Method and apparatus for receiving and transmitting information

Abstract

The present disclosure provides a method executed by a user equipment (UE) in a wireless communication system, the method comprising: receiving a channel state information (CSI) reporting configuration, the CSI reporting configuration comprising a group of sub-configurations, a first resource set corresponding to the CSI reporting configuration and used for channel measurement being configured with NABC groups, the NABC > = 1; determining and / or reporting CSI (Channel State Information) corresponding to one or more sub-configurations, the resource corresponding to each sub-configuration in the group of sub-configurations comprising at least one of the following: resources of Ncom resource combinations, each resource of each resource combination in the Ncom resource combinations being respectively from different groups in the NABC groups, and Ncom > = 1; the resources are in at least one group in the NABC groups.

Description

Technical Field

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

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

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

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

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

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

[0007] In order to enhance the scheduling efficiency of 5G wireless communication systems, base stations need to obtain channel state information (CSI) so as to perform scheduling according to the CSI fed back by terminal devices. However, how to further enhance CSI-related performance is an unresolved problem.

[0008] One aspect of the present disclosure provides a method performed by a user equipment UE in a wireless communication system, the method comprising: receiving a channel state information CSI reporting configuration, wherein the CSI reporting configuration comprises a group of sub-configurations, and a first resource set for channel measurement corresponding to the CSI reporting configuration is configured with N ABC groups, where N ABC≥1; determine and / or report CSI corresponding to one or more sub-configurations, wherein the resources corresponding to each sub-configuration in the set of sub-configurations include at least one of the following: N com The resources of the resource combination, wherein the N com Each resource in each resource combination comes from the N ABC Different groups in groups, N com ≥1; N ABC resources in at least one of the groups.

[0009] In one example, if the i-th sub-configuration in the group of sub-configurations is configured with high-level parameters for configuring resource combinations, the resources corresponding to the i-th sub-configuration include the N com A combination of resources.

[0010] In one example, the resource corresponding to the i-th sub-configuration in the group of sub-configurations is determined based on at least one of a resource sharing parameter, a first parameter related to the i-th sub-configuration, and a second parameter related to the i-th sub-configuration for indicating the resource in the group. ABC The resources in at least one of the N groups, wherein the first parameter is used to indicate the N ABC resources in one or more groups.

[0011] In one example, if the i-th sub-configuration is configured with the first parameter and the second parameter, the resources corresponding to the i-th sub-configuration include the resources indicated by the second parameter in the resources of one or more groups determined by the first parameter; and / or, if the i-th sub-configuration is configured with the first parameter and the i-th sub-configuration is not configured with the second parameter and / or the CSI reporting configuration is configured with the resource sharing parameter, the resources corresponding to the i-th sub-configuration include all resources in the resources of one or more groups determined by the first parameter.

[0012] In an example, if the i-th sub-configuration is not configured with the second parameter and / or the CSI reporting configuration is not configured with the resource sharing parameter, then the N corresponding to the i-th sub-configuration ABC The resources in at least one of the groups include: resources in the one or more groups that are not referenced by the resource combination corresponding to any sub-configuration in the group of sub-configurations; or resources in the one or more groups that are not referenced by the resource combination corresponding to any sub-configuration in the one or more sub-configurations.

[0013] In one example, if the CSI reporting configuration is not configured with the resource sharing parameters, there is no intersection between the resources corresponding to the i-th subconfiguration in the group of subconfigurations and the resources corresponding to other subconfigurations other than any i-th subconfiguration in the group of subconfigurations.

[0014] In one example, the bit width of the channel state information reference signal resource indicator CRI field in the CSI corresponding to the i-th sub-configuration in the one or more sub-configurations is determined based on the number of resources corresponding to the i-th sub-configuration and / or the number of resource combinations corresponding to the i-th sub-configuration.

[0015] In one example, if the i-th sub-configuration in the set of sub-configurations is configured with a third parameter, wherein the third parameter includes a parameter for indicating a port subset and / or a parameter for indicating a power offset, then the third parameter applies to at least one of the following: all resources corresponding to the i-th sub-configuration; ABC resources in at least one of the N groups; the resources corresponding to the i-th sub-configuration are in the N com resources in a resource portfolio.

[0016] In one example, if the resources corresponding to the i-th sub-configuration include N com resource combination and is configured with a plurality of third parameters, then the plurality of third parameters and the N com There is a one-to-one correspondence between each resource combination.

[0017] In one example, if the CSI reporting configuration is for periodic CSI reporting, the number of CSI processing unit CPUs occupied by the CSI reporting configuration is the total number of resources corresponding to each sub-configuration in the set of sub-configurations; or, if the CSI reporting configuration is for semi-continuous or non-periodic CSI reporting, the number of CPUs occupied by the CSI reporting configuration is the total number of resources corresponding to each sub-configuration in the one or more sub-configurations.

[0018] In one example, if the resources corresponding to the i-th sub-configuration in the set of sub-configurations include N com resource combination, the number of CPUs occupied by the i-th sub-configuration is based on the number of resources in the resource combination corresponding to the i-th sub-configuration and / or N com and / or, if the resources corresponding to the i-th sub-configuration in the set of sub-configurations include the N ABC If the number of CPUs occupied by the ith sub-configuration is the number of resources in at least one of the resource groups, the number of CPUs occupied by the ith sub-configuration is determined based on the number of resources in the resource group corresponding to the ith sub-configuration.

[0019] In one example, if a channel state information reference signal CSI-RS resource is referenced by Y subconfigurations, the CSI-RS resource is counted Y1 times, where Y≥1 and Y1≥1, Y1 is equal to the sum of the number of counts for the CSI-RS resource for each of the Y subconfigurations, or Y1 is equal to Y; and wherein the Y subconfigurations are from the group of subconfigurations, or the Y subconfigurations are from the one or more subconfigurations.

[0020] In one example, if the CSI-RS resource is referenced Z times by a resource combination and / or resource corresponding to one of the Y sub-configurations, the count number of times the CSI-RS resource corresponds to the sub-configuration is Z, where Z≥0.

[0021] In one example, if the CSI reporting configuration is not configured with resource sharing parameters, or the sub-configuration is not configured with high-level parameters for configuring resource combination, the count number of times the CSI-RS resource corresponds to the sub-configuration is 1.

[0022] In one example, when the CSI-RS resource is a periodic resource and / or a semi-persistent resource, the Y sub-configurations come from the group of sub-configurations; or, when the CSI-RS resource is a non-periodic resource, the Y sub-configurations come from the one or more sub-configurations.

[0023] Another aspect of the present disclosure provides a method performed by a base station in a wireless communication system, the method comprising: sending a channel state information CSI reporting configuration, wherein the CSI reporting configuration comprises a group of sub-configurations, and the CSI reporting configuration is configured with N ABC groups, and the N ABC The resources in the groups are from the first resource set for channel measurement corresponding to the CSI reporting configuration, where N ABC ≥1; receiving CSI based on the CSI reporting configuration, wherein the resources corresponding to each sub-configuration in the set of sub-configurations include at least one of the following: N com resource combinations, wherein the N com Each resource in each resource combination comes from the N ABC Different groups in groups, N com ≥1; N ABC resources in at least one of the groups.

[0024] 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 above method that can be executed by the user equipment.

[0025] 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 above method that can be executed by the base station.

[0026] 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

[0027] 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.

[0028] Figure 1 shows the overall structure of an example wireless communication network according to various embodiments of the present disclosure;

[0029] Figure 2A and Figure 2B 200 and 250 are respectively shown in a wireless communication network according to various embodiments of the present disclosure;

[0030] Figure 3A and Figure 3B The structures of a user equipment (UE) and a base station in a wireless communication network according to various embodiments of the present disclosure are respectively shown;

[0031] Figure 4 A method 400 performed by a user equipment (UE) according to various embodiments of the present disclosure is shown;

[0032] Figure 5 A method 500 performed by a base station according to various embodiments of the present disclosure is shown;

[0033] Figure 6 shows a structure 600 of a user equipment according to various embodiments of the present disclosure;

[0034] Figure 7 A structure 700 of a base station according to various embodiments of the present disclosure is shown. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] 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.

[0038] By referring to the embodiments described in detail below in conjunction with the accompanying drawings, the advantages and features of the present disclosure and the ways to achieve them will become clear. However, the present disclosure is not limited to the embodiments set forth below, but can be implemented in various different forms. The following embodiments are provided only to fully disclose the present disclosure and inform those skilled in the art of the scope of the present disclosure, and the present disclosure is limited only by the scope of the attached claims. Throughout the specification, the same or similar reference numerals represent the same or similar elements.

[0039] Figure 1 An example wireless communication network 100 is shown in accordance with various embodiments of the present disclosure. Figure 1 The embodiment of the wireless communication network 100 shown in FIG. 1 is for illustration only. Other embodiments of the wireless communication network 100 may be used without departing from the scope of the present disclosure.

[0040] The wireless communication network 100 includes gNodeB (gNB) 101, gNB 102, and gNB 103. gNB 101 communicates with gNB 102 and gNB 103. gNB 101 also communicates with at least one Internet Protocol (IP) network 130, such as the Internet, a private IP network, or other data network.

[0041] Depending on the type of network, other well-known terms such as “base station (BS)” or “access point (AP)” can be used instead of “gNodeB” or “gNB”. For convenience, the terms “gNodeB” and “gNB” are used in this disclosure to refer to network infrastructure components that provide wireless access to remote terminals. In addition, depending on the type of network, other well-known terms such as “mobile station”, “subscriber station”, “remote terminal”, “wireless terminal” or “user device” can be used instead of “user equipment” or “UE”. For convenience, the terms “user equipment” and “UE” are used in this disclosure to refer to a remote wireless device that wirelessly accesses a gNB, whether the UE is a mobile device (such as a mobile phone or a smart phone) or a commonly thought of fixed device (such as a desktop computer or a vending machine).

[0042] The gNB 102 provides wireless broadband access to a network 130 for a first plurality of user equipments (UEs) within a coverage area 120 of the gNB 102. The first plurality of UEs includes a UE 111 that may be located in a small business (SB), a UE 112 that may be located in an enterprise (E), a UE 113 that may be located in a WiFi hotspot (HS), a UE 114 that may be located in a first residence (R), a UE 115 that may be located in a second residence (R), and a UE 116 that may be a mobile device (M) such as a cellular phone, a wireless laptop, a wireless PDA, etc. The gNB 103 provides wireless broadband access to the network 130 for a second plurality of UEs within a coverage area 125 of the gNB 103. The second plurality of UEs includes UE 115 and UE 116. In some embodiments, one or more of the gNBs 101-103 may be capable of communicating with each other and with the UEs 111-116 using 5G, Long Term Evolution (LTE), LTE-A, WiMAX, or other advanced wireless communication technologies.

[0043] 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.

[0044] As described in more detail below, one or more of gNB 101, gNB 102, and gNB 103 include a 2D antenna array as described in embodiments of the present disclosure. In some embodiments, one or more of gNB 101, gNB 102, and gNB 103 support codebook design and structure for a system with a 2D antenna array.

[0045] although Figure 1 An example of a wireless communication network 100 is shown, but Figure 1 Various changes may be made. For example, the wireless communication network 100 can include any number of gNBs and any number of UEs in any suitable arrangement. Also, gNB 101 can communicate directly with any number of UEs and provide those UEs with wireless broadband access to network 130. Similarly, each gNB 102-103 can communicate directly with network 130 and provide UEs with direct wireless broadband access to network 130. In addition, gNB 101, gNB 102, and / or gNB 103 can provide access to other or additional external networks, such as an external telephone network or other type of data network.

[0046] Figure 2A and Figure 2B A transmit path 200 and a receive path 250 in a wireless communication network according to various embodiments of the present disclosure are shown, respectively. In the following description, the transmit path 200 can be described as being implemented in a gNB (such as gNB 102), and the receive path 250 can be described as being implemented in a UE (such as UE 116). However, it should be understood that the receive path 250 can be implemented in a gNB and the transmit path 200 can be implemented in a UE. In some embodiments, the receive path 250 is configured to support codebook design and structure for a system having a 2D antenna array as described in embodiments of the present disclosure.

[0047] 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.

[0048] In the transmit path 200, the channel coding and modulation block 205 receives a set of information bits, applies coding (such as low-density parity check (LDPC) coding), and modulates the input bits (such as using quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM)) to generate a sequence of frequency-domain modulation symbols. The serial-to-parallel (S-to-P) block 210 converts (such as demultiplexes) the serial modulation symbols into parallel data to generate N parallel symbol streams, where N is the number of IFFT / FFT points used in the gNB 102 and the UE 116. The N-point IFFT block 215 performs an IFFT operation on the N parallel symbol streams to generate a time-domain output signal. The parallel-to-serial block 220 converts (such as multiplexes) the parallel time-domain output symbols from the N-point IFFT block 215 to generate a serial time-domain signal. The add cyclic prefix block 225 inserts a cyclic prefix into the time-domain signal. The up-converter 230 modulates (such as up-converts) the output of the add cyclic prefix block 225 to an RF frequency for transmission via a wireless channel. The signal can also be filtered at baseband before conversion to RF frequency.

[0049] The RF signal transmitted from gNB 102 arrives at UE 116 after passing through a wireless channel, and an operation opposite to that at gNB 102 is performed at UE 116. Downconverter 255 downconverts the received signal to a baseband frequency, and remove cyclic prefix block 260 removes the cyclic prefix to generate a serial time-domain baseband signal. Serial-to-parallel block 265 converts the time-domain baseband signal into a parallel time-domain signal. N-point FFT block 270 performs an FFT algorithm to generate N parallel frequency-domain signals. Parallel-to-serial block 275 converts the parallel frequency-domain signals into a sequence of modulated data symbols. Channel decoding and demodulation block 280 demodulates and decodes the modulated symbols to recover the original input data stream.

[0050] Each of gNBs 101-103 may implement a transmit path 200 similar to that for transmitting in the downlink to UEs 111-116 and may implement a receive path 250 similar to that for receiving in the uplink from UEs 111-116. Similarly, each of UEs 111-116 may implement a transmit path 200 for transmitting in the uplink to gNBs 101-103 and may implement a receive path 250 for receiving in the downlink from gNBs 101-103.

[0051] Figure 2A and Figure 2B Each of the components in can be implemented using hardware only, or a combination of hardware and software / firmware. As a specific example, Figure 2A and Figure 2B At least some of the components in can be implemented with software, while other components can be implemented by configurable hardware or a combination of software and configurable hardware. For example, FFT block 270 and IFFT block 215 can be implemented as a configurable software algorithm, in which the value of the number of points N can be modified according to the implementation.

[0052] In addition, although described as using FFT and IFFT, this is illustrative only and should not be construed as limiting the scope of the present disclosure. Other types of transforms can be used, such as discrete Fourier transform (DFT) and inverse discrete Fourier transform (IDFT) functions. It should be understood that for DFT and IDFT functions, the value of variable N can be any integer (such as 1, 2, 3, 4, etc.), while for FFT and IFFT functions, the value of variable N can be any integer as a power of 2 (such as 1, 2, 4, 8, 16, etc.).

[0053] although Figure 2A and Figure 2B An example of a wireless transmit and receive path is shown, but the Figure 2A and Figure 2B Make various changes. For example, Figure 2A and Figure 2B The various components in can be combined, further subdivided or omitted, and additional components can be added according to specific needs. Figure 2A and Figure 2B It is intended to illustrate examples of the types of transmit and receive paths that can be used in a wireless network. Any other suitable architecture can be used to support wireless communications in a wireless network.

[0054] Figure 3A An example UE 116 is shown in accordance with various embodiments of the present disclosure. Figure 3A The embodiment of UE 116 shown in FIG. 1 is for illustration only, and Figure 1 UEs 111-115 can have the same or similar configurations. However, UEs have a variety of configurations, and Figure 3A The scope of the present disclosure is not limited to any particular implementation of the UE.

[0055] UE 116 includes antenna 305, radio frequency (RF) transceiver 310, transmit (TX) processing circuit 315, microphone 320, and receive (RX) processing circuit 325. UE 116 also includes speaker 330, processor / controller 340, input / output (I / O) interface 345, input device(s) 350, display 355, and memory 360. Memory 360 includes operating system (OS) 361 and one or more applications 362.

[0056] The RF transceiver 310 receives incoming RF signals from the antenna 305 transmitted by the gNB of the wireless network 100. The RF transceiver 310 downconverts the incoming RF signals to generate an intermediate frequency (IF) or baseband signal. The IF or baseband signal is sent to the RX processing circuit 325, where the RX processing circuit 325 generates a processed baseband signal by filtering, decoding and / or digitizing the baseband or IF signal. The RX processing circuit 325 sends the processed baseband signal to the speaker 330 (such as for voice data) or to the processor / controller 340 (such as for web browsing data) for further processing.

[0057] The TX processing circuit 315 receives analog or digital voice data from the microphone 320, or receives other outgoing baseband data (such as network data, email, or interactive video game data) from the processor / controller 340. The TX processing circuit 315 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. The RF transceiver 310 receives the outgoing processed baseband or IF signal from the TX processing circuit 315 and up-converts the baseband or IF signal to an RF signal that is transmitted via the antenna 305.

[0058] The processor / controller 340 can include one or more processors or other processing devices and execute an OS 361 stored in the memory 360 to control the overall operation of the UE 116. For example, the processor / controller 340 can control the reception of forward channel signals and the transmission of reverse channel signals through the RF transceiver 310, the RX processing circuit 325, and the TX processing circuit 315 according to well-known principles. In some embodiments, the processor / controller 340 includes at least one microprocessor or microcontroller.

[0059] The processor / controller 340 is also capable of executing other processes and programs resident in the memory 360, such as operations for channel quality measurement and reporting of a system having a 2D antenna array as described in the embodiments of the present disclosure. The processor / controller 340 is capable of moving data into or out of the memory 360 as required by the execution process. In some embodiments, the processor / controller 340 is configured to execute an application 362 based on the OS 361 or in response to a signal received from a gNB or operator. The processor / controller 340 is also coupled to an I / O interface 345, where the I / O interface 345 provides the UE 116 with the ability to connect to other devices such as laptops and handheld devices. The I / O interface 345 is the communication path between these accessories and the processor / controller 340.

[0060] Processor / controller 340 is also coupled to input device(s) 350 and display 355. An operator of UE 116 can input data into UE 116 using input device(s) 350. Display 355 can be a liquid crystal display or other display capable of presenting text and / or at least limited graphics (such as from a website). Memory 360 is coupled to processor / controller 340. A portion of memory 360 can include random access memory (RAM), while another portion of memory 360 can include flash memory or other read-only memory (ROM).

[0061] although Figure 3A An example of UE 116 is shown, but it is possible to Figure 3A Make various changes. For example, Figure 3A The various components in can be combined, further subdivided, or omitted, and additional components can be added as required. As a specific example, processor / controller 340 can be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). In addition, although Figure 3A The UE 116 is shown configured as a mobile phone or smart phone, but the UE can be configured to operate as other types of mobile or stationary devices.

[0062] Figure 3BAn example gNB 102 is shown in accordance with various embodiments of the present disclosure. Figure 3B The embodiment of the gNB 102 shown in FIG. is for illustration only, and Figure 1 Other gNBs can have the same or similar configurations. However, gNBs have a variety of configurations, and Figure 3B The scope of the present disclosure is not limited to any particular implementation of the gNB. It should be noted that gNB 101 and gNB 103 can include the same or similar structure as gNB 102.

[0063] like Figure 3B As shown in FIG. 1 , gNB 102 includes multiple antennas 370a-370n, multiple RF transceivers 372a-372n, transmit (TX) processing circuitry 374, and receive (RX) processing circuitry 376. In some embodiments, one or more of the multiple antennas 370a-370n include a 2D antenna array. gNB 102 also includes a controller / processor 378, a memory 380, and a backhaul or network interface 382.

[0064] The RF transceivers 372a-372n receive incoming RF signals from the antennas 370a-370n, such as signals transmitted by a UE or other gNB. The RF transceivers 372a-372n downconvert the incoming RF signals to generate IF or baseband signals. The IF or baseband signals are sent to the RX processing circuitry 376, which generates processed baseband signals by filtering, decoding, and / or digitizing the baseband or IF signals. The RX processing circuitry 376 sends the processed baseband signals to the controller / processor 378 for further processing.

[0065] The TX processing circuit 374 receives analog or digital data (such as voice data, network data, email, or interactive video game data) from the controller / processor 378. The TX processing circuit 374 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. The RF transceivers 372a-372n receive the outgoing processed baseband or IF signals from the TX processing circuit 374 and up-convert the baseband or IF signals to RF signals that are transmitted via the antennas 370a-370n.

[0066] The controller / processor 378 can include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, the controller / processor 378 can control the reception of forward channel signals and the transmission of reverse channel signals through the RF transceivers 372a-372n, the RX processing circuitry 376, and the TX processing circuitry 374 in accordance with well-known principles. The controller / processor 378 can also support additional functionality, such as more advanced wireless communication functionality. For example, the controller / processor 378 can perform a Blind Interference Sensing (BIS) process, such as performed through a Blind Interference Sensing (BIS) algorithm, and decode a received signal with an interference signal subtracted. The controller / processor 378 can support any of a variety of other functions in the gNB 102. In some embodiments, the controller / processor 378 includes at least one microprocessor or microcontroller.

[0067] The controller / processor 378 can also execute programs and other processes resident in the memory 380, such as a basic OS. The controller / processor 378 can also support channel quality measurement and reporting for systems with 2D antenna arrays as described in embodiments of the present disclosure. In some embodiments, the controller / processor 378 supports communications between entities such as web RTC. The controller / processor 378 can move data into or out of the memory 380 as needed by the executing process.

[0068] The controller / processor 378 is also coupled to a backhaul or network interface 382. The backhaul or network interface 382 allows the gNB 102 to communicate with other devices or systems via a backhaul connection or via a network. The backhaul or network interface 382 can support communication via any suitable (multiple) wired or wireless connections. For example, when the gNB 102 is implemented as part of a cellular communication system (such as a cellular communication system supporting 5G or new radio access technology or NR, LTE or LTE-A), the backhaul or network interface 382 can allow the gNB 102 to communicate with other gNBs via a wired or wireless backhaul connection. When the gNB 102 is implemented as an access point, the backhaul or network interface 382 can allow the gNB 102 to communicate with a larger network (such as the Internet) via a wired or wireless local area network or via a wired or wireless connection. The backhaul or network interface 382 includes any suitable structure that supports communication via a wired or wireless connection, such as an Ethernet or RF transceiver.

[0069] The memory 380 is coupled to the controller / processor 378. A portion of the memory 380 can include RAM, while another portion of the memory 380 can include flash memory or other ROM. In some embodiments, a plurality of instructions such as a BIS algorithm are stored in the memory. The plurality of instructions are configured to cause the controller / processor 378 to perform the BIS process and decode the received signal after subtracting at least one interference signal determined by the BIS algorithm.

[0070] 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.

[0071] although Figure 3B An example of a gNB 102 is shown, but the Figure 3B For example, gNB 102 can include any number of Figure 3B . As a specific example, the access point can include multiple backhaul or network interfaces 382, ​​and the controller / processor 378 can support routing functions to route data between different network addresses. As another specific example, although shown as including a single instance of TX processing circuitry 374 and a single instance of RX processing circuitry 376, the gNB 102 can include multiple instances of each (such as one for each RF transceiver).

[0072] Note that, in this document, the term "channel state information (CSI) reporting configuration" can be used interchangeably with at least one of the terms "CSI reporting configuration information", "configuration information for CSI reporting", "information for configuring CSI reporting", "reporting setting" and "CSI reporting setting". In this document, the term "channel state information reference signal (CSI-RS)" can be used interchangeably with the term "non-zero power channel state information reference signal (NZP CSI-RS)". In the present application, "sub-configuration" may be referred to as "sub-configuration information". The method for UE to determine and / or report CSI is described in detail below with reference to the accompanying drawings. The method can be for CSI determination and / or reporting of a single transmission / reception point (TRP), and can also be for CSI determination and / or reporting of multiple TRPs.

[0073] Figure 4A method 400 performed by a user equipment (UE) according to various embodiments of the present disclosure is shown. The method 400 includes: at 401, the UE receives a CSI reporting configuration (e.g., CSI-ReportConfig). Optionally, the CSI reporting configuration information is associated / corresponds to / includes one or more sub-configurations; at 402, the UE determines or reports the CSI based on the received CSI reporting configuration information. Optionally, the number (or, the total number) of the one or more sub-configurations is L (L≥1, or, L≥2). For example, the CSI reporting configuration information may include a list of sub-configurations. For example, the CSI reporting configuration information may include L sub-configurations. For example, the group of sub-configurations is provided by a high-level parameter (e.g., csi-ReportSubConfigList). Optionally, one / each sub-configuration (in the group of sub-configurations) is identified by an identifier (ID) (e.g., csi-ReportSubConfigID). For example, one / each sub-configuration may be provided with an ID (e.g., csi-ReportSubConfigID) by a high-level parameter.

[0074] Optionally, the method described in the present application needs to meet the condition: "The UE is configured with a CSI reporting configuration, and the CSI reporting configuration includes a set of sub-configurations (for example, a set of sub-configurations in a list provided by a high-level parameter csi-ReportSubConfigList)".

[0075] Optionally, the UE reports CSI corresponding to one or more sub-configurations. Optionally, the one or more sub-configurations may be / may include N (indicated / triggered) sub-configurations of L sub-configurations, where 1≤N≤L. The following describes / represents N sub-configurations as an example: a triggered sub-configuration, or an indicated sub-configuration, or a sub-configuration whose corresponding CSI is reported.

[0076] Optionally, the UE reports CSI corresponding to one or more (e.g., N) sub-configurations based on periodic / semi-continuous / non-periodic CSI reporting configuration and / or based on CSI reporting resource configuration (on the physical uplink control channel (PUCCH) / physical uplink shared channel (PUSCH)).

[0077] A UE can be semi-statically configured by higher layers to perform periodic CSI Reporting on the PUCCH. A UE can be configured by higher layers for multiple periodic CSI Reports corresponding to multiple higher layer configured CSI Reporting configurations, where the associated CSI Resource Settings are higher layer configured. Optionally, the CSI reporting configuration includes corresponding CSI resource settings. Optionally, a CSI resource setting may include a group of CSI resource sets. For example, the group of CSI resource sets may be indicated by a higher layer parameter csi-RS-ResourceSetList. Optionally, a set of resource sets may include an NZP CSI-RS set and / or a synchronization signal and physical broadcast channel (PBCH) block (Synchronization Signal and PBCHblock, SSB) set, or a set of resource sets may include a CSI interference measurement (CSI-IM) resource set. For a CSI reporting configuration corresponding to (including L sub-configurations), at each corresponding reporting opportunity, the CSI reporting corresponding to all sub-configurations (e.g., L sub-configurations) will be provided / reported (For a Reporting Setting for the CSI-ReportConfig containing Lsub-configurations, CSI reporting is provided for all the sub-configurations in each corresponding reporting instance). Optionally, periodic CSI reporting means that the reporting type parameter (reportConfigType) in the corresponding CSI reporting configuration information (e.g., CSI-ReportConfig) is set to "periodic".In this case, it can be understood that, for this (periodic) CSI reporting configuration, the number of sub-configurations indicated (eg, N) is equal to L. That is, for this (periodic) CSI reporting configuration, L sub-configurations are configured and reported.

[0078] Optionally, for semi-persistent reporting on PUCCH, PUCCH resources used to send CSI reports are configured by higher layer parameters (e.g., reportConfigType). Optionally, semi-persistent reporting on PUCCH is activated by an activation command (e.g., media access control element (MAC-CE) signaling). The activation command may select one or more semi-persistent reporting settings on PUCCH (used by the UE). Optionally, for a selected CSI reporting configuration that includes a list of sub-configurations provided by higher layer parameters (e.g., csi-ReportSubConfigList), an activation command (or, the activation command) may select one or more sub-configurations (used by the UE). For example, if the CSI reporting configuration information corresponds to semi-persistent CSI reporting on a physical uplink control channel (PUCCH), and the CSI reporting configuration information includes (or is configured with) L sub-configurations, a media access control element (MAC-CE) signaling may trigger a CSI report corresponding to the CSI reporting configuration information (for example, the CSI report is carried by the PUCCH), and the MAC-CE signaling may include indication information for indicating N sub-configurations from the L sub-configurations for CSI reporting.

[0079] Optionally, for semi-persistent reporting on PUSCH, a set of trigger states may be configured by the higher layer parameter CSI-SemiPersistentOnPUSCH-TriggerStateList. Optionally, one or more trigger states are activated by the CSI request field in the downlink control information (DCI) scrambled by the semi-persistent channel state information radio network temporary identifier (SP-CSI-RNTI). Optionally, for a CSI reporting configuration (or a reporting configuration corresponding to the CSI reporting configuration) including a list of sub-configurations provided by a higher layer parameter (e.g., csi-ReportSubConfigList), one or more trigger states may be configured and each trigger state may indicate one or more sub-configurations. For example, if the CSI reporting configuration information corresponds to semi-persistent CSI reporting on a physical uplink shared channel (PUSCH), and the CSI reporting configuration information includes (or is configured with) L sub-configurations, then a downlink control information (DCI) (or DCI format) can trigger a CSI report corresponding to the CSI reporting configuration information (for example, the CSI report is carried by PUSCH), and the DCI can indicate a triggering state. Optionally, the triggering state is associated with N sub-configurations (of the L sub-configurations) (or the triggering state can indicate N configurations) for CSI reporting. Optionally, the DCI format can be DCI format 0_1 ​​or DCI format 0_2.

[0080] Optionally, for a CSI reporting configuration including a list of sub-configurations provided by a high-level parameter (e.g., csi-ReportSubConfigList), one or more trigger states can be configured and each trigger state can indicate one or more sub-configurations (one or more trigger states can be configured with each indicating one or more of the sub-configurations). For example, if the CSI reporting configuration information corresponds to non-periodic CSI reporting, and the CSI reporting configuration information includes (or is configured with) L sub-configurations, then a DCI (or DCI format) can trigger a CSI report corresponding to the CSI reporting configuration information (e.g., the CSI report is carried by PUSCH), and the DCI can indicate a triggering state. Optionally, the triggering state is associated with N sub-configurations (of the L sub-configurations) (or the triggering state indicates N configurations) for CSI reporting. Optionally, the DCI format can be DCI format 0_1 ​​or DCI format 0_2.

[0081] Optionally, the CSI reporting configuration information corresponding to semi-persistent CSI reporting on PUCCH means that the reporting type parameter (reportConfigType) in the CSI reporting configuration information (e.g., CSI-ReportConfig) is set to "semi-persistent reporting on PUCCH (semiPersistentOnPUCCH)". Optionally, the CSI reporting configuration information corresponding to semi-persistent CSI reporting on PUSCH means that the reporting type parameter (reportConfigType) in the CSI reporting configuration information (e.g., CSI-ReportConfig) is set to "semi-persistent reporting on PUSCH (semiPersistentOnPUSCH)". Optionally, the CSI reporting configuration information corresponding to non-periodic CSI reporting means that the reporting type parameter (reportConfigType) in the CSI reporting configuration information (e.g., CSI-ReportConfig) is set to "non-periodic".

[0082] Optionally, the UE determines and / or reports CSI corresponding to one or more subconfigurations (e.g., N subconfigurations). Optionally, the CSI corresponding to one or more subconfigurations may be: CSI determined based on L subconfigurations. Optionally, the CSI corresponding to one or more subconfigurations may be: CSI determined based on one or more subconfigurations in the L subconfigurations (e.g., N subconfigurations, where N≥1). Optionally, the CSI determined based on the L subconfigurations includes: CSI determined based on each subconfiguration in the L subconfigurations (indicated parameters / information). Optionally, the CSI determined based on the N subconfigurations includes: CSI determined based on each subconfiguration in the N subconfigurations (indicated parameters / information). Optionally, the CSI corresponding to each subconfiguration of the L subconfigurations (or, N subconfigurations) includes a PMI. Optionally, the PMI is determined based on a port subset indicated by the subconfiguration (via the parameter portSubsetIndicator). Optionally, the PMI is determined based on the CSI-RS port in the port subset indicated by the sub-configuration (via the parameter portSubsetIndicator). Optionally, the length of the bitmap used to indicate the port subset (or, indicated by the parameter portSubsetIndicator) is P*K s . Optionally, the CSI corresponding to each of the L subconfigurations (or, N subconfigurations) does not include CRI. Optionally, when the fifth condition is met, the CSI corresponding to each of the L subconfigurations (or, N subconfigurations) includes a PMI. Optionally, when the fifth condition is met, the CSI corresponding to each of the L subconfigurations (or, N subconfigurations) does not include CRI. In some cases, K s resources are used to determine a PMI, therefore, the CSI report of the corresponding sub-configuration includes a PMI and does not include a CRI, so as to save the overhead of CSI reporting. Here, the fifth condition is as follows. In this document, the term "CSI" can be used interchangeably with the term "CSI parameter" or "parameter for CSI reporting". Optionally, determining the CSI parameter may be calculating the CSI parameter. Optionally, determining the CSI parameter may be determining CSI feedback. Determining the CSI parameter may also be determining a report carrying the CSI parameter (that is, determining the CSI report). Optionally, the CSI parameter may be CSI feedback. The CSI parameter may also be a report carrying the CSI parameter (that is, CSI reporting).

[0083] Optionally, the CSI parameter may be at least one of a channel state information reference signal (CSI-RS) resource indicator (CSI-RSResource Indicator, CRI), a rank indicator (Rank Indicator, RI), a precoding matrix indicator (Precoding Matrix Indicator, PMI), a channel quality indicator (CQI), and a layer indicator (LI). Optionally, the CSI parameter may be at least one of a CSI-RS resource indicator (CSI-RS Resource Indicator, CRI), an SSB resource indicator (SS / PBCH Block Resourceindicator, SSBRI), a layer 1-reference signal received power (L1-RSRP), a layer 1-signal interference and noise ratio (L1-SINR), and a capability index (CapabilityIndex).

[0084] The UE is configured with (or the UE receives) a CSI reporting configuration, the CSI reporting configuration including a set of sub-configurations (e.g., a set of sub-configurations provided by a high-level parameter csi-ReportSubConfigList). Optionally, the CSI reporting configuration may include / associated with a resource set for channel measurement (e.g., a resource set configured by a high-level parameter NZP-CSI-RS-ResourceSet). Optionally, the resource set may include one or more CSI-RS resources (e.g., NZP CSI-RS resources). Optionally, one / each CSI-RS resource (in the resource set) may be associated with / configured with a power control offset parameter (e.g., powerControlOffset). Optionally, one / each CSI-RS resource may be associated with / configured with a port number parameter (e.g., nrofPorts). Optionally, the port number parameter (e.g., nrofPorts) may define the number of CSI-RS ports. For example, the number of CSI-RS ports of the corresponding CSI-RS resource is defined. Optionally, the information / parameters with which one / each sub-configuration may be configured are as follows:

[0085] Optionally, one / each sub-configuration may be configured with a port subset (e.g., an antenna port subset). For example, one / each sub-configuration may be configured with a port subset (e.g., a CSI-RS port subset, or an antenna port subset) via a higher-level parameter (e.g., port-subsetIndicator). Optionally, the higher-level parameter may include / configure / indicate a bit sequence (or, bitmap), the bit sequence (or, bitmap) including P m (Pm ≥1) bits, where P m It refers to the number of CSI-RS resource ports configured by a high-level parameter (e.g., nrofPorts). Here, CSI-RS resource refers to the CSI-RS resource in a resource set. Optionally, the bit sequence can be p 0 ,p 1 ,...,p Pm-1 , where p 0 refers to the most significant bit (MSB) and p Pm-1 Refers to the least significant bit (LSB). Bit p i Corresponding antenna port 3000+i. Optionally, the corresponding antenna port indicated / represented by bit value 0 (in the high-layer parameter port-subsetIndicator) is disabled for the sub-configuration. Optionally, the corresponding antenna port indicated / represented by bit value 1 (in the high-layer parameter port-subsetIndicator) is enabled for the sub-configuration, and these (enabled) ports belong to the antenna port subset of the sub-configuration. For the derivation of PMI, antenna ports corresponding to all bits with value of 1 in high layer parameter (eg, port-subsetIndicator) are mapped to consecutive antenna ports starting at CSI-RS antenna port 3000 in increasing order of the bit position in high layer parameter (eg, port-subsetIndicator)

[0086] Optionally, one / each sub-configuration may be configured with a port subset (e.g., an antenna port subset). For example, one / each sub-configuration may be configured with a port subset (e.g., a CSI-RS port subset, or an antenna port subset) via a higher-level parameter (e.g., port-subsetIndicator). Optionally, the parameter port-subsetIndicator may be used to indicate the CSI-RS antenna port set (or, CSI-RS antenna port subset) for CSI calculation of the (corresponding) sub-configuration. Optionally, the higher-level parameter may include / configure / indicate a bit sequence (or, bitmap), the bit sequence (or, bitmap) including P a (P a ≥1) bits, where P a =K s *P. Here, P may be the number of CSI-RS ports in a CSI-RS resource. For example, P refers to the number of CSI-RS resource ports configured by a high-level parameter (e.g., nrofPorts). A CSI-RS resource refers to a CSI-RS resource in a resource set. K s See below for a description of . Optionally, the bit sequence may be p 0 ,p 1 ,...,p Pa-1 , where each bit in the bit sequence can be associated with K s K of resources s *P antenna ports are mapped one to one / one to one. Optionally, K s The number of ports included in each resource is 3000, 3001, ..., 3000+P-1. Optionally, the bit sequence can be p 0 ,p 1 ,...,p Pa-1 , where p 0 refers to the most significant bit (MSB) and p Pa-1 refers to the least significant bit (LSB). Optionally, bit p i Corresponding to antenna port 3000+i. Optionally, bit p i Corresponding to port 3000+i used for codebook calculation (or CQI / PMI calculation). Optionally, bit p (k-1)*Pm+x The antenna port corresponding to resource #k is 3000+x. Here, resource #k represents K s The kth resource among the resources. k can be 1, 2, ..., K sOne of. The value of x can be one of 0, 1, …, P-1. Optionally, (in the higher-level parameter port-subsetIndicator) the corresponding antenna port indicated by a bit value of 0 is disabled for this sub-configuration. Optionally, (in the higher-level parameter port-subsetIndicator) the corresponding antenna port indicated by a bit value of 1 is enabled for this sub-configuration, and these (enabled) ports belong to the antenna port subset of this sub-configuration. For PMI calculation / determination, antenna ports corresponding to all bits with value of 1 in high layer parameter (eg, port-subsetIndicator) are mapped to consecutive antenna ports starting at CSI-RS antenna port 3000 in increasing order of the bit position in high layer parameter (eg, port-subsetIndicator)).

[0087] Optionally, the sub-configuration may configure a codebook parameter. Optionally, the codebook parameter may be codebookSubConfig. Optionally, the codebook parameter applies to the antenna port subset indicated by the sub-configuration, or the codebook parameter applies to the parameter portSubsetIndicator indicated by the sub-configuration. Optionally, the codebook parameter may indicate at least one of N1, N2, Ng, codebook subset restriction, and rank restriction. Optionally, when the codebook indicated by the codebook parameter indicated by the sub-configuration / corresponding to the codebook is a type one single-panel codebook (or a type two codebook), P subset =2*N1*N2. Optionally, when the codebook indicated by the sub-configuration / the corresponding codebook parameter is a type one multi-panel codebook, P subset =2*N1*N2*Ng. Optionally, the parameter port-subsetIndicator is used to indicate the CSI-RS antenna port set (or CSI-RS antenna port subset) for CSI calculation of the (corresponding) sub-configuration. Here, Psubset refers to the number of antenna ports in the port subset indicated by the sub-configuration, or, P subset Refers to the number of bits whose value is 1 in the parameter port-subsetIndicator of this sub-configuration indication.

[0088] Optionally, the sub-configuration corresponds to / is associated with all reference signals in the resource set used for channel measurement (e.g., K s resources).

[0089] Optionally, one / each sub-configuration may be configured with a power parameter (e.g., powerOffset) via a higher layer parameter. Optionally, the power parameter is used to indicate a power offset. Optionally, when a CSI-RS resource (e.g., a CSI-RS resource in a resource set for channel measurement) is configured with a power control offset parameter (e.g., powerControlOffset), the power offset between the PDSCH RE (Resource Element) and the NZP CSI-RS RE is equal to powerControlOffset–powerOffset, or powerControlOffset+powerOffset.

[0090] Optionally, the UE determines / calculates the CSI of the first subconfiguration based on the CSI-RS resource (for example, the CSI-RS resource in the resource set). Optionally, the first subconfiguration may be one or more of a group of subconfigurations. Optionally, the first subconfiguration may be one or more of L subconfigurations. Optionally, the first subconfiguration may be one or more of N subconfigurations. Optionally, the CSI may be at least one of PMI, CQI, RI, LI, CRI. The following description is made using CSI as an example of CQI. Optionally, the UE determines / calculates the CQI of the first subconfiguration based on the ratio of PDSCH EPRE and CSI-RS EPRE. Optionally, the UE determines / calculates the CQI of the first subconfiguration based on (the assumption of) the ratio of PDSCH EPRE and CSI-RS EPRE. Optionally, for the CQI calculation of the first sub-configuration, the UE assumes / determines that the corresponding PDSCH signals transmitted on the antenna ports of a CSI-RS resource have a ratio of EPRE to CSI-RS EPRE. Optionally, the ratio (e.g., the ratio of PDSCH EPRE to CSI-RS EPRE) is determined based on at least one of a power control offset parameter of the CSI-RS resource (e.g., powerControlOffset), a number of ports of the CSI-RS resource (e.g., a number of ports configured by a high-level parameter nrofPorts), and a number of ports in a port subset associated / indicated / configured by the first sub-configuration. Here, the number of ports of the CSI-RS resource (e.g., a number of ports configured / indicated by the parameter nrofPorts) is denoted as P 0 . Here, the number (or total number) of ports in the port subset associated / indicated / configured by the first sub-configuration is recorded as P. In the present disclosure, the term "the number of ports in the port subset" can be interchanged with "the number of ports in the port subset indicated by a higher-level parameter (e.g., port-subsetIndicator)" or "the number of all bits whose value is 1 indicated / corresponding to a higher-level parameter (e.g., port-subsetIndicator)". Optionally, the ratio is based on / equal to at least one of the following, or, when the first condition is met, the ratio is based on / equal to at least one of the following:

[0091] Optionally, the power control offset parameter (e.g., powerControlOffset) of the CSI-RS resource is Optionally, the ratio is equal to the power control offset parameter (e.g., powerControlOffset) of the CSI-RS resource and For example, if powerControlOffset is 3dB, P = 16, P 0 =32, then the ratio is 0dB;

[0092] Optionally, the power control offset parameter (e.g., powerControlOffset) of the CSI-RS resource is Optionally, the ratio is equal to the power control offset parameter (e.g., powerControlOffset) of the CSI-RS resource and For example, if powerControlOffset is 3dB, P = 16, P 0 =32, then the ratio is 6dB;

[0093] Optionally, the power control offset parameter (e.g., powerControlOffset) of the CSI-RS resource is proportional to 10log 10 Optionally, the ratio is equal to the power control offset parameter of the CSI-RS resource (e.g., powerControlOffset) and 10log 10 (P) (in linear proportion). For example, if powerControlOffset is 3dB and P=16, then the ratio is 15dB;

[0094] Optionally, the power control offset parameter (e.g., powerControlOffset) of the CSI-RS resource is Optionally, the ratio is equal to the power control offset parameter (e.g., powerControlOffset) of the CSI-RS resource and For example, if powerControlOffset is 3dB and P=16, the ratio is -9dB;

[0095] Optionally, the power control offset parameter (e.g., powerControlOffset) of the CSI-RS resource is proportional to 10log 10 (P 0 Optionally, the ratio is equal to the power control offset parameter of the CSI-RS resource (eg, powerControlOffset) and 10log 10 (P 0) (in linear proportion). For example, if powerControlOffset is 3dB, P 0 =32, then the ratio is 18dB;

[0096] Optionally, the power control offset parameter (e.g., powerControlOffset) of the CSI-RS resource is Optionally, the ratio is equal to the power control offset parameter (e.g., powerControlOffset) of the CSI-RS resource and For example, if powerControlOffset is 3dB, P 0 =32, the ratio is -12dB.

[0097] Optionally, the first condition includes at least one of the following:

[0098] Optionally, the first sub-configuration indicates / is configured with a port subset. For example, the first sub-configuration indicates a CSI-RS antenna port subset through a high-level parameter (e.g., port-subsetIndicator);

[0099] Optionally, the first sub-configuration is not configured / associated / indicates a power offset (or a power parameter poweroffset);

[0100] Optionally, any sub-configuration (e.g., any sub-configuration in a group of sub-configurations, or any sub-configuration in N sub-configurations, or any sub-configuration in L sub-configurations) is not configured / associated / indicates a power offset (or power parameter poweroffset);

[0101] Optionally, each subconfiguration (e.g., each subconfiguration in a group of subconfigurations, or each subconfiguration in N subconfigurations, or each subconfiguration in L subconfigurations) is not configured / associated / indicated with a power offset (or power parameter poweroffset);

[0102] Optionally, the first sub-configuration indicates / is configured with a CSI-RS antenna port subset through a high-level parameter (e.g., port-subsetIndicator), and the first sub-configuration is not configured / associated with / does not indicate a power offset (or a power parameter poweroffset);

[0103] Optionally, the first sub-configuration indicates / is configured with a CSI-RS antenna port subset through a higher-level parameter (e.g., port-subsetIndicator), and any sub-configuration is not configured / associated / indicates a power offset (or a power parameter poweroffset);

[0104] Optionally, the first sub-configuration indicates / is configured with a CSI-RS antenna port subset through a high-level parameter (e.g., port-subsetIndicator), and each sub-configuration (e.g., each sub-configuration in a group of sub-configurations, or each sub-configuration in N sub-configurations, or each sub-configuration in L sub-configurations) is not configured / associated / indicates a power offset (or, a power parameter poweroffset);

[0105] Optionally, the UE does not support joint operation of power domain and spatial domain adaptation;

[0106] Optionally, the first sub-configuration indicates / is configured with a CSI-RS antenna port subset through a higher-layer parameter (eg, port-subsetIndicator), and the UE does not support a joint operation of power domain adjustment and spatial domain adjustment.

[0107] Optionally, if the first sub-configuration indicates / is configured with a port subset (for example, the first sub-configuration indicates a CSI-RS antenna port subset through a high-level parameter port-subsetIndicator), then for the CQI calculation of the first sub-configuration, the PDSCH EPRE is determined based on P (or, based on P 0 Optionally, if the first sub-configuration indicates / is configured with a port subset (for example, the first sub-configuration indicates a CSI-RS antenna port subset through a high-level parameter port-subsetIndicator), then for the CQI calculation of the first sub-configuration, the PDSCH EPRE is determined based on P ports (or, based on P 0 port determined).

[0108] Optionally, PDSCH EPRE is determined based on P (or, based on P ports), which means that PDSCH EPRE is the energy of P PDSCH ports multiplexed on one subcarrier of one OFDM symbol. 0 (Or, based on P 0 The PDSCH EPRE is multiplexed in one carrier of one OFDM symbol. 0 PDSCH EPRE is the energy of P 0 PDSCH ports multiplexedon one subcarrier of one OFDM symbol).

[0109] Since PDSCH EPRE is the sum of EPREs on CSI-RS ports that the PDSCH signal passes through, it is necessary to clarify which CSI-RS ports are here. The above method clarifies that the EPRE of PDSCH is based on all CSI-RS ports (for example, P 0 Ports) or a subset of antenna ports of CSI-RS (for example, P ports), so that the UE and the base station have the same understanding of the power assumption of the PDSCH on which the reported CQI is based, thereby improving the reliability of the communication system.

[0110] Optionally, if the first sub-configuration indicates / is configured with a port subset (for example, the first sub-configuration indicates the CSI-RS antenna port subset through a high-level parameter port-subsetIndicator), then for the CQI calculation of the first sub-configuration, the CSI-RS EPRE is based on P 0 Optionally, if the first sub-configuration indicates / is configured with a port subset (for example, the first sub-configuration indicates the CSI-RS antenna port subset through a high-level parameter port-subsetIndicator), then for the CQI calculation of the first sub-configuration, the CSI-RS EPRE is based on P. 0 The number of ports is determined by (or determined based on P ports).

[0111] Optionally, CSI-RS EPRE is determined based on P (or based on P ports), which means that CSI-RS EPRE is the energy of P CSI-RS ports multiplexed on one subcarrier of one OFDM symbol. 0 (Or, based on P 0 The CSI-RS EPRE is multiplexed in one carrier of one OFDM symbol. 0 PDSCH port energy (CSI-RS EPRE is the energy of P 0 CSI-RS ports multiplexed on one subcarrier of one OFDM symbol).

[0112] Optionally, the determination of CSI-RS EPRE based on P (or based on P ports) means that: CSI-RS EPRE is determined based on the antenna ports of the antenna port subset indicated by the first sub-configuration in a CDM group (code division multiplexing group) of the corresponding CSI-RS resource. Optionally, the determination of CSI-RS EPRE based on P (or based on P ports) means that: CSI-RS EPRE is determined based on the number of antenna ports of the antenna port subset indicated by the first sub-configuration in a CDM group of the corresponding CSI-RS resource. Optionally, a CDM group of CSI-RS resources may be a CDM group including at least one of the P ports. Optionally, a CDM group of CSI-RS resources includes at least one of the P ports. Since a CDM group may include at least one of the P ports, or a CDM group may not include any of the P ports, it is necessary to clarify which CDM group can be used for determining CSI-RS EPRE. This method can make it clear that the UE determines the EPRE of the CSI-RS only using the CDM group that includes at least one port in the indicated port subset, so that the UE and the base station have a common understanding of the EPRE of the CSI-RS, thereby improving the performance of the communication system. Optionally, a CDM group of CSI-RS resources can be any CDM group of CSI-RS resources. Optionally, a CDM group of CSI-RS resources can be the CDM group with the smallest ID / largest ID of the CSI-RS resources. For example, the antenna port subset indicates ports 3001, 3002, 3006, and 3007, where 3001 and 3002 are in a CDM group, and the CSI-RS EPRE is determined based on the sum of the energy of the CSI-RS on antenna port 3001 and the energy of the CSI-RS on antenna port 3002.

[0113] Since CSI-RS EPRE is the sum of EPREs of CSI-RS ports, it is necessary to clarify which CSI-RS ports are here. The above method clarifies that CSI-RS EPRE is based on all CSI-RS ports (for example, P 0 Ports) or a subset of antenna ports of CSI-RS (for example, P ports), so that the UE and the base station have the same understanding of the power assumption of the CSI-RS on which the reported CQI is based, thereby improving the reliability of the communication system.

[0114] The above method (e.g., the method for determining the ratio) can, when the port subset is indicated / configured, clearly calculate the power assumption used when the CQI associated with the sub-configuration is calculated, so that the base station and the UE have the same understanding of the reported CQI, thereby improving the reliability of the communication system. Optionally, the above method (e.g., the method for determining the ratio) can also be combined with P and / or P 0 The associated scaling factor adjusts the power assumption so that the base station can compare the CQIs corresponding to different sub-configurations.

[0115] Optionally, the UE sends / reports first UE capability information. Optionally, the first UE capability information indicates whether the UE supports spatial domain adaptation with CSI feedback. Optionally, if the first UE capability information indicates "support", the UE supports spatial domain adaptation with CSI feedback. Optionally, if the UE sends / reports the first UE capability information, the UE supports spatial domain adaptation with CSI feedback. Optionally, CSI feedback is based on CSI report sub-configuration(s)for periodic CSI reporting and / or single-panel type1 codebook. Optionally, the first UE capability information may be spatialAdaptation-CSI-Feedback-r18. Optionally, the first UE capability information may be spatialAdaptation-CSI-Feedback. Optionally, the first UE capability information may include a first parameter (e.g., csiFeedbackType or csiFeedbackType-r18). Optionally, the first parameter indicates CSI feedback based on CSI report sub-configuration(s). Optionally, each sub-configuration includes a port subset configuration or several CSI-RS resource IDs for CSI reporting. Optionally, the value of the first parameter can be one of a first value (e.g., sdType1), a second value (e.g., sdType2), or a third value (e.g., both). Optionally, the first value (e.g., sdType1) indicates support of type one spatial adaptation type 1. Optionally, the second value (e.g., sdType2) indicates support of type two spatial adaptation type 2.Optionally, a third value (e.g., both) indicates support of both spatial adaptation type 1 and spatial adaptation type 2. Optionally, type 1 spatial adaptation can be recorded as "SD-type1". Optionally, type 2 spatial adaptation can be recorded as "SD-type2". Optionally, type 1 spatial adaptation or SD-type1 refers to the inclusion of a port subset in the configuration (or, in a sub-configuration). Optionally, type 2 spatial adaptation or SD-type2 refers to the inclusion of several CSI-RS resource IDs in the configuration (or, in a sub-configuration).

[0116] Optionally, the UE sends / reports second UE capability information. Optionally, the second UE capability information indicates whether the UE supports spatial domain adaptation with CSI feedback. Optionally, if the second UE capability information indicates "support", the UE supports spatial domain adaptation with CSI feedback. Optionally, if the UE sends / reports second UE capability information, the UE supports spatial domain adaptation with CSI feedback. Optionally, CSI feedback based on CSI report sub-configuration(s)for semi-persistent CSI reporting on PUCCH and / or single-panel type1 codebook. Optionally, the second UE capability information can be spatialAdaptation-CSI-FeedbackPUCCH or spatialAdaptation-CSI-FeedbackPUCCH-r18. Optionally, the second UE capability information may include a second parameter (e.g., csiFeedbackType or csiFeedbackType-r18). Optionally, the second parameter indicates CSI reporting based on CSI reporting sub-configuration (indicates CSI feedback based on CSI report sub-configuration(s)). Optionally, each sub-configuration includes a port subset configuration for CSI reporting or several CSI-RS resource IDs (each sub-configuration containing one port subset configuration / list of CSI-RS resource IDs for periodic CSI reporting). Optionally, the value of the second parameter may be one of the first value (e.g., sdType1), the second value (e.g., sdType2), or the third value (e.g., both). Optionally, the first value (e.g., sdType1) indicates support for type one spatial adaptation type 1. Optionally, the second value (e.g., sdType2) indicates support for type two spatial adaptation type 2.Optionally, a third value (e.g., both) indicates support of both spatial adaptation type 1 and spatial adaptation type 2. Optionally, type 1 spatial adaptation can be recorded as "SD-type1". Optionally, type 2 spatial adaptation can be recorded as "SD-type2". Optionally, type 1 spatial adaptation or SD-type1 refers to the inclusion of a port subset in the configuration (or, in a sub-configuration). Optionally, type 2 spatial adaptation or SD-type2 refers to the inclusion of several CSI-RS resource IDs in the configuration (or, in a sub-configuration).

[0117] Optionally, the UE sends / reports third UE capability information. Optionally, the third UE capability information indicates whether the UE supports spatial domain adaptation with CSI feedback. Optionally, if the third UE capability information indicates "support", the UE supports spatial domain adaptation with CSI feedback. Optionally, if the UE sends / reports third UE capability information, the UE supports spatial domain adaptation with CSI feedback. Optionally, CSI feedback based on CSI report sub-configuration(s)for semi-persistent CSI reporting on PUSCH and / or single-panel type1 codebook. Optionally, the third UE capability information may be spatialAdaptation-CSI-FeedbackPUSCH. Optionally, the third UE capability information may be spatialAdaptation-CSI-FeedbackPUSCH-r18. Optionally, the third UE capability information may include a third parameter (e.g., csiFeedbackType or csiFeedbackType-r18). Optionally, the third parameter indicates CSI feedback based on CSI report sub-configuration(s). Optionally, each sub-configuration includes one port subset configuration / list of CSI-RS resource IDs for periodic CSI reporting. Optionally, the value of the third parameter may be one of the first value (e.g., sdType1), the second value (e.g., sdType2), or the third value (e.g., both). Optionally, the first value (e.g., sdType1) indicates support for type 1 spatial adaptation (indicates support of spatial adaptation type 1). Optionally, the second value (e.g., sdType2) indicates support for type 2 spatial adaptation (indicates support of spatial adaptation type 2).Optionally, a third value (e.g., both) indicates support of both spatial adaptation type 1and spatial adaptation type 2. Optionally, type 1 spatial adaptation can be recorded as "SD-type1". Optionally, type 2 spatial adaptation can be recorded as "SD-type2". Optionally, type 1 spatial adaptation or SD-type1 refers to the inclusion of a port subset in the configuration (or, in a sub-configuration). Optionally, type 2 spatial adaptation or SD-type2 refers to the inclusion of several CSI-RS resource IDs in the configuration (or, in a sub-configuration).

[0118] Optionally, the UE sends / reports fourth UE capability information. Optionally, the fourth UE capability information indicates whether the UE supports spatial domain adaptation with CSI feedback. Optionally, if the fourth UE capability information indicates "support", the UE supports spatial domain adaptation with CSI feedback. Optionally, if the UE sends / reports the fourth UE capability information, the UE supports spatial domain adaptation with CSI feedback. Optionally, CSI feedback is based on CSI report sub-configuration(s)for aperiodic CSI reporting on PUSCH and / or single-panel type1 codebook. Optionally, the fourth UE capability information may be spatialAdaptation-CSI-FeedbackAperiodic. Optionally, the fourth UE capability information may be spatialAdaptation-CSI-FeedbackAperiodic-r18. Optionally, the fourth UE capability information may include a fourth parameter (e.g., csiFeedbackType or csiFeedbackType-r18). Optionally, the fourth parameter indicates CSI feedback based on CSI reporting sub-configuration (indicates CSI feedback based on CSIreport sub-configuration(s)). Optionally, each sub-configuration includes a port subset configuration or several CSI-RS resource IDs for periodic CSI reporting (each sub-configuration containing one port subset configuration / list of CSI-RS resource IDs for periodic CSI reporting). Optionally, the value of the fourth parameter may be one of the first value (e.g., sdType1), the second value (e.g., sdType2), or the third value (e.g., both). Optionally, the first value (e.g., sdType1) indicates support for type one spatial adaptation type 1. Optionally, the second value (e.g., sdType2) indicates support for type two spatial adaptation type 2.Optionally, a third value (e.g., both) indicates support of both spatial adaptation type 1 and spatial adaptation type 2. Optionally, type 1 spatial adaptation can be recorded as "SD-type1". Optionally, type 2 spatial adaptation can be recorded as "SD-type2". Optionally, type 1 spatial adaptation or SD-type1 refers to the inclusion of a port subset in the configuration (or, in a sub-configuration). Optionally, type 2 spatial adaptation or SD-type2 refers to the inclusion of several CSI-RS resource IDs in the configuration (or, in a sub-configuration).

[0119] Optionally, the UE sends / reports fifth UE capability information. Optionally, the fifth UE capability information indicates whether the UE supports power domain adaptation with CSI feedback. Optionally, if the fifth UE capability information indicates "support", the UE supports power domain adaptation with CSI feedback. Optionally, if the UE sends / reports the fifth UE capability information, the UE supports power domain adaptation with CSI feedback. Optionally, CSI feedback is based on CSI report sub-configuration(s)for periodic CSI reporting and / or single-paneltype1codebook for periodic CSI reporting. Optionally, the UE supports CSI feedback based on CSI reporting sub-configuration, wherein each sub-configuration includes a power offset. Optionally, the fifth UE capability information indicates that the UE supports CSI feedback based on CSI reporting sub-configuration, wherein each sub-configuration includes a power offset. Optionally, the fifth UE capability information may be powerAdaptation-CSI-Feedback-r18. Optionally, the fifth UE capability information may be powerAdaptation-CSI-Feedback.

[0120] Optionally, the UE sends / reports sixth UE capability information. Optionally, the sixth UE capability information indicates whether the UE supports power domain adjustment with CSI feedback. Optionally, if the sixth UE capability information indicates "support", the UE supports power domain adjustment with CSI feedback. Optionally, if the UE sends / reports the sixth UE capability information, the UE supports power domain adjustment with CSI feedback. Optionally, CSI feedback based on CSI report sub-configuration(s)for semi-persistent CSI reporting on PUCCH and / or single-panel type1 codebook. Optionally, the UE supports CSI feedback based on CSI reporting sub-configuration(s)for semi-persistent CSI reporting on PUCCH and / or single-panel type1 codebook. Optionally, the UE supports CSI feedback based on CSI reporting sub-configuration, wherein each sub-configuration includes a power offset. Optionally, the sixth UE capability information indicates that the UE supports CSI feedback based on CSI reporting sub-configuration, wherein each sub-configuration includes a power offset. Optionally, the sixth UE capability information may be powerAdaptation-CSI-FeedbackPUCCH. Optionally, the sixth UE capability information may be powerAdaptation-CSI-FeedbackPUCCH-r18.

[0121] Optionally, the UE sends / reports seventh UE capability information. Optionally, the seventh UE capability information indicates whether the UE supports power domain adjustment with CSI feedback. Optionally, if the seventh UE capability information indicates "support", the UE supports power domain adjustment with CSI feedback. Optionally, if the UE sends / reports the seventh UE capability information, the UE supports power domain adjustment with CSI feedback. Optionally, CSI feedback based on CSI report sub-configuration(s)for semi-persistent CSI reporting on PUSCH and / or single-panel type1 codebook. Optionally, the UE supports CSI feedback based on CSI reporting sub-configuration, wherein each sub-configuration includes a power offset. Optionally, the seventh UE capability information indicates that the UE supports CSI feedback based on CSI reporting sub-configuration, wherein each sub-configuration includes a power offset. Optionally, the seventh UE capability information may be powerAdaptation-CSI-FeedbackPUSCH. Optionally, the seventh UE capability information may be powerAdaptation-CSI-FeedbackPUSCH-r18.

[0122] Optionally, the UE sends / reports the eighth UE capability information. Optionally, the eighth UE capability information indicates whether the UE supports power domain adjustment with CSI feedback. Optionally, if the eighth UE capability information indicates "support", the UE supports power domain adjustment with CSI feedback. Optionally, if the UE sends / reports the eighth UE capability information, the UE supports power domain adjustment with CSI feedback. Optionally, CSI feedback is based on CSI report sub-configuration(s)for semi-persistentCSI reporting on PUSCH and / or single-panel type1 codebook for non-periodic CSI reporting. Optionally, the UE supports CSI feedback based on CSI reporting sub-configuration, wherein each sub-configuration includes a power offset. Optionally, the eighth UE capability information indicates that the UE supports CSI feedback based on CSI reporting sub-configuration, wherein each sub-configuration includes a power offset. Optionally, the eighth UE capability information may be powerAdaptation-CSI-FeedbackAperiodic. Optionally, the eighth UE capability information may be powerAdaptation-CSI-FeedbackAperiodic-r18.

[0123] Optionally, the UE sends / reports ninth UE capability information. Optionally, the ninth UE capability information indicates whether the UE supports spatial domain adaptation and power domain adaptation. Optionally, the ninth UE capability information indicates whether the UE supports joint operation of spatial domain adaptation and power domain adaptation. Optionally, if the ninth UE capability information indicates "support", the UE supports joint operation of spatial domain adjustment and power domain adjustment. Optionally, if the UE sends / reports the ninth UE capability information, the UE supports joint operation of spatial domain adjustment and power domain adjustment. Optionally, the ninth UE capability information is, for example: jointPowerSpatialAdaptation or jointPowerSpatialAdaptation-r18.

[0124] When the base station performs the first type of spatial domain adjustment, since the total number of antenna ports used for transmission will change, the total power of downlink transmission will change (for example, the total power on all antenna ports used for downlink transmission changes) while the transmission power of each antenna port remains unchanged. In this case, if the UE does not support power domain adjustment (and / or the UE does not support joint adjustment of power domain and spatial domain), the base station cannot configure a power offset for the UE in the sub-configuration to reflect the change in the total power used for downlink transmission, and thus cannot calculate the corresponding CSI. A method for associating / limiting at least one capability information from the first capability information to the ninth capability information is provided below.

[0125] Optionally, if the UE reports / indicates first capability information, and the value of the first parameter in the first capability information is the first value (e.g., SD-type1) or the third value (e.g., both), the UE also reports / indicates fifth capability information and / or ninth capability information. This method for UE capability reporting can ensure that the UE supports the first type of spatial domain adjustment based on periodic CSI reporting, while also supporting power domain adjustment based on periodic CSI reporting and / or supporting joint adjustment of power domain and spatial domain, so that the base station can configure power offset on the UE sub-configuration in the case of the first type of spatial domain adjustment, thereby improving the flexibility of CSI calculation.

[0126] Optionally, if the UE reports / indicates the second capability information, and the value of the second parameter in the second capability information is the first value (e.g., SD-type1) or the third value (e.g., both), the UE also reports / indicates the sixth capability information and / or the ninth capability information. This method for UE capability reporting can ensure that the UE, while supporting the capability of the first type of spatial domain adjustment based on the upper half-continuous CSI reporting of PUCCH, also supports the power domain adjustment based on the upper half-continuous CSI reporting of PUCCH and / or supports the joint adjustment of the power domain and the spatial domain, so that the base station can configure the power offset on the UE's sub-configuration in the case of the first type of spatial domain adjustment, thereby improving the flexibility of CSI calculation.

[0127] Optionally, if the UE reports / indicates third capability information, and the value of the third parameter in the third capability information is the first value (e.g., SD-type1) or the third value (e.g., both), the UE also reports / indicates the seventh capability information and / or the ninth capability information. This method for UE capability reporting can ensure that the UE, while supporting the capability of the first type of spatial domain adjustment based on the upper half continuous CSI reporting of PUSCH, also supports power domain adjustment based on the upper half continuous CSI reporting of PUSCH and / or supports joint adjustment of power domain and spatial domain, so that the base station can configure the power offset on the UE's sub-configuration in the case of the first type of spatial domain adjustment, thereby improving the flexibility of CSI calculation.

[0128] Optionally, if the UE reports / indicates fourth capability information, and the value of the fourth parameter in the fourth capability information is the first value (e.g., SD-type1) or the third value (e.g., both), the UE also reports / indicates eighth capability information and / or ninth capability information. This method for UE capability reporting can ensure that the UE supports the first type of spatial domain adjustment capability based on non-periodic CSI reporting, and also supports power domain adjustment based on non-periodic CSI reporting and / or supports joint adjustment of power domain and spatial domain, so that the base station can configure power offset on the UE sub-configuration in the case of the first type of spatial domain adjustment, thereby improving the flexibility of CSI calculation.

[0129] The above method for UE capability reporting can ensure that the UE, while supporting the first type of spatial domain adjustment capability, also supports power domain adjustment and / or supports joint adjustment of power domain and spatial domain, so that the base station can configure power offset on the UE sub-configuration in the case of the first type of spatial domain adjustment, thereby improving the flexibility of CSI calculation.

[0130] Optionally, the UE reports / calculates / determines the PMI associated with the first sub-configuration. Optionally, when the first condition and / or the second condition is met, the codebook index corresponding to / associated with the PMI associated with (or reported by) the first sub-configuration is shown in Table A, where P 0 The definition of is as above. Optionally, the second condition includes: the high-level parameter (e.g., codebookType) configured by the UE is set to "type I single panel" ('typeISinglePanel'). This method can clarify the determination method of the PMI matrix when the port subset is indicated, so that the base station and the UE have the same understanding of the reported PMI value, thereby improving the reliability of the communication system.

[0131]

[0132] Table A. Codebooks for 1-layer and 2-layer CSI reporting using antenna ports 3000 to 3001

[0133] (Codebooks for 1-layer and 2-layer CSI reporting using antenna ports3000to 3001)

[0135] The following uses a variety of implementation methods to illustrate how to use sub-configuration to determine / calculate / report CSI related to a single TRP and / or multiple TRPs. The following implementation methods can be appropriately modified and / or combined.

[0136] Optionally, the CSI reporting configuration may include / configure a CSI-RS resource set (e.g., a resource set provided by a higher-level parameter NZP-CSI-RS-ResourceSet). Optionally, the CSI-RS resource set may be used for channel measurement. Optionally, the CSI resource set may be referred to as a "CSI-RS resource set corresponding to the CSI reporting configuration" or as a "first resource set". Optionally, the CSI reporting configuration may (also) include / configure a CSI-RS resource set for interference measurement (e.g., a resource set provided by a higher-level parameter NZP-CSI-RS-ResourceSet). Optionally, the CSI resource set used for interference measurement may be referred to as a "second resource set".

[0137] Optionally, the first resource set may include (or be configured with) one or more (for example, K s K s ≥1 or K s ≥2) resources. Optionally, the first resource set may include (or be configured with) one or more (for example, N ABC N ABC ≥1 or N ABC ≥2) groups. Optionally, N ABC resource groups (one of them) can be represented as group j, where j belongs to / has a value range of 1, 2, ..., N ABC Optionally, N ABC It can be configured by high-level parameters, or determined based on UE capabilities, or predefined (for example, one of 1, 2, 4, and 8). Optionally, for group j, the number of resources it includes is K j Optionally, the sum of resources in all groups included in the first resource set is equal to the number of resources in the first resource set, for example,

[0138] Optionally, N ABC Resource groups can be determined by high-level parameters (for resource grouping).

[0139] Optionally, for a group of sub-configurations (e.g., L sub-configurations), the first resource set may include / correspond to the same resource group. For example, for a group of sub-configurations (e.g., L sub-configurations), all sub-configurations share the same N ABC For example, the high-level parameter may be configured / included in a high-level parameter for configuring the first resource set, wherein one or more groups corresponding to each sub-configuration are determined based on the high-level parameter.

[0140] Optionally, for a group of sub-configurations (e.g., L sub-configurations), one or more groups included in the first resource set are determined for each sub-configuration. For example, each sub-configuration includes / is configured with a high-level parameter, and one or more groups corresponding to each sub-configuration are determined based on the high-level parameter corresponding to / included by the sub-configuration.

[0141] Optionally, one / each sub-configuration (in the group of sub-configurations, or in the L sub-configurations) may correspond to / configure / include: high-level parameters for determining one or more groups included in the first resource set.

[0142] The following specifically describes how the high-level parameters (used for resource grouping) are grouped for the CSI resource set (eg, the first resource set).

[0143] Optionally, the high-level parameters include N ABC -1 parameter (for example, a high-level parameter consists of N ABC -1 parameter) or N ABC parameters (for example, high-level parameters include N ABC The jth parameter represents / indicates the number of resources in group j (K j ). When the high-level parameters include N ABC When there are 1 parameter, the first K in the CSI resource set 1 resources belong to group 1; the first K in the CSI resource set 1 K after resources 2 resources belong to group 2, ..., the first K after resources j resources belong to group j. When the high-level parameters include N ABC -1 parameter, the first K in the CSI resource set 1 resources belong to group 1; the first K in the CSI resource set 1 K after resources 2 resources belong to group 2, ..., the first K after resources j Resources belong to group j. Group N ABC The resources in the CSI resource collection are resources. For example, when N ABC When equal to 2, the high-level parameter may be nrofResourcesGroup1.

[0144] Optionally, the high-level parameters may include a ABCThe jth parameter represents / indicates one or more resources in group j. Optionally, the one or more resources are indicated by a resource ID (e.g., NZP-CSI-RS-ResourceId), or by an index of the resource in the first resource set.

[0145] Optionally, N ABC There is no intersection between the resources in each group. Optionally, N ABC There is no intersection between the resources of any two groups. For example, N ABC No two resources in the groups have the same ID.

[0146] Through the above method, the first resource set can be divided into one or more groups, and the resources in each group are used for measuring a TRP, thereby facilitating the reporting of CSI for one or more TRPs, improving the accuracy of CSI, and improving the performance of the communication system.

[0147] Optionally, the first resource set may include (or be configured with) one or more (for example, N com N com ≥1) resource combination. Optionally, one / each resource combination may include multiple (or, one or more) resources. Optionally, the number of resources included in a resource combination is less than or equal to N ABC . Optionally, when N com When N is equal to 2, the term "resource combination" can be interchanged with "resource pair". com The number of resources included in each resource combination in the resource combinations is the same. Optionally, one or more or each resource included in one / each resource combination is from different groups (e.g., different groups in the first resource set). For example, a resource combination includes: resource #1, resource #2, and resource #3, and they are from group 1, group 2, and group 3, respectively. For example, a resource combination includes: resource #1, resource #2, and they are from group 1 and group 3, respectively.

[0148] Optionally, N com A resource combination can be determined by high-level parameters (used to configure resource combinations).

[0149] Optionally, for a group of sub-configurations (e.g., L sub-configurations), the first resource set may include / correspond to the same (one or more) resource combinations. For example, for a group of sub-configurations (e.g., L sub-configurations), all sub-configurations share the same N comFor example, the high-level parameter may be configured / included in a high-level parameter used to configure the first resource set, wherein one or more resource combinations corresponding to each sub-configuration are determined based on the high-level parameter.

[0150] Optionally, for a group of sub-configurations (e.g., L sub-configurations), the one or more resource combinations included in the first resource set are determined for each sub-configuration. For example, each sub-configuration includes / is configured with a high-level parameter, and the one or more resource combinations corresponding to each sub-configuration are determined based on the high-level parameters corresponding to / included by the sub-configuration. For example, if one sub-configuration in a group of sub-configurations is configured to configure a high-level parameter of a resource combination, then the resources corresponding to the sub-configuration include N com For example, if the i-th sub-configuration in the set of sub-configurations (eg, L sub-configurations) is configured with high-level parameters for configuring resource combinations, then the resources corresponding to the i-th sub-configuration include the N com Optionally, i≥1 and / or i≤L.

[0151] Optionally, one / each sub-configuration (in the group of sub-configurations, or in the L sub-configurations) may correspond to / configure / include: high-level parameters for configuring resource combinations.

[0152] The following specifically describes how the high-level parameters (used to configure resource combinations) configure resource combinations in a CSI resource set (eg, a first resource set). Optionally, the high-level parameters include N com parameters (for example, N com Optionally, the high-level parameters include a list of N com parameters, wherein each parameter represents / indicates one or more resources (and groups corresponding to one or more resources). Optionally, the one or more resources are from different groups (for example, different groups in the first resource set). Optionally, (when the number of resources in a resource combination is equal to N ABC When equal,) one or more resources and N ABC The groups can be mapped one-to-one. For example, the jth resource corresponds to group j. Optionally, (when the number of a resource combination is less than N ABC ,) the groups corresponding to the one or more resources are indicated separately. Optionally, the one or more resources are indicated by a resource ID (e.g., NZP-CSI-RS-ResourceId), or, by an index of the resource in the first resource set, or, by an index of the resource in the corresponding group.

[0153] Through the above method, one or more resource combinations from the first resource set can be determined, wherein different resources in the resource combination correspond to different TRPs. Therefore, by determining one or more resource combinations corresponding to the sub-configuration, joint measurement of different TRPs can be facilitated to improve the accuracy of CSI and the performance of the communication system.

[0154] The above method discusses a method for determining one or more resource combinations corresponding to a sub-configuration. The following further discusses a method for determining one or more resources corresponding to a sub-configuration. It should be noted that a sub-configuration may correspond to one or more resource combinations (for example, a resource combination includes multiple resources) or one or more resources. The calculation method of the CSI corresponding to a resource combination and the CSI corresponding to a resource may be different.

[0155] Optionally, the CSI reporting configuration may be configured / include a high-level parameter (e.g., sharedCMR). Optionally, the high-level parameter is used to enable sharing of channel measurement resources between different CSI measurement hypotheses (Enables sharing ofchannel measurement resources between different CSI measurement hypotheses). Optionally, the high-level parameter may be used to enable different sub-configurations to share channel measurement resources. Optionally, the high-level parameter may be used to enable channel measurement resource sharing of one or more resources and one or more resource combinations between different sub-configurations. Optionally, the high-level parameter may be referred to as a "resource sharing parameter". Optionally, for one or more sub-configurations (e.g., L sub-configurations, or N sub-configurations), the first resource set may include / correspond to the same resource sharing parameter. For example, for one or more sub-configurations (e.g., L sub-configurations, or N sub-configurations), the resources corresponding to all / each / one sub-configuration are determined based on the resource sharing parameter.

[0156] Optionally, for one or more sub-configurations (for example, L sub-configurations, or N sub-configurations), one / each sub-configuration may correspond to / configure / include: a resource sharing parameter.

[0157] Optionally, one / each subconfiguration (in the group of subconfigurations, or in the L subconfigurations, or in the N subconfigurations) may correspond to / configure / include at least one of the following: a first parameter; a second parameter.

[0158] Optionally, the resources corresponding to a subconfiguration are determined based on at least one of a first parameter (contained / configured in the subconfiguration), a second parameter (contained / configured in the subconfiguration), and a resource sharing parameter (contained / configured in the subconfiguration, or corresponding to the CSI reporting configuration). For example, the resources corresponding to the i-th subconfiguration in a group of subconfigurations (e.g., L subconfigurations) are determined based on at least one of a first parameter (contained / configured in the i-th subconfiguration), a second parameter (contained / configured in the i-th subconfiguration), and a resource sharing parameter (contained / configured in the i-th subconfiguration, or corresponding to the CSI reporting configuration).

[0159] Optionally, the first parameter is used to indicate one or more (for example, N ABC ) group. Optionally, if a sub-configuration includes / is configured with the first parameter, the resources corresponding to the sub-configuration include: N ABC resources in one or more groups related to / indicated by / corresponding to the first parameter in the groups. Optionally, if a sub-configuration includes / is configured with the first parameter, the resources corresponding to the sub-configuration include: N ABC The resources in one or more groups in a group that are associated with the first parameter.

[0160] Optionally, N ABC Taking "group 1", "group 2" and "Both" as an example, the value of the first parameter can correspond to at least three values. For example, the three values ​​are "Group 1", "Group 2" and "Both" respectively. When the value of the first parameter included in a sub-configuration is "Group 1", the resources corresponding to the sub-configuration include the resources in group 1. When the value of the first parameter included in a sub-configuration is "Group 2", the resources corresponding to the sub-configuration include the resources in group 2. When the value of the first parameter included in a sub-configuration is "Both", the resources corresponding to the sub-configuration include the resources in group 1 and group 2. Optionally, the value of the first parameter can be a specific value (for example, "None"). For example, when the value of the first parameter included in a sub-configuration is "None", the sub-configuration does not correspond to N ABC Optionally, if a sub-configuration is configured with high-level parameters for configuring resource combinations (or, if a sub-configuration is configured with N com resource combinations), the value of the first parameter may be a specific value (e.g., "None"). For example, if a sub-configuration is configured with a high-level parameter for configuring a resource combination, and the value of the first parameter included in the sub-configuration is "None", then the resources corresponding to the sub-configuration include (only) N com A resource combination (the resources in it).

[0161] Optionally, the first parameter may be a bitmap. Optionally, the bitmap includes N ABC Optionally, each bit of the bitmap corresponds to N ABC A group in a group. For example, N in the bitmap ABC bits and N ABC The groups are mapped one by one. For example, the jth bit (starting from the least significant bit (LSB) or the most significant bit (MSB)) corresponds to group j. When a bit is a specific value (e.g., 1 or 0), the resources corresponding to the corresponding sub-configuration include the resources of the group corresponding to the bit. When a bit is another specific value (e.g., 0 or 1), the resources corresponding to the corresponding sub-configuration do not include the resources of the group corresponding to the bit.

[0162] Optionally, if a sub-configuration includes / is configured with a first parameter and does not include / is not configured with a second parameter, the resources corresponding to the sub-configuration include: all resources in a group determined based on the first parameter. Here, the description of the second parameter is as follows.

[0163] Optionally, if a sub-configuration includes / is configured with a first parameter and does not include / is not configured with a second parameter (and the CSI reporting configuration is not configured with / does not include a resource sharing parameter), the resources corresponding to the sub-configuration include: all resources in a group determined based on the first parameter. Here, the description of the second parameter is as follows.

[0164] Optionally, if a sub-configuration includes / is configured with a first parameter, (and does not include / is not configured with a second parameter,) and the CSI reporting configuration is configured / includes a resource sharing parameter, the resources corresponding to the sub-configuration include: a specific resource in a group determined based on the first parameter. Here, the description of the second parameter is as follows. Optionally, the specific resource includes / refers to a resource (in a group determined based on the first parameter) that is not referenced by a combination of resources corresponding to all sub-configurations (or, any one sub-configuration) of one or more sub-configurations (e.g., L sub-configurations, or, N sub-configurations). Here, the term "reference" can be replaced with "include" or "use". Optionally, the specific resource includes / refers to a resource other than a resource referenced by a combination of resources corresponding to all sub-configurations (or, any one sub-configuration) of one or more sub-configurations (e.g., L sub-configurations, or, N sub-configurations) (in a group determined based on the first parameter). Optionally, the specific resource does not include a resource referenced by a combination of resources corresponding to all sub-configurations (or, any one sub-configuration) of one or more sub-configurations (e.g., L sub-configurations, or, N sub-configurations). For example, a CSI reporting configuration includes three sub-configurations: sub-configuration #1, sub-configuration #2, and sub-configuration #3, and the CSI reporting configuration is configured with resource sharing parameters. The first resource set corresponding to the CSI reporting configuration includes resources including: CSI-RS #1, CSI-RS #2, CSI-RS #3, CSI-RS #4, CSI-RS #5, CSI-RS #6, CSI-RS #7, and CSI-RS #8, wherein the first four resources belong to group 1, and the last four resources belong to group 2; sub-configuration #1 includes a first parameter, which indicates the resources of group 1; sub-configuration #2 includes a first parameter, which indicates the resources of group 2; sub-configuration #3 corresponds to resource combination #1 and resource combination #2, wherein resource combination #1 includes CSI-RS #1 and CSI-RS #5, and resource combination #2 includes CSI-RS #2 and CSI-RS #6. For sub-configuration #1, its corresponding resources include resources in group 1 except for resources included / referenced by the resource combination corresponding to sub-configuration #3, that is, CSI-RS #1, CSI-RS #2, CSI-RS #3, and CSI-RS #4 are excluded, that is, CSI-RS #3 and CSI-RS #4. Similarly, for sub-configuration #2, its corresponding resources include resources in group 2 except for resources included / referenced by the resource combination corresponding to sub-configuration #3, that is, CSI-RS #5, CSI-RS #6, CSI-RS #7, and CSI-RS #8 are excluded, that is, CSI-RS #7 and CSI-RS #8.

[0165] Optionally, if a sub-configuration does not include / is not configured with the first parameter, (and does not include / is not configured with the second parameter,) and the CSI reporting configuration is configured / includes a resource sharing parameter, then the resources corresponding to the sub-configuration include: N ABC The specific resource in all groups (or the first group, or any group, or the last group) in the group. Here, the description of the second parameter is as follows. Optionally, the specific resource includes / refers to (N ABC A resource in all groups (or the first group, or any one group, or the last group) in a group that is not referenced by a combination of resources corresponding to all subconfigurations (or any one subconfiguration) in one or more subconfigurations (for example, L subconfigurations, or N subconfigurations). Here, the term "reference" can be replaced with "include" or "use". Optionally, the specific resource includes / refers to resources other than resources referenced by a combination of resources corresponding to all subconfigurations (or any one subconfiguration) in one or more subconfigurations (for example, L subconfigurations, or N subconfigurations) (in a group determined based on the first parameter). Optionally, the specific resource does not include resources referenced by a combination of resources corresponding to all subconfigurations (or any one subconfiguration) in one or more subconfigurations (for example, L subconfigurations, or N subconfigurations).

[0166] Optionally, if the i-th sub-configuration in a group of sub-configurations (eg, L sub-configurations) is not configured with the second parameter and / or the CSI reporting configuration is not configured with the resource sharing parameter, then the N corresponding to the i-th sub-configuration is ABC The resources in at least one of the groups include: ABC A resource in one or more of the groups is not referenced by a resource combination corresponding to any sub-configuration in the group of sub-configurations; or, N ABC A resource in one or more of the groups that is not referenced by a resource combination corresponding to any sub-configuration in one or more sub-configurations (for example, N sub-configurations).

[0167] Optionally, the second parameter is used to indicate one or more resources in the first resource set (for example, a resource subset of the first resource set). Optionally, one / each subconfiguration (in the group of subconfigurations, or in the L subconfigurations, or in the N subconfigurations) can be configured with a second parameter (for example, a CSI-RS resource list). For example, one / each subconfiguration can be configured with a CSI-RS resource list through a high-level parameter (nzp-CSI-RS-resourceList). Optionally, the list indicates one or more CSI-RS resources. Optionally, the one or more CSI-RS resources are within the first resource set. Optionally, if a subconfiguration is configured with a second parameter, the resources corresponding to the subconfiguration include one or more resources (CSI-RS resources) indicated by the second parameter. Optionally, the first resource set is used for channel measurement. Optionally, the first resource set corresponds to a CSI reporting configuration. Optionally, the CSI-RS resource indicated by the second parameter of the subconfiguration may be the same as the CSI-RS resource indicated by the second parameter of other subconfigurations (e.g., other subconfigurations corresponding to the same CSI reporting configuration, or other subconfigurations in N or L subconfigurations corresponding to the same CSI reporting configuration), or the CSI-RS resources in the list of the subconfiguration may have no intersection with the CSI-RS resources indicated by the second parameters of other subconfigurations (e.g., other subconfigurations corresponding to the same CSI reporting configuration, or other subconfigurations in N or L subconfigurations corresponding to the same CSI reporting configuration). Optionally, if the CSI reporting configuration is not configured with a resource sharing parameter, there is no intersection between the resources corresponding to the i-th subconfiguration in a group of subconfigurations and the resources corresponding to other subconfigurations in a group of subconfigurations other than the i-th subconfiguration.

[0168] When a subconfiguration (in the group of subconfigurations, or in the L subconfigurations, or in the N subconfigurations) is not configured with the first parameter, the resources corresponding to the subconfiguration include N ABC The resources in all groups in the group (or the resources in the first group, or the resources in the last group). When a sub-configuration (in the group of sub-configurations, or in the L sub-configurations, or in the N sub-configurations) is not configured with the first parameter, the resources corresponding to the sub-configuration do not include N ABC All groups in the group (or, N ABC When a subconfiguration (in the group of subconfigurations, or in the L subconfigurations, or in the N subconfigurations) is configured with high-level parameters for configuring resource combinations (or if a subconfiguration is configured with N comresource combination), and the sub-configuration is not configured with the first parameter, the resources corresponding to the sub-configuration (only) include N com A resource combination (the resources in it).

[0169] In the above method, the second parameter in a sub-configuration is used to indicate a subset of resources in the first resource set (or resources in the group corresponding to the sub-configuration). The following describes how to use the second parameter, or how to use the first parameter and the second parameter together.

[0170] Optionally, if the i-th sub-configuration in a group of sub-configurations is configured with a first parameter and a second parameter, the resources corresponding to the i-th sub-configuration include the resources indicated by the second parameter in the resources of one or more groups determined by the first parameter; and / or, if the i-th sub-configuration is configured with the first parameter and the i-th sub-configuration is not configured with the second parameter and / or the CSI reporting configuration is configured with the resource sharing parameter, then the resources corresponding to the i-th sub-configuration include all resources in the resources of one or more groups determined by the first parameter.

[0171] Optionally, the second parameter is used to indicate one or more resources (e.g., resource subsets) in one or more groups (of each group) in the first resource set. Optionally, the one or more groups may be determined based on the first parameter. Optionally, the one or more groups may be N ABC Optionally, when one / each sub-configuration (of the group of sub-configurations, or of the L sub-configurations, or of the N sub-configurations) does not include / is not configured with the first parameter, the one or more groups may be N ABC All groups in the group, or the first group, or the last group). Optionally, one / each subconfiguration (in the group of subconfigurations, or in the L subconfigurations, or in the N subconfigurations) may be configured with a first parameter and a second parameter. Optionally, the number of groups determined based on the first parameter is N. group (N group ≥1). For example, one / each sub-configuration may be configured via a higher layer parameter (e.g., nzp-CSI-RS-resourceList). group CSI-RS resource parameters (eg, CSI-RS resource list). Optionally, N group CSI-RS resource parameters and N group For example, the first CSI-RS resource parameter corresponds to N group The first in the group; the second CSI-RS resource parameter corresponds to N group The second in the group; ...; the xth CSI-RS resource parameter corresponds to Ngroup The first parameter is the xth one in the group (x≥1). Optionally, each list indicates one or more CSI-RS resources. Optionally, the one or more CSI-RS resources are from resources in the first resource set. Optionally, the one or more CSI-RS resources are from resources in the group corresponding to the list / parameter. Optionally, when one / each subconfiguration (in the group of subconfigurations, or in the L subconfigurations, or in the N subconfigurations) is configured with the first parameter and the second parameter, the resources corresponding to the subconfiguration include the resources indicated by the second parameter in the group determined based on the first parameter (for example, N group The resources in each group are indicated by the corresponding CSI-RS resource list).

[0172] Optionally, the number of one or more resources corresponding to a sub-configuration (for example, determined using the above method) is M.

[0173] The above method can be used to determine (one or more) resources and / or (one or more) resource combinations corresponding to a subconfiguration. In general, the UE can determine the corresponding CSI based on a specific resource or a specific resource combination. If a subconfiguration corresponds to one or more resources, and / or one or more resource combinations, the UE can determine the corresponding CSI for each resource and / or each resource combination (and select a part of them, or one of them for reporting). The following describes that when a subconfiguration includes / is configured with a third parameter, which resources and / or which resource combinations corresponding to the subconfiguration can determine / calculate the corresponding CSI based on the third parameter, or when a subconfiguration includes / is configured with a third parameter, which resources and / or which resource combinations corresponding to the subconfiguration are applicable to the third parameter. (For CSI determination,) the method of mapping the third parameter included in a subconfiguration to the resources and / or which resource combinations corresponding to the subconfiguration can be at least one of the following, or the method of determining which resources and / or which resource combinations corresponding to the subconfiguration to which the third parameter included in a subconfiguration is applicable can be at least one of the following:

[0174] Method 1

[0175] The third parameter included / corresponding to a sub-configuration is applicable to / corresponds to (all) resources and / or (all) resource combinations corresponding to the sub-configuration. Optionally, if a sub-configuration includes / is configured with (a) third parameter, the third parameter is applicable to all (or, each) resources and / or resource combinations corresponding to the sub-configuration. Optionally, if a sub-configuration includes / is configured with (a) third parameter, the CSI corresponding to (each of) all resources and / or resource combinations corresponding to the sub-configuration is determined based on the third parameter.

[0176] Method 2

[0177] One or more third parameters included in / corresponding to a subconfiguration are respectively applicable to / correspond to (all) resources corresponding to the subconfiguration and to (all) resource combinations corresponding to the subconfiguration. Optionally, if a subconfiguration includes / is configured with one or more (e.g., two) third parameters, a portion of the third parameters (e.g., the first third parameter, or one third parameter) is applicable to (all) resources corresponding to the subconfiguration; and / or, another portion of the third parameters (e.g., the second third parameter, or another third parameter) is applicable to (resources in) (all) resource combinations corresponding to the subconfiguration. Optionally, if a subconfiguration includes / is configured with one or more (e.g., two) third parameters, the CSI corresponding to (each of) (all) resources corresponding to the subconfiguration is determined based on a portion of the third parameters (e.g., the first third parameter, or one third parameter); and / or, the CSI corresponding to (each of) (all) resource combinations corresponding to the subconfiguration is determined based on another portion of the third parameters (e.g., the second third parameter, or another third parameter).

[0178] Method 3

[0179] One or more third parameters included / corresponding to a subconfiguration are respectively applicable to / correspond to the resources of one or more groups corresponding to the subconfiguration. Optionally, the one or more third parameters correspond one-to-one to the one or more groups. Optionally, if a subconfiguration includes / is configured with one or more third parameters, the third parameter corresponding to group j corresponding to the subconfiguration (or, the jth third parameter corresponding to the subconfiguration) is applicable to the resources in group j corresponding to the subconfiguration. Optionally, if a subconfiguration includes / is configured with one or more third parameters, the CSI corresponding to the resources of group j corresponding to the subconfiguration is based on the third parameter corresponding to group j. Here, the resources of group j may include the resources belonging to group j in the one or more resources corresponding to the subconfiguration. The resources of group j may include the resources belonging to group j in the one or more resource combinations corresponding to the subconfiguration.

[0180] Optionally, if the i-th subconfiguration in a group of subconfigurations (e.g., L subconfigurations) is configured with a third parameter (wherein the third parameter at least includes a parameter for indicating a port subset and / or a parameter for indicating a power offset), then the third parameter applies to at least one of the following: all resources corresponding to the i-th subconfiguration; ABC The resources in at least one group in the groups; the resources corresponding to the i-th sub-configuration are in N com resources in a resource portfolio.

[0181] Optionally, if the resources corresponding to the i-th sub-configuration in a group of sub-configurations (eg, L sub-configurations) include N com resource combination and are configured with multiple third parameters, then the multiple third parameters are com There is a one-to-one correspondence between each resource combination.

[0182] The third parameter is further described below. Optionally, one / each subconfiguration (in the group of subconfigurations, or in the L subconfigurations, or in the N subconfigurations) may correspond to / configure / include: (one or more) third parameters. Optionally, (one) third parameter may include / may be at least one of the following: a port subset (e.g., an antenna port subset); an RI restriction parameter; a codebook type high-level parameter (e.g., codebookType); a parameter for determining N1 and N2, or a parameter for determining N1, N2, and N g Parameters; or used to determine N g Parameters; power parameters.

[0183] Optionally, the codebook configuration parameter (eg, CodebookConfig) in the CSI reporting configuration may be configured / include N ABC The j-th restriction applies to a reported PMI associated to a CSI-RS resource in Group j. For example, the reported PMI of (a sub-configuration) is determined based on the codebook subset restriction of the corresponding (group). Optionally, (all) sub-configurations in the CSI reporting configuration share / use the N ABC Optionally, a codebook type high-level parameter (eg, codebookType) may be used to determine the CSI of the resources (or resource subsets, or resource subsets corresponding to the third parameter) corresponding to the corresponding sub-configuration.

[0184] Optionally, the codebook (configured for CSI reporting) / codebook corresponding to the UE (e.g., codebook parameter. For example, codebookType) can be configured as a type-1 single-panel codebook (e.g., parameter codebookType is set to 'typeI-SinglePanel') or as a type-1 multi-panel codebook (e.g., parameter codebookType is set to 'typeI-MultiPanel'). If the UE provides / reports / indicates the capability of supporting mixed codebook combination in a time slot (for supporting mixed codebook combination in aslot), one / each sub-configuration (corresponding codebook) can be configured as a type-1 single-panel codebook, or a type-1 multi-panel codebook (e.g., one / each sub-configuration can be configured / include a codebook type high-level parameter (codebookType), which can be set to 'typeI-SinglePanel' or 'typeI-MultiPanel'). Optionally, an antenna port subset (or an antenna port parameter) can be used to determine the CSI of the resource (or resource subset, or resource subset corresponding to the third parameter) corresponding to the corresponding sub-configuration.

[0185] Optionally, one / each sub-configuration may be configured with a port subset (e.g., an antenna port subset). For example, one / each sub-configuration may be configured with a port subset via a higher-level parameter (e.g., port-subsetIndicator). Optionally, the higher-level parameter includes / configures / indicates a bitmap (e.g., a bit sequence) including a P m (P m ≥1) bits, where P m It refers to the number of CSI-RS resource ports configured by a high-level parameter (e.g., nrofPorts). Here, CSI-RS resources refer to CSI-RS resources in the first resource set. Optionally, the bit sequence can be p 0 ,p 1 ,...,p Pm-1 , where p 0 refers to the most significant bit (MSB) and p Pm-1 Refers to the least significant bit (LSB). Bit p iCorresponding to antenna port 3000+i. Optionally, the corresponding antenna port indicated / represented by bit value 0 (in the high-layer parameter port-subsetIndicator) is disabled for the sub-configuration. Optionally, the corresponding antenna port indicated / represented by bit value 1 (in the high-layer parameter port-subsetIndicator) is enabled for the sub-configuration, and these (enabled) ports belong to the antenna port subset of the sub-configuration. For the derivation of PMI, antenna ports corresponding to all bits with value of 1 in high layer parameter (eg, port-subsetIndicator) are mapped to consecutive antenna ports starting at CSI-RS antenna port 3000 in increasing order of the bit position in high layer parameter (eg, port-subsetIndicator) Optionally, the antenna port subset (or, antenna port parameters) may be used to determine the CSI of the resources (or, resource subset, or, resource subset corresponding to the third parameter) corresponding to the corresponding subconfiguration.

[0186] Optionally, if one / each sub-configuration is configured with an antenna port subset, the sub-configuration may be configured with a rank indicator (RI) restriction (e.g., a parameter for restricting RI). Optionally, a high-level parameter (e.g., reportQuantity) in a CSI reporting configuration corresponding to / associated with one / each sub-configuration (optionally, the CSI reporting configuration is used to report CQI) is set to 'cri-RI-PMI-CQI' or 'cri-RI-LI-PMI-CQI', and / or, a corresponding / associated CSI-RS resource group (for channel measurement) is configured with two groups (e.g., N ABC =2) and N com resource pairs, the CRI reported by the sub-configuration corresponding to / associated with it corresponds to N com One of the resource pairs (or one entry), and / or the combination of the reported ranks corresponding to / associated with the sub-configuration is {v 1 ,v2}. Optionally, v 1 corresponds to / represents / refers to the value / number of the rank (reported corresponding to group 1); v 2 corresponds to / represents / refers to the value / number of the rank (reported corresponding to group 2). Optionally, v 1 ≥1 and v 2 ≥1. The rank combination can be one of {1,1}, {1,2}, {2,1}, {2,2}. Optionally, the two RIs can be reported by a joint RI index. The joint RI index corresponds to one of the rank combinations {1,1}, {1,2}, {2,1}, {2,2}. Optionally, the RI restriction parameter can be used to determine the CSI of the resources (or, the resource subset, or, the resource subset corresponding to the third parameter) corresponding to the corresponding sub-configuration.

[0187] Optionally, if one / each sub-configuration is configured with an antenna port subset, the sub-configuration may be configured with at least one of a parameter for determining N1 and N2 (and / or codebook subset restriction), a parameter for determining N1, N2 and Ng (and / or codebook subset restriction), and a parameter of Ng. For example, when the codebook type (of the sub-configuration or the CSI reporting configuration corresponding to) is set to a type-one single-panel codebook (for example, if the high-level parameter codebookType is set to 'typeI-SinglePanel'), the sub-configuration may be configured with high-level parameters n1-n2 (if the number of antenna port subsets is greater than 2). For example, when the codebook type is set to a type-one multi-panel codebook (for example, if the high-level parameter codebookType is set to 'typeI-MultiPanel'), the sub-configuration may be configured with high-level parameters ng-n1-n2 (if the number of antenna port subsets is greater than 2). For example, the sub-configuration may be configured with a high-level parameter twoTX-CodebookSubsetRestriction (if the number of antenna port subsets is equal to 2). Optionally, the parameters for determining N1 and N2, the parameters for determining N1, N2 and N g Parameters used to determine N g At least one of the parameters may be used to determine the CSI of the resources corresponding to the corresponding sub-configuration (or, a subset of resources, or, a subset of resources corresponding to a third parameter).

[0188] Optionally, one / each sub-configuration may be configured with a power parameter (e.g., a parameter for indicating a power offset). Optionally, the power parameter is used to indicate / determine a power offset (of a CSI-RS resource), wherein the power offset refers to an additional PDSCH relative to CSI-RS (EPRE) power offset (a power offset for PDSCH relative to CSI-RS additional to powerControlOffset of the CSI-RS resource) based on a higher-layer parameter (e.g., powerControlOffset) corresponding to the CSI-RS resource. Optionally, the power parameter may be used to determine the CSI of a resource (or a subset of resources, or a subset of resources corresponding to a third parameter) corresponding to the corresponding sub-configuration.

[0189] The following describes a method for determining the CSI (e.g., at least one of CRI, RI, PMI, CQI and LI) corresponding to a subconfiguration (e.g., in the group of subconfigurations, or, in L subconfigurations, or, in N subconfigurations).

[0190] Method 1

[0191] Optionally, if the resources corresponding to a sub-configuration include one or more resource combinations, or if the sub-configuration / CSI reporting configuration is configured with a reporting mode parameter (e.g., csi-ReportMode) with a value of "Mode1", the CSI corresponding to the sub-configuration includes at least one of a CRI, X (X≥1) or 1 RI, X PMIs, X or 1 CQI, and X LI, where X refers to the (maximum / minimum) number of resources contained in (one) resource combination in one or more resource combinations. Optionally, a CRI k 1 (k 1 ≥0) corresponds to the (kth 1 +1) item (related / corresponding) N com Resource combination (CRIk 1 (k1≥0)corresponds to the configured(k 1 +1)-th entry of the associated N com Resource combination). Optionally, a CRI k 1 (k 1 ≥0) corresponds to the (k 1+1) resource combinations. Optionally, at least one of X or 1 RI, X PMI, X or 1 CQI, and X LI is determined based on the CRI. Optionally, X RIs correspond to X groups one-to-one; and / or, X PMIs correspond to X groups one-to-one; and / or, X CQIs correspond to X groups one-to-one. This method can measure the corresponding CSI parameters in the case of joint scheduling of multiple TRPs, so that the base station can obtain CSI information accordingly, improve scheduling efficiency, and improve the performance of the communication system.

[0192] Method 2

[0193] Optionally, if the resources corresponding to a sub-configuration include one or more resources, or if the sub-configuration / CSI reporting configuration is configured with a reporting mode parameter (e.g., csi-ReportMode) with a value of "Mode1" and the high-level parameter (e.g., numberOfSingleTRP-CSI-Mode1) included / configured in the sub-configuration / CSI reporting configuration is set to 1, then the CSI corresponding to the sub-configuration includes at least one of a CRI, 1 RI, 1 PMI, 1 or 2 CQIs, and 1 LI. Optionally, a CRI k 2 (k 2 ≥0) corresponds to the (kth) configuration (in the first resource set) 2 +1) item (associated / corresponding to the subconfiguration) resources. Optionally, at least one of 1 RI, 1 PMI, 1 or 2 CQIs, and 1 LI is determined based on the CRI. This method can report the measurement results of one or more TRPs so that the base station can obtain CSI information accordingly, improve scheduling efficiency, and improve the performance of the communication system. Optionally, method two can be combined with method one, that is, when the resources corresponding to a subconfiguration include one or more resources and one or more resource combinations, the mapping relationship between the corresponding CRI and the resource (or, resource combination) can be determined according to method one and method two, respectively.

[0194] Method 3

[0195] Optionally, if the resources corresponding to a sub-configuration include one or more resources, or if the sub-configuration / CSI reporting configuration is configured with a reporting mode parameter (e.g., csi-ReportMode) with a value of "Mode1" and the higher-level parameter (e.g., numberOfSingleTRP-CSI-Mode1) included / configured in the sub-configuration / CSI reporting configuration is set to X (X≥1), then the CSI corresponding to the sub-configuration includes X CRIs. Optionally, X refers to the (maximum / minimum) number of resources included in (one) resource combination in one or more resource combinations. Optionally, a CRI k j+1 (kj+1 ≥ 0) corresponding to the (k j+1 +1)-th resource of the configuration in group j. Optionally, each CRI corresponds to at least one of 1 RI, 1 PMI, 1 or 2 CQIs, and 1 LI. Optionally, at least one of 1 RI, 1 PMI, 1 or 2 CQIs, and 1 LI is determined based on the corresponding CRI (CRI k j+1 ). This method can report the measurement results for each of multiple TRPs so that the base station can obtain CSI information accordingly, improve the scheduling efficiency, and improve the performance of the communication system. Optionally, Method 3 can be combined with Method 1, that is, when the resources corresponding to a sub-configuration include one or more resources and one or more resource combinations, the mapping relationship between the corresponding CRI and the resources (or, resource combinations) can be determined according to Method 1 and Method 3 respectively.

[0196] Method 4

[0197] Optionally, if the resources corresponding to a sub-configuration include one or more resources and one or more resource combinations, or if the sub-configuration / CSI reporting configuration is configured with a reporting mode parameter with a value of "Mode2" (e.g., csi-ReportMode), then the CSI corresponding to the sub-configuration includes 1 CRI. Optionally, the number of the one or more resources is M. Optionally, the number of the one or more resource combinations is N com . Optionally, the first M (M≥1) code points of the CRI (e.g., CRI k 1 , k 1 ≥ 0) correspond one-to-one to the M resources. Optionally, the last N com code points of the CRI (or, the code points after the first M code points) correspond one-to-one to the N com resource combinations. When k 1 <M (or, k 1 corresponds to the first M code points), based on the CRIk 1 , the UE reports at least one of 1 RI, 1 PMI, 1 LI, and 1 or 2 CQIs. When k 1 ≥M (or, k 1 corresponds to the last N code points, or, k 1 corresponds to the N com code points after the first M code points, or, in other cases), based on the CRIk 1, the UE reports at least one of X RIs, X PMIs, X LIs, one or two CQIs. Optionally, X refers to the (maximum / minimum) number of resources contained in (one) resource combination in one or more resource combinations. This method can report the measurement results of one or more TRPs separately and / or jointly, so that the base station can obtain CSI information accordingly, improve scheduling efficiency, and improve the performance of the communication system.

[0198] The following describes a method for determining the CRI field in the CSI corresponding to the sub-configuration.

[0199] Optionally, the bit width of the channel state information reference signal resource indicator CRI field in the CSI corresponding to the i-th subconfiguration in one or more subconfigurations (for example, N subconfigurations) is determined based on the number of resources corresponding to the i-th subconfiguration and / or the number of resource combinations corresponding to the i-th subconfiguration.

[0200] Optionally, the bit width of the CRI field in the CSI corresponding to one / each subconfiguration (in the group of subconfigurations, or in the L subconfigurations, or in the N subconfigurations) is based on the number of corresponding one or more resources (e.g., N com ) and / or the number of one or more resource combinations (e.g., N com ). For example, the bit width of the sub-configuration is equal to or, or, For example, for method 1, the bit width of the CRI corresponding to the sub-configuration is equal to For example, for method 2, the bit width of the CRI corresponding to the sub-configuration is equal to Where M represents the number of one or more resources corresponding to the sub-configuration. For example, for method 3, the bit width of the CRI of a group corresponding to the sub-configuration is equal to Where M′ represents the number of one or more resources included in the group. For example, for method 4, the bit width of the CRI corresponding to the sub-configuration is equal to

[0201] The following describes the CSI processing unit (CSI processing unit, CPU) (for example, the number of CPUs occupied, or the number of CPUs used) corresponding to the CSI reporting configuration. CPU Processing of a CSI report occupies a number of CPUs for a number of symbols as follows.

[0202] In the case where the CSI reporting configuration corresponds to periodic CSI reporting (or the CSI reporting configuration is for periodic CSI reporting), the number of CPUs occupied by the CSI reporting (for example, CPU ) is based on / equal to the sum of the number of occupied CPUs corresponding to each sub-configuration in the L sub-configurations included in the corresponding CSI reporting configuration.

[0203] When the CSI reporting configuration corresponds to non-periodic CSI reporting or semi-continuous CSI reporting (or, the CSI reporting configuration is for non-periodic CSI reporting or semi-continuous CSI reporting), the number of CPUs occupied by the CSI reporting configuration is the sum of the number of CPUs occupied by each sub-configuration in the N sub-configurations.

[0204] The following further describes a method for determining the number of occupied CPUs corresponding to one / each sub-configuration.

[0205] Optionally, the resources corresponding to the i-th sub-configuration in a group of sub-configurations (eg, L sub-configurations) include N com resource combinations, the number of CPUs occupied by the i-th sub-configuration is based on the number of resources in the resource combination corresponding to the i-th sub-configuration and / or N com and / or, if the resources corresponding to the i-th sub-configuration in a group of sub-configurations (eg, L sub-configurations) include the N ABC If the number of CPUs occupied by the ith sub-configuration is the number of resources in at least one of the resource groups, the number of CPUs occupied by the ith sub-configuration is determined based on the number of resources in the resource group corresponding to the ith sub-configuration.

[0206] Optionally, the number of CPUs occupied by a sub-configuration is determined based on the number of resources corresponding to the sub-configuration and / or the number of resource combinations corresponding to the sub-configuration.

[0207] Optionally, when a sub-configuration corresponds to M resources, the number of CPUs occupied by the sub-configuration is based on / equal to M.

[0208] Optionally, when a subconfiguration corresponds to N com When N resources are combined, the number of CPUs occupied by this sub-configuration is based on com of, or, equal to / based on A and N com Here, A is based on the number of resources in the resource portfolio, or N ABC Optionally, A is equal to / based on the product of A' and the number of resources in the resource combination, or, A = A'*N ABC, or, A=A'. Optionally, A' is predefined, or determined based on UE capability indication, or configured by RRC signaling. A' is, for example, one of 1, 1.5, 2, 2.5, and 3.

[0209] Optionally, when a subconfiguration corresponds to M resources and N com When a resource combination is used, the number of CPUs occupied by the sub-configuration is based on M and N com and N ABC For example, the number of CPUs occupied by the sub-configuration is equal to / based on M+A*N com . 'Here, the definition of A is as above.

[0210] Optionally, the high-level parameter (e.g., reportQuantity) of the CSI reporting configuration of the CSI reporting may be set to 'cri-RI-PMI-CQI' or 'cri-RI-i1' or 'cri-RI-i1-CQI' or 'cri-RI-LI-PMI-CQI'. Optionally, (when the fifth condition is met) the number of occupied CPUs (0 CPU ) can be determined based on at least one of the following: the number of ports in the antenna port subset indicated by the subconfiguration; the number of subconfigurations (for example, N or L); UE capabilities; the time domain behavior type of CSI reporting. Here, the time domain behavior type of CSI reporting can be periodic, semi-continuous, or non-periodic. Here, UE capabilities are used to indicate / determine the CSI calculation time for CSI reporting. See below for a description of the CSI calculation time. Optionally, the UE capability may be a first UE capability or a second UE capability. When the UE indicates / reports a first UE capability, the value of the CSI calculation time corresponding to the CSI report is X1. When the UE indicates / reports a second UE capability, the value of the CSI calculation time corresponding to the CSI report is X2. Optionally, Or, X2 = X1*(K s *P) / A. Here, K s The description of and P is as above. Optionally, A is predefined. Optionally, the value of A can be one of 1, 2, 4, 8, 16, 32, 64, 128. For example, when X1=Z, For example, when X1=Z′, For example, when X1 = Z 1 hour, For example, when X1 = Z 1 'hour, For example, when X1 = Z 2 hour, For example, when X1 = Z′ 2 hour,

[0211] Optionally, when the CSI reporting is periodic CSI reporting, CPU It may be determined based on L or based on the (total) number of ports in the port subset indicated by each sub-configuration in the L sub-configurations. Optionally, if the CSI reporting is periodic CSI reporting and / or the UE reports / indicates the first UE capability, then O CPU It may be determined based on the (total) number of ports in the port subset indicated by each of the L sub-configurations. CPU based on and / or P and / or K s and / or L. For example, O CPU Based on or equal to one of the following: or, or, or, or, or, or, or, For example, CPU =Q, where Q is based on or equal to one of the following: or, or, or, or, or, or, or, Optionally, O CPU =max(Q,R), or, CPU =min(Q,R). Optionally, R may be a positive integer. Optionally, R may be determined based on UE capabilities. Optionally, R is predefined. Optionally, R may be one of 1, 2, 3, 4, 5, 6, 7, 8. Optionally, R may be based on L. For example, R may be a positive integer multiple of L. For example, R=m*L, or, or, Optionally, m can be one of 1, 2, 3, 4, 5, 6, 7, and 8. Optionally, m can be predefined. Optionally, m is determined based on UE capabilities. Optionally, m can be indicated by the base station. This method can further limit the upper or lower bound of the number of CPUs occupied by CSI reporting to adapt to UEs with corresponding capabilities, thereby improving the flexibility of the communication system. Here, P i represents the number of ports in the port subset indicated by sub-configuration i, or O iRepresents the number of CSI-RS ports determined based on the parameter portSubsetIndicator indicated by subconfiguration i. Here, the definition of P is as described above. Here, subconfiguration i may be one of L subconfigurations. Optionally, subconfiguration i may be the i-th subconfiguration among the L subconfigurations. Optionally, the number of ports in the port subset indicated by the subconfiguration may be determined based on the parameter port-subsetIndicator in the subconfiguration. Optionally, the number of ports in the port subset indicated by the subconfiguration may be: the number of bits whose value is 1 indicated by the parameter port-subsetIndicator in the subconfiguration. Optionally, if the CSI report is a periodic CSI report and / or the UE reports / indicates a second UE capability, then O CPU It can be determined based on L. For example, O CPU = L. This method clarifies that when the CSI reporting configuration includes sub-configuration, O CPU The determination method enables the UE and the base station to have a common understanding of the number of CPUs occupied by the corresponding CSI reporting, thereby improving the reliability of the communication system.

[0212] Optionally, when the CSI reporting is semi-persistent CSI reporting or aperiodic CSI reporting, CPU It may be determined based on N or based on the (total) number of ports in the port subset indicated by each sub-configuration in the N sub-configurations. Optionally, if the CSI reporting is semi-persistent CSI reporting or aperiodic CSI reporting, and / or the UE reports / indicates the first UE capability, then CPU It may be determined based on the (total) number of ports in the port subset indicated by each sub-configuration in the N sub-configurations. CPU based on and / or P and / or K s and / or N. For example, O CPU Based on or equal to one of the following: or, or, or, or, or, or, or, For example, CPU =Q, where Q is based on or equal to one of the following: or, or, or, or, or, or, or, Optionally, O CPU=max(Q,R), or, CPU =min(Q,R). Optionally, R may be a positive integer. Optionally, R may be determined based on UE capabilities. Optionally, R is predefined. Optionally, R may be one of 1, 2, 3, 4, 5, 6, 7, 8. Optionally, R may be based on N. For example, R may be a positive integer multiple of N. For example, R=m*N, or, or, Optionally, m can be one of 1, 2, 3, 4, 5, 6, 7, and 8. Optionally, m is determined based on UE capabilities. Optionally, m can be indicated by the base station. This method can further limit the upper or lower bound of the number of CPUs occupied by CSI reporting to adapt to UEs with corresponding capabilities, thereby improving the flexibility of the communication system. Here, P i represents the number of ports in the port subset indicated by sub-configuration i, or, P i Indicates the number of CSI-RS ports determined based on the parameter portSubsetIndicator indicated by subconfiguration i. Here, subconfiguration i can be one of N subconfigurations. Optionally, subconfiguration i can be the i-th subconfiguration among the N subconfigurations. Optionally, the number of ports in the port subset indicated by the subconfiguration can be determined based on the parameter port-subsetIndicator in the subconfiguration. Optionally, the number of ports in the port subset indicated by the subconfiguration can be: the number of bits whose value is 1 indicated by the parameter port-subsetIndicator in the subconfiguration. Optionally, if the CSI report is a semi-continuous CSI report or an aperiodic CSI report and / or the UE reports / indicates a second UE capability, then O CPU It can be determined based on N. For example, CPU = N. This method clarifies that when the CSI reporting configuration includes sub-configuration, O CPU The determination method enables the UE and the base station to have a common understanding of the number of CPUs occupied by the corresponding CSI reporting, thereby improving the reliability of the communication system.

[0213] Optionally, the fifth condition includes at least one of the following:

[0214] The higher layer parameters (e.g., reportQuantity) of the CSI reporting configuration of the CSI reporting are set to 'cri-RI-PMI-CQI', 'cri-RI-i1', 'cri-RI-i1-CQI', or 'cri-RI-LI-PMI-CQI'; The CSI reporting configuration includes / is configured with L sub-configurations;

[0215] The CSI reporting configuration is configured with a resource set for channel measurement, where the resource set includes K sresources and the number of antenna ports in each resource is P. Here, K s For the description of P, see above;

[0216] The CSI reporting configuration includes / is configured with one / each sub-configuration indicating an antenna port subset, or the CSI reporting configuration includes / is configured with one / each sub-configuration including / is configured with a parameter portSubsetIndicator. Optionally, the length of the bitmap associated with / corresponding to the parameter portSubsetIndicator is K s *P, or the length of the bitmap associated / corresponding to the antenna port subset indication is K s *P;

[0217] ·P subset =2*N1*N2, or, P subset =2*N1*N2*Ng. subset See above for the definition of .

[0218] When the measurement resource set associated with / corresponding to the CSI reporting configuration is non-periodic, and the CSI reporting corresponding to the CSI reporting configuration is also non-periodic, the DCI format that triggers the CSI reporting, the triggered measurement resources, and the physical uplink shared channel (PUSCH) that carries the CSI reporting need to meet the CSI computation delay requirement. The following describes a method for determining the CSI computation time associated with the CSI reporting configuration. In this application, the term "CSI computation time" can be used interchangeably with the term "CSI computation delay requirement" or "Z timeline". The definition of CSI calculation time is briefly explained below.

[0219] A UE may receive a downlink control information (DCI). Optionally, the DCI triggers a non-periodic report. Optionally, the DCI (or a CSI request field included in the DCI) may trigger one or more CSI reports (on a physical uplink shared channel (PUSCH)). For example, the one or more CSI reports are carried by the PUSCH. Optionally, the one or more CSI reports include a first CSI report.

[0220] Optionally, the one or more CSI reports include / correspond to a first CSI report. For example, the first CSI report represents the nth (triggered) report among the one or more reports.

[0221] Optionally, the UE determines / feeds back / reports a first CSI report (or, the UE provides a (valid) CSI report for the first CSI report). Optionally, when at least one of the following conditions is met, the UE determines / feeds back / reports a first CSI report (or, the UE provides a (valid) CSI report for the first CSI report):

[0222] The time unit carrying one or more CSI reports (e.g., the start of the time unit, or the end of the time unit) is not earlier than the first time unit. For example, the unit of the time unit may be a time slot or a symbol. For example, the time unit carrying one or more CSI reports may be the first uplink symbol carrying one or more CSI reports. Optionally, the uplink symbol includes (or needs to consider) the effect of the timing advance. The first time unit (e.g., Z ref ) is described below;

[0223] The time unit carrying the first CSI report (the start of which) is not earlier than the second time unit. For example, the unit of the time unit may be a time slot or a symbol. For example, the time unit carrying the first CSI report may be the first uplink symbol carrying the first CSI report. Optionally, the uplink symbol includes (or needs to take into account) the effect of the timing advance. The second time unit (e.g., Z r r ef ) is described below.

[0224] Optionally, the first time unit (eg, Z ref ) is determined based on the time unit where the physical downlink control channel (PDCCH) corresponding to the DCI (e.g., the DCI that triggers one or more CSI reports) is located and the CSI calculation delay parameter corresponding to one (or, each) CSI report among the one or more CSI reports. Optionally, the first time unit may be an uplink symbol (e.g., the next uplink symbol) after the last symbol (the first specific time) where the PDCCH corresponding to the DCI (e.g., the DCI that triggers one or more CSI reports) is located. Optionally, the first specific time is determined based on the CSI calculation delay parameter corresponding to one (or, each) CSI report among the one or more CSI reports. For example, Z ref is defined as the next uplink symbol, the start of which (including its cyclic prefix (CP)) is at the end of the physical downlink control channel (PDCCH) that triggers (multiple) CSI reporting. proc,CSI=(Z)(2048+144)·κ2 -μ ·T C +T switch then(thenext uplink symbol with its CP startingT proc,CSI =(Z)(2048+144)·κ2 -μ ·T C +T switc Here, for the description of parameter μ, refer to the description of Table 1 below. C represents the basic time unit for New Radio (NR). κ represents T S and T C The ratio betweenT S andT C ). S Indicates the basic time unit for Long Term Evolution (LTE). switch is a parameter used to indicate the uplink switching time interval. switc is equal to the switching gap duration or is 0. Z represents / is equal to the maximum value of the CSI calculation delay parameter corresponding to each CSI report in the updated CSI report (in one or more CSI reports). Optionally, the (one or more) CSI reports updated in one or more CSI reports are determined according to CSI processing criteria (for example, rules related to the CSI processing unit (CPU)). For example, the terminal device can determine which CSI reports need to be updated and which CSI reports are not required to be updated based on the total number of CPUs (CSI processing units) and the number of occupied CPUs. Optionally, the updated reports are represented as report #0, report 1, ..., report M-1, where the number of updated reports is M. Optionally, each report can correspond to a CSI calculation delay parameter. For example, the CSI calculation delay parameter corresponding to report m is Z(m), m=0,1,...,M-1.

[0225] Optionally, the second time unit (eg, Z r ' ef) is determined based on the time unit of the measurement resource corresponding to the first CSI report and the CSI calculation delay parameter corresponding to the first CSI report. Optionally, the measurement resource includes a resource for channel measurement and / or a resource for interference measurement. Optionally, the measurement resource may be a non-periodic resource. Optionally, the measurement resource corresponding to the first CSI report may be the nearest resource among the measurement resources. For example, in the case where there are multiple measurement resources corresponding to the first CSI report, the measurement resource corresponding to the first CSI report refers to the nearest resource (in the time domain) among the measurement resources used for the first CSI report. For example, the time unit of the measurement resource corresponding to the first CSI report refers to the last symbol of the nearest resource (in the time domain) among the measurement resources used for the first CSI report. Optionally, the second time unit may be an uplink symbol after (the second specific time) of the last symbol of the nearest resource (in the time domain) among the measurement resources used for the first CSI report. Optionally, the second specific time is determined based on the CSI calculation delay parameter corresponding to one (or each) CSI report among one or more CSI reports. For example, taking the first CSI report as an example, Z r ' ef is defined as the next uplink symbol when the non-periodic CSI-RS for channel measurement is used for the first CSI reporting, and the start of the next uplink symbol (including its CP) is at the end of the last symbol of the non-periodic CSI-RS resource for channel measurement, the non-periodic CSI-IM for interference measurement, and the non-periodic NZP CSI-RS resource for interference measurement. proc,CSI =(Z′)(2048+144)·κ2 -μ ·T C after (the next uplink symbol with its CPstartingT′ proc,CSI =(Z′)(2048+144)·κ2 -μ ·T Cafter the end of the last symbol intime of the latest of:aperiodic CSI-RS resource for channel measurements,aperiodic CSI-IM used for interference measurements,and aperiodic NZP CSI-RSfor interference measurement,when aperiodic CSI-RS is used for channelmeasurement for the first CSI report). Here, for the description of parameter μ, refer to the description of Table 1 below. C represents the basic time unit for NR. κ represents T S and T C The ratio between S andT C ). S Represents the basic time unit for LTE. Z′ represents the maximum value of the CSI calculation delay parameter corresponding to each CSI report in the updated CSI report (in one or more CSI reports). Optionally, the (one or more) CSI reports updated in one or more CSI reports are determined according to the CSI processing standard (for example, rules related to the CPU). For example, the terminal device can determine which CSI reports need to be updated and which CSI reports are not required to be updated based on the total number of CPUs (CSI processing units) and the number of occupied CPUs. Optionally, the updated reports are represented as report #0, report 1, ..., report M-1, where the number of updated reports is M. Optionally, each report can correspond to a CSI calculation delay parameter. For example, the CSI calculation delay parameter corresponding to report m is Z′(n), m=0,1,...,M-1.

[0226] Optionally, the UE may receive a DCI. Optionally, the DCI triggers aperiodic reporting. Optionally, the DCI (or a CSI request field included in the DCI) may trigger one or more CSI reports (on the PUSCH).

[0227] Optionally, when (the start of) the time unit carrying one or more CSI reports is earlier than the first time unit, the UE ignores (ignores) the DCI (or, the scheduling DCI). For example, the DCI is the DCI that triggers the one or more CSI reports. Optionally, the time unit carrying one or more CSI reports includes (or, needs to consider) the effect of the timing advance. Here, the first time unit refers to the above description.

[0228] Optionally, when (the start of) the time unit carrying the first CSI reporting is earlier than the second time unit, the UE performs at least one of the following operations:

[0229] If there is no hybrid automatic repeat request-acknowledgement (HARQ-ACK) or transport block multiplexed on the PUSCH and the number of reported one or more CSI reports is 1, the UE ignores the DCI (or scheduling DCI);

[0230] Otherwise, the UE is not required to update the first CSI reporting.

[0231] Optionally, the time unit carrying the first CSI report includes (or needs to consider) the effect of the timing advance. Here, the second time unit refers to the above description.

[0232] For example, Z 1 , Z 2 , Z 1 ′,Z 2 ' can be represented by the following Table 1, where Z 1 and Z 2 is a parameter associated with Z(m), and Z 1 ′ and y 2 ′ is a parameter associated with Z′(m). Here, μ in Table 1 corresponds to μ PDCCH , μ CSI-RS and μ UL The minimum value min(μ PDCCH ,μ CSI-RS ,μ UL ). Here, μ PdCCH The subcarrier spacing corresponding to the physical downlink control channel (PDCCH), wherein the above-mentioned DCI (for example, the DCI triggering the one or more CSI reports) is carried / sent via the PDCCH. ULThe subcarrier spacing corresponding to the PUSCH, where the PUSCH is used to carry / send the one or more CSI reports. CSI-RS The minimum / maximum subcarrier spacing corresponding to the aperiodic CSI-RS triggered by the DCI. Optionally, the aperiodic CSI-RS triggered by the DCI refers to (one or more) resources (e.g., CSI-RS resources) indicated by (all) sub-configurations triggered by the DCI. In addition, X μ It is determined based on the capability parameters reported by the UE (e.g., beamReportTiming). l It is determined based on the capability parameters (eg, beamSwitchTiming) reported by the UE.

[0233] Table 1

[0234]

[0235]

[0236] Taking a CSI reporting configuration corresponding to a report m as an example, the CSI calculation time of CSI report m may be (e.g., Z(m) and Z′(m)). Optionally, the CSI calculation time may be Z and / or Z′. Optionally, the value of the CSI calculation time may be based on or equal to Z. 1 , Z 2 , Z 1 ′,Z 2 A positive integer multiple of one of ′.

[0237] In any slot, the UE is not expected to have more active CSI-RSports or active CSI-RS resources in active BWPs than reported as capability.

[0238] A counting method for a CSI-RS resource related to the CSI reporting configuration (eg, a counting method for activated CSI-RS resources) is described below.

[0239] For CSI reporting configuration, if a CSI-RS resource is referenced by Y (Y≥1) sub-configurations, then (for activated CSI-RS resource counts), the CSI-RS resource is counted (are counted) Y1 times (Y1≥1). The UE determines Y1 as the sum of the number of references (or, the number of counts, or, the number of times) for the CSI-RS resource by each sub-configuration in the Y sub-configurations, or determines that Y1 is equal to Y. Optionally, the Y sub-configurations come from L sub-configurations, or the Y sub-configurations come from N sub-configurations. It should be noted that a CSI-RS resource is referenced by a sub-configuration means that: the resources corresponding to the sub-configuration include the CSI-RS resource, or the sub-configuration uses / applies the CSI-RS resource (for determination of the CSI corresponding to the sub-configuration).

[0240] Optionally, if the CSI reporting configuration (or any one / each of the L sub-configurations or the N sub-configurations) is not configured with a resource sharing parameter, the UE determines that Y1 is equal to Y. Optionally, if one or more resource combinations are not configured in the CSI reporting configuration (any one / each of the L sub-configurations or the N sub-configurations), the UE determines that Y1 is equal to Y. Optionally, if the CSI reporting configuration (any one / each of the L sub-configurations or the N sub-configurations) is not configured with (or has no corresponding to) one or more resource combinations, and / or, the CSI reporting configuration (or any one / each of the L sub-configurations or the N sub-configurations) is not configured with a resource sharing parameter, the UE determines that Y1 is equal to Y.

[0241] The following describes a method for determining the number of references of a sub-configuration for a CSI-RS resource.

[0242] Optionally, if the resources corresponding to a sub-configuration included in the Y sub-configurations include M resources and / or N com At least one of the M resource combinations, and the CSI-RS resource is composed of the M resources and / or N com If the resources in a resource combination are referenced Z times (Z ≥ 0), then (for the activated CSI-RS resource count), the CSI-RS resources corresponding to the sub-configuration are counted Z times (the CSI-RS resources are counted Z times for the sub-configuration). For example, if the resources corresponding to a sub-configuration included in Y sub-configurations include M resources and / or N com At least one of the M resource combinations, and the CSI-RS resource is composed of the M resources and / or N comIf a resource in a resource combination is referenced Z times (Z ≥ 0), then for the sub-configuration, the number of counts of the CSI-RS resource is Z times. Optionally, for a CSI reporting configuration, the number of counts corresponding to the CSI-RS resource is the sum of the number of counts for the CSI-RS resource in each of the Y sub-configurations.

[0243] Optionally, if the CSI reporting configuration is configured with resource sharing parameters, and the resources corresponding to a sub-configuration included in the Y sub-configurations include M resources and / or N com At least one of the M resources and / or N com If a resource in a resource combination is referenced Z times (Z ≥ 0), then (for the activated CSI-RS resource count,) the number of counts of the CSI-RS resource corresponding to the sub-configuration is Z times. Optionally, for a CSI reporting configuration, the number of counts corresponding to the CSI-RS resource is the sum of the number of counts of each sub-configuration in the Y sub-configurations for the CSI-RS resource.

[0244] Optionally, if the CSI reporting configuration is not configured with resource sharing parameters, and the resources corresponding to a sub-configuration included in the Y sub-configurations include M resources and / or N com If at least one of the resource combinations is included, then (for the activated CSI-RS resource count,) the number of times the CSI-RS resource corresponds to the sub-configuration is counted is 1. Optionally, if a sub-configuration included in the Y sub-configurations is configured with a high-level parameter for configuring a resource combination (or does not include / is configured with a resource combination), then (for the activated CSI-RS resource count,) the number of times the CSI-RS resource corresponds to the sub-configuration is counted is 1.

[0245] Optionally, when the CSI-RS resource is a periodic resource and / or a semi-persistent resource, the Y sub-configurations refer to the sub-configurations in the L sub-configurations. Optionally, when the CSI-RS resource is a non-periodic resource, the Y sub-configurations refer to the sub-configurations in the N sub-configurations.

[0246] Optionally, when the CSI-RS resource is a periodic resource, the Y sub-configurations refer to sub-configurations in the L sub-configurations. Optionally, when the CSI-RS resource is a non-periodic resource, or a semi-persistent resource, the Y sub-configurations refer to sub-configurations in the N sub-configurations.

[0247] Optionally, the Y sub-configurations are sub-configurations in a sub-configuration triggered for aperiodic CSI-RS resource.

[0248] Optionally, the Y sub-configurations are sub-configurations in a sub-configuration configured in a CSI report config for semi-persistent CSI-RS resource or periodic CSI-RS resource.

[0249] Optionally, (when the sixth condition is met,) the counting method / determination method for the number of (activated) CSI-RS resources associated with the CSI reporting configuration may be at least one of the following:

[0250] ·Method 1: If a CSI-RS resource is referenced / indicated by M subconfigurations, the CSI-RS resource is counted M times. Here, M≥0 or M≥1. Optionally, the M subconfigurations may be N subconfigurations or L subconfigurations. Optionally, the M subconfigurations may be in N subconfigurations or L subconfigurations. Optionally, the M subconfigurations may be from N subconfigurations or L subconfigurations. Optionally, the N subconfigurations are N subconfigurations for CSI reporting of non-periodic CSI-RS resources. Optionally, the L subconfigurations are L subconfigurations for CSI reporting of periodic / semi-persistent CSI-RS resources. Optionally, a CSI-RS resource being referenced / indicated by a subconfiguration means that at least one antenna port of the CSI-RS resource is in the antenna port subset indicated by the subconfiguration. Optionally, a CSI-RS resource being referenced / indicated by a sub-configuration means that at least one antenna port of the CSI-RS resource corresponds to a bit with a value of 1 in the parameter portSubsetIndicator indicated by the sub-configuration. Optionally, a CSI-RS resource being referenced / indicated by a sub-configuration means that at least one antenna port of the CSI-RS resource is indicated in the antenna port subset indicated by the sub-configuration. Optionally, a CSI-RS resource being indicated by a sub-configuration means that at least one antenna port of the CSI-RS resource is indicated by a bit with a value of 1 in the parameter portSubsetIndicator indicated by the sub-configuration. This method clarifies the counting method for the number of (activated) CSI-RS resources, so that the UE and the base station have a common understanding of the number of (activated) CSI-RS resources, thereby improving the reliability of the communication system.

[0251] ·Method 2: If a CSI-RS resource is referenced / indicated by M sub-configurations, the CSI-RS resource is counted M times. Here, M≥0 or M≥1. Optionally, the M sub-configurations may be N sub-configurations or L sub-configurations. Optionally, the M sub-configurations may be in N sub-configurations or L sub-configurations. Optionally, the M sub-configurations may come from N sub-configurations or L sub-configurations. Optionally, the N sub-configurations are N sub-configurations for CSI reporting of non-periodic CSI-RS resources. Optionally, the L sub-configurations are L sub-configurations for CSI reporting of periodic / semi-persistent CSI-RS resources. Optionally, a CSI-RS resource being referenced / indicated by a sub-configuration means that the CSI-RS resource is in a resource set for channel measurement associated with the CSI reporting configuration corresponding to the sub-configuration. Optionally, a CSI-RS resource being referenced / indicated by a sub-configuration means that the sub-configuration indicates the resource through a CSI resource ID list. This method clarifies the counting method for the number of (activated) CSI-RS resources, so that the UE and the base station have a common understanding of the number of (activated) CSI-RS resources, thereby improving the reliability of the communication system.

[0252] Method 3: If K s CSI-RS resources are referenced / indicated by M sub-configurations, then the K s CSI-RS resources are counted M times, or the K s Each resource in the CSI-RS resources is counted M times. Here, M ≥ 0 or M ≥ 1. Optionally, the M sub-configurations can be N sub-configurations or L sub-configurations. Optionally, the M sub-configurations can be in N sub-configurations or L sub-configurations. Optionally, the M sub-configurations can be from N sub-configurations or L sub-configurations. Optionally, the N sub-configurations are N sub-configurations for CSI reporting of non-periodic CSI-RS resources. Optionally, the L sub-configurations are L sub-configurations for CSI reporting of periodic / semi-persistent CSI-RS resources. Optionally, K s CSI-RS resources are referenced / indicated by a sub-configuration: s CSI-RS resources are in the resource set for channel measurement associated with the CSI reporting configuration corresponding to the sub-configuration. s CSI-RS resources are referenced / indicated by a sub-configuration: K s At least one antenna port in a CSI-RS resource is in the antenna port subset indicated by the sub-configuration. s CSI-RS resources are referenced / indicated by a sub-configuration: K sAt least one antenna port of each resource in the CSI-RS resources is in the antenna port subset indicated by the sub-configuration. This method clarifies the counting method of the number of (activated) CSI-RS resources, so that the UE and the base station have a common understanding of the number of (activated) CSI-RS resources, and improves the reliability of the communication system.

[0253] Optionally, (when the sixth condition is met,) the counting method / determination method for the number of (activated) antenna ports of the CSI-RS resources associated with the CSI reporting configuration may be at least one of the following:

[0254] Method 1: If a CSI-RS resource is referenced / indicated by M sub-configurations, the CSI-RS ports (or antenna ports) in the CSI-RS resource are counted as Here, M≥0 or M≥1. The description of P is as above. Here, P s represents the number of ports in the port subset indicated by the sub-configuration s that belong to the CSI-RS resource, or, P s represents the number of CSI-RS ports belonging to the CSI-RS resource determined based on the parameter portSubsetIndicator indicated by the subconfiguration s, or, P s Indicates the number of CSI-RS ports in the CSI-RS resource corresponding to the bit with a value of 1 in the parameter portSubsetIndicator indicated by the subconfiguration s, or, P s Indicates the number of CSI-RS ports corresponding to the bits with a value of 1 in the parameter portSubsetIndicator indicated by the sub-configuration s and belonging to the CSI-RS resource. The length of the bitmap corresponding to the port subset indication is P*K sIn the case of , the antenna ports indicated by the port subset may include antenna ports of other CSI-RS resources. This method clarifies which ports in the port subset will be counted, so that the UE and the base station have a common understanding of the number of activated CSI-RS ports, thereby improving the reliability of the communication system. Here, subconfiguration s may be one of the M subconfigurations. Optionally, subconfiguration s may be the sth subconfiguration in the M subconfigurations. Optionally, the M subconfigurations may be N subconfigurations or L subconfigurations. Optionally, the M subconfigurations may be in N subconfigurations or L subconfigurations. Optionally, the M subconfigurations may come from N subconfigurations or L subconfigurations. Optionally, the N subconfigurations are N subconfigurations for CSI reporting of non-periodic CSI-RS resources. Optionally, the L subconfigurations are L subconfigurations for CSI reporting of periodic / semi-persistent CSI-RS resources. Optionally, a CSI-RS resource is referenced by a sub-configuration, which means that at least one antenna port of the CSI-RS resource is in the antenna port subset indicated by the sub-configuration. Optionally, a CSI-RS resource is referenced / indicated by a sub-configuration, which means that at least one antenna port of the CSI-RS resource corresponds to a bit with a value of 1 in the parameter portSubsetIndicator indicated by the sub-configuration. Optionally, a CSI-RS resource is referenced / indicated by a sub-configuration, which means that at least one antenna port of the CSI-RS resource is indicated in the antenna port subset indicated by the sub-configuration. Optionally, a CSI-RS resource is indicated by a sub-configuration, which means that at least one antenna port of the CSI-RS resource is indicated by a bit with a value of 1 in the parameter portSubsetIndicator indicated by the sub-configuration. This method clarifies the counting method of the number of (activated) CSI-RS ports in a CSI-RS resource, so that the UE and the base station have a common understanding of the number of (activated) CSI-RS ports, thereby improving the reliability of the communication system.

[0255] Method 2: If a CSI-RS resource is referenced / indicated by M sub-configurations, the CSI-RS ports (or antenna ports) in the CSI-RS resource are counted as Here, M≥0 or M≥1. The description of P is as above. Here, P s represents the number of ports in the port subset indicated by the sub-configuration s that belong to the CSI-RS resource, or, P s Indicates the number of CSI-RS ports belonging to the CSI-RS resource determined based on the parameter portSubsetIndicator indicated by the sub-configuration s, or, P sIndicates the number of CSI-RS ports in the CSI-RS resource corresponding to the bit with a value of 1 in the parameter portSubsetIndicator indicated by the subconfiguration s, or, P s Indicates the number of CSI-RS ports corresponding to the bits with a value of 1 in the parameter portSubsetIndicator indicated by the sub-configuration s and belonging to the CSI-RS resource. The length of the bitmap corresponding to the port subset indication is P*K s In the case of , the antenna ports indicated by the port subset may include antenna ports of other CSI-RS resources. This method clarifies which ports in the port subset will be counted, so that the UE and the base station have a common understanding of the number of activated CSI-RS ports, thereby improving the reliability of the communication system. Here, subconfiguration s may be one of the M subconfigurations. Optionally, subconfiguration s may be the sth subconfiguration in the M subconfigurations. Optionally, the M subconfigurations may be N subconfigurations or L subconfigurations. Optionally, the M subconfigurations may be in N subconfigurations or L subconfigurations. Optionally, the M subconfigurations may come from N subconfigurations or L subconfigurations. Optionally, the N subconfigurations are N subconfigurations for CSI reporting of non-periodic CSI-RS resources. Optionally, the L subconfigurations are L subconfigurations for CSI reporting of periodic / semi-persistent CSI-RS resources. Optionally, a CSI-RS resource is referenced / indicated by a sub-configuration, which means that the CSI-RS resource is in a resource set for channel measurement associated with the CSI reporting configuration corresponding to the sub-configuration. Optionally, a CSI-RS resource is referenced / indicated by a sub-configuration, which means that the sub-configuration indicates the resource through a CSI resource ID list. This method clarifies the counting method for the number of (activated) CSI-RS ports in a CSI-RS resource, so that the UE and the base station have a common understanding of the number of (activated) CSI-RS ports, thereby improving the reliability of the communication system.

[0256] Method 3: If K s CSI-RS resources are referenced / indicated by M sub-configurations, then the K s The CSI-RS ports (or, antenna ports) in the CSI-RS resources are counted as Here, M≥0 or M≥1. The description of P is as above. Here, P s represents the number of ports in the port subset indicated by subconfiguration s, or, P s Indicates the number of CSI-RS ports determined based on the parameter portSubsetIndicator indicated by the sub-configuration s or, P sIndicates the number of CSI-RS ports corresponding to the bits with a value of 1 in the parameter portSubsetIndicator indicated by the subconfiguration s, or, P s Indicates the number of CSI-RS ports corresponding to the bits with a value of 1 in the parameter portSubsetIndicator of the subconfiguration s indicator. This method clarifies which ports in the port subset will be counted, so that the UE and the base station have a common understanding of the number of activated CSI-RS ports, improving the reliability of the communication system.

[0257] Here, subconfiguration s may be one of M subconfigurations. Optionally, subconfiguration s may be the sth subconfiguration in the M subconfigurations. Optionally, the M subconfigurations may be N subconfigurations or L subconfigurations. Optionally, the M subconfigurations may be in N subconfigurations or L subconfigurations. Optionally, the M subconfigurations may be from N subconfigurations or L subconfigurations. Optionally, the N subconfigurations are N subconfigurations for CSI reporting of non-periodic CSI-RS resources. Optionally, the L subconfigurations are L subconfigurations for CSI reporting of periodic / semi-persistent CSI-RS resources. Optionally, K s CSI-RS resources are referenced / indicated by a sub-configuration: s CSI-RS resources are in the resource set for channel measurement associated with the CSI reporting configuration corresponding to the sub-configuration. s CSI-RS resources are referenced / indicated by a sub-configuration: K s At least one antenna port in a CSI-RS resource is in the antenna port subset indicated by the sub-configuration. s CSI-RS resources are referenced / indicated by a sub-configuration: K s At least one antenna port in each of the CSI-RS resources is in the antenna port subset indicated by the sub-configuration. This method clarifies the counting method of the number of (activated) CSI-RS ports in the CSI-RS resource, so that the UE and the base station have a common understanding of the number of (activated) CSI-RS ports, improving the reliability of the communication system.

[0258] Optionally, the sixth condition includes at least one of the following:

[0259] The CSI reporting configuration is configured with a resource set for channel measurement, where the resource set includes K s resources and the number of antenna ports in each resource is P. Here, K s For the description of P, see above;

[0260] The CSI reporting configuration includes / is configured with L sub-configurations;

[0261] The CSI reporting configuration includes / is configured with one / each sub-configuration indicating an antenna port subset, or the CSI reporting configuration includes / is configured with one / each sub-configuration including / is configured with a parameter portSubsetIndicator. Optionally, the length of the bitmap associated with / corresponding to the parameter portSubsetIndicator is K s *P, or the length of the bitmap associated / corresponding to the antenna port subset indication is K s *P.

[0262] The benefit of the above embodiment is that (when the first resource set corresponding to the CSI reporting configuration includes one or more groups,) the method for determining the resources corresponding to the sub-configuration in the CSI reporting configuration and the method related to calculating the CSI are clarified, thereby enabling the CSI reporting to use the sub-configuration to measure one or more groups (or the TRP corresponding to one or more groups), so that the base station can switch the TRP accordingly, thereby improving the efficiency of the communication system.

[0263] Figure 5 5 shows a method 500 executed by a base station according to an embodiment of the present disclosure. The method 500 includes: at 501, the base station sends a channel state information CSI reporting configuration to a user equipment, wherein the CSI reporting configuration includes a group of sub-configurations, and the CSI reporting configuration is configured with N ABC groups, and the N ABC The resources in the groups are from the first resource set for channel measurement corresponding to the CSI reporting configuration, where N ABC ≥1; At 502, the base station receives CSI based on the CSI reporting configuration from the user equipment, wherein the resources corresponding to each sub-configuration in the set of sub-configurations include at least one of the following: N com resource combinations, where the N com Each resource in each resource combination comes from the N ABC Different groups in groups, N com ≥1; the N ABC For a description of CSI reporting configuration, sub-configuration, resource combination, resource group, and resource, refer to the above description of Figure 4 Description.

[0264] Figure 6 FIG. 6 shows a structure 600 of a user equipment according to various embodiments of the present disclosure. Figure 6 As shown, the user equipment 600 includes a controller 610 and a transceiver 620, wherein the controller 610 is configured to execute the various methods performed by the user equipment disclosed herein, and the transceiver 620 is configured to transmit and receive channels or signals.

[0265] Figure 7 7 shows a structure 700 of a base station according to various embodiments of the present disclosure. Figure 7 As shown, the network device 700 includes a controller 710 and a transceiver 720, wherein the controller 710 is configured to execute various methods performed by the network device disclosed herein, and the transceiver 720 is configured to transmit and receive channels or signals.

[0266] In addition, “at least one item / at least one” described in the present disclosure includes any and / or all possible combinations of the listed items, the various embodiments described in the present disclosure and the various examples in the embodiments may be changed and combined in any appropriate form, and the “ / ” described in the present disclosure means “or”.

[0267] The various illustrative logical blocks, modules, and circuits described in the present disclosure may be implemented or executed with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in an alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors cooperating with a DSP core, or any other such configuration.

[0268] The steps of the method or algorithm described in the present disclosure can be directly embodied in hardware, in a software module executed by a processor, or in a combination of the two. The software module can reside in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a removable disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor so that the processor can read and write information from / to the storage medium. In an alternative, a storage medium can be integrated into a processor. The processor and the storage medium can reside in an ASIC. The ASIC can reside in a user terminal. In an alternative, the processor and the storage medium can reside in a user terminal as discrete components.

[0269] In one or more exemplary designs, the functions may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include both computer storage media and communication media, the latter including any media that facilitates the transfer of a computer program from one place to another. Storage media may be any available media that can be accessed by a general or special purpose computer.

[0270] The descriptions set forth herein, in conjunction with the accompanying drawings, describe example configurations, methods, and apparatus, and do not represent all examples that may be implemented or within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration," rather than "preferred" or "superior to other examples." The detailed description includes specific details for the purpose of providing an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some cases, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0271] Although this specification contains a number of specific implementation details, these should not be interpreted as limitations on any invention or the scope of the claimed protection, but rather as descriptions of specific features of specific embodiments of specific inventions. Certain features described in this specification in the context of separate embodiments may also be implemented in combination in a single embodiment. On the contrary, the various features described in the context of a single embodiment may also be implemented separately in multiple embodiments or in any suitable sub-combination. In addition, although features may be described above as working in certain combinations, and even initially claimed as such, in some cases, one or more features from the claimed combination may be deleted from the combination, and the claimed combination may be directed to a sub-combination or a variation of the sub-combination.

[0272] It should be understood that the specific order or hierarchy of steps in the method of the present disclosure is an illustration of an exemplary process. Based on design preferences, it is understood that the specific order or hierarchy of steps in the method can be rearranged to achieve the functions and effects disclosed in the present disclosure. The attached method claims present the elements of various steps in an example order, and are not meant to be limited to the specific order or hierarchy presented, unless otherwise specifically stated. In addition, although elements can be described or claimed in singular form, the plural number is also contemplated unless a limitation to the singular is explicitly stated. Therefore, the present disclosure is not limited to the examples shown, and any device for performing the functions described herein is included in the various aspects of the present disclosure.

[0273] The text and drawings are provided as examples only to help readers understand the present disclosure. They are not intended and should not be interpreted as limiting the scope of the present disclosure in any way. Although certain embodiments and examples have been provided, it is obvious to those skilled in the art based on what is disclosed herein that the embodiments and examples shown may be changed without departing from the scope of the present disclosure.

Claims

1. A method performed by a user equipment UE in a wireless communication system, the method comprising: Receive a channel state information CSI reporting configuration, wherein the CSI reporting configuration includes a group of sub-configurations, and the first resource set for channel measurement corresponding to the CSI reporting configuration is configured with N ABC groups, where N ABC ≥1; Determine and / or report CSI corresponding to one or more sub-configurations, The resource corresponding to each sub-configuration in the group of sub-configurations includes at least one of the following: N com The resources of the resource combination, wherein the N com Each resource in each resource combination comes from the N ABC Different groups in groups, N com ≥1; The N ABC resources in at least one of the groups.

2. The method according to claim 1, wherein: If the i-th sub-configuration in the group of sub-configurations is configured with high-level parameters for configuring resource combinations, the resources corresponding to the i-th sub-configuration include the N com A resource combination.

3. The method according to claim 1, wherein: The resource corresponding to the i-th sub-configuration in the group of sub-configurations is determined based on at least one of a resource sharing parameter, a first parameter related to the i-th sub-configuration, and a second parameter related to the i-th sub-configuration for indicating the resource in the group. ABC The resources in at least one of the N groups, wherein the first parameter is used to indicate the N ABC resources in one or more groups.

4. The method according to claim 3, wherein: If the i-th sub-configuration is configured with the first parameter and the second parameter, the resources corresponding to the i-th sub-configuration include the resources indicated by the second parameter in the one or more groups of resources determined by the first parameter; and / or, If the i-th sub-configuration is configured with the first parameter, and the i-th sub-configuration is not configured with the second parameter and / or the CSI reporting configuration is configured with the resource sharing parameter, then the resources corresponding to the i-th sub-configuration include all resources in one or more groups of resources determined by the first parameter.

5. The method according to claim 3, wherein: If the i-th sub-configuration is not configured with the second parameter and / or the CSI reporting configuration is not configured with the resource sharing parameter, then the N corresponding to the i-th sub-configuration ABC The resources in at least one of the groups include: A resource in the one or more groups that is not referenced by a resource combination corresponding to any sub-configuration in the group of sub-configurations; or There is no resource in the one or more groups referenced by a resource combination corresponding to any sub-configuration in the one or more sub-configurations.

6. The method according to claim 3, wherein: If the CSI reporting configuration is not configured with the resource sharing parameter, there is no intersection between the resources corresponding to the i-th subconfiguration in the group of subconfigurations and the resources corresponding to other subconfigurations in the group of subconfigurations except any i-th subconfiguration.

7. The method according to any one of claims 1 to 6, wherein: The bit width of the channel state information reference signal resource indicator CRI field in the CSI corresponding to the i-th sub-configuration in the one or more sub-configurations is determined based on the number of resources corresponding to the i-th sub-configuration and / or the number of resource combinations corresponding to the i-th sub-configuration.

8. The method according to any one of claims 1 to 7, wherein: If the i-th sub-configuration in the set of sub-configurations is configured with a third parameter, wherein the third parameter includes a parameter for indicating a port subset and / or a parameter for indicating a power offset, the third parameter is applicable to at least one of the following: All resources corresponding to the i-th sub-configuration; The resource corresponding to the i-th sub-configuration is in the N ABC A resource in at least one of the groups; The resource corresponding to the i-th sub-configuration is in the N com resources in a resource portfolio.

9. The method according to claim 8, wherein: If the resources corresponding to the i-th sub-configuration include N com resource combination and is configured with a plurality of third parameters, then the plurality of third parameters and the N com There is a one-to-one correspondence between each resource combination.

10. The method according to any one of claims 1 to 9, wherein: If the CSI reporting configuration is for periodic CSI reporting, the number of CSI processing unit CPUs occupied by the CSI reporting configuration is the total number of resources corresponding to each sub-configuration in the group of sub-configurations; or, If the CSI reporting configuration is for semi-persistent CSI reporting or aperiodic CSI reporting, the number of CPUs occupied by the CSI reporting configuration is the total number of resources corresponding to each sub-configuration in the one or more sub-configurations.

11. The method according to any one of claims 1 to 10, wherein: If the resources corresponding to the i-th sub-configuration in the group of sub-configurations include N com resource combination, the number of CPUs occupied by the i-th sub-configuration is based on the number of resources in the resource combination corresponding to the i-th sub-configuration and / or N com Determined; and / or, If the resources corresponding to the i-th sub-configuration in the group of sub-configurations include the N ABC If the number of CPUs occupied by the ith sub-configuration is the number of resources in at least one of the resource groups, the number of CPUs occupied by the ith sub-configuration is determined based on the number of resources in the resource group corresponding to the ith sub-configuration.

12. The method according to any one of claims 1 to 11, wherein: If a channel state information reference signal CSI-RS resource is referenced by Y sub-configurations, the CSI-RS resource is counted Y1 times, where Y≥1 and Y1≥1, Y1 is equal to the sum of the count times for the CSI-RS resource in each of the Y sub-configurations, or Y1 is equal to Y; and wherein, The Y subconfigurations are from the group of subconfigurations, or the Y subconfigurations are from the one or more subconfigurations.

13. The method according to claim 12, wherein: If the CSI-RS resource is referenced Z times by a resource combination and / or resource corresponding to one of the Y sub-configurations, the count number of times the CSI-RS resource corresponds to the sub-configuration is Z, where Z≥0.

14. The method according to claim 12, wherein: If the CSI reporting configuration is not configured with a resource sharing parameter, or the sub-configuration is not configured with a high-layer parameter for configuring a resource combination, the count number of times the CSI-RS resource corresponds to the sub-configuration is 1.

15. The method according to any one of claims 12 to 14, wherein: When the CSI-RS resource is a periodic resource and / or a semi-persistent resource, the Y sub-configurations are from the group of sub-configurations; or, When the CSI-RS resource is a non-periodic resource, the Y sub-configurations are from the one or more sub-configurations.

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