent on a frequency domain resource with the highest LBT success rate; Sending data on a frequency domain resource with the highest LBT success rate within an eighth preset time length; Sending data on a frequency domain resource having the highest number of LBT successes within a ninth preset time period; Data is sent on a frequency domain resource that meets a sixth threshold requirement.

26. The method according to claim 22, characterized in that Performing LBT on multiple downlink frequency domain resources, wherein the performing downlink data transmission on multiple downlink frequency domain resources includes one of the following: Data is transmitted on multiple frequency domain resources where LBT is successful; Data is sent on multiple frequency domain resources with a higher LBT success rate; Send data on multiple frequency domain resources with higher LBT success times; Sending data on multiple frequency domain resources with a higher LBT success rate within the tenth preset time length; Sending data on multiple frequency domain resources with a higher number of LBT successes within the eleventh preset time length; Data is sent on frequency domain resources that meet the seventh threshold requirement.

27. The method according to claim 25 or 26, characterized in that The threshold requirement includes at least one of the following: LBT success rate; LBT success rate within the preset time; Number of LBT successes; The number of LBT successes within the preset time period; Number of LBT failures; The number of LBT failures within the preset time period; LBT failure rate; LBT failure rate within a preset time period; RSRQ; SINR; RSRP.

28. The method according to claim 22, characterized in that The method further comprises: Send at least one of the following information to the terminal: A first preset duration; the first preset duration is used for the terminal to determine a frequency domain resource with the highest LBT success rate within the first preset duration for data transmission; A second preset duration, where the second preset duration is used for the terminal to determine a frequency domain resource with the highest number of LBT successes within the second preset duration for data transmission; A third preset duration, where the third preset duration is used for the terminal to determine a plurality of frequency domain resources with a higher LBT success rate within the third preset duration for data transmission; LBT success rate threshold; the LBT success rate threshold is used for the terminal to determine a plurality of frequency domain resources with a higher LBT success rate within a third preset time length for data transmission; The first number of frequency domain resources for data transmission; the first number of frequency domain resources is used for the terminal to determine a plurality of frequency domain resources with a higher LBT success rate within a third preset time length for data transmission; a first maximum value of the number of frequency domain resources for data transmission; the first maximum value is used by the terminal to determine a plurality of frequency domain resources with a higher LBT success rate within a third preset time length for data transmission; a fourth preset duration, where the fourth preset duration is used by the terminal to determine a plurality of frequency domain resources with a higher number of LBT successes within the fourth preset duration for data transmission; LBT success number threshold; the success number threshold is used for the terminal to determine a plurality of frequency domain resources with a higher number of LBT successes within a fourth preset time length for data transmission; The number of second frequency domain resources for data transmission; the second number of frequency domain resources is used for the terminal to determine multiple frequency domain resources with a higher number of LBT successes within a fourth preset time length for data transmission; a second maximum value of the number of frequency domain resources for data transmission; the second maximum value is used by the terminal to determine a plurality of frequency domain resources with a higher number of LBT successes within a fourth preset duration for data transmission; A first threshold requirement; the first threshold requirement is used for the terminal to determine a frequency domain resource for data transmission; A second threshold requirement; the second threshold requirement is used by the terminal to determine a plurality of frequency domain resources for data transmission; The fifth preset duration; the fifth preset duration is used for the terminal to determine whether LBT is successful for a frequency domain resource within the fifth preset duration; The sixth preset duration; the sixth preset duration is used for the terminal to determine the failure rate of LBT for a frequency domain resource within the sixth preset duration; A seventh preset duration; the seventh preset duration is used for the terminal to determine a success rate of LBT for a frequency domain resource within the seventh preset duration; The third threshold is used for the terminal to determine whether the number of LBT failures reaches or exceeds the third threshold to determine whether to perform frequency domain resource conversion; The fourth threshold is used by the terminal to determine whether the LBT failure rate reaches or exceeds the fourth threshold within the sixth preset time length to determine whether to perform frequency domain resource conversion; The fifth threshold is used by the terminal to determine whether the LBT success rate reaches or is lower than the fifth threshold within the seventh preset time length, so as to determine whether to perform frequency domain resource conversion; The fifteenth preset time length; the fifteenth preset time length is used for the terminal to determine whether a frequency domain resource is successfully LBT within the fifteenth preset time length; A sixteenth preset duration; the sixteenth preset duration is used by the terminal to determine a failure rate of LBT for a frequency domain resource within the sixteenth preset duration; The seventeenth preset time length; the seventeenth preset time length is used for the terminal to determine the success rate of LBT for a frequency domain resource within the seventeenth preset time length; The eleventh threshold; the eleventh threshold is used for the terminal to determine whether the number of LBT failures reaches or exceeds the eleventh threshold to determine whether to report the radio link failure; The twelfth threshold; the twelfth threshold is used by the terminal to determine whether the LBT failure rate reaches or exceeds the twelfth threshold within the sixteenth preset time length, so as to determine whether to report the wireless link failure; The thirteenth threshold; the thirteenth threshold is used by the terminal to determine whether the LBT success rate reaches or is lower than the thirteenth threshold within the seventeenth preset time length, so as to determine whether to report the wireless link failure; An eighteenth preset duration; the eighteenth preset duration is used for the terminal to determine whether LBT is successful for a frequency domain resource within the eighteenth preset duration; A nineteenth preset duration; the nineteenth preset duration is used by the terminal to determine a failure rate of LBT for a frequency domain resource within the nineteenth preset duration; The twentieth preset duration; the twentieth preset duration is used by the terminal to determine the success rate of LBT for a frequency domain resource within the twentieth preset duration; The fourteenth threshold is used for the terminal to determine whether the number of LBT failures reaches or exceeds the fourteenth threshold to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal; The fifteenth threshold; the fifteenth threshold is used by the terminal to determine whether the LBT failure rate reaches or exceeds the fifteenth threshold within the nineteenth preset time length, so as to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal; The sixteenth threshold; the sixteenth threshold is used by the terminal to determine whether the LBT success rate reaches or is lower than the sixteenth threshold within the twentieth preset time length, so as to determine whether the physical layer of the terminal reports the LBT failure to the MAC layer of the terminal; The maximum number of uplink frequency domain resources; The number of uplink frequency domain resources; The index of the target frequency domain resource for frequency domain resource switching when the uplink frequency domain resource performs BLT.

29. The method according to claim 22, characterized in that The method further comprises: A first signaling reported by a receiving terminal; the first signaling is used to indicate frequency domain resource information for the terminal to perform LBT.

30. The method according to claim 29, characterized in that The content of the first signaling includes at least one of the following: Perform LBT on a frequency domain resource; Perform LBT on multiple frequency domain resources; The number of frequency domain resources for LBT; The maximum number of frequency domain resources for LBT; The index of the frequency domain resources for LBT or the frequency domain resource location information.

31. The method according to claim 22, characterized in that The method further comprises: A second signaling is sent to the terminal; the second signaling is used to instruct the terminal to receive downlink frequency domain resource information of downlink data.

32. The method according to claim 31, characterized in that The content of the second signaling includes at least one of the following: Receiving data on a downlink frequency domain resource; Not receiving data on a downlink frequency domain resource; Receiving data on multiple downlink frequency domain resources; Not receiving data on multiple downlink frequency domain resources; The number of frequency domain resources for receiving downlink data; Receive frequency domain resource index or frequency domain resource location information of downlink data.

33. The method according to claim 22, characterized in that When performing frequency domain resource conversion, the method further includes: Determine the target frequency domain resource for frequency domain resource conversion by one of the following methods: Autonomously determine target frequency domain resources; The frequency domain resources that meet certain threshold requirements are used as target frequency domain resources.

34. The method according to claim 33, characterized in that The threshold requirement includes at least one of the following: LBT success rate; The success rate of LBT within a specific duration; Number of LBT successes; The number of LBT successes within a specific time period; Number of LBT failures; The number of LBT failures within a specific time period; LBT failure rate; LBT failure rate within a specific duration; RSRQ; SINR; RSRP.

35. The method according to claim 22, characterized in that The method further comprises: A third signaling reported by a receiving terminal is used to indicate uplink frequency domain resource information for uplink data transmission by the terminal.

36. The method according to claim 35, characterized in that The content of the third signaling includes at least one of the following: Support data transmission on one uplink frequency domain resource; Support data transmission on multiple uplink frequency domain resources; Data transmission on multiple uplink frequency domain resources is not supported; the number of multiple uplink frequency domain resources for data transmission; a maximum number of multiple uplink frequency domain resources for data transmission; The uplink frequency domain resource index or frequency domain resource location information for data transmission.

37. The method of claim 22, 23, 24, 25, 26 or 36, wherein: The method further comprises: A fourth signaling is sent to the terminal; the fourth signaling is used to indicate uplink frequency domain resource information for the terminal to send uplink data.

38. The method according to claim 37, characterized in that The content of the fourth signaling includes at least one of the following: The number of uplink frequency domain resources for data transmission; The maximum number of uplink frequency domain resources for data transmission; The uplink frequency domain resource index or frequency domain resource location information for data transmission.

39. A data transmission device, characterized in that: Set in a terminal, including: a first listening unit and a first transceiver unit; wherein, The first listening unit is used to perform LBT on multiple uplink frequency domain resources; the first transceiver unit is used to send data on an uplink frequency domain resource and receive data on a downlink frequency domain resource; or, The first listening unit is used to perform LBT on multiple uplink frequency domain resources; the first transceiver unit is used to send data on one uplink frequency domain resource and receive data on multiple downlink frequency domain resources; or, The first listening unit is used to perform LBT on multiple uplink frequency domain resources; the first transceiver unit is used to send data on multiple uplink frequency domain resources and receive data on multiple downlink frequency domain resources; or, The first listening unit is used to perform LBT on multiple uplink frequency domain resources; the first transceiver unit is used to send data on multiple uplink frequency domain resources and receive data on one downlink frequency domain resource; or, The first listening unit is used to perform LBT on an uplink frequency domain resource; the first transceiver unit is used to send data on an uplink frequency domain resource and receive data on a downlink frequency domain resource; or, The first listening unit is used to perform LBT on an uplink frequency domain resource; the first transceiver unit is used to send data on an uplink frequency domain resource and receive data on multiple downlink frequency domain resources; wherein the terminal is configured with multiple frequency domain resources, and the uplink frequency domain resources and the downlink frequency domain resources belong to the multiple frequency domain resources; The first listening unit is further configured to, when performing LBT on frequency domain resources, perform one of the following operations: If LBT fails within the fifth preset time period, frequency domain resource conversion is performed; When the number of LBT failures reaches or exceeds the third threshold, frequency domain resource conversion is performed; If the LBT failure rate reaches or exceeds a fourth threshold within a sixth preset time period, frequency domain resource conversion is performed; If the LBT success rate reaches or falls below the fifth threshold within the seventh preset time period, frequency domain resource conversion is performed; The first listening unit is further configured to perform LBT on a target frequency domain resource of the frequency domain resource conversion, where the target frequency domain resource belongs to the multiple frequency domain resources.

40. A data transmission device, characterized in that: The network device includes: a second listening unit and a second transceiver unit; wherein, The second listening unit is used to perform LBT on multiple downlink frequency domain resources; the second transceiver unit is used to send data on a downlink frequency domain resource and receive data on an uplink frequency domain resource; or, The second listening unit is used to perform LBT on multiple downlink frequency domain resources; the second transceiver unit is used to send data on multiple downlink frequency domain resources and receive data on one uplink frequency domain resource; or, The second listening unit is used to perform LBT on multiple downlink frequency domain resources; the second transceiver unit is used to send data on multiple downlink frequency domain resources and receive data on multiple uplink frequency domain resources; or, The second listening unit is used to perform LBT on multiple downlink frequency domain resources; the second transceiver unit is used to send data on one downlink frequency domain resource and receive data on multiple uplink frequency domain resources; or, The second listening unit is used to perform LBT on a downlink frequency domain resource; the second transceiver unit is used to send data on a downlink frequency domain resource and receive data on an uplink frequency domain resource; or, The second listening unit is used to perform LBT on a downlink frequency domain resource; the second transceiver unit is used to send data on multiple downlink frequency domain resources and receive data on an uplink frequency domain resource; wherein the network device configures multiple frequency domain resources for the terminal, and the uplink frequency domain resources and the downlink frequency domain resources belong to the multiple frequency domain resources; The second listening unit is further configured to, when performing LBT on the frequency domain resources, perform one of the following operations: If LBT is unsuccessful within the twelfth preset time period, frequency domain resource conversion is performed; When the number of LBT failures reaches or exceeds the eighth threshold, frequency domain resource conversion is performed; If the LBT failure rate reaches or exceeds the ninth threshold within the thirteenth preset time period, frequency domain resource conversion is performed; If the LBT success rate reaches or is lower than the tenth threshold within the fourteenth preset time period, frequency domain resource conversion is performed; The second listening unit is further configured to perform LBT on a target frequency domain resource of the frequency domain resource conversion, where the target frequency domain resource belongs to the multiple frequency domain resources.

41. A terminal, characterized in that: include: A first processor and a first communication interface; wherein, The first communication interface is used to perform LBT on multiple uplink frequency domain resources, send data on one uplink frequency domain resource, and receive data on one downlink frequency domain resource under the control of the first processor; or The first communication interface is used to perform LBT on multiple uplink frequency domain resources, send data on one uplink frequency domain resource, and receive data on multiple downlink frequency domain resources under the control of the first processor; or The first communication interface is used to perform LBT on multiple uplink frequency domain resources, send data on multiple uplink frequency domain resources, and receive data on multiple downlink frequency domain resources under the control of the first processor; or The first communication interface is used to perform LBT on multiple uplink frequency domain resources, send data on multiple uplink frequency domain resources, and receive data on one downlink frequency domain resource under the control of the first processor; or The first communication interface is used to perform LBT on an uplink frequency domain resource, send data on an uplink frequency domain resource, and receive data on a downlink frequency domain resource under the control of the first processor; or The first communication interface is used to perform LBT on an uplink frequency domain resource, send data on an uplink BWP, and receive data on multiple downlink frequency domain resources under the control of the first processor; wherein the terminal is configured with multiple frequency domain resources, and the uplink frequency domain resources and the downlink frequency domain resources belong to the multiple frequency domain resources; The first communication interface is further configured to, when performing LBT on frequency domain resources, perform one of the following operations: If LBT fails within the fifth preset time period, frequency domain resource conversion is performed; When the number of LBT failures reaches or exceeds the third threshold, frequency domain resource conversion is performed; If the LBT failure rate reaches or exceeds a fourth threshold within a sixth preset time period, frequency domain resource conversion is performed; If the LBT success rate reaches or falls below the fifth threshold within the seventh preset time period, the terminal performs frequency domain resource conversion; The first communication interface is further used to perform LBT on a target frequency domain resource of the frequency domain resource conversion, and the target frequency domain resource belongs to the multiple frequency domain resources.

42. A network device, characterized in that: include: A second processor and a second communication interface; wherein, The second communication interface is used to perform LBT on multiple downlink frequency domain resources, send data on one downlink frequency domain resource, and receive data on one uplink frequency domain resource under the control of the second processor; or The second communication interface is used to perform LBT on multiple downlink frequency domain resources under the control of the second processor, to send data on multiple downlink frequency domain resources, and to receive data on one uplink frequency domain resource; or The second communication interface is used to perform LBT on multiple downlink frequency domain resources under the control of the second processor, and is used to send data on multiple downlink frequency domain resources and receive data on multiple uplink frequency domain resources; or, The second communication interface is used to perform LBT on multiple downlink frequency domain resources, send data on one downlink frequency domain resource, and receive data on multiple uplink frequency domain resources under the control of the second processor; or The second communication interface is used to perform LBT on a downlink frequency domain resource under the control of the second processor, to send data on a downlink frequency domain resource, and to receive data on an uplink frequency domain resource; or The second communication interface is used to perform LBT on a downlink frequency domain resource under the control of the second processor, and is used to send data on multiple downlink frequency domain resources and receive data on an uplink frequency domain resource; wherein the network device configures multiple frequency domain resources for the terminal, and the uplink frequency domain resources and the downlink frequency domain resources belong to the multiple frequency domain resources; The second communication interface is further configured to, when performing LBT on frequency domain resources, perform one of the following operations: If LBT is unsuccessful within the twelfth preset time period, frequency domain resource conversion is performed; When the number of LBT failures reaches or exceeds the eighth threshold, frequency domain resource conversion is performed; If the LBT failure rate reaches or exceeds the ninth threshold within the thirteenth preset time period, frequency domain resource conversion is performed; If the LBT success rate reaches or is lower than the tenth threshold within the fourteenth preset time period, frequency domain resource conversion is performed; The second communication interface is further used to perform LBT on a target frequency domain resource of the frequency domain resource conversion, and the target frequency domain resource belongs to the multiple frequency domain resources.

43. A terminal, characterized in that: include: a first processor and a first memory for storing a computer program executable on the processor, Wherein, when the first processor is used to run the computer program, the steps of the method described in any one of claims 1 to 21 are executed.

44. A network device, characterized in that: include: a second processor and a second memory for storing a computer program executable on the processor, Wherein, when the second processor is used to run the computer program, it executes the steps of the method described in any one of claims 22 to 38.

45. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 21, or implements the steps of the method according to any one of claims 22 to 38.

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