Method for determining listening bandwidth, information transmission method, device and communication equipment

Abstract

The application discloses a method for determining a listening bandwidth, a method for transmitting information, a device and a communication device. The method comprises: a communication device adjusts a listen before talk (LBT) bandwidth of a shared spectrum according to a first bandwidth; wherein the first bandwidth comprises at least one of the following: a bandwidth of a currently activated bandwidth part (BWP); a bandwidth of an initial BWP; a bandwidth of a target resource scheduled or configured by a network; and in the embodiment of the application, the communication device dynamically adjusts the LBT bandwidth based on the first bandwidth, so that the communication device can avoid unnecessary channel listening on a non-scheduled or non-activated resource.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a method for determining listening bandwidth, an information transmission method, an apparatus, and a communication device. Background Technology

[0002] In future communication systems, shared spectrum, such as unlicensed bands, can supplement licensed bands to help operators expand service capacity. To maintain consistency with New Radio (NR) deployments and maximize NR-based unlicensed access, unlicensed bands can operate in the 5GHz, 37GHz, and 60GHz bands. Since unlicensed bands are shared by multiple technologies (RATs), such as WiFi, radar, and Long Term Evolution-Licensed Assisted Access (LTE-LAA), their use must comply with rules to ensure fair resource allocation for all devices. These rules include Listen Before Talk (LBT) and Maximum Channel Occupancy Time (MCOT). When a transmitting node needs to send information, it first performs LBT, checking the power of surrounding nodes (ED). If the detected power is below a threshold, the channel is considered idle, and the transmitting node can transmit. Conversely, if the channel is busy, the transmission node cannot send data. Transmission nodes can be base stations, terminals, WiFi nodes, etc. Once a transmission node begins transmission, the channel time it occupies cannot exceed the MCOT (Multiple Channel Time Limit).

[0003] In the 52.6GHz-71GHz frequency band, WiFi channel bandwidth can reach 2.16GHz, and WiFi performs LBT (Low-Band Bit Transmission) based on this channel bandwidth. For NR systems, the maximum and minimum supported bandwidths for terminals are still under discussion, but the maximum supported bandwidth will not exceed 2.16GHz. Therefore, when considering coexistence with WiFi, there will be no issues similar to those with 6GHz; the LBT bandwidth cannot exceed the WiFi channel bandwidth by 20MHz. Currently, the LBT bandwidth in the 52.6GHz-71GHz frequency band is a continuous LBT bandwidth, and its discussion with channel bandwidth is as follows:

[0004] Option 1: LBT bandwidth equals channel bandwidth;

[0005] Option 2: LBT bandwidth equals the minimum of channel bandwidth and transmission bandwidth;

[0006] Option 3: The LBT bandwidth can be larger than the channel bandwidth;

[0007] Option 4: The LBT bandwidth can be narrower than the channel bandwidth, and each channel has multiple LBT subbands;

[0008] Option 5: The LBT bandwidth is equal to the minimum supported channel bandwidth or a multiple of the minimum supported bandwidth.

[0009] The aforementioned possible definition of LBT bandwidth only considers its relationship with channel bandwidth. In actual systems, channel bandwidth is only a relatively large range. The system further configures at least one bandwidth part (BWP) for each terminal, and each terminal has only one active bandwidth part (active BWP) at any given time. The bandwidth of the BWP is less than or equal to the channel bandwidth. The base station further schedules or configures transmission for the terminal within the BWP. LBT listens for the channel to be transmitted. Considering that the actual configured or scheduled resource bandwidth is less than or equal to the bandwidth of the active BWP, the current possible definition of LBT bandwidth may lead to some unnecessary listening on inactive or unscheduled resources. Summary of the Invention

[0010] This application provides a method for determining listening bandwidth, an information transmission method, an apparatus, and a communication device, which can solve the problem that the definition of LBT bandwidth in the prior art leads to unnecessary listening on inactive or non-scheduled resources.

[0011] In a first aspect, embodiments of this application provide a method for determining the listening bandwidth of a shared spectrum, including:

[0012] The communication device adjusts the listen-before-speak (LBT) bandwidth of the shared spectrum according to a first bandwidth; wherein the first bandwidth includes at least one of the following:

[0013] The currently active bandwidth portion is the bandwidth of the BWP.

[0014] Initial BWP bandwidth;

[0015] The bandwidth of the target resource in network scheduling or configuration.

[0016] Secondly, embodiments of this application provide an information transmission method, including:

[0017] When multiple consecutive transmissions in the time domain correspond to different beam information, the terminal performs any one of the following operations after completing the transmission corresponding to one beam information:

[0018] After switching beams, the terminal does not perform Listen-Before-Speak (LBT) and continues subsequent transmission;

[0019] After switching beams, the terminal performs a one-time LBT for the new transmission and then proceeds with subsequent transmissions based on the monitoring results.

[0020] Thirdly, embodiments of this application provide a shared spectrum eavesdropping bandwidth determination apparatus, comprising:

[0021] The adjustment module is configured to adjust the listen-before-speak LBT bandwidth of the shared spectrum according to a first bandwidth; wherein the first bandwidth includes at least one of the following:

[0022] The currently active bandwidth portion is the bandwidth of the BWP.

[0023] Initial BWP bandwidth;

[0024] The bandwidth of the target resource in network scheduling or configuration.

[0025] Fourthly, embodiments of this application provide an information transmission device, including:

[0026] The operation module is used to, when multiple consecutive transmissions in the time domain correspond to different beam information, allow the terminal to perform any one of the following operations after completing the transmission corresponding to one beam information:

[0027] After switching beams, the terminal does not perform Listen-Before-Speak (LBT) and continues subsequent transmission;

[0028] After switching beams, the terminal performs a one-time LBT for the new transmission and then proceeds with subsequent transmissions based on the monitoring results.

[0029] Fifthly, embodiments of this application provide a communication device, which includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the first aspect.

[0030] In a sixth aspect, embodiments of this application provide a terminal, which includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the second aspect.

[0031] In a seventh aspect, embodiments of this application provide a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0032] Eighthly, embodiments of this application provide a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run network-side device programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0033] In the embodiments of this application, the LBT bandwidth is dynamically adjusted based on at least one of the bandwidth of the currently active BWP, the bandwidth of the initial BWP, and the bandwidth of the target resource scheduled or configured by the network, which can prevent the communication device from performing unnecessary channel snooping on non-scheduled or inactive resources. Attached Figure Description

[0034] Figure 1 A block diagram illustrating a wireless communication system to which embodiments of this application may be applied;

[0035] Figure 2 This is a schematic diagram illustrating the steps of the method for determining the listening bandwidth of a shared spectrum provided in an embodiment of this application;

[0036] Figure 3 This diagram illustrates the steps of the information transmission method provided in the embodiments of this application.

[0037] Figure 4 This is a schematic diagram illustrating the structure of the shared spectrum listening bandwidth determination device provided in an embodiment of this application;

[0038] Figure 5 This is a schematic diagram illustrating the structure of the information transmission device provided in the embodiments of this application;

[0039] Figure 6 This is a schematic diagram of the structure of the communication device provided in the embodiments of this application;

[0040] Figure 7 This is a schematic diagram of the structure of the terminal provided in the embodiments of this application;

[0041] Figure 8 This is a schematic diagram illustrating the structure of the network-side device provided in the embodiments of this application. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0044] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to applications other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0045] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a terminal device or user equipment (UE). The terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), etc. Wearable devices include wristbands, headphones, glasses, etc. It should be noted that this application does not limit the specific type of terminal 11. Network-side device 12 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this embodiment of the application, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0046] The following description, in conjunction with the accompanying drawings, details the method for determining listening bandwidth, the information transmission method, the apparatus, and the communication equipment provided in this application through specific embodiments and application scenarios.

[0047] This application provides a method for determining the listening bandwidth of a shared spectrum, including:

[0048] Step 201: The communication device adjusts the Listen-After-Speak (LBT) bandwidth of the shared spectrum according to the first bandwidth; wherein the first bandwidth includes at least one of the following:

[0049] The currently active bandwidth portion is the bandwidth of the BWP.

[0050] The bandwidth of the initial BWP;

[0051] The bandwidth of the target resource in network scheduling or configuration.

[0052] The communication device mentioned in the embodiments of this application can be a terminal or a network-side device, and no specific limitation is made here.

[0053] In this embodiment, the LBT bandwidth is dynamically variable, and the dynamic adjustment of the LBT bandwidth depends on the bandwidth of the currently active BWP or the bandwidth of the target resource.

[0054] As an optional embodiment, step 201 includes:

[0055] The LBT bandwidth of the shared spectrum is adjusted to be the minimum bandwidth that can cover the first bandwidth.

[0056] The minimum bandwidth capable of covering the first bandwidth includes any one of the following:

[0057] The first bandwidth;

[0058] An integer multiple of the first bandwidth;

[0059] A unit bandwidth capable of covering the first bandwidth;

[0060] It can cover an integer multiple of the unit bandwidth of the first bandwidth.

[0061] Example 1

[0062] The LBT bandwidth is equal to the bandwidth of the currently active BWP. During initial access, the LBT bandwidth equals the bandwidth of the initial BWP, including both uplink and downlink initial BWPs. Once the network-side device configures at least one BWP for the terminal, the LBT bandwidth equals the bandwidth of the currently active BWP. If the active BWP is changed (i.e., a BWP handover occurs), the LBT bandwidth equals the bandwidth of the BWP after the handover. The LBT bandwidth changes with the change of the active BWP. If the LBT bandwidth is one or more finite values, the bandwidth of the configured BWP is limited to one of the aforementioned LBT bandwidths or an integer multiple thereof.

[0063] Optionally, the LBT bandwidth is the minimum bandwidth covering the activated BWP resources. It can be a unit bandwidth or an integer multiple of the unit bandwidth that meets this condition. The unit bandwidth is the bandwidth pre-configured or pre-defined by the system.

[0064] As another optional embodiment, the target resource for network scheduling or configuration includes at least one of the following:

[0065] Resources for at least one Physical Uplink Shared Channel (PUSCH) of the Configured Grant (CG);

[0066] At least one physical uplink transport resource for a Dynamic Grant (DG); such as the Physical Uplink Shared Channel (PUSCH) or the Physical Uplink Control Channel (PUCCH);

[0067] Resources of at least one Physical Downlink Shared Channel (PDSCH) for semi-static scheduling (SPS);

[0068] Resources for at least one physical random access channel (PRACH);

[0069] At least one channel sounding reference signal (SRS) resource.

[0070] Example 2

[0071] For CG PUSCH transmission, the LBT bandwidth depends on the bandwidth occupied by the CG PUSCH resources. The bandwidth of the CG PUSCH resources is indicated by the network-side equipment, including semi-static or dynamic indications, i.e., Radio Resource Control (RRC) or Downlink Control Information (DCI) indications. The LBT bandwidth can be equal to the minimum bandwidth that can cover the CG PUSCH resources. This bandwidth can be equal to the CG PUSCH bandwidth, or it can be a unit bandwidth or an integer multiple of that unit bandwidth, which is a system-preconfigured or predefined bandwidth. The terminal dynamically adjusts the LBT bandwidth according to the bandwidth of different CG PUSCH resources.

[0072] For DG PUSCH / PUCCH transmissions, the LBT bandwidth depends on the bandwidth occupied by the DG PUSCH / PUCCH resources. The bandwidth of the DG PUSCH / PUCCH resources is dynamically indicated by the network-side equipment. The LBT bandwidth can be equal to the minimum bandwidth that can cover the PUSCH / PUCCH resources. This bandwidth can be equal to the indicated PUSCH / PUCCH bandwidth, or it can be a unit bandwidth or an integer multiple of that unit bandwidth, which is a system-preconfigured or predefined bandwidth. The terminal dynamically adjusts the LBT bandwidth according to the bandwidth of different DG PUSCH / PUCCH resources.

[0073] For SPS PDSCH, LBT bandwidth depends on the bandwidth of the SPS PDSCH resource. The bandwidth of the SPS PDSCH resource is dynamically indicated by the network-side device. The LBT bandwidth can be equal to the minimum bandwidth that can cover the bandwidth of the SPS PDSCH resource. This bandwidth can be equal to the indicated bandwidth of the SPS PDSCH resource, or it can be a unit bandwidth or an integer multiple of that unit bandwidth, which is a system-preconfigured or predefined bandwidth. The network-side device can dynamically adjust the LBT bandwidth based on the bandwidth of different SPS PDSCH resources.

[0074] Furthermore, if the network-side device sends multiple SPS PDSCHs simultaneously, the LBT bandwidth needs to cover the bandwidth of all the SPS PDSCH resources that need to be sent. Similarly, this bandwidth can be equal to the set of bandwidths of the multiple SPS PDSCH resources that need to be transmitted, or it can be a unit bandwidth or an integer multiple of a unit bandwidth that satisfies this condition. This unit bandwidth is a bandwidth pre-configured or pre-defined by the system.

[0075] In summary, by dynamically adjusting the LBT bandwidth based on at least one of the bandwidth of the currently active BWP, the bandwidth of the initial BWP, and the bandwidth of the target resource scheduled or configured by the network, the communication device can avoid unnecessary channel eavesdropping on non-scheduled or inactive resources.

[0076] like Figure 3 As shown in the embodiments of this application, an information transmission method is also provided, including:

[0077] Step 301: When multiple consecutive transmissions in the time domain correspond to different beam information, the terminal performs any one of the following operations after completing the transmission corresponding to one beam information:

[0078] After switching beams, the terminal does not perform Listen-Before-Speak (LBT) and continues subsequent transmission;

[0079] After switching beams, the terminal performs a one-shot LBT for the new transmission and then proceeds with subsequent transmissions based on the monitoring results.

[0080] Beaming information can also be referred to as: spatial relation information, spatial domain transmission filter information, spatial filter information, transmission configuration indication state (TCI) information, quasi-co-location (QCL) information, or QCL parameters, etc. For example, multiple consecutive transmissions in the time domain correspond to different beaming information, which means different consecutive transmissions in the time domain correspond to different spatial relation information.

[0081] As an optional embodiment, the terminal does not perform Listen-Before-Speak (LBT) after switching beams, but continues subsequent transmission, including:

[0082] If the first condition is met, the terminal will not perform Listen-Before-Speak (LBT) after switching beams and will continue with subsequent transmissions; wherein the first condition includes at least one of the following:

[0083] The beam switching time is less than or equal to a first threshold; the first threshold is X1 μs, where X1 can be equal to 16 or 8, or a smaller value.

[0084] The terminal uses omnidirectional LBT to obtain the channel occupancy time in the transmission corresponding to the previous beam information.

[0085] As another optional embodiment, the terminal performs a one-time LBT for the new transmission after switching beams, and performs subsequent transmissions based on the monitoring results, including:

[0086] If the second condition is met, the terminal performs a one-time LBT for the new transmission after switching beams, and then proceeds with subsequent transmissions based on the monitoring results; wherein the second condition includes at least one of the following:

[0087] The beam switching time is greater than or equal to the second threshold; the second threshold is X2 μs, where X2 can be equal to 16 or 8, or a smaller value.

[0088] The terminal uses directional LBT to obtain the channel occupancy time in the transmission corresponding to the previous beam information;

[0089] The listening beam direction used by the terminal to obtain the channel occupancy time in the transmission corresponding to the previous beam information does not include the listening beam direction corresponding to the currently transmitted beam.

[0090] It should be noted that the first threshold and the second threshold mentioned above can be the same or different, and no specific limitation is made here.

[0091] In at least one embodiment of this application, the method further includes:

[0092] Discard transmissions that overlap with beam switching time; or, punch holes in the transmissions that overlap with beam switching time.

[0093] In the case of multiple transmissions that are continuously configured or scheduled in the time domain and adopt different beamforming directions, the embodiments of this application provide different operations after the terminal completes a transmission, which can improve transmission efficiency while ensuring transmission quality.

[0094] It should be noted that the shared spectrum eavesdropping bandwidth determination method or information transmission method provided in this application embodiment can be executed by an eavesdropping bandwidth determination device or an information transmission device, or a control module within the eavesdropping bandwidth determination device or information transmission device for executing the loading eavesdropping bandwidth determination method or information transmission method. This application embodiment uses the eavesdropping bandwidth determination device or information transmission device executing the eavesdropping bandwidth determination method or information transmission method as an example to illustrate the eavesdropping bandwidth determination device or information transmission device provided in this application embodiment.

[0095] like Figure 4 As shown in the illustration, this application also provides a shared spectrum eavesdropping bandwidth determination device 400, comprising:

[0096] Adjustment module 401 is configured to adjust the listen-before-speak LBT bandwidth of the shared spectrum according to a first bandwidth; wherein the first bandwidth includes at least one of the following:

[0097] The currently active bandwidth portion is the bandwidth of the BWP.

[0098] Initial BWP bandwidth;

[0099] The bandwidth of the target resource in network scheduling or configuration.

[0100] As an optional embodiment, the adjustment module includes:

[0101] The adjustment submodule is used to adjust the LBT bandwidth of the shared spectrum to the minimum bandwidth that can cover the first bandwidth.

[0102] As an optional embodiment, the minimum bandwidth capable of covering the first bandwidth includes any of the following:

[0103] The first bandwidth;

[0104] An integer multiple of the first bandwidth;

[0105] A unit bandwidth capable of covering the first bandwidth;

[0106] It can cover an integer multiple of the unit bandwidth of the first bandwidth.

[0107] As an optional embodiment, the target resource for network scheduling or configuration includes at least one of the following:

[0108] Configure and authorize resources for at least one physical uplink shared channel;

[0109] At least one physical uplink resource with dynamic authorization;

[0110] Resources of at least one physical downlink shared channel for semi-static scheduling;

[0111] Resources for at least one physical random access channel;

[0112] At least one channel detection reference signal resource.

[0113] In this embodiment, the communication device dynamically adjusts the LBT bandwidth based on at least one of the bandwidth of the currently active BWP, the bandwidth of the initial BWP, and the bandwidth of the target resource scheduled or configured by the network, which can prevent the communication device from performing unnecessary channel snooping on non-scheduled or inactive resources.

[0114] It should be noted that the listening bandwidth determination device provided in this application embodiment is a device capable of executing the above-described listening bandwidth determination method. Therefore, all embodiments of the above-described listening bandwidth determination method are applicable to this device and can achieve the same or similar beneficial effects.

[0115] like Figure 5 As shown in the figure, this application embodiment also provides an information transmission device 500, including:

[0116] Operation module 501 is used to perform any one of the following operations after the terminal completes the transmission corresponding to one beam information when multiple consecutive transmissions in the time domain correspond to different beam information:

[0117] After switching beams, the terminal does not perform Listen-Before-Speak (LBT) and continues subsequent transmission;

[0118] After switching beams, the terminal performs a one-time LBT for the new transmission and then proceeds with subsequent transmissions based on the monitoring results.

[0119] As an optional embodiment, the operation module includes:

[0120] The first operation submodule is configured to, under a first condition, prevent the terminal from performing Listen-Before-Speak (LBT) after switching beams and continue subsequent transmissions; wherein the first condition includes at least one of the following:

[0121] The beam switching time is less than or equal to the first threshold.

[0122] The terminal uses omnidirectional LBT to obtain the channel occupancy time in the transmission of the previous beam information.

[0123] As an optional embodiment, the operation module includes:

[0124] The second operation submodule is configured to, under the condition that the second condition is met, perform a one-time LBT for the new transmission after the beam switching, and then perform subsequent transmissions based on the monitoring results; wherein the second condition includes at least one of the following:

[0125] The beam switching time is greater than or equal to the second threshold.

[0126] The terminal uses directional LBT to obtain the channel occupancy time in the transmission of the previous beam information;

[0127] The listening beam direction used by the terminal to obtain the channel occupancy time in the previous beam information transmission does not include the listening beam direction corresponding to the currently transmitted beam.

[0128] As an optional embodiment, the apparatus further includes:

[0129] A discard or punch module is used to discard transmissions that overlap with the beam switching time; or, to punch transmissions that overlap with the beam switching time.

[0130] In the case of multiple transmissions that are continuously configured or scheduled in the time domain and adopt different beamforming directions, the embodiments of this application provide different operations after the terminal completes a transmission, which can improve transmission efficiency while ensuring transmission quality.

[0131] It should be noted that the information transmission device provided in this application embodiment is a device capable of executing the above information transmission method. Therefore, all embodiments of the above information transmission method are applicable to this device and can achieve the same or similar beneficial effects.

[0132] The listening bandwidth determination device or information transmission device in the embodiments of this application can be a device, or it can be a component, integrated circuit, or chip in a terminal. The device can be a mobile electronic device or a non-mobile electronic device. For example, mobile electronic devices can be mobile phones, tablets, laptops, PDAs, in-vehicle electronic devices, wearable devices, ultra-mobile personal computers (UMPCs), netbooks, or personal digital assistants (PDAs), etc., while non-mobile electronic devices can be servers, network attached storage (NAS), personal computers (PCs), televisions (TVs), ATMs, or self-service machines, etc. The embodiments of this application do not impose specific limitations.

[0133] The listening bandwidth determination device or information transmission device in the embodiments of this application can be a device with an operating system. The operating system can be Android, iOS, or other possible operating systems, and this application does not specifically limit it.

[0134] The eavesdropping bandwidth determination device or information transmission device provided in the embodiments of this application can achieve... Figures 2 to 3 The various processes implemented in the method implementation examples will not be described again here to avoid repetition.

[0135] Optional, such as Figure 6 As shown, this application embodiment also provides a communication device 600, including a processor 601, a memory 602, and a program or instructions stored in the memory 602 and executable on the processor 601. For example, when the communication device 600 is a terminal, the program or instructions executed by the processor 601 implement the various processes of the above-described shared spectrum listening bandwidth determination method embodiment, and achieve the same technical effect. When the communication device 600 is a network-side device, the program or instructions executed by the processor 601 implement the various processes of the above-described shared spectrum listening bandwidth determination method embodiment, and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0136] Figure 7 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0137] The terminal 700 includes, but is not limited to, components such as: radio frequency unit 701, network module 702, audio output unit 703, input unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, and processor 710.

[0138] Those skilled in the art will understand that the terminal 700 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to the processor 710 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. 7 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0139] It should be understood that, in this embodiment, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042. The GPU 7041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0140] In this embodiment, the radio frequency unit 701 receives downlink data from the network-side device and processes it for the processor 710; additionally, it sends uplink data to the network-side device. Typically, the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0141] The memory 709 can be used to store software programs or instructions and various data. The memory 709 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 709 may include high-speed random access memory and non-volatile memory, wherein the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0142] Processor 710 may include one or more processing units; optionally, processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 710.

[0143] The processor 710 is configured to adjust the listen-before-speak LBT bandwidth of the shared spectrum according to a first bandwidth; wherein the first bandwidth includes at least one of the following:

[0144] The currently active bandwidth portion is the bandwidth of the BWP.

[0145] Initial BWP bandwidth;

[0146] The bandwidth of the target resource in network scheduling or configuration.

[0147] Alternatively, when multiple consecutive transmissions in the time domain correspond to different beam information, the processor 710 is configured to perform any of the following operations after completing a transmission corresponding to one beam information:

[0148] After switching beams, the terminal does not perform Listen-Before-Speak (LBT) and continues subsequent transmission;

[0149] After switching beams, the terminal performs a one-time LBT for the new transmission and then proceeds with subsequent transmissions based on the monitoring results.

[0150] In this embodiment, the communication device dynamically adjusts the LBT bandwidth based on at least one of the bandwidth of the currently active BWP, the bandwidth of the initial BWP, and the bandwidth of the target resource scheduled or configured by the network, which can prevent the communication device from performing unnecessary channel snooping on non-scheduled or inactive resources.

[0151] It should be noted that the listening bandwidth determination device provided in this application embodiment is a device capable of executing the above-described listening bandwidth determination method. Therefore, all embodiments of the above-described listening bandwidth determination method are applicable to this device and can achieve the same or similar beneficial effects.

[0152] Specifically, embodiments of this application also provide a network-side device. For example... Figure 8 As shown, the network device 800 includes an antenna 81, a radio frequency (RF) device 82, and a baseband device 83. The antenna 81 is connected to the RF device 82. In the uplink direction, the RF device 82 receives information through the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be transmitted and sends it to the RF device 82. The RF device 82 processes the received information and then transmits it through the antenna 81.

[0153] The aforementioned frequency band processing device can be located in the baseband device 83. The method executed by the network-side device in the above embodiments can be implemented in the baseband device 83, which includes a processor 84 and a memory 85.

[0154] Baseband device 83 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 8As shown, one of the chips, for example, is a processor 84, which is connected to a memory 85 to call the program in the memory 85 and execute the network device operation shown in the above method embodiment.

[0155] The baseband device 83 may also include a network interface 86 for exchanging information with the radio frequency device 82, such as a common public radio interface (CPRI).

[0156] Specifically, the network-side device in this embodiment of the invention further includes: instructions or programs stored in memory 85 and executable on processor 84, wherein processor 84 calls the instructions or programs in memory 85 to execute. Figure 6 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0157] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described methods for determining listening bandwidth or transmitting information, and achieve the same technical effect. To avoid repetition, these will not be described again here.

[0158] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0159] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run programs or instructions to implement the various processes of the above-described methods for determining listening bandwidth or transmitting information, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0160] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0161] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0162] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0163] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

[0164] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An information transmission method, characterized in that, include: In the case of multiple consecutive transmissions in the time domain corresponding to different beam information, after the terminal completes the transmission corresponding to one beam information, the terminal performs a one-time Listen-Before-Speak (LBT) for the new transmission after switching beams. The terminal determines the bandwidth for performing the one-time LBT based on a first bandwidth, the first bandwidth including the bandwidth of the currently active bandwidth portion BWP.

2. The method according to claim 1, characterized in that, After the terminal completes the transmission of information corresponding to one beam, the method further includes: After switching beams, the terminal does not perform Listen-Before-Speak (LBT) and continues subsequent transmission.

3. The method according to claim 2, characterized in that, After switching beams, the terminal does not perform Listen-Before-Speak (LBT) and continues subsequent transmissions, including: If the first condition is met, the terminal will not perform Listen-Before-Speak (LBT) after switching beams and will continue with subsequent transmissions; wherein the first condition includes at least one of the following: The beam switching time is less than or equal to the first threshold. The terminal uses omnidirectional LBT to obtain the channel occupancy time in the transmission corresponding to the previous beam information.

4. The method according to claim 1, characterized in that, After switching beams, the terminal performs a one-time LBT (Local Beam Adapter) for the new transmission, including: If the second condition is met, the terminal performs a one-time LBT for the new transmission after switching beams; wherein the second condition includes at least one of the following: The beam switching time is greater than or equal to the second threshold. The terminal uses directional LBT to obtain the channel occupancy time in the transmission corresponding to the previous beam information; The listening beam direction used by the terminal to obtain the channel occupancy time in the transmission corresponding to the previous beam information does not include the listening beam direction corresponding to the currently transmitted beam.

5. The method according to claim 3, characterized in that, The method further includes: Discard transmissions that overlap with beam switching time; or, punch holes in the transmissions that overlap with beam switching time.

6. The method according to claim 1, characterized in that, The terminal determines the bandwidth for the one-time LBT based on the first bandwidth, including: The bandwidth required for the one-time LBT is determined to be the minimum bandwidth that can cover the first bandwidth.

7. The method according to claim 6, characterized in that, The minimum bandwidth capable of covering the first bandwidth includes any one of the following: The first bandwidth; An integer multiple of the first bandwidth; A unit bandwidth capable of covering the first bandwidth; It can cover an integer multiple of the unit bandwidth of the first bandwidth.

8. An information transmission device, characterized in that, include: The operation module is used to, when multiple consecutive transmissions in the time domain correspond to different beam information, ensure that the terminal completes the transmission corresponding to one beam information after completing the transmission. After switching beams, perform a one-time LBT for the new transmission; The operation module is further configured to determine the bandwidth for performing the one-time LBT based on a first bandwidth, wherein the first bandwidth includes the bandwidth of the currently active bandwidth portion BWP.

9. The information transmission device according to claim 8, characterized in that, After completing the transmission of information corresponding to one beam, the operation module is further configured to: After switching beams, LBT (Listen Before Talk) is not performed; subsequent transmission continues.

10. The information transmission device according to claim 9, characterized in that, The operation module includes: The first operation submodule is configured to, upon meeting a first condition, not perform a Listen-Before-Speak (LBT) operation after beam switching and continue subsequent transmission; wherein the first condition includes at least one of the following: The beam switching time is less than or equal to the first threshold. The terminal uses omnidirectional LBT to obtain the channel occupancy time in the transmission corresponding to the previous beam information.

11. The information transmission device according to claim 8, characterized in that, The operation module includes: The second operation submodule is configured to perform a one-time LBT for the new transmission after beam switching, provided that a second condition is met; wherein the second condition includes at least one of the following: The beam switching time is greater than or equal to the second threshold. The terminal uses directional LBT to obtain the channel occupancy time in the transmission corresponding to the previous beam information; The listening beam direction used by the terminal to obtain the channel occupancy time in the transmission corresponding to the previous beam information does not include the listening beam direction corresponding to the currently transmitted beam.

12. The information transmission device according to claim 10, characterized in that, The device further includes: A discard module is used to discard transmissions that overlap with beam switching time; or, The punch module is used to punch holes in transmissions that overlap with beam switching time.

13. The information transmission device according to claim 8, characterized in that, The information transmission device further includes an adjustment module, the adjustment module comprising: The adjustment submodule is used to determine the bandwidth for performing the one-time LBT as the minimum bandwidth that can cover the first bandwidth.

14. The information transmission device according to claim 13, characterized in that, The minimum bandwidth capable of covering the first bandwidth includes any one of the following: The first bandwidth; An integer multiple of the first bandwidth; A unit bandwidth capable of covering the first bandwidth; It can cover an integer multiple of the unit bandwidth of the first bandwidth.

15. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the information transmission method as described in any one of claims 1-7.

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