Communication method, apparatus and device, and readable storage medium

Abstract

The application of the invention is a divisional application of 202080000575.7. The invention provides a communication method, device and equipment and a readable storage medium, and relates to the field of communication. The method comprises the following steps: determining a first listen before talk (LBT) frequency band with successful channel monitoring from at least two LBT frequency bands; and sending the uplink communication message on a first physical uplink control channel (PUCCH) on the first LBT frequency band. Channel monitoring is carried out on at least two LBT frequency bands, so that a first LBT frequency band which succeeds in channel monitoring is determined from the at least two LBT frequency bands, and an uplink communication message is sent on a first physical uplink control channel PUCCH of the first LBT frequency band, so that when a high-priority HARQ-ACK message is transmitted, the channel can be occupied with a higher probability, and the transmission efficiency of the HARQ-ACK message is improved. Therefore, the low-delay and high-reliability transmission of the PUCCH channel information is ensured.

Description

[0001] This application is a divisional application of the invention patent application filed on March 17, 2020, with application number 202080000575.7 and invention title "Communication Method, Apparatus, Device and Readable Storage Medium". Technical Field

[0002] This disclosure relates to the field of communications, and in particular to a communication method, apparatus, device, and readable storage medium. Background Technology

[0003] The 3rd Generation Partnership Project (3GPP) defines three major directions for 5G application scenarios: Enhanced Mobile Broadband (eMBB), Massive Machine Type of Communication (mMTC), and Ultra-Reliable & Low Latency Communication (URLLC).

[0004] When a terminal sends a Hybrid Automatic Repeat Response (HARQ-ACK) message on an unlicensed frequency band, it first needs to perform channel listening on the ListenBefore Talk (LBT) band of the Physical Uplink Control Channel (PUCCH). If channel listening fails, the terminal cannot send the HARQ-ACK message, which does not meet the low latency requirements of URLLC services. Summary of the Invention

[0005] This application provides a communication method, apparatus, device, and readable storage medium that enables reliable and low-latency transmission of HARQ-ACK information over unlicensed frequency bands. The technical solution is as follows:

[0006] On the one hand, a communication method is provided for use in a terminal, the method comprising:

[0007] Determine the first LBT band from at least two listen-before-speak LBT bands where channel monitoring was successful;

[0008] Uplink communication messages are transmitted on the first physical uplink control channel (PUCCH) in the first LBT frequency band.

[0009] On the other hand, a communication method is provided, applied to an access network device, the method comprising:

[0010] Listen for uplink communication messages sent by the terminal on the first physical uplink control channel (PUCCH) of at least two listen-before-speak LBT bands.

[0011] On the other hand, a communication device is provided for use in a terminal, the device comprising:

[0012] The processing module is used to determine the first LBT band from at least two listen-before-speak LBT bands where channel listening was successful;

[0013] The transmitting module is used to transmit uplink communication messages on the first physical uplink control channel (PUCCH) in the first LBT frequency band.

[0014] On the other hand, a communication device is provided for use in an access network device, the device comprising:

[0015] The receiving module is used to listen for uplink communication messages sent by the terminal on the first physical uplink control channel (PUCCH) of at least two READ-READ LBT bands.

[0016] On the other hand, a terminal is provided, the terminal comprising:

[0017] processor;

[0018] A transceiver connected to the processor;

[0019] The processor is configured to load and execute executable instructions to implement the communication method as described in the embodiments of this application above.

[0020] On the other hand, an access network device is provided, the access network device comprising:

[0021] processor;

[0022] A transceiver connected to the processor;

[0023] The processor is configured to load and execute executable instructions to implement the communication method as described in the embodiments of this application above.

[0024] On the other hand, a computer-readable storage medium is provided that stores at least one instruction, at least one program, code set, or instruction set, wherein the at least one instruction, at least one program, code set, or instruction set is loaded and executed by a processor to implement the communication method as described in the embodiments of this application above.

[0025] The beneficial effects of the technical solutions provided in this application include at least the following:

[0026] By monitoring at least two LBT bands, the first LBT band that was successfully monitored is determined from the at least two LBT bands. Uplink communication messages are then sent on the first physical uplink control channel (PUCCH) of the first LBT band. As a result, high-priority HARQ-ACK messages can occupy the channel with a higher probability during transmission, thereby ensuring low latency and high reliability transmission of PUCCH channel information. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a block diagram of a communication system provided in an exemplary embodiment of this disclosure;

[0029] Figure 2 This is a flowchart of a communication method provided in an exemplary embodiment of this disclosure;

[0030] Figure 3 This is a flowchart of a communication method provided in another exemplary embodiment of this disclosure;

[0031] Figure 4 This is a flowchart of a resource scheduling method provided in an exemplary embodiment of this disclosure;

[0032] Figure 5 This is a flowchart of a resource scheduling method provided in another exemplary embodiment of this disclosure;

[0033] Figure 6 This is a structural block diagram of a communication device provided in an exemplary embodiment of the present disclosure;

[0034] Figure 7 This is a structural block diagram of a communication device provided in another exemplary embodiment of this disclosure;

[0035] Figure 8 This is a structural block diagram of a resource scheduling apparatus provided in an exemplary embodiment of this disclosure;

[0036] Figure 9 This is a structural block diagram of a resource scheduling apparatus provided in another exemplary embodiment of this disclosure;

[0037] Figure 10 This is a block diagram of a terminal provided in an exemplary embodiment of this disclosure;

[0038] Figure 11This is a block diagram of an access network device provided in an exemplary embodiment of this disclosure. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0040] Figure 1 A block diagram of a communication system provided in an illustrative embodiment of the present disclosure is shown. The communication system may include: a core network 11, an access network 12, and a terminal 13.

[0041] The core network 11 includes several core network devices 110. These core network devices 110 include Access and Mobility Management Function (AMF), Session Management Function (SMF), and User Plane Function (UPF), among others. The AMF controls terminal access permissions and handover functions, while the SMF provides server continuity and uninterrupted user experience, such as handling IP address and anchor point changes.

[0042] Access network 12 includes several access network devices 120. Each access network device 120 can be a base station, which is a device deployed in the access network to provide wireless communication functions for terminals. Base stations can include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems employing different wireless access technologies, the names of devices with base station functions may differ. For example, in Long Term Evolution (LTE) systems, they are called eNodeB or eNB; in 5G New Radio (NR) systems, they are called gNodeB or gNB. As communication technologies evolve, the term "base station" may change. For convenience in this embodiment, the aforementioned devices providing wireless communication functions for terminals are collectively referred to as access network devices.

[0043] Terminal 13 may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user equipment (UE), mobile station (MS), terminal device, etc. For ease of description, the devices mentioned above are collectively referred to as terminals. Access network device 120 and terminal 13 communicate with each other through some air interface technology, such as the Uu interface.

[0044] Optionally, during the wireless communication between the terminal 13 and the access network device 120, wireless communication can be conducted using either licensed or unlicensed frequency bands. Optionally, in this embodiment, the example of wireless communication between the terminal 13 and the access network device 120 using unlicensed frequency bands will be used for illustration.

[0045] In NR systems, Uplink Control Information (UCI) is control information transmitted by the UE to the base station, carried on the Physical Uplink Control Channel (PUCCH) or the Physical Uplink Share Channel (PUSCH). The UCI includes a Hybrid Automatic Repeat Request Acknowledge character (HARQ-ACK) for downlink data, used to inform the base station whether the received downlink data has been correctly received. This includes an Acknowledge character (ACK) and a Negative Acknowledge character (NACK). The Acknowledge character indicates that the UE has correctly received the downlink data, while the NACK indicates that the UE has failed to receive the downlink data.

[0046] In the standard discussion and design of R16 NR unlicensed spectrum (NR-U), the transmitter generally needs to listen to the channel before sending a communication message. Only after the channel listening is successful, that is, after confirming that the channel being listened to is not occupied by other transmitters, can the communication message be sent on the channel. This is the Listen Before Talk (LBT) channel occupancy mechanism.

[0047] The transmitting end uses an LBT band (20MHz) as the frequency unit for channel listening. The uplink resources configured by the base station for the UE, i.e., the uplink bandwidth (BWP), can include one or more LBT bands. On unlicensed frequency bands, when the base station configures PUCCH resources for the UE, it needs to configure the LBT band location of the PUCCH resource, such as configuring the index value of the LBT band where the PUCCH resource is located, and the PUCCH resource is limited to within one LBT band.

[0048] PUCCH resources on the NR-U system can be configured as interleaved or non-interleaved. Non-interleaved PUCCH resources are configured as defined in the original R15 standard, meaning that if a PUCCH resource occupies multiple consecutive frequency domain resource blocks (RBs), then these RBs are consecutive in the frequency domain. Interleaved PUCCH resource allocation involves dividing a 20MHz LBT band into 10 (for 15kHz subcarriers) or 5 (for 30kHz subcarriers) interleaved blocks. For example, with 15kHz subcarriers, a 20MHz LBT band contains 106 RBs with indices 0-105, divided into 10 interleaved blocks with indices 0-9, each interleaved containing 10 or 11 RBs. For example: Intertwined 0 includes RB 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 (11 in total), and intertwined 6 includes RB 6, 16, 26, 36, 46, 56, 66, 76, 86, 96 (10 in total).

[0049] 3GPP has defined three major directions for 5G application scenarios: Enhanced Mobile Broadband (eMBB), Massive Machine Type of Communication (mMTC), and Ultra Reliable & Low Latency Communication (URLLC). Among them, URLLC requires high reliability and low latency, while eMBB requires a larger data transmission rate.

[0050] For the Physical Downlink Shared Channel (PDSCH) scheduled by the base station, the UE needs to send back HARQ-ACK, and the HARQ-ACK information will be transmitted using PUCCH channel resources.

[0051] For URLLC services, timely and accurate transmission of HARQ-ACK information is crucial to reduce the likelihood of unsuccessful HARQ-ACK transmission of the PUCCH channel due to unsuccessful UE channel listening. For the PUCCH channel used to transmit HARQ-ACK information for URLLC PDSCH, if the UE fails to listen to the channel on the LBT band to which the PUCCH channel belongs, the UE will be unable to transmit PUCCH channel information, meaning the base station will not be able to obtain HARQ-ACK feedback in a timely manner.

[0052] In the NR-U standard, there is a mechanism for repeatedly transmitting HARQ-ACK information. For a HARQ-ACK codebook composed of HARQ-ACK information corresponding to one or more PDSCHs, if the HARQ-ACK codebook fails to be transmitted, it can be retransmitted during the subsequent HARQ-ACK feedback opportunity. However, this retransmission mechanism requires waiting for a certain period of time, which does not meet the low latency requirements of URLLC services.

[0053] Figure 2 This is a flowchart of a communication method provided in an exemplary embodiment of this disclosure, in which the method is applied to, for example... Figure 1 The following explanation uses the terminal shown as an example. Figure 2 As shown, the method includes:

[0054] Step 201: Determine the first LBT band from at least two listen-before-speak LBT bands where channel monitoring was successful.

[0055] In some embodiments, the at least two LBT bands include any one of the following:

[0056] First, the terminal is configured with a first physical uplink control channel (PUCCH) for sending uplink communication messages, and the first physical uplink control channel (PUCCH) is configured with at least two corresponding LBT frequency bands, and channel listening is performed on the at least two LBT frequency bands.

[0057] In some embodiments, for at least two LBT frequency bands corresponding to the first physical uplink control channel PUCCH, the channel parameters of the first physical uplink control channel PUCCH are the same, wherein the channel parameters include at least one of relative time-frequency resource location, channel format, maximum code rate, and cyclic shift code in different LBT frequency bands. That is, for at least two LBT frequency bands, the relative time-frequency resource location, channel format, maximum code rate, and cyclic shift code of the first PUCCH are the same.

[0058] In some embodiments, in response to the same relative time-frequency resource location of the first PUCCH, the first LBT band where channel listening is successful is determined from at least two LBT bands corresponding to the first physical uplink control channel PUCCH.

[0059] In some embodiments, the first PUCCH channel may include different parameter configurations for the at least two LBT bands. Illustratively, the relative frequency domain resource positions of the first PUCCH are different for the at least two LBT bands. For example, the frequency domain resource position of the first PUCCH channel in the first LBT band is interleaved (3), while its frequency domain resource position in the second LBT band is interleaved (5). In some embodiments, the channel format, maximum code rate, or cyclic shift code of the first PUCCH channel may also be different.

[0060] Second, the terminal is configured with a second physical uplink control channel (PUCCH) for sending uplink communication messages. The second physical uplink control channel (PUCCH) is configured to correspond to the second LBT frequency band, and channel listening is performed on at least two LBT frequency bands including the second LBT frequency band.

[0061] If the second LBT band corresponding to the second physical uplink control channel PUCCH fails to be monitored, the first LBT band that was successfully monitored is determined from other LBT bands; if the second LBT band corresponding to the second physical uplink control channel PUCCH is successfully monitored, then there is no need to determine the first LBT band, and uplink communication messages are transmitted directly through the second physical uplink control channel PUCCH.

[0062] The above-mentioned at least two LBT bands are the LBT bands included in the BWP configured for the terminal, and each LBT band corresponds to an index.

[0063] Step 202: Send an uplink communication message on the first physical uplink control channel (PUCCH) in the first LBT frequency band.

[0064] For the two methods of determining the LBT frequency band mentioned above, the transmission method of uplink communication messages will be explained respectively:

[0065] First, when the terminal is configured with a first physical uplink control channel (PUCCH) for sending uplink communication messages, and the first physical uplink control channel (PUCCH) is configured with at least two corresponding LBT frequency bands, after determining the first LBT frequency band from the at least two LBT frequency bands where the channel has been successfully monitored, the uplink communication message is sent on the first physical uplink control channel (PUCCH) of the first LBT frequency band. Since the first physical uplink control channel (PUCCH) has the same relative time-frequency resource position relative to the at least two LBT frequency bands, that is, the physical resource position on each LBT frequency band is fixed, after determining the first LBT frequency band, the uplink communication message is sent on the corresponding physical resource position of the first LBT frequency band.

[0066] As an illustration, a Physical Uplink Control Channel (PUCCH) resource is configured for the terminal, and multiple LBT bands are configured for this PUCCH resource, such as three LBT bands: LBT band 1, LBT band 2, and LBT band 3. When the terminal uses the PUCCH to send HARQ-ACK information, channel listening is performed on these three LBT bands. When channel listening is successful on an LBT band, HARQ-ACK information is sent on the PUCCH channel of the LBT band where channel listening was successful.

[0067] Uplink communication messages can be implemented as HARQ-ACK messages. In some embodiments, uplink communication messages are high-priority HARQ-ACK messages.

[0068] In some embodiments, the uplink communication message can also be implemented as an uplink scheduling request (SR), that is, multiple LBT bands are configured for the semi-statically configured PUCCH resources used for transmitting SR; or, multiple LBT bands are configured for the semi-statically configured Physical Uplink Shared Channel (PUSCH) resources used for transmitting uplink data.

[0069] This application also discloses a communication device, wherein the communication device is configured with a first physical uplink control channel (PUCCH) for transmitting uplink communication messages, wherein the first physical uplink control channel (PUCCH) is configured with at least two corresponding LBT frequency bands.

[0070] In an optional embodiment, the first physical uplink control channel (PUCCH) has the same relative time-frequency resource location relative to at least two LBT frequency bands. Thus, since the physical resource location in each LBT frequency band is fixed, once the first LBT frequency band is determined, uplink communication messages can be transmitted at the corresponding physical resource location within the first LBT frequency band.

[0071] Uplink communication messages can be implemented as HARQ-ACK messages. In some embodiments, uplink communication messages are high-priority HARQ-ACK messages.

[0072] In some embodiments, the uplink communication message can also be implemented as an uplink scheduling request (SR), that is, multiple LBT bands are configured for the semi-statically configured PUCCH resources used for transmitting SR; or, multiple LBT bands are configured for the semi-statically configured Physical Uplink Shared Channel (PUSCH) resources used for transmitting uplink data.

[0073] Second, the terminal is configured with a second physical uplink control channel (PUCCH) for sending uplink communication messages, and the second PUCCH is configured with a second LBT band. If channel listening to the second LBT band fails, the first LBT band where channel listening was successful is determined from the other LBT bands of the BWP. Channel listening to multiple LBT bands is performed simultaneously. Since the base station may not have configured PUCCH resources for the terminal on the first LBT band, or even if multiple PUCCH resources are configured, the PUCCH resources may not meet the latency requirements in terms of time. In some embodiments, the first relative time-frequency resource position of the first PUCCH for sending uplink communication messages relative to the first LBT band is the same as the second relative time-frequency resource position of the second PUCCH relative to the second LBT band; that is, the first PUCCH and the second PUCCH differ only in their corresponding LBT band indices.

[0074] Indicatively, the uplink BWP configured for the terminal includes two LBT frequency bands: LBT bandwidth 0 and LBT bandwidth 1. The physical resource location configured by the base station for the terminal to send HARQ-ACK information is PUCCH channel 1 on LBT bandwidth 0. PUCCH channel 1 occupies symbol 13 / 14 in time-frequency resources and has frequency domain resource bits interleaved by 3. Before sending HARQ-ACK information on PUCCH channel 1, the terminal needs to perform channel listening. If channel listening fails on LBT bandwidth 0 but succeeds on LBT bandwidth 1, the terminal selects PUCCH channel 2 on LBT bandwidth 1 to send HARQ-ACK information. PUCCH channel 2 is a channel on LBT bandwidth 1, and its time domain resource location is the same as that of PUCCH channel 1 on LBT bandwidth 0, occupying symbol 13 / 14 in time-frequency resources. Furthermore, the frequency domain resource location occupied by PUCCH channel 2 on LBT bandwidth 1 is also the same as that of PUCCH channel 1 on LBT bandwidth 0, i.e., interleaved by 3.

[0075] Based on the above examples, it can be understood that the frequency domain resource location of the second uplink control channel PUCCH on the second LBT frequency band is shifted to the first LBT frequency band to obtain the first uplink control channel PUCCH.

[0076] In some embodiments, the channel parameters of the first physical uplink control channel (PUCCH) are consistent with the channel parameters of the second uplink control channel (PUCCH), wherein the channel parameters include at least one of channel format, maximum code rate, and cyclic shift code.

[0077] Uplink communication messages can be implemented as HARQ-ACK messages. In some embodiments, uplink communication messages are high-priority HARQ-ACK messages.

[0078] In some embodiments, when at least two LBT bands include n LBT bands with successfully monitored channels, where n is a positive integer, the first LBT band is determined using any of the following methods:

[0079] First, in response to at least two LBT bands including n channels that have been successfully monitored, the first LBT band is selected according to the index number of the LBT bands.

[0080] In some embodiments, the first LBT band is selected sequentially according to the index numbers of the n LBT bands sorted from smallest to largest, such as selecting the one with the smallest index number among the n LBT bands as the first LBT band.

[0081] Second, in response to at least two LBT bands including n channel successfully monitored, the first LBT band with the lowest channel interference level is selected.

[0082] Third, in response to at least two LBT bands including the LBT bands where n channels have been successfully monitored, arbitrarily select one LBT band as the first LBT band.

[0083] In summary, the communication method provided in this disclosure performs channel monitoring on at least two LBT frequency bands, thereby determining the first LBT frequency band from the at least two LBT frequency bands where channel monitoring is successful, and sending an uplink communication message on the first physical uplink control channel (PUCCH) of the first LBT frequency band. As a result, the high-priority HARQ-ACK message can occupy the channel with a higher probability during transmission, thereby ensuring low latency and high reliability transmission of PUCCH channel information.

[0084] In one optional embodiment, the terminal performs channel listening on at least two LBT bands and selects the LBT band where the channel listening is successful to send uplink communication messages; while the base station listens for uplink communication messages on at least two LBT bands. Figure 3 This is a flowchart of a communication method provided in another exemplary embodiment of this disclosure, in which the method is applied to, for example... Figure 1 The following explanation uses the communication system shown as an example. Figure 3 As shown, the method includes:

[0085] Step 301: The terminal determines the first LBT band from at least two listen-before-speak LBT bands where channel listening was successful.

[0086] In some embodiments, the at least two LBT bands include any one of the following:

[0087] First, the terminal is configured with a first physical uplink control channel (PUCCH) for sending uplink communication messages, and the first physical uplink control channel (PUCCH) is configured with at least two corresponding LBT frequency bands, and channel listening is performed on the at least two LBT frequency bands.

[0088] Second, the terminal is configured with a second physical uplink control channel (PUCCH) for sending uplink communication messages. The second physical uplink control channel (PUCCH) is configured to correspond to the second LBT frequency band, and channel listening is performed on at least two LBT frequency bands including the second LBT frequency band.

[0089] Step 302: The terminal sends an uplink communication message on the first physical uplink control channel (PUCCH) in the first LBT frequency band.

[0090] For the two methods of determining the LBT frequency band mentioned above, the transmission method of uplink communication messages will be explained respectively:

[0091] First, when the terminal is configured with a first physical uplink control channel (PUCCH) for sending uplink communication messages, and the first physical uplink control channel (PUCCH) is configured with at least two corresponding LBT frequency bands, after determining the first LBT frequency band from the at least two LBT frequency bands where the channel has been successfully monitored, the uplink communication message is sent on the first physical uplink control channel (PUCCH) of the first LBT frequency band.

[0092] Second, the terminal is configured with a second physical uplink control channel (PUCCH) for sending uplink communication messages, and the second physical uplink control channel (PUCCH) is configured with a second LBT frequency band. If channel monitoring of the second LBT frequency band fails, the first LBT frequency band that successfully monitors the channel is determined from the other LBT frequency bands of the BWP. Channel monitoring of multiple LBT frequency bands is performed simultaneously.

[0093] Step 303: The access network device listens for uplink communication messages sent by the terminal on the first physical uplink control channel of at least two LBT bands.

[0094] In some embodiments, the terminal is configured with an uplink BWP, which includes at least two LBT frequency bands, and the access network device listens for uplink communication messages on the first physical uplink control channel of the at least two LBT frequency bands.

[0095] Optionally, the access network device may listen to uplink communication messages in any of the following ways:

[0096] First, when the access network device configures a first physical uplink control channel (PUCCH) for the terminal to send uplink communication messages, and the first physical uplink control channel (PUCCH) is configured with at least two corresponding LBT frequency bands, the access network device listens for uplink communication messages from the first PUCCH channel of the at least two LBT frequency bands.

[0097] In some embodiments, uplink communication messages are listened to from the first PUCCH channel in ascending order of LBT frequency band index.

[0098] Second, the access network equipment configures a second physical uplink control channel (PUCCH) for the terminal to send uplink communication messages, and the second physical uplink control channel (PUCCH) is configured with a second LBT frequency band.

[0099] In some embodiments, the access network device first listens to the second physical uplink control channel (PUCCH) of the second LBT band. When the second PUCCH does not contain uplink communication messages sent by the terminal, it listens to other LBT bands and listens for uplink communication messages from the first PUCCH of the first LBT band in the other LBT bands. The first LBT band is the LBT band where the channel listening was successful when the terminal sent the uplink communication message. In some embodiments, the first relative time-frequency resource position of the first PUCCH relative to the first LBT band is the same as the second relative time-frequency resource position of the second PUCCH relative to the second LBT band. That is, the first PUCCH and the second PUCCH differ only in their corresponding LBT band indices.

[0100] Based on the above examples, it can be understood that the frequency domain resource location of the second uplink control channel PUCCH on the second LBT frequency band is shifted to the first LBT frequency band to obtain the first uplink control channel PUCCH.

[0101] In some embodiments, the channel parameters of the first physical uplink control channel (PUCCH) are consistent with the channel parameters of the second uplink control channel (PUCCH), wherein the channel parameters include at least one of channel format, maximum code rate, and cyclic shift code.

[0102] In some embodiments, the access network device listens for uplink communication messages from the PUCCH channel in ascending order of LBT frequency band index.

[0103] In summary, the communication method provided in this disclosure performs channel monitoring on at least two LBT frequency bands, thereby determining the first LBT frequency band from the at least two LBT frequency bands where channel monitoring is successful, and sending an uplink communication message on the first physical uplink control channel (PUCCH) of the first LBT frequency band. As a result, the high-priority HARQ-ACK message can occupy the channel with a higher probability during transmission, thereby ensuring low latency and high reliability transmission of PUCCH channel information.

[0104] This application also discloses a resource scheduling method, such as Figure 4 As shown, taking the application of this method in access network equipment as an example, the method includes:

[0105] Step 401: Configure a first physical uplink control channel (PUCCH) for the terminal to send uplink communication messages. The first physical uplink control channel (PUCCH) is configured with at least two LBT frequency bands.

[0106] In an optional embodiment, the method may include configuring the same channel parameters for the first physical uplink control channel (PUCCH) for the at least two LBT frequency bands.

[0107] In an optional embodiment, the channel parameters include at least one of relative time-frequency resource location, channel format, maximum code rate, and cyclic shift code.

[0108] In an optional embodiment, the method may include configuring different channel parameters for the first physical uplink control channel (PUCCH) for the at least two LBT frequency bands.

[0109] The above technical solutions can optimize terminal resource allocation and enable flexible scheduling of system resources to ensure stable and efficient PUCCH channel transmission.

[0110] This application also discloses a resource scheduling method, such as Figure 5 As shown, taking the application of this method in access network equipment as an example, the method includes:

[0111] Step 501: Configure a second physical uplink control channel (PUCCH) for the terminal to send uplink communication messages. The second physical uplink control channel (PUCCH) is configured to correspond to the second LBT frequency band.

[0112] In an optional embodiment, the method may include: receiving the uplink communication message from the first physical uplink control channel (PUCCH) of the first LBT band in another LBT band in response to the absence of an uplink communication message on the second physical uplink control channel (PUCCH).

[0113] In an optional embodiment, the first relative time-frequency resource position of the first physical uplink control channel PUCCH relative to the first LBT band is the same as the second relative time-frequency resource position of the second physical uplink control channel PUCCH relative to the second LBT band.

[0114] In an optional embodiment, the channel parameters of the first physical uplink control channel (PUCCH) are consistent with the channel parameters of the second physical uplink control channel (PUCCH), wherein the channel parameters include at least one of channel format, maximum code rate, and cyclic shift code.

[0115] In one alternative embodiment, the at least two LBT bands are LBT bands included in the bandwidth portion (BWP) configured for the terminal.

[0116] Similarly, the above technical solutions can optimize terminal resource allocation and enable flexible scheduling of system resources to ensure stable and efficient PUCCH channel transmission.

[0117] Figure 6 This is a structural block diagram of a communication device provided in an exemplary embodiment of this disclosure, such as... Figure 6 As shown, taking the application of this device in a terminal as an example, the device includes:

[0118] Processing module 610 is used to determine the first LBT band from at least two listen-before-speak LBT bands where channel listening was successful;

[0119] The transmitting module 620 is used to transmit uplink communication messages on the first physical uplink control channel (PUCCH) in the first LBT frequency band.

[0120] In an optional embodiment, the terminal is configured with a first physical uplink control channel (PUCCH) for transmitting the uplink communication messages, and the first physical uplink control channel (PUCCH) is configured with the at least two LBT frequency bands.

[0121] In an optional embodiment, the channel parameters of the first physical uplink control channel (PUCCH) are the same for the at least two LBT bands.

[0122] In an optional embodiment, the channel parameters include at least one of the following: relative time-frequency resource location in different LBT bands, channel format, maximum code rate, and cyclic shift code.

[0123] In an optional embodiment, the parameter configuration of the first physical uplink control channel (PUCCH) differs for the at least two LBT bands.

[0124] In an optional embodiment, the terminal is configured with a second physical uplink control channel (PUCCH) for transmitting the uplink communication messages, and the second physical uplink control channel (PUCCH) is configured to correspond to a second LBT frequency band;

[0125] The processing module 610 is further configured to, in response to a failure of channel monitoring on the second LBT band, determine the first LBT band in other LBT bands where channel monitoring was successful.

[0126] In an optional embodiment, the transmitting module 620 is further configured to transmit the uplink communication message on the second physical uplink control channel PUCCH in response to successful channel listening in the second LBT band.

[0127] In an optional embodiment, the first relative time-frequency resource position of the first physical uplink control channel PUCCH relative to the first LBT band is the same as the second relative time-frequency resource position of the second physical uplink control channel PUCCH relative to the second LBT band.

[0128] In an optional embodiment, the channel parameters of the first physical uplink control channel (PUCCH) are consistent with the channel parameters of the second physical uplink control channel (PUCCH).

[0129] The channel parameters include at least one of the following: channel format, maximum code rate, and cyclic shift code.

[0130] In an optional embodiment, the at least two LBT bands are LBT bands included in the bandwidth portion (BWP) configured for the terminal.

[0131] In an optional embodiment, the processing module 610 is further configured to, in response to an LBT band including n channel-successfully monitored LBT bands among the at least two LBT bands, select the first LBT band according to the index number of the LBT bands, where n is a positive integer.

[0132] In an optional embodiment, the first LBT frequency band is selected sequentially according to the index numbers of the LBT frequency bands, sorted from smallest to largest.

[0133] In an optional embodiment, the processing module 610 is further configured to, in response to the at least two LBT bands including n LBT bands that have successfully monitored the channels, select the first LBT band with the lowest channel interference level, where n is a positive integer.

[0134] Figure 7 This is a structural block diagram of a communication device provided in another exemplary embodiment of this disclosure. Taking the application of this device in an access network device as an example, such as... Figure 7 As shown, the device includes:

[0135] The receiving module 710 is used to listen for uplink communication messages sent by the terminal on the first physical uplink control channel (PUCCH) of at least two READ-READ LBT bands.

[0136] In an optional embodiment, the apparatus further includes:

[0137] The processing module 720 is configured to configure the terminal to send the uplink communication message via the first physical uplink control channel PUCCH, wherein the first physical uplink control channel PUCCH is configured with the at least two LBT frequency bands.

[0138] In an optional embodiment, the processing module 720 is further configured to configure the same channel parameters for the first physical uplink control channel PUCCH for the at least two LBT frequency bands.

[0139] In an optional embodiment, the channel parameters include at least one of time-frequency resource location relative to different LBT frequency bands, channel format, maximum code rate, and cyclic shift code.

[0140] In an optional embodiment, the processing module 720 is further configured to configure different channel parameters for the first physical uplink control channel PUCCH for the at least two LBT frequency bands.

[0141] In an optional embodiment, the apparatus further includes:

[0142] Processing module 720 is configured to configure a second physical uplink control channel (PUCCH) for the terminal to send the uplink communication message, wherein the second physical uplink control channel (PUCCH) is configured to correspond to the second LBT frequency band;

[0143] The receiving module 710 is further configured to receive the uplink communication message from the first physical uplink control channel PUCCH of the first LBT band in other LBT bands in response to the fact that the second physical uplink control channel PUCCH does not include the uplink communication message.

[0144] In an optional embodiment, the first relative time-frequency resource position of the first physical uplink control channel PUCCH relative to the first LBT band is the same as the second relative time-frequency resource position of the second physical uplink control channel PUCCH relative to the second LBT band.

[0145] In an optional embodiment, the channel parameters of the first physical uplink control channel (PUCCH) are consistent with the channel parameters of the second physical uplink control channel (PUCCH).

[0146] The channel parameters include at least one of the following: channel format, maximum code rate, and cyclic shift code.

[0147] In an optional embodiment, the at least two LBT bands are LBT bands included in the bandwidth portion (BWP) configured for the terminal.

[0148] In summary, the communication device provided in this embodiment of the present disclosure, by performing channel monitoring on at least two LBT frequency bands, determines the first LBT frequency band from which the channel monitoring is successful, and sends an uplink communication message on the first physical uplink control channel (PUCCH) of the first LBT frequency band. As a result, the high-priority HARQ-ACK message can occupy the channel with a higher probability during transmission, thereby ensuring low latency and high reliability transmission of PUCCH channel information.

[0149] This application also discloses a resource scheduling device, such as Figure 8 As shown, the device includes:

[0150] The processing module 810 is configured to configure a first physical uplink control channel (PUCCH) for the terminal to send uplink communication messages. The first physical uplink control channel (PUCCH) is configured with at least two LBT frequency bands.

[0151] In an optional embodiment, the processing module 810 is further configured to configure the same channel parameters for the first physical uplink control channel PUCCH for the at least two LBT frequency bands.

[0152] In an optional embodiment, the channel parameters include at least one of relative time-frequency resource location, channel format, maximum code rate, and cyclic shift code.

[0153] In an optional embodiment, the processing module 810 is further configured to configure different channel parameters for the first physical uplink control channel PUCCH for the at least two LBT frequency bands.

[0154] The above technical solutions can optimize terminal resource allocation and enable flexible scheduling of system resources.

[0155] This application also discloses a resource scheduling device, such as Figure 9 As shown, the device includes:

[0156] The processing module 910 is used to configure a second physical uplink control channel (PUCCH) for the terminal to send uplink communication messages. The second physical uplink control channel (PUCCH) is configured to correspond to the second LBT frequency band.

[0157] In an optional embodiment, the apparatus further includes:

[0158] The receiving module 920 is configured to receive the uplink communication message from the first physical uplink control channel PUCCH of the first LBT band in other LBT bands in response to the absence of uplink communication messages on the second physical uplink control channel PUCCH.

[0159] In an optional embodiment, the first relative time-frequency resource position of the first physical uplink control channel PUCCH relative to the first LBT band is the same as the second relative time-frequency resource position of the second physical uplink control channel PUCCH relative to the second LBT band.

[0160] In an optional embodiment, the channel parameters of the first physical uplink control channel (PUCCH) are consistent with the channel parameters of the second physical uplink control channel (PUCCH), wherein the channel parameters include at least one of channel format, maximum code rate, and cyclic shift code.

[0161] In one alternative embodiment, the at least two LBT bands are LBT bands included in the bandwidth portion (BWP) configured for the terminal.

[0162] Figure 10 The diagram shows a schematic of a terminal provided in an exemplary embodiment of the present disclosure. The terminal includes: a processor 1001, a receiver 1002, a transmitter 1003, a memory 1004, and a bus 1005.

[0163] The processor 1001 includes one or more processing cores. The processor 1001 executes various functional applications and information processing by running software programs and modules.

[0164] The receiver 1002 and the transmitter 1003 can be implemented as a communication component, which can be a communication chip.

[0165] The memory 1004 is connected to the processor 1001 via the bus 1005.

[0166] The memory 1004 can be used to store at least one instruction, and the processor 1001 can execute the at least one instruction to implement the various steps in the above method embodiments.

[0167] Furthermore, the memory 1004 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static random access memory (SRAM), read-only memory (ROM), magnetic storage, flash memory, and programmable read-only memory (PROM).

[0168] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory including instructions, which can be executed by a processor of a terminal to complete the method executed by the terminal side in the above-described communication method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0169] A non-transitory computer-readable storage medium, wherein when instructions in the non-transitory computer storage medium are executed by a terminal's processor, the terminal is able to execute the aforementioned communication method.

[0170] Figure 11 This is a block diagram illustrating an access network device 1100 according to an exemplary embodiment. The access network device 1100 may be a base station.

[0171] The access network device 1100 may include a processor 1101, a receiver 1102, a transmitter 1103, and a memory 1104. The receiver 1102, transmitter 1103, and memory 1104 are respectively connected to the processor 1101 via a bus.

[0172] The processor 1101 includes one or more processing cores. The processor 1101 executes the methods performed by the access network device in the communication method provided in this embodiment by running software programs and modules. The memory 1104 can be used to store software programs and modules. Specifically, the memory 1104 can store an operating system 1141 and at least one application module 1142 required for a function. The receiver 1102 is used to receive communication data sent by other devices, and the transmitter 1103 is used to send communication data to other devices.

[0173] An exemplary embodiment of this disclosure also provides a communication system, the system comprising: a terminal and an access network device;

[0174] The terminal includes, for example: Figure 6 The communication device provided in the illustrated embodiment;

[0175] The access network equipment includes, for example, Figure 7 The communication apparatus provided in the illustrated embodiment; or, the access network equipment includes, for example, the communication device .... Figure 8 The resource scheduling device provided in the illustrated embodiment; or, the access network device includes, for example, the resource scheduling device provided in the illustrated embodiment; or, the resource scheduling device provided in the illustrated embodiment includes, for example, the resource scheduling device provided in the illustrated embodiment. Figure 9 The resource scheduling device provided in the illustrated embodiment.

[0176] An exemplary embodiment of this disclosure also provides a communication system, the communication system comprising: a terminal and an access network device;

[0177] The terminal includes, for example: Figure 10 The terminal provided in the illustrated embodiment;

[0178] The access network equipment includes, for example, Figure 11 The access network device provided in the illustrated embodiment.

[0179] An exemplary embodiment of this disclosure also provides a computer-readable storage medium storing at least one instruction, at least one program, code set, or instruction set, wherein the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by the processor to implement the steps performed by a terminal or access network device in the communication methods provided in the above-described method embodiments.

[0180] It should be understood that "multiple" as used in this article refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0181] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0182] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A communication device, characterized in that, The device includes: Circuit structure used to determine the physical uplink control channel (PUCCH) resources; The transmitter sends a response signal on the PUCCH resource based on the result of the Listen-Before-Speak (LBT) mechanism. The PUCCH resources are configured only in either the first frequency band or the second frequency band.

2. The communication device according to claim 1, characterized in that, The LBT mechanism is executed in either the first frequency band or the second frequency band.

3. The communication device according to claim 1, characterized in that, When the LBT mechanism executed in the first frequency band is successful, the response signal is sent in the first frequency band.

4. The communication device according to claim 2, characterized in that, Another PUCCH resource is configured on the third frequency band, the LBT mechanism is executed in the third frequency band, and the third frequency band is different from the first frequency band and the second frequency band.

5. The communication device according to claim 4, characterized in that, The PUCCH resource is confined to the first frequency band, and the other PUCCH resource is confined to the third frequency band.

6. A communication method, characterized in that, The communication method includes: Determine the Physical Uplink Control Channel (PUCCH) resources; Based on the result of the Listen-Before-Speak (LBT) mechanism, a response signal is sent on the PUCCH resource; The PUCCH resources are configured only in either the first frequency band or the second frequency band.

7. The communication method according to claim 6, characterized in that, The LBT mechanism is executed in either the first frequency band or the second frequency band.

8. The communication method according to claim 6, characterized in that, When the LBT mechanism executed in the first frequency band is successful, the response signal is sent in the first frequency band.

9. The communication method according to claim 7, characterized in that, Another PUCCH resource is configured on the third frequency band, the LBT mechanism is executed in the third frequency band, and the third frequency band is different from the first frequency band and the second frequency band.

10. The communication method according to claim 9, characterized in that, The PUCCH resource is confined to the first frequency band, and the other PUCCH resource is confined to the third frequency band.

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