Signal transmission method and device

Abstract

The invention provides a signal transmission method and device, relates to the field of wireless communication, and can improve the frequency utilization rate. The method comprises: a first device receiving indication information, and receiving a wakeup signal WUS on a frequency domain resource of the WUS indicated by the indication information. Wherein the indication information indicates frequency domain resources of the WUS, part or all of the frequency domain resources of the WUS are located in at least one protection bandwidth, and the at least one protection bandwidth is the protection bandwidth in at least one carrier bandwidth of the channel.

Description

Technical Field

[0001] This application relates to the field of wireless communication, and more specifically, to a signal transmission method and apparatus. Background Technology

[0002] In communication systems, packet data services are often bursty, with data transmission occurring frequently for a period followed by a longer period of silence. From a latency perspective, constantly monitoring the physical downlink control channel (PDCCH) to receive uplink scheduling or downlink data minimizes latency. However, constantly monitoring the PDCCH leads to significant power consumption.

[0003] To address the trade-off between latency and power consumption, New Radio (NR) introduced mechanisms such as discontinuous reception (DRX) and wake-up signal (WUS) to reduce the power consumption of terminal devices.

[0004] To further reduce the power consumption of terminal devices, NR began researching wake-up receivers (WURs). Terminal devices can listen to the WUR, and upon detecting a WUS, they can activate the main transceiver to send and receive data. However, the WUS consumes the main transceiver's bandwidth and uses its frequency domain resources, resulting in reduced spectrum utilization of the main transceiver. Summary of the Invention

[0005] This application provides a signal transmission method and apparatus that can improve frequency utilization.

[0006] In a first aspect, embodiments of this application provide a signal transmission method, which can be executed by a first device. Unless otherwise specified, the "first device" in this application can refer to the first device itself, a component within the first device (e.g., a communication module, processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the first device. The method includes: receiving indication information and receiving the WUS on the frequency domain resources of the wake-up signal (WUS) indicated by the indication information. The indication information indicates the frequency domain resources of the WUS, and some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, where the at least one guard bandwidth is the guard bandwidth within at least one carrier bandwidth of the channel.

[0007] Based on this scheme, the first device can receive the WUS based on the frequency domain resources of the WUS configured by the second device for the WUS (i.e., receive the WUS on the frequency domain resources of the WUS). Specifically, some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth within at least one carrier bandwidth (i.e., at least one guard bandwidth is the guard bandwidth within at least one carrier bandwidth of the channel). In other words, when configuring frequency domain resources for the WUS, the second device can consider allocating the guard bandwidth on the carrier bandwidth to the WUS, allowing the WUS to be transmitted on the guard bandwidth. Compared to a scheme that only allocates the transmission bandwidth within the carrier bandwidth for the WUS, this improves the spectral utilization of the carrier bandwidth.

[0008] In one possible design, some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, including: some or all of the frequency domain resources of the WUS are located within a first guard bandwidth, and the at least one guard bandwidth includes the first guard bandwidth.

[0009] In one possible design, when a portion of the frequency domain resources of the WUS are located within the first protection bandwidth, the remaining resources of the frequency domain resources of the WUS, excluding the portion of the resources, are located within the first transmission bandwidth configuration, and the first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth.

[0010] Based on the two possible designs mentioned above, some of the frequency domain resources of WUS can be located within the guard bandwidth. Furthermore, another part of the frequency domain resources of WUS can be located in the transmission bandwidth configuration within the same carrier bandwidth as the guard bandwidth, so that WUS can be transmitted within both the transmission bandwidth configuration and the guard bandwidth. Compared with the scheme of transmitting WUS only in the transmission bandwidth configuration within the carrier bandwidth, the spectrum utilization of the carrier bandwidth can be improved.

[0011] Alternatively, all resources in the frequency domain of WUS can be located within the guard bandwidth, allowing WUS to be transmitted within the guard bandwidth. This improves the spectral efficiency of the carrier bandwidth compared to a scheme that transmits WUS only within the transmission bandwidth configuration of the carrier bandwidth.

[0012] In one possible design, before receiving the indication information, the method further includes: sending first capability information indicating that the first device supports the ability to simultaneously receive signals in a protection bandwidth and a transmission bandwidth configuration, the protection bandwidth and the transmission bandwidth configuration being located within the same carrier bandwidth.

[0013] In one possible design, the first capability information indicates that the first device supports the ability to simultaneously receive signals on both a protection bandwidth and a transmission bandwidth configuration, including: the first capability information indicating whether the first device supports simultaneously receiving signals on both a protection bandwidth and a transmission bandwidth configuration; or, the first capability information indicating the size of the protection bandwidth and the size of the transmission bandwidth configuration supported by the first device, wherein the protection bandwidth and transmission bandwidth configuration are used for the first device to simultaneously receive signals.

[0014] Based on the two possible designs described above, the first device can report first capability information to the second device, enabling the second device to configure appropriate frequency domain resources for WUS based on the first capability information; thereby avoiding the first device being unable to receive WUS on the frequency domain resources of WUS configured by the second device, and providing a possible implementation method for the first device to successfully receive WUS.

[0015] In one possible design, all resources in the frequency domain of the WUS are located within a first guard bandwidth; the first guard bandwidth is located within an uplink carrier bandwidth, and at least one carrier bandwidth includes the uplink carrier bandwidth; or, the first guard bandwidth is located within a downlink carrier bandwidth, and at least one carrier bandwidth includes the downlink carrier bandwidth.

[0016] In one possible design, before receiving the indication information, the method further includes: sending second capability information indicating that the first device supports the ability to receive signals over the protection bandwidth.

[0017] In one possible design, the second capability information indicates that the first device supports the ability to receive signals over a guard bandwidth, including: the second capability information indicating whether the first device supports receiving signals over a guard bandwidth; or, the second capability information indicating the size of the guard bandwidth supported by the first device, the guard bandwidth being used by the first device to receive signals.

[0018] In one possible design, the second capability information indicates that the first device supports the ability to receive signals on the guard bandwidth, including: the second capability information indicates that the first device supports the ability to receive signals on the guard bandwidth in the uplink carrier bandwidth; and / or, the second capability information indicates that the first device supports the ability to receive signals on the guard bandwidth in the downlink carrier bandwidth.

[0019] Based on the above three possible designs, the first device can report the second capability information to the second device, so that the second device can configure appropriate WUS frequency domain resources based on the second capability information; thereby avoiding the first device being unable to receive WUS on the WUS frequency domain resources configured by the second device, and providing another possible implementation method for the first device to successfully receive WUS.

[0020] In one possible design, some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, including: some or all of the frequency domain resources of the WUS are located within a first guard bandwidth and a second guard bandwidth, the at least one guard bandwidth includes the first guard bandwidth and the second guard bandwidth, and the first guard bandwidth and the second guard bandwidth are located within adjacent carrier bandwidths.

[0021] In one possible design, some of the frequency domain resources of the WUS are located within the first protection bandwidth and the second protection bandwidth, and the remaining resources of the frequency domain resources of the WUS, excluding some resources, are located within the first transmission bandwidth configuration. The first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth.

[0022] Based on the two possible designs mentioned above, some of the frequency domain resources of WUS can be located within multiple guard bandwidths. Furthermore, another part of the frequency domain resources of WUS can be located in a transmission bandwidth configuration within the same carrier bandwidth as one of the multiple guard bandwidths. This allows WUS to be transmitted within both the transmission bandwidth configuration and the guard bandwidth. Compared to a scheme that transmits WUS only within the transmission bandwidth configuration of the carrier bandwidth, this improves the spectral utilization of the carrier bandwidth.

[0023] Alternatively, all resources in the frequency domain of WUS can be located within multiple guard bandwidths, allowing WUS to be transmitted within multiple guard bandwidths. This improves the spectral efficiency of the carrier bandwidth compared to a scheme that transmits WUS only within the carrier bandwidth. Furthermore, since WUS can be transmitted within multiple guard bandwidths, this increases the flexibility of configuring WUS compared to a scheme that transmits WUS within a single guard bandwidth.

[0024] In one possible design, a portion of the frequency domain resources is used to carry the WUS, and the frequency domain resources of the WUS also include a third guard bandwidth and / or a fourth guard bandwidth, which are located at opposite ends of the portion of the resources.

[0025] Based on this possible design, it is understood that the guard bandwidth can be used to reduce interference between signals; therefore, the frequency domain resources of WUS may include a third guard bandwidth and / or a fourth guard bandwidth, which can be used to isolate interference between WUS and other signals besides WUS, thereby improving the reception performance of WUS.

[0026] In one possible design, the width of the third guard bandwidth is greater than or equal to C frequency domain units, or the sum of the widths of the intervals between the third guard bandwidth and the signals in the first transmission bandwidth configuration is greater than or equal to C frequency domain units, the frequency domain resources of the WUS are located within the first guard bandwidth, the first guard bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth, and C is a positive integer greater than or equal to 1; and / or, the width of the fourth guard bandwidth is greater than or equal to C frequency domain units, or the sum of the widths of the intervals between the fourth guard bandwidth and the signals in the second transmission bandwidth configuration is greater than or equal to C frequency domain units, and the first transmission bandwidth configuration and the second transmission bandwidth configuration are located within adjacent carrier bandwidths.

[0027] Based on this possible design, the width of the third guard bandwidth is greater than or equal to C frequency domain units, or the sum of the widths of the intervals between the third guard bandwidth and the signals in the first transmission bandwidth configuration is greater than or equal to C frequency domain units, so that the interval between the WUS and the signals in the first transmission bandwidth configuration is greater than or equal to C frequency domain units. And / or, the width of the fourth guard bandwidth is greater than or equal to C frequency domain units, or the sum of the widths of the intervals between the fourth guard bandwidth and the signals in the second transmission bandwidth configuration is greater than or equal to C frequency domain units, so that the interval between the WUS and the signals in the second transmission bandwidth configuration is greater than or equal to C frequency domain units. These C frequency domain units can be used to isolate interference between the WUS and other signals besides the WUS, thereby reducing interference between signals and improving the reception performance of the WUS.

[0028] In one possible design, before receiving the indication information, the method further includes: sending third capability information, the third capability information indicating whether the first device supports the absence of a guard bandwidth within the frequency domain resources of WUS, and / or indicating the value of C supported by the first device.

[0029] Based on this possible design, the first device can report third capability information to the second device, enabling the second device to configure appropriate third and / or fourth protection bandwidths based on the third capability information, thereby determining the frequency domain resources of WUS; thus avoiding the first device being unable to receive WUS on the frequency domain resources of WUS configured by the second device, providing another possible implementation method for the first device to successfully receive WUS.

[0030] In one possible design, the size of the first frequency domain unit is related to the size of the second frequency domain unit; wherein the first frequency domain unit is any one of at least one frequency domain unit included in the frequency domain resources of WUS, and the second frequency domain unit is one frequency domain unit in a set of frequency domain units; the set of frequency domain units includes at least one frequency domain unit within a first transmission bandwidth configuration, the first transmission bandwidth configuration and the first protection bandwidth are located within the same carrier bandwidth, and the at least one protection bandwidth includes the first protection bandwidth; or, the set of frequency domain units includes at least one frequency domain unit within a first transmission bandwidth configuration and at least one frequency domain unit within a second transmission bandwidth configuration, the second transmission bandwidth configuration and the second protection bandwidth are located within the same carrier bandwidth, and the at least one protection bandwidth also includes the second protection bandwidth.

[0031] In one possible design, the first frequency domain unit is less than or equal to the second frequency domain unit; wherein the second frequency domain unit is a frequency domain unit in a set of frequency domain units, including: the second frequency domain unit is any one of the frequency domain units in the set of frequency domain units; the set of frequency domain units includes at least one frequency domain unit for constituting the first transmission bandwidth configuration, and the second frequency domain unit is the frequency domain unit among the at least one frequency domain unit for constituting the first transmission bandwidth configuration that is closest in frequency to the frequency domain resources of WUS; or, the set of frequency domain units includes at least one frequency domain unit for constituting the first transmission bandwidth configuration and at least one frequency domain unit for constituting the second transmission bandwidth configuration, the second frequency domain unit is any one of the at least one frequency domain units included in the third transmission bandwidth configuration, and the third transmission bandwidth configuration is the transmission bandwidth configuration among the first transmission bandwidth configuration and the second transmission bandwidth configuration that is closest in frequency to the frequency domain resources of WUS.

[0032] In one possible design, the first frequency domain unit is less than or equal to the second frequency domain unit; wherein the second frequency domain unit is a frequency domain unit in a set of frequency domain units, including: the second frequency domain unit is any one of at least one frequency domain units within the first partial bandwidth BWP, and the first BWP is a BWP in at least one BWP in the set of frequency domain units.

[0033] Based on the three possible designs described above, it is understandable that having the same frequency domain unit (e.g., subcarrier width) for two frequency domain resources can reduce interference between signals carried on these two resources. Therefore, when the first frequency domain unit equals the second frequency domain unit, interference between signals can be reduced. When the first frequency domain unit is smaller than the second frequency domain unit, compared to the scheme where the first frequency domain unit equals the second, the WUS has a smaller frequency domain resource and occupies a smaller BWP in the carrier bandwidth, thus improving the flexibility of configuring the WUS's frequency domain resources in the second device. Furthermore, because the WUS's frequency domain resource occupies a smaller BWP in the carrier bandwidth, compared to the scheme where the first frequency domain unit equals the second, it can also increase the spacing between the WUS and other signal frequency domain resources, thereby reducing interference between signals.

[0034] In one possible design, the first BWP is any one of at least one BWP; or, the first BWP is the BWP with the frequency closest to the frequency domain resource of WUS among at least one BWP; or, the first BWP is the largest BWP among at least one BWP; or, the first BWP is the smallest BWP among at least one BWP; or, the first BWP is the BWP with the largest frequency domain unit among at least one BWP; or, the first BWP is the BWP with the smallest frequency domain unit among at least one BWP.

[0035] Secondly, embodiments of this application provide a signal transmission method, which can be executed by a second device. Unless otherwise specified, the "second device" in this application can refer to the second device itself, a component within the second device (e.g., a communication module, processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the second device. The method includes: determining indication information and sending the indication information. The indication information indicates frequency domain resources of the WUS, where some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, and the at least one guard bandwidth is the guard bandwidth within at least one carrier bandwidth of the channel.

[0036] Based on this scheme, the second device can configure the frequency domain resources of WUS for the first device, enabling the first device to receive WUS on the frequency domain resources of WUS. Specifically, some or all of the frequency domain resources of WUS are located within at least one guard bandwidth within at least one carrier bandwidth (i.e., at least one guard bandwidth is the guard bandwidth within at least one carrier bandwidth of the channel). In other words, when configuring frequency domain resources for WUS, the second device can consider allocating the guard bandwidth on the carrier bandwidth to WUS, allowing WUS to be transmitted on the guard bandwidth. Compared to a scheme that only allocates the transmission bandwidth within the carrier bandwidth for WUS transmission, this improves the spectral utilization of the carrier bandwidth.

[0037] In one possible design, some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, including: some or all of the frequency domain resources of the WUS are located within a first guard bandwidth, and the at least one guard bandwidth includes the first guard bandwidth.

[0038] In one possible design, when a portion of the frequency domain resources of the WUS are located within the first protection bandwidth, the remaining resources of the frequency domain resources of the WUS, excluding the portion of the resources, are located within the first transmission bandwidth configuration, and the first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth.

[0039] In one possible design, sending indication information includes: sending indication information to a first device; before determining the indication information, the method further includes: receiving first capability information, the first capability information indicating that the first device supports the ability to simultaneously receive signals in a guard bandwidth and a transmission bandwidth configuration, the guard bandwidth and the transmission bandwidth configuration being located within the same carrier bandwidth.

[0040] In one possible design, the first capability information indicates that the first device supports the ability to simultaneously receive signals on both a protection bandwidth and a transmission bandwidth configuration, including: the first capability information indicating whether the first device supports simultaneously receiving signals on both a protection bandwidth and a transmission bandwidth configuration; or, the first capability information indicating the size of the protection bandwidth and the size of the transmission bandwidth configuration supported by the first device, wherein the protection bandwidth and transmission bandwidth configuration are used for the first device to simultaneously receive signals.

[0041] In one possible design, all resources in the frequency domain of the WUS are located within a first guard bandwidth; the first guard bandwidth is located within an uplink carrier bandwidth, and at least one carrier bandwidth includes the uplink carrier bandwidth; or, the first guard bandwidth is located within a downlink carrier bandwidth, and at least one carrier bandwidth includes the downlink carrier bandwidth.

[0042] In one possible design, sending indication information includes: sending indication information to a first device; prior to determining the indication information, the method further includes: receiving second capability information, the second capability information indicating that the first device supports the capability to receive signals over a protection bandwidth.

[0043] In one possible design, the second capability information indicates that the first device supports the ability to receive signals over a guard bandwidth, including: the second capability information indicating whether the first device supports receiving signals over a guard bandwidth; or, the second capability information indicating the size of the guard bandwidth supported by the first device, the guard bandwidth being used by the first device to receive signals.

[0044] In one possible design, the second capability information indicates that the first device supports the ability to receive signals on the guard bandwidth, including: the second capability information indicates that the first device supports the ability to receive signals on the guard bandwidth in the uplink carrier bandwidth; and / or, the second capability information indicates that the first device supports the ability to receive signals on the guard bandwidth in the downlink carrier bandwidth.

[0045] In one possible design, some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, including: some or all of the frequency domain resources of the WUS are located within a first guard bandwidth and a second guard bandwidth, the at least one guard bandwidth includes the first guard bandwidth and the second guard bandwidth, and the first guard bandwidth and the second guard bandwidth are located within adjacent carrier bandwidths.

[0046] In one possible design, some of the frequency domain resources of the WUS are located within the first protection bandwidth and the second protection bandwidth, and the remaining resources of the frequency domain resources of the WUS, excluding some resources, are located within the first transmission bandwidth configuration. The first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth.

[0047] In one possible design, a portion of the frequency domain resources is used to carry the WUS, and the frequency domain resources of the WUS also include a third guard bandwidth and / or a fourth guard bandwidth, which are located at opposite ends of the portion of the resources.

[0048] Optionally, the width of the third protection bandwidth is greater than or equal to C frequency domain units, or the sum of the widths of the intervals between the third protection bandwidth and the signals in the first transmission bandwidth configuration is greater than or equal to C frequency domain units, the frequency domain resources of WUS are located within the first protection bandwidth, the first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth, and C is a positive integer greater than or equal to 1; and / or, the width of the fourth protection bandwidth is greater than or equal to C frequency domain units, or the sum of the widths of the intervals between the fourth protection bandwidth and the signals in the second transmission bandwidth configuration is greater than or equal to C frequency domain units, and the first transmission bandwidth configuration and the second transmission bandwidth configuration are located within adjacent carrier bandwidths.

[0049] In one possible design, sending indication information includes: sending indication information to a first device; before determining the indication information, the method further includes: receiving third capability information, the third capability information indicating whether the first device supports the absence of a guard bandwidth within the frequency domain resources of WUS, and / or indicating the value of C supported by the first device.

[0050] In one possible design, the size of the first frequency domain unit is related to the size of the second frequency domain unit; wherein the first frequency domain unit is any one of at least one frequency domain unit included in the frequency domain resources of WUS, and the second frequency domain unit is one frequency domain unit in a set of frequency domain units; the set of frequency domain units includes at least one frequency domain unit within a first transmission bandwidth configuration, the first transmission bandwidth configuration and the first protection bandwidth are located within the same carrier bandwidth, and the at least one protection bandwidth includes the first protection bandwidth; or, the set of frequency domain units includes at least one frequency domain unit within a first transmission bandwidth configuration and at least one frequency domain unit within a second transmission bandwidth configuration, the second transmission bandwidth configuration and the second protection bandwidth are located within the same carrier bandwidth, and the at least one protection bandwidth also includes the second protection bandwidth.

[0051] In one possible design, the first frequency domain unit is less than or equal to the second frequency domain unit; wherein the second frequency domain unit is a frequency domain unit in a set of frequency domain units, including: the second frequency domain unit is any one of the frequency domain units in the set of frequency domain units; the set of frequency domain units includes at least one frequency domain unit for constituting the first transmission bandwidth configuration, and the second frequency domain unit is the frequency domain unit among the at least one frequency domain unit for constituting the first transmission bandwidth configuration that is closest in frequency to the frequency domain resources of WUS; or, the set of frequency domain units includes at least one frequency domain unit for constituting the first transmission bandwidth configuration and at least one frequency domain unit for constituting the second transmission bandwidth configuration, the second frequency domain unit is any one of the at least one frequency domain units included in the third transmission bandwidth configuration, and the third transmission bandwidth configuration is the transmission bandwidth configuration among the first transmission bandwidth configuration and the second transmission bandwidth configuration that is closest in frequency to the frequency domain resources of WUS.

[0052] In one possible design, the first frequency domain unit is less than or equal to the second frequency domain unit; wherein the second frequency domain unit is a frequency domain unit in a set of frequency domain units, including: the second frequency domain unit is any one of at least one frequency domain unit within a first bandwidth part (BWP), and the first BWP is a BWP in at least one BWP in the set of frequency domain units.

[0053] In one possible design, the first BWP is any one of at least one BWP; or, the first BWP is the BWP with the frequency closest to the frequency domain resource of WUS among at least one BWP; or, the first BWP is the largest BWP among at least one BWP; or, the first BWP is the smallest BWP among at least one BWP; or, the first BWP is the BWP with the largest frequency domain unit among at least one BWP; or, the first BWP is the BWP with the smallest frequency domain unit among at least one BWP.

[0054] The technical effects of any design in the second aspect can be referenced from the technical effects of the corresponding design in the first aspect, and will not be elaborated here.

[0055] Thirdly, a communication device is provided for implementing various methods. This communication device can be a first device as described in the first aspect, or a second device as described in the second aspect, or a device included in the first or second device, such as a chip or chip system. The communication device includes modules, units, or means corresponding to the implementation of the methods, which can be implemented in hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the functions.

[0056] In some possible designs, the communication device may include a processing module and a transceiver module. The processing module can be used to implement the processing functions in any of the above aspects and any possible implementations thereof. The transceiver module may include a receiving module and a transmitting module, respectively used to implement the receiving function and the transmitting function in any of the above aspects and any possible implementations thereof.

[0057] In some possible designs, the transceiver module can consist of transceiver circuits, transceivers, transceivers, or communication interfaces.

[0058] Fourthly, a communication device is provided, comprising: a processor and a memory; the memory is used to store computer instructions, which, when executed by the processor, cause the communication device to perform the method described in any aspect. The communication device may be a first device as described in the first aspect, or a second device as described in the second aspect, or a device included in the first or second device, such as a chip or chip system. The communication device includes modules, units, or means corresponding to the implementation of the method, which may be implemented in hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the function.

[0059] Fifthly, a communication device is provided, comprising: a processor and a communication interface; the communication interface being used to communicate with a module outside the communication device; the processor being used to execute computer programs or instructions to cause the communication device to perform the method described in any aspect. The communication device may be a first device as described in the first aspect, or a second device as described in the second aspect, or a device included in the first or second device, such as a chip or chip system. The communication device includes modules, units, or means corresponding to the implementation of the method, which may be implemented in hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the functions.

[0060] A sixth aspect provides a communication device, comprising: at least one processor; the processor being configured to execute a computer program or instructions to cause the communication device to perform the method described in any aspect. The communication device may be a first device as described in the first aspect, or a second device as described in the second aspect, or a device included in the first or second device, such as a chip or chip system. The communication device includes modules, units, or means corresponding to the implementation of the method, which may be implemented in hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the functions.

[0061] In some possible designs, the communication device includes a memory for storing necessary program instructions and data. This memory may be coupled to the processor, or it may be independent of the processor.

[0062] In some possible designs, when the device is a chip system, it can be composed of chips or contain chips and other discrete components.

[0063] It is understandable that when the communication device provided in any of the fifth to sixth aspects is a chip, the sending action / function of the communication device can be understood as outputting information, and the receiving action / function of the communication device can be understood as inputting information.

[0064] In a seventh aspect, a computer-readable storage medium is provided that stores a computer program or instructions that, when executed on a communication device, enable the communication device to perform the method described in any aspect.

[0065] In an eighth aspect, a computer program product containing instructions is provided, which, when run on a communication device, enables the communication device to perform the method described in either aspect.

[0066] In a ninth aspect, a communication system is provided, the communication system comprising a first device (or means included in the first device, such as a chip or chip system) as in the first aspect and a second device (or means included in the second device, such as a chip or chip system) as in the second aspect.

[0067] The technical effects of any of the design methods in aspects three through nine can be found in the technical effects of different design methods in aspects one or two above, and will not be repeated here. Attached Figure Description

[0068] Figure 1 A schematic diagram of a carrier bandwidth structure provided in an embodiment of this application;

[0069] Figure 2 A schematic diagram of the working principle of WUS provided in this application embodiment;

[0070] Figure 3 A schematic diagram of a frequency domain resource of WUS provided in an embodiment of this application;

[0071] Figure 4 This application provides a schematic diagram of the architecture of a communication system.

[0072] Figure 5 This is a schematic diagram of the architecture of another communication system provided in an embodiment of this application;

[0073] Figure 6 A schematic diagram of the architecture of a communication device provided in an embodiment of this application;

[0074] Figure 7 A schematic flowchart illustrating a signal transmission method provided in an embodiment of this application;

[0075] Figure 8 A flowchart illustrating another signal transmission method provided in an embodiment of this application;

[0076] Figure 9 A schematic diagram of another frequency domain resource of WUS provided in an embodiment of this application;

[0077] Figure 10 A schematic flowchart illustrating another signal transmission method provided in an embodiment of this application;

[0078] Figure 11 A schematic diagram of another frequency domain resource of WUS provided in an embodiment of this application;

[0079] Figure 12 A schematic flowchart illustrating another signal transmission method provided in an embodiment of this application;

[0080] Figure 13 This is a schematic diagram of another carrier bandwidth structure provided in an embodiment of this application;

[0081] Figure 14 A schematic diagram of another frequency domain resource of WUS provided in an embodiment of this application;

[0082] Figure 15 A schematic diagram of another frequency domain resource of WUS provided in an embodiment of this application;

[0083] Figure 16 A schematic diagram of another frequency domain resource of WUS provided in an embodiment of this application;

[0084] Figure 17A schematic flowchart illustrating another signal transmission method provided in an embodiment of this application;

[0085] Figure 18 A schematic diagram of the architecture of another communication device provided in the embodiments of this application;

[0086] Figure 19 This is a schematic diagram of the architecture of another communication device provided in the embodiments of this application. Detailed Implementation

[0087] In the description of this application, unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship. For example, A / B can mean A or B. "And / or" in this application is merely a description of the relationship between the related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. A and B can be singular or plural.

[0088] In the description of this application, unless otherwise stated, "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of a single item or a plurality of items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0089] Furthermore, to facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with substantially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" are not necessarily different.

[0090] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner to facilitate understanding.

[0091] It is understood that the term "embodiment" used throughout the specification means that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this application. Therefore, various embodiments throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It is understood that in the various 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.

[0092] It is understood that the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0093] It is understood that in this application, "...when" and "if" both refer to the corresponding processing that will be carried out under certain objective circumstances, and are not limited to a specific time, nor do they require a judgment action to be performed during implementation, nor do they imply any other limitations.

[0094] It is understood that some optional features in the embodiments of this application can be implemented independently in certain scenarios without relying on other features, such as the current solution on which they are based, to solve the corresponding technical problems and achieve the corresponding effects. Alternatively, they can be combined with other features as needed in certain scenarios. Correspondingly, the apparatus given in the embodiments of this application can also implement these features or functions, which will not be elaborated here.

[0095] It is understood that in this application, "instruction" can include direct and indirect instructions, as well as explicit and implicit instructions. When describing "a certain instruction information instructs A" or "instruction information of A," it can include whether the instruction information directly or indirectly instructs A, but does not necessarily mean that the instruction information carries A. The information indicated by a certain piece of information is called the information to be instructed. In the specific implementation process, there are many ways to instruct the information to be instructed, such as, but not limited to, directly instructing the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly instruct the information to be instructed by instructing other information, where there is a relationship between the other information and the information to be instructed. It can also instruct only a part of the information to be instructed, while the other parts are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various information, thereby reducing instruction overhead to some extent. At the same time, the common parts of various information can be identified and uniformly indicated to reduce the instruction overhead caused by individually indicating the same information. Furthermore, the specific instruction method can also be any existing instruction method, such as, but not limited to, the above-mentioned instruction methods and their various combinations. As described above, for example, when multiple pieces of information of the same type need to be indicated, the indication methods for different pieces of information may differ. In specific implementation, the required indication method can be selected according to specific needs. This application embodiment does not limit the selected indication method; therefore, the indication methods involved in this application embodiment should be understood to cover various methods that enable the party to be indicated to obtain the information to be indicated. The information to be indicated can be sent as a whole or divided into multiple sub-information pieces and sent separately. Furthermore, the sending period or timing of these sub-information pieces can be the same or different. This application does not limit the specific sending method. The sending period or timing of these sub-information pieces can be predefined, for example, predefined according to a protocol, or configured by the transmitting device by sending configuration information to the receiving device.

[0096] In this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which can include direct transmission via the air interface or indirect transmission via the air interface from other units or modules. "Receive information from YY" can be understood as the source of the information being YY, which can include direct reception from YY via the air interface or indirect reception from YY via the air interface from other units or modules. "Send" can also be understood as the "output" of a chip interface, and "receive" can also be understood as the "input" of a chip interface. In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via buses, traces, or interfaces.

[0097] In this application, unless otherwise specified, the same or similar parts between the various embodiments can be referred to each other. Unless otherwise specified or logically conflicting, the terminology and / or descriptions between different embodiments are consistent and can be mutually referenced. Different embodiments can be combined to form new embodiments based on their inherent logical relationships. The following descriptions of the embodiments of this application do not constitute a limitation on the scope of protection of this application.

[0098] To facilitate understanding of the technical solutions in the embodiments of this application, a brief introduction to the relevant technologies of this application is given below:

[0099] 1. Resource block (RB):

[0100] In radio resources, the smallest resource granularity in the time domain can be an orthogonal frequency division multiplexing (OFDM) symbol, often simply referred to as a symbol. In the frequency domain, the smallest resource granularity can be a subcarrier. An OFDM symbol and a subcarrier together constitute a resource element (RE), and a slot and 12 consecutive subcarriers in the frequency domain constitute a resource block (RB). A slot can include multiple consecutive OFDM symbols in the time domain; for example, a slot may include 12 or 14 consecutive OFDM symbols.

[0101] 2. Carrier, frequency point, subcarrier:

[0102] Carrier: refers to a radio signal (or electromagnetic wave) with a specific bandwidth, which is the main component used to carry information. The carrier bandwidth refers to the difference between the highest and lowest frequencies of the carrier.

[0103] The carrier frequency refers to the center frequency of the carrier.

[0104] Subcarrier: A carrier can be decomposed into multiple subcarriers. In existing communication systems, five subcarrier intervals are defined: 15kHz, 30kHz, 60kHz, 120kHz, and 240kHz. The subcarrier interval can be understood as the frequency range of the subcarrier, or the difference between the highest and lowest frequencies of the subcarrier. Different subcarrier intervals correspond to different slot lengths. For example, when the subcarrier interval is 15kHz, the slot length is 1ms; when the subcarrier interval is 30kHz, the slot length is 0.5ms; when the subcarrier interval is 60kHz, the slot length is 0.25ms; when the subcarrier interval is 120kHz, the slot length is 0.125ms; and when the subcarrier interval is 240kHz, the slot length is 0.0625ms. The above subcarrier intervals are merely examples, and this application does not impose specific restrictions on the values ​​of the subcarrier intervals.

[0105] Subcarrier frequency: refers to the center frequency of the subcarrier.

[0106] 3. Carrier bandwidth:

[0107] Carrier bandwidth can also be called channel bandwidth; or, it can also be called carrier-channel bandwidth. For example... Figure 1 As shown in (a), the carrier bandwidth consists of a transmission bandwidth configuration and a guard band (which can also be simply referred to as a guard band). The transmission bandwidth configuration refers to the bandwidth available for normal use, while the guard band is used to suppress leakage from adjacent channels and reduce the error vector magnitude (EVM). The guard band is located at the channel edge; that is, it is located at both ends of the transmission bandwidth configuration. In other words, a carrier bandwidth consists of one transmission bandwidth configuration and two guard bands, with the two guard bands located at opposite ends of the transmission bandwidth configuration. Furthermore, the two guard bands can be the same or different in size. That is, the guard bands located at both ends of the transmission bandwidth configuration can be symmetrical or asymmetrical, which is not limited in this application.

[0108] A transmission bandwidth configuration includes N RB There are N RBs. RBThe value of N is related to the carrier bandwidth and the subcarrier spacing (SCS). For example, the carrier bandwidth can be 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, 25MHz, 30MHz, 35MHz, 40MHz, 45MHz, 50MHz, 60MHz, 70MHz, 80MHz, 90MHz, or 100MHz. The SCS can be 15kHz, 30kHz, or 60kHz. In this case, N... RB The possible values ​​for are shown in Table 1:

[0109] Table 1

[0110]

[0111] As shown in Table 1, when the carrier bandwidth is 3MHz and the SCS is 15kHz, N RB =15; similarly, when the carrier bandwidth is 5MHz and the SCS is 15kHz, N RB =25; When the carrier bandwidth is 10MHz and the SCS is 15kHz, N RB =52; ...; When the carrier bandwidth is 100MHz and the SCS is 60kHz, N RB =135.

[0112] Correspondingly, the size of the guard bandwidth is also related to the carrier bandwidth and the SCS. Specifically, the size of the guard bandwidth is shown in Table 2:

[0113] Table 2

[0114]

[0115] As shown in Table 2, when the carrier bandwidth is 3MHz and the SCS is 15kHz, the protection bandwidth is 142.5kHz; similarly, when the carrier bandwidth is 5MHz and the SCS is 15kHz, the protection bandwidth is 242.5kHz; when the carrier bandwidth is 10MHz and the SCS is 15kHz, the protection bandwidth is 312.5kHz; ...; when the carrier bandwidth is 100MHz and the SCS is 60kHz, the protection bandwidth is 1370kHz.

[0116] Multiple bandwidth parts (BWPs) can be configured within a single transmission bandwidth configuration. Devices can transmit information within active BWPs. Different BWPs can partially overlap or not overlap at all. For example, if BWP#1 and BWP#2 do not overlap at all, then BWP#1 and BWP#2 can transmit information as follows: Figure 1 As shown in (b) of the diagram.

[0117] 4. Wake-up signal (WUS):

[0118] Data streams are typically bursty, with data transmission and / or reception occurring for a period of time, followed by periods of inactivity. Therefore, to save power, terminal devices employ low-power wake-up receivers (LP-WURs) to receive the WUS. The WUS is used to wake up the main radio. Since the LP-WUR consumes significantly less power than the main radio, it greatly reduces the power consumption of the terminal device.

[0119] For example, taking WUS as a low-power wake-up signal (LP-WUS) as an example, such as Figure 2 As shown, when data needs to be sent, the base station can first send an LP-WUS to the terminal device, which can then receive the LP-WUS using an LP-WUR. Upon receiving the LP-WUS, the base station wakes up the master transceiver, enabling it to receive the data stream.

[0120] The LP-WUR transmits on the same carrier as the main transceiver, and the LP-WUR and other signals on this carrier (i.e., signals transmitted on the main transceiver, such as data signals) are frequency-division multiplexed. Therefore, a certain guard band is reserved between the LP-WUR and other signals to isolate the influence of other signals on the wake-up signal, making it convenient for WUS to use the LP-WUR for reception.

[0121] It is understandable that, in order to avoid mutual interference or influence between two signals, a certain interval needs to be maintained between the two frequency domain resources (i.e., the frequency domain resources used to carry the two signals) when configuring the frequency domain resources of these two signals. This interval can be called the signal interval; or it can be called by other names, which are not limited in this application.

[0122] like Figure 3 As shown, WUS and other signals are transmitted within the same transmission bandwidth configuration; that is, the base station can configure WUS resources from the transmission bandwidth configuration. WUS resources include resources used to carry WUS and guard bandwidths located on both sides of these resources. LP-WUR can use a filter to separate WUS for separate processing. The guard bandwidth can serve as a transition band for the filter.

[0123] As can be seen from the above, WUS occupies the bandwidth of the main transceiver (i.e., the bandwidth of other signals transmitted by the main transceiver) and uses the frequency domain resources of the main transceiver, thereby reducing the spectrum utilization of the main transceiver; in addition, the WUS resources also include guard bands, which further reduces the spectrum utilization of the carrier bandwidth.

[0124] In view of this, embodiments of this application provide a signal transmission method and apparatus, wherein a first device can receive a WUS based on the frequency domain resources of the WUS configured by a second device for the WUS (i.e., receive the WUS on the frequency domain resources of the WUS). Wherein, some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth within at least one carrier bandwidth (i.e., at least one guard bandwidth is the guard bandwidth within at least one carrier bandwidth of the channel); that is, when configuring frequency domain resources for the WUS, the second device can consider configuring the guard bandwidth on the carrier bandwidth for the WUS, so that the WUS can be transmitted on the guard bandwidth. Compared with a scheme that only transmits the WUS on the transmission bandwidth within the carrier bandwidth, this can improve the spectral utilization of the carrier bandwidth.

[0125] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0126] The signal transmission method provided in this application embodiment can be used in any communication system, such as a third-generation partnership project (3GPP) communication system, for example, a long-term evolution (LTE) system; or a fifth-generation (5G) mobile communication system; a system combining a long-term evolution (LTE) system and a 5G hybrid network; a new radio (NR) system; a vehicle-to-everything (V2X) system; a device-to-device (D2D) communication system; a machine-to-machine (M2M) communication system; an Internet of Things (IoT) system; a narrowband Internet of Things (NB-IoT) system; a global system for mobile communications (GSM); an enhanced data rate for GSM evolution (EDGE) system; a wideband code division multiple access (WCDMA) system; and a code division multiple access 2000 system. Multiple access (CDMA2000), time division-synchronization code division multiple access (TD-SCDMA), enhanced mobile broadband (eMBB), ultra-reliable and low-latency communication (URLLC), enhanced machine-type communication (eMTC), and various types of future communication systems are also included. Alternatively, non-terrestrial network (NTN) systems (such as satellite communication systems) and non-3GPP communication systems are also included without restriction.

[0127] The following is based on Figure 4 Taking an example, the communication system provided in the embodiments of this application will be described.

[0128] Figure 4 A schematic diagram of a communication system provided in an embodiment of this application is shown below. Figure 4 As shown, the communication system may include at least one first device and at least one second device.

[0129] The second device is used to configure the frequency domain resources of WUS and send WUS to the first device on the frequency domain resources; the first device is used to receive WUS and use WUS to wake up the master transceiver.

[0130] For example, the first device can be a terminal device, and the second device can be a network device. Alternatively, the first device can be a terminal device, and the second device can be a terminal device. Alternatively, the first device can be a network device, and the second device can be a network device. Alternatively, the first device can be a network device, and the second device can be a terminal device.

[0131] Optionally, the network device in this application is a device that connects a terminal device to a wireless network. The network device can be a node in a wireless access network, also known as a base station, or a radio access network (RAN) node (or device).

[0132] For example, network equipment may include evolved base stations (NodeBs, eNBs, or e-NodeBs) in LTE systems or evolved LTE-A systems, such as traditional macro base stations (eNBs) and micro base stations (eNBs) in heterogeneous network scenarios. Alternatively, it may include transmission reception points (TRPs), home base stations (e.g., home evolved NodeBs, or home Node Bs, HNBs), base band units (BBUs), base band pools, or wireless fidelity (WiFi) access points (APs). Alternatively, it may include base stations in non-terrestrial networks (NTNs), i.e., those deployed on high-altitude platforms or satellites. In NTNs, network equipment can act as Layer 1 (L1) relays, base stations, distributed units (DUs), or integrated access and backhaul (IAB) nodes. Alternatively, it can be a gateway station or a ground station. Alternatively, the network device can be a device that implements base station functions in IoT, such as a device that implements base station functions in V2X, D2D, or machine-to-machine (M2M) communication. Alternatively, it can include in-vehicle devices or wearable devices. Alternatively, it can include network devices in 5G networks or public land mobile networks (PLMNs) that evolve from 5G. The embodiments of this application are not limited.

[0133] In some implementations, a network device can be understood as the network device itself, or a component in the network device (e.g., a communication device, communication module, processor, circuit, chip, or chip system), or it can be a logic module or software that can implement all or part of the functions of the network device.

[0134] In some embodiments, the network device may also include a communication module, circuit, or chip that performs the corresponding communication function. The network device may also be configured with program instructions for performing the corresponding communication function and corresponding program instructions. The network device in this application may also be a logical node, logical module, or software capable of implementing all or part of the functions of a network device.

[0135] In some possible scenarios, the network device in this application embodiment can also be a module or unit capable of implementing some functions of a base station. For example, the network device may include a centralized unit (CU) and a distributed unit (DU). This includes RAN equipment for CU and DU nodes that separates the protocol layer of the base station (gNB) in the NR system. Some protocol layer functions are centrally controlled by the CU, while the remaining partial or complete protocol layer functions are distributed in the DU, which is centrally controlled by the CU. Furthermore, the CU can be divided into a control plane (centralized unit control plane, CU-CP) and a user plane (centralized unit user plane, CU-UP). The CU-CP is responsible for control plane functions, mainly including radio resource control (RRC) and the corresponding packet data convergence protocol (PDCP) (PDCP-C). PDCP-C is mainly responsible for encryption / decryption, integrity protection, and data transmission of control plane data. CU-UP is responsible for user plane functions, mainly including the Service Data Adaptation Protocol (SDAP) and the corresponding Packet Data Convergence Protocol User (PDCP-U). SDAP is primarily responsible for processing core network data and mapping flows to bearers. PDCP-U is mainly responsible for data plane encryption / decryption, integrity protection, header compression, sequence number maintenance, and data transmission. CU-CP and CU-UP are connected via the E1 interface. CU-CP represents the gNB connecting to the core network via the NG interface and to the DU via the F1 interface control plane (F1-C). CU-UP connects to the DU via the F1 interface user plane (F1-U). Alternatively, PDCP-C may also be included in CU-UP.

[0136] It is understood that CU (including CU-CP or CU-UP) or DU may have different names in different systems, but those skilled in the art will understand their meaning. For example, in an open radio access network (O-RAN) system, CU can also be called an open centralized unit (O-CU), DU can also be called an open distributed unit (O-DU), CU-CP can also be called an open centralized unit-control plane (O-CU-CP), and CU-UP can also be called an open centralized unit user plane (O-CU-UP). For ease of description, this application uses CU, CU-CP, CU-UP, and DU as examples. Network devices may also include active antenna units (AAU). CU implements some of the functions of gNB, and DU implements some of the functions of gNB. For example, CU is responsible for handling non-real-time protocols and services, implementing the functions of the RRC layer. The DU (User Unit) is responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (RLC), media access control (MAC), and physical (PHY) layers. In some deployments, the CU can also be divided into a centralized unit control plane (CU-CP) node and a centralized unit user plane (CU-UP) node. The CU-CP handles control plane functions, while the CU-UP handles user plane functions.

[0137] Optionally, the base station in this application embodiment may include various forms of base stations, such as: macro base station, micro base station (also known as small station), relay station, access point, home base station, TRP, transmission point (TP), mobile switching center, etc. This application embodiment does not specifically limit these.

[0138] Optionally, the terminal device in this application embodiment can be a user-side device used to implement wireless communication functions, such as a terminal or a chip that can be used in the terminal. The terminal can be a user equipment (UE), access terminal, satellite terminal, terminal unit, terminal station, mobile station, mobile station, remote station, remote terminal, mobile device, wireless communication device, terminal agent, or terminal apparatus in a 5G network or a PLMN evolved from 5G.Terminals can be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, smartphones (such as mobile phones), personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices (such as cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed trains, etc.) or wearable devices (such as smartwatches, smart bracelets, pedometers, smart glasses, etc.), intelligent robots, robotic arms, workshop equipment, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in telemedicine or telehealth services, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes. Wireless terminals in the home (e.g., refrigerators, televisions, air conditioners, electricity meters, etc.), wireless data cards, tablet computers, laptops, handheld computers, mobile internet devices (MID), wireless modems, handsets, laptop computers, machine type communication (MTC) terminals, point of sale (POS) machines, customer-premises equipment (CPE), light user equipment (light UE), reduced capability user equipment (REDCAP UE), and flying equipment (e.g., intelligent robots, hot air balloons, drones, airplanes), etc.Alternatively, a terminal can be a communication-enabled terminal (or a device that performs terminal functions) in the Internet of Things (IoT), such as a terminal in vehicle-to-everything (V2X) systems (i.e., vehicle devices, such as vehicle units, onboard modules, onboard chips, onboard units (OBUs) or telematics boxes (T-BOXs, etc.), terminals in device-to-device (D2D) systems, or terminals in machine-to-machine (M2M) systems. Terminals can be mobile or fixed.

[0139] In some embodiments, the terminal device may also be a device or module that is connected to the communication system shown above and has corresponding communication functions. The terminal device typically includes a communication module that performs the corresponding communication functions, or a chip responsible for communication functions within the terminal device, such as a modem chip (also known as a baseband chip), or a system-on-a-chip (SoC) chip or system-in-a-package (SIP) chip containing a modem module. The terminal device also contains program instructions for performing the corresponding communication functions.

[0140] In some embodiments, the terminal device may also be a device or module that is connected to the communication system shown above and has corresponding communication functions. The terminal device typically contains a communication module, circuit, or chip that performs the corresponding communication functions, and the terminal device is also configured with program instructions for performing the corresponding communication functions.

[0141] Optionally, the roles between network devices and terminal devices can be relative, for example, Figure 5 In the context of terminal devices #9 and #10, since terminal device #10 needs to access network device #1 through terminal device #9, terminal device #9 can be configured as a network device relative to terminal device #1; while relative to network device #1, terminal device #9 is also a terminal device. That is, network device #1 and terminal device #9 communicate via a wireless air interface protocol. Optionally, network device #1 and terminal device #9 can also communicate via a network device-to-network device interface protocol. In this case, terminal device #9 also functions as a network device relative to network device #1.

[0142] Optionally, communication between network devices and terminal devices, between network devices, or between terminal devices can be conducted using licensed spectrum, unlicensed spectrum, or both. Alternatively, communication between network devices and terminal devices, between network devices, or between terminal devices can be conducted using spectrum below 6 GHz, spectrum above 6 GHz, or both. The embodiments of this application do not limit the spectrum resources used for wireless communication.

[0143] In the embodiments of this application, the functions of the network device can also be executed by modules (such as chips) within the network device, or by a control subsystem that includes network device functions. The control subsystem that includes network device functions can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal device can be executed by modules (such as chips, modems, application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or software (such as program code in memory), or by a device that includes terminal device functions; there are no limitations on this.

[0144] In practical implementation, Figure 4 As shown in the figure: Each communication device (such as the first device, the second device) can adopt Figure 6 The shown composition structure, or including Figure 6 The components shown. Figure 6 This is a schematic diagram illustrating the composition of a communication device 600 provided in an embodiment of this application. The communication device 600 can be a first device or a chip or system-on-a-chip within the first device; it can also be a second device or a chip or system-on-a-chip within the second device. For example... Figure 6 As shown, the communication device 600 includes a processor 601, a communication interface 602, and a communication line 603.

[0145] Furthermore, the communication device 600 may also include a memory 604. The processor 601, memory 604, and communication interface 602 can be connected via a communication line 603.

[0146] The processor 601 can be a central processing unit (CPU), a network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD), or any combination thereof. The processor 601 can also be other devices with processing capabilities, such as circuits, devices, or software modules, without limitation.

[0147] Communication interface 602 is used to communicate with other devices or other communication networks. These other communication networks can be Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. Communication interface 602 can be a module, circuit, transceiver, or any device capable of enabling communication.

[0148] Communication line 603 is used to connect different components in communication device 600, enabling communication between them. Communication line 603 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. This bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 6 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0149] The memory 604 may be a device with storage function for storing instructions and / or data. The instructions may be computer programs.

[0150] For example, memory 604 may be read-only memory (ROM) or other types of static storage devices that can store static information and / or instructions; it may also be random access memory (RAM) or other types of dynamic storage devices that can store information and / or instructions; it may also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, etc., without limitation.

[0151] It should be noted that the memory 604 can exist independently of the processor 601 or can be integrated with the processor 601. The memory 604 can be used to store instructions, program code, or some data, etc. The memory 604 can be located inside or outside the communication device 600, without limitation. The processor 601 is used to execute the instructions stored in the memory 604 to implement the signal transmission method provided in the following embodiments of this application.

[0152] In one example, processor 601 may include one or more CPUs, for example Figure 6 CPU0 and CPU1 in the CPU.

[0153] As an optional implementation, the communication device 600 includes multiple processors, for example, besides Figure 6 In addition to processor 601, it may also include processor 607.

[0154] As an optional implementation, the communication device 600 also includes an output device 605 and an input device 606. Exemplarily, the input device 606 is a liquid crystal display (LCD), a light-emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc. For example, the input device 606 can be a keyboard, mouse, microphone, joystick, touchscreen device, or sensing device, etc. The output device 605 is a display screen, speaker, etc.

[0155] It should be noted that the communication device 600 can be a desktop computer, laptop computer, network server, mobile phone, tablet computer, wireless terminal, embedded device, chip system, or other device. Figure 6 Equipment with a similar structure. Furthermore... Figure 6 The structural composition shown does not constitute a limitation on the communication device, except... Figure 6 In addition to the components shown, the communication device may include more or fewer components than illustrated, or combine certain components, or have different component arrangements.

[0156] In this embodiment of the application, the chip system may be composed of chips or may include chips and other discrete devices.

[0157] Furthermore, the actions, terms, etc., involved in the various embodiments of this application can be referenced interchangeably without limitation. The message names or parameter names in the messages used for interaction between devices in the embodiments of this application are merely examples, and other names may be used in specific implementations without limitation.

[0158] The signal transmission method provided in the embodiments of this application will be described below with reference to the accompanying drawings. It should be understood that in the embodiments of this application, the first device or the second device may perform some or all of the steps in the embodiments of this application. These steps or operations are merely examples, and the embodiments of this application may also perform other operations or variations thereof. Furthermore, the steps may be performed in different orders as presented in the embodiments of this application, and it is not necessary to perform all the operations in the embodiments of this application.

[0159] See Figure 7 This is a flowchart illustrating a signal transmission method provided in this application. The signal transmission method includes the following steps S701 to S702:

[0160] S701, the second device sends instruction information to the first device; correspondingly, the first device receives instruction information from the second device.

[0161] The indication information indicates the frequency domain resources of the WUS, and some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, wherein the at least one guard bandwidth is the guard bandwidth in at least one carrier bandwidth of the channel.

[0162] For example, the fact that some or all of the frequency domain resources of WUS are located within at least one guard bandwidth can be understood as: some of the frequency domain resources of WUS are located within one guard bandwidth, or all of the frequency domain resources of WUS are located within one guard bandwidth, or some of the frequency domain resources of WUS are located within multiple guard bandwidths, or all of the frequency domain resources of WUS are located within multiple guard bandwidths.

[0163] For example, based on the aforementioned related technologies, it is known that the carrier bandwidth consists of the transmission bandwidth configuration and the protection bandwidth; therefore, at least one protection bandwidth is the protection bandwidth in at least one carrier bandwidth of the channel, which can be understood as: at least one protection bandwidth used to carry the frequency domain resources of WUS refers to the protection bandwidth used to constitute the carrier bandwidth; that is, the frequency domain resources used to carry WUS are located within at least one carrier bandwidth.

[0164] Specifically, the implementation of protection bandwidth, transmission bandwidth configuration, and carrier bandwidth can be found above. Figure 1 (Right now Figure 1 (a) and / or Figure 1 The relevant description of (b) in the text will not be repeated here.

[0165] For example, when the first device is a terminal device and the second device is a network device, the frequency domain resources of WUS are downlink resources; when the first device is a network device and the second device is a terminal device, the frequency domain resources of WUS are uplink resources.

[0166] Specifically, when the frequency domain resources of WUS are downlink resources, the indication information can be carried in any of the following: downlink control information (DCI), RRC signaling, or medium access control-control element (MAC-CE) signaling.

[0167] When the frequency domain resources of WUS are uplink resources, the indication information can be carried in any of the following: uplink control information (UCI), RRC signaling, or MAC-CE signaling.

[0168] S702, the second device sends WUS to the first device; correspondingly, the first device receives WUS on the frequency domain resources of WUS.

[0169] For example, after the second device indicates the frequency domain resources of WUS to the first device (that is, the second device indicates the frequency domain resources of WUS to the first device through indication information), it can send WUS to the first device on the frequency domain resources of WUS, so that the first device can receive WUS on the frequency domain resources of WUS.

[0170] For example, the first device can receive the WUS through its receiver. Specifically, the receiver can be a low-power receiver (LPR); or, the receiver can be a wake-up receiver (WUR); or, the receiver can be an LP-WUR; or, the receiver can be any receiver capable of receiving WUS, which is not limited in this application.

[0171] Optionally, after step S702, as follows: Figure 8 As shown, the signal indication method may further include the following step S703:

[0172] S703, the first device wakes up the main transceiver of the first device based on WUS.

[0173] For example, the first device may include a receiver (such as an LP-WUR) for receiving WUS and a master transceiver; wherein the master transceiver is used to receive signals other than WUS. Further, before the first device receives WUS, the master transceiver is in a sleep state; after the first device receives WUS, the first device may wake up the master transceiver based on WUS, enabling the master transceiver to transmit and receive signals.

[0174] Optionally, the frequency of the carrier bandwidth in which the signals transmitted and received by the master transceiver are located is higher than the frequency of the carrier bandwidth in which the WUS is located.

[0175] For example, the receiving performance of LP-WUR is much lower than that of the main transceiver (such as its anti-interference capability). Therefore, when the signal transmitted and received by the main transceiver and the WUS signal are in the same carrier bandwidth (i.e., the signal transmitted and received by the main transceiver and the WUS signal use the same carrier), the coverage of WUS is lower than that of the signal transmitted and received by the main transceiver. This leads to the phenomenon that the main transceiver can work normally in some scenarios, but LP-WUR cannot work, thus making it impossible to wake up the main transceiver using WUS.

[0176] Therefore, in this application, the main transceiver operates on a high-frequency carrier and the LP-WUR operates on a low-frequency carrier (i.e., the frequency of the carrier bandwidth where the signal transmitted and received by the main transceiver is located is higher than the frequency of the carrier bandwidth where the WUS is located). Generally, the lower the frequency, the smaller the path loss. This reduces the path loss of the WUS, increases the coverage of the WUS, and makes the coverage of the WUS as consistent as possible with the coverage of the signal transmitted and received by the main transceiver, so that the first device can use the WUS to wake up the main transceiver.

[0177] The signal transmission method provided in this application embodiment allows a first device to receive a WUS based on the frequency domain resources of the WUS configured by a second device for the WUS (i.e., receiving the WUS on the frequency domain resources of the WUS). Specifically, some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth within at least one carrier bandwidth (i.e., at least one guard bandwidth is the guard bandwidth within at least one carrier bandwidth of the channel). In other words, when configuring frequency domain resources for the WUS, the second device can consider allocating the guard bandwidth on the carrier bandwidth to the WUS, enabling the WUS to be transmitted on the guard bandwidth. Compared to a scheme that only transmits the WUS on the transmission bandwidth within the carrier bandwidth, this improves the spectral utilization of the carrier bandwidth.

[0178] The above is a general description of the signal transmission method provided by this solution. The following section provides a detailed introduction to the "frequency domain resources of WUS" involved in the above embodiments. For example, based on different implementations of at least one guard bandwidth, the frequency domain resources of WUS can be implemented in the following two ways:

[0179] Case 1: At least one protection bandwidth includes one protection bandwidth.

[0180] For ease of description, the protection bandwidth will be referred to as the first protection bandwidth below. That is to say, at least one protection bandwidth includes the first protection bandwidth; this will be used consistently here and will not be repeated.

[0181] At this time, some or all of the frequency domain resources of WUS are located within the first protection bandwidth; that is, some or all of the frequency domain resources of WUS are located within at least one protection bandwidth, including: some or all of the frequency domain resources of WUS are located within the first protection bandwidth.

[0182] As an example, a portion of the frequency domain resources of WUS are located within the first protection bandwidth, and the remaining frequency domain resources of WUS, excluding this portion, are located within the first transmission bandwidth configuration; wherein, the first transmission bandwidth configuration and the first protection bandwidth are located within the same carrier bandwidth.

[0183] For example, based on the aforementioned related technologies, a carrier bandwidth is configured with two guard bandwidths and one transmission bandwidth, and the two guard bandwidths are located at the left and right ends of the transmission bandwidth configuration, respectively. Taking guard bandwidth #1 and guard bandwidth #2 as examples, if the first guard bandwidth is guard bandwidth #1, then the position of the frequency domain resources of WUS in the carrier bandwidth can be as follows: Figure 9 As shown in (a), some of the frequency domain resources of WUS are located in the protection bandwidth #1, and the remaining frequency domain resources of WUS other than this part are located in the transmission bandwidth configuration.

[0184] If the first protection bandwidth is protection bandwidth #2, then the position of the frequency domain resources of WUS in the carrier bandwidth can be as follows: Figure 9 As shown in (b), some of the frequency domain resources of WUS are located in the protection bandwidth #2, while the remaining frequency domain resources of WUS, excluding this portion, are located in the transmission bandwidth configuration.

[0185] Optionally, in this example, since a portion of the frequency domain resources of WUS (i.e., the remaining resources mentioned above) are located within the first transmission bandwidth configuration, meaning that WUS needs to be transmitted within the first transmission bandwidth configuration, the second device needs to consider the carrier frequency (or frequency band) applicable to the first device when configuring the frequency domain resources of WUS. Therefore, it selects a carrier frequency from the carrier frequencies applicable to the first device and configures the frequency domain resources of WUS for WUS within the carrier bandwidth corresponding to that carrier frequency. In this case, the carrier bandwidth corresponding to that carrier frequency includes the first guard bandwidth and the first transmission bandwidth configuration. Here, the carrier frequency refers to the frequency of the carrier bandwidth, or in other words, the carrier frequency refers to the frequency of the transmission bandwidth configuration within the carrier bandwidth. That is, the frequency of the carrier bandwidth is the same as the frequency of the transmission bandwidth configuration within that carrier bandwidth.

[0186] Optionally, in this example, some or all of the frequency domain resources other than the remaining resources of WUS within the first transmission bandwidth configuration can be configured for signals other than WUS.

[0187] For example, when a portion of the frequency domain resources other than the remaining resources of WUS within the first transmission bandwidth configuration are allocated to signals other than WUS, the interval between the portion of the frequency domain resources other than the remaining resources of WUS within the first transmission bandwidth configuration and the remaining resources of WUS is greater than or equal to the signal interval.

[0188] For example, the implementation of signal spacing can be found in the aforementioned related technologies, and will not be repeated here.

[0189] Optionally, the frequency domain resources of WUS can be configured autonomously by the second device based on the carrier frequency applicable to the first device; or, the second device can determine them based on the capabilities of the first device.

[0190] For example, when the frequency domain resources of WUS are determined by the second device based on the capabilities of the first device, the capabilities of the first device can be indicated by first capability information. That is, the first device can report the first capability information to the second device, so that the second device can determine the frequency domain resources of WUS based on the first capability information.

[0191] Specifically, before step S701, such as Figure 10 As shown, the signal transmission method may further include step S700A:

[0192] S700A, the first device sends first capability information to the second device, and correspondingly, the second device receives the first capability information from the first device. The first capability information indicates that the first device supports the ability to simultaneously receive signals in both a protection bandwidth and a transmission bandwidth configuration, wherein the transmission bandwidth and the transmission bandwidth configuration are located within the same carrier bandwidth.

[0193] For example, the first capability information indicating the first device's ability to simultaneously receive signals in both the protection bandwidth and transmission bandwidth configurations can be understood as: the first capability information indicating the first device's ability to receive signals in both the protection bandwidth and transmission bandwidth configurations within the same carrier bandwidth.

[0194] In one possible implementation, the first capability information indicates whether the first device supports receiving signals simultaneously in both the protection bandwidth and transmission bandwidth configurations.

[0195] In other words, the first capability information indicates that the first device supports the ability to receive signals simultaneously in both the protection bandwidth and transmission bandwidth configurations, including: the first capability information indicates whether the first device supports receiving signals simultaneously in both the protection bandwidth and transmission bandwidth configurations.

[0196] For example, the first capability information indicating whether to receive signals simultaneously on the protection bandwidth and transmission bandwidth configuration can also be understood as: the first capability information indicating whether the first device supports receiving signals simultaneously on the protection bandwidth and transmission bandwidth configuration within the same carrier bandwidth.

[0197] Specifically, the first capability information can be represented by 1 bit. When this 1 bit is 1, it indicates that the first capability information indicates that the first device supports receiving signals simultaneously on both the guard bandwidth and transmission bandwidth configurations, or in other words, the first capability information indicates that the first device supports receiving signals simultaneously on both the guard bandwidth and transmission bandwidth configurations within the same carrier bandwidth. When this 1 bit is 0, it indicates that the first capability information indicates that the first device does not support receiving signals simultaneously on both the guard bandwidth and transmission bandwidth configurations, or in other words, the first capability information indicates that the first device does not support receiving signals simultaneously on both the guard bandwidth and transmission bandwidth configurations within the same carrier bandwidth.

[0198] Alternatively, when this 1-bit is 0, it indicates that the first capability information indicates that the first device supports simultaneous signal reception on both the guard bandwidth and transmission bandwidth configurations, or in other words, the first capability information indicates that the first device supports simultaneous signal reception on both the guard bandwidth and transmission bandwidth configurations within the same carrier bandwidth. When this 1-bit is 1, it indicates that the first capability information indicates that the first device does not support simultaneous signal reception on both the guard bandwidth and transmission bandwidth configurations, or in other words, the first capability information indicates that the first device does not support simultaneous signal reception on both the guard bandwidth and transmission bandwidth configurations within the same carrier bandwidth.

[0199] In another possible implementation, the first capability information indicates the size of the protection bandwidth and the size of the transmission bandwidth configuration supported by the first device. The protection bandwidth and transmission bandwidth configuration are used for the first device to simultaneously receive signals.

[0200] In other words, the first capability information indicates the size of the protection bandwidth and the size of the transmission bandwidth configuration supported by the first device, including: the size of the protection bandwidth and the size of the transmission bandwidth configuration when the first device supports receiving signals simultaneously on both the protection bandwidth and the transmission bandwidth configuration within the same carrier bandwidth. Alternatively, the first capability information indicates the size of the protection bandwidth and the size of the transmission bandwidth configuration on which the first device supports receiving signals simultaneously.

[0201] For example, the size of the protection bandwidth can be N subcarriers. Specifically, the value of N can be any value greater than or equal to 0. For example, the value of N can be any one of 0, 1, 2, 3, 4, 6, 7, 8, or 9.

[0202] Similarly, the transmission bandwidth configuration can be M subcarriers. Specifically, the value of M can be any value greater than or equal to 0. For example, the value of M can be any one of 0, 1, 2, 3, 4, 6, 7, 8, and 9. Exemplarily, the value of M and the value of N can be the same or different, and this application does not impose any restrictions.

[0203] Specifically, when N is 0 and / or M is 0, it means that the first device does not support receiving signals simultaneously on the protection bandwidth and transmission bandwidth configuration within the same carrier bandwidth.

[0204] Understandably, since one subcarrier is 1 kHz, the guard bandwidth can be N subcarriers, or N kHz. Similarly, the transmission bandwidth can be configured with M subcarriers, or M kHz.

[0205] For example, based on the above implementation of the size of the protection bandwidth and the size of the transmission bandwidth configuration, it can be seen that the first capability information indicating the size of the protection bandwidth and the size of the transmission bandwidth configuration supported by the first device can be replaced by: the first indication information indicating the value of N and the value of M.

[0206] Specifically, the first indication information may include specific values ​​of N and M to directly indicate the values ​​of N and M. Alternatively, the first indication information may indicate a parameter that corresponds to the values ​​of N and M, thereby implicitly indicating the values ​​of N and M corresponding to that parameter. Alternatively, the first indication information may also indicate the values ​​of N and M in any other possible way, which is not limited in the embodiments of this application.

[0207] For example, the parameters that correspond to the values ​​of N and M can include the following two implementation methods:

[0208] Implementation Method 1: The parameter that corresponds to the values ​​of N and M can be the first index. Here, N is the size of the protection bandwidth corresponding to the first index in the first correspondence, and M is the size of the protection bandwidth configuration corresponding to the first index in the first correspondence. The first correspondence is the relationship between the index, the size of the protection bandwidth, and the size of the protection bandwidth configuration.

[0209] For example, the first correspondence can be represented in a table, which may include the contents shown in Table 3 below:

[0210] Table 3

[0211] index Protection bandwidth size The size of the transmission bandwidth configuration 0 0 0 1 1 1 2 2 1 3 3 1 4 4 2 5 5 2 … … …

[0212] As shown in Table 3, when the first index is 0, the corresponding value of N is 0 and the value of M is 0; when the first index is 1, the corresponding value of N is 1 and the value of M is 1; and so on, when the first index is 5, the corresponding value of N is 5 and the value of M is 2.

[0213] Alternatively, the first correspondence can be represented by a set. In this case, the first correspondence can include {0; 0; 0}, {1; 1; 1}, {2; 2; 1}, {3; 3; 1}, {4; 4; 2}, {5; 5; 2}, ... The first column of the set represents the index, the second column represents the size of the protection bandwidth, and the third column represents the size of the transmission bandwidth configuration. That is, when the first index is 0, the corresponding N value is 0 and the M value is 0; when the first index is 1, the corresponding N value is 1 and the M value is 1; and so on, when the first index is 5, the corresponding N value is 5 and the M value is 2.

[0214] It should be understood that the above examples only illustrate possible implementations of the first correspondence relationship and do not represent that the first correspondence relationship only includes the implementations in the above examples; in fact, the first correspondence relationship may also include other implementations besides those mentioned above, such as the first correspondence relationship being implemented by grouping, and / or the values ​​of the parameters in the first correspondence relationship may include other values ​​besides those mentioned above, which is not limited in this application.

[0215] Implementation Method Two: The parameter corresponding to the values ​​of N and M can be the first ratio. Here, the first ratio is the ratio between the size of the protection bandwidth and the size of the configured transmission bandwidth.

[0216] For example, the first ratio can be N / M; or, the first ratio can be M / N. For instance, if N is 5 and M is 2, the first ratio can be 2 / 5, or the first ratio can be 5 / 2.

[0217] It should be understood that the above two implementation methods (i.e., implementation method one and implementation method two) only exemplarily introduce partial implementations of parameters that correspond to the values ​​of N and M, and do not mean that the parameters that correspond to the values ​​of N and M only include the implementations in the above examples; the parameters that correspond to the values ​​of N and M in the implementation can also include other forms besides the above examples, and this application does not limit them.

[0218] Based on this example, some of the frequency domain resources of WUS can be located within the guard bandwidth. Furthermore, another part of the frequency domain resources of WUS can be located in the transmission bandwidth configuration within the same carrier bandwidth as the guard bandwidth, so that WUS can be transmitted within both the transmission bandwidth configuration and the guard bandwidth. Compared with the scheme of transmitting WUS only in the transmission bandwidth configuration within the carrier bandwidth, the spectrum utilization of the carrier bandwidth can be improved.

[0219] As another example, all resources in the frequency domain of WUS are located within the first protection bandwidth.

[0220] For example, based on the aforementioned related technologies, a carrier bandwidth is configured with two guard bandwidths and one transmission bandwidth, and the two guard bandwidths are located at the left and right ends of the transmission bandwidth configuration, respectively. Taking guard bandwidth #1 and guard bandwidth #2 as examples, if the first guard bandwidth is guard bandwidth #1, then the position of the frequency domain resources of WUS in the carrier bandwidth can be as follows: Figure 11 As shown in (a), all frequency domain resources of WUS are located within guard bandwidth #1. If the first guard bandwidth is guard bandwidth #2, then the position of WUS's frequency domain resources within the carrier bandwidth can be as follows: Figure 11 As shown in (b), all resources in the frequency domain of WUS are located in the guard bandwidth #2.

[0221] Optionally, in this example, since all resources in the frequency domain of WUS are located within the first guard bandwidth, WUS does not need to be transmitted within the transmission bandwidth configuration. It is understood that in current WUS transmission, signals are transmitted within the transmission bandwidth configuration, and the transmission bandwidth configuration within a carrier bandwidth needs to be configured for devices that support the frequency of that carrier bandwidth. However, since signals are not transmitted within the guard bandwidth, there are currently no restrictions on the applicable devices for the guard bandwidth; therefore, the guard bandwidth can be shared with any device. That is, even if the first device is not applicable to the carrier frequency of the first transmission bandwidth configuration (or, in other words, the frequency of the carrier bandwidth in which the first transmission bandwidth configuration is located), the first device can still receive signals within the first guard bandwidth, meaning that the frequency domain resources of WUS can be located within the first guard bandwidth.

[0222] Optionally, in this example, some or all of the resources in the first transmission bandwidth configuration can be allocated to signals other than WUS.

[0223] For example, when a portion of the resources in the first transmission bandwidth configuration is allocated to signals other than WUS, the interval between the portion of the resources in the first transmission bandwidth configuration and the remaining resources of WUS is greater than or equal to the signal interval.

[0224] For example, the implementation of signal spacing can be found in the aforementioned related technologies, and will not be repeated here.

[0225] Optionally, the first protection bandwidth may be located within the uplink carrier bandwidth; that is, the carrier bandwidth in which the first protection bandwidth is located is the uplink carrier bandwidth. Alternatively, the first protection bandwidth may be located within the downlink carrier bandwidth; that is, the carrier bandwidth in which the first protection bandwidth is located is the downlink carrier bandwidth.

[0226] For example, when the first device is a terminal device and the second device is a network device, the frequency domain resources of WUS are downlink resources. Typically, the frequency domain resources of WUS are located within the downlink carrier bandwidth. Furthermore, if the first and second devices support full-duplex communication mode (i.e., the first device supports simultaneous transmission and reception of signals), similarly, the second device also supports simultaneous transmission and reception of signals. In other words, the frequency domain resources of WUS can also be located within the uplink carrier bandwidth, allowing the second device to transmit WUS within that uplink carrier bandwidth while receiving uplink signals (i.e., transmitting WUS on the frequency domain resources of WUS).

[0227] When the first device is a network device and the second device is a terminal device, the frequency domain resources of WUS are uplink resources. Normally, the frequency domain resources of WUS are located within the uplink carrier bandwidth. Furthermore, if the first and second devices support full-duplex communication mode (i.e., the first device supports simultaneous transmission and reception of signals), similarly, the second device also supports simultaneous transmission and reception of signals. In other words, the frequency domain resources of WUS can also be located within the downlink carrier bandwidth, allowing the second device to transmit WUS within that downlink carrier bandwidth while receiving downlink signals (i.e., transmitting WUS on the frequency domain resources of WUS).

[0228] Optionally, the frequency domain resources of WUS can be configured autonomously by the second device based on the carrier frequency applicable to the first device; or, the second device can determine them based on the capabilities of the first device.

[0229] For example, when the frequency domain resources of WUS are determined by the second device based on the capabilities of the first device, the capabilities of the first device can be indicated by second capability information. That is, the first device can report the second capability information to the second device, so that the second device can determine the frequency domain resources of WUS based on the second capability information.

[0230] Specifically, before step S701, such as Figure 12 As shown, the signal transmission method may further include step S700B:

[0231] S700B: The first device sends second capability information to the second device, and correspondingly, the second device receives the second capability information from the first device. The second capability information indicates that the first device supports the ability to receive signals over the protection bandwidth.

[0232] In one possible implementation, the second capability information indicates whether the first device supports receiving signals over the guard bandwidth. That is, the second capability information indicating the first device's ability to receive signals over the guard bandwidth includes: the second capability information indicating whether the first device supports receiving signals over the guard bandwidth.

[0233] Specifically, the second capability information can be represented by 1 bit. When this 1 bit is 1, it indicates that the first capability information indicates that the first device supports receiving signals on the protection bandwidth; when this 1 bit is 0, it indicates that the second capability information indicates that the first device does not support receiving signals on the protection bandwidth. Alternatively, when this 1 bit is 0, it indicates that the first capability information indicates that the first device supports receiving signals on the protection bandwidth; when this 1 bit is 1, it indicates that the first capability information indicates that the first device does not support receiving signals on the protection bandwidth.

[0234] For example, when the first capability information indicates that the first device supports receiving signals simultaneously on both the protection bandwidth and the transmission bandwidth configuration, some of the frequency domain resources of the WUS configured by the second device can be located within the first protection bandwidth, and another part of the resources can be located within the first transmission bandwidth configuration; when the first capability information indicates that the first device does not support receiving signals simultaneously on both the protection bandwidth and the transmission bandwidth configuration, all the frequency domain resources of the WUS configured by the second device can be located within the first protection bandwidth.

[0235] Optionally, in this possible implementation, the protection bandwidth indicated in the second capability information can be the protection bandwidth in the uplink carrier bandwidth, or it can be the protection bandwidth in the downlink carrier bandwidth.

[0236] For example, when the protection bandwidth indicated in the second capability information is the protection bandwidth within the uplink carrier bandwidth, the second capability information indicates whether the first device supports receiving signals on the protection bandwidth. This can be understood as: the second capability information indicates whether the first device supports receiving signals on the protection bandwidth within the uplink carrier bandwidth. Similarly, when the protection bandwidth indicated in the second capability information is the protection bandwidth within the downlink carrier bandwidth, the second capability information indicates whether the first device supports receiving signals on the protection bandwidth. This can be understood as: the second capability information indicates whether the first device supports receiving signals on the protection bandwidth within the downlink carrier bandwidth.

[0237] Alternatively, the second capability information indicating whether the first device supports receiving signals on the guard bandwidth can also be understood as: the second capability information indicating whether the first device supports receiving signals on the guard bandwidth in the uplink carrier bandwidth, and the second capability information also indicating whether the first device supports receiving signals on the guard bandwidth in the downlink carrier bandwidth.

[0238] In another possible implementation, the second capability information indicates the size of the protection bandwidth supported by the first device. This protection bandwidth is used by the first device to receive signals.

[0239] In other words, the second capability information indicates the size of the protection bandwidth supported by the first device, which can be understood as: the second capability information indicates the size of the protection bandwidth that the first device supports when receiving signals on the protection bandwidth; or, in other words, the first device supports receiving signals on a certain protection bandwidth.

[0240] For example, the size of the guard bandwidth can be N subcarriers. Specifically, the value of N can be any value greater than or equal to 0. For example, the value of N can be any one of 0, 1, 2, 3, 4, 6, 7, 8, and 9. When N is 0, it indicates that the first device does not support receiving signals on the guard bandwidth.

[0241] As is understandable, since a subcarrier is 1 kHz, the guard bandwidth can be N subcarriers, or it can be replaced with: the guard bandwidth can be N kHz.

[0242] For example, based on the above implementation of the protection bandwidth size, it can be seen that the first capability information indicating the size of the protection bandwidth supported by the first device can be replaced by: the first indication information indicating the value of N. Specifically, the first indication information can include the specific value of N to directly indicate the value of N. Alternatively, the first indication information can indicate a parameter that corresponds to the value of N, thereby implicitly indicating the value of N corresponding to that parameter. Alternatively, the first indication information can also indicate the value of N in any other possible way, which is not limited in the embodiments of this application.

[0243] For example, the parameter corresponding to the value of N can be the second index. Here, the value of N is the size of the protection bandwidth corresponding to the second index in the second correspondence, and the second correspondence is the relationship between the index and the size of the protection bandwidth. Specifically, the second correspondence can be represented in a table, which can include the content shown in Table 4 below:

[0244] Table 4

[0245]

[0246]

[0247] As shown in Table 4, when the second index is 0, the corresponding value of N is 0; when the second index is 1, the corresponding value of N is 1; and so on, until the second index is 5, when the corresponding value of N is 5. Alternatively, the second correspondence can be represented by a set, in which case the second correspondence can include {0; 0}, {1; 1}, {2; 2}, {3; 3}, {4; 4}, {5; 5}, ... The first column of the set represents the index, and the second column represents the size of the protection bandwidth. That is, when the second index is 0, the corresponding value of N is 0; when the second index is 1, the corresponding value of N is 1; and so on, until the second index is 5, when the corresponding value of N is 5.

[0248] It should be understood that the above examples only illustrate possible implementations of the second correspondence and do not represent that the second correspondence only includes the implementations in the above examples; in fact, the second correspondence may also include other implementations besides those mentioned above, such as the second correspondence being implemented by grouping, and / or the values ​​of the parameters in the second correspondence may include other values ​​besides those mentioned above, which is not limited in this application.

[0249] Optionally, in this possible implementation, the protection bandwidth indicated in the second capability information can be the protection bandwidth in the uplink carrier bandwidth, or it can be the protection bandwidth in the downlink carrier bandwidth.

[0250] For example, when the protection bandwidth indicated in the second capability information is the protection bandwidth within the uplink carrier bandwidth, the second capability information indicates the size of the protection bandwidth supported by the first device. This can be understood as: the second capability information indicates the size of the protection bandwidth when the first device receives a signal on the protection bandwidth within the uplink carrier bandwidth. Similarly, when the protection bandwidth indicated in the second capability information is the protection bandwidth within the downlink carrier bandwidth, the second capability information indicates the size of the protection bandwidth supported by the first device. This can be understood as: the second capability information indicates the size of the protection bandwidth when the first device receives a signal on the protection bandwidth within the downlink carrier bandwidth.

[0251] Alternatively, the second capability information indicating the size of the protection bandwidth supported by the first device can be understood as follows: the second capability information indicates the size of the protection bandwidth when the first device receives a signal on the protection bandwidth in the uplink carrier bandwidth, and the second capability information also indicates the size of the protection bandwidth when the first device receives a signal on the protection bandwidth in the downlink carrier bandwidth.

[0252] Therefore, combining the two possible implementations mentioned above, it can be seen that the second capability information indicating the first device's ability to receive signals on the guard bandwidth can include: the second capability information indicating the first device's ability to receive signals on the guard bandwidth in the uplink carrier bandwidth; and / or, the second capability information indicating the first device's ability to receive signals on the guard bandwidth in the downlink carrier bandwidth.

[0253] For example, the second capability information indicates the first device's ability to receive signals on the guard bandwidth of the uplink carrier bandwidth, which can also be understood as: the second capability information indicates whether the first device supports receiving signals on the guard bandwidth of the uplink carrier bandwidth; or, it can also be understood as: the second capability information indicates the size of the guard bandwidth when the first device supports receiving signals on the guard bandwidth of the uplink carrier bandwidth.

[0254] Similarly, the second capability information indicating the first device's ability to receive signals on the guard bandwidth of the downlink carrier bandwidth can also be understood as: the second capability information indicating whether the first device supports receiving signals on the guard bandwidth of the downlink carrier bandwidth; or, it can also be understood as: the second capability information indicating the size of the guard bandwidth when the first device supports receiving signals on the guard bandwidth of the downlink carrier bandwidth.

[0255] Specifically, the implementation of the second capability information is similar to that in the two possible implementation methods mentioned above. For details, please refer to the relevant description of the second capability information above, which will not be repeated here.

[0256] Based on this example, all resources in the frequency domain of WUS can be located within the guard bandwidth, allowing WUS to be transmitted within the guard bandwidth. This improves the spectral efficiency of the carrier bandwidth compared to a scheme that transmits WUS only within the transmission bandwidth configuration of the carrier bandwidth.

[0257] It is understood that in the above scenario one, the frequency domain resources of WUS are located within the first protection bandwidth, or the frequency domain resources of WUS are located within the configuration of the first protection bandwidth and the first transmission bandwidth; and the configuration of the first protection bandwidth and the first transmission bandwidth are located within the same carrier bandwidth; therefore, it can be considered that in scenario one, the frequency domain resources of WUS are located within a single carrier bandwidth.

[0258] Case 2: At least one protection bandwidth includes multiple protection bandwidths.

[0259] Optionally, multiple protection bandwidths can be two protection bandwidths. For ease of description, these two protection bandwidths will be referred to as the first protection bandwidth and the second protection bandwidth, respectively. That is to say, multiple protection bandwidths include the first protection bandwidth and the second protection bandwidth; this will be used consistently here and will not be elaborated further.

[0260] Optionally, the first protection bandwidth and the second protection bandwidth can be located within adjacent carrier bandwidths. Furthermore, to ensure the continuity of WUS frequency domain resources, or in other words, to ensure that the first device can receive WUS on a continuous segment of frequency domain resources, the first protection bandwidth and the second protection bandwidth can be made continuous.

[0261] Specifically, the first protection bandwidth and the second protection bandwidth are continuous, which can be understood as: the frequency domain resources of the first protection bandwidth and the frequency domain resources of the second protection bandwidth are continuous. For example... Figure 13 As shown, carrier bandwidth #1 consists of guard bandwidth #1, guard bandwidth #2, and transmission bandwidth configuration #1; carrier bandwidth #2 consists of guard bandwidth #3, guard bandwidth #4, and transmission bandwidth configuration #2. The frequency domain resources of guard bandwidth #2 can be subcarriers #20 to #25, and the frequency domain resources of guard bandwidth #3 can be subcarriers #26 to #30. In this case, the frequency domain resources of guard bandwidth #2 and guard bandwidth #3 can be considered continuous.

[0262] Optionally, in this second case, some or all of the frequency domain resources of WUS are located within the first protection bandwidth and the second protection bandwidth; that is, some or all of the frequency domain resources of WUS are located within at least one protection bandwidth, including: some or all of the frequency domain resources of WUS are located within the first protection bandwidth and the second protection bandwidth.

[0263] As an example, a portion of the frequency domain resources of WUS are located within the first and second protection bandwidths, while the remaining frequency domain resources of WUS, excluding this portion, are located within the first transmission bandwidth configuration. The first transmission bandwidth configuration and the first protection bandwidth are located within the same carrier bandwidth.

[0264] For example, based on the aforementioned related technologies, a carrier bandwidth is configured with two guard bandwidths and one transmission bandwidth, and the two guard bandwidths are located at the left and right ends of the transmission bandwidth configuration, respectively. Figure 14 As shown in (a) and / or (b), carrier bandwidth #1 consists of guard bandwidth #1, guard bandwidth #2, and transmission bandwidth configuration #1; carrier bandwidth #2 consists of guard bandwidth #3, guard bandwidth #4, and transmission bandwidth configuration #2. Taking the continuous first and second guard bandwidths as an example, as follows... Figure 14 As shown in (a), the first protection bandwidth can be protection bandwidth #2, and correspondingly, the second protection bandwidth is protection bandwidth #3; in this case, the first transmission bandwidth is configured as transmission bandwidth configuration #1. Or, as... Figure 14 As shown in (b), the first protection bandwidth can be protection bandwidth #3, and correspondingly, the second protection bandwidth is protection bandwidth #2; at this time, the first transmission bandwidth is configured as transmission bandwidth configuration #2.

[0265] Optionally, in this example, since a portion of the frequency domain resources of WUS (i.e., the remaining resources mentioned above) are located within the first transmission bandwidth configuration, meaning that WUS needs to be transmitted within the first transmission bandwidth configuration, the second device needs to consider the carrier frequency (or frequency band) applicable to the first device when configuring the frequency domain resources of WUS. Therefore, it selects a carrier frequency from the carrier frequencies applicable to the first device and configures the frequency domain resources of WUS for WUS within the carrier bandwidth corresponding to that carrier frequency and its adjacent carrier bandwidths. In this case, the carrier bandwidth corresponding to that carrier frequency includes the first guard bandwidth and the first transmission bandwidth configuration.

[0266] For example, such as Figure 14 As shown in (a), when the first protection bandwidth is protection bandwidth #2 and the second protection bandwidth is protection bandwidth #3, the first transmission bandwidth is configured as transmission bandwidth configuration #1. In this case, the carrier bandwidth corresponding to the carrier frequency band applicable to the first device is carrier bandwidth #1, and correspondingly, the carrier bandwidth adjacent to carrier bandwidth #1 is carrier bandwidth #2. Similarly, as... Figure 14 As shown in (b), when the first protection bandwidth is protection bandwidth #3 and the second protection bandwidth is protection bandwidth #2, the first transmission bandwidth is configured as transmission bandwidth configuration #2. At this time, the carrier bandwidth corresponding to the carrier frequency band applicable to the first device is carrier bandwidth #2, and correspondingly, the carrier bandwidth adjacent to carrier bandwidth #1 is carrier bandwidth #1.

[0267] Optionally, some or all of the remaining resources in the frequency domain outside of WUS within the first transmission bandwidth configuration can be allocated to signals other than WUS.

[0268] For example, when a portion of the frequency domain resources other than the remaining resources of WUS within the first transmission bandwidth configuration are allocated to signals other than WUS, the interval between the portion of the frequency domain resources other than the remaining resources of WUS within the first transmission bandwidth configuration and the remaining resources of WUS is greater than or equal to the signal interval.

[0269] For example, the implementation of signal spacing can be found in the aforementioned related technologies, and will not be repeated here.

[0270] Optionally, the frequency domain resources of WUS can be configured autonomously by the second device based on the carrier frequency applicable to the first device; or, the second device can determine them based on the capabilities of the first device.

[0271] For example, when the frequency domain resources of WUS are determined by the capabilities of the second device, before step S701, the first device may send first capability information to the second device, so that the second device can determine the frequency domain resources of WUS based on the first capability information.

[0272] Specifically, the implementation of the first capability information can be found in the relevant description of the above embodiments, and will not be repeated here.

[0273] Based on this example, some of the frequency domain resources of WUS can be located within multiple guard bandwidths. Furthermore, another portion of the frequency domain resources of WUS can be located within a transmission bandwidth configuration that is within the same carrier bandwidth as one of the multiple guard bandwidths. This allows WUS to be transmitted within both the transmission bandwidth configuration and the guard bandwidth. Compared to a scheme that transmits WUS only within the transmission bandwidth configuration of the carrier bandwidth, this improves the spectral utilization of the carrier bandwidth.

[0274] As another example, all resources in the frequency domain of WUS are located within the first and second guard bands.

[0275] For example, based on the aforementioned related technologies, a carrier bandwidth is configured with two guard bandwidths and one transmission bandwidth, and the two guard bandwidths are located at the left and right ends of the transmission bandwidth configuration, respectively; such as Figure 15 As shown in (a) to (c), carrier bandwidth #1 consists of guard bandwidth #1, guard bandwidth #2, and transmission bandwidth configuration #1; carrier bandwidth #2 consists of guard bandwidth #3, guard bandwidth #4, and transmission bandwidth configuration #2. Taking the first guard bandwidth and the second guard bandwidth being continuous as an example, the first guard bandwidth can be guard bandwidth #2, and correspondingly, the second guard bandwidth is guard bandwidth #3; or, the first guard bandwidth can be guard bandwidth #3, and correspondingly, the second guard bandwidth is guard bandwidth #2.

[0276] like Figure 15 As shown in (a), in the frequency domain resources of WUS, the frequency domain resources located in guard bandwidth #2 are equal to the frequency domain resources located in guard bandwidth #3; or, as Figure 15 As shown in (b), in the frequency domain resources of WUS, the frequency domain resources located in guard bandwidth #2 are smaller than those located in guard bandwidth #3; as Figure 15 As shown in (c), in the frequency domain resources of WUS, the frequency domain resources located in guard bandwidth #2 are greater than the frequency domain resources located in guard bandwidth #3.

[0277] In other words, when all resources in the frequency domain of WUS are located within the first protection bandwidth and the second protection bandwidth, the frequency domain resources located within the first protection bandwidth can be greater than the frequency domain resources located within the second protection bandwidth, or the frequency domain resources located within the first protection bandwidth can be less than the frequency domain resources located within the second protection bandwidth, or the frequency domain resources located within the first protection bandwidth can be equal to the frequency domain resources located within the second protection bandwidth.

[0278] Optionally, in this example, since all frequency domain resources of WUS are located within the first and second guard bandwidths, WUS does not need to be transmitted within the transmission bandwidth configuration. It is understood that in current WUS transmission, signals are transmitted within the transmission bandwidth configuration, and the transmission bandwidth configuration within a carrier bandwidth needs to be configured for devices supporting the frequency of that carrier bandwidth. However, since signals are not transmitted within the guard bandwidth, there are currently no restrictions on the applicable devices for the guard bandwidth; therefore, the guard bandwidth can be shared with any device. That is, even if the first device is not applicable to the carrier frequencies of the first and second transmission bandwidth configurations (or, in other words, the frequency of the carrier bandwidth where the first and second transmission bandwidth configurations are located), the first device can still receive signals within the first and second guard bandwidths; that is, the frequency domain resources of WUS can be located within the first guard bandwidth.

[0279] The second transmission bandwidth configuration and the second protection bandwidth are located within the same carrier bandwidth. Furthermore, since the first protection bandwidth and the second protection bandwidth are located within adjacent carrier bandwidths, it can also be considered that the second transmission bandwidth configuration and the first transmission bandwidth configuration are located within adjacent carrier bandwidths.

[0280] Optionally, both the first protection bandwidth and the second protection bandwidth may be located within the uplink carrier bandwidth; that is, the carrier bandwidth in which both the first protection bandwidth and the second protection bandwidth are located is the uplink carrier bandwidth. Alternatively, both the first protection bandwidth and the second protection bandwidth may be located within the downlink carrier bandwidth; that is, the carrier bandwidth in which both the first protection bandwidth and the second protection bandwidth are located is the downlink carrier bandwidth.

[0281] For example, the implementation of uplink carrier bandwidth and downlink carrier bandwidth can be found in the relevant descriptions of the above embodiments, and will not be repeated here.

[0282] Optionally, in this example, some or all of the resources in the first transmission bandwidth configuration can be allocated to signals other than WUS.

[0283] For example, when a portion of the resources in the first transmission bandwidth configuration is allocated to signals other than WUS, the interval between the portion of the resources in the first transmission bandwidth configuration and the remaining resources of WUS is greater than or equal to the signal interval.

[0284] For example, the implementation of signal spacing can be found in the aforementioned related technologies, and will not be repeated here.

[0285] Optionally, the frequency domain resources of WUS can be configured autonomously by the second device based on the carrier frequency applicable to the first device; or, the second device can determine them based on the capabilities of the first device.

[0286] For example, when the frequency domain resources of WUS are determined by the second device based on the capabilities of the first device, the capabilities of the first device can be indicated by second capability information. That is, the first device can report the second capability information to the second device, so that the second device can determine the frequency domain resources of WUS based on the second capability information.

[0287] Specifically, the implementation of the second capability information can be found in the relevant description of the above embodiments, and will not be repeated here.

[0288] Based on this example, all resources in the frequency domain of WUS can be located within multiple guard bandwidths, allowing WUS to be transmitted within multiple guard bandwidths. Compared to a scheme that transmits WUS only within the carrier bandwidth, this improves the spectral utilization of the carrier bandwidth. Furthermore, since WUS can be transmitted within multiple guard bandwidths, this increases the flexibility of configuring WUS compared to a scheme that transmits WUS within a single guard bandwidth.

[0289] It is understood that in the above-mentioned second scenario, the frequency domain resources of WUS are located within the first protection bandwidth and the second protection bandwidth, or the frequency domain resources of WUS are located within the first protection bandwidth, the second protection bandwidth, and the first transmission bandwidth configuration; and the first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth, and the first protection bandwidth and the second protection bandwidth are located within adjacent carrier bandwidths; therefore, it can be considered that in the second scenario, the frequency domain resources of WUS are located within multiple carrier bandwidths (or adjacent carrier bandwidths).

[0290] Combining the two scenarios above, optionally, the frequency domain resources of WUS include at least one frequency domain cell, or in other words, the frequency domain resources of WUS are composed of at least one frequency domain cell. Wherein, any two frequency domain cells within the at least one frequency domain cell included in the frequency domain resources of WUS are of the same size.

[0291] For example, the frequency domain element can be any of the following: subcarrier, subcarrier spacing (SCS), RB, or RE.

[0292] Specifically, when the frequency domain unit is a subcarrier, the size of the frequency domain unit can be understood as the width of the subcarrier.

[0293] Optionally, the size of the frequency domain unit in the frequency domain resources of WUS is related to the size of the frequency domain unit in the first transmission bandwidth configuration; or, the size of the frequency domain unit in the frequency domain resources of WUS is related to the size of the frequency domain unit in the second transmission bandwidth configuration.

[0294] For example, such as Figure 13 As shown, carrier bandwidth #1 consists of guard bandwidth #1, guard bandwidth #2, and transmission bandwidth configuration #1; carrier bandwidth #2 consists of guard bandwidth #3, guard bandwidth #4, and transmission bandwidth configuration #2. The first guard bandwidth can be guard bandwidth #2, and correspondingly, the second guard bandwidth is guard bandwidth #3. In this case, the first transmission bandwidth configuration is transmission bandwidth configuration #1, and the second transmission bandwidth configuration is transmission bandwidth configuration #2. Alternatively, the first guard bandwidth can be guard bandwidth #3, and correspondingly, the second guard bandwidth is guard bandwidth #2. In this case, the first transmission bandwidth configuration is transmission bandwidth configuration #2, and the second transmission bandwidth configuration is transmission bandwidth configuration #1.

[0295] For example, the first transmission bandwidth configuration includes at least one frequency domain unit, or in other words, the first transmission bandwidth configuration is composed of at least one frequency domain unit. Similarly, the second transmission bandwidth configuration includes at least one frequency domain unit, or in other words, the second transmission bandwidth configuration is composed of at least one frequency domain unit.

[0296] Therefore, the set consisting of at least one frequency domain unit within the first transmission bandwidth configuration can be called the frequency domain unit set, or the set consisting of at least one frequency domain unit within the first transmission bandwidth configuration and at least one frequency domain unit within the second transmission bandwidth configuration can be called the frequency domain unit set; in this case, it can be considered that the size of the frequency domain unit in the frequency domain resource of WUS is related to the size of the frequency domain unit in the frequency domain unit set.

[0297] For ease of description, any frequency domain unit in the frequency domain resources of WUS will be referred to as the first frequency domain unit, and the frequency domain unit related to the first frequency domain unit in the set of frequency domain units will be referred to as the second frequency domain unit; this will be explained uniformly here and will not be repeated.

[0298] In other words, the size of the first frequency domain unit is related to the size of the second frequency domain unit. The second frequency domain unit is one of the frequency domain units in the set of frequency domain units.

[0299] For example, based on different implementations of WUS frequency domain resources, the second frequency domain unit may include the following two different implementations:

[0300] In the first possible implementation, the second frequency domain unit is any frequency domain unit in the set of frequency domain units.

[0301] For example, in this possible implementation, the set of frequency domain units may consist of at least one frequency domain unit within the first transmission bandwidth configuration; or, the set of frequency domain units may also consist of at least one frequency domain unit within the first transmission bandwidth configuration and at least one frequency domain unit within the second transmission bandwidth configuration.

[0302] That is, the set of frequency domain units includes at least one frequency domain unit for constituting a first transmission bandwidth configuration; or, the set of frequency domain units includes at least one frequency domain unit constituting a first transmission bandwidth configuration and at least one frequency domain unit constituting a second transmission bandwidth configuration.

[0303] It is understandable that for at least one frequency domain unit within a transmission bandwidth configuration, any two frequency domain units can have the same or different sizes. Therefore, when the frequency domain units within the set are not completely identical, if the second frequency domain unit is a different frequency domain unit within the set, the first frequency domain unit will also be different accordingly.

[0304] In the second possible implementation, the second frequency domain unit is the frequency domain unit in the set of frequency domain units that is closest in frequency to the frequency domain resource of WUS.

[0305] For example, in this possible implementation, the set of frequency domain units may consist of at least one frequency domain unit within the first transmission bandwidth configuration; or, the set of frequency domain units may also consist of at least one frequency domain unit within the first transmission bandwidth configuration and at least one frequency domain unit within the second transmission bandwidth configuration.

[0306] That is, the set of frequency domain units includes at least one frequency domain unit for constituting a first transmission bandwidth configuration; or, the set of frequency domain units includes at least one frequency domain unit constituting a first transmission bandwidth configuration and at least one frequency domain unit constituting a second transmission bandwidth configuration.

[0307] As an example, when the set of frequency domain units includes at least one frequency domain unit for constituting the first transmission bandwidth configuration, the second frequency domain unit is the frequency domain unit in the set of frequency domain units that is closest in frequency to the frequency domain resource of WUS. This can be understood as: the second frequency domain unit is the frequency domain unit in the first transmission bandwidth configuration that is closest in frequency to the frequency domain resource of WUS.

[0308] For example, taking a frequency domain unit as a subcarrier, if the first transmission bandwidth configuration includes subcarriers #1 to #20, then the second frequency domain unit is the subcarrier among subcarriers #1 to #20 whose frequency is closest to the frequency domain resource of WUS.

[0309] As another example, when the set of frequency domain units includes at least one frequency domain unit for constituting a first transmission bandwidth configuration and at least one frequency domain unit for constituting a second transmission bandwidth configuration, the second frequency domain unit is the frequency domain unit in the set of frequency domain units that is closest in frequency to the frequency domain resources of WUS. This can be understood as: the second frequency domain unit is the frequency domain unit in the first transmission bandwidth configuration and the second transmission bandwidth configuration that is closest in frequency to the frequency domain resources of WUS.

[0310] For example, taking the frequency domain unit as a subcarrier, if the first transmission bandwidth configuration includes subcarrier #1 to subcarrier #20, and the second transmission bandwidth configuration includes subcarrier #40 to subcarrier #60; that is, the second frequency domain unit is the subcarrier among subcarrier #1 to subcarrier #20 and subcarrier #40 to subcarrier #60 that is closest in frequency to the frequency domain resource of WUS.

[0311] In the third possible implementation, when the frequency domain unit set consists of at least one frequency domain unit within the first transmission bandwidth configuration and at least one frequency domain unit within the second transmission bandwidth configuration, the second frequency domain unit is any one of the frequency domain units in the frequency domain unit set located within the third transmission bandwidth configuration. The third transmission bandwidth configuration is the transmission bandwidth configuration in the first and second transmission bandwidth configurations that is closest in frequency to the frequency domain resources of WUS.

[0312] Specifically, when the first transmission bandwidth configuration and the second transmission bandwidth configuration are both the first and second transmission bandwidth configurations, and the transmission bandwidth configuration with the frequency closest to the frequency domain resource of WUS is the first transmission bandwidth configuration, then the third transmission bandwidth configuration is the second transmission bandwidth configuration; when the first transmission bandwidth configuration and the second transmission bandwidth configuration are both the first and second transmission bandwidth configurations, and the transmission bandwidth configuration with the frequency closest to the frequency domain resource of WUS is the second transmission bandwidth configuration, then the third transmission bandwidth configuration is the second transmission bandwidth configuration.

[0313] For example, the frequency domain unit set consists of at least one frequency domain unit in the first transmission bandwidth configuration and at least one frequency domain unit in the second transmission bandwidth configuration. It can also be understood that the frequency domain unit set includes at least one frequency domain unit for constituting the first transmission bandwidth configuration and at least one frequency domain unit for constituting the second transmission bandwidth configuration.

[0314] In other words, when the set of frequency domain units includes at least one frequency domain unit for constituting a first transmission bandwidth configuration and at least one frequency domain unit for constituting a second transmission bandwidth configuration, the second frequency domain unit is any one of the at least one frequency domain units included in the third transmission bandwidth configuration.

[0315] For example, taking a frequency domain unit as a subcarrier, a first transmission bandwidth configuration including subcarriers #1 to #20, and a second transmission bandwidth configuration including subcarriers #40 to #60 as an example; if the third transmission bandwidth configuration is the same as the first transmission bandwidth configuration, then the second frequency domain unit is any one of the subcarriers #1 to #20. If the third transmission bandwidth configuration is the same as the second transmission bandwidth configuration, then the second frequency domain unit is any one of the subcarriers #40 to #60.

[0316] In a fourth possible implementation, the second frequency domain unit is any one of the frequency domain units within the first BWP. The set of frequency domain units includes at least one BWP, and the first BWP is one of those at least one BWP.

[0317] In other words, the second frequency domain unit is a frequency domain unit in the set of frequency domain units, including: the second frequency domain unit is any frequency domain unit in the first BWP.

[0318] It is understood that a BWP can be composed of at least one frequency domain unit, and any two frequency domain units within the at least one frequency domain unit constituting a BWP are of the same size; the frequency domain units constituting different BWPs can be of the same or different sizes. Therefore, when the first BWP is a different BWP among at least one BWP (i.e., the second frequency domain unit is a frequency domain unit within a different BWP), the first frequency domain unit will also be different accordingly.

[0319] For example, when at least one BWP is located within the first transmission bandwidth configuration, the frequency domain unit set can be considered to include at least one frequency domain unit for constituting the first transmission bandwidth configuration; when some of the at least one BWP is located within the first transmission bandwidth configuration and another portion of the BWP is located within the second transmission bandwidth configuration, the frequency domain unit set can be considered to include at least one frequency domain unit for constituting the first transmission bandwidth configuration and at least one frequency domain unit for constituting the second transmission bandwidth configuration.

[0320] For example, when multiple BWPs in at least one BWP are located within the same transmission bandwidth configuration, the frequency domain units within the multiple BWPs may overlap, or the frequency domain units within the multiple BWPs may not overlap.

[0321] Optionally, the first BWP can be any one of at least one BWP; or, the first BWP can be the BWP with the frequency closest to the frequency domain resource of WUS among at least one BWP; or, the first BWP can be the largest BWP among at least one BWP; or, the first BWP can be the smallest BWP among at least one BWP; or, the first BWP can be the BWP with the largest frequency domain unit among at least one BWP; or, the first BWP can be the BWP with the smallest frequency domain unit among at least one BWP.

[0322] For example, each of the at least one BWP is composed of one or more frequency domain units. As mentioned above, any two frequency domain units within the at least one frequency domain unit constituting a BWP are of the same size, and the sizes of the frequency domain units constituting different BWPs can be the same or different. Therefore, when the sizes of the frequency domain units constituting different BWPs are different, the BWP with the largest frequency domain unit among the at least one BWP can be understood as: the BWP containing the largest frequency domain unit in the set of frequency domain units, or in other words, the BWP composed of the largest frequency domain units in the set of frequency domain units. Similarly, the BWP with the smallest frequency domain unit among the at least one BWP can be understood as: the BWP containing the smallest frequency domain unit in the set of frequency domain units, or in other words, the BWP composed of the smallest frequency domain units in the set of frequency domain units.

[0323] Combining the four possible implementations mentioned above, optionally, the first frequency domain unit is less than or equal to the second frequency domain unit. That is, the size of the first frequency domain unit is related to the size of the second frequency domain unit, including situations where the first frequency domain unit is less than or equal to the second frequency domain unit.

[0324] For example, the second device may determine the second frequency domain unit based on one of the four possible implementations described above, and further, use the second frequency domain unit as the first frequency domain unit (i.e., the first frequency domain unit is equal to the second frequency domain unit), and then determine the frequency domain unit of WUS based on the first frequency domain unit. Alternatively, the second frequency domain unit may be used to determine the first frequency domain unit, such that the first frequency domain unit is smaller than the second frequency domain unit, and then the frequency domain unit of WUS may be determined based on the first frequency domain unit.

[0325] Based on this optional scheme, it is understood that having the same frequency domain unit (e.g., subcarrier width) for two frequency domain resources can reduce interference between signals carried on these two frequency domain resources. Therefore, when the first frequency domain unit is equal to the second frequency domain unit, interference between signals can be reduced. When the first frequency domain unit is smaller than the second frequency domain unit, compared to the scheme where the first frequency domain unit is equal to the second frequency domain unit, the frequency domain resource of WUS is smaller, and its BWP (Breadth-Wide Port) in the carrier bandwidth is smaller, thereby improving the flexibility of the second device in configuring the frequency domain resource of WUS. Furthermore, since the frequency domain resource of WUS occupies a smaller BWP in the carrier bandwidth, compared to the scheme where the first frequency domain unit is equal to the second frequency domain unit, the spacing between the frequency domain resources of WUS and other signals can be increased, thereby reducing interference between signals.

[0326] In some implementations, some or all of the frequency domain resources of WUS are used to carry WUS.

[0327] For example, when all resources in the frequency domain of the WUS are used to carry the WUS, it means that there is no guard bandwidth in the frequency domain of the WUS, thereby improving the utilization of the spectrum. When only some resources in the frequency domain of the WUS are used to carry the WUS, the remaining resources in the frequency domain of the WUS other than those resources are guard bandwidth. This guard bandwidth is used to isolate the mutual interference between the signals on the transmission bandwidth configuration (such as the first transmission bandwidth configuration and / or the second transmission bandwidth configuration) and the WUS.

[0328] (i) All resources in the frequency domain of WUS are used to carry WUS:

[0329] Optionally, the interval between WUS and other signals is called the signal interval. That is, the frequency domain resources of WUS are separated from the frequency domain resources occupied by other signals by one or more frequency domain units, and these one or more frequency domain units constitute the signal interval. The signal interval is used to isolate mutual interference between WUS and other signals.

[0330] As an example, the frequency domain resources of the other signal can be located on the first transmission bandwidth configuration.

[0331] For example, in this example, the signal interval can be understood as: the signal interval between WUS and other signals in the first transmission bandwidth configuration; that is, the one or more frequency domain units are the signal interval between WUS and other signals in the first transmission bandwidth configuration.

[0332] For example, if some of the frequency domain resources of WUS are located within a single carrier bandwidth, and some of the frequency domain resources of WUS are located within a first protection bandwidth, while another portion of the resources are located within a first transmission bandwidth configuration (e.g.) Figure 9 (as shown in (a) or (b) in the text), or, if the frequency domain resources of the WUS are located within multiple carrier bandwidths, and part of the frequency domain resources of the WUS are located within the first protection bandwidth and the second protection bandwidth, and another part of the resources are located within the first transmission bandwidth configuration (e.g. Figure 14 If (a) or (b) is shown in the first transmission bandwidth configuration, then the one or more frequency domain units are all frequency domain units within the first transmission bandwidth configuration. That is to say, when the second device configures frequency domain resources for the other signal in the first transmission bandwidth configuration, it should be noted that there must be a signal interval between configuring frequency domain resources for the other signal and the frequency domain resources of WUS.

[0333] If the frequency domain resources of WUS are located within a single carrier bandwidth, and all resources in the frequency domain of WUS are located within the first guard bandwidth (e.g.) Figure 11 (as shown in (a) or (b) in the diagram), or, if the frequency domain resources of the WUS are located within multiple carrier bandwidths and all resources in the frequency domain of the WUS are located within the first guard bandwidth and the second guard bandwidth (e.g. Figure 15 As shown in any one of (a) to (b) in the above, the one or more frequency domain units can all be frequency domain units in the first guard bandwidth; that is, when the second device configures frequency domain resources for the other signal in the first transmission bandwidth configuration, it can configure any frequency domain resource in the first transmission configuration bandwidth to the other resource. Alternatively, the one or more frequency domain units include frequency domain units in the first guard bandwidth and frequency domain units in the first transmission bandwidth configuration. That is, when the second device configures frequency domain resources for the other signal in the first transmission bandwidth configuration, it should be noted that there must be a signal interval between configuring frequency domain resources for the other signal and the frequency domain resources of WUS.

[0334] As an example, the frequency domain resources of the other signal may be located on a transmission bandwidth configuration in the carrier bandwidth adjacent to the carrier bandwidth where the first transmission configuration and / or the first guard bandwidth are located.

[0335] For example, in this example, the signal interval can be understood as: the signal interval between WUS and other signals in the second transmission bandwidth configuration; that is, the one or more frequency domain units are the signal interval between WUS and other signals in the second transmission bandwidth configuration.

[0336] For example, the transmission bandwidth configuration in the carrier bandwidth adjacent to the carrier bandwidth where the first transmission configuration and / or the first protection bandwidth is located can be the second transmission bandwidth configuration. For ease of description, the transmission bandwidth configuration in the carrier bandwidth adjacent to the carrier bandwidth where the first transmission configuration and / or the first protection bandwidth is located will be referred to as the second transmission bandwidth configuration. It will be described uniformly here and will not be repeated.

[0337] For example, if some of the frequency domain resources of WUS are located within a single carrier bandwidth, and some of the frequency domain resources of WUS are located within a first protection bandwidth, while another portion of the resources are located within a first transmission bandwidth configuration (e.g.) Figure 9 (as shown in (a) or (b) in the diagram), or, if the frequency domain resources of the WUS are located within a single carrier bandwidth and all resources in the frequency domain of the WUS are located within the first guard bandwidth (e.g., Figure 11 If (a) or (b) is shown in the diagram, then the one or more frequency domain units can all be frequency domain units in the first guard bandwidth; or, the one or more frequency domain units include frequency domain units in the first guard bandwidth and frequency domain units in the second guard bandwidth. That is, when the second device configures frequency domain resources for the other signal in the second transmission bandwidth configuration, it can configure any frequency domain resource in the second transmission configuration bandwidth to the other resource.

[0338] If the frequency domain resources of WUS are located within multiple carrier bandwidths, and part of the frequency domain resources of WUS are located within the first protection bandwidth and the second protection bandwidth, while another part of the resources are located within the first transmission bandwidth configuration (e.g.) Figure 14 (as shown in (a) or (b) in the diagram), or, if the frequency domain resources of the WUS are located within multiple carrier bandwidths and all resources in the frequency domain of the WUS are located within the first guard bandwidth and the second guard bandwidth (e.g. Figure 15 If any one of (a) to (b) is shown in the diagram, then the one or more frequency domain units can all be frequency domain units in the second guard bandwidth; when the second device configures frequency domain resources for the other signal in the second transmission bandwidth configuration, it can configure any frequency domain resource in the second transmission configuration bandwidth to the other resource. Alternatively, the one or more frequency domain units include frequency domain units in the second guard bandwidth and frequency domain units in the second transmission bandwidth configuration. That is, when the second device configures frequency domain resources for the other signal in the second transmission bandwidth configuration, it should be noted that there must be a signal interval between configuring frequency domain resources for the other signal and the frequency domain resources of WUS.

[0339] For example, if some of the frequency domain resources of WUS are located within a single carrier bandwidth, and some of the frequency domain resources of WUS are located within a first protection bandwidth, while another portion of the resources are located within a first transmission bandwidth configuration (e.g.) Figure 9(as shown in (a) or (b) in the diagram), or, if the frequency domain resources of the WUS are located within a single carrier bandwidth and all resources in the frequency domain of the WUS are located within the first guard bandwidth (e.g., Figure 11 As shown in (a) or (b) in the diagram), and the one or more frequency domain units can all be frequency domain units in the first guard bandwidth; in this case, the one or more frequency domain units can also be considered as the interval between the edge of the carrier bandwidth where WUS is located and the WUS is located.

[0340] It should be understood that the two examples above illustrate the implementation of WUS frequency domain resources under different conditions. In fact, the two examples can also be used in combination. For example, signals other than WUS can be located within either the first or second transmission bandwidth configuration; wherein, the other signals located within the first transmission bandwidth configuration may be the same as or different from the other signals located within the second transmission bandwidth configuration. In this case, there is a signal interval between WUS and the other signals within the first transmission bandwidth configuration, and there is also a signal interval between WUS and the other signals within the second transmission bandwidth configuration. In this case, the implementation of WUS can be found in the relevant descriptions of the two examples above, and will not be repeated here.

[0341] Furthermore, in the two examples above, there may be no signal interval between WUS and other signals within the first transmission bandwidth configuration, and / or there may be no signal interval between WUS and other signals within the second transmission bandwidth configuration. That is, one or more frequency domain units included in the signal interval in the two examples above can be replaced with zero frequency domain units.

[0342] For example, when the first device or the device used to receive the other signal has strong performance, even if there is no gap between the other signal and WUS, there is no need to worry about interference between the signals. The first device can still successfully receive WUS, or the device used to receive the other signal can still successfully receive the other signal.

[0343] Optionally, combining the two examples above, the number of one or more frequency domain units used to isolate WUS from mutual interference with other signals besides WUS can be C, where C is a positive integer greater than or equal to 1.

[0344] For example, based on the foregoing, it is known that a subcarrier is 1kHz; therefore, when the frequency domain unit is a subcarrier, the signal interval between the signal in the frequency domain resource and transmission bandwidth configuration of WUS is greater than or equal to C frequency domain units, which can be understood as: the signal interval between the signal in the frequency domain resource and transmission bandwidth configuration of WUS is greater than or equal to CkHz.

[0345] For example, the value of C can be determined by the first device and informed to the second device, or the value of C can be determined by the second device. Alternatively, the value of C can be pre-agreed upon by the first and second devices, for example, it can be predefined by a protocol. Alternatively, the value of C can be equal to the number of frequency domain units in the WUS frequency domain resources, that is, in this case, the WUS frequency domain resources consist of C frequency domain units. Alternatively, the value of C can be a fixed value; for example, C can be a frequency value in the low-frequency range, or C can be a frequency value in the high-frequency range.

[0346] Specifically, the low-frequency range can be a frequency range less than or equal to 20 GHz; for example, C can be 15 kHz or 30 kHz. The high-frequency range can be a frequency range greater than 20 GHz; for example, C can be 60 kHz or 120 kHz.

[0347] (ii) A portion of the frequency domain resources of WUS are used to carry WUS:

[0348] For example, when a portion of the frequency domain resources of WUS are used to carry WUS, the frequency domain resources of WUS also include a third guard bandwidth and / or a fourth guard bandwidth. The third guard bandwidth and the fourth guard bandwidth are located at opposite ends of this portion of the resources.

[0349] For example, the third protection bandwidth may be located between WUS and other signals other than WUS located in the first transmission bandwidth configuration; correspondingly, the fourth protection bandwidth may be located between WUS and other signals other than WUS located in the second transmission bandwidth configuration.

[0350] Optionally, the width of the third protection bandwidth is greater than or equal to C frequency domain units, or the sum of the widths of the intervals between the third protection bandwidth and the signals in the first transmission bandwidth configuration is greater than or equal to C frequency domain units.

[0351] For example, when all resources in the frequency domain of WUS are within the first protection bandwidth, such as Figure 16 As shown in (a), the first protection bandwidth is protection bandwidth #1, and the first transmission bandwidth is configured as transmission bandwidth configuration #1; or, when all resources in the frequency domain of WUS are located within the first protection bandwidth and the second protection bandwidth, as shown in (a). Figure 16 As shown in (b), the first protection bandwidth is protection bandwidth #1, the first transmission bandwidth is configured as transmission bandwidth configuration #1, the second protection bandwidth is protection bandwidth #2, and the second transmission bandwidth is configured as transmission bandwidth configuration #2. At this time, the third protection bandwidth is also located within the first protection bandwidth. The size of the third protection bandwidth can be C1 frequency domain units. The third protection bandwidth is spaced C2 frequency domain units from the first transmission bandwidth configuration.

[0352] exist Figure 16 In (a) or (b), if C1≥C, or C1+C2≥C, or C2≥C, then other signals besides WUS located on the first transmission bandwidth configuration can be located at any position within the first transmission bandwidth configuration. That is, the second device allocates any frequency domain unit within the first transmission bandwidth to the other signal. Wherein, when C1≥C, C2 can be equal to 0; or, when C2≥C, C1 can be equal to 0. In this case, it can be considered that the frequency domain resources of WUS do not include the third guard bandwidth, i.e., the frequency domain resources of WUS do not contain the third guard bandwidth.

[0353] For example, when some of the frequency domain resources of WUS are located within the first protection bandwidth and another portion of the resources are located within the first transmission bandwidth, such as... Figure 16 As shown in (c), the first protection bandwidth is protection bandwidth #1, and the first transmission bandwidth is configured as transmission bandwidth configuration #1; or, when some resources in the frequency domain of WUS are located within the first protection bandwidth and the second protection bandwidth, and another portion of resources are located within the first transmission bandwidth, as shown in (c). Figure 16 As shown in (d), the first protection bandwidth is protection bandwidth #1, the first transmission bandwidth is configured as transmission bandwidth configuration #1, the second protection bandwidth is protection bandwidth #2, and the second transmission bandwidth is configured as transmission bandwidth configuration #2. At this time, the third protection bandwidth is also located within the first transmission bandwidth configuration. The size of the third protection bandwidth can be C1 frequency domain units. Figure 16 In (c) or (d), if C1≥C, then other signals located on the first transmission bandwidth configuration, excluding WUS, can be located in the remaining frequency domain resources within the first transmission bandwidth configuration, excluding WUS and the third protection bandwidth; that is, the second device can allocate the remaining frequency domain resources within the first transmission bandwidth configuration, excluding WUS and the third protection bandwidth, to the other signals.

[0354] Optionally, the width of the fourth protection bandwidth is greater than or equal to C frequency domain units, or the sum of the widths of the intervals between the fourth protection bandwidth and the signals in the second transmission bandwidth configuration is greater than or equal to C frequency domain units.

[0355] For example, such as Figure 16 As shown in (a), when all resources in the frequency domain of WUS are within the first guard bandwidth, or, as... Figure 16As shown in (c), when some of the frequency domain resources of WUS are located within the first protection bandwidth and another portion are located within the first transmission bandwidth, the first protection bandwidth is protection bandwidth #1, and the first transmission bandwidth is configured as transmission bandwidth configuration #1. At this time, the frequency domain resources of WUS are located within carrier bandwidth #1, and the carrier bandwidth adjacent to carrier bandwidth #1 is carrier bandwidth #2. Therefore, transmission bandwidth configuration #2 within carrier bandwidth #2 can also be considered as the second transmission bandwidth configuration. In this case, the fourth protection bandwidth can be located within the first protection bandwidth.

[0356] Or, such as Figure 16 As shown in (b), when all resources in the frequency domain of WUS are located within the first and second guard bandwidths, or, as... Figure 16 As shown in (c), when some of the frequency domain resources of WUS are located within the first protection bandwidth and the second protection bandwidth, and another portion of the resources are located within the first transmission bandwidth, the first protection bandwidth is protection bandwidth #1, the first transmission bandwidth is configured as transmission bandwidth configuration #1, the second protection bandwidth is protection bandwidth #2, and the second transmission bandwidth is configured as transmission bandwidth configuration #2. In this case, the fourth protection bandwidth can be located within the second protection bandwidth.

[0357] The fourth protection bandwidth can be C3 frequency domain units. The fourth protection bandwidth is spaced C4 frequency domain units from the second transmission bandwidth configuration. Figure 16 In any of (a) to (d), if C3 ≥ C, or C3 + C4 ≥ C, or C4 ≥ C, then other signals besides WUS located on the second transmission bandwidth configuration can be located at any position within the second transmission bandwidth configuration. That is, the second device allocates any frequency domain unit within the second transmission bandwidth to the other signal. Wherein, when C3 ≥ C, C4 can be equal to 0; or, when C4 ≥ C, C3 can be equal to 0. In this case, it can be considered that the frequency domain resources of WUS do not include the fourth guard bandwidth, i.e., the frequency domain resources of WUS do not contain the fourth guard bandwidth.

[0358] In addition, such as Figure 16 As shown in (a), when all resources in the frequency domain of WUS are within the first guard bandwidth, or, as... Figure 16As shown in (c), when part of the frequency domain resources of WUS are located within the first guard bandwidth and another part are located within the first transmission bandwidth, the third guard bandwidth is separated from the edge of its carrier bandwidth (i.e., carrier bandwidth #1) by a frequency domain unit of C5. Where C3≥C, or C3+C5≥C, or C5≥C, other signals besides WUS located on the second transmission bandwidth configuration can be located anywhere within the second transmission bandwidth configuration; that is, the second device allocates any frequency domain unit within the second transmission bandwidth to that other signal. Where C3≥C, C5 can be equal to 0; or, C5≥C, C3 can be equal to 0. In this case, it can be considered that the frequency domain resources of WUS do not include the fourth guard bandwidth, i.e., the frequency domain resources of WUS do not contain the fourth guard bandwidth.

[0359] For example, the third protection bandwidth and / or the fourth protection bandwidth may be determined by the second device based on the two optional schemes mentioned above, or the third protection bandwidth and / or the fourth protection bandwidth may be predefined by the protocol, which is not limited in this application.

[0360] Optionally, any one of the C frequency domain units in the above two optional schemes may be less than or equal to the first frequency domain unit, or any one of the C frequency domain units may be less than or equal to the second frequency domain unit.

[0361] For example, the implementation of the first frequency domain unit and the second frequency domain unit can be found in the relevant description of the first frequency domain unit and the second frequency domain unit in the above embodiments; in addition, the implementation of the value of C can also be found in the relevant description of the value of C in the above embodiments, and will not be repeated here.

[0362] Optionally, when the third protection bandwidth and / or the fourth protection bandwidth are determined by the second device, the second device may also determine the third protection bandwidth and / or the fourth protection bandwidth based on the capabilities reported by the first device.

[0363] For example, the second device may determine the third protection bandwidth and / or the fourth protection bandwidth based on the third capability information reported by the first device.

[0364] Specifically, such as Figure 17 As shown, prior to step S701, the signal transmission method further includes step S700C:

[0365] S700C: The first device sends third capability information to the second device, and the second device receives the third capability information from the first device accordingly.

[0366] The third capability information indicates whether the first device supports the absence of a protection bandwidth within the frequency domain resources of WUS, and / or indicates the value of C supported by the first device.

[0367] For example, when the third capability information indicates that there is no guard bandwidth within the frequency domain resources of WUS supported by the first device, the second device can configure frequency domain resources for WUS, wherein all frequency domain resources of WUS are used to carry WUS. Alternatively, when the third capability information indicates that there is no guard bandwidth within the frequency domain resources of WUS not supported by the first device, the second device can determine the third guard bandwidth and / or the fourth guard bandwidth based on the above embodiments, and then determine the frequency domain resources of WUS, so that a portion of the frequency domain resources of WUS are used to carry WUS.

[0368] When the third capability information indicates the value of C supported by the first device, the second device can determine the value of C indicated by the third capability information as the value of C in the C frequency domain units in the scheme described in the above embodiment; or, the second device can determine the value of C in the C frequency domain units in the scheme described in the above embodiment based on the value of C indicated by the third capability information; for example, let the value of C in the C frequency domain units in the scheme described in the above embodiment be less than or equal to the value of C indicated by the third capability information, and then determine the third protection bandwidth and / or the fourth protection bandwidth based on the value of C in the C frequency domain units in the scheme described in the above embodiment, and then determine the frequency domain resources of WUS, so that some or all of the frequency domain resources of WUS are used to carry WUS.

[0369] For example, based on the foregoing, when the first frequency domain unit is equal to the second frequency domain unit, the interference between other signals besides WUS in the transmission bandwidth configuration and WUS is small. Therefore, when the first frequency domain unit is equal to the second frequency domain unit, the third capability information can indicate that there is no protection bandwidth in the frequency domain resources that the first device supports for WUS.

[0370] For example, since the size of a single frequency domain unit differs when the first frequency domain unit is equal to the second frequency domain unit and when the first frequency domain unit is smaller than the second frequency domain unit, the value of C in the C frequency domain units when the first frequency domain unit is equal to the second frequency domain unit is different from the value of C in the C frequency domain units when the first frequency domain unit is smaller than the second frequency domain unit. Specifically, the value of C in the C frequency domain units when the first frequency domain unit is equal to the second frequency domain unit is less than the value of C in the C frequency domain units when the first frequency domain unit is smaller than the second frequency domain unit. Therefore, the first device can indicate the supported value of C based on the two cases: when the first frequency domain unit is equal to the second frequency domain unit and when the first frequency domain unit is smaller than the second frequency domain unit. In this case, the third indication information indicating the supported value of C by the first device can include: the third indication information indicating the supported value of C by the first device when the first frequency domain unit is equal to the second frequency domain unit, and / or, the third indication information indicating the supported value of C by the first device when the first frequency domain unit is smaller than the second frequency domain unit.

[0371] For example, in the above embodiments, the size of the frequency domain resources of the WUS (including guard bandwidth (i.e., including third guard bandwidth and / or fourth guard bandwidth, if any)) can be an integer multiple of RB. Here, one RB is a subcarrier of size A, for example, A = 12.

[0372] It should be noted that the correspondences described above are merely illustrative and do not represent that the relevant parameters only include the contents shown in the above correspondences; the relevant parameters may also include other relevant values ​​besides those in the above correspondences. Furthermore, while the above examples use tables to illustrate the correspondences, in reality, the correspondences can be represented in the form of lists, sets, etc., and this application does not impose any restrictions.

[0373] It should be noted that the various embodiments of this application can be implemented independently or in combination, without limitation. Unless otherwise specified or in conflict, the terminology and / or descriptions between the different embodiments provided in this application are consistent and can be referenced mutually. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0374] The foregoing primarily describes the solutions provided in this application from the perspective of device-to-device interaction. It is understood that each device, in order to achieve the aforementioned functions, includes corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, based on the algorithm steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware 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.

[0375] It is understood that, in order to achieve the aforementioned functions, the communication device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily recognize that, based on the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware 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.

[0376] This application embodiment can divide each device into functional modules according to the above method example. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0377] Figure 18 A schematic diagram of a communication device 1800 is shown. The communication device 1800 includes a processing module 1801 and a transceiver module 1802. This communication device can be used to implement the functions of the aforementioned first or second device.

[0378] In some embodiments, the communication device 1800 may further include a storage module. Figure 18 (Not shown in the image) is used to store program instructions and data.

[0379] In some embodiments, the transceiver module 1802, also referred to as a transceiver unit, is used to implement sending and / or receiving functions. The transceiver module 1802 may consist of a transceiver circuit, a transceiver, a transceiver unit, or a communication interface.

[0380] In some embodiments, the transceiver module 1802 may include a receiving module and a sending module, respectively used to perform the receiving or sending actions in the above method embodiments (i.e., the receiving and sending steps performed by the first device or the second device), and / or other processes to support the technology described herein; the processing module 1801 may be used to perform the processing actions in the above method embodiments (i.e., the processing steps (e.g., determining, acquiring, etc.) performed by the first device or the second device), and / or other processes to support the technology described herein.

[0381] When the communication device 1800 is used to perform the functions of the first device described above:

[0382] In some embodiments, the transceiver module 1802 is configured to receive indication information indicating frequency domain resources of the WUS, wherein some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, and the at least one guard bandwidth is the guard bandwidth in at least one carrier bandwidth of the channel. The transceiver module 1802 is also configured to receive the WUS on the frequency domain resources of the WUS.

[0383] Optionally, some or all of the frequency domain resources of WUS are located within at least one protection bandwidth, including: some or all of the frequency domain resources of WUS are located within a first protection bandwidth, and at least one protection bandwidth includes the first protection bandwidth.

[0384] Optionally, when a portion of the frequency domain resources of the WUS are located within the first protection bandwidth, and the remaining resources of the frequency domain resources of the WUS, excluding the portion of the resources, are located within the first transmission bandwidth configuration, the first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth.

[0385] Optionally, the transceiver module 1802 is also used to transmit first capability information, which indicates that the first device supports the ability to receive signals simultaneously in both the protection bandwidth and transmission bandwidth configurations, wherein the protection bandwidth and transmission bandwidth configurations are located within the same carrier bandwidth.

[0386] Optionally, the first capability information indicates that the first device supports the ability to simultaneously receive signals on both the protection bandwidth and the transmission bandwidth configuration, including: the first capability information indicating whether the first device supports simultaneously receiving signals on both the protection bandwidth and the transmission bandwidth configuration; or, the first capability information indicating the size of the protection bandwidth and the size of the transmission bandwidth configuration supported by the first device, wherein the protection bandwidth and the transmission bandwidth configuration are used for the first device to simultaneously receive signals.

[0387] Optionally, all resources in the frequency domain of WUS are located within a first protection bandwidth; the first protection bandwidth is located within an uplink carrier bandwidth, and at least one carrier bandwidth includes the uplink carrier bandwidth; or, the first protection bandwidth is located within a downlink carrier bandwidth, and at least one carrier bandwidth includes the downlink carrier bandwidth.

[0388] Optionally, the transceiver module 1802 is also used to transmit second capability information, which indicates that the first device supports the ability to receive signals over the protection bandwidth.

[0389] Optionally, the second capability information indicates the capability of the first device to receive signals on the guard bandwidth, including: the second capability information indicating whether the first device supports receiving signals on the guard bandwidth; or, the second capability information indicating the size of the guard bandwidth supported by the first device, the guard bandwidth being used by the first device to receive signals.

[0390] Optionally, the second capability information indicates that the first device supports the ability to receive signals on the guard bandwidth, including: the second capability information indicates that the first device supports the ability to receive signals on the guard bandwidth in the uplink carrier bandwidth; and / or, the second capability information indicates that the first device supports the ability to receive signals on the guard bandwidth in the downlink carrier bandwidth.

[0391] Optionally, some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, including: some or all of the frequency domain resources of the WUS are located within a first guard bandwidth and a second guard bandwidth, the at least one guard bandwidth includes a first guard bandwidth and a second guard bandwidth, and the first guard bandwidth and the second guard bandwidth are located within adjacent carrier bandwidths.

[0392] Optionally, some of the frequency domain resources of WUS are located within the first protection bandwidth and the second protection bandwidth, and the remaining resources of WUS's frequency domain resources, excluding some resources, are located within the first transmission bandwidth configuration. The first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth.

[0393] Optionally, a portion of the frequency domain resources is used to carry WUS. The frequency domain resources of WUS also include a third guard bandwidth and / or a fourth guard bandwidth, which are located at opposite ends of the portion of the resources.

[0394] Optionally, the width of the third protection bandwidth is greater than or equal to C frequency domain units, or the sum of the widths of the intervals between the third protection bandwidth and the signals in the first transmission bandwidth configuration is greater than or equal to C frequency domain units, the frequency domain resources of WUS are located within the first protection bandwidth, the first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth, and C is a positive integer greater than or equal to 1; and / or, the width of the fourth protection bandwidth is greater than or equal to C frequency domain units, or the sum of the widths of the intervals between the fourth protection bandwidth and the signals in the second transmission bandwidth configuration is greater than or equal to C frequency domain units, and the first transmission bandwidth configuration and the second transmission bandwidth configuration are located within adjacent carrier bandwidths.

[0395] Optionally, the transceiver module 1802 is also used to send third capability information, which indicates whether the first device supports the absence of a protection bandwidth in the frequency domain resources of WUS, and / or indicates the value of C supported by the first device.

[0396] Optionally, the size of the first frequency domain unit is related to the size of the second frequency domain unit; wherein, the first frequency domain unit is any one of the at least one frequency domain units included in the frequency domain resources of WUS, and the second frequency domain unit is one frequency domain unit in the set of frequency domain units; the set of frequency domain units includes at least one frequency domain unit within the first transmission bandwidth configuration, the first transmission bandwidth configuration and the first protection bandwidth are located within the same carrier bandwidth, and the at least one protection bandwidth includes the first protection bandwidth; or, the set of frequency domain units includes at least one frequency domain unit within the first transmission bandwidth configuration and at least one frequency domain unit within the second transmission bandwidth configuration, the second transmission bandwidth configuration and the second protection bandwidth are located within the same carrier bandwidth, and the at least one protection bandwidth also includes the second protection bandwidth.

[0397] Optionally, the first frequency domain unit is less than or equal to the second frequency domain unit; wherein, the second frequency domain unit is a frequency domain unit in a set of frequency domain units, including: the second frequency domain unit is any one of the frequency domain units in the set of frequency domain units; the set of frequency domain units includes at least one frequency domain unit for constituting the first transmission bandwidth configuration, and the second frequency domain unit is the frequency domain unit among the at least one frequency domain unit for constituting the first transmission bandwidth configuration that is closest in frequency to the frequency domain resources of WUS; or, the set of frequency domain units includes at least one frequency domain unit for constituting the first transmission bandwidth configuration and at least one frequency domain unit for constituting the second transmission bandwidth configuration, the second frequency domain unit is any one of the at least one frequency domain units included in the third transmission bandwidth configuration, and the third transmission bandwidth configuration is the transmission bandwidth configuration among the first transmission bandwidth configuration and the second transmission bandwidth configuration that is closest in frequency to the frequency domain resources of WUS.

[0398] Optionally, the first frequency domain unit is less than or equal to the second frequency domain unit; wherein, the second frequency domain unit is a frequency domain unit in the set of frequency domain units, including: the second frequency domain unit is any one of at least one frequency domain units within the first partial bandwidth BWP, and the first BWP is a BWP in the set of at least one BWP.

[0399] Optionally, the first BWP can be any one of at least one BWP; or, the first BWP can be the BWP with the frequency closest to the frequency domain resource of WUS among at least one BWP; or, the first BWP can be the largest BWP among at least one BWP; or, the first BWP can be the smallest BWP among at least one BWP; or, the first BWP can be the BWP with the largest frequency domain unit among at least one BWP; or, the first BWP can be the BWP with the smallest frequency domain unit among at least one BWP.

[0400] When the communication device 1800 is used to implement the functions of the second device described above:

[0401] In some embodiments, processing module 1801 is configured to determine indication information, the indication information indicating frequency domain resources of the WUS, wherein some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, and the at least one guard bandwidth is the guard bandwidth in at least one carrier bandwidth of the channel. Transceiver module 1802 is configured to transmit the indication information.

[0402] Optionally, some or all of the frequency domain resources of WUS are located within at least one protection bandwidth, including: some or all of the frequency domain resources of WUS are located within a first protection bandwidth, and at least one protection bandwidth includes the first protection bandwidth.

[0403] Optionally, when a portion of the frequency domain resources of the WUS are located within the first protection bandwidth, and the remaining resources of the frequency domain resources of the WUS, excluding the portion of the resources, are located within the first transmission bandwidth configuration, the first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth.

[0404] Optionally, the transceiver module 1802 is also used to receive first capability information, which indicates that the first device supports the ability to receive signals simultaneously in both the protection bandwidth and transmission bandwidth configurations, wherein the protection bandwidth and transmission bandwidth configurations are located within the same carrier bandwidth.

[0405] Optionally, the first capability information indicates that the first device supports the ability to simultaneously receive signals on both the protection bandwidth and the transmission bandwidth configuration, including: the first capability information indicating whether the first device supports simultaneously receiving signals on both the protection bandwidth and the transmission bandwidth configuration; or, the first capability information indicating the size of the protection bandwidth and the size of the transmission bandwidth configuration supported by the first device, wherein the protection bandwidth and the transmission bandwidth configuration are used for the first device to simultaneously receive signals.

[0406] Optionally, all resources in the frequency domain of WUS are located within a first protection bandwidth; the first protection bandwidth is located within an uplink carrier bandwidth, and at least one carrier bandwidth includes the uplink carrier bandwidth; or, the first protection bandwidth is located within a downlink carrier bandwidth, and at least one carrier bandwidth includes the downlink carrier bandwidth.

[0407] Optionally, the transceiver module 1802 is also configured to receive second capability information, which indicates that the first device supports the ability to receive signals over the protection bandwidth.

[0408] Optionally, the second capability information indicates the capability of the first device to receive signals on the guard bandwidth, including: the second capability information indicating whether the first device supports receiving signals on the guard bandwidth; or, the second capability information indicating the size of the guard bandwidth supported by the first device, the guard bandwidth being used by the first device to receive signals.

[0409] Optionally, the second capability information indicates that the first device supports the ability to receive signals on the guard bandwidth, including: the second capability information indicates that the first device supports the ability to receive signals on the guard bandwidth in the uplink carrier bandwidth; and / or, the second capability information indicates that the first device supports the ability to receive signals on the guard bandwidth in the downlink carrier bandwidth.

[0410] Optionally, some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, including: some or all of the frequency domain resources of the WUS are located within a first guard bandwidth and a second guard bandwidth, the at least one guard bandwidth includes a first guard bandwidth and a second guard bandwidth, and the first guard bandwidth and the second guard bandwidth are located within adjacent carrier bandwidths.

[0411] Optionally, some of the frequency domain resources of WUS are located within the first protection bandwidth and the second protection bandwidth, and the remaining resources of WUS's frequency domain resources, excluding some resources, are located within the first transmission bandwidth configuration. The first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth.

[0412] Optionally, a portion of the frequency domain resources is used to carry WUS. The frequency domain resources of WUS also include a third guard bandwidth and / or a fourth guard bandwidth, which are located at opposite ends of the portion of the resources.

[0413] Optionally, the width of the third protection bandwidth is greater than or equal to C frequency domain units, or the sum of the widths of the intervals between the third protection bandwidth and the signals in the first transmission bandwidth configuration is greater than or equal to C frequency domain units, the frequency domain resources of WUS are located within the first protection bandwidth, the first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth, and C is a positive integer greater than or equal to 1; and / or, the width of the fourth protection bandwidth is greater than or equal to C frequency domain units, or the sum of the widths of the intervals between the fourth protection bandwidth and the signals in the second transmission bandwidth configuration is greater than or equal to C frequency domain units, and the first transmission bandwidth configuration and the second transmission bandwidth configuration are located within adjacent carrier bandwidths.

[0414] Optionally, the transceiver module 1802 is also used to receive third capability information, which indicates whether the first device supports the absence of a protection bandwidth within the frequency domain resources of WUS, and / or indicates the value of C supported by the first device.

[0415] Optionally, the size of the first frequency domain unit is related to the size of the second frequency domain unit; wherein, the first frequency domain unit is any one of the at least one frequency domain units included in the frequency domain resources of WUS, and the second frequency domain unit is one frequency domain unit in the set of frequency domain units; the set of frequency domain units includes at least one frequency domain unit within the first transmission bandwidth configuration, the first transmission bandwidth configuration and the first protection bandwidth are located within the same carrier bandwidth, and the at least one protection bandwidth includes the first protection bandwidth; or, the set of frequency domain units includes at least one frequency domain unit within the first transmission bandwidth configuration and at least one frequency domain unit within the second transmission bandwidth configuration, the second transmission bandwidth configuration and the second protection bandwidth are located within the same carrier bandwidth, and the at least one protection bandwidth also includes the second protection bandwidth.

[0416] Optionally, the first frequency domain unit is less than or equal to the second frequency domain unit; wherein, the second frequency domain unit is a frequency domain unit in a set of frequency domain units, including: the second frequency domain unit is any one of the frequency domain units in the set of frequency domain units; the set of frequency domain units includes at least one frequency domain unit for constituting the first transmission bandwidth configuration, and the second frequency domain unit is the frequency domain unit among the at least one frequency domain unit for constituting the first transmission bandwidth configuration that is closest in frequency to the frequency domain resources of WUS; or, the set of frequency domain units includes at least one frequency domain unit for constituting the first transmission bandwidth configuration and at least one frequency domain unit for constituting the second transmission bandwidth configuration, the second frequency domain unit is any one of the at least one frequency domain units included in the third transmission bandwidth configuration, and the third transmission bandwidth configuration is the transmission bandwidth configuration among the first transmission bandwidth configuration and the second transmission bandwidth configuration that is closest in frequency to the frequency domain resources of WUS.

[0417] Optionally, the first frequency domain unit is less than or equal to the second frequency domain unit; wherein, the second frequency domain unit is a frequency domain unit in the set of frequency domain units, including: the second frequency domain unit is any one of at least one frequency domain units within the first partial bandwidth BWP, and the first BWP is a BWP in the set of at least one BWP.

[0418] Optionally, the first BWP can be any one of at least one BWP; or, the first BWP can be the BWP with the frequency closest to the frequency domain resource of WUS among at least one BWP; or, the first BWP can be the largest BWP among at least one BWP; or, the first BWP can be the smallest BWP among at least one BWP; or, the first BWP can be the BWP with the largest frequency domain unit among at least one BWP; or, the first BWP can be the BWP with the smallest frequency domain unit among at least one BWP.

[0419] All relevant content of each step involved in the above method embodiments can be referenced from the functional description of the corresponding functional module, and will not be repeated here.

[0420] In this application, the communication device (such as the first device or the second device) 1800 is presented in the form of integrated functional modules. Here, "module" may refer to an application-specific integrated circuit (ASIC), a circuit, a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and / or other devices that can provide the above functions.

[0421] In some embodiments, those skilled in the art will recognize that the communication device 1800 can be implemented in hardware using... Figure 6 The communication device 600 shown is in the form of this device.

[0422] As an example, Figure 18 The function / implementation process of the processing module 1801 can be obtained through Figure 6 The processor 601 in the communication device 600 shown calls computer execution instructions stored in the memory 604 to implement the function. Figure 18 The function / implementation process of the transceiver module 1802 in the middle can be obtained through Figure 6 This is achieved through the communication interface 602 in the communication device 600 shown.

[0423] In some embodiments, when Figure 18 When the communication device 1800 is a chip or chip system, the function / implementation process of the transceiver module 1802 can be implemented through the input / output interface (or communication interface) of the chip or chip system, and the function / implementation process of the processing module 1801 can be implemented through the processor (or processing circuit) of the chip or chip system.

[0424] Since the communication device 1800 provided in this embodiment can execute the above method, the technical effects it can achieve can be referred to the above method embodiment, and will not be repeated here.

[0425] As a possible product form, the first or second device described in the embodiments of this application can also be implemented using one or more FPGAs, programmable logic devices (PLDs), controllers, state machines, gate logic, discrete hardware components, any other suitable circuits, or any combination of circuits capable of performing the various functions described throughout this application.

[0426] As another possible product form, the first or second device described in the embodiments of this application can be implemented using a general bus architecture. For ease of explanation, see [link to documentation]. Figure 19 , Figure 19 This is a schematic diagram of the structure of a communication device 1900 provided in an embodiment of this application. The communication device 1900 includes a processor 1901 and a transceiver 1902. The communication device 1900 can be a first device, or a chip or chip system therein; or, the communication device 1900 can be a second device, or a chip or module therein. Figure 19 Only the main components of the communication device 1900 are shown. In addition to the processor 1901 and transceiver 1902, the communication device may further include a memory 1903.

[0427] Optionally, the processor 1901 is primarily used to process communication protocols and data, control the entire communication device, execute software programs, and process the data from those programs. The memory 1903 is primarily used to store software programs and data. The transceiver 1902 may include radio frequency (RF) circuitry and an antenna. The RF circuitry is primarily used for converting baseband signals to RF signals and processing RF signals. The antenna is primarily used for transmitting and receiving RF signals in the form of electromagnetic waves.

[0428] Optionally, the processor 1901, transceiver 1902, and memory 1903 can be connected via a communication bus.

[0429] When the communication device is powered on, the processor 1901 can read the software program in the memory 1903, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be transmitted wirelessly, the processor 1901 performs baseband processing on the data to be transmitted and outputs the baseband signal to the radio frequency (RF) circuit. The RF circuit processes the baseband signal and transmits the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the communication device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor 1901. The processor 1901 converts the baseband signal into data and processes the data.

[0430] In another implementation, the radio frequency circuitry and antenna can be set up independently of the processor performing baseband processing. For example, in a distributed scenario, the radio frequency circuitry and antenna can be arranged remotely, independent of the communication device.

[0431] In some embodiments, this application also provides a communication device, which includes a processor for implementing the methods in any of the above method embodiments. The communication device may be a first device or a second device as described in the above method embodiments.

[0432] As one possible implementation, the communication device also includes a memory. This memory stores necessary computer programs and data. The computer program may include instructions, which a processor can invoke to instruct the communication device to execute the methods described in any of the above method embodiments. Alternatively, the memory may not be present in the communication device.

[0433] As another possible implementation, the communication device also includes an interface circuit, which is a code / data read / write interface circuit, used to receive computer execution instructions (which are stored in memory and may be read directly from memory or may be transmitted through other devices) and transmit them to the processor.

[0434] As another possible implementation, the communication device also includes a communication interface for communicating with modules outside the communication device.

[0435] It is understood that the communication device can be a chip or a chip system. When the communication device is a chip system, it can be composed of chips or may include chips and other discrete devices. This application does not specifically limit this.

[0436] This application also provides a computer-readable storage medium having a computer program or instructions stored thereon, which, when executed by a computer, implements the functions of any of the above-described method embodiments.

[0437] This application also provides a computer program product that, when executed by a computer, implements the functions of any of the above method embodiments.

[0438] 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.

[0439] It is understood that the systems, apparatuses, and methods described in this application can also 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 couplings or direct couplings or communication connections shown or discussed may be through some interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0440] The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. The components shown as units may or may not be physical units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0441] 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.

[0442] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software programs, implementation can be, in whole or in part, in the form of a computer program product. This computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device containing one or more servers, data centers, etc., that can be integrated with the medium. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state drive (SSD)). In this embodiment, the computer may include the aforementioned apparatus.

[0443] Although this application has been described herein in conjunction with various embodiments, those skilled in the art, by reviewing the accompanying drawings, disclosure, and appended claims, will understand and implement other variations of the disclosed embodiments in carrying out the claimed application. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce good results.

Claims

1. A signal transmission method, characterized in that, The method is performed by a first device, and the method includes: Receive indication information, the indication information indicating the frequency domain resources of the wake-up signal WUS, some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, the at least one guard bandwidth being the guard bandwidth in at least one carrier bandwidth of the channel; The WUS is received on the frequency domain resources of the WUS.

2. The method according to claim 1, characterized in that, Some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, including: Some or all of the frequency domain resources of the WUS are located within the first protection bandwidth, and the at least one protection bandwidth includes the first protection bandwidth.

3. The method according to claim 2, characterized in that, When a portion of the frequency domain resources of the WUS are located within the first protection bandwidth, the remaining resources of the frequency domain resources of the WUS, excluding the portion of resources, are located within the first transmission bandwidth configuration, and the first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth.

4. The method according to claim 3, characterized in that, Before receiving the indication information, the method further includes: Send first capability information, which indicates that the first device supports the ability to receive signals simultaneously on both the protection bandwidth and the transmission bandwidth configuration, wherein the protection bandwidth and the transmission bandwidth configuration are located within the same carrier bandwidth.

5. The method according to claim 4, characterized in that, The first capability information indicates that the first device supports the ability to simultaneously receive signals in both protection bandwidth and transmission bandwidth configurations, including: The first capability information indicates whether the first device supports receiving signals simultaneously in both the protection bandwidth and transmission bandwidth configurations; or, The first capability information indicates the size of the protection bandwidth and the size of the transmission bandwidth configuration supported by the first device, the protection bandwidth and the transmission bandwidth configuration being used for the first device to simultaneously receive signals.

6. The method according to claim 2, characterized in that, All resources in the frequency domain of the WUS are located within the first protection bandwidth; The first protection bandwidth is located within the uplink carrier bandwidth, and the at least one carrier bandwidth includes the uplink carrier bandwidth; or... The first protection bandwidth is located within the downlink carrier bandwidth, and the at least one carrier bandwidth includes the downlink carrier bandwidth.

7. The method according to claim 6, characterized in that, Before receiving the indication information, the method further includes: Send a second capability information, which indicates that the first device supports the ability to receive signals over the protection bandwidth.

8. The method according to claim 7, characterized in that, The second capability information indicates that the first device supports the ability to receive signals over the guard bandwidth, including: The second capability information indicates whether the first device supports receiving signals over the protection bandwidth; or, The second capability information indicates the size of the protection bandwidth supported by the first device, which is used by the first device to receive signals.

9. The method according to claim 7 or 8, characterized in that, The second capability information indicates that the first device supports the ability to receive signals over the guard bandwidth, including: The second capability information indicates the first device's ability to receive signals on the guard bandwidth within the uplink carrier bandwidth; and / or, The second capability information indicates that the first device supports the ability to receive signals on the guard bandwidth within the downlink carrier bandwidth.

10. The method according to claim 1, characterized in that, Some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, including: Some or all of the frequency domain resources of the WUS are located within the first protection bandwidth and the second protection bandwidth, and the at least one protection bandwidth includes the first protection bandwidth and the second protection bandwidth, which are located within adjacent carrier bandwidths.

11. The method according to claim 10, characterized in that, A portion of the frequency domain resources of the WUS are located within the first protection bandwidth and the second protection bandwidth, and the remaining resources of the frequency domain resources of the WUS, excluding the portion of resources, are located within the first transmission bandwidth configuration. The first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth.

12. The method according to any one of claims 1-11, characterized in that, A portion of the frequency domain resources is used to carry the WUS. The frequency domain resources of the WUS also include a third guard bandwidth and / or a fourth guard bandwidth, which are located at opposite ends of the portion of the resources.

13. The method according to claim 12, characterized in that, The width of the third protection bandwidth is greater than or equal to C frequency domain units, or the sum of the widths of the intervals between the third protection bandwidth and the signals in the first transmission bandwidth configuration is greater than or equal to C frequency domain units, the frequency domain resources of the WUS are located within the first protection bandwidth, the first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth, and C is a positive integer greater than or equal to 1; and / or, The width of the fourth protection bandwidth is greater than or equal to the C frequency domain units, or the sum of the widths of the intervals between the fourth protection bandwidth and the signals in the second transmission bandwidth configuration is greater than or equal to the C frequency domain units, and the first transmission bandwidth configuration and the second transmission bandwidth configuration are located within adjacent carrier bandwidths.

14. The method according to claim 12 or 13, characterized in that, Before receiving the indication information, the method further includes: Send third capability information, which indicates whether the first device supports the absence of a guard bandwidth within the frequency domain resources of WUS, and / or indicates the value of C supported by the first device.

15. The method according to any one of claims 1-14, characterized in that, The size of the first frequency domain unit is related to the size of the second frequency domain unit; Wherein, the first frequency domain unit is any one of the at least one frequency domain units included in the frequency domain resources of the WUS, and the second frequency domain unit is one frequency domain unit in the set of frequency domain units; The set of frequency domain units includes at least one frequency domain unit within a first transmission bandwidth configuration, wherein the first transmission bandwidth configuration and the first guard bandwidth are located within the same carrier bandwidth, and the at least one guard bandwidth includes the first guard bandwidth; or... The set of frequency domain units includes at least one frequency domain unit within a first transmission bandwidth configuration and at least one frequency domain unit within a second transmission bandwidth configuration, wherein the second transmission bandwidth configuration and the second protection bandwidth are located within the same carrier bandwidth, and the at least one protection bandwidth further includes the second protection bandwidth.

16. The method according to claim 15, characterized in that, The first frequency domain unit is less than or equal to the second frequency domain unit; The second frequency domain unit is one frequency domain unit in the set of frequency domain units, including: The second frequency domain unit is any one of the frequency domain units in the set of frequency domain units; The set of frequency domain units includes at least one frequency domain unit for constituting the first transmission bandwidth configuration, and the second frequency domain unit is the frequency domain unit among the at least one frequency domain unit constituting the first transmission bandwidth configuration whose frequency is closest to the frequency domain resource of the WUS; or... The set of frequency domain units includes at least one frequency domain unit for constituting the first transmission bandwidth configuration and at least one frequency domain unit for constituting the second transmission bandwidth configuration. The second frequency domain unit is any one of the at least one frequency domain units included in the third transmission bandwidth configuration. The third transmission bandwidth configuration is the transmission bandwidth configuration that is closest in frequency to the frequency domain resource of the WUS between the first transmission bandwidth configuration and the second transmission bandwidth configuration.

17. The method according to claim 15, characterized in that, The first frequency domain unit is less than or equal to the second frequency domain unit; The second frequency domain unit is one frequency domain unit in the set of frequency domain units, including: The second frequency domain unit is any one of at least one frequency domain units within the first bandwidth BWP, and the first BWP is one of at least one BWP in the set of frequency domain units.

18. A signal transmission method, characterized in that, The method is performed by a second device, and the method includes: Determine indication information, the indication information indicating the frequency domain resources of the wake-up signal WUS, some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, the at least one guard bandwidth being the guard bandwidth in at least one carrier bandwidth of the channel; Send the instruction information.

19. The method according to claim 18, characterized in that, Some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, including: Some or all of the frequency domain resources of the WUS are located within the first protection bandwidth, and the at least one protection bandwidth includes the first protection bandwidth.

20. The method according to claim 19, characterized in that, When a portion of the frequency domain resources of the WUS are located within the first protection bandwidth, the remaining resources of the frequency domain resources of the WUS, excluding the portion of resources, are located within the first transmission bandwidth configuration, and the first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth.

21. The method according to claim 20, characterized in that, Sending the indication information includes: sending the indication information to the first device; Prior to determining the indication information, the method further includes: The device receives first capability information indicating that it supports the ability to simultaneously receive signals in both a protection bandwidth and a transmission bandwidth configuration, wherein the protection bandwidth and the transmission bandwidth configuration are located within the same carrier bandwidth.

22. The method according to claim 19, characterized in that, All resources in the frequency domain of the WUS are located within the first protection bandwidth; The first protection bandwidth is located within the uplink carrier bandwidth, and the at least one carrier bandwidth includes the uplink carrier bandwidth; or... The first protection bandwidth is located within the downlink carrier bandwidth, and the at least one carrier bandwidth includes the downlink carrier bandwidth.

23. The method according to claim 22, characterized in that, Sending the indication information includes: sending the indication information to the first device; Prior to determining the indication information, the method further includes: The first device receives second capability information, which indicates that the first device supports the ability to receive signals over the protection bandwidth.

24. The method according to claim 18, characterized in that, Some or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, including: Some or all of the frequency domain resources of the WUS are located within the first protection bandwidth and the second protection bandwidth, and the at least one protection bandwidth includes the first protection bandwidth and the second protection bandwidth, which are located within adjacent carrier bandwidths.

25. The method according to claim 24, characterized in that, When a portion of the frequency domain resources of the WUS are located within the first protection bandwidth and the second protection bandwidth, the remaining resources of the frequency domain resources of the WUS, excluding the portion of resources, are located within the first transmission bandwidth configuration, and the first protection bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth.

26. The method according to any one of claims 18-25, characterized in that, A portion of the frequency domain resources is used to carry the WUS. The frequency domain resources of the WUS also include a third guard bandwidth and / or a fourth guard bandwidth, which are located at opposite ends of the portion of the resources.

27. A communication device, characterized in that, The communication device includes a transceiver module and a processing module. The transceiver module is configured to perform the receiving or sending behavior in the method as described in any one of claims 1-17, or to perform the receiving or sending behavior in the method as described in any one of claims 18-26; The processing module is configured to perform the processing behavior in the method as described in any one of claims 1-17, or to perform the processing behavior in the method as described in any one of claims 18-26.

28. A communication device, characterized in that, The communication device includes a processor; the processor is configured to run a computer program or instructions to cause the communication device to perform the method as described in any one of claims 1-17, or to cause the communication device to perform the method as described in any one of claims 18-26.

29. A computer-readable storage medium, characterized in that, A computer-readable storage medium stores computer instructions or programs that, when executed on a computer, cause the method as described in any one of claims 1-17 to be performed, or the method as described in any one of claims 18-26 to be performed.

30. A computer program product, characterized in that, The computer program product includes computer instructions; when some or all of the computer instructions are run on a computer, they cause the method of any one of claims 1-17 to be performed, and the method of any one of claims 18-26 to be performed.

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