Method and apparatus for transmitting and receiving channel state information, and communication system

Abstract

In an embodiment of the present invention, a method and apparatus for transmitting and receiving channel state information, and a communication system are provided, the apparatus being applicable to a terminal device, and including: a first receiver for receiving a first channel state reference signal (CSIRS) resource configuration from a network device, the first CSIRS resource configuration including at least a first resource set, the first resource set including K CSIRS resources, where K is a natural number greater than or equal to 2; and a first processor for determining a CSI reporting priority based on at least first channel state information part 1 (CSI part I) reporting field information and / or second CSI part I reporting field information, the first CSI part I reporting field information being used to determine a K resource selection result, and the second CSI part I reporting field information being used to determine a spatial-domain beam selection result, the first processor further generating CSI based on at least the CSI reporting priority.

Description

[Technical Field]

[0001] The present invention relates to the field of communications. [Background technology]

[0002] In a New Radio (NR) system, a user can measure the current channel based on the channel state information (CSI) resource configuration and CSI reporting configuration configured on the network device side, and can carry the channel state information via uplink control information (UCI) in an uplink channel (e.g., a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH)) to provide report feedback.

[0003] The multiple-transmission reception point (M-TRP) coordinated transmission scheme is an important technology for improving cell-edge user throughput and providing more balanced service quality to serving cells in NR systems. M-TRP transmission schemes can be broadly divided into two types: coherent joint transmission (C-JT) schemes and non-coherent joint transmission (NC-JT) schemes. The difference between the two schemes lies in the mapping relationship from layers to multiple TRPs. In the C-JT scheme, all physical downlink shared channel / demodulation reference signal (PDSCH / DMRS) ports jointly transmitted from multiple transmission points (TRPs) transmit coherently with signals from multiple TRPs. In the NC-JT scheme, each PDSCH / DMRS port transmits from each TRP.

[0004] Figure 1 shows single-point transmission, coherent joint transmission and non-coherent joint transmission, where A in Figure 1 corresponds to single-point transmission, B in Figure 1 corresponds to C-JT transmission and C in Figure 1 corresponds to NC-JT.

[0005] In Rel-15 / 16, all users report CSI based on the single-transmission reception point (S-TRP) scheme, where CSI includes precoding matrix indicator (PMI), rank indication (RI), layer indication (LI), channel quality indication (CQI), etc. Rel-17 supports enhanced CSI resource configuration and reporting by enhancing the NC-JT scheme. Terminal devices can perform joint channel measurements based on reference signals transmitted by M transmission points based on NC-JT transmission and report M PMIs, M RIs, M LIs, and N CQIs (N = 1 for single codewords and N = 2 for dual codewords). Currently, only CSI reporting under the 'type I single-panel' codebook configuration is supported.

[0006] In the case of coherent joint transmission, each data layer is mapped to multiple TRPs / panels that jointly access by a weighted vector, which is equivalent to concatenating multiple sub-matrices to form a higher-dimensional virtual matrix. Therefore, the C-JT transmission scheme can achieve higher forming / precoding / multiplexing gain and significantly improve the throughput of cell edge users and the average throughput of the cell.

[0007] It should be noted that the introduction of the above background art is intended to clearly and completely explain the technical solutions of the present invention and to facilitate understanding by those skilled in the art, and these technical solutions described in the background art of the present invention should not be construed as being well known to those skilled in the art. Summary of the Invention [Problem to be solved by the invention]

[0008] According to the transmission and mapping characteristics of data / reference signals in the CJT transmission scheme, the terminal equipment needs to perform joint channel measurement based on the reference signals transmitted by K multiple transmission points based on C-JT transmission, and jointly feed back CSI information such as a single PMI, RI, LI, and CQI.

[0009] However, at present, the CSI feedback mechanism in the Rel-15 to Rel-17 standards cannot be applied to CSI feedback in the C-JT transmission scheme. That is, the CSI fed back by the terminal device cannot accurately and completely reflect the real channel quality experienced by the C-JT resource port, which reduces the accuracy and reliability of data scheduling. This reduces data transmission performance and reduces the throughput of single users and the entire network.

[0010] For example, the prior art does not specify information such as part I reporting field information and bit width in the CSI reporting field under CJT joint transmission, so that network devices cannot accurately receive and demodulate part I information based on the joint coherent transmission scheme. Furthermore, for example, when a terminal device receives all Part I information based on the joint coherent transmission scheme, the reporting priority of the part I information is not defined. Therefore, when the code rate is higher than a predetermined maximum code rate, the network device cannot determine which information to ignore based on the priority definition. As a result, some CSI information cannot be accurately received and demodulated, which significantly affects the accuracy and completeness of measurement reports and makes it impossible to guarantee data transmission performance.

[0011] In view of at least one of the above-mentioned problems or other similar problems, embodiments of the present invention provide a method and apparatus for transmitting and receiving channel state information, and a communication system, in which a CSI reporting priority is determined based on first CSI part I reporting field information and / or second CSI part I reporting field information, thereby enabling a network device to accurately receive and demodulate the received CSI, thereby improving the accuracy and completeness of measurement reports and ensuring data transmission performance. [Means for solving the problem]

[0012] According to one aspect of an embodiment of the present invention, there is provided a channel state information transmitting device, which is applied to a terminal device, and the device comprises: a first receiver for receiving a first Channel Condition Reference Signal (CSIRS) resource configuration from a network device, the first CSIRS resource configuration including at least a first resource set, the first resource set including K CSIRS resources, K being a natural number greater than or equal to 2; and a first processor that determines a CSI reporting priority based on at least first channel state information part 1 (CSI part I) reporting field information and / or second CSI part I reporting field information, wherein the first CSI part I reporting field information is used to determine K resource selection results, and the second CSI part I reporting field information is used to determine a spatial-domain beam selection result; The first processor further generates CSI based on at least the CSI reporting priority.

[0013] According to another aspect of the embodiment of the present invention, there is provided a channel state information receiving apparatus, which is applied to a network device, and the apparatus comprises: a second transmitter for transmitting a first channel condition reference signal (CSIRS) resource configuration to a terminal device, the first CSIRS resource configuration including at least a first resource set, the first resource set including K CSIRS resources, where K is a natural number greater than or equal to 2; and a second receiver for receiving CSI generated by the terminal device based on the CSI reporting priority; The CSI reporting priority is determined based on at least first channel state information part 1 (CSI part I) reporting field information and / or second CSI part I reporting field information, where the first CSI part I reporting field information is used to determine K resource selection results, and the second CSI part I reporting field information is used to determine spatial domain beam selection results. [Effects of the Invention]

[0014] The advantageous effects of the embodiments of the present invention are at least as follows: determining a CSI reporting priority based on the first CSI part I reporting field information and / or the second CSI part I reporting field information enables a network device to accurately receive and demodulate the received CSI, thereby improving the accuracy and completeness of measurement reports and ensuring data transmission performance.

[0015] The following description and reference to the drawings disclose in detail particular embodiments of the present invention, illustrating ways in which the principles of the present invention may be employed. However, the scope of the present invention is not limited thereto. Embodiments of the present invention may include various changes, modifications, and alternatives within the scope of the appended claims.

[0016] Additionally, features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, may be combined with features in the other embodiments, or may be substituted for features in the other embodiments.

[0017] It should be noted that when used in this specification, terms such as "comprise / have" refer to the presence of a feature, element, step, or assembly, but do not exclude the presence or addition of one or more other features, elements, steps, or assemblies. [Brief explanation of the drawings]

[0018] Elements and features described in one drawing or one embodiment of the invention may be combined with elements and features shown in one or more other drawings or embodiments, and in the drawings, like reference numerals are used to indicate corresponding parts in several drawings and also to indicate corresponding parts used in multiple embodiments. [Figure 1] 1 illustrates single point transmission, coherent joint transmission and non-coherent joint transmission; [Figure 2] 1 is a diagram illustrating a communication system according to the present invention. [Figure 3] FIG. 1 illustrates an NR system performing decoupling based on CSI measurements and CSI feedback. [Figure 4] FIG. 2 is a diagram illustrating a method for transmitting channel state information according to a first aspect of the present invention. [Figure 5] FIG. 10 illustrates a method for receiving channel state information according to a second aspect of the present invention. [Figure 6] FIG. 10 is a diagram illustrating a channel state information transmitting device according to a third aspect of the present invention. [Figure 7] FIG. 10 is a diagram illustrating a channel state information receiving device according to a fourth aspect of the present invention. [Figure 8] FIG. 10 is a diagram illustrating a terminal device according to an embodiment of the fifth aspect. [Figure 9] FIG. 10 is a diagram illustrating a network device according to an embodiment of the fifth aspect. DETAILED DESCRIPTION OF THE INVENTION

[0019] The foregoing and other features of the present invention will become more apparent from a consideration of the accompanying drawings and the following description. While the specification and drawings disclose particular embodiments of the present invention, they illustrate only some of the embodiments which may employ the principles of the present invention, and it is to be understood that the present invention is not limited to the described embodiments, but rather includes all modifications, variations, and alternatives which fall within the scope of the appended claims.

[0020] In embodiments of the present invention, the term "communication network" or "wireless communication network" may refer to a network conforming to any communication standard, such as New Radio (NR), Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0021] Additionally, communications between devices in a communications system may be performed according to any level of communications protocol, including, but not limited to, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, 5G, New Radio (NR), and / or other conventional or future-developed communications protocols.

[0022] In the embodiments of the present invention, the term "network equipment" refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services to the terminal device. The network equipment may include, but is not limited to, a node and / or a donor in an IAB architecture, a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobile management entity (MME), a network gateway, a server, a radio network controller (RNC), a base station controller (BSC), etc.

[0023] A base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), a 5G base station (gNB), etc., and may further include a Remote Radio Head (RRH), a Remote Radio Unit (RRU), a relay, or a low-power node (e.g., femto, pico, etc.). The term "base station" may also include some or all of the functionality thereof, and each base station can provide communication coverage for a particular geographic area. The term "cell" may refer to a base station and / or the area it covers, depending on the context in which the term is used.

[0024] In embodiments of the present invention, the term "User Equipment" (UE) or "Terminal Equipment" (TE) refers to a device that accesses a communication network and receives services from the network, for example, via network equipment. User equipment may be fixed or mobile, and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, etc.

[0025] User equipment may include, but is not limited to, cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, mobile devices, machine-type communication devices, laptop computers, cordless phones, smartphones, smart watches, digital cameras, and the like.

[0026] Furthermore, for example, in the case of a scenario such as the Internet of Things (IoT), the user equipment may also be a monitoring or measuring device or apparatus, including, but not limited to, a Machine Type Communication (MTC) terminal, an in-vehicle communication terminal, a Device to Device (D2D) terminal, a Machine to Machine (M2M) terminal, etc.

[0027] Furthermore, the term "network side" or "network equipment side" refers to the network side, which may be a base station or may include one or more network equipment as described above. The term "user side" or "terminal side" or "terminal equipment side" refers to the user or terminal side, which may be a UE or may include one or more terminal equipment as described above. Unless otherwise specified, "equipment" may refer to either network equipment or terminal equipment.

[0028] In the following description, unless it causes confusion, the term "uplink control signal" is interchangeable with "uplink control information (UCI)" or "physical uplink control channel (PUCCH)", the term "uplink data signal" is interchangeable with "uplink data information" or "physical uplink shared channel (PUSCH)", the term "downlink control signal" is interchangeable with "downlink control information (DCI)" or "physical downlink control channel (PDCCH)", and the term "downlink data signal" is interchangeable with "downlink data information" or "physical downlink shared channel (PDSCH)".

[0029] Furthermore, transmitting or receiving a PUSCH may be understood as transmitting or receiving uplink data carried by the PUSCH, transmitting or receiving a PUCCH may be understood as transmitting or receiving uplink information carried by the PUCCH, transmitting or receiving a PRACH may be understood as transmitting or receiving a preamble carried by the PRACH, and an uplink signal may include an uplink data signal and / or an uplink control signal, and may be referred to as an uplink transmission (UL transmission), uplink information, or uplink channel. Transmitting an uplink transmission on an uplink resource may be understood as transmitting the uplink transmission using the uplink resource. Similarly, downlink data / signal / channel / information may be understood.

[0030] In an embodiment of the present invention, the higher layer signaling may be, for example, Radio Resource Control (RRC) signaling, for example, referred to as an RRC message, including, for example, MIB, system information, and dedicated RRC messages, or referred to as an RRC information element (IE). The higher layer signaling may also be, for example, Medium Access Control (MAC) signaling, or referred to as a MAC control element (CE). However, the present invention is not limited thereto.

[0031] Hereinafter, the scenario of the embodiment of the present invention will be described through an example, but the present invention is not limited thereto.

[0032] 2 is a diagram showing a communication system in an embodiment of the present invention, taking a terminal device and a network device as an example. As shown in FIG. 2, communication system 100 may include network device 201 and terminal device 202. For convenience, only one terminal device is used as an example in FIG. 1, but the embodiment of the present invention is not limited to this.

[0033] In an embodiment of the present invention, existing services (traffic / services) or future services may be transmitted and received between the network device 201 and the terminal device 202. For example, these services may include, but are not limited to, eMBB (enhanced Mobile Broadband), mMTC (massive Machine Type Communication), URLLC (Ultra-Reliable and Low-Latency Communication), etc.

[0034] Wherein, the terminal device 202 may transmit data to the network device 201, for example, using a licensed or unlicensed transmission method. The network device 201 may receive data transmitted by one or more terminal devices 202, and feed back information, such as acknowledged ACK / unacknowledged NACK information, to the terminal device 202. Based on the feedback information, the terminal device 202 may confirm the completion of the transmission process, or may transmit new data again, or may retransmit data.

[0035] In each embodiment of the present invention, reporting may refer to an action (operation) of a terminal device transmitting information to a network device. For example, reporting CSI by a terminal device may refer to the terminal device transmitting CSI to a network device.

[0036] Figure 3 illustrates how an NR system performs decoupling based on CSI measurements and CSI feedback. As shown in Figure 3, each terminal device can configure N (N≧1) reporting settings and M (M≧1) resource settings. Each reporting setting is associated with at least one resource setting and is used for channel measurement and interference measurement. For each bandwidth part (BWP), N≦12 and M≦28.

[0037] The CSI resource setting is used for interference measurement (CSI-IM / NZP CSI-RS) and CSI acquisition (NZP CSI-RS). Each resource setting includes S resource sets. Each resource set includes Ks CSI-RS resources.

[0038] The CSI reporting scheme is set to one of AP, P, and SP. Scheme AP may include one or more resource sets. Schemes P and SP need to include only one resource set when used for CSI acquisition.

[0039] The CSI reporting configuration is used to configure the CSI parameters to be reported (report quantity), CSI type (Type I or Type II), codebook parameter settings and CSI reporting time domain behavior, frequency domain granularity of the precoding matrix indicator (PMI) and channel quality indicator (CQI), measurement constraint settings, and CSI reporting bandwidth.

[0040] The CSI parameters (report quantity) supported by NR include 'none', 'cri-RI-PMI-CQI', 'cri-RI-i1', 'cri-RI-i1-CQI', 'cri-RI-CQI', 'cri-RSRP', 'cri-SINR', 'ssb-Index-RSRP', 'ssb-Index-SINR' or 'cri-RI-LI-PMI-CQI'.

[0041] CSI types include 'type I Single-Panel', 'type I Multi-Panel', 'type II', 'type II-PortSelection', 'type II-r16', 'type II-PortSelection-r16', 'type II-PortSelection-r17', etc.

[0042] Furthermore, in CSI reporting based on 'type II-r16' or 'type II-PortSelection-r17', only wideband parameter information can be reported via the Physical Uplink Control Channel (PUCCH), and when subband codebook parameter information exists, it can be reported via the Physical Uplink Shared Channel (PUSCH), which may be divided into Part 1 (Part I) and Part 2 (Part II), as shown in Table 1 below.

[0043] [Table 1] In addition, in CSI reporting based on 'typeII-r16' or 'typeII-PortSelection-r17', Part I information is reported according to priority, and CSI reporting is omitted from the lowest priority until the code rate of the CSI report is equal to or less than the code rate set by the upper layer parameter maxCodeRate. For example, the priority of each information field is as shown in Table 2 below.

[0044] [Table 2] In the following embodiments of the present invention, at least a portion of the CSI is ignored (or, alternatively, at least a portion of the CSI is omitted or at least a portion of the CSI is dropped). Here, ignore, omit, and drop are interchangeable, and all three terms correspond to omit.

[0045] <Example of the first aspect> In the prior art, for example, in uplink control information (UCI) reports based on the current 'type II-r16' or 'type II-PortSelection-r17', the part I reporting field information and bit width in the CSI reporting field based on the CJT joint transmission are not specified, and therefore, the network device cannot accurately receive and demodulate the part I information based on the joint coherent transmission scheme. Also, when a terminal device receives all the part I information based on the joint coherent transmission scheme, if the reporting priority of the part I information is not currently defined and the code rate is greater than a predetermined maximum code rate, the network device cannot ignore the information according to the priority definition. As a result, some CSI information cannot be accurately received and demodulated, which significantly affects the accuracy and completeness of measurement reports and makes it impossible to guarantee data transmission performance.

[0046] In order to solve the above-mentioned problem or at least a similar problem, an embodiment of a first aspect of the present invention provides a method for transmitting channel state information, which is applied to a terminal device. In the following description, the terminal device may be, for example, the terminal device 202 in Figure 2, and the network device communicating with the terminal device may be, for example, the network device 201 in Figure 2.

[0047] 4 is a diagram illustrating a method for transmitting channel state information according to an embodiment of the first aspect of the present invention. As shown in FIG. 4, the method includes the following operations (steps): Operation 401: A terminal device receives a first channel condition reference signal (CSIRS) resource configuration from a network device, the first CSIRS resource configuration including at least a first resource set, the first resource set including K CSIRS resources, where K is a natural number greater than or equal to 2; Operation 402: The terminal device determines a CSI reporting priority based on at least first channel state information part 1 (CSI part I) reporting field information and / or second CSI part I reporting field information, where the first CSI part I reporting field information is used to determine K resource selection results, and the second CSI part I reporting field information is used to determine a spatial domain beam selection result; and Operation 403: The terminal device generates CSI based on at least the CSI reporting priority.

[0048] In the present invention, the terminal device can determine the reporting and measurement of CSI information based on whether the CSI measurement scheme configured by higher layer signaling configuration is mode 1 or mode 2.

[0049] In operation 403, the terminal device generating CSI based on at least the CSI reporting priority includes the terminal device omitting at least a portion of the CSI based on the CSI reporting priority. For example, when the code rate of the CSI report is equal to or greater than the code rate set by the higher layer parameter (e.g., the higher layer parameter is maxCodeRate), the terminal device omits, ignores, or drops some CSI reports from the lowest priority according to the CSI reporting priority (e.g., CSI part I reporting priority) until the code rate of the CSI report is equal to or less than the code rate set by the higher layer parameter (e.g., the higher layer parameter is maxCodeRate).

[0050] In some embodiments, the terminal device can calculate a channel quality indication (CQI) based on the at least M CSIRS resources, where the CQI is, for example, a portion of the CSI.

[0051] In some embodiments, the M CSIRS resources refer to the K CSIRS resources according to operation 401, eg, the M CSIRS resources are M of the K CSIRS resources.

[0052] The M CSIRS resources are optimal resources among the K CSIRS resources, for example, the optimal resources include: a first number of resources before a reference signal received power (RSRP) maximum, the first number being less than or equal to M; and / or a second quantity of resources whose RSRP is equal to or greater than a predetermined threshold, the second quantity being less than or equal to M; and / or a third number of resources before a minimum block error rate (BLER), the third number being less than or equal to M; and / or A fourth quantity of resources having a BLER less than or equal to a predetermined threshold, the fourth quantity being less than or equal to M.

[0053] In operation 402 of the present invention, the terminal device determines a CSI reporting priority based on the first CSI part I reporting area information and / or the second CSI part I reporting area information.

[0054] The first CSI part I reporting field information is used to determine the K resource selection results, for example, the first CSI part I reporting field information may be referred to as a “TRP selection reporting result in the CJT transmission scheme.”

[0055] The second CSI part I reporting field information is used to determine the spatial domain beam selection result, for example, the second CSI part I reporting field information may be referred to as "SD beam quantity combination reporting result in CJT transmission scheme."

[0056] In some embodiments, the terminal device determines the bit width of the first CSI part I reporting area information and / or the bit width of the second CSI part I reporting area information based on information about the number of bits of a predetermined value.

[0057] In some embodiments, the terminal device may further determine the CSI reporting priority based on the third CSI part I reporting field information and / or the fourth CSI part I reporting field information.

[0058] The third CSI part I reporting field information is used to determine the indication of the sum of non-zero coefficients of all M layers, for example, the third CSI part I reporting field information is "the sum of non-zero coefficients of all M layers K NZ,i may also be referred to as "instructions."

[0059] The fourth CSI part I reporting field information is used to determine the sum of non-zero coefficients of all layers for M resources arranged in a predetermined order. For example, the fourth CSI part I reporting field information is “the sum of non-zero coefficients of all i-th layers K NZ,i may be referred to as an "indication", where i is a natural number and 1≦i≦M.

[0060] In some embodiments, the bit widths of the first CSI part I reporting area information, the second CSI part I reporting area information, the third CSI part I reporting area information, and the fourth CSI part I reporting area information are as shown in Table 3 below.

[0061] [Table 3] In some embodiments, corresponding to operation 402, the CSI reporting priorities determined by the terminal device are sequentially arranged from high to low as follows: Rank Indicator (RI), First CSI part I reporting area information, Second CSI part I reporting area information, Third CSI part I reporting area information; or Rank Indicator (RI), first CSI part I reporting area information, second CSI part I reporting area information, fourth CSI part I reporting area information; or First CSI part I reporting area information, second CSI part I reporting area information, rank indication (RI), fourth CSI part I reporting area information; or First CSI part I reporting area information, second CSI part I reporting area information, rank indicator (RI), third CSI part I reporting area information is.

[0062] Note that the order of priority listed above is merely an example, and the present invention is not limited thereto. Among the CSI reporting priorities, the order of priority of each reporting domain information may be other orders.

[0063] In some embodiments, the terminal device further transmits X pieces of fifth CSI part I reporting domain information based on each CSIRS resource, where each CSIRS resource refers to each CSIRS resource among the above-mentioned M CSIRS resources.

[0064] Wherein, 1≦X≦M, where X can be set by higher layer signaling or can be predefined.

[0065] In some embodiments, the X fifth CSI part I reporting field information have the same RI value, thereby allowing CSI of multiple transmission schemes to be reported.

[0066] In some embodiments, where X=M, the first portion information of the X fifth CSI part I reporting area information is measurements corresponding to (associated with) all X channel state information reference signals (CSI-RS) out of M, where the i-th CSI corresponds to (associated with) the i-th CSI-RS resource in the bitmap, with a predetermined value.

[0067] In some embodiments, if X≦M, The first portion information of the X fifth CSI part I reporting area information is measurement information corresponding to (associated with) the previous X CSI-RSs among M; or The first part information of the X fifth CSI part I reporting area information of the terminal device report corresponds to K CSI-RS resources, among which the K CSI-RS resources are included in a non-zero power channel state information reference signal (NZP-CSI-RS) resource set; or The first part information of the X fifth CSI part I reporting area information in the terminal device report corresponds (associates) with the M CSI-RS resources.

[0068] The channel state information transmission method of the present invention will be described below from the network device side.

[0069] Operation 1-1: The network device can configure the multipoint joint coherent transmission scheme (CJT) and CSI reporting settings through the following upper layer signaling:

[0070] In some embodiments of operation 1-1, a new 'coherent-JTscheme' RRC upper layer signaling may be added to configure a multipoint joint coherent transmission scheme (CJT), whereby when 'coherent-JTscheme'=mode 1, it is the mode 1 CSI measurement scheme, and when 'coherent-JTscheme'=mode 2, it is the mode 2 CSI measurement scheme.

[0071] In some other embodiments of operation 1-1, a new subsetting 'typeII-r18-coherentJT' may be added to 'codebookConfig-r18' to configure a multipoint joint coherent transmission scheme (CJT). For example, a new subsetting 'csi-codebookMode-r18-coherentJT'=mode 1 may be added to indicate the mode 1 CSI measurement scheme, and similarly, a new subsetting 'csi-codebookMode-r18-coherentJT'=mode 2 may be added to indicate the mode 2 CSI measurement scheme.

[0072] Operation 1-2: The network device configures the CSI resource configuration by newly adding higher layer signaling, and receives and measures the CSI-RS resource based on the CJT transmission.

[0073] Among them, the resource configuration includes a non-zero power channel state information reference signal (NZP-CSI-RS) resource set for channel measurement (e.g., may be referred to as a first resource set), and the NZP-CSI-RS resource set includes K CSI-RS resources.

[0074] Operation 2: The network device receives CSI report information based on a multipoint joint coherent transmission scheme (CJT) from the terminal device, in which the CSI includes part 1 (i.e., CSI part I) and part 2 (i.e., CSI part II).

[0075] Operation 3: The network device decodes the received CSI part I according to one of the following priority orders 1 to 4.

[0076] Priority order 1: RI > TRP selection reporting result in the CJT transmission scheme (i.e., first CSI part I reporting area information) > SD beam combination reporting result in the CJT transmission scheme (i.e., second CSI part I reporting area information) > selection of indication of the sum of non-zero coefficients of all M layers (i.e., third CSI part I reporting area information).

[0077] Among them, the TRP selection report result in the CJT transmission scheme includes a bitmap of Kbits.

[0078] Among them, the reported results of SD beam combination in CJT transmission scheme are as follows:

[0079]

number

[0080] Wherein, M is the number of '1's in the bitmap in the TRP selection report result in the CJT transmission scheme. NZ,i is the sum of non-zero coefficients of all layers corresponding to (associated with) the i-th CSI-RS resource in the bitmap with a value of '1', and the reporting overhead is

[0081]

number

[0082] The above-mentioned priority order 1 may be, for example, as shown in Table 4 below, and the reporting area information of CSI part I may be, for example, as shown in Table 5 below.

[0083] [Table 4]

[0084] [Table 5] Priority order 2: RI > Reported results of TRP selection in CJT transmission scheme > Reported results of SD beam combination in CJT transmission scheme > Selection of non-zero coefficient sum of TRP 1 > Selection of non-zero coefficient sum of TRP 2 > ··· > Selection of non-zero coefficient sum of TRP M.

[0085] Among them, the TRP selection report result / SD beam combination report result in the CJT transmission scheme is the same as "Priority Order 1".

[0086] Among them, the selection of the non-zero coefficient sum of TRP1, the selection of the non-zero coefficient sum of TRP2, ..., the selection of the non-zero coefficient sum of TRP M corresponds to the X pieces of fifth CSI part I reporting field information mentioned above.

[0087] Among them, K NZ,iis the sum of non-zero coefficients of all layers corresponding to (associated with) the i-th CSI-RS resource in the bitmap with a value of '1', and K NZ,i The reporting overhead is

[0088]

number

[0089] In some embodiments, the sum of non-zero coefficients of all layers in each NZ,m may be the same, for example, K NZ,1 =···=K NZ,m , which saves further reporting overhead.

[0090] The above-mentioned priority order 2 and the reporting area information of CSI part I are, for example, as shown in Table 6 below.

[0091] [Table 6] Priority order 3: Reported results of TRP selection in CJT transmission scheme > Reported results of SD beam combination in CJT transmission scheme > RI > Selection of non-zero coefficient sum of TRP 1 > Selection of non-zero coefficient sum of TRP 2 > ··· > Selection of non-zero coefficient sum of TRP M.

[0092] Among them, the TRP selection report result / SD beam combination report result in the CJT transmission scheme is the same as the explanation for priority order 1.

[0093] Among them, K NZ,i is the sum of non-zero coefficients of all layers corresponding to (associated with) the i-th CSI-RS resource in the bitmap that has a value of '1'.

[0094] In some embodiments, the sum of non-zero coefficients of all layers in each NZ,iWe can add a new constraint that K NZ,1 =···=K NZ,m , which saves further reporting overhead.

[0095] The above priority order 3 and the reporting area information of CSI part I are as shown in Table 7 below.

[0096] [Table 7] Priority order 4: TRP selection report result in CJT transmission scheme>SD beam combination report result in CJT transmission scheme>RI>selection of the sum of non-zero coefficients of all TRPs.

[0097] Among them, the TRP selection report result in the CJT transmission scheme consists of a Kbit bitmap.

[0098] Among them, the SD beam combination report result in the CJT transmission scheme is represented by a log(K)bit bitmap.

[0099] Wherein, M is the number of '1's in the bitmap in the TRP selection report result in the CJT transmission scheme. NZ,i is the sum of non-zero coefficients of all layers corresponding to (associated with) the i-th CSI-RS resource in the bitmap that has a value of '1'.

[0100] The above-mentioned priority order 4 and the report area information of CSI part I are, for example, as shown in Tables 8 and 9 below.

[0101] [Table 8]

[0102] [Table 9] In some embodiments, the network device may further receive X CSI resource-based fifth CSI part I reporting area information (i.e., X single-point-based transmission scheme CSI information), where 1≦X≦M. In this case, the priority order of the first CSI part I reporting area information to the fifth CSI part I reporting area information is as shown in Table 10 below.

[0103] [Table 10] In some embodiments, the RI in each fifth CSI part I reporting field information may be the same, thereby allowing CSI information for multiple transmission schemes to be reported.

[0104] A method for transmitting channel state information from the terminal device side according to the present invention will be described below.

[0105] Operation 1: The terminal device determines a multipoint joint coherent transmission scheme (CJT), a CSI resource configuration and a reporting configuration based on the received higher layer signaling configuration, and / or l ≧1 is the SD beam quantity combination candidate setting. For specific setting information, please refer to the relevant explanation on the network equipment side.

[0106] Operation 2: The terminal device determines resources for measuring K CSI-RSs and determines CSI part I information, including but not limited to: The terminal side receives K CSI-RS measurement resources and determines M transmission point / CSI-RS resource selection results, in which the TRP / CSI-RS resource selection report result in the CJT transmission scheme consists of a Kbit bitmap; and The terminal side receives the above-mentioned selected M CSI-RS measurement resources and recommends reporting one spatial domain joint beam quantity recommendation result, whereby the overhead of the spatial domain joint beam quantity recommendation result in the CJT transmission scheme is:

[0107]

number

[0108] In operation 2, the setting information is the same as that on the network device side.

[0109] Operation 3: The terminal device receives the above-mentioned selected M CSI-RS measurement resources, and reports RI, CQI, and the non-zero coefficient sum of all layers of the CJT transmission scheme based on one of the following methods: The sum of non-zero coefficient quantities K of all layers corresponding to all resources of the terminal equipment corresponding to the priority order 1 or 4 described in the description of the network equipment NZ Measure and report; and According to the priority order 2 or 3 described in the description of the network device, the terminal device measures and reports the sum of non-zero coefficient quantities of all layers corresponding to each resource among the total M resources, among which K NZ,i is the sum of non-zero coefficients of all layers corresponding to (associated with) the i-th CSI-RS resource in the bitmap that has a value of '1'.

[0110] In some embodiments, the sum of non-zero coefficients of all layers in each NZ,m We can add a new constraint that K NZ,1 =···=K NZ,m , which saves further reporting overhead.

[0111] Corresponding to the priority order 1, 2, 3 or 4 on the network device side, the terminal device calculates the sum K of non-zero coefficient quantities of all layers corresponding to all (or each) resources. NZ,ican be measured and reported, among which K NZ,1 =···=K NZ,m is.

[0112] In some embodiments, the terminal device may further report, based on the M CSI-RS resources, X pieces of CSI part I information under single-point transmission schemes (i.e., X pieces of fifth CSI part I reporting area information), where X≦1≦M, where X may optionally be configured by higher layer signaling or may be predefined.

[0113] In some embodiments, the CSI part I information under the X single point transmission schemes includes, but is not limited to, the information listed in Table 11 below.

[0114] [Table 11] In some embodiments, the CSI information of multiple transmission schemes may be reported by adding a new requirement that the RI in the CSI information of the CJT joint transmission scheme and the single-point transmission scheme is the same (i.e., the RI values ​​of the X fifth CSI part I reporting field information are the same).

[0115] In some embodiments, the X pieces of CSI part I information may be determined based on one of the following methods: When X=M, the X reported information are measurements corresponding to (associated with) all X CSI-RSs among M, where the i-th CSI information corresponds to (associated with) the i-th CSI-RS resource in the bitmap with a value of '1'; and When X≦M, there are three methods: Method 1, Method 2, and Method 3, namely: Method 1: X pieces of report information are measurement information corresponding to (associated with) the previous X CSI-RSs among M; Method 2: A terminal device reports a correspondence (association) relationship between X pieces of report information and K pieces of CSI-RS resources, and the correspondence (association) relationship is represented by a kbit bitmap; and Method 3: A terminal device reports a correspondence (association) relationship between X pieces of report information and M CSI-RS resources, and the correspondence (association) relationship is represented by an Mbit bitmap.

[0116] The channel state information transmitting and receiving methods of the present invention will be described in more detail below with specific examples.

[0117] Example 1: In Example 1, the network device side will be described. Example 1 corresponds to a case where the above-mentioned priority order 1 or 4 is adopted, and where CJT transmission scheme CSI information (i.e., at least one of first CSI part I reporting area information and second CSI part I reporting area information) is reported, but single-point transmission scheme CSI information is not reported.

[0118] In Example 1, the operation of the network device is as follows:

[0119] Operation 1-1: The network device configures the multipoint joint coherent transmission scheme (CJT) and CSI reporting configuration by newly adding higher layer signaling as follows:

[0120] For example, a multipoint joint coherent transmission scheme (CJT) may be configured by adding a new 'coherent-JT scheme' RRC upper layer signaling. Table 12 below shows an example.

[0121] [Table 12] If 'coherent-JTscheme'=mode 1, this is the mode 1 CSI measurement scheme, and if 'coherent-JTscheme'=mode 2, this is the mode 2 CSI measurement scheme.

[0122] Also, for example, a multipoint joint coherent transmission scheme (CJT) may be configured by adding a new sub-configuration 'typeII-r18-coherentJT' to 'codebookConfig-r18'. Table 13 below shows an example.

[0123] [Table 13] In some embodiments, a new subset 'csi-codebookMode-r18-coherentJT'=mode 1 may be added, which is the mode 1 CSI measurement scheme, and similarly 'csi-codebookMode-r18-coherentJT'=mode 2, which is the mode 2 CSI measurement scheme.

[0124] Operation 1-2: The network device configures K=4 CJT transmission-based CSI-RS resources by adding new upper layer signaling as follows, and configures the following spatial domain beam combination candidate configurations through RRC. For example, as shown in Table 14 below, there are a total of 8 candidate beam quantity combination configuration methods, namely, N l =8.

[0125] [Table 14] Operation 2: The terminal side receives the resources to measure the four CSI-RS, calculates and reports the CSI part I information.

[0126] By measuring channel information such as large-scale RSRP, the first, second, and fourth selections are determined as the optimal transmission point / CSI-RS resource selection results, among which, the TRP / CSI-RS resource selection report result in the CJT transmission scheme is 1101.

[0127] The terminal side receives the resources for measuring the above-mentioned three selected CSI-RSs, and recommends reporting one spatial domain joint beam number recommendation result (for example, the recommendation result is SD-para-combination#5), that is, 101. Among them, the spatial domain joint beam number recommendation result in the CJT transmission scheme is N l Among them, N l ≥ 1 is the SD beam number combination candidate setting, which may be configured by higher layer signaling. Optionally, N l When = 1, the terminal does not need to report the spatial domain joint beam quantity recommendation result.

[0128] The terminal side receives the resources for jointly measuring the above-mentioned three selected CSI-RSs, and calculates RI=2, CQI, and the sum of non-zero coefficients K for all three layers under the CJT transmission scheme. NZ,i Recommend reporting instructions.

[0129] The sum of non-zero coefficient quantities K of all layers corresponding to all / each resource NZ Measure and report.

[0130] Operation 3: The network device receives CSI part I information based on the multipoint joint coherent transmission scheme (CJT) from the terminal, and the bit width of each reporting quantity is defined as shown in Table 15 below.

[0131] [Table 15] Operation 4: The network device ignores some CSI part I information according to the lowest priority of priority order 1 until the code rate of the CSI report is equal to or less than the code rate set by the upper layer parameter maxCodeRate.

[0132] Priority order 1: RI > TRP selection report result in CJT transmission scheme > SD beam combination report result in CJT transmission scheme > selection of all TRP non-zero coefficient sums.

[0133] As shown in Table 16 below.

[0134] [Table 16] Priority order 4: TRP selection report result in CJT transmission scheme>SD beam combination report result in CJT transmission scheme>RI>selection of the sum of non-zero coefficients of all TRPs.

[0135] As shown in Table 17 below.

[0136] [Table 17] Example 2: In Example 2, the network device side will be described. Example 2 corresponds to the case where the above-mentioned priority order 2 or 3 is adopted and CJT transmission scheme CSI information (i.e., at least one of the first CSI part I reporting area information and the second CSI part I reporting area information) is reported but single-point transmission scheme CSI information is not reported.

[0137] In Example 2, the operation of the network device is as follows:

[0138] Operation 1-2: On the network equipment side, a new upper layer is added as follows to configure K=4 CSI-RS resources based on CJT transmission, and the following spatial domain beam combination candidate configuration is configured by RRC. For example, taking the following table as an example, there are a total of 8 types of candidate beam quantity combination configuration methods (N l = 8) as shown in Table 18.

[0139] [Table 18] Operation 2: The terminal receives the resources for measuring the four CSI-RS, and calculates and reports the CSI part I information.

[0140] By measuring channel information such as large-scale RSRP, the first, second, and fourth points are selected and determined as the optimal transmission point / CSI-RS resource selection results.

[0141] Among them, the TRP / CSI-RS resource selection report result in the CJT transmission scheme is 1101.

[0142] The terminal side receives the resources for measuring the three selected CSI-RSs mentioned above and recommends reporting SD-para-combination#5, i.e., 101, which is one spatial domain joint beam quantity recommendation result (result of logarithm).

[0143] Among them, the spatial domain joint beam quantity recommendation result for CJT transmission scheme is N l Among them, N l ≧1 is the SD beam quantity combination candidate setting, which may be set by higher layer signaling.

[0144] Optionally, N l When = 1, the terminal does not need to report the spatial domain joint beam quantity recommendation result.

[0145] The terminal side receives the resources for jointly measuring the above-mentioned three selected CSI-RSs, and calculates RI=2, CQI, and the sum of non-zero coefficients K for all three layers under the CJT transmission scheme. NZ,i Recommend reporting instructions.

[0146] The sum of non-zero coefficient quantities K of all layers corresponding to all / each resource NZ Measure and report.

[0147] Operation 3: The network device receives CSI part I information based on the multipoint joint coherent transmission scheme (CJT) from the terminal, and the bit width of each reporting quantity is defined as shown in Table 19 below.

[0148] [Table 19] Optionally, the sum of all non-zero coefficients in each layer, K NZ,m The constraint that NZ,1 =···=K NZ,m The new addition of will further reduce reporting overhead.

[0149] In operation 3, the bit width of each report amount is defined as shown in Table 20 below.

[0150] [Table 20] Operation 4: The network device omits some CSI part I information according to the lowest priority of priority order 2 or 3 until the code rate of the CSI report is equal to or less than the code rate set by the upper layer parameter maxCodeRate.

[0151] Priority order 2: RI > TRP selection report results in CJT transmission scheme > SD beam combination report results in CJT transmission scheme > selection of non-zero coefficient sum of TRP 1 > selection of non-zero coefficient sum of TRP 2 > selection of non-zero coefficient sum of TRP 4.

[0152] Among them, K NZ,i is the sum of non-zero coefficients of all layers corresponding to (associated with) the i-th CSI-RS resource in the bitmap with a value of '1', and K NZ,i The reporting overhead is

[0153]

number

[0154] The priority order 2 is as shown in Table 21 below.

[0155] [Table 21] Priority order 3: Reported results of TRP selection in CJT transmission scheme > Reported results of SD beam combination in CJT transmission scheme > RI > Selection of non-zero coefficient sum of TRP 1 > Selection of non-zero coefficient sum of TRP 2 > ··· > Selection of non-zero coefficient sum of TRP M.

[0156] Among them, the TRP selection report results / SD beam combination report results for the CJT transmission scheme are the same as in Example 1.

[0157] Among them, K NZ,i is the sum of non-zero coefficients of all layers corresponding to (associated with) the i-th CSI-RS resource in the bitmap with a value of '1', and K NZ,i The reporting overhead is

[0158]

number

[0159] Optionally, the sum of all non-zero coefficients in each layer, K NZ,m The constraint that NZ,1 =···=K NZ,m Adding a new one can save reporting overhead.

[0160] The priority order 3 is as shown in Table 22 below.

[0161] [Table 22] Example 3: Example 3 will be explained from the network device side. Example 3 corresponds to a case where the above-mentioned priority order 1 or 4 is adopted, and where CJT transmission scheme CSI information (i.e., at least one of first CSI part I reporting area information and second CSI part I reporting area information) is reported, but single-point transmission scheme CSI information is not reported.

[0162] In Example 3, the operation of the network device is as follows:

[0163] Operation 1-2: The network equipment side sets X=2 by adding a new upper layer as follows, that is, the terminal side needs to report CSI information under the CJT transmission scheme + 2 single-point-based transmission scheme CSI information.

[0164] Operation 1-2: On the network equipment side, a new upper layer is added as follows to configure K=4 CSI-RS resources based on CJT transmission, and the following spatial domain beam combination candidate configuration is configured in RRC. For example, taking the following table as an example, there are a total of 8 types of candidate beam quantity combination configuration methods (N l = 8) as shown in Table 23.

[0165] [Table 23] Operation 2: The terminal side receives the resources to measure the four CSI-RS, and calculates and reports the CSI part I information under the CJT transmission scheme.

[0166] By measuring channel information such as large-scale RSRP, the first, second, and fourth selections are determined as the optimal transmission point / CSI-RS resource selection results, among which, the TRP / CSI-RS resource selection report result in the CJT transmission scheme is 1101.

[0167] The terminal side receives the resources for measuring the above-mentioned three selected CSI-RSs and recommends reporting one spatial domain joint beam quantity recommendation result (result of logarithm), SD-para-combination #5, i.e., 101. Among them, the spatial domain joint beam quantity recommendation result in the CJT transmission scheme is N l Among them, N l ≥ 1 is the SD beam number combination candidate setting, which may be configured by higher layer signaling. Optionally, N l When = 1, the terminal does not need to report the spatial domain joint beam quantity recommendation result.

[0168] The terminal side receives the resources for jointly measuring the above-mentioned three selected CSI-RSs, and calculates RI=2, CQI, and the sum of non-zero coefficients K for all three layers under the CJT transmission scheme. NZ,i Recommend reporting instructions.

[0169] The sum of non-zero coefficient quantities K of all layers corresponding to all / each resource NZ Measure and report.

[0170] Operation 3: The network device receives CSI part I information based on the multipoint joint coherent transmission scheme (CJT) from the terminal, where the bit width of each reporting quantity is defined as shown in Table 24.

[0171] [Table 24] In operation 3 of Example 3, the following operations are further performed:

[0172] The network device determines the measurement and reporting of X single-point measurement-based CSI information according to one of the following methods: Method 1: The two pieces of report information are measurement information corresponding to (associated with) the two previous CSI-RSs among resources 1, 2, and 4; Method 2: The terminal reports the correspondence (association) relationship between two and K CSI-RS resources, for example, 1001, which indicates that the terminal selects the first and fourth CSI-RS resources from 1, 2, 3, and 4 to report a single-point transmission scheme; and Method 3: The terminal reports the correspondence (association) relationship between X and M CSI-RS resources, for example, 101, which indicates that the terminal selects the first and fourth CSI-RS resources from 1, 2, and 4 to report a single-point transmission scheme.

[0173] The network equipment side receives CSI part I information based on a multipoint-to-single point transmission scheme from the terminal side, and the bit width of each of the X CSIs is defined as shown in Table 25 below.

[0174] [Table 25] By newly adding that the RI in the CSI information of the CJT joint transmission scheme and the single-point transmission scheme is the same, CSI information of multiple transmission schemes may be reported, and in this case, the bit width of each of the X CSIs is defined as shown in Table 26 below.

[0175] [Table 26] Operation 4: The terminal device determines to ignore some CSI part I information according to priority order 1 until the code rate of the CSI report is equal to or less than the code rate set by the upper layer parameter maxCodeRate.

[0176] Priority order 1: RI > TRP selection report result in CJT transmission scheme > SD beam combination report result in CJT transmission scheme > selection of all TRP non-zero coefficient sums.

[0177] Priority 1 is as shown in Table 27 below.

[0178] [Table 27] Priority order 4: TRP selection report result in CJT transmission scheme>SD beam combination report result in CJT transmission scheme>RI>selection of the sum of non-zero coefficients of all TRPs.

[0179] The priority order 4 is as shown in Table 28 below.

[0180] [Table 28] Example 4: Example 4 will be explained from the network device side. Example 4 corresponds to a case where the above-mentioned priority order 2 or 3 is adopted, and where CJT transmission scheme CSI information (i.e., at least one of first CSI part I reporting area information and second CSI part I reporting area information) is reported, and single-point transmission scheme CSI information is reported.

[0181] In Example 4, the operation of the network device is as follows:

[0182] Operation 1-2: The network equipment side sets X=2 by adding a new upper layer as follows, that is, the terminal side needs to report CSI information under the CJT transmission scheme + 2 single-point-based transmission scheme CSI information.

[0183] Operation 1-2: On the network equipment side, a new upper layer is added as follows to configure K=4 CSI-RS resources based on CJT transmission, and the following spatial domain beam combination candidate configuration is configured in RRC. For example, taking the following table as an example, there are a total of 8 types of candidate beam quantity combination configuration methods (N l = 8) as shown in Table 29 below.

[0184] [Table 29] Operation 2: The terminal receives the resources to measure the four CSI-RS, and calculates and reports the CSI part I information under the CJT transmission scheme.

[0185] By measuring channel information such as large-scale RSRP, the first, second, and fourth selections are determined as the optimal transmission point / CSI-RS resource selection results, among which, the TRP / CSI-RS resource selection report result in the CJT transmission scheme is 1101.

[0186] The terminal side receives the resources for measuring the above-mentioned three selected CSI-RSs and recommends reporting one spatial domain joint beam quantity recommendation result (result of logarithm), SD-para-combination #5, i.e., 101. Among them, the spatial domain joint beam quantity recommendation result in the CJT transmission scheme is N l Among them, N l ≧1 is the SD beam quantity combination candidate setting, which may be set by higher layer signaling.

[0187] Optionally, when Nl=1, the terminal may not report the spatial domain joint beam quantity recommendation result.

[0188] The terminal side receives the resources for jointly measuring the above-mentioned three selected CSI-RSs, and calculates RI=2, CQI, and the sum of non-zero coefficients K for all three layers under the CJT transmission scheme. NZ,i Recommend reporting instructions.

[0189] The sum of non-zero coefficient quantities K of all layers corresponding to all / each resource NZ Measure and report.

[0190] Operation 3: The network device receives CSI part I information based on the multipoint joint coherent transmission scheme (CJT) from the terminal, and the bit width of each reporting quantity is defined as shown in Table 30 below.

[0191] [Table 30] Operation 3: The network device side receives single-point transmission-based CSI part I information from the terminal side, which includes CSI information corresponding to X=2 CSI-RSs.

[0192] The network device determines the measurement and reporting of X single-point measurement-based CSI information according to one of the following methods: Method 1: The two pieces of report information are measurement information corresponding to (associated with) the first two CSI-RSs among the selected resources 1, 2, and 4; Method 2: The terminal additionally reports the correspondence (association) relationship between two and K CSI-RS resources, for example, 1001, which indicates that the terminal selects the first and fourth CSI-RS resources from 1, 2, 3, and 4 to report a single-point transmission scheme; and Method 3: The terminal additionally reports the correspondence (association) relationship between X and M CSI-RS resources, for example, 101, which indicates that the terminal selects the first and fourth CSI-RS resources from 1, 2, and 4 to report a single-point transmission scheme.

[0193] The network device side receives CSI part I information based on a multipoint-to-single point transmission scheme from the terminal side, and the bit width of each of the X CSIs is defined as shown in Table 31.

[0194] [Table 31] By newly adding that the RI in the CSI information of the CJT joint transmission scheme and the single-point transmission scheme is the same, CSI information of multiple transmission schemes may be reported, and in this case, the bit width of each of the X CSIs is defined as shown in Table 32 below.

[0195] [Table 32] Operation 4: The terminal device drops some CSI part I information starting from the lowest priority according to priority order 2 or 3 until the "code rate of the CSI report≦the code rate set by the upper layer parameter maxCodeRate".

[0196] Priority order 2: RI > TRP selection report results in CJT transmission scheme > SD beam combination report results in CJT transmission scheme > selection of non-zero coefficient sum of TRP 1 > selection of non-zero coefficient sum of TRP 2 > selection of non-zero coefficient sum of TRP 4.

[0197] Among them, K NZ,i is the sum of non-zero coefficients of all layers corresponding to (associated with) the i-th CSI-RS resource in the bitmap with a value of '1', and K NZ,i The reporting overhead is

[0198]

number

[0199] Priority order 2 is as shown in Table 33.

[0200] [Table 33] Priority order 3: Reported results of TRP selection in CJT transmission scheme > Reported results of SD beam combination in CJT transmission scheme > RI > Selection of non-zero coefficient sum of TRP 1 > Selection of non-zero coefficient sum of TRP 2 > ··· > Selection of non-zero coefficient sum of TRP M.

[0201] Among them, the TRP selection report results / SD beam combination report results for the CJT transmission scheme are the same as those for Scheme 1.

[0202] Among them, K NZ,iis the sum of non-zero coefficients of all layers corresponding to (associated with) the i-th CSI-RS resource in the bitmap with a value of '1', and K NZ,i The reporting overhead is

[0203]

number

[0204] Optionally, the sum of all non-zero coefficients in each layer, K NZ,m The restriction that NZ,1 =···=K NZ,m The new addition of will further reduce reporting overhead.

[0205] The priority order 3 is as shown in Table 34 below.

[0206] [Table 34] According to an embodiment of the first aspect of the present invention, a network device can determine part I reporting field information and bit width in a CSI reporting field based on CJT joint transmission, and can accurately receive and demodulate part I information based on a joint coherent transmission scheme. Furthermore, when a code rate is higher than a predetermined maximum code rate, the network device can ignore some of the report information and reduce the code rate according to the present invention, thereby ensuring accurate reception and demodulation of some CSI information, improving the accuracy and completeness of measurement reports, and ensuring data transmission performance.

[0207] <Example of the second aspect> Regarding at least the same problem as the embodiment of the first aspect, an embodiment of the second aspect of the present invention provides a method for receiving channel state information, which is applied to a network device and corresponds to the embodiment of the first aspect.

[0208] 5 is a diagram illustrating a method for receiving channel state information according to an embodiment of the second aspect. As shown in FIG. 5, the method for receiving channel state information includes the following operations (steps): Operation 501: A network device sends a first channel condition reference signal (CSIRS) resource configuration to a terminal device, the first CSIRS resource configuration including at least a first resource set, the first resource set including K CSIRS resources, where K is a natural number greater than or equal to 2; and Operation 502: A network device receives CSI generated by the terminal device based on a CSI reporting priority.

[0209] In some embodiments, the CSI reporting priority is determined based on at least first channel state information part 1 (CSI part I) reporting field information and / or second CSI part I reporting field information, where the first CSI part I reporting field information is used to determine K resource selection results and the second CSI part I reporting field information is used to determine spatial-domain beam selection results.

[0210] In some embodiments, the CSI received by the network device is CSI after the terminal device has omitted at least some information based on the CSI reporting priority.

[0211] In some embodiments, the bit width of the first CSI part I reporting area information and / or the second CSI part I reporting area information is determined based on bit number information of a predetermined value.

[0212] In some embodiments, the channel quality indication (CQI) received by the network device from the terminal device is calculated by the terminal device based on at least M CSIRS resources, and the M CSIRS resources relate to the K CSIRS resources.

[0213] In some embodiments, the M CSIRS resources relate to the K CSIRS resources, including: The M CSIRS resources are M of the K CSIRS resources.

[0214] In some embodiments, the M CSIRS resources are the following of the K CSIRS resources: a first number of resources before a reference signal received power (RSRP) maximum, the first number being less than or equal to M; and / or a second quantity of resources whose RSRP is equal to or greater than a predetermined threshold, the second quantity being less than or equal to M; and / or a third number of resources before a minimum block error rate (BLER), the third number being less than or equal to M; and / or A fourth quantity of resources having a BLER less than or equal to a predetermined threshold, the fourth quantity being less than or equal to M.

[0215] In some embodiments, the CSI reporting priority is further determined based on third CSI part I reporting field information, and the third CSI part I reporting field information is used to determine an indication of a sum of non-zero coefficients of all M layers.

[0216] In some embodiments, the CSI reporting priority is further determined based on fourth CSI part I reporting field information, which is used to determine an indication of a sum of non-zero coefficients of all layers for the M resources arranged according to a predetermined order.

[0217] In some embodiments, the CSI reporting priorities are sequentially arranged from high to low as follows: Rank Indicator (RI), First CSI part I reporting area information, Second CSI part I reporting area information, Third CSI part I reporting area information; or Rank Indicator (RI), first CSI part I reporting area information, second CSI part I reporting area information, fourth CSI part I reporting area information; or First CSI part I reporting area information, second CSI part I reporting area information, rank indication (RI), fourth CSI part I reporting area information; or First CSI part I reporting area information, second CSI part I reporting area information, rank indicator (RI), third CSI part I reporting area information is.

[0218] In some embodiments, the network device further receives fifth CSI part I reporting domain information for each of the X CSIRS resource bases of the terminal device transmission, where 1≦X≦M.

[0219] In some embodiments, X is set by higher layer signaling or is predefined.

[0220] In some embodiments, the X fifth CSI part I reporting field information have the same RI value.

[0221] In some embodiments, where X=M, the first portion information of the X fifth CSI part I reporting area information is measurements corresponding to all X channel state information reference signals (CSI-RS) among M, where the i-th CSI corresponds to the i-th CSI-RS resource in the bitmap with a predetermined value; or When X≦M, the first portion information of the X number of fifth CSI part I reporting area information is measurement information corresponding to (associated with) the previous X CSI-RSs among M; or The terminal device reports a correspondence relationship between the X pieces of first partial information of the fifth CSI part I reporting area information and K CSI-RS resources, among which the K CSI-RS resources are included in a non-zero power channel state information reference signal (NZP-CSI-RS) resource set; or The terminal device reports a correspondence (association) relationship between the X pieces of first partial information of the fifth CSI part I reporting area information and the M pieces of CSI-RS resources.

[0222] In some embodiments, the network device sends higher layer signaling configuration to the terminal device, and the higher layer signaling configuration is used to configure the CSI measurement scheme to be mode 1 or mode 2.

[0223] <Example of the third aspect> Regarding at least the same problem as the embodiment of the first aspect, an embodiment of a third aspect of the present invention provides a channel state information transmitting device, which is applied to a terminal device and corresponds to the embodiment of the first aspect.

[0224] 6 is a diagram illustrating a channel state information transmitting device 600 according to an embodiment of the third aspect. As shown in FIG. 6, the channel state information transmitting device 600 includes a first receiver 601, a first processor 602, and a first transmitter 603.

[0225] In some embodiments, the first receiver 601 receives a first channel condition reference signal (CSIRS) resource configuration from a network device, the first CSIRS resource configuration including at least a first resource set, the first resource set including K CSIRS resources, where K is a natural number greater than or equal to 2.

[0226] The first processor 602 determines a CSI reporting priority based on at least first channel state information part 1 (CSI part I) reporting field information and / or second CSI part I reporting field information, where the first CSI part I reporting field information is used to determine K resource selection results and the second CSI part I reporting field information is used to determine a spatial-domain beam selection result, and the first processor 602 further generates CSI based on at least the CSI reporting priority.

[0227] The first processor generating CSI based on at least the CSI reporting priority includes: The first processor omits at least a portion of the CSI based on the CSI reporting priority.

[0228] In some embodiments, the first processor determines the bit width of the first CSI part I reporting area information and / or the second CSI part I reporting area information based on bit number information of a predetermined value.

[0229] In some embodiments, the first processor calculates a channel quality indication (CQI) based on at least M CSIRS resources, the M CSIRS resources relating to the K CSIRS resources.

[0230] In some embodiments, the M CSIRS resources relate to the K CSIRS resources, including: The M CSIRS resources are M of the K CSIRS resources.

[0231] In some embodiments, the M CSIRS resources are the following of the K CSIRS resources: a first number of resources before a reference signal received power (RSRP) maximum, the first number being less than or equal to M; and / or a second quantity of resources whose RSRP is equal to or greater than a predetermined threshold, the second quantity being less than or equal to M; and / or a third number of resources before a minimum block error rate (BLER), the third number being less than or equal to M; and / or A fourth quantity of resources having a BLER less than or equal to a predetermined threshold, the fourth quantity being less than or equal to M.

[0232] In some embodiments, the first processor further determines a CSI reporting priority based on third CSI part I reporting field information, and the third CSI part I reporting field information is used to determine an indication of a sum of non-zero coefficients of all M layers.

[0233] In some embodiments, the first processor further determines a CSI reporting priority based on fourth CSI part I reporting field information, which is used to determine an indication of a sum of non-zero coefficients of all layers for the M resources arranged according to a predetermined order.

[0234] In some embodiments, the CSI reporting priorities determined by the first processor are sequentially arranged from high to low as follows: Rank Indicator (RI), First CSI part I reporting area information, Second CSI part I reporting area information, Third CSI part I reporting area information; or Rank Indicator (RI), first CSI part I reporting area information, second CSI part I reporting area information, fourth CSI part I reporting area information; or First CSI part I reporting area information, second CSI part I reporting area information, rank indication (RI), fourth CSI part I reporting area information; or First CSI part I reporting area information, second CSI part I reporting area information, rank indicator (RI), third CSI part I reporting area information is.

[0235] In some embodiments, the first transmitter of the device transmits fifth CSI part I reporting domain information for each of X CSIRS resource bases, where 1≦X≦M.

[0236] In some embodiments, X is set by higher layer signaling or is predefined.

[0237] In some embodiments, the X fifth CSI part I reporting field information have the same RI value.

[0238] In some embodiments, when X=M, the first partial information of the X fifth CSI part I reporting area information is measurement information corresponding to (associated with) all X channel state information reference signals (CSI-RS) among M, in which the i-th CSI corresponds to (associated with) the i-th CSI-RS resource in the bitmap, the CSI-RS resource having a predetermined value; or When X≦M, the first portion information of the X number of fifth CSI part I reporting area information is measurement information corresponding to (associated with) the previous X CSI-RSs among M; or The terminal device reports a correspondence relationship between the X pieces of first partial information of the fifth CSI part I reporting area information and K CSI-RS resources, among which the K CSI-RS resources are included in a non-zero power channel state information reference signal (NZP-CSI-RS) resource set; or The terminal device reports a correspondence (association) relationship between the X pieces of first partial information of the fifth CSI part I reporting area information and the M pieces of CSI-RS resources.

[0239] In some embodiments, the CSI measurement scheme established by the first processor through higher layer signaling configuration is mode 1 or mode 2, thereby determining the reporting and measurement of the CSI information.

[0240] <Example of the fourth aspect> Regarding at least the same problem as the embodiment of the second aspect, an embodiment of a fourth aspect of the present invention provides a receiving device for channel state information, which is applied to a network device and corresponds to the embodiment of the second aspect.

[0241] 7 is a diagram illustrating a channel state information transmitting device according to an embodiment of the fourth aspect. As shown in FIG. 7, the channel state information receiving device 700 includes a second receiver 701 and a second transmitter 702.

[0242] The second transmitter 702 transmits a first channel state reference signal (CSIRS) resource configuration to the terminal device, the first CSIRS resource configuration including at least a first resource set, the first resource set including K CSIRS resources, where K is a natural number greater than or equal to 2.

[0243] The second receiver 701 receives the CSI generated by the terminal device based on the CSI reporting priority.

[0244] In some embodiments, the CSI reporting priority is determined based on at least first channel state information part 1 (CSI part I) reporting field information and / or second CSI part I reporting field information, where the first CSI part I reporting field information is used to determine K resource selection results and the second CSI part I reporting field information is used to determine spatial-domain beam selection results.

[0245] In some embodiments, the CSI received by the second receiver is CSI after the terminal device omits at least some information based on the CSI reporting priority.

[0246] In some embodiments, the bit width of the first CSI part I reporting area information and / or the second CSI part I reporting area information is determined based on bit number information of a predetermined value.

[0247] In some embodiments, the channel quality indication (CQI) received by the second receiver from the terminal device is calculated by the terminal device based on at least M CSIRS resources, and the M CSIRS resources relate to the K CSIRS resources.

[0248] In some embodiments, the M CSIRS resources relate to the K CSIRS resources, including: The M CSIRS resources are M of the K CSIRS resources.

[0249] In some embodiments, the M CSIRS resources are the following of the K CSIRS resources: a first number of resources before a reference signal received power (RSRP) maximum, the first number being less than or equal to M; and / or a second quantity of resources whose RSRP is equal to or greater than a predetermined threshold, the second quantity being less than or equal to M; and / or a third number of resources with a minimum block error rate (BLER), the third number being less than or equal to M; and / or A fourth quantity of resources having a BLER less than or equal to a predetermined threshold, the fourth quantity being less than or equal to M.

[0250] In some embodiments, the CSI reporting priority is further determined based on third CSI part I reporting field information, and the third CSI part I reporting field information is used to determine an indication of a sum of non-zero coefficients of all M layers.

[0251] In some embodiments, the CSI reporting priority is further determined based on fourth CSI part I reporting field information, which is used to determine an indication of a sum of non-zero coefficients of all layers for the M resources arranged according to a predetermined order.

[0252] In some embodiments, the CSI reporting priorities are sequentially arranged from high to low as follows: Rank Indicator (RI), First CSI part I reporting area information, Second CSI part I reporting area information, Third CSI part I reporting area information; or Rank Indicator (RI), first CSI part I reporting area information, second CSI part I reporting area information, fourth CSI part I reporting area information; or First CSI part I reporting area information, second CSI part I reporting area information, rank indication (RI), fourth CSI part I reporting area information; or First CSI part I reporting area information, second CSI part I reporting area information, rank indicator (RI), third CSI part I reporting area information is.

[0253] In some embodiments, the network device further receives fifth CSI part I reporting domain information for each of the X CSIRS resource bases of the terminal device transmission, where 1≦X≦M.

[0254] In some embodiments, X is set by higher layer signaling or is predefined.

[0255] In some embodiments, the X fifth CSI part I reporting field information have the same RI value.

[0256] In some embodiments, where X=M, the first portion information of the X fifth CSI part I reporting area information is measurements corresponding to all X channel state information reference signals (CSI-RS) among M, where the i-th CSI corresponds to the i-th CSI-RS resource in the bitmap with a predetermined value; or When X≦M, the first portion information of the X number of fifth CSI part I reporting area information is measurement information corresponding to (associated with) the previous X CSI-RSs among M; or The terminal device reports a correspondence relationship between the X pieces of first partial information of the fifth CSI part I reporting area information and K CSI-RS resources, among which the K CSI-RS resources are included in a non-zero power channel state information reference signal (NZP-CSI-RS) resource set; or The terminal device reports a correspondence (association) relationship between the X pieces of first partial information of the fifth CSI part I reporting area information and the M pieces of CSI-RS resources.

[0257] In some embodiments, the second transmitter transmits higher layer signaling configuration to the terminal device, and the higher layer signaling configuration is used to configure the CSI measurement scheme to be mode 1 or mode 2.

[0258] <Example of the fifth aspect> In an embodiment of a fifth aspect of the present invention, there is provided a communication system, which may include a network device and a terminal device.

[0259] 8 is a diagram illustrating a terminal device according to an embodiment of the fifth aspect. As shown in FIG. 8, the terminal device 800 (e.g., corresponding to the terminal device 202 in FIG. 2) may include a processor 810 and a memory 820, where the memory 820 stores data and programs and is connected to the processor 810. Note that this diagram is merely illustrative, and other types of structures may be used to supplement or replace the structures to achieve telecommunications or other functions.

[0260] For example, the processor 810 may be configured to execute a program to implement the method in the embodiment of the first aspect.

[0261] As shown in Fig. 8, the terminal device 800 may further include a communication module 830, an input unit 840, a display 880, a power supply 860, etc. The functions of the above-mentioned components are the same as those of the prior art, and therefore detailed descriptions thereof will be omitted here. It should be noted that the terminal device 800 does not need to include all the components shown in Fig. 8, i.e., the above-mentioned components are not essential. The terminal device 800 may also include components not shown in Fig. 8, and reference can be made to the prior art for such components.

[0262] 9 is a diagram illustrating a network device according to an embodiment of the third aspect. As shown in FIG. 9, a network device 900 (e.g., corresponding to the network device 201 in FIG. 2) may include a processor 910 (e.g., a central processing unit (CPU)) and a memory 920, which is connected to the processor 910. The memory 920 can store various data and can also store a program 930 for information processing, and can execute the program 930 under the control of the processor 910.

[0263] For example, the processor 910 may be configured to execute a program to implement the operation of the network device in the method according to the embodiment of the first aspect.

[0264] 9, the network device 900 may further include a transceiver 940, an antenna 950, etc., and the functions of the above-mentioned components are the same as those of the prior art, so detailed description thereof will be omitted here. Note that the network device 900 does not need to include all the components shown in Fig. 9. The network device 900 may further include components not shown in Fig. 9, but reference can be made to the prior art for this information.

[0265] An embodiment of the present invention further provides a computer program, which, when executed by a terminal device, causes the terminal device to perform the method described in the embodiment of the first aspect.

[0266] An embodiment of the present invention further provides a storage medium storing a computer program, wherein the computer program causes a terminal device to perform the method described in the embodiment of the first aspect.

[0267] The above-described apparatus and methods may be realized by software or hardware, or by a combination of hardware and software. The present invention also relates to a computer-readable program as described below, which, when executed by a logic component, causes the logic component to realize the above-described apparatus or component, or to perform each of the above-described methods or steps. The logic component may be, for example, an FPGA (Field Programmable Gate Array), a microprocessor, or a processing unit used in a computer. The present invention also relates to a storage medium, such as a hard disk, magnetic disk, optical hard disk, DVD, or flash memory, that stores the above-described program.

[0268] Furthermore, one or more combinations of the functional blocks illustrated in the figures and / or one or more combinations of the functional blocks may be implemented as 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 component, a discrete gate or transistor logic component, a discrete hardware assembly, or any other suitable combination for performing the functions described herein. Also, one or more combinations of the functional blocks illustrated in the figures and / or one or more combinations of the functional blocks may be further implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors communicatively coupled with a DSP, or any other configuration.

[0269] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and any modifications to the present invention that do not depart from the spirit of the present invention fall within the technical scope of the present invention.

[0270] Furthermore, with respect to the above-mentioned embodiments, the following supplementary notes are disclosed.

[0271] <Method on the terminal device side> (Appendix 1) A method for transmitting channel state information, applied to a terminal device, the method comprising: The terminal device receives a first channel condition reference signal (CSIRS) resource configuration from a network device, the first CSIRS resource configuration including at least a first resource set, the first resource set including K CSIRS resources, where K is a natural number greater than or equal to 2; The terminal device determines a CSI reporting priority based on at least first channel state information part 1 (CSI part I) reporting field information and / or second CSI part I reporting field information, where the first CSI part I reporting field information is used to determine K resource selection results, and the second CSI part I reporting field information is used to determine spatial domain beam selection results; and The method includes the terminal device generating CSI based on at least the CSI reporting priority.

[0272] (Appendix 2) 2. The method of claim 1, comprising: The terminal device generating CSI based on at least the CSI reporting priority, The method includes the terminal device omitting at least a portion of the CSI based on the CSI reporting priority.

[0273] (Appendix 3) 2. The method of claim 1, comprising: The terminal device determines the bit width of the first CSI part I reporting area information and / or the second CSI part I reporting area information based on bit number information of a predetermined value.

[0274] (Appendix 4) 2. The method of claim 1, comprising: The terminal device calculates a channel quality indication (CQI) based on at least M CSIRS resources, the M CSIRS resources relating to the K CSIRS resources.

[0275] (Appendix 5) The method according to any one of appendices 1 to 4, The M CSIRS resources relate to the K CSIRS resources, The M CSIRS resources are M of the K CSIRS resources.

[0276] (Appendix 6) 6. The method of claim 5, The M CSIRS resources are the following of the K CSIRS resources: a first number of resources before a reference signal received power (RSRP) maximum, the first number being less than or equal to M; and / or a second quantity of resources whose RSRP is equal to or greater than a predetermined threshold, the second quantity being less than or equal to M; and / or a third number of resources with a minimum block error rate (BLER), the third number being less than or equal to M; and / or A fourth quantity of resources having a BLER below a predetermined threshold, the fourth quantity being M or less.

[0277] (Appendix 7) 5. The method of claim 4, The terminal device further determines a CSI reporting priority based on third CSI part I reporting field information, and the third CSI part I reporting field information is used to determine an indication of a sum of non-zero coefficients of all M layers.

[0278] (Appendix 8) 8. The method according to claim 4 or 7, The terminal device further determines a CSI reporting priority based on fourth CSI part I reporting field information, and the fourth CSI part I reporting field information is used to determine an indication of a sum of non-zero coefficients of all layers for the M resources arranged according to a predetermined order.

[0279] (Appendix 9) 9. The method of claim 8, The CSI reporting priorities determined by the terminal devices are sequentially arranged from high to low as follows: Rank Indicator (RI), First CSI part I reporting area information, Second CSI part I reporting area information, Third CSI part I reporting area information; or Rank Indicator (RI), first CSI part I reporting area information, second CSI part I reporting area information, fourth CSI part I reporting area information; or First CSI part I reporting area information, second CSI part I reporting area information, rank indication (RI), fourth CSI part I reporting area information; or First CSI part I reporting area information, second CSI part I reporting area information, rank indicator (RI), third CSI part I reporting area information Something that is.

[0280] (Appendix 10) The method according to any one of appendices 1 to 9, The terminal device further transmits fifth CSI part I reporting domain information for each of X CSIRS resource bases, where 1≦X≦M.

[0281] (Appendix 11) 11. The method of claim 10, X may be set by higher layer signaling or may be predefined.

[0282] (Appendix 12) 11. The method of claim 10, The RI values ​​of the X fifth CSI part I reporting field information are the same.

[0283] (Appendix 13) 11. The method of claim 10, When X=M, the first partial information of the X fifth CSI part I reporting area information is measurement information corresponding to (associated with) all X channel state information reference signals (CSI-RSs) among M, in which the i-th CSI corresponds to (associated with) the i-th CSI-RS resource in the bitmap, the CSI-RS resource having a predetermined value; or If X≦M, a first portion of the X fifth CSI part I reporting field information pieces being measurement information corresponding to (associated with) the previous X CSI-RSs among M; or The terminal device reports a correspondence relationship between the X pieces of first partial information of the fifth CSI part I reporting area information and K CSI-RS resources, among which the K CSI-RS resources are included in a non-zero power channel state information reference signal (NZP-CSI-RS) resource set; or The terminal device reports a correspondence (association) relationship between the first part information of the X pieces of fifth CSI part I reporting area information and M pieces of CSI-RS resources.

[0284] (Appendix 14) The method according to any one of appendices 1 to 13, The CSI measurement scheme configured by the terminal device based on higher layer signaling configuration is mode 1 (mode 1) or mode 2 (mode 2), thereby determining the reporting and measurement of the CSI information.

[0285] <Network device side method> (Appendix 1) 1. A method for receiving channel state information, applied to a network device, the method comprising: The network device sends a first channel condition reference signal (CSIRS) resource configuration to the terminal device, the first CSIRS resource configuration including at least a first resource set, the first resource set including K CSIRS resources, where K is a natural number greater than or equal to 2; and The network device receives CSI generated by the terminal device based on a CSI reporting priority; The CSI reporting priority is determined based on at least first channel state information part 1 (CSI part I) reporting field information and / or second CSI part I reporting field information, the first CSI part I reporting field information is used to determine K resource selection results, and the second CSI part I reporting field information is used to determine spatial domain beam selection results.

[0286] (Appendix 2) 2. The method of claim 1, comprising: The CSI received by the network device is CSI after the terminal device omits at least some information based on the CSI reporting priority.

[0287] (Appendix 3) 2. The method of claim 1, comprising: The bit width of the first CSI part I reporting area information and / or the second CSI part I reporting area information is determined based on bit number information of a predetermined value.

[0288] (Appendix 4) 2. The method of claim 1, comprising: The channel quality indication (CQI) received by the network device from the terminal device is calculated by the terminal device based on at least M CSIRS resources, and the M CSIRS resources relate to the K CSIRS resources.

[0289] (Appendix 5) The method according to any one of appendices 1 to 4, The M CSIRS resources relate to the K CSIRS resources including: The M CSIRS resources are M of the K CSIRS resources.

[0290] (Appendix 6) 6. The method of claim 5, The M CSIRS resources are the following of the K CSIRS resources: a first number of resources before a reference signal received power (RSRP) maximum, the first number being less than or equal to M; and / or a second quantity of resources whose RSRP is equal to or greater than a predetermined threshold, the second quantity being less than or equal to M; and / or a third number of resources with a minimum block error rate (BLER), the third number being less than or equal to M; and / or A fourth quantity of resources having a BLER below a predetermined threshold, the fourth quantity being M or less.

[0291] (Appendix 7) 5. The method of claim 4, The CSI reporting priority is further determined based on third CSI part I reporting field information, and the third CSI part I reporting field information is used to determine an indication of a sum of non-zero coefficients of all M layers.

[0292] (Appendix 8) 8. The method according to claim 4 or 7, The CSI reporting priority is further determined based on fourth CSI part I reporting field information, and the fourth CSI part I reporting field information is used to determine an indication of a sum of non-zero coefficients of all layers for the M resources arranged according to a predetermined order.

[0293] (Appendix 9) 9. The method of claim 8, The CSI reporting priorities are sequentially arranged from high to low as follows: Rank Indicator (RI), First CSI part I reporting area information, Second CSI part I reporting area information, Third CSI part I reporting area information; or Rank Indicator (RI), first CSI part I reporting area information, second CSI part I reporting area information, fourth CSI part I reporting area information; or First CSI part I reporting area information, second CSI part I reporting area information, rank indication (RI), fourth CSI part I reporting area information; or First CSI part I reporting area information, second CSI part I reporting area information, rank indicator (RI), third CSI part I reporting area information Something that is.

[0294] (Appendix 10) The method according to any one of appendices 1 to 9, The network device further receives fifth CSI part I reporting area information for each of the X CSIRS resource bases transmitted by the terminal device, where 1≦X≦M.

[0295] (Appendix 11) 11. The method of claim 10, X may be set by higher layer signaling or may be predefined.

[0296] (Appendix 12) 11. The method of claim 10, The RI values ​​of the X fifth CSI part I reporting field information are the same.

[0297] (Appendix 13) 11. The method of claim 10, When X=M, the first partial information of the X fifth CSI part I reporting area information is measurement information corresponding to (associated with) all X channel state information reference signals (CSI-RSs) among M, in which the i-th CSI corresponds to (associated with) the i-th CSI-RS resource in the bitmap, the CSI-RS resource having a predetermined value; or If X≦M, a first portion of the X fifth CSI part I reporting field information pieces being measurement information corresponding to (associated with) the previous X CSI-RSs among M; or The terminal device reports a correspondence relationship between the X pieces of first partial information of the fifth CSI part I reporting area information and K CSI-RS resources, among which the K CSI-RS resources are included in a non-zero power channel state information reference signal (NZP-CSI-RS) resource set; or The terminal device reports a correspondence (association) relationship between the first part information of the X pieces of fifth CSI part I reporting area information and M pieces of CSI-RS resources.

[0298] (Appendix 14) The method according to any one of appendices 1 to 13, The network device sends an upper layer signaling configuration to the terminal device, and the upper layer signaling configuration is used to set the CSI measurement scheme to mode 1 or mode 2.

Claims

1. A channel state information transmitting device, applied to a terminal device, comprising: a first receiver for receiving a first channel condition reference signal (CSIRS) resource configuration from a network device, the first CSIRS resource configuration including at least a first resource set, the first resource set including K CSIRS resources, where K is a natural number greater than or equal to 2; and a first processor for determining a CSI reporting priority based on at least first channel state information part 1 (CSI part I) reporting area information and / or second CSI part I reporting area information, wherein the first CSI part I reporting area information is used to determine K resource selection results, and the second CSI part I reporting area information is used to determine a spatial domain beam selection result; The first processor further generates CSI based on at least the CSI reporting priority.

2. 10. The apparatus of claim 1, The first processor generating the CSI based on at least the CSI reporting priority, The apparatus includes the first processor omitting at least a portion of the CSI based on the CSI reporting priority.

3. 10. The apparatus of claim 1, The first processor determines a bit width of the first CSI part I reporting area information and / or the second CSI part I reporting area information based on bit number information of a predetermined value.

4. 10. The apparatus of claim 1, The apparatus, wherein the first processor calculates a channel quality indication (CQI) based on at least M CSI RS resources, the M CSI RS resources relating to the K CSI RS resources.

5. 10. The apparatus of claim 1, The M CSI RS resources relate to the K CSI RS resources. The apparatus, wherein the M CSI RS resources are M of the K CSI RS resources.

6. 6. The apparatus of claim 5, The M CSIRS resources are the following of the K CSIRS resources: a first number of resources before a maximum reference signal received power (RSRP), the first number being less than or equal to M; and / or a second quantity of resources with an RSRP greater than or equal to a predetermined threshold, the second quantity being less than or equal to M; and / or a third number of resources with a minimum block error rate (BLER), the third number being less than or equal to M; and / or a fourth quantity of resources having a BLER below a predetermined threshold, the fourth quantity being M or less.

7. 5. The apparatus of claim 4, the first processor further determines a CSI reporting priority based on third CSI part I reporting field information, and the third CSI part I reporting field information is used to determine an indication of a sum of non-zero coefficients of all M layers.

8. 5. The apparatus of claim 4, the first processor further determines a CSI reporting priority based on fourth CSI part I reporting field information, and the fourth CSI part I reporting field information is used to determine an indication of a sum of non-zero coefficients of all layers for M CSI RS resources arranged according to a predetermined order.

9. 9. The apparatus of claim 8, The CSI reporting priorities determined by the first processor are sequentially arranged from high to low as follows: Rank Indication (RI), First CSI part I reporting area information, Second CSI part I reporting area information, Third CSI part I reporting area information; or Rank Indication (RI), First CSI part I reporting area information, Second CSI part I reporting area information, Fourth CSI part I reporting area information; or First CSI part I reporting area information, second CSI part I reporting area information, rank indication (RI), fourth CSI part I reporting area information; or First CSI part I reporting area information, second CSI part I reporting area information, rank indication (RI), third CSI part I reporting area information That is, the device.

10. 1. An apparatus according to claim 1, The first processor determines the reporting and measurement of the CSI information by configuring the CSI measurement scheme to be mode 1 or mode 2 according to upper layer signaling configuration.

11. A channel state information receiving device applied to a network device, the device comprising: a second transmitter for transmitting a first channel state reference signal (CSIRS) resource configuration to a terminal device, the first CSIRS resource configuration including at least a first resource set, the first resource set including K CSIRS resources, where K is a natural number greater than or equal to 2; and a second receiver for receiving CSI generated by the terminal device based on a CSI reporting priority; the CSI reporting priority is determined based on at least first channel state information part 1 (CSI part I) reporting area information and / or second CSI part I reporting area information, the first CSI part I reporting area information is used to determine K resource selection results, and the second CSI part I reporting area information is used to determine a spatial domain beam selection result.

12. 12. The apparatus of claim 11, The CSI received by the second receiver is CSI after the terminal device omits at least some information based on the CSI reporting priority.

13. 12. The apparatus of claim 11, The bit width of the first CSI part I reporting area information and / or the second CSI part I reporting area information is determined based on bit number information of a predetermined value.

14. 12. The apparatus of claim 11, The channel quality indication (CQI) received by the second receiver from the terminal device is obtained by the terminal device calculating it based on at least M CSI RS resources, and the M CSI RS resources relate to the K CSI RS resources.

15. 10. The apparatus of claim 1, The M CSI RS resources relate to the K CSI RS resources. The apparatus, wherein the M CSI RS resources are M of the K CSI RS resources.

16. 6. The apparatus of claim 5, The M CSIRS resources are the following of the K CSIRS resources: a first number of resources before a maximum reference signal received power (RSRP), the first number being less than or equal to M; and / or a second quantity of resources with an RSRP greater than or equal to a predetermined threshold, the second quantity being less than or equal to M; and / or a third number of resources with a minimum block error rate (BLER), the third number being less than or equal to M; and / or a fourth quantity of resources having a BLER below a predetermined threshold, the fourth quantity being M or less.

17. 15. The apparatus of claim 14, The CSI reporting priority is further determined based on third CSI part I reporting field information, and the third CSI part I reporting field information is used to determine an indication of a non-zero coefficient sum of all M layers.

18. 15. The apparatus of claim 14, the CSI reporting priority is further determined based on fourth CSI part I reporting field information, and the fourth CSI part I reporting field information is used to determine an indication of a sum of non-zero coefficients of all layers for M resources arranged according to a predetermined order.

19. 19. The apparatus of claim 18, The CSI reporting priorities are sequentially arranged from high to low as follows: Rank Indication (RI), First CSI part I reporting area information, Second CSI part I reporting area information, Third CSI part I reporting area information; or Rank Indication (RI), First CSI part I reporting area information, Second CSI part I reporting area information, Fourth CSI part I reporting area information; or First CSI part I reporting area information, second CSI part I reporting area information, rank indication (RI), fourth CSI part I reporting area information; or First CSI part I reporting area information, second CSI part I reporting area information, rank indication (RI), third CSI part I reporting area information That is, the device.

20. 10. The apparatus of claim 1, The second transmitter transmits an upper layer signaling configuration to the terminal device, and the upper layer signaling configuration is used to set a CSI measurement scheme to be mode 1 (mode 1) or mode 2 (mode 2).

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