Communication method and apparatus

Abstract

A communication method and apparatus, the communication method comprising: determining a first time-frequency resource and a second time-frequency resource, wherein a duplex type corresponding to the first time-frequency resource is non-full duplex, a duplex type corresponding to the second time-frequency resource is full duplex, and the first time-frequency resource and the second time-frequency resource correspond to different mapping priorities; and sending a first signal on the basis of the first time-frequency resource and the second time-frequency resource. In the embodiments of the present application, a full-duplex time-frequency resource and a non-full-duplex time-frequency resource may respectively correspond to different mapping priorities, and signals can be sent on different time-frequency resources on the basis of different mapping priorities, thereby ensuring the reliability of signal transmission.

Description

Communication method and device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on January 5, 2024, with application number "202410026823.5" and invention name "Communication Method and Device", the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communications, and in particular to communication methods and devices. Background Art

[0003] Performance requirements for communication reliability, latency, and other aspects have gradually become key considerations in communication scenarios. For example, ultra-reliability low latency communication (URLLC) is one of the three major application scenarios for the fifth-generation (5G) communication system. As a breakthrough for the mobile communications industry to enter vertical industries, URLLC is crucial for widespread application in areas such as autonomous driving, industrial manufacturing, connected vehicles, and smart grids. It has also been comprehensively enhanced in Release 16 of the 3rd Generation Partnership Project (3GPP) New Radio (NR).

[0004] At present, how to ensure the needs of corresponding services in different communication scenarios has become an urgent problem that needs to be solved. Summary of the Invention

[0005] The embodiments of the present application provide a communication method and apparatus, in which different time-frequency resources can correspond to different mapping priorities, thereby improving the reliability of signal transmission.

[0006] To achieve the above objectives, this application adopts the following technical solutions:

[0007] In a first aspect, a communication method is provided, comprising: determining a first time-frequency resource and a second time-frequency resource. The duplex type corresponding to the first time-frequency resource is non-full-duplex, the duplex type corresponding to the second time-frequency resource is full-duplex, and the first time-frequency resource and the second time-frequency resource have different mapping priorities. A first signal is sent based on the first time-frequency resource and the second time-frequency resource. For example, the first signal may be mapped to the first time-frequency resource and the second time-frequency resource corresponding to a first channel. The first channel may be a communication channel for transmitting the first signal.

[0008] In the embodiment of the present application, different mapping priorities may be assigned to full-duplex time-frequency resources and non-full-duplex time-frequency resources, respectively. Signals may be sent on different time-frequency resources based on different mapping priorities, thereby ensuring reliability of signal transmission.

[0009] In one possible design, the first signal includes at least one of the following: a demodulation reference signal (DMRS); and a data signal.

[0010] The embodiments of the present application provide multiple possible forms of the first signal, which can ensure the reliability of corresponding types of signal transmission in different scenarios.

[0011] In one possible design, the first time-frequency resource and the second time-frequency resource have different mapping priorities, which is reflected in at least one of the following ways: DMRS is mapped on the first time-frequency resource using a first mapping method, and the DMRS is mapped on the second time-frequency resource using a second mapping method, and the mapping priority corresponding to the first mapping method is different from the mapping priority corresponding to the second mapping method. The mapping priority of the data signal mapped on the first time-frequency resource is different from the mapping priority of the data signal mapped on the second time-frequency resource.

[0012] In the embodiments of the present application, different mapping priorities can be assigned to different types of signals on full-duplex time-frequency resources and non-full-duplex time-frequency resources. Thus, based on different types of signals, corresponding mapping methods are adopted for transmission on full-duplex time-frequency resources and non-full-duplex time-frequency resources, thereby ensuring the reliability of transmission of the corresponding types of signals.

[0013] In one possible design, the mapping priority corresponding to the first mapping method is different from the mapping priority corresponding to the second mapping method, which is reflected in at least one of the following ways: the density of the resources occupied by the DMRS in the first time-frequency resource is less than the density of the resources occupied by the DMRS in the second time-frequency resource; or, the time domain density of the DMRS in different time-frequency resources is the same, and the frequency domain density of the DMRS in the first time-frequency resource is less than the frequency domain density of the DMRS in the second time-frequency resource; or, the frequency domain density of the DMRS in different time-frequency resources is the same, and the time domain density of the DMRS mapped in the first time-frequency resource is less than the time domain density of the DMRS in the second time-frequency resource; or, the frequency domain density of the DMRS in the first time-frequency resource is less than the frequency domain density of the DMRS in the second time-frequency resource, and the time domain density of the DMRS in the first time-frequency resource is less than the time domain density of the DMRS in the second time-frequency resource.

[0014] The embodiments of the present application provide multiple DMRS mapping methods on different time-frequency resources. By configuring DMRS density for full-duplex time-frequency resources at a higher density than for non-full-duplex time-frequency resources, appropriate DMRS density can be used for transmission on the corresponding time-frequency resources in different scenarios. This improves the reliability of DMRS-based data signal parsing on full-duplex and non-full-duplex time-frequency resources.

[0015] In one possible design, the method further includes: sending or receiving first information. The first information is used to determine mapping modes corresponding to at least two DMRSs. The mapping modes corresponding to the at least two DMRSs include the first mapping mode and the second mapping mode, and different duplex types correspond to different mapping modes.

[0016] In an embodiment of the present application, multiple DMRS mapping modes can be configured through first information, so that appropriate mapping modes can be used for different time-frequency resources based on the first information, thereby ensuring more accurate parsing of data signals based on DMRS on different time-frequency resources. In one possible design, the first information can be carried in one or more of the following: protocol pre-definition, network configuration, high-layer signaling, or physical layer signaling.

[0017] The embodiments of the present application provide multiple ways of carrying the first information, so that an appropriate way can be selected to send the first information in different scenarios, thereby improving universality.

[0018] In one possible design, the protocol predefines the mapping method corresponding to the duplex type; or, the first information is also used to indicate the duplex type corresponding to the mapping method; or, the method further includes: sending or receiving second information, and the second information is also used to indicate the duplex type corresponding to the mapping method.

[0019] The embodiments of the present application provide multiple possible forms of mapping between mapping modes and duplex types. An appropriate method can be selected to indicate the correspondence between mapping modes and duplex types in different scenarios. This allows for the use of appropriate mapping methods to map any type of signal on full-duplex and non-full-duplex time-frequency resources, ensuring reliable signal transmission.

[0020] In one possible design, the second information may be carried in one or more of the following: high-layer signaling or physical layer signaling.

[0021] The embodiments of the present application provide multiple ways of carrying the second information, so that an appropriate way can be selected to send the second information in different scenarios, thereby improving universality.

[0022] In one possible design, the first signal includes the DMRS, and the DMRS includes a first DMRS and a second DMRS. The method further includes: sending or receiving third information. The third information is used to determine a mapping method corresponding to the first DMRS. The first DMRS is mapped to the first time-frequency resource and the second time-frequency resource. Sending or receiving fourth information. The fourth information is used to determine a mapping method corresponding to the second DMRS. The second DMRS is mapped to the second time-frequency resource.

[0023] The embodiment of the present application can divide different DMRSs by mapping, and one or more DMRSs can be mapped to full-duplex time-frequency resources and non-full-duplex time-frequency resources respectively, thereby ensuring more accurate parsing of data signals based on DMRSs on different time-frequency resources.

[0024] In one possible design, the third information may be carried in one or more of the following: protocol predefinition, network configuration, high-layer signaling, or physical layer signaling.

[0025] The embodiments of the present application provide multiple ways of carrying the third information, so that an appropriate way can be selected to send the third information in different scenarios, thereby improving universality.

[0026] In one possible design, the fourth information may be carried in one or more of the following: protocol predefinition, network configuration, high-layer signaling, or physical layer signaling.

[0027] The embodiments of the present application provide multiple ways of carrying the fourth information, so that an appropriate way can be selected to send the fourth information in different scenarios, thereby improving universality.

[0028] In one possible design, the method further includes: performing rate matching or puncturing on the symmetrical time-frequency resources of the second DMRS.

[0029] The embodiment of the present application can perform rate matching or puncturing on the time-frequency resources symmetrical to the second DMRS, and can flexibly configure the usage of the resources for different transmission directions.

[0030] In one possible design, the first signal includes the DMRS, and the method further includes: sending or receiving fifth information. The fifth information is used to determine a mapping method corresponding to the DMRS. The density of resources occupied by the DMRS is a first value. The mapping method corresponding to the DMRS is reflected in the following manner: the density of resources occupied by the DMRS in the second time-frequency resource is greater than the density of resources occupied by the DMRS in the first time-frequency resource.

[0031] The embodiment of the present application can allocate different DMRS densities to different time-frequency resources while keeping the overall DMRS density unchanged, so as to ensure more accurate parsing of data signals according to the DMRS on different time-frequency resources.

[0032] In one possible design, the fifth information may be carried in one or more of the following: protocol predefinition, network configuration, high-layer signaling, or physical layer signaling.

[0033] The embodiments of the present application provide multiple ways of carrying the fifth information, so that an appropriate way can be selected to send the fifth information in different scenarios, thereby improving universality.

[0034] In one possible design, the first signal includes the data signal, and the data signal is mapped to the first time-frequency resource and the second time-frequency resource in sequence.

[0035] In the embodiment of the present application, the data signal can be preferentially mapped to the non-full-duplex time-frequency resources to ensure the reliability of the data signal transmission.

[0036] In one possible design, the data signal includes a first type of data signal and a second type of data signal, and the data priority of the first type of data signal is different from the data priority of the second type of data signal; the order in which the different data signals are mapped in sequence to the first time-frequency resources and the second time-frequency resources is determined based on the data priority.

[0037] In the embodiment of the present application, different types of data signals may have different data priorities. The mapping order of different data signals may be determined according to different data priorities to ensure the reliability of transmission of different types of data signals on non-full-duplex time-frequency resources and full-duplex time-frequency resources.

[0038] In one possible design, the first signal includes the data signal; the data signal is sent based on the first time-frequency resource and the second time-frequency resource, and at least one of the following is satisfied: the number of retransmissions corresponding to the transmission of the data signal on the second time-frequency resource is greater than the number of retransmissions corresponding to the transmission of the data signal on the first time-frequency resource; the modulation and coding scheme (MCS) used to transmit the data signal on the second time-frequency resource is smaller than the MCS used to transmit the data signal on the first time-frequency resource; the number of layers used to transmit the data signal on the second time-frequency resource is smaller than the number of layers used to transmit the data signal on the first time-frequency resource.

[0039] In the embodiment of the present application, the data signal may have different configurations on the non-full-duplex time-frequency resources and the full-duplex time-frequency resources, thereby ensuring the reliability of the data signal transmission on the corresponding time-frequency resources.

[0040] In one possible design, the different time-frequency resources are determined by any one of the following methods: protocol predefinition; division and determination based on channel measurement results.

[0041] The embodiments of the present application provide a variety of methods for determining different time-frequency resources, which can be applied to the division of time-frequency resources in different scenarios, thereby improving universality.

[0042] According to a second aspect, a communication method is provided, comprising: determining at least two time-frequency resources, wherein N of the at least two time-frequency resources correspond to different mapping priorities, where N is a positive integer greater than or equal to 2; and transmitting a first signal based on the at least two time-frequency resources.

[0043] In the embodiment of the present application, different mapping priorities may be respectively corresponded to multiple different time-frequency resources. Signals may be sent on different time-frequency resources based on the different mapping priorities, thereby ensuring the reliability of signal transmission.

[0044] In one possible design, the duplex types corresponding to M of the at least two time-frequency resources include full-duplex and non-full-duplex, and the duplex types corresponding to the other time-frequency resources other than the M of the at least two time-frequency resources include non-full-duplex; or, the duplex types corresponding to M of the at least two time-frequency resources include full-duplex, and the duplex types corresponding to the other time-frequency resources other than the M of the at least two time-frequency resources include full-duplex and non-full-duplex; or, the duplex types corresponding to M of the at least two time-frequency resources include full-duplex, and the duplex types corresponding to the other time-frequency resources other than the M of the at least two time-frequency resources include non-full-duplex. Wherein, M is a positive integer.

[0045] The embodiments of the present application provide multiple possible forms of duplex types corresponding to different time-frequency resources, so that signals can be sent on time-frequency resources of any possible duplex type according to the mapping priority of the time-frequency resources, thereby ensuring the reliability of signal transmission.

[0046] In one possible design, the first signal includes at least one of the following: a demodulation reference signal DMRS; a data signal.

[0047] The embodiments of the present application provide multiple possible forms of the first signal, which can ensure the reliability of corresponding types of signal transmission in different scenarios.

[0048] In one possible design, the density of DMRS is determined based on the mapping priority corresponding to the at least two time-frequency resources.

[0049] The embodiment of the present application can determine the density of DMRS on the time-frequency resource according to the mapping priority of different time-frequency resources, thereby ensuring that the data signal can be parsed more accurately according to the DMRS on the time-frequency resource.

[0050] In one possible design, the order in which data signals are mapped onto the at least two time-frequency resources is determined based on the mapping priorities corresponding to the at least two time-frequency resources.

[0051] In the embodiment of the present application, the mapping order of data signals on different time-frequency resources can be determined according to the mapping priority to ensure the reliability of data signal transmission.

[0052] In one possible design, the data signal has a data priority. The order in which the data signal is mapped onto the at least two time-frequency resources is determined based on the data priority and the mapping priorities corresponding to the at least two time-frequency resources.

[0053] In the embodiment of the present application, different types of data signals may have different data priorities, and the mapping order of different data signals may be determined according to different data priorities to ensure the reliability of transmission of different types of data signals on different time-frequency resources.

[0054] In one possible design, the at least two time-frequency resources are obtained according to at least one of the following methods: determining the at least two time-frequency resources based on channel measurement results and at least one measurement result threshold; and obtaining the at least two time-frequency resources according to a protocol predefined method.

[0055] The embodiments of the present application provide a variety of methods for determining different time-frequency resources, which can be applied to the division of time-frequency resources in different scenarios, thereby improving universality.

[0056] In one possible design, the method further includes: sending or receiving indication information for indicating the at least two time-frequency resources.

[0057] The embodiment of the present application can indicate different time-frequency resources through indication information, and can allocate multiple time-frequency resources more flexibly.

[0058] According to a third aspect, a communication device is provided, comprising: a processing unit configured to determine a first time-frequency resource and a second time-frequency resource, wherein the duplex type corresponding to the first time-frequency resource is non-full-duplex, the duplex type corresponding to the second time-frequency resource is full-duplex, and the first time-frequency resource and the second time-frequency resource have different mapping priorities; and a communication unit configured to send a first signal based on the first time-frequency resource and the second time-frequency resource.

[0059] In the embodiment of the present application, different mapping priorities may be respectively corresponded to different time-frequency resources. Different time-frequency resources may send data based on different mapping priorities, thereby ensuring the reliability of signal transmission.

[0060] In one possible design, the first signal includes at least one of the following: a demodulation reference signal DMRS; a data signal.

[0061] In one possible design, the first time-frequency resource and the second time-frequency resource have different mapping priorities, which is reflected in at least one of the following ways: DMRS is mapped on the first time-frequency resource using a first mapping method, and the DMRS is mapped on the second time-frequency resource using a second mapping method, and the mapping priority corresponding to the first mapping method is different from the mapping priority corresponding to the second mapping method. The mapping priority of the data signal mapped on the first time-frequency resource is different from the mapping priority of the data signal mapped on the second time-frequency resource.

[0062] In one possible design, the mapping priority corresponding to the first mapping method is different from the mapping priority corresponding to the second mapping method, which is reflected in at least one of the following ways: the density of the resources occupied by the DMRS in the first time-frequency resource is less than the density of the resources occupied by the DMRS in the second time-frequency resource; or, the time domain density of the DMRS in different time-frequency resources is the same, and the frequency domain density of the DMRS in the first time-frequency resource is less than the frequency domain density of the DMRS in the second time-frequency resource; or, the frequency domain density of the DMRS in different time-frequency resources is the same, and the time domain density of the DMRS mapped in the first time-frequency resource is less than the time domain density of the DMRS in the second time-frequency resource; or, the frequency domain density of the DMRS in the first time-frequency resource is less than the frequency domain density of the DMRS in the second time-frequency resource, and the time domain density of the DMRS in the first time-frequency resource is less than the time domain density of the DMRS in the second time-frequency resource.

[0063] In one possible design, the communication unit is further configured to send or receive first information. The first information is used to determine mapping modes corresponding to at least two DMRSs. The mapping modes corresponding to the at least two DMRSs include the first mapping mode and the second mapping mode, and different duplex types correspond to different mapping modes.

[0064] In one possible design, the first information may be carried in one or more of the following: protocol predefinition, network configuration, high-layer signaling, or physical layer signaling.

[0065] In one possible design, the protocol predefines the mapping method corresponding to the duplex type; or, the first information is also used to indicate the duplex type corresponding to the mapping method; or, the method further includes: sending or receiving second information, and the second information is also used to indicate the duplex type corresponding to the mapping method.

[0066] In one possible design, the second information may be carried in one or more of the following: high-layer signaling or physical layer signaling.

[0067] In one possible design, the first signal includes the DMRS, and the DMRS includes a first DMRS and a second DMRS. The communication unit is further configured to: send or receive third information. The third information is used to determine a mapping method corresponding to the first DMRS. The first DMRS is mapped to the first time-frequency resource and the second time-frequency resource. Send or receive fourth information. The fourth information is used to determine a mapping method corresponding to the second DMRS. The second DMRS is mapped to the second time-frequency resource.

[0068] In one possible design, the third information may be carried in one or more of the following: protocol predefinition, network configuration, high-layer signaling, or physical layer signaling.

[0069] In one possible design, the fourth information may be carried in one or more of the following: protocol predefinition, network configuration, high-layer signaling, or physical layer signaling.

[0070] In one possible design, the processing unit is further used to: perform rate matching or puncturing on the symmetrical time-frequency resources of the second DMRS.

[0071] In one possible design, the first signal includes the DMRS, and the communication unit sends or receives fifth information. The fifth information is used to determine a mapping method corresponding to the DMRS. The density of resources occupied by the DMRS is a first value. The mapping method corresponding to the DMRS is reflected in the following manner: the density of resources occupied by the DMRS in the second time-frequency resources is greater than the density of resources occupied by the DMRS in the first time-frequency resources.

[0072] In one possible design, the fifth information may be carried in one or more of the following: protocol predefinition, network configuration, high-layer signaling, or physical layer signaling.

[0073] In one possible design, the first signal includes the data signal, and the data signal is mapped to the first time-frequency resource and the second time-frequency resource in sequence.

[0074] In one possible design, the data signal includes a first type of data signal and a second type of data signal, and the data priority of the first type of data signal is different from the data priority of the second type of data signal; the order in which the different data signals are mapped in sequence to the first time-frequency resources and the second time-frequency resources is determined based on the data priority.

[0075] In one possible design, the first signal includes the data signal; the data signal is sent based on the first time-frequency resource and the second time-frequency resource, and at least one of the following is satisfied: the number of retransmissions corresponding to the transmission of the data signal on the second time-frequency resource is greater than the number of retransmissions corresponding to the transmission of the data signal on the first time-frequency resource; the MCS used to transmit the data signal on the second time-frequency resource is less than the MCS used to transmit the data signal on the first time-frequency resource; the number of layers used to transmit the data signal on the second time-frequency resource is less than the number of layers used to transmit the data signal on the first time-frequency resource.

[0076] In one possible design, the different time-frequency resources are determined by any one of the following methods: protocol predefinition; division and determination based on channel measurement results.

[0077] According to a fourth aspect, a communication device is provided, comprising: a processing unit configured to determine at least two time-frequency resources, wherein N of the at least two time-frequency resources correspond to different mapping priorities, where N is a positive integer greater than or equal to 2; and a communication unit configured to send a first signal based on the at least two time-frequency resources.

[0078] In the embodiment of the present application, different mapping priorities may be respectively corresponded to different time-frequency resources. Different time-frequency resources may send data based on different mapping priorities, thereby ensuring the reliability of signal transmission.

[0079] In one possible design, the duplex types corresponding to M of the at least two time-frequency resources include full-duplex and non-full-duplex, and the duplex types corresponding to the other time-frequency resources other than the M of the at least two time-frequency resources include non-full-duplex; or, the duplex types corresponding to M of the at least two time-frequency resources include full-duplex, and the duplex types corresponding to the other time-frequency resources other than the M of the at least two time-frequency resources include full-duplex and non-full-duplex; or, the duplex types corresponding to M of the at least two time-frequency resources include full-duplex, and the duplex types corresponding to the other time-frequency resources other than the M of the at least two time-frequency resources include non-full-duplex. Wherein, M is a positive integer.

[0080] In one possible design, the first signal includes at least one of the following: a demodulation reference signal DMRS; a data signal.

[0081] In one possible design, the density of DMRS is determined based on the mapping priority corresponding to the at least two time-frequency resources.

[0082] In one possible design, the order in which data signals are mapped onto the at least two time-frequency resources is determined based on the mapping priorities corresponding to the at least two time-frequency resources.

[0083] In one possible design, the data signal has a data priority. The order in which the data signal is mapped onto the at least two time-frequency resources is determined based on the data priority and the mapping priorities corresponding to the at least two time-frequency resources.

[0084] In one possible design, the at least two time-frequency resources are obtained according to at least one of the following methods: determining the at least two time-frequency resources based on channel measurement results and at least one measurement result threshold; and obtaining the at least two time-frequency resources according to a protocol predefined method.

[0085] In one possible design, the communication unit is further used to: send or receive indication information used to indicate the at least two time-frequency resources.

[0086] In a fifth aspect, a communication device is provided, comprising: at least one processor and a communication interface, wherein the communication interface is used to receive and / or send signals, and the processor is configured to enable the communication method of any of the above aspects to be executed.

[0087] In a sixth aspect, a communication device is provided. The communication device includes: at least one processor and a memory; the memory is configured to store computer instructions, and when the processor executes the instructions, the communication device executes the communication method according to any of the above aspects.

[0088] In a seventh aspect, a communication device is provided, which includes a processor for supporting a sending end to implement the functions involved in any of the above aspects.

[0089] In one possible design, the communication device also includes a memory, which is used to store program instructions and data necessary for the sending end.

[0090] In one possible design, the communication device further includes: a communication interface for receiving and / or sending signals.

[0091] In the eighth aspect, a chip system is provided, which includes a processor and an input / output port, the processor is used to implement the processing functions involved in the communication method of any aspect of the above aspects, and the input / output port is used to implement the transceiver functions involved in the communication method of any aspect of the above aspects.

[0092] In one possible design, the chip system also includes a memory, which is used to store program instructions and data for implementing the functions involved in the communication method of any of the above aspects.

[0093] The chip system may be composed of chips, or may include chips and other discrete devices.

[0094] In a ninth aspect, a communication system is provided, which includes a transmitting end for executing any method of any of the above aspects, and a receiving end for executing any method of any of the above aspects.

[0095] In a tenth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores computer instructions, which, when executed on a computer, cause the computer to execute any communication method designed in any of the above aspects.

[0096] In an eleventh aspect, a computer program product is provided, which includes a computer program or instructions, and when the computer program or instructions are run on a computer, the computer is caused to execute the communication method as designed in any of the above aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0097] FIG1 is an exemplary diagram of the architecture of a communication system provided in an embodiment of the present application;

[0098] FIG2 is a schematic diagram of channel division provided in an embodiment of the present application;

[0099] FIG3 is a schematic diagram of a channel mapping provided in an embodiment of the present application;

[0100] FIG4 is a schematic diagram of a communication scenario provided in an embodiment of the present application;

[0101] FIG5 is a schematic diagram of another communication scenario provided in an embodiment of the present application;

[0102] FIG6 is a schematic diagram of another communication scenario provided in an embodiment of the present application;

[0103] FIG7 is a schematic diagram of another communication scenario provided in an embodiment of the present application;

[0104] FIG8 is a schematic diagram of another communication scenario provided in an embodiment of the present application;

[0105] FIG9 is a flow chart of a communication method provided in an embodiment of the present application;

[0106] FIG10 is a schematic diagram of a resource mapping provided in an embodiment of the present application;

[0107] FIG11 is a schematic diagram of another resource mapping provided in an embodiment of the present application;

[0108] FIG12 is a schematic diagram of another resource mapping provided in an embodiment of the present application;

[0109] FIG13 is a schematic diagram of another resource mapping provided in an embodiment of the present application;

[0110] FIG14 is a schematic diagram of another resource mapping provided in an embodiment of the present application;

[0111] FIG15 is a schematic diagram of another resource mapping provided in an embodiment of the present application;

[0112] FIG16 is a flow chart of another communication method provided in an embodiment of the present application;

[0113] FIG17 is a schematic diagram of time-frequency resource division provided in an embodiment of the present application;

[0114] FIG18 is a schematic diagram of a communication device provided in an embodiment of the present application;

[0115] FIG19 is a schematic diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0116] The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Ordinary technicians in this field will know that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0117] The terms "first" and "second" in the description and drawings of the embodiments of the present application are used to distinguish different objects, or to distinguish different treatments of the same object. Words such as "first" and "second" can distinguish between identical or similar items with substantially the same functions and effects. For example, the first device and the second device are merely used to distinguish different devices and do not limit their order. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit differences.

[0118] "At least one" means one or more, and "a plurality" means two or more.

[0119] In the description of the embodiments of the present application, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship, for example, A / B can represent A or B; "and / or" in the embodiments of the present application is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0120] In the description of the embodiments of this application, unless otherwise specified, "multiple" means two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or plural.

[0121] In addition, to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that the words "first" and "second" do not limit the quantity or execution order, and the words "first" and "second" do not necessarily mean different.

[0122] Furthermore, the terms "including," "having," and any variations thereof, mentioned in the description of the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not limited to the listed steps or units, but may optionally include other steps or units not listed, or may optionally include other steps or units inherent to the process, method, product, or apparatus.

[0123] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner to facilitate understanding.

[0124] It will be understood that the “embodiment” mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the embodiment of the present application. Therefore, the various embodiments in the entire specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It will be understood that in the various embodiments of the embodiment of the present application, the size of the sequence number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0125] It can be understood that in the embodiments of the present application, "when" and "if" both mean that corresponding processing will be performed under certain objective circumstances, and do not limit the time, nor do they require any judgment action when implementing, nor do they mean that there are other limitations.

[0126] It is understood that some optional features in the embodiments of the present application may, in certain scenarios, be implemented independently of other features, such as the solution on which they are currently based, to solve corresponding technical problems and achieve corresponding effects. In certain scenarios, they may also be combined with other features as needed. Accordingly, the devices provided in the embodiments of the present application may also implement these features or functions accordingly, which will not be described in detail here.

[0127] In the embodiments of the present application, unless otherwise specified, the same or similar parts between the various embodiments can refer to each other. In the various embodiments of the present application, and the various implementation methods / implementation methods / implementation methods in the various embodiments, if there is no special explanation and logical conflict, the terms and / or descriptions between different embodiments and the various implementation methods / implementation methods / implementation methods in the various embodiments are consistent and can be referenced to each other. The technical features in different embodiments and the various implementation methods / implementation methods / implementation methods in the various embodiments can be combined to form new embodiments, implementation methods, implementation methods, or implementation methods according to their inherent logical relationships. The implementation methods of the embodiments of the present application described below do not constitute a limitation on the scope of protection of the embodiments of the present application.

[0128] The collection, storage, use, processing, transmission, provision, and disclosure of user personal information in the technical solutions of the embodiments of this application are in compliance with relevant laws and regulations and do not violate public order and good morals. For example, in the technical solutions of the embodiments of this application, the processing of user personal information is performed with the user's authorization, which is explained here and will not be repeated below.

[0129] FIG1 is an example diagram of the architecture of a communication system provided in an embodiment of the present application.

[0130] As shown in FIG. 1 , the communication system involved in the embodiment of the present application may include at least one terminal 110 and a network device 120 .

[0131] Terminal 110 and network device 120 communicate wirelessly. Network device 120 may be a wireless access network device. Terminals and wireless access network devices may be connected to each other via wired or wireless means. Figure 1 is merely a schematic diagram. The communication system may also include other network devices, such as wireless relay devices, wireless backhaul devices, and core network devices, which are not shown in Figure 1. The connection relationships between devices are not limited to the methods listed above.

[0132] The radio access network device may be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNodeB / gNB) in a 5G mobile communication system, a next generation base station in a sixth generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system; it may also be a module or unit that performs some of the functions of a base station, for example, a centralized unit (CU) or a distributed unit (DU). The radio access network device may be a macro base station, a micro base station, an indoor station, a relay node, a donor node, etc. In other embodiments, the radio access network device may also be an access network device in an open RAN (O-RAN). In O-RAN, the CU may be referred to as an open CU (O-CU), the DU may be referred to as an open DU (O-DU), and the RU may be referred to as an open RU (O-RU). The embodiments of the present application do not limit the specific technologies and device forms used by the wireless access network equipment. The wireless access network equipment is sometimes referred to as the network equipment. For ease of description, the following description uses a base station as an example of the wireless access network equipment.

[0133] A terminal may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminal devices can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, etc. Terminal devices can be mobile phones, tablet computers, computers with wireless transceiver functions, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal devices.

[0134] Base stations and terminals can be fixed or mobile. They can be deployed on land, indoors or outdoors, handheld or vehicle-mounted; on water; or in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of base stations and terminal devices.

[0135] Communication between base stations and terminals, between base stations, and between terminals can be carried out through authorized spectrum, unauthorized spectrum, or both; communication can be carried out through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0136] In an embodiment of the present application, the function of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem including a base station function. The control subsystem including the base station function here may be a control center in the application scenarios of the above-mentioned terminal devices such as smart grid, industrial control, intelligent transportation, smart city, etc. The function of the repeater may also be performed by a module (such as a chip or a modem) in the repeater, or by a device including a relay function. The function of the terminal may also be performed by a module (such as a chip or a modem) in the terminal, or by a device including a terminal function.

[0137] A wireless communication system includes communication devices, which can communicate wirelessly using air interface resources. Communication devices can include network devices and terminal devices. Network devices can also be referred to as base station devices. Air interface resources can include at least one of time domain resources, frequency domain resources, code resources, and spatial resources. Communication devices can also be referred to as communication devices.

[0138] The solutions provided in the embodiments of this application can be applied to wireless communications between communication devices. Wireless communications can include wireless communications between network devices and terminals, wireless communications between network devices, and wireless communications between terminals. In the embodiments of this application, the term "wireless communications" can also be simply referred to as "communication," which can also be described as "data transmission," "information transmission," or "transmission."

[0139] The embodiments of the present application can be used for possible communication links such as uplink (UL), downlink (DL), access link, backhaul link, sidelink (SL), etc., and the embodiments of the present application are not limited here. From the perspective of business scenarios, the embodiments of the present application are applicable to a variety of scenarios, such as extended reality (XR) business, artificial intelligence (AI) business, large-capacity scenarios, etc., and the embodiments of the present application are not limited here. Among them, SL can also be called side link, side line, etc., and the embodiments of the present application are not limited here.

[0140] Currently, the most prominent features of URLLC scenarios are low latency and high reliability. URLLC also has a wide range of applications, with different scenarios requiring different latency, reliability, and bandwidth. Examples include power automation (remote control, telematics, and communication), the Internet of Vehicles (IoV), and industrial manufacturing.

[0141] Compared to sub-band full-duplex (SBFD), bandwidth part-full duplex (BWP-FD) supports full-duplex within any sub-band. BWP-FD can adjust the duplex mode based on service needs, flexibly matching service and latency requirements. BWP-FD's advantage over SBFD is that it increases uplink bandwidth without sacrificing downlink bandwidth. It is suitable for URLLC scenarios.

[0142] For example, Figure 2 shows a possible frequency band division method. Referring to Figure 2, some frame structures may include full-duplex areas and non-full-duplex areas. For example, the sub-band corresponding to the white area in the figure may be full-duplex (full duplex, FD), and the sub-band corresponding to the slash-filled area may be non-full duplex (non FD). In some examples, non-full-duplex may also be called half-duplex. The non-full-duplex area can be used for uplink or downlink depending on the situation, such as the slashed areas in different directions in Figure 2. For example, the slashed area from the upper right to the lower left can indicate that it is used for downlink; the slashed area from the upper left to the lower right can indicate that it is used for uplink. Of course, the non-full-duplex area can be arbitrarily adjusted for uplink or downlink according to actual conditions. Figure 2 is only an example of one possibility, and the embodiments of the present application do not limit this.

[0143] A full-duplex region, also known as a full-duplex time-frequency resource, allows signals to be transmitted simultaneously in both directions of a communication link, effectively creating two channels. Both the transmitting and receiving ends of the communication link have independent signal transmission and reception capabilities. For example, a full-duplex region can be used for both uplink and downlink transmission, or for both directions of the same communication link.

[0144] A non-full-duplex region, also known as a half-duplex region, a non-full-duplex time-frequency resource, or a half-duplex time-frequency resource, allows signals to be transmitted in both directions of a communication link, but only in one direction at a time. Both the transmitter and receiver of the communication link have independent capabilities for receiving and transmitting signals. However, the transmitter and receiver cannot simultaneously transmit or receive signals at the same time. For example, a non-full-duplex region can be used for uplink, downlink, or one direction of the same communication link, depending on the time of day.

[0145] The embodiments of the present application can be used for BWP-FD, scenarios including non-full-duplex and full-duplex within any period of time, etc., and the embodiments of the present application are not limited here.

[0146] However, for some data related to low latency and high reliability services, it is considered that they may be mapped in both full-duplex and non-full-duplex areas. For example, as shown in Figure 3, it can be seen that the physical downlink shared channel (PDSCH) is mapped in both full-duplex and non-full-duplex areas. For the full-duplex area, there are both uplink and downlink communications, which will cause severe interference. In other words, the channel environment on this part of the time-frequency resources is very poor. It can be understood that Figure 3 only shows the situation of PDSCH, and the same applies to other uplink channels or downlink channels. If the current signal mapping method is adopted, the reliability of the signal communication process will not be met due to severe interference in some areas.

[0147] Therefore, the present application provides a communication method, which can correspond to different mapping priorities for different time-frequency resources, thereby improving the reliability of signal transmission.

[0148] The embodiments of the present application can be applied to a variety of communication scenarios. The following describes possible scenarios in which the embodiments of the present application can be applied.

[0149] FIG4 is a schematic diagram of a communication scenario provided in an embodiment of the present application.

[0150] As shown in FIG4 , embodiments of the present application can be applied to communication scenarios such as satellite communications. This scenario may include a satellite 220 and a terminal 210. Terminal 210 may be a terminal-type network element, such as terminal 110 in FIG1 . Satellite 220 may provide communication services for terminal 210. Satellite 220 transmits downlink data to terminal 210, where the downlink data may be encoded using channel coding techniques. The encoded data is then constellation-modulated and transmitted to terminal 210. Terminal 210 may transmit uplink data to satellite 220, where the uplink data may also be encoded using channel coding techniques. The encoded data is then constellation-modulated and transmitted to satellite 220.

[0151] For another example, Figure 5 is a schematic diagram of another communication scenario provided by an embodiment of the present application. Referring to Figure 5 , similar to Figure 4 , the difference is that satellite 220 can also communicate with network device 230. Network device 230 can be similar to network device 120 shown in Figure 1 . In Figure 5 , when satellite 220 communicates with terminal 210, satellite 220 can be considered a network device. Conversely, when satellite 220 communicates with network device 230, satellite 220 can be considered a terminal.

[0152] In some examples, satellite 220 can be a drone, a hot air balloon, a low-orbit satellite, a medium-orbit satellite, a high-orbit satellite, etc., or it can be a non-ground base station, non-ground equipment, etc., which is not limited in the embodiments of the present application.

[0153] FIG6 is a schematic diagram of another communication scenario provided in an embodiment of the present application.

[0154] As shown in Figure 6, this scenario can represent intersatellite communication between satellites. Satellite 310 can be either Satellite A or Satellite B. Satellite 310 can be the same as Satellite 220 in Figures 4 and 5. Satellite 310 can include independent communication subsystems 311 and acquisition, pointing, and tracking (APT) subsystems 312. Communication subsystem 311 is responsible for information exchange between satellites and can be considered the core of the intersatellite communication system. APT subsystem 312 is responsible for acquisition, pointing, and tracking. Acquisition can be determining the direction of incoming signals; alignment can be adjusting the transmit beam to aim in the receiving direction; and tracking can be considered the continuous adjustment of alignment and acquisition throughout the communication process. Communication subsystem 311 can include transceiver antennas 3111, and APT subsystem 312 can include APT transceiver modules 3121.

[0155] Intersatellite communication systems require high confidentiality and transmission rates while minimizing channel attenuation and interference. Real-time adjustment of the APT is necessary to continuously adapt to potential environmental changes. Currently, APT subsystems 312 are typically optical systems, which are difficult to align, often requiring mechanical pointing adjustments. Currently, most communication subsystems 311 are also optical, though some operate in the microwave band. Most utilize a single high-gain antenna.

[0156] In some embodiments, the embodiments of the present application may be applicable to the cellular communication scenario shown in Figure 1. In a cellular communication system, it may generally be composed of multiple cells. Each cell may include a base station (BS). The base station may provide services to multiple mobile stations (MS). Among them, the base station may include a baseband unit (BBU) and a remote radio unit (RRU). The BBU and RRU may be placed in different places, for example, the RRU is placed in an area with high traffic volume, and the BBU is placed in a central computer room. Of course, the BBU and RRU may also be placed in the same computer room. Alternatively, the BBU and RRU may also be different components under a rack.

[0157] In some examples, the communication scenario shown in Figure 1 may be applicable to, but not limited to, narrowband Internet of Things (NB-IoT), global system for mobile communications (GSM), enhanced data rate for global system for mobile communications evolution (EDGE), wideband code division multiple access (WCDMA), code division multiple access 2000 (CDMA2000), time division-synchronization code division multiple access (TD-SCDMA), long term evolution (LTE), and three major application scenarios of next-generation mobile communication systems: enhanced mobile broadband (eMBB), URLLC, and enhanced machine-type communication (eMTC).

[0158] FIG7 is a schematic diagram of another communication scenario provided in an embodiment of the present application.

[0159] The scenario shown in FIG7 may include a terminal 410 and a television 420. Terminal 420 may be similar to terminal 110 in FIG1 and terminal 210 in FIG4 and FIG5. The scenario shown in FIG7 may be considered as a scenario in which terminal 410 performs wireless screen projection, virtual reality (VR) gaming, or the like through television 420.

[0160] FIG8 is a schematic diagram of another communication scenario provided in an embodiment of the present application.

[0161] The communication scenario shown in Figure 8 can be an integrated access and backhaul (IAB) communication scenario. For example, the IAB communication scenario may include a terminal 510, an IAB node 520, and an IAB doner 530. The IAB doner may also be referred to as an IAB parent node. The terminal 510 is similar to the terminal 110 in Figure 1, the terminal 210 in Figures 4 and 5, and the terminal 420 in Figure 7. The communication link between the terminal 510 and the IAB node can be referred to as an access link (AL), and the communication link between the IAB node 520 and the IAB doner 530 can be referred to as a backhaul link (BL).

[0162] It can be understood that the embodiments of the present application can be applicable to any of the scenarios mentioned above, and of course can also include other possible communication scenarios, which are not limited in the embodiments of the present application.

[0163] FIG9 is a flow chart of a communication method provided in an embodiment of the present application.

[0164] As shown in FIG9 , the communication process can be applied to, but not limited to, the communication scenarios shown in FIG1 and FIG4 to FIG8 . The method can be applied to the sending end. The sending end can be any possible device in the above-mentioned scenarios, such as a terminal, a network device, a satellite, an IAB node, an IAB host node, etc., which is not limited in the embodiments of the present application. The method can include the following steps:

[0165] S101: A transmitting end determines a first time-frequency resource and a second time-frequency resource.

[0166] In some embodiments, the transmitting end may determine a first time-frequency resource and a second time-frequency resource. The mapping priorities corresponding to the first time-frequency resource and the second time-frequency resource are different. In some examples, the duplex type corresponding to the first time-frequency resource may be non-full-duplex, and the duplex type corresponding to the second time-frequency resource may be full-duplex.

[0167] In some examples, the first time-frequency resource and the second time-frequency resource may be time-frequency resources corresponding to a first channel. The first channel may be considered a communication channel for transmitting a first signal. The first signal is a signal to be transmitted by a transmitter. For example, the first signal may be mapped to the first time-frequency resource and the second time-frequency resource corresponding to the first channel.

[0168] In some embodiments, the first signal may be a demodulation reference signal (DMRS).

[0169] In some embodiments, the first signal may be a data signal.

[0170] In some embodiments, the first signal may be a DMRS and a data signal.

[0171] The embodiments of the present application provide multiple possible forms of the first signal, which can ensure the reliability of corresponding types of signal transmission in different scenarios.

[0172] S102: The transmitting end sends a first signal based on the first time-frequency resource and the second time-frequency resource.

[0173] In some embodiments, the transmitting end may send the first signal according to the first time-frequency resource and the second time-frequency resource determined in S101.

[0174] For example, the transmitting end may map the first signal onto the first time-frequency resource and the second time-frequency resource. The transmitting end may send the mapped first signal to the receiving end based on the first time-frequency resource and the second time-frequency resource. The receiving end is a device that receives the first signal. For example, it may be any possible device in the communication scenarios shown in Figures 1 and 4 to 8, such as a terminal, a network device, a satellite, an IAB node, an IAB host node, etc., and the embodiments of the present application are not limited thereto.

[0175] In some examples, the first signal can be mapped to part or all of the resources in the first time-frequency resource, and can be mapped to part or all of the resources in the second time-frequency resource. For example, the first signal can be mapped to part of the resources in the first time-frequency resource and part of the resources in the second time-frequency resource; or the first signal can be mapped to part of the resources in the first time-frequency resource and all of the resources in the second time-frequency resource; or the first signal can be mapped to all of the resources in the first time-frequency resource and part of the resources in the second time-frequency resource; or the first signal can be mapped to all of the resources in the first time-frequency resource and all of the resources in the second time-frequency resource.

[0176] In the embodiment of the present application, different mapping priorities may be assigned to full-duplex time-frequency resources and non-full-duplex time-frequency resources, respectively. Signals may be sent on different time-frequency resources based on different mapping priorities, thereby ensuring reliability of signal transmission.

[0177] In the communication method provided in the embodiment of the present application, different mapping priorities can be respectively corresponded to different time-frequency resources for different types of signals to ensure the reliability of transmission of corresponding types of signals on different time-frequency resources. Taking the first time-frequency resource and the second time-frequency resource as an example, the first time-frequency resource and the second time-frequency resource have different mapping priorities, which are reflected in at least one of the following ways: DMRS is mapped on the first time-frequency resource using a first mapping method, and DMRS is mapped on the second time-frequency resource using a second mapping method, and the mapping priority corresponding to the first mapping method is different from the mapping priority corresponding to the second mapping method; the mapping priority of the data signal mapped on the first time-frequency resource is different from the mapping priority of the data signal mapped on the second time-frequency resource.

[0178] In some embodiments, the first time-frequency resource and the second time-frequency resource have different mapping priorities, which can be manifested as: DMRS is mapped on the first time-frequency resource using a first mapping method, and DMRS is mapped on the second time-frequency resource using a second mapping method.

[0179] For example, considering the different mapping priorities of the first time-frequency resource and the second time-frequency resource, different mapping methods can be used to map the DMRS to the first time-frequency resource and the second time-frequency resource. In other words, different mapping methods can be selected based on the mapping priorities of different time-frequency resources, so that the DMRS can be mapped to the corresponding time-frequency resource based on the appropriate mapping method.

[0180] In some embodiments, the first time-frequency resource and the second time-frequency resource have different mapping priorities, which can be manifested as: the mapping priority of the data signal mapped on the first time-frequency resource is different from the mapping priority of the data signal mapped on the second time-frequency resource.

[0181] For example, considering that the mapping priorities of the first time-frequency resource and the second time-frequency resource are different, the data signal can be mapped onto the first time-frequency resource and the second time-frequency resource based on the mapping priority. For example, the data signal can be preferentially mapped onto a time-frequency resource with a certain mapping priority. For another example, certain types of data signals can be preferentially mapped, and so on.

[0182] In some embodiments, the first time-frequency resource and the second time-frequency resource have different mapping priorities, which can be manifested as: DMRS is mapped to the first time-frequency resource using a first mapping method, and DMRS is mapped to the second time-frequency resource using a second mapping method. In addition, the mapping priority of the data signal mapped to the first time-frequency resource is different from the mapping priority of the data signal mapped to the second time-frequency resource.

[0183] In the embodiments of the present application, different mapping priorities can be assigned to different types of signals on full-duplex time-frequency resources and non-full-duplex time-frequency resources. Thus, based on different types of signals, corresponding mapping methods are adopted for transmission on full-duplex time-frequency resources and non-full-duplex time-frequency resources, thereby ensuring the reliability of transmission of the corresponding types of signals.

[0184] As follows, the embodiment of the present application will provide a more detailed description of the mapping methods of different types of first signals according to the type of the first signal:

[0185] Scenario 1: The first signal is DMRS.

[0186] In the communication method provided in the embodiment of the present application, for the first signal being DMRS, the density of mapping DMRS on the first time-frequency resource and the second time-frequency resource can be flexibly set to ensure that the data signal can be accurately parsed based on DMRS even on time-frequency resources with more severe interference. As a possible way, the mapping priority corresponding to the first mapping method of DMRS on the first time-frequency resource is different from the mapping priority corresponding to the second mapping method of DMRS on the second time-frequency resource, which can be specifically reflected in at least one of the following ways: the density of resources occupied by DMRS in the first time-frequency resource is less than the density of resources occupied by DMRS in the second time-frequency resource; or, the time domain density of DMRS in different time-frequency resources is the same, and the frequency domain density of DMRS in the first time-frequency resource is less than the frequency domain density of DMRS in the second time-frequency resource; or, the frequency domain density of DMRS in different time-frequency resources is the same, and the time domain density of DMRS mapped in the first time-frequency resource is less than the time domain density of DMRS in the second time-frequency resource; or, the frequency domain density of DMRS in the first time-frequency resource is less than the frequency domain density of DMRS in the second time-frequency resource, and the time domain density of DMRS in the first time-frequency resource is less than the time domain density of DMRS in the second time-frequency resource.

[0187] For different implementations, the embodiments of the present application will be described in more detail with different situations.

[0188] Case 1:

[0189] In some embodiments, for the first signal being DMRS, the mapping priority corresponding to the first mapping method is different from the mapping priority corresponding to the second mapping method, which can be manifested as: the density of DMRS occupied resources in the first time-frequency resource is less than the density of DMRS occupied resources in the second time-frequency resource. The density of DMRS occupied resources can be understood as the ratio between the number of resource elements (REs) occupied by DMRS and the total number of REs occupied by the resource within a certain resource. Alternatively, the density of DMRS occupied resources can be understood as the density of DMRS occupied time domain resources, or can also be understood as the density of DMRS occupied frequency domain resources, or can also be understood as the density of DMRS occupied frequency domain resources and the density of DMRS occupied time domain resources, which is not limited in the embodiments of the present application.

[0190] In various embodiments of the present application, the density of DMRS occupied time domain resources may also be referred to as DMRS time domain density, which may represent the ratio between the number of symbols containing DMRS within a certain resource and the total number of symbols occupied by the resource. The density of DMRS occupied frequency domain resources may also be referred to as DMRS frequency domain density, which may represent the ratio between the number of frequency domain REs containing DMRS in a symbol and the total number of REs in the symbol within a certain frequency domain resource. Of course, the above ratio may be expressed in the form of a fraction, decimal, percentage, or any other possible form, and is not limited in the embodiments of the present application.

[0191] For example, the density of DMRS in the first time-frequency resource can be lower than the density of DMRS in the second time-frequency resource. This results in a higher DMRS share in the second time-frequency resource. Considering that the second time-frequency resource can be in a full-duplex area and suffer from severe interference, setting a higher DMRS share helps the receiver better interpret the data transmitted in this resource.

[0192] Case 2:

[0193] In some embodiments, when the first signal is DMRS, the mapping priority corresponding to the first mapping method is different from the mapping priority corresponding to the second mapping method, which can be manifested as: the time domain density of DMRS in different time-frequency resources is the same, and the frequency domain density of DMRS in the first time-frequency resource is less than the frequency domain density of DMRS in the second time-frequency resource.

[0194] That is, the time domain density of DMRS in different time-frequency resources can be made the same, that is, the proportion of DMRS occupied by symbols in different time-frequency resources is the same. For the frequency domain, the second time-frequency resource can be given a larger frequency domain density.

[0195] For example, the time-domain density of DMRS in the first and second time-frequency resources may be the same. In the second time-frequency resource, the frequency-domain density of DMRS within one or more symbols configured with DMRS may be set to 2 / 3; in the first time-frequency resource, the frequency-domain density of DMRS within one or more symbols configured with DMRS may be set to 1 / 2. For another example, the frequency-domain density of DMRS within one or more symbols configured with DMRS may be set to 1 / 2; in the first time-frequency resource, the frequency-domain density of DMRS within one or more symbols configured with DMRS may be set to 1 / 3. In some examples, the frequency-domain density of DMRS within each symbol configured with DMRS in the second time-frequency resource may be greater than the frequency-domain density of DMRS within each symbol configured with DMRS in the first time-frequency resource. Of course, if the frequency-domain density within only some DMRS symbols in the second time-frequency resource is greater than the frequency-domain density of DMRS within some DMRS symbols in the first time-frequency resource, then the frequency-domain density of DMRS in the entire second time-frequency resource must be greater than the frequency-domain density of DMRS in the entire first time-frequency resource.

[0196] In some examples, refer to the resource mapping diagram shown in Figure 10. It can be seen that the symbols occupied by DMRS on non-full-duplex time-frequency resources are the same as the symbols occupied by DMRS on full-duplex time-frequency resources, that is, the time domain density of DMRS in different time-frequency resources is guaranteed to be the same. For non-full-duplex time-frequency resources, the frequency domain density of DMRS is 1 / 2, that is, 1 RE is mapped to DMRS for every 2 REs. For non-full-duplex time-frequency resources, the frequency domain density of DMRS is 2 / 3, that is, 2 REs are mapped to DMRS for every 3 REs. Assuming that the first time-frequency resource is the time-frequency resource corresponding to non-full-duplex and the second time-frequency resource is the time-frequency resource corresponding to full-duplex, it is obvious that the frequency domain density of DMRS in the first time-frequency resource is less than the frequency domain density of DMRS in the second time-frequency resource.

[0197] The physical channel involved in each embodiment of the present application may represent the first channel corresponding to the first signal to be sent. The first channel may be a physical uplink channel, a physical downlink channel, or a physical sidelink channel; the first channel may be a control channel or a shared channel. For example, the physical channel may be PDSCH, physical downlink control channel (physical downlink control channel, PDCCH), physical uplink shared channel (physical uplink shared channel, PUSCH), physical uplink control channel (physical uplink control channel, PUCCH), physical sidelink shared channel (physical sidelink shared channel, PSSCH), physical sidelink control channel (physical sidelink control channel, PSCCH). For another example, the physical channel may also be physical reception link control channel (physical reception link shared channel, PRxCCH), physical reception link shared channel (physical reception link shared channel, PRxSCH), physical transmission link control channel (physical transmission link control channel, PTxCCH), physical transmission link shared channel (physical transmission link shared channel, PTxSCH), etc., which is not limited in the present application.

[0198] PRxCCH and PTxCCH can be physical layer control channels. PRxCCH can be a physical layer control channel received by a terminal, while PTxCCH can be a physical layer control channel transmitted by a terminal. PRxSCH and PTxSCH can be physical layer data channels. PRxSCH can be a physical layer data channel received by a terminal, while PTxSCH can be a physical layer data channel transmitted by a terminal.

[0199] It is understandable that, considering that the second time-frequency resource can be a full-duplex area, interference is more severe. While ensuring that the time-domain density of the DMRS remains unchanged, different frequency-domain densities are configured for the DMRS on different time-frequency resources. For example, the frequency-domain density of the DMRS on the second time-frequency resource is higher than that on the first time-frequency resource, which facilitates the receiving end to better interpret the data transmitted in this frequency band.

[0200] Case 3:

[0201] In some embodiments, when the first signal is DMRS, the mapping priority corresponding to the first mapping method is different from the mapping priority corresponding to the second mapping method, which can be manifested as: the frequency domain density of DMRS in different time-frequency resources is the same, and the time domain density of the mapped DMRS in the first time-frequency resource is less than the time domain density of the DMRS in the second time-frequency resource.

[0202] That is, the frequency domain density of DMRS in different time-frequency resources can be made the same, that is, the frequency domain proportion of DMRS on the symbols occupied by DMRS in different time-frequency resources is the same. For the time domain, the second time-frequency resource can be given a larger time domain density.

[0203] For example, the frequency domain density of DMRS in the first time-frequency resource and the second time-frequency resource is the same. In the second time-frequency resource, DMRS can be added to some symbols. DMRS can be added to some symbols according to different DMRS mapping types. Among them, the newly added DMRS can be considered as the DMRS that is added to the second time-frequency resource compared to the first time-frequency resource. For example, the mapping type of DMRS can be divided into mapping type A and mapping type B. Among them, mapping type A can be based on the time slot to determine a certain symbol. Mapping type B can be based on the physical channel to determine a certain symbol.

[0204] For example, if mapping type A is used to determine the newly added DMRS, it can be determined based on the time slot that the DMRS is added on the 5th, 9th, and 13th symbols in the time slot. Alternatively, it can be determined that the DMRS is added on the 6th and 10th symbols in the time slot. Alternatively, it can be determined that the DMRS is added on the 7th and 11th symbols in the time slot.

[0205] For example, if mapping type B is used to determine the newly added DMRS, it is possible to determine to add a new DMRS on the second symbol in the time-frequency resource based on the time-frequency resource corresponding to the physical channel to be transmitted. Alternatively, it is possible to determine to add a new DMRS on the second and third symbols in the time-frequency resource. Alternatively, it is possible to determine to add a new DMRS on the middle symbol in the time-frequency resource. Alternatively, it is possible to determine to add a new DMRS on the last symbol in the time-frequency resource. Among them, the middle symbol in the time-frequency resource, assuming that the time-frequency resource corresponding to the physical channel occupies 5 symbols, the third symbol can be the middle symbol; assuming that the time-frequency resource corresponding to the physical channel occupies 10 symbols, the fifth and sixth symbols can be the middle symbols.

[0206] It can be understood that for mapping type A, the symbol position of the newly added DMRS is determined based on the time slot; for mapping type B, the symbol position of the newly added DMRS is determined based on the time-frequency resources corresponding to the physical channel.

[0207] In some examples, refer to the resource mapping diagram shown in Figure 11. Similar to Figure 10, time-frequency resources can be divided into full-duplex time-frequency resources and non-full-duplex time-frequency resources. Among them, whether it is full-duplex time-frequency resources or non-full-duplex time-frequency resources, on the first symbol in the physical channel, the frequency domain density of DMRS is 1 / 2, that is, 1 RE is mapped to DMRS in every 2 REs. For full-duplex time-frequency resources, it can be seen that DMRS is added to the third symbol in the physical channel. The frequency domain density of the newly added DMRS on this symbol can also be 1 / 2. In other words, although the symbol positions occupied by DMRS on full-duplex time-frequency resources are more than the symbol positions occupied by DMRS on non-full-duplex time-frequency resources, the frequency domain density is the same.

[0208] In some examples, the frequency domain density of DMRS in different time-frequency resources is the same, which can be the same DMRS frequency domain density and the same DMRS frequency domain location. Referring to Figure 12, on a full-duplex time-frequency resource, the frequency domain location occupied by DMRS in the first and third symbols corresponding to the physical channel is the same. In this case, the DMRS in the third symbol does not need to be separately indicated.

[0209] In some examples, the frequency domain density of DMRS in different time-frequency resources is the same, which can be the case where the frequency domain density of DMRS is the same but the frequency domain positions of DMRS are different. For example, as shown in FIG11 , on a full-duplex time-frequency resource, the frequency domain positions occupied by DMRS on the first symbol and the third symbol corresponding to the physical channel are different. In this case, the DMRS on the third symbol can be indicated separately. For example, the starting position of the DMRS on the third symbol in the physical channel corresponding to the full-duplex time-frequency resource is indicated.

[0210] It is understandable that, considering that the second time-frequency resource can be a full-duplex area, interference is more severe. While ensuring that the frequency domain density of the DMRS remains unchanged, different time domain densities are configured for the DMRS on different time-frequency resources. For example, the time domain density of the DMRS on the second time-frequency resource is higher than that on the first time-frequency resource, which facilitates the receiving end to better parse the data transmitted in this frequency band.

[0211] Case 4:

[0212] In some embodiments, when the first signal is DMRS, the mapping priority corresponding to the first mapping method is different from the mapping priority corresponding to the second mapping method, which can be manifested as: the frequency domain density of DMRS in the first time-frequency resource is less than the frequency domain density of DMRS in the second time-frequency resource, and the time domain density of DMRS in the first time-frequency resource is less than the time domain density of DMRS in the second time-frequency resource.

[0213] That is, for the frequency domain, the second time-frequency resource may be given a larger frequency domain density. For the time domain, the second time-frequency resource may be given a larger time domain density.

[0214] Referring to Figure 13, it is equivalent to combining the solutions of Figures 10 and 11. For full-duplex time-frequency resources, a higher frequency domain density of DMRS can be assigned, such as 2 / 3. For non-full-duplex time-frequency resources, a lower frequency domain density of DMRS can be assigned, such as 1 / 2. In addition, for full-duplex time-frequency resources, the number of symbols occupied by DMRS can be greater, such as occupying the first symbol, second symbol, and third symbol corresponding to the physical channel. For non-full-duplex time-frequency resources, the number of symbols occupied by DMRS can be smaller, such as occupying the first symbol and third symbol corresponding to the physical channel. For details, please refer to the relevant descriptions in Figures 10 and 11, and the embodiments of the present application will not be repeated here.

[0215] It is worth noting that in each embodiment of the present application, DMRS can be a single symbol or a double symbol. When configuring the DMRS mapping mode, the type of DMRS symbol can be configured at the same time, such as a single symbol type or a double symbol type.

[0216] The embodiments of the present application provide multiple DMRS mapping methods on different time-frequency resources. By configuring DMRS density for full-duplex time-frequency resources at a higher density than for non-full-duplex time-frequency resources, appropriate DMRS density can be used for transmission on the corresponding time-frequency resources in different scenarios. This improves the reliability of DMRS-based data signal parsing on full-duplex and non-full-duplex time-frequency resources.

[0217] In the communication method provided in an embodiment of the present application, multiple DMRS mapping modes can be configured using first information, so that the DMRS can be mapped using an appropriate mapping mode for different time-frequency resources. For example, the method may further include: a transmitting end sending or receiving first information, where the first information is used to determine mapping modes corresponding to at least two DMRSs. The mapping modes corresponding to the at least two DMRSs include a first mapping mode and a second mapping mode, and different duplex types correspond to different mapping modes.

[0218] For example, if the transmitting end is a network device, the transmitting end can generate the first information. The transmitting end can send the first information to the terminal to configure the mapping method of the DMRS adopted by the terminal. For another example, if the transmitting end is a terminal, the transmitting end can receive the first information. For example, the first information sent by the receiving network device is received. The transmitting end can determine the mapping method used to send the DMRS based on the first information. The transmitting end can map the DMRS onto the first time-frequency resource and the second time-frequency resource according to the mapping method, and send the DMRS. It can be understood that the transmitting end involved in each embodiment of the present application refers to the device or apparatus that sends the first signal.

[0219] In some examples, the first information may be higher-layer signaling, such as radio resource control (RRC) signaling, media access control element (MAC CE), etc.

[0220] In some examples, the first information may include a mapping mode of DMRS corresponding to full-duplex and a mapping mode of DMRS corresponding to non-full-duplex. Of course, in some examples, the first information may also include a mapping mode of DMRS corresponding to a guard band.

[0221] In some examples, at least two DMRS mapping modes may be indicated in the first information in the form of DMRS parameters. Each DMRS parameter may correspond to a DMRS mapping mode. For example, different DMRS parameters may be configured in a single first information message, i.e., multiple DMRS parameters may be configured through a single high-layer signaling message, i.e., at least two DMRS mapping modes may be configured. For another example, different DMRS parameters may be configured through different first information messages, i.e., each DMRS parameter may be configured through independent high-layer signaling messages.

[0222] In some embodiments, the first information may be carried in one or more of the following: protocol predefinition, network configuration, high-layer signaling, or physical layer signaling.

[0223] For example, the first information is predefined by a protocol. For another example, the first information can be configured by a network device. For another example, the first information can be carried by high-layer signaling. For example, the first information is carried by RRC or MAC CE. For another example, the first information can be carried by physical layer signaling. For example, the first information is carried by downlink control information (DCI), uplink control information (UCI) or sidelink control information (SCI). For another example, the first information can be configured by a network device and carried by high-layer signaling. It can be understood that the first information can be carried or configured by any one or more of the above methods, and the embodiments of the present application are not listed here one by one.

[0224] Among them, DCI, UCI, and SCI may also be referred to as receiving control information (RxCI). For example, RxCI may be sent in PRxCCH.

[0225] Next, the embodiments of the present application will be divided into multiple situations to describe how to indicate the duplex type of different mapping methods.

[0226] Scenario A:

[0227] In some embodiments, the protocol predefines a mapping method corresponding to the duplex type.

[0228] For example, among the at least two DMRS mapping modes determined by the first information, the duplex type corresponding to each DMRS mapping mode can be determined based on protocol pre-definition. For example, the protocol pre-defines DMRS parameters used for full-duplex time-frequency resources, and the configured DMRS has a higher resource density.

[0229] For example, the first information includes two DMRS parameters, where the DMRS resource density in DMRS parameter 1 is greater than the DMRS resource density in DMRS parameter 2. The protocol predefines that full-duplex time-frequency resources use DMRS parameter 1 with a higher DMRS resource density.

[0230] For another example, the first information includes three DMRS parameters, where the density of DMRS occupied resources in DMRS parameter 1 is greater than the density of DMRS occupied resources in DMRS parameter 3, and greater than the density of DMRS occupied resources in DMRS parameter 2. The protocol may predefine that full-duplex time-frequency resources use DMRS parameter 1, which has the highest density of DMRS occupied resources. Alternatively, the protocol may predefine that full-duplex time-frequency resources use DMRS parameter 1 or DMRS parameter 3, which has a non-lowest density of DMRS occupied resources.

[0231] Case B:

[0232] In some embodiments, the first information is further used to indicate the duplex type corresponding to the mapping method.

[0233] For example, the first information may include mapping modes corresponding to at least two DMRSs, and indicate the duplex type corresponding to each DMRS mapping mode. For example, the first information may include multiple DMRS parameters, and indicate the duplex type corresponding to each DMRS parameter. For another example, the multiple first information may include multiple DMRS parameters, wherein each first information includes a DMRS parameter and indicates the duplex type corresponding to the DMRS parameter.

[0234] It can be understood that the embodiment of the present application directly indicates the duplex type corresponding to the DMRS parameters in the first information, so that the transmitting end can select appropriate DMRS parameters for DMRS mapping based on the duplex type.

[0235] Case C:

[0236] In some embodiments, the method may further include: sending or receiving second information, wherein the second information is used to indicate a duplex type corresponding to the mapping mode.

[0237] In some examples, the transmitting end may further transmit or receive second information. The second information may indicate the duplex type corresponding to different mapping methods. For example, if the transmitting end is a network device, the transmitting end may generate the second information. The transmitting end may send the second information to the terminal, so that the terminal can determine the duplex type corresponding to the mapping method of each DMRS based on the second information. For another example, if the transmitting end is a terminal, the transmitting end may receive the second information sent by the network device, and the transmitting end may determine the duplex type corresponding to the mapping method of each DMRS based on the second information.

[0238] In some examples, the second information may be physical layer signaling. For example, the second information may be DCI. For another example, the second information may be UCI. For another example, the second information may be SCI, etc.

[0239] For example, the first information includes multiple DMRS parameters but does not indicate the duplex type corresponding to each DMRS parameter. The transmitter can use the second information to indicate which DMRS parameters can be used for full-duplex time-frequency resources, or which DMRS parameters can be used for non-full-duplex time-frequency resources.

[0240] In some embodiments, the second information may be carried in one or more of the following: high-layer signaling or physical layer signaling.

[0241] For example, the second information may be carried via higher-layer signaling. For example, the second information may be carried via RRC or MAC CE. For another example, the second information may be carried via physical layer signaling. For example, the second information may be carried via DCI, UCI, or SCI. For another example, the third information may be carried via both higher-layer signaling and physical layer signaling.

[0242] The embodiments of the present application provide multiple possible forms of mapping between mapping modes and duplex types. An appropriate method can be selected to indicate the correspondence between mapping modes and duplex types in different scenarios. This allows for the use of appropriate mapping methods to map any type of signal on full-duplex and non-full-duplex time-frequency resources, ensuring reliable signal transmission.

[0243] Regarding the mapping method indicating DMRS, the embodiment of the present application can configure multiple DMRS mapping methods through the first information, so that according to the first information, appropriate mapping methods can be used for mapping for different time-frequency resources, thereby ensuring more accurate analysis of data signals according to DMRS on different time-frequency resources.

[0244] In the communication method provided in an embodiment of the present application, the first signal includes a DMRS, and the DMRS includes a first DMRS and a second DMRS. Different DMRSs can be mapped to the same or different time-frequency resources to ensure the reliability of DMRS transmission on different time-frequency resources. In a possible implementation, the method may further include: sending or receiving third information, and the third information is used to determine the mapping method corresponding to the first DMRS. The first DMRS is mapped to the first time-frequency resource and the second time-frequency resource. Sending or receiving fourth information, and the fourth information is used to determine the mapping method corresponding to the second DMRS. The second DMRS is mapped to the second time-frequency resource.

[0245] In some embodiments, the first signal may include a DMRS. The DMRS may include a first DMRS and a second DMRS. The first DMRS is mapped to the first time-frequency resource and the second time-frequency resource. For example, the first DMRS may be mapped to a full-duplex time-frequency resource, or to a non-full-duplex time-frequency resource. The second DMRS is mapped to the second time-frequency resource. For example, the second DMRS may be mapped to a full-duplex time-frequency resource.

[0246] In some examples, the transmitting end sends or receives third information, and the third information can be used to determine the mapping method corresponding to the first DMRS. For example, the third information can be RRC signaling. For example, when the transmitting end is a network device, the third information can be generated. The transmitting end can send the third information to the terminal. So that the terminal determines the mapping method of the first DMRS based on the third information. For another example, when the transmitting end is a terminal, the third information sent by the network device can be received. The transmitting end determines the mapping method of the first DMRS through the third information, and the transmitting end can map the first DMRS to the first time-frequency resource and the second time-frequency resource based on the mapping method of the first DMRS.

[0247] In some embodiments, the third information may be carried in one or more of the following: protocol pre-definition, network configuration, high-layer signaling, or physical layer signaling.

[0248] For example, the third information is configured through protocol predefinition. For another example, the third information can be configured through a network device. For another example, the third information can be carried through high-layer signaling. For example, the third information is carried through RRC or MAC CE. For another example, the third information can be carried through physical layer signaling. For example, the first information is carried through DCI, UCI or SCI. For another example, the third information can be configured through a network device and carried through high-layer signaling. It can be understood that the third information can be carried or configured through any one or more of the above methods, and the embodiments of the present application are not listed here one by one.

[0249] In some examples, the transmitting end sends or receives fourth information, and the fourth information can be used to determine the mapping method corresponding to the second DMRS. For example, the fourth information can be MAC CE, DCI signaling, UCI signaling, SCI signaling, etc. For example, when the transmitting end is a network device, the fourth information can be generated. The transmitting end can send the fourth information to the terminal. So that the terminal determines the mapping method of the second DMRS based on the fourth information. For another example, when the transmitting end is a terminal, the fourth information sent by the network device can be received. The transmitting end determines the mapping method of the second DMRS through the fourth information, and the transmitting end can map the second DMRS to the second time-frequency resource based on the mapping method of the second DMRS.

[0250] In some embodiments, the fourth information may be carried in one or more of the following: protocol pre-definition, network configuration, high-layer signaling, or physical layer signaling.

[0251] For example, the fourth information is predefined by a protocol. For another example, the fourth information can be configured by a network device. For another example, the fourth information can be carried by high-layer signaling. For example, the fourth information is carried by RRC or MAC CE. For another example, the fourth information can be carried by physical layer signaling. For example, the fourth information is carried by DCI, UCI, or SCI. For another example, the fourth information can be configured by a network device and carried by high-layer signaling. It can be understood that the fourth information can be carried or configured by any one or more of the above methods, and the embodiments of the present application are not listed here one by one.

[0252] It is understandable that the second DMRS can be considered an additional DMRS. However, it should be understood that the "additional DMRS" involved in the various embodiments of the present application refers to a DMRS added to the second time-frequency resource based on the first DMRS. In other words, the "additional DMRS" is a DMRS added to the second time-frequency resource based on the first DMRS.

[0253] Referring to the resource mapping diagram shown in Figure 14, it can be seen that the first DMRS is distributed across both full-duplex time-frequency resources and non-full-duplex time-frequency resources. The second DMRS is distributed only across the second time-frequency resources. This configuration of the DMRSs allows for a higher DMRS density in full-duplex time-frequency resources than in non-full-duplex time-frequency resources, which in turn facilitates more accurate interpretation of signals transmitted on full-duplex time-frequency resources by the receiving end.

[0254] In some embodiments, the method further includes: performing rate matching or puncturing on the time-frequency resources symmetrical to the second DMRS.

[0255] In some examples, the time-frequency resources of the second DMRS symmetry can be understood as the same time-frequency resource being used for uplink, for downlink, or for two transmission directions of the same communication link on the full-duplex time-frequency resource. The time-frequency resource being used for uplink and for downlink can be referred to as being mutually symmetrical, or the two transmission directions of the same communication link can be referred to as being mutually symmetrical. For example, for a sidelink (SL) scenario between terminals, the transmission direction of a signal sent from terminal 1 to terminal 2 and the transmission direction of a signal sent from terminal 2 to terminal 1 can be referred to as symmetrical.

[0256] Referring to Figure 14 , for the second DMRS in the full-duplex time-frequency resources, rate matching or puncturing can be performed on the symmetrical time-frequency resources. For example, taking the mutual symmetry between the uplink and downlink as an example, the uplink time-frequency resources that are symmetrical to the downlink time-frequency resources occupied by the second DMRS can be called symmetrical uplink avoidance resources. Assume that a downlink signal and an uplink signal are transmitted in the full-duplex time-frequency resources, and the downlink signal contains the second DMRS. If the time-frequency resources occupied by the uplink signal include symmetrical uplink avoidance resources, the uplink signal is rate matched or punctured on the symmetrical uplink avoidance resources.

[0257] For another example, the downlink time-frequency resources that are symmetrical to the uplink time-frequency resources occupied by the second DMRS can be referred to as symmetrical downlink avoidance resources. Assume that uplink and downlink signals are transmitted in a full-duplex region, and the uplink signal includes the second DMR. If the time-frequency resources occupied by the downlink signal include symmetrical downlink avoidance resources, the downlink signal is rate-matched or punctured on the symmetrical downlink avoidance resources. For example, in a SL scenario, assume that terminal 1 transmits signals from terminal 2 in direction 1, and that terminal 2 transmits signals from terminal 1 in direction 2, with directions 1 and 2 being symmetrical. Assume that the time-frequency resources occupied by the second DMRS are used for direction 1 and are referred to as first avoidance resources, and that the time-frequency resources occupied by the second DMRS are used for direction 2 and are referred to as second avoidance resources. For example, assume that terminal 1 transmits a signal from terminal 2 in a full-duplex region, and that the signal includes the second DMRS. If the time-frequency resources occupied by terminal 2 for transmitting signals from terminal 2 to terminal 1 include the second avoidance resources, the signal transmitted from terminal 2 to terminal 1 is rate-matched or punctured on the second avoidance resources.

[0258] For another example, assume that terminal 2 transmits a signal to terminal 1 in full-duplex time-frequency resources, and the signal includes a second DMRS. If the time-frequency resources occupied by terminal 1 for transmitting the signal to terminal 2 include a first avoidance resource, the signal transmitted from terminal 1 to terminal 2 is rate matched or punctured on the first avoidance resource.

[0259] Of course, the specific rate matching and puncturing implementation process can refer to relevant technologies, and the embodiments of the present application are not limited here.

[0260] The embodiment of the present application can perform rate matching or puncturing on the time-frequency resources symmetrical to the second DMRS, and can flexibly configure the usage of the resources for different transmission directions.

[0261] In some embodiments, the fourth information may indicate a newly added symbol position. The newly added symbol position includes a second DMRS. Similar to the scenario shown in Figure 12, the second DMRS may also be indicated by different DMRS mapping types. For example, if mapping type A is used to indicate the second DMRS, the fourth information may indicate the 5th, 9th, and 13th symbols in the time slot, indicating that the second DMRS can be mapped at this position. Of course, the fourth information may also indicate the 6th and 10th symbols in the time slot, or the 7th and 11th symbols, and the embodiments of the present application do not limit this. For another example, if mapping type B is used to indicate the second DMRS, the fourth information may indicate the 2nd symbol corresponding to the physical channel, indicating that the second DMRS can be mapped at this position. Of course, the fourth information may also indicate the 2nd and 3rd symbols corresponding to the physical channel, or indicate the symbol in the middle of the physical channel, or indicate the last symbol corresponding to the physical channel, etc., and the embodiments of the present application do not limit this.

[0262] It can be understood that the frequency domain density of the second DMRS and the first DMRS can be the same, and the frequency domain positions can be the same or different. For details, please refer to the description of the corresponding embodiment in Figure 12, and the embodiments of this application will not be repeated here.

[0263] In some embodiments, the fourth information may indicate the newly added frequency domain density and starting position. The second DMRS and the first DMRS are located on the same symbol. For example, the fourth information indicates that a DMRS density of 1 / 2, 1 / 4, 1 / 6, or 1 / 3 is newly added to the full-duplex time-frequency resources. The fourth information may also indicate a relative offset between the starting position and the 0th RB in the full-duplex area, such as an offset of 1, 2, 3, or 4, which is not limited in this embodiment of the present application.

[0264] In some embodiments, the fourth information may indicate a newly added symbol position, and may indicate a newly added frequency domain density and a starting position.

[0265] In some embodiments, the third information may be a universal configuration, and the fourth information may be considered an additional new configuration. The protocol may predefine this universal configuration for configuring the first DMRS. Physical layer signaling may use this additional new configuration for full-duplex time-frequency resource indication, and this additional new configuration may configure the second DMRS. Configuring the first and second DMRSs in the manner described in this embodiment reduces the overhead of the fourth information and allows for more flexible configuration of the second DMRS.

[0266] The embodiment of the present application can divide different DMRSs by mapping, and one or more DMRSs can be mapped to full-duplex time-frequency resources and non-full-duplex time-frequency resources respectively, thereby ensuring more accurate parsing of data signals based on DMRSs on different time-frequency resources.

[0267] In the communication method provided in the embodiment of the present application, the first signal may include DMRS. Different DMRS densities may be allocated to different time-frequency resources while keeping the overall DMRS density unchanged to ensure the reliability of DMRS transmission on different time-frequency resources. In some possible implementations, the method may further include: sending or receiving fifth information. The fifth information is used to determine the mapping method corresponding to the DMRS. The density of the resources occupied by the DMRS is the first value, and the mapping method corresponding to the DMRS is reflected in the following manner: the density of the resources occupied by the DMRS in the second time-frequency resources is greater than the density of the resources occupied by the DMRS in the first time-frequency resources.

[0268] In some embodiments, the first signal may include a DMRS. The transmitting end may further send or receive fifth information. The fifth information may be used to determine a mapping method corresponding to the DMRS.

[0269] For example, the density of DMRS occupied resources is the first value. It can be understood that the overall density of DMRS occupied resources remains unchanged, that is, for the physical channel, the density of DMRS occupied resources remains unchanged at the first value. In other words, within a certain range of time-frequency resources, the number of REs used by DMRS / the total amount of REs in the time-frequency resource remains unchanged. In some examples, the density of DMRS occupied resources in the second time-frequency resource can be greater than the density of DMRS occupied resources in the first time-frequency resource. In other words, while ensuring that the total number of DMRS in the physical channel remains unchanged, as much DMRS as possible can be mapped to the second time-frequency resource.

[0270] In some examples, the density of DMRS occupied resources may include time domain density and / or frequency domain density.

[0271] In some examples, the transmitting end may be a network device that generates the fifth information. The transmitting end may send the fifth information to the terminal, so that the terminal can determine the mapping mode corresponding to the DMRS based on the fifth information. In other examples, the transmitting end may be a terminal that receives the fifth information sent by the network device. The transmitting end may determine the mapping mode corresponding to the DMRS based on the fifth information.

[0272] In some embodiments, the fifth information may be carried in one or more of the following: protocol predefinition, network configuration, high-layer signaling, or physical layer signaling.

[0273] For example, the fifth information is predefined by a protocol. For another example, the fifth information can be configured by a network device. For another example, the fifth information can be carried by high-layer signaling. For example, the fifth information is carried by RRC and MAC CE. For another example, the fifth information can be carried by physical layer signaling. For example, the fifth information is carried by DCI, UCI, or SCI. For another example, the fifth information can be configured by a network device and carried by high-layer signaling. It can be understood that the fifth information can be carried or configured by any one or more of the above methods, and the embodiments of the present application are not listed here one by one.

[0274] The embodiment of the present application can allocate different DMRS densities to different time-frequency resources while keeping the overall DMRS density unchanged, so as to ensure more accurate parsing of data signals according to the DMRS on different time-frequency resources.

[0275] Scenario 2: The first signal is a data signal.

[0276] In the communication method provided in an embodiment of the present application, the first signal includes a data signal. Reliable data signal transmission can be ensured by sequentially mapping the data signal onto different time-frequency resources according to mapping priorities. For example, the different time-frequency resources are a first time-frequency resource and a second time-frequency resource. The data signal is sequentially mapped onto the first time-frequency resource and the second time-frequency resource.

[0277] In some embodiments, the first signal may include a data signal. The data signal may be sequentially mapped onto different time-frequency resources. For example, the data signal may be sequentially mapped onto the first time-frequency resource and the second time-frequency resource, i.e., first mapped onto the first time-frequency resource and then mapped onto the second time-frequency resource.

[0278] It can be understood that, assuming that the first time-frequency resource is a non-full-duplex time-frequency resource and the second time-frequency resource is a full-duplex time-frequency resource. Considering that the interference on the full-duplex time-frequency resource is more serious than the interference on the non-full-duplex time-frequency resource, priority is given to mapping the data signal to the non-full-duplex time-frequency resource to improve the reliability of the data signal during the communication process. When the full-duplex time-frequency resource can no longer map the data signal, the remaining unmapped data signal is mapped to the full-duplex time-frequency resource.

[0279] In some examples, the mapping of data signals onto time-frequency resources can be performed sequentially, first in the frequency domain and then in the time domain. Referring to Figure 15 , data signals can be mapped onto non-full-duplex time-frequency resources. On non-full-duplex time-frequency resources, data signals can be mapped sequentially, first in the frequency domain and then in the time domain. For example, the arrows on the non-full-duplex time-frequency resources in Figure 15 indicate that for the first symbol corresponding to the physical channel, the time-frequency resources of non-full-duplex A are mapped first, followed by the time-frequency resources of non-full-duplex B. After the mapping of the first symbol is complete, the second symbol is mapped. For example, for the second symbol corresponding to the physical channel, the time-frequency resources of non-full-duplex B can be mapped first, followed by the time-frequency resources of non-full-duplex A. This mapping process resembles an "S" pattern. Within the same symbol, mapping can be performed sequentially from high to low in the frequency domain, or from low to high in the frequency domain. It should be understood that the arrows in Figure 15 are merely illustrative and are not intended to be limiting in this regard. Similarly, for full-duplex time-frequency resources, the first symbol is mapped sequentially in the frequency domain, followed by the second symbol, according to the order of the arrows in Figure 15. Clearly, the time-frequency resources for non-full-duplex A and non-full-duplex B belong to the same non-full-duplex time-frequency resources. If the time-frequency resources for non-full-duplex A and non-full-duplex B are viewed as a whole, the mapping method is similar to that for full-duplex time-frequency resources.

[0280] It can be understood that although DMRS is not shown in FIG15 , in actual mapping, the data signal will skip the time-frequency resources occupied by DMRS during the mapping process and be mapped to idle time-frequency resources.

[0281] In the embodiment of the present application, the data signal can be preferentially mapped to the non-full-duplex time-frequency resources to ensure the reliability of the data signal transmission.

[0282] In some embodiments, the data signal includes a first type of data signal and a second type of data signal. The data priority of the first type of data signal is different from the data priority of the second type of data signal. The order in which the different data signals are sequentially mapped to the first time-frequency resource and the second time-frequency resource is determined based on the data priority.

[0283] In some examples, the data signal may include multiple types of data signals, and the data priorities corresponding to different types of data signals may be different. For example, the data signal includes a first type of data signal and a second type of data signal, and the data priority of the first type of data signal is different from the data priority of the second type of data signal. The order in which the first type of data signal and the second type of data signal are sequentially mapped to the first time-frequency resource and the second time-frequency resource may be determined based on the data priority of the first type of data signal and the data priority of the second type of data signal.

[0284] For example, the data priority of the first type of data signal is higher than that of the second type of data signal. Therefore, the first type of data signal can be mapped first, and then the second type of data signal. That is, the first type of data signal is first mapped to the non-full-duplex time-frequency resources. If the mapping is not complete, it is continued to be mapped to the full-duplex time-frequency resources. After the mapping of the first type of data signal is completed, the second type of data signal is mapped. Of course, if the first type of data signal is completely mapped to the non-full-duplex time-frequency resources, assuming that there are still unmapped resources in the non-full-duplex time-frequency resources, the second type of data signal can be first mapped to the remaining unmapped resources in the non-full-duplex time-frequency resources, and then mapped to the full-duplex time-frequency resources.

[0285] In some examples, the first type of data signal may be a URLLC data signal. The second type of data signal may be an eMBB data signal.

[0286] It can be understood that the priorities involved in the various embodiments of the present application, such as data priority or mapping priority. A higher data priority for describing a certain data signal means that such data signal should be mapped with higher priority; and a higher mapping priority for describing a certain time-frequency resource means that the data signal is mapped to the time-frequency resource with higher priority; a lower mapping priority for describing a certain time-frequency resource means that the DMRS is mapped to the time-frequency resource with higher priority. Among them, the higher the mapping priority of the time-frequency resource described in the various embodiments of the present application, the smaller the interference of the time-frequency resource. Conversely, the lower the mapping priority of the time-frequency resource, the more serious the interference of the time-frequency resource. Of course, as to whether a larger priority value indicates a higher priority or a smaller priority value indicates a higher priority, an appropriate method can be adopted according to the actual situation, and the embodiments of the present application are not limited here.

[0287] It is worth noting that when mapping DMRS, the time-frequency resources that prioritize DMRS mapping can also be considered to have a higher mapping priority. In this case, a higher mapping priority for a time-frequency resource means more severe interference with that time-frequency resource. Conversely, a lower mapping priority for a time-frequency resource means less interference with that time-frequency resource.

[0288] In some examples, URLLC data signals may include first-type URLLC data signals and second-type URLLC data signals. The data priority of the first-type URLLC data signals is higher than the data priority of the second-type URLLC data signals. Therefore, the first-type URLLC data signals may be mapped first, followed by the second-type URLLC data signals. Assuming that eMBB data signals also exist, the data priority order is: data priority of the first-type URLLC data signals > data priority of the second-type URLLC data signals > data priority of the eMBB data signals. Therefore, the eMBB data signals are mapped after the second-type URLLC data signals are mapped.

[0289] In some examples, URLLC data signals may include initially transmitted URLLC data signals and retransmitted URLLC data signals. The data priority of the initially transmitted URLLC data signals is higher than the data priority of the retransmitted URLLC data signals. Therefore, the initially transmitted URLLC data signals may be mapped first, followed by the retransmitted URLLC data signals. Assuming that eMBB data signals also exist, the data priority order is: the data priority of the initially transmitted URLLC data signals > the data priority of the retransmitted URLLC data signals > the data priority of the eMBB data signals. The eMBB data signals are mapped after the second type of URLLC data signals are mapped.

[0290] For another example, if the initially transmitted URLLC data signal includes a first type of initially transmitted URLLC data signal and a second type of initially transmitted URLLC data signal. Among them, the data priority of the first type of initially transmitted URLLC data signal is higher than the data priority of the second type of initially transmitted URLLC data signal. Similarly, if the retransmitted URLLC data signal includes a first type of retransmitted URLLC data signal and a second type of retransmitted URLLC data signal. Among them, the data priority of the first type of retransmitted URLLC data signal is higher than the data priority of the second type of retransmitted URLLC data signal. Assuming that there is also an eMBB data signal, the order of data priority is the data priority of the first type of initially transmitted URLLC data signal > the data priority of the second type of initially transmitted URLLC data signal > the data priority of the first type of retransmitted URLLC data signal > the data priority of the second type of retransmitted URLLC data signal > the data priority of the eMBB data signal. Then, mapping can be carried out starting from the data signal with the highest priority in this priority order until all data signals are mapped.

[0291] Of course, the data signal may include more or less data signals, and the data priority relationship of different types of data signals may be determined according to actual conditions, which is not limited in the embodiments of the present application.

[0292] In the embodiment of the present application, different types of data signals may have different data priorities. The mapping order of different data signals may be determined according to different data priorities to ensure the reliability of transmission of different types of data signals on non-full-duplex time-frequency resources and full-duplex time-frequency resources.

[0293] Next, the data signals sent on the first time-frequency resource and the second time-frequency resource will be configured from different dimensions.

[0294] Dimension 1:

[0295] In some embodiments, when the first signal includes a data signal, sending the data signal based on the first time-frequency resource and the second time-frequency resource can meet the following requirements: the number of retransmissions corresponding to transmitting the data signal on the second time-frequency resource is greater than the number of retransmissions corresponding to transmitting the data signal on the first time-frequency resource.

[0296] In some examples, to ensure the reliability of data signals during communication, data signals may be sent using data retransmission. Considering that interference on full-duplex time-frequency resources is more severe than interference on non-full-duplex time-frequency resources, data signals on full-duplex time-frequency resources may be assigned a greater number of retransmissions. For example, the number of retransmissions corresponding to transmitting a data signal on the second time-frequency resource may be greater than the number of retransmissions corresponding to transmitting a data signal on the first time-frequency resource. This improves the reliability of data signal transmission on the second time-frequency resource.

[0297] For example, the number of retransmissions corresponding to transmitting the data signal on the first time-frequency resource may be 1, and the number of retransmissions corresponding to transmitting the data signal on the second time-frequency resource may be 2. Of course, the embodiment of the present application does not limit the specific number of retransmissions.

[0298] Among them, the number of retransmissions involved in each embodiment of the present application can be considered to correspond only to the number of repeated transmissions other than the first transmission, or can be considered to be the total number of first transmission and subsequent repeated transmissions. The embodiments of the present application do not limit this.

[0299] Dimension 2:

[0300] In some embodiments, when the first signal includes a data signal, sending the data signal based on the first time-frequency resource and the second time-frequency resource can meet the following requirements: the modulation and coding scheme (MCS) used to transmit the data signal on the second time-frequency resource is smaller than the MCS used to transmit the data signal on the first time-frequency resource.

[0301] In some examples, to ensure data signal reliability during communication, data signals transmitted on different time-frequency resources may use different MCSs. The MCS used for transmitting the data signal on the second time-frequency resource may be different from the MCS used for transmitting the data signal on the first time-frequency resource. In some examples, the MCS includes a code rate and an adjustment order. For example, different MCSs may include different code rates, different modulation orders, or both different code rates and modulation orders.

[0302] For example, the higher the bit rate, the lower the reliability of data signal transmission. Therefore, for different data signals, data signals with higher data priority can be sent at a lower bit rate. For example, if the data priority of a first type of data signal is higher than that of a second type of data signal, the bit rate of the MCS used for the first type of data signal can be set to be lower than the bit rate of the MCS used for the second type of data signal.

[0303] For example, the higher the modulation order, the lower the reliability of data signal transmission. Therefore, for different data signals, data signals with higher data priority can be sent using a lower modulation order. For example, the data priority of the first type of data signal is higher than the data priority of the second type of data signal, so the modulation order of the MCS used by the first type of data signal can be lower than the modulation order of the MCS used by the second type of data signal. For example, the first type of data signal is modulated using 16-bit quadrature amplitude modulation (QAM), and the second type of data signal is modulated using quadrature phase shift keying (QPSK).

[0304] For example, if the code rate and modulation order are different, appropriate code rate and modulation order can be selected according to the actual situation to meet the reliability requirements of different data signals. For details, please refer to the description of the above embodiment, and the embodiment of this application will not be repeated here.

[0305] Dimension 3:

[0306] In some embodiments, when the first signal includes a data signal, sending the data signal based on the first time-frequency resource and the second time-frequency resource can meet the following requirements: the number of layers used to transmit the data signal on the second time-frequency resource is less than the number of layers used to transmit the data signal on the first time-frequency resource.

[0307] In some examples, to ensure the reliability of data signals during communication, data signals sent on different time-frequency resources may be sent using different numbers of layers.

[0308] For example, the fewer the number of layers, the higher the reliability of data signal transmission. Therefore, for different data signals, data signals with higher data priority can be transmitted using fewer layers. For example, if the data priority of a first type of data signal is higher than that of a second type of data signal, the number of layers used for the first type of data signal can be reduced compared to the number of layers used for the second type of data signal.

[0309] For example, the transmitting end may send or receive signaling for indicating the number of layers. For example, the signaling may respectively indicate the number of layers used by the data signal on different time-frequency resources. For example, indicating that the number of layers used by the data signal on the first time-frequency resource is 2, and indicating that the number of layers used by the data signal on the second time-frequency resource is 1. For another example, the protocol may predefine the relationship between the number of layers used by the data signals on different time-frequency resources, and the signaling only indicates the number of layers. For example, the protocol may predefine the relationship between the number of layers used by the data signal on the first time-frequency resource is 1 and the number of layers used by the data signal on the second time-frequency resource is 2. The signaling only needs to indicate that the number of layers is 2.

[0310] In the embodiment of the present application, the data signal may have different configurations on the non-full-duplex time-frequency resources and the full-duplex time-frequency resources, thereby ensuring the reliability of the data signal transmission on the corresponding time-frequency resources.

[0311] In the communication method provided in the embodiment of the present application, different time-frequency resources are determined by any one of the following methods: protocol pre-definition; division and determination based on channel measurement results.

[0312] In some embodiments, the first time-frequency resource and the second time-frequency resource may be determined based on protocol pre-definition.

[0313] In some embodiments, the transmitting end may determine the first time-frequency resource and the second time-frequency resource based on the channel measurement results. Alternatively, the receiving end may determine the first time-frequency resource and the second time-frequency resource based on the channel measurement results. The receiving end may inform the transmitting end of the division of the time-frequency resources.

[0314] For example, the channel measurement result may be a channel state information (CSI) report obtained by the terminal based on a channel state information-reference signal (CSI-RS) measurement. Or a cross-link interference (CLI) report obtained by the terminal. For another example, the channel measurement result may be a channel measurement result obtained by a network device based on a sounding reference signal (SRS) measurement.

[0315] The embodiments of the present application provide a variety of methods for determining different time-frequency resources, which can be applied to the division of time-frequency resources in different scenarios, thereby improving universality.

[0316] FIG16 is a flow chart of another communication method provided in an embodiment of the present application.

[0317] As shown in FIG16, the communication process can be applied to, but not limited to, the communication scenarios shown in FIG1 and FIG4 to FIG8. The method can be applied to the sending end. The sending end can be various possible devices in the above-mentioned scenarios, such as a terminal, a network device, a satellite, an IAB node, an IAB host node, etc., which are not limited in the embodiments of the present application. The method can include the following steps:

[0318] S201: A transmitting end determines at least two time-frequency resources.

[0319] In some embodiments, the transmitting end may determine at least two time-frequency resources, wherein N time-frequency resources in the at least two time-frequency resources have different mapping priorities, and N is a positive integer greater than or equal to 2.

[0320] For example, assume that the transmitter determines four time-frequency resources. For example, the mapping priorities corresponding to each of the four time-frequency resources are different. For another example, the mapping priorities corresponding to three of the four time-frequency resources are different, and the mapping priority corresponding to the remaining time-frequency resource is the same as the mapping priority corresponding to one of the three time-frequency resources.

[0321] In some embodiments, at least two time-frequency resources may be determined based on a channel measurement result and at least one measurement result threshold.

[0322] In some examples, the transmitter may determine at least two time-frequency resources based on a channel measurement result obtained from the channel measurement and at least one measurement result threshold, for example, by dividing the time-frequency resources corresponding to the physical channel into at least two time-frequency resources.

[0323] For example, the network device may directly perform measurements based on the SRS sent by the terminal to obtain channel measurement results. Alternatively, the network device may receive a CSI report or CLI report sent by the terminal and obtain channel measurement results based on the CSI report or CLI report. The CSI report may be obtained by the terminal based on CSI-RS measurements sent by the network device. Based on the obtained channel measurement results and at least one pre-set measurement result threshold, the network device divides the time-frequency resources corresponding to the physical channel into at least two time-frequency resources.

[0324] In some examples, the channel measurement result may be at least one of a received signal strength indication (RSSI), a reference signal received power (RSRP), a reference signal received quality (RSRQ), and a signal to interference plus noise ratio (SINR). Of course, the channel measurement result may also include any other possible parameters, which are not limited in the embodiments of the present application.

[0325] Referring to Figure 17, measurement result threshold 1 and measurement result threshold 2 can be pre-set measurement result thresholds. The network device can divide the time-frequency resources corresponding to the physical channel according to the channel measurement results, and measurement result threshold 1 and measurement result threshold 2. As shown in Figure 17, it is also divided into 3 time-frequency resources. Among them, the channel measurement result corresponding to one of the 3 time-frequency resources is less than the measurement result threshold 1; the channel measurement result corresponding to another time-frequency resource is less than the measurement result threshold 2, and is greater than or equal to the measurement result threshold 1; the channel measurement result corresponding to the last time-frequency resource is greater than or equal to the measurement result threshold 2. Of course, for the time-frequency resources whose channel measurement results are equal to the measurement result threshold 1, they can also be divided together with the time-frequency resources whose channel measurement results are less than the measurement result threshold 1; similarly, for the time-frequency resources whose channel measurement results are equal to the measurement result threshold 2, they can also be divided together with the time-frequency resources less than the measurement result threshold 2. This embodiment of the present application does not limit this.

[0326] It can be understood that the mapping priorities corresponding to different time-frequency resources may be the same or different. For example, the different time-frequency resources divided in Figure 17 have different corresponding channel measurement results. In this case, the mapping priorities corresponding to different time-frequency resources are different. For another example, assuming that the time-frequency resource with a channel measurement result less than the measurement result threshold 1 is divided into multiple non-adjacent time-frequency resources on the physical channel, the mapping priorities corresponding to the multiple time-frequency resources can be the same.

[0327] It's worth noting that for the aforementioned channel measurement results, in some scenarios, it may be necessary to determine the mapping priority of different time-frequency resources based on whether the measurement is being performed by the device itself or by another device. This is not determined solely based on the numerical value of the channel measurement result.

[0328] In some examples, referring to FIG17 , the three time-frequency resources can be divided into a first mapping priority, a second mapping priority, and a third mapping priority. For example, a larger value can indicate a higher mapping priority. For another example, a smaller value can indicate a higher mapping priority. The embodiments of the present application do not limit the correspondence between the value size and the priority level.

[0329] In some embodiments, at least two time-frequency resources may be acquired in a manner predefined by a protocol.

[0330] In some examples, for example, a protocol may predefine at least two time-frequency resources, and the network device may determine the mapping priorities corresponding to the at least two time-frequency resources according to the channel measurement result.

[0331] For example, the protocol predefines three time-frequency resources: time-frequency resource 1, time-frequency resource 2, and time-frequency resource 3. Based on channel measurement results, the network device can determine that the mapping priority corresponding to time-frequency resource 1 is higher than the mapping priority corresponding to time-frequency resource 3, which in turn is higher than the mapping priority corresponding to time-frequency resource 2.

[0332] In some examples, the order of mapping priorities obtained based on different measurement results may be different. Therefore, you can refer to Table 1 and Table 2, where different sequence numbers represent different priority rankings. Table 1 uses two time-frequency resources as an example, and Table 2 uses three time-frequency resources as an example for description. However, the embodiments of the present application do not limit the specific number of time-frequency resources, nor the corresponding relationship between the priority ranking and sequence number of each time-frequency resource.

[0333] Table 1

[0334] Table 2

[0335] In various embodiments of the present application, a higher mapping priority for a time-frequency resource may indicate lower interference with the time-frequency resource.

[0336] The embodiments of the present application provide a variety of methods for determining different time-frequency resources, which can be applied to the division of time-frequency resources in different scenarios, thereby improving universality.

[0337] In some embodiments, if the sending end is a network device, the sending end may also send indication information for indicating at least two time-frequency resources.

[0338] In some examples, referring to Table 1 and Table 2, the indication information sent by the transmitter may also carry the sequence numbers in Table 1 and Table 2 to indicate the relationship between the mapping priorities of different time-frequency resources.

[0339] In some embodiments, if the transmitting end is a terminal, the transmitting end may also receive indication information for indicating at least two time-frequency resources.

[0340] In some examples, referring to Table 1 and Table 2, the indication information received by the transmitter may also carry the sequence numbers in Table 1 and Table 2, so that the receiver can determine the mapping priority relationship of different time-frequency resources based on the sequence numbers.

[0341] In some examples, the indication information involved in the above examples can be used to indicate the frequency domain positions of at least two time-frequency resources. For example, it can indicate the starting position and duration of the frequency domain position. For another example, it can indicate the ending position and duration of the frequency domain position.

[0342] The embodiment of the present application can indicate different time-frequency resources through indication information, and can allocate multiple time-frequency resources more flexibly.

[0343] In some embodiments, the duplex types corresponding to M time-frequency resources of the at least two time-frequency resources include full duplex and non-full duplex. The duplex types corresponding to the other time-frequency resources of the at least two time-frequency resources other than the M time-frequency resources include non-full duplex. Wherein, M is a positive integer.

[0344] In other words, some of the at least two time-frequency resources, such as M time-frequency resources, may include a full-duplex time-frequency resource and a non-full-duplex time-frequency resource. The remaining time-frequency resources other than the M time-frequency resources in the at least two time-frequency resources may be non-full-duplex time-frequency resources.

[0345] In some embodiments, the duplex type corresponding to M time-frequency resources of the at least two time-frequency resources includes full-duplex, and the duplex type corresponding to other time-frequency resources other than the M time-frequency resources of the at least two time-frequency resources includes full-duplex and non-full-duplex, where M is a positive integer.

[0346] In other words, some of the at least two time-frequency resources, such as M time-frequency resources, may be full-duplex time-frequency resources. Each of the M time-frequency resources may be a full-duplex time-frequency resource. The remaining time-frequency resources other than the M time-frequency resources may include full-duplex time-frequency resources and non-full-duplex time-frequency resources.

[0347] In some embodiments, the duplex type corresponding to M time-frequency resources of the at least two time-frequency resources includes full-duplex, and the duplex type corresponding to other time-frequency resources other than the M time-frequency resources of the at least two time-frequency resources includes non-full-duplex, where M is a positive integer.

[0348] In other words, some of the at least two time-frequency resources, such as M time-frequency resources, may be full-duplex time-frequency resources. Other than the M time-frequency resources, the remaining time-frequency resources may be non-full-duplex time-frequency resources.

[0349] The embodiments of the present application provide multiple possible forms of duplex types corresponding to different time-frequency resources, so that signals can be sent on time-frequency resources of any possible duplex type according to the mapping priority of the time-frequency resources, thereby ensuring the reliability of signal transmission.

[0350] S202: The transmitting end sends a first signal based on at least two time-frequency resources.

[0351] In some embodiments, the transmitting end may send the first signal according to the at least two time-frequency resources determined in S201.

[0352] In some embodiments, the first signal may include a DMRS.

[0353] In some embodiments, the first signal may include a data signal.

[0354] In some embodiments, the first signal may include a DMRS and a data signal.

[0355] The embodiments of the present application provide multiple possible forms of the first signal, which can ensure the reliability of corresponding types of signal transmission in different scenarios.

[0356] In some embodiments, the density of the DMRS is determined based on mapping priorities corresponding to at least two time-frequency resources.

[0357] For example, the density of DMRS mapped to different time-frequency resources can be determined based on the mapping priority corresponding to the corresponding time-frequency resources. In other words, for each of the at least two time-frequency resources, when determining the density of DMRS for the time-frequency resource, it is necessary to determine it based on the mapping priority corresponding to the time-frequency resource.

[0358] For example, time-frequency resources with less interference, such as those with higher mapping priorities, can be assigned a lower DMRS density. Given that these time-frequency resources have less interference, more DMRS are not needed for demodulation optimization assistance. On the other hand, time-frequency resources with greater interference, such as those with lower mapping priorities, can be assigned a higher DMRS density. Given that these time-frequency resources have more severe interference, more DMRS are needed for demodulation optimization assistance.

[0359] Of course, the specific method for determining the DMRS density and the size relationship of the DMRS density between each time-frequency resource can be referred to the embodiments described in Figures 9 to 15, and the embodiments of the present application will not be repeated here.

[0360] The embodiment of the present application can determine the density of DMRS on the time-frequency resource according to the mapping priority of different time-frequency resources, thereby ensuring that the data signal can be parsed more accurately according to the DMRS on the time-frequency resource.

[0361] In some embodiments, the order in which the data signals are mapped onto the at least two time-frequency resources is determined based on the mapping priorities corresponding to the at least two time-frequency resources. In other words, the transmitting end may determine the order in which the data signals are mapped onto the at least two time-frequency resources based on the mapping priorities corresponding to the at least two time-frequency resources.

[0362] For example, for time-frequency resources with less interference, such as time-frequency resources with higher mapping priorities, data signals can be preferentially mapped to such time-frequency resources to ensure the reliability of data signal transmission. Of course, the specific order in which data signals are mapped to multiple time-frequency resources can be referred to the embodiments described in Figures 9 to 15, and the embodiments of this application will not be repeated here.

[0363] In the embodiment of the present application, the mapping order of data signals on different time-frequency resources can be determined according to the mapping priority to ensure the reliability of data signal transmission.

[0364] In some embodiments, the data signal has a data priority, and the order in which the data signals are mapped onto the at least two time-frequency resources is determined based on the data priority and the mapping priorities corresponding to the at least two time-frequency resources. In other words, the transmitting end may determine the order in which different types of data signals are mapped onto the at least two time-frequency resources based on the data priority and the mapping priorities corresponding to the at least two time-frequency resources.

[0365] For example, assuming that a higher data priority means more important data, data signals with higher data priorities may be prioritized for mapping. Furthermore, in the process of mapping data signals with higher data priorities, priority is given to mapping them to time-frequency resources with less interference, such as those with higher mapping priorities, to ensure the reliability of data signal transmission. Of course, the specific order in which different types of data signals are mapped to multiple time-frequency resources can be found in the various embodiments described in Figures 9 to 15, and the embodiments of this application will not be repeated here.

[0366] In the embodiment of the present application, different types of data signals may have different data priorities, and the mapping order of different data signals may be determined according to different data priorities to ensure the reliability of transmission of different types of data signals on different time-frequency resources.

[0367] As can be seen, based on the solution described in Figure 16, the embodiment of the present application can correspond to different mapping priorities for multiple different time-frequency resources. Signals can be sent on different time-frequency resources based on different mapping priorities, thereby ensuring the reliability of signal transmission.

[0368] It should be noted that the above-mentioned multiple embodiments can be combined and the combined solutions can be implemented. Optionally, some operations in the process of each method embodiment are optionally combined, and / or the order of some operations is optionally changed. In addition, the execution order between the steps of each process is only exemplary and does not constitute a limitation on the execution order between the steps. There can also be other execution orders between the steps. It is not intended to indicate that the execution order is the only order in which these operations can be performed. Ordinary technicians in this field will think of many ways to reorder the operations of this article. In addition, it should be pointed out that the process details involved in a certain embodiment of this article are also applicable to other embodiments in a similar manner, or different embodiments can be used in combination.

[0369] It is understood that in order to implement the functions in the above embodiments, the base station and the terminal include hardware structures and / or software modules that perform the corresponding functions. Those skilled in the art should readily appreciate that, in combination with the units and method steps of the various examples described in the embodiments disclosed in the present application, the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in hardware or in a computer software-driven hardware manner depends on the specific application scenario and design constraints of the technical solution.

[0370] Figures 18 and 19 are schematic diagrams of possible communication devices provided in embodiments of the present application. These communication devices can be used to implement the functions of any possible transmitter in the above method embodiments, thereby also achieving the beneficial effects of the above method embodiments. In the embodiments of the present application, the communication device can be a transmitter or a module applied to the transmitter, for example, a chip.

[0371] As shown in FIG. 18 , the communication device 1800 includes a processing unit 1810 .

[0372] In a possible implementation, the communication device 1800 may further include a transceiver unit 1820 .

[0373] In a possible implementation, the communication device 1800 may further include a storage unit 1830 .

[0374] In a possible implementation, the communication device 1800 may further include a transceiver unit 1820 and a storage unit 1830 .

[0375] The communication device 1800 is used to implement the functions of any node in the method embodiments shown in Figures 9 and 16 above.

[0376] When the communication device 1800 is used to implement the functions of any node in the method embodiment shown in Figure 9: the processing unit 1810 is used to determine the first time-frequency resource and the second time-frequency resource. The transceiver unit 1820 is used to send a first signal based on the first time-frequency resource and the second time-frequency resource. The processing unit 1810 is also used to perform all operations other than the transceiver operations performed by the communication device 1800 in the embodiment shown in Figure 9, and / or other processes for supporting the technology described herein. The storage unit 1830 is used to store any data, computer instructions and / or computer programs that may be involved in the various embodiments of the present application.

[0377] When the communication device 1800 is used to implement the functions of any node in the method embodiment shown in Figure 16: the processing unit 1810 is used to determine at least two time-frequency resources. The transceiver unit 1820 is used to send a first signal based on the at least two time-frequency resources. The processing unit 1810 is also used to perform all operations performed by the communication device 1800 in the embodiment shown in Figure 16, except for the transceiver operations, and / or other processes used to support the technology described herein. The storage unit 1830 is used to store any data, computer instructions, and / or computer programs that may be involved in the various embodiments of this application.

[0378] For a more detailed description of the processing unit 1810 and the transceiver unit 1820, please refer to the relevant description of the method embodiments shown in Figures 9 and 16. The processing unit 1810 and the transceiver unit 1820 may also perform other steps, and the specific implementation can refer to the method embodiments, which will not be repeated here.

[0379] Optionally, the transceiver unit 1820 may be a transceiver, which may include an antenna and a radio frequency circuit, etc.

[0380] The processing unit 1810 may be a processor (or a processing circuit), such as a baseband processor, which may include one or more CPUs.

[0381] As shown in FIG19 , the communication device 1900 includes at least one processor 1910. In one possible implementation, the communication device 1900 may further include an interface circuit 1920.

[0382] In a possible implementation, the communication device 1900 may further include a memory 1930 .

[0383] In a possible implementation, the communication device 1900 may further include a memory 1930 and an interface circuit 1920 .

[0384] In some embodiments, the processor 1910 and the memory 1930 are coupled to each other; and / or the processor 1910 and the interface circuit 1920 are coupled to each other. It will be appreciated that the interface circuit 1920 may be a transceiver or an input / output interface. The memory 1930 may be used to store computer instructions executed by the processor 1910, input data required by the processor 1910 to execute computer instructions, or data generated by the processor 1910 after executing computer instructions.

[0385] When the communication device 1900 is used to implement the method shown in Figures 9 and 16, the processor 1910 can be used to implement the functions of the above-mentioned processing unit 1810, and / or the interface circuit 1920 can be used to implement the functions of the above-mentioned transceiver unit 1820, and / or the memory 1930 can be used to implement the functions of the above-mentioned storage unit 1830.

[0386] The communication device shown in FIG. 18 or 19 is merely an example, and in actual applications the communication device may have more or fewer components than those shown in FIG. 18 or 19 , may combine two or more components, or may have a different component configuration.

[0387] In the embodiments of the present application, when entity A sends information to entity B, A may send the information directly to B or indirectly to B through another entity. Similarly, when entity B receives information from entity A, entity B may directly receive the information sent by entity A or indirectly receive the information sent by entity A through another entity. Entities A and B herein may be RAN nodes or terminals, or modules within a RAN node or terminal. The sending and receiving of information may be information exchange between a RAN node and a terminal, for example, information exchange between a network device and a terminal; the sending and receiving of information may also be information exchange between two RAN nodes, for example, information exchange between a CU and a DU; the sending and receiving of information may also be information exchange between different modules within a device, for example, information exchange between a terminal chip and other modules of the terminal, or information exchange between a network device chip and other modules within the network device.

[0388] In the embodiments of the present application, a network device sends downlink signals or downlink information to a terminal device, and the downlink information is carried on a downlink channel. The terminal device sends uplink signals or uplink information to the network device, and the uplink information is carried on an uplink channel. To communicate with the network device, the terminal device needs to establish a wireless connection with a cell controlled by the network device. The cell with which the terminal device has established a wireless connection is called the serving cell of the terminal device.

[0389] It can be understood that in the embodiment of the present application, PDSCH and PUSCH are only used as examples of downlink data channels and uplink data channels. In different systems and different scenarios, data channels and control channels may have different names, and the embodiment of the present application does not limit this.

[0390] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0391] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disk, mobile hard disk, CD-ROM or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be an integral part of the processor. The processor and storage medium can be located in an ASIC. In addition, the ASIC can be located in a network device or a terminal. The processor and storage medium can also exist in a network device or a terminal as discrete components.

[0392] In the above embodiments, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, or other programmable device. The computer program or instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions may be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; an optical medium, such as a digital video disk; or a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0393] In each embodiment of the present application, unless otherwise specified or provided by logic, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0394] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

Claims

1. A communication method, characterized in that, Including: Determine a first time-frequency resource and a second time-frequency resource, where the duplex type corresponding to the first time-frequency resource is half-duplex, the duplex type corresponding to the second time-frequency resource is full-duplex, and the first time-frequency resource and the second time-frequency resource correspond to different mapping priorities; Send a first signal based on the first time-frequency resource and the second time-frequency resource.

2. The method according to claim 1, characterized in that, The first signal includes at least one of the following: Demodulation reference signal DMRS; Data signal.

3. The method according to claim 1 or 2, characterized in that, The first time-frequency resource and the second time-frequency resource have different mapping priorities, which are reflected by at least one of the following methods: The DMRS is mapped on the first time-frequency resource by a first mapping method, and the DMRS is mapped on the second time-frequency resource by a second mapping method, and the mapping priority corresponding to the first mapping method is different from the mapping priority corresponding to the second mapping method; The mapping priority of the data signal mapped on the first time-frequency resource is different from the mapping priority of the data signal mapped on the second time-frequency resource.

4. The method according to claim 3, characterized in that The mapping priority corresponding to the first mapping method is different from the mapping priority corresponding to the second mapping method, which is reflected by at least one of the following methods: The density of the resources occupied by the DMRS in the first time-frequency resource is less than the density of the resources occupied by the DMRS in the second time-frequency resource; or, The time-domain density of the DMRS in different time-frequency resources is the same, and the frequency-domain density of the DMRS in the first time-frequency resource is less than the frequency-domain density of the DMRS in the second time-frequency resource; or, The frequency-domain density of the DMRS in different time-frequency resources is the same, and the time-domain density of the DMRS mapped in the first time-frequency resource is less than the time-domain density of the DMRS in the second time-frequency resource; or, The frequency-domain density of the DMRS in the first time-frequency resource is less than the frequency-domain density of the DMRS in the second time-frequency resource, and the time-domain density of the DMRS in the first time-frequency resource is less than the time-domain density of the DMRS in the second time-frequency resource.

5. The method according to claim 3 or 4, characterized in that, The method further includes: Send or receive first information, where the first information is used to determine the mapping methods corresponding to at least two DMRSs, where the mapping methods corresponding to the at least two DMRSs include the first mapping method and the second mapping method, and different duplex types correspond to different mapping methods.

6. The method according to claim 5, characterized in that, The mapping method corresponding to the duplex type is predefined by the protocol; or, The first information is further used to indicate the duplex type corresponding to the mapping method; or, The method further includes: Send or receive second information, where the second information is used to indicate the duplex type corresponding to the mapping method.

7. The method according to claim 2, characterized in that, The first signal includes the DMRS, and the DMRS includes a first DMRS and a second DMRS; the method further includes: Send or receive third information, where the third information is used to determine the mapping method corresponding to the first DMRS, where the first DMRS is mapped on the first time-frequency resource and the second time-frequency resource; Transmit or receive a fourth piece of information, where the fourth piece of information is used to determine the mapping method corresponding to the second DMRS, and wherein the second DMRS is mapped on a second time-frequency resource.

8. The method according to claim 7, characterized in that, The method further includes: Perform rate matching or puncturing on the time-frequency resources symmetric to the second DMRS.

9. The method according to claim 2, characterized in that, The first signal includes the DMRS, and the method further includes: Transmit or receive a fifth piece of information, where the fifth piece of information is used to determine the mapping method corresponding to the DMRS; Wherein, the density of the resources occupied by the DMRS is a first value, and the mapping method corresponding to the DMRS is reflected by: the density of the resources occupied by the DMRS in the second time-frequency resource is greater than the density of the resources occupied by the DMRS in the first time-frequency resource.

10. The method according to any one of claims 2-9, characterized in that, The first signal includes the data signal, and the data signal is sequentially mapped on the first time-frequency resource and the second time-frequency resource.

11. The method according to claim 10, wherein The data signal includes a first type of data signal and a second type of data signal, and the data priority of the first type of data signal is different from the data priority of the second type of data signal; the order in which different data signals are sequentially mapped on the first time-frequency resource and the second time-frequency resource is determined based on the data priority.

12. The method according to any one of claims 2-11, characterized in that, The first signal includes the data signal; Based on the first time-frequency resource and the second time-frequency resource to transmit the data signal, at least one of the following is satisfied: The number of retransmissions corresponding to transmitting the data signal on the second time-frequency resource is greater than the number of retransmissions corresponding to transmitting the data signal on the first time-frequency resource; The modulation and coding scheme MCS used for transmitting the data signal on the second time-frequency resource is less than the MCS used for transmitting the data signal on the first time-frequency resource; The number of layers used for transmitting the data signal on the second time-frequency resource is less than the number of layers used for transmitting the data signal on the first time-frequency resource.

13. The method according to any one of claims 1 to 12, characterized in that, The different time-frequency resources are determined by any one of the following methods: Pre-defined by the protocol; Determined based on channel measurement results.

14. A communication method, characterized in that, Includes: Determine at least two time-frequency resources, where among the at least two time-frequency resources, the mapping priorities corresponding to N time-frequency resources are different, and N is a positive integer greater than or equal to 2; Transmit the first signal based on the at least two time-frequency resources.

15. The method according to claim 14, wherein The duplex types corresponding to M time-frequency resources among the at least two time-frequency resources include full duplex and half duplex, and the duplex types corresponding to the other time-frequency resources except the M time-frequency resources among the at least two time-frequency resources include half duplex; or, The duplex types corresponding to M time-frequency resources among the at least two time-frequency resources include full duplex, and the duplex types corresponding to the other time-frequency resources except the M time-frequency resources among the at least two time-frequency resources include full duplex and half duplex; or, The duplex types corresponding to M time-frequency resources among the at least two time-frequency resources include full duplex, and the duplex types corresponding to the other time-frequency resources except the M time-frequency resources among the at least two time-frequency resources include half duplex; Wherein, M is a positive integer.

16. The method according to claim 14 or 15, characterized in that, The first signal includes at least one of the following: Demodulation reference signal DMRS; Data signal.

17. The method according to any one of claims 14 - 16, characterized in that, The density of the DMRS is determined based on the mapping priority corresponding to the at least two time-frequency resources.

18. The method according to any one of claims 14-17, characterized in that, The order in which the data signal is mapped onto the at least two time-frequency resources is determined based on the mapping priority corresponding to the at least two time-frequency resources.

19. The method according to claim 18, wherein The data signal has a data priority, and the order in which the data signal is mapped onto the at least two time-frequency resources is determined based on the data priority and the mapping priority corresponding to the at least two time-frequency resources.

20. The method according to any one of claims 14-19, characterized in that, The at least two time-frequency resources are obtained according to at least one of the following methods: Based on the channel measurement results and at least one measurement result threshold, the at least two time-frequency resources are determined; The at least two time-frequency resources are obtained according to a pre-defined protocol method.

21. The method according to claim 20, wherein The method further includes: Sending or receiving indication information for indicating the at least two time-frequency resources.

22. A communication device, characterized in that, Includes: A processing module and a communication module; The communication module is configured to receive and / or send signals, and the processing module is configured to enable the execution of the method according to any one of claims 1 to 13, or the processing module is configured to enable the execution of the method according to any one of claims 14 to 21.

23. A communication device, characterized in that, Includes: At least one processor and a communication interface, the communication interface is configured to receive and / or send signals, and the processor is configured to enable the execution of the method according to any one of claims 1 to 13, or the processor is configured to enable the execution of the method according to any one of claims 14 to 21.

24. A communication device, characterized in that, Includes: At least one processor and a memory, the memory is configured to store computer instructions, and the processor is configured to execute the computer instructions so that the communication device executes the method according to any one of claims 1 to 13, or so that the communication device executes the method according to any one of claims 14 to 21.

25. A communication system, characterized in that, The system includes: a transmitter and a receiver that execute the method according to any one of claims 1 to 13, or a transmitter and a receiver that execute the method according to any one of claims 14 to 21.

26. A computer-readable storage medium, characterized in that, Instructions or programs are stored in the computer-readable storage medium, and when the instructions or programs run on the communication device, the communication device is caused to execute the method according to any one of claims 1 - 13, or the communication device is caused to execute the method according to any one of claims 14 - 21.

27. A computer program product, characterized in that, The computer program product includes a computer program or instructions, and when the computer program or instructions run on a computer, the computer is caused to execute the method according to any one of claims 1 - 13, and the computer is caused to execute the method according to any one of claims 14 - 21.

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