Method and apparatus for receiving and transmitting information

Abstract

The present disclosure provides a method executed by a user equipment (UE) in a wireless communication system, the method comprising: receiving a channel state information (CSI) reporting configuration, the CSI reporting configuration comprising a plurality of first sub-configurations; downlink control information (DCI) is received, and the DCI triggers one or more CSI reports; determining a first CSI report included in the one or more CSI reports based on a second sub-configuration, the second sub-configuration comprising at least one of the plurality of first sub-configurations; wherein the CSI calculation time delay parameter corresponding to the first CSI report is the parameter with the maximum value in the CSI calculation time delay parameters corresponding to each first sub-configuration in the second sub-configuration; or under the condition that the specific condition is met, the value of the CSI calculation delay parameter corresponding to the first CSI report is the first parameter value.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and more particularly, to a method and device for receiving and sending information. Background Art

[0002] In order to meet the increased demand for wireless data communication services since the deployment of 4G communication systems, efforts have been made to develop improved 5G or quasi-5G communication systems. Therefore, 5G or quasi-5G communication systems are also referred to as "super 4G networks" or "post-LTE systems."

[0003] 5G communication systems are implemented in higher frequency (millimeter wave, mmWave) bands, such as the 60 GHz band, to achieve higher data rates. In order to reduce the propagation loss of radio waves and increase the transmission distance, beamforming, massive multiple-input multiple-output (MIMO), full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, and massive antenna technology are discussed in 5G communication systems.

[0004] In addition, in the 5G communication system, development of system network improvements is underway based on advanced small cells, cloud radio access networks (RAN), ultra-dense networks, device-to-device (D2D) communication, wireless backhaul, mobile networks, collaborative communications, coordinated multi-point (CoMP), receiving-end interference cancellation, etc.

[0005] In 5G systems, hybrid FSK and QAM modulation (FQAM) and sliding window superposition coding (SWSC) as advanced coded modulation (ACM), and filter bank multi-carrier (FBMC), non-orthogonal multiple access (NOMA) and sparse code multiple access (SCMA) as advanced access technologies have been developed.

[0006] The transmission from the base station to the user equipment (UE) is called a downlink, and the transmission from the UE to the base station is called an uplink. Summary of the invention

[0007] In order to enhance the scheduling efficiency of 5G wireless communication systems, base stations need to obtain channel state information (CSI) in order to perform scheduling based on the CSI reported by terminal devices. However, how to further enhance the performance of CSI reporting is an unresolved issue.

[0008] One aspect of the present disclosure provides a method performed by a user equipment UE in a wireless communication system, the method comprising: receiving a channel state information CSI reporting configuration, wherein the CSI reporting configuration includes multiple first sub-configurations; receiving downlink control information DCI, wherein the DCI triggers one or more CSI reports; based on a second sub-configuration, determining a first CSI report included in the one or more CSI reports, wherein the second sub-configuration includes at least one of the multiple first sub-configurations; wherein a CSI calculation delay parameter corresponding to the first CSI report is a parameter having a maximum value among the CSI calculation delay parameters corresponding to each first sub-configuration in the second sub-configuration; or when condition A is satisfied, The value of the CSI calculation delay parameter corresponding to the first CSI report is a first parameter value; wherein, the condition A includes at least one of the following: each first subconfiguration in the second subconfiguration corresponds to a single-panel codebook or does not report a precoding matrix indicator PMI parameter; each first subconfiguration in the second subconfiguration corresponds to a single resource; the number of ports of the resource corresponding to each first subconfiguration in the second subconfiguration is less than or equal to 4; each first subconfiguration in the second subconfiguration has a channel state information reference signal resource indicator CRI report; each first subconfiguration in the second subconfiguration corresponds to a broadband frequency domain granularity; the number of first subconfigurations in the second subconfiguration is less than or equal to a specific value indicated by the base station.

[0009] In one example, the method also includes: when at least one of the following conditions is met, for the first CSI report, reporting the CSI report, the measurement resources corresponding to the first CSI report include the measurement resources corresponding to each first sub-configuration in the second sub-configuration corresponding to the first CSI report: the time unit carrying the one or more CSI reports is no later than the first time unit, wherein the first time unit is determined based on the time unit where the physical downlink control channel PDCCH corresponding to the DCI is located and the CSI calculation delay parameter corresponding to each CSI report in the one or more CSI reports; the time unit carrying the first CSI report is no later than the second time unit, wherein the second time unit is determined based on the time unit of the measurement resources corresponding to the first CSI report and the CSI calculation delay parameter corresponding to the first CSI report.

[0010] Another aspect of the present disclosure provides a method performed by a base station in a wireless communication system, the method comprising: sending a channel state information CSI reporting configuration, wherein the CSI reporting configuration includes multiple first sub-configurations; sending downlink control information DCI, wherein the DCI triggers one or more CSI reports; receiving a first CSI report, wherein the first CSI report is included in the one or more CSI reports and is determined based on the second sub-configuration, and the second sub-configuration includes at least one of the multiple first sub-configurations; wherein the CSI calculation delay parameter corresponding to the first CSI report is the parameter with the largest value among the CSI calculation delay parameters corresponding to each first sub-configuration in the second sub-configuration; or under condition A When the condition A is satisfied, the value of the CSI calculation delay parameter corresponding to the first CSI report is the first parameter value; wherein, the condition A includes at least one of the following: each first subconfiguration in the second subconfiguration corresponds to a single-panel codebook or does not report a precoding matrix indicator PMI parameter; each first subconfiguration in the second subconfiguration corresponds to a single resource; the number of ports of the resource corresponding to each first subconfiguration in the second subconfiguration is less than or equal to 4; each first subconfiguration in the second subconfiguration has a channel state information reference signal resource indicator CRI report; each first subconfiguration in the second subconfiguration corresponds to a broadband frequency domain granularity; the number of first subconfigurations in the second subconfiguration is less than or equal to a specific value indicated by the base station.

[0011] In one example, the measurement resources corresponding to each first subconfiguration in the second subconfiguration are determined based on at least one of the following: one or more parameters for channel measurement resources included in each first subconfiguration in the second subconfiguration for indicating the corresponding first subconfiguration; and a set of measurement resources corresponding to the CSI reporting configuration.

[0012] In one example, the method also includes: when condition B is met, the value of the CSI calculation delay parameter is a second parameter value, wherein the condition B includes at least one of the following: at least one first subconfiguration in the second subconfiguration corresponds to a multi-panel; at least one first subconfiguration in the second subconfiguration corresponds to multiple resources; the number of ports of the resources corresponding to at least one first subconfiguration in the second subconfiguration is greater than 4; at least one first subconfiguration in the second subconfiguration has a channel state information reference signal CSI-RS resource indicator CRI reporting; at least one first subconfiguration in the second subconfiguration corresponds to a sub-band frequency domain granularity; the number of first subconfigurations in the second subconfiguration is greater than or equal to a specific value indicated by the base station.

[0013] In one example, each first sub-configuration in the second sub-configuration corresponds to a single-panel codebook or does not report a precoding matrix indicator PMI parameter based on at least one of the following: a parameter included in each first sub-configuration in the second sub-configuration for indicating a codebook type of the corresponding first sub-configuration; and a codebook type corresponding to the CSI reporting configuration.

[0014] In one example, each first subconfiguration in the second subconfiguration corresponds to a single resource based on at least one of the following: one or more parameters for channel measurement resources included in each first subconfiguration in the second subconfiguration for indicating the corresponding first subconfiguration; and a resource set corresponding to the CSI reporting configuration.

[0015] In one example, the number of ports of resources corresponding to each first subconfiguration in the second subconfiguration is determined based on at least one of the following: a parameter included in each first subconfiguration in the second subconfiguration for indicating a port subset of CSI-RS resources for channel measurement of the corresponding first subconfiguration; the number of ports of resources in the resource set corresponding to the CSI reporting configuration.

[0016] In one example, the correspondence of at least one first subconfiguration in the second subconfiguration to the multi-panel is determined based on at least one of the following: a parameter included in at least one first subconfiguration in the second subconfiguration for indicating a codebook type of the corresponding first subconfiguration; and a codebook type corresponding to the CSI reporting configuration.

[0017] In one example, at least one first subconfiguration in the second subconfiguration corresponds to multiple resources based on at least one of the following: at least one first subconfiguration in the second subconfiguration includes one or more parameters for channel measurement resources for indicating the corresponding first subconfiguration; and a resource set corresponding to the CSI reporting configuration.

[0018] In one example, the number of ports of resources corresponding to at least one first subconfiguration in the second subconfiguration is determined based on at least one of the following: a parameter included in at least one first subconfiguration in the second subconfiguration for indicating a port subset of CSI-RS resources for channel measurement of the corresponding first subconfiguration; the number of ports of resources in the resource set corresponding to the CSI reporting configuration.

[0019] In an example, the maximum number of ports of the resources corresponding to each first subconfiguration in the second subconfiguration is determined based on the number of resources corresponding to each first subconfiguration in the second subconfiguration.

[0020] In an example, the number of resources corresponding to each first subconfiguration in the second subconfiguration is the maximum value of the number of resources corresponding to each first subconfiguration in the second subconfiguration.

[0021] In one example, when the number of resources corresponding to each first subconfiguration in the second subconfiguration is 1, the maximum number of ports is 32; and / or, when the maximum number of resources corresponding to each first subconfiguration in the second subconfiguration is less than or equal to 2, the maximum number of ports is 16; and / or, when the maximum number of resources corresponding to each first subconfiguration in the second subconfiguration is greater than 2 and less than or equal to 8, the maximum number of ports is 8.

[0022] In one example, the number of ports of resources corresponding to each first subconfiguration in the second subconfiguration is determined based on at least one of the following: a parameter included in each first subconfiguration in the second subconfiguration for indicating a port subset of CSI-RS resources for channel measurement of the corresponding first subconfiguration; the number of ports of resources in the resource set corresponding to the CSI reporting configuration.

[0023] In an example, the CSI reference resource corresponding to the first CSI report is determined based on the resource corresponding to each first sub-configuration in the second sub-configuration corresponding to the first CSI report.

[0024] In one example, the measurement resources corresponding to each first subconfiguration in the second subconfiguration are determined based on at least one of the following: one or more parameters for channel measurement resources included in each first subconfiguration in the second subconfiguration for indicating the corresponding first subconfiguration; and a set of measurement resources corresponding to the first CSI report.

[0025] In one example, the second sub-configuration is used to trigger a signaling indication of a CSI report corresponding to the CSI reporting configuration.

[0026] Another aspect of the present disclosure provides a user equipment, including: a transceiver; and a controller, coupled to the transceiver and configured to execute the above method that can be executed by the user equipment.

[0027] Another aspect of the present disclosure provides a base station, including: a transceiver; and a controller coupled to the transceiver and configured to execute the above method that can be executed by the controller.

[0028] The method proposed in this application improves the performance of CSI, thereby improving the scheduling efficiency of the communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and other aspects, features and advantages of the present disclosure will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0030] Figure 1 shows the overall structure of an example wireless communication network according to various embodiments of the present disclosure;

[0031] Figure 2A and Figure 2B 200 and 250 are respectively shown in a wireless communication network according to various embodiments of the present disclosure;

[0032] Figure 3A and Figure 3B The structures of a user equipment (UE) and a base station in a wireless communication network according to various embodiments of the present disclosure are respectively shown;

[0033] Figure 4 A method 400 performed by a user equipment (UE) according to various embodiments of the present disclosure is shown;

[0034] Figure 5 A method 500 performed by a base station according to various embodiments of the present disclosure is shown;

[0035] Figure 6 shows a structure 600 of a user equipment according to various embodiments of the present disclosure;

[0036] Figure 7 A structure 700 of a base station according to various embodiments of the present disclosure is shown. DETAILED DESCRIPTION

[0037] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. It should be noted that in the accompanying drawings, identical or similar elements are represented by identical or similar reference numerals as much as possible. In addition, detailed descriptions of known functions or configurations that may make the subject matter of the present disclosure unclear will be omitted.

[0038] When describing the embodiments of the present disclosure, descriptions related to technical contents that are well known in the art and not directly related to the present disclosure will be omitted. Such omission of unnecessary descriptions is to prevent the main idea of ​​the present disclosure from being obscured and to convey the main idea more clearly.

[0039] For the same reason, in the accompanying drawings, some elements may be enlarged, omitted or schematically shown. In addition, the size of each element does not fully reflect the actual size. In the accompanying drawings, the same or corresponding elements have the same reference numerals.

[0040] By referring to the embodiments described in detail below in conjunction with the accompanying drawings, the advantages and features of the present disclosure and the ways to achieve them will become clear. However, the present disclosure is not limited to the embodiments set forth below, but can be implemented in various different forms. The following embodiments are provided only to fully disclose the present disclosure and inform those skilled in the art of the scope of the present disclosure, and the present disclosure is limited only by the scope of the attached claims. Throughout the specification, the same or similar reference numerals represent the same or similar elements.

[0041] Figure 1 An example wireless communication network 100 is shown in accordance with various embodiments of the present disclosure. Figure 1 The embodiment of the wireless communication network 100 shown in FIG. 1 is for illustration only. Other embodiments of the wireless communication network 100 may be used without departing from the scope of the present disclosure.

[0042] The wireless communication network 100 includes gNodeB (gNB) 101, gNB 102, and gNB 103. gNB 101 communicates with gNB 102 and gNB 103. gNB 101 also communicates with at least one Internet Protocol (IP) network 130, such as the Internet, a private IP network, or other data network.

[0043] Depending on the type of network, other well-known terms such as “base station (BS)” or “access point (AP)” can be used instead of “gNodeB” or “gNB”. For convenience, the terms “gNodeB” and “gNB” are used in this disclosure to refer to network infrastructure components that provide wireless access to remote terminals. In addition, depending on the type of network, other well-known terms such as “mobile station”, “subscriber station”, “remote terminal”, “wireless terminal” or “user device” can be used instead of “user equipment” or “UE”. For convenience, the terms “user equipment” and “UE” are used in this disclosure to refer to a remote wireless device that wirelessly accesses a gNB, whether the UE is a mobile device (such as a mobile phone or a smart phone) or a commonly thought of fixed device (such as a desktop computer or a vending machine).

[0044] The gNB 102 provides wireless broadband access to a network 130 for a first plurality of user equipments (UEs) within a coverage area 120 of the gNB 102. The first plurality of UEs includes a UE 111 that may be located in a small business (SB), a UE 112 that may be located in an enterprise (E), a UE 113 that may be located in a WiFi hotspot (HS), a UE 114 that may be located in a first residence (R), a UE 115 that may be located in a second residence (R), and a UE 116 that may be a mobile device (M) such as a cellular phone, a wireless laptop, a wireless PDA, etc. The gNB 103 provides wireless broadband access to the network 130 for a second plurality of UEs within a coverage area 125 of the gNB 103. The second plurality of UEs includes UE 115 and UE 116. In some embodiments, one or more of the gNBs 101-103 may be capable of communicating with each other and with the UEs 111-116 using 5G, Long Term Evolution (LTE), LTE-A, WiMAX, or other advanced wireless communication technologies.

[0045] The dashed lines illustrate the approximate extents of coverage areas 120 and 125, which are shown as approximately circular for purposes of illustration and explanation only. It should be clearly understood that coverage areas associated with gNBs, such as coverage areas 120 and 125, can have other shapes, including irregular shapes, depending on the configuration of the gNB and variations in the radio environment associated with natural and man-made obstacles.

[0046] As described in more detail below, one or more of gNB 101, gNB 102, and gNB 103 include a 2D antenna array as described in embodiments of the present disclosure. In some embodiments, one or more of gNB 101, gNB 102, and gNB 103 support codebook design and structure for a system with a 2D antenna array.

[0047] although Figure 1 An example of a wireless communication network 100 is shown, but Figure 1 Various changes may be made. For example, the wireless communication network 100 can include any number of gNBs and any number of UEs in any suitable arrangement. Also, gNB 101 can communicate directly with any number of UEs and provide those UEs with wireless broadband access to network 130. Similarly, each gNB 102-103 can communicate directly with network 130 and provide UEs with direct wireless broadband access to network 130. In addition, gNB 101, gNB 102, and / or gNB 103 can provide access to other or additional external networks, such as an external telephone network or other type of data network.

[0048] Figure 2A and Figure 2B A transmit path 200 and a receive path 250 in a wireless communication network according to various embodiments of the present disclosure are shown, respectively. In the following description, the transmit path 200 can be described as being implemented in a gNB (such as gNB 102), and the receive path 250 can be described as being implemented in a UE (such as UE 116). However, it should be understood that the receive path 250 can be implemented in a gNB and the transmit path 200 can be implemented in a UE. In some embodiments, the receive path 250 is configured to support codebook design and structure for a system having a 2D antenna array as described in embodiments of the present disclosure.

[0049] The transmit path 200 includes a channel coding and modulation block 205, a serial to parallel (S to P) block 210, an N-point inverse fast Fourier transform (IFFT) block 215, a parallel to serial (P to S) block 220, an add cyclic prefix block 225, and an upconverter (UC) 230. The receive path 250 includes a downconverter (DC) 255, a remove cyclic prefix block 260, a serial to parallel (S to P) block 265, an N-point fast Fourier transform (FFT) block 270, a parallel to serial (P to S) block 275, and a channel decoding and demodulation block 280.

[0050] In the transmit path 200, the channel coding and modulation block 205 receives a set of information bits, applies coding (such as low-density parity check (LDPC) coding), and modulates the input bits (such as using quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM)) to generate a sequence of frequency-domain modulation symbols. The serial-to-parallel (S-to-P) block 210 converts (such as demultiplexes) the serial modulation symbols into parallel data to generate N parallel symbol streams, where N is the number of IFFT / FFT points used in the gNB 102 and the UE 116. The N-point IFFT block 215 performs an IFFT operation on the N parallel symbol streams to generate a time-domain output signal. The parallel-to-serial block 220 converts (such as multiplexes) the parallel time-domain output symbols from the N-point IFFT block 215 to generate a serial time-domain signal. The add cyclic prefix block 225 inserts a cyclic prefix into the time-domain signal. The up-converter 230 modulates (such as up-converts) the output of the add cyclic prefix block 225 to an RF frequency for transmission via a wireless channel. The signal can also be filtered at baseband before conversion to RF frequency.

[0051] The RF signal transmitted from gNB 102 arrives at UE 116 after passing through a wireless channel, and an operation opposite to that at gNB 102 is performed at UE 116. Downconverter 255 downconverts the received signal to a baseband frequency, and remove cyclic prefix block 260 removes the cyclic prefix to generate a serial time-domain baseband signal. Serial-to-parallel block 265 converts the time-domain baseband signal into a parallel time-domain signal. N-point FFT block 270 performs an FFT algorithm to generate N parallel frequency-domain signals. Parallel-to-serial block 275 converts the parallel frequency-domain signals into a sequence of modulated data symbols. Channel decoding and demodulation block 280 demodulates and decodes the modulated symbols to recover the original input data stream.

[0052] Each of gNBs 101-103 may implement a transmit path 200 similar to that for transmitting in the downlink to UEs 111-116 and may implement a receive path 250 similar to that for receiving in the uplink from UEs 111-116. Similarly, each of UEs 111-116 may implement a transmit path 200 for transmitting in the uplink to gNBs 101-103 and may implement a receive path 250 for receiving in the downlink from gNBs 101-103.

[0053] Figure 2A and Figure 2B Each of the components in can be implemented using hardware only, or a combination of hardware and software / firmware. As a specific example, Figure 2A and Figure 2B At least some of the components in can be implemented with software, while other components can be implemented by configurable hardware or a combination of software and configurable hardware. For example, FFT block 270 and IFFT block 215 can be implemented as a configurable software algorithm, in which the value of the number of points N can be modified according to the implementation.

[0054] In addition, although described as using FFT and IFFT, this is illustrative only and should not be construed as limiting the scope of the present disclosure. Other types of transforms can be used, such as discrete Fourier transform (DFT) and inverse discrete Fourier transform (IDFT) functions. It should be understood that for DFT and IDFT functions, the value of variable N can be any integer (such as 1, 2, 3, 4, etc.), while for FFT and IFFT functions, the value of variable N can be any integer as a power of 2 (such as 1, 2, 4, 8, 16, etc.).

[0055] although Figure 2A and Figure 2B An example of a wireless transmit and receive path is shown, but the Figure 2A and Figure 2B Make various changes. For example, Figure 2A and Figure 2B The various components in can be combined, further subdivided or omitted, and additional components can be added according to specific needs. Figure 2A and Figure 2B It is intended to illustrate examples of the types of transmit and receive paths that can be used in a wireless network. Any other suitable architecture can be used to support wireless communications in a wireless network.

[0056] Figure 3A An example UE 116 is shown in accordance with various embodiments of the present disclosure. Figure 3A The embodiment of UE 116 shown in FIG. 1 is for illustration only, and Figure 1 UEs 111-115 can have the same or similar configurations. However, UEs have a variety of configurations, and Figure 3A The scope of the present disclosure is not limited to any particular implementation of the UE.

[0057] UE 116 includes antenna 305, radio frequency (RF) transceiver 310, transmit (TX) processing circuit 315, microphone 320, and receive (RX) processing circuit 325. UE 116 also includes speaker 330, processor / controller 340, input / output (I / O) interface 345, input device(s) 350, display 355, and memory 360. Memory 360 includes operating system (OS) 361 and one or more applications 362.

[0058] The RF transceiver 310 receives incoming RF signals from the antenna 305 transmitted by the gNB of the wireless network 100. The RF transceiver 310 downconverts the incoming RF signals to generate an intermediate frequency (IF) or baseband signal. The IF or baseband signal is sent to the RX processing circuit 325, where the RX processing circuit 325 generates a processed baseband signal by filtering, decoding and / or digitizing the baseband or IF signal. The RX processing circuit 325 sends the processed baseband signal to the speaker 330 (such as for voice data) or to the processor / controller 340 (such as for web browsing data) for further processing.

[0059] The TX processing circuit 315 receives analog or digital voice data from the microphone 320, or receives other outgoing baseband data (such as network data, email, or interactive video game data) from the processor / controller 340. The TX processing circuit 315 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. The RF transceiver 310 receives the outgoing processed baseband or IF signal from the TX processing circuit 315 and up-converts the baseband or IF signal to an RF signal that is transmitted via the antenna 305.

[0060] The processor / controller 340 can include one or more processors or other processing devices and execute an OS 361 stored in the memory 360 to control the overall operation of the UE 116. For example, the processor / controller 340 can control the reception of forward channel signals and the transmission of reverse channel signals through the RF transceiver 310, the RX processing circuit 325, and the TX processing circuit 315 according to well-known principles. In some embodiments, the processor / controller 340 includes at least one microprocessor or microcontroller.

[0061] The processor / controller 340 is also capable of executing other processes and programs resident in the memory 360, such as operations for channel quality measurement and reporting of a system having a 2D antenna array as described in the embodiments of the present disclosure. The processor / controller 340 is capable of moving data into or out of the memory 360 as required by the execution process. In some embodiments, the processor / controller 340 is configured to execute an application 362 based on the OS 361 or in response to a signal received from a gNB or operator. The processor / controller 340 is also coupled to an I / O interface 345, where the I / O interface 345 provides the UE 116 with the ability to connect to other devices such as laptops and handheld devices. The I / O interface 345 is the communication path between these accessories and the processor / controller 340.

[0062] Processor / controller 340 is also coupled to input device(s) 350 and display 355. An operator of UE 116 can input data into UE 116 using input device(s) 350. Display 355 can be a liquid crystal display or other display capable of presenting text and / or at least limited graphics (such as from a website). Memory 360 is coupled to processor / controller 340. A portion of memory 360 can include random access memory (RAM), while another portion of memory 360 can include flash memory or other read-only memory (ROM).

[0063] although Figure 3A An example of UE 116 is shown, but it is possible to Figure 3A Make various changes. For example, Figure 3A The various components in can be combined, further subdivided, or omitted, and additional components can be added as required. As a specific example, processor / controller 340 can be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). In addition, although Figure 3A The UE 116 is shown configured as a mobile phone or smart phone, but the UE can be configured to operate as other types of mobile or stationary devices.

[0064] Figure 3BAn example gNB 102 is shown in accordance with various embodiments of the present disclosure. Figure 3B The embodiment of the gNB 102 shown in FIG. is for illustration only, and Figure 1 Other gNBs can have the same or similar configurations. However, gNBs have a variety of configurations, and Figure 3B The scope of the present disclosure is not limited to any particular implementation of the gNB. It should be noted that gNB 101 and gNB 103 can include the same or similar structure as gNB 102.

[0065] like Figure 3B As shown in FIG. 1 , gNB 102 includes multiple antennas 370a-370n, multiple RF transceivers 372a-372n, transmit (TX) processing circuitry 374, and receive (RX) processing circuitry 376. In some embodiments, one or more of the multiple antennas 370a-370n include a 2D antenna array. gNB 102 also includes a controller / processor 378, a memory 380, and a backhaul or network interface 382.

[0066] The RF transceivers 372a-372n receive incoming RF signals from the antennas 370a-370n, such as signals transmitted by a UE or other gNB. The RF transceivers 372a-372n downconvert the incoming RF signals to generate IF or baseband signals. The IF or baseband signals are sent to the RX processing circuitry 376, which generates processed baseband signals by filtering, decoding, and / or digitizing the baseband or IF signals. The RX processing circuitry 376 sends the processed baseband signals to the controller / processor 378 for further processing.

[0067] The TX processing circuit 374 receives analog or digital data (such as voice data, network data, email, or interactive video game data) from the controller / processor 378. The TX processing circuit 374 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. The RF transceivers 372a-372n receive the outgoing processed baseband or IF signals from the TX processing circuit 374 and up-convert the baseband or IF signals to RF signals that are transmitted via the antennas 370a-370n.

[0068] The controller / processor 378 can include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, the controller / processor 378 can control the reception of forward channel signals and the transmission of reverse channel signals through the RF transceivers 372a-372n, the RX processing circuitry 376, and the TX processing circuitry 374 in accordance with well-known principles. The controller / processor 378 can also support additional functionality, such as more advanced wireless communication functionality. For example, the controller / processor 378 can perform a Blind Interference Sensing (BIS) process, such as performed through a Blind Interference Sensing (BIS) algorithm, and decode a received signal with an interference signal subtracted. The controller / processor 378 can support any of a variety of other functions in the gNB 102. In some embodiments, the controller / processor 378 includes at least one microprocessor or microcontroller.

[0069] The controller / processor 378 can also execute programs and other processes resident in the memory 380, such as a basic OS. The controller / processor 378 can also support channel quality measurement and reporting for systems with 2D antenna arrays as described in embodiments of the present disclosure. In some embodiments, the controller / processor 378 supports communications between entities such as web RTC. The controller / processor 378 can move data into or out of the memory 380 as needed by the executing process.

[0070] The controller / processor 378 is also coupled to a backhaul or network interface 382. The backhaul or network interface 382 allows the gNB 102 to communicate with other devices or systems via a backhaul connection or via a network. The backhaul or network interface 382 can support communication via any suitable (multiple) wired or wireless connections. For example, when the gNB 102 is implemented as part of a cellular communication system (such as a cellular communication system supporting 5G or new radio access technology or NR, LTE or LTE-A), the backhaul or network interface 382 can allow the gNB 102 to communicate with other gNBs via a wired or wireless backhaul connection. When the gNB 102 is implemented as an access point, the backhaul or network interface 382 can allow the gNB 102 to communicate with a larger network (such as the Internet) via a wired or wireless local area network or via a wired or wireless connection. The backhaul or network interface 382 includes any suitable structure that supports communication via a wired or wireless connection, such as an Ethernet or RF transceiver.

[0071] The memory 380 is coupled to the controller / processor 378. A portion of the memory 380 can include RAM, while another portion of the memory 380 can include flash memory or other ROM. In some embodiments, a plurality of instructions such as a BIS algorithm are stored in the memory. The plurality of instructions are configured to cause the controller / processor 378 to perform the BIS process and decode the received signal after subtracting at least one interference signal determined by the BIS algorithm.

[0072] As described in more detail below, the transmit and receive paths of the gNB 102 (implemented using the RF transceivers 372a-372n, the TX processing circuitry 374, and / or the RX processing circuitry 376) support aggregated communications with FDD cells and TDD cells.

[0073] although Figure 3B An example of a gNB 102 is shown, but the Figure 3B For example, gNB 102 can include any number of Figure 3B . As a specific example, the access point can include multiple backhaul or network interfaces 382, ​​and the controller / processor 378 can support routing functions to route data between different network addresses. As another specific example, although shown as including a single instance of TX processing circuitry 374 and a single instance of RX processing circuitry 376, the gNB 102 can include multiple instances of each (such as one for each RF transceiver).

[0074] Currently, in wireless communication systems, user equipment (UE) can only obtain power parameters and / or spatial parameter changes on the network equipment side in a semi-static manner, which cannot meet the requirements of flexible adjustment on the base station side.

[0075] Various embodiments of the present application are described in detail below with reference to the accompanying drawings. Figure 4 A method 400 performed by a user equipment (UE) according to various embodiments of the present disclosure is shown. The method 400 includes: at 401, the UE receives configuration information for CSI reporting; at 402, the UE determines CSI or reports CSI based on the received configuration information for CSI reporting. Optionally, the CSI report for carrying CSI can correspond to / associated with a CSI calculation delay parameter, which will be described in detail in conjunction with the various embodiments of this document. In this document, the term "CSI reporting configuration information" can be used interchangeably with the terms "configuration information for CSI reporting" and "information for configuring CSI reporting".

[0076] Embodiment 1

[0077] A UE may receive a downlink control information (DCI). Optionally, the DCI triggers a non-periodic report. Optionally, the DCI (or a CSI request field included in the DCI) may trigger one or more CSI reports (on a physical uplink shared channel (PUSCH)). For example, the one or more CSI reports are carried by the PUSCH. Optionally, the one or more CSI reports include (one) first CSI report.

[0078] Optionally, the one or more CSI reports include / correspond to a first CSI report. For example, the first CSI report represents the nth (triggered) report among the one or more reports.

[0079] Optionally, the UE determines / feeds back / reports a first CSI report (or, the UE provides a (valid) CSI report for the first CSI report). Optionally, when at least one of the following conditions is met, the UE determines / feeds back / reports a first CSI report (or, the UE provides a (valid) CSI report for the first CSI report):

[0080] The time unit carrying one or more CSI reports (the start of which) is not earlier than the first time unit. For example, the unit of the time unit may be a time slot or a symbol. For example, the time unit carrying one or more CSI reports may be the first uplink symbol carrying one or more CSI reports. Optionally, the uplink symbol includes (or needs to consider) the effect of the timing advance. The first time unit (e.g., Z ref ) is described below;

[0081] The time unit carrying the first CSI report (the start) is not earlier than the second time unit. For example, the unit of the time unit may be a time slot or a symbol. For example, the time unit carrying the first CSI report may be the first uplink symbol carrying the first CSI report. Optionally, the uplink symbol includes (or needs to consider) the effect of the timing advance. See below for a description of the second time unit.

[0082] Optionally, the first time unit (eg, Z ref) is determined based on the time unit where the physical downlink control channel (PDCCH) corresponding to the DCI (e.g., the DCI that triggers one or more CSI reports) is located and the CSI calculation delay parameter corresponding to one (or, each) CSI report of the one or more CSI reports. Optionally, the first time unit may be an uplink symbol (e.g., the next uplink symbol) after the last symbol (the first specific time) where the PDCCH corresponding to the DCI (e.g., the DCI that triggers one or more CSI reports) is located. Optionally, the first specific time is determined based on the CSI calculation delay parameter corresponding to one (or, each) CSI report of the one or more CSI reports. For example, Z ref is defined as the next uplink symbol, the start of which (including its cyclic prefix (CP)) is at the end of the PDCCH that triggers (multiple) CSI reports. proc,CsI =(Z)(2048+144)·κ2 -μ ·T C +T switcj after(the next uplink symbol withits CP startingT proc,CSI =(Z)(2048+144)·κ2 -μ ·T C +T switch Here, for the description of parameter μ, refer to the description of Table 1. C represents the basic time unit for New Radio (NR). κ represents T S and T C The ratio between S andT C ). S Indicates the basic time unit for Long Term Evolution (LTE). switch is a parameter used to indicate the uplink switching time interval. switchis equal to the switching gap duration or is 0. Z represents / is equal to the maximum value of the CSI calculation delay parameter corresponding to each CSI report in the updated CSI report (in one or more CSI reports). Optionally, the (one or more) CSI reports updated in one or more CSI reports are determined according to CSI processing criteria (for example, rules related to the CSI processing unit (CPU)). For example, the terminal device can determine which CSI reports need to be updated and which CSI reports are not required to be updated based on the total number of CPUs (CSI processing units) and the number of occupied CPUs. Optionally, the updated reports are represented as report #0, report 1, ..., report M-1, where the number of updated reports is M. Optionally, each report can correspond to a CSI calculation delay parameter. For example, the CSI calculation delay parameter corresponding to report m is Z(m), m=0,1,...,M-1.

[0083] Optionally, the second time unit (eg, Z′ ref ) is determined based on the time unit of the measurement resource corresponding to the first CSI report and the CSI calculation delay parameter corresponding to the first CSI report. Optionally, the measurement resource includes a resource for channel measurement and / or a resource for interference measurement. Optionally, the measurement resource may be a non-periodic resource. Optionally, the measurement resource corresponding to the first CSI report may be the nearest resource among the measurement resources. For example, in the case where there are multiple measurement resources corresponding to the first CSI report, the measurement resource corresponding to the first CSI report refers to the nearest resource (in the time domain) among the measurement resources used for the first CSI report. For example, the time unit of the measurement resource corresponding to the first CSI report refers to the last symbol of the nearest resource (in the time domain) among the measurement resources used for the first CSI report. Optionally, the second time unit may be an uplink symbol after (the second specific time) of the last symbol of the nearest resource (in the time domain) among the measurement resources used for the first CSI report. Optionally, the second specific time is determined based on the CSI calculation delay parameter corresponding to one (or each) CSI report of one or more CSI reports. For example, taking the first CSI report as an example, Z r ' ef is defined as the next uplink symbol when the non-periodic CSI-RS for channel measurement is used for the first CSI reporting, and the start of the next uplink symbol (including its CP) is at the end of the last symbol of the non-periodic CSI-RS resource for channel measurement, the non-periodic CSI-IM for interference measurement, and the non-periodic NZP CSI-RS resource for interference measurement.proc,CSI =(Z′)(2048+144)·κ2 -μ ·T C after (the next uplink symbol with its CPstartingT′ proc,CSI =(Z′)(2048+144)·κ2 -μ ·T C after the end of the last symbol intime of the latest of:aperiodic CSI-RS resource for channel measurements,aperiodic CSI-IM used for interference measurements,and aperiodic NZP CSI-RSfor interference measurement,when aperiodic CSI-RS is used for channelmeasurement for the first CSI report). Here, for the description of parameter μ, refer to the description of Table 1. C represents the basic time unit for NR. κ represents T S and T C The ratio between S andT C ). S Represents the basic time unit for LTE. Z′ represents the maximum value of the CSI calculation delay parameter corresponding to each CSI report in the updated CSI report (in one or more CSI reports). Optionally, the (one or more) CSI reports updated in one or more CSI reports are determined according to the CSI processing standard (for example, rules related to the CPU). For example, the terminal device can determine which CSI reports need to be updated and which CSI reports are not required to be updated based on the total number of CPUs (CSI processing units) and the number of occupied CPUs. Optionally, the updated reports are represented as report #0, report 1, ..., report M-1, where the number of updated reports is M. Optionally, each report can correspond to a CSI calculation delay parameter. For example, the CSI calculation delay parameter corresponding to report m is Z′(m), m=0,1,...,M-1.

[0084] Optionally, the UE may receive a DCI. Optionally, the DCI triggers aperiodic reporting. Optionally, the DCI (or a CSI request field included in the DCI) may trigger one or more CSI reports (on the PUSCH).

[0085] Optionally, when the time unit carrying one or more CSI reports (the start of) is earlier than the first time unit, the UE ignores the DCI (or the scheduling DCI). For example, the DCI is the DCI that triggers the one or more CSI reports. Optionally, the time unit carrying one or more CSI reports includes (or needs to consider) the effect of the timing advance. Here, the first time unit refers to the above description.

[0086] Optionally, when (the start of) the time unit carrying the first CSI reporting is earlier than the second time unit, the UE performs at least one of the following operations:

[0087] If no hybrid automatic repeat request-acknowledgement (HARQ-ACK) or transport block is multiplexed on the PUSCH and the number of one or more CSI reports reported is 1, the UE ignores the DCI (or scheduling DCI);

[0088] Otherwise, the UE is not required to update the first CSI reporting.

[0089] Optionally, the time unit carrying the first CSI report includes (or needs to consider) the effect of the timing advance. Here, the second time unit refers to the above description.

[0090] Optionally, one of the one or more CSI reports (for example, the first CSI report) may correspond to one or more first sub-configurations. The following takes the first CSI report as an example to describe how the measurement resources and / or CSI calculation delay parameters corresponding to the CSI report are determined when the one or more CSI reports include the first CSI report (corresponding to the one or more first sub-configurations).

[0091] Optionally, the UE receives CSI reporting configuration information (e.g., CSI-ReportConfig). Optionally, the CSI reporting configuration information is associated / corresponds to / includes one or more first sub-configurations. Here, a sub-configuration may be referred to as sub-configuration information. Optionally, the first sub-configuration may be sub-configuration information of a CSI report. Here, the CSI reporting configuration information may correspond to one CSI report, or the CSI reporting configuration information may be used to refer to one CSI report. For example, the CSI reporting configuration information corresponds to / refers to a first CSI report.

[0092] Optionally, the second subconfiguration includes one of the one or more first subconfigurations. Optionally, the second subconfiguration is a subconfiguration (e.g., one, or any one, or each, or all) of the multiple first subconfigurations. For example, when the CSI reporting configuration information corresponds to periodic CSI reporting, the second subconfiguration is a subconfiguration (e.g., one, or any one, or each) of the one or more first subconfigurations. Optionally, when the CSI reporting configuration information corresponds to periodic CSI reporting, each report (report instance) of the periodic CSI reporting is for all subconfigurations in the one or more first subconfigurations. For example, the number of one or more first subconfigurations may be L, where L>1 (or, L>=1). For example, the number of one or more first subconfigurations may be L, where L>1 (or, L>=1). For example, taking the example that the second subconfiguration is all subconfigurations in a subset of one or more first subconfigurations, the number of second subconfigurations may be N, where N<=L and / or N>=1. Optionally, for the case where the CSI reporting is periodic CSI reporting, N=L. For example, the CSI report includes CSI parameters corresponding to all subconfigurations in one or more first subconfigurations. Optionally, the CSI reporting configuration information corresponding to periodic CSI reporting means that the reporting type parameter (reportConfigType) in the CSI reporting configuration information (eg, CSI-ReportConfig) is set to "periodic".

[0093] Optionally, the second subconfiguration includes a subset of one or more first subconfigurations. Optionally, the second subconfiguration is a first subconfiguration in a subset of one or more first subconfigurations (e.g., one, or, any one, or, each, or all). For example, when the CSI reporting configuration information corresponds to semi-continuous CSI reporting or non-periodic CSI reporting, the second subconfiguration may be a first subconfiguration in a subset of one or more first subconfigurations (e.g., one, or, any one, or each, or all). For example, the number of one or more first subconfigurations may be L, where L>1 (or, L>=1). For example, taking the example that the second subconfiguration is all subconfigurations in a subset of one or more first subconfigurations, the number of second subconfigurations may be N, where N<=L and / or N>=1. Optionally, the subset is indicated (or provided) by signaling that triggers / activates / schedules / indicates the CSI reporting corresponding to the CSI reporting configuration information. For example, the CSI reporting configuration information includes (or is configured with) L sub-configurations, and a signaling may trigger / activate / schedule / indicate the CSI reporting corresponding to the CSI reporting configuration information, and the signaling may indicate that N sub-configurations of the L sub-configurations are used for CSI reporting. For example, N<=L and / or N>=1. For example, the UE generates / determines (generates / derives) CSI parameters corresponding to N sub-configurations of the L sub-configurations and puts them into the CSI reporting. For example, if the CSI reporting configuration information corresponds to semi-persistent CSI reporting on a physical uplink control channel (PUCCH), and the CSI reporting configuration information includes (or is configured with) L sub-configurations, a media access control element (MAC-CE) signaling may trigger the CSI reporting corresponding to the CSI reporting configuration information (for example, the CSI reporting is carried by the PUCCH), and the MAC-CE signaling may include indication information for indicating that N sub-configurations from L are used for CSI reporting. For example, if the CSI reporting configuration information corresponds to semi-persistent CSI reporting on a physical uplink shared channel (PUSCH), and the CSI reporting configuration information includes (or is configured with) L sub-configurations, a downlink control information (DCI) (or DCI format) can trigger the CSI reporting corresponding to the CSI reporting configuration information (for example, the CSI reporting is carried by PUSCH), and the DCI can indicate a triggering state. Optionally, the triggering state is associated with N sub-configurations (of the L sub-configurations) (or the triggering state can indicate N configurations) for CSI reporting. Optionally, the DCI format can be DCI format 0_1 ​​or DCI format 0_2.For example, if the CSI reporting configuration information corresponds to non-periodic CSI reporting, and the CSI reporting configuration information includes (or is configured with) L sub-configurations, then a DCI (or DCI format) can trigger the CSI reporting corresponding to the CSI reporting configuration information (for example, the CSI reporting is carried by PUSCH), and the DCI can indicate a triggering state. Optionally, the triggering state is associated with N sub-configurations (of the L sub-configurations) (or the triggering state indicates N configurations) for CSI reporting. Optionally, the DCI format can be DCI format 0_1 ​​or DCI format 0_2. Optionally, the CSI reporting configuration information corresponding to semi-persistent CSI reporting on PUCCH means that the reporting type parameter (reportConfigType) in the CSI reporting configuration information (for example, CSI-ReportConfig) is set to "semi-persistent reporting on PUCCH (semiPersistentOnPUCCH)". Optionally, the CSI reporting configuration information corresponding to semi-persistent CSI reporting on PUSCH means that a reporting type parameter (reportConfigType) in the CSI reporting configuration information (e.g., CSI-ReportConfig) is set to "semi-persistent reporting on PUSCH (semiPersistentOnPUSCH)". Optionally, the CSI reporting configuration information corresponding to aperiodic CSI reporting means that a reporting type parameter (reportConfigType) in the CSI reporting configuration information (e.g., CSI-ReportConfig) is set to "aperiodic".

[0094] Optionally, the description of the second subconfiguration in the present disclosure may apply to a subconfiguration, each subconfiguration, or any subconfiguration of one or more first subconfigurations. Optionally, the description of the second subconfiguration in the present disclosure may apply to a subconfiguration, each subconfiguration, or any subconfiguration in a subset of one or more first subconfigurations. Optionally, in the present disclosure, the second subconfiguration may be equivalent to one or more first subconfigurations. Optionally, in the present disclosure, the second subconfiguration may be equivalent to the first subconfiguration.

[0095] Optionally, one of the one or more first sub-configurations or the second sub-configuration may be referred to as a sub-configuration. Optionally, the sub-configuration may include / indicate / configure / associate at least one of the following:

[0096] Port parameter. Optionally, the port parameter is used to indicate a port subset (e.g., an antenna port subset). For example, the port parameter may indicate a channel state information reference signal (CSI-RS).

[0097] Port. For example, the port parameter is a bitmap. Optionally, the length of the bitmap is equal to the number of ports of the reference signal resource used for channel measurement (for example, the number is indicated by the port parameter number parameter nrofPort). Optionally, the reference signal resource is a reference signal resource corresponding to the CSI reporting configuration information. Optionally, each bit of the bitmap corresponds one-to-one to a port of the reference signal resource (for example, an antenna port). The number of ports indicated by the subconfiguration is the number of bits in the bitmap that are '1' (or the number of '0'). Here, '0' represents / indicates that the corresponding port is disabled (or closed, or,

[0098] Here, '1' represents / indicates that the corresponding port is enabled (or turned on, or used) in the corresponding sub-configuration. Here, the definitions of the bit value '0' and the bit value '1' are exemplary, and their definitions can be interchanged. When the port parameter is not configured, the corresponding port of the sub-configuration can be the port (e.g., all ports) of the CSI-RS resource associated with the CSI reporting configuration information (for channel measurement).

[0099] ·Codebook parameters. Optionally, the codebook parameters may include / indicate at least one of a first dimension parameter (N1), a second dimension parameter (N2), a parameter (Ng) for a panel / multi-panel (or, a codebook for a panel / multi-panel), and a codebook restriction (or, a codebook subset restriction). For example, the codebook subset restriction is used to indicate a precoding matrix indicator (PMI) that is not allowed to be reported. For example, when the CSI reporting configuration corresponds / is associated with a (type one) single-panel codebook (for example, the codebook type parameter codebookType is set to 'typeI-SinglePanel') or the sub-configuration corresponds / is associated with a (type one) single-panel codebook, the sub-configuration may include / indicate the first dimension parameter (N1) and the second dimension parameter (N2). For example, when the CSI reporting configuration corresponds

[0100] When a (type one) multi-panel codebook is associated with / corresponds to a (type one) multi-panel codebook (for example, the codebook type parameter codebookType is set to 'typeI-MultiPanel') or a sub-configuration corresponds to / is associated with a (type one) multi-panel codebook, the sub-configuration may include / indicate a first dimension parameter (N1) and a second dimension parameter (N2) and a parameter (Ng) for the panel / multi-panel (or, for the codebook of the panel / multi-panel).

[0101] Optionally, when Ng is configured, the sub-configuration corresponds to a multi-panel codebook. Optionally, when Ng is not configured, the sub-configuration corresponds to a single-panel codebook. Optionally, when the configured value of Ng is greater than 1, the sub-configuration corresponds to a multi-panel codebook. Optionally, when the configured value of Ng is equal to 1, the sub-configuration corresponds to a single-panel codebook. The advantage of doing this is that the Ng parameter can be used to implicitly indicate the codebook type of the sub-configuration, reduce signaling overhead, and clarify the behavior of the terminal device.

[0102] Codebook type parameter. Optionally, the codebook type parameter is used to indicate that the sub-configuration corresponds to a (type one) single-panel codebook or a (type one) multi-panel codebook. If this parameter is not configured, the sub-configuration is based on the parameters indicated / configured in the CSI reporting configuration information (e.g.,

[0103] The codebook type is determined by the codebookType parameter. For example, the codebook type parameter codebookType is set to 'typeI-SinglePanel', indicating a (type one) single-panel codebook. For example, the codebook type parameter codebookType is set to 'typeI-MultiPanel', indicating a (type one) multi-panel codebook. The advantage of this is that the codebook type of the sub-configuration can be explicitly indicated by the parameter to clarify the behavior of the terminal device.

[0104] ·Codebook mode parameter. Optionally, the codebook type parameter is used to indicate whether the sub-configuration corresponds to mode 1 or mode 2. If this parameter is not configured, the sub-configuration determines the codebook mode based on the parameter indicated / configured in the CSI reporting configuration information (e.g., codebookMode). For example, the codebook type parameter codebookMode is set to '1', indicating codebook mode 1. For example, the codebook type parameter codebookMode is set to '2', indicating codebook mode 2. The advantage of this is that the codebook mode of the sub-configuration can be explicitly indicated by the parameter to clarify the behavior of the terminal device.

[0105] ·Rank restriction parameter. Optionally, the rank restriction parameter is used to indicate the restriction of the rank indicator (RI) of the sub-configuration. For example, the parameter may indicate which rank values ​​are allowed to be reported and which values ​​are not allowed to be reported. Optionally, when a sub-configuration does not indicate / configure / associated with / include a rank restriction parameter, the rank (reported rank) (or, the value of the rank) allowed to be reported of the sub-configuration is determined based on the rank restriction parameter in the CSI reporting configuration information. Optionally, when a sub-configuration indicates / configures / associated with / includes a rank restriction parameter, the rank allowed to be reported is determined based on the rank restriction parameter indicated / configured / associated with / included by the (corresponding) sub-configuration.

[0106] ·One or more resources. Optionally, the subconfiguration indicates one or more resources (corresponding to the subconfiguration). Optionally, the subconfiguration may indicate one or more resources (corresponding to the subconfiguration) through one or more parameters (e.g., list parameters). The one or more parameters (respectively) indicate one or more resources. Optionally, the list parameter may include one or more resource identifiers (IDs) for indicating one or more resources. Optionally, the one or more resources are from a resource set corresponding to / associated with the CSI reporting configuration information (e.g., a resource set for channel measurement and / or interference measurement). For example, the resource set is NZP-CSI-RS-ResourceSet. Optionally, the resource may be used for channel measurement or for interference measurement. Optionally, the resource may be a reference signal resource. Optionally, the resource may be a non-zero power (NZP) CSI-RS resource. Optionally, the reference signal resource may be a channel state information interference measurement (CSI-IM) resource. Optionally, the CSI corresponding to the subconfiguration is calculated / determined based on the one or more resources.

[0107] Channel Quality Indicator (CQI) table parameter. Optionally, the CQI table parameter is used to indicate a CQI table corresponding to the sub-configuration. For example, the CSI (eg, CQI) corresponding to the sub-configuration is calculated / determined based on the CQI table.

[0108] ·Power parameter. Optionally, the power parameter is used to indicate the power of one or more resources corresponding to the sub-configuration. For example, the power of the one or more resources (for channel measurement) is determined based on the power parameter and the power parameter configured (respectively) for the one or more resources. For example, a resource is configured with a power parameter (e.g., powerControlOffset), and for this resource, the CSI calculation / CSI determination is based on the sum of the power parameter indicated by the sub-configuration and the configured power parameter. For example, the sub-configuration power parameter includes a selection / indication parameter corresponding to one or more resources. A resource is configured with one or more power parameters (e.g., powerControlOffset), and for this resource, the CSI calculation / CSI determination is based on the (one) power parameter (e.g., powerControlOffset) indicated / selected by the corresponding selection / indication parameter.

[0109] Frequency domain granularity parameter. Optionally, this parameter is used to indicate the frequency domain granularity of the corresponding sub-configuration. Here, the frequency domain granularity can be a wideband frequency domain granularity or a subband frequency domain granularity. Here, the frequency domain granularity can be a wideband frequency domain granularity, or a wideband frequency domain granularity and a subband frequency domain granularity.

[0110] Optionally, the UE determines the CSI based on one or more first sub-configurations or the second sub-configurations. Optionally, the CSI may be a CSI parameter. Optionally, determining the CSI parameter may be calculating the CSI parameter. Optionally, determining the CSI parameter may be determining CSI feedback. Determining the CSI parameter may also be determining a report carrying the CSI parameter (that is, determining the CSI report). Optionally, the CSI parameter may be a CSI feedback. The CSI parameter may also be a report carrying the CSI parameter (that is, CSI report).

[0111] Optionally, the UE may receive a DCI. Optionally, the DCI triggers non-periodic reporting. Optionally, the DCI (or the CSI request field included in the DCI) may trigger one or more CSI reports (on the PUSCH). For example, the one or more CSI reports are carried by the PUSCH. Optionally, the one or more CSI reports include a first CSI report.

[0112] Optionally, the one or more CSI reports include / correspond to a first CSI report. For example, the first CSI report represents the nth (triggered) report among the one or more reports.

[0113] Optionally, the UE determines / feeds back / reports a first CSI report (or, the UE provides a (valid) CSI report for the first CSI report). Optionally, when at least one of the following conditions is met, the UE determines / feeds back / reports a first CSI report (or, the UE provides a (valid) CSI report for the first CSI report):

[0114] The time unit carrying one or more CSI reports (the start of which) is not earlier than the first time unit. For example, the unit of the time unit may be a time slot or a symbol. For example, the time unit carrying one or more CSI reports may be the first uplink symbol carrying one or more CSI reports. Optionally, the uplink symbol includes (or needs to consider) the effect of the timing advance. The first time unit (e.g.,

[0115] Z ref ) is described above;

[0116] The time unit carrying the first CSI report (the start) is not earlier than the second time unit. For example, the unit of the time unit may be a time slot or a symbol. For example, the time unit carrying the first CSI report may be the first uplink symbol carrying the first CSI report. Optionally, the uplink symbol includes (or needs to consider) the effect of the timing advance. For the description of the second time unit, see above.

[0117] When the CSI report corresponds to one or more sub-configurations, the measurement resources corresponding to the CSI report (for example, the measurement resources corresponding to the CSI report for determining the second time unit) used in the CSI report need to be further explained, otherwise the terminal device and the network device will not be clear about the second time unit. The method provided below can clarify the measurement resources corresponding to the CSI report, avoid inconsistent understanding between the terminal device and the network device, and improve the reliability of the communication system. Optionally, when the first CSI report corresponds to one or more first sub-configurations, the measurement resources corresponding to the first CSI report (described in the above conditions / related to the second time unit) may be the measurement resources corresponding to one (or each, or all) of the first sub-configurations corresponding to the first CSI report or the second sub-configuration. For example, the measurement resources corresponding to the first CSI report refer to the resources corresponding to the multiple first sub-configurations (L sub-configurations) or the second sub-configuration (N sub-configurations) corresponding to the first CSI report. Optionally, the second sub-configuration (N sub-configurations) is indicated by the trigger state of the DCI (or, the trigger state corresponding to the DCI). Optionally, the resources corresponding to multiple first subconfigurations (L subconfigurations) or second subconfigurations (N subconfigurations) may be measurement resources of all subconfigurations (corresponding) corresponding to the multiple first subconfigurations (L subconfigurations), or measurement resources of all subconfigurations (corresponding) corresponding to the second subconfigurations (N subconfigurations).

[0118] Optionally, the measurement resource corresponding to at least one (or each) of the multiple first subconfigurations or the second subconfigurations is determined based on the (explicit) indication of the subconfiguration; or, the measurement resource corresponding to at least one (or each) of the multiple first subconfigurations or the second subconfigurations is determined based on the resource set corresponding to the CSI reporting configuration information. Optionally, when the first condition is met, the resource corresponding to the subconfiguration is determined based on the resource set corresponding to the CSI reporting configuration information (for example, all resources in the set). Optionally, when the second condition is met, a resource (or a single resource) corresponding to the subconfiguration is determined based on the (explicit) indication of the subconfiguration.

[0119] For example, the resources corresponding to a sub-configuration can be determined by one or more resources indicated in the sub-configuration. The one or more resources are, for example, indicated by a list parameter. For example, the resources corresponding to a sub-configuration can be determined by a resource set included / associated / corresponding to the CSI reporting configuration information. For example, the one or more resources corresponding to the sub-configuration refer to (all) resources in the resource set. Optionally, the set corresponds to a resource set associated / corresponding to the CSI reporting configuration information (for example, NZP-CSI-RS-ResourceSet). Optionally, the resource set is in the CSI resource setting (CSI resource setting) corresponding to the CSI reporting configuration information. Optionally, the CSI resource setting is used for channel measurement and / or interference measurement. For example, the CSI resource setting can be associated / corresponding to a channel measurement resource parameter (for example, resourcesForChannelMeasurement) in the CSI reporting configuration information. For example, the CSI resource setting can be associated / corresponding to a parameter for indicating interference measurement resources in the CSI reporting configuration information. The CSI resource setting is, for example, a CSI-ResourceConfig parameter. Optionally, the resource may be a reference signal resource. Optionally, the reference signal resource may be a reference signal. Optionally, the resource includes a CSI-RS resource or a CSI-IM resource. Optionally, the CSI-RS may be a NZP CSI-RS.

[0120] When the CSI report corresponds to one or more sub-configurations, the CSI calculation delay parameter corresponding to the CSI report is unclear. The method provided below can clarify the CSI calculation delay parameter corresponding to the CSI report, avoid inconsistent understanding between the terminal device and the network device, and improve the reliability of the communication system. Optionally, when the first CSI report corresponds to one or more first sub-configurations, the CSI calculation delay parameter corresponding to the first CSI report is based on multiple first sub-configurations or second sub-configurations. Optionally, the UE determines the CSI calculation delay parameter of the CSI report corresponding to the CSI reporting configuration information based on multiple first sub-configurations or second sub-configurations. Optionally, the CSI calculation delay parameter is used to determine / indicate the CSI calculation delay parameter. Optionally, the CSI calculation delay parameter associated with the first time unit can be Z 1 and / or Z 2 Optionally, the CSI calculation delay parameter associated with the first time unit may be Z 1 ′ and / or Z 2 For example, for a report m, the CSI calculation delay parameter Z(m) associated with the first time unit may be Z 1 and / or Z 2For example, for a report m, the CSI calculation delay parameter Z′(m) associated with the second time unit may be Z 1 ′ and / or Z 2 '. The following further describes the method for determining the CSI calculation delay parameter. For example, Z(m) and Z 1 and / or Z 2 For example, Z′(m) and Z 1 ′ and / or Z 2 ′’s mapping relationship.

[0121] For example, Z 1 , Z 2 , Z 1 ′,Z 2 ' can be represented by the following Table 1. Here, μ in Table 1 corresponds to μ PDCCH , μ CSI-Rs , μ UL The minimum value min(μ PDCCH ,μ CSI-R ,μ UL ). Here, μ PDCCH The subcarrier spacing corresponding to the physical downlink control channel (PDCCH), wherein the above-mentioned DCI (for example, the DCI triggering the CSI reporting) is carried / sent through the PDCCH. UL The subcarrier spacing corresponding to the PUSCH, where the PUSCH is used to carry / send the CSI report. CSI-RS The minimum / maximum subcarrier spacing in the non-periodic CSI-RS corresponding to the DCI trigger. Optionally, the non-periodic CSI-RS triggered by the DCI refers to the (one or more) resources (e.g., CSI-RS resources) indicated by (all) sub-configurations triggered by the DCI. Optionally, when the second condition is met, the non-periodic CSI-RS triggered by the DCI refers to the (one or more) resources (e.g., CSI-RS resources) indicated by (all) sub-configurations triggered by the DCI. For example, if the DCI triggers three sub-configurations: sub-configuration #1, sub-configuration #2, and sub-configuration #3. Among them, sub-configuration #1 includes a list parameter indicating resource #1, resource #2, and resource #3. Sub-configuration #2 includes a list parameter indicating resource #4 and resource #5. Sub-configuration #3 includes a list parameter indicating resource #6 and resource #7. Then, the resources indicated by the sub-configuration triggered by the DCI are resource #1, resource #2, resource #3, resource #4, resource #5, resource #6, and resource #7.

[0122] Table 1

[0123]

[0124]

[0125] Optionally, when multiple first sub-configurations or second sub-configurations meet condition A, the UE determines the CSI calculation delay parameter of the CSI report (e.g., the first CSI report) corresponding to the CSI reporting configuration information. Optionally, the CSI calculation delay parameter is the first CSI calculation delay parameter. Optionally, the CSI reporting configuration information may correspond to N sub-configurations (or L sub-configurations). Optionally, the CSI corresponding to the N sub-configurations (or L sub-configurations) is in the DCI-triggered CSI report (or, in the DCI-triggered PUSCH). Here, the first CSI calculation delay parameter may be Z 1 and / or Z′ 1 (Or, Z 2 and / or Z′ 2 ). The first CSI calculation delay parameter may also be referred to as a first parameter value. For example, when condition A is satisfied, the CSI calculation delay parameter corresponding to the first CSI reporting is the first CSI calculation delay parameter (Z 1 and / or Z′ 1 ). Optionally, condition A may include at least one of the following:

[0126] At least one (or each) of the multiple first sub-configurations or the second sub-configurations corresponds to a single panel or does not report PMI parameters. For example, at least one (or each) of the multiple first sub-configurations or the second sub-configurations determines CSI based on a single panel codebook. For example, at least one (or each) of the multiple first sub-configurations or the second sub-configurations does not report PMI parameters.

[0127] At least one (or each) of the multiple first subconfigurations or the second subconfigurations corresponds to one resource. For example, the number of resources corresponding to at least one (or each) of the multiple first subconfigurations or the second subconfigurations is 1. For example, at least one (or each) of the multiple first subconfigurations or the second subconfigurations corresponds to a single resource. Optionally, the resource may be a (CSI-RS) resource for channel measurement.

[0128] The number of ports of resources corresponding to at least one (or each) of the multiple first sub-configurations or the second sub-configurations is less than or equal to a specific value. Optionally, the port may be a port of a (CSI-RS) resource for channel measurement. Optionally, the specific value may be at least one of 1, 2, 4, and 8. Optionally, the specific value may be indicated by a base station (for example, by RRC signaling, MAC-CE signaling, or DCI signaling). Optionally, the specific value may be based on UE capabilities (for example, the specific value is indicated by capability signaling reported by the UE).

[0129] At least one (or each) of the multiple first sub-configurations or second sub-configurations does not report the CRI. For example, when one of the sub-configurations corresponds to one resource, the CRI of the sub-configuration does not need to be reported.

[0130] At least one (or each) of the plurality of first sub-configurations or second sub-configurations corresponds to a wideband frequency domain granularity. For example, at least one (or each) of the plurality of first sub-configurations or second sub-configurations corresponds (only) to a wideband frequency domain granularity (or corresponds to a wideband granularity but does not correspond to a subband granularity). For example, at least one (or each) of the plurality of first sub-configurations or second sub-configurations determines the CSI based on (the assumption of) a wideband frequency domain granularity.

[0131] The number of subconfigurations corresponding to the multiple first subconfigurations or the second subconfiguration is less than or equal to a specific value. Here, the number of subconfigurations of the multiple first subconfigurations is, for example, L. Here, the number of subconfigurations corresponding to the second subconfiguration is, for example, N. Optionally, the specific value may be at least one of 1, 2, 3, 4, and 8. Optionally, the specific value may be indicated by the base station (for example, by RRC signaling or MAC-CE signaling or DCI signaling). Optionally, the specific value may be based on UE capabilities (for example, the specific value is indicated by capability signaling reported by the UE).

[0132] The parameters / concepts in Condition A are further described below.

[0133] Optionally, at least one (or each) of the multiple first sub-configurations or the second sub-configuration corresponds to a single-panel codebook or does not report a PMI parameter based on the indication of the sub-configuration; or, at least one (or each) of the multiple first sub-configurations or the second sub-configuration corresponds to a single-panel codebook or does not report a PMI parameter based on the codebook type corresponding to the CSI reporting configuration information. For example, the single-panel codebook corresponding to a sub-configuration can be determined by the parameter indicated in the sub-configuration. For the specific determination method, see the description of the parameter indicated by the sub-configuration above. For example, the single-panel codebook corresponding to a sub-configuration can be determined by the parameter (e.g., CodebookConfig) included / associated / corresponding to the CSI reporting configuration information for configuring the codebook. For example, the single-panel codebook corresponding to a sub-configuration can be determined by the parameter (e.g., codebookType) for indicating the codebook type in the parameter (e.g., CodebookConfig) included / associated / corresponding to the CSI reporting configuration information. For example, the non-reporting PMI parameter corresponding to a sub-configuration can be determined by the parameter indicated in the sub-configuration. For example, the sub-configuration includes or corresponds to a parameter indicating the reporting quantity of the sub-configuration, and the reporting quantity parameter indicates that the sub-configuration reports a CRI parameter, an RI parameter, and a CQI parameter. For example, a single-panel codebook corresponding to a sub-configuration can be determined by a parameter (e.g., reportQuantity) for configuring the reporting quantity included / associated / corresponding to the CSI reporting configuration information. For example, the value of the parameter for configuring the reporting quantity is equal to cri-RI-CQI or the parameter for configuring the reporting quantity indicates (CSI reporting) reporting CRI parameters, RI parameters, and CQI parameters.

[0134] When the CSI report corresponds to one or more sub-configurations, (especially when determining the CSI calculation delay parameters) it is unclear which resources the sub-configuration corresponds to. The method provided below can clarify the resources corresponding to the sub-configuration (or the number of corresponding resources), avoid inconsistent understanding between the terminal device and the network device, and improve the reliability of the communication system. Optionally, at least one (or each) of the multiple first sub-configurations or the second sub-configuration corresponds to a resource (or a single resource) based on the indication of the sub-configuration; or, at least one (or each) of the multiple first sub-configurations or the second sub-configuration corresponds to a resource based on the resource set corresponding to the CSI reporting configuration information. Optionally, when the first condition is met, the sub-configuration corresponds to a resource based on the resource set corresponding to the CSI reporting configuration information. Optionally, when the second condition is met, the sub-configuration corresponds to a resource (or a single resource) based on the indication of the sub-configuration.

[0135] For example, the resources corresponding to a sub-configuration can be determined by one or more resources indicated in the sub-configuration. The one or more resources are, for example, indicated by a list parameter. For example, the resources corresponding to a sub-configuration can be determined by a resource set included / associated / corresponding to the CSI reporting configuration information. For example, the number of resources included in the resource set is 1. Optionally, the set corresponds to a resource set associated / corresponding to the CSI reporting configuration information (for example, NZP-CSI-RS-ResourceSet). Optionally, the resource set is in the CSI resource setting (CSI resourcesetting) corresponding to the CSI reporting configuration information. Optionally, the CSI resource setting is used for channel measurement. For example, the CSI resource setting can be associated / corresponding to a channel measurement resource parameter (for example, resourcesForChannelMeasurement) in the CSI reporting configuration information. The CSI resource setting is, for example, a CSI-ResourceConfig parameter. Optionally, the resource may be a reference signal resource. Optionally, the reference signal resource may be a reference signal. Optionally, the resource includes a CSI-RS resource or a CSI-IM resource. Optionally, the CSI-RS may be a NZP CSI-RS.

[0136] When the CSI report corresponds to one or more sub-configurations, (especially when determining the CSI calculation delay parameters) the number of ports of the resources corresponding to the sub-configuration is unclear. The method provided below can clarify the number of ports of the resources corresponding to the CSI report / sub-configuration, avoid inconsistent understanding between the terminal device and the network device, and improve the reliability of the communication system. Optionally, the number of ports of the resources corresponding to at least one (or each) sub-configuration of the multiple first sub-configurations or the second sub-configurations is determined based on the indication of the sub-configuration; or, the number of ports of the resources corresponding to at least one (or each) sub-configuration of the multiple first sub-configurations or the second sub-configurations is determined based on the number of ports of the resources in the resource set corresponding to the CSI reporting configuration information. Optionally, when the first condition is met, the number of ports of the resources corresponding to the sub-configuration is determined based on the indication of the sub-configuration. Optionally, when the second condition is met, the number of ports of the resources corresponding to the sub-configuration is determined based on the resource set corresponding to the CSI reporting configuration information.

[0137] For example, the number of ports of a resource corresponding to a sub-configuration can be determined by a port parameter indicated in the sub-configuration. For example, the resource corresponding to a sub-configuration can be determined by the number of ports of the resource in the resource set included / associated / corresponding to the CSI reporting configuration information. Here, the description of the resource set can be found above. Optionally, the number of ports of a resource refers to the number of ports indicated by a port number parameter (e.g., nrofPorts) corresponding to the resource. Optionally, the port number parameter is used to define the number (or total number) of ports of the corresponding resource.

[0138] Optionally, when multiple first sub-configurations or second sub-configurations meet condition B, the UE determines a CSI calculation delay parameter of a CSI report corresponding to the CSI reporting configuration information. Optionally, the CSI calculation delay parameter is a second CSI calculation delay parameter. Optionally, the CSI reporting configuration information may include / correspond to L sub-configurations or N sub-configurations. Here, the second CSI calculation delay may be Z 2 and / or Z′ 2 , (or, Z 1 and / or Z′ 1 ). The second CSI calculation delay parameter may also be referred to as a second parameter value. For example, when condition B is satisfied, the CSI calculation delay parameter corresponding to the first CSI reporting is the second CSI calculation delay parameter (Z 2 and / or Z′ 2 ). Optionally, condition B may include at least one of the following:

[0139] · Condition A is not satisfied. For example, when a plurality of first sub-configurations or second sub-configurations satisfy Condition B, it can be understood that when a plurality of first sub-configurations or second sub-configurations do not satisfy Condition A.

[0140] At least one (or each) of the plurality of first sub-configurations or second sub-configurations corresponds to multiple panels. For example, at least one (or each) of the plurality of first sub-configurations or second sub-configurations determines CSI based on a multi-panel codebook.

[0141] At least one (or each) of the multiple first subconfigurations or the second subconfigurations corresponds to multiple resources. For example, the number of resources corresponding to at least one (or each) of the multiple first subconfigurations or the second subconfigurations is greater than (or equal to) 1. For example, at least one (or each) of the multiple first subconfigurations or the second subconfigurations corresponds to multiple resources. Optionally, the resource may be a (CSI-RS) resource for channel measurement.

[0142] The number of ports of resources corresponding to at least one (or each) of the multiple first sub-configurations or the second sub-configurations is greater than or equal to a specific value. Optionally, the port is a port of a (CSI-RS) resource for channel measurement. Optionally, the specific value may be at least one of 1, 2, 4, and 8. Optionally, the specific value may be indicated by a base station (for example, indicated by RRC signaling or MAC-CE signaling or DCI signaling). Optionally, the specific value may be based on UE capabilities (for example, the specific value is indicated by capability signaling reported by the UE).

[0143] At least one (or each) of the multiple first sub-configurations or the second sub-configurations reports CRI. For example, when one of the sub-configurations corresponds to multiple resources, the sub-configuration reports CRI (or needs to report CRI).

[0144] At least one (or each) of the plurality of first sub-configurations or second sub-configurations corresponds to a sub-band frequency domain granularity. For example, at least one (or each) of the plurality of first sub-configurations or second sub-configurations corresponds (only) to a sub-band frequency domain granularity. For example, at least one (or each) of the plurality of first sub-configurations or second sub-configurations determines CSI based on (the assumption of) a sub-band frequency domain granularity.

[0145] The number of subconfigurations corresponding to the multiple first subconfigurations or the second subconfigurations is greater than or equal to a specific value. Here, the number of subconfigurations of the multiple first subconfigurations is, for example, L. Here, the number of subconfigurations corresponding to the second subconfiguration is, for example, N. Optionally, the specific value may be at least one of 1, 2, 3, 4, and 8. Optionally, the specific value may be indicated by the base station (for example, by RRC signaling or MAC-CE signaling or DCI signaling). Optionally, the specific value may be based on UE capabilities (for example, the specific value is indicated by capability signaling reported by the UE).

[0146] For further description of the parameters / concepts in condition B, see the description of the parameters / concepts in condition A.

[0147] Optionally, the CSI calculation delay parameter of the CSI report corresponding to the CSI reporting configuration information is the CSI calculation delay parameter with the largest / smallest value among the CSI calculation delay parameters corresponding to each subconfiguration in the multiple first subconfigurations or the second subconfigurations. Optionally, the CSI report may include L subconfigurations or N subconfigurations. In this method, each subconfiguration in the multiple first subconfigurations or the second subconfigurations (or, each of the L subconfigurations or the N subconfigurations) can calculate / determine a corresponding CSI calculation delay parameter. For a subconfiguration / each subconfiguration, the corresponding CSI calculation delay parameter is determined based on condition A and / or condition B. For example, when a subconfiguration satisfies condition A, the CSI calculation delay parameter corresponding to the subconfiguration is the first CSI calculation delay parameter (for example, Z 1 and / or Z′ 1 For example, when a sub-configuration satisfies condition B, the CSI calculation delay parameter corresponding to the sub-configuration is the second CSI calculation delay parameter (for example, Z 2 and / or Z′ 2 ). Here, the value of the CSI calculation delay parameter may represent the number of symbols (for example, as shown in Table 1). For example, the value of the first CSI calculation delay parameter is less than or equal to the value of the second CSI calculation delay parameter. For example, in the case of the same subcarrier spacing, the first CSI calculation delay parameter (Z 1 ) is less than or equal to the corresponding second CSI calculation delay parameter (Z 2 ). For example, the CSI report corresponds to N sub-configurations, and the CSI calculation delay parameter corresponding to the CSI report is the largest CSI calculation delay parameter among the N sub-configurations. For example, the CSI report corresponds to L sub-configurations, and the CSI calculation delay parameter corresponding to the CSI report is the largest CSI calculation delay parameter among the L sub-configurations.

[0148] Optionally, the CSI calculation delay parameter of the CSI reporting corresponding to the CSI reporting configuration information is predefined. For example, the CSI calculation delay parameter of the CSI reporting corresponding to the CSI reporting configuration information is a first CSI calculation delay parameter (for example, Z 1 and / or Z′ 1 For example, the CSI calculation delay parameter of the CSI report corresponding to the CSI reporting configuration information is the second CSI calculation delay parameter (for example, Z 2 and / or Z′ 2 ).

[0149] The specific contents of the first condition and the second condition are described below.

[0150] Optionally, the first condition includes at least one of the following:

[0151] The second condition is not met. That is, when the second condition is not met, the UE determines the second CSI parameter of the second sub-configuration based on the first CSI parameter indicated by the second sub-configuration. The second condition is described below.

[0152] The second sub-configuration is configured with type 1 parameters. Optionally, the type 1 parameters are used to indicate type 1 adaptation.

[0153] One or more first sub-configurations (one or all of them) are configured with type 1 parameters. Optionally, the type 1 parameters are used to indicate type 1 adaptation.

[0154] One or more first sub-configurations have different CSI-RS ports (or, CSI-RS port subsets). Optionally, the CSI-RS port refers to the CSI-RS port (or, port subset) indicated by the second sub-configuration. Optionally, the CSI-RS port may be a CSI-RS port for channel measurement. The CSI port may be a CSI-RS antenna port. Optionally, the CSI-RS port corresponds to a resource (e.g., a reference signal resource) for channel measurement.

[0155] The second sub-configuration includes / corresponds / is associated with / indicates a port subset. Optionally, the port subset refers to a CSI-RS port subset (or a CSI-RS antenna port subset). Optionally, the port subset refers to a CSI-RS port subset (or a CSI-RS antenna port subset) of the second sub-configuration (for channel measurement).

[0156] One or more first sub-configurations (one or all of them) include / correspond / associated / indicate a port subset. Optionally, one or more first sub-configurations (one or all of them) include / correspond / associated / indicate different port subsets (e.g., CSI-RS antenna port subsets). Optionally, the CSI-RS resource corresponding to the port subset is used for channel measurement and / or interference measurement.

[0157] The number of resources used for channel measurement in the second sub-configuration is greater than 1. Optionally, the number of reference signal resources used for channel measurement in the second sub-configuration is greater than 1.

[0158] The number of resources for channel measurement corresponding to the CSI configuration information is greater than 1. Optionally, the number of reference signal resources for channel measurement in the second subconfiguration is greater than 1. For example, the number of reference signal resources in the resource set (for channel measurement) (for example, NZP-CSI-RS-ResourceSet) corresponding to the CSI configuration information is greater than 1.

[0159] The CSI configuration information corresponds to one of aperiodic CSI reporting, semi-persistent CSI reporting and aperiodic CSI reporting.

[0160] The resources for channel measurement and / or for interference measurement of the second sub-configuration are non-periodic. Optionally, the resource type parameter (e.g., resourceType) of the CSI resource setting (CSI-ResourceConfig) (for channel measurement and / or for interference measurement) corresponding to the CSI reporting configuration information of the second sub-configuration is set to "non-periodic".

[0161] The resources for channel measurement and / or for interference measurement included / corresponding / associated / indicated by (one or all of) the one or more first sub-configurations are aperiodic. Optionally, the resource type parameter (e.g., resourceType) of the CSI resource setting (CSI-ResourceConfig) (for channel measurement and / or for interference measurement) corresponding to the CSI reporting configuration information of the one or more first sub-configurations is set to "aperiodic".

[0162] Optionally, the second condition includes at least one of the following:

[0163] The first condition is not met. That is, when the first condition is not met, the UE determines the second CSI parameter of the second sub-configuration based on the first CSI parameter of the second sub-configuration. The description of the first condition is as above.

[0164] The second sub-configuration is configured with type 2 parameters. Optionally, the type 2 parameters are used to indicate type 2 adaptation.

[0165] One or more first sub-configurations (one or all of them) are configured with type 2 parameters. Optionally, the type 2 parameters are used to indicate type 2 adaptation.

[0166] One or more first sub-configurations have the same CSI-RS port. Optionally, the CSI-RS port refers to a CSI-RS port corresponding to a port number parameter (e.g., nrofPorts). Optionally, the CSI-RS port may be a CSI-RS port for channel measurement. The CSI port may be a CSI-RS antenna port. Optionally, the CSI-RS port corresponds to a resource (e.g., a reference signal resource) for channel measurement.

[0167] ·The second sub-configuration includes / corresponds / is associated with / indicates one or more resources. Optionally, the one or more resources are used for channel measurement and / or interference measurement. Optionally, the one or more resources are reference signal resources for channel measurement. Optionally, the one or more resources are reference signal resources for interference measurement. Optionally, the second sub-configuration includes / corresponds / is associated with one or more lists, which (respectively) indicate one or more resources. Optionally, the one or more (reference signal) resources include reference signal resources in a resource set (e.g., NZP-CSI-RS-ResourceSet). Optionally, the one or more resources include resources in a resource set (e.g., csi-IM-ResourceSet). Optionally, the resource set corresponds to CSI reporting configuration information. For example, the resource set is in the CSI resource setting (CSI resource setting) corresponding to the CSI reporting configuration information. The CSI resource setting is, for example, CSI-ResourceConfig.

[0168] ·One or more first sub-configurations (one or all of them) include / correspond to / associated with / indicate one or more resources. Optionally, the one or more resources are used for channel measurement and / or interference measurement. Optionally, the second sub-configuration includes / corresponds to / associated with one or more lists, which indicate one or more resources. Optionally, the one or more resources include reference signal resources in a resource set (e.g., NZP-CSI-RS-ResourceSet). Optionally, the one or more resources include resources in a resource set (e.g., csi-IM-ResourceSet). Optionally, the resource set corresponds to CSI reporting configuration information. For example, the resource set is in the CSI resource setting (CSI resourcesetting) corresponding to the CSI reporting configuration information. The CSI resource setting is, for example, CSI-ResourceConfig.

[0169] The number of resources used for channel measurement in the second sub-configuration is greater than 1. Optionally, the number of reference signal resources used for channel measurement in the second sub-configuration is greater than 1.

[0170] The CSI configuration information corresponds to one of aperiodic CSI reporting, semi-persistent CSI reporting and aperiodic CSI reporting.

[0171] The resources for channel measurement and / or for interference measurement of the second sub-configuration are non-periodic. Optionally, the resource type parameter (e.g., resourceType) of the CSI resource setting (CSI-ResourceConfig) (for channel measurement and / or for interference measurement) corresponding to the CSI reporting configuration information of the second sub-configuration is set to "non-periodic".

[0172] The resources for channel measurement and / or for interference measurement included / corresponding / associated / indicated by (one or all of) the one or more first sub-configurations are aperiodic. Optionally, the resource type parameter (e.g., resourceType) of the CSI resource setting (CSI-ResourceConfig) (for channel measurement and / or for interference measurement) corresponding to the CSI reporting configuration information of the one or more first sub-configurations is set to "aperiodic".

[0173] The benefit of the first embodiment is that, when one or more sub-configurations are configured for CSI reporting, the method for calculating the CSI delay parameter corresponding to the CSI reporting of one or more sub-configurations is clarified, so that the terminal device can correctly decide whether to discard the corresponding CSI report or CSI information based on the CSI calculation delay parameter, thereby improving the reliability of the communication system. In addition, clarifying the CSI calculation delay parameter can help the terminal device hardware to be designed in a targeted manner, which can reduce the cost of the hardware.

[0174] Embodiment 2

[0175] The UE receives CSI reporting configuration information (e.g., CSI-ReportConfig). Optionally, the CSI reporting configuration information is associated / corresponds to / includes one or more first sub-configurations. Here, the sub-configuration may be referred to as sub-configuration information. Optionally, the first sub-configuration may be sub-configuration information of the CSI report. Here, the CSI reporting configuration information may correspond to one CSI report, or the CSI reporting configuration information may be used to refer to one CSI report.

[0176] Optionally, the second subconfiguration includes one of the one or more first subconfigurations. Optionally, the second subconfiguration includes one of the subconfigurations in a subset of the one or more first subconfigurations. Here, the description of the first subconfiguration and the second subconfiguration and the subset is referred to in Embodiment 1.

[0177] Optionally, one of the one or more first sub-configurations or the second sub-configuration may be referred to as a sub-configuration. Optionally, the sub-configuration may include / indicate / configure / associate at least one of the following:

[0178] Port parameters. Optionally, when the first condition is met, the sub-configuration may include / indicate / configure / associate port parameters. For a description of the port parameters, see Embodiment 1.

[0179] · Codebook parameters. Optionally, when the first condition is met, the sub-configuration may include / indicate / configure / associated codebook parameters. For a description of the codebook parameters, see Embodiment 1.

[0180] · Codebook type parameter. Optionally, when the first condition is met, the sub-configuration may include / indicate / configure / associated codebook type parameter. For a description of the codebook type parameter, see Embodiment 1.

[0181] Rank restriction parameter. Optionally, when the first condition is met, the sub-configuration may include / indicate / configure / associated with the rank restriction parameter. For a description of the rank restriction parameter, see Embodiment 1.

[0182] ·One or more resources. Optionally, when the second condition (or the first condition) is met, the sub-configuration may include / indicate / configure / associated with one or more resources. For a description of one or more resources, see Embodiment 1.

[0183] ·CQI table parameters. Optionally, when the second condition (or the first condition) is met, the sub-configuration may include / indicate / configure / associated CQI table parameters. For a description of the CQI table parameters, see Embodiment 1.

[0184] Power parameter. Optionally, when the second condition (or the first condition) is met, the sub-configuration may include / indicate / configure / associated power parameters. For a description of the power parameters, see Embodiment 1.

[0185] Frequency domain granularity parameter: For the description of the frequency domain granularity parameter, see the first embodiment.

[0186] Optionally, the UE determines the CSI or reports the CSI based on the multiple first sub-configurations or the second sub-configurations. Optionally, the CSI may be a CSI parameter. Optionally, determining the CSI parameter may be calculating the CSI parameter. Optionally, determining the CSI parameter may be determining CSI feedback. Determining the CSI parameter may also be determining a report carrying the CSI parameter (that is, determining the CSI report). Optionally, the CSI parameter may be a CSI feedback. The CSI parameter may also be a report carrying the CSI parameter (that is, CSI reporting).

[0187] Optionally, the CSI parameter may be referred to as a CSI quantity. Optionally, the CSI parameter may be at least one of a CSI-RS Resource Indicator (CSI-RS Resource Indicator, CRI), a Rank Indicator (Rank Indicator, RI), a Precoding Matrix Indicator (Precoding Matrix Indicator, PMI), a Channel Quality Indicator (CQI), and a Layer Indicator (layer indicator, LI). Optionally, the CSI parameter may be at least one of a CSI-RS Resource Indicator (CSI-RS Resource Indicator, CRI), a SSB Resource Indicator (SS / PBCH Block Resource indicator, SSBRI), a Layer 1-Reference Signal Received Power (L1-RSRP), a Layer 1-Signal to Interference and Noise Ratio (L1-SINR), and a Capability Index (CapabilityIndex).

[0188] Optionally, the CSI parameter (or the first CSI parameter and / or the second CSI parameter) may be determined based on (the amount of reporting) corresponding to the CSI reporting configuration information. Optionally, the CSI parameters of (one or each of) the multiple first sub-configurations or the second sub-configurations may be determined based on (the amount of reporting) corresponding to the CSI reporting configuration information. Optionally, the CSI parameter (or the amount of reporting) corresponding to the CSI reporting configuration information may be at least one of CRI, RI, LI, PMI, and CQI. Optionally, the reporting quantity parameter (e.g., reportQuantity) included in the CSI reporting configuration information (e.g., CSI-ReportConfig) may be at least one of CRI, RI, LI, PMI, and CQI. For example, when the reportQuantity parameter is set to "cri-RI-LI-PMI-CQI", the corresponding CSI parameters (of one or each of the multiple first sub-configurations or the second sub-configurations) are CRI, RI, LI, PMI, and CQI. For example, when the reportQuantity parameter is set to "cri-RI-PMI-CQI", the corresponding CSI parameters (of one or each of the multiple first subconfigurations or the second subconfiguration) are CRI, RI, PMI, and CQI. For example, when the reportQuantity parameter is set to "cri-RI-i1-CQI", the corresponding CSI parameters (of one or each of the multiple first subconfigurations or the second subconfiguration) are CRI, RI, PMI, and CQI. For example, when the reportQuantity parameter is set to "cri-RI-i1", the corresponding CSI parameters (of one or each of the multiple first subconfigurations or the second subconfiguration) are CRI, RI, and PMI. For example, when the reportQuantity parameter is set to "cri-RI-CQI", the corresponding CSI parameters (of one or each of the multiple first subconfigurations or the second subconfiguration) are CRI, RI, and CQI.

[0189] Optionally, the maximum number of ports of resources corresponding to at least one (or each) of the multiple first subconfigurations or the second subconfigurations is based on the number of resources corresponding to the multiple first subconfigurations or the second subconfigurations. Optionally, the number of resources corresponding to the multiple first subconfigurations or the second subconfigurations may be based on the maximum / minimum value of the number of resources corresponding to at least one (or each) of the multiple first subconfigurations or the second subconfigurations.

[0190] Optionally, when the second condition (or the first condition) is met, the maximum number of ports of resources corresponding to at least one (or each) of the multiple first subconfigurations or the second subconfigurations is based on the maximum / minimum value of the number of resources corresponding to at least one (or each) of the multiple first subconfigurations or the second subconfigurations. For example, one CSI report corresponds to 2 subconfigurations, subconfiguration #1 and subconfiguration #2. Subconfiguration #1 corresponds to resource #1 and resource #2; subconfiguration #2 corresponds to resource #3. The maximum value of the number of resources corresponding to these subconfigurations (subconfiguration #1 and subconfiguration #2) is 2.

[0191] Optionally, when the number of resources corresponding to the multiple first sub-configurations or the second sub-configurations is 1 and / or 2, the maximum number of ports corresponding to at least one (or each) sub-configuration of the multiple first sub-configurations or the second sub-configurations is a specific value. Optionally, the specific value may be at least one of 16, 32, and 64. Optionally, the specific value may be indicated by a base station (for example, indicated by RRC, or indicated by MAC-CE, or indicated by DCI). Optionally, the specific value may be based on UE capabilities. For example, the specific value is indicated by capability signaling reported by the UE.

[0192] Optionally, when the number of resources corresponding to the multiple first sub-configurations or the second sub-configurations is 2 and / or 3 and / or 4, the maximum number of ports corresponding to at least one (or each) sub-configuration of the multiple first sub-configurations or the second sub-configurations is a specific value. Optionally, the specific value may be at least one of 8, 16, 32, and 64. Optionally, the specific value may be indicated by a base station (for example, indicated by RRC, or indicated by MAC-CE, or indicated by DCI). Optionally, the specific value may be based on UE capabilities. For example, the specific value is indicated by capability signaling reported by the UE.

[0193] Optionally, when the number of resources corresponding to multiple first subconfigurations or second subconfigurations is greater than or equal to 2 (or, 3, or, 4) and less than or equal to 4 (or, 8), the maximum number of ports corresponding to at least one (or, each) subconfiguration of the multiple first subconfigurations or second subconfigurations is a specific value. Optionally, the specific value may be at least one of 8, 16, 32, and 64. Optionally, the specific value may be indicated by a base station (for example, indicated by RRC, or, indicated by MAC-CE, or, indicated by DCI). Optionally, the specific value may be based on UE capabilities. For example, the specific value is indicated by capability signaling reported by the UE.

[0194] When the CSI report corresponds to one or more sub-configurations, (especially when determining the maximum number of ports for resources corresponding to the CSI report / sub-configuration) it is unclear which resources the sub-configuration corresponds to. The method provided below can clarify the resources corresponding to the sub-configuration (or the number of corresponding resources), avoid inconsistent understanding between terminal devices and network devices, and improve the reliability of the communication system. Optionally, the resources corresponding to at least one (or each) of the multiple first sub-configurations or the second sub-configurations are determined based on the indication of the sub-configuration; or, the resources corresponding to at least one (or each) of the multiple first sub-configurations or the second sub-configurations are determined based on the resource set corresponding to the CSI reporting configuration information. Optionally, when the first condition is met, the resources corresponding to the sub-configuration are determined based on the resource set corresponding to the CSI reporting configuration information. Optionally, when the second condition is met, the resources corresponding to the sub-configuration are determined based on the indication of the sub-configuration.

[0195] For example, the resources corresponding to a sub-configuration can be determined by one or more resources indicated in the sub-configuration. The one or more resources are, for example, indicated by a list parameter. For example, the resources corresponding to a sub-configuration can be determined by a resource set included / associated / corresponding to the CSI reporting configuration information. Optionally, the set corresponds to a resource set associated / corresponding to the reporting configuration information (e.g., NZP-CSI-RS-ResourceSet). Optionally, the resource set is in a CSI resource setting (CSI resource setting) corresponding to the CSI reporting configuration information. Optionally, the CSI resource setting is used for channel measurement. For example, the CSI resource setting can be associated / corresponding to a channel measurement resource parameter (e.g., resourcesForChannelMeasurement) in the CSI reporting configuration information. The CSI resource setting is, for example, a CSI-ResourceConfig parameter. Optionally, the resource may be a reference signal resource. Optionally, the reference signal resource may be a reference signal. Optionally, the resource includes a CSI-RS resource or a CSI-IM resource. Optionally, the CSI-RS may be an NZP CSI-RS.

[0196] When the CSI report corresponds to one or more sub-configurations, (especially when determining the maximum number of ports of resources corresponding to the CSI report / sub-configuration), the number of ports corresponding to the sub-configuration is unclear. The method provided below can clarify the number of ports of resources corresponding to the CSI report / sub-configuration, avoid inconsistent understanding between terminal equipment and network equipment, and improve the reliability of the communication system. Optionally, the number of ports of resources corresponding to at least one (or each) sub-configuration of multiple first sub-configurations or second sub-configurations is determined based on the indication of the sub-configuration; or, the number of ports of resources corresponding to at least one (or each) sub-configuration of multiple first sub-configurations or second sub-configurations is determined based on the number of ports of resources in the resource set corresponding to the CSI reporting configuration information. Optionally, when the first condition is met, the number of ports of resources corresponding to the sub-configuration is determined based on the indication of the sub-configuration. Optionally, when the second condition is met, the number of ports of resources corresponding to the sub-configuration is determined based on the resource set corresponding to the CSI reporting configuration information.

[0197] For example, the number of ports of a resource corresponding to a sub-configuration can be determined by a port parameter indicated in the sub-configuration. For example, the resource corresponding to a sub-configuration can be determined by the number of ports of the resource in the resource set included / associated / corresponding to the CSI reporting configuration information. Here, the description of the resource set can be found above. Optionally, the number of ports of a resource refers to the number of ports indicated by a port number parameter (e.g., nrofPorts) corresponding to the resource. Optionally, the port number parameter is used to define the number (or total number) of ports of the corresponding resource.

[0198] The benefit of the second embodiment is that, when one or more sub-configurations are configured for CSI reporting, the limitation of the measurement resources corresponding to the CSI reporting of one or more sub-configurations (for example, the maximum number of resources that can be configured) is clarified, ensuring that the terminal device can process the corresponding CSI reporting, thereby improving the reliability of the communication system. In addition, clarifying the limitation of the measurement resources for CSI reporting can help the terminal device hardware to be designed in a targeted manner, which can reduce the cost of the hardware.

[0199] Embodiment 3

[0200] The UE receives CSI reporting configuration information (e.g., CSI-ReportConfig). Optionally, the CSI reporting configuration information is associated / corresponds to / includes one or more first sub-configurations. Here, a sub-configuration may be referred to as sub-configuration information. Optionally, the first sub-configuration may be sub-configuration information of a CSI report. Here, the CSI reporting configuration information may correspond to one CSI report, or the CSI reporting configuration information may be used to refer to one CSI report. For example, the CSI reporting configuration information may be used to correspond to / refer to a first CSI report.

[0201] Optionally, the second subconfiguration includes one of the one or more first subconfigurations. Optionally, the second subconfiguration includes one of the subconfigurations in a subset of the one or more first subconfigurations. Here, the description of the first subconfiguration and the second subconfiguration and the subset is referred to in Embodiment 1.

[0202] Optionally, one of the one or more first sub-configurations or the second sub-configuration may be referred to as a sub-configuration. Optionally, the sub-configuration may include / indicate / configure / associate at least one of the following:

[0203] Port parameters. Optionally, when the first condition is met, the sub-configuration may include / indicate / configure / associate port parameters. For a description of the port parameters, see Embodiment 1.

[0204] · Codebook parameters. Optionally, when the first condition is met, the sub-configuration may include / indicate / configure / associated codebook parameters. For a description of the codebook parameters, see Embodiment 1.

[0205] · Codebook type parameter. Optionally, when the first condition is met, the sub-configuration may include / indicate / configure / associated codebook type parameter. For a description of the codebook type parameter, see Embodiment 1.

[0206] Rank restriction parameter. Optionally, when the first condition is met, the sub-configuration may include / indicate / configure / associated with the rank restriction parameter. For a description of the rank restriction parameter, see Embodiment 1.

[0207] ·One or more resources. Optionally, when the second condition (or the first condition) is met, the sub-configuration may include / indicate / configure / associated with one or more resources. For a description of one or more resources, see Embodiment 1.

[0208] ·CQI table parameters. Optionally, when the second condition (or the first condition) is met, the sub-configuration may include / indicate / configure / associated CQI table parameters. For a description of the CQI table parameters, see Embodiment 1.

[0209] Power parameter. Optionally, when the second condition (or the first condition) is met, the sub-configuration may include / indicate / configure / associated power parameters. For a description of the power parameters, see Embodiment 1.

[0210] Frequency domain granularity parameter: For the description of the frequency domain granularity parameter, see the first embodiment.

[0211] Optionally, the UE determines the CSI or reports the CSI based on the multiple first sub-configurations or the second sub-configurations. Optionally, the CSI may be a CSI parameter. Optionally, determining the CSI parameter may be calculating the CSI parameter. Optionally, determining the CSI parameter may be determining CSI feedback. Determining the CSI parameter may also be determining a report carrying the CSI parameter (that is, determining the CSI report). Optionally, the CSI parameter may be a CSI feedback. The CSI parameter may also be a report carrying the CSI parameter (that is, CSI reporting).

[0212] Optionally, the UE determines a CSI reference resource based on multiple first sub-configurations or second sub-configurations. Optionally, the UE determines a CSI reference resource for a CSI report (e.g., a first CSI report) based on multiple first sub-configurations or second sub-configurations. Optionally, the UE determines a parameter n associated with a CSI reference resource for a CSI report (e.g., a first CSI report) based on multiple first sub-configurations or second sub-configurations. CSI_ref Parameter n CSI_ref See below for a detailed description.

[0213] Optionally, the UE determines a CSI parameter (e.g., CQI / PMI / RI) based on a CSI reference resource. Optionally, for a CSI report (e.g., a first CSI report), the UE determines a CSI parameter (e.g., CQI / PMI / RI) corresponding to the CSI report based on the CSI reference resource. For example, if the CQI index / PMI / RI is configured to be reported, the UE determines the CQI index / PMI / RI based on the CSI reference signal (if configured to report CQI index / PMI / RI,the UE derives the CQIindex / PMI / RI based on the CSI reference resource).

[0214] Optionally, if there is no valid downlink slot for the CSI reference resource corresponding to a CSI Report Setting in a serving cell (e.g., a configuration for CSI reporting), the CSI reporting of the serving cell (e.g., the CSI reporting in time slot n') will be ignored (If there is no valid downlink slot for the CSI reference resource corresponding to a CSI Report Setting in a serving cell, CSI reporting isomitted for the serving cell in uplink slot n').

[0215] Optionally, the UE determines (derives) a channel measurement and / or an interference measurement based on a reference signal no later than the CSI reference resource. Optionally, the UE determines (derives) a channel measurement and / or an interference measurement (e.g., a channel measurement and / or an interference measurement for a CSI value calculated for reporting in uplink time slot n') based on a reference signal no later than the CSI reference resource. Optionally, the channel measurement may be used to calculate L1-RSRP or L1-SINR. Optionally, the interference measurement may be used to calculate L1-SINR. Optionally, the channel measurement and / or the interference measurement may be used to calculate a CSI value (CSI value). Optionally, the reference signal may be a reference signal opportunity. Optionally, the reference signal may be a reference signal resource. Optionally, the reference signal may be at least one of SSB, CSI-RS, and CSI-IM. Optionally, the CSI-RS may be an NZP CSI-RS. Optionally, the reference signal may be used for channel measurement and / or for interference measurement. Optionally, the reference signal may be used for CSI acquisition. Optionally, the reference signal may be used for calculating L1-RSRP and / or for calculating L1-SINR.

[0216] For example, if the higher layer parameter timeRestrictionForChannelMeasurements is set to "notConfigured", the UE derives the channel measurements for computing CSI valuereported in uplink slot n'based on only the NZP CSI-RS, no later than the CSIreference resource associated with the CSI resource setting.

[0217] For example, if the higher layer parameter timeRestrictionForChannelMeasurements in CSI-ReportConfig is set to "Configured", the UE derives the channel measurements for computing CSI reported in uplink slot n'based on only the most recent, no later than the CSI reference resource, occurrence of NZP CSI-RS associated with the CSI resource setting.

[0218] For example, if the higher layer parameter timeRestrictionForInterferenceMeasurements is set to "notConfigured", the UE derives the interference measurements for computing CSI value reported in uplink slot n'based on only the CSI-IM and / or NZP CSI-RS for interference measurement no later than the CSI reference resource associated with the CSI resource setting.

[0219] For example, if the higher layer parameter timeRestrictionForInterferenceMeasurements in CSI-ReportConfig is set to "Configured", the UE shall derive the interference measurements for computing the CSI value reported inuplink slot n'based on the most recent, no later than the CSI referenceresource,occasion of CSI-IM and / or NZP CSI-RS for interference measurementassociated with the CSI resource setting).

[0220] The definition / determination method of the time domain of the CSI reference resource (eg, the CSI reference resource for one serving cell) is as follows.

[0221] In the time domain, the CSI reference resource corresponding to a CSI report (for example, a CSI report in an uplink time slot n') is defined as: a single downlink time slot Here, K offset is a high-level configuration parameter, and is the parameter K offset For FR1 (frequency range 1), The value of is 0. For example, K offset =K ceIl,offset -K UE,offset , where K cell,offset Can be configured by higher-level parameters (e.g., cellSpecificKoffset) and / or K UE,offsetIt can be indicated by a MAC-CE command (for example, by indicating the differential K offset MAC-CE indication); if the corresponding parameters are not provided (otherwise, if not respectively provided), then K cell,offset =0orK UE,offset = 0. Here, Among them, μ DL and μ UL These are the subcarrier spacing configurations for downlink and uplink, respectively (for cells that send uplink and downlink) and μ offset It is determined based on high-level configured parameters (e.g., ca-SlotOffset).

[0222] Taking the first CSI reporting as an example, when the first CSI reporting is a periodic CSI reporting or a semi-continuous CSI reporting, n CSI_ref The definition / determination method is as follows:

[0223] When the number of resources corresponding to the first CSI report is less than or equal to a specific value (for example, the first CSI report corresponds to a single resource), then n CSI_ref is greater than or equal to The smallest value greater than or equal to Optionally, the resource may be a CSI-RS / SSB resource. Optionally, the resource may be used for channel measurement.

[0224] When the number of resources corresponding to the first CSI report is greater than or equal to a specific value (for example, a single resource corresponding to the first CSI report), then n CSI_ref is greater than or equal to The smallest value greater than or equal to Optionally, the resource may be a CSI-RS / SSB resource. Optionally, the resource may be used for channel measurement.

[0225] Taking the first CSI report as an example, when the first CSI report is a non-periodic CSI report, n CSI_refThe definition / determination method is as follows:

[0226] If the UE is indicated by the DCI to report CSI in the same slot as the CSI request (e.g., the CSI request is indicated / carried by the DCI), n CSI_ref Refers to the reference resource in the same valid downlink time slot as the corresponding CSI request; otherwise, n CSI_ref is greater than or equal to The minimum value of time slot nn CSI_ref Corresponding to the effective downlink time slot (n CSI_ref is such that the reference resource is in the same validdownlink slot as the corresponding CSI request,otherwisen CSI_ref is the smallest value greater than or equal to such that slot nn CSI_ref corresponds to a valid downlink slot). Optionally, the description / determination method of Z' refers to Embodiment 1. Here, Refers to / indicates the number of symbols per time slot.

[0227] Optionally, a timeslot in a cell (eg, a serving cell) may be considered as a valid downlink timeslot if at least one of the following conditions is met:

[0228] The time slot includes at least one higher layer configured downlink or flexible symbol.

[0229] The timeslot does not fall within a configured measurement gap. Optionally, the configured measurement gap is for the UE.

[0230] Optionally, (for n CSI_refFor the definition / determination of n, the number of resources corresponding to the first CSI report is less than or equal to a specific value, which means that the number of resources corresponding to at least one (or each) of the multiple first sub-configurations or second sub-configurations is less than or equal to a specific value (or corresponds to a single resource). CSI_ref (Definition / determination) that the number of resources corresponding to the first CSI report is less than or equal to a specific value means that, when the first condition or the second condition is met, the number of resources corresponding to at least one (or each) sub-configuration of multiple first sub-configurations or second sub-configurations is less than or equal to a specific value (or, corresponding to a single resource).

[0231] Optionally, (for n CSI_ref For the definition / determination of the first CSI reporting, the number of resources corresponding to the first CSI reporting is greater than or equal to a specific value, which means that the number of resources corresponding to at least one (or each) of the multiple first sub-configurations or the second sub-configurations is greater than or equal to a specific value (or corresponds to multiple resources). Optionally, (for n CSI_ref (For the definition / determination of the first CSI report, the number of resources corresponding to 1 means that, when the first condition or the second condition is met, the number of resources corresponding to at least one (or each) sub-configuration of multiple first sub-configurations or second sub-configurations is or equal to a specific value (or, corresponds to a single resource).

[0232] Optionally, the specific value may be predefined. For example, the specific value is one of 1, 2, 3, and 4. Optionally, the specific value may be based on UE capabilities. For example, the specific value is indicated by capability signaling reported by the UE. Optionally, the specific value may be indicated by a base station. For example, the specific value is indicated by at least one of RRC, MAC-CE, and DCI signaling.

[0233] The advantage of this is that the CSI reference resource (for example, its related parameter n) can be determined based on the number of resources corresponding to at least one (or each) sub-configuration corresponding to a CSI report. CSI_ref ), clarifies the method for determining the CSI reference resources reported by CSI in the case of multiple sub-configurations, thereby improving the reliability of the system.

[0234] When the CSI report corresponds to one or more sub-configurations, (especially when determining the CSI reference resources corresponding to the CSI report) it is unclear which resources the sub-configuration corresponds to. The method provided below can clarify the resources corresponding to the sub-configuration (or the number of corresponding resources), avoid inconsistent understanding between the terminal device and the network device, and improve the reliability of the communication system. Optionally, the resources corresponding to the sub-configuration are determined based on the indication of the sub-configuration (for example, the indicated parameters); or, at least one (or each) of the multiple first sub-configurations or the second sub-configuration corresponds to a resource, which is determined based on the resource set corresponding to the CSI reporting configuration information. Optionally, when the first condition is met, the sub-configuration corresponds to a resource, which is determined based on the resource set corresponding to the CSI reporting configuration information. Optionally, when the second condition is met, the sub-configuration corresponds to a resource (or a single resource) determined based on the indication of the sub-configuration (for example, the indicated parameters).

[0235] For example, the resources corresponding to a sub-configuration can be determined by one or more resources indicated in the sub-configuration. The one or more resources are, for example, indicated by a list parameter. For example, the resources corresponding to a sub-configuration can be determined by a resource set included / associated / corresponding to the CSI reporting configuration information. For example, the number of resources included in the resource set is 1. For example, the number of resources included in the resource set is greater than 1. Optionally, the set corresponds to a resource set associated / corresponding to the CSI reporting configuration information (for example, NZP-CSI-RS-ResourceSet). Optionally, the resource set is in the CSI resource setting (CSI resource setting) corresponding to the CSI reporting configuration information. Optionally, the CSI resource setting is used for channel measurement. For example, the CSI resource setting can be associated / corresponding to a channel measurement resource parameter (for example, resourcesForChannelMeasurement) in the CSI reporting configuration information. The CSI resource setting is, for example, a CSI-ResourceConfig parameter. Optionally, the resource may be a reference signal resource. Optionally, the reference signal resource may be a reference signal. Optionally, the resource includes a CSI-RS resource or a CSI-IM resource. Optionally, the CSI-RS may be a NZP CSI-RS.

[0236] The benefit of Embodiment 3 is that, when one or more sub-configurations are configured for CSI reporting, the definition / determination method of the CSI reference resource corresponding to the CSI reporting of one or more sub-configurations in the time domain is clarified. This method enables the terminal device to perform CSI measurement and / or CSI determination and / or CSI reporting based on a reference signal or measurement resource that is no later than the CSI reference resource. This enables the terminal device to have enough time to process the corresponding reference signal measurement, thereby improving the reliability of the communication system. In addition, clarifying the definition / determination method of the CSI reference resource can help to design the terminal device hardware in a targeted manner, which can reduce the cost of the hardware.

[0237] Embodiment 4

[0238] The UE receives a CSI reporting configuration (e.g., CSI-ReportConfig). Optionally, the CSI reporting configuration information is associated / corresponds to / includes one or more sub-configurations. Optionally, the number (or, total number) of the one or more sub-configurations is L (L≥1, or, L≥2). For example, the CSI reporting configuration information may include a list of sub-configurations. For example, the CSI reporting configuration information may include L sub-configurations. For example, the set of sub-configurations is provided by a high-level parameter (e.g., csi-ReportSubConfigList). Optionally, one / each sub-configuration (in the set of sub-configurations) is identified by an identifier (ID) (e.g., csi-ReportSubConfigID). For example, one / each sub-configuration may be provided with an ID (e.g., csi-ReportSubConfigID) by a high-level parameter.

[0239] Optionally, the method described in this embodiment needs to meet the condition: "The UE is configured with a CSI reporting configuration, and the CSI reporting configuration includes a set of sub-configurations (for example, a set of sub-configurations in a list provided by a high-level parameter csi-ReportSubConfigList)".

[0240] Optionally, the UE reports CSI corresponding to one or more subconfigurations. Optionally, the UE reports CSI corresponding to one or more subconfigurations based on high-level parameters (e.g., reporting quantity parameter reportQuantity) corresponding to the CSI reporting configuration. Optionally, the one or more subconfigurations may be / may include N (indicated / triggered) subconfigurations out of L subconfigurations, where 1≤N≤L. Optionally, the N subconfigurations may be interchangeable with "triggered subconfiguration", or "indicated subconfiguration", or "subconfiguration in which the corresponding CSI is reported". In the following description, "one subconfiguration / each subconfiguration" may mean "one subconfiguration / each subconfiguration among N subconfigurations", or "one subconfiguration / each subconfiguration among a group of subconfigurations (e.g., L subconfigurations)".

[0241] The following describes how to configure the parameters in the sub-configuration.

[0242] Optionally, the codebook (of the CSI reporting configuration) / codebook corresponding to the UE (e.g., codebook type parameter codebookType) may be configured as a type-1 single-panel codebook (e.g., the codebook type parameter codebookType is set to 'typeI-SinglePanel') or as a type-1 multi-panel codebook (e.g., parameter codebookType is set to 'typeI-MultiPanel'). For example, the UE expects the codebook type parameter codebookType to be set to 'typeI-SinglePanel' or 'typeI-MultiPanel'. If the UE provides / reports / indicates the capability of supporting mixed codebook combination in a slot, then one / each sub-configuration (corresponding codebook) may include (or be configured) a codebook type parameter (codebookType) set to 'typeI-SinglePanel' or 'typeI-MultiPanel'.

[0243] Optionally, when the following tenth condition is met, a sub-configuration / each sub-configuration may include (or be configured with) a type I single panel codebook i2 subset restriction parameter (typeI-SinglePanel-codebookSubsetRestriction-i2). Here, the tenth condition includes at least one of the following:

[0244] The UE is configured with a CSI reporting configuration, which includes a set of sub-configurations (e.g., a set of sub-configurations in a list provided by a higher layer parameter csi-ReportSubConfigList);

[0245] The PMI format indicator parameter corresponding to / configured by the CSI reporting configuration is set to 'wideband PMI' (pmi-FormatIndicator set to 'widebandPMI');

[0246] (this sub-configuration / each sub-configuration / CSI reporting configuration) corresponds to wideband CSI;

[0247] The higher-layer parameters corresponding to / included in the CSI reporting configuration (eg, the reporting quantity parameter reportQuantity) are set to 'cri-RI-i1-CQI';

[0248] The configured (or included) codebook type parameter (of this sub-configuration / each sub-configuration / CSI reporting configuration) is set to 'typeI-SinglePanel';

[0249] The subconfiguration / each subconfiguration is configured with an antenna port subset, or the subconfiguration / each subconfiguration is configured with a port-subset indicator parameter (port-subsetIndicator).

[0250] Optionally, a sub-configuration determines the CSI corresponding to the sub-configuration based on the i2 subset restriction parameter of the type-one single-panel codebook (in which the sub-configuration is configured). For example, the randomly selected precoder based on which the CQI corresponding to a sub-configuration is based is determined based on the i2 subset restriction parameter of the type-one single-panel codebook.

[0251] Optionally, if a sub-configuration (e.g., CSI reporting sub-configuration parameter csi-ReportSubConfig) is configured, for a corresponding CSI sub-report, (where applicable), the bitwidth of a CSI field of the CSI sub-report is determined taking configurations in CSI-ReportSubConfig(whenapplicable)).

[0252] Optionally, when the tenth condition is met, all bits in the i2 subset restriction parameter of the type one single panel codebook are 1. Optionally, when the tenth condition is met, all bits in the i2 subset restriction parameter of the type one single panel codebook in the codebook configuration parameter (CodebookConfig) corresponding to the CSI report are 1. Optionally, when the tenth condition is met, the UE determines / assumes / expects that all bits in the i2 subset restriction parameter of the type one single panel codebook (in the codebook configuration parameter corresponding to the CSI report) are 1. For example, the i2 subset restriction parameter of the type one single panel codebook forms a bit sequence b 15 ,…,b 1 ,b 0 , where b 0 refers to the least significant bit and b 15 The most significant bit (b 0 is the Least Significant Bit(LSB)and b 15 For example, all bits in the i2 subset restriction parameter of the type 1 single-panel codebook are 1, which means that b 15 ,…,b 1 ,b 0 Both are 1.

[0253] Optionally, when the tenth condition is met and a subconfiguration / each subconfiguration does not include (or is not configured) an i2 subset restriction parameter (typeI-SinglePanel-codebookSubsetRestriction-i2) of a type-one single-panel codebook, the UE determines / assumes that all bits in the i2 subset restriction parameter of the type-one single-panel codebook corresponding to the subconfiguration / each subconfiguration are 1. For example, the bit sequence b formed by the i2 subset restriction parameter of the type-one single-panel codebook 15 ,…,b 1 ,b 0 , where b 0 refers to the least significant bit and b 15 The most significant bit (b 0 is the Least Significant Bit(LSB)andb 15 For example, all bits in the i2 subset restriction parameter of the type 1 single-panel codebook are 1, which means that b 15 ,…,b 1 ,b 0 Both are 1.

[0254] Optionally, when the tenth condition is met and a subconfiguration / each subconfiguration does not include (or is not configured) an i2 subset restriction parameter (typeI-SinglePanel-codebookSubsetRestriction-i2) of a type one single-panel codebook, the codebook index (codebookindex) i2 corresponding to the subconfiguration / each subconfiguration is not restricted (or, the codebook index i2 corresponding to the subconfiguration / each subconfiguration does not correspond to a precoding that is not allowed to be used for CQI calculation).

[0255] Embodiment 4 provides a configuration method / usage method of a high-level parameter (e.g., an i2 subset restriction parameter of a type 1 single-panel codebook) so that the parameter is used in a CSI reporting configuration including a set of sub-configurations when corresponding conditions are met, or a predefined behavior is performed. Thus, the behavior of CSI reporting is clarified and the performance of the communication system is improved.

[0256] Embodiment 5

[0257] The UE receives a CSI reporting configuration (e.g., CSI-ReportConfig). Optionally, the CSI reporting configuration information is associated / corresponds to / includes one or more sub-configurations. Optionally, the number (or, total number) of the one or more sub-configurations is L (L≥1, or, L≥2). For example, the CSI reporting configuration information may include a list of sub-configurations. For example, the CSI reporting configuration information may include L sub-configurations. For example, the set of sub-configurations is provided by a high-level parameter (e.g., csi-ReportSubConfigList). Optionally, one / each sub-configuration (in the set of sub-configurations) is identified by an identifier (ID) (e.g., csi-ReportSubConfigID). For example, one / each sub-configuration may be provided with an ID (e.g., csi-ReportSubConfigID) by a high-level parameter.

[0258] Optionally, the method described in this embodiment needs to meet the condition: "The UE is configured with a CSI reporting configuration, and the CSI reporting configuration includes a set of sub-configurations (for example, a set of sub-configurations in a list provided by a high-level parameter csi-ReportSubConfigList)".

[0259] Optionally, the UE reports CSI corresponding to one or more subconfigurations. Optionally, the UE reports CSI corresponding to one or more subconfigurations based on high-level parameters (e.g., reporting quantity parameter reportQuantity) corresponding to the CSI reporting configuration. Optionally, the one or more subconfigurations may be / may include N (indicated / triggered) subconfigurations out of L subconfigurations, where 1≤N≤L. Optionally, the N subconfigurations may be interchangeable with "triggered subconfiguration", or "indicated subconfiguration", or "subconfiguration in which the corresponding CSI is reported". In the following description, "one subconfiguration / each subconfiguration" may mean "one subconfiguration / each subconfiguration among N subconfigurations", or "one subconfiguration / each subconfiguration among a group of subconfigurations (e.g., L subconfigurations)".

[0260] The following describes how to configure the parameters in the sub-configuration.

[0261] Optionally, the codebook (of the CSI reporting configuration) / codebook corresponding to the UE (e.g., codebook type parameter codebookType) may be configured as a type-1 single-panel codebook (e.g., the codebook type parameter codebookType is set to 'typeI-SinglePanel') or as a type-1 multi-panel codebook (e.g., parameter codebookType is set to 'typeI-MultiPanel'). For example, the UE expects the codebook type parameter codebookType to be set to 'typeI-SinglePanel' or 'typeI-MultiPanel'. If the UE provides / reports / indicates the capability of supporting mixed codebook combination in a slot, then one / each sub-configuration (corresponding codebook) may include (or be configured) a codebook type parameter (codebookType) set to 'typeI-SinglePanel' or 'typeI-MultiPanel'.

[0262] Optionally, when the following eleventh condition is met, a sub-configuration / each sub-configuration may include (or be configured with) a codebook mode parameter (codebookMode). Here, the eleventh condition includes at least one of the following:

[0263] The UE is configured with a CSI reporting configuration, which includes a set of sub-configurations (e.g.,

[0264] A set of sub-configurations from a list provided by the high-level parameter csi-ReportSubConfigList);

[0265] The CSI reporting configuration includes at least one sub-configuration in which the corresponding codebook type parameter is set to "type one single panel" and at least one sub-configuration in which the corresponding codebook type parameter is set to "type one multi-panel";

[0266] The CSI reporting configuration includes / is configured with a mixed set of sub-configurations, wherein the codebook type parameter corresponding to each sub-configuration in a portion of the sub-configurations is set to "Type-Single Panel", and,

[0267] The codebook type parameter corresponding to each sub-configuration in another part of the sub-configuration is set to "type one multi-panel" (the CSI-ReportConfig that contains a mix of sub-configuration(s)each corresponding to high layer parameter codebookType set to'typeI-SinglePanel'and some other sub-configuration(s)each corresponding to high layer parametercodebookType set to'typeI-MultiPanel');

[0268] The subconfiguration / each subconfiguration is configured with an antenna port subset, or the subconfiguration / each subconfiguration is configured with a port-subset indicator parameter (port-subsetIndicator).

[0269] Optionally, a sub-configuration determines the CSI corresponding to the sub-configuration based on a codebook mode parameter (configured for the sub-configuration).

[0270] Optionally, if a sub-configuration (e.g., CSI reporting sub-configuration parameter csi-ReportSubConfig) is configured, for a corresponding CSI sub-report, (where applicable), the bitwidth of a CSI field of the CSI sub-report is determined taking configurations in CSI-ReportSubConfig(whenapplicable)).

[0271] Optionally, when the eleventh condition is met and a subconfiguration / each subconfiguration does not include (or is not configured) a codebook mode parameter (codebookMode), the UE determines / assumes that the codebook mode parameter corresponding to the subconfiguration / each subconfiguration is equal to 1, or the codebook mode parameter corresponding to the subconfiguration / each subconfiguration is equal to 2.

[0272] Embodiment 5 provides a configuration method / usage method of a high-level parameter (e.g., a codebook mode parameter) so that the parameter is used in a CSI reporting configuration including a set of sub-configurations when corresponding conditions are met, or a predefined behavior is executed. Thus, the behavior of CSI reporting is clarified and the performance of the communication system is improved.

[0273] Embodiment 6

[0274] The UE receives a CSI reporting configuration (e.g., CSI-ReportConfig). Optionally, the CSI reporting configuration information is associated / corresponds to / includes one or more sub-configurations. Optionally, the number (or, total number) of the one or more sub-configurations is L (L≥1, or, L≥2). For example, the CSI reporting configuration information may include a list of sub-configurations. For example, the CSI reporting configuration information may include L sub-configurations. For example, the set of sub-configurations is provided by a high-level parameter (e.g., csi-ReportSubConfigList). Optionally, one / each sub-configuration (in the set of sub-configurations) is identified by an identifier (ID) (e.g., csi-ReportSubConfigID). For example, one / each sub-configuration may be provided with an ID (e.g., csi-ReportSubConfigID) by a high-level parameter.

[0275] Optionally, the method described in this embodiment needs to meet the condition: "The UE is configured with a CSI reporting configuration, and the CSI reporting configuration includes a set of sub-configurations (for example, a set of sub-configurations in a list provided by a high-level parameter csi-ReportSubConfigList)".

[0276] Optionally, the UE reports CSI corresponding to one or more subconfigurations. Optionally, the UE reports CSI corresponding to one or more subconfigurations based on high-level parameters (e.g., reporting quantity parameter reportQuantity) corresponding to the CSI reporting configuration. Optionally, the one or more subconfigurations may be / may include N (indicated / triggered) subconfigurations out of L subconfigurations, where 1≤N≤L. Optionally, the N subconfigurations may be interchangeable with "triggered subconfiguration", or "indicated subconfiguration", or "subconfiguration in which the corresponding CSI is reported". In the following description, "one subconfiguration / each subconfiguration" may mean "one subconfiguration / each subconfiguration among N subconfigurations", or "one subconfiguration / each subconfiguration among a group of subconfigurations (e.g., L subconfigurations)".

[0277] The following describes how to configure the parameters in the sub-configuration.

[0278] Optionally, the codebook (of the CSI reporting configuration) / codebook corresponding to the UE (e.g., codebook type parameter codebookType) may be configured as a type-1 single-panel codebook (e.g., the codebook type parameter codebookType is set to 'typeI-SinglePanel') or as a type-1 multi-panel codebook (e.g., parameter codebookType is set to 'typeI-MultiPanel'). For example, the UE expects the codebook type parameter codebookType to be set to 'typeI-SinglePanel' or 'typeI-MultiPanel'. If the UE provides / reports / indicates the capability of supporting mixed codebook combination in a slot, then one / each sub-configuration (corresponding codebook) may include (or be configured) a codebook type parameter (codebookType) set to 'typeI-SinglePanel' or 'typeI-MultiPanel'.

[0279] Optionally, one / each sub-configuration may be configured with a port subset (e.g., an antenna port subset). For example, one / each sub-configuration may be configured with a port subset via a higher-level parameter (e.g., port-subsetIndicator). Optionally, the higher-level parameter includes / configures / indicates a bitmap (e.g., a bit sequence) including a P m (P m ≥1) bits, where P m It refers to the number of CSI-RS resource ports configured by a high-level parameter (e.g., nrofPorts). Here, CSI-RS resources refer to CSI-RS resources in the first resource set. Optionally, the bit sequence can be p 0 ,p 1 ,...,p Pm-1 , where p 0 refers to the most significant bit (MSB) and p Pm-1 Refers to the least significant bit (LSB). Bit p iCorresponding to antenna port 3000+i. Optionally, the corresponding antenna port indicated / represented by bit value 0 (in the high-layer parameter port-subsetIndicator) is disabled for the sub-configuration. Optionally, the corresponding antenna port indicated / represented by bit value 1 (in the high-layer parameter port-subsetIndicator) is enabled for the sub-configuration, and these (enabled) ports belong to the antenna port subset of the sub-configuration. For the derivation of PMI, antenna ports corresponding to all bits with value of 1 in high layer parameter (eg, port-subsetIndicator) are mapped to consecutive antenna ports starting at CSI-RS antenna port 3000 in increasing order of the bit position in high layer parameter (eg, port-subsetIndicator) Optionally, the antenna port subset (or, antenna port parameters) may be used to determine the CSI of the resources corresponding to the corresponding subconfiguration (or, resource subset, or, resource subset corresponding to the third parameter).

[0280] Optionally, if one / each sub-configuration is configured with an antenna port subset, the sub-configuration may be configured with a rank indicator (RI) restriction (e.g., a parameter for restricting RI). Optionally, a high-level parameter (e.g., reportQuantity) in a CSI reporting configuration corresponding to / associated with one / each sub-configuration (optionally, the CSI reporting configuration is used to report CQI) is set to 'cri-RI-PMI-CQI' or 'cri-RI-LI-PMI-CQI', and / or, a corresponding / associated CSI-RS resource group (for channel measurement) is configured with two groups (e.g., N ABC =2) and N com resource pairs, the CRI reported by the sub-configuration corresponding to / associated with it corresponds to N com One of the resource pairs (or one entry), and / or the combination of the reported ranks corresponding to / associated with the sub-configuration is {v 1 ,ν2}. Optionally, ν 1 corresponds to / represents / refers to the value / number of the rank (reported corresponding to group 1); ν 2 corresponds to / represents / refers to the value / number of the rank (reported corresponding to group 2). Optionally, ν 1 ≥1 and ν 2 ≥1. The rank combination can be one of {1,1}, {1,2}, {2,1}, {2,2}. Optionally, the two RIs can be reported by a joint RI index. The joint RI index corresponds to one of the rank combinations {1,1}, {1,2}, {2,1}, {2,2}. Optionally, the RI restriction parameter can be used to determine the CSI of the resources (or, the resource subset, or, the resource subset corresponding to the third parameter) corresponding to the corresponding sub-configuration.

[0281] Optionally, if one / each sub-configuration is configured with an antenna port subset, the sub-configuration may be configured with at least one of a parameter for determining N1 and N2 (and / or codebook subset restriction), a parameter for determining N1, N2 and Ng (and / or codebook subset restriction), and a parameter of Ng. For example, when the codebook type (of the sub-configuration or the CSI reporting configuration corresponding to) is set to a type-one single-panel codebook (for example, if the high-level parameter codebookType is set to 'typeI-SinglePanel'), the sub-configuration may be configured with high-level parameters n1-n2 (if the number of antenna port subsets is greater than 2). For example, when the codebook type is set to a type-one multi-panel codebook (for example, if the high-level parameter codebookType is set to 'typeI-MultiPanel'), the sub-configuration may be configured with high-level parameters ng-n1-n2 (if the number of antenna port subsets is greater than 2). For example, the sub-configuration may be configured with a high-level parameter twoTX-CodebookSubsetRestriction (if the number of antenna port subsets is equal to 2). Optionally, the parameters for determining N1 and N2, the parameters for determining N1, N2 and N g Parameters used to determine N g At least one of the parameters may be used to determine the CSI of the resources corresponding to the corresponding sub-configuration (or, a subset of resources, or, a subset of resources corresponding to a third parameter).

[0282] Optionally, one / each sub-configuration may be configured with a power parameter (e.g., a parameter for indicating a power offset). Optionally, the power parameter is used to indicate / determine a power offset (of a CSI-RS resource), wherein the power offset refers to an additional PDSCH relative to CSI-RS (EPRE) power offset (a power offset for PDSCH relative to CSI-RS additional to powerControlOffset of the CSI-RS resource) based on a higher-layer parameter (e.g., powerControlOffset) corresponding to the CSI-RS resource. Optionally, the power parameter may be used to determine the CSI of a resource (or a subset of resources, or a subset of resources corresponding to a third parameter) corresponding to the corresponding sub-configuration.

[0283] The following describes how to use the parameters in the sub-configuration.

[0284] Optionally, the CSI for a sub-configuration is determined according to the parameters configured in the sub-configuration when applicable; otherwise, according to the parameters configured in CodebookConfig for the CSI-ReportConfig.

[0285] Optionally, if a parameter is configured in a codebook configuration parameter in a CSI reporting configuration, and / or the parameter (or a parameter corresponding to the parameter, or a parameter of the same type as the parameter) is not configured in a sub-configuration, the parameter applies to the sub-configuration (CSI determination, or reported CSI); otherwise (for example, if a parameter is configured in a codebook configuration parameter in a CSI reporting configuration, and / or the parameter (or a parameter corresponding to the parameter, or a parameter of the same type as the parameter) is configured in a sub-configuration), the parameter configured in the sub-configuration applies to the sub-configuration (CSI determination, or reported CSI).

[0286] Optionally, if a parameter is configured in a codebook configuration parameter in a CSI reporting configuration, and / or the parameter (or a parameter corresponding to the parameter, or a parameter of the same type as the parameter) is not configured in a sub-configuration, the parameter applies to the sub-configuration (CSI determination, or reported CSI); otherwise (for example, if a parameter is configured in a codebook configuration parameter in a CSI reporting configuration, and / or the parameter (or a parameter corresponding to the parameter, or a parameter of the same type as the parameter) is configured in a sub-configuration), the parameter configured in the sub-configuration applies to the sub-configuration (CSI determination, or reported CSI).

[0287] Optionally, if a parameter is configured in a codebook configuration parameter in a CSI reporting configuration, and / or the parameter (or a parameter corresponding to the parameter, or a parameter of the same type as the parameter) is not configured in a sub-configuration, the CSI of the sub-configuration (or the reported CSI of the sub-configuration) is determined based on the parameter; otherwise (for example, if a parameter is configured in a codebook configuration parameter in a CSI reporting configuration, and / or the parameter (or a parameter corresponding to the parameter, or a parameter of the same type as the parameter) is configured in a sub-configuration), the CSI of the sub-configuration (or the reported CSI of the sub-configuration) is determined based on the parameter configured in the sub-configuration.

[0288] Embodiment 6 provides a configuration method / usage method of high-level parameters so that the sub-configuration can determine the corresponding CSI based on the correct parameters. Thus, the behavior of CSI reporting is clarified and the performance of the communication system is improved.

[0289] Embodiment 7

[0290] For CSI reporting configuration (For CSI-ReportConfig), when the UE is configured with cell discontinuous transmission DTX (discontinuous transmission) and / or cell DTX is activated and / or configured with DRX, after at least one of the CSI report (re) configuration, serving cell activation, BWP change, or activation of SP-CSI), the UE reports a CSI report only after receiving at least one CSI-RS transmission opportunity (and / or, a CSI-RS and / or CSI-IM resource transmission opportunity for interference measurement) within the cell DTX activation interval (or, within the same cell DTX activation interval) and / or within the DRX activation interval (and / or, within the same DRX activation interval) not later than the CSI reference resource, otherwise, the UE reports a CSI report only after receiving at least one CSI-RS transmission opportunity (and / or, a CSI-RS and / or CSI-IM resource transmission opportunity for interference measurement) within the cell DTX activation interval (or, within the same cell DTX activation interval) and / or within the DRX activation interval (and / or, within the same DRX activation interval) not later than the CSI reference resource, otherwise, the UE reports a CSI report only after receiving at least one CSI-RS transmissionoccasion(and / or one CSI-RS and / or CSI-IM resource transmission occasion for interference measurement)no later than the CSI reference resource and in the active period(or in the same active period)of cell DTX and / or in DRX ActiveTime(and / or in the same DRX Active Time)and drops the report otherwise).Optionally, the one CSI-RS transmission opportunity refers to / includes one CSI-RS transmission opportunity for each periodic CSI-RS resource or semi-persistent CSI-RS resource (in the corresponding CSI-RS resource set or in the corresponding resource pair) for channel measurement (and / or interference measurement)). Optionally, one CSI-RS and / or CSI-IM resource transmission occasion includes / refers to one CSI-RS and / or CSI-IM resource transmission occasion for the (periodicor semi-persistent) CSI-RS and / or CSI-IM resource. Optionally, one CSI-RS and / or CSI-IM resource transmission occasion includes / refers to one CSI-RS and / or CSI-IM resource transmission occasion for the (periodic or semi-persistent) CSI-RS and / or CSI-IM resource in the corresponding resource set.Optionally, the codebook type parameter (codebookType) configured in the CSI reporting configuration is set to 'type II joint transmission' or, is set to 'type II joint transmission port selection' (set to 'type II-CJT-r18' or 'type II-CJT-PortSelection-r18'), and / or, the reporting quantity parameter associated with the CSI reporting configuration includes at least 'rank indicator' (CSI report configuration in CSI-ReportConfigassociated with the higher layer parameter reportQuantity comprising at least 'RI'), and / or, the reporting quantity parameter associated with the CSI reporting configuration is set to 'cri-RI-PMI-CQI' (CSI-ReportConfig associated with the higher layer parameter reportQuantity set to 'cri-RI-PMI-CQI'). Optionally, the CSI-RS resource set for channel measurement corresponding to the CSI reporting configuration is configured with two resource groups and N resource pairs (CSI-RS Resource Set for channel measurement corresponding to CSI-ReportConfig is configured with two Resource Groups and N Resource Pairs). Here, N≥1.

[0291] In this embodiment, DRX may be UE DRX or C-DRX (connected mode DRX).

[0292] Embodiment 7 provides a method for determining whether CSI is reported, so that CSI reporting can be correctly sent or not sent when cell DTX / DRX is configured and / or DRX is configured and / or specific conditions are met. Thus, the behavior of CSI reporting is clarified and the performance of the communication system is improved.

[0293] Embodiment 8

[0294] For CSI reporting configuration (For CSI-ReportConfig), when the UE is configured with cell discontinuous transmission DTX (discontinuous transmission) and / or cell DTX is activated and / or configured with DRX, after at least one of the CSI report (re) configuration, serving cell activation, BWP change, or activation of SP-CSI), the UE reports a CSI report only after receiving at least one or more CSI-RS transmission opportunities (and / or, a CSI-RS and / or CSI-IM resource transmission opportunity for interference measurement) within the cell DTX activation interval (or, within the same cell DTX activation interval) and / or within the DRX activation interval (and / or, within the same DRX activation interval) not later than the CSI reference resource, otherwise, the UE reports a CSI report only after receiving at least one or more CSI-RS transmission occasion (and / or one CSI-RS and / or CSI-IM occasion for interference measurement) no later than the CSI reference resource and in the active period (or in the same active period) and / or in DRX Active Time (or in the same DRX Active Time) and drops the report otherwise). Optionally, the one or more CSI-RS transmission opportunities refer to / include at least one of the following:

[0295] ·K p Semi-persistent continuous CSI-RS transmission opportunities (K) for each CSI-RS resource (in the corresponding CSI-RS resource group) used for channel measurement (and / or interference measurement) psemi-persistent consecutive CSI-RS transmission occasion for each CSI-RS resource (in the corresponding CSI-RSResource Set) for channel measurement (and / or interference measurement)). Optionally, K p is indicated by UE capability (or UE capability signaling). p The value range is 1, 2, 4, or K p ∈{1,2,4};

[0296] ·K p periodic continuous CSI-RS transmission opportunities (K) for each CSI-RS resource (in the corresponding CSI-RS resource group) used for channel measurement (and / or interference measurement) p consecutive periodic CSI-RS transmission occasions for each CSI-RS resource (in the corresponding CSI-RSResource Set) for channel measurement (and / or interference measurement)). Optionally, K p is indicated by UE capability (or UE capability signaling). p The value range is 1, 2, 4, or K p ∈{1,2,4}.

[0297] Optionally, one CSI-RS and / or CSI-IM resource transmission occasion includes / refers to one CSI-RS and / or CSI-IM resource transmission occasion for the (periodic or semi-persistent) CSI-RS and / or CSI-IM resource. Optionally, one CSI-RS and / or CSI-IM resource transmission occasion includes / refers to one CSI-RS and / or CSI-IM resource transmission occasion for the (periodic or semi-persistent) CSI-RS and / or CSI-IM resource in the corresponding resource set. Optionally, a codebook type parameter (codebookType) configured in the CSI reporting configuration is set to 'type II Doppler' or, is set to 'type II Doppler port selection' (set to 'type II-Doppler-r18' or 'type II-Doppler-PortSelection-r18'), and / or, a reporting quantity parameter associated with the CSI reporting configuration includes at least a 'rank indicator' (CSIreport configuration in CSI-ReportConfig associated with the higher layer parameter reportQuantity comprising at least 'RI'), and / or, a reporting quantity parameter associated with the CSI reporting configuration is set to 'cri-RI-PMI-CQI' (CSI-ReportConfig associated with the higher layer parameter reportQuantity set to 'cri-RI-PMI-CQI').

[0298] In this embodiment, DRX may be UE DRX or C-DRX (connected mode DRX).

[0299] Embodiment 8 provides a method for determining whether CSI is reported, so that CSI reporting can be correctly sent or not sent when cell DTX / DRX is configured and / or DRX is configured and / or specific conditions are met. Thus, the behavior of CSI reporting is clarified and the performance of the communication system is improved.

[0300] Embodiment 9

[0301] For CSI reporting configuration, the UE is configured with cell DTX and / or configured with DRX and / or the cell DTX is activated and the UEreports a CSI report only if receiving at least one CSI-RS transmission occasion (and / or one CSI-RS and / or CSI-IM resource transmission opportunity for interference measurement)in active periods (or same active period)of cell DTXand / or in DRX Active Time (and / or in the same DRX Active Period) not later than the CSI reference resource, otherwise, the UE configured with cell DTX discards the report (For CSI-ReportConfig, the UE is configured with cell DTX and / or configured with DRX and / or the cell DTX isactivated and the UEreports a CSI report only if receiving at least one CSI-RS transmission occasion (and / or one CSI-RS and / or CSI-IM occasion for interference measurement)in active periods (or same active period)of cell DTXand / or in DRX Active Time (and / or in the same DRX Active Time) no later than CSI reference resource, and the UE configured with cell DTX drops the CSIreport otherwise).

[0302] Optionally, the one CSI-RS transmission opportunity refers to / includes one CSI-RS transmission opportunity for each periodic CSI-RS resource or semi-persistent CSI-RS resource (in the corresponding CSI-RS resource set or in the corresponding resource pair) for channel measurement (and / or interference measurement)). Optionally, one CSI-RS and / or CSI-IM resource transmission occasion includes / refers to one CSI-RS and / or CSI-IM resource transmission occasion for the (periodicor semi-persistent) CSI-RS and / or CSI-IM resource. Optionally, one CSI-RS and / or CSI-IM resource transmission occasion includes / refers to one CSI-RS and / or CSI-IM resource transmission occasion for the (periodic or semi-persistent) CSI-RS and / or CSI-IM resource in the corresponding resource set.Optionally, the codebook type parameter (codebookType) configured in the CSI reporting configuration is set to 'type II joint transmission' or, is set to 'type II joint transmission port selection' (set to 'type II-CJT-r18' or 'type II-CJT-PortSelection-r18'), and / or, the reporting quantity parameter associated with the CSI reporting configuration includes at least 'rank indicator' (CSI report configuration in CSI-ReportConfigassociated with the higher layer parameter reportQuantity comprising at least 'RI'), and / or, the reporting quantity parameter associated with the CSI reporting configuration is set to 'cri-RI-PMI-CQI' (CSI-ReportConfig associated with the higher layer parameter reportQuantity set to 'cri-RI-PMI-CQI'). Optionally, the CSI-RS resource set for channel measurement corresponding to the CSI reporting configuration is configured with two resource groups and N resource pairs (CSI-RS Resource Set for channel measurement corresponding to CSI-ReportConfig is configured with two Resource Groups and N Resource Pairs). Here, N≥1.

[0303] In this embodiment, DRX may be UE DRX or C-DRX (connected mode DRX).

[0304] Embodiment 9 provides a method for determining whether CSI is reported, so that CSI reporting can be correctly sent or not sent when cell DTX / DRX is configured and / or DRX is configured and / or specific conditions are met. Thus, the behavior of CSI reporting is clarified and the performance of the communication system is improved.

[0305] Embodiment 10

[0306] For CSI reporting configuration, the UE is configured with cell DTX and / or configured with DRX and / or the cell DTX is activated and the UE reports a CSI report only if receiving at least one or more CSI-RS transmission occasion (and / or one CSI-RS and / or CSI-IM resource transmission opportunity for interference measurement) in active periods (or same active period) of cell DTX and / or in DRX Active Time (and / or in the same DRX activation interval) not later than the CSI reference resource. Otherwise, the UE configured with cell DTX discards the report (For CSI-ReportConfig, the UE is configured with cell DTX and / or configured with DRX and / or the cell DTX isactivated and the UEreports a CSI report only if receiving at least one or more CSI-RS transmission occasion (and / or one CSI-RS and / or CSI-IM occasion for interference measurement) in active periods (or same active period) of cell DTX and / or in DRX Active Time (and / or in the same DRX Active Time) no later than CSI reference resource, and the UE configured with cell DTX drops the CSI report otherwise). Optionally, the one or more CSI-RS transmission opportunities refer to / include at least one of the following:

[0307] ·K p Semi-persistent continuous CSI-RS transmission opportunities (K) for each CSI-RS resource (in the corresponding CSI-RS resource group) used for channel measurement (and / or interference measurement) psemi-persistent consecutive CSI-RS transmission occasion for each CSI-RS resource (in the corresponding CSI-RSResource Set) for channel measurement (and / or interference measurement)). Optionally, K p is indicated by UE capability (or UE capability signaling). p The value range is 1, 2, 4, or K p ∈{1,2,4};

[0308] ·K p periodic continuous CSI-RS transmission opportunities (K) for each CSI-RS resource (in the corresponding CSI-RS resource group) used for channel measurement (and / or interference measurement) p consecutive periodic CSI-RS transmission occasions for each CSI-RS resource (in the corresponding CSI-RSResource Set) for channel measurement (and / or interference measurement)). Optionally, K p is indicated by UE capability (or UE capability signaling). p The value range is 1, 2, 4, or K p ∈{1,2,4}.

[0309] Optionally, one CSI-RS and / or CSI-IM resource transmission occasion includes / refers to one CSI-RS and / or CSI-IM resource transmission occasion for the (periodic or semi-persistent) CSI-RS and / or CSI-IM resource. Optionally, one CSI-RS and / or CSI-IM resource transmission occasion includes / refers to one CSI-RS and / or CSI-IM resource transmission occasion for the (periodic or semi-persistent) CSI-RS and / or CSI-IM resource in the corresponding resource set. Optionally, a codebook type parameter (codebookType) configured in the CSI reporting configuration is set to 'type II Doppler' or, is set to 'type II Doppler port selection' (set to 'type II-Doppler-r18' or 'type II-Doppler-PortSelection-r18'), and / or, a reporting quantity parameter associated with the CSI reporting configuration includes at least a 'rank indicator' (CSIreport configuration in CSI-ReportConfig associated with the higher layer parameter reportQuantity comprising at least 'RI'), and / or, a reporting quantity parameter associated with the CSI reporting configuration is set to 'cri-RI-PMI-CQI' (CSI-ReportConfig associated with the higher layer parameter reportQuantity set to 'cri-RI-PMI-CQI').

[0310] In this embodiment, DRX may be UE DRX or C-DRX (connected mode DRX).

[0311] Embodiment 10 provides a method for determining whether CSI is reported, so that CSI reporting can be correctly sent or not sent when cell DTX / DRX is configured and / or DRX is configured and / or specific conditions are met. Thus, the behavior of CSI reporting is clarified and the performance of the communication system is improved.

[0312] Figure 5 A method 500 performed by a base station according to an embodiment of the present disclosure is shown. The method 500 includes: at 501, the base station sends configuration information for CSI reporting to a user equipment; at 502, the base station receives a CSI report determined based on the configuration information for CSI reporting from the user equipment. Optionally, the base station may receive a CSI calculation delay parameter for a CSI report corresponding to the configuration information for CSI reporting before it receives a CSI report determined based on the configuration information for CSI reporting from the user equipment.

[0313] Figure 6 FIG. 6 shows a structure 600 of a user equipment according to various embodiments of the present disclosure. Figure 6 As shown, the user equipment 600 includes a controller 610 and a transceiver 620, wherein the controller 610 is configured to execute the various methods performed by the user equipment disclosed herein, and the transceiver 620 is configured to transmit and receive channels or signals.

[0314] Figure 7 7 shows a structure 700 of a base station according to various embodiments of the present disclosure. Figure 7 As shown, the network device 700 includes a controller 710 and a transceiver 720, wherein the controller 710 is configured to execute various methods performed by the network device disclosed herein, and the transceiver 720 is configured to transmit and receive channels or signals.

[0315] In the present application, "reference signal" can be equivalently replaced with "reference signal resource". In the present application, "CSI parameter" can be equivalently replaced with "CSI" (that is, in the present invention, CSI is described by taking CSI parameter as an example). In the present application, "if reported" can be equivalently replaced with "if exists" or "if applicable" or "if needed". In addition, "CSI calculation delay parameter" can be equivalently replaced with "CSI calculation delay requirement", and "configuration information for CSI reporting (e.g., csi-ReportConfig)" can be interchanged with "CSI reporting configuration" or "CSI reporting configuration information" or "CSI reporting setting (CSIreport setting)".

[0316] In the present application, resources corresponding to a sub-configuration (e.g., CSI-RS resources, CSI-IM resources) may be understood as resources referenced by a sub-configuration. Resources corresponding to a first sub-configuration (or, multiple first sub-configurations) may be understood as resources referenced by a first sub-configuration (or, multiple first sub-configurations). Resources corresponding to a second sub-configuration may be understood as resources referenced by a second sub-configuration.

[0317] In addition, “at least one item / at least one” described in the present disclosure includes any and / or all possible combinations of the listed items, the various embodiments described in the present disclosure and the various examples in the embodiments may be changed and combined in any appropriate form, and the “ / ” described in the present disclosure means “or”.

[0318] The various illustrative logical blocks, modules, and circuits described in the present disclosure may be implemented or executed with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in an alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors cooperating with a DSP core, or any other such configuration.

[0319] The steps of the method or algorithm described in the present disclosure can be directly embodied in hardware, in a software module executed by a processor, or in a combination of the two. The software module can reside in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a removable disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor so that the processor can read and write information from / to the storage medium. In an alternative, a storage medium can be integrated into a processor. The processor and the storage medium can reside in an ASIC. The ASIC can reside in a user terminal. In an alternative, the processor and the storage medium can reside in a user terminal as discrete components.

[0320] In one or more exemplary designs, the functions may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include both computer storage media and communication media, the latter including any media that facilitates the transfer of a computer program from one place to another. Storage media may be any available media that can be accessed by a general or special purpose computer.

[0321] The descriptions set forth herein, in conjunction with the accompanying drawings, describe example configurations, methods, and apparatus, and do not represent all examples that may be implemented or within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration," rather than "preferred" or "superior to other examples." The detailed description includes specific details for the purpose of providing an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some cases, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0322] Although this specification contains a number of specific implementation details, these should not be interpreted as limitations on any invention or the scope of the claimed protection, but rather as descriptions of specific features of specific embodiments of specific inventions. Certain features described in this specification in the context of separate embodiments may also be implemented in combination in a single embodiment. On the contrary, the various features described in the context of a single embodiment may also be implemented separately in multiple embodiments or in any suitable sub-combination. In addition, although features may be described above as working in certain combinations, and even initially claimed as such, in some cases, one or more features from the claimed combination may be deleted from the combination, and the claimed combination may be directed to a sub-combination or a variation of the sub-combination.

[0323] It should be understood that the specific order or hierarchy of steps in the method of the present disclosure is an illustration of an exemplary process. Based on design preferences, it is understood that the specific order or hierarchy of steps in the method can be rearranged to achieve the functions and effects disclosed in the present disclosure. The attached method claims present the elements of various steps in an example order, and are not meant to be limited to the specific order or hierarchy presented, unless otherwise specifically stated. In addition, although elements can be described or claimed in singular form, the plural number is also contemplated unless a limitation to the singular is explicitly stated. Therefore, the present disclosure is not limited to the examples shown, and any device for performing the functions described herein is included in the various aspects of the present disclosure.

[0324] The text and drawings are provided as examples only to help readers understand the present disclosure. They are not intended and should not be interpreted as limiting the scope of the present disclosure in any way. Although certain embodiments and examples have been provided, it is obvious to those skilled in the art based on what is disclosed herein that the embodiments and examples shown may be changed without departing from the scope of the present disclosure.

Claims

1. A method performed by a user equipment UE in a wireless communication system, the method comprising: Receive a channel state information (CSI) reporting configuration, wherein the CSI reporting configuration includes a plurality of first sub-configurations; Receiving downlink control information DCI, wherein the DCI triggers one or more CSI reports; Based on the second sub-configuration, determine a first CSI report included in the one or more CSI reports, wherein the second sub-configuration includes at least one of the plurality of first sub-configurations; The CSI calculation delay parameter corresponding to the first CSI reporting is a parameter with the largest value among the CSI calculation delay parameters corresponding to each first sub-configuration in the second sub-configuration; or when condition A is met, the value of the CSI calculation delay parameter corresponding to the first CSI reporting is the first parameter value; The condition A includes at least one of the following: Each first sub-configuration in the second sub-configuration corresponds to a single-panel codebook or does not report a precoding matrix indicator PMI parameter; Each first sub-configuration in the second sub-configuration corresponds to a single resource; The number of ports of the resource corresponding to each first sub-configuration in the second sub-configuration is less than or equal to 4; Each first sub-configuration in the second sub-configuration has a channel state information reference signal resource indicator CRI reporting; Each first subconfiguration in the second subconfiguration corresponds to a broadband frequency domain granularity; The number of the first subconfiguration in the second subconfiguration is less than or equal to a specific value indicated by the base station.

2. The method according to claim 1, further comprising: When at least one of the following conditions is met, for the first CSI reporting, the CSI reporting is reported, and the measurement resources corresponding to the first CSI reporting include the measurement resources corresponding to each first sub-configuration in the second sub-configuration corresponding to the first CSI reporting: The time unit carrying the one or more CSI reports is no later than the first time unit, wherein the first time unit is determined based on the time unit where the physical downlink control channel PDCCH corresponding to the DCI is located and the CSI calculation delay parameter corresponding to each CSI report in the one or more CSI reports; The time unit carrying the first CSI report is no later than a second time unit, wherein the second time unit is determined based on a time unit of a measurement resource corresponding to the first CSI report and a CSI calculation delay parameter corresponding to the first CSI report.

3. The method according to claim 2, wherein: The measurement resource corresponding to each first sub-configuration in the second sub-configuration is determined based on at least one of the following: Each first subconfiguration in the second subconfiguration includes one or more parameters for channel measurement resources of the corresponding first subconfiguration; The measurement resource set corresponding to the CSI reporting configuration.

4. The method according to claim 1, further comprising: When condition B is met, the value of the CSI calculation delay parameter is a second parameter value, wherein condition B includes at least one of the following: at least one of the first sub-configurations of the second sub-configurations corresponds to a multi-panel; At least one first subconfiguration in the second subconfiguration corresponds to a plurality of resources; The number of ports of the resource corresponding to at least one first sub-configuration in the second sub-configuration is greater than 4; At least one first subconfiguration in the second subconfiguration has a channel state information reference signal CSI-RS resource indicator CRI reporting; At least one first subconfiguration in the second subconfiguration corresponds to a sub-band frequency domain granularity; The number of the first subconfiguration in the second subconfiguration is greater than or equal to a specific value indicated by the base station.

5. The method according to claim 1, wherein: Each first sub-configuration in the second sub-configuration corresponds to a single-panel codebook or does not report a precoding matrix indicator PMI parameter, which is determined based on at least one of the following: A parameter included in each first subconfiguration in the second subconfiguration and used to indicate a codebook type of the corresponding first subconfiguration; The CSI reporting configuration corresponds to the codebook type.

6. The method according to claim 1, wherein: That each of the first sub-configurations in the second sub-configuration corresponds to a single resource is determined based on at least one of the following: Each first subconfiguration in the second subconfiguration includes one or more parameters for channel measurement resources of the corresponding first subconfiguration; The resource set corresponding to the CSI reporting configuration.

7. The method according to claim 1, wherein: The number of ports of the resource corresponding to each first sub-configuration in the second sub-configuration is determined based on at least one of the following: A parameter for indicating a port subset of a CSI-RS resource for channel measurement of a corresponding first subconfiguration included in each first subconfiguration in the second subconfiguration; The CSI reporting configuration indicates the number of ports of resources in the resource set corresponding to the resource set.

8. The method according to claim 4, wherein: The at least one first sub-configuration in the second sub-configuration corresponds to a multi-panel based on at least one of the following: A parameter including at least one first subconfiguration in the second subconfiguration and used to indicate a codebook type of the corresponding first subconfiguration; The CSI reporting configuration corresponds to the codebook type.

9. The method according to claim 4, wherein: The at least one first sub-configuration in the second sub-configuration corresponds to a plurality of resources based on at least one of the following: at least one first subconfiguration in the second subconfiguration includes one or more parameters for channel measurement resources of the corresponding first subconfiguration; The resource set corresponding to the CSI reporting configuration.

10. The method according to claim 4, wherein: The number of ports of the resource corresponding to at least one first sub-configuration in the second sub-configuration is determined based on at least one of the following: A parameter for indicating a port subset of a CSI-RS resource for channel measurement of a corresponding first subconfiguration included in at least one first subconfiguration in the second subconfiguration; The CSI reporting configuration indicates the number of ports of resources in the resource set corresponding to the resource set.

11. The method according to claim 1, wherein: The maximum number of ports of the resources corresponding to each first subconfiguration in the second subconfiguration is determined based on the number of resources corresponding to each first subconfiguration in the second subconfiguration.

12. The method according to claim 11, wherein: The number of resources corresponding to each first subconfiguration in the second subconfiguration is the maximum value of the number of resources corresponding to each first subconfiguration in the second subconfiguration.

13. The method according to claim 11 or 12, wherein: When the number of resources corresponding to each first sub-configuration in the second sub-configuration is 1, the maximum number of ports is 32; and / or, When the maximum number of resources corresponding to each first sub-configuration in the second sub-configuration is less than or equal to 2, the maximum number of ports is 16; and / or, When the maximum value of the number of resources corresponding to each first sub-configuration in the second sub-configuration is greater than 2 and less than or equal to 8, the maximum number of ports is 8.

14. The method according to any one of claims 11 to 13, wherein: The number of ports of the resource corresponding to each first sub-configuration in the second sub-configuration is determined based on at least one of the following: A parameter for indicating a port subset of a CSI-RS resource for channel measurement of a corresponding first subconfiguration included in each first subconfiguration in the second subconfiguration; The CSI reporting configuration indicates the number of ports of resources in the resource set corresponding to the resource set.

15. The method according to claim 1, wherein: The CSI reference resource corresponding to the first CSI reporting is determined based on the resource corresponding to each first sub-configuration in the second sub-configuration corresponding to the first CSI reporting.

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