CN106788936A - Information feedback method, device, user equipment and base station - Google Patents

Abstract

The disclosure provides an information feedback method, device, user equipment and base station, and belongs to the technical field of communications. The method includes: receiving listen-before-talk LBT indication information from the base station, where the LBT indication information is used to indicate the base station's competition result for multiple carriers in carrier aggregation; according to the LBT indication information, determining a designated carrier from the multiple carriers, and the designated carrier is The carrier that successfully competes among the multiple carriers; sends the feedback information of the designated carrier to the base station according to the receiving result of the data transmitted on the designated carrier. Determine the successful carrier among the aggregated carriers through the LBT indication information of the base station, and only provide feedback for the successful carrier, so that the base station and the UE can understand the same codebook size of the feedback information, and reduce the UE feedback information. The amount of data, thereby improving the codebook coding efficiency of the feedback information, while saving the energy of the UE and the carrier resources used for uplink feedback.

Description

Information feedback method, device, user equipment and base station

technical field

The present disclosure relates to the field of communication technologies, and in particular to an information feedback method, device, user equipment and base station.

Background technique

In order to meet the requirements of LTE-A (Long Term Evolution Advanced, Advanced Long Term Evolution) with a downlink peak rate of 1Gbps and an uplink peak rate of 500Mbps, LTE-A proposes a solution for carrier aggregation, which allows the base station to transmit information to the UE ( User Equipment, user equipment) to send data to meet the large-capacity transmission bandwidth. In an LAA (Licensed-Assisted Access, licensed spectrum assisted access) scenario, the base station can perform carrier aggregation on licensed carriers and unlicensed carriers. Among them, the base station needs to compete for the resources of the unlicensed carrier through the LBT (Listen Before Talk, Listen Before Talk) mechanism. Send data on the unlicensed carrier, otherwise, do not send data on the unlicensed carrier.

In order to ensure the reliability of data transmission, the UE needs to perform HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat request) feedback for the data transmitted on each carrier. Among them, when the UE successfully decodes the data transmitted on a certain carrier, it sends 1-bit ACK (Acknowledge) feedback information to the base station; when the UE fails to decode the data transmitted on a certain carrier, it sends 1-bit NACK (Acknowledge) to the base station Not Acknowledge) feedback information. When the number of aggregated carriers is 10, the UE needs to send 10-bit feedback information to the base station. The number of bits of the feedback information is called the codebook size of the feedback information. Feedback information with different codebook sizes corresponds to different modulation methods, and the base station can correctly demodulate the feedback information sent by the UE only on the basis of understanding the codebook size of the feedback information with the UE. However, the carrier information for transmitting data is usually carried in the control information sent by the base station, and the UE acquires the time-frequency resource location and modulation method of the carrier through the control information, so that the time-frequency resource location uses the corresponding modulation method to receive data. If the control information corresponding to a certain carrier is lost during the transmission process, the UE cannot receive the control information, so as to determine that no data transmission is performed on the carrier, and there is no need to perform HARQ feedback on the carrier, while the base station determines that the carrier has been blocked. Calling, the UE needs to give feedback to the carrier, which leads to inconsistent understanding of the codebook size of the feedback information between the UE and the base station, and thus makes the base station unable to correctly demodulate the feedback information. In order to avoid this problem, a DAI (Downlink AssignmentIndex, downlink assignment identifier) mechanism may be used to number the carriers invoked by the base station in the control information. The DAI mechanism indicates the number of carriers for UE downlink transmission through cyclic coding of the 2-bit DAI field. For example, the base station decides to use 6 carriers to transmit data. The DAI numbers carried in the control information corresponding to each carrier are "00, 01, 10, 11, 00, 01" in sequence, and the corresponding carrier numbers are 1 to 6 in sequence. If the base station fails to compete for the carriers numbered 2 to 4, the UE can only receive the control information carrying the DAI numbers "00, 00, 01". According to the discontinuous DAI numbers, the UE can determine that the base station calls 2 to 4 No. carrier, and feed back 3 NACKs corresponding to No. 2 to No. 4 carriers. In this way, both the UE and the base station understand that the codebook size of the feedback information is the number of carriers aggregated by the carrier, so that the base station can correctly demodulate the received feedback information.

Contents of the invention

In order to overcome the related technology, when the base station does not expect to receive the feedback information of the carrier that failed the competition, the UE still feeds back NACK to the carrier that failed the competition, so that the data volume of the feedback information is large, resulting in low codebook coding efficiency, high energy consumption of the UE and For the problem of large amount of uplink feedback carrier resource occupation, the present disclosure provides an information feedback method, device, user equipment and base station, and the technical solution is as follows:

According to a first aspect of an embodiment of the present disclosure, an information feedback method is provided, the method comprising:

receiving listen-before-talk LBT indication information from the base station, where the LBT indication information is used to indicate the base station's competition results for multiple carriers in carrier aggregation;

Determine a designated carrier from the plurality of carriers according to the LBT indication information, where the designated carrier is a carrier that successfully competes among the plurality of carriers;

Sending the feedback information of the designated carrier to the base station according to the receiving result of the data transmitted on the designated carrier.

In a possible implementation manner, the sending the feedback information of the designated carrier to the base station according to the receiving result of the data transmitted on the designated carrier includes:

If data is received on the designated carrier and the received data is decoded successfully, then first feedback information is sent to the base station, where the first feedback information is used to indicate reception of the data transmitted on the designated carrier success;

If data is received on the designated carrier, and the decoding of the received data fails, sending second feedback information to the base station, where the second feedback information is used to indicate reception of the data transmitted on the designated carrier fail;

If no data is received on the designated carrier, sending third feedback information to the base station.

In a possible implementation, the method further includes:

receiving configuration information of the multiple carriers, where the configuration information is used to indicate time-frequency resource locations of the multiple carriers;

Data reception is performed on the plurality of carriers based on the configuration information.

In a possible implementation manner, the configuration information is used to indicate an arrangement order of the multiple carriers, and the determining a designated carrier from the multiple carriers according to the LBT indication information includes:

In the LBT indication information, determine the arrangement position of the information indicating the success of the competition;

According to the arrangement order, determine the carrier at the arrangement position among the plurality of carriers as the designated carrier.

According to a second aspect of an embodiment of the present disclosure, an information feedback method is provided, the method comprising:

After determining multiple carriers for carrier aggregation, generate LBT indication information for the multiple carriers according to the listen-before-talk LBT monitoring results for the multiple carriers, and the LBT indication information is used to indicate the Competition results for multiple carriers;

sending data to the user equipment UE on the specified carrier that successfully competes among the plurality of carriers;

sending the LBT indication information to the UE, and the UE is configured to return the feedback information of the designated carrier according to the LBT indication information.

In a possible implementation, the method further includes:

receiving the feedback information returned by the UE;

The feedback information is demodulated based on a specified codebook size, which is the number of specified carriers.

In a possible implementation manner, the generating the LBT indication information according to the listen-before-talk LBT monitoring results of the multiple carriers includes:

determining an arrangement sequence of the multiple carriers according to the frequency domain resource positions of the multiple carriers;

According to the arrangement sequence, the LBT monitoring results of the multiple carriers are generated as the LBT indication information.

In a possible implementation, the method further includes:

After determining the plurality of carriers used for carrier aggregation, determine the arrangement order of the plurality of carriers according to the frequency domain resource positions of the plurality of carriers;

generating configuration information of the multiple carriers according to the arrangement order and the time-frequency resource positions of the multiple carriers;

sending the configuration information to the UE, where the UE is configured to receive data on the multiple carriers according to the configuration information.

In a possible implementation manner, the generating the configuration information of the multiple carriers according to the time-frequency resource positions of the multiple carriers includes:

According to the arrangement order of the multiple carriers, generate the time-frequency resource positions of the multiple carriers as the configuration information.

According to a third aspect of an embodiment of the present disclosure, there is provided an information feedback device, the device comprising:

The receiving module is used to receive LBT indication information of the base station, and the LBT indication information is used to indicate the competition result of the base station for multiple carriers in carrier aggregation;

A determining module, configured to determine a designated carrier from the plurality of carriers according to the LBT indication information, where the designated carrier is a carrier that successfully competes among the plurality of carriers;

A sending module, configured to send the feedback information of the designated carrier to the base station according to the receiving result of the data transmitted on the designated carrier.

In a possible implementation manner, the sending module is used for:

If data is received on the designated carrier and the received data is decoded successfully, then first feedback information is sent to the base station, where the first feedback information is used to indicate reception of the data transmitted on the designated carrier success;

If data is received on the designated carrier, and the decoding of the received data fails, sending second feedback information to the base station, where the second feedback information is used to indicate reception of the data transmitted on the designated carrier fail;

If no data is received on the designated carrier, sending third feedback information to the base station.

In a possible implementation manner, the receiving module is further configured to receive configuration information of the multiple carriers, where the configuration information is used to indicate time-frequency resource locations of the multiple carriers; based on the configuration information, Data reception is performed on the plurality of carriers.

In a possible implementation manner, the determining module is further configured to, in the LBT indication information, determine an arrangement position of information indicating successful competition; when the configuration information indicates the order of arrangement of the plurality of carriers, According to the arrangement order, determine the carrier at the arrangement position among the plurality of carriers as the designated carrier.

According to a fourth aspect of an embodiment of the present disclosure, there is provided an information feedback device, the device comprising:

The first generation module is configured to generate LBT indication information of the multiple carriers according to the LBT monitoring results of the multiple carriers after determining the multiple carriers used for carrier aggregation, the LBT indication The information is used to indicate the competition results for the plurality of carriers;

A sending module, configured to send data to a user equipment UE on a designated carrier that successfully competes among the plurality of carriers;

The sending module is further configured to send the LBT indication information to the UE, and the UE is configured to return feedback information of the specified carrier according to the LBT indication information.

In a possible implementation manner, the device further includes:

a receiving module, configured to receive the feedback information returned by the UE;

A demodulation module, configured to demodulate the feedback information based on a specified codebook size, where the specified codebook size is the number of the specified carriers.

In a possible implementation manner, the first generating module is configured to determine an arrangement sequence of the multiple carriers according to the frequency domain resource positions of the multiple carriers; according to the arrangement sequence, the multiple The LBT monitoring results of the carriers are generated as the LBT indication information.

In a possible implementation manner, the device further includes:

A determining module, configured to, after determining a plurality of carriers used for carrier aggregation, determine an arrangement order of the plurality of carriers according to frequency domain resource positions of the plurality of carriers;

The second generation module generates configuration information of the multiple carriers according to the arrangement order and the time-frequency resource positions of the multiple carriers;

The sending module is further configured to send the configuration information to the UE, and the UE is configured to receive data on the multiple carriers according to the configuration information.

In a possible implementation manner, the second generating module is configured to generate time-frequency resource positions of the multiple carriers as the configuration information according to an arrangement order of the multiple carriers.

According to a fifth aspect of the embodiments of the present disclosure, a user equipment is provided, including:

processor;

memory for storing processor-executable instructions;

Wherein, the processor is configured to: receive LBT indication information from the base station, the LBT indication information is used to indicate the competition result of the base station for multiple carriers in carrier aggregation; according to the LBT indication information, from the Determining a designated carrier among the plurality of carriers, the designated carrier being a carrier that successfully competes among the plurality of carriers; sending a feedback of the designated carrier to the base station according to the receiving result of the data transmitted on the designated carrier information.

According to a sixth aspect of an embodiment of the present disclosure, there is provided a base station, including: a receiver, a transmitter, a memory, and a processor, and the receiver, the transmitter, and the memory are respectively connected to the processor;

Wherein, the memory is used to store processor-executable instructions, and the processor is configured to: after determining multiple carriers for carrier aggregation, according to the listen-before-talk LBT monitoring results on the multiple carriers, generating LBT indication information of the plurality of carriers, where the LBT indication information is used to indicate the result of the competition for the plurality of carriers; sending data to the user equipment UE on the specified carrier that successfully competes among the plurality of carriers; The LBT indication information is sent to the UE, and the UE is configured to return the feedback information of the specified carrier according to the LBT indication information.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

Determine the successful carrier among the aggregated carriers through the LBT indication information of the base station, and only provide feedback for the successful carrier, so that the base station and the UE can understand the same codebook size of the feedback information, and reduce the UE feedback information. The amount of data, thereby improving the codebook coding efficiency of the feedback information, while saving the energy of the UE and the carrier resources used for uplink feedback.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a flowchart showing an information feedback method according to an exemplary embodiment.

Fig. 2 is a flowchart showing an information feedback method according to an exemplary embodiment.

Fig. 3 is a flowchart showing an information feedback method according to an exemplary embodiment.

Fig. 4 is a block diagram of an information feedback device according to an exemplary embodiment.

Fig. 5A is a block diagram of an information feedback device according to an exemplary embodiment.

Fig. 5B is a block diagram of an information feedback device according to an exemplary embodiment.

Fig. 5C is a block diagram of an information feedback device according to an exemplary embodiment.

Fig. 6 is a schematic structural diagram of a user equipment according to an exemplary embodiment.

Fig. 7 is a schematic structural diagram of a base station according to an exemplary embodiment.

detailed description

In order to make the purpose, technical solution and advantages of the present disclosure clearer, the implementation manners of the present disclosure will be further described in detail below in conjunction with the accompanying drawings.

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

Fig. 1 is a flowchart of an information feedback method according to an exemplary embodiment. As shown in Fig. 1, the method is applied to a UE and includes the following steps:

In step 101, LBT indication information of the base station is received, and the LBT indication information is used to indicate the competition result of the base station for multiple carriers in carrier aggregation.

In step 102, according to the LBT indication information, a designated carrier is determined from the plurality of carriers, and the designated carrier is a successful carrier among the plurality of carriers.

In step 103, according to the receiving result of the data transmitted on the designated carrier, the feedback information of the designated carrier is sent to the base station.

The method provided by the embodiment of the present disclosure determines the successful carrier among the aggregated carriers through the LBT indication information of the base station, and only performs feedback on the successful carrier, so that the base station and the UE have the same understanding of the codebook size of the feedback information. On the one hand, the data volume of the UE feedback information is reduced, thereby improving the codebook coding efficiency of the feedback information, and saving the energy of the UE and the carrier resources used for uplink feedback.

In a possible implementation manner, the sending the feedback information of the designated carrier to the base station according to the receiving result of the data transmitted on the designated carrier includes:

If the data is received on the designated carrier and the received data is successfully decoded, sending first feedback information to the base station, where the first feedback information is used to indicate that the data transmitted on the designated carrier is successfully received;

If data is received on the designated carrier and the decoding of the received data fails, sending second feedback information to the base station, where the second feedback information is used to indicate that the data transmitted on the designated carrier fails to be received;

If no data is received on the designated carrier, send third feedback information to the base station.

In a possible implementation, the method further includes:

Receive configuration information of the multiple carriers, where the configuration information is used to indicate time-frequency resource locations of the multiple carriers;

Data reception is performed on the plurality of carriers based on the configuration information.

In a possible implementation manner, the configuration information is used to indicate the arrangement order of the multiple carriers, and according to the LBT indication information, determining a designated carrier from the multiple carriers includes:

In the LBT indication information, determine the arrangement position of the information indicating the success of the competition;

According to the arrangement sequence, the carrier at the arrangement position among the plurality of carriers is determined as the specified carrier.

All the above optional technical solutions may be combined in any way to form optional embodiments of the present disclosure, which will not be repeated here.

Fig. 2 is a flow chart of an information feedback method according to an exemplary embodiment. As shown in Fig. 2, the method is applied to a base station and includes the following steps:

In step 201, after determining a plurality of carriers for carrier aggregation, according to the listen-before-talk LBT monitoring results of the plurality of carriers, generate LBT indication information of the plurality of carriers, and the LBT indication information is used to indicate the The contention result of the plurality of carriers.

In step 202, data is sent to a user equipment UE on a designated carrier that successfully competes among the plurality of carriers.

In step 203, the LBT indication information is sent to the UE, and the UE is used to return the feedback information of the designated carrier according to the LBT indication information.

In the method provided by the embodiment of the present disclosure, according to the competition results of multiple carriers in carrier aggregation, LBT indication information indicating the carrier that competes successfully is generated, and the LBT indication information is sent to the UE, so that only the carrier that competes successfully is fed back , so that the base station and the UE have the same understanding of the codebook size of the feedback information, and reduce the data volume of the UE feedback information, thereby improving the codebook coding efficiency of the feedback information, and saving the energy of the UE and the energy used for Carrier resources for uplink feedback.

In a possible implementation, the method further includes:

receiving the feedback information returned by the UE;

The feedback information is demodulated based on a specified codebook size, which is the number of the specified carriers.

In a possible implementation manner, the generating the LBT indication information according to the LBT monitoring results of the multiple carriers includes:

determining an arrangement order of the multiple carriers according to the frequency domain resource positions of the multiple carriers;

According to the arrangement sequence, the LBT monitoring results of the multiple carriers are generated as the LBT indication information.

In a possible implementation, the method further includes:

After determining the plurality of carriers used for carrier aggregation, determine the arrangement order of the plurality of carriers according to the frequency domain resource positions of the plurality of carriers;

generating configuration information of the multiple carriers according to the arrangement order and the time-frequency resource positions of the multiple carriers;

The configuration information is sent to the UE, and the UE is used to receive data on the multiple carriers according to the configuration information.

In a possible implementation manner, the generating the configuration information of the multiple carriers according to the time-frequency resource positions of the multiple carriers includes:

According to the arrangement order of the multiple carriers, the time-frequency resource positions of the multiple carriers are generated as the configuration information.

All the above optional technical solutions may be combined in any way to form optional embodiments of the present disclosure, which will not be repeated here.

Fig. 3 is a flow chart of an information feedback method according to an exemplary embodiment. As shown in Fig. 3 , the subject of interaction is a UE and a base station, including the following steps:

In step 301, after determining the multiple carriers used for carrier aggregation, the base station determines the arrangement order of the multiple carriers according to the frequency domain resource positions of the multiple carriers.

When there is data to be sent, the base station can allocate multiple carriers to be invoked for the data. According to the frequency domain resource positions of the multiple carriers, the base station can sort the multiple carriers. For example, the base station determines the ascending order (or descending order) of the center frequency points of the plurality of carriers as the arrangement order of the plurality of carriers.

In step 302, the base station generates configuration information of multiple carriers according to the arrangement order and time-frequency resource positions of the multiple carriers, and sends the configuration information to the UE.

Wherein, the base station may generate the time-frequency resource positions of the multiple carriers as configuration information of the multiple carriers according to the arrangement order, and then send the configuration information to the UE.

In step 303, after determining multiple carriers for carrier aggregation, the base station generates LBT indication information for multiple carriers according to the LBT monitoring results for multiple carriers, and the LBT indication information is used to indicate the competition results for multiple carriers .

The multiple carriers used for carrier aggregation may include licensed carriers and unlicensed carriers, or may only include unlicensed carriers, which is not limited in this embodiment of the present invention.

For an unlicensed carrier, the base station needs to compete for resources of the unlicensed carrier through LBT. For example, the base station monitors whether the unlicensed carrier is idle through LBT, and if it is idle, determines that the unlicensed carrier is available, and the base station can perform data transmission on the unlicensed carrier. Wherein, the base station may detect the signal power of the unlicensed carrier to determine whether the unlicensed carrier is available. If the signal power is less than the preset threshold, it is determined that the unlicensed carrier is available; if the signal power is not less than the preset threshold, it is determined that the unlicensed carrier is unavailable. Wherein, when resources of the unlicensed carrier are available, it is determined that the competition for the unlicensed carrier succeeds.

For an authorized carrier, the base station can directly invoke the authorized carrier for data transmission without performing LBT monitoring on it. When the multiple carriers include a licensed carrier, the base station may default to successful competition for the licensed carrier.

The base station can generate LBT indication information for the multiple carriers according to the competition results for the multiple carriers. For example, the base station may generate the LBT monitoring results of the multiple carriers as the LBT indication information according to the sequence of the multiple carriers determined in step 301 . Wherein, the LBT indication information may be a bitmap table, in which 1 bit (bit) may be used for each carrier to indicate the competition result of the carrier, for example, 1 is used to indicate the success of the competition, and 0 is used to indicate the failure of the competition. For example, the number of the plurality of carriers is 10, and the arrangement order of the plurality of carriers is carrier 1 to carrier 10, then the LBT indication information (bitmap) generated by the base station may be "1, 1, 0, 1, 0, 0 , 1, 0, 1, 1".

It should be noted that the process of generating LBT indication information of multiple carriers in step 303 can also be performed before the process of generating configuration information in step 302 above, or the two processes can also be performed at the same time. The order of execution is not limited.

In step 304, the base station sends data to the UE on a designated carrier that successfully competes among the multiple carriers.

The base station may perform LBT monitoring on the multiple carriers, and then send data to the UE on the specified carrier indicated by the monitoring result. Wherein, the number of specified carriers may be one or more. Among them, since the time for the base station to perform LBT monitoring is usually at the level of microseconds, and one subframe is at the level of milliseconds, in order to improve resource utilization, the base station can transmit information to UE sends data.

It should be noted that, for the data sent on the designated carrier, the base station will also send the control information of the designated carrier to the UE. The control information includes the time-frequency resource location of the designated carrier and the modulation mode of the data, so that the UE can Information, to receive the data transmitted by the specified carrier.

It should be noted that the process of sending data to the UE on the designated carrier in this step may also be performed before the process of generating the LBT indication information in step 303 above, or the two processes may be performed simultaneously, which is not limited in this embodiment of the present disclosure.

In step 305, the UE performs data reception on the multiple carriers according to the configuration information of the base station.

According to the control information sent by the base station, the UE can determine the time-frequency resource position and the modulation mode of the carrier carrying the data. According to the determined time-frequency resource position and the modulation mode, data reception is performed on the carrier. The data receiving process may be: the UE demodulates the carrier, and then decodes the demodulated data. If the decoding is successful , then it is determined that the data transmitted by the carrier is successfully received; if the decoding fails, it is determined that the data transmitted by the carrier fails to be received. However, if the control information corresponding to the carrier is lost, the UE determines that no data is transmitted on the carrier, and will not receive data on the carrier. Wherein, the loss of the control information of the carrier may mean that the PDCCH (Physical Uplink Control Channel, Physical Uplink Control Channel) carrying the control information is lost, or an error occurs in the PDCCH, which leads to the failure of demodulation of the PDCCH, so that the UE cannot correctly obtain the control information.

In combination with the above receiving process, the data receiving result of the UE on a certain carrier in this embodiment may include: receiving successfully, receiving failed, and not received. In addition, for each of the multiple carriers indicated by the configuration information, the UE may record the data reception result corresponding to the carrier.

In step 306, the base station sends LBT indication information to the UE.

Assuming that the base station sends data to the UE in the nth subframe, the base station may send the LBT indication information to the UE in the n+1 subframe. Certainly, the base station may send the LBT indication information to the UE in any subframe within the period indicated by sending data to the UE and returning the feedback message from the UE, which is not limited in this embodiment of the present disclosure. The UE may detect the LBT indication information of the base station within this time period. For example, the base station may configure a specified identifier for the LBT indication information, and if the UE receives the information carrying the specified identifier, it may determine that the LBT indication information of the base station has been received. Wherein, the specified identifier may be preconfigured or changed by the base station, which is not limited in this embodiment of the present disclosure.

Further, in order to reduce the energy consumption caused by the UE continuously detecting the LBT indication information of the base station within the above time period, the base station may also send scheduling information for sending the LBT indication information to the UE in advance. The scheduling information of the LBT indication information includes the location of the time-frequency resource bearing the LBT indication information, so that the UE can accurately locate the LBT indication information, thereby receiving the LBT indication information.

In another embodiment, the base station can also send the LBT indication information to the UE before sending data to the UE, and the UE can determine the designated carrier that has successfully competed from the configured multiple carriers according to the LBT indication information, so that the UE can only target The designated carrier performs data reception, thereby reducing the energy consumption of detecting the carrier by the UE.

In step 307, the UE determines a designated carrier from multiple carriers according to the received LBT indication information.

The UE may determine the arrangement order of the multiple carriers according to the configuration information sent by the base station. After receiving the LBT indication information, the UE determines the arrangement position of the information indicating successful competition in the LBT indication information; among multiple carriers, determines the carrier at the corresponding arrangement position as the designated carrier.

Taking the above Table 1 as an example, the UE determines the arrangement position of the information that is not 0 in the LBT indication information, and the arrangement positions of the information that is not 0 in Table 1 are "1, 2, 4, 7, 9, 10", respectively. Then, the UE may determine the carrier whose arrangement position is "1, 2, 4, 7, 9, 10" among the multiple carriers as the designated carrier. Assuming that the 10 carriers are numbered 1-10 according to the arrangement sequence, the specified carriers are carrier 1, carrier 2, carrier 4, carrier 7, carrier 9, and carrier 10. Wherein, the number of specified carriers is 6.

In step 308, the UE sends the feedback information of the designated carrier to the base station according to the receiving result of the data transmitted on the designated carrier.

In step 303, the UE may correspond to the multiple carriers indicated by the received configuration information, and record the reception results of the data transmitted on the multiple carriers. Based on the determined specified carrier, the UE determines the reception result of the data transmitted on the specified carrier from the reception results of the data transmitted on multiple carriers, and sends the feedback information of the specified carrier to the base station based on the reception result. The process can be: if in The designated carrier receives the data and successfully decodes the received data, then sends the first feedback information to the base station, the first feedback information is used to indicate that the data transmitted on the designated carrier is successfully received; if the designated carrier receives the data , and the decoding of the received data fails, the second feedback information is sent to the base station, the second feedback information is used to indicate the failure to receive the data transmitted on the designated carrier; if no data is received on the designated carrier, then the The base station sends third feedback information, where the third feedback information may be used to indicate that the control information corresponding to the designated carrier is lost.

Wherein, the UE may determine the codebook size of the feedback information according to the number of designated carriers. For example, taking Table 1 above as an example, in step 307 it can be determined that the number of designated carriers is 6, and the codebook size of the feedback information is 6. Wherein, the first feedback information may be ACK information, the second feedback information may be NACK information, and the third feedback information may be DTX (DTX Discontinuous Transmission, discontinuous transmission) information. The following compares the information feedback methods in this embodiment and related technologies by using three assumptions of the UE receiving results, so as to better illustrate the advantages of this embodiment:

Assumption 1: The reception results of the UE for the designated carriers indicated in Table 1 are: Carrier 1, Carrier 2, Carrier 4 and Carrier 10 are successfully received, and Carrier 7 and Carrier 9 fail to be received, then the feedback information of the designated carriers can be in order " ACK, ACK, ACK, NACK, NACK, ACK".

Under this assumption, this embodiment uses the LBT indication information to feed back the designated carriers that compete successfully, so that the UE and the base station have a consistent understanding of the codebook size of the feedback information, and at the same time, do not feed back the carriers that fail the competition, reducing the The codebook size of the feedback information, for example, the assumed codebook size is 6 bits. However, in the related art where DAI is used to number carriers, the UE needs to feed back all carriers, and the codebook size of the feedback information is 10 bits.

Assumption 2: The reception results of the UE for the designated carriers indicated in Table 1 are: the reception of carrier 1, carrier 2 and carrier 10 is successful, the reception of carrier 7 and carrier 9 fails, and the control information corresponding to carrier 4 is lost, then the designated carrier The feedback information can be "ACK, ACK, DTX, NACK, NACK, ACK" in sequence.

Under this assumption, the UE feeds back DTX to the carrier that has successfully competed but has not received data, so that the base station can learn that the data transmission on the carrier fails. Since the UE can feed back all carriers that have successfully competed, the base station and the UE have a consistent understanding of the codebook size of the feedback information, which is 6 bits. However, in the related art where DAI is used to number carriers, if the control information corresponding to carrier 4 is lost, combined with the data reception results of the UE, it can be determined that the UE has received data on carriers 3 to 6. Therefore, The DAI numbers of carrier 1, carrier 2, carrier 7, and carrier 10 received by the UE are "00, 01, 10, 01" in sequence. It can be seen that the codes of carrier 2 and carrier 7 are continuous. Therefore, the UE will determine carrier 3 to carrier 6 None of them are called, but only feed back on carrier 1, carrier 2, carrier 7, carrier 8, carrier 9 and carrier 10, and set the codebook size of the feedback information to 6bit, and the base station determines that the number of carriers to be called is 10bit, The size of the codebook fed back by the UE should be 10 bits, which leads to inconsistent understanding of the codebook size by the base station and the UE, and makes the base station unable to correctly demodulate the feedback information from the UE.

Assumption 3: The reception results of the UE for the designated carriers indicated in Table 1 are: carrier 1, carrier 2 and carrier 4 are successfully received, carrier 7 and carrier 9 fail to be received, and the control information corresponding to carrier 10 is lost, then the designated carrier The feedback information can be "ACK, ACK, ACK, NACK, NACK, DTX" in sequence.

Under this assumption, the UE feeds back DTX to the carrier that has successfully competed but has not received data, so that the base station can learn that the data transmission on the carrier fails. Since the UE can feed back all carriers that have successfully competed, the base station and the UE have a consistent understanding of the codebook size of the feedback information, which is 6 bits. However, in the related art where DAI is used to number carriers, if the control information corresponding to carrier 10 is lost, since the UE has not received the data transmitted on carrier 10, it is determined that the last carrier received is carrier 9, so , the UE sets the codebook size of the feedback information to 9 bits, and the base station determines that the number of carriers to be called is 10, and the codebook size fed back by the UE should be 10, resulting in inconsistent understanding of the codebook size between the base station and the UE, resulting in the base station being unable to Correctly demodulate the feedback information of the UE.

In summary, the information feedback method provided by this embodiment can ensure that the UE and the base station have a consistent understanding of the codebook size of the feedback information, reduce the codebook size of the feedback information, and improve the codebook encoding efficiency of the feedback information. At the same time, since the size of the codebook of the feedback information is reduced, the transmit power of the UE to send the feedback information is reduced, thereby reducing the energy consumption of the UE and saving uplink carrier resources.

It should be noted that the UE may determine the modulation mode of the feedback information according to the codebook size of the feedback information, for example, determine the PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel, Physical Uplink Control Channel) matching the codebook size according to the codebook size of the feedback information. Uplink Control Channel) format, the PUCCH format is used to indicate the modulation mode of the feedback information. Correspondingly, since a PUCCH format corresponds to a PUCCH resource set in the communication system, the UE can determine the PUCCH uplink carrier from the corresponding PUCCH resource set, and based on the uplink carrier, send the feedback information to the base station using a determined modulation method .

In step 309, after receiving the feedback information returned by the UE, the base station demodulates the feedback information based on the specified codebook size, where the specified codebook size is the number of specified carriers.

After the base station determines the designated carrier that successfully competes, it can determine the number of the designated carrier, and determine the number of the designated carrier as the codebook size of the feedback information, that is, the designated codebook size. The base station can determine the modulation method of the feedback information according to the specified codebook size, for example, according to the codebook size of the feedback information, determine the PUCCH format that matches the codebook size, so that the modulation method indicated by the PUCCH format is determined as The modulation mode of the feedback information, so that the feedback information is demodulated based on the modulation mode. The base station decides whether to perform data retransmission according to the demodulation result of the feedback information. This process can be divided into the following three cases: Case 1. If the feedback information obtained by the base station demodulation is the first feedback information, it is determined that the UE has successfully received this If the data sent for the first time is sent, the next data is sent to the UE. Case 2: If the base station demodulates and obtains the feedback information as the second feedback information, and determines that the UE fails to receive the data sent this time due to decoding failure, it retransmits the data to the UE. Case 3: If the base station demodulates and obtains that the feedback information is the third feedback information, and determines that the control information corresponding to the designated carrier is lost, data retransmission is performed to the UE.

It should be noted that the process of the base station deciding whether to perform data retransmission according to the demodulation result of the feedback information is an example of any carrier in the specified carrier. The above process is applicable to each carrier in the specified carrier. When there are multiple designated carriers, the above process is used for the feedback information corresponding to each carrier to perform data retransmission or to send the next data, which will not be repeated here.

It should be noted that in this embodiment, both the base station and the UE understand the codebook size of the feedback information as the number of designated carriers. Therefore, after the base station determines the PUCCH format according to the codebook size, it can In the resource set, a PUCCH uplink carrier for carrying feedback information is selected for the UE, and the time-frequency resource location information of the uplink carrier is configured to the UE, so that the UE can directly use the uplink carrier to return the feedback information of the first resource.

The method provided by the embodiment of the present disclosure determines the successful carrier among the aggregated carriers through the LBT indication information of the base station, and only performs feedback on the successful carrier, so that the base station and the UE have the same understanding of the codebook size of the feedback information. On the one hand, the data volume of the UE feedback information is reduced, thereby improving the codebook coding efficiency of the feedback information, and saving the energy of the UE and the carrier resources used for uplink feedback.

Fig. 4 is a block diagram of an information feedback device according to an exemplary embodiment. Referring to FIG. 4 , the device includes a receiving module 401 , a determining module 402 and a sending module 403 .

Wherein, the receiving module 401 is connected with the determining module 402, and is used to receive the LBT instruction information of the base station, and the LBT instruction information is used to indicate the competition result of the base station for multiple carriers in the carrier aggregation; the determining module 402 and the sending module 403 The connection is configured to determine a designated carrier from the plurality of carriers according to the LBT indication information, and the designated carrier is a carrier that successfully competes among the plurality of carriers; the sending module 403 is configured to determine the designated carrier according to the data transmitted on the designated carrier After receiving the result, send the feedback information of the designated carrier to the base station.

In a possible implementation manner, the sending module 403 is used to:

If data is received on the specified carrier and the received data is decoded successfully, then first feedback information is sent to the base station, where the first feedback information is used to indicate that the data transmitted on the specified carrier is successfully received; The designated carrier receives data and fails to decode the received data, then sends second feedback information to the base station, where the second feedback information is used to indicate that the data transmitted on the designated carrier fails to be received; if the designated carrier fails to receive data; If no data is received on the carrier, third feedback information is sent to the base station.

In a possible implementation manner, the receiving module 401 is also configured to receive configuration information of the multiple carriers, where the configuration information is used to indicate the time-frequency resource locations of the multiple carriers; based on the configuration information, in the multiple Receive data on the carrier.

In a possible implementation manner, the determining module 402 is also configured to determine, in the LBT indication information, the arrangement position of the information indicating successful competition; when the configuration information indicates the order of arrangement of the plurality of carriers, according to the arrangement In order, the carrier at the arrangement position among the multiple carriers is determined as the designated carrier.

The device provided by the embodiment of the present disclosure determines the successful carrier among the aggregated carriers through the LBT indication information of the base station, and only performs feedback on the successful carrier, so that the base station and the UE have the same understanding of the codebook size of the feedback information. On the one hand, the data volume of the UE feedback information is reduced, thereby improving the codebook coding efficiency of the feedback information, and at the same time saving the energy of the UE and carrier resources for uplink feedback

Fig. 5A is a block diagram of an information feedback device according to an exemplary embodiment. Referring to FIG. 5A , the device includes a first generating module 501 and a sending module 502 .

Wherein, the first generating module 501 is connected with the sending module 502, and is configured to generate LBT indications of the multiple carriers according to the listen-before-talk LBT monitoring results of the multiple carriers after determining multiple carriers for carrier aggregation information, the LBT indication information is used to indicate the result of the competition for the plurality of carriers; the sending module 502 is configured to send data to the user equipment UE on the specified carrier that competes successfully among the plurality of carriers; the sending module 502 is also used for The LBT indication information is sent to the UE, and the UE is used to return the feedback information of the specified carrier according to the LBT indication information.

In a possible implementation, referring to FIG. 5B, the device further includes:

A receiving module 503, configured to receive the feedback information returned by the UE;

The demodulation module 504 is configured to demodulate the feedback information based on a specified codebook size, where the specified codebook size is the number of the specified carrier.

In a possible implementation manner, the first generation module 501 is configured to determine an arrangement order of the plurality of carriers according to the frequency domain resource positions of the plurality of carriers; according to the arrangement order, the LBT of the plurality of carriers The monitoring result is generated as the LBT indication information.

In a possible implementation, referring to FIG. 5C, the device further includes:

A determining module 505, configured to determine the arrangement order of the multiple carriers according to the frequency domain resource positions of the multiple carriers after determining the multiple carriers used for carrier aggregation;

The second generating module 506 generates configuration information of the multiple carriers according to the arrangement order and the time-frequency resource positions of the multiple carriers;

The sending module 502 is also configured to send the configuration information to the UE, and the UE is used to receive data on the multiple carriers according to the configuration information.

In a possible implementation manner, the second generating module 506 is configured to generate the time-frequency resource positions of the multiple carriers as the configuration information according to the order in which the multiple carriers are arranged.

The device provided by the embodiment of the present disclosure generates LBT indication information indicating the carrier with successful competition according to the competition results of multiple carriers in carrier aggregation, and sends the LBT indication information to the UE, so that only the carrier with successful competition is fed back , so that the base station and the UE have the same understanding of the codebook size of the feedback information, and reduce the data volume of the UE feedback information, thereby improving the codebook coding efficiency of the feedback information, and saving the energy of the UE and the energy used for Carrier resources for uplink feedback.

Regarding the apparatus in the foregoing embodiments, the specific manner in which each module executes operations has been described in detail in the embodiments related to the method, and will not be described in detail here.

Fig. 6 is a schematic structural diagram of a user equipment according to an exemplary embodiment. For example, the user equipment 600 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.

Referring to FIG. 6, user equipment 600 may include one or more of the following components: processing component 602, memory 604, power supply component 606, multimedia component 608, audio component 610, input/output (I/O) interface 612, sensor component 614, and communication component 616 .

The processing component 602 generally controls the overall operations of the user device 600, such as those associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 602 may include one or more processors 620 to execute instructions to complete all or part of the steps of the above method. Additionally, processing component 602 may include one or more modules that facilitate interaction between processing component 602 and other components. For example, processing component 602 may include a multimedia module to facilitate interaction between multimedia component 608 and processing component 602 .

The memory 604 is configured to store various types of data to support operations at the user equipment 600 . Examples of such data include instructions for any application or method operating on user device 600, contact data, phonebook data, messages, pictures, videos, and the like. The memory 604 can be implemented by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.

The power supply component 606 provides power to various components of the user equipment 600 . Power components 606 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for user device 600 .

The multimedia component 608 includes a screen providing an output interface between the user device 600 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or swipe action, but also detect duration and pressure associated with the touch or swipe action. In some embodiments, the multimedia component 608 includes a front camera and/or a rear camera. When the user equipment 600 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.

The audio component 610 is configured to output and/or input audio signals. For example, the audio component 610 includes a microphone (MIC), which is configured to receive external audio signals when the user equipment 600 is in operation modes, such as call mode, recording mode and voice recognition mode. Received audio signals may be further stored in memory 604 or sent via communication component 616 . In some embodiments, the audio component 610 also includes a speaker for outputting audio signals.

The I/O interface 612 provides an interface between the processing component 602 and a peripheral interface module. The peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: a home button, volume buttons, start button, and lock button.

Sensor component 614 includes one or more sensors for providing user equipment 600 with status assessments of various aspects. For example, the sensor component 614 can detect the open/closed state of the user device 600, the relative positioning of components, such as the display and the keypad of the user device 600, and the sensor component 614 can also detect the user device 600 or a user device 600 Changes in position of components, presence or absence of user contact with user device 600 , user device 600 orientation or acceleration/deceleration and temperature changes of user device 600 . The sensor assembly 614 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. Sensor assembly 614 may also include optical sensors, such as CMOS or CCD image sensors, for use in imaging applications. In some embodiments, the sensor component 614 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.

The communication component 616 is configured to facilitate wired or wireless communication between the user equipment 600 and other devices. The user equipment 600 can access a wireless network based on communication standards, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 616 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 616 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wide Band (UWB) technology, Bluetooth (BT) technology and other technologies.

In an exemplary embodiment, user equipment 600 may be powered by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable Realized by a programmable gate array (FPGA), a controller, a microcontroller, a microprocessor or other electronic components, it is used to execute the steps performed by the UE in the above information feedback method.

In an exemplary embodiment, there is also provided a non-transitory computer-readable storage medium including instructions, such as the memory 604 including instructions, which can be executed by the processor 620 of the user equipment 600 to complete the above method. For example, the non-transitory computer readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

In an exemplary embodiment, a non-transitory computer-readable storage medium is also provided, and when instructions in the storage medium are executed by a processor of the user equipment, the user equipment can perform the above information feedback method described by the UE. steps to execute.

Fig. 7 is a schematic structural diagram of a base station according to an exemplary embodiment, including: a receiver 701, a transmitter 702, a memory 703, and a processor 704, and the receiver 701, the transmitter 702, and the memory 703 are respectively connected with The processor 704 is connected, and the memory 703 is used for storing processor-executable instructions, and the processor 704 is configured to execute the steps executed by the base station in the above information feedback method.

In an exemplary embodiment, there is also provided a non-transitory computer-readable storage medium including instructions, such as a memory including instructions, the above instructions can be executed by a processor in the base station to complete the server in the information feedback method in the above embodiments steps performed. For example, the non-transitory computer readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

Other embodiments of the present disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, and these modifications, uses or adaptations follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed in the present disclosure . The specification and examples are to be considered exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It should be understood that the present disclosure is not limited to the precise constructions which have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (20)

1. A kind of information feedback method is characterized in that, described method comprises: receiving listen-before-talk LBT indication information from the base station, where the LBT indication information is used to indicate the base station's competition results for multiple carriers in carrier aggregation; Determine a designated carrier from the plurality of carriers according to the LBT indication information, where the designated carrier is a carrier that successfully competes among the plurality of carriers; Sending the feedback information of the designated carrier to the base station according to the receiving result of the data transmitted on the designated carrier. 2. The method according to claim 1, wherein the sending the feedback information of the designated carrier to the base station according to the receiving result of the data transmitted on the designated carrier comprises: If data is received on the designated carrier and the received data is decoded successfully, then first feedback information is sent to the base station, where the first feedback information is used to indicate reception of the data transmitted on the designated carrier success; If data is received on the designated carrier, and the decoding of the received data fails, sending second feedback information to the base station, where the second feedback information is used to indicate reception of the data transmitted on the designated carrier fail; If no data is received on the designated carrier, sending third feedback information to the base station. 3. The method according to claim 1, characterized in that the method further comprises: receiving configuration information of the multiple carriers, where the configuration information is used to indicate time-frequency resource locations of the multiple carriers; Data reception is performed on the plurality of carriers based on the configuration information. 4. The method according to claim 3, wherein the configuration information is used to indicate the arrangement order of the multiple carriers, and the specified carrier is determined from the multiple carriers according to the LBT indication information include: In the LBT indication information, determine the arrangement position of the information indicating the success of the competition; According to the arrangement order, determine the carrier at the arrangement position among the plurality of carriers as the designated carrier. 5. A kind of information feedback method, is characterized in that, described method comprises: After determining multiple carriers for carrier aggregation, generate LBT indication information according to the listen-before-talk LBT monitoring results for the multiple carriers, where the LBT indication information is used to indicate the competition result for the multiple carriers ; sending data to the user equipment UE on the specified carrier that successfully competes among the plurality of carriers; sending the LBT indication information to the UE, and the UE is configured to return the feedback information of the designated carrier according to the LBT indication information. 6. The method according to claim 5, further comprising: receiving the feedback information returned by the UE; The feedback information is demodulated based on a specified codebook size, which is the number of specified carriers. 7. The method according to claim 5, wherein the generating LBT indication information according to the listen-before-talk LBT monitoring results of the plurality of carriers comprises: determining an arrangement sequence of the multiple carriers according to the frequency domain resource positions of the multiple carriers; According to the arrangement sequence, the LBT monitoring results of the multiple carriers are generated as the LBT indication information. 8. The method according to claim 5, further comprising: After determining the plurality of carriers used for carrier aggregation, determine the arrangement order of the plurality of carriers according to the frequency domain resource positions of the plurality of carriers; generating configuration information of the multiple carriers according to the arrangement order and the time-frequency resource positions of the multiple carriers; sending the configuration information to the UE, where the UE is configured to receive data on the multiple carriers according to the configuration information. 9. The method according to claim 8, wherein the generating configuration information of the multiple carriers according to the time-frequency resource positions of the multiple carriers comprises: According to the arrangement order of the multiple carriers, generate the time-frequency resource positions of the multiple carriers as the configuration information. 10. An information feedback device, characterized in that the device comprises: The receiving module is used to receive LBT indication information of the base station, and the LBT indication information is used to indicate the competition result of the base station for multiple carriers in carrier aggregation; A determining module, configured to determine a designated carrier from the plurality of carriers according to the LBT indication information, where the designated carrier is a carrier that successfully competes among the plurality of carriers; A sending module, configured to send the feedback information of the designated carrier to the base station according to the receiving result of the data transmitted on the designated carrier. 11. The device according to claim 10, wherein the sending module is used for: If data is received on the designated carrier and the received data is decoded successfully, then first feedback information is sent to the base station, where the first feedback information is used to indicate reception of the data transmitted on the designated carrier success; If data is received on the designated carrier, and the decoding of the received data fails, sending second feedback information to the base station, where the second feedback information is used to indicate reception of the data transmitted on the designated carrier fail; If no data is received on the designated carrier, sending third feedback information to the base station. 12. The device according to claim 10, wherein the receiving module is further configured to receive configuration information of the multiple carriers, the configuration information is used to indicate the time-frequency resource locations of the multiple carriers; Data reception is performed on the plurality of carriers based on the configuration information. 13. The device according to claim 12, wherein the determination module is further configured to, in the LBT indication information, determine the arrangement position of the information indicating the success of the competition; when the configuration information indicates that the multiple In the arrangement order of the carriers, according to the arrangement order, the carrier at the arrangement position among the plurality of carriers is determined as the specified carrier. 14. An information feedback device, characterized in that the device comprises: The first generation module is configured to generate LBT indication information of the multiple carriers according to the LBT monitoring results of the multiple carriers after determining the multiple carriers used for carrier aggregation, the LBT indication The information is used to indicate the competition results for the plurality of carriers; A sending module, configured to send data to a user equipment UE on a designated carrier that successfully competes among the plurality of carriers; The sending module is further configured to send the LBT indication information to the UE, and the UE is configured to return feedback information of the specified carrier according to the LBT indication information. 15. The device according to claim 14, further comprising: a receiving module, configured to receive the feedback information returned by the UE; A demodulation module, configured to demodulate the feedback information based on a specified codebook size, where the specified codebook size is the number of the specified carriers. 16. The device according to claim 14, wherein the first generating module is configured to determine an arrangement order of the plurality of carriers according to frequency domain resource positions of the plurality of carriers; according to the arrangement order , generating LBT monitoring results on the multiple carriers as the LBT indication information. 17. The device according to claim 14, further comprising: A determining module, configured to, after determining a plurality of carriers used for carrier aggregation, determine an arrangement order of the plurality of carriers according to frequency domain resource positions of the plurality of carriers; The second generation module generates configuration information of the multiple carriers according to the arrangement order and the time-frequency resource positions of the multiple carriers; The sending module is further configured to send the configuration information to the UE, and the UE is configured to receive data on the multiple carriers according to the configuration information. 18. The device according to claim 17, wherein the second generating module is configured to generate the time-frequency resource positions of the multiple carriers as the configuration information according to the arrangement sequence of the multiple carriers . 19. A user equipment, characterized by comprising: processor; memory for storing processor-executable instructions; Wherein, the processor is configured to: receive LBT indication information from the base station, the LBT indication information is used to indicate the competition result of the base station for multiple carriers in carrier aggregation; according to the LBT indication information, from the Determining a designated carrier among the plurality of carriers, the designated carrier being a carrier that successfully competes among the plurality of carriers; sending a feedback of the designated carrier to the base station according to the receiving result of the data transmitted on the designated carrier information. 20. A base station, comprising: a receiver, a transmitter, a memory, and a processor, and the receiver, the transmitter, and the memory are respectively connected to the processor; Wherein, the memory is used to store processor-executable instructions, and the processor is configured to: after determining multiple carriers for carrier aggregation, according to the listen-before-talk LBT monitoring results on the multiple carriers, generating LBT indication information of the plurality of carriers, where the LBT indication information is used to indicate the result of the competition for the plurality of carriers; sending data to the user equipment UE on the specified carrier that successfully competes among the plurality of carriers; The LBT indication information is sent to the UE, and the UE is configured to return the feedback information of the specified carrier according to the LBT indication information.