Resource determination method, device, chip, storage medium, and program product

Abstract

The present application provides a resource determination method, a device, a chip, a storage medium, and a program product. The method comprises: a first device determines a first bandwidth, the first bandwidth being related to a second bandwidth, wherein the first bandwidth comprises a first channel bandwidth, the second bandwidth comprises a first useful channel bandwidth, and the first useful channel bandwidth is a maximum transmission bandwidth; or, the first bandwidth comprises a first useful channel bandwidth, and the second bandwidth comprises a first channel bandwidth.

Description

Resource determination method and device, chip, storage medium, and program product TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of mobile communication, in particular to a resource determination method and device, chip, storage medium, and program product. BACKGROUND

[0002] In a mobile communication system, a series of independent channel bandwidths are defined to simplify the implementation of terminals and networks, avoiding the implementation complexity caused by excessive fragmented bandwidths. However, the spectrum owned by a terminal device may not be exactly equal to a certain channel bandwidth or the sum of several channel bandwidths, which will result in that the terminal device can only use part of the owned bandwidth in practice, thereby causing waste of spectrum. SUMMARY

[0003] Embodiments of the present application provide a resource determination method and device, chip, storage medium, and program product.

[0004] The resource determination method provided by the embodiments of the present application comprises:

[0005] The first device determines a first bandwidth, the first bandwidth being related to a second bandwidth; wherein

[0006] The first bandwidth comprises a first channel bandwidth, and the second bandwidth comprises a first useful channel bandwidth, the first useful channel bandwidth being a maximum transmission bandwidth; or

[0007] The first bandwidth comprises a first useful channel bandwidth, and the second bandwidth comprises a first channel bandwidth.

[0008] The first device provided by the embodiments of the present application comprises:

[0009] A determining unit is configured to determine a first bandwidth, the first bandwidth being related to a second bandwidth; wherein

[0010] The first bandwidth comprises a first channel bandwidth, and the second bandwidth comprises a first useful channel bandwidth, the first useful channel bandwidth being a maximum transmission bandwidth; or

[0011] The first bandwidth comprises a first useful channel bandwidth, and the second bandwidth comprises a first channel bandwidth.

[0012] The communication device provided by the embodiments of the present application can be the first device in the above-mentioned scheme, and the communication device comprises a transceiver, a processor, and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, cooperating with the transceiver to execute the above-mentioned resource determination method.

[0013] The chip provided in this application embodiment is used to implement the resource determination method described above.

[0014] Specifically, the chip includes a processor for retrieving and running a computer program from memory, causing a device equipped with the chip to perform the resource determination method described above.

[0015] The computer-readable storage medium provided in this application embodiment is used to store a computer program that causes a computer to execute the resource determination method described above.

[0016] The computer program product provided in this application includes computer program instructions that cause a computer to execute the resource determination method described above.

[0017] The computer program provided in this application embodiment, when run on a computer, causes the computer to execute the resource determination method described above.

[0018] The above technical solution determines the first useful channel bandwidth based on the first channel bandwidth, or determines the first channel bandwidth based on the first useful channel bandwidth, thereby achieving flexible bandwidth configuration and avoiding the waste of spectrum resources caused by discrete channel bandwidth definitions. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0021] Figure 2 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0022] Figure 3 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0023] Figure 4 is a schematic diagram of the optional channel bandwidth provided in an embodiment of this application;

[0024] Figure 5 is an optional flowchart of the resource determination method provided in an embodiment of this application;

[0025] Figure 6 is a schematic diagram illustrating the optional relationship between channel bandwidth and useful channel bandwidth provided in the embodiments of this application;

[0026] Figure 7 is an optional flowchart of the resource determination method provided in an embodiment of this application;

[0027] Figure 8 is a schematic diagram of the optional resource alignment provided in an embodiment of this application;

[0028] Figure 9 is a schematic diagram of the optional resource alignment provided in an embodiment of this application;

[0029] Figure 10 is a schematic diagram of an optional resource alignment provided in an embodiment of this application;

[0030] Figure 11 is an optional flowchart of the resource determination method provided in an embodiment of this application;

[0031] Figure 12 is an optional flowchart of the resource determination method provided in an embodiment of this application;

[0032] Figure 13 is an optional flowchart of the resource determination method provided in an embodiment of this application;

[0033] Figure 14 is a schematic diagram showing the optional relationship between power spectral density and out-of-band spectrum requirements provided in an embodiment of this application;

[0034] Figure 15 is a schematic diagram showing the optional relationship between power spectral density and out-of-band spectrum requirements provided in an embodiment of this application;

[0035] Figure 16 is a schematic diagram of possible useful channel bandwidths provided in the embodiments of this application;

[0036] Figure 17 is a schematic diagram of possible channel bandwidths provided in an embodiment of this application;

[0037] Figure 18 is a schematic diagram of possible useful channel bandwidths provided in an embodiment of this application;

[0038] Figure 19 is a schematic diagram of possible channel bandwidths provided in an embodiment of this application;

[0039] Figure 20 is an optional flowchart of the resource determination method provided in an embodiment of this application;

[0040] Figure 21 is an optional flowchart of the resource determination method provided in an embodiment of this application;

[0041] Figure 22 is a schematic diagram of an optional structure of the first device provided in an embodiment of this application;

[0042] Figure 23 is a schematic structural diagram of a communication device provided in an embodiment of this application;

[0043] Figure 24 is a schematic structural diagram of a chip according to an embodiment of this application;

[0044] Figure 25 is a schematic block diagram of a communication system provided in an embodiment of this application. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0046] Communication system scenarios include Terrestrial Networks (TN) and NTN. NTN typically uses satellite communication to provide communication services to terrestrial users. Current NTN systems include NR-NTN and IoT-NTN systems, and other NTN systems may be included in the future.

[0047] Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application. As shown in Figure 1, the communication system 100 may include a terminal device 110 and a network device 120. The network device 120 can communicate with the terminal device 110 via an air interface. Multi-service transmission is supported between the terminal device 110 and the network device 120.

[0048] It should be understood that the embodiments of this application are only illustrated by way of example with communication system 100, but the embodiments of this application are not limited thereto. That is to say, the technical solutions of the embodiments of this application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Internet of Things (IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, 5G communication system (also known as New Radio (NR) communication system), or future communication systems, etc.

[0049] In the communication system 100 shown in Figure 1, network device 120 may be an access network device that communicates with terminal device 110. The access network device can provide communication coverage for a specific geographical area and can communicate with terminal device 110 (e.g., UE) located within that coverage area.

[0050] Terminal device 110 can be any terminal device, including but not limited to terminal devices that are connected to network device 120 or other terminal devices via wired or wireless connections.

[0051] Terminal device 110 can be used for device-to-device (D2D) communication.

[0052] The wireless communication system 100 may further include a core network device 130 that communicates with a base station. This core network device 130 may be a 5G core network (5G Core, 5GC) device. Optionally, the core network device 130 may also be an Evolved Packet Core (EPC) device for an LTE network. During network evolution, the aforementioned core network device may be called by other names, or new network entities may be formed by dividing the functions of the core network; this embodiment does not impose any limitations on this.

[0053] The various functional units in the communication system 100 can also establish connections and communicate with each other through the next generation (NG) interface.

[0054] Figure 1 exemplarily illustrates a base station, a core network device, and two terminal devices. Optionally, the wireless communication system 100 may include multiple base station devices, and each base station may include other numbers of terminal devices within its coverage area. This application embodiment does not limit this.

[0055] NTN typically uses satellite communication to provide communication services to terrestrial users. Compared to terrestrial cellular communication, satellite communication has many unique advantages. First, satellite communication is not limited by the user's geographical location. For example, conventional terrestrial communication cannot cover areas such as oceans, mountains, and deserts where communication equipment cannot be installed, or areas with sparse populations where communication coverage is not available. However, with satellite communication, a single satellite can cover a large area, and since satellites orbit the Earth, theoretically every corner of the Earth can be covered by satellite communication. Second, satellite communication has significant social value. Satellite communication can provide coverage in remote mountainous areas and impoverished countries or regions at a relatively low cost, enabling people in these areas to enjoy advanced voice communication and mobile internet technologies, helping to narrow the digital divide with developed regions and promoting development in these areas. Third, satellite communication has a long range, and the cost does not increase significantly with increasing communication distance. Finally, satellite communication is highly stable and is not affected by natural disasters.

[0056] NTN technology can be combined with various communication systems. For example, NTN technology can be combined with NR systems to form an NR-NTN system. As another example, NTN technology can be combined with Internet of Things (IoT) systems to form an IoT-NTN system. As further examples, an IoT-NTN system can include NB-IoT-NTN systems and eMTC-NTN systems.

[0057] Figure 2 is a schematic diagram of the architecture of another communication system provided in an embodiment of this application.

[0058] As shown in Figure 2, the system includes a terminal device 201 and a satellite 202, which can communicate wirelessly. The network formed between the terminal device 201 and the satellite 202 can also be called an NTN. In the architecture of the communication system shown in Figure 2, the satellite 202 can function as a base station, and the terminal device 201 and the satellite 202 can communicate directly. In this system architecture, the satellite 202 can be referred to as a network device. In some embodiments of this application, the communication system may include multiple network devices 202, and the coverage area of ​​each network device 202 may include other numbers of terminal devices; this application does not limit this aspect.

[0059] Figure 3 is a schematic diagram of the architecture of another communication system provided in an embodiment of this application.

[0060] As shown in Figure 3, the system includes a terminal device 201, a satellite 202, and a base station 203. Wireless communication is possible between the terminal device 201 and the satellite 202, and communication is possible between the satellite 202 and the base station 203. The network formed by the terminal device 201, satellite 202, and base station 203 can also be called an NTN. In the architecture of the communication system shown in Figure 3, the satellite 202 may not have the function of a base station; communication between the terminal device 201 and the base station 203 requires relaying through the satellite 202. In this system architecture, the base station 203 can be referred to as a network device. In some embodiments of this application, the communication system may include multiple network devices 203, and the coverage area of ​​each network device 203 may include other numbers of terminal devices; this application does not limit this. The network device 203 may be the network device 120 in Figure 1.

[0061] It should be understood that the aforementioned satellite 202 includes, but is not limited to:

[0062] Satellites are categorized into Low-Earth Orbit (LEO), Medium-Earth Orbit (MEO), Geostationary Earth Orbit (GEO), and Highly Elliptical Orbit (HEO) satellites. Satellites can employ multiple beams to cover the ground; for example, a single satellite can generate dozens or even hundreds of beams to cover the ground. In other words, a single satellite beam can cover a ground area with a diameter of tens to hundreds of kilometers, ensuring satellite coverage and increasing the overall system capacity of the satellite communication system.

[0063] To ensure satellite coverage and improve the overall capacity of the satellite communication system, satellites use multi-beam coverage to cover the ground. A single satellite can generate dozens or even hundreds of beams to cover the ground; a single satellite beam can cover a ground area with a diameter of tens to hundreds of kilometers.

[0064] It should be noted that Figures 1 to 3 are merely illustrative examples illustrating the system to which this application applies. Of course, the methods shown in the embodiments of this application can also be applied to other systems. Furthermore, the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. It should also be understood that "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a related relationship. For example, A instructing B can mean that A directly instructs B, for example, B can be obtained through A; it can also mean that A indirectly instructs B, for example, A instructs C, B can be obtained through C; or it can mean that there is a related relationship between A and B. It should also be understood that "correspondence" mentioned in the embodiments of this application can indicate a direct or indirect correspondence between two things, or an related relationship between two things, or a relationship of instruction and being instructed, configuration and being configured, etc. It should also be understood that the "predefined" or "predefined rules" mentioned in the embodiments of this application can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices), and this application does not limit the specific implementation method. For example, predefined can refer to those defined in a protocol. It should also be understood that in the embodiments of this application, the "protocol" can refer to standard protocols in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems, and this application does not limit this.

[0065] To facilitate understanding of the technical solutions of the embodiments of this application, the relevant technologies of the embodiments of this application are described below. The following relevant technologies are optional solutions and can be combined with the technical solutions of the embodiments of this application in any way, and they all fall within the protection scope of the embodiments of this application.

[0066] In mobile communication systems, a series of independent channel bandwidths are typically defined to simplify terminal and network implementation. As shown in Figure 4, 5G communication systems define multiple channel bandwidths ranging from a minimum of 3MHz to a maximum of 100MHz. This avoids the implementation complexity caused by excessive bandwidth fragmentation, as increased bandwidth leads to increased testing complexity. However, on the other hand, the spectrum actually owned by an operator may not be exactly equal to a certain channel bandwidth or the sum of several channel bandwidths. This means that the operator can only actually use a portion of the available bandwidth. For example, assuming an operator owns 7MHz of spectrum, only 5MHz of bandwidth can be used in actual network deployment, resulting in a waste of 2MHz of spectrum. This leads to a waste of some spectrum.

[0067] With the continuous decommissioning of 2G, 3G, and 4G networks and the corresponding refarming of spectrum, future communication systems will inevitably face increasingly fragmented spectrum. Furthermore, there is a high probability that this spectrum cannot directly utilize the defined discrete bandwidths, leading to increasingly widespread spectrum waste. Therefore, it is necessary to consider how to optimize the definition of channel bandwidth to fully utilize the spectrum.

[0068] To facilitate understanding of the technical solutions of the embodiments of this application, the technical solutions of this application are described in detail below through specific embodiments. The above-mentioned related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0069] This application provides a resource determination method applied to a first device, as shown in FIG5, including:

[0070] S501, The first device determines a first bandwidth, which is related to a second bandwidth; wherein...

[0071] The first bandwidth includes the first channel bandwidth, and the second bandwidth includes the first useful channel bandwidth, wherein the first useful channel bandwidth is the maximum transmission bandwidth; or,

[0072] The first bandwidth includes the first useful channel bandwidth, and the second bandwidth includes the first channel bandwidth.

[0073] The first device can be a network device or a terminal device. The first device determines the first bandwidth based on the second bandwidth.

[0074] The first bandwidth and the second bandwidth are respectively one of the first channel bandwidth and the first useful channel bandwidth. The first channel bandwidth can be understood as the frequency range of signals that the channel can transmit, and the first useful channel bandwidth can be understood as the maximum transmission bandwidth used for signal transmission.

[0075] In this embodiment, the relationship between the first channel bandwidth and the first useful channel bandwidth is shown in Figure 6. The first channel bandwidth includes the first useful channel bandwidth and the guard bands on both sides. The first useful channel bandwidth includes multiple useful resource blocks (RBs), wherein the RBs in the first useful channel bandwidth can be referred to as useful RBs.

[0076] In this embodiment of the application, the size of RB can be fixed or determined based on the size of SCS. The size of SCS may include 15KHz, 30KHz, etc.

[0077] Based on the differences between the first device, the first bandwidth, and the second bandwidth, the resource determination method provided in this application embodiment can be implemented in scenarios including but not limited to the following:

[0078] Scenario 1: The first device is a network device, the first bandwidth is the first channel bandwidth, the second bandwidth is the first useful channel bandwidth, and the network device determines the first channel bandwidth based on the first useful channel bandwidth.

[0079] Scenario 2: The first device is a network device, the first bandwidth is the bandwidth of the first available channel, and the second bandwidth is the bandwidth of the first channel. In this case, the network device determines the first available channel bandwidth based on the first channel bandwidth.

[0080] Scenario 3: The first device is a terminal device, the first bandwidth is the first channel bandwidth, and the second bandwidth is the first useful channel bandwidth. In this case, the terminal device determines the first channel bandwidth based on the first useful channel bandwidth.

[0081] Scenario 4: The first device is a terminal device, the first bandwidth is the first useful channel bandwidth, and the second bandwidth is the first channel bandwidth. In this case, the terminal device determines the first useful channel bandwidth based on the first channel bandwidth.

[0082] In this embodiment of the application, the determined first bandwidth is related to the second bandwidth, wherein the first bandwidth (first channel bandwidth or first useful channel bandwidth) is allowed to adopt any spectral width, thereby realizing flexible bandwidth configuration of any width.

[0083] Understandably, the first channel bandwidth can refer to the channel bandwidth of the network device, and the relevant first useful channel bandwidth refers to the useful channel bandwidth of the network device; at this time, the useful channel bandwidth of the network device can be determined based on the channel bandwidth of the network device, or the channel bandwidth of the network device can be determined based on the useful channel bandwidth of the network device.

[0084] Understandably, the first channel bandwidth can refer to the channel bandwidth of the terminal device, and the relevant first useful channel bandwidth refers to the useful channel bandwidth of the terminal device; at this time, the useful channel bandwidth of the terminal device can be determined based on the channel bandwidth of the terminal device, or the channel bandwidth of the terminal device can be determined based on the useful channel bandwidth of the terminal device.

[0085] The channel bandwidth of the terminal device and the channel bandwidth of the network device can be the same or different.

[0086] The useful channel bandwidth of the terminal device and the useful channel bandwidth of the network device may be the same or different.

[0087] The useful channel bandwidth of a terminal device can be represented as N useful RBs, and the useful channel bandwidth of a network device can be represented as M useful RBs, where N and M are integers greater than or equal to 1, and N is less than or equal to M.

[0088] In this embodiment of the application, the first useful channel bandwidth is determined based on the first channel bandwidth, or the first channel bandwidth is determined based on the first useful channel bandwidth, thereby achieving flexible bandwidth configuration and avoiding the waste of spectrum resources caused by discrete channel bandwidth definitions.

[0089] In some embodiments, the first bandwidth is related to first information and the second bandwidth, wherein the first information includes one or more of the following: spectrum utilization, number of useful RBs, and guard band.

[0090] Spectrum utilization can be understood as the ratio of the first useful channel bandwidth to the first channel bandwidth. Specifically, the spectrum utilization of the first channel bandwidth can be expressed as the ratio of the first useful channel bandwidth to the first channel bandwidth, i.e., N*RB / CBW, where N is the number of useful RBs included in the first useful channel bandwidth.

[0091] When the first information includes spectrum utilization, the first channel bandwidth corresponding to the first useful channel bandwidth can be determined based on the spectrum utilization, or the first useful channel bandwidth corresponding to the first channel bandwidth can be determined based on the spectrum utilization. In this case, the first information may also include the number of useful RBs and / or guard bands.

[0092] If the first information includes the number of useful RBs, the first useful channel bandwidth corresponding to the first channel bandwidth can be determined based on the number of useful RBs. In this case, the first information may also include spectral efficiency and / or guard band.

[0093] When the first information includes a guard band, the first channel bandwidth corresponding to the first useful channel bandwidth can be determined based on the guard band, or the first useful channel bandwidth corresponding to the first channel bandwidth can be determined based on the guard band. In this case, the first information may also include spectral efficiency and / or the number of useful RBs.

[0094] In this embodiment of the application, the spectrum utilization, the number of useful RBs, and the guard band can be interchanged.

[0095] In one example, with a fixed first channel bandwidth, spectral efficiency can be converted into the number of useful RBs and the guard band.

[0096] In one example, with a fixed first useful channel bandwidth, spectral efficiency can be converted into guard band.

[0097] In one example, with the guard band fixed, the spectral efficiency can be converted into the number of useful RBs.

[0098] In some embodiments, the first information relates to one or more of the following:

[0099] Spectrum utilization rate 1, predefined spectrum utilization rate or predefined minimum spectrum utilization rate;

[0100] Spectrum utilization rate 2, first spectrum utilization rate and / or second spectrum utilization rate, wherein the first spectrum utilization rate is the spectrum utilization rate related to terminal equipment and the second spectrum utilization rate is the spectrum utilization rate related to network equipment.

[0101] In this embodiment of the application, if the first information includes spectrum utilization, the spectrum utilization may include one or more of spectrum utilization 1 and spectrum utilization 2.

[0102] Taking the first information including a predefined spectrum utilization rate or a predefined minimum spectrum utilization rate as an example, the first device determines the first bandwidth based on the predefined spectrum utilization rate or the predefined minimum spectrum utilization rate and the second bandwidth.

[0103] When the first useful channel bandwidth is determined based on the first channel bandwidth

[0104] In one example, the terminal device determines its useful channel bandwidth based on a predefined spectral utilization rate or a predefined minimum spectral utilization rate and the terminal device's channel bandwidth.

[0105] In one example, the network device determines its useful channel bandwidth based on a predefined spectral utilization rate or a predefined minimum spectral utilization rate and the network device's channel bandwidth.

[0106] When the first channel bandwidth is determined based on the first useful channel bandwidth

[0107] In one example, the terminal device determines its channel bandwidth based on a predefined spectral utilization rate or a predefined minimum spectral utilization rate and the terminal device's useful channel bandwidth.

[0108] In one example, the network device determines its channel bandwidth based on a predefined spectral utilization rate or a predefined minimum spectral utilization rate and the network device's useful channel bandwidth.

[0109] Taking the first information including a first spectrum utilization rate and / or a second spectrum utilization rate as an example, the first device determines a first bandwidth based on the first spectrum utilization rate and / or the second spectrum utilization rate. The first spectrum utilization rate is used to determine the useful channel bandwidth or channel bandwidth of the terminal device; the second spectrum utilization rate is used to determine the useful channel bandwidth or channel bandwidth of the network device.

[0110] When the first useful channel bandwidth is determined based on the first channel bandwidth

[0111] In one example, the terminal device determines its useful channel bandwidth based on a first spectrum utilization rate and the terminal device's channel bandwidth. In another example, the network device determines its useful channel bandwidth based on a first spectrum utilization rate and the terminal device's channel bandwidth. In yet another example, the network device determines its useful channel bandwidth based on a second spectrum utilization rate and the network device's channel bandwidth. In yet another example, the network device determines its useful channel bandwidth based on both the first and second spectrum utilization rates of the terminal device and the terminal device's channel bandwidth.

[0112] When the first channel bandwidth is determined based on the first useful channel bandwidth

[0113] In one example, the terminal device determines its channel bandwidth based on a first spectrum utilization rate and the terminal device's useful channel bandwidth. In another example, the network device determines the terminal device's channel bandwidth based on a first spectrum utilization rate and the terminal device's useful channel bandwidth. In yet another example, the network device determines the network device's channel bandwidth based on a second spectrum utilization rate and the network device's useful channel bandwidth. In yet another example, the network device determines the terminal device's channel bandwidth based on both the first and second spectrum utilization rates and the network device's useful channel bandwidth.

[0114] Taking the first information including a predefined minimum spectral utilization rate, and a first spectral utilization rate and / or a second spectral utilization rate as an example, the first device determines the first bandwidth based on the larger of the predefined minimum spectral utilization rate and the first spectral utilization rate and / or the second spectral utilization rate.

[0115] In this embodiment of the application, when the first information includes the number of useful RBs, the number of useful RBs can be determined based on one or more of spectrum utilization rate 1 and spectrum utilization rate 2, thereby converting the spectrum utilization rate into the number of useful RBs or a predefined minimum number of RBs.

[0116] The number of useful RBs determined based on spectrum utilization 1 can be understood as the predefined number of RBs, while the number of useful RBs determined based on spectrum utilization 2 can be understood as the number of RBs in terminal devices and / or the number of RBs in network devices.

[0117] In this embodiment of the application, when the first information includes a guard band, the guard band can be determined based on one or more of spectrum utilization rate 1 and spectrum utilization rate 2, thereby converting the spectrum utilization rate into a guard band.

[0118] The number of useful RBs determined based on spectrum utilization 1 can be understood as a predefined guard band or a predefined maximum guard band. The guard band determined based on spectrum utilization 2 can be understood as the guard band of terminal equipment and / or the guard band of network equipment.

[0119] In some embodiments, the first bandwidth includes a first useful channel bandwidth, and the second bandwidth includes the first channel bandwidth;

[0120] The predefined spectral efficiency or predefined minimum spectral efficiency applies to all possible channel bandwidths; or,

[0121] The predefined spectral efficiency or predefined minimum spectral efficiency applies to a first channel bandwidth range, which is one of a plurality of second channel bandwidth ranges. The first channel bandwidth range includes the first channel bandwidth. The predefined spectral efficiency or predefined minimum spectral efficiency applicable to different second channel bandwidth ranges may be different or the same; or...

[0122] The predefined spectrum utilization rate or predefined minimum spectrum utilization rate corresponds to the first channel bandwidth, which is one of a plurality of third channel bandwidths. Different third channel bandwidths correspond to different predefined spectrum utilization rates or predefined minimum spectrum utilization rates. The first channel bandwidth is the first channel bandwidth, or the first channel bandwidth is located between two adjacent third channel bandwidths and the second channel bandwidth is the smaller or larger bandwidth of the two adjacent third channel bandwidths.

[0123] In this embodiment of the application, the first bandwidth includes the first useful channel bandwidth, and the second bandwidth includes the first channel bandwidth. The first useful channel bandwidth is determined based on the first channel bandwidth, and the predefined spectrum utilization rate or the predefined minimum spectrum utilization rate is related to the first channel bandwidth.

[0124] In one case, the predefined spectral efficiency or predefined minimum spectral efficiency is the same for all possible channel bandwidths, and the first channel bandwidth is one of all possible channel bandwidths.

[0125] In one example, the predefined spectral utilization rate or the predefined minimum spectral utilization rate is 95%, and 95% applies to all possible channel bandwidths.

[0126] In this embodiment of the application, possible channel bandwidth can be understood as channel bandwidth that supports arbitrary spectral width, and all possible channel bandwidth can be understood as all configured channel bandwidths that support arbitrary spectral width.

[0127] In one scenario, there are multiple second channel bandwidth ranges, and different second channel bandwidth ranges have corresponding predefined spectral utilization rates or predefined minimum spectral utilization rates. The predefined spectral utilization rate or predefined minimum spectral utilization rate corresponding to the first channel bandwidth is the predefined spectral utilization rate or predefined minimum spectral utilization rate corresponding to the second channel bandwidth range to which the first channel bandwidth belongs.

[0128] In one example, there is a correspondence as shown in Table 1: channel bandwidth range 1 corresponds to spectrum utilization rate 1, channel bandwidth range 2 corresponds to spectrum utilization rate 2, channel bandwidth range 3 corresponds to spectrum utilization rate 3, and channel bandwidth range 4 corresponds to spectrum utilization rate 4; if the first channel bandwidth belongs to channel bandwidth range 2 (i.e., the first channel bandwidth range), then the first useful channel bandwidth in the first channel bandwidth is determined based on spectrum utilization rate 2.

[0129] Table 1. Predefined spectral utilization rate corresponding to the second channel bandwidth range.

[0130] In one example, there is a correspondence as shown in Table 2: channel bandwidth range 1 corresponds to minimum spectrum utilization 1, channel bandwidth range 2 corresponds to minimum spectrum utilization 2, channel bandwidth range 3 corresponds to minimum spectrum utilization 3, and channel bandwidth range 4 corresponds to minimum spectrum utilization 4; if the first channel bandwidth belongs to channel bandwidth range 3 (i.e., the first channel bandwidth range), then the first useful channel bandwidth in the first channel bandwidth is determined based on the minimum spectrum utilization 3.

[0131] Table 2. Predefined minimum spectral efficiency corresponding to the second channel bandwidth range.

[0132] In this embodiment of the application, the predefined spectral utilization rate or the predefined minimum spectral utilization rate corresponding to different second channel bandwidth ranges may be the same or different.

[0133] In one example, taking the correspondence shown in Table 1 as an example, spectrum utilization rate 1, spectrum utilization rate 2, spectrum utilization rate 3, and spectrum utilization rate 4 are all different.

[0134] In one example, taking the correspondence shown in Table 1 as an example, spectrum utilization rate 1 and spectrum utilization rate 2 are the same, while spectrum utilization rate 3 and spectrum utilization rate 4 are different and different from spectrum utilization rate 1.

[0135] In this embodiment, different spectral utilization rates or minimum spectral utilization rates are adopted for different channel bandwidth ranges, so as to take into account the potential low spectral utilization rate when the channel bandwidth becomes smaller, and to avoid the waste of spectrum resources.

[0136] In one scenario, there are multiple third channel bandwidths, and each third channel bandwidth has a corresponding predefined spectral efficiency or a predefined minimum spectral efficiency. For the first channel bandwidth, if the first channel bandwidth is one of the multiple third channel bandwidths (i.e., the second channel bandwidth), the predefined spectral efficiency or predefined minimum spectral efficiency corresponding to the first channel bandwidth is the same as the predefined spectral efficiency or predefined minimum spectral efficiency corresponding to the second channel bandwidth. If the first channel bandwidth is not equal to any of the multiple third channel bandwidths, the larger or smaller of the two third channel bandwidths closest to the first channel bandwidth is the second channel bandwidth, and the predefined spectral efficiency or predefined minimum spectral efficiency corresponding to the first channel bandwidth is the same as the predefined spectral efficiency or predefined minimum spectral efficiency corresponding to that second channel bandwidth.

[0137] In one example, the correspondence shown in Table 3 exists: channel bandwidth 1 corresponds to spectrum utilization rate 1, channel bandwidth 2 corresponds to spectrum utilization rate 2, channel bandwidth 3 corresponds to spectrum utilization rate 3, and channel bandwidth 4 corresponds to spectrum utilization rate 4. If the first channel bandwidth is channel bandwidth 2 (i.e., the first channel bandwidth), then the useful channel bandwidth within the channel bandwidth is determined based on spectrum utilization rate 2. If the first channel bandwidth lies between channel bandwidth 2 and channel bandwidth 3, then either channel bandwidth 2 or channel bandwidth 3 is determined as the second channel bandwidth. The first useful channel bandwidth within the first channel bandwidth is determined based on spectrum utilization rate 2 corresponding to channel bandwidth 2, or the first useful channel bandwidth within the first channel bandwidth is determined based on spectrum utilization rate 3 corresponding to channel bandwidth 3.

[0138] Table 3. Predefined spectral utilization corresponding to the third channel bandwidth.

[0139] In one example, the correspondence shown in Table 4 exists: channel bandwidth 1 corresponds to minimum spectral efficiency 1, channel bandwidth 2 corresponds to minimum spectral efficiency 2, channel bandwidth 3 corresponds to minimum spectral efficiency 3, and channel bandwidth 4 corresponds to minimum spectral efficiency 4. If the first channel bandwidth is channel bandwidth 2 (i.e., the second channel bandwidth), then the first useful channel bandwidth within the first channel bandwidth is determined based on the minimum spectral efficiency 2. If the first channel bandwidth lies between channel bandwidth 2 and channel bandwidth 3, then either channel bandwidth 2 or channel bandwidth 3 is determined as the second channel bandwidth. The first useful channel bandwidth within the first channel bandwidth is then determined based on the minimum spectral efficiency 2 corresponding to channel bandwidth 2, or based on the minimum spectral efficiency 3 corresponding to channel bandwidth 3.

[0140] Table 4. Illustration of the predefined minimum spectral efficiency corresponding to the third channel bandwidth

[0141] In this embodiment of the application, the predefined spectral utilization rate or the predefined minimum spectral utilization rate corresponding to different third channel bandwidths may be the same or different.

[0142] In one example, taking the correspondence shown in Table 3 as an example, the spectrum utilization rates 1, 2, 3, and 4 are all different.

[0143] In one example, taking the correspondence shown in Table 3 as an example, spectrum utilization rate 1 and spectrum utilization rate 2 are the same, spectrum utilization rate 3 and spectrum utilization rate 4 are different, and are different from spectrum utilization rate 1.

[0144] In this embodiment, different channel bandwidths correspond to different spectrum utilization rates or minimum spectrum utilization rates, thereby taking into account the potential for lower spectrum utilization rates when the channel bandwidth becomes smaller, and avoiding waste of spectrum resources.

[0145] In this embodiment, when the first channel bandwidth is not any of the multiple third channel bandwidths, the predefined spectral efficiency or predefined minimum spectral efficiency corresponding to the first channel bandwidth is the predefined spectral efficiency or predefined minimum spectral efficiency corresponding to the larger or smaller of the two third channel bandwidths closest to the first channel bandwidth. Where the predefined spectral efficiency or predefined minimum spectral efficiency corresponding to the first channel bandwidth is the larger of the two third channel bandwidths closest to the first channel bandwidth, the most useful channel bandwidth can be determined. Where the predefined spectral efficiency or predefined minimum spectral efficiency corresponding to the first channel bandwidth is the smaller of the two third channel bandwidths closest to the first channel bandwidth, it can adapt to scenarios where the potential spectral efficiency deteriorates when the channel bandwidth decreases.

[0146] In some embodiments, the first bandwidth includes a first channel bandwidth, and the second bandwidth includes a first useful channel bandwidth;

[0147] The predefined spectral utilization rate or minimum spectral utilization rate applies to all possible useful channel bandwidths; or,

[0148] The predefined spectral efficiency or predefined minimum spectral efficiency applies to a first useful channel bandwidth range, which is one of multiple second useful channel bandwidth ranges. The first useful channel bandwidth range includes the first useful channel bandwidth, and the predefined spectral efficiency or minimum spectral efficiency applies to different second useful channel bandwidth ranges; or...

[0149] The predefined spectrum utilization rate or predefined minimum spectrum utilization rate corresponds to the second useful channel bandwidth, which is one of a plurality of third useful channel bandwidths. Different third useful channel bandwidths correspond to different predefined spectrum utilization rates or predefined minimum spectrum utilization rates. The first useful channel bandwidth is the second useful channel bandwidth, or the first useful channel bandwidth is located between two adjacent third useful channel bandwidths and the second useful channel bandwidth is the smaller or larger bandwidth of the two adjacent third useful channel bandwidths.

[0150] In this embodiment of the application, the first bandwidth includes the first useful channel bandwidth, and the second bandwidth includes the first channel bandwidth. The first channel bandwidth is determined based on the first useful channel bandwidth, and the predefined spectrum utilization rate or the predefined minimum spectrum utilization rate is related to the first useful channel bandwidth.

[0151] In one case, the predefined spectral efficiency or predefined minimum spectral efficiency of all possible useful channel bandwidths is the same, and the first useful channel bandwidth is one of all possible useful channel bandwidths.

[0152] In one example, the predefined spectral utilization rate or the predefined minimum spectral utilization rate is 95%, and 95% applies to all possible useful channel bandwidths.

[0153] In this application embodiment, possible useful channel bandwidth can be understood as useful channel bandwidth that supports arbitrary spectral width, and all possible useful channel bandwidths can be understood as all configured useful channel bandwidths that support arbitrary spectral width.

[0154] In one case, there are multiple second useful channel bandwidth ranges, and different second useful channel bandwidth ranges have corresponding predefined spectral utilization rates or predefined minimum spectral utilization rates. The predefined spectral utilization rate or predefined minimum spectral utilization rate corresponding to the first useful channel bandwidth is the predefined spectral utilization rate or predefined minimum spectral utilization rate corresponding to the second useful channel bandwidth range to which the first useful channel bandwidth belongs.

[0155] In one example, there is a correspondence as shown in Table 5: useful channel bandwidth range 1 corresponds to spectrum utilization rate 1, useful channel bandwidth range 2 corresponds to spectrum utilization rate 2, useful channel bandwidth range 3 corresponds to spectrum utilization rate 3, and useful channel bandwidth range 4 corresponds to spectrum utilization rate 4; if the first useful channel bandwidth belongs to useful channel bandwidth range 2 (i.e., the first useful channel bandwidth range), then the first channel bandwidth corresponding to the first useful channel bandwidth is determined based on spectrum utilization rate 2.

[0156] Table 5. Predefined spectral utilization rate corresponding to the second useful channel bandwidth range.

[0157] In one example, there is a correspondence as shown in Table 2: useful channel bandwidth range 1 corresponds to minimum spectrum utilization 1, useful channel bandwidth range 2 corresponds to minimum spectrum utilization 2, useful channel bandwidth range 3 corresponds to minimum spectrum utilization 3, and useful channel bandwidth range 4 corresponds to minimum spectrum utilization 4; if the first useful channel bandwidth belongs to useful channel bandwidth range 3 (i.e., the first useful channel bandwidth range), then the first channel bandwidth corresponding to the first useful channel bandwidth is determined based on the minimum spectrum utilization 3.

[0158] Table 6. Illustration of the predefined minimum spectral efficiency corresponding to the bandwidth range of the third useful channel.

[0159] In this embodiment of the application, the predefined spectral utilization rate or the predefined minimum spectral utilization rate corresponding to different second useful channel bandwidth ranges may be the same or different.

[0160] In one example, taking the correspondence shown in Table 5 as an example, spectrum utilization rate 1, spectrum utilization rate 2, spectrum utilization rate 3, and spectrum utilization rate 4 are all different.

[0161] In one example, taking the correspondence shown in Table 5 as an example, spectrum utilization rate 1 and spectrum utilization rate 2 are the same, while spectrum utilization rate 3 and spectrum utilization rate 4 are different and different from spectrum utilization rate 1.

[0162] In this embodiment, different spectral utilization rates or minimum spectral utilization rates are adopted for different useful channel bandwidth ranges, so as to take into account the potential low spectral utilization rate when the channel bandwidth becomes smaller, and avoid the waste of spectrum resources.

[0163] In one scenario, there are multiple third useful channel bandwidths, and each third useful channel bandwidth has a corresponding predefined spectral efficiency or a predefined minimum spectral efficiency. For the first useful channel bandwidth, if the first useful channel bandwidth is one of the multiple third useful channel bandwidths (i.e., the second useful channel bandwidth), the predefined spectral efficiency or predefined minimum spectral efficiency is the predefined spectral efficiency or predefined minimum spectral efficiency corresponding to the second useful channel bandwidth. If the first useful channel bandwidth is not equal to any one of the multiple third useful channel bandwidths, the larger or smaller of the two third useful channel bandwidths closest to the first useful channel bandwidth is the second useful channel bandwidth, and the predefined spectral efficiency or predefined minimum spectral efficiency corresponding to the first useful channel bandwidth is the predefined spectral efficiency or predefined minimum spectral efficiency corresponding to that second useful channel bandwidth.

[0164] In one example, the correspondence shown in Table 7 exists: useful channel bandwidth 1 corresponds to spectrum utilization rate 1, useful channel bandwidth 2 corresponds to spectrum utilization rate 2, useful channel bandwidth 3 corresponds to spectrum utilization rate 3, and useful channel bandwidth 4 corresponds to spectrum utilization rate 4. If the first useful channel bandwidth is useful channel bandwidth 2 (i.e., the second useful channel bandwidth), then the first channel bandwidth corresponding to the first useful channel bandwidth is determined based on spectrum utilization rate 2. If the first useful channel bandwidth lies between useful channel bandwidth 2 and useful channel bandwidth 3, then either useful channel bandwidth 2 or useful channel bandwidth 3 is determined as the second useful channel bandwidth. The first channel bandwidth corresponding to the first useful channel bandwidth is determined based on spectrum utilization rate 2 corresponding to useful channel bandwidth 2, or the first channel bandwidth corresponding to the first useful channel bandwidth is determined based on spectrum utilization rate 3 corresponding to useful channel bandwidth 3.

[0165] Table 7. Predefined spectral utilization corresponding to the third useful channel bandwidth.

[0166] In one example, the correspondence shown in Table 8 exists: useful channel bandwidth 1 corresponds to minimum spectral efficiency 1, useful channel bandwidth 2 corresponds to minimum spectral efficiency 2, useful channel bandwidth 3 corresponds to minimum spectral efficiency 3, and useful channel bandwidth 4 corresponds to minimum spectral efficiency 4. If the first useful channel bandwidth is useful channel bandwidth 2 (i.e., the second useful channel bandwidth), then the first channel bandwidth corresponding to the first useful channel bandwidth is determined based on the minimum spectral efficiency 2. If the first useful channel bandwidth lies between useful channel bandwidth 2 and useful channel bandwidth 3, then useful channel bandwidth 2 or useful channel bandwidth 3 is determined as the second useful channel bandwidth. The first channel bandwidth corresponding to the first useful channel bandwidth is determined based on the minimum spectral efficiency 2 corresponding to useful channel bandwidth 2, or based on the minimum spectral efficiency 3 corresponding to useful channel bandwidth 3.

[0167] Table 8. Illustration of the predefined minimum spectral efficiency corresponding to the third useful channel bandwidth.

[0168] In this embodiment, when the first useful channel bandwidth is not any of the multiple third useful channel bandwidths, the predefined spectral efficiency or predefined minimum spectral efficiency corresponding to the first useful channel bandwidth is the predefined spectral efficiency or predefined minimum spectral efficiency corresponding to the larger or smaller of the two third useful channel bandwidths closest to the first useful channel bandwidth. Specifically, when the predefined spectral efficiency or predefined minimum spectral efficiency corresponding to the first useful channel bandwidth is the larger of the two third useful channel bandwidths closest to the first useful channel bandwidth, it is possible to determine a minimum useful channel bandwidth that can adapt to scenarios where the potential spectral efficiency deteriorates when the channel bandwidth decreases. When the predefined spectral efficiency or predefined minimum spectral efficiency corresponding to the first useful channel bandwidth is the smaller of the two third useful channel bandwidths closest to the first useful channel bandwidth, it is possible to determine a minimum channel bandwidth based on a fixed useful channel bandwidth, thereby improving spectral efficiency.

[0169] In some embodiments, the first spectrum utilization rate is the spectrum utilization rate of the terminal device determined by the network device; or...

[0170] The first spectrum utilization rate is the maximum spectrum utilization rate supported by the terminal device.

[0171] The spectrum utilization rate of the terminal device determined by the network device can be understood as the spectrum utilization rate configured by the network device for the terminal device.

[0172] Taking the first spectrum utilization rate as the spectrum utilization rate of the terminal device determined by the network device as an example, the network device determines the spectrum utilization rate of the terminal device. It can determine the channel bandwidth or the useful channel bandwidth of the terminal device based on the determined spectrum utilization rate of the terminal device, or it can send the determined spectrum utilization rate of the terminal device to the terminal device. The terminal device determines the channel bandwidth or the useful channel bandwidth of the terminal device based on the spectrum utilization rate of the terminal device determined by the network device.

[0173] The maximum spectrum utilization rate supported by the terminal device can be understood as the maximum spectrum utilization rate that the terminal device can satisfy, taking into account its actual capabilities.

[0174] Taking the first spectrum utilization rate as the maximum spectrum utilization rate supported by the terminal device as an example, the terminal device can determine the channel bandwidth or the useful channel bandwidth of the terminal device based on the maximum spectrum utilization rate supported by the terminal device; or, the terminal device can send the maximum spectrum utilization rate supported by the terminal device to the network device, and the network device can determine the channel bandwidth or the useful channel bandwidth of the terminal device based on the maximum spectrum utilization rate supported by the terminal device.

[0175] When the first spectrum utilization rate is the spectrum utilization rate of the terminal device determined by the network device, the number of useful RBs or guard bands converted by the first spectrum utilization rate can be understood as the number of useful RBs or guard bands of the terminal device determined by the network device.

[0176] When the first spectrum utilization rate is the maximum spectrum utilization rate supported by the terminal device, the number of useful RBs or guard bands converted from the first spectrum utilization rate can be understood as the maximum number of useful RBs or the minimum guard bands supported by the terminal device.

[0177] In some embodiments, as shown in FIG7, the method further includes:

[0178] S701, the first device receives second information sent by the second device, the second information being used to determine the first spectrum utilization rate.

[0179] If the first information includes a first spectrum utilization rate, the first device receives the second information sent by the second device and determines the first spectrum utilization rate based on the second information.

[0180] Taking the first device as the terminal device and the second device as the network device as an example, the first spectrum utilization rate is the spectrum utilization rate of the terminal device determined by the network device. The terminal device receives the second information sent by the network device and determines the spectrum utilization rate of the terminal device based on the second information.

[0181] Taking the first device as a network device and the second device as a terminal device as an example, the first spectrum utilization rate is the maximum spectrum utilization rate supported by the terminal device. The network device receives the second information sent by the terminal device and determines the maximum spectrum utilization rate supported by the terminal device based on the second information.

[0182] In some embodiments, the second information may also be used to determine one or more of the following: whether flexible bandwidth is enabled, whether the terminal device supports flexible bandwidth, and the frequency bands that the terminal device supports for flexible bandwidth.

[0183] In some embodiments, based on the interaction of FIG7, the second information includes one or more of the following:

[0184] The value of the first spectrum utilization rate;

[0185] A first quantity or a second quantity, wherein the first quantity is the number of useful RBs configured by the network device for the terminal device, and the second quantity is the maximum number of useful RBs supported by the terminal device;

[0186] The third information is used to determine a first protection band or a second protection band, wherein the first protection band is the protection band configured by the network device for the terminal device, and the second protection band is the minimum protection band supported by the terminal device.

[0187] In this embodiment of the application, the network device can send the first channel bandwidth and the determined spectrum utilization of the terminal device to the terminal device. The terminal device determines one or more of the supported maximum spectrum utilization, the maximum number of useful RBs, and the minimum guard band based on the first channel bandwidth and the spectrum utilization. The terminal device sends second information to the network device based on the determined maximum spectrum utilization, the maximum number of useful RBs, and the minimum guard band.

[0188] In some embodiments, the third information includes one or more of the following:

[0189] The size of the first protective strip or the size of the second protective strip;

[0190] The first indication information is the index of the first protective strip or the second protective strip.

[0191] Understandably, the methods of sending third-party information include one or more of the following:

[0192] Sending Method 1: Directly send the size of the first guard band or the size of the second guard band.

[0193] Method 2: Send the first indication information based on a smaller number of bits;

[0194] For transmission method two, a set of spectrum utilization candidate values ​​can be predefined, and different spectrum utilization candidate values ​​correspond to different indices. The first device determines the spectrum utilization candidate value corresponding to the received index in the set of spectrum utilization candidate values ​​as the first spectrum utilization.

[0195] In some embodiments, when the maximum spectral efficiency supported by the terminal device differs across different frequency bands, and the terminal device sends second information indicating the maximum spectral efficiency it supports to the network device, it may send information about the frequency band corresponding to the maximum spectral efficiency or send the second information on the frequency band corresponding to the maximum spectral efficiency to the network device, thereby enabling the network device to determine the frequency band corresponding to the maximum spectral efficiency.

[0196] In some embodiments, the first information includes: a third protective band, which includes a predefined protective band, a predefined minimum protective band, or a predefined maximum protective band.

[0197] In this embodiment of the application, the first device may determine the first bandwidth based on the third guard band and the second bandwidth.

[0198] In one example, the first device determines the first useful channel bandwidth based on the third guard band and the first channel bandwidth.

[0199] Taking the first device as a terminal device as an example, after the network device configures a first channel bandwidth for the terminal device, the terminal device can obtain the corresponding first useful channel bandwidth; the determined first useful channel bandwidth makes the guard band meet the third guard band.

[0200] In one example, the first device determines the first channel bandwidth based on the third guard band and the first useful channel bandwidth.

[0201] Taking the first device as a terminal device as an example, after the network device configures a first useful channel bandwidth for the terminal device, the terminal device can obtain the corresponding first channel bandwidth; the determined first channel bandwidth makes the protection band meet the third protection band.

[0202] In this embodiment of the application, the determined first bandwidth makes the guard band satisfy the third guard band.

[0203] For example, if the third bandwidth is a predefined guard band, then the first useful channel bandwidth should ensure that the remaining guard band size is the same as the predefined guard band. For example, if the third bandwidth is a predefined minimum guard band, then the first useful channel bandwidth should ensure that the remaining guard band size is greater than the predefined minimum guard band. For example, if the third bandwidth is a predefined maximum guard band, then the first useful channel bandwidth should ensure that the remaining guard band size is less than the predefined maximum guard band.

[0204] In this embodiment of the application, the size of the third guard band can be expressed in units of RB as one or more RBs, or in units of Hz as the bandwidth of the guard band.

[0205] In some embodiments, the second bandwidth includes the first channel bandwidth;

[0206] The third guard band applies to all possible channel bandwidths; or,

[0207] The third protection band applies to a first channel bandwidth range, which is one of multiple second channel bandwidth ranges. The first channel bandwidth range includes the first channel bandwidth, and the third protection bands applicable to different second channel bandwidth ranges are different; or...

[0208] The third protection band corresponds to the second channel bandwidth, which is one of a plurality of third channel bandwidths. Different third channel bandwidths correspond to different third protection bands. The first channel bandwidth is the second channel bandwidth, or the first channel bandwidth is located between two adjacent third channel bandwidths and the second channel bandwidth is the smaller or larger bandwidth of the two adjacent third channel bandwidths.

[0209] In this embodiment of the application, the first bandwidth includes the first useful channel bandwidth, the second bandwidth includes the first channel bandwidth, the first useful channel bandwidth is determined based on the first channel bandwidth, and the size of the third guard band is related to the first channel bandwidth.

[0210] In one case, the third guard band is the same for all possible channel bandwidths, and the first channel bandwidth is one of all possible channel bandwidths.

[0211] In one example, the predefined guard band is 1 RB (in RB) or 142.5 kHz (in Hz), and 1 RB or 142.5 kHz applies to all possible channel bandwidths. Here, we take an SCS of 15 kHz as an example; of course, the SCS can also be other values.

[0212] In one scenario, there are multiple second channel bandwidth ranges, and different second channel bandwidth ranges have corresponding third guard bands. The third guard band corresponding to the first channel bandwidth is the second channel bandwidth range to which the first channel bandwidth belongs, i.e., the third guard band corresponding to the first channel bandwidth range.

[0213] In one example, there is a correspondence: channel bandwidth range 1 corresponds to the third guard band 1, channel bandwidth range 2 corresponds to the third guard band 2, channel bandwidth range 3 corresponds to the third guard band 3, and channel bandwidth range 4 corresponds to the third guard band 4; if the first channel bandwidth belongs to channel bandwidth range 2 (i.e., the first channel bandwidth range), then the first useful channel bandwidth in the first channel bandwidth is determined based on the third guard band 2.

[0214] In one scenario, there are multiple third channel bandwidths, and different third channel bandwidths have corresponding third guard bands. For the first channel bandwidth, if the first channel bandwidth is one of the multiple third channel bandwidths, i.e., the second channel bandwidth, the third guard band is the third guard band corresponding to the second channel bandwidth. If the first channel bandwidth is not any of the multiple third channel bandwidths, the larger or smaller third channel bandwidth among the two third channel bandwidths closest to the channel bandwidth is the second channel bandwidth, and the third guard band is the third guard band corresponding to that second channel bandwidth.

[0215] In one example, there is a correspondence: channel bandwidth 1 corresponds to third guard band 1, channel bandwidth 2 corresponds to third guard band 2, channel bandwidth 3 corresponds to third guard band 3, and channel bandwidth 4 corresponds to third guard band 4. If the first channel bandwidth is channel bandwidth 2 (i.e., the second channel bandwidth), then the first useful channel bandwidth within the first channel bandwidth is determined based on third guard band 2. If the first channel bandwidth lies between channel bandwidth 2 and channel bandwidth 3, then either channel bandwidth 2 or channel bandwidth 3 is determined as the second channel bandwidth. The first useful channel bandwidth within the first channel bandwidth is then determined based on third guard band 2 corresponding to channel bandwidth 2, or based on third guard band 3 corresponding to channel bandwidth 3.

[0216] In some embodiments, the second bandwidth includes the first useful channel bandwidth;

[0217] The third guard band applies to all possible useful channel bandwidths; or...

[0218] The third guard band applies to a first useful channel bandwidth range, which is one of multiple second useful channel bandwidth ranges. The first useful channel bandwidth range includes the first useful channel bandwidth, and a third guard band applies to different second useful channel bandwidth ranges; or...

[0219] The third guard band corresponds to the second useful channel bandwidth, which is one of a plurality of third useful channel bandwidths. Different third useful channel bandwidths correspond to different third guard bands. The first useful channel bandwidth is the second useful channel bandwidth, or the first useful channel bandwidth is located between two adjacent third useful channel bandwidths and the second useful channel bandwidth is the smaller or larger bandwidth of the two adjacent third useful channel bandwidths.

[0220] In this embodiment of the application, the first bandwidth includes the first channel bandwidth, and the second bandwidth includes the first useful channel bandwidth. The first channel bandwidth is determined based on the first useful channel bandwidth, and the size of the third guard band is related to the first useful channel bandwidth.

[0221] In one case, the third guard band is the same for all possible useful channel bandwidths, and the first useful channel bandwidth is one of all possible useful channel bandwidths.

[0222] In one example, the predefined guard band is 1RB or 142.5kHz, and 1RB or 142.5kHz is applicable to all possible useful channel bandwidths.

[0223] In one case, there are multiple second useful channel bandwidth ranges, and different second useful channel bandwidth ranges have corresponding third guard bands. The third guard band corresponding to the first useful channel bandwidth is the second useful channel bandwidth range to which the first useful channel bandwidth belongs, i.e., the third guard band corresponding to the first useful channel bandwidth range.

[0224] In one example, there is a correspondence: useful channel bandwidth range 1 corresponds to third guard band 1, useful channel bandwidth range 2 corresponds to third guard band 2, useful channel bandwidth range 3 corresponds to third guard band 3, and useful channel bandwidth range 4 corresponds to third guard band 4; if the first useful channel bandwidth belongs to useful channel bandwidth range 2 (i.e., the first useful channel bandwidth range), then the first channel bandwidth corresponding to the first useful channel bandwidth is determined based on the third guard band 2.

[0225] In one scenario, there are multiple third useful channel bandwidths, and different third useful channel bandwidths have corresponding third guard bands. For the first useful channel bandwidth, if the first useful channel bandwidth is one of the multiple third useful channel bandwidths, i.e., the second useful channel bandwidth, the third guard band is the third guard band corresponding to the second useful channel bandwidth. If the first useful channel bandwidth is not any of the multiple third useful channel bandwidths, the larger or smaller third useful channel bandwidth among the two third useful channel bandwidths closest to the first useful channel bandwidth is the second useful channel bandwidth, and the third guard band is the third guard band corresponding to the second useful channel bandwidth.

[0226] In one example, a correspondence exists: useful channel bandwidth 1 corresponds to third guard band 1, useful channel bandwidth 2 corresponds to third guard band 2, useful channel bandwidth 3 corresponds to third guard band 3, and useful channel bandwidth 4 corresponds to third guard band 4. If the first useful channel bandwidth is useful channel bandwidth 2 (i.e., the second useful channel bandwidth), then the first channel bandwidth corresponding to this first useful channel bandwidth is determined based on third guard band 2. If the first useful channel bandwidth lies between useful channel bandwidth 2 and useful channel bandwidth 3, then either useful channel bandwidth 2 or useful channel bandwidth 3 is determined as the second channel bandwidth. The first channel bandwidth corresponding to the first useful channel bandwidth is then determined based on third guard band 2 corresponding to useful channel bandwidth 2, or based on third guard band 3 corresponding to useful channel bandwidth 3.

[0227] In some embodiments, the first channel bandwidth includes a fourth channel bandwidth and / or a fifth channel bandwidth, and the first useful channel bandwidth includes a fourth useful channel bandwidth and / or a fifth useful channel bandwidth;

[0228] The fourth channel bandwidth is the channel bandwidth of the terminal device;

[0229] The fifth channel bandwidth is the channel bandwidth of the network device;

[0230] The fourth useful channel bandwidth is the useful channel bandwidth within the fourth channel bandwidth;

[0231] The fifth useful channel bandwidth is the useful channel bandwidth within the fifth channel bandwidth.

[0232] In the case where the first bandwidth includes the first useful channel bandwidth and the second bandwidth includes the first channel bandwidth, i.e., the first useful channel bandwidth is determined based on the first channel bandwidth.

[0233] In one example, the terminal device determines the fourth useful channel bandwidth based on the fourth channel bandwidth. In another example, the network device determines the fifth useful channel bandwidth based on the fifth channel bandwidth. In yet another example, the network device determines the fourth useful channel bandwidth based on the fourth channel bandwidth and the fifth useful channel bandwidth based on the fifth channel bandwidth.

[0234] In the case where the first bandwidth includes the first channel bandwidth and the second bandwidth includes the first useful channel bandwidth, i.e., the first channel bandwidth is determined based on the first useful channel bandwidth.

[0235] In one example, the terminal device determines the fourth channel bandwidth based on the fourth useful channel bandwidth. In another example, the network device determines the fifth channel bandwidth based on the fifth useful channel bandwidth. In yet another example, the network device determines both the fourth and fifth channel bandwidths based on the fourth and fifth useful channel bandwidths.

[0236] In some embodiments, the fourth channel bandwidth and the fifth channel bandwidth are the same, while the fourth useful channel bandwidth and the fifth useful channel bandwidth are different.

[0237] In some embodiments, the fourth useful channel bandwidth is related to the first spectrum utilization rate, and the fifth useful channel bandwidth is related to the second spectrum utilization rate, wherein the first spectrum utilization rate is less than the second spectrum utilization rate.

[0238] The first spectrum utilization rate is less than the second spectrum utilization rate, and the fourth useful channel bandwidth is less than the fifth useful channel bandwidth.

[0239] Here, the number of useful RBs included in the fourth useful channel bandwidth is less than the number of useful RBs included in the fifth useful channel bandwidth.

[0240] In this embodiment, the hardware capabilities of the network device are stronger than those of the terminal device, thus the network device has higher spectrum utilization and can have a larger useful channel bandwidth.

[0241] In some embodiments, the first device is a network device, and the four useful channel bandwidths include: the fourth useful channel bandwidth and the fifth useful channel bandwidth; the resource determination method provided in this application embodiment further includes:

[0242] The network device aligns the edges of the fourth channel bandwidth with the edges of the fifth channel bandwidth; or,

[0243] The network device aligns the edges of the fourth useful channel bandwidth with the edges of the fifth useful channel bandwidth.

[0244] The edges of the fourth channel bandwidth and the fifth channel bandwidth are aligned, as shown in Figure 8. The fourth channel bandwidth 81 includes a useful channel bandwidth 811, a guard band 812 and a guard band 813, and the fifth channel bandwidth 82 includes a useful channel bandwidth 821, a guard band 822 and a guard band 823. The edges of the fourth channel bandwidth 81 and the fifth channel bandwidth 82 are aligned.

[0245] In this embodiment of the application, the edge of the channel bandwidth can be understood as the minimum frequency of the channel bandwidth or the center frequency of the SCS with the smallest frequency in the channel bandwidth, i.e., the minimum SCS center frequency.

[0246] In one example, the edge of the channel bandwidth is the minimum frequency of the channel bandwidth. Aligning the edge of the fourth channel bandwidth with the edge of the fifth channel bandwidth can be understood as aligning the minimum frequency of the fourth channel bandwidth with the minimum frequency of the fifth channel bandwidth.

[0247] In one example, the edge of the channel bandwidth is the center frequency of the SCS with the lowest frequency in the channel bandwidth. Aligning the edge of the fourth channel bandwidth with the edge of the fifth channel bandwidth can be understood as aligning the center frequency of the SCS with the lowest frequency in the fourth channel bandwidth with the center frequency of the SCS with the lowest frequency in the fifth channel bandwidth.

[0248] In some embodiments, aligning the edges of the fourth channel bandwidth and the fifth channel bandwidth of the network device includes: the network device adjusting the guard band of the fourth channel bandwidth and / or the guard band of the fifth channel bandwidth.

[0249] Here, if the edges of the fourth channel bandwidth and the fifth channel bandwidth are not aligned, the guard band of the fourth channel bandwidth and / or the guard band of the fifth channel bandwidth can be adjusted to align the edges of the fourth channel bandwidth and the fifth channel bandwidth.

[0250] Adjustments to the guard band can be made by either increasing or decreasing it. Increasing the guard band may reduce the available channel bandwidth. Decreasing the guard band may increase the available channel bandwidth.

[0251] In some embodiments, where the network device aligns the edges of the fourth channel bandwidth and the fifth channel bandwidth, the resource determination method provided in this application further includes: the network device aligning the resource grids of useful RBs in the fourth useful channel bandwidth and the useful RBs in the fifth useful channel bandwidth.

[0252] A resource grid can be understood as a grid of frequency domain resources, including RBs or subcarrier spacing (SCS).

[0253] In one example, based on Figure 8, the resource grid alignment of useful RBs in the fourth useful channel bandwidth and useful RBs in the fifth useful channel bandwidth can be shown in Figure 9.

[0254] In this embodiment, the resource grid alignment of the terminal device and the network device's useful RBs can be ensured while ensuring that the channel bandwidth of the terminal device does not exceed the channel bandwidth of the network device.

[0255] In some embodiments, the network device aligns the resource grids of useful RBs in the fourth useful channel bandwidth and useful RBs in the fifth useful channel bandwidth, including:

[0256] The network device adjusts the third and / or fourth quantities;

[0257] The third quantity is the number of useful RBs or SCSs included in the fourth useful channel bandwidth;

[0258] The fourth quantity is the number of useful RBs or SCSs included in the fifth useful channel bandwidth.

[0259] Network devices can reduce or increase the number of RBs or SCSs in the useful channel bandwidth of terminal devices or network devices by one or more.

[0260] In the case of reducing the RB or SCS of the useful channel bandwidth, the reduced RB or SCS can be used for adjustment of the guard band, thereby achieving resource grid alignment.

[0261] The edges of the fourth useful channel bandwidth and the fifth useful channel bandwidth are aligned, as shown in Figure 10. The fourth channel bandwidth 81 includes a useful channel bandwidth 811, a guard band 812 and a guard band 813, and the fifth channel bandwidth 82 includes a useful channel bandwidth 821, a guard band 822 and a guard band 823. The edges of the fourth useful channel bandwidth 811 and the fifth useful channel bandwidth 821 are aligned.

[0262] The edge of the useful channel bandwidth can be understood as the minimum frequency of the useful channel bandwidth or the center frequency of the SCS with the smallest frequency in the useful channel bandwidth, i.e., the minimum SCS center frequency.

[0263] In some embodiments, the first device is a network device, and the resource determination method provided in this application further includes:

[0264] The network device sends a fourth piece of information to the terminal device, the fourth piece of information being used to indicate the second bandwidth.

[0265] The terminal device determines the second bandwidth based on the received fourth information, and determines the first bandwidth based on the second bandwidth.

[0266] Optionally, the second bandwidth includes the fourth channel bandwidth or the fourth useful channel bandwidth.

[0267] In some embodiments, the first device is a terminal device, and the resource determination method provided in this application further includes:

[0268] The terminal device receives the fifth information sent by the network device, the fifth information being used to indicate the first bandwidth.

[0269] After determining the first bandwidth based on the second bandwidth, the network device sends fifth information indicating the first bandwidth to the terminal device, and the terminal device determines the first bandwidth determined by the network device based on the fifth information.

[0270] Optionally, the first bandwidth includes the fourth channel bandwidth or the fourth useful channel bandwidth.

[0271] The resource determination method provided in this application is applied to a wireless communication system including terminal devices and network devices, and may include one or more of the following:

[0272] Scenario 1: Terminal devices and network devices determine their own first bandwidth based on a predefined spectrum utilization rate or a predefined minimum utilization rate;

[0273] Scenario 2: The network device determines the spectrum utilization rate of the terminal device and sends the determined spectrum utilization rate to the terminal device. The terminal device determines its own first bandwidth based on the determined spectrum utilization rate and the second bandwidth of the terminal device.

[0274] If the terminal device does not support the spectrum utilization rate determined by the network device, the determination of the first bandwidth may not be performed.

[0275] Scenario 3: The terminal device reports its maximum supported spectrum utilization to the network device, and the network device determines its own first bandwidth based on the received maximum supported spectrum utilization of the terminal device and the second bandwidth of the terminal device.

[0276] In cases 2 and 3, the network device can determine its own first bandwidth based on the second spectrum utilization and the second bandwidth of the network device.

[0277] In the resource determination method provided in this application embodiment, for a terminal device, as shown in Figure 11, it includes:

[0278] S1101. The terminal device determines the first bandwidth of the terminal device based on the second bandwidth of the terminal device.

[0279] Based on Figure 11, the terminal device can receive fourth information sent by the network device, which is used to indicate the second bandwidth of the terminal device.

[0280] Based on Figure 11, the terminal device can receive first information sent by the network device. The first information is used to determine a first spectrum utilization rate, which is the spectrum utilization rate of the terminal device determined by the network device.

[0281] In the resource determination method provided in this application embodiment, for network devices, it may include, as shown in Figure 12:

[0282] S1201. The network device determines the first bandwidth of the network device based on the second bandwidth of the network device.

[0283] In the resource determination method provided in this application embodiment, for network devices, as shown in Figure 13, it includes:

[0284] S1301. The network device can determine the first bandwidth of the terminal device based on the second bandwidth of the terminal device.

[0285] Based on Figure 13, the network device can receive third information sent by the terminal device, the third information being used to determine a first spectrum utilization rate, the first spectrum utilization rate being the maximum spectrum utilization rate supported by the terminal device.

[0286] Based on Figure 13, the network device sends a fifth piece of information to the terminal device, which is used to indicate the first bandwidth of the terminal device.

[0287] The methods shown in Figure 12 and Figure 13 can be implemented individually or in combination without conflict.

[0288] For the case where the first bandwidth includes the first channel bandwidth and the second bandwidth includes the first useful channel bandwidth.

[0289] In some embodiments, the first device determines the second bandwidth by: the first device determining a fifth quantity related to the first information and the first channel bandwidth, the fifth quantity being the number of useful RBs included in the first useful channel bandwidth.

[0290] The fifth quantity and the size of RB determine the first useful channel bandwidth, and the bandwidth other than the first useful channel bandwidth in the first channel bandwidth is the guard band.

[0291] In some embodiments, the fifth quantity is the result of rounding up or down the first value; the first value is determined based on the first channel bandwidth and the first information.

[0292] Taking the first piece of information, including the spectrum utilization rate α, as an example, the first value is α*CBW / RB, and the fifth quantity N can be: floor(α*CBW / RB) or ceil(α*CBW / RB), where floor represents rounding down and ceil represents rounding up. α can be a predetermined spectrum utilization rate, a predefined minimum spectrum utilization rate, a first spectrum utilization rate, or a second spectrum utilization rate.

[0293] In some embodiments, the second bandwidth includes the first channel bandwidth, which is one of the possible channel bandwidths within the third channel bandwidth range.

[0294] The third channel bandwidth range can be understood as the bandwidth range used by the flexible bandwidth, and the flexible bandwidth applies to all possible channel bandwidths within the third channel bandwidth range.

[0295] In this embodiment of the application, if the first device determines that the first channel bandwidth is a possible channel bandwidth included in the third channel bandwidth range, it can determine that the first channel bandwidth supports flexible bandwidth configuration of arbitrary width; otherwise, the first channel bandwidth does not support flexible bandwidth configuration of arbitrary width.

[0296] In this embodiment of the application, the possible channel bandwidth can be understood as a channel bandwidth that supports flexible bandwidth configuration of arbitrary width.

[0297] For a channel bandwidth that supports flexible bandwidth configuration of arbitrary width, the first device can determine the first available channel bandwidth in the first channel bandwidth based on the method shown in Figure 5.

[0298] In some embodiments, the third channel bandwidth range is determined based on the minimum channel bandwidth and the maximum channel bandwidth; or, the third channel bandwidth range is determined based on the predefined sixth channel bandwidth and the predefined seventh channel bandwidth.

[0299] Taking the determination of the third channel bandwidth range based on the minimum and maximum channel bandwidth as an example, a minimum channel bandwidth (Min CBW) and a maximum channel bandwidth (Max CBW) are defined. Between these two bandwidths, flexible bandwidth configuration of any width can be supported.

[0300] In some embodiments, the third channel bandwidth range is determined based on a minimum channel bandwidth and a maximum channel bandwidth, and the possible channel bandwidth is determined based on the minimum channel bandwidth and a first step length, wherein the first step length is RB or a set third bandwidth.

[0301] The possible channel bandwidth defined between the minimum and maximum channel bandwidths is the channel bandwidth that increases in steps of one step size based on the minimum channel bandwidth. In other words, among two adjacent possible channel bandwidths, the preceding possible channel bandwidth is smaller than the following possible channel bandwidth by one step size. The minimum and maximum channel bandwidths are two separate possible channel bandwidths.

[0302] In this embodiment of the application, taking the first step length as RB as an example, the possible channel bandwidths are shown in Table 9.

[0303] Table 9. Examples of Channel Bandwidth Definition Methods

[0304] In this embodiment of the application, Min CBW can be 3MHz, 5MHz, and Max CBW can be 200MHz, 300MHz, etc. In this embodiment of the application, the values ​​of Min CBW and Max CBW are not limited.

[0305] Taking the third channel bandwidth range determined based on the predefined sixth and seventh channel bandwidths as an example, the predefined sixth and seventh channel bandwidths allow for flexible bandwidth configurations of arbitrary width between these two bandwidths. It can be understood that the third channel bandwidth range determined by the sixth and seventh channel bandwidths includes only a portion of the channel bandwidth, meaning that flexible bandwidth configurations of arbitrary width are only used within a portion of the bandwidth.

[0306] In this embodiment of the application, the sixth channel bandwidth can be referred to as the minimum channel bandwidth of the bandwidth range that supports flexible bandwidth configuration, and the seventh channel bandwidth can be referred to as the maximum channel bandwidth of the bandwidth range that supports flexible bandwidth configuration.

[0307] In some embodiments, the third channel bandwidth range is determined based on a predefined sixth channel bandwidth and a predefined seventh channel bandwidth, and the possible channel bandwidth is determined based on the sixth channel bandwidth and a second step size, where the second step size is RB or a set fourth bandwidth.

[0308] The possible channel bandwidth defined between the sixth and seventh channel bandwidths is the channel bandwidth that increases in steps of the sixth channel bandwidth with a second step size. In other words, among two adjacent possible channel bandwidths, the first possible channel bandwidth is less than the second possible channel bandwidth by the second step size. The sixth and seventh channel bandwidths are two possible channel bandwidths.

[0309] In this embodiment of the application, taking the second step size as RB as an example, the possible channel bandwidths are shown in Table 10, where the sixth channel bandwidth can be identified as CWB1 and the seventh channel bandwidth can be identified as CWB2.

[0310] Table 10. Examples of Channel Bandwidth Definition Methods

[0311] In this embodiment of the application, the value of CWB1 can be greater than the value of Min CBW, and the value of CWB2 can be less than the value of Max CBW. In this embodiment of the application, the values ​​of CBW1 and CBW2 are not limited.

[0312] For the case where the first bandwidth includes the first useful channel bandwidth and the second bandwidth includes the first channel bandwidth.

[0313] In some embodiments, the first device determines the second bandwidth, including:

[0314] The first device determines the first channel bandwidth based on the first useful channel bandwidth and spectrum utilization.

[0315] Taking the first piece of information, including the spectrum utilization rate α, as an example, the channel bandwidth CBW has a first value of N*RB / α, where N*RB is the available channel bandwidth. Here, α can be a predetermined spectrum utilization rate, a predefined minimum spectrum utilization rate, a first spectrum utilization rate, or a second spectrum utilization rate.

[0316] In some embodiments, the second bandwidth includes the first useful channel bandwidth, which is one of the possible useful channel bandwidths within the range of the third useful channel bandwidth.

[0317] The third useful channel bandwidth range can be understood as the bandwidth range used by the flexible bandwidth, and the flexible bandwidth applies to the possible useful channel bandwidth within the third useful channel bandwidth range.

[0318] In this embodiment of the application, if the first device determines that the first useful channel bandwidth is one of the possible useful channel bandwidths included in the range of the third useful channel bandwidth, it determines that the first useful channel bandwidth can support flexible bandwidth configuration of arbitrary width; otherwise, the first useful channel bandwidth does not support flexible bandwidth configuration of arbitrary width.

[0319] In the embodiments of this application, the possible useful channel bandwidth can be understood as the useful channel bandwidth that supports flexible bandwidth configuration of arbitrary width.

[0320] In some embodiments,

[0321] The third useful channel bandwidth range is determined based on the minimum useful channel bandwidth and the maximum useful channel bandwidth; or,

[0322] The third useful channel bandwidth range is determined based on the predefined sixth useful channel bandwidth and the predefined seventh useful channel bandwidth.

[0323] Taking the determination of the third useful channel bandwidth range based on the minimum useful channel bandwidth and the maximum useful channel bandwidth as an example, a minimum useful channel bandwidth (Min useful CBW) and a maximum useful channel bandwidth (Max useful CBW) are defined. Between these two useful bandwidths, flexible bandwidth configuration of any width can be supported.

[0324] In some embodiments, the third useful channel bandwidth range is determined based on the minimum useful channel bandwidth and the maximum useful channel bandwidth.

[0325] The possible useful channel bandwidth is determined based on the minimum useful channel bandwidth and a third step size, where the third step size is RB or a set fifth bandwidth.

[0326] The possible useful channel bandwidth defined between the minimum and maximum useful channel bandwidths is the useful channel bandwidth that increases in steps of three sizes based on the minimum useful channel bandwidth. In other words, in two adjacent possible useful channel bandwidths, the former possible useful channel bandwidth is less than the latter possible useful channel bandwidth by the third step size. The minimum and maximum useful channel bandwidths belong to two different possible useful channel bandwidths.

[0327] In this embodiment of the application, taking RB as an example for the third step size, the possible useful channel bandwidths are shown in Table 11.

[0328] Table 11. Examples of methods for defining useful channel bandwidth

[0329] In this embodiment of the application, the Min useful CBW can be 2MHz, 3MHz, 5MHz, etc., and the Max useful CBW can be 180MHz, 200MHz, 300MHz, etc. In this embodiment of the application, the values ​​of Min useful CBW and Max useful CBW are not limited.

[0330] Taking the determination of the third useful channel bandwidth range based on the predefined sixth and seventh useful channel bandwidths as an example, the predefined sixth and seventh useful channel bandwidths allow for flexible bandwidth configurations of arbitrary width between these two useful bandwidths. It can be understood that the third useful channel bandwidth range determined by the sixth and seventh useful channel bandwidths can be interpreted as including a portion of the useful bandwidth, meaning that flexible bandwidth configurations of arbitrary width are only used within a portion of the useful bandwidth.

[0331] In some embodiments, the third useful channel bandwidth range is determined based on a predefined sixth useful channel bandwidth and a predefined seventh useful channel bandwidth.

[0332] The possible useful channel bandwidth is determined based on the sixth useful channel bandwidth and the fourth step size, where the fourth step size is RB or the set sixth bandwidth.

[0333] The possible useful channel bandwidth defined between the sixth and seventh useful channel bandwidths is the useful channel bandwidth that increases in steps of the fourth step size based on the sixth useful channel bandwidth. In other words, in two adjacent possible useful channel bandwidths, the former possible useful channel bandwidth is less than the latter possible useful channel bandwidth by the fourth step size. The sixth and seventh useful channel bandwidths are two possible useful channel bandwidths.

[0334] In this embodiment of the application, taking the fourth step length as RB as an example, the possible useful channel bandwidths are shown in Table 12. The sixth useful channel bandwidth can be identified as useful CWB1, and the seventh useful channel bandwidth can be identified as useful CWB2.

[0335] Table 12. Examples of methods for defining useful channel bandwidth

[0336] In this embodiment of the application, the value of useful CWB1 can be greater than the value of Min useful CBW, and the value of useful CWB2 can be less than the value of Max useful CBW. In this embodiment of the application, the values ​​of useful CBW1 and useful CBW2 are not limited.

[0337] In this embodiment of the application, after determining the first available channel bandwidth, the first device transmits or receives based on the wake-up RB in the first available channel bandwidth.

[0338] In some embodiments, the first device is a terminal device, the first useful channel bandwidth includes a fourth useful channel bandwidth, and the method further includes:

[0339] The terminal device receives and / or transmits signals on the fourth useful channel bandwidth.

[0340] Here, network devices can schedule terminal resources for signal reception or transmission to terminal devices, wherein the frequency domain of the terminal resources lies within the available channel bandwidth. The terminal devices then perform signal reception or transmission on the terminal resources scheduled by the network devices.

[0341] In some embodiments, the first device is a network device, the first useful channel bandwidth includes a fifth useful channel bandwidth, and the method further includes: the network device receiving and / or transmitting signals on the fifth useful channel bandwidth.

[0342] The resource determination method provided in this application will now be described through several embodiments.

[0343] In this application embodiment, the following two methods are used to avoid spectrum waste caused by discrete channel bandwidth definitions:

[0344] One approach is to define as many discrete channel bandwidths as possible, but this would make the channel bandwidths themselves indistinguishable and would not truly prevent spectrum waste.

[0345] Another approach is to use a flexible bandwidth approach, which allows the channel bandwidth to be implemented with arbitrary spectral width.

[0346] The second method will be introduced below. It involves several aspects, including the definition of flexible bandwidth, network configuration of terminal resources, the scope of application of flexible bandwidth concepts and capabilities, and signaling-related aspects.

[0347] 1. Flexible bandwidth definition

[0348] Before introducing flexible bandwidth, let's first look at the composition of channel bandwidth, as shown in Figure 6. Channel bandwidth (CBW) includes the useful channel bandwidth (N*RB) and guard bands on both sides. The size of the guard band may vary depending on the channel bandwidth.

[0349] The basic idea behind flexible bandwidth is to allow the channel bandwidth (or useful channel bandwidth) to use any spectral width. Here, channel bandwidth can refer to the terminal-side bandwidth or the network-side bandwidth; the terminal-side bandwidth and the network-side bandwidth can be the same or different.

[0350] To achieve flexible bandwidth configuration, the network needs to know how many available redundancies (RBs) can be allocated to the terminals. Simultaneously, both the network and the terminals need to know the guard band size for these available RBs. Once the number of available RBs and the guard band size are determined, the actual bandwidth configuration for a single channel becomes clear.

[0351] The information regarding the configurable number of useful RBs involves the concept of spectrum utilization. A brief introduction to spectrum utilization is provided below.

[0352] Figure 6 already illustrates the guard band within the channel bandwidth and mentions that its size may differ for different channel bandwidths. Furthermore, the sizes of the guard bands on the left and right sides of the channel bandwidth may also differ, as shown in Figure 13. Here, we only define the minimum guard band required for the CBW. The minimum guard band of the channel bandwidth is the minimum value between the left and right guard bands, i.e.: minimum guard band = min(guard band 1, guard band 2).

[0353] Taking Figure 6 as an example, the definition of spectrum utilization is as follows:

[0354] Spectral efficiency of channel bandwidth = Useful channel bandwidth / Channel bandwidth = N * RB / CBW.

[0355] The size of the guard band needs to take into account the spectral characteristics of the baseband output signal. Figures 14 and 15 show the relative relationship between the baseband output signal spectrum (based on power spectral density (PSD)) and out-of-band spectrum requirements (spurious emission mask, SEM-mask) for the cases with one RB and full RB configuration, respectively. A larger guard band makes it easier to meet out-of-band spectrum requirements; conversely, a smaller guard band makes it more difficult to meet out-of-band spectrum requirements. Furthermore, an excessively large guard band will reduce the useful channel bandwidth and decrease the overall spectrum utilization.

[0356] The spectral efficiency can take a series of discrete candidate values, such as 95%, 96%, 97%, 98%, etc. The following methods can be used to process the spectral efficiency:

[0357] Method 1: Use a predefined (spectral efficiency or minimum spectral efficiency)

[0358] When using the predetermined minimum spectrum utilization method

[0359] This means that all terminals and / or network devices need to achieve at least this spectrum utilization rate. Assuming a uniformly defined minimum spectrum utilization rate of 95%, then it means: N*RB / CBW>=95%, that is: N>=95%*CBW / RB.

[0360] In this inequality, N represents the number of red-bandwidth (RB) contained in the useful channel bandwidth. 95% * CBW / RB may not be an integer. The minimum value of N can be determined in the following ways:

[0361] Method A: Use the floor method, that is: minimum value of N = floor(95%*CBW / RB), where floor means floor.

[0362] This approach ensures that out-of-band radiation meets out-of-band spectral requirements, but the drawback is that the spectral efficiency will be slightly lower than the predefined spectral efficiency (95% in this example).

[0363] Method B: Use the floor function, that is: minimum value of N = ceil(95%*CBW / RB), where ceil means floor function.

[0364] This approach ensures that the spectrum utilization rate will be greater than the predefined spectrum utilization rate (95% in this example), but the disadvantage is that the terminal or network needs to use additional processing (such as using a higher filter order) to ensure that the out-of-band radiation can meet the out-of-band spectrum requirements.

[0365] When using a predetermined spectrum utilization method

[0366] This means that for a given channel bandwidth, the number of usable bandwidth blocks (RBs) is a fixed value. For example, assuming a uniformly defined spectrum utilization rate of 95%, then it means: N*RB / CBW = 95%, or N = 95%*CBW / RB.

[0367] 95%*CBW / RB may not be an integer; N can be selected in several ways:

[0368] Method A: Use the floor method, i.e.: N = floor(95% * CBW / RB).

[0369] This method ensures that out-of-band radiation meets out-of-band spectral requirements, but the drawback is that the spectral utilization will be slightly less than the predefined value (95% in this example).

[0370] Method B: Use the floor function, i.e.: N = ceil(95% * CBW / RB).

[0371] This approach ensures that the spectrum utilization will be greater than the predefined value (95% in this example), but the drawback is that the terminal or network needs to use additional processing (such as using a higher filter order) to ensure that the out-of-band radiation can meet the out-of-band spectrum requirements.

[0372] The predefined (spectral efficiency or minimum spectral efficiency) can be applied to all possible bandwidths contained between the minimum and maximum channel bandwidths, and can also be applied to certain channel bandwidth ranges (such as the bandwidth between CBW1 and CBW2).

[0373] The reason for considering different channel bandwidth ranges is that the potential spectral efficiency typically decreases as the channel bandwidth decreases. Therefore, different minimum spectral efficiency can be applied to different channel bandwidth ranges, as shown in Table 13 below.

[0374] Table 13. Relationship between channel bandwidth range and spectrum utilization

[0375] Method 2: Using terminal reporting of maximum spectrum utilization

[0376] This approach takes into account that the actual capabilities of different terminals may vary. For example, some terminals may only meet the minimum spectrum utilization of method 1, while others may meet a higher spectrum utilization.

[0377] Understandably, the terminal can report the maximum spectrum utilization rate in three ways: the spectrum utilization rate calculated as N*RB / CBW, the number of useful RBs, or the guard band size. All three methods can ultimately yield the spectrum utilization rate value.

[0378] The terminal's maximum spectrum utilization capability can be indicated in the following ways:

[0379] Method a: The maximum spectral efficiency that the terminal can support is reported as capability information (it can be a single value corresponding to all frequency bands, or different values ​​for different frequency bands).

[0380] Among them, when the actual capability of the terminal is higher than the predefined spectrum utilization rate, the terminal can report the maximum spectrum utilization rate it can support.

[0381] For example, if the predefined maximum spectrum utilization is 95%, and the terminal can support a maximum spectrum utilization of 97%, then the terminal can report this 97% value to the network. Upon receiving this value, the network can calculate the maximum configurable useful channel bandwidth (i.e., the number of useful bandwidth blocks) and the terminal's minimum guard band. For example: N*RB / CBW <= 97%, or N <= 97%*CBW / RB.

[0382] 97%*CBW / RB may not be an integer. The minimum value of N can be obtained by using the RB calculation method in Method 1 (rounding down or rounding up).

[0383] Method b: For a given bandwidth, the terminal reports the maximum number of usable RBs it can support as its capability (this can be a single value corresponding to all frequency bands, or different values ​​for different frequency bands).

[0384] This approach is suitable when the terminal has obtained channel bandwidth information, such as knowing that the current cell's channel bandwidth is 9MHz by reading system broadcast information. The terminal can then report the maximum number of usable redundancies (RBs) it can support to the network. Upon receiving this information, the network can then determine the maximum number of RBs configured for that terminal.

[0385] Method c: The terminal can report the minimum supported guard band as a capability (it can be a single value corresponding to all frequency bands, or different values ​​for different frequency bands).

[0386] The minimum guard band is actually related to the maximum number of useful RBs within a channel bandwidth. In mode b, the maximum number of useful RBs is reported; correspondingly, as an alternative, the minimum guard band can also be reported.

[0387] Considering that the value of the minimum guard band (e.g., X khz) may not be as intuitive as the number of useful RBs, to simplify the complexity of the values reported by the terminal, a set of optional candidate values can be defined, from which the terminal selects a value for reporting. For example, {142.5khz, 242.5khz, 312.5khz, ….}

[0388] Through the above method, the network can obtain the spectrum utilization information of the terminal, so as to determine the number of RBs that can be configured for the terminal and the corresponding guard band under any channel bandwidth.

[0389] The above method for the terminal to report the maximum spectrum utilization ability (i.e., Method 2) can be independent of the predefined minimum spectrum utilization method (Method 1), or can be combined with the predefined minimum spectrum utilization method.

[0390] For example: when using Method 2, the network depends on the terminal's ability information report to know the number of useful RBs and the guard band in a bandwidth; when Method 1 and Method 2 are combined, the network can know the minimum number of useful RBs and the corresponding guard band in a bandwidth. Before the terminal reports the maximum spectrum utilization ability, the network can configure the terminal according to the predefined spectrum utilization.

[0391] In the embodiments of this application, the size of the guard band can be predefined, and this guard band size can be different for different bandwidths or bandwidth intervals.

[0392] For example, in the case of 15khz SCS, there is the following corresponding relationship: <00008​​​​​​​​​​​​​​​​​​​In this embodiment, after the network configures a channel bandwidth for the terminal, the terminal can obtain the corresponding useful channel bandwidth based on a predefined guard band size; or, after the network configures a useful channel bandwidth for the terminal, the terminal can obtain the corresponding channel bandwidth. The total number of redundancy blocks (RBs) in the useful channel bandwidth needs to ensure that the guard band meets the above conditions. For example, assuming a minimum guard band size is predefined, the spectrum occupied by the total number of RBs in the useful channel should ensure that the remaining guard band size is greater than the predefined minimum guard band.

[0400] 2. Network configuration of terminal resources

[0401] Given that network devices have relatively stronger hardware capabilities and thus higher spectrum utilization, the number of useful redundancy blocks (RBs) at a terminal may differ from the number of useful RBs at the base station for the same channel bandwidth. Therefore, resource alignment between network devices and terminals can be considered.

[0402] As shown in Figures 8 and 10, in this example, the network side has higher spectrum utilization, meaning it can use a smaller guard band and a larger useful channel bandwidth. The network can allocate RB resources to terminals in the following ways:

[0403] Alignment method 1, as shown in Figure 8, can align the terminal's channel bandwidth edge with the network channel bandwidth edge. In this method, it is necessary to further consider whether the resource grids of the useful resource blocks (RBs) of the network and the terminal are aligned.

[0404] Alignment can be achieved by increasing the guard band of the terminal or network (which may encroach on some of the spectrum of the useful channel bandwidth) while appropriately reducing the useful channel bandwidth.

[0405] While ensuring that the terminal's total channel bandwidth does not exceed the network's channel bandwidth, as shown in Figure 9, the terminal's resource grid is aligned with the network's available resource grids (RBs).

[0406] For example, one or more of the useful channel bandwidth (RB) or subcarrier spacing (SCS) of the terminal or network can be reduced. This reduction in RB or SCS can be used for guard band adjustment to achieve resource grid alignment.

[0407] Alignment method 2, as shown in Figure 8, aligns the useful channel bandwidth edge of the terminal with the useful channel edge of the network.

[0408] Furthermore, considering that the terminal may need to know the channel bandwidth or useful channel bandwidth information used during transmission or reception in order to configure the corresponding transmitter or receiver parameters, the network can handle the channel bandwidth (or useful channel bandwidth) in the following two ways when configuring RB resources to the terminal:

[0409] Processing method 1: The network will indicate the channel bandwidth information or useful channel bandwidth information corresponding to the configured RB resources to the terminal, and the terminal can use the corresponding channel bandwidth CBW configuration in subsequent transmission and reception.

[0410] Processing Method 2: The network does not indicate the channel bandwidth information or useful channel bandwidth information corresponding to the configured RB resources. The terminal can decide on the channel bandwidth CBW configuration to be used in subsequent transmission and reception.

[0411] 3. Scope of application of flexible bandwidth concept and capabilities

[0412] The previous section introduced methods for determining channel bandwidth, useful channel bandwidth, and guard band. The following section further introduces the concept of flexible bandwidth and its applicable scope. Specifically, it can be defined in the following two ways:

[0413] Method 1: Flexible bandwidth applies to any bandwidth between the minimum and maximum useful bandwidth.

[0414] As shown in Figure 16, a minimum useful channel bandwidth (Min useful CBW) and a maximum useful channel bandwidth (Max useful CBW) are defined here. Between these two bandwidths, the terminal can support flexible bandwidth configuration of any width.

[0415] In Figure 16, X can be a certain number of RBs, or a certain length of spectrum resources such as N*MHz (N can be a value greater than 0). Table 11 shows a schematic diagram of the useful channel bandwidth definition in RB increments.

[0416] As shown in Figure 17, a minimum channel bandwidth (Min CBW) and a maximum channel bandwidth (Max CBW) are defined here. Between these two bandwidths, the terminal can support flexible bandwidth configuration of any width.

[0417] In Figure 17, X can be a certain number of RBs, or a certain length of spectrum resource such as N*MHz (N can be a value > 0). Table 9 shows a schematic diagram of channel bandwidth definition in RB increments. Method 2: Using flexible bandwidth only in certain bandwidth segments.

[0418] This approach is similar to approach 1, but the difference is that it only considers a certain degree of flexibility, that is, it only uses flexible bandwidth between a portion of the bandwidth, unlike approach 1 which defines flexible bandwidth between all bandwidths.

[0419] As shown in Figure 18, the bandwidth defined between useful CBW1 and useful CBW2 is the bandwidth size of useful CBW1 plus any length X.

[0420] Taking n RBs as an example, assuming CBW1 is 3MHz (corresponding to 15 RBs in a 15kHz subcarrier spacing), and CBW2 is 10MHz (corresponding to 52 RBs in a 15kHz subcarrier spacing), then useful CBW1 + n RBs can satisfy any bandwidth length from 15 RBs to 52 RBs. Bandwidths greater than 10MHz can still maintain discrete bandwidths, such as 15MHz, 20MHz, 35MHz, 40MHz, etc. As shown in Table 12, this method can achieve efficient spectrum utilization in certain bandwidths, especially small bandwidths.

[0421] Similarly, the useful channel bandwidth (CBW) in this approach can be replaced with the channel bandwidth (CBW), as shown in Figure 19 and Table 10.

[0422] 4. Signaling related

[0423] 4.1 Based on predefined spectrum utilization

[0424] Flexible bandwidth, when disregarding different terminal capabilities (such as spectrum utilization) and different network capabilities, can replace the current channel bandwidth definition method. Using a predefined spectrum utilization, the terminal and network can calculate the total channel bandwidth and guard band corresponding to any useful channel bandwidth (N*RB). Under this mechanism, the signaling involved includes one or more of the following:

[0425] Signaling 1: The network indicates the terminal's channel bandwidth or useful channel bandwidth. After receiving this information, the terminal can clearly specify the in-band and out-of-band transmission spectrum requirements that it needs to meet for receiving or transmitting. The channel bandwidth or useful channel bandwidth here can be cell-specific or UE-specific.

[0426] The content indicated can be the channel bandwidth or useful channel bandwidth in RB steps mentioned in Part 3, or it can be the channel bandwidth or useful channel bandwidth in a certain frequency step.

[0427] If the network does not indicate channel bandwidth information or useful channel bandwidth information to the terminal, the terminal can determine the channel bandwidth containing these configured RB resources for transmitter and receiver configuration. For example, it can use the minimum channel bandwidth containing these configured RB resources for transmission and reception.

[0428] Signaling 2: Terminal reports whether it supports flexible bandwidth capability.

[0429] If this capability is not defined, it means that this flexible bandwidth is a feature that must be supported.

[0430] If we consider that some terminals may not support this feature, or that terminals do not support this feature on certain frequency bands, then we need to introduce the terminal's capability information.

[0431] This capability information can be per UE (distinguishing terminal capabilities based on UE), meaning whether the terminal supports this flexible bandwidth capability for all of its available frequency bands.

[0432] This capability information can also be per band (distinguishing terminal capabilities by band), meaning whether the terminal supports this flexible bandwidth capability for a certain frequency band.

[0433] This capability information can also be per CBW (distinguishing terminal capabilities according to CBW ranges), meaning that this terminal supports flexible bandwidth in certain bandwidth ranges. In this case, the indication can specify the start and end bandwidths for supporting flexible bandwidth separately.

[0434] The relevant process is shown in Figure 20, including:

[0435] S2001. The terminal device reports to the network device whether it supports flexible bandwidth, such as: in which frequency bands and bandwidth ranges flexible bandwidth is supported.

[0436] S2002. The network device instructs the terminal device on the channel bandwidth or useful channel bandwidth used for transmission and reception, and schedules terminal resources for transmission or reception.

[0437] S2003. The terminal device configures the transmission link according to the channel bandwidth or useful channel bandwidth indicated by the network device, or, when the network device does not indicate the terminal channel bandwidth / useful channel bandwidth, the terminal device determines the working channel bandwidth and useful channel bandwidth itself.

[0438] S2004. Terminal devices transmit or receive on resources scheduled by network devices.

[0439] 4.2 Spectrum utilization information based on terminal capabilities

[0440] Flexible bandwidth technology involves processes such as reporting the capabilities of multiple terminals and configuring the network.

[0441] Terminal capability reporting may include one or more of the following information:

[0442] Information 1: Does the terminal support flexible bandwidth capabilities?

[0443] Information 2: What type of flexible bandwidth does the terminal support?

[0444] Information 3: Flexible bandwidth step length information, such as whether the step size is N*RB or N*MHz;

[0445] Information 4: Specifically used to determine the relevant terminal capabilities of the network in terms of useful channel bandwidth and guard band.

[0446] Information 2 may include the following forms:

[0447] Form 1: Between the minimum channel bandwidth (or minimum useful bandwidth) and the maximum channel bandwidth (or maximum useful bandwidth), the terminal supports network configuration of any size of channel bandwidth (or useful bandwidth);

[0448] Form 2 supports flexible bandwidth configuration only within a portion of the channel bandwidth (or a portion of the useful bandwidth).

[0449] For information 4, the terminal reports the maximum supported spectrum utilization information. This spectrum utilization information can be the spectrum utilization value, the number of useful RBs, or the guard band size.

[0450] Method 1: The terminal reports a uniform maximum spectrum utilization rate, which can be applied to all possible channel bandwidths;

[0451] Method 2: The terminal can report the maximum supported spectrum utilization only for a portion of the channel bandwidth, such as the maximum spectrum utilization only applicable between CBW1 and CBW2;

[0452] Method 3: The terminal reports the spectrum utilization capability of a certain channel bandwidth.

[0453] The capability information reported by the terminal can be reported by band (i.e., per band), by UE (i.e., per UE), or by CBW (distinguishing terminal capabilities according to CBW range).

[0454] The network configuration of flexible bandwidth to the terminal can include one or more of the following information:

[0455] Information 1: The network indicates the channel bandwidth information or useful channel bandwidth information to the terminal. The terminal can obtain the maximum useful RB resources, guard band, etc. by combining the spectrum utilization rate, so as to configure the corresponding transmitter and receiver.

[0456] Information 2: The network scheduling terminal transmits or receives data on certain RB resources.

[0457] If the network does not indicate the above channel bandwidth information or useful channel bandwidth information to the terminal, the terminal can determine the channel bandwidth containing these configured RB resources for transmitter and receiver configuration, such as using the minimum channel bandwidth containing these configured RB resources for transmission and reception.

[0458] Information 3: The network can decide to enable or disable flexible bandwidth configuration. When the network disables flexible bandwidth configuration, the terminal needs to follow the existing predefined channel bandwidth and available RB resource configuration information.

[0459] The relevant process is shown in Figure 21, including:

[0460] S2101. The terminal device reports information on the flexible bandwidth capabilities it supports, including whether it supports flexible bandwidth configuration, maximum spectrum utilization, number of configurable RBs, guard band size, etc.

[0461] S2102. The network device instructs the terminal device on the channel bandwidth or useful channel bandwidth used for transmission and reception, and schedules terminal resources for transmission or reception.

[0462] S2103. The terminal device configures the transmission link according to the channel bandwidth or useful channel bandwidth indicated by the network device, or, when the network device does not indicate the terminal channel bandwidth / useful channel bandwidth, the terminal device determines the working channel bandwidth and useful channel bandwidth on its own.

[0463] S2104. The terminal device transmits or receives on the resources scheduled by the network device.

[0464] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solutions of this application, and these simple modifications all fall within the protection scope of this application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this application will not describe the various possible combinations separately. Furthermore, various different embodiments of this application can also be arbitrarily combined, as long as they do not violate the spirit of this application, they should also be considered as the content disclosed in this application. Moreover, without conflict, the various embodiments and / or the technical features in the various embodiments described in this application can be arbitrarily combined with the prior art, and the resulting technical solutions should also fall within the protection scope of this application.

[0465] It should also be understood that in the various method embodiments of this application, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application. Furthermore, in the embodiments of this application, the terms "downlink," "uplink," and "sidelink" are used to indicate the transmission direction of signals or data. "Downlink" indicates that the transmission direction of signals or data is a first direction from the site to the user equipment in the cell; "uplink" indicates that the transmission direction of signals or data is a second direction from the user equipment in the cell to the site; and "sidelink" indicates that the transmission direction of signals or data is a third direction from user equipment 1 to user equipment 2. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction. Additionally, in the embodiments of this application, the term "and / or" is merely a description of the association relationship between related objects, indicating that three relationships can exist. Specifically, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0466] Figure 22 is a schematic diagram of the structure of the first device provided in an embodiment of this application. As shown in Figure 22, the first device 2200 includes:

[0467] The determining unit 1201 is configured to determine a first bandwidth, which is related to a second bandwidth; wherein,

[0468] The first bandwidth includes the first channel bandwidth, and the second bandwidth includes the first useful channel bandwidth, wherein the first useful channel bandwidth is the maximum transmission bandwidth; or,

[0469] The first bandwidth includes the first useful channel bandwidth, and the second bandwidth includes the first channel bandwidth.

[0470] In some embodiments, the first bandwidth is related to first information and the second bandwidth, wherein the first information includes one or more of the following: spectrum utilization, number of useful resource blocks (RBs), and guard band.

[0471] In some embodiments, the first information relates to one or more of the following:

[0472] Predefined spectral utilization or predefined minimum spectral utilization;

[0473] A first spectrum utilization rate and / or a second spectrum utilization rate, wherein the first spectrum utilization rate is the spectrum utilization rate related to the terminal device and the second spectrum utilization rate is the spectrum utilization rate related to the network device.

[0474] In some embodiments, the second bandwidth includes the first channel bandwidth;

[0475] The predefined spectral efficiency or predefined minimum spectral efficiency applies to all possible channel bandwidths; or,

[0476] The predefined spectral efficiency or predefined minimum spectral efficiency applies to a first channel bandwidth range, which is one of a plurality of second channel bandwidth ranges. The first channel bandwidth range includes the first channel bandwidth. The predefined spectral efficiency or predefined minimum spectral efficiency applicable to different second channel bandwidth ranges may be different or the same; or...

[0477] The predefined spectrum utilization rate or predefined minimum spectrum utilization rate corresponds to the second channel bandwidth, which is one of a plurality of third channel bandwidths. Different third channel bandwidths correspond to different predefined spectrum utilization rates or predefined minimum spectrum utilization rates. The first channel bandwidth is the second channel bandwidth, or the first channel bandwidth is located between two adjacent third channel bandwidths and the second channel bandwidth is the smaller or larger bandwidth of the two adjacent third channel bandwidths.

[0478] In some embodiments, the second bandwidth includes the first useful channel bandwidth;

[0479] The predefined spectral utilization rate or minimum spectral utilization rate applies to all possible useful channel bandwidths; or,

[0480] The predefined spectral efficiency or predefined minimum spectral efficiency applies to a first useful channel bandwidth range, which is one of multiple second useful channel bandwidth ranges. The first useful channel bandwidth range includes the first useful channel bandwidth, and the predefined spectral efficiency or minimum spectral efficiency applies to different second useful channel bandwidth ranges; or...

[0481] The predefined spectrum utilization rate or predefined minimum spectrum utilization rate corresponds to the second useful channel bandwidth, which is one of a plurality of third useful channel bandwidths. Different third useful channel bandwidths correspond to different predefined spectrum utilization rates or predefined minimum spectrum utilization rates. The first useful channel bandwidth is the second useful channel bandwidth, or the first useful channel bandwidth is located between two adjacent third useful channel bandwidths and the second useful channel bandwidth is the smaller or larger bandwidth of the two adjacent third useful channel bandwidths.

[0482] In some embodiments,

[0483] The first spectrum utilization rate is the spectrum utilization rate of the terminal device determined by the network device; or,

[0484] The first spectrum utilization rate is the maximum spectrum utilization rate supported by the terminal device.

[0485] In some embodiments, the first device further includes:

[0486] The communication unit is configured to receive second information sent by the second device; wherein the second information is used to determine the first spectrum utilization rate.

[0487] In some embodiments, the second information includes one or more of the following:

[0488] The value of the first spectrum utilization rate;

[0489] A first quantity or a second quantity, wherein the first quantity is the number of useful RBs configured by the network device for the terminal device, and the second quantity is the maximum number of useful RBs supported by the terminal device;

[0490] The third information is used to determine a first protection band or a second protection band, wherein the first protection band is the protection band configured by the network device for the terminal device, and the second protection band is the minimum protection band supported by the terminal device.

[0491] In some embodiments, the third information includes one or more of the following:

[0492] The size of the first protective strip or the size of the second protective strip;

[0493] The first indication information is the index of the first protective strip or the second protective strip.

[0494] In some embodiments, the first information includes:

[0495] The third protection zone includes a predefined protection zone, a predefined minimum protection zone, or a predefined maximum protection zone.

[0496] In some embodiments, the second bandwidth includes the first channel bandwidth;

[0497] The third guard band applies to all possible channel bandwidths; or,

[0498] The third protection band applies to a first channel bandwidth range, which is one of multiple second channel bandwidth ranges. The first channel bandwidth range includes the first channel bandwidth, and the third protection bands applicable to different second channel bandwidth ranges are different; or...

[0499] The third guard band corresponds to the second channel bandwidth, which is one of a plurality of third channel bandwidths. Different third channel bandwidths correspond to different third guard bands. The first channel bandwidth is the second channel bandwidth, or the first channel bandwidth is located between two adjacent third channel bandwidths and the first channel bandwidth is the smaller or larger bandwidth of the two adjacent third channel bandwidths.

[0500] In some embodiments, the second bandwidth includes the first useful channel bandwidth;

[0501] The third guard band applies to all possible useful channel bandwidths; or...

[0502] The third guard band applies to a first useful channel bandwidth range, which is one of multiple second useful channel bandwidth ranges. The first useful channel bandwidth range includes the first useful channel bandwidth, and a third guard band applies to different second useful channel bandwidth ranges; or...

[0503] The third guard band corresponds to the second useful channel bandwidth, which is one of a plurality of third useful channel bandwidths. Different third useful channel bandwidths correspond to different third guard bands. The first useful channel bandwidth is the second useful channel bandwidth, or the first useful channel bandwidth is located between two adjacent third useful channel bandwidths and the second useful channel bandwidth is the smaller or larger bandwidth of the two adjacent third useful channel bandwidths.

[0504] In some embodiments, the first channel bandwidth includes a fourth channel bandwidth and / or a fifth channel bandwidth, and the first useful channel bandwidth includes a fourth useful channel bandwidth and / or a fifth useful channel bandwidth;

[0505] The fourth channel bandwidth is the channel bandwidth of the terminal device;

[0506] The fifth channel bandwidth is the channel bandwidth of the network device;

[0507] The fourth useful channel bandwidth is the useful channel bandwidth within the fourth channel bandwidth;

[0508] The fifth useful channel bandwidth is the useful channel bandwidth within the fifth channel bandwidth.

[0509] In some embodiments,

[0510] The fourth channel bandwidth is the same as the fifth channel bandwidth, but the fourth useful channel bandwidth is different from the fifth useful channel bandwidth.

[0511] In some embodiments, the fourth useful channel bandwidth is related to the first spectrum utilization rate, and the fifth useful channel bandwidth is related to the second spectrum utilization rate, wherein the first spectrum utilization rate is less than the second spectrum utilization rate.

[0512] In some embodiments, the first device 2200 is a network device, and the first useful channel bandwidth includes: the fourth useful channel bandwidth and the fifth useful channel bandwidth; the first device 2200 further includes: an alignment unit configured to align the edge of the fourth channel bandwidth and the edge of the fifth channel bandwidth; or, to align the edge of the fourth useful channel bandwidth and the edge of the fifth useful channel bandwidth.

[0513] In some embodiments, the alignment unit is further configured to adjust the guard band of the fourth channel bandwidth and / or the guard band of the fifth channel bandwidth.

[0514] In some embodiments, the alignment unit is further configured to align the resource grids of the useful RBs in the fourth useful channel bandwidth and the useful RBs in the fifth useful channel bandwidth.

[0515] In some embodiments, the alignment unit is further configured to adjust a third quantity and / or a fourth quantity;

[0516] The third quantity is the number of useful RBs or subcarrier spacings (SCS) included in the fourth useful channel bandwidth;

[0517] The fourth quantity is the number of useful RBs or SCSs included in the fifth useful channel bandwidth.

[0518] In some embodiments, the first device 2200 is a network device, and the first device 2200 further includes:

[0519] A communication unit is configured to send fourth information to a terminal device, the fourth information being used to indicate the second bandwidth.

[0520] In some embodiments, the first device 2200 is a terminal device, and the first device 2200 further includes:

[0521] The communication unit is configured to receive fifth information sent by the network device, the fifth information being used to indicate the first bandwidth.

[0522] In some embodiments, the determining unit 2201 is further configured to determine a fifth quantity when the first bandwidth includes the first useful channel bandwidth and the second bandwidth includes the first channel bandwidth, the fifth quantity being related to the first information and the first channel bandwidth, and the fifth quantity being the number of useful RBs included in the first useful channel bandwidth.

[0523] In some embodiments,

[0524] The fifth quantity is the result of rounding up or down the first value; the first value is determined based on the first channel bandwidth and the first information.

[0525] In some embodiments, the second bandwidth includes the first channel bandwidth, which is one of the possible channel bandwidths within the fourth channel bandwidth range.

[0526] In some embodiments,

[0527] The fourth channel bandwidth range is determined based on the minimum and maximum channel bandwidths; or,

[0528] The fourth channel bandwidth range is determined based on the predefined sixth channel bandwidth and the predefined seventh channel bandwidth.

[0529] In some embodiments, the fourth channel bandwidth range is determined based on the minimum channel bandwidth and the maximum channel bandwidth.

[0530] The possible channel bandwidth is determined based on the minimum channel bandwidth and the first step length, where the first step length is RB or a set third bandwidth.

[0531] In some embodiments, the fourth channel bandwidth range is determined based on a predefined sixth channel bandwidth and a predefined seventh channel bandwidth.

[0532] The possible channel bandwidth is determined based on the sixth channel bandwidth and the second step size, where the second step size is RB or a set fourth bandwidth.

[0533] In some embodiments, the second bandwidth includes the first useful channel bandwidth, which is one of the possible useful channel bandwidths within the fourth useful channel bandwidth range.

[0534] In some embodiments,

[0535] The fourth useful channel bandwidth range is determined based on the minimum useful channel bandwidth and the maximum useful channel bandwidth; or,

[0536] The fourth useful channel bandwidth range is determined based on the predefined sixth useful channel bandwidth and the predefined seventh useful channel bandwidth.

[0537] In some embodiments, the fourth useful channel bandwidth range is determined based on the minimum useful channel bandwidth and the maximum useful channel bandwidth.

[0538] The possible useful channel bandwidth is determined based on the minimum useful channel bandwidth and a third step size, where the third step size is RB or a set fifth bandwidth.

[0539] In some embodiments, the fourth useful channel bandwidth range is determined based on a predefined sixth useful channel bandwidth and a predefined seventh useful channel bandwidth.

[0540] The possible useful channel bandwidth is determined based on the sixth useful channel bandwidth and the fourth step size, where the fourth step size is RB or the set sixth bandwidth.

[0541] In some embodiments, the first device is a terminal device, and the first device 2200 further includes:

[0542] The communication unit is configured to receive and / or transmit signals on a fourth useful channel bandwidth included in the first useful channel bandwidth.

[0543] In some embodiments, the first device is a network device, and the first device 2200 further includes:

[0544] The communication unit is configured to receive and / or transmit signals on a fifth useful channel bandwidth included in the first useful channel bandwidth.

[0545] The communication unit in the first device can be implemented by the transceiver in the first device. The determination unit and alignment unit in the first device can be implemented by the processor in the first device.

[0546] Those skilled in the art should understand that the descriptions of the terminal devices or network devices described in the embodiments of this application can be understood with reference to the descriptions of the resource determination methods in the embodiments of this application.

[0547] Figure 23 is a schematic structural diagram of a communication device 2300 provided in an embodiment of this application. This communication device can be a terminal device or a network device. The communication device 2300 shown in Figure 23 includes a processor 2310, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0548] Optionally, as shown in FIG23, the communication device 2300 may further include a memory 2320. The processor 2310 may retrieve and run computer programs from the memory 2320 to implement the methods in the embodiments of this application.

[0549] The memory 2320 can be a separate device independent of the processor 2310, or it can be integrated into the processor 2310.

[0550] Optionally, as shown in FIG23, the communication device 2300 may further include a transceiver 2330, and the processor 2310 may control the transceiver 2330 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0551] The transceiver 2330 may include a transmitter and a receiver. The transceiver 2330 may further include an antenna, and the number of antennas may be one or more.

[0552] Optionally, the communication device 2300 may specifically be the first device in the embodiments of this application, and the communication device 2300 may implement the corresponding processes implemented by the first device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0553] Figure 24 is a schematic structural diagram of a chip according to an embodiment of this application. The chip 2400 shown in Figure 24 includes a processor 2410, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0554] Optionally, as shown in FIG24, chip 2400 may further include memory 2420. Processor 2410 may retrieve and run computer programs from memory 2420 to implement the methods in the embodiments of this application.

[0555] The memory 2420 can be a separate device independent of the processor 2410, or it can be integrated into the processor 2410.

[0556] Optionally, the chip 2400 may also include an input interface 2430. The processor 2410 can control the input interface 2430 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips.

[0557] Optionally, the chip 2400 may also include an output interface 2440. The processor 2410 can control the output interface 2440 to communicate with other devices or chips, specifically, to output information or data to other devices or chips.

[0558] Optionally, the chip can be applied to the first device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the first device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0559] 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.

[0560] Figure 25 is a schematic block diagram of a communication system 2500 provided in an embodiment of this application. As shown in Figure 25, the communication system 2500 includes a terminal device 2510 and a network device 2520. The first device in this embodiment can be either the terminal device 2510 or the network device 2520.

[0561] The first device can be used to implement the corresponding functions implemented by the first device in the above method, which will not be elaborated here for the sake of brevity.

[0562] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0563] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can 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. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0564] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0565] This application also provides a computer-readable storage medium for storing computer programs.

[0566] Optionally, the computer-readable storage medium can be applied to the first device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0567] This application also provides a computer program product, including computer program instructions.

[0568] Optionally, the computer program product can be applied to the first device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0569] This application also provides a computer program.

[0570] Optionally, the computer program can be applied to the first device in the embodiments of this application. When the computer program is run on a computer, it causes the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0571] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0572] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0573] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0574] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0575] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0576] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0577] 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

A resource determination method, the method comprising: The first device determines a first bandwidth, which is related to a second bandwidth; wherein... The first bandwidth includes the first channel bandwidth, and the second bandwidth includes the first useful channel bandwidth, wherein the first useful channel bandwidth is the maximum transmission bandwidth; or, The first bandwidth includes the first useful channel bandwidth, and the second bandwidth includes the first channel bandwidth. According to the method of claim 1, wherein, The first bandwidth is related to the first information and the second bandwidth. The first information includes one or more of the following: spectrum utilization, number of useful resource blocks (RBs), and guard band. The method according to claim 2, wherein, The first information relates to one or more of the following: Predefined spectral utilization or predefined minimum spectral utilization; A first spectrum utilization rate and / or a second spectrum utilization rate, wherein the first spectrum utilization rate is the spectrum utilization rate related to the terminal device and the second spectrum utilization rate is the spectrum utilization rate related to the network device. The method according to claim 3, wherein, The second bandwidth includes the first channel bandwidth; The predefined spectral efficiency or predefined minimum spectral efficiency applies to all possible channel bandwidths; or, The predefined spectral efficiency or predefined minimum spectral efficiency applies to a first channel bandwidth range, which is one of a plurality of second channel bandwidth ranges. The first channel bandwidth range includes the first channel bandwidth. The predefined spectral efficiency or predefined minimum spectral efficiency applicable to different second channel bandwidth ranges may be different or the same; or... The predefined spectrum utilization rate or predefined minimum spectrum utilization rate corresponds to the second channel bandwidth, which is one of a plurality of third channel bandwidths. Different third channel bandwidths correspond to different predefined spectrum utilization rates or predefined minimum spectrum utilization rates. The first channel bandwidth is the second channel bandwidth, or the first channel bandwidth is located between two adjacent third channel bandwidths and the second channel bandwidth is the smaller or larger bandwidth of the two adjacent third channel bandwidths. The method according to claim 3, wherein, The second bandwidth includes the first useful channel bandwidth; The predefined spectral utilization rate or minimum spectral utilization rate applies to all possible useful channel bandwidths; or, The predefined spectral efficiency or predefined minimum spectral efficiency applies to a first useful channel bandwidth range, which is one of multiple second useful channel bandwidth ranges. The first useful channel bandwidth range includes the first useful channel bandwidth, and the predefined spectral efficiency or minimum spectral efficiency applies to different second useful channel bandwidth ranges; or... The predefined spectrum utilization rate or predefined minimum spectrum utilization rate corresponds to the second useful channel bandwidth, which is one of a plurality of third useful channel bandwidths. Different third useful channel bandwidths correspond to different predefined spectrum utilization rates or predefined minimum spectrum utilization rates. The first useful channel bandwidth is the second useful channel bandwidth, or the first useful channel bandwidth is located between two adjacent third useful channel bandwidths and the second useful channel bandwidth is the smaller or larger bandwidth of the two adjacent third useful channel bandwidths. The method according to any one of claims 3 to 5, wherein, The first spectrum utilization rate is the spectrum utilization rate of the terminal device determined by the network device; or, The first spectrum utilization rate is the maximum spectrum utilization rate supported by the terminal device. The method according to any one of claims 3 to 6, wherein, The method further includes: The first device receives second information sent by the second device; wherein the second information is used to determine the first spectrum utilization rate. The method according to claim 7, wherein, The second information includes one or more of the following: The value of the first spectrum utilization rate; A first quantity or a second quantity, wherein the first quantity is the number of useful RBs configured by the network device for the terminal device, and the second quantity is the maximum number of useful RBs supported by the terminal device; The third information is used to determine a first protection band or a second protection band, wherein the first protection band is the protection band configured by the network device for the terminal device, and the second protection band is the minimum protection band supported by the terminal device. The method according to claim 8, wherein, The third information includes one or more of the following: The size of the first protective strip or the size of the second protective strip; The first indication information is the index of the first protective strip or the second protective strip. The method according to any one of claims 2 to 9, wherein, The first information includes: The third protection zone includes a predefined protection zone, a predefined minimum protection zone, or a predefined maximum protection zone. The method according to claim 10, wherein, The second bandwidth includes the first channel bandwidth; The third guard band applies to all possible channel bandwidths; or, The third protection band applies to a first channel bandwidth range, which is one of multiple second channel bandwidth ranges. The first channel bandwidth range includes the first channel bandwidth, and the third protection bands applicable to different second channel bandwidth ranges are different; or... The third protection band corresponds to the second channel bandwidth, which is one of a plurality of third channel bandwidths. Different third channel bandwidths correspond to different third protection bands. The first channel bandwidth is the second channel bandwidth, or the first channel bandwidth is located between two adjacent third channel bandwidths and the second channel bandwidth is the smaller or larger bandwidth of the two adjacent third channel bandwidths. The method according to claim 10, wherein, The second bandwidth includes the first useful channel bandwidth; The third guard band applies to all possible useful channel bandwidths; or... The third guard band applies to a first useful channel bandwidth range, which is one of multiple second useful channel bandwidth ranges. The first useful channel bandwidth range includes the first useful channel bandwidth, and a third guard band applies to different second useful channel bandwidth ranges; or... The third guard band corresponds to the second useful channel bandwidth, which is one of a plurality of third useful channel bandwidths. Different third useful channel bandwidths correspond to different third guard bands. The first useful channel bandwidth is the second useful channel bandwidth, or the first useful channel bandwidth is located between two adjacent third useful channel bandwidths and the second useful channel bandwidth is the smaller or larger bandwidth of the two adjacent third useful channel bandwidths. The method according to any one of claims 1 to 12, wherein, The first channel bandwidth includes the fourth channel bandwidth and / or the fifth channel bandwidth, and the first useful channel bandwidth includes the fourth useful channel bandwidth and / or the fifth useful channel bandwidth; The fourth channel bandwidth is the channel bandwidth of the terminal device; The fifth channel bandwidth is the channel bandwidth of the network device; The fourth useful channel bandwidth is the useful channel bandwidth within the fourth channel bandwidth; The fifth useful channel bandwidth is the useful channel bandwidth within the fifth channel bandwidth. The method according to claim 13, wherein, The fourth channel bandwidth is the same as the fifth channel bandwidth, but the fourth useful channel bandwidth is different from the fifth useful channel bandwidth. The method according to claim 13 or 14, wherein, The fourth useful channel bandwidth is related to the first spectrum utilization rate, and the fifth useful channel bandwidth is related to the second spectrum utilization rate, wherein the first spectrum utilization rate is less than the second spectrum utilization rate. The method according to any one of claims 13 to 15, wherein, The first device is a network device, and the first useful channel bandwidth includes: the fourth useful channel bandwidth and the fifth useful channel bandwidth; the method further includes: The network device aligns the edges of the fourth channel bandwidth with the edges of the fifth channel bandwidth; or, The network device aligns the edges of the fourth useful channel bandwidth with the edges of the fifth useful channel bandwidth. The method according to claim 16, wherein, The network device aligns the edges of the fourth channel bandwidth and the fifth channel bandwidth, including: The network device adjusts the guard band of the fourth channel bandwidth and / or the guard band of the fifth channel bandwidth. The method according to claim 16 or 17, wherein, When the network device aligns the edges of the fourth channel bandwidth and the fifth channel bandwidth, the method further includes: The network device aligns the resource grids of the useful RBs in the fourth useful channel bandwidth and the useful RBs in the fifth useful channel bandwidth. The method according to claim 18, wherein, The network device aligns the resource grids of the useful RBs in the fourth useful channel bandwidth and the useful RBs in the fifth useful channel bandwidth, including: The network device adjusts the third and / or fourth quantities; The third quantity is the number of useful RBs or subcarrier spacings (SCS) included in the fourth useful channel bandwidth; The fourth quantity is the number of useful RBs or SCSs included in the fifth useful channel bandwidth. The method according to any one of claims 1 to 19, wherein, The first device is a network device, and the method further includes: The network device sends a fourth piece of information to the terminal device, the fourth piece of information being used to indicate the second bandwidth. The method according to any one of claims 1 to 19, wherein, The first device is a terminal device, and the method further includes: The terminal device receives a fifth piece of information sent by the network device, the fifth piece of information being used to indicate the first bandwidth. The method according to any one of claims 2 to 4, 6 to 11, and 13 to 21, wherein, The first bandwidth includes the first useful channel bandwidth, and the second bandwidth includes the first channel bandwidth; The first device determines the second bandwidth, including: The first device determines a fifth quantity, which is related to the first information and the first channel bandwidth, and the fifth quantity is the number of useful RBs included in the first useful channel bandwidth. The method according to claim 22, wherein, The fifth quantity is the result of rounding up or down the first value; the first value is determined based on the first channel bandwidth and the first information. The method according to any one of claims 2 to 4, 6 to 11, and 13 to 23, wherein, The second bandwidth includes the first channel bandwidth, which is one of the possible channel bandwidths within the range of the third channel bandwidth. The method according to claim 24, wherein, The third channel bandwidth range is determined based on the minimum and maximum channel bandwidths; or, The third channel bandwidth range is determined based on the predefined sixth channel bandwidth and the predefined seventh channel bandwidth. The method according to claim 24 or 25, wherein, The third channel bandwidth range is determined based on the minimum and maximum channel bandwidths. The possible channel bandwidth is determined based on the minimum channel bandwidth and the first step length, where the first step length is RB or a set third bandwidth. The method according to claim 24 or 25, wherein, The third channel bandwidth range is determined based on the predefined sixth channel bandwidth and the predefined seventh channel bandwidth. The possible channel bandwidth is determined based on the sixth channel bandwidth and the second step size, where the second step size is RB or a set fourth bandwidth. The method according to any one of claims 2, 3, 5 to 10, 12 to 21, wherein, The second bandwidth includes the first useful channel bandwidth, which is one of the possible useful channel bandwidths within the range of the third useful channel bandwidth. The method according to claim 28, wherein, The third useful channel bandwidth range is determined based on the minimum useful channel bandwidth and the maximum useful channel bandwidth; or, The third useful channel bandwidth range is determined based on the predefined sixth useful channel bandwidth and the predefined seventh useful channel bandwidth. The method according to claim 28 or 29, wherein, The third useful channel bandwidth range is determined based on the minimum useful channel bandwidth and the maximum useful channel bandwidth. The possible useful channel bandwidth is determined based on the minimum useful channel bandwidth and a third step size, where the third step size is RB or a set fifth bandwidth. The method according to claim 28 or 29, wherein, The third useful channel bandwidth range is determined based on the predefined sixth useful channel bandwidth and the predefined seventh useful channel bandwidth. The possible useful channel bandwidth is determined based on the sixth useful channel bandwidth and the fourth step size, where the fourth step size is RB or the set sixth bandwidth. The method according to any one of claims 1 to 15, 22 to 31, wherein, The first device is a terminal device, the first useful channel bandwidth includes a fourth useful channel bandwidth, and the method further includes: The terminal device receives and / or transmits signals on the fourth useful channel bandwidth. The method according to any one of claims 1 to 31, wherein, The first device is a network device, the first useful channel bandwidth includes the fifth useful channel bandwidth, and the method further includes: The network device receives and / or transmits signals on the fifth useful channel bandwidth. A first device, comprising: The determining unit is configured to determine a first bandwidth, which is related to a second bandwidth; wherein... The first bandwidth includes the first channel bandwidth, and the second bandwidth includes the first useful channel bandwidth, wherein the first useful channel bandwidth is the maximum transmission bandwidth; or, The first bandwidth includes the first useful channel bandwidth, and the second bandwidth includes the first channel bandwidth. A communication device, comprising: A transceiver, a processor, and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to cooperate with the transceiver in performing the method as described in any one of claims 1 to 33. A chip, comprising: A processor for retrieving and running a computer program from memory, causing a device having the chip mounted to perform the method as described in any one of claims 1 to 33. A computer-readable storage medium for storing a computer program, the execution of which causes a computer to perform the method as described in any one of claims 1 to 33. A computer program product includes computer program instructions, the execution of which causes a computer to perform the method as described in any one of claims 1 to 33. A computer program, the execution of which causes a computer to perform the method as described in any one of claims 1 to 33.

Images