Method and apparatus for receiving and transmitting information

Abstract

The present disclosure provides a method performed by a user equipment (UE) in a wireless communication system and a UE performing the method. The method comprises: receiving channel state information (CSI) reporting configuration, the CSI reporting configuration indicating a resource set, Kgt, for channel measurement including K resources; 1; cSI associated with MR resources in the K resources and CSI associated with M-MR resources in the K resources are reported, MR > = 0, the M and the MR resources are indicated by the CSI reporting configuration, the M-MR resources are from resources except the MR resources in the K resources, the reported CSI comprises a CSI part 1 and a CSI part 2, and the M-MR resources are from resources except the MR resources in the K resources. Under the condition that the CSI reporting configuration indicates that each resource in the K resources corresponds to a rank indicator (RI) limit, the CSI part 1 associated with the mth resource in the M-MR resources is zero-filled to a fixed load size through a zero-filling bit, and m is greater than or equal to 1 and less than or equal to M-MR.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and more specifically, to methods and apparatus for receiving and transmitting information. Background Technology

[0002] To meet the increased demand for wireless data communication services since the deployment of 4G communication systems, efforts have been made to develop improved 5G or near-5G communication systems. Therefore, 5G or near-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 60GHz band, to achieve higher data rates. To reduce radio wave propagation loss and increase transmission distance, beamforming, massive MIMO, full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, and massive MIMO technologies are discussed in 5G communication systems.

[0004] In addition, in 5G communication systems, development is underway to improve system networks based on advanced small cells, cloud radio access networks (RAN), ultra-dense networks, device-to-device (D2D) communication, wireless backhaul, mobile networks, cooperative communication, cooperative multipoint (CoMP), and receiver interference cancellation.

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

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

[0007] To enhance the scheduling efficiency of 5G wireless communication systems, base stations need to acquire Channel State Information (CSI) to perform scheduling based on the CSI feedback from terminal devices. However, how to further improve the performance of CSI reporting remains an unresolved issue.

[0008] One aspect of this 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 indicates a resource set for channel measurement including K resources, K>1; and reporting M of the K resources.R CSI and MM associated with each resource R CSI associated with each resource, M R ≥0, where M and M R The resource is the configuration indicated by the CSI report, and the MM R The resources are derived from the K resources excluding M. R Resources other than the K resources, wherein the reported CSI includes CSI Part 1 and CSI Part 2, and the CSI reporting configuration indicates that each of the K resources corresponds to a rank indicator RI limit, the MM R The CSI portion 1 associated with the m-th resource in the 1 resource is zero-padded to a fixed payload size by zero-padding bits, 1 ≤ m ≤ MM. R .

[0009] In one example, the number of zero-padding bits in CSI section 1 associated with the m-th resource is the difference between a first number and a second number, where the first number is based on KM. R The RI limit for each of the resources is determined, and the second quantity is determined based on the RI limit for the m-th resource.

[0010] In one example, the first quantity is based on the KM R The KM is determined by the RI constraint for each resource in the resource. R The maximum value among the sizes of the RI fields, wherein the second quantity is the size of the RI field determined based on the RI constraint corresponding to the m-th resource.

[0011] In one example, the zero-padding bit is added after the RI field of the m-th resource association, and / or the zero-padding bit is added before the Channel Quality Indicator (CQI) field of the m-th resource association.

[0012] Another aspect of this 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 indicates a resource set for channel measurement including K resources, K>1; reporting CSIs associated with M resources among the K resources, wherein M is indicated by the CSI reporting configuration, 1<M≤K, wherein, when the CSIs are carried by a physical uplink control channel (PUCCH) and are of wideband frequency domain granularity, and the CSI reporting configuration indicates that each of the K resources corresponds to a rank indicator (RI) constraint, the CSI associated with the m-th resource among the M resources includes zero-padding bits, 1≤m≤M, wherein the number of zero-padding bits is determined based on the difference between a third number and a fourth number, wherein the third number is determined based on the size of the CSI field associated with each of the K resources, determined based on the corresponding RI constraint, and the fourth number is determined based on the size of the CSI field associated with the m-th resource.

[0013] In one example, the third quantity is the maximum value among the sizes of the CSI domains associated with each of the K resources.

[0014] In one example, the size of the CSI field associated with the kth resource among the K resources is determined based on the size of the RI field determined according to the RI constraints corresponding to the kth resource, where 1≤k≤K.

[0015] In one example, the size of the CSI field associated with the k-th resource is the sum of the size of the RI field determined based on the RI restrictions corresponding to the k-th resource and the size of the CSI field determined based on the value of the allowed reporting rank indicated by the RI restrictions corresponding to the k-th resource.

[0016] In one example, the size of the CSI field determined based on the value of the allowed reporting rank of the RI restriction indication corresponding to the k-th resource is the maximum size of the CSI field determined based on the value of each allowed reporting rank of the RI restriction indication corresponding to the k-th resource.

[0017] In one example, the size of the CSI field corresponding to the m-th resource is the sum of the size of the RI field determined based on the RI limit corresponding to the m-th resource and the size of the CSI field determined based on the reported rank corresponding to the m-th resource.

[0018] In one example, the number of ports for each of the K resources is greater than 1.

[0019] In one example, the zero-padding bit is added after the layer indicator LI field of the m-th resource association, and / or the zero-padding bit is added before the precoding matrix indicator PMI field of the m-th resource association.

[0020] In one example, the CSI domain includes at least one of the RI domain, PMI domain, CQI domain, and LI domain.

[0021] Another aspect of this 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 indicates a resource set for channel measurement including K resources, K>1; and reporting M of the K resources. R CSI and MM associated with each resource R CSI associated with each resource, M R ≥0, where M and M R The resource is the configuration indicated by the CSI report, and the MM R The resources are derived from the K resources excluding M. R Resources other than the K resources, wherein the reported CSI includes CSI Part 1 and CSI Part 2, and the CSI reporting configuration indicates that each of the K resources corresponds to a rank indicator RI limit, the MM R The resource-associated CSI part 1 is zero-padded to a fixed payload size by zero-padding bits.

[0022] In one example, the MM R The number of zero-padding bits in the CSI section 1 associated with each resource is the difference between the fifth and sixth numbers, wherein the fifth number is based on the KM. R The RI limit for each resource in the resource set is determined, and the sixth quantity is based on the MM. R The RI limit for each resource is determined.

[0023] In one example, the fifth quantity is based on the KM R The KM is determined by the RI constraint for each resource in the resource. R The size of each RI field in MM R The sum of the sizes of the RI fields.

[0024] In one example, the MM R The size of each RI field is KM R The largest MM among the sizes of the RI fields R Size of each RI field.

[0025] In one example, the sixth quantity is based on the MM. R The MM is determined by the RI constraint for each resource in the resource set. R The sum of the sizes of the RI fields.

[0026] In one example, the zero-padding bit is added to the MM. R The last part of CSI section 1 for each resource association.

[0027] Another aspect of this 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 indicates a resource set for channel measurement including K resources, K>1; reporting CSIs associated with M resources among the K resources, wherein M is indicated by the CSI reporting configuration, 1<M≤K, wherein the CSIs associated with the M resources are carried by a physical uplink control channel (PUCCH) and are of wideband frequency domain granularity, and wherein the CSI reporting configuration indicates that each of the K resources corresponds to a rank indicator (RI) constraint, the CSIs associated with the M resources include zero-padding bits, wherein the number of zero-padding bits is determined based on the difference between a seventh number and an eighth number, wherein the seventh number is determined based on the sum of the sizes of M CSI fields among the sizes of CSI fields associated with each of the K resources, determined based on the corresponding RI constraint, and the eighth number is determined based on the sum of the sizes of the CSI fields corresponding to the M resources.

[0028] In one example, the seventh quantity is the maximum value of the sum of the sizes of the M CSI fields associated with each of the K resources.

[0029] In one example, the size of the CSI field associated with the kth resource among the K resources is determined based on the size of the RI field determined according to the RI constraints corresponding to the kth resource, where 1≤k≤K.

[0030] In one example, the size of the CSI field associated with the k-th resource is the sum of the size of the RI field determined based on the RI restrictions corresponding to the k-th resource and the size of the CSI field determined based on the value of the allowed reporting rank indicated by the RI restrictions corresponding to the k-th resource.

[0031] In one example, the size of the CSI field determined based on the value of the allowed reporting rank of the RI restriction indication corresponding to the k-th resource is the maximum size of the CSI field determined based on the value of each allowed reporting rank of the RI restriction indication corresponding to the k-th resource.

[0032] In one example, the size of the CSI field corresponding to the m-th resource among the M resources is the sum of the size of the RI field determined based on the RI constraint corresponding to the m-th resource and the size of the CSI field determined based on the reported rank corresponding to the m-th resource, where 1 ≤ m ≤ M.

[0033] In one example, the zero-padding bit is added to the end of the CSI associated with the M resources.

[0034] In one example, the CSI field includes at least one of the RI field, the PMI field, the CQI field, and the LI field.

[0035] Another aspect of this disclosure provides a method performed by a base station in a wireless communication system, the method comprising: transmitting a Channel State Information (CSI) reporting configuration, wherein the CSI reporting configuration indicates a resource set for channel measurement including K resources, K>1; and receiving a CSI, the CSI including M of the K resources. R CSI and MM associated with each resource R CSI associated with each resource, M R ≥0, where M and M R The resource is the configuration indicated by the CSI report, and the MM R The resources are derived from the K resources excluding M. R Resources other than the K resources, wherein the received CSI includes CSI Part 1 and CSI Part 2, and the CSI reporting configuration indicates that each of the K resources corresponds to a rank indicator RI limit, the MM R The CSI portion 1 associated with the m-th resource in the 1 resource is zero-padded to a fixed payload size by zero-padding bits, 1 ≤ m ≤ MM. R .

[0036] In one example, the number of zero-padding bits in CSI section 1 associated with the m-th resource is the difference between a first number and a second number, where the first number is based on KM. R The RI limit for each of the resources is determined, and the second quantity is determined based on the RI limit for the m-th resource.

[0037] In one example, the first quantity is based on the KM R The KM is determined by the RI constraint for each resource in the resource. R The maximum value among the sizes of the RI fields, wherein the second quantity is the size of the RI field determined based on the RI constraint corresponding to the m-th resource.

[0038] In one example, the zero-padding bit is added after the RI field of the m-th resource association, and / or the zero-padding bit is added before the Channel Quality Indicator (CQI) field of the m-th resource association.

[0039] Another aspect of this disclosure provides a method performed by a base station in a wireless communication system, the method comprising: transmitting a Channel State Information (CSI) reporting configuration, wherein the CSI reporting configuration indicates a resource set for channel measurement including K resources, K>1; receiving a CSI, wherein the CSI includes CSIs associated with M resources among the K resources, M being indicated by the CSI reporting configuration, 1<M≤K, wherein, when the CSI is carried by a Physical Uplink Control Channel (PUCCH) and is of wideband frequency domain granularity, and the CSI reporting configuration indicates that each of the K resources corresponds to a Rank Indicator (RI) constraint, the CSI associated with the m-th resource among the M resources includes zero-padding bits, 1≤m≤M, wherein the number of zero-padding bits is determined based on the difference between a third number and a fourth number, wherein the third number is determined based on the size of the CSI field associated with each of the K resources, determined based on the corresponding RI constraint, and the fourth number is determined based on the size of the CSI field associated with the m-th resource.

[0040] In one example, the third quantity is the maximum value among the sizes of the CSI domains associated with each of the K resources.

[0041] In one example, the size of the CSI field associated with the kth resource among the K resources is determined based on the size of the RI field determined according to the RI constraints corresponding to the kth resource, where 1≤k≤K.

[0042] In one example, the size of the CSI field associated with the k-th resource is the sum of the size of the RI field determined based on the RI restrictions corresponding to the k-th resource and the size of the CSI field determined based on the value of the allowed reporting rank indicated by the RI restrictions corresponding to the k-th resource.

[0043] In one example, the size of the CSI field determined based on the value of the allowed reporting rank of the RI restriction indication corresponding to the k-th resource is the maximum size of the CSI field determined based on the value of each allowed reporting rank of the RI restriction indication corresponding to the k-th resource.

[0044] In one example, the size of the CSI field corresponding to the m-th resource is the sum of the size of the RI field determined based on the RI limit corresponding to the m-th resource and the size of the CSI field determined based on the reported rank corresponding to the m-th resource.

[0045] In one example, the number of ports for each of the K resources is greater than 1.

[0046] In one example, the zero-padding bit is added after the layer indicator LI field of the m-th resource association, and / or the zero-padding bit is added before the precoding matrix indicator PMI field of the m-th resource association.

[0047] In one example, the CSI domain includes at least one of the RI domain, PMI domain, CQI domain, and LI domain.

[0048] Another aspect of this disclosure provides a method performed by a base station in a wireless communication system, the method comprising: transmitting a Channel State Information (CSI) reporting configuration, wherein the CSI reporting configuration indicates a resource set for channel measurement including K resources, K>1; and receiving a CSI, the CSI including M of the K resources. R CSI and MM associated with each resource R CSI associated with each resource, M R ≥0, where M and M R The resource is the configuration indicated by the CSI report, and the MM R The resources are derived from the K resources excluding M. R Resources other than the K resources, wherein the received CSI includes CSI Part 1 and CSI Part 2, and the CSI reporting configuration indicates that each of the K resources corresponds to a rank indicator RI limit, the MM R The resource-associated CSI part 1 is zero-padded to a fixed payload size by zero-padding bits.

[0049] In one example, the MM R The number of zero-padding bits in the CSI section 1 associated with each resource is the difference between the fifth and sixth numbers, wherein the fifth number is based on the KM. R The RI limit for each resource in the resource set is determined, and the sixth quantity is based on the MM. R The RI limit for each resource is determined.

[0050] In one example, the fifth quantity is based on the KM R The KM is determined by the RI constraint for each resource in the resource. R The size of each RI field in MM R The sum of the sizes of the RI fields.

[0051] In one example, the MM RThe size of each RI field is KM R The largest MM among the sizes of the RI fields R Size of each RI field.

[0052] In one example, the sixth quantity is based on the MM. R The MM is determined by the RI constraint for each resource in the resource set. R The sum of the sizes of the RI fields.

[0053] In one example, the zero-padding bit is added to the MM. R The last part of CSI section 1 for each resource association.

[0054] Another aspect of this disclosure provides a method performed by a base station in a wireless communication system, the method comprising: transmitting a Channel State Information (CSI) reporting configuration, wherein the CSI reporting configuration indicates a resource set for channel measurement including K resources, K>1; receiving CSIs, wherein the CSIs include CSIs associated with M resources from the K resources, M being indicated by the CSI reporting configuration, 1<M≤K, wherein the CSIs associated with the M resources are carried by a Physical Uplink Control Channel (PUCCH) and are of wideband frequency domain granularity, and wherein the CSI reporting configuration indicates that each of the K resources corresponds to a Rank Indicator (RI) constraint, the CSIs associated with the M resources include zero-padding bits, wherein the number of zero-padding bits is determined based on the difference between a seventh number and an eighth number, wherein the seventh number is determined based on the sum of the sizes of M CSI fields associated with each of the K resources, determined based on the corresponding RI constraint, and the eighth number is determined based on the sum of the sizes of the CSI fields corresponding to the M resources.

[0055] In one example, the seventh quantity is the maximum value of the sum of the sizes of the M CSI fields associated with each of the K resources.

[0056] In one example, the size of the CSI field associated with the kth resource among the K resources is determined based on the size of the RI field determined according to the RI constraints corresponding to the kth resource, where 1≤k≤K.

[0057] In one example, the size of the CSI field associated with the k-th resource is the sum of the size of the RI field determined based on the RI restrictions corresponding to the k-th resource and the size of the CSI field determined based on the value of the allowed reporting rank indicated by the RI restrictions corresponding to the k-th resource.

[0058] In one example, the size of the CSI field determined based on the value of the allowed reporting rank of the RI restriction indication corresponding to the k-th resource is the maximum size of the CSI field determined based on the value of each allowed reporting rank of the RI restriction indication corresponding to the k-th resource.

[0059] In one example, the size of the CSI field corresponding to the m-th resource among the M resources is the sum of the size of the RI field determined based on the RI constraint corresponding to the m-th resource and the size of the CSI field determined based on the reported rank corresponding to the m-th resource, where 1 ≤ m ≤ M.

[0060] In one example, the zero-padding bit is added to the end of the CSI associated with the M resources.

[0061] In one example, the CSI field includes at least one of the RI field, the PMI field, the CQI field, and the LI field.

[0062] The method proposed in this application improves the performance of CSI, thereby enhancing the scheduling efficiency of the communication system. Attached Figure Description

[0063] The above and other aspects, features and advantages of this disclosure will become clearer when taken in conjunction with the accompanying drawings and the following detailed description.

[0064] Figure 1 The overall structure of an example wireless communication network according to various embodiments of the present disclosure is shown;

[0065] Figure 2A and Figure 2B Transmitting path 200 and receiving path 250 in a wireless communication network according to various embodiments of the present disclosure are shown respectively;

[0066] Figure 3A and Figure 3B The structures of user equipment (UE) and base stations in wireless communication networks according to various embodiments of the present disclosure are shown respectively;

[0067] Figure 4 Method 400 performed by a user equipment (UE) according to various embodiments of the present disclosure is illustrated;

[0068] Figure 5 A method 500 performed by a base station according to various embodiments of the present disclosure is shown;

[0069] Figure 6 The structure 600 of a user equipment according to various embodiments of the present disclosure is shown;

[0070] Figure 7The structure 700 of a base station according to various embodiments of the present disclosure is shown. Detailed Implementation

[0071] The following description, with reference to the accompanying drawings, is provided to aid in a thorough understanding of the various embodiments of this disclosure as defined by the claims and their equivalents. This description includes various specific details to aid understanding but should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of this disclosure. Furthermore, for clarity and brevity, descriptions of well-known functions and structures may be omitted.

[0072] The terms and wording used in the following description and claims are not limited to their dictionary meanings, but are merely used by the inventors to enable a clear and consistent understanding of this disclosure. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this disclosure is for illustrative purposes only and not for limiting the purpose of this disclosure as defined in the appended claims and their equivalents.

[0073] It should be understood that the singular forms of “one,” “an,” and “the” include plural references unless the context clearly indicates otherwise. Thus, for example, the reference to “component surface” includes one or more such surfaces.

[0074] The terms “comprising” or “may include” refer to the presence of a corresponding disclosed function, operation, or component that may be used in the various embodiments of this disclosure, rather than limiting the presence of one or more additional functions, operations, or features. Furthermore, the terms “comprising” or “having” may be interpreted as indicating certain characteristics, numbers, steps, operations, constituent elements, components, or combinations thereof, but should not be construed as excluding the possibility of the presence of one or more other characteristics, numbers, steps, operations, constituent elements, components, or combinations thereof.

[0075] The term "or" as used in the various embodiments of this disclosure includes any of the listed terms and all combinations thereof. For example, "A or B" may include A, may include B, or may include both A and B.

[0076] Unless otherwise defined, all terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of those skilled in the art as described herein. Common terms as defined in dictionaries are to be interpreted as having a meaning consistent with the context in the relevant technical field and should not be interpreted ideally or overly formally unless expressly defined in this disclosure.

[0077] The various embodiments of this disclosure can be applied to various communication systems, such as: Global System for Mobile Communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, Frequency Division Duplex (FDD) systems, Time Division Duplex (TDD) systems, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, 5th Generation (5G) systems, or New Radio (NR), etc. Furthermore, the various embodiments of this disclosure can be applied to future-oriented communication technologies.

[0078] Figure 1 An example wireless network 100 according to various embodiments of the present disclosure is shown. Figure 1 The embodiment of the wireless network 100 shown is for illustrative purposes only. Other embodiments of the wireless network 100 can be used without departing from the scope of this disclosure.

[0079] Wireless 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 proprietary IP network, or other data network).

[0080] Depending on the network type, other well-known terms such as "base station" or "access point" can be used instead of "gNodeB" or "gNB". For convenience, the terms "gNodeB" and "gNB" are used in this patent document to refer to network infrastructure components that provide wireless access for remote terminals. Furthermore, depending on the network type, other well-known terms such as "mobile station", "user 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 patent document to refer to remote wireless devices that wirelessly access the gNB, whether the UE is a mobile device (such as a mobile phone or smartphone) or a fixed device as commonly understood (such as a desktop computer or vending machine).

[0081] gNB 102 provides wireless broadband access to network 130 to multiple first user equipments (UEs) within its coverage area 120. The multiple first UEs include: UE 111, which may be located in a small business (SB); UE 112, which may be located in an enterprise (E); UE 113, which may be located in a WiFi hotspot (HS); UE 114, which may be located in a first residence (R); UE 115, which may be located in a second residence (R); and UE 116, which may be a mobile device (M), such as a cellular phone, wireless laptop computer, wireless PDA, etc. gNB 103 provides wireless broadband access to network 130 to multiple second UEs within its coverage area 125. The multiple second UEs include UE 115 and UE 116. In some embodiments, one or more of gNBs 101-103 are capable of communicating with each other and with UEs 111-116 using 5G, LTE, LTE-A, WiMAX, or other advanced wireless communication technologies.

[0082] The dashed lines indicate the approximate extent of coverage areas 120 and 125, which are shown as approximately circular for illustrative and explanatory purposes only. It should be clearly understood that coverage areas associated with the gNB, 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.

[0083] 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 this disclosure. In some embodiments, one or more of gNB 101, gNB 102, and gNB 103 support codebook design and architecture for systems having 2D antenna arrays.

[0084] although Figure 1 An example of a wireless network 100 is shown, but it is possible to... Figure 1 Various modifications can be made. For example, wireless network 100 can include any number of gNBs and any number of UEs in any suitable arrangement. Furthermore, gNB 101 can communicate directly with any number of UEs and provide those UEs with wireless broadband access to network 130. Similarly, each gNB 102-103 can communicate directly with network 130 and provide UEs with direct wireless broadband access to network 130. In addition, gNBs 101, 102, and / or 103 can provide access to other or additional external networks (such as external telephone networks or other types of data networks).

[0085] Figure 2A and Figure 2B Example wireless transmit and receive paths according to this disclosure are shown. In the following description, transmit path 200 can be described as being implemented in a gNB (such as gNB 102), while receive path 250 can be described as being implemented in a UE (such as UE 116). However, it should be understood that receive path 250 can be implemented in a gNB, and transmit path 200 can be implemented in a UE. In some embodiments, receive path 250 is configured to support codebook design and structure for a system having a 2D antenna array as described in embodiments of this disclosure.

[0086] 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, a cyclic prefix addition block 225, and an up-converter (UC) 230. The receive path 250 includes a down-converter (DC) 255, a cyclic prefix removal 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.

[0087] In transmit path 200, 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 modulated symbols. Serial-to-parallel (S-to-P) block 210 converts (e.g., demultiplexes) the serial modulated symbols into parallel data to generate N parallel symbol streams, where N is the number of IFFT / FFT points used in gNB 102 and UE 116. N-point IFFT block 215 performs IFFT operations on the N parallel symbol streams to generate a time-domain output signal. Parallel-to-serial block 220 converts (e.g., multiplexes) the parallel time-domain output symbols from N-point IFFT block 215 to generate a serial time-domain signal. Cyclic prefix addition block 225 inserts a cyclic prefix into the time-domain signal. Upconverter 230 modulates (e.g., upconverts) the output of the added cyclic prefix block 225 to an RF frequency for transmission via a wireless channel. The signal can also be filtered at the baseband before being converted to the RF frequency.

[0088] The RF signal transmitted from gNB 102 reaches UE 116 after passing through the wireless channel, and UE 116 performs the opposite operation to that at gNB 102. Downconverter 255 downconverts the received signal to the baseband frequency, and cyclic prefix removal block 260 removes the cyclic prefix to generate a serial time-domain baseband signal. Serial-to-parallel block 265 converts the time-domain baseband signal into 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.

[0089] Each of gNBs 101-103 can implement a transmission path 200 similar to that used for transmission to UEs 111-116 in the downlink, and a reception path 250 similar to that used for reception from UEs 111-116 in the uplink. Similarly, each of UEs 111-116 can implement a transmission path 200 for transmission to gNBs 101-103 in the uplink, and a reception path 250 for reception from gNBs 101-103 in the downlink.

[0090] Figure 2A and Figure 2B Each of the components can be implemented using only hardware, or using a combination of hardware and software / firmware. As a specific example, Figure 2A and Figure 2BAt least some of the components can be implemented in software, while others can be implemented in configurable hardware or a combination of software and configurable hardware. For example, FFT block 270 and IFFT block 215 can be implemented as configurable software algorithms, wherein the value of the number of points N can be modified according to the implementation method.

[0091] Furthermore, although the description uses FFT and IFFT, this is merely illustrative and should not be construed as limiting the scope of this disclosure. Other types of transforms, such as the Discrete Fourier Transform (DFT) and Inverse Discrete Fourier Transform (IDFT) functions, can be used. 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 that is a power of 2 (such as 1, 2, 4, 8, 16, etc.).

[0092] although Figure 2A and Figure 2B An example of a wireless transmit and receive path is shown, but it is possible to modify it further. Figure 2A and Figure 2B Make various changes. For example, Figure 2A and Figure 2B The various components can be combined, further subdivided, or omitted, and additional components can be added as needed. Furthermore, Figure 2A and Figure 2B This is intended to illustrate examples of the types of send and receive paths that can be used in a wireless network. Any other suitable architecture can be used to support wireless communication in a wireless network.

[0093] Figure 3A Example UE 116 according to this disclosure is shown. Figure 3A The embodiment of UE 116 shown is for illustrative purposes only, and Figure 1 UEs 111-115 can have the same or similar configurations. However, UEs have a wide variety of configurations, and Figure 3A This disclosure is not intended to limit the scope of any particular implementation of the UE.

[0094] UE 116 includes an antenna 301, a radio frequency (RF) transceiver 302, a transmit (TX) processing circuitry 303, a microphone 304, and a receive (RX) processing circuitry 305. UE 116 also includes a speaker 306, a controller / processor 307, an input / output (I / O) interface 308, multiple input devices 309, a display 310, and a memory 311. The memory 311 includes an operating system (OS) 312 and one or more applications 313.

[0095] RF transceiver 302 receives incoming RF signals transmitted by a gNB of wireless network 100 from antenna 301. RF transceiver 302 down-converts the incoming RF signals to generate an intermediate frequency (IF) or baseband signal. The IF or baseband signal is sent to RX processing circuitry 305, which generates a processed baseband signal by filtering, decoding, and / or digitizing the baseband or IF signal. RX processing circuitry 305 sends the processed baseband signal to speaker 306 (e.g., for voice data) or to controller / processor 307 (e.g., for web browsing data) for further processing.

[0096] TX processing circuitry 303 receives analog or digital voice data from microphone 304, or other outgoing baseband data (such as network data, email, or interactive video game data) from controller / processor 307. TX processing circuitry 303 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate processed baseband or IF signals. RF transceiver 302 receives the processed baseband or IF signals from TX processing circuitry 303 and up-converts the baseband or IF signals into RF signals transmitted via antenna 301.

[0097] The controller / processor 307 may include one or more processors or other processing devices and execute an OS 312 stored in memory 311 to control the overall operation of the UE 116. For example, the controller / processor 307 may control the reception of forward channel signals and the transmission of reverse channel signals through the RF transceiver 302, the RX processing circuit 305, and the TX processing circuit 303 according to known principles. In some embodiments, the controller / processor 307 includes at least one microprocessor or microcontroller.

[0098] The controller / processor 307 is also capable of executing other processes and programs residing in the memory 311, such as operations for channel quality measurement and reporting for a system having a 2D antenna array as described in the embodiments of this disclosure. The controller / processor 307 is capable of moving data into or out of the memory 311 as needed for the execution of the process. In some embodiments, the controller / processor 307 is configured to execute an application 313 based on the OS 312 or in response to signals received from a gNB or operator. The controller / processor 307 is also coupled to an I / O interface IF 308, which provides the UE 116 with the ability to connect to other devices such as laptop computers and handheld computers. The I / O interface 308 is the communication path between these accessories and the controller / processor 307.

[0099] The controller / processor 307 is also coupled to input devices(s) 309 and a display 310. An operator of the UE 116 can use the input devices(s) 309 to input data into the UE 116. The display 310 may be a liquid crystal display or another display capable of displaying text and / or at least limited graphics (such as from a website). Memory 311 is coupled to the controller / processor 307. A portion of memory 311 may include random access memory (RAM), while another portion of memory 311 may include flash memory or other read-only memory (ROM).

[0100] 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 can be combined, further subdivided, or omitted, and additional components can be added as needed. As a specific example, the controller / processor 307 can be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). Furthermore, although... Figure 3A The UE116 is shown configured as a mobile phone or smartphone, but the UE can be configured to operate as other types of mobile or fixed devices.

[0101] Figure 3B An example gNB 102 according to this disclosure is shown. Figure 3B The embodiment of gNB 102 shown is for illustrative purposes only, and Figure 1 Other gNBs can have the same or similar configurations. However, gNBs have a wide variety of configurations, and Figure 3B The scope of this 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 structures as gNB 102.

[0102] like Figure 3B As shown, 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.

[0103] RF transceivers 372a-372n receive incoming RF signals, such as signals transmitted by the UE or other gNBs, from antennas 370a-370n. RF transceivers 372a-372n down-convert the incoming RF signals to generate IF or baseband signals. The IF or baseband signals are sent to RX processing circuitry 376, which generates processed baseband signals by filtering, decoding, and / or digitizing the baseband or IF signals. RX processing circuitry 376 sends the processed baseband signals to controller / processor 378 for further processing.

[0104] 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. RF transceivers 372a-372n receive the outgoing processed baseband or IF signal from the TX processing circuit 374 and up-convert the baseband or IF signal into an RF signal transmitted via antennas 370a-370n.

[0105] The controller / processor 378 may include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, the controller / processor 378 may control the reception of forward channel signals and the transmission of reverse channel signals via RF transceivers 372a-372n, RX processing circuitry 376, and TX processing circuitry 374, according to known principles. The controller / processor 378 may also support additional functions, such as more advanced wireless communication functions. For example, the controller / processor 378 may perform a BIS process, such as by a blind interference sensing (BIS) algorithm, and decode the received signal after subtracting interference. The controller / processor 378 may support any of a wide variety of other functions in the gNB 102. In some embodiments, the controller / processor 378 includes at least one microprocessor or microcontroller.

[0106] The controller / processor 378 is also capable of executing programs and other processes, such as a basic operating system, residing in the memory 380. The controller / processor 378 is also capable of supporting channel quality measurement and reporting for systems having 2D antenna arrays as described in embodiments of this disclosure. In some embodiments, the controller / processor 378 supports communication between entities such as web RTCs. The controller / processor 378 is capable of moving data into or out of the memory 380 as needed for the execution of processes.

[0107] The controller / processor 378 is also coupled to a backhaul or network interface 382. The backhaul or network interface 382 allows the gNB 102 to communicate with other devices or systems via a backhaul connection or over a network. The backhaul or network interface 382 is capable of supporting communication via any suitable wired or wireless connection(s). 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 technologies or NR, LTE, or LTE-A), the backhaul or network interface 382 allows 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 allows 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 architecture supporting communication via a wired or wireless connection, such as an Ethernet or RF transceiver.

[0108] Memory 380 is coupled to controller / processor 378. A portion of memory 380 may include RAM, while another portion may include flash memory or other ROM. In some embodiments, multiple instructions, such as a BIS algorithm, are stored in memory. The multiple instructions are configured to cause 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.

[0109] As described in more detail below, the transmit and receive paths of the gNB 102 (implemented using RF transceivers 372a-372n, TX processing circuitry 374, and / or RX processing circuitry 376) support aggregated communication with FDD and TDD cells.

[0110] although Figure 3B An example of gNB 102 is shown, but more can be found on... Figure 3B Various modifications can be made. For example, gNB102 can include any number of... Figure 3A Each component shown. As a specific example, an access point can include multiple backhaul or network interfaces 382, ​​and a controller / processor 378 can support routing functions to route data between different network addresses. As another specific example, although shown as a single instance including TX processing circuitry 374 and a single instance including RX processing circuitry 376, the gNB 102 can include multiple instances of each (such as one for each RF transceiver).

[0111] Exemplary embodiments of this disclosure are further described below with reference to the accompanying drawings.

[0112] In this document, the term “Channel State Information (CSI)” may be used interchangeably with the terms “CSI parameter” or “CSI quantity”.

[0113] In this document, CSI may include at least one of the following: CSI-RS Resource Indicator (CRI), Rank Indicator (RI), Precoding Matrix Indicator (PMI), Channel Quality Indicator (CQI), Layer Indicator (LI), Synchronization Signal (SS) / Physical Broadcast Channel (PBCH) Block Resource Indicator (SSBRI), Layer 1-Reference Signal Received Power (L1-RSRP), Layer 1-Single to Interference Noise Ratio (L1-SINR), and Capability Index.

[0114] In this document, the term “CSI reporting configuration” may be used interchangeably with the terms “CSI reporting configuration information” or “information for CSI reporting configuration” or “information for configuring CSI reporting”.

[0115] In this article, CSI can be either a single report or a CSI reported by the UE within a single report instance.

[0116] In this document, the term "reference signal" may be used interchangeably with the term "reference signal resource".

[0117] In this document, the reference signal may include at least one of the following: a reference signal for synchronization, a reference signal for demodulation (e.g., a demodulation reference signal (DM-RS)), a reference signal for acquiring channel state, a reference signal for phase tracking, a reference signal for mobility, a reference signal for positioning, a reference signal for channel measurement, a reference signal for interference measurement, and a reference signal for sounding. Optionally, the reference signal for synchronization may include at least one of the following: a primary synchronization signal and a secondary synchronization signal. Optionally, the reference signal for synchronization may include a synchronization signal / physical broadcast channel block (SS / PBCH block, SSB). Optionally, the reference signal for demodulation may include at least one of the following: a reference signal for data channel demodulation and a reference signal for control channel demodulation. Optionally, the data channel may include at least one of the following: a Physical Downlink Shared Channel (PDSCH) and a Physical Uplink Shared Channel (PUSCH). Optionally, the control channel may include at least one of the following: a Physical Downlink Control Channel (PDCCH) and a Physical Uplink Control Channel (PUCCH). Optionally, the reference signal used to acquire the channel state may include at least one of the following: a reference signal for tracking, a reference signal for CSI acquisition, and a reference signal for beam management. Optionally, the reference signal used for beam management may include at least one of the following: a reference signal for acquiring L1-RSRP and a reference signal for acquiring L1-SINR. Optionally, acquiring L1-RSRP may be by calculating L1-RSRP. Optionally, acquiring L1-SINR may be by calculating L1-SINR. In this document, the "reference signal used for sounding" may be referred to as the sounding reference signal (SRS).

[0118] In this document, the term "beam" may include at least one of the following: "quasi-co-location (QCL) parameter", "transmission configuration indication (TCI) status", "spatial filter", "antenna port", "transmission and reception point (TRP)", "reference signal", "beam information", and "beam index". Optionally, one beam being identical to another can mean that one beam and another beam are quasi-co-located.

[0119] In this paper, an antenna port can be defined such that the channel over which a symbol on the antenna port is conveyed can be inferred from the channel over which another symbol on the same antenna port is conveyed.

[0120] In this paper, two antenna ports are considered quasi-co-located if the large-scale properties of the channel over which a symbol on one antenna port is conveyed can be inferred from the channel over which a symbol on the other antenna port is conveyed. Optionally, the large-scale properties include one or more of delay spread, Doppler spread, Doppler shift, average gain, average delay, and spatial Rx parameters.

[0121] In this document, the term "QCL parameter" may be used interchangeably with the terms "QCL information," "QCL assumption," "QCL configuration," and "QCL configuration and / or QCL type." Optionally, a QCL parameter may include / represent at least one of the following: Doppler shift, Doppler spread, average delay, delay spread, or spatial reception parameter. The spatial reception parameter can be a parameter used for spatial reception. Optionally, a QCL parameter may include a combination of different types of parameters. For example, a QCL parameter may include: Doppler shift, Doppler spread, average delay, and delay spread; this type of QCL parameter may be referred to as QCL parameter type A. For example, a QCL parameter may include: Doppler shift and Doppler spread; this type of QCL parameter may be referred to as QCL parameter type B. For example, a QCL parameter may include: Doppler shift and average delay; this type of QCL parameter may be referred to as QCL parameter type C. For example, QCL parameters may include spatial reception parameters, which may be referred to as QCL parameter type D. For instance, if the large-scale properties of the channel over which a symbol is conveyed on one antenna port can be inferred from the channel over which a symbol is conveyed on the other antenna port, then the two antenna ports can be considered quasi-co-located. Optionally, large-scale properties include one or more of delay spread, Doppler spread, Doppler shift, average gain, average delay, and spatial reception parameters. For instance, if the spatial reception parameters of the channel over which a symbol is conveyed on one antenna port can be inferred from the channel over which a symbol is conveyed on the other antenna port, then the two antenna ports are considered quasi-co-located according to QCL parameter type D.

[0122] In this document, the term "TCI state" may be used interchangeably with the terms "TCI state configuration," "TCI state configuration information," "information for configuring the TCI state," or "information for indicating the TCI state." Optionally, the TCI state can be a unified TCI state. Optionally, the TCI state can be at least one of an uplink TCI state (UL TCI state), a downlink TCI state (DL TCI state), or a joint TCI state. Optionally, the unified TCI state can be an uplink TCI state (UL TCI state) and a downlink TCI state (DL TCI state), or a joint TCI state.

[0123] Optionally, a TCI state may include parameters configuring a quasi-co-location relationship. These parameters configure the relationship between a reference signal (e.g., one or two reference signals, or one or two downlink reference signals) and at least one of the following: the demodulation reference signal (DM-RS) port of the PDSCH, the DM-RS port of the PDCCH, or the CSI-RS port of the CSI-RS resource. Optionally, the quasi-co-location relationship is configured by higher-layer parameters (e.g., qcl-Type1) for the first downlink reference signal. Optionally, the quasi-co-location relationship is configured by higher-layer parameters (e.g., qcl-Type2) for the second downlink reference signal. In the case of two downlink reference signals, the QCL types should not be the same, regardless of whether the references are to the same DL RS or different DL RSs.

[0124] In this document, the term "spatial domain filter" may be used interchangeably with the terms "spatial filter," "uplink transmission spatial domain filter," "spatial domain filter for uplink transmission," or "spatial domain filter for downlink reception."

[0125] In this document, the term “opportunity to transmit a reference signal resource” may be used interchangeably with the terms “opportunity to receive a reference signal resource” or “opportunity to transmit a reference signal” or “opportunity to receive a reference signal” or “opportunity to transmit a reference signal” or “opportunity to receive a reference signal”.

[0126] In this document, the term "UE capability" may be used interchangeably with the terms "UE feature", "UE feature group", "UE capability parameter", "reported UE capability", "UE capability signaling", or "reported UE capability parameter".

[0127] In this disclosure, time-domain resources may include / correspond to several time-domain units.

[0128] In this paper, the temporal unit can be one of: frame, subframe, time slot, sub-time slot, or symbol. Optionally, a sub-time slot can be a subset of a time slot in the temporal domain. For example, the symbols included in a sub-time slot are a subset of the symbols included in a time slot. Optionally, in this paper, the temporal unit can be one of: second, millisecond, microsecond, nanosecond, or sample point.

[0129] In this disclosure, frequency domain resources may include / correspond to several frequency domain units.

[0130] In this paper, a frequency domain unit can be at least one of the following: band, subband, component carrier (CC), bandwidth part (BWP), resource block, resource block group (RBG), subcarrier, carrier, frequency band, frequency range, cell, and serving cell. A resource block can be a physical resource block (PRB) or a common resource block (CRB). A frequency range can be frequency range 1 and frequency range 2 (e.g., frequency range 2-1 and / or frequency range 2-2).

[0131] In this paper, the time-frequency unit can be either a resource element (RE) or a resource element group (REG). A resource element group can include one or more resource elements. For example, a resource element group can include 6 or 12 resource elements.

[0132] In this paper, the starting time-domain position of a channel, signal, or resource is an earlier position in the time domain, and the ending time-domain position of a channel, signal, or resource is a later position in the time domain.

[0133] In this paper, the starting frequency domain position of a channel, signal, or resource is a lower position in the frequency domain, and the ending frequency domain position of a channel, signal, or resource is a higher position in the frequency domain.

[0134] In this document, the term "PDCCH" may be used interchangeably with the terms "downlink control channel" or "control channel for downlink transmission" or "control channel for downlink".

[0135] In this document, the term “PDCCH” may be used interchangeably with the term “PDCCH candidate”.

[0136] In this document, the term “PDSCH” may be used interchangeably with the terms “downlink data channel” or “data channel for downlink transmission” or “data channel for downlink”.

[0137] In this document, the term "PUCCH" may be used interchangeably with the terms "uplink control channel" or "control channel for uplink transmission" or "control channel for uplink".

[0138] In this document, the term “PUSCH” may be used interchangeably with the terms “uplink data channel” or “data channel for uplink transmission” or “data channel for uplink transmission”.

[0139] In this document, the term “Downlink Control Information (DCI)” may be used interchangeably with the terms “DCI format” or “control information for downlink”.

[0140] In this document, the term "Uplink Control Information (UCI)" may be used interchangeably with the term "control information for uplink".

[0141] In this paper, DCI detection includes receiving and / or decoding DCI.

[0142] In this document, the term "information bits of DCI / UCI" may be used interchangeably with the terms "information bits associated with DCI / UCI," "information bits included in DCI / UCI," or "information bits corresponding to DCI / UCI." Optionally, the information bits associated with DCI / UCI may include: the information bits of the DCI / UCI and the check bits corresponding to that DCI / UCI (e.g., Cyclic Redundancy Check (CRC) bits). Alternatively, the information bits associated with DCI / UCI may include: the information bits of the DCI / UCI and bits used to check that DCI / UCI (e.g., Cyclic Redundancy Check (CRC) bits).

[0143] In this document, the term "information bits of PDSCH / PUSCH" may be used interchangeably with the terms "information bits associated with PDSCH / PUSCH," "information bits carried by PDSCH / PUSCH," "information bits of a TB included in PDSCH / PUSCH," or "information bits of a TB carried by PDSCH / PUSCH." Optionally, the information bits associated with the information bits carried by PDSCH / PUSCH may include: the information bits of a TB carried by PDSCH / PUSCH and the check bits corresponding to that TB (e.g., Cyclic Redundancy Check (CRC) bits). Optionally, the information bits associated with PDSCH / PUSCH may include: the information bits of PDSCH / PUSCH and bits used to check the TB carried by that PDSCH / PUSCH (e.g., Cyclic Redundancy Check (CRC) bits).

[0144] In this document, the term “size of the information field” may be used interchangeably with the terms “bit width of the information field” or “number of information bits in the information field”.

[0145] In this paper, the information bits of the DCI can be: the information bits included in the DCI, or the information bits associated with the DCI, or the payload of the DCI.

[0146] In this paper, the existence of an information field is defined as a field whose size is greater than 0 bits. The non-existence of an information field is defined as a field whose size is equal to 0 bits.

[0147] In this paper, the value x of an information field can correspond to the (x+1)th code point of that information field, where x ≥ 0. The terms "value of an information field" and "code point of an information field" are interchangeable.

[0148] In this document, the term “Control Resource Set (CORESET)” may be used interchangeably with the terms “control resource” or “resource for receiving control information” or “resource for listening to PDCCH” or “resource for detecting control information”.

[0149] In this document, the term "search space" may be used interchangeably with the terms "PDCCH search space," "PDCCH search space set," "PDCCH candidate search space," "PDCCH candidate search space set," "search space used for searching PDCCH," "search space used for searching PDCCH candidates," "search space set used for searching PDCCH," or "search space set used for searching PDCCH candidates." Optionally, the search space can be a Common Search Space (CSS) or a UE-specific Search Space (USS). Optionally, the search space can be used for detecting DCI. Optionally, the search space can be used for detecting DCI formats.

[0150] In this paper, the term “PDCCH candidate associated with the search space” can be used interchangeably with the term “PDCCH candidate in the search space”.

[0151] In this paper, the modulation method associated with a PDCCH candidate can be the modulation method used by the corresponding PDCCH candidate. The aggregation level associated with a PDCCH candidate can be the aggregation level of the corresponding PDCCH candidate.

[0152] In this document, the UE can listen to the PDCCH (or listen to PDCCH candidates) during a PDCCH listening opportunity. Optionally, a PDCCH listening opportunity can be one or more (contiguous) time-domain units. Optionally, a PDCCH listening opportunity can be: an opportunity for listening to the PDCCH, or an opportunity for listening to PDCCH candidates.

[0153] In this paper, monitoring PDCCH candidates can be: receiving PDCCH candidates and / or decoding according to the monitored DCI formats.

[0154] In this document, the DCI format can be at least one of: DCI format 0_0, DCI format 0_1, DCI format 0_2, DCI format 0_3, DCI format 1_0, DCI format 1_1, DCI format 1_2, and DCI format 1_3. In this document, the type of the DCI format can be one of the following: DCI format 0_0, DCI format 0_1, DCI format 0_2, DCI format 0_3, DCI format 1_0, DCI format 1_1, DCI format 1_2, and DCI format 1_3.

[0155] In this paper, the Hybrid Automatic Repeat Request (HARQ) message can be a Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) message.

[0156] In this document, the PDCCH may carry the DCI and / or the corresponding CRC, or the DCI and / or the corresponding CRC may be present in the PDCCH. Optionally, the CRC may be scrambled in a specific manner. For example, the CRC may be scrambled based on the Radio Network Temporary Identifier (RNTI). Two PDCCHs having the same scrambling may be that both PDCCHs are scrambled with the same RNTI. Optionally, the RNTI may be either the Cell Radio Network Temporary Identifier (C-RNTI) or the Configuration and Scheduling Radio Network Temporary Identifier (CS-RNTI).

[0157] In this document, higher-level parameters include at least one of Radio Resource Control (RRC) parameters and Media Access Control (MAC)-Control Element (CE) (MAC-CE) parameters. RRC parameters can be parameters configured / indicated by RRC signaling. MAC-CE parameters can be parameters indicated / activated by MAC-CE signaling. Optionally, information configured by higher-level parameters can mean that information is indicated / activated by higher-level parameters.

[0158] In this document, higher-level signaling includes at least one of RRC parameters and MAC-CE indication parameters; or, higher-level signaling may include at least one of RRC signaling and MAC-CE signaling. Optionally, the configuration of information by higher-level signaling may be: information is indicated / activated by higher-level signaling.

[0159] In this document, UE obtaining configuration information can refer to: UE receiving / being configured with configuration information. In this document, "obtaining configuration information" can be used interchangeably with the terms "receiving configuration information" or "being configured with configuration information."

[0160] In this article, a cell includes at least one of the following: serving cell, candidate cell, primary cell, secondary cell, and special cell. A special cell can be a currently existing special cell.

[0161] In this paper, when a DCI schedules a channel or signal, the cell that receives or transmits that channel or signal can be referred to as the scheduled cell. The cell that the DCI is detected in, or the cell that listens to / receives the DCI, can be referred to as the scheduling cell.

[0162] In this paper, when a DCI schedules a channel or signal, the BWP that receives or transmits that channel or signal can be referred to as the scheduled BWP. The BWP that the DCI detects, or the BWP that listens to / receives the PDCCH associated with the DCI, can be referred to as the scheduling BWP.

[0163] In this disclosure, "determining a measurement" can mean: determining the result of a measurement, or acquiring the result of a measurement, or acquiring a measurement based on a reference signal, or acquiring a measurement based on measurement resources, or acquiring a measurement used to determine the CSI.

[0164] In this disclosure, "determining channel measurement" can be: determining the result of channel measurement, or acquiring the result of channel measurement, or acquiring channel measurement based on a reference signal, or acquiring channel measurement based on measurement resources, or acquiring channel measurement used to determine CSI.

[0165] In this disclosure, "determining interference measurement" can be: determining the result of interference measurement, or acquiring the result of interference measurement, or acquiring interference measurement based on a reference signal, or acquiring interference measurement based on measurement resources, or acquiring interference measurement used to determine CSI.

[0166] In this disclosure, the term "uplink channel associated with CSI report" may be used interchangeably with the terms "uplink channel corresponding to CSI report" or "uplink channel carrying CSI report".

[0167] In this disclosure, a parameter set (numerology) can refer to a group of parameters that define the basic time and frequency units in a wireless communication system. These parameters can be used to determine the waveform of a signal, subcarrier spacing, and sampling rate. The parameter set can include at least one of the following: subcarrier spacing, cyclic prefix, symbol period, sampling rate, time slot length, and frame structure. Optionally, the subcarrier spacing can be the frequency difference between two adjacent subcarriers, typically in Hertz (Hz). The subcarrier spacing determines the bandwidth and time resolution of the system. Optionally, the cyclic prefix is ​​a cyclic prefix added to the beginning of an OFDM symbol. The length of the cyclic prefix is ​​related to the subcarrier spacing: the cyclic prefix is ​​added to reduce the effects of multipath propagation. Optionally, the symbol period can be the duration of an OFDM symbol. Optionally, the symbol period can be the reciprocal of the subcarrier spacing. Optionally, the sampling rate can be the sampling frequency used when receiving and transmitting signals. Optionally, the sampling rate is related to the subcarrier spacing. Optionally, the time slot length can be: in a Time Division Duplex (TDD) system, the time period used to distinguish between the uplink and downlink. Optionally, the slot length is related to the subcarrier spacing and symbol period. Optionally, the frame structure is used to define the organization of slots within a frame, including the frame length and the number of slots. In 5G New Radio (NR), various parameter set configurations can be supported to adapt to different frequency bands and application scenarios. For example, low-frequency bands may use larger subcarrier spacing to support wider bandwidth and longer transmission distances, while high-frequency bands may use smaller subcarrier spacing to support higher data rates and lower latency.

[0168] In this paper, a cell can be a primary cell (PCell) and / or a primary secondary cell (PSCell) and / or a secondary cell and / or a special cell. A cell can be either a primary cell or a secondary cell. A special cell can be either a PCell or a PSCell. In dual-connectivity operations, a special cell refers to the primary cell of the Master Cell Group (MCG) or the primary / secondary cell of the Secondary Cell Group (SCG); otherwise, a special cell refers to the primary cell. A cell can be a serving cell or a non-serving cell.

[0169] Figure 4Method 400 performed by a user equipment (UE) according to various embodiments of the present disclosure is illustrated. Method 410 includes: at 410, the UE receives a CSI reporting configuration from a base station, wherein the CSI reporting configuration indicates a resource set for channel measurement including K resources, K>1; at 420, 1) when M of the K resources R When a resource is configured for reporting, the UE reports M. R CSI and MM associated with each resource R CSI associated with each resource, M R ≥0, where M and M R The resource is a configuration instruction reported by CSI, where 1 < M ≤ K, and M < M. R One resource comes from M of K resources. R KM outside of resources R There are K resources, where the reported CSI includes CSI Part 1 and CSI Part 2, and the CSI reporting configuration indicates that each of the K resources corresponds to an RI limit: MM R The m-th (1≤m≤MM) resource R The CSI portion 1 associated with each resource is zero-padded to a fixed load size, or MM. R The CSI portion 1 associated with each resource is zero-padded to a fixed load size; or, 2)(when M R When no resource is configured for reporting, report the CSI associated with M resources, where M is the CSI reporting configuration indication, 1 < M ≤ K, and the M resources come from K resources. Where the CSI associated with the M resources is carried by PUCCH and is at wideband frequency domain granularity, and the CSI reporting configuration indication specifies that each of the K resources corresponds to an RI constraint: i) The CSI associated with the m-th (1 ≤ m ≤ M) resource among the M resources includes zero-padding bits, where the number of zero-padding bits is determined based on the difference between a third number and a fourth number, where the m-th (1 ≤ m ≤ M) resource... The third quantity is determined based on the size of the CSI field associated with each of the K resources, which is determined based on the corresponding RI constraint, and the fourth quantity is determined based on the size of the CSI field associated with the m-th resource. Alternatively, ii) the CSI associated with the M resources includes zero-padding bits, wherein the number of zero-padding bits is determined based on the difference between the seventh and eighth quantities, wherein the seventh quantity is determined based on the sum of the sizes of the M CSI fields associated with each of the K resources, and the eighth quantity is determined based on the sum of the sizes of the CSI fields corresponding to the M resources.

[0170] The following describes in detail each step of the above method 400.

[0171] The UE can receive / be configured with CSI reporting configuration (e.g., CSI-ReportConfig). Optionally, the CSI reporting configuration can be associated with / correspond to CSI resource settings. Optionally, a CSI resource setting (e.g., CSI-ResourceConfig) can be associated with / correspond to one or more resource sets. Optionally, a CSI resource setting can indicate one or more resource sets. Optionally, CSI reporting configuration information can indicate / configure / associate with (one or more) resource sets. Optionally, a resource set can include one or more resources. Optionally, a resource set can include at least one of CSI-RS resources, SSB resources, and CSI interference measurement (CSI-IM) resources. Optionally, the CSI-RS resource can be a non-zero power (NZP) CSI-RS. Optionally, the CSI reporting configuration information can indicate / configure / associate with at least one of the following:

[0172] ● A resource set used for channel measurements. Optionally, this resource set includes K resources. Optionally, K ≥ 1, or K > 1, or K ≥ 2. Optionally, this resource set can be configured by the higher-layer parameter NZP-CSI-RS-ResourceSet, where the parameter includes configuration information for one or more resources. The resource can be a CSI-RS resource and / or an SSB resource. Optionally, each CSI-RS resource in the resource set has the same number of ports. Optionally, each CSI-RS resource in the resource set has less than or equal to 32 ports.

[0173] ● A resource set for interference measurement. This resource set includes K_inter resources. Optionally, K_inter ≥ 1. Optionally, the resources can be CSI-RS resources and / or CSI-IM resources. Optionally, resources in the resource set for channel measurement can be associated with resources in the resource set for interference measurement. Optionally, the UE determines CSI based on the resources for channel measurement and the associated resources for interference measurement.

[0174] ■ When the resource set used for interference measurement includes CSI-IM resources, K_inter = K. Optionally, the K resources used for channel measurement are in one-to-one correspondence / association with the K resources used for interference measurement. Optionally, the k-th resource in the resource set used for channel measurement is associated with the k-th resource in the resource set used for interference measurement. Optionally, k ≥ 1 and / or k ≤ K. For example, if the interference measurement is performed on CSI-IM, then each resource used for channel measurement (e.g., a CSI-RS resource) is associated with one interference measurement resource (e.g., a CSI-IM resource). For example, if interference measurement is performed on CSI-IM, each resource (e.g., CSI-RS resource) for channel measurement is resource-wise associated with a resource (e.g., CSI-IM resource) by the ordering of the CSI-RS resources and CSI-IM resources in the corresponding resource sets. For example, if the resource set used for channel measurement includes {CSI-RS#1, CSI-RS#2, CSI-RS#3, CSI-RS#4}, and the resource set used for interference measurement includes {CSI-IM#1, CSI-IM#2, CSI-IM#3, CSI-IM#4}, then CSI-RS#1 is associated with CSI-IM#1; CSI-RS#2 is associated with CSI-IM#2; CSI-RS#3 is associated with CSI-IM#3; and CSI-RS#4 is associated with CSI-IM#4.

[0175] ■ When the resource set used for interference measurement includes CSI-RS resources, K_inter = 1. Optionally, each of the K resources used for channel measurement is associated with one resource used for interference measurement. For example, if the interference measurement is performed on CSI-RS, then each resource used for channel measurement (e.g., a CSI-RS resource) is associated with this interference measurement resource (e.g., a CSI-RS resource). For example, if the resource set used for channel measurement includes {CSI-RS#1, CSI-RS#2, CSI-RS#3, CSI-RS#4}; and the resource set used for interference measurement includes {CSI-RS#5}, then CSI-RS#1 is associated with CSI-RS#5; CSI-RS#2 is associated with CSI-RS#5; CSI-RS#3 is associated with CSI-RS#5; and CSI-RS#4 is associated with CSI-RS#5.

[0176] Optionally, the K resources in the resource set used for channel measurement can be configured with a common rank restriction. Optionally, the K resources in the resource set used for channel measurement can be configured with a single rank restriction. Optionally, this rank restriction applies to each of the K resources.

[0177] Optionally, the K resources in the resource set used for channel measurement can each be configured with a rank restriction. Optionally, each of the K resources in the resource set can be configured with a corresponding / associated / corresponding rank restriction. Optionally, the K rank restrictions can be configured. Optionally, the K rank restrictions can also be referred to as resource-specific rank restrictions. Optionally, the K rank restrictions can be configured through higher-layer parameters. Optionally, the K rank restrictions can be configured through CSI reporting configuration. Optionally, the k-th resource among the K resources corresponds to / is associated with / corresponds to the k-th rank restriction among the K rank restrictions, where 1≤k≤K.

[0178] Optionally, the CSI of a CSI-RS resource (or the CSI associated with a CSI-RS resource) is determined based on the rank restrictions corresponding to / associated with that CSI-RS resource. Optionally, the rank restrictions corresponding to / associated with a CSI-RS resource apply to the determination of the CSI of that CSI-RS resource (e.g., the determination of RI and / or PMI). Optionally, the rank restriction can be an RI restriction. Optionally, a rank restriction refers to a restriction on RI. Optionally, a rank restriction refers to a restriction on the value of RI. Optionally, a rank restriction refers to a restriction on RI and / or PMI. Optionally, a rank restriction refers to a restriction on RI and / or the PMI corresponding to RI. Optionally, a rank restriction can be used to indicate which number of layers is not allowed, or which number of layers is allowed. Optionally, a rank restriction can be used to indicate which RI values ​​are not allowed, or which RI values ​​are allowed. In this document, allowed rank can be understood as: the number of allowed layers, or the allowed value of RI. Here, "an RI value is allowed" means that an RI value is allowed to be reported. "An RI value is not allowed" means that an RI value is not allowed to be reported. In this document, the term "allowed rank" can be used interchangeably with the term "number of allowed layers" or "allowed RI values". Optionally, the rank restriction can be determined by a parameter used to indicate the rank restriction (e.g., typeI-SinglePanel-ri-Restriction, or typeII-RI-Restriction, or ri-Restriction). Optionally, a parameter used to indicate the rank restriction includes / forms / indicates a bitmap. The number of bits can be a bit sequence. Optionally, the bitmap used for rank restriction indication can be r R ..., r1, r0. Optionally, each bit indicates / corresponds to a rank. Optionally, each bit indicates / corresponds to a value of RI. Optionally, r0 can be the least significant bit (LSB), and r... R It can be the most significant bit (MSB). Here, the value of R can be one of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12. R One of r, ..., r1, r0 is r i Where i∈{0,1,…,R}. When r iWhen r is 0, PMI and / or RI reporting corresponding to any precoder associated with v = i+1 layers is not allowed. i When r is 1, PMI reporting and / or RI reporting corresponding to any precoding associated with v = i+1 layers is allowed. Here, v represents the value of the rank, or the number of layers. Optionally, when r i When r is 0, i The corresponding rank is not allowed. When r i When r is 1, i The corresponding rank is allowed.

[0179] Optionally, for the CSI reporting configuration, the UE determines and / or reports CSIs. Optionally, for the CSI reporting configuration, the UE determines and / or reports associated / corresponding CSIs. Optionally, the UE determines and / or reports CSIs related to / corresponding to the CSI reporting configuration. Optionally, the UE determines and / or reports CSIs where the CSI is associated with a resource(s) in the resource set(s) associated with the CSI reporting configuration. Optionally, the UE determines and / or reports CSIs associated with M resources. Optionally, the M resources are in the resource set used for channel measurement. Optionally, the M resources are M resources in the resource set used for channel measurement. Optionally, the M resources can refer to: reported resources. Optionally, M can refer to the number of reported resources. Optionally, the UE determines and / or reports CSIs associated with each of the M resources. Optionally, the above CSIs are reported in a single report instance. Optionally, M resource-related CSIs are reported in a single report instance.

[0180] In this document, "resource-related CSI" can be used interchangeably with the terms "resource-related CSI," "CRI-related CSI," or "CRI-related CSI." Optionally, a resource can be referred to as the CRI corresponding to that resource. For example, a resource-related CSI among M (reported) resources can be referred to as: a CRI-related CSI among the M (reported) CRIs. Optionally, a resource-related CSI can be: a CSI obtained / determined based on that resource. Optionally, a resource-related CSI can be: a CSI obtained / determined based on measurements of that resource. Optionally, a resource-related CSI can be: a CSI determined based on the CRI corresponding to that resource.

[0181] The characteristics of M are discussed below. Optionally, M ≥ 1, or M > 1; or M ≥ 2. Optionally, M ≤ K. Optionally, the value range of M can be from 1 to min(4, K). Optionally, the maximum value of M is determined based on UE capabilities. For example, the maximum value of M is indicated by UE capabilities. Optionally, the value of M is configured by RRC signaling. For example, the value of M is configured through CSI reporting. Optionally, the value of M can be indicated by MAC-CE and / or DCI.

[0182] The characteristics of the M resources are discussed below. Optionally, the M resources can come from K resources. Optionally, the M resources can be selected from the K resources. Optionally, the M resources can be M different resources. For example, the M resources can be M different resources from the K resources. For example, the M CRIs can be M different CRIs. For example, the CRIs corresponding to the M resources can be M different CRIs.

[0183] ●Optionally, M R (M R ≥0) resources can be indicated / configured (via base station). Optionally, M R Each resource can be configured through at least one of RRC, MAC-CE, and DCI. For example, M R Each resource can be configured via RRC and further activated / indicated by MAC-CE or DCI. For example, M R Individual resources can be indicated / configured via CSI reporting. Optionally, M R One resource comes from K resources. Optionally, M R A resource can be accessed via M R An index indicator. Optionally, M R One of the indexes can have a value of m. Optionally, m ≥ 0. Optionally, m indicates / corresponds to the (m+1)th resource in the resource set. Optionally, M R One resource can be an indication for non-periodic CSI reporting. Optionally, MR ≥0. Optionally, M R The value can be one of 0, 1, 2, 3, or 4.

[0184] ●When M R When a resource is configured / indicated, the UE (always) reports that M. R CSI related to a resource. When M R When a resource is configured / indicated, the M resources include the M... R One resource and MM R One resource. Optionally, the UE determines and / or reports M. R CSI and / or MM related to each resource R Each resource-related CSI. Optionally, the UE determines and / or reports M R For each resource, the associated CSI and / or MM R Each resource in the resource has a associated CSI. Optionally, MM R This resource comes from KM R One resource. Optional, MM R The resource is from KM R Selected from the resources. Optionally, KM R A resource refers to an M that is configured / indicated within a resource set. R KM outside of resources R One resource.

[0185] ●Optionally, when M R When M = 0, it can be assumed that the UE does not always report a specific resource from the K resources. Optionally, when M R When a resource is not configured / indicated, it can be considered that M R =0. Optionally, when M R When no resource is configured, the UE determines and / or reports the CSI associated with M resources. Optionally, these M resources are in the resource set used for channel measurements.

[0186] Optionally, CSI includes at least one of CRI, RI, PMI, CQI, and LI. Optionally, CSI includes CRI and / or CRI-associated / corresponding CSI. Optionally, one of the M resources / each resource-related CSI includes at least one of CRI, RI, PMI, CQI, and LI. Optionally, one of the M resources / each resource-related CSI includes CRI and / or CRI-associated / corresponding CSI. Optionally, CRI-associated / corresponding CSI includes at least one of RI, PMI, CQI, and LI.

[0187] Optionally, resource-related CSIs may include at least RIs. In this document, "CSIs may include at least RIs" can be used interchangeably with "The reporting quantity parameter corresponding to (or configured) the CSI reporting configuration may include at least 'RI'". Optionally, the reporting quantity parameter corresponding to (or configured) the CSI reporting configuration (e.g., reportQuantity) may include at least 'RI'. For example, the reporting quantity parameter corresponding to (or included, or configured, or indicated) the CSI reporting configuration (e.g., reportQuantity) may be set to at least one of 'cri-RI-PMI-CQI', 'cri-RI-LI-PMI-CQI', 'cri-RI-i1', 'cri-RI-i1-CQI', and 'cri-RI-CQI'. For example, the reporting quantity parameter (e.g., reportQuantity) included in the CSI reporting configuration can be set to at least one of 'cri-RI-PMI-CQI', 'cri-RI-LI-PMI-CQI', 'cri-RI-i1-CQI', and 'cri-RI-CQI'.

[0188] The following explains the relevant features of CRI in CSI.

[0189] Optionally, in M R There is no CRI in the CSI associated with each of the resources. Optionally, in M R The CRI is not included in the CSI associated with each resource in the resource. Optionally, in M R In the CSI associated with each resource within a resource, the size of the CRI field is 0. Optionally, the M reported by the UE... R M is not included in the CSI associated with each of the resources. R The CRI associated with each resource in the resource.

[0190] Optionally, in MM R Each resource in the resource has a CRI associated with its CSI. Optionally, in MM R The CSI associated with each resource in the resource set includes the CRI. Optionally, the CRI can be indicated via the CRI field. Optionally, MM R The size of the CRI domain associated with each resource is based on KM. R Certainly. Optionally, MM R The size of the CRI field associated with each resource in the resource is based on KM. R It is definite. For example, the size of the CRI field is equal to... Optionally, the value k of CRI (k≥0) can be used to indicate KM. ROne of the resources. Optionally, the value k of CRI can correspond to KM. R One of the resources. For example, the value k of CRI corresponds to / maps to KM. R The (k+1)th resource among the resources. For example, when KM R When CRI is greater than 1, the value k corresponds to / maps to KM. R The (k+1)th resource among the resources. For example, (when KM) R When >1, the value of CRI k corresponds to KM. R The (k+1)th resource is determined by ascending / descending order of the CSI-RS resource IDs among the resources. For example, (when KM R When >1, the value of CRI k corresponds to KM. R The (k+1)th resource is determined based on the configuration information of the resource set. For example, (when KM R When >1, the CRI value k corresponds to the KM in the NZP-CSI-RS-ResourceSet. R The (k+1)th item of each resource. The above method allows the base station to determine which resources the CSI is calculated based on, enabling the base station to use the corresponding resource-associated transmission parameters for scheduling, thus improving the accuracy of the communication system.

[0191] The following explains the relevant features of RI in CSI.

[0192] Optionally, the CSI may include RIs. Optionally, each resource-associated CSI among the M resources has an RI. Optionally, the RI may be indicated by an RI field. Optionally, the size of the RI field may be determined based on the allowed rank. Optionally, the size of the RI field may be based on the number of allowed RI values ​​(e.g., n). RI The size of the RI field is determined based on the number of allowed RI values ​​associated with the corresponding CSI-RS resource. Alternatively, when each of the K resources is configured with a rank limit, the size of the RI field is determined based on the number of allowed RI values ​​associated with the corresponding CSI-RS resource. Alternatively, the size of the RI field can be based on... Determined, where n RIThis refers to the number of allowed RI values. Optionally, the values ​​of the RI field are mapped to allowed RI values ​​in ascending / decreasing order, where '0' is mapped to the smallest allowed RI value. Optionally, the method for determining the allowed rank indicator is described above. For example, a resource-associated / corresponding rank limit parameter indicates allowed rank values ​​of 1, 3, 4, where RI = 0 represents rank 1, RI = 1 represents rank 3, and RI = 2 represents rank 4. The method for determining the RI field is based on one of the following tables. The size of the RI field can be determined based on one of Tables 1, 2, and 3. The contents of Tables 1, 2, and 3 are described below.

[0193] For CSI decoding, the base station needs to determine the size of the CSI before obtaining the specific content of the CSI indication. Since the UE determines which resources are reported, and since each resource can be configured with corresponding settings for CSI calculation / determination (e.g., rank limits, codebook configuration), the number of information bits associated with the corresponding CSI field may differ. The following method ensures that regardless of which resources the UE selects for reporting, the number of information bits corresponding to their CSIs is fixed. This avoids the base station attempting to decode based on the number of information bits corresponding to multiple possible CSIs, reducing the complexity of the base station and improving the performance of the communication system.

[0194] The CSI reported by the UE can include one or two parts. A CSI consisting of only one part can be called a single-part CSI. The two parts of a CSI can be referred to as CSI Part 1 and CSI Part 2, respectively. Optionally, if a CSI consists of only one part, the number of information bits in that CSI is fixed. Optionally, if a CSI consists of two parts, the number of information bits in CSI Part 1 is fixed. Optionally, CSI Part 1 has a fixed payload size and / or is used to identify the number of information bits in CSI Part 2.

[0195] The following discussion covers the case where CSI includes CSI Part 1 and / or CSI Part 2.

[0196] Optionally, the CSI associated with the M resources includes CSI Part 1. Optionally, the CSI associated with the M resources includes CSI Part 1 and CSI Part 2. CSI Part 1 includes RI fields. When the RI limit corresponding to each of the K resources is indicated, the size of the corresponding RI fields for different resources can be different. For the MM selected / reported by the UE... R One resource, when different MMs R One resource from KM R When selected from the resources, MM R The size of the RI field associated with each resource is different and cannot be known in advance by the base station. Therefore, the UE needs to pad the reported CSI with zeros so that the load size of CSI part 1 is consistent regardless of which MM. R The selected resources are fixed to ensure that the base station can correctly decode CSI.

[0197] The following describes method #1 for making CSI section 1 a fixed load. In the following description, MM... R The description of one resource can also be applied to M resources. In the following description, KM... R The description of one resource can also be applied to K resources. It can be assumed that when M... R =0 or M R When a resource is not configured, MM R One resource can be equivalent to M resources. It can be assumed that when M... R =0 or M R When a resource is not configured, KM R One resource can be equivalent to K resources.

[0198] Optionally, MM R One of the resources / each associated CSI portion 1 is zero-padded to a fixed load size. Optionally, when the first condition is met, MM R One of the resources / each associated CSI portion 1 is zero-padded to a fixed load size. Optionally, MM R The m-th (1≤m≤MM) resource R The CSI portion 1 associated with each resource is zero-padded to a fixed load size. Optionally, when the first condition is met, MM R The m-th (1≤m≤MM) resource R The CSI portion 1 associated with each resource is zero-padded to a fixed load size. Optionally, the first condition includes at least one of the following:

[0199] ●CSI includes CSI Part 1 and / or CSI Part 2. For example, MM R The CSI associated with each resource includes CSI Part 1 and / or CSI Part 2;

[0200] ●CSI refers to CSI Part 1. For example, MM R The CSI associated with each resource is CSI part 1;

[0201] ●The RI limit for each of the K resources is indicated / configured.

[0202] ● The number of ports for each of the K resources is greater than 1. For example, the number of ports for each of the K resources is greater than 1.

[0203] ●MM R >0;

[0204] ●CSI reporting is a non-periodic CSI reporting. For example, a CSI report used to report the association of M resources is a non-periodic CSI report.

[0205] Optionally, when the first condition is not met, MM R The m-th (1≤m≤MM) resource R The CSI portion 1 associated with each resource has no zero-padding bits. Optionally, when the first condition is not met, MM R The m-th (1≤m≤MM) resource R The number of zero-padding bits in the CSI part 1 associated with each resource is 0.

[0206] Optionally, MM R Individual resources (e.g., reported MM) R The CSI for one or each resource (of the resources) comprises P bits. Optionally, MM R The CSI of the m-th resource among the resources includes P m 1 bit. Optionally, P m All bits are 0. Optionally, P m All bits are 0. Optionally, P m Each bit is a zero-padded bit. Optionally, P m Each bit is consecutive.

[0207] Optionally, P m Based on KM R The allowed rank sum MM associated with each resource R The allowed rank associated with the m-th resource among the resources is determined. Optionally, P m It is based on KM RThe number of bits for the m-th resource association, determined by the allowed rank, is determined by the difference between the number of bits for the m-th resource association, determined by the allowed rank. In this paper, the number of bits determined by the allowed rank can be the number of bits in the RI field. Optionally, the number P of zero-padding bits in CSI section 1 of the m-th resource association... m (the number of zero padding bits, P m The first quantity is equal to the difference between the second and third quantities. The first quantity can be represented as N. max The second quantity can be represented as N. m Optionally, the first quantity may be indicated by the base station. For example, the first quantity may be indicated by at least one of RRC, MAC-CE, and DCI. For example, the first quantity may be indicated by CSI reporting configuration. Optionally, the first quantity may be based on KM. R The RI limit for each resource in the resource set is determined. Optionally, the first quantity is equal to that based on KM. R The KM is determined by the RI constraint for each resource in the resource. R The maximum value among the sizes of the RI fields. Optionally, the second quantity is determined based on the RI constraints corresponding to the m-th resource. Optionally, the second quantity is equal to the size of the RI field determined based on the RI constraints corresponding to the m-th resource. Here, the first quantity is, for example, N. max Here, the second quantity is, for example, N. m .

[0208] Optionally, P m Based on / equal to N max -N m Optionally, N max Based on KM R The allowed rank of each resource association is determined. Optionally, N max Based on KM R The number of allowed ranks associated with each resource is determined. Optionally, N max Based on (or equal to) KM R The maximum number of bits associated with each resource in the N resources is determined based on the allowed rank. Optionally, N max Based on (or equal to) KM R The number of bits associated with one resource in a set of resources, determined based on the allowed rank. Optionally, the resource refers to KM. R The resource with the most information bits among all resources. Optionally, Optionally, Q indicates that KM is included. R A collection of resources. Optionally, Q represents a set including KM. RThe set of CRIs corresponding to each resource. Optionally, Q represents {1,2,…,KM}. R A set of}. Optionally, N k Based on KM R The number of bits associated with the k-th resource among the resources is determined based on the allowed rank. Optionally, N k Based on KM R The size of the RI domain associated with the k-th resource among the resources is determined based on the allowed rank. Here, 1≤k≤KM R Optionally, N m Based on MM R The number of bits associated with the m-th resource in a set of resources is determined based on the allowed rank. Optionally, N m Based on MM R The size of the RI field associated with the m-th resource among the resources. Optionally, the bits can be CSI bits, or CSI information bits, or bits of the CSI field. Optionally, the number of bits can be the number of bits in the RI field. Optionally, N k It can be determined based on one of Table 1, Table 2, or Table 3. Optionally, N k Based on or equal to Where, n k This refers to the number of allowed RI values ​​corresponding to the k-th resource, or n k This refers to the number of allowed ranks corresponding to the k-th resource. Optionally, N m It can be determined based on one of Table 1, Table 2, or Table 3. Optionally, N m Based on or equal to Where, n m This refers to the number of allowed RI values ​​corresponding to the m-th resource, or n m It refers to the number of allowed ranks corresponding to the m-th resource.

[0209] Optionally, the RI field associated with the m-th resource can be equal to the first quantity. Optionally, MM R The RI field associated with each resource in a set of resources can be equal to the first quantity. Optionally, when MM R When the RI field associated with each resource in a set of resources is equal to a first quantity, zero-padding bits are placed in the RI field. For example, the RI field associated with the m-th resource includes P m 1 bit.

[0210] UE and base station need to predefine P m The location of each bit is such that the base station can correctly interpret the corresponding field after receiving the CSI. The following discusses zero-padding bits (e.g., P). mThe position of the zero-padding bits (the bits in the m-th resource association). Optionally, the zero-padding bits are added after the RI field of the m-th resource association, and / or, the zero-padding bits are added before the CQI field of the m-th resource association. Optionally, the zero-padding bits are added after the information bits corresponding to the RI field of the m-th resource association, and / or, the zero-padding bits are added before the information bits corresponding to the CQI field of the m-th resource association. Optionally, the zero-padding bits can be at the very end / beginning of the RI field of the m-th resource association.

[0211] The following describes method #2 for making CSI section 1 a fixed load. In the following description, MM... R The description of one resource can also be applied to M resources. In the following description, KM... R The description of one resource can also be applied to K resources. It can be assumed that when M... R =0 or M R When a resource is not configured, MM R One resource can be equivalent to M resources. It can be assumed that when M... R =0 or M R When a resource is not configured, KM R One resource can be equivalent to K resources.

[0212] Optionally, MM R The CSI portion 1 associated with each resource is zero-padded to a fixed load size. Optionally, when the first condition is met, MM R The CSI portion 1 associated with each resource is zero-padded to a fixed load size. Optionally, see above for a description of the first condition.

[0213] Optionally, MM R Individual resources (e.g., reported MM) R The CSI of a resource consists of P bits. Optionally, all P bits are 0. Optionally, all P bits are zero-padded bits. Optionally, the P bits are consecutive bits.

[0214] Optionally, P is based on KM R The allowed rank sum MM associated with each resource R The allowed rank of a resource association is determined. Optionally, P is based on KM. R The number of bits associated with each resource, determined by the allowed rank, and MM. RThe number of bits associated with a resource is determined by the difference in the allowed rank. Optionally, the number of bits can be the CSI number of bits. Optionally, the number of CSI bits can be the number of bits in the CSI field. Optionally, the CSI field includes at least one of the following: RI field, PMI field, CQI field, and LI field. Optionally, KM R The allowed rank of a resource association refers to: KM R The allowed rank associated with each resource in the MM. Optionally, MM R The allowed rank of a resource association refers to: MM R The allowed rank associated with each resource in the MM. R The number of zero-padding bits in CSI section 1 associated with a resource is equal to the difference between the fifth and sixth numbers. Optionally, the fifth number is based on KM. R The RI constraint is determined for each resource in the resource set. Optionally, the sixth quantity is based on MM. R The RI limit corresponding to each resource is determined. Optionally, the fifth quantity can be indicated by the base station. For example, the fifth quantity can be indicated by at least one of RRC, MAC-CE, and DCI. For example, the fifth quantity can be indicated by CSI reporting configuration. Optionally, the fifth quantity is equal to that based on KM. R The KM is determined by the RI constraint for each resource. R The size of each RI field in MM R The sum of the sizes of the RI fields. Optionally, MM R The size of an RI field refers to KM R The largest MM among the sizes of the RI fields R The size of each RI field. Optionally, the sixth quantity is equal to the size based on MM. R The MM is determined by the RI constraint for each resource in the resource set. R The sum of the sizes of the RI fields. Here, the fifth quantity is, for example, N. max，part1，total Here, the sixth quantity is, for example, N′.

[0215] Optionally, P is based on (or equal to) N. max，part1，total -N′. Optionally, N max，part1，total It can be KM R The maximum number of bits associated with each resource. Optionally, N max，part1，total It can be KM R MM in each resource R The maximum number of bits associated with a resource. N′ can be KM. R MM in each resource R The sum of the number of bits associated with each resource. Optionally, MM RThe resources are those that have been reported.

[0216] ●Optionally, N max，part1，total Based on KM R The allowed rank of each resource association is determined. Optionally, N max，part1，total Based on (or equal to) KM R The value of the number of bits associated with each resource in the resource, determined based on the allowed rank (e.g., KM). R MM (values) R The sum of the largest values. Optionally, N max，part1，total Based on (or equal to) KM R MM in each resource R The sum of the number of bits associated with each resource in the MM, determined based on the allowed rank. Optionally, MM R The resource refers to KM R The MM with the most information bits in a resource R One resource. Optional, MM R A resource refers to KM that maximizes the sum of the values ​​of the number of bits. R MM in each resource R One resource. Optional, Where S represents the inclusion of KM R A set of resources. Optionally, S′ represents a set including MM. R A collection of resources. Optionally, Optionally, N s MM R The number of bits associated with the s-th resource among N resources, determined based on the allowed rank. Optionally, N s MM R The size of the RI domain associated with the s-th resource among the _ ... R Here, MM R Each resource refers to MM in S′. R One resource. Optionally, the method for determining the number of information bits used to indicate the RI based on the allowed rank is described above. Optionally, the method for determining the size of the corresponding RI field based on the allowed rank is described above.

[0217] ●Optional, Optionally, N m MM R The number of bits associated with the m-th resource among N resources, determined based on the allowed rank. Optionally, N m MM R The size of the RI domain associated with the m-th resource among the resources, determined based on the allowed rank. Here, 1 ≤ m ≤ MM.R Optionally, MM R Each resource refers to the reported MM. R One resource. Optional, MM R Each resource refers to the MM that the corresponding CSI is reported to. R One resource. Optionally, N m MM R The number of bits associated with the m-th resource among N resources, determined based on the allowed rank. Optionally, N m MM R The size of the RI field associated with the m-th resource among the resources, determined based on the allowed rank. Optionally, the method for determining the number of information bits used to indicate the RI based on the allowed rank is described above. Optionally, the method for determining the size of the corresponding RI field based on the allowed rank is described above.

[0218] UE and base station need to predefine P m The location of each bit is determined so that the base station can correctly interpret the corresponding field after receiving the CSI. The location of the zero-padding bits (e.g., P bits) is discussed below. Optionally, the zero-padding bits are added after the Mth resource-associated CSI, and / or, before the Mth resource-associated CSI. Optionally, the zero-padding bits are added after CSI section 1. Optionally, the zero-padding bits are added before CSI section 1. Optionally, the zero-padding bits are added at the end of CSI section 1. Optionally, the zero-padding bits are added at the beginning of CSI section 1.

[0219] The following discussion covers the case where CSI includes one part (or only one part).

[0220] Optionally, the CSI associated with M resources includes one CSI portion. Optionally, the CSI associated with M resources includes only one CSI portion. Optionally, the CSI payload carried by the PUCCH is the same. Optionally, the CSI payload carried by the PUCCH is the same regardless of the RI and / or CRI.

[0221] Optionally, the CSI may include a CSI field (e.g., at least one of the RI field, PMI field, CQI field, and LI field). Optionally, when the RI limit corresponding to each of the K resources is indicated, the size of the RI field corresponding to different resources may be different. Additionally, when the RI limit corresponding to each of the K resources is indicated, the allowed rank value used to determine the size of the corresponding CSI field for different resources may be different. For the MM selected / reported by the UE... R One resource, when different MMs R One resource from KM R When selected from the resources, MM R The size of the RI field associated with each resource is different and cannot be known in advance by the base station. Therefore, the UE needs to pad the reported CSI with zeros to ensure that the CSI load is consistent regardless of the MM. R The selected resources are fixed to ensure that the base station can correctly decode CSI.

[0222] The following describes method #1 for making CSI a fixed load. The descriptions of the M resources in the following description also apply to MM. R K resources. The descriptions of K resources below can also be applied to KM. R One resource. It can be assumed that when M... R =0 or M R When a resource is not configured, MM R One resource can be equivalent to M resources. It can be assumed that when M... R =0 or M R When a resource is not configured, KM R One resource can be equivalent to K resources.

[0223] Optionally, the CSI associated with one or each of the M resources is zero-padded to a fixed load size. Optionally, when the second condition is met, the CSI associated with one or each of the M resources is zero-padded to a fixed load size. Optionally, the CSI associated with the m-th (1≤m≤M) resource among the M resources is zero-padded to a fixed load size. Optionally, when the second condition is met, the CSI associated with the m-th (1≤m≤M) resource among the M resources is zero-padded to a fixed load size. Optionally, the CSI associated with the m-th (1≤m≤M) resource among the M resources includes zero-padded bits. Optionally, when the second condition is met, the CSI associated with the m-th (1≤m≤M) resource among the M resources includes zero-padded bits. Optionally, the second condition includes at least one of the following:

[0224] ●K RI limits are configured;

[0225] ●M R One resource has not been configured. For example, M R One resource was not configured for reporting;

[0226] ● The reported CSI only includes one part;

[0227] ● The CSI associated with M resources is the broadband CSI. For example, the CSI associated with M resources is the broadband granularity;

[0228] ● The number of ports for each of the K resources is greater than 1. For example, the number of ports for each of the K resources is greater than 1.

[0229] ● The CSI associated with M resources is carried by PUCCH.

[0230] Optionally, the CSI associated with one or each of the M resources (e.g., the M reported resources) comprises P bits. Optionally, the CSI of the m-th resource among the M resources comprises P bits. m 1 bit. Here, 1 ≤ m ≤ M. Optionally, P m All bits are 0. Optionally, P m Each bit is a zero-padded bit. P m Each bit is a consecutive bit. Optionally, P m It is determined based on the third and fourth quantities. Optionally, P m Equal to the third quantity (N) max,single ) and the fourth quantity (N) reported,m The difference between P and P. Optionally, P... m =N max,single -N reported,m .

[0231] ● Optionally, the third quantity is determined based on the number of bits associated with each of the K resources. Optionally, the third quantity is determined based on the size of the CSI field associated with each of the K resources. Optionally, the third quantity is based on KN RThe largest number of bits associated with each resource in the K resources. Optionally, the third number is equal to the largest size of the CSI field associated with each resource in the K resources. Optionally, the third number is based on the number of bits associated with one resource in the K resources, where the number of bits associated with that resource is the largest number of bits associated with each resource in the K resources. Here, bits can be CSI information bits. Optionally, the size of the CSI field associated with the k-th (1≤k≤K) resource in the K resources is determined based on the size of the RI field determined based on the RI restrictions corresponding to the k-th resource. Optionally, the size of the CSI field associated with the k-th resource is equal to the sum of the size of the RI field determined based on the RI restrictions corresponding to the k-th resource and the size of the CSI field determined based on the value of the allowed reporting rank indicated by the RI restrictions corresponding to the k-th resource. Optionally, the size of the CSI field is equal to the maximum size of the CSI fields determined by the rank of each allowed rankindicated by the RI restriction for the k-th resource. Optionally, the CSI field includes at least one of the following: a PMI field, a CQI field, and a LI field.

[0232] ● Optionally, the fourth quantity is the number of bits associated with the m-th resource. Optionally, the fourth quantity is determined based on the size of the CSI field associated with the m-th resource. Optionally, the fourth quantity is the number of bits reported associated with the m-th resource. Optionally, the fourth quantity is based on at least one of the following: the size of the RI field corresponding to the m-th resource, and the number of bits determined based on the rank of the reported information associated with the m-th resource. Optionally, the fourth quantity is based on at least one of the following: the size of the RI field corresponding to the m-th resource, and the size of the CSI field determined based on the rank of the reported information associated with the m-th resource. Optionally, the size of the CSI field corresponding to the m-th resource is equal to the sum of the size of the RI field determined based on the RI limit corresponding to the m-th resource and the size of the CSI field determined based on the rank of the reported information associated with the m-th resource. Here, bits can be CSI information bits. Optionally, the CSI field includes at least one of the following: PMI field, CQI field, and LI field.

[0233] Optionally, the CSI information bits include at least one of the following: information bits in the RI field, information bits in the PMI field, information bits in the CQI field, and information bits in the LI field. Optionally, the number of CSI information bits is equal to / based on the sum of: the number of bits in the RI field, the number of bits in the PMI field, the number of bits in the CQI field, and the number of bits in the LI field. Optionally, the CSI field includes at least one of the PMI field, CQI field, and LI field. Here, C(k) represents the number of CSI information bits corresponding to / associated with resource #k. Here, resource #k can be understood as the resource corresponding to the CRI value k. Optionally, CRI k corresponds to resource #k+1. Optionally, C(k) = N RI (k). Optionally, C(k) = N RI (k)+B(r k Here, N RI (k) represents the number of bits in the RI field corresponding to / associated with resource #k. Here, B(r k ) represents the rank r corresponding to / associated with resource #k. k The number of CSI information bits determined. Optionally, r k It can be the rank value corresponding to resource #k. Optionally, B(r k N can be equal to the sum of at least one of the following: PMI (r k ), N CQI (r k ), N LI (r k Optionally, B(r) k ) = N PMI (r k )+N CQI (r k )+N LI (r k The meaning and determination method of the above parameters are described below.

[0234] Optionally, N RI (k) refers to the number of bits determined based on the rank corresponding to resource #k. Optionally, N RI (k) refers to the number of bits determined based on the number of allowed rank corresponding to resource #k. Optionally, N RI (k) can be determined based on Table 1, Table 2, or Table 3. Optionally, Where, n k This represents the number of allowed RI values ​​corresponding to resource #k, or n. k This refers to the number of allowed ranks corresponding to resource #k.

[0235] Optionally, N PMI (r k) represents the number of bits in the PMI field corresponding to / associated with resource #k. Optionally, N PMI (r k () refers to the RI value r based on resource #k. k A defined number of bits. Optionally, when the PMI is reported and / or the number of CSI-RS ports is 2, N PMI (1) = 2. Optionally, when the PMI is reported and / or the number of CSI-RS ports is 2, N PMI (2) = 1. Optionally, when PMI is not reported and / or the number of CSI-RS ports is 2, N PMI (2) = 0. Optionally, N PMI (r k ) = N PMI,i1 (r k )+N PMI,i2 (r k ). Optionally, N PMI,i1 (r k The ) represents the number of bits associated with i1 corresponding to resource #k. Optionally, i1 is included in the PMI. Optionally, N PMI,i2 (r k ) represents the number of bits associated with i2 corresponding to resource #k. Optionally, i2 is included in the PMI. Optionally, when PMI i1 is reported, N PMI,i1 (r k The rank can be determined based on Table 4 or Table 5. Optionally, in Table 4 or Table 5, the rank refers to the rank / associated rank of resource #k (e.g., r). k Optionally, when PMI i2 is reported, N PMI,i2 (r k The rank can be determined based on Table 4 or Table 5. Optionally, in Table 4 or Table 5, the rank refers to the rank / associated rank of resource #k (e.g., r). k Optionally, when PMI i1 is not reported, N PMI,i1 (r k ) = 0. Optionally, when PMI i2 is not reported, N PMI,i2 (r k ) = 0.

[0236] Optionally, N CQI (r k ) represents the number of bits in the CQI field corresponding to / associated with resource #k. Optionally, N CQI (r k () refers to the RI value r based on resource #k. k A defined number of bits. Optionally, N CQI (r kThe rank can be determined based on Table 1, Table 2, or Table 3. Optionally, in Table 1, Table 2, or Table 3, the rank refers to the rank / associated rank of resource #k (e.g., r). k Optionally, when CQI is reported, N CQI (r k Determined based on Table 1, Table 2, or Table 3. Optionally, N CQI (r k ) = 0. Optionally, when CQI is not reported, N CQI (r k ) = 0.

[0237] Optionally, N LI (r k ) represents the number of bits in the LI field corresponding to / associated with resource #k. Optionally, N LI (r k () refers to the RI value r based on resource #k. k The number of bits is determined. Optionally, N LI (r k The value can be determined based on Table 1, Table 2, or Table 3. Optionally, in Table 1, Table 2, or Table 3, v refers to the rank (e.g., r) corresponding to / associated with resource #k. k Optionally, when LI is reported, N LI (r k Determined based on Table 1, Table 2, or Table 3. Optionally, N LI (r k ) = 0. Optionally, when LI is not reported, N LI (r k ) = 0.

[0238] Optionally, the third quantity refers to the largest quantity among the number of bits corresponding to the K resources. Optionally, Q represents a set including K resources, where k corresponds to resource #k. Optionally, Q represents a set including K resources, where k corresponds to the k-th resource among the K resources. Optionally, Q represents a set including the CRIs corresponding to K resources, where k corresponds to the CRI value of resource #k. Optionally, Q represents a set including the CRIs corresponding to K resources, where k corresponds to the CRI corresponding to the k-th resource among the K resources. Optionally, Here, S rank,k It refers to the set of rank values ​​(S) of the k-th resource that are allowed to be reported. rank,k is a set of rank values kfor the k-th resource that are allowed to be reported).

[0239] Optionally, the fourth quantity N reported,m =C(m). Optionally, N reported,m =N RI (m)+B(R m ), where R m This refers to the reported rank for the m-th resource.

[0240] Optionally, P determined by the above method / operation m The bits are in the RI field of the m-th resource. Optionally, P is determined by the above method / operation. m The bits follow at least one of the CRI, RI, and LI fields of the m-th resource. Optionally, if LI is not reported, then P is determined by the above method / operation. m The bits follow the RI field of the m-th resource. Optionally, if LI is reported, then P is determined by the above method / operation. m The bits follow the LI field of the m-th resource. Optionally, P is determined by the above method / operation. m The bits precede the PMI field of the m-th resource. Optionally, the P determined by the above method / operation m The bits are the last / first of the RI field in the m-th resource. Optionally, P is determined by the above method / operation. m The bits are the last / first P of the RI field of the m-th resource. m This method allows the base station to determine the position of the zero-padding bits, thereby determining the position of other information bits for decoding, avoiding the use of incorrect information, and improving the reliability of the communication system.

[0241] The following describes method #2 for making CSI a fixed load. The descriptions of the M resources in the following description also apply to MM. R K resources. The descriptions of K resources below can also be applied to KM. R One resource. It can be assumed that when M... R =0 or M R When a resource is not configured, MM R One resource can be equivalent to M resources.

[0242] Optionally, the CSIs associated with the M resources are zero-padded to a fixed load size. Optionally, when the second condition is met, the CSIs associated with the M resources are zero-padded to a fixed load size. Optionally, the CSIs associated with the M resources include zero-padded bits. Optionally, when the second condition is met, the CSIs associated with the M resources include zero-padded bits. Optionally, the second condition is as described above.

[0243] Optionally, the CSI of M resources (e.g., the M reported resources) includes P bits. Optionally, all P bits are 0. Optionally, all P bits are 0. Optionally, the P bits are zero-padded bits. Optionally, P is determined based on the seventh and eighth quantities. Optionally, P equals the seventh quantity (N). max,single,joint ) and the eighth quantity (N) reported The difference between P and N. Optionally, P = N. max,single,joint -N reported .

[0244] ● Optionally, the seventh number is determined based on the number of bits associated with each of the K resources. Optionally, the seventh number is determined based on the sizes of the M CSI fields associated with each of the K resources. Optionally, the seventh number is based on the sum of the M largest values ​​of the number of bits associated with each of the K resources. Optionally, the seventh number is equal to the maximum sum of the sizes of the M CSI fields associated with each of the K resources. Optionally, the seventh number is equal to the maximum sum of any M CSI fields associated with each of the K resources. Optionally, the seventh number is based on the sum of the M values ​​of the number of bits associated with each of the K resources such that the sum of the M values ​​is the maximum. Optionally, the seventh quantity is based on the sum of the number of bits associated with M resources out of the K resources, where the value of the number of bits associated with the M resources is the largest of the M values ​​of the number of bits associated with each resource out of the K resources. Optionally, the seventh quantity is determined based on (or equal to) the sum of the sizes of the M CSI fields associated with each resource out of the K resources. Here, the bit can be a CSI information bit. Optionally, the size of the CSI field associated with the k-th (1≤k≤K) resource out of the K resources is determined based on the size of the RI field determined based on the RI restrictions corresponding to the k-th resource. Optionally, the size of the CSI field associated with the k-th resource is equal to the sum of the size of the RI field determined based on the RI restrictions corresponding to the k-th resource and the size of the CSI field determined based on the value of the allowed reporting rank indicated by the RI restrictions corresponding to the k-th resource. Optionally, the size of the CSI field is equal to the maximum size of the CSI field determined based on the value of each allowed reporting rank indicated by the RI restrictions corresponding to the k-th resource. Optionally, the CSI domain includes at least one of the PMI domain, CQI domain, and LI domain.

[0245] ● Optionally, the eighth quantity is the number of bits associated with the M resources. Optionally, the eighth quantity is the number of reported bits associated with the M resources. Optionally, the eighth quantity is the sum of the number of bits associated with the M resources. Optionally, the eighth quantity is the sum of the number of reported bits associated with each of the M resources. Here, bits can be CSI information bits. Optionally, the eighth quantity is determined based on the size of the CSI fields corresponding to the M resources. Optionally, the eighth quantity is equal to the sum of the sizes of the CSI fields corresponding to the M resources. Optionally, the size of the CSI field corresponding to the m-th (1≤m≤M) resource among the M resources is equal to the sum of the size of the RI field determined based on the RI constraints corresponding to the m-th resource and the size of the CSI field determined based on the reported rank corresponding to the m-th resource.

[0246] Optionally, the CSI information bits include at least one of the following: information bits in the RI field, information bits in the PMI field, information bits in the CQI field, and information bits in the LI field. Optionally, the number of CSI information bits is equal to / based on the sum of: the number of bits in the RI field, the number of bits in the PMI field, the number of bits in the CQI field, and the number of bits in the LI field. Optionally, the CSI field includes at least one of the PMI field, CQI field, and LI field. Here, C(k) represents the number of CSI information bits corresponding to / associated with resource #k. Here, resource #k can be understood as the resource corresponding to the CRI value k. Optionally, CRI k corresponds to resource #k+1. Optionally, C(k) = N RI (k). Optionally, C(k) = N RI (k)+B(r k Here, N RI (k) represents the number of bits in the RI field corresponding to / associated with resource #k. Here, B(r k ) represents the rank r corresponding to / associated with resource #k. k The number of CSI information bits determined. Optionally, r k It can be the rank value corresponding to resource #k. Optionally, B(r k N can be equal to the sum of at least one of the following: PMI (r k ), N CQI (r k ), N LI (r k Optionally, B(r) k ) = N PMI (r k )+N CQI (r k )+N LI (r k See above for a description of each parameter.

[0247] Optionally, the seventh quantity refers to the sum of the M largest quantities among the bit quantities corresponding to the K resources. Optionally, the seventh quantity... Optionally, Q represents a set containing K resources, and T represents a set containing M resources. Optionally, Q represents a set containing CRIs corresponding to K resources, and T represents a set containing CRIs corresponding to M resources. Optionally, Optionally, j refers to the j-th resource in set T. Optionally, j refers to the j-th CRI in set T. Optionally, 1 ≤ j ≤ M. Here, C(j) can refer to the number of bits corresponding to resource j. Here, C(j) can refer to the number of bits corresponding to the j-th resource. Here, C(j) can refer to the size of the associated CSI field corresponding to resource j. Optionally, Here, S rank,j It refers to the set of rank values ​​(S) of the j-th resource that are allowed to be reported. rank,j is a set of rank values ​​r j for the j-th resource that are allowed to be reported).

[0248] Optionally, the eighth quantity Optionally, c(i) = N RI (i)+B(R i ), where R i This refers to the reported rank for the i-th resource. Here, the i-th resource refers to the i-th resource among M resources. Optionally, 1 ≤ i ≤ M.

[0249] Optionally, the P bits determined by the above method / operation are before / after the CSI of the M resources. Optionally, the P bits determined by the above method / operation are at the end / beginning of the CSI of the M resources. Optionally, the P bits determined by the above method / operation are the last / beginning P bits of the CSI of the M resources. This method allows the base station to determine the position of the P bits, thereby determining the position of other information bits for decoding, avoiding the use of incorrect information, and improving the reliability of the communication system.

[0250] Optionally, the size of the CSI fields included in the CSI can be determined based on one of the following tables.

[0251] Table 1

[0252]

[0253] Optionally, the number of bits for RI / LI / CQI / CRI is determined by Table 1 if the parameter codebookType = typeI-SinglePanel, or the reporting quantity parameter reportQuantity is set to 'cri-RI-CQI', or there is a CSI-RS port.

[0254] Optionally, in Table 1, K j This represents the quantity of one or more resources in the resource set. In Table 1, n RI This indicates the number of allowed RI values. ν refers to the rank value. The values ​​in the RI field are mapped to allowed rank indicator values ​​in ascending order, where '0' is mapped to the smallest allowed RI value. For higher-level parameter reportQuantity set to 'cri-RI-CQI', the values ​​in the RI field are mapped to allowed rank indicator values ​​in ascending order, where '0' is mapped to rank-1.

[0255] Table 2

[0256]

[0257] Optionally, provided that the parameter codebookType = typeI-MultiPanel is satisfied, the number of bits for RI / LI / CQI / CRI is determined by Table 2.

[0258] Optionally, in Table 2, K j This represents the quantity of one or more resources in the resource set. In Table 2, n RIThis indicates the number of allowed RI values. v refers to the rank value. The values ​​in the RI field are mapped to allowed rank indicator values ​​in ascending order. For example, '0' is mapped to the smallest allowed RI value.

[0259] Table 3

[0260]

[0261] Optionally, the number of bits in RI can be determined by Table 3, provided that the parameter codebookType = typeII-r16 or typeII-PortSelection-r16 or typeII-PortSelection is satisfied. In Table 3, n RI This indicates the number of allowed RI values.

[0262] Table 4

[0263]

[0264]

[0265] Optionally, when the number of ports (number of CSI-RS ports) equals 1, the bit width of the PMI is 0. When the number of ports (number of CSI-RS ports) equals 2, the rank is 1, and the parameter codebookType = typeI - SinglePanel is satisfied, the bit width of the PMI is 2. Optionally, the rank here refers to the rank included / reported in the CSI. When the number of ports (number of CSI-RS ports) equals 2, the rank is 2, and the parameter codebookType = typeI - SinglePanel is satisfied, the bit width of the PMI is 1. Optionally, the rank here refers to the rank included / reported in the CSI. When the number of ports (number of CSI-RS ports) is greater than 2, and the parameter codebookType = typeI - SinglePanel is satisfied, the bit width of the PMI can be determined by Table 4.

[0266] Table 5

[0267]

[0268]

[0269] Optionally, the number of bits in the PMI is 0 when the number of ports (the number of CSI-RS ports) equals 1. The number of bits in the PMI can be determined from Table 5 when the parameter codebookType = typeI - MultiPanel is satisfied.

[0270] Figure 5 A method 500 performed by a base station according to various embodiments of the present disclosure is illustrated. Method 510 includes: at 510, the base station sends a CSI reporting configuration to the UE, wherein the CSI reporting configuration indicates a resource set for channel measurement including K resources, K>1; at 520, 1) when M of the K resources... R When a resource is configured for reporting, the base station receives the M based on the CSI reporting configuration from the UE. R CSI and MM associated with each resource R A resource-associated CSI (or, the base station receives a CSI from the UE, which includes M) R CSI and MM associated with each resource R (CSI associated with each resource), M R ≥0, where M and M R The resource is a configuration instruction reported by CSI, where 1 < M ≤ K, and M < M. R One resource comes from M of K resources. R KM outside of resources R K resources, wherein the received CSI includes CSI Part 1 and CSI Part 2 and the CSI reporting configuration indicates that each of the K resources corresponds to an RI limit: MM R The m-th (1≤m≤MM) resource R The CSI portion 1 associated with each resource is zero-padded to a fixed load size, or MM. R The CSI portion 1 associated with each resource is zero-padded to a fixed load size; or, 2)(when M RWhen no resource is configured for reporting, the base station receives from the UE a CSI associated with M resources based on the CSI reporting configuration (or the base station receives a CSI from the UE, which includes CSIs associated with M resources), where M is indicated by the CSI reporting configuration, 1 < M ≤ K, and the M resources come from K resources. Where the M resource-associated CSIs are carried by the PUCCH and are of wideband frequency domain granularity, and the CSI reporting configuration indicates that each of the K resources corresponds to an RI constraint: i) the CSI associated with the m-th (1 ≤ m ≤ M) resource among the M resources includes zero-padding bits, wherein the number of zero-padding bits... The quantity is determined based on the difference between the third quantity and the fourth quantity, wherein the third quantity is determined based on the size of the CSI field associated with each of the K resources, which is determined based on the corresponding RI constraint, and the fourth quantity is determined based on the size of the CSI field associated with the m-th resource; or, ii) the CSI associated with the M resources includes zero-padding bits, wherein the number of zero-padding bits is determined based on the difference between the seventh quantity and the eighth quantity, wherein the seventh quantity is determined based on the sum of the sizes of the M CSI fields associated with each of the K resources, and the eighth quantity is determined based on the sum of the sizes of the CSI fields corresponding to the M resources.

[0271] Figure 6 The structure 600 of a user equipment according to various embodiments of the present disclosure is shown. For example... Figure 6 As shown, user equipment 600 includes a controller 610 and a transceiver 620, wherein the controller 610 is configured to perform the various methods disclosed herein performed by the user equipment, and the transceiver 620 is configured to transmit and receive channels or signals.

[0272] Figure 7 The structure 700 of a base station according to various embodiments of the present disclosure is shown. For example... Figure 7 As shown, network device 700 includes a controller 710 and a transceiver 720, wherein the controller 710 is configured to perform various methods performed by network devices as disclosed herein, and the transceiver 720 is configured to transmit and receive channels or signals.

[0273] Furthermore, “at least one / at least one” as described in this disclosure includes any and / or all possible combinations of the listed items, the various embodiments described in this disclosure and the various examples in the embodiments can be changed and combined in any suitable form, and “ / ” as described in this disclosure means “or”.

[0274] The various illustrative logic blocks, modules, and circuits described in this disclosure may be implemented or performed using 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. The general-purpose processor may be a microprocessor, but in alternative embodiments, 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, multiple microprocessors, one or more microprocessors cooperating with a DSP core, or any other such configuration.

[0275] The steps of the methods or algorithms described in this disclosure may be embodied directly in hardware, in a software module executed by a processor, or in a combination of both. The software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, 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 to / from the storage medium. In an alternative, the storage medium may be integrated into the processor. The processor and storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In an alternative, the processor and storage medium may reside as discrete components in the user terminal.

[0276] In one or more exemplary designs, the functionality may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functionality may be stored or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media, the latter including any medium that facilitates the transfer of a computer program from one location to another. Storage media may be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0277] The description set forth herein, taken in conjunction with the accompanying drawings, describes exemplary configurations, methods, and apparatuses, and does not represent all examples that can be implemented or that fall within the scope of the claims. As used herein, the term "example" means "serving as an example, instance, or illustration," and not "preferred" or "superior to other examples." The detailed description includes specific details intended to provide an understanding of the described techniques. However, these techniques can be practiced without these specific details. In some cases, well-known structures and devices are shown in block diagram form to avoid obscuring the concept of the described examples.

[0278] Although this specification contains details of various specific implementations, these should not be construed as limiting any invention or the scope of the claims, but rather as descriptions of specific features of particular embodiments of a particular invention. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually in multiple embodiments or in any suitable sub-combination. Furthermore, although features may be described above as functioning in certain combinations, and even initially claimed as such, in some cases one or more features from a claimed combination may be removed from that combination, and the claimed combination may be for sub-combinations or variations thereof.

[0279] It should be understood that the specific order or hierarchy of steps in the methods of this 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 this disclosure. The appended method claims present the elements of various steps in an exemplary order and are not intended to limit one to the specific order or hierarchy presented, unless otherwise specifically stated. Furthermore, although elements may be described or claimed in the singular, the plural is also contemplated unless a limitation on the singular is expressly stated. Therefore, this disclosure is not limited to the examples shown, and any means for performing the functions described herein are included in various aspects of this disclosure.

[0280] The text and accompanying drawings are provided by way of example only to aid the reader in understanding this disclosure. They are not intended and should not be construed as limiting the scope of this disclosure in any way. Although certain embodiments and examples have been provided, it will be apparent to those skilled in the art, based on the content disclosed herein, that changes may be made to the illustrated embodiments and examples without departing from the scope of this disclosure.

Claims

1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising: Receive Channel State Information (CSI) reporting configuration, wherein the CSI reporting configuration indicates a resource set for channel measurement of K resources, where K>1; Report M of the K resources R CSI and MM associated with each resource R CSI associated with each resource, M R ≥0, Wherein, M and M R The resource is the configuration indicated by the CSI report, and the MM R The resources are derived from the K resources excluding M. R Resources other than those resources Wherein, the reported CSI includes CSI Part 1 and CSI Part 2, and the CSI reporting configuration indicates that each of the K resources corresponds to the rank indicator RI limit, the MM R The CSI portion 1 associated with the m-th resource in the 1 resource is zero-padded to a fixed payload size by zero-padding bits, 1 ≤ m ≤ M M. R .

2. The method according to claim 1, wherein, The number of zero-padding bits in CSI part 1 associated with the m-th resource is the difference between the first number and the second number. Wherein, the first quantity is based on the KM R The RI limit for each of the resources is determined, and the second quantity is determined based on the RI limit for the m-th resource.

3. The method according to claim 2, wherein, The first quantity is based on the KM R The KM is determined by the RI constraint for each resource in the resource. R The maximum value among the sizes of the RI fields. Wherein, the second quantity is the size of the RI domain determined based on the RI constraint corresponding to the m-th resource.

4. The method according to any one of claims 1-3, wherein, The zero-padding bit is added after the RI field of the m-th resource association, and / or the zero-padding bit is added before the Channel Quality Indicator (CQI) field of the m-th resource association.

5. A method performed by a user equipment (UE) in a wireless communication system, the method comprising: Receive Channel State Information (CSI) reporting configuration, wherein the CSI reporting configuration indicates a resource set for channel measurement of K resources, where K>1; Report the CSI associated with M of the K resources, where M is the CSI reporting configuration indication, 1 < M ≤ K. Wherein, if the CSI is carried by the Physical Uplink Control Channel (PUCCH) and is of wideband frequency domain granularity, and the CSI reporting configuration indicates that each of the K resources corresponds to a rank indicator (RI) constraint, the CSI associated with the m-th resource among the M resources includes zero-padding bits, 1 ≤ m ≤ M, wherein the number of zero-padding bits is determined based on the difference between a third number and a fourth number. The third quantity is determined based on the size of the CSI field associated with each of the K resources, which is determined based on the corresponding RI constraint, and the fourth quantity is determined based on the size of the CSI field associated with the m-th resource.

6. The method according to claim 5, wherein, The third quantity is the maximum value among the sizes of the CSI fields associated with each of the K resources.

7. The method according to claim 6, wherein, The size of the CSI field associated with the kth resource among the K resources is determined based on the size of the RI field determined according to the RI constraint corresponding to the kth resource, where 1≤k≤K.

8. The method according to claim 7, wherein, The size of the CSI field associated with the k-th resource is the sum of the size of the RI field determined based on the RI restrictions corresponding to the k-th resource and the size of the CSI field determined based on the value of the allowed reporting rank indicated by the RI restrictions corresponding to the k-th resource.

9. The method according to claim 8, wherein, The size of the CSI field, determined based on the value of the allowed reporting rank of the RI restriction indication corresponding to the k-th resource, is the maximum size of the CSI field determined based on the value of each allowed reporting rank of the RI restriction indication corresponding to the k-th resource.

10. The method according to claim 5, wherein, The size of the CSI field corresponding to the m-th resource is the sum of the size of the RI field determined based on the RI constraint corresponding to the m-th resource and the size of the CSI field determined based on the reported rank corresponding to the m-th resource.

11. The method according to any one of claims 5-10, wherein, The zero-padding bit is added after the layer indicator LI field of the m-th resource association, and / or the zero-padding bit is added before the precoding matrix indicator PMI field of the m-th resource association.

12. The method according to any one of claims 5-11, wherein, The CSI domain includes at least one of the RI domain, PMI domain, CQI domain, and LI domain.

13. A method performed by a user equipment (UE) in a wireless communication system, the method comprising: Receive Channel State Information (CSI) reporting configuration, wherein the CSI reporting configuration indicates a resource set for channel measurement of K resources, where K>1; Report M of the K resources R CSI and MM associated with each resource R CSI associated with each resource, M R ≥0, Wherein, M and M R The resource is the configuration indicated by the CSI report, and the MM R The resources are derived from the K resources excluding M. R Resources other than those resources Wherein, the reported CSI includes CSI Part 1 and CSI Part 2, and the CSI reporting configuration indicates that each of the K resources corresponds to the rank indicator RI limit, the MM R The resource-associated CSI part 1 is zero-padded to a fixed payload size by zero-padding bits.

14. A method performed by a user equipment (UE) in a wireless communication system, the method comprising: Receive Channel State Information (CSI) reporting configuration, wherein the CSI reporting configuration indicates a resource set for channel measurement of K resources, where K>1; Report the CSI associated with M of the K resources, where M is the CSI reporting configuration indication, 1 < M ≤ K. Wherein, the CSIs associated with the M resources are carried by the Physical Uplink Control Channel (PUCCH) and are of wideband frequency domain granularity, and the CSI reporting configuration indicates that each of the K resources corresponds to a rank indicator (RI) constraint, the CSIs associated with the M resources include zero-padding bits, wherein the number of zero-padding bits is determined based on the difference between the seventh and eighth numbers. The seventh quantity is determined by the sum of the sizes of the M CSI fields associated with each of the K resources, based on the sizes of the CSI fields determined by the corresponding RI constraints, and the eighth quantity is determined by the sum of the sizes of the CSI fields corresponding to the M resources.

15. A method performed by a base station in a wireless communication system, the method comprising: Send Channel State Information (CSI) reporting configuration, wherein the CSI reporting configuration indicates a set of K resources for channel measurement, where K>1; Receive CSI, wherein the CSI includes M of the K resources. R CSI and MM associated with each resource R CSI associated with each resource, M R ≥0, Wherein, M and M R The resource is the configuration indicated by the CSI report, and the MM R The resources are derived from the K resources excluding M. R Resources other than those resources Wherein, the received CSI includes CSI Part 1 and CSI Part 2, and the CSI reporting configuration indicates that each of the K resources corresponds to a rank indicator RI limit, the MM R The CSI portion 1 associated with the m-th resource in the 1 resource is zero-padded to a fixed payload size by zero-padding bits, 1 ≤ m ≤ M M. R .

16. A method performed by a base station in a wireless communication system, the method comprising: Send Channel State Information (CSI) reporting configuration, wherein the CSI reporting configuration indicates a set of K resources for channel measurement, where K>1; Receive CSI, wherein the CSI includes CSIs associated with M of the K resources, where M is the configuration indication reported by the CSI, and 1 < M ≤ K. Wherein, if the CSI is carried by the Physical Uplink Control Channel (PUCCH) and is of wideband frequency domain granularity, and the CSI reporting configuration indicates that each of the K resources corresponds to a rank indicator (RI) constraint, the CSI associated with the m-th resource among the M resources includes zero-padding bits, 1 ≤ m ≤ M, wherein the number of zero-padding bits is determined based on the difference between a third number and a fourth number. The third quantity is determined based on the size of the CSI field associated with each of the K resources, which is determined based on the corresponding RI constraint, and the fourth quantity is determined based on the size of the CSI field associated with the m-th resource.

17. A method performed by a base station in a wireless communication system, the method comprising: Send Channel State Information (CSI) reporting configuration, wherein the CSI reporting configuration indicates a set of K resources for channel measurement, where K>1; Receive CSI, wherein the CSI includes M of the K resources. R CSI and MM associated with each resource R CSI associated with each resource, M R ≥0, Wherein, M and M R The resource is the configuration indicated by the CSI report, and the MM R The resources are derived from the K resources excluding M. R Resources other than those resources Wherein, the received CSI includes CSI Part 1 and CSI Part 2, and the CSI reporting configuration indicates that each of the K resources corresponds to a rank indicator RI limit, the MM R The resource-associated CSI part 1 is zero-padded to a fixed payload size by zero-padding bits.

18. A method performed by a base station in a wireless communication system, the method comprising: Send Channel State Information (CSI) reporting configuration, wherein the CSI reporting configuration indicates a set of K resources for channel measurement, where K>1; Receive CSI, wherein the CSI includes CSIs associated with M of the K resources, where M is the configuration indication reported by the CSI, and 1 < M ≤ K. Wherein, the CSIs associated with the M resources are carried by the Physical Uplink Control Channel (PUCCH) and are of wideband frequency domain granularity, and the CSI reporting configuration indicates that each of the K resources corresponds to a rank indicator (RI) constraint, the CSIs associated with the M resources include zero-padding bits, wherein the number of zero-padding bits is determined based on the difference between the seventh and eighth numbers. The seventh quantity is determined by the sum of the sizes of the M CSI fields associated with each of the K resources, based on the sizes of the CSI fields determined by the corresponding RI constraints, and the eighth quantity is determined by the sum of the sizes of the CSI fields corresponding to the M resources.

19. A user equipment, comprising: transceiver; as well as A controller, coupled to the transceiver, is configured to perform the method according to any one of claims 1-14.

20. A base station, comprising: transceiver; as well as A controller, coupled to the transceiver, is configured to perform the method according to any one of claims 15-18.

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