METHOD FOR CONFIGURING CHANNEL STATE INFORMATION REFERENCE SIGNAL RESOURCES, AND COMMUNICATION DEVICE

Description

/ 89 METHOD FOR CONFIGURING CHANNEL STATE INFORMATION REFERENCE SIGNAL RESOURCES, AND COMMUNICATION DEVICE Field

[001] The present invention relates to a field of communication technology and, in particular, to a method and apparatus for configuring a channel state information reference signal (CSI-RS) feature. Background of the Invention

[002] In wireless communication systems, coordinated multipoint transmission (CoMP) technology can improve edge coverage and provide balanced quality of service for each user in a service area. The base station calculates a pre-encoding vector / matrix for each user based on each user's channel state information (CSI) and then sends continuous data streams to a plurality of users simultaneously on identical time-frequency resources.

[003] In order to determine a scheduled modulation and encoding level for each user, the base station needs to know a signal-to-interference-plus-noise ratio (SINR) for each user when continuous data streams are sent to the plurality of users simultaneously on identical time-frequency resources. In a new radio (NR) system, a channel state information reference signal (CSI-RS) is defined for interference measurement. The base station indicates CSI-RS resources for channel measurement and CSI-RS resources for interference measurement for each user, which can accurately measure the SINR of each terminal.

[004] However, when the NTRP number of transmit and receive points (TRPs) used for coherent joint transmission (CJT) is greater than one, configuring all CSI-RS resources to achieve CJT from each TRP is an urgent problem to be solved. Petition 870250120923, dated 12 / 29 / 2025, page 7 / 222 / 89 Summary

[005] Embodiments of the present invention provide a method and apparatus for configuring channel state information reference signal (CSI-RS) resources, which can be applied to an Internet of Vehicles (IoV) such as vehicle-to-everything (V2X) communication, Long Term Evolution-Vehicle (LTE-V) communication, vehicle-to-vehicle (V2V) communication, etc., or can be used in intelligent driving, intelligent connected vehicles and other fields. By determining a configured time-frequency pattern of all CSI-RS resources and configuring all CSI-RS resources for a terminal according to the configured time-frequency pattern, the network device obtains N pieces of downlink channel information from each receive-transmit point (TRP) to the terminal through the N configured CSI-RS resources, which achieves coherent joint transmission (CJT) of each TRP in a plurality of TRPs.Configuring all CSI-RS features in this way can reduce the impact on system performance.

[006] In a first aspect, an embodiment of the present invention provides a method for configuring CSI-RS resources, performed by a network device. The method includes: determining, according to a number of ports of each CSI-RS resource among N CSI-RS resources and / or a number of CSI-RS resources configured for a terminal, a configured time-frequency pattern of the N CSI-RS resources, where each CSI-RS resource corresponds to a TRP for CJT, and N is an integer greater than 1; and configuring, according to the configured time-frequency pattern, the N CSI-RS resources for the terminal.

[007] In this technical solution, the network device determines the configured time-frequency pattern of the N CSI-RS resources according to the number of ports of each CSI-RS resource among the N CSI-RS resources and / or the number of CSI-RS resources configured for the terminal, and Petition 870250120923, dated 12 / 29 / 2025, page 8 / 222 / 89, configures the N CSI-RS resources for the terminal according to the configured time-frequency pattern, so that the network device obtains N pieces of downlink channel information from the TRP to the terminal through the N configured CSI-RS resources, and achieves the CJT of each TRP in the plurality of TRPs. Configuring all CSI-RS resources in this way can reduce the impact on system performance.

[008] In a second aspect, an embodiment of the present invention provides another method for configuring CSI-RS resources, performed by a terminal. The method includes: receiving CSI-RS resource configuration information and / or CSI reporting resource configuration information sent by a network device, wherein the CSI-RS resource configuration information includes a port number for each CSI-RS resource among N CSI-RS resources and / or a number of CSI-RS resources, each CSI-RS resource corresponding to a TRP for CJT, and N is an integer greater than 1; determining, according to the CSI-RS resource configuration information and / or the CSI reporting resource configuration information, a configured time-frequency pattern of the N CSI-RS resources; and determining, according to the configured time-frequency pattern, resource positions of the N CSI-RS resources.

[009] In this technical solution, the terminal determines the configured time-frequency pattern of the N CSI-RS resources according to the number of ports of each CSI-RS resource among the N CSI-RS resources and / or the number of CSI-RS resources configured by the network device, and determines the resource positions of the N CSI-RS resources according to the configured time-frequency pattern, so that the network device obtains N pieces of downlink channel information from the TRP to the terminal through the N configured CSI-RS resources, and achieves the CJT of each TRP in the plurality of TRPs. Configure all CSI-RS resources Petition 870250120923, dated 12 / 29 / 2025, page 9 / 222 / 89, in this way it can reduce the impact on system performance.

[0010] In a third aspect, an embodiment of the present invention provides a communication apparatus that has functions implementing some or all of the functions of the network device in the method described in the first aspect set forth. For example, the functions of the communication apparatus may have the functions of some or all of the embodiments in the present invention, or may have the functions implementing any of the embodiments in the present invention only. The functions may be implemented by hardware, or by hardware running corresponding software. Hardware or software includes one or more units or modules corresponding to the functions set forth.

[0011] In one implementation, the communication device structure may include a transceiver module and a processing module, and the processing module is configured to support the communication device in performing corresponding functions in the methods described. The transceiver module is configured to support communication between the communication device and other devices. The communication device may additionally include a storage module, which is coupled to the transceiver module and the processing module, and stores computer programs and data necessary for the communication device.

[0012] In one implementation, the processing module is configured to determine, based on a number of ports for each CSI-RS resource among N CSI-RS resources and / or a number of CSI-RS resources configured for a terminal, a configured time-frequency pattern for the N CSI-RS resources, where each CSI-RS resource corresponds to a TR for CJT, and N is an integer greater than 1. The processing module also configures, according to the configured time-frequency pattern, the N CSI-RS resources for the terminal. Petition 870250120923, dated 12 / 29 / 2025, page 10 / 222 / 89

[0013] In a fourth aspect, an embodiment of the present invention provides a communication apparatus that has functions implementing some or all of the functions of the terminal in the method described in the second aspect set forth. For example, the functions of the communication apparatus may have the functions of some or all of the embodiments in the present invention, or may have the functions implementing any of the embodiments in the present invention only. The functions may be implemented by hardware, or by hardware running corresponding software. Hardware or software includes one or more units or modules corresponding to the functions set forth.

[0014] In one implementation, the communication device structure may include a transceiver module and a processing module, and the processing module is configured to support the communication device in performing corresponding functions in the methods described. The transceiver module is configured to support communication between the communication device and other devices. The communication device may additionally include a storage module, which is coupled to the transceiver module and the processing module and stores computer programs and data necessary for the communication device.

[0015] In one implementation, the transceiver module is configured to receive CSI-RS resource configuration information and / or CSI reporting resource configuration information sent by a network device, wherein the CSI-RS resource configuration information includes a port number for each CSI-RS resource from among N CSI-RS resources and / or a number of CSI-RS resources, each CSI-RS resource corresponding to a TRP for CJT, and N is an integer greater than 1. The processing module is configured to determine, based on the CSI-RS resource configuration information and / or the information from Petition 870250120923, dated 12 / 29 / 2025, page 11 / 222 / 89 CSI reporting resource configuration, a configured time-frequency pattern of the N CSI-RS resources. The processing module is configured to determine, according to the configured time-frequency pattern, resource positions of the N CSIRS resources.

[0016] In a fifth aspect, an embodiment of the present invention provides a communication device, which includes a processor. When the processor calls a computer program in memory, the method described in the first aspect is executed.

[0017] In a sixth aspect, an embodiment of the present invention provides a communication device, which includes a processor. When the processor calls a computer program in memory, the method described in the second aspect set forth is executed.

[0018] In a seventh aspect, an embodiment of the present invention provides a communication device, which includes a processor and a memory that stores a computer program. When the computer program is executed by the processor, the communication device performs the method described in the first aspect set forth.

[0019] In an eighth aspect, an embodiment of the present invention provides a communication device, which includes a processor and a memory that stores a computer program. When the computer program is executed by the processor, the communication device performs the method described in the second aspect set forth.

[0020] In a ninth aspect, an embodiment of the present invention provides a communication device, which includes a processor and an interface circuit. The interface circuit is configured to receive instructions in code and transmit the instructions in code to the processor. The processor is configured to execute the instructions in code, and the communication device performs the method described in the first aspect. Petition 870250120923, dated 12 / 29 / 2025, p. 12 / 222 / 89 exposed.

[0021] In a tenth aspect, an embodiment of the present invention provides a communication device, which includes a processor and an interface circuit. The interface circuit is configured to receive instructions in code and transmit the instructions in code to the processor. The processor is configured to execute the instructions in code, and the communication device performs the method described in the second aspect set forth.

[0022] In an eleventh aspect, an embodiment of the present invention provides a system for configuring CSI-RS capabilities, including the communication apparatus described in the third aspect disclosed and the communication apparatus described in the fourth aspect disclosed, or including the communication device described in the fifth aspect disclosed and the communication device described in the sixth aspect disclosed, or including the communication device described in the seventh aspect disclosed and the communication device described in the eighth aspect disclosed, or including the communication device described in the ninth aspect disclosed and the communication device described in the tenth aspect disclosed.

[0023] In a twelfth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing instructions used by the aforementioned network device and, when the instructions are executed, the network device performs the method described in the first aspect set forth.

[0024] In a thirteenth aspect, an embodiment of the present invention provides a readable storage means for storing instructions used by the aforementioned terminal and, when the instructions are executed, the terminal performs the method described in the second aspect set forth.

[0025] In a fourteenth aspect, the present invention further provides a computer program product that includes a Petition 870250120923, dated 12 / 29 / 2025, page 13 / 222 / 89 computer program that, when executed on a computer, enables the computer to perform the method described in the first aspect presented.

[0026] In a fifteenth aspect, the present invention further provides a computer program product that includes a computer program which, when executed on a computer, enables the computer to perform the method described in the second aspect set forth.

[0027] In a sixteenth aspect, the present invention provides a system-on-a-chip that includes at least one processor and an interface to support the network device to implement the functions involved in the first aspect disclosed, for example, determining or processing at least one of the data or information involved in the method disclosed. In a possible design, the system-on-a-chip also includes a memory, which is used to store computer programs and data necessary for the network device. The system-on-a-chip may be composed of chips, or it may include chips and other discrete devices.

[0028] In a seventeenth aspect, the present invention provides a system-on-a-chip that includes at least one processor and an interface to support the terminal for implementing the functions involved in the second aspect disclosed, for example, determining or processing at least one piece of data or information involved in the method disclosed. In a possible design, the system-on-a-chip also includes a memory, which is used to store computer programs and data necessary for the terminal. The system-on-a-chip may be composed of chips, or it may include chips and other discrete devices.

[0029] In an eighteenth aspect, the present invention provides a computer program that, when executed on a computer, enables the computer to perform the method described in the first aspect set forth.

[0030] In the nineteenth aspect, the present invention provides a computer program which, when executed on a computer, enables Petition 870250120923, dated 12 / 29 / 2025, page 14 / 222 / 89 the computer to perform the method described in the second aspect presented. Brief Description of the Drawings

[0031] In order to explain more clearly the technical solutions in the embodiments of the description or of the fundamentals of the invention, the necessary accompanying drawings that are used in the embodiments of the description or of the fundamentals of the invention are described below.

[0032] Figure 1 is a diagram of a communication system architecture according to a modality of the description.

[0033] Figure 2 is a flowchart of a method for configuring CSI-RS resources according to a modality of the description.

[0034] Figure 3 is a flowchart of another method for configuring CSI-RS resources according to a modality of the description.

[0035] Figure 4 is an example diagram of the configuration of N CSI-RS resources within a slot according to an embodiment of the present invention.

[0036] Figure 5 is a flowchart of another method for configuring CSI-RS resources according to a modality of the description.

[0037] Figure 6 is a flowchart of another method for configuring CSI-RS resources according to a modality of the description.

[0038] Figure 7 is a flowchart of another method for configuring CSI-RS resources according to a modality of the description.

[0039] Figure 8 is a flowchart of another method for configuring CSI-RS resources according to a modality of the description.

[0040] Figure 9 is an example diagram of the configuration of N CSI-RS resources in two slots according to an embodiment of the present invention.

[0041] Figure 10 is a flowchart of another method for configuring CSI-RS resources according to an embodiment of the present invention. Petition 870250120923, dated 12 / 29 / 2025, page 15 / 222 / 89

[0042] Figure 11 is a flowchart of another method for configuring CSI-RS resources according to an embodiment of the present invention.

[0043] Figure 12 is a flowchart of another method for configuring CSI-RS resources according to an embodiment of the present invention.

[0044] Figure 13 is a flowchart of another method for configuring CSI-RS resources according to an embodiment of the present invention.

[0045] Figure 14 is a structural diagram of a communication apparatus according to an embodiment of the present invention.

[0046] Figure 15 is a structural diagram of a communication device according to an embodiment of the present invention.

[0047] Figure 16 is a structural diagram of a chip according to an embodiment of the present invention. Detailed Description

[0048] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, all of which identical or similar reference numbers represent identical or similar elements or elements having identical or similar functions. The embodiments described below in relation to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be interpreted as limiting the present invention. In the description of the present invention, unless otherwise specified, the character “ / ” means “or”, for example, A / B may mean A or B; the character “and / or” shown here is merely a way of describing an association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B may mean: A exists individually, A and B exist at the same time, and B exists Petition 870250120923, dated 12 / 29 / 2025, p. 16 / 222 / 89 individually.

[0049] The terms used in embodiments of the present invention are for the sole purpose of describing specific embodiments and are not intended to limit embodiments of the present invention. As used in the present invention and appended claims, the singular forms “a / an” and “the” are intended to also include the plural forms, unless the context clearly indicates otherwise.

[0050] It should be understood that although the terms first, second, third, etc. may be used to describe various information in embodiments of the present invention, the information should not be limited to these terms. These terms are used only to distinguish information of identical type from one another. For example, without departing from the scope of embodiments of the present invention, first information may also be referred to as second information and, similarly, second information may also be referred to as first information. Depending on the context, the words “if” and “in the case of / where”, as used herein, may be interpreted as “when” or “while” or “in response to a determination”.

[0051] In wireless communication systems, coordinated multipoint transmission (CoMP) technology can improve edge coverage and provide balanced quality of service for each user in a service area. The base station calculates a pre-encoding vector / matrix for each user based on each user's channel state information (CSI) and then sends continuous data streams to a plurality of users simultaneously on identical time-frequency resources.

[0052] In order to determine a scheduled modulation and encoding level for each user, the base station needs to know a signal-to-interference-plus-noise ratio (SINR) for each user when continuous data streams are sent to the plurality of users simultaneously on identical time-frequency resources. In a system Petition 870250120923, dated 12 / 29 / 2025, page 17 / 222 / 89 new radio (NR), a channel state information reference signal (CSI-RS) is defined for interference measurement. The base station indicates CSI-RS capabilities for channel measurement and CSI-RS capabilities for interference measurement for each user, which can accurately measure the SINR of each terminal.

[0053] A number N (or Ntrp) of transmit and receive points (TRPs) used for coherent joint transmission (CJT) can be configured to any one of 2, 3, or 4, and a corresponding CSI-RS resource is configured for each TRP for downlink channel estimation. A number of ports P of each CSI-RS resource can be configured as P = 4, 8, 12, 16, 24, or 32, and the number of ports of each CSI-RS resource among all CSI-RS resources is identical. For different CJT conditions, a total number of CSI-RS ports during the configuration of various numbers of CSI-RS resource ports is shown in Table 1. When P = 4, 8, or 12, a CSI-RS resource density is configured as 1 resource unit / resource block / port (1 RE / RB / port). When P = 16, 24, or 32, the CSI-RS resource density is configured as 1 RE / RB / port or 0.5 RE / RB / port. Table 1 Total number of CSI-RS ports during the configuration of multiple CSI-RS resource ports for CJT from a plurality of TRPs_______ N or Ntrp 2 3 4 P 4 8 12 16 8 16 24 32 12 24 36 48 16 32 48 64 24 48 72 96 32 64 96 128

[0054] It can be understood that each element in Table 1 exists independently. These elements are exemplarily listed in an identical Table, but this does not mean that all elements in the Table must exist at the same time, in the way shown in the Table. A value of each element is independent of a value of any other element in Table 1. Petition 870250120923, dated 12 / 29 / 2025, p. 18 / 222 13 / 89 Therefore, those skilled in the art can understand that the value of each element in Table 1 is an independent embodiment. It is necessary to note that the embodiments of the present invention include a plurality of tables. Each of the tables is similar to Table 1, which combines a plurality of independent embodiments into an identical table, and each element in these tables should also be considered as an independent embodiment.

[0055] For different partial bandwidth sizes, sub-band sizes are also different, as shown in Table 2. Table 2 Configurable sub-band size_____________________ Partial bandwidth (PRBs) Sub-band size (PRBs) 24-72 4.8 73-144 8.16 145-275 16.32

[0056] As can be seen from Tables 1 and 2 shown, when Ntrp = 4, P = 32, and the CSI-RS resource density is 1, 128 resource elements (REs) can be occupied in a physical resource block (PRB), which means that not all CSI-RS resources can be completely accommodated in a resource block (RB). That is, at this point, not all CSI-RS resources can be transmitted within a slot.

[0057] If the codebook parameter R = 2 and the subband size is 4 RBs, and if low-density CSI-RS features are configured, such as 0.5 RE / RB / port, degraded pre-coding performance may occur. Therefore, how to configure all CSI-RS features to reduce the impact on system performance is a problem to be solved.

[0058] To this end, an embodiment of the present invention provides a method and apparatus for configuring CSI-RS resources, which can achieve CJT of each TRP in the plurality of TRPs and reduce the impact on system performance by configuring the plurality of CSI-RS resources for the Petition 870250120923, dated 12 / 29 / 2025, p. 19 / 222 / 89 terminal. In order to better understand the method for configuring CSI-RS features described in the embodiments of the present invention, a communication system in which the embodiments of the present invention are applicable is described first below.

[0059] With regard to Figure 1, it is a diagram of an architecture of a communication system according to an embodiment of the present invention. The communication system may include, but is not limited to, a network device and a terminal. The number and form of the devices shown in Figure 1 are examples only, which does not constitute a limitation on the embodiments of the present invention. In actual applications, two or more network devices and two or more terminals may be included. The communication system shown in Figure 1 includes a network device 101 and two terminals 102 as an example.

[0060] It should be noted that the technical solutions of the embodiments of the present invention can be applied to various communication systems, for example, a Long Term Evolution (LTE) system, a fifth-generation (5G) mobile communication system, a 5G NR system, or other future novel mobile communication systems.

[0061] The network device 101 in the embodiment of the present invention is an entity on the network side for transmitting or receiving signals. For example, the network device 101 may be an evolved NodeB (eNB), a TRP, a next-generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system, etc. The specific technology and specific device form adopted by the network device are not limited in the embodiments of the present invention. The network device provided by the embodiment of the present invention may be composed of a centralized unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure may be used to Petition 870250120923, dated 12 / 29 / 2025, p. 20 / 222 / 89 divide a protocol layer of the network device, such as a base station, so that some functions of the protocol layer are centrally controlled by the CU, and the remaining part or all of the protocol layer functions are distributed in the DU, which is centrally controlled by the CU.

[0062] Terminal 102 in the embodiment of the present invention is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal may also be referred to as a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc. The terminal may be a vehicle with a communication capability, a smart car, a mobile phone, a wearable device, a tablet computer, a computer with a wireless transceiver capability, a Virtual Reality (VR) terminal, an Augmented Reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in autonomous driving, a wireless terminal in remote medical surgery, a wireless terminal in smart networks, a wireless terminal in transport security, a wireless terminal in a smart city, a wireless terminal in a smart home, or similar.The specific technology and device forms adopted by the terminal are not limited to the embodiments of the present invention.

[0063] It may be understood that the communication system described in embodiments of the present invention is for the purpose of illustrating more clearly the technical solution of embodiments of the present invention, and does not constitute a limitation on the technical solution provided by embodiments of the present invention. Those skilled in the art may know that, with the evolution of system architecture and the emergence of new service scenarios, the technical solution provided by embodiments of the present invention is also applicable to similar technical problems.

[0064] The method and apparatus for configuring CSI-RS resources of Petition 870250120923, dated 12 / 29 / 2025, p. 21 / 222 / 89 in accordance with the present invention are described in detail below in relation to the attached drawings.

[0065] With regard to Figure 2, it is a flowchart of a method for configuring CSI-RS resources according to an embodiment of the present invention. It should be noted that the method can be performed by a network device. As shown in Figure 2, the method may include, but is not limited to, the following steps in 201-202.

[0066] In 201, a configured time-frequency pattern of N CSI-RS resources is determined according to a number of ports of each CSI-RS resource among the N CSI-RS resources and / or a number of CSI-RS resources configured for the terminal.

[0067] In some embodiments, the number of ports for each CSI-RS resource among the N (or Ntrp) CSI-RS resources and / or the number of CSI-RS resources configured for the terminal can be determined. In the embodiments of the present invention, each CSI-RS resource corresponds to a TRP, and N (or Ntrp) is an integer greater than 1.

[0068] In one implementation, the network device can configure the number of CSI-RS resources (or the number of TRPs) for the terminal, where each CSI-RS resource corresponds to one TRP, that is, the number of CSI-RS resources is identical to the number of TRPs. In this mode, the network device can determine the number of CSI-RS resources configured for the terminal, that is, determine the number of TRPs configured for the terminal.

[0069] In one implementation, the network device can configure the number of ports for each CSI-RS resource from among the N CSIRS resources for the endpoint. In this mode, the network device can determine the number of ports for each CSI-RS resource from among the N CSIRS resources configured for the endpoint, where the number of CSI-RS resources is consistent with the number of TRPs. Petition 870250120923, dated 12 / 29 / 2025, page 22 / 222 / 89

[0070] In one implementation, the network device can configure the number N of CSI-RS resources and the number of ports for each CSI-RS resource from among the N CSI-RS resources for the endpoint. In this mode, the network device can determine the number N of CSI-RS resources configured for the endpoint and the number of ports for each CSI-RS resource from among the N CSI-RS resources. Each TRP is associated with a CSI-RS resource for downlink channel estimation.

[0071] In one possible implementation, the number of TRPs (or the number of CSI-RS resources) N (or Ntrp) can be configured to be, but without limitation, any of the following values: 2, 3, or 4. As an example, the number of TRps (or the number of CSI-RS resources) N (or Ntrp) can be configured as 2, 3, or 4.

[0072] In one possible implementation, the number of ports p of each CSI-RS resource can be configured to be, but without limitation, any of the following values: 4, 8, 12, 16, 24, or 32. As an example, the number of ports p of each CSI-RS resource can be configured as P = 4, 8, 12, 16, 24, or 32. Among the N CSIRS resources, the number of ports of each CSI-RS resource is identical.

[0073] Optionally, since each TRp is configured with a corresponding CSI-RS resource for downlink channel estimation, the number of CSI-RS resources is identical to the number of TRPs.

[0074] In one embodiment of the present invention, a first limit value and a second limit value may be predefined, wherein the first limit value may be represented by the symbol pth, and the first limit value is a limit value of the total number of CSI-RS resource ports out of the N CSI-RS resources in a single slot (or one slot). The second limit value may be represented by the symbol Nth, and the second limit value is a limit value of the total number of CSI-RS resources out of the N CSI-RS resources in a single slot (or one slot). Optionally, the first limit value and / or the Petition 870250120923, dated 12 / 29 / 2025, page 23 / 222 / 89 second limit value can be configured by the network device for the terminal, or can be pre-configured, or can be pre-defined by negotiation between the network device and the terminal, or can be reported by the terminal, which is not limited in the description and will not be repeated again.

[0075] In one embodiment of the present invention, a constraint condition for configuring the N (or Ntrp) CSI-RS resources within a slot can be defined. In one implementation, the constraint condition for configuring the N (or Ntrp) CSI-RS resources within a slot is defined as follows: when Ptot < Pth or NTRP < Nth, the NTRP CSI-RS resources are within a slot (for convenience of description, this definition is referred to as Definition 1 hereafter), where Ptot is the total number of ports of the NTRP CSI-RS resources.

[0076] In one implementation, the constraint condition for configuring the N (or Ntrp) CSI-RS resources within a slot is defined as follows: when Ptot > Pth or NTRP > Nth, assuming that the densities of the NTRP CSI-RS resources are identical and the densities are 0.5 RE / RB / port, the Ntrp CSI-RS resources are within a slot (for convenience of description, this definition is referred to as Definition 2 below).

[0077] In one implementation, the constraint condition for configuring the N (or Ntrp) CSI-RS resources within a slot is defined as follows: when Ptot > Pth and the codebook parameter R=1, assuming that the densities of the Ntrp CSI-RS resources are identical and the densities are 0.5 RE / RB / port, the Ntrp CSI-RS resources are within a slot (for convenience of description, this definition is referred to as Definition 3 below).

[0078] That is, the network device can determine the configured time-frequency pattern of the N CSI-RS resources based on the Petition 870250120923, dated 12 / 29 / 2025, page 24 / 222 / 89, restrictive conditions in Definition 1, Definition 2, or Definition 3 as set forth. That is, it is determined whether the restrictive conditions for configuring the N CSI-RS resources within a slot are met. If it is determined that the restrictive conditions for configuring the N CSI-RS resources within a slot are met, a method for configuring the N CSI-RS resources within a slot may be adopted to configure the N CSI-RS resources within a slot. If it is determined that the restrictive conditions for configuring the N CSI-RS resources within a slot are not met (that is, the restrictive conditions in Definition 1, Definition 2, and Definition 3 are not met), a method for configuring the N CSI-RS resources within a plurality of slots may be adopted to configure the N CSI-RS resources within the plurality of slots.The plurality of slots can include adjacent slots or non-adjacent slots. As an example, if it is determined that the constraint conditions for configuring the N CSI-RS resources within a slot are not met (that is, the constraint conditions in Definition 1, Definition 2, and Definition 3 as described are not met), the N CSI-RS resources can be configured in two adjacent slots.

[0079] In one possible implementation, the network device can determine a total Ptot number of ports of the N CSI-RS resources based on the number of CSI-RS resources and the number of ports of each CSI-RS resource. The network device determines the configured time-frequency pattern of the N CSI-RS resources based on the total Ptot number of ports of the N CSI-RS resources and the first threshold value. As an example, the network device compares the total Ptot number of ports of the N CSI-RS resources with the first threshold value, and determines the configured time-frequency pattern of the N CSI-RS resources based on the result of the comparison.

[0080] In one possible implementation, the network device can Petition 870250120923, dated 12 / 29 / 2025, page 25 / 222 / 89 determine the configured time-frequency pattern of the N CSIRS resources according to the number N (or Ntrp) of CSI-RS resources and the second threshold value. As an example, the network device compares the number N (or Ntrp) of CSI-RS resources with the second threshold value, and determines the configured time-frequency pattern of the N CSI-RS resources according to a result of the comparison.

[0081] In one possible implementation, the network device determines the total Ptot number of ports of the N CSI-RS resources based on the number of CSI-RS resources and the number of ports of each CSI-RS resource. The network device determines the configured time-frequency pattern of the N CSI-RS resources based on the total Ptot number of ports of the N CSI-RS resources, the number N (or Ntrp) of CSI-RS resources, the first threshold value, and the second threshold value. As an example, the network device compares the total Ptot number of ports of the N CSI-RS resources with the first threshold value, compares the number N (or Ntrp) of CSI-RS resources with the second threshold value, and determines the configured time-frequency pattern of the N CSI-RS resources based on the two comparison results.

[0082] In one possible implementation, the network device determines the total Ptot number of ports of the N CSI-RS resources according to the number of CSI-RS resources and the number of ports of each CSI-RS resource. The network device determines the density of each CSI-RS resource configured for the endpoint, and determines the configured time-frequency pattern of the N CSI-RS resources according to the total Ptot number of ports of the N CSI-RS resources, the first threshold value, and the density of each CSI-RS resource.

[0083] In one possible implementation, the network device determines the density of each CSI-RS resource configured for the endpoint, and determines the configured time-frequency pattern of the N Petition 870250120923, dated 12 / 29 / 2025, page 26 / 222 / 89 CSI-RS resources according to the number N (or Ntrp) of CSIRS resources, the second limit value, and the density of each CSI-RS resource.

[0084] In one possible implementation, the network device determines the total Ptot number of ports of the N CSI-RS resources according to the number of CSI-RS resources and the number of ports of each CSI-RS resource. The network device determines the density of each CSI-RS resource configured for the terminal, and determines the codebook parameter R configured for the terminal, and determines the time frequency pattern configured for the N CSI-RS resources according to the total Ptot number of ports of the N CSI-RS resources, the first threshold value, the codebook parameter R, and the density of each CSI-RS resource.

[0085] It should be noted that, in some embodiments, terms such as “codebook”, “codeword”, and “precoding vector / matrix” may be used interchangeably. For example, the codebook may be a collection of one or more codewords and precoding matrices.

[0086] In 202, the N CSI-RS resources are configured for the terminal according to the configured time-frequency pattern.

[0087] In this embodiment of the present invention, the N CSIRS resources are used by the network device to obtain N pieces of downlink channel information from the TRP to the terminal.

[0088] In one embodiment of the present invention, the network device can determine a configured sub-band size for the terminal, and configure the N CSI-RS resources for the terminal using a corresponding time-frequency pattern configured according to the sub-band size, the density of each CSI-RS resource, and the number of ports of each CSI-RS resource.

[0089] In an implementation, when the network device determines that the time-frequency pattern configured for the N resources Petition 870250120923, dated 12 / 29 / 2025, page 27 / 222 / 89 of CSI-RS is a first configured time-frequency pattern; the first configured time-frequency pattern indicates the mapping of time-frequency domain resources of the N CSI-RS resources within a slot. That is, when the N CSI-RS resources need to be configured within a slot, the network device can use the first configured time-frequency pattern to configure the N CSI-RS resources for the terminal within a slot.

[0090] In another implementation, the network device determines that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern, and the second configured time-frequency pattern indicates the mapping of time-frequency domain resources of the N CSI-RS resources within a plurality of slots (such as two). If there is a need to configure the N CSI-RS resources in two slots, the network device can use the second configured time-frequency pattern to configure the N CSI-RS resources for the terminal in two slots.

[0091] By implementing this embodiment of the present invention, the network device can determine the appropriate configured time-frequency pattern for the N CSI-RS resources according to the number of ports of each CSI-RS resource among the N CSI-RS resources and / or the number of CSI-RS resources configured for the terminal, and configure the N CSI-RS resources for the terminal according to the configured time-frequency pattern, so that the network device obtains N pieces of downlink channel information from the TRP to the terminal through the N configured CSI-RS resources, and achieves CJT from each TRP in the plurality of TRPs. By rationally configuring all CSI-RS resources in this configuration manner, the impact on system performance can be reduced.

[0092] It is necessary to note that, in the present modalities Petition 870250120923, dated 12 / 29 / 2025, page 28 / 222 / 89 invention, in the case of determination, based on definition 1 set forth, that the Ntrp CSI-RS resources can be configured within a slot, the network device can adopt the method to configure the Ntrp CSI-RS resources within a slot to configure the Ntrp CSI-RS resources for the terminal. Regarding Figure 3, it is a flowchart of another method for configuring CSI-RS resources according to an embodiment of the present invention. It should be noted that the method can be performed by a network device. As shown in Figure 3, the method may include, but is not limited to, the following steps in 301-304.

[0093] In 301, a total number of ports for N CSI-RS resources is determined based on the number of ports for each CSI-RS resource among the N CSI-RS resources and the number of CSI-RS resources configured for the terminal.

[0094] In the embodiment of the present invention, each CSI-RS resource corresponds to a TRP for CJT, and N is an integer greater than 1.

[0095] Optionally, N can be used to represent the number of CSI-RS resources, and P can be used to represent the number of ports of each CSI-RS resource, and the number of ports of each of the CSI-RS resources is identical. In one implementation, the number N of CSI-RS resources is multiplied by the number p of ports of each CSI-RS resource, and the value obtained by the multiplication operation is determined as the total number of ports of the N CSI-RS resources. The total number of ports of the N CSI-RS resources can be represented by Ptot.

[0096] In 302, it is determined that the total number of ports of the N CSI-RS resources is less than or equal to a first limit value, and / or that the number of CSI-RS resources is less than or equal to a second limit value.

[0097] In the embodiment of the present invention, the first limit value is a limit value of the total number of CSI-RS resource ports of the N CSI-RS resources in a single slot, and the second limit value is a value Petition 870250120923, dated 12 / 29 / 2025, page 29 / 222 / 89 limit of a total number of CSI-RS resources from the N CSI-RS resources in a single slot.

[0098] In one possible implementation, the network device determines a configured time-frequency pattern of the N CSI-RS resources based on the total Ptot number of ports of the N CSI-RS resources and the first threshold value. As an example, the network device compares the total Ptot number of ports of the N CSI-RS resources with the first threshold value to determine if the total number of ports of the N CSI-RS resources is less than or equal to the first threshold value. If the total number of ports of the N CSI-RS resources is less than or equal to the first threshold value, i.e., Ptot < Pth, the network device can perform step 303, i.e., determine that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern. That is, the N CSI-RS resources can be configured within a slot.

[0099] In one possible implementation, the network device can determine the configured time-frequency pattern of the N CSIRS resources based on the number N (or Ntrp) of CSI-RS resources and the second threshold value. As an example, the network device compares the number N (or Ntrp) of CSI-RS resources with the second threshold value to determine if the number N (or Ntrp) of CSI-RS resources is less than or equal to the second threshold value. If the number Ntrp of CSI-RS resources is less than or equal to the second threshold value, i.e., NTRP < Nth, the network device can perform step 303, i.e., determine that the configured time-frequency pattern of the N CSI-RS resources is the first configured time-frequency pattern. That is, the N CSI-RS resources can be configured within a slot.

[00100] In one possible implementation, the network device determines the total port count (ptot) of the N CSI-RS resources based on the number of CSI-RS resources and the number of ports for each resource. Petition 870250120923, dated 12 / 29 / 2025, p. 30 / 222 / 89 of CSI-RS. The network device determines the configured time-frequency pattern of the N CSI-RS resources based on the total Ptot number of ports of the N CSI-RS resources, the number N (or Ntrp) of CSI-RS resources, the first threshold value, and the second threshold value. As an example, the network device compares the total Ptot number of ports of the N CSI-RS resources with the first threshold value, compares the number N (or Ntrp) of CSI-RS resources with the second threshold value, and determines whether the total Ptot number of ports of the N CSI-RS resources is less than or equal to the first threshold value and whether the number of CSI-RS resources is less than or equal to the second threshold value.If the total number of ports of the N CSI-RS resources is less than or equal to the first threshold value and the Ntrp number of CSI-RS resources is less than or equal to the second threshold value, that is, Ptot < Pth and NTRP < Nth, the network device can execute step 303, that is, determine that the configured time-frequency pattern of the N CSI-RS resources is the first configured time-frequency pattern. That is, the N CSI-RS resources can be configured within a slot.

[00101] In 303, it is determined that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern.

[00102] In the embodiment of the present invention, the first configured time-frequency pattern indicates the time-frequency domain feature mapping of the N CSI-RS features within a slot.

[00103] That is, when the network device determines that the total number of ports of the N CSI-RS resources is less than or equal to the first threshold value, and / or the number of CSI-RS resources is less than or equal to the second threshold value, it can be determined that the configured time-frequency pattern of the N CSI-RS resources is the first configured time-frequency pattern. That is, the N CSI-RS resources can be configured within a slot. Petition 870250120923, dated 12 / 29 / 2025, page 31 / 222 / 89

[00104] In 304, the N CSI-RS resources are configured for the terminal according to the configured time-frequency pattern.

[00105] In the embodiment of the present invention, the network device determines that the configured time-frequency pattern of the N CSI-RS resources is the first configured time-frequency pattern. The first configured time-frequency pattern can be used to configure the N CSI-RS resources within a slot, to configure the N CSI-RS resources for the terminal. That is, the network device can configure the N CSI-RS resources within a slot, to configure the N CSI-RS resources for the terminal.

[00106] Optionally, in one embodiment of the present invention, the present invention defines the method for configuring the N CSI-RS resources within a slot as follows: Method 1-1, configure the N CSI-RS resources with identical or different CSI-RS resource densities within a slot. In one implementation, the network device may determine a configured sub-band size for the terminal; the network device may determine a density of each CSI-RS resource configured for the terminal, wherein the density of each CSI-RS resource is identical or different; and the network device may configure the N CSI-RS resources within a slot using the first time-frequency pattern configured according to the sub-band size, the density of each CSI-RS resource, and the number of ports of each CSI-RS resource.As an example, the network device can configure N CSI-RS resources with identical CSI-RS resource densities within a slot according to the sub-band size and the number of ports for each CSI-RS resource. Alternatively, the network device can configure N CSI-RS resources with different CSI-RS resource densities within a slot according to the sub-band size and the number of ports for each CSI-RS resource. In one possible implementation, when the N... Petition 870250120923, dated 12 / 29 / 2025, page 32 / 222 / 89 CSI-RS resources are configured within a slot, the N CSI-RS resources can be configured with densities lower than 0.5 RE / RB / port, for example, the densities can be 0.25 RE / RB / port.

[00107] Optionally, in one embodiment of the present invention, the present invention defines the method for configuring the N CSI-RS resources within a slot as follows: Method 1-2, where the N configured CSI-RS resources have identical densities, which are 0.5 RE / RB / port, and the N CSI-RS resources can be configured according to a PRB resource index. As an example, a first CSI-RS resource and a second CSI-RS resource are configured according to the PRB resource index. For example, the first CSI-RS resource is configured in an odd position of the PRB resource index, and the second CSI-RS resource is configured in an even position of the PRB resource index. A number of CSI-RS resources included in the first resource of CSI-RS is defined as either the first CSI-RS feature or the last CSI-RS feature. The number of CSI-RS features included in the second CSI-RS feature is N-.

[00108] In one implementation, the network device can determine a configured sub-band size for the terminal; the network device determines a density for each CSI-RS resource configured for the terminal, where the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port; the network device determines a number of PRBs configured for the terminal; and the network device configures the N CSI-RS resources within a slot using the first time-frequency pattern configured according to the PRB resource index, the sub-band size, the density of each CSI-RS resource, and the number of ports for each CSI-RS resource.

[00109] As an example, the network device can configure the Petition 870250120923, dated 12 / 29 / 2025, page 33 / 222 28 / 89 first CSI-RS resource among the N CSI-RS resources in the odd-numbered position of the PRB resource index and configure the second CSI-RS resource among the N CSI-RS resources in the even-numbered position of the PRB resource index using the first time-frequency pattern configured according to the sub-band size, the density of each CSI-RS resource, and the number of ports of each CSI-RS resource. Alternatively, as another example, the network device can configure the first CSI-RS resource among the N CSI-RS resources in the even-numbered position of the PRB resource index and configure the second CSI-RS resource among the N CSI-RS resources in the odd-numbered position of the PRB resource index using the first time-frequency pattern configured according to the sub-band size, the density of each CSI-RS resource, and the number of ports of each CSI-RS resource.The number of CSI-RS features included in the first CSI-RS feature is , and a formula for calculating is expressed as follows:. or , where is a function rounded up, [] is a function rounded down, and N is the number of CSI-RS features. The number of CSI-RS features included in the second CSI-RS feature is N- . For example, the CSI-RS features included in the first CSI-RS feature may be the first or CSI-RS features among the N CSI-RS features, and the CSI-RS features included in the second CSI-RS feature are the CSI-RS features among the N CSI-RS features, excluding the first CSI-RS feature. Alternatively, the CSI-RS features included in the first CSI-RS features may be the last or CSI-RS features among the N CSI-RS features, and the CSI-RS features included in the second CSI-RS features are the CSI-RS features among the N CSI-RS features, excluding the first CSI-RS feature.

[00110] For example, consider a limit value for the total number of Petition 870250120923, dated 12 / 29 / 2025, p. 34 / 222 29 / 89 CSI-RS resource ports out of the N CSI-RS resources within a slot is Pth = 96. Assuming that the base station (gNB) configures for the terminal a CSI-RS resource set containing N = 2 CSI-RS resources (each of which corresponds to a TRP and has 32 ports, the density of each CSI-RS resource being 0.5 RE / RB / port), it is determined that the total number of ports of the N CSI-RS resources is ,—. According to the definition (such as definition 1 shown) of the CSI-RS resource configuration conditions, the network device can configure two CSI-RS resources within a slot. As shown in Figure 4, the network device can use Method 1-2 to configure the two CSI-RS resources within one slot, such as configuring the first CSI-RS resource in an even-numbered RB index position and configuring the second CSI-RS resource in an odd-numbered RB index position.

[00111] By implementing this embodiment of the present invention, when the network device determines that the total number of ports of the N CSI-RS resources is less than or equal to the first limit value, and / or the number of CSI-RS resources is less than or equal to the second limit value, the N CSI-RS resources can be configured within a slot. By rationally configuring all CSI-RS resources, the impact on system performance can be reduced.

[00112] It is necessary to note that, in the embodiments of the present invention, in the case of determination based on Definition 2 set forth, that the N CSI-RS resources can be configured within a slot, the network device can adopt the method to configure the N CSI-RS resources within a slot, to configure the N CSI-RS resources for the terminal. Regarding Figure 5, it is a flowchart of another method for configuring CSI-RS resources according to an embodiment of the present invention. It is necessary to note that the method can be performed by a network device. As shown in Figure 5, the Petition 870250120923, dated 12 / 29 / 2025, page 35 / 222 / 89, the method may include, but is not limited to, the following steps in 501-505.

[00113] In 501, the total number of ports of the N CSI-RS resources is determined according to the number of ports of each CSI-RS resource among the N CSI-RS resources and the number of CSI-RS resources configured for the terminal.

[00114] In the embodiment of the present invention, each CSI-RS resource corresponds to a TRP for CJT, and N is an integer greater than 1.

[00115] In the embodiment of the present invention, step 501 can be implemented in any of the ways in the embodiments of the present invention, which is not limited to the embodiment of the present invention and will not be repeated again.

[00116] In 502, a density of each CSI-RS resource configured for the terminal is determined.

[00117] In an implementation, when the network device configures N CSI-RS resources for the endpoint, there is a need to configure N densities of CSI-RS resources for the endpoint. The network device can determine the density of each CSI-RS resource configured for the endpoint. The densities of the N CSI-RS resources can be identical.

[00118] In 503, it is determined that the total number of ports of the N CSI-RS resources is greater than a first limit value, the density of each CSI-RS resource is identical, and the density is 0.5 RE / RB / port.

[00119] In the embodiment of the present invention, the first limit value is a limit value of a total number of CSI-RS resource ports out of the N CSI-RS resources in a single slot.

[00120] In one possible implementation, the network device determines the configured time-frequency pattern of the N CSIRS resources based on the total Ptot number of ports of the N CSIRS resources, the first threshold value, and the density of each CSIRS resource. As a Petition 870250120923, dated 12 / 29 / 2025, page 36 / 222 / 89 example, the network device compares the total Ptot number of ports of the N CSI-RS resources with the first threshold value, and determines if the densities of the CSI-RS resources are identical and if the densities are 0.5 RE / RB / port. If the total Ptot number of ports of the N CSI-RS resources is greater than the first threshold value, and the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port (that is, the constraint condition in Definition 2 stated “when , assuming that the densities of the CSI-RS resources are identical and the densities are 0.5 RE / RB / port” is satisfied), then the network device can perform step 504, that is, determine that the configured time-frequency pattern of the N CSI-RS resources is the first configured time-frequency pattern. That is, the N CSI-RS resources can be configured within a slot.

[00121] In 504, it is determined that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern.

[00122] In the embodiment of the present invention, step 504 can be implemented in any of the ways in the embodiments of the present invention, which is not limited to the embodiment of the present invention and will not be repeated again.

[00123] In 505, the N CSI-RS resources are configured for the terminal according to the configured time-frequency pattern.

[00124] Optionally, in one embodiment of the present invention, the network device may determine a configured sub-band size for the terminal; the network device may configure the N CSIRS resources within a slot using the first time-frequency pattern configured according to the sub-band size, the density of each CSIRS resource, and the number of ports of each CSIRS resource. As an example, the network device may configure the N CSIRS resources with identical CSIRS resource densities within a slot according to Petition 870250120923, dated 12 / 29 / 2025, page 37 / 222 32 / 89 with the sub-band size and number of ports for each CSIRS resource, where the densities of the N CSI-RS resources are 0.5 RE / RB / port. Optionally, CSI-RS resources with lower densities can be configured within a slot, for example, the densities can be 0.25 RE / RB / port.

[00125] Optionally, in one embodiment of the present invention, the network device may determine a configured sub-band size for the terminal; the network device may determine a number of PRB resources configured for the terminal; the network device may configure the N CSI-RS resources within a slot using the first time-frequency pattern configured according to a PRB resource index, the sub-band size, the density of each CSI-RS resource, and the number of ports of each CSI-RS resource.

[00126] As an example, the network device can configure a first CSI-RS resource from among the N CSI-RS resources in an odd position of the PRB resource index and configure a second CSI-RS resource from among the N CSI-RS resources in an even position of the PRB resource index using the first time-frequency pattern configured according to the sub-band size, the density of each CSI-RS resource, and the number of ports of each CSI-RS resource. Alternatively, as another example, the network device can configure a first CSI-RS resource from among the N CSI-RS resources in an even position of the PRB resource index and configure a second CSI-RS resource from among the N CSI-RS resources in an odd position of the PRB resource index using the first time-frequency pattern configured according to the sub-band size, the density of each CSI-RS resource, and the number of ports of each CSI-RS resource.The number of CSI-RS features included in the first CSI-RS feature is , and a formula for calculating is expressed as follows: or , where is a function. Petition 870250120923, dated 12 / 29 / 2025, p. 38 / 222 33 / 89 rounded up, [] is a function rounded down, and N is the number of CSI-RS features. The number of CSI-RS features included in the second CSI-RS feature is N- . For example, the CSI-RS features included in the first CSI-RS feature could be the first or CSI-RS features among the N CSI-RS features, and the CSI-RS features included in the second CSI-RS feature are the CSI-RS features among the N CSI-RS features, excluding the first CSI-RS feature. Alternatively, the CSI-RS features included in the first features of CSI-RS resources can be the last or most recent CSI-RS resources among the N CSI-RS resources, and the CSI-RS resources included in the second CSI-RS resources are the CSI-RS resources among the N CSI-RS resources, excluding the first CSI-RS resource.

[00127] For example, consider that a limit value for the total number of CSI-RS resource ports of the N CSI-RS resources within a slot is Pth = 48. Assuming that the base station configures for the terminal a set of CSI-RS resources containing N = 2 CSI-RS resources (each of which corresponds to a TRP and has 32 ports, the density of each CSI-RS resource being 0.5 RE / RB / port), it is determined that the total number of ports of the N CSI-RS resources is . Although the density of each CSI-RS resource is low. According to the definition (such as the definition shown in 2) of the CSI-RS resource configuration conditions, the two CSI-RS resources can be configured within a slot.As shown in Figure 4, the network device can use Method 1-2 to configure the two CSI-RS resources within one slot, such as configuring the first CSI-RS resource in an even-numbered RB index position and configuring the second CSI-RS resource in an odd-numbered RB index position.

[00128] By implementing this embodiment of the present invention, Petition 870250120923, dated 12 / 29 / 2025, page 39 / 222 / 89 when the network device determines that the total number of ports of the N CSI-RS resources is greater than the first limit value, and the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port, the N CSI-RS resources can still be configured within a slot. By rationally configuring all CSI-RS resources, the impact on system performance can be reduced.

[00129] It should be noted that, in embodiments of the present invention, if it is determined based on Definition 2 set forth that N CSI-RS resources can be configured within a slot, the network device may adopt the method for configuring N CSI-RS resources within a slot, to configure N CSI-RS resources for the terminal. Regarding Figure 6, it is a flowchart of another method for configuring CSI-RS resources according to an embodiment of the present invention. It should be noted that the method can be performed by a network device. As shown in Figure 6, the method may include, but is not limited to, the following steps in 601-604.

[00130] In 601, a density of each CSI-RS resource among the N CSI-RS resources and the number of CSI-RS resources configured for the terminal are determined.

[00131] In the embodiment of the present invention, each CSI-RS resource corresponds to a TRP for CJT, and N is an integer greater than 1.

[00132] In the embodiment of the present invention, step 601 can be implemented in any of the ways in the embodiments of the present invention, which is not limited to the embodiment of the present invention and will not be repeated again.

[00133] In 602, it is determined that the number of CSI-RS resources is greater than a second threshold value, the density of each CSI-RS resource is identical, and the density is 0.5 RE / RB / port.

[00134] In the embodiment of the present invention, the second limit value is Petition 870250120923, dated 12 / 29 / 2025, p. 40 / 222 / 89 a limit value of a total number of CSI-RS resources out of the N CSI-RS resources in a single slot (or a slot).

[00135] In one possible implementation, the network device determines the density of each CSI-RS resource configured for the endpoint, and determines the configured time-frequency pattern of the N CSI-RS resources according to the number N (or Ntrp) of CSI-RS resources, the second threshold value, and the density of each CSI-RS resource. As an example, the network device compares the number N (or Ntrp) of CSI-RS resources with the second threshold value, and determines if the densities of the CSI-RS resources are identical and if the densities are 0.5 RE / RB / port. If the number N (or Ntrp) of CSI-RS resources is greater than the second threshold value, and the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port (that is, the constraint condition in Definition 2 stated “when , assuming that the densities of the NTRp resources of If the CSI-RS resources are identical and the densities are 0.5 RE / RB / port (if the condition is met), then the network device can execute step 603, that is, determine that the configured time-frequency pattern of the N CSI-RS resources is the first configured time-frequency pattern. In other words, the N CSI-RS resources can be configured within a slot.

[00136] In 603, it is determined that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern.

[00137] In the embodiment of the present invention, step 603 can be implemented in any of the ways in the embodiments of the present invention, which is not limited to the embodiment of the present invention and will not be repeated again.

[00138] In 604, the N CSI-RS resources are configured for the terminal according to the configured time-frequency pattern.

[00139] In the embodiment of the present invention, step 604 can be Petition 870250120923, dated 12 / 29 / 2025, p. 41 / 222 / 89 implemented in any of the ways in the embodiments of the present invention, which is not limited to the embodiment of the present invention and will not be repeated again.

[00140] By implementing this embodiment of the present invention, when the network device determines that the number of CSI-RS resources is greater than the second limit value and the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port, the N CSI-RS resources can still be configured within a slot. By rationally configuring all CSI-RS resources, the impact on system performance can be reduced.

[00141] It should be noted that, in embodiments of the present invention, if it is determined based on Definition 2 set forth above that N CSI-RS resources can be configured within a slot, the network device may adopt the method for configuring N CSI-RS resources within a slot, to configure N CSI-RS resources for the terminal. Regarding Figure 7, it is a flowchart of another method for configuring CSI-RS resources according to an embodiment of the present invention. It should be noted that the method can be performed by a network device. As shown in Figure 7, the method may include, but is not limited to, the following steps in 701-706.

[00142] In 701, the total number of ports of the N CSI-RS resources is determined according to the number of ports of each CSI-RS resource among the N CSI-RS resources and the number of CSI-RS resources configured for the terminal.

[00143] In the embodiment of the present invention, each CSI-RS resource corresponds to a TRP for CJT, and N is an integer greater than 1.

[00144] In the embodiment of the present invention, step 701 can be implemented in any of the ways in the embodiments of the present invention, which is not limited to the embodiment of the present invention and will not be Petition 870250120923, dated 12 / 29 / 2025, p. 42 / 222 / 89 repeated again.

[00145] In 702, a density of each CSI-RS resource configured for the terminal is determined.

[00146] In the embodiment of the present invention, step 702 can be implemented in any of the ways in the embodiments of the present invention, which is not limited to the embodiment of the present invention and will not be repeated again.

[00147] In 703, an R codebook parameter configured by the network device for the terminal is determined.

[00148] In one implementation, the network device can configure CSI reporting features for the endpoint, and the configured CSI reporting features can include the R codebook parameter. The network device can determine the R codebook parameter based on the CSI reporting features configured for the endpoint.

[00149] In 704, it is determined that the total number of ports of the N CSI-RS resources is greater than a first limit value, the codebook parameter R is 1, the density of each CSI-RS resource is identical, and the density is 0.5 RE / RB / port.

[00150] In one possible implementation, the network device determines the total Ptot number of ports of the N CSI-RS resources based on the number of CSI-RS resources and the number of ports of each CSI-RS resource. The network device determines the density of each CSI-RS resource configured for the terminal, determines the codebook parameter R configured for the terminal, and determines the time-frequency pattern configured for the N CSI-RS resources based on the total Ptot number of ports of the N CSI-RS resources, the first threshold value, the codebook parameter R, and the density of each CSI-RS resource. As an example, the network device compares the total Ptot number of ports of the N CSI-RS resources with the first threshold value, determines if the Petition 870250120923, dated 12 / 29 / 2025, page 43 / 222 / 89, codebook parameter R is 1, and determines whether the densities of the N CSI-RS resources are identical. If it is determined that the total number of Ptot ports of the N CSI-RS resources is greater than the first threshold value, the codebook parameter R is 1, the density of each CSI-RS resource is identical, and the density is 0.5 RE / RB / port (that is, the constraint condition of Definition 3 is satisfied), then the network device can perform step 705, that is, determine that the configured time-frequency pattern of the N CSI-RS resources is the first configured time-frequency pattern. That is, the N CSI-RS resources can be configured within a slot.

[00151] In 705, it is determined that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern.

[00152] In the embodiment of the present invention, step 705 can be implemented in any of the ways in the embodiments of the present invention, which is not limited to the embodiment of the present invention and will not be repeated again.

[00153] In 706, the N CSI-RS resources are configured for the terminal according to the configured time-frequency pattern. The N CSI-RS resources are used by the network device to obtain N pieces of downlink channel information from the TRP to the terminal.

[00154] In the embodiment of the present invention, step 706 can be implemented in any of the ways in the embodiments of the present invention, which is not limited to the embodiment of the present invention and will not be repeated again.

[00155] By implementing this embodiment of the present invention, when the network device determines that the total number of ports of the N CSI-RS resources is greater than the first limit value, the codebook parameter R is 1, and the density of each CSI-RS resource is identical and the Petition 870250120923, dated 12 / 29 / 2025, page 44 / 222 / 89 density is 0.5 RE / RB / port, the N CSI-RS resources can still be configured within a slot. By rationally configuring all CSI-RS resources, the impact on system performance can be reduced.

[00156] It should be noted that if the constraint conditions of the definitions set forth (such as Definition 1, Definition 2 or Definition 3) are not met, the network device can configure the N CSIRS resources within the plurality of slots, such as configuring the N CSIRS resources in two adjacent slots. Regarding Figure 8, it is a flowchart of another method for configuring CSI-RS resources according to an embodiment of the present invention. It should be noted that the method can be performed by a network device. As shown in Figure 8, the method may include, but is not limited to, the following steps in 801-804.

[00157] In 801, the total number of ports of the N CSI-RS resources is determined according to the number of ports of each CSI-RS resource among the N CSI-RS resources and the number of CSI-RS resources configured for the terminal.

[00158] In the embodiment of the present invention, each CSI-RS resource corresponds to a TRP for CJT, and N is an integer greater than 1.

[00159] In the embodiment of the present invention, step 801 can be implemented in any of the ways in the embodiments of the present invention, which is not limited to the embodiment of the present invention and will not be repeated again.

[00160] In 802, it is determined that the total number of ports of the N CSI-RS resources is greater than a first limit value and the number of CSI-RS resources is greater than a second limit value.

[00161] In one embodiment of the present invention, the first limit value is a limit value of the total number of CSI-RS resource ports of the N CSI-RS resources in a single slot (or slot), and the second limit value is a limit value of the total number of CSI-RS resources of the N Petition 870250120923, dated 12 / 29 / 2025, page 45 / 222 / 89 CSI-RS resources in a single slot (or one slot).

[00162] In one implementation, the network device determines the configured time-frequency pattern of the N CSI-RS resources based on the total number of ports (Ptot) of the N CSI-RS resources, the number (N) of CSI-RS resources (Ntrp), the first threshold value, and the second threshold value. As an example, the network device compares the total number of ports (Ptot) of the N CSI-RS resources with the first threshold value, and compares the number of CSI-RS resources (N) with the second threshold value. If it is determined that the total number of ports of the N CSI-RS resources is greater than the first threshold value and the number of CSI-RS resources is greater than the second threshold value, the network device performs step 803, that is, it determines that the configured time-frequency pattern of the N CSI-RS resources is the second configured time-frequency pattern.That is, the N CSI-RS resources are configured within a plurality of slots, such as configuring the N CSI-RS resources in two adjacent slots.

[00163] In 803, it is determined that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

[00164] In the embodiment of the present invention, the second configured time-frequency pattern indicates the mapping of time-frequency domain resources of the N CSI-RS resources within the plurality of slots.

[00165] That is, if the network device determines that the total number of ports of the N CSI-RS resources is greater than the first limit value and the number of CSI-RS resources is greater than the second limit value, the network device can determine that the configured time-frequency pattern of the N CSI-RS resources is the second configured time-frequency pattern. That is, the N CSI-RS resources can be configured within the plurality of slots.

[00166] In 804, the N CSI-RS resources are configured for the Petition 870250120923, dated 12 / 29 / 2025, page 46 / 222 / 89 terminal according to the configured time-frequency pattern. The N CSI-RS resources are used by the network device to obtain N pieces of downlink channel information from the TRP to the terminal.

[00167] In one embodiment of the present invention, when the network device determines that the total number of ports of the N CSI-RS resources is greater than the first limit value and the number of CSI-RS resources is greater than the second limit value, the second configured time-frequency pattern is then used to configure the N CSI-RS resources within the plurality of slots, to configure the N CSI-RS resources for the terminal. That is, the network device can configure the N CSI-RS resources within the plurality of slots, to configure the N CSI-RS resources for the terminal. In one implementation, the network device determines the sub-band size configured for the terminal, and configures the N CSI-RS resources within the plurality of slots using the second configured time-frequency pattern according to the sub-band size, the density of each CSI-RS resource, and the number of ports of each CSI-RS resource.For example, the network device may adopt the method of configuring N CSI-RS resources in two adjacent slots, to configure N CSI-RS resources for the terminal, wherein the time interval between the two slots is no greater than X slots, where X is a positive integer.

[00168] Optionally, in one embodiment of the present invention, a method for configuring the N CSI-RS resources in two slots is defined as follows: Method 2-1, configure a first CSI-RS resource in a first slot and configure a second CSI-RS resource in a second slot. The number of CSI-RS resources included in the first CSI-RS resource is N1, and the number of CSI-RS resources included in the second CSI-RS resource is N-N1.

[00169] In one implementation, the network device can determine Petition 870250120923, dated 12 / 29 / 2025, page 47 / 222 42 / 89 the sub-band size configured for the terminal; the network device determines the density of each CSI-RS resource configured for the terminal. The network device configures the N CSI-RS resources within the plurality of slots using the second time-frequency pattern configured according to the sub-band size, the density of each CSI-RS resource, and the number of ports of each CSI-RS resource. As an example, the network device may configure the N CSI-RS resources in two adjacent slots. For example, the network device may configure the first CSI-RS resource among the N CSI-RS resources within the first slot, and configure the second CSI-RS resource among the N CSI-RS resources within the second slot, where a time interval between the first slot and the second slot is less than or equal to X slots, where X is a positive integer.

[00170] In one possible implementation, the number of CSI-RS resources included in the first CSI-RS resource is , and the formula for calculating is expressed as follows: , where is a rounded-up function, [] is a rounded-down function, and N is the number of CSI-RS resources; the number of CSI-RS resources included in the second CSI-RS resource is N

[00171] In one possible implementation, the density of the first CSI-RS resource is identical to the density of the second CSI-RS resource; or the density of the first CSI-RS resource is different from the density of the second CSI-RS resource. That is, in the case where the N CSI-RS resources are configured in two adjacent slots, the density of the first CSI-RS resources may be identical to or different from the density of the second CSI-RS resource configured in the two slots.

[00172] In one possible implementation, a time-frequency resource position of the first CSI-RS resource is identical to a position of Petition 870250120923, dated 12 / 29 / 2025, page 48 / 222 43 / 89 time-frequency resource of the second CSI-RS resource; or a time-frequency resource position of the first CSI-RS resource is different from a time-frequency resource position of the second CSI-RS resource; or time-frequency resource positions of a CSI-RS resource portion in the first CSI-RS resource are identical to time-frequency resource positions of a CSI-RS resource portion in the second CSI-RS resource; or time-frequency resource positions of a CSI-RS resource portion in the first CSI-RS resource are different from time-frequency resource positions of a CSI-RS resource portion in the second CSI-RS resource.

[00173] That is, in the case where N CSI-RS resources are configured in two adjacent slots, the time-frequency resource positions of the first CSI-RS resource and the second CSI-RS resource configured in the two slots may be identical or different. Alternatively, the time-frequency resource positions of some of the CSI-RS resources in the first CSI-RS resource and some of the CSI-RS resources in the second CSI-RS resource configured in the two slots may be identical or different.

[00174] For example, consider that a limit value for the total number of CSI-RS resource ports of the N CSI-RS resources within a slot is Pth = 48. Assuming that gNB configures for the terminal a set of CSI-RS resources containing N = 4 CSI-RS resources (each of which corresponds to a TRP and has 32 ports, the density of each CSI-RS resource being 1 RE / RB / port), it is determined that the total number of ports of the N CSI-RS resources is by virtue of , and the densities of the CSI-RS resources are greater than 0.5 RE / RB / port. According to the definition of the CSI-RS resource configuration conditions, the 4 CSI-RS resources need to be configured in two slots. As shown in Figure 9, the device of Petition 870250120923, dated 12 / 29 / 2025, page 49 / 222 / 89 network may adopt the 2-1 Method described to configure the two CSI-RS resources in two slots, such as configuring the first and second CSI-RS resources in the T-th slot, and configuring the third and fourth CSI-RS resources in the (T+1)-th slot.

[00175] Optionally, in one embodiment of the present invention, a method for configuring the N CSI-RS resources within a slot is defined as follows: Method 2-2, when CSI-RS resources within a slot of two adjacent slots are greater than or equal to two CSI-RS resources, the “Method 1-1” or the “Method 1-2” disclosed may be adopted to configure these CSI-RS resources in the correct slot, wherein these CSI-RS resources refer to the CSI-RS resources that need to be configured in the correct slot.

[00176] In an implementation, when CSI-RS resources within the first slot are greater than or equal to two CSI-RS resources (that is, the number of CSI-RS resources included in the first CSI-RS resource that need to be configured within the first slot is greater than or equal to 2), the first CSI-RS resource can be configured within the first slot using the exposed 1-1 Method. As an example, the network device determines that the number of CSI-RS resources included in the first CSI-RS resource is greater than or equal to 2, then the network device can configure the CSI-RS resources included in the first CSI-RS resource within the first slot, where the densities of the CSI-RS resources included in the first CSI-RS resource are identical or different. Optionally, the first CSI-RS resource is configured within the first slot, and a CSI-RS resource with a density less than 0.5 RE / RB / port can be configured.

[00177] In another implementation, when CSI-RS resources within the first slot are greater than or equal to two CSI-RS resources (that is, the number of CSI-RS resources included in the first resource of Petition 870250120923, dated 12 / 29 / 2025, page 50 / 222 / 89 If the CSI-RS that needs to be configured within the first slot is greater than or equal to 2), the first CSI-RS resource can be configured within the first slot using Method 1-2 as described. As an example, when the network device determines that the number of CSI-RS resources included in the first CSI-RS resource is greater than or equal to 2, then the network device can determine the densities of the CSI-RS resources included in the first CSI-RS resource configured for the endpoint, where the densities of the CSI-RS resources included in the first CSI-RS resource are identical, and the densities are 0.5 RE / RB / port. The network device can configure the first CSI-RS resource within the first slot according to the PRB resource index and the densities of the CSI-RS resources included in the first CSI-RS resource.

[00178] For example, the network device can configure some of the CSI-RS resources in the first CSI-RS resource in odd-numbered positions of the PRB resource index, and configure the remaining CSI-RS resources in the first CSI-RS resource in even-numbered positions of the PRB resource index. A number of CSI-RS resources included in this part of the CSI-RS resources is , such as the first CSI-RS resources or the last CSI-RS resources, a number of CSI-RS resources included in the remaining CSI-RS resources is - , where is the number of CSI-RS resources included in the first CSI-RS resource.

[00179] In one implementation, when CSI-RS resources within the second slot are greater than or equal to two CSI-RS resources (that is, the number of CSI-RS resources included in the second CSI-RS resource that needs to be configured within the second slot is greater than or equal to 2), the second CSI-RS resource can be configured within the second slot using the exposed 1-1 Method. As an example, the network device determines that the number of CSI-RS resources included in the second CSI-RS resource is greater than or equal to 2, then the network device can Petition 870250120923, dated 12 / 29 / 2025, page 51 / 222 46 / 89 Configure the CSI-RS resources included in the second CSI-RS resource within the second slot, where the densities of the CSI-RS resources included in the second CSI-RS resource are identical or different. Optionally, the second CSI-RS resource is configured within the second slot, and a CSI-RS resource with a density less than 0.5 RE / RB / port can be configured.

[00180] In another implementation, when the CSI-RS resources within the second slot are greater than or equal to two CSI-RS resources (that is, the number of CSI-RS resources included in the second CSI-RS resource that needs to be configured within the second slot is greater than or equal to 2), the second CSI-RS resource can be configured within the second slot using Method 1-2 as described. As an example, when the network device determines that the number of CSI-RS resources included in the second CSI-RS resource is greater than or equal to 2, then the network device determines the densities of the CSI-RS resources included in the second CSI-RS resource configured for the endpoint, where the densities of the CSI-RS resources included in the second CSI-RS resource are identical, and the densities are 0.5 RE / RB / port.The network device can configure the second CSI-RS resource within the second slot according to the PRB resource index and the densities of the CSI-RS resources included in the second CSI-RS resource.

[00181] For example, the network device may configure some of the CSI-RS resources in the second CSI-RS resource in odd-numbered positions of the PRB resource index, and configure the remaining CSI-RS resources in the second CSI-RS resource in even-numbered positions of the PRB resource index. The number of CSI-RS resources included in this portion of the CSI-RS resources is , such as the first CSI-RS resources or the last CSI-RS resources, and the number of CSI-RS resources included in the remaining CSI-RS resources is , where is the number of Petition 870250120923, dated 12 / 29 / 2025, page 52 / 222 47 / 89 CSI-RS resources are included in the first CSI-RS resource, and is the number of CSI-RS resources included in the second CSI-RS resource.

[00182] By implementing this embodiment of the present invention, when the network device determines that the total number of ports of the N CSI-RS resources is greater than the first limit value and the number of CSI-RS resources is greater than the second limit value, the N CSI-RS resources can be configured within the plurality of slots. By rationally configuring all CSI-RS resources, the impact on system performance can be reduced.

[00183] With regard to Figure 10, it is a flowchart of another method for configuring CSI-RS resources according to an embodiment of the present invention. It should be noted that the method can be performed by a network device. As shown in Figure 10, the method may include, but is not limited to, the following steps in 1001-1005.

[00184] In 1001, a total number of ports of the N CSIRS resources is determined according to the number of ports of each CSIRS resource among the N CSI-RS resources and the number of CSI-RS resources configured for the terminal.

[00185] In the embodiment of the present invention, each CSI-RS resource corresponds to a TRP for CJT, and N is an integer greater than 1.

[00186] In the embodiment of the present invention, step 1001 can be implemented in any of the ways in the embodiments of the present invention, which is not limited to the embodiment of the present invention and will not be repeated again.

[00187] In 1002, a density of each CSI-RS resource configured for the terminal is determined.

[00188] In the embodiment of the present invention, step 1002 can be implemented in any of the ways in the embodiments of the present invention, which is not limited to the embodiment of the present invention and will not be Petition 870250120923, dated 12 / 29 / 2025, p. 53 / 222 / 89 repeated again.

[00189] In 1003, it is determined that the total number of ports of the N CSI-RS resources is greater than the first limit value and the densities of the N CSI-RS resources are different, or that the total number of ports of the N CSI-RS resources is greater than the first limit value and the densities of the N CSI-RS resources are identical, but greater than 0.5 RE / RB / port.

[00190] In the embodiment of the present invention, the first limit value is a limit value of a total number of CSI-RS resource ports out of the N CSI-RS resources in a single slot (or a slot).

[00191] In one possible implementation, the network device determines the configured time-frequency pattern of the N CSIRS resources based on the total Ptot number of ports of the N CSIRS resources, the first threshold value, and the density of each CSIRS resource. As an example, the network device compares the total Ptot number of ports of the N CSIRS resources with the first threshold value and determines if the densities of the N CSIRS resources are identical. If the total number of ports of the N CSIRS resources is greater than the first threshold value and the densities of the N CSIRS resources are different, the network device can execute step 1004.Alternatively, if the total number of ports of the N CSI-RS resources is greater than the first threshold value, the densities of the N CSI-RS resources are identical, and the densities are determined to be greater than 0.5 RE / RB / port, the network device can execute step 1004, that is, determine that the configured time-frequency pattern of the N CSI-RS resources is the second configured time-frequency pattern. In other words, the N CSI-RS resources can be configured within a plurality of slots, such as configuring the N CSI-RS resources in two adjacent slots.

[00192] In 1004, it is determined that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern. Petition 870250120923, dated 12 / 29 / 2025, page 54 / 222 / 89

[00193] In the embodiment of the present invention, the second configured time-frequency pattern indicates the time-frequency domain resource mapping of the N CSI-RS resources within the plurality of slots.

[00194] That is, when the network device determines that the total number of ports of the N CSI-RS resources is greater than the first limit value and the densities of the N CSI-RS resources are different, or that the total number of ports of the N CSI-RS resources is greater than the first limit value and the densities of the N CSI-RS resources are identical, but the densities are greater than 0.5 RE / RB / port, then the network device can determine that the configured time-frequency pattern of the N CSI-RS resources is the second configured time-frequency pattern. That is, the N CSI-RS resources can be configured within the plurality of slots.

[00195] In 1005, the N CSI-RS resources are configured for the terminal according to the configured time-frequency pattern. The N CSI-RS resources are used by the network device to obtain N pieces of downlink channel information from the TRP to the terminal.

[00196] In the embodiment of the present invention, step 1005 can be implemented in any of the ways of step 804 in the embodiment of the present invention, which is not limited in the embodiment of the present invention and will not be repeated again.

[00197] By implementing this embodiment of the present invention, when the network device determines that the total number of ports of the N CSI-RS resources is greater than the first limit value and the densities of the N CSI-RS resources are different, or that the total number of ports of the N CSI-RS resources is greater than the first limit value and the densities of the N CSI-RS resources are identical but greater than 0.5 RE / RB / port, the N CSI-RS resources can be configured within the plurality of slots. By rationally configuring all CSI-RS resources, the impact on system performance can be reduced. Petition 870250120923, dated 12 / 29 / 2025, p. 55 / 222 / 89

[00198] With regard to Figure 11, it is a flowchart of another method for configuring CSI-RS resources according to an embodiment of the present invention. It should be noted that the method can be performed by a network device. As shown in Figure 11, the method may include, but is not limited to, the following steps in 1101-1104.

[00199] In 1101, a density of each CSI-RS resource among the N CSI-RS resources and the number of ports of each CSI-RS resource configured for the terminal is determined.

[00200] In the embodiment of the present invention, each CSI-RS resource corresponds to a TRP for CJT, and N is an integer greater than 1.

[00201] In the embodiment of the present invention, step 1101 can be implemented in any of the ways in the embodiments of the present invention, which is not limited to the embodiment of the present invention and will not be repeated again.

[00202] In 1102, it is determined that the number of CSI-RS resources is greater than a second threshold value and the densities of the N CSI-RS resources are different, or that the number of CSI-RS resources is greater than a second threshold value and the densities of the N CSI-RS resources are identical, but greater than 0.5 RE / RB / port.

[00203] In the embodiment of the present invention, the second limit value is a limit value of a total number of CSI-RS resources out of the N CSI-RS resources in a single slot (or a slot).

[00204] In one possible implementation, the network device determines the configured time-frequency pattern of the N CSIRS resources based on the number N (or Ntrp) of CSI-RS resources, the second threshold value, and the density of each CSI-RS resource. As an example, the network device compares the number N (or Ntrp) of CSI-RS resources with the second threshold value and determines if the density of each CSI-RS resource is identical. If the number of CSI-RS resources is greater than the Petition 870250120923, dated 12 / 29 / 2025, page 56 / 222 / 89, according to the second limit value and the densities of the N CSI-RS resources are different, or if the number of CSI-RS resources is greater than the second limit value and the densities of the N CSI-RS resources are identical but greater than 0.5 RE / RB / port, the network device may execute step 1103, that is, determine that the configured time-frequency pattern of the N CSI-RS resources is the second configured time-frequency pattern. That is, the N CSI-RS resources may be configured within a plurality of slots, such as configuring the N CSI-RS resources in two adjacent slots.

[00205] In 1103, it is determined that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

[00206] Optionally, the network device can determine that the configured time-frequency pattern of the N CSI-RS resources is the second configured time-frequency pattern. That is, the N CSI-RS resources can be configured within the plurality of slots.

[00207] In 1104, the N CSI-RS resources are configured for the terminal according to the configured time-frequency pattern. The N CSI-RS resources are used by the network device to obtain N pieces of downlink channel information from the TRP to the terminal.

[00208] In the embodiment of the present invention, step 1104 can be implemented in any of the ways of step 804 in the embodiment of the present invention, which is not limited in the embodiment of the present invention and will not be repeated again.

[00209] By implementing this embodiment of the present invention, when the network device determines that the number of CSI-RS resources is greater than the second limit value and the densities of the N CSI-RS resources are different, or that the number of CSI-RS resources is greater than the second limit value and the densities of the N CSI-RS resources are identical, Petition 870250120923, dated 12 / 29 / 2025, p. 57 / 222 / 89 but greater than 0.5 RE / RB / port, the N CSI-RS resources can be configured within the plurality of slots. By rationally configuring all CSI-RS resources, the impact on system performance can be reduced.

[00210] With regard to Figure 12, it is a flowchart of another method for configuring CSI-RS resources according to an embodiment of the present invention. It should be noted that the method can be performed by a network device. As shown in Figure 12, the method may include, but is not limited to, the following steps in 1201-1206.

[00211] In 1201, a total number of ports of the N CSIRS resources is determined according to the number of ports of each CSIRS resource among the N CSI-RS resources and the number of CSI-RS resources configured for the terminal.

[00212] In the embodiment of the present invention, each CSI-RS resource corresponds to a TRP for CJT, and N is an integer greater than 1.

[00213] In the embodiment of the present invention, step 1201 can be implemented in any of the ways in the embodiments of the present invention, which is not limited to the embodiment of the present invention and will not be repeated again.

[00214] In 1202, an R codebook parameter configured by the network device for the terminal is determined.

[00215] In the embodiment of the present invention, step 1202 can be implemented in any of the ways in the embodiments of the present invention, which is not limited to the embodiment of the present invention and will not be repeated again.

[00216] In 1203, the density of each CSI-RS resource configured for the terminal is determined.

[00217] In the embodiment of the present invention, step 1203 can be implemented in any of the ways in the embodiments of the present invention. Petition 870250120923, dated 12 / 29 / 2025, page 58 / 222 / 89 invention, which is not limited to the embodiment of the present invention and will not be repeated again.

[00218] In 1204, it is determined that the total number of ports of the N CSI-RS resources is greater than a first limit value, the codebook parameter R is 1 and the densities of the N CSI-RS resources are different, or that the total number of ports of the N CSI-RS resources is greater than a first limit value, the codebook parameter R is 1 and the densities of the N CSI-RS resources are identical, but greater than 0.5 RE / RB / port.

[00219] In one possible implementation, the network device determines the configured time-frequency pattern of the N CSIRS resources based on the total Ptot number of ports of the N CSI-RS resources, the first threshold value, the codebook parameter R, and the density of each CSI-RS resource. As an example, the network device compares the total Ptot number of ports of the N CSI-RS resources with the first threshold value, determines the value of the codebook parameter R, and determines whether the density of each CSI-RS resource is identical.If the total number of ports of the N CSI-RS resources is greater than the first threshold value, the codebook parameter R is 1, and the densities of the N CSI-RS resources are different, or if the total number of ports of the N CSI-RS resources is greater than the first threshold value, the codebook parameter R is 1, and the densities of the N CSI-RS resources are identical but greater than 0.5 RE / RB / port, the network device can execute step 1205, that is, determine that the configured time-frequency pattern of the N CSI-RS resources is the second configured time-frequency pattern. That is, the N CSI-RS resources can be configured within a plurality of slots, such as configuring the N CSI-RS resources in two adjacent slots.

[00220] In 1205, it is determined that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern. Petition 870250120923, dated 12 / 29 / 2025, page 59 / 222 / 89

[00221] In the embodiment of the present invention, step 1205 can be implemented in any of the ways in the embodiments of the present invention, which is not limited to the embodiment of the present invention and will not be repeated again.

[00222] In 1206, the N CSI-RS resources are configured for the terminal according to the configured time-frequency pattern. The N CSI-RS resources are used by the network device to obtain N pieces of downlink channel information from the TRP to the terminal.

[00223] In the embodiment of the present invention, step 1206 can be implemented in any of the ways of step 804 in the embodiment of the present invention, which is not limited in the embodiment of the present invention and will not be repeated again.

[00224] By implementing this embodiment of the present invention, when the network device determines that the total number of ports of the N CSI-RS resources is greater than the first limit value, the codebook parameter R is 1 and the densities of the N CSI-RS resources are different, or that the total number of ports of the N CSI-RS resources is greater than the first limit value, the codebook parameter R is 1 and the densities of the N CSI-RS resources are identical but greater than 0.5 RE / RB / port, the N CSI-RS resources can be configured within the plurality of slots. By rationally configuring all CSI-RS resources, the impact on system performance can be reduced.

[00225] It can be understood that the embodiment described herein describes the implementation of the method for configuring CSI-RS resources in the embodiments of the present application from the network-side device. The embodiments of the present invention further propose a method for configuring CSI-RS resources. The following describes an implementation of the method for configuring CSI-RS resources from the perspective of a terminal. With regard to Figure 13, it is a flowchart of another Petition 870250120923, dated 12 / 29 / 2025, p. 60 / 222 / 89 method for configuring CSI-RS resources according to an embodiment of the present invention. It should be noted that the method can be performed by a terminal. As shown in Figure 13, the method may include, but is not limited to, the following steps in 1301-1303.

[00226] In 1301, CSIRS resource configuration information and / or CSI reporting resource configuration information sent by a network device is received.

[00227] In this embodiment of the present invention, the CSI-RS resource configuration information includes a port number for each CSI-RS resource from among N CSI-RS resources and / or a number of CSI-RS resources, each CSI-RS resource corresponding to a TRP, and the CSI-RS resource configuration information is used by the network device to obtain N pieces of downlink channel information from the TRP to the terminal, wherein N is an integer greater than 1.

[00228] The implementation in which the network device configures the N CSI-RS resources for the endpoint may refer to the implementation of the method for configuring CSI-RS resources described from the network-side device in the modes exposed, which will not be repeated here.

[00229] In 1302, a configured time-frequency pattern of the N CSI-RS resources is determined according to the CSI-RS resource configuration information and / or the CSI reporting resource configuration information.

[00230] In one implementation, the total number of ports of the N CSI-RS resources is determined according to the number of CSI-RS resources and the number of ports of each CSI-RS resource; it is determined that the total number of ports of the N CSI-RS resources is less than or equal to a first limit value, and / or the number of CSI-RS resources is less than or equal to a second limit value, wherein the first limit value is a limit value of the total number of ports of CSI-RS resources of the N CSI resources. Petition 870250120923, dated 12 / 29 / 2025, page 61 / 222 / 89 RS in a single slot, and the second limit value is a limit value of a total number of CSI-RS resources out of the N CSI-RS resources in a single slot; it is determined that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern, where the first configured time-frequency pattern indicates the time-frequency domain resource mapping of the N CSI-RS resources within a slot.

[00231] In one implementation, the total number of ports of the N CSI-RS resources is determined according to the number of CSI-RS resources and the number of ports of each CSI-RS resource; a density of each CSI-RS resource configured by the network device for the endpoint is determined; it is determined that the total number of ports of the N CSI-RS resources is greater than a first limit value, the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port; and it is determined that the time-frequency pattern configured of the N CSI-RS resources is a first time-frequency pattern configured.

[00232] In one implementation, a density of each CSI-RS resource configured by the network device for the endpoint is determined; it is determined that the number of CSI-RS resources is greater than a second threshold value, the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port; and it is determined that the time-frequency pattern configured of the N CSI-RS resources is a first time-frequency pattern configured.

[00233] In one implementation, the total number of ports of the N CSI-RS resources is determined according to the number of CSI-RS resources and the number of ports of each CSI-RS resource; the density of each CSI-RS resource configured by the network device for the terminal is determined; a codebook parameter R configured by the network device for the terminal is determined; it is determined that the Petition 870250120923, dated 12 / 29 / 2025, page 62 / 222 / 89 the total number of ports of the N CSI-RS resources is greater than a first limit value, the codebook parameter R is 1, the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port; and it is determined that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern.

[00234] In one implementation, the total number of ports of the N CSI-RS resources is determined according to the number of CSI-RS resources and the number of ports of each CSI-RS resource; it is determined that the total number of ports of the N CSI-RS resources is greater than a first limit value and the number of CSI-RS resources is greater than a second limit value; and it is determined that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern, where the second configured time-frequency pattern indicates the time-frequency domain resource mapping of the N CSI-RS resources within a plurality of slots.

[00235] In one implementation, the total number of ports of the N CSI-RS resources is determined according to the number of CSI-RS resources and the number of ports of each CSI-RS resource; a density of each CSI-RS resource configured by the network device for the endpoint is determined; it is determined that the total number of ports of the N CSI-RS resources is greater than a first threshold value and the densities of the N CSI-RS resources are different, or that the total number of ports of the N CSI-RS resources is greater than the first threshold value and the densities of the N CSI-RS resources are identical but greater than 0.5 RE / RB / port; and it is determined that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

[00236] In one implementation, a density of each CSI-RS resource configured by the network device for the endpoint is determined; it is determined that the number of CSI-RS resources is greater than one second Petition 870250120923, dated 12 / 29 / 2025, page 63 / 222 / 89 limit value and densities of the N CSI-RS resources are different, or that the number of CSI-RS resources is greater than a second limit value and densities of the N CSI-RS resources are identical, but greater than 0.5 RE / RB / port; and it is determined that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

[00237] In one implementation, the total number of ports of the N CSI-RS resources is determined according to the number of CSI-RS resources and the number of ports of each CSI-RS resource; a codebook parameter R configured by the network device for the terminal is determined; a density of each CSI-RS resource configured by the network device for the terminal is determined; it is determined that the total number of ports of the N CSI-RS resources is greater than a first threshold value, the codebook parameter R is 1 and the densities of the N CSI-RS resources are different, or that the total number of ports of the N CSI-RS resources is greater than the first threshold value, the codebook parameter R is 1 and the densities of the N CSI-RS resources are identical but greater than 0.5 RE / RB / port; and it is determined that the time-frequency pattern configured of the N CSI-RS resources is a second time-frequency pattern configured.

[00238] It should be noted that the implementation of step 1302 in the embodiment of the present invention may adopt the implementation of determining the configured time-frequency pattern of the N CSI-RS resources of the network-side device described in the embodiments set forth, which will not be repeated here.

[00239] In 1303, resource positions of the N CSI-RS resources are determined according to the configured time-frequency pattern.

[00240] In this embodiment of the present invention, the terminal determines the configured time-frequency pattern of the N CSI-RS resources of Petition 870250120923, dated 12 / 29 / 2025, page 64 / 222 / 89, in accordance with the number N of TRPs and / or the number of ports of each CSI-RS resource among the N CSI-RS resources configured by the network device, and determines the resource positions of the N CSI-RS resources according to the configured time-frequency pattern, so that the network device obtains N pieces of downlink channel information from the TRP to the terminal through the N configured CSI-RS resources, which achieves CJT of each TRP in the plurality of TRPs. In this configuration method, all CSI-RS resources can be rationally configured, which can reduce the impact on system performance.

[00241] In the aforementioned embodiments according to the description, the methods proposed in the description are introduced from the perspectives of the network device and the terminal. In order to implement each function in the methods proposed in the embodiments described, the network device and the terminal may include hardware structures and software modules to implement the functions described in the form of hardware structures, software modules, or hardware structures plus software modules. A certain function among the functions described may be executed in a hardware structure, a software module, or a hardware structure plus a software module.

[00242] With regard to Figure 14, it is a structural diagram of a communication apparatus 140 according to an embodiment of the present invention. The communication apparatus 140 shown in Figure 14 may include a transceiver module 1401 and a processing module 1402. The transceiver module 1401 may include a transmitting module and / or a receiving module. The transmitting module is configured to implement a transmitting function, and the receiving module is configured to implement a receiving function. The transceiver module 1401 may implement a transmitting function and / or a receiving function.

[00243] The communication device 140 can be a terminal, a Petition 870250120923, dated 12 / 29 / 2025, p. 65 / 222 / 89 device in the terminal, or a device that can be used in conjunction with the terminal. Alternatively, the communication device 140 may be a network device, a device in the network device, or a device that can be used in conjunction with the network device.

[00244] When the communication device 140 is a network device, the processing module 1402 is configured to determine, according to a number of ports of each CSI-RS resource among N CSI-RS resources and / or a number of CSI-RS resources configured for a terminal, a configured time-frequency pattern of the N CSI-RS resources, where each CSI-RS resource corresponds to a TRP for CJT, and N is an integer greater than 1; the processing module 1402 also configures, according to the configured time-frequency pattern, the N CSI-RS resources for the terminal. The N CSI-RS resources are used by the network device to obtain N pieces of downlink channel information from the TRP to the terminal.

[00245] In one implementation, the 1402 processing module is specifically configured to: determine, based on the number of CSI-RS resources and the number of ports of each CSI-RS resource configured for the terminal, a total number of ports of the N CSI-RS resources; determine that the total number of ports of the N CSI-RS resources is less than or equal to a first threshold value, and / or that the number of CSI-RS resources is less than or equal to a second threshold value, wherein the first threshold value is a threshold value of a total number of ports of CSI-RS resources of the N CSI-RS resources in a single slot, and the second threshold value is a threshold value of a total number of CSI-RS resources of the N CSI-RS resources in the single slot;and determine that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern, where the first configured time-frequency pattern indicates the time-domain resource mapping of the N CSI-RS resources within a slot.

[00246] In one possible implementation, the 1402 processing module is specifically configured to: determine a configured subband size for the terminal; determine a density for each CSI-RS resource configured for the terminal, where the density of each CSI-RS resource is identical or different; and configure the N CSI-RS resources within a slot using a first time-frequency pattern configured according to the subband size, the density of each CSI-RS resource, and the number of ports for each CSI-RS resource.

[00247] In one possible implementation, the 1402 processing module is specifically configured to: determine a configured subband size for the terminal; determine a density for each CSI-RS resource configured for the terminal, where the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port; determine a number of PRBs configured for the terminal; and configure the N CSI-RS resources within a slot using the first time-frequency pattern configured according to a PRB resource index, the subband size, the density of each CSI-RS resource, and the number of ports for each CSI-RS resource.

[00248] In one implementation, the 1402 processing module is specifically configured to: determine, based on the number of CSI-RS resources and the number of ports of each CSI-RS resource configured for the terminal, a total number of ports of the N CSI-RS resources; determine a density of each CSI-RS resource configured for the terminal; determine that the total number of ports of the N CSI-RS resources is greater than a first threshold value, the density of each CSI-RS resource is identical, and the density is 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern. Petition 870250120923, dated 12 / 29 / 2025, page 67 / 222 / 89

[00249] In one implementation, the 1402 processing module is specifically configured to: determine the density of each CSI-RS resource configured for the terminal; determine that if the number of CSI-RS resources is greater than a second threshold value, the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port; and determine that the time-frequency pattern configured for the N CSI-RS resources is a first time-frequency pattern configured.

[00250] In one implementation, the 1402 processing module is specifically configured to: determine, based on the number of CSI-RS resources and the number of ports for each CSI-RS resource, a total number of ports for the N CSI-RS resources; determine a density for each CSI-RS resource configured for the terminal; determine a codebook parameter R configured by the network device for the terminal; determine that the total number of ports for the N CSI-RS resources is greater than a first threshold value, and the codebook parameter R is 1, the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port; and determine that the time-frequency pattern configured for the N CSI-RS resources is a first time-frequency pattern configured.

[00251] In one possible implementation, the 1402 processing module is specifically configured to: determine a configured subband size for the terminal; and configure the N CSI-RS resources within a slot using the first time-frequency pattern configured according to the subband size, the density of each CSIRS resource, and the number of ports of each CSI-RS resource.

[00252] In one possible implementation, the 1402 processing module is specifically configured to: determine a configured subband size for the terminal; determine a number of PRBs configured for the terminal; and configure the N CSI-RS features within Petition 870250120923, dated 12 / 29 / 2025, page 68 / 222 / 89 a slot using the first time-frequency pattern configured according to a PRB feature index, the sub-band size, the density of each CSI-RS feature, and the number of ports of each CSI-RS feature.

[00253] In one possible implementation, the 1402 processing module is specifically configured to: configure a first CSI-RS resource from among the N CSI-RS resources at an odd position in the PRB resource index, and configure a second CSI-RS resource from among the N CSI-RS resources at an even position in the PRB resource index using the first time-frequency pattern configured according to the sub-band size, the density of each CSI-RS resource, and the number of ports of each CSI-RS resource.

[00254] In one implementation, the 1402 processing module is specifically configured to: determine a total number of ports of the N CSI-RS resources based on the number of CSI-RS resources and the number of ports of each CSI-RS resource; determine that the total number of ports of the N CSI-RS resources is greater than a first threshold value and the number of CSI-RS resources is greater than a second threshold value; determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern, where the second configured time-frequency pattern indicates the time-frequency domain resource mapping of the N CSI-RS resources within a plurality of slots.

[00255] In one possible implementation, the 1402 processing module is specifically configured to: determine a configured subband size for the terminal; determine a density for each CSI-RS resource configured for the terminal; and configure the N CSI-RS resources within the plurality of slots using the second configured time-frequency pattern, according to the subband size, the density of each CSI-RS resource, and the number of ports for each CSI-RS resource. Petition 870250120923, dated 12 / 29 / 2025, page 69 / 222 64 / 89

[00256] In one possible implementation, the 1402 processing module is specifically configured to: set up a first CSI-RS resource from among the N CSI-RS resources in a first slot; and set up a second CSI-RS resource from among the N CSI-RS resources in a second slot, wherein a time interval between the first slot and the second slot is less than or equal to X slots, where X is a positive integer.

[00257] In one possible implementation, the number of CSI-RS features included in the first CSI-RS feature is , and a formula for calculating is expressed as follows: or , where is a rounded-up function, [] is a rounded-down function, and N is the number of CSI-RS features; and the number of CSI-RS features included in the second CSI-RS feature is N

[00258] Optionally, the density of the first CSI-RS feature is identical to the density of the second CSI-RS feature; or the density of the first CSI-RS feature is different from the density of the second CSI-RS feature.

[00259] Optionally, a time-frequency resource position of the first CSI-RS resource is identical to a time-frequency resource position of the second CSI-RS resource; or a time-frequency resource position of the first CSI-RS resource is different from a time-frequency resource position of the second CSI-RS resource; or time-frequency resource positions of a portion of the CSI-RS resources in the first CSI-RS resource are identical to time-frequency resource positions of a portion of the CSI-RS resources in the second CSI-RS resource; or time-frequency resource positions of a portion of the CSI-RS resources in the first CSI-RS resource are different from time-frequency resource positions of a portion of the CSI-RS resources in the second CSI-RS resource. Petition 870250120923, dated 12 / 29 / 2025, page 70 / 222 / 89

[00260] In an optional implementation, processing module 1402 is specifically configured to: determine that the number of CSI-RS resources included in the first CSI-RS resource is greater than or equal to 2; and configure the CSI-RS resources included in the first CSI-RS resource within the first slot, where the densities of the CSI-RS resources included in the first CSI-RS resource are identical or different.

[00261] In an optional implementation, processing module 1402 is specifically configured to: determine that the number of CSI-RS resources included in the first CSI-RS resource is greater than or equal to 2; determine the densities of the CSI-RS resources included in the first CSI-RS resource configured for the terminal, where the densities of the CSI-RS resources included in the first CSI-RS resource are identical, and the densities are 0.5 RE / RB / port; and configure the first CSI-RS resource within the first slot according to a PRB resource index and the densities of the CSI-RS resources included in the first CSI-RS resource.

[00262] In an optional implementation, processing module 1402 is specifically configured to: determine that the number of CSI-RS resources included in the second CSI-RS resource is greater than or equal to 2; and configure the CSI-RS resources included in the second CSI-RS resource within the second slot, where the densities of the CSI-RS resources included in the second CSI-RS resource are identical or different.

[00263] In an optional implementation, processing module 1402 is specifically configured to: determine that the number of CSI-RS resources included in the second CSI-RS resource is greater than or equal to 2; determine the densities of the CSI-RS resources included in the second CSI-RS resource configured for the endpoint, where the densities of the CSI-RS resources included in the second CSI-RS resource are identical, and the densities are 0.5 RE / RB / port; and configure the second Petition 870250120923, dated 12 / 29 / 2025, page 71 / 222 / 89, CSI-RS appeal within the second slot according to a PRB appeal index and the densities of CSI-RS appeals included in the second CSI-RS appeal.

[00264] In an optional implementation, the 1402 processing module is specifically configured to: determine a total number of ports of the N CSI-RS resources according to the number of CSI-RS resources and the number of ports of each CSI-RS resource; determine a density of each CSI-RS resource configured for the terminal; determine that the total number of ports of the N CSI-RS resources is greater than a first threshold value and the densities of the N CSI-RS resources are different, or that the total number of ports of the N CSI-RS resources is greater than a first threshold value and the densities of the N CSI-RS resources are identical but greater than 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

[00265] In one implementation, the 1402 processing module is specifically configured to: determine the density of each CSI-RS resource configured for the terminal; determine that the number of CSI-RS resources is greater than a second threshold value and the densities of the N CSI-RS resources are different, or that the number of CSI-RS resources is greater than a second threshold value and the densities of the N CSI-RS resources are identical but greater than 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

[00266] In one implementation, the 1402 processing module is specifically configured to: determine a total number of ports from the N CSI-RS resources based on the number of CSI-RS resources and the number of ports for each CSI-RS resource; determine a codebook parameter R configured by the network device for the terminal; Petition 870250120923, dated 12 / 29 / 2025, page 72 / 222 / 89, determine a density for each CSI-RS resource configured for the terminal; determine that the total number of ports of the N CSI-RS resources is greater than a first threshold value and the codebook parameter R is 1 and the densities of the N CSI-RS resources are different, or that the total number of ports of the N CSI-RS resources is greater than the first threshold value, the codebook parameter R is 1 and the densities of the N CSI-RS resources are identical but greater than 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

[00267] In one implementation, the 1402 processing module is specifically configured to: determine a configured sub-band size for the terminal; and configure the N CSI-RS resources within a plurality of slots using the second time-frequency pattern configured according to the sub-band size, the density of each CSI-RS resource, and the number of ports for each CSI-RS resource.

[00268] When communication device 140 is a terminal, transceiver module 1401 is configured to receive CSI-RS resource configuration information and / or CSI reporting resource configuration information sent by a network device, wherein the CSI-RS resource configuration information includes a port number for each CSI-RS resource and / or a number of CSI-RS resources among N CSI-RS resources, each CSI-RS resource corresponds to a TRP for CJT, and N is an integer greater than 1; processing module 1402 is configured to determine a configured time-frequency pattern of the N CSI-RS resources according to the CSI-RS resource configuration information and / or the CSI reporting resource configuration information; processing module 1402 is configured to determine resource positions of the N CSI-RS resources according to the configured time-frequency pattern. Petition 870250120923, dated 12 / 29 / 2025, p. 73 / 222 / 89

[00269] In one implementation, the 1402 processing module is specifically configured to: determine a total number of ports of N CSI-RS resources based on the number of CSI-RS resources and the number of ports of each CSI-RS resource; determine that the total number of ports of N CSI-RS resources is less than or equal to a first threshold value, and / or the number of CSI-RS resources is less than or equal to a second threshold value, wherein the first threshold value is a threshold value of a total number of ports of N CSI-RS resources in a single slot, and the second threshold value is a threshold value of a total number of N CSI-RS resources in a single slot;and determine that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern, where the first configured time-frequency pattern indicates the time-frequency domain resource mapping of the N CSI-RS resources within a slot.

[00270] In one implementation, the 1402 processing module is specifically configured to: determine a total number of ports of N CSI-RS resources based on the number of CSI-RS resources and the number of ports of each CSI-RS resource; determine a density of each CSI-RS resource configured by the network device for the endpoint; determine that the total number of ports of N CSI-RS resources is greater than a first threshold value, the density of each CSI-RS resource is identical, and the density is 0.5 RE / RB / port; and determine that the configured time-frequency pattern of N CSI-RS resources is a first configured time-frequency pattern.

[00271] In one implementation, the 1402 processing module is specifically configured to: determine the density of each CSI-RS resource configured by the network device for the endpoint; determine that if the number of CSI-RS resources is greater than a second threshold value, the density of each CSI-RS resource is identical and the density is 0.5 Petition 870250120923, dated 12 / 29 / 2025, page 74 / 222 / 89 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern.

[00272] In one implementation, the 1402 processing module is specifically configured to: determine a total number of ports of the N CSI-RS resources according to the number of CSI-RS resources and the number of ports of each CSI-RS resource; determine a density of each CSI-RS resource configured by the network device for the terminal; determine a codebook parameter R configured by the network device for the terminal; determine that the total number of ports of the N CSI-RS resources is greater than a first threshold value, the codebook parameter R is 1, and the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port; and determine that the time-frequency pattern configured of the N CSI-RS resources is a first time-frequency pattern configured.

[00273] In one implementation, the 1402 processing module is specifically configured to: determine a total number of ports of the N CSI-RS resources based on the number of CSI-RS resources and the number of ports of each CSI-RS resource; determine that the total number of ports of the N CSI-RS resources is greater than a first threshold value and the number of CSI-RS resources is greater than a second threshold value; determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern, where the second configured time-frequency pattern indicates the time-frequency domain resource mapping of the N CSI-RS resources within a plurality of slots.

[00274] In one implementation, the 1402 processing module is specifically configured to: determine a total number of ports from the N CSI-RS resources according to the number of CSI-RS resources and the Petition 870250120923, dated 12 / 29 / 2025, page 75 / 222 / 89: number of ports for each CSI-RS resource; determine the density of each CSI-RS resource configured by the network device for the terminal; determine that the total number of ports of the N CSI-RS resources is greater than a first limit value and the densities of the N CSI-RS resources are different, or that the total number of ports of the N CSI-RS resources is greater than a first limit value and the densities of the N CSI-RS resources are identical, but greater than 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

[00275] In one implementation, the 1402 processing module is specifically configured to: determine the density of each CSI-RS resource configured by the network device for the endpoint; determine that the number of CSI-RS resources is greater than a second threshold value and the densities of the N CSI-RS resources are different, or that the number of CSI-RS resources is greater than a second threshold value and the densities of the N CSI-RS resources are identical but greater than 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

[00276] In one implementation, the 1402 processing module is specifically configured to: determine the total number of ports of the N CSI-RS resources based on the number of CSI-RS resources and the number of ports of each CSI-RS resource; determine a codebook parameter R configured by the network device for the terminal; determine the density of each CSI-RS resource configured by the network device for the terminal; determine that if the total number of ports of the N CSI-RS resources is greater than a first threshold value, the codebook parameter R is 1 and the densities of the N CSI-RS resources are different, or if the total number of ports of the N CSI-RS resources is greater than a first threshold value, the codebook parameter R is 1 and Petition 870250120923, dated 12 / 29 / 2025, page 76 / 222 / 89 densities of the N CSI-RS resources are identical, but greater than 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

[00277] With regard to the apparatus in the modalities described, the specific implementation in which each module performs operations was described in detail in the modalities of the method, which will not be repeated here.

[00278] With regard to Figure 15, it is a structural diagram of another communication device 150 according to an embodiment of the present invention. The communication device 150 may be a network device, a terminal, a chip, a system-on-a-chip, or a processor that supports the network device to implement the method disclosed, or a chip, a system-on-a-chip, or a processor that supports the terminal to implement the method disclosed. The device may be used to implement the method described in the method embodiments disclosed. For details, reference may be made to the description in the method embodiments disclosed.

[00279] The communication device 150 may include one or more processors 1501. The processor 1501 may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and data communication, and the central processing unit may be used to control communication devices (such as a base station, a baseband chip, a terminal, a terminal device chip, a DU or a CU, etc.), execute computer programs and process data from the computer programs.

[00280] Optionally, the communication device 150 may additionally include one or more memories 1502, in which a program of Petition 870250120923, dated 12 / 29 / 2025, page 77 / 222 / 89 computer 1504 can be stored. When the computer program 1504 is executed by the processor 1501, the communication device 150 performs the method described in the embodiments of the method set forth. Optionally, data can also be stored in memory 1502. The communication device 150 and memory 1502 can be provided separately or integrated.

[00281] Optionally, the communication device 150 may additionally include a transceiver 1505 and an antenna 1506. The transceiver 1505 may be referred to as a transceiver unit, a transceiver machine, or a transceiver circuit, etc., and is used to implement transceiver functions. The transceiver 1505 may include a receiver and a transmitter. The receiver may be referred to as a receiving machine or a receiving circuit, etc., and is used to implement a receiving function. The transmitter may be referred to as a transmitting machine or a transmitting circuit, etc., and is used to implement the transmitting function.

[00282] Optionally, the communication device 150 may additionally include one or more interface circuits 1507. The interface circuit 1507 is used to receive instructions in code and transmit them to the processor 1501. When the instructions in code are executed by the processor 1501, the communication device 150 performs the method described in the method embodiments set forth.

[00283] When communication device 150 is the network device, processor 1501 is used to execute: steps 201 and 202 of figure 2; steps 301, 302, 303 and 304 of figure 3; steps 501, 502, 503, 504 and 505 of figure 5; steps 601, 602, 603 and 604 of figure 6; steps 701, 702, 703, 704, 705 and 706 of figure 7; steps 801, 802, 803, and 804 of figure 8; steps 1001, 1002, 1003, 1004, and 1005 of figure 10; steps 1101, 1102, 1103, and 1104 of figure 11; or steps 1201, 1202, 1203, 1204, 1205, and 1206 Petition 870250120923, dated 12 / 29 / 2025, page 78 / 222 / 89 of figure 12.

[00284] When communication device 150 is the terminal, transceiver 1505 is used to execute step 1301 of figure 13. Processor 1501 is configured to execute steps 1302 and 1303 of figure 13.

[00285] In one implementation, the 1501 processor may include a transceiver to implement the reception and transmission functions. For example, the transceiver may be a transceiver circuit, or an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit used to implement the reception and transmission functions may be separate or integrated. The aforementioned transceiver circuit, interface, or interface circuit may be used to read and write codes / data, or the aforementioned transceiver circuit, interface, or interface circuit may be used to transmit or distribute signals.

[00286] In one implementation, processor 1501 can store a computer program, and the computer program is running on processor 1501, communication device 150 can perform the method described in the method embodiments set forth. The computer program can be embedded / solidified in processor 1501. In this case, processor 1501 can be implemented by hardware.

[00287] In one implementation, the communication device 150 may include a circuit that can implement the functions of sending, receiving, or communicating in the aforementioned embodiments of the method. The processor and transceiver described in the present invention may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit (RFIC), a mixed-signal IC, an application-specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver may also be manufactured using various IC process technologies, such as Petition 870250120923, dated 12 / 29 / 2025, p. 79 / 222 / 89 a complementary metal oxide semiconductor (CMOS), an n-metal oxide semiconductor (NMOS), a positive channel metal oxide semiconductor (PMOS), a bipolar junction transistor (BJT), a bipolar CMOS (BiCMOS), silicon-germanium (SiGe), gallium arsenide (GaAs), etc.

[00288] The communication device described in the embodiments set forth may be a network device or a terminal, but the scope of the communication device described in the present invention is not limited herein, and the structure of the communication device may not be limited to Figure 15. The communication device may be a standalone device or it may be part of a larger device. For example, the communication device may be: (1) an integrated circuit IC, or a chip, or a system on a chip or a stand-alone subsystem; (2) a collection of one or more ICs. Optionally, the IC collection may also include storage components for storing data and computer programs; (3) ASIC, such as modem; (4) modules that can be embedded in other devices; (5) a receiver, a terminal device, a smart terminal device, a mobile phone, a wireless device, a portable device, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) Others, etc.

[00289] In the case where the communication device may be a chip or a system-on-a-chip, reference may be made to the chip structural diagram shown in Figure 16. The chip shown in Figure 16 includes a 1601 processor and a 1602 interface. There may be one or more Petition 870250120923, dated 12 / 29 / 2025, page 80 / 222 / 89 processors 1601, and there may be a plurality of interfaces 1602.

[00290] In the case where the chip is used to implement the network device functions in the embodiments of the present invention, the 1601 processor is configured to determine, according to a number of ports of each CSI-RS resource among N CSI-RS resources and / or a number of CSI-RS resources configured for a terminal, a configured time-frequency pattern of the N CSI-RS resources, where each CSI-RS resource corresponds to a TRP for CJT, and N is an integer greater than 1; the 1601 processor also configures, according to the configured time-frequency pattern, the N CSI-RS resources for the terminal. The N CSI-RS resources are used by the network device to obtain N pieces of downlink channel information from the TRP to the terminal.

[00291] In one implementation, the 1601 processor is specifically configured to: determine, based on the number of CSI-RS resources and the number of ports of each CSI-RS resource configured for the terminal, a total number of ports of the N CSI-RS resources; determine that the total number of ports of the N CSI-RS resources is less than or equal to a first limit value, and / or that the number of CSI-RS resources is less than or equal to a second limit value, wherein the first limit value is a limit value of a total number of ports of CSI-RS resources of the N CSI-RS resources in a single slot, and the second limit value is a limit value of a total number of CSI-RS resources of the N CSI-RS resources in the single slot;and determine that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern, where the first configured time-frequency pattern indicates the time-frequency domain resource mapping of the N CSI-RS resources within a slot.

[00292] In one possible implementation, the 1601 processor is specifically configured to: determine a sub-band size Petition 870250120923, dated 12 / 29 / 2025, page 81 / 222 / 89 configured for the terminal; determine a density for each CSI-RS resource configured for the terminal, where the density of each CSI-RS resource is identical or different; and configure the N CSI-RS resources within a slot using a first time-frequency pattern configured according to the sub-band size, the density of each CSI-RS resource, and the number of ports for each CSI-RS resource.

[00293] In one possible implementation, the 1601 processor is specifically configured to: determine a configured sub-band size for the terminal; determine a density for each CSI-RS resource configured for the terminal, where the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port; determine a number of PRBs configured for the terminal; and configure the N CSI-RS resources within a slot using the first time-frequency pattern configured according to a PRB resource index, the sub-band size, the density of each CSI-RS resource, and the number of ports for each CSI-RS resource.

[00294] In one implementation, the 1601 processor is specifically configured to: determine, based on the number of CSI-RS resources and the number of ports of each CSI-RS resource configured for the terminal, a total number of ports of the N CSI-RS resources; determine a density of each CSI-RS resource configured for the terminal; determine that the total number of ports of the N CSI-RS resources is greater than a first threshold value, the density of each CSI-RS resource is identical, and the density is 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern.

[00295] In one implementation, the 1601 processor is specifically configured to: determine the density of each CSI-RS resource configured for the terminal; determine the number of resources Petition 870250120923, dated 12 / 29 / 2025, page 82 / 222 / 89 of CSI-RS is greater than a second threshold value, the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern.

[00296] In one implementation, the 1601 processor is specifically configured to: determine, based on the number of CSI-RS resources and the number of ports for each CSI-RS resource, a total number of ports for the N CSI-RS resources; determine a density for each CSI-RS resource configured for the terminal; determine a codebook parameter R configured by the network device for the terminal; determine that the total number of ports for the N CSI-RS resources is greater than a first threshold value, and the codebook parameter R is 1, the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port; and determine that the time-frequency pattern configured for the N CSI-RS resources is a first time-frequency pattern configured.

[00297] In one possible implementation, the 1601 processor is specifically configured to: determine a configured sub-band size for the terminal; and configure the N CSI-RS resources within a slot using the first time-frequency pattern configured according to the sub-band size, the density of each CSI-RS resource, and the number of ports for each CSI-RS resource.

[00298] In one possible implementation, the 1601 processor is specifically configured to: determine a configured sub-band size for the terminal; determine a number of PRBs configured for the terminal; and configure the N CSI-RS resources within a slot using the first time-frequency pattern configured according to a PRB resource index, the sub-band size, the density of each CSI-RS resource, and the number of ports for each CSI-RS resource. Petition 870250120923, dated 12 / 29 / 2025, page 83 / 222 / 89

[00299] In one possible implementation, the 1601 processor is specifically configured to: configure a first CSI-RS resource from among the N CSI-RS resources at an odd position in the PRB resource index, and configure a second CSI-RS resource from among the N CSI-RS resources at an even position in the PRB resource index using the first time-frequency pattern configured according to the subband size, the density of each CSI-RS resource, and the number of ports of each CSI-RS resource.

[00300] In one implementation, the 1601 processor is specifically configured to: determine a total number of ports of the N CSI-RS resources according to the number of CSI-RS resources and the number of ports of each CSI-RS resource; determine that the total number of ports of the N CSI-RS resources is greater than a first limit value and the number of CSI-RS resources is greater than a second limit value; determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern, where the second configured time-frequency pattern indicates the time-frequency domain resource mapping of the N CSI-RS resources within a plurality of slots.

[00301] In one possible implementation, the 1601 processor is specifically configured to: determine a configured sub-band size for the terminal; determine a density for each CSI-RS resource configured for the terminal; and configure the N CSI-RS resources within the plurality of slots using the second configured time-frequency pattern, according to the sub-band size, the density of each CSI-RS resource, and the number of ports for each CSI-RS resource.

[00302] In one possible implementation, the 1601 processor is specifically configured to: configure a first CSI-RS resource from among the N CSI-RS resources in a first slot; and configure a Petition 870250120923, dated 12 / 29 / 2025, page 84 / 222 79 / 89 second CSI-RS resource among the N CSI-RS resources in a second slot, wherein a time interval between the first slot and the second slot is less than or equal to X slots, where X is a positive integer.

[00303] In one possible implementation, the number of CSI-RS features included in the first CSI-RS feature is Ni, and a formula for calculating it is expressed as follows: or , where is a rounded-up function, [] is a rounded-down function, and N is the number of CSI-RS features; and the number of CSI-RS features included in the second CSI-RS feature is NN.

[00304] Optionally, the density of the first CSI-RS feature is identical to the density of the second CSI-RS feature; or the density of the first CSI-RS feature is different from the density of the second CSI-RS feature.

[00305] Optionally, a time-frequency resource position of the first CSI-RS resource is identical to a time-frequency resource position of the second CSI-RS resource; or a time-frequency resource position of the first CSI-RS resource is different from a time-frequency resource position of the second CSI-RS resource; or time-frequency resource positions of a portion of the CSI-RS resources in the first CSI-RS resource are identical to time-frequency resource positions of a portion of the CSI-RS resources in the second CSI-RS resource; or time-frequency resource positions of a portion of the CSI-RS resources in the first CSI-RS resource are different from time-frequency resource positions of a portion of the CSI-RS resources in the second CSI-RS resource.

[00306] In an optional implementation, the 1601 processor is specifically configured to: determine that the number of CSI-RS resources included in the first CSI-RS resource is greater than or equal to 2; and configure the CSI-RS resources included in the first CSI-RS resource. Petition 870250120923, dated 12 / 29 / 2025, page 85 / 222 / 89 within the first slot, where the densities of the CSI-RS resources included in the first CSI-RS resource are identical or different.

[00307] In an optional implementation, the 1601 processor is specifically configured to: determine that the number of CSI-RS resources included in the first CSI-RS resource is greater than or equal to 2; determine the densities of the CSI-RS resources included in the first CSI-RS resource configured for the terminal, where the densities of the CSI-RS resources included in the first CSI-RS resource are identical, and the densities are 0.5 RE / RB / port; and configure the first CSI-RS resource within the first slot according to a PRB resource index and the densities of the CSI-RS resources included in the first CSI-RS resource.

[00308] In an optional implementation, the 1601 processor is specifically configured to: determine that the number of CSI-RS resources included in the second CSI-RS resource is greater than or equal to 2; and configure the CSI-RS resources included in the second CSI-RS resource within the second slot, where the densities of the CSI-RS resources included in the second CSI-RS resource are identical or different.

[00309] In an optional implementation, the 1601 processor is specifically configured to: determine that the number of CSI-RS resources included in the second CSI-RS resource is greater than or equal to 2; determine the densities of the CSI-RS resources included in the second CSI-RS resource configured for the terminal, where the densities of the CSI-RS resources included in the second CSI-RS resource are identical, and the densities are 0.5 RE / RB / port; and configure the second CSI-RS resource within the second slot according to a PRB resource index and the densities of the CSI-RS resources included in the second CSI-RS resource.

[00310] In an optional implementation, the 1601 processor is specifically configured to: determine a total number of ports from the N CSI-RS resources according to the number of CSI-RS resources and the Petition 870250120923, dated 12 / 29 / 2025, page 86 / 222 / 89: number of ports for each CSI-RS resource; determine the density of each CSI-RS resource configured for the terminal; determine that the total number of ports of the N CSI-RS resources is greater than a first limit value and the densities of the N CSI-RS resources are different, or that the total number of ports of the N CSI-RS resources is greater than a first limit value and the densities of the N CSI-RS resources are identical, but greater than 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

[00311] In one implementation, the 1601 processor is specifically configured to: determine a density for each CSI-RS resource configured for the terminal; determine that the number of CSI-RS resources is greater than a second threshold value and the densities of the N CSI-RS resources are different, or that the number of CSI-RS resources is greater than a second threshold value and the densities of the N CSI-RS resources are identical but greater than 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

[00312] In one implementation, the 1601 processor is specifically configured to: determine a total number of ports of N CSI-RS resources according to the number of CSI-RS resources and the number of ports of each CSI-RS resource; determine a codebook parameter R configured by the network device for the terminal; determine a density of each CSI-RS resource configured for the terminal; determine that the total number of ports of N CSI-RS resources is greater than a first limit value and the codebook parameter R is 1 and the densities of the N CSI-RS resources are different, or that the total number of ports of N CSI-RS resources is greater than the first limit value, the codebook parameter R is 1 and the densities of the N CSI-RS resources are different. Petition 870250120923, dated 12 / 29 / 2025, page 87 / 222 / 89 are identical, but greater than 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

[00313] In one implementation, the 1601 processor is specifically configured to: determine a sub-band size configured for the terminal; and configure the N CSI-RS resources within a plurality of slots using the second time-frequency pattern configured according to the sub-band size, the density of each CSI-RS resource, and the number of ports of each CSI-RS resource.

[00314] In the case where the chip is used to implement the terminal functions in the embodiments of the present invention, the 1602 interface is configured to receive CSI-RS resource configuration information and / or CSI reporting resource configuration information sent by a network device, wherein the CSI-RS resource configuration information includes a number of ports for each CSI-RS resource and / or a number of CSI-RS resources among N CSI-RS resources, each CSI-RS resource corresponds to a TRP for CJT, and N is an integer greater than 1; the 1601 processor is configured to determine a configured time-frequency pattern of the N CSI-RS resources according to the CSI-RS resource configuration information and / or the CSI reporting resource configuration information; the 1601 processor is configured to determine resource positions of the N CSI-RS resources according to the configured time-frequency pattern.

[00315] In one implementation, the 1601 processor is specifically configured to: determine the total number of ports of the N CSI-RS resources based on the number of CSI-RS resources and the number of ports of each CSI-RS resource; determine that the total number of ports of the N CSI-RS resources is less than or equal to a first threshold value, and / or the number of CSI-RS resources is less than or equal to a second threshold value. Petition 870250120923, dated 12 / 29 / 2025, page 88 / 222 / 89 limit value, wherein the first limit value is a limit value of a total number of CSI-RS resource ports of the N CSI-RS resources in a single slot, and the second limit value is a limit value of a total number of CSI-RS resources of the N CSI-RS resources in the single slot; and determine that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern, wherein the first configured time-frequency pattern indicates the time-frequency domain resource mapping of the N CSI-RS resources within a slot.

[00316] In one implementation, the 1601 processor is specifically configured to: determine a total number of ports of the N CSI-RS resources according to the number of CSI-RS resources and the number of ports of each CSI-RS resource; determine a density of each CSI-RS resource configured by the network device for the terminal; determine that the total number of ports of the N CSI-RS resources is greater than a first threshold value, the density of each CSI-RS resource is identical, and the density is 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern.

[00317] In one implementation, the 1601 processor is specifically configured to: determine the density of each CSI-RS resource configured by the network device for the terminal; determine that the number of CSI-RS resources is greater than a second threshold value, the density of each CSI-RS resource is identical, and the density is 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern.

[00318] In one implementation, the 1601 processor is specifically configured to: determine a total number of ports from the N CSI-RS resources according to the number of CSI-RS resources and the Petition 870250120923, dated 12 / 29 / 2025, page 89 / 222 / 89 number of ports of each CSI-RS resource; determine a density of each CSI-RS resource configured by the network device for the terminal; determine a codebook parameter R configured by the network device for the terminal; determine that the total number of ports of the N CSI-RS resources is greater than a first limit value, the codebook parameter R is 1, and the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port; and determine that the time-frequency pattern configured of the N CSI-RS resources is a first time-frequency pattern configured.

[00319] In one implementation, the 1601 processor is specifically configured to: determine a total number of ports of the N CSI-RS resources according to the number of CSI-RS resources and the number of ports of each CSI-RS resource; determine that the total number of ports of the N CSI-RS resources is greater than a first limit value and the number of CSI-RS resources is greater than a second limit value; determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern, where the second configured time-frequency pattern indicates the time-frequency domain resource mapping of the N CSI-RS resources within a plurality of slots.

[00320] In one implementation, the 1601 processor is specifically configured to: determine the total number of ports of the N CSI-RS resources based on the number of CSI-RS resources and the number of ports of each CSI-RS resource; determine the density of each CSI-RS resource configured by the network device for the endpoint; determine that the total number of ports of the N CSI-RS resources is greater than a first threshold value and the densities of the N CSI-RS resources are different, or that the total number of ports of the N CSI-RS resources is greater than a first threshold value and the densities of the N CSI-RS resources are Petition 870250120923, dated 12 / 29 / 2025, page 90 / 222 / 89 identical, but greater than 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

[00321] In one implementation, the 1601 processor is specifically configured to: determine the density of each CSI-RS resource configured by the network device for the terminal; determine that the number of CSI-RS resources is greater than a second threshold value and the densities of the N CSI-RS resources are different, or that the number of CSI-RS resources is greater than a second threshold value and the densities of the N CSI-RS resources are identical but greater than 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

[00322] In one implementation, the 1402 processing module is specifically configured to: determine a total number of ports of N CSI-RS resources based on the number of CSI-RS resources and the number of ports of each CSI-RS resource; determine a codebook parameter R configured by the network device for the terminal; determine a density of each CSI-RS resource configured by the network device for the terminal; determine that the total number of ports of N CSI-RS resources is greater than a first threshold value, the codebook parameter R is 1 and the densities of the N CSI-RS resources are different, or that the total number of ports of N CSI-RS resources is greater than a first threshold value, the codebook parameter R is 1 and the densities of the N CSI-RS resources are identical but greater than 0.5 RE / RB / port;and determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

[00323] Optionally, the chip additionally includes a 1603 memory, which is used to store computer programs and data. Petition 870250120923, dated 12 / 29 / 2025, pages 91 / 222 / 89 necessary.

[00324] Those skilled in the art may also understand that the various logical blocks and illustrative steps listed in the embodiments of the description may be implemented by electronic hardware, computer software, or combinations thereof. Whether such functionality is implemented in hardware or software depends on a specific application and general system design requirements. Those skilled in the art may use various methods to implement the described functions for each specific application, but such implementation should not be understood as going beyond the scope of protection of the embodiments of the description.

[00325] The embodiments described also provide a system for configuring CSI-RS resources, which includes a communication device that serves as a terminal (such as the terminal in the method embodiments described) and a communication device that serves as a network device in the embodiment of Figure 14. Alternatively, the system includes a communication device that serves as a terminal (such as the terminal in the method embodiments described) and a communication device that serves as a network device in the embodiment of Figure 15.

[00326] The description also provides a readable storage medium in which instructions are stored and, when the instructions are executed by a computer, the functions of any of the method modalities described are implemented.

[00327] The description also provides a computer program product that implements the functions of any of the method embodiments set forth when executed by a computer.

[00328] In the modalities described, it may be implemented, in whole or in part, by software, hardware, embedded software, or any combination thereof. When implemented in software, it may be implemented, in whole or in part, in the form of a program product. Petition 870250120923, dated 12 / 29 / 2025, page 92 / 222 / 89 computer. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the processes or functions described in the embodiments of the description are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or another programmable device. The computer program may be stored on, or transferred from, a computer-readable storage medium to another.For example, a computer program can be transferred from one web page, computer, server, or data center to another web page, computer, server, or data center via a wired medium (such as a coaxial cable, fiber optic cable, digital subscriber line (DSL)) or a wireless medium (such as infrared, wireless, microwave, etc.). Computer-readable storage media can be any available medium that can be accessed by a computer or a data storage device, such as a server, data center, etc., that contains one or more integrated available media. Available media can be magnetic media (e.g., a floppy disk, a hard disk, a tape), optical media (e.g., a digital video disc (DVD)), or semiconductor media (e.g., a solid-state drive (SSD)), etc.

[00329] Those skilled in the art may understand that first, second, and other numerical values ​​involved in the description are only for convenience of description and are not used to limit the scope of the description modalities or to indicate the order.

[00330] The term “at least one” in the description can also be described as one or more, and “a plurality of” can be two, three, four, or more, which is not limited by the description. In the description modalities, for a technical characteristic, the technical characteristic is distinguished by Petition 870250120923, dated 12 / 29 / 2025, page 93 / 222 / 89 “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc. The technical characteristics described in “first”, “second”, “third”, “A”, “B”, “C” and “D” are in no particular order or sequence of sizes.

[00331] The corresponding relationships shown in each table in the description can be configured or predefined. The information values ​​in each table are only examples and can be configured with other values, which is not limited by the description. When configuring the correspondence between information and each parameter, it is not necessarily required to configure all the correspondences shown in each table. For example, in the description table, the corresponding relationships shown in some rows may not be configured. As another example, appropriate deformation adjustments can be made based on the exposed tables, such as splitting, merging, etc.The parameter names shown in the titles of the exposed tables can also be other names that can be understood by the communication device, and the parameter values ​​or expressions can also be other values ​​or expressions that can be understood by the communication device. During the implementation of the exposed tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, etc.

[00332] The term "Predefinição" in the description can be understood as definition, predefinition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-recording.

[00333] Those skilled in the art may be aware that the algorithmic units and steps of each example described, together with the embodiments described herein, can be implemented with electronic hardware, or a combination of computer software and hardware. Petition 870250120923, dated 12 / 29 / 2025, page 94 / 222 / 89 electronic. Whether these functions are performed in hardware or software depends on a specific application and the design constraints of the technical solution. Skilled individuals may implement the described functionality using different methods for each specific application, but such implementations should not be considered to go beyond the scope of the description.

[00334] Those skilled in the art will clearly understand that, for convenience and simplicity of description, the specific operating processes of the systems, devices and units described above may be referred to the corresponding processes in the method modalities set forth, which will not be repeated here.

[00335] The foregoing only covers specific embodiments of the description, but the scope of protection of the description is not limited. Those skilled in the art can easily conceive of changes or substitutions in the technical scope described in the description, which must be covered by the scope of protection of the description. Therefore, the scope of protection of the description must be determined by the scope of protection of the claims. Petition 870250120923, dated 12 / 29 / 2025, page 95 / 222

Claims

1 / 15 CLAIMS 1. Method for configuring channel state information reference signal (CSI-RS) resources, characterized in that the method is performed by a network device (101), comprising: determining (201), according to at least one of a number of ports of each CSI-RS resource among N CSI-RS resources or a number of CSI-RS resources configured for a terminal (102), a configured time-frequency pattern of the N CSI-RS resources, wherein each CSI-RS resource corresponds to a receive and transmit point (TRP) for coherent joint transmission, and N is an integer greater than 1; and configuring (202, 304, 505, 604, 706, 804, 1005, 1104, 1206), according to the configured time-frequency pattern, the N CSIRS resources for the terminal.

2. Method according to claim 1, characterized in that determining, based on at least one of the number of ports of each CSI-RS resource among N CSI-RS resources or the number of CSI-RS resources configured for the terminal, the configured time-frequency pattern of the N CSI-RS resources comprises at least one of: determining (301), based on the number of CSI-RS resources and the number of ports of each CSI-RS resource, a total number of ports of the N CSI-RS resources; determine (302) at least one of the following: the total number of ports of the N CSI-RS resources is less than or equal to a first limit value, or the number of CSI-RS resources is less than or equal to a second limit value, wherein the first limit value is a limit value of a total number of ports of CSI-RS resources of the N CSI-RS resources in a single slot, and the second limit value is a limit value of a total number of resources of Petition 870250120923, of 12 / 29 / 2025, p.96 / 222 2 / 15 CSI-RS of the N CSI-RS resources in the single slot; or determine (303) that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern, wherein the first configured time-frequency pattern indicates the time-frequency domain resource mapping of the N CSI-RS resources within a slot.

3. A method according to claim 2, characterized in that configuring, according to the configured time-frequency pattern, the N CSI-RS resources for the terminal comprises at least one of: determining a configured sub-band size for the terminal; determining a density for each CSI-RS resource, wherein the density of each CSI-RS resource is identical or different; or configuring the N CSI-RS resources within a slot using the first configured time-frequency pattern, according to the sub-band size, the density of each CSI-RS resource, and the number of ports for each CSI-RS resource.

4. Method according to claim 2, characterized in that configuring, according to the configured time-frequency pattern, the N CSI-RS resources for the terminal comprises: determining a configured sub-band size for the terminal; determining a density for each CSI-RS resource, wherein the density of each CSI-RS resource is identical, and the density is half of a resource element / resource block / port (0.5 RE / RB / port); determining a number of configured physical resource blocks (PRBs) for the terminal; and configuring the N CSI-RS resources within a slot using the first configured time-frequency pattern, according to an index of Petition 870250120923, dated 12 / 29 / 2025, page 97 / 222 3 / 15 PRB resource, the sub-band size, the density of each CSI-RS resource and the number of ports of each CSI-RS resource.

5. Method according to claim 1, characterized in that determining, based on at least one of the number of ports of each CSI-RS resource among N CSI-RS resources or the number of CSI-RS resources configured for the terminal, the configured time-frequency pattern of the N CSI-RS resources comprises one of: determining (501), based on the number of CSI-RS resources and the number of ports of each CSI-RS resource, a total number of ports of the N CSI-RS resources; determining (502) a density of each CSI-RS resource; determining (503) that the total number of ports of the N CSI-RS resources is greater than a first limit value, the density of each CSI-RS resource is identical and the density is half of a resource element / resource block / port (0.5 RE / RB / port); and determining (504) that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern;determine (601) a density of each CSI-RS resource among the N CSI-RS resources and the number of CSI-RS resources; determine (602) that the number of CSI-RS resources is greater than a second threshold value, the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port; and determine (603) that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern; or determine (701), based on the number of ports of each CSI-RS resource among the N CSI-RS resources and the number of CSI-RS resources, a total number of ports of the N CSI-RS resources; Petition 870250120923, dated 12 / 29 / 2025, page 98 / 222 4 / 15 determine (702) a density of each CSI-RS resource; determine (703) an R codebook parameter configured by the network device for the terminal;determine (704) that the total number of ports of the N CSI-RS resources is greater than a first limit value, the codebook parameter R is 1, the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port; and determine (705) that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern.; 6. A method according to claim 5, characterized in that configuring, according to the configured time-frequency pattern, the N CSI-RS resources for the terminal comprises one of: determining a configured sub-band size for the terminal; and configuring the N CSI-RS resources within a slot using the first configured time-frequency pattern, according to the sub-band size, the density of each CSI-RS resource, and the number of ports of each CSI-RS resource; or determining a configured sub-band size for the terminal; determining a number of configured physical resource blocks (PRBs) for the terminal; and configuring the N CSI-RS resources within a slot using the first configured time-frequency pattern, according to a PRB resource index, the sub-band size, the density of each CSI-RS resource, and the number of ports of each CSI-RS resource.

7. Method according to claim 4 or 6, characterized in that configuring the N CSI-RS resources within a slot using the first configured time-frequency pattern, according to the PRB resource index, the sub-band size, the density of each CSI-RS resource and the number of ports of each CSI-RS resource comprises: configuring a first CSI-RS resource among the N CSI-RS resources in an odd position of the PRB resource index and configuring a second CSI-RS resource among the N CSI-RS resources in an even position of the PRB resource index using the first configured time-frequency pattern, according to the sub-band size, the density of each CSI-RS resource and the number of ports of each CSI-RS resource.

8. Method according to claim 1, characterized in that determining, based on at least one of the number of ports of each CSI-RS resource among N CSI-RS resources or the number of CSI-RS resources configured for the terminal, the configured time-frequency pattern of the N CSI-RS resources comprises: determining (801), based on the number of CSI-RS resources and the number of ports of each CSI-RS resource, a total number of ports of the N CSI-RS resources; determining (802) that the total number of ports of the N CSI-RS resources is greater than a first limit value and the number of CSI-RS resources is greater than a second limit value; and determining (803) that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern, wherein the second configured time-frequency pattern indicates the time-frequency domain resource mapping of the N CSI-RS resources within a plurality of slots.

9. Method according to claim 8, characterized in that configuring, according to the configured time-frequency pattern, the N CSI-RS resources for the terminal comprises: Petition 870250120923, dated 12 / 29 / 2025, p.100 / 222 6 / 15 determine a configured sub-band size for the terminal; determine a density for each CSI-RS resource; and configure the N CSI-RS resources within the plurality of slots using the second configured time-frequency pattern, according to the sub-band size, the density of each CSI-RS resource, and the number of ports for each CSI-RS resource; wherein configuring the N CSI-RS resources within the plurality of slots comprises: configuring a first CSI-RS resource from among the N CSI-RS resources within a first slot; and configuring a second CSI-RS resource from among the N CSI-RS resources within a second slot, wherein a time interval between the first slot and the second slot is less than or equal to X slots, wherein X is a positive integer.

10. Method according to claim 7 or 9, characterized in that the number of CSI-RS features comprised in the first CSI-RS feature is , and a formula for calculating is expressed as follows: or , where is a function rounded up, [J is a function rounded down and N is the number of CSI-RS features; and the number of CSI-RS features comprised in the second CSI-RS feature is N- ; a density of the first CSI-RS feature is identical to a density of the second CSI-RS feature; or a density of the first CSI-RS feature is different from a density of the second CSI-RS feature; Petition 870250120923, dated 12 / 29 / 2025, p.101 / 222 7 / 15 a time-frequency resource position of the first CSI-RS resource is identical to a time-frequency resource position of the second CSI-RS resource; or a time-frequency resource position of the first CSI-RS resource is different from a time-frequency resource position of the second CSI-RS resource; or time-frequency resource positions of a portion of the CSI-RS resources in the first CSI-RS resource are identical to time-frequency resource positions of a portion of the CSI-RS resources in the second CSI-RS resource; or time-frequency resource positions of a portion of the CSI-RS resources in the first CSI-RS resource are different from time-frequency resource positions of a portion of the CSI-RS resources in the second CSI-RS resource.

11. Method according to claim 9, characterized in that configuring the first CSI-RS feature among the N CSI-RS features within the first slot comprises one of: determining that a number of CSI-RS features comprised in the first CSI-RS feature is greater than or equal to 2; and configuring the CSI-RS features comprised in the first CSI-RS feature within the first slot, wherein the densities of the CSI-RS features comprised in the first CSI-RS features are identical or different; or determining that a number of CSI-RS features comprised in the first CSI-RS feature is greater than or equal to 2;determine the densities of the CSI-RS resources comprised in the first CSI-RS resource configured for the terminal, wherein the densities of the CSI-RS resources comprised in the first CSI-RS resource are identical, and the densities are half of a resource / resource block / port element (0.5 RE / RB / port); and configure the first CSI-RS resource within the first slot according to a physical resource block (PRB) resource index and the densities of the CSI-RS resources comprised in the first CSI-RS resource; and wherein configuring the second CSI-RS resource among the N CSI-RS resources within the second slot comprises one of: determining that a number of CSI-RS resources comprised in the second CSI-RS resource is greater than or equal to 2;and configure the CSI-RS resources included in the second CSI-RS resource within the second slot, where the densities of the CSI-RS resources included in the second CSI-RS resource are identical or different; or determine that a number of CSI-RS resources included in the second CSI-RS resource is greater than or equal to 2; determine the densities of the CSI-RS resources included in the second CSI-RS resource, where the densities of the CSI-RS resources included in the second CSI-RS resource are identical, and the densities are 0.5 RE / RB / port; and configure the second CSI-RS resource within the second slot according to a PRB resource index and the densities of the CSI-RS resources included in the second CSI-RS resource.

12. Method according to claim 1, characterized in that determining, based on at least one of the number of ports of each CSI-RS resource among N CSI-RS resources or the number of CSI-RS resources configured for the terminal, the configured time-frequency pattern of the N CSI-RS resources comprises one of: determining (1001), based on the number of CSI-RS resources and the number of ports of each CSI-RS resource, a total number of ports of the N CSI-RS resources; determining (1002) a density of each CSI-RS resource;determine (1003) that the total number of ports of the N CSI-RS resources is greater than a first threshold value and the densities of the N CSI-RS resources are different, or that the total number of ports of the N CSI-RS resources is greater than a first threshold value and the densities of the N CSI-RS resources are identical, but greater than half of a resource element / resource block / port (0.5 RE / RB / port); and determine (1004) that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern; determine (1101) a density of each CSI-RS resource and the number of ports of each CSI-RS resource among the N CSI-RS resources;determine (1102) that the number of CSI-RS resources is greater than a second threshold value and the densities of the N CSI-RS resources are different, or that the number of CSI-RS resources is greater than a second threshold value and the densities of the N CSI-RS resources are identical but greater than 0.5 RE / RB / port, and determine (1103) that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern; or determine (1201), based on the number of CSI-RS resources and the number of ports of each CSI-RS resource, a total number of ports of the N CSI-RS resources; determine (1202) a codebook parameter R configured by the network device for the terminal; determine (1203) a density of each CSI-RS resource;determine (1204) that the total number of ports of the N CSI-RS resources is greater than a first threshold value, the codebook parameter R is 1 and the densities of the N CSI-RS resources are different, or that the total number of ports of the N CSI-RS resources is greater than a first threshold value, the codebook parameter R is 1 and the densities of the N CSI-RS resources are identical but greater than 0.5 RE / RB / port; and determine (1205) that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

13. A method according to claim 11, characterized in that configuring, according to the configured time-frequency pattern, the N CSI-RS resources for the terminal comprises: determining a configured sub-band size for the terminal; and configuring the N CSI-RS resources within a plurality of slots using the second configured time-frequency pattern, according to the sub-band size, the density of each CSI-RS resource, and the number of ports of each CSI-RS resource.

14. Method for configuring channel state information reference signal (CSI-RS) resources, performed by a terminal, characterized in that it comprises: receiving (1301) at least one of CSI-RS resource configuration information or CSI reporting resource configuration information sent by a network device, wherein the CSI-RS resource configuration information comprises at least one of a number of ports of each CSI-RS resource among N CSI-RS resources or a number of CSI-RS resources, each CSI-RS resource corresponds to a receive and transmit point (TRP) for coherent joint transmission, and N is an integer greater than 1; determining (1302), as per at least one of Petition 870250120923, dated 12 / 29 / 2025, p.105 / 222 11 / 15 CSI-RS resource configuration information or CSI reporting resource configuration information, a configured time-frequency pattern of the N CSI-RS resources; and determine (1303), according to the configured time-frequency pattern, the resource positions of the N CSI-RS resources.

15. Method according to claim 12, characterized in that determining, based on at least one of the CSI-RS resource configuration information or the CSI reporting resource configuration information, the configured time-frequency pattern of the N CSI-RS resources comprises at least one of: determining, based on the number of CSI-RS resources and the number of ports of each CSI-RS resource, a total number of ports of the N CSI-RS resources; determining at least one of: that the total number of ports of the N CSI-RS resources is less than or equal to a first limit value, or that the number of CSI-RS resources is less than or equal to a second limit value, wherein the first limit value is a limit value of a total number of ports of CSI-RS resources of the N CSI-RS resources in a single slot, and the second limit value is a limit value of a total number of CSI-RS resources of the N CSI-RS resources in the single slot;or determine that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern, where the first configured time-frequency pattern indicates the time-frequency domain resource mapping of the N CSI-RS resources within a slot.

16. Method according to claim 13, characterized in that it determines, based on at least one of the CSI-RS resource configuration information or the CSI reporting resource configuration information, the configured time-frequency pattern of the N Petition 870250120923, dated 12 / 29 / 2025, page.106 / 222 12 / 15 CSI-RS resources comprise one of the following: determine, based on the number of CSI-RS resources and the number of ports of each CSI-RS resource, a total number of ports of the N CSI-RS resources; determine a density of each CSI-RS resource configured by the network device for the terminal; determine that the total number of ports of the N CSI-RS resources is greater than a first limit value, the density of each CSI-RS resource is identical and the density is half of a resource element / resource block / port (0.5 RE / RB / port); and determine that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern.

17. Method according to claim 14, characterized in that determining, based on CSI-RS resource configuration information and / or CSI report resource configuration information, the configured time-frequency pattern of the N CSI-RS resources comprises: determining a density of each CSI-RS resource configured by the network device for the terminal; determining that the number of CSI-RS resources is greater than a second threshold value, the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port; and determining that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern; determining, based on the number of CSI-RS resources and the number of ports of each CSI-RS resource, a total number of ports of the N CSI-RS resources;Petition 870250120923, dated 12 / 29 / 2025, page 107 / 222 13 / 15 determine a density for each CSI-RS resource configured by the network device for the terminal; determine a codebook parameter R configured by the network device for the terminal; determine that the total number of ports of the N CSI-RS resources is greater than a first limit value, the codebook parameter R is 1, the density of each CSI-RS resource is identical and the density is 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a first configured time-frequency pattern; determine, based on the number of CSI-RS resources and the number of ports of each CSI-RS resource, a total number of ports of the N CSI-RS resources; Determine that the total number of ports of the N CSI-RS resources is greater than a first threshold value and the number of CSIRS resources is greater than a second threshold value;and determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern, wherein the second configured time-frequency pattern indicates the time-frequency domain resource mapping of the N CSI-RS resources within a plurality of slots; determine, based on the number of CSI-RS resources and the number of ports of each CSI-RS resource, a total number of ports of the N CSI-RS resources; determine a density of each CSI-RS resource configured by the network device for the endpoint; determine that the total number of ports of the N CSI-RS resources is greater than a first threshold value and the densities of the N resources Petition 870250120923, dated 12 / 29 / 2025, p. 108 / 222 14 / 15 of CSI-RS are different, or the total number of ports of the N CSI-RS resources is greater than a first limit value and the densities of the N CSI-RS resources are identical, but greater than 0.5 RE / RB / port;and determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern; determine a density of each CSI-RS resource configured by the network device for the terminal; determine that the number of CSI-RS resources is greater than a second threshold value and the densities of the N CSI-RS resources are different, or that the number of CSI-RS resources is greater than a second threshold value and the densities of the N CSI-RS resources are identical, but greater than half of a resource element / resource block / port (0.5 RE / RB / port); and determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern; or determine, based on the number of CSI-RS resources and the number of ports of each CSI-RS resource, a total number of ports of the N CSI-RS resources; determine a codebook parameter R configured by the network device for the terminal;Determine the density of each CSI-RS resource configured by the network device for the terminal; determine that the total number of ports of the N CSI-RS resources is greater than a first threshold value, the codebook parameter R is 1, and the densities of the N CSI-RS resources are different, or that the total number of ports of the N CSI-RS resources is greater than a first threshold value, the codebook parameter R is 1, and the densities of the N CSI-RS resources are identical but greater than 0.5 RE / RB / port; and determine that the configured time-frequency pattern of the N CSI-RS resources is a second configured time-frequency pattern.

18. Communication device, characterized in that it comprises a processor and a memory that stores instructions, wherein, when the instructions are executed by the processor, the communication device performs the method as defined in any one of claims 1 to 17. Petition 870250120923, dated 12 / 29 / 2025, pp. 110 / 222

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