Information processing method and apparatus, and communication system

Abstract

Embodiments of the present application provide an information processing method and apparatus, and a communication system. The method comprises: a terminal device receives channel state information (CSI) reporting configuration information from a network device, the CSI reporting configuration information comprising at least one piece of sub-configuration information; and, on the basis of a related symbol transmitted on a first antenna port related to the sub-configuration information, the terminal device determines CSI reporting information.

Description

Information processing method, apparatus, and communication system TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of communication technology. BACKGROUND

[0002] With the popularity of the fifth generation (5G) communication network in various industries and its application in more geographical areas, in order to provide more advanced services, very high data rates and more intensive networks are required. More number of antennas, larger dimension antenna arrays are currently considered for use on the 5G base station side. In the extended new frequency bands that can be used, larger dimension antenna arrays can enhance beam coverage and also serve more user data needs.

[0003] However, due to the use of more number of antennas, larger bandwidth and more frequency bands, the energy consumption of 5G devices becomes larger and larger. According to the data statistics of operators, the average energy consumption of a 5G base station is more than three times that of an LTE (Long Term Evolution) base station. Operators have nearly 50% of the cost of deploying a 5G network in electricity expenses. More importantly, even in the time period without business, the energy consumption of 5G base station is still very large. Therefore, network energy saving is of great significance to improve the sustainability of the environment, reduce the impact on the environment (such as reducing greenhouse gas emissions), and save operating costs. 5G network energy saving is a problem to be solved.

[0004] In order to achieve network energy saving, 5G has launched network energy saving related issues to study various energy saving technologies. In the discussion, network energy saving technologies can be divided into time domain / frequency domain / space domain / energy domain energy saving, etc. Space domain energy saving, for example, is dynamic adjustment of the number of antennas. Specifically, it can be divided into two space domain energy saving scenarios, including closing / opening digital antenna ports under energy saving optimization, and closing / opening physical antennas under energy saving optimization, etc.

[0005] It should be noted that the above introduction to the technical background is only to facilitate a clear and complete description of the technical solutions of the present application, and to facilitate the understanding of those skilled in the art. The above technical solutions cannot be considered as known to those skilled in the art merely because they are described in the background section of the present application.

[0006] SUMMARY

[0007] The inventors find that in Release 19 (R19) and more antenna port scenarios in the future, although various energy saving techniques can save a large amount of energy for network devices, at the same time, other processes or techniques in the communication system are negatively affected, and compatibility problems are caused to configuration methods in existing standards. For example, with the increase of antenna ports, how network devices configure multiple antenna configurations, and how terminal devices perform channel measurement and report on multiple antenna configurations are still problems to be solved.

[0008] To at least one of the above problems or other similar problems, embodiments of the present application provide an information processing method, device and communication system.

[0009] According to an aspect of embodiments of the present application, an information processing method is provided, applied to a terminal device, and the method comprises: receiving, by the terminal device, channel state information (CSI) reporting setting information from a network device, wherein the CSI reporting setting information comprises at least one sub-configuration information; and determining, by the terminal device, CSI reporting information based on a relevant symbol transmitted on a first antenna port related to the sub-configuration information.

[0010] According to another aspect of embodiments of the present application, an information processing method is provided, applied to a network device, and the method comprises: sending, by the network device, channel state information (CSI) reporting setting information to a terminal device, wherein the CSI reporting setting information comprises at least one sub-configuration information; and receiving, by the network device, CSI reporting information sent by the terminal device, the CSI reporting information being determined based on a relevant symbol transmitted on a first antenna port related to the sub-configuration information.

[0011] According to another aspect of embodiments of the present application, an information processing device is provided, configured in a terminal device, and the device comprises: a receiving unit that receives channel state information (CSI) reporting setting information from a network device, wherein the CSI reporting setting information comprises at least one sub-configuration information; and a processing unit that determines CSI reporting information based on a relevant symbol transmitted on a first antenna port related to the sub-configuration information.

[0012] According to another aspect of embodiments of the present application, an information processing device is provided, configured in a network device, and the device comprises: a sending unit that sends channel state information (CSI) reporting setting information to a terminal device, wherein the CSI reporting setting information comprises at least one sub-configuration information; and a receiving unit that receives CSI reporting information sent by the terminal device, the CSI reporting information being determined based on a relevant symbol transmitted on a first antenna port related to the sub-configuration information.

[0013] According to another aspect of the embodiments of the present application, a communication system is provided, comprising a network device and a terminal device, the network device sends channel state information (CSI) reporting setting information to the terminal device, wherein the CSI reporting setting information comprises at least one sub-configuration information, the network device receives CSI reporting information sent by the terminal device, the CSI reporting information is determined based on relevant symbols transmitted on a first antenna port related to the sub-configuration information; the terminal device receives the channel state information (CSI) reporting setting information sent by the network device, and determines the CSI reporting information based on relevant symbols transmitted on a first antenna port related to the sub-configuration information.

[0014] One of the beneficial effects of the embodiments of the present application is that the terminal device receives the CSI reporting setting information comprising at least one sub-configuration information, and determines the CSI reporting information based on relevant symbols transmitted on a first antenna port related to the sub-configuration information, so that the terminal device can determine the relevant symbols for measuring the CSI of the sub-configuration information according to the sub-configuration information, which helps the terminal device to efficiently and accurately perform CSI measurement and reporting, guarantees data transmission performance and realizes network energy saving.

[0015] Specific embodiments of the application are disclosed in detail in the following description and claims. Specific embodiments of the application can be understood only by those skilled in the art upon examination of the following description and accompanying drawings. It should be understood that the scope of the application is not limited to the embodiments described herein, but encompasses all changes, modifications and equivalents falling within the spirit and scope of the claims.

[0016] Features described and / or illustrated with respect to one implementation can be used in one or more other implementations in the same or similar manner, in combination with or in place of features in other implementations, and / or in combination with or in place of one or more features described and / or illustrated with respect to another implementation.

[0017] It should be emphasized that the term "comprises / comprising" when used in this text is taken to mean that the features, integers, steps or components that follow the term are present, but do not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof. BRIEF DESCRIPTION OF DRAWINGS

[0018] Elements and features described with respect to one drawing or implementation of the application can be combined with elements and features illustrated in one or more other drawings or implementations of the application. Also, in the drawings, like reference numerals designate corresponding parts throughout the several views, and can be used to designate like components in more than one implementation.

[0019] FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

[0020] FIG. 2 is a schematic diagram of an energy saving scenario according to an embodiment of the present application;

[0021] Figure 3 is a schematic diagram of an information processing method according to an embodiment of this application;

[0022] Figure 4 is a schematic diagram of the CSI-RS resource set and enabled port according to an embodiment of this application;

[0023] Figure 5 is a schematic diagram of the enabled port according to an embodiment of this application;

[0024] Figure 6 is another schematic diagram of the CSI-RS resource set and enabled port according to an embodiment of this application;

[0025] Figure 7 is another schematic diagram of the enabled port according to an embodiment of this application;

[0026] Figure 8 is another schematic diagram of the CSI-RS resource set and enabled port according to an embodiment of this application;

[0027] Figure 9 is another schematic diagram of the enabled port according to an embodiment of this application;

[0028] Figure 10 is a schematic diagram of an information processing method according to an embodiment of this application;

[0029] Figure 11 is a schematic diagram of an information processing apparatus according to an embodiment of this application;

[0030] Figure 12 is a schematic diagram of an information processing device according to an embodiment of this application;

[0031] Figure 13 is a schematic diagram of a network device according to an embodiment of this application;

[0032] Figure 14 is a schematic diagram of a terminal device according to an embodiment of this application. Detailed Implementation

[0033] Referring to the accompanying drawings, the foregoing and other features of this application will become apparent from the following description. Specific embodiments of this application are specifically disclosed in the description and drawings, illustrating partial implementations in which the principles of this application may be employed. It should be understood that this application is not limited to the described embodiments; rather, it includes all modifications, variations, and equivalents falling within the scope of the appended claims.

[0034] In the embodiments of this application, the terms "first," "second," etc., are used to distinguish different elements by name, but do not indicate the spatial arrangement or chronological order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one or more of the terms listed in association and all combinations thereof. The terms "comprising," "including," "having," etc., refer to the presence of the stated features, elements, components, or assemblies, but do not exclude the presence or addition of one or more other features, elements, components, or assemblies.

[0035] In the embodiments of the present application, the singular form "a", "an" and "the" include the plural form, should be broadly understood as "one" or "a kind of", and not limited to the meaning of "one"; in addition, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. In addition, the term "according to" should be understood as "at least partially according to", and the term "based on" should be understood as "at least partially based on", unless the context clearly indicates otherwise.

[0036] In the embodiments of the present application, the term "communication network" or "wireless communication network" can refer to a network that conforms to any communication standard, such as Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), etc.

[0037] In addition, the communication between devices in the communication system can be carried out according to any stage communication protocol, which can include but is not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), future 6G, etc., and / or other currently known or to be developed in the future. Communication protocol.

[0038] In the embodiments of the present application, the term "network device" refers to, for example, a device that accesses a terminal device to a communication network and provides services for the terminal device in a communication system. The network device can include but is not limited to the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.

[0039] The base station can include, but is not limited to, a NodeB (or NB), an evolved NodeB (or eNodeB or eNB), and a 5G base station (or gNB), an IAB donor, and the like, and can further include a remote radio head (RRH), a remote radio unit (RRU), a relay, or a low-power node (for example, a femto, a pico, and the like). The term "base station" can include some or all functions of them, and each base station can provide communication coverage for a specific geographic area. The term "cell" can refer to a base station and / or its coverage area, depending on the context in which the term is used.

[0040] In the embodiments of the present application, the term "user equipment" (UE) or "terminal equipment" (TE or Terminal Device) refers to a device that accesses a communication network through a network device and receives network services, for example. The terminal equipment can be fixed or mobile, and can also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, and the like.

[0041] The terminal equipment can include, but is not limited to, the following devices: a cellular phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a machine type communication device, a laptop computer, a cordless phone, a smartphone, a smartwatch, a digital camera, and the like.

[0042] For another example, in an Internet of Things (IoT) scenario or the like, the terminal equipment can also be a machine or device that performs monitoring or measurement, and can include, but is not limited to, the following devices: a machine type communication (MTC) terminal, a vehicle-mounted communication terminal, a device-to-device (D2D) terminal, a machine-to-machine (M2M) terminal, and the like.

[0043] In addition, the term "network side" or "network device side" refers to the side of the network, which can be a certain base station, or can include one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the side of the user or terminal, which can be a certain UE, or can include one or more terminal devices as described above. In this document, "device" can refer to a network device or a terminal device unless otherwise specified.

[0044] The scenarios of the embodiments of the present application are described below by way of examples, but the present application is not limited thereto.

[0045] FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application, which schematically illustrates the case of taking a terminal device and a network device as examples. As shown in FIG. 1, the communication system 100 can include a network device 101 and terminal devices 102 and 103. For simplicity, FIG. 1 illustrates only two terminal devices and one network device as examples, but the embodiments of the present application are not limited thereto.

[0046] In the embodiments of the present application, the network device 101 and the terminal devices 102 and 103 can perform existing services or future implementable services transmission. For example, these services can include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.

[0047] It is worth noting that FIG. 1 shows that both terminal devices 102 and 103 are within the coverage of the network device 101, but the present application is not limited thereto. Both terminal devices 102 and 103 can not be within the coverage of the network device 101, or one terminal device 102 is within the coverage of the network device 101 while the other terminal device 103 is outside the coverage of the network device 101.

[0048] In the embodiments of the present application, the higher layer signaling can be, for example, radio resource control (RRC) signaling; for example, referred to as RRC message, for example, including MIB, system information, dedicated RRC message; or referred to as RRC IE. The higher layer signaling can also be, for example, MAC (Medium Access Control) signaling; or referred to as MAC CE. But the present application is not limited thereto.

[0049] In the embodiments of the present application, in a mobile communication system, a terminal device generally performs channel state information (CSI) measurement according to the indication and configuration of a network device, and reports the measured CSI to the network device. When scheduling the terminal device, the network device can refer to the CSI to schedule the terminal device to transmit in a suitable physical resource and in a suitable transmission mode. Different terminal devices can experience different physical channel conditions, and the CSI feedback mechanism can reasonably and effectively utilize the physical resources, thereby improving the efficiency of the entire network transmission.

[0050] In the CSI feedback mechanism of NR, the terminal device mainly performs measurement and reporting on reference signals based on CSI configuration, and the reference signals include CSI-RS (Channel State Information-Reference Signal) and SSB (Synchronization Signal Block) and the like. The CSI configuration of NR mainly includes two parts: the first part is that the network device configures reference resources (CSI-RS resource configuration) for the terminal device to perform CSI measurement, and the second part is that the network device configures the terminal device to perform CSI reporting (CSI reporting configuration).

[0051] For example, in the CSI-RS resource configuration (Resource setting), it can be used for beam management (interference measurement) and CSI channel measurement. Each CSI-RS resource configuration contains S resource sets. Each resource set contains Ks CSI-RS resources. The aperiodic resource configuration can contain one or more resource sets. For periodic and semi-persistent resource configurations, only one resource set can be contained for CSI acquisition.

[0052] Among them, the value of Ks is:

[0053] When used for CSI channel measurement, if the codebook type in the reporting setting is ‘Type I’ (which can specifically include CodebookType=‘TypeISinglePanle’ or ‘TypeIMultiPanle’), Ks<=32.

[0054] When used for CSI channel measurement, if the codebook type in the reporting setting is 'Type II' (which can specifically include CodebookType = 'typeII', 'typeII-PortSelection', 'typeII-r16', 'typeII-PortSelection-r16', 'typeII-PortSelection-r17'), Ks = 1. This is mainly because the calculation complexity of Type II is relatively large, and it is more challenging for terminal devices to calculate, so the NR system limits the value of Ks to relatively reduce the calculation complexity of terminal devices.

[0055] One CSI report consists of two parts (Part 1 and Part 2), wherein the CSI first part (CSI Part 1, which can also be referred to as Part 1) has a fixed payload size and indicates the number of information bits of the CSI second part (CSI Part 2, which can also be referred to as Part 2); in CSI reporting, if the current CSI measurement is used for CSI channel measurement, there are also the following reporting content regulations according to different codebook types:

[0056] Type I CSI: part 1 includes RI (Rank Indicator) / CRI (CSI-RS resource index) and the CQI (Channel Quality Indicator) of the first CW (code word); part 2 includes LI (layer indicator) and PMI (Precoding Matrix Indicator), and when the rank is greater than 4, it also includes the CQI of the second CW;

[0057] Type II CSI: part 1 includes RI, CQI, and the number of non-zero wideband amplitude coefficients per layer; part 2 includes LI and PMI.

[0058] In the NR system, a UE can perform channel state measurement according to receiving a non-zero-power (NZP) CSI-RS resource and perform reporting feedback based on a reporting quantity configuration in a reporting setting. When the reporting quantity contains a CQI (Channel Quality Indication) configuration, the UE can jointly calculate the reported CQI information through the current channel estimation result and the CQI calculation assumption in the standard. The specific UE-side calculation process is as follows (it should be noted that the following content is only a specific example of the calculation process, and the UE-side calculation process can also be other content):

[0059] 1) The UE estimates the current channel estimation H through the CSI-RS;

[0060] 2) The UE calculates the optimal precoding information W through the channel estimation H;

[0061] 3) The UE calculates the current SINR (Signal to Interference and Noise Ratio) through the precoding information W weighted channel estimation result H;

[0062] 4) The UE calculates the optimal CQI through the modulation order and SINR curve fitting result of the current SINR and reports it through the CQI quantization definition in the standard.

[0063] According to the above UE calculation process, the CQI calculation is to reflect the channel quality information in the physical downlink shared channel (PDSCH) real channel transmission. Therefore, when calculating CQI, the UE needs to map the PDSCH signal received in the antenna port [1000,...,1000+ν-1] and the related signal (related symbol) transmitted in the antenna port [3000,...,3000+P-1] (since the CSI-RS signal is transmitted in the 3000 port, the related signal here specifically refers to the CSI-RS signal), where P is the number of antenna ports. For example, in the CQI calculation, the mapping relationship based on single-point transmission in the NR system is shown in Table 1.

[0064] Table 1: Mapping relationship based on single-point transmission in the NR system

[0065] where x(i) = [x (0) (i)...x (ν-1) (i)] T represents the signal information of the v layers of PDSCH. Since the PDSCH port is one-to-one mapped with the layer, x(i) also represents the signal information of the v PDSCH ports [1000,...,1000+v-1]. y(i) = [y (3000) (i)...y(3000+P-1)(i)] TThe signal information representing the ports corresponding to the P CSI-RSs.

[0066] As can be seen from the above formula, the channel state information calculated by the CSI-RS has a precoding mapping relationship with the real PDSCH transmission port, and therefore, when the UE calculates the CQI, the precoding information needs to be calculated in advance and the channel quality information (CQI) when the hypothetical PDSCH transmission channel is calculated and fed back according to the current mapping relationship.

[0067] For the port definition, the port index values of the CSI-RSs with different port numbers are defined. That is, the port index values of the 2-antenna port are [3000, 3001], the port index values of the 4-antenna port are [3000, 3001, 3002, 3003], the port index values of the 8-antenna port are [3000, 3001, …, 3007], the port index values of the 12-antenna port are [3000, 3001, …, 3011], the port index values of the 16-antenna port are [3000, 3001, …, 3015], and the port index values of the 22-antenna port are [3000, 3001, …, 3031].

[0068] In the NR energy saving scenario, one or more sub-configurations in the enhanced CSI resource configuration and the CSI reporting configuration are associated, that is, the terminal side can measure and report the CSI information of one or more energy saving sub-configurations according to the enhanced CSI resource configuration. The sufficient channel state information reporting is provided for the base station to provide data transmission for the purpose of energy saving.

[0069] For a CSI resource enhancement method 1 for the purpose of energy saving, one or more CSI-RS resources in the CSI-RS resource set for channel measurement can be associated with the same sub-configuration provided in the CSI reporting configuration, that is, one sub-configuration in the CSI reporting configuration can be associated with one or more CSI-RS resources in the CSI-RS resource set for channel measurement; wherein the resources in the resource set for channel measurement have the same number of antenna ports.

[0070] For a CSI resource enhancement method 2 for the purpose of energy saving, one or more CSI-RS resources in the CSI-RS resource set for channel measurement can be associated with multiple sub-configurations provided in the CSI reporting configuration, each CSI-RS resource is associated with all sub-configurations, and the resources in the resource set for channel measurement have the same number of antenna ports.

[0071] To achieve the purpose of network energy saving, a feasible solution is that network devices can adjust the antenna configuration for serving terminal devices, such as the number of antenna elements, antenna ports, and the like, according to the real-time demand of the network.

[0072] FIG. 2 is a schematic diagram of an energy saving scenario of an embodiment of the present application. As shown in FIG. 2, the network energy saving related space / energy domain element adjustment technology can be divided into two types:

[0073] The left side of FIG. 2 can be referred to as type 1 adjustment, for example, corresponding to energy saving scenario 1, enabling or disabling all antennas (factors) associated with a logical antenna port (also referred to as a digital antenna port, an antenna port, a port, and the like). In this way, the network device can close all antennas (factors) corresponding to one or more antenna ports. After being closed, the transmission power of each port remains unchanged, and the total number of antenna ports is reduced. Therefore, this adjustment directly affects the number of antenna ports, and further affects the transmission power of the reference signal.

[0074] The right side of FIG. 2 can be referred to as type 2 adjustment, for example, corresponding to energy saving scenario 2, enabling or disabling part of the antenna factors associated with a logical antenna port. In this way, the network device can close part of the antennas (factors) corresponding to all antenna ports. After being closed, the number of antenna ports remains unchanged, and the transmission power of each port becomes smaller. Therefore, this adjustment affects the beamforming gain of the network device, and further affects the transmission power of the reference signal.

[0075] As shown in FIG. 2, energy saving scenario 1 achieves the effect of network energy saving by closing part of the digital antenna ports. At the terminal device side, after closing different numbers of antenna ports, the terminal device needs to measure according to different port numbers to generate CSI information under different digital ports. Therefore, the ‘nrofports’ in the CSI resource configuration and / or N1N2 in the reporting setting may have different values under different energy saving configurations. Therefore, the number of antenna port dimensions in the PMI matrix in the reported CSI under different energy saving sub-configurations is different. The most common one for energy saving scenario 1 can distinguish different antenna port sub-configurations through antenna port indication within a CSI-RS resource. For example, different antenna port subsets in the CSI-RS resource can correspond to different antenna port closing configurations.

[0076] As shown in FIG. 2, in the energy saving scenario 2, the TXRU (transceiver unit) / radio frequency antenna number is dynamically adjusted without adjusting the number of digital antenna ports to achieve the effect of network energy saving. Therefore, in this case, the 'nrofports' in the CSI resource configuration and / or the N1N2 in the reporting setting in different energy saving sub-configuration may not change, and the number of antenna port dimensions in the PMI matrix in the reported CSI does not change, so it may be protocol transparent at the terminal device side. For the most common energy saving scenario 2, different CSI-RSs can be used to distinguish different energy saving sub-configuration, such as different CSI resources corresponding to different energy saving sub-configuration.

[0077] As mentioned earlier, the version 19 (R19) and more number of antenna port scenarios in the future will have a negative impact on other processes or technologies in the communication system, and cause certain compatibility problems to the configuration method in the existing standard.

[0078] For example, based on the PMI and CQI calculation assumption in the current standard, based on the non-energy saving scenario transmission, only the mapping relationship between all ports of a CSI-RS resource and PDSCH ports is specified, and the precoding matrix W is single information. But in the energy saving scenario 1, different sub-configuration should correspond to different port subsets, but each sub-configuration corresponds to all PDSCH ports, so the current mapping relationship is not enough to reflect the real port correspondence relationship in the real energy saving scenario. Therefore, under the current PMI and CQI calculation assumption, the PMI and CQI information calculated by the UE according to the existing technology cannot accurately and completely reflect the real channel quality experienced by the resource port in the energy saving scenario, thereby reducing the data scheduling accuracy and reliability, leading to a decline in data transmission performance and a decline in single user and network overall throughput.

[0079] To solve at least one of the above problems, the embodiments of the present application provide an information processing method, device and communication system.

[0080] Embodiments of the first aspect

[0081] The embodiments of the present application provide an information processing method, which is described from the terminal device side. FIG. 3 is a schematic diagram of an information processing method according to an embodiment of the present application. As shown in FIG. 3, the method comprises:

[0082] 301, a terminal device receives channel state information (CSI) reporting setting information from a network device, wherein the CSI reporting setting information comprises at least one sub-configuration information; and

[0083] 302, the terminal device determines the CSI reporting information based on the related symbols transmitted on the first antenna port related to the sub-configuration information.

[0084] According to the above embodiment, the terminal device receives the CSI reporting setting information including at least one sub-configuration information, and determines the CSI reporting information based on the related symbol transmitted on the first antenna port related to the sub-configuration information, so that the terminal device can determine the related symbol for measuring the CSI of the sub-configuration information according to the sub-configuration information, which helps the terminal device to efficiently and accurately perform CSI measurement and reporting, ensures data transmission performance and realizes network energy saving.

[0085] It is worth noting that the above Fig. 3 only schematically illustrates the embodiments of the present application, but the present application is not limited thereto. For example, the execution order between the operations can be appropriately adjusted, and in addition, some operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications according to the above description, and the present application is not limited to the above Fig. 3.

[0086] In some embodiments, as shown in Fig. 3, the method further comprises:

[0087] 303, the terminal device receives the CSI-RS resource configuration information from the network device.

[0088] The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and the CSI-RS resource set includes at least one CSI-RS resource. The CSI-RS resource can be a time-frequency resource, etc.

[0089] The CSI-RS resource configuration information includes port number indication information (nrofports) used to indicate the number Y of antenna ports of the at least one CSI-RS resource.

[0090] In some embodiments, the port number indication information (nrofports) is used to indicate the number Y of configured ports of each CSI-RS resource in the CSI-RS resource set. The number Y can be an integer less than or equal to 32. The present application is not limited thereto, and the number of ports can also be an integer greater than 32.

[0091] In some embodiments, the CSI reporting setting information includes M sub-configuration information (also referred to as reporting sub-configuration information, energy saving sub-configuration information), where M is an integer greater than or equal to 1. The M sub-configuration information is used to configure M energy saving sub-configurations (also referred to as sub-configurations, reporting sub-configurations). Therefore, the terminal device can determine the CSI-RS resource and / or the corresponding first antenna port for performing CSI channel measurement for each energy saving sub-configuration according to the CSI-RS resource configuration information and / or the CSI reporting setting information, and then can perform CSI measurement according to the related symbol (e.g., CSI-RS) transmitted on the first antenna port.

[0092] In some embodiments, in some power saving scenarios, e.g., power saving scenario 1, the CSI reporting setting information is related to one of the at least one CSI-RS resource set configured by the CSI-RS resource configuration information. Each of the M sub-configuration information in the CSI reporting setting information is related to at least one first CSI-RS resource in the one CSI-RS resource set.

[0093] For example, for the mth sub-configuration information, the mth sub-configuration information is related to one CSI-RS resource set including X CSI-RS resources, where X≥1. More specifically, the mth sub-configuration information is related to K’ first CSI-RS resources in the CSI-RS resource set, where X≥K’≥1. When K’=1, the antenna ports of the first CSI-RS resource constitute the first antenna port related to the mth sub-configuration information. When K’>1, the set of antenna ports of the K’ first CSI-RS resources constitute the first antenna port related to the mth sub-configuration information.

[0094] In other words, the first antenna port related to the sub-configuration information corresponds to at least one first CSI-RS resource, and / or the related symbol transmitted on the first antenna port includes the symbol on at least one first CSI-RS resource, where the at least one first CSI-RS resource is a resource in the CSI-RS resource set related to the sub-configuration information.

[0095] In some embodiments, the mth sub-configuration information of the M sub-configuration information can include 1 port indication information (port-subsetIndicator), 1≤m≤M. The port indication information is used to indicate the enabled port related to the mth sub-configuration information and / or at least one first CSI-RS resource corresponding to the enabled port, i.e., to indicate which ports the terminal device performs channel measurement on. The port indication information of each sub-configuration of the M sub-configuration can be the same or different, e.g., the number of ports of each sub-configuration can be the same or different.

[0096] In some embodiments, the port indication information is a bit map, and the length of the bit map is the product of the number X of CSI-RS resources in the CSI-RS resource set corresponding to the sub-configuration information and the number Y of antenna ports of each CSI-RS resource.

[0097] In the bit map, “1” indicates that the port is enabled, and “0” indicates that the port is not enabled. That is, the number of bits with a value of 1 in the bit map is equal to the number of enabled ports.

[0098] For example, for a CSI-RS resource set, the CSI-RS resource set configures X = 4 CSI-RS resources, each of which can be configured with a maximum of 32 antenna ports. Taking M = 3 and the number of antenna ports (nrofports) Y = 16 as an example, 3 kinds of antenna ports can be configured respectively, for example, 64 ports, 48 ports and 12 ports. Among them, the port indication information can be represented by a bitmap of X * Y = 64 bits. For example, the bit bitmap of the first sub-configuration information can be a 64-bit bitmap with all bits being "1", indicating that the 16 ports of each of the 4 CSI-RS resources collectively constitute the 64 ports related to the first sub-configuration information. The bit bitmap of the second sub-configuration information can be a 64-bit bitmap including 48 "1"s, for example, the 16 ports of each of the last 3 CSI-RS resources of the 4 CSI-RS resources collectively constitute the 48 ports related to the first sub-configuration information. The bit bitmap of the third sub-configuration information can be a 64-bit bitmap including 12 "1"s, for example, the 12 ports of the second CSI-RS resource of the 4 CSI-RS resources constitute the 12 ports related to the first sub-configuration information.

[0099] In other words, the enabled ports indicated by the port indication information of one sub-configuration information can be related to one first CSI-RS resource. Alternatively, the enabled ports indicated by the port indication information of one sub-configuration information can be related to more than one first CSI-RS resource.

[0100] In other words, the enabled ports related to one sub-configuration information are a superset or a subset of the antenna ports of one first CSI-RS resource. Alternatively, the enabled ports related to one sub-configuration information are a set of antenna ports of more than one first CSI-RS resource.

[0101] In some embodiments, when the enabled ports related to one sub-configuration information are a set of antenna ports of more than one first CSI-RS resource, the number of antenna ports of each first CSI-RS resource is equal. The present application is not limited thereto, and the number of antenna ports of each first CSI-RS resource can also be unequal.

[0102] In some embodiments, the number of enabled ports is at least one of the following: a value less than or equal to 32, 48, 64 or 128. The present application is not limited thereto, and the number of enabled ports can also be a value greater than 128, or other values less than 128.

[0103] In some embodiments, the number of at least one first CSI-RS resource includes at least one of the following: 1, 2, 3 or 4. The present application is not limited thereto, and the number of first CSI-RS resources can also be a value greater than 4.

[0104] In some embodiments, the information of the CSI comprises at least: channel quality information (CQI) information, and / or, precoder matrix index (PMI) information.

[0105] wherein the PMI and / or CQI is determined according to a first antenna port, wherein the first antenna port is related to the (configurable) codebook type of the sub-configuration information.

[0106] In the following, the first antenna port corresponding to different codebook types is exemplarily described.

[0107] Case one: the codebook type of the sub-configuration information is a first codebook type, and the first antenna port is determined according to the number P of enabled ports. For example, the first antenna port comprises [3000+0, …, 3000+P-1].

[0108] For example, X=3 CSI-RS resources are configured in the CSI-RS resource set corresponding to the mthsub-configuration information, and the number of antenna ports of each CSI-RS resource is 12. The port indication information of the mthsub-configuration information indicates that the number of enabled ports is 24 through a bit map. The codebook type of the mthsub-configuration information is the first codebook type. Then, the first antenna port related to the mthsub-configuration information comprises [3000+0, 3000+1, …, 3000+23].

[0109] In some embodiments, the first codebook type can be a codebook type supported in Release 15, for example, comprising ‘TypeI-singlePanel’ and / or ‘TypeI-MultiPanel’.

[0110] In some embodiments, the calculation of the PMI and / or CQI information of the CSI reporting information is based at least on a hypothetical physical downlink shared channel (PDSCH) signal. The PDSCH signal is transmitted on antenna ports [1000, …, 1000+ν-1], and the PDSCH signal is related to the related symbol transmitted on the first antenna port, wherein v is the number of PDSCH transmission layers.

[0111] In some embodiments, the related relationship between the PDSCH signal and the related symbol transmitted on the first antenna port related to the mthsub-configuration information is

[0112] wherein, represents the signal vector of the v layers of the PDSCH signal,

[0113] denotes the relevant symbols transmitted on the antenna ports [3000+0, …, 3000+P-1],

[0114] W m (i) denotes the PMI information calculated based on the m-th sub-configuration information.

[0115] Case two: the codebook type of the sub-configuration information is a second codebook type, and the first antenna port is determined according to the number P of enabled ports and / or the number K’ of first CSI-RS resources corresponding to the enabled ports.

[0116] For example, the first antenna port is numbered and sorted based on a first index order, where the first index order is {first polarization direction based on n_2=0 within the 1st to K’th first CSI-RS resource, …, first polarization direction based on n_2=N2-1 within the 1st to K’th first CSI-RS resource, second polarization direction based on n_2=0 within the 1st to K’th first CSI-RS resource, …, second polarization direction based on n_2=N2-1 within the 1st to K’th first CSI-RS resource}, where n_2 is an integer greater than or equal to 0 and less than or equal to N2-1, and N2 is the number of horizontal antenna ports.

[0117] In some embodiments, N2 is configured to take a value in the ‘codebookconfig’ in the CSI reporting configuration in the RRC signaling.

[0118] In some embodiments, the first codebook type can be a codebook type supported in Release 19, for example, the second codebook type includes ‘r19TypeI-singlePanel’ and / or ‘r19TypeI-MultiPanel’.

[0119] In some embodiments, the calculation of the PMI and / or CQI information of the CSI reporting information is based at least on a hypothetical physical downlink shared channel (PDSCH) signal, the PDSCH signal is transmitted on the antenna ports [1000, …, 1000+ν-1], and the PDSCH signal is related to the relevant symbols transmitted on the first antenna port, where v is the number of PDSCH transmission layers.

[0120] In some embodiments, the relevant relationship between the PDSCH signal and the relevant symbols transmitted on the first antenna port related to the m-th sub-configuration information is

[0121] wherein, denotes the signal vector of the v layers of the PDSCH signal,

[0122] denotes the correlation symbol transmitted on the antenna port [3000+p (0) ,…,3000+p (P-1) )-1] of the mth sub-configuration information.

[0123] W m (i) denotes the PMI information calculated based on the mth sub-configuration information.

[0124] wherein, p (i) (0≤i≤P-1) is the first index sequence mentioned above, that is, the first index sequence is related to P and K’.

[0125] In some embodiments, for the M sub-configuration information in the CSI reporting setting information, the calculation and reporting of CSI can be performed for each sub-configuration information in the M sub-configuration information, or the calculation and reporting of CSI can be performed for part of the sub-configuration information in the M sub-configuration information, which is not limited in the present application.

[0126] In some embodiments, in 302, the calculation of PMI and / or CQI can include the following operations: determining the correlation relationship between the PDSCH signal and the correlation symbol on the first antenna port of the mth sub-configuration; and calculating the PMI and / or CQI according to the correlation relationship.

[0127] Next, the calculation method of PMI and / or CQI of the present application will be described in conjunction with specific examples.

[0128] In some embodiments, the antenna ports of the CSI-RS resource have two polarization directions, a first polarization direction and a second polarization direction. The number of antenna ports is equal to the sum of the number of antenna ports in the first polarization direction and the number of antenna ports in the second polarization direction.

[0129] The antenna array has a horizontal direction and a vertical direction, wherein the number of ports in the horizontal direction (the number of columns of the antenna array) is represented by N1, and the number of ports in the vertical direction (the number of rows of the antenna array) is represented by N2.

[0130] In one CSI-RS resource, the antenna port index values in the first polarization direction are continuous, the antenna port index values in the second polarization direction are continuous, and the antenna port index values in the first polarization direction are continuous with the antenna port index values in the second polarization direction.

[0131] Example 1:

[0132] Step 1: The terminal device receives CSI-RS resource configuration information for channel measurement. The CSI-RS resource configuration information is used to configure a set of CSI-RS resources. The CSI-RS resource configuration information at least contains port number indication information ‘nrofports’.

[0133] Figure 4 is a schematic diagram of CSI-RS resource set and enabled ports according to an embodiment of the present application. As shown in Figure 4, the CSI-RS resource set includes X=4 CSI-RS resources; the 'nrofports' of each resource is equal, and is Y=16 ports.

[0134] Step 2: the CSI reporting setting information includes M=2 sub-configuration information, which can be used to configure M=2 sub-configuration CSI reporting information.

[0135] Specifically, the number of enabled ports P of the current sub-configuration can be configured by the port indication information (port-subsetIndicator) of the sub-configuration information.

[0136] Wherein, the port-subsetIndicator is an X*Y=64 bit bitmap configuration.

[0137] As shown in Figure 4, for sub-configuration 1, the ports with index {32-34, 36-38, 40-42, 44-46} in the third resource are enabled by port-subsetIndicator. That is, the number of enabled ports P1=12, and sub-configuration 1 is related to 1 CSI-RS resource.

[0138] Figure 5 is a schematic diagram of enabled ports according to an embodiment of the present application. As shown in Figure 5, the UE can update the index of the 12 enabled ports. For example, according to the number P1 of enabled ports and the relative position relationship, the index values {32-34, 36-38, 40-42, 44-46} are updated to {0-11} in turn.

[0139] Figure 6 is another schematic diagram of CSI-RS resource set and enabled ports according to an embodiment of the present application. As shown in Figure 6, for sub-configuration 2, the ports with index {18, 19, 32, 33, 22, 23, 36, 37, 26, 27, 40, 41, 30, 31, 44, 45} in the 2nd and 3rd resources are enabled by port-subsetIndicator. That is, the number of enabled ports P2=16, and sub-configuration 2 is related to 2 CSI-RS resources.

[0140] Figure 7 is another schematic diagram of enabled ports according to an embodiment of the present application. As shown in Figure 7, the UE can update the index of the 16 enabled ports. For example, according to the number of enabled ports and the relative position relationship, the index values {18, 19, 32, 33, 22, 23, 36, 37, 26, 27, 40, 41, 30, 31, 44, 45} are updated to {0-15} in turn.

[0141] Step 3: Since the traditional NR system supports at most 32 port PMI calculation, when the number of ports of the energy saving sub-configuration is not greater than 32, the codebook type configurable in the current sub-configuration in the CSI reporting setting information is 'TypeI-singlePanel' and / or 'TypeI-MultiPanel', that is, R15 Type I codebook.

[0142] Step 4: The terminal device measures the channel state information under 2 sub- configurations based on 4 resources and sub-configuration information of M=2, and reports all CSI information of the 2 sub-configurations.

[0143] The first antenna port includes [3000+0,…,3000+P-1].

[0144] For sub-configuration 1: 12-port hypothetical CSI-RS transmission and codebook definition are performed through [3000, 3000+1,…3000+11]. That is, the terminal device can calculate PMI based on the channel information of the 12 ports.

[0145] For sub-configuration 2: 16-port hypothetical CSI-RS transmission and codebook definition are performed through [3000, 3000+1,…3000+15]. That is, the terminal device can calculate PMI based on the channel information of the 16 ports.

[0146] Step 5: Based on the following mapping relationship, the terminal device calculates the first SINR (signal-to-interference noise ratio) based on the PMI weighted channel result under the current CSI-RS related port, and calculates the hypothetical SINR of the PDSCH through the resource offset difference (EPRE, energy per resource element) of the PDSCH and the CSI-RS configured by the network device, and the terminal device fits the modulation order and the SINR curve through the calculation result of the current hypothetical SINR, and calculates and reports the optimal CQI through the CQI quantization definition in the standard.

[0147] For sub-configuration 1:

[0148] wherein, represents the signal vector of the v layers of the PDSCH, is the CSI-RS resource symbol transmitted at the antenna port [3000,…,3000+11]. W 1 (i) is the PMI information calculated based on sub-configuration 1.

[0149] For sub-configuration 2:

[0150] wherein, a signal vector representing v layers of PDSCH, is a CSI-RS resource symbol transmitted on antenna ports [3000,..., 3000+15]. 2 (i) is the PMI information calculated based on sub-configuration 2.

[0151] Example 2:

[0152] Step 1: The terminal device receives CSI-RS resource configuration information for channel measurement. The CSI-RS resource configuration information is used to configure a CSI-RS resource set. The CSI-RS resource configuration information at least contains port number indication information 'nrofports'.

[0153] Figure 8 is another schematic diagram of a CSI-RS resource set and enabled ports according to an embodiment of the present application. As shown in Figure 8, the CSI-RS resource set includes X = 4 CSI-RS resources, CSI-RS #1-4; the 'nrofports' of each resource is equal, and is Y = 16 ports.

[0154] Step 2: The CSI reporting setting information includes M = 1 sub-configuration information, which can be used to configure M = 1 sub-configuration CSI reporting information.

[0155] Specifically, the number of enabled ports P of the current sub-configuration can be configured by the port indication information (port-subsetIndicator) of the sub-configuration information.

[0156] Wherein, port-subsetIndicator is an X*Y = 64 bit bitmap configuration.

[0157] As shown in Figure 8, for sub-configuration 1, the ports with index values {16-63} in the second, third, and fourth resource CSI-RS #2-4 are enabled by port-subsetIndicator. That is, the number of enabled ports P1 = 48, and sub-configuration 1 is related to K' = 3 CSI-RS resources.

[0158] Figure 9 is another schematic diagram of enabled ports according to an embodiment of the present application. As shown in Figure 9, the UE can update the indexes of the 48 enabled ports, and is related to K' = 3 resources, and the number of enabled ports in the three resources is the same, which is 16 ports. For example, according to the number and relative position relationship of the enabled ports, the index values {16-63} are updated to {0-47} in turn.

[0159] As shown in FIG. 9, the number of ports in the horizontal direction of the antenna array is 2, that is, the antenna array includes 2 rows, N2=2. The number of ports in the vertical direction of the antenna array is 12, that is, the antenna array includes 12 columns, N1=12.

[0160] Step 4: The terminal device measures the channel state information under the 1st sub-configuration based on the 4 resources and the sub-configuration information of M=1, and reports all the CSI information of the 1st sub-configuration.

[0161] The first antenna ports are numbered and sorted based on a first index order. The first index order is as follows:

[0162] The first antenna ports corresponding to the K' first CSI-RS resources of the sub-configuration are taken as a combined resource, and the enabled ports are mapped to the first antenna ports in the combined resource according to the first polarization direction and the second polarization direction.

[0163] In the combined resource, the antenna ports are arranged in an N2*N1 matrix. The first polarization direction of the antenna ports in the nth_2=0…N2-1 row is mapped to the first polarization direction of the first antenna port, and the second polarization direction of the antenna ports in the nth_2=0…N2-1 row is mapped to the second polarization direction of the first antenna port.

[0164] For the 1st sub-configuration: the 48 ports of the 1st sub-configuration correspond to 3 CSI-RS resources CSI-RS#2-4, which are taken as a combined resource, and the enabled ports are mapped to the first antenna ports in the combined resource according to the first polarization direction and the second polarization direction.

[0165] The first index order is {the first polarization direction of the ports in CSI-RS#2-4 based on n_2=0, the first polarization direction of the ports in CSI-RS#2-4 based on n_2=1, the second polarization direction of the ports in CSI-RS#2-4 based on n_2=0, and the second polarization direction of the ports in CSI-RS#2-4 based on n_2=1}.

[0166] As shown in FIG. 9, within the combined resource composed of the 3 CSI-RS resources, the antenna ports are arranged in a 2*12 matrix. First, the first polarization direction of the antenna ports in the 0th row and the 1st row is mapped to the first polarization direction of the first antenna port, i.e., the first polarization direction of the first antenna port includes [3000, 3000+1, 3000+2, 3000+3, 3000+16, 3000+17, 3000+18, 3000+19, 3000+32, 3000+33, 3000+34, 3000+35, 3000+4, 3000+5, 3000+6, 3000+7, 3000+20, 3000+21, 3000+22, 3000+23, 3000+36, 3000+37, 3000+38, 3000+39]. Then, the second polarization direction of the antenna ports in the 0th row and the 1st row is mapped to the second polarization direction of the first antenna port, i.e., the second polarization direction of the first antenna port includes [3000+8, 3000+9, 3000+10, 3000+11, 3000+24, 3000+25, 3000+26, 3000+27, 3000+40, 3000+41, 3000+42, 3000+43, 3000+12, 3000+13, 3000+14, 3000+15, 3000+28, 3000+29, 3000+30, 3000+31, 3000+44, 3000+45, 3000+46, 3000+47].

[0167] The 48-port hypothetical CSI-RS transmission and codebook definition are performed by [3000, 3000+1, 3000+2, 3000+3, 3000+16, 3000+17, 3000+18, 3000+19, 3000+32, 3000+33, 3000+34, 3000+35, 3000+4, 3000+5, 3000+6, 3000+7, 3000+20, 3000+21, 3000+22, 3000+23, 3000+36, 3000+37, 3000+38, 3000+39, 3000+8, 3000+9, 3000+10, 3000+11, 3000+24, 3000+25, 3000+26, 3000+27, 3000+40, 3000+41, 3000+42, 3000+43, 3000+12, 3000+13, 3000+14, 3000+15, 3000+28, 3000+29, 3000+30, 3000+31, 3000+44, 3000+45, 3000+46, 3000+47]. That is, the terminal device can perform PMI calculation based on the channel information of the 48 ports.

[0168] Step 5: Based on the mapping relationship described below, the terminal device calculates the first SINR (signal-to-noise ratio) based on the PMI weighted channel result under the current CSI-RS related port, and calculates the hypothetical SINR of PDSCH through the resource offset difference (EPRE, energy per resource element) of PDSCH and CSI-RS configured by the network device, and the terminal device fits the modulation order and SINR curve through the calculation result of the current hypothetical SINR, and calculates and reports the optimal CQI through the CQI quantization definition in the standard.

[0169] For sub-configuration 1:

[0170] Wherein, represents the signal vector of the v layers of PDSCH signals,

[0171] represents the relevant symbols transmitted on the antenna ports [3000, 3000+1, 3000+2, 3000+3, 3000+16, 3000+17, 3000+18, 3000+19, 3000+32, 3000+33, 3000+34, 3000+35, 3000+4, 3000+5, 3000+6, 3000+7, 3000+20, 3000+21, 3000+22, 3000+23, 3000+36, 3000+37, 3000+38, 3000+39, 3000+8, 3000+9, 3000+10, 3000+11, 3000+24, 3000+25, 3000+26, 3000+27, 3000+40, 3000+41, 3000+42, 3000+43, 3000+12, 3000+13, 3000+14, 3000+15, 3000+28, 3000+29, 3000+30, 3000+31, 3000+44, 3000+45, 3000+46, 3000+47],

[0172] W 1 (i) represents the PMI information calculated based on sub-configuration 1.

[0173] In some embodiments, the CSI can be calculated according to the determined mapping relationship, which can include PMI, CQI, etc. Wherein, the specific way of calculating the CSI according to the mapping relationship is as described above, for example, the UE calculates the first SINR (signal to interference noise ratio) based on the CSI-RS related port (assumed port) by weighting the channel result H obtained by the channel estimation according to the CSI-RS through precoding W (PMI information), and calculates the assumed SINR of the PDSCH by the resource offset difference (EPRE, energy per resource element) of the PDSCH and the CSI-RS configured by the network device, and the terminal device fits the modulation order and the SINR curve by the calculation result of the current assumed SINR, and calculates and reports the optimal CQI by the standard CQI quantization definition. The present application is not limited to this, and the specific way of calculating the CSI according to the mapping relationship can also refer to related technologies.

[0174] The above various embodiments only exemplarily illustrate the embodiments of the present application, but the present application is not limited thereto, and can also be appropriately modified on the basis of the above various embodiments. For example, the above various embodiments can be used alone, or one or more of the above various embodiments can be combined.

[0175] As can be seen from the above embodiments, the terminal device receives the CSI reporting setting information including at least one sub-configuration information, and determines the CSI reporting information based on the related symbol transmitted on the first antenna port related to the sub-configuration information, so that the terminal device can determine the related symbol for measuring the CSI of the sub-configuration information according to the sub-configuration information, which helps the terminal device to efficiently and accurately perform CSI measurement and reporting, ensures data transmission performance and realizes network energy saving.

[0176] Embodiments of the second aspect

[0177] The embodiments of the present application provide an information processing method, which is applied to the network device side. The embodiments of the present application can be combined with the embodiments of the first aspect, or can be implemented alone. The same content as the embodiments of the first aspect will not be described again.

[0178] FIG. 10 is a schematic diagram of an information processing method according to an embodiment of the present application. As shown in FIG. 10, the method includes:

[0179] 1001, the network device sends channel state information (CSI) reporting setting information to the terminal device, wherein the CSI reporting setting information includes at least one sub-configuration information; and

[0180] 1002, the network device receives the CSI reporting information sent by the terminal device, and the CSI reporting information is determined based on the related symbol transmitted on the first antenna port related to the sub-configuration information.

[0181] In some embodiments, the network device further transmits CSI-RS resource configuration information, wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, the CSI-RS resource set comprises at least one CSI-RS resource, and the CSI-RS resource configuration information comprises port number indication information (nrofports) used to indicate the number of antenna ports of the at least one CSI-RS resource.

[0182] In some embodiments, the first antenna port corresponds to at least one first CSI-RS resource, and / or the related symbol comprises a symbol on the at least one first CSI-RS resource, wherein the at least one first CSI-RS resource is a resource in the CSI-RS resource set.

[0183] In some embodiments, the sub-configuration information comprises port indication information (port-subsetIndicator) used to indicate the enabled port related to the sub-configuration information and / or at least one first CSI-RS resource corresponding to the enabled port.

[0184] In some embodiments, the number of the enabled port is at least one of: a value less than or equal to 32, 48, 64 or 128; and / or the number of the at least one first CSI-RS resource comprises at least one of: 1, 2, 3 or 4.

[0185] In some embodiments, the port indication information is a bit map, and the length of the bit map is the product of the number X of CSI-RS resources in the CSI-RS resource set corresponding to the sub-configuration information and the number Y of antenna ports of each CSI-RS resource.

[0186] In some embodiments, the number of bit values equal to 1 in the bit map is equal to the number of the enabled port.

[0187] In some embodiments, the enabled port indicated by the port indication information of one of the sub-configuration information is related to one first CSI-RS resource, and / or the enabled port indicated by the port indication information of one of the sub-configuration information is related to more than one first CSI-RS resource.

[0188] In some embodiments, the enabled port related to one of the sub-configuration information is a full set or a subset of the antenna ports of one first CSI-RS resource, and / or the enabled port related to one of the sub-configuration information is a set of antenna ports of more than one first CSI-RS resource.

[0189] In some embodiments, the CSI reporting information comprises PMI and / or CQI, the PMI and / or the CQI are determined according to the first antenna port, wherein the first antenna port is related to a codebook type of the sub-configuration information.

[0190] In some embodiments, the codebook type of the sub-configuration information is a first codebook type, and the first antenna port is determined according to the number P of the enabled ports.

[0191] In some embodiments, the first antenna port comprises [3000+0, …, 3000+P-1].

[0192] In some embodiments, the first codebook type comprises ‘TypeI-singlePanel’ and / or ‘TypeI-MultiPanel’.

[0193] In some embodiments, the CQI information of the CSI reporting information is calculated based on at least a hypothetical physical downlink shared channel (PDSCH) signal, the PDSCH signal is transmitted on antenna ports [1000, …, 1000+ν-1], the PDSCH signal is related to a related symbol transmitted on the first antenna port, wherein v is the number of PDSCH transmission layers.

[0194] In some embodiments, the PDSCH signal has a relationship with the related symbol transmitted on the first antenna port related to the mthsub-configuration information, and the relationship is

[0195] wherein, represents a signal vector of v layers of the PDSCH signal,

[0196] represents a related symbol transmitted on antenna ports [3000+0, …, 3000+P-1],

[0197] W m (i) represents PMI information calculated based on the mthsub-configuration information.

[0198] In some embodiments, the codebook type of the sub-configuration information is a second codebook type, and the first antenna port is determined according to the number P of the enabled ports and / or the number K’ of the first CSI-RS resources corresponding to the enabled ports.

[0199] In some embodiments, the first antenna ports are numbered based on a first index order, wherein the first index order is {first polarization direction based n_2=0 of 1st to K’th first CSI-RS resource inner ports, …, first polarization direction based n_2=N2-1 of 1st to K’th first CSI-RS resource inner ports, second polarization direction based n_2=0 of 1st to K’th first CSI-RS resource inner ports, …, second polarization direction based n_2=N2-1 of 1st to K’th first CSI-RS resource inner ports}, wherein n_2 is an integer greater than or equal to 0 and less than or equal to N2-1, and N2 is a number of horizontal direction antenna ports.

[0200] In some embodiments, N2 is configured in ‘codebookconfig’ in CSI reporting configuration in RRC signaling.

[0201] In some embodiments, the second codebook type includes ‘r19TypeI-singlePanel’ and or ‘r19TypeI-MultiPanel’.

[0202] In some embodiments, the calculation of the CQI information of the CSI reporting information is based on at least a hypothetical physical downlink shared channel (PDSCH) signal, the PDSCH signal is transmitted on antenna ports [1000, …, 1000+v-1], the PDSCH signal is related to a related symbol transmitted on the first antenna port, wherein v is a number of PDSCH transmission layers.

[0203] In some embodiments, when the sub-configuration information related enabled ports is a set of antenna ports of more than one first CSI-RS resource, the number of antenna ports of each first CSI-RS resource is equal.

[0204] It should be noted that the above drawings only schematically illustrate the embodiments of the present application, but the present application is not limited thereto. For example, the execution order between the operations can be appropriately adjusted, and in addition, some operations can be added or some operations can be reduced. Those skilled in the art can appropriately modify the above based on the above, and the above drawings are not limited thereto.

[0205] The above embodiments only exemplarily illustrate the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications can be made based on the above embodiments. For example, the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0206] From the above embodiments, the terminal device receives CSI reporting setting information including at least one sub-configuration information, and determines the CSI reporting information based on the related symbols transmitted on the first antenna port related to the sub-configuration information. Therefore, the terminal device can determine the related symbols for measuring the CSI of the sub-configuration information according to the sub-configuration information, which helps the terminal device to efficiently and accurately perform CSI measurement and reporting, ensures data transmission performance, and realizes network energy saving.

[0207] Embodiments of the third aspect

[0208] Embodiments of the present application provide an information processing device. The device may, for example, be a terminal device, or one or more components or assemblies configured in the terminal device. The same content as the embodiments of the first aspect will not be repeated.

[0209] FIG. 11 is a schematic diagram of an information processing device according to an embodiment of the present application. As shown in FIG. 11, the information processing device 1100 includes:

[0210] a receiving unit 1101 configured to receive channel state information (CSI) reporting setting information from a network device, wherein the CSI reporting setting information includes at least one sub-configuration information; and

[0211] a processing unit 1102 configured to determine the CSI reporting information based on related symbols transmitted on a first antenna port related to the sub-configuration information.

[0212] In some embodiments, the network device further transmits CSI-RS resource configuration information, wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, the CSI-RS resource set includes at least one CSI-RS resource, and the CSI-RS resource configuration information includes port number indication information (nrofports) used to indicate the number of antenna ports of the at least one CSI-RS resource.

[0213] In some embodiments, the first antenna port corresponds to at least one first CSI-RS resource, and / or the related symbols include symbols on at least one first CSI-RS resource, wherein the at least one first CSI-RS resource is a resource in the CSI-RS resource set.

[0214] In some embodiments, the sub-configuration information includes port indication information (port-subsetIndicator), and the port indication information is used to indicate an enabled port related to the sub-configuration information and / or at least one first CSI-RS resource corresponding to the enabled port.

[0215] In some embodiments, the number of the enabled ports is at least one of: a value less than or equal to 32, 48, 64, or 128; and / or the number of the at least one first CSI-RS resource comprises at least one of: 1, 2, 3, or 4.

[0216] In some embodiments, the port indication information is a bitmap, a length of the bitmap is a product of a number X of CSI-RS resources in a CSI-RS resource set corresponding to the sub-configuration information and a number Y of antenna ports per CSI-RS resource.

[0217] In some embodiments, a number of bits with a value of 1 in the bitmap is equal to the number of the enabled ports.

[0218] In some embodiments, the enabled ports indicated by the port indication information of one of the sub-configuration information are related to one first CSI-RS resource, and / or the enabled ports indicated by the port indication information of one of the sub-configuration information are related to more than one first CSI-RS resource.

[0219] In some embodiments, the enabled ports related to one of the sub-configuration information are a full set or a subset of antenna ports of one first CSI-RS resource, and / or the enabled ports related to one of the sub-configuration information are a set of antenna ports of more than one first CSI-RS resource.

[0220] In some embodiments, the CSI reporting information comprises PMI and / or CQI, the PMI and / or the CQI are determined according to the first antenna ports, wherein the first antenna ports are related to a codebook type of the sub-configuration information.

[0221] In some embodiments, the codebook type of the sub-configuration information is a first codebook type, the first antenna ports are determined according to a number P of the enabled ports.

[0222] In some embodiments, the first antenna ports comprise [3000+0, …, 3000+P-1].

[0223] In some embodiments, the first codebook type comprises ‘TypeI-singlePanel’ and / or ‘TypeI-MultiPanel’.

[0224] In some embodiments, calculation of CQI information of the CSI reporting information is based on at least a hypothetical physical downlink shared channel (PDSCH) signal, the PDSCH signal is transmitted on antenna ports [1000, …, 1000+ v-1], the PDSCH signal is related to a related symbol transmitted on the first antenna ports, wherein v is a number of PDSCH transmission layers.

[0225] In some embodiments, the PDSCH signal is related to the related symbols transmitted on the first antenna port related to the mth sub-configuration information, and the relationship is

[0226] wherein, represents a signal vector of v layers of the PDSCH signal,

[0227] represents the related symbols transmitted on the antenna port [3000+0,…,3000+P-1],

[0228] W m (i) represents the PMI information calculated based on the mth sub-configuration information.

[0229] In some embodiments, the codebook type of the sub-configuration information is a second codebook type, and the first antenna port is determined according to the number of enabled ports P and / or the number of first CSI-RS resources corresponding to the enabled ports K’.

[0230] In some embodiments, the first antenna port is numbered and sorted based on a first index order, wherein the first index order is {first polarization direction based on n_2=0 within the 1st to K’th first CSI-RS resource, …, first polarization direction based on n_2=N2-1 within the 1st to K’th first CSI-RS resource, second polarization direction based on n_2=0 within the 1st to K’th first CSI-RS resource, …, second polarization direction based on n_2=N2-1 within the 1st to K’th first CSI-RS resource}, wherein n_2 is an integer greater than or equal to 0 and less than or equal to N2-1, and N2 is the number of horizontal antenna ports.

[0231] In some embodiments, N2 is configured to take a value in the ‘codebookconfig’ in the CSI reporting setting (reporting configuration) in the RRC signaling.

[0232] In some embodiments, the second codebook type includes ‘r19TypeI-singlePanel’ and / or ‘r19TypeI-MultiPanel’.

[0233] In some embodiments, the calculation of the CQI information of the CSI reporting information is based at least on a hypothetical physical downlink shared channel (PDSCH) signal, the PDSCH signal is transmitted on the antenna port [1000,…,1000+ν-1], and the PDSCH signal is related to the related symbols transmitted on the first antenna port, wherein v is the number of PDSCH transmission layers.

[0234] In some embodiments, when the enabled port related to the sub-configuration information is a set of antenna ports of more than one first CSI-RS resource, the number of antenna ports of each first CSI-RS resource is equal.

[0235] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The information processing apparatus can also include other components or modules, and the specific content of these components or modules can be referred to related technologies.

[0236] In addition, for the sake of simplicity, only the connection relationship or signal path between the components or modules is exemplarily shown in the above figures, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above components or modules can be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the present application is not limited thereto.

[0237] As can be seen from the above embodiments, the terminal device receives CSI reporting setting information including at least one sub-configuration information, and determines the CSI reporting information based on the relevant symbols transmitted on the first antenna port related to the sub-configuration information, so that the terminal device can determine the relevant symbols for measuring the CSI of the sub-configuration information according to the sub-configuration information, which helps the terminal device to efficiently and accurately perform CSI measurement and reporting, ensures data transmission performance and realizes network energy saving.

[0238] Embodiments of the fourth aspect

[0239] The embodiments of the present application provide an information processing apparatus. The apparatus can be a network device, or one or more components or components configured in the network device. The same content as the embodiments of the second aspect will not be described again.

[0240] FIG. 12 is a schematic diagram of an information processing apparatus according to an embodiment of the present application. As shown in FIG. 12, the information processing apparatus 1200 includes:

[0241] a sending unit 1201 configured to send channel state information (CSI) reporting setting information to a terminal device, wherein the CSI reporting setting information includes at least one sub-configuration information; and

[0242] a receiving unit 1202 configured to receive CSI reporting information sent by the terminal device, wherein the CSI reporting information is determined based on relevant symbols transmitted on a first antenna port related to the sub-configuration information.

[0243] In some embodiments, the network device further transmits CSI-RS resource configuration information, wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, the CSI-RS resource set comprises at least one CSI-RS resource, and the CSI-RS resource configuration information comprises port number indication information (nrofports) used to indicate the number of antenna ports of the at least one CSI-RS resource.

[0244] In some embodiments, the first antenna port corresponds to at least one first CSI-RS resource, and / or the related symbol comprises a symbol on the at least one first CSI-RS resource, wherein the at least one first CSI-RS resource is a resource in the CSI-RS resource set.

[0245] In some embodiments, the sub-configuration information comprises port indication information (port-subsetIndicator) used to indicate the enabled port related to the sub-configuration information and / or at least one first CSI-RS resource corresponding to the enabled port.

[0246] In some embodiments, the number of the enabled port is at least one of: a value less than or equal to 32, 48, 64 or 128; and / or the number of the at least one first CSI-RS resource comprises at least one of: 1, 2, 3 or 4.

[0247] In some embodiments, the port indication information is a bit map, and the length of the bit map is the product of the number X of CSI-RS resources in the CSI-RS resource set corresponding to the sub-configuration information and the number Y of antenna ports of each CSI-RS resource.

[0248] In some embodiments, the number of bit values equal to 1 in the bit map is equal to the number of the enabled port.

[0249] In some embodiments, the enabled port indicated by the port indication information of one of the sub-configuration information is related to one first CSI-RS resource, and / or the enabled port indicated by the port indication information of one of the sub-configuration information is related to more than one first CSI-RS resource.

[0250] In some embodiments, the enabled port related to one of the sub-configuration information is a full set or a subset of the antenna ports of one first CSI-RS resource, and / or the enabled port related to one of the sub-configuration information is a set of antenna ports of more than one first CSI-RS resource.

[0251] In some embodiments, the CSI reporting information comprises PMI and / or CQI, the PMI and / or the CQI are determined according to the first antenna port, wherein the first antenna port is related to a codebook type of the sub-configuration information.

[0252] In some embodiments, the codebook type of the sub-configuration information is a first codebook type, and the first antenna port is determined according to the number P of the enabled ports.

[0253] In some embodiments, the first antenna port comprises [3000+0, …, 3000+P-1].

[0254] In some embodiments, the first codebook type comprises ‘TypeI-singlePanel’ and / or ‘TypeI-MultiPanel’.

[0255] In some embodiments, the CQI information of the CSI reporting information is calculated based on at least a hypothetical physical downlink shared channel (PDSCH) signal, the PDSCH signal is transmitted on antenna ports [1000, …, 1000+v-1], the PDSCH signal is related to a relevant symbol transmitted on the first antenna port, wherein v is the number of PDSCH transmission layers.

[0256] In some embodiments, the PDSCH signal is related to the relevant symbol transmitted on the first antenna port related to the mthsub-configuration information, and the relationship is

[0257] wherein, represents a signal vector of v layers of the PDSCH signal,

[0258] represents a relevant symbol transmitted on antenna ports [3000+0, …, 3000+P-1],

[0259] W m (i) represents PMI information calculated based on the mthsub-configuration information.

[0260] In some embodiments, the codebook type of the sub-configuration information is a second codebook type, and the first antenna port is determined according to the number P of the enabled ports and / or the number K’ of the first CSI-RS resources corresponding to the enabled ports.

[0261] In some embodiments, the first antenna ports are numbered and ordered based on a first index order, wherein the first index order is {first polarization direction based n_2=0 of 1st to K'th first CSI-RS resource inner ports, …, first polarization direction based n_2=N2-1 of 1st to K'th first CSI-RS resource inner ports, second polarization direction based n_2=0 of 1st to K'th first CSI-RS resource inner ports, …, second polarization direction based n_2=N2-1 of 1st to K'th first CSI-RS resource inner ports}, wherein n_2 is an integer greater than or equal to 0 and less than or equal to N2-1, and N2 is a number of horizontal direction antenna ports.

[0262] In some embodiments, N2 is configured in the 'codebookconfig' in the CSI reporting configuration in the RRC signaling.

[0263] In some embodiments, the second codebook type includes 'r19TypeI-singlePanel' and or 'r19TypeI-MultiPanel'.

[0264] In some embodiments, the calculation of the CQI information of the CSI reporting information is based on at least a hypothetical physical downlink shared channel (PDSCH) signal, the PDSCH signal is transmitted on antenna ports [1000, …, 1000+v-1], the PDSCH signal is related to the related symbol transmitted on the first antenna port, wherein v is a number of PDSCH transmission layers.

[0265] In some embodiments, when the sub-configuration information related enabled ports are a set of antenna ports of more than one first CSI-RS resource, the number of antenna ports of each first CSI-RS resource is equal.

[0266] The above various embodiments are only exemplarily described for the embodiments of the present application, but the present application is not limited thereto, and can be appropriately modified on the basis of the above various embodiments. For example, the above various embodiments can be used alone, or one or more of the above various embodiments can be combined.

[0267] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The information processing apparatus can also include other components or modules, and the specific content of these components or modules can be referred to the related technology.

[0268] In addition, for the sake of simplicity, only the connection relationship or signal direction between the various components or modules is exemplarily shown in the above figures, but it should be clear to those skilled in the art that various related technologies such as bus connection can be adopted. The various components or modules described above can be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the present application does not limit this.

[0269] As can be seen from the above embodiments, the terminal device receives CSI reporting setting information including at least one sub-configuration information, and determines the CSI reporting information based on the relevant symbols transmitted on the first antenna port related to the sub-configuration information, so that the terminal device can determine the relevant symbols for measuring the CSI of the sub-configuration information according to the sub-configuration information, which helps the terminal device to efficiently and accurately perform CSI measurement and reporting, ensures data transmission performance and realizes network energy saving.

[0270] Embodiments of the fifth aspect

[0271] The embodiments of the present application also provide a communication system, which can refer to FIG. 1, and the same content as the embodiments of the first aspect to the fourth aspect will not be repeated.

[0272] In some embodiments, the communication system 100 can at least include a network device and a terminal device.

[0273] The network device sends channel state information (CSI) reporting setting information to the terminal device, wherein the CSI reporting setting information includes at least one sub-configuration information, and the network device receives the CSI reporting information sent by the terminal device, wherein the CSI reporting information is determined based on the relevant symbols transmitted on the first antenna port related to the sub-configuration information.

[0274] The terminal device receives the channel state information (CSI) reporting setting information sent by the network device, and determines the CSI reporting information based on the relevant symbols transmitted on the first antenna port related to the sub-configuration information.

[0275] The embodiments of the present application also provide a network device, which can be a base station for example, but the present application is not limited thereto, and can also be other network devices.

[0276] FIG. 13 is a schematic diagram of the structure of a network device according to an embodiment of the present application. As shown in FIG. 13, the network device 1300 can include a processor 1310 (such as a central processing unit CPU) and a memory 1320; the memory 1320 is coupled to the processor 1310. The memory 1320 can store various data; in addition, it also stores a program 1330 for information processing, and executes the program 1330 under the control of the processor 1310.

[0277] For example, the processor 1310 can be configured to execute programs to implement the method according to the embodiments of the second aspect. For example, the processor 1310 can be configured to perform the following control: the network device sends channel state information (CSI) reporting setting information to the terminal device, wherein the CSI reporting setting information comprises at least one sub-configuration information; and the network device receives the CSI reporting information sent by the terminal device, wherein the CSI reporting information is determined based on the relevant symbols transmitted on the first antenna port related to the sub-configuration information.

[0278] In addition, as shown in FIG. 13, the network device 1300 can further include a transceiver 1340, an antenna 1350, and the like; wherein the functions of the above components are similar to those of the related art, which will not be described here. It should be noted that the network device 1300 does not necessarily include all the components shown in FIG. 13; in addition, the network device 1300 can also include components not shown in FIG. 13, which can be referred to the related art.

[0279] The embodiments of the present application also provide a terminal device, but the present application is not limited thereto, and can also be other devices.

[0280] FIG. 14 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in FIG. 14, the terminal device 1400 can include a processor 1410 and a memory 1420; the memory 1420 stores data and programs and is coupled to the processor 1410. It should be noted that this figure is exemplary; other types of structures can also be used to supplement or replace this structure to achieve telecommunication functions or other functions.

[0281] For example, the processor 1410 can be configured to execute programs to implement the method according to the embodiments of the first aspect. For example, the processor 1410 can be configured to perform the following control: the terminal device receives channel state information (CSI) reporting setting information from the network device, wherein the CSI reporting setting information comprises at least one sub-configuration information; and the terminal device determines the CSI reporting information based on the relevant symbols transmitted on the first antenna port related to the sub-configuration information.

[0282] As shown in FIG. 14, the terminal device 1400 can further include a communication module 1430, an input unit 1440, a display 1450, and a power supply 1460. The functions of the above components are similar to those of the related art, which will not be described here. It should be noted that the terminal device 1400 does not necessarily include all the components shown in FIG. 14, and the above components are not essential; in addition, the terminal device 1400 can also include components not shown in FIG. 14, which can be referred to the related art.

[0283] The embodiment of the present application further provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to perform the method in the embodiment of the first aspect.

[0284] The embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program causes a terminal device to perform the method in the embodiment of the first aspect.

[0285] The embodiment of the present application further provides a computer program, wherein when the program is executed in a network device, the program causes the network device to perform the method in the embodiment of the second aspect.

[0286] The embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program causes a network device to perform the method in the embodiment of the second aspect.

[0287] The above apparatus and method of the present application can be realized by hardware, or by hardware in combination with software. The present application relates to a computer readable program, which, when executed by a logic component, causes the logic component to realize the above-described apparatus or constituent components, or causes the logic component to realize the above-described various methods or steps. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0288] The method / apparatus described in combination with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in the figures and / or a combination of one or more of the functional block diagrams can correspond to each software module of a computer program flow, or can correspond to each hardware module. The software modules can correspond to each step shown in the figures, respectively. These hardware modules can be realized by, for example, fixing the software modules with a field programmable gate array (FPGA).

[0289] The software modules can be located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a mobile disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium can be coupled to a processor, so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium can be an integral part of the processor. The processor and the storage medium can be located in an ASIC. The software modules can be stored in a memory of the mobile terminal, or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a MEGA-SIM card or a large-capacity flash memory device, the software modules can be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0290] One or more of the functional blocks described in the accompanying drawings and / or one or more combinations of the functional blocks can be implemented as a general- purpose processor, a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any appropriate combination thereof for performing the functions described in this application. One or more of the functional blocks described in the accompanying drawings and / or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0291] The application has been described in conjunction with the specific embodiments thereof, but it will be evident that many alternatives, modifications and variations can be made to the application without departing from the spirit and scope thereof as set forth in the preceding description. Accordingly, the application includes all such alternatives, modifications and variations as falling within the scope of the appended claims.

[0292] With respect to the embodiments including the above embodiments, the following supplementary notes are also disclosed:

[0293] Supplementary note 1. An information processing method applied to a terminal device, the method comprising:

[0294] receiving, by the terminal device, channel state information (CSI) reporting setting information from a network device, wherein the CSI reporting setting information comprises at least one sub-configuration information; and

[0295] determining, by the terminal device, CSI reporting information based on relevant symbols transmitted on a first antenna port related to the sub-configuration information.

[0296] Supplementary note 2. The method of supplementary note 1, wherein:

[0297] the CSI reporting information comprises a PMI and / or a CQI, the PMI and / or the CQI being determined according to the first antenna port, wherein the first antenna port is related to a codebook type of the sub-configuration information.

[0298] Supplementary note 3. The method of supplementary note 2, wherein:

[0299] the codebook type of the sub-configuration information is a first codebook type, and the first antenna port is determined according to a number P of the enabled ports.

[0300] Supplementary note 4. The method of supplementary note 3, wherein:

[0301] The first antenna port comprises [3000+0,…,3000+P-1].

[0302] Clause 5. The method of clause 3, wherein,

[0303] The codebook type of the sub-configuration information is a second codebook type, and the first antenna port is determined according to the number P of enabled ports and / or the number K’ of first CSI-RS resources corresponding to the enabled ports.

[0304] Clause 6. The method of clause 5, wherein,

[0305] The first antenna port is numbered and ordered based on a first index order, wherein the first index order is {first polarization direction based on n_2=0 within the 1st to K’th first CSI-RS resource, …, first polarization direction based on n_2=N2-1 within the 1st to K’th first CSI-RS resource, second polarization direction based on n_2=0 within the 1st to K’th first CSI-RS resource, …, second polarization direction based on n_2=N2-1 within the 1st to K’th first CSI-RS resource},

[0306] wherein n_2 is an integer greater than or equal to 0 and less than or equal to N2-1, and N2 is the number of antenna ports in the horizontal direction.

[0307] Clause 7. An information processing method applied to a network device, the method comprising:

[0308] The network device sends channel state information (CSI) reporting setting information to a terminal device, wherein the CSI reporting setting information comprises at least one sub-configuration information; and

[0309] The network device receives CSI reporting information sent by the terminal device, wherein the CSI reporting information is determined based on related symbols transmitted on first antenna ports related to the sub-configuration information.

[0310] Clause 8. The method of clause 7, wherein,

[0311] The CSI reporting information comprises PMI and / or CQI, and the PMI and / or the CQI are determined according to the first antenna port, wherein the first antenna port is related to the codebook type of the sub-configuration information.

[0312] Clause 9. The method of clause 8, wherein,

[0313] The codebook type of the sub-configuration information is a first codebook type, and the first antenna port is determined according to the number P of enabled ports.

[0314] Paragraph 10. The method of paragraph 8, wherein,

[0315] The codebook type of the sub-configuration information is a second codebook type, and the first antenna port is determined according to the number P of the enabled ports and / or the number K’ of the first CSI-RS resources corresponding to the enabled ports.

Claims

1. An information processing apparatus configured to operate at a terminal device, the apparatus comprising: a receiving unit configured to receive channel state information (CSI) reporting setting information from a network device, wherein the CSI reporting setting information comprises at least one sub-configuration information; and a processing unit configured to determine CSI reporting information based on a relevant symbol transmitted on a first antenna port associated with the sub-configuration information. 2.The apparatus of claim 1, wherein: the receiving unit is further configured to receive CSI-RS resource configuration information, wherein the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, the CSI-RS resource set comprises at least one CSI-RS resource, and the CSI-RS resource configuration information comprises port number indication information (nrofports) used to indicate a number of antenna ports of the at least one CSI-RS resource. 3.The apparatus of claim 1, wherein: the sub-configuration information comprises port indication information (port-subsetIndicator) used to indicate enabled ports associated with the sub-configuration information and / or at least one first CSI-RS resource corresponding to the enabled ports. 4.The apparatus of claim 3, wherein: the port indication information is a bitmap, and a length of the bitmap is a product of a number X of CSI-RS resources in a CSI-RS resource set corresponding to the sub-configuration information and a number Y of antenna ports of each CSI-RS resource. 5.The apparatus of claim 4, wherein: a number of bits with a value of 1 in the bitmap is equal to a number of the enabled ports. 6.The apparatus of claim 3, wherein: the enabled ports indicated by the port indication information of one of the sub-configuration information are associated with one first CSI-RS resource, and / or the enabled ports indicated by the port indication information of one of the sub-configuration information are associated with more than one first CSI-RS resource. 7.The apparatus of claim 1, wherein: the enabled ports associated with one of the sub-configuration information are a full set or a subset of antenna ports of one first CSI-RS resource, and / or the enabled ports associated with one of the sub-configuration information are a set of antenna ports of more than one first CSI-RS resource. 8.The apparatus of claim 6 or 7, wherein: the CSI reporting information comprises a PMI and / or a CQI, the PMI and / or the CQI are determined according to the first antenna port, and the first antenna port is associated with a codebook type of the sub-configuration information. 9.The apparatus of claim 8, wherein: the codebook type of the sub-configuration information is a first codebook type, and the first antenna port is determined according to a number P of the enabled ports. 10.The apparatus of claim 9, wherein: the first antenna port comprises [3000+0,…,3000+P-1]. 11.The apparatus of claim 9, wherein: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The first codebook type includes ‘TypeI-singlePanel’ and / or ‘TypeI-MultiPanel’.

12. The apparatus of claim 9, wherein, The calculation of the CQI information of the CSI reporting information is based on at least a hypothetical physical downlink shared channel (PDSCH) signal transmitted on antenna ports [1000, …, 1000+ν-1], where v is a number of PDSCH transmission layers, and the PDSCH signal is related to the related symbols transmitted on the first antenna ports.

13. The apparatus of claim 12, wherein, The correlation relationship of the PDSCH signal and the relevant symbol transmitted on the first antenna port related to the mth sub configuration information is wherein a signal vector representing v layers of the PDSCH signal, a signal representing the related symbols transmitted on antenna ports [3000+0, …, 3000+P-1], W m (i) denotes PMI information calculated based on the mthsub-configuration information.

14. The apparatus of claim 8, wherein, The codebook type of the sub-configuration information is a second codebook type, and the first antenna ports are determined according to the number P of the enabled ports and / or the number K’ of the first CSI-RS resources corresponding to the enabled ports.

15. The apparatus of claim 14, wherein, The first antenna ports are numbered and ordered based on a first index order, where the first index order is {first polarization direction based on n_2=0 within the 1st to K’th first CSI-RS resources, …, first polarization direction based on n_2=N2-1 within the 1st to K’th first CSI-RS resources, second polarization direction based on n_2=0 within the 1st to K’th first CSI-RS resources, …, second polarization direction based on n_2=N2-1 within the 1st to K’th first CSI-RS resources}, where n_2 is an integer greater than or equal to 0 and less than or equal to N2-1, and N2 is a number of antenna ports in a horizontal direction.

16. The apparatus of claim 14, wherein, The second codebook type includes ‘r19TypeI-singlePanel’ and / or ‘r19TypeI-MultiPanel’.

17. The apparatus of claim 14, wherein, The calculation of the CQI information of the CSI reporting information is based on at least a hypothetical physical downlink shared channel (PDSCH) signal transmitted on antenna ports [1000, …, 1000+ν-1], where v is a number of PDSCH transmission layers, and the PDSCH signal is related to the related symbols transmitted on the first antenna ports.

18. The apparatus of claim 7, wherein, When the enabled ports related to the sub-configuration information are a set of antenna ports of more than one first CSI-RS resource, the number of antenna ports of each first CSI-RS resource is equal.

19. An information processing apparatus configured to operate in a network device, the apparatus comprising: a transmitting unit configured to transmit, to a terminal device, channel state information (CSI) reporting setting information, wherein the CSI reporting setting information includes at least one sub-configuration information; and a receiving unit configured to receive, from the terminal device, a CSI report based on the CSI reporting setting information. A receiving unit receives CSI reporting information sent by a terminal device, wherein the CSI reporting information is determined based on a relevant symbol transmitted on a first antenna port related to the sub-configuration information. The network device and the terminal device, 20. A communication system, the system comprising: The network device sends channel state information (CSI) reporting setting information to the terminal device, wherein the CSI reporting setting information comprises at least one sub-configuration information, the network device receives CSI reporting information sent by the terminal device, and the CSI reporting information is determined based on a relevant symbol transmitted on a first antenna port related to the sub-configuration information. The terminal device receives the channel state information (CSI) reporting setting information sent by the network device and determines the CSI reporting information based on a relevant symbol transmitted on a first antenna port related to the sub-configuration information. ​

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