Channel state information reporting and configuration method and apparatus

Abstract

Embodiments of the present application provide a channel state information reporting and configuration method and device, the method comprising: a terminal device receiving a CSI reporting configuration from a network device, the CSI reporting configuration comprising L sub-configurations; the terminal device receiving indication information from the network device, the indication information being used to at least indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations; and the terminal device reporting or discarding a CSI report according to a CSI reference resource and the N sub-configurations that are indicated and / or triggered and / or activated.

Description

Channel state information reporting and configuration method and device Technical Field

[0001] The embodiments of the present application relate to the field of communication technologies. Background Art

[0002] As a crucial component of new global infrastructure development, 5G communication networks have experienced rapid global development in recent years. As network scale continues to grow, operators' energy consumption continues to rise. According to data released by China's Ministry of Industry and Information Technology, energy consumption will increase by approximately 80% between 2015 and 2022. With the deployment of 5G and the widespread commercialization of 5G active antenna units (AAUs), energy consumption will increase exponentially compared to the remote radio units (RRUs) used in 3G and 4G networks due to their higher power consumption. 5G defines three major service types: enhanced mobile broadband (eMBB), massive machine type of communication (mMTC), and ultra-reliable low-latency communication (URLLC). This will lead to an increase in bursty small packet traffic and 24 / 7 base station operation. The average daily energy consumption of 5G sites will be more than double that of 4G.

[0003] In the 5G era, 3GPP has introduced key technologies such as Massive MIMO and increased RF bandwidth. 5G supports higher data rates and greater data traffic, requiring more transmission bandwidth. High-frequency bands will be the primary frequency band for future 5G expansion. However, the transmission characteristics of high-frequency bands limit site coverage, leading to denser deployment of 5G sites. The increased energy consumption will also place significant pressure on operators' operating costs. Therefore, network energy conservation is crucial for reducing operating costs, and energy conservation in 5G networks is a pressing issue.

[0004] To achieve energy conservation, network devices can implement energy conservation in the time, frequency, spatial, and / or energy domains, depending on network load. For example, in the spatial and energy domains, network devices can power down some antennas when the load is low. In the time domain, network devices can implement cell-level discontinuous transmission / reception technology, which prevents network devices from transmitting and / or receiving signals during certain sleep periods.

[0005] It should be noted that the above introduction to the technical background is merely intended to provide a clear and complete description of the technical solutions of this application and facilitate understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art.

[0006] Summary of the Invention

[0007] The inventors discovered that network devices can reduce energy consumption by using various energy-saving technologies, but existing protocols may not fully apply to network energy-saving scenarios. For example, in the prior art, to obtain the CSI measurement resources required to calculate the Channel State Information (CSI), the CSI is reported if at least one Channel State Information Reference Signal (CSI-RS) resource set is received no later than the CSI reference resource. Otherwise, the CSI report is discarded.

[0008] However, in some wireless communication application scenarios (such as energy-saving mode), even if there is only one CSI-RS resource set and some CSI-RS resources are later than the CSI reference resource, it is possible to obtain all the CSI measurement resources required for CSI calculation and thus CSI reporting. Therefore, in network energy-saving scenarios, how to discard CSI reports based on CSI reference resources is an urgent problem that needs to be solved.

[0009] To address at least one of the above problems, an embodiment of the present application provides a method and apparatus for reporting and configuring channel state information.

[0010] According to one aspect of an embodiment of the present application, a channel state information (CSI) reporting method is provided, including:

[0011] The terminal device receives a CSI reporting configuration from the network device, where the CSI reporting configuration includes L sub-configurations;

[0012] The terminal device receives indication information from the network device, where the indication information is at least used to indicate and / or trigger and / or activate N sub-configurations in the L sub-configurations; and

[0013] The terminal device reports or discards the CSI report according to the CSI reference resource and the N sub-configurations that are indicated and / or triggered and / or activated.

[0014] According to another aspect of an embodiment of the present application, a channel state information (CSI) reporting device is provided, including:

[0015] a receiving unit configured to receive a CSI reporting configuration from a network device, the CSI reporting configuration including L sub-configurations; receive indication information from the network device, the indication information being used to at least indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations; and

[0016] A processing unit reports or discards a CSI report according to a CSI reference resource and N sub-configurations that are indicated and / or triggered and / or activated.

[0017] According to another aspect of an embodiment of the present application, a channel state information (CSI) configuration method is provided, including:

[0018] The network device sends a CSI reporting configuration to the terminal device, where the CSI reporting configuration includes L sub-configurations; and

[0019] The network device sends indication information to the terminal device, where the indication information is at least used to indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations; wherein the terminal device reports or discards the CSI report based on the CSI reference resource and the N sub-configurations that are indicated and / or triggered and / or activated.

[0020] According to another aspect of an embodiment of the present application, a channel state information (CSI) configuration device is provided, including:

[0021] A first sending unit, configured to send a CSI reporting configuration to a terminal device, where the CSI reporting configuration includes L sub-configurations; and

[0022] A second sending unit sends indication information to the terminal device, where the indication information is at least used to indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations; wherein the terminal device reports or discards the CSI report based on the CSI reference resource and the N sub-configurations that are indicated and / or triggered and / or activated.

[0023] According to another aspect of an embodiment of the present application, a communication system is provided, including:

[0024] A network device, configured to send a CSI reporting configuration to a terminal device, the CSI reporting configuration including L sub-configurations; and send indication information to the terminal device, the indication information being used to at least indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations; and

[0025] A terminal device reports or discards a CSI report according to a CSI reference resource and N sub-configurations that are indicated and / or triggered and / or activated.

[0026] One of the beneficial effects of the embodiments of the present application is that CSI reporting can be performed even when there is only one CSI-RS resource set and some CSI-RS resources are later than the CSI reference resources. This can reduce the discard rate of CSI reports in some scenarios of wireless communication applications (such as energy-saving mode) and improve the overall network performance.

[0027] With reference to the following description and accompanying drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be employed. It should be understood that the embodiments of the present application are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present application include many variations, modifications and equivalents.

[0028] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0029] It should be emphasized that the term "include / comprising" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The elements and features described in one figure or one embodiment of the present application can be combined with the elements and features shown in one or more other figures or embodiments. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one embodiment.

[0031] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application;

[0032] FIG2 is a schematic diagram of a CSI reporting time slot and a CSI reference resource according to an embodiment of the present application;

[0033] FIG3 is an example diagram of periodic measurement resources according to an embodiment of the present application;

[0034] FIG4 is a schematic diagram of a CSI reporting method according to an embodiment of the present application;

[0035] FIG5 is an example diagram of a time slot for CSI reporting according to an embodiment of the present application;

[0036] FIG6 is another example diagram of a time slot for CSI reporting according to an embodiment of the present application;

[0037] FIG7 is a schematic diagram of a CSI configuration method according to an embodiment of the present application;

[0038] FIG8 is a schematic diagram of a CSI reporting device according to an embodiment of the present application;

[0039] FIG9 is a schematic diagram of a CSI configuration device according to an embodiment of the present application;

[0040] FIG10 is a schematic diagram of a network device according to an embodiment of the present application;

[0041] FIG11 is a schematic diagram of a terminal device according to an embodiment of the present application. DETAILED DESCRIPTION

[0042] The above and other features of the present application will become apparent through the following description with reference to the accompanying drawings. In the description and the accompanying drawings, specific embodiments of the present application are disclosed in detail, which illustrate some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents that fall within the scope of the appended claims.

[0043] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements from the name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0044] In the embodiments of this application, the singular forms "a," "the," etc. include plural forms and should be broadly understood to mean "a" or "a type" rather than being limited to "one." Furthermore, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. Furthermore, the term "according to" should be understood to mean "at least in part based on...", and the term "based on" should be understood to mean "at least in part based on...", unless the context clearly indicates otherwise.

[0045] In the embodiments of the present application, the term "communication network" or "wireless communication network" may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), enhanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0046] Furthermore, communication between devices in the communication system may be carried out according to communication protocols of any stage, for example, including but 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 communication protocols currently known or to be developed in the future.

[0047] In the embodiments of the present application, the term "network device" refers to, for example, a device in a communication system that connects a terminal device to the communication network and provides services to the terminal device. Network devices may include, but are 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.

[0048] Among them, base stations may include but are not limited to: NodeB (NodeB or NB), evolved NodeB (eNodeB or eNB) and 5G base station (gNB), IAB host, etc., and may also include remote radio head (RRH, Remote Radio Head), remote radio unit (RRU, Remote Radio Unit), relay (relay) or low-power node (such as femeto, pico, etc.). The term "base station" can include some or all of their functions. Each base station can provide communication coverage for a specific geographical 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.

[0049] In the embodiments of the present application, the term "user equipment" (UE) or "terminal equipment" (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services. A terminal device can be fixed or mobile and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, and so on.

[0050] Among them, terminal devices may include but are not limited to the following devices: cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smart phones, smart watches, digital cameras, etc.

[0051] For another example, in scenarios such as the Internet of Things (IoT), the terminal device can also be a machine or device for monitoring or measurement, including but not limited to: machine type communication (MTC) terminal, vehicle-mounted communication terminal, device-to-device (D2D) terminal, machine-to-machine (M2M) terminal, and so on.

[0052] In addition, the term "network side" or "network device side" refers to one side of the network, which can be a base station or one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the user or terminal side, which can be a UE or one or more terminal devices as described above. Unless otherwise specified herein, "device" can refer to either network equipment or terminal equipment.

[0053] The following describes the scenarios of the embodiments of the present application through examples, but the present application is not limited thereto.

[0054] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a situation using a terminal device and a network device as an example. As shown in FIG1 , a communication system 100 may include a network device 101 and terminal devices 102 and 103. For simplicity, FIG1 illustrates only two terminal devices and one network device as an example, but the embodiments of the present application are not limited thereto.

[0055] In the embodiment of the present application, existing services or future services can be transmitted between the network device 101 and the terminal devices 102 and 103. For example, these services may include but are not limited to: enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.

[0056] It is worth noting that FIG1 shows that both terminal devices 102 and 103 are within the coverage range of network device 101, but the present application is not limited thereto. Both terminal devices 102 and 103 may not be within the coverage range of network device 101, or one terminal device 102 may be within the coverage range of network device 101 while the other terminal device 103 is outside the coverage range of network device 101.

[0057] In mobile communication systems, terminal devices typically measure channel state information (CSI) based on instructions and configurations from network devices and then report the measured CSI to the network devices. When scheduling a terminal device, the network device can refer to this CSI to schedule the terminal device for transmission using the appropriate resources and transmission method. Different terminal devices may experience different physical channel conditions. Using a CSI feedback mechanism can effectively utilize resources, thereby improving overall network transmission efficiency.

[0058] In the NR CSI feedback mechanism, the terminal device measures and reports the reference signal based on the CSI configuration. CSI may include Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), Channel State Information Reference Signal Resource Indicator (CSI-RS Resource Indicator, CRI), Synchronization Signal / Physical Broadcast Channel (SS / PBCH) Resource Indicator (SSBRI), Layer Indicator (LI), and Rank Indication (RI).

[0059] In the NR CSI reporting framework, CSI reporting is performed by associating CSI reports with CSI resources. CSI reporting can be configured into the following three types: periodic CSI (P-CSI) reporting: transmitted only on the Physical Uplink Control Channel (PUCCH); semi-persistent CSI (SP-CSI) reporting: transmitted on the PUCCH or Physical Uplink Shared Channel (PUSCH); and aperiodic CSI (AP-CSI) reporting: transmitted only on the PUSCH.

[0060] The following is an example of a CSI reference resource. A CSI reference resource can be a time-frequency resource. In the time domain, a CSI reference resource is a time slot; in the frequency domain, a CSI reference resource is the CSI measurement granularity. For example, when the CSI measurement granularity is subband, the size of the CSI reference resource in the frequency domain is subband. For another example, when the CSI measurement granularity is wideband, the size of the CSI reference resource in the frequency domain is wideband.

[0061] CSI reference resources are related to CSI reporting. Each CSI reporting moment corresponds to a CSI reference resource. For example, for periodic CSI (P-CSI) reporting, each reporting moment corresponds to a CSI reference resource. Assuming that the time slot where the CSI reporting is located is n, the time domain location of the CSI reference resource is n-nCSI_ref. The CSI reference resource is a downlink resource, so it is a downlink time slot. Therefore, the calculation formula for the reporting time slot n corresponding to the CSI reporting moment n' is as follows:

[0062] Among them, μ DL and μ UL It can be seen that the reporting time slot n corresponding to the CSI reporting time n' is calculated based on the uplink and downlink subcarrier spacing.

[0063] For P-CSI and SP-CSI reporting, if the P-CSI / SP-CSI report corresponds to only one measurement resource, nCSI_ref must meet the following conditions: nCSI_ref is greater than or equal to 4; nCSI_ref is the minimum value that makes the CSI reference resource the valid downlink timeslot. The measurement resource is the measurement resource configured for the current CSI report, for example, it can be CSI-RS or SSB.

[0064] Figure 2 is a schematic diagram of the time slot for CSI reporting and the CSI reference resource. DL =μ UL=15kHz. Based on the above conditions, nCSI_ref = 4, and the time domain location of the CSI reference resource is n-4, which is marked as time slot A in Figure 2. At this point, it is necessary to determine whether time slot A is a valid downlink time slot. If time slot A is a valid downlink time slot, time slot A is the CSI reference resource. If time slot A is not a valid downlink time slot, nCSI_ref = 5, and the time domain location of the CSI reference resource is n-5, which is marked as time slot A-1 in Figure 2. Next, determine whether time slot A-1 is a valid downlink time slot. If so, time slot A-1 is the CSI reference resource. If not, nCSI_ref = 6, and the determination continues until a valid downlink time slot is found.

[0065] If the P-CSI / SP-CSI report corresponds to more than one measurement resource, nCSI_ref must meet the following conditions: nCSI_ref is greater than or equal to 5; nCSI_ref is the minimum value that makes the CSI reference resource a valid downlink time slot. For details on how to determine the CSI reference resource, please refer to the previous content.

[0066] For AP-CSI reporting, if the DCI that triggers AP-CSI and the location of the AP-CSI report are in the same time slot, the CSI reference resource is the time slot where the DCI that triggers the CSI report is located; otherwise, nCSI_ref needs to meet the following conditions: nCSI_ref is greater than or equal to nCSI_ref makes the CSI reference resource the minimum value of the valid downlink time slot. Wherein, Z′ is a variable related to processing delay, and its unit is symbol. For details, please refer to the existing technology. Indicates the number of symbols contained in a slot.

[0067] A valid downlink timeslot needs to meet the following conditions: the timeslot includes at least one downlink or flexible symbol configured by higher layer signaling; and the timeslot is not within a configured measurement gap.

[0068] CSI reference resources can be used to calculate CQI. Channel measurement is essentially dependent on the UE's implementation. For example, for some high-capability UEs, a modulation and coding scheme (MCS) can achieve the target block error rate (BLER) requirement when the signal-to-interference plus noise ratio (SINR) is 10dB. For another example, for some low-capability UEs, a SINR of 12dB is required to achieve the target BLER requirement. Therefore, although two UEs with different capabilities measure the same SINR of 10dB, they will report different values ​​when feeding back CQI.

[0069] Furthermore, even for the same UE, different Transport Block Sizes (TBS) can result in different BLERs. For example, if SINR = 10dB, and the current TBS is 1000 bits, selecting a specific MCS for transmission results in a BLER of 0.01. However, if the current TBS is 500 bits, selecting the same MCS for transmission results in a BLER of 0.1.

[0070] Therefore, CSI reference resources are required when quantizing CQI. Assume that the UE uses CSI-RS for channel measurement to obtain channel conditions, such as SINR. Assume that a downlink data packet is transmitted on the CSI reference resource, and the corresponding channel conditions are measured using CSI-RS. In this case, the UE selects a CQI from the CQI table that ensures that the BLER of the hypothetical downlink data packet transmitted under the measured channel conditions is less than the target BLER. The target BLER is configured by the gNB.

[0071] CSI reference resources can also be used to determine measurement resources. Network devices can configure periodic measurement resources for terminal devices. Figure 3 shows an example of periodic measurement resources. In Figure 3, the shorter columns represent five periodic measurement resources, though this number can be any other, as this application does not impose a limitation. Arrows indicate CSI reporting. The specific measurement resource to be used is determined by the CSI reference resources.

[0072] Currently, the measurement resource corresponding to the CSI reporting must be located before the CSI reference resource. Only measurement resources before the CSI reference resource can be used for CSI measurement. In Figure 3, for example, the taller bars represent the CSI reference resource. There are two measurement resources before the CSI reference resource, as indicated by the dashed boxes. Network devices can be further configured through higher-layer signaling to determine which measurement resource before the CSI reference resource to use for measurement. For example, it can be configured to use only a specific resource for measurement, or to use all resources before the CSI reference resource.

[0073] The reason for using resources before the CSI reference resource for measurement is, on the one hand, that the gNB needs to know which measurement resource or resources the UE is using for measurement. On the other hand, it ensures the UE's performance. Specifically, only when the UE uses resources before the CSI reference resource for CSI measurement can it ensure sufficient time for measurement processing and CSI reporting.

[0074] In the following description, if no confusion is caused, the terms "PUCCH" and "physical uplink control channel" or "uplink control information" may be interchanged, and the terms "PUSCH" and "physical uplink data channel" or "uplink data" may be interchanged.

[0075] In addition, transmitting or receiving PUCCH can be understood as transmitting or receiving uplink control information carried by PUCCH; transmitting or receiving PUSCH can be understood as transmitting or receiving uplink data carried by PUSCH. In the embodiments of the present application, the terms "indication", "activation" and "trigger" can be used interchangeably, or a combination of the two or more can be used.

[0076] Embodiments of the first aspect

[0077] The embodiment of the present application provides a channel state information (CSI) reporting method. FIG4 is a schematic diagram of the CSI reporting method of the embodiment of the present application. As shown in FIG4, the method includes:

[0078] 401. The terminal device receives a CSI reporting configuration from a network device, where the CSI reporting configuration includes L sub-configurations.

[0079] 402. The terminal device receives indication information from a network device, where the indication information is at least used to indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations; and

[0080] 403. The terminal device reports or discards the CSI report according to the CSI reference resource and the N sub-configurations that are indicated and / or triggered and / or activated.

[0081] It is worth noting that FIG4 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG4 above.

[0082] In some embodiments, a CSI reporting configuration includes one or more sub-configurations. For example, a CSI reporting configuration may include L sub-configurations, each of which corresponds to a spatial / energy domain adjustment mode and a CSI result. If L in the CSI reporting configuration is greater than 1, each sub-configuration includes identification information or indication parameters. L and N are both positive integers, and L is greater than or equal to N.

[0083] In some embodiments, one of the L sub-configurations includes port subset indication information or CSI-RS list information; when the sub-configuration includes the CSI-RS list information, the sub-configuration corresponds to at least one CSI-RS.

[0084] For example, one of the L subconfigurations includes at least one subconfiguration index / ID for representing the subconfiguration. L subconfigurations correspond to multiple subconfiguration indexes / IDs. This application is not limited to this. For example, the CSI reporting configuration includes 4 subconfigurations, and the CSI reporting configuration is associated with a CSI-RS resource set, and the resource set includes 8 CSI-RS resources. In the CSI reporting configuration, subconfiguration 0 corresponds to a CSI-RS resource ID list, namely CSI-RS resource0 and CSI-RS resource1, subconfiguration 1 corresponds to a CSI-RS resource ID list, namely CSI-RS resource2 and CSI-RS resource3, subconfiguration 2 corresponds to a CSI-RS resource ID list, namely CSI-RS resource4 and CSI-RS resource5, and subconfiguration 3 corresponds to a CSI-RS resource ID list, namely CSI-RS resource6 and CSI-RS resource7.

[0085] In some embodiments, the CSI reference resource is determined at least according to the time slot in which the CSI is reported. For example, reference may be made to FIG2 for details on how to determine the CSI reference resource.

[0086] In some embodiments, the L sub-configurations are used for semi-persistent CSI reporting or aperiodic CSI reporting.

[0087] In some embodiments, the terminal device reports or discards the CSI report according to the CSI reference resource and the indicated and / or triggered and / or activated N sub-configurations, including:

[0088] The terminal device reports a CSI report if the CSI-RS resources of the N sub-configurations that are indicated and / or triggered and / or activated are no later than the CSI reference resource, and the CSI report corresponds to the N sub-configurations;

[0089] The terminal device drops the CSI report corresponding to the N sub-configurations when at least one CSI-RS resource of the N sub-configurations that are indicated and / or triggered and / or activated is later than the CSI reference resource.

[0090] FIG5 is an example diagram of a time slot for CSI reporting according to an embodiment of the present application.

[0091] For example, as shown in Figure 5, the CSI-RS resource #1 corresponding to subconfiguration 1 is no later than the CSI reference resource, and the subconfiguration 1 is indicated and / or triggered and / or activated. The CSI-RS resource #2 corresponding to subconfiguration 2 is later than the CSI reference resource, and the subconfiguration 2 is not indicated and / or triggered and / or activated. Since the CSI reporting configuration only activates subconfiguration 1, the CSI report only includes the CSI result corresponding to subconfiguration 1 and does not include the CSI result corresponding to subconfiguration 2. The CSI-RS resource #1 corresponding to subconfiguration 1 is no later than the CSI reference resource, and the terminal device can generate the CSI report within the specified time, so the terminal device can report the CSI report.

[0092] FIG6 is another example diagram of the time slot for CSI reporting according to an embodiment of the present application.

[0093] For another example, as shown in Figure 6, the CSI-RS resource #1 corresponding to subconfiguration 1 is no later than the CSI reference resource, and the CSI-RS resource #2 corresponding to subconfiguration 2 is later than the CSI reference resource. Both subconfiguration 1 and subconfiguration 2 are indicated and / or triggered and / or activated. Because the CSI reporting configuration activates subconfiguration 1 and subconfiguration 2, the CSI report includes the CSI result corresponding to subconfiguration 1 and the CSI result corresponding to subconfiguration 2. However, the terminal device can only generate a CSI report corresponding to subconfiguration 1 within the specified time and cannot generate a CSI report corresponding to subconfiguration 2. Therefore, the terminal cannot generate a complete CSI report within the specified time, and the terminal device can discard the CSI report.

[0094] In some embodiments, the terminal device reports or discards the CSI report based on the CSI reference resource and the N sub-configurations that are indicated and / or triggered and / or activated, including: the terminal device reports the CSI report after receiving at least one CSI-RS transmission opportunity (occasion) associated with all triggered sub-configurations for channel measurement and / or at least one CSI-RS and / or CSI-IM transmission opportunity associated with all triggered sub-configurations for interference measurement no later than the CSI reference resource; otherwise, the CSI report is discarded.

[0095] In some embodiments, the terminal device reports or discards the CSI report based on the CSI reference resource and the N sub-configurations that are indicated and / or triggered and / or activated, including: after the channel state information reporting configuration (reconfiguration) or service cell activation or BWP change or SP-CSI activation, the terminal device reports the CSI report only after receiving at least one CSI-RS transmission opportunity (occasion) associated with all triggered sub-configurations for channel measurement and / or at least one CSI-RS and / or CSI-IM transmission opportunity associated with all triggered sub-configurations for interference measurement no later than the CSI reference resource; otherwise, the CSI report is discarded.

[0096] Table 1

[0097] Table 1 exemplarily shows the relevant description of CSI reporting in an embodiment of the present application, but the present application is not limited thereto.

[0098] In some embodiments, the terminal device reports or discards the CSI report based on the CSI reference resource and the N sub-configurations that are indicated and / or triggered and / or activated, including: the terminal device reports the CSI report after receiving a CSI-RS transmission opportunity (occasion) of each CSI-RS resource (resource) in at least one CSI-RS resource set (resource set) associated with all triggered sub-configurations for channel measurement and / or at least one CSI-RS and / or CSI-IM transmission opportunity of each CSI-RS / CSI-IM resource (resource) in a CSI-RS / CSI-IM resource set (resource set) associated with all triggered sub-configurations for interference measurement no later than the CSI reference resource; otherwise, the CSI report is discarded.

[0099] In some embodiments, the terminal device reports or discards the CSI report based on the CSI reference resource and the N sub-configurations that are indicated and / or triggered and / or activated, including: after the channel state information reporting configuration (reconfiguration) or service cell activation or BWP change or SP-CSI activation, the terminal device reports the CSI report only after receiving at least one CSI-RS transmission opportunity (occasion) for each CSI-RS resource (resource) in the CSI-RS resource set (resource set) associated with all triggered sub-configurations for channel measurement and / or at least one CSI-RS and / or CSI-IM transmission opportunity for each CSI-RS / CSI-IM resource (resource) in the CSI-RS / CSI-IM resource set (resource set) associated with all triggered sub-configurations for interference measurement no later than the CSI reference resource; otherwise, the CSI report is discarded.

[0100] Table 2

[0101] Table 2 exemplarily shows the relevant description of CSI reporting in an embodiment of the present application, but the present application is not limited thereto.

[0102] The above is a schematic description of the CSI reporting of the embodiment of the present application. The following further describes the CSI reporting configuration.

[0103] In some embodiments, the reporting amount 'cri-RSRP-Index' and / or 'none' in the CSI reporting configuration is not used for network energy saving.

[0104] In some embodiments, the CSI reporting configuration includes a sub-configuration list and is provided by a higher-layer parameter csi-ReportSubConfigList, and the terminal device does not expect the higher-layer parameter reportQuantity to be set to 'cri-RSRP-Index' and / or 'none'.

[0105] Table 3

[0106] Table 3 exemplarily shows the relevant description of the CSI reporting configuration in an embodiment of the present application, but the present application is not limited thereto.

[0107] In some embodiments, the CSI reporting configuration includes a sub-configuration list and is provided by the higher-layer parameter csi-ReportSubConfigList, and the terminal device does not expect the higher-layer parameter reportQuantity to be set to 'cri-RSRP', 'cri-SINR', 'cri-SINR-Index', 'cri-RSRP-Index', or 'none'.

[0108] Table 4

[0109] Table 4 exemplarily shows the relevant description of the CSI reporting configuration in an embodiment of the present application, but the present application is not limited thereto.

[0110] Therefore, by limiting the high-level parameter reportQuantity, the discard rate of CSI reports in network energy-saving scenarios can be reduced.

[0111] In some embodiments, 'Trs-info' and / or 'repetition' configured in the CSI-RS resource set (CSI-RS-ResourceSet) associated with the CSI reporting configuration are not used for network energy saving.

[0112] In some embodiments, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device does not expect the non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) associated with the CSI reporting configuration to be configured with the higher layer parameters 'Trs-info' and / or 'repetition'.

[0113] Table 5

[0114] Table 5 exemplarily shows the relevant description of the CSI reporting configuration in an embodiment of the present application, but the present application is not limited thereto.

[0115] In some embodiments, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device expects that the non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) associated with the CSI reporting configuration is not configured with the higher-layer parameters 'Trs-info' and / or 'repetition'.

[0116] Table 6

[0117] Table 6 exemplarily shows the relevant description of the CSI reporting configuration in an embodiment of the present application, but the present application is not limited thereto.

[0118] In some embodiments, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device in RRC connected mode does not expect to receive a high-level UE-specific configuration non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet), wherein the non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) is configured with high-level parameters 'Trs-info' and / or 'repetition'.

[0119] Table 7

[0120] Table 7 exemplarily shows the relevant description of the CSI reporting configuration in an embodiment of the present application, but the present application is not limited thereto.

[0121] In some embodiments, the terminal device does not expect to be configured with a CSI reporting configuration (CSI-ReportConfig) linked to a CSI resource configuration (CSI-ResourceConfig), wherein the CSI resource configuration (CSI-ResourceConfig) includes a non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) configured with higher-layer parameters 'Trs-info' and / or 'repetition', and the CSI reporting configuration (CSI-ReportConfig) is configured with a sub-configuration list.

[0122] Table 8

[0123] Table 8 exemplarily shows the relevant description of the CSI reporting configuration in an embodiment of the present application, but the present application is not limited thereto.

[0124] In some embodiments, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device does not expect to be configured with a non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) configured with higher layer parameters 'Trs-info' and / or 'repetition'.

[0125] Table 9

[0126] Table 9 exemplarily shows the relevant description of the CSI reporting configuration in an embodiment of the present application, but the present application is not limited thereto.

[0127] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0128] It can be seen from the above embodiments that CSI reporting can be performed even when there is only one CSI-RS resource set and some CSI-RS resources are later than the CSI reference resources. This can reduce the discard rate of CSI reports in some scenarios of wireless communication applications (such as energy-saving mode) and improve the overall network performance.

[0129] Embodiments of the second aspect

[0130] The embodiment of the present application provides a channel state information (CSI) configuration method, which is described from the perspective of a network device. The embodiment of the second aspect can be combined with the embodiment of the first aspect, and the same contents as the embodiment of the first aspect will not be repeated.

[0131] FIG7 is a schematic diagram of a channel state information (CSI) configuration method according to an embodiment of the present application. As shown in FIG7 , the method includes:

[0132] 701. The network device sends a CSI reporting configuration to the terminal device. The CSI reporting configuration includes L sub-configurations.

[0133] 702. The network device sends indication information to the terminal device, where the indication information is at least used to indicate and / or trigger and / or activate N sub-configurations among the L sub-configurations; wherein the terminal device reports or discards the CSI report based on the CSI reference resource and the N sub-configurations that are indicated and / or triggered and / or activated.

[0134] It is worth noting that FIG7 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG7 above.

[0135] In some embodiments, one of the L sub-configurations includes port subset indication information or CSI-RS list information; when the sub-configuration includes the CSI-RS list information, the sub-configuration corresponds to at least one CSI-RS.

[0136] In some embodiments, the CSI reference resource is determined at least according to a time slot of the CSI reporting; and the L sub-configurations are used for semi-persistent CSI reporting or aperiodic CSI reporting.

[0137] In some embodiments, the reporting amount 'cri-RSRP-Index' and / or 'none' in the CSI reporting configuration is not used for network energy saving.

[0138] In some embodiments, the CSI reporting configuration includes a sub-configuration list and is provided by a higher-layer parameter csi-ReportSubConfigList, and the terminal device does not expect the higher-layer parameter reportQuantity to be set to 'cri-RSRP-Index' and / or 'none'.

[0139] In some embodiments, the CSI reporting configuration includes a sub-configuration list and is provided by the high-level parameter csi-ReportSubConfigList, and the terminal device does not expect the high-level parameter reportQuantity to be set to 'cri-RSRP', 'cri-SINR', 'cri-SINR-Index', 'cri-RSRP-Index', or 'none'.

[0140] In some embodiments, 'Trs-info' and / or 'repetition' configured in the CSI-RS resource set (CSI-RS-ResourceSet) associated with the CSI reporting configuration are not used for network energy saving.

[0141] In some embodiments, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device does not expect the non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) associated with the CSI reporting configuration to be configured with the higher layer parameters 'Trs-info' and / or 'repetition';

[0142] Alternatively, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device expects that the non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) associated with the CSI reporting configuration is not configured with the higher-layer parameters 'Trs-info' and / or 'repetition';

[0143] Alternatively, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device in RRC connected mode does not expect to receive a higher-layer UE-specific configuration non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet), where the non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) is configured with higher-layer parameters 'Trs-info' and / or 'repetition';

[0144] Alternatively, the terminal device does not expect to be configured with a CSI reporting configuration (CSI-ReportConfig) linked to a CSI resource configuration (CSI-ResourceConfig), where the CSI resource configuration (CSI-ResourceConfig) contains a non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) configured with higher layer parameters 'Trs-info' and / or 'repetition', and the CSI reporting configuration (CSI-ReportConfig) is configured with a sub-configuration list;

[0145] Alternatively, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device does not expect to be configured with a non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) configured with higher layer parameters 'Trs-info' and / or 'repetition'.

[0146] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0147] It can be seen from the above embodiments that CSI reporting can be performed even when there is only one CSI-RS resource set and some CSI-RS resources are later than the CSI reference resources. This can reduce the discard rate of CSI reports in some scenarios of wireless communication applications (such as energy-saving mode) and improve the overall network performance.

[0148] Embodiments of the third aspect

[0149] The embodiment of the present application provides a channel state information (CSI) reporting device. The device may be, for example, a terminal device, or one or more components or assemblies configured in the terminal device, and the contents that are the same as those in the embodiment of the first aspect are not repeated here.

[0150] FIG8 is a schematic diagram of a channel state information (CSI) reporting device according to an embodiment of the present application. As shown in FIG8 , the channel state information (CSI) reporting device 800 includes:

[0151] A receiving unit 801 is configured to receive a CSI reporting configuration from a network device, the CSI reporting configuration including L sub-configurations; and receive indication information from the network device, the indication information being used to at least indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations;

[0152] The processing unit 802 reports or discards the CSI report according to the CSI reference resource and the N sub-configurations that are indicated and / or triggered and / or activated.

[0153] In some embodiments, one of the L sub-configurations includes port subset indication information or CSI-RS list information; when the sub-configuration includes the CSI-RS list information, the sub-configuration corresponds to at least one CSI-RS.

[0154] In some embodiments, the CSI reference resource is determined at least according to a time slot of the CSI reporting; and the L sub-configurations are used for semi-persistent CSI reporting or aperiodic CSI reporting.

[0155] In some embodiments, the processing unit 802 reports a CSI report if the CSI-RS resources of the N sub-configurations that are indicated and / or triggered and / or activated are no later than the CSI reference resource, and the CSI report corresponds to the N sub-configurations;

[0156] If at least one CSI-RS resource of the indicated and / or triggered and / or activated N sub-configurations is later than the CSI reference resource, a CSI report corresponding to the N sub-configurations is dropped.

[0157] In some embodiments, the processing unit 802 reports the CSI report after receiving at least one CSI-RS transmission opportunity (occasion) associated with the triggered sub-configuration for channel measurement and / or at least one CSI-RS and / or CSI-IM transmission opportunity associated with the triggered sub-configuration for interference measurement no later than the CSI reference resource; otherwise, the CSI report is discarded.

[0158] In some embodiments, after the channel state information reporting configuration (reconfiguration) or service cell activation or BWP change or SP-CSI activation, the processing unit 802 reports the CSI report only after receiving at least one CSI-RS transmission opportunity (occasion) associated with the triggered sub-configuration for channel measurement and / or at least one CSI-RS and / or CSI-IM transmission opportunity associated with the triggered sub-configuration for interference measurement no later than the CSI reference resource; otherwise, the CSI report is discarded.

[0159] In some embodiments, the processing unit 802 reports the CSI report upon receiving a CSI-RS transmission opportunity (occasion) of each CSI-RS resource (resource) in at least one CSI-RS resource set (resource set) associated with all triggered sub-configurations for channel measurement and / or a CSI-RS and / or CSI-IM transmission opportunity of each CSI-RS / CSI-IM resource (resource) in at least one CSI-RS / CSI-IM resource set (resource set) associated with all triggered sub-configurations for interference measurement no later than the CSI reference resource; otherwise, the CSI report is discarded.

[0160] In some embodiments, after the channel state information reporting configuration (reconfiguration) or service cell activation or BWP change or SP-CSI activation, the processing unit 802 reports the CSI report only after receiving a CSI-RS transmission opportunity (occasion) of each CSI-RS resource (resource) in at least one CSI-RS resource set (resource set) associated with all triggered sub-configurations for channel measurement and / or a CSI-RS and / or CSI-IM transmission opportunity of each CSI-RS / CSI-IM resource (resource) in at least one CSI-RS / CSI-IM resource set (resource set) associated with all triggered sub-configurations for interference measurement no later than the CSI reference resource; otherwise, the CSI report is discarded.

[0161] In some embodiments, the reporting amount 'cri-RSRP-Index' and / or 'none' in the CSI reporting configuration is not used for network energy saving.

[0162] In some embodiments, the CSI reporting configuration includes a sub-configuration list and is provided by a higher-layer parameter csi-ReportSubConfigList, and the terminal device does not expect the higher-layer parameter reportQuantity to be set to 'cri-RSRP-Index' and / or 'none'.

[0163] In some embodiments, the CSI reporting configuration includes a sub-configuration list and is provided by the high-level parameter csi-ReportSubConfigList, and the terminal device does not expect the high-level parameter reportQuantity to be set to 'cri-RSRP', 'cri-SINR', 'cri-SINR-Index', 'cri-RSRP-Index', or 'none'.

[0164] In some embodiments, 'Trs-info' and / or 'repetition' configured in the CSI-RS resource set (CSI-RS-ResourceSet) associated with the CSI reporting configuration are not used for network energy saving.

[0165] In some embodiments, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device does not expect a non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) associated with the CSI reporting configuration to be configured with higher layer parameters 'Trs-info' and / or 'repetition';

[0166] Alternatively, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device expects that a non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) associated with the CSI reporting configuration is not configured with the higher-layer parameters 'Trs-info' and / or 'repetition';

[0167] Alternatively, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device in RRC connected mode does not expect to receive a higher-layer UE-specific configuration non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet), wherein the non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) is configured with higher-layer parameters 'Trs-info' and / or 'repetition';

[0168] Alternatively, the terminal device does not expect to be configured with a CSI reporting configuration (CSI-ReportConfig) linked to a CSI resource configuration (CSI-ResourceConfig), wherein the CSI resource configuration (CSI-ResourceConfig) includes a non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) configured with higher layer parameters 'Trs-info' and / or 'repetition', and the CSI reporting configuration (CSI-ReportConfig) is configured with a sub-configuration list;

[0169] Alternatively, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device does not expect to be configured with a non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) configured with higher layer parameters 'Trs-info' and / or 'repetition'.

[0170] 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 channel state information (CSI) reporting device 800 may also include other components or modules. For the specific contents of these components or modules, reference may be made to the relevant art.

[0171] In addition, for the sake of simplicity, FIG8 only illustrates the connection relationship or signal direction between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.

[0172] Through the embodiments of the present application, CSI reporting can be performed even when there is only one CSI-RS resource set and some CSI-RS resources are later than the CSI reference resources. This can reduce the discard rate of CSI reports in some scenarios of wireless communication applications (such as energy-saving mode) and improve the overall network performance.

[0173] Embodiments of the fourth aspect

[0174] The embodiment of the present application provides a channel state information (CSI) configuration device. The device can be, for example, a network device, or one or more components or assemblies configured in the network device. The contents that are the same as those in the first and second aspects of the embodiment are not repeated here.

[0175] FIG9 is a schematic diagram of a channel state information (CSI) configuration apparatus according to an embodiment of the present application. As shown in FIG9 , the channel state information (CSI) configuration apparatus 900 includes:

[0176] A first sending unit 901 sends a CSI reporting configuration to a terminal device, where the CSI reporting configuration includes L sub-configurations;

[0177] A second sending unit 902 sends indication information to the terminal device, where the indication information is at least used to indicate and / or trigger and / or activate N sub-configurations among the L sub-configurations; wherein the terminal device reports or discards the CSI report based on the CSI reference resource and the N sub-configurations that are indicated and / or triggered and / or activated.

[0178] In some embodiments, one of the L sub-configurations includes port subset indication information or CSI-RS list information; when the sub-configuration includes the CSI-RS list information, the sub-configuration corresponds to at least one CSI-RS.

[0179] In some embodiments, the CSI reference resource is determined at least according to a time slot of the CSI reporting; and the L sub-configurations are used for semi-persistent CSI reporting or aperiodic CSI reporting.

[0180] In some embodiments, the reporting amount 'cri-RSRP-Index' and / or 'none' in the CSI reporting configuration is not used for network energy saving.

[0181] In some embodiments, the CSI reporting configuration includes a sub-configuration list and is provided by a higher-layer parameter csi-ReportSubConfigList, and the terminal device does not expect the higher-layer parameter reportQuantity to be set to 'cri-RSRP-Index' and / or 'none'.

[0182] In some embodiments, the CSI reporting configuration includes a sub-configuration list and is provided by the higher-level parameter csi-ReportSubConfigList, and the terminal device does not expect the higher-level parameter reportQuantity to be set to 'cri-RSRP', 'cri-SINR', 'cri-SINR-Index', 'cri-RSRP-Index', or 'none'.

[0183] In some embodiments, 'Trs-info' and / or 'repetition' configured in the CSI-RS resource set (CSI-RS-ResourceSet) associated with the CSI reporting configuration are not used for network energy saving.

[0184] In some embodiments, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device does not expect the non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) associated with the CSI reporting configuration to be configured with the higher layer parameters 'Trs-info' and / or 'repetition';

[0185] Alternatively, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device expects that the non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) associated with the CSI reporting configuration is not configured with the higher-layer parameters 'Trs-info' and / or 'repetition';

[0186] Alternatively, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device in RRC connected mode does not expect to receive a higher-layer UE-specific configuration non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet), wherein the non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) is configured with higher-layer parameters 'Trs-info' and / or 'repetition';

[0187] Alternatively, the terminal device does not expect to be configured with a CSI reporting configuration (CSI-ReportConfig) linked to a CSI resource configuration (CSI-ResourceConfig), where the CSI resource configuration (CSI-ResourceConfig) contains a non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) configured with higher layer parameters 'Trs-info' and / or 'repetition', and the CSI reporting configuration (CSI-ReportConfig) is configured with a sub-configuration list;

[0188] Alternatively, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device does not expect to be configured with a non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) configured with higher layer parameters 'Trs-info' and / or 'repetition'.

[0189] 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 channel state information (CSI) configuration device 900 may also include other components or modules. For the specific contents of these components or modules, reference may be made to the relevant art.

[0190] In addition, for the sake of simplicity, FIG9 only illustrates the connection relationship or signal direction between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.

[0191] Through the embodiments of the present application, CSI reporting can be performed even when there is only one CSI-RS resource set and some CSI-RS resources are later than the CSI reference resources. This can reduce the discard rate of CSI reports in some scenarios of wireless communication applications (such as energy-saving mode) and improve the overall network performance.

[0192] Embodiments of the fifth aspect

[0193] An embodiment of the present application also provides a communication system, and reference may be made to FIG1 . The contents that are the same as those in the first to fourth aspects of the embodiments will not be repeated.

[0194] In some embodiments, the communication system 100 may include at least:

[0195] A network device, configured to send a CSI reporting configuration to a terminal device, the CSI reporting configuration including L sub-configurations; and send indication information to the terminal device, the indication information being used to at least indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations; and

[0196] A terminal device reports or discards a CSI report according to a CSI reference resource and N sub-configurations that are indicated and / or triggered and / or activated.

[0197] An embodiment of the present application further provides a network device, which may be, for example, a base station, but the present application is not limited thereto and may also be other network devices.

[0198] Figure 10 is a schematic diagram illustrating the structure of a network device according to an embodiment of the present application. As shown in Figure 10 , network device 1000 may include a processor 1010 (e.g., a central processing unit (CPU)) and a memory 1020; memory 1020 is coupled to processor 1010. Memory 1020 may store various data and may also store an information processing program 1030, which is executed under the control of processor 1010.

[0199] For example, the processor 1010 may be configured to execute a program to implement the channel state information configuration method as described in the embodiment of the second aspect. For example, the processor 1010 may be configured to perform the following control: sending a CSI reporting configuration to a terminal device, where the CSI reporting configuration includes L sub-configurations; and sending indication information to the terminal device, where the indication information is used to at least indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations.

[0200] In addition, as shown in FIG10 , the network device 1000 may further include: a transceiver 1040 and an antenna 1050; wherein, the functions of the above components are similar to those in the prior art and are not described in detail here. It is worth noting that the network device 1000 does not necessarily include all the components shown in FIG10 ; in addition, the network device 1000 may also include components not shown in FIG10 , and reference may be made to the prior art for details.

[0201] The embodiment of the present application also provides a terminal device, but the present application is not limited thereto and may also be other devices.

[0202] Figure 11 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in Figure 11 , terminal device 1100 may include a processor 1110 and a memory 1120. Memory 1120 stores data and programs and is coupled to processor 1110. It should be noted that this diagram is exemplary; other types of structures may be used to supplement or replace this structure to implement telecommunication or other functions.

[0203] For example, the processor 1110 may be configured to execute a program to implement the channel state information reporting method as described in the embodiment of the first aspect. For example, the processor 1110 may be configured to perform the following control: receiving a CSI reporting configuration from a network device, the CSI reporting configuration including L sub-configurations; receiving indication information from the network device, the indication information being used to at least indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations; and reporting or discarding a CSI report based on a CSI reference resource and the indicated and / or triggered and / or activated N sub-configurations.

[0204] As shown in Figure 11 , the terminal device 1100 may further include: a communication module 1130, an input unit 1140, a display 1150, and a power supply 1160. The functions of these components are similar to those in the prior art and are not described in detail here. It is worth noting that the terminal device 1100 does not necessarily include all of the components shown in Figure 11 , and these components are not essential. Furthermore, the terminal device 1100 may also include components not shown in Figure 11 , for which reference may be made to the prior art.

[0205] An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program enables the terminal device to perform the channel state information (CSI) reporting method described in the embodiment of the first aspect.

[0206] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the channel state information (CSI) reporting method described in the embodiment of the first aspect.

[0207] An embodiment of the present application also provides a computer program, wherein when the program is executed in a network device, the program enables the terminal device to execute the channel state information (CSI) configuration method described in the embodiment of the second aspect.

[0208] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a network device to execute the channel state information (CSI) configuration method described in the embodiment of the second aspect.

[0209] The above devices and methods of the present application can be implemented by hardware or by a combination of hardware and software. The present application relates to such a computer-readable program that, when executed by a logic component, enables the logic component to implement the devices or components described above, or enables the logic component to implement the various methods or steps described above. 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.

[0210] The method / device described in conjunction 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 figure and / or one or more combinations of functional block diagrams can correspond to various software modules of the computer program flow or to various hardware modules. These software modules can respectively correspond to the various steps shown in the figure. These hardware modules can be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).

[0211] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium may 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 may be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the 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 large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0212] One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may 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, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof for performing the functions described in this application. One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may 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 communication with a DSP, or any other such configuration.

[0213] The present application has been described above in conjunction with specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present application. Those skilled in the art may make various modifications and variations to the present application based on the spirit and principles of the present application, and such modifications and variations are also within the scope of the present application.

[0214] Regarding the implementation methods including the above embodiments, the following additional notes are also disclosed:

[0215] 1. A channel state information (CSI) reporting method, comprising:

[0216] The terminal device receives a CSI reporting configuration from the network device, where the CSI reporting configuration includes L sub-configurations;

[0217] The terminal device receives indication information from the network device, where the indication information is at least used to indicate and / or trigger and / or activate N sub-configurations in the L sub-configurations; and

[0218] The terminal device reports or discards the CSI report according to the CSI reference resource and the N sub-configurations that are indicated and / or triggered and / or activated.

[0219] 2. The method according to Note 1, wherein one of the L sub-configurations includes port subset indication information or CSI-RS list information; when the sub-configuration includes the CSI-RS list information, the sub-configuration corresponds to at least one CSI-RS;

[0220] The CSI reference resource is determined at least according to the time slot of the CSI reporting; the L sub-configurations are used for semi-persistent CSI reporting or aperiodic CSI reporting.

[0221] 3. The method according to Note 1, wherein the terminal device reports or discards the CSI report based on the CSI reference resource and the N sub-configurations that are indicated and / or triggered and / or activated, including:

[0222] The terminal device reports the CSI report if the CSI-RS resources of the N sub-configurations that are indicated and / or triggered and / or activated are no later than the CSI reference resource, and the CSI report corresponds to the N sub-configurations;

[0223] The terminal device drops the CSI report corresponding to the N sub-configurations when at least one CSI-RS resource of the N sub-configurations that are indicated and / or triggered and / or activated is later than the CSI reference resource.

[0224] 4. The method according to Note 1, wherein the terminal device reports or discards the CSI report based on the CSI reference resource and the N sub-configurations that are indicated and / or triggered and / or activated, including:

[0225] The terminal device reports the CSI report after receiving at least one CSI-RS transmission opportunity (occasion) associated with the triggered subconfiguration for channel measurement and / or at least one CSI-RS and / or CSI-IM transmission opportunity associated with the triggered subconfiguration for interference measurement no later than the CSI reference resource; otherwise, the CSI report is discarded;

[0226] or,

[0227] The terminal device reports the CSI report after receiving a CSI-RS transmission opportunity (occasion) of each CSI-RS resource (resource) in at least one CSI-RS resource set (resource set) associated with all triggered sub-configurations for channel measurement and / or a CSI-RS and / or CSI-IM transmission opportunity of each CSI-RS / CSI-IM resource (resource) in at least one CSI-RS / CSI-IM resource set (resource set) associated with all triggered sub-configurations for interference measurement no later than the CSI reference resource; otherwise, the CSI report is discarded.

[0228] 5. The method according to Note 1, wherein the terminal device reports or discards the CSI report according to the CSI reference resource and the N sub-configurations that are indicated and / or triggered and / or activated, comprising:

[0229] After channel state information reporting configuration (reconfiguration) or serving cell activation or BWP change or SP-CSI activation, the terminal device reports the CSI report only after receiving at least one CSI-RS transmission opportunity (occasion) associated with the triggered subconfiguration for channel measurement and / or at least one CSI-RS and / or CSI-IM transmission opportunity associated with the triggered subconfiguration for interference measurement no later than the CSI reference resource; otherwise, the CSI report is discarded;

[0230] or,

[0231] After the channel state information reporting configuration (reconfiguration) or service cell activation or BWP change or SP-CSI activation, the terminal device reports the CSI report only after receiving a CSI-RS transmission opportunity (occasion) of each CSI-RS resource (resource) in at least one CSI-RS resource set (resource set) associated with all triggered sub-configurations for channel measurement and / or at least one CSI-RS and / or CSI-IM transmission opportunity of each CSI-RS / CSI-IM resource (resource) in a CSI-RS / CSI-IM resource set (resource set) associated with all triggered sub-configurations for interference measurement no later than the CSI reference resource; otherwise, the CSI report is discarded.

[0232] 6. A channel state information (CSI) reporting method, comprising:

[0233] The terminal device receives a CSI reporting configuration from the network device, where the CSI reporting configuration includes L sub-configurations;

[0234] The terminal device receives indication information from the network device, where the indication information is at least used to indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations; wherein the reporting amount 'cri-RSRP-Index' and / or 'none' in the CSI reporting configuration is not used for network energy saving.

[0235] 7. A channel state information (CSI) reporting method, comprising:

[0236] The terminal device receives a CSI reporting configuration from the network device, where the CSI reporting configuration includes L sub-configurations;

[0237] The terminal device receives indication information from the network device, where the indication information is at least used to indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations;

[0238] The CSI reporting configuration includes a sub-configuration list and is provided by a high-level parameter csi-ReportSubConfigList, and the terminal device does not expect the high-level parameter reportQuantity to be set to 'cri-RSRP-Index' and / or 'none'.

[0239] 8. A channel state information (CSI) reporting method, comprising:

[0240] The terminal device receives a CSI reporting configuration from the network device, where the CSI reporting configuration includes L sub-configurations;

[0241] The terminal device receives indication information from the network device, where the indication information is at least used to indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations;

[0242] The CSI reporting configuration includes a sub-configuration list and is provided by the high-level parameter csi-ReportSubConfigList, and the terminal device does not expect the high-level parameter reportQuantity to be set to 'cri-RSRP', 'cri-SINR', 'cri-SINR-Index', 'cri-RSRP-Index', or 'none'.

[0243] 9. A channel state information (CSI) reporting method, comprising:

[0244] The terminal device receives a CSI reporting configuration from the network device, where the CSI reporting configuration includes L sub-configurations;

[0245] The terminal device receives indication information from the network device, where the indication information is at least used to indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations;

[0246] The 'Trs-info' and / or 'repetition' configured in the CSI-RS resource set (CSI-RS-ResourceSet) associated with the CSI reporting configuration shall not be used for network energy saving.

[0247] 10. A channel state information (CSI) reporting method, comprising:

[0248] The terminal device receives a CSI reporting configuration from the network device, where the CSI reporting configuration includes L sub-configurations;

[0249] The terminal device receives indication information from the network device, where the indication information is at least used to indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations;

[0250] The terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device does not expect a non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) associated with the CSI reporting configuration to be configured with higher-layer parameters 'Trs-info' and / or 'repetition';

[0251] Alternatively, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device expects that a non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) associated with the CSI reporting configuration is not configured with the higher-layer parameters 'Trs-info' and / or 'repetition';

[0252] Alternatively, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device in RRC connected mode does not expect to receive a higher-layer UE-specific configuration non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet), wherein the non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) is configured with higher-layer parameters 'Trs-info' and / or 'repetition';

[0253] Alternatively, the terminal device does not expect to be configured with a CSI reporting configuration (CSI-ReportConfig) linked to a CSI resource configuration (CSI-ResourceConfig), wherein the CSI resource configuration (CSI-ResourceConfig) includes a non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) configured with higher layer parameters 'Trs-info' and / or 'repetition', and the CSI reporting configuration (CSI-ReportConfig) is configured with a sub-configuration list;

[0254] Alternatively, the terminal device is configured with a CSI reporting configuration including a sub-configuration list, and the terminal device does not expect to be configured with a non-zero power CSI-RS resource set (NZP-CSI-RS-ResourceSet) configured with higher layer parameters 'Trs-info' and / or 'repetition'.

Claims

1. A channel state information reporting device, comprising: A receiving unit, which receives a channel state information reporting configuration from a network device, wherein the channel state information reporting configuration includes L sub-configurations; receives indication information from the network device, wherein the indication information is at least used to indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations; as well as A processing unit reports or discards a channel state information report according to a channel state information reference resource and the N sub-configurations that are indicated and / or triggered and / or activated.

2. The device according to claim 1, wherein: One of the L subconfigurations includes port subset indication information or CSI-RS list information; when the subconfiguration includes the CSI-RS list information, the subconfiguration corresponds to at least one CSI-RS.

3. The device according to claim 1, wherein: The channel state information reference resource is determined at least according to the time slot of the channel state information reporting; the L sub-configurations are used for semi-continuous channel state information reporting or non-periodic channel state information reporting.

4. The device according to claim 1, wherein: The processing unit reports the channel state information report when the CSI-RS resources of the N sub-configurations that are indicated and / or triggered and / or activated are no later than the channel state information reference resource, and the channel state information report corresponds to the N sub-configurations; and discards the channel state information report when at least one CSI-RS resource of the N sub-configurations that are indicated and / or triggered and / or activated is later than the channel state information reference resource, and the channel state information report corresponds to the N sub-configurations.

5. The device according to claim 1, wherein: The processing unit reports the channel state information report after receiving at least one CSI-RS transmission opportunity associated with the triggered sub-configuration for channel measurement and / or at least one CSI-RS and / or CSI-IM transmission opportunity associated with the triggered sub-configuration for interference measurement no later than the channel state information reference resource; otherwise, the channel state information report is discarded; Alternatively, the processing unit reports the channel state information report after receiving at least one CSI-RS transmission opportunity for each CSI-RS resource in the CSI-RS resource set associated with the triggered sub-configuration for channel measurement and / or at least one CSI-RS and / or CSI-IM transmission opportunity for each CSI-RS / CSI-IM resource in the CSI-RS / CSI-IM resource set associated with the triggered sub-configuration for interference measurement no later than the channel state information reference resource; otherwise, the channel state information report is discarded.

6. The device according to claim 1, wherein: The processing unit reports the channel state information report only after receiving at least one CSI-RS transmission opportunity associated with the triggered sub-configuration for channel measurement and / or at least one CSI-RS and / or CSI-IM transmission opportunity associated with the triggered sub-configuration for interference measurement no later than the channel state information reference resource after the channel state information reporting configuration (reconfiguration) or serving cell activation or BWP change or SP-CSI activation; otherwise, discards the channel state information report; Alternatively, after the channel state information reporting configuration (reconfiguration) or service cell activation or BWP change or SP-CSI activation, the processing unit reports the channel state information report only after receiving at least one CSI-RS transmission opportunity for each CSI-RS resource in the CSI-RS resource set associated with the triggered sub-configuration for channel measurement and / or at least one CSI-RS and / or CSI-IM transmission opportunity for each CSI-RS / CSI-IM resource in the CSI-RS / CSI-IM resource set associated with the triggered sub-configuration for interference measurement no later than the channel state information reference resource; otherwise, the channel state information report is discarded.

7. The device according to claim 1, wherein: The reporting amount 'cri-RSRP-Index' and / or 'none' in the channel state information reporting configuration is not used for network energy saving.

8. The device according to claim 1, wherein: The channel state information reporting configuration includes a sub-configuration list and is provided by a high-level parameter csi-ReportSubConfigList. The terminal device does not expect the high-level parameter reportQuantity to be set to 'cri-RSRP-Index' and / or 'none'.

9. The device according to claim 1, wherein: The channel state information reporting configuration includes a sub-configuration list and is provided by the high-level parameter csi-ReportSubConfigList. The terminal device does not expect the high-level parameter reportQuantity to be set to 'cri-RSRP', 'cri-SINR', 'cri-SINR-Index', 'cri-RSRP-Index', or 'none'.

10. The device according to claim 1, wherein: The 'Trs-info' and / or 'repetition' configured in the CSI-RS resource set associated with the channel state information reporting configuration is not used for network energy saving.

11. The device according to claim 1, wherein: The terminal device is configured with a channel state information reporting configuration including a sub-configuration list, and the terminal device does not expect that a non-zero power CSI-RS resource set associated with the channel state information reporting configuration is configured with a higher layer parameter 'Trs-info' and / or 'repetition'; Alternatively, the terminal device is configured with a channel state information reporting configuration including a sub-configuration list, and the terminal device expects that the non-zero power CSI-RS resource set associated with the channel state information reporting configuration is not configured with a high-level Parameters 'Trs-info' and / or 'repetition'; Alternatively, the terminal device is configured with a channel state information reporting configuration including a sub-configuration list, and the terminal device in the radio resource control connected mode does not expect to receive a high-layer UE-specific configuration non-zero power CSI-RS resource set, wherein the non-zero power CSI-RS resource set is configured with high-layer parameters 'Trs-info' and / or 'repetition'; Alternatively, the terminal device does not expect to be configured with a channel state information reporting configuration linked to a channel state information resource configuration, wherein the channel state information resource configuration comprises a set of non-zero power CSI-RS resources configured with higher layer parameters 'Trs-info' and / or 'repetition', and the channel state information reporting configuration is configured with a sub-configuration list; Alternatively, the terminal device is configured with a channel state information reporting configuration including a sub-configuration list, and the terminal device does not expect to be configured with a non-zero power CSI-RS resource set configured with higher layer parameters 'Trs-info' and / or 'repetition'.

12. A channel state information configuration device, comprising: A first sending unit, which sends a channel state information reporting configuration to a terminal device, where the channel state information reporting configuration includes L sub-configurations; as well as A second sending unit sends indication information to the terminal device, wherein the indication information is at least used to indicate and / or trigger and / or activate N sub-configurations among the L sub-configurations; wherein the terminal device reports or discards the channel state information report based on the channel state information reference resource and the N sub-configurations that are indicated and / or triggered and / or activated.

13. The device according to claim 12, wherein: One of the L subconfigurations includes port subset indication information or CSI-RS list information; when the subconfiguration includes the CSI-RS list information, the subconfiguration corresponds to at least one CSI-RS.

14. The device according to claim 12, wherein: The channel state information reference resource is determined at least according to the time slot of the channel state information reporting; the L sub-configurations are used for semi-continuous channel state information reporting or non-periodic channel state information reporting.

15. The device according to claim 12, wherein: The reporting amount 'cri-RSRP-Index' and / or 'none' in the channel state information reporting configuration is not used for network energy saving.

16. The device according to claim 12, wherein: The channel state information reporting configuration includes a sub-configuration list and is provided by a high-level parameter csi-ReportSubConfigList. The terminal device does not expect the high-level parameter reportQuantity to be set to 'cri-RSRP-Index' and / or 'none'.

17. The device according to claim 12, wherein: The channel state information reporting configuration includes a sub-configuration list and is provided by the high-level parameter csi-ReportSubConfigList. The terminal device does not expect the high-level parameter reportQuantity to be set to 'cri-RSRP', 'cri-SINR', 'cri-SINR-Index', 'cri-RSRP-Index', or 'none'.

18. The device according to claim 12, wherein: The 'Trs-info' and / or 'repetition' configured in the CSI-RS resource set associated with the channel state information reporting configuration is not used for network energy saving.

19. The device according to claim 12, wherein: The terminal device is configured with a channel state information reporting configuration including a sub-configuration list, and the terminal device does not expect that a non-zero power CSI-RS resource set associated with the channel state information reporting configuration is configured with a higher layer parameter 'Trs-info' and / or 'repetition'; Alternatively, the terminal device is configured with a channel state information reporting configuration including a sub-configuration list, and the terminal device expects that the non-zero power CSI-RS resource set associated with the channel state information reporting configuration is not configured with high-level parameters 'Trs-info' and / or 'repetition'; Alternatively, the terminal device is configured with a channel state information reporting configuration including a sub-configuration list, and the terminal device in the radio resource control connected mode does not expect to receive a high-layer UE-specific configuration non-zero power CSI-RS resource set, wherein the non-zero power CSI-RS resource set is configured with high-layer parameters 'Trs-info' and / or 'repetition'; Alternatively, the terminal device does not expect to be configured with a channel state information reporting configuration linked to a channel state information resource configuration, wherein the channel state information resource configuration comprises a set of non-zero power CSI-RS resources configured with higher layer parameters 'Trs-info' and / or 'repetition', and the channel state information reporting configuration is configured with a sub-configuration list; Alternatively, the terminal device is configured with a channel state information reporting configuration including a sub-configuration list, and the terminal device does not expect to be configured with a non-zero power CSI-RS resource set configured with higher layer parameters 'Trs-info' and / or 'repetition'.

20. A communication system comprising: A network device, which sends a channel state information reporting configuration to a terminal device, wherein the channel state information reporting configuration includes L sub-configurations; Sending indication information to the terminal device, where the indication information is at least used to indicate and / or trigger and / or activate N sub-configurations of the L sub-configurations; as well as A terminal device reports or discards a channel state information report according to a channel state information reference resource and N sub-configurations that are indicated and / or triggered and / or activated.

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