CSI (Channel State Information) acquisition method, CSI report feedback method, terminal and network side equipment

Abstract

The invention discloses a channel state information (CSI) acquisition method, a CSI report feedback method, a terminal and network side equipment, and belongs to the technical field of wireless communication, the channel state information report feedback method of the embodiment of the invention comprises the following steps: the terminal feeds back a first CSI report and a second CSI report to the network side equipment; wherein the first CSI report is associated with at least one first transmission layer, the second CSI report is associated with at least one second transmission layer, and the at least one first transmission layer and the at least one second transmission layer are not completely the same.

Description

Technical Field

[0001] This application belongs to the field of wireless communication technology, specifically relating to a CSI acquisition method, a CSI report feedback method, a terminal, and network-side equipment. Background Technology

[0002] In related technologies, terminals, according to higher-layer signaling or protocol agreements, transmit one or more Channel State Information (CSI) reports onto an uplink channel resource and feed them back to the network-side equipment. However, if the payload size of the CSI report is too large and exceeds the carrying capacity of the uplink channel resource, the terminal may, according to existing protocols, discard part or all of the CSI report.

[0003] For a CSI report configuration, network-side devices can indicate rank restriction information to the terminal, and the number of transport layers reported by the terminal is limited by the rank restriction indication.

[0004] As the number of transceiver antennas increases, the proportion of CSIs with higher rank may increase. In related technologies, network-side equipment can only allocate one uplink channel resource to one CSI report. When the network-side equipment cannot determine the number of all transmission layers acquired by the terminal, it needs to allocate uplink channel resources based on the maximum rank value. When the actual channel rank value is less than the maximum rank value, it may result in a waste of uplink channel resources. Summary of the Invention

[0005] This application provides a CSI acquisition method, a CSI report feedback method, a terminal, and a network-side device, which can avoid wasting uplink channel resources in CSI reports.

[0006] In a first aspect, a method for feeding back channel state information reports is provided, comprising: a terminal feeding back a first channel state information (CSI) report and a second CSI report to a network-side device; wherein the first CSI report is associated with at least one first transport layer, the second CSI report is associated with at least one second transport layer, and the at least one first transport layer is not completely identical to the at least one second transport layer.

[0007] Secondly, a feedback method for channel state information reports is provided, comprising: a terminal configuring associated reference signals based on a sixth CSI report to obtain a third CSI report; the terminal feeding back the third CSI report to a network-side device, wherein the third CSI report includes third indication information, the third indication information being used to indicate at least one of the following: whether the third CSI report is associated with all transport layers, and the number of transport layers not associated with the third CSI report.

[0008] Thirdly, a CSI acquisition method is provided, comprising: a network-side device receiving a first CSI report and a second CSI report fed back by a terminal, wherein the first CSI report is associated with at least one first transport layer, and the second CSI report is associated with at least one second transport layer, wherein the at least one first transport layer and the at least one second transport layer are not completely identical; and the network-side device acquiring CSI based on the first CSI report and the second CSI report.

[0009] Fourthly, a CSI acquisition method is provided, comprising: a network-side device sending a sixth CSI report configuration to a terminal; the network-side device receiving a third CSI report fed back by the terminal based on the sixth CSI report configuration, wherein the third CSI report includes third indication information, the third indication information being used to indicate at least one of the following: whether the third CSI report is associated with all transport layers, the number of transport layers not associated with the third CSI report; and the network-side device acquiring CSI based on the third CSI report.

[0010] Fifthly, a feedback device for channel state information reporting is provided, comprising: a sending module for feeding back a first channel state information (CSI) report and a second CSI report to a network-side device; wherein the first CSI report is associated with at least one first transport layer, the second CSI report is associated with at least one second transport layer, and the at least one first transport layer is not completely identical to the at least one second transport layer.

[0011] In a sixth aspect, a CSI report feedback device is provided, comprising: a receiving module for obtaining a third CSI report based on a reference signal associated with a sixth CSI report; and a sending module for feeding back the third CSI report to a network-side device, wherein the third CSI report includes third indication information, the third indication information being used to indicate at least one of the following: whether the third CSI report is associated with all transport layers, and the number of transport layers not associated with the third CSI report.

[0012] In a seventh aspect, a CSI acquisition apparatus is provided, comprising: a receiving module for receiving a first CSI report and a second CSI report fed back by a terminal, wherein the first CSI report is associated with at least one first transport layer, and the second CSI report is associated with at least one second transport layer, wherein the at least one first transport layer and the at least one second transport layer are not completely identical; and a processing module for acquiring CSI based on the first CSI report and the second CSI report.

[0013] Eighthly, a CSI acquisition apparatus is provided, comprising: a sending module for sending a sixth CSI report configuration to a terminal; a receiving module for receiving a third CSI report fed back by the terminal based on the sixth CSI report configuration, wherein the third CSI report includes third indication information, the third indication information being used to indicate at least one of the following: whether the third CSI report is associated with all transport layers, and the number of transport layers not associated with the third CSI report; and a processing module for acquiring CSI based on the third CSI report.

[0014] In a ninth aspect, a CSI acquisition apparatus is provided, the apparatus being configured to perform the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect, or implement the steps of the method described in the third aspect, or implement the steps of the method described in the fourth aspect.

[0015] In a tenth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect, or implementing the steps of the method as described in the second aspect.

[0016] Eleventhly, a terminal is provided, including a processor and a communication interface, wherein the processor is used to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect, and the communication interface is used to couple with the processor.

[0017] In a twelfth aspect, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the third aspect, or implementing the steps of the method as described in the fourth aspect.

[0018] In a thirteenth aspect, a network-side device is provided, including a processor and a communication interface, wherein the processor is configured to implement the steps of the method described in the third aspect, or to implement the steps of the method described in the fourth aspect, and the communication interface is configured to be coupled to the processor.

[0019] In a fourteenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect, or the steps of the method described in the fourth aspect.

[0020] In a fifteenth aspect, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal is configured to perform the steps of the method described in the first aspect or to implement the steps of the method described in the second aspect, and the network-side device is configured to perform the steps of the method described in the third aspect or to implement the steps of the method described in the fourth aspect.

[0021] In a sixteenth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, the steps of the method described in the third aspect, or the steps of the method described in the fourth aspect.

[0022] In a seventeenth aspect, a computer program / program product is provided, the computer program / program product being stored in a storage medium, the computer program / program product being executed by at least one processor to implement the steps of the method as described in the first aspect, or the steps of the method as described in the second aspect, the steps of the method as described in the third aspect, or the steps of the method as described in the fourth aspect.

[0023] In this embodiment, the terminal feeds back a first CSI report and a second CSI report with different associated transport layers to the network-side device. This eliminates the need for the network-side device to allocate uplink channel resources according to the maximum rank value, thus avoiding the waste of uplink channel resources in the CSI report. Attached Figure Description

[0024] Figure 1 This diagram illustrates a block diagram of a wireless communication system to which embodiments of this application may be applied;

[0025] Figure 2 This illustration shows a flowchart of a CSI report feedback method provided in an embodiment of this application;

[0026] Figure 3 This diagram illustrates a flowchart of a CSI report feedback method provided in an optional embodiment of this application.

[0027] Figure 4 A flowchart illustrating a CSI report feedback method provided in another optional embodiment of this application is shown.

[0028] Figure 5 This diagram illustrates a flowchart of a CSI report feedback method provided in yet another optional embodiment of this application.

[0029] Figure 6 This diagram illustrates a flowchart of a CSI report feedback method provided in yet another optional embodiment of this application.

[0030] Figure 7 This illustration shows another flowchart of the CSI report feedback method provided in an embodiment of this application;

[0031] Figure 8 This illustration shows a flowchart of a CSI acquisition method provided in an embodiment of this application.

[0032] Figure 9 This illustration shows another flowchart of the CSI acquisition method provided in an embodiment of this application;

[0033] Figure 10 This illustration shows a schematic diagram of a CSI report feedback device provided in an embodiment of this application;

[0034] Figure 11 This illustration shows another structural schematic diagram of the CSI report feedback device provided in an embodiment of this application;

[0035] Figure 12 This illustration shows a structural schematic diagram of a CSI acquisition device provided in an embodiment of this application;

[0036] Figure 13 This invention provides another schematic diagram of the CSI acquisition device according to an embodiment of the present application.

[0037] Figure 14 This illustration shows a structural diagram of a communication device provided in an embodiment of this application;

[0038] Figure 15 This illustration shows a hardware structure diagram of a terminal provided in an embodiment of this application;

[0039] Figure 16 This diagram illustrates the hardware structure of a network-side device according to an embodiment of this application. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0041] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0042] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0043] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0044] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home devices (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game consoles, personal computers (PCs), ATMs, or self-service machines, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (AS), or Wireless Fidelity (WiFi) nodes, etc.The term "base station" can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to any specific technical terminology. It should be noted that this application embodiment only uses a base station in an NR system as an example for description and does not limit the specific type of base station.

[0045] The Channel State Information (CSI) architecture can be divided into downlink CSI and uplink CSI. The downlink CSI architecture includes the downlink physical channel and the downlink reference signal; the uplink CSI architecture includes the uplink physical channel and the uplink reference signal.

[0046] Typically, the downlink physical channel is used for data transmission, while the downlink reference signal is used for channel estimation to obtain downlink channel state information (CSI). Similarly, the uplink physical channel is used for uplink data transmission, while the uplink reference signal is used for channel estimation to obtain uplink channel state information (CSI).

[0047] Typically, the terminal can determine the CSI report through higher-level signaling or default rules. It can include one of the following: 'none', 'cri-ri-pmi-cqi', 'cri-RI-i1', 'cri-RI-CQI', 'cri-RSRP', 'cri-SINR', 'ssb-Index-RSRP', 'ssb-Index-SINR', or 'cri-RI-LI-PMI-CQI'.

[0048] If the terminal is configured with CSI Report Configuration (CSI-ReportConfig) and the upper-level parameter ReportQuantity is set to "none", then the terminal will not report any content for CSI-ReportConfig.

[0049] If the reportQuantity field in the higher-layer parameter CSI-ReportConfig is set to 'cri-RI-CQI', the terminal assumes that the precoding matrix indicator (PMI) is an identity matrix and only needs to report one or more of the CSI-RS Resource Indicator (CRI), Rank Indicator (RI), and Channel Quality Indicator (CQI) of the CSI Reference Signal (CSI-RS), without needing to report the PMI.

[0050] For Type 2 series CSI reports carried on the Physical Uplink Shared Channel (PUSCH), they are usually divided into two parts: CSI report part 1 and CSI report part 2. Each part is independently encoded, and the size of CSI report part 2 can be determined by CSI report part 1.

[0051] Currently, the protocol supports sending a single CSI report to the network-side device on an uplink channel resource (e.g., Physical Uplink Control Channel (PUCCH) or PUSCH), or sending multiple CSI reports to the network on an uplink channel resource (PUCCH or PUSCH).

[0052] If the payload size of the CSI report is too large to be handled, the terminal may discard part of the CSI report or the entire CSI report, according to the agreement.

[0053] In the case of a PUCCH associated with a CSI report, the PUCCH resource is selected from multiple PUCCH resources pre-configured by the network-side device to carry the CSI report based on the uplink active bandwidth part (BWP) identifier (ID).

[0054] In the case of a PUSCH associated with a CSI report, the higher-layer signaling CSI report configuration indicates multiple time slot offsets. The network-side device uses Downlink Control Information (DCI) to indicate one of the time slot offsets for the terminal to determine the time domain location of the PUSCH. The DCI further indicates the frequency domain location and other parameters of the PUSCH.

[0055] When multiple CSI reports are carried on a single PUCCH, the multiple CSI reports are typically mapped to a pre-configured PUCCH resource after a collision between the PUCCH resources carrying the CSI reports. When the pre-configured PUCCH resource cannot carry multiple CSI reports, the terminal may discard part of the content of some CSI reports or discard some CSI reports, according to the protocol.

[0056] When multiple CSI reports are carried on a single PUSCH, the network typically triggers multiple aperiodic CSI reports via DCI. Each CSI report is configured with multiple slot offsets. The network-side device indicates one of these slot offsets via DCI. The terminal determines the PUSCH's location based on the maximum value of the multiple slot offsets associated with the various CSI reports, and further determines the PUSCH's frequency domain location and other parameters via DCI indication. When the pre-configured PUSCH resources cannot carry multiple CSI reports, the terminal's behavior, according to the protocol, may be to discard parts of some CSI reports or discard all CSI reports altogether.

[0057] For a CSI report configuration, network-side devices can indicate rank restriction information to the terminal, and the number of transport layers reported by the terminal is limited by the rank restriction indication.

[0058] As the number of transceiver antennas increases, the proportion of high-rank CSI may increase. Existing networks can only allocate one uplink channel resource to one CSI report. If the network-side equipment cannot determine the number of all transport layers acquired by the terminal, the network-side equipment may allocate uplink channel resources based on the maximum rank value. When the actual channel rank value is less than the maximum rank value, it may cause a waste of uplink channel resources, especially in the case of periodic CSI feedback.

[0059] Therefore, in related technologies, the terminal transmits one or more CSI reports acquired to the network-side device on an uplink channel resource according to higher-layer signaling or protocol agreements. If the uplink channel resource is insufficient, the CSI report payload size may become too large, making it impossible to transmit. If the network-side device configures the uplink channel resource based on the maximum CSI report payload size to avoid losing CSI report content, this may result in significant resource waste. Furthermore, the network-side device needs to find a large, continuous uplink channel resource, which may affect the flexibility of resource allocation. To address these issues, this application provides a channel state information acquisition scheme to solve at least one of the aforementioned problems.

[0060] The CSI acquisition scheme provided in this application will be described in detail below with reference to the accompanying drawings, through some embodiments and application scenarios.

[0061] Figure 2 This diagram illustrates a flow chart of a channel state information reporting feedback method according to an embodiment of this application. This method 200 can be executed by a terminal. In other words, the method can be executed by software or hardware installed on the terminal. Figure 2 As shown, the method may include the following steps.

[0062] S210, the terminal sends the first CSI report and the second CSI report to the network-side equipment.

[0063] The first CSI report is associated with at least one first transport layer, and the second CSI report is associated with at least one second transport layer, wherein the at least one first transport layer is not exactly the same as the at least one second transport layer.

[0064] In the embodiments of this application, the first CSI report includes CSI feedback information associated with at least one first transport layer, and the second CSI report includes CSI feedback information associated with at least one second transport layer.

[0065] In this embodiment, the at least one first transport layer associated with the first CSI report may be completely different from the at least one second transport layer associated with the second CSI report. For example, the at least one first transport layer may be any transport layer other than the at least one second transport layer, meaning that the transport layer associated with the first CSI report is the transport margin associated with the second CSI report. Alternatively, the at least one first transport layer associated with the first CSI report and the at least one second transport layer associated with the second CSI report may be partially the same and partially different. For example, the at least one second transport layer associated with the second CSI report may be a subset of the at least one first transport layer associated with the first CSI report.

[0066] In this embodiment, the terminal can perform measurements based on reference signals sent by the network-side device, perform channel estimation based on the measurement results, thereby obtaining CSI feedback information, and then obtaining the first CSI report and the second CSI report.

[0067] In the above technical solution provided in the embodiments of this application, the terminal feeds back a first CSI report and a second CSI report with different associations to the network-side device. This allows the network-side device to allocate uplink channel resources occupied by a CSI report according to the maximum rank value without knowing the actual rank of the channel, thus avoiding the waste of uplink channel resources of the CSI report.

[0068] Figure 3 This diagram illustrates a flowchart of a feedback method for CSI reports provided in an optional embodiment, such as... Figure 3 As shown, the method 300 mainly includes the following steps.

[0069] S310, the terminal obtains the first CSI report configuration and the second CSI report configuration sent by the network-side device, wherein the first CSI report configuration is used to indicate the configuration information of the first CSI report, and the second CSI report configuration is used to indicate the configuration information of the second CSI report or the first CSI report.

[0070] The first CSI report and the second CSI report are the same as those in method 200.

[0071] In this optional embodiment, the second CSI report configuration can be used to indicate the configuration information of the second CSI report. In addition, the second CSI report configuration information can also indicate the configuration information of the first CSI report. It can also be understood that some configuration information of the first CSI report can refer to the second CSI report configuration. Optionally, the configuration information of the first CSI report referencing the second CSI report configuration is not configured in the first CSI report configuration. This can be understood as the network-side device not configuring the configuration information of the first CSI report referencing the second CSI report configuration in the first CSI report configuration. For example, the configuration information of the first CSI report can refer to the configuration information of the second CSI report.

[0072] In this optional embodiment, the first CSI report configuration may be associated with a second CSI report configuration. The first report configuration is associated with a first CSI report containing a first number of transport layers, and the second report configuration is associated with a second CSI report containing a second number of transport layers. The first number of transport layers is a remainder of the second number of transport layers associated with the second CSI report.

[0073] S312, the terminal determines that the at least one first transport layer associated with the first CSI report is a transport layer other than the at least one second transport layer associated with the second CSI report in the target transport layer, wherein the target transport layer is the transport layer associated with the channel obtained by the terminal based on the reference signal associated with the second CSI report configuration.

[0074] S314, the terminal feeds back the first CSI report and the second CSI report to the network-side device.

[0075] In this optional embodiment, the terminal determines a first CSI report configuration, which is associated with a second CSI report configuration. The first CSI report associated with the first report configuration is associated with a first transport layer number. The second CSI report associated with the second report configuration is associated with a second transport layer number. The first transport layer number is a margin of the second transport layer number associated with the second CSI report.

[0076] Regarding the aforementioned margin, one implementation is as follows: After the terminal obtains the channel based on the reference signal associated with the second CSI report configuration, it determines through measurement that the number of transmission layers associated with the channel is N1, or the maximum associated rank value is N1, but the maximum number of transmission layers that can be fed back or the maximum number of ranks that can be fed back associated with the second CSI report configuration is N2 (less than N1). The first number of transmission layers associated with the first CSI report configuration is the number of transmission layers or the rank value remaining after the maximum number of transmission layers that can be fed back or the maximum number of ranks that can be fed back associated with the second CSI report configuration, i.e., N1-N2.

[0077] Another implementation method for the above-mentioned margin is as follows: After the terminal obtains the channel based on the reference signal associated with the second CSI report configuration, it determines by measurement that the number of transmission layers associated with the channel is N1, or the maximum rank value associated is N1, but the number of transmission layers or the number of rank fed back by the second CSI report configured with the second CSI report is N2 (less than N1), and the number of the first transmission layers associated with the first CSI report configuration is the number of transmission layers remaining after the second CSI report is carried or the rank value N1-N2.

[0078] Another implementation of the above-mentioned margin is as follows: After the terminal obtains the channel based on the reference signal associated with the second CSI report configuration, the number of target transmission layers associated with the channel is N1, or the associated target rank value is N1, but the actual number of transmission layers or the actual rank value fed back by the second CSI report associated with the second CSI report configuration is N2 (less than N1), and the number of first transmission layers associated with the first CSI report configuration is the number of transmission layers remaining after the second CSI report is carried or the rank value N1-N2.

[0079] For the first CSI report configuration to be associated with a second CSI report configuration, one optional implementation is that the network-side device can explicitly configure the ID information of a second CSI report configuration in the signaling associated with the first CSI report configuration, and the terminal determines the association between the first CSI report configuration and the second CSI report configuration based on this ID information. Another optional implementation is that the network-side device, when sending the activation signaling of the first CSI report configuration, simultaneously indicates the ID information of a second CSI report configuration, and the terminal determines the association between the first CSI report configuration and the second CSI report configuration based on this ID information. In yet another implementation, when the reference signal associated with the first CSI report configuration is the same as the reference signal of the second CSI report configuration, the terminal determines that the first CSI report configuration is associated with the second CSI report configuration.

[0080] In one optional implementation, the first CSI report associated with the first CSI report configuration can be an aperiodic CSI report, and the second CSI report associated with the second CSI report configuration can be a periodic or semi-continuous CSI report.

[0081] In one optional implementation, the first CSI report configuration may not contain reference signal configuration information, or the reference signal configuration information of the CSI report associated with the first CSI report configuration may be the same as the reference signal configuration information of the second CSI report configuration. In other words, the first CSI report configuration may refer to the reference signal configuration information of the second CSI report configuration.

[0082] In an optional implementation, the first CSI report associated with the first report configuration may further include or be associated with a first precoding matrix indicator (PMI) or a first channel quality indicator (CQI), wherein the first PMI or the first CQI is a PMI or CQI associated with the at least one first transport layer (i.e., transport layer margin). Optionally, the terminal may determine that the first CSI report includes at least one of the first PMI and the first CQI based on the indication or protocol of the network-side device. Optionally, the first PMI or the second CQI in the first CSI report may be obtained based on the CSI Reference Signal Resource Indicator (CRI) in the second CSI report, which can be understood as the CRI associated with the first PMI or the first CQI in the first CSI report being the same as the CRI in the second CSI report. Optionally, the first CSI report does not include a CRI, or the terminal does not feed back a CRI in the first CSI report.

[0083] In an optional implementation, the first CSI report may not include indication information on the number of first transport layers. This indication information is used to indicate the number of first transport layers, and in this case, the number of at least one first transport layer can be determined by the number of at least one second transport layer. That is, the second CSI report includes first indication information, which is used to indicate the number of the at least one first transport layer. This first indication information can also be referred to as a transport layer reserve indication. Through this optional implementation, the transport layer reserve indication in the second CSI report can be used to help network-side devices configure appropriate first CSI report configurations to obtain the PMI or CQI associated with the transport layer reserve.

[0084] In one optional implementation, the first CSI report may include indication information regarding the number of the at least one first transport layer. The number of bits associated with this indication information is related to the maximum number of transport layers (Rmax) configured by the network-side device or agreed upon by the protocol, and the number of the at least one second transport layer (R2). Optionally, the terminal may only indicate the number of transport layers included in the first CSI report among the remaining transport layers (Rmax-R2). For example, the number of bits may be log2(Rmax-R2).

[0085] In an optional implementation, the network-side device can further configure margin limitation information for the aforementioned margin. This limitation information restricts the number of layers that the terminal can report in the first CSI report. For example, the terminal determines that the number of first transport layers associated with the first CSI report is 2, meaning that the number of transport layers remaining after the second CSI report is carried is 2. Further, the network-side device configures a signaling message to indicate the margin limitation information, restricting the terminal to reporting only one transport layer's PMI or CQI in the first CSI report.

[0086] Using the above method 300, when the network-side device cannot determine the number of all transport layers acquired by the terminal, the network-side device can flexibly configure a first CSI report feedback to obtain margin information, avoiding allocating too many resources to the second CSI report at once, thus avoiding resource waste.

[0087] Figure 4 This diagram illustrates a flowchart of a feedback method for CSI reports provided in an optional embodiment, such as... Figure 4 As shown, the method 400 mainly includes the following steps.

[0088] S410, the terminal obtains the third CSI report configuration sent by the network-side device, wherein the third CSI report configuration is associated with multiple periodically sent CSI reports, wherein the first CSI report and the second CSI report are at least one of the multiple periodically sent CSI reports, and the at least one first transport layer is a transport layer other than the at least one second transport layer among all transport layers.

[0089] The first CSI report and the second CSI report are the same as those in method 200.

[0090] In this optional embodiment, the terminal determines a third CSI report configuration, which is associated with multiple periods of CSI report transmission. The multiple periods of CSI report transmission include at least one first transmission, the transport layer associated with the first transmission being a first transport layer, and at least one second transmission, the transport layer associated with the second transmission being a second transport layer. The first transport layer is any transport layer other than the second transport layer.

[0091] Specifically, the configuration of the third CSI report as associated with the sending of multiple CSI reports can be understood as the third CSI report configuration being used to configure CSI reports for multiple periods. Alternatively, it can be understood as the third CSI report configuration as associated with multiple CSI reports for multiple periods, where the first CSI report and the second CSI report are at least one of the multiple CSI reports for each period.

[0092] S412, the terminal feeds back the first CSI report and the second CSI report to the network-side device.

[0093] After the terminal obtains the channel based on the associated reference signal configured by the third CSI report, it acquires and feeds back the second CSI report through measurement.

[0094] The first transport layer refers to all transport layers other than the second transport layer. This can be understood as all transport layers determined by the reference signals associated with the terminal based on the third CSI report configuration. Alternatively, it can be understood as all transport layers associated with the maximum number of transport layers associated with the terminal based on the third CSI report configuration.

[0095] Optionally, the transmission is periodically associated with the first transmission (i.e., the first CSI report) of the at least one first transport layer, and periodically associated with the second transmission (i.e., the second CSI report) of the at least one second transport layer.

[0096] Optionally, the transmission of the first CSI report and the transmission of the second CSI report satisfy at least one of the following:

[0097] 1) The transmission period values ​​are different; for example, the transmission period of the first CSI report is a multiple of the transmission period of the second CSI report.

[0098] 2) The transmitted time slot offset values ​​are different;

[0099] 3) The transmitted time slot offset values ​​are the same;

[0100] 4) The associated uplink channel resources are of different formats;

[0101] In practical applications, 1) to 4) above may include one or more of them. For example, the time slot offset values ​​for sending the first CSI report and sending the second CSI report may be the same, but the sending period values ​​may be different. Alternatively, the time slot offset values ​​for sending the first CSI report and sending the second CSI report may be different, and the sending period values ​​may also be different.

[0102] Optionally, the first transmitted CSI report associated with the second transmitted CSI report shares the reference signal associated with the third CSI report configuration.

[0103] Optionally, the first transmission is associated with a CSI report (i.e., the first CSI report), and the first CSI report does not include a CRI indication. This can be understood as the first transmission being associated with a CSI report (i.e., the first CSI report), and the CRI indication associated with the CSI report is the CRI indication included in a second transmission associated with a CSI report (i.e., the second CSI report).

[0104] Optionally, the first transmission is associated with a CSI report (i.e., the first CSI report), which includes a PMI or a CQI, and the transport layer associated with the PMI or CQI is any transport layer other than the second transport layer.

[0105] For example, a terminal receives a third CSI report configuration activated or sent by a network-side device. Based on this third report configuration, the terminal determines two CSI reports to be sent periodically (CSI Report 1 and CSI Report 2). The terminal determines that the sending period for CSI Report 1 is 5ms and the sending period for CSI Report 2 is 50ms. Based on protocol agreements or network signaling instructions, the terminal determines that CSI Report 1 carries a maximum of 4 transport layers and CSI Report 2 carries a maximum of 4 transport layers. Furthermore, based on protocol agreements or network signaling instructions, the terminal determines that the transport layer associated with CSI Report 2 is any transport layer other than the one associated with CSI Report 1. If the terminal determines that the total number of transport layers is 6 based on the reference signal associated with the third CSI report configuration, then the terminal carries the CRI, PMI, CQI, or RI corresponding to the first 4 transport layers in CSI Report 1, and carries the PMI, CQI, or RI corresponding to the remaining 2 transport layers in CSI Report 2. If the terminal determines that the number of all transport layers is 3 based on the reference signal associated with the third CSI report, then the terminal carries the CRI or PMI or CQI or RI corresponding to the first 3 transport layers in CSI report 1, and does not carry any information in CSI report 2.

[0106] Optionally, the first CSI report and the second CSI report are associated with the same time slot offset, that is, at a certain moment, the terminal simultaneously feeds back the first CSI report and the second CSI report.

[0107] Optionally, the first CSI report and the second CSI report are associated with the same time slot offset, but the first CSI report and the second CSI report are sent with different period values.

[0108] Optionally, the time slot offsets associated with the first CSI report and the second CSI report are different. That is, the network can determine whether the first CSI report is an empty CSI report based on the second CSI report. If it is an empty CSI report, the network can optionally use the time-frequency resources associated with the first CSI report for other purposes. For example, the terminal determines, based on protocol agreement or network signaling indication, that CSI report 1 carries a maximum of 4 transport layers and CSI report 2 carries a maximum of 4 transport layers, and the terminal determines, based on protocol agreement or network signaling indication, that the transport layer associated with CSI report 2 is a transport layer other than the transport layer associated with CSI report 1. If the terminal determines that the number of all transport layers is 3 based on the reference signal associated with the third CSI report configuration, then the terminal carries the CRI, PMI, CQI, or RI corresponding to the first 3 transport layers in CSI report 1, and does not carry any information in CSI report 2, which is an empty CSI report. The network can schedule uplink transmissions of other users or feedback of other types of CSI reports at the time-frequency location associated with CSI report 2.

[0109] Optionally, the second CSI report may carry transport layer number indication information, which indicates the number of transport layers that can be carried in the first CSI report. Alternatively, the network-side device may indicate the number of transport layers that can be carried in the first CSI report via signaling. For example, the network-side device may configure signaling to restrict the terminal to only reporting the PMI or CQI of one transport layer in the first CSI report.

[0110] Optionally, the network signaling configuration or protocol stipulates that when the number of transport layers associated with the second CSI report exceeds a certain value, the terminal will carry the remaining transport layer associated PMI or CQI in the first CSI report and feed it back to the network-side device. The specific value can be stipulated by the protocol or configured in the network signaling.

[0111] Through the above embodiments, when the network-side device cannot determine the number of all transport layers acquired by the terminal, the network-side device can flexibly configure a third CSI report configuration associated with multiple CSI reports sent in different periods to acquire all transport layer associated CSIs, avoiding the waste of resources caused by allocating too many resources to the CSI report of the second sent associated period at once.

[0112] Figure 5 This diagram illustrates a flowchart of a feedback method for CSI reports provided in an optional embodiment, such as... Figure 5 As shown, the method 500 mainly includes the following steps.

[0113] S510, the terminal obtains the fourth CSI report configuration sent by the network-side device, wherein the fourth CSI report configuration is associated with multiple CSI reports sent, the first CSI report and the second CSI report are at least one of the multiple CSI reports sent, and the at least one first transport layer is a transport layer other than the at least one second transport layer among all transport layers.

[0114] The first CSI report and the second CSI report are the same as the first CSI report and the second CSI report in method 200.

[0115] S512, the terminal sends the first CSI report and the second CSI report back to the network-side equipment.

[0116] In this optional embodiment, the terminal determines a fourth CSI report configuration, which is associated with multiple CSI report transmissions. Among the multiple CSI report transmissions, at least one third transmission (the CSI report transmitted in the third transmission is the first CSI report) is associated with a first transport layer, and at least one fourth transmission (the CSI report transmitted in the fourth transmission is the second CSI report) is associated with a second transport layer. The first transport layer is any transport layer other than the second transport layer.

[0117] Wherein, the at least one first transport layer refers to all transport layers other than the at least one second transport layer. This can be all transport layers determined by the reference signal associated with the terminal based on the fourth CSI report configuration. Alternatively, it can be all transport layers associated with the maximum number of transport layers associated with the terminal based on the fourth CSI report configuration.

[0118] In one optional implementation, the fourth CSI report is configured to be associated with multiple uplink transmission channel resources, and the first CSI report and the second CSI report are respectively associated with at least one of the multiple uplink transmission channel resources.

[0119] In one optional implementation, the second CSI report is sent before the first CSI report. That is, the third CSI report transmission in the multiple CSI report transmissions is later than the fourth CSI report transmission. After receiving the fourth transmission, the network-side device can determine the CSI report content or CSI payload size of the third transmission bearer based on the CSI report content carried by the fourth transmission. For example, the CSI report content of the fourth transmission bearer includes the number of transport layers associated with the PMI of the third transmission bearer, and the payload size of the third CSI report is determined based on the number of transport layers.

[0120] In one optional implementation, the transmission interval between the first CSI report and the second CSI report satisfies at least one of the following:

[0121] 1) The transmission interval between the first CSI report and the second CSI report is determined according to the network-side device configuration; that is, the network-side device can configure the transmission interval between the first CSI report and the second CSI report.

[0122] 2) The transmission interval between the first CSI report and the second CSI report does not exceed a predetermined value, which includes at least one of the following: a value agreed upon in the protocol, or the capability feedback value of the terminal.

[0123] In one optional implementation, the end time of the CSI processing of the terminal can be the last symbol associated with the transmission of the first CSI report or the symbol following the last symbol.

[0124] Optionally, the second CSI report may carry transport layer number indication information to indicate the number of transport layers that can be carried in the first CSI report. Alternatively, the network-side device may also indicate the number of transport layers that can be carried in the first CSI report via signaling. For example, the network-side device may configure signaling to restrict the terminal to only reporting the PMI or CQI of one transport layer in the first CSI report.

[0125] Optionally, the network signaling configuration or protocol stipulates that when the number of transport layers in the fourth CSI report (i.e., the second CSI report) exceeds a certain value, the terminal will carry the remaining transport layer-associated PMI or CQI in the third CSI report (i.e., the first CSI report) and feed it back to the network-side device. The specific value can be stipulated by the protocol or configured by the network signaling.

[0126] Optionally, when the number of transport layers in the fourth CSI report (i.e., the second CSI report) is less than or equal to a specific value, the terminal does not carry any information in the third CSI report (i.e., the first CSI report).

[0127] Optionally, the terminal may carry any information in the third CSI report (i.e., the first CSI report), or the CSI may be determined based on the network signaling configuration. For example, the network-side device may instruct the terminal via Downlink Control Information (DCI) to carry transport layer associated PMI or CQI that is not carried in the fourth CSI report (i.e., the second CSI report) in the third CSI report (i.e., the first CSI report).

[0128] Using the above method 500, when the network cannot determine the number of all transport layers acquired by the terminal, the network can flexibly configure a fourth CSI report configuration associated with multiple transmissions or multiple uplink channel resources, which can then be used to acquire all transport layer associated CSIs, thus avoiding the waste of resources caused by allocating too many resources to the fourth transmission associated CSI report at once.

[0129] Figure 6 This diagram illustrates a flowchart of a feedback method for CSI reports provided in an optional embodiment, such as... Figure 6 As shown, the method 600 mainly includes the following steps.

[0130] S610, the terminal obtains the fifth CSI report configuration sent by the network-side device, wherein the fifth CSI report configuration is associated with a periodic CSI report, the first CSI report and the second CSI report are at least one transmission of the periodic CSI report, and the at least one second transport layer is a portion of the at least one first transport layer.

[0131] In this optional embodiment, the terminal determines a fifth CSI report configuration, which is associated with one cycle of CSI report transmission. The one cycle of CSI report transmission includes at least one fifth CSI report (i.e., the aforementioned first CSI report) associated with a first transport layer, and at least one sixth CSI report (i.e., the aforementioned second CSI report) associated with a second transport layer. The second transport layer is a subset of the first transport layer.

[0132] Specifically, the configuration of the fifth CSI report associated with the sending of CSI reports for one period can be understood as the fifth CSI report configuration being used to configure CSI reports for one period. Alternatively, it can be understood as the fifth CSI report configuration being associated with CSI reports for one period.

[0133] For the at least one second transport layer to be a part of the at least one first transport layer, it can be understood that the at least one first transport layer includes at least the at least one second transport layer, or the number of transport layers associated with the at least one first transport layer is greater than or equal to the number of transport layers associated with the at least one second transport layer.

[0134] Optionally, the period value associated with the transmission of the first CSI report may be different from the period value associated with the transmission of the second CSI report. For example, the transmission period of the first CSI report may be a multiple of the transmission period of the second CSI report.

[0135] Optionally, the uplink channel resources associated with the transmission of the first CSI report are different from those associated with the transmission of the second CSI report. For example, the time-frequency resources occupied by the uplink channel resources associated with the transmission of the first CSI report are greater than those associated with the transmission of the second CSI report.

[0136] Optionally, the bit rate associated with the transmission of the first CSI report may be different from the bit rate associated with the transmission of the second CSI report. For example, the bit rate associated with the transmission of the first CSI report may be higher than the bit rate associated with the transmission of the second CSI report.

[0137] S612, the terminal sends the first CSI report and the second CSI report to the network-side equipment.

[0138] In one optional implementation, the first CSI report is sent when the transmission of the first CSI report and the transmission of the second CSI report occur at the same uplink channel resource transmission occasion. For example, when the fifth and sixth transmissions occur at the same uplink channel resource transmission occasion, the terminal only sends the fifth transmission.

[0139] In one optional implementation, the first CSI report is sent if the transmission of the first CSI report and the transmission of the second CSI report occur in the same uplink time slot. For example, when the fifth and sixth transmissions occur in the same uplink time slot, the terminal only sends the fifth transmission.

[0140] In one optional implementation, the first CSI report is sent during the first sending cycle of the CSI report associated with the fifth CSI report configuration.

[0141] In one alternative implementation, the second CSI report is sent during the first sending cycle of the CSI report associated with the fifth CSI report configuration.

[0142] For example, the first CSI report is sent every 50ms, and the second CSI report is sent every 5ms. This means that five CSI reports are configured to be sent in a single cycle. Every 5ms, the terminal sends a CSI report associated with the first CSI report to the network-side device, and every 50ms, it sends a CSI report associated with the second CSI report to the network-side device. The first CSI report is associated with 8 transport layers, and the second CSI report is associated with 4 transport layers. When the first and second CSI reports overlap in the time domain, only the first CSI report is sent. Optionally, the first transmission may send only the first or second CSI report.

[0143] Optionally, during the first transmission, the protocol or network signaling instructs the terminal to send either the first CSI report or the second CSI report.

[0144] Optionally, the uplink channel resources associated with the first CSI report and the second CSI report can be different. For example, the time-frequency resources occupied by the uplink channel resources associated with the transmission of the first CSI report (i.e., the fifth transmission) are greater than the time-frequency resources occupied by the uplink channel resources associated with the transmission of the second CSI report (i.e., the sixth transmission). Another example is that the code rate associated with the uplink channel resources associated with the transmission of the first CSI report (i.e., the fifth transmission) is greater than the code rate associated with the uplink channel resources associated with the transmission of the second CSI report (i.e., the sixth transmission).

[0145] Optionally, the number of bits associated with the transport layer number indication information (e.g., RI indication) in the transmission of the first CSI report (i.e., the fifth transmission) may differ from the number of bits associated with the transport layer number indication information in the transmission of the second CSI report (i.e., the sixth transmission). Optionally, the network-side device may indicate the number of transport layers that can be carried in the transmission of the first CSI report (i.e., the fifth transmission) via signaling. For example, the network-side device may configure a signaling to restrict the terminal to only being able to feed back one more transport layer's PMI in the transmission of the first CSI report (i.e., the fifth transmission) compared to the transmission of the second CSI report (i.e., the first transmission).

[0146] Using the above method 600, when the network-side device cannot determine the number of all transport layers acquired by the terminal, the network-side device can flexibly configure a fifth CSI report configuration associated with a CSI report sent in one cycle to acquire CSIs associated with all transport layers. In the transmission of the cycle, at least one CSI report transmission allows the number of transport layers associated to be greater than the number of other CSI reports, thereby avoiding the allocation of too many resources at once and causing resource waste.

[0147] Figure 7This illustration shows another flowchart of the feedback method for channel state information reporting provided in an embodiment of this application, such as... Figure 7 As shown, the method 700 mainly includes the following steps.

[0148] S710: The terminal obtains the third CSI report based on the reference signal associated with the sixth CSI report configuration.

[0149] S712, the terminal feeds back the third CSI report to the network-side device, wherein the third CSI report includes third indication information, which is used to indicate at least one of the following: whether the third CSI report is associated with all transport layers, and the number of transport layers that are not associated with the third CSI report.

[0150] In this embodiment, the terminal determines a sixth CSI report configuration. Based on the sixth CSI report configuration, the terminal determines transport layer margin. The terminal can send third indication information to the network-side device to indicate whether the third CSI report is associated with at least one of the number of all transport layers and the number of transport layers that the terminal has not reported. The third indication information can also indicate the number of transport layers that the terminal has reported. That is, the terminal can determine, based on the sixth CSI report configuration, that the sixth CSI report includes an indication of transport layer margin (i.e., the third indication information), which is used to indicate the number of transport layers that the terminal can still report.

[0151] For example, after the terminal obtains a channel based on the associated reference signal configured in the sixth CSI report, it determines through measurement that the number of transport layers associated with the channel is N1, or the maximum associated rank value is N1, but the maximum number of transport layers that can be fed back or the maximum number of ranks that can be fed back configured in the sixth CSI report is N2 (less than N1), and the transport layer margin is N1-N2. The terminal may include a third indication information in the third CSI report, the third indication information indicating at least one of the following: the third CSI report does not associate all transport layers, or the number of transport layers not associated in the third CSI report is (N1-N2).

[0152] Optionally, the sixth CSI report configuration may include fourth indication information, which is used to instruct the terminal to provide feedback on the third indication information. That is, the sixth CSI report configuration may include configuration information instructing the terminal to provide feedback on transport layer margins. For example, the sixth CSI report configuration may include fourth indication information to instruct the terminal to provide feedback on transport layer margins. Or, for another example, the sixth CSI report configuration may include fourth indication information to instruct the terminal to provide feedback on transport layer margins when the transport layer margin is greater than a specific value.

[0153] Optionally, the bit length of the third indication information associated with the transport layer margin depends on the difference between the maximum number of transport layers supported by the terminal and the maximum number of transport layers associated with the sixth CSI report configuration. For example, if the maximum allowed number of transport layers associated with the sixth CSI report configuration is rank=4, and the maximum number of transport layers supported by the terminal is 6, then when the actual number of transport layers determined by the terminal is greater than 4, the terminal uses 1 bit to feedback the transport layer margin, where 0 represents 1 transport layer and 1 represents 2 transport layers. Alternatively, the terminal uses 2 bits to feedback the transport layer margin, where 00 represents 0 transport layers, 01 represents 1 transport layer, 10 represents 2 transport layers, and 11 is a reserved codepoint.

[0154] Optionally, the bit length of the third indication information is 1, which is used to indicate whether the third CSI report is associated with all transport layers. For example, if the maximum allowed number of transport layers associated with the sixth CSI report is rank=4, then when the number of transport layers actually determined by the terminal is greater than 4, the terminal feeds back the third indication as 1 to the network-side device, that is, the number of transport layers actually measured by the terminal is greater than 4.

[0155] Optionally, when the third CSI report is associated with two CSI report parts, the third indication information can be located in CSI report part 2. When the rank value indicated by the rank indicator (RI) in CSI report part 1 is equal to the maximum allowed rank value of the sixth CSI report configuration indication, the third CSI report part 2 contains a field of third indication information (i.e., transport layer margin indication); otherwise, the CSI report part 2 does not contain a field of transport layer margin indication.

[0156] Optionally, if the third indication information only indicates whether the third CSI report is associated with all transport layers, the bit length of the third indication information can be 1 bit, and the third indication information can be located in the first part of the third CSI report.

[0157] Using the above method 700, when the network-side device cannot determine the number of all transport layers acquired by the terminal, the network-side device can flexibly configure a sixth CSI report to acquire transport layer margins. This can guide the network-side device to configure the channel resources associated with the CSI report, avoiding the allocation of too many resources at once and causing resource waste.

[0158] Optionally, the associations described in the embodiments of this application are not limited to one of the following interpretations:

[0159] A being associated with B means that A is B;

[0160] A being associated with B means that B can be obtained through A.

[0161] A being related to B means that B can be determined through A.

[0162] Based on the same technical concept, this application also provides a method for obtaining CSI.

[0163] It should be noted that the following embodiments only describe the operation of the network-side device. For other matters not covered, please refer to the relevant descriptions of methods 200 to 700 above.

[0164] Figure 8 This diagram illustrates a flowchart of a CSI acquisition method provided in an embodiment of this application. This method 800 can be executed by a network-side device. In other words, the method can be executed by software or hardware installed on the network-side device. Figure 8 As shown, the method mainly includes the following steps.

[0165] S810, the network-side equipment receives the first CSI report and the second CSI report fed back by the terminal.

[0166] Wherein, the first CSI report is associated with at least one first transport layer, and the second CSI report is associated with at least one second transport layer, wherein the at least one first transport layer and the at least one second transport layer are not exactly the same;

[0167] S812, the network-side device obtains CSI based on the first CSI report and the second CSI report.

[0168] In this embodiment of the application, the network-side device can configure uplink channel resources for the first CSI report and the second CSI report. Since the transport layers associated with the first CSI report and the second CSI report are not exactly the same, the network-side device can configure uplink channel resources of a corresponding size based on the number of transport layers associated with the first CSI report and the second CSI report, thereby avoiding the waste of uplink channel resources.

[0169] In an optional implementation, before the network-side device receives the first CSI report and the second CSI report fed back by the terminal, the method further includes:

[0170] The network-side device sends a first CSI report configuration and a second CSI report configuration to the terminal. The first CSI report configuration is used to indicate the configuration information of the first CSI report, and the second CSI report configuration is used to indicate the configuration information of the second CSI report or the first CSI report. The first CSI report configuration is associated with the at least one first transport layer, and the second CSI report configuration is associated with the at least one second transport layer.

[0171] In the above optional implementations, if the network-side device cannot determine the number of all transport layers acquired by the terminal, the network-side device can flexibly configure a first CSI report feedback to obtain margin information, avoiding allocating too many resources to the second CSI report at once, thus avoiding resource waste.

[0172] In one optional implementation, the first CSI report associated with the first CSI report configuration is an aperiodic CSI report, and the second CSI report associated with the second CSI report configuration is a periodic or semi-persistent CSI report.

[0173] In an alternative implementation, the method may further include the following steps:

[0174] Step 1, the network-side device obtains first indication information from the second CSI report, wherein the first indication information is used to indicate the number of the at least one first transport layer;

[0175] Step 2: The network-side device determines the number of at least one first transport layer associated with the first CSI report based on the first indication information.

[0176] In an optional implementation, the network-side device can determine the number of at least one first transport layer associated with the first CSI report based on the first indication information in the second CSI report, and then configure an appropriate amount of uplink channel resources for the first CSI report to avoid wasting resources.

[0177] In an optional implementation, before the network-side device receives the first CSI report and the second CSI report fed back by the terminal, the method further includes:

[0178] The network-side device sends a third CSI report configuration to the terminal, wherein the third CSI report configuration is associated with multiple periodically sent CSI reports, wherein the first CSI report and the second CSI report are at least one of the multiple periodically sent CSI reports, and the at least one first transport layer is a transport layer other than the at least one second transport layer among all transport layers.

[0179] In the above optional implementation methods, when the network-side device cannot determine the number of all transport layers acquired by the terminal, the network-side device can flexibly configure a third CSI report configuration associated with multiple CSI reports sent in different periods to acquire all transport layer associated CSIs, avoiding the waste of resources caused by allocating too many resources to the CSI reports of the period associated with the second CSI report at once.

[0180] In an optional implementation, before the network-side device receives the first CSI report and the second CSI report fed back by the terminal, the method further includes:

[0181] The network-side device sends a fourth CSI report configuration to the terminal. The fourth CSI report configuration is associated with multiple CSI reports. The first CSI report and the second CSI report are at least one of the multiple CSI reports sent. The at least one first transport layer is a transport layer other than the at least one second transport layer among all transport layers.

[0182] With the above optional implementation methods, when the network-side device cannot determine the number of all transport layers acquired by the terminal, the network-side device can flexibly configure a fourth CSI report configuration associated with multiple transmissions or multiple uplink channel resources, which can be further used to acquire all transport layer associated CSIs, avoiding the waste of resources caused by allocating too many resources to the CSI report associated with the second CSI report at once.

[0183] In one optional implementation, the fourth CSI report is configured to be associated with multiple uplink transmission channel resources, and the first CSI report and the second CSI report are respectively associated with at least one of the multiple uplink transmission channel resources.

[0184] In one alternative implementation, the second CSI report is sent earlier than the first CSI report.

[0185] In an optional implementation, the method further includes: the network-side device configuring the transmission interval between the first CSI report and the second CSI report for the terminal.

[0186] In an optional implementation, before the network-side device receives the first CSI report and the second CSI report fed back by the terminal, the method further includes:

[0187] The network-side device sends a fifth CSI report configuration to the terminal, wherein the fifth CSI report configuration is associated with a periodic CSI report, the first CSI report and the second CSI report are at least one transmission of the periodic CSI report, and the at least one second transport layer is a portion of the at least one first transport layer.

[0188] With the above optional implementation, when the network-side device cannot determine the number of all transport layers acquired by the terminal, the network-side device can flexibly configure a fifth CSI report configuration associated with a periodically sent CSI report to acquire CSIs associated with all transport layers. In the periodic transmission, at least one CSI report transmission allows the number of transport layers associated to be greater than the number of other CSI report transmissions, thereby avoiding the allocation of too many resources at once and causing resource waste.

[0189] Figure 9 This illustration shows another flowchart of the CSI acquisition method provided in an embodiment of this application, which can be executed by a network-side device. In other words, the method can be executed by software or hardware installed on the network-side device. Figure 9 As shown, the method mainly includes the following steps.

[0190] S910, the network-side device sends the sixth CSI report configuration to the terminal.

[0191] In this embodiment, the network-side device can be configured to send a third CSI report back to the terminal via a sixth CSI report configuration.

[0192] The sixth CSI report configuration may include configuration information of the reference signal, and may also include uplink channel resource information and feedback period fed back by the third CSI report.

[0193] In an optional implementation, the sixth CSI report configuration may further include fourth indication information, which is used to instruct the terminal to provide feedback on the third indication information. By configuring the fourth indication information, the network-side device can instruct the terminal to provide transport layer availability information, thereby determining whether the third CSI report provided by the terminal is associated with all transport layers and the number of unassociated transport layers in the third CSI report, at least one of these can be determined.

[0194] S912, the network-side device receives a third CSI report from the terminal based on the sixth CSI report configuration. The third CSI report includes third indication information, which indicates at least one of the following: whether the third CSI report is associated with all transport layers, and the number of transport layers not associated with the third CSI report.

[0195] Based on the third indication information fed back by the terminal, the network-side device can know at least one of the number of transport layers associated with the third CSI report and the number of transport layers not associated with the third CSI report. Thus, it can configure the uplink channel resources associated with the CSI report based on the third indication information, avoiding the allocation of too many resources at once and causing resource waste.

[0196] S914, the network-side device obtains CSI based on the third CSI report.

[0197] In this embodiment of the application, the third CSI report may include channel status information such as PMI and CQI of the transport layer associated with the third CSI report. The network-side device can obtain the CSI based on the third CSI report.

[0198] In one alternative implementation, the third indication information is located in the second part of the third CSI report, wherein the second part is a portion of the third CSI report other than the first part, and the size of the second part can be determined based on the report content included in the first part.

[0199] In an alternative implementation, if the third indication information indicates whether the third CSI report is associated with all transport layers, the third indication information is located in the first part of the third CSI report.

[0200] The CSI report feedback method provided in this application can be executed by a CSI report feedback device. This application uses an example of a CSI report feedback device executing the CSI report feedback method to illustrate the CSI report feedback device provided in this application. The CSI acquisition method provided in this application can also be executed by a CSI acquisition device. This application uses an example of a CSI acquisition device executing the CSI acquisition method to illustrate the CSI acquisition device provided in this application.

[0201] This application provides a CSI report feedback device or CSI acquisition device. As an example, the CSI report feedback device or CSI acquisition device can be a communication device or a component in a communication device, such as a chip. The communication device can be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal can be, but is not limited to, the type of terminal 11 listed above, and the network-side device can be, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0202] The CSI report feedback device or CSI acquisition device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0203] For details, see Figure 10 When the CSI report feedback device is a terminal or a component in a terminal, the CSI report feedback device 1000 includes a sending module 1001 for feeding back a first CSI report and a second CSI report to a network-side device; wherein the first CSI report is associated with at least one first transport layer, the second CSI report is associated with at least one second transport layer, and the at least one first transport layer is not completely identical to the at least one second transport layer.

[0204] In one alternative implementation, such as Figure 10 As shown, the device may further include: a receiving module 1002 for one of the following:

[0205] The system acquires a first CSI report configuration and a second CSI report configuration sent by a network-side device. The first CSI report configuration is used to indicate the configuration information of the first CSI report, and the second CSI report configuration is used to indicate the configuration information of the second CSI report or the first CSI report. The at least one first transport layer is a transport layer in the target transport layer other than the at least one second transport layer associated with the second CSI report. The target transport layer is the transport layer associated with the channel obtained by the terminal based on the reference signal associated with the second CSI report configuration.

[0206] Obtain the third CSI report configuration sent by the network-side device, wherein the third CSI report configuration is associated with multiple periodically sent CSI reports, wherein the first CSI report and the second CSI report are at least one of the multiple periodically sent CSI reports, and the at least one first transport layer is a transport layer other than the at least one second transport layer among all transport layers;

[0207] The fourth CSI report configuration sent by the network-side device is obtained, wherein the fourth CSI report configuration is associated with multiple CSI reports sent, the first CSI report and the second CSI report are at least one of the multiple CSI reports sent, and the at least one first transport layer is a transport layer other than the at least one second transport layer among all transport layers.

[0208] The fifth CSI report configuration sent by the network-side device is obtained, wherein the fifth CSI report configuration is associated with a periodic CSI report, the first CSI report and the second CSI report are at least one transmission of the periodic CSI report, and the at least one second transport layer is a portion of the at least one first transport layer.

[0209] In one optional implementation, the first CSI report associated with the first CSI report configuration is an aperiodic CSI report, and the second CSI report associated with the second CSI report configuration is a periodic or semi-persistent CSI report.

[0210] In an optional implementation, the first CSI report may further include a first precoding matrix indicator (PMI) or a first channel quality indicator (CQI), the first PMI or the first CQI being obtained based on the CSI reference signal resource indicator (CRI) in the second CSI report.

[0211] In one alternative implementation, the second CSI report includes first indication information, which indicates the number of the at least one first transport layer.

[0212] In one optional implementation, the transmission of the first CSI report and the transmission of the second CSI report satisfy at least one of the following:

[0213] The transmission period values ​​are different;

[0214] The transmitted time slot offset values ​​are different;

[0215] The transmitted time slot offset values ​​are the same;

[0216] The associated uplink channel resources are transmitted in different formats.

[0217] In one alternative implementation, the first CSI report does not include a CRI indication.

[0218] In one optional implementation, the fourth CSI report is configured to be associated with multiple uplink transmission channel resources, and the first CSI report and the second CSI report are respectively associated with at least one of the multiple uplink transmission channel resources.

[0219] In one alternative implementation, the second CSI report is sent earlier than the first CSI report.

[0220] In one optional implementation, the transmission interval between the first CSI report and the second CSI report satisfies at least one of the following:

[0221] The transmission interval between the first CSI report and the second CSI report is determined according to the network-side device configuration;

[0222] The interval between the transmission of the first CSI report and the second CSI report does not exceed a predetermined value, which includes at least one of the following: a value agreed upon in the protocol, or the capability feedback value of the terminal.

[0223] In one optional implementation, the end time of CSI processing is the last symbol associated with the transmission of the first CSI report or the next symbol after that last symbol.

[0224] In one optional implementation, the transmission of the first CSI report and the transmission of the second CSI report satisfy at least one of the following:

[0225] The period value associated with the transmission of the first CSI report is different from the period value associated with the transmission of the second CSI report;

[0226] The uplink channel resources associated with the transmission of the first CSI report are different from the uplink channel resources associated with the transmission of the second CSI report;

[0227] The first CSI report is sent when the transmission of the first CSI report and the transmission of the second CSI report occur at the same uplink channel resource timing.

[0228] If the transmission of the first CSI report and the transmission of the second CSI report occur in the same uplink time slot, the first CSI report is transmitted.

[0229] In the first sending cycle of the CSI report associated with the fifth CSI report configuration, the first CSI report is sent;

[0230] In the first sending cycle of the CSI report associated with the fifth CSI report configuration, the second CSI report is sent.

[0231] For details, see Figure 11 When the CSI report feedback device is a terminal or a component within a terminal, the CSI report feedback device 1100 includes: a receiving module 1101, configured to acquire a third CSI report based on a reference signal associated with a sixth CSI report configuration; and a sending module 1102, configured to feed back the third CSI report to a network-side device, wherein the third CSI report includes third indication information, which indicates at least one of the following: whether the third CSI report is associated with all transport layers, and the number of transport layers not associated with the third CSI report.

[0232] In one optional implementation, the sixth CSI report configuration includes fourth indication information, which is used to instruct the terminal to provide feedback on the third indication information.

[0233] In one alternative implementation, the third indication information is located in the second part of the third CSI report.

[0234] In one alternative implementation, if the rank value indicated by the rank indicator in the first part of the third CSI report is equal to the maximum allowed rank value of the sixth CSI report configuration indicator, the second part of the third CSI report includes a field associated with the third indicator information.

[0235] In an alternative implementation, if the third indication information indicates whether the third CSI report is associated with all transport layers, the third indication information is located in the first part of the third CSI report.

[0236] See Figure 12 When the CSI acquisition device is a network-side device or a component of a network-side device, the CSI acquisition device 1200 includes: a receiving module 1201, configured to receive a first CSI report and a second CSI report fed back by a terminal, wherein the first CSI report is associated with at least one first transport layer, and the second CSI report is associated with at least one second transport layer, and the at least one first transport layer is not completely identical to the at least one second transport layer; and a processing module 1202, configured to acquire CSI based on the first CSI report and the second CSI report.

[0237] In one alternative implementation, such as Figure 12 As shown, the device may further include: a transmitting module 1203, used for one of the following:

[0238] Send a first CSI report configuration and a second CSI report configuration to the terminal, wherein the first CSI report configuration is used to indicate the configuration information of the first CSI report, and the second CSI report configuration is used to indicate the configuration information of the second CSI report or the first CSI report. The first CSI report configuration is associated with the at least one first transport layer, and the second CSI report configuration is associated with the at least one second transport layer.

[0239] Send a third CSI report configuration to the terminal, wherein the third CSI report configuration is associated with multiple periodically sent CSI reports, wherein the first CSI report and the second CSI report are at least one of the multiple periodically sent CSI reports, and the at least one first transport layer is a transport layer other than the at least one second transport layer among all transport layers;

[0240] Send a fourth CSI report configuration to the terminal. The fourth CSI report configuration is associated with multiple CSI reports. The first CSI report and the second CSI report are at least one of the multiple CSI reports sent. The at least one first transport layer is a transport layer other than the at least one second transport layer among all transport layers.

[0241] Send a fifth CSI report configuration to the terminal, wherein the fifth CSI report configuration is associated with a periodic CSI report, the first CSI report and the second CSI report are at least one transmission of the periodic CSI report, and the at least one second transport layer is a portion of the at least one first transport layer.

[0242] In one optional implementation, the first CSI report associated with the first CSI report configuration is an aperiodic CSI report, and the second CSI report associated with the second CSI report configuration is a periodic or semi-persistent CSI report.

[0243] In an alternative implementation, the processing module 1202 is further configured to:

[0244] Obtain first indication information from the second CSI report, wherein the first indication information is used to indicate the number of the at least one first transport layer;

[0245] Based on the first indication information, the number of the at least one first transport layer associated with the first CSI report is determined.

[0246] In one optional implementation, the fourth CSI report is configured to be associated with multiple uplink transmission channel resources, and the first CSI report and the second CSI report are respectively associated with at least one of the multiple uplink transmission channel resources.

[0247] In one alternative implementation, the second CSI report is sent earlier than the first CSI report.

[0248] In an optional implementation, the sending module 1203 is further configured to configure the sending interval between the first CSI report and the second CSI report for the terminal.

[0249] See Figure 13 When the CSI acquisition device is a network-side device or a component of a network-side device, the CSI acquisition device 1300 includes: a sending module 1301, used to send a sixth CSI report configuration to a terminal; a receiving module 1302, used to receive a third CSI report fed back by the terminal based on the sixth CSI report configuration, wherein the third CSI report includes third indication information, the third indication information being used to indicate at least one of the following: whether the third CSI report is associated with all transport layers, the number of transport layers not associated with the third CSI report; and a processing module 1303, used to acquire CSI based on the third CSI report.

[0250] In one optional implementation, the sixth CSI report configuration includes fourth indication information, which is used to instruct the terminal to provide feedback on the third indication information.

[0251] In one alternative implementation, the third indication information is located in the second part of the third CSI report.

[0252] In an alternative implementation, if the third indication information indicates whether the third CSI report is associated with all transport layers, the third indication information is located in the first part of the third CSI report.

[0253] The CSI report feedback device or CSI acquisition device provided in this application embodiment can achieve Figures 2 to 8 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0254] like Figure 14As shown in the illustration, this application also provides a communication device 1400, including a processor 1401 and a memory 1402. The memory 1402 stores a program or instructions that can run on the processor 1401. For example, when the communication device 1400 is a terminal, the program or instructions executed by the processor 1401 implement the various steps of the above-described CSI report feedback method embodiment and achieve the same technical effect. When the communication device 1400 is a network-side device, the program or instructions executed by the processor 1401 implement the various steps of the above-described CSI acquisition method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0255] This application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps in the embodiments of methods 200 to 700 described above. This terminal embodiment corresponds to the terminal-side method embodiments described above; all implementation processes and methods of the above method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal can be... Figure 10 or Figure 11 The CSI report feedback device shown. Specifically, Figure 15 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0256] The terminal 1500 includes, but is not limited to, at least some of the following components: radio frequency unit 1501, network module 1502, audio output unit 1503, input unit 1504, sensor 1505, display unit 1506, user input unit 1507, interface unit 1508, memory 1509, and processor 1510.

[0257] Those skilled in the art will understand that the terminal 1500 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1510 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 15 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0258] It should be understood that, in this embodiment, the input unit 1504 may include a graphics processor 15041 and a microphone 15042. The graphics processor 15041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1506 may include a display panel 15061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1507 includes a touch panel 15071 and at least one of other input devices 15072. The touch panel 15071 is also called a touch screen. The touch panel 15071 may include a touch detection device and a touch controller. Other input devices 15072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0259] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 1501 can transmit it to the processor 1510 for processing; in addition, the radio frequency unit 1501 can send uplink data to the network-side device. Typically, the radio frequency unit 1501 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0260] The memory 1509 can be used to store software programs or instructions, as well as various data. The memory 1509 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1509 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 1509 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0261] Processor 1510 may include one or more processing units; optionally, processor 1510 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 1510.

[0262] The radio frequency unit 1501 is used to feed back a first CSI report and a second CSI report to the network-side device. The first CSI report is associated with at least one first transport layer, and the second CSI report is associated with at least one second transport layer. The at least one first transport layer and the at least one second transport layer are not exactly the same.

[0263] or,

[0264] Processor 1510 acquires the third CSI report based on the reference signal associated with the sixth CSI report configuration;

[0265] Radio frequency unit 1501 feeds back the third CSI report to the network-side device, wherein the third CSI report includes third indication information, which is used to indicate at least one of the following: whether the third CSI report is associated with all transport layers, and the number of transport layers that are not associated with the third CSI report.

[0266] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant descriptions of method embodiments 200-700 and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0267] This application embodiment also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figure 8 or Figure 9 The steps of the method embodiment shown are illustrated. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0268] Specifically, embodiments of this application also provide a network-side device, which can be... Figure 12 or Figure 13 The CSI acquisition device shown. Figure 16 As shown, the network-side device 1600 includes: an antenna 161, a radio frequency (RF) device 162, a baseband device 163, a processor 164, and a memory 165. The antenna 161 is connected to the RF device 162. In the uplink direction, the RF device 162 receives information through the antenna 161 and transmits the received information to the baseband device 163 for processing. In the downlink direction, the baseband device 163 processes the information to be transmitted and sends it to the RF device 162. The RF device 162 processes the received information and transmits it through the antenna 161.

[0269] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 163, which includes a baseband processor.

[0270] Baseband device 163 may include, for example, at least one baseband board on which multiple chips are disposed, such as Figure 16 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 165 via a bus interface to call the program in the memory 165 and execute the network device operation shown in the above method embodiment.

[0271] The network-side device may also include a network interface 166, such as a Common Public Radio Interface (CPRI).

[0272] Specifically, the network-side device 1600 in this application embodiment further includes: instructions or programs stored in memory 165 and executable on processor 164, wherein processor 164 calls the instructions or programs in memory 165 to execute. Figure 12 or Figure 13 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0273] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described CSI report feedback method embodiment or the various processes of the above-described CSI acquisition method embodiment, and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0274] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0275] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described CSI report feedback method embodiment, or to implement the various processes of the above-described CSI acquisition method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0276] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0277] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described CSI report feedback method embodiment or the various processes of the above-described CSI acquisition method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0278] This application also provides a CSI acquisition system, including: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the CSI report feedback method as described above, and the network-side device can be used to perform the steps of the CSI acquisition method as described above.

[0279] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0280] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0281] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A feedback method for channel state information reporting, characterized in that, include: The terminal feeds back a first Channel Status Information (CSI) report and a second CSI report to the network-side equipment. The first CSI report is associated with at least one first transport layer, and the second CSI report is associated with at least one second transport layer, wherein the at least one first transport layer is not exactly the same as the at least one second transport layer.

2. The method according to claim 1, characterized in that, Before the terminal feeds back the first Channel State Information (CSI) report and the second CSI report to the network-side device, the method further includes: The terminal acquires a first CSI report configuration and a second CSI report configuration sent by the network-side device. The first CSI report configuration is used to indicate the configuration information of the first CSI report, and the second CSI report configuration is used to indicate the configuration information of the second CSI report or the first CSI report. The at least one first transport layer associated with the first CSI report is a transport layer other than the at least one second transport layer associated with the second CSI report in the target transport layer. The target transport layer is the transport layer associated with the channel acquired by the terminal based on the reference signal associated with the second CSI report configuration.

3. The method according to claim 2, characterized in that, The first CSI report configured to be associated with the first CSI report is an aperiodic CSI report, and the second CSI report configured to be associated with the second CSI report is a periodic or semi-continuous CSI report.

4. The method according to claim 2 or 3, characterized in that, The first CSI report also includes a first precoding matrix indicator (PMI) or a first channel quality indicator (CQI), which is obtained based on the CSI reference signal resource indicator (CRI) in the second CSI report.

5. The method according to any one of claims 1 to 4, characterized in that, The second CSI report includes first indication information, which indicates the number of the at least one first transport layer.

6. The method according to claim 1, characterized in that, Before the terminal feeds back the first Channel State Information (CSI) report and the second CSI report to the network-side device, the method further includes: The terminal obtains a third CSI report configuration sent by the network-side device, wherein the third CSI report configuration is associated with multiple periods of CSI report sending, wherein the first CSI report and the second CSI report are at least one of the multiple periods of CSI report sending, and the at least one first transport layer is a transport layer other than the at least one second transport layer among all transport layers.

7. The method according to claim 6, characterized in that, The transmission of the first CSI report and the transmission of the second CSI report satisfy at least one of the following: The transmission period values ​​are different; The transmitted time slot offset values ​​are different; The transmitted time slot offset values ​​are the same; The associated uplink channel resources are transmitted in different formats.

8. The method according to claim 6 or 7, characterized in that, The first CSI report does not include a CRI indication.

9. The method according to claim 1, characterized in that, Before the terminal feeds back the first Channel State Information (CSI) report and the second CSI report to the network-side device, the method further includes: The terminal obtains the fourth CSI report configuration sent by the network-side device, wherein the fourth CSI report configuration is associated with multiple CSI reports sent, the first CSI report and the second CSI report are at least one of the multiple CSI reports sent, and the at least one first transport layer is a transport layer other than the at least one second transport layer among all transport layers.

10. The method according to claim 9, characterized in that, The fourth CSI report is configured to associate with multiple uplink transmission channel resources, and the first CSI report and the second CSI report are respectively associated with at least one uplink transmission channel resource among the multiple uplink transmission channel resources.

11. The method according to claim 10, characterized in that, The second CSI report was sent earlier than the first CSI report.

12. The method according to any one of claims 9 to 11, characterized in that, The transmission interval between the first CSI report and the second CSI report satisfies at least one of the following: The transmission interval between the first CSI report and the second CSI report is determined according to the network-side device configuration; The interval between the transmission of the first CSI report and the second CSI report does not exceed a predetermined value, which includes at least one of the following: a value agreed upon in the protocol, or the capability feedback value of the terminal.

13. The method according to claim 1, characterized in that, Before the terminal feeds back the first Channel State Information (CSI) report and the second CSI report to the network-side device, the method further includes: The terminal acquires the fifth CSI report configuration sent by the network-side device, wherein the fifth CSI report configuration is associated with a periodic CSI report, the first CSI report and the second CSI report are at least one transmission of the periodic CSI report, and the at least one second transport layer is a portion of the at least one first transport layer.

14. The method according to claim 13, characterized in that, The transmission of the first CSI report and the transmission of the second CSI report satisfy at least one of the following: The period value associated with the transmission of the first CSI report is different from the period value associated with the transmission of the second CSI report; The uplink channel resources associated with the transmission of the first CSI report are different from the uplink channel resources associated with the transmission of the second CSI report; The first CSI report is sent when the transmission of the first CSI report and the transmission of the second CSI report occur at the same uplink channel resource timing. If the transmission of the first CSI report and the transmission of the second CSI report occur in the same uplink time slot, the first CSI report is transmitted. In the first sending cycle of the CSI report associated with the fifth CSI report configuration, the first CSI report is sent; In the first sending cycle of the CSI report associated with the fifth CSI report configuration, the second CSI report is sent.

15. A feedback method for channel state information reporting, characterized in that, include: The terminal obtains the third CSI report based on the reference signal associated with the sixth CSI report configuration; The terminal feeds back the third CSI report to the network-side device. The third CSI report includes third indication information, which indicates at least one of the following: whether the third CSI report is associated with all transport layers, and the number of transport layers that are not associated with the third CSI report.

16. The method according to claim 15, characterized in that, The sixth CSI report configuration includes a fourth indication information, which is used to instruct the terminal to provide feedback on the third indication information.

17. The method according to claim 15 or 16, characterized in that, If the rank value indicated by the rank indicator in the first part of the third CSI report is equal to the maximum allowed rank value of the sixth CSI report configuration indicator, the second part of the third CSI report includes a field associated with the third indicator information.

18. A method for obtaining CSI, characterized in that, include: The network-side device receives a first CSI report and a second CSI report from the terminal, wherein the first CSI report is associated with at least one first transport layer, and the second CSI report is associated with at least one second transport layer, and the at least one first transport layer and the at least one second transport layer are not exactly the same; The network-side device obtains CSI based on the first CSI report and the second CSI report.

19. The method according to claim 18, characterized in that, Before the network-side device receives the first CSI report and the second CSI report fed back by the terminal, the method further includes: The network-side device sends a first CSI report configuration and a second CSI report configuration to the terminal. The first CSI report configuration is used to indicate the configuration information of the first CSI report, and the second CSI report configuration is used to indicate the configuration information of the second CSI report or the first CSI report. The first CSI report configuration is associated with the at least one first transport layer, and the second CSI report configuration is associated with the at least one second transport layer.

20. The method according to claim 19, characterized in that, The first CSI report configured to be associated with the first CSI report is an aperiodic CSI report, and the second CSI report configured to be associated with the second CSI report is a periodic or semi-continuous CSI report.

21. The method according to any one of claims 18 to 20, characterized in that, The method further includes: The network-side device obtains first indication information from the second CSI report, wherein the first indication information is used to indicate the number of the at least one first transport layer; Based on the first indication information, the network-side device determines the number of the at least one first transport layer associated with the first CSI report.

22. The method according to claim 18, characterized in that, Before the network-side device receives the first CSI report and the second CSI report fed back by the terminal, the method further includes: The network-side device sends a third CSI report configuration to the terminal, wherein the third CSI report configuration is associated with multiple periodically sent CSI reports, wherein the first CSI report and the second CSI report are at least one of the multiple periodically sent CSI reports, and the at least one first transport layer is a transport layer other than the at least one second transport layer among all transport layers.

23. The method according to claim 18, characterized in that, Before the network-side device receives the first CSI report and the second CSI report fed back by the terminal, the method further includes: The network-side device sends a fourth CSI report configuration to the terminal. The fourth CSI report configuration is associated with multiple CSI reports. The first CSI report and the second CSI report are at least one of the multiple CSI reports sent. The at least one first transport layer is a transport layer other than the at least one second transport layer among all transport layers.

24. The method according to claim 23, characterized in that, The fourth CSI report is configured to associate with multiple uplink transmission channel resources, and the first CSI report and the second CSI report are respectively associated with at least one uplink transmission channel resource among the multiple uplink transmission channel resources.

25. The method according to claim 23 or 24, characterized in that, The method further includes: the network-side device configuring the sending interval between the first CSI report and the second CSI report for the terminal.

26. The method according to claim 18, characterized in that, Before the network-side device receives the first CSI report and the second CSI report fed back by the terminal, the method further includes: The network-side device sends a fifth CSI report configuration to the terminal, wherein the fifth CSI report configuration is associated with a periodic CSI report, the first CSI report and the second CSI report are at least one transmission of the periodic CSI report, and the at least one second transport layer is a portion of the at least one first transport layer.

27. A method for obtaining CSI, characterized in that, include: Network-side devices send the sixth CSI report configuration to the terminal; The network-side device receives a third CSI report from the terminal based on the configuration of the sixth CSI report. The third CSI report includes third indication information, which indicates at least one of the following: whether the third CSI report is associated with all transport layers, and the number of transport layers that are not associated with the third CSI report. The network-side device obtains the CSI based on the third CSI report.

28. The method according to claim 27, characterized in that, The sixth CSI report configuration includes a fourth indication information, which is used to instruct the terminal to provide feedback on the third indication information.

29. A feedback device for channel state information reporting, characterized in that, include: The transmitting module is used to send back the first Channel State Information (CSI) report and the second CSI report to the network-side equipment; The first CSI report is associated with at least one first transport layer, and the second CSI report is associated with at least one second transport layer, wherein the at least one first transport layer is not exactly the same as the at least one second transport layer.

30. The apparatus according to claim 29, characterized in that, It also includes a receiving module for one of the following: The system acquires a first CSI report configuration and a second CSI report configuration sent by a network-side device. The first CSI report configuration is used to indicate the configuration information of the first CSI report, and the second CSI report configuration is used to indicate the configuration information of the second CSI report or the first CSI report. The at least one first transport layer is a transport layer in the target transport layer other than the at least one second transport layer associated with the second CSI report. The target transport layer is a channel-associated transport layer obtained based on the reference signal associated with the second CSI report configuration. Obtain the third CSI report configuration sent by the network-side device, wherein the third CSI report configuration is associated with multiple periodically sent CSI reports, wherein the first CSI report and the second CSI report are at least one of the multiple periodically sent CSI reports, and the at least one first transport layer is a transport layer other than the at least one second transport layer among all transport layers; The fourth CSI report configuration sent by the network-side device is obtained, wherein the fourth CSI report configuration is associated with multiple CSI reports sent, the first CSI report and the second CSI report are at least one of the multiple CSI reports sent, and the at least one first transport layer is a transport layer other than the at least one second transport layer among all transport layers. The fifth CSI report configuration sent by the network-side device is obtained, wherein the fifth CSI report configuration is associated with a periodic CSI report, the first CSI report and the second CSI report are at least one transmission of the periodic CSI report, and the at least one second transport layer is a portion of the at least one first transport layer.

31. A feedback device for a CSI report, characterized in that, include: The receiving module is used to obtain the third CSI report based on the reference signal associated with the sixth CSI report configuration; The sending module is used to feed back the third CSI report to the network-side device, wherein the third CSI report includes third indication information, which is used to indicate at least one of the following: whether the third CSI report is associated with all transport layers, and the number of transport layers that are not associated with the third CSI report.

32. The apparatus according to claim 31, characterized in that, The sixth CSI report configuration includes a fourth indication information, which is used to indicate feedback on the third indication information.

33. A CSI acquisition device, characterized in that, include: A receiving module is configured to receive a first CSI report and a second CSI report fed back by a terminal, wherein the first CSI report is associated with at least one first transport layer, and the second CSI report is associated with at least one second transport layer, and the at least one first transport layer and the at least one second transport layer are not exactly the same; The processing module is used to obtain CSI based on the first CSI report and the second CSI report.

34. The apparatus according to claim 33, characterized in that, The device further includes: a transmitting module, used for one of the following: Send a first CSI report configuration and a second CSI report configuration to the terminal, wherein the first CSI report configuration is used to indicate the configuration information of the first CSI report, and the second CSI report configuration is used to indicate the configuration information of the second CSI report or the first CSI report. The first CSI report configuration is associated with the at least one first transport layer, and the second CSI report configuration is associated with the at least one second transport layer. Send a third CSI report configuration to the terminal, wherein the third CSI report configuration is associated with multiple periodically sent CSI reports, wherein the first CSI report and the second CSI report are at least one of the multiple periodically sent CSI reports, and the at least one first transport layer is a transport layer other than the at least one second transport layer among all transport layers; Send a fourth CSI report configuration to the terminal. The fourth CSI report configuration is associated with multiple CSI reports. The first CSI report and the second CSI report are at least one of the multiple CSI reports sent. The at least one first transport layer is a transport layer other than the at least one second transport layer among all transport layers. Send a fifth CSI report configuration to the terminal, wherein the fifth CSI report configuration is associated with a periodic CSI report, the first CSI report and the second CSI report are at least one transmission of the periodic CSI report, and the at least one second transport layer is a portion of the at least one first transport layer.

35. A CSI acquisition device, characterized in that, include: The sending module is used to send the sixth CSI report configuration to the terminal; The receiving module is configured to receive a third CSI report fed back by the terminal based on the sixth CSI report configuration, wherein the third CSI report includes third indication information, which is used to indicate at least one of the following: whether the third CSI report is associated with all transport layers, and the number of transport layers that the third CSI report is not associated with; The processing module is used to obtain CSI based on the third CSI report.

36. The apparatus according to claim 35, characterized in that, The sixth CSI report configuration includes a fourth indication information, which is used to instruct the terminal to provide feedback on the third indication information.

37. A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the feedback method for channel state information reporting as described in any one of claims 1 to 17.

38. A network-side device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the CSI acquisition method as described in any one of claims 18 to 28.

39. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the feedback method for channel state information reporting as described in any one of claims 1 to 17, or the steps of the CSI acquisition method as described in any one of claims 18 to 28.

Images