Information reporting, determination method and apparatus, terminal and network-side device

Abstract

The application discloses a kind of information reporting, determining method, device, terminal and network side equipment, belong to communication technical field, the information reporting method of embodiment of the present application includes: terminal obtains N pre-coding matrix indication (PMI) related with channel measurement resource (CMR), and obtains M phase correlation information between the N PMI;The N is the integer greater than 1, and the M is the integer greater than or equal to 1;Report the N PMI and the M phase correlation information.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of communication, and particularly relates to an information reporting method and device, a terminal and a network-side device. BACKGROUND

[0002] For joint transmission in coordinated multiple points (CoMP) technology, a single data can be sent through multiple network-side devices such as transmission receiving points (TRPs), instead of independent data sent by each TRP. In this case, due to the phase offset between different TRPs, the precoding matrix indicator (PMI) fed back by the existing terminal cannot meet the demand of joint transmission data, affecting the precoding gain of the joint transmission data. SUMMARY

[0003] Embodiments of the present application provide an information reporting method and device, a terminal and a network-side device, which can solve the problem that the PMI fed back by the existing terminal cannot meet the demand of joint transmission data.

[0004] In a first aspect, an information reporting method is provided, which comprises:

[0005] The terminal acquires N PMIs related to CMR and M phase-related information between the N PMIs; N is an integer greater than 1, and M is an integer greater than or equal to 1.

[0006] The terminal reports the N PMIs and the M phase-related information.

[0007] In a second aspect, an information determining method is provided, which is applied to a network-side device and comprises:

[0008] The network-side device receives N PMIs related to CMR and M phase-related information between the N PMIs from a terminal; N is an integer greater than 1, and M is an integer greater than or equal to 1.

[0009] The network-side device determines a PMI for cooperative transmission according to the N PMIs and the M phase-related information.

[0010] In a third aspect, an information reporting device is provided, which is applied to a terminal and comprises:

[0011] An acquisition module is configured to acquire N PMIs related to CMR and M phase-related information between the N PMIs; N is an integer greater than 1, and M is an integer greater than or equal to 1.

[0012] reporting the N PMIs and the M phase-related information.

[0013] In a fourth aspect, an information determination apparatus is provided, which is applied to a network side device and includes:

[0014] a first receiving module, configured to receive, from a terminal, N PMIs related to a CMR and M phase-related information between the N PMIs; the N is an integer greater than 1, and the M is an integer greater than or equal to 1;

[0015] a third determining module, configured to determine, according to the N PMIs and the M phase-related information, a PMI used for cooperative transmission.

[0016] In a fifth aspect, a terminal is provided, which includes a processor and a memory, the memory stores programs or instructions executable on the processor, and the programs or instructions are executed by the processor to implement the steps of the method according to the first aspect.

[0017] In a sixth aspect, a terminal is provided, which includes a processor and a communication interface, wherein the processor is configured to acquire N PMIs related to a CMR and acquire M phase-related information between the N PMIs; the N is an integer greater than 1, and the M is an integer greater than or equal to 1; and the communication interface is configured to report the N PMIs and the M phase-related information.

[0018] In a seventh aspect, a network side device is provided, which includes a processor and a memory, the memory stores programs or instructions executable on the processor, and the programs or instructions are executed by the processor to implement the steps of the method according to the second aspect.

[0019] In an eighth aspect, a network side device is provided, which includes a processor and a communication interface, wherein the communication interface is configured to receive, from a terminal, N PMIs related to a CMR and M phase-related information between the N PMIs; the N is an integer greater than 1, and the M is an integer greater than or equal to 1; and the processor is configured to determine, according to the N PMIs and the M phase-related information, a PMI used for cooperative transmission.

[0020] In a ninth aspect, a communication system is provided, which includes a terminal and a network side device, the terminal is configured to implement the steps of the information reporting method according to the first aspect, and the network side device is configured to implement the steps of the information determination method according to the second aspect.

[0021] In a tenth aspect, a readable storage medium is provided, and the readable storage medium stores a program or instructions, which are executed by a processor to implement the steps of the method according to the first aspect or the steps of the method according to the second aspect.

[0022] In an eleventh aspect, a chip is provided, and the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is configured to run a program or instructions to implement the steps of the method according to the first aspect or the steps of the method according to the second aspect.

[0023] In a twelfth aspect, a computer program / program product is provided, and the computer program / program product is stored in a storage medium, and the computer program / program product is executed by at least one processor to implement the steps of the method according to the first aspect or the steps of the method according to the second aspect.

[0024] In the embodiments of the present application, the terminal can obtain N PMIs related to a channel measurement resource (CMR) and M phase-related information between the N PMIs, and report the N PMIs and the M phase-related information. Thus, by means of the PMIs and the corresponding phase-related information reported by the terminal, the network side device can determine the PMIs for joint transmission / cooperative transmission while considering the phase and / or amplitude offset between different network side devices, so that the data transmitted thereby can obtain greater precoding gain and transmission performance can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 FIG. 1 is a block diagram of a wireless communication system to which embodiments of the present application can be applied;

[0026] Figure 2 FIG. 2 is a flowchart of an information reporting method according to an embodiment of the present application;

[0027] Figure 3 FIG. 3 is a flowchart of an information determining method according to an embodiment of the present application;

[0028] Figure 4 FIG. 4 is a structural schematic diagram of an information reporting apparatus according to an embodiment of the present application;

[0029] Figure 5 FIG. 5 is a structural schematic diagram of an information determining apparatus according to an embodiment of the present application;

[0030] Figure 6 FIG. 6 is a structural schematic diagram of a communication device according to an embodiment of the present application;

[0031] Figure 7is a structural schematic diagram of a terminal provided by an embodiment of the present application;

[0032] Figure 8 is a structural schematic diagram of a network side device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0034] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" are generally of a kind, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally represents an "or" relationship between the front and rear associated objects.

[0035] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied outside the NR system application, such as in a 6th Generation (6G) communication system. th

[0036] Figure 1 ​A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an ultra-mobile personal computer (UMPC), a Mobile Internet Device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a personal computer (PC), a kiosk, or a self-service machine, and the wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, and the like), a smart wristband, smart clothing, and the like. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device, and the access network device 12 can also be referred to as a radio access network device, a radio access network (RAN), a radio access network function, or a radio access network unit. The access network device 12 can include a base station, a WLAN access point, or a WiFi node, and the base station can be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home node B, a home evolved node B, a transmitting receiving point (TRP), or some other appropriate terminology in the art, as long as the same technical effects are achieved. The base station is not limited to a specific technical term, and it should be noted that only a base station in an NR system is taken as an example for description in the embodiments of the present application, and the specific type of the base station is not limited.

[0037] Optionally, the scenario to which the embodiments of the present application are applicable includes, but is not limited to, CoMP transmission, etc. CoMP transmission refers to multiple transmission points separated in geographical position, which cooperatively participate in data transmission for one terminal, such as Physical Downlink Shared Channel (PDSCH) transmission, or jointly receive data transmitted by one terminal, such as Physical Uplink Shared Channel (PUSCH) transmission. The multiple transmission points participating in cooperation usually refer to base stations of different cells. CoMP transmission can reduce inter-cell interference and improve the spectral efficiency of cell edge users.

[0038] In the embodiments of the present application, CoMP technology refers to multi-point transmission / reception technology, where the multi-point refers to multiple antenna access points separated in geography, which can be cooperatively served for users by using optical fiber connected antenna sites. Several adjacent antenna base stations or nodes simultaneously serve one user, thereby improving the data rate of the user. In this way, multiple cell base stations can utilize interference signals as useful signals, thereby reducing inter-cell interference and improving the spectral efficiency of the system. Essentially, a CoMP system is a multi-cell multi-user Multiple-In Multiple-Out (MIMO) system, that is, multiple users are cooperatively transmitted in the cooperating cell set in the CoMP system, and the interference between cells or users can be eliminated by using precoding technology.

[0039] Optionally, the embodiments of the present application can be applied to joint transmission / collaborative transmission in CoMP technology, and an edge terminal can be placed on the same frequency of several base stations, and the edge terminal is simultaneously served by the several base stations, so as to improve the coverage performance.

[0040] Optionally, the PMI report in the embodiments of the present application can be a PMI report of Single Transmission Reception Point (STRP) and / or Non-Coherent Joint Transmission (NCJT), and no limitation is made in this regard.

[0041] Optionally, the phase coefficient in the embodiments of the present application can also be referred to as a phase offset coefficient, which represents the phase difference between different PMIs, PMI matrices, PMI matrix elements or PMI matrix vectors. The amplitude coefficient in the embodiments of the present application can also be referred to as amplitude information, which represents the power ratio or energy ratio between different PMIs, PMI matrices, PMI matrix elements or PMI matrix vectors.

[0042] The information reporting, determination method, device, terminal and network side equipment provided by the embodiments of the present application will be described in detail in combination with the accompanying drawings and some embodiments and application scenarios.

[0043] Please refer to Figure 2 ,Figure 2 is a flowchart of a method for reporting information provided by an embodiment of the present application. The method is performed by a terminal, as shown in Figure 2 The method comprises the following steps:

[0044] Step 21: The terminal acquires N PMIs related to the CMR, and acquires M phase-related information between the N PMIs.

[0045] In this embodiment, N is an integer greater than 1, and M is an integer greater than or equal to 1. The phase-related information can be understood as phase-related information between two PMIs, and can include phase coefficients between two PMIs, or phase coefficients and amplitude coefficients between two PMIs. The phase coefficients can be one-level structure, including wideband phase coefficients or subband phase coefficients, or two-level structure, including wideband phase coefficients and subband phase coefficients. The amplitude coefficients can be one-level structure, including wideband amplitude coefficients or subband amplitude coefficients, or two-level structure, including wideband amplitude coefficients and subband amplitude coefficients.

[0046] In some embodiments, the CMR can be a channel measurement reference signal resource.

[0047] In some embodiments, each of the N PMIs corresponds to one TRP, that is, the N PMIs correspond to N TRPs, and the M phase-related information between the N PMIs can also be referred to as M phase-related information between the N TRPs.

[0048] Step 22: The terminal reports the N PMIs and the M phase-related information.

[0049] Optionally, when the M phase-related information is reported in the present application, there can be a case where part of the strongest phase-related information is not reported, that is, the number of phase-related information actually fed back is less than or equal to M. At this time, the network can acquire the number and position of the phase-related information not fed back according to the indication of the terminal, or assume that the phase coefficients of these phase-related information are 0 and / or the amplitude coefficients are 1 according to the default rule.

[0050] In some embodiments, when the terminal reports the N PMIs and the M phase-related information, it can carry them in a channel state information (CSI) report and report them to the network side device.

[0051] The information reporting method of the embodiments of the present application can be used to enable the terminal to obtain N PMIs related to the CMR and M phase-related information between the N PMIs, and report the N PMIs and the M phase-related information. In this way, by means of the PMIs and the corresponding phase-related information reported by the terminal, the network-side device can determine the PMIs for joint transmission / cooperative transmission while taking into account the phase and / or amplitude offset between different network-side devices, so as to make the data transmitted by the network-side device obtain greater precoding gain and improve the transmission performance.

[0052] In the embodiments of the present application, each CMR or CMR port group configured for the terminal can correspond to one PMI. When obtaining N PMIs related to the CMR, the terminal can first calculate the PMIs based on each CMR or each CMR port group configured for the terminal, obtain a plurality of PMIs, and then select N PMIs from the plurality of PMIs. The above-mentioned CMR can be one of a plurality of CMRs used to calculate the cooperative transmission CSI, and the above-mentioned CMR port group can be one of a plurality of port groups of one CMR used to calculate the cooperative transmission CSI.

[0053] In some embodiments, when performing measurement configuration, the network-side device can configure a plurality of CMRs for the terminal, and / or configure a plurality of CMR port groups for the terminal for a single CMR. For example, if 4 CMRs are configured for the terminal and N is 3, the terminal can first calculate 4 PMIs based on the 4 CMRs, and then select 3 PMIs from the 4 PMIs. For another example, if 5 CMR port groups are configured for the terminal and N is 3, the terminal can first calculate 5 PMIs based on the 5 CMR port groups, and then select 3 PMIs from the 5 PMIs.

[0054] In some embodiments, when selecting N PMIs from a plurality of PMIs, the terminal can select based on network configuration, protocol agreement or preset / default rule. For network configuration, the network can configure the terminal through high-layer signaling whether to select N PMIs from a plurality of PMIs; for preset / default rule, the terminal can determine the first N PMIs in the plurality of PMIs as the N PMIs or the terminal only calculates the PMIs corresponding to the first N CMRs or CMR port groups.

[0055] Optionally, the value of N can be determined in at least one of the following ways:

[0056] Network-side configuration; for example, the terminal can determine the value of N based on the configuration information of the network-side device;

[0057] Terminal selection; for example, the terminal can determine the value of N based on its own selection;

[0058] The high-layer signaling is, for example, Radio Resource Control (RRC) signaling, Medium Access Control Control Element (MAC CE), or the like.

[0059] Optionally, the value of N can be related to at least one of the following:

[0060] The number of CMRs used to calculate the cooperative transmission CSI; for example, the value of N is less than or equal to the number of CMRs used to calculate the cooperative transmission CSI.

[0061] The number of CMR port groups used to calculate the cooperative transmission CSI; for example, the value of N is less than or equal to the number of CMR port groups used to calculate the cooperative transmission CSI; in particular, if only one CMR port group is mapped to multiple TRPs, the value of N is less than or equal to the number of CMR port groups.

[0062] Optionally, the value of M can be related to any one of the following:

[0063] The value of N;

[0064] The value of N and the rank of the PMI; for example, each PMI has the same rank value, such as 2, for the reported multiple PMIs.

[0065] The value of N and the number of measurement sub-bands; for example, the network side device can configure which sub-bands to measure when performing measurement configuration, and can explicitly or implicitly indicate the number of measurement sub-bands.

[0066] The value of N, the rank of the PMI, and the number of measurement sub-bands.

[0067] The value of N and the number of measurement time domain taps; for example, each PMI has the same number of time domain taps, such as 4, for the reported multiple PMIs.

[0068] The value of N, the rank of the PMI, and the number of measurement time domain taps; for example, each PMI has the same rank value, such as 2, for the reported multiple PMIs.

[0069] In some embodiments, when the value of M is related to the value of N, M is equal to N-1.

[0070] In other embodiments, when the value of M is related to the value of N and the value of the rank of the PMI a, M is equal to (N-1)*a, * indicating multiplication.

[0071] In some other embodiments, when the value of M is related to the value of N, the value of a rank of the PMI, and the number b of subbands measured, M is equal to (N-1) *a*b, where * represents multiplication.

[0072] In some other embodiments, when the value of M is related to the value of N, the value of a rank of the PMI, and the number b of subbands measured, M is equal to (N-1) *a*b, where * represents multiplication.

[0073] In some other embodiments, when the value of M is related to the value of N and the number c of time-domain taps measured, M is equal to (N-1) *c.

[0074] In some other embodiments, when the value of M is related to the value of N, the value of a rank of the PMI, and the number c of time-domain taps measured, M is equal to (N-1) *a*c.

[0075] In the embodiments of the present application, in order to facilitate the understanding of the terminal and the network side device for the reported information, the terminal can report in a quantized manner when reporting the phase coefficient / amplitude coefficient, such as quantizing the phase coefficient / amplitude coefficient to the corresponding quantized candidate value for reporting. For example, if the terminal determines the phase coefficient to be reported based on the measurement result is 40°, the preconfigured / preset phase quantization values include 1, 2, 3 and 4, and 1 corresponds to a phase coefficient of 0°, 2 corresponds to a phase coefficient of 45°, 3 corresponds to a phase coefficient of 90°, and 4 corresponds to a phase coefficient of 135°, the terminal can select the phase quantization value 2 corresponding to the closest 45° to 40° for reporting. For another example, if the terminal determines the amplitude coefficient to be reported based on the measurement result is 1 / 3, the preconfigured / preset amplitude quantization values include 1, 1 / 2, 1 / 4 and 1 / 8, and the corresponding serial numbers are 1, 2, 3 and 4, the terminal can select the serial number 3 corresponding to the closest 1 / 4 to 1 / 3 for reporting.

[0076] Optionally, if the phase-related information obtained by the terminal includes a phase coefficient, the M phase-related information includes M phase coefficients, and the reporting of the M phase-related information includes: the terminal reporting a first quantized value of each of the M phase coefficients. Alternatively, if the phase-related information obtained by the terminal includes a phase coefficient and an amplitude coefficient, the M phase-related information includes M phase coefficients and M amplitude coefficients, and the reporting of the M phase-related information includes: the terminal reporting a second quantized value of each of the M phase coefficients and a third quantized value of each of the M amplitude coefficients.

[0077] Further, the first quantization value or the second quantization value can be any one of all phase quantization values in the first candidate value set. The first candidate value set can include a group of phase quantization values corresponding to wideband phase coefficients or subband phase coefficients. Alternatively, the first candidate value set can include two groups of phase quantization values, a first group of phase quantization values of which correspond to wideband phase coefficients and a second group of phase quantization values of which correspond to subband phase coefficients.

[0078] Further, the third quantization value can be any one of all amplitude quantization values in the second candidate value set. The second candidate value set can include a group of amplitude quantization values corresponding to wideband amplitude coefficients or subband amplitude coefficients, or the second candidate value set can include two groups of amplitude quantization values, a first group of amplitude quantization values of which correspond to wideband amplitude coefficients and a second group of amplitude quantization values of which correspond to subband amplitude coefficients.

[0079] It is noted that in the embodiment, a group of phase quantization values can be understood as a phase quantization value set including at least one phase quantization value, and two groups of phase quantization values can be understood as two phase quantization value sets, each of which includes at least one phase quantization value. A group of amplitude quantization values can be understood as an amplitude quantization value set including at least one amplitude quantization value, and two groups of amplitude quantization values can be understood as two amplitude quantization value sets, each of which includes at least one amplitude quantization value.

[0080] In some embodiments, the first candidate value set includes a group of phase quantization values corresponding to wideband phase coefficients or subband phase coefficients, when the value of M is related to or irrelevant to the number of measurement subbands, so that the terminal feeds back or indicates, to the base station, the phase quantization value corresponding to the phase coefficient to be reported based on the measurement result and the first candidate value set. Further, when the value of M is related to the number of measurement subbands, the value of M can be related to the value of N and the number of measurement subbands b, such as (N-1)*b, or related to the value of N, the value of rank of PMI a and the number of measurement subbands b, such as (N-1)*a*b.

[0081] In some other embodiments, the first candidate value set includes two groups of phase quantization values corresponding to wideband phase coefficients and subband phase coefficients respectively, when the value of M is related to the number of measurement subbands, so that the terminal feeds back or indicates, to the base station, the phase quantization value corresponding to the phase coefficient to be reported based on the measurement result and the first candidate value set.

[0082] In some other embodiments, the second candidate value set includes a set of amplitude quantization values corresponding to wideband amplitude coefficients or subband amplitude coefficients, such that the terminal feeds back or indicates the amplitude quantization value corresponding to the amplitude coefficient to be reported to the base station based on the measurement result and the second candidate value set, when the value of M is related to the number of measured subbands.

[0083] In some other embodiments, the second candidate value set includes two sets of amplitude quantization values corresponding to wideband amplitude coefficients and subband amplitude coefficients respectively, such that the terminal feeds back or indicates the amplitude quantization value corresponding to the amplitude coefficient to be reported to the base station based on the measurement result and the second candidate value set, when the value of M is related to the number of measured subbands.

[0084] Optionally, when the first candidate value set includes a set of phase quantization values, the set of phase quantization values can satisfy any one of the following: default, network side configured, calculated based on one phase parameter configured by the network side. That is, the set of phase quantization values can be default, configured by the network side device such as a base station, or calculated based on one phase parameter configured by the network side. The phase parameter can be configured based on actual requirements, such as 4, i.e., QPSK, and the like, without limitation.

[0085] Optionally, when the first candidate value set includes two sets of phase quantization values, the two sets of phase quantization values can satisfy any one of the following: default, network side configured, calculated based on two phase parameters configured by the network side. That is, the two sets of phase quantization values can be default, configured by the network side device such as a base station, or calculated based on two phase parameters configured by the network side. The two phase parameters can be the same or different, and the phase parameter can be configured based on actual requirements, such as 4, and the like, without limitation.

[0086] Optionally, when the second candidate value set includes a set of amplitude quantization values, the set of amplitude quantization values can satisfy any one of the following: default, network side configured, calculated based on one amplitude parameter configured by the network side. That is, the set of amplitude quantization values can be default, configured by the network side device such as a base station, or calculated based on one amplitude parameter configured by the network side. For the default case, i.e., the terminal only needs to feed back the serial number corresponding to the quantization value in the quantization table, and the network determines the quantization value according to the serial number, when the network and the terminal quantize more default quantization table; for the amplitude parameter, the network can configure based on actual requirements, for example, when the network is configured as 4, it means that the amplitude quantization interval is 1 / 4, i.e., the amplitude quantization values are 0, 1 / 4, 1 / 2, 1, which correspond to the serial numbers 0 / 1 / 2 / 3 respectively, and the terminal feeds back the corresponding serial number, and the network determines the amplitude according to the serial number, without limitation.

[0087] Optionally, when the second candidate value set includes two groups of amplitude quantization values, the two groups of amplitude quantization values can satisfy any one of the following conditions: default, network side configuration, and calculation based on two amplitude parameters configured by the network side. That is, the two groups of amplitude quantization values can be default, configured by a network side device such as a base station, or calculated based on two amplitude parameters configured by the network side. The two amplitude parameters can be the same or different.

[0088] Optionally, when a group of phase quantization values S is calculated based on a phase parameter, the calculation can be performed by using a Quadrature Phase Shift Keying (QPSK) or 8PSK constellation point, and the like. For example, if the network configures the phase parameter as 4 or QPSK, the terminal can obtain a group of phase quantization values S = {e j2πc / 4}, and the value of c is determined by the phase parameter. For example, if the phase parameter is 4, c = 0, 1, 2, and 3. If the network configures the phase parameter as 4 or 8PSK, the terminal can obtain a group of phase quantization values S = {e j2πc / 8}, and the value of c is determined by the phase parameter. For example, if the phase parameter is 8, c = 0, 1, 2, 3, 4, 5, 6, and 7. For the QPSK or 8PSK constellation point, the protocol can be agreed or further RRC configured, dynamically indicated, or selected by the terminal, and the like, and no limitation is made.

[0089] Optionally, when a group of amplitude quantization values S is obtained, a predetermined amplitude quantization can be used, for example, a predetermined wideband amplitude quantization table is as shown in Table 1.

[0090] Table 1

[0091]

[0092] A subband amplitude quantization table is as shown in Table 2.

[0093] Table 2

[0094]

[0095] The terminal only needs to feed back the sequence number corresponding to the quantization value in the table, and the network can determine the quantization value according to the sequence number.

[0096] In the embodiments of the present application, the process in which the terminal obtains M phase correlation information between N PMIs can include at least one of the following:

[0097] 1) the terminal calculates M phase coefficients based on the phase of the N-1 PMIs and the phase of a reference PMI, wherein the reference PMI is a PMI other than the N-1 PMIs among the N PMIs, and the M phase coefficients can be understood as phase coefficients associated with the N-1 PMIs.

[0098] In some embodiments, in the case of 1), the terminal can calculate a phase difference between each of the N-1 PMIs and the reference PMI to obtain the M phase coefficients. In the M phase coefficients, the phase coefficient associated with the nth(n=1, 2, …, N-1) PMI can be represented as the phase difference between the nth PMI and the reference PMI.

[0099] 2) the terminal calculates M phase coefficients based on the phase of each two adjacent PMIs among the N PMIs, and the M phase coefficients can be understood as phase coefficients associated with the N-1 PMIs.

[0100] In some embodiments, in the case of 2), the terminal can calculate a phase difference between each two adjacent PMIs among the N PMIs to obtain the M phase coefficients. In the M phase coefficients, the phase coefficient associated with the mth(m=2, 3, …, N) PMI can be represented as the phase difference between the mth PMI and the (m-1)th PMI.

[0101] 3) the terminal calculates M amplitude coefficients based on the amplitude of the N-1 PMIs and the amplitude of a reference PMI, wherein the reference PMI is a PMI other than the N-1 PMIs among the N PMIs, and the M amplitude coefficients can be understood as amplitude coefficients associated with the N-1 PMIs.

[0102] In some embodiments, in the case of 3), the terminal can calculate an amplitude quotient between each of the N-1 PMIs and the reference PMI to obtain the M amplitude coefficients. In the M phase coefficients, the amplitude coefficient associated with the nth(n=1, 2, …, N-1) PMI can be represented as the amplitude quotient between the nth PMI and the reference PMI.

[0103] 4) the terminal calculates M amplitude coefficients based on the amplitude of each two adjacent PMIs among the N PMIs, and the M amplitude coefficients can be understood as amplitude coefficients associated with the N-1 PMIs.

[0104] In some embodiments, in the case of 4), the terminal can calculate an amplitude quotient between each two adjacent PMIs among the N PMIs to obtain the M amplitude coefficients. In the M amplitude coefficients, the amplitude coefficient associated with the mth(m=2, 3, …, N) PMI can be represented as the amplitude quotient between the mth PMI and the (m-1)th PMI.

[0105] Optionally, the reference PMI can be calculated by the terminal based on the reference CMR or the reference CMR port group.

[0106] Optionally, the terminal can determine the reference CMR or the reference CMR port group based on at least one of the following:

[0107] received higher layer signaling; for example, the higher layer signaling can be RRC signaling, MAC CE, etc.

[0108] a preset rule; for example, the reference CMR is a default CMR, such as the first CMR configured for the terminal; and the reference CMR port group is a default CMR port group, such as the first CMR port group configured for the terminal.

[0109] In some embodiments, the terminal can determine the reference CMR or the reference CMR port group through the received RRC signaling or MAC CE.

[0110] In other embodiments, the terminal can determine the first CMR configured for the terminal as the reference CMR and / or the first CMR port group configured for the terminal as the reference CMR port group based on a preset rule.

[0111] Optionally, when M phase coefficients are calculated based on the phase of each two adjacent PMIs in N PMIs, and / or M amplitude coefficients are calculated based on the amplitude of each two adjacent PMIs in N PMIs, the N PMIs can satisfy any one of the following:

[0112] arranged in the order of configuration of the plurality of CMRs; for example, arranged in the order of configuration of the plurality of CMRs;

[0113] arranged in the order of configuration of the plurality of CMR port groups; for example, arranged in the order of configuration of the plurality of CMR port groups;

[0114] arranged in the order of resource identification of the plurality of CMRs; for example, arranged in the order of resource identification of the plurality of CMRs from large to small or from small to large.

[0115] Optionally, for the obtained N PMIs, the terminal can determine the arrangement order of the N PMIs based on received higher layer signaling; for example, the higher layer signaling implicitly or explicitly indicates the arrangement order of the N PMIs, and the higher layer signaling can be RRC signaling, MAC CE, etc.

[0116] In the embodiments of the present application, in the case that the terminal selects the value of N, the terminal can implicitly indicate the number N of reported PMIs to the network side by directly indicating the number M of reported phase-related information, or can implicitly indicate the number M of reported phase-related information to the network side by directly indicating the number N of reported PMIs.

[0117] Optionally, the terminal can send first indication information to the network side device; wherein the first indication information is used to explicitly indicate the number N of reported PMIs and implicitly indicate the number M of reported phase-related information; or the first indication information is used to explicitly indicate the number M of reported phase-related information and implicitly indicate the number N of reported PMIs.

[0118] Further, the terminal can send the first indication information to the network side device in the case that a first condition is met; the first condition includes at least one of the following:

[0119] N is less than the number of CMRs used to calculate the cooperative transmission CSI, and the value of N is selected by the terminal;

[0120] N is less than the number of CMR port groups used to calculate the cooperative transmission CSI, and the value of N is selected by the terminal.

[0121] Further, the first indication information can be carried in Part 1 of the CSI report reported by the terminal. In this way, by demodulating Part 1 of the CSI report, the network side device can obtain the value of M or N, so as to determine the size of the PMI reported by the terminal, dynamically adjust the number of reporting bits of the PMI, and save the overhead.

[0122] In some embodiments, the number M of reported phase-related information can be explicitly indicated in Part 1 or implicitly indicated through other fields in Part 1, so that the network side device can know M.

[0123] In other embodiments, the number N of reported PMIs can be explicitly indicated in Part 1 or implicitly indicated through a channel state information reference signal resource indicator (CRI) or other fields in Part 1, so that the network side device can know N.

[0124] It is to be noted that the CSI report can be any one of periodic CSI report, semi-persistent CSI report and aperiodic CSI report. The CSI report can be based on PUSCH feedback, and can be any one of Type 1 CSI, Type 2 CSI, enhanced Type 2 and further enhanced Type 2. The CSI report can be based on PUCCH feedback, and can be any one of wideband Type 1 CSI, wideband and subband Type 1 CSI, or wideband and subband Type 2 CSI, etc. No limitation is made in this regard.

[0125] Optionally, after the corresponding PMI and M phase-related information are acquired, the terminal can map the parameters to uplink control information (UCI) and feed back to the network side device. The terminal can map the M phase-related information to the uplink control information (UCI) for reporting; the M phase-related information satisfies any one of the following:

[0126] For any one of the Type 1 codebook, Type 2 codebook, Type 2 port selection codebook, the mapping priority of the M phase-related information in the UCI is higher than the mapping priority of the subband CSI part (such as including: PMI subband part and / or second codeword CQI subband part) in the UCI; in this way, with the higher mapping priority of the M phase-related information, the priority transmission of the M phase-related information can be ensured;

[0127] For any one of the enhanced Type 2 codebook, enhanced Type 2 port selection codebook, further enhanced Type 2 port selection codebook, the mapping priority of the M phase-related information in the UCI is higher than the mapping priority of the PMI amplitude phase information indication and window information indication in the UCI. In this way, with the higher priority of the M phase-related information, when the number of feedback bits is limited, even if the existing PMI amplitude phase information indication and window information indication are discarded, an incomplete PMI can be recovered for use, and if the M phase-related information is discarded first, the network cannot recover the PMI for joint transmission / cooperative transmission.

[0128] It is to be noted that for the mapping priority, the mapping priority of the higher one is discarded later, for example: the mapping priority of the M phase coefficients is higher than the Part 2 subband CSI part, then when the number of feedback bits is limited, the Part 2 subband CSI part is discarded first, and then the M phase coefficients are discarded. The Type 1 codebook is a fixed codeword codebook specified in the protocol, the Type 2 codebook is a codebook based on quantization feedback specified in the protocol, the enhanced Type 2 codebook is an enhanced quantization feedback codebook based on the Type 2 codebook in the protocol, and the further enhanced Type 2 codebook is an enhanced quantization feedback codebook based on the enhanced Type 2 codebook in the protocol.

[0129] Please refer to Figure 3 , Figure 3 is a flowchart of an information determination method provided by an embodiment of the present application, which is performed by a network side device, as shown in Figure 3 , the method comprises the following steps:

[0130] Step 31: The network side device receives N PMIs related to CMR and M phase-related information between the N PMIs from a terminal.

[0131] In the embodiment, N is an integer greater than 1, and M is an integer greater than or equal to 1. The phase-related information can be understood as phase-related information between two PMIs, which can include phase coefficients between two PMIs, or can include phase coefficients and amplitude coefficients between two PMIs. The CMR can be selected as a channel measurement reference signal resource. The phase coefficients can be one-level structure including wideband phase coefficients or sub-band phase coefficients, or two-level structure including wideband phase coefficients and sub-band phase coefficients. The amplitude coefficients can be one-level structure including wideband amplitude coefficients or sub-band amplitude coefficients, or two-level structure including wideband amplitude coefficients and sub-band amplitude coefficients.

[0132] In some embodiments, each of the N PMIs corresponds to one TRP, that is, the N PMIs correspond to N TRPs, and the M phase-related information between the N PMIs can also be referred to as M phase-related information between the N TRPs.

[0133] Step 32: The network side device determines a PMI for cooperative transmission according to the N PMIs and the M phase-related information.

[0134] In the embodiment, the PMI for cooperative transmission can also be referred to as a PMI for joint transmission. The cooperative transmission can be selected as coherent cooperative transmission.

[0135] In some embodiments, for multiple network side devices for cooperative transmission / joint transmission, one of the multiple network side devices can determine a PMI for cooperative transmission based on the terminal reporting information, and share it to other network side devices; then, the multiple network side devices can perform data transmission based on the PMI for cooperative transmission.

[0136] In some embodiments, the network-side device can process the N PMIs according to the received M phase-related information to obtain the PMI for cooperative transmission. The specific processing behavior can be understood as superimposing or multiplying the M phase-related information into the corresponding PMI to obtain N updated PMIs, wherein the number of rows of each PMI matrix is the number of transmission ports, and the number of columns is the rank value. The N PMIs can be spliced by rows to obtain the PMI for cooperative transmission. Wherein the number of rows of the PMI for cooperative transmission obtained by splicing by rows is the sum of the number of rows of the N PMIs, and the number of columns remains unchanged and is equal to the number of columns of each PMI.

[0137] The information determination method of the embodiments of the present application can make the network-side device consider the phase offset between different network-side devices when determining the PMI for joint transmission / cooperative transmission, so that the data transmitted thereby obtains greater precoding gain and improves transmission performance.

[0138] Optionally, the value of N can be related to at least one of the following:

[0139] The number of CMRs used to calculate the CSI for cooperative transmission; for example, the value of N is less than or equal to the number of CMRs used to calculate the CSI for cooperative transmission;

[0140] The number of CMR port groups used to calculate the CSI for cooperative transmission; for example, the value of N is less than or equal to the number of CMR port groups used to calculate the CSI for cooperative transmission; in particular, if only one CMR port group is mapped to multiple TRPs, the value of N is less than or equal to the number of CMR port groups.

[0141] Optionally, the value of M can be related to any one of the following:

[0142] The value of N;

[0143] The value of N and the value of the rank of the PMI; for example, each PMI has the same rank value, such as 2, for the reported multiple PMIs;

[0144] The value of N and the number of measurement subbands; for example, the network-side device can configure which subbands to measure when performing measurement configuration, and can explicitly or implicitly indicate the number of measurement subbands;

[0145] The value of N, the value of the rank of the PMI, and the number of measurement subbands;

[0146] The value of N and the number of measurement time domain taps; for example, each PMI has the same number of time domain taps, such as 4, for the reported multiple PMIs;

[0147] N, a value of the rank of the PMI, and a number of measurement time domain taps; for example, for multiple reported PMIs, each PMI has a same rank value, such as 2.

[0148] In some embodiments, when a value of M is related to a value of N, M equals N-1.

[0149] In some other embodiments, when a value of M is related to a value of N and a value of rank a of the PMI, M equals (N-1)*a, * represents multiplication.

[0150] In some other embodiments, when a value of M is related to a value of N and a number b of measurement subbands, M equals (N-1)*b, * represents multiplication.

[0151] In some other embodiments, when a value of M is related to a value of N, a value of rank a of the PMI, and a number b of measurement subbands, M equals (N-1)*a*b, * represents multiplication.

[0152] In some other embodiments, when a value of the M is related to a value of the N and a number c of measurement time domain taps, the M equals (N-1)*c;

[0153] In some other embodiments, when a value of the M is related to a value of the N, a value of rank a of the PMI, and a number c of measurement time domain taps, the M equals (N-1)*a*c.

[0154] Optionally, the network-side device can send first configuration information to the terminal; wherein the first configuration information is used to configure a value of N for the terminal; or the network-side device can send second indication information to the terminal; wherein the second indication information is used to indicate the value of N.

[0155] Optionally, the network-side device can send second configuration information to the terminal; wherein the second configuration information is used to configure the terminal with at least one of the following:

[0156] a first candidate value set; wherein the first candidate value set includes a group of phase quantization values, the group of phase quantization values corresponding to wideband phase coefficients or subband phase coefficients; or the first candidate value set includes two groups of phase quantization values, a first group of phase quantization values in the two groups of phase quantization values corresponding to wideband phase coefficients, and a second group of phase quantization values corresponding to subband phase coefficients;

[0157] a second candidate value set; wherein the second candidate value set comprises a group of amplitude quantization values corresponding to wideband amplitude coefficients or subband amplitude coefficients; or the second candidate value set comprises two groups of amplitude quantization values, a first group of amplitude quantization values of which correspond to wideband amplitude coefficients and a second group of amplitude quantization values correspond to subband amplitude coefficients;

[0158] one phase parameter used for calculating a group of phase quantization values corresponding to wideband phase coefficients or subband phase coefficients;

[0159] two phase parameters used for calculating two groups of phase quantization values, a first group of phase quantization values of which correspond to wideband phase coefficients and a second group of phase quantization values correspond to subband phase coefficients;

[0160] one amplitude parameter used for calculating a group of amplitude quantization values corresponding to wideband amplitude coefficients or subband amplitude coefficients;

[0161] two amplitude parameters used for calculating two groups of amplitude quantization values, a first group of amplitude quantization values of which correspond to wideband amplitude coefficients and a second group of amplitude quantization values correspond to subband amplitude coefficients.

[0162] Optionally, the network-side device can send third indication information to the terminal; wherein the third indication information is used for indicating the reference CMR or the reference CMR port group.

[0163] Optionally, the network-side device sends fourth indication information to the terminal; wherein the fourth indication information is used for indicating the arrangement order of the N PMIs.

[0164] Optionally, the N PMIs can satisfy any one of the following conditions:

[0165] arranged according to the configuration order of the multiple CMRs;

[0166] arranged according to the configuration order of the multiple CMR port groups;

[0167] arranged according to the order of the resource identifiers of the multiple CMRs.

[0168] Optionally, the network-side device can receive first indication information from the terminal; wherein the first indication information is used for explicitly indicating N and implicitly indicating M; or the first indication information is used for explicitly indicating M and implicitly indicating N.

[0169] Optionally, the first indication information can be carried in Part 1 of the CSI report reported by the terminal, so as to obtain the values of N and M by the network-side device.

[0170] The present application will now be described in conjunction with specific embodiments.

[0171] Example 1:

[0172] In this first embodiment, the network configuration related transmission measurement resources are, for example, CMR1, CMR2, CMR3, and CMR4. Each CMR corresponds to one TRP, the codebook type is Type 2 codebook, the phase parameter is 4, and the number M of reported phase coefficients is related to the number N of reported PMIs and the rank value. Then, the terminal can use the measurement resources to obtain the PMI (W) of the s-th subband of the four TRPs respectively. 1_s W 2_s W 3_s W 4_s The quantization values ​​(p) corresponding to the rank*(N-1) = 2*3 = 6 phase coefficients between the rank and 4 TRPs are 2*3 = 6. 1_1 p 1_2 p 2_1 p 2_2 p 3_1 p 3_2 ), and report; where the s-th sub-band is configured by the network side, each PMI has the same rank number 2, s is a positive integer, the quantization value corresponding to the sub-band phase coefficient is taken from a set of phase quantization values ​​S1, S1 is obtained according to QPSK and phase parameter 4, that is, S1={e j2πc / 4 c = 0, 1, 2, 3}.

[0173] Then, the network-side device can concatenate the received four PMIs and their corresponding phase coefficients row by row to obtain the PMI(Ws) for the s-th subband used for joint transmission / cooperative transmission, as follows:

[0174] Ws=[W1_s; W2_s*P1; W3_s*P2; W4_s*P3]

[0175] Where Pi = diag(p i_1 ,…,p i_r ), r=2,i=1,2,3, representing the elements p in the diagonal matrix i_r The resulting diagonal matrix has a dimension equal to the rank value r.

[0176] Example 2:

[0177] In this second embodiment, the network configuration related transmission measurement resources are, for example, CMR1, CMR2, CMR3, and CMR4. Each CMR corresponds to one TRP, the codebook type is Type 2 codebook, the phase parameter is 4, and the number M of reported phase coefficients is related to the number N of reported PMIs. Then, the terminal can use the measurement resources to obtain the PMI (W) of the s-th subband of the four TRPs respectively.1_s W 2_s W 3_s W 4_s The quantized values ​​(p1, p2, p3) corresponding to the N-1 = 3 phase coefficients of the 4 TRPs are reported; among them, the s-th sub-band is configured by the network side, each PMI has the same rank number 2, s is a positive integer, and the quantized value corresponding to the sub-band phase coefficient is taken from a set of phase quantized values ​​S1, which is obtained according to QPSK and phase parameter 4, that is, S1 = {e j2πc / 4 c = 0, 1, 2, 3}.

[0178] Then, the network-side device can concatenate the received four PMIs and their corresponding phase coefficients row by row to obtain the PMI(Ws) for the s-th subband used for joint transmission / cooperative transmission, as follows:

[0179] Ws=[W1_s; W2_s*P1; W3_s*P2; W4_s*P3]

[0180] Where, Pi = diag(pi) r ,i=1,2,3,r=2, represents a diagonal matrix composed of diagonal matrix elements pi, with matrix dimension r being the rank value.

[0181] Example 3:

[0182] In this third embodiment, the network configuration related transmission measurement resources are, for example, CMR1, CMR2, CMR3, and CMR4. Each CMR corresponds to one TRP, the codebook type is Type 2 codebook, the phase parameter is 4, and the number M of reported phase coefficients is related to the number N of reported PMIs. Then, the terminal can use the measurement resources to obtain the PMI (W) of the s-th subband of the four TRPs respectively. 1_s W 2_s W 3_s W 4_s ) and the quantization values ​​(p) corresponding to the N-1=3 phase coefficients of the s-th subband of the 4 TRPs. 1_s p 2_s p 3_s ), and report; where the s-th sub-band is configured by the network side, each PMI has the same rank number 2, s is a positive integer, the quantization value corresponding to the sub-band phase coefficient is taken from a set of phase quantization values ​​S1, S1 is obtained according to QPSK and phase parameter 4, that is, S1={e j2πc / 4 c = 0, 1, 2, 3}.

[0183] Then, the network-side device can concatenate the received four PMIs and their corresponding phase coefficients row by row to obtain the PMI(Ws) for the s-th subband used for joint transmission / cooperative transmission, as follows:

[0184] Ws = [W1_s; W2_s * P1_s; W3_s * P2_s; W4_s * P3_s]

[0185] wherein, Pi_s = diag(p i_s ) r , i = 1, 2, 3, r = 2, represents a diagonal matrix composed of diagonal matrix elements p i_s , the matrix dimension is the rank value r.

[0186] Embodiment Four:

[0187] In this embodiment four, the network configures the measurement resources related to the transmission, such as CMR1, CMR2, CMR3 and CMR4, each CMR corresponds to a TRP, the codebook type is Type2 codebook, the phase parameter is 4, the number of reported phase coefficients M is related to the number of reported PMIs N, then: the terminal can use the measurement resources to obtain the PMI (W 1_s , W 2_s , W 3_s , W 4_s ) of the s-th subband of the 4 TRPs and the quantized values (p 1_s , p 2_s , p 3_s ) corresponding to the N-1 = 3 phase coefficients of the s-th subband of the 4 TRPs, and reports; wherein, the s-th subband is configured by the network side, each PMI has the same rank number 2, s is a positive integer, the quantized values corresponding to the subband phase coefficients are taken from a group of phase quantized values S1, S1 is obtained according to QPSK and phase parameter 4, that is, S1 = {e j2πc / 4 , c = 0, 1, 2, 3}.

[0188] Then, the network side device can obtain the PMI (Ws) of the s-th subband for joint transmission / cooperative transmission according to the received four PMIs and corresponding phase coefficients, and the specific process is as follows:

[0189] Ws = [W1_s; W2_s * P1_s; W3_s * P1_s * P2_s; W4_s * P1_s * P2_s * P3_s]

[0190] wherein, Pi_s = diag(p i_s ) r , i = 1, 2, 3, r = 2, represents a diagonal matrix composed of diagonal matrix elements p i_s , the matrix dimension is the rank value r.

[0191] Embodiment Five:

[0192] In this embodiment five, the network configures measurement resources related to transmission, such as CMR1, CMR2, CMR3 and CMR4, each CMR corresponds to a TRP, the codebook type is Type2 codebook, the phase parameter is 4, the number of reported phase coefficients M is related to the number of reported PMIs N, then: the terminal can obtain the PMI (W 1_s , W 2_s , W 3_s , W 4_s ) of the s-th subband of the 4 TRPs and the quantized values (p 1_s , p 2_s , p 3_s ) corresponding to the N-1=3 phase coefficients of the s-th subband of the 4 TRPs and the quantized values (w1, w2, w3) corresponding to the wideband N-1=3 phase coefficients of the 4 TRPs, and reports; wherein the s-th subband is configured by the network side, each PMI has the same rank number 2, s is a positive integer, the quantized values corresponding to the wideband phase coefficients are taken from a set of phase quantized values S1, S1 is obtained according to QPSK and phase parameter 4, that is, S1={e j2πc / 4 ,c=0,1,2,3}, the quantized values corresponding to the subband phase coefficients are taken from a set of phase quantized values S2, S2 is obtained according to 8PSK constellation points and phase parameter 4, that is, S2={e j2 πc / 8 ,c=0,1,2,3}.

[0193] Then, the network side device can obtain the PMI (Ws) of the s-th subband for joint transmission / cooperative transmission according to the received four PMIs and corresponding phase coefficients, and the specific process is as follows:

[0194] Ws=[W1_s;W2_s*P1_s;W3_s*P2_s;W4_s*P3_s]

[0195] Wherein, Pi_s=diag(p i_s *w i ) r ,i=1,2,3,r=2, indicates a diagonal matrix composed of diagonal matrix elements p i_s , the matrix dimension is the rank value r.

[0196] The information reporting method provided by the embodiments of the application can be executed by an information reporting device. In the embodiments of the application, the information reporting method executed by the information reporting device is taken as an example to illustrate the information reporting device provided by the embodiments of the application.

[0197] Please refer to Figure 4 , Figure 4 is a structural schematic diagram of an information reporting device provided by the embodiments of the application, and the device is applied to a terminal, such asFigure 4 As shown in FIG. 4, the information reporting device 40 comprises:

[0198] an obtaining module 41, configured to obtain N PMIs related to CMRs, and obtain M phase-related information between the N PMIs; the N is an integer greater than 1, and the M is an integer greater than or equal to 1;

[0199] a reporting module 42, configured to report the N PMIs and the M phase-related information.

[0200] Optionally, the obtaining module 41 comprises:

[0201] a calculating unit, configured to calculate PMIs based on each CMR or each CMR port group configured by the terminal, and obtain a plurality of PMIs;

[0202] a selecting unit, configured to select the N PMIs from the plurality of PMIs.

[0203] Optionally, the value of the N is determined by at least one of the following manners:

[0204] network side configuration;

[0205] terminal selection;

[0206] high-layer signaling indication.

[0207] Optionally, the value of the N is related to at least one of the following:

[0208] the number of CMRs used to calculate cooperative transmission channel state information (CSI);

[0209] the number of CMR port groups used to calculate cooperative transmission CSI.

[0210] Optionally, the value of the M is related to any one of the following:

[0211] the value of the N;

[0212] the value of the N and the value of a rank of the PMI;

[0213] the value of the N and the number of measurement sub-bands;

[0214] the value of the N and the number of measurement time-domain taps;

[0215] the value of the N, the value of the rank of the PMI, and the number of measurement sub-bands;

[0216] the value of the N, the value of the rank of the PMI, and the number of measurement time-domain taps.

[0217] Optionally, when the value of M is related to the value of N, M equals N-1;

[0218] When the value of M is related to the value of N and the value of rank of PMI, M equals (N-1)*a;

[0219] When the value of M is related to the value of N and the number of measurement subbands, M equals (N-1)*b;

[0220] When the value of M is related to the value of N, the value of rank of PMI and the number of measurement subbands, M equals (N-1)*a*b;

[0221] When the value of M is related to the value of N and the number of measurement time-domain taps, M equals (N-1)*c;

[0222] When the value of M is related to the value of N, the value of rank of PMI and the number of measurement time-domain taps, M equals (N-1)*a*c;

[0223] Wherein, the a is the value of rank of PMI, the b is the number of measurement subbands, the c is the number of measurement time-domain taps, and * represents multiplication.

[0224] Optionally, the phase-related information includes any of the following:

[0225] Phase coefficient; phase coefficient and amplitude coefficient.

[0226] Optionally, when the phase-related information includes the phase coefficient, the M phase-related information includes M phase coefficients; and the reporting module 42 is specifically configured to report a first quantized value of each of the M phase coefficients.

[0227] Optionally, when the phase-related information includes the phase coefficient and the amplitude coefficient, the M phase-related information includes M phase coefficients and M amplitude coefficients; and the reporting module 42 is specifically configured to report a second quantized value of each of the M phase coefficients and a third quantized value of each of the M amplitude coefficients.

[0228] Optionally, the first quantized value or the second quantized value is any of all phase quantized values in a first candidate value set; the first candidate value set includes a group of phase quantized values, the group of phase quantized values corresponding to a wideband phase coefficient or a subband phase coefficient; or the first candidate value set includes two groups of phase quantized values, a first group of phase quantized values in the two groups of phase quantized values corresponding to a wideband phase coefficient and a second group of phase quantized values corresponding to a subband phase coefficient.

[0229] The third quantization value is any one of all amplitude quantization values in a second candidate value set; the second candidate value set includes a group of amplitude quantization values corresponding to wideband amplitude coefficients or subband amplitude coefficients; or the second candidate value set includes two groups of amplitude quantization values, a first group of amplitude quantization values in the two groups of amplitude quantization values corresponding to wideband amplitude coefficients, and a second group of amplitude quantization values corresponding to subband amplitude coefficients.

[0230] Optionally, a group of phase quantization values in the first candidate value set satisfies any one of the following: default, network side configuration, and calculation based on one phase parameter configured by the network side;

[0231] Two groups of phase quantization values in the first candidate value set satisfy any one of the following: default, network side configuration, and calculation based on two phase parameters configured by the network side;

[0232] A group of amplitude quantization values in the second candidate value set satisfies any one of the following: default, network side configuration, and calculation based on one amplitude parameter configured by the network side;

[0233] Two groups of amplitude quantization values in the second candidate value set satisfy any one of the following: default, network side configuration, and calculation based on two amplitude parameters configured by the network side.

[0234] Optionally, the obtaining module 41 is specifically configured to perform at least one of the following:

[0235] M phase coefficients are calculated based on the phases of N-1 PMIs and the phase of a reference PMI; wherein the reference PMI is a PMI other than the N-1 PMIs in the N PMIs;

[0236] M phase coefficients are calculated based on the phases of every two adjacent PMIs in the N PMIs;

[0237] M amplitude coefficients are calculated based on the amplitudes of N-1 PMIs and the amplitude of a reference PMI; wherein the reference PMI is a PMI other than the N-1 PMIs in the N PMIs;

[0238] M amplitude coefficients are calculated based on the amplitudes of every two adjacent PMIs in the N PMIs.

[0239] Optionally, the reference PMI is calculated by the terminal based on a reference CMR or a reference CMR port group.

[0240] Optionally, the information reporting device 40 further includes:

[0241] The first determining module is configured to determine the reference CMR or the reference CMR port group based on at least one of the following:

[0242] received high-layer signaling; and a preset rule.

[0243] Optionally, when M phase coefficients are calculated based on the phase of each two adjacent PMIs in the N PMIs, and / or M amplitude coefficients are calculated based on the amplitude of each two adjacent PMIs in the N PMIs, the N PMIs satisfy any one of the following:

[0244] arranged in the configuration order of the plurality of CMRs;

[0245] arranged in the configuration order of the plurality of CMR port groups;

[0246] arranged in the order of the resource identifiers of the plurality of CMRs.

[0247] Optionally, the information reporting device 40 further comprises:

[0248] The second determining module is configured to determine the arrangement order of the N PMIs based on received high-layer signaling, wherein the high-layer signaling implicitly or explicitly indicates the arrangement order of the N PMIs.

[0249] Optionally, when M phase coefficients are calculated based on the phase of N-1 PMIs and the phase of a reference PMI, the obtaining module 41 is specifically configured to calculate the phase difference between each PMI in the N-1 PMIs and the reference PMI to obtain the M phase coefficients.

[0250] Optionally, when M phase coefficients are calculated based on the phase of each two adjacent PMIs in the N PMIs, the obtaining module 41 is specifically configured to calculate the phase difference between each two adjacent PMIs in the N PMIs to obtain the M phase coefficients.

[0251] Optionally, when M amplitude coefficients are calculated based on the amplitude of N-1 PMIs and the amplitude of a reference PMI, the obtaining module 41 is specifically configured to calculate the amplitude quotient between each PMI in the N-1 PMIs and the reference PMI to obtain the M amplitude coefficients.

[0252] Optionally, when M amplitude coefficients are calculated based on the amplitude of each two adjacent PMIs in the N PMIs, the obtaining module 41 is specifically configured to calculate the amplitude quotient between each two adjacent PMIs in the N PMIs to obtain the M amplitude coefficients.

[0253] Optionally, the information reporting device 40 further comprises:

[0254] The first sending module is configured to send first indication information to a network side device.

[0255] The first indication information is used to explicitly indicate the N and implicitly indicate the M, or the first indication information is used to explicitly indicate the M and implicitly indicate the N.

[0256] Optionally, the first sending module is specifically configured to send the first indication information to the network side device in a case where a first condition is met, and the first condition includes at least one of the following:

[0257] The N is less than a number of CMRs used to calculate cooperative transmission CSI, and the value of N is selected by a terminal.

[0258] The N is less than a number of CMR port groups used to calculate cooperative transmission CSI, and the value of N is selected by a terminal.

[0259] Optionally, the first indication information is carried in Part 1 of a CSI report reported by the terminal.

[0260] Optionally, the reporting module 42 is specifically configured to map the M pieces of phase-related information into uplink control information (UCI) for reporting, and the M pieces of phase-related information satisfy any one of the following:

[0261] For any one of a Type 1 codebook, a Type 2 codebook, and a Type 2 port selection codebook, the mapping priority of the M pieces of phase-related information in the UCI is higher than the mapping priority of a subband CSI part in the UCI.

[0262] For any one of an enhanced Type 2 codebook, an enhanced Type 2 port selection codebook, and a further enhanced Type 2 port selection codebook, the mapping priority of the M pieces of phase-related information in the UCI is higher than the mapping priority of PMI amplitude phase information indication and window information indication in the UCI.

[0263] The information reporting apparatus 40 in the embodiments of the present application can be an electronic device, for example, an electronic device with an operating system, or a component in an electronic device, for example, an integrated circuit or a chip. The electronic device can be a terminal or other devices other than the terminal. Exemplarily, the terminal can include, but is not limited to, the types of the terminal 11 listed above, and the other devices can be a server, a network attached storage (NAS), etc., which are not limited in the embodiments of the present application.

[0264] The information reporting apparatus 40 provided in the embodiments of the present application can achieve the following technical effects. Figure 2The method embodiments of the method achieve various processes and achieve the same technical effects, and to avoid repetition, details are not repeated here.

[0265] The information determination method provided by the embodiments of the present application is executed by the information determination device. The information determination device provided by the embodiments of the present application is described by taking the information determination device as an example.

[0266] Please refer to Figure 5 , Figure 5 is a structural schematic diagram of an information determination device provided by the embodiments of the present application. The device is applied to a terminal, such as Figure 5 As shown in the figure, the information determination device 50 comprises:

[0267] A first receiving module 51 is configured to receive N PMIs related to a CMR and M phase-related information between the N PMIs from a terminal; the N is an integer greater than 1, and the M is an integer greater than or equal to 1;

[0268] A third determining module 52 is configured to determine a PMI for cooperative transmission according to the N PMIs and the M phase-related information.

[0269] Optionally, the third determining module 52 is specifically configured to process the N PMIs according to the M phase-related information to obtain the PMI for cooperative transmission.

[0270] Optionally, the value of the N is related to at least one of the following:

[0271] The number of CMRs used to calculate cooperative transmission channel state information (CSI);

[0272] The number of CMR port groups used to calculate cooperative transmission CSI.

[0273] Optionally, the value of the M is related to any one of the following:

[0274] The value of the N;

[0275] The value of the N and the value of the rank of the PMI;

[0276] The value of the N and the number of measurement subbands;

[0277] The value of the N and the number of measurement time-domain taps;

[0278] The value of the N, the value of the rank of the PMI, and the number of measurement subbands;

[0279] The value of the N, the value of the rank of the PMI, and the number of measurement time-domain taps.

[0280] Optionally, the information determining apparatus 50 further comprises:

[0281] a second sending module, configured to send first configuration information to the terminal; wherein the first configuration information is used to configure the value of the N for the terminal; or send second indication information to the terminal; wherein the second indication information is used to indicate the value of the N.

[0282] Optionally, the information determining apparatus 50 further comprises:

[0283] a third sending module, configured to send second configuration information to the terminal; wherein the second configuration information is used to configure at least one of the following for the terminal:

[0284] a first candidate value set; wherein the first candidate value set comprises a group of phase quantization values, the group of phase quantization values corresponding to wideband phase coefficients or subband phase coefficients; or the first candidate value set comprises two groups of phase quantization values, a first group of phase quantization values in the two groups of phase quantization values corresponding to wideband phase coefficients, and a second group of phase quantization values corresponding to subband phase coefficients;

[0285] a second candidate value set; wherein the second candidate value set comprises a group of amplitude quantization values, the group of amplitude quantization values corresponding to wideband amplitude coefficients or subband amplitude coefficients; or the second candidate value set comprises two groups of amplitude quantization values, a first group of amplitude quantization values in the two groups of amplitude quantization values corresponding to wideband amplitude coefficients, and a second group of amplitude quantization values corresponding to subband amplitude coefficients;

[0286] one phase parameter, the one phase parameter being used to calculate a group of phase quantization values, the group of phase quantization values corresponding to wideband phase coefficients or subband phase coefficients;

[0287] two phase parameters, the two phase parameters being used to calculate two groups of phase quantization values, a first group of phase quantization values in the two groups of phase quantization values corresponding to wideband phase coefficients, and a second group of phase quantization values corresponding to subband phase coefficients;

[0288] one amplitude parameter, the one amplitude parameter being used to calculate a group of amplitude quantization values, the group of amplitude quantization values corresponding to wideband amplitude coefficients or subband amplitude coefficients;

[0289] two amplitude parameters, the two amplitude parameters being used to calculate two groups of amplitude quantization values, a first group of amplitude quantization values in the two groups of amplitude quantization values corresponding to wideband amplitude coefficients, and a second group of amplitude quantization values corresponding to subband amplitude coefficients.

[0290] Optionally, the information determining apparatus 50 further comprises:

[0291] The fourth sending module is configured to send third indication information to the terminal, wherein the third indication information is used to indicate a reference CMR or a reference CMR port group.

[0292] Optionally, the information determining apparatus 50 further includes:

[0293] The fifth sending module is configured to send fourth indication information to the terminal, wherein the fourth indication information is used to indicate the arrangement order of the N PMIs.

[0294] Optionally, the N PMIs satisfy any one of the following conditions:

[0295] arranged according to the configuration order of the CMRs;

[0296] arranged according to the configuration order of the CMR port groups;

[0297] arranged according to the order of the resource identifiers of the CMRs.

[0298] Optionally, the information determining apparatus 50 further includes:

[0299] The second receiving module is configured to receive first indication information from the terminal, wherein the first indication information is used to explicitly indicate the N and implicitly indicate the M; or the first indication information is used to explicitly indicate the M and implicitly indicate the N.

[0300] Optionally, the first indication information is carried in Part 1 of a CSI report reported by the terminal.

[0301] The information determining apparatus 50 provided by the embodiments of the present application can realize each process of the method embodiments and achieve the same technical effects, and thus, details are not repeated here. Figure 3

[0302] Optionally, as shown in Figure 6 the embodiments of the present application further provide a communication device 60, which includes a processor 61 and a memory 62, and the memory 62 has stored programs or instructions which can be run on the processor 61. For example, when the communication device 60 is a terminal, the programs or instructions are executed by the processor 61 to realize each step of the above information reporting method embodiments and achieve the same technical effects. When the communication device 60 is a network side device, the programs or instructions are executed by the processor 61 to realize each step of the above information determining method embodiments and achieve the same technical effects. To avoid repetition, details are not repeated here.

[0303] ​The terminal provided in the embodiments of the present application comprises a processor and a communication interface. The processor is configured to acquire N PMIs related to a CMR and acquire M phase correlation information between the N PMIs. The N is an integer greater than 1, and the M is an integer greater than or equal to 1. The communication interface is configured to report the N PMIs and the M phase correlation information. The terminal embodiment corresponds to the terminal-side method embodiment described above. Each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved.

[0304] Specifically, Figure 7 A hardware structure diagram of a terminal for implementing the embodiments of the present application is provided.

[0305] The terminal 700 comprises, but is not limited to, at least part of components such as a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

[0306] Those skilled in the art can understand that the terminal 700 can further comprise a power supply (such as a battery) for supplying power to each component. The power supply can be logically connected to the processor 710 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system. Figure 7 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal can comprise more or fewer components than those shown in the figure, or some components can be combined, or different components can be arranged, which will not be described here.

[0307] It should be understood that, in the embodiments of the present application, the input unit 704 can comprise a graphics processing unit (GPU) 7041 and a microphone 7042. The graphics processor 7041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 can comprise a display panel 7061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 707 comprises at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 can comprise a touch detection device and a touch controller. The other input devices 7072 can comprise, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), a trackball, a mouse, a joystick, etc., which will not be described here.

[0308] In the embodiments of the present application, the radio frequency unit 701 can transmit the downlink data received from the network side device to the processor 710 for processing; in addition, the radio frequency unit 701 can send uplink data to the network side device. Generally, the radio frequency unit 701 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0309] The memory 709 can be used to store software programs or instructions and various data. The memory 709 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, at least one application program or instruction required by a function (such as a sound playing function, an image playing function, etc.), etc. In addition, the memory 709 can include a volatile memory or a non-volatile memory, or the memory 709 can include both volatile and non-volatile memories. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 709 in the embodiments of the present application includes but is not limited to these and any other suitable types of memories.

[0310] The processor 710 can include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 710.

[0311] The processor 710 is used to acquire N PMIs related to CMR and M phase-related information between the N PMIs; where N is an integer greater than 1 and M is an integer greater than or equal to 1.

[0312] Radio frequency unit 701 is used to report the N PMIs and the M phase-related information.

[0313] The terminal 700 provided in this embodiment can achieve... Figure 2 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0314] This application embodiment also provides a network-side device, including a processor and a communication interface. The communication interface is used to receive from a terminal N PMIs related to CMR and M phase-related information between the N PMIs, where N is an integer greater than 1 and M is an integer greater than or equal to 1. The processor is used to determine the PMIs used for cooperative transmission based on the N PMIs and the M phase-related information. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above method embodiments can be applied to this network-side device embodiment and achieve the same technical effects.

[0315] Specifically, embodiments of this application also provide a network-side device. For example... Figure 8 As shown, the network-side device 80 includes: an antenna 81, a radio frequency (RF) device 82, a baseband device 83, a processor 84, and a memory 85. The antenna 81 is connected to the RF device 82. In the uplink direction, the RF device 82 receives information through the antenna 81 and transmits the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be transmitted and sends it to the RF device 82. The RF device 82 processes the received information and then transmits it through the antenna 81.

[0316] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 83, which includes a baseband processor.

[0317] Baseband device 83 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 8 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 85 via a bus interface to call the program in the memory 85 and execute the network device operation shown in the above method embodiment.

[0318] The network-side device may also include a network interface 86, such as a common public radio interface (CPRI).

[0319] Specifically, the network side device 80 of the embodiment of the present application further comprises instructions or programs stored on the memory 85 and executable on the processor 84, and the processor 84 invokes the instructions or programs in the memory 85 to execute the method performed by each module shown in the figure and achieve the same technical effects. To avoid repetition, the details are not described here. Figure 5

[0320] The embodiment of the present application further provides a readable storage medium, and the readable storage medium stores programs or instructions, the programs or instructions are executed by a processor to implement each process of the information reporting method embodiment or implement each process of the information determination method embodiment, and the same technical effects can be achieved. To avoid repetition, the details are not described here.

[0321] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0322] The embodiment of the present application further provides a chip, and the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used to run programs or instructions to implement each process of the information reporting method embodiment or implement each process of the information determination method embodiment, and the same technical effects can be achieved. To avoid repetition, the details are not described here.

[0323] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system level chip, a system chip, a chip system or a system on chip, etc.

[0324] The embodiment of the present application further provides a computer program / program product, and the computer program / program product is stored in a storage medium, and the computer program / program product is executed by at least one processor to implement each process of the information reporting method embodiment or implement each process of the information determination method embodiment, and the same technical effects can be achieved. To avoid repetition, the details are not described here.

[0325] The embodiment of the present application further provides a communication system, and the communication system includes a terminal and a network side device, the terminal can be used to execute the steps of the information reporting method, and the network side device can be used to execute the steps of the information determination method.

[0326] ​It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the method and apparatus of the present application can be carried out by more than one process, method, article, or apparatus either simultaneously, concurrently, or with intervening action that are carried out at the same time, in any order, or in an overlapping manner. For example, the described method can be performed in a different order or simultaneously, and the various steps can be combined or omitted, or additional steps can be added, without departing from the scope of the described method. Also, features described with respect to certain examples can be combined in other examples.

[0327] From the above description of the embodiments, it is apparent that the above-described method can be implemented by means of software and the requisite universal hardware platform, of course, but in many cases the former is the preferred implementation. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product stored in a storage medium (such as a ROM / RAM, a magnetic disk, an optical disk), including a number of instructions for causing a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the method described in the various embodiments of the present application.

[0328] The embodiments of the present application are described above in conjunction with the drawings, but the present application is not limited to the specific embodiments described above, which are merely illustrative rather than restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. An information reporting method, characterized in that, include: The terminal acquires N precoding matrix indicators (PMIs) related to channel measurement resources (CMRs), and acquires M phase-related information among the N PMIs; N is an integer greater than 1, and M is an integer greater than or equal to 1; The terminal reports the N PMIs and the M phase-related information; The phase-related information includes any one of the following: Phase coefficient; Phase coefficient and amplitude coefficient; Wherein, obtaining the M phase-related information among the N PMIs includes at least one of the following: The terminal calculates M phase coefficients based on the phases of N-1 PMIs and the phase of a reference PMI; wherein the reference PMI is the PMI other than the N-1 PMIs among the N PMIs. The terminal calculates M phase coefficients based on the phase of every two adjacent PMIs among the N PMIs; The terminal calculates M amplitude coefficients based on the amplitudes of N-1 PMIs and the amplitude of a reference PMI; wherein the reference PMI is the PMI other than the N-1 PMIs among the N PMIs. The terminal calculates M amplitude coefficients based on the amplitude of every two adjacent PMIs among the N PMIs; The reference PMI is calculated by the terminal based on the reference CMR or the reference CMR port group.

2. The method according to claim 1, characterized in that, The acquisition of N precoding matrix indicators (PMIs) related to channel measurement resources (CMRs) includes: The terminal calculates the PMI based on each CMR or each CMR port group configured on the terminal, and obtains multiple PMIs. The terminal selects the N PMIs from the plurality of PMIs.

3. The method according to claim 1, characterized in that, The value of N is determined by at least one of the following methods: Network side configuration; Terminal selection; High-level signaling instructions.

4. The method according to claim 1, characterized in that, The value of N is related to at least one of the following: The number of CMRs used to calculate Cooperative Transport Channel State Information (CSI); The number of CMR port groups used to calculate the number of cooperative transmission CSI.

5. The method according to claim 1, characterized in that, The value of M is related to any of the following: The value of N; The value of N and the value of the rank of PMI; The value of N and the number of measurement sub-bands; The value of N and the number of time-domain taps used for measurement; The value of N, the value of the rank of PMI, and the number of measurement sub-bands; The value of N, the value of the rank of PMI, and the number of measurement time-domain taps.

6. The method according to claim 5, characterized in that, When the value of M is related to the value of N, M equals N-1; When the value of M is related to the value of N and the rank of PMI, the value of M is equal to (N-1) * a; When the value of M is related to the value of N and the number of measurement sub-bands, M is equal to (N-1) * b; When the value of M is related to the value of N, the rank of PMI, and the number of measurement sub-bands, the value of M is equal to (N-1) * a * b; When the value of M is related to the value of N and the number of measurement time-domain taps, M is equal to (N-1) * c; When the value of M is related to the value of N, the rank of PMI, and the number of measurement time-domain taps, the value of M is equal to (N-1) * a * c; Where a is the rank value of the PMI, b is the number of measurement sub-bands, c is the number of measurement time-domain taps, and * represents the multiplication sign.

7. The method according to claim 1, characterized in that, When the phase-related information includes phase coefficients, the M phase-related information items include M phase coefficients; the terminal reports the M phase-related information items, including: The terminal reports the first quantized value of each of the M phase coefficients; or, When the phase-related information includes phase coefficients and amplitude coefficients, the M phase-related information items include M phase coefficients and M amplitude coefficients; the terminal reports the M phase-related information items, including: The terminal reports the second quantization value of each of the M phase coefficients and the third quantization value of each of the M amplitude coefficients.

8. The method according to claim 7, characterized in that, The first quantization value or the second quantization value is any one of all phase quantization values ​​in the first candidate value set; the first candidate value set includes a set of phase quantization values, the set of phase quantization values ​​corresponding to a wideband phase coefficient or a subband phase coefficient; or, the first candidate value set includes two sets of phase quantization values, the first set of phase quantization values ​​corresponding to a wideband phase coefficient and the second set of phase quantization values ​​corresponding to a subband phase coefficient. The third quantization value is any one of all amplitude quantization values ​​in the second candidate value set; the second candidate value set includes a set of amplitude quantization values, which correspond to a wideband amplitude coefficient or a subband amplitude coefficient; or, the second candidate value set includes two sets of amplitude quantization values, where the first set of amplitude quantization values ​​corresponds to a wideband amplitude coefficient and the second set of amplitude quantization values ​​corresponds to a subband amplitude coefficient.

9. The method according to claim 8, characterized in that, A set of phase quantization values ​​in the first candidate value set satisfies any one of the following: default, network-side configured, or calculated based on a phase parameter configured on the network side; The two sets of phase quantization values ​​in the first candidate value set satisfy any one of the following: the default, the network-side configured, or calculated based on two phase parameters configured on the network side; A set of amplitude quantization values ​​in the second candidate value set satisfies any one of the following: default, network-side configured, or calculated based on an amplitude parameter configured on the network side; The two sets of amplitude quantization values ​​in the second candidate value set satisfy any one of the following: the default, the network-side configured, or calculated based on the two amplitude parameters configured on the network side.

10. The method according to claim 1, characterized in that, The method further includes: The terminal determines the reference CMR or the reference CMR port group based on at least one of the following: Received high-level signaling; Preset rules.

11. The method according to claim 1, characterized in that, When M phase coefficients are calculated based on the phase of every two adjacent PMIs among the N PMIs, and / or M amplitude coefficients are calculated based on the amplitude of every two adjacent PMIs among the N PMIs, the N PMIs satisfy any one of the following: Arranged according to the configuration order of multiple CMRs; Arranged according to the configuration order of multiple CMR port groups; Arranged in the order of resource identifiers of multiple CMRs.

12. The method according to claim 1 or 11, characterized in that, The method further includes: The terminal determines the arrangement order of the N PMIs based on the received higher-layer signaling; wherein the higher-layer signaling implicitly or explicitly indicates the arrangement order of the N PMIs.

13. The method according to claim 1, characterized in that, Based on the phases of N-1 PMIs and the phase of the reference PMI, M phase coefficients are calculated, including: The terminal calculates the phase difference between each of the N-1 PMIs and the reference PMI to obtain the M phase coefficients; Specifically, based on the phase of every two adjacent PMIs among the N PMIs, M phase coefficients are calculated, including: The terminal calculates the phase difference between every two adjacent PMIs to obtain the M phase coefficients; Among them, the calculation of M amplitude coefficients based on the amplitudes of N-1 PMIs and the amplitude of the reference PMI includes: The terminal calculates the amplitude quotient for each of the N-1 PMIs and the reference PMI to obtain the M amplitude coefficients; Specifically, the calculation of M amplitude coefficients based on the amplitudes of every two adjacent PMIs among the N PMIs includes: The terminal calculates the amplitude quotient for every two adjacent PMIs to obtain the M amplitude coefficients.

14. The method according to claim 1, characterized in that, The method further includes: The terminal sends a first instruction message to the network-side device; Wherein, the first indication information is used to explicitly indicate N and implicitly indicate M; or, the first indication information is used to explicitly indicate M and implicitly indicate N.

15. The method according to claim 14, characterized in that, Sending the first indication information to the network-side device includes: When the first condition is met, the terminal sends the first indication information to the network-side device; The first condition includes at least one of the following: The value of N is less than the number of CMRs used to calculate the Cooperative Transmission CSI, and the value of N is selected by the terminal. The value of N is less than the number of CMR port groups used to calculate the cooperative transmission CSI, and the value of N is selected by the terminal.

16. The method according to claim 14 or 15, characterized in that, The first indication information carries the first part, Part 1, of the CSI report reported on the terminal.

17. The method according to claim 1, characterized in that, The reporting of the N PMIs and the M phase-related information includes: The terminal maps the M phase-related information to uplink control information (UCI) for reporting. Wherein, the M phase-related information satisfy any one of the following: For any of the Type1 codebook, Type2 codebook, and Type2 port selection codebook, the mapping priority of the M phase-related information items in the UCI is higher than the mapping priority of the sub-band CSI portion in the UCI. For any of the enhanced Type 2 codebook, the enhanced Type 2 port selection codebook, or the further enhanced Type 2 port selection codebook, the mapping priority of the M phase-related information in the UCI is higher than the mapping priority of the PMI amplitude phase information indication and window information indication in the UCI.

18. An information determination method, characterized in that, include: The network-side device receives from the terminal N PMIs related to CMR and M phase-related information between the N PMIs; N is an integer greater than 1, and M is an integer greater than or equal to 1; The network-side device determines the PMI used for cooperative transmission based on the N PMIs and the M phase-related information. The phase-related information includes any one of the following: Phase coefficient; Phase coefficient and amplitude coefficient; The M phase-related information items include at least one of the following: Based on the phases of N-1 PMIs and the phase of a reference PMI, M phase coefficients are calculated; wherein, the reference PMI is the PMI other than the N-1 PMIs among the N PMIs. Based on the phase of every two adjacent PMIs among the N PMIs, M phase coefficients are calculated; Based on the magnitudes of N-1 PMIs and the magnitude of a reference PMI, M magnitude coefficients are calculated; wherein, the reference PMI is the PMI other than the N-1 PMIs among the N PMIs. Based on the magnitude of every two adjacent PMIs among the N PMIs, M magnitude coefficients are calculated; The reference PMI is calculated by the terminal based on the reference CMR or the reference CMR port group.

19. The method according to claim 18, characterized in that, The step of determining the PMI for cooperative transmission based on the N PMIs and the M phase-related information includes: The network-side device processes the N PMIs based on the M phase-related information to obtain the PMI used for cooperative transmission.

20. The method according to claim 18, characterized in that, The value of N is related to at least one of the following: The number of CMRs used to calculate Cooperative Transport Channel State Information (CSI); The number of CMR port groups used to calculate the number of cooperative transmission CSI.

21. The method according to claim 18, characterized in that, The value of M is related to any of the following: The value of N; The value of N and the value of the rank of PMI; The value of N and the number of measurement sub-bands; The value of N and the number of time-domain taps used for measurement; The value of N, the value of the rank of PMI, and the number of measurement sub-bands; The value of N, the value of the rank of PMI, and the number of measurement time-domain taps.

22. The method according to claim 18, characterized in that, The method also includes the following: The network-side device sends first configuration information to the terminal; wherein, the first configuration information is used to configure the value of N for the terminal; The network-side device sends a second indication message to the terminal; wherein the second indication message is used to indicate the value of N.

23. The method according to claim 18, characterized in that, The method further includes: The network-side device sends second configuration information to the terminal; The second configuration information is used to configure at least one of the following for the terminal: A first candidate value set; wherein the first candidate value set includes a set of phase quantization values, the set of phase quantization values ​​corresponding to a wideband phase coefficient or a subband phase coefficient; or, the first candidate value set includes two sets of phase quantization values, the first set of phase quantization values ​​corresponding to a wideband phase coefficient and the second set of phase quantization values ​​corresponding to a subband phase coefficient. A second set of candidate values; wherein the second set of candidate values ​​includes a set of amplitude quantization values, the set of amplitude quantization values ​​corresponding to a wideband amplitude coefficient or a subband amplitude coefficient; or, the second set of candidate values ​​includes two sets of amplitude quantization values, the first set of amplitude quantization values ​​corresponding to a wideband amplitude coefficient and the second set of amplitude quantization values ​​corresponding to a subband amplitude coefficient. A phase parameter, wherein the phase parameter is used to calculate a set of phase quantization values, the set of phase quantization values ​​corresponding to a broadband phase coefficient or a sub-band phase coefficient; Two phase parameters are used to calculate two sets of phase quantization values. The first set of phase quantization values ​​corresponds to the broadband phase coefficient, and the second set of phase quantization values ​​corresponds to the sub-band phase coefficient. An amplitude parameter, wherein the amplitude parameter is used to calculate a set of amplitude quantization values, the set of amplitude quantization values ​​corresponding to a wideband amplitude coefficient or a subband amplitude coefficient; Two amplitude parameters are used to calculate two sets of amplitude quantization values. The first set of amplitude quantization values ​​corresponds to the wideband amplitude coefficient, and the second set of amplitude quantization values ​​corresponds to the subband amplitude coefficient.

24. The method according to claim 18, characterized in that, The method further includes: The network-side device sends a third indication message to the terminal; wherein the third indication message is used to indicate a reference CMR or a reference CMR port group.

25. The method according to claim 18, characterized in that, The method further includes: The network-side device sends a fourth indication information to the terminal; wherein the fourth indication information is used to indicate the arrangement order of the N PMIs.

26. The method according to claim 18 or 25, characterized in that, The N PMIs satisfy any one of the following: Arranged according to the configuration order of multiple CMRs; Arranged according to the configuration order of multiple CMR port groups; Arranged in the order of resource identifiers of multiple CMRs.

27. The method according to claim 18, characterized in that, The method further includes: The network-side device receives first indication information from the terminal; Wherein, the first indication information is used to explicitly indicate N and implicitly indicate M; or, the first indication information is used to explicitly indicate M and implicitly indicate N.

28. The method according to claim 27, characterized in that, The first indication information carries Part 1 of the CSI report reported on the terminal.

29. An information reporting device, characterized in that, include: The acquisition module is used to acquire N PMIs related to CMR and to acquire M phase-related information between the N PMIs; N is an integer greater than 1, and M is an integer greater than or equal to 1; The reporting module is used to report the N PMIs and the M phase-related information. The phase-related information includes any one of the following: Phase coefficient; Phase coefficient and amplitude coefficient; Specifically, the acquisition module is used to perform at least one of the following: Based on the phases of N-1 PMIs and the phase of a reference PMI, M phase coefficients are calculated; wherein, the reference PMI is the PMI other than the N-1 PMIs among the N PMIs. Based on the phase of every two adjacent PMIs among the N PMIs, M phase coefficients are calculated; Based on the magnitudes of N-1 PMIs and the magnitude of a reference PMI, M magnitude coefficients are calculated; wherein, the reference PMI is the PMI other than the N-1 PMIs among the N PMIs. Based on the magnitude of every two adjacent PMIs among the N PMIs, M magnitude coefficients are calculated; The reference PMI is calculated by the information reporting device based on the reference CMR or the reference CMR port group.

30. An information determining device, characterized in that, include: The first receiving module is configured to receive from the terminal N PMIs related to CMR and M phase-related information between the N PMIs; N is an integer greater than 1, and M is an integer greater than or equal to 1; The third determining module is used to determine the PMI for cooperative transmission based on the N PMIs and the M phase-related information. The phase-related information includes any one of the following: Phase coefficient; Phase coefficient and amplitude coefficient; The M phase-related information items include at least one of the following: Based on the phases of N-1 PMIs and the phase of a reference PMI, M phase coefficients are calculated; wherein, the reference PMI is the PMI other than the N-1 PMIs among the N PMIs. Based on the phase of every two adjacent PMIs among the N PMIs, M phase coefficients are calculated; Based on the magnitudes of N-1 PMIs and the magnitude of a reference PMI, M magnitude coefficients are calculated; wherein, the reference PMI is the PMI other than the N-1 PMIs among the N PMIs. Based on the magnitude of every two adjacent PMIs among the N PMIs, M magnitude coefficients are calculated; The reference PMI is calculated by the terminal based on the reference CMR or the reference CMR port group.

31. A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the information reporting method as described in any one of claims 1 to 17.

32. A network-side device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the information determination method as described in any one of claims 18 to 28.

33. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the information reporting method as described in any one of claims 1 to 17, or the steps of the information determination method as described in any one of claims 18 to 28.

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