WO2021030956A1

WO2021030956A1 - Csi resource capability report method, csi report configuration method, terminal device, and network device

Info

Publication number: WO2021030956A1
Application number: PCT/CN2019/101074
Authority: WO
Inventors: 张永平; 李宝金; 李铁
Original assignee: 华为技术有限公司
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2021-02-25

Abstract

The present application provides a CSI-RS resource capability report method, a CSI report configuration method, a terminal device, a network device, a chip, a storage medium, a computer program, a computer program product, etc. By constraining a terminal device to report the same CSI resource capability parameters supported by all types of PMI codebooks supported by the terminal device or constraining a network device to configure a plurality of CSI reports for a plurality types of PMI codebooks according to a preset rule, it can be ensured that when the network device simultaneously configure a plurality of CSI reports based on different types of PMI codebooks, the total CSI-RS resources do not exceed a CSI-RS resource capability reported by the terminal device, thereby preventing network interruption caused by the occurrence of a fault in the running of a terminal, and when the network device merely configure a CSI report of a same type of PMI codebook, the actual hardware processing and computation capability of the terminal device would not be wasted.

Description

CSI resource capability reporting method, CSI reporting configuration method, terminal and network equipment

Technical field

This application relates to the field of wireless communication technology, and in particular to a method for reporting CSI-RS resource capabilities, a method for CSI reporting configuration, a method for reporting CSI-RS resource capabilities for beam management, a method for CSI reporting configuration for beam management, terminal equipment, network equipment, Chip and storage medium.

Background technique

The fifth-generation wireless access system standard New Radio (NR) system is based on multiple-input multiple-output (MIMO). In order to improve the performance of the downlink, that is, the link performance from the transmission reception point (TRP) to the terminal device, a closed-loop MIMO operation mode can be adopted. Specifically, TRP transmits the channel state information reference signal (channel state information-reference signal, CSI-RS), and informs the terminal device to perform downlink channel measurement through downlink signaling. After receiving the downlink signaling, the terminal device receives it through measurement CSI-RS signal, obtain downlink channel state information (channel state information, CSI), and report CSI measurement results on the uplink channel resources configured by TRP; TRP can determine the parameters used when transmitting data according to the CSI reported by the terminal device , Which can improve the spectral efficiency.

At present, the NR protocol supports 4 different types of precoding matrix indication (PMI) codebook types, namely Type I single panel (Type I single panel), Type I multiple panel (Type I multiple panel), and type Type II (Type II) and Type II port selection (Type II port selection). Generally speaking, terminal equipment can support multiple types of PMI codebooks, but not all types of PMI codebooks need to be supported. The terminal can report the capability information to notify the TRP of one or more types of PMI codes that it can support this.

In the actual communication process, TRP does not always configure terminal equipment to report multiple CSI based on different types of PMI codebooks at the same time. Therefore, the capability information reported by terminal equipment for a certain type of PMI codebook is often based on the following assumptions : TRP only configures terminal equipment to report CSI based on specific types of PMI codebooks, that is, terminals often only report capability information for specific types of PMI codebooks; when TRP configures terminal equipment to perform PMI codebooks based on different types at the same time When multiple CSIs are reported, the hardware processing and computing capabilities required for CSI measurement and reporting will exceed the actual hardware processing and computing capabilities of the terminal device, which will cause the terminal device to run incorrectly and cause network interruption. Therefore, how to prevent the CSI measurement and reporting from exceeding the hardware processing and computing capabilities of the terminal device while improving the utilization rate of the terminal device hardware resources is a technical problem to be solved urgently.

Summary of the invention

The embodiment of the application provides a method for reporting CSI-RS resource capability, a method for CSI reporting configuration, a method for reporting CSI-RS resource capability for beam management, a method for CSI reporting configuration for beam management, terminal equipment, network equipment, chips and storage media, Computer programs, computer program products, etc., to solve the technical problem of preventing CSI measurement and reporting from exceeding the hardware processing and computing capabilities of the terminal equipment, while improving the utilization of terminal equipment hardware resources.

The first aspect of this application provides a method for reporting channel state information CSI resource capabilities, including:

Determine all types of precoding matrix PMI codebooks supported by the terminal equipment, and the channel state information reference signal CSI-RS resource list supported by all types of PMI codebooks; CSI-RS supported by all types of PMI codebooks The resource list is the same;

Report the list of CSI-RS resources supported by all types of PMI codebooks to the network device.

To implement the method provided in the first aspect, the terminal device sets the CSI-RS resource list supported by all types of PMI codebooks to be the same, and reports to the network device so that the network device can configure the terminal device based on multiple When multiple CSI reports of a type of PMI codebook are reported, only the CSI-RS resource list supported by all types of PMI codebooks reported by the terminal need to be considered, and the total CSI-RS resources required to process multiple CSI reports are limited to The jointly supported CSI-RS resource list is within the corresponding CSI-RS resource capacity range, which effectively prevents the CSI measurement and reporting from exceeding the terminal equipment hardware processing and calculation capabilities, and at the same time improves the utilization of terminal equipment hardware resources.

In the first design of the first aspect, the reporting to the network device the list of CSI-RS resources supported by all types of PMI codebooks that it supports includes:

Report a list of supported CSI-RS resources to the network device for each PMI codebook.

In the second design of the first aspect, the reporting of the CSI-RS resource list supported by all types of PMI codebooks to the network device includes:

A CSI-RS resource list supported by all types of PMI codebooks supported by the network device is reported to the network device.

In this reporting method, since only one list of supported CSI-RS resources is reported for all types of PMI codebooks, the reporting overhead can be saved.

In the third design of the first aspect, the supported CSI-RS resource list includes one or more sets of CSI-RS resource parameters, and each set of the CSI-RS resource parameters includes: the maximum of a single CSI-RS resource The number of transmission ports (P _max ), the total maximum number of CSI-RS resources supported at the same time (R), and the maximum total transmission port number of all CSI-RS resources supported at the same time (P _Total ).

In the fourth design of the first aspect, the supported CSI-RS resource list is within a frequency band, or within all supported frequency bands, or all supported frequency bands between 410MHz and 7.125GHz, or between 24.25GHz and 52.6GHz List of CSI-RS resources supported in all supported frequency bands between the two.

For the CSI-RS resource list involved in the fourth design, the scope of its application can be determined according to the actual frequency range. For example, reporting the CSI-RS resource list for a certain frequency band can achieve more accurate reporting; and for all the terminals supported by the terminal Frequency bands or all frequency bands supported by terminals between 410MHz and 7.125GHz, or reporting CSI-RS resource lists in all frequency bands supported by terminals between 24.25GHz and 52.6GHz, then unified reporting can be achieved, which can save money compared to reporting in one frequency band The reporting overhead can also reduce the processing complexity of the terminal device.

The second aspect of the present application provides a channel state information CSI reporting configuration method, including:

Simultaneously configure multiple CSI reports for the terminal device, and the multiple CSI reports are for multiple types of PMI codebook types;

Receiving the channel state information reference signal CSI-RS resource list supported by all types of PMI codebooks reported by the terminal equipment; the CSI-RS resource lists supported by all types of PMI codebooks are the same;

Limit the total number of CSI-RS resources corresponding to the multiple CSI reports according to the supported CSI-RS resource list.

In the first design of the second aspect, the receiving the channel state information reference signal CSI-RS resource list supported by all types of PMI codebooks reported by the terminal device includes:

The receiving terminal device reports a list of commonly supported CSI-RS resources for all types of PMI codebooks it supports; or

The receiving terminal device separately reports a list of CSI-RS resources supported by each type of PMI codebook it supports.

In the second design of the second aspect, the method further includes:

Analyze the supported CSI-RS resource list to obtain one or more sets of CSI-RS parameter combinations, and each set of CSI-RS parameter combinations includes: the maximum number of transmission ports (P _max ) in a single CSI-RS resource, The maximum total number of all CSI-RS resources supported at the same time (R), and the maximum total number of transmission ports (P _Total ) in all the CSI-RS resources supported at the same time.

In the third design of the second aspect, restricting the total number of CSI-RS resources corresponding to the multiple CSI reports according to the supported CSI-RS resource list includes:

Limit the maximum number of transmission ports in a single CSI-RS resource corresponding to a single CSI report to be less than or equal to the maximum number of transmission ports in a single CSI-RS resource in a set of CSI-RS parameter combinations (P _max ) ; And

Limiting the maximum total number of all CSI-RS resources corresponding to the multiple CSI reports to be less than or equal to the maximum total number of all CSI-RS resources simultaneously supported in the same CSI-RS parameter combination (R); And

Limit the maximum total number of transmission ports in all CSI-RS resources corresponding to multiple CSI reports to be less than or equal to the maximum total number of transmission ports in all CSI-RS resources simultaneously supported in the same set of CSI-RS parameter combinations (P _Total ).

Implementing the method provided in the second aspect, the network device receives the CSI-RS resource list supported by all types of PMI codebooks supported by the terminal device regardless of whether it is sent separately or at a time, and the network device configures the terminal device at the same time When multiple CSI reports based on multiple types of PMI codebooks, only the CSI-RS resource list supported by all types of PMI codebooks reported by the terminal need to be considered, and the total CSI-RS required for processing multiple CSI reports will be processed The resources are limited to the CSI-RS resource capacity corresponding to the CSI-RS resource list that is jointly supported, which effectively prevents the CSI measurement and reporting from exceeding the terminal equipment hardware processing and computing capabilities, and at the same time improves the utilization of terminal equipment hardware resources .

The third aspect of the present application provides a method for configuring channel state information CSI reporting, including:

The receiving terminal device reports a list of CSI-RS resources supported by all types of PMI codebooks respectively supported;

According to the supported CSI-RS resource list, and according to preset rules, it is determined to configure multiple CSI reports corresponding CSI configuration parameters for the terminal device at the same time, and the multiple CSI reports are specific to the supported PMI codebooks Many types of PMI codebooks.

Implementing the method provided in the third aspect does not restrict the CSI-RS resource list reported by the terminal device, and the terminal reporting capability is more flexible; in addition, the network device will process the total CSI required for multiple CSI reporting according to certain preset rules -RS resources are limited to the CSI-RS resource capabilities specified in the preset rules, which effectively prevents CSI measurement and reporting from exceeding the hardware processing and computing capabilities of the terminal equipment, and at the same time improves the utilization of terminal equipment hardware resources.

In the first design of the third aspect, the preset rule is any one of the following:

Taking the CSI-RS resource list supported by the PMI codebook with the highest priority among all types of PMI codebooks supported by the terminal device as the CSI-RS resource list corresponding to the multiple CSI reporting;

When all types of PMI codebooks supported by the terminal device include a predetermined type of PMI codebook, the CSI-RS resource list supported by the predetermined type of PMI codebook is reported as the multiple CSI corresponding CSI-RS List of resources.

In the second design of the third aspect, the priority of the PMI codebook is determined according to the complexity of the PMI codebook.

Determine the priority of the PMI codebook according to the complexity, and determine the corresponding CSI-RS resource list method for CSI reporting according to the priority. Since the network device takes into account the CSI-RS resources required for the CSI reporting of the most complex PMI codebook, That is to say, considering the hardware processing and computing capabilities required by the terminal to process the most complex CSI reports, the total CSI-RS resources required for processing multiple CSI reports are limited to the CSI-RS resource capabilities, which effectively prevents CSI measurement and reporting exceed the hardware processing and computing capabilities of the terminal equipment, and at the same time can improve the utilization of terminal equipment hardware resources. In the third design of the third aspect, the priority of the PMI codebook is determined according to the frequency of use of the PMI codebook.

Determine the priority of the PMI codebook according to the frequency of use, and determine the way the CSI reports the corresponding CSI-RS resource list according to the priority, because the network equipment takes into account the CSI-RS resources required for the CSI report of the most commonly used PMI codebook , That is, taking into account the hardware processing and computing capabilities required for CSI reports that terminal equipment often handles, so to a large extent, the total CSI-RS resources required for processing multiple CSI reports can be limited to the range of CSI-RS resource capabilities Within this, it effectively prevents the CSI measurement and reporting from exceeding the hardware processing and computing capabilities of the terminal equipment, and at the same time improves the utilization of terminal equipment hardware resources.

Among them, the priority of the PMI codebook is from high to low: Type II codebook, Type I MP codebook, Type I SP codebook, Type II PS codebook.

In a fourth aspect of the present application, a terminal device is provided, including at least one processor and a transceiver;

The processor is configured to determine all types of PMI codebooks supported by the terminal device, and a channel state information reference signal CSI-RS resource list supported by all types of PMI codebooks; all types of PMI codes The list of supported CSI-RS resources is the same;

The transceiver is configured to report a list of CSI-RS resources supported by all types of PMI codebooks supported by the terminal device to the network device.

To implement the terminal equipment provided in the fourth aspect, the terminal equipment sets the CSI-RS resource list supported by all types of PMI codebooks to be the same and reports to the network equipment so that the network equipment can configure the terminal equipment based on multiple When multiple CSI reports for one type of PMI codebook, only the CSI-RS resource list supported by all types of PMI codebooks reported by the terminal need to be considered, and the total CSI-RS resource required for processing multiple CSI reports will be limited Within the scope of the CSI-RS resource capability corresponding to the CSI-RS resource list jointly supported, it effectively prevents the CSI measurement and reporting from exceeding the hardware processing and calculation capabilities of the terminal equipment, and at the same time can improve the utilization of the terminal equipment hardware resources.

In the first design of the fourth aspect, the transceiver is configured to respectively report to the network device a list of CSI-RS resources supported by each type of PMI codebook supported by the terminal device.

In the second design of the fourth aspect, the transceiver is configured to report to the network device a list of CSI-RS resources commonly or jointly supported by all types of PMI codebooks supported by it.

In this reporting method, since only one list of commonly supported CSI-RS resources is reported for all types of PMI codebooks, the reporting overhead can be saved.

In the third design of the fourth aspect, the supported CSI-RS resource list includes one or more sets of CSI-RS resource parameters, and each set of the CSI-RS resource parameters includes: the maximum transmission in a single CSI-RS resource The number of ports (P _max ), the total maximum number of CSI-RS resources supported at the same time (R), and the maximum total transmission port number of all CSI-RS resources supported at the same time (P _Total ).

In a fifth aspect of the present application, a network device is provided, including at least one processor and a transceiver;

The processor is configured to simultaneously configure multiple CSI reports for terminal devices, and the multiple CSI reports are for multiple types of PMI codebooks;

The transceiver is configured to receive the channel state information reference signal CSI-RS resource list supported by all types of PMI codebooks reported by the terminal equipment; the CSI-RS resource list supported by all types of PMI codebooks the same;

The processor is further configured to limit the total number of CSI-RS resources corresponding to the multiple CSI reports according to the supported CSI-RS resource list.

In the first design of the fifth aspect, the transceiver is configured to receive the CSI-RS resource list jointly supported by all types of PMI codebooks reported by the terminal device; or

It is used to receive a list of the CSI-RS resources supported by each PMI codebook supported by the terminal equipment respectively.

In the second design of the fifth aspect, the processor is further configured to parse the supported CSI-RS resource list to obtain one or more sets of CSI-RS parameter combinations, and each set of the CSI-RS parameter combinations Including: the maximum number of transmission ports in a single CSI-RS resource (P _max ), the maximum total number of all CSI-RS resources supported at the same time (R), and the maximum total number of transmission ports in all CSI-RS resources supported at the same time ( P _Total ).

In a third design of the fifth aspect, the processor is specifically configured to limit the maximum number of transmit ports in a single CSI-RS resource corresponding to a single CSI report to be less than or equal to a set of CSI-RS parameters _{The maximum number of transmission ports (P max} ) in a single CSI-RS resource in the combination; and

Implement the network device provided in the fifth aspect, the network device receives the CSI-RS resource list that is supported by all types of PMI codebooks that it supports from the terminal device, and the network device configures the terminal device based on multiple types of PMI at the same time When multiple CSI reports from a codebook, only the list of CSI-RS resources supported by all types of PMI codebooks reported by the terminal need to be considered, and the total CSI-RS resources required to process multiple CSI reports are limited to those commonly supported Within the CSI-RS resource capacity range corresponding to the CSI-RS resource list, it effectively prevents the CSI measurement and reporting from exceeding the terminal equipment hardware processing and calculation capabilities, and at the same time can improve the utilization of terminal equipment hardware resources.

In a sixth aspect of the present application, a network device is provided, including a transceiver and at least one processor;

The transceiver is configured to receive the CSI-RS resource list supported by each PMI codebook in all types of PMI codebooks reported by the terminal equipment;

The processor is configured to determine, according to the supported CSI-RS resource list, according to a preset rule, to simultaneously configure multiple CSI report corresponding CSI configuration parameters for the terminal device, and the multiple CSI reports are for the supported Multiple types of PMI codebooks among all types of PMI codebooks.

In the first design of the sixth aspect, the preset rule is any one of the following:

In the second design of the sixth aspect, the priority of the PMI codebook is determined according to the complexity of the PMI codebook.

Determine the priority of the PMI codebook according to the complexity, and determine the corresponding CSI-RS resource list method for CSI reporting according to the priority. Since the network device takes into account the CSI-RS resources required for the CSI reporting of the most complex PMI codebook, That is to say, considering the hardware processing and computing capabilities required by the terminal to process the most complex CSI reports, the total CSI-RS resources required for processing multiple CSI reports are limited to the CSI-RS resource capabilities, which effectively prevents CSI measurement and reporting exceed the hardware processing and computing capabilities of the terminal equipment, and at the same time can improve the utilization of terminal equipment hardware resources.

In the third design of the sixth aspect, the priority of the PMI codebook is determined according to the frequency of use of the PMI codebook.

In the third design of the sixth aspect, the priority of the PMI codebook in descending order is: Type II codebook, Type I MP codebook, Type I SP codebook, Type II PS codebook.

The seventh aspect of the present application provides a method for reporting CSI-RS resource capabilities for beam management, including:

Determine the maximum number of CSI-RS resources for one transmit port for beam management and the maximum number of CSI-RS resources for two transmit ports for beam management supported by the terminal device;

Based on the maximum number of CSI-RS resources of one transmission port and the maximum number of CSI-RS resources of two transmission ports, the maximum number of total CSI-RS resources supported by the terminal device for beam management is determined ；

Reporting the maximum number of the total number of CSI-RS resources to the network device.

In a design of the seventh aspect, the method further includes:

Report to the network device the maximum number of CSI-RS resources of one transmit port for beam management supported by the terminal device, or report to the network device two transmissions supported by the terminal device for beam management The maximum number of CSI-RS resources of the port.

An eighth aspect of the present application provides a beam management scheduling method, including:

The network device receives the maximum number of the total number of CSI-RS resources used for beam management reported by the terminal device;

The network equipment simultaneously schedules the terminal equipment to perform beam management based on the CSI-RS resource of one transmitting port and the CSI-RS resource of two transmitting ports; the CSI-RS resource of the one transmitting port and the CSI-RS resource of the two transmitting ports. The total number of RS resources is less than or equal to the maximum number of the total number of CSI-RS resources.

In the first design of the eighth aspect, the method further includes:

The network device receives the maximum number of CSI-RS resources of one transmit port for beam management reported by the terminal device, or the terminal device reports the maximum number of CSI-RS resources supported by the terminal device for two transmit ports for beam management The maximum number of CSI-RS resources.

In the second design of the eighth aspect, the method further includes: the network device schedules the terminal device to perform beam management based on the CSI-RS resource of one transmit port; the CSI-RS resource of the one transmit port The number of is less than or equal to the maximum number of CI-RS resources of one transmission port reported by the terminal device, and less than or equal to the maximum number of the total number of CSI-RS resources.

In a third design of the eighth aspect, the method further includes: the network device scheduling the terminal device to perform beam management based on the CSI-RS resources of the two transmission ports; the CSI-RS resources of the two transmission ports The number of is less than or equal to the maximum number of CI-RS resources of the two transmission ports reported by the terminal device, and less than or equal to the maximum number of the total number of CSI-RS resources.

A ninth aspect of the present application provides a terminal device, including:

A processor, configured to determine the maximum number of CSI-RS resources of one transmit port used for beam management and the maximum number of CSI-RS resources of two transmit ports used for beam management supported by the terminal device;

The processor is further configured to determine, based on the maximum number of CSI-RS resources of the 1 transmitting port and the maximum number of CSI-RS resources of 2 transmitting ports, the CSI for beam management supported by the terminal device -The maximum number of total RS resources;

The transceiver is configured to report the maximum number of the total number of CSI-RS resources to the network device.

In a design of the ninth aspect, the transceiver is further configured to report to the network device the maximum number of CSI-RS resources of one transmit port supported by the terminal device for beam management, or to the network device The device reports the maximum number of CSI-RS resources of the two transmit ports supported by the terminal device for beam management.

A tenth aspect provides a network device, including:

The transceiver is used to receive the maximum number of the total number of CSI-RS resources used for beam management reported by the terminal equipment;

The processor is used to simultaneously schedule the terminal equipment to perform beam management based on the CSI-RS resource of 1 transmitting port and the CSI-RS resource of 2 transmitting ports; the CSI-RS resource of the 1 transmitting port and the 2 transmitting ports The total number of CSI-RS resources is less than or equal to the maximum number of the total number of CSI-RS resources.

In the first design of the tenth aspect, the transceiver is also used to receive the maximum number of CSI-RS resources of one transmit port for beam management reported by the terminal device, or to receive the terminal device Report the maximum number of CSI-RS resources supported by the two transmit ports for beam management.

In the second design of the tenth aspect, the processor is further configured to schedule the terminal device to perform beam management based on the CSI-RS resource of one transmission port; the CSI-RS resource of the one transmission port The number of is less than or equal to the maximum number of CI-RS resources of one transmission port reported by the terminal device, and less than or equal to the maximum number of the total number of CSI-RS resources.

In the third design of the tenth aspect, the processor is further configured to schedule the terminal equipment to perform beam management based on the CSI-RS resources of the two transmit ports; the CSI-RS resources of the two transmit ports The number of is less than or equal to the maximum number of CI-RS resources of the two transmission ports reported by the terminal device, and less than or equal to the maximum number of the total number of CSI-RS resources.

In an eleventh aspect, the present application provides a processor for executing the above-mentioned various methods. In the process of executing these methods, the processes of sending and receiving the information in the foregoing methods can be understood as the process of outputting the foregoing information by the processor and the process of receiving the input of the foregoing information by the processor. Specifically, when outputting the above-mentioned information, the processor outputs the above-mentioned information to the transceiver for transmission by the transceiver. Furthermore, after the above-mentioned information is output by the processor, other processing may be required before it reaches the transceiver. Similarly, when the processor receives the aforementioned information input, the transceiver receives the aforementioned information and inputs it into the processor. Furthermore, after the transceiver receives the above-mentioned information, the above-mentioned information may need to undergo other processing before being input to the processor.

In this way, if there are no special instructions for the transmitting, sending and receiving operations involved in the processor, or if it does not conflict with the actual function or internal logic in the relevant description, it can be understood as a more general The processor outputs and receives, inputs and other operations, instead of transmitting, sending and receiving directly by the radio frequency circuit and antenna.

In a specific implementation process, the foregoing processor may be a processor dedicated to executing these methods, or a processor that executes computer instructions in a memory to execute these methods, such as a general-purpose processor. The above-mentioned memory may be a non-transitory (non-transitory) memory, such as a read-only memory (Read Only Memory, ROM), which can be integrated with the processor on the same chip, or can be set on different chips. There are no restrictions on the type of memory and the way the memory and processor are set up.

In a twelfth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing computer software instructions used by the above-mentioned terminal device, including instructions for executing the above-mentioned first or fourth or seventh aspects, The procedures involved in the ninth aspect.

In a thirteenth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing computer software instructions used for the above-mentioned network equipment, which includes the second, third, and fifth aspects of the above-mentioned method. Aspect or sixth aspect, the procedures involved in the eighth aspect or tenth aspect.

In a fourteenth aspect, this application also provides a computer program product including instructions, which when run on a computer, cause the computer to execute the method described in the first or seventh aspect.

In a fifteenth aspect, this application also provides a computer program product including instructions, which when run on a computer, cause the computer to execute the methods described in the second, third, and eighth aspects.

In a sixteenth aspect, this application provides a chip that includes a processor and an interface, and is used to implement the functions involved in the first, fourth, seventh, and ninth aspects, for example, to determine or process the above At least one of the data and information involved in the method. In a possible design, the chip further includes a memory, and the memory is used to store program instructions and data necessary for the network device. The chip can be composed of a chipset, or it can include chips and other discrete devices.

In the thirteenth aspect, this application provides a chip that includes a processor and an interface for implementing the second, third, fifth, or sixth, eighth, and tenth aspects involved Function, for example, determining or processing at least one of the data and information involved in the above method. In a possible design, the chip further includes a memory, and the memory is used to store program instructions and data necessary for the network device. The chip may be composed of a chip, or may include a chip and other discrete devices.

The implementation of this application ensures that when the network device is configured with multiple CSI reports based on different types of PMI codebooks at the same time, the total CSI-RS resource does not exceed the CSI-RS resource capacity reported by the terminal device, so as to prevent terminal operation errors from causing network terminals And when the network device only configures the CSI report of the same type of PMI codebook, the actual hardware processing and computing power of the terminal device will not be wasted.

Description of the drawings

FIG. 1 is a schematic diagram of a V2X system related to an embodiment of the present application;

2 is a schematic diagram of a wireless communication system related to an embodiment of the present application;

FIG. 3 is a schematic diagram of CSI measurement and reporting involved in an embodiment of the present application;

4 is a schematic diagram of the process of periodic CSI measurement and reporting and semi-persistent CSI measurement and reporting involved in an embodiment of the present application;

FIG. 5 is a schematic diagram of a process of aperiodic CSI measurement and reporting involved in an embodiment of the present application;

FIG. 6 is a schematic diagram of a terminal device related to an embodiment of the present application reporting a CSI-RS resource capability parameter corresponding to a supported codebook type;

FIG. 7 is a schematic diagram of a process of configuring a network device and triggering a terminal device to report multiple CSI according to an embodiment of the present application;

FIG. 8 is another schematic diagram of a process of configuring a network device and triggering a terminal device to report multiple CSI according to an embodiment of the present application;

FIG. 9 is another schematic diagram of a process of configuring a network device and triggering a terminal device to report multiple CSI according to an embodiment of the present application;

FIG. 10 is a schematic flowchart of a method for reporting CSI resource capabilities provided by an embodiment of the present application;

FIG. 11 is a schematic flow chart of a CSI report configuration method according to an embodiment of the present application;

FIG. 12 is a schematic flowchart of another CSI report configuration method provided by an embodiment of the present application;

FIG. 13 is an example diagram of CSI-RS resource configuration in the CSI report configuration method related to the embodiment of the present application;

FIG. 14 is a diagram of another example of CSI-RS resource configuration in the CSI report configuration method involved in the embodiment of the present application;

FIG. 15 is a diagram of another example of CSI-RS resource configuration in the CSI reporting configuration method related to the embodiment of the present application;

FIG. 16 is an example flow chart of a CSI-RS resource capability reporting method and a CSI reporting configuration method for beam management related to an embodiment of the present application;

Figure 17 is a schematic diagram of a network device involved in an embodiment of the present application;

FIG. 18 is a schematic diagram of a terminal device involved in an embodiment of the present application;

FIG. 19 is a schematic diagram of a communication device related to an embodiment of the present application.

detailed description

The technical solution in this application will be described below in conjunction with the drawings.

The technical solution of the present application can be specifically applied to various communication systems. For example, with the continuous development of communication technology, the technical solution of this application can also be used in future networks, such as 5G systems, or new radio (NR) systems; or device to device (device to device). , D2D) system, machine to machine (M2M) system and so on.

The technical solution of the present application can also be applied to the vehicle to everything (V2X) technology (X stands for anything), and the communication method in the V2X system is collectively referred to as V2X communication. V2X communication is aimed at high-speed devices represented by vehicles. It is the basic technology and key technology applied in scenarios with very high communication delay requirements in the future, such as smart cars, autonomous driving, and intelligent transportation systems. For example, the V2X communication includes: vehicle-to-vehicle (V2V) communication, vehicle to roadside infrastructure (vehicle to infrastructure, V2I) communication, vehicle to pedestrian communication (vehicle to vehicle, V2V) pedestrian, V2P) or vehicle-to-network (V2N) communication, etc. The communication between the terminal devices involved in the V2X system is widely referred to as slide link (SL) communication. In other words, the terminal described in this application may also be a vehicle or a vehicle component applied to a vehicle.

Fig. 1 is a schematic diagram of a V2X system provided by an embodiment of the present application. The diagram includes V2V communication, V2P communication, and V2I/N communication.

As shown in Figure 1, vehicles or vehicle components communicate through V2V. Vehicles or vehicle components can broadcast their own speed, driving direction, specific location, whether emergency brakes are stepped on, and other information to surrounding vehicles. Drivers of surrounding vehicles can better perceive traffic conditions outside the line of sight by obtaining such information , So as to make advance judgments of dangerous situations and make avoidance; vehicles or vehicle components communicate with roadside infrastructure through V2I, and roadside infrastructure can provide various types of service information and data network access for vehicles or vehicle components . Among them, non-stop charging, in-car entertainment and other functions have greatly improved traffic intelligence. Roadside infrastructure, for example, roadside unit (RSU) includes two types: one is a terminal device type RSU. Since the RSU is distributed on the roadside, the RSU of this terminal equipment type is in a non-mobile state, and there is no need to consider mobility; the other is the RSU of the network equipment type. The RSU of this network device type can provide timing synchronization and resource scheduling for vehicles or vehicle components communicating with network devices. Vehicles or vehicle components communicate with people through V2P; vehicles or vehicle components communicate with the network through V2N. Among them, the network architecture and business scenarios described in the embodiments disclosed in this application are intended to more clearly illustrate the technical solutions of the embodiments disclosed in this application, and do not constitute a limitation on the technical solutions provided in the embodiments disclosed in this application. Ordinary technicians can know that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments disclosed in this application are equally applicable to similar technical problems.

FIG. 2 is an exemplary schematic diagram of a wireless communication network 200 provided according to an embodiment of the present application. As shown in FIG. 2, the wireless communication network 200 includes network devices 202-206 and terminal devices 208-222. The network devices 202-206 can communicate with each other through backhaul links (such as base stations 202-206). The backhaul link can be a wired backhaul link (for example, optical fiber, copper cable), or a wireless backhaul link (for example, microwave). The terminal devices 208-222 can communicate with the corresponding network devices 202-206 through wireless links (as shown by the broken lines between the base stations 202-206 and the terminal devices 208-222).

The network devices 202-206 are used to provide wireless access services for the terminal devices 208-222. Specifically, each network device corresponds to a service coverage area (as shown in each elliptical area in Figure 2), and terminal devices entering this area can communicate with the network device through wireless signals to receive the wireless provided by the network device. Access services. There may be overlaps between the service coverage areas of network equipment, and terminal equipment in the overlapping area can receive wireless signals from multiple base stations, so these network equipment can cooperate with each other to provide services for the terminal equipment . For example, multiple network devices may use coordinated multipoint (CoMP) technology to provide services for terminal devices in the above-mentioned overlapping area. For example, as shown in FIG. 2, the service coverage area of the network device 202 and the network device 204 overlaps, and the terminal device 222 is within the overlapped area. Therefore, the terminal device 222 can receive data from the network device 202 and the network device 204. The network device 202 and the network device 204 can cooperate with each other to provide services for the terminal device 222. For another example, as shown in FIG. 2, the service coverage area of the network device 202, the network device 204, and the network device 206 has a common overlapping area, and the terminal device 220 is within the overlapping area, so the terminal device 220 can receive Upon receiving wireless signals from the

network devices

202, 204, and 206, the

network devices

202, 204, and 206 can cooperate with each other to provide services for the terminal device 220.

The network device in the embodiment of the present application is a device in a wireless network, for example, a radio access network (RAN) node that connects a terminal to the wireless network. At present, some examples of RAN nodes are: gNB, transmission reception point (TRP), evolved Node B (evolved Node B, eNB), radio network controller (RNC), Node B (Node B) B, NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit) , BBU), or wireless fidelity (Wifi) access point (AP), the aforementioned network equipment or control equipment in the V2X car networking, etc.

In some deployments, the network equipment may include a centralized unit (CU) and a distributed unit (DU, distributed unit). The network device may also include a radio unit (RU). CU implements some functions of network equipment, DU implements some functions of network equipment, for example, CU implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions, DU implements Functions of radio link control (RLC), media access control (MAC) and physical (physical, PHY) layers. Since the RRC layer information will eventually become the physical layer information, or be transformed from the physical layer information, under this architecture, high-level signaling, such as RRC layer signaling or PHCP layer signaling, can also It is considered to be sent by DU or DU+RU. It can be understood that the base station may be a CU node, or a DU node, or a device including a CU node and a DU node. In addition, the CU can be divided into network equipment in the access network RAN, or the CU can be divided into network equipment in the core network (Core network, CN), which is not limited here.

In this application, the terminal may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless communication equipment , User agent or user device. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal device, and an augmented reality (AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in unmanned driving (self-driving), wireless terminals in remote medical, wireless terminals in smart grid, transportation safety ( The wireless terminal in transportation safety, the wireless terminal in the smart city, the wireless terminal in the smart home, the wireless terminal in the aforementioned V2X car networking or the wireless terminal type RSU, etc.

In order to facilitate the understanding of the embodiments disclosed in this application, the following descriptions are made.

(1) Some scenarios in the embodiments disclosed in this application are described by taking the scenario of an NR network in a wireless communication network as an example. It should be noted that the solutions in the embodiments disclosed in this application can also be applied to other wireless communication networks. The corresponding name can also be replaced with the name of the corresponding function in other wireless communication networks.

(2) The embodiments disclosed in this application will present various aspects, embodiments or features of this application around a system including multiple devices, components, modules, etc. It should be understood and understood that each system may include additional devices, components, modules, etc., and/or may not include all the devices, components, modules, etc. discussed in conjunction with the drawings. In addition, a combination of these schemes can also be used.

(3) In the embodiments disclosed in the present application, the term "exemplary" is used to indicate an example, illustration, or illustration. Described in this application

Any embodiment or design solution that is an "exemplary" should not be construed as being more preferable or advantageous than other embodiments or design solutions. Rather, the term example is used to present the concept in a concrete way.

(4) In the embodiments disclosed in this application, "of", "relevant" and "corresponding" can sometimes be used together. It should be noted that when the difference is not emphasized, The meaning to be expressed is the same.

(5) In the embodiments disclosed in this application, at least one can also be described as one or more, and the multiple can be two, three, four or more. In the embodiments disclosed in the present application, for a technical feature, it is distinguished by "first", "second", "third", "A", "B", "C", and "D". There is no sequence or size order among the technical features in the technical features.

Hereinafter, some terms in this application are explained to facilitate the understanding of those skilled in the art.

1. PMI codebook

In terms of types, PMI codebooks can be divided into Type I (Type I) and Type II (Type II). Type I is a feedback method based on PMI codebook with general channel space information; Type II is an enhanced feedback method based on partial explicit channel space information.

From the perspective of the number of panels, PMI codebooks can be divided into single panel and multiple panel. Single panel means that all antenna ports use the same clock, and the entire array forms a beam; each antenna array block in the multipanel has an independent clock, and each antenna array block can be far away.

The NR protocol supports 4 different types of PMI codebooks, namely Type I single panel (Type I single panel, Type I SP), Type I multiple panel (Type I multiple panel, Type I MP), Type II and Type II ports Selection (Type II port selection, Type II PS).

Generally speaking, terminal equipment can support multiple types of PMI codebooks, but not all types of PMI codebooks need to be supported. The terminal can report capability information to notify the network equipment of one or more types of PMI that it can support Codebook.

2. CSI measurement and reporting

As shown in Figure 3, the network device transmits CSI-RS to the terminal device through the wireless channel, and informs the terminal device to perform CSI measurement. The terminal device obtains CSI by measuring the received CSI-RS signal, and configures the uplink channel on the network device The CSI measurement result is reported on the resource. This process is called CSI measurement and reporting. Specifically, the network device configures CSI reporting to associate multiple CSI-RS resources, and the terminal device performs measurements based on these CSI-RS resources according to the configured codebook type, and then reports PMI and channel quality information (channel quality Information, CQI) , One or more types of CSI information in the Rank indication (RI). CSI measurement may also be called CSI estimation; CSI reporting may also be called CSI feedback.

2.1 Types of CSI reporting

CSI reporting can include three types: periodic CSI reporting (periodic CSI reporting), semi-persistent CSI reporting (semi-persistent CSI reporting), and aperiodic CSI reporting (aperiodic CSI reporting). Among them, semi-static CSI reporting is also called semi-persistent CSI reporting.

Periodic CSI reporting means that the base station configures the terminal to report the CSI at a fixed period through radio resource control (RRC) signaling, and the reporting period is in units of time slots.

Semi-static CSI reporting is triggered or deactivated by the base station through downlink signaling, which may be downlink control information (DCI). During the period between triggering or deactivation, the terminal device performs periodic CSI reporting.

Aperiodic CSI reporting means that the base station triggers the terminal device through downlink signaling, and the terminal device performs a CSI report after receiving the downlink signaling.

2.2 Duration of CSI reporting

The process of the terminal device performing CSI measurement and reporting will continue for a certain period of time, which is referred to as the CSI reporting duration in this application.

As shown in Figure 4: The process of periodic CSI measurement and reporting and semi-persistent CSI measurement and reporting starts from the earliest symbol of the CSI-RS before the CSI reference resource and ends at the end of the CSI report, the earliest symbol described here The duration until the end of CSI reporting is the periodic or semi-continuous CSI reporting duration. Within the CSI reporting duration, the terminal device performs periodic or semi-continuous CSI measurement and reporting. When a CSI-RS resource is configured for CSI channel measurement, the time domain position n _{CSI_ref} of the CSI reference resource is greater than or equal to the slot (n) where the CSI report is located

The smallest integer value of, where μ _DL is the downlink subcarrier spacing configuration parameter,

_{That is 4 milliseconds, the slot (n CSI_ref} ) in which the time domain position of the CSI reference resource is located is a valid downlink slot; when CSI measurement and reporting are based on multiple CSI-RS resources, the time domain position of the CSI reference resource is n _{CSI_ref} is greater than or equal to the slot (n) where CSI is reported

(Ie, 5 milliseconds) minimum integer value, the slot (n _{CSI_ref} ) where the time domain position of the CSI reference resource is located is a valid downlink slot.

As shown in Figure 5: the process of aperiodic CSI measurement and reporting starts from the first symbol after the terminal device receives the DCI trigger signaling that triggers CSI reporting to the uplink shared channel that carries CSI (Physical uplink share channel, PUSCH) until the last symbol, the duration from the first symbol to the last symbol described here is the duration of aperiodic CSI reporting; within the duration of CSI reporting, the terminal device performs aperiodic CSI measurement and Reported.

2.3 List of supported CSI-RS resources

The network device configures the PMI codebook for the terminal device in the CSI report configuration (CSI-ReportConfig) information. The terminal device estimates and feeds back the PMI based on the PMI codebook configured by the network device, and performs PMI based on the above 4 types of PMI codebooks The estimation method is different, and the complexity is also different, and this complexity is related to the parameters of the CSI measurement resource. In order to ensure that the CSI measurement of the terminal equipment scheduled by the network equipment does not exceed the capacity of the terminal equipment, the terminal equipment can be targeted The supported PMI codebook reports CSI-RS resource capability parameters. The CSI-RS resource capability parameters can also be referred to as a supported CSI-RS resource list (supportedCSI-RS-ResourceList). The supported CSI-RS resource list contains multiple CSI-RS parameter combination, each CSI-RS parameter combination includes: the maximum number of transmit ports in a single CSI-RS resource (maxNumberTxPortsPerResource, P _max ), and the maximum total number of all CSI-RS resources supported at the same time (maxNumberResources, R) , The maximum total number of transmit ports (totalNumberTxPortsPerBand, P _Total ) among all CSI-RS resources supported at the same time. The _{candidate value of P max} is {4,8,12,16,24,32}, the candidate value of R is an integer between 1 and 64, and the candidate value of P _Total is an integer between 2 and 256.

In the embodiments of the present application, the CSI-RS resource capability parameter, the CSI-RS resource list, and the combination of CSI-RS parameters can be mixed, and the meanings thereof are all CSI-RS resource conditions supported by the terminal device. Correspondingly, the CSI-RS resources used by the terminal when performing CSI reporting are referred to as processed CSI-RS resource parameters in the following.

3. Carrier aggregation

Carrier aggregation (CA) is a common technology for expanding the transmission rate of terminal equipment. By aggregating multiple carriers, the spectrum resources for data transmission can be expanded and the data transmission rate of terminal equipment can be increased.

In order to achieve efficient transmission on each carrier, it is necessary to perform CSI measurement on each carrier. However, due to the difference between the number of carriers supported by the terminal equipment and the number of carriers actually used in the communication process, the network equipment It will not always provide services for terminal equipment according to the number of carriers supported by the terminal equipment. In order to improve hardware usage efficiency, R and P _Total in each CSI-RS parameter combination for each PMI reported above actually defines: the total number of CSI-RS resources and ports simultaneously supported on all carriers; that is, R refers to: the maximum total number of CSI-RS resources simultaneously supported on all carriers, and P _Total refers to: the maximum total number of transmission ports simultaneously supported by all CSI-RS resources on all carriers.

In the CA technology, there are two types of CAs: Intra-band and Inter-band. In the embodiment of this application, the list of supported CSI-RS resources is within a frequency band, or all frequency bands, or all supported frequency bands between 410MHz and 7.125GHz, or supported within all supported frequency bands between 24.25GHz and 52.6GHz List of CSI-RS resources. _{Specifically, the parameters R and P Total} in the aforementioned CSI-RS parameter combination can have at least the following four meanings:

1) Indicate the maximum capability of the terminal equipment in a band;

That is, R is the maximum total number of all CSI-RS resources simultaneously supported by all CCs in a band (maxNumberResourcesPerBand indicates the maximum number of resources across all CCs within a band simultaneously); P _Total is the maximum number of resources supported by all CCs in a band simultaneously The maximum total number of transmit ports in all CSI-RS resources (totalNumberTxPortsPerBand indicates the total number of Tx ports across all CCs within a band simultaneously). The one frequency band is one of the frequency bands supported by the terminal device.

2) Indicate the maximum capability of the terminal equipment in all bands it supports;

That is, R is the maximum total number of all CSI-RS resources simultaneously supported by all CCs in all frequency bands supported by the terminal device (maxNumberResourcesAllBand indicates the maximum number of resources across all CCs within all band simultaneously); P _Total is all supports supported by the terminal The maximum total number of transmit ports in all CSI-RS resources simultaneously supported by all CCs in the frequency band (totalNumberTxPortsAllBand indicates the total number of Tx ports across all CCs within all band simultaneously);

3) Indicate the maximum capability of the terminal equipment in all supported bands between 410MHz and 7.125GHz (Frequency range 1, FR1);

That is, R is the maximum total number of all CSI-RS resources simultaneously supported by all CCs in all frequency bands supported by the terminal between 410MHz and 7.125GHz (maxNumberResourcesAllBand indicates the maximum number of resources across all CCs within all band simultaneously); P _Total is 410MHz From 7.125GHz, the maximum total number of transmit ports in all CSI-RS resources supported by all CCs in all frequency bands supported by the terminal at the same time (totalNumberTxPortsAllBand indicates the total number of Tx ports across all CCs within all band simultaneously);

4) Indicate the maximum capability of the terminal equipment in all supported bands between 24.25GHz and 52.6GHz (Frequency range 2, FR2);

That is, R is the maximum total number of all CSI-RS resources simultaneously supported by all CCs in all frequency bands supported by the terminal between 24.25GHz and 52.6GHz (maxNumberResourcesAllBand indicates the maximum number of resources across all CCs within all band simultaneously); P _Total is Between 24.25GHz and 52.6GHz, the maximum total number of Tx ports in all CSI-RS resources supported by all CCs in all frequency bands supported by the terminal at the same time (totalNumberTxPortsAllBand indicates the total number of Tx ports across all CCs within all band simultaneously).

The above-mentioned frequency range is only an example. With the development of technology, a new frequency range may be divided in the future. As long as the terminal that meets the design of the embodiment of this application reports the CSI-RS resource capability within a certain frequency range supported by it, it belongs to The protection scope of the embodiments of this application.

In the following, it will be described in detail how the terminal device and the network device cooperate, so that the multi-CSI reporting process can be processed without exceeding the hardware processing and computing capabilities of the terminal device.

As mentioned earlier, the terminal device can support multiple types of PMI codebooks at the same time. For ease of understanding, the following are listed in conjunction with Figure 6:

The terminal device reports the CSI-RS resource capability parameters supported by the Type I SP codebook, that is, the CSI-RS parameter combination {P _max , R, P _Total } is: {16,4,16}, {8,8,16}. {16,4,16} indicates that the terminal device can support CSI measurement and reporting based on the Type I SP codebook of the CSI-RS resource with no more than 4, maximum transmission ports no more than 16, and total transmission ports no more than 16. {8,8,16} means that the terminal device can support CSI estimation and reporting based on the Type I SP codebook of the CSI-RS resource with no more than 8, the maximum transmission port no more than 8, and the total transmission port no more than 16.

It should be noted that the terminal device can report different types of supported PMI codebooks in different ways. Specifically, it can report the types of supported PMI codebooks explicitly, or report the supported PMI codebooks implicitly. The type of PMI codebook, for example, a fixed data structure is used. This data structure includes 4 data units, and each data unit stores a fixed type of PMI codebook's capability parameters, for example, unit 1 stores Type I SP Capability parameters supported by the codebook; unit 2 stores the capability parameters supported by the Type I MP codebook; unit 3 stores the capability parameters supported by the Type II codebook; unit 4 stores the capability parameters supported by the Type II PS codebook. When the terminal device supports Type I SP and Type II codebooks, then in the above data structure reported by the terminal device, there are corresponding capability parameters in unit 1 and unit 3, and the unit 2 and unit 4 are empty. of. At this time, when the network device receives the data structure reported by the terminal device, it can determine that the type of the PMI codebook supported by the terminal device is Type I SP and Type II codebook. How the terminal device reports the corresponding type of PMI codebook is only an example, and the embodiment of the present application is not limited to this.

The terminal device further reports the CSI-RS resource capability parameters supported by the Type II codebook, that is, the CSI-RS parameter combination {P _max , R, P _Total } is: {16,4,16}, {8,8,16}. {16,4,16} means that the terminal device can support CSI measurement and reporting based on Type II codebook of CSI-RS resource with no more than 4, maximum transmission ports no more than 16, and total transmission ports no more than 16; {8, 8,16} means that the terminal device can support CSI measurement and reporting based on the Type II codebook of the CSI-RS resource with no more than 8, the maximum transmission port no more than 8, and the total transmission port no more than 16.

The terminal device further reports the CSI-RS resource capability parameters supported by the Type II PS codebook, that is, the CSI-RS parameter combination {P _max ,R,P _Total } is: {16,4,16}, {8,8,16} . {16,4,16} means that the terminal equipment can support CSI measurement and reporting based on the Type II PS codebook based on the CSI-RS resource with no more than 4, maximum transmission ports no more than 16, and total transmission ports no more than 16; {8 ,8,16} means that the terminal device can support CSI measurement and reporting based on the Type II PS codebook of the CSI-RS resource with no more than 8, maximum transmission ports no more than 8, and total transmission ports no more than 16.

_{The above-mentioned terminal equipment is based on the largest CSI-RS parameter combination {P max} , R, when only the CSI reporting based on the Type I SP codebook or the Type II codebook or the Type II PS codebook is configured separately P _Total } Designed for its hardware processing and computing capabilities. If the network device configures the terminal device to report the CSI of the Type I SP codebook based on the maximum CSI-RS resource capacity parameter reported by it, that is, the CSI-RS of the CSI-RS parameter combination {P _max , R, P _{Total }, and the network device} If the terminal device is configured to report CSI based on the Type II codebook or the Type II PS codebook, it will inevitably exceed the actual hardware processing and calculation capabilities of the terminal device.

Correspondingly, the network equipment configures the terminal equipment to report the CSI of the Type II codebook based on the maximum CSI-RS resource capacity parameter reported by it, that is, the CSI-RS of the CSI-RS parameter combination {P _max , R, P _{Total }, and the network} The device configures the terminal device to report CSI based on the Type I SP or Type II PS codebook, which will inevitably exceed the actual hardware processing and computing capabilities of the terminal device.

In the above example, when the terminal device independently supports feedback based on the Type I SP codebook or the Type II codebook, the supported CSI-RS resource capability parameters, that is, the CSI-RS parameter combination {P _max , R, P _Total } are the same In other words, when the network device configures the terminal device to report CSI based on the Type I SP codebook, it also configures the terminal device to report CSI based on the Type II codebook. At this time, the two types of CSI reports configured at the same time correspond to The total CSI-RS resources should be limited to the CSI-RS parameter combination reported by the terminal: {16,4,16} or {8,8,16}; if not restricted, Type I SP codebook and Type II code This CSI report is carried out with the largest CSI resource capacity. The terminal device needs to support the total CSI-RS parameter combination {16,8,32}, {8,16,32}, which obviously exceeds the actual hardware of the terminal device Processing and computing power.

FIG. 6 illustrates that the terminal device separately reports the CSI-RS resource capability parameters supported by multiple types of PMI codebooks. The following takes FIG. 7 as an example to illustrate the process of the network device configuring the terminal device to report multiple CSI. Fig. 7 is an example of triggering a terminal device to report aperiodic CSI through DCI signaling. Periodic or semi-static CSI reporting is similar.

The network device triggers the terminal device to report 1 CSI based on the Type I SP codebook of a CSI-RS resource with 16 transmit ports through trigger signaling 1, which is recorded as CSI report 1;

Before the CSI report 1 is completed, the network device triggers the terminal device to report the CSI based on the Type II codebook of a CSI-RS resource with 16 transmit ports through trigger signaling 2, which is recorded as CSI report 2;

Before CSI report 1 and CSI report 2 are completed, the network device triggers the CSI report of the terminal device based on the Type II PS codebook of a CSI-RS resource with 16 transmit ports through trigger signaling 3, which is recorded as CSI report 3.

For the duration of CSI report 1, CSI report 2, and CSI report 3, see the description of "2.2 CSI report duration". The duration of CSI report 1, CSI report 2, and CSI report 3 overlap. For ease of explanation, When the trigger signaling 1 of CSI report 1 is received, it is divided into 5 areas in time until the CSI report 3 completes the report. The situation of the CSI report that the terminal device needs to process in each area is as follows:

Area 1: The terminal device only needs to process CSI report 1. The total processed CSI-RS resource parameters {the maximum number of transmission ports in one CSI-RS resource, the number of CSI-RS resources, and the transmission in all CSI-RS resources The total number of ports} can be expressed as {16,1,16};

Area 2: The terminal device needs to process CSI report 1 and CSI report 2, and the total processed CSI-RS resource parameter is expressed as {16,2,32};

Area 3: The terminal device needs to process CSI report 1, CSI report 2, and CSI report 3 at the same time, and the total processed CSI-RS resource parameter is expressed as {16, 3, 48};

Area 4: The terminal device needs to process CSI report 2 and CSI report 3 at the same time, and the total processed CSI-RS resource parameter is expressed as {16,2,32};

Area 5: The terminal device needs to process the CSI report 3. The total processed CSI-RS resource parameter is expressed as {16, 1, 16}.

Based on the above description, in addition to time zones 1 and 5, the terminal equipment needs to process 2 or 3 CSI reports at the same time, and the number of CSI-RS resources that need to be processed at the same time is 2 or 3, and the total number of transmission ports is 32 Or 48, that is, the total processed CSI-RS resource parameter is {16,2,32} or {16,3,48}, and the reported capability of the terminal device actually indicates a certain codebook type of CSI report The upper limit when independently triggered, in other words, the total capability of the terminal device can only support the CSI-RS resource configuration of the CSI-RS resource parameter {16,4,16} or {8,8,16}. In Figure 7, in time zones 2, 3, and 4, the hardware processing and computing capabilities of the terminal device cannot handle 2 or 3 CSI reports at the same time. At this time, the terminal device will run incorrectly, causing network interruption.

To solve the above problems, one method is to reduce the CSI-RS resource capability parameters reported by the terminal equipment in proportion to the number of supported codebooks. For example, as shown in 8, the terminal equipment is based on Type I SP codebook and Type II codebook CSI measurement and reporting, and CSI-RS resource capabilities that can be supported by the hardware processing and computing capabilities of the terminal device when the CSI reporting based on the Type I SP codebook and the CSI reporting based on the Type II codebook are not configured for simultaneous processing The parameters {P _max ,R,P _Total } are all: {16,4,16}, {8,8,16}. _{The CSI-RS resource parameters {P max} , R, P _Total } that can be supported by the hardware processing and computing capabilities of the terminal described here are also called CSI-RS resource parameters {P _max , R, P _Total } processed by the terminal equipment .

In order to prevent multiple CSI reports measured based on different types of PMI codebooks from being configured for simultaneous processing, the hardware processing and computing capabilities required for simultaneous processing exceed the actual hardware processing and computing capabilities of the terminal device, the terminal device reports the Type I SP codebook and Type The CSI-RS resource capability parameters {P _max , R, P _Total } of the II codebook are all: {8,4,8}. The reason why only one CSI-RS resource capability parameter is reported is because according to the number of PMI codebooks Conversion, the terminal equipment should report {16,2,8}, {8,4,8}, note that: P _max does not need to be converted, because P _max represents the maximum transmission within 1 CSI-RS resource Number of ports. For {16,2,8}, there is no need to report. There are two main reasons: First, when P _Total =8, the maximum transmission port P _{max in} one CSI-RS resource cannot be greater than 8, so P _max = 16 is unreasonable and can only be reported {8,2,8}; further, reporting {8,2,8} is also unnecessary, because the terminal device will also report {8,4,8}, which is the latter CSI- The RS resource capability parameters have already covered {8,2,8}, and there is no point in reporting again.

As shown in FIG. 9, based on the foregoing terminal device capability reporting, the network device triggers the terminal device to report CSI 1 based on the Type I SP codebook of 1 CSI-RS resource, which has 8 transmission ports. Before the CSI report 1 is completed, the terminal device is triggered to report CSI 2 based on the Type II codebook of 1 CSI-RS resource (with 8 transmitting ports).

Area 1: The terminal device only needs to process CSI report 1, and the total processed CSI-RS resource parameters are {8,1,8};

Area 2: The terminal device needs to process CSI report 1 and CSI report 2, and the total processed CSI-RS resource parameter is expressed as {8,2,16};

Area 3: The terminal device only needs to process CSI report 3, and the total processed CSI-RS resource parameter is {8,1,8}.

At this time, even in time zone 2 that requires the highest hardware processing and computing capabilities, the corresponding total processed CSI-RS resource parameter is {8, 2, 16}, which is within the actual processing capability of the terminal device.

What has been described above is the method of proportionally reducing the number of supported codebooks when the CSI-RS resource capability parameters reported by the terminal device. The following embodiment 1 describes the CSI resource capability reporting method provided by the embodiment of this application.

Example one

In the first embodiment, the terminal device is restricted to report the same CSI-RS resource capability parameters for the different types of PMI codebooks supported, and the network device is further restricted to configure multiple CSI reporting based on different types of PMI codebooks for the terminal device. The corresponding total CSI-RS resources are restricted according to any CSI-RS resource capability parameter or a common CSI-RS resource capability parameter.

Specifically, referring to FIG. 10, the CSI resource capability reporting method provided in the first embodiment includes:

Step 100: Determine all types of PMI codebooks supported by the terminal equipment and a list of CSI-RS resources supported by all types of PMI codebooks; the list of CSI-RS resources supported by all types of PMI codebooks is the same; where , CSI-RS resource list includes one or more sets of CSI-RS parameter combinations, each set of CSI-RS parameter combinations includes: the maximum number of transmission ports (P _max ) in a single CSI-RS resource, and all CSI-RS supported at the same time The maximum total number of resources (R), and the maximum total number of transmit ports (P _Total ) in all CSI-RS resources supported at the same time.

Step 101: Report a list of CSI-RS resources supported by all types of PMI codebooks supported by the terminal device to the network device.

To implement the method provided by the first method, the terminal device sets the CSI-RS resource list supported by all types of PMI codebooks to be the same, and reports it to the network device so that the network device can configure the terminal device based on multiple types at the same time When multiple CSI reports of the PMI codebook are reported, only the list of CSI-RS resources supported by all types of PMI codebooks reported by the terminal need to be considered, and the total CSI-RS resources required to process multiple CSI reports are limited to the common support The CSI-RS resource list corresponds to the CSI-RS resource capability range, which effectively prevents the CSI measurement and reporting from exceeding the terminal equipment hardware processing and computing capabilities, and at the same time can improve the utilization of terminal equipment hardware resources.

Specifically, to realize that the terminal equipment reports the same supported CSI-RS resource list corresponding to different codebook types, two methods can be used:

Method 1: Report to the network device a list of supported CSI-RS resources corresponding to each type of PMI codebook it supports. In other words, for each supported codebook type, the terminal device reports the supported CSI-RS resource list {P _max , R, P _Total }, and the list supported by each PMI codebook is exactly the same. For example, if the terminal device supports Type I SP codebook and Type II codebook, then the terminal device reports that the CSI-RS resource list supported by the corresponding Type I SP codebook is: {16,4,16}, {8,8, 16}, {4,8,16}, {2,8,16}, the corresponding CSI-RS resource list supported by Type II codebook is also: {16,4,16}, {8,8,16}, {4,8,16}, {2,8,16}.

Method 2: Report to the network device a list of CSI-RS resources jointly supported by all types of PMI codebooks supported by it. In other words, for each type of PMI codebook supported, the terminal device reports a common list of supported CSI-RS resources, and the list is specific to each supported codebook type. For example, if the terminal device supports Type I SP codebook and Type II codebook, then the terminal device reports information to notify the network device that it supports the corresponding codebook type, and then reports the CSI- which is supported by both Type I SP codebook and Type II codebook. RS resource list: {16,4,16}, {8,8,16}, {4,8,16}, {2,8,16}, that is, the list is applicable to Type I SP codebook and Type II codebook.

The list of supported CSI-RS resources involved in Method 1 and Method 2 can be in a frequency band, or in all frequency bands, or in all supported frequency bands between 410MHz and 7.125GHz, or in all frequency bands between 24.25GHz and 52.6GHz List of supported CSI-RS resources. _{For details, please refer to the meaning of the parameters of R and P Total} in the CSI-RS resource list in different frequency domains in the section "3. Carrier Aggregation", which will not be repeated here.

The scope of application of the CSI-RS resource list in all the embodiments of this application can be determined according to the actual frequency band range. For example, reporting the CSI-RS resource list for a certain frequency band can achieve more accurate reporting; and for terminal equipment support All frequency bands or all frequency bands between 410MHz and 7.125GHz, or all frequency bands between 24.25GHz and 52.6GHz can report the CSI-RS resource list in a unified manner. Compared with reporting in one frequency band, the reporting cost can be saved, and it can also Reduce the processing complexity of terminal equipment.

Correspondingly, based on the CSI-RS resource capability parameters reported by the terminal equipment, a method for configuring channel state information CSI reporting is provided.

When the network device configures CSI reporting, if only one type of CSI codebook type CSI is reported at the same time, the corresponding CSI-RS resource configuration is configured according to the supported CSI-RS resource list reported by the terminal device, as shown in the figure 8. According to the CSI-RS resource capability parameters reported by the terminal equipment, the network equipment normally configures the terminal equipment to report CSI, and CSI report 1 and CSI report 2 are not performed at the same time, so the hardware processing and computing capabilities of the terminal equipment are not exceeded.

When the network device configures CSI reporting, if multiple types of PMI codebooks are configured for CSI reporting at the same time, it needs to be based on the supported CSI-RS resource list {P _max , R, P _Total } reported by the terminal device. The total number of CSI-RS resources corresponding to the configured CSI report is restricted or restricted.

Specifically, as shown in FIG. 11, the CSI report configuration method provided in the first embodiment includes the following steps:

Step 110: Receive the channel state information reference signal CSI-RS resource list supported by all types of PMI codebooks reported by the terminal equipment; the CSI-RS resource lists supported by all types of PMI codebooks are the same;

Step 111: The network device simultaneously configures multiple CSI reports for the terminal device, and the multiple CSI reports are for multiple types of PMI codebooks;

It should be noted that the multiple types of PMI codebooks for which multiple CSI configured by the network device are targeted may be all or part of all the supported PMI codebooks reported by the terminal device.

Step 110 is implemented in at least two ways. One way is that the receiving terminal device reports the list of CSI-RS resources supported by all types of PMI codebooks it supports; the other way is that the receiving terminal device reports the list of supported CSI-RS resources. Each PMI codebook of each PMI codebook type corresponds to a list of the supported CSI-RS resources. The network device parses the supported CSI-RS resource list to obtain one or more sets of CSI-RS parameter combinations, and each set of CSI-RS parameter combinations includes: the maximum number of transmission ports (P _max ) in a single CSI-RS resource, The maximum total number of all CSI-RS resources supported at the same time (R), and the maximum total number of transmission ports (P _Total ) in all the CSI-RS resources supported at the same time.

Step 112: Limit the total number of CSI-RS resources corresponding to the multiple CSI reports according to the supported CSI-RS resource list.

To implement the first embodiment, the network device receives a list of CSI-RS resources that are commonly supported by all types of PMI codebooks that the terminal device supports, and the network device configures the terminal device based on multiple types of PMI codebooks at the same time. When multiple CSI reports are reported, only the list of CSI-RS resources supported by all types of PMI codebooks reported by the terminal need to be considered, and the total CSI-RS resources required to process multiple CSI reports are limited to the CSI-RS supported jointly Within the scope of the CSI-RS resource capacity corresponding to the resource list, it effectively prevents the CSI measurement and reporting from exceeding the hardware processing and calculation capabilities of the terminal equipment, and at the same time can improve the utilization of the terminal equipment hardware resources.

The network device limits the total number of CSI-RS resources corresponding to the multiple CSI reports according to the supported CSI-RS resource list, that is, restricts the total number of CSI-RS resources corresponding to the CSI reports that are configured and processed at the same time, specifically : Limit the maximum number of transmission ports in a single CSI-RS resource corresponding to a single CSI report to be less than or equal to the maximum number of transmission ports in a single CSI-RS resource in a set of CSI-RS parameter combinations (P _max ); and limit the maximum total number of all CSI-RS resources corresponding to the multiple CSI reports to be less than or equal to the maximum total number of all CSI-RS resources simultaneously supported in the same set of CSI-RS parameter combinations ( R); and limit the maximum total number of transmit ports in all CSI-RS resources corresponding to multiple CSI reports to be less than or equal to the maximum of all CSI-RS resources simultaneously supported in the same set of CSI-RS parameter combinations The total number of transmit ports (P _Total ).

It should be noted that if the terminal device uses the aforementioned method 1 to report the supported CSI-RS resource list, since the list supported by each supported codebook type is the same, the aforementioned supported CSI-RS resource list can be any A list of CSI-RS resources supported by a supported codebook type.

Assuming that the terminal device supports Type I SP codebook and Type II codebook, then the terminal device reports that the corresponding CSI-RS resource list supported by Type I SP and Type II codebooks is: {16,4,16}, {8,8 ,16}, {4,8,16}, {2,8,16}.

When the network device only configures terminal equipment to report routine CSI based on a PMI codebook at the same time, for example, only configures CSI report processing based on Type I SP codebook, or only configures terminal equipment to perform CSI report processing based on Type II codebook :

The network device can configure the terminal device to process 1 CSI report, the CSI report is based on 1 CSI-RS resource, and the CSI-RS resource has 16 transmission ports;

Or the network device configures the terminal device to process 1 CSI report, and the CSI report is based on 2 CSI-RS resources; each CSI-RS resource has 8 transmission ports;

Or the network device configures the terminal device to process 2 CSI reports at the same time, and each CSI report is based on 1 CSI-RS resource with 8 transmission ports;

Or the network device configures the terminal device to process two CSI reports at the same time, one of which is based on 1 CSI-RS resource, and the CSI-RS resource has 8 transmission ports; while the other CSI report is based on 2 CSI-RS resources, each Each CSI-RS resource has 4 transmission ports;

Or the network device configures the terminal device to process 3 CSI reports at the same time, one of the CSI reports is based on 1 CSI-RS resource, the CSI-RS resource has 8 transmission ports, and the other two CSI reports are based on 1 CSI-RS resource respectively , Each CSI-RS resource has 4 transmission ports. At this time, the maximum number of transmission ports for a single CSI-RS resource is 8, the total number of CSI-RS resources is 3, and the total number of transmission ports for all CSI-RS resources is 16, which meets the CSI-RS reported by the terminal device Resource capacity

Or the network device configures the terminal device to process 4 CSI reports at the same time, one of which is based on 1 CSI-RS resource, the CSI-RS resource has 8 transmitting ports, and the other three CSI reports are based on 1 CSI-RS resource. , Each CSI-RS resource has 2 transmitting ports. At this time, the maximum number of transmission ports for a single CSI-RS resource is 8, the total number of CSI-RS resources is 4, and the total number of transmission ports for all CSI-RS resources is 14, which meets the CSI-RS reported by the terminal device Resource capacity

By analogy, other examples that meet the conditions will not be cited one by one.

When the network device simultaneously configures the terminal device to perform CSI report processing based on the Type I SP codebook and Type II codebook:

The network equipment configures the terminal equipment to process 2 CSI reports at the same time. One CSI report is based on 1 CSI-RS resource, and the CSI-RS resource has 8 transmission ports, and performs CSI report based on Type I SP codebook; the other CSI report is based on 1 CSI-RS resource, the CSI-RS resource has 8 transmitting ports, and CSI reporting is based on the Type II codebook. At this time, the total number of CSI-RS resources corresponding to the two CSI reports is: a single CSI-RS resource The maximum number of transmission ports is 8, the total number of CSI-RS resources is 2, and the total number of transmission ports for all CSI-RS resources is 16, which meets the CSI-RS resource capacity reported by the terminal device;

Or the network device configures the terminal device to process 2 CSI reports at the same time, one of which is based on 1 CSI-RS resource, the CSI-RS resource has 8 transmission ports, and the CSI report is based on the Type II codebook; and the other CSI Reporting is based on 2 CSI-RS resources, each CSI-RS resource has 4 transmission ports, and CSI reporting is performed based on the Type I SP codebook. At this time, the total number of CSI-RS resources corresponding to the two CSI reports is: the maximum number of transmission ports for a single CSI-RS resource is 8, the total number of CSI-RS resources is 3, and the total number of all CSI-RS resources The number of transmitting ports is 16, which meets the CSI-RS resource capacity reported by the terminal equipment;

Or the network equipment configures the terminal equipment to process 3 CSI reports at the same time, one of which is based on 1 CSI-RS resource, the CSI-RS resource has 8 transmission ports, and the CSI report is based on the Type II codebook; and the other two CSI reporting is based on 1 CSI-RS resource, each CSI-RS resource has 4 transmission ports, and CSI reporting is performed based on the Type I SP codebook. At this time, the total number of CSI-RS resources corresponding to the two CSI reports is: the maximum number of transmission ports for a single CSI-RS resource is 8, the total number of CSI-RS resources is 3, and the total transmission of all CSI-RS resources The number of ports is 16, which meets the CSI-RS resource capacity reported by the terminal equipment;

Or the network device configures the terminal device to process 4 CSI reports at the same time, one of which is based on 1 CSI-RS resource, the CSI-RS resource has 8 transmitting ports, and the CSI report is based on the Type II codebook, and the other three CSI reporting is based on 1 CSI-RS resource, each CSI-RS resource has 2 transmission ports, and CSI reporting is based on the Type I SP codebook. At this time, the total number of CSI-RS resources corresponding to the two CSI reports is: the maximum number of transmission ports for a single CSI-RS resource is 8, the total number of CSI-RS resources is 4, and the total transmission of all CSI-RS resources The number of ports is 14, which meets the CSI-RS resource capacity reported by the terminal equipment;

The first embodiment can ensure that when the network device is configured with multiple CSI reports based on different types of codebooks at the same time, the CSI-RS resource parameters do not exceed the CSI-RS resource capacity reported by the terminal device, and the network device only configures the same When a codebook type of CSI is reported, the CSI-RS resource parameters match the actual capabilities of the terminal device.

In comparison, the aforementioned CSI-RS resource capability parameters reported by the terminal equipment are scaled down according to the number of codebooks supported. For example, the terminal equipment supports Type I SP codebook and Type II codebook, corresponding to Type I SP The list of CSI-RS resources supported by the codebook and Type II codebook are: {16,4,16}, {8,8,16}, {4,8,16}, {2,8,16}, According to the proportional reduction of the number of supported codebooks, only {8,4,8} can be reported. At this time, even if the network device only configures the terminal device to report the CSI of the Type I SP codebook, at this time, the largest CSI-RS The resource transmission port can only be configured with 8 ports, which will greatly limit the CSI feedback performance of the terminal device. In fact, the terminal device can handle the CSI-RS resources of 16 transmission ports at this time, which will cause a waste of terminal device hardware. In the first embodiment, when the network device only configures the terminal device to report the CSI of the Type I SP codebook or the Type II codebook, the largest CSI-RS resource transmission port is 16 ports, which greatly utilizes the terminal reporting The maximum number of transmission ports supported, and when both Type I SP codebook and Type II codebook are configured for CSI reporting, the CSI-RS resources will not exceed the hardware calculation and processing capabilities of the terminal device.

The foregoing first embodiment mainly describes the process of restricting the CSI-RS resource capability parameters reported by the terminal equipment and determining the CSI reporting parameters by the network equipment. In the following, the second embodiment is used to describe another CSI report configuration method provided by the embodiment of the present application.

Example two

In the second embodiment, there is no restriction on the CSI-RS resource capability reported by the terminal device. However, when the network device schedules multiple CSI reports based on different types of PMI codebooks, the terminal device reports the corresponding different codebook types. The CSI-RS resource capability parameters and preset rules constrain the total CSI-RS resources, and according to the constraint conditions, simultaneously configure multiple CSI reports based on different types of codebooks.

Referring to FIG. 12, the CSI report configuration method provided in the second embodiment includes:

Step 120: The receiving terminal device reports a list of CSI-RS resources supported by each PMI codebook in all types of PMI codebooks it supports; when the terminal device supports multiple types of codebooks, the terminal device reports the corresponding different codes The supported CSI-RS resource list of this type may be the same or different. There is no restriction in the second embodiment, and the terminal device reports the CSI-RS resource capability parameter according to actual conditions.

Step 121: Determine, according to the supported CSI-RS resource list, according to preset rules, to configure multiple CSI reports corresponding CSI configuration parameters for the terminal device at the same time, and the multiple CSI reports are for all supported PMIs Multiple types of PMI codebooks in the codebook.

The method provided in the second embodiment does not restrict the CSI-RS resource list reported by the terminal device, and the terminal reporting capability is more flexible; in addition, the network device will process the total CSI-RS required for multiple CSI reporting according to certain preset rules. The RS resource is limited to the CSI-RS resource capacity specified by the preset rules, which effectively prevents the CSI measurement and reporting from exceeding the terminal equipment hardware processing and computing capacity, and at the same time improves the utilization of the terminal equipment hardware resources.

When the network device only configures CSI reporting of one type of PMI codebook, it can be configured directly according to the CSI-RS resource list supported by the PMI codebook reported by the terminal device.

When a network device is configured to report CSI of PMI codebooks supported by multiple different terminal devices, it first determines the hybrid configuration according to the CSI-RS resource list supported by the various types of PMI codebooks reported by the terminal device according to the preset rules The list of total supported CSI-RS resources.

The preset rule is any one of the following:

The first rule: among all types of PMI codebooks supported by the terminal device, the CSI-RS resource list supported by the PMI codebook with the highest priority is used as the CSI-RS resource list corresponding to the multiple CSI reporting.

The second rule: when all types of PMI codebooks supported by the terminal device include a predetermined type of PMI codebook, the CSI-RS resource list supported by the predetermined type of PMI codebook is reported as the multiple CSI The corresponding CSI-RS resource list.

One way to determine the priority is that the priority of the PMI codebook is determined according to the complexity of the PMI codebook. In this way, the network device considers the CSI corresponding to the most complex PMI codebook processed by the terminal device. The hardware processing and computing capabilities required for reporting are completely within the terminal's hardware processing and computing capabilities for the processing of CSI reporting corresponding to the PMI codebook with lower complexity.

Another way to determine the priority is that the priority of the PMI codebook is determined according to the frequency of use of the PMI codebook. In this way, the network equipment takes into account the hardware processing and computing capabilities required by the terminal equipment to process the CSI reports corresponding to the most commonly processed PMI codebook types, and can handle the CSI reports corresponding to most types of PMI codebooks. The network interruption caused by the operation error of the terminal equipment is greatly reduced.

In the second rule, the network equipment and the terminal equipment negotiate a list of CSI-RS resources supported by one or more predetermined types of PMI codebooks. When the PMI codebook reported by the terminal belongs to a predetermined type of PMI codebook, then The CSI-RS resource list supported by the predetermined type of PMI codebook is used as the multiple CSI reporting corresponding CSI-RS resource lists. The predetermined PMI codebook can be the PMI codebook with the highest priority, the PMI codebook with the highest complexity, or the PMI codebook with the highest usage. In short, it can be determined according to the actual capabilities of the terminal device. . In this way, the network interruption caused by the operation error of the terminal device can also be greatly reduced.

In the following, the priority of the PMI codebook is determined according to the complexity of the PMI codebook as an example to illustrate that when a network device configures multiple different types of PMI codebooks for CSI reporting, it will be based on the various types of PMI codes reported by the terminal device. The supported CSI-RS resource list is a process of determining the total supported CSI-RS resource list of the hybrid configuration according to the CSI-RS resource capability parameters supported by the PMI codebook with the highest priority.

If the terminal device supports Type I SP codebook and Type II codebook, then the terminal device reports, the corresponding CSI-RS resource list supported by Type I SP codebook is: {16,4,16}, {8,8,16} , {4,8,16}, {2,8,16}, the CSI-RS resource list supported by the corresponding Type II codebook is: {8,2,8}, {4,4,8}, {2, 4,8}.

The priority of the PMI codebook is from high to low: Type II codebook, Type I MP codebook, Type I SP codebook, Type II PS codebook. Since the Type II codebook has a higher priority than the Type I SP codebook, when the network device configures the terminal device to report CSI based on different codebook types at the same time, it should be based on the CSI-RS supported by the Type II codebook reported by the terminal device The resource list, namely {8,2,8}, {4,4,8}, {2,4,8}, to restrict or limit the total CSI-RS resources reported by CSI, specifically:

Referring to Figure 13, in area 2, the network device configures the terminal device to process 2 CSI reports at the same time. CSI report 1 is based on the Type I SP codebook and is based on 1 CSI-RS resource, which has 4 transmit ports ; CSI report 2 is based on Type II codebook and based on 1 CSI-RS resource, which has 4 transmission ports. At this time, the total number of CSI-RS resources corresponding to the two CSI reports is: the maximum number of transmission ports for a single CSI-RS resource is 4, the total number of CSI-RS resources is 2, and the total transmission of all CSI-RS resources The number of ports is 8, which meets the CSI-SR resource capacity reported by the terminal device.

Or, referring to Figure 14, in area 3, the network device configures the terminal device to process 3 CSI reports at the same time. CSI report 1 is based on the Type I SP codebook and is based on 1 CSI-RS resource. The CSI-RS resource has 4 Two transmission ports; the other two CSI reports, namely CSI report 2 and CSI report 3, are based on Type II codebooks, and are respectively based on 1 CSI-RS resource, and the CSI-RS resource has 2 transmission ports. At this time, the total number of CSI-RS resources corresponding to the three CSI reports is: the maximum number of transmission ports for a single CSI-RS resource is 4, the total number of CSI-RS resources is 3, and the total transmission of all CSI-RS resources The number of ports is 8, which meets the CSI-RS resource capacity reported by the terminal device.

An example of incorrect configuration is given below: See Figure 15. In area 2, the network device configures the terminal device to process 2 CSI reports at the same time. CSI report 1 is based on Type I SP codebook and based on 1 CSI-RS resource The CSI-RS resource has 8 transmission ports; the CSI report 2 is based on Type II codebook and is based on 1 CSI-RS resource, and the CSI-RS resource has 2 transmission ports. At this time, the total number of CSI-RS resources corresponding to the two CSI reports is: the maximum number of transmission ports for a single CSI-RS resource is 8, the total number of CSI-RS resources is 2, and the total transmission of all CSI-RS resources The number of ports is 10, and according to the CSI-RS resource list supported by Type II codebook, when the maximum transmission port of a single CSI-RS resource is 8, the number of CSI-RS resources is not more than 2, and the total of all CSI-RS resources The number of transmit ports does not exceed 8. In the above configuration, the total number of transmit ports is 10, which exceeds the maximum CSI-RS resource capacity of the terminal device, so it is an incorrect configuration.

This second embodiment can ensure that when the network device is configured with multiple CSI reports based on different types of PMI codebooks at the same time, the total CSI-RS resource does not exceed the CSI-RS resource capacity reported by the terminal device, and the network device only configures When the CSI of the same type of PMI codebook is reported, the actual hardware processing and computing power of the terminal device will not be wasted.

Example three

In the beam management capability report, the terminal device reports the maximum number of CSI-RS resources for beam management that it supports for one transmit port and the maximum number of CSI-RS resources for beam management for two transmit ports. In fact, in the implementation of terminal equipment, the hardware resources required for the CSI-RS resources used for beam management of one transmit port and two transmit ports are shared, in other words, it is actually one The total number of CSI-RS resources used for beam management of the transmitting port and the two transmitting ports has an impact on the hardware storage resources of the terminal device.

If according to the existing method, the terminal equipment has the maximum number of CSI-RS resources for beam management on one transmit port and the maximum number of CSI-RS resources for beam management on two transmit ports, then in order to ensure that the terminal The hardware storage resources of the device When the network device simultaneously schedules the CSI-RS resource of 1 transmit port and the CSI-RS resource of 2 transmit ports for beam management, the CSI-RS resource of 1 transmit port and the CSI of 2 transmit ports -The total number of RS resources is within the capability of the terminal device, then the terminal device can only report lower capability parameters, which will affect the network device to only schedule CSI-RS resources for one transmit port or only schedule CSI for two transmit ports- The performance of RS resources for beam management. For example, the hardware resources of the terminal equipment can support 32 CSI-RS resources of 1 transmission port or 2 transmission ports, and in order to cope with the network equipment scheduling CSI-RS resources of 1 transmission port and CSI-RS resources of 2 transmission ports to beam In the management scenario, the terminal device can only report the CSI-RS resources for beam management that support 16 1-transmit ports and 16 2-transmit ports. At this time, when the network device schedules the terminal device to perform beam management, it can only configure a maximum of 16 CSI-RS resources of 1 transmit port individually, or only configure a maximum of 16 CSI-RS resources of 2 transmit ports individually. It should be noted that in actual scenarios, the possibility that the network device simultaneously schedules the CSI-RS resources of one transmit port and the CSI-RS resources of two transmit ports for beam management is very low.

In order to solve the problem of reporting the existing CSI-RS resource capacity for beam management, the terminal equipment currently reports the maximum number of CSI-RS resources for beam management for 1 transmit port and 2 transmit ports, and then additional Report the maximum number of the total number of CSI-RS resources used for beam management of 1 transmitting port plus 2 transmitting ports. This solution can well solve the above-mentioned problems.

Referring to FIG. 16, a schematic flowchart of a CSI-RS resource capability reporting and CSI reporting configuration method for beam management provided by this application includes:

Step 130: Determine the maximum number of CSI-RS resources of one transmit port used for beam management and the maximum number of CSI-RS resources of two transmit ports used for beam management supported by the terminal device;

Step 131: Based on the maximum number of CSI-RS resources of one transmission port and the maximum number of CSI-RS resources of two transmission ports, determine the total number of CSI-RS resources supported by the terminal device for beam management Maximum number

Step 132: Report the maximum number of the total number of CSI-RS resources to the network device.

In addition, it is also possible to separately report the maximum number of CSI-RS resources of 1 transmit port supported by the terminal device for beam management to the network device, or separately report to the network device that the terminal device supports The maximum number of CSI-RS resources of 2 transmit ports used for beam management.

Correspondingly, the network device executes the CSI report configuration method for beam management, see also Figure 16:

Step 133: The network device receives the maximum number of the total number of CSI-RS resources used for beam management reported by the terminal device;

Step 134: The network device simultaneously schedules the terminal device to perform beam management based on the CSI-RS resource of one transmission port and the CSI-RS resource based on the two transmission ports; the CSI-RS resource of the one transmission port and the two transmission ports The total number of CSI-RS resources is less than or equal to the maximum number of the total number of CSI-RS resources.

In yet another implementation manner, the network device receives the maximum number of CSI-RS resources of one transmit port supported by the terminal device and used for beam management, and the network device schedules the terminal device based on one transmit port. CSI-RS resources CSI-RS resources perform beam management; the number of CSI-RS resources of the one transmitting port is less than or equal to the maximum number of CI-RS resources of one transmitting port reported by the terminal device, and It is less than or equal to the maximum number of the total number of CSI-RS resources.

In yet another implementation manner, the network device receives the maximum number of CSI-RS resources of the two transmit ports supported by the terminal device for beam management that are separately reported by the terminal device. The network equipment schedules the terminal equipment to perform beam management based on the CSI-RS resources of the two transmission ports; the number of the CSI-RS resources of the two transmission ports is less than or equal to the two transmission ports reported by the terminal equipment The maximum number of CI-RS resources, and the maximum number less than or equal to the total number of CSI-RS resources.

For example, the hardware resources of the terminal device can support 32 CSI-RS resources of 1 transmit port or 2 transmit port. At this time, the terminal device needs to report separately: The CSI-RS resource for beam management that supports 1 transmit port is the largest The number is 32; the maximum number of CSI-RS resources for beam management that supports 2 transmit ports is 32; the CSI-RS resource for beam management that supports 1 transmit port plus 2 transmit ports are used for The total maximum number of CSI-RS resources for beam management is 32. At this time, when the network equipment schedules the terminal equipment for beam management, it can individually configure a maximum of 32 CSI-RS resources with one transmit port; or it can also configure a maximum of 32 CSI-RS resources with two transmit ports separately; or It is also possible to configure the CSI-RS resource of 1 transmitting port and the CSI-RS resource of 2 transmitting ports at the same time to ensure that the total number of CSI-RS resources of 1 transmitting port and CSI-RS resources of 2 transmitting ports does not exceed 32 . At this time, whether it is to configure the CSI-RS resources of one transmit port separately or configure the CSI-RS resources of two transmit ports separately, or configure the CSI-RS resources of one transmit port and two transmit ports at the same time for beam management. It can give full play to the hardware capabilities of the terminal equipment, while ensuring that the hardware capabilities of the terminal equipment are not exceeded.

In the above-mentioned embodiments provided in the present application, the methods provided in the embodiments of the present application are introduced from the perspective of network equipment, terminal, and interaction between the network equipment and the terminal. In order to realize the functions in the method provided in the above embodiments of the application, the network device and the terminal may include a hardware structure and a software module, and the above functions are implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module. One of the above-mentioned functions can be executed in a hardware structure, a software module, or a hardware structure plus a software module.

FIG. 17 is a schematic diagram of the hardware structure of a network device 1700 provided by an embodiment of the present application. As shown in FIG. 17, the network device 1700 includes a processor 1702, a transceiver 1704, multiple antennas 1706, a memory 1708, an I/O (Input/Output) interface 1710, and a bus 1712. The transceiver 1704 further includes a transmitter 1742 and a receiver 1744, and the memory 1708 is further used to store instructions 1782 and data 1784. In addition, the processor 1702, the transceiver 1704, the memory 1708, and the I/O interface 1710 are communicatively connected to each other through the bus 1712, and multiple antennas 1706 are connected to the transceiver 1704.

The processor 1702 may be a general-purpose processor, such as but not limited to a central processing unit (CPU), or a dedicated processor, such as but not limited to a digital signal processor (DSP), application Application Specific Integrated Circuit (ASIC) and Field Programmable Gate Array (FPGA), etc. In addition, the processor 1702 may also be a combination of multiple processors. In particular, in the technical solution provided by the embodiment of the present invention, the processor 1702 may be used to execute, for example, the processing steps in the method shown in FIG. 11 or FIG. 12 or FIG. 16. The processor 1702 may be a processor specifically designed to perform the foregoing steps or operations, or a processor that performs the foregoing steps or operations by reading and executing instructions 1782 stored in the memory 1708. The processor 1702 is performing the foregoing steps. Or data 1784 may be needed during the operation.

The transceiver 1704 includes a transmitter 1742 and a receiver 1744, where the transmitter 1742 is configured to transmit a signal through at least one antenna among the plurality of antennas 1706. The receiver 1744 is configured to receive signals through at least one antenna among the plurality of antennas 1706. In particular, in the technical solution provided by the embodiment of the present invention, the transmitter 1742 may be specifically used to perform the operation through at least one antenna among the multiple antennas 1706, for example, in the method shown in FIG. 11 or FIG. 12 or FIG. Send and receive operations.

The memory 1708 may be various types of storage media, such as Random Access Memory (RAM), Read Only Memory (ROM), Non-Volatile RAM (NVRAM), Programmable ROM (Programmable ROM, PROM), erasable PROM (Erasable PROM, EPROM), electrically erasable PROM (Electrically Erasable PROM, EEPROM), flash memory, optical memory, registers, etc. The memory 1708 is specifically used to store instructions 1782 and data 1784. The processor 1702 can execute the above-mentioned steps or operations by reading and executing the instructions 1782 stored in the memory 1708. It may be possible during the execution of the above-mentioned operations or steps. Need to use data 1784.

The I/O interface 1710 is used to receive instructions or data from peripheral devices and output instructions or data to the peripheral devices.

It should be noted that in the specific implementation process, the network device 1700 may also include other hardware devices, which will not be listed here.

Figure 18 provides a schematic structural diagram of a terminal device. The terminal device can be applied to the scenarios shown in Figure 1 and Figure 2. For ease of description, FIG. 18 only shows the main components of the terminal device. As shown in Figure 18, the terminal equipment includes a processor, a memory, a control circuit, an antenna, and an input and output device. The processor is mainly used to process the communication protocol and communication data, and to control the entire terminal, execute the software program, and process the data of the software program. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.

When the terminal device is turned on, the processor can read the software program in the storage unit, parse and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit processes the baseband signal to obtain a radio frequency signal and sends the radio frequency signal out in the form of electromagnetic waves through the antenna. . When data is sent to the terminal equipment, the radio frequency circuit receives the radio frequency signal through the antenna, the radio frequency signal is further converted into a baseband signal, and the baseband signal is output to the processor, and the processor converts the baseband signal into data and performs processing on the data. deal with.

For ease of description, FIG. 18 only shows one memory and processor 1812. In actual terminal devices, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, etc., which is not limited in the embodiment of the present invention.

As an optional implementation, the processor may include a baseband processor and a central processing unit. The baseband processor is mainly used to process communication protocols and communication data. The central processing unit is mainly used to control the entire terminal device and execute Software program, processing the data of the software program. Those skilled in the art can understand that the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device may include multiple central processors to enhance its processing capabilities, and various components of the terminal device may be connected through various buses. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and communication data can be built in the processor, or can be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

In an example, the antenna and control circuit with the transceiver function may be regarded as the communication unit 1611 of the terminal device, and the processor with the processing function may be regarded as the processing unit 1812 of the terminal device. As shown in FIG. 18, the terminal device includes a communication unit 1811 and a processing unit 1812. The communication unit 1811 may also be referred to as a transceiver, a transceiver, a transceiver, and the like. Optionally, the device for implementing the receiving function in the communication unit 1811 can be regarded as the receiving unit, and the device for implementing the sending function in the communication unit 1811 as the sending unit, that is, the communication unit 1811 includes a receiving unit and a sending unit. Exemplarily, the receiving unit may also be called a receiver, a receiver, a receiving circuit, etc., and the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc. Optionally, the foregoing receiving unit and sending unit may be an integrated unit or multiple independent units. The above-mentioned receiving unit and sending unit may be in one geographic location, or may be scattered in multiple geographic locations.

Please refer to FIG. 19, which is a schematic structural diagram of a communication device according to an embodiment of the application. The device can be used to implement the method described in the foregoing method embodiment, and for details, please refer to the description in the foregoing method embodiment.

The communication device 1900 may include one or more processors 1901. The processor 1901 may also be referred to as a processing unit, and may implement the functions of the network device or the terminal device in the method provided in the embodiment of the present application. The processor 1801 may be a general-purpose processor or a special-purpose processor.

In an alternative design, the processor 1901 may also store an instruction 1903, and the instruction 1903 may be executed by the processor, so that the communication device 1900 executes the method described in the foregoing method embodiment.

In another optional design, the processor 1901 may include a communication unit for implementing receiving and sending functions. For example, the communication unit may be a transceiver circuit, or an interface, or an interface circuit. The processor 1801 can implement the method executed by the network device or the method executed by the terminal device in the method provided in the embodiments of the present application through the communication unit.

In other words, the communication device 1900 has the function of implementing the terminal device or network device described in the embodiment of the present application. For example, the device includes a terminal device to execute the steps corresponding to the terminal device or network device described in the embodiment of the present application. Modules or units or means. The functions or units or means can be realized by software, or by hardware, or by hardware executing corresponding software, or by a combination of software and hardware. For details, please refer to the corresponding description in the foregoing corresponding method embodiment.

In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and may implement or Perform the methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.

In an implementation manner, the communication device 1900 may include one or more memories 1902, on which instructions 1904 may be stored. The instructions may be executed on the processor, so that the apparatus 1900 executes the method described in the foregoing method embodiment. The processor and memory can be provided separately or integrated together.

In an implementation manner, the communication device 1900 may further include at least one of a transceiver 1805 and an antenna 1906. The transceiver 1905 may be referred to as a communication unit, a transceiver, a transceiver circuit, or a transceiver, etc., for implementing the transceiver function.

In a possible design, a communication device 1900 (for example, a network device, a base station, a chip set in the network device, DU or CU, etc.) may include:

The transceiver 1905 is configured to receive the CSI-RS resource list supported by all types of PMI codebooks reported by the terminal equipment; the CSI-RS resource lists supported by all types of PMI codebooks are the same;

The processor 1901 is configured to simultaneously configure multiple CSI reports for terminal devices, and the multiple CSI reports are for multiple types of PMI codebooks;

The processor 1901 is further configured to limit the total number of CSI-RS resources corresponding to the multiple CSI reports according to the supported CSI-RS resource list.

In another possible design, a communication device 1900 may include:

The transceiver 1905 is configured to receive the CSI-RS resource list supported by each PMI codebook in all types of PMI codebooks reported by the terminal device;

The processor 1901 is configured to determine, according to the supported CSI-RS resource list, according to a preset rule, to simultaneously configure multiple CSI reports corresponding CSI configuration parameters for the terminal device, and the multiple CSI reports are for all supported Types of PMI codebooks in multiple types of PMI codebooks.

In another possible design, a communication device 1900 (for example, an integrated circuit, a wireless device, a circuit module, or a terminal device, a chip in the terminal device, etc.) may include:

The processor 1901 is configured to determine the CSI-RS resource list supported by all types of PMI codebooks supported by the terminal device; the CSI-RS resource lists supported by all types of PMI codebooks are the same;

The transceiver 1905 is configured to report to the network device a list of CSI-RS resources supported by all types of PMI codebooks supported by the terminal device.

For the process executed by the device 1900, please refer to the related content described in the first embodiment, the second embodiment, and FIGS. 3-15. No more details here.

The communication device provided in this embodiment can ensure that the CSI-RS resource parameter does not exceed the CSI-RS resource capacity reported by the terminal device and does not reduce the network when multiple CSI reports based on different types of codebooks are configured at the same time. When the device only configures CSI reporting of the same codebook type, the CSI-RS resource parameters match the actual capabilities of the terminal device.

The processor 1901 is configured to determine the maximum number of CSI-RS resources of one transmit port used for beam management and the maximum number of CSI-RS resources of two transmit ports used for beam management supported by the terminal device;

The processor 1901 is further configured to determine, based on the maximum number of CSI-RS resources of the 1 transmit port and the maximum number of CSI-RS resources of 2 transmit ports, that the terminal device supports beam management The maximum number of total CSI-RS resources;

The transceiver 1905 is configured to report the maximum number of the total number of CSI-RS resources to the network device.

The transceiver 1905 is further configured to report to the network device the maximum number of CSI-RS resources supported by the terminal device for one transmit port used for beam management, or report to the network device the maximum number of CSI-RS resources supported by the terminal device The maximum number of CSI-RS resources of 2 transmit ports used for beam management.

The transceiver 1905 is configured to receive the maximum number of the total number of CSI-RS resources supported by the terminal device for beam management and reported by the terminal device;

The processor 1901 is configured to simultaneously schedule the terminal equipment to perform beam management based on the CSI-RS resource of one transmitting port and the CSI-RS resource of two transmitting ports; the CSI-RS resource of the one transmitting port and two transmitting The total number of CSI-RS resources of the port is less than or equal to the maximum number of the total number of CSI-RS resources.

The transceiver 1905 is further configured to receive the maximum number of CSI-RS resources of one transmit port for beam management reported by the terminal device, or receive the maximum number of CSI-RS resources reported by the terminal device for beam management. The maximum number of CSI-RS resources for 2 transmit ports.

The processor 1901 is further configured to schedule the terminal device to perform beam management based on the CSI-RS resource of one transmit port; the number of CSI-RS resources of the one transmit port is less than or equal to the terminal The maximum number of CI-RS resources of one transmitting port reported by the device, and the maximum number less than or equal to the total number of CSI-RS resources.

The processor 1901 is further configured to schedule a terminal device to perform beam management based on the CSI-RS resources of the two transmit ports; the number of CSI-RS resources of the two transmit ports is less than or equal to the terminal The maximum number of CI-RS resources of the two transmitting ports reported by the device, and the maximum number less than or equal to the total number of CSI-RS resources.

For the process executed by the device 1900, please refer to the third embodiment and the related content described in FIG. 16. No more details here.

In the implementation of this embodiment, since the terminal equipment reports the sum of the CSI-RS resource capability of supporting one transmitting port and the CSI-RS resource capability of two transmitting ports at the same time, that is, the total maximum number of CSI-RS resources, whether it is Configure the CSI-RS resources of 1 transmit port separately or configure the CSI-RS resources of 2 transmit ports separately, or configure the CSI-RS resources of 1 transmit port and 2 transmit ports at the same time for beam management, which can give full play to the terminal The hardware capabilities of the equipment can be guaranteed not to exceed the hardware capabilities of the terminal equipment.

The present application is described in conjunction with various embodiments. However, those skilled in the art can understand and implement other changes of the disclosed embodiments by looking at the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps. A single processor or other unit may implement several functions listed in the claims. Certain measures are described in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

Although the application has been described in combination with specific features and embodiments, it is obvious that various modifications and combinations can be made without departing from the spirit and scope of the application. Accordingly, this specification and drawings are merely exemplary descriptions of the application defined by the appended claims, and are deemed to have covered any and all modifications, changes, combinations or equivalents within the scope of the application. Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application also intends to include these modifications and variations.

Claims

A method for reporting channel state information CSI resource capability, which is characterized in that it includes:

Determine all types of precoding matrix PMI codebooks supported by the terminal equipment, and a list of channel state information reference signal CSI-RS resources supported by all types of PMI codebooks; CSI-RS resources supported by all types of PMI codebooks The list is the same;

Reporting the CSI-RS resource list supported by the all types of PMI codebooks to the network device.
The method according to claim 1, wherein the reporting to the network device that all types of PMI codebooks supported by the PMI codebook support the CSI-RS resource list comprises:

The CSI-RS resource list supported by each type of PMI codebook supported by it is reported to the network device respectively.
The method according to claim 1, wherein the reporting the CSI-RS resource list supported by all types of PMI codebooks supported by the network device comprises:

Report to the network device a list of the CSI-RS resources that are supported by all types of PMI codebooks.
The method according to claim 2 or 3, wherein the list of supported CSI-RS resources includes one or more sets of CSI-RS resource parameters, and each set of CSI-RS resource parameters includes: a single CSI-RS resource parameter. The maximum number of transmission ports in the RS resource (P max ), the total maximum number of CSI-RS resources supported at the same time (R), and the maximum total transmission port number in all CSI-RS resources supported at the same time (P Total ).
The method according to any one of claims 1 to 4, wherein the supported CSI-RS resource list is within a frequency band, or within all frequency bands, or all supported frequency bands between 410MHz and 7.125GHz, Or a list of CSI-RS resources supported in all supported frequency bands between 24.25GHz and 52.6GHz.
A method for configuring channel state information CSI reporting, which is characterized in that it includes:

Receiving the CSI-RS resource list of the channel state information reference signal supported by all types of precoding matrix PMI codebooks reported by the terminal equipment; the CSI-RS resource lists supported by all the PMI codebook types are the same;

Configure multiple CSI reports for the terminal device at the same time, and the multiple CSI reports are for multiple types of PMI codebooks;

Limit the total number of CSI-RS resources corresponding to the multiple CSI reports according to the supported CSI-RS resource list.
The method according to claim 6, wherein the receiving the CSI-RS resource list supported by all types of PMI codebooks reported by the terminal device includes:

The receiving terminal device reports a list of the CSI-RS resources supported by all types of PMI codebooks it supports; or

Receive the CSI-RS resource list supported by each type of PMI codebook separately reported by the terminal equipment.
The method according to claim 6 or 7, wherein the method further comprises:

Analyze the supported CSI-RS resource list to obtain one or more sets of CSI-RS parameter combinations, and each set of CSI-RS parameter combinations includes: the maximum number of transmission ports (P max ) in a single CSI-RS resource, The maximum total number of all CSI-RS resources supported at the same time (R), and the maximum total number of transmission ports (P Total ) in all the CSI-RS resources supported at the same time.
The method according to claim 8, wherein, according to the supported CSI-RS resource list, restricting the total number of CSI-RS resources corresponding to the multiple CSI reports comprises:

Limit the maximum number of transmission ports in a single CSI-RS resource corresponding to a single CSI report to be less than or equal to the maximum number of transmission ports in a single CSI-RS resource in a set of CSI-RS parameter combinations (P max ) ; And

Limiting the maximum total number of all CSI-RS resources corresponding to the multiple CSI reports to be less than or equal to the maximum total number of all CSI-RS resources simultaneously supported in the same CSI-RS parameter combination (R); And

Limit the maximum total number of transmission ports in all CSI-RS resources corresponding to multiple CSI reports to be less than or equal to the maximum total number of transmission ports in all CSI-RS resources simultaneously supported in the same set of CSI-RS parameter combinations (P Total ).
The method according to any one of claims 6 to 9, wherein the supported CSI-RS resource list is within a frequency band, or all supported frequency bands, or all supported CSI-RS resources between 410MHz and 7.125GHz Frequency band, or list of CSI-RS resources supported in all supported frequency bands between 24.25GHz and 52.6GHz.
A method for configuring channel state information CSI reporting, which is characterized in that it includes:

The receiving terminal device reports a list of CSI-RS resources supported by each PMI codebook in all types of precoding matrix PMI codebooks it supports;

According to the supported CSI-RS resource list, and according to preset rules, it is determined to configure multiple CSI reports corresponding CSI configuration parameters for the terminal device at the same time, and the multiple CSI reports are specific to the supported PMI codebooks Many types of PMI codebooks.
The method according to claim 11, wherein the preset rule is any one of the following:

Taking the CSI-RS resource list supported by the PMI codebook with the highest priority among all types of PMI codebooks supported by the terminal device as the CSI-RS resource list corresponding to the multiple CSI reporting;

When all types of PMI codebooks supported by the terminal device include a predetermined type of PMI codebook, the CSI-RS resource list supported by the predetermined type of PMI codebook is reported as the multiple CSI corresponding CSI-RS List of resources.
The method according to claim 12, wherein the priority of the PMI codebook is determined according to the complexity of the PMI codebook, or is determined according to the frequency of use of the PMI codebook.
The method according to claim 12 or 13, wherein the priority of the PMI codebook from high to low is: Type II codebook, Type I MP codebook, Type I SP codebook, Type II PS Codebook.
The method according to any one of claims 11 to 14, wherein the list of supported CSI-RS resources is within a frequency band, or within all supported frequency bands, or all supported frequencies between 410MHz and 7.125GHz Frequency band, or list of CSI-RS resources supported in all supported frequency bands between 24.25GHz and 52.6GHz.
A terminal device, characterized by comprising at least one processor and a transceiver;

The processor is configured to determine all types of precoding matrix PMI codebooks supported by the terminal equipment, and a channel state information reference signal CSI-RS resource list supported by all PMI codebook types; all PMI codes The list of CSI-RS resources supported by this type is the same;

The transceiver is configured to report the CSI-RS resource list supported by all types of PMI codebooks supported by the terminal device to the network device.
The terminal device according to claim 16, wherein the transceiver is configured to respectively report the CSI-RS resource list supported by each type of PMI codebook supported by the terminal device to the network device.
The terminal device according to claim 16, wherein the transceiver is configured to report to the network device a list of the CSI-RS resources jointly supported by all types of PMI codebooks supported by it.
The terminal device according to claim 17 or 18, wherein the supported CSI-RS resource list includes one or more groups of CSI-RS resource parameters, and each group of the CSI-RS resource parameters includes: a single CSI-RS resource parameter -The maximum number of transmission ports in the RS resource (P max ), the total maximum number of CSI-RS resources supported at the same time (R), and the maximum total number of transmission ports in all CSI-RS resources supported at the same time (P Total ).
The terminal device according to any one of claims 16 to 19, wherein the supported CSI-RS resource list is within a frequency band, or within all supported frequency bands, or all supported frequencies between 410MHz and 7.125GHz CSI-RS resource list supported in all supported frequency bands between 24.25GHz and 52.6GHz.
A network device, characterized in that it comprises at least one processor and a transceiver;

The transceiver is configured to receive the channel state information reference signal CSI-RS resource list supported by all types of precoding matrix PMI codebooks reported by the terminal equipment; the CSI-RS resources supported by all types of PMI codebooks The list is the same;

The processor is configured to simultaneously configure multiple CSI reports for the terminal device, and the multiple CSI reports are for multiple types of PMI codebooks;

The processor is further configured to limit the total number of CSI-RS resources corresponding to the multiple CSI reports according to the supported CSI-RS resource list.
The network device according to claim 21, wherein the transceiver is configured to receive a list of the CSI-RS resources reported by the terminal device and supported by all types of PMI codebooks that it supports; or

It is used to receive a list of the CSI-RS resources supported by each type of PMI codebook supported by the terminal equipment respectively.
The network device according to claim 17 or 18, wherein the processor is further configured to parse the supported CSI-RS resource list to obtain one or more sets of CSI-RS parameter combinations, each of which The CSI-RS parameter combination includes: the maximum number of transmission ports in a single CSI-RS resource (P max ), the maximum total number of all CSI-RS resources supported at the same time (R), and the maximum number of all CSI-RS resources supported at the same time The maximum total number of transmit ports (P Total ).
The network device according to claim 23, wherein the processor is specifically configured to limit the maximum number of transmission ports in a single CSI-RS resource corresponding to a single CSI report to be less than or equal to a set of The maximum number of transmit ports (P max ) in a single CSI-RS resource in the CSI-RS parameter combination; and

Limiting the maximum total number of all CSI-RS resources corresponding to the multiple CSI reports to be less than or equal to the maximum total number of all CSI-RS resources simultaneously supported in the same CSI-RS parameter combination (R); And

Limit the maximum total number of transmission ports in all CSI-RS resources corresponding to multiple CSI reports to be less than or equal to the maximum total number of transmission ports in all CSI-RS resources simultaneously supported in the same set of CSI-RS parameter combinations (P Total ).
The network device according to any one of claims 21 to 24, wherein the supported CSI-RS resource list is within a frequency band, or within all supported frequency bands, or all supported frequencies between 410MHz and 7.125GHz CSI-RS resource list supported in all supported frequency bands between 24.25GHz and 52.6GHz.
A network device, characterized in that it comprises a transceiver and at least one processor;

The transceiver is configured to receive the CSI-RS resource list supported by each PMI codebook in all types of precoding matrix PMI codebooks that the terminal device supports;

The processor is configured to determine, according to the supported CSI-RS resource list, according to a preset rule, to simultaneously configure multiple CSI report corresponding CSI configuration parameters for the terminal device, and the multiple CSI reports are for the supported Multiple types of PMI codebooks among all types of PMI codebooks.
The network device of claim 26, wherein the preset rule is any one of the following:

Taking the CSI-RS resource list supported by the PMI codebook with the highest priority among all types of PMI codebooks supported by the terminal device as the CSI-RS resource list corresponding to the multiple CSI reporting;

When all types of PMI codebooks supported by the terminal device include a predetermined type of PMI codebook, the CSI-RS resource list supported by the predetermined type of PMI codebook is reported as the multiple CSI corresponding CSI-RS List of resources.
The network device of claim 27, wherein the priority of the type of PMI codebook is determined according to the complexity of the type of PMI codebook, or is determined according to the frequency of use of the type of PMI codebook .
The network device according to claim 27 or 28, wherein the priority of the PMI codebook from high to low is: Type II codebook, Type I MP codebook, Type I SP codebook, Type II PS codebook.
The network device according to any one of claims 26 to 29, wherein the list of supported CSI-RS resources is within a frequency band, or within all supported frequency bands, or all supported between 410MHz and 7.125GHz CSI-RS resource list supported in all supported frequency bands between 24.25GHz and 52.6GHz.
A method for reporting CSI-RS resource capability for beam management, which is characterized in that it includes:

Determine the maximum number of CSI-RS resources for one transmit port for beam management and the maximum number of CSI-RS resources for two transmit ports for beam management supported by the terminal device;

Based on the maximum number of CSI-RS resources of one transmission port and the maximum number of CSI-RS resources of two transmission ports, the maximum number of total CSI-RS resources supported by the terminal device for beam management is determined ；

Reporting the maximum number of the total number of CSI-RS resources to the network device.
The method according to claim 31, wherein the method further comprises:

Report to the network device the maximum number of CSI-RS resources of one transmit port for beam management supported by the terminal device, or report to the network device two transmissions supported by the terminal device for beam management The maximum number of CSI-RS resources of the port.
A beam management scheduling method is characterized in that it includes:

The network device receives the maximum number of the total number of CSI-RS resources used for beam management reported by the terminal device;

The network equipment simultaneously schedules the terminal equipment to perform beam management based on the CSI-RS resource of one transmitting port and the CSI-RS resource of two transmitting ports; the CSI-RS resource of the one transmitting port and the CSI-RS resource of the two transmitting ports. The total number of RS resources is less than or equal to the maximum number of the total number of CSI-RS resources.
The method of claim 33, wherein the method further comprises:

The network device receives the maximum number of CSI-RS resources of one transmit port for beam management reported by the terminal device, or the terminal device reports the maximum number of CSI-RS resources supported by the terminal device for two transmit ports for beam management The maximum number of CSI-RS resources.
The method according to claim 34, wherein the method further comprises: the network equipment schedules the terminal equipment to perform beam management based on the CSI-RS resource CSI-RS resource of one transmit port; the CSI of the one transmit port -The number of RS resources is less than or equal to the maximum number of CI-RS resources of one transmission port reported by the terminal device, and less than or equal to the maximum number of the total number of CSI-RS resources.
The method according to claim 34, wherein the method further comprises: the network equipment scheduling the terminal equipment to perform beam management based on the CSI-RS resources of the two transmission ports; the CSI-RS resources of the two transmission ports -The number of RS resources is less than or equal to the maximum number of CI-RS resources of the two transmission ports reported by the terminal device, and less than or equal to the maximum number of the total number of CSI-RS resources.
A terminal device, characterized in that it comprises:

A processor, configured to determine the maximum number of CSI-RS resources of one transmit port used for beam management and the maximum number of CSI-RS resources of two transmit ports used for beam management supported by the terminal device;

The processor is further configured to determine, based on the maximum number of CSI-RS resources of the 1 transmitting port and the maximum number of CSI-RS resources of 2 transmitting ports, the CSI for beam management supported by the terminal device -The maximum number of total RS resources;

The transceiver is configured to report the maximum number of the total number of CSI-RS resources to the network device.
The terminal device of claim 37, wherein the transceiver is further configured to report to the network device the maximum number of CSI-RS resources of one transmit port supported by the terminal device for beam management, Or report the maximum number of CSI-RS resources of the two transmit ports used for beam management supported by the terminal device to the network device.
A network device, characterized by comprising:

The transceiver is used to receive the maximum number of the total number of CSI-RS resources used for beam management reported by the terminal equipment;

The processor is used to simultaneously schedule the terminal equipment to perform beam management based on the CSI-RS resource of 1 transmitting port and the CSI-RS resource of 2 transmitting ports; the CSI-RS resource of the 1 transmitting port and the 2 transmitting ports The total number of CSI-RS resources is less than or equal to the maximum number of the total number of CSI-RS resources.
The network device according to claim 39, wherein the transceiver is further configured to receive the maximum number of CSI-RS resources of one transmit port for beam management reported by the terminal device, Or the receiving terminal device reports the maximum number of CSI-RS resources supported by the two transmitting ports for beam management.
The network device according to claim 40, wherein the processor is further configured to schedule the terminal device to perform beam management based on the CSI-RS resource of one transmission port; The number of CSI-RS resources is less than or equal to the maximum number of CI-RS resources of one transmission port reported by the terminal device, and less than or equal to the maximum number of the total number of CSI-RS resources.
The network device according to claim 40, wherein the processor is further configured to schedule the terminal device to perform beam management based on the CSI-RS resources of the two transmit ports; The number of CSI-RS resources is less than or equal to the maximum number of CI-RS resources of the two transmission ports reported by the terminal device, and less than or equal to the maximum number of the total number of CSI-RS resources.
A chip comprising at least one processor and a communication interface, the processor is connected to the communication interface, and is characterized in that the processor implements any one of claims 1 to 15 or 31 to 36. Methods.
A chip includes at least one processor, a memory, and a communication interface, the processor is connected to the memory and the communication interface, and is characterized in that the processor is used to read and execute a computer program stored in the memory, To achieve the method described in any one of claims 1 to 15, or 31 to 36.
A computer-readable storage medium, wherein program instructions are stored in the computer-readable storage medium, which, when run on a processor, implement any one of the foregoing claims 1 to 15, or 31 to 36 The method described.
A computer program product, characterized in that a computer program is stored in the computer program product, and when it runs on a computer, it implements the method of any one of claims 1 to 15 or 31 to 36.