Method and apparatus for CSI measurement in node used for wireless communication

Abstract

The invention discloses a method and an apparatus for CSI measurement in a node used for wireless communication. A first node receives a first CSI reporting configuration, the first CSI reporting configuration indicates a first CSI-RS resource set used for channel measurement, and the first CSI-RS resource set comprises a plurality of CSI-RS resources; the first CSI reporting configuration is used for configuring reporting of CSI of which the number of ports is P, and P is a positive integer greater than 1; transmitting the first CSI; the first CSI is the CSI which is configured by the first CSI reporting configuration and aims at the port number P. The first opportunity set comprises at least one transmission opportunity of at least one CSI-RS resource in the first CSI-RS resource set, which is not later than a CSI reference resource of the first CSI, and channel measurement based on the first opportunity set is used for calculating the first CSI; the ratio of the CSI-RS EPRE of one CSI-RS resource in the first opportunity set to the synchronization signal EPRE depends on whether the P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set.

Description

Technical Field

[0001] This application relates to transmission methods and devices in a wireless communication system, and particularly to CSI (Channel State Information) measurement schemes and devices in a wireless communication system. Background Art

[0002] In a wireless communication system supporting MIMO (Multiple-Input Multiple-Output), it is a common technique for a UE (User Equipment) to generate and feedback CSI (Channel Status Information) based on channel and / or interference measurements to assist the base station in multi-antenna processing. In the 5G (the 5th generation) NR (new radio) system, in order for the base station to obtain accurate CSI, the base station configures NZP (Non-Zero Power) CSI-RS (Channel state information reference signal) resources for channel measurement and CSI-IM (Channel State Information–Interference Measurement) resources for interference measurement for the UE. In addition, NZP CSI-RS resources for interference measurement can also be configured. In the standards before 3GPP Release 18, the number of ports of a CSI-RS resource configured by the base station for the UE for channel measurement is the number of ports for which the feedback CSI is targeted.

[0003] To solve coverage and for greater spectral efficiency, larger antenna arrays with more antennas have attracted great interest in the industry. For this reason, the 3GPP (the 3rd Generation Partnership Project) RAN#94 meeting adopted the work item (Work Item, WI) of "NR MIMO Phase 5". Among them, the design of the measurement and reporting of CSI for a larger number of CSI-RS ports (up to 128 at most) is a key issue to be solved.

[0004] In addition, for future communication systems (such as 6G), using ultra-large antenna arrays is also an effective technique to solve coverage and improve spectral efficiency. How to design the measurement and reporting of CSI for an ultra-large number of CSI-RS ports (the maximum value is equal to or greater than 128) is a key issue to be solved. Summary of the Invention

[0005] In the existing system, the UE determines CSI reporting according to the CSI (Channel State Information) reporting configuration and the RS (Reference Signal) resource. The calculation of a CSI report is based on channel measurements in at least one CSI-RS occasion not later than the CSI reference resource. For different cases of the number of ports targeted by the CSI, how to determine the ratio of the CSI-RSEPRE (Energy per resource element) of a CSI-RS resource to the EPRE of the synchronization signal is a key issue.

[0006] In view of the above problems, the present application discloses a solution. It should be noted that although the above description uses the 5G network as an example, the present application is also applicable to future networks (such as 6G, etc.) or other scenarios facing similar problems (for example, scenarios where the link direction changes, or other scenarios supporting multi-level configuration of the transmission direction, or scenarios with base stations or user equipment with stronger capabilities, such as scenarios supporting co-frequency full duplex, or for different application scenarios, such as mobile broadband, ultra-reliable low-latency communication, massive machine communication, non-terrestrial networks, integrated communication and sensing networks, intelligent meta-surfaces, terahertz networks), and similar technical effects can also be achieved. In addition, adopting a unified solution for different networks or different scenarios (including but not limited to scenarios of mobile broadband, ultra-reliable low-latency communication, massive machine communication, non-terrestrial networks, integrated communication and sensing networks, intelligent meta-surfaces, terahertz networks) helps to reduce hardware complexity and cost. Without conflict, the embodiments and features in any node of the present application can be applied to any other node, and vice versa. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily.

[0007] The present application discloses a method in a first node for wireless communication, characterized by including:

[0008] Receiving a first CSI reporting configuration, the first CSI reporting configuration indicating a first set of CSI-RS resources for channel measurement, the first set of CSI-RS resources including multiple CSI-RS resources; the first CSI reporting configuration is used to configure the reporting of CSI for the number of ports being P, and P is a positive integer greater than 1;

[0009] Transmitting a first CSI; the first CSI is the CSI for the number of ports being P configured by the first CSI reporting configuration;

[0010] Among them, the first timing set includes at least one transmission timing of the CSI reference resource no later than the first CSI for at least one CSI-RS resource in the first CSI-RS resource set, and the channel measurement based on the first timing set is used to calculate the first CSI; the ratio of the CSI-RS EPRE (Energy per resource element) of a CSI-RS resource in the first timing set to the EPRE of the synchronization signal depends on whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set.

[0011] As an embodiment, the problems to be solved by this application include: for different cases of the number of ports targeted by the CSI, how to determine the ratio of the CSI-RS EPRE (Energy per resource element) of a CSI-RS resource to the EPRE of the synchronization signal.

[0012] As an embodiment, in the above method, according to the relationship between the number of ports targeted by the CSI and the number of ports of the CSI-RS resource, the ratio of the CSI-RS EPRE of a CSI-RS resource to the EPRE of the synchronization signal is flexibly adjusted.

[0013] As an embodiment, in the above method, according to the relationship between the number of ports targeted by the CSI and the number of ports of the CSI-RS resource, the assumed ratio of the CSI-RS EPRE of a CSI-RS resource to the EPRE of the synchronization signal in the CSI calculation is flexibly adjusted.

[0014] As an embodiment, the benefits of adopting the above method are that it not only supports the case where the number of ports targeted by the CSI in the current standard is equal to the number of ports of the configured CSI-RS resource, but also supports the case where the number of ports targeted by the CSI is greater than the number of ports of the configured CSI-RS resource.

[0015] As an embodiment, the benefits of adopting the above method are that it simplifies the system design.

[0016] As an embodiment, the benefits of adopting the above method are that it has good compatibility with the standard and makes less changes to the standard.

[0017] As an embodiment, the benefits of adopting the above method are that it improves the accuracy of the CSI.

[0018] As an embodiment, the benefits of adopting the above method are that it improves the transmission efficiency.

[0019] As an embodiment, the benefits of adopting the above method are that it improves the transmission capacity.

[0020] As an example, the advantage of adopting the above method is that it improves the system performance.

[0021] According to one aspect of the present application, when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the first CSI indicates a first CSI-RS resource, the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set, and the first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first CSI indicates a first CSI-RS resource group, the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P, and the first timing set includes at least one transmission timing of the CSI reference resource of each CSI-RS resource in the first CSI-RS resource group that is not later than the first CSI.

[0022] As an example, the advantage of adopting the above method is that it simplifies the design of CSI-RS resources.

[0023] As an example, the advantage of adopting the above method is that it avoids designing a CSI-RS resource with a larger number of ports (such as 128 or larger), but realizes the measurement and reporting of CSI with a larger number of ports (such as 128 or larger).

[0024] As an example, the advantage of adopting the above method is that it supports multiple CSI-RS resources to be combined into a CSI-RS resource with a larger number of ports (such as 128 or larger) for measuring channel information with a larger number of ports (such as up to 128 or greater than 128).

[0025] As an example, the advantage of adopting the above method is that it simplifies the system design.

[0026] As an example, the advantage of adopting the above method is that it has good compatibility with the standard and makes less changes to the standard.

[0027] As an example, the advantage of adopting the above method is that it improves the accuracy of CSI.

[0028] As an example, the advantage of adopting the above method is that it improves the transmission efficiency.

[0029] As an example, the advantage of adopting the above method is that it improves the transmission capacity.

[0030] As an embodiment, the advantage of adopting the above method is that the system performance is improved.

[0031] According to one aspect of the present application, it is characterized in that when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of each CSI-RS resource in the first CSI-RS resource group that is not later than the CSI reference resource of the first CSI. The ratio of the CSI-RS EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set to the EPRE of the synchronization signal is the same. The first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set.

[0032] As an embodiment, the advantage of adopting the above method is that the system design is simplified.

[0033] As an embodiment, the advantage of adopting the above method is that it has good compatibility with the standard and makes less changes to the standard.

[0034] According to one aspect of the present application, it is characterized in that the first timing set includes at least one transmission timing of the first CSI-RS resource that is not later than the CSI reference resource of the first CSI. The first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set; when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the EPRE of the synchronization signal is the first power control offset; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the EPRE of the synchronization signal is the second power control offset.

[0035] According to one aspect of the present application, when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of the first CSI-RS resource that is no later than the CSI reference resource of the first CSI. The first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set, and the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the first power control offset. When P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of each CSI-RS resource in the first CSI-RS resource group that is no later than the CSI reference resource of the first CSI. The first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, and the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P. The ratio of the CSI-RS EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set to the synchronization signal EPRE is the second power control offset.

[0036] As an embodiment, the advantage of adopting the above method is that it not only supports the case where the number of ports targeted by CSI in the current standard is equal to the number of ports of the configured CSI-RS resource, but also supports the case where the number of ports targeted by CSI is greater than the number of ports of the configured CSI-RS resource.

[0037] As an embodiment, the advantage of adopting the above method is that it simplifies the system design.

[0038] As an embodiment, the advantage of adopting the above method is that it has good compatibility with the standard and makes less modification to the standard.

[0039] As an embodiment, the advantage of adopting the above method is that it improves the accuracy of CSI.

[0040] As an embodiment, the advantage of adopting the above method is that it improves the transmission efficiency.

[0041] As an embodiment, the advantage of adopting the above method is that it improves the transmission capacity.

[0042] As an embodiment, the advantage of adopting the above method is that it improves the system performance.

[0043] According to one aspect of the present application, it is characterized in that the first power control offset and the second power control offset are respectively indicated by two IEs. The IE indicating the first power control offset is used to configure the first CSI-RS resource, and an IE indicating the second power control offset is different from any IE used to configure a CSI-RS resource.

[0044] As an embodiment, the advantage of adopting the above method is that it simplifies the system design.

[0045] As an embodiment, the advantage of adopting the above method is that it has good compatibility with the standard and makes less modification to the standard.

[0046] According to one aspect of the present application, it is characterized in that each CSI-RS resource in the first CSI-RS resource set is configured with a ratio of CSI-RS EPRE to synchronization signal EPRE; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first numerical set includes the ratios of CSI-RS EPRE to synchronization signal EPRE configured for each CSI-RS resource in the first CSI-RS resource group, and the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set; the second power control offset is a value in the first numerical set, or the second power control offset depends on the first numerical set.

[0047] As an embodiment, the advantage of adopting the above method is that it simplifies the system design.

[0048] As an embodiment, the advantage of adopting the above method is that it has good compatibility with the standard and makes less modification to the standard.

[0049] The present application discloses a method in a second node for wireless communication, which is characterized by including:

[0050] Sending a first CSI reporting configuration, the first CSI reporting configuration indicating a first CSI-RS resource set for channel measurement, the first CSI-RS resource set including multiple CSI-RS resources; the first CSI reporting configuration is used to configure the reporting of CSI for a port number of P, and P is a positive integer greater than 1;

[0051] Receiving a first CSI; the first CSI is the CSI for a port number of P configured by the first CSI reporting configuration;

[0052] Among them, the first timing set includes at least one transmission timing of the CSI reference resource of at least one CSI-RS resource in the first CSI-RS resource set that is not later than the first CSI. The channel measurement based on the first timing set is used to calculate the first CSI; the ratio of the CSI-RS EPRE of one CSI-RS resource in the first timing set to the synchronization signal EPRE depends on whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set.

[0053] According to one aspect of the present application, when P is equal to the number of ports of one CSI-RS resource in the first CSI-RS resource set, the first CSI indicates the first CSI-RS resource, and the first CSI-RS resource is one CSI-RS resource in the first CSI-RS resource set. The first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first CSI indicates the first CSI-RS resource group, and the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set. The total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P, and the first timing set includes at least one transmission timing of the CSI reference resource of each CSI-RS resource in the first CSI-RS resource group that is not later than the first CSI.

[0054] According to one aspect of the present application, when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of the CSI reference resource of each CSI-RS resource in the first CSI-RS resource group that is not later than the first CSI. The ratio of the CSI-RS EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set to the synchronization signal EPRE is the same. The first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set.

[0055] According to one aspect of the present application, it is characterized in that the first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI, and the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set; when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the first power control offset; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the second power control offset.

[0056] According to one aspect of the present application, it is characterized in that when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI, the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set, and the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the first power control offset; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of the CSI reference resource of each CSI-RS resource in the first CSI-RS resource group that is not later than the first CSI, the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P, and the ratio of the CSI-RS EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set to the synchronization signal EPRE is the second power control offset.

[0057] According to one aspect of the present application, it is characterized in that the first power control offset and the second power control offset are respectively indicated by two IEs, and the IE indicating the first power control offset is used to configure the first CSI-RS resource, and one IE indicating the second power control offset is different from any IE used to configure a CSI-RS resource.

[0058] According to one aspect of the present application, it is characterized in that each CSI-RS resource in the first CSI-RS resource set is configured with a ratio of CSI-RS EPRE to synchronization signal EPRE; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first numerical set includes the ratios of CSI-RS EPRE to synchronization signal EPRE configured for each CSI-RS resource in the first CSI-RS resource group, and the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set; the second power control offset is a value in the first numerical set, or the second power control offset depends on the first numerical set.

[0059] The present application discloses a first node device for use in wireless communication, characterized by including:

[0060] A first receiver, receiving a first CSI reporting configuration, the first CSI reporting configuration indicating a first CSI-RS resource set for channel measurement, the first CSI-RS resource set including multiple CSI-RS resources; the first CSI reporting configuration is used to configure reporting of CSI for a port number of P, where P is a positive integer greater than 1;

[0061] A first transmitter, transmitting a first CSI; the first CSI is the CSI for a port number of P configured by the first CSI reporting configuration;

[0062] Among them, the first timing set includes at least one transmission timing of at least one CSI-RS resource in the first CSI-RS resource set that is no later than the CSI reference resource of the first CSI, and the channel measurement based on the first timing set is used to calculate the first CSI; the ratio of CSI-RS EPRE to synchronization signal EPRE of a CSI-RS resource in the first timing set depends on whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set.

[0063] The present application discloses a second node device for use in wireless communication, characterized by including:

[0064] A second transmitter, transmitting a first CSI reporting configuration, the first CSI reporting configuration indicating a first CSI-RS resource set for channel measurement, the first CSI-RS resource set including multiple CSI-RS resources; the first CSI reporting configuration is used to configure reporting of CSI for a port number of P, where P is a positive integer greater than 1;

[0065] A second receiver, which receives first CSI; the first CSI is the CSI for a port number of P configured by the first CSI reporting configuration.

[0066] Wherein, the first timing set includes at least one transmission timing of the CSI reference resource not later than the first CSI of at least one CSI-RS resource in the first CSI-RS resource set, and the channel measurement based on the first timing set is used to calculate the first CSI; the ratio of the CSI-RS EPRE of one CSI-RS resource in the first timing set to the synchronization signal EPRE depends on whether P is greater than the port number of any CSI-RS resource in the first CSI-RS resource set.

[0067] As an embodiment, compared with the traditional solution, the present application has the following advantages:

[0068] - Flexibly adjust the ratio of the CSI-RS EPRE to the synchronization signal EPRE assumed in one transmission timing for channel measurement based on the relationship between the port number of the CSI and the port number of the CSI-RS resource;

[0069] - Simplify the design of CSI-RS resources;

[0070] - Avoid designing a CSI-RS resource with a very large port number (such as 128 or larger);

[0071] - Can achieve the measurement and reporting of CSI with a larger port number (such as 128 or larger) without changing the maximum port number of CSI-RS resources supported in the current standard.

[0072] - Support multiple CSI-RS resources to be combined into a CSI-RS resource with a larger port number (such as 128 or larger) for measuring channel information with a larger port number (such as up to 128 or greater than 128);

[0073] - Simplify the system design;

[0074] - Have good compatibility with the standard and make less changes to the standard;

[0075] - Improve the accuracy of CSI;

[0076] - Improve the transmission efficiency;

[0077] - Improve the transmission capacity.

[0078] - Improve the system performance. Description of the Drawings

[0079] Other features, objects, and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0080] Figure 1 A flowchart showing a first CSI reporting configuration and a first CSI according to an embodiment of the present application;

[0081] Figure 2 A schematic diagram showing a network architecture according to an embodiment of the present application;

[0082] Figure 3 A schematic diagram showing an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0083] Figure 4 A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application;

[0084] Figure 5 A flowchart showing a wireless transmission according to an embodiment of the present application;

[0085] Figure 6 A schematic diagram showing the relationship between a first CSI and P according to an embodiment of the present application;

[0086] Figure 7 A schematic diagram showing the relationship between the ratio of the CSI-RS EPRE of a CSI-RS resource in a first timing set to the synchronization signal EPRE and P according to an embodiment of the present application;

[0087] Figure 8 A schematic diagram showing the relationship between the ratio of the CSI-RS EPRE of a CSI-RS resource in a first timing set to the synchronization signal EPRE and P according to an embodiment of the present application;

[0088] Figure 9 A schematic diagram showing the relationship between the ratio of the CSI-RS EPRE of a CSI-RS resource in a first timing set to the synchronization signal EPRE and P according to another embodiment of the present application;

[0089] Figure 10 A schematic diagram showing a second power control offset according to an embodiment of the present application;

[0090] Figure 11 A schematic diagram showing a second power control offset according to another embodiment of the present application;

[0091] Figure 12 A schematic diagram showing a second power control offset according to another embodiment of the present application;

[0092] Figure 13 A structural block diagram of a processing device in a first node device according to an embodiment of the present application is shown;

[0093] Figure 14 A structural block diagram of a processing device in a second node device according to an embodiment of the present application is shown. Specific embodiments

[0094] The technical solution of the present application will be further described in detail below with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.

[0095] Example 1

[0096] Embodiment 1 exemplifies a flowchart of a first CSI reporting configuration and a first CSI according to an embodiment of the present application, as shown in the accompanying Figure 1 figures. In the 100 shown in the accompanying Figure 1 figures, each box represents a step.

[0097] In Embodiment 1, the first node in the present application receives a first CSI reporting configuration in step 101; and sends a first CSI in step 102; the first CSI reporting configuration indicates a first CSI-RS resource set for channel measurement, the first CSI-RS resource set includes a plurality of CSI-RS resources; the first CSI reporting configuration is used to configure the reporting of CSI for a port number of P, where P is a positive integer greater than 1; the first CSI is the CSI for a port number of P configured by the first CSI reporting configuration; a first timing set includes at least one transmission timing of a CSI reference resource of at least one CSI-RS resource in the first CSI-RS resource set that is not later than the first CSI, and channel measurement based on the first timing set is used to calculate the first CSI; the ratio of the CSI-RS EPRE of a CSI-RS resource in the first timing set to the EPRE of the synchronization signal depends on whether P is greater than the port number of any CSI-RS resource in the first CSI-RS resource set.

[0098] Typically, the CSI-RS in the present application is NZP CSI-RS, and the CSI-RS EPRE in the present application is NZP CSI-RS EPRE.

[0099] Typically, any CSI-RS (Channel state information reference signal) resource in the first CSI-RS resource set is a NZP (Non-Zero Power) CSI-RS resource.

[0100] As an embodiment, the first CSI (Channel Status Information) reporting configuration is carried by higher layer signaling.

[0101] As an embodiment, the first CSI reporting configuration is carried by RRC signaling.

[0102] As an embodiment, the first CSI reporting configuration includes an IE (Information Element).

[0103] As an embodiment, the first CSI reporting configuration includes one or more IEs.

[0104] As an embodiment, the first CSI reporting configuration is the IE CSI-ReportConfig.

[0105] As an embodiment, the name of the first CSI reporting configuration includes CSI-ReportConfig.

[0106] As an embodiment, the first CSI reporting configuration indicates a CSI resource configuration, and the CSI resource configuration indicates the first CSI-RS resource set.

[0107] As a sub-embodiment of the above embodiment, the CSI resource configuration is the IE CSI-ResourceConfig.

[0108] As a sub-embodiment of the above embodiment, the first CSI reporting configuration includes a resourcesForChannelMeasurement field, and the resourcesForChannelMeasurement field included in the first CSI reporting configuration indicates the CSI resource configuration.

[0109] As a sub-embodiment of the above embodiment, the first CSI reporting configuration includes a resourcesForChannelMeasurement field, and the resourcesForChannelMeasurement field included in the first CSI reporting configuration indicates the identifier or index of the CSI resource configuration.

[0110] As an embodiment, the first CSI reporting configuration includes a resourcesForChannelMeasurement field, and the resourcesForChannelMeasurement field included in the first CSI reporting configuration indicates a CSI resource configuration, and the CSI resource configuration indicates the first CSI-RS resource set.

[0111] As an embodiment, the first CSI-RS resource set is configured by the IE NZP-CSI-RS-ResourceSet.

[0112] As an embodiment, the IE NZP-CSI-RS-ResourceSet indicates the identifier or index of each CSI-RS resource included in the first CSI-RS resource set.

[0113] As an embodiment, the identifier or index of the first CSI reporting configuration is CSI-ReportConfigId.

[0114] As an embodiment, the identifier or index of a CSI-RS resource is NZP-CSI-RS-ResourceId.

[0115] As an embodiment, the identifier or index of the first CSI-RS resource set is NZP-CSI-RS-ResourceSetId.

[0116] As an embodiment, the identifier or index of a CSI resource configuration is CSI-ResourceConfigId.

[0117] As an embodiment, for the specific definitions of the IE CSI-ReportConfig, resourcesForChannelMeasurement, and IE CSI-ResourceConfig, refer to Section 6.3.2 of 3GPP TS 38.331.

[0118] As an embodiment, the first CSI reporting configuration indicates a first CSI-RS resource set for channel measurement and a second RS resource set for interference measurement; the second RS resource set includes one or more CSI-IM (Channel State Information–Interference Measurement) resources, or the second RS resource set includes one or more CSI-IM resources and one or more NZP CSI-RS resources for interference measurement.

[0119] Typically, CSI-IM is of zero power.

[0120] As an embodiment, the first CSI reporting configuration indicates two CSI resource configurations, and the two CSI resource configurations respectively indicate a first CSI-RS resource set for channel measurement and a second RS resource set for interference measurement.

[0121] As an embodiment, the first CSI reporting configuration indicates two CSI resource configurations, and the two CSI resource configurations respectively indicate a first CSI-RS resource set for channel measurement and a second RS resource set for interference measurement; the second RS resource set includes one or more CSI-IM resources.

[0122] As a sub-embodiment of the above embodiment, the two CSI resource configurations are two IE CSI-ResourceConfig.

[0123] As a sub-embodiment of the above embodiment, the first CSI reporting configuration includes a resourcesForChannelMeasurement field and a csi-IM-ResourcesForInterference field, and the resourcesForChannelMeasurement field and the csi-IM-ResourcesForInterference field included in the first CSI reporting configuration respectively indicate the two CSI resource configurations.

[0124] As an embodiment, the first CSI reporting configuration includes a csi-IM-ResourcesForInterference field, and the csi-IM-ResourcesForInterference field included in the first CSI reporting configuration is used to indicate the second RS resource set.

[0125] As an embodiment, the first CSI reporting configuration indicates three CSI resource configurations, one of the three CSI resource configurations indicates a first CSI-RS resource set for channel measurement, and the other two CSI resource configurations in the three CSI resource configurations jointly indicate a second RS resource set for interference measurement; the second RS resource set includes one or more CSI-IM resources and one or more NZP CSI-RS resources for interference measurement.

[0126] As an example, the first CSI reporting configuration indicates three CSI resource configurations. One of the three CSI resource configurations indicates a first CSI-RS resource set for channel measurement, and the other two CSI resource configurations among the three CSI resource configurations jointly indicate a second RS resource set for interference measurement. The other two CSI resource configurations respectively indicate the CSI-IM resources included in the second RS resource set, and the NZP CSI-RS resources for interference measurement included in the second RS resource set.

[0127] As a sub-example of the above example, the three CSI resource configurations are three IE CSI-ResourceConfig.

[0128] As a sub-example of the above example, the first CSI reporting configuration includes a resourcesForChannelMeasurement field, a csi-IM-ResourcesForInterference field, and a nzp-CSI-RS-ResourcesForInterference field. The resourcesForChannelMeasurement field, the csi-IM-ResourcesForInterference field, and the nzp-CSI-RS-ResourcesForInterference field included in the first CSI reporting configuration respectively indicate the three CSI resource configurations.

[0129] As an example, the first CSI reporting configuration includes a csi-IM-ResourcesForInterference field and a nzp-CSI-RS-ResourcesForInterference field. The csi-IM-ResourcesForInterference field and the nzp-CSI-RS-ResourcesForInterference field included in the first CSI reporting configuration jointly indicate the second RS resource set.

[0130] For the specific definitions of IE CSI-ReportConfig, resourcesForChannelMeasurement, csi-IM-ResourcesForInterference, nzp-CSI-RS-ResourcesForInterference, and IE CSI-ResourceConfig, refer to Section 6.3.2 of 3GPP TS 38.331.

[0131] As an embodiment, the number of ports of a CSI-RS resource in the first CSI-RS resource set is a positive integer.

[0132] As an embodiment, the number of ports of a CSI-RS resource in the first CSI-RS resource set is a positive integer not greater than 32.

[0133] As an embodiment, the number of ports of a CSI-RS resource in the first CSI-RS resource set is a positive integer not greater than the first maximum integer.

[0134] As a sub-embodiment of the above embodiment, the first maximum integer is 32.

[0135] As a sub-embodiment of the above embodiment, the first maximum integer is 64.

[0136] As a sub-embodiment of the above embodiment, the first maximum integer is less than 128.

[0137] As a sub-embodiment of the above embodiment, the first maximum integer is the maximum number of ports of the CSI-RS resources supported in 3GPP Release 18.

[0138] As an embodiment, when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first CSI reporting configuration indicates P.

[0139] As an embodiment, P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, or P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set.

[0140] As an embodiment, P is equal to the number of ports of any CSI-RS resource in the first CSI-RS resource set, or P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set.

[0141] As an embodiment, P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, or the first CSI reporting configuration indicates P, and P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set.

[0142] As an example, P is equal to the number of ports of any CSI-RS resource in the first CSI-RS resource set, or the first CSI reporting configuration indicates P, and P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set.

[0143] As an example, P depends on the first CSI reporting configuration.

[0144] As an example, the first CSI reporting configuration indicates P.

[0145] As an example, the first CSI reporting configuration explicitly or implicitly indicates P.

[0146] As an example, whether P depends on whether the first CSI reporting configuration includes a first information block.

[0147] As an example, whether the first CSI reporting configuration includes a first information block is used to determine whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set; when the first CSI reporting configuration includes the first information block, P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set; when the first CSI reporting configuration does not include the first information block, P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set.

[0148] As an example, whether the first CSI reporting configuration includes a first information block is used to determine the value range of P; when the first CSI reporting configuration includes the first information block, the value range of P is a first value range, and the first value range includes one or more positive integers; when the first CSI reporting configuration does not include the first information block, the value range of P is a second value range, and the second value range includes one or more positive integers; the largest integer in the first value range is greater than the largest integer in the second value range.

[0149] As an example, the maximum value of P is greater than the maximum number of ports of the CSI-RS resources supported in 3GPP Release 18.

[0150] As an example, the maximum value of P is not less than the maximum number of ports of the CSI-RS resources supported in 3GPP Release 19.

[0151] As an example, the maximum value of P is greater than 32.

[0152] As an example, the maximum value of P is greater than 64.

[0153] As an embodiment, the maximum value of P is equal to 128.

[0154] As an embodiment, the maximum value of P is greater than 128.

[0155] As an embodiment, whether the first CSI reporting configuration includes a first information block is used to determine whether the maximum value of P is greater than a first maximum integer, where the first maximum integer is a positive integer greater than 1; when the first CSI reporting configuration includes the first information block, the maximum value of P is greater than the first maximum integer; when the first CSI reporting configuration does not include the first information block, the maximum value of P is equal to the first maximum integer.

[0156] As a sub - embodiment of the above embodiment, the first maximum integer is 32.

[0157] As a sub - embodiment of the above embodiment, the first maximum integer is 64.

[0158] As a sub - embodiment of the above embodiment, the first maximum integer is less than 128.

[0159] As a sub - embodiment of the above embodiment, the first maximum integer is the maximum number of ports of the CSI - RS resources supported in 3GPP Release 18.

[0160] As a sub - embodiment of the above embodiment, when the first CSI reporting configuration includes the first information block, the maximum value of P is equal to or greater than 128.

[0161] As an embodiment, the first CSI reporting configuration includes a first information block, and P depends on the value of the first information block.

[0162] As an embodiment, P depending on the value of the first information block includes: P is equal to the value of the first information block.

[0163] As an embodiment, P depending on the value of the first information block includes: whether P is greater than the number of ports of any CSI - RS resource in the first CSI - RS resource set depends on the value of the first information block; when the value of the first information block is equal to a first candidate value, P is greater than the number of ports of any CSI - RS resource in the first CSI - RS resource set; when the value of the first information block is equal to a second candidate value, P is equal to the number of ports of a CSI - RS resource in the first CSI - RS resource set.

[0164] As an example, the value of P depending on the first information block includes: the value range of P depends on the value of the first information block; when the value of the first information block is equal to the first candidate value, the value range of P is the first value range, and the first value range includes one or more positive integers; when the value of the first information block is equal to the second candidate value, the value range of P is the second value range, and the second value range includes one or more positive integers; the largest integer in the first value range is greater than the largest integer in the second value range.

[0165] As an example, the value of P depending on the first information block includes: whether the maximum value of P is greater than 32 depends on the value of the first information block; when the value of the first information block is equal to the first candidate value, the maximum value of P is greater than the first maximum integer; when the value of the first information block is equal to the second candidate value, the maximum value of P is equal to the first maximum integer.

[0166] As a sub - example of the above example, the first maximum integer is 32.

[0167] As a sub - example of the above example, the first maximum integer is 64.

[0168] As a sub - example of the above example, the first maximum integer is less than 128.

[0169] As a sub - example of the above example, when the value of the first information block is equal to the first candidate value, the maximum value of P is equal to or greater than 128.

[0170] As an example, the first information block includes a field in the first CSI reporting configuration.

[0171] As an example, the first information block includes one or more fields in the first CSI reporting configuration.

[0172] As an example, at least one field in the first CSI reporting configuration indicates the first information block.

[0173] As an example, the IE CSI - ResourceConfig indicating the first CSI - RS resource set includes the first information block.

[0174] The first CSI reporting configuration indicates a CSI resource configuration, the CSI resource configuration indicates the first CSI - RS resource set, and the CSI resource configuration includes the first information block.

[0175] As an example, the IE NZP-CSI-RS-ResourceSet used to configure the first CSI-RS resource set includes the first information block.

[0176] Example 2

[0177] Embodiment 2 exemplifies a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the appendix Figure 2 as follows.

[0178] The appendix Figure 2 illustrates the network architecture 200 of LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), and future 5G systems. The network architectures 200 of LTE, LTE-A, and future 5G systems are referred to as EPS (Evolved Packet System) 200. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable term. The 5GS / EPS 200 may include one or more UEs (User Equipment) 201, a UE 241 that communicates with the UE 201 via sidelink, an NG-RAN (Next Generation Radio Access Network) 202, a 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, an HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and an Internet service 230. The 5GS / EPS 200 may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the appendix Figure 2As shown, the 5GS / EPS 200 provides packet-switched services. However, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks that provide circuit-switched services. The NG-RAN 202 includes an NR (New Radio) Node B (gNB) 203 and other gNBs 204. The gNB 203 provides user and control plane protocol termination towards the UE 201. The gNB 203 can be connected to other gNBs 204 via the Xn interface (e.g., backhaul). The gNB 203 can also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmission and reception point), or some other suitable term. The gNB 203 provides an access point to the 5GC / EPC 210 for the UE 201. Examples of the UE 201 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional device. Those skilled in the art may also refer to the UE 201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term. The gNB 203 is connected to the 5GC / EPC 210 via the S1 / NG interface. The 5GC / EPC 210 includes a MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MMEs / AMFs / SMFs 214, an S-GW (Service Gateway) / UPF (User Plane Function) 212, and a P-GW (Packet Date Network Gateway) / UPF 213. The MME / AMF / SMF 211 is a control node that processes the signaling between the UE 201 and the 5GC / EPC 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management.All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet service 230. The Internet service 230 includes carrier-corresponding Internet protocol services, which may specifically include the Internet, intranet, IMS (IP Multimedia Subsystem), and packet switching services.

[0179] As an example, the first node in the present application includes the UE 201.

[0180] As an example, the first node in the present application includes the UE 241.

[0181] As an example, the second node in the present application includes the gNB 203.

[0182] Example 3

[0183] Example 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to an embodiment of the present application, as shown in the appendix Figure 3 as shown.

[0184] Example 3 shows a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to the present application, as shown in the appendix Figure 3 as shown. Figure 3 It is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300. Figure 3The radio protocol architecture of the control plane 300 for the first communication node device (UE, gNB or RSU in V2X) and the second communication node device (gNB, UE or RSU in V2X), or between two UEs, is shown in three layers: layer 1, layer 2, and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. Layer 1 will be referred to as PHY301 in this document. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device, or between two UEs. Layer 2 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, and these sublayers terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides handover support for the first communication node device between the second communication node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) of the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). For the first communication node device and the second communication node device in the user plane 350, the radio protocol architecture for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 is generally the same as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sub-layer 356. The SDAP sub-layer 356 is responsible for the mapping between QoS flows and data radio bearers (DRBs) to support service diversity. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

[0185] As an example, the Figure 3 radio protocol architecture in

[0186] As an example, the Figure 3 radio protocol architecture in

[0187] As an example, the first CSI reporting configuration is generated in the RRC sub-layer 306.

[0188] As an example, the first CSI is generated in the PHY301.

[0189] As an example, the first CSI is generated in the PHY351.

[0190] As an example, the CSI-RS in the first CSI-RS resource set is generated in the PHY301.

[0191] As an example, the CSI-RS in the first CSI-RS resource set is generated in the PHY351.

[0192] As an example, the higher layer in this application refers to the layer above the physical layer.

[0193] As an example, the higher layer in this application refers to the RRC layer.

[0194] As an example, the higher layer in this application refers to the MAC layer.

[0195] As an example, the higher layer in this application includes at least one of the RRC layer or the MAC layer.

[0196] Example 4

[0197] Example 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown inFigure 4 As shown. Attached Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 that communicate with each other in an access network.

[0198] The first communication device 410 includes a controller / processor 475, a memory 476, a receiving processor 470, a transmitting processor 416, a multi-antenna receiving processor 472, a multi-antenna transmitting processor 471, a transmitter / receiver 418, and an antenna 420.

[0199] The second communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0200] In the transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functions of the L2 layer. In the DL, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication device 450. The transmitting processor 416 and the multi-antenna transmitting processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmitting processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, and constellation mapping based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmitting processor 471 performs digital space precoding on the encoded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more parallel streams. The transmitting processor 416 then maps each parallel stream to subcarriers, multiplexes the modulated symbols with reference signals (e.g., pilots) in the time domain and / or frequency domain, and then uses the inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. Subsequently, the multi-antenna transmitting processor 471 performs transmission analog precoding / beamforming operations on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmitting processor 471 into a radio frequency stream, and then provides it to different antennas 420.

[0201] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives signals via its respective antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream which is provided to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 perform various signal processing functions of the L1 layer. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receivers 454. The receive processor 456 uses the fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receive processor 456, where the reference signal will be used for channel estimation, and the data signal recovers any parallel streams destined for the second communication device 450 after multi-antenna detection in the multi-antenna receive processor 458. The symbols on each parallel stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. Subsequently, the receive processor 456 decodes and de-interleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. Subsequently, the upper layer data and control signals are provided to the controller / processor 459. The controller / processor 459 performs the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 may be referred to as a computer-readable medium. In the DL (DownLink, downlink), the controller / processor 459 provides demultiplexing between the transmission and the logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the core network. Subsequently, the upper layer data packets are provided to all protocol layers above the L2 layer. Various control signals may also be provided to the L3 for L3 processing. The controller / processor 459 is also responsible for error detection using the acknowledgement (ACK) and / or negative acknowledgement (NACK) protocols to support HARQ operations.

[0202] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide an upper layer data packet to a controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission function at the first communication device 410 described in DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communication device 410, and implements L2 layer functions for the user plane and the control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410. A transmit processor 468 performs modulation mapping and channel coding processing. A multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Subsequently, the transmit processor 468 modulates the generated parallel streams into a multi-carrier / single-carrier symbol stream, and after passing through an analog precoding / beamforming operation in the multi-antenna transmit processor 457, provides it to different antennas 452 via a transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and then provides it to the antenna 452.

[0203] In the transmission from the second communication device 450 to the first communication device 410, the functions at the first communication device 410 are similar to the receiving functions at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 jointly implement the functions of the L1 layer. A controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as a computer-readable medium. The controller / processor 475 provides demultiplexing between the transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the upper layer data packet from the second communication device 450. The upper layer data packet from the controller / processor 475 may be provided to the core network. The controller / processor 475 is also responsible for error detection using the ACK and / or NACK protocols to support HARQ operations.

[0204] As an example, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 450 is at least configured to: receive a first CSI reporting configuration, the first CSI reporting configuration indicating a first set of CSI-RS resources for channel measurement, the first set of CSI-RS resources including a plurality of CSI-RS resources; the first CSI reporting configuration is used to configure the reporting of CSI for a port number of P, where P is a positive integer greater than 1; transmit a first CSI; the first CSI is the CSI for a port number of P configured by the first CSI reporting configuration; wherein, a first set of timing includes at least one transmission timing of at least one CSI-RS resource in the first set of CSI-RS resources that is no later than the CSI reference resource of the first CSI, and the channel measurement based on the first set of timing is used to calculate the first CSI; the ratio of the CSI-RS EPRE of a CSI-RS resource in the first set of timing to the synchronization signal EPRE depends on whether P is greater than the port number of any CSI-RS resource in the first set of CSI-RS resources.

[0205] As an example, the second communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: receiving a first CSI reporting configuration, the first CSI reporting configuration indicating a first set of CSI-RS resources for channel measurement, the first set of CSI-RS resources including a plurality of CSI-RS resources; the first CSI reporting configuration is used to configure the reporting of CSI for a port number of P, where P is a positive integer greater than 1; transmit a first CSI; the first CSI is the CSI for a port number of P configured by the first CSI reporting configuration; wherein, a first set of timing includes at least one transmission timing of at least one CSI-RS resource in the first set of CSI-RS resources that is no later than the CSI reference resource of the first CSI, and the channel measurement based on the first set of timing is used to calculate the first CSI; the ratio of the CSI-RS EPRE of a CSI-RS resource in the first set of timing to the synchronization signal EPRE depends on whether P is greater than the port number of any CSI-RS resource in the first set of CSI-RS resources.

[0206] As an example, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The first communication device 410 is at least configured to: send a first CSI reporting configuration, the first CSI reporting configuration indicating a first CSI-RS resource set for channel measurement, the first CSI-RS resource set including a plurality of CSI-RS resources; the first CSI reporting configuration is used to configure the reporting of CSI for a port number of P, where P is a positive integer greater than 1; receive a first CSI; the first CSI is the CSI for a port number of P configured by the first CSI reporting configuration; wherein, a first timing set includes at least one transmission timing of a CSI reference resource of at least one CSI-RS resource in the first CSI-RS resource set that is not later than the first CSI, and channel measurement based on the first timing set is used to calculate the first CSI; the ratio of the CSI-RS EPRE of a CSI-RS resource in the first timing set to the synchronization signal EPRE depends on whether P is greater than the port number of any CSI-RS resource in the first CSI-RS resource set.

[0207] As an example, the first communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: sending a first CSI reporting configuration, the first CSI reporting configuration indicating a first CSI-RS resource set for channel measurement, the first CSI-RS resource set including a plurality of CSI-RS resources; the first CSI reporting configuration is used to configure the reporting of CSI for a port number of P, where P is a positive integer greater than 1; receive a first CSI; the first CSI is the CSI for a port number of P configured by the first CSI reporting configuration; wherein, a first timing set includes at least one transmission timing of a CSI reference resource of at least one CSI-RS resource in the first CSI-RS resource set that is not later than the first CSI, and channel measurement based on the first timing set is used to calculate the first CSI; the ratio of the CSI-RS EPRE of a CSI-RS resource in the first timing set to the synchronization signal EPRE depends on whether P is greater than the port number of any CSI-RS resource in the first CSI-RS resource set.

[0208] As an example, the first node in the present application includes the second communication device 450.

[0209] As an example, the second node in the present application includes the first communication device 410.

[0210] As an example, at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, the data source 467} is used to receive the first CSI reporting configuration in the present application; at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, the memory 476} is used to send the first CSI reporting configuration in the present application.

[0211] As an example, at least one of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the memory 460} is used to send the first CSI in the present application; at least one of {the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller / processor 475, the memory 476} is used to receive the first CSI in the present application.

[0212] As an example, at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, the data source 467} is used to receive the CSI-RS in the first CSI-RS resource set in the present application; at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, the memory 476} is used to send the CSI-RS in the first CSI-RS resource set in the present application.

[0213] As an example, at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, the data source 467} is used to receive the reference signal in the second RS resource set in the present application; at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, the memory 476} is used to send the reference signal in the second RS resource set in the present application.

[0214] Example 5

[0215] Example 5 exemplifies a flowchart of wireless transmission according to an embodiment of the present application, as shown in the appendix Figure 5 In the appendix Figure 5 The first node U1 and the second node N2 are respectively two communication nodes transmitting through the air interface.

[0216] For First node U1 In step S5101, receive the first CSI reporting configuration; in step S5102, send the first CSI;

[0217] For Second node N2 In step S5201, send the first CSI reporting configuration; in step S5202, receive the first CSI.

[0218] In Example 5, the first CSI reporting configuration indicates a first CSI-RS resource set for channel measurement, the first CSI-RS resource set includes multiple CSI-RS resources; the first CSI reporting configuration is used to configure the reporting of CSI for a port number of P, where P is a positive integer greater than 1; the first CSI is the CSI for a port number of P configured by the first CSI reporting configuration; the first timing set includes at least one transmission timing of the CSI reference resource of at least one CSI-RS resource in the first CSI-RS resource set that is not later than the first CSI, and the channel measurement based on the first timing set is used to calculate the first CSI; the ratio of the CSI-RS EPRE of one CSI-RS resource in the first timing set to the synchronization signal EPRE depends on whether P is greater than the port number of any CSI-RS resource in the first CSI-RS resource set.

[0219] Typically, the first node receives CSI-RS in some and all of the CSI-RS resources in the first CSI-RS resource set.

[0220] Typically, the second node transmits CSI-RS in some and all of the CSI-RS resources in the first CSI-RS resource set.

[0221] Typically, the first node receives reference signals in some and all of the RS resources in the second RS resource set.

[0222] Typically, the second node transmits reference signals in some and all of the RS resources in the second RS resource set.

[0223] Typically, the first receiver in the present application receives CSI-RS in some and all of the CSI-RS resources in the first CSI-RS resource set.

[0224] Typically, the second transmitter in the present application transmits CSI-RS in some or all of the CSI-RS resources in the first CSI-RS resource set.

[0225] Typically, the first receiver in the present application receives reference signals in some or all of the RS resources in the second RS resource set.

[0226] Typically, the second transmitter in the present application transmits reference signals in some or all of the RS resources in the second RS resource set.

[0227] As an embodiment, the first CSI is an aperiodic CSI configured by the first CSI reporting configuration.

[0228] As an embodiment, the first CSI is a periodic CSI configured by the first CSI reporting configuration.

[0229] As an embodiment, the first CSI is a semi-persistent CSI configured by the first CSI reporting configuration.

[0230] As an embodiment, the first CSI is transmitted on a physical channel.

[0231] As an embodiment, the first CSI is transmitted on a PUSCH (Physical Uplink Shared Channel).

[0232] As an embodiment, the first CSI is transmitted on a PUCCH (Physical Uplink Control Channel).

[0233] As an embodiment, the first CSI is a semi-persistent (SP) CSI, and the first CSI is activated by a MAC CE.

[0234] As an embodiment, the first CSI is a semi-persistent CSI, and the first CSI is activated by a MAC CE. The name of the MAC CE used to activate the first CSI includes SP CSI reporting on PUCCH Activation MAC CE.

[0235] As an example, the first CSI is an aperiodic CSI, and the first CSI is triggered by a DCI (Downlink Control Information), where the DCI includes a CSI request field, and the CSI request field of the DCI is used to indicate a trigger state, and the trigger state indicates the first CSI reporting configuration.

[0236] As an example, the first CSI is a semi-persistent CSI, and when the first node receives an activation command, the first node sends the first CSI on the PUCCH.

[0237] As a sub-example of the above example, the activation command is a MAC CE.

[0238] As a sub-example of the above example, the activation command includes a SP CSI reporting on PUCCH Activation MAC CE.

[0239] As an example, the first CSI is a semi-persistent CSI, and when the first node is triggered by a DCI, the first node sends the first CSI on the PUSCH.

[0240] As an example, the first CSI reporting configuration includes a reportConfigType (reporting configuration type) field; the reportConfigType field in the first CSI reporting configuration indicates which one of periodic, semi-persistent on PUSCH, semi-persistent on PUCCH, or aperiodic the first CSI is.

[0241] As an example, the first CSI reporting configuration also indicates the reporting quantity included in the first CSI.

[0242] As an example, the first CSI reporting configuration includes a reportQuantity field, and the field in the first CSI reporting configuration indicates the reporting quantity included in the first CSI.

[0243] As an example, the first CSI includes at least CQI (Channel Quality Indicator) among CQI (Channel Quality Indicator), PMI (Precoding Matrix Indicator), CRI (CSI-RS Resource Indicator), Layer Indicator (LI), and RI (Rank Indicator).

[0244] As an example, for the CSI with the number of ports being P, it is calculated based on the channel measurements of P CSI-RS ports.

[0245] As an example, for the CSI with the number of ports being P, it is calculated based on the channel parameter matrix obtained from the channel measurements of P CSI-RS ports.

[0246] As an example, for the CSI with the number of ports being P, it at least includes PMI and CQI for the number of ports being P.

[0247] As an example, for the CSI with the number of ports being P, it at least includes PMI and CQI for the number of ports being P, and the PMI for the number of ports being P indicates the precoding matrix in the codebook with the number of ports being P.

[0248] As an example, for the CSI with the number of ports being P, it at least includes PMI and CQI for the number of ports being P, and the PMI for the number of ports being P indicates the precoding matrix with the number of rows equal to P.

[0249] As an example, for the CSI with the number of ports being P, it at least includes RI, PMI, and CQI for the number of ports being P, and the rank indicated by RI in the CSI for the number of ports being P is a positive integer not greater than P.

[0250] As an example, for the CSI with the number of ports being P, it includes PMI and CQI for the number of ports being P, and the CQI in the first CSI is calculated on the condition of at least the PMI in the first CSI.

[0251] As an example, for the CSI with the number of ports being P, it includes PMI for the number of ports being P, and the PMI for the number of ports being P indicates the precoding matrix in the codebook with the number of ports being P.

[0252] As an example, for the CSI with the number of ports being P, it includes PMI for the number of ports being P, and the PMI for the number of ports being P indicates the precoding matrix with the number of rows equal to P.

[0253] Under the limitations of the above method or embodiment, how to calculate the CSI for a port number of P is determined by the manufacturer of the first node itself, or is implementation-related. A typical but non-limiting implementation is described below:

[0254] The CSI for a port number of P includes the PMI and CQI for a port number of P; the first node measures for P CSI-RS ports to obtain the channel parameter matrix H r×P ; perform power adjustment on the channel parameter matrix H r×P The adjusted channel parameter matrix is where 1 is the assumed ratio of the PDSCH (Physical downlink shared channel) EPRE to the NZP CSI-RS EPRE. Under the condition of using the precoding matrix W P×l The precoded channel parameter matrix is where the PMI for a port number of P indicates W P×l , l is the number of ranks or layers. In one case, l is a positive integer not greater than P. In another case, the precoding matrix is the identity matrix, and at this time P = l; use, for example, the SINR (Signal Interference Noise Ratio), EESM (Exponential Effective SINR Mapping), or RBIR (Received Block mean mutual Information Ratio) criterion to calculate the equivalent channel capacity of H r×P ·W P×l Then determine the CQI in the CSI for a port number of P from the equivalent channel capacity by means such as looking up a table.

[0255] Under the limitations of the above method or embodiment, how to calculate the CSI for a port number of P is determined by the manufacturer of the first node itself, or is implementation-related. A typical but non-limiting implementation is described below:

[0256] The first node measures for P CSI-RS ports to obtain the channel parameter matrix H r×P ; perform power adjustment on the channel parameter matrix H r×P The adjusted channel parameter matrix is where Q is the assumed ratio of the PDSCH EPRE to the NZP CSI-RS EPRE. Under the condition of using the precoding matrix WP×l Under the condition of, the pre-coded channel parameter matrix is where l is the number of ranks or layers. In one case, l is a positive integer not greater than P. In another case, the pre-coding matrix is the identity matrix, and at this time P = l; for example, the equivalent channel capacity of H r×P ·W P×l is calculated using criteria such as SINR (Signal Interference Noise Ratio), EESM (Exponential Effective SINR Mapping), or RBIR (Received Block mean mutual Information Ratio), and then the CQI in the CSI for the number of ports P is determined from the equivalent channel capacity by looking up a table or other means.

[0257] As an example, the first CSI includes at least CQI.

[0258] As an example, the first CSI includes at least RI and CQI.

[0259] As an example, the first CSI includes at least RI, PMI, and CQI.

[0260] As an example, the first CSI includes at least RI, LI, PMI, and CQI.

[0261] As an example, the first CSI includes at least a first resource indication and CQI; the first resource indication indicates one or more CSI-RS resources in the first CSI-RS resource set, or the first resource indication includes one or more CRIs.

[0262] As an example, the first CSI includes at least a first resource indication, RI, and CQI; the first resource indication indicates one or more CSI-RS resources in the first CSI-RS resource set, or the first resource indication includes one or more CRIs.

[0263] As an example, the first CSI includes at least a first resource indication, RI, PMI, and CQI; the first resource indication indicates one or more CSI-RS resources in the first CSI-RS resource set, or the first resource indication includes one or more CRIs.

[0264] As an example, the first CSI includes a first resource indicator, RI, LI, PMI, and CQI; the first resource indicator indicates one or more CSI-RS resources in the first CSI-RS resource set, or the first resource indicator includes one or more CRI.

[0265] As an example, the first CSI includes at least RI and CQI. The rank indicated by the RI in the first CSI is a positive integer not greater than P, and the CQI in the first CSI is calculated conditioned on at least the RI in the first CSI.

[0266] As an example, the first CSI includes at least RI, PMI, and CQI. The CQI in the first CSI is calculated conditioned on at least the RI and the PMI in the first CSI.

[0267] As an example, the first CSI includes at least RI, LI, PMI, and CQI. The CQI in the first CSI is calculated conditioned on at least the RI, the LI, and the PMI in the first CSI.

[0268] As an example, the first CSI includes at least a first resource indicator and CQI; the first resource indicator indicates one or more CSI-RS resources in the first CSI-RS resource set, or the first resource indicator includes one or more CRI; the CQI in the first CSI is calculated conditioned on at least the first resource indicator in the first CSI.

[0269] As an example, the first CSI includes at least a first resource indicator, RI, and CQI; the first resource indicator indicates one or more CSI-RS resources in the first CSI-RS resource set, or the first resource indicator includes one or more CRI; the CQI in the first CSI is calculated conditioned on at least the first resource indicator and the RI in the first CSI.

[0270] As an example, the first CSI includes at least a first resource indicator, RI, PMI, and CQI; the first resource indicator indicates one or more CSI-RS resources in the first CSI-RS resource set, or the first resource indicator includes one or more CRIs; the CQI in the first CSI is calculated conditioned on at least the first resource indicator, the RI, and the PMI in the first CSI.

[0271] As an example, the first CSI includes a first resource indicator, RI, LI, PMI, and CQI; the first resource indicator indicates one or more CSI-RS resources in the first CSI-RS resource set, or the first resource indicator includes one or more CRIs; the CQI in the first CSI is calculated conditioned on at least the first resource indicator, the RI, the LI, and the PMI in the first CSI.

[0272] As an example, at least one CSI-RS resource in the first CSI-RS resource set is used for channel measurement of the first CSI.

[0273] As an example, at least one CSI-RS resource in the first CSI-RS resource set is used for channel measurement of the first CSI, and at least one RS resource in the second RS resource set is used for interference measurement of the first CSI.

[0274] As an example, the first timing set includes at least one transmission timing of some or all of the CSI-RS resources in the first CSI-RS resource set that is no later than the CSI reference resource of the first CSI, and the channel measurement based on the first timing set is used to calculate the first CSI.

[0275] As an example, the first timing set includes at least one transmission timing of at least one CSI-RS resource in the first CSI-RS resource set that is no later than the CSI reference resource of the first CSI, and the channel measurement based on the first timing set is used to calculate the first CSI; the second timing set includes at least one transmission timing of at least one RS resource in the second RS resource set that is no later than the CSI reference resource of the first CSI, and the interference measurement based on the second timing set is used to calculate the first CSI.

[0276] As an example, the first set of timing instants includes at least one transmission timing instant of some or all of the CSI-RS resources in the first CSI-RS resource set that is no later than the CSI reference resource of the first CSI, and the channel measurement based on the first set of timing instants is used to calculate the first CSI; the second set of timing instants includes at least one transmission timing instant of some or all of the RS resources in the second RS resource set that is no later than the CSI reference resource of the first CSI, and the interference measurement based on the second set of timing instants is used to calculate the first CSI.

[0277] As an example, a CSI-RS resource belongs to multiple time slots in the time domain, and a part within one time slot is referred to as a transmission timing instant of the one CSI-RS resource.

[0278] As an example, a transmission timing instant of a CSI-RS resource is a transmission of the one CSI-RS resource.

[0279] As an example, an RS resource belongs to multiple time slots in the time domain, and a part within one time slot is referred to as a transmission timing instant of the one RS resource.

[0280] As an example, a transmission timing instant of an RS resource is a transmission of the one RS resource.

[0281] As an example, the CSI reference resource of the first CSI is the frequency domain resource targeted by the first CSI in the frequency domain.

[0282] As an example, the CSI reference resource of the first CSI is a subband or wideband targeted by the first CSI in the frequency domain.

[0283] As an example, the CSI reference resource of the first CSI belongs to the same BWP (Bandwidth Part) as the frequency domain resource targeted by the first CSI in the frequency domain.

[0284] As an example, the CSI reference resource of the first CSI is the first downlink time slot in the time domain, and the first downlink time slot depends on the second uplink time slot, and the second uplink time slot is the uplink time slot for transmitting the first CSI.

[0285] As an example, the CSI reference resource of the first CSI is the first downlink time slot in the time domain.

[0286] As an example, the CSI reference resource of the first CSI is a downlink slot.

[0287] As an embodiment, the CSI reference resource of the first CSI depends on a second uplink time slot.

[0288] As an embodiment, the first downlink time slot depends on a second uplink time slot.

[0289] As an embodiment, the second uplink time slot is uplink time slot n'.

[0290] As an embodiment, the second uplink time slot is the uplink time slot for transmitting the first CSI.

[0291] As an embodiment, the second uplink time slot is the uplink time slot where the PUCCH carrying the first CSI is located.

[0292] As an embodiment, the second uplink time slot is the uplink time slot where the PUSCH carrying the first CSI is located.

[0293] As an embodiment, the description of the CSI reference resource of the first CSI refers to Section 5.2.2.5 of 3GPP TS38.214.

[0294] As an embodiment, the first downlink time slot is downlink time slot where K offset is configured by higher layer signaling, is the subcarrier spacing configuration of the K offset .

[0295] As an embodiment, n CSI_ref is a minimum value not less than .

[0296] As an embodiment, n CSI_ref is a minimum value not less than .

[0297] As an embodiment, the n is the sum of a first component and a second component.

[0298] As an embodiment, the first component is an integer.

[0299] As an embodiment, the first component is where μ DL and μ UL are the subcarrier spacing configurations for downlink and uplink respectively, denotes the floor operation on x.

[0300] As an embodiment, the second component is an integer.

[0301] As an example, the second component is where and μ offset is configured by the higher layer parameter ca-SlotOffset. For a detailed introduction, refer to Section 4.5 of 3GPP TS38.211.

[0302] As an example, the n is

[0303] As an example, the first downlink time slot is the downlink time slot

[0304] As an example, the unit of the ratio of the CSI-RS EPRE to the synchronization signal EPRE is dB (decibel).

[0305] As an example, the ratio of the CSI-RS EPRE to the synchronization signal EPRE is a real number.

[0306] As an example, the ratio of the CSI-RS EPRE to the synchronization signal EPRE is an integer, and the unit of the ratio of the CSI-RS EPRE to the synchronization signal EPRE is dB.

[0307] As an example, the value range of the ratio of the CSI-RS EPRE to the synchronization signal EPRE includes [-8, 15] dB and the step size is 1 dB.

[0308] As an example, the ratio of the CSI-RS EPRE to the synchronization signal EPRE of a CSI-RS resource is the assumed ratio of the CSI-RS EPRE to the synchronization signal EPRE of the CSI-RS resource.

[0309] As an example, the ratio of the CSI-RS EPRE to the synchronization signal EPRE of a CSI-RS resource is the assumed ratio of the CSI-RS EPRE to the SS / PBCH block (Synchronization signal / Physical broadcast channel block) EPRE of the CSI-RS resource.

[0310] As an example, the synchronization signal EPRE is the SS (Synchronization signal) EPRE.

[0311] As an example, the synchronization signal EPRE is the EPRE of the SS / PBCH block (Synchronization signal / Physical broadcast channel block).

[0312] As an example, the ratio of the CSI-RS EPRE to the synchronization signal EPRE is powerControlOffsetSS.

[0313] For the specific definition of powerControlOffsetSS, refer to Section 5.2.2.3 of 3GPP TS38.214.

[0314] Under the limitations of the above method or embodiment, the specific algorithm for calculating the first CSI is determined by the manufacturer of the first node or is implementation-dependent. The following describes a typical but non-limiting implementation:

[0315] The first node measures the channel parameter matrix H for P CSI-RS ports in the first timing set r×P ; the P CSI-RS ports are composed of the ports of one or more CSI-RS resources in the first CSI-RS resource set. The channel parameter matrix H r×P is power-adjusted, and the adjusted channel parameter matrix is where Q is the assumed ratio of the PDSCH EPRE to the NZP CSI-RS EPRE. Under the condition of using the precoding matrix W P×l the precoded channel parameter matrix is where l is the number of ranks or layers. In one case, l is a positive integer not greater than P. In another case, the precoding matrix is the identity matrix, and at this time P = l. The first CSI includes CQI, and is calculated using, for example, the SINR (Signal Interference Noise Ratio), EESM (Exponential Effective SINR Mapping), or RBIR (Received Block mean mutual Information Ratio) criterion for H r×P ·W P×lThe equivalent channel capacity, and then the CQI included in the first CSI is determined by looking up a table or the like based on the equivalent channel capacity. Generally, calculating the equivalent channel capacity requires the first node to estimate interference (including noise), and the first node can obtain the interference by measuring the RS resources in the second RS resource set in this application. Generally, the direct mapping from the equivalent channel capacity to the CQI value depends on receiver performance, or hardware-related factors such as modulation methods.

[0316] Under the limitations of the above method or embodiment, the specific algorithm for calculating the first CSI is determined by the manufacturer of the first node itself, or is implementation-related. The following describes a typical but non-limiting implementation:

[0317] The first CSI indicates the first CSI-RS resource, and the first node measures the channel parameter matrix H for P CSI-RS ports in the first timing set. r×P ; The P CSI-RS ports are composed of the ports of the first CSI-RS resource in this application, or the first CSI indicates the first CSI-RS resource group, and the P CSI-RS ports are composed of the ports of all CSI-RS resources in the first CSI-RS resource group in this application. For the channel parameter matrix H r×P Power adjustment is performed, and the adjusted channel parameter matrix is where Q is the assumed ratio of the PDSCH EPRE to the NZP CSI-RS EPRE. Under the condition of using the precoding matrix W P×l The precoded channel parameter matrix is where l is the number of ranks or layers. In one case, l is a positive integer not greater than P. In another case, the precoding matrix is the identity matrix, and at this time P = l. The first CSI includes CQI, and for example, the SINR (Signal Interference Noise Ratio), EESM (Exponential Effective SINR Mapping), or RBIR (Received Block mean mutual Information Ratio) criterion is used to calculate H r×P ·W P×lThe equivalent channel capacity, and then the CQI included in the first CSI is determined by looking up a table or other means based on the equivalent channel capacity. Generally, calculating the equivalent channel capacity requires the first node to estimate interference (including noise), and the first node can obtain interference by measuring the RS resources in the second RS resource set in this application. Generally speaking, the direct mapping from the equivalent channel capacity to the CQI value depends on receiver performance, or hardware-related factors such as modulation methods.

[0318] As an embodiment, the ratio of the CSI-RS EPRE of any CSI-RS resource in the first timing set to the synchronization signal EPRE depends on whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set.

[0319] As an embodiment, the ratio of the CSI-RS EPRE of each CSI-RS resource in some or all of the CSI-RS resources in the first timing set to the synchronization signal EPRE depends on whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set.

[0320] As an embodiment, the ratio of the CSI-RS EPRE of a CSI-RS resource in the first timing set to the synchronization signal EPRE depending on whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set includes: which value among multiple values the ratio of the CSI-RS EPRE of a CSI-RS resource in the first timing set to the synchronization signal EPRE is depends on whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set.

[0321] As an embodiment, the ratio of the CSI-RS EPRE of a CSI-RS resource in the first timing set to the synchronization signal EPRE depending on whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set includes: each CSI-RS resource in the first CSI-RS resource set is configured with two ratios of the CSI-RS EPRE to the synchronization signal EPRE; the two ratios of the CSI-RS EPRE to the synchronization signal EPRE configured for a CSI-RS resource in the first timing set are respectively applicable to the case where P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, and the case where P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set.

[0322] As an example, the ratio of the CSI-RS EPRE of a CSI-RS resource in the first set of timing instants to the synchronization signal EPRE depends on whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, and includes: whether the IE indicating the ratio of the CSI-RS EPRE of a CSI-RS resource in the first set of timing instants to the synchronization signal EPRE is an IE used to configure a CSI-RS resource depends on whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set; when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the IE indicating the ratio of the CSI-RS EPRE of a CSI-RS resource in the first set of timing instants to the synchronization signal EPRE is an IE used to configure the first CSI-RS resource, where the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, an IE indicating the ratio of the CSI-RS EPRE of a CSI-RS resource in the first set of timing instants to the synchronization signal EPRE is different from any IE used to configure a CSI-RS resource.

[0323] As an example, the ratio of the CSI-RS EPRE of a CSI-RS resource in the first set of timing instants to the synchronization signal EPRE depends on whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, and includes: whether the IE indicating the ratio of the CSI-RS EPRE of a CSI-RS resource in the first set of timing instants to the synchronization signal EPRE is an IE used to configure a CSI-RS resource depends on whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set; when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the IE indicating the ratio of the CSI-RS EPRE of a CSI-RS resource in the first set of timing instants to the synchronization signal EPRE is IE NZP-CSI-RS-Resource, and the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, an IE indicating the ratio of the CSI-RS EPRE of a CSI-RS resource in the first set of timing instants to the synchronization signal EPRE is IE CSI-ReportConfig, or, an IE indicating the ratio of the CSI-RS EPRE of a CSI-RS resource in the first set of timing instants to the synchronization signal EPRE is IE CSI-ResourceConfig, or, an IE indicating the ratio of the CSI-RS EPRE of a CSI-RS resource in the first set of timing instants to the synchronization signal EPRE is IE NZP-CSI-RS-ResourceSet.

[0324] As an example, the IE used to configure a CSI-RS resource is IE NZP-CSI-RS-Resource.

[0325] Example 6

[0326] Embodiment 6 exemplifies a schematic diagram of the relationship between the first CSI and P according to an embodiment of the present application; as shown in the appendix Figure 6 shown. In the appendix Figure 6 CSI-RS resource #1, ……, CSI-RS resource #J are multiple CSI-RS resources in the first CSI-RS resource group.

[0327] In Embodiment 6, when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the first CSI indicates the first CSI-RS resource, where the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set, and the first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first CSI indicates the first CSI-RS resource group, where the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P, and the first timing set includes at least one transmission timing of the CSI reference resource of each CSI-RS resource in the first CSI-RS resource group that is not later than the first CSI.

[0328] As an embodiment, the first CSI is calculated based on channel measurements of P CSI-RS ports in the first timing set; when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the P CSI-RS ports are all ports of the first CSI-RS resource, the first CSI indicates the first CSI-RS resource, where the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set, and the first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first CSI indicates the first CSI-RS resource group, the P CSI-RS ports are composed of all ports of all CSI-RS resources in the first CSI-RS resource group, the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P, and the first timing set includes at least one transmission timing of the CSI reference resource of each CSI-RS resource in the first CSI-RS resource group that is not later than the first CSI.

[0329] As an example, when P is equal to the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first CSI indicates a first CSI-RS resource, where the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set, and the first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first CSI indicates a first CSI-RS resource group, where the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, and the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P, and the first timing set includes at least one transmission timing of the CSI reference resource of each CSI-RS resource in the first CSI-RS resource group that is not later than the first CSI.

[0330] As an example, the first CSI includes a first resource indication; when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the first resource indication indicates a first CSI-RS resource, where the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set, and the first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first resource indication indicates a first CSI-RS resource group, where the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, and the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P, and the first timing set includes at least one transmission timing of the CSI reference resource of each CSI-RS resource in the first CSI-RS resource group that is not later than the first CSI.

[0331] As an example, that the first resource indication indicates a first CSI-RS resource includes: the first resource indication is a CRI that indicates a first CSI-RS resource.

[0332] As an example, that the first resource indication indicates a first CSI-RS resource group includes: the first resource indication indicates an index or identifier of the first CSI-RS resource group.

[0333] As an example, the first resource indication indicating the first CSI-RS resource group includes: the first CSI-RS resource set includes multiple CSI-RS resource groups, the first CSI-RS resource group is one of the multiple CSI-RS resource groups, and the first resource indication indicates an index or an identifier of the first CSI-RS resource group.

[0334] In the above method, what the first resource indication indicates is the index or identifier of the CSI-RS resource group, with a simple design and reduced indication overhead.

[0335] As an example, the first resource indication indicating the first CSI-RS resource group includes: the first resource indication includes multiple CRIs, and the multiple CRIs respectively indicate multiple CSI-RS resources in the first CSI-RS resource group.

[0336] In the above method, the first resource indication includes multiple CRIs, adopting the method of indicating CSI-RS resources through CRIs in existing standards, and having good compatibility with the standards.

[0337] Under the limitations of the above method or example, how to calculate the first CSI is determined by the manufacturer of the first node itself, or is implementation-related. The following describes a typical but non-limiting implementation:

[0338] The first node measures the channel parameter matrix H for P CSI-RS ports in the first timing set r×P ; when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the P CSI-RS ports are all ports of the first CSI-RS resource, the first CSI indicates the first CSI-RS resource, and the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first CSI indicates the first CSI-RS resource group, the P CSI-RS ports are composed of all ports of all CSI-RS resources in the first CSI-RS resource group, the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, and the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P. For the channel parameter matrix H r×P perform power adjustment, and the adjusted channel parameter matrix is where Q is the assumed ratio of the PDSCH EPRE to the NZP CSI-RS EPRE. For the adopted precoding matrix WP×l Under the condition that, the pre-coded channel parameter matrix is where the PMI indication W for the number of ports P P×l , l is the number of ranks or layers. In one case, l is a positive integer not greater than P. In another case, the pre-coding matrix is the identity matrix, and at this time P = l; for example, the equivalent channel capacity of H r×P ·W P×l is calculated using criteria such as SINR (Signal Interference Noise Ratio), EESM (Exponential Effective SINR Mapping), or RBIR (Received Block mean mutual Information Ratio), and then the CQI in the CSI for the number of ports P is determined by looking up a table or other means based on the equivalent channel capacity.

[0339] Example 7

[0340] Embodiment 7 exemplifies a schematic diagram of the relationship between the ratio of the CSI-RS EPRE of a CSI-RS resource in the first timing set according to an embodiment of the present application to the synchronization signal EPRE and P; as shown in the appendix Figure 7 shown. In the appendix Figure 7 , CSI-RS resource #1,..., CSI-RS resource #J are multiple CSI-RS resources in the first CSI-RS resource group.

[0341] In Embodiment 7, when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of each CSI-RS resource in the first CSI-RS resource group that is not later than the CSI reference resource of the first CSI. The ratio of the CSI-RS EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set to the synchronization signal EPRE is the same. The first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set.

[0342] As an example, when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE configured for each CSI-RS resource in the first CSI-RS resource set to the synchronization signal EPRE is determined by the sender of the first CSI reporting configuration. The first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI. The first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set.

[0343] As an example, when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, whether the ratios of the CSI-RS EPREs respectively configured for different CSI-RS resources in the first CSI-RS resource set to the synchronization signal EPRE are the same is determined by the sender of the first CSI reporting configuration. The first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI. The first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set.

[0344] As an example, when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the ratios of the CSI-RS EPREs respectively configured for any two CSI-RS resources in the first CSI-RS resource set to the synchronization signal EPRE are not necessarily the same. The first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI. The first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set.

[0345] As an example, when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the ratios of the CSI-RS EPREs respectively configured for any two CSI-RS resources in the first CSI-RS resource set to the synchronization signal EPRE can be the same or different. The first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI. The first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set.

[0346] As an example, when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the sender of the first CSI reporting configuration may configure the same ratio of CSI-RS EPRE to synchronization signal EPRE for two CSI-RS resources in the first CSI-RS resource set, or the sender of the first CSI reporting configuration may also configure different ratios of CSI-RS EPRE to synchronization signal EPRE for two CSI-RS resources in the first CSI-RS resource set. The first timing set includes at least one transmission timing of the first CSI-RS resource that is no later than the CSI reference resource of the first CSI, and the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set.

[0347] As an example, the IE indication used to configure a CSI-RS resource indicates at least one ratio of CSI-RS EPRE to synchronization signal EPRE configured for the CSI-RS resource.

[0348] As an example, when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the statement that the ratios of CSI-RS EPRE to synchronization signal EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set are the same means that when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first node expects the ratios of CSI-RS EPRE to synchronization signal EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set to be the same.

[0349] As an example, when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the statement that the ratios of CSI-RS EPRE to synchronization signal EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set are the same means that when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first node does not expect there to be two CSI-RS resources in the first CSI-RS resource group in the first timing set with different ratios of CSI-RS EPRE to synchronization signal EPRE.

[0350] As an example, the first CSI-RS resource group includes some or all of the CSI-RS resources in the first CSI-RS resource set.

[0351] As an embodiment, the first CSI-RS resource group is the first CSI-RS resource set.

[0352] As an embodiment, the first CSI does not include CRI, and the first CSI-RS resource group is the first CSI-RS resource set.

[0353] As an embodiment, the first CSI does not include an indication of the reporting amount of CSI-RS resources, and the first CSI-RS resource group is the first CSI-RS resource set.

[0354] As an embodiment, the first CSI-RS resource group includes some of the CSI-RS resources in the first CSI-RS resource set.

[0355] As an embodiment, the first CSI-RS resource set includes multiple CSI-RS resource groups, and the first CSI-RS resource group is one of the multiple CSI-RS resource groups.

[0356] As an embodiment, the first CSI includes a first resource indication that indicates the first CSI-RS resource group; the first CSI-RS resource set includes multiple CSI-RS resource groups, and the first CSI-RS resource group is one of the multiple CSI-RS resource groups.

[0357] As an embodiment, when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first CSI indicates the first CSI-RS resource group, the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, P is equal to the total number of ports of all CSI-RS resources in the first CSI-RS resource group, and the ratio of CSI-RS EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set to the EPRE of the synchronization signal is the same.

[0358] As an example, each CSI-RS resource in the first CSI-RS resource set is configured with a ratio of CSI-RS EPRE to synchronization signal EPRE; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of each CSI-RS resource in the first CSI-RS resource group that is not later than the CSI reference resource of the first CSI, and the ratios of CSI-RS EPRE to synchronization signal EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set are the same, and the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set.

[0359] As an example, each CSI-RS resource in the first CSI-RS resource set is configured with a ratio of CSI-RS EPRE to synchronization signal EPRE; the first CSI-RS resource set includes multiple CSI-RS resource groups, and the ratios of CSI-RS EPRE to synchronization signal EPRE of any two CSI-RS resources respectively configured to the same CSI-RS resource group in the first CSI-RS resource set are the same.

[0360] As an example, the fact that the ratios of CSI-RS EPRE to synchronization signal EPRE of any two CSI-RS resources respectively configured to the same CSI-RS resource group in the first CSI-RS resource set are the same means that the first node expects that the ratios of CSI-RS EPRE to synchronization signal EPRE of any two CSI-RS resources respectively configured to the same CSI-RS resource group in the first CSI-RS resource set are the same.

[0361] As an example, the fact that the ratios of CSI-RS EPRE to synchronization signal EPRE of any two CSI-RS resources respectively configured to the same CSI-RS resource group in the first CSI-RS resource set are the same means that the first node does not expect that there are different ratios of CSI-RS EPRE to synchronization signal EPRE for two CSI-RS resources in a CSI-RS resource group in the first CSI-RS resource set.

[0362] Example 8

[0363] Embodiment 8 exemplifies a schematic diagram of the relationship between the ratio of CSI-RS EPRE to synchronization signal EPRE of a CSI-RS resource in the first timing set and P according to another embodiment of the present application; as shown in the appendixFigure 8 as shown

[0364] In Embodiment 8, the first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI, and the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set; when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the first power control offset; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the second power control offset.

[0365] As an embodiment, the first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI; when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the first power control offset; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the second power control offset; the IE used to configure the first CSI-RS resource indicates the first power control offset and the second power control offset.

[0366] In the above method, a CSI-RS resource is configured with two ratios of CSI-RS EPRE to synchronization signal EPRE, which has high flexibility and good compatibility with the standard.

[0367] As an example, the first timing set includes at least one transmission timing of the first CSI-RS resource that is no later than the CSI reference resource of the first CSI; when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the first power control offset; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the second power control offset; the first power control offset and the second power control offset are respectively indicated by two IEs, and the IE indicating the first power control offset is used to configure the first CSI-RS resource, and one IE indicating the second power control offset is different from any IE used to configure a CSI-RS resource.

[0368] In the above method, the first power control offset is configured specifically for the first CSI-RS resource, and the second power control offset is configured for multiple CSI-RS resources including the first CSI-RS resource, which simplifies the design and saves signaling overhead.

[0369] As an example, the first timing set includes at least one transmission timing of the first CSI-RS resource that is no later than the CSI reference resource of the first CSI; when P is equal to the number of ports of any CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the first power control offset; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the second power control offset. As an example, the first power control offset and the second power control offset are configured separately.

[0370] As an example, the first power control offset and the second power control offset are different.

[0371] As an example, the first power control offset and the second power control offset are configured by different higher layer parameters.

[0372] As an example, the first power control offset and the second power control offset are configured by the same IE.

[0373] As an example, the first power control offset and the second power control offset are configured by different IEs respectively.

[0374] As an example, the first power control offset and the second power control offset are configured by IEs with different names respectively.

[0375] As an example, the IE used to configure the first CSI-RS resource indicates the first power control offset.

[0376] As an example, the IE NZP-CSI-RS-Resource used to configure the first CSI-RS resource indicates the first power control offset.

[0377] As an example, the IE used to configure the first CSI-RS resource is IE NZP-CSI-RS-Resource.

[0378] As an example, an IE that indicates the second power control offset is different from any IE used to configure a CSI-RS resource including the first CSI reporting configuration.

[0379] As an example, an IE that indicates the second power control offset is different from any IE used to configure a CSI-RS resource including the first CSI resource configuration that indicates the first CSI-RS resource set.

[0380] As an example, an IE that indicates the second power control offset is different from any IE used to configure a CSI-RS resource including the IE used to configure the first CSI-RS resource set.

[0381] As an example, an IE that indicates the second power control offset is different from any IE used to configure a CSI-RS resource including the first CSI reporting configuration which is IE CSI-ReportConfig.

[0382] As an example, an IE that indicates the second power control offset is different from any IE used to configure a CSI-RS resource including the first CSI resource configuration which is IE CSI-ResourceConfig and the first CSI resource configuration indicates the first CSI-RS resource set.

[0383] As an example, an IE that indicates the second power control offset is different from any IE used to configure a CSI-RS resource including the IENZP-CSI-RS-ResourceSet used to configure the first CSI-RS resource set.

[0384] Example 9

[0385] Example 9 exemplifies a schematic diagram of the relationship between the ratio of the CSI-RS EPRE of a CSI-RS resource in the first set of timing instants according to another embodiment of the present application to the synchronization signal EPRE and P; as shown in the accompanying Figure 9 figure.

[0386] In Example 9, when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the first set of timing instants includes at least one transmission timing instant of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI, the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set, and the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first set of timing instants to the synchronization signal EPRE is the first power control offset; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first set of timing instants includes at least one transmission timing instant of the CSI reference resource of each CSI-RS resource in the first CSI-RS resource group that is not later than the first CSI, the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P, and the ratio of the CSI-RS EPRE of all CSI-RS resources in the first CSI-RS resource group in the first set of timing instants to the synchronization signal EPRE is the second power control offset.

[0387] As an example, when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of the first CSI-RS resource that is no later than the CSI reference resource of the first CSI. The ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the first power control offset. The first CSI indicates the first CSI-RS resource, and the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set. When P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of each CSI-RS resource in the first CSI-RS resource group that is no later than the CSI reference resource of the first CSI. The first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, and the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P. The ratio of the CSI-RS EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set to the synchronization signal EPRE is the second power control offset, and the first CSI indicates the first CSI-RS resource group.

[0388] As an example, when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of the first CSI-RS resource that is not later than the CSI reference resource of the first CSI, and the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the first power control offset; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of each CSI-RS resource in the first CSI-RS resource group that is not later than the CSI reference resource of the first CSI, the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P, and the ratio of the CSI-RS EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set to the synchronization signal EPRE is the second power control offset; the first power control offset and the second power control offset are respectively indicated by two IEs, the IE indicating the first power control offset is used to configure the first CSI-RS resource, and one IE indicating the second power control offset is different from any IE used to configure a CSI-RS resource.

[0389] In the above method, the first power control offset is configured specifically for the first CSI-RS resource, and the second power control offset can be configured for multiple CSI-RS resources including the first CSI-RS resource, which simplifies the design and saves signaling overhead.

[0390] As an embodiment, when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of the first CSI-RS resource that is not later than the CSI reference resource of the first CSI, and the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the first power control offset; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of each CSI-RS resource in the first CSI-RS resource group that is not later than the CSI reference resource of the first CSI, the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P, and the ratio of the CSI-RS EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set to the synchronization signal EPRE is the second power control offset; the IE indicating the first power control offset is used to configure the first CSI-RS resource, and the IE indicating the second power control offset is used to configure a CSI-RS resource in the first CSI-RS resource group.

[0391] In the above method, the compatibility with the standard is good.

[0392] Example 10

[0393] Embodiment 10 exemplifies a schematic diagram of the second power control offset according to an embodiment of the present application; as shown in the appendix Figure 10 as follows.

[0394] In Embodiment 10, the IE used to configure the first CSI-RS resource indicates the first power control offset and the second power control offset, and the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set.

[0395] As an embodiment, the IE used to configure the first CSI-RS resource indicating the first power control offset and the second power control offset includes: the IE used to configure the first CSI-RS resource includes two fields, and the two fields respectively indicate the first power control offset and the second power control offset.

[0396] As an example, the IE used to configure the first CSI-RS resource indicates the first power control offset and the second power control offset, including: the IE used to configure the first CSI-RS resource includes two fields, one of the two fields indicates the first power control offset, and the other field of the two fields indicates a first offset value, the first offset value being a real number or an integer; the second power control offset is equal to the sum of the first offset value and the first power control offset, or the second power control offset is equal to the first power control offset minus the first offset value; the units of the first power control offset, the second power control offset, and the first offset value are all dB.

[0397] As an example, the IE used to configure the first CSI-RS resource indicates the first power control offset.

[0398] As an example, the IE NZP-CSI-RS-Resource used to configure the first CSI-RS resource indicates the first power control offset.

[0399] As an example, the IE used to configure the first CSI-RS resource is the IE NZP-CSI-RS-Resource.

[0400] As an example, both the first power control offset and the second power control offset are configured for the first CSI-RS resource.

[0401] As an example, the first power control offset and the second power control offset are indicated by the same IE.

[0402] In the above method, a CSI-RS resource is configured with two ratios of CSI-RS EPRE to synchronization signal EPRE, which has high flexibility and good compatibility with standards.

[0403] Example 11

[0404] Embodiment 11 exemplifies a schematic diagram of the second power control offset according to another embodiment of the present application; as shown in the appendix Figure 11 shown. In the appendix Figure 11 IE#1 and IE#2 are two IEs.

[0405] In Embodiment 11, the first power control offset and the second power control offset are respectively indicated by two IEs. The IE indicating the first power control offset is used to configure the first CSI-RS resource, and one IE indicating the second power control offset is different from any IE used to configure a CSI-RS resource.

[0406] As an example, the IE indicating the first power control offset being used to configure the first CSI-RS resource means that the IE indicating the first power control offset is the IE NZP-CSI-RS-Resource which is used to configure the first CSI-RS resource.

[0407] As an example, an IE indicating the second power control offset is different from any IE used to configure a CSI-RS resource including the first CSI reporting configuration.

[0408] As an example, an IE indicating the second power control offset is different from any IE used to configure a CSI-RS resource including the first CSI resource configuration which indicates the first CSI-RS resource set.

[0409] As an example, an IE indicating the second power control offset is different from any IE used to configure a CSI-RS resource including the IE used to configure the first CSI-RS resource set.

[0410] As an example, an IE indicating the second power control offset is different from any IE used to configure a CSI-RS resource including the first CSI reporting configuration which is the IE CSI-ReportConfig.

[0411] As an example, an IE indicating the second power control offset is different from any IE used to configure a CSI-RS resource including the first CSI resource configuration which is the IE CSI-ResourceConfig and the first CSI resource configuration indicates the first CSI-RS resource set.

[0412] As an example, an IE indicating the second power control offset is different from any IE used to configure a CSI-RS resource including the IENZP-CSI-RS-ResourceSet used to configure the first CSI-RS resource set.

[0413] Example 12

[0414] Example 12 exemplifies a schematic diagram of the second power control offset according to another embodiment of the present application; as shown in the appendix Figure 12 Shown in the appendix Figure 12 Among them, CSI-RS resource #1, ……, CSI-RS resource #J are multiple CSI-RS resources in the first CSI-RS resource group.

[0415] In Embodiment 12, each CSI-RS resource in the first CSI-RS resource set is configured with a ratio of CSI-RS EPRE to synchronization signal EPRE; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first numerical set includes the ratios of CSI-RS EPRE to synchronization signal EPRE configured for each CSI-RS resource in the first CSI-RS resource group, and the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set; the second power control offset is a value in the first numerical set, or the second power control offset depends on the first numerical set.

[0416] As an embodiment, the first CSI-RS resource group includes some or all of the CSI-RS resources in the first CSI-RS resource set.

[0417] As an embodiment, the first CSI-RS resource group is the first CSI-RS resource set.

[0418] As an embodiment, the first CSI-RS resource group is the first CSI-RS resource set, and the first CSI does not include CRI.

[0419] As an embodiment, the first CSI-RS resource group is the first CSI-RS resource set, and the first CSI does not include an indication of the reporting amount of CSI-RS resources.

[0420] As an embodiment, the first CSI-RS resource group includes some of the CSI-RS resources in the first CSI-RS resource set.

[0421] As an embodiment, the first CSI includes a first resource indication, and the first resource indication indicates the first CSI-RS resource group; the first CSI-RS resource set includes multiple CSI-RS resource groups, and the first CSI-RS resource group is one of the multiple CSI-RS resource groups.

[0422] As an embodiment, the second power control offset is the minimum value in the first numerical set.

[0423] As an embodiment, the second power control offset depends on the first numerical set including: the second power control offset is the minimum value in the first numerical set.

[0424] In the above method, by using the minimum powerControlOffsetSS in the first numerical set, the most reliable transmission can be obtained.

[0425] As an example, the second power control offset is the maximum value in the first set of values.

[0426] As an example, the second power control offset depending on the first set of values includes: the second power control offset is the maximum value in the first set of values.

[0427] In the above method, by using the maximum powerControlOffsetSS in the first set of values, the transmission with the largest capacity can be obtained.

[0428] As an example, the second power control offset is the average value in the first set of values.

[0429] As an example, the second power control offset depending on the first set of values includes: the second power control offset is the average value in the first set of values.

[0430] In the above method, by using the average value of all powerControlOffsetSS in the first set of values, both reliability and capacity are comprehensively considered.

[0431] As an example, the second power control offset is the ratio of the CSI-RS EPRE of the first CSI-RS resource configured in the first set of values to the EPRE of the synchronization signal, where the first CSI-RS resource is one of the CSI-RS resources in the first CSI-RS resource group.

[0432] As an example, the second power control offset depending on the first set of values includes: the second power control offset is the ratio of the CSI-RS EPRE of the first CSI-RS resource configured in the first set of values to the EPRE of the synchronization signal, where the first CSI-RS resource is one of the CSI-RS resources in the first CSI-RS resource group.

[0433] As an example, the second power control offset is the ratio of the CSI-RS EPRE of the second CSI-RS resource configured in the first set of values to the EPRE of the synchronization signal, where the second CSI-RS resource is one of the CSI-RS resources in the first CSI-RS resource group.

[0434] As an example, the second power control offset depending on the first set of values includes: the second power control offset is the ratio of the CSI-RS EPRE of the second CSI-RS resource configured in the first set of values to the EPRE of the synchronization signal, where the second CSI-RS resource is one of the CSI-RS resources in the first CSI-RS resource group.

[0435] In the above method, the powerControlOffsetSS configured for one CSI-RS resource in the first CSI-RS resource group is similar to that the powerControlOffsetSS in the standard is configured for one CSI-RS resource, and has good compatibility with the standard.

[0436] As an embodiment, the second power control offset is the ratio of the CSI-RS EPRE of the first numerical set configured for the second CSI-RS resource to the EPRE of the synchronization signal, and the second CSI-RS resource is the first CSI-RS resource in the first CSI-RS resource group.

[0437] As an embodiment, the second power control offset depending on the first numerical set includes: the second power control offset is the ratio of the CSI-RS EPRE of the first numerical set configured for the second CSI-RS resource to the EPRE of the synchronization signal, and the second CSI-RS resource is the first CSI-RS resource in the first CSI-RS resource group.

[0438] In the above method, the powerControlOffsetSS configured for the second CSI-RS resource is similar to that the powerControlOffsetSS in the standard is configured for one CSI-RS resource, and has good compatibility with the standard; selecting the second CSI-RS resource as the first CSI-RS resource in the first CSI-RS resource group simplifies the design and makes less changes to the standard.

[0439] As an embodiment, the second power control offset is the ratio of the CSI-RS EPRE of the first numerical set configured for the second CSI-RS resource to the EPRE of the synchronization signal, and the second CSI-RS resource is the CSI-RS resource with the smallest index or identifier in the first CSI-RS resource group.

[0440] As an embodiment, the second power control offset depending on the first numerical set includes: the second power control offset is the ratio of the CSI-RS EPRE of the first numerical set configured for the second CSI-RS resource to the EPRE of the synchronization signal, and the second CSI-RS resource is the CSI-RS resource with the smallest index or identifier in the first CSI-RS resource group.

[0441] In the above method, the powerControlOffsetSS configured for the second CSI-RS resource is similar to that in the standard where powerControlOffsetSS is configured for a CSI-RS resource, and it has good compatibility with the standard; selecting the second CSI-RS resource as the CSI-RS resource with the smallest index or identity in the first CSI-RS resource group simplifies the design and makes less modification to the standard.

[0442] As an embodiment, the second power control offset is the ratio of CSI-RS EPRE to synchronization signal EPRE in the first numerical set that is configured for the second CSI-RS resource, and the second CSI-RS resource is the CSI-RS resource with the largest index or identity in the first CSI-RS resource group.

[0443] As an embodiment, the second power control offset depending on the first numerical set includes: the second power control offset is the ratio of CSI-RS EPRE to synchronization signal EPRE in the first numerical set that is configured for the second CSI-RS resource, and the second CSI-RS resource is the CSI-RS resource with the largest index or identity in the first CSI-RS resource group.

[0444] In the above method, the powerControlOffsetSS configured for the second CSI-RS resource is similar to that in the standard where powerControlOffsetSS is configured for a CSI-RS resource, and it has good compatibility with the standard; selecting the second CSI-RS resource as the CSI-RS resource with the largest index or identity in the first CSI-RS resource group simplifies the design and makes less modification to the standard.

[0445] Example 13

[0446] Embodiment 13 exemplifies a structural block diagram of a processing device in a first node device according to an embodiment of the present application; as shown in the appendix Figure 13 shown. In the appendix Figure 13 the processing device 1200 in the first node device includes a first receiver 1201 and a first transmitter 1202.

[0447] As an embodiment, the first node device is a user equipment.

[0448] As an embodiment, the first node device is a relay node device.

[0449] As an example, the first receiver 1201 includes at least one of {antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0450] As an example, the first transmitter 1202 includes at least one of {antenna 452, transmitter 454, transmitting processor 468, multi-antenna transmitting processor 457, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0451] The first receiver 1201 receives a first CSI reporting configuration, where the first CSI reporting configuration indicates a first set of CSI-RS resources for channel measurement, and the first set of CSI-RS resources includes multiple CSI-RS resources; the first CSI reporting configuration is used to configure the reporting of CSI for a port number of P, where P is a positive integer greater than 1.

[0452] The first transmitter 1202 transmits a first CSI; the first CSI is the CSI for a port number of P configured by the first CSI reporting configuration.

[0453] In Embodiment 13, the first set of timing includes at least one transmission timing of the CSI reference resource no later than the first CSI for at least one CSI-RS resource in the first set of CSI-RS resources, and the channel measurement based on the first set of timing is used to calculate the first CSI; the ratio of the CSI-RS EPRE of a CSI-RS resource in the first set of timing to the synchronization signal EPRE depends on whether P is greater than the port number of any CSI-RS resource in the first set of CSI-RS resources.

[0454] As an example, when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the first CSI indicates a first CSI-RS resource, where the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set, and the first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first CSI indicates a first CSI-RS resource group, where the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, and the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P, and the first timing set includes at least one transmission timing of the CSI reference resource of each CSI-RS resource in the first CSI-RS resource group that is not later than the first CSI.

[0455] As an example, when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of the CSI reference resource of each CSI-RS resource in the first CSI-RS resource group that is not later than the first CSI, and the ratio of the CSI-RS EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set to the synchronization signal EPRE is the same, and the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set.

[0456] As an example, the first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI, where the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set; when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the first power control offset; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the second power control offset.

[0457] As an embodiment, when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of the first CSI-RS resource that is not later than the CSI reference resource of the first CSI, where the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set, and the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the first power control offset; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of each CSI-RS resource in the first CSI-RS resource group that is not later than the CSI reference resource of the first CSI, where the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P, and the ratio of the CSI-RS EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set to the synchronization signal EPRE is the second power control offset.

[0458] As an embodiment, the first power control offset and the second power control offset are respectively indicated by two IEs. The IE indicating the first power control offset is used to configure the first CSI-RS resource, and one IE indicating the second power control offset is different from any IE used to configure a CSI-RS resource.

[0459] As an embodiment, each CSI-RS resource in the first CSI-RS resource set is configured with a ratio of the CSI-RS EPRE to the synchronization signal EPRE; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first numerical set includes the ratio of the CSI-RS EPRE to the synchronization signal EPRE configured for each CSI-RS resource in the first CSI-RS resource group, where the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set; the second power control offset is a value in the first numerical set, or the second power control offset depends on the first numerical set.

[0460] Example 14

[0461] Embodiment 14 exemplifies a structural block diagram of a processing device in a second node device according to an embodiment of the present application; as shown in the appendix Figure 14 shown. In the appendix Figure 14Among them, the processing device 1300 in the second node device includes a second transmitter 1301 and a second receiver 1302.

[0462] As an embodiment, the second node device is a base station device.

[0463] As an embodiment, the second node device is a user equipment.

[0464] As an embodiment, the second node device is a relay node device.

[0465] As an embodiment, the second transmitter 1301 includes at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, memory 476} in Embodiment 4.

[0466] As an embodiment, the second receiver 1302 includes at least one of {antenna 420, receiver 418, receive processor 470, multi-antenna receive processor 472, controller / processor 475, memory 476} in Embodiment 4.

[0467] The second transmitter 1301 sends a first CSI reporting configuration, and the first CSI reporting configuration indicates a first CSI-RS resource set for channel measurement, and the first CSI-RS resource set includes a plurality of CSI-RS resources; the first CSI reporting configuration is used to configure the reporting of CSI for a port number of P, and P is a positive integer greater than 1;

[0468] The second receiver 1302 receives a first CSI; the first CSI is the CSI for a port number of P configured by the first CSI reporting configuration;

[0469] In Embodiment 14, the first timing set includes at least one transmission timing of a CSI reference resource not later than the first CSI of at least one CSI-RS resource in the first CSI-RS resource set, and the channel measurement based on the first timing set is used to calculate the first CSI; the ratio of the CSI-RS EPRE of a CSI-RS resource in the first timing set to the synchronization signal EPRE depends on whether P is greater than the port number of any CSI-RS resource in the first CSI-RS resource set.

[0470] As an example, when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the first CSI indicates a first CSI-RS resource, where the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set, and the first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first CSI indicates a first CSI-RS resource group, where the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, and the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P, and the first timing set includes at least one transmission timing of the CSI reference resource of each CSI-RS resource in the first CSI-RS resource group that is not later than the first CSI.

[0471] As an example, when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of the CSI reference resource of each CSI-RS resource in the first CSI-RS resource group that is not later than the first CSI, and the ratio of the CSI-RS EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set to the synchronization signal EPRE is the same, and the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set.

[0472] As an example, the first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI, where the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set; when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the first power control offset; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the second power control offset.

[0473] As an example, when P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of the first CSI-RS resource that is not later than the CSI reference resource of the first CSI, the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set, and the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is the first power control offset; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of each CSI-RS resource in the first CSI-RS resource group that is not later than the CSI reference resource of the first CSI, the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P, and the ratio of the CSI-RS EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set to the synchronization signal EPRE is the second power control offset.

[0474] As an example, the first power control offset and the second power control offset are respectively indicated by two IEs. The IE indicating the first power control offset is used to configure the first CSI-RS resource, and an IE indicating the second power control offset is different from any IE used to configure a CSI-RS resource.

[0475] As an example, each CSI-RS resource in the first CSI-RS resource set is configured with a ratio of the CSI-RS EPRE to the synchronization signal EPRE; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first numerical set includes the ratios of the CSI-RS EPRE to the synchronization signal EPRE configured for each CSI-RS resource in the first CSI-RS resource group, the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set; the second power control offset is a value in the first numerical set, or the second power control offset depends on the first numerical set.

[0476] Those of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by a program instructing relevant hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk, or an optical disc, etc. Optionally, all or part of the steps of the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in hardware form or in the form of a software functional module. This application is not limited to any specific form of the combination of software and hardware. The user equipment, terminal, and UE in this application include, but are not limited to, drones, communication modules on drones, remote control planes, aircraft, small airplanes, mobile phones, tablets, laptops, vehicle-mounted communication devices, wireless sensors, network cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, network cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablets, and other wireless communication devices. The base station or system equipment in this application includes, but is not limited to, macro cell base stations, micro cell base stations, home base stations, relay base stations, gNB (NR Node B) NR Node B, TRP (Transmitter Receiver Point), and other wireless communication devices.

[0477] As described above, the above are only the preferred embodiments of this application and are not used to limit the protection scope of this application. Any changes and modifications made based on the embodiments described in the specification, if similar partial or all technical effects can be obtained, should be regarded as obvious and fall within the protection scope of this invention.

Claims

1. A first node device for wireless communication, characterized in that: include: A first receiver receives a first CSI reporting configuration, where the first CSI reporting configuration indicates a first CSI-RS resource set for channel measurement, where the first CSI-RS resource set includes a plurality of CSI-RS resources; the first CSI reporting configuration is used to configure reporting of CSI for a number of ports P, where P is a positive integer greater than 1; A first transmitter sends a first CSI, wherein the first CSI is the CSI configured by the first CSI reporting configuration for a number of ports P; The first timing set includes at least one transmission timing of a CSI reference resource of at least one CSI-RS resource in the first CSI-RS resource set that is not later than the first CSI, and the channel measurement based on the first timing set is used to calculate the first CSI; the ratio of the CSI-RS EPRE to the synchronization signal EPRE of a CSI-RS resource in the first timing set depends on whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set.

2. The first node device according to claim 1, characterized in that When the P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the first CSI indicates a first CSI-RS resource, the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set, and the first timing set includes at least one transmission timing of the CSI reference resource of the first CSI-RS resource that is not later than the first CSI; when the P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first CSI indicates a first CSI-RS resource group, the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to the P, and the first timing set includes at least one transmission timing of the CSI reference resource of each CSI-RS resource in the first CSI-RS resource group that is not later than the first CSI.

3. The first node device according to claim 1 or 2, characterized in that: When P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first timing set includes at least one transmission timing of the CSI reference resource of each CSI-RS resource in the first CSI-RS resource group that is no later than the first CSI, the ratios of CSI-RS EPRE to synchronization signal EPRE of all CSI-RS resources in the first CSI-RS resource group in the first timing set are the same, and the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set.

4. The first node device according to any one of claims 1 to 3, characterized in that: The first timing set includes at least one transmission timing of the first CSI-RS resource that is no later than the CSI reference resource of the first CSI, and the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set; when the P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is a first power control offset; when the P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the ratio of the CSI-RS EPRE of the first CSI-RS resource in the first timing set to the synchronization signal EPRE is a second power control offset.

5. The first node device according to any one of claims 1 to 3, characterized in that: When P is equal to the number of ports of a CSI-RS resource in the first CSI-RS resource set, the first opportunity set includes at least one transmission opportunity of the first CSI-RS resource that is no later than the CSI reference resource of the first CSI, the first CSI-RS resource is a CSI-RS resource in the first CSI-RS resource set, and a ratio of CSI-RS EPRE to synchronization signal EPRE of the first CSI-RS resource in the first opportunity set is a first power control offset. When P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first opportunity set includes at least one transmission opportunity of each CSI-RS resource in the first CSI-RS resource group that is no later than the CSI reference resource of the first CSI, the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set, the total number of ports of all CSI-RS resources in the first CSI-RS resource group is equal to P, and the ratios of CSI-RS EPRE to synchronization signal EPRE of all CSI-RS resources in the first CSI-RS resource group in the first opportunity set are a second power control offset.

6. The first node device according to claim 4 or 5, characterized in that: The first power control offset and the second power control offset are respectively indicated by two IEs, the IE indicating the first power control offset is used to configure the first CSI-RS resource, and the IE indicating the second power control offset is different from any IE used to configure a CSI-RS resource.

7. The first node device according to claim 4 or 5, characterized in that: Each CSI-RS resource in the first CSI-RS resource set is configured with a ratio of CSI-RS EPRE to synchronization signal EPRE; when P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set, the first value set includes the ratio of CSI-RS EPRE to synchronization signal EPRE configured for each CSI-RS resource in the first CSI-RS resource group, and the first CSI-RS resource group includes multiple CSI-RS resources in the first CSI-RS resource set; the second power control offset is a value in the first value set, or the second power control offset depends on the first value set.

8. A second node device for wireless communication, characterized in that: include: A second transmitter sends a first CSI reporting configuration, where the first CSI reporting configuration indicates a first CSI-RS resource set for channel measurement, where the first CSI-RS resource set includes multiple CSI-RS resources; the first CSI reporting configuration is used to configure reporting of CSI for a number of ports P, where P is a positive integer greater than 1; A second receiver receives a first CSI, wherein the first CSI is the CSI configured by the first CSI reporting configuration for a number of ports P; The first timing set includes at least one transmission timing of a CSI reference resource of at least one CSI-RS resource in the first CSI-RS resource set that is not later than the first CSI, and the channel measurement based on the first timing set is used to calculate the first CSI; the ratio of the CSI-RS EPRE to the synchronization signal EPRE of a CSI-RS resource in the first timing set depends on whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set.

9. A method in a first node for wireless communication, characterized in that include: receiving a first CSI reporting configuration, where the first CSI reporting configuration indicates a first CSI-RS resource set for channel measurement, the first CSI-RS resource set including a plurality of CSI-RS resources; the first CSI reporting configuration is used to configure reporting of CSI for a number of ports P, where P is a positive integer greater than 1; Sending a first CSI; the first CSI is the CSI configured by the first CSI reporting configuration for a port number P; The first timing set includes at least one transmission timing of a CSI reference resource of at least one CSI-RS resource in the first CSI-RS resource set that is not later than the first CSI, and the channel measurement based on the first timing set is used to calculate the first CSI; the ratio of the CSI-RS EPRE to the synchronization signal EPRE of a CSI-RS resource in the first timing set depends on whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set.

10. A method in a second node for wireless communication, characterized in that: include: Sending a first CSI reporting configuration, where the first CSI reporting configuration indicates a first CSI-RS resource set for channel measurement, where the first CSI-RS resource set includes multiple CSI-RS resources; the first CSI reporting configuration is used to configure reporting of CSI for a number of ports P, where P is a positive integer greater than 1; Receive first CSI; the first CSI is the CSI configured by the first CSI reporting configuration for a port number P; The first timing set includes at least one transmission timing of a CSI reference resource of at least one CSI-RS resource in the first CSI-RS resource set that is not later than the first CSI, and the channel measurement based on the first timing set is used to calculate the first CSI; the ratio of the CSI-RS EPRE to the synchronization signal EPRE of a CSI-RS resource in the first timing set depends on whether P is greater than the number of ports of any CSI-RS resource in the first CSI-RS resource set.

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