Communication method and device

Abstract

The invention discloses a communication method and device. The communication method comprises the following steps: determining 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 correspond to different mapping priorities. And sending the first signal based on the first time-frequency resource and the second time-frequency resource. According to the embodiment of the invention, the full-duplex time-frequency resources and the non-full-duplex time-frequency resources can respectively correspond to different mapping priorities. Signals can be sent on different time-frequency resources based on different mapping priorities, so that the reliability of signal transmission is ensured.

Description

Technical Field

[0001] This application relates to the field of communications, and in particular, to a communication method and apparatus. Background Art

[0002] For performance requirements such as communication reliability and latency, they have gradually become key indicators that need to be considered in communication scenarios. For example, ultra-reliability low latency communication (URLLC) is one of the three application scenarios of the 5th generation (5G) communication system. As a breakthrough for the mobile communication industry to enter vertical industries, URLLC is crucial for the wide application in fields such as autonomous driving, industrial manufacturing, vehicle-to-everything (V2X), and smart grid. At the same time, it has been comprehensively enhanced in the release 16 stage of the new radio (NR) of the 3rd generation partnership project (3GPP).

[0003] Currently, how to ensure the requirements of corresponding services in different communication scenarios has become an urgent problem to be solved. Summary of the Invention

[0004] Embodiments of this application provide a communication method and apparatus. Different time-frequency resources can respectively correspond to different mapping priorities, thereby improving the reliability of signal transmission.

[0005] To achieve the above object, this application adopts the following technical solutions:

[0006] In a first aspect, a communication method is provided, including: determining a first time-frequency resource and a second time-frequency resource. Among them, 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 correspond to different mapping priorities. Sending a first signal based on the first time-frequency resource and the second time-frequency resource. For example, the first signal can be mapped on the first time-frequency resource and the second time-frequency resource corresponding to the first channel. Among them, the first channel can be a communication channel for transmitting the first signal.

[0007] Embodiments of this application can respectively correspond different mapping priorities to the time-frequency resources of full duplex and non-full duplex. Signals can be sent on different time-frequency resources based on different mapping priorities, thereby ensuring the reliability of signal transmission.

[0008] In a possible design, the first signal includes at least one of the following: a demodulation reference signal (DMRS); a data signal.

[0009] Embodiments of the present application provide various possible forms of the first signal, which can ensure the reliability of signal transmission of corresponding types in different scenarios.

[0010] In a possible design, 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: the DMRS is mapped on the first time-frequency resource by a first mapping method, 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.

[0011] In embodiments of the present application, for different types of signals, different mapping priorities can be respectively corresponding on the full-duplex time-frequency resources and the non-full-duplex time-frequency resources. Thus, based on different types of signals, the corresponding mapping methods are used to map and transmit on the full-duplex time-frequency resources and the non-full-duplex time-frequency resources, thereby ensuring the reliability of signal transmission of corresponding types.

[0012] In a 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 by at least one of the following: 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.

[0013] The embodiments of the present application provide various mapping methods of DMRS on different time-frequency resources. By configuring the density of DMRS on the time-frequency resources of full-duplex to be higher than that on the time-frequency resources of non-full-duplex, appropriate DMRS density can be adopted in different scenarios to send on the corresponding time-frequency resources, improving the reliability of parsing data signals based on DMRS on the time-frequency resources of full-duplex and non-full-duplex.

[0014] In a possible design, the method further includes: sending or receiving first information. The first information is used to determine the mapping methods corresponding to at least two DMRSs. Among them, 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.

[0015] The embodiments of the present application can configure various mapping methods of DMRS through the first information, so that appropriate mapping methods can be adopted for different time-frequency resources according to the first information, ensuring more accurate parsing of data signals based on DMRS on different time-frequency resources. In a possible design, the first information can be carried in one or more of the following: protocol predefined, network configuration, high-layer signaling, or physical-layer signaling.

[0016] The embodiments of the present application provide various carrying methods of the first information, so as to select an appropriate method to send the first information in different scenarios, improving the universality.

[0017] In a possible design, the protocol predefines the mapping method corresponding to the duplex type; or, the first information is further 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 further used to indicate the duplex type corresponding to the mapping method.

[0018] The embodiments of the present application provide various possible forms in which the mapping method corresponds to the duplex type, and appropriate methods can be selected in different scenarios to indicate the correspondence between the mapping method and the duplex type, so as to adopt appropriate mapping methods to map any type of signal on the time-frequency resources of full-duplex and non-full-duplex, ensuring the reliability of signal transmission.

[0019] In a possible design, the second information can be carried in one or more of the following: high-layer signaling or physical-layer signaling.

[0020] The embodiments of the present application provide various carrying methods of the second information, so as to select an appropriate method to send the second information in different scenarios, improving the universality.

[0021] In a 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 the mapping method corresponding to the first DMRS. Among them, the first DMRS is mapped on the first time-frequency resource and the second time-frequency resource. Sending or receiving fourth information. The fourth information is used to determine the mapping method corresponding to the second DMRS. Among them, the second DMRS is mapped on the second time-frequency resource.

[0022] Embodiments of the present application can divide different DMRSs through the mapping method, and one or more DMRSs can be respectively mapped on the time-frequency resources of full-duplex and non-full-duplex. Thus, it is ensured that data signals can be more accurately parsed according to the DMRS on different time-frequency resources.

[0023] In a possible design, the third information can be carried in one or more of the following: protocol predefined, network configuration, high-layer signaling, or physical-layer signaling.

[0024] Embodiments of the present application provide multiple ways to carry the third information, so as to select a suitable way to send the third information in different scenarios, improving the universality.

[0025] In a possible design, the fourth information can be carried in one or more of the following: protocol predefined, network configuration, high-layer signaling, or physical-layer signaling.

[0026] Embodiments of the present application provide multiple ways to carry the fourth information, so as to select a suitable way to send the fourth information in different scenarios, improving the universality.

[0027] In a possible design, the method further includes: rate matching or puncturing the time-frequency resources symmetric to the second DMRS.

[0028] Embodiments of the present application can perform rate matching or puncturing on the time-frequency resources symmetric to the second DMRS, and can flexibly configure the usage method of the resources for different transmission directions.

[0029] In a 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 the mapping method corresponding to the DMRS. Among them, the density of the resources occupied by the DMRS is a first value. The mapping method corresponding to the DMRS is reflected by the following: 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.

[0030] In the embodiments of the present application, different DMRS densities can be allocated to different time-frequency resources while keeping the overall DMRS density unchanged, so as to ensure more accurate parsing of data signals according to DMRS on different time-frequency resources.

[0031] In a possible design, the fifth information can be carried in one or more of the following: protocol predefined, network configuration, higher layer signaling, or physical layer signaling.

[0032] The embodiments of the present application provide multiple ways to carry the fifth information, so as to select a suitable way to send the fifth information in different scenarios, improving the universality.

[0033] In a possible design, the first signal includes the data signal, and the data signal is mapped in the first time-frequency resource and the second time-frequency resource in sequence.

[0034] In the embodiments of the present application, the data signal can be preferentially mapped on non-full-duplex time-frequency resources to ensure the reliability of data signal transmission.

[0035] In a 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 that of the second type of data signal; the order in which different data signals are mapped in the first time-frequency resource and the second time-frequency resource is determined based on the data priority.

[0036] In the embodiments of the present application, different types of data signals can have different data priorities. The mapping order of different data signals can 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.

[0037] In a possible design, the first signal includes the data signal; when sending the data signal based on the first time-frequency resource and the second time-frequency resource, 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.

[0038] In the embodiments of the present application, data signals may have different configurations on non-full-duplex time-frequency resources and full-duplex time-frequency resources, ensuring the reliability of data signal transmission on the corresponding time-frequency resources.

[0039] In a possible design, the different time-frequency resources are determined by any one of the following methods: predefined by a protocol; determined by partitioning based on channel measurement results.

[0040] The embodiments of the present application provide multiple methods for determining different time-frequency resources, which can be applied to the partitioning of time-frequency resources in different scenarios and improve universality.

[0041] In a second aspect, a communication method is provided, including: determining at least two time-frequency resources. Among them, the mapping priorities corresponding to N time-frequency resources among the at least two time-frequency resources are different, and N is a positive integer greater than or equal to 2. Sending a first signal based on the at least two time-frequency resources.

[0042] In the embodiments of the present application, multiple different time-frequency resources may respectively correspond to different mapping priorities. Signals can be sent on different time-frequency resources based on different mapping priorities, thereby ensuring the reliability of signal transmission.

[0043] In a possible design, the duplex types corresponding to M time-frequency resources among 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 except the M time-frequency resources among the at least two time-frequency resources include non-full 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 non-full 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 non-full duplex. Wherein, M is a positive integer.

[0044] 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 according to the mapping priority of the time-frequency resource on time-frequency resources of any possible duplex type, thereby ensuring the reliability of signal transmission.

[0045] In a possible design, the first signal includes at least one of the following: demodulation reference signal DMRS; data signal.

[0046] The embodiments of the present application provide multiple possible forms of the first signal, which can ensure the reliability of the transmission of corresponding types of signals in different scenarios.

[0047] In a possible design, the density of the DMRS is determined based on the mapping priorities corresponding to the at least two time-frequency resources.

[0048] Embodiments of the present application can determine the density of the DMRS on a time-frequency resource according to the mapping priorities of different time-frequency resources, thereby ensuring that the data signal can be more accurately parsed based on the DMRS on this time-frequency resource.

[0049] In a possible design, the order in which the data signal is mapped on the at least two time-frequency resources is determined based on the mapping priorities corresponding to the at least two time-frequency resources.

[0050] In embodiments of the present application, the data signal can determine the mapping order on different time-frequency resources according to the mapping priorities to ensure the reliability of data signal transmission.

[0051] In a possible design, the data signal has a data priority. The order in which the data signal is mapped on 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.

[0052] In embodiments of the present application, different types of data signals can have different data priorities. The mapping order of different data signals can be determined according to different data priorities to ensure the reliability of different types of data signals transmitted on different time-frequency resources.

[0053] In a 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 according to channel measurement results and at least one measurement result threshold; obtaining the at least two time-frequency resources according to a protocol predefined method.

[0054] Embodiments of the present application provide multiple ways to determine different time-frequency resources, which can be applied to the division of time-frequency resources in different scenarios and improve universality.

[0055] In a possible design, the method further includes: sending or receiving indication information for indicating the at least two time-frequency resources.

[0056] Embodiments of the present application can indicate different time-frequency resources through indication information, and can allocate multiple time-frequency resources more flexibly.

[0057] In a third aspect, a communication device is provided, including: 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 correspond to different mapping priorities. A communication unit, configured to send a first signal based on the first time-frequency resource and the second time-frequency resource.

[0058] In the embodiments of the present application, different time-frequency resources may correspond to different mapping priorities respectively. Different time-frequency resources may transmit data based on different mapping priorities, so as to ensure the reliability of signal transmission.

[0059] In a possible design, the first signal includes at least one of the following: demodulation reference signal DMRS; data signal.

[0060] In a possible design, 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: 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.

[0061] In a 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 by at least one of the following: 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.

[0062] In a possible design, the communication unit is further configured to: send or receive first information. The first information is used to determine the mapping methods corresponding to at least two DMRSs. Wherein, 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.

[0063] In a possible design, the first information may be carried in one or more of the following: protocol predefined, network configuration, high-layer signaling or physical-layer signaling.

[0064] In a possible design, the protocol predefines the mapping method corresponding to the duplex type; or, the first information is further used to indicate the duplex type corresponding to the mapping method; or, the method further includes: sending or receiving second information, where the second information is further used to indicate the duplex type corresponding to the mapping method.

[0065] In a possible design, the second information may be carried in one or more of the following: high-layer signaling or physical-layer signaling.

[0066] In a 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 the mapping method corresponding to the first DMRS. Wherein, 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 the mapping method corresponding to the second DMRS. Wherein, the second DMRS is mapped to the second time-frequency resource.

[0067] In a 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.

[0068] In a 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.

[0069] In a possible design, the processing unit is further configured to: perform rate matching or puncturing on the time-frequency resources symmetric to the second DMRS.

[0070] In a possible design, the first signal includes the DMRS, and the communication unit: sends or receives fifth information. The fifth 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. 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.

[0071] In a 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.

[0072] In a possible design, the first signal includes the data signal, and the data signal is sequentially mapped to the first time-frequency resource and the second time-frequency resource.

[0073] In a 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 that of the second type of data signal; the order in which 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.

[0074] In a possible design, the first signal includes the data signal; transmitting the data signal based on the first time-frequency resource and the second time-frequency resource satisfies at least one of the following: 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 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.

[0075] In a possible design, the different time-frequency resources are determined by any one of the following methods: predefined by a protocol; determined by partitioning based on channel measurement results.

[0076] In a fourth aspect, a communication device is provided, including: a processing unit, configured to determine at least two time-frequency resources. Among them, the mapping priorities corresponding to N time-frequency resources among the at least two time-frequency resources are different, and N is a positive integer greater than or equal to 2. A communication unit, configured to transmit a first signal based on the at least two time-frequency resources.

[0077] In the embodiments of the present application, different time-frequency resources may respectively correspond to different mapping priorities. Different time-frequency resources may transmit data based on different mapping priorities, thereby ensuring the reliability of signal transmission.

[0078] In a possible design, 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.

[0079] In a possible design, the first signal includes at least one of the following: Demodulation Reference Signal (DMRS); data signal.

[0080] In a possible design, the density of the DMRS is determined based on the mapping priority corresponding to the at least two time-frequency resources.

[0081] In a possible design, 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.

[0082] In a 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 priority corresponding to the at least two time-frequency resources.

[0083] In a 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 according to channel measurement results and at least one measurement result threshold; obtaining the at least two time-frequency resources according to a protocol predefined method.

[0084] In a possible design, the communication unit is further configured to: send or receive indication information for indicating the at least two time-frequency resources.

[0085] In a fifth aspect, a communication device is provided, including: at least one processor and a communication interface, where the communication interface is used to receive and / or send signals, and the processor is configured to enable the communication method in any one of the above aspects to be executed.

[0086] In a sixth aspect, a communication device is provided. The communication device includes: at least one processor and a memory; the memory is used to store computer instructions, and when the processor executes the instructions, the communication device is caused to execute the communication method in any one of the above aspects.

[0087] In a seventh aspect, a communication device is provided, where the communication device includes a processor for supporting the transmitting end to implement the functions involved in any one of the above aspects.

[0088] In a possible design, the communication device further includes a memory, and the memory is used to store the necessary program instructions and data of the transmitting end.

[0089] In a possible design, the communication device further includes: a communication interface for receiving and / or sending signals.

[0090] In an eighth aspect, a chip system is provided. The chip system includes a processor and an input / output port. The processor is configured to implement the processing functions involved in the communication method in any of the above aspects, and the input / output port is configured to implement the transceiver functions involved in the communication method in any of the above aspects.

[0091] In a possible design, the chip system further includes a memory, which is configured to store program instructions and data for implementing the functions involved in the communication method in any of the above aspects.

[0092] The chip system may be composed of chips or may include chips and other discrete devices.

[0093] In a ninth aspect, a communication system is provided. The system includes a sending end that executes any method in any of the above aspects, and a receiving end that executes any method in any of the above aspects.

[0094] In a tenth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores computer instructions; when the computer instructions are run on a computer, the computer is caused to execute the communication method in any design in any of the above aspects.

[0095] In an eleventh aspect, a computer program product is provided. The computer program product 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 in any design in any of the above aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0096] Figure 1 It is an architecture example diagram of the communication system provided by the embodiment of the present application;

[0097] Figure 2 It is a schematic diagram of channel division provided by the embodiment of the present application;

[0098] Figure 3 It is a schematic diagram of channel mapping provided by the embodiment of the present application;

[0099] Figure 4 It is a schematic diagram of a communication scenario provided by the embodiment of the present application;

[0100] Figure 5 It is another schematic diagram of a communication scenario provided by the embodiment of the present application;

[0101] Figure 6 It is still another schematic diagram of a communication scenario provided by the embodiment of the present application;

[0102] Figure 7 It is yet another schematic diagram of a communication scenario provided by the embodiment of the present application;

[0103] Figure 8 Another schematic diagram of a communication scenario provided by an embodiment of the present application;

[0104] Figure 9 A flowchart of a communication method provided by an embodiment of the present application;

[0105] Figure 10 A schematic diagram of resource mapping provided by an embodiment of the present application;

[0106] Figure 11 Another schematic diagram of resource mapping provided by an embodiment of the present application;

[0107] Figure 12 Another schematic diagram of resource mapping provided by an embodiment of the present application;

[0108] Figure 13 Another schematic diagram of resource mapping provided by an embodiment of the present application;

[0109] Figure 14 Another schematic diagram of resource mapping provided by an embodiment of the present application;

[0110] Figure 15 Another schematic diagram of resource mapping provided by an embodiment of the present application;

[0111] Figure 16 Another flowchart of a communication method provided by an embodiment of the present application;

[0112] Figure 17 A schematic diagram of time-frequency resource division provided by an embodiment of the present application;

[0113] Figure 18 A schematic diagram of a communication device provided by an embodiment of the present application;

[0114] Figure 19 Another schematic diagram of a communication device provided by an embodiment of the present application. Detailed implementation manners

[0115] The network architecture and service scenarios described in the embodiments of the present application are used 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 by the embodiments of the present application. Those of ordinary skill in the art can know that with the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0116] The network architecture and service scenarios described in the embodiments of this application are to more clearly illustrate the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. Those of ordinary skill in the art can understand that with the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0117] In the description of the embodiments of this application, terms such as "first" and "second" in the specification and drawings are used to distinguish different objects or different processes for the same object. Words such as "first" and "second" can distinguish identical or similar items with basically the same functions and roles. For example, the first device and the second device are only used to distinguish different devices, and do not limit their order. Those skilled in the art can 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 being different.

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

[0119] In the description of the embodiments of this application, unless otherwise specified, " / " means that the related objects before and after are in an "or" relationship. For example, A / B can mean A or B; "and / or" in the embodiments of this application is only a description of the association relationship of related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. Here, A and B can be singular or plural.

[0120] In the description of the embodiments of this application, unless otherwise specified, "a plurality" means two or more than two. "At least one (item)" or its similar expression means any combination of these items, including any combination of single item (s) or plural item (s). For example, at least one (item) of a, b, or c can mean: a, b, c, a - b, a - c, b - c, or a - b - c, where a, b, and c can be single or plural.

[0121] In addition, for the convenience of clearly describing the technical solutions of the embodiments of this application, in the embodiments of this application, words such as "first" and "second" are used to distinguish identical or similar items with basically the same functions and roles. Those skilled in the art can 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 being different.

[0122] In addition, the terms "including" and "having" and any variations thereof mentioned in the description of the embodiments of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally further include other steps or units not listed, or may optionally further include other steps or units inherent to these processes, methods, products, or devices.

[0123] In the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner for ease of understanding.

[0124] It can be understood that the "embodiments" mentioned throughout the specification mean that specific features, structures, or characteristics related to the embodiments are included in at least one embodiment of the embodiments of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics can be combined in one or more embodiments in any suitable manner. It can be understood that in the various embodiments of the embodiments of the present application, the magnitude of the serial numbers of the various processes does not mean the order of execution, and the order of execution of the various processes should be determined according to their functions and internal logics, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0125] It can be understood that in the embodiments of the present application, both "when..." and "if" refer to corresponding processing under certain objective circumstances, not limited to time, and do not require a judgment action during implementation, nor do they mean the existence of other limitations.

[0126] It can be understood that some optional features in the embodiments of the present application can, in some scenarios, be implemented independently without relying on other features, such as the current solution they are based on, to solve the corresponding technical problems and achieve the corresponding effects. In some scenarios, they can also be combined with other features according to requirements. Correspondingly, the devices given in the embodiments of the present application can also implement these features or functions accordingly, which will not be elaborated herein.

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

[0128] In the technical solutions of the embodiments of the present application, the processing of the user's personal information, such as collection, storage, use, processing, transmission, provision, and disclosure, all comply with the provisions of relevant laws and regulations and do not violate public order and good customs. For example, in the technical solutions of the embodiments of the present application, the processing of the user's personal information is carried out under the authorization of the user. This is uniformly stated here and will not be repeated below.

[0129] Figure 1 It is an architecture example diagram of the communication system provided by the embodiments of the present application.

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

[0131] Among them, the terminal 110 and the network device 120 communicate with each other wirelessly. The network device 120 may be a radio access network device. The terminals and the radio access network devices can be connected to each other in a wired or wireless manner. Figure 1 This is only a schematic diagram. The communication system may also include other network devices, such as wireless relay devices, wireless backhaul devices, core network devices, etc., which are not drawn in Figure 1 It. The connection relationship between the devices is not limited to the above-listed manners.

[0132] The radio access network device can 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 NodeB in a 6th generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc.; it can also be a module or unit that completes some functions of the base station. For example, it can be a central unit (CU) or a distributed unit (DU). The radio access network device can be a macro base station, a micro base station or an indoor station, and can also be a relay node or a donor node, etc. In some other embodiments, the radio access network device can also be an access network device in an open RAN (O-RAN). In the O-RAN, the CU can be called an open CU (O-CU), the DU can be called an open DU (O-DU), and the RU can be called an open RU (O-RU). The embodiments of the present application do not limit the specific technologies and specific device forms adopted by the radio access network device. The radio access network device is sometimes also simply referred to as a network device. For the convenience of description, the base station is used as an example of the radio access network device in the following description.

[0133] The terminal can also be referred to as a terminal device, a user equipment (UE), a mobile station, a mobile terminal, etc. The terminal device can be widely applied to 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, remote medical treatment, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, etc. The terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a robotic arm, a smart home device, etc. The embodiments of the present application do not limit the specific technologies and specific device forms adopted by the terminal device.

[0134] The base station and the terminal can be in fixed positions or movable. The base station and the terminal device can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on airplanes, balloons, and artificial satellites in the air. The embodiments of the present application do not limit the application scenarios of the base station and the terminal device.

[0135] Communication can be carried out between the base station and the terminal, between the base station and the base station, and between the terminal and the terminal through licensed spectrum, or through unlicensed spectrum, or through both licensed spectrum and unlicensed spectrum at the same time; communication can be carried out through spectrum below 6 gigahertz (GHz), or through spectrum above 6 GHz, or through both spectrum below 6 GHz and spectrum above 6 GHz at the same time. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0136] In the embodiments of the present application, the functions of the base station can also be executed by modules (such as chips) in the base station, or by a control subsystem including the functions of the base station. The control subsystem including the functions of the base station here can be the control center in the application scenarios of the above terminal devices such as smart grid, industrial control, intelligent transportation, and smart city. The functions of the repeater can also be executed by modules (such as chips or modems) in the repeater, or by a device including the functions of the repeater. The functions of the terminal can also be executed by modules (such as chips or modems) in the terminal, or by a device including the functions of the terminal.

[0137] In a wireless communication system, including communication devices, wireless communication can be carried out between the communication devices by using air interface resources. Among them, the communication devices can include network devices and terminal devices, and the network devices can also be called base station devices. The air interface resources can include at least one of time domain resources, frequency domain resources, code resources, and space resources. Among them, the communication devices can also be called communication apparatuses.

[0138] The solution provided by the embodiments of the present application can be applied to the wireless communication between communication devices. Among them, the wireless communication can include: wireless communication between the network device and the terminal, wireless communication between the network device and the network device, and wireless communication between the terminal and the terminal. In the embodiments of the present application, the term "wireless communication" can also be abbreviated as "communication", and the term "communication" can also be described as "data transmission", "information transmission", or "transmission".

[0139] Embodiments of the present application can be used in possible communication links such as uplink (UL), downlink (DL), access link, backhaul link, sidelink (SL), etc., and embodiments of the present application do not limit this here. From the perspective of service scenarios, embodiments of the present application are applicable to various scenarios, such as extended reality (XR) services, artificial intelligence (AI) services, high-capacity scenarios, etc., and embodiments of the present application do not limit this here. Among them, SL can also be referred to as sidelink, sideway, etc., and embodiments of the present application do not limit this here.

[0140] Currently, the biggest feature of the URLLC scenario is low latency and high reliability. At the same time, the application scope of the URLLC scenario is also relatively wide, and the requirements for latency, reliability, and bandwidth are different in different scenarios. For example, the "three remote" scenario of power automation, the vehicle-to-everything scenario, the industrial manufacturing scenario, etc.

[0141] Compared with sub-band full-duplex (SBFD), bandwidth part–full duplex (BWP-FD) can support full duplex in any sub-band. BWP-FD can adjust the duplex mode according to service requirements, so as to flexibly match service requirements and latency requirements. The advantage of BWP-FD over SBFD is that it can increase the uplink bandwidth without causing loss of downlink bandwidth. It can be applicable to the URLLC scenario.

[0142] For example Figure 2 shows a possible frequency band division method. Refer to Figure 2 , in some frame structures, there can be full-duplex regions and non-full-duplex regions. For example, the sub-bands corresponding to the white regions in the figure can be full duplex (FD), and the sub-bands corresponding to the hatched regions can be non-full duplex (non FD). In some examples, non-full duplex can also be referred to as half duplex. The non-full-duplex region can be used for uplink or downlink according to the situation, such as Figure 2 the hatched regions in different directions. For example, the hatched region from the upper right to the lower left can represent for downlink; the hatched region from the upper left to the lower right can represent for uplink. Of course, for the non-full-duplex region, it can be arbitrarily adjusted for uplink or downlink according to the actual situation, Figure 2 which is only an example of one possibility, and embodiments of the present application do not limit this.

[0143] Among them, the full-duplex region can also be referred to as the full-duplex time-frequency resource. On such time-frequency resources, signals can be transmitted simultaneously in two directions of a communication link, that is, it can be considered that there are two channels. For the transmitting end and the receiving end of the communication link, both have the ability to independently receive signals and transmit signals. For example, the full-duplex region can be used for uplink, downlink, or transmission in two directions of the same communication link simultaneously.

[0144] The non-full-duplex region can also be referred to as the half-duplex region, the non-full-duplex time-frequency resource, the half-duplex time-frequency resource, etc. Signals can be transmitted in two directions of a communication link on such time-frequency resources, but only one direction is allowed to transmit at the same time. For the transmitting end and the receiving end of the communication link, both have the ability to independently receive signals and transmit signals. However, at the same time, the transmitting end and the receiving end cannot transmit or receive signals simultaneously. For example, the non-full-duplex region can be used for uplink, downlink, or transmission in a certain direction of the same communication link respectively according to different times.

[0145] Each embodiment of the present application can be used in 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 herein.

[0146] However, for data related to some services associated with low latency and high reliability. It is considered that it may be mapped to the full-duplex region and the non-full-duplex region simultaneously. For example Figure 3 As shown, it can be seen that the physical downlink shared channel (PDSCH) is mapped to the full-duplex region and the non-full-duplex region simultaneously. For the full-duplex region, there are both uplink communication and downlink communication at the same time, and there will be very serious interference. That is to say, the channel environment on this part of the time-frequency resources is very poor. It can be understood Figure 3 Only the situation of PDSCH is shown, and the same applies to other uplink channels or downlink channels. If the current signal mapping method is adopted, due to the serious interference in some regions, the reliability of the signal communication process cannot be satisfied.

[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. Next, the possible scenarios applicable to the embodiments of the present application will be introduced.

[0149] Figure 4 This is a schematic diagram of a communication scenario provided by an embodiment of the present application.

[0150] As Figure 4As shown in the figure, the embodiments of the present application can be applied to communication scenarios such as satellite communication. This scenario may include a satellite 220 and a terminal 210. Among them, the terminal 210 may be a network element of the terminal type. For example, it may be Figure 1 the terminal 110. The satellite 220 can provide communication services for the terminal 210. The satellite 220 sends downlink data to the terminal 210, and the downlink data can be encoded using channel coding technology. Then the encoded data is sent to the terminal 210 after constellation modulation. The terminal 210 can send uplink data to the satellite 220, and the uplink data can also be encoded using channel coding technology. Then the encoded data is sent to the satellite 220 after constellation modulation.

[0151] For another example, Figure 5 is a schematic diagram of another communication scenario provided by the embodiments of the present application. Refer to Figure 5 , similar to Figure 4 , the difference is that the satellite 220 can also communicate with a network device 230. Among them, the network device 230 can be similar to the network device 120 shown in Figure 1 . Figure 5 When the satellite 220 communicates with the terminal 210 in , the satellite 220 can be regarded as a network device. When the satellite 220 communicates with the network device 230, the satellite 220 can be regarded as a terminal.

[0152] In some examples, the satellite 220 may be an unmanned aerial vehicle, a hot air balloon, a low-earth orbit satellite, a medium-earth orbit satellite, a geostationary orbit satellite, etc., or may be a non-ground base station, a non-ground device, etc. The embodiments of the present application do not limit this here.

[0153] Figure 6 is a schematic diagram of yet another communication scenario provided by the embodiments of the present application.

[0154] As Figure 6 shown, this scenario can represent inter-satellite communication between satellites. Among them, the satellite 310 may be satellite A or satellite B. The satellite 310 and Figure 4 , Figure 5The satellites 220 can be the same. The satellite 310 may include an independent communication subsystem 311 and an acquisition pointing and tracking (APT) subsystem 312. Among them, the communication subsystem 311 is responsible for the interaction of information between satellites and can be regarded as the main body of the inter-satellite communication system. The APT subsystem 312 is responsible for acquisition, alignment, and tracking between them. Among them, acquisition can be to determine the direction of arrival of the incident signal; alignment can be to adjust the transmit beam to aim at the receiving direction; tracking can be considered as continuously adjusting alignment and acquisition throughout the communication process. Among them, the communication subsystem 311 may include a transceiver antenna 3111, and the APT subsystem 312 may include an APT transceiver module 3121.

[0155] For the inter-satellite communication system, in order to minimize the attenuation and interference effects in the channel and at the same time require high confidentiality and transmission rate. It is necessary to adjust the APT in real time to continuously adapt to possible environmental changes. Currently, the APT subsystem 312 is usually an optical system, and the difficulty lies in the large optical alignment difficulty, and mechanical adjustment of the pointing is often required. Most of the current communication subsystems 311 are also optical communication systems, and there are also some communication systems in the microwave band, and most of them use a single high-gain antenna.

[0156] In some embodiments, the embodiments of the present application can be applicable to Figure 1 the cellular communication scenario shown. In a cellular communication system, it is usually composed of multiple cells. Each cell may include a base station (BS). The base station can 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 the RRU can be placed in different places. For example, the RRU is placed in a high-traffic area, and the BBU is placed in the central computer room. Of course, the BBU and the RRU can also be placed in the same computer room. Or, the BBU and the RRU can also be different components under a single rack.

[0157] In some examples, Figure 1The communication scenarios shown can be applicable to, including but not limited to: narrow band-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 the three major application scenarios of the next generation mobile communication system, namely enhance mobile broadband (eMBB), URLLC, and enhanced machine-type communication (eMTC), etc.

[0158] Figure 7 This is another schematic diagram of a communication scenario provided by the embodiments of this application.

[0159] As Figure 7 shown, the scenario can include a terminal 410 and a TV 420. Among them, the terminal 420 can be similar to Figure 1 the terminal 110, Figure 4 and Figure 5 the terminal 210. Figure 7 The scenario shown can be considered as scenarios such as the terminal 410 performing wireless screen mirroring through the TV 420, virtual reality (VR) games, etc.

[0160] Figure 8 This is another schematic diagram of a communication scenario provided by the embodiments of this application.

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

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

[0163] Figure 9 This is a flowchart of a communication method provided by an embodiment of the present application.

[0164] As Figure 9 shown, this communication process can be applicable to but not limited to Figure 1 , Figures 4 to 8 the communication scenarios shown. This method can be applied to a sending end. Among them, the sending end can be various possible devices in the above scenarios, such as a terminal, a network device, a satellite, an IAB node, an IAB donor node, etc., which are not limited herein in the embodiments of the present application. This method may include the following steps:

[0165] S101, the sending end determines a first time-frequency resource and a second time-frequency resource.

[0166] In some embodiments, the sending end may determine a first time-frequency resource and a second time-frequency resource. Among them, 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 the time-frequency resources corresponding to a first channel. Among them, the first channel can be considered as a communication channel for sending a first signal. The first signal is the signal to be sent by the sending end. For example, the first signal may be mapped on 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] Embodiments of the present application provide various possible forms of the first signal, which can ensure the reliability of signal transmission of corresponding types in different scenarios.

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

[0173] In some embodiments, the sending 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 sending end may map the first signal onto the first time-frequency resource and the second time-frequency resource. The sending end may send the mapped first signal to the receiving end based on the first time-frequency resource and the second time-frequency resource. Herein, the receiving end is the device that receives the first signal. For example, it may be Figure 1 , Figures 4 to 8 any possible device in the communication scenarios shown, such as a terminal, a network device, a satellite, an IAB node, an IAB host node, etc., which are not limited in embodiments of the present application.

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

[0176] Embodiments of the present application may correspond different mapping priorities to the time-frequency resources of full-duplex and non-full-duplex respectively. Signals may be sent on different time-frequency resources based on different mapping priorities, so as to ensure the reliability of signal transmission.

[0177] In the communication method provided by the embodiments of the present application, for different types of signals, different mapping priorities may correspond to different time-frequency resources respectively, so as to ensure the reliability of the transmission of corresponding types of signals on different time-frequency resources. Taking the first time-frequency resource and the second time-frequency resource as examples, 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 the first mapping method, the DMRS is mapped on the second time-frequency resource by the 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 may be manifested as: The DMRS is mapped on the first time-frequency resource by the first mapping method, and the DMRS is mapped on the second time-frequency resource by the second mapping method.

[0179] For example, considering that the first time-frequency resource and the second time-frequency resource have different mapping priorities, different mapping methods may be used to map the DMRS to the first time-frequency resource and the second time-frequency resource respectively during the mapping process. That is to say, different mapping methods can be selected according to the mapping priorities of different time-frequency resources, so as to map the DMRS 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 may 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 first time-frequency resource and the second time-frequency resource have different mapping priorities, the data signal can determine how to map the data signal on the first time-frequency resource and the second time-frequency resource based on the mapping priority. For example, it can be preferentially mapped to the time-frequency resource with a certain mapping priority. Another example is that certain types of data signals are 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 may be manifested as: The DMRS is mapped on the first time-frequency resource by the first mapping method, and the DMRS is mapped on the second time-frequency resource by the second mapping method. And 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.

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

[0184] As follows, the embodiments of the present application will introduce the mapping methods of different types of first signals in more detail according to the type of the first signal:

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

[0186] In the communication method provided by the embodiments 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 parsed more accurately based on DMRS on the time-frequency resource 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 by at least one of the following ways: the density of DMRS occupying resources in the first time-frequency resource is less than the density of DMRS occupying resources 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 mapping DMRS 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 manifestation methods, the embodiments of the present application will describe in more detail with different situations.

[0188] Situation 1:

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

[0190] In each embodiment of the present application, the density of the time-domain resources occupied by DMRS can also be referred to as the time-domain density of DMRS, which can represent the ratio between the number of symbols containing DMRS within a certain resource and the total number of symbols occupied by this resource. The density of the frequency-domain resources occupied by DMRS can also be referred to as the frequency-domain density of DMRS, which can represent the ratio between the number of frequency-domain REs including DMRS in one symbol and the total number of REs in this symbol within a certain frequency-domain resource. Of course, the above ratios can be embodied in forms such as fractions, decimals, percentages, or any other possible forms. The embodiments of the present application do not make any limitation in this regard.

[0191] For example, the density of the resources occupied by DMRS in the first time-frequency resource can be less than the density of the resources occupied by DMRS in the second time-frequency resource. This makes the proportion of DMRS in the second time-frequency resource higher. Considering that the second time-frequency resource can be a full-duplex area with relatively serious interference. Therefore, by setting a higher proportion of DMRS, it is beneficial for the receiving end to better analyze the data transmitted in this part of the resources.

[0192] Case 2:

[0193] In some embodiments, for the first signal being DMRS, the mapping priorities corresponding to the first mapping method and the second mapping method are different, which can be manifested as: the time-domain densities of DMRS in different time-frequency resources are 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 to say, it is possible to make the time-domain densities of DMRS in different time-frequency resources the same, that is, the proportion of the symbols occupied by DMRS in different time-frequency resources is the same. For the frequency domain, a greater frequency-domain density can be given to the second time-frequency resource.

[0195] For example, the time 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, the frequency domain density of DMRS in one or more symbols configured with DMRS can be set to 2 / 3; in the first time-frequency resource, the frequency domain density of DMRS in one or more symbols configured with DMRS can be set to 1 / 2. Another example is that the frequency domain density of DMRS in one or more symbols configured with DMRS can be set to 1 / 2; in the first time-frequency resource, the frequency domain density of DMRS in one or more symbols configured with DMRS can be set to 1 / 3. In some examples, the frequency domain density of DMRS in each symbol configured with DMRS in the second time-frequency resource can be made greater than the frequency domain density of DMRS in each symbol configured with DMRS in the first time-frequency resource. Of course, if only the frequency domain density in some DMRS symbols in the second time-frequency resource is greater than the frequency domain density of DMRS in some symbols of the first time-frequency resource, then it is necessary to ensure that the overall frequency domain density of DMRS in the second time-frequency resource is greater than the overall frequency domain density of DMRS in the first time-frequency resource.

[0196] In some examples, referring to Figure 10 the resource mapping schematic diagram shown. It can be seen that the symbols occupied by DMRS on the time-frequency resource of non-full-duplex are the same as those occupied by DMRS on the time-frequency resource of full-duplex, that is, the time domain density of DMRS in different time-frequency resources is ensured to be the same. For the time-frequency resource of non-full-duplex, the frequency domain density of DMRS is 1 / 2, that is, DMRS is mapped on 1 out of every 2 REs. For the time-frequency resource of non-full-duplex, the frequency domain density of DMRS is 2 / 3, that is, DMRS is mapped on 2 out of 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, obviously 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 channels involved in the embodiments of the present application may represent the first channels corresponding to the first signals to be transmitted. The first channels may be physical uplink channels, physical downlink channels, or physical sidelink channels; the first channels may be control channels or shared channels. For example, the physical channels may be PDSCH, physical downlink control channel (PDCCH), physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), physical sidelink shared channel (PSSCH), physical sidelink control channel (PSCCH). For another example, the physical channels may also be physical reception link control channel (PRxCCH), physical reception link shared channel (PRxSCH), physical transmission link control channel (PTxCCH), physical transmission link shared channel (PTxSCH), etc., which are not limited herein in the present application.

[0198] Among them, PRxCCH and PTxCCH may be a type of physical layer control channel. PRxCCH may be a physical layer control channel received by the terminal, and PTxCCH may be a physical layer control channel transmitted by the terminal. PRxSCH and PTxSCH may be a type of physical layer data channel. PRxSCH may be a physical layer data channel received by the terminal, and PTxSCH may be a physical layer data channel transmitted by the terminal.

[0199] It can be understood that considering that the second time-frequency resource may be a full-duplex region with relatively serious interference. Without changing the time-domain density of DMRS, different frequency-domain densities are configured for DMRS on different time-frequency resources. For example, making the frequency-domain density of DMRS on the second time-frequency resource higher than that of DMRS on the first time-frequency resource is beneficial for the receiving end to better analyze the data transmitted in this frequency band.

[0200] Case 3:

[0201] In some embodiments, for the first signal being DMRS, the mapping priorities corresponding to the first mapping manner and the second mapping manner are different, 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 DMRS mapped in the first time-frequency resource is less than the time-domain density of DMRS in the second time-frequency resource.

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

[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 on some symbols. DMRS can be added on some symbols according to different DMRS mapping types. Among them, the added DMRS can be considered as the DMRS that the second time-frequency resource has more than the first time-frequency resource. For example, the mapping types of DMRS can be divided into mapping type A and mapping type B. Among them, mapping type A can determine a certain symbol based on a slot. Mapping type B can determine a certain symbol based on a physical channel.

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

[0205] For example, if mapping type B is used to determine the added DMRS, based on the time-frequency resource corresponding to the physical channel to be transmitted, it can be determined that DMRS is added on the 2nd symbol in the time-frequency resource. Or, it can be determined that DMRS is added on the 2nd and 3rd symbols in the time-frequency resource. Or, it can be determined that DMRS is added on the middle symbol in the time-frequency resource. Or, it can be determined that DMRS is added on the last symbol in the time-frequency resource. Among them, for the middle symbol in the time-frequency resource, assuming that the time-frequency resource corresponding to the physical channel occupies 5 symbols, the 3rd symbol can be the middle symbol; assuming that the time-frequency resource corresponding to the physical channel occupies 10 symbols, the 5th and 6th symbols can be the middle symbols.

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

[0207] In some examples, refer to Figure 11Schematic diagram of resource mapping shown. Compared with Figure 10 Similarly, 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, there is 1 RE mapped with DMRS in every 2 REs. And for full-duplex time-frequency resources, it can be seen that DMRS is newly added on the third symbol in the physical channel. And the frequency-domain density of the newly added DMRS on this symbol can also be 1 / 2. That is to say, although the symbol positions occupied by DMRS on full-duplex time-frequency resources are more than those 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 that the frequency-domain density of DMRS is the same and the frequency-domain positions of DMRS are the same. Refer to Figure 12 As shown, on full-duplex time-frequency resources, the frequency-domain positions occupied by DMRS on the first symbol and the third symbol corresponding to the physical channel are the same. In this case, the DMRS on the third symbol can be not separately indicated.

[0209] In some examples, the frequency-domain density of DMRS in different time-frequency resources is the same, which can be that the frequency-domain density of DMRS is the same and the frequency-domain positions of DMRS are different. For example, refer to Figure 11 As shown, on full-duplex time-frequency resources, 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 separately indicated. For example, indicate the starting position of DMRS on the third symbol in the physical channel corresponding to full-duplex time-frequency resources.

[0210] It can be understood that considering that the second time-frequency resource can be a full-duplex area with relatively serious interference. While ensuring that the frequency-domain density of DMRS remains unchanged, different time-domain densities are configured for DMRS on different time-frequency resources. For example, making the time-domain density of DMRS on the second time-frequency resource higher than that of DMRS on the first time-frequency resource is beneficial for the receiving end to better analyze the data transmitted in this part of the frequency band.

[0211] Case 4:

[0212] 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 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 to say, for the frequency domain, a greater frequency domain density can be given to the second time-frequency resource. For the time domain, a greater time domain density can be given to the second time-frequency resource.

[0214] Reference Figure 13 , which is equivalent to combining the Figure 10 and Figure 11 schemes. For the time-frequency resources of full-duplex, a higher frequency domain density of DMRS can be given, such as 2 / 3. For the time-frequency resources of non-full-duplex, a lower frequency domain density of DMRS can be given, such as 1 / 2. Moreover, for the time-frequency resources of full-duplex, the number of symbols occupied by DMRS can be made more, such as occupying the first symbol, the second symbol, and the third symbol corresponding to the physical channel. For the time-frequency resources of non-full-duplex, the number of symbols occupied by DMRS can be made less, such as occupying the first symbol and the third symbol corresponding to the physical channel. For the specific details, reference can be made to the relevant descriptions in Figure 10 and Figure 11 , and the embodiments of the present application will not elaborate herein.

[0215] It should be noted that in the embodiments of the present application, DMRS can be a single symbol or a double symbol. When configuring the mapping method of DMRS, the type of DMRS symbol can be configured simultaneously, such as a single symbol type or a double symbol type.

[0216] The embodiments of the present application provide various mapping methods of DMRS on different time-frequency resources. By configuring the density of DMRS for the time-frequency resources of full-duplex to be higher than that for the time-frequency resources of non-full-duplex, appropriate DMRS density can be adopted on the corresponding time-frequency resources in different scenarios for transmission. The reliability of parsing data signals based on DMRS on the time-frequency resources of full-duplex and non-full-duplex is improved.

[0217] In the communication method provided by the embodiments of the present application, various mapping methods of DMRS can be configured through the first information, so that DMRS can adopt appropriate mapping methods for mapping on different time-frequency resources. For example, the method may further include: the sending end sending or receiving the first information, where the first information is used to determine the mapping methods corresponding to at least two DMRSs. Among them, the mapping methods corresponding to at least two DMRSs include a first mapping method and a second mapping method, and different duplex types correspond to different mapping methods.

[0218] For example, when the transmitting end is a network device, the transmitting end may generate first information. The transmitting end may send the first information to the terminal to configure the mapping method of the DMRS adopted by the terminal. For another example, when the transmitting end is a terminal, the transmitting end may receive the first information. For example, receive the first information sent by the network device. The transmitting end may determine the mapping method for transmitting the DMRS according to the first information. The transmitting end may map the DMRS on the first time-frequency resource and the second time-frequency resource according to the mapping method, and transmit the DMRS. It can be understood that the transmitting end involved in the embodiments of the present application refers to the device or apparatus that transmits the first signal.

[0219] In some examples, the first information may be a high-layer signaling. For example, it may be a radio resource control (RRC) signaling, a media access control control element (MAC CE), etc.

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

[0221] In some examples, the mapping methods corresponding to at least two DMRSs may be represented in the first information in the form of DMRS parameters. Among them, each DMRS parameter may correspond to a mapping method of a DMRS. For example, different DMRS parameters may be configured in a first information, that is, multiple DMRS parameters are configured through a high-layer signaling, that is, the mapping methods corresponding to at least two DMRSs are configured. For another example, different DMRS parameters may be configured through different first information, that is, each DMRS parameter is configured through an independent high-layer signaling.

[0222] In some embodiments, the first information may be carried in one or more of the following: protocol predefined, 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 still another example, the first information can be carried by a high-layer signaling. For instance, the first information is carried by RRC or MAC CE, etc. For another example, the first information can be carried by a physical-layer signaling. For instance, the first information is carried by downlink control information (DCI), uplink control information (UCI), or sidelink control information (SCI), etc. For still another example, the first information can be configured by a network device and carried by a high-layer signaling. It can be understood that the first information can be carried or configured by any one or more of the above-mentioned ways, and the embodiments of this application do not enumerate them one by one here.

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

[0225] Next, the embodiments of this application will be divided into multiple cases to describe how to indicate the duplex types of different mapping methods.

[0226] Case A:

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

[0228] For example, among the mapping methods corresponding to at least two DMRSs determined by the first information, the duplex type corresponding to the mapping method of each DMRS can be determined based on the protocol predefined. For example, the protocol predefines the DMRS parameters for the time-frequency resources of full duplex, and the density of the resources occupied by the configured DMRS is greater.

[0229] For example, the first information includes 2 DMRS parameters. Among them, the density of the resources occupied by DMRS in DMRS parameter 1 is greater than that of DMRS in DMRS parameter 2. The protocol predefined can be that the full-duplex time-frequency resources adopt DMRS parameter 1 with a higher density of the resources occupied by DMRS.

[0230] For another example, the first information includes three DMRS parameters. Among them, the density of DMRS resource occupation in DMRS parameter 1 is greater than that in DMRS parameter 3, and the density of DMRS resource occupation in DMRS parameter 3 is greater than that in DMRS parameter 2. The protocol pre - definition can be that for the full - duplex time - frequency resources, DMRS parameter 1 with the highest density of DMRS resource occupation is adopted. Or the protocol pre - definition can be that for the full - duplex time - frequency resources, DMRS parameter 1 or DMRS parameter 3 with a density of DMRS resource occupation that is not the lowest is adopted.

[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 at least two mapping methods corresponding to DMRS, and indicate the duplex type corresponding to the mapping method of each DMRS. For instance, the first information includes multiple DMRS parameters, and indicates the duplex type corresponding to each DMRS parameter. Or, multiple first information includes multiple DMRS parameters, where each first information includes one DMRS parameter, and indicates the duplex type corresponding to this DMRS parameter.

[0234] It can be understood that in the embodiments of the present application, by directly indicating the duplex type corresponding to the DMRS parameter in the first information, the sending end can, based on the duplex type, independently select an appropriate DMRS parameter for DMRS mapping.

[0235] Case C:

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

[0237] In some examples, the sending end may also send or receive a second information. Wherein, the second information can indicate the duplex type corresponding to different mapping methods. For example, when the sending end is a network device, the sending end can generate the second information. The sending end can send the second information to the terminal. So that the terminal can determine the duplex type corresponding to the mapping method of each DMRS according to the second information. Or, when the sending end is a terminal, the sending end can receive the second information sent by the network device, and the sending end determines the duplex type corresponding to the mapping method of each DMRS through the second information.

[0238] In some examples, the second information may be a physical layer signaling. For example, the second information may be DCI. Or, the second information may be UCI. Or, 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 transmitting end can indicate, through the second information, which DMRS parameters can be used for the time-frequency resources of full duplex, or which DMRS parameters can be used for the time-frequency resources of non-full duplex.

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

[0241] For example, the second information is carried by high-layer signaling. For instance, the second information is carried by RRC or MAC CE, etc. Also for example, the second information can be carried by physical-layer signaling. For instance, the second information is carried by DCI, UCI or SCI. Still for example, the third information can be carried by high-layer signaling and physical-layer signaling.

[0242] Embodiments of the present application provide various possible forms in which the mapping manner corresponds to the duplex type, and a suitable manner can be selected in different scenarios to indicate the correspondence between the mapping manner and the duplex type. So as to adopt a suitable mapping manner to map any type of signal on the time-frequency resources of full duplex and non-full duplex, ensuring the reliability of signal transmission.

[0243] For indicating the mapping manner of DMRS, embodiments of the present application can configure various mapping manners of DMRS through the first information, so that according to the first information, a suitable mapping manner can be adopted for different time-frequency resources for mapping, ensuring more accurate parsing of data signals according to DMRS on different time-frequency resources.

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

[0245] In some embodiments, the first signal may include DMRS. Among them, DMRS may include first DMRS and second DMRS. The first DMRS is mapped on the first time-frequency resource and the second time-frequency resource. For example, the first DMRS can be mapped on the time-frequency resources of full duplex, and also mapped on the time-frequency resources of non-full duplex. The second DMRS is mapped on the second time-frequency resource. For example, the second DMRS can be mapped on the time-frequency resources of full duplex.

[0246] In some examples, the transmitting end sends or receives third information, which can be used to determine the mapping mode corresponding to the first DMRS. For example, the third information can be RRC signaling. For instance, 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 mode of the first DMRS according to the third information. Also, for 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 mode of the first DMRS through the third information, and the transmitting end can map the first DMRS on the first time-frequency resource and the second time-frequency resource based on the mapping mode of the first DMRS.

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

[0248] For example, the third information is configured through protocol predefined. Also for example, the third information can be configured by a network device. Still for example, the third information can be carried by high-layer signaling. For example, the third information is carried by RRC or MAC CE, etc. Also for example, the third information can be carried by physical-layer signaling. For example, the first information is carried by DCI, UCI, or SCI, etc. Still for example, the third information can be configured by a network device and carried by high-layer signaling. It can be understood that the third information can be carried or configured in any one or more of the above ways, and the embodiments of the present application do not enumerate them one by one here.

[0249] In some examples, the transmitting end sends or receives fourth information, which can be used to determine the mapping mode corresponding to the second DMRS. For example, the fourth information can be MAC CE, DCI signaling, UCI signaling, SCI signaling, etc. For instance, 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 mode of the second DMRS according to the fourth information. Also, for 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 mode of the second DMRS through the fourth information, and the transmitting end can map the second DMRS on the second time-frequency resource based on the mapping mode of the second DMRS.

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

[0251] For example, the fourth information is predefined by a protocol. As another example, the fourth information can be configured by a network device. As still another example, the fourth information can be carried by a high-layer signaling. For instance, the fourth information is carried by RRC, MAC CE, etc. As another example, the fourth information can be carried by a physical-layer signaling. For instance, the fourth information is carried by DCI, UCI, SCI, etc. As still another example, the fourth information can be configured by a network device and carried by a high-layer signaling. It can be understood that the fourth information can be carried or configured by any one or more of the above-mentioned manners, and the embodiments of the present application do not enumerate them one by one herein.

[0252] It can be understood that the second DMRS can be regarded as an additional DMRS. However, it should be understood that the "additional DMRS" involved in the embodiments of the present application refers to the DMRS newly added in the second time-frequency resource based on the first DMRS. That is to say, the "additional DMRS" is the DMRS newly added in the second time-frequency resource based on the first DMRS.

[0253] Reference Figure 14 Referring to the resource mapping schematic diagram shown, it can be seen that the first DMRS is distributed in the full-duplex time-frequency resource and the non-full-duplex time-frequency resource. The second DMRS is only distributed in the second time-frequency resource. After configuring the DMRS in this way, the density of the DMRS in the full-duplex time-frequency resource can be made greater than that in the non-full-duplex time-frequency resource, which is beneficial for the receiving end to better and more accurately analyze the signal transmitted on the full-duplex time-frequency resource.

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

[0255] In some examples, the time-frequency resource symmetric to the second DMRS can be understood as that on the full-duplex time-frequency resource, the same time-frequency resource is used for the uplink, for the downlink, or for two transmission directions of the same communication link. That the time-frequency resource is used for the uplink and for the downlink can be called symmetric to each other, or that it is used for two transmission directions of the same communication link can be called symmetric to each other. For example, for the sidelink (SL) scenario between terminals, the transmission direction of the signal sent by terminal 1 to terminal 2 and the transmission direction of the signal sent by terminal 2 to terminal 1 can be called symmetric.

[0256] Reference Figure 14For the second DMRS in the full-duplex time-frequency resource, rate matching or puncturing can be performed on symmetric time-frequency resources. For example, taking the symmetry between the uplink and the downlink as an example, the uplink time-frequency resource symmetric to the downlink time-frequency resource occupied by the second DMRS can be referred to as the symmetric uplink avoidance resource. Assume that downlink signals and uplink signals are transmitted in the full-duplex time-frequency resource, and the downlink signal includes the second DMRS. If the time-frequency resource occupied by the uplink signal includes the symmetric uplink avoidance resource, then the uplink signal performs rate matching or puncturing on the symmetric uplink avoidance resource.

[0257] Also, for example, the downlink time-frequency resource symmetric to the uplink time-frequency resource occupied by the second DMRS can be referred to as the symmetric downlink avoidance resource. Assume that uplink signals and downlink signals are transmitted in the full-duplex area, and the uplink signal includes the second DMR. If the time-frequency resource occupied by the downlink signal includes the symmetric downlink avoidance resource, then the downlink signal performs rate matching or puncturing on the symmetric downlink avoidance resource. For example, taking the SL scenario as an example, assume that the transmission direction for terminal 1 to send a signal to terminal 2 is direction 1, and the transmission direction for terminal 2 to send a signal to terminal 1 is direction 2, and direction 1 and direction 2 are symmetric to each other. Assume that the time-frequency resource occupied by the second DMRS for direction 1 is referred to as the first avoidance resource, and the time-frequency resource occupied by the second DMRS for direction 2 is referred to as the second avoidance resource. For example, assume that in the full-duplex time-frequency resource, terminal 1 sends a signal to terminal 2, and the signal includes the second DMRS. If the time-frequency resource occupied by the signal sent by terminal 2 to terminal 1 includes the second avoidance resource, then the signal sent by terminal 2 to terminal 1 performs rate matching or puncturing on the second avoidance resource.

[0258] Also, for example, assume that in the full-duplex time-frequency resource, terminal 2 sends a signal to terminal 1, and the signal includes the second DMRS. If the time-frequency resource occupied by the signal sent by terminal 1 to terminal 2 includes the first avoidance resource, then the signal sent by terminal 1 to terminal 2 performs rate matching or puncturing on the first avoidance resource.

[0259] Of course, the specific implementation process of rate matching and puncturing can refer to related technologies, and the embodiments of this application do not make limitations here.

[0260] The embodiments of this application can perform rate matching or puncturing on the time-frequency resource symmetric to the second DMRS, and can flexibly configure the usage mode of the resource for different transmission directions.

[0261] In some embodiments, the fourth information can indicate the position of the newly added symbol. The newly added symbol position includes the second DMRS. And Figure 12Similar to the scenario shown, the second DMRS can also be indicated by different DMRS mapping types. For example, if mapping type A is used to indicate the second DMRS, the fourth information can indicate the 5th, 9th, and 13th symbols in the time slot, which means the second DMRS can be mapped at this position. Of course, the fourth information can also indicate the 6th and 10th symbols in the time slot, or indicate the 7th and 11th symbols. 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 can indicate the 2nd symbol corresponding to the physical channel, which means the second DMRS can be mapped at this position. Of course, the fourth information can also indicate the 2nd and 3rd symbols corresponding to the physical channel, or indicate the symbols in the middle of the physical channel, or indicate the last symbol corresponding to the physical channel, etc. 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. Specifically, reference can be made to Figure 12 the description of the corresponding embodiments in, and the embodiments of the present application will not repeat it here.

[0263] In some embodiments, the fourth information can indicate the newly added frequency-domain density and the starting position. Among them, the second DMRS and the first DMRS are on the same symbol. For example, the fourth information indicates that for the time-frequency resources of full-duplex, DMRS with densities such as 1 / 2, 1 / 4, 1 / 6, or 1 / 3 are newly added. And it can indicate the relative offset of the starting position from the 0th RB of the full-duplex area. For example, it can be offset by 1, 2, 3, or 4, etc. The embodiments of the present application do not limit this.

[0264] In some embodiments, the fourth information can indicate the newly added symbol positions, and can also indicate the newly added frequency-domain density and the starting position.

[0265] In some embodiments, the third information can be a general configuration, and the fourth information can be considered an additional new configuration. Among them, the protocol can pre-define this general configuration for configuring the first DMRS. And the physical layer signaling can indicate the use of this additional new configuration for the time-frequency resources of full-duplex, and this additional new configuration can configure the second DMRS. Configuring the first DMRS and the second DMRS in the manner described in this embodiment makes the overhead of the fourth information smaller and can configure the second DMRS more flexibly.

[0266] The embodiments of the present application can divide different DMRSs through mapping methods, and one or more DMRSs can be mapped on the time-frequency resources of full-duplex and non-full-duplex respectively. Thus, it is ensured that the data signals are more accurately parsed according to the DMRS on different time-frequency resources.

[0267] In the communication method provided by the embodiments of the present application, the first signal may include DMRS. The density of DMRS in different time-frequency resources can be allocated differently while the overall density of DMRS remains unchanged, so as to ensure the reliability of DMRS transmission on different time-frequency resources. In some possible implementation manners, the method may further include: sending or receiving fifth information. The fifth information is used to determine the mapping manner corresponding to DMRS. Wherein, the density of the resources occupied by DMRS is a first value, and the mapping manner corresponding to DMRS is reflected by the following: the density of the resources occupied by DMRS in the second time-frequency resource is greater than the density of the resources occupied by DMRS in the first time-frequency resource.

[0268] In some embodiments, the first signal may include DMRS. The sending end may also send or receive fifth information. Wherein, the fifth information may be used to determine the mapping manner corresponding to DMRS.

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

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

[0271] In some examples, the sending end may be a network device, and the sending end may generate the fifth information. The sending end may send the fifth information to the terminal, so that the terminal can determine the mapping manner corresponding to DMRS according to the fifth information. In other examples, the sending end may be a terminal, and the sending end may receive the fifth information sent by the network device. The sending end may determine the mapping manner corresponding to DMRS through the fifth information.

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

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

[0274] In the embodiments of the present application, different DMRS densities can be allocated to different time-frequency resources while the overall density of DMRS remains unchanged, so as to ensure more accurate parsing of data signals based on DMRS on different time-frequency resources.

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

[0276] In the communication method provided by the embodiments of the present application, the first signal includes a data signal. The reliability of data signal transmission can be ensured by making the data signal map onto different time-frequency resources in sequence according to the mapping priority. Taking different time-frequency resources as the first time-frequency resource and the second time-frequency resource as an example. The data signal maps onto the first time-frequency resource and the second time-frequency resource in sequence.

[0277] In some embodiments, the first signal may include a data signal. Among them, the data signal can map onto different time-frequency resources in sequence. For example, the data signal maps onto the first time-frequency resource and the second time-frequency resource in sequence, that is, it first maps onto the first time-frequency resource and then maps onto the second time-frequency resource.

[0278] It can be understood that assuming 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 that on the non-full-duplex time-frequency resource, therefore, priority is given to mapping the data signal onto 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 signals are mapped onto the full-duplex time-frequency resource.

[0279] In some examples, the process of mapping the data signal onto the time-frequency resource can map onto the corresponding time-frequency resource in sequence according to the order of frequency domain first and then time domain. Refer to Figure 15 , the data signal can first map onto the non-full-duplex time-frequency resource, and on the non-full-duplex time-frequency resource, the data signal can map in sequence according to the order of frequency domain first and then time domain. For example Figure 15Arrow directions on the time-frequency resources of half-duplex. It can be seen that for the first symbol corresponding to the physical channel, the time-frequency resources of half-duplex A are mapped first, and then the time-frequency resources of half-duplex B are mapped. After the mapping of the first symbol is completed, the second symbol is mapped. For example, for the second symbol corresponding to the physical channel, the time-frequency resources of half-duplex B can be mapped first, and then the time-frequency resources of half-duplex A can be mapped. This mapping process is similar to an "S" shape. Among them, within the same symbol, it can be mapped in descending order of frequency domain or in ascending order of frequency domain. It should be clear that Figure 15 The arrows in are only an exemplary description, and the embodiments of the present application do not make limitations here. Similarly, on the time-frequency resources of full-duplex, according to Figure 15 the order of the arrows in, on the first symbol, it is mapped in the order of frequency domain first, and then the second symbol is mapped. It can be understood that the time-frequency resources of half-duplex A and the time-frequency resources of half-duplex B belong to the time-frequency resources of the same half-duplex. If the time-frequency resources of half-duplex A and the time-frequency resources of half-duplex B are observed as a whole, the mapping method is similar to that on the time-frequency resources of full-duplex.

[0280] It can be understood that Figure 15 DMRS is not shown in, but in actual mapping, the data signal will skip the time-frequency resources occupied by DMRS during the mapping process and be mapped on the idle time-frequency resources.

[0281] In the embodiments of the present application, the data signal can be preferentially mapped on the time-frequency resources of half-duplex to ensure the reliability of 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 priorities of the first type of data signal and the second type of data signal are different. The order in which different data signals are mapped on the first time-frequency resource and the second time-frequency resource is determined based on the data priorities.

[0283] In some examples, the data signal can include multiple types of data signals, and the data priorities corresponding to different types of data signals can 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 that of the second type of data signal. For the order in which the first type of data signal and the second type of data signal are mapped on the first time-frequency resource and the second time-frequency resource, it can 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. Then, the first type of data signal can be mapped first, followed by the second type of data signal. That is, the first type of data signal is first mapped onto the time-frequency resources of the non-full-duplex mode. If not all are mapped, the remaining ones are then mapped onto the time-frequency resources of the full-duplex mode. When all the first type of data signals are mapped, the second type of data signal is then mapped. Of course, if all the first type of data signals are completely mapped onto the time-frequency resources of the non-full-duplex mode, assuming there are still remaining unmapped resources in the time-frequency resources of the non-full-duplex mode, the second type of data signal can first be mapped onto the remaining unmapped resources in the time-frequency resources of the non-full-duplex mode, and then onto the time-frequency resources of the full-duplex mode.

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

[0286] It can be understood that the priorities involved in the embodiments of the present application, such as data priority or mapping priority. Describing that the data priority of a certain data signal is higher means that this type of data signal should be mapped more preferentially; and describing that the mapping priority of a certain time-frequency resource is higher means that the data signal is mapped onto this time-frequency resource more preferentially; describing that the mapping priority of a certain time-frequency resource is lower means that the DMRS is mapped onto this time-frequency resource more preferentially. Among them, the higher the mapping priority of the time-frequency resource described in the embodiments of the present application, the smaller the interference of this time-frequency resource. On the contrary, the lower the mapping priority of the time-frequency resource, the more serious the interference of this time-frequency resource. Of course, whether a higher priority value indicates a higher priority or a lower priority value indicates a higher priority can be determined by an appropriate method according to the actual situation, and the embodiments of the present application do not make any limitations here.

[0287] It should be noted that when mapping the DMRS, it can also be considered that the time-frequency resource onto which the DMRS is preferentially mapped has a higher mapping priority. In this case, the higher the mapping priority of the time-frequency resource, the more serious the interference of this time-frequency resource. On the contrary, the lower the mapping priority of the time-frequency resource, the smaller the interference of this time-frequency resource.

[0288] In some examples, the URLLC data signal may also include a first type of URLLC data signal and a second type of URLLC data signal. Among them, the data priority of the first type of URLLC data signal is higher than that of the second type of URLLC data signal. Then, the first type of URLLC data signal can be mapped first, and then the second type of URLLC data signal can be mapped. Suppose there is also an eMBB data signal, and the order of data priorities is: the data priority of the first type of URLLC data signal > the data priority of the second type of URLLC data signal > the data priority of the eMBB data signal. Then, after mapping the second type of URLLC data signal, the eMBB data signal is mapped.

[0289] In some examples, the URLLC data signal may also include an initial transmission URLLC data signal and a retransmission URLLC data signal. Among them, the data priority of the initial transmission URLLC data signal is higher than that of the retransmission URLLC data signal. Then, the initial transmission URLLC data signal can be mapped first, and then the retransmission URLLC data signal can be mapped. Suppose there is also an eMBB data signal, and the order of data priorities is: the data priority of the initial transmission URLLC data signal > the data priority of the retransmission URLLC data signal > the data priority of the eMBB data signal. Then, after mapping the second type of URLLC data signal, the eMBB data signal is mapped.

[0290] For another example, if the initial transmission URLLC data signal includes a first type of initial transmission URLLC data signal and a second type of initial transmission URLLC data signal. Among them, the data priority of the first type of initial transmission URLLC data signal is higher than that of the second type of initial transmission URLLC data signal. Similarly, if the retransmission URLLC data signal includes a first type of retransmission URLLC data signal and a second type of retransmission URLLC data signal. Among them, the data priority of the first type of retransmission URLLC data signal is higher than that of the second type of retransmission URLLC data signal. Suppose there is also an eMBB data signal, and the order of data priorities is: the data priority of the first type of initial transmission URLLC data signal > the data priority of the second type of initial transmission URLLC data signal > the data priority of the first type of retransmission URLLC data signal > the data priority of the second type of retransmission URLLC data signal > the data priority of the eMBB data signal. Then, the mapping can be performed in sequence according to this priority order, starting from the data signal with the highest priority until all data signals are mapped.

[0291] Of course, the data signal can also include more or fewer, and the relationship of data priorities of different types of data signals can be determined according to the actual situation, which is not limited in the embodiments of the present application.

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

[0293] Next, the data signals transmitted 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, and the data signal is transmitted based on the first time-frequency resource and the second time-frequency resource, it can be satisfied that 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.

[0296] In some examples, in order to ensure the reliability of the data signal during the communication process, the data signal can be transmitted in a data retransmission manner. Considering that the interference on the time-frequency resources in full-duplex mode is more serious than that on the time-frequency resources in half-duplex mode. Therefore, more retransmission times can be given to the data signal on the time-frequency resources in full-duplex mode. For example, the number of retransmissions corresponding to the transmission of the data signal on the second time-frequency resource can be greater than the number of retransmissions corresponding to the transmission of the data signal on the first time-frequency resource. Thus, the reliability of the data signal transmitted on the second time-frequency resource is improved.

[0297] For example, the number of retransmissions corresponding to the transmission of the data signal on the first time-frequency resource can be 1 time, and the number of retransmissions corresponding to the transmission of the data signal on the second time-frequency resource can be 2 times. Of course, the embodiments of the present application do not limit the specific number of retransmissions.

[0298] Among them, the number of retransmissions involved in the embodiments of the present application can be considered as only the number of repeated transmissions except for the first transmission, or can be considered as the total number including the first transmission and subsequent repeated transmissions. The embodiments of the present application do not make any limitations in this regard.

[0299] Dimension 2:

[0300] In some embodiments, when the first signal includes a data signal, and the data signal is transmitted based on the first time-frequency resource and the second time-frequency resource, it can be satisfied that 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.

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

[0302] For example, the higher the code rate, the lower the reliability of data signal transmission. Therefore, for different data signals, data signals with higher data priorities may be transmitted using lower code rates. For example, if the data priority of the first type of data signal is higher than that of the second type of data signal, the code rate of the MCS adopted by the first type of data signal may be lower than the code rate of the MCS adopted by 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 priorities may be transmitted using lower modulation orders. For example, if the data priority of the first type of data signal is higher than that of the second type of data signal, the modulation order of the MCS adopted by the first type of data signal may be lower than the modulation order of the MCS adopted by the second type of data signal. For example, the first type of data signal may be modulated using 16-quadrature amplitude modulation (QAM), and the second type of data signal may be modulated using quadrature phase shift keying (QPSK).

[0304] For example, if both the code rate and the modulation order are different, appropriate code rates and modulation orders may be selected according to the actual situation to meet the reliability requirements of different data signals. For details, reference may be made to the description of the above embodiments, and the embodiments of the present application will not be elaborated herein.

[0305] Dimension 3:

[0306] In some embodiments, in the case where the first signal includes a data signal, transmitting the data signal based on the first time-frequency resource and the second time-frequency resource may satisfy that 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.

[0307] In some examples, to ensure the reliability of data signals during communication, data signals transmitted on different time-frequency resources may be transmitted 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 priorities can be transmitted using a smaller number of layers. For example, if the data priority of the first type of data signal is higher than that of the second type of data signal, the number of layers used for the first type of data signal can be made less than the number of layers used for the second type of data signal.

[0309] For example, the transmitting end can send or receive signaling for indicating the number of layers. For instance, the signaling can respectively indicate the number of layers of data signals on different time-frequency resources. For example, it indicates that the number of layers of the data signal on the first time-frequency resource is 2, and the number of layers of the data signal on the second time-frequency resource is 1. Or, the protocol can pre-define the relationship of the number of layers of data signals on different time-frequency resources, and the signaling only indicates the number of layers. For example, the protocol can pre-define the relationship that the number of layers of the data signal on the first time-frequency resource is 1 and the number of layers of 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 embodiments of the present application, data signals can have different configurations on non-full-duplex time-frequency resources and full-duplex time-frequency resources, ensuring the reliability of data signal transmission on the corresponding time-frequency resources.

[0311] In the communication method provided by the embodiments of the present application, different time-frequency resources are determined by any of the following methods: pre-defined by the protocol; determined based on channel measurement results.

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

[0313] In some embodiments, the transmitting end can determine the first time-frequency resource and the second time-frequency resource according to channel measurement results. Or, the receiving end can determine the first time-frequency resource and the second time-frequency resource according to channel measurement results. The receiving end can inform the transmitting end of the division situation of the time-frequency resources.

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

[0315] Embodiments of the present application provide various methods for determining time-frequency resources, which can be applied to the division of time-frequency resources in different scenarios to improve universality.

[0316] Figure 16 It is another flowchart of a communication method provided by an embodiment of the present application.

[0317] As Figure 16 shown, this communication process can be applicable to but not limited to Figure 1 , Figures 4 to 8 the communication scenarios shown. This method can be applied to the sending end. Among them, the sending end can be various possible devices in the above scenarios, such as terminals, network devices, satellites, IAB nodes, IAB host nodes, etc., which are not limited in the embodiments of the present application. This method can include the following steps:

[0318] S201, the sending end determines at least two time-frequency resources.

[0319] In some embodiments, the sending end can determine at least two time-frequency resources. Among them, the mapping priorities corresponding to N time-frequency resources among the at least two time-frequency resources are different. N is a positive integer greater than or equal to 2.

[0320] For example, assume that the sending end determines 4 time-frequency resources. For example, the mapping priorities corresponding to each of the 4 time-frequency resources are different. Or, the mapping priorities corresponding to 3 of the 4 time-frequency resources are different, and the mapping priority corresponding to the remaining one time-frequency resource is the same as that of one of the 3 time-frequency resources.

[0321] In some embodiments, at least two time-frequency resources can be determined according to channel measurement results and at least one measurement result threshold.

[0322] In some examples, the sending end can determine at least two time-frequency resources based on the channel measurement results obtained from channel measurement and at least one measurement result threshold. For example, the time-frequency resources corresponding to the physical channel are divided into at least two time-frequency resources.

[0323] For example, the network device can directly measure based on the SRS sent by the terminal to obtain the channel measurement results. Or, the network device receives the CSI report or CLI report sent by the terminal and obtains the channel measurement results according to the CSI report or CLI report. Among them, the CSI report can be measured by the terminal based on the CSI-RS sent by the network device. The network device divides the time-frequency resources corresponding to the physical channel into at least two time-frequency resources according to the obtained channel measurement results and at least one preset measurement result threshold.

[0324] In some examples, the channel measurement result may be at least one of received signal strength indication (RSSI), reference signal receiving power (RSRP), reference signal received quality (RSRQ), and 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 this application.

[0325] Reference Figure 17 , the measurement result threshold 1 and the measurement result threshold 2 may be preset measurement result thresholds. The network device may divide the time-frequency resources corresponding to the physical channel according to the channel measurement result, the measurement result threshold 1, and the measurement result threshold 2. For example Figure 17 is also divided into 3 portions of time-frequency resources. Among them, the channel measurement result corresponding to one portion of the 3 portions of time-frequency resources is less than the measurement result threshold 1; the channel measurement result corresponding to another portion of time-frequency resources is less than the measurement result threshold 2 and greater than or equal to the measurement result threshold 1; the channel measurement result corresponding to the last portion of time-frequency resources is greater than or equal to the measurement result threshold 2. Of course, for the time-frequency resources whose channel measurement result is equal to the measurement result threshold 1, they may also be divided together with the time-frequency resources less than the measurement result threshold 1; similarly, for the time-frequency resources whose channel measurement result is equal to the measurement result threshold 2, they may also be divided together with the time-frequency resources less than the measurement result threshold 2, which are not limited in the embodiments of this application.

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

[0327] It should be noted that for the above-mentioned channel measurement results, in some scenarios, it may be necessary to determine the corresponding mapping priorities for different time-frequency resources according to different situations of whether it is measured by its own device or other devices, rather than only determining the corresponding mapping priorities for different time-frequency resources according to the numerical magnitude of the channel measurement result.

[0328] In some examples, reference Figure 17Three time-frequency resources can be divided into a first mapping priority, a second mapping priority, and a third mapping priority. For example, the larger the value, the higher the mapping priority can be represented. For another example, the smaller the value, the higher the mapping priority can be represented. 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 can be obtained according to a protocol predefined manner.

[0330] In some examples, for example, the protocol can predefine at least two time-frequency resources. The network device can determine the mapping priority 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, namely time-frequency resource 1, time-frequency resource 2, and time-frequency resource 3. The network device can determine, according to the channel measurement result, that the mapping priority corresponding to time-frequency resource 1 is greater than the mapping priority corresponding to time-frequency resource 3, which is greater than the mapping priority corresponding to time-frequency resource 2.

[0332] In some examples, the order of the mapping priorities obtained according to different measurement results may be different. Therefore, Table 1 and Table 2 can be referred to, and different serial numbers are used to represent different priority rankings. Among them, Table 1 takes two time-frequency resources as an example, and Table 2 takes three time-frequency resources as an example for description, but the embodiments of the present application do not limit the specific number of time-frequency resources, as well as the corresponding relationship between the priority ranking of each time-frequency resource and the serial number.

[0333] Table 1

[0334] Serial number Priority ranking 0 Time-frequency resource 1, Time-frequency resource 2 1 Time-frequency resource 2, Time-frequency resource 1

[0335] Table 2

[0336] Serial number Priority ranking 0 Time-frequency resource 1, Time-frequency resource 2, Time-frequency resource 3 1 Time-frequency resource 1, Time-frequency resource 3, Time-frequency resource 2 2 Time-frequency resource 2, Time-frequency resource 1, Time-frequency resource 3 3 Time-frequency resource 2, Time-frequency resource 3, Time-frequency resource 1 4 Time-frequency resource 3, Time-frequency resource 1, Time-frequency resource 2 5 Time-frequency resource 3, Time-frequency resource 2, Time-frequency resource 1

[0337] In the embodiments of the present application, the higher the mapping priority of the time-frequency resource, the smaller the interference of the time-frequency resource can be represented.

[0338] The embodiments of the present application provide various determination methods for different time-frequency resources, which can be applicable to the division of time-frequency resources in different scenarios and improve the universality.

[0339] In some embodiments, if the sending end is a network device, the sending end can also send indication information for indicating at least two time-frequency resources.

[0340] In some examples, referring to Table 1 and Table 2, the indication information sent by the sending end can also carry the serial numbers in Table 1 and Table 2 to indicate the relationship of the mapping priorities of different time-frequency resources.

[0341] In some embodiments, if the sending end is a terminal, the sending end may also receive indication information for indicating at least two time-frequency resources.

[0342] In some examples, referring to Table 1 and Table 2, the indication information received by the sending end may also carry the serial numbers in Table 1 and Table 2, so that the receiving end can determine the mapping priority relationship of different time-frequency resources according to the serial number.

[0343] In some examples, the indication information involved in the above examples may be used to indicate the frequency-domain positions of at least two time-frequency resources. For example, the starting position and the continuous width of the frequency-domain position are indicated. For another example, the ending position and the continuous width of the frequency-domain position may be indicated.

[0344] The embodiments of the present application can indicate different time-frequency resources through indication information, and can allocate multiple time-frequency resources more flexibly.

[0345] In some embodiments, the duplex types corresponding to M time-frequency resources among at least two time-frequency resources include full duplex and half duplex. The duplex types corresponding to the other time-frequency resources except the M time-frequency resources among at least two time-frequency resources include half duplex. Wherein, M is a positive integer.

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

[0347] In some embodiments, the duplex types corresponding to M time-frequency resources among 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 at least two time-frequency resources include full duplex and half duplex. Wherein, M is a positive integer.

[0348] In other words, some of the at least two time-frequency resources, such as M time-frequency resources. Each of the M time-frequency resources may be a full-duplex time-frequency resource. The remaining time-frequency resources among the at least two time-frequency resources except the M time-frequency resources may include full-duplex time-frequency resources and half-duplex time-frequency resources.

[0349] In some embodiments, the duplex types corresponding to M time-frequency resources among 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 at least two time-frequency resources include half duplex. Wherein, M is a positive integer.

[0350] In other words, a part of the at least two time-frequency resources, such as M time-frequency resources. Each of the M time-frequency resources can be a full-duplex time-frequency resource. The remaining time-frequency resources among the at least two time-frequency resources, except for the M time-frequency resources, can be non-full-duplex time-frequency resources.

[0351] Embodiments of the present application provide various possible forms of duplex types corresponding to different time-frequency resources, so that signals can be transmitted according to the mapping priority of the time-frequency resources on time-frequency resources of any possible duplex type, thereby ensuring the reliability of signal transmission.

[0352] S202. The sending end sends a first signal based on at least two time-frequency resources.

[0353] In some embodiments, the sending end can send a first signal according to the at least two time-frequency resources determined in S201.

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

[0355] In some embodiments, the first signal may include a data signal.

[0356] In some embodiments, the first signal may include DMRS and a data signal.

[0357] Embodiments of the present application provide various possible forms of the first signal, which can ensure the reliability of signal transmission of corresponding types in different scenarios.

[0358] In some embodiments, the density of DMRS is determined based on the mapping priority corresponding to at least two time-frequency resources.

[0359] For example, the density of DMRS mapped on different time-frequency resources can be determined according to the mapping priority corresponding to the corresponding time-frequency resources. That is, for each of the at least two time-frequency resources, when determining the density of DMRS of the time-frequency resource, it needs to be determined based on the mapping priority corresponding to the time-frequency resource.

[0360] For example, for time-frequency resources with less interference, such as time-frequency resources with a higher mapping priority, a lower DMRS density can be given. Considering that the interference of such time-frequency resources is less, more DMRS is not required for auxiliary demodulation optimization. For time-frequency resources with greater interference, such as time-frequency resources with a lower mapping priority, a greater DMRS density can be given. Considering that the interference of such time-frequency resources is more serious, more DMRS is required for auxiliary demodulation optimization.

[0361] Of course, for the specific determination method of the DMRS density and the magnitude relationship of the DMRS density among time-frequency resources, reference can be made to Figures 9 to 15For the described embodiments, the embodiments of the present application will not be elaborated herein again.

[0362] Embodiments 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, so as to ensure that the data signal can be more accurately parsed based on DMRS on the time-frequency resource.

[0363] In some embodiments, the order of mapping the data signal on at least two time-frequency resources is determined based on the mapping priorities corresponding to the at least two time-frequency resources. That is to say, the sending end can determine the order of mapping the data signal on at least two time-frequency resources according to the mapping priorities corresponding to the at least two time-frequency resources.

[0364] For example, for time-frequency resources with less interference, such as time-frequency resources with higher mapping priorities, the data signal can be preferentially considered to be mapped to such time-frequency resources to ensure the reliability of data signal transmission. Of course, for the specific order of mapping the data signal on multiple time-frequency resources, reference can be made to Figures 9 to 15 For the described embodiments, the embodiments of the present application will not be elaborated herein again.

[0365] In the embodiments of the present application, the data signal can determine the mapping order on different time-frequency resources according to the mapping priority to ensure the reliability of data signal transmission.

[0366] In some embodiments, the data signal has a data priority, and the order of mapping the data signal on 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. That is to say, the sending end can determine the order of mapping different types of data signals on at least two time-frequency resources according to the data priority and the mapping priorities corresponding to the at least two time-frequency resources.

[0367] For example, assuming that the higher the data priority, the more important the data, then the data signal with a higher data priority can be preferentially considered for mapping. And during the process of mapping the data signal with a higher data priority, it is preferentially considered to be mapped to a time-frequency resource with less interference, such as a time-frequency resource with a higher mapping priority, to ensure the reliability of data signal transmission. Of course, for the specific order of mapping different types of data signals on multiple time-frequency resources, reference can be made to Figures 9 to 15 For the described embodiments, the embodiments of the present application will not be elaborated herein again.

[0368] Different types of data signals in the embodiments of the present application can have different data priorities. The mapping order of different data signals can be determined according to different data priorities to ensure the reliability of transmission of different types of data signals on different time-frequency resources.

[0369] It can be seen that based on Figure 16For the described solution, in the embodiments of the present application, different mapping priorities may correspond to multiple different time-frequency resources respectively. Signals can be transmitted on different time-frequency resources based on different mapping priorities, thereby ensuring the reliability of signal transmission.

[0370] It should be noted that the above-mentioned multiple embodiments can be combined and the combined solution can be implemented. Optionally, some operations in the processes of the method embodiments are optionally combined, and / or the order of some operations is optionally changed. Moreover, 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. The steps can also be in other execution orders. It is not intended to indicate that the execution order is the only order in which these operations can be executed. Those of ordinary skill in the art will think of various ways to reorder the operations herein. Additionally, it should be pointed out that the process details involved in a certain embodiment herein are equally applicable to other embodiments in a similar manner, or different embodiments can be combined and used.

[0371] It can be understood that, in order to implement the functions in the above embodiments, the base station and the terminal include the corresponding hardware structures and / or software modules for performing each function. Those skilled in the art should easily realize that, in combination with the units and method steps of each example 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 certain function is executed in the manner of hardware or computer software driving the hardware depends on the specific application scenario and design constraints of the technical solution.

[0372] Figure 18 and Figure 19 FIG. 12 is a schematic structural diagram of a possible communication device provided by the embodiments of the present application. These communication devices can be used to implement the functions of any possible transmitting end in the above method embodiments, and thus can also achieve the beneficial effects possessed by the above method embodiments. In the embodiments of the present application, the communication device can be a transmitting end or a module applied to the transmitting end. For example, a chip.

[0373] As Figure 18 shown, the communication device 1800 includes a processing unit 1810.

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

[0375] In a possible implementation manner, the communication device 1800 may further include a storage unit 1830.

[0376] In a possible implementation manner, the communication device 1800 may further include a transceiver unit 1820 and a storage unit 1830.

[0377] The communication device 1800 is used to implement the above Figure 9 and Figure 16 functions of any node in the method embodiments shown.

[0378] When the communication device 1800 is used to implement the Figure 9 functions of any node in the method embodiments shown: The processing unit 1810 is used to determine a first time-frequency resource and a 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 further used to execute Figure 9 all operations other than the transceiver operations performed by the communication device 1800 in the embodiments shown, and / or other processes for supporting the technologies described herein. The storage unit 1830 is used to store any data, computer instructions, and / or computer programs that may be involved in the embodiments of the present application.

[0379] When the communication device 1800 is used to implement the Figure 16 functions of any node in the method embodiments shown: 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 further used to execute Figure 16 all operations other than the transceiver operations performed by the communication device 1800 in the embodiments shown, and / or other processes for supporting the technologies described herein. The storage unit 1830 is used to store any data, computer instructions, and / or computer programs that may be involved in the embodiments of the present application.

[0380] For a more detailed description of the above processing unit 1810 and transceiver unit 1820, reference may be made to the relevant descriptions in Figure 9 and Figure 16 the method embodiments shown. The above processing unit 1810 and transceiver unit 1820 may also perform other steps. For specific implementations, reference may be made to the method embodiments, which will not be elaborated here.

[0381] Optionally, the transceiver unit 1820 may be a transceiver, and the transceiver may include an antenna, a radio frequency circuit, etc.

[0382] The processing unit 1810 may be a processor (or, processing circuit), such as a baseband processor, and the baseband processor may include one or more CPUs.

[0383] As Figure 19 shown, the communication device 1900 includes at least one processor 1910. In a possible implementation, the communication device 1900 may further include an interface circuit 1920.

[0384] In a possible implementation, the communication device 1900 may further include a memory 1930.

[0385] In a possible implementation, the communication device 1900 may further include a memory 1930 and an interface circuit 1920.

[0386] 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 can be understood 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, or input data required for the processor 1910 to run the computer instructions, or data generated after the processor 1910 runs the computer instructions.

[0387] When the communication device 1900 is used to implement Figure 9 and Figure 16 the method shown, the processor 1910 may be used to implement the functions of the above-mentioned processing unit 1810, and / or the interface circuit 1920 may be used to implement the functions of the above-mentioned transceiver unit 1820, and / or the memory 1930 may be used to implement the functions of the above-mentioned storage unit 1830.

[0388] Figure 18 or Figure 19 The communication device shown in Figure 18 or Figure 19 is only an example, and in practical applications, the communication device may have more or fewer components than those shown in

[0389] In the embodiments of the present application, when entity A sends information to entity B, it may be that A directly sends it to B, or A indirectly sends it to B through other entities. Similarly, when entity B receives information from entity A, it may be that entity B directly receives the information sent by entity A, or entity B indirectly receives the information sent by entity A through other entities. Here, entity A and B may be RAN nodes or terminals, or modules inside RAN nodes or terminals. The sending and receiving of information may be information interaction between an RAN node and a terminal, for example, information interaction between a network device and a terminal; the sending and receiving of information may also be information interaction between two RAN nodes, for example, information interaction between a CU and a DU; the sending and receiving of information may further be information interaction between different modules inside a device, for example, information interaction between a terminal chip and other modules of the terminal, or information interaction between a network device chip and other modules in the network device.

[0390] In an embodiment of the present application, a network device sends a downlink signal or downlink information to a terminal device, and the downlink information is carried on a downlink channel; the terminal device sends an uplink signal or uplink information to the network device, and the uplink information is carried on an uplink channel. In order to communicate with the network device, the terminal device needs to establish a wireless connection with a cell controlled by the network device. A cell that has established a wireless connection with the terminal device is called the serving cell of the terminal device.

[0391] It can be understood that in the embodiments of the present application, PDSCH and PUSCH are only examples of a downlink data channel and an uplink data channel. In different systems and different scenarios, the data channel and the control channel may have different names, and the embodiments of the present application do not limit this.

[0392] It can be understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), 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.

[0393] The method steps in the embodiments of the present application may be implemented in hardware or in software instructions executable by a processor. The software instructions may be composed of corresponding software modules, and the software modules may be stored in a random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, register, hard disk, removable 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 may also be a component of the processor. The processor and the storage medium may be located in an ASIC. Additionally, the ASIC may be located in a network device or a terminal. The processor and the storage medium may also exist as discrete components in a network device or a terminal.

[0394] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in the form of a computer program product in whole or in part. 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 executed 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 devices. The computer program or instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer program or instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center in a wired or wireless manner. 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 a data center integrating one or more available media. The available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it may also be an optical medium, such as a digital video disc; or it may be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both volatile and non-volatile types of storage media.

[0395] In various embodiments of the embodiments of the present application, if there is no special description and logical conflict, 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 new embodiments according to their inherent logical relationships.

[0396] It can be understood that the various numerical numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The magnitude of the serial numbers of the above processes does not mean the sequence of execution. The execution sequence of each process should be determined by its function and internal 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 have 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, wherein 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: Sending or receiving first information for determining 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, wherein 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: Sending or receiving second information for indicating the duplex type corresponding to the mapping method.

7. The method according to claim 2, wherein 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 for determining 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 to 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 resource 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 to 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 to 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; Transmitting the data signal based on the first time-frequency resource and the second time-frequency resource satisfies at least one of the following: 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 1-12, 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: Determine the at least two time-frequency resources according to the channel measurement result and at least one measurement result threshold; Obtain the at least two time-frequency resources according to the protocol predefined 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 used for receiving and / or sending signals, and the processing module is configured to enable the method according to any one of claims 1 to 13 to be executed, or the processing module is configured to enable the method according to any one of claims 14 to 21 to be executed.

23. A communication device, characterized in that, Includes: At least one processor and a communication interface, the communication interface is used for receiving and / or sending signals, and the processor is configured to enable the method according to any one of claims 1 to 13 to be executed, or the processor is configured to enable the method according to any one of claims 14 to 21 to be executed.

24. A communication device, characterized in that, Includes: At least one processor and a memory, the memory is used for storing 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 sending end and a receiving end that execute the method according to any one of claims 1 to 13, or a sending end and a receiving end 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 the 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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