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 channel state information (CSI) reporting configuration comprising a plurality of first sub-configurations; determining and / or reporting the CSI based on a second sub-configuration, the second sub-configuration comprising N of the plurality of first sub-configurations, N being not less than 1; wherein the CSI comprises one or two CSI parts, and the number of the CSI parts included in the CSI is determined based on the N, and / or at least one of the one or two CSI parts included in the CSI is determined based on a first sequence, and the first sequence comprises at least one of the following: a sequence of N first sub-configurations in the second sub-configuration; the order of CSI parameters in the CSI; the sequence between zero padding bits in the CSI and CSI parameters is determined.

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] Technical issues

[0008] 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.

[0009] Technical Solutions

[0010] 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 channel state information CSI reporting configuration includes multiple first sub-configurations; determining and / or reporting CSI based on a second sub-configuration, wherein the second sub-configuration includes N of the multiple first sub-configurations, wherein N is not less than 1; wherein the CSI includes one or two CSI parts, and the number of CSI parts included in the CSI is determined based on the N, and / or, at least one CSI part of the one or two CSI parts included in the CSI is determined based on a first order, wherein the first order includes at least one of the following: the order of the N first sub-configurations in the second sub-configuration; the order of CSI parameters in the CSI; the order between zero-padding bits and CSI parameters in the CSI.

[0011] In one example, the number of CSI parts included in the CSI is determined based on the N, including: when the N is less than or equal to the value indicated by the higher layer signaling, the number of CSI parts included in the CSI is 1.

[0012] In one example, the number of CSI parts included in the CSI is determined based on the N, including: when the N is greater than or equal to the value indicated by the higher layer signaling, the number of CSI parts included in the CSI is 2.

[0013] In one example, the order of the N first subconfigurations in the second subconfiguration includes one of the following: the order of the identification IDs of the N first subconfigurations in the second subconfiguration; the order of the N first subconfigurations in the second subconfiguration in the CSI reporting configuration; the order of the priorities of the N first subconfigurations in the second subconfiguration.

[0014] In one example, the priority is determined based on at least one of: the ID of the first subconfiguration in the second subconfiguration; the position of the first subconfiguration in the second subconfiguration in the CSI reporting configuration; the number of resources corresponding to the first subconfiguration in the second subconfiguration; and the number of ports corresponding to the first subconfiguration in the second subconfiguration.

[0015] In one example, the single-part CSI in the CSI or the wideband CSI of the CSI part 2 in the CSI is determined based on the first order: first based on the order of the N first sub-configurations; then based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of the transport blocks TB corresponding to the CSI parameters and / or the information field X corresponding to the precoding matrix indicator PMI. 1 and information domain X 2or, first based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of the N first sub-configurations; then based on the order of the transport blocks TB corresponding to the CSI parameters and / or the information field X corresponding to the PMI. 1 and information domain X 2 or, first based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; and then based on the order of the transport blocks TB corresponding to the CSI parameters and / or the information field X corresponding to the PMI. 1 and information domain X 2 The order of the N first sub-configurations and / or the order of the frequency domain granularity; and then based on the order of the N first sub-configurations.

[0016] In one example, the CSI part in the CSI is determined based on a first order, including: first based on the order of N first sub-configurations; then based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of the frequency domain granularity; then based on the order of the subband numbers, or, first based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of the N first sub-configurations; then based on the order of the frequency domain granularity; then based on the order of the subband numbers; or, first based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of the frequency domain granularity; then based on the order of the N first sub-configurations; then based on the order of the subband numbers; or, first based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of the frequency domain granularity; then based on the order of the subband numbers; then based on the order of the N first sub-configurations.

[0017] In one example, the subband CSI of the CSI part two in the CSI is determined based on a first order, including: first based on the order of odd subband numbers and even subband numbers; then based on the order of N first sub-configurations; then based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of subband numbers; or, first based on the order of odd subband numbers and even subband numbers; then based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of N first sub-configurations; then based on the order of subband numbers; or, first based on the order of odd subband numbers and even subband numbers; then based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of subband numbers; then based on the order of N first sub-configurations.

[0018] In one example, the number of each type of CSI parameters in the CSI parameters is determined based on the N.

[0019] In one example, the CSI parameters include at least one of a channel state information reference signal resource indicator CRI, a rank indicator RI, a PMI, a CQI, and a layer indicator LI corresponding to a first subconfiguration in the second subconfiguration.

[0020] In one example, the CRI in the CSI parameter corresponding to a first subconfiguration in the second subconfiguration is determined based on at least one of: a resource set for channel measurement corresponding to the CSI reporting configuration; or one or more resources corresponding to a first subconfiguration in the second subconfiguration.

[0021] In one example, the RI in the CSI parameter corresponding to a first subconfiguration in the second subconfiguration is determined based on at least one of the following: at least one of the allowed rank and port numbers indicated by a first subconfiguration in the second subconfiguration; at least one of the allowed rank and port numbers corresponding to the information for CSI reporting configuration; and the CRI in the CSI parameter corresponding to a first subconfiguration in the second subconfiguration.

[0022] In one example, the PMI in the CSI parameter corresponding to a first subconfiguration in the second subconfiguration is determined based on at least one of the following: at least one of the number of ports indicated by a first subconfiguration in the second subconfiguration, a codebook mode, a codebook type, a first dimension parameter N1, a second dimension parameter N2, and a parameter Ng for multiple panels; at least one of the number of ports, codebook mode, codebook type, N1, N2, and Ng corresponding to the CSI reporting configuration; and the CRI and / or RI in the CSI parameter corresponding to a first subconfiguration in the second subconfiguration.

[0023] In one example, the CQI in the CSI parameter corresponding to a first subconfiguration in the second subconfiguration is determined based on at least one of the following: the number of ports indicated by a first subconfiguration in the second subconfiguration and a CQI table corresponding to the CSI reporting configuration; the number of ports corresponding to the CSI reporting configuration and the CQI table indicated by the second subconfiguration; at least one of CRI, RI, and PMI in the CSI parameter corresponding to a first subconfiguration in the second subconfiguration.

[0024] In one example, the LI in the CSI parameter corresponding to a first subconfiguration in the second subconfiguration is determined based on at least one of the following: the number of ports indicated by a first subconfiguration in the second subconfiguration; the number of ports corresponding to the CSI reporting configuration; at least one of CRI, RI, PMI, and CQI in the CSI parameter corresponding to a first subconfiguration in the second subconfiguration.

[0025] In an example, the number of zero-padding bits corresponding to a first subconfiguration in the second subconfiguration is determined based on at least one of the following corresponding to the corresponding first subconfiguration: the indicated rank allowed to be reported; the RI in the CSI parameter corresponding to a first subconfiguration in the second subconfiguration; the number of bits corresponding to the PMI in the CSI parameter corresponding to a first subconfiguration in the second subconfiguration; the number of bits corresponding to the CQI in the CSI parameter corresponding to a first subconfiguration in the second subconfiguration; the number of bits corresponding to the LI in the CSI parameter corresponding to a first subconfiguration in the second subconfiguration; the maximum number of bits corresponding to PMI; the maximum number of bits corresponding to CQI; the maximum number of bits corresponding to LI.

[0026] In one example, the number of zero-padding bits corresponding to the N first subconfigurations in the second subconfiguration is determined based on at least one of the following corresponding to each first subconfiguration in the second subconfiguration: the indicated rank allowed to be reported; the reported RI; the number of bits corresponding to the reported PMI; the number of bits corresponding to the reported CQI; the number of bits corresponding to the reported LI; the maximum number of bits corresponding to PMI; the maximum number of bits corresponding to CQI; the maximum number of bits corresponding to LI.

[0027] In one example, the second sub-configuration is indicated by signaling that triggers CSI reporting corresponding to the CSI reporting configuration.

[0028] 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 channel state information CSI reporting configuration includes multiple first sub-configurations; receiving CSI, wherein the CSI is determined based on a second sub-configuration, and the second sub-configuration includes N of the multiple first sub-configurations, wherein N is not less than 1; wherein the CSI includes one or two CSI parts, and the number of CSI parts included in the CSI is determined based on the N, and / or, at least one CSI part of the one or two CSI parts included in the CSI is determined based on a first order, wherein the first order includes at least one of the following: the order of the N first sub-configurations in the second sub-configuration; the order of CSI parameters in the CSI; the order between zero-padding bits and CSI parameters in the CSI.

[0029] 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.

[0030] 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.

[0031] Advantageous Effects of the Invention

[0032] 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

[0033] 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.

[0034] Figure 1 shows the overall structure of an example wireless communication network according to various embodiments of the present disclosure;

[0035] Figure 2A and Figure 2B 200 and 250 are respectively shown in a wireless communication network according to various embodiments of the present disclosure;

[0036] 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;

[0037] Figure 4 A method 400 performed by a user equipment (UE) according to various embodiments of the present disclosure is shown;

[0038] Figure 5 A method 500 performed by a base station according to various embodiments of the present disclosure is shown;

[0039] Figure 6 shows a structure 600 of a user equipment according to various embodiments of the present disclosure;

[0040] Figure 7 A structure 700 of a base station according to various embodiments of the present disclosure is shown. DETAILED DESCRIPTION

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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).

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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 2BAt 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.

[0058] 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.).

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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).

[0067] 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.

[0068] Figure 3B An 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.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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).

[0078] 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.

[0079] 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 information for CSI reporting configuration; at 402, the UE determines CSI and / or reports CSI based on the received information for CSI reporting configuration. In this document, the term "CSI reporting configuration information" can be used interchangeably with the terms "information for CSI reporting configuration" and "information for configuring CSI reporting".

[0080] Embodiment 1

[0081] 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.

[0082] 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".

[0083] 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".

[0084] Optionally, the description of the second subconfiguration in the present disclosure may apply to a subconfiguration or 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 or each subconfiguration or any subconfiguration in a (subconfiguration) 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.

[0085] Optionally, one of the plurality of first sub-configurations or one of the second sub-configurations may be referred to as a sub-configuration. Optionally, the sub-configuration may include / indicate / configure / associate at least one of the following:

[0086] ·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 port of a channel state information reference signal (CSI-RS). 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 (e.g., 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 (e.g., 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 not used) in the corresponding subconfiguration. Here, '1' represents / indicates that the corresponding port is enabled (or turned on, or used) in the corresponding subconfiguration. 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 may be a port (eg, all ports) of a CSI-RS resource (used for channel measurement) associated with the CSI reporting configuration information.

[0087] ·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 to / 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 to / is associated with a (type one) single-panel codebook, the sub-configuration may include / indicate a first dimension parameter (N1) and a second dimension parameter (N2). For example, when the CSI reporting configuration corresponds to / is associated with a (type one) multi-panel codebook (for example, the codebook type parameter codebookType is set to 'typeI-MultiPanel') or the 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). 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.

[0088] ·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 determines the codebook type based on the parameters (e.g., codebookType) indicated / configured in the CSI reporting configuration information. 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 doing this is that the codebook type of the sub-configuration can be explicitly indicated by parameters to clarify the behavior of the terminal device.

[0089] ·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.

[0090] ·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.

[0091] ·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 and / 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.

[0092] 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.

[0093] ·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.

[0094] Optionally, the UE determines the CSI based on multiple first sub-configurations or second sub-configurations. Optionally, the CSI may be a CSI parameter and / or zero padding bit. 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 CSI feedback. The CSI parameter may also be a report carrying the CSI parameter (that is, CSI report).

[0095] 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 Interference and Noise Ratio (L1-SINR), and a Capability Index. Optionally, the above-mentioned different CSI parameters may also be referred to as different CSI parameter types. For example, CQI and CRI correspond to different CSI parameter types.

[0096] Optionally, the CSI (order) is based on at least one of: the order of multiple first sub-configurations or the order of the second sub-configurations; the order of CSI parameters and / or zero-padding fields corresponding to the CSI reporting configuration information; the order between the zero-padding bits corresponding to the CSI reporting configuration information and the CSI parameters corresponding to the CSI reporting configuration information.

[0097] Optionally, the order of one or more first sub-configurations may be the order of the IDs of one or more first sub-configurations. For example, the order of the first sub-configuration IDs from small to large or from large to small. Optionally, the first sub-configuration may be configured with an ID. Optionally, each first sub-configuration may be configured with an ID (e.g., a sub-configuration ID). For example, the CSI reporting configuration information corresponds to (or, CSI reporting) includes / corresponds to L sub-configurations. For example, sub-configuration #1, sub-configuration #2, ..., sub-configuration #L correspond to the CSI reporting configuration information (or, CSI reporting) L sub-configurations arranged in ascending / descending order of ID. Optionally, the order / position of the first sub-configuration may be the order / position of the sub-configuration in the configuration information. For example, the order / position of the first sub-configuration in the CSI reporting configuration information. For example, sub-configuration #1, sub-configuration #2, ..., sub-configuration #L correspond to the CSI reporting configuration information (or, CSI reporting) L sub-configurations arranged in the order / position of the sub-configuration (in the configuration information). Optionally, the order of the first sub-configuration may be the order of the priority of the first sub-configuration. Optionally, the priority of the sub-configuration (or the value of the priority) is based on at least one of the following: the ID of the sub-configuration; the position of the sub-configuration in the configuration information; the number of resources included / indicated / corresponding to the sub-configuration; the number of ports included / indicated / corresponding to the sub-configuration. Optionally, the priority of the sub-configuration (the first sub-configuration or the second sub-configuration) is first determined based on the number of ports included / indicated / corresponding to the sub-configuration or the number of resources included / indicated / corresponding to the sub-configuration, and then based on the ID of the sub-configuration or the position of the sub-configuration in the configuration information. Here, the order between the multiple orders for determining the priority of the sub-configuration is exemplary and can be interchanged. For example, for one or more sub-configurations, a sub-configuration with a larger / smaller number of corresponding / indicated resources, or a sub-configuration with a larger / smaller number of corresponding / indicated ports, has a higher priority. For example, if the number of corresponding / indicated resources of multiple sub-configurations is the same, or if the number of corresponding / indicated ports of multiple sub-configurations is the same, the sub-configuration with a larger / smaller ID has a higher priority (or the sub-configuration that is earlier / later in the configuration signaling has a higher priority). Optionally, the priority of the sub-configuration is first determined based on the number of ports included / indicated / corresponding to the sub-configuration, then based on the number of resources included / indicated / corresponding to the sub-configuration, and then based on the ID of the sub-configuration or the position of the sub-configuration in the configuration information. Optionally, the priority of the sub-configuration is first determined based on the number of resources included / indicated / corresponding to the sub-configuration, then based on the number of ports included / indicated / corresponding to the sub-configuration, and then based on the ID of the sub-configuration or the position of the sub-configuration in the configuration information. The implementation method can be similar to the above example. Optionally, the priority P of the sub-configuration can be calculated by a formula.For example, P=x+x_max*y+x_max*y_max*z, where x corresponds to / refers to the value of the ID of the subconfiguration or the value of the position index of the subconfiguration in the configuration information; y corresponds to / refers to the value of the number of ports indicated by the subconfiguration or the value of the number of resources indicated by the subconfiguration; z corresponds to / refers to the value of the number of resources indicated by the subconfiguration or the value of the number of ports indicated by the subconfiguration; x_max corresponds to / refers to the maximum value of the ID of the subconfiguration or the maximum value of the position index of the subconfiguration in the configuration information; y_max corresponds to / refers to the number of ports of the reference signal resources for channel measurement associated with the CSI reporting configuration information associated with the subconfiguration (for example, the number is indicated by the port parameter number parameter nrofPort), or y_max corresponds to / refers to the number of resources in the reference signal resource set for channel measurement associated with the CSI reporting configuration information associated with the subconfiguration. Optionally, if the priority value of a subconfiguration is less than / greater than the priority value of another subconfiguration, it means that the former has a higher priority.

[0098] Optionally, the number of ports corresponding to the subconfiguration may be the number of ports indicated by the subconfiguration. Optionally, the number of ports indicated by the subconfiguration may be the number of ports of a port subset indicated by the subconfiguration. For example, the subconfiguration indicates a port parameter, where the port subset may include ports indicated by (all) '1' in the bitmap. Optionally, the number of ports corresponding to the subconfiguration may be the number of ports of a reference signal resource for channel measurement associated with the CSI reporting configuration information (for example, the number is indicated by the port parameter number parameter nrofPort).

[0099] Optionally, the number of ports indicated by the subconfiguration may be determined by codebook-related parameters indicated by the subconfiguration. For example, when the CSI reporting configuration corresponds to / is associated with a (type one) single-panel codebook (for example, the codebook type parameter codebookType is set to 'typeI-SinglePanel') or the subconfiguration corresponds to / is associated with a (type one) single-panel codebook, the subconfiguration indicates a first dimension parameter (N1) and a second dimension parameter (N2). Optionally, the number of ports indicated by the subconfiguration is based on N1 and N2. Optionally, the number of ports indicated by the subconfiguration is equal to 2 times the product of N1 and N2 (2*N1*N2). Optionally, when both N1 and N2 are 1 (optionally, and the number of port subsets indicated by the above bitmap is 1), the number of ports indicated by the subconfiguration is the product of N1 and N2 (N1*N2). Optionally, when N1 and N2 are not both 1 (optionally, and the number of port subsets indicated by the above bitmap is greater than 1), the number of ports indicated by the subconfiguration is 2 times the product of N1 and N2 (2*N1*N2). For example, when the CSI reporting configuration corresponds / associated with a (type one) multi-panel codebook (for example, the codebook type parameter codebookType is set to 'typeI-MultiPanel'), the subconfiguration indicates 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). Optionally, the number of ports indicated by the subconfiguration is based on N1, N2 and Ng. Optionally, the number of ports indicated by the subconfiguration is equal to 2 times the product of N1 and N2 and Ng (2*N1*N2*Ng). Optionally, when both N1 and N2 are 1 (and the number of port subsets indicated by the above bitmap is 1), the number of ports indicated by the sub-configuration is the product of N1, N2 and Ng (N1*N2*Ng). Optionally, when both N1 and N2 are not 1 (and the number of port subsets indicated by the above bitmap is greater than 1), the number of ports indicated by the sub-configuration is 2 and the product of N1, N2 and Ng (2*N1*N2*Ng).

[0100] Optionally, the number of resources corresponding to / indicated by the sub-configuration may be the number of one or more resources indicated by the sub-configuration. Optionally, the number of ports corresponding to the sub-configuration may be the number of resources in a set of reference signal resources for channel measurement associated with the CSI reporting configuration information (e.g., the total number of all resources in the set of resources).

[0101] Optionally, the order of the second sub-configuration may be the order of the IDs of (one or more) second sub-configurations. For example, the order of the second sub-configuration IDs from small to large or from large to small. Optionally, the second sub-configuration may be configured with an ID. Optionally, each second sub-configuration may be configured with an ID (e.g., a sub-configuration ID). For example, the CSI reporting configuration information corresponds to (or, CSI reporting) includes / corresponds to L sub-configurations. Among them, the L sub-configurations include N second sub-configurations. For example, sub-configuration #1, sub-configuration #2, ..., sub-configuration #N correspond to the CSI reporting configuration information (or, CSI reporting) N sub-configurations arranged in ascending / descending order of ID. Optionally, the order / position of the second sub-configuration may be the order / position of (one or more) second sub-configurations in the configuration information. For example, the order / position of the second sub-configuration in the CSI reporting configuration information. For example, subconfiguration #1, subconfiguration #2, ..., subconfiguration #N correspond to N subconfigurations of CSI reporting configuration information (or, CSI reporting) arranged in the order / position of the subconfiguration (in the configuration information). Optionally, the order of the second subconfiguration may be the order of the priority of the second subconfiguration. Here, for the method for determining the priority of the subconfiguration, refer to the relevant description of the first subconfiguration above.

[0102] The above method for determining the order of one or more first sub-configurations and / or determining the order of the second sub-configuration can enable the terminal device and the network device to have the same understanding of the order of the CSI information bits based on the same ordering rule, thereby improving the reliability of the communication system. This (predefined) ordering method does not require additional indication signaling to indicate the ordering method, thereby improving the efficiency of the communication system.

[0103] Optionally, the CSI includes / corresponds to / is associated with a CSI parameter and / or a zero padding field corresponding to the CSI reporting configuration information. Optionally, one (or each) first sub-configuration (or second sub-configuration) corresponds to a CSI parameter. Optionally, a CSI parameter of one (or each) first sub-configuration (or second sub-configuration) is determined / calculated based on a parameter of the configuration of the corresponding first sub-configuration (or second sub-configuration).

[0104] Optionally, the number of CSI parameters is based on the number of multiple first sub-configurations. Optionally, the CSI parameter is a CSI parameter included / corresponding to the CSI. Optionally, the number of CSI parameters is equal to the number of multiple first sub-configurations. The CSI parameter takes CRI as an example, and each of the first sub-configurations (sub-configuration #1, sub-configuration #2, ..., sub-configuration #L) corresponds to a CRI. For example, the CSI includes / corresponds to L CRIs. The CSI parameter may also be at least one of RI, LI, PMI, and CQI. For example, the CSI includes / corresponds to L RI / LI / PMI / CQI. Optionally, the number of CSI parameters is based on the number of second sub-configurations. Optionally, the CSI parameter is a CSI parameter included / corresponding to the CSI. Optionally, the number of CSI parameters is equal to the number of second sub-configurations. The CSI parameter takes CRI as an example, and each of the second sub-configurations (sub-configuration #1, sub-configuration #2, ..., sub-configuration #N) corresponds to a CRI. For example, the CSI includes / corresponds to N CRIs. The CSI parameter may also be at least one of RI, LI, PMI, and CQI. For example, CSI includes / corresponds to N RI / LI / PMI / CQI.

[0105] In order to avoid changes in the total number of bits of CSI or a part of CSI, zero padding bits can be added to CSI. Thus, multiple attempts of the base station in blind detection of CSI with a non-fixed total number of bits can be avoided. By padding the zero bits, the base station always decodes the CSI with a fixed total number of bits, reducing the complexity of the base station. Optionally, the zero padding bits may be in (one or more) CSI domains. For example, the zero padding bits may be in a zero padding domain or a zero padding bit domain. Here, a zero padding bit domain or a zero padding domain may be a group of zero bits (or a group of continuous information bits with a value of 0). For another example, the zero padding bits may be in a CSI domain including an RI parameter. For another example, the zero padding bits may be in a CSI domain including an LI parameter. Optionally, the number of domains (e.g., CSI domains) to which the zero padding bits are related / located is based on the number of multiple first sub-configurations. Optionally, the zero padding bits are zero padding bits included / corresponding to the CSI. Optionally, a CSI domain including or associated with zero padding bits is included / corresponding to the CSI. Optionally, the number of CSI domains including or associated with zero padding bits is equal to the number of multiple first sub-configurations. The following is an example of a CSI field including or associated with zero padding bits as a zero padding field. For example, each of the first sub-configuration (sub-configuration #1, sub-configuration #2, ..., sub-configuration #L) corresponds to a zero padding field. For example, CSI includes / corresponds to L zero padding fields. Optionally, the number of fields related to / in which the zero padding bit is located is based on the number of the second sub-configuration. Optionally, the zero padding field is a zero padding field included / corresponding to the CSI. Optionally, the number of zero padding fields is equal to the number of the second sub-configuration. For example, each of the second sub-configuration (sub-configuration #1, sub-configuration #2, ..., sub-configuration #N) corresponds to a zero padding field. For example, CSI includes / corresponds to N zero padding fields. Optionally, the number of fields related to / in which the zero padding bit is located is a specific value. The specific value is, for example, one of 1, 2, 3, and 4. Optionally, the specific value may be based on the capability of the terminal device (for example, indicated by the capability signaling reported by the terminal). Optionally, the specific value may be indicated by the base station (for example, indicated by at least one of DCI, MAC-CE, and RRC signaling). For example, the second sub-configuration (sub-configuration #1, sub-configuration #2, ..., sub-configuration #N) corresponds to one zero-padding field. For example, the CSI includes / corresponds to one zero-padding field.

[0106] Optionally, (the order of information bits of) CSI is based on the order of CSI parameters and / or zero-padding bits corresponding to the CSI reporting configuration information, and / or the order between the zero-padding bits (corresponding to the CSI reporting configuration information) and the CSI parameters corresponding to the CSI reporting configuration information. Optionally, the CSI parameter corresponding to the CSI reporting configuration information may be at least one of CRI, RI, LI, PMI, and CQI. Optionally, the CSI parameter of 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 are CRI, RI, LI, PMI, and CQI. For example, when the reportQuantity parameter is set to "cri-RI-PMI-CQI", the corresponding CSI parameters are CRI, RI, PMI, and CQI. For example, when the reportQuantity parameter is set to "cri-RI-i1-CQI", the corresponding CSI parameters are CRI, RI, PMI, and CQI. For example, when the reportQuantity parameter is set to "cri-RI-i1", the corresponding CSI parameters are CRI, RI, and PMI. For example, when the reportQuantity parameter is set to "cri-RI-CQI", the corresponding CSI parameters are CRI, RI, and CQI.

[0107] Optionally, the order of CSI parameters may include at least one of: the order of CSI parameter types, the order of frequency-domain-related parameters corresponding to the CSI parameters, and the order of transport blocks (TBs) corresponding to the CSI parameters. The order of CSI parameters is described below by taking the order of CSI parameter types as an example. Optionally, the (sequence) order of CSI parameters is as follows: CRI, RI, LI, PMI, and CQI. Optionally, the (sequence) order of CSI parameters is as follows: CRI (if reported / existing), RI (if reported / existing), LI (if reported / existing), PMI (if reported / existing), and CQI (if reported / existing). That is, if some CSI parameters are not reported, the order of CSI parameters in the CSI still conforms to the above order. Optionally, the (sequence) order of CSI parameters and / or zero-padding bits is as follows: CRI, RI, LI, zero-padding bits, PMI, and CQI. Optionally, the order of CSI parameters and / or zero-padding bits (in order) is as follows: CRI (if reported / existing), RI (if reported / existing), LI (if reported / existing), zero-padding bits (if reported / existing), PMI (if reported / existing) and CQI (if reported / existing). Optionally, the zero-padding bits may be after the CSI parameters. Optionally, the order of CSI parameters and / or zero-padding bits (in order) is as follows: CRI (if reported / existing), RI (if reported / existing), LI (if reported / existing), PMI (if reported / existing) and CQI (if reported / existing), zero-padding bits (if reported / existing). That is, if some CSI parameters are not reported, the order of CSI parameters in the CSI still conforms to the above order. The advantage of placing the zero-padding bits at a specific position in the CSI (for example, after the LI, or after all CSI parameters) is that since the zero-padding bits need to be calculated based on the number of CRIs and RIs, the above method can avoid the situation where the zero-padding bits are before the CRI and / or RI, resulting in the inability to correctly determine the CRI and / or RI, thereby allowing the base station to correctly decode the CSI and improving the reliability of the communication system.

[0108] Optionally, when the CSI includes one part (or, the CSI corresponds to a single CSI part, or, the number of CSI parts included in the CSI is 1), the (sequence) order of CSI parameters and / or zero-padding bits is as follows: CRI (if reported / existing), RI (if reported / existing), LI (if reported / existing), zero-padding bits (if reported / existing), PMI (if reported / existing) and CQI (if reported / existing). Optionally, when the CSI includes two parts, in CSI part one, the (sequence) order of CSI parameters is as follows: CRI (if reported / existing), RI (if reported / existing), CQI (if reported / existing). Optionally, when the CSI includes two parts, in the wideband CSI of CSI part two, the (sequence) order of CSI parameters is as follows: CQI (if reported / existing), LI (if reported / existing), PMI (if reported / existing). Optionally, when the CSI includes two parts, in the sub-band CSI of the CSI part two, the (sequential) order of CSI parameters is as follows: CQI (if reported / existing), PMI (if reported / existing).

[0109] Optionally, the PMI may include a PMI information field (PMI wideband information fields) 1 and / or PMI wideband information fieldsX 2 . Optionally, (in PMI) X 1 Before X 2 . Optionally, (in PMI) X 2 Before X 1 . Optionally, the CQI may include a wideband CQI and / or a subband CQI. Optionally, the CQI may include a CQI of a first transport block (TB) and / or a CQI of a second TB. Optionally, the (wideband / subband) CQI may include a (wideband / subband) CQI of a first TB and / or a (wideband / subband) CQI of a second TB. Optionally, the (wideband / subband) CQI of a first TB precedes the (wideband / subband) CQI of a second TB.

[0110] Optionally, the CSI may be based on the order of multiple first sub-configurations or the order of the second sub-configuration, and then on the order of the CSI parameters and / or the zero-padding fields corresponding to the CSI reporting configuration information; or, the CSI may be based on the order of the CSI parameters and / or the zero-padding fields corresponding to the CSI reporting configuration information, and then on the order of multiple first sub-configurations or the order of the second sub-configuration. The following description takes the first sub-configuration as an example (the method for the second sub-configuration is similar to that for the first sub-configuration, and L is replaced by N). For example, each sub-configuration in the first sub-configuration (sub-configuration #1, sub-configuration #2, ..., sub-configuration #L) corresponds to a CRI, an RI, an LI, a PMI and a CQI. For example, sub-configuration #1 corresponds to CRI #1, RI #1, LI #1, PMI #1 and CQI #1; sub-configuration #2 corresponds to CRI #2, RI #2, LI #2, PMI #2 and CQI #2; and so on. For example, if the order is based on the CSI parameters first and then on the order of the sub-configuration, the order of the CSI parameters in the CSI is as follows: CRI#1, CRI#2, ..., CRI#L, RI#1, RI#2, ..., RI#L, ..., CQI#1, CQI#2, ..., CQI#L. For example, if the order is based on the sub-configuration first and then on the order of the CSI parameters, the order of the CSI parameters in the CSI is as follows: CRI#1, RI#1, LI#1, PMI#1, CQI#1, CRI#2, RI#2, LI#2, PMI#2, CQI#2, ..., CRI#L, RI#L, LI#L, PMI#L, CQI#L. For example, if the CSI needs to be padded with zero bits, and it is based on the order of CSI parameters first and then on the order of sub-configuration, the order of CSI parameters in the CSI is as follows: CRI#1, CRI#2,…, CRI#L, RI#1, RI#2,…, RI#L, LI#1, LI#2,…, LI#L, zero-padded bits, PMI#1, PMI#2,…, PMI#L, CQI#1, CQI#2,…, CQI#L. For example, if the CSI needs to be padded with zero bits, and it is based on the order of the sub-configuration first and then on the order of the CSI parameters, the order of the CSI parameters in the CSI is as follows: CRI#1, RI#1, LI#1, zero-padding bits, PMI#1, CQI#1, CRI#2, RI#2, LI#2, zero-padding bits, PMI#2, CQI#2,…, CRI#L, RI#L, LI#L, zero-padding bits, PMI#L, CQI#L.

[0111] Optionally, the zero padding bits are determined based on the associated / corresponding sub-configuration (or, parameters of the sub-configuration), or the zero padding bits are determined based on the parameters of multiple first sub-configurations (or, parameters of multiple first sub-configurations) or the second sub-configuration (or, parameters of the second sub-configuration). Optionally, when the number of domains including zero padding bits is equal to the number of multiple first sub-configurations or the number of second sub-configurations, each corresponding zero padding bit is determined based on the CSI parameter of the respective corresponding sub-configuration. Continuing with the above example, if the CSI requires zero padding bits and is based on the order of the sub-configuration first and then on the order of the CSI parameters, the order of the CSI parameters in the CSI is as follows: CRI#1, RI#1, LI#1, zero padding bit#1, PMI#1, CQI#1, CRI#2, RI#2, LI#2, zero padding bit#2, PMI#2, CQI#2, ..., CRI#L, RI#L, LI#L, zero padding bit#L, PMI#L, CQI#L. At this time, the number of CSI fields of zero-padding bits included in the CSI is L. In this case, the zero-padding bits are determined based on each of the L first sub-configurations (or, the parameters included / indicated by the L first sub-configurations). That is, zero-padding bit #1 is determined based on the parameters of sub-configuration #1; zero-padding bit #2 is determined based on the parameters of sub-configuration #2; and so on. Optionally, when the number of zero-padding fields is 1, the corresponding zero-padding bits are determined based on the CSI parameters of multiple first sub-configurations or second sub-configurations. Continuing with the above example, if the CSI needs zero-padding bits, and it is based on the order of CSI parameters first and then on the order of sub-configurations, the order of CSI parameters in the CSI is as follows: CRI#1, CRI#2,…, CRI#L, RI#1, RI#2,…, RI#L, LI#1, LI#2,…, LI#L, zero-padding bits, PMI#1, PMI#2,…, PMI#L, CQI#1, CQI#2,…, CQI#L. At this time, the number of CSI fields of zero-padding bits included in the CSI is 1. In this case, the zero-padding bits are determined based on the L first sub-configurations (or parameters included / indicated by the L first sub-configurations).

[0112] Optionally, the zero padding bits (or the number of zero padding bits) are based on an associated / corresponding sub-configuration (or a parameter corresponding to a sub-configuration). Optionally, the zero padding bits (or the number of zero padding bits) are based on at least one of the following of an associated / corresponding sub-configuration:

[0113] Ranks (rank values) that are allowed to be reported For example, the ranks (rank values) that are allowed to be reported may be based on the restrictions of the rank of the sub-configuration (correspondence).

[0114] Reported rank. For example, the (reported) RI corresponding to the sub-configuration included in the CSI. For example, the rank corresponding to the (reported) RI corresponding to the sub-configuration included in the CSI.

[0115] (Reported) PMI. For example, the (reported) PMI corresponding to the sub-configuration included in the CSI.

[0116] (Reported) CQI. For example, the (reported) CQI corresponding to the sub-configuration included in the CSI.

[0117] (Reported) LI. For example, the (reported) LI corresponding to the sub-configuration included in the CSI.

[0118] PMI. For example, the maximum number of bits corresponding to the PMI. For example, the PMI calculated / determined based on the reported rank and / or the PMI calculated / determined based on the rank allowed to be reported. For example, the number of bits corresponding to the PMI calculated / determined based on the reported rank and / or the maximum number of bits of the PMI calculated / determined based on the rank allowed to be reported.

[0119] CQI. For example, the maximum number of bits corresponding to the CQI. For example, the CQI calculated / determined based on the reported rank and / or the CQI calculated / determined based on the rank allowed to be reported. For example, the number of bits corresponding to the CQI calculated / determined based on the reported rank and / or the maximum number of bits of the CQI calculated / determined based on the rank allowed to be reported.

[0120] LI. For example, the maximum number of bits corresponding to the LI. For example, the LI calculated / determined based on the reported rank and / or the LI calculated / determined based on the rank allowed to be reported. For example, the number of bits corresponding to the LI calculated / determined based on the reported rank and / or the maximum number of bits of the LI calculated / determined based on the rank allowed to be reported.

[0121] Optionally, the (number of) zero-padding bits of the associated / corresponding sub-configuration is based on / equal to the maximum number of bits calculated / determined for the rank allowed to be reported of the sub-configuration (corresponding) and the (difference between) the number of bits calculated / determined for the reported rank of the sub-configuration. For example, (for a sub-configuration / for the corresponding sub-configuration), the number of zero-padding bits is equal to the cumulative sum of the maximum number of bits of the PMI (if reported) and / or the maximum number of bits of the CQI (if reported) and / or the maximum number of bits of the LI (if reported) calculated / determined based on the rank allowed to be reported, minus the cumulative sum of the number of bits of the PMI (if reported) and the number of bits of the CQI (if reported) and the number of bits of the LI (if reported) calculated / determined for the reported rank.

[0122] Optionally, the zero padding bits (or the number of zero padding bits) are based on multiple parameters of the first sub-configuration or the second sub-configuration (corresponding parameters). Optionally, the zero padding bits (or the number of zero padding bits) are based on at least one of the following parameters of the first sub-configuration or the second sub-configuration (corresponding parameters):

[0123] ·Rank / rank values ​​that are allowed to be reported. For example, the rank (rank value) that is allowed to be reported can be based on the rank restriction of the sub-configuration. For example, the common rank that is allowed to be reported for multiple first sub-configurations. For example, the rank that is allowed to be reported for a sub-configuration among multiple first sub-configurations. For example, the rank that is allowed to be reported for each sub-configuration among multiple first sub-configurations. For example, the rank that is allowed to be reported for each sub-configuration among multiple first sub-configurations. For example, the rank (rank value) that is allowed to be reported is based on the rank restriction parameter in the CSI reporting configuration information (for example, the rank restriction parameter in the CSI reporting configuration information is shared by all sub-configurations).

[0124] · Reported rank. For example, the RI of the subconfiguration included in the CSI. For example, the reported rank of one subconfiguration in the multiple first subconfigurations. For example, the reported rank of each subconfiguration in the multiple first subconfigurations.

[0125] · (Reported) PMI. For example, the (reported) PMI corresponding to the subconfiguration included in the CSI. For example, the (reported) PMI corresponding to one of the multiple first subconfigurations. For example, the (reported) PMI corresponding to each of the multiple first subconfigurations.

[0126] · (Reported) CQI. For example, the (reported) CQI corresponding to the subconfiguration included in the CSI. For example, the (reported) CQI corresponding to one of the multiple first subconfigurations. For example, the (reported) CQI corresponding to each of the multiple first subconfigurations.

[0127] · (reported) LI. For example, the (reported) LI corresponding to the subconfiguration included in the CSI. For example, the (reported) LI corresponding to one of the multiple first subconfigurations. For example, the (reported) LI corresponding to each of the multiple first subconfigurations.

[0128] ·PMI. For example, the maximum number of bits corresponding to the PMI. For example, the PMI calculated / determined based on the reported rank and / or the PMI calculated / determined based on the rank allowed to be reported. For example, the number of bits corresponding to the PMI calculated / determined based on the reported rank and / or the maximum number of bits of the PMI calculated / determined based on the rank allowed to be reported. Optionally, the method for calculating the number of PMI bits refers to Example 2.

[0129] ·CQI. For example, the maximum number of bits corresponding to the CQI. For example, the CQI calculated / determined based on the reported rank and / or the CQI calculated / determined based on the rank allowed to be reported. For example, the number of bits corresponding to the CQI calculated / determined based on the reported rank and / or the maximum number of bits of the CQI calculated / determined based on the rank allowed to be reported. Optionally, the method for calculating the number of CQI bits refers to Embodiment 2.

[0130] LI. For example, the maximum number of bits corresponding to the LI. For example, the LI calculated / determined based on the reported rank and / or the LI calculated / determined based on the rank allowed to be reported. For example, the number of bits corresponding to the LI calculated / determined based on the reported rank and / or the maximum number of bits of the LI calculated / determined based on the rank allowed to be reported. Optionally, the method for calculating the number of LI bits refers to Example 2.

[0131] Optionally, the number of zero-padding bits corresponding to the parameters of the multiple first sub-configurations or the second sub-configurations (or, in the corresponding CSI) is based on / equal to the maximum number of bits calculated / determined by the rank allowed to be reported corresponding to the parameters of the multiple first sub-configurations or the second sub-configurations and the number of bits calculated / determined by the reported rank corresponding to the parameters of the multiple first sub-configurations or the second sub-configurations (respectively corresponding). For example, the number of zero-padding bits (for one sub-configuration / for the corresponding sub-configuration) is equal to / based on the cumulative sum of the maximum number of bits of the PMI (if reported) and / or the maximum number of bits of the CQI (if reported) and / or the maximum number of bits of the LI (if reported) calculated / determined by the rank allowed to be reported (of the corresponding sub-configuration) minus the cumulative sum of the number of bits of the PMI (if reported) and / or the number of bits of the CQI (if reported) and / or the number of bits of the LI (if reported) calculated / determined by the reported rank (of the corresponding sub-configuration). Here, the parameters of the plurality of first sub-configurations or the corresponding zero-padding bits (the number thereof) of the second sub-configuration may be the cumulative sum of the numbers of zero-padding bits (respectively) calculated / determined by all corresponding sub-configurations.

[0132] Optionally, the rank allowed to be reported (or, the value of the rank) is determined based on the rank restriction parameter in the CSI reporting configuration information, or, the rank allowed to be reported is determined based on the rank restriction parameter indicated / configured / associated / included by the (corresponding) sub-configuration. Optionally, when a sub-configuration does not indicate / configure / associated / include a rank restriction parameter, the rank allowed to be reported (or, the value of the rank) 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 / includes a rank restriction parameter, the rank allowed to be reported is determined based on the rank restriction parameter indicated / configured / associated / included by the (corresponding) sub-configuration.

[0133] Optionally, the order of the frequency domain related parameters corresponding to the CSI parameters may be: the order of odd subband numbers and even subband numbers, the order of subband numbers, the order of frequency domain granularity, 1 and X 2At least one of the orders. Below, the order of CSI parameters (for example, the order of multiple first sub-configurations or the order of second sub-configurations and / or the order of frequency domain-related parameters corresponding to the CSI parameters and / or the order of TBs corresponding to the CSI parameters) is explained by taking the CSI parameter being CQI as an example (or the type of the CSI parameter being CQI as an example). Optionally, the order of information bits related to CQI (for example, wideband CQI and / or subband CQI) in the CSI is based on at least one of the order of multiple first sub-configurations or the order of second sub-configurations, the order of subband numbers, the order of TBs, the order of frequency domain granularity, and the order of odd subband numbers and even subband numbers. Here, the information bit of CQI in one CSI domain is taken as an example (the information bit of the CQI may be in multiple CSI domains). Optionally, when a CSI domain is included in the CSI, and the CSI domain includes multiple (one or more) subband CQIs of the first subconfiguration or (one or more) subband CQIs of the second subconfiguration, the order of the subband CQI (or, the information bit of the subband CQI) in the CSI domain is based on the order of the multiple first subconfigurations or the second subconfigurations corresponding to the subband CQI, and / or, the order of the subband numbers corresponding to the subband CQI. For example, the subband CQI in the CSI domain is first arranged based on the order of the multiple first subconfigurations or the second subconfigurations corresponding to the subband CQI, and then based on the order of the subband numbers corresponding to the subband CQI. For example, the subband CQI in the CSI domain is first arranged based on the order of the subband numbers corresponding to the subband CQI, and then based on the order of the multiple first subconfigurations or the second subconfigurations corresponding to the subband CQI. Optionally, the subband CQI may be the subband CQI of the first TB. Optionally, the subband CQI may be the subband CQI of the second TB. Optionally, when a CSI domain is included in the CSI, and the CSI domain includes a plurality of first sub-configuration wideband CQIs (e.g., wideband CQIs of the first TB and wideband CQIs of the second TB) or wideband CQIs of the second sub-configuration (e.g., wideband CQIs of the first TB and wideband CQIs of the second TB), the order of subband CQIs (or, information bits of subband CQIs) in the CSI domain is based on the order of the plurality of first sub-configurations or second sub-configurations corresponding to the wideband CQI, and / or, the order of TBs corresponding to the wideband CQI. For example, the wideband CQI in the CSI domain is first arranged based on the order of the plurality of first sub-configurations or second sub-configurations corresponding to the wideband CQI, and then based on the order of the two TBs corresponding to the wideband CQI (e.g., the first TB is in front and the second TB is in the back, or vice versa). For example, the wideband CQI in the CSI domain is first arranged based on the order of two TBs corresponding to the wideband CQI (for example, the first TB is in front and the second TB is in the back, or vice versa), and then based on the order of multiple first sub-configurations or second sub-configurations corresponding to the subband CQI.Optionally, the information bits of the CQI may be based on the order of the multiple first sub-configurations or the second sub-configurations and the order of the frequency domain granularity (for example, wideband CQI first, then subband CQI, or vice versa). For example, the information bits of the CQI may be based on the order of the multiple first sub-configurations or the second sub-configurations first, and then the order of the frequency domain granularity. For example, the information bits of the CQI may be based on the order of the frequency domain granularity first, and then the order of the multiple first sub-configurations or the second sub-configurations. Optionally, the information bits of the CQI may be determined based on the order of odd sub-band numbers and even sub-band numbers, the order of the sub-band numbers of the CQI (corresponding), the order of the multiple first sub-configurations (or the order of the second sub-configurations), and the order of the frequency domain granularity. For example, the information bits of the CQI may be based first on the order of the odd subband numbers and the even subband numbers (e.g., odd numbers first, then even numbers, or vice versa), then based on the order of the odd subband numbers and the even subband numbers (e.g., ascending or descending order of the numbers), and finally based on the order of the multiple first sub-configurations or the second sub-configurations. For example, the information bits of the CQI may be based first on the order of the odd subband numbers and the even subband numbers (e.g., odd numbers first, then even numbers, or vice versa), then based on the order of the multiple first sub-configurations or the second sub-configurations, and finally based on the order of the odd subband numbers and the even subband numbers (e.g., ascending or descending order of the numbers).

[0134] Optionally, the order of information bits related to PMI (e.g., wideband PMI and / or subband PMI) in the CSI may be based on the order of the plurality of first sub-configurations or the order of the second sub-configurations, the order of the sub-band numbers ... 1 and X 2 The PMI parameter may include at least one of the order of the subband number, the order of the frequency domain granularity, and the order of the odd subband number and the even subband number. 1 and X 2Two parts. Here, the information bit of the PMI is taken as an example in one CSI domain (the information bit of the PMI can also be in multiple CSI domains). Optionally, when a CSI domain is included in the CSI, and the CSI domain includes multiple (one or more) subband PMIs of the first sub-configuration or (one or more) subband CQIs of the second sub-configuration, the order of the subband PMI (or, the information bit of the subband PMI) in the CSI domain is based on the order of the multiple first sub-configurations or second sub-configurations corresponding to the subband PMI, and / or, the order of the subband numbers corresponding to the subband PMI. For example, the subband PMI in the CSI domain is first arranged based on the order of the multiple first sub-configurations or second sub-configurations corresponding to the subband PMI, and then based on the order of the subband numbers corresponding to the subband PMI. For example, the subband PMI in the CSI domain is first arranged based on the order of the subband numbers corresponding to the subband PMI, and then based on the order of the multiple first sub-configurations or second sub-configurations corresponding to the subband PMI. Optionally, the CSI includes a CSI field, and the CSI field includes a plurality of first sub-configuration wideband PMIs (eg, X of the wideband PMI). 1 and Broadband PMI X 2 ) or the wideband PMI of the second sub-configuration (eg, X of the wideband PMI 1 and Broadband PMI X 2 ), the order of the subband PMI (or the information bits of the subband PMI) in the CSI domain is based on the order of the multiple first sub-configurations or the second sub-configurations corresponding to the wideband PMI, and / or the X corresponding to the wideband PMI. 1 and X 2 For example, the wideband PMI in the CSI domain is first based on the order of multiple first sub-configurations or second sub-configurations corresponding to the wideband PMI, and then based on the X corresponding to the wideband PMI. 1 and X 2 The order (for example, X 1 In front, X 2 For example, the wideband PMI in the CSI domain is first based on the X corresponding to the wideband PMI. 1 and X 2 The order (for example, X 1 In front, X 2In the first sub-configuration, the information bits of the PMI are arranged based on the order of the multiple first sub-configurations or the second sub-configurations corresponding to the subband PMI. Optionally, the information bits of the PMI may be based on the order of the multiple first sub-configurations or the second sub-configurations and the order of the frequency domain granularity (for example, wideband PMI first, subband PMI later, or vice versa). For example, the information bits of the PMI may be based on the order of the multiple first sub-configurations or the second sub-configurations first, and then based on the order of the frequency domain granularity. For example, the information bits of the PMI may be based on the order of the frequency domain granularity first, and then based on the order of the multiple first sub-configurations or the second sub-configurations. Optionally, the information bits of the PMI may be determined based on the order of odd sub-band numbers and even sub-band numbers, the order of the sub-band numbers of the PMI (corresponding), the order of the multiple first sub-configurations (or the order of the second sub-configurations), and the order of the frequency domain granularity. For example, the information bits of the PMI may be based on the order of odd subband numbers and even subband numbers (e.g., odd numbers first, even numbers later, or vice versa), then based on the order of odd subband numbers and even subband numbers respectively (e.g., ascending or descending order of numbers), and finally based on the order of multiple first sub-configurations or second sub-configurations. For example, the information bits of the PMI may be based on the order of odd subband numbers and even subband numbers (e.g., odd numbers first, even numbers later, or vice versa), then based on the order of multiple first sub-configurations or second sub-configurations, and finally based on the order of odd subband numbers and even subband numbers respectively (e.g., ascending or descending order of numbers).

[0135] Optionally, the CSI or the single-part CSI or the wideband CSI of the CSI part two (or, the order of information bits corresponding to the CSI, or, the information bits corresponding to the CSI) can be determined based on at least one of the following orders / methods (here, taking the multiple first sub-configurations or the second sub-configurations including N sub-configurations as an example):

[0136] First, based on the order of N sub-configurations; then based on the order of CSI parameter types and / or the order between zero-padding bits in CSI and CSI parameters; then based on the order of transport blocks TB corresponding to CSI parameters and / or the information field X corresponding to PMI 1 and information domain X 2 The order of the transmission blocks TB corresponding to the CSI parameters and / or the order of the frequency domain granularity. Here, the order of the transmission blocks TB corresponding to the CSI parameters may be the order of the TBs corresponding to the CQI. Each of the N sub-configurations may have the same priority (e.g., the priority for determining whether to retain or discard the CSI), so one feasible approach is to put the CSIs of the same priority together (e.g., "put together" means that their corresponding information bits are adjacent). Sorting in this manner may facilitate the retention or discarding of CSIs of the same priority as a whole, thereby improving the flexibility and / or performance of the communication system;

[0137] First, based on the order of CSI parameter types and / or the order between zero-padding bits in CSI and CSI parameters; then based on the order of N sub-configurations; then based on the order of transport blocks TB corresponding to CSI parameters and / or the information field X corresponding to PMI 1 and information domain X 2 The order of the transmission blocks TBs corresponding to the CSI parameters and / or the order of the frequency domain granularity. Here, the order of the transmission blocks TBs corresponding to the CSI parameters may be the order of the TBs corresponding to the CQI. The CSI corresponding to the same type of CSI parameters (or, the CSI corresponding to the zero-padding bits) may have the same priority (for example, the priority for determining whether to retain or discard the CSI), so one feasible way is to put the CSIs of the same priority together (for example, "put together" means that their corresponding information bits are adjacent). Sorting in this way can facilitate the retention or discarding of CSIs of the same priority as a whole, thereby improving the flexibility and / or performance of the communication system;

[0138] First, based on the order of the CSI parameter types and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of the transport blocks TB corresponding to the CSI parameters and / or the information field X corresponding to the PMI 1 and information domain X 2 The order of the transmission blocks TB corresponding to the CSI parameters may be the order of the TBs corresponding to the CQI. The CSIs of the same type of CSI parameters (or, the CSIs corresponding to the zero-padding bits) may have the same priority (for example, the priority for determining whether to retain or discard the CSI), so one feasible way is to put the CSIs of the same priority together (for example, "put together" means that their corresponding information bits are adjacent). Sorting in this way can facilitate the retention or discarding of CSIs of the same priority as a whole, thereby improving the flexibility and / or performance of the communication system.

[0139] Optionally, the CSI or CSI part one (or, the order of information bits corresponding to the CSI, or, the information bits corresponding to the CSI) may be determined based on at least one of the following orders / methods (here, taking the multiple first sub-configurations or the second sub-configurations including N sub-configurations as an example):

[0140] · First based on the order of N sub-configurations; then based on the order of the types of CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of frequency domain granularity; then based on the order of subband numbers. CSI corresponding to the same type of CSI parameters (or, CSI corresponding to the zero-padding bits) can have the same priority (for example, the priority used to determine whether to retain or discard the CSI), so one feasible way is to put CSI of the same priority together (for example, "put together" means that their corresponding information bits are adjacent). Sorting in this way can facilitate the retention or discarding of CSI of the same priority as a whole, improving the flexibility and / or performance of the communication system;

[0141] ·First, based on the order of CSI parameter types and / or the order between zero-padding bits in the CSI and CSI parameters; then based on the order of N sub-configurations; then based on the order of frequency domain granularity; then based on the order of subband numbers. CSI corresponding to the same type of CSI parameters (or, CSI corresponding to zero-padding bits) can have the same priority (for example, the priority used to determine whether to retain or discard CSI), so one feasible way is to put CSI of the same priority together (for example, "put together" means that their corresponding information bits are adjacent). Sorting in this way can facilitate the retention or discarding of CSI of the same priority as a whole, improving the flexibility and / or performance of the communication system;

[0142] ·First, based on the order of CSI parameter types and / or the order between zero-padding bits in the CSI and CSI parameters; then based on the order of frequency domain granularity; then based on the order of N sub-configurations; then based on the order of subband numbers. CSI corresponding to the same type of CSI parameters (or, CSI corresponding to zero-padding bits) can have the same priority (for example, the priority used to determine whether to retain or discard CSI), so one feasible way is to put CSI of the same priority together (for example, "put together" means that their corresponding information bits are adjacent). Sorting in this way can facilitate the retention or discarding of CSI of the same priority as a whole, improving the flexibility and / or performance of the communication system;

[0143] First, based on the order of CSI parameter types and / or the order between zero-padding bits in CSI and CSI parameters; then based on the order of frequency domain granularity; then based on the order of subband numbers; then based on the order of N sub-configurations. CSI corresponding to the same type of CSI parameters (or, CSI corresponding to zero-padding bits) can have the same priority (for example, the priority for determining whether to retain or discard CSI), so one feasible way is to put CSI of the same priority together (for example, "put together" means that their corresponding information bits are adjacent). Sorting in this way can facilitate the retention or discarding of CSI of the same priority as a whole, improving the flexibility and / or performance of the communication system.

[0144] The CSI corresponding to the odd subband number may have the same priority (for example, the priority used to determine whether to retain or discard the CSI), and the CSI corresponding to the even subband number may have the same priority, so one feasible way is to put the CSI of the same priority together (for example, "put together" means that their corresponding information bits are adjacent). This can facilitate the retention or discarding of CSI of the same priority as a whole, thereby improving the flexibility and / or performance of the communication system. Therefore, the CSI can be sorted by the following method (for example, the sorting method based on the order of odd subband numbers and even subband numbers first). Optionally, the subband CSI of the CSI or CSI part two (or, the order of information bits corresponding to the CSI, or, the information bits corresponding to the CSI) can be determined based on at least one of the following orders / methods (here, taking the multiple first sub-configurations or the second sub-configurations including N sub-configurations as an example):

[0145] First, based on the order of odd subband numbers and even subband numbers; then based on the order of N sub-configurations; then based on the order of CSI parameter types and / or the order between zero padding bits in CSI and CSI parameters; then based on the order of subband numbers;

[0146] First, based on the order of odd subband numbers and even subband numbers; then based on the order of CSI parameter types and / or the order between zero padding bits in CSI and CSI parameters; then based on the order of N sub-configurations; then based on the order of subband numbers;

[0147] First, based on the order of odd subband numbers and even subband numbers; then based on the order of CSI parameter types and / or the order between zero padding bits in the CSI and CSI parameters; then based on the order of subband numbers; and then based on the order of N sub-configurations.

[0148] Optionally, the order of the types of CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters, and the order between the subband numbers can be interchanged.

[0149] Optionally, the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters, the order of the transport blocks TB corresponding to the CSI parameters and / or the information field X corresponding to the PMI 1 and information domain X 2 The order of and / or the order of frequency domain granularity can be interchanged.

[0150] Optionally, the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters, the order of the frequency domain granularity, and the order of the subband numbers can be interchanged.

[0151] Optionally, the order of odd subband numbers and even subband numbers, the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters, and the order of the subband numbers can be interchanged.

[0152] The above-mentioned method of sorting according to the order of multiple sequences is to indicate the order of different types of sequences. If a certain order does not exist (for example, there is no CSI with corresponding characteristics in the reported CSI), it does not affect the order of other types of sequences. If a certain order does not exist (for example, there is no CSI with corresponding characteristics in the reported CSI), it does not affect the determination of CSI based on other types of sequences (or order of precedence).

[0153] Optionally, the terminal device may determine the CSI based on (the number of) multiple first sub-configurations or (the number of) first sub-configurations in the second sub-configuration. Optionally, the terminal device may determine the number of parts included in the CSI based on the number of multiple first sub-configurations or the number of first sub-configurations in the second sub-configuration. Optionally, the number may be 1 or 2. When the number of parts included in the CSI is 1, the CSI corresponds to / includes single part CSI. When the number of parts included in the CSI is 2, the CSI corresponds to / includes two parts: CSI part one and CSI part two. Optionally, CSI part two may include at least one of broadband CSI and subband CSI.

[0154] Optionally, the number of parts included in the CSI is based on the number of multiple first sub-configurations (e.g., L) or the number of first sub-configurations in the second sub-configuration (e.g., N). For example, when the number of N or L is less than or equal to a specific value, the number of parts included in the CSI is 1 (or, the CSI corresponds to a single-part CSI). For example, when the number of N or L is greater than or equal to a specific value, the number of parts included in the CSI is 2 (or, the CSI corresponds to two-part CSI). Optionally, L corresponds to the case where the CSI report is periodic. Optionally, N corresponds to the case where the CSI report is semi-persistent (or non-periodic). Optionally, the method is applicable to the case where the CSI report is PUCCH-borne. Optionally, the method is applicable to the case where the CSI corresponds to broadband CSI (or, only corresponds to broadband CSI / does not correspond to subband CSI). Optionally, the method is applicable to the case where the CSI report is periodic or semi-persistent. Optionally, the specific value may be predefined. Optionally, the specific value may be at least one of 1, 2, 3, 4, 5, 6, 7, 8. Optionally, the specific value may be based on UE capability (e.g., indicated by capability signaling reported by UE). Optionally, the specific value may be indicated by a base station (e.g., indicated by at least one of DCI, MAC-CE, and RRC signaling). By determining the number of parts included in the CSI based on N or L, it is possible to avoid the channel or signal carrying the CSI from exceeding the upper limit of the carrying capacity, thereby ensuring the reliability of the communication system. For example, when N or L is less than or equal to a specific value, due to the small CSI payload, using a single part of the CSI can simplify the generation and / or detection of the CSI and reduce the complexity of the communication system. For example, when N or L is greater than (or equal to) a specific value, due to the large CSI payload, using a single part of the CSI may exceed the upper limit of the number of bits carried by the corresponding channel / signal, and therefore it is necessary to generate two parts of the CSI, wherein the second part of the CSI can be discarded / rejected accordingly according to the carrying capacity of the channel / signal (e.g., only reporting more important information), thereby improving the reliability of CSI transmission.

[0155] Optionally, for the CSI determined by the terminal device, the CSI may include / associated with / correspond to one or more parts. For example, the one or more parts may be single-part CSI. For example, the one or more parts may be CSI part one and CSI part two. For example, the one or more parts may be CSI part one, subband CSI of CSI part two, and wideband CSI of CSI part two. The method for determining the order of CSI described in this embodiment is applicable to one part (or each part) of the one or more parts included / corresponding to / associated with the CSI.

[0156] The following further illustrates the order of CSI parameters (or CSI fields, or CSI fields corresponding to CSI parameters) and / or zero-padding bits in CSI under different scenarios / conditions through examples.

[0157] Example 1

[0158] If condition A is met, the CSI corresponds to a CSI part, and / or the CSI is based on the order of multiple first sub-configurations or the order of second sub-configurations and / or the CSI parameters corresponding to the CSI reporting configuration information and / or the order of zero-padding bits; wherein condition A refers to at least one of the following: the CSI corresponds to broadband frequency domain granularity; the CSI is configured to be carried on PUCCH or PUSCH; the number of multiple first sub-configurations or the number of second sub-configurations is less than or equal to a specific value.

[0159] For a CSI report (for example, a CSI report corresponding to CSI reporting configuration information), if condition A is satisfied, the CSI report corresponds to a CSI part, and / or the CSI order (or the order of CSI fields) in the CSI report is based on the order of the multiple first sub-configurations or the order of the second sub-configurations and / or the CSI parameters and / or the order of zero-padding bits corresponding to the CSI reporting configuration information. Optionally, condition A refers to at least one of the following:

[0160] The CSI report has / is configured with one or more first sub-configurations. For example, the CSI report configuration information corresponding to the CSI report includes / is associated with one or more first sub-configurations.

[0161] ·CSI corresponds to wideband frequency domain granularity. Optionally, the CSI report corresponds to wideband frequency domain granularity. For example, the PMI format indication parameter (pmi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandCQI'. Or, for example, the reporting quantity parameter (reportQuantity) in the CSI reporting configuration information is set to 'cri-RI-CQI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandCQI'.

[0162] ·CSI corresponds to wideband frequency domain granularity. One or more of the first subconfigurations or the second subconfiguration (or, at least one / each / all) subconfigurations correspond to wideband frequency domain granularity. For example, the PMI format indication parameter (pmi-FormatIndicator) of the subconfiguration is set to 'widebandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandCQI'. Or, for example, the reporting quantity parameter (reportQuantity) of the subconfiguration is set to 'cri-RI-CQI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandCQI'.

[0163] ·The number of multiple first sub-configurations or the number of second sub-configurations is less than or equal to a specific value. Optionally, the specific value may be predefined. For example, one of 1, 2, 3, 4, 5, 6, 7, 8. Optionally, the specific value may be based on UE capabilities. For example, the specific value is indicated by the (reported) UE capabilities (signaling). Optionally, the specific value may be indicated by the base station. For example, the specific value is configured by radio resource control (RRC) signaling. For example, the specific value is indicated by MAC-CE signaling. For example, the specific value is indicated by DCI signaling. In this way, it can be made clear that the number of one or more first sub-configurations or second sub-configurations corresponds to one part of the CSI when specific requirements are met. Using a single partial CSI can simplify the generation and / or detection of CSI and reduce the complexity of the communication system.

[0164] The number of the plurality of first sub-configurations or the number of the second sub-configurations is greater than or equal to a specific value. Optionally, the specific value may be predefined. For example, one of 1, 2, 3, 4, 5, 6, 7, 8. Optionally, the specific value may be based on UE capabilities. For example, the specific value is indicated by (reported) UE capabilities (signaling). Optionally, the specific value may be indicated by a base station. For example, the specific value is configured by RRC signaling. For example, the specific value is indicated by MAC-CE signaling. For example, the specific value is indicated by DCI signaling.

[0165] The CSI corresponds to one CSI part. One (or at least one / each / all) of the one or more first sub-configurations or the second sub-configuration corresponds to one CSI part.

[0166] · The CSI is configured (sent) on the PUCCH. For example, the reporting configuration type parameter (reportConfigType) in the CSI reporting configuration information corresponding to the CSI is set to 'periodic' or 'semiPersistentOnPUCCH'. For example, the CSI may be sent on the PUCCH. For example, the format corresponding to the PUCCH is PUCCH format 2, PUCCH format 3, or PUCCH format 4.

[0167] · The CSI is configured (transmitted) on the PUSCH. For example, the reporting configuration type parameter (reportConfigType) in the CSI reporting configuration information corresponding to the CSI is set to 'aperiodic' or 'semiPersistentOnPUSCH'. For example, the CSI may be transmitted on the PUSCH.

[0168] Optionally, the CSI report includes / corresponds to a CSI part. For example, the number of CSI parts included in the CSI report is 1. Optionally, the CSI may include at least one of CRI, RI, LI, zero padding bits, PMI, and CQI. Optionally, the PMI may include a wideband PMI and / or a subband PMI. Optionally, the PMI may include an X 1 and / or X 2 (X 1 and X 2 See below for a description of the above. Optionally, the CQI may include a wideband CQI and / or a subband CQI. Optionally, the CQI may include a (wideband) CQI of a first TB and / or a (wideband) CQI of a second TB. Here, a TB may also be referred to as a codeword. Here, a TB may also correspond to a codeword.

[0169] Optionally, the size of the CSI corresponding payload is the same / fixed. Optionally, the size of the CSI corresponding payload is the same / fixed regardless of the RI (if reported) and / or CRI (if reported). For example, by padding with zero bits, the size / number of bits (total number of bits) of the CSI payload is the same in the case of different reported RIs and / or reported CRIs.

[0170] Optionally, the order of CSI (or CSI fields) reported by the CSI may be based on at least one of the following methods:

[0171] Method 1

[0172] For the order of CSI reporting (or the domain of CSI parameters included in the CSI reporting) or the mapping order of CSI domains, see Table 1-1. Here, the CSI reporting content, for example, is that the CSI is configured to be sent on the PUCCH. The order of CSI domains in the CSI reporting can be the order from top to bottom (or, from bottom to top) in Table 1-1. Optionally, the PMI format indication parameter (pmi-FormatIndicator) in the CSI reporting configuration information corresponding to the CSI reporting is set to 'widebandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandCQI'. Or, optionally, the reporting quantity parameter (reportQuantity) in the CSI reporting configuration information corresponding to the CSI reporting is set to 'cri-RI-CQI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandCQI'.

[0173] Table 1-1

[0174]

[0175]

[0176] In Table 1-1, 'if reported' means that a specific CSI field may exist (or be reported) or may not exist (or not be reported).

[0177] In the following, Tables 5-1 to 5-4 for determining various CSI parameters are specifically given.

[0178] Optionally, in Table 1-1, CRI / RI / LI / CQI is determined based on Table 5-3 and / or 5-4. Optionally, PMI is determined based on Table 5-1 and / or 5-2 (from left to right). Optionally, PMI information field (PMI wideband information fields) X 1 is determined based on Table 5-1 and / or Table 5-2 (from left to right), or based on the codebook index for 2 antenna ports. Optionally, the PMI information field (PMI wideband information fields) X 2 It is determined based on Table 5-1 and / or Table 5-2 (from left to right), or is determined based on the codebook index (codebookindex) for 2 antenna ports.

[0179] Optionally, in Table 1-1, subconfiguration #1, subconfiguration #2, ..., subconfiguration #i reported by CSI correspond (in order) to multiple first subconfigurations (subconfiguration #1, subconfiguration #2, ..., subconfiguration #L) reported by CSI or (in order) to the second subconfiguration (subconfiguration #1, subconfiguration #2, ..., subconfiguration #N) reported by CSI. Here, the order of the multiple first subconfigurations and the order of the second subconfigurations can refer to the above description (for example, ID order, position in the configuration information, priority order).

[0180] Optionally, the calculation method for the zero padding bit of a sub-configuration is as follows. Taking sub-configuration #i as an example, the zero padding bit of sub-configuration #i is calculated / determined based on the rank allowed to be reported and / or the reported rank of sub-configuration #i. Optionally, the rank allowed to be reported (or the value of the rank) is determined based on the rank restriction parameter in the CSI reporting configuration information (corresponding to sub-configuration #i), or the rank allowed to be reported is determined based on the rank restriction parameter indicated / configured / associated / included by sub-configuration #i.

[0181] Optionally, taking subconfiguration #i as an example, the zero-padding bits of subconfiguration #i are determined based on the number of CSI-RS ports corresponding to subconfiguration #i. Optionally, the number of CSI-ports can be determined based on the port parameters included / associated / corresponding to subconfiguration #i, or the number of CSI-RS ports can be determined based on the ports (e.g., all ports) of the CSI-RS resources (for channel measurement) associated with the CSI reporting configuration information corresponding to subconfiguration #i. For example, when the port parameter is configured by subconfiguration #i, the number of CSI-RS ports of subconfiguration #i is determined based on the port parameter. For example, when the port parameter is not configured by subconfiguration #i, the number of CSI-RS ports of subconfiguration #i is determined based on the ports (e.g., all ports) of the CSI-RS resources (for channel measurement) associated with the CSI reporting configuration information corresponding to the subconfiguration.

[0182] For example, for sub-configuration #j (eg, j is an integer and 1≤j≤i), the zero-padding bits of sub-configuration #j may be determined in the following manner:

[0183] When the number of CSI-RS ports is 1, or when the number of CSI-RS ports corresponding to sub-configuration #j is 1, the number of zero-padding bits of sub-configuration #j is 0. When the number of CSI-RS ports is greater than 1, or when the number of CSI-RS ports corresponding to sub-configuration #j is greater than 1, the number of zero-padding bits of sub-configuration #j is 0. j =N max,j -N report,j .here, Among them, N max,j Indicates the maximum number of bits corresponding to the PMI, CQI, and LI corresponding to sub-configuration #j, S Rank,j represents the rank value of a set of sub-configuration #j (r j ). Optionally, the value of the rank (r j ) refers to the value of the rank that is allowed to be reported. For example, if subconfiguration #j corresponds to, is associated with, or includes a rank restriction parameter, then the rank value (r j ) corresponds to / is associated with one of the ranks (or rank values) allowed to be reported indicated by the rank restriction parameter. Here, N report,j =B(R j ), where R j represents the reported rank corresponding to subconfiguration #j (or the rank included / reported in CSI). Here, B(r j ) can be in the rank r j In the case of sub-configuration #j, the number of bits corresponding to the PMI parameter, CQI parameter, and LI parameter. Here, B(R j ) can be in the rank R j In the case of, the number of bits corresponding to the PMI parameter, CQI parameter, and LI parameter corresponding to sub-configuration #j.

[0184] Optionally, when the number of CSI-RS ports is 2, or when the number of CSI-RS ports corresponding to sub-configuration #j is 2, B(r j )=N PMI,j (r j )+N CQI,j (r j )+N LI,j (r j ). Here, N PMI,j (r j ) can be a rank r j In the case of N, the number of bits of the PMI parameter corresponding to sub-configuration #j. Here, N CQI,j (r j ) can be a rank r j In the case of N, the number of bits of the CQI parameter corresponding to sub-configuration #j. Here, N LI,j (r j ) can be in the rank r j In the case of , the number of bits of the LI parameter corresponding to sub-configuration #j.

[0185] Optionally, when the number of CSI-RS ports is greater than 2, or when the number of CSI-RS ports corresponding to sub-configuration #j is greater than 2, B(r j )=N PMI,i1,j (r j )+N PMI,i2,j (r j)+N CQI,j (r j )+N LI,j (r j ). Here, N PMI,i1,j (r j ) can be in the rank r j In the case of , the number of bits of the i1 parameter corresponding to sub-configuration #j (i1 corresponding to / associated with PMI). Here, N PMI,i2,j (r j ) can be in the rank r j In the case of, the number of bits of the i2 parameter corresponding to sub-configuration #j (i2 corresponding / associated with PMI).

[0186] Optionally, if the PMI is reported, or if the PMI corresponding to sub-configuration #j is reported, N PMI,j (1) = 2 and / or N PMI,j (1) = 2; otherwise, N PMI,j (r j )=0.

[0187] Optionally, if i1 (or i1 corresponding to / associated with PMI) is reported, or if i1 corresponding to subconfiguration #j (or i1 corresponding to / associated with PMI) is reported, N PMI,i1,j (r j ) can be determined based on Table 5-1 or Table 5-2; otherwise, N PMI,i1,j (r j )=0.

[0188] Optionally, if i2 (or, i2 corresponding to / associated with PMI) is reported, or if i2 corresponding to subconfiguration #j (or, i2 corresponding to / associated with PMI) is reported, N PMI,i2,j (r j ) can be determined based on Table 5-1 or Table 5-2; otherwise, N PMI,i2,j (r j )=0.

[0189] Optionally, if CQI is reported, or if CQI corresponding to subconfiguration #j is reported, N CQI,j (r j ) can be determined based on Table 5-3 or Table 5-4; otherwise, N CQI,j (r j )=0.

[0190] Optionally, if LI is reported, or if LI corresponding to sub-configuration j is reported, N LI,j (r j ) can be determined based on Table 5-3 or Table 5-4; otherwise, N LI,j (r j)=0.

[0191] In the above example, the method for determining the number of CSI ports corresponding to the sub-configuration is as described above. In the above example, the method for determining the rank (or the value of the rank) allowed to be reported corresponding to the sub-configuration is as described above.

[0192] Method 2

[0193] For the order of CSI reporting (or the domain of CSI parameters included in the CSI reporting) or the mapping order of CSI domains, see Table 1-2. Here, the CSI reporting content, for example, is that the CSI is configured to be sent on the PUCCH. The order of CSI domains in the CSI reporting may be the order from top to bottom (or, from bottom to top) in Table 1-2. Optionally, the PMI format indication parameter (pmi-FormatIndicator) in the CSI reporting configuration information corresponding to the CSI reporting is set to 'widebandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandCQI'. Alternatively, optionally, the reporting quantity parameter (reportQuantity) in the CSI reporting configuration information corresponding to the CSI reporting is set to 'cri-RI-CQI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandCQI'.

[0194] Table 1-2

[0195]

[0196]

[0197] In Table 1-2, "if reported" indicates that a specific CSI domain may exist (or be reported) or may not exist (or not be reported). For a CSI domain, "if reported" may indicate the CSI parameters corresponding to each sub-configuration (e.g., CRI, RI, LI, CQI, PMI, X corresponding to PMI). 1 , PMI corresponding to X 2 ) or zero-padding bits (respectively) may or may not be present.

[0198] Here, in Table 1-2, taking the CSI parameter as PMI as an example, the PMIs of subconfiguration #1, subconfiguration #2, ..., and subconfiguration #i may share one CSI domain (as described in Table 1-2), or the PMIs of subconfiguration #1, subconfiguration #2, ..., and subconfiguration #i may correspond to one CSI domain respectively. For example, the PMIs of subconfiguration #1, subconfiguration #2, ..., and subconfiguration #i correspond to i CSI domains one by one.

[0199] Taking "CRI of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i" as an example, the ordering method of the information bits in the CSI domain corresponding to subconfiguration #1, subconfiguration #2, ..., subconfiguration #i is described. For example, the order of the information bits in "CRI of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i" is based on the ascending or descending order (of the index) of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i. For example, the order is: CRI corresponding to subconfiguration #1 (corresponding information bit), CRI corresponding to subconfiguration #2 (corresponding information bit), ..., CRI corresponding to subconfiguration #i (corresponding information bit).

[0200] PMI parameters can include X 1 and X 2 .

[0201] Optionally, as shown in Table 1-2, the PMI field (subconfiguration #1, subconfiguration #2, ..., wideband PMI of subconfiguration #i) occupies one CSI field, and the order of information bits in the CSI field may be based on the order of the subconfigurations (subconfiguration #1, subconfiguration #2, ..., subconfiguration #i), and / or X 1 and X 2 For example, the order of the information bits corresponding to the PMI domain / PMI may be based on the order of the sub-configurations (sub-configuration #1, sub-configuration #2, ..., sub-configuration #i) first, and then based on the order of X 1 and X 2 Alternatively, the order of the PMI domains can be based on X 1 and X 2 (For example, X 1 In front, X 2 After; or, X 2 In front, X 1 In the order of the sub-configurations (sub-configuration #1, sub-configuration #2, ..., sub-configuration #i), the latter is based on the order of the sub-configurations (sub-configuration #1, sub-configuration #2, ..., sub-configuration #i).

[0202] Here, in Table 1-2, the PMI domain (broadband PMI of sub-configuration #1, sub-configuration #2, ..., sub-configuration #i) can be further divided into 2*i domains, and the X corresponding to the PMI of each sub-configuration is 1 X corresponding to the PMI of each sub-configuration 2 The order of these 2*i domains can be based on the order of sub-configurations (sub-configuration #1, sub-configuration #2, ..., sub-configuration #i) first, and then based on the order of X 1 and X 2 Alternatively, the order of the 2*i domains can be based on X1 and X 2 (For example, X 1 In front, X 2 After; or, X 2 In front, X 1 In the order of the sub-configurations (sub-configuration #1, sub-configuration #2, ..., sub-configuration #i), the latter is based on the order of the sub-configurations (sub-configuration #1, sub-configuration #2, ..., sub-configuration #i).

[0203] Optionally, in Table 1-2, the PMI parameters share a CSI domain (as described in Table 1-2). Alternatively, the PMI parameters correspond to two domains. For example, the first domain is the X corresponding to the PMI of sub-configuration #1, sub-configuration #2, ..., sub-configuration #i. 1 For example, the second field is the X corresponding to the PMI of sub-configuration #1, sub-configuration #2, ..., sub-configuration #i. 2 For example, the first domain comes first and the second domain comes last; or the first domain comes last and the second domain comes first.

[0204] Optionally, in Table 1-2, the CQI parameters are taken as two CSI domains as an example (as described in Table 1-2), wherein the CQI information bits are based on the order of TBs first and then on the order of sub-configurations. Optionally, the order of the CQI information bits may also be based on the order of sub-configurations first and then on the order of TBs. Optionally, in Table 1-2, in one (or each) CSI domain, the CSI parameters (e.g., CRI, RI, LI, CQI, PMI, X corresponding to PMI) are 1 , PMI corresponding to X 2 ) is based on the order of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i.

[0205] Optionally, in Table 1-2, CRI / RI / LI / CQI is determined based on Table 5-3 and / or 5-4. Optionally, PMI is determined based on Table 5-1 and / or 5-2 (from left to right). Optionally, PMI information field (PMI wideband information fields) X 1 is determined based on Table 5-1 and / or Table 5-2 (from left to right), or based on the codebook index for 2 antenna ports. Optionally, the PMI information field (PMI wideband information fields) X 2 It is determined based on Table 5-1 and / or Table 5-2 (from left to right), or is determined based on the codebook index (codebookindex) for 2 antenna ports.

[0206] Optionally, in Table 1-2, subconfiguration #1, subconfiguration #2, ..., subconfiguration #i reported by CSI correspond (in order) to multiple first subconfigurations (subconfiguration #1, subconfiguration #2, ..., subconfiguration #L) reported by CSI or (in order) to the second subconfiguration (subconfiguration #1, subconfiguration #2, ..., subconfiguration #N) reported by CSI. Here, the order of the multiple first subconfigurations and the order of the second subconfigurations can refer to the previous description (for example, ID order, position in configuration information, priority order).

[0207] Here, the method for determining the (number of) zero-padding bits of sub-configuration #1, sub-configuration #2, ..., sub-configuration #i refers to method one.

[0208] Optionally, the method for determining the (number of) zero-padding bits is as follows. Optionally, the zero-padding bits may be determined based on the CSI parameters of sub-configuration #1, sub-configuration #2, ..., sub-configuration #i. Here, the CSI parameter may be at least one of PMI, LI, CQI, RI.

[0209] Optionally, the number of zero-padding bits can be The definition of each parameter in the formula refers to Method 1.

[0210] Example 2

[0211] If condition B is met, the CSI corresponds to two CSI parts, and / or the CSI (corresponding to CSI part one) is based at least on the order of multiple first sub-configurations or the order of second sub-configurations and / or the CSI parameters and / or the order of zero-padding bits corresponding to the CSI reporting configuration information; wherein, condition B refers to at least one of the following: CSI corresponds to sub-band frequency domain granularity; CSI is configured to be carried on PUCCH or PUSCH; the number of multiple first sub-configurations or the number of second sub-configurations is greater than or equal to a specific value.

[0212] For a CSI report (e.g., a CSI report corresponding to CSI reporting configuration information), if the CSI report satisfies condition B, the CSI report corresponds to two CSI parts, and / or the order of CSI (e.g., CSI part one) in the CSI report (or the order of CSI fields in CSI part one) is based on the order of multiple first sub-configurations or the order of second sub-configurations and / or the CSI parameters and / or the order of zero-padding bits corresponding to the CSI reporting configuration information. Optionally, condition B refers to at least one of the following:

[0213] The CSI report has / is configured with one or more first sub-configurations. For example, the CSI report configuration information corresponding to the CSI report includes / is associated with one or more first sub-configurations.

[0214] ·CSI corresponds to wideband frequency domain granularity. Optionally, the CSI report corresponds to wideband frequency domain granularity. For example, the PMI format indication parameter (pmi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandCQI'. Or, for example, the reporting quantity parameter (reportQuantity) in the CSI reporting configuration information is set to 'cri-RI-CQI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandCQI'.

[0215] ·CSI corresponds to wideband frequency domain granularity. One (or at least one / each / all) of the one or more first subconfigurations or the second subconfiguration corresponds to wideband frequency domain granularity. For example, the PMI format indication parameter (pmi-FormatIndicator) of the subconfiguration is set to 'widebandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandCQI'. Or, for example, the reporting quantity parameter (reportQuantity) of the subconfiguration is set to 'cri-RI-CQI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandCQI'.

[0216] ·The number of multiple first sub-configurations or the number of second sub-configurations is greater than or equal to a specific value. Optionally, the specific value may be predefined. For example, one of 1, 2, 3, 4, 5, 6, 7, and 8. Optionally, the specific value may be based on UE capabilities. For example, the specific value is indicated by the (reported) UE capability (signaling). Optionally, the specific value may be indicated by the base station. For example, the specific value is configured by RRC signaling. For example, the specific value is indicated by MAC-CE signaling. For example, the specific value is indicated by DCI signaling. This method helps the terminal device determine when the CSI including two parts can be used. When the number of multiple first sub-configurations or second sub-configurations becomes larger (or greater than a specific value), the number of information bits corresponding to the CSI will increase, and the corresponding code rate will increase. If all are sent, the reliability of the transmission will decrease. At this time, the CSI is divided into two parts, and the second part of the CSI can be discarded, reducing the number of information bits transmitted, reducing the code rate, and improving the reliability of the transmission.

[0217] ·The number of the plurality of first sub-configurations or the number of the second sub-configurations is less than or equal to a specific value. Optionally, the specific value may be predefined. For example, one of 1, 2, 3, 4, 5, 6, 7, 8. For example, one of 1, 2, 3, 4, 5, 6, 7, 8. Optionally, the specific value may be based on UE capabilities. For example, the specific value is indicated by (reported) UE capabilities (signaling). Optionally, the specific value may be indicated by a base station. For example, the specific value is configured by RRC signaling. For example, the specific value is indicated by MAC-CE signaling. For example, the specific value is indicated by DCI signaling.

[0218] The CSI corresponds to two CSI parts. Optionally, the two CSI parts are CSI part 1 (CSI part 1) and CSI part 2 (CSI part 2). One (or at least one / each / all) sub-configuration in one or more first sub-configurations or in the second sub-configuration corresponds to two CSI parts.

[0219] The CSI corresponds to CSI part 1. For example, the sorting rule of the CSI is applicable to CSI part 1.

[0220] · The CSI is configured (transmitted) on the PUCCH. For example, the reporting configuration type parameter (reportConfigType) in the CSI reporting configuration information corresponding to the CSI is set to 'periodic' or 'semiPersistentOnPUCCH'. For example, the CSI may be transmitted on the PUCCH (eg, PUCCH format 3 or PUCCH format 4).

[0221] · The CSI is configured (transmitted) on the PUSCH. For example, the reporting configuration type parameter (reportConfigType) in the CSI reporting configuration information corresponding to the CSI is set to 'aperiodic' or 'semiPersistentOnPUSCH'. For example, the CSI may be transmitted on the PUSCH.

[0222] Optionally, the CSI report includes / corresponds to two CSI parts. For example, the CSI report includes CSI part one and CSI part two. Optionally, CSI part one includes at least one of RI, CRI, CQI and zero padding bits. Optionally, CQI may include wideband CQI and / or subband CQI. Optionally, CQI may be the CQI of the first TB. Optionally, CSI part two includes at least one of CQI, RI, LI and PMI. Optionally, CQI may be the CQI of the second TB. Here, TB may also be referred to as a codeword. Optionally, PMI may include wideband PMI and / or subband PMI. Optionally, PMI may include X1 and / or X 2 (X 1 and X 2 See below for a description of ).

[0223] Optionally, the size of the payload corresponding to CSI Part 1 is the same / fixed. Optionally, the size of the payload corresponding to CSI is the same / fixed regardless of RI (if reported) and / or CRI (if reported). For example, by padding bits with zeros, the size / number of bits (total number of bits) of the CSI payload is the same in the case of different reported RIs and / or reported CRIs. Optionally, CSI Part 1 is used to determine the number of information bits of CSI Part 2. Optionally, CSI Part 1 is transmitted inits entirety before CSI Part 2.

[0224] Optionally, the order of CSI (or CSI domain) reported by the CSI in the CSI part 1 may be based on at least one of the following methods:

[0225] Method 1

[0226] For the order of the CSI part one of the CSI report (or the domain of the CSI parameters included in the CSI part one of the CSI report) or the mapping order of the CSI domain, please refer to Table 2-1. Here, the CSI reporting content is, for example, that the CSI is configured to be sent on the PUCCH. The order of the CSI domains of the CSI part one in the CSI report can be the order from top to bottom (or, from bottom to top) in Table 2-1. Optionally, the PMI format indication parameter (pmi-FormatIndicator) in the CSI reporting configuration information corresponding to the CSI report is set to 'widebandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandCQI'. Or, optionally, the reporting quantity parameter (reportQuantity) in the CSI reporting configuration information corresponding to the CSI report is set to 'cri-RI-CQI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandCQI'.

[0227] Table 2-1

[0228]

[0229]

[0230] In Table 2-1, 'if reported' means that a specific CSI field may exist (or be reported) or may not exist (or not be reported).

[0231] Optionally, CRI / RI / CQI is determined based on Table 5-3 and / or 5-4.

[0232] Here, in Table 2-1, the subband CQI can be a subband differential CQI. For example, the CQI is represented by a differential indication based on the wideband CQI. Optionally, the subband CQI of the first TB of subconfiguration #1 may include / correspond to / associated with one or more subband CQIs. The one or more CQIs correspond to one or more subbands. Optionally, in the domain including the subband CQI of the first TB of subconfiguration #1, the order of the CQIs is based on the ascending / descending order of the subband numbers corresponding to the CQIs. Similarly, in the domain including the subband CQI of the first TB of subconfiguration #2, the order of the CQIs is based on the ascending / descending order of the subband numbers corresponding to the CQIs, and so on.

[0233] Optionally, in Table 2-1, the subband reported by CSI is indicated by the high-level parameter csi-ReportingBand (in the corresponding CSI reporting configuration information). These subbands are numbered continuously in the increasing order with the lowest subband of csi-ReportingBand as subband 0 according to the subband indicated by csi-ReportingBand.

[0234] Optionally, in Table 2-1, subconfiguration #1, subconfiguration #2, ..., subconfiguration #i reported by CSI correspond (in order) to multiple first subconfigurations (subconfiguration #1, subconfiguration #2, ..., subconfiguration #L) reported by CSI or (in order) to the second subconfiguration (subconfiguration #1, subconfiguration #2, ..., subconfiguration #N) reported by CSI. Here, the order of the multiple first subconfigurations and the order of the second subconfigurations can refer to the previous description (for example, ID order, position in configuration information, priority order).

[0235] Method 2

[0236] For the order of the CSI part 1 of the CSI report (or the domain of the CSI parameters included in the CSI part 1 of the CSI report) or the mapping order of the CSI domain, please refer to Table 2-2. Here, the CSI reporting content is, for example, that the CSI is configured to be sent on the PUCCH. The order of the CSI domains of the CSI part 1 in the CSI report can be the order from top to bottom (or, from bottom to top) in Table 2-2. Optionally, the PMI format indication parameter (pmi-FormatIndicator) in the CSI reporting configuration information corresponding to the CSI report is set to 'widebandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandCQI'. Or, optionally, the reporting quantity parameter (reportQuantity) in the CSI reporting configuration information corresponding to the CSI report is set to 'cri-RI-CQI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'widebandCQI'.

[0237] Table 2-2

[0238]

[0239] In Table 2-2, 'if reported' indicates that a specific CSI domain may exist (or be reported) or may not exist (or not be reported). For a CSI domain, 'if reported' may indicate that the CSI parameters (e.g., CRI / RI / CQI) corresponding to each sub-configuration may exist or may not exist (respectively).

[0240] Here, in Table 2-2, taking the CSI parameter as CRI as an example, the CRIs of subconfiguration #1, subconfiguration #2, ..., and subconfiguration #i may share one CSI domain (as described in Table 1-2), or the CRIs of subconfiguration #1, subconfiguration #2, ..., and subconfiguration #i may correspond to one CSI domain respectively. For example, the CRIs of subconfiguration #1, subconfiguration #2, ..., and subconfiguration #i correspond to i CSI domains one by one.

[0241] Optionally, in Table 2-2, in one (or each) CSI domain, the order of information bits of CSI parameters (e.g., CRI / RI / CQI) may be arranged in the order of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i.

[0242] Taking "CRI of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i" as an example, the ordering method of the information bits in the CSI domain corresponding to subconfiguration #1, subconfiguration #2, ..., subconfiguration #i is described. For example, the order of the information bits in "CRI of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i" is based on the ascending or descending order (of the index) of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i. For example, the order is: CRI corresponding to subconfiguration #1 (corresponding information bit), CRI corresponding to subconfiguration #2 (corresponding information bit), ..., CRI corresponding to subconfiguration #i (corresponding information bit).

[0243] Optionally, in Table 2-2, for a CSI domain including a subband CQI of the first TB of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i, the order of information bits in the CSI domain is based on the order of subband numbers corresponding to the subband CQI of the first TB (e.g., ascending or descending order) and the order of subconfigurations corresponding to the subband CQI of the first TB (e.g., ascending or descending order). For example, the information bits in the CSI domain (e.g., information bits of subband CQI) are first arranged based on the order of subband numbers corresponding to the subband CQIs, and then based on the order of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i. For example, CQI{subconfiguration #1, subband #0}, CQI{subconfiguration #2, subband #0}, ..., CQI{subconfiguration #i, subband #0}, CQI{subconfiguration #i, subband #1}, ..., CQI{subconfiguration #i, subband #max}. For example, the information bits in the CSI domain (e.g., the information bits of the subband CQI) are first arranged based on the order of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i, and then based on the order of the subband numbers corresponding to the subband CQI. For example, CQI{subconfiguration #1, subband #0}, CQI{subconfiguration #1, subband #1}, ..., CQI{subconfiguration #1, subband #max}, CQI{subconfiguration #2, subband #0}, ..., CQI{subconfiguration #i, subband #max}. Here, subband #max represents the maximum number of the subband (or, the maximum number value). Here, for the description of the subband and the subband number, refer to method one.

[0244] Optionally, the information bits corresponding to the CQI may be based on the order of the sub-configurations and the order of the frequency domain granularity. For example, in Table 2-2, the information bits corresponding to the CQI are first sorted based on the order of the frequency domain granularity and then based on the order of the sub-configurations. For example, the information bits corresponding to the CQI may also be sorted based on the order of the sub-configurations and then based on the order of the frequency domain granularity.

[0245] Optionally, CRI / RI / CQI is determined based on Table 5-3 and / or 5-4.

[0246] Optionally, in Table 2-2, subconfiguration #1, subconfiguration #2, ..., subconfiguration #i reported by CSI correspond (in order) to multiple first subconfigurations (subconfiguration #1, subconfiguration #2, ..., subconfiguration #L) reported by CSI or (in order) to the second subconfiguration (subconfiguration #1, subconfiguration #2, ..., subconfiguration #N) reported by CSI. Here, the order of the multiple first subconfigurations and the order of the second subconfigurations can refer to the previous description (for example, ID order, position priority order in configuration information).

[0247] Method 3

[0248] The order of the CSI part 1 of the CSI report (or the domain of the CSI parameter included in the CSI part 1 of the CSI report) or the mapping order of the CSI domain is shown in Table 2-3. Here, the CSI reporting content is, for example, that the CSI is configured to be sent on the PUSCH. The order of the CSI domains of the CSI part 1 in the CSI report can be the order from top to bottom (or, from bottom to top) in Table 2-3.

[0249] Table 2-3

[0250]

[0251] Here, for the description of the CSI field in Table 2-3, refer to the description of Table 2-1.

[0252] Method 4

[0253] The order of the CSI part 1 of the CSI report (or the domain of the CSI parameter included in the CSI part 1 of the CSI report) or the mapping order of the CSI domain is shown in Table 2-4. Here, the CSI reporting content is, for example, that the CSI is configured to be sent on the PUSCH. The order of the CSI domains of the CSI part 1 in the CSI report can be the order from top to bottom (or, from bottom to top) in Table 2-4.

[0254] Table 2-4

[0255]

[0256] Here, for the description of the CSI field in Table 2-4, refer to the description of Table 2-2.

[0257] Example 3

[0258] If condition C is met, the CSI corresponds to two CSI parts, and / or the CSI (corresponding to the wideband CSI of CSI part two) is based at least on the order of multiple first sub-configurations or the order of second sub-configurations and / or the CSI parameters and / or the order of zero-padding bits corresponding to the CSI reporting configuration information; wherein, condition C refers to at least one of the following: CSI corresponds to sub-band frequency domain granularity; CSI is configured to be carried on PUCCH or PUSCH; the number of multiple first sub-configurations or the number of second sub-configurations is greater than or equal to a specific value.

[0259] For a CSI report (e.g., a CSI report corresponding to CSI reporting configuration information), if the CSI report satisfies condition C, the CSI report corresponds to two CSI parts, and / or the order of CSI (e.g., wideband CSI of CSI part 2) in the CSI report (or the order of CSI domains) is based on the order of multiple first sub-configurations or the order of second sub-configurations and / or the CSI parameters and / or the order of zero-padding bits corresponding to the CSI reporting configuration information. Optionally, condition C refers to at least one of the following:

[0260] The CSI report has / is configured with one or more first sub-configurations. For example, the CSI report configuration information corresponding to the CSI report includes / is associated with one or more first sub-configurations.

[0261] ·CSI corresponding to subband frequency domain granularity. Optionally, the CSI report corresponds to subband frequency domain granularity. For example, the PMI format indication parameter (pmi-FormatIndicator) in the CSI reporting configuration information is set to 'subbandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'subbandCQI'. Or, for example, the reporting quantity parameter (reportQuantity) in the CSI reporting configuration information is set to 'cri-RI-CQI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'subbandCQI'.

[0262] ·CSI corresponds to subband frequency domain granularity. One or more of the first subconfigurations or one of the second subconfigurations (or, at least one / each / all) subconfigurations correspond to subband frequency domain granularity. For example, the PMI format indication parameter (pmi-FormatIndicator) of the subconfiguration is set to 'subbandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'subbandCQI'. Or, for example, the reporting quantity parameter (reportQuantity) of the subconfiguration is set to 'cri-RI-CQI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'subbandCQI'.

[0263] ·The number of multiple first sub-configurations or the number of second sub-configurations is greater than or equal to a specific value. Optionally, the specific value may be predefined. For example, one of 1, 2, 3, 4, 5, 6, 7, and 8. Optionally, the specific value may be based on UE capabilities. For example, the specific value is indicated by the (reported) UE capability (signaling). Optionally, the specific value may be indicated by a base station. For example, the specific value is configured by RRC signaling. For example, the specific value is indicated by MAC-CE signaling. For example, the specific value is indicated by DCI signaling. This method helps the terminal device determine when the CSI including two parts can be used. When the number of multiple first sub-configurations or second sub-configurations becomes larger (or greater than a specific value), the number of information bits corresponding to the CSI will increase, and the corresponding code rate will increase. If all are sent, the reliability of the transmission will decrease. At this time, the CSI is divided into two parts, and the second CSI part can be discarded, reducing the number of information bits transmitted, reducing the code rate, and improving the reliability of the transmission.

[0264] The number of the plurality of first sub-configurations or the number of the second sub-configurations is less than or equal to a specific value. Optionally, the specific value may be predefined. For example, one of 1, 2, 3, 4, 5, 6, 7, 8. Optionally, the specific value may be based on UE capabilities. For example, the specific value is indicated by (reported) UE capabilities (signaling). Optionally, the specific value may be indicated by a base station. For example, the specific value is configured by RRC signaling. For example, the specific value is indicated by MAC-CE signaling. For example, the specific value is indicated by DCI signaling.

[0265] The CSI corresponds to two CSI parts. Optionally, the two CSI parts are CSI part 1 (CSI part 1) and CSI part 2 (CSI part 2). One (or at least one / each / all) sub-configuration in one or more first sub-configurations or in the second sub-configuration corresponds to two CSI parts.

[0266] The CSI corresponds to the wideband CSI of CSI part 2 (CSI part 2wideband). For example, the sorting rule of the CSI is applicable to the wideband CSI of CSI part 2.

[0267] · The CSI is configured (sent) on the PUCCH. For example, the reporting configuration type parameter (reportConfigType) in the CSI reporting configuration information corresponding to the CSI is set to 'periodic' or 'semiPersistentOnPUCCH'. For example, the CSI can be sent on the PUCCH;

[0268] · The CSI is configured (transmitted) on the PUSCH. For example, the reporting configuration type parameter (reportConfigType) in the CSI reporting configuration information corresponding to the CSI is set to 'aperiodic' or 'semiPersistentOnPUSCH'. For example, the CSI may be transmitted on the PUSCH.

[0269] Optionally, the CSI report includes / corresponds to two CSI parts. For example, the CSI report includes CSI part one and CSI part two. Optionally, CSI part one includes at least one of RI, CRI, CQI and zero padding bits. Optionally, CQI may include wideband CQI and / or subband CQI. Optionally, CQI may be the CQI of the first TB. Optionally, CSI part two may include wideband CSI of CSI part two and subband CSI of CSI part two. Optionally, CSI part two (wideband CSI) includes at least one of CQI, LI and PMI. Optionally, CQI may be the CQI of the second TB. Here, TB may also be referred to as a codeword. Optionally, PMI may include wideband PMI and / or subband PMI. Optionally, PMI may include X 1 and / or X 2 (X 1 and X 2 See below for a description of ).

[0270] Optionally, the size of the payload corresponding to CSI Part 1 is the same / fixed. Optionally, the size of the payload corresponding to CSI is the same / fixed regardless of RI (if reported) and / or CRI (if reported). For example, by padding bits with zeros, the size / number of bits (total number of bits) of the CSI payload is the same in the case of different reported RIs and / or reported CRIs. Optionally, CSI Part 1 is used to determine the number of information bits of CSI Part 2. Optionally, CSI Part 1 is transmitted inits entirety before CSI Part 2.

[0271] Optionally, the order of CSI (or CSI domain) reported by the CSI in the wideband CSI of the CSI part 2 may be based on at least one of the following methods:

[0272] Method 1

[0273] For the order of the wideband CSI of the CSI part 2 of the CSI report (or the domain of the CSI parameters included in the wideband CSI of the CSI part 2 of the CSI report) or the mapping order of the CSI domains, please refer to Table 3-1. Here, the CSI reporting content, for example, is that the CSI is configured to be sent on the PUCCH. The order of the CSI domains of the wideband CSI of the CSI part 2 in the CSI report can be the order from top to bottom (or, from bottom to top) in Table 3-1. Optionally, the PMI format indication parameter (pmi-FormatIndicator) in the CSI reporting configuration information corresponding to the CSI report is set to 'subbandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'subbandCQI'. Or, optionally, a reporting quantity parameter (reportQuantity) in CSI reporting configuration information corresponding to CSI reporting is set to 'cri-RI-CQI' and / or a CQI format indicator parameter (cqi-FormatIndicator) in CSI reporting configuration information is set to 'subbandCQI'.

[0274] Table 3-1

[0275]

[0276]

[0277] In Table 3-1, 'if reported' means that a specific CSI field may exist (or be reported) or may not exist (or not be reported).

[0278] Optionally, in Table 3-1, CRI / RI / LI / CQI is determined based on Table 5-3 and / or 5-4. Optionally, PMI is determined based on Table 5-1 and / or 5-2 (from left to right). Optionally, PMI information field (PMI wideband information fields) X 1 is determined based on Table 5-1 and / or Table 5-2 (from left to right), or based on the codebook index for 2 antenna ports. Optionally, the PMI information field (PMI wideband information fields) X 2 is determined based on Table 5-1 and / or 5-2 (from left to right), or is determined based on the codebook index (codebookindex) for 2 antenna ports. Optionally, when the PMI corresponds to a wideband PMI (for example, the PMI format indicator parameter (pmi-FormatIndicator) configured in the CSI reporting configuration information is set to / equal to 'widebandPMI'), in Table 3-1, the PMI information field (PMIwideband information fields) X 2 It is determined based on Table 5-1 and / or Table 5-2 (from left to right), or is determined based on a codebook index for 2 antenna ports.

[0279] Optionally, in Table 3-1, subconfiguration #1, subconfiguration #2, ..., subconfiguration #i reported by CSI correspond (in order) to multiple first subconfigurations (subconfiguration #1, subconfiguration #2, ..., subconfiguration #L) reported by CSI or (in order) to the second subconfiguration (subconfiguration #1, subconfiguration #2, ..., subconfiguration #N) reported by CSI. Here, the order of the multiple first subconfigurations and the order of the second subconfigurations can refer to the previous description (for example, ID order, position in configuration information, priority order).

[0280] Method 2

[0281] For the order of the wideband CSI of the CSI part 2 of the CSI report (or the domain of the CSI parameters included in the wideband CSI of the CSI part 2 of the CSI report) or the mapping order of the CSI domains, please refer to Table 3-2. Here, the CSI reporting content, for example, is that the CSI is configured to be sent on the PUCCH. The order of the CSI domains of the wideband CSI of the CSI part 2 in the CSI report can be the order from top to bottom (or, from bottom to top) in Table 3-2. Optionally, the PMI format indication parameter (pmi-FormatIndicator) in the CSI reporting configuration information corresponding to the CSI report is set to 'subbandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'subbandCQI'. Or, optionally, a reporting quantity parameter (reportQuantity) in CSI reporting configuration information corresponding to CSI reporting is set to 'cri-RI-CQI' and / or a CQI format indicator parameter (cqi-FormatIndicator) in CSI reporting configuration information is set to 'subbandCQI'.

[0282] Table 3-2

[0283]

[0284] In Table 3-2, "if reported" indicates that a specific CSI domain may exist (or be reported) or may not exist (or not be reported). For a CSI domain, "if reported" may indicate the CSI parameters corresponding to each sub-configuration (e.g., CQI, LI, PMI X 1 、PMI X 2 ) or zero padding bits (respectively) may or may not exist. Here, in Table 3-2, taking the CSI parameter as LI as an example, the LIs of subconfiguration #1, subconfiguration #2, ..., and subconfiguration #i may share a CSI domain (as described in Table 3-2), or the LIs of subconfiguration #1, subconfiguration #2, ..., and subconfiguration #i may correspond to a CSI domain respectively. For example, the LIs of subconfiguration #1, subconfiguration #2, ..., and subconfiguration #i correspond to i CSI domains one by one.

[0285] Optionally, in Table 3-2, in one (or each) CSI domain, the CSI parameters (eg, CQI, LI, PMI, X corresponding to PMI) 1 , PMI corresponding to X 2 ) is arranged in the order of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i.

[0286] Taking "LI of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i" as an example, the ordering method of the information bits in the CSI domain corresponding to subconfiguration #1, subconfiguration #2, ..., subconfiguration #i is described. For example, the order of the information bits in "LI of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i" is based on the ascending or descending order (of the index) of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i. For example, the order is: LI corresponding to subconfiguration #1 (corresponding information bit), LI corresponding to subconfiguration #2 (corresponding information bit), ..., LI corresponding to subconfiguration #i (corresponding information bit).

[0287] Here, for the description of the PMI field (broadband PMI of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i), refer to Example 1 (Method 2).

[0288] Optionally, in Table 3-2, CQI / LI is determined based on Table 5-3 and / or 5-4. Optionally, PMI is determined based on Table 5-1 and / or 5-2 (from left to right). Optionally, PMI information field (PMI wideband information fields) X 1 is determined based on Table 5-1 and / or Table 5-2 (from left to right), or based on the codebook index for 2 antenna ports. Optionally, the PMI information field (PMI wideband information fields) X 2 is determined based on Table 5-1 and / or 5-2 (from left to right), or is determined based on the codebook index for 2 antenna ports. Optionally, when the PMI corresponds to a wideband PMI (for example, the PMI format indicator parameter (pmi-FormatIndicator) configured in the CSI reporting configuration information is set to / equal to 'widebandPMI'), in Table 3-1, the PMI information field (PMI widebandinformation fields) X 2 It is determined based on Table 5-1 and / or Table 5-2 (from left to right), or is determined based on a codebook index for 2 antenna ports.

[0289] Optionally, in Table 3-2, subconfiguration #1, subconfiguration #2, ..., subconfiguration #i reported by CSI correspond (in order) to multiple first subconfigurations (subconfiguration #1, subconfiguration #2, ..., subconfiguration #L) reported by CSI or (in order) to the second subconfiguration (subconfiguration #1, subconfiguration #2, ..., subconfiguration #N) reported by CSI. Here, the order of the multiple first subconfigurations and the order of the second subconfigurations can refer to the previous description (for example, ID order, position in configuration information, priority order).

[0290] Method 3

[0291] The order of the wideband CSI of the CSI part 2 of the CSI report (or the domain of the CSI parameter included in the wideband CSI of the CSI part 2 of the CSI report) or the mapping order of the CSI domain is shown in Table 3-3. Here, the CSI reporting content is, for example, that the CSI is configured to be sent on the PUSCH. The order of the CSI domains of the wideband CSI of the CSI part 2 in the CSI report can be the order from top to bottom (or, from bottom to top) in Table 3-3.

[0292] Table 3-3

[0293]

[0294]

[0295] Here, for the description of the CSI field in Table 3-3, refer to the description of Table 3-1.

[0296] Method 4

[0297] The order of the wideband CSI of the CSI part 2 of the CSI report (or the domain of the CSI parameter included in the wideband CSI of the CSI part 2 of the CSI report) or the mapping order of the CSI domain is shown in Table 3-4. Here, the CSI reporting content is, for example, that the CSI is configured to be sent on the PUSCH. The order of the CSI domains of the wideband CSI of the CSI part 2 in the CSI report can be the order from top to bottom (or, from bottom to top) in Table 3-4.

[0298] Table 3-4

[0299]

[0300] Here, for the description of the CSI field in Table 3-4, refer to the description of Table 3-2.

[0301] Example 4

[0302] If condition D is met, the CSI corresponds to two CSI parts, and / or the CSI (corresponding to the subband CSI of CSI part two) is based at least on the order of multiple first sub-configurations or the order of second sub-configurations and / or the CSI parameters and / or the order of zero-padding bits corresponding to the CSI reporting configuration information; wherein, condition D refers to at least one of the following: CSI corresponds to sub-band frequency domain granularity; CSI is configured to be carried on PUCCH or PUSCH; the number of multiple first sub-configurations or the number of second sub-configurations is greater than or equal to a specific value.

[0303] For a CSI report (e.g., a CSI report corresponding to CSI reporting configuration information), if the CSI report satisfies condition D, the CSI report corresponds to two CSI parts, and / or the order of CSI (e.g., subband CSI of CSI part 2) in the CSI report (or the order of CSI domains) is based on the order of multiple first sub-configurations or the order of second sub-configurations and / or the CSI parameters and / or the order of zero-padding bits corresponding to the CSI reporting configuration information. Optionally, condition D refers to at least one of the following:

[0304] The CSI report has / is configured with one or more first sub-configurations. For example, the CSI report configuration information corresponding to the CSI report includes / is associated with one or more first sub-configurations.

[0305] ·CSI corresponding to subband frequency domain granularity. Optionally, the CSI report corresponds to subband frequency domain granularity. For example, the PMI format indication parameter (pmi-FormatIndicator) in the CSI reporting configuration information is set to 'subbandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'subbandCQI'. Or, for example, the reporting quantity parameter (reportQuantity) in the CSI reporting configuration information is set to 'cri-RI-CQI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'subbandCQI'.

[0306] ·CSI corresponds to subband frequency domain granularity. One or more of the first subconfigurations or one of the second subconfigurations (or, at least one / each / all) subconfigurations correspond to subband frequency domain granularity. For example, the PMI format indication parameter (pmi-FormatIndicator) of the subconfiguration is set to 'subbandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'subbandCQI'. Or, for example, the reporting quantity parameter (reportQuantity) of the subconfiguration is set to 'cri-RI-CQI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'subbandCQI'.

[0307] ·The number of multiple first sub-configurations or the number of second sub-configurations is greater than or equal to a specific value. Optionally, the specific value may be predefined. For example, one of 1, 2, 3, 4, 5, 6, 7, and 8. Optionally, the specific value may be based on UE capabilities. For example, the specific value is indicated by the (reported) UE capability (signaling). Optionally, the specific value may be indicated by a base station. For example, the specific value is configured by RRC signaling. For example, the specific value is indicated by MAC-CE signaling. For example, the specific value is indicated by DCI signaling. This method helps the terminal device determine when the CSI including two parts can be used. When the number of multiple first sub-configurations or second sub-configurations becomes larger (or greater than a specific value), the number of information bits corresponding to the CSI will increase, and the corresponding code rate will increase. If all are sent, the reliability of the transmission will decrease. At this time, the CSI is divided into two parts, and the second CSI part can be discarded, reducing the number of information bits transmitted, reducing the code rate, and improving the reliability of the transmission.

[0308] The number of the plurality of first sub-configurations or the number of the second sub-configurations is less than or equal to a specific value. Optionally, the specific value may be predefined. For example, one of 1, 2, 3, 4, 5, 6, 7, 8. Optionally, the specific value may be based on UE capabilities. For example, the specific value is indicated by (reported) UE capabilities (signaling). Optionally, the specific value may be indicated by a base station. For example, the specific value is configured by RRC signaling. For example, the specific value is indicated by MAC-CE signaling. For example, the specific value is indicated by DCI signaling.

[0309] The CSI corresponds to two CSI parts. Optionally, the two CSI parts are CSI part 1 (CSI part 1) and CSI part 2 (CSI part 2). One (or at least one / each / all) sub-configuration in one or more first sub-configurations or in the second sub-configuration corresponds to two CSI parts.

[0310] The CSI corresponds to the wideband CSI of CSI part 2 (CSI part 2wideband). For example, the sorting rule of the CSI is applicable to the wideband CSI of CSI part 2.

[0311] · The CSI is configured (sent) on the PUCCH. For example, the reporting configuration type parameter (reportConfigType) in the CSI reporting configuration information corresponding to the CSI is set to 'periodic' or 'semiPersistentOnPUCCH'. For example, the CSI can be sent on the PUCCH;

[0312] · The CSI is configured (transmitted) on the PUSCH. For example, the reporting configuration type parameter (reportConfigType) in the CSI reporting configuration information corresponding to the CSI is set to 'aperiodic' or 'semiPersistentOnPUSCH'. For example, the CSI may be transmitted on the PUSCH.

[0313] Optionally, the CSI report includes / corresponds to two CSI parts. For example, the CSI report includes CSI part one and CSI part two. Optionally, CSI part two may include wideband CSI of CSI part two and subband CSI of CSI part two. Optionally, CSI part one includes at least one of RI, CRI, CQI and zero padding bits. Optionally, the CQI may include wideband CQI and / or subband CQI. Optionally, the CQI may be the CQI of the first TB. Optionally, CSI part two may include wideband CSI of CSI part two and subband CSI of CSI part two. Optionally, CSI part two (subband CSI) includes at least one of CQI and PMI. Optionally, the CQI may be the CQI of the second TB. Optionally, the CQI of the second TB includes CQI of (all) odd subband numbers of the second TB and / or CQI of (all) even subband numbers of the second TB. Here, TB may also be referred to as a codeword. Optionally, the PMI may include a wideband PMI and / or a subband PMI. Optionally, the subband PMI may include (all) odd-numbered subband PMIs and / or (all) even-numbered subband PMIs. Optionally, the PMI may include an X 1 and / or X 2 (X 1 and X 2 See below for a description of ).

[0314] Optionally, the size of the payload corresponding to CSI Part 1 is the same / fixed. Optionally, the size of the payload corresponding to CSI is the same / fixed regardless of RI (if reported) and / or CRI (if reported). For example, by padding bits with zeros, the size / number of bits (total number of bits) of the CSI payload is the same in the case of different reported RIs and / or reported CRIs. Optionally, CSI Part 1 is used to determine the number of information bits of CSI Part 2. Optionally, CSI Part 1 is transmitted inits entirety before CSI Part 2.

[0315] Optionally, the order of CSI (or CSI domain) reported by the CSI in the wideband CSI of the CSI part 2 may be based on at least one of the following methods:

[0316] Method 1

[0317] For the order of the subband CSI of the CSI part 2 of the CSI report (or the domain of the CSI parameters included in the subband CSI of the CSI part 2 of the CSI report) or the mapping order of the CSI domains, please refer to Table 4-1. Here, the CSI reporting content is, for example, that the CSI is configured to be sent on the PUCCH or PUSCH. The order of the CSI domains of the subband CSI of the CSI part 2 in the CSI report can be the order from top to bottom (or, from bottom to top) in Table 4-1. Optionally, the PMI format indication parameter (pmi-FormatIndicator) in the CSI reporting configuration information corresponding to the CSI report is set to 'subbandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'subbandCQI'. Or, optionally, a reporting quantity parameter (reportQuantity) in CSI reporting configuration information corresponding to CSI reporting is set to 'cri-RI-CQI' and / or a CQI format indicator parameter (cqi-FormatIndicator) in CSI reporting configuration information is set to 'subbandCQI'.

[0318] Table 4-1

[0319]

[0320]

[0321] In Table 4-1, 'if reported' means that a specific CSI field may exist (or be reported) or may not exist (or not be reported).

[0322] Optionally, the CQI is determined based on Table 5-3 and / or 5-4. Optionally, when the CQI corresponds to a subband CQI (for example, the CQI format indicator parameter (cqi-FormatIndicator) configured in the CSI reporting configuration information is set to / equal to 'subbandCQI'), the CQI is determined based on Table 5-3 and / or 5-4.

[0323] Optionally, the PMI information field (corresponding to) X 2 is determined based on Table 5-1 and / or 5-2 (from left to right), or based on the codebook index for 2 antenna ports. Optionally, when the PMI corresponds to a subband PMI (for example, the PMI format indicator parameter (pmi-FormatIndicator) configured in the CSI reporting configuration information is set to / equal to 'subbandPMI'), in Table 3-1, the PMI information field (corresponding to) X 2 It is determined based on Table 5-1 and / or Table 5-2 (from left to right), or is determined based on a codebook index for 2 antenna ports.

[0324] Here, in Table 4-1, the subband CQI may be a subband differential CQI. For example, the CQI is represented by a differential indication based on the wideband CQI. Optionally, the subband CQI of the first TB of subconfiguration #1 may include / correspond to / associated with one or more subband CQIs. The one or more CQIs correspond to one or more (even / odd) subbands. Optionally, in the domain of the subband CQI (even subband numbered) of the second TB of subconfiguration #1, the order of the CQIs is based on the ascending / descending order of the even subband numbers corresponding to the CQIs. Similarly, in the domain of the subband CQI of the second TB of subconfiguration #2, the order of the CQIs is based on the ascending / descending order of the (even) subband numbers corresponding to the CQIs, and so on. Optionally, in the domain of the subband CQI (odd subband numbered) of the first TB of subconfiguration #1, the order of the CQIs is based on the ascending / descending order of the odd subband numbers corresponding to the CQIs. Similarly, in the field including the subband CQIs of the first TB of subconfiguration #2, the order of the CQIs is based on the ascending / descending order of the (odd-numbered) subband numbers to which the CQIs correspond, and so on.

[0325] Here, in Table 4-1, the description or sorting method of the subband PMI (even subband numbered / odd subband numbered) is similar to that of the subband CQI, and reference may be made to the CQI (for example, the CQI in the description is replaced with PMI).

[0326] Optionally, in Table 4-1, the subband reported by CSI is indicated by the high-level parameter csi-ReportingBand (in the corresponding CSI reporting configuration information). These subbands are numbered continuously in the increasing order with the lowest subband of csi-ReportingBand as subband 0 according to the subband indicated by csi-ReportingBand.

[0327] Optionally, in Table 4-1, subconfiguration #1, subconfiguration #2, ..., subconfiguration #i reported by CSI correspond (in order) to multiple first subconfigurations (subconfiguration #1, subconfiguration #2, ..., subconfiguration #L) reported by CSI or (in order) to the second subconfiguration (subconfiguration #1, subconfiguration #2, ..., subconfiguration #N) reported by CSI. Here, the order of the multiple first subconfigurations and the order of the second subconfigurations can refer to the previous description (for example, ID order, position in configuration information, priority order).

[0328] Method 2

[0329] For the order of subband CSI of CSI part 2 of CSI reporting (or the domain of CSI parameters included in the subband CSI of CSI part 2 of CSI reporting) or the mapping order of CSI domains, please refer to Table 4-2. Here, the CSI reporting content is, for example, that the CSI is configured to be sent on PUCCH or PUSCH. The order of CSI domains of subband CSI of CSI part 2 in the CSI reporting can be the order from top to bottom (or, from bottom to top) in Table 4-2. Optionally, the PMI format indication parameter (pmi-FormatIndicator) in the CSI reporting configuration information corresponding to the CSI reporting is set to 'subbandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'subbandCQI'. Or, optionally, a reporting quantity parameter (reportQuantity) in CSI reporting configuration information corresponding to CSI reporting is set to 'cri-RI-CQI' and / or a CQI format indicator parameter (cqi-FormatIndicator) in CSI reporting configuration information is set to 'subbandCQI'.

[0330] Table 4-2

[0331]

[0332]

[0333] In Table 4-2, 'if reported' indicates that a specific CSI field may exist (or be reported) or may not exist (or not be reported).

[0334] Optionally, the CQI is determined based on Table 5-3 and / or 5-4. Optionally, when the CQI corresponds to a subband CQI (for example, the CQI format indicator parameter (cqi-FormatIndicator) configured in the CSI reporting configuration information is set to / equal to 'subbandCQI'), the CQI is determined based on Table 5-3 and / or 5-4.

[0335] Optionally, the PMI information field (corresponding to) X 2 is determined based on Table 5-1 and / or 5-2 (from left to right), or based on the codebook index for 2 antenna ports. Optionally, when the PMI corresponds to a subband PMI (for example, the PMI format indicator parameter (pmi-FormatIndicator) configured in the CSI reporting configuration information is set to / equal to 'subbandPMI'), in Table 3-1, the PMI information field (corresponding to) X 2 It is determined based on Table 5-1 and / or Table 5-2 (from left to right), or is determined based on a codebook index for 2 antenna ports.

[0336] Here, in Table 4-2, the description of each CSI field is as described in Table 4-1. Table 4-2 is different in that the CSI field / CSI information bits are first based on the order of odd and even (for example, the order of CSI corresponding to odd subband numbers and CSI corresponding to even subband numbers), then based on the order of sub-configurations, and finally based on the order of CSI parameters. Optionally, the order of CSI parameters is CQI parameters first and PMI parameters later.

[0337] The advantage of this method is that the CSI corresponding to the odd subband number and the CSI corresponding to the even subband number can be put together, so that part or all of the two parts can be discarded, thereby improving the flexibility of the communication system. For example, this method can (preferentially) discard the CSI corresponding to the odd subband number.

[0338] Method 3

[0339] For the order of subband CSI of CSI part 2 of CSI reporting (or the domain of CSI parameters included in the subband CSI of CSI part 2 of CSI reporting) or the mapping order of CSI domains, please refer to Table 4-3. Here, the CSI reporting content is, for example, that the CSI is configured to be sent on PUCCH or PUSCH. The order of CSI domains of subband CSI of CSI part 2 in the CSI reporting can be the order from top to bottom (or, from bottom to top) in Table 4-3. Optionally, the PMI format indication parameter (pmi-FormatIndicator) in the CSI reporting configuration information corresponding to the CSI reporting is set to 'subbandPMI' and / or the CQI format indication parameter (cqi-FormatIndicator) in the CSI reporting configuration information is set to 'subbandCQI'. Or, optionally, a reporting quantity parameter (reportQuantity) in CSI reporting configuration information corresponding to CSI reporting is set to 'cri-RI-CQI' and / or a CQI format indicator parameter (cqi-FormatIndicator) in CSI reporting configuration information is set to 'subbandCQI'.

[0340] Table 4-3

[0341]

[0342]

[0343] In Table 4-3, 'if reported' indicates that a specific CSI domain may exist (or be reported) or may not exist (or not be reported). For a CSI domain, 'if reported' may indicate that the CSI parameters (e.g., CQI / PMI) corresponding to each sub-configuration may exist or may not exist (respectively).

[0344] Here, in Table 4-3, taking the CSI parameter as CQI as an example, the CQIs of subconfiguration #1, subconfiguration #2, ..., and subconfiguration #i may share one CSI domain (as described in Table 1-2), or the CQIs of subconfiguration #1, subconfiguration #2, ..., and subconfiguration #i may correspond to one CSI domain respectively. For example, the CQIs of subconfiguration #1, subconfiguration #2, ..., and subconfiguration #i correspond one to one with i CSI domains.

[0345] Optionally, in Table 4-3, in one (or each) CSI domain, the order of information bits of CSI parameters (eg, CQI / PMI) may be arranged in the order of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i.

[0346] Optionally, in Table 4-3, the CSI domain / CSI information bits are first based on the order of parity (for example, the order of CSI corresponding to odd subband numbers and CSI corresponding to even subband numbers), then based on the order of CSI parameter types, then based on the order of subband numbers; and then based on the order of subconfigurations. Optionally, the order of CSI parameters is CQI parameters first, followed by PMI parameters. Optionally, in Table 4-3, the CSI domain / CSI information bits are first based on the order of parity (for example, the order of CSI corresponding to odd subband numbers and CSI corresponding to even subband numbers), then based on the order of CSI parameter types, then based on the order of subconfigurations; and then based on the order of subband numbers. Optionally, the order of CSI parameters is CQI parameters first, followed by PMI parameters.

[0347] Optionally, in Table 4-3, for the CSI domain of the subband CQI of (all) even subband numbers of the second TB of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i, the order of the information bits in the CSI domain is based on the order of the subband numbers corresponding to the subband CQI of the second TB (e.g., ascending or descending order) and the order of the subconfigurations (e.g., ascending or descending order). For example, the information bits in the CSI domain (e.g., the information bits of the subband CQI) are arranged in the order of the subband numbers corresponding to the subband CQI first, and then based on the order of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i. For example, CQI{subconfiguration #1, subband #0}, CQI{subconfiguration #2, subband #0}, ..., CQI{subconfiguration #i, subband #0}, CQI{subconfiguration #i, subband #1}, ..., CQI{subconfiguration #i, subband #max}. For example, the information bits in the CSI domain (e.g., the information bits of the subband CQI) are first arranged based on the order of subconfiguration #1, subconfiguration #2, ..., subconfiguration #i, and then based on the order of the subband numbers corresponding to the subband CQI. For example, CQI{subconfiguration #1, subband #0}, CQI{subconfiguration #1, subband #2}, ..., CQI{subconfiguration #1, subband #max}, CQI{subconfiguration #2, subband #0}, CQI{subconfiguration #2, subband #2}, ..., CQI{subconfiguration #i, subband #max}. Here, subband #max represents the maximum even number of the subband (or the maximum even number value). Here, for the description of the subband and the subband number, refer to method one.

[0348] Optionally, in Table 4-3, the description / ordering of the CSI fields for the subband CQIs of (all) odd subband numbers of the second TB including subconfiguration #1, subconfiguration #2, ..., subconfiguration #i refers to the subband CQI fields for even subband numbers (for example, replacing "even" in the description with "odd").

[0349] Here, in Table 4-3, the description or sorting method of the subband PMI (even subband numbered / odd subband numbered) is similar to that of the subband CQI, and reference may be made to the CQI (for example, the CQI in the description is replaced with PMI).

[0350] Optionally, the CQI is determined based on Table 5-3 and / or 5-4. Optionally, when the CQI corresponds to a subband CQI (for example, the CQI format indicator parameter (cqi-FormatIndicator) configured in the CSI reporting configuration information is set to / equal to 'subbandCQI'), the CQI is determined based on Table 5-3 and / or 5-4.

[0351] Optionally, the PMI information field (corresponding to) X 2 is determined based on Table 5-1 and / or 5-2 (from left to right), or based on the codebook index for 2 antenna ports. Optionally, when the PMI corresponds to a subband PMI (for example, the PMI format indicator parameter (pmi-FormatIndicator) configured in the CSI reporting configuration information is set to / equal to 'subbandPMI'), in Table 3-1, the PMI information field (corresponding to) X 2 It is determined based on Table 5-1 and / or Table 5-2 (from left to right), or is determined based on a codebook index for 2 antenna ports.

[0352] Optionally, in Table 4-3, subconfiguration #1, subconfiguration #2, ..., subconfiguration #i reported by CSI correspond (in order) to multiple first subconfigurations (subconfiguration #1, subconfiguration #2, ..., subconfiguration #L) reported by CSI or (in order) to the second subconfiguration (subconfiguration #1, subconfiguration #2, ..., subconfiguration #N) reported by CSI. Here, the order of the multiple first subconfigurations and the order of the second subconfigurations can refer to the previous description (for example, ID order, position in configuration information, priority order).

[0353] The advantage of this method is that the CSI corresponding to the odd subband number and the CSI corresponding to the even subband number can be put together, so that part or all of the two parts can be discarded, thereby improving the flexibility of the communication system. For example, this method can (preferentially) discard the CSI corresponding to the odd subband number.

[0354] The advantage of Embodiment 1 is that, when one or more sub-configurations are configured for CSI reporting, the number of parts of the CSI corresponding to the sub-configuration and / or the order of information bits of (different types of) CSI are clarified, so that the terminal device and the network device can have the same understanding of the CSI information, thereby improving the reliability of the communication system.

[0355] Embodiment 2

[0356] 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.

[0357] Optionally, the second subconfiguration includes one of the one or more first subconfigurations. Optionally, the second subconfiguration includes at least one of the subset (corresponding) subconfigurations of the one or more first subconfigurations. Here, the description of the first subconfiguration and the second subconfiguration and subset refers to Embodiment 1.

[0358] Optionally, one of the plurality of first sub-configurations or one of the second sub-configurations may be referred to as a sub-configuration. Optionally, the sub-configuration may include / indicate / configure / associate at least one of the following:

[0359] 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.

[0360] · 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.

[0361] · 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.

[0362] 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.

[0363] ·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.

[0364] ·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.

[0365] 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.

[0366] Optionally, the UE determines the second CSI based on the parameters indicated by the multiple first sub-configurations or the second sub-configurations and / or the first CSI. 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).

[0367] 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).

[0368] 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 parameter (or the amount of reporting) corresponding to (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 CSI parameter of the reporting amount 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 CSI parameters corresponding to (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 (one or each of the multiple first sub-configurations or the second sub-configurations) are CRI, RI, PMI, and CQI. For example, when the reportQuantity parameter is set to "cri-RI-i1-CQI", the corresponding CSI parameters (one or each of the multiple first sub-configurations or the second sub-configurations) are CRI, RI, PMI, and CQI. For example, when the reportQuantity parameter is set to "cri-RI-i1", the corresponding CSI parameters (one or each of the multiple first sub-configurations or the second sub-configurations) are CRI, RI, and PMI. For example, when the reportQuantity parameter is set to "cri-RI-CQI", the corresponding CSI parameters (one or each of the multiple first sub-configurations or the second sub-configurations) are CRI, RI, and CQI.

[0369] Optionally, the UE determines the second CSI parameter and / or the zero-padding bit based on the parameters indicated by the multiple first sub-configurations or the second sub-configurations and / or the first CSI parameter. Optionally, when the first condition or the second condition is met, the UE determines the second CSI parameter and / or the zero-padding bit based on the parameters indicated by the multiple first sub-configurations or the second sub-configurations and / or the first CSI parameter.

[0370] Optionally, the first condition includes at least one of the following:

[0371] 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.

[0372] The second sub-configuration is configured with type 1 parameters. Optionally, the type 1 parameters are used to indicate type 1 adaptation.

[0373] 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.

[0374] 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.

[0375] 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).

[0376] 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.

[0377] 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.

[0378] 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.

[0379] The CSI configuration information corresponds to one of aperiodic CSI reporting, semi-persistent CSI reporting and aperiodic CSI reporting.

[0380] 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".

[0381] 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".

[0382] Optionally, the second condition includes at least one of the following:

[0383] 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.

[0384] The second sub-configuration is configured with type 2 parameters. Optionally, the type 2 parameters are used to indicate type 2 adaptation.

[0385] 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.

[0386] 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.

[0387] ·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.

[0388] ·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.

[0389] 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.

[0390] The CSI configuration information corresponds to one of aperiodic CSI reporting, semi-persistent CSI reporting and aperiodic CSI reporting.

[0391] 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".

[0392] 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".

[0393] Optionally, the UE determines the CRI based on parameters indicated by multiple first subconfigurations or second subconfigurations. Optionally, the parameters indicated by one or more first subconfigurations or second subconfigurations include / refer to one or more resources indicated by one or more first subconfigurations or second subconfigurations. Optionally, when the second condition (and / or the first condition) is met, the UE determines the CRI based on one or more resources indicated by multiple first subconfigurations or second subconfigurations. For example, when the first condition or the second condition is met, for a subconfiguration (for example, one or each of multiple first subconfigurations or second subconfigurations), the CRI of the subconfiguration is determined based on one or more resources indicated by the subconfiguration. Optionally, the one or more resources are used for channel measurement. Optionally, the number of information bits corresponding to the CRI or the number of bits of the CSI domain corresponding to the CRI is based on the one or more resources. For example, for subconfiguration #j, the number of bits is equal to log 2 K j , where K j Indicates the number of one or more resources (used for channel measurement) indicated by sub-configuration #j. Optionally, the codepoint of the CRI is associated with / corresponds to the one or more resources. For example, for sub-configuration #j, the CRI (value) is k j , where k j is an integer greater than or equal to 0 (k j ≥0). Optionally, k j The lowest code point (e.g., code point 0) corresponds to the first resource of the one or more resources indicated by subconfiguration #j; j The second lowest code point (e.g., code point 1) corresponds to the second resource of the one or more resources indicated by subconfiguration #j, and so on. Here, the order of the one or more resources is based on at least one of the following:

[0394] The order of one or more resources in a resource set. For example, the order of one or more resources in a resource set associated with / corresponding to the CSI reporting configuration information corresponding to the sub-configuration (used for channel measurement).

[0395] · The order of the (configured) IDs of the one or more resources. For example, each of the one or more resources corresponds to a (configured) resource ID. The order of the one or more resources is determined based on the ascending or descending order of the IDs corresponding to the one or more resources.

[0396] The order of the one or more resources in the parameter of the sub-configuration for indicating the one or more resources. For example, the one or more resources are indicated by a parameter corresponding to / included by the sub-configuration. The order of the one or more resources is determined based on the order of the one or more resources in the parameter.

[0397] Optionally, when the first condition (and / or the second condition) is met, the UE determines the CRI based on one or more resources corresponding to the CSI reporting configuration information. Optionally, the one or more resources may be (all) resources in a resource set. Optionally, the resource set corresponds to the CSI reporting configuration information. 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 may 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 (e.g., CSI-RS). Optionally, the CSI-RS may be an NZP CSI-RS. Here, the method for determining the number of bits of the CRI based on one or more resources and / or the method for the mapping relationship between the CRI and the resource is referred to above (e.g., the method adopted when the second condition and / or the first condition is met).

[0398] For example, Table 5-3 and / or Table 5-4 show a method for determining the number of bits of CRI and / or a method for mapping CRI to resources. Here, the description of one or more resources can refer to the above.

[0399] Optionally, the UE determines the RI based on the parameters indicated by the multiple first sub-configurations or the second sub-configurations and / or the first CSI parameter (e.g., CRI). Optionally, the parameters indicated by the multiple first sub-configurations or the second sub-configurations include rank restriction parameters and / or port parameters. Optionally, the number of layers (or the total number of layers) corresponding to the RI is less than or equal to 4 (or 8). Optionally, when the first condition (and / or the second condition) is met, the UE determines the RI based on the rank restriction parameters and / or port parameters and / or CRI (e.g., reported CRI) indicated by the multiple first sub-configurations or the second sub-configurations. For example, when the first condition or the second condition is met (and the sub-configuration corresponds to a single antenna panel or the sub-configuration corresponds to a multi-antenna panel), for a sub-configuration (e.g., one or each of the multiple first sub-configurations or the second sub-configurations), the RI of the sub-configuration is determined based on the rank restriction parameters and / or port parameters and / or CRI (e.g., reported CRI) indicated by the sub-configuration. Optionally, the (reported) CRI may be understood as the channel measurement and / or interference measurement resource corresponding to the (reported) CRI. Optionally, the rank restriction parameter indicates / corresponds to the allowed rank (or the allowed RI value) of the (corresponding sub-configuration). Optionally, the port parameter may correspond to the number of ports (e.g., the number of CSI-RS antenna ports). Optionally, the number of ports (or the number of antenna ports) is the number of antenna ports included in the port subset indicated by the port parameter.

[0400] For example, when the first condition is met (and sub-configuration #j corresponds to a single antenna panel), for sub-configuration #j, the number of allowed RI values ​​is equal to n RI. Optionally, the number of bits of RI corresponding to subconfiguration #j is based on the number of antenna ports indicated by the port parameter and / or CRI (e.g., reported CRI). Optionally, the number of antenna ports (or, the number of ports) may be the number of ports indicated by the port parameter of subconfiguration #j. Here, corresponding to a single antenna panel means that the antenna panel type of the codebook corresponding to the subconfiguration or CSI reporting configuration information is a (type one) single panel (e.g., codebookType=typeI-SinglePanel), or the reporting quantity parameter (e.g., reportQuantity) corresponding to the subconfiguration or CSI reporting configuration information is 'cri-RI-CQI'. For example, when the first condition is met (and subconfiguration #j corresponds to a single antenna panel), for subconfiguration #j, the number of bits corresponding to RI is determined based on the number of ports corresponding to the port parameter indicated by subconfiguration #j and / or the allowed rank (value) and / or (reported) CRI corresponding to the rank restriction parameter. For example, when the first condition is met (and subconfiguration #j corresponds to a multi-antenna panel), for subconfiguration #j, the number of bits corresponding to the RI is determined based on the allowed rank (value) and / or (reported) CRI corresponding to the rank restriction parameter indicated by subconfiguration #j. Here, corresponding to a multi-antenna panel means that the antenna panel type of the codebook corresponding to the subconfiguration or CSI reporting configuration information is (type one) multi-panel (for example, codebookType=typeI-MultiPanel).

[0401] For example, when the second condition is met (and subconfiguration #j corresponds to a single antenna panel), for subconfiguration #j, the number of bits corresponding to the RI is determined based on the number of ports indicated by the nrofPorts parameter of the CSI-RS resource (for channel measurement) and / or the allowed rank (value) and / or (reported) CRI corresponding to the rank restriction parameter indicated by the CSI reporting configuration information. For example, when the second condition is met (and subconfiguration #j corresponds to a single antenna panel), for subconfiguration #j, the number of bits corresponding to the RI is determined based on the allowed rank (value) and / or (reported) CRI corresponding to the rank restriction parameter indicated by the CSI reporting configuration information.

[0402] For example, the method for determining the number of RI bits and / or the method for mapping RI to rank may refer to Table 5-3 and / or Table 5-4.

[0403] Optionally, the UE determines the second CSI parameter (e.g., PMI) based on the parameters indicated by the multiple first sub-configurations or the second sub-configurations and / or the first CSI parameter (e.g., CRI, RI). Optionally, the parameters indicated by the multiple first sub-configurations or the second sub-configurations include codebook type parameters, codebook mode parameters, codebook parameters, and port parameters. Optionally, when the first condition (and / or the second condition) is met, the UE determines the PMI based on the codebook type parameters, codebook mode parameters, codebook parameters, port parameters, and / or CRI (e.g., reported CRI) and / or RI (e.g., reported RI) indicated by the multiple first sub-configurations or the second sub-configurations. For example, when the first condition or the second condition is met (and the sub-configuration corresponds to a single antenna panel or the sub-configuration corresponds to a multi-antenna panel), for a sub-configuration (e.g., one or each of the multiple first sub-configurations or the second sub-configuration), the PMI of the sub-configuration is determined based on the indicated codebook type parameter, codebook mode parameter, codebook parameter, port parameter and / or CRI (e.g., reported CRI) and / or RI (e.g., reported RI) of the sub-configuration. Here, the description of CRI and RI is as above.

[0404] For example, when the first condition is met (and subconfiguration #j corresponds to a single antenna panel), for subconfiguration #j, the number of bits of the PMI corresponding to subconfiguration #j is based on at least one of the number of ports, codebook mode, codebook type, N1, N2, (reported) CRI, and (reported) RI. Optionally, the number of antenna ports may be the number of ports indicated by the port parameter of subconfiguration #j. Optionally, the codebook mode may be indicated by the codebook mode parameter of subconfiguration #j. Optionally, the codebook type may be indicated by the codebook type parameter of subconfiguration #j. Optionally, N1 may be indicated by the codebook parameter of subconfiguration #j. Optionally, N2 may be indicated by the codebook parameter of subconfiguration #j. For example, when the first condition is met (and subconfiguration #j corresponds to a multi-antenna panel), for subconfiguration #j, the number of bits of the PMI corresponding to subconfiguration #j is based on at least one of the codebook mode, codebook type, N1, N2, Ng (reported) CRI, and (reported) RI. Optionally, the codebook mode may be indicated by a codebook mode parameter of subconfiguration #j. Optionally, the codebook type may be indicated by a codebook type parameter of subconfiguration #j. Optionally, N1 may be indicated by a codebook parameter of subconfiguration #j. Optionally, N2 may be indicated by a codebook parameter of subconfiguration #j. Optionally, Ng may be indicated by a codebook parameter of subconfiguration #j.

[0405] For example, when the second condition is met (and sub-configuration #j corresponds to a single antenna panel), the number of bits of the PMI corresponding to sub-configuration #j is based on at least one of the number of ports, codebook mode, codebook type, N1, N2, (reported) CRI, and (reported) RI. For example, when the second condition is met (and sub-configuration #j corresponds to a multi-antenna panel), the number of bits of the PMI corresponding to sub-configuration #j is based on at least one of the number of ports, codebook mode, codebook type, N1, N2, Ng, (reported) CRI, and (reported) RI. Optionally, the number of antenna ports may be indicated by the nrofPorts parameter of the CSI-RS resource of the resource set (for channel measurement) corresponding to the CSI reporting configuration information (corresponding to sub-configuration #j). Optionally, the codebook mode may be indicated by a codebook mode parameter associated with / corresponding to the CSI reporting configuration information (corresponding to sub-configuration #j). Optionally, the codebook type may be indicated by a codebook type parameter associated with / corresponding to the CSI reporting configuration information (corresponding to sub-configuration #j). Optionally, N1 may be indicated by a codebook parameter associated with / corresponding to the CSI reporting configuration information (corresponding to sub-configuration #j). Optionally, N2 may be indicated by a codebook parameter associated with / corresponding to the CSI reporting configuration information (corresponding to sub-configuration #j).

[0406] For example, the method for determining the number of bits of PMI refers to Table 5-1 and / or Table 5-2.

[0407] Optionally, the UE determines the second CSI parameter (e.g., CQI) based on the parameters indicated by the multiple first sub-configurations or the second sub-configurations and / or the first CSI parameter (e.g., CRI, RI, PMI). Optionally, the parameters indicated by the multiple first sub-configurations or the second sub-configurations include port parameters and / or CQI table parameters. Optionally, when the second condition (and / or the first condition) is met, the UE determines the CQI based on the port parameters and / or CQI table parameters and / or CRI (e.g., reported CRI) and / or RI (e.g., reported RI) and / or PMI (e.g., reported PMI) indicated by the multiple first sub-configurations or the second sub-configurations. For example, when the first condition or the second condition is met (and the subconfiguration corresponds to a single antenna panel or the subconfiguration corresponds to a multi-antenna panel), for a subconfiguration (e.g., one or each of the multiple first subconfigurations or second subconfigurations), the CQI of the subconfiguration is determined based on the indicated port parameters and / or CQI table parameters and / or CRI (e.g., reported CRI) and / or RI (e.g., reported RI) and / or PMI (e.g., reported PMI) of the subconfiguration. Here, for the description of CRI, RI and PMI, see above.

[0408] For example, when the first condition is met (and subconfiguration #j corresponds to a single antenna panel), for subconfiguration #j, the number of bits of the CQI corresponding to subconfiguration #j is based on at least one of the number of antenna ports, (reported) CRI, (reported) RI and / or (reported) PMI. Optionally, the number of antenna ports may be the number of ports indicated by the port parameter of subconfiguration #j. For example, when the first condition is met (and subconfiguration #j corresponds to a multi-antenna panel), for subconfiguration #j, the number of bits of the CQI corresponding to subconfiguration #j is based on at least one of the (reported) CRI, (reported) RI and / or (reported) PMI. For example, when the first condition is met (and subconfiguration #j corresponds to a multi-antenna panel), for subconfiguration #j, the number of bits of the CQI corresponding to subconfiguration #j is predefined (for example, at least one of 1, 2, 4, 8).

[0409] For example, when the second condition is met (and sub-configuration #j corresponds to a single antenna panel), for sub-configuration #j, the number of bits of the CQI corresponding to sub-configuration #j is based on at least one of the number of antenna ports, the CQI table, the (reported) CRI, the (reported) RI, and / or the (reported) PMI. For example, when the second condition is met (and sub-configuration #j corresponds to a multi-antenna panel), for sub-configuration #j, the number of bits of the CQI corresponding to sub-configuration #j is based on at least one of the number of antenna ports, the CQI table, the (reported) CRI, the (reported) RI, and / or the (reported) PMI. Optionally, the number of antenna ports may be indicated by the nrofPorts parameter of the CSI-RS resource of the resource set (for channel measurement) corresponding to the CSI reporting configuration information (corresponding to sub-configuration #j). Optionally, the CQI table may be indicated by a CQI table parameter associated with / corresponding to the CSI reporting configuration information (corresponding to sub-configuration #j).

[0410] For example, the method for determining the number of CQI bits refers to Table 5-3 and / or Table 5-4.

[0411] Optionally, the UE determines the second CSI parameter (e.g., LI) based on the parameters indicated by the multiple first sub-configurations or the second sub-configurations and / or the first CSI parameter (e.g., CRI, RI, PMI, CQI). Optionally, the parameters indicated by the multiple first sub-configurations or the second sub-configurations include port parameters. Optionally, when the second condition (and / or the first condition) is met, the UE determines the LI based on the port parameters indicated by the multiple first sub-configurations or the second sub-configurations and / or CRI (e.g., reported CRI) and / or RI (e.g., reported RI) and / or PMI (e.g., reported PMI) and / or CQI (e.g., reported CQI). For example, when the first condition or the second condition is met (and the subconfiguration corresponds to a single antenna panel or the subconfiguration corresponds to a multi-antenna panel), for a subconfiguration (e.g., one or each of the multiple first subconfigurations or second subconfigurations), the CQI of the subconfiguration is determined based on the indicated port parameters and / or CRI (e.g., reported CRI) and / or RI (e.g., reported RI) and / or PMI (e.g., reported PMI) and / or CQI (e.g., reported CQI) of the subconfiguration. Here, for the description of CRI, RI, PMI and CQI, see above.

[0412] For example, when the first condition is met (and subconfiguration #j corresponds to a single antenna panel), for subconfiguration #j, the number of bits of the LI corresponding to subconfiguration #j is based on at least one of the number of antenna ports, (reported) CRI, (reported) RI and / or (reported) PMI and / or CQI (e.g., reported CQI). Optionally, the number of antenna ports may be the number of ports indicated by the port parameter of subconfiguration #j. For example, when the first condition is met (and subconfiguration #j corresponds to a multi-antenna panel), for subconfiguration #j, the number of bits of the LI corresponding to subconfiguration #j is based on at least one of the (reported) CRI, (reported) RI and / or (reported) PMI and / or CQI (e.g., reported CQI).

[0413] For example, when the second condition is met (and subconfiguration #j corresponds to a single antenna panel), for subconfiguration #j, the number of bits of the LI corresponding to subconfiguration #j is based on at least one of the number of antenna ports, (reported) CRI, (reported) RI and / or (reported) PMI and / or CQI (e.g., reported CQI). For example, when the second condition is met (and subconfiguration #j corresponds to a multi-antenna panel), for subconfiguration #j, the number of bits of the LI corresponding to subconfiguration #j is based on at least one of the number of antenna ports, (reported) CRI, (reported) RI and / or (reported) PMI and / or CQI (e.g., reported CQI). Optionally, the number of antenna ports may be indicated by the nrofPorts parameter of the CSI-RS resource of the resource set (for channel measurement) corresponding to the CSI reporting configuration information (corresponding to subconfiguration #j).

[0414] For example, the method for determining the number of bits of LI refers to Table 5-3 and / or Table 5-4.

[0415] Optionally, the UE determines the number of zero-padding bits based on the parameters indicated by the multiple first sub-configurations or the second sub-configurations and / or the first CSI parameters (e.g., CRI, RI, PMI, CQI, LI). Optionally, the parameters indicated by the multiple first sub-configurations or the second sub-configurations include at least one of a port parameter, a rank restriction parameter, a CQI table parameter, a codebook mode parameter, and a codebook type parameter. Optionally, when the first condition (and / or the second condition) is met, the UE determines the zero-padding bits based on at least one of the port parameters, rank restriction parameters, CQI table parameters, codebook mode parameters, and codebook type parameters indicated by the multiple first sub-configurations or the second sub-configurations and / or CRI (e.g., reported CRI) and / or RI (e.g., reported RI) and / or PMI (e.g., reported PMI) and / or CQI (e.g., reported CQI) and / or LI (e.g., reported LI). Optionally, when the first condition (and / or the second condition) is met, the UE determines the zero-padding bits based on at least one of the port parameters, rank limitation parameters, CQI table parameters, codebook mode parameters, codebook type parameters and / or CRI (e.g., reported CRI) and / or RI (e.g., reported RI) and / or PMI (e.g., reported PMI) and / or CQI (e.g., reported CQI) and / or LI (e.g., reported LI) corresponding to the CSI reporting configuration information.

[0416] Optionally, the method for calculating / determining the number of zero-padding bits refers to Example 1.

[0417] Tables 5-1 to 5-4 are given below.

[0418] Table 5-1

[0419]

[0420]

[0421] When the number of ports (the number of CSI-RS ports) is equal to 1, the number of bits (bitwidth) of the PMI is 0.

[0422] When the number of ports (the number of CSI-RS ports) is equal to 2, the rank is 1, and the parameter codebookType=typeI-SinglePanel is satisfied, the number of bits of the PMI is 2. Optionally, the rank here refers to the rank included / reported in the CSI.

[0423] When the number of ports (the number of CSI-RS ports) is equal to 2, the rank is 2, and the parameter codebookType=typeI-SinglePanel is satisfied, the number of bits of the PMI is 1. Optionally, the rank here refers to the rank included / reported in the CSI.

[0424] When the number of ports (the number of CSI-RS ports) is greater than 2 and the parameter codebookType=typeI-SinglePanel is satisfied, the number of bits of the PMI is provided / represented by Table 5-1.

[0425] Optionally, when the first condition is met (and subconfiguration #j corresponds to a single antenna panel), for subconfiguration #j, the number of ports (e.g., the number of antenna ports, or the number of CSI-RS ports) is based on / equal to the number of antenna ports corresponding to the port parameter indicated by subconfiguration #j. Optionally, when the second condition is met (and subconfiguration #j corresponds to a single antenna panel), for subconfiguration #j, the number of ports (e.g., the number of antenna ports, or the number of CSI-RS ports) is based on / equal to the number of ports of the reference signal in the reference signal set (for channel measurement) corresponding to / associated with the CSI reporting configuration information.

[0426] Optionally, when the first condition is met, N1 and N2 are indicated by corresponding sub-configurations (eg, indicated by port parameters). Optionally, when the second condition is met, N1 and N2 are indicated by codebook parameters corresponding to / associated with CSI reporting configuration information (eg, CodebookConfig).

[0427] Optionally, when the first condition is met, N1 and N2 are indicated by corresponding sub-configurations (eg, indicated by port parameters). Optionally, when the second condition is met, N1 and N2 are indicated by codebook parameters corresponding to / associated with CSI reporting configuration information (eg, CodebookConfig).

[0428] Optionally, codebookType=typeI-SinglePanel may be indicated by subconfiguration #j or configured by a codebook type parameter in the CSI reporting configuration information (corresponding to subconfiguration #j).

[0429] Optionally, codebookMode=1 or codebookMode=2 may be indicated by sub-configuration #j or configured by a codebook mode parameter in CSI reporting configuration information (corresponding to sub-configuration #j).

[0430] Table 5-2

[0431]

[0432]

[0433] When the number of ports (the number of CSI-RS ports) is equal to 1, the number of bits of the PMI is 0.

[0434] When the parameter codebookType=typeI-MultiPanel is satisfied, the number of bits (bitwidth) of the PMI is provided / represented by Table 5-2.

[0435] Optionally, when the first condition is met (and subconfiguration #j corresponds to a multi-antenna panel), for subconfiguration #j, the number of ports (e.g., the number of antenna ports, or the number of CSI-RS ports) is based on / equal to the number of antenna ports corresponding to the port parameter indicated by subconfiguration #j. Optionally, when the second condition is met (and subconfiguration #j corresponds to a multi-antenna panel), for subconfiguration #j, the number of ports (e.g., the number of antenna ports, or the number of CSI-RS ports) is based on / equal to the number of ports of the reference signal in the reference signal set (for channel measurement) corresponding to / associated with the CSI reporting configuration information.

[0436] Optionally, when the first condition is met, N1 and N2 are indicated by corresponding sub-configurations (eg, indicated by port parameters). Optionally, when the second condition is met, N1 and N2 are indicated by codebook parameters corresponding to / associated with CSI reporting configuration information (eg, CodebookConfig).

[0437] Optionally, when the first condition is met, N1, N2 and Ng are indicated by the corresponding sub-configuration (for example, indicated by a port parameter). Optionally, when the second condition is met, N1, N2 and Ng are indicated by the codebook parameter corresponding to / associated with the CSI reporting configuration information (for example, CodebookConfig).

[0438] Optionally, codebookType=typeI-MultiPanel may be indicated by subconfiguration #j or configured by a codebook type parameter in the CSI reporting configuration information (corresponding to subconfiguration #j).

[0439] Optionally, codebookMode=1 or codebookMode=2 may be indicated by sub-configuration #j or configured by a codebook mode parameter in CSI reporting configuration information (corresponding to sub-configuration #j).

[0440] Optionally, the rank here refers to the rank included / reported in the CSI.

[0441] Table 5-3

[0442]

[0443] When the parameter codebookType=typeI-SinglePanel is satisfied or the reporting quantity parameter reportQuantity is set to 'cri-RI-CQI', the bit width of RI / LI / CQI / CRI is provided / represented by Table 5-3.

[0444] In Table 5-3, K j Indicates the number of one or more resources. Optionally, the one or more resources may be one or more CSI-RS resources. Optionally, the method for determining the one or more resources is as described above. In Table 5-3, n RIIndicates the number of allowed RI values. υ refers to the rank value. The RI values ​​and the allowed values ​​are mapped to the RI values ​​based on ascending order. For example, the RI value '0' is mapped to the smallest allowed rank indicator value (The values ​​of the rank indicator field are mapped to allowed rank indicator values ​​with increasing order,where '0' is mapped to the smallest allowed rank indicator value). When the high-level parameter reportQuantity is set to 'cri-RI-CQI', the RI values ​​and the allowed values ​​are mapped to the RI values ​​based on ascending order. For example, the RI value '0' is mapped to rankindicator values ​​with increasing order,where '0' is mapped to rank-1).

[0445] Optionally, (in Table 5-3,) when the first condition is met (and subconfiguration #j corresponds to a single antenna panel), for subconfiguration #j, the number of ports (e.g., the number of antenna ports, or the number of CSI-RS ports) is based on / equal to the number of antenna ports corresponding to the port parameter indicated by subconfiguration #j. Optionally, when the second condition is met (and subconfiguration #j corresponds to a single antenna panel), for subconfiguration #j, the number of ports (e.g., the number of antenna ports, or the number of CSI-RS ports) is based on / equal to the number of ports of the reference signal in the reference signal set (for channel measurement) corresponding to / associated with the CSI reporting configuration information.

[0446] Optionally, codebookType=typeI-SinglePanel may be indicated by subconfiguration #j or configured by a codebook type parameter in the CSI reporting configuration information (corresponding to subconfiguration #j).

[0447] Table 5-4

[0448]

[0449] When the parameter codebookType=typeI-MultiPanel is satisfied, the number of bits (bitwidth) of RI / LI / CQI / CRI is provided / represented by Table 5-4.

[0450] In Table 5-4, Kj Indicates the number of one or more resources. Optionally, the one or more resources may be one or more CSI-RS resources. Optionally, the method for determining the one or more resources is as described above. In Table 5-4, n RI Indicates the number of allowed RI values. υ refers to the rank value. The values ​​of RI and the allowed values ​​are mapped to the RI values ​​based on increasing order. For example, the value of RI "0" is mapped to the smallest allowed rank indicator value (The values ​​of the rank indicator field are mapped to allowed rank indicator values ​​with increasing order, where '0' is mapped to the smallest allowed rank indicator value).

[0451] Optionally, (in Table 5-4,) when the first condition is met (and subconfiguration #j corresponds to a multi-antenna panel), for subconfiguration #j, the number of antenna ports is equal to the number of antenna ports corresponding to the port parameter indicated by subconfiguration #j. Optionally, when the second condition is met (and subconfiguration #j corresponds to a multi-antenna panel), for subconfiguration #j, the number of antenna ports is equal to the number of reference signal ports in the reference signal set (for channel measurement) corresponding to / associated with the CSI reporting configuration information.

[0452] Optionally, codebookType=typeI-MultiPanel may be indicated by subconfiguration #j or configured by a codebook type parameter in the CSI reporting configuration information (corresponding to subconfiguration #j).

[0453] The benefit of Embodiment 2 is that, when one or more sub-configurations are configured for CSI reporting, the method for determining the information / parameters of (different types of) CSI corresponding to the sub-configuration is clarified (for example, the association between the information / parameters of different types of CSI), so that the terminal device can determine and / or report the CSI based on the correct parameters, thereby improving the reliability of the communication system.

[0454] Embodiment 3

[0455] 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, sub-configuration may be referred to as sub-configuration information. Optionally, the first sub-configuration may be sub-configuration information of CSI reporting. For a description of the first sub-configuration and / or the second sub-configuration, see Embodiment 1.

[0456] Optionally, the UE determines / feeds back / reports the CSI reporting / CSI parameter / CSI corresponding to / associated with the CSI reporting configuration information. Optionally, the UE may determine the CSI reporting / CSI parameter / CSI of the second sub-configuration (included in the CSI reporting configuration information). For specific methods, see Embodiment 1.

[0457] Optionally, CSI reporting may be semi-continuous or periodic.

[0458] Optionally, the CSI report may be associated with / include a CSI / CSI parameter. Optionally, the CSI parameter may be a type-one CSI parameter. Optionally, the CSI parameter may be a specific frequency domain granularity, for example, a broadband frequency domain granularity and / or a subband frequency domain granularity. 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 (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), an SSB resource indicator (SS / PBCH Block Resource indicator, SSBRI), a layer 1-reference signal received power (L1-RSRP), a layer 1-signal interference and noise ratio (L1-SINR), and a capability index (CapabilityIndex).

[0459] Optionally, the CSI report may be carried by at least one of PUCCH format 2, PUCCH format 3 or PUCCH format 4.

[0460] For example, periodic CSI reporting on PUCCH format 2, PUCCH format 3, or PUCCH format 4 can support (type 1) CSI with broadband frequency domain granularity. The advantage of this is that CSI reporting of multiple sub-configurations may contain CSI of one or more sub-configurations, which has a large amount of information. PUCCH format 2, PUCCH format 3, and PUCCH format 4 can carry more CSI information, avoid information loss, and enhance the reliability of CSI reporting.

[0461] For example, periodic CSI reporting on PUCCH format 3 or PUCCH format 4 can support (type 1) CSI with broadband frequency domain granularity. The advantage of this is that CSI reporting of multiple sub-configurations may contain CSI of one or more sub-configurations, which has a large amount of information. PUCCH format 3 and PUCCH format 4 can carry more CSI information and have better robustness (for example, smaller peak-to-average power ratio (PAPR)), so the reliability of CSI reporting can be enhanced.

[0462] For example, periodic CSI reporting on PUCCH format 2 or PUCCH format 3 can support (type 1) CSI with broadband frequency domain granularity. The advantage of this is that CSI reporting of multiple sub-configurations may contain CSI of one or more sub-configurations, which has a large amount of information. PUCCH format 2 and PUCCH format 3 can carry more CSI information and have better robustness (for example, smaller PAPR), so the reliability of CSI reporting can be enhanced.

[0463] For example, semi-persistent CSI reporting on PUCCH format 2, PUCCH format 3 or PUCCH format 4 can support (type 1) CSI with wideband frequency domain granularity. The advantage of this is that the amount of CSI information corresponding to the semi-persistent CSI reporting of multiple sub-configurations will change according to the signaling that activates / triggers the CSI reporting. PUCCH format 2, PUCCH format 3 and PUCCH format 4 can carry more CSI information, avoid information loss, and enhance the reliability of CSI reporting.

[0464] For example, semi-persistent CSI reporting on PUCCH format 2 or PUCCH format 3 can support (type 1) CSI with broadband frequency domain granularity. The advantage of this is that the amount of CSI information corresponding to the semi-persistent CSI reporting of multiple sub-configurations will change according to the signaling that activates / trigger the CSI reporting. PUCCH format 2 and PUCCH format 3 can increase or decrease the occupied frequency domain resources accordingly in the frequency domain based on the number of information bits reported by the CSI, thereby enhancing the efficiency of the communication system.

[0465] For example, semi-persistent CSI reporting on PUCCH format 3 or PUCCH format 4 can support (type 1) CSI with wideband frequency domain granularity. The advantage of this is that the amount of CSI information corresponding to the semi-persistent CSI reporting of multiple sub-configurations will change according to the signaling that activates / triggers the CSI reporting. PUCCH format 3 and PUCCH format 4 can carry more CSI information and have better robustness (for example, smaller PAPR), so the reliability of CSI reporting can be enhanced.

[0466] For example, semi-persistent (above) CSI reporting on PUCCH format 3 can support (type 1) CSI with wideband frequency domain granularity. The advantage of this is that the amount of CSI information corresponding to the semi-persistent CSI reporting of multiple sub-configurations will change according to the signaling that activates / triggers the CSI reporting. PUCCH format 3 can increase or decrease the occupied frequency domain resources accordingly in the frequency domain based on the number of information bits reported by the CSI, thereby enhancing the efficiency of the communication system.

[0467] For example, semi-persistent CSI reporting on PUCCH format 3 can support (type 1) CSI with sub-band frequency domain granularity (and / or wideband frequency domain granularity). The advantage of this is that the amount of CSI information corresponding to the semi-persistent CSI reporting of multiple sub-configurations will change according to the signaling that activates / trigger the CSI reporting. PUCCH format 3 can increase or decrease the occupied frequency domain resources accordingly in the frequency domain based on the number of information bits reported by the CSI, thereby enhancing the efficiency of the communication system.

[0468] For example, semi-persistent CSI reporting on PUCCH format 3 or PUCCH format 4 can support (type 1) CSI with subband frequency domain granularity (and / or wideband frequency domain granularity). The advantage of this is that the amount of CSI information corresponding to the semi-persistent CSI reporting of multiple sub-configurations will change according to the signaling that activates / trigger the CSI reporting. PUCCH format 3 and PUCCH format 4 can carry more CSI information and have better robustness (for example, smaller PAPR), so the reliability of CSI reporting can be enhanced.

[0469] The benefit of the third embodiment is that, when one or more sub-configurations are configured for CSI reporting, the terminal device and the network device can have the same understanding of the container carrying the corresponding CSI, thereby improving the reliability of the communication system. In addition, this method further limits / specifies which PUCCH formats can be used to carry specific CSI reports based on multiple sub-configurations, thereby avoiding errors or performance degradation in CSI reporting caused by carrying the wrong PUCCH format, thereby improving the reliability of the communication system.

[0470] 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 information for CSI reporting configuration to a user equipment; at 502, the base station receives a CSI report determined based on the information for CSI reporting configuration from the user equipment.

[0471] Figure 6 FIG. 6 shows a structure 600 of a user equipment according to various embodiments of the present disclosure. Figure 6As 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.

[0472] 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.

[0473] 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.

[0474] In the present application, "reference signal" can be equivalently replaced with "reference signal resource". In the present invention, "if reported" can be equivalently replaced with "if present" or "if applicable" or "if required". In addition, "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 (CSI report setting)".

[0475] 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”.

[0476] 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.

[0477] 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.

[0478] 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.

[0479] 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.

[0480] 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.

[0481] 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.

[0482] 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 channel state information (CSI) reporting configuration includes a plurality of first sub-configurations; Determining and / or reporting the CSI based on a second sub-configuration, wherein the second sub-configuration includes N of the multiple first sub-configurations, where N is not less than 1; The CSI includes one or two CSI parts, and the number of CSI parts included in the CSI is determined based on N, and / or at least one CSI part of the one or two CSI parts included in the CSI is determined based on a first order, wherein the first order includes at least one of the following: an order of the N first subconfigurations in the second subconfiguration; the order of CSI parameters in the CSI; The order between the zero-padding bits in the CSI and the CSI parameters.

2. The method according to claim 1, wherein: The number of CSI parts included in the CSI is determined based on the N, including: When N is less than or equal to a value indicated by higher layer signaling, the number of CSI parts included in the CSI is 1.

3. The method according to claim 1, wherein: The number of CSI parts included in the CSI is determined based on the N, including: When N is greater than or equal to a value indicated by higher layer signaling, the number of CSI parts included in the CSI is 2.

4. The method according to any one of claims 1 to 3, wherein: The order of the N first sub-configurations in the second sub-configuration includes one of the following: The order of the identification IDs of the N first sub-configurations in the second sub-configuration; An order of the N first sub-configurations in the second sub-configuration in the CSI reporting configuration; The order of priorities of the N first sub-configurations in the second sub-configuration.

5. The method according to claim 4, wherein: The priority is determined based on at least one of the following: an ID of a first subconfiguration in the second subconfiguration; a position of the first sub-configuration in the second sub-configuration in the CSI reporting configuration; The number of resources corresponding to the first sub-configuration in the second sub-configuration; The number of ports corresponding to the first sub-configuration in the second sub-configuration.

6. The method according to any one of claims 1 to 5, wherein: Determining the single-part CSI in the CSI or the wideband CSI of the CSI part 2 in the CSI based on the first order includes: First, based on the order of the N first sub-configurations; then based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of the transport blocks TB corresponding to the CSI parameters and / or the order of the information fields X1 and X2 corresponding to the precoding matrix indicator PMI and / or the order of the frequency domain granularity; or, First, based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of the N first sub-configurations; then based on the order of the transport blocks TB corresponding to the CSI parameters and / or the order of the information fields X1 and X2 corresponding to the PMI and / or the order of the frequency domain granularity; or, First, based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of the transport blocks TB corresponding to the CSI parameters and / or the order of the information fields X1 and X2 corresponding to the PMI and / or the order of the frequency domain granularity; and then based on the order of the N first sub-configurations.

7. The method according to any one of claims 1 to 5, wherein: The CSI part in the CSI is determined based on the first order and includes: First, based on the order of the N first sub-configurations; then based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of the frequency domain granularity; then based on the order of the subband numbers, or, First, based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of the N first sub-configurations; then based on the order of the frequency domain granularity; then based on the order of the subband numbers; or, First, based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of the frequency domain granularity; then based on the order of the N first sub-configurations; then based on the order of the sub-band numbers; or, First, based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of frequency domain granularity; then based on the order of subband numbers; and then based on the order of the N first sub-configurations.

8. The method according to claim 1, wherein: The subband CSI of the CSI part 2 in the CSI is determined based on the first order and includes: First, based on the order of odd subband numbers and even subband numbers; then based on the order of N first sub-configurations; then based on the order of the types of the CSI parameters and / or the order between the zero padding bits in the CSI and the CSI parameters; then based on the order of the subband numbers; or, First, based on the order of odd subband numbers and even subband numbers; then based on the order of the types of the CSI parameters and / or the order between the zero padding bits in the CSI and the CSI parameters; then based on the order of the N first sub-configurations; then based on the order of the subband numbers; or, First, based on the order of odd subband numbers and even subband numbers; then based on the order of the types of the CSI parameters and / or the order between the zero-padding bits in the CSI and the CSI parameters; then based on the order of the subband numbers; and then based on the order of the N first sub-configurations.

9. The method according to claim 1, wherein: The number of each type of CSI parameters in the CSI parameters is determined based on the N.

10. The method according to claim 1, wherein: The CRI in the CSI parameter corresponding to a first sub-configuration in the second sub-configuration is determined based on at least one of the following: A resource set for channel measurement corresponding to the CSI reporting configuration; One or more resources corresponding to a first sub-configuration in the second sub-configuration.

11. The method according to claim 10, wherein: The RI in the CSI parameter corresponding to a first sub-configuration in the second sub-configuration is determined based on at least one of the following: at least one of an indicated allowed rank and number of ports of a first subconfiguration in the second subconfiguration; At least one of the allowed rank and the number of ports corresponding to the information for CSI reporting configuration; A first sub-configuration in the second sub-configuration corresponds to the CRI in the CSI parameter.

12. The method according to any one of claims 10 to 11, wherein: The PMI in the CSI parameter corresponding to a first sub-configuration in the second sub-configuration is determined based on at least one of the following: At least one of the number of ports indicated in a first subconfiguration of the second subconfiguration, a codebook mode, a codebook type, a first dimension parameter N1, a second dimension parameter N2, and a parameter Ng for a multi-panel; At least one of the number of ports, codebook mode, codebook type, N1, N2, and Ng corresponding to the CSI reporting configuration; A first sub-configuration in the second sub-configuration corresponds to CRI and / or RI in the CSI parameters.

13. The method according to any one of claims 10 to 12, wherein: A CQI in a CSI parameter corresponding to a first sub-configuration in the second sub-configuration is determined based on at least one of the following: a CQI table corresponding to a port number indicated by a first sub-configuration in the second sub-configuration and the CSI reporting configuration; The number of ports corresponding to the CSI reporting configuration and the CQI table indicated by the second sub-configuration; A first sub-configuration in the second sub-configuration corresponds to at least one of CRI, RI, and PMI in the CSI parameters.

14. The method according to any one of claims 10 to 13, wherein: The LI in the CSI parameter corresponding to a first sub-configuration in the second sub-configuration is determined based on at least one of the following: an indicated number of ports of a first subconfiguration of the second subconfiguration; The number of ports corresponding to the CSI reporting configuration; A first sub-configuration in the second sub-configuration corresponds to at least one of CRI, RI, PMI, and CQI in the CSI parameters.

15. The method according to any one of claims 10 to 14, wherein: The number of zero-padding bits corresponding to a first sub-configuration in the second sub-configuration is determined based on at least one of the following corresponding to the corresponding first sub-configuration: The indicated rank that is allowed to be reported; A first sub-configuration in the second sub-configuration corresponds to the RI in the CSI parameter; The number of bits corresponding to the PMI in the CSI parameter corresponding to a first sub-configuration in the second sub-configuration; The number of bits corresponding to the CQI in the CSI parameter corresponding to a first sub-configuration in the second sub-configuration; The number of bits corresponding to the LI in the CSI parameter corresponding to a first sub-configuration in the second sub-configuration; The maximum number of bits corresponding to the PMI; The maximum number of bits corresponding to CQI; The maximum number of bits corresponding to LI.

16. The method according to claim 1, wherein: The number of zero-padding bits corresponding to the N first sub-configurations in the second sub-configuration is determined based on at least one of the following corresponding to each first sub-configuration in the second sub-configuration: The indicated rank that is allowed to be reported; Reported RIs; The number of bits corresponding to the reported PMI; The number of bits corresponding to the reported CQI; The number of bits corresponding to the reported LI; The maximum number of bits corresponding to the PMI; The maximum number of bits corresponding to CQI; The maximum number of bits corresponding to LI.

17. The method according to any one of claims 1 to 16, wherein: The second sub-configuration is indicated by signaling that triggers CSI reporting corresponding to the CSI reporting configuration.

18. 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 channel state information CSI reporting configuration includes a plurality of first sub-configurations; Receiving CSI, wherein the CSI is determined based on a second subconfiguration, the second subconfiguration including N of the plurality of first subconfigurations, where N is not less than 1; The CSI includes one or two CSI parts, and the number of CSI parts included in the CSI is determined based on N, and / or at least one CSI part of the one or two CSI parts included in the CSI is determined based on a first order, wherein the first order includes at least one of the following: an order of the N first subconfigurations in the second subconfiguration; the order of CSI parameters in the CSI; The order between the zero-padding bits in the CSI and the CSI parameters.

19. A user equipment, comprising a transceiver and a controller coupled to the transceiver, the controller being configured to execute the method according to any one of claims 1-17.

20. A base station comprising a transceiver and a controller coupled to the transceiver, the controller being configured to perform the method of claim 18.

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