Signal transmission method and apparatus

Abstract

The present application relates to the field of wireless communications, and provides a signal transmission method and apparatus, capable of improving frequency utilization. The method comprises: a first device receives indication information, and on frequency domain resources of a wake-up signal (WUS) indicated by the indication information, receives the WUS, wherein the indication information indicates the frequency domain resources of the WUS, 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 a guard bandwidth in at least one carrier bandwidth of a channel.

Description

Signal transmission method and apparatus

[0001] The present application claims priority from the Chinese patent application No. 202411348709.0 filed on September 25, 2024, and entitled "Signal transmission method and apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of wireless communication, and more particularly, to a signal transmission method and apparatus. BACKGROUND

[0003] In a communication system, packet data services are often bursty, and data transmission is occasionally active for a period of time and then remains silent for a longer period of time. From the perspective of delay, the terminal device monitors the physical downlink control channel (PDCCH) at all times to receive uplink scheduling or downlink data, and the resulting delay is minimal. However, constantly monitoring the PDCCH can result in significant power consumption.

[0004] In order to solve the contradiction between delay and power consumption, mechanisms such as discontinuous reception (DRX) and wake-up signal (WUS) are introduced in new radio (NR) to reduce the power consumption of terminal devices.

[0005] In order to further reduce the power consumption of terminal devices, 5G / NR (New Radio) has begun to study wake-up receivers (WUR). Terminal devices can monitor through WUR, and after monitoring WUS, the main transceiver can be turned on for data transmission and reception. However, WUS occupies the bandwidth of the main transceiver and uses the frequency domain resources of the main transceiver, resulting in a decrease in the spectral efficiency of the main transceiver. SUMMARY

[0006] The present application provides a signal transmission method and apparatus, which can improve frequency utilization.

[0007] In a first aspect, an embodiment of the present application provides a signal transmission method, which can be executed by a first device. The first device can refer to the first device itself, a component (for example, a communication module, a processor, a circuit, a chip, or a chip system) in the first device, or a logic module or software capable of realizing all or part of the functions of the first device. The method comprises: receiving indication information and receiving a wake-up signal (WUS) on a frequency domain resource of the WUS indicated by the indication information. The indication information indicates the frequency domain resource of the WUS, and part or all of the frequency domain resource of the WUS is located in at least one guard bandwidth. The at least one guard bandwidth is a guard bandwidth in at least one carrier bandwidth of a channel.

[0008] Based on the scheme, the first device can receive the WUS based on the frequency domain resource of the WUS configured by the second device (that is, receive the WUS on the frequency domain resource of the WUS). Part or all of the frequency domain resource of the WUS is located in at least one guard bandwidth in at least one carrier bandwidth (that is, the at least one guard bandwidth is a guard bandwidth in at least one carrier bandwidth of a channel). That is, when configuring the frequency domain resource of the WUS, the second device can consider configuring the guard bandwidth on the carrier bandwidth to the WUS, so that the WUS can be transmitted on the guard bandwidth. Compared with the scheme of transmitting the WUS only on the transmission bandwidth configuration in the carrier bandwidth, the frequency spectrum utilization of the carrier bandwidth can be improved.

[0009] In a possible design, part or all of the frequency domain resource of the WUS is located in the at least one guard bandwidth, including that part or all of the frequency domain resource of the WUS is located in a first guard bandwidth, and the at least one guard bandwidth includes the first guard bandwidth.

[0010] In a possible design, when part of the frequency domain resource of the WUS is located in the first guard bandwidth, the remaining resource of the frequency domain resource of the WUS except the part is located in a first transmission bandwidth configuration, and the first guard bandwidth and the first transmission bandwidth configuration are located in the same carrier bandwidth.

[0011] Based on the above two possible designs, part of the frequency domain resource of the WUS can be located in the guard bandwidth, and further, another part of the frequency domain resource of the WUS can be located in a transmission bandwidth configuration in the same carrier bandwidth as the guard bandwidth, so that the WUS can be transmitted in the transmission bandwidth configuration and the guard bandwidth. Compared with the scheme of transmitting the WUS only on the transmission bandwidth configuration in the carrier bandwidth, the frequency spectrum utilization of the carrier bandwidth can be improved.

[0012] Alternatively, all resources in the frequency domain resources of the WUS can be located within the guard bandwidth, so that the WUS can be transmitted within the guard bandwidth, which can improve the spectrum utilization of the carrier bandwidth compared with the scheme of transmitting the WUS on the transmission bandwidth configuration within the carrier bandwidth.

[0013] In a possible design, before receiving the indication information, the method further includes: transmitting first capability information, the first capability information indicating a capability of the first device to support simultaneous reception of signals on the guard bandwidth and the transmission bandwidth configuration, the guard bandwidth and the transmission bandwidth configuration being located within a same carrier bandwidth.

[0014] In a possible design, the first capability information indicating the capability of the first device to support simultaneous reception of signals on the guard bandwidth and the transmission bandwidth configuration includes: the first capability information indicating whether the first device supports simultaneous reception of signals on the guard bandwidth and the transmission bandwidth configuration; or the first capability information indicating a size of the guard bandwidth and a size of the transmission bandwidth configuration supported by the first device, the guard bandwidth and the transmission bandwidth configuration being used for the first device to simultaneously receive signals.

[0015] Based on the above two possible designs, the first device can report the first capability information to the second device, so that the second device can configure appropriate frequency domain resources of the WUS based on the first capability information; thereby avoiding the first device from being unable to receive the WUS on the frequency domain resources of the WUS configured by the second device, and providing a possible implementation for the first device to successfully receive the WUS.

[0016] In a possible design, all resources in the frequency domain resources of the WUS are located within a first guard bandwidth; the first guard bandwidth is located within an uplink carrier bandwidth, and the at least one carrier bandwidth includes the uplink carrier bandwidth; or the first guard bandwidth is located within a downlink carrier bandwidth, and the at least one carrier bandwidth includes the downlink carrier bandwidth.

[0017] In a possible design, before receiving the indication information, the method further includes: transmitting second capability information, the second capability information indicating a capability of the first device to support reception of signals on the guard bandwidth.

[0018] In a possible design, the second capability information indicating the capability of the first device to support reception of signals on the guard bandwidth includes: the second capability information indicating whether the first device supports reception of signals on the guard bandwidth; or the second capability information indicating a size of the guard bandwidth supported by the first device, the guard bandwidth being used for the first device to receive signals.

[0019] In a possible design, the second capability information indicates the capability of the first device to receive signals on the guard bandwidth, including: the second capability information indicates the capability of the first device to receive signals on the guard bandwidth in the uplink carrier bandwidth; and / or, the second capability information indicates the capability of the first device to receive signals on the guard bandwidth in the downlink carrier bandwidth.

[0020] 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 frequency domain resources of the WUS based on the second capability information; thereby avoiding the first device from being unable to receive the WUS on the frequency domain resources of the WUS configured by the second device, and providing another possible implementation for the first device to successfully receive the WUS.

[0021] In a possible design, part or all of the frequency domain resources of the WUS are located in at least one guard bandwidth, including: part or all of the frequency domain resources of the WUS are located in the first guard bandwidth and the 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 in the adjacent carrier bandwidth.

[0022] In a possible design, part of the frequency domain resources of the WUS are located in the first guard bandwidth and the second guard bandwidth, and the remaining resources of the frequency domain resources of the WUS except the part are located in the first transmission bandwidth configuration, and the first guard bandwidth is located in the same carrier bandwidth as the first transmission bandwidth configuration.

[0023] Based on the above two possible designs, part of the frequency domain resources of the WUS can be located in multiple guard bandwidths, and further, another part of the frequency domain resources of the WUS can be located in a transmission bandwidth configuration in the same carrier bandwidth as one of the multiple guard bandwidths, so that the WUS can be transmitted in the transmission bandwidth configuration and the guard bandwidth. Compared with the scheme of transmitting the WUS only on the transmission bandwidth configuration in the carrier bandwidth, the spectrum utilization of the carrier bandwidth can be improved.

[0024] Alternatively, all of the frequency domain resources of the WUS can be located in multiple guard bandwidths, so that the WUS can be transmitted in the multiple guard bandwidths. Compared with the scheme of transmitting the WUS only on the transmission bandwidth configuration in the carrier bandwidth, the spectrum utilization of the carrier bandwidth can be improved; further, since the WUS can be transmitted in multiple guard bandwidths, compared with the scheme of transmitting the WUS in a single guard bandwidth, the flexibility of configuring the WUS can be improved.

[0025] In a possible design, part of the frequency domain resources are used to carry the WUS, and the frequency domain resources of the WUS further include a third guard bandwidth and / or a fourth guard bandwidth, the third guard bandwidth and the fourth guard bandwidth are respectively located at two ends of the part of the frequency domain resources.

[0026] Based on this possible design, it can be understood that the guard bandwidth can be used to reduce the interference between signals; therefore, the third guard bandwidth and / or the fourth guard bandwidth can be included in the frequency domain resources of the WUS, and can be used to isolate the interference between the WUS and other signals except the WUS, thereby improving the reception performance of the WUS.

[0027] In a possible design, a width of the third guard bandwidth is greater than or equal to C frequency domain units, or a sum of widths of intervals between the third guard bandwidth and signals on 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 a same carrier bandwidth, and C is a positive integer greater than or equal to 1; and / or, a width of the fourth guard bandwidth is greater than or equal to C frequency domain units, or a sum of widths of intervals between the fourth guard bandwidth and signals on the second transmission bandwidth configuration is greater than or equal to C frequency domain units, the first transmission bandwidth configuration and the second transmission bandwidth configuration are located within adjacent carrier bandwidths.

[0028] 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 on 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 on 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 on 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 on the second transmission bandwidth configuration is greater than or equal to C frequency domain units. The C frequency domain units can be used to isolate the interference between the WUS and other signals except the WUS, so that the interference between signals is reduced, and the reception performance of the WUS is improved.

[0029] In a 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 that there is no guard bandwidth within the frequency domain resources of the WUS, and / or indicating a value of C supported by the first device.

[0030] Based on the possible design, the first device can report third capability information to the second device, so that the second device can configure a suitable third guard bandwidth and / or fourth guard bandwidth based on the third capability information, and then determine the frequency domain resource of the WUS; thereby avoiding the first device from being unable to receive the WUS on the frequency domain resource of the WUS configured by the second device, and providing another possible implementation for the first device to successfully receive the WUS.

[0031] In a possible design, the size of the first frequency domain unit is related to the size of the second frequency domain unit; the first frequency domain unit is any one of at least one frequency domain unit included in the frequency domain resource of the WUS, and the second frequency domain unit is one of the frequency domain units in the frequency domain unit set; the frequency domain unit set includes at least one frequency domain unit in the first transmission bandwidth configuration, the first transmission bandwidth configuration is located in the same carrier bandwidth as the first guard bandwidth, and the at least one guard bandwidth includes the first guard bandwidth; or, the frequency domain unit set includes 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, the second transmission bandwidth configuration is located in the same carrier bandwidth as the second guard bandwidth, and the at least one guard bandwidth further includes the second guard bandwidth.

[0032] In a possible design, the first frequency domain unit is smaller than or equal to the second frequency domain unit; the second frequency domain unit is one of the frequency domain units in the frequency domain unit set, including: the second frequency domain unit is any one of the at least one frequency domain unit for constituting the first transmission bandwidth configuration; the frequency domain unit set 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 closest to the frequency of the frequency domain resource of the WUS among the at least one frequency domain unit for constituting the first transmission bandwidth configuration; or, 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, and the second frequency domain unit is any one of the at least one frequency domain unit included in the third transmission bandwidth configuration, the third transmission bandwidth configuration being the transmission bandwidth configuration closest to the frequency of the frequency domain resource of the WUS among the first transmission bandwidth configuration and the second transmission bandwidth configuration.

[0033] In a possible design, the first frequency domain unit is smaller than or equal to the second frequency domain unit; the second frequency domain unit is one of the frequency domain units in the frequency domain unit set, including: the second frequency domain unit is any one of the at least one frequency domain unit in the first part bandwidth BWP, and the first BWP is one of the at least one BWP in the frequency domain unit set.

[0034] Based on the above three possible designs, it can be understood that the frequency domain units (such as subcarrier widths) of the two frequency domain resources are the same, which can reduce the interference between the signals carried on the two frequency domain resources; thereby when the first frequency domain unit is equal to the second frequency domain unit, the interference between the signals can be reduced. When the first frequency domain unit is smaller than the second frequency domain unit, compared with the scheme that the first frequency domain unit is equal to the second frequency domain unit, the frequency domain resource of the WUS is smaller, and the BWP occupied by the WUS in the carrier bandwidth is smaller, thereby the flexibility of the second device in configuring the frequency domain resource of the WUS can be improved. In addition, since the frequency domain resource of the WUS occupies a smaller BWP in the carrier bandwidth, compared with the scheme that the first frequency domain unit is equal to the second frequency domain unit, the interval between the frequency domain resource of the WUS and other signals can also be increased, thereby reducing the interference between the signals.

[0035] In a possible design, the first BWP is any one of the at least one BWP; or, the first BWP is the BWP closest in frequency to the frequency domain resource of the WUS among the at least one BWP; or, the first BWP is the largest BWP among the at least one BWP; or, the first BWP is the smallest BWP among the at least one BWP; or, the first BWP is the BWP with the largest frequency domain unit among the at least one BWP; or, the first BWP is the BWP with the smallest frequency domain unit among the at least one BWP.

[0036] In a second aspect, an embodiment of the present application provides a signal transmission method, which can be executed by a second device. In the absence of special description, the "second device" in the present application can refer to the second device itself, or a component (for example, a communication module, a processor, a circuit, a chip, or a chip system, etc.) in the second device, or a logic module or software capable of realizing all or part of the functions of the second device. The method comprises: determining indication information, and transmitting the indication information. The indication information indicates a frequency domain resource of a WUS, and part or all of the frequency domain resource of the WUS is located in at least one protection bandwidth, and the at least one protection bandwidth is a protection bandwidth in at least one carrier bandwidth of a channel.

[0037] Based on the scheme, the second device can configure the frequency domain resource of the WUS for the first device, so that the first device can receive the WUS on the frequency domain resource of the WUS. Part or all of the frequency domain resource of the WUS is located in at least one protection bandwidth in at least one carrier bandwidth (that is, the at least one protection bandwidth is a protection bandwidth in at least one carrier bandwidth of a channel); that is, when configuring the frequency domain resource of the WUS, the second device can consider configuring the protection bandwidth on the carrier bandwidth to the WUS, so that the WUS can be transmitted on the protection bandwidth, compared with the scheme of transmitting the WUS only on the transmission bandwidth in the carrier bandwidth, the spectrum utilization of the carrier bandwidth can be improved.

[0038] In a possible design, the part or all of the frequency domain resources of the WUS are located within the at least one guard bandwidth, including that the part or all of the frequency domain resources of the WUS are located within the first guard bandwidth, and the at least one guard bandwidth includes the first guard bandwidth.

[0039] In a possible design, when the part of the frequency domain resources of the WUS are located within the first guard bandwidth, the remaining resources of the frequency domain resources of the WUS except the part are located within the first transmission bandwidth configuration, and the first guard bandwidth and the first transmission bandwidth configuration are located within a same carrier bandwidth.

[0040] In a possible design, the method of sending the indication information includes: sending the indication information to the first device; and before determining the indication information, the method further includes: receiving first capability information, where the first capability information indicates a capability of the first device to support simultaneous reception of signals on a guard bandwidth and a transmission bandwidth configuration, and the guard bandwidth and the transmission bandwidth configuration are located within a same carrier bandwidth.

[0041] In a possible design, the first capability information indicates the capability of the first device to support simultaneous reception of signals on the guard bandwidth and the transmission bandwidth configuration, including that the first capability information indicates whether the first device supports simultaneous reception of signals on the guard bandwidth and the transmission bandwidth configuration, or the first capability information indicates a size of the guard bandwidth and a size of the transmission bandwidth configuration that are supported by the first device and used for the first device to simultaneously receive signals.

[0042] In a possible design, all of the frequency domain resources of the WUS are located within the first guard bandwidth; the first guard bandwidth is located within an uplink carrier bandwidth, and the at least one carrier bandwidth includes the uplink carrier bandwidth; or the first guard bandwidth is located within a downlink carrier bandwidth, and the at least one carrier bandwidth includes the downlink carrier bandwidth.

[0043] In a possible design, the method of sending the indication information includes: sending the indication information to the first device; and before determining the indication information, the method further includes: receiving second capability information, where the second capability information indicates a capability of the first device to support reception of signals on a guard bandwidth.

[0044] In a possible design, the second capability information indicates the capability of the first device to support reception of signals on the guard bandwidth, including that the second capability information indicates whether the first device supports reception of signals on the guard bandwidth, or the second capability information indicates a size of the guard bandwidth that is supported by the first device and used for the first device to receive signals.

[0045] In a possible design, the second capability information indicates the capability of the first device to support receiving signals on the guard bandwidth, including: the second capability information indicates the capability of the first device to support receiving signals on the guard bandwidth in the uplink carrier bandwidth; and / or, the second capability information indicates the capability of the first device to support receiving signals on the guard bandwidth in the downlink carrier bandwidth.

[0046] In a possible design, the part or all of the frequency domain resources of the WUS are located within the at least one guard bandwidth, including: the part or all of the frequency domain resources of the WUS are located within the first guard bandwidth and the second guard bandwidth, the at least one guard bandwidth including the first guard bandwidth and the second guard bandwidth, and the first guard bandwidth and the second guard bandwidth being located within the adjacent carrier bandwidths.

[0047] In a possible design, the part of the frequency domain resources of the WUS are located within the first guard bandwidth and the second guard bandwidth, and the remaining resources of the frequency domain resources of the WUS, except the part of the resources, are located within the first transmission bandwidth configuration, and the first guard bandwidth is located within the same carrier bandwidth as the first transmission bandwidth configuration.

[0048] In a possible design, the part of the frequency domain resources of the WUS are used to carry the WUS, and the frequency domain resources of the WUS further include a third guard bandwidth and / or a fourth guard bandwidth, and the third guard bandwidth and the fourth guard bandwidth are respectively located at two ends of the part of the resources.

[0049] Optionally, a width of the third guard bandwidth is greater than or equal to C frequency domain units, or a sum of widths of intervals between the third guard bandwidth and signals on 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 is located within the same carrier bandwidth as the first transmission bandwidth configuration, and C is a positive integer greater than or equal to 1; and / or, a width of the fourth guard bandwidth is greater than or equal to C frequency domain units, or a sum of widths of intervals between the fourth guard bandwidth and signals on 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.

[0050] In a possible design, the indication information is transmitted, including: the indication information is transmitted to the first device; and before the indication information is determined, the method further includes: receiving third capability information, the third capability information indicating whether the first device supports that there is no guard bandwidth within the frequency domain resources of the WUS, and / or indicating a value of C supported by the first device.

[0051] In a possible design, a size of the first frequency domain unit is related to a size of the second frequency domain unit; the first frequency domain unit is any one of at least one frequency domain unit included in a frequency domain resource of the WUS, and the second frequency domain unit is one of a set of frequency domain units; the set of frequency domain units includes at least one frequency domain unit in a first transmission bandwidth configuration, and the first guard bandwidth is in a same carrier bandwidth as the first transmission bandwidth configuration; or the set of frequency domain units includes at least one frequency domain unit in the first transmission bandwidth configuration and at least one frequency domain unit in a second transmission bandwidth configuration, and the second guard bandwidth is in a same carrier bandwidth as the second transmission bandwidth configuration.

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

[0053] In a possible design, the first frequency domain unit is smaller than or equal to the second frequency domain unit; the second frequency domain unit is one of a set of frequency domain units, including: the second frequency domain unit is any one of at least one frequency domain unit in a first bandwidth part (BWP), and the first BWP is one of at least one BWP in the set of frequency domain units.

[0054] In a possible design, the first BWP is any one of the at least one BWP; or the first BWP is a BWP that is closest in frequency to the frequency domain resource of the WUS among the at least one BWP; or the first BWP is a largest BWP among the at least one BWP; or the first BWP is a smallest BWP among the at least one BWP; or the first BWP is a BWP with a largest number of frequency domain units among the at least one BWP; or the first BWP is a BWP with a smallest number of frequency domain units among the at least one BWP.

[0055] The technical effects brought by any of the designs in the second aspect can refer to the technical effects brought by the corresponding designs in the first aspect, which will not be repeated here.

[0056] In a third aspect, a communication apparatus is provided for implementing various methods. The communication apparatus can be the first device in the first aspect, or the second device in the second aspect, or a chip or chip system included in the first device or the second device. The communication apparatus includes modules, units, or means corresponding to the methods, which can be implemented by hardware, software, or by a combination of hardware and software. The hardware or software includes one or more modules or units corresponding to the functions.

[0057] In some possible designs of the aspect, the communication apparatus can include a processing module and a transceiver module. The processing module can be configured to implement the processing functions in any of the aspects and any possible implementation manners thereof. The transceiver module can include a receiving module and a sending module, which are configured to implement the receiving function and the sending function in any of the aspects and any possible implementation manners thereof.

[0058] In some possible designs of the aspect, the transceiver module can be composed of a transceiver circuit, a transceiver, a transceiver, or a communication interface.

[0059] In a fourth aspect, a communication apparatus is provided, including a processor and a memory. The memory is configured to store computer instructions, and the processor is configured to execute the instructions to cause the communication apparatus to perform the method in any of the aspects. The communication apparatus can be the first device in the first aspect, or the second device in the second aspect, or a chip or chip system included in the first device or the second device. The communication apparatus includes modules, units, or means corresponding to the methods, which can be implemented by hardware, software, or by a combination of hardware and software. The hardware or software includes one or more modules or units corresponding to the functions.

[0060] In a fifth aspect, a communication apparatus is provided, including a processor and a communication interface. The communication interface is configured to communicate with modules outside the communication apparatus. The processor is configured to execute computer programs or instructions to cause the communication apparatus to perform the method in any of the aspects. The communication apparatus can be the first device in the first aspect, or the second device in the second aspect, or a chip or chip system included in the first device or the second device. The communication apparatus includes modules, units, or means corresponding to the methods, which can be implemented by hardware, software, or by a combination of hardware and software. The hardware or software includes one or more modules or units corresponding to the functions.

[0061] In a sixth aspect, a communication apparatus is provided, which comprises at least one processor; the processor is configured to execute computer programs or instructions, so that the communication apparatus performs the method in any one of the aspects. The communication apparatus can be the first device in the first aspect, or the second device in the second aspect, or an apparatus included in the first device or the second device, such as a chip or a chip system. The communication apparatus comprises modules, units or means corresponding to the method, which can be implemented by hardware, software or by executing corresponding software by hardware. The hardware or software comprises one or more modules or units corresponding to the functions.

[0062] In some possible designs, the communication apparatus comprises a memory, which is configured to store necessary programs and data. The memory can be coupled with the processor, or can be independent of the processor.

[0063] In some possible designs, when the apparatus is a chip system, the apparatus can be composed of a chip, or can comprise a chip and other discrete devices.

[0064] It can be understood that, when the communication apparatus in any one of the fifth aspect to the sixth aspect is a chip, the sending action / function of the communication apparatus can be understood as outputting information, and the receiving action / function of the communication apparatus can be understood as inputting information.

[0065] In a seventh aspect, a computer readable storage medium is provided, which stores computer programs or instructions, when the computer programs or instructions are executed on a communication apparatus, the communication apparatus can perform the method in any one of the aspects.

[0066] In an eighth aspect, a computer program product is provided, which comprises instructions, when the instructions are executed on a communication apparatus, the communication apparatus can perform the method in any one of the aspects.

[0067] In a ninth aspect, a communication system is provided, which comprises the first device (or an apparatus included in the first device, such as a chip or a chip system) in the first aspect and the second device (or an apparatus included in the second device, such as a chip or a chip system) in the second aspect.

[0068] The technical effects brought by any one of the third aspect to the ninth aspect can refer to the technical effects brought by different design manners in the first aspect or the second aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0069] FIG. 1 is a structure diagram of a carrier bandwidth provided by an embodiment of the present application;

[0070] FIG. 2 is a working principle diagram of a WUS according to an embodiment of the present application;

[0071] FIG. 3 is a schematic diagram of frequency domain resources of a WUS according to an embodiment of the present application;

[0072] FIG. 4 is a schematic diagram of an architecture of a communication system according to an embodiment of the present application;

[0073] FIG. 5 is a schematic diagram of an architecture of another communication system according to an embodiment of the present application;

[0074] FIG. 6 is a schematic diagram of an architecture of a communication apparatus according to an embodiment of the present application;

[0075] FIG. 7 is a flow diagram of a signal transmission method according to an embodiment of the present application;

[0076] FIG. 8 is a flow diagram of another signal transmission method according to an embodiment of the present application;

[0077] FIG. 9 is a schematic diagram of frequency domain resources of another WUS according to an embodiment of the present application;

[0078] FIG. 10 is a flow diagram of yet another signal transmission method according to an embodiment of the present application;

[0079] FIG. 11 is a schematic diagram of frequency domain resources of yet another WUS according to an embodiment of the present application;

[0080] FIG. 12 is a flow diagram of yet another signal transmission method according to an embodiment of the present application;

[0081] FIG. 13 is a schematic diagram of a structure of another carrier bandwidth according to an embodiment of the present application;

[0082] FIG. 14 is a schematic diagram of frequency domain resources of yet another WUS according to an embodiment of the present application;

[0083] FIG. 15 is a schematic diagram of frequency domain resources of yet another WUS according to an embodiment of the present application;

[0084] FIG. 16 is a schematic diagram of frequency domain resources of yet another WUS according to an embodiment of the present application;

[0085] FIG. 17 is a flow diagram of yet another signal transmission method according to an embodiment of the present application;

[0086] FIG. 18 is a schematic diagram of an architecture of another communication apparatus according to an embodiment of the present application;

[0087] FIG. 19 is a schematic diagram of an architecture of yet another communication apparatus according to an embodiment of the present application. DETAILED DESCRIPTION

[0088] In the description of the present application, unless otherwise specified, " / " means that the objects before and after the correlation are in an "or" relationship, for example, A / B can represent A or B; "and / or" in the present application is only a description of the correlation of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural.

[0089] In the description of the present application, unless otherwise specified, "multiple" means two or more than two. "At least one of the following" or the like means any combination of the items, including any combination of single item or multiple items. For example, at least one of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.

[0090] In addition, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, "first", "second" and the like are used to distinguish the same items or similar items with basically the same function and role. Those skilled in the art can understand that "first", "second" and the like do not limit the quantity and execution order, and "first", "second" and the like do not necessarily mean different.

[0091] In the embodiments of the present application, the words "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design presented as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of the words "exemplary" or "for example" is intended to present concepts in a concrete manner, which facilitates understanding.

[0092] It can be understood that the "embodiments" mentioned throughout the specification mean that the specific features, structures or characteristics related to the embodiments are included in at least one embodiment of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in any suitable manner in one or more embodiments. It can be understood that in various embodiments of the present application, the size of the sequence number of each process does not mean the execution order, and the execution order of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0093] It is to be understood that the terms "including", "comprising", "having" and "with" are meant to be interpreted open-ended, i.e. in the sense of "including but not limited to", "comprising but not limited to", "having but not limited to" or "with but not limited to", respectively.

[0094] It is to be understood that, in this application, "… when" and "if" refer to the occurrence of an objective condition, not the time, and do not require a judgment action to be implemented, nor does it mean that there are other limitations.

[0095] It is to be understood that some optional features in the embodiments of the present application can be implemented independently in some scenarios, without relying on other features, such as the current scheme based on, to solve the corresponding technical problems, achieve the corresponding effect, or can be combined with other features according to demand in some scenarios. Correspondingly, the devices given in the embodiments of the present application can also realize these features or functions, which will not be described here.

[0096] It can be understood that in this application, "indication" can include direct indication and indirect indication, and can also include explicit indication and implicit indication. When describing "a certain indication information indicates A" or "indication information of A", it can include that the indication information directly indicates A or indirectly indicates A, and does not mean that A must be carried in the indication information. The information indicated by certain information is called to be indicated information, and there are many ways to indicate the to-be-indicated information in the specific implementation process, for example but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or the index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, where the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be only indicated a part, and the other part of the to-be-indicated information is known or agreed in advance. For example, the indication of a specific information can be achieved by means of the arrangement order of each information agreed in advance (for example, the protocol stipulates), thereby reducing the indication overhead to a certain extent. At the same time, the common part of each information can be identified and uniformly indicated, so as to reduce the indication overhead caused by separately indicating the same information. In addition, the specific indication method can also be various existing indication methods, for example but not limited to, the above indication methods and various combinations thereof. As can be seen from the above, for example, when multiple information of the same type needs to be indicated, the indication methods of different information can not be the same. In the specific implementation process, the required indication method can be selected according to the specific needs, and the selected indication method is not limited by the embodiments of the application. In this way, the indication method involved in the embodiments of the application should be understood as covering various methods that can enable the to-be-indicated party to know the to-be-indicated information. The to-be-indicated information can be sent as a whole, or can be divided into multiple sub-information and sent separately, and the sending period or sending occasion of the sub-information can be the same or different. The specific sending method is not limited by the application. The sending period or sending occasion of the sub-information can be pre-defined, for example, pre-defined according to the protocol, or configured by the transmitting end device by sending configuration information to the receiving end device.

[0097] In the present application, "sending" and "receiving" represent the direction of signal transmission. For example, "sending information to XX" can be understood as that the destination of the information is XX, which can include direct sending through the air interface, or indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as that the source of the information is YY, which can include direct receiving from YY through the air interface, or indirect receiving from YY through the air interface by other units or modules. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface. In other words, sending and receiving can be carried out 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 a device through a bus, wire or interface.

[0098] In the present application, the same or similar parts between different embodiments can be mutually referred to, unless otherwise specified. In the present application, the terms and / or descriptions of different embodiments are consistent and can be mutually referred to, unless otherwise specified and logically conflicted. Different embodiments can be combined to form new embodiments according to their inherent logical relationship. The implementation modes of the present application described below do not constitute a limitation on the protection scope of the present application.

[0099] In order to facilitate the understanding of the technical solutions of the embodiments of the present application, first, a brief introduction of the related technologies of the present application is as follows:

[0100] 1. Resource block (RB):

[0101] In the wireless resource, the smallest resource granularity in the time domain can be an orthogonal frequency division multiplexing (OFDM) symbol, which can be referred to as a symbol. In the frequency domain, the smallest resource granularity can be one subcarrier. Taking the 5G / NR standard as an example, one OFDM symbol and one subcarrier can form one resource element (RE), and 12 consecutive subcarriers in the frequency domain can form one RB. One time slot can include multiple consecutive OFDM symbols in the time domain, for example, one time slot includes 12 consecutive OFDM symbols or 14 consecutive OFDM symbols, etc.

[0102] 2. Carrier, frequency point, subcarrier:

[0103] Carrier: refers to a radio signal (or electromagnetic wave) with a specific bandwidth, which is the main body for carrying information. The carrier bandwidth refers to the difference between the highest frequency and the lowest frequency of the carrier.

[0104] Frequency point of a carrier: refers to the center frequency of the carrier.

[0105] Subcarrier: One carrier can be divided into multiple subcarriers. In existing communication systems, five subcarrier spacings are defined, which are 15KHz, 30KHz, 60KHz, 120KHz, and 240KHz. Among them, the subcarrier spacing can be understood as the frequency range of the subcarrier, or the difference between the highest frequency and the lowest frequency of the subcarrier. Different subcarrier spacing sizes can correspond to different slot lengths, such as when the subcarrier spacing is 15KHz, the slot length is 1ms; when the subcarrier spacing is 30KHz, the slot length is 0.5ms; when the subcarrier spacing is 60KHz, the slot length is 0.25ms; when the subcarrier spacing is 120KHz, the slot length is 0.125ms; when the subcarrier spacing is 240KHz, the slot length is 0.0625ms. The above subcarrier spacings are only examples, and the present application does not specifically limit the value of the subcarrier spacing.

[0106] Frequency point of a subcarrier: refers to the center frequency of the subcarrier.

[0107] 3、Carrier bandwidth:

[0108] The carrier bandwidth can also be referred to as the channel bandwidth; or, it can also be referred to as the carrier channel bandwidth. As shown in (a) of FIG. 1, the carrier bandwidth is composed of a transmission bandwidth configuration and a guard band (wherein the guard band can also be referred to as a guard band). Among them, the transmission bandwidth configuration refers to the bandwidth that can be configured for normal use, and the guard band is used to suppress adjacent channel leakage and reduce the error vector magnitude (EVM). The guard band is located at the edge of the channel; that is, the guard band is located at both ends of the transmission bandwidth configuration; that is, a carrier bandwidth is composed of one transmission bandwidth configuration and two guard bands, and the two guard bands are located at both ends of the transmission bandwidth configuration. Further, the sizes of the two guard bands can be the same or different. That is, the guard bands located at both ends of the transmission bandwidth configuration can be symmetrical or asymmetrical, which is not limited by the present application.

[0109] One transmission bandwidth configuration includes N RB RBs. Among them, N 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, 100MHz. The SCS can be 15kHz, 30kHz, 60kHz. At this time, N RB The value of N can be shown in Table 1:

[0110] Table 1

[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 can be shown in Table 2:

[0113] Table 2

[0114] As shown in Table 2, when the carrier bandwidth is 3MHz and the SCS is 15kHz, the guard bandwidth is 142.5kHz; similarly, when the carrier bandwidth is 5MHz and the SCS is 15kHz, the guard bandwidth is 242.5kHz; when the carrier bandwidth is 10MHz and the SCS is 15kHz, the guard bandwidth is 312.5kHz; …; when the carrier bandwidth is 100MHz and the SCS is 60kHz, the guard bandwidth is 1370kHz.

[0115] Multiple band width parts (BWPs) can be configured in one transmission bandwidth configuration. Devices can transmit information in the activated BWP. Different BWPs can partially overlap or not overlap at all. For example, multiple BWPs include BWP#1 and BWP#2. If BWP#1 and BWP#2 do not overlap at all, BWP#1 and BWP#2 can be shown in (b) of FIG. 1.

[0116] 4. Wake up signal (WUS):

[0117] Data streams are usually bursty, which can have data transmission and / or reception in a period of time, but no data transmission and / or reception in the next period of time. Therefore, in order to save power, a terminal device adopts a low power wake up receiver (LP-WUR) to receive a WUS. The WUS is used to wake up a main radio. Since the power consumption of the LP-WUR is much lower than that of the main radio, the power consumption of the terminal device can be greatly saved.

[0118] For example, as shown in FIG. 2, when there is data to be transmitted, the base station can first transmit an LP-WUS to the terminal device, and the terminal device can receive the LP-WUS by using the LP-WUR. After receiving the LP-WUS, the terminal device wakes up the main radio, so that the main radio can receive the data stream.

[0119] The LP-WUR and the main radio are transmitted on the same carrier, and the LP-WUR and other signals (i.e., signals transmitted by the main radio, such as data signals) on the carrier are frequency-division. Therefore, a certain guard band is reserved between the LP-WUR and the other signals to isolate the influence of the other signals on the wake-up signal, so that the WUS can be received by using the LP-WUR.

[0120] It can be understood that, in order to avoid mutual interference or influence between two signals, a certain interval, which can be referred to as a signal interval, needs to be reserved between the frequency domain resources (i.e., frequency domain resources used to carry the two signals) of the two signals when the frequency domain resources of the two signals are configured. Other names can also exist, which are not limited in the present application.

[0121] As shown in FIG. 3, the WUS and other signals are transmitted on a transmission bandwidth configuration; that is, the base station can configure a WUS resource for the WUS from the transmission bandwidth configuration. The WUS resource includes a resource used to carry the WUS and a guard bandwidth located on both sides of the resource. The LP-WUR can use a filter to filter out the WUS for separate processing. The guard bandwidth can be used as a transition band of the filter.

[0122] Based on the above, the WUS occupies the bandwidth of the main radio (i.e., the bandwidth of other signals transmitted by the main radio), uses the frequency domain resource of the main radio, and thus reduces the spectrum utilization rate of the main radio; and the WUS resource further includes a guard band inside, which further reduces the spectrum utilization rate on the carrier bandwidth.

[0123] Therefore, the embodiments of the present application provide a signal transmission method and device. The first device can receive a WUS based on a frequency domain resource of the WUS configured by the second device (i.e., receive the WUS on the frequency domain resource of the WUS). Wherein, part or all of the frequency domain resource of the WUS is located in at least one guard bandwidth in at least one carrier bandwidth (i.e., the at least one guard bandwidth is a guard bandwidth in the at least one carrier bandwidth of the channel); that is, when configuring the frequency domain resource of the WUS, the second device can consider configuring the guard bandwidth on the carrier bandwidth to the WUS, so that the WUS can be transmitted on the guard bandwidth, compared with the scheme of transmitting the WUS only on the transmission bandwidth configured in the carrier bandwidth, the spectrum utilization of the carrier bandwidth can be improved.

[0124] The embodiments of the present application are described in detail below in combination with the drawings of the specification.

[0125] The signal transmission method provided by the embodiments of the present application can be used in any communication system, which can be a third generation partnership project (3GPP) communication system, for example, a long term evolution (LTE) system, or a 5th generation (5G) mobile communication system, a long term evolution (LTE) system and a 5G hybrid networking system, 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), a narrow band Internet of things (NB-IoT), a global system for mobile communications (GSM), an enhanced data rate for GSM evolution (EDGE), a wideband code division multiple access (WCDMA), a code division multiple access (CDMA) 2000, a time division-synchronization code division multiple access (TD-SCDMA), an enhanced mobile broadband (eMBB), an ultra-reliable and low-latency communication (URLLC), an enhanced machine-type communication (eMTC), and various types of future communication systems, or a non-terrestrial network (NTN) system (such as a satellite communication system), a non-3GPP communication system, and the like, without limitation.

[0126] The communication system provided by the embodiments of the present application is described below taking FIG. 4 as an example.

[0127] FIG. 4 is a schematic diagram of a communication system provided by an embodiment of the present application, as shown in FIG. 4, the communication system can include at least one first device and at least one second device.

[0128] The second device is configured to configure a frequency domain resource of the WUS, and transmit the WUS to the first device on the frequency domain resource; and the first device is configured to receive the WUS, and wake up the main transceiver by using the WUS.

[0129] 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.

[0130] Optionally, the network device in the present application is a device for connecting a terminal device to a wireless network, and the network device can be a node in a radio access network, which can also be referred to as a base station, and can also be referred to as a radio access network (RAN) node (or device).

[0131] For example, the network device can include an evolved Node B (eNB or e-NodeB, evolutional Node B) in an LTE system or an LTE-Advanced (LTE-A) system, such as a conventional macro base station eNB and a micro base station eNB in a heterogeneous network scenario. Alternatively, the network device can include a transmission reception point (TRP), a home base station (for example, a home evolved NodeB, or a home Node B, HNB), a baseband unit (BBU), a BBU pool, or a wireless fidelity (WiFi) access point (AP), and the like. Alternatively, the network device can include a base station in a non-terrestrial network (NTN), that is, can be deployed in a high-altitude platform or a satellite, in which the network device can act as a layer 1 (L1) relay, or can act as a base station, or can act as a distributed unit (DU), or can act as an integrated access and backhual (IAB) node. Alternatively, the network device can be a gateway station or a ground station. Alternatively, the network device can be a device implementing a base station function in IoT, such as V2X, D2D, or machine to machine (M2M), or can include a vehicle-mounted device or a wearable device, or can include a network device in a 5G network or a public land mobile network (PLMN) evolved after 5G, and the embodiments of the present application are not limited thereto.

[0132] In some embodiments, the network device can be understood as the network device itself, or a component (for example, a communication apparatus, a communication module, a processor, a circuit, a chip, or a chip system, and the like) in the network device, or can also be a logic module or software capable of implementing all or part of the network device function.

[0133] In some embodiments, the network device can be further provided with a communication module, a circuit, or a chip for performing a corresponding communication function. The network device can be further configured with program instructions for performing a corresponding communication function and corresponding program instructions. The network device in the present application can also be a logic node, a logic module, or software capable of implementing all or part of the network device function.

[0134] In some possible scenarios, the network device in the embodiments of the present application can also be a module or unit capable of implementing part of the functions of a base station, for example, the network device can include a centralized unit (CU) and a distributed unit (DU). The RAN device including the CU node and the DU node splits the protocol layers of the base station (gNB) in the NR system, the functions of part of the protocol layers are placed in the CU for centralized control, and the functions of the remaining part or all of the protocol layers are distributed in the DU and controlled by the CU. Further, the CU can also 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 the control plane function, mainly including the radio resource control (RRC) and the packet data convergence protocol (PDCP) corresponding to the control plane (PDCP-C). The PDCP-C is mainly responsible for the encryption and decryption of the control plane data, the integrity protection, the data transmission and the like. The CU-UP is responsible for the user plane function, mainly including the service data adaptation protocol (SDAP) and the PDCP corresponding to the user plane (PDCP-U). The SDAP is mainly responsible for processing the data of the core network and mapping the flow to the bearer. The PDCP-U is mainly responsible for the encryption and decryption of the data plane, the integrity protection, the header compression, the sequence number maintenance, the data transmission and the like. The CU-CP and the CU-UP are connected through an E1 interface. The CU-CP represents the gNB to connect with the core network through an NG interface, and to connect with the DU through an F1 interface of the control plane (namely, F1-C). The CU-UP is connected with the DU through an F1 interface of the user plane (namely, F1-U). Of course, there is also a possible implementation that the PDCP-C is also in the CU-UP.

[0135] It can be understood that the CU (including CU-CP or CU-UP) or DU can also have different names in different systems, but those skilled in the art can understand its meaning. For example, in an open radio access network (O-RAN) system, the CU can also be referred to as an open centralized unit (O-CU), the DU can also be referred to as an open distributed unit (O-DU), the CU-CP can also be referred to as an open centralized unit-control plane (O-CU-CP) O-CU-CP, and the CU-UP can also be referred to as an open centralized unit user plane (O-CU-UP). For the convenience of description, the CU, CU-CP, CU-UP and DU are taken as examples for description in the present application. The network device can also include an active antenna unit (AAU). The CU implements part of the functions of the gNB, and the DU implements part of the functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implements the functions of the RRC layer. The DU is responsible for processing physical layer protocols and real-time services, and implements the functions of the radio link control (RLC) layer, the media access control (MAC) layer and the physical (PHY) layer. 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. Among them, the CU-CP is responsible for the control plane function, and the CU-UP is responsible for the user plane function.

[0136] Optionally, the base station in the embodiments of the present application can include various forms of base stations, such as macro base stations, micro base stations (also known as small stations), relay stations, access points, home base stations, TRPs, transmission points (TPs), mobile switching centers, etc., and the embodiments of the present application do not make specific limitations thereto.

[0137] Optionally, the terminal device in the embodiments of the present application can be a user side device for implementing a wireless communication function, such as a terminal or a chip used in a terminal, etc. Wherein, the terminal can be a user equipment (UE) in a 5G network or a PLMN evolved after 5G, an access terminal, a satellite terminal, a terminal unit, a terminal station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a terminal agent or a terminal device, etc.The terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a smart phone (such as a mobile phone), a personal digital assistant (PDA), a handheld device having wireless communication function, a computing device, or other processing device connected to a wireless modem, a vehicle-mounted device (such as a car, a bicycle, an electric vehicle, an airplane, a ship, a train, a high-speed rail, etc.), or a wearable device (such as a smart watch, a smart bracelet, a pedometer, smart glasses, etc.), a smart robot, a mechanical arm, a plant device, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in telemedicine or telehealth services, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home (for example, a refrigerator, a television, an air conditioner, an electricity meter, etc.), a wireless data card, a tablet computer, a notebook computer, a palm computer, a mobile internet device (MID), a wireless modem, a handset, a laptop computer, a machine type communication (MTC) terminal, a smart point of sale (POS) machine, a customer-premises equipment (CPE), a light UE, a reduced capability UE (REDCAP UE), a flight device (for example, a smart robot, a hot air balloon, a drone, an airplane), etc.Alternatively, a terminal can be a terminal (or a device assuming a terminal function) having a communication function in an internet of things (IoT), for example, a terminal (i.e., a vehicle device such as a whole vehicle device, a vehicle-mounted module, a vehicle-mounted chip, an on board unit (OBU), or a telematics box (T-BOX), etc.) in a vehicle to everything (V2X), a terminal in device-to-device (D2D) system communication, or a terminal in machine to machine (M2M) communication, etc. A terminal can be mobile or fixed.

[0138] In some embodiments, a terminal device can also be a device or module having a corresponding communication function accessing the above-mentioned illustrated communication system. A communication module or circuit or chip for performing a corresponding communication function is usually arranged in a terminal device, or a chip such as a modem chip (also known as a baseband chip) or a system on chip (SoC) chip or a system in a package (SIP) chip containing a modem module is arranged in a terminal device, or a program instruction for performing a corresponding communication function is arranged in a terminal device.

[0139] In some embodiments, a terminal device can also be a device or module having a corresponding communication function accessing the above-mentioned illustrated communication system. A communication module or circuit or chip for performing a corresponding communication function is usually arranged in a terminal device, or a program instruction for performing a corresponding communication function is arranged in a terminal device.

[0140] Optionally, the roles between a network device and a terminal device can be relative, for example, terminal device #9 and terminal device #10 in FIG. 5. Since terminal device #10 needs to access network device #1 through terminal device #9, terminal device #9 can be configured as a network device with respect to terminal device #10. With respect to network device #1, terminal device #9 is a terminal device, that is, network device #1 and terminal device #9 communicate through a wireless air interface protocol. Optionally, network device #1 and terminal device #9 can also communicate through an interface protocol between network devices, and with respect to network device #1, terminal device #9 also acts as a network device.

[0141] Optionally, the network device and the terminal device, the network device and the network device, or the terminal device and the terminal device can communicate through a licensed spectrum, or can communicate through an unlicensed spectrum, or can communicate through both the licensed spectrum and the unlicensed spectrum. Optionally, the network device and the terminal device, the network device and the network device, or the terminal device and the terminal device can communicate through a spectrum below 6 gigahertz (GHz), or can communicate through a spectrum above 6 GHz, or can communicate through both the spectrum below 6 GHz and the spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used by wireless communication.

[0142] In the embodiments of the present application, the functions of the network device can also be performed by a module (such as a chip) in the network device, or can also be performed by a control subsystem containing the functions of the network device. The control subsystem containing the functions of the network device can be a control center in the above-mentioned application scenarios such as smart grid, industrial control, intelligent transportation, and smart city. The functions of the terminal device can also be performed by a module (such as a chip, a modem, an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or software (such as program code in a memory)) in the terminal device, or can also be performed by a device containing the functions of the terminal device, without limitation.

[0143] In specific implementation, each of the communication devices (such as the first device and the second device) shown in FIG. 4 can adopt the constituent structure shown in FIG. 6, or can include the components shown in FIG. 6. FIG. 6 is a constituent diagram of a communication apparatus 600 provided by an embodiment of the present application. The communication apparatus 600 can be the first device or a chip or a system on chip in the first device, or can be the second device or a chip or a system on chip in the second device. As shown in FIG. 6, the communication apparatus 600 includes a processor 601, a communication interface 602, and a communication line 603.

[0144] Further, the communication apparatus 600 can further include a memory 604. The processor 601, the memory 604, and the communication interface 602 can be connected through the communication line 603.

[0145] The processor 601 can be a central processing unit (CPU), a general-purpose processor, 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 processing devices, such as a circuit, a device, or a software module, without limitation.

[0146] The communication interface 602 is configured to communicate with other devices or other communication networks. The other communication networks can be an Ethernet, a radio access network (RAN), a wireless local area network (WLAN), or the like. The communication interface 602 can be a module, a circuit, a transceiver, or any device capable of communication.

[0147] The communication line 603 is configured to connect different components in the communication device 600, so that the different components can communicate. The communication line 603 can be a peripheral component interconnect (PCI) bus, an extended industry standard architecture (EISA) bus, or the like. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is used in FIG. 6, but it does not mean that there is only one bus or only one type of bus.

[0148] The memory 604 can be a device with a storage function, configured to store instructions and / or data. The instructions can be a computer program.

[0149] The memory 604 may, for example, be read-only memory (ROM) or other type of static storage device that can store static information and / or instructions, random access memory (RAM), or other type of dynamic storage device that can store information and / or instructions, electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), or other optical disk storage, optical storage including compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), Blu-ray disc, and the like, magnetic storage including disk storage, magnetic cassettes, and the like, or any other medium which can be used to store information and / or instructions that can be accessed by the communication device 600.

[0150] It should be noted that the memory 604 can be independent of the processor 601, or can be integrated with the processor 601. The memory 604 can be used to store instructions or program codes or some data, etc. The memory 604 can be located in the communication device 600, or can be located outside the communication device 600, without limitation. The processor 601 is used to execute the instructions stored in the memory 604, so as to implement the signal transmission method provided by the embodiments described below.

[0151] In an example, the processor 601 can include one or more CPUs, such as CPU0 and CPU1 in FIG. 6.

[0152] As an optional implementation, the communication device 600 includes multiple processors, for example, in addition to the processor 601 in FIG. 6, the communication device 600 can further include a processor 607.

[0153] As an optional implementation, the communication device 600 further includes an output device 605 and an input device 606. For example, 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, a mouse, a microphone, a joystick, a touch screen device, a sensor device, or the like. The output device 605 is a display screen, a speaker, or the like.

[0154] It should be noted that the communication apparatus 600 can be a desktop computer, a laptop computer, a network server, a mobile phone, a tablet computer, a wireless terminal, an embedded device, a chip system, or a device having a similar structure as shown in FIG. 6. In addition, the constituent structure shown in FIG. 6 does not constitute a limitation on the communication apparatus, and the communication apparatus can include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0155] In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.

[0156] In addition, the actions, terms, and the like involved among the embodiments of the present application can be mutually referenced and are not limited. The message name or parameter name in the message exchanged between the devices in the embodiments of the present application is only an example, and other names can also be used in the specific implementation, which is not limited.

[0157] The signal transmission method provided by the embodiments of the present application will be described below with reference to the accompanying drawings. It can be understood that, in the embodiments of the present application, the first device or the second device can perform part or all of the steps in the embodiments of the present application, and these steps or operations are only examples, and the embodiments of the present application can also perform other operations or variations of various operations. In addition, each step can be performed in a different order from that presented in the embodiments of the present application, and it is possible that not all operations in the embodiments of the present application are performed.

[0158] Referring to FIG. 7, it is a flowchart of a signal transmission method provided by the present application. The signal transmission method includes the following steps S701-S702:

[0159] S701, the second device sends indication information to the first device; correspondingly, the first device receives the indication information from the second device.

[0160] The indication information indicates the frequency domain resource of the WUS, and part or all of the frequency domain resource of the WUS is located in at least one guard bandwidth, and the at least one guard bandwidth is a guard bandwidth in at least one carrier bandwidth of a channel.

[0161] Illustratively, part or all of the frequency domain resource of the WUS is located in at least one guard bandwidth, which can be understood as: part of the frequency domain resource of the WUS is located in one guard bandwidth, or all of the frequency domain resource of the WUS is located in one guard bandwidth, or part of the frequency domain resource of the WUS is located in multiple guard bandwidths, or all of the frequency domain resource of the WUS is located in multiple guard bandwidths.

[0162] For example, based on the foregoing related art, the carrier bandwidth is composed of the transmission bandwidth configuration and the guard bandwidth; therefore, the at least one guard bandwidth is the guard bandwidth in the at least one carrier bandwidth of the channel, which can be understood as: the at least one guard bandwidth of the frequency domain resource for carrying the WUS refers to the guard bandwidth for constituting the carrier bandwidth; that is, the frequency domain resource for carrying the WUS is located in the at least one carrier bandwidth.

[0163] Specifically, the implementation of the guard bandwidth, the transmission bandwidth configuration, and the carrier bandwidth can refer to the related description of the foregoing FIG. 1 (i.e., (a) in FIG. 1 and / or (b) in FIG. 1), which will not be repeated here.

[0164] For example, when the first device is a terminal device and the second device is a network device, the frequency domain resource of the WUS is a downlink resource; when the first device is a network device and the second device is a terminal device, the frequency domain resource of the WUS is an uplink resource.

[0165] Specifically, when the frequency domain resource of the WUS is a downlink resource, the indication information can be carried in any one of a downlink control information (DCI), RRC signaling, or medium access control-control element (MAC-CE) signaling.

[0166] When the frequency domain resource of the WUS is an uplink resource, the indication information can be carried in any one of an uplink control information (UCI), RRC signaling, or MAC-CE signaling.

[0167] S702, the second device sends the WUS to the first device; correspondingly, the first device receives the WUS on the frequency domain resource of the WUS.

[0168] For example, after the second device indicates the frequency domain resource of the WUS to the first device (i.e., the second device indicates the frequency domain resource of the WUS to the first device through the indication information), the second device can send the WUS to the first device on the frequency domain resource of the WUS, so that the first device can receive the WUS on the frequency domain resource of the WUS.

[0169] For example, the first device can receive the WUS through a 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 that can receive the WUS, which is not limited in the present application.

[0170] Optionally, after step S702, the signal indication method can further include step S703 as shown in FIG. 8.

[0171] S703, the first device wakes up the main transceiver of the first device based on the WUS.

[0172] For example, the first device can include a receiver (e.g., LP-WUR) for receiving the WUS and a main transceiver; wherein the main transceiver is used to receive signals other than the WUS. Further, before the first device receives the WUS, the main transceiver is in a dormant state; after the first device receives the WUS, the first device can wake up the main transceiver based on the WUS, so that the main transceiver can transmit and receive signals.

[0173] Optionally, the frequency of the carrier bandwidth in which the signal transmitted and received by the main transceiver is located is higher than the frequency of the carrier bandwidth in which the WUS is located.

[0174] For example, the receiving performance of the LP-WUR is much lower than the receiving performance (e.g., anti-interference capability) of the main transceiver, so when the signal transmitted and received by the main transceiver and the WUS signal are located 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 range of the WUS is lower than the coverage range of the signal transmitted and received by the main transceiver, resulting in the phenomenon that the main transceiver can work normally while the LP-WUR cannot work in some scenarios, so that the main transceiver cannot be woken up by the WUS.

[0175] Therefore, in this application, the main transceiver works in a high-frequency carrier and the LP-WUR works in a low-frequency carrier (i.e., the frequency of the carrier bandwidth in which the signal transmitted and received by the main transceiver is located is higher than the frequency of the carrier bandwidth in which the WUS is located); generally, the lower the frequency, the smaller the road loss; thereby reducing the road loss of the WUS, improving the coverage range of the WUS, and making the coverage range of the WUS and the coverage range of the signal transmitted and received by the main transceiver as consistent as possible, so that the first device can wake up the main transceiver by the WUS.

[0176] The signal transmission method provided by the embodiments of the present application can be used to receive the WUS based on the frequency domain resource of the WUS configured by the second device (i.e., receiving the WUS on the frequency domain resource of the WUS). Wherein, part or all of the frequency domain resources of the WUS are located in at least one guard bandwidth within at least one carrier bandwidth (i.e., the at least one guard bandwidth is a guard bandwidth in the at least one carrier bandwidth of the channel); that is, when configuring the frequency domain resource of the WUS, the second device can consider configuring the guard bandwidth on the carrier bandwidth to the WUS, so that the WUS can be transmitted on the guard bandwidth, which can improve the spectrum utilization of the carrier bandwidth compared with the scheme of transmitting the WUS only on the transmission bandwidth within the carrier bandwidth.

[0177] The above is the overall description of the signal transmission method provided by the present solution. The "frequency domain resource of WUS" involved in the above embodiments will be described in detail below. For example, based on different implementations of at least one guard bandwidth, the frequency domain resource of WUS can be implemented based on the following two cases:

[0178] Case one: at least one guard bandwidth includes one guard bandwidth.

[0179] For convenience of description, the one guard bandwidth is referred to as the first guard bandwidth below, that is, the at least one guard bandwidth includes the first guard bandwidth; the unified description here will not be repeated here.

[0180] At this time, part or all of the frequency domain resources of WUS are located within the first guard bandwidth; that is, part or all of the frequency domain resources of WUS are located within the at least one guard bandwidth, including: part or all of the frequency domain resources of WUS are located within the first guard bandwidth.

[0181] As an example, part of the frequency domain resources of WUS are located within the first guard bandwidth, and the remaining resources of the frequency domain resources of WUS, except for the part of the resources, are located within the first transmission bandwidth configuration; wherein the first transmission bandwidth configuration is located within the same carrier bandwidth as the first guard bandwidth.

[0182] For example, based on the foregoing related art, it is known that one carrier bandwidth is composed of two guard bandwidths and one transmission bandwidth configuration, and the two guard bandwidths are respectively located at the left and right ends of the transmission bandwidth configuration; taking the two guard bandwidths as guard bandwidth #1 and guard bandwidth #2 as an example, if the first guard bandwidth is guard bandwidth #1, the position of the frequency domain resource of WUS in the carrier bandwidth can be as shown in (a) of FIG. 9, that is, part of the frequency domain resources of WUS are located in guard bandwidth #1, and the remaining resources of the frequency domain resources of WUS, except for the part of the resources, are located in the transmission bandwidth configuration.

[0183] If the first guard bandwidth is guard bandwidth #2, the position of the frequency domain resource of WUS in the carrier bandwidth can be as shown in (b) of FIG. 9, that is, part of the frequency domain resources of WUS are located in guard bandwidth #2, and the remaining resources of the frequency domain resources of WUS, except for the part of the resources, are located in the transmission bandwidth configuration.

[0184] Optionally, in this example, since part of the frequency domain resources of the WUS (i.e., the remaining resources described above) are located in the first transmission bandwidth configuration, that is, the WUS needs to be transmitted in the first transmission bandwidth configuration; therefore, the second device needs to consider the carrier frequency (or frequency band) applicable to the first device when configuring the frequency domain resources of the WUS; and then select a carrier frequency from the carrier frequencies applicable to the first device, and configure the frequency domain resources of the WUS in the carrier bandwidth corresponding to the carrier frequency. At this time, the carrier bandwidth corresponding to the carrier frequency includes the first guard bandwidth and the first transmission bandwidth configuration. Wherein, 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 in the carrier bandwidth. That is, the frequency of the carrier bandwidth is the same as the frequency of the transmission bandwidth configuration in the carrier bandwidth.

[0185] Optionally, in this example, part or all of the resources in the first transmission bandwidth configuration other than the remaining resources of the WUS can be configured to signals other than the WUS.

[0186] For example, when part of the resources in the first transmission bandwidth configuration other than the remaining resources of the WUS are configured to signals other than the WUS, the interval between part of the resources in the first transmission bandwidth configuration other than the remaining resources of the WUS and the remaining resources of the WUS is greater than or equal to the signal interval.

[0187] For example, the implementation of the signal interval can refer to the description in the foregoing related technologies, which will not be described here.

[0188] Optionally, the frequency domain resources of the WUS can be autonomously configured by the second device according to the carrier frequency applicable to the first device; or, the frequency domain resources of the WUS can also be determined by the second device according to the capability of the first device.

[0189] For example, when the frequency domain resources of the WUS are determined by the second device according to the capability of the first device, the capability of the first device can be indicated by the 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 the WUS based on the first capability information.

[0190] Specifically, before step S701, the signal transmission method can further include step S700A as shown in FIG. 10:

[0191] 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. Wherein, the first capability information indicates the capability of the first device to support receiving signals on the guard bandwidth and the transmission bandwidth configuration at the same time, and the transmission bandwidth and the transmission bandwidth configuration are located in the same carrier bandwidth.

[0192] For example, the first capability information indicates that the first device supports the capability of simultaneously receiving signals on the guard bandwidth and the transmission bandwidth configuration, which can be understood as: the first capability information indicates that the first device supports the capability of simultaneously receiving signals on the guard bandwidth and the transmission bandwidth configuration within the same carrier bandwidth.

[0193] In a possible implementation, the first capability information indicates whether the first device supports the capability of simultaneously receiving signals on the guard bandwidth and the transmission bandwidth configuration.

[0194] That is, the first capability information indicates that the first device supports the capability of simultaneously receiving signals on the guard bandwidth and the transmission bandwidth configuration, which includes: the first capability information indicates whether the first device supports the capability of simultaneously receiving signals on the guard bandwidth and the transmission bandwidth configuration.

[0195] For example, the first capability information indicates whether to indicate the capability of simultaneously receiving signals on the guard bandwidth and the transmission bandwidth configuration, which can be understood as: the first capability information indicates whether the first device supports the capability of simultaneously receiving signals on the guard bandwidth and the transmission bandwidth configuration within the same carrier bandwidth.

[0196] Specifically, the first capability information can be represented by 1 bit. When the 1 bit is 1, it indicates that the first capability information indicates that the first device supports the capability of simultaneously receiving signals on the guard bandwidth and the transmission bandwidth configuration, or in other words, the first capability information indicates that the first device supports the capability of simultaneously receiving signals on the guard bandwidth and the transmission bandwidth configuration within the same carrier bandwidth. When the 1 bit is 0, it indicates that the first capability information indicates that the first device does not support the capability of simultaneously receiving signals on the guard bandwidth and the transmission bandwidth configuration, or in other words, the first capability information indicates that the first device does not support the capability of simultaneously receiving signals on the guard bandwidth and the transmission bandwidth configuration within the same carrier bandwidth.

[0197] Alternatively, when the 1 bit is 0, it indicates that the first capability information indicates that the first device supports the capability of simultaneously receiving signals on the guard bandwidth and the transmission bandwidth configuration, or in other words, the first capability information indicates that the first device supports the capability of simultaneously receiving signals on the guard bandwidth and the transmission bandwidth configuration within the same carrier bandwidth. When the 1 bit is 1, it indicates that the first capability information indicates that the first device does not support the capability of simultaneously receiving signals on the guard bandwidth and the transmission bandwidth configuration, or in other words, the first capability information indicates that the first device does not support the capability of simultaneously receiving signals on the guard bandwidth and the transmission bandwidth configuration within the same carrier bandwidth.

[0198] In another possible implementation, the first capability information indicates the size of the guard bandwidth and the size of the transmission bandwidth configuration supported by the first device. The guard bandwidth and the transmission bandwidth configuration are used for the first device to simultaneously receive signals.

[0199] That is, the first capability information indicates the size of the guard bandwidth and the size of the transmission bandwidth configuration supported by the first device, including: the first capability information indicates the size of the guard bandwidth and the size of the transmission bandwidth configuration when the first device supports receiving signals simultaneously on the guard bandwidth and the transmission bandwidth configuration located in the same carrier bandwidth. In other words, the first capability information indicates that the first device supports receiving signals simultaneously on a guard bandwidth of how large and a transmission bandwidth configuration of how large.

[0200] For example, the size of the guard bandwidth can be N subcarriers. Specifically, N can be any value greater than or equal to 0. For example, N can be any one of 0, 1, 2, 3, 4, 6, 7, 8, and 9.

[0201] Similarly, the size of the transmission bandwidth configuration can be M subcarriers. Specifically, M can be any value greater than or equal to 0. For example, M can be any one of 0, 1, 2, 3, 4, 6, 7, 8, and 9. For example, the value of M can be the same as or different from the value of N, which is not limited by the present application.

[0202] Specifically, when N is 0 and / or M is 0, it means that the first device does not support receiving signals simultaneously on the guard bandwidth and the transmission bandwidth configuration in the same carrier bandwidth.

[0203] It can be understood that one subcarrier is 1 kHz, so the size of the guard bandwidth can be N subcarriers, or alternatively, the size of the guard bandwidth can be N kHz. Similarly, the size of the transmission bandwidth configuration can be M subcarriers, or alternatively, the size of the transmission bandwidth configuration can be M kHz.

[0204] For example, based on the implementation of the size of the guard bandwidth and the size of the transmission bandwidth configuration described above, the first capability information indicating the size of the guard 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.

[0205] Specifically, the first indication information can include the specific values of N and M to directly indicate the value of N and the value of M. Alternatively, the first indication information can indicate a parameter corresponding to the values of N and M, thereby implicitly indicating the value of N and the value of M corresponding to the parameter. Alternatively, the first indication information can indicate the value of N and the value of M in any other possible way, which is not limited by the embodiments of the present application.

[0206] For example, the parameter corresponding to the values of N and M can include the following two implementation modes:

[0207] In an implementation form, the parameter corresponding to the value of N and M can be a first index. The value of N is a size of a guard bandwidth corresponding to the first index in a first correspondence relationship, and the value of M is a size of a guard bandwidth configuration corresponding to the first index in the first correspondence relationship. The first correspondence relationship is a correspondence relationship among an index, a size of a guard bandwidth, and a size of a guard bandwidth configuration.

[0208] For example, the first correspondence relationship can be embodied in the form of a table. In this case, the first correspondence relationship can include the content shown in Table 3 as follows:

[0209] Table 3

[0210] As shown in Table 3, when the first index is 0, the value of N is 0 and the value of M is 0; when the first index is 1, the value of N is 1 and the value of M is 1; and so on. When the first index is 5, the value of N is 5 and the value of M is 2.

[0211] Alternatively, the first correspondence relationship can be embodied in the form of a set. In this case, the first correspondence relationship can include {0; 0; 0}, {1; 1; 1}, {2; 2; 1}, {3; 3; 1}, {4; 4; 2}, {5; 5; 2}, and so on. The first list in the set represents an index, the second list represents a size of a guard bandwidth, and the third list represents a size of a guard bandwidth configuration. That is, when the first index is 0, the value of N is 0 and the value of M is 0; when the first index is 1, the value of N is 1 and the value of M is 1; and so on. When the first index is 5, the value of N is 5 and the value of M is 2.

[0212] It should be understood that the above only exemplarily lists possible implementation forms of the first correspondence relationship, and does not mean that the first correspondence relationship only includes the implementation in the above examples. In fact, the first correspondence relationship can also include other implementation forms other than the above implementations, such as the first correspondence relationship can be implemented in the form of grouping, and / or the values of the parameters in the first correspondence relationship can include other values other than the above implementations, which are not limited in the present application.

[0213] In an implementation form, the parameter corresponding to the value of N and M can be a first index. The value of N is a size of a guard bandwidth corresponding to the first index in a first correspondence relationship, and the value of M is a size of a guard bandwidth configuration corresponding to the first index in the first correspondence relationship. The first correspondence relationship is a correspondence relationship among an index, a size of a guard bandwidth, and a size of a guard bandwidth configuration.

[0214] For example, the first ratio can be N / M; or the first ratio can be M / N. For example, taking the value of N as 5 and the value of M as 2 as an example, the first ratio can be 2 / 5, or the first ratio can be 5 / 2.

[0215] It should be understood that the above two implementations (i.e., implementation one and implementation two) only exemplarily introduce part of the implementation of the parameter corresponding to the value of N and M, and do not represent that the parameter corresponding to the value of N and M only includes the implementation in the above examples; the parameter corresponding to the value of N and M can also include other forms other than the above examples, which is not limited by the present application.

[0216] Based on this example, part of the frequency domain resources of the WUS can be located within the guard bandwidth, and further, another part of the frequency domain resources of the WUS can be located in a transmission bandwidth configuration within the same carrier bandwidth as the guard bandwidth, so that the WUS can be transmitted within the transmission bandwidth configuration and the guard bandwidth, which can improve the spectrum utilization of the carrier bandwidth compared to the scheme of transmitting the WUS only on the transmission bandwidth configuration within the carrier bandwidth.

[0217] As another example, all of the frequency domain resources of the WUS are located within the first guard bandwidth.

[0218] Exemplarily, based on the foregoing related art, one carrier bandwidth is composed of two guard bandwidths and one transmission bandwidth configuration, and the two guard bandwidths are located at the left and right ends of the transmission bandwidth configuration; taking the two guard bandwidths as guard bandwidth #1 and guard bandwidth #2 as an example, if the first guard bandwidth is the guard bandwidth #1, the position of the frequency domain resources of the WUS in the carrier bandwidth can be as shown in (a) of FIG. 11, that is, all of the frequency domain resources of the WUS are located in the guard bandwidth #1. If the first guard bandwidth is the guard bandwidth #2, the position of the frequency domain resources of the WUS in the carrier bandwidth can be as shown in (b) of FIG. 11, that is, all of the frequency domain resources of the WUS are located in the guard bandwidth #2.

[0219] Optionally, under this example, since all of the frequency domain resources of the WUS are located within the first guard bandwidth, that is, the WUS does not need to be transmitted within the transmission bandwidth configuration. It can be understood that in the current transmission of the WUS, the signal is transmitted within the transmission bandwidth configuration, and the transmission bandwidth configuration within one carrier bandwidth needs to be configured to the device supporting the frequency of the carrier bandwidth. Since the signal is not transmitted within the guard bandwidth, the current device does not have a limitation on the applicable device of the guard bandwidth, and therefore, the guard bandwidth can be shared by any device. That is, even if the first device is not applicable to the carrier frequency of the first transmission bandwidth configuration (or the frequency of the carrier bandwidth where the first transmission bandwidth configuration is located), the first device can still receive the signal within the first guard bandwidth, that is, the frequency domain resources of the WUS can be located within the first guard bandwidth.

[0220] Optionally, under this example, part or all of the resources in the first transmission bandwidth configuration can be configured to other signals in addition to the WUS.

[0221] For example, the interval between the part of the first transmission bandwidth configuration configured for the signal other than the WUS and the remaining resource of the WUS is greater than or equal to the signal interval.

[0222] For example, the implementation of the signal interval can refer to the description in the foregoing related art, which is not described here again.

[0223] Optionally, the first guard bandwidth can be located in the uplink carrier bandwidth; that is, the carrier bandwidth in which the first guard bandwidth is located is the uplink carrier bandwidth. Alternatively, the first guard bandwidth can be located in the downlink carrier bandwidth; that is, the carrier bandwidth in which the first guard bandwidth is located is the downlink carrier bandwidth.

[0224] For example, when the first device is a terminal device and the second device is a network device, the frequency domain resource of the WUS is a downlink resource; generally, the frequency domain resource of the WUS is located in the downlink carrier bandwidth; in addition, if the first device and the second device support a full-duplex communication mode, that is, the first device supports simultaneous transmission and reception of signals, similarly, the second device also supports simultaneous transmission and reception of signals. That is, the frequency domain resource of the WUS can also be located in the uplink carrier bandwidth, so that the second device can also send the WUS (that is, send the WUS on the frequency domain resource of the WUS) in the uplink carrier bandwidth when receiving the uplink signal in the uplink carrier bandwidth.

[0225] For example, when the first device is a terminal device and the second device is a network device, the frequency domain resource of the WUS is a downlink resource; generally, the frequency domain resource of the WUS is located in the downlink carrier bandwidth; in addition, if the first device and the second device support a full-duplex communication mode, that is, the first device supports simultaneous transmission and reception of signals, similarly, the second device also supports simultaneous transmission and reception of signals. That is, the frequency domain resource of the WUS can also be located in the uplink carrier bandwidth, so that the second device can also send the WUS (that is, send the WUS on the frequency domain resource of the WUS) in the uplink carrier bandwidth when receiving the uplink signal in the uplink carrier bandwidth.

[0226] Optionally, the frequency domain resource of the WUS can be autonomously configured by the second device according to the carrier frequency applicable to the first device; or, the frequency domain resource of the WUS can be determined by the second device according to the capability of the first device.

[0227] For example, when the frequency domain resource of the WUS is determined by the second device according to the capability of the first device, the capability of the first device can be indicated by the 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 resource of the WUS based on the second capability information.

[0228] Specifically, before step S701, the signal transmission method can further include step S700B as shown in FIG. 12:

[0229] 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 the capability of the first device to receive signals on the guard bandwidth.

[0230] In a possible implementation, the second capability information indicates whether the first device supports receiving signals on the guard bandwidth. That is, the second capability information indicating the capability of the first device to receive signals on the guard bandwidth includes: the second capability information indicating whether the first device supports receiving signals on the guard bandwidth.

[0231] Specifically, the second capability information can be represented by 1 bit. When the 1 bit is 1, it indicates that the first capability information indicates that the first device supports receiving signals on the guard bandwidth; when the 1 bit is 0, it indicates that the second capability information indicates that the first device does not support receiving signals on the guard bandwidth. Alternatively, when the 1 bit is 0, it indicates that the first capability information indicates that the first device supports receiving signals on the guard bandwidth; when the 1 bit is 1, it indicates that the first capability information indicates that the first device does not support receiving signals on the guard bandwidth.

[0232] For example, when the first capability information indicates that the first device supports receiving signals on both the guard bandwidth and the transmission bandwidth configuration, part of the frequency domain resources of the WUS configured by the second device can be located within the first guard bandwidth, and another part of the frequency domain 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 on both the guard bandwidth and the transmission bandwidth configuration, all of the frequency domain resources of the WUS configured by the second device can be located within the first guard bandwidth.

[0233] Optionally, in the possible implementation, the guard bandwidth indicated in the second capability information can be a guard bandwidth in an uplink carrier bandwidth, or can also be a guard bandwidth in a downlink carrier bandwidth.

[0234] For example, when the guard bandwidth indicated in the second capability information is a guard bandwidth in an uplink carrier bandwidth, the second capability information indicating whether the first device supports receiving signals on the guard bandwidth can be understood as: the second capability information indicating whether the first device supports receiving signals on the guard bandwidth in the uplink carrier bandwidth. Similarly, when the guard bandwidth indicated in the second capability information is a guard bandwidth in a downlink carrier bandwidth, the second capability information indicating whether the first device supports receiving signals on the guard bandwidth can be understood as: the second capability information indicating whether the first device supports receiving signals on the guard bandwidth in the downlink carrier bandwidth.

[0235] Alternatively, the second capability information indicates whether the first device supports receiving signals on the guard bandwidth, which can also be understood as: the second capability information indicates whether the first device supports receiving signals on the guard bandwidth in the uplink carrier bandwidth, and the second capability information further indicates whether the first device supports receiving signals on the guard bandwidth in the downlink carrier bandwidth.

[0236] In another possible implementation, the second capability information indicates a size of the guard bandwidth supported by the first device, wherein the guard bandwidth is used by the first device to receive signals.

[0237] That is, the second capability information indicates the size of the guard bandwidth supported by the first device, which can 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; or the first device supports receiving signals on a guard bandwidth of how many subcarriers.

[0238] For example, the size of the guard bandwidth can be N subcarriers. Specifically, N can be any value greater than or equal to 0. For example, N can be any one of 0, 1, 2, 3, 4, 6, 7, 8, and 9. When N is 0, it means that the first device does not support receiving signals on the guard bandwidth.

[0239] It can be understood that one subcarrier is 1 kHz, so the size of the guard bandwidth can be N subcarriers, or alternatively, the size of the guard bandwidth can be N kHz.

[0240] For example, based on the implementation of the size of the guard bandwidth described above, the first capability information indicating the size of the guard 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 corresponding to the value of N, thereby implicitly indicating the value of N corresponding to the parameter. Alternatively, the first indication information can indicate the value of N in any other possible way, which is not limited by the embodiments of the present application.

[0241] For example, the parameter corresponding to the value of N can be a second index. Specifically, the value of N is the size of the guard bandwidth corresponding to the second index in the second correspondence relationship, and the second correspondence relationship is the correspondence relationship between the index and the size of the guard bandwidth. Specifically, the second correspondence relationship can be embodied in the form of a table, and the second correspondence relationship can include the content shown in Table 4 as follows:

[0242] Table 4

[0243] 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, when the second index is 5, the corresponding value of N is 5. Alternatively, the second correspondence relationship can be embodied in a set manner, and the second correspondence relationship can include {0; 0}, {1; 1}, {2; 2}, {3; 3}, {4; 4}, {5; 5}, and the like. In the set, the first list indicates the index, and the second list indicates the size of the guard 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, when the second index is 5, the corresponding value of N is 5.

[0244] It should be understood that the above merely exemplarily lists possible implementation forms of the second correspondence relationship, and does not represent that the second correspondence relationship only includes the implementation in the above examples; in fact, the second correspondence relationship can also include other implementation forms in addition to the above implementations, such as the second correspondence relationship can be implemented in a grouping manner, and / or the values of the parameters in the second correspondence relationship can include other values in addition to the above implementations, which are not limited in the present application.

[0245] Optionally, in the possible implementation manner, the guard bandwidth indicated in the second capability information can be the guard bandwidth in the uplink carrier bandwidth, or can also be the guard bandwidth in the downlink carrier bandwidth.

[0246] Exemplarily, when the guard bandwidth indicated in the second capability information is the guard bandwidth in the uplink carrier bandwidth, the size of the guard bandwidth supported by the first device indicated by the second capability information can be understood as: the size of the guard bandwidth when the first device receives a signal on the guard bandwidth in the uplink carrier bandwidth. Similarly, when the guard bandwidth indicated in the second capability information is the guard bandwidth in the downlink carrier bandwidth, the size of the guard bandwidth supported by the first device indicated by the second capability information can be understood as: the size of the guard bandwidth when the first device receives a signal on the guard bandwidth in the downlink carrier bandwidth.

[0247] Alternatively, the size of the guard bandwidth supported by the first device indicated by the second capability information can be understood as: the size of the guard bandwidth when the first device receives a signal on the guard bandwidth in the uplink carrier bandwidth, and the second capability information also indicates the size of the guard bandwidth when the first device receives a signal on the guard bandwidth in the downlink carrier bandwidth.

[0248] Therefore, in combination with the above two possible implementation manners, it can be known that the second capability information indicates the capability of the first device to support receiving signals on the guard bandwidth, which can include: the second capability information can indicate the capability of the first device to support receiving signals on the guard bandwidth in the uplink carrier bandwidth; and / or the second capability information indicates the capability of the first device to support receiving signals on the guard bandwidth in the downlink carrier bandwidth.

[0249] For example, the second capability information indicates the capability of the first device to support receiving signals on the guard bandwidth in 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 in the uplink carrier bandwidth; or 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 in the uplink carrier bandwidth.

[0250] Similarly, the second capability information indicates the capability of the first device to support receiving signals on the guard bandwidth in the downlink carrier bandwidth, which can also be understood as: the second capability information indicates whether the first device supports receiving signals on the guard bandwidth in the downlink carrier bandwidth; or 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 in the downlink carrier bandwidth.

[0251] Specifically, the implementation of the second capability information is similar to the implementation of the second capability information in the above two possible implementation manners, and specific reference can be made to the related description of the second capability information above, which will not be described here.

[0252] Based on this example, all resources in the frequency domain resources of the WUS can be located within the guard bandwidth, so that the WUS can be transmitted within the guard bandwidth, which can improve the spectrum utilization of the carrier bandwidth compared with the scheme of transmitting the WUS on the transmission bandwidth configuration within the carrier bandwidth.

[0253] It can be understood that in the above case one, the frequency domain resources of the WUS are located within the first guard bandwidth, or the frequency domain resources of the WUS are located within the first guard bandwidth and the first transmission bandwidth configuration; and the first guard bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth; therefore, it can be considered that in the case one, the frequency domain resources of the WUS are located within a single carrier bandwidth.

[0254] Case two, the at least one guard bandwidth includes a plurality of guard bandwidths.

[0255] Optionally, the plurality of guard bandwidths can be two guard bandwidths. For convenience of description, the two guard bandwidths will be referred to as the first guard bandwidth and the second guard bandwidth respectively, that is, the plurality of guard bandwidths includes the first guard bandwidth and the second guard bandwidth; the unified description here will not be described here.

[0256] Optionally, the first guard bandwidth and the second guard bandwidth can be located in adjacent carrier bandwidths. Further, in order to ensure the continuity of the frequency domain resources of the WUS, or in order to ensure that the first device can receive the WUS on a continuous frequency domain resource, the first guard bandwidth and the second guard bandwidth can be continuous.

[0257] Specifically, the first guard bandwidth and the second guard bandwidth being continuous can be understood as: the frequency domain resources of the first guard bandwidth and the frequency domain resources of the second guard bandwidth being continuous. As shown in FIG. 13, the carrier bandwidth #1 is composed of the guard bandwidth #1, the guard bandwidth #2, and the transmission bandwidth configuration #1; the carrier bandwidth #2 is composed of the guard bandwidth #3, the guard bandwidth #4, and the transmission bandwidth configuration #2. The frequency domain resources of the guard bandwidth #2 can be subcarriers #20 to #25, and the frequency domain resources of the guard bandwidth #3 can be subcarriers #26 to #30; at this time, it can be considered that the frequency domain resources of the guard bandwidth #2 and the frequency domain resources of the guard bandwidth #3 are continuous.

[0258] Optionally, in this case, part or all of the frequency domain resources of the WUS are located in the first guard bandwidth and the second guard bandwidth; that is, part or all of the frequency domain resources of the WUS are located in at least one guard bandwidth, including: part or all of the frequency domain resources of the WUS are located in the first guard bandwidth and the second guard bandwidth.

[0259] As an example, part of the frequency domain resources of the WUS are located in the first guard bandwidth and the second guard bandwidth, and the remaining resources of the frequency domain resources of the WUS, except for the part of the resources, are located in the first transmission bandwidth configuration. The first transmission bandwidth configuration is located in the same carrier bandwidth as the first guard bandwidth.

[0260] As an example, based on the foregoing related technology, a carrier bandwidth is composed of two guard bandwidths and a transmission bandwidth configuration, and the two guard bandwidths are located at the left and right ends of the transmission bandwidth configuration. As shown in (a) of FIG. 14 and / or (b) of FIG. 14, the carrier bandwidth #1 is composed of the guard bandwidth #1, the guard bandwidth #2, and the transmission bandwidth configuration #1; the carrier bandwidth #2 is composed of the guard bandwidth #3, the guard bandwidth #4, and the transmission bandwidth configuration #2. Taking the first guard bandwidth and the second guard bandwidth being continuous as an example, as shown in (a) of FIG. 14, the first guard bandwidth can be the guard bandwidth #2, and the second guard bandwidth can be the guard bandwidth #3; at this time, the first transmission bandwidth configuration is the transmission bandwidth configuration #1. Alternatively, as shown in (b) of FIG. 14, the first guard bandwidth can be the guard bandwidth #3, and the second guard bandwidth can be the guard bandwidth #2; at this time, the first transmission bandwidth configuration is the transmission bandwidth configuration #2.

[0261] Optionally, in this example, since part of the frequency domain resources of the WUS (i.e., the remaining resources described above) are located in the first transmission bandwidth configuration, that is, the WUS needs to be transmitted in the first transmission bandwidth configuration; therefore, when configuring the frequency domain resources of the WUS, the second device needs to consider the carrier frequency (or frequency band) applicable to the first device; and then select a carrier frequency from the carrier frequency applicable to the first device, and configure the frequency domain resources of the WUS in the carrier bandwidth corresponding to the carrier frequency and the adjacent carrier bandwidth thereof. At this time, the carrier bandwidth corresponding to the carrier frequency includes the first guard bandwidth and the first transmission bandwidth configuration.

[0262] For example, as shown in (a) of FIG. 14, when the first guard bandwidth is guard bandwidth #2, the second guard bandwidth is guard bandwidth #3, and the first transmission bandwidth configuration is transmission bandwidth configuration #1, at this time, the carrier bandwidth corresponding to the carrier frequency band applicable to the first device is carrier bandwidth #1, and the adjacent carrier bandwidth of the carrier bandwidth #1 is carrier bandwidth #2. Similarly, as shown in (b) of FIG. 14, when the first guard bandwidth is guard bandwidth #3, the second guard bandwidth is guard bandwidth #2, and the first transmission bandwidth configuration is 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 the adjacent carrier bandwidth of the carrier bandwidth #1 is carrier bandwidth #1.

[0263] Optionally, part or all of the other frequency domain resources in the first transmission bandwidth configuration except the remaining resources of the WUS can be configured to other signals except the WUS.

[0264] For example, when part of the other frequency domain resources in the first transmission bandwidth configuration except the remaining resources of the WUS are configured to other signals except the WUS, the interval between part of the other frequency domain resources in the first transmission bandwidth configuration except the remaining resources of the WUS and the remaining resources of the WUS is greater than or equal to the signal interval.

[0265] For example, the implementation of the signal interval can refer to the description in the foregoing related technologies, which will not be described here.

[0266] Optionally, the frequency domain resources of the WUS can be autonomously configured by the second device according to the carrier frequency applicable to the first device; or, the frequency domain resources of the WUS can also be determined by the second device according to the capability of the first device.

[0267] For example, when the frequency domain resources of the WUS are determined by the capability of the second device, before step S701, the first device can send the first capability information to the second device, so that the second device can determine the frequency domain resources of the WUS based on the first capability information.

[0268] Specifically, the implementation of the first capability information can refer to the related description of the above embodiments, which will not be repeated here.

[0269] Based on the example, part of the frequency domain resources of the WUS can be located within the plurality of guard bandwidths, and further, another part of the frequency domain resources of the WUS can be located in a transmission bandwidth configuration within the same carrier bandwidth as one of the plurality of guard bandwidths, so that the WUS can be transmitted within the transmission bandwidth configuration and the guard bandwidth, which can improve the spectrum utilization of the carrier bandwidth compared with the scheme of transmitting the WUS only on the transmission bandwidth configuration within the carrier bandwidth.

[0270] As another example, all of the frequency domain resources of the WUS are located within the first guard bandwidth and the second guard bandwidth.

[0271] For example, based on the foregoing related technology, one carrier bandwidth is composed of two guard bandwidths and one transmission bandwidth configuration, and the two guard bandwidths are located at the left and right ends of the transmission bandwidth configuration; as shown in (a)-(c) of FIG. 15, carrier bandwidth #1 is composed of guard bandwidth #1, guard bandwidth #2, and transmission bandwidth configuration #1; carrier bandwidth #2 is composed of guard bandwidth #3, guard bandwidth #4, and transmission bandwidth configuration #2. Taking the case of continuous first guard bandwidth and second guard bandwidth 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.

[0272] As shown in (a) of FIG. 15, in the frequency domain resources of the WUS, the frequency domain resources located in the guard bandwidth #2 are equal to the frequency domain resources located in the guard bandwidth #3; or, as shown in (b) of FIG. 15, in the frequency domain resources of the WUS, the frequency domain resources located in the guard bandwidth #2 are less than the frequency domain resources located in the guard bandwidth #3; as shown in (c) of FIG. 15, in the frequency domain resources of the WUS, the frequency domain resources located in the guard bandwidth #2 are greater than the frequency domain resources located in the guard bandwidth #3.

[0273] That is, when all of the frequency domain resources of the WUS are located within the first guard bandwidth and the second guard bandwidth, in the frequency domain resources of the WUS, the frequency domain resources located in the first guard bandwidth can be greater than the frequency domain resources located in the second guard bandwidth, or the frequency domain resources located in the first guard bandwidth can be less than the frequency domain resources located in the second guard bandwidth, or the frequency domain resources located in the first guard bandwidth can be equal to the frequency domain resources located in the second guard bandwidth.

[0274] Optionally, in this example, since all of the frequency domain resources of the WUS are located within the first guard bandwidth and the second guard bandwidth, that is, the WUS does not need to be transmitted within the transmission bandwidth configuration. It can be understood that in the current transmission of the WUS, all signals are transmitted within the transmission bandwidth configuration, and the transmission bandwidth configuration within a carrier bandwidth needs to be configured to a device supporting the frequency of the carrier bandwidth. Since the signal is not transmitted within the guard bandwidth, the current device does not have a limitation on the applicable device of the guard bandwidth, and therefore, the guard bandwidth can be shared by any device. That is, even if the first device is not applicable to the carrier frequency of the first transmission bandwidth configuration and the second transmission bandwidth configuration (or the frequency of the carrier bandwidth in which the first transmission bandwidth configuration is located and the frequency of the carrier bandwidth in which the second transmission bandwidth configuration is located), the first device can still receive the signal within the first guard bandwidth and the second guard bandwidth, that is, the frequency domain resources of the WUS can be located within the first guard bandwidth.

[0275] Optionally, the second transmission bandwidth configuration is located within the same carrier bandwidth as the second guard bandwidth. In addition, since the first guard bandwidth and the second guard 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.

[0276] Optionally, the first guard bandwidth and the second guard bandwidth can be located within an uplink carrier bandwidth; that is, the carrier bandwidth in which the first guard bandwidth and the second guard bandwidth are located is an uplink carrier bandwidth. Alternatively, the first guard bandwidth and the second guard bandwidth can be located within a downlink carrier bandwidth; that is, the carrier bandwidth in which the first guard bandwidth and the second guard bandwidth are located is a downlink carrier bandwidth.

[0277] Optionally, the implementation of the uplink carrier bandwidth and the downlink carrier bandwidth can be referred to the related description of the foregoing embodiments, which will not be described here.

[0278] Optionally, in this example, part or all of the resources in the first transmission bandwidth configuration can be configured to signals other than the WUS.

[0279] Optionally, since part of the resources in the first transmission bandwidth configuration are configured to signals other than the WUS, the interval between part of the resources in the first transmission bandwidth configuration and the remaining resources of the WUS is greater than or equal to the signal interval.

[0280] Optionally, the implementation of the signal interval can be referred to the introduction in the foregoing related technologies, which will not be described here.

[0281] Optionally, the frequency domain resources of the WUS can be autonomously configured by the second device according to the carrier frequency applicable to the first device; or can also be determined by the second device according to the capability of the first device.

[0282] For example, when the frequency domain resource of the WUS is determined by the second device according to the capability of the first device, the capability of the first device can be indicated by the 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 resource of the WUS based on the second capability information.

[0283] Specifically, the implementation of the second capability information can refer to the related description of the above-mentioned embodiments, which will not be repeated here.

[0284] Based on this example, all resources in the frequency domain resource of the WUS can be located within the multiple guard bandwidths, so that the WUS can be transmitted within the multiple guard bandwidths, which can improve the spectrum utilization of the carrier bandwidth compared with the scheme of transmitting the WUS only within the transmission bandwidth configuration within the carrier bandwidth; further, since the WUS can be transmitted within the multiple guard bandwidths, the flexibility of configuring the WUS can be improved compared with the scheme of transmitting the WUS within a single guard bandwidth.

[0285] It can be understood that in the above-mentioned case two, the frequency domain resource of the WUS is located within the first guard bandwidth and the second guard bandwidth, or the frequency domain resource of the WUS is located within the first guard bandwidth, the second guard bandwidth, and the first transmission bandwidth configuration; and the first guard bandwidth and the first transmission bandwidth configuration are located within the same carrier bandwidth, and the first guard bandwidth and the second guard bandwidth are located within adjacent carrier bandwidths; therefore, it can be considered that in case two, the frequency domain resource of the WUS is located within multiple carrier bandwidths (or adjacent carrier bandwidths).

[0286] In combination with the above two cases, optionally, the frequency domain resource of the WUS includes at least one frequency domain unit, or in other words, the frequency domain resource of the WUS is composed of at least one frequency domain unit. Wherein, any two frequency domain units in the at least one frequency domain unit included in the frequency domain resource of the WUS are of the same size.

[0287] For example, the frequency domain unit can be any of the following: subcarrier, subcarrier spacing (SCS), RB, or RE.

[0288] 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.

[0289] Optionally, the size of the frequency domain unit in the frequency domain resource of the 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 resource of the WUS is related to the size of the frequency domain unit in the second transmission bandwidth configuration.

[0290] For example, as shown in FIG. 13, the carrier bandwidth #1 is composed of the guard bandwidth #1, the guard bandwidth #2, and the transmission bandwidth configuration #1; and the carrier bandwidth #2 is composed of the guard bandwidth #3, the guard bandwidth #4, and the transmission bandwidth configuration #2. Wherein, the first guard bandwidth can be the guard bandwidth #2, and the corresponding second guard bandwidth is the guard bandwidth #3, at this time, the first transmission bandwidth configuration is the transmission bandwidth configuration #1, and the second transmission bandwidth configuration is the transmission bandwidth configuration #2. Alternatively, the first guard bandwidth can be the guard bandwidth #3, and the corresponding second guard bandwidth is the guard bandwidth #2, at this time, the first transmission bandwidth configuration is the transmission bandwidth configuration #2, and the second transmission bandwidth configuration is the transmission bandwidth configuration #1.

[0291] 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.

[0292] Therefore, the set composed of the at least one frequency domain unit in the first transmission bandwidth configuration can be referred to as a frequency domain unit set, or the set composed of the at least one frequency domain unit in the first transmission bandwidth configuration and the at least one frequency domain unit in the second transmission bandwidth configuration can be referred to as a frequency domain unit set; at this time, it can be considered that the size of the frequency domain unit in the frequency domain resource of the WUS is related to the size of the frequency domain unit in the frequency domain unit set.

[0293] For convenience of description, in the following, any one of the frequency domain units in the frequency domain resource of the WUS is referred to as a first frequency domain unit, and the frequency domain unit related to the first frequency domain unit in the frequency domain unit set is referred to as a second frequency domain unit; this unified description is not repeated.

[0294] That is, the size of the first frequency domain unit is related to the size of the second frequency domain unit. Wherein, the second frequency domain unit is one of the frequency domain units in the frequency domain unit set.

[0295] For example, based on different implementations of the frequency domain resource of the WUS, the second frequency domain unit can include the following two different implementations:

[0296] In the first possible implementation, the second frequency domain unit is any one of the frequency domain units in the frequency domain unit set.

[0297] For example, in this possible implementation, the frequency domain unit set can be composed of the at least one frequency domain unit in the first transmission bandwidth configuration; or the frequency domain unit set can also be composed of the at least one frequency domain unit in the first transmission bandwidth configuration and the at least one frequency domain unit in the second transmission bandwidth configuration.

[0298] That is, the set of frequency domain units includes at least one frequency domain unit used to constitute the first transmission bandwidth configuration; or the set of frequency domain units includes at least one frequency domain unit used to constitute the first transmission bandwidth configuration and at least one frequency domain unit used to constitute the second transmission bandwidth configuration.

[0299] It can be understood that, for at least one frequency domain unit in a transmission bandwidth configuration, the sizes of any two frequency domain units therein can be the same or different. Thus, when the frequency domain units in the set of frequency domain units are not all the same, if the second frequency domain unit is a different frequency domain unit in the set of frequency domain units, the corresponding first frequency domain unit is also different.

[0300] In a 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 the WUS.

[0301] For example, in this possible implementation, the set of frequency domain units can be constituted by at least one frequency domain unit in the first transmission bandwidth configuration; or the set of frequency domain units can also be constituted by 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.

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

[0303] For example, when the set of frequency domain units includes at least one frequency domain unit used to constitute 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 the WUS, which 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 the WUS.

[0304] For example, taking a subcarrier as a frequency domain unit, if the first transmission bandwidth configuration includes subcarrier #1 to subcarrier #20, that is, the second frequency domain unit is the subcarrier in subcarrier #1 to subcarrier #20 that is closest in frequency to the frequency domain resource of the WUS.

[0305] For another example, when the set of frequency domain units includes at least one frequency domain unit used to constitute the first transmission bandwidth configuration and at least one frequency domain unit used to constitute the 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 resource of the WUS, which 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 resource of the WUS.

[0306] For example, if the first transmission bandwidth configuration includes subcarriers #1-#20 and the second transmission bandwidth configuration includes subcarriers #40-#60, i.e., the second frequency domain unit is the subcarrier #1-#20 and the subcarrier #40-#60 closest to the frequency of the frequency domain resource of the WUS.

[0307] In a third possible implementation, when the set of frequency domain units is composed 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 within the third transmission bandwidth configuration in the set of frequency domain units. The third transmission bandwidth configuration is the transmission bandwidth configuration closest to the frequency of the frequency domain resource of the WUS in the first transmission bandwidth configuration and the second transmission bandwidth configuration.

[0308] Specifically, when the transmission bandwidth configuration closest to the frequency of the frequency domain resource of the WUS in the first transmission bandwidth configuration and the second transmission bandwidth configuration is the first transmission bandwidth configuration, the third transmission bandwidth configuration is the first transmission bandwidth configuration; when the transmission bandwidth configuration closest to the frequency of the frequency domain resource of the WUS in the first transmission bandwidth configuration and the second transmission bandwidth configuration is the second transmission bandwidth configuration, the third transmission bandwidth configuration is the second transmission bandwidth configuration.

[0309] For example, the set of frequency domain units is composed 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, which can also be understood as: the set of frequency domain units includes at least one frequency domain unit used to constitute the first transmission bandwidth configuration and at least one frequency domain unit used to constitute the second transmission bandwidth configuration.

[0310] That is, when the set of frequency domain units includes at least one frequency domain unit used to constitute the first transmission bandwidth configuration and at least one frequency domain unit used to constitute the second transmission bandwidth configuration, the second frequency domain unit is any one of the at least one frequency domain unit included in the third transmission bandwidth configuration.

[0311] For example, if the first transmission bandwidth configuration includes subcarriers #1-#20 and the second transmission bandwidth configuration includes subcarriers #40-#60, i.e., the second frequency domain unit is the subcarrier #1-#20 and the subcarrier #40-#60 closest to the frequency of the frequency domain resource of the WUS.

[0312] In a fourth possible implementation, the second frequency domain unit is any one of the frequency domain units within the first BWP. The frequency domain unit set includes at least one BWP, and the first BWP is one of the at least one BWP.

[0313] That is, the second frequency domain unit is one of the frequency domain units in the frequency domain unit set, including: the second frequency domain unit is any one of the frequency domain units within the first BWP.

[0314] It can be understood that one 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 one BWP are of the same size; the sizes of the frequency domain units constituting different BWPs can be the same or different. Therefore, when the first BWP is a different BWP of the at least one BWP (i.e., the second frequency domain unit is a frequency domain unit within the different BWP), the first frequency domain unit is also different accordingly.

[0315] For example, when the at least one BWP is all located within the first transmission bandwidth configuration, it can be considered that the frequency domain unit set includes at least one frequency domain unit used to constitute the first transmission bandwidth configuration; when part of the at least one BWP is located within the first transmission bandwidth configuration, and another part of the BWP is located within the second transmission bandwidth configuration, it can be considered that the frequency domain unit set includes at least one frequency domain unit used to constitute the first transmission bandwidth configuration and at least one frequency domain unit used to constitute the second transmission bandwidth configuration.

[0316] For example, when multiple BWPs of the at least one BWP are located within the same transmission bandwidth configuration, the frequency domain units within the multiple BWPs can overlap or not overlap.

[0317] Optionally, the first BWP is any one of the at least one BWP; or the first BWP is the BWP closest to the frequency of the frequency domain resource of the WUS among the at least one BWP; or the first BWP is the largest BWP among the at least one BWP; or the first BWP is the smallest BWP among the at least one BWP; or the first BWP is the BWP with the largest frequency domain unit among the at least one BWP; or the first BWP is the BWP with the smallest frequency domain unit among the at least one BWP.

[0318] For example, each of the at least one BWP is composed of one or more frequency domain units; based on the foregoing, it can be understood that the size of any two frequency domain units in the at least one frequency domain unit constituting a BWP is the same, and the size of the frequency domain units constituting different BWPs can be the same or different; therefore, when the size of the frequency domain units constituting different BWPs is different, the BWP with the largest frequency domain unit in the at least one BWP can be understood as: the BWP in which the largest frequency domain unit in the set of frequency domain units is located, or the BWP constituted by the largest frequency domain unit in the set of frequency domain units. Similarly, the BWP with the smallest frequency domain unit in the at least one BWP can be understood as: the BWP in which the smallest frequency domain unit in the set of frequency domain units is located, or the BWP constituted by the smallest frequency domain unit in the set of frequency domain units.

[0319] In combination with the above four possible implementations, 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: the first frequency domain unit is less than or equal to the second frequency domain unit.

[0320] For example, the second device can determine the second frequency domain unit based on one of the above four possible implementations, and further take 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 the WUS based on the first frequency domain unit. Alternatively, the second frequency domain unit is used to determine the first frequency domain unit, so that the first frequency domain unit is less than the second frequency domain unit, and then the frequency domain unit of the WUS is determined based on the first frequency domain unit.

[0321] Based on the optional scheme, it can be understood that the frequency domain units (such as subcarrier widths) of the two frequency domain resources are the same, which can reduce the interference between the signals carried on the two frequency domain resources, so that when the first frequency domain unit is equal to the second frequency domain unit, the interference between the signals can be reduced. When the first frequency domain unit is less than the second frequency domain unit, compared with the scheme that the first frequency domain unit is equal to the second frequency domain unit, the frequency domain resource of the WUS is smaller, and the BWP occupied by the WUS in the carrier bandwidth is smaller, so that the flexibility of the second device in configuring the frequency domain resource of the WUS can be improved. In addition, since the BWP occupied by the frequency domain resource of the WUS in the carrier bandwidth is smaller, compared with the scheme that the first frequency domain unit is equal to the second frequency domain unit, the interval between the frequency domain resource of the WUS and other signals can be increased, so that the interference between the signals can be reduced.

[0322] In some embodiments, part or all of the frequency domain resource of the WUS is used to carry the WUS.

[0323] For example, when all resources in the frequency domain resources of the WUS are used to carry the WUS, it indicates that there is no guard bandwidth in the frequency domain resources of the WUS, thereby improving the utilization of the spectrum. When part of the resources in the frequency domain resources of the WUS are used to carry the WUS, the remaining resources in the frequency domain resources of the WUS other than the part of the resources are guard bandwidths, which are used to isolate the mutual interference between signals on the transmission bandwidth configurations (such as the first transmission bandwidth configuration and / or the second transmission bandwidth configuration) and the WUS.

[0324] (1) for all resources in the frequency domain resources of the WUS to carry the WUS:

[0325] Optionally, the interval between the WUS and the other signal other than the WUS is a signal interval. That is, the frequency domain resources of the WUS are separated from the frequency domain resources occupied by the other signal by one or more frequency domain units, which are the signal interval. The signal interval is used to isolate the mutual interference between the WUS and the other signal.

[0326] As an example, the frequency domain resources of the other signal can be located on the first transmission bandwidth configuration.

[0327] For example, under this example, the signal interval can be understood as the signal interval between the WUS and the other signal on the first transmission bandwidth configuration. That is, the one or more frequency domain units are the signal interval between the WUS and the other signal on the first transmission bandwidth configuration.

[0328] For example, if part of the frequency domain resources of the WUS are located within a single carrier bandwidth, and part of the frequency domain resources of the WUS are located within the first guard bandwidth and another part of the frequency domain resources of the WUS are located within the first transmission bandwidth configuration (as shown in (a) of FIG. 9 or (b) of FIG. 9), 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 guard bandwidth and the second guard bandwidth, and another part of the frequency domain resources of the WUS are located within the first transmission bandwidth configuration (as shown in (a) of FIG. 14 or (b) of FIG. 14), the one or more frequency domain units are all frequency domain units within the first transmission bandwidth configuration. That is, when the second device configures frequency domain resources for the other signal on the first transmission bandwidth configuration, it needs to be noted that the frequency domain resources configured for the other signal need to have a signal interval with the frequency domain resources of the WUS.

[0329] If the frequency domain resource of the WUS is located in a single carrier bandwidth, and all of the frequency domain resources of the WUS are located in the first guard bandwidth (as shown in (a) of FIG. 11 or (b) of FIG. 11), or if the frequency domain resource of the WUS is located in multiple carrier bandwidths, and all of the frequency domain resources of the WUS are located in the first guard bandwidth and the second guard bandwidth (as shown in any one of (a) to (b) of FIG. 15), the one or more frequency domain units can each be a frequency domain unit in the first guard bandwidth; that is, when the second device configures the frequency domain resource for the other signal on the first transmission bandwidth configuration, it can configure any frequency domain resource on the first transmission configuration bandwidth to the other signal. Alternatively, the one or more frequency domain units include a frequency domain unit in the first guard bandwidth and a frequency domain unit in the first transmission bandwidth configuration; that is, when the second device configures the frequency domain resource for the other signal on the first transmission bandwidth configuration, it needs to pay attention to that the frequency domain resource configured for the other signal needs to have a signal interval with the frequency domain resource of the WUS.

[0330] As an example, the frequency domain resource of the other signal can be located on a transmission bandwidth configuration in a carrier bandwidth adjacent to the carrier bandwidth in which the first transmission configuration and / or the first guard bandwidth is located.

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

[0332] As an example, the transmission bandwidth configuration in the carrier bandwidth adjacent to the carrier bandwidth in which the first transmission configuration and / or the first guard bandwidth is located can be the second transmission bandwidth configuration, and for the convenience of description, the transmission bandwidth configuration in the carrier bandwidth adjacent to the carrier bandwidth in which the first transmission configuration and / or the first guard bandwidth is located will be referred to as the second transmission bandwidth configuration hereinafter, and will be described uniformly hereinafter, and will not be described again.

[0333] For example, if part of the frequency domain resource of the WUS is located in a single carrier bandwidth, and part of the frequency domain resource of the WUS is located in the first guard bandwidth and another part is located in the first transmission bandwidth configuration (as shown in (a) of FIG. 9 or (b) of FIG. 9), or if the frequency domain resource of the WUS is located in a single carrier bandwidth, and all of the frequency domain resource of the WUS is located in the first guard bandwidth (as shown in (a) of FIG. 11 or (b) of FIG. 11), 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 on the second transmission bandwidth configuration, it can configure any frequency domain resource on the second transmission configuration bandwidth to the other resource.

[0334] For example, if part of the frequency domain resource of the WUS is located in a single carrier bandwidth, and part of the frequency domain resource of the WUS is located in the first guard bandwidth and another part is located in the first transmission bandwidth configuration (as shown in (a) of FIG. 9 or (b) of FIG. 9), or if the frequency domain resource of the WUS is located in a single carrier bandwidth, and all of the frequency domain resource of the WUS is located in the first guard bandwidth (as shown in (a) of FIG. 11 or (b) of FIG. 11), 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 on the second transmission bandwidth configuration, it can configure any frequency domain resource on the second transmission configuration bandwidth to the other resource.

[0335] For example, if part of the frequency domain resource of the WUS is located in a single carrier bandwidth, and part of the frequency domain resource of the WUS is located in the first guard bandwidth and another part is located in the first transmission bandwidth configuration (as shown in (a) of FIG. 9 or (b) of FIG. 9), or if the frequency domain resource of the WUS is located in a single carrier bandwidth, and all of the frequency domain resource of the WUS is located in the first guard bandwidth (as shown in (a) of FIG. 11 or (b) of FIG. 11), and the one or more frequency domain units can all be frequency domain units in the first guard bandwidth; at this time, the one or more frequency domain units can also be considered as the interval between the WUS and the edge of the carrier bandwidth in which the WUS is located.

[0336] It should be understood that the above two examples respectively list the implementation of the frequency domain resource of the WUS under different conditions, and in fact, the above two examples can also be used in combination, for example, the other signals in addition to the WUS can be located in the first transmission bandwidth configuration and can also be located in the second transmission bandwidth configuration; wherein the other signals located in the first transmission bandwidth configuration are the same as or different from the other signals located in the second transmission bandwidth configuration. At this time, there is a signal interval between the WUS and the other signals in the first transmission bandwidth configuration, and there is also a signal interval between the WUS and the other signals in the second transmission bandwidth configuration. At this time, the implementation of the WUS can refer to the related description of the above two examples and will not be repeated here.

[0337] In addition, in the above two examples, there can also be no signal interval between the WUS and the other signals in the first transmission bandwidth configuration, and / or there can also be no signal interval between the WUS and the other signals in the second transmission bandwidth configuration. That is, one or more frequency domain units included in the signal interval in the above two examples can be replaced by 0 frequency domain units.

[0338] For example, when the performance of the first device or the device for receiving the other signal is strong, even if there is no interval between the other signal and the WUS, there is no need to worry about the interference between the signals, and the first device can still successfully receive the WUS, or the device for receiving the other signal can still successfully receive the other signal.

[0339] Optionally, in combination with the above two examples, the number of one or more frequency domain units used to isolate the mutual interference between the WUS and the other signals in addition to the WUS can be C. Wherein, C is a positive integer greater than or equal to 1.

[0340] Exemplarily, based on the foregoing, it is known that one subcarrier is 1 kHz; therefore, when the frequency domain unit is a subcarrier, the signal interval between the frequency domain resource of the WUS and the signal on the transmission bandwidth configuration is greater than or equal to C frequency domain units, which can be understood as: the signal interval between the frequency domain resource of the WUS and the signal on the transmission bandwidth configuration is greater than or equal to C kHz.

[0341] Exemplarily, 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. Or, the value of C can be agreed by the first device and the second device in advance, for example, it can be predefined by the protocol. Or, the value of C is equal to the number of frequency domain units in the frequency domain resource of the WUS, that is, at this time, the frequency domain resource of the WUS is composed of C frequency domain units. Or, the value of C can be a fixed value; for example, C can be a frequency value in a low frequency range, or C can be a frequency value in a high frequency range.

[0342] 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.

[0343] (ii) part of the frequency domain resources of the WUS is used to carry the WUS:

[0344] For example, when part of the frequency domain resources of the WUS is used to carry the WUS, the frequency domain resources of the WUS further include a third guard bandwidth and / or a fourth guard bandwidth. The third guard bandwidth and the fourth guard bandwidth are respectively located at both ends of the part of the resources.

[0345] For example, the third guard bandwidth can be located between the WUS and other signals on the first transmission bandwidth configuration except the WUS; correspondingly, the fourth guard bandwidth can be located between the WUS and other signals on the second transmission bandwidth configuration except the WUS.

[0346] Optionally, the width of the third guard bandwidth is greater than or equal to C frequency domain units, or the sum of the width of the third guard bandwidth and the interval between the third guard bandwidth and the signals on the first transmission bandwidth configuration is greater than or equal to C frequency domain units.

[0347] For example, when all the frequency domain resources of the WUS are located within the first guard bandwidth, as shown in (a) of FIG. 16, the first guard bandwidth is guard bandwidth #1, and the first transmission bandwidth configuration is transmission bandwidth configuration #1; or when all the frequency domain resources of the WUS are located within the first guard bandwidth and the second guard bandwidth, as shown in (b) of FIG. 16, the first guard bandwidth is guard bandwidth #1, the first transmission bandwidth configuration is transmission bandwidth configuration #1, the second guard bandwidth is guard bandwidth #2, and the second transmission bandwidth configuration is transmission bandwidth configuration #2. At this time, the third guard bandwidth is also located within the first guard bandwidth. The size of the third guard bandwidth can be C1 frequency domain units. The third guard bandwidth is separated from the first transmission bandwidth configuration by C2 frequency domain units.

[0348] In (a) of FIG. 16 or (b) of FIG. 16, if C1≥C, or C1+C2≥C, or C2≥C, the other signals on the first transmission bandwidth configuration except the WUS can be located at any position within the first transmission bandwidth configuration, that is, the second device configures any frequency domain unit within the first transmission bandwidth to the other signals. When C1≥C, C2 can be equal to 0; or when C2≥C, C1 can be equal to 0, at this time it can be considered that the frequency domain resources of the WUS do not include the third guard bandwidth, that is, the third guard bandwidth does not exist within the frequency domain resources of the WUS.

[0349] For example, as shown in (c) of FIG. 16, when part of the frequency domain resources of the WUS is located in the first guard bandwidth and the other part is located in the first transmission bandwidth, the first guard bandwidth is guard bandwidth #1, and the first transmission bandwidth is configured as transmission bandwidth configuration #1; or as shown in (d) of FIG. 16, when part of the frequency domain resources of the WUS is located in the first guard bandwidth and the second guard bandwidth and the other part is located in the first transmission bandwidth, the first guard bandwidth is guard bandwidth #1, the first transmission bandwidth is configured as transmission bandwidth configuration #1, the second guard bandwidth is guard bandwidth #2, and the second transmission bandwidth is configured as transmission bandwidth configuration #2. At this time, the third guard bandwidth is also located in the first transmission bandwidth configuration. The size of the third guard bandwidth can be C1 frequency domain units. In (c) of FIG. 16 or (d) of FIG. 16, if C1≥C, the other signal in the first transmission bandwidth configuration except the WUS can be located in the remaining frequency domain resources in the first transmission bandwidth configuration except the frequency domain resources of the WUS and the third guard bandwidth; that is, the second device can configure the remaining frequency domain resources in the first transmission bandwidth configuration except the frequency domain resources of the WUS and the third guard bandwidth to the other signal.

[0350] Optionally, the fourth guard bandwidth has a width 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 on the second transmission bandwidth configuration is greater than or equal to C frequency domain units.

[0351] For example, as shown in (a) of FIG. 16, when all the frequency domain resources of the WUS are located in the first guard bandwidth, or as shown in (c) of FIG. 16, when part of the frequency domain resources of the WUS is located in the first guard bandwidth and the other part is located in the first transmission bandwidth, the first guard bandwidth is guard bandwidth #1, and the first transmission bandwidth is configured as transmission bandwidth configuration #1; at this time, the frequency domain resources of the WUS are located in the carrier bandwidth #1, and the carrier bandwidth adjacent to the carrier bandwidth #1 is the carrier bandwidth #2, so the transmission bandwidth configuration #2 in the carrier bandwidth #2 can be considered as the second transmission bandwidth configuration. At this time, the fourth guard bandwidth can be located in the first guard bandwidth.

[0352] For example, as shown in (a) of FIG. 16, when all the frequency domain resources of the WUS are located in the first guard bandwidth, or as shown in (c) of FIG. 16, when part of the frequency domain resources of the WUS is located in the first guard bandwidth and the other part is located in the first transmission bandwidth, the first guard bandwidth is guard bandwidth #1, and the first transmission bandwidth is configured as transmission bandwidth configuration #1; at this time, the frequency domain resources of the WUS are located in the carrier bandwidth #1, and the carrier bandwidth adjacent to the carrier bandwidth #1 is the carrier bandwidth #2, so the transmission bandwidth configuration #2 in the carrier bandwidth #2 can be considered as the second transmission bandwidth configuration. At this time, the fourth guard bandwidth can be located in the first guard bandwidth.

[0353] The size of the fourth guard bandwidth can be C3 frequency domain units. The fourth guard bandwidth is spaced apart from the second transmission bandwidth configuration by C4 frequency domain units. In any one of (a) in FIG. 16 to (d) in FIG. 16, if C3≥C, or C3+C4≥C, or C4≥C, other signals on the second transmission bandwidth configuration than the WUS can be located at any position within the second transmission bandwidth configuration, that is, the second device configures any frequency domain unit within the second transmission bandwidth to the other signals. When C3≥C, C4may be equal to 0; or when C4≥C, C3may be equal to 0, at this time, it can be considered that the fourth guard bandwidth is not included in the frequency domain resource of the WUS, that is, the fourth guard bandwidth does not exist in the frequency domain resource of the WUS.

[0354] In addition, as shown in (a) in FIG. 16, when all resources in the frequency domain resource of the WUS are located within the first guard bandwidth, or as shown in (c) in FIG. 16, when part of the resources in the frequency domain resource of the WUS are located within the first guard bandwidth and the other part of the resources are located within the first transmission bandwidth, the third guard bandwidth is spaced apart from the edge of the carrier bandwidth (that is, the carrier bandwidth #1) by C5 frequency domain units. Wherein, if C3≥C, or C3+C5≥C, or C5≥C, other signals on the second transmission bandwidth configuration than the WUS can be located at any position within the second transmission bandwidth configuration, that is, the second device configures any frequency domain unit within the second transmission bandwidth to the other signals. Wherein, when C3≥C, C5may be equal to 0; or when C5≥C, C3may be equal to 0, at this time, it can be considered that the fourth guard bandwidth is not included in the frequency domain resource of the WUS, that is, the fourth guard bandwidth does not exist in the frequency domain resource of the WUS.

[0355] For example, the third guard bandwidth and / or the fourth guard bandwidth can be determined by the second device based on the above two optional schemes, or the third guard bandwidth and / or the fourth guard bandwidth can be predefined by a protocol, which is not limited in the present application.

[0356] Optionally, any one of the C frequency domain units in the above two optional schemes can be less than or equal to the first frequency domain unit, or any one of the C frequency domain units is less than or equal to the second frequency domain unit.

[0357] For example, the implementation of the first frequency domain unit and the second frequency domain unit can refer to the related 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 refer to the related description of the value of C in the above embodiments, which will not be repeated here.

[0358] Optionally, when the third guard bandwidth and / or the fourth guard bandwidth is determined by the second device, the second device can further determine the third guard bandwidth and / or the fourth guard bandwidth based on the capability reported by the first device.

[0359] For example, the second device can determine the third guard bandwidth and / or the fourth guard bandwidth based on the third capability information reported by the first device. Specifically, as shown in FIG. 17, before step S701, the signal transmission method further includes step S700C:

[0360] S700C, the first device sends third capability information to the second device, and correspondingly, the second device receives the third capability information from the first device.

[0361] The third capability information indicates whether the first device supports no guard bandwidth within the frequency domain resource of the WUS, and / or indicates the value of C supported by the first device.

[0362] For example, when the third capability information indicates that the first device supports no guard bandwidth within the frequency domain resource of the WUS, the second device can configure the frequency domain resource for the WUS, wherein the frequency domain resource of the WUS is used to carry the WUS. Or, when the third capability information indicates that the first device does not support no guard bandwidth within the frequency domain resource of the WUS, the second device can determine the third guard bandwidth and / or the fourth guard bandwidth based on the above embodiment, and then determine the frequency domain resource of the WUS, so that part of the resources in the frequency domain resource of the WUS are used to carry the WUS.

[0363] 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 scheme described in the above embodiment; or, the second device can determine the value of C indicated by the third capability information as the value of C in the scheme described in the above embodiment; for example, let the value of C 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 guard bandwidth and / or the fourth guard bandwidth based on the value of C in the scheme described in the above embodiment, and then determine the frequency domain resource of the WUS, so that part or all of the resources in the frequency domain resource of the WUS are used to carry the WUS.

[0364] For example, based on the foregoing, when the first frequency domain unit is equal to the second frequency domain unit, the interference between the signals other than the WUS on the transmission bandwidth configuration and the 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 the first device supports no guard bandwidth within the frequency domain resource of the WUS.

[0365] Exemplarily, since the size of the single frequency domain unit is different when the first frequency domain unit is equal to the second frequency domain unit and when the first frequency domain unit is less than the second frequency domain unit, the value of C in the C frequency domain units is different when the first frequency domain unit is equal to the second frequency domain unit and when the first frequency domain unit is less 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 less than the second frequency domain unit. Therefore, the first device can indicate the value of C supported by the first device based on the two cases that the first frequency domain unit is equal to the second frequency domain unit and that the first frequency domain unit is less than the second frequency domain unit, respectively. At this time, the third indication information indicating the value of C supported by the first device can include: the third indication information indicating the value of C supported by the first device in the case that the first frequency domain unit is equal to the second frequency domain unit, and / or the third indication information indicating the value of C supported by the first device in the case that the first frequency domain unit is less than the second frequency domain unit.

[0366] Exemplarily, in the above embodiment, the size of the frequency domain resource (including the guard bandwidth (i.e., including the third guard bandwidth and / or the fourth guard bandwidth), if any) of the WUS can be an integer multiple of RB. Wherein, the size of one RB is A subcarriers, for example, A = 12.

[0367] It should be noted that the above-mentioned various corresponding relationships are exemplary and do not represent that the related parameters only include the content shown by the above-mentioned corresponding relationships; the related parameters can also include other related values in addition to the content in the above-mentioned corresponding relationships. In addition, the above-mentioned various corresponding relationships are introduced by taking tables as examples. In fact, the various corresponding relationships can be embodied in the form of lists, sets, etc., and the present application is not limited.

[0368] It should be noted that each embodiment of the present application can be implemented independently or in combination, and is not limited. If there is no special description and logical conflict, the terms and / or descriptions provided in different embodiments of the present application are consistent and can be mutually referenced. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0369] It should be noted that each device includes a hardware structure and / or software module corresponding to each function in order to implement the above functions. Those skilled in the art should easily understand that, in combination with the algorithm steps of each example described in the embodiments disclosed in the present document, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is implemented in the form of hardware or 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 the present application.

[0370] It should be noted that each device includes a hardware structure and / or software module corresponding to each function in order to implement the above functions. Those skilled in the art should easily understand that, in combination with the algorithm steps of each example described in the embodiments disclosed in the present document, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is implemented in the form of hardware or 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 the present application.

[0371] The embodiments of the present application can divide the function modules of each device according to the above method examples, for example, each function module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated module can be realized in the form of hardware or in the form of a software function module. It should be noted that the division of the modules in the embodiments of the present application is illustrative, and is only a logical function division. There can be another division manner when actually implemented.

[0372] FIG. 18 shows a structural schematic diagram of a communication apparatus 1800. The communication apparatus 1800 includes a processing module 1801 and a transceiver module 1802. The communication apparatus can be used to implement the functions of the first device or the second device described above.

[0373] In some embodiments, the communication apparatus 1800 can further include a storage module (not shown in FIG. 18) for storing program instructions and data.

[0374] In some embodiments, the transceiver module 1802, also referred to as a transceiver unit, is used to implement the sending and / or receiving functions. The transceiver module 1802 can be composed of a transceiver circuit, a transceiver, a transceiver, or a communication interface.

[0375] In some embodiments, the transceiver module 1802 can include a receiving module and a transmitting module for performing the receiving actions or transmitting actions (i.e., the steps of receiving and transmitting performed by the first device or the second device described above) in the above-described method embodiments and / or for otherwise supporting the techniques described herein; and the processing module 1801 can be for performing the processing actions (i.e., the steps of processing such as determining, obtaining, etc. performed by the first device or the second device described above) in the above-described method embodiments and / or for otherwise supporting the techniques described herein.

[0376] When the communication apparatus 1800 is configured to implement the functions of the first device described above:

[0377] In some embodiments, the transceiver module 1802 is configured to receive the indication information, the indication information indicating the frequency domain resource of the WUS, and part or all of the frequency domain resource of the WUS is located within at least one guard bandwidth, the at least one guard bandwidth being a guard bandwidth in at least one carrier bandwidth of the channel. The transceiver module 1802 is further configured to receive the WUS on the frequency domain resource of the WUS.

[0378] Optionally, the part or all of the frequency domain resource of the WUS located within the at least one guard bandwidth includes that the part or all of the frequency domain resource of the WUS is located within a first guard bandwidth, and the at least one guard bandwidth includes the first guard bandwidth.

[0379] Optionally, when the part of the frequency domain resource of the WUS is located within the first guard bandwidth, the remaining resource of the frequency domain resource of the WUS except the part is located within a first transmission bandwidth configuration, and the first guard bandwidth and the first transmission bandwidth configuration are located within a same carrier bandwidth.

[0380] Optionally, the transceiver module 1802 is further configured to transmit the first capability information, the first capability information indicating a capability of the first device to support simultaneous reception of signals on a guard bandwidth and a transmission bandwidth configuration, the guard bandwidth and the transmission bandwidth configuration being located within a same carrier bandwidth.

[0381] Optionally, the first capability information indicating the capability of the first device to support simultaneous reception of signals on the guard bandwidth and the transmission bandwidth configuration includes that the first capability information indicates whether the first device supports simultaneous reception of signals on the guard bandwidth and the transmission bandwidth configuration, or the first capability information indicates a size of the guard bandwidth and a size of the transmission bandwidth configuration, the guard bandwidth and the transmission bandwidth configuration being used for the first device to simultaneously receive signals.

[0382] Optionally, all of the frequency domain resources of the WUS are located in the first guard bandwidth; the first guard bandwidth is located in an uplink carrier bandwidth; the at least one carrier bandwidth includes the uplink carrier bandwidth; or the first guard bandwidth is located in a downlink carrier bandwidth; and the at least one carrier bandwidth includes the downlink carrier bandwidth.

[0383] Optionally, the transceiver 1802 is further configured to send second capability information, the second capability information indicating a capability of the first device to receive signals on the guard bandwidth.

[0384] Optionally, the second capability information indicating the capability of the first device to receive signals on the guard bandwidth includes: the second capability information indicating whether the first device supports receiving signals on the guard bandwidth; or the second capability information indicating a size of the guard bandwidth supported by the first device, the guard bandwidth being used by the first device to receive signals.

[0385] Optionally, the second capability information indicating the capability of the first device to receive signals on the guard bandwidth includes: the second capability information indicating a capability of the first device to receive signals on a guard bandwidth in an uplink carrier bandwidth; and / or the second capability information indicating a capability of the first device to receive signals on a guard bandwidth in a downlink carrier bandwidth.

[0386] Optionally, the part or all of the frequency domain resources of the WUS are located in the at least one guard bandwidth, including: the part or all of the frequency domain resources of the WUS are located in the first guard bandwidth and the 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 in adjacent carrier bandwidths.

[0387] Optionally, the part of the frequency domain resources of the WUS are located in the first guard bandwidth and the second guard bandwidth; the remaining resources of the frequency domain resources of the WUS, except for the part of the resources, are located in the first transmission bandwidth configuration; and the first guard bandwidth and the first transmission bandwidth configuration are located in the same carrier bandwidth.

[0388] Optionally, the part of the frequency domain resources are used to carry the WUS; the frequency domain resources of the WUS further include a third guard bandwidth and / or a fourth guard bandwidth; and the third guard bandwidth and the fourth guard bandwidth are respectively located at two ends of the part of the resources.

[0389] Optionally, a width of the third guard bandwidth is greater than or equal to C frequency domain units, or a sum of widths of intervals between the third guard bandwidth and signals on the first transmission bandwidth configuration is greater than or equal to C frequency domain units, the frequency domain resource of the WUS is located in the first guard bandwidth, the first guard bandwidth and the first transmission bandwidth configuration are located in a same carrier bandwidth, and C is a positive integer greater than or equal to 1; and / or, a width of the fourth guard bandwidth is greater than or equal to C frequency domain units, or a sum of widths of intervals between the fourth guard bandwidth and signals on the second transmission bandwidth configuration is greater than or equal to C frequency domain units, the first transmission bandwidth configuration and the second transmission bandwidth configuration are located in adjacent carrier bandwidths.

[0390] Optionally, the transceiver 1802 is further configured to send third capability information, the third capability information indicating whether the first device supports that there is no guard bandwidth in the frequency domain resource of the WUS, and / or indicating a value of C supported by the first device.

[0391] Optionally, a size of the first frequency domain unit is related to a size of the second frequency domain unit; the first frequency domain unit is any one of at least one frequency domain unit included in the frequency domain resource of the WUS, and the second frequency domain unit is one of a set of frequency domain units; the set of frequency domain units includes at least one frequency domain unit in the first transmission bandwidth configuration, the first transmission bandwidth configuration and the first guard bandwidth are located in a 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 in the first transmission bandwidth configuration and at least one frequency domain unit in the second transmission bandwidth configuration, the second transmission bandwidth configuration and the second guard bandwidth are located in a same carrier bandwidth, and the at least one guard bandwidth further includes the second guard bandwidth.

[0392] Optionally, the first frequency domain unit is less than or equal to the second frequency domain unit; the second frequency domain unit is any one of a set of frequency domain units; the set of frequency domain units includes at least one frequency domain unit used to constitute the first transmission bandwidth configuration, and the second frequency domain unit is any one of the at least one frequency domain unit used to constitute the first transmission bandwidth configuration and closest in frequency to the frequency domain resource of the WUS; or the set of frequency domain units includes at least one frequency domain unit used to constitute the first transmission bandwidth configuration and at least one frequency domain unit used to constitute the second transmission bandwidth configuration, and the second frequency domain unit is any one of at least one frequency domain unit included in the third transmission bandwidth configuration, the third transmission bandwidth configuration being a transmission bandwidth configuration closest in frequency to the frequency domain resource of the WUS among the first transmission bandwidth configuration and the second transmission bandwidth configuration.

[0393] Optionally, the first frequency domain unit is less than or equal to the second frequency domain unit; wherein the second frequency domain unit is one of the frequency domain unit set, comprising: the second frequency domain unit is any one of at least one frequency domain unit in the first part of bandwidth BWP, and the first BWP is one of at least one BWP in the frequency domain unit set.

[0394] Optionally, the first BWP is any one of at least one BWP; or the first BWP is the BWP closest to the frequency of the frequency domain resource of the WUS in at least one BWP; or the first BWP is the largest BWP in at least one BWP; or the first BWP is the smallest BWP in at least one BWP; or the first BWP is the BWP with the largest frequency domain unit in at least one BWP; or the first BWP is the BWP with the smallest frequency domain unit in at least one BWP.

[0395] When the communication device 1800 is used to implement the functions of the above-mentioned second device:

[0396] In some embodiments, the processing module 1801 is configured to determine indication information, the indication information indicating the frequency domain resource of the WUS, part or all of the frequency domain resource of the WUS being located in at least one guard bandwidth, the at least one guard bandwidth being a guard bandwidth in at least one carrier bandwidth of the channel. The transceiver module 1802 is configured to transmit the indication information.

[0397] Optionally, part or all of the frequency domain resource of the WUS is located in at least one guard bandwidth, comprising: part or all of the frequency domain resource of the WUS is located in the first guard bandwidth, and the at least one guard bandwidth comprises the first guard bandwidth.

[0398] Optionally, when part of the frequency domain resource of the WUS is located in the first guard bandwidth, the remaining resource of the frequency domain resource of the WUS except the part of the resource is located in the first transmission bandwidth configuration, and the first guard bandwidth and the first transmission bandwidth configuration are located in the same carrier bandwidth.

[0399] Optionally, the transceiver module 1802 is further configured to receive first capability information, the first capability information indicating the capability of the first device to support simultaneous reception of signals on the guard bandwidth and the transmission bandwidth configuration, the guard bandwidth and the transmission bandwidth configuration being located in the same carrier bandwidth.

[0400] Optionally, the first capability information indicating the capability of the first device to support simultaneous reception of signals on the guard bandwidth and the transmission bandwidth configuration comprises: the first capability information indicating whether the first device supports simultaneous reception of signals on the guard bandwidth and the transmission bandwidth configuration; or the first capability information indicating the size of the guard bandwidth and the size of the transmission bandwidth configuration supported by the first device, the guard bandwidth and the transmission bandwidth configuration being used for the first device to simultaneously receive signals.

[0401] Optionally, all of the frequency domain resources of the WUS are located in the first guard bandwidth; the first guard bandwidth is located in an uplink carrier bandwidth, and the at least one carrier bandwidth includes the uplink carrier bandwidth; or the first guard bandwidth is located in a downlink carrier bandwidth, and the at least one carrier bandwidth includes the downlink carrier bandwidth.

[0402] Optionally, the transceiver 1802 is further configured to receive second capability information, the second capability information indicating a capability of the first device to receive signals on a guard bandwidth.

[0403] Optionally, the second capability information indicating the capability of the first device to receive signals on the guard bandwidth includes: the second capability information indicating whether the first device supports receiving signals on the guard bandwidth; or the second capability information indicating a size of a guard bandwidth supported by the first device, the guard bandwidth being used for the first device to receive signals.

[0404] Optionally, the second capability information indicating the capability of the first device to receive signals on the guard bandwidth includes: the second capability information indicating a capability of the first device to receive signals on a guard bandwidth in an uplink carrier bandwidth; and / or the second capability information indicating a capability of the first device to receive signals on a guard bandwidth in a downlink carrier bandwidth.

[0405] Optionally, the part or all of the frequency domain resources of the WUS are located in the at least one guard bandwidth, including: the part or all of the frequency domain resources of the WUS are located in the first guard bandwidth and the second guard bandwidth, the at least one guard bandwidth including the first guard bandwidth and the second guard bandwidth, and the first guard bandwidth and the second guard bandwidth being located in adjacent carrier bandwidths.

[0406] Optionally, the part of the frequency domain resources of the WUS are located in the first guard bandwidth and the second guard bandwidth, and the remaining resources of the frequency domain resources of the WUS, except for the part of the resources, are located in the first transmission bandwidth configuration, and the first guard bandwidth and the first transmission bandwidth configuration are located in a same carrier bandwidth.

[0407] Optionally, the part of the frequency domain resources are used to carry the WUS, and the frequency domain resources of the WUS further include a third guard bandwidth and / or a fourth guard bandwidth, the third guard bandwidth and the fourth guard bandwidth being located at two ends of the part of the resources, respectively.

[0408] Optionally, a width of the third guard bandwidth is greater than or equal to C frequency domain units, or a sum of widths of intervals between the third guard bandwidth and signals on the first transmission bandwidth configuration is greater than or equal to C frequency domain units, the frequency domain resource of the WUS is located in the first guard bandwidth, the first guard bandwidth and the first transmission bandwidth configuration are located in a same carrier bandwidth, and C is a positive integer greater than or equal to 1; and / or, a width of the fourth guard bandwidth is greater than or equal to C frequency domain units, or a sum of widths of intervals between the fourth guard bandwidth and signals on the second transmission bandwidth configuration is greater than or equal to C frequency domain units, the first transmission bandwidth configuration and the second transmission bandwidth configuration are located in adjacent carrier bandwidths.

[0409] Optionally, the transceiver 1802 is further configured to receive third capability information, the third capability information indicating whether the first device supports that there is no guard bandwidth in the frequency domain resource of the WUS, and / or indicating a value of C supported by the first device.

[0410] Optionally, a size of the first frequency domain unit is related to a size of the second frequency domain unit; the first frequency domain unit is any one of at least one frequency domain unit included in the frequency domain resource of the WUS, and the second frequency domain unit is one of a set of frequency domain units; the set of frequency domain units includes at least one frequency domain unit in the first transmission bandwidth configuration, the first transmission bandwidth configuration and the first guard bandwidth are located in a 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 in the first transmission bandwidth configuration and at least one frequency domain unit in the second transmission bandwidth configuration, the second transmission bandwidth configuration and the second guard bandwidth are located in a same carrier bandwidth, and the at least one guard bandwidth further includes the second guard bandwidth.

[0411] Optionally, the first frequency domain unit is less than or equal to the second frequency domain unit; the second frequency domain unit is any one of a set of frequency domain units; the set of frequency domain units includes at least one frequency domain unit used to constitute the first transmission bandwidth configuration, and the second frequency domain unit is any one of the at least one frequency domain unit used to constitute the first transmission bandwidth configuration and closest in frequency to the frequency domain resource of the WUS; or the set of frequency domain units includes at least one frequency domain unit used to constitute the first transmission bandwidth configuration and at least one frequency domain unit used to constitute the second transmission bandwidth configuration, and the second frequency domain unit is any one of at least one frequency domain unit included in the third transmission bandwidth configuration, the third transmission bandwidth configuration being a transmission bandwidth configuration closest in frequency to the frequency domain resource of the WUS among the first transmission bandwidth configuration and the second transmission bandwidth configuration.

[0412] Optionally, the first frequency domain unit is less than or equal to the second frequency domain unit; wherein the second frequency domain unit is one of the frequency domain unit set, including: the second frequency domain unit is any one of at least one frequency domain unit in the first part of bandwidth BWP, and the first BWP is one of at least one BWP in the frequency domain unit set.

[0413] Optionally, the first BWP is any one of the at least one BWP; or, the first BWP is the BWP closest to the frequency of the frequency domain resource of the WUS in the at least one BWP; or, the first BWP is the largest BWP in the at least one BWP; or, the first BWP is the smallest BWP in the at least one BWP; or, the first BWP is the BWP with the largest frequency domain unit in the at least one BWP; or, the first BWP is the BWP with the smallest frequency domain unit in the at least one BWP.

[0414] Wherein, all the related contents of each step involved in the above method embodiments can be cited to the function description of the corresponding function module, which will not be repeated here.

[0415] In this application, the communication device (such as the first device or the second device) 1800 is presented in the form of dividing various function modules in an integrated manner. The "module" here can refer to a specific application-specific integrated circuit (ASIC), a circuit, a processor and a memory executing one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above functions.

[0416] In some embodiments, in hardware implementation, those skilled in the art can conceive that the communication device 1800 can take the form of the communication apparatus 600 shown in FIG. 6.

[0417] As an example, the function / implementation process of the processing module 1801 in FIG. 18 can be realized by invoking the computer execution instructions stored in the memory 604 by the processor 601 in the communication apparatus 600 shown in FIG. 6. The function / implementation process of the transceiver module 1802 in FIG. 18 can be realized by the communication interface 602 in the communication apparatus 600 shown in FIG. 6.

[0418] In some embodiments, when the communication device 1800 in FIG. 18 is a chip or a chip system, the function / implementation process of the transceiver module 1802 can be realized by 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 realized by the processor (or processing circuit) of the chip or chip system.

[0419] Since the communication device 1800 provided by the embodiment can execute the method, the technical effects that can be achieved by the communication device 1800 can refer to the method embodiments, which will not be described here again.

[0420] As a possible product form, the first device or the second device described in the embodiments of the present 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 circuitry, or any combination of circuitry capable of performing the various functions described throughout this application.

[0421] As another possible product form, the first device or the second device described in the embodiments of the present application can be implemented by a general bus architecture. For ease of illustration, refer to FIG. 19, which is a structural schematic diagram of a communication apparatus 1900 provided by an embodiment of the present application, the communication apparatus 1900 including a processor 1901 and a transceiver 1902. The communication apparatus 1900 can be a first device, or a chip or chip system therein; or the communication apparatus 1900 can be a second device, or a chip or module therein. FIG. 19 only shows the main components of the communication apparatus 1900. In addition to the processor 1901 and the transceiver 1902, the communication apparatus can further include a memory 1903.

[0422] Optionally, the processor 1901 is mainly used for processing communication protocols and communication data, and controlling the entire communication apparatus, executing software programs, and processing data of the software programs. The memory 1903 is mainly used for storing software programs and data. The transceiver 1902 can include radio frequency circuitry and an antenna, and the radio frequency circuitry is mainly used for conversion between baseband signals and radio frequency signals and processing of the radio frequency signals. The antenna is mainly used for transceiving radio frequency signals in the form of electromagnetic waves.

[0423] Optionally, the processor 1901, the transceiver 1902, and the memory 1903 can be connected through a communication bus.

[0424] When the communication apparatus is powered on, the processor 1901 can read the software programs in the memory 1903, interpret and execute the instructions of the software programs, and process the data of the software programs. 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 circuitry, which converts the baseband signal into a radio frequency signal and transmits the radio frequency signal in the form of electromagnetic waves through the antenna. When data is transmitted to the communication apparatus, the radio frequency circuitry receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 1901, which converts the baseband signal into data and processes the data.

[0425] In another implementation, the radio frequency circuit and the antenna can be arranged independently of a processor that performs baseband processing, for example, in a distributed scenario, the radio frequency circuit and the antenna can be arranged in a remote manner from the communication apparatus.

[0426] In some embodiments, the embodiments of the present application further provide a communication apparatus, comprising a processor, configured to implement the method in any of the preceding method embodiments. The communication apparatus can be the first device or the second device in the method embodiments.

[0427] As a possible implementation, the communication apparatus further comprises a memory. The memory is configured to store necessary computer programs and data. The computer programs can comprise instructions, and the processor can invoke the instructions in the computer programs stored in the memory to instruct the communication apparatus to execute the method in any of the preceding method embodiments. Of course, the memory can also not be in the communication apparatus.

[0428] As another possible implementation, the communication apparatus further comprises an interface circuit, which is a code / data read / write interface circuit, and is configured to receive computer execution instructions (the computer execution instructions are stored in the memory, and can be directly read from the memory or can pass through other devices) and transmit to the processor.

[0429] As yet another possible implementation, the communication apparatus further comprises a communication interface, configured to communicate with modules outside the communication apparatus.

[0430] It can be understood that the communication apparatus can be a chip or a chip system. When the communication apparatus is a chip system, the communication apparatus can be composed of a chip or can comprise a chip and other discrete devices, and the embodiments of the present application do not make specific limitations thereto.

[0431] The present application further provides a computer readable storage medium, which stores a computer program or instructions, and the computer program or instructions are executed by a computer to realize the functions of any of the preceding method embodiments.

[0432] The present application further provides a computer program product, which is executed by a computer to realize the functions of any of the preceding method embodiments.

[0433] Those skilled in the art can understand that, for the convenience and brevity of the description, the specific working processes of the systems, apparatuses and units described above can refer to the corresponding processes in the preceding method embodiments, which will not be described herein.

[0434] It can be understood that the system, apparatus and method described in the present application can also be implemented in other manners. For example, the apparatus embodiment described above is merely illustrative. For example, the division of the units is only a logical function division. There can be another division manner for the actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections can be indirect couplings or communication connections through some interfaces, devices or units, and can be in electrical, mechanical or other forms.

[0435] The units described as separate components can or can not be physically separate, i.e., can be located in one place, or can be distributed on a plurality of network units. The components shown as units can or can not be physical units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0436] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can be physically present separately, or two or more units can be integrated into one unit.

[0437] In the above embodiments, all or part can be implemented by software, hardware, firmware or any combination thereof. When implemented by a software program, all or part can be implemented in the form of a computer program product. The 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 the present 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 transferred from one computer readable storage medium to another, for example, the computer instructions can be transferred from one website, computer, server or data center to another website, computer, server or data center through a wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) manner. The computer readable storage medium can be any available medium that can be accessed by a computer or include one or more data storage devices such as servers, data centers, etc. integrated with the medium. The available medium can be a magnetic medium (such as a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state drive (SSD)), etc. In the embodiments of the present application, the computer can include the apparatus described above.

[0438] Although the application has been described in connection with various embodiments thereof, it will be understood that other modifications and variations will be apparent to those skilled in the art and can be made without departing from the scope or spirit of the application. In the claims, the word "comprising" does not exclude other components or steps not mentioned in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The use of the expression "at least one" preceding an element does not exclude the presence of a plurality of such elements. The use of the expression "one of' preceding the elements in a list of elements does not exclude the presence of at least one other such element. The use of the expression "at least one", when used to describe a list of elements, does not exclude the presence of only one such element. The use of the expression "at least one" followed by a list of elements does not exclude the presence of other such elements not listed. The use of the expression "one", "the" or "said" with reference to an element does not exclude the presence of a plurality of such elements. The use of the expression "at least one", when used in a contextual sentence, does not exclude the presence of additional and different elements of that which is already present in said context.

Claims

1. A signal transmission method, characterized by, The method is performed by a first device, and the method comprises: receiving indication information, the indication information indicating a frequency domain resource of a wake-up signal (WUS), part or all of the frequency domain resource of the WUS being located within at least one guard bandwidth, the at least one guard bandwidth being a guard bandwidth in at least one carrier bandwidth of a channel; receiving the WUS on the frequency domain resource of the WUS.

2. The method of claim 1, wherein: part or all of the frequency domain resource of the WUS is located within at least one guard bandwidth, comprising: part or all of the frequency domain resource of the WUS is located within a first guard bandwidth, the at least one guard bandwidth comprising the first guard bandwidth.

3. The method of claim 2, wherein, when part of the frequency domain resource of the WUS is located within the first guard bandwidth, the remaining resource of the frequency domain resource of the WUS other than the part is located within a first transmission bandwidth configuration, the first guard bandwidth and the first transmission bandwidth configuration being located within a same carrier bandwidth.

4. The method of claim 3, wherein, Before the receiving the indication information, the method further comprises: sending first capability information, the first capability information indicating a capability of the first device to support simultaneous reception of signals on a guard bandwidth and a transmission bandwidth configuration, the guard bandwidth and the transmission bandwidth configuration being located within a same carrier bandwidth.

5. The method of claim 4, wherein: the first capability information indicating the capability of the first device to support simultaneous reception of signals on a guard bandwidth and a transmission bandwidth configuration, comprises: the first capability information indicating whether the first device supports simultaneous reception of signals on a guard bandwidth and a transmission bandwidth configuration; or the first capability information indicating a size of a guard bandwidth and a size of a transmission bandwidth configuration supported by the first device, the guard bandwidth and the transmission bandwidth configuration being used by the first device to simultaneously receive signals.

6. The method of claim 2, wherein: all of the frequency domain resource of the WUS is located within the first guard bandwidth; the first guard bandwidth is located within an uplink carrier bandwidth, the at least one carrier bandwidth comprising the uplink carrier bandwidth; or the first guard bandwidth is located within a downlink carrier bandwidth, the at least one carrier bandwidth comprising the downlink carrier bandwidth.

7. The method of claim 6, wherein, Before the receiving the indication information, the method further comprises: sending second capability information, the second capability information indicating a capability of the first device to support reception of signals on a guard bandwidth.

8. The method of claim 7, wherein, the second capability information indicating the capability of the first device to support reception of signals on a guard bandwidth, comprises: the second capability information indicating whether the first device supports reception of signals on a guard bandwidth; or the second capability information indicating a size of a guard bandwidth supported by the first device, the guard bandwidth being used by the first device to receive signals.

9. The method according to claim 7 or 8, characterized in that, the second capability information indicating the capability of the first device to support reception of signals on a guard bandwidth, comprises: the second capability information indicating a capability of the first device to support reception of signals on a guard bandwidth in an uplink carrier bandwidth; and / or, The second capability information indicates that the first device supports the capability of receiving signals on a guard bandwidth in a downlink carrier bandwidth.

10. The method of claim 1, wherein, part or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, including: part 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 including the first guard bandwidth and the second guard bandwidth, the first guard bandwidth and the second guard bandwidth being located within adjacent carrier bandwidths.

11. The method of claim 10, wherein, part of the frequency domain resources of the WUS are located within the first guard bandwidth and the second guard bandwidth, and the remaining frequency domain resources of the WUS, other than the part of the frequency domain resources, are located within a first transmission bandwidth configuration, the first guard bandwidth and the first transmission bandwidth configuration being located within a same carrier bandwidth.

12. The method of any of claims 1-11, wherein, part of the frequency domain resources are used to carry the WUS, the frequency domain resources of the WUS further including a third guard bandwidth and / or a fourth guard bandwidth, the third guard bandwidth and the fourth guard bandwidth being located at two ends of the part of the frequency domain resources, respectively.

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

14. The method according to claim 12 or 13, characterized in that, Before the receiving the indication information, the method further includes: sending third capability information, the third capability information indicating whether the first device supports that there is no guard bandwidth within frequency domain resources of a WUS, and / or indicating a value of C supported by the first device.

15. The method of any of claims 1-14, wherein, a size of a first frequency domain unit is related to a size of a 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 the WUS, and the second frequency domain unit is one of 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 a first guard bandwidth being located within a same carrier bandwidth, the at least one guard bandwidth including the first guard 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 a second transmission bandwidth configuration, the second transmission bandwidth configuration being within a same carrier bandwidth as a second guard bandwidth, the at least one guard bandwidth further including the second guard bandwidth.

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

17. The method of claim 15, wherein the first frequency domain unit is less than or equal to the second frequency domain unit; the second frequency domain unit is one of the set of frequency domain units, including: the second frequency domain unit is any one of the at least one frequency domain unit within a first bandwidth part (BWP), the first BWP being one of the at least one BWP in the set of frequency domain units.

18. A signal transmission method, characterized by, The method is performed by a second device, the method comprising: determining indication information, the indication information indicating a frequency domain resource of a wake-up signal (WUS), part or all of the frequency domain resource of the WUS being within at least one guard bandwidth, the at least one guard bandwidth being a guard bandwidth in at least one carrier bandwidth of a channel; transmitting the indication information.

19. The method of claim 18, wherein part or all of the frequency domain resource of the WUS is within the at least one guard bandwidth, including: part or all of the frequency domain resource of the WUS is within a first guard bandwidth, the at least one guard bandwidth including the first guard bandwidth.

20. The method of claim 19, wherein, when part of the frequency domain resource of the WUS is within the first guard bandwidth, the remaining resource of the frequency domain resource of the WUS, other than the part, is within a first transmission bandwidth configuration, the first guard bandwidth and the first transmission bandwidth configuration being within a same carrier bandwidth.

21. The method of claim 20, wherein transmitting the indication information includes transmitting the indication information to a first device; before the determining the indication information, the method further includes: receive first capability information, the first capability information indicating a capability of the first device to support simultaneous reception of signals on a guard bandwidth and a transmission bandwidth configuration, the guard bandwidth and the transmission bandwidth configuration being located within a same carrier bandwidth.

22. The method of claim 19, wherein, all of the frequency domain resources of the WUS are located within the first guard bandwidth; the first guard bandwidth is located within an uplink carrier bandwidth, and the at least one carrier bandwidth comprises the uplink carrier bandwidth; or the first guard bandwidth is located within a downlink carrier bandwidth, and the at least one carrier bandwidth comprises the downlink carrier bandwidth.

23. The method of claim 22, wherein, transmitting the indication information comprises transmitting the indication information to the first device; before the determining the indication information, the method further comprises: receiving second capability information, the second capability information indicating a capability of the first device to support reception of signals on a guard bandwidth.

24. The method of claim 18, wherein, part or all of the frequency domain resources of the WUS are located within at least one guard bandwidth, comprising: part 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 comprising the first guard bandwidth and the second guard bandwidth, the first guard bandwidth and the second guard bandwidth being located within adjacent carrier bandwidths.

25. The method of claim 24, wherein, when part of the frequency domain resources of the WUS are located within the first guard bandwidth and the second guard bandwidth, the remaining frequency domain resources of the WUS, other than the part, are located within a first transmission bandwidth configuration, the first guard bandwidth and the first transmission bandwidth configuration being located within a same carrier bandwidth.

26. The method of any of claims 18-25, wherein, the part of the frequency domain resources are used to carry the WUS, the frequency domain resources of the WUS further comprising a third guard bandwidth and / or a fourth guard bandwidth, the third guard bandwidth and the fourth guard bandwidth being located at two ends of the part, respectively.

27. A communications device, characterized by the communication apparatus comprises a transceiver module and a processing module, the transceiver module is configured to perform a receiving action or a transmitting action in the method of any of claims 1-17, or is configured to perform a receiving action or a transmitting action in the method of any of claims 18-26; the processing module is configured to perform a processing action in the method of any of claims 1-17, or is configured to perform a processing action in the method of any of claims 18-26.

28. A communications device, characterized by the communication apparatus comprises a processor, and the processor is configured to run a computer program or instructions to cause the communication apparatus to perform the method of any of claims 1-17, or to perform the method of any of claims 18-26.

29. The communication apparatus according to claim 28, wherein the communication apparatus further comprises a memory, and the memory stores the computer program or instructions.

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

31. A computer program product, characterised in that, The computer program product comprises computer instructions; when part or all of the computer instructions are run on a computer, cause the method of any of claims 1-17 to be performed, cause the method of any of claims 18-26 to be performed.

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