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 configuration information for sub-band non-overlapping full duplex (SBFD), the configuration information indicating an SBFD frequency domain resource; receiving channel state information (CSI) reporting configuration; and determining a CSI reporting frequency band for reporting the CSI associated with the CSI reporting configuration based on the SBFD frequency domain resource.

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] 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 "beyond 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. To reduce radio wave propagation losses and increase transmission distances, 5G communication systems utilize technologies such as beamforming, massive multiple-input multiple-output (MIMO), full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, and massive antennas.

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

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

[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] To improve the scheduling efficiency of 5G wireless communication systems, base stations need to obtain channel state information (CSI) to perform scheduling based on CSI feedback from terminal devices. However, further improving the performance of CSI reporting remains an unresolved issue.

[0008] One aspect of the present disclosure provides a method performed by a user equipment (UE) in a wireless communication system, the method comprising: receiving configuration information for sub-band non-overlapping full-duplex (SBFD), wherein the configuration information indicates SBFD frequency domain resources; receiving a channel state information (CSI) reporting configuration; and determining, based on the SBFD frequency domain resources, a CSI reporting frequency band for reporting CSI associated with the CSI reporting configuration.

[0009] In one example, the CSI reporting frequency band includes at least one of the following: a subset of a CSI subband; a physical resource block PRB in a bandwidth part BWP associated with the CSI reporting configuration.

[0010] In one example, when the number of PRBs in the BWP is less than or equal to a predefined value, or the number of PRBs in the downlink subband included in the SBFD frequency domain resources of the BWP is less than or equal to a predefined value: the CSI reporting band includes the frequency domain resources of the BWP in the downlink subband included in the SBFD frequency domain resources; or, the CSI reporting band includes all PRBs in the BWP; or, the BWP is not configured to be outside the downlink subband included in the SBFD frequency domain resources.

[0011] In one example, the CSI subband is within the BWP.

[0012] In one example, the number of CSI subbands included in the CSI subband is determined based on the number of bits in the bitmap included in the CSI reporting band parameter associated with the CSI reporting configuration, and the CSI subband with the lowest frequency domain position in the CSI subband is the CSI subband with the lowest frequency domain position in the BWP.

[0013] In one example, the bitmap indicates one or more CSI subbands among the CSI subbands, and wherein the subset of the CSI subbands includes CSI subbands within a downlink subband included in the SBFD frequency domain resources among the one or more CSI subbands.

[0014] In an example, the CSI subband is within the BWP and within a downlink subband included in the SBFD frequency domain resources.

[0015] In one example, the number of CSI subbands included in the CSI subband is determined based on the number of bits in the bitmap included in the CSI reporting frequency band parameter associated with the CSI reporting configuration, and the CSI subband with the lowest frequency domain position in the CSI subband is the CSI subband with the lowest frequency domain position within the BWP and within the downlink subband included in the SBFD frequency domain resources.

[0016] In one example, the bitmap indicates one or more CSI subbands among the CSI subbands, and the subset of the CSI subbands includes the one or more CSI subbands.

[0017] In one example, the method further includes: for each CSI subband in the CSI subband: determining a first CSI subband size from configurable CSI subband sizes based on parameters related to the subband size included in the CSI reporting configuration, wherein the configurable CSI subband size is determined based on the frequency domain resources of the BWP within the downlink subband included in the SBFD frequency domain resources or based on the BWP.

[0018] In one example, each of the CSI subbands is associated with N SB consecutive PRBs, where N SB is determined based on the first CSI subband size; and / or, the N SB The number of the reference common resource block CRB corresponding to the starting PRB of consecutive PRBs is N SB An integer multiple of .

[0019] In one example, the frequency domain resources of each CSI subband in the subset of the CSI subbands are based on the N SB The continuous PRBs are within the BWP and are determined by a PRB subset within a downlink subband included in the SBFD frequency domain resources.

[0020] In one example, the PRBs included in the PRB subset are continuous; or, if the PRBs included in the PRB subset are continuous, the frequency domain resources of each CSI subband are the PRB subset; or, if the PRBs included in the PRB subset are non-continuous, the frequency domain resources of each CSI subband are a set of continuous PRBs predefined in the PRB subset.

[0021] In an example, the CSI subbands in the downlink subbands included in the SBFD frequency domain resources in the subset of the CSI subbands are numbered consecutively.

[0022] In one example, determining the CSI reporting frequency band is further based on the SBFD time domain resources indicated by the configuration information.

[0023] Another aspect of the present disclosure provides a method performed by a base station in a wireless communication system, the method comprising: sending configuration information for sub-band non-overlapping full-duplex (SBFD), wherein the configuration information indicates SBFD frequency domain resources; sending channel state information (CSI) reporting configuration; and receiving CSI associated with a CSI reporting frequency band, wherein the CSI reporting frequency band is determined based on the SBFD frequency domain resources.

[0024] In one example, the CSI reporting frequency band includes at least one of the following: a subset of a CSI subband; a physical resource block PRB in a bandwidth part BWP associated with the CSI reporting configuration.

[0025] In one example, when the number of PRBs in the BWP is less than or equal to a predefined value, or the number of PRBs in the downlink subband included in the SBFD frequency domain resources of the BWP is less than or equal to a predefined value: the CSI reporting band includes the frequency domain resources of the BWP in the downlink subband included in the SBFD frequency domain resources; or, the CSI reporting band includes all PRBs in the BWP; or, the BWP is not configured to be outside the downlink subband included in the SBFD frequency domain resources.

[0026] In one example, the CSI subband is within the BWP.

[0027] In one example, the number of CSI subbands included in the CSI subband is determined based on the number of bits in the bitmap included in the CSI reporting band parameter associated with the CSI reporting configuration, and the CSI subband with the lowest frequency domain position in the CSI subband is the CSI subband with the lowest frequency domain position in the BWP.

[0028] In one example, the bitmap indicates one or more CSI subbands among the CSI subbands, and wherein the subset of the CSI subbands includes CSI subbands within a downlink subband included in the SBFD frequency domain resources among the one or more CSI subbands.

[0029] In an example, the CSI subband is within the BWP and within a downlink subband included in the SBFD frequency domain resources.

[0030] In one example, the number of CSI subbands included in the CSI subband is determined based on the number of bits in the bitmap included in the CSI reporting frequency band parameter associated with the CSI reporting configuration, and the CSI subband with the lowest frequency domain position in the CSI subband is the CSI subband with the lowest frequency domain position within the BWP and within the downlink subband included in the SBFD frequency domain resources.

[0031] In one example, the bitmap indicates one or more CSI subbands among the CSI subbands, and the subset of the CSI subbands includes the one or more CSI subbands.

[0032] In one example, the method further includes: having a first CSI subband size for each CSI subband in the CSI subbands, wherein the first CSI subband size is determined from configurable CSI subband sizes based on subband size-related parameters included in the CSI reporting configuration, and wherein the configurable CSI subband size is determined based on the frequency domain resources of the BWP within the downlink subband included in the SBFD frequency domain resources or based on the BWP.

[0033] In one example, each of the CSI subbands is associated with N SB consecutive PRBs, where N SB is determined based on the first CSI subband size; and / or, the N SB The number of the reference common resource block CRB corresponding to the starting PRB of consecutive PRBs is N SB An integer multiple of .

[0034] In one example, the frequency domain resources of each CSI subband in the subset of the CSI subbands are based on the N SB The continuous PRBs are within the BWP and are determined by a PRB subset within a downlink subband included in the SBFD frequency domain resources.

[0035] In one example, the PRBs included in the PRB subset are continuous; or, if the PRBs included in the PRB subset are continuous, the frequency domain resources of each CSI subband are the PRB subset; or, if the PRBs included in the PRB subset are non-continuous, the frequency domain resources of each CSI subband are a set of continuous PRBs predefined in the PRB subset.

[0036] In an example, the CSI subbands in the downlink subbands included in the SBFD frequency domain resources in the subset of the CSI subbands are numbered consecutively.

[0037] In one example, the determination of the CSI reporting frequency band is also based on the SBFD time domain resources indicated by the configuration information.

[0038] Another aspect of the present disclosure provides a user equipment, including a transceiver and a controller coupled to the transceiver, wherein the controller is configured to execute the aforementioned method that can be executed by the user equipment.

[0039] Yet another aspect of the present disclosure provides a base station, including a transceiver and a controller coupled to the transceiver, wherein the controller is configured to execute the aforementioned method that can be executed by the base station.

[0040] 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

[0041] 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.

[0042] Figure 1 shows the overall structure of an example wireless communication network according to an embodiment of the present disclosure;

[0043] Figure 2A and Figure 2B 200 and 250 respectively illustrate a transmission path 200 and a reception path 250 in a wireless communication network according to an embodiment of the present disclosure;

[0044] Figure 3A and Figure 3B The structures of a user equipment (UE) and a base station in a wireless communication network according to an embodiment of the present disclosure are respectively shown;

[0045] Figure 4 A method 400 performed by a user equipment (UE) according to an embodiment of the present disclosure is shown;

[0046] Figure 5 5 shows a method 500 performed by a base station according to an embodiment of the present disclosure;

[0047] Figure 6 shows a structure 600 of a user equipment according to an embodiment of the present disclosure;

[0048] Figure 7 A structure 700 of a base station according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0049] 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.

[0050] 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.

[0051] 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.

[0052] The advantages and features of the present disclosure and the manner in which they are achieved will become clear by reference to the embodiments described in detail below in conjunction with the accompanying drawings. However, the present disclosure is not limited to the embodiments set forth below, but may be implemented in various different forms. The following embodiments are provided only to fully disclose the present disclosure and to 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 appended claims. Throughout the specification, the same or similar reference numerals represent the same or similar elements.

[0053] Figure 1 An example wireless communication network 100 is shown in accordance with an embodiment of the present disclosure. Figure 1 The embodiment of the wireless communication network 100 shown in FIGURE 1 is for illustration only. Other embodiments of the wireless communication network 100 may be used without departing from the scope of this disclosure.

[0054] 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.

[0055] 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, regardless of whether the UE is a mobile device (such as a mobile phone or smartphone) or a commonly considered fixed device (such as a desktop computer or vending machine).

[0056] gNB 102 provides wireless broadband access to a network 130 for a first plurality of user equipment (UEs) within a coverage area 120 of gNB 102. The first plurality of UEs includes UE 111, which may be located in a small business (SB), UE 112, which may be located in an enterprise (E), UE 113, which may be located in a WiFi hotspot (HS), UE 114, which may be located in a first residence (R), UE 115, which may be located in a second residence (R), and UE 116, which may be a mobile device (M) such as a cellular phone, a wireless laptop, a wireless PDA, etc. gNB 103 provides wireless broadband access to a network 130 for a second plurality of UEs within a coverage area 125 of gNB 103. The second plurality of UEs includes UE 115 and UE 116. In some embodiments, one or more of gNBs 101-103 may be capable of communicating with each other and with UEs 111-116 using 5G, Long Term Evolution (LTE), LTE-A, WiMAX, or other advanced wireless communication technologies.

[0057] 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.

[0058] 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 supports codebook design and structure for systems with 2D antenna arrays.

[0059] although Figure 1 An example of a wireless communication network 100 is shown, but can be used for Figure 1 Various changes may be made. For example, wireless communication network 100 can include any number of gNBs and any number of UEs in any suitable arrangement. Furthermore, 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 the UEs with direct wireless broadband access to network 130. Furthermore, 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.

[0060] Figure 2A and Figure 2B The transmit path 200 and receive path 250 in a wireless communication network according to an embodiment of the present disclosure are shown. In the following description, the transmit path 200 can be described as being implemented in a gNB (such as gNB 102), while 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 the embodiments of the present disclosure.

[0061] 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.

[0062] 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 (e.g., 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 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 (e.g., 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 upconverter 230 modulates (such as upconverts) 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 being converted to an RF frequency.

[0063] The RF signal transmitted from gNB 102 arrives at UE 116 after traversing the wireless channel. UE 116 performs operations that are the inverse of those performed at gNB 102. Downconverter 255 downconverts the received signal to baseband frequency, and cyclic prefix removal 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 parallel time-domain signals. 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.

[0064] Each of gNBs 101-103 may implement a transmit path similar to 200 for transmitting in the downlink to UEs 111-116 and may implement a receive path similar to 250 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 gNB 101-103 and may implement a receive path 250 for receiving in the downlink from gNB 101-103.

[0065] Figure 2A and Figure 2B Each of the components in can be implemented using hardware alone, or a combination of hardware and software / firmware. As a specific example, Figure 2A and Figure 2B At least some of the components in the embodiment may be implemented in software, while other components may be implemented in configurable hardware or a combination of software and configurable hardware. For example, FFT block 270 and IFFT block 215 may be implemented as configurable software algorithms, in which the value of the number of points N may be modified according to the implementation.

[0066] Furthermore, 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 the variable N can be any integer (such as 1, 2, 3, 4, etc.), while for FFT and IFFT functions, the value of the variable N can be any integer that is a power of 2 (such as 1, 2, 4, 8, 16, etc.).

[0067] although Figure 2A and Figure 2B Examples of wireless transmit and receive paths are shown, but 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.

[0068] Figure 3A An example UE 116 is shown according to an embodiment of the present disclosure. Figure 3A The embodiment of UE 116 shown in FIGURE 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 this disclosure is not limited to any particular implementation of the UE.

[0069] UE 116 includes an antenna 301, a radio frequency (RF) transceiver 302, transmit (TX) processing circuitry 303, a microphone 304, and receive (RX) processing circuitry 305. UE 116 also includes a speaker 306, a controller / processor 307, an input / output (I / O) interface 308, input device(s) 309, a display 310, and a memory 311. Memory 311 includes an operating system (OS) 312 and one or more applications 313.

[0070] RF transceiver 302 receives incoming RF signals from antenna 301, transmitted by a gNB of wireless network 100. RF transceiver 302 downconverts the incoming RF signals to generate an intermediate frequency (IF) or baseband signal. The IF or baseband signal is sent to RX processing circuitry 305, which generates a processed baseband signal by filtering, decoding, and / or digitizing the baseband or IF signal. RX processing circuitry 305 sends the processed baseband signal to speaker 306 (such as for voice data) or to controller / processor 307 (such as for web browsing data) for further processing.

[0071] The TX processing circuit 303 receives analog or digital voice data from the microphone 304, or other outgoing baseband data (such as network data, email, or interactive video game data) from the controller / processor 307. The TX processing circuit 303 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. The RF transceiver 302 receives the outgoing processed baseband or IF signal from the TX processing circuit 303 and up-converts the baseband or IF signal into an RF signal that is transmitted via the antenna 301.

[0072] The controller / processor 307 can include one or more processors or other processing devices and execute an OS 312 stored in a memory 311 to control the overall operation of the UE 116. For example, the controller / processor 307 can control the reception of forward channel signals and the transmission of reverse channel signals through the RF transceiver 302, the RX processing circuitry 305, and the TX processing circuitry 303 in accordance with well-known principles. In some embodiments, the controller / processor 307 includes at least one microprocessor or microcontroller.

[0073] The controller / processor 307 is also capable of executing other processes and programs resident in the memory 311, such as operations for channel quality measurement and reporting for a system with a 2D antenna array as described in embodiments of the present disclosure. The controller / processor 307 is capable of moving data into or out of the memory 311 as required by the executed processes. In some embodiments, the controller / processor 307 is configured to execute applications 313 based on the OS 312 or in response to signals received from the gNB or operator. The controller / processor 307 is also coupled to the I / O interface 308, which provides the UE 116 with the ability to connect to other devices such as laptops and handheld computers. The I / O interface 308 serves as the communication path between these accessories and the controller / processor 307.

[0074] Controller / processor 307 is also coupled to input device(s) 309 and display 310. An operator of UE 116 can input data into UE 116 using input device(s) 309. Display 310 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 311 is coupled to controller / processor 307. A portion of memory 311 can include random access memory (RAM), while another portion of memory 311 can include flash memory or other read-only memory (ROM).

[0075] although Figure 3A An example of a 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 according to specific needs. As a specific example, the controller / processor 307 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 smartphone, but the UE can be configured to operate as other types of mobile or stationary devices.

[0076] Figure 3BAn example gNB 102 is shown in accordance with an embodiment of the present disclosure. Figure 3B The embodiment of the gNB 102 shown in FIGURE 1 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 this disclosure is not limited to any particular implementation of a gNB. Note that gNB 101 and gNB 103 can include the same or similar structure as gNB 102.

[0077] like Figure 3B As shown in FIG, 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 comprise a 2D antenna array. gNB 102 also includes a controller / processor 378, memory 380, and a backhaul or network interface 382.

[0078] RF transceivers 372a-372n receive incoming RF signals from antennas 370a-370n, such as signals transmitted by a UE or other gNB. RF transceivers 372a-372n downconvert the incoming RF signals to generate IF or baseband signals. The IF or baseband signals are sent to RX processing circuitry 376, which filters, decodes, and / or digitizes the baseband or IF signals to generate processed baseband signals. RX processing circuitry 376 sends the processed baseband signals to controller / processor 378 for further processing.

[0079] The TX processing circuitry 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 circuitry 374 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate processed baseband or IF signals. The RF transceivers 372a-372n receive the outgoing processed baseband or IF signals from the TX processing circuitry 374 and up-convert the baseband or IF signals into RF signals that are transmitted via the antennas 370a-370n.

[0080] 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 via 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 functions. For example, the controller / processor 378 can perform blind interference sensing (BIS) procedures, such as those performed by a Blind Interference Sensing (BIS) algorithm, and decode received signals with interference signals subtracted. The controller / processor 378 can support any of a variety of other functions within the gNB 102. In some embodiments, the controller / processor 378 includes at least one microprocessor or microcontroller.

[0081] The controller / processor 378 is also capable of executing programs and other processes resident in the memory 380, such as a basic OS. The controller / processor 378 is also capable of supporting channel quality measurement and reporting for systems having 2D antenna arrays as described in embodiments of the present disclosure. In some embodiments, the controller / processor 378 supports communication between entities such as web RTC. The controller / processor 378 is capable of moving data into or out of the memory 380 as needed by the executing processes.

[0082] 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 over a network. The backhaul or network interface 382 can support communication over any suitable wired or wireless connection(s). For example, when the gNB 102 is implemented as part of a cellular communication system (such as one 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 over a wired or wireless local area network or with a larger network (such as the Internet) via a wired or wireless connection. The backhaul or network interface 382 includes any suitable structure that supports communication over a wired or wireless connection, such as an Ethernet or RF transceiver.

[0083] Memory 380 is coupled to controller / processor 378. A portion of memory 380 can include RAM, while another portion of 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 controller / processor 378 to perform the BIS process and decode the received signal after subtracting at least one interfering signal determined by the BIS algorithm.

[0084] As described in more detail below, the transmit and receive paths of gNB 102 (implemented using RF transceivers 372a-372n, TX processing circuitry 374, and / or RX processing circuitry 376) support aggregated communications with FDD cells and TDD cells.

[0085] 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, an access point can include multiple backhaul or network interfaces 382, and the controller / processor 378 can support routing functionality 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).

[0086] In this disclosure, the term "CSI reporting configuration" may be used interchangeably with the term "CSI reporting configuration information," "information for CSI reporting configuration," and "information for configuring CSI reporting." In this disclosure, the term "CSI" and the term "CSI parameter" or "CSI quantity" may be used interchangeably. In this disclosure, the term "CSI mapping order" and the term "CSI order" or "CSI information bit order" or "CSI domain order" may be used interchangeably. In this disclosure, the term "CSI transmission opportunity" may be used interchangeably with the term "CSI reference signal (CSI-RS) opportunity." In this disclosure, the term "CSI interference measurement (CSI-IM) opportunity" may be used interchangeably with the term "CSI-IM transmission opportunity." CSI may include at least one of the following:

[0087] CSI-RS Resource Indicator (CRI);

[0088] Rank Indicator (RI);

[0089] Precoding Matrix Indicator (PMI);

[0090] Channel quality indicator (CQI);

[0091] Layer indicator (LI);

[0092] Synchronization signal / physical broadcast channel (SSB) resource indicator (SS / PBCH Block Resource Indicator, SSBRI);

[0093] Layer 1-reference signal received power (L1-RSRP);

[0094] Layer 1 - Signal to Interference and Noise Ratio (L1-SINR);

[0095] ●Capability Index (CapabilityIndex).

[0096] In some cases, the base station can enhance the coverage of the communication system or reduce the latency through duplexing. Duplexing may include subband non-overlapping full duplex (SBFD). For example, subband non-overlapping full duplexing may be used in a time division duplex (TDD) band (e.g., in an unpaired spectrum). Subband non-overlapping duplexing may refer to dividing the bandwidth (e.g., carrier bandwidth) of a communication node (e.g., a base station) into more than one subband (e.g., the subbands do not overlap), and uplink and downlink communications may be performed simultaneously on different subbands.

[0097] In this disclosure, the term “SBFD configuration information” may be used interchangeably with “configuration information for SBFD”.

[0098] In this disclosure, the term "sub-band non-overlapping duplex" may be used interchangeably with "sub-band full duplex."

[0099] In the present disclosure, the term "frequency domain resources corresponding to the uplink subband" can be used interchangeably with the term "frequency domain position corresponding to the uplink subband" or "frequency domain resources of the uplink subband", or "frequency domain resources used for uplink" or "frequency domain position used for uplink" or "frequency domain resources used for uplink transmission" or "frequency domain position used for uplink transmission".

[0100] In the present disclosure, the term "frequency domain resources corresponding to the downlink subband" can be used interchangeably with the term "frequency domain position corresponding to the downlink subband" or "frequency domain resources of the downlink subband", or "frequency domain resources used for downlink" or "frequency domain position used for downlink" or "frequency domain resources for downlink reception" or "frequency domain position used for downlink reception".

[0101] In the present disclosure, the term "frequency domain resources corresponding to the guard band" can be used interchangeably with the term "frequency domain position corresponding to the guard band", or "frequency domain resources of the guard band", or "frequency domain resources between (the boundary of) the uplink subband and the downlink subband", or "frequency domain position between (the boundary of) the uplink subband and the downlink subband", or "frequency domain resources used to protect / isolate the uplink subband and the downlink subband".

[0102] In the present disclosure, the term “TDD (Time Division Duplex) configuration information” may be used interchangeably with the term “TDD uplink / downlink configuration information” or “information for configuring a time slot format”.

[0103] In the present disclosure, frequency domain resources may include / correspond to several frequency domain units. A frequency domain unit may be at least one of a subcarrier, a carrier, a frequency band, a frequency range (FR), a cell, and a serving cell. The present disclosure does not limit frequency domain units. Optionally, the frequency range may be frequency range 1 or frequency range 2 (e.g., frequency range 2-1 and / or frequency range 2-2).

[0104] In the present disclosure, the time domain unit may be at least one of a symbol, a sub-slot, a time slot, a sub-frame, a frame, a millisecond, and a second.

[0105] In this disclosure, "bandwidth part (BWP)" may be used interchangeably with "activated BWP" and "BWP on SBFD cell".

[0106] In the present disclosure, the term "SBFD cell" may be used interchangeably with the term "first cell", but the present disclosure does not limit the name of the "SBFD cell".

[0107] In the present disclosure, "determining measurement" may be: determining a measurement result, or obtaining a measurement result, or obtaining a measurement based on a reference signal, or obtaining a measurement based on a measurement resource, or obtaining a measurement for determining CSI.

[0108] In the present disclosure, "determining channel measurement" may be: determining the result of channel measurement, or obtaining the result of channel measurement, or obtaining channel measurement based on a reference signal, or obtaining channel measurement based on measurement resources, or obtaining channel measurement for determining CSI.

[0109] In the present disclosure, "determining interference measurement" may be: determining the result of interference measurement, or obtaining the result of interference measurement, or obtaining interference measurement based on a reference signal, or obtaining interference measurement based on a measurement resource, or obtaining interference measurement for determining CSI.

[0110] In the present disclosure, the term “uplink channel associated with CSI reporting” may be interchanged with the term “uplink channel associated with / corresponding to CSI reporting” or “uplink channel carrying CSI reporting”.

[0111] In this disclosure, the term "SBFD cell" may be used interchangeably with "SBFD serving cell."

[0112] In this disclosure, the term “CSI subband” may be used interchangeably with the term “CSI reporting subband” or “subband used for CSI reporting” or “subband for CSI reporting” or “CSI-associated subband”.

[0113] In this disclosure, the term "CSI subband within a BWP" can be used interchangeably with the term "CSI subband overlapping with the BWP," or "CSI subband overlapping with the BWP in the frequency domain," or "CSI subband partially / completely overlapping with the BWP in the frequency domain." In this disclosure, the term "CSI subband within a downlink subband associated with SBFD configuration information" can be used interchangeably with the term "CSI subband overlapping with a downlink subband associated with SBFD configuration information," or "CSI subband overlapping with a downlink subband associated with SBFD configuration information," or "CSI subband partially / completely overlapping with a downlink subband associated with SBFD configuration information in the frequency domain."

[0114] In this disclosure, the term “possible CSI subband size” may be used interchangeably with the term “configurable CSI subband size”.

[0115] In this disclosure, the term “configured CSI subband size” may be used interchangeably with the term “first CSI subband size”.

[0116] In this disclosure, the term “frequency domain resources of a CSI subband” may be used interchangeably with the terms “frequency domain resources associated with a CSI subband” and “frequency domain resources corresponding to a CSI subband”.

[0117] In this disclosure, the term "CSI" may be used interchangeably with the term "CSI value." In this disclosure, the term "SBFD time domain resource" may be used interchangeably with the term "SBFD time resource." In this disclosure, the term "CSI resource setting associated with a CSI reporting configuration" may be used interchangeably with the term "CSI resource setting corresponding to a CSI reporting configuration," or "resources associated with a CSI reporting configuration," or "measurement associated with a CSI reporting configuration," or "measurement resources associated with a CSI reporting configuration," or "resources for channel measurement and / or interference measurement associated with a CSI reporting configuration," or "resources for channel measurement associated with a CSI reporting configuration," or "resources associated with a CSI resource setting," or "reference signal resources associated with a CSI resource setting," or "resources in a resource set associated with a CSI resource setting," or "reference signal resources in a resource set associated with a CSI resource setting," or "reference signal resources in a resource set associated with a CSI reporting configuration." In the present disclosure, the term "cell discontinuous transmission (DTX) is activated" may be used interchangeably with the term "cell DTX is configured" or "cell DTX is configured and / or activated." In the present disclosure, "quasi co-location (QCL) parameter" may be used interchangeably with the term "transmission configuration indication (TCI) state" or "QCL assumption" or "QCL type D parameter." In the present disclosure, the term "L1-RSRP" may be used interchangeably with the term "L1-RSRP value." In the present disclosure, the term "discontinuous reception (DRX)" may be used interchangeably with "UE DRX" or "connected DRX (C-DRX)."

[0118] In this disclosure, the term "reference signal resource" may be used interchangeably with the term "reference signal," "reference signal opportunity," or "reference signal resource opportunity." Alternatively, the reference signal may be at least one of a CSI-RS, a CSI-IM, and an SSB. Alternatively, the reference signal may be at least one of a non-zero power (NZP) CSI-RS, a CSI-IM, and an SSB.

[0119] In this disclosure, the term “subset of a CSI subband” may be used interchangeably with the term “subset of a set of CSI subbands” or “subset of a set of subbands” or “subset in a set of subbands”.

[0120] In the present disclosure, the term "PRB subset includes / corresponds to non-contiguous PRBs" may be combined with the term "PRB subset includes / corresponds to all PRBs are non-contiguous" or "PRB subset includes / corresponds to all PRBs are not contiguous in the frequency domain" or "the numbers of all PRBs included / corresponds to the PRB subset are not contiguous" or "the numbers of all PRBs included / corresponds to the PRB subset are not contiguous" or "the number of all PRBs included / corresponds to the PRB subset is less than (or, not equal to) the difference between the corresponding CRB / PRB with the highest number and the corresponding CRB / PRB with the lowest number among (all) PRBs included / corresponds to the PRB subset."

[0121] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0122] The UE may receive / obtain / be configured with SBFD configuration information. Optionally, the UE may receive / obtain / be configured with SBFD configuration information through public signaling (e.g., public radio link control (RRC) signaling) or specific signaling (e.g., specific RRC signaling). Optionally, the SBFD configuration information may be configuration information related to SBFD. For example, the SBFD configuration information may be configuration information for SBFD. For example, the SBFD configuration information may be configuration information related to (base station) SBFD operation. For example, the SBFD configuration information may be configuration information for indicating time domain resources and / or frequency domain resources related to SBFD operation. Optionally, the UE receives the SBFD configuration information in an RRC connected state. Optionally, the UE may receive the SBFD configuration information in an RRC idle / inactive state.

[0123] ● Optionally, the cell corresponding to / associated with / located in / targeted by the SBFD configuration information (eg, serving cell) may be referred to as a SBFD cell.

[0124] ■ Optionally, the cell corresponding to / associated with the SBFD configuration information may be a cell that performs SBFD operations related to the SBFD configuration. Optionally, the cell corresponding to / associated with the SBFD configuration information may be a primary cell (e.g., PCell) or a special cell (e.g., SpCell). Optionally, the cell corresponding to / associated with the SBFD configuration information may be a secondary cell (e.g., SCell). Optionally, the cell corresponding to / associated with the SBFD configuration information may be a cell where / corresponds to the time domain resources and / or frequency domain resources associated with the SBFD configuration information. Optionally, the cell corresponding to / associated with the SBFD configuration information may be a cell in which the time domain resource configuration and / or frequency domain resource configuration associated with the SBFD configuration information is applied / used.

[0125] Optionally, the SBFD configuration information may indicate / correspond to / be associated with frequency domain resources and / or (corresponding to / associated with) time domain resources. Optionally, the time domain resources corresponding to / associated with the frequency domain resources refer to the time domain resources to which the frequency domain resource configuration configured by the SBFD configuration information is applicable / effective / effective. Optionally, the time domain resources corresponding to / associated with the frequency domain resources refer to the time domain resources on which the frequency domain resources configured by the SBFD configuration information are applied / used (by the UE).

[0126] ■ Optionally, the SBFD configuration information may indicate frequency domain resources (associated with / corresponding to the SBFD time domain resources). The frequency domain resources indicated / configured / associated by the SBFD configuration information may be referred to as SBFD frequency domain resources. Optionally, the SBFD configuration information may indicate at least one of the frequency domain resources corresponding to the uplink subband, the frequency domain resources corresponding to the downlink subband, and the frequency domain resources corresponding to the guard band. Optionally, the SBFD frequency domain resources may include at least one of the frequency domain resources corresponding to the uplink subband, the frequency domain resources corresponding to the downlink subband, and the frequency domain resources corresponding to the guard band. Optionally, the frequency domain resources corresponding to the uplink subband may include one or more consecutive PRBs, or a group of consecutive PRBs. Optionally, the frequency domain resources corresponding to the downlink subband may include one or more PRBs, or one or two groups of consecutive PRBs. Optionally, the frequency domain resources corresponding to the guard band may include one PRB, one group of consecutive PRBs, or two groups of consecutive PRBs. Optionally, the uplink subband may be a subband used for uplink (e.g., uplink transmission). Optionally, the uplink subband may be a frequency domain resource for uplink (e.g., uplink transmission). Optionally, the downlink subband may be a subband for downlink (e.g., downlink reception). Optionally, the downlink subband may be a frequency domain resource for downlink (e.g., downlink reception). Optionally, the UE may determine the frequency domain resources corresponding to the guard band based on the frequency domain resources corresponding to the uplink subband and / or the frequency domain resources corresponding to the downlink subband (and the carrier bandwidth of the SBFD cell). Optionally, the UE may determine the frequency domain resources corresponding to the downlink subband based on the frequency domain resources corresponding to the uplink subband and / or the frequency domain resources corresponding to the guard band (and the carrier bandwidth of the SBFD cell). Optionally, the frequency domain resources corresponding to the downlink subband may include one or more PRBs, or one or two groups of consecutive PRBs.

[0127] Optionally, the SBFD frequency domain resources are determined based on the SBFD configuration information and a reference subcarrier spacing parameter indicated by the TDD configuration information (for the cell) (e.g., the reference subcarrier spacing parameter referenceSubcarrierSpacing included in the TDD configuration information). For example, the SBFD frequency domain resources are determined based on the SBFD configuration information (indicating parameters related to frequency domain resources) and a reference subcarrier spacing parameter (e.g., referenceSubcarrierSpacing) included in the TDD configuration information (for the cell). This method can reuse the parameters indicated by the TDD configuration information to determine the SBFD frequency domain resources, thereby saving signaling overhead and improving the efficiency of the communication system.

[0128] Optionally, SBFD frequency-domain resources are determined based on a reference subcarrier spacing parameter indicated by the SBFD configuration information (e.g., reference subcarrier spacing parameter referenceSubcarrierSpacing included in the SBFD configuration information). For example, SBFD time-domain resources are determined based on a reference subcarrier spacing parameter (e.g., referenceSubcarrierSpacing) included in the SBFD configuration information. This method utilizes SBFD configuration information to determine SBFD frequency-domain resources, facilitating flexible SBFD operations by the base station and improving the efficiency of the communication system.

[0129] Optionally, on SBFD time-domain resources, the portion of the uplink BWP within the frequency-domain resources corresponding to the uplink subband associated with the SBFD frequency-domain resources may be / is permitted to be used for uplink transmission. Optionally, on SBFD time-domain resources, the portion of the uplink BWP not within the frequency-domain resources corresponding to the uplink subband associated with the SBFD frequency-domain resources may not be / is not permitted to be used for uplink transmission. This approach clarifies scheduling restrictions based on SBFD configurations, facilitates flexible scheduling by base stations, and improves communication system efficiency.

[0130] Optionally, on SBFD time-domain resources, the portion of the downlink BWP that is within the frequency-domain resources corresponding to the downlink subband associated with the SBFD frequency-domain resources may be / is permitted to be used for downlink reception. Optionally, on SBFD time-domain resources, the portion of the downlink BWP that is not within the frequency-domain resources corresponding to the downlink subband associated with the SBFD frequency-domain resources may not be / is not permitted to be used for downlink reception. This approach clarifies scheduling restrictions based on SBFD configurations, facilitates flexible scheduling by the base station, and improves communication system efficiency.

[0131] ■ Optionally, the SBFD configuration information may indicate / configure / associate time domain resources. The time domain resources indicated / configured / associated by the SBFD configuration information may be referred to as SBFD time domain resources. Time domain resources other than SBFD time domain resources (or a portion of time domain resources other than SBFD time domain resources) may be referred to as non-SBFD time domain resources; or, time domain resources that are not SBFD time domain resources may be referred to as non-SBFD time domain resources; or, time domain resources that are outside SBFD time domain resources and within downlink time slots / downlink symbols and / or flexible time slots / flexible symbols indicated / configured by the base station may be referred to as non-SBFD time domain resources; or, time domain resources that are outside SBFD time domain resources and within uplink time slots / uplink symbols indicated / configured by the base station may be referred to as non-SBFD time domain resources. SBFD time domain resources may include several time domain units. Optionally, SBFD time domain resources are not on the uplink time slots and / or uplink symbols indicated by the public information. Optionally, the SBFD time domain resources are on the downlink time slots and / or downlink symbols indicated by the base station, and / or the SBFD time domain resources are on the flexible time slots and / or flexible symbols indicated / configured by the base station. Optionally, the non-SBFD time domain resources are not on the uplink time slots or uplink symbols indicated by the public information. Optionally, the non-SBFD time domain resources are on the downlink time slots and / or downlink symbols indicated by the base station, and / or the non-SBFD time domain resources are on the flexible time slots and / or flexible symbols indicated / configured by the base station. Optionally, the UE can obtain at least one of the uplink symbols, uplink time slots, downlink symbols, downlink time slots, flexible symbols, and flexible time slots indicated by the base station through TDD configuration information. The TDD configuration information includes: TDD configuration information for the cell (e.g., tdd-UL-DL-ConfigurationCommon) and / or TDD configuration information for the UE (tdd-UL-DL-ConfigurationDedicated).

[0132] Optionally, the SBFD time domain resources are determined based on the SBFD configuration information and a reference subcarrier spacing parameter indicated by the TDD configuration information (for the cell) (e.g., the reference subcarrier spacing parameter referenceSubcarrierSpacing included in the TDD configuration information). For example, the SBFD time domain resources are determined based on the SBFD configuration information (indicating parameters related to time domain resources) and a reference subcarrier spacing parameter (e.g., referenceSubcarrierSpacing) included in the TDD configuration information (for the cell). This method can reuse the parameters indicated by the TDD configuration information to determine the SBFD time domain resources, thereby saving signaling overhead and improving the efficiency of the communication system.

[0133] Optionally, the SBFD time-domain resources are determined based on a reference subcarrier spacing parameter indicated by the SBFD configuration information (e.g., a reference subcarrier spacing parameter referenceSubcarrierSpacing included in the SBFD configuration information). For example, the SBFD time-domain resources are determined based on a reference subcarrier spacing parameter (e.g., referenceSubcarrierSpacing) included in the SBFD configuration information. This method can utilize the SBFD configuration information to determine the SBFD time-domain resources, thereby facilitating flexible SBFD operations by the base station and improving the efficiency of the communication system.

[0134] Optionally, on the BWP, if a symbol / time slot partially overlaps with an SBFD time domain resource, then that symbol / time slot cannot / is not permitted to be used for transmission / reception. Alternatively, on the BWP, if a symbol / time slot completely overlaps with an SBFD time domain resource, then that symbol / time slot can / is permitted to be used for transmission / reception. This approach clarifies scheduling restrictions based on the SBFD configuration, facilitating flexible scheduling by the base station and improving communication system efficiency.

[0135] Figure 4 A method 400 performed by a user equipment (UE) according to an embodiment of the present disclosure is shown. Specifically, the method 400 includes: at 401, the UE receives sub-band non-overlapping full-duplex (SBFD) configuration information from a base station, wherein the SBFD configuration information indicates SBFD frequency domain resources; at 402, the UE receives a channel state information (CSI) reporting configuration from the base station; and at 403, the UE determines, based on the SBFD frequency domain resources, a CSI reporting frequency band for reporting CSI associated with the CSI reporting configuration.

[0136] The UE may receive / be configured with a CSI reporting configuration (e.g., CSI-ReportConfig). Optionally, the CSI reporting configuration may be associated with one or more CSI resource settings (e.g., CSI-ResourceConfig). Optionally, the CSI resource setting may include a CSI resource setting for channel measurement and / or a CSI resource setting for interference measurement. Optionally, the CSI resource setting may correspond to / include / be associated with one or more resource sets. Optionally, the CSI resource setting may correspond to / include at least one of a CSI-RS resource, a CSI-IM resource, and an SSB resource. Optionally, a resource set may include several resources. Optionally, a resource set may include / correspond to at least one of a CSI-RS resource, a CSI-IM resource, and an SSB resource. For example, the UE may determine and / or report the CSI associated with / corresponding to the CSI reporting configuration based on measurements of resources associated with the CSI resource setting associated with the CSI reporting configuration. For example, the UE may determine and / or report the CSI associated with / corresponding to the CSI reporting configuration based on measurement of resources in a resource set associated with the CSI resource setting associated with the CSI reporting configuration.

[0137] In some cases, optionally, a carrier (eg, a carrier associated with a SBFD cell) may correspond to / include one or more CSI subbands. Optionally, a CSI subband may be defined as / may correspond to / may be associated with N SB PRBs (e.g., N SB Here, the frequency domain unit of the CSI subband for CSI reporting is PRB, and the frequency domain unit can also be other units, which is not limited in this document. Optionally, the frequency domain position associated with the CSI subband (for example, N consecutive PRBs associated with the CSI subband) SB The frequency domain position / frequency domain starting position of each PRB is determined based on / with reference to the common resource block (CRB) grid, for example, based on / with reference to CRB number 0. For example, the CSI subband is associated with N consecutive SB The CRB number corresponding to the starting PRB in the PRBs may be N SB An integer multiple (e.g., a non-negative integer multiple, or a positive integer multiple) of SB Corresponding to the size of the configured CSI subband. Optionally, the size of the configured CSI subband (e.g., N SB) can be determined by the following method. Optionally, the UE can be configured with one of one or more possible CSI subband sizes via higher layer signaling. The following description takes two possible CSI subband sizes as an example. For example, for CSI reporting, the UE can be configured via higher layer signaling with one out of two possible CSI subband sizes. For example, the CSI reporting configuration may include / be configured with a subband size parameter (e.g., subbandsize), wherein the subband size parameter may indicate one of two configurable CSI subband sizes. For example, the subband size parameter may indicate one of two values corresponding to the two configurable CSI subband sizes. Optionally, this indicated value corresponds to N SB Alternatively, the value of this indication corresponds to the size of the configured CSI subband. Optionally, the subband size parameter indicates the size of the configured CSI subband. Optionally, the value indicated by the subband size parameter corresponds to N SB . Optionally, if the CSI reporting configuration does not include a CSI reporting band parameter (e.g., csi-ReportingBand), the UE ignores the subband size parameter (or, the UE ignores the domain corresponding to the subband size parameter). Optionally, the configurable CSI subband size (configurableCSI subband size) can be determined based on the BWP and / or SBFD frequency domain resources. Optionally, the BWP is a downlink BWP. Optionally, the BWP is a BWP associated with the CSI reporting configuration. Optionally, the BWP is a BWP corresponding to the CSI resource setting associated with the CSI reporting configuration. For example, the resources associated with the CSI reporting configuration are measured in the BWP.

[0138] ● Method 1: Optionally, the configurable CSI subband size can be determined based on the number of PRBs included in the BWP. For example, when the number of PRBs included in the BWP is between 24 and 72, the corresponding configurable CSI subband size is 4 PRBs and 8 PRBs. For example, when the number of PRBs included in the BWP is between 73 and 144, the corresponding configurable CSI subband size is 8 PRBs and 16 PRBs. For example, when the number of PRBs included in the BWP is between 145 and 275, the corresponding configurable CSI subband size is 16 PRBs and 32 PRBs.

[0139] ●Method 2: Optionally, the configurable CSI subband size can be determined based on the BWP and SBFD frequency domain resources. For example, the configurable CSI subband size can be determined based on the frequency domain resources included in the BWP (e.g., the number of PRBs included) and the frequency domain resources included in the downlink subband associated with the SBFD frequency domain resources (e.g., the number of PRBs included). For example, the configurable CSI subband size can be determined based on the intersection (e.g., the overlapping portion) of the downlink subbands associated with the BWP and SBFD frequency domain resources. For example, the configurable CSI subband size can be determined based on the number of PRBs within the BWP and within the downlink subband associated with the SBFD frequency domain resources. Optionally, the PRB in the downlink subband means that the PRB is completely / partially in the downlink subband. Optionally, when the number of PRBs determined based on the BWP and SBFD frequency domain resources is between 24 and 72, the corresponding configurable CSI subband size is 4 PRBs and 8 PRBs. Optionally, when the number of PRBs based on BWP and SBFD frequency domain resources is between 73 and 144, the corresponding configurable CSI subband sizes are 8 PRBs and 16 PRBs. Optionally, when the number of PRBs based on BWP and SBFD frequency domain resources is between 145 and 275, the corresponding configurable CSI subband sizes are 16 PRBs and 32 PRBs. Method 2 can determine the granularity of CSI subbands for SBFD frequency domain resources, improving the flexibility of the communication system.

[0140] Optionally, the conditions for executing method 2 may include at least one of the following: the UE is configured with SBFD configuration information; the CSI reporting configuration is configured with parameters for enabling method 2; the first time domain resource is an SBFD time domain resource; and the first condition. For a detailed explanation of "first time domain resource" and "first condition," see below.

[0141] Optionally, the UE receives configuration information (e.g., CSI reporting band parameter csi-ReportingBand). Optionally, the UE may determine / acquire one or more indicated CSI subbands through the configuration information. Optionally, the UE may determine / acquire one or more indicated CSI subbands (in a group of CSI subbands) from a group of CSI subbands (e.g., L CSI subbands) through the configuration information. The number of CSI subbands included in the one or more CSI subbands is M. Optionally, the one or more CSI subbands (e.g., M CSI subbands) may be referred to as indicated one or more CSI subbands. Optionally, 1≤M≤L. Optionally, one or more CSI subbands in the one or more CSI subbands (e.g., M CSI subbands) may be continuous or non-contiguous. Optionally, the UE may determine the corresponding CSI based on the indicated one or more CSI subbands. Methods related to CSI subbands are further described below.

[0142] Optionally, the CSI reporting configuration may include / be configured to indicate a parameter of a CSI subband. Optionally, the parameter indicating the CSI subband is exemplified by a CSI reporting band parameter (eg, csi-ReportingBand). The following describes a method for performing configuration restrictions.

[0143] ● Method 1: Optionally, when the number of PRBs included in the BWP is less than (or equal to) a predefined value of PRBs, the CSI reporting configuration does not include a CSI reporting band parameter. Optionally, when the number of PRBs included in the BWP is less than (or equal to) a predefined value of PRBs, the CSI reporting configuration has a wideband granularity (and, if applicable, the CSI reporting configuration corresponds to / is associated with a single-panel codebook type). Optionally, when the number of PRBs included in the BWP is greater than (or equal to) a predefined value of PRBs, the CSI reporting configuration includes a CSI reporting band parameter. Optionally, the predefined value may be a positive integer. For example, the predefined value may be one of 4, 8, 12, 16, 24, 36, and 48.

[0144] ●Method 2: Optionally, when the (contiguous) PRBs included in the BWP within the downlink subband associated with the SBFD configuration information are less than (or equal to) a predefined value of PRBs, the CSI reporting configuration does not include the CSI reporting band parameter. Optionally, when the (contiguous) PRBs included in the BWP within the downlink subband associated with the SBFD configuration information are less than (or equal to) a predefined value of PRBs, the CSI reporting configuration has wideband granularity (and, if applicable, the CSI reporting configuration corresponds to / is associated with type - single-panel codebook). Optionally, when the (contiguous) PRBs included in the BWP within the downlink subband associated with the SBFD configuration information are greater than (or equal to) a predefined value of PRBs, the CSI reporting configuration includes the CSI reporting band parameter. Optionally, the predefined value may be a positive integer. For example, the predefined value may be one of 4, 8, 12, 16, 24, 36, and 48. This method allows the bandwidth available for downlink reception in the BWP (i.e., the bandwidth of the BWP within the downlink subband associated with the SBFD configuration information) to be indicated as a subband only when it is greater than or equal to a specific value. This avoids the situation where the measurement bandwidth is too small due to subband division in the case of small bandwidth, which in turn leads to inaccurate CSI, thereby improving the reliability of the communication system.

[0145] Optionally, the conditions for executing method 2 for configuring restrictions may include at least one of the following: the UE is configured with SBFD configuration information; the CSI reporting configuration is configured with parameters for enabling method 2 for configuring restrictions; the first time domain resource is an SBFD time domain resource; and the first condition. For a detailed explanation of "first time domain resource" and "first condition," see below.

[0146] Optionally, the CSI reporting configuration may include / be configured to indicate a parameter for a CSI subband. Optionally, the parameter for indicating a CSI subband is exemplified by a CSI reporting band parameter (e.g., csi-ReportingBand). The following describes a related CSI subband indication method.

[0147] ●Method 1: Optionally, the CSI reporting configuration may include / be configured with a reporting frequency domain configuration parameter (e.g., reportFreqConfiguration). Optionally, the reporting frequency domain configuration parameter indicates / includes a CSI reporting band parameter (e.g., csi-ReportingBand). Optionally, the CSI reporting band parameter indicates / corresponds to one or more CSI subbands (e.g., M subbands) within the BWP. Optionally, the CSI reporting band parameter indicates / corresponds to one or more CSI subbands within the BWP that are continuous or non-contiguous. Optionally, the reported CSI corresponding to the CSI reporting configuration is for a CSI subband within the downlink subband associated with the SBFD frequency domain resources among the one or more CSI subbands (e.g., M CSI subbands). Optionally, the CSI reporting band corresponding to / associated with the CSI reporting configuration corresponds to / refers to a CSI subband within the downlink subband associated with the SBFD frequency domain resources among the one or more CSI subbands (e.g., M CSI subbands). Optionally, the M CSI subbands include M' CSI subbands within the downlink subband associated with the SBFD frequency domain resources. Optionally, M' ≥ 1. Optionally, the CSI reporting band parameter may include a bitmap. Optionally, the UE may determine the number of CSI subbands (e.g., L) based on the length of the bitmap. For example, the UE may determine the number of CSI subbands (e.g., L) within the BWP / corresponding to the bitmap based on the length of the bitmap. Optionally, the UE determines M CSI subbands from the L CSI subbands based on the bitmap. Optionally, the CSI reporting band parameter may include a bitmap, wherein each bit in the bitmap represents / indicates a CSI subband, e.g., a CSI subband within the BWP. For example, a bit value of "1" indicates that the CSI subband is indicated; a bit value of "0" indicates that the CSI subband is not indicated. Optionally, the first bit corresponds to the CSI subband with the lowest frequency domain position within the BWP (e.g., the lowest CRB number, or the lowest starting / ending CRB number). Optionally, the z'th bit corresponds to the CSI subband with the z'th lowest frequency domain position within the BWP (e.g., the z'th lowest CRB number, or the z'th lowest starting / ending CRB number), where z' ≥ 1. Optionally, the rightmost bit in the bitmap (or the LSB of the bitmap, or the MSB of the bitmap) represents the lowest / highest CSI subband within the BWP. Optionally, the lowest / highest CSI subband may be the CSI subband with the lowest / highest frequency domain position. Optionally, the lowest / highest CSI subband may be the CSI subband with the corresponding lowest / highest CRB number. Optionally, the leftmost bit in the bitmap (or the LSB of the bitmap, or the MSB of the bitmap) represents the frequency domain position within the BWP, or the CSI subband with the corresponding lowest / highest CRB number.

[0148] ■Optionally, the following describes a method for determining a CSI reporting frequency band related to the CSI subband indication method, for example, a method for determining a CSI reporting frequency band based on a subset of indicated CSI subbands. Optionally, the CSI reporting configuration may include / be configured with a reporting frequency domain configuration parameter (e.g., reportFreqConfiguration). Optionally, the reporting frequency domain configuration parameter may indicate a frequency domain granularity of a CSI report corresponding to / associated with the CSI reporting configuration. Optionally, the CSI reporting configuration may define: a CSI reporting band as the CSI subband(s)that is from the indicated one or more CSI subband(s)andwithin DL subband associated with the SBFD frequency domain resource. Optionally, the number of CSI subbands corresponding to the CSI reporting frequency band is denoted as M'. For example, the CSI subband indicated by the CSI reporting band parameter is {CSI subband #1, CSI subband #2, CSI subband #4}, where only CSI subband #1 and CSI subband #2 are in the downlink subband associated with the SBFD frequency domain resources. Then the CSI reporting band is CSI subband #1 and CSI subband #2.

[0149] Optionally, the configuration restriction associated with the CSI reporting configuration may be at least one of the following:

[0150] Method 1: Optionally, all indicated one or more CSI subbands (e.g., M CSI subbands) are in a downlink subband. For example, the UE expects all indicated one or more CSI subbands (e.g., M CSI subbands) to be in a downlink subband. For example, the UE does not expect at least one of the indicated CSI subbands to not be in a downlink subband.

[0151] Method 2: Optionally, the UE is not configured (or does not expect to be configured) / does not include / does not indicate / does not correspond to CSI reporting band parameters including a CSI subband, wherein in the CSI subband, the reference signal (e.g., CSI-RS or CSI-IM) resources associated with the CSI reporting configuration have a frequency density (frequency density)

[0152] Less than the frequency density of the reference signal resource configured. Optionally, the frequency density of the reference signal resource refers to the frequency density of each CSI-RS port per PRB. Optionally, the frequency density is determined based on the SBFD frequency domain resource. Optionally, the frequency density is determined based on the downlink subband and / or uplink subband associated with the SBFD frequency domain resource.

[0153] Optionally, the frequency density is determined based on frequency domain resources (e.g., PRBs) within the downlink subband associated with the SBFD frequency domain resources in the CSI subband. Optionally, the frequency density is determined based on frequency domain resources (e.g., PRBs) outside the uplink subband (and guard band) associated with the SBFD frequency domain resources in the CSI subband.

[0154] Method 3: Optionally, if the reference signal (e.g., CSI-RS or CSI-IM)

[0155] The resource is associated with the CSI reporting configuration, and the UE is not configured (or is not expected to be configured) / does not include / does not indicate / does not correspond to the CSI reporting band parameters including the CSI subband, wherein not all PRBs in the CSI subband have the REs of the reference signal (a subband where not all PRBs in the subband have the CSI-IM REs present). Optionally, in the SBFD time-domain resources, the UE determines / assumes that the reference signal only appears in the downlink subband associated with the SBFD frequency-domain resources within the BWP. For example, in the SBFD time-domain resources, the UE operates based on the assumption that the reference signal only appears in the downlink subband associated with the SBFD frequency-domain resources within the BWP. Optionally, the UE determines / assumes that the reference signal does not appear outside the downlink subband associated with the SBFD frequency-domain resources in the BWP. Optionally, the UE determines / assumes that the reference signal only appears in the downlink subband associated with the SBFD frequency-domain resources in the BWP.

[0156] The above configuration restrictions can prevent the base station from indicating that one or more CSI subbands are not within the downlink subband of SBFD operation, so that all CSI subbands can be measured, improving the reliability of the communication system.

[0157] ●Method 2: Optionally, the CSI reporting configuration may include / be configured with a reporting frequency domain configuration parameter (e.g., reportFreqConfiguration). Optionally, the reporting frequency domain configuration parameter indicates / includes a CSI reporting band parameter (e.g., csi-ReportingBand). Optionally, the CSI reporting band parameter indicates / corresponds to one or more CSI subbands (e.g., M CSI subbands) within the BWP and within the downlink subband associated with the SBFD. Optionally, the CSI reporting band parameter indicates / corresponds to one or more consecutive or non-consecutive CSI subbands within the BWP and within the downlink subband associated with the SBFD. Optionally, the CSI reporting band parameter indicates / corresponds to one or more CSI subbands within the BWP and outside the uplink subband (and guard band) associated with the SBFD. Optionally, the CSI reporting band parameter indicates / corresponds to one or more consecutive or non-consecutive CSI subbands within the BWP and outside the uplink subband (and guard band) associated with the SBFD. Optionally, the reported CSI corresponding to the CSI reporting configuration targets the one or more CSI subbands (e.g., M subbands). Optionally, the CSI reporting frequency bands corresponding to / associated with the CSI reporting configuration correspond to / refer to the one or more CSI subbands (e.g., M subbands). Optionally, the CSI reporting frequency band parameter may include a bitmap, wherein each bit in the bitmap represents / indicates a CSI subband, for example, a CSI subband within a BWP and within a downlink subband associated with SBFD. For example, a bit value of "1" indicates that the CSI subband is indicated; a bit value of "0" indicates that the CSI subband is not indicated. Optionally, the UE may determine the number of CSI subbands (L) based on the length of the bitmap. Optionally, the UE determines a subset from the L CSI subbands based on the bitmap. Optionally, the first bit corresponds to the CSI subband with the lowest frequency domain position (e.g., lowest CRB number, or lowest starting / ending CRB number) within the BWP and within the downlink subband associated with SBFD. Optionally, the zth bit corresponds to the CSI subband with the zth lowest frequency domain position (e.g., the zth lowest CRB number, or the zth lowest starting / ending CRB number) within the BWP and within the downlink subband associated with the SBFD, where z ≥ 1. Optionally, the rightmost bit in the bitmap (or the LSB of the bitmap, or the MSB of the bitmap) represents the lowest / highest CSI subband within the BWP and within the downlink subband associated with the SBFD. Optionally, the lowest / highest CSI subband may be the CSI subband with the lowest / highest frequency domain position. Optionally, the lowest / highest CSI subband may be the CSI subband with the lowest / highest corresponding CRB number.Optionally, the leftmost bit in the bitmap (or the LSB or MSB of the bitmap) indicates the lowest / highest CSI subband at the frequency domain location (or the corresponding CRB number) within the BWP and within the downlink subband associated with the SBFD. CSI subband indication method 2 can determine one or more indicated CSI subbands based on the BWP and SBFD frequency domain resources, so that all indicated CSI subbands can be used for downlink reception, thereby improving the efficiency of the communication system.

[0158] ■ Optionally, the conditions for implementing CSI subband indication method 2 may include at least one of the following: the UE is configured with SBFD configuration information; the CSI reporting configuration is configured with parameters for enabling CSI subband indication method 2; the first time domain resource is an SBFD time domain resource; and the first condition. For a detailed explanation of "first time domain resource" and "first condition," see below.

[0159] ■Optionally, the following describes a method for determining the CSI reporting frequency band related to the second CSI subband indication method, for example, a method for determining the CSI reporting frequency band based on one or more indicated CSI subbands. Optionally, the CSI reporting configuration may include / be configured with a reporting frequency domain configuration parameter (for example, reportFreqConfiguration). Optionally, the reporting frequency domain configuration parameter may indicate the frequency domain granularity of the CSI report corresponding to / associated with the CSI reporting configuration. Optionally, the CSI reporting configuration may define / correspond to: the CSI reporting band is a subset of the CSI subbands (a subset of CSIsubbands). Optionally, the subset of the CSI subband is one or more CSI subbands indicated by the CSI reporting frequency band parameter.

[0160] Optionally, a method for determining a CSI reporting frequency band is described below, for example, a method for determining a CSI reporting frequency band based on a subset of an indicated CSI subband. Optionally, the CSI reporting configuration may include / be configured with a reporting frequency domain configuration parameter (e.g., reportFreqConfiguration). Optionally, the reporting frequency domain configuration parameter may indicate a frequency domain granularity of a CSI report corresponding to / associated with the CSI reporting configuration. Optionally, the CSI reporting configuration may define / correspond to: a CSI reporting frequency band (CSIreporting band) as a subset of CSI subbands (a subset of CSI subbands). Optionally, the subset of CSI subbands is indicated by a CSI reporting frequency band parameter. Optionally, the subset of CSI subbands is a CSI subband in a downlink subband associated with the SBFD frequency domain configuration information in the CSI subband indicated by the CSI reporting frequency band parameter. Optionally, the number of CSI subbands corresponding to / included by the CSI reporting frequency band may be denoted as M'.

[0161] The following describes a method for determining the frequency domain resources corresponding to the CSI subband (corresponding to or indicated by the CSI reporting frequency band). Optionally, the frequency domain resources corresponding to the CSI subband can be: the frequency domain resources of the CSI subband, or the frequency domain resources actually occupied by the CSI subband, or the frequency domain resources corresponding to the CSI subband for CSI reporting. Optionally, the frequency domain resources corresponding to the CSI subband are based on the configured CSI subband size (N SB ), BWP, and SBFD frequency domain resources associated with the downlink subband. Optionally, the UE determines and / or reports CSI based on the CSI subband. Optionally, the UE determines and / or reports CSI based on the frequency domain resources corresponding to the CSI subband. Optionally, the UE determines and / or reports CSI based on M' CSI subbands. Optionally, the UE determines and / or reports CSI based on the frequency domain resources corresponding to the M' CSI subbands. Optionally, the UE may determine the frequency domain resources corresponding to the CSI subband based on at least one of the following methods:

[0162] ● Method 1: Optionally, the frequency domain resources corresponding to the CSI subband are determined based on the PRB subset associated with the CSI subband. Optionally, the PRB subset can be the N associated with the CSI subband. SB A portion of the PRBs in the (continuous) PRBs. Optionally, the PRB subset includes / corresponds to N SB The PRB subset is determined by the PRBs in the BWP and in the downlink subband associated with the SBFD frequency domain resource. SB The frequency domain resources corresponding to the CSI subband are determined in the following manner: SB The number of the secondary CRB associated with the PRB is N SB,start,m Starting with N SB PRBs, where m=0, 1, 2, ..., M'-1; the frequency domain resources (or PRB subsets) corresponding to subband #m are from CRB number N SB,start,m to N SB,start,m +N SB The PRBs with a value of –1 are within the BWP and within the downlink subband associated with the SBFD frequency domain resources.

[0163] ■Optionally, if the PRBs included in / corresponding to the PRB subset are non-contiguous, for example, the PRB subset includes / corresponds to two or more groups of consecutive PRBs, then the frequency domain resources corresponding to the CSI subband are based on / are a group of consecutive PRBs predefined in the PRB subset. For example, the frequency domain resources corresponding to the CSI subband are based on / are a group of consecutive PRBs with the lowest / highest frequency domain positions in the PRB subset. For example, the frequency domain resources corresponding to the CSI subband are based on / are a group of consecutive PRBs with the lowest / highest numbers associated with the start / end PRBs in the PRB subset (for example, PRB numbers, or numbers of CRBs corresponding to the PRBs). For example, the frequency domain resources corresponding to the CSI subband are based on / are a group of consecutive PRBs with the largest / least number of PRBs in the PRB subset. Since the subband may be cut into non-contiguous PRBs by the BWP and the downlink subband, and processing non-contiguous PRBs in the subband increases the complexity of UE processing, the method of determining the frequency domain resources corresponding to the CSI subband based on the PRB subset here can enable the UE to measure only the continuous PRBs in the subband, reducing the UE processing complexity and improving the performance of the communication system.

[0164] ■ Optionally, the PRBs included in / corresponding to the PRB subset are contiguous. For example, the UE expects the PRBs included in / corresponding to the PRB subset to be contiguous. Because a subband may be split into non-contiguous PRBs by the BWP and downlink subband, and processing non-contiguous PRBs in a subband increases UE processing complexity, configuring restrictions on the PRB subset can avoid the occurrence of non-contiguous PRBs in the PRB subset, reduce UE processing complexity, and improve communication system performance.

[0165] ■ Optionally, the conditions for executing method 1 for determining the frequency domain resources corresponding to the CSI subband may include at least one of the following: the UE is configured with SBFD configuration information; the CSI reporting configuration is configured with parameters for enabling method 1 for determining the frequency domain resources corresponding to the CSI subband; the first time domain resource is an SBFD time domain resource; and the first condition. For a detailed explanation of "first time domain resource" and "first condition," please refer to the following.

[0166] ■ Method 1 for determining frequency domain resources corresponding to CSI subbands clarifies how to determine frequency domain resources corresponding to subbands used for CSI reporting based on SBFD frequency domain resources, so that the UE can determine and / or report CSI in the SBFD downlink frequency band, improving the flexibility of the communication system.

[0167] Optionally, the size of the CSI subband (eg, the actual size of the CSI subband) is based on the configured CSI subband size (N SB), BWP, and SBFD frequency domain resources (associated downlink subbands). The UE may determine the size of the subband corresponding to the CSI subband based on at least one of the following methods:

[0168] Method 1: Optionally, the size of the CSI subband may be the size of the frequency domain resource corresponding to the CSI subband. For example, the size of the CSI subband may be the number of (contiguous) PRBs in the frequency domain resource corresponding to the CSI subband. For example, the size of the CSI subband may be the bandwidth of the frequency domain resource corresponding to the CSI subband. For the method for determining the frequency domain resource / corresponding bandwidth corresponding to the CSI subband, see above.

[0169] ■ Optionally, conditions for executing method 1 for determining the size of the CSI subband may include at least one of the following: the UE is configured with SBFD configuration information; the downlink subband associated with the SBFD configuration information does not completely overlap with the BWP, or the downlink subband associated with the SBFD configuration information is not completely within the BWP, or the uplink subband (and guard band) associated with the SBFD configuration information is within the BWP; the CSI reporting configuration is configured with parameters for enabling method 1 for determining the size of the CSI subband; the first time domain resource is an SBFD time domain resource; and the first condition. For a detailed explanation of "first time domain resource" and "first condition," please refer to the following.

[0170] ● Method 2: Optionally, the size of the CSI subband is based on the N associated with the subband SB The size of the first CSI subband in a BWP can be N. SB –(N BWP,start modN SB ), where N BWP,start Corresponding to / indicates the CRB number corresponding to the start of BWP, and mod indicates the remainder operation. For example, in (N BWP,start +N BWP,size )mod N SB When not equal to 0, the size of the last CSI subband in the BWP can be: (N BWP,start +N BWP,size )mod N SB ; or, in (N BWP,start +N BWP,size )mod N SB When equal to 0, the size of the last CSI subband in the BWP can be: N SB Here, N BWP,start Corresponds to / indicates the number of the CRB corresponding to the starting PRB of the BWP. Here, N BWP,sizeCorresponding to / indicating the bandwidth of a BWP or the size of a BWP, or the number of PRBs included in a BWP. For example, the size of the CSI subbands other than the first and last CSI subbands in a BWP can be: N SB .

[0171] ■ Optionally, conditions for executing method 2 for determining the size of the CSI subband may include at least one of the following: the UE is configured with SBFD configuration information; the downlink subband associated with the SBFD configuration information completely overlaps with the BWP, or the downlink subband associated with the SBFD configuration information is completely within the BWP, or the uplink subband (and guard band) associated with the SBFD configuration information is not within the BWP; the CSI reporting configuration is configured with parameters for enabling method 2 for determining the size of the CSI subband; the first time domain resource is an SBFD time domain resource; and the first condition is met. For a detailed explanation of "first time domain resource" and "first condition," please refer to the following.

[0172] The following describes a method for numbering CSI subbands and / or a method for reporting / determining CSI in some cases, for example, when at least one CSI subband in a subset of indicated CSI subbands (e.g., included in one or more CSI subbands indicated by csi-ReportingBand) is not within the downlink subband associated with the SBFD configuration information.

[0173] ● Optionally, for CSI reporting, e.g., CSI reporting corresponding to / associated with a CSI reporting configuration, CSI subbands in a CSI reporting frequency band may be numbered or renumbered. Optionally, for CSI reporting, CSI subbands in a downlink subband associated with the SBFD configuration information among one or more indicated CSI subbands (e.g., M CSI subbands) may be numbered or renumbered. Optionally, the CSI subbands in a CSI reporting frequency band for CSI reporting (or, the CSI subbands in a downlink subband associated with the SBFD configuration information among one or more indicated CSI subbands) are numbered continuously. Optionally, the CSI subbands in a CSI reporting frequency band for CSI reporting (or, the CSI subbands in a downlink subband associated with the SBFD configuration information among one or more indicated CSI subbands) are numbered continuously in increasing order. The increasing and continuous numbering may be numbering continuously in increasing order according to corresponding bit positions / frequency domain positions. Optionally, the first subband included in the CSI reporting band for CSI reporting (or, the CSI subband in the downlink subband associated with the SBFD configuration information among the indicated one or more CSI subbands) may be numbered as subband #0. Optionally, the lowest subband in the CSI reporting band for CSI reporting (or, the CSI subband in the downlink subband associated with the SBFD configuration information among the indicated one or more CSI subbands) may be numbered as subband #0. Optionally, the k+1th subband included in the CSI reporting band (or, the CSI subband in the downlink subband associated with the SBFD configuration information among the indicated one or more CSI subbands) may be numbered as subband #k. Optionally, the k+1th lowest subband included in the CSI reporting band (or, the CSI subband in the downlink subband associated with the SBFD configuration information among the indicated one or more CSI subbands) may be numbered as subband #k. For example, the subband with the k+1th lowest corresponding bit position (or corresponding frequency domain position) included in the CSI reporting frequency band (or, in the indicated one or more CSI subbands, within the downlink subband associated with the SBFD configuration information) may be numbered as subband #k. Optionally, k ≥ 0. Optionally, if the CSI report includes CSI corresponding to / associated with a CSI subband, the mapping order of the CSI (the associated CSI domain) is determined based on the number of the aforementioned / numbered / renumbered CSI subbands.When one or more indicated CSI subbands are not within the downlink subband associated with the SBFD frequency domain resources, continuous numbering based on the indicated one or more CSI subbands will result in non-continuous subband numbering of the subbands in the CSI reporting frequency band. Because in some cases, the CSI of odd subbands and the CSI of even subbands need to be processed separately and in parallel, non-continuous numbering will lead to an imbalance between odd and even subbands, increasing the time for parallel calculation. This numbering method ensures the continuity of the subband numbering used for CSI reporting, reduces the time it takes for UEs to perform CSI calculations, and improves the efficiency of the communication system.

[0174] ■Optionally, the UE determines wideband CQI reporting and / or subband CQI reporting based on the CSI reporting band. Optionally, the UE can configure wideband CQI reporting or subband CQI reporting through the high-level parameters (e.g., cqi-FormatIndicator) included / corresponding / associated in the CSI reporting configuration. When wideband CQI is configured, one / each codeword is reported for the entire CSI reporting band (a wideband CQI is reported for each codeword for the entire CSI reporting band). When subband CQI is configured, one / each codeword is reported for each subband in the CSI reporting band (e.g., subband CQI).

[0175] ■ Optionally, the UE determines wideband PMI reporting and / or subband PMI reporting based on the CSI reporting band. Optionally, the UE may configure wideband PMI reporting or subband PMI reporting through higher-layer parameters (e.g., pmi-FormatIndicator) included / corresponding / associated with the CSI reporting configuration. When wideband PMI reporting is configured, one wideband PMI is reported for the entire CSI reporting band. When subband PMI reporting is configured, except for the case of two antenna ports, one wideband indication (e.g., wideband PMI, or i1) is reported for the entire CSI reporting band, and one subband indication (e.g., subband PMI, or i2) is reported for each subband in the CSI reporting band. In the case of subband PMI being configured and in the case of 2 antenna ports, one subband indication (or, one subband PMI) is reported for each subband in the CSI reporting band.

[0176] The following discusses a method for a UE to determine a CSI reporting frequency band when the BWP associated with / corresponding to a CSI reporting configuration (associated CSI reporting settings) is less than (or less than or equal to) a predefined value of PRBs, or when the number of PRBs in a downlink subband associated with an SBFD frequency-domain resource to which the BWP associated with / corresponds is less than (or less than or equal to) a predefined value. Optionally, the predefined value may be a positive integer. For example, the predefined value may be one of 4, 8, 12, 16, 24, 36, and 48.

[0177] ●Method 1: The CSI reporting band associated with the CSI reporting configuration is determined based on the BWP (PRBs included) and the SBFD frequency domain resources. Optionally, the CSI reporting band is a subset of PRBs within the BWP. Optionally, the PRB subset is based on / refers to (all) frequency domain resources (e.g., PRBs / CRBs) included in the BWP within the downlink subband associated with the SBFD frequency domain resources. Optionally, the PRB subset is based on / refers to (all) frequency domain resources (e.g., PRBs / CRBs) outside the uplink subband (and guard band) associated with the SBFD frequency domain resources included in the BWP. Optionally, method 1 for determining the CSI reporting band provides a method for determining the CSI reporting band in the SBFD scenario, clarifies the frequency domain resources corresponding to the CSI reported by the UE, and ensures the reliability of the CSI measurement / CSI reporting.

[0178] ■Optionally, if the PRBs included in / corresponding to a PRB subset are non-contiguous (for example, the PRB subset includes / corresponds to two or more groups of contiguous PRBs), the CSI reporting band is a predefined group of contiguous PRBs in the PRB subset. For example, the CSI reporting band is a group of contiguous PRBs with the lowest / highest frequency domain position in the PRB subset. For example, the CSI reporting band is a group of contiguous PRBs with the lowest / highest number associated with the start / end PRBs in the PRB subset (for example, the PRB number, or the number of the CRB to which the PRB corresponds). For example, the CSI reporting band is a group of contiguous PRBs with the largest / smallest number of PRBs in the PRB subset. Since the PRBs in a BWP may be split into non-contiguous PRBs by a downlink subband, and processing non-contiguous PRBs in a BWP increases the complexity of UE processing, the method herein for determining the frequency domain resources corresponding to a CSI subband based on a PRB subset can enable the UE to measure only contiguous PRBs within the BWP, thereby reducing UE processing complexity and improving the performance of the communication system.

[0179] ■ Optionally, the PRBs included in / corresponding to the PRB subset are contiguous. For example, the UE expects the PRBs included in / corresponding to the PRB subset to be contiguous. Because a BWP may be split into non-contiguous PRBs by a downlink subband, and processing non-contiguous PRBs in a BWP increases UE processing complexity, the proposed configuration restriction on PRB subsets can avoid the occurrence of non-contiguous PRBs in the PRB subset, reduce UE processing complexity, and improve communication system performance.

[0180] ■ Optionally, the conditions for executing method 1 of determining the CSI reporting frequency band may include at least one of the following: the UE is configured with SBFD configuration information; the downlink subband associated with the SBFD configuration information partially overlaps with the BWP, or the downlink subband associated with the SBFD configuration information is not completely within the BWP, or the uplink subband (and guard band) associated with the SBFD configuration information is within the BWP; the CSI reporting configuration is configured with parameters for enabling method 2; the first time domain resource is an SBFD time domain resource; and the first condition. For a detailed explanation of "first time domain resource" and "first condition," please refer to the following.

[0181] ●Method 2: The CSI reporting band associated with the CSI reporting configuration is determined based on the BWP (PRBs included). For example, the CSI reporting band refers to all PRBs included in the BWP. Optionally, all PRBs included in the BWP are within the downlink subband associated with the SBFD frequency domain resources. Optionally, the UE expects all PRBs included in the BWP to be within the downlink subband associated with the SBFD frequency domain resources. Optionally, the BWP is not outside the downlink subband associated with the SBFD frequency domain resources. For example, the UE expects the BWP to be outside the downlink subband associated with the SBFD frequency domain resources. For example, the UE does not expect the BWP to be outside the downlink subband associated with the SBFD frequency domain resources. This configuration restriction can avoid the BWP being outside the downlink subband associated with the SBFD frequency domain resources, thereby ensuring that the UE has sufficient bandwidth for CSI measurement / CSI reporting and ensuring the reliability of the CSI measurement / CSI reporting.

[0182] 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 sub-band non-overlapping full-duplex (SBFD) configuration information to a user equipment, wherein the SBFD configuration information indicates SBFD frequency domain resources; at 502, the base station sends a channel state information (CSI) reporting configuration to the user equipment; and at 503, receives CSI associated with a CSI reporting frequency band, wherein the CSI reporting frequency band is determined based on the SBFD frequency domain resources.

[0183] The following discusses, for example, methods for determining and / or reporting CSI by a UE when the UE obtains SBFD configuration information and the SBFD configuration information indicates an SBFD time domain resource. It will be appreciated that methods 400 and 500 described above can be performed independently or in combination with the methods for determining and / or reporting CSI by a UE described below. For example, methods 400 and 500 can each be performed for the first time domain resource described below. For example, methods 400 and 500 can each be performed when the first time domain resource is an SBFD time domain resource.

[0184] In some cases, the UE may be configured with several serving cells. One / each of the several serving cells may be configured with a CSI reporting configuration. Optionally, the serving cell where the UE sends the CSI report is the same as the serving cell where the CSI reporting configuration corresponding to the CSI report is located. For example, if the UE is to send a CSI report on a serving cell, the UE determines the CSI report based on the CSI reporting configuration associated with the serving cell. Optionally, the serving cell where the UE sends the CSI report is the same as the frequency domain unit corresponding to the serving cell where the CSI reporting configuration corresponding to the CSI report is located. For example, if the UE is to send a CSI report on a serving cell, the UE determines the CSI report based on the CSI reporting configuration in the frequency domain unit (e.g., frequency band) associated with the serving cell. When the service cell where the CSI reporting configuration (or the CSI reporting corresponding to the CSI reporting configuration) is located is in the same frequency domain unit as the SBFD cell, the CSI reporting may be affected by the SBFD operation. For example, on the SBFD time domain resources and non-SBFD time domain resources, the interference generated by the corresponding SBFD is different or the devices performing the SBFD operation are different, and corresponding sending / receiving parameters are required to overcome the interference or adapt to the devices performing the SBFD operation. The method proposed below can implement CSI reporting using different parameters in the SBFD time domain resources and non-SBFD time domain resources, respectively, to reduce the performance degradation caused by the interference associated with the SBFD device or SBFD, thereby improving the efficiency of the communication system. In the present disclosure, if two cells are in the same frequency band, it can be considered that the two cells correspond to two cells in intra-band carrier aggregation (intra-band Carrier Aggreation).

[0185] The following discusses a method for the UE to determine and / or report CSI and / or determine parameters related to the uplink channel carrying the CSI report corresponding to / associated with the CSI reporting configuration based on the CSI reporting configuration when the CSI reporting configuration (or the CSI report corresponding to the CSI reporting configuration) is within the SBFD cell, or the serving cell where the CSI reporting configuration (or the CSI report corresponding to the CSI reporting configuration) is located and the SBFD cell are within the same frequency domain unit, or the serving cell where the UE sends the CSI report (or the uplink channel carrying the CSI report) is located and the SBFD cell are within the same frequency domain unit. For example, when the serving cell where the CSI reporting configuration is located (or the serving cell where the CSI report associated with the CSI reporting configuration is located) and the SBFD cell are within the same frequency domain unit, the UE determines parameters related to the uplink channel carrying the CSI report corresponding to the CSI reporting configuration based on the first time domain resource associated with the SBFD time domain resource. Optionally, the first time domain resource may be / may include one of the following: an SBFD time domain resource and / or a non-SBFD time domain resource, and the definitions of SBFD time domain resources and non-SBFD time domain resources are as described above. Optionally, the UE may determine, based on the uplink channel associated with the CSI report, that the first time domain resource is at least one of an SBFD time domain resource and a non-SBFD time domain resource. For example, when the uplink channel associated with / corresponding to the CSI report is in the SBFD time domain resource, the first time domain resource is an SBFD time domain resource. For example, when the uplink channel associated with the CSI report is in the non-SBFD time domain resource, the first time domain resource is a non-SBFD time domain resource. Specifically, the base station configures / indicates to the UE the uplink channel to be used to carry the CSI report associated / corresponding to the CSI report configuration, determines the specific content of the first time domain resource (i.e., SBFD time domain resource and / or non-SBFD time domain resource) based on the configured / indicated uplink channel (e.g., the type of uplink channel, or the time domain position corresponding to the uplink channel), and then determines the parameters of the uplink channel to be applied in the CSI report for carrying the CSI report based on the determined first time domain resource. Optionally, the UE can receive two or two groups of configurations from the base station, wherein the two or two groups of configurations are respectively for the case where the first time domain resource is an SBFD time domain resource and for the case where the first time domain resource is a non-SBFD time domain resource.

[0186] ●When the CSI reporting configuration corresponds to periodic CSI reporting, or corresponds to semi-persistent CSI reporting on the physical uplink control channel (PUCCH), or the corresponding CSI is reported on the PUCCH, or the reporting configuration type parameter reportConfigType included in the CSI reporting configuration is set to "periodic" or "semiPersistentOnPUCCH", the CSI reporting configuration may include two groups / two parameters for indicating PUCCH (transmission). For example, the first group / first parameter is for the first time domain resource being an SBFD time domain resource. For example, the second group / first parameter is for the first time domain resource being a non-SBFD time domain resource. Optionally, when the PUCCH corresponding to the CSI reporting corresponding to the CSI reporting configuration is to be sent on the SBFD time domain resource, the parameters of the PUCCH (transmission) are the first group of parameters / first parameters or are determined to be the first group of parameters / first parameters. Optionally, when the PUCCH corresponding to the CSI reporting configuration and the CSI reporting corresponding to the CSI reporting are to be sent on non-SBFD time domain resources, the parameters of the PUCCH (transmission) are the second group of parameters / second parameters or are determined to be the second group of parameters / second parameters. Optionally, the parameters associated with the PUCCH (transmission) include / correspond to at least one of the following: a power parameter / uplink power control parameter for PUCCH (transmission) (for example, p0alpha), a QCL parameter for PUCCH (transmission), a frequency hopping parameter for PUCCH (transmission), and a parameter for indicating the PUCCH resource corresponding to / used by the PUCCH (transmission) (for example, pucch-CSI-ResourceList). Since the degree of interference on SBFD time domain resources and non-SBFD time domain resources may be different, using different parameters on SBFD time domain resources and non-SBFD time domain resources respectively can improve the performance of uplink transmission by targeting different interference on SBFD time domain resources and non-SBFD time domain resources.

[0187] ●When the CSI reporting configuration corresponds to semi-persistent CSI reporting on PUSCH, or when the CSI reporting configuration corresponds to CSI reporting on PUCSH, or when the reporting configuration type parameter reportConfigType included in the CSI reporting configuration is set to "semiPersistentOnPUSCH", the CSI reporting configuration may include two groups / two parameters for indicating the parameters used for PUSCH (transmission). For example, the first group / first parameter is for the first time domain resource being an SBFD time domain resource. For example, the second group / second parameter is for the first time domain resource being a non-SBFD time domain resource. Optionally, when the PUSCH corresponding to the CSI reporting corresponding to the CSI reporting configuration is to be sent on the SBFD time domain resource, the parameters of the PUSCH (transmission) are the first group of parameters / first parameters or are determined to be the first group of parameters / first parameters. When the PUSCH corresponding to the CSI reporting configuration is to be sent on a non-SBFD time domain resource, the parameters of the PUSCH (send) are the second group of parameters / second parameters or are determined to be the second group of parameters / second parameters.

[0188] The associated parameters include: at least one of a power parameter (e.g., p0alpha) for PUSCH (transmission), a QCL parameter for PUSCH (transmission), a frequency hopping parameter for PUSCH (transmission), and a parameter indicating the PUSCH resource corresponding to / used by PUSCH (transmission). Because the degree of interference on SBFD time-domain resources and non-SBFD time-domain resources may differ, using different parameters on SBFD time-domain resources and non-SBFD time-domain resources can improve uplink transmission performance by addressing the different interference on SBFD time-domain resources and non-SBFD time-domain resources.

[0189] Optionally, the above method for determining the parameters of the uplink channel carrying CSI reporting is based on the uplink channel carrying CSI reporting as an example, and the present disclosure is not limited thereto. For example, the method can be used to determine parameters related to general uplink signals that do not carry CSI reporting (e.g., sounding reference signal (SRS), demodulation reference signal (DM-RS) of PUSCH, DM-RS of PUCCH, phase tracking reference signal (PT-RS), reference signal for positioning) and / or uplink channels (e.g., PUSCH, PUCCH, physical random access channel (PRACH)). For example, the method can be used to determine parameters of downlink signals (e.g., SSB, DM-RS of PDSCH, DM-RS of PDCCH, PT-RS, reference signal for positioning) and / or downlink channels (e.g., PDSCH, PDCCH, physical broadcast channel (PBCH)).

[0190] In some cases, the UE may be configured with several serving cells. One / each of the several serving cells may be configured with a CSI resource setting. Optionally, one / each of the several serving cells may be configured with a CSI resource setting. The cell where the CSI reporting configuration is located and the cell where the CSI resource setting associated with the CSI reporting configuration is located may be the same or different. For example, the CSI reporting configuration may include a high-layer parameter carrier for indicating the cell where the associated CSI resource setting is located. For example, the UE may determine the cell where the corresponding measurement resource is located based on the high-layer parameter carrier included in the CSI reporting configuration. For example, the UE may determine on which cell to perform measurement based on the high-layer parameter carrier that may be included in the CSI reporting configuration. For example, when the CSI reporting configuration does not include a high-layer parameter carrier, the cell where the corresponding / associated CSI resource setting is located is the same as the cell where the CSI reporting configuration is located. For example, when the CSI reporting configuration does not include a high-layer parameter carrier, the associated CSI resource setting is located in the cell where the CSI reporting configuration is located. Generally speaking, the UE needs to determine the cell where the CSI resource setting associated with the CSI reporting configuration is located. When the cell where the CSI resource setting associated with the CSI reporting configuration is located is an SBFD cell, or when the cell where the CSI resource setting associated with the CSI reporting configuration is located is in the same frequency domain unit as the SBFD cell, the CSI measurement and / or CSI reporting related to the CSI resource setting may be affected by the SBFD operation of the base station. Therefore, corresponding methods are needed to optimize the CSI-related processes to improve the reliability of the communication system.

[0191] The following discusses a method for a UE to measure CSI and / or determine CSI and / or report CSI based on a CSI reporting configuration when the CSI reporting configuration is within an SBFD cell, or when the CSI resource setting associated with the CSI reporting configuration is within the same frequency domain unit as the SBFD cell. For example, when a first condition is met, the UE measures CSI and / or determines CSI and / or reports CSI based on a CSI reporting configuration, wherein the first condition includes at least one of: the CSI reporting configuration is within an SBFD cell, the CSI resource setting associated with the CSI reporting configuration is within the SBFD cell, the serving cell where the CSI reporting configuration is located is within the same frequency domain unit as the SBFD cell, and the serving cell where the CSI resource setting associated with the CSI reporting configuration is located is within the same frequency domain unit as the SBFD cell. The UE may perform at least one of the following operations based on the first time domain resource associated with the SBFD time domain resource:

[0192] ● Operation 1: Derive measurement results based on the reference signal related to the CSI resource setting;

[0193] ●Operation 2: Do not receive reference signals related to CSI resource settings;

[0194] ● Operation 3: Determine and / or report CSI based on the CSI reporting configuration.

[0195] Optionally, when the serving cell in which the CSI reporting configuration (associated CSI resource setting) is located and the SBFD cell are within the same frequency domain unit, the UE performs at least one of operation 1, operation 2, and operation 3 based on a first time domain resource associated with the SBFD time domain resource. Optionally, the first time domain resource may be / may include: an SBFD time domain resource and / or a non-SBFD time domain resource. For example, the first time domain resource may be: at least one of an SBFD time domain resource and a non-SBFD time domain resource.

[0196] ● Optionally, the UE may determine, based on the uplink channel associated with the CSI report, that the first time domain resource is:

[0197] At least one of an SBFD time domain resource and a non-SBFD time domain resource. For example, when the uplink channel associated with / corresponding to the CSI report is in the SBFD time domain resource, the first time domain resource is an SBFD time domain resource. For example, when the uplink channel associated with the CSI report is in the non-SBFD time domain resource, the first time domain resource is a non-SBFD time domain resource. For example, when the uplink channel associated with the CSI report is in the SBFD time domain resource and in the non-SBFD time domain resource, the first time domain resource is an SBFD time domain resource. For example, when the uplink channel associated with the CSI report is in the SBFD time domain resource and in the non-SBFD time domain resource, the first time domain resource is a non-SBFD time domain resource. For example, when the uplink channel associated with the CSI report is in the SBFD time domain resources and in the non-SBFD time domain resources, the UE determines that the first time domain resource is an SBFD time domain resource or a non-SBFD time domain resource based on the number of time slots / symbols of the time domain resources of the uplink channel in the SBFD time domain resources and the number of time slots / symbols of the time domain resources of the uplink channel in the non-SBFD time domain resources. For example, when the uplink channel associated with the CSI report is in the SBFD time domain resources and in the non-SBFD time domain resources, if the number of time slots / symbols of the time domain resources in the SBFD time domain resources is greater than or equal to the number of time slots / symbols of the time domain resources of the uplink channel in the non-SBFD time domain resources, then the first time domain resource is an SBFD time domain resource. For example, when the uplink channel associated with the CSI report is in the SBFD time domain resources and in the non-SBFD time domain resources, if the number of time slots / symbols of the time domain resources in the SBFD time domain resources is greater than or equal to the number of time slots / symbols of the time domain resources in the non-SBFD time domain resources, then the first time domain resource is an SBFD time domain resource.

[0198] / The number of symbols is smaller than the time slot of the uplink channel in the time domain resource in the non-SBFD time domain resource /

[0199] symbols, then the first time domain resource is a non-SBFD time domain resource. For example, when the uplink channel associated with the CSI report is in the SBFD time domain resource and in the non-SBFD time domain resource, the UE determines whether the first time domain resource is a SBFD time domain resource or a non-SBFD time domain resource based on the start time slot / end time slot / start symbol / end symbol of the uplink channel. For example, when the uplink channel associated with the CSI report is in the SBFD time domain resource and in the non-SBFD time domain resource, if the start time slot / end slot / start symbol / end symbol of the uplink channel is in the SBFD time domain resource, then the first time domain resource is a SBFD time domain resource. For example, when the uplink channel associated with the CSI report is in the SBFD time domain resource and in the non-SBFD time domain resource, if the start time slot / end slot / start symbol / end symbol of the uplink channel is in the non-SBFD time domain resource, then the first time domain resource is a non-SBFD time domain resource. This method can determine the specific content of the first time domain resource through the time domain position reported by the CSI, saving signaling overhead and improving the efficiency of the communication system.

[0200] ● Optionally, the UE may determine, based on the CSI reporting configuration, that the first time domain resource is at least one of an SBFD time domain resource and a non-SBFD time domain resource. For example, the CSI reporting configuration includes / is configured with a parameter for selecting a time domain resource, which is referred to herein as a time domain resource selection parameter, but the present disclosure does not limit the name of this parameter, wherein the parameter is used to indicate that the first time domain resource corresponds to at least one of an SBFD time domain resource and a non-SBFD time domain resource. For example, the CSI reporting configuration includes / is configured with a time domain resource selection parameter, wherein the parameter is used to indicate that the first time domain resource corresponds to at least one of an SBFD time domain resource and a non-SBFD time domain resource. For example, the CSI reporting configuration includes / is configured with a time domain resource selection parameter, and the UE determines, based on the time domain resource selection parameter, that the first time domain resource is at least one of an SBFD time domain resource and a non-SBFD time domain resource. This method can indicate the specific content of the first time domain resource through the time domain resource selection parameter, thereby improving the flexibility of the indication and the performance of the communication system.

[0201] ● Optionally, the UE may determine, based on the subconfiguration included in the CSI reporting configuration, that the first time domain resource is: at least one of an SBFD time domain resource and a non-SBFD time domain resource. For example, the CSI reporting configuration includes one or more subconfigurations. Optionally, the UE may determine the CSI corresponding to the subconfiguration. Optionally, the UE may perform the above operations (for example, at least one of operation 1, operation 2, and operation 3) based on the subconfiguration. For example, the subconfiguration included in the CSI reporting configuration includes / is configured with a time domain resource selection parameter, wherein the time domain resource selection parameter indicates that the first time domain resource associated with / corresponding to the subconfiguration corresponds to at least one of an SBFD time domain resource and a non-SBFD time domain resource. For example, the subconfiguration included in the CSI reporting configuration includes / is configured with a time domain resource selection parameter, and the UE determines, based on the time domain resource selection parameter, that the first time domain resource corresponding to the subconfiguration is: at least one of an SBFD time domain resource and a non-SBFD time domain resource. Optionally, the subconfiguration may also include / indicate a resource parameter, an antenna port subset parameter, and a power parameter. For example, the UE determines CSI based on at least one of a resource parameter, an antenna port subset parameter, a power parameter, and a frequency-domain-related parameter indicated by the subconfiguration. Optionally, the resource parameter of the subconfiguration is used to indicate a resource or resource subset in a resource set associated with the CSI reporting configuration associated with the subconfiguration. Optionally, the antenna port subset parameter of the subconfiguration is used to indicate a port subset (used for CSI calculation / CSI determination) of resources in a resource set associated with the CSI reporting configuration associated with the subconfiguration. Optionally, the power parameter of the subconfiguration is used to indicate the power / power assumption (used for CSI calculation / CSI determination) of resources in a resource set associated with the CSI reporting configuration associated with the subconfiguration. The UE determines / calculates CSI based on the power parameter indicated by the subconfiguration and the configured power parameter (e.g., powerControlOffset) for the resources in the resource set associated with the CSI reporting configuration. Optionally, the frequency-domain-related parameter of the subconfiguration may be a reporting configuration configured in the frequency domain. Optionally, the frequency-domain-related parameter of the subconfiguration is reportFreqConfiguration. Optionally, the frequency domain-related parameter of the sub-configuration can be used to indicate the (continuous or non-continuous) sub-band corresponding to the CSI reporting. Optionally, the frequency domain-related parameter of the sub-configuration is csi-ReportingBand. This method can indicate the specific content of the first time domain resource through the sub-configuration, thereby improving the flexibility of the indication and the performance of the communication system.

[0202] ● Optionally, the UE may determine, based on a trigger state corresponding to / associated with the CSI reporting configuration (e.g., an aperiodic CSI trigger state or a semi-persistent CSI trigger state), that the first time domain resource is at least one of an SBFD time domain resource and a non-SBFD time domain resource. For example, the UE receives / detects downlink control information (DCI) (including a CSI request field) (e.g., DCI format 0_1, DCI format 0_2, or DCI format 0_3), and the DCI triggers / indicates / initiates a CSI trigger state, and the CSI trigger state indicates / is associated with the CSI reporting configuration. Optionally, the CSI trigger state may be used to indicate that the first time domain resource is at least one of an SBFD time domain resource and a non-SBFD time domain resource. For example, the CSI trigger state is associated with a time domain resource selection parameter, and the UE determines, based on the time domain selection parameter, that the first time domain resource is at least one of an SBFD time domain resource and a non-SBFD time domain resource. This method can indicate the specific content of the corresponding first time domain resource while triggering / activating the CSI reporting configuration associated with the CSI reporting through DCI signaling, thereby improving the flexibility of the indication and the performance of the communication system.

[0203] ● Optionally, the UE may determine, based on a media access control element (MAC-CE) for activating CSI reporting associated with a CSI reporting configuration, that the first time domain resource is at least one of an SBFD time domain resource and a non-SBFD time domain resource. For example, the UE may receive a MAC-CE for activating CSI reporting associated with a CSI reporting configuration. Optionally, the MAC-CE may include a field for indicating that the first time domain resource is at least one of an SBFD time domain resource and a non-SBFD time domain resource. For example, the size of the field may be 1 bit, for example, the field is used to indicate that the first time domain resource is one of an SBFD time domain resource and a non-SBFD time domain resource. For example, the size of the field may be 2 bits, for example, the field is used to indicate that the first time domain resource is at least one of an SBFD time domain resource and a non-SBFD time domain resource. Here, the first three code points of the field may be mapped one-to-one with an SBFD time domain resource, a non-SBFD time domain resource, or an SBFD time domain resource and a non-SBFD time domain resource. This method can indicate the specific content of the corresponding first time domain resource while activating the CSI reporting associated with the CSI reporting configuration through MAC-CE signaling, thereby improving the flexibility of the indication and the performance of the communication system.

[0204] ● Optionally, the UE can determine that the first time domain resource is at least one of an SBFD time domain resource and a non-SBFD time domain resource based on the time domain position of the CSI reference resource corresponding to / associated with the CSI reporting configuration. For example, when the uplink channel associated with / corresponding to the CSI reporting configuration corresponding to / associated with the CSI reporting is in the SBFD time domain resource, the first time domain resource is an SBFD time domain resource. For example, when the uplink channel associated with the CSI reporting is in the non-SBFD time domain resource, the first time domain resource is a non-SBFD time domain resource. This method can determine the specific content of the first time domain resource through the CSI reference resource, saves signaling overhead, and improves the efficiency of the communication system.

[0205] Optionally, when the first time domain resource (determined / indicated) is an SBFD time domain resource and a non-SBFD time domain resource, the UE performs the above operations (e.g., at least one of Operation 1, Operation 2, and Operation 3) based on the SBFD time domain resource and the non-SBFD time domain resource, respectively. For example, when the first time domain resource (determined / indicated) is an SBFD time domain resource and a non-SBFD time domain resource, the UE performs the above operations (e.g., at least one of Operation 1, Operation 2, and Operation 3) based on the SBFD time domain resource, and the UE performs the above operations (e.g., at least one of Operation 1, Operation 2, and Operation 3) based on the non-SBFD time domain resource. For example, the UE performs the above operations (e.g., at least one of Operation 1, Operation 2, and Operation 3) based on the SBFD time domain resource and a reference signal associated with the SBFD time domain resource, and the UE performs the above operations (e.g., at least one of Operation 1, Operation 2, and Operation 3) based on the non-SBFD time domain resource and the reference signal associated with the non-SBFD time domain resource, respectively. Optionally, the reference signal associated with the SBFD time domain resource may be: a first subset of resources in a resource set associated with the CSI resource setting associated with the CSI reporting configuration. Optionally, the reference signal associated with the non-SBFD time domain resource may be: a second subset of resources in a resource set associated with the CSI resource setting associated with the CSI reporting configuration. Optionally, the first subset and / or the second subset are determined in a predefined manner. For example, the UE determines the first subset and / or the second subset based on the order of the resources in the resource set. For example, if the resource set includes K resources, the first subset is the first K / 2 resources in the resource set, and / or the second subset is the first K / 2 resources in the resource set. Optionally, the first subset and the second subset are indicated / configured by the CSI reporting configuration. For example, the CSI reporting configuration includes one or more parameters for indicating the first subset and / or the second subset.

[0206] Optionally, the UE may be configured with two reporting frequency domain configuration parameters (e.g., reportFreqConfiguration) in the CSI reporting configuration. Optionally, the first of the two reporting frequency domain configuration parameters corresponds to / is associated with an SBFD time domain resource. Optionally, the second of the two reporting frequency domain configuration parameters corresponds to / is associated with a non-SBFD time domain resource. For example, when the first time domain resource (determined as / indicated as) is an SBFD time domain resource and a non-SBFD time domain resource, the UE performs the above operations (e.g., operation 3) based on the SBFD time domain resource and the first reporting frequency domain configuration parameter, and the UE performs the above operations (e.g., operation 3) based on the non-SBFD time domain resource and the second reporting frequency domain configuration parameter.

[0207] Optionally, in the description above, if the time domain resource selection parameter is not configured, the UE determines the first time domain resource as at least one of an SBFD time domain resource and a non-SBFD time domain resource in a predefined manner. For example, optionally, in the description above, if the time domain resource selection parameter is not configured, the UE determines the first time domain resource as a non-SBFD time domain resource. For example, optionally, in the description above, if the time domain resource selection parameter is not configured, the UE determines the first time domain resource as an SBFD time domain resource and a non-SBFD time domain resource. This method can determine the specific content of the first time domain resource in a predefined manner, saving signaling overhead and improving the efficiency of the communication system.

[0208] In some cases, operation 1 may be that the UE may determine and / or report the CSI based on the CSI measurement associated with the CSI reporting configuration. Optionally, the (most recent) CSI measurement opportunity may appear in the first time domain resource. For example, the UE may determine and / or report the CSI based on the CSI measurement in the first time domain resource. For example, the UE may determine and / or report the CSI based on (the measurement of) the most recent CSI measurement opportunity in the first time domain resource. For example, when the first time domain resource is an SBFD time domain resource and a non-SBFD time domain resource, the most recent CSI measurement opportunity may appear in the SBFD time domain resource and the non-SBFD time domain resource, respectively. For example, when the first time domain resource is an SBFD time domain resource and a non-SBFD time domain resource, the UE may determine and / or report the CSI based on (the measurement of) the most recent CSI measurement opportunity in the SBFD time domain resource, and the UE may determine and / or report the CSI based on (the measurement of) the most recent CSI measurement opportunity in the non-SBFD time domain resource. This method can determine the CSI measurement / determine the time domain resources based on the SBFD time domain resources, thereby avoiding the UE from averaging the CSI measurement results obtained in the SBFD time domain resources and the CSI measurement results obtained in the non-SBFD time domain resources. As a result, the CSI determined by the UE can correspond to the channels of the SBFD time domain resources and the non-SBFD time domain resources respectively, thereby improving the accuracy of the CSI.

[0209] In some cases, operation 1 may be that the UE may determine and / or report CSI based on the reference signal resources associated with the resource set associated with the CSI reporting configuration. Optionally, the UE may determine and / or report CSI based on the reference signal resources associated with the resource set associated with the CSI reporting configuration in the first time domain resource. Optionally, the UE determines CSI (derive CSI) based on the assumption that transmission opportunities associated with reference signal resources in SBFD resources and transmission opportunities associated with reference signal resources in non-SBFD resources are not averaged. Optionally, when the first time domain resource is an SBFD time domain resource and a non-SBFD time domain resource, or the first time domain resource is an SBFD time domain resource, or the first time domain resource is a non-SBFD time domain resource, the UE determines / calculate CSI (derive / calculate CSI) based on the assumption that transmission opportunities associated with reference signal resources in SBFD resources and transmission opportunities associated with reference signal resources in non-SBFD resources are not averaged. In this disclosure, the term "transmission opportunity" is used interchangeably with the terms "measurement opportunity," "measurement instance," "opportunity," or "instance." This approach prevents the UE from averaging CSI measurement results obtained within SBFD time-domain resources and CSI measurement results obtained within non-SBFD time-domain resources. This allows the CSI determined by the UE to correspond to channels in both SBFD and non-SBFD time-domain resources, improving CSI accuracy.

[0210] In some cases, the CSI reporting configuration may include a channel measurement time domain restriction parameter and / or an interference measurement time domain restriction parameter. Optionally, the channel measurement time domain restriction parameter (e.g., timeRestrictionForChannelMeasurements) is used to enable time domain restriction for channel measurements. Optionally, the interference measurement time domain restriction parameter (e.g., timeRestrictionForInterferenceMeasurements) is used to enable time domain restriction for interference measurements.

[0211] Optionally, operation 1 may be that when the channel measurement time domain restriction parameter included in the CSI reporting configuration, or the interference measurement time domain restriction parameter is set to "not configured", the UE obtains a measurement result based on a reference signal resource related to a CSI resource setting within the first time domain resource and no later than the CSI reference resource corresponding to the CSI report associated with the CSI reporting configuration. Optionally, the measurement result may be a channel measurement result and / or an interference measurement result. This method allows the UE to determine the CSI separately through the CSI measurement results obtained within the SBFD time domain resources and the CSI measurements obtained within the non-SBFD time domain resources, thereby enabling the CSI determined by the UE to correspond to the channels of the SBFD time domain resources and the non-SBFD time domain resources, respectively, thereby improving the accuracy of the CSI.

[0212] ● Optionally, if the channel measurement time domain restriction parameter in the CSI reporting configuration is set to "not configured" and / or the first condition is met, the UE determines the channel measurement based on the CSI-RS (or, CSI-RS opportunity) in the first time domain resource. Optionally, the channel measurement may be a channel measurement for calculating CSI (e.g., calculating CQI). For example, if the channel measurement time domain restriction parameter in the CSI reporting configuration is set to "not configured" and / or the first condition is met, the UE determines the channel measurement for calculating CSI based only on the CSI-RS (or, CSI-RS opportunity) associated with the CSI resource setting associated with the CSI reporting configuration in the first time domain resource. Optionally, calculating CSI may be calculating CQI or calculating CSI related to CQI. Optionally, the CSI-RS may be an NZP CSI-RS. Optionally, the CSI-RS opportunity may be a CSI-RS transmission opportunity. Optionally, the CSI is reported in uplink time slot n. Optionally, n may represent a time slot number. Optionally, n≥0. Here, CSI-RS (or, CSI-RS opportunity) refers to / includes / corresponds to at least one of the following:

[0213] A CSI-RS (or CSI-RS opportunity) no later than the CSI reference resource;

[0214] ■ CSI-RS (or CSI-RS opportunity) within the first time domain resource;

[0215] ■CSI-RS (or, CSI-RS opportunity) during the DRX activation time;

[0216] ■ When DRX is configured, CSI-RS (or, CSI-RS opportunity) during the DRX activation time;

[0217] ■CSI-RS (or, CSI-RS opportunity) during the cell DTX activation time;

[0218] ■ When cell DTX is activated on the serving cell where the CSI resource configuration associated with the CSI reporting configuration is located, the CSI-RS (or CSI-RS opportunity) within the cell DTX activation time of the serving cell.

[0219] ●Optionally, if the channel measurement time domain restriction parameter in the CSI reporting configuration is set to "not configured" and / or the first condition is met, the UE may determine the channel measurement based on the CSI-RS (or, CSI-RS opportunity) in the first time domain resource. Optionally, the channel measurement may be a channel measurement for calculating CSI (e.g., calculating L1-RSRP / L1-SINR). For example, when the channel measurement time domain restriction parameter in the CSI reporting configuration is set to "not configured" and / or the first condition is met, and / or one or two resource settings associated with the CSI reporting configuration are configured for L1-SINR measurement, the UE determines the channel measurement for calculating L1-RSRP / L1-SINR based only on the SSB or CSI-RS (or, SSB or CSI-RS opportunity) associated with the CSI resource setting associated with the CSI reporting configuration in the first time domain resource. Optionally, the CSI-RS may be an NZP CSI-RS. Optionally, the CSI-RS opportunity may be a CSI-RS transmission opportunity. Optionally, L1-RSRP / L1-SINR is reported in uplink time slot n. Optionally, n may represent a time slot number. Optionally, n ≥ 0. Here, SSB or CSI-RS (or, SSB or CSI-RS opportunity) refers to / includes / corresponds to at least one of the following:

[0220] ■ An SSB or CSI-RS (or, an SSB or CSI-RS opportunity) no later than the CSI reference resource;

[0221] ■ An SSB or CSI-RS (or, an SSB or CSI-RS opportunity) within a first time domain resource;

[0222] ■SSB or CSI-RS (or, SSB or CSI-RS opportunity) during the DRX activation time;

[0223] ■When DRX is configured, SSB or CSI-RS (or, SSB or CSI-RS opportunity) during the DRX activation time;

[0224] ■SSB or CSI-RS (or, SSB or CSI-RS opportunity) during the cell DTX activation time;

[0225] ■ When cell DTX is activated on the serving cell where the CSI resource configuration associated with the CSI reporting configuration is located, the SSB or CSI-RS (or, SSB or CSI-RS opportunity) within the cell DTX activation time of the serving cell.

[0226] ● Optionally, if the interference measurement time domain restriction parameter in the CSI reporting configuration is set to "not configured" and / or the first condition is met, the UE determines the interference measurement based on the CSI-IM and / or CSI-RS (or, CSI-IM and / or CSI-RS opportunity) used for interference measurement in the first time domain resource. Optionally, the interference measurement may be an interference measurement used to calculate CSI (e.g., calculate CQI). For example, if the interference measurement time domain restriction parameter in the CSI reporting configuration is set to "not configured" and / or the first condition is met, the UE may determine the interference measurement based on the CSI-IM and / or CSI-RS (or, CSI-IM and / or CSI-RS opportunity) in the first time domain resource. Optionally, calculating CSI may be calculating CQI or calculating CSI related to CQI. Optionally, the CSI-RS may be an NZP CSI-RS. Optionally, the CSI-RS opportunity may be a CSI-RS transmission opportunity. Optionally, CSI is reported in uplink time slot n. Optionally, n may represent a time slot number. Optionally, n ≥ 0. Here, CSI-IM and / or CSI-RS (or, CSI-IM and / or CSI-RS opportunity) refers to / includes / corresponds to at least one of the following:

[0227] ■ CSI-IM and / or CSI-RS (or CSI-IM and / or CSI-RS opportunity) no later than the CSI reference resource;

[0228] ■ CSI-IM and / or CSI-RS (or CSI-IM and / or CSI-RS opportunity) within the first time domain resource;

[0229] ■ CSI-IM and / or CSI-RS (or, CSI-IM and / or CSI-RS opportunities) during the DRX activation time;

[0230] ■ When DRX is configured, CSI-IM and / or CSI-RS (or, CSI-IM and / or CSI-RS opportunities) during the DRX activation time;

[0231] ■ CSI-IM and / or CSI-RS (or, CSI-IM and / or CSI-RS opportunities) within the cell DTX activation time;

[0232] ■ When cell DTX is activated on the serving cell where the CSI resource setting associated with the CSI reporting configuration is located, the CSI-IM and / or CSI-RS (or CSI-IM and / or CSI-RS opportunities) within the cell DTX activation time of the serving cell.

[0233] ● Optionally, if the interference measurement time domain restriction parameter in the CSI reporting configuration is set to "not configured" and / or the first condition is met, the UE may determine the interference measurement based on the CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity) in the first time domain resource. Optionally, the interference measurement may be an interference measurement for calculating CSI (e.g., calculating L1-SINR). For example, when the interference measurement time domain restriction parameter in the CSI reporting configuration is set to "not configured" and / or the first condition is met, and / or one or two resource settings associated with the CSI reporting configuration are configured for L1-SINR measurement, the UE determines the interference measurement for calculating L1-SINR based only on the CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity) associated with the CSI resource setting associated with the CSI reporting configuration in the first time domain resource. Optionally, the CSI-RS may be an NZP CSI-RS. Optionally, the CSI-RS opportunity may be a CSI-RS transmission opportunity. Optionally, the L1-SINR is reported in uplink time slot n. Optionally, n may represent a time slot number. Optionally, n ≥ 0. Here, CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity) refers to / includes / corresponds to at least one of the following:

[0234] ■ CSI-IM or CSI-RS (or CSI-IM or CSI-RS opportunity) no later than the CSI reference resource;

[0235] ■ CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity) within the first time domain resource;

[0236] ■CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity) within the DRX activation time;

[0237] ■ When DRX is configured, CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity) during the DRX activation time;

[0238] ■CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity) within the cell DTX activation time;

[0239] ■ When cell DTX is activated on the serving cell where the CSI resource configuration associated with the CSI reporting configuration is located, the CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity) within the cell DTX activation time of the serving cell.

[0240] Optionally, operation 1 may be that when the channel measurement time domain restriction parameter included in the CSI reporting configuration, or the interference measurement time domain restriction parameter is set to "configured", the UE obtains a measurement result based on a reference signal resource related to a CSI resource setting within the first time domain resource that is the most recent and no later than the CSI reference resource corresponding to the CSI report associated with the CSI reporting configuration. Optionally, the measurement result may be a channel measurement result and / or an interference measurement result. This method allows the UE to determine the CSI separately through the CSI measurement results obtained within the SBFD time domain resources and the CSI measurements obtained within the non-SBFD time domain resources, thereby enabling the CSI determined by the UE to correspond to the channels of the SBFD time domain resources and the non-SBFD time domain resources, respectively, thereby improving the accuracy of the CSI.

[0241] ● Optionally, if the channel measurement time domain restriction parameter in the CSI reporting configuration is set to "Configured" and / or the first condition is met, the UE determines the channel measurement based on the CSI-RS (or, CSI-RS opportunity) in the first time domain resource. Optionally, the channel measurement may be a channel measurement used to calculate CSI (e.g., calculate CQI). For example, if the channel measurement time domain restriction parameter in the CSI reporting configuration is set to "Configured" and / or the first condition is met, the UE determines the channel measurement used to calculate CSI based only on the CSI-RS (or, CSI-RS opportunity) associated with the CSI resource setting associated with the CSI reporting configuration in the first time domain resource. Optionally, calculating CSI may be calculating CQI or calculating CSI related to CQI. Optionally, the CSI-RS may be an NZP CSI-RS. Optionally, the CSI-RS opportunity may be a CSI-RS transmission opportunity. Optionally, the CSI is reported in uplink time slot n. Optionally, n may represent a time slot number. Optionally, n≥0. Here, CSI-RS (or CSI-RS opportunity) refers to / includes / corresponds to at least one of the following:

[0242] ■The nearest CSI-RS (or, CSI-RS opportunity);

[0243] A CSI-RS (or CSI-RS opportunity) no later than the CSI reference resource;

[0244] ■ CSI-RS (or CSI-RS opportunity) within the first time domain resource;

[0245] ■CSI-RS (or, CSI-RS opportunity) during the DRX activation time;

[0246] ■ When DRX is configured, CSI-RS (or, CSI-RS opportunity) during the DRX activation time;

[0247] ■CSI-RS (or, CSI-RS opportunity) during the cell DTX activation time;

[0248] ■ When cell DTX is activated on the serving cell where the CSI resource configuration associated with the CSI reporting configuration is located, the CSI-RS (or CSI-RS opportunity) within the cell DTX activation time of the serving cell.

[0249] ●Optionally, if the channel measurement time domain restriction parameter in the CSI reporting configuration is set to "Configured" and / or the first condition is met, the UE may determine the channel measurement based on the SSB or CSI-RS (or, SSB or CSI-RS opportunity) within the first time domain resource. Optionally, the channel measurement may be a channel measurement for calculating CSI (e.g., calculating L1-RSRP / L1-SINR). For example, when the channel measurement time domain restriction parameter in the CSI reporting configuration is set to "Configured" and / or the first condition is met, and / or one or two resource settings (associated with the CSI reporting configuration) are configured for L1-SINR measurement, the UE determines the channel measurement for calculating L1-RSRP / L1-SINR based (only) on the SSB or CSI-RS (or, SSB or CSI-RS opportunity) associated with the CSI resource setting associated with the CSI reporting configuration within the first time domain resource. Optionally, the CSI-RS may be an NZP CSI-RS. Optionally, the CSI-RS opportunity may be a CSI-RS transmission opportunity. Optionally, L1-RSRP / L1-SINR is reported in uplink time slot n. Optionally, n may represent a time slot number. Optionally, n ≥ 0. Here, SSB or CSI-RS (or, SSB or CSI-RS opportunity) refers to / includes / corresponds to at least one of the following:

[0250] ■The nearest SSB or CSI-RS (or, SSB or CSI-RS opportunity);

[0251] ■ An SSB or CSI-RS (or, an SSB or CSI-RS opportunity) no later than the CSI reference resource;

[0252] ■ An SSB or CSI-RS (or, an SSB or CSI-RS opportunity) within a first time domain resource;

[0253] ■SSB or CSI-RS (or, SSB or CSI-RS opportunity) during the DRX activation time;

[0254] ■When DRX is configured, SSB or CSI-RS (or, SSB or CSI-RS opportunity) during the DRX activation time;

[0255] ■SSB or CSI-RS (or, SSB or CSI-RS opportunity) during the cell DTX activation time;

[0256] ■ When cell DTX is activated on the serving cell where the CSI resource configuration associated with the CSI reporting configuration is located, the SSB or CSI-RS (or, SSB or CSI-RS opportunity) within the cell DTX activation time of the serving cell.

[0257] ● Optionally, if the interference measurement time domain restriction parameter in the CSI reporting configuration is set to "Configured" and / or the first condition is met, the UE determines the interference measurement based on the CSI-IM and / or CSI-RS (or, CSI-IM and / or CSI-RS opportunity) used for interference measurement in the first time domain resource. Optionally, the interference measurement may be an interference measurement used to calculate CSI (e.g., calculate CQI). For example, if the interference measurement time domain restriction parameter in the CSI reporting configuration is set to "Configured" and / or the first condition is met, the UE may determine the interference measurement based on the CSI-IM and / or CSI-RS (or, CSI-IM and / or CSI-RS opportunity) in the first time domain resource. Optionally, calculating CSI may be calculating CQI or calculating CSI related to CQI. Optionally, the CSI-RS may be an NZP CSI-RS. Optionally, the CSI-RS opportunity may be a CSI-RS transmission opportunity. Optionally, CSI is reported in uplink time slot n. Optionally, n may represent a time slot number. Optionally, n ≥ 0. Here, CSI-IM and / or CSI-RS (or, CSI-IM and / or CSI-RS opportunity) refers to / includes / corresponds to at least one of the following:

[0258] ■ The nearest CSI-IM and / or CSI-RS (or, CSI-IM and / or CSI-RS opportunity);

[0259] ■ CSI-IM and / or CSI-RS (or CSI-IM and / or CSI-RS opportunity) no later than the CSI reference resource;

[0260] ■ CSI-IM and / or CSI-RS (or CSI-IM and / or CSI-RS opportunity) within the first time domain resource;

[0261] ■ CSI-IM and / or CSI-RS (or, CSI-IM and / or CSI-RS opportunities) during the DRX activation time;

[0262] ■ When DRX is configured, CSI-IM and / or CSI-RS (or, CSI-IM and / or CSI-RS opportunities) during the DRX activation time;

[0263] ■ CSI-IM and / or CSI-RS (or, CSI-IM and / or CSI-RS opportunities) within the cell DTX activation time;

[0264] ■ When cell DTX is activated on the serving cell where the CSI resource setting associated with the CSI reporting configuration is located, the CSI-IM and / or CSI-RS (or CSI-IM and / or CSI-RS opportunities) within the cell DTX activation time of the serving cell.

[0265] ●Optionally, if the interference measurement time domain restriction parameter in the CSI reporting configuration is set to "Configured" and / or the first condition is met, the UE may determine the interference measurement based on the CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity) in the first time domain resource. Optionally, the interference measurement may be an interference measurement for calculating CSI (e.g., calculating L1-SINR). For example, when the interference measurement time domain restriction parameter in the CSI reporting configuration is set to "not Configured" and / or the first condition is met, and / or one or two resource settings associated with the CSI reporting configuration are configured for L1-SINR measurement, the UE determines the interference measurement for calculating L1-SINR based only on the CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity) associated with the CSI resource setting associated with the CSI reporting configuration in the first time domain resource. Optionally, the CSI-RS may be an NZP CSI-RS. Optionally, the CSI-RS opportunity may be a CSI-RS transmission opportunity. Optionally, the L1-SINR is reported in uplink time slot n. Optionally, n may represent a time slot number. Optionally, n ≥ 0. Here, CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity) refers to / includes / corresponds to at least one of the following:

[0266] ■The nearest CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity);

[0267] ■ CSI-IM or CSI-RS (or CSI-IM or CSI-RS opportunity) no later than the CSI reference resource;

[0268] ■ CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity) within the first time domain resource;

[0269] ■CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity) within the DRX activation time;

[0270] ■ When DRX is configured, CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity) during the DRX activation time;

[0271] ■CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity) within the cell DTX activation time;

[0272] ■ When cell DTX is activated on the serving cell where the CSI resource configuration associated with the CSI reporting configuration is located, the CSI-IM or CSI-RS (or, CSI-IM or CSI-RS opportunity) within the cell DTX activation time of the serving cell.

[0273] In some cases, operation 2 may be, for example, when the first time domain resource is an SBFD time domain resource, the UE does not perform CSI measurements (e.g., measurements of reference signals) outside the first time domain resource. For example, when the first time domain resource is a non-SBFD time domain resource, the UE does not perform CSI measurements (e.g., measurements of reference signals) outside the first time domain resource. Therefore, the following discusses how the UE does not perform CSI measurements outside the first time domain resource when the first time domain resource is an SBFD time domain resource or a non-SBFD time domain resource. Not performing CSI measurements outside the first time domain resource can help the UE save energy consumption and improve the efficiency of the communication system. Optionally, not performing CSI measurements may include not receiving (or not expecting to receive) the reference signal (or reference signal resource) associated with the CSI measurement corresponding to the CSI reporting configuration. Optionally, the CSI measurement may be a channel measurement and / or interference measurement. Optionally, not performing CSI measurements may include not receiving (or not expecting to receive) the reference signal (or reference signal resource) associated with the CSI reporting configuration.

[0274] ●For example, when the first time domain resource is an SBFD time domain resource, the UE does not receive (or does not expect to receive) the reference signal associated with the CSI resource setting associated with the CSI reporting configuration in the non-SBFD time domain resource. For example, when the first time domain resource is a non-SBFD time domain resource, the UE does not receive the reference signal associated with the CSI resource setting associated with the CSI reporting configuration in the SBFD time domain resource. The reference signal associated with the CSI reporting configuration may be: (all) reference signals (or, reference signal resources) in a resource set for channel measurement and / or interference measurement associated with the CSI resource setting associated with the CSI reporting configuration. Optionally, the reference signal (or, reference signal resource) may be a semi-persistent or periodic reference signal (or, reference signal resource).

[0275] For example, the first time domain resource is a SBFD time domain resource or a non-SBFD time domain resource, and

[0276] When the reporting amount parameter corresponding to / associated with (or configured for) the CSI reporting configuration includes at least 'RI', the UE does not receive (or does not expect to receive) the reference signal associated with the CSI resource setting associated with the CSI reporting configuration in time domain resources other than the first time domain resource. The reference signal associated with the CSI reporting configuration may be: (all) reference signals (or reference signal resources) in the resource set associated with the CSI resource setting associated with the CSI reporting configuration for channel measurement and / or interference measurement. Optionally, the reference signal (or reference signal resource) may be a semi-persistent or periodic reference signal (or reference signal resource).

[0277] Since the UE does not receive the reference signal associated with the CSI resource setting associated with the CSI reporting configuration within the first time domain resource, the UE can receive / demodulate / process the PDSCH based on the assumption that the RE (resource element) of the reference signal can be used to map the RE of the PDSCH, so that the resources corresponding to the CSI-RS can be used for data transmission, thereby improving the efficiency of the communication system. For example, the UE receives an indication from the base station to determine the time domain resources and / or frequency domain resources of the PDSCH. For example, the UE receives an indication from the base station to determine the RE corresponding to the PDSCH. If the PDSCH is within the first time domain resource, and the RE corresponding to the PDSCH has the RE of the reference signal associated with the CSI resource setting associated with the CSI reporting configuration (and the reference signal is a periodic reference signal or a semi-persistent reference signal), then the RE can be used to map the information bit, for example, the RE can be used to map the information bit to the RE in the VRB corresponding to the PDSCH. Optionally, the RE corresponding to the PDSCH can be an RE on the VRB corresponding to the PDSCH.

[0278] In some cases, operation 3 may be that the UE determines whether to report CSI based on the first time domain resource (and the CSI reporting configuration). For example, when the first time domain resource is an SBFD time domain resource or a non-SBFD time domain resource, when the UE receives at least one transmission opportunity for channel measurement and / or one transmission opportunity for interference measurement within the first time domain resource, the UE sends a CSI report corresponding to the CSI reporting configuration. Otherwise, the UE discards the CSI report corresponding to the CSI reporting configuration. Optionally, the transmission opportunity is associated with the CSI resource setting. Optionally, the transmission opportunity may be a transmission opportunity for a reference signal resource in a resource set for channel measurement and / or for interference measurement associated with the CSI reporting configuration. For example, when the second condition is met, the UE sends a CSI report; otherwise, the UE discards the CSI report. The second condition includes at least one of the following:

[0279] After the CSI report (re)configuration, serving cell activation, BWP change, or activation of SP-CSI;

[0280] When the first time domain resource is an SBFD time domain resource, at least one CSI-RS transmission opportunity for channel measurement and / or one CSI-RS and / or CSI-IM opportunity for interference measurement is received in the SBFD time domain resource;

[0281] ■ Optionally, the CSI-RS transmission opportunity for channel measurement is for (one / all / each) resource in the resource set; or, the CSI-RS transmission opportunity for channel measurement is for (one / all / each) resource in a first subset of the resource set. For the description of the first subset, see above.

[0282] ■ Optionally, the CSI-RS and / or CSI-IM opportunity used for interference measurement is for (one / all / each) resource in the resource set; the CSI-RS and / or CSI-IM opportunity used for interference measurement is for (one / all / each) resource in a first subset of the resource set. For the description of the first subset, see above.

[0283] ■ Optionally, the CSI-RS transmission opportunity is no later than the CSI reference resource. For example, the CSI-RS transmission opportunity is a CSI-RS transmission opportunity no later than the CSI reference resource.

[0284] ■ Optionally, the CSI-RS and / or CSI-IM opportunity is not later than the CSI reference resource. For example, the CSI-RS transmission opportunity is a CSI-RS opportunity that is not later than the CSI reference resource and / or the CSI-IM transmission opportunity is a CSI-IM transmission opportunity that is not later than the CSI reference resource.

[0285] When the first time domain resource is a non-SBFD time domain resource, at least one CSI-RS transmission opportunity for channel measurement and / or one CSI-RS and / or CSI-IM opportunity for interference measurement is received in the non-SBFD time domain resource;

[0286] ■ Optionally, the CSI-RS transmission opportunity for channel measurement is for (one / all / each) resource in the resource set; or, the CSI-RS transmission opportunity for channel measurement is for (one / all / each) resource in a second subset of the resource set. For the description of the second subset, see above.

[0287] ■ Optionally, the CSI-RS and / or CSI-IM opportunity used for interference measurement is for (one / all / each) resource in the resource set; the CSI-RS and / or CSI-IM opportunity used for interference measurement is for (one / all / each) resource in a second subset of the resource set. For the description of the second subset, see above.

[0288] ■ Optionally, the CSI-RS transmission opportunity is no later than the CSI reference resource. For example, the CSI-RS transmission opportunity is a CSI-RS transmission opportunity no later than the CSI reference resource.

[0289] ■ Optionally, the CSI-RS and / or CSI-IM opportunity is not later than the CSI reference resource. For example, the CSI-RS transmission opportunity is a CSI-RS opportunity that is not later than the CSI reference resource and / or the CSI-IM transmission opportunity is a CSI-IM transmission opportunity that is not later than the CSI reference resource.

[0290] When the first time domain resource is an SBFD time domain resource and a non-SBFD time domain resource, at least one CSI-RS transmission opportunity for channel measurement and / or one CSI-RS and / or CSI-IM opportunity for interference measurement is received in the SBFD time domain resource, and at least one CSI-RS transmission opportunity for channel measurement and / or one CSI-RS and / or CSI-IM opportunity for interference measurement is received in the non-SBFD time domain resource;

[0291] ■ Optionally, the CSI-RS transmission opportunity for channel measurement is for (one / all / each) resource in the resource set.

[0292] ■ The CSI-RS transmission opportunity for channel measurement in the SBFD time domain resources is for (one / all / each) resource in the first subset of the resource set. For the description of the first subset, see above.

[0293] ■ The CSI-RS transmission opportunity for channel measurement in the non-SBFD time domain resources is for (one / all / each) resource in the second subset of the resource set. For the description of the second subset, see above.

[0294] ■ Optionally, the CSI-RS and / or CSI-IM opportunity used for interference measurement is for (one / all / each) resource in the resource set; the CSI-RS and / or CSI-IM opportunity used for interference measurement is for (one / all / each) resource in a second subset of the resource set. For the description of the second subset, see above.

[0295] ■ Optionally, the CSI-RS transmission opportunity is no later than the CSI reference resource. For example, the CSI-RS transmission opportunity is a CSI-RS transmission opportunity no later than the CSI reference resource.

[0296] ■ Optionally, the CSI-RS and / or CSI-IM opportunity is not later than the CSI reference resource. For example, the CSI-RS transmission opportunity is a CSI-RS opportunity that is not later than the CSI reference resource and / or the CSI-IM transmission opportunity is a CSI-IM transmission opportunity that is not later than the CSI reference resource.

[0297] When discontinuous reception (DRX) (e.g., UE DRX) is configured, not enough measurements may be received within the DRX activation time. Correspondingly, due to incomplete measurement information, a meaningful report cannot be generated. Therefore, CSI reporting may not be performed to save uplink transmission resources. The following specifically describes under what conditions the CSI report corresponding to the CSI reporting configuration described in this disclosure should be sent or discarded. Based on the second condition, the UE sends a CSI report or the UE discards the CSI report. When DRX is configured, the CSI-RS and / or CSI-IM opportunities in the second condition refer to the CSI-RS and / or CSI-IM opportunities within the DRX activation time.

[0298] In the case of cell discontinuous transmission (DTX) and / or UE DRX, the CSI report may not receive enough measurements within the cell DTX activation time and / or DRX activation time. Correspondingly, the CSI report cannot generate a meaningful report due to incomplete measurement information. Therefore, such CSI reports may not be fed back to save uplink transmission resources. The following specifically describes under what conditions the CSI report corresponding to the CSI reporting configuration described in this disclosure should be sent or discarded. Optionally, when the third condition is met, the UE sends the CSI report; otherwise, the UE discards the CSI report. The third condition includes at least one of the following:

[0299] ●The reporting quantity corresponding to the CSI reporting configuration includes RI;

[0300] ● The cell DTX of the serving cell where the CSI reporting configuration is located is activated and / or the cell DTX is configured;

[0301] The cell DTX of the serving cell where the CSI resource setting associated with the CSI reporting configuration (e.g., CSI-ResourceConfig) is located is activated and / or the cell DTX is configured;

[0302] The cell DTX of the serving cell where the resource for measurement corresponding to the CSI reporting configuration is located is activated and / or configured;

[0303] The cell DTX of the serving cell where the resources for channel measurement (and / or interference measurement) corresponding to the CSI reporting configuration are located is activated and / or configured;

[0304] DRX is configured;

[0305] After the CSI report (re)configuration, serving cell activation, BWP change, or activation of SP-CSI;

[0306] When the first time domain resource is an SBFD time domain resource, at least one CSI-RS transmission opportunity for channel measurement and / or one CSI-RS and / or CSI-IM opportunity for interference measurement is received within the SBFD time domain resource (and within the DRX activation time and / or the cell DRX activation time);

[0307] ■ Optionally, the CSI-RS transmission opportunity for channel measurement is for (one / all / each) resource in the resource set; or, the CSI-RS transmission opportunity for channel measurement is for (one / all / each) resource in a first subset of the resource set. For the description of the first subset, see above.

[0308] ■ Optionally, the CSI-RS and / or CSI-IM opportunity used for interference measurement is for (one / all / each) resource in the resource set; the CSI-RS and / or CSI-IM opportunity used for interference measurement is for (one / all / each) resource in a first subset of the resource set. For the description of the first subset, see above.

[0309] ■ Optionally, the CSI-RS transmission opportunity is no later than the CSI reference resource. For example, the CSI-RS transmission opportunity is a CSI-RS transmission opportunity no later than the CSI reference resource.

[0310] ■ Optionally, the CSI-RS and / or CSI-IM opportunity is not later than the CSI reference resource. For example, the CSI-RS transmission opportunity is a CSI-RS opportunity that is not later than the CSI reference resource and / or the CSI-IM transmission opportunity is a CSI-IM transmission opportunity that is not later than the CSI reference resource.

[0311] When the first time domain resource is a non-SBFD time domain resource, at least one CSI-RS transmission opportunity for channel measurement and / or one CSI-RS and / or CSI-IM opportunity for interference measurement is received within the non-SBFD time domain resource (and within the DRX activation time and / or the cell DRX activation time);

[0312] ■ Optionally, the CSI-RS transmission opportunity for channel measurement is for (one / all / each) resource in the resource set; or, the CSI-RS transmission opportunity for channel measurement is for (one / all / each) resource in a second subset of the resource set. For the description of the second subset, see above.

[0313] ■ Optionally, the CSI-RS and / or CSI-IM opportunity used for interference measurement is for (one / all / each) resource in the resource set; the CSI-RS and / or CSI-IM opportunity used for interference measurement is for (one / all / each) resource in a second subset of the resource set. For the description of the second subset, see above.

[0314] ■ Optionally, the CSI-RS transmission opportunity is no later than the CSI reference resource. For example, the CSI-RS transmission opportunity is a CSI-RS transmission opportunity no later than the CSI reference resource.

[0315] ■ Optionally, the CSI-RS and / or CSI-IM opportunity is not later than the CSI reference resource. For example, the CSI-RS transmission opportunity is a CSI-RS opportunity that is not later than the CSI reference resource and / or the CSI-IM transmission opportunity is a CSI-IM transmission opportunity that is not later than the CSI reference resource.

[0316] When the first time domain resource is an SBFD time domain resource and a non-SBFD time domain resource, at least one CSI-RS transmission opportunity for channel measurement and / or one CSI-RS and / or CSI-IM opportunity for interference measurement is received within the SBFD time domain resource (and within the DRX activation time and / or the cell DRX activation time), and at least one CSI-RS transmission opportunity for channel measurement and / or one CSI-RS and / or CSI-IM opportunity for interference measurement is received within the non-SBFD time domain resource (and within the DRX activation time and / or the cell DRX activation time);

[0317] ■ Optionally, the CSI-RS transmission opportunity for channel measurement is for (one / all / each) resource in the resource set.

[0318] ■ The CSI-RS transmission opportunity for channel measurement in the SBFD time domain resources is for (one / all / each) resource in the first subset of the resource set. For the description of the first subset, see above.

[0319] ■ The CSI-RS transmission opportunity for channel measurement in the non-SBFD time domain resources is for (one / all / each) resource in the second subset of the resource set. For the description of the second subset, see above.

[0320] ■ Optionally, the CSI-RS and / or CSI-IM opportunity used for interference measurement is for (one / all / each) resource in the resource set; the CSI-RS and / or CSI-IM opportunity used for interference measurement is for (one / all / each) resource in a second subset of the resource set. For the description of the second subset, see above.

[0321] ■ Optionally, the CSI-RS transmission opportunity is no later than the CSI reference resource. For example, the CSI-RS transmission opportunity is a CSI-RS transmission opportunity no later than the CSI reference resource.

[0322] ■ Optionally, the CSI-RS and / or CSI-IM opportunity is not later than the CSI reference resource. For example, the CSI-RS transmission opportunity is a CSI-RS opportunity that is not later than the CSI reference resource and / or the CSI-IM transmission opportunity is a CSI-IM transmission opportunity that is not later than the CSI reference resource.

[0323] The above method (for example, the method related to operation 3) can prevent the UE from reporting CSI when it does not obtain enough measurements in the first time domain resources, thereby ensuring the accuracy of the reported CSI and improving the efficiency of the communication system.

[0324] In some cases, when the reference signal associated with the CSI resource setting associated with the CSI reporting configuration (for example, corresponding to at least one of operations 1, 2, and 3) is a semi-persistent or periodic reference signal, the reference signal is associated with a period. For example, when the reference signal is a semi-persistent or periodic reference signal, the reference signal can be associated with / configured with a period and an offset parameter (for example, periodicityAndOffset) for indicating the period of the reference signal. Optionally, the periods corresponding to all resources in a resource set are equal. Optionally, the period corresponding to the reference signal is equal to the period associated with the SBFD time domain resource. Optionally, the period corresponding to the reference signal is a multiple of the period associated with the SBFD time domain resource. The period corresponding to the reference signal is a positive integer multiple of the period associated with the SBFD time domain resource. Limiting the period corresponding to the reference signal allows the transmission opportunity corresponding to the reference signal to appear only in the SBFD time domain resource or the non-SBFD time domain resource, so that the UE averages the measurement results corresponding to multiple measurement opportunities of the same reference signal, thereby improving the accuracy of the CSI.

[0325] In some cases, the time domain position of the CSI reference resource associated with / corresponding to the CSI reporting configuration corresponding to the CSI reporting is determined based on a valid downlink time slot. For example, in the time domain, for periodic or semi-continuous CSI reporting, the UE can determine the CSI reference resource (the valid downlink time slot) based on the number of CSI-RS / SSB resources used for channel measurement. For example, in the time domain, for non-periodic CSI reporting, the UE can determine the CSI reference resource (the valid downlink time slot) based on the time domain position of the CSI request that triggers the non-periodic CSI reporting. The method for the UE to determine the valid downlink time slot based on the SBFD configuration is further described below. In the present disclosure, the term "valid downlink time slot" can be interchangeable with the term "valid time slot". For example, when the fourth condition is met, a first time slot for / in the second cell can be considered to be a valid downlink time slot (a valid downlink slot). Optionally, the second cell is a serving cell. Optionally, the second cell may be at least one of: an SBFD cell, a cell in the same frequency band as the SBFD cell, a cell where CSI resources are set, and a cell where CSI reporting configuration is located. Optionally, the fourth condition includes at least one of the following:

[0326] The first time slot is not within a measurement gap configured for the UE;

[0327] ● The first time slot includes at least one downlink symbol or flexible symbol configured by a higher layer;

[0328] • a first time slot comprising at least one symbol in a first time domain resource;

[0329] The first time domain resource is an SBFD time domain resource, and the first time slot includes at least one symbol in the first time domain resource;

[0330] The first time domain resource is a non-SBFD time domain resource, and the first time slot includes at least one symbol in the first time domain resource;

[0331] The first time domain resource is an SBFD time domain resource, and the first time slot includes at least one symbol in the first time domain resource; or the first time domain resource is a non-SBFD time domain resource, and

[0332] The first time slot includes at least one symbol in the first time domain resource, and the first time slot includes at least one downlink symbol or flexible symbol configured by a higher layer; or the first time domain resource is an SBFD time domain resource and a non-SBFD time domain resource, and the first time slot includes at least one downlink symbol or flexible symbol configured by a higher layer;

[0333] ●The first time domain resource is an SBFD time domain resource, and the first time slot only includes symbols in the first time domain resource; or, the first time domain resource is a non-SBFD time domain resource, and the first time slot only includes symbols in the first time domain resource, and the first time slot includes at least one downlink symbol or flexible symbol configured by a higher layer; or, the first time domain resource is an SBFD time domain resource and a non-SBFD time domain resource, and the first time slot includes at least one downlink symbol or flexible symbol configured by a higher layer.

[0334] The above method can determine the CSI reference resources corresponding to CSI reporting based on SBFD time domain resources, so that the UE can measure SBFD time domain resources and / or non-SBFD time domain resources to obtain a reference for CSI measurement in the corresponding time domain resources, thereby improving the accuracy of CSI.

[0335] In some cases, the reporting quantity parameter (e.g., reportQuantity) corresponding to (or configured for) the CSI reporting configuration (e.g., corresponding to at least one of operations 1, 2, and 3) may include at least 'RI'. For example, when the reporting quantity parameter (e.g., reportQuantity) corresponding to (or configured for) the CSI reporting configuration includes at least 'RI', the UE performs at least one of operations 1, 2, and 3 based on the first time domain resources. In the present disclosure, the term "the reporting quantity parameter corresponding to (or configured for) the CSI reporting configuration may include at least 'RI'" may be used interchangeably with the term "CSI includes at least RI." For example, the reporting quantity parameter (e.g., reportQuantity) corresponding to (or configured for) the CSI reporting configuration is set to at least one of cri-RI-PMI-CQI, cri-RI-LI-PMI-CQI, cri-RI-i1, cri-RI-i1-CQI, and cri-RI-CQI. For example, the reporting quantity parameter (e.g., reportQuantity) corresponding to the (or configured) CSI reporting configuration is set to at least one of cri-RI-PMI-CQI, cri-RI-LI-PMI-CQI, cri-RI-i1-CQI, and cri-RI-CQI. Adding conditions related to RI here allows the CSI report to be configured to report RI, which can limit the CSI report to be used for CSI / CQI calculation. Since the calculation of CSI / CQI requires accurate CSI information, distinguishing between SBFD time domain resources and non-SBFD time domain resources and then performing corresponding CSI-related operations can improve the accuracy of the CSI obtained by the UE and improve the efficiency of the communication system.

[0336] The present disclosure provides several methods to enable a UE to perform CSI-related operations based on SBFD configuration information, so that the UE / base station can obtain CSI for SBFD, thereby improving the flexibility of CSI reporting.

[0337] Figure 6 FIG. 6 shows a structure 600 of a user equipment according to an embodiment of the present disclosure. Figure 6 As shown, the user equipment 600 includes a controller 610 and a transceiver 620, wherein the controller 610 is configured to execute the various methods performed by the user equipment disclosed herein, and the transceiver 620 is configured to transmit and receive channels or signals.

[0338] Figure 7 FIG. 7 shows a structure 700 of a base station according to an embodiment 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 the various methods performed by the network device disclosed herein, and the transceiver 720 is configured to transmit and receive channels or signals.

[0339] 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 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", "and", or "and / or".

[0340] In some embodiments, the contents described in brackets “()” in the present disclosure may be optional contents.

[0341] In the present disclosure, the downlink channel / downlink signal that overlaps with frequency domain resources other than the downlink subband associated with the SBFD frequency domain resources may refer to: the downlink channel / downlink signal that overlaps with the uplink subband and / or guard band associated with the SBFD frequency domain resources, or the downlink channel / downlink signal overlaps with the uplink subband and / or guard band associated with the SBFD frequency domain resources, or the downlink channel / downlink signal overlaps with frequency domain resources other than the downlink subband associated with the SBFD frequency domain resources, or at least one PRB / RE of the downlink channel / downlink signal overlaps only with frequency domain resources other than the downlink subband associated with the SBFD frequency domain resources, or at least one PRB / RE of the downlink channel / downlink signal does not overlap with the downlink subband associated with the SBFD frequency domain resources.

[0342] In the present disclosure, the downlink channel / downlink signal overlapping with the downlink subband associated with the SBFD frequency domain resources may mean that all / each PRB / RE of the downlink channel / downlink signal overlaps with the downlink subband associated with the SBFD frequency domain resources, or all / each PRB / RE of the downlink channel / downlink signal does not overlap with frequency domain resources other than the downlink subband associated with the SBFD frequency domain resources.

[0343] In the present disclosure, the uplink channel / uplink signal that overlaps with frequency domain resources other than the uplink subband associated with the SBFD frequency domain resources may refer to: the uplink channel / uplink signal that overlaps with the downlink subband and / or guard band associated with the SBFD frequency domain resources, or the uplink channel / uplink signal overlaps with the downlink subband and / or guard band associated with the SBFD frequency domain resources, or the uplink channel / uplink signal overlaps with frequency domain resources other than the uplink subband associated with the SBFD frequency domain resources, or at least one PRB / RE of the uplink channel / uplink signal overlaps only with frequency domain resources other than the uplink subband associated with the SBFD frequency domain resources, or at least one PRB / RE of the uplink channel / uplink signal does not overlap with the uplink subband associated with the SBFD frequency domain resources.

[0344] In the present disclosure, the uplink channel / uplink signal overlapping with the uplink subband associated with the SBFD frequency domain resources may mean that all / each PRB / RE of the uplink channel / uplink signal overlaps with the uplink subband associated with the SBFD frequency domain resources, or all / each PRB / RE of the uplink channel / uplink signal does not overlap with the frequency domain resources other than the uplink subband associated with the SBFD frequency domain resources.

[0345] In some cases, the UE may perform at least one of the following operations on the signal and / or channel.

[0346] ● Operation 1: Operation related to SBFD. Optionally, operation 1 is an operation related to SBFD for downlink channels / downlink signals. Optionally, operation 1 is an operation related to SBFD that limits UE reception. Optionally, the UE does not receive (or discards, or does not monitor) downlink channels / downlink signals that overlap with frequency domain resources other than the downlink subband associated with the SBFD frequency domain resources.

[0347] Optionally, in the SBFD time domain resources, if a downlink channel / downlink signal overlaps with frequency domain resources other than the downlink subband associated with the SBFD frequency domain resources, the UE does not receive the downlink channel / downlink signal, or the UE discards the reception of the downlink channel / downlink signal. Optionally, in the SBFD time domain resources, if the UE receives a downlink channel / downlink signal

[0348] / downlink signal, and the downlink channel / downlink signal overlaps with frequency domain resources other than the downlink subband associated with the SBFD frequency domain resource, the UE does not receive the downlink channel / downlink signal, or the UE discards the reception of the downlink channel / downlink signal. Optionally, the downlink channel can be at least one of PDSCH and PDCCH. Optionally, PDSCH can be SPS

[0349] (semi-persistent scheduling) at least one of a PDSCH or a PDSCH without a corresponding PDCCH or a PDSCH without an associated DCI format. Optionally, the PDSCH without a corresponding PDCCH may be a PDSCH transmitted without a corresponding PDCCH.

[0350] Optionally, the downlink signal may be at least one of CSI-RS, SSB, and a reference signal for positioning. Optionally, the downlink signal may be at least one of periodic CSI-RS and semi-persistent CSI-RS. For example, in the SBFD time domain resource, the UE will receive an SPS PDSCH.

[0351] (or, a PDSCH without a corresponding PDCCH), and the SPS PDSCH (or, a PDSCH without a corresponding PDCCH) overlaps with frequency domain resources other than the downlink subband associated with the SBFD frequency domain resources, the UE does not receive the SPS PDSCH (or, a PDSCH without a corresponding PDCCH), or the UE discards the SPS PDSCH (or, a PDSCH without a corresponding PDCCH). For example, in the SBFD time domain resources, if a CORESET associated with a search space set overlaps with frequency domain resources other than the downlink subband associated with the SBFD frequency domain resources, the UE does not monitor the PDCCH on the search space, or the UE does not monitor the PDCCH candidate on the search space. Optionally, the frequency domain resources may be one or more PRBs / REs /

[0352] Optionally, the time domain resource may be one or more time slots, or,

[0353] One or more symbols. Optionally, the downlink channel / downlink signal overlaps with the frequency domain resources, which may be: the resources of the downlink channel / downlink signal overlap with the frequency domain resources. Optionally, the PDSCH may be a repetition of the PDSCH. Optionally, the SPS PDSCH may be a repetition of the SPSPDSCH. Optionally, the PDSCH without a corresponding PDCCH may be a repetition of the PDSCH without a corresponding PDCCH. When (part of / all of) the downlink signal / downlink channel is outside the downlink sub-band associated with the SBFD frequency domain resource, the downlink signal / downlink channel may be overlapped with the frequency domain resources.

[0354] The downlink channel may not be sent by the base station. Therefore, accordingly, the UE does not receive or discards the downlink signal / downlink channel, which can avoid the UE's subsequent processing of the downlink signal / downlink channel, saving the UE's energy consumption and improving the efficiency of the communication system.

[0355] ● Operation 2: Operations related to SBFD. Optionally, operations related to SBFD for uplink channels / uplink signals. Optionally, operations related to SBFD that restrict UE transmission.

[0356] Optionally, the UE does not send an uplink channel / uplink signal that overlaps with a frequency domain resource other than an uplink subband associated with the SBFD frequency domain resource, or the UE discards (or cancels, or

[0357] Optionally, in the SBFD time domain resources, if an uplink channel / uplink signal overlaps with frequency domain resources other than the uplink subband associated with the SBFD frequency domain resources, the UE does not send the uplink channel / uplink signal, or the UE discards / cancels / postpones the sending of the uplink channel / uplink signal. Optionally, in the SBFD time domain resources, if the UE is about to send an uplink channel / uplink signal, and the uplink channel / uplink signal overlaps with frequency domain resources other than the uplink subband associated with the SBFD frequency domain resources, the UE does not send the uplink channel / uplink signal, or the UE discards (or cancels, or postpones) the sending of the uplink channel / uplink signal. Optionally, the uplink channel may be at least one of PUSCH and PUCCH. Optionally, the PUSCH may be at least one of a configured grant PUSCH, a PUSCH without a corresponding PDCCH, or a PUSCH without an associated DCI format. Optionally, the PUSCH without a corresponding PDCCH may be a PUSCH transmitted without a corresponding PDCCH. Optionally, the uplink signal may be at least one of an SRS, an SSB, and a PRACH. Optionally, the uplink signal may be at least one of a periodic SRS and a semi-persistent SRS. For example, in the SBFD time domain resources, the UE will receive a configuration grant PUSCH (or, a PUSCH without a corresponding PDCCH), and the configuration grant PUSCH (or, a PUSCH without a corresponding PDCCH) overlaps with frequency domain resources other than the uplink subband associated with the SBFD frequency domain resources, then the UE does not send the configuration grant PUSCH (or, the PUSCH without a corresponding PDCCH), or the UE discards (or, cancels, or postpones) the transmission of the configuration grant PUSCH (or, the PDUCH without a corresponding PDCCH). For example, in the SBFD time domain resources, if the PUCCH overlaps with frequency domain resources other than the uplink subband associated with the SBFD frequency domain resources, then the UE does not send the PUCCH, or the UE discards (or, cancels, or postpones) the transmission of the configuration grant PUCCH. Optionally, after resolving the overlapping PUCCH and / or PUSCH transmissions ( after resolving the overlapping for PUCCH and / or PUSCH transmissions ), and, in the SBFD time domain resources, a PUCCH overlaps with the frequency domain resources outside the uplink subband associated with the SBFD frequency domain resources, (and the PUCCH does not include / is not multiplexed with HAQR-ACK information), then the UE does not send the PUCCH, or the UE discards (or cancels, or postpones) the transmission of the PUCCH. Optionally, after resolving the overlapping PUCCH and / or PUSCH transmissions ( after resolving the overlapping for PUCCH and / or PUSCH transmissions ), and, in the SBFD time domain resources, a PUSCH overlaps with frequency domain resources other than the uplink subband associated with the SBFD frequency domain resources, (and the PUSCH does not include / is not multiplexed with HAQR-ACK information and / or the PUSCH has no corresponding PDCCH,) then the UE does not send the PUSCH, or the UE discards (or cancels, or postpones) the transmission of the PUSCH. Optionally, the frequency domain resources may be at least one of PRB, RE, and subband. Optionally, the time domain resources may be one or more time slots, or one or more symbols. Optionally, the uplink channel / uplink signal overlapping with the frequency domain resources may be: the resources of the uplink channel / uplink signal overlapping with the frequency domain resources. Optionally, the PUSCH may be a repetition of the PUSCH. Optionally, the configured granted PUSCH may be a repetition of the configured granted PUSCH. Optionally, the PUSCH without a corresponding PDCCH may be a repetition of the PUSCH without a corresponding PDCCH. When (part of / all of) the uplink signal / uplink channel is outside the uplink subband associated with the SBFD frequency domain resource, the uplink signal / uplink channel cannot be sent by the base station. Therefore, the corresponding UE does not send / discard / cancel / postpone the uplink signal / uplink channel, which can reduce the UE's processing of the uplink signal / uplink channel, save the UE's energy consumption, and improve the efficiency of the communication system.

[0358] Optionally, the UE multiplexes UCIs with the same priority index in a PUCCH or a PUSCH before / after considering limitations for UE transmission due to SBFD-related operation. This method clarifies the sequential relationship between UCI multiplexing and SBFD-related operations (e.g., operation 2), allowing the base station and UE to have the same understanding of the UCI multiplexing results, thereby improving the reliability of the communication system.

[0359] In some cases, if the UE is configured to receive SPS PDSCH, and the UE multiplexes the HARQ-ACK information for the reception of an activated SPS PDSCH, the UE generates a HARQ-ACK information bit associated with the reception of a specific SPS PDSCH on the PUCCH. Optionally, a HARQ-ACK information bit associated with the reception of the specific SPS PDSCH is added to the PUCCH. ACKHARQ-ACK information bits are followed. Optionally, the specific SPS PDSCH includes an SPS PDSCH associated with the corresponding activated DCI. Optionally, the PUCCH is on time slot n. Here, HARQ refers to Hybrid Automatic Repeat Request. Here, ACK refers to Acknowledgement. Optionally, the reception of an activated SPS PDSCH provides a transport block with enabled HARQ-ACK information report (one activated SPS PDSCH reception provides transport block with enabled HARQ-ACK information report). Optionally, the PRB / RE of the SPS PDSCH refers to: the PRB / RE of the PDSCH resources corresponding to the SPS PDSCH (for example, the nominal resources of the PDSCH). Optionally, the specific SPS PDSCH can be / can include at least one of the following (or, the specific SPS PDSCH satisfies at least one of the following conditions):

[0360] ● The specific SPS PDSCH is associated with the corresponding activation DCI; or the specific SPS PDSCH includes the SPS PDSCH associated with the corresponding activation DCI;

[0361] ● A specific SPS PDSCH is in the SBFD time domain resources, and all / each (or any one) PRB / RE of the specific SPS PDSCH overlaps (or completely overlaps) with the downlink subband associated with the SBFD frequency domain resources; or, a specific SPS PDSCH is in the SBFD time domain resources, and all / each (or any one) PRB / RE of the specific SPS PDSCH overlaps (or completely overlaps) with the downlink subband associated with the SBFD frequency domain resources.

[0362] Frequency domain resources other than the downlink subband associated with PRB / RE and SBFD frequency domain resources do not overlap;

[0363] Alternatively, the specific SPS PDSCH is in the SBFD time domain resources, and the specific SPS PDSCH does not overlap with frequency domain resources other than the downlink subband associated with the SBFD frequency domain resources;

[0364] ● The specific SPS PDSCH is in the serving cell where the SBFD configuration information is located / indicated;

[0365] The serving cell where the specific SPS PDSCH is located and the serving cell where the SBFD configuration information is located / indicated are in the same frequency band;

[0366] The SPS PDSCH does not overlap with a non-active period of cell DTX for a serving cell of the SPS PDSCH reception if cell DTX is activated for the serving cell.

[0367] Optionally, the specific SPS PDSCH does not include / does not include at least one of the following conditions (or the specific SPS PDSCH does not satisfy at least one of the following conditions):

[0368] SPS PDSCH provides only transport blocks with disabled HARQ-ACK information report.

[0369] The SPS PDSCH is in the SBFD time domain resources, and the specific SPS PDSCH overlaps with frequency domain resources other than the downlink subband associated with the SBFD frequency domain resources;

[0370] The SPS PDSCH is in the serving cell where the SBFD configuration information is located / indicated, and the SPS PDSCH is in the SBFD time domain resources, and the specific SPS PDSCH overlaps with frequency domain resources other than the downlink subband associated with the SBFD frequency domain resources;

[0371] The serving cell where the SPS PDSCH is located and the serving cell where the SBFD configuration information is located / indicated are in the same frequency band, and the SPS PDSCH is in the SBFD time domain resources, and the specific SPS PDSCH overlaps with frequency domain resources other than the downlink subband associated with the SBFD frequency domain resources;

[0372] the SPS PDSCH overlaps with a non-active period of cell DTX of a serving cell of the SPS PDSCH reception if cell DTX is activated for the serving cell.

[0373] Since the SPS PDSCH of the frequency domain resources other than the downlink subband associated with the SBFD frequency domain resources in the SBFD time domain resources is not received by the UE (for example, the SPS PDSCH is not received based on operation 1), the UE does not generate corresponding HARQ-ACK information for the SPS PDSCH, which can save the uplink signaling overhead and improve the efficiency of the communication system.

[0374] In some cases, if the UE is configured to receive SPS PDSCH, and the UE multiplexes the HARQ-ACK information received for multiple activated SPS PDSCHs, the UE generates HARQ-ACK information associated with the reception of a specific SPS PDSCH on the PUCCH. Optionally, one HARQ-ACK information bit associated with the reception of the specific SPS PDSCH is added to the PUCCH. ACK HARQ-ACK information bits. Optionally, the specific SPS PDSCH includes the SPS PDSCH corresponding to the activated DCI. Optionally, the PUCCH is on time slot n. Optionally, the PRB / RE received by the SPS PDSCH refers to: the PRB / RE of the resources of the corresponding PDSCH received by the SPS PDSCH (for example, the nominal resources of the PDSCH). Optionally, the specific SPS PDSCH can be / can include at least one of the following (or, the specific SPS PDSCH satisfies at least one of the following conditions):

[0375] ●Specific SPS PDSCH is associated with the corresponding activated DCI; the specific SPS PDSCH includes the SPSPDSCH associated with the corresponding activated DCI;

[0376] ● A specific SPS PDSCH is in the SBFD time domain resources, and all / each (or any one) PRB / RE of the specific SPS PDSCH overlaps (or completely overlaps) with the downlink subband associated with the SBFD frequency domain resources; or, a specific SPS PDSCH is in the SBFD time domain resources, and all / each (or any one) PRB / RE of the specific SPS PDSCH does not overlap with frequency domain resources other than the downlink subband associated with the SBFD frequency domain resources;

[0377] ● The specific SPS PDSCH is in the serving cell where the SBFD configuration information is located / indicated;

[0378] The serving cell where the specific SPS PDSCH is located and the serving cell where the SBFD configuration information is located / indicated are in the same frequency band;

[0379] the SPS PDSCH does not overlap with a non-active period of cell DTX of a serving cell of the SPS PDSCH reception if cell DTX is activated for the serving cell.

[0380] Optionally, the specific SPS PDSCH does not include / does not include at least one of the following conditions (or the specific SPS PDSCH does not satisfy at least one of the following conditions):

[0381] SPS PDSCH provides only transport blocks with disabled HARQ-ACK information report.

[0382] The SPS PDSCH is in the SBFD time domain resources, and the specific SPS PDSCH overlaps with frequency domain resources other than the downlink subband associated with the SBFD frequency domain resources;

[0383] the SPSPDSCH overlaps with a non-active period of cell DTX of a serving cellof the SPS PDSCH reception if cell DTX is activated for the serving cell.

[0384] Since the SPS PDSCH of the frequency domain resources other than the downlink subband associated with the SBFD frequency domain resources in the SBFD time domain resources is not received by the UE (for example, the SPS PDSCH is not received based on operation 1), the UE does not generate corresponding HARQ-ACK information for the SPS PDSCH, which can save the uplink signaling overhead and improve the efficiency of the communication system.

[0385] In some cases, if more than one PDSCH on a serving cell each without acorresponding PDCCH transmission is in a slot, the UE receives one or more PDSCHs without a corresponding PDCCH. Alternatively, if more than one PDSCH on a serving cell each without acorresponding PDCCH is in a slot, the UE receives one or more PDSCHs without a corresponding PDCCH after resolving the overlap of the SBFD time domain resources (e.g., one or more symbols included in / corresponding to the SBFD time domain resources) in the slot with the frequency domain resources other than the downlink resources of the SBFD frequency domain resources. Here, resolving the overlap of the SBFD time-domain resources (e.g., one or more symbols included in / corresponding to the SBFD time-domain resources) in the time slot with the frequency-domain resources other than the downlink resources of the SBFD frequency-domain resources means that if one / each / any one of the more than one PDSCHs without a corresponding PDCCH is within the SBFD time-domain resources and the PDSCH overlaps with the frequency-domain resources other than the downlink resources of the SBFD frequency-domain resources, the PDSCH is not received. For example, in time slot n, there are PDSCH#1, PDSCH#2, PDSCH#3, and PDSCH#4, and none of these PDSCHs have a corresponding PDCCH. Among these four PDSCHs, PDSCH#2 and PDSCH#3 are in SBFD symbols (for example, symbols indicated by SBFD time domain information), and PDSCH#2 and PDSCH#3 overlap with frequency domain resources other than the downlink resources of the SBFD frequency domain resources, then the UE receives PDSCH#1 and PDSCH#4 (that is, does not receive PDSCH#2 and PDSCH#3). For the PDSCH that needs to be received (for example, PDSCH#1 and PDSCH#4), or for one or more PDSCHs after the overlap is resolved (for example, PDSCH#1 and PDSCH#4), the UE can determine how to receive these PDSCHs based on the UE capabilities and the following steps. Optionally, in this time slot, the steps for the UE to receive one or more PDSCHs without corresponding PDCCHs are as follows:

[0386] ● Step 0: Set j = 0, where j is the number of selected PDSCH(s) for decoding. Q is the set of activated PDSCHs without corresponding PDCCH transmissions within the slot.

[0387] ● Step 1: A UE receives one PDSCH with the lowest configured sps-ConfigIndex within Q, set j = j + 1. Designate the received PDSCH as survivor PDSCH.

[0388] ●Step 2: The survivor PDSCH in step 1 and any other PDSCH(s) overlapping (even partially) with the survivor PDSCH in step 1 are excluded from Q.

[0389] ●Step 3: Repeat step 1 and 2 until Q is empty or j is equal to the number of unicast / multicast PDSCHs in a slot supported by the UE.

[0390] The above method allows the UE to first exclude PDSCHs that do not need to be received based on the SBFD operation (for example, operation 1), and then determine which PDSCHs are received based on the UE capabilities / steps, thereby preventing the UE from receiving PDSCHs that do not need to be received due to the SBFD operation, thereby improving the efficiency of the communication system.

[0391] In some cases, after resolving the overlap of PUCCH and / or PUSCH transmissions ( after resolving the overlapping for PUCCH and / or PUSCH transmissions ), and in the SBFD time domain resources, a PUCCH overlaps with the frequency domain resources outside the uplink subband associated with the SBFD frequency domain resources, the UE discards / cancels / postpones / does not send the PUCCH. In some cases, after resolving the overlap of PUCCH and / or PUSCH transmissions ( after resolving the overlapping for PUCCH and / or PUSCH transmissions ), and in the SBFD time-domain resources, if a PUSCH without a corresponding PDCCH overlaps with frequency-domain resources outside the uplink subband associated with the SBFD frequency-domain resources, the UE discards / cancels / defers / does not transmit the PUSCH. This method can clearly resolve PUCCH and / or PUSCH overlap and determine the order of uplink channel / uplink signal transmission based on SBFD operations (e.g., operation 2). This ensures that the UE and base station have a unified understanding of the actual uplink signals / uplink channels being transmitted, thereby improving the reliability of the communication system.

[0392] In some cases, the UE may receive / be configured with a CSI reporting configuration. Optionally, a reporting quantity parameter (e.g., reportQuantity) associated with the CSI reporting configuration is not set to "none." Optionally, the UE determines CSI and / or reports CSI and / or reports CSI based on the CSI reporting configuration.

[0393] ● Optionally, the UE determines the CSI and / or reports the CSI based on the reference signal resources associated with the CSI reporting configuration. Optionally, the reference signal resources associated with the CSI reporting configuration refer to: resources in a reference signal resource set for channel measurement indicated / configured / corresponding to the CSI reporting configuration, and / or resources in a reference signal resource set for interference measurement indicated / configured / corresponding to the CSI reporting configuration, and / or reference signal resources for link quality assess. Optionally, the size of the reference signal resource set for channel measurement is denoted as K (K≥1). Optionally, the reference signal resource may be an SSB resource or a CSI-RS resource. Optionally, in the case where the reference signal resource is a CSI-RS resource, the reference signal resource or the reference signal resource set is periodic / semi-persistent.

[0394] ● Optionally, the UE may be configured with higher-layer parameters related to the TCI state (e.g., dl-OrJointTCI-StateList). Optionally, the higher-layer parameters related to the TCI state (e.g., dl-OrJointTCI-StateList) are in the higher-layer parameter PDSCH-Config. Optionally, the higher-layer parameters related to the TCI state (e.g., dl-OrJointTCI-StateList) are for providing a reference signal for the quasi co-location for DM-RS of PDSCH and DM-RS of PDCCH in a BWP / CC, for CSI-RS, and to provide a reference, if applicable, for determining UL TX spatial filter. Optionally, the uplink transmit spatial filter is for dynamic-grant and configured-grant based PUSCH and PUCCH resource,and SRS. Optionally, the UE receives / applies an indication of a TCI state. Optionally, the UE receives / applies / has an indicated TCI state. Optionally, the UE applies / uses the indicated TCI state after receiving TCI state indication information. Optionally, the reference signal associated / corresponding to the indicated TCI state is an SSB quasi-colocated with the QCL (quasi-colocation) reference signal of the indicated TCI state, or the reference signal associated / corresponding / included by the indicated TCI state is a QCL (quasi-colocation) reference signal of the indicated TCI state. Optionally, if a TCI state is associated / includes / corresponds to two QCL reference signals, the reference signal associated / corresponding / included by the TCI state is the QCL type D reference signal included / corresponding to the TCI state. Optionally, if the resources in the resource set are SSB resources, the reference signal associated with / corresponding to the indicated TCI state is an SSB quasi-colocated with the QCL (quasi-colocation) reference signal of the indicated TCI state.Optionally, if the resources in the resource set are CSI-RS resources, the reference signal associated with / corresponding to the indicated TCI state is a QCL (quasi-colocation) reference signal associated with / corresponding to / included in the indicated TCI state, where the reference signal is a CSI-RS. Optionally, the indicated TCI state may be an indicated unified TCI state.

[0395] ●Optionally, the UE sends a first uplink channel or a first uplink signal. Optionally, the first uplink channel may be one of PUCCH, PUSCH, and PRACH. Optionally, the first uplink signal may be one of SRS, DM-RS (demodulation reference signal) of PUSCH, and DM-RS of PUSCH. Optionally, the first uplink channel or the first uplink signal indicates / notifies a second uplink channel carrying CSI reporting. Optionally, the second uplink channel is determined based on the first uplink channel / first uplink signal. Optionally, the service cell (or component carrier) where the second uplink channel is located is determined based on the first uplink channel / first uplink signal. Optionally, the time slot (e.g., the starting time slot) where the second uplink channel is located and / or the starting symbol (of each time slot in the time slot where the second uplink channel is located) are determined based on the first uplink channel / first uplink signal. Optionally, the second uplink channel may be PUSCH or PUCCH.

[0396] ■Optionally, the first uplink channel or the first uplink signal is triggered based on a resource set (e.g., a resource set for channel measurement associated with the CSI reporting configuration) and / or an indicated TCI state. Optionally, the first uplink channel or the first uplink signal is triggered based on a reference signal associated with / corresponding to a resource in the resource set and / or a reference signal associated with / corresponding to an indicated TCI state. Optionally, the first uplink channel or the first uplink signal is triggered based on a difference between an L1-RSRP measurement corresponding to an L1-RSRP measurement associated with / corresponding to a reference signal in the resource set and / or an L1-RSRP measurement corresponding to a reference signal associated with / corresponding to an indicated TCI state being greater than or equal to an RRC-configured threshold. For example, if the RRC-configured threshold is 6 dB, and the L1-RSRP corresponding to CSI-RS#1 in the measured resource set is 7 dB higher than the L1-RSRP corresponding to the reference signal associated with / corresponding to the TCI state, the first uplink channel or the first uplink signal may be triggered. Optionally, the UE applies the threshold to the scaled L1-RSRP measurement. Optionally, if the reference signal associated with the TCI state is of a different type from the reference signal in the resource set, the UE applies the threshold value in the scaled L1-RSRP measurement. If one reference signal is an SSB and the other reference signal is a CSI-RS, the two reference signals may be considered to be of different types. Optionally, the scaled L1-RSRP measurement refers to the L1-RSRP measurement after the received power of the CSI-RS is scaled using the power offset parameter (e.g., powerControlOffsetSS) configured for the corresponding CSI-RS resource. Optionally, scaling the received power of the CSI-RS refers to subtracting the value corresponding to powerControlOffsetSS from the L1-RSRP corresponding to the CSI-RS. For example, the threshold configured by RRC is 6dB, and the L1-RSRP corresponding to SSB#1 in the measurement resource set is 4dB higher than the L1-RSRP corresponding to the CSI-RS associated with / corresponding to the TCI state. In this case, the L1-RSRP corresponding to the CSI-RS needs to be scaled according to powerControlOffsetSS (e.g., 3dB). After scaling, the L1-RSRP corresponding to SSB#1 is 7dB higher than the L1-RSRP corresponding to the CSI-RS associated with / corresponding to the TCI state, exceeding the threshold. Therefore, the first uplink channel or first uplink signal can be triggered. This method can achieve the same transmit power for CSI-RS and SSB when comparing L1-RSRP between different reference signals (e.g., CSI-RS and SSB) through corresponding scaling operations, thereby ensuring the accuracy of the comparison results and improving the reliability of the communication system.

[0397] ■ Optionally, the first uplink channel or the first uplink signal is sent when at least one of the following conditions is met:

[0398] ◆Condition 1: The latest (earlier than / not later than the first uplink channel or the first uplink signal) continuous Y win In each measurement window (or Y win The difference between the L1-RSRP measurement corresponding to at least A1 identical reference signals in the resource set (in each transmission opportunity of the TCI state) and the L1-RSRP measurement corresponding to the reference signal associated with / corresponding to the indicated TCI state is greater than or equal to T_thr. win and / or T_thr is RRC configured. Optionally, Y win is predefined (e.g., Y win is 1 or 2). Optionally, the indicated TCI state refers to the indicated TCI state used / applied by the first uplink channel or the timeslot in which the first uplink signal is located. Optionally, A1 can be an integer greater than or equal to 1. Optionally, A1 can be predefined or determined based on the configuration / instruction of the base station. Optionally, A1 can be based on the UE capabilities.

[0399] ◆Condition 2: The latest (X_eva symbol is earlier than the first symbol of the first uplink channel or the first uplink signal) continuous Y win In each measurement window (or Y win The difference between the L1-RSRP measurement corresponding to at least A1 identical reference signals in the resource set (in each transmission opportunity of the TCI state) and the L1-RSRP measurement corresponding to the reference signal associated with / corresponding to the indicated TCI state is greater than or equal to T_thr. win and / or T_thr is RRC configured.

[0400] Optionally, Y win is predefined (e.g., Y win is 1 or 2). Optionally, X_eva can be RRC configured, or predefined, or based on UE capabilities. Optionally, the indicated TCI state refers to the indicated TCI state used / applied for the first uplink channel or the time slot where the first uplink signal is located. Optionally, A2 can be an integer greater than or equal to 1. Optionally, A1 can be predefined, or determined based on the configuration / indication of the base station. Optionally, A1 can be based on UE capabilities.

[0401] The indicated TCI state used to determine the triggering / transmission of the first uplink channel (or, first uplink signal) must be clear. The indicated TCI state may vary at different time points. Therefore, it is necessary to clarify the time point at which the reported indicated TCI state-related information is based on / for the indicated TCI state.

[0402] Optionally, the indicated TCI state used to determine the triggering / transmission of the first uplink channel (or, the first uplink signal) may be: the indicated TCI state applied / used / corresponding / associated to the time slot where the first uplink channel / first uplink signal is located. Optionally, the CSI-associated indicated TCI state included in the CSI report on the second uplink channel may be: the indicated TCI state applied / used / corresponding / associated to the time slot before the time slot Q where the first uplink channel / first uplink signal is located. Optionally, Q is configured by the base station. Optionally, Q is predefined. Optionally, Q is based on UE capabilities. Optionally, the value of Q may be at least one of 0, 1, 2, 3, and 4. Optionally, the value of Q may be determined based on the time domain interval (e.g., time domain offset, e.g., time slot offset) between the first uplink channel (or the first uplink signal) and the second uplink channel. For example, Q is an integer multiple (an integer multiple greater than or equal to 1) of the time domain interval between the first uplink channel (or the first uplink signal) and the second uplink channel. Optionally, the value of Q can be determined based on the period of the resources in the resource set. For example, Q is an integer multiple (an integer multiple greater than or equal to 1) of the resource period. The above method clarifies the time point corresponding to the information related to the indicated TCI state for determining the triggering / sending of the first uplink channel (or, the first uplink signal), ensures that the UE and the base station have a consistent understanding of the indicated TCI state, and improves the reliability of the communication system.

[0403] ● Optionally, the UE receives / detects feedback for the first uplink channel (or the first uplink signal). Optionally, the feedback may be one of a PDCCH and a PDSCH. Optionally, the PDCCH corresponds to / is associated with DCI format 0_1 or 0_2.

[0404] ● Optionally, the UE sends a second uplink channel. Optionally, the second uplink channel carries CSI / CSI reporting associated with the CSI reporting configuration.

[0405] ■ Optionally, the time domain position of the second uplink channel is determined based on feedback for the first uplink channel (or the first uplink signal).

[0406] ■ Optionally, the time domain position of the second uplink channel is determined based on the first uplink channel or the first uplink signal. Optionally, the time slot offset between the second uplink channel and the first uplink channel / first uplink signal is predefined, or is indicated by the base station, or is based on UE capabilities. For example, the time slot offset is configured in the CSI reporting configuration.

[0407] ■ Optionally, the UE is not expected to measure channel / interference on the CSI-RS / SSB. Optionally, the last symbol of the CSI-RS / SSB is received up to Z symbols before transmission time of the first symbol of the CSI reporting on the second UL channel.

[0408] ■ Optionally, the UE may be instructed by the base station whether to report the reference signal information (e.g., CRI / SSBRI) and / or the corresponding L1-RSRP associated with the indicated TCI state. Optionally, when the UE is instructed to report the reference signal information associated with the indicated TCI state, the UE reports the CSI associated with the reference signal resources associated with the indicated TCI state and / or the resource set used for channel measurement / corresponding reference signal resources in one reporting instance. Optionally, the CSI includes CRI / SSBRI and / or (corresponding) L1-RSRP. Optionally, the size of the CSI domain corresponding to the CRI / SSBRI may be determined based on K. For example, the size of the CSI domain corresponding to the CRI / SSBRI is equal to The value of CRI / SSBRI is denoted as k (k≥0). Optionally, CRI / SSBRI k corresponds to the k+1th resource configured in the resource set. Optionally, when the value of CRI / SSBRI is equal to the size of the resource set (for example, k=K), the CRI / SSBRI corresponds to the reference signal associated with / corresponding to the indicated TCI state (or, the resource corresponding to the reference signal associated with / corresponding to the indicated TCI state). This method clarifies the reporting method of the beam associated with the indicated TCI state, so that the base station can obtain the measurement of the current beam indicated by the UE, facilitate the scheduling of the base station, and enhance the flexibility of the communication system. In addition, since the indicated TCI state may be different at different time points, it is necessary to clarify the indicated TCI state related information reported based on / for which time point the indicated TCI state is. Optionally, the CSI-associated indicated TCI state included in the CSI report on the second uplink channel can be: the indicated TCI state applied / used / corresponding / associated to the time slot where the CSI reference resource corresponding to the CSI report is located. Optionally, the CSI-associated indicated TCI state included in the CSI report on the second uplink channel may be: the indicated TCI state applied / used / corresponding / associated to the time slot where the first uplink channel / first uplink signal is located. Optionally, the CSI-associated indicated TCI state included in the CSI report on the second uplink channel may be: the indicated TCI state applied / used / corresponding / associated to the time slot where the feedback of the first uplink channel / first uplink signal is located; or, the TCI state indicated by the feedback of the first uplink channel / first uplink signal. Optionally, the CSI-associated indicated TCI state included in the CSI report on the second uplink channel may be: the indicated TCI state previously applied / used / corresponding / associated to the first uplink channel / first uplink signal; or, the TCI state indicated by the feedback of the first uplink channel / first uplink signal. The above method clarifies the time point corresponding to the information related to the indicated TCI state associated with the reported CSI, ensures that the UE and the base station have the same understanding of the indicated TCI state, and improves the reliability of the communication system.

[0409] ■ Optionally, the CSI reported on the second uplink channel includes CSI associated with a reference signal resource (e.g., CRI / SSBRI and / or L1-RSRP). Optionally, the reference signal satisfies at least one of the following conditions / characteristics:

[0410] ◆Condition 1 / Feature 1: The latest (earlier than / no later than the first uplink channel or the first uplink signal) continuous Y win In each measurement window (or Y winThe difference between the L1-RSRP measurement corresponding to the reference signal associated with / corresponding to the indicated TCI state and the L1-RSRP measurement corresponding to the reference signal (in each transmission opportunity of the transmission opportunity) is greater than or equal to T_thr. win and / or T_thr is RRC configured. Optionally, Y win is predefined (eg, 1 or 2). Optionally, the indicated TCI state refers to the indicated TCI state used / applied by the first uplink channel or the timeslot where the first uplink signal is located.

[0411] ◆Condition 2 / Feature 2: The most recent (X_eva symbol is earlier than the first symbol of the first uplink channel or the first uplink signal) continuous Y win In each measurement window (or Y win The difference between the L1-RSRP measurement corresponding to the reference signal resource of each transmission opportunity (in each transmission opportunity) and the L1-RSRP measurement corresponding to the resource associated with / corresponding to the indicated TCI state is greater than or equal to T_thr. win and / or T_thr is RRC configured. Optionally, Y win is predefined (e.g., 1 or 2). Optionally, X_eva may be RRC configured or predefined. Optionally, the indicated TCI state refers to the indicated TCI state used / applied by the first uplink channel or the timeslot where the first uplink signal is located.

[0412] The following describes the process / method related to the CPU (CSI processing unit). The UE can indicate the number of parallel CSI calculations supported in a CC (N) through the single component carrier (CC) parallel CSI parameter (e.g., simultaneousCSI-ReportsPerCC). CPU ), and the number of parallel CSI calculations supported in all CCs (N) is indicated by the all-CC parallel CSI parameter (e.g., simultaneousCSI-ReportsAllCC). CPU ). (TheUE indicates the number of supported simultaneous CSI calculations N CPUwithparameter simultaneousCSI-ReportsPerCC in a component carrier,andsimultaneousCSI-ReportsAllCC across all component carriers.)

[0413] UE supports N CPU Parallel CSI calculations means that the UE has N CPU CSI processing units for processing CSI reporting. In one Orthogonal Frequency Division Multiplexing (OFDM) symbol, if L CPUs are occupied for CSI reporting calculation, the UE has N CPU – L unused CPUs. (If a UE supports N CPU simultaneous CSI calculations it is said to have N CPU CSI processing units for processing CSI reports. If L CPUs areoccupied for calculation of CSI reports in a given OFDM symbol, the UE hasN CPU -Lunoccupied CPUs.)

[0414] If N CSI reports start occupying their own CPUs in the same OFDM symbol and there are N CPU – L CPUs are not occupied, each CSI reports n=0,…,N-1 corresponding to O CPU (n), the UE is not required to update the N–M lowest priority (required) CSI reports. Here M refers to the number of CSI reports that meet the conditions 0≤M≤N. the maximum value. (If N CSI reports start occupying their respective CPUs on the same OFDMsymbol on which N CPU -L CPUs are unoccupied,where each CSI reportn=0,…,N-1corresponds to O CPU(n), the UE is not required to update the NM requested CSIreports with lowest priority, where 0≤M≤N is the largest value such that ). Processing of a CSI report (eg, a CSI report corresponding to a CSI reporting configuration) may occupy several CPUs on time domain resources (eg, on some symbols).

[0415] In order for the base station to manage the UE's CSI computation resources, the time domain resources of the CPU (CSI processing unit) occupied by the CSI reporting on the second uplink channel must be clearly defined. The method provided below can clarify the time domain resources of the CPU occupied by the CSI reporting on the second uplink channel, so that the UE and the base station have the same understanding of CPU occupancy, thereby improving the reliability of the communication system. Optionally, the time domain resources occupied by the CPU by the CSI reporting on the second uplink channel can be a number of OFDM symbols or a number of time slots.

[0416] ●Optionally, the time domain resources of the CPU occupied by the CSI report on the second uplink channel can be determined based on at least one of the first uplink channel / first uplink signal, feedback of the first uplink channel / first uplink signal and reference signal resources (for example, reference signal resources in a resource set).

[0417] ■Optionally, if the UE receives or detects feedback of the first uplink channel / first uplink signal, the starting point of the time domain resources occupied by the CPU for the CSI report on the second uplink channel is based on the time resources after the feedback (for example, the first symbol / earliest symbol / first time slot / earliest time slot after the feedback, or the first symbol / earliest symbol / first time slot / earliest time slot after the last symbol of the feedback, or the first symbol / earliest symbol / first time slot / earliest time slot that overlaps with the last symbol of the feedback).

[0418] ■ Optionally, the starting point of the CPU time domain resource occupation for CSI reporting on the second uplink channel can be determined based on the first uplink channel / first uplink signal. Because the base station requires a certain amount of time to decode the first uplink channel / first uplink signal after receiving it, in some cases, the base station may only be aware that the UE will generate / send a CSI report on the second channel after a certain interval from the first uplink channel / first uplink signal. Therefore, CSI reporting must begin occupying the CPU after a certain interval from the first uplink channel / first uplink signal; otherwise, the base station will not be aware of the UE's CPU resource usage. The following method reserves sufficient time for base station demodulation, ensuring that the base station and UE have a consistent understanding of the CPU time occupied by CSI reporting on the second uplink channel, thereby ensuring the reliability of the communication system. Optionally, the CPU is occupied by CSI reporting on the second channel starting from the first symbol X symbols after the last symbol of the first uplink channel / first uplink signal. Here, the "last symbol of the first uplink channel / first uplink signal" is referred to as the "uplink end symbol." The “first symbol / earliest symbol occupied by the CSI report on the second channel” is referred to as the “start symbol of the CPU”.

[0419] ◆Optionally, the CPU start symbol is the first symbol after at least X symbols of the uplink end symbol. Optionally, "the first symbol after at least X symbols of the uplink end symbol" can be called the first reference symbol. Optionally, the subcarrier spacing corresponding to / associated with the first symbol is based on / equal to: the subcarrier spacing of the second uplink channel, or the subcarrier spacing of the first uplink channel, or the larger / smaller subcarrier spacing between the subcarrier spacing of the first uplink channel and the subcarrier spacing of the second uplink channel. Optionally, the subcarrier spacing corresponding to / associated with the X symbols is based on / equal to: the subcarrier spacing of the second uplink channel, or the subcarrier spacing of the first uplink channel, or the larger / smaller subcarrier spacing between the subcarrier spacing of the first uplink channel and the subcarrier spacing of the second uplink channel. Since the first uplink channel and the second uplink channel may be in different CCs, the above method can clearly determine the subcarrier spacing on which the CPU start symbol is based, so that the base station and the UE have the same understanding, thereby improving the reliability of the communication system.

[0420] ◆Optionally, the symbol offset between the CPU start symbol and the uplink end symbol is X symbols. Optionally, "the symbol offset by X symbols from the uplink end symbol" can be referred to as the first reference symbol. For example, if the uplink end symbol is at symbol n, then the CPU start symbol is at symbol n+X. Optionally, the subcarrier spacing corresponding to / associated with at least one of X, symbol n, symbol n+X and the CPU start symbol is based on: the subcarrier spacing of the second uplink channel, or the subcarrier spacing of the first uplink channel, or the larger / smaller subcarrier spacing between the subcarrier spacing of the first uplink channel and the subcarrier spacing of the second uplink channel. Since the first uplink channel and the second uplink channel may be in different CCs, the above method can clearly determine the subcarrier spacing on which the CPU start symbol is based, so that the base station and the UE have the same understanding, thereby improving the reliability of the communication system.

[0421] ◆Optionally, the CPU start symbol is the first / earliest symbol that starts no earlier than symbol n+X (start / end). Optionally, the CPU start symbol is the first / earliest symbol that starts no earlier than symbol n+X+1 (start / end). Optionally, the subcarrier spacing corresponding to / associated with symbol n (and / or symbol n+1 and / or symbol n+X+1 and / or X) is the subcarrier spacing of the first uplink channel. Optionally, "the first / earliest symbol that starts no earlier than symbol n+X (start / end)" or "the first / earliest symbol that starts no earlier than symbol n+X+1 (start / end)" can be referred to as the first reference symbol. Optionally, the subcarrier spacing corresponding to / associated with the CPU start symbol (or, the first / earliest symbol) is the subcarrier spacing of the second uplink channel.

[0422] Optionally, the value of X can be at least one of 1, 2, 4, 7, 14, 28, 42, 56, 70, 84, 98, 112, 224, and 336. Optionally, X can be predefined. Optionally, X can be indicated by the base station. For example, the base station indicates / configures X through CSI reporting. Optionally, when the base station does not configure / indicate X, the value of X is 0. Optionally, X can be based on UE capabilities. For example, X is indicated by reported UE capability signaling.

[0423] ■Optionally, the starting point of the time domain resources occupied by the CSI report on the second uplink channel of the CPU can be determined based on the first uplink channel / first uplink signal and the reference signal resources (for example, the resources in the resource set and / or the associated / corresponding reference signal / reference signal resources of the indicated TCI state). Optionally, the starting point of the time domain resources occupied by the CSI report on the second uplink channel of the CPU can be determined based on the first reference symbol and the second reference symbol. For the description of the first reference symbol, see above. Optionally, the second reference symbol is determined based on the reference signal resources (for example, the resources in the resource set and / or the associated / corresponding reference signal / reference signal resources of the indicated TCI state).

[0424] Optionally, the time domain resources occupied by the CPU for the CSI report on the second uplink channel start from the later / earlier one of the first reference symbol and the second reference symbol. Optionally, the starting symbol of the time domain resources occupied by the CPU for the CSI report on the second uplink channel is the later / earlier one of the first reference symbol and the second reference symbol. This solution takes into account the impact of the reference signal measurement on the CPU occupancy time, so that the UE and the base station have an accurate and identical understanding of the CPU occupancy time carried on the second channel, thereby improving the reliability of the communication system.

[0425] ◆Optionally, the second reference symbol is based on the CSI reference resource corresponding to the CSI report and

[0426] The second reference symbol is determined by the reference signal resource (in the resource set and / or associated with / corresponding to the indicated TCI state). For example, the second reference symbol is the first symbol of the earliest reference signal resource (in the resource set and / or associated with / corresponding to the indicated TCI state) in the most recent transmission opportunity not later than the CSI reference resource. For example, the second reference symbol is the first symbol of the earliest reference signal resource (in the resource set and / or associated with / corresponding to the indicated TCI state) in the most recent transmission opportunity not later than the CSI reference resource. For example, the second reference symbol is the first symbol of the earliest reference signal resource (in the resource set and / or associated with / corresponding to the indicated TCI state) in the most recent transmission opportunity not later than the CSI reference resource.

[0427] The reference signal resource corresponds to the first symbol of the earliest reference signal resource in the most recent transmission opportunity not later than the CSI reference resource (in the resource set and / or the reference signal resource associated with / corresponding to the indicated TCI state).

[0428] ●Optionally, the end point of the time domain resources occupied by the CPU is determined based on the second uplink channel. For example, the CSI report on the second uplink channel occupies the CPU until the last symbol / first symbol of the second uplink channel. For example, the CSI report on the second uplink channel occupies the CPU until the last time slot / first time slot of the second uplink channel. Optionally, the subcarrier spacing corresponding to / associated with the last symbol / first symbol of the second uplink channel is based on / equal to: the subcarrier spacing of the second uplink channel, or the subcarrier spacing of the first uplink channel, or the larger / smaller subcarrier spacing between the subcarrier spacing of the first uplink channel and the subcarrier spacing of the second uplink channel.

[0429] Optionally, the subcarrier spacing of the first uplink channel / first uplink signal refers to the subcarrier spacing of the (activated) uplink BWP that transmits the first uplink channel / first uplink signal. Optionally, the subcarrier spacing of the second uplink channel refers to the subcarrier spacing of the (activated) uplink BWP that transmits the second uplink channel.

[0430] In order for the base station to manage the CSI calculation resources of the UE, the number of CPUs (CSI processing units, channel state information processing units) occupied by the CSI reporting on the second uplink channel needs to be clear. CPU ) is predefined. For example, CPU =1 or 2. Optionally, the number of CPUs occupied by the CSI report on the second uplink channel (for example, CPU ) is based on UE capabilities. For example, CPU =X cap Here, X cap Indicates a parameter related to the number of CPUs occupied by CSI reporting on the second uplink channel. cap Determined based on reported UE capability information. Optionally, X cap The value of can be one of 1, 2, 3, and 4. Optionally, the number of CPUs occupied by the CSI report on the second uplink channel (for example, CPU The method provided above can clearly define the amount of CPU occupied by the CSI report on the second uplink channel, so that the UE and the base station have the same understanding of the CPU occupancy, thereby improving the reliability of the communication system.

[0431] Optionally, the method for determining the second uplink channel (time domain position) is further described below. Optionally, the time domain position of the second uplink channel is determined based on the first uplink channel / first uplink signal (the last symbol) and / or Y. Optionally, Y is based on X. Optionally, Y ≥ X. Optionally, Y and X can be the same parameter. Optionally, Y is RRC configured or predefined. Optionally, the second uplink channel is the closest (e.g., closest in time domain, or closest in time domain to the first uplink channel) uplink channel that meets at least one of the following conditions:

[0432] The serving cell / CC where the second uplink channel is located is a serving cell / CC determined based on the first uplink channel / first uplink signal;

[0433] The offset between the time slot of the second uplink channel and the time slot of the first uplink channel / first uplink signal is greater than or equal to Y; or the symbol offset between the first symbol of the second uplink channel and the last symbol of the first uplink channel / first uplink signal is greater than or equal to Y;

[0434] The timeslot number of the second uplink channel satisfies:

[0435] (N_frame_slot*n_sfn+n_slot-T offset )mod T CSI , where N_frame_slot is the number of time slots in a frame, n_sfn is the system frame number (system frame number), n_slot is the time slot number in a frame, T offset is the time slot offset, T CSI represents periodicity. Optionally, T offset It can be predefined or configured by the base station. CSI It can be predefined or configured by the base station. Optionally, N_frame_slot is the number of time slots in a frame of the subcarrier spacing for the second uplink channel. Optionally, n_slot is the time slot number in a frame of the subcarrier spacing for the second uplink channel;

[0436] ● The second uplink channel does not overlap with the downlink symbol. Optionally, the downlink symbol may be a downlink symbol configured by higher layer signaling;

[0437] ● Optionally, the symbol offset of the second uplink channel in the time slot where the second uplink channel is located is equal to a specific value or equal to one of one or more specific values. Optionally, the symbol offset of the second uplink channel refers to: the symbol offset between the starting symbol of the second uplink channel and the first symbol in the time slot where the second uplink channel is located. Optionally, the value range of the symbol offset is 0 to 13. Optionally, the one or more specific values may be predefined. Optionally, the one or more specific values may be indicated by the base station (for example, configured through CSI reporting configuration).

[0438] The above method can reduce the time interval between the second uplink channel and the first uplink channel / first uplink signal, reduce the delay of uplink transmission, and improve the performance of the communication system.

[0439] The following describes a process / method related to a CSI reference resource (CSI reference resource) corresponding to / associated with CSI reporting (eg, CSI reporting on the second uplink channel).

[0440] The time slot where the CSI report (e.g., the CSI report on the second uplink channel) is located can be the uplink time slot n'. In the time domain, the CSI reference resource (CSI reference resource) corresponding to the CSI report (e.g., the CSI report on the second uplink channel) is defined as: a single downlink time slot Or, downlink time slot nn CSI_ref Here, K offset is a high-level configuration parameter, and is the parameter K offset For FR1 (frequency range 1), The value of is 0. For example, K offset =K cell,offset -K UE,offset , where K cell,offset Can be configured by higher-level parameters (e.g., cellSpecificKoffset) and / or K UE,offset It can be indicated by a MAC-CE command (for example, by indicating the differential K offset MAC-CE indication); if the corresponding parameters are not provided (otherwise, if not respectively provided), then K cell,offset =0or K UE,offset = 0. Here, Among them, μ DL and μ ULThe subcarrier spacing configurations for downlink and uplink, respectively (for cells sending uplink and downlink) and μ offset It is determined based on a parameter configured by a higher layer (eg, ca-SlotOffset). The following specifically describes a method for determining a CSI reference resource (eg, a CSI reference resource corresponding to the CSI report on the second uplink channel).

[0441] Method 1: The CSI reference resource corresponding to the CSI report on the second uplink channel is determined based on the time slot associated with the first uplink channel (or the first uplink signal). Optionally, the CSI reference resource corresponding to the CSI report on the second uplink channel is in the same time slot as the time slot associated with the first uplink channel (or the first uplink signal) (in the same downlink time slot, or in the same valid downlink time slot). Optionally, the time slot associated with the first uplink channel (or the first uplink signal) refers to: a downlink time slot determined based on the uplink time slot where the first uplink channel (or the first uplink signal) is located. Here, the uplink time slot where the first uplink channel (or the first uplink signal) is located can be recorded as uplink time slot n". For example, the time slot associated with the first uplink channel (or the first uplink signal) is: downlink time slot Or, downlink time slot Or, downlink time slot Or, downlink time slot Optionally, K1 may be predefined. Optionally, K1 may be configured by the base station or based on UE capabilities. Optionally, the value of K1 may be one of -2, -1, 0, 1, and 2. In the following, the time slot associated with the first uplink channel (or the first uplink signal) is referred to as the downlink time slot. Optionally, the CSI reference resource corresponding to the CSI report on the second uplink channel is in the downlink time slot Optionally, the UE determines n CSI_ref A specific value of , wherein the specific value makes the downlink time slot where the CSI reference resource is located (for example, a valid downlink time slot) be a downlink time slot Or, for downlink time slots The same (valid) downlink time slot. Optionally, μ UL It can be the subcarrier spacing configuration of the first uplink channel (or, the first uplink signal). DLIt can be a downlink subcarrier spacing configuration. Since CSI reporting is based on measurements no later than those of the CSI reference resources, this method allows the CSI on the second uplink channel to be determined based on measurements on the first uplink channel or before the first uplink channel, preventing channel changes between the first uplink channel and the second uplink channel from affecting the CSI reporting results. This allows the UE and the base station to have the same understanding of the measurements on which the CSI reporting is based, thereby improving the reliability of the communication system.

[0442] Method 2: The CSI reference resource corresponding to the CSI report on the second uplink channel is determined based on parameters related to the delay requirement and / or UE capabilities. Optionally, the time slot where the second uplink channel is located is the uplink time slot n'. Optionally, the time slot associated with the second uplink channel may be the downlink time slot n. Optionally, the time slot corresponding to the CSI reference resource (e.g., the downlink time slot, or the effective downlink time slot) is based on n CSI_ref or nn CSI_ref Optionally, n CSI_ref Can be a value greater than or equal to X ref Optionally, n CSI_ref Can be a value greater than or equal to X ref A minimum / maximum value (eg, an integer value) of that makes the time slot nn CSI_ref Corresponding to a downlink time slot (eg, a valid downlink time slot). Optionally, X ref Based on parameters related to delay requirements (e.g., Z or Z′). Optionally, X ref Based on / equal to a parameter related to the delay requirement (e.g., Z′1 or Z′3). Optionally, X ref Based on / equal to the parameter related to the delay requirement (e.g., Z1 or Z3). The following description is based on the parameter related to the delay requirement being Z′3 as an example. Optionally, Z′3 is based on (reported) UE capabilities (e.g., beamReportTiming). Optionally, X ref Based on or equal to or The CSI reference resource is determined by Z′3, which allows UEs with different capabilities to determine the CSI reference resource based on their corresponding hardware capabilities, thereby improving the flexibility of UE hardware. Indicates the number of symbols per slot / a slot. ref It can be based on UE capabilities. For example, UE indicates / reports X through capability signaling. ref For example, the UE indicates / reports the value of X′ through capability signaling, and X ref Based on or equal to or

[0443] Optionally, when the uplink time slot associated with the first uplink channel and the uplink time slot associated with the second uplink channel are the same (for example, when n″=n′), or when the uplink time slot associated with the first uplink channel and the uplink time slot associated with the second uplink channel overlap, the UE performs the first method. Optionally, when the downlink time slot associated with the first uplink channel (for example, time slot ) and a downlink time slot associated with the second uplink channel (e.g., time slot ) In the same downlink time slot, the UE executes the first method. This clarifies the execution conditions of the first method, so that the base station and the UE have the same understanding of the CSI reporting conditions, thereby improving the reliability of the communication system.

[0444] Optionally, when the uplink time slot associated with the first uplink channel and the uplink time slot associated with the second uplink channel are different (for example, when n′ is not equal to n″), or, when the uplink time slot associated with the first uplink channel and the uplink time slot associated with the second uplink channel do not overlap, or, when the uplink time slot associated with the second uplink channel is after the uplink time slot associated with the first uplink channel, or, when the downlink time slot associated with the second uplink channel is after the downlink time slot associated with the first uplink channel, the UE performs the second method. Optionally, when the downlink time slot associated with the first uplink channel (for example, time slot ) and a downlink time slot associated with the second uplink channel (e.g., time slot ) In different downlink time slots, the UE executes the second method. This clarifies the execution conditions of the second method, so that the base station and the UE have the same understanding of the CSI reporting conditions, thereby improving the reliability of the communication system.

[0445] Optionally, the method for determining the CSI reference resource may be a combination of method one and method two. Optionally, for the CSI report carried by the second uplink channel, the UE may determine the first time slot corresponding to the corresponding CSI reference resource by method one, and the UE may determine the second time slot corresponding to the corresponding CSI reference resource by method two, and the UE determines that the time slot where the CSI reference resource corresponding to the CSI report carried by the second uplink channel is located / corresponds to is the earlier / latter time slot of the first time slot and the second time slot. Optionally, for the CSI report carried by the second uplink channel, the UE may determine the n time slot corresponding to the corresponding CSI reference resource by method one. CSI_ref , and the UE can determine the corresponding CSI reference resource n by method 2 CSI_ref , and the UE determines the CSI reference resource corresponding to the CSI report carried by the second uplink channel, wherein the CSI reference resource corresponds to n CSI_ref n is determined by method 1 CSI_refand n determined by method 1 CSI_ref The value with the larger / smaller median value. For example, for CSI reporting #a, the UE determines that the CSI reference resource corresponding to CSI reporting #a is in time slot #5 through method 1, and the UE determines that the CSI reference resource corresponding to CSI reporting #a is in time slot #7 through method 2, then the CSI reference resource corresponding to CSI reporting #a is in time slot #7 (for example, the UE takes the later time slot). For example, for CSI reporting #a, the UE determines that the CSI reference resource corresponding to CSI reporting #a is in time slot #7 through method 1. CSI_ref The value of is 3, and the UE determines the n corresponding to the CSI reference resource corresponding to CSI reporting #a through method 2. CSI_ref The value of is 5, then the CSI reference resource corresponding to CSI reporting #a corresponds to n CSI_ref The value of 3 (for example, the UE uses a smaller value). By combining Method 1 and Method 2 to select the time slot corresponding to the earlier CSI reference resource, the UE can have more time to prepare for CSI reporting, which helps reduce the UE hardware complexity. By combining Method 1 and Method 2 to select the time slot corresponding to the later CSI reference resource, the UE can determine the CSI reporting based on the later measurement of the reference signal, which helps obtain accurate CSI.

[0446] In the present application, the downlink subcarrier spacing configuration may be the subcarrier spacing of the (activated) BWP for measuring reference signals associated with the CSI report. In the present application, the downlink subcarrier spacing configuration may be the subcarrier spacing of the (activated) BWP of the serving cell for measuring reference signals associated with the CSI report.

[0447] Optionally, a timeslot in a cell (eg, a serving cell) may be considered a valid downlink timeslot if at least one of the following conditions is met:

[0448] The timeslot includes at least one higher layer configured downlink or flexible symbol.

[0449] ● The timeslot does not fall within a configured measurement gap. Optionally, the configured measurement gap is for the UE.

[0450] The above method can clarify the CSI reference resource on which the CSI in the CSI report is based, so that the UE and the base station have the same understanding of the CSI, thereby improving the reliability of the communication system.

[0451] The following discusses methods / behaviors of the UE related to measurement. Optionally, the UE does not (or is not expected to, or is not required to) measure the channel and / or interference on a reference channel (e.g., a specific reference signal). Optionally, when periodic CSI-RS (or semi-persistent CSI-RS) or SSB is used for channel measurement and / or interference measurement, the UE does not (or is not expected to, or is not required to) measure the channel and / or interference on a reference channel (e.g., a specific reference signal). The following discusses conditions / characteristics satisfied by specific reference signals.

[0452] ● Optionally, the specific reference signal is used for channel measurement and / or for interference measurement. Optionally, the specific reference signal is in a resource set used for channel measurement and / or for interference measurement.

[0453] ● Optionally, the specific reference signal is associated with the time domain resources of the first uplink channel (or, the first uplink signal) and / or the time domain resources of the second uplink channel. Optionally, the specific reference signal refers to: a reference signal between the first uplink channel (or, the first uplink signal) and the second uplink channel. Optionally, the specific reference signal is after the first uplink channel (or, the first uplink signal), and / or, the specific reference signal is before the second uplink channel. Optionally, the specific reference signal is not earlier than the first uplink channel (or, the first uplink signal), and / or, the specific reference signal is not later than the second uplink channel. For example, the first symbol of the specific reference signal is after the last symbol / first symbol of the first uplink channel (or, the first uplink signal), and / or, the last symbol of the specific reference signal is before the first symbol / last symbol of the second uplink channel. For example, the first symbol of the specific reference signal is after the first uplink channel (or, the first uplink signal), and / or, the last symbol of the specific reference signal is before the second uplink channel. Optionally, the specific reference signal is not earlier than X of the first symbol of the second uplink channel. ref Optionally, the last symbol of the specific reference signal is not earlier than the first symbol of the second uplink channel X ref For example, the first symbol of the second uplink channel is symbol #n, and the X ref The symbol before the symbol is the symbol #nX ref , then the last symbol of a particular reference signal is no earlier than symbol #nX ref (Or, in the symbol #nX ref Before). X ref See above for a description of .

[0454] The above method can clarify which resources related to the CSI reporting of the second uplink channel do not need to be measured, thereby avoiding the UE from measuring the corresponding resources and saving the energy consumption of the UE.

[0455] In this application, "a channel / a time unit before a channel / a time unit" can be understood as: a channel / a time unit is not later than a channel / a time unit. "a channel / a time unit after a channel / a time unit" can be understood as: a channel / a time unit is not earlier than a channel / a time unit.

[0456] The various illustrative logical blocks, modules, and circuits described in this disclosure may be implemented or performed 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 the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A 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 in conjunction with a DSP core, or any other such configuration.

[0457] The steps of the method or algorithm described in this disclosure can be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. The software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, register, hard disk, removable disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read and write information from / to the storage medium. In an alternative, the storage medium can be integrated into the processor. The processor and storage medium can reside in an ASIC. The ASIC can reside in a user terminal. In an alternative, the processor and storage medium can reside in a user terminal as discrete components.

[0458] In one or more exemplary designs, the functions described 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 includes both computer storage media and communication media, the latter including any media that facilitates the transfer of a computer program from one location to another. Storage media may be any available media that can be accessed by a general-purpose or special-purpose computer.

[0459] The description set forth herein, in conjunction with the accompanying drawings, describes example configurations, methods, and apparatus and does not represent all examples that may be implemented or within the scope of the claims. The term "example" as used herein means "serving 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.

[0460] 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 invention, 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 individually 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.

[0461] 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 the 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 the singular, the plural 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 means for performing the functions described herein are included in all aspects of the present disclosure.

[0462] The text and drawings are provided as examples only to help readers understand the present disclosure. They are not intended to, 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 will be apparent to those skilled in the art based on what is disclosed herein that the embodiments and examples shown may be modified 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: receiving configuration information for sub-band non-overlapping full-duplex (SBFD), wherein the configuration information indicates SBFD frequency domain resources; Receive channel state information (CSI) reporting configuration; and A CSI reporting frequency band for reporting CSI associated with the CSI reporting configuration is determined based on the SBFD frequency domain resources.

2. The method according to claim 1, wherein The CSI reporting frequency band includes at least one of the following: A subset of the CSI subbands; The CSI reporting configuration is associated with a physical resource block PRB in a bandwidth part BWP.

3. The method according to claim 2, wherein: When the number of PRBs in the BWP is less than or equal to a predefined value, or the number of PRBs in the downlink subband included in the BWP in the SBFD frequency domain resources is less than or equal to a predefined value: The CSI reporting frequency band includes the frequency domain resources of the BWP in the downlink subband included in the SBFD frequency domain resources; or, The CSI reporting band includes all PRBs in the BWP; or, The BWP is not configured to be outside the downlink subband included in the SBFD frequency domain resources.

4. The method according to claim 2, wherein: The CSI subband is within the BWP.

5. The method according to claim 4, wherein The number of CSI subbands included in the CSI subband is determined based on the number of bits in the bitmap included in the CSI reporting frequency band parameter associated with the CSI reporting configuration, and the CSI subband with the lowest frequency domain position in the CSI subband is the CSI subband with the lowest frequency domain position in the BWP.

6. The method according to claim 5, wherein: The bitmap indicates one or more CSI subbands among the CSI subbands, and wherein the subset of the CSI subbands includes CSI subbands within a downlink subband included in the SBFD frequency domain resources among the one or more CSI subbands.

7. The method according to claim 2, wherein: The CSI subband is within the BWP and within a downlink subband included in the SBFD frequency domain resources.

8. The method according to claim 7, wherein: The number of CSI subbands included in the CSI subband is determined based on the number of bits in the bitmap included in the CSI reporting frequency band parameter associated with the CSI reporting configuration, and the CSI subband with the lowest frequency domain position in the CSI subband is the CSI subband with the lowest frequency domain position in the BWP and in the downlink subband included in the SBFD frequency domain resource.

9. The method according to claim 8, wherein The bitmap indicates one or more CSI subbands among the CSI subbands, and the subset of the CSI subbands includes the one or more CSI subbands.

10. The method according to claim 2, further comprising: For each of the CSI subbands: Determine a first CSI subband size from configurable CSI subband sizes based on subband size-related parameters included in the CSI reporting configuration, The configurable CSI subband size is determined based on the frequency domain resources of the BWP within the downlink subband included in the SBFD frequency domain resources or based on the BWP.

11. The method according to claim 10, wherein: Each subband in the CSI subband is associated with N SB consecutive PRBs, Among them, N SB is determined based on the first CSI subband size; and / or, The N SB The number of the reference common resource block CRB corresponding to the starting PRB of consecutive PRBs is N SB An integer multiple of .

12. The method according to claim 11, wherein The frequency domain resources of each CSI subband in the subset of the CSI subband are based on the N SB The continuous PRBs are within the BWP and are determined by a PRB subset within a downlink subband included in the SBFD frequency domain resources.

13. The method according to claim 12, wherein: The PRBs included in the PRB subset are continuous; or, If the PRBs included in the PRB subset are continuous, the frequency domain resources of each CSI subband are the PRB subset; or, If the PRBs included in the PRB subset are non-contiguous, the frequency domain resources of each CSI subband are a group of contiguous PRBs predefined in the PRB subset.

14. The method according to claim 2, wherein: The CSI subbands in the downlink subbands included in the SBFD frequency domain resources in the subset of the CSI subbands are numbered consecutively.

15. The method according to any one of claims 1 to 14, wherein Determining the CSI reporting frequency band is further based on the SBFD time domain resources indicated by the configuration information; and the CSI reporting frequency band is determined based on the SBFD frequency domain resources and the SBFD time domain resources.

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