Indication method and apparatus for channel state information report configuration

Abstract

Provided in embodiments of the present application are an indication method and apparatus for a channel state information report configuration. The method comprises: receiving a channel state information report configuration from a network device, wherein the channel state information report configuration at least comprises a feedback amount of channel state information, which feedback amount is not configured to be cri-RI-CQI, and / or the channel state information report configuration does not comprise a sub-configuration list, and / or the channel state information report configuration does not comprise indication information of a no-precoding matrix indicator antenna port, and / or a sub-configuration in the sub-configuration list in the channel state information report configuration is not configured with indication information of an antenna port subset, and / or a sub-configuration in the sub-configuration list in the channel state information report configuration is configured with indication information of the antenna port subset, activated antenna ports related to the sub-configuration being related to the indication information of the no-precoding matrix indicator antenna port, and / or the sub-configuration in the sub-configuration list in the channel state information report configuration is configured with a CSI-RS resource list.

Description

Channel state information reporting configuration indication 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 growth in recent years. With the rollout of 5G and the widespread commercialization of 5G active antenna units (AAUs), energy consumption is expected to increase exponentially compared to the primary 3G and 4G remote radio units (RRUs) 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 is driving an increase in bursty small packet traffic and the 24 / 7 operation of base stations. The average daily energy consumption of 5G sites is expected to 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] In related technologies, whether uplink or downlink, signal measurement mainly involves the transmitter sending a reference signal of a known sequence, and the receiver solving the channel based on the received sequence. In the new wireless NR, the downlink channel is generally measured by the channel state information reference signal (CSI-RS), while the uplink channel is generally measured by the uplink sounding reference signal (SRS). For TDD systems, the reciprocity of the uplink and downlink channels can also be used to measure the uplink sounding reference signal to obtain the channel state information CSI of the downlink channel, that is, the network side device can calculate the precoding matrix suitable for the terminal device based on the CSI from the terminal device to the network device. The CSI-RS sent by the network device is precoded as described above, and the terminal device can obtain the equivalent channel from the network device to the terminal device based on the measurement, estimate other corresponding CSI information (such as RI and CQI), and feed it back to the network side device through the CSI report.

[0008] However, the inventors discovered that while existing protocols allow terminal devices to report only RI and CQI (Current Quality Index) without the Precoding Matrix Indicator (PMI) when providing CSI feedback based on channel heterogeneity, non-PMI CSI reporting is not well supported in energy-saving scenarios where the number of antennas is dynamically adjusted. Therefore, how network devices configure CSI reporting in energy-saving scenarios and how terminal devices report non-PMI CSI are currently pressing issues to be addressed.

[0009] In response to at least one of the above problems, an embodiment of the present application provides a method and apparatus for indicating channel state information reporting configuration.

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

[0011] a first receiving unit configured to receive a channel state information reporting configuration from a network device, wherein the channel state information reporting configuration at least includes a feedback quantity of the channel state information;

[0012] The feedback amount is not configured as cri-RI-CQI, and / or

[0013] The channel state information reporting configuration does not include non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication).

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

[0015] a first receiving unit configured to receive a channel state information reporting configuration from a network device, wherein the channel state information reporting configuration includes at least a feedback amount of the channel state information;

[0016] The channel state information reporting configuration does not include a sub-configuration list, and / or,

[0017] The subconfiguration in the subconfiguration list in the channel state information reporting configuration is not configured with antenna port subset indication information, where the antenna port subset indication information is used to indicate the activated antenna ports associated with the subconfiguration; and / or,

[0018] antenna port subset indication information is configured for a subconfiguration in the subconfiguration list in the channel state information reporting configuration, where the antenna port subset indication information is used to indicate an activated antenna port associated with the subconfiguration, and the activated antenna port associated with the subconfiguration is associated with non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication); and / or,

[0019] The sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with a CSI-RS resource list.

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

[0021] A second sending unit, configured to send a channel state information reporting configuration to the terminal device, wherein the channel state information reporting configuration includes at least a feedback amount of the channel state information;

[0022] The feedback amount is not configured as cri-RI-CQI, and / or

[0023] The channel state information reporting configuration does not include non-precoding matrix indication (non-PMI) antenna port indication information.

[0024] According to one aspect of an embodiment of the present application, a device for indicating a channel state information (CSI) reporting configuration is provided, including:

[0025] A second sending unit, configured to send a channel state information reporting configuration to the terminal device, wherein the channel state information reporting configuration includes at least a feedback amount of the channel state information;

[0026] The channel state information reporting configuration does not include a sub-configuration list, and / or,

[0027] The subconfiguration in the subconfiguration list in the channel state information reporting configuration is not configured with antenna port subset indication information, where the antenna port subset indication information is used to indicate the activated antenna ports associated with the subconfiguration; and / or,

[0028] antenna port subset indication information is configured for a subconfiguration in the subconfiguration list in the channel state information reporting configuration, where the antenna port subset indication information is used to indicate an activated antenna port associated with the subconfiguration, and the activated antenna port associated with the subconfiguration is associated with non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication); and / or,

[0029] The sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with a CSI-RS resource list. According to one aspect of an embodiment of the present application, a device for indicating a channel state information (CSI) reporting configuration is provided, comprising:

[0030] A first receiving unit, configured to receive a channel state information reporting configuration from a network device, wherein the channel state information reporting configuration includes at least a sub-configuration list;

[0031] A first sending unit is configured to calculate a CQI and / or RI according to the first port index sequence and report the CQI and / or RI, where the first port index sequence is related to a sub-configuration in the sub-configuration list.

[0032] One of the beneficial effects of the embodiments of the present application is that: in a network energy-saving scenario, the antenna port for calculating CQI / RI related to the sub-configuration in the CSI reporting configuration is determined, thereby realizing the CSI reporting function without PMI in the network energy-saving scenario; or, in the network energy-saving scenario, the network device limits the terminal device to perform CSI feedback without PMI by configuring the CSI feedback amount, or CSI feedback without PMI is not applicable to the network energy-saving scenario, thereby ensuring that the terminal device in the network energy-saving scenario normally feeds back CSI.

[0033] 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.

[0034] 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.

[0035] 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

[0036] 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.

[0037] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application;

[0038] FIG2 is a schematic diagram of a method for indicating a channel state information reporting configuration according to an embodiment of the present application;

[0039] FIG3 is a schematic diagram of a method for indicating a channel state information reporting configuration according to an embodiment of the present application;

[0040] FIG4 is a schematic diagram of a method for indicating a channel state information reporting configuration according to an embodiment of the present application;

[0041] FIG5 is a schematic diagram of a method for indicating a channel state information reporting configuration according to an embodiment of the present application;

[0042] FIG6 is a schematic diagram of a capability reporting method according to an embodiment of the present application;

[0043] FIG7 is a schematic diagram of a method for indicating a channel state information reporting configuration according to an embodiment of the present application;

[0044] FIG8 is a schematic diagram of a method for indicating a channel state information reporting configuration according to an embodiment of the present application;

[0045] FIG9 is a schematic diagram of a capability reporting method according to an embodiment of the present application;

[0046] FIG10 is a schematic diagram of an indicator device for reporting channel state information according to an embodiment of the present application;

[0047] FIG11 is a schematic diagram of an indicator device for reporting channel state information according to an embodiment of the present application;

[0048] FIG12 is a schematic diagram of a capability reporting device according to an embodiment of the present application;

[0049] FIG13 is a schematic diagram of an indicator device for reporting channel state information according to an embodiment of the present application;

[0050] FIG14 is a schematic diagram of an indicator device for reporting channel state information according to an embodiment of the present application;

[0051] FIG15 is a schematic diagram of a capability reporting device according to an embodiment of the present application;

[0052] FIG16 is a schematic diagram of a terminal device according to an embodiment of the present application;

[0053] FIG17 is a schematic diagram of a network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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 measuring, such as 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.

[0064] 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.

[0065] The following describes the scenarios of the embodiments of the present application through examples, but the present application is not limited thereto.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] In the embodiments of the present application, the high-layer signaling may be, for example, radio resource control (RRC) signaling; for example, an RRC message, including, for example, an MIB, system information, or a dedicated RRC message; or an RRC information element (RRC IE). The high-layer signaling may also be, for example, MAC (Medium Access Control) signaling; or a MAC control element (MAC CE). However, the present application is not limited thereto.

[0070] In mobile communication systems, terminal devices typically measure channel state information (CSI) based on instructions and configuration 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.

[0071] In NR's CSI feedback mechanism, the terminal device measures and reports reference signals based on the CSI configuration. CSI can be composed of feedback quantities such as Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), Channel Measurement 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).

[0072] The quantity / type of CSI feedback is configured by the feedback quantity information element (reportQuantity) in the CSI reporting configuration (CSI-ReportConfig IE) (which can be regarded as a configuration parameter, hereinafter referred to as feedback quantity). reportQuantity can be set to "none", "cri-RI-PMI-CQI", "cri-RI-i1", "cri-RI-i1-CQI", "cri-RI-CQI", "cri-RSRP", "cri-SINR", "ssb-Index-RSRP", "ssb-Index-SINR", or "cri-RI-LI-PMI-CQI":

[0073] none: The UE does not report any CSI measurement values.

[0074] cri-RI-PMI-CQI: UE reports CRI, RI, PMI, and CQI corresponding to CRI.

[0075] cri-RI-i1: UE reports CRI, RI corresponding to CRI, and the i1 part of PMI.

[0076] cri-RI-i1-CQI: UE reports CRI, RI corresponding to CRI, i1 part of PMI, and CQI.

[0077] cri-RI-CQI: UE reports CRI, RI and CQI corresponding to CRI.

[0078] cri-RSRP: UE reports CRI and RSRP corresponding to CRI.

[0079] cri-SINR: CRI reported by UE, SINR corresponding to CRI.

[0080] ssb-Index-RSRP: The UE reports the ssb-Index and the RSRP corresponding to the ssb-Index.

[0081] ssb-Index-SINR: UE reports ssb-Index and the SINR corresponding to ssb-Index.

[0082] cri-RI-LI-PMI-CQI: The UE reports CRI and the LI, PMI, and CQI corresponding to the CRI.

[0083] The terminal device receives the CSI reporting configuration configured by the network device, wherein when the CSI feedback amount reportQauntity is configured as "cri-RI-CQI", it indicates that the UE reports CRI, RI and CQI corresponding to the CRI, and does not include PMI, that is, the current CSI feedback is non-PMI feedback based on the non-precoding matrix indication. The network device obtains the CSI from the terminal to the network device through the uplink sounding reference signal SRS sent by the terminal device. If there is uplink and downlink channel reciprocity, the network-side device can calculate the precoding matrix suitable for the terminal device based on the CSI from the terminal device to the network device. The CSI-RS sent by the network device is precoded as described above, and the terminal device can obtain the equivalent channel from the network device to the terminal device based on the measurement, estimate the corresponding other CSI information, and feed it back to the network-side device through the CSI report. The other CSI information includes, for example, the selection port indication, RI, CQI, etc. The terminal device can determine the CSI-RS port for channel measurement corresponding to RI according to the non-PMI antenna port indication information (non-PMI-PortIndication) configured by the network device, or the default antenna port order, and then calculate RI and CQI. Specifically including:

[0084] For non-PMI CSI feedback, under different precoding assumptions for each rank, the UE performs rank-adaptive CQI calculation and considers UE interference in the calculation to determine the optimal RI value. Assuming a CSI-RS resource with P antenna ports, its port index is represented by p i, i = 0, 1, ..., P-1. When Rank = v, v antenna ports out of P antenna ports are selected for transmission. non-PMI-PortIndication is used for antenna port indication for RI / CQI calculation. It indicates v antenna ports out of P antenna ports for each rank v. For each CSI-RS resource used for channel measurement, non-PMI-PortIndication can indicate which v antenna ports out of P antenna ports belong to the v antenna ports of each rank v.

[0085] According to the CSI feedback framework, when the CSI feedback amount reportQauntity is configured as "cri-RI-CQI", if the network device configures non-PMI-PortIndication, the network device configures the antenna port index for each CSI-RS resource used for channel measurement. For rank v, it indicates v antenna ports, and indicates them according to the order of the layers. That is, for one CSI-RS resource, configure As the antenna port index indication, where Indicates the antenna port index of rank v; if the network device is not configured with a port indication parameter, the terminal device defaults to the antenna port of rank v being the first v antenna ports among the antenna ports corresponding to the CSI-RS resource.

[0086] In network energy-saving scenarios, to mitigate channel mutations caused by network devices adjusting the number of antennas, a feasible solution is for the terminal device to simultaneously send multiple CSI results. Each CSI result corresponds to an antenna adjustment mode or antenna configuration scheme, that is, a CSI reporting sub-configuration. This allows network devices to obtain CSI in a timely and accurate manner for data scheduling and can also recommend antenna adjustment schemes for network devices.

[0087] In network energy-saving scenarios, network devices may dynamically adjust the number of antennas to achieve energy savings. When the number of antennas changes, the number of CSI-RS antenna ports may also change accordingly. Therefore, the v ports of rank v determined by the network device before the antenna number adjustment may not be applicable to the v ports of rank v after the adjustment. For example, the CSI-RS resource configuration includes eight antenna ports, 0 to 7. Before the antenna number adjustment, the network device indicates through non-PMI-PortIndication that the three antenna ports corresponding to rank 3 are antenna ports 4, 7, and 8. However, when the network device shuts down some antennas, the CSI-RS antenna ports are adjusted accordingly, from antenna ports 0 to 7 to antenna ports 0 to 3. Of the three antenna ports corresponding to rank 3 indicated by non-PMI-PortIndication, antenna ports 7 and 8 have already been shut down. Therefore, the three antenna ports of rank 3 indicated by non-PMI-PortIndication are now unavailable.

[0088] In response to at least one of the above problems, an embodiment of the present application determines the antenna port for calculating CQI / RI related to the sub-configuration in the CSI reporting configuration in a network energy-saving scenario, thereby realizing the CSI reporting function without PMI in the network energy-saving scenario; or, in the network energy-saving scenario, the network device limits the terminal device to perform CSI feedback without PMI through the configuration method of the CSI feedback amount, or the CSI feedback without PMI is not applicable to the network energy-saving scenario, thereby ensuring that the terminal device in the network energy-saving scenario can normally feedback CSI.

[0089] The following description is made using an energy-saving scenario as an example, but the present application is not limited thereto and can be applied to any scenario involving reporting of channel state information.

[0090] Embodiments of the first aspect

[0091] The embodiment of the present application provides a method for indicating channel state information reporting configuration, which is described from the terminal device side. Figure 2 is a schematic diagram of the method for indicating channel state information reporting configuration according to the embodiment of the present application. As shown in Figure 2, the method includes:

[0092] 201. A terminal device receives a channel state information reporting configuration from a network device, where the channel state information reporting configuration includes at least a feedback amount of channel state information.

[0093] The feedback amount is not configured as cri-RI-CQI, and / or

[0094] The channel state information reporting configuration does not include a sub-configuration list, and / or,

[0095] The channel state information reporting configuration does not include non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication), and / or,

[0096] The sub-configuration in the sub-configuration list in the channel state information reporting configuration is not configured with antenna port subset indication information, and / or,

[0097] The sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with antenna port subset indication information, and the activated antenna port associated with the sub-configuration is associated with non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication); and / or,

[0098] The sub-configurations in the sub-configuration list in the channel state information reporting configuration are configured as a CSI-RS resource list.

[0099] It is worth noting that FIG2 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 removed. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG2 above.

[0100] In some embodiments, the terminal device can also receive CSI-RS resource configuration, which is associated with the CSI reporting configuration and is used for channel measurement CSI-RS. The resource configuration is completed through RRC layer signaling CSI-ResourceConfig. The CSI-RS resource configuration also includes antenna port parameters (nrOfPort) configured for each CSI-RS resource. For example, the CSI-RS resource (ID is 1) is configured with nrOfPort=8, which means 8 antenna ports, namely 0, 1, 2, 3, 4, 5, 6, and 7. The CSI-RS resource (ID is 2) is configured with nrOfPort 4, which means 4 antenna ports, namely 0, 1, 2, and 3. Examples are not given one by one here.

[0101] In some embodiments, the reporting configuration received in 401 is completed through RRC layer signaling CSI-ReportConfig IE. Each reporting configuration is associated with one or more resource configurations (CSI-ResourceConfig), indicating the resource configuration used for channel measurement and / or interference measurement. In addition, the reporting configuration also includes codebook configuration, feedback amount. As described in the previous embodiment, the feedback amount can be set to "none", "cri-RI-PMI-CQI", "cri-RI-i1", "cri-RI-i1-CQI", "cri-RI-CQI", "cri-RSRP", "cri-SINR", "ssb-Index-RSRP", "ssb-Index-SINR", or "cri-RI-LI-PMI-CQI". In addition, the reporting configuration can also include an indication of the CSI reporting type (non-periodic, periodic, semi-continuous, etc.), which will not be repeated here. Among them, when the feedback amount is configured as cri-RI-CQI, it indicates that the terminal device is CSI feedback without PMI, that is, the CSI feedback amount does not include PMI, but the embodiment of the present application is not limited by this name. When the feedback amount is configured as cri-RI-CQI, the reporting configuration may also include or not include non-(non-) PMI antenna port indication information (for example, non-PMI-PortIndication) for indicating the antenna port used for CQI / RI calculation. The implementation method of the non-PMI-PortIndication is as described above and will not be repeated here.

[0102] In some embodiments, to support network energy conservation, a CSI reporting configuration may include a sub-configuration list containing multiple sub-configurations. For example, a CSI reporting configuration may include a sub-configuration list containing L sub-configurations, each of which corresponds to an antenna port subset indication or a CSI-RS resource list.

[0103] In some embodiments, the sub-configuration list can be provided by the high-level parameter csi-ReportSubConfigList, each sub-configuration is identified by csi-ReportSubConfigID, and each sub-configuration corresponds to a CSI-RS resource list or a CSI-RS antenna port subset, and / or corresponds to a PDSCH power offset related to the CSI-RS.

[0104] For example, each sub-configuration may be configured with an antenna port subset by a bitmap parameter (port-subsetIndicator, hereinafter referred to as antenna port subset indication information), where the bitmap includes a bit sequence p0, p1, ..., p Pm-1 , where p0 is the MSB, pPm-1 is LSB, p i Corresponding to antenna port 3000+i, Pm is equal to the number of ports nrofPorts configured for the CSI-RS resources in the NZP-CSI-RS resource set for channel measurement associated with the CSI reporting configuration. A bit of 0 in the antenna port subset indication information indicates that the corresponding antenna port is disabled / deactivated / untriggered for the sub-configuration, and a bit of 1 in the antenna port subset indication information indicates that the corresponding antenna port is enabled / activated / triggered for the sub-configuration. In other words, a bit of 1 in the antenna port subset indication information indicates that the corresponding antenna port belongs to the antenna port subset associated with the sub-configuration for the sub-configuration. In other words, the antenna ports in the antenna port subset are the antenna ports that are activated / indicated / triggered among the antenna ports configured in the CSI-RS resource configuration for channel measurement associated with the reporting configuration, that is, a port subset / part of the CSI-RS resources for channel measurement associated with the reporting configuration.

[0105] For example, a CSI-RS resource set in the CSI-RS resource setting includes 8 CSI-RS resources, CSI-RS resources 0 to 7, and each CSI-RS resource includes 32 ports, that is, port indexes 0 to 31. The CSI-RS resource set includes 4 sub-configurations, and all bit values ​​of the bit map (32 bits in total) of the port-subsetIndicator corresponding to sub-configuration 0 are 1, that is, the antenna port subset associated with sub-configuration 0 includes ports 0 to 31 of the CSI-RS resource, and the low-order 16 bit values ​​of the bit map (32 bits in total) of the port-subsetIndicator corresponding to sub-configuration 1 are 1 (the other bit values ​​are 0), that is, the antenna port subset associated with sub-configuration 1 includes ports 0 to 31 of the CSI-RS resource. 15. The low-order 8 bits of the bit map (32 bits in total) of port-subsetIndicator corresponding to sub-configuration 2 are 1 (the other bits are 0), that is, the antenna port subset related to sub-configuration 2 includes CSI-RS resource ports 0 to 7. The low-order 4 bits of the bit map (32 bits in total) of port-subsetIndicator corresponding to sub-configuration 3 are 1 (the other bits are 0), that is, the antenna port subset related to sub-configuration 3 includes CSI-RS resources 0 to 3.

[0106] In some embodiments, a sub-configuration may be configured with a CSI-RS resource list to indicate one or more CSI-RS resources in a CSI-RS resource set for channel measurement associated with a reporting configuration. The CSI-RS resource lists of different sub-configurations in the sub-configuration list may be the same or different, and the embodiments of the present application are not limited thereto. If a sub-configuration is not configured with a CSI-RS resource list, the sub-configuration may be associated with all CSI-RS resources in a CSI-RS resource set for channel measurement associated with the reporting configuration.

[0107] In some embodiments, in order to solve the problem of CSI reporting without PMI in a network energy-saving scenario, it is necessary to restrict the feedback amount in the reporting configuration and the configuration of the sub-configuration list.

[0108] FIG3 is a schematic diagram of a method for indicating a channel state information reporting configuration according to an embodiment of the present application. As shown in FIG3 , the method includes:

[0109] 301. A terminal device receives a channel state information reporting configuration from a network device, where the channel state information reporting configuration includes at least a feedback amount of channel state information.

[0110] The feedback amount is not configured as cri-RI-CQI, and / or

[0111] The channel state information reporting configuration does not include non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication).

[0112] In some embodiments, the terminal receives a channel state information reporting configuration, and the channel state information reporting configuration includes a sub-configuration list (i.e., supporting network energy saving scenarios); but the feedback amount is not configured as cri-RI-CQI, and the cri-RI-CQI represents CSI feedback without PMI. That is, when the reporting configuration received by the terminal device includes a sub-configuration list, the feedback amount cannot be configured as the cri-RI-CQI, and the feedback amount can be configured as a parameter other than cri-RI-CQI, or, when the reporting configuration received by the terminal device includes a sub-configuration list, the feedback amount is configured as 'cri-RI-PMI-CQI' or 'cri-RI-i1' or 'cri-RI-i1-CQI' or 'cri-RI-LI-PMI-CQI'. In other words, when the reporting configuration received by the terminal device includes a sub-configuration list, the terminal device does not support or expect CSI feedback without PMI, or the terminal device does not expect the feedback amount to be configured as the cri-RI-CQI. This example does not limit whether the sub-configuration in the sub-configuration list is configured with antenna port subset indication information, and is applicable to both the sub-configuration configured with antenna port subset indication and the sub-configuration configured with the CSI-RS resource list.

[0113] In some embodiments, the terminal receives a channel state information reporting configuration, and the channel state information reporting configuration includes a sub-configuration list (i.e., supporting network energy saving scenarios); but the channel state information reporting configuration does not include non-PMI antenna port indication information (non-PMI-PortIndication). That is, when the reporting configuration received by the terminal device includes a sub-configuration list, the channel state information reporting configuration does not include non-PMI antenna port indication information, or, when the reporting configuration received by the terminal device includes a sub-configuration list, the terminal device does not support or expect CSI feedback without PMI, or the terminal device does not expect the channel state information reporting configuration to include non-PMI antenna port indication information (non-PMI-PortIndication). This example does not limit whether the sub-configuration in the sub-configuration list is configured with antenna port subset indication information, and is applicable to both sub-configurations configured with antenna port subset indications and sub-configurations configured with CSI-RS resource lists.

[0114] The above two implementation modes can be implemented simultaneously or independently, and this application is not limited thereto.

[0115] In some embodiments, the terminal receives a channel state information reporting configuration, the channel state information reporting configuration includes a sub-configuration list (i.e., supporting network energy saving scenarios), each sub-configuration in the sub-configuration list corresponds to a bitmap-based antenna port subset indication information, and the feedback amount is not configured as the cri-RI-CQI. That is, when the reporting configuration received by the terminal device includes a sub-configuration list, and each sub-configuration in the sub-configuration list corresponds to a bitmap-based antenna port subset indication information, the feedback amount cannot be configured as the cri-RI-CQI, that is, the feedback amount can be configured as a parameter other than cri-RI-CQI, or, when the reporting configuration received by the terminal device includes a sub-configuration list, and each sub-configuration in the sub-configuration list corresponds to a bitmap-based antenna port subset indication information, the feedback amount is configured as 'cri-RI-PMI-CQI' or 'cri-RI-i1' or 'cri-RI-i1-CQI' or 'cri-RI-LI-PMI-CQI'. In other words, when the reporting configuration received by the terminal device includes a sub-configuration list, and a sub-configuration in the sub-configuration list corresponds to an antenna port subset indication information, the terminal device does not support or expect CSI feedback without PMI, or the terminal device does not expect the feedback amount to be configured as the cri-RI-CQI.

[0116] In some embodiments, a terminal device receives a channel state information reporting configuration, the channel state information reporting configuration includes a sub-configuration list (i.e., supporting network energy saving scenarios), each sub-configuration in the sub-configuration list corresponds to a bitmap-based antenna port subset indication information, and the channel state information reporting configuration does not include PMI-free antenna port indication information. That is, when the reporting configuration received by the terminal device includes a sub-configuration list, each sub-configuration in the sub-configuration list corresponds to a bitmap-based antenna port subset indication information, the channel state information reporting configuration does not include PMI-free antenna port indication information, or, when the reporting configuration received by the terminal device includes a sub-configuration list, a sub-configuration in the sub-configuration list corresponds to an antenna port subset indication information, the terminal device does not support or expect CSI feedback without PMI, or the terminal device does not expect the channel state information reporting configuration to include PMI-free antenna port indication information.

[0117] The above two implementation modes can be implemented simultaneously or independently, and this application is not limited thereto.

[0118] In some embodiments, in order to solve the problem of CSI reporting without PMI in network energy-saving scenarios, it is necessary to limit the feedback amount and the configuration of the sub-configuration list in the reporting configuration. Figure 4 is another schematic diagram of the indication method of the channel state information reporting configuration in an embodiment of the present application. As shown in Figure 4, the method includes:

[0119] 401. A terminal device receives a channel state information reporting configuration from a network device, where the channel state information reporting configuration includes at least a feedback amount of channel state information.

[0120] The channel state information reporting configuration does not include a sub-configuration list, and / or,

[0121] The channel state information reporting configuration includes a sub-configuration list, the sub-configurations in the sub-configuration list are not configured with antenna port subset indication information, and / or,

[0122] The channel state information reporting configuration includes a sub-configuration list, and the sub-configurations in the sub-configuration list are configured with a CSI-RS resource list, and / or,

[0123] The sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with antenna port subset indication information, and the antenna port subset indication information is used to indicate the activated antenna port associated with the sub-configuration, and the activated antenna port associated with the sub-configuration is related to the non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication).

[0124] In some embodiments, the terminal receives a channel state information reporting configuration, the feedback amount of the channel state information reporting configuration is configured as cri-RI-CQI, the cri-RI-CQI represents CSI feedback without PMI, and the channel state information reporting configuration does not include the sub-configuration list (i.e., the network energy saving scenario is not supported). In other words, when the feedback amount of the channel state information reporting configuration is configured as cri-RI-CQI, the channel state information reporting configuration does not include the sub-configuration list, or in other words, when the feedback amount is configured as cri-RI-CQI, the terminal device does not expect the channel state information reporting configuration to also include the sub-configuration list. This example reporting configuration does not include the sub-configuration list, so there is no need to limit whether the sub-configuration in the sub-configuration list is configured with antenna port subset indication information.

[0125] In some embodiments, the channel state information reporting configuration also includes the PMI-free antenna port indication information (equivalent to CSI feedback without PMI), and the channel state information reporting configuration does not include the sub-configuration list (i.e., the network energy saving scenario is not supported). In other words, when the channel state information reporting configuration also includes the PMI-free antenna port indication information, the channel state information reporting configuration does not include the sub-configuration list, or when the channel state information reporting configuration also includes the PMI-free antenna port indication information, the terminal device does not expect the channel state information reporting configuration to also include the sub-configuration list.

[0126] The above two implementation modes can be implemented simultaneously or independently, and this application is not limited thereto.

[0127] In some embodiments, the terminal receives a channel state information reporting configuration, the feedback amount is configured as cri-RI-CQI (equivalent to CSI feedback without PMI), the channel state information reporting configuration does not include the sub-configuration list (i.e., the network energy saving scenario is not supported), and each sub-configuration in the sub-configuration list corresponds to an antenna port subset indication information based on a bitmap. In other words, when the feedback amount is configured as cri-RI-CQI, the channel state information reporting configuration does not include the sub-configuration list, and each sub-configuration in the sub-configuration list corresponds to an antenna port subset indication information based on a bitmap. In other words, when the feedback amount is configured as cri-RI-CQI, the terminal device does not expect the channel state information reporting configuration to also include the sub-configuration list, wherein each sub-configuration in the sub-configuration list is configured with an antenna port subset indication information based on a bitmap.

[0128] In some embodiments, the channel state information reporting configuration also includes the PMI-free antenna port indication information (equivalent to CSI feedback without PMI), the channel state information reporting configuration does not include the sub-configuration list (i.e., the network energy saving scenario is not supported), and each sub-configuration in the sub-configuration list corresponds to an antenna port subset indication information based on a bitmap, or in other words, when the channel state information reporting configuration also includes the PMI-free antenna port indication information, the channel state information reporting configuration does not include the sub-configuration list, and each sub-configuration in the sub-configuration list corresponds to an antenna port subset indication information based on a bitmap. In other words, when the channel state information reporting configuration also includes the PMI-free antenna port indication information, the terminal device does not expect the channel state information reporting configuration to also include the sub-configuration list, wherein each sub-configuration in the sub-configuration list is configured with an antenna port subset indication information based on a bitmap.

[0129] The above two implementation modes can be implemented simultaneously or independently, and this application is not limited thereto.

[0130] In some embodiments, the feedback amount is configured as cri-RI-CQI (equivalent to CSI feedback without PMI), the channel state information reporting configuration further includes a subconfiguration list, but the subconfigurations in the subconfiguration list in the channel state information reporting configuration are not configured with bitmap-based antenna port subset indication information. In other words, the feedback amount is configured as cri-RI-CQI (equivalent to CSI feedback without PMI), the channel state information reporting configuration further includes a subconfiguration list, but the subconfigurations in the subconfiguration list in the channel state information reporting configuration are configured with a CSI-RS resource list. In other words, when the feedback amount is configured as cri-RI-CQI and the channel state information reporting configuration further includes a sub-configuration list, the sub-configuration in the sub-configuration list in the channel state information reporting configuration is not configured with bitmap-based antenna port subset indication information. In other words, when the feedback amount is configured as cri-RI-CQI and the channel state information reporting configuration further includes a sub-configuration list, the terminal device does not expect the sub-configuration in the sub-configuration list to be configured with bitmap-based antenna port subset indication information; in other words, when the feedback amount is configured as cri-RI-CQI and the channel state information reporting configuration further includes a sub-configuration list, the terminal device expects the sub-configuration in the sub-configuration list to be configured with a CSI-RS resource list.

[0131] In some embodiments, the channel state information reporting configuration further includes the PMI-free antenna port indication information and a subconfiguration list, but the subconfigurations in the subconfiguration list in the channel state information reporting configuration are not configured with bitmap-based antenna port subset indication information. In other words, the channel state information reporting configuration further includes the PMI-free antenna port indication information and a subconfiguration list, but the subconfigurations in the subconfiguration list in the channel state information reporting configuration are configured as CSI-RS resource lists. In other words, when the channel state information reporting configuration further includes the PMI-free antenna port indication information and a subconfiguration list, the subconfigurations in the subconfiguration list in the channel state information reporting configuration are not configured with bitmap-based antenna port subset indication information. In other words, when the channel state information reporting configuration further includes the PMI-free antenna port indication information and a subconfiguration list, the terminal device does not expect the subconfigurations in the subconfiguration list to be configured with bitmap-based antenna port subset indication information. In other words, when the channel state information reporting configuration further includes the PMI-free antenna port indication information and a subconfiguration list, the terminal device expects the subconfigurations in the subconfiguration list to be configured with CSI-RS resource lists.

[0132] The above two implementation modes can be implemented simultaneously or independently, and this application is not limited thereto.

[0133] In some embodiments, a terminal receives a channel state information reporting configuration, wherein a feedback amount in the channel state information reporting configuration is configured as cri-RI-CQI (equivalent to CSI feedback without PMI), and the channel state information reporting configuration further includes a sub-configuration list, and the sub-configurations in the sub-configuration list in the channel state information reporting configuration are configured with antenna port subset indication information based on a bitmap, and the activated antenna ports associated with the sub-configuration are related to / consistent with non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication). In other words, when the feedback amount is configured as cri-RI-CQI and the channel state information reporting configuration further includes a sub-configuration list, the sub-configurations in the sub-configuration list in the channel state information reporting configuration are configured with antenna port subset indication information based on a bitmap, and the activated ports corresponding to the terminal device sub-configuration are related to / consistent with non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication).

[0134] In some embodiments, the channel state information reporting configuration further includes the non-PMI antenna port indication information and a sub-configuration list, but the sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with antenna port subset indication information based on a bitmap, and the activated antenna port associated with the sub-configuration is related to / consistent with non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication). In other words, when the channel state information reporting configuration further includes the non-PMI antenna port indication information and a sub-configuration list, the sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with antenna port subset indication information based on a bitmap, and the activated port corresponding to the sub-configuration is related to / consistent with non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication).

[0135] In the above example, the activated antenna ports associated with the subconfiguration are associated with the non-PMI antenna port indication information (non-PMI-PortIndication), indicating that the N activated antenna ports associated with the subconfiguration, or the N antenna ports in the antenna port subset associated with the subconfiguration (assuming that the subconfiguration corresponds to N activated ports), must be consistent with the ports indicated by rank N in the non-PMI antenna port indication information (non-PMI-PortIndication). Consistency means that both the number and the index are consistent. For example, if the number of activated ports in subconfiguration 1 corresponding to CSI-RS 0 is 4, then the 4 activated ports of subconfiguration 1 are consistent with the 4 ports of rank 4 for CSI-RS 0 in non-PMI-PortIndication.

[0136] The above two implementation modes can be implemented simultaneously or independently, and this application is not limited thereto.

[0137] 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.

[0138] It can be seen from the above embodiments that in the network energy-saving scenario, the network device limits the terminal device to perform CSI feedback without PMI through the configuration method of the CSI feedback amount, or the CSI feedback without PMI is not applicable to the network energy-saving scenario (configured sub-configuration list or sub-configuration configured antenna port subset indication information), thereby ensuring that the terminal device in the network energy-saving scenario normally feeds back CSI.

[0139] Embodiments of the second aspect

[0140] The embodiment of the present application provides a method for indicating a channel state information reporting configuration, which is described from the perspective of a terminal device. The difference from the embodiment of the first aspect is that, in this embodiment, the terminal device is supported to provide CSI feedback without PMI in a network energy-saving scenario. The following, in conjunction with FIG5 , illustrates how to support CSI feedback without PMI in a network energy-saving scenario. FIG5 is a schematic diagram of a method for indicating a channel state information reporting configuration according to an embodiment of the present application. As shown in FIG5 , the method includes:

[0141] 501. A terminal device receives a channel state information reporting configuration from a network device, where the channel state information reporting configuration includes at least a sub-configuration list.

[0142] 502. The terminal device calculates a CQI and / or RI according to a first port index sequence and reports the CQI and / or RI, where the first port index sequence is related to a sub-configuration in the sub-configuration list.

[0143] In some embodiments, a terminal receives a channel state information reporting configuration, wherein the channel state information reporting configuration includes a feedback amount; the feedback amount is configured as cri-RI-CQI. The reporting configuration also includes a sub-configuration list, wherein each sub-configuration in the sub-configuration list corresponds to a bitmap-based antenna port subset indication information. Regarding the implementation of how the feedback amount, sub-configuration, and antenna port subset indication information indicate the antenna port subset, reference can be made to the embodiment of the first aspect and will not be repeated here.

[0144] In some embodiments, the terminal device also receives a CSI-RS resource configuration for channel measurement associated with the channel state information reporting configuration. For the implementation of the CSI-RS resource configuration, reference can be made to the embodiment of the first aspect and will not be repeated here.

[0145] The embodiment of the present application describes how to indicate and / or determine (assume) the first port index sequence when the feedback amount of the reporting configuration is configured as cri-RI-CQI and the reporting configuration includes a sub-configuration list, and each sub-configuration in the sub-configuration list corresponds to a bitmap-based antenna port subset indication information. The following is a detailed description.

[0146] In some embodiments, the first port index sequence is associated with a subconfiguration in the subconfiguration list, and for each subconfiguration associated with each CSI-RS for channel measurement associated with the CSI reporting configuration, the first port index sequence associated with the subconfiguration includes at least v antenna port indexes of rank v, where v is a positive integer greater than 0, and the value of v includes {1, 2, ..., P}, and the maximum value P of v is the total number of antenna ports in the antenna port subset associated with the subconfiguration. That is, the first port index sequence associated with the subconfiguration includes 1 antenna port index of rank 1, 2 antenna port indexes of rank 2..., P antenna port indexes of rank P

[0147] In some embodiments, the first port index sequence may be indicated by RRC signaling and / or determined (assumed) in a predefined manner, as described below.

[0148] In some embodiments, the first port index sequence may be indicated by RRC signaling. The RRC signaling includes first indication information, wherein the first indication information is related to a subconfiguration, and the first indication information is used to indicate v antenna ports in an antenna port subset related to the subconfiguration as the v antenna ports of rank v in the first port index sequence. For this antenna port subset, reference may be made to the embodiments of the first aspect.

[0149] In some embodiments, the first indication information may be a newly added information element in the reporting configuration, such as non-PMI-PortIndication-r19 or non-PMI-PortIndication-Es, or the existing information element non-PMI-PortIndication in the reporting configuration may be reused. The embodiments of the present application are not limited to this, and the first indication information may not be carried by the reporting configuration, and examples will not be given one by one here.

[0150] In some embodiments, the first indication information is an indication parameter list, and the number of indication parameters in the list is related to the number of NZP-CSI-RS resources used for channel measurement in the CSI reporting configuration (maxNrofNZP-CSI-RS-ResourcesPerConfig) and the number of sub-configurations in the CSI reporting configuration (maxNrofSubConfiPerConfig). For example, the number of indication parameters in the list is equal to maxNrofSubConfiPerConfig×maxNrofNZP-CSI-RS-ResourcesPerConfig. The number of indication parameters in the list can be represented by a new IE, and the embodiments of the present application are not limited to this.

[0151] In some embodiments, the first indication information is used to indicate the antenna ports used for CQI / RI calculation, and for each subconfiguration (csi-ReportSubConfig) associated with each CSI-RS resource for channel measurement associated with the CSI reporting configuration, for each rank R, the first indication information indicates which R antenna ports are used. One indication parameter corresponds to one subconfiguration associated with one CSI-RS resource for channel measurement associated with the channel state information reporting configuration, and the multiple indication parameters are first sorted in ascending order of the CSI-RS resource index, and then the multiple indication parameters corresponding to the same CSI-RS resource are sorted in ascending order of the subconfiguration index.

[0152] For example, the first indication parameter in the first indication information corresponds to the first subconfiguration associated with the first NZP CSI-RS resource in the first resource set in the resource list in the resource configuration; the second indication parameter in the first indication information corresponds to the second subconfiguration associated with the first NZP CSI-RS resource in the first resource set in the resource list in the resource configuration; and so on, until the next indication parameter in the first indication information corresponds to the last subconfiguration (csi-ReportSubConfig) associated with the first NZP CSI-RS resource in the first resource set in the resource list. Then, the next indication parameter in the first indication information corresponds to the first subconfiguration associated with the second NZP CSI-RS resource in the first resource set in the resource list in the resource configuration; and so on, until the next indication parameter in the first indication information corresponds to the last subconfiguration associated with the last NZP CSI-RS resource in the first resource set. Then, the next indication parameter in the first indication information corresponds to the first subconfiguration associated with the first NZP CSI-RS resource in the second resource set in the resource configuration, and so on, until the next indication parameter in the first indication information corresponds to the last subconfiguration associated with the last NZP CSI-RS resource in the last resource set.

[0153] For example, the CSI-RS resource configuration includes a CSI-RS resource set, which includes 4 CSI-RS resources 0 to 3. In addition, the sub-configuration list includes 2 sub-configurations, namely sub-configuration 0 and sub-configuration 1. There are 8 indication parameters in the first indication information. The first indication parameter corresponds to the sub-configuration 0 associated with the CSI-RS resource 0 in the CSI-RS resource set, the second indication parameter corresponds to the sub-configuration 1 associated with the CSI-RS resource 0 in the CSI-RS resource set, and the third indication parameter corresponds to the sub-configuration 1 associated with the CSI-RS resource 0 in the CSI-RS resource set. The fourth indicator parameter corresponds to subconfiguration 0 associated with CSI-RS resource 1 in the CSI-RS resource set, the fifth indicator parameter corresponds to subconfiguration 0 associated with CSI-RS resource 2 in the CSI-RS resource set, the sixth indicator parameter corresponds to subconfiguration 1 associated with CSI-RS resource 2 in the CSI-RS resource set, the seventh indicator parameter corresponds to subconfiguration 0 associated with CSI-RS resource 3 in the CSI-RS resource set, and the eighth indicator parameter corresponds to subconfiguration 1 associated with CSI-RS resource in the CSI-RS resource set.

[0154] In some embodiments, for each indication parameter, v antenna ports in the antenna port subset associated with the corresponding subconfiguration are indicated as the v antenna ports of rank v in the first port index sequence associated with the subconfiguration. The indication parameter includes one or more antenna port indices (a second port index sequence) corresponding to R ranks, respectively. The one or more antenna port indices corresponding to the R ranks (the indicated v antenna ports) are arranged in ascending order of rank v, for example, v = 1, 2, 3, .... That is, the indication parameter includes R groups of antenna port indices, where the vth group in the R groups of antenna port indices corresponds to v ports of rank v, and the v ports of rank v are used to calculate the RI and CQI of the rank v.

[0155] For example, an indication parameter includes a second port index sequence is the set of antenna ports associated with rank v. R is {1, 2, ..., P}, where P∈{1, 2, 4, 8}, and P is the number of antenna ports in the antenna port subset associated with the corresponding subconfiguration. In other words, P is equal to the number of activated / indicated / enabled antenna ports in the antenna port subset indication information associated with the subconfiguration, or the number of bits with a bit value of 1 in the antenna port subset indication information bitmap associated with the subconfiguration.

[0156] For example, one indication parameter corresponds to sub-configuration 1 associated with CSI-RS resource 0 in the CSI-RS resource set. For this indication parameter, The value of R is {1, 2, ... P}, P∈{1, 2, 4, 8}, where P is the number of antenna ports in the antenna port subset associated with the corresponding sub-configuration 1. According to this indicator parameter, the number of v antenna ports in the antenna port subset associated with sub-configuration 1 can be determined. As the v antenna ports of rank v in the first port index sequence associated with subconfiguration 1.

[0157] In some embodiments, the v antenna ports of rank v in the first port index sequence are determined (assumed) to be the first v antenna ports in the antenna port subset associated with the sub-configuration, sorted from small to large by port index according to a predefined method. In this predefined method, the network device does not send the first indication information, that is, the terminal device is not configured with the aforementioned RRC signaling (first indication information), and for the sub-configuration 1 of the CSI-RS resource associated with the reporting configuration, the terminal device determines (assumes) the v antenna ports of rank v in the first port index sequence associated with the sub-configuration 1. The first v antenna ports in the antenna port subset associated with subconfiguration 1, sorted by port index from smallest to largest, are associated with rank ν = 1, 2, ..., P, where P ∈ {1, 2, 4, 8}, and P is the number of antenna ports in the antenna port subset associated with the corresponding subconfiguration. That is, P is equal to the number of antenna ports activated / indicated / enabled in the antenna port subset indication information associated with the subconfiguration, or in other words, is equal to the number of bits with a bit value of 1 in the antenna port subset indication information bitmap associated with the subconfiguration. 0 represents the first indicated / activated antenna port in the antenna port subset indication information bitmap related to sub-configuration 1, or the antenna port corresponding to the first bit set to 1. 1 represents the second indicated / activated antenna port in the antenna port subset indication information bitmap related to sub-configuration 1, or the antenna port corresponding to the second bit set to 1. And so on. v-1 represents the vth indicated / activated port or the antenna port corresponding to the vth bit set to 1 in the antenna port subset indication information bitmap related to sub-configuration 1.

[0158] In some embodiments, in 503, when calculating a CQI of rank v, the UE will use the v antenna ports of rank v in the first port index sequence associated with the selected subconfiguration of the selected CSI-RS resource to calculate the CQI. At the same time, the precoding matrix of the indicated antenna port should be assumed to be proportional to For each rank ν = 1, 2, ..., P, the CQI is calculated and the best CQI and the corresponding rank indicator are selected and reported to the network device.

[0159] It can be seen from the above embodiments that in a network energy-saving scenario, the antenna port for calculating CQI / RI related to the sub-configuration in the CSI reporting configuration is determined, thereby realizing the CSI reporting function without PMI in the network energy-saving scenario.

[0160] Embodiments of the third aspect

[0161] The present application embodiment provides a capability reporting method, which is described from the perspective of a terminal device. FIG6 is a schematic diagram of the capability reporting method of the present application embodiment. As shown in FIG6 , the method includes:

[0162] 601. The terminal device sends capability information to the network device, where the capability information is used to indicate whether the terminal device supports or does not support the configured non-PMI antenna port indication information, and / or supports or does not support nonPMI (no PMI) CSI feedback, and / or supports or does not support the configured sub-configuration list.

[0163] In some embodiments, the capability information can be 1-bit information. When the bit value is 1, it indicates that the terminal device supports being configured with no PMI antenna port indication information, and / or supports nonPMI (no PMI) CSI feedback, and / or supports being configured with a sub-configuration list. When the bit value is 0, it indicates that the terminal device does not support being configured with no PMI antenna port indication information, and / or does not support nonPMI (no PMI) CSI feedback, and / or does not support being configured with a sub-configuration list, and vice versa. The embodiments of the present application are not limited to this.

[0164] In some embodiments, when the capability information indicates that the terminal device supports being configured with no PMI antenna port indication information, and / or supports nonPMI (no PMI) CSI feedback, and / or supports being configured with a sub-configuration list, the method of the second aspect embodiment can be executed; when the capability information indicates that the terminal device does not support being configured with no PMI antenna port indication information, and / or does not support nonPMI (no PMI) CSI feedback, and / or does not support being configured with a sub-configuration list, the method of the first aspect embodiment can be executed. This application is not limited to this.

[0165] The embodiments of the present application can be implemented in combination with the embodiments of the first aspect, or implemented alone. The embodiments of the present application can be implemented in combination with the embodiments of the second aspect, or implemented alone. They will not be described one by one here.

[0166] Embodiments of the fourth aspect

[0167] The embodiment of the present application provides a method for indicating channel state information reporting configuration, which is described from the perspective of a network device. The embodiment of the fourth 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.

[0168] FIG7 is a schematic diagram of a method for indicating a channel state information reporting configuration according to an embodiment of the present application. As shown in FIG7 , the method includes:

[0169] 701. The network device sends a channel state information reporting configuration to the terminal device, where the channel state information reporting configuration includes at least a feedback amount of the channel state information.

[0170] The feedback amount is not configured as cri-RI-CQI, and / or

[0171] The channel state information reporting configuration does not include a sub-configuration list, and / or,

[0172] The channel state information reporting configuration does not include non-precoding matrix indication (non-PMI) antenna port indication information, and / or,

[0173] The sub-configuration in the sub-configuration list in the channel state information reporting configuration is not configured with antenna port subset indication information, and / or,

[0174] The sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with antenna port subset indication information, and the activated antenna port associated with the sub-configuration is associated with non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication); and / or,

[0175] The sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with a CSI-RS resource list.

[0176] For implementation of the reporting configuration, please refer to the embodiment of the first aspect and will not be described in detail here. The above embodiments are merely illustrative of the embodiments of the present application, but the present application is not limited thereto. Appropriate modifications can be made based on the above embodiments. For example, the above embodiments can be used individually, or one or more of the above embodiments can be combined.

[0177] It can be seen from the above embodiments that in the network energy-saving scenario, the network device limits the terminal device to perform CSI feedback without PMI through the configuration method of the CSI feedback amount, or the CSI feedback without PMI is not applicable to the network energy-saving scenario (configured sub-configuration list or sub-configuration configured antenna port subset indication information), thereby ensuring that the terminal device in the network energy-saving scenario normally feeds back CSI.

[0178] Embodiments of the fifth aspect

[0179] The embodiment of the present application provides a method for indicating channel state information reporting configuration, which is described from the perspective of a network device. The embodiment of the fifth aspect can be combined with the embodiment of the second aspect, and the same contents as the embodiment of the second aspect will not be repeated.

[0180] FIG8 is a schematic diagram of a method for indicating a channel state information reporting configuration according to an embodiment of the present application. As shown in FIG8 , the method includes:

[0181] 801. A network device sends a channel state information reporting configuration to a terminal device, where the channel state information reporting configuration includes at least a sub-configuration list.

[0182] 802. The network device receives the CQI and / or RI reported by the terminal device, where the CQI and / or RI is determined according to a first port index sequence related to the subconfiguration in the subconfiguration list.

[0183] In some embodiments, the method may also include: the network device sends first indication information to the terminal device, wherein the first indication information is related to the sub-configuration, and the first indication information is used to indicate v antenna ports in the antenna port subset related to the sub-configuration as v antenna ports of rank v in the first port index sequence.

[0184] For the implementation of the above steps, please refer to the embodiment of the second aspect and will not be repeated here.

[0185] 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.

[0186] It can be seen from the above embodiments that in a network energy-saving scenario, the antenna port for calculating CQI / RI related to the sub-configuration in the CSI reporting configuration is determined, thereby realizing the CSI reporting function without PMI in the network energy-saving scenario.

[0187] Embodiments of the sixth aspect

[0188] The present application embodiment provides a capability reporting method, which is described from the perspective of a network device. FIG9 is a schematic diagram of the capability reporting method of the present application embodiment. As shown in FIG9 , the method includes:

[0189] 901. The network device receives capability information sent by the terminal device, where the capability information is used to indicate whether the terminal device supports or does not support the configured non-PMI antenna port indication information, and / or supports or does not support nonPMI (no PMI) CSI feedback, and / or supports or does not support the configured sub-configuration list.

[0190] For the implementation of the capability information, please refer to the embodiment of the third aspect and will not be repeated here.

[0191] The embodiments of the present application can be implemented in combination with the embodiments of the fourth aspect, or implemented alone. The embodiments of the present application can be implemented in combination with the embodiments of the fifth aspect, or implemented alone. They will not be described one by one here.

[0192] Embodiments of the seventh aspect

[0193] An embodiment of the present application provides a device for indicating channel state information reporting configuration, which may be, for example, a terminal device, or one or more components or assemblies configured in the terminal device.

[0194] FIG10 is a schematic diagram of an indication device for channel state information reporting configuration according to an embodiment of the present application. As shown in FIG10 , the indication device 1000 for channel state information reporting configuration includes:

[0195] A first receiving unit 1001 is configured to receive a channel state information reporting configuration from a network device, wherein the channel state information reporting configuration includes at least a feedback amount of the channel state information;

[0196] The feedback amount is not configured as cri-RI-CQI, and / or

[0197] The channel state information reporting configuration does not include a sub-configuration list, and / or,

[0198] The channel state information reporting configuration does not include non-precoding matrix indication (non-PMI) antenna port indication information.

[0199] or,

[0200] A first receiving unit 1001 is configured to receive a channel state information reporting configuration from a network device, wherein the channel state information reporting configuration includes at least a feedback amount of the channel state information;

[0201] The channel state information reporting configuration does not include a sub-configuration list, and / or,

[0202] The channel state information reporting configuration does not include non-precoding matrix indication (non-PMI) antenna port indication information.

[0203] The sub-configuration in the sub-configuration list in the channel state information reporting configuration is not configured with antenna port subset indication information, and / or,

[0204] The sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with antenna port subset indication information, and the activated antenna port associated with the sub-configuration is associated with non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication); and / or,

[0205] The sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with a CSI-RS resource list.

[0206] For the implementation of the reporting configuration, please refer to the embodiment of the first aspect and will not be repeated here.

[0207] FIG11 is a schematic diagram of an indication device for channel state information reporting configuration according to an embodiment of the present application. As shown in FIG11 , the indication device 1100 for channel state information reporting configuration includes:

[0208] A first receiving unit 1101 is configured to receive a channel state information reporting configuration from a network device, where the channel state information reporting configuration includes at least a sub-configuration list;

[0209] The first sending unit 1102 calculates a CQI and / or RI according to a first port index sequence and reports the CQI and / or RI, where the first port index sequence is related to a sub-configuration in the sub-configuration list.

[0210] For the implementation of the indicating device 1100, reference can be made to the embodiment of the second aspect, which will not be described in detail here.

[0211] It can be seen from the above embodiments that in the network energy-saving scenario, the network device limits the terminal device to perform CSI feedback without PMI through the configuration method of the CSI feedback amount, or the CSI feedback without PMI is not applicable to the network energy-saving scenario (configured sub-configuration list or sub-configuration configured antenna port subset indication information), thereby ensuring that the terminal device in the network energy-saving scenario normally feeds back CSI.

[0212] FIG12 is a schematic diagram of a capability reporting device according to an embodiment of the present application. As shown in FIG12 , the capability reporting device 1200 includes:

[0213] The first sending unit 1201 sends capability information to the network device, where the capability information is used to indicate whether the terminal device supports or does not support the configured non-PMI antenna port indication information, and / or supports or does not support nonPMI (no PMI) CSI feedback, and / or supports or does not support the configured sub-configuration list.

[0214] For the implementation of capability information, please refer to the embodiment of the third aspect and will not be repeated here.

[0215] It is worth noting that the above description only describes the components or modules related to the present application, but the present application is not limited thereto. The devices 1000, 1100, and 1200 may also include other components or modules. For details of these components or modules, reference may be made to the relevant art.

[0216] In addition, for the sake of simplicity, Figures 10 to 12 only illustrate the connection relationships or signal paths between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connections can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; this application is not limited to this.

[0217] Embodiments of the eighth aspect

[0218] An embodiment of the present application provides a device for indicating channel state information reporting configuration, which may be, for example, a network device, or one or more components or assemblies configured on the network device.

[0219] FIG13 is a schematic diagram of an indication device for channel state information reporting configuration according to an embodiment of the present application. As shown in FIG13 , the indication device 1300 for channel state information reporting configuration includes:

[0220] A second sending unit 1301 is configured to send a channel state information reporting configuration to a terminal device, where the channel state information reporting configuration includes at least a feedback amount of the channel state information;

[0221] The feedback amount is not configured as cri-RI-CQI, and / or

[0222] The channel state information reporting configuration does not include a sub-configuration list, and / or,

[0223] The channel state information reporting configuration does not include non-precoding matrix indication (non-PMI) antenna port indication information, and / or,

[0224] The sub-configuration in the sub-configuration list in the channel state information reporting configuration is not configured with antenna port subset indication information, and / or,

[0225] The sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with antenna port subset indication information, and the activated antenna port associated with the sub-configuration is associated with non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication); and / or,

[0226] The sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with a CSI-RS resource list.

[0227] For the implementation of the reporting configuration, please refer to the embodiment of the first aspect and will not be repeated here.

[0228] FIG14 is a schematic diagram of an indication device for channel state information reporting configuration according to an embodiment of the present application. As shown in FIG14 , the indication device 1400 for channel state information reporting configuration includes:

[0229] A second sending unit 1401 sends a channel state information reporting configuration to a terminal device, where the channel state information reporting configuration includes at least a sub-configuration list;

[0230] The second receiving unit 1402 receives the CQI and / or RI reported by the terminal device, where the CQI and / or RI is determined according to a first port index sequence related to the sub-configuration in the sub-configuration list.

[0231] Regarding the implementation of the indicating device 1400, reference can be made to the embodiment of the second aspect, which will not be described in detail here.

[0232] It can be seen from the above embodiments that in a network energy-saving scenario, the antenna port for calculating CQI / RI related to the sub-configuration in the CSI reporting configuration is determined, thereby realizing the CSI reporting function without PMI in the network energy-saving scenario.

[0233] FIG15 is a schematic diagram of a capability reporting device according to an embodiment of the present application. As shown in FIG15 , the capability reporting device 1500 includes:

[0234] The second receiving unit 1501 receives capability information sent by the terminal device, where the capability information is used to indicate whether the terminal device supports or does not support the configured non-PMI antenna port indication information, and / or supports or does not support nonPMI (no PMI) CSI feedback, and / or supports or does not support the configured sub-configuration list.

[0235] For the implementation of capability information, please refer to the embodiment of the third aspect and will not be repeated here.

[0236] It is worth noting that the above description only describes the components or modules related to the present application, but the present application is not limited thereto. The devices 1300, 1400, and 1500 may also include other components or modules. For details of these components or modules, reference may be made to the relevant art.

[0237] In addition, for the sake of simplicity, Figures 13 to 15 only illustrate the connection relationships or signal paths between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connections can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; this application is not limited to this.

[0238] Embodiments of the ninth aspect

[0239] An embodiment of the present application also provides a communication system, and reference may be made to FIG1 . The contents identical to those in the first to sixth aspects of the embodiments will not be repeated.

[0240] In some embodiments, the communication system 100 may include at least:

[0241] A network device comprising an indication device and / or a capability reporting device for a channel state information reporting configuration in the eighth aspect embodiment; and / or,

[0242] A terminal device, comprising an indication device and / or a capability reporting device for the channel state information reporting configuration in the embodiment of the seventh aspect.

[0243] 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.

[0244] Figure 16 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in Figure 16 , terminal device 1600 may include a processor 1610 and a memory 1620. Memory 1620 stores data and programs and is coupled to processor 1610. 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.

[0245] For example, the processor 1610 may be configured to execute a program to implement the method described in any one of the first to third aspects.

[0246] As shown in Figure 16 , the terminal device 1600 may further include: a communication module 1630, an input unit 1640, a display 1650, and a power supply 1660. 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 1600 does not necessarily include all of the components shown in Figure 16 , and these components are not essential. Furthermore, the terminal device 1600 may also include components not shown in Figure 16 , for which reference may be made to the prior art.

[0247] 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.

[0248] Figure 17 is a schematic diagram illustrating the structure of a network device according to an embodiment of the present application. As shown in Figure 17 , network device 1700 may include a processor 1710 (e.g., a central processing unit (CPU)) and a memory 1720; memory 1720 is coupled to processor 1710. Memory 1720 may store various data and may also store an information processing program 1730, which is executed under the control of processor 1710.

[0249] For example, the processor 1710 can be configured to execute a program to implement the method described in any one of the embodiments of the fourth to sixth aspects.

[0250] In addition, as shown in FIG17 , network device 1700 may further include: a transceiver 1740 and an antenna 1750, etc.; 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 network device 1700 does not necessarily include all the components shown in FIG17 ; in addition, network device 1700 may also include components not shown in FIG17 , and reference may be made to the prior art for details.

[0251] An embodiment of the present application further provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the method described in the embodiments of the first to third aspects.

[0252] An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the methods described in the embodiments of the first to third aspects.

[0253] An embodiment of the present application further provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the methods described in the embodiments of the second to fourth aspects.

[0254] An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program enables a network device to execute the methods described in the embodiments of the second to fourth aspects.

[0255] 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.

[0256] 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).

[0257] 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.

[0258] 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.

[0259] 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.

[0260] Regarding the implementation methods including the above embodiments, the following additional notes are also disclosed:

[0261] 1. A device for indicating a channel state information reporting configuration, comprising:

[0262] A second sending unit, configured to send a channel state information reporting configuration to a terminal device, where the channel state information reporting configuration includes at least a sub-configuration list;

[0263] A second receiving unit is configured to receive a CQI and / or RI reported by the terminal device, where the CQI and / or RI is determined according to a first port index sequence associated with a sub-configuration in the sub-configuration list.

[0264] 2. An apparatus according to Note 1, wherein the second sending unit also sends a first indication message to the terminal device, wherein the first indication message is related to the sub-configuration, and the first indication message is used to indicate v antenna ports in the antenna port subset related to the sub-configuration as v antenna ports of rank v in the first port index sequence.

[0265] 3. A capability reporting device, comprising:

[0266] A second receiving unit receives capability information sent by a terminal device, where the capability information is used to indicate whether the terminal device supports or does not support the configured non-PMI antenna port indication information, and / or supports or does not support nonPMI (no PMI) CSI feedback, and / or supports or does not support the configured sub-configuration list.

[0267] 4. A capability reporting device, comprising:

[0268] A first sending unit sends capability information to a network device, where the capability information is used to indicate whether the terminal device supports or does not support the configured non-PMI antenna port indication information, and / or supports or does not support nonPMI (no PMI) CSI feedback, and / or supports or does not support the configured sub-configuration list.

[0269] 5. A communication system, characterized in that the communication system includes the device described in Note 4 and / or the device described in Note 1 or 4.

Claims

1. A device for indicating a channel state information reporting configuration, comprising: A first receiving unit, configured to receive a channel state information reporting configuration from a network device, wherein the channel state information reporting configuration at least includes a feedback quantity (report quantity) of the channel state information; The feedback amount is not configured as cri-RI-CQI, and / or, The channel state information reporting configuration does not include non-precoding matrix indication (non PMI) antenna port indication information (non-PMI-PortIndication).

2. The device according to claim 1, wherein: The channel state information reporting configuration also includes a sub-configuration list; The feedback amount is not configured as the cri-RI-CQI, and / or the channel state information reporting configuration does not include the non-PMI antenna port indication information.

3. The device according to claim 1, wherein: The channel state information reporting configuration further includes a sub-configuration list, and antenna port subset indication information corresponding to the sub-configuration in the sub-configuration list; The feedback amount is not configured as the cri-RI-CQI, and / or the channel state information reporting configuration does not include the non-PMI antenna port indication information.

4. The device according to claim 1, wherein: The channel state information reporting configuration also includes a sub-configuration list; The feedback amount is configured as 'cri-RI-PMI-CQI' or 'cri-RI-i1' or 'cri-RI-i1-CQI' or 'cri-RI-LI-PMI-CQI'.

5. The device according to claim 1, wherein: The channel state information reporting configuration further includes a sub-configuration list, and antenna port subset indication information corresponding to the sub-configuration in the sub-configuration list; The feedback amount is configured as 'cri-RI-PMI-CQI' or 'cri-RI-i1' or 'cri-RI-i1-CQI' or 'cri-RI-LI-PMI-CQI'.

6. A device for indicating a channel state information reporting configuration, comprising: A first receiving unit, which receives a channel state information reporting configuration from a network device, wherein the channel state information reporting configuration at least includes a feedback amount of the channel state information; The channel state information reporting configuration does not include a sub-configuration list, and / or, A sub-configuration in the sub-configuration list in the channel state information reporting configuration is not configured with antenna port subset indication information, and the antenna port subset indication information is used to indicate an activated antenna port related to the sub-configuration; and / or, The sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with antenna port subset indication information, where the antenna port subset indication information is used to indicate an activated antenna port associated with the sub-configuration, and the activated antenna port associated with the sub-configuration is associated with non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication); and / or, The sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with a CSI-RS resource list.

7. The device according to claim 6, wherein: The feedback amount is configured as cri-RI-CQI and / or the channel state information reporting configuration further includes the PMI-free antenna port indication information; The channel state information reporting configuration does not include the sub-configuration list.

8. The device according to claim 6, wherein: The feedback amount is configured as cri-RI-CQI and / or the channel state information reporting configuration further includes the PMI-free antenna port indication information, and the channel state information reporting configuration further includes the sub-configuration list; The sub-configuration in the sub-configuration list is not configured with antenna port subset indication information; or, the sub-configuration in the sub-configuration list is configured with a CSI-RS resource list; or, the sub-configuration is configured with antenna port subset indication information, and the activated antenna port associated with the sub-configuration is related to the non-precoding matrix indication (non PMI) antenna port indication information (non-PMI-PortIndication).

9. The device according to claim 1 or 6, wherein: The device also includes: A first sending unit, which sends capability information to the network device, where the capability information is used to indicate whether the terminal device supports or does not support being configured with the non-PMI antenna port indication information, and / or, Support or not support nonPMI (no PMI) CSI feedback, and / or, Supports or does not support the configured sub-configuration list.

10. A channel state information reporting configuration indicating device, applied to a terminal device, comprising: A first receiving unit, configured to receive a channel state information reporting configuration from a network device, wherein the channel state information reporting configuration at least includes a sub-configuration list; A first sending unit is configured to calculate a CQI and / or a RI according to a first port index sequence, and report the CQI and / or the RI, wherein the first port index sequence is related to a sub-configuration in the sub-configuration list.

11. The device according to claim 10, wherein: The reporting configuration also includes a feedback amount; the feedback amount is configured as cri-RI-CQI.

12. The device according to claim 10, wherein: The first receiving unit is also used to receive CSI-RS resource configuration, and the reporting configuration also includes antenna port subset indication information corresponding to the sub-configuration in the sub-configuration list, and the antenna port subset indication information is used to indicate the antenna port subset related to the sub-configuration, and the antenna ports in the antenna port subset are the activated antenna ports configured in the CSI-RS resource configuration for channel measurement associated with the reporting configuration.

13. The device according to any one of claims 10 to 12, wherein: The first port index sequence includes at least v antenna port indices of rank v, where v is a positive integer greater than 0, and the maximum value of v is the total number of antenna ports in the antenna port subset associated with the sub-configuration.

14. The device according to claim 12, wherein: The first port index sequence is indicated by RRC signaling and / or determined (assumed) in a predefined manner.

15. The device according to claim 14, wherein: The RRC signaling includes first indication information, wherein the first indication information is related to a sub-configuration, and the first indication information is used to indicate v antenna ports in an antenna port subset related to the sub-configuration as v antenna ports of rank v in the first port index sequence.

16. The device according to claim 14, wherein: The v antenna ports of rank v in the first port index sequence are determined (assumed) according to a predefined manner as first v antenna ports whose port indexes are sorted from small to large in the antenna port subset associated with the sub-configuration.

17. The device according to claim 10, wherein: The first sending unit calculates the CQI of the rank v using v antenna ports of the rank v in the first port index sequence.

18. The device according to claim 10, wherein: The first sending unit also sends capability information to the network device, where the capability information is used to indicate that the terminal device supports being configured with non-PMI antenna port indication information and / or supports nonPMI (non-PMI) CSI feedback and / or supports being configured with the sub-configuration list.

19. A device for indicating channel state information reporting configuration, comprising: A second sending unit, which sends a channel state information reporting configuration to the terminal device, where the channel state information reporting configuration at least includes a feedback amount of the channel state information; The feedback amount is not configured as cri-RI-CQI, and / or, The channel state information reporting configuration does not include non-precoding matrix indication (non PMI) antenna port indication information.

20. A device for indicating channel state information reporting configuration, comprising: A second sending unit, which sends a channel state information reporting configuration to the terminal device, where the channel state information reporting configuration at least includes a feedback amount of the channel state information; The channel state information reporting configuration does not include a sub-configuration list, and / or, A sub-configuration in the sub-configuration list in the channel state information reporting configuration is not configured with antenna port subset indication information, and the antenna port subset indication information is used to indicate an activated antenna port related to the sub-configuration; and / or, The sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with antenna port subset indication information, where the antenna port subset indication information is used to indicate an activated antenna port associated with the sub-configuration, and the activated antenna port associated with the sub-configuration is associated with non-precoding matrix indication (non-PMI) antenna port indication information (non-PMI-PortIndication); and / or, The sub-configuration in the sub-configuration list in the channel state information reporting configuration is configured with a CSI-RS resource list.

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