Communication method and device, and computer storage medium

Abstract

The embodiment of the invention provides a communication method, equipment and a computer storage medium. According to the communication method provided by the embodiment of the invention, under the condition that the transmission of the multi-antenna port CSI-RS possibly occurs in a mixed time slot formed by non-SBFD and SBFD symbols and crosses the two symbols, the orthogonality damage in a multi-port CDM group caused by the fact that the power consistency and the phase continuity cannot be maintained between the two symbols is considered; according to the embodiment of the invention, the processing of the CSI-RS is clearly stipulated, internal splitting processing is carried out on the CDM group, and the part of the CDM group after internal splitting has power consistency and phase continuity, so that the terminal equipment effectively receives and analyzes the CSI-RS resources, and the accuracy of processing and receiving data by the terminal equipment is improved.

Description

Technical Field

[0001] This application relates to the field of wireless communication, and more particularly to a communication method, device, and computer storage medium. Background Technology

[0002] With the development of wireless communication technology, the number of users has increased significantly, leading to a substantial rise in user activity on wireless communication networks and a continuous increase in the volume of data transmitted via wireless communication. However, the basic hardware infrastructure for wireless communication cannot be expanded indefinitely. Therefore, it is necessary to utilize the limited wireless communication infrastructure to achieve efficient data transmission. Consequently, transmission methods such as multiplexing channels for signal transmission and simultaneous transmission of uplink and downlink data have emerged in wireless communication technology, improving data transmission efficiency. However, while improving data transmission efficiency, ensuring stable communication and accurate data reception remains crucial. Summary of the Invention

[0003] This application provides a communication method, device, and computer storage medium that can improve the efficiency of communication data transmission while ensuring accurate reception of communication data.

[0004] In a first aspect, embodiments of this application provide a communication method, comprising the following steps performed by a terminal device: obtaining information on the packet processing mode of at least one code division multiplexing (CDM) group; each of the at least one CDM group carries subband full-duplex (SBFD) symbols and / or non-subband full-duplex (non-SBFD) symbols; the packet processing mode is used to instruct the terminal device on how to split the internal structure of a single CDM group in the at least one CDM group, wherein each CDM group, after being split according to the packet processing mode, yields at least one CDM group portion, the phase continuity of different symbols in each CDM group portion satisfies a first preset condition, and the power consistency satisfies a second preset condition; receiving channel state information reference signals (CSI-RS) from multiple antenna ports; the channel state information reference signals are generated using the code division multiplexing mode, and the channel state information reference signals include at least one CDM group; and processing the channel state information reference signals according to the packet processing mode.

[0005] In the embodiments of this application, the information on the grouping processing method of at least one CDM group may be different, the same, or partially different for different CDM groups.

[0006] Phase continuity and power consistency can be determined using various methods.

[0007] For example, when the waveform of a signal changes smoothly over time without any jumps or breaks, it can be considered phase continuous. If the waveform of a signal changes with time and there are jumps or breaks, the degree of the jumps or breaks can be calculated using the waveform description function to determine the phase continuity of the signal. In this embodiment, the rate of change of the signal in the CDM group can be determined by the derivative of the waveform description function at each time point. When the absolute value of the difference between the rates of change of adjacent symbols in the CDM group is within a preset range, the signal can be considered continuous. Otherwise, the phase continuity of different symbols in the CDM group can be considered not to meet the first preset condition. Alternatively, when the ratio of the rates of change of adjacent symbols in the CDM group is within a preset range, the phase continuity of different symbols in the CDM group can be considered to meet the first preset condition; otherwise, the phase continuity of the signal can be considered not to meet the first preset condition.

[0008] For example, if the absolute value of the power difference between adjacent symbols in a CDM group is within a preset range, the power consistency of different symbols in the CDM group can be considered to meet the second preset condition; otherwise, the power consistency can be considered not to meet the second preset condition. Alternatively, if the power ratio of adjacent symbols in a CDM group is within a preset range, the power consistency of different symbols in the CDM group can be considered to meet the second preset condition; otherwise, the power consistency can be considered not to meet the second preset condition.

[0009] Phase continuity between different symbols in a CDM group can include phase continuity between adjacent symbols in the CDM group. Power consistency between different symbols in a CDM group can include power consistency between adjacent symbols in the CDM group.

[0010] In this embodiment, the terminal device obtains information on the packet processing method under different CDM group conditions when or before receiving the CDM group sent by the network device. Then, according to the packet processing method, it performs intra-group splitting processing on the CDM group included in the CSI-RS. After the splitting processing, the corresponding symbols of the CDM group portion of the CDM group have higher power consistency and phase continuity in the time domain. This reduces the impact on the accuracy of channel estimation operations on the signal caused by the power inconsistency and / or phase discontinuity of the transmitted symbols due to different symbols when the terminal device processes the CDM group. This helps the terminal device to receive the communication data sent by the network device more accurately.

[0011] In one embodiment, the group processing method includes: in a first case, processing the CDM group portion located in a first resource region and / or the CDM group portion located in a second resource region according to the original type of the CDM group; the first case includes: the transmit power of the SBFD symbol and the transmit power of the non-SBFD symbol satisfying a first preset condition, and the signal phase continuity of the SBFD symbol and the non-SBFD symbol satisfying a second preset condition; the first resource region is the frequency region of the non-SBFD symbol that is the same as the downlink subband of the SBFD symbol, and the second resource region is the downlink subband of the SBFD symbol.

[0012] When referring to a first resource region or a second resource region in other embodiments of this application, the first resource region or the second resource region expresses the corresponding meaning in the above embodiments.

[0013] Through the above implementation methods, when the phase continuity and power consistency of the symbols used to carry CDM are high, the frequency regions in the CDM group other than the frequency regions with the same frequency as the uplink subband can be processed according to the original type of the CDM group, reducing the operation steps of the terminal equipment and simplifying the operation process of the terminal equipment when processing the CDM group.

[0014] In one embodiment, the original type of each CDM group in the at least one CDM group is frequency domain code division multiplexing 2, code division multiplexing 4-frequency domain 2-time domain 2 or code division multiplexing 8-frequency domain 2-time domain 4.

[0015] In this embodiment, frequency domain code division multiplexing 2 generally does not have inconsistent power or discontinuous phase of the symbols carrying the CDM group. When the type of the CDM group is frequency domain code division multiplexing 2, there is generally no lower type of the original type, and it will not be processed according to the lower type of frequency domain code division multiplexing 2.

[0016] In one embodiment, the grouping processing method includes: in the first case, for the CDM group portion located in the third resource region, processing is performed according to the lower type of the original type of the CDM group; the number of symbols included in the lower type of CDM group is less than the number of symbols included in the original type of CDM group; wherein, the third resource region is the frequency region of the non-SBFD symbols that is the same as the uplink subband of the SBFD symbols.

[0017] When a third resource region is mentioned in other embodiments of this application, the third resource region expresses the meaning corresponding to that in the above embodiments.

[0018] In the above embodiments, since the frequency regions with the same frequency position as the SBFD symbol and the third resource region can only be used for uplink and cannot be mapped to CSI-RS, the CDM group of the corresponding third resource region is processed using the lower type of the original type of the CDM group to improve the channel estimation accuracy of the CDM group of the third resource region.

[0019] In one embodiment, the group processing method includes: in a second case, when at least one of the CDM groups is carried only by one of SBFD symbols and non-SBFD symbols, the at least one CDM group is processed according to the original type of the CDM group; wherein the second case includes: the consistency between the transmission power of the SBFD symbol and the transmission power of the non-SBFD symbol does not meet a first preset condition, and / or the continuity between the signal phase of the SBFD symbol and the signal phase of the non-SBFD symbol does not meet a second preset condition.

[0020] In this embodiment of the application, if the symbol used to carry the CDM group is the same as that of SBFD or non-SBFD symbols, the symbols carrying the CDM group generally do not have inconsistent power or discontinuous phase. In this case, the original type of CDM group can be processed to reduce the operational complexity of the terminal device.

[0021] In one embodiment, the packet processing method includes: in a second case, when at least one of the CDM groups is carried only by one of SBFD symbols and non-SBFD symbols, processing is performed according to the original type of the CDM group for the CDM group portion located in the first resource region and the CDM group portion located in the third resource region; processing is performed using continuous or non-contiguous port numbers for the CDM group portion located in the second resource region; wherein, the first resource region is the frequency region of the non-SBFD symbols that is the same as the downlink subband of the SBFD symbols, the second resource region is the downlink subband of the SBFD symbols, and the third resource region is the frequency region of the non-SBFD symbols that is the same as the uplink subband of the SBFD symbols.

[0022] In this embodiment, if the symbols carrying a CDM group do not simultaneously include SBFD symbols and non-SBFD symbols, it indicates that the CDM group does not cross the boundary between SBFD symbols and non-SBFD symbols. The CDM group can be processed according to its original type. Furthermore, the processing of the CDM group can be determined based on whether the SBFD symbols and non-SBFD symbols use different initial port numbers, specifying whether to use consecutive or non-consecutive port numbers. If the SBFD symbols and non-SBFD symbols use the same initial port number, the CDM group is processed using non-consecutive port numbers; if the SBFD symbols and non-SBFD symbols use different initial port numbers, the CDM group is processed using consecutive port numbers.

[0023] In one embodiment, the packet processing method includes: in a second case, when at least one CDM group is carried by SBFD symbols and non-SBFD symbols, the CDM group portion of the at least one CDM group is processed according to the lower-level type of the original type of the at least one CDM group; wherein the number of symbols used to carry the lower-level type of CDM group is less than the number of symbols used to carry the original type of CDM group; the second case includes: the transmission power of the SBFD symbol and the transmission power of the non-SBFD symbol are inconsistent, and / or the signal phase of the SBFD symbol and the signal phase of the non-SBFD symbol are discontinuous.

[0024] In this embodiment of the application, if the symbols carrying a CDM group include both SBFD symbols and non-SBFD symbols, the symbols carrying the CDM group may have inconsistent power or discontinuous phase. Using the lower-level type of the CDM group to process the CDM group can improve the accuracy of the terminal device in processing the CDM group.

[0025] In one implementation, when the original type of the CDM group is Code Division Multiplexing 4-Frequency Domain 2-Time Domain 2, the lower type of the original type is Frequency Domain Code Division Multiplexing 2; when the original type of the CDM group is Code Division Multiplexing 8-Frequency Domain 2-Time Domain 4, the lower type of the original type is Code Division Multiplexing 4-Frequency Domain 2-Time Domain 2 or Frequency Domain Code Division Multiplexing 2.

[0026] In one implementation, when the number of SBFD symbols and the number of non-SBFD symbols are equal, the lower-level type of code division multiplexing 8-frequency domain 2-time domain 4 is code division multiplexing 4-frequency domain 2-time domain 2, and the lower-level type of code division multiplexing 4-frequency domain 2-time domain 2 is frequency domain code division multiplexing 2.

[0027] If the number of SBFD symbols and the number of non-SBFD symbols are equal in a CDM group, then the boundary line between the SBFD symbols and the non-SBFD symbols divides the CDM group into two lower-level CDM groups with an equal number of symbols. The CDM groups on both sides of the boundary line can be processed using the lower-level type of the original type.

[0028] In one implementation, when the number of SBFD symbols and the number of non-SBFD symbols are not equal, for the second target symbol, the lower-level type of code division multiplexing 8-frequency domain 2-time domain 4 is frequency domain code division multiplexing 2; for the third target symbol, the lower-level type of code division multiplexing 8-frequency domain 2-time domain 4 is frequency domain code division multiplexing 2, or code division multiplexing 4-frequency domain 2-time domain 2, or a combination of frequency domain code division multiplexing 2 and code division multiplexing 4-frequency domain 2-time domain 2; when the number of SBFD symbols is greater than the number of non-SBFD symbols, the second target symbol is the non-SBFD symbol, and the third target symbol is the SBFD symbol; when the number of SBFD symbols is less than the number of non-SBFD symbols, the second target symbol is the SBFD symbol, and the third target symbol is the non-SBFD symbol.

[0029] In this embodiment, the grouping processing method is basically used to divide the symbols of the bearer CDM group according to the boundary line between SBFD symbols and non-SBFD symbols. It instructs the terminal device to internally split the CDM group into at least two parts, and then performs type downgrading processing on each of the at least two parts obtained from the internal split. If the symbols of the bearer CDM group are unequally divided by the boundary line between SBFD symbols and non-SBFD symbols, then for the two parts with unequal numbers of symbols after the division, the lower-level type of the original type can be determined based on the number of symbols in each part after the division.

[0030] In one embodiment, the processing according to a lower-level type of the original type of the at least one CDM group includes: processing the CDM group portion located in a first resource region and the CDM group portion located in a third resource region using a lower-level type of the original type of the CDM group; and processing the CDM group located in a second resource region using a lower-level type of the original type of the CDM group; wherein the first resource region is the frequency region of the non-SBFD symbols that is the same as the downlink subband of the SBFD symbols, the second resource region is the downlink subband of the SBFD symbols, and the third resource region is the frequency region of the non-SBFD symbols that is the same as the uplink subband of the SBFD symbols.

[0031] In this embodiment of the application, the CDM group is internally split according to SBFD symbols and non-SBFD symbols to obtain at least two parts, and each of the at least two parts is processed according to the lower type of the original type.

[0032] In one implementation, the information regarding the packet processing method is carried in signaling sent from the network device to the terminal device.

[0033] Network devices can pre-send information about packet processing methods to terminal devices via signaling, thereby improving the speed at which terminal devices process CDM groups.

[0034] Secondly, embodiments of this application provide a communication method, including the following steps performed by a terminal device: sending information on the packet processing mode of at least one CDM group to the terminal device; each of the at least one CDM group carries SBFD symbols and / or non-SBFD symbols; the packet processing mode is used to instruct the terminal device on how to split the internal structure of a single CDM group in the at least one CDM group, wherein each CDM group is split according to the packet processing mode to obtain at least one CDM group part, the phase continuity of different symbols in each CDM group part meets a first preset condition, and the power consistency meets a second preset condition; sending channel state information reference signals for multiple antenna ports to the terminal device; the channel state information reference signals are generated using code division multiplexing, and the channel state information reference signals include at least one CDM group.

[0035] In one embodiment, the group processing method includes: in a first case, processing the CDM group portion located in a first resource region and / or the CDM group portion located in a second resource region according to the original type of the CDM group; the first case includes: the transmit power of the SBFD symbol and the transmit power of the non-SBFD symbol satisfying a first preset condition, and the signal phase continuity of the SBFD symbol and the non-SBFD symbol satisfying a second preset condition; the first resource region is the frequency region of the non-SBFD symbol that is the same as the downlink subband of the SBFD symbol, and the second resource region is the downlink subband of the SBFD symbol.

[0036] In one embodiment, the original type of each CDM group in the at least one CDM group is frequency domain code division multiplexing 2, code division multiplexing 4-frequency domain 2-time domain 2 or code division multiplexing 8-frequency domain 2-time domain 4.

[0037] In one embodiment, the grouping processing method includes: in the first case, for the CDM group portion located in the third resource region, processing is performed according to the lower type of the original type of the CDM group; the number of symbols included in the lower type of CDM group is less than the number of symbols included in the original type of CDM group; wherein, the third resource region is the frequency region of the non-SBFD symbols that is the same as the uplink subband of the SBFD symbols.

[0038] In one embodiment, the group processing method includes: in a second case, when at least one of the CDM groups is carried only by one of SBFD symbols and non-SBFD symbols, the at least one CDM group is processed according to the original type of the CDM group; wherein the second case includes: the consistency between the transmission power of the SBFD symbol and the transmission power of the non-SBFD symbol does not meet a first preset condition, and / or the continuity between the signal phase of the SBFD symbol and the signal phase of the non-SBFD symbol does not meet a second preset condition.

[0039] In one embodiment, the grouping processing method includes: processing the CDM group portion located in the first resource region and the CDM group portion located in the third resource region according to the original type of the CDM group; processing the CDM group portion located in the second resource region using continuous or discontinuous port numbers; wherein, the first resource region is the frequency region of the non-SBFD symbols that is the same as the downlink subband of the SBFD symbols, the second resource region is the downlink subband of the SBFD symbols, and the third resource region is the frequency region of the non-SBFD symbols that is the same as the uplink subband of the SBFD symbols.

[0040] In one embodiment, the packet processing method includes: in a second case, when at least one CDM group is carried by SBFD symbols and non-SBFD symbols, the CDM group portion of the at least one CDM group is processed according to the lower-level type of the original type of the at least one CDM group; wherein the number of symbols used to carry the lower-level type of CDM group is less than the number of symbols used to carry the original type of CDM group; the second case includes: the transmission power of the SBFD symbol and the transmission power of the non-SBFD symbol are inconsistent, and / or the signal phase of the SBFD symbol and the signal phase of the non-SBFD symbol are discontinuous.

[0041] In one implementation, when the original type of the CDM group is Code Division Multiplexing 4-Frequency Domain 2-Time Domain 2, the lower type of the original type is Frequency Domain Code Division Multiplexing 2; when the original type of the CDM group is Code Division Multiplexing 8-Frequency Domain 2-Time Domain 4, the lower type of the original type is Code Division Multiplexing 4-Frequency Domain 2-Time Domain 2 or Frequency Domain Code Division Multiplexing 2.

[0042] In one implementation, when the number of SBFD symbols and the number of non-SBFD symbols are equal, the lower-level type of code division multiplexing 8-frequency domain 2-time domain 4 is code division multiplexing 4-frequency domain 2-time domain 2, and the lower-level type of code division multiplexing 4-frequency domain 2-time domain 2 is frequency domain code division multiplexing 2.

[0043] In one implementation, when the number of SBFD symbols and the number of non-SBFD symbols are not equal, for the first target symbol, the lower-level type of code division multiplexing 8-frequency domain 2-time domain 4 is frequency domain code division multiplexing 2; for the second target symbol, the lower-level type of code division multiplexing 8-frequency domain 2-time domain 4 is frequency domain code division multiplexing 2, or code division multiplexing 4-frequency domain 2-time domain 2, or a combination of frequency domain code division multiplexing 2 and code division multiplexing 4-frequency domain 2-time domain 2; when the number of SBFD symbols is greater than the number of non-SBFD symbols, the first target symbol is the non-SBFD symbol, and the second target symbol is the SBFD symbol; when the number of SBFD symbols is less than the number of non-SBFD symbols, the first target symbol is the SBFD symbol, and the second target symbol is the non-SBFD symbol.

[0044] In one embodiment, the processing according to a lower-level type of the original type of the at least one CDM group includes: processing CDM groups located in a first resource region and CDM groups located in a third resource region using a lower-level type of the original type of the CDM group; processing CDM groups located in a second resource region using a lower-level type of the original type of the CDM group; wherein, the first resource region is the frequency region of the non-SBFD symbols that is the same as the downlink subband of the SBFD symbols, the second resource region is the downlink subband of the SBFD symbols, and the third resource region is the frequency region of the non-SBFD symbols that is the same as the uplink subband of the SBFD symbols.

[0045] In one implementation, the packet processing method is carried in the signaling sent by the network device to the terminal device.

[0046] Thirdly, embodiments of this application provide a communication method applicable to a communication system, wherein the communication system includes a network device and a user equipment. In this communication method, the network device sends a CSI-RS to a terminal device, wherein the CSI-RS includes CDM groups, and the user equipment obtains information about the packet processing method; each of the at least one CDM group carries SBFD symbols and / or non-SBFD symbols; the packet processing method instructs the terminal device on how to split the internal structure of a single CDM group within the at least one CDM group, wherein the phase continuity of different symbols in each part of each CDM group after splitting according to the packet processing method is greater than a preset first threshold, and the power consistency is greater than a preset second threshold; channel state information reference signals from multiple antenna ports are received; the channel state information reference signals are generated using code division multiplexing, and the channel state information reference signals include at least one CDM group; the channel state information reference signals are processed according to the packet processing method.

[0047] Regarding the third aspect, other possible interactions between network devices and user devices can be referred to the descriptions in the first and second aspects, and will not be repeated here.

[0048] Fourthly, embodiments of this application provide a communication device that has the functions of implementing the first or second aspect described above. For example, the communication device includes modules, units, or means corresponding to the operations involved in the first or second aspect described above. The modules, units, or means can be implemented by software, or by hardware, or by hardware executing corresponding software.

[0049] In one possible design, the communication device includes a processing unit and a communication unit, wherein the communication unit can be used to transmit and receive signals to enable communication between the communication device and other devices; the processing unit can be used to perform some internal operations of the communication device. The functions performed by the processing unit and the communication unit may correspond to the operations involved in the first or second aspect described above. The processing unit includes a processing unit.

[0050] In one possible design, the communication device includes a processor that can be coupled to a memory. The memory can store necessary computer programs or instructions for implementing the functions described in the first or second aspect above. The processor can execute the computer programs or instructions stored in the memory, causing the communication device to implement the methods in any possible design or implementation of the first or second aspect above, when the computer programs or instructions are executed.

[0051] In one possible design, the communication device includes a processor and a memory. The processor includes a satellite communication processor, and the memory can store the necessary computer programs or instructions for implementing the functions described in the first or second aspect above. The processor can execute the computer programs or instructions stored in the memory, and when the computer programs or instructions are executed, cause the communication device to implement the methods in any possible design or implementation of the first or second aspect above.

[0052] In one possible design, the communication device includes a processor and an interface circuit, wherein the processor includes a satellite communication processor, the processor being configured to communicate with other devices via the interface circuit and to perform the methods in any possible design or implementation of the first or second aspect described above.

[0053] Understandably, in the fourth aspect mentioned above, the processor can be implemented in hardware or software. When implemented in hardware, the processor can be a logic circuit, integrated circuit, etc.; when implemented in software, the processor can be a general-purpose processor that reads software code stored in memory. Furthermore, there can be one or more processors, and one or more memories. The memory can be integrated with the processor, or the memory and processor can be separate. In specific implementations, the memory can be integrated with the processor on the same chip, or it can be set on different chips. This application does not limit the type of memory or the arrangement of the memory and processor.

[0054] Fifthly, embodiments of this application provide a non-terrestrial network communication system, including a transmitting end device and a receiving end device. The transmitting end device is used to implement the method applied to a network device provided in any embodiment of this application, and the receiving end device is used to implement the method applied to a user equipment provided in any embodiment of this application.

[0055] Sixthly, an embodiment of this application provides a communication device including a module for performing the methods provided in any embodiment of this application.

[0056] In a seventh aspect, embodiments of this application provide a communication device, including: one or more processors configured to perform the methods provided in any embodiment of this application, the processors including a satellite communication processor.

[0057] Eighthly, embodiments of this application provide a chip system, including: a memory for storing a computer program; a processor; and when the processor retrieves and runs the computer program from the memory, a communication device equipped with the chip system executes the method provided in any embodiment of this application.

[0058] Ninthly, embodiments of this application provide a terminal device, including: a memory for storing computer programs; a processor, including a satellite communication processor; when the processor calls and runs the computer program from the memory, the terminal device executes the method provided in any embodiment of this application.

[0059] In a tenth aspect, embodiments of this application also provide a computer program product, the computer program product including instructions that, when executed on a processor, cause the processor to perform the method provided in any embodiment of this application.

[0060] Eleventhly, embodiments of this application also provide a computer-readable storage medium storing a computer program or instructions that, when executed by a communication device, implement the method provided in any embodiment of this application.

[0061] In a twelfth aspect, embodiments of this application also provide a communication device, including: a memory for storing a computer program; a processor; and when the processor retrieves and runs the computer program from the memory, the communication device performs the method provided in any embodiment of this application.

[0062] The technical effects brought about by the second to twelfth aspects above can be found in the description of the beneficial effects of the corresponding solutions in the first aspect above, and will not be repeated here. Attached Figure Description

[0063] Figure 1 A schematic diagram of the architecture of the communication system used in the embodiments of this application;

[0064] Figure 2 This is a schematic diagram of a method flow according to an embodiment of this application;

[0065] Figure 3A This is a schematic diagram of resource configuration in an embodiment of this application;

[0066] Figure 3B This is a schematic diagram illustrating another resource configuration according to an embodiment of this application;

[0067] Figure 4 This is a schematic diagram of the CDM group included in the hybrid time slot of this application embodiment;

[0068] Figure 5 This is a schematic diagram of the first resource region, the second resource region, and the third resource region in an embodiment of this application.

[0069] Figure 6 This is a schematic diagram of CDM groups and symbols according to embodiments of this application;

[0070] Figure 7This is a schematic diagram of the CSI-RS configuration of the 24 antenna ports according to an embodiment of this application;

[0071] Figure 8 This is a schematic diagram of another 24-port CSI-RS configuration according to an embodiment of this application;

[0072] Figure 9 This is a schematic diagram illustrating the internal splitting of a CDM group in one example of an embodiment of this application;

[0073] Figure 10 This is a schematic diagram of the internal splitting of a CDM group in another example of an embodiment of this application;

[0074] Figure 11 This is a schematic diagram illustrating the internal splitting of a CDM group in another example of an embodiment of this application;

[0075] Figure 12 This is a schematic diagram of the internal splitting of the CDM group in another example of the embodiments of this application. Detailed Implementation

[0076] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings. This application will focus on various aspects, embodiments, or features of a system that may include multiple devices, components, modules, etc. It should be understood and appreciated that each system may include additional devices, components, modules, etc., and / or may not include all the devices, components, modules, etc. discussed in conjunction with the accompanying drawings. Furthermore, combinations of these solutions may also be used.

[0077] Furthermore, in the embodiments of this application, words such as "in one possible implementation," "exemplarily," "for example," "e.g.," "as," and "again" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as an "example" in this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of the term "example" is intended to present concepts in a concrete manner. In the embodiments of this application, "of," "corresponding (relevant)," and "corresponding" may sometimes be used interchangeably, and it should be noted that their intended meanings are consistent unless their distinction is emphasized.

[0078] The technical solutions in this application embodiment can be applied to various communication systems, such as Universal Mobile Telecommunications System (UMTS), Wireless Local Area Network (WLAN), Wireless Fidelity (Wi-Fi) system, 4th generation (4G) communication system, such as Long Term Evolution (LTE) system, 5G communication system, such as New Radio (NR) system, and future evolution communication systems, such as 6th generation (6G) mobile communication system, etc.

[0079] In the embodiments of this application, "sending information to...(user equipment or module)" and "sending information to...(user equipment or module)" can be understood as the destination of the information being the user equipment (terminal) or module. This can include sending information directly or indirectly to the user equipment. "Receiving information from...(user equipment or module)" and "receiving information from...(user equipment or module)" can be understood as the source of the information being the user equipment, and can include receiving information directly or indirectly from the user equipment. Information may undergo necessary processing between the source and destination, such as format changes, but the destination can understand the valid information from the source. Similar expressions in this application can be understood in a similar way, and will not be elaborated further here.

[0080] The application scenarios of the embodiments of this application will be described below first.

[0081] Figure 1 This is a schematic diagram of the architecture of the communication system 1000 used in an embodiment of this application. Figure 1 As shown, the communication system includes a radio access network (RAN) 100, wherein the RAN 100 includes at least one RAN node (e.g., Figure 1 110a and 110b, collectively referred to as 110, may also include at least one terminal (such as...). Figure 1 RAN100, denoted as RAN100, comprises RAN nodes 120a-120j, collectively referred to as RAN120. RAN100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment. Figure 1(Not shown in the image). Terminal 120 is wirelessly connected to RAN node 110. Terminals and RAN nodes can be interconnected via wired or wireless means. Communication system 1000 may also include core network 200. RAN node 110 is connected to core network 200 via wireless or wired means. The core network equipment in core network 200 and RAN node 110 in RAN 100 can be independent physical devices, or they can be the same physical device integrating the logical functions of core network equipment and RAN node. Communication system 1000 may also include Internet 300.

[0082] RAN100 can be an evolved universal terrestrial radio access (E-UTRA) system, a new radio (NR) system, or a future radio access system as defined in the 3rd generation partnership project (3GPP), or it can be a WiFi system. RAN100 can also include two or more of the above-mentioned different radio access systems. RAN100 can also be an open RAN (O-RAN).

[0083] A RAN node, also known as a radio access network device, RAN entity, or access node, is used to help terminals access a communication system wirelessly. In one application scenario, an RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, a next-generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. A RAN node can also be a macro base station (such as...) Figure 1 110a in the text), can also be a micro base station or an indoor station (such as... Figure 1 110b in the middle can also be a relay node or a donor node.

[0084] In another application scenario, multiple RAN nodes can collaborate to help terminals achieve wireless access, with different RAN nodes implementing different functions of the base station. For example, a RAN node can be a central unit (CU), a distributed unit (DU), or a radio unit (RU). Here, the CU performs the functions of the base station's Radio Resource Control (RRC) and Packet Data Convergence Protocol (PDCP), and can also perform the functions of the Service Data Adaptation Protocol (SDAP). The DU performs the functions of the base station's Radio Link Control (RANC) and Medium Access Control (MAC) layers, and can also perform some or all of the physical layer functions. For specific descriptions of these protocol layers, refer to the relevant 3GPP technical specifications. The RU can be used to implement radio frequency signal transmission and reception. The CU and DU can be two independent RAN nodes or integrated into the same RAN node, such as within a baseband unit (BBU). The RU can be included in radio frequency equipment, such as in a remote radio unit (RRU) or an active antenna unit (AAU). The CU can be further divided into two types of RAN nodes: CU-control plane and CU-user plane.

[0085] In different systems, RAN nodes may have different names. For example, in an O-RAN system, a CU can be called an open CU (O-CU), a DU can be called an open DU (O-DU), and an RU can be called an open RU (O-RU). The RAN nodes in the embodiments of this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules. For example, a RAN node can be a server loaded with the corresponding software modules. The embodiments of this application do not limit the specific technology or device form used in the RAN nodes. For ease of description, a base station is used as an example of a RAN node in the following description.

[0086] A terminal is a device with wireless transceiver capabilities, capable of sending signals to or receiving signals from a base station. Terminals can also be called terminal equipment, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments of this application do not limit the specific technology or device form used in the terminal.

[0087] Base stations and terminals can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can be deployed on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of the base stations and terminals.

[0088] The roles of base stations and terminals can be relative, for example, Figure 1 The helicopter or drone 120i can be configured as a mobile base station. For terminals 120j accessing the wireless access network 100 via 120i, terminal 120i is a base station; however, for base station 110a, 120i is a terminal, meaning that 110a and 120i communicate via a wireless air interface protocol. Of course, 110a and 120i can also communicate via a base station-to-base station interface protocol; in this case, 120i is also a base station relative to 110a. Therefore, both base stations and terminals can be collectively referred to as communication devices. Figure 1 The 110a and 110b in the text can be referred to as communication devices with base station functions. Figure 1 The 120a-120j in the text can be referred to as communication devices with terminal functions.

[0089] Communication between base stations and terminals, between base stations, and between terminals can be conducted using licensed spectrum, unlicensed spectrum, or both simultaneously. Communication can be conducted using spectrum below 6 GHz, spectrum above 6 GHz, or both simultaneously. The embodiments of this application do not limit the spectrum resources used for wireless communication.

[0090] In the embodiments of this application, the functions of the base station can be executed by modules (such as chips) within the base station, or by a control subsystem that includes base station functions. This control subsystem, including base station functions, can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal can be executed by modules (such as chips or modems) within the terminal, or by a device that includes terminal functions.

[0091] In this application, the base station sends downlink signals or downlink information to the terminal, with the downlink information carried on the downlink channel; the terminal sends uplink signals or uplink information to the base station, with the uplink information carried on the uplink channel. To communicate with the base station, the terminal needs to establish a radio connection on a cell controlled by the base station. The cell with which the terminal has established a radio connection is called the terminal's serving cell. When the terminal communicates with this serving cell, it is also susceptible to interference from signals from neighboring cells.

[0092] In the embodiments of this application, the time-domain symbol can be an orthogonal frequency division multiplexing (OFDM) symbol or a discrete Fourier transform-spread-OFDM (DFT-s-OFDM) symbol. Unless otherwise specified, the symbols in the embodiments of this application refer to time-domain symbols.

[0093] It is understood that in the embodiments of this application, PDSCH, PDCCH and PUSCH are just examples of downlink data channel, downlink control channel and uplink data channel, respectively. In different systems and different scenarios, data channel and control channel may have different names, and the embodiments of this application do not limit this.

[0094] The relevant technical concepts involved in the embodiments of this application will be explained below. It should be noted that these explanations are for the purpose of making the embodiments of this application easier to understand, and should not be regarded as a limitation on the scope of protection claimed by this application.

[0095] Code division multiplexing (CDM) is a channel multiplexing technique that utilizes the orthogonality of the code structures of various signals to achieve multiplexed communication on a single channel. In CDM communication, each user is assigned a unique address code, and these address codes do not overlap, ensuring no interference between communicating parties. By multiplying each signal by a code sequence generated by an orthogonal code generator, multiple signals can be transmitted on a single channel. The receiving end (e.g., a terminal device) then obtains the signal corresponding to the user's address code based on the address code, and performs reconstruction processing using the code sequence generated by the orthogonal code generator to restore the original signal.

[0096] In this embodiment, a CDM group refers to a signal group obtained by signal processing using code division multiplexing. In a CDM group, multiple signals can be carried by code groups containing mutually orthogonal codewords, thereby improving the utilization of spectrum resources. In this embodiment, besides using code division multiplexing for signal processing, the CDM group can also use other methods to process the signal, thereby giving the signal other characteristics.

[0097] Time division duplexing (TDD) is a duplexing method used in communication systems, primarily for separating the receive and transmit channels in mobile communication systems. In TDD mode, the communication system utilizes time-division multiplexing technology to separate the transmitted and received signals. In a TDD mobile communication system, receiving and transmitting operations occur on the same frequency channel (i.e., different time slots of the carrier), with the receive and transmit channels separated by ensuring time. Specifically, communication time is divided into alternating time slots, with only one party able to send information during each time slot, while the other party can only receive information. Therefore, TDD enables bidirectional communication on the same frequency band, improving the utilization of spectrum resources.

[0098] SBFD symbols are symbols processed using SBFD technology. SBFD is a technique for achieving full-duplex communication in wireless communication systems; essentially, SBFD combines time-division duplex (TDD) and frequency-division duplex (FDD) technologies. In SBFD technology, an SBFD symbol refers to a symbol that simultaneously carries uplink and downlink transmissions within different subbands of a single carrier bandwidth (or the bandwidth portion BWP of the carrier bandwidth).

[0099] Non-SBFD symbols, in this embodiment, can be those symbols that are not configured for SBFD operation. Compared to SBFD symbols, non-SBFD symbols may only be used for uplink or downlink transmission, or in some cases for other purposes (such as guard bands, synchronization signals, etc.). Non-SBFD symbols are used for unidirectional transmission (uplink or downlink) in TDD systems, and together with SBFD symbols, they constitute the transmission resources of the communication system. By dynamically configuring non-SBFD and SBFD symbols, the communication system can flexibly adjust the transmission direction and resource allocation according to network requirements, thereby achieving efficient communication transmission.

[0100] The Channel State Information Reference Signal (RS) is a reference signal used in the downlink (DL) direction of 5G New Radio (NR) networks. It is mainly used for channel detection and wireless channel characteristic measurement so that the network can adopt the correct modulation, code rate, beamforming and other techniques to optimize data transmission performance.

[0101] The communication method provided in this application will be described in detail below with reference to specific embodiments. In specific embodiments, the method provided in this application will be used to communicate with... Figure 1 The example shown is an optimization of the communication system in the scenario described. In other possible implementations, the communication method provided in this application embodiment can also be applied to other types of wireless communication systems. Alternatively, it can be applied to a subsystem of a communication system. Or, it can be applied to a network composed of multiple different communication systems. Figure 1 This is a simplified diagram for ease of understanding only; other devices may also be included in this communication system. Figure 2 It is not shown in the middle.

[0102] Figure 2 This is a flowchart illustrating a communication method according to an embodiment of this application. Figure 2The illustrated embodiment describes a possible implementation method for communication between a network device and a user equipment. When the network device sends signals to the user equipment, it uses time-division duplex (TDD) transmission. During this TDD transmission, SBFD symbols carry channel state information (SSI) reference signals. Simultaneously, SBFD time-domain configuration allows only a portion of the symbols in a traditional TDD time slot to be configured as SBFD symbols, while the remaining symbols remain non-SBFD symbols, forming a mixed time slot. Depending on the base station implementation, power consistency and phase continuity between SBFD and non-SBFD symbols may not be maintained. In communication implemented using SBFD technology, multiple antenna ports of the network device generate CSI-RS signals and transmit them in a single transmission. Because SBFD and non-SBFD symbols need to be interleaved, a single transmission containing CSI-RS may contain a mixture of SBFD and non-SBFD symbols, meaning the CSI-RS signal in this transmission may span between SBFD and non-SBFD symbols. Channel abrupt changes may occur during the alternation of SBFD and non-SBFD symbols, which can disrupt the orthogonality within the CDM group, thus affecting the accuracy of channel estimation. In one embodiment of this application, the communication method includes the following steps S21 to S23.

[0103] Step S21: The terminal device obtains information about the packet processing method of the CDM group sent by the network device.

[0104] Correspondingly, network devices can send packet processing information to terminal devices. Alternatively, terminal devices can actively obtain packet processing information from other devices via the network. Or, terminal devices can store packet processing information locally and obtain information on the packet processing method for CDM groups when receiving CSI-RS.

[0105] Each of the at least one CDM group carries SBFD symbols and / or non-SBFD symbols; the grouping processing method is used to instruct the terminal device to split the internal structure of each of the at least one CDM group, and each CDM group is split according to the grouping processing method to obtain at least one CDM group part, wherein the phase continuity of different symbols in each CDM group part is greater than a preset first threshold and the power consistency is greater than a preset second threshold.

[0106] In one embodiment of this application, the packet processing method information can also be carried in signaling. The signaling is used to notify the terminal device of the packet processing method for at least one CDM group. Alternatively, the signaling can be used to indicate the packet processing method for at least one CDM group within one or more transmissions after the signaling is received.

[0107] In this embodiment, the signaling can be radio resource control (RRC) signaling, downlink control information (DCI) signaling, or media access control element (MAC-CE) signaling. RRC signaling can be used to control radio resources, and the resources controlled by RRC signaling can include time-domain resources and frequency-domain resources.

[0108] In one or more transmissions following signaling, the network device may send at least one CDM group to the terminal device. Within a single transmission, the network device may send a predetermined number of time-domain symbols to the terminal device, among which CSI-RS can be carried. A single transmission may include multiple subcarriers in the frequency domain dimension. When generating CSI-RS, the network device may add coding to the signal to distinguish different channels. Accordingly, in a single transmission, the network device may send CSI-RS including at least one CDM group to the terminal device.

[0109] In another implementation, packet processing information can also be carried in a system information block (SIB) or a master information block (MIB). Correspondingly, network devices can broadcast this packet processing information to terminal devices.

[0110] In another implementation, information in the packet processing method can also be sent via business data.

[0111] During this transmission, the CSI-RS sent by the network device to the terminal device can be carried on SBFD symbols, or on non-SBFD symbols, or on both SBFD and non-SBFD symbols.

[0112] In this embodiment of the application, the grouping processing method may include information in multiple dimensions, such as: whether to group, the specific method of grouping (how to group), or the specific method of grouping (this information is included when confirming grouping), or a combination of specific processing methods for each part after grouping.

[0113] The grouping processing method is used to instruct the terminal device on how to split the internal processing of each CDM group in the at least one CDM group, and may include at least one of the following meanings.

[0114] (1) For a CSI-RI sent by a network device to a terminal device in a single transmission, which may include at least one CDM group. When a CSI-RS in a single transmission includes multiple CDM groups, the packet processing method can be used to instruct the terminal device how to internally split at least one of the CDM groups.

[0115] (2) When a CSI-RS sent by a network device to a terminal device includes multiple CDM groups, the packet processing method can be used to instruct the terminal device how to internally split multiple specified CDM groups.

[0116] (3) When a CSI-RS sent by a network device to a terminal device includes multiple CDM groups, the packet processing method can be used to instruct the terminal device how to perform unified internal splitting processing on each specified CDM group.

[0117] (4) When a CSI-RS sent by a network device to a terminal device includes multiple CDM groups, the packet processing method can be used to instruct the terminal device that at least one of the CDM groups does not need to be split.

[0118] (5) When a CSI-RS sent by a network device to a terminal device includes multiple CDM groups, the packet processing method can be used to instruct the terminal device how to split the CDM groups according to their specific order.

[0119] (6) The group processing mode can be used to instruct the terminal device to perform internal splitting processing on at least one CDM group in the CSI-RS received by the terminal device or not to perform internal splitting processing. The terminal performs splitting processing on at least one CDM group according to the preset rules when internal splitting processing is required.

[0120] (7) The packet processing mode can be used to instruct the terminal device to perform internal splitting processing on specific or unspecific CDM groups in CSI-RS received within one or more transmission times, or not to perform internal splitting processing. And if internal splitting processing is performed, the specific splitting method of internal splitting processing.

[0121] (8) The grouping processing method can be used to indicate that at least one CDM group is internally split according to the type of CDM group.

[0122] (9) The grouping processing method can be used to split the CDM group included in CSI-RS according to the boundary line between SBFD symbols and non-SBFD symbols, to obtain at least two parts. Based on the at least two parts obtained after splitting, the type to be used when processing each part is determined, and then the at least two CDM group parts (which may also be referred to as parts or portions of CDM groups in this application embodiment) are processed separately according to the corresponding type.

[0123] In (9) above, the type used when processing each CDM group may include the original type of the CDM group in CSI-RS and / or the subtype of the original type. Further, based on the at least two parts obtained after splitting, the type used when processing each part is determined, the number of symbols occupied by each part in the time domain is determined based on the at least two parts obtained after splitting, and the type used when processing each part is determined based on the number of symbols occupied by each part in the time domain.

[0124] In (9) above, the type used when processing each part is the highest level type corresponding to the number of symbols occupied by each part in the time domain after splitting. For example, when the split part occupies 1 symbol in the time domain, the type used to process this part is frequency domain code division multiplexing 2.

[0125] In the embodiments of this application, the type (i.e., the original type) of each CDM group in the at least one CDM group can be frequency domain code division multiplexing 2 (fd-CDM2), code division multiplexing 4-frequency domain 2-time domain 2 (cdm4-FD2-TD2) or code division multiplexing 8-frequency domain 2-time domain 4 (cdm8-FD2-TD4).

[0126] In this embodiment, the type of CDM group can also be referred to as the order of the CDM group. Accordingly, the type of CDM group includes the original type and the subtype of the original type. The original type can correspond to the original order of the CDM group, and the subtype of the original type can correspond to the sub-order of the original order of the CDM group.

[0127] In the embodiments of this application, some possible types can be arranged from top to bottom as follows: cdm8-FD2-TD4, cdm4-FD2-TD2, and fd-CDM2. That is to say, among cdm8-FD2-TD4, cdm4-FD2-TD2, and fd-CDM2, fd-CDM2 has no lower-level type.

[0128] Therefore, when the terminal device receives the packet processing method, it can know whether at least one CDM group needs to be internally split. After the terminal device performs internal split processing on the CDM group according to the packet processing method, each original CDM group may be transformed into at least one CDM group part.

[0129] After internal splitting, the CDM group, in at least one CDM group segment, exhibits substantially continuous phase between different symbols within each segment, and substantially consistent power between different symbols within each segment. In other words, the phase continuity between different symbols in each CDM group segment obtained after splitting meets a first preset condition. Furthermore, the power consistency between different symbols in each segment of the CDM group obtained after splitting meets a second preset condition.

[0130] In the embodiments of this application, after the CDM group is internally split, the different symbols in each CDM group part can be SBFD symbols and non-SBFD symbols, or they can be different SBFD symbols, or they can be different non-SBFD symbols.

[0131] In this embodiment, the phase continuity of different symbols can refer to the degree of continuity between the waveform phases of the signals carried by different symbols over time. The power consistency of different symbols can refer to the degree to which the transmission power of the signals carried by different symbols is equal.

[0132] The first threshold can be equal to or unequal to the second threshold.

[0133] Step S22: The terminal device receives channel state information reference signals sent by multiple antenna ports of the network device.

[0134] The channel state information reference signal is generated using code division multiplexing, and the channel state information reference signal includes at least one CDM group.

[0135] In this embodiment, multiple antenna ports can refer to the antenna ports of network devices, such as the antenna ports of a base station.

[0136] While the channel state information reference signal is generated using code division multiplexing, it can also be processed in other ways, such as orthogonal frequency division multiplexing (OFDM) and / or channel coding and modulation.

[0137] In this embodiment of the application, the CSI-RS received in step S22 can be a single-transmission CSI-RS or a CSI-RS transmitted multiple times.

[0138] When the grouping processing method in step S21 is used to instruct the terminal device to perform internal splitting processing on each of the multiple CDM groups, the CDM group received in step S22 can be at least one of the multiple CDM groups corresponding to the grouping processing method.

[0139] Step S23: The terminal device processes the channel state information reference signal according to the packet processing method.

[0140] When processing CSI-RS, the terminal device can process at least one CDM group included in CSI-RS according to the splitting method indicated in the packet processing method. At the same time, it can perform other necessary processing operations on CSI-RS by using decoding and other necessary methods.

[0141] In one embodiment, step S23 may further include: the terminal device splits the CDM group included in the CSI-RS according to the group processing method to obtain at least two split CDM group parts, and then processes the at least two split CDM group parts respectively.

[0142] Alternatively, step S23 may also include: the terminal device, according to the group processing method, does not split the CDM group included in CSI-RS, and processes the original CDM group as a whole.

[0143] In one implementation, at least one CDM group included in the CSI-RS received by the terminal device in a single transmission can be at least one of at least one CDM group indicated by the packet processing method.

[0144] For example, the packet processing method instructs the terminal device to perform internal splitting processing using a first method for CDM groups of the first type in the received CSI-RS; and to perform internal splitting processing using a second method for CDM groups of the second type in the CSI-RS. The packet processing method corresponds to at least two types of CDM groups, meaning it simultaneously instructs internal splitting processing for both types of CDM groups. If the terminal device receives CSI-RS containing only CDM groups of the first type in a given transmission, then the terminal device determines the first method to use for the CDM groups of the first type based on the packet processing method, and then processes the CDM groups in the CSI-RS accordingly using the first method. The first type and the second type can be different types, and the first method and the second method can be different methods.

[0145] In one possible implementation of this application, the CDM group corresponding to the packet processing method information obtained in step S21 may be different from the CDM group included in the CSI-RS in step S22. For example, the packet processing method information obtained in step S21 includes the packet processing method for the CDM group under different circumstances, which may include a first case and a second case. In a single transmission, the CDM group included in the CSI-RS received by the terminal device belongs to the first case. Then, the terminal device can determine the packet processing method corresponding to the first case from the packet processing method information obtained in step S21, and process the CDM group portion according to the packet processing method corresponding to the first case in step S23.

[0146] In another possible implementation, the CDM group portion corresponding to the packet processing method obtained in step S21 may differ from the CDM group corresponding to the CSI-RS signal processed according to the packet processing method in step S23. For example, the CDM groups corresponding to the packet processing method information obtained in step S21 may include CDM group A, CDM group B, and CDM group C. In a single transmission, the CDM group included in the CSI-RS received by the terminal device belongs to CDM group A. Therefore, when executing step S23, the CDM group included in the CSI-RS can be processed according to the packet processing method corresponding to CDM group A.

[0147] In another possible implementation, if the information on the packet processing method obtained in step S21 corresponds to a CDM group, then the CSI-RS processed in step S23 includes the CDM group corresponding to the packet processing method.

[0148] In another possible implementation, if the information on the grouping processing method obtained in step S21 corresponds to two or more CDM groups, then the CSI-RS processed in step S23 includes at least one of the two or more CDM groups corresponding to the grouping processing method.

[0149] In this embodiment, when the network device sends CSI-RS to the terminal device, or before sending it, it can send signaling instructions to perform internal splitting processing on at least one CDM group included in the CSI-RS. The terminal device can then perform internal splitting processing on at least one part of the at least one CDM group according to the signaling. The symbols have high phase continuity and power consistency. Therefore, when the terminal device processes at least one part of the CDM group after splitting, it will not produce inaccurate channel estimation results due to inconsistent power or phase discontinuity of the symbols carrying the signal, thus improving the accuracy of channel estimation.

[0150] Next, the information included in the grouping processing method of the embodiments of this application will be described.

[0151] If the OFDM symbols carrying a CDM group have inconsistent power or discontinuous phase, the grouping processing method can instruct the terminal equipment to internally split the CDM group according to power and / or phase, and then process each part obtained after internal splitting separately. For example, for the CDM group part carried by SBFD symbols and the CDM group part carried by non-SBFD symbols, internal splitting of the CDM group can be performed, and then processed separately.

[0152] In execution Figure 3A Before steps S21 to S23, at least one of the following items (i) to (ix) can be included in the packet processing method information of the network device or other device in advance, and then the corresponding packet processing method information can be sent to the terminal device, or the terminal device can obtain the corresponding packet processing method information from the local device.

[0153] (i) The group processing method includes: in the first case, for the CDM group portion located in the first resource area and / or the CDM group portion located in the second resource area, processing is performed according to the original type of the CDM group; the first case includes: the transmission power of the SBFD symbol is the same as the transmission power of the non-SBFD symbol, and the signal phase of the SBFD symbol is continuous with the signal phase of the non-SBFD symbol; the first resource area is the frequency area of ​​the non-SBFD symbol that is the same as the downlink subband of the SBFD symbol, and the second resource area is the downlink subband of the SBFD symbol.

[0154] In the embodiments of this application, the original type of each CDM group in the at least one CDM group is frequency domain code division multiplexing 2, code division multiplexing 4-frequency domain 2-time domain 2 or code division multiplexing 8-frequency domain 2-time domain 4.

[0155] To address the issues of reduced uplink coverage and increased transmission latency that arise in TDD systems when the uplink time slot ratio is small, SBFD technology allows the introduction of an uplink sub-band within the frequency band used for downlink by network devices. This enables network devices to simultaneously perform downlink transmission and uplink reception in time slots that include both uplink and downlink sub-bands, i.e., SBFD time slots, thus enhancing the uplink capability of the communication system.

[0156] Meanwhile, during SBFD time-domain resource configuration, it is allowed to configure some symbols within a traditional TDD time slot as SBFD symbols, while the remaining symbols remain as non-SBFD symbols, forming a hybrid time slot. Because different network devices have varying performance, power consistency and phase continuity between SBFD and non-SBFD symbols may not be maintained for some network devices. On the other hand, within a single transmission, the transmission of CSI-RS across multiple antenna ports may occupy multiple symbols, and CSI-RS resource element (RE) mapping supports CDM. Code division multiplexing methods include fd-CDM2, cdm4-FD2-TD2, and cdm8-FD2-TD4 with group sizes of 2, 4, and 8 respectively. When the CDM group size is 2, the CDM group occupies one symbol in the time domain. When the CDM group size is 4, it occupies two symbols in the time domain. When the CDM group size is 8, it occupies four symbols in the time domain. For each CDM group, the original type is the type of that CDM group.

[0157] For multi-port CSI-RS resource configuration under SBFD operation, a CSI-RS transmission may occur in a mixed time slot, and in the mixed time slot, the CSI-RS CDM group may span SBFD and non-SBFD symbols.

[0158] Figure 3A This demonstrates the resource configuration (CSI-RSresource) in the time domain for the SBFD symbol region and the non-SBFD symbol region during multiple CSI-RS transmissions within the active bandwidth part (active BWP) in the frequency domain.

[0159] Figure 3A In the resource configuration diagram shown, each symbol is used for downlink (DL) transmission. SBFD symbols and non-SBFD symbols are separated by dashed line 301. Figure 3A The left side of the text corresponds to the area without the SBFD symbol, and the dashed line 301 is in... Figure 3AThe area to the right of the diagram corresponds to the SBFD symbol region. The area enclosed by dashed box 302 represents the uplink subcarries (UL SB) transmitted at the uplink frequency of the SBFD symbol region, which are not part of the SBFD symbol region. The area outside dashed box 302 represents the downlink subcarries (DL SB) transmitted at the downlink frequency.

[0160] Reference Figure 3A As shown, if only SBFD symbols exist in a single CSI-RS transmission, then the time slot can be called an SBFD time slot. If only non-SBFD symbols exist in a single CSI-RS transmission, then the time slot can be called a non-SBFD time slot. If both SBFD and non-SBFD symbols exist in a single CSI-RS transmission, then the time slot is a mixed slot.

[0161] In such Figure 3B Within the active BWP shown, the resource units in the time domain corresponding to the SBFD symbol include uplink subcarries (UL SB) transmitted at the uplink frequency and downlink subcarries (DL SB) transmitted at the downlink frequency. Since CSI-RS is a downlink signal, the CSI-RS subcarries corresponding to the uplink frequency are empty symbols in the time domain of the SBFD symbol, carrying no data.

[0162] Figure 3A This demonstrates an alternative resource configuration within the frequency-domain activated portion of the bandwidth, in the time domain, across multiple resource units containing CSI-RS transmissions, including the regions of SBFD symbols and non-SBFD symbols, among others. Figure 3B This is another type of hybrid time slot, different from the hybrid time slot shown. Figure 3A In the example shown, the order in which the SBFD symbol and the non-SBFD symbol appear is the same as... Figure 4 The order is reversed.

[0163] Figure 3A Showing Figure 4 Within a mixed time slot and 12 frequency domain resource units (REs), CSI-RS includes 3 CDM groups 401. An RE represents one subcarrier symbol on an orthogonal frequency division multiplexing (OFDM) symbol. Symbols 0 to 5 correspond to non-SBFD symbols, and symbols 6 to 13 are indicated by bold boxes as CDM groups. CDM groups are... Figure 4 It is indicated by a thick box.

[0164] according to Figure 4 It can be seen that within each CDM group, channel abrupt changes between SBFD symbols and non-SBFD symbols will disrupt the orthogonality within the CDM group, thus affecting the accuracy of channel estimation. Figure 5 The SBFD symbol shown includes CDMs emitted from 24 antenna ports, with each CDM group being of type cdm8-FD2-TD4. In other possible implementations, CDMs can also be generated from other numbers of antenna ports, such as 1, 2, 4, 8, 12, 16, or 32.

[0165] For CDM groups spanning both SBFD and non-SBFD symbols, the CDM group can be divided into regions based on SBFD symbols, non-SBFD symbols, and subband frequencies, resulting in the aforementioned first and second resource regions of the CDM group. Simultaneously, a third resource region corresponding to the uplink subband frequency is also obtained. For example... Figure 6 As shown, the second resource region is recorded as region Ψ, the first resource region as region Φ, and the third resource region as region Φ.

[0166] (ii) The grouping processing method includes: in the first case, for the CDM group located in the third resource area, processing is performed according to the lower type of the original type of the CDM group; the number of symbols included in the lower type of CDM group is less than the number of symbols included in the original type of CDM group; wherein, the third resource area is the frequency area where the non-SBFD symbols and the uplink subbands in the SBFD symbols are the same.

[0167] In this embodiment, when the network device determines, based on the implementation conditions of SBFD operation, that SBFD and non-SBFD symbols can roughly maintain power consistency and phase continuity, it performs joint processing of CSI-RS for region Φ and region Ψ, while for region Ψ... The CSI-RS can be processed according to the subtype of the original type of the CDM group.

[0168] (iii) The grouping processing method includes: in the second case, the CDM group parts of the first resource area and the second resource area are processed independently, and the grouping processing method of the third resource area is the same as that of the first resource area.

[0169] In this application embodiment, the second situation includes: the transmission power of the SBFD symbol and the transmission power of the non-SBFD symbol are inconsistent, and / or the signal phase of the SBFD symbol and the signal phase of the non-SBFD symbol are discontinuous.

[0170] (iv) The grouping processing method includes: in the second case, when at least one of the CDM groups is carried only by one of the SBFD symbols and non-SBFD symbols, the CDM group is processed according to the original type of the CDM group.

[0171] If a CDM group carries only SBFD symbols, or only non-SBFD symbols, it means that this CDM group does not span between SBFD and non-SBFD symbols. Within a single transmission period of CSI-RS, there are no power changes or phase discontinuities in the symbols carrying the CDM group. However, since CSI-RS is downlink information, the uplink subband portion carrying SBFD symbols is empty. Therefore, frequency regions with the same frequency position as SBFD symbols and the third resource area can only be used for uplink and cannot be mapped to CSI-RS. For the third resource area, a lower-level type of the original CDM group type needs to be used for processing.

[0172] like Figure 7 The CSI-RS shown in figure a includes six CDM groups 601, three of which are carried by SBFD symbols, and the other three CDM groups 602 are carried by non-SBFD symbols. Slots 0 to 5 correspond to non-SBFD symbols, and slots 6 to 13 correspond to SBFD symbols. The bold boxes indicate CDM groups.

[0173] (v) The group processing method includes: in the second case, when at least one of the CDM groups is carried only by one of the SBFD symbols and non-SBFD symbols, the CDM group portion located in the first resource area and the CDM group portion located in the third resource area are processed according to the original type of the CDM group; the CDM group portion located in the third resource area is processed using continuous or non-contiguous port numbers.

[0174] The first resource region is the same frequency region as the downlink subband of the SBFD symbol in the non-SBFD symbol, the second resource region is the downlink subband of the SBFD symbol, and the third resource region is the same frequency region as the uplink subband of the SBFD symbol in the non-SBFD symbol.

[0175] For example, such as Figure 8 As shown, regions Φ and Ψ correspond to 12 ports each in a 24-antenna-port CSI-RS configuration. For regions Φ and Ψ... The corresponding ports are numbered sequentially from 3000 to 3011. For the antenna ports corresponding to region Ψ, they can be renumbered starting from the initial port number 3000. In other words, the antenna ports corresponding to region Ψ can still be numbered sequentially from 3000 to 3011. Alternatively, the antenna ports corresponding to region Ψ can be combined with those of region Φ and region Φ. The antenna ports are numbered consecutively, meaning that for the antenna ports corresponding to region Ψ, numbers 3012-3023 can be used sequentially as port numbers. Time slots 0 to 5 correspond to non-SBFD symbols, and time slots 6 to 13 correspond to SBFD symbols. The bolded boxes represent CDM groups.

[0176] In another example, such as Figure 4 As shown, regions Φ and Ψ involve 6 and 18 ports respectively in another 24-port CSI-RS configuration. Regarding regions Φ and Ψ... The corresponding ports are numbered sequentially from 3000 to 3005. The antenna ports corresponding to region Ψ can be renumbered; that is, they can still be numbered starting from 3000, with numbers 3000-3017 used sequentially. Alternatively, the antenna ports corresponding to region Ψ can be combined with those of region Φ and region... The antenna ports are numbered consecutively, meaning that for the antenna ports corresponding to region Ψ, numbers 3006-3023 can be used sequentially as port numbers. Time slots 0 to 5 correspond to non-SBFD symbols, while time slots 6 to 13 correspond to SBFD symbols. The bolded boxes represent CDM groups.

[0177] In this embodiment of the application, after processing the CDM group using continuous or non-continuous port numbers, the UE side needs to classify the CDM portion of the ports involved in region Φ and region Ψ into the CSI-RS processing flow of SBFD and non-SBFD symbols respectively to form separate CSI-RS reports.

[0178] (vi) The grouping processing method includes: in the second case, when at least one of the CDM groups is carried by SBFD symbols and non-SBFD symbols, the at least one CDM group is processed according to the lower type of the original type of the at least one CDM group; wherein the number of symbols used to carry the lower type of CDM group is less than the number of symbols used to carry the original type of CDM group.

[0179] Figure 9The CSI-RS shown includes three CDM groups. Each of the three CDM groups carries both SBFD and non-SBFD symbols, and each CDM group spans both SBFD and non-SBFD symbols. In other words, within a time slot, there is a boundary between SBFD and non-SBFD symbols, and the CDM group crosses this boundary.

[0180] (vii) The grouping processing method includes: in the second case, when the original type of the CDM group is code division multiplexing 4-frequency domain 2-time domain 2, the lower type of the original type is frequency domain code division multiplexing 2; when the original type of the CDM group is code division multiplexing 8-frequency domain 2-time domain 4, the lower type of the original type is code division multiplexing 4-frequency domain 2-time domain 2 or frequency domain code division multiplexing 2.

[0181] (viii) The grouping processing method includes: in the second case, when the number of SBFD symbols and the number of non-SBFD symbols are equal, the lower type of code division multiplexing 8-frequency domain 2-time domain 4 is code division multiplexing 4-frequency domain 2-time domain 2, and the lower type of code division multiplexing 4-frequency domain 2-time domain 2 is frequency domain code division multiplexing 2.

[0182] The number of SBFD symbols is equal to the number of non-SBFD symbols, that is, the CDM group separated by the boundary line between SBFD symbols and non-SBFD symbols is located in a region Φ that is partially symmetrical to region Ψ.

[0183] If the CDM group type is fd-CDM2, then CDM occupies one symbol in the time domain and two symbols in the frequency domain. If the CDM group type is Code Division Multiplexing 8-Frequency Domain 2-Time Domain 4, then after the CDM group is symmetrically divided by the boundary line between SBFD and non-SBFD symbols, the CDM groups on both sides of the boundary line each occupy two symbols in the time domain. If the CDM group type is Code Division Multiplexing 4-Frequency Domain 2-Time Domain 2, then after the CDM group is symmetrically divided by the boundary line between SBFD and non-SBFD symbols, the CDM groups on both sides of the boundary line each occupy one symbol in the time domain.

[0184] Figure 9 Taking the original CDM type as Code Division Multiplexing 8-Frequency Domain 2-Time Domain 4 as an example, the terminal device performs rollback processing on the fragmented 8 ports cdm8-FD2-TD4 according to the packet processing method. That is, the terminal device processes the CDM group according to the content of the packet processing method, using any of the lower-level types of the original type (i.e., Code Division Multiplexing 4-Frequency Domain 2-Time Domain 2 and fd-CDM2). The 8 ports under the cdm8-FD2-TD4 configuration are {p x|x=0,1,2,3,4,5,6,7}, the sequence mapping for each port is as follows: p0: (1,1,1,1,1,1,1,1); p1: (-1,-1,-1,-1,1,1,1,1); p2:

[0185] (1,-1,1,-1,1,-1,1,-1); p3: (-1,1,-1,1,-1,1,-1,1); p4: (1,1,-1,-1,1,1,-1,-1); p5:

[0186] (-1,-1,1,1,-1,-1,1,1); p6: (1,-1,-1,1,1,-1,-1,1); p7: (-1,1,1,-1,-1,1,1,-1). The terminal device uses the sequence mapping corresponding to each port to obtain the corresponding signal to be received.

[0187] In the embodiments of this application, the mapping sequence and the corresponding order of the resource cells in each figure are from left to right and from top to bottom, respectively.

[0188] exist Figure 9 In the example shown, a 4-port cdm4-FD2-TD2 is used on the REs located in regions Φ and Ψ respectively after the split. From Figure 10 to Figure 12 It can be seen that, for the CDM group, internal splitting is performed according to whether it is carried by SBFD symbols or non-SBFD symbols. For the CDM group obtained after splitting, the antenna ports involved in regions Φ and Ψ are both {p x |x=0,1,2,3}. After placing the time-frequency resources occupied by the same antenna ports onto a single time-frequency resource grid (RE grid), the sequence mapping that each port needs to perform on the time-frequency resource grid is obtained. The required sequence mapping is the same as that of port {p} under the original cdm8-FD2-TD4 configuration. x The sequence mappings for |x=0,1,2,3} are completely identical. Therefore, the proposed processing method can be implemented as follows: On the one hand, the network device can directly close the last 4 ports (i.e., {p}) under the original cdm8-FD2-TD4 configuration. x |x=4,5,6,7}), the remaining ports are used as usual. On the other hand, the UE processes the CSI-RS of region Φ and region Ψ according to the cdm4-FD2-TD2 configuration. The sequence mappings corresponding to each antenna port of region Φ and region Ψ are the same, in the following order: p0: (1,1,1,1); p1: (-1,-1,1,1); p2: (1,-1,1,-1); p3: (-1,1,1,-1).

[0189] If the original type of the CDM group is Code Division Multiplexing 4-Frequency Domain 2-Time Domain 2, the CDM group is internally split, and the split CDM parts are processed according to fd-CDM2 respectively.

[0190] (ix) When the number of SBFD symbols and the number of non-SBFD symbols are not equal, for the second target symbol, the lower-level type of code division multiplexing 8-frequency domain 2-time domain 4 is frequency domain code division multiplexing 2; for the third target symbol, the lower-level type of code division multiplexing 8-frequency domain 2-time domain 4 is frequency domain code division multiplexing 2, or code division multiplexing 4-frequency domain 2-time domain 2, or a combination of frequency domain code division multiplexing 2 and code division multiplexing 4-frequency domain 2-time domain 2; when the number of SBFD symbols is greater than the number of non-SBFD symbols, the second target symbol is the non-SBFD symbol, and the third symbol is the SBFD symbol; when the number of SBFD symbols is less than the number of non-SBFD symbols, the second target symbol is the SBFD symbol, and the third target symbol is the non-SBFD symbol.

[0191] The number of SBFD symbols used to carry the CDM group is not equal to the number of non-SBFD symbols. That is, the CDM group, which is divided by SBFD symbols and non-SBFD symbols, is located in a portion of region Φ and region Ψ that is asymmetrical. The type of the CDM group is cdm8-FD2-TD4.

[0192] Furthermore, when the CDM group separated by SBFD and non-SBFD symbols is partially asymmetrical in regions Φ and Ψ, there are two scenarios: one where the proportion of cdm8-FD2-TD4 located in region Φ is larger than the other where it is larger in region Ψ. Since the processing method for both is the same, refer to the following... Figure 10 Using the region Ψ as a representative example, this paper introduces at least three possible grouping methods under asymmetric conditions.

[0193] The first grouping method is as follows: Figure 10 As shown, after the CDM group is split, a 2-port fd-CDM2 is used on the RE corresponding to region Φ, and simultaneously, after the CDM group is split, a 2-port fd-CDM2 is used on the RE corresponding to the leftmost symbol of region Ψ, with the two symbols on the right side of the time domain empty. From Figure 10 It can be seen that when processing according to the lower type of the original CDM group—fd-CDM2, the antenna ports involved in regions Φ and Ψ are both {p x |x=0,1}. After placing the time-frequency resources occupied by the same antenna ports onto a single time-frequency resource grid, the sequence mapping that each port needs to perform on the time-frequency resource grid is obtained. Figure 10 In the example shown, regions Φ and Ψ are mapped to the required sequence of the terminal device and port {p} under the original cdm8-FD2-TD4 configuration. x The sequence mappings of |x=0,1} on the left-hand side are exactly the same for both symbols. Therefore, inFigure 10 In the example shown, the packet processing method is implemented on both the network device and the terminal device side as follows: On the one hand, the network device closes the last 6 ports (i.e., {p) under the original cdm8-FD2-TD4 configuration. x |x=2,…,7}), and the remaining ports are only RE mapped on the two left symbols; on the other hand, the UE processes the CSI-RS of the leftmost symbols of region Φ and region Ψ according to the fd-CDM2 configuration, and the two rightmost symbols of region Ψ in the time domain are configured as null.

[0194] exist Figure 11 In the example shown, the sequence mappings of the antenna ports corresponding to region Φ and region Ψ are as follows: p0: (1,1); p1: (-1,1).

[0195] The second grouping method is as follows: Figure 11 As shown: After the CDM group is split, a 2-port fd-CDM2 is used on the RE corresponding to region Φ, and a 4-port cdm4-FD2-TD2 is used on the RE corresponding to region Ψ where the leftmost symbol is empty and the two rightmost symbols are empty. Figure 12 In the example shown, under the proposed processing method, the antenna ports involved in region Φ and region Ψ are {p x |x=0,1} and {p x |x=0,1,2,3}. After placing the time-frequency resources occupied by the same antenna ports onto a single time-frequency resource grid, the sequence mapping that each port needs to perform on the time-frequency resource grid is obtained. Figure 11 In the example shown, the sequence mapping required by the terminal device to process the CDM group is the same as that of port {p} under the original cdm8-FD2-TD4 configuration. x The sequence mappings of |x=0,1,2,3} on the corresponding symbols are exactly the same.

[0196] Therefore, in Figure 11 In the example shown, the packet processing method is implemented on both the network device and the terminal device side as follows: On the one hand, the network device closes the last 4 ports under the original cdm8-FD2-TD4 configuration, and port {p x |x=0,1} only performs RE mapping on the leftmost and rightmost symbols, while port {p x |x=2,3} only performs RE mapping on the two symbols on the right; on the other hand, the UE processes the CSI-RS of the two symbols on the right of region Φ and region Ψ according to the configurations of fd-CDM2 and cdm4-FD2-TD2 respectively.

[0197] exist Figure 12In the example shown, the sequence mappings for the two antenna ports of region Φ are: p0: (1,1); p1: (-1,1). The mapping sequences for the four antenna ports of region Ψ are: p0: (1,1,1,1); p1: (-1,-1,1,1); p2: (1,-1,1,-1); p3: (-1,1,1,-1).

[0198] The third grouping method is as follows: Figure 12 As shown: After the CDM group is split, a 2-port fd-CDM2 is used on the RE corresponding to region Φ, and a 2-port fd-CDM2 is used on the RE corresponding to the leftmost symbol of region Ψ after the split, while a 4-port cdm4-FD2-TD2 is used on the REs corresponding to the two rightmost symbols. Figure 12 In the example shown, the implementation methods of packet processing on the network device side and the terminal device side include the following: the antenna ports involved in region Φ and region Ψ are {p x |x=0,1} and {p x |x=0,…,5}. Let p x Once the time-frequency resources occupied by x∈{0,…,5} are placed on a time-frequency resource grid, the orthogonal sequence mapping to be performed on the time-frequency resource grid is obtained, denoted as . Remember p x Configure the sequence mapping on the corresponding symbols of the original type—cdm8-FD2-TD4—as Λx, x∈{0,…,5}.

[0199]

[0200] Among them {Π x |x=2,3,4,5} is the orthogonal code set under the cdm4-FD2-TD2 configuration. Although Π x ≠Λ x ,x∈

[0201] {2,3,4,5}, but it can be verified that {Λ x |x=2,3,4,5} is also an orthogonal code set, and therefore can also be used for cdm4-FD2-TD2. This means that the proposed processing method has two configuration options (alternative, Alt). Figure 12 In the example shown, one implementation of packet processing on the network device side and the terminal device side includes: the network device enables the first 6 ports, while {p x The two symbols on the left side of |x=0,1} are related to {p x The sequence mapping Π is configured on the two symbols to the right of |x=2,3,4,5}. x,x∈{0,…,5}; The UE processes the CSI-RS of region Φ according to the configuration of fd-CDM2, and processes the CSI-RS of the leftmost and rightmost symbols of region Ψ according to the configurations of fd-CDM2 and cdm4-FD2-TD2 respectively. In Figure 11 In the example shown, another implementation of the packet processing method on the network device side and the terminal device side includes: the network closes the last two ports under the original cdm8-FD2-TD4 configuration, and port {p x |x=0,1} and {p x |x=2,3,4,5} performs RE mapping only on the two left symbols and the two right symbols respectively; the UE processes the CSI-RS of region Φ according to the configuration of fd-CDM2, and respectively according to the configuration of fd-CDM2 and based on {Λ x The CSI-RS of the leftmost and rightmost symbols of the CDM4-FD2-TD2 configuration processing area Ψ for |x=2,3,4,5}.

[0202] exist Figure 2 to Figure 12 In the example shown, the sequence mappings for the two antenna ports of region Φ are: p0: (1,1); p1: (-1,1). The mapping sequences for the six antenna ports of region Ψ are: p0: (1,1); p1: (-1,1); p2: (1,1,1,1); p3: (-1,-1,1,1); p4: (1,-1,1,-1); p5: (-1,1,1,-1). Alternatively, the mapping sequences for the four antenna ports of region Ψ are: p0: (1,1); p1: (-1,1); p2: (1,-1,1,-1); p3: (-1,1,1,-1); p4: (-1,-1,-1,-1); p5: (1,1,-1,-1).

[0203] Regarding (i) to (ix) above, in the embodiments of this application, the network device can determine whether the CDM group crosses SBFD symbols and non-SBFD symbols in the future period, determine whether there is a first situation or a second situation in the CSI-RS sent in the future set period, and if there is, determine the packet processing method information according to the judgment result of the first situation or the second situation, add the packet processing method information to the signaling, and then send the signaling to the terminal device.

[0204] Alternatively, for the above (i) to (ix), the network device can send all the information on the different packet processing methods in the first and second cases to the terminal device, and the terminal device can choose to implement any one of the above (i) to (ix) according to the situation to which the received CDM group belongs.

[0205] In one embodiment of this application, the network device can also control the transmission of CDM groups based on its own hardware and software conditions to avoid transmitting CDM groups in mixed time slots. Alternatively, the packet processing method information may include: in a third case, abandoning the processing of CDM groups, wherein the third case is: the symbols used to carry CSI-RS within the set time slot include SBFD symbols and non-SBFD symbols. Alternatively, the packet processing method information may also include: in a fourth case, abandoning the processing of CDM groups, wherein the fourth case is: within the set time slot, the symbols used to carry CDM groups include SBFD symbols and non-SBFD symbols.

[0206] If the network device does not impose additional constraints on the CSI-RS configuration for mixed time slots, when a CDM group appears in a mixed time slot, the terminal device will perform special processing on the CSI-RS within the involved time slots. The network device can send packet processing method information to the terminal device via RRC signaling or other means. The packet processing method information sent by the network device to the terminal device may include the different methods adopted by the terminal device under different circumstances.

[0207] This application also provides a communication method applied to a network device, comprising: sending packet processing mode information to a terminal device; each of the at least one CDM group carrying SBFD symbols and / or non-SBFD symbols; the packet processing mode being used to instruct the terminal device on a method for splitting the internal structure of each CDM group according to the packet processing mode, wherein the phase continuity of different symbols in each part of each CDM group after being split according to the packet processing mode is greater than a preset first threshold, and the power consistency is greater than a preset second threshold; sending channel state information reference signals for multiple antenna ports to the terminal device; the channel state information reference signals being generated using code division multiplexing, and the channel state information reference signals including at least one CDM group.

[0208] Corresponding to the method provided in the embodiments of this application, the embodiments of this application also provide a communication device, including: a transceiver module and a processing module. The transceiver module is configured to: obtain information on a packet processing method; each of the at least one CDM group carries SBFD symbols and / or non-SBFD symbols; the packet processing method is used to instruct the terminal device to perform internal splitting processing on a single CDM group within the at least one CDM group, wherein the phase continuity of different symbols in each part of each CDM group after splitting according to the packet processing method satisfies a first preset condition, and the power consistency satisfies a second preset condition; receive channel state information reference signals from multiple antenna ports; the channel state information reference signals are generated using code division multiplexing, and the channel state information reference signals include at least one CDM group. The processing module is configured to process the channel state information reference signals according to the packet processing method.

[0209] The transceiver module is also used to: receive signaling sent by the network device to the terminal device, wherein the information of the packet processing method is carried in the signaling sent by the network device to the terminal device.

[0210] The communication device provided in this application receives information on the packet processing method as described in the foregoing embodiments.

[0211] Meanwhile, the communication device provided in this application embodiment is also used to implement Figure 2 to Figure 12 The methods and their corresponding implementations are described in the text.

[0212] In another embodiment, a communication method is provided, which is applied to a communication system including a satellite and a terminal. The communication method may include, for example: Figure 2 The embodiments and corresponding examples are shown.

[0213] It is understood that, in order to implement the functions in the above embodiments, the base station and user equipment include hardware structures and / or software modules corresponding to perform each function. Those skilled in the art should readily recognize that, based on the units and method steps described in conjunction with the embodiments disclosed in this application, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0214] The communication device provided in this application can be used to implement the functions of the network device or terminal device in the methods provided in the above-described embodiments of this application, and therefore can also achieve the beneficial effects of the above-described method embodiments. In the embodiments of this application, the communication device can be the final terminal device.

[0215] In one implementation, when the communication device is used to achieveFigure 2 In the embodiments of the method shown, the user equipment functions as follows: It obtains information about a packet processing mode; each of the at least one CDM group carries SBFD symbols and / or non-SBFD symbols; the packet processing mode is used to instruct the terminal equipment on how to split the internal structure of a single CDM group within the at least one CDM group, wherein the phase continuity of different symbols in each part of each CDM group after splitting according to the packet processing mode is greater than a preset first threshold, and the power consistency is greater than a preset second threshold; it receives channel state information reference signals from multiple antenna ports; the channel state information reference signals are generated using code division multiplexing, and the channel state information reference signals include at least one CDM group; and it processes the channel state information reference signals according to the packet processing mode.

[0216] The transceiver unit is also used to: receive signaling sent by the network device to the terminal device, wherein the information of the packet processing method is carried in the signaling sent by the network device to the terminal device.

[0217] In one embodiment, the packet processing method includes: in a first case, processing the code division multiplexing group portion located in the first resource area and / or the code division multiplexing group portion located in the second resource area according to the original type of the code division multiplexing group;

[0218] The first situation includes: the transmission power of the sub-band full-duplex symbol and the transmission power of the non-sub-band full-duplex symbol are consistent with a first preset condition, and the signal phase continuity of the sub-band full-duplex symbol and the non-sub-band full-duplex symbol is consistent with a second preset condition.

[0219] The first resource region is the frequency region in the non-sub-band full-duplex symbol that is the same as the downlink sub-band of the sub-band full-duplex symbol, and the second resource region is the downlink sub-band of the sub-band full-duplex symbol.

[0220] In one embodiment, the grouping processing method includes: in the first case, for the code division multiplexing group portion located in the third resource region, processing is performed according to the lower type of the original type of the code division multiplexing group; the number of symbols included in the lower type of code division multiplexing group is less than the number of symbols included in the original type of code division multiplexing group; wherein, the third resource region is the frequency region of the non-subband full-duplex symbols that is the same as the uplink subband of the subband full-duplex symbols.

[0221] In one embodiment, the grouping processing method includes: in a second case, when at least one of the code division multiplexing groups is carried only by one of sub-band full-duplex symbols and non-sub-band full-duplex symbols, the at least one code division multiplexing group is processed according to the original type of the code division multiplexing group; wherein, the second case includes: the transmit power of the sub-band full-duplex symbol and the transmit power of the non-sub-band full-duplex symbol do not meet a first preset condition, and / or the signal phase continuity of the sub-band full-duplex symbol and the signal phase continuity of the non-sub-band full-duplex symbol do not meet a second preset condition.

[0222] In one embodiment, the packet processing method includes: processing the code division multiplexing group portion located in the first resource region and the code division multiplexing group portion located in the third resource region according to the original type of the code division multiplexing group; and processing the code division multiplexing group portion located in the second resource region using continuous or discontinuous port numbers; wherein, the first resource region is the frequency region of the non-sub-band full-duplex symbol that is the same as the downlink sub-band of the sub-band full-duplex symbol, the second resource region is the downlink sub-band of the sub-band full-duplex symbol, and the third resource region is the frequency region of the non-sub-band full-duplex symbol that is the same as the uplink sub-band of the sub-band full-duplex symbol.

[0223] In one embodiment, the packet processing method includes: in a second case, when at least one code division multiplexing group carries sub-band full-duplex symbols and non-sub-band full-duplex symbols, processing is performed on the code division multiplexing group portion of the at least one code division multiplexing group according to the lower-level type of the original type of the at least one code division multiplexing group; wherein the number of symbols used to carry the lower-level type of code division multiplexing group is less than the number of symbols used to carry the original type of code division multiplexing group; the second case includes: the transmission power of the sub-band full-duplex symbol and the transmission power of the non-sub-band full-duplex symbol are inconsistent, and / or the signal phase of the sub-band full-duplex symbol and the signal phase of the non-sub-band full-duplex symbol are discontinuous.

[0224] In one implementation, when the original type of the code division multiplexing group is code division multiplexing 4-frequency domain 2-time domain 2, the lower type of the original type is frequency domain code division multiplexing 2; when the original type of the code division multiplexing group is code division multiplexing 8-frequency domain 2-time domain 4, the lower type of the original type is code division multiplexing 4-frequency domain 2-time domain 2 or frequency domain code division multiplexing 2.

[0225] In one implementation, when the number of sub-band full-duplex symbols is equal to the number of non-sub-band full-duplex symbols, the lower-level type of code division multiplexing 8-frequency domain 2-time domain 4 is code division multiplexing 4-frequency domain 2-time domain 2, and the lower-level type of code division multiplexing 4-frequency domain 2-time domain 2 is frequency domain code division multiplexing 2; when the number of sub-band full-duplex symbols is not equal to the number of non-sub-band full-duplex symbols, for the first target symbol, the lower-level type of code division multiplexing 8-frequency domain 2-time domain 4 is frequency domain code division multiplexing 2; for the second target symbol, the lower-level type of code division multiplexing 8-frequency domain 2-time domain 4 is frequency domain code division multiplexing 2. The lower-level type is frequency domain code division multiplexing 2, or code division multiplexing 4-frequency domain 2-time domain 2, or a combination of frequency domain code division multiplexing 2 and code division multiplexing 4-frequency domain 2-time domain 2; when the number of sub-band full-duplex symbols is greater than the number of non-sub-band full-duplex symbols, the first target symbol is the non-sub-band full-duplex symbol, and the second target symbol is the sub-band full-duplex symbol; when the number of sub-band full-duplex symbols is less than the number of non-sub-band full-duplex symbols, the first target symbol is the sub-band full-duplex symbol, and the second target symbol is the non-sub-band full-duplex symbol.

[0226] In one embodiment, the processing according to a lower-level type of the original type of the at least one code division multiplexing group includes: processing the code division multiplexing group portion located in a first resource region and the code division multiplexing group portion located in a third resource region using a lower-level type of the original type of the code division multiplexing group; and processing the code division multiplexing group located in a second resource region using a lower-level type of the original type of the code division multiplexing group; wherein, the first resource region is the frequency region of the non-subband full-duplex symbol that is the same as the downlink subband of the subband full-duplex symbol, the second resource region is the downlink subband of the subband full-duplex symbol, and the third resource region is the frequency region of the non-subband full-duplex symbol that is the same as the uplink subband of the subband full-duplex symbol.

[0227] In one implementation, the original type of the code division multiplexing group is code division multiplexing 8-frequency domain 2-time domain 4, code division multiplexing 4-frequency domain 2-time domain 2, or frequency domain code division multiplexing 2.

[0228] In one implementation, the information regarding the packet processing method is carried in signaling sent from the network device to the terminal device.

[0229] Group processing methods can be as follows Figure 2 And related embodiments.

[0230] For a more detailed description of the aforementioned processing unit and transceiver unit, please refer to [link / reference]. Figure 2 The method embodiments shown and other related embodiments are described.

[0231] In one embodiment, the communication device includes a processor and interface circuitry. The processor and interface circuitry are coupled to each other. It is understood that the interface circuitry can be a transceiver or an input / output interface. Optionally, the communication device may further include a memory for storing instructions executed by the processor, or storing input data required for the processor to execute instructions, or storing data generated after the processor executes instructions.

[0232] When the communication device is used to achieve ​ In the method shown, the processor is used to implement the functions of the above-mentioned processing unit, and the interface circuit is used to implement the functions of the above-mentioned transceiver unit.

[0233] It is understood that the processor in the embodiments of this application may be a Central Processing Unit (CPU), or 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. A general-purpose processor may be a microprocessor or any conventional processor.

[0234] The method steps in the embodiments of this application can be implemented in hardware or in software instructions executable by a processor. The software instructions can consist of corresponding software modules, which can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disks, portable hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. The storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. Alternatively, the ASIC can reside in a base station or user equipment. The processor and storage medium can also exist as discrete components in the base station or user equipment.

[0235] In addition, this application also provides a communication system in which the methods provided in any embodiment of this application can be implemented.

[0236] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are performed entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video optical disc; or it can 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 types of storage media.

[0237] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0238] In this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. In the textual description of this application, the character " / " generally indicates an "or" relationship between the preceding and following related objects; in the formulas of this application, the character " / " indicates a "division" relationship between the preceding and following related objects. "Including at least one of A, B, and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B, and C.

[0239] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The order of the process numbers described above does not imply the order of execution; the execution order of each process should be determined by its function and internal logic.

Claims

1. A communication method, characterized in that, include: Obtain information on the packet processing method of at least one code division multiplexing group; Each code division multiplexing group in the at least one code division multiplexing group carries subband full-duplex symbols and / or non-subband full-duplex symbols; the grouping processing method is used to instruct the terminal device to perform splitting processing on the internal structure of each code division multiplexing group in the at least one code division multiplexing group, and each code division multiplexing group is split according to the grouping processing method to obtain at least one code division multiplexing group part, wherein the phase continuity of different symbols in each code division multiplexing group part satisfies a first preset condition, and the power consistency satisfies a second preset condition; The channel state information reference signal is received from multiple antenna ports; the channel state information reference signal is generated using code division multiplexing and includes at least one code division multiplexing group. The channel state information reference signal is processed according to the grouping processing method.

2. The method according to claim 1, characterized in that, The grouping processing method includes: in the first case, processing the code division multiplexing group portion located in the first resource area and / or the code division multiplexing group portion located in the second resource area according to the original type of the code division multiplexing group; The first situation includes: the transmission power of the sub-band full-duplex symbol and the transmission power of the non-sub-band full-duplex symbol are consistent with a first preset condition, and the signal phase continuity of the sub-band full-duplex symbol and the non-sub-band full-duplex symbol is consistent with a second preset condition. The first resource region is the frequency region in the non-sub-band full-duplex symbol that is the same as the downlink sub-band of the sub-band full-duplex symbol, and the second resource region is the downlink sub-band of the sub-band full-duplex symbol.

3. The method according to claim 2, characterized in that, The grouping processing method includes: in the first case, for the code division multiplexing group portion located in the third resource region, processing is performed according to the lower-level type of the original type of the code division multiplexing group; the number of symbols included in the lower-level type of code division multiplexing group is less than the number of symbols included in the original type of code division multiplexing group; wherein, the third resource region is the frequency region of the non-subband full-duplex symbols that is the same as the uplink subband of the subband full-duplex symbols.

4. The method according to claim 1, characterized in that, The grouping processing method includes: in the second case, when at least one of the code division multiplexing groups is carried only by one of subband full-duplex symbols and non-subband full-duplex symbols, the at least one code division multiplexing group is processed according to the original type of the code division multiplexing group; The second situation includes: the transmission power of the sub-band full-duplex symbol and the transmission power of the non-sub-band full-duplex symbol do not meet the first preset condition, and / or the signal phase continuity of the sub-band full-duplex symbol and the non-sub-band full-duplex symbol does not meet the second preset condition.

5. The method according to claim 4, characterized in that, The grouping processing method includes: processing the code division multiplexing group portions located in the first resource region and the code division multiplexing group portions located in the third resource region according to the original type of the code division multiplexing group; processing the code division multiplexing group portions located in the second resource region using continuous or non-contiguous port numbers; wherein, the first resource region is the frequency region in the non-subband full-duplex symbol that is the same as the downlink subband of the subband full-duplex symbol, the second resource region is the downlink subband of the subband full-duplex symbol, and the third resource region is the frequency region in the non-subband full-duplex symbol that is the same as the uplink subband of the subband full-duplex symbol.

6. The method according to any one of claims 1-5, characterized in that, The grouping processing method includes: in the second case, when at least one of the code division multiplexing groups is carried on subband full-duplex symbols and non-subband full-duplex symbols, the code division multiplexing group portion of the at least one code division multiplexing group is processed according to the lower type of the original type of the at least one code division multiplexing group; The number of symbols used to carry the code division multiplexing group of the lower type is less than the number of symbols used to carry the code division multiplexing group of the original type; The second situation includes: the transmission power of the sub-band full-duplex symbol and the transmission power of the non-sub-band full-duplex symbol are inconsistent, and / or the signal phase of the sub-band full-duplex symbol and the signal phase of the non-sub-band full-duplex symbol are discontinuous.

7. The method according to claim 3 or 6, characterized in that, When the original type of the code division multiplexing group is code division multiplexing 4-frequency domain 2-time domain 2, the lower type of the original type is frequency domain code division multiplexing 2; When the original type of the code division multiplexing group is code division multiplexing 8-frequency domain 2-time domain 4, the lower type of the original type is code division multiplexing 4-frequency domain 2-time domain 2 or frequency domain code division multiplexing 2.

8. The method according to claim 7, characterized in that, When the number of sub-band full-duplex symbols is equal to the number of non-sub-band full-duplex symbols, the next level type of code division multiplexing 8-frequency domain 2-time domain 4 is code division multiplexing 4-frequency domain 2-time domain 2, and the next level type of code division multiplexing 4-frequency domain 2-time domain 2 is frequency domain code division multiplexing 2. When the number of sub-band full-duplex symbols and the number of non-sub-band full-duplex symbols are not equal, for the first target symbol, the lower-level type of code division multiplexing 8-frequency domain 2-time domain 4 is frequency domain code division multiplexing 2; for the second target symbol, the lower-level type of code division multiplexing 8-frequency domain 2-time domain 4 is frequency domain code division multiplexing 2, or code division multiplexing 4-frequency domain 2-time domain 2, or a combination of frequency domain code division multiplexing 2 and code division multiplexing 4-frequency domain 2-time domain 2. When the number of subband full-duplex symbols is greater than the number of non-subband full-duplex symbols, the first target symbol is the non-subband full-duplex symbol, and the second target symbol is the subband full-duplex symbol. When the number of subband full-duplex symbols is less than the number of non-subband full-duplex symbols, the first target symbol is the subband full-duplex symbol, and the second target symbol is the non-subband full-duplex symbol.

9. The method according to any one of claims 6-8, characterized in that, The step of processing according to a subtype of the original type of the at least one code division multiplexing group includes: processing the code division multiplexing group portion located in the first resource area and the code division multiplexing group portion located in the third resource area using a subtype of the original type of the code division multiplexing group; For code division multiplexing groups located in the second resource region, the lower type of the original type of the code division multiplexing group is used for processing; The first resource region is the frequency region in the non-subband full-duplex symbol that is the same as the downlink subband of the subband full-duplex symbol; the second resource region is the downlink subband of the subband full-duplex symbol; and the third resource region is the frequency region in the non-subband full-duplex symbol that is the same as the uplink subband of the subband full-duplex symbol.

10. The method according to any one of claims 1-3 or 5, characterized in that, The original type of the code division multiplexing group is code division multiplexing 8-frequency domain 2-time domain 4, code division multiplexing 4-frequency domain 2-time domain 2, or frequency domain code division multiplexing 2.

11. The method according to any one of claims 1-10, characterized in that, The information in the packet processing method is carried in the signaling sent by the network device to the terminal device.

12. A communication method, characterized in that, include: Send information about the packet processing method of at least one code division multiplexing group to the terminal device; Each of the at least one code division multiplexing (CDM) groups carries subband full-duplex symbols and / or non-subband full-duplex symbols; the packet processing method is used to instruct the terminal device to perform splitting processing on the internal components of each CDM group in the at least one CDM group, and each CDM group is split according to the packet processing method to obtain at least one CDM group part, wherein the phase continuity of different symbols in each CDM group part satisfies a first preset condition, and the power consistency satisfies a second preset condition; The channel state information reference signal for multiple antenna ports is sent to the terminal device; the channel state information reference signal is generated using code division multiplexing and includes at least one code division multiplexing group.

13. The method according to claim 12, characterized in that, The grouping processing method includes: in the first case, processing the code division multiplexing group portion located in the first resource area and / or the code division multiplexing group portion located in the second resource area according to the original type of the code division multiplexing group; The first situation includes: the transmission power of the sub-band full-duplex symbol and the transmission power of the non-sub-band full-duplex symbol are consistent with a first preset condition, and the signal phase continuity of the sub-band full-duplex symbol and the non-sub-band full-duplex symbol is consistent with a second preset condition. The first resource region is the frequency region in the non-sub-band full-duplex symbol that is the same as the downlink sub-band of the sub-band full-duplex symbol, and the second resource region is the downlink sub-band of the sub-band full-duplex symbol.

14. The method according to claim 13, characterized in that, The grouping processing method includes: in the first case, for the code division multiplexing group portion located in the third resource region, processing is performed according to the lower type of the original type of the code division multiplexing group; the number of symbols included in the lower type of code division multiplexing group is less than the number of symbols included in the original type of code division multiplexing group; wherein, the third resource region is the same frequency region in the non-subband full-duplex symbols as the uplink subband in the subband full-duplex symbols.

15. The method according to claim 12, characterized in that, The grouping processing method includes: in the second case, when at least one of the code division multiplexing groups is carried only by one of subband full-duplex symbols and non-subband full-duplex symbols, the at least one code division multiplexing group is processed according to the original type of the code division multiplexing group; The second situation includes: the transmission power of the sub-band full-duplex symbol and the transmission power of the non-sub-band full-duplex symbol do not meet the first preset condition, and / or the signal phase continuity of the sub-band full-duplex symbol and the non-sub-band full-duplex symbol does not meet the second preset condition.

16. The method according to claim 15, characterized in that, The grouping processing method includes: processing the code division multiplexing group portions located in the first resource region and the code division multiplexing group portions located in the third resource region according to the original type of the code division multiplexing group; processing the code division multiplexing group portions located in the second resource region using continuous or non-contiguous port numbers; wherein, the first resource region is the frequency region in the non-subband full-duplex symbol that is the same as the downlink subband of the subband full-duplex symbol, the second resource region is the downlink subband of the subband full-duplex symbol, and the third resource region is the frequency region in the non-subband full-duplex symbol that is the same as the uplink subband of the subband full-duplex symbol.

17. The method according to any one of claims 12-16, characterized in that, The grouping processing method includes: in the second case, when at least one of the code division multiplexing groups is carried on subband full-duplex symbols and non-subband full-duplex symbols, the code division multiplexing group portion of the at least one code division multiplexing group is processed according to the lower type of the original type of the at least one code division multiplexing group; The number of symbols used to carry the code division multiplexing group of the lower type is less than the number of symbols used to carry the code division multiplexing group of the original type; The second situation includes: the transmission power of the sub-band full-duplex symbol and the transmission power of the non-sub-band full-duplex symbol are inconsistent, and / or the signal phase of the sub-band full-duplex symbol and the signal phase of the non-sub-band full-duplex symbol are discontinuous.

18. The method according to claim 14 or 17, characterized in that, When the original type of the code division multiplexing group is code division multiplexing 4-frequency domain 2-time domain 2, the lower type of the original type is frequency domain code division multiplexing 2; When the original type of the code division multiplexing group is code division multiplexing 8-frequency domain 2-time domain 4, the lower type of the original type is code division multiplexing 4-frequency domain 2-time domain 2 or frequency domain code division multiplexing 2.

19. The method according to claim 18, characterized in that, When the number of sub-band full-duplex symbols is equal to the number of non-sub-band full-duplex symbols, the next level type of code division multiplexing 8-frequency domain 2-time domain 4 is code division multiplexing 4-frequency domain 2-time domain 2, and the next level type of code division multiplexing 4-frequency domain 2-time domain 2 is frequency domain code division multiplexing 2. When the number of sub-band full-duplex symbols and the number of non-sub-band full-duplex symbols are not equal, for the first target symbol, the lower-level type of code division multiplexing 8-frequency domain 2-time domain 4 is frequency domain code division multiplexing 2; for the second target symbol, the lower-level type of code division multiplexing 8-frequency domain 2-time domain 4 is frequency domain code division multiplexing 2, or code division multiplexing 4-frequency domain 2-time domain 2, or a combination of frequency domain code division multiplexing 2 and code division multiplexing 4-frequency domain 2-time domain 2. When the number of subband full-duplex symbols is greater than the number of non-subband full-duplex symbols, the first target symbol is the non-subband full-duplex symbol, and the second target symbol is the subband full-duplex symbol. When the number of subband full-duplex symbols is less than the number of non-subband full-duplex symbols, the first target symbol is the subband full-duplex symbol, and the second target symbol is the non-subband full-duplex symbol.

20. The method according to any one of claims 17-19, characterized in that, The step of processing according to the lower type of the original type of the at least one code division multiplexing group includes: for code division multiplexing groups located in the first resource area and code division multiplexing groups located in the third resource area, processing is performed using the lower type of the original type of the code division multiplexing group; For code division multiplexing groups located in the second resource region, the lower type of the original type of the code division multiplexing group is used for processing; The first resource region is the frequency region in the non-subband full-duplex symbol that is the same as the downlink subband of the subband full-duplex symbol; the second resource region is the downlink subband of the subband full-duplex symbol; and the third resource region is the frequency region in the non-subband full-duplex symbol that is the same as the uplink subband of the subband full-duplex symbol.

21. The method according to any one of claims 12-14 or 16, characterized in that, The original type of the code division multiplexing group is code division multiplexing 8-frequency domain 2-time domain 4, code division multiplexing 4-frequency domain 2-time domain 2, or frequency domain code division multiplexing 2.

22. The method according to any one of claims 12-21, characterized in that, The information in the packet processing method is carried in the signaling sent by the network device to the terminal device.

23. A chip system, comprising: Memory, used to store computer programs; processor; When the processor retrieves and runs the computer program from memory, it causes the communication device equipped with the chip system to perform the method of any one of claims 1 to 11; or, it causes the communication device equipped with the chip system to perform the method of any one of claims 12 to 22.

24. A communication device, characterized in that, include: Memory, used to store computer programs; processor; When the processor retrieves and runs the computer program from memory, it causes the communication device to perform the method of any one of claims 1 to 11; or, causes the communication device to perform the method of any one of claims 12 to 22.

25. A computer-readable storage medium, characterized in that, The storage medium stores a computer program or instructions that, when executed by a communication device, implement the method as described in any one of claims 1 to 11; or implement the method as described in any one of claims 12 to 22.

Images