Communication method, device, equipment and readable storage medium

Abstract

The present disclosure provides a communication method, apparatus, device, and readable storage medium, relating to the field of communications. The method includes: determining a first LBT band with successful channel monitoring from at least two listen-before-talk (LBT) bands; and sending an uplink communication message on a first physical uplink control channel (PUCCH) on the first LBT band. By performing channel monitoring on at least two LBT bands, the first LBT band with successful channel monitoring is determined from the at least two LBT bands, and an uplink communication message is sent on the first physical uplink control channel (PUCCH) of the first LBT band. This allows high-priority HARQ-ACK messages to occupy the channel with a higher probability during transmission, thereby ensuring low latency and high reliability transmission of PUCCH channel information.

Description

Technical Field

[0001] The present disclosure relates to the field of communications, and in particular to a communication method, apparatus, device, and readable storage medium. Background Art

[0002] The 3rd Generation Partnership Project (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).

[0003] When a terminal sends a hybrid automatic repeat request HARQ-ACK information on an unlicensed frequency band, it first needs to perform channel monitoring on the Listen Before Talk (LBT) band to which the Physical Uplink Control Channel (PUCCH) belongs. If the channel monitoring fails, the terminal cannot send the HARQ-ACK information, which does not meet the low latency requirements of the URLLC service. Summary of the Invention

[0004] The embodiments of the present application provide a communication method, apparatus, device, and readable storage medium that can reliably and low-latency transmit HARQ-ACK information in an unlicensed frequency band. The technical solution is as follows.

[0005] The technical solution is as follows:

[0006] In one aspect, a communication method is provided, which is applied to a terminal, and the method includes:

[0007] Determining a first LBT frequency band in which channel monitoring is successful from at least two listen-before-talk (LBT) frequency bands;

[0008] An uplink communication message is sent on a first physical uplink control channel PUCCH on the first LBT frequency band.

[0009] In another aspect, a communication method is provided, applied to an access network device, the method comprising:

[0010] The uplink communication message sent by the terminal is monitored on the first physical uplink control channel PUCCH of at least two listen-before-talk LBT frequency bands.

[0011] In another aspect, a communication device is provided, applied in a terminal, the device comprising:

[0012] A processing module, configured to determine a first listen-before-talk (LBT) frequency band in which channel monitoring is successful from at least two LBT frequency bands;

[0013] A sending module is used to send uplink communication messages on the first physical uplink control channel PUCCH on the first LBT frequency band.

[0014] In another aspect, a communication device is provided, which is applied to an access network device, and the device includes:

[0015] The receiving module is used to monitor the uplink communication message sent by the terminal on the first physical uplink control channel PUCCH of at least two listen-before-talk LBT frequency bands.

[0016] In another aspect, 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 above-mentioned embodiment of the present application.

[0020] In another aspect, 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 above-mentioned embodiment of the present application.

[0024] On the other hand, a computer-readable storage medium is provided, which stores at least one instruction, at least one program, code set or instruction set, and the above 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 above-mentioned embodiment of the present application.

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

[0026] By performing channel monitoring on at least two LBT frequency bands, the first LBT frequency band where the channel monitoring is successful is determined from the at least two LBT frequency bands, and an uplink communication message is sent on the first physical uplink control channel PUCCH of the first LBT frequency band. In this way, 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 is a block diagram of a communication system provided by an exemplary embodiment of the present disclosure;

[0029] Figure 2 is a flow chart of a communication method provided by an exemplary embodiment of the present disclosure;

[0030] Figure 3 is a flow chart of a communication method provided by another exemplary embodiment of the present disclosure;

[0031] Figure 4 is a flow chart of a resource scheduling method provided by an exemplary embodiment of the present disclosure;

[0032] Figure 5 is a flowchart of a resource scheduling method provided by another exemplary embodiment of the present disclosure;

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

[0034] Figure 7 is a structural block diagram of a communication device provided by another exemplary embodiment of the present disclosure;

[0035] Figure 8 is a structural block diagram of a resource scheduling device provided by an exemplary embodiment of the present disclosure;

[0036] Figure 9 is a structural block diagram of a resource scheduling device provided by another exemplary embodiment of the present disclosure;

[0037] Figure 10 is a block diagram of a terminal provided by an exemplary embodiment of the present disclosure;

[0038] Figure 11It is a block diagram of an access network device provided by an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0039] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0040] Figure 1 A block diagram of a communication system provided by an exemplary 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. The core network devices 110 include access and mobility management functions (AMF), session management functions (SMF), and user plane management functions (UPF). Among them, AMF is used to control terminal access rights and handover functions, and SMF is used to provide server continuity and uninterrupted user experience of the server, such as changes in IP addresses and anchor points.

[0042] The access network 12 includes several access network devices 120. The access network device 120 may be a base station, which is a device deployed in the access network to provide wireless communication functions for terminals. The base station may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different wireless access technologies, the names of devices with base station functions may be different. For example, in the Long Term Evolution (LTE) system, it is called eNodeB or eNB; in the 5G New Radio (NR) system, it is called gNode B or gNB. With the evolution of communication technology, the name "base station" may be described and may change. For the convenience of the embodiments of the present disclosure, the above-mentioned devices that provide wireless communication functions for terminals are collectively referred to as access network devices.

[0043] Terminal 13 may include various handheld devices with wireless communication capabilities, in-vehicle 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), and terminal devices. For ease of description, the above-mentioned devices are collectively referred to as terminals. Access network device 120 and terminal 13 communicate with each other via some air interface technology, such as the Uu interface.

[0044] Optionally, in the process of wireless communication between the terminal 13 and the access network device 120, wireless communication can be carried out through a licensed frequency band or an unlicensed frequency band. Optionally, in the embodiment of the present disclosure, wireless communication between the terminal 13 and the access network device 120 through an unlicensed frequency band is used as an example for description.

[0045] In the NR system, uplink control information (UCI) is control information sent by the UE to the base station on the physical uplink control channel (PUCCH) or the physical uplink shared channel (PUSCH). UCI includes the Hybrid Automatic Repeat request Acknowledge character (HARQ-ACK) of the downlink data, which is used to feedback to the base station whether the received downlink data has been correctly received, including an Acknowledgement character (ACK) and a Negative Acknowledgement (NACK). The Acknowledgement character indicates that the UE has correctly received the downlink data, and the NACK character indicates that the UE has failed to receive the downlink data.

[0046] In the standard discussion and design of the R16 NR unlicensed spectrum (NR-Unlicensed, NR-U), the transmitter generally needs to monitor the channel before sending a communication message. Only after the channel monitoring is successful, that is, after it is determined that the monitored channel is not occupied by other transmitters, can the transmitter send a communication message on the channel. This is the Listen Before Talk (LBT) channel occupation mechanism.

[0047] The transmitter performs channel monitoring in units of one LBT band (bandwidth). One LBT band is 20 MHz. The uplink resources configured by the base station for the UE, that is, the uplink bandwidth part (BandWith Part, BWP), can include one or more LBT bands. In unlicensed bands, when the base station configures PUCCH resources for the UE, it is necessary to configure the LBT band location where the PUCCH resources are located, such as configuring the index value of the LBT band where the PUCCH resources are located, and the PUCCH resources are confined to one LBT band.

[0048] The PUCCH resources on the NR-U system can be configured as interleaved or non-interleaved. Non-interleaved PUCCH resources are the PUCCH resource configuration method defined in the original R15 standard, that is, if the PUCCH resources occupy multiple continuous frequency domain resource blocks (RBs) in the frequency domain, then the multiple RBs are continuous in the frequency domain. The interleaved PUCCH resource allocation method is to divide a 20MHz LBT band into 10 (for 15KHz subcarriers) or 5 (for 30KHz subcarriers) interlaces. For example, at 15KHz subcarriers, the 20MHz LBT band contains 106 RBs, indexed from 0 to 105, divided into 10 interlaces, indexed from 0 to 9, and each interlace contains 10 or 11 RBs. For example, interlace 0 includes RBs 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, and 100 (11 in total), and interlace 6 includes RBs 6, 16, 26, 36, 46, 56, 66, 76, 86, and 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). URLLC requires high reliability and low latency, while eMBB requires a higher data transmission rate.

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

[0051] For URLLC services, HARQ-ACK information needs to be transmitted in a timely and accurate manner to reduce the situation where HARQ-ACK information on the PUCCH channel is not sent successfully due to unsuccessful UE channel monitoring. For the PUCCH channel used to transmit HARQ-ACK information of URLLC PDSCH, if the UE fails to perform channel monitoring on the LBT band to which the PUCCH channel belongs, the UE will not be able to send the PUCCH channel information, that is, 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 consisting of HARQ-ACK information corresponding to one or more PDSCHs, when the HARQ-ACK codebook fails to be sent, it can be repeated in the HARQ-ACK feedback opportunity at a later time. However, this repeated transmission mechanism requires waiting for a certain period of time, which does not meet the low latency requirements of URLLC services.

[0053] Figure 2 is a flow chart of a communication method provided by an exemplary embodiment of the present disclosure, wherein the method is applied to Figure 1 The terminal shown in the figure is used as an example to illustrate. Figure 2 As shown, the method includes:

[0054] Step 201: Determine a first listen-before-talk (LBT) frequency band in which channel monitoring is successful from at least two LBT frequency bands.

[0055] In some embodiments, the at least two LBT frequency 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 corresponding at least two LBT frequency bands, and channel monitoring is performed on the at least two LBT frequency bands;

[0057] In some embodiments, for the above-mentioned 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 the relative time-frequency resource position, 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 position, 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 position of the first PUCCH, a first LBT band where channel monitoring is successful is determined among at least two LBT bands corresponding to the first physical uplink control channel PUCCH.

[0059] In some embodiments, for the at least two LBT frequency bands, the first PUCCH channel may include different parameter configurations. Schematically, for the at least two LBT frequency bands, the relative frequency domain resource positions of the first PUCCH are different, such as: the frequency domain resource position of the first PUCCH channel on the first LBT frequency band is interlace 3, while the frequency domain resource position on the second LBT frequency band is interlace 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, and the second physical uplink control channel PUCCH is configured to correspond to the second LBT frequency band, and channel monitoring is performed on at least two LBT frequency bands including the second LBT frequency band.

[0061] In response to the failure of monitoring the second LBT frequency band corresponding to the second physical uplink control channel PUCCH, the first LBT frequency band in which the channel monitoring is successful is determined from other LBT frequency bands; in response to the successful monitoring of the second LBT frequency band corresponding to the second physical uplink control channel PUCCH, there is no need to determine the first LBT frequency band, and the uplink communication message is transmitted directly through the second physical uplink control channel PUCCH.

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

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

[0064] For the above two methods of determining the LBT frequency band, the methods of sending uplink communication messages are described 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 corresponding at least two LBT frequency bands, after determining the first LBT frequency band where the channel monitoring is successful from the at least two LBT frequency bands, 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 at least two LBT frequency bands, that is, the physical resource position on each LBT frequency band is certain, 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] Indicatively, a physical uplink control channel PUCCH resource is configured for the terminal, and multiple LBT bands are configured for the physical uplink control channel PUCCH resource, such as: configuring 3 LBT bands, namely LBT band 1, LBT band 2 and LBT band 3. When the terminal uses the physical uplink control channel PUCCH to send HARQ-ACK information, channel monitoring is performed on these three LBT bands. When the LBT band channel monitoring is successful, the HARQ-ACK information is sent on the PUCCH channel on the LBT band where the channel monitoring is successful.

[0067] The uplink communication message may be implemented as HARQ-ACK information. In some embodiments, the uplink communication message is high-priority HARQ-ACK information.

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

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

[0070] In an optional embodiment, the first physical uplink control channel (PUCCH) has the same relative time-frequency resource location with respect to at least two LBT frequency bands. In this way, since the physical resource location on each LBT frequency band is fixed, after the first LBT frequency band is determined, the uplink communication message can be sent at the physical resource location corresponding to the first LBT frequency band.

[0071] The uplink communication message may be implemented as HARQ-ACK information. In some embodiments, the uplink communication message is high-priority HARQ-ACK information.

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

[0073] 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, and the channel monitoring of the second LBT frequency band fails, then the first LBT frequency band where the channel monitoring is successful is determined in the other LBT frequency bands of the BWP, wherein the channel monitoring of multiple LBT frequency bands is performed simultaneously, because the base station may not configure PUCCH resources for the terminal on the first LBT frequency band, or even if multiple PUCCH resources are configured, the PUCCH resources do not meet the delay requirements in terms of time. In some embodiments, the first relative time-frequency resource position of the first physical uplink control channel PUCCH for sending uplink communication messages relative to the first LBT frequency 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 frequency band, that is, the first physical uplink control channel PUCCH and the second physical uplink control channel PUCCH differ only in the index of the corresponding LBT frequency band.

[0074] Schematically, the terminal's configured uplink bandwidth includes two LBT frequency bands: LBT bandwidth 0 and LBT bandwidth 1. The base station configures the physical resource location for the terminal to send HARQ-ACK information as PUCCH channel 1 in LBT bandwidth 0. PUCCH channel 1 occupies time-frequency resources of symbols 13 / 14, with frequency domain resource interleave 3. Before sending HARQ-ACK information on PUCCH channel 1, the terminal needs to perform channel sensing. If channel sensing fails on LBT bandwidth 0 but succeeds on LBT bandwidth 1, the terminal selects PUCCH channel 2 in LBT bandwidth 1 to send HARQ-ACK information. PUCCH channel 2 is a channel in LBT bandwidth 1 and occupies the same time domain resource location as PUCCH channel 1 in LBT bandwidth 0. It occupies time-frequency resources of symbols 13 / 14, and the frequency domain resource location of PUCCH channel 2 in LBT bandwidth 1 is also the same relative location as PUCCH channel 1 in LBT bandwidth 0, i.e., interleave 3.

[0075] In combination with the above example, it can be understood that the frequency domain resource position 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 a channel format, a maximum code rate, and a cyclic shift code.

[0077] The uplink communication message may be implemented as HARQ-ACK information. In some embodiments, the uplink communication message is high-priority HARQ-ACK information.

[0078] In some embodiments, when the at least two LBT frequency bands include n LBT frequency bands with successful channel monitoring, n is a positive integer, and the first LBT frequency band is determined in any one of the following ways:

[0079] First, in response to at least two LBT frequency bands including an LBT frequency band in which n channels are successfully monitored, selecting a first LBT frequency band according to the order of the LBT frequency band indexes;

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

[0081] Second, in response to the at least two LBT frequency bands including an LBT frequency band in which n channels are successfully monitored, selecting a first LBT frequency band with the smallest channel interference level;

[0082] Third, in response to the at least two LBT frequency bands including an LBT frequency band in which n channels are successfully monitored, an LBT frequency band is arbitrarily selected as the first LBT frequency band.

[0083] To sum up, the communication method provided by the embodiment of the present disclosure performs channel monitoring on at least two LBT frequency bands, thereby determining the first LBT frequency band where the channel monitoring is successful from at least two LBT frequency bands, and sending an uplink communication message on the first physical uplink control channel PUCCH of the first LBT frequency band, so that 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.

[0084] In an optional embodiment, the terminal performs channel monitoring on at least two LBT frequency bands and selects the LBT frequency band where the channel monitoring is successful to send an uplink communication message; and the base station monitors the uplink communication message on at least two LBT frequency bands. Figure 3 is a flow chart of a communication method provided by another exemplary embodiment of the present disclosure, wherein the method is applied to Figure 1 The communication system shown in FIG. Figure 3 As shown, the method includes:

[0085] In step 301, the terminal determines a first listen-before-talk (LBT) frequency band in which channel monitoring is successful from at least two LBT frequency bands.

[0086] In some embodiments, the at least two LBT frequency 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 corresponding at least two LBT frequency bands, and channel monitoring 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, and the second physical uplink control channel PUCCH is configured to correspond to the second LBT frequency band, and channel monitoring 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 on the first LBT frequency band.

[0090] For the above two methods of determining the LBT frequency band, the methods of sending uplink communication messages are described 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 corresponding at least two LBT frequency bands, after determining the first LBT frequency band in which channel monitoring is successful from the at least two LBT frequency bands, the terminal sends the uplink communication message 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 the channel monitoring of the second LBT frequency band fails, the first LBT frequency band where the channel monitoring is successful is determined among the other LBT frequency bands of the BWP, wherein the channel monitoring of multiple LBT frequency bands is carried out simultaneously.

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

[0095] Optionally, the access network device monitors the uplink communication message in any one of the following ways:

[0096] First, the access network device configures a first physical uplink control channel PUCCH for sending uplink communication messages for the terminal, and when the first physical uplink control channel PUCCH is configured with corresponding at least two LBT frequency bands, the access network device monitors the uplink communication messages from the first PUCCH channels of the at least two LBT frequency bands;

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

[0098] Second, the access network device configures a second physical uplink control channel PUCCH for sending uplink communication messages for the terminal, 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 monitors the second physical uplink control channel PUCCH of the second LBT frequency band. When the second physical uplink control channel PUCCH does not include the uplink communication message sent by the terminal, it monitors other LBT frequency bands and monitors the uplink communication message from the first physical uplink control channel PUCCH of the first LBT frequency band in the other LBT frequency bands. The first LBT frequency band is the LBT frequency band where the channel monitoring is successful when the terminal sends the uplink communication message. In some embodiments, the first relative time-frequency resource position of the first physical uplink control channel PUCCH relative to the first LBT frequency 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 frequency band, that is, the first physical uplink control channel PUCCH and the second physical uplink control channel PUCCH differ only in the index of the corresponding LBT frequency band.

[0100] In combination with the above example, it can be understood that the frequency domain resource position 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 a channel format, a maximum code rate, and a cyclic shift code.

[0102] In some embodiments, the access network device monitors uplink communication messages from the PUCCH channel in order from small to large according to the index of the LBT frequency band.

[0103] To sum up, the communication method provided by the embodiment of the present disclosure performs channel monitoring on at least two LBT frequency bands, thereby determining the first LBT frequency band where the channel monitoring is successful from at least two LBT frequency bands, and sending an uplink communication message on the first physical uplink control channel PUCCH of the first LBT frequency band, so that 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.

[0104] This application also discloses a resource scheduling method, such as Figure 4 As shown, the method is described by taking the application of the method in the access network device as an example. The method includes:

[0105] Step 401: configure a first physical uplink control channel PUCCH for sending uplink communication messages for the terminal, where 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 position, 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] Through the above technical solutions, the resource configuration of the terminal can be optimized, and flexible scheduling of system resources can be achieved to ensure stable and efficient PUCCH channel transmission.

[0110] This application also discloses a resource scheduling method, such as Figure 5 As shown, the method is described by taking the application of the method in the access network device as an example. The method includes:

[0111] Step 501: configure a second physical uplink control channel PUCCH for sending uplink communication messages for the terminal, and the second physical uplink control channel PUCCH is configured to correspond to a second LBT frequency band.

[0112] In an optional embodiment, the method may include: in response to the second physical uplink control channel PUCCH not including the uplink communication message, receiving the uplink communication message from the first physical uplink control channel PUCCH of the first LBT band in other LBT bands.

[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 frequency 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 frequency 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 a channel format, a maximum code rate, and a cyclic shift code.

[0115] In an optional embodiment, the at least two LBT frequency bands are LBT frequency bands included in the bandwidth part BWP configured by the terminal.

[0116] Similarly, through the above technical solutions, the resource configuration of the terminal can be optimized, and flexible scheduling of system resources can be achieved to ensure stable and efficient PUCCH channel transmission.

[0117] Figure 6 is a structural block diagram of a communication device provided by an exemplary embodiment of the present disclosure, such as Figure 6 As shown, taking the device applied to a terminal as an example, the device includes:

[0118] A processing module 610 is configured to determine a first LBT frequency band in which channel monitoring is successful from at least two listen-before-talk LBT frequency bands;

[0119] The sending module 620 is used to send an uplink communication message on the first physical uplink control channel PUCCH on the first LBT frequency band.

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

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

[0122] In an optional embodiment, the channel parameters include at least one of relative time-frequency resource positions in different LBT frequency bands, channel formats, maximum code rates, and cyclic shift codes.

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

[0124] In an optional embodiment, the terminal is configured with a second physical uplink control channel PUCCH for sending the uplink communication message, 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 in channel monitoring on the second LBT frequency band, determine the first LBT frequency band in which channel monitoring succeeds among other LBT frequency bands;

[0126] In an optional embodiment, the sending module 620 is further used to send the uplink communication message on the second physical uplink control channel PUCCH in response to successful channel monitoring on the second LBT frequency 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 frequency 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 frequency 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 a channel format, a maximum code rate, and a cyclic shift code.

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

[0131] In an optional embodiment, the processing module 610 is further used to select the first LBT band in response to the at least two LBT bands including n LBT bands with successful channel monitoring, sorting according to the index numbers of the LBT bands, where n is a positive integer.

[0132] In an optional embodiment, the first LBT frequency band is selected sequentially after sorting the index numbers of the LBT frequency bands from small to large.

[0133] In an optional embodiment, the processing module 610 is further used to select the first LBT frequency band with the smallest channel interference level in response to the at least two LBT frequency bands including n LBT frequency bands with successful channel monitoring, where n is a positive integer.

[0134] Figure 7 This is a structural block diagram of a communication device provided by another exemplary embodiment of the present disclosure, taking the device applied to an access network device as an example. Figure 7 As shown, the device includes:

[0135] The receiving module 710 is configured to monitor uplink communication messages sent by a terminal on a first physical uplink control channel PUCCH in at least two listen-before-talk LBT frequency bands.

[0136] In an optional embodiment, the device further comprises:

[0137] The processing module 720 is used to configure the first physical uplink control channel PUCCH for sending the uplink communication message for the terminal, and 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 the time-frequency resource position, channel format, maximum code rate, and cyclic shift code relative to different LBT frequency bands.

[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 device further comprises:

[0142] A processing module 720 is configured to configure a second physical uplink control channel PUCCH for the terminal to send the uplink communication message, where the second physical uplink control channel PUCCH is configured to correspond to a 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 frequency band in other LBT frequency bands in response to the second physical uplink control channel PUCCH not including 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 frequency 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 frequency 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 a channel format, a maximum code rate, and a cyclic shift code.

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

[0148] To sum up, the communication device provided by the embodiment of the present disclosure performs channel monitoring on at least two LBT frequency bands, thereby determining the first LBT frequency band where the channel monitoring is successful from at least two LBT frequency bands, and sending an uplink communication message on the first physical uplink control channel PUCCH of the first LBT frequency band, so that 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.

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

[0150] The processing module 810 is used to configure a first physical uplink control channel PUCCH for sending uplink communication messages for the terminal, where 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 position, 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] Through the above technical solutions, the resource configuration of the terminal can be optimized and the flexible scheduling of system resources can be achieved.

[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 sending uplink communication messages for the terminal, and the second physical uplink control channel PUCCH is configured to correspond to the second LBT frequency band.

[0157] In an optional embodiment, the device further comprises:

[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 frequency band in other LBT frequency bands in response to the second physical uplink control channel PUCCH not including the uplink communication message.

[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 frequency 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 frequency 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 a channel format, a maximum code rate, and a cyclic shift code.

[0161] In an optional embodiment, the at least two LBT frequency bands are LBT frequency bands included in the bandwidth part BWP configured by the terminal.

[0162] Figure 10 100 shows a schematic structural diagram of a terminal provided by 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 may be implemented as a communication component, which may be a communication chip.

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

[0166] The memory 1004 may be used to store at least one instruction, and the processor 1001 may be used to execute the at least one instruction to implement each step in the above method embodiment.

[0167] In addition, 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 disk or optical disk, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static random access memory (SRAM), read-only memory (ROM), magnetic memory, 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, wherein the instructions can be executed by a processor of a terminal to perform the method performed by the terminal side in the above-mentioned communication method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0169] A non-transitory computer-readable storage medium, when instructions in the non-transitory computer storage medium are executed by a processor of a terminal, enables the terminal to perform the above-mentioned communication method.

[0170] Figure 11 FIG1 is a block diagram showing 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, the transmitter 1103, and the memory 1104 are respectively connected to the processor 1101 via a bus.

[0172] The processor 1101 includes one or more processing cores and executes the methods performed by the access network device in the communication methods provided in the embodiments of this disclosure 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 an application module 1142 required for at least one 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 the present disclosure further provides a communication system, the system comprising: a terminal and an access network device;

[0174] The terminal includes Figure 6 The communication device provided by the illustrated embodiment;

[0175] The access network equipment includes: Figure 7 The communication device provided in the embodiment shown; or, the access network device includes Figure 8 The resource scheduling device provided in the embodiment shown; or, the access network device includes Figure 9 The illustrated embodiment provides a resource scheduling device.

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

[0177] The terminal includes Figure 10 The terminal provided by the illustrated embodiment;

[0178] The access network equipment includes: Figure 11 The access network device provided by the illustrated embodiment.

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

[0180] It should be understood that the term "plurality" used herein refers to two or more. "And / or" describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates an "or" relationship between the associated objects.

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

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

Claims

1. A communication method, characterized in that: Applied in a terminal, the method includes: Determining a first LBT frequency band in which channel monitoring is successful from at least two listen-before-talk (LBT) frequency bands; Sending an uplink communication message on a first physical uplink control channel PUCCH on the first LBT frequency band; The terminal is configured with a second PUCCH for sending the uplink communication message, and the second PUCCH is configured to correspond to a second LBT frequency band; In response to the failure of channel monitoring on the second LBT frequency band, the first LBT frequency band in which channel monitoring is successful is determined among other LBT frequency bands, and the uplink communication message is sent on the first PUCCH. The first relative time-frequency resource position of the first PUCCH relative to the first LBT frequency band is the same as the second relative time-frequency resource position of the second PUCCH relative to the second LBT frequency band. The index of the LBT frequency band corresponding to the first PUCCH is different from the index of the LBT frequency band corresponding to the second PUCCH. The time domain resource positions in the first relative time-frequency resource position and the second relative time-frequency resource position are indicated by symbols, and the frequency domain resource positions are indicated by frequency domain resource blocks RB.

2. The method according to claim 1, characterized in that The terminal is configured with the first PUCCH for sending the uplink communication message, and the first PUCCH is configured with the at least two LBT frequency bands.

3. The method according to claim 2, characterized in that For the at least two LBT frequency bands, the channel parameters of the first PUCCH are the same.

4. The method according to claim 3, characterized in that The channel parameters include at least one of relative time-frequency resource position, channel format, maximum code rate, and cyclic shift code.

5. The method according to claim 2, characterized in that For the at least two LBT frequency bands, the parameter configuration of the first PUCCH is different.

6. The method according to claim 1, characterized in that The channel parameters of the first PUCCH are consistent with the channel parameters of the second PUCCH; The channel parameters include at least one of a channel format, a maximum code rate, and a cyclic shift code.

7. The method according to any one of claims 1 to 6, characterized in that: The at least two LBT frequency bands are LBT frequency bands included in the bandwidth part BWP configured for the terminal.

8. The method according to any one of claims 1 to 6, characterized in that: The method further comprises: In response to the at least two LBT frequency bands including n LBT frequency bands with successful channel monitoring, the first LBT frequency band is selected according to the index number sorting of the LBT frequency bands, where n is a positive integer.

9. The method according to claim 8, characterized in that The first LBT frequency band is selected sequentially after sorting the index numbers of the LBT frequency bands from small to large.

10. The method according to any one of claims 1 to 6, characterized in that: The method further comprises: In response to the at least two LBT frequency bands including n LBT frequency bands in which channel monitoring is successful, the first LBT frequency band with the smallest channel interference level is selected, where n is a positive integer.

11. A communication method, characterized in that: Applied to access network equipment, the method includes: Monitoring uplink communication messages sent by the terminal on first physical uplink control channels (PUCCHs) of at least two listen-before-talk (LBT) frequency bands; Configuring a second PUCCH for the terminal to send the uplink communication message, where the second PUCCH is configured to correspond to a second LBT frequency band; In response to the uplink communication message not being included on the second PUCCH, the uplink communication message is received from the first PUCCH of the first LBT frequency band in other LBT frequency bands, the first relative time-frequency resource position of the first PUCCH relative to the first LBT frequency band is the same as the second relative time-frequency resource position of the second PUCCH relative to the second LBT frequency band, the index of the LBT frequency band corresponding to the first PUCCH is different from the index of the LBT frequency band corresponding to the second PUCCH, the time domain resource position in the first relative time-frequency resource position and the second relative time-frequency resource position is indicated by a symbol, and the frequency domain resource position is indicated by a frequency domain resource block RB.

12. The method according to claim 11, characterized in that The method further comprises: The first PUCCH for sending the uplink communication message is configured for the terminal, and the first PUCCH is configured with the at least two LBT frequency bands.

13. The method according to claim 12, characterized in that The method further comprises: For the at least two LBT frequency bands, the same channel parameters are configured for the first PUCCH.

14. The method according to claim 13, characterized in that The channel parameters include at least one of relative time-frequency resource position, channel format, maximum code rate, and cyclic shift code.

15. The method according to claim 12, characterized in that The method further comprises: For the at least two LBT frequency bands, different channel parameters are configured for the first PUCCH.

16. The method according to claim 11, characterized in that The channel parameters of the first PUCCH are consistent with the channel parameters of the second PUCCH; The channel parameters include at least one of a channel format, a maximum code rate, and a cyclic shift code.

17. The method according to any one of claims 11 to 16, characterized in that: The at least two LBT frequency bands are LBT frequency bands included in the bandwidth part BWP configured for the terminal.

18. A communication device, characterized in that: Applied in a terminal, the device includes: A processing module, configured to determine a first listen-before-talk (LBT) frequency band in which channel monitoring is successful from at least two LBT frequency bands; A sending module, configured to send an uplink communication message on a first physical uplink control channel PUCCH on the first LBT frequency band; The terminal is configured with a second PUCCH for sending the uplink communication message, and the second PUCCH is configured to correspond to a second LBT frequency band; The processing module is also used to determine the first LBT band where channel monitoring is successful among other LBT bands in response to a failure of channel monitoring on the second LBT band, 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, the index of the LBT band corresponding to the first PUCCH is different from the index of the LBT band corresponding to the second PUCCH, the time domain resource positions in the first relative time-frequency resource position and the second relative time-frequency resource position are indicated by symbols, and the frequency domain resource positions are indicated by frequency domain resource blocks RBs.

19. The device according to claim 18, characterized in that The terminal is configured with the first PUCCH for sending the uplink communication message, and the first PUCCH is configured with the at least two LBT frequency bands.

20. The device according to claim 19, characterized in that For the at least two LBT frequency bands, the channel parameters of the first PUCCH are the same.

21. The device according to claim 20, characterized in that The channel parameters include at least one of relative time-frequency resource position, channel format, maximum code rate, and cyclic shift code.

22. The device according to claim 19, characterized in that For the at least two LBT frequency bands, the parameter configuration of the first PUCCH is different.

23. The device according to claim 18, characterized in that The sending module is further configured to send the uplink communication message on the second PUCCH in response to successful channel monitoring on the second LBT frequency band.

24. The device according to claim 18, wherein The channel parameters of the first PUCCH are consistent with the channel parameters of the second PUCCH; The channel parameters include at least one of a channel format, a maximum code rate, and a cyclic shift code.

25. The device according to any one of claims 18 to 24, characterized in that The at least two LBT frequency bands are LBT frequency bands included in the bandwidth part BWP configured for the terminal.

26. The device according to any one of claims 18 to 24, characterized in that The processing module is further configured to select the first LBT frequency band in response to the at least two LBT frequency bands including n LBT frequency bands with successful channel monitoring, according to the index number sorting of the LBT frequency bands, where n is a positive integer.

27. The device according to claim 26, characterized in that The first LBT frequency band is selected sequentially after sorting the index numbers of the LBT frequency bands from small to large.

28. The device according to any one of claims 18 to 24, characterized in that The processing module is further configured to select the first LBT frequency band with the smallest channel interference level in response to the at least two LBT frequency bands including n LBT frequency bands with successful channel monitoring, where n is a positive integer.

29. A communication device, characterized in that: Applied to access network equipment, the device includes: A receiving module, configured to monitor uplink communication messages sent by a terminal on a first physical uplink control channel PUCCH of at least two listen-before-talk LBT frequency bands; a processing module, configured to configure a second PUCCH for the terminal to send the uplink communication message, where the second PUCCH is configured to correspond to a second LBT frequency band; The receiving module is further used to receive the uplink communication message from the first PUCCH of the first LBT frequency band in other LBT frequency bands in response to the second PUCCH not including the uplink communication message, the first relative time-frequency resource position of the first PUCCH relative to the first LBT frequency band is the same as the second relative time-frequency resource position of the second PUCCH relative to the second LBT frequency band, the index of the LBT frequency band corresponding to the first PUCCH is different from the index of the LBT frequency band corresponding to the second PUCCH, the time domain resource position in the first relative time-frequency resource position and the second relative time-frequency resource position is indicated by a symbol, and the frequency domain resource position is indicated by a frequency domain resource block RB.

30. The device according to claim 29, characterized in that The device further comprises: A processing module is used to configure the first PUCCH for sending the uplink communication message for the terminal, and the first PUCCH is configured with the at least two LBT frequency bands.

31. The device according to claim 30, characterized in that The processing module is also used to configure the same channel parameters for the first PUCCH for the at least two LBT frequency bands.

32. The device according to claim 31, characterized in that The channel parameters include at least one of relative time-frequency resource position, channel format, maximum code rate, and cyclic shift code.

33. The device according to claim 30, characterized in that The processing module is also used to configure different channel parameters for the first PUCCH for the at least two LBT frequency bands.

34. The device according to claim 29, characterized in that The channel parameters of the first PUCCH are consistent with the channel parameters of the second PUCCH; The channel parameters include at least one of a channel format, a maximum code rate, and a cyclic shift code.

35. The device according to any one of claims 29 to 34, characterized in that The at least two LBT frequency bands are LBT frequency bands included in the bandwidth part BWP configured for the terminal.

36. A terminal, characterized in that: The terminal includes: processor; a transceiver connected to the processor; The processor is configured to load and execute executable instructions to implement the communication method according to any one of claims 1 to 10.

37. An access network device, characterized in that: The access network equipment includes: processor; a transceiver connected to the processor; The processor is configured to load and execute executable instructions to implement the communication method according to any one of claims 11 to 17.

38. A computer-readable storage medium, wherein at least one program is stored in the computer-readable storage medium, and the at least one program is loaded and executed by a processor to implement the communication method according to any one of claims 1 to 17.

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