Information transmission method and apparatus, and device

Abstract

Provided in the present disclosure are an information transmission method and apparatus, and a device. The information transmission method comprises: determining target configuration information on the basis of a selected CSI-RS pattern; and sending the target configuration information to a terminal, wherein the number of ports corresponding to a CSI-RS is greater than 32, the CSI-RS pattern is a pattern in one or two slots in the time domain and in one or two PRBs in the frequency domain, the CSI-RS pattern is obtained by aggregating at least one CDM-type pattern by means of TDM and / or FDM, a CDM type comprises at least one of the following: a 16-port pattern type, a 32-port pattern type, an 8-port pattern type, a 4-port pattern type and a 2-port pattern type, the target configuration information comprises: the number of antenna ports, density information, CDM type information, CDM group frequency-domain position indication information and CDM group time-domain position indication information, and one CDM group corresponds to one CDM type.

Description

Information transmission method, device and equipment

[0001] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on November 17, 2023, with application number 202311535104.8 and application name “A method, device and apparatus for information transmission,” the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the field of communication technologies, and in particular to an information transmission method, apparatus, and device. Background Art

[0003] The performance of massive Multiple Input Multiple Output (MIMO) depends on the number of antennas. Larger antenna arrays and more RF links lead to better performance. Currently, a Channel State Information-Reference Signal (CSI-RS) resource supports only 32 antenna ports. As the number of antenna elements in the antenna array increases, CSI-RS resources with more than 32 ports will be needed for channel measurement. Considering expanding the number of antenna ports per CSI-RS resource to more than 32 ports will benefit system performance.

[0004] However, the current New Radio (NR) system does not support CSI-RS resources greater than 32 ports. Therefore, there is no standardized solution for the following:

[0005] How to design a CSI-RS pattern with more than 32 ports, that is, the distribution of its occupied resource elements (REs) within one or two time slots and one or two physical resource blocks (PRBs).

[0006] Based on the above, the related art cannot realize the transmission of relevant information corresponding to a CSI-RS pattern with more than 32 ports.

[0007] Summary of the Invention

[0008] The present disclosure aims to provide an information transmission method, apparatus and device to solve the problem in related technologies that it is impossible to transmit relevant information corresponding to a CSI-RS pattern with more than 32 ports.

[0009] In order to solve the above technical problems, the present disclosure provides an information transmission method applied to a network device, including:

[0010] Determining target configuration information according to the selected channel state information reference signal CSI-RS pattern;

[0011] Sending the target configuration information to the terminal;

[0012] The number of ports corresponding to the CSI-RS is greater than 32;

[0013] The CSI-RS pattern is a pattern within one or two time slots in the time domain and within one or two physical resource blocks (PRBs) in the frequency domain; the CSI-RS pattern is obtained by aggregating at least one code division multiplexing (CDM) type pattern through time division multiplexing (TDM) and / or frequency division multiplexing (FDM); the CDM type includes at least one of the following:

[0014] 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type, and 2-port pattern type;

[0015] The target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

[0016] The present disclosure also provides an information transmission method, which is applied to a terminal and includes:

[0017] receiving target configuration information sent by the network device;

[0018] Determining a selected CSI-RS pattern according to the target configuration information;

[0019] The number of ports corresponding to the CSI-RS is greater than 32;

[0020] The CSI-RS pattern is a pattern within one or two time slots in the time domain and within one or two PRBs in the frequency domain; the CSI-RS pattern is obtained by aggregating at least one CDM type pattern through TDM and / or FDM; the CDM type includes at least one of the following:

[0021] 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type, and 2-port pattern type;

[0022] The target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

[0023] The present disclosure also provides an information transmission device, which is a network device and includes a memory, a transceiver, and a processor.

[0024] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0025] Determining target configuration information according to the selected channel state information reference signal CSI-RS pattern;

[0026] sending the target configuration information to the terminal via the transceiver;

[0027] The number of ports corresponding to the CSI-RS is greater than 32;

[0028] The CSI-RS pattern is a pattern within one or two time slots in the time domain and within one or two physical resource blocks (PRBs) in the frequency domain; the CSI-RS pattern is obtained by aggregating at least one code division multiplexing (CDM) type pattern through time division multiplexing (TDM) and / or frequency division multiplexing (FDM); the CDM type includes at least one of the following:

[0029] 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type, and 2-port pattern type;

[0030] The target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

[0031] The present disclosure also provides an information transmission device, which is a terminal and includes a memory, a transceiver, and a processor.

[0032] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0033] receiving target configuration information sent by a network device via the transceiver;

[0034] Determining a selected CSI-RS pattern according to the target configuration information;

[0035] The number of ports corresponding to the CSI-RS is greater than 32;

[0036] The CSI-RS pattern is a pattern within one or two time slots in the time domain and within one or two PRBs in the frequency domain; the CSI-RS pattern is obtained by aggregating at least one CDM type pattern through TDM and / or FDM; the CDM type includes at least one of the following:

[0037] 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type, and 2-port pattern type;

[0038] The target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

[0039] The present disclosure also provides an information transmission device, which is applied to a network device and includes:

[0040] A first determining unit is configured to determine target configuration information according to a selected channel state information reference signal CSI-RS pattern;

[0041] A first sending unit, configured to send the target configuration information to a terminal;

[0042] The number of ports corresponding to the CSI-RS is greater than 32;

[0043] The CSI-RS pattern is a pattern within one or two time slots in the time domain and within one or two physical resource blocks (PRBs) in the frequency domain; the CSI-RS pattern is obtained by aggregating at least one code division multiplexing (CDM) type pattern through time division multiplexing (TDM) and / or frequency division multiplexing (FDM); the CDM type includes at least one of the following:

[0044] 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type, and 2-port pattern type;

[0045] The target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

[0046] The present disclosure also provides an information transmission device, which is applied to a terminal and includes:

[0047] A first receiving unit, configured to receive target configuration information sent by a network device;

[0048] A second determining unit, configured to determine a selected CSI-RS pattern according to the target configuration information;

[0049] The number of ports corresponding to the CSI-RS is greater than 32;

[0050] The CSI-RS pattern is a pattern within one or two time slots in the time domain and within one or two PRBs in the frequency domain; the CSI-RS pattern is obtained by aggregating at least one CDM type pattern through TDM and / or FDM; the CDM type includes at least one of the following:

[0051] 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type, and 2-port pattern type;

[0052] The target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

[0053] An embodiment of the present disclosure further provides a non-transitory readable storage medium storing a computer program, wherein the computer program is used to enable a processor to execute the above-mentioned method on the network device side or the terminal side.

[0054] The beneficial effects of the above technical solutions disclosed herein are as follows:

[0055] In the above scheme, the information transmission method determines the target configuration information according to the selected channel state information reference signal CSI-RS pattern; sends the target configuration information to the terminal; wherein the number of ports corresponding to the CSI-RS is greater than 32; the CSI-RS pattern is a pattern that is within one or two time slots in the time domain and within one or two physical resource blocks PRB in the frequency domain; the CSI-RS pattern is aggregated by at least one code division multiplexing CDM type pattern through time division multiplexing TDM and / or frequency division multiplexing FDM; the CDM type includes at least one of the following: 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type and 2-port pattern type; the target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information; one CDM group corresponds to one CDM type; and it can support the transmission of relevant information corresponding to CSI-RS patterns with more than 32 ports. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] FIG1 is a schematic diagram of a wireless communication system architecture according to an embodiment of the present disclosure;

[0057] FIG2 is a schematic diagram of a CDM pattern according to an embodiment of the present disclosure;

[0058] FIG3 is a flowchart of an information transmission method according to an embodiment of the present disclosure;

[0059] FIG4 is a second flow chart of the information transmission method according to an embodiment of the present disclosure;

[0060] FIG5 is a schematic diagram of a CSI-RS pattern according to an embodiment of the present disclosure;

[0061] FIG6 is a second schematic diagram of a CSI-RS pattern according to an embodiment of the present disclosure;

[0062] FIG7 is a third schematic diagram of a CSI-RS pattern according to an embodiment of the present disclosure;

[0063] FIG8 is a first structural diagram of an information transmission device according to an embodiment of the present disclosure;

[0064] FIG9 is a second structural diagram of an information transmission device according to an embodiment of the present disclosure;

[0065] FIG10 is a structural diagram of an information transmission device according to an embodiment of the present disclosure;

[0066] FIG11 is a second structural diagram of the information transmission device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0067] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0068] In the embodiments of the present disclosure, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0069] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0070] It is explained here that the technical solution provided by the embodiment of the present disclosure can be applicable to a variety of systems, especially the fifth generation mobile communication technology (5th-Generation, 5G) system. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, etc. These various systems include terminal devices and network devices. The system may also include core network parts, such as the Evolved Packet System (EPS), 5G System (5GS), etc.

[0071] Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present disclosure may be applied. The wireless communication system includes a terminal device (also referred to as a terminal) and a network device.

[0072] The terminal device involved in the embodiments of the present disclosure may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing device connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called User Equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present disclosure.

[0073] The network device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be named by another name. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present disclosure may be a base transceiver station (BTS) in the Global System for Mobile communications (GSM) or code division multiple access (CDMA), a network device (NodeB) in wide-band code division multiple access (WCDMA), an evolutionary Node B (eNB or e-NodeB) in the long term evolution (LTE) system, a 5G base station (gNB) in the next generation system, a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of the present disclosure. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0074] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive MIMO. It can also use diversity transmission, precoding, or beamforming.

[0075] The following first introduces the contents involved in the solution provided by the embodiment of the present disclosure.

[0076] Currently, the NR system supports the following port numbers: 1, 2, 4, 8, 12, 16, 24, and 32.

[0077] NR defines three CDM patterns: Code Division Multiplexing (CDM)-2, CDM-4, ​​and CDM-8, as shown in Figure 2. FD stands for frequency division and TD stands for time division.

[0078] Specifically, the resource elements (REs) occupied by a CDM pattern constitute a CDM group, and each CDM group can include 2, 4, or 8 ports. In this way, multiple ports of CSI-RS can be distributed to multiple CDM groups of the same pattern, that is, the port distribution of CSI-RS can be determined by CDM group aggregation. NR supports a variety of flexible aggregation schemes, and for the same port configuration, supports multiple CDM group aggregation schemes. NR uses CDM group aggregation of three CDM patterns, CDM-2, CDM-4, ​​and CDM-8, to flexibly support CSI-RS with 2 to 32 ports. The following table shows the configuration relationship between the number of CSI-RS ports and CDM combinations:

[0079] The RE / RB / port in the above table represents all occupied REs divided by the number of RBs corresponding to all REs, and then divided by the total number of ports (ie, X).

[0080] Based on the foregoing, embodiments of the present disclosure provide an information transmission method, apparatus, and device to address the problem in related technologies of being unable to transmit relevant information corresponding to CSI-RS patterns with more than 32 ports. The method, apparatus, and device are based on the same patent application concept. Since the principles for solving the problems solved by the method, apparatus, and device are similar, their implementation can refer to each other, and any repetitions will not be repeated.

[0081] The information transmission method provided in the embodiment of the present disclosure is applied to a network device, as shown in FIG3 , and includes:

[0082] Step 31: Determine target configuration information based on the selected channel state information reference signal CSI-RS pattern;

[0083] The selected CSI-RS pattern may be determined by the network device based on, but not limited to, the number of antenna ports, CSI-RS transmit power requirement information, and resource occupancy of signals such as the synchronization signal block (SSB) signal, the demodulation reference signal (DMRS) signal, and the physical downlink control channel (PDCCH) signal. Target configuration information may include any information used to assist the terminal in determining the CSI-RS pattern, such as the number of antenna ports.

[0084] Step 32: Send the target configuration information to the terminal; wherein, the number of ports corresponding to the CSI-RS is greater than 32; the CSI-RS pattern is a pattern that is within one or two time slots in the time domain and within one or two physical resource blocks (PRBs) in the frequency domain; the CSI-RS pattern is aggregated by at least one code division multiplexing (CDM) type pattern through time division multiplexing (TDM) and / or frequency division multiplexing (FDM); the CDM type includes at least one of the following: a 16-port pattern type, a 32-port pattern type, an 8-port pattern type, a 4-port pattern type, and a 2-port pattern type; the target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

[0085] After step 32, the network device may transmit a CSI-RS based on the selected CSI-RS pattern; the terminal may perform CSI-RS reception measurements based on the CSI-RS pattern determined according to the target configuration information; however, this is not a limitation. Regarding "sending the target configuration information to the terminal," this may be periodic, semi-continuous, or aperiodic transmission; the sub-information included in the target configuration information is transmitted together; the density information may specifically be 1 or 0.5, etc.; the CDM type information is used to indicate at least one of a 16-port pattern type, a 32-port pattern type, an 8-port pattern type, a 4-port pattern type, and a 2-port pattern type; the resource elements (REs) occupied by a pattern of one CDM type constitute a CDM group.

[0086] The information transmission method provided by the embodiment of the present disclosure determines target configuration information according to a selected channel state information reference signal CSI-RS pattern; sends the target configuration information to a terminal; wherein the number of ports corresponding to the CSI-RS is greater than 32; the CSI-RS pattern is a pattern within one or two time slots in the time domain and within one or two physical resource blocks (PRBs) in the frequency domain; the CSI-RS pattern is composed of at least one code division multiplexing (CDM) type pattern through time division multiplexing (TDM) and / or frequency division multiplexing (FDM). The CDM type includes at least one of the following: a 16-port pattern type, a 32-port pattern type, an 8-port pattern type, a 4-port pattern type, and a 2-port pattern type; the target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, and CDM group time domain position indication information; one CDM group corresponds to one CDM type; and it can support the transmission of relevant information corresponding to a CSI-RS pattern greater than 32 ports.

[0087] The method of determining the target configuration information based on the selected channel state information reference signal CSI-RS pattern includes: determining the target configuration information based on the pattern configuration information and the selected CSI-RS pattern; wherein the pattern configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, CDM group time domain position indication information, CDM group index, frequency domain index within the CDM group, and time domain index within the CDM group.

[0088] In this way, the target configuration information can be accurately obtained, wherein the target configuration information can be part of the pattern configuration information, and the pattern configuration information can be predefined, but is not limited thereto. The pattern configuration information can be presented in a table; the CDM group frequency domain position indication information can indicate the starting position of the resources occupied by the CDM group in the frequency domain, etc.; the CDM group time domain position indication information can indicate the starting position of the resources occupied by the CDM group in the time domain, etc.; the CDM group index can refer to the index of the CDM group in all CDM groups (i.e., the CDM group set) corresponding to the CSI-RS pattern, and the numbering order of the index can correspond to the position numbering order in the position indication information combination (i.e., a combination of the CDM group frequency domain position indication information and the CDM group time domain position indication information). The position numbering order in the position indication information combination can be performed in a manner that the frequency domain numbering is increased first and then the time domain numbering is increased. For details, please refer to the following table 1. Among them, CDM group index j is Correspondingly, if the CDM group index j takes the value 0 The frequency domain index within the CDM group refers to the frequency domain index within the CDM group corresponding to each element within the CDM group, and the time domain index within the CDM group refers to the time domain index within the CDM group corresponding to each element within the CDM group.

[0089] In the embodiment of the present disclosure, the 16-port pattern type includes: cdm16-FD4-TD4 pattern type and / or cdm16-FD2-TD8 pattern type; and / or, the 32-port pattern type includes cdm32-FD4-TD8 pattern type; and / or, the 8-port pattern type includes cdm8-FD2-TD4 pattern type; and / or, the 4-port pattern type includes cdm4-FD2-TD2 pattern type; and / or, the 2-port pattern type includes fd-CDM2 pattern type; wherein, (1) the cdm16-FD4-TD4 pattern type indicates that the pattern occupies 4 consecutive resource elements RE in the frequency domain and 4 consecutive RE in the time domain; each port occupies 16 RE, and each port corresponds to a different orthogonal cover code (Orthogonal Cover Code). Code, OCC); (2) the cdm16-FD2-TD8 pattern type, indicating that the pattern occupies 2 consecutive REs in the frequency domain and 8 consecutive REs in the time domain; each port occupies 16 REs, and each port corresponds to a different OCC; (3) the cdm32-FD4-TD8 pattern type, indicating that the pattern occupies 4 consecutive REs in the frequency domain and 8 consecutive REs in the time domain; each port occupies 32 REs, and each port corresponds to a different OCC; (4) the cdm8-FD2-TD4 pattern type, indicating that the pattern occupies The frequency domain occupies 2 consecutive REs and the time domain occupies 4 consecutive REs; each port occupies 8 REs, and each port corresponds to a different OCC; (5) The cdm4-FD2-TD2 pattern type indicates that the pattern occupies 2 consecutive REs in the frequency domain and 2 consecutive REs in the time domain; each port occupies 4 REs, and each port corresponds to a different OCC; (6) The fd-CDM2 pattern type indicates that the pattern occupies 2 consecutive REs in the frequency domain and 1 consecutive RE in the time domain; each port occupies 2 REs, and each port corresponds to a different OCC.

[0090] This allows for clear information about each port pattern type. The above port pattern types are examples only and are not limited thereto. For example, a 16-port pattern type may also include a cdm16-FD8-TD2 pattern type, etc.; "different orthogonal cover codes OCC" means that at least part of the content contained in the OCC is different.

[0091] Wherein, when the CSI-RS pattern is obtained by aggregating patterns of the cdm16-FD4-TD4 pattern type and / or the cdm32-FD4-TD8 pattern type, the position of the CDM group contained in the CSI-RS pattern within a PRB is indicated by a high-level parameter through a 3-bit bitmap, and the bitmap is composed of a setting value b2, a setting value b1, and a setting value b0. The starting position k of the CDM group in the frequency domain i-1=4f(i), where f(i) is the i-th b set to 1 in the bitmap x The subscript index x, i∈{1,2,3}.

[0092] This can specifically implement the frequency domain indication of the CSI-RS pattern in the above situation. For example, the 3-bit bitmap is 110. Starting from the lowest bit (i.e., 0 on the right) in the bitmap, the first bit (i=1) set to 1 is b1(x=1), so f(1)=x=1. Therefore, when i=1, k0=4×f(1)=4×1. Similarly, when i=2, k1=4×f(2)=4×2. The high-level parameter can be, but is not limited to, radio resource control (RRC) information.

[0093] In an embodiment of the present disclosure, the CDM group frequency domain position indication information is indicated in at least one of the following ways: Way 1, one CSI-RS pattern corresponds to only one CDM group frequency domain position indication information, and the subcarrier position occupied by the CSI-RS pattern within a PRB is indicated by high-level parameters through a group of bit maps, and all PRBs occupied by the CSI-RS pattern have the same frequency domain position; Way 2, one CSI-RS pattern corresponds to two CDM group frequency domain position indication information, and the two CDM group frequency domain position indication information are indicated by high-level parameters through two groups of bit maps, and each group of bit maps respectively indicates the subcarrier position occupied by the CSI-RS pattern within a PRB.

[0094] In this way, the CDM group frequency domain position indication information can be indicated in multiple ways. Among them, in the second method, "the two CDM group frequency domain position indication information is indicated by high-level parameters through two groups of bit maps, and each group of bit maps respectively indicates the subcarrier position occupied by the CSI-RS pattern in one PRB", which can be understood as: the subcarrier position occupied by the first pattern in two consecutive PRBs is indicated by high-level parameters through two groups of bit maps, and different PRBs correspond to different bit maps (for example, the subcarrier position occupied by the first pattern in the frequency domain of PRB1 corresponds to subcarrier indexes 0 to 11 and the subcarrier position occupied by PRB2 corresponds to subcarrier indexes 0 to 3; then the subcarrier indexes 0 to 11 of PRB1 can be indicated by bit map 1 (for example, all the values ​​contained are 1), and the subcarrier indexes 0 to 3 of PRB2 can be indicated by bit map 2 (for example, the lower 4 bits of the values ​​contained are all 1)), but it is not limited to this. Each CDM group frequency domain position indication information can only include one high-level parameter. Among them, the high-level parameter can be radio resource control RRC information, but it is not limited to this.

[0095] Among them, the method 1 corresponds to at least one of the following settings: (1) pre-defining that the minimum frequency domain resources occupied by all ports of the CSI-RS pattern are one or two continuous PRBs; (2) configuring a first newly added parameter through high-level parameters to indicate that the minimum frequency domain resources occupied by all ports of the CSI-RS pattern are one or two PRBs; (3) determining that the minimum frequency domain resources occupied by the CSI-RS pattern are X / (J×L) PRBs based on the number of CDM groups J, the group size L of the CDM group and the number of antenna ports X corresponding to the target configuration information; the number of CDM groups J is obtained based on the CDM group frequency domain position indication information and the CDM group time domain position indication information included in the target configuration information, the group size L of the CDM group is obtained based on the CDM type information included in the target configuration information, and when X / (J×L) is greater than 1, the X / (J×L) PRBs are continuous.

[0096] In this way, it is possible to support the specific implementation of frequency domain indication in combination with the above-mentioned method 1. For example, the above-mentioned method 1 indicates that the subcarrier positions of the PRB occupied in the frequency domain correspond to subcarrier indexes 0 to 11. In combination with the above-mentioned setting (1), if the predefined minimum frequency domain resource is one PRB, then the subcarrier positions of the CSI-RS pattern occupied in the frequency domain of PRB1 correspond to subcarrier indexes 0 to 11; if the predefined minimum frequency domain resource is two PRBs, then the subcarrier positions of the CSI-RS pattern occupied in the frequency domain of PRB1 correspond to subcarrier indexes 0 to 11 and the subcarrier positions of the CSI-RS pattern occupied in the frequency domain correspond to subcarrier indexes 0 to 11 and the subcarrier positions of the CSI-RS pattern occupied in the frequency domain correspond to subcarrier indexes 0 to 11; the above-mentioned setting (2) is similar. In addition, the above-mentioned setting (3) can support the implementation of the solution when the number of antenna ports X does not exist in the pattern configuration information. For example, the network side configures a CSI-RS pattern with X=64 ports (there is no configuration information of 64 ports in the pattern configuration information), but 32 ports can be placed in each corresponding PRB. These 32 ports of each PRB are configured according to the pattern configuration information and are not limited here. Among them, "the number of CDM groups J, the group size L of the CDM group and the number of antenna ports X corresponding to the target configuration information" may specifically include: the number of CDM groups J corresponding to the CDM group frequency domain position indication information, the CDM group size L corresponding to the CDM group type (information) and the number of antenna ports X included in the target configuration information, but is not limited to this.

[0097] In an embodiment of the present disclosure, the CDM group time domain position indication information is indicated using at least one of the following methods: Method 1, one CSI-RS pattern corresponds to only one set of CDM group time domain position indication information, and all time slots occupied by one CSI-RS pattern have the same time domain position; Method 2, one CSI-RS pattern corresponds to two sets of CDM group time domain position indication information, and each set of CDM group time domain position indication information respectively indicates the orthogonal frequency division multiplexing OFDM symbol position occupied by the CSI-RS pattern in one time slot.

[0098] In this way, the CDM group time domain position indication information can be indicated in multiple ways. Among them, a set of CDM group time domain position indication information can include 2 parameters, each parameter represents an OFDM symbol position (for example, the starting position of the OFDM symbol of the first pattern occupying time slot 1 in the time domain corresponds to OFDM symbol indices 4 and 10, and the starting position of the OFDM symbol of time slot 2 corresponds to OFDM symbol indices 2 and 8; then the OFDM symbol index of time slot 1 can be indicated by l0=4 and l1=10, and the OFDM symbol index of time slot 2 can be indicated by l0'=2 and l1'=8, but the present invention is not limited thereto). Among them, the high-level parameter can be radio resource control RRC information, but the present invention is not limited thereto.

[0099] Among them, the method 1 (under the CDM group time domain position indication information) corresponds to at least one of the following settings: (1) pre-defining that the minimum time domain resources occupied by all ports of the CSI-RS pattern are one or two continuous time slots; (2) configuring a second newly added parameter through a high-level parameter to indicate that the minimum time domain resources occupied by all ports of the CSI-RS pattern are one or two time slots; (3) determining that the minimum time domain resources occupied by the CSI-RS pattern are X / (J×L) time slots according to the number of CDM groups J, the group size L of the CDM group and the number of antenna ports X corresponding to the target configuration information; the number of CDM groups J is obtained according to the CDM group frequency domain position indication information and the CDM group time domain position indication information contained in the target configuration information, the group size L of the CDM group is obtained according to the CDM type information contained in the target configuration information, and when X / (J×L) is greater than 1, the X / (J×L) time slots are continuous.

[0100] In this way, it can support the specific implementation of time domain indication in combination with the corresponding method 1. For example, the above-mentioned method 1 (under the CDM group time domain position indication information) indicates that the starting position of the OFDM symbol occupied in the time domain corresponds to OFDM symbol indexes 4 and 10. Combined with the above-mentioned setting (1), if the predefined minimum time domain resource is a time slot, then the starting position of the OFDM symbol occupied by the CSI-RS pattern in the time domain in time slot 1 corresponds to the OFDM symbol indexes 4 and 10 of time slot 1; if the predefined minimum time domain resource is two time slots, then the starting position of the OFDM symbol occupied by the CSI-RS pattern in the time domain in time slot 1 corresponds to the OFDM symbol indexes 4 and 10 of time slot 1 and the starting position of the OFDM symbol occupied in time slot 2 corresponds to the OFDM symbol indexes 4 and 10 of time slot 2; the above-mentioned setting (2) is similar. In addition, the above setting (3) can support the implementation of the solution when the number of antenna ports X does not exist in the pattern configuration information. For example, the network side configures a CSI-RS pattern with X=64 ports (there is no configuration information for 64 ports in the pattern configuration information), but 32 ports can be placed in each corresponding time slot. These 32 ports in each time slot are configured according to the pattern configuration information, which is not limited here. Among them, "the number of CDM groups J, the group size L of the CDM group, and the number of antenna ports X corresponding to the target configuration information" can specifically include: the number of CDM groups J corresponding to the CDM group time domain position indication information, the CDM group size L corresponding to the CDM group type (information), and the number of antenna ports X included in the target configuration information, but is not limited to this.

[0101] In the embodiment of the present disclosure, when the number of ports corresponding to the CSI-RS is 48, the CSI-RS pattern is obtained by at least one of the following: aggregating three cdm16-FD4-TD4 pattern types by FDM; aggregating three cdm16-FD2-TD8 pattern types by FDM; aggregating two 24-port patterns of the cdm8-FD2-TD4 pattern type by FDM; aggregating two cdm8-FD2- A 24-port pattern of the TD4 pattern type is aggregated using TDM. A 24-port pattern of two cdm4-FD2-TD2 patterns is aggregated using FDM. A 24-port pattern of two cdm4-FD2-TD2 patterns is aggregated using TDM. A 24-port pattern of two fd-CDM2 patterns is aggregated using FDM. A 24-port pattern of two fd-CDM2 patterns is aggregated using TDM.

[0102] This clarifies how the CSI-RS pattern corresponding to the 48-port pattern is obtained. Specifically, for the case of "aggregating two 24-port patterns of the cdm4-FD2-TD2 pattern type via TDM," in some embodiments, all OFDM symbols occupied in the time domain must be continuous; for the case of "aggregating two 24-port patterns of the fd-CDM2 pattern type via TDM," in some embodiments, all OFDM symbols occupied in the time domain must be continuous; this is not limited here. Among them, the 24-port pattern of the cdm8-FD2-TD4 pattern type can be specifically obtained by aggregating 3 cdm8-FD2-TD4 pattern types through FDM; the 24-port pattern of the cdm4-FD2-TD2 pattern type can be specifically obtained by aggregating 6 cdm4-FD2-TD2 pattern types through TDM and / or FDM; the 24-port pattern of the fd-CDM2 pattern type can be specifically obtained by aggregating 12 fd-CDM2 pattern types through TDM and / or FDM, but is not limited to this.

[0103] Among them, when the number of ports corresponding to the CSI-RS is 64, the CSI-RS pattern is obtained by using at least one of the following: aggregating 4 cdm16-FD4-TD4 pattern types through FDM; aggregating 4 cdm16-FD2-TD8 pattern types through FDM; aggregating 2 cdm32-FD4-TD8 pattern types through FDM; aggregating 2 32-port patterns of cdm8-FD2-TD4 pattern types through TDM; aggregating 2 32-port patterns of cdm4-FD2-TD2 pattern types through TDM; and aggregating 2 32-port patterns of fd-CDM2 pattern types through TDM.

[0104] This clarifies how the CSI-RS pattern corresponding to the 64-port pattern is obtained. Specifically, for the case of "2 cdm4-FD2-TD2 pattern type 32-port patterns aggregated via TDM," in some embodiments, all OFDM symbols occupied in the time domain must be continuous; for the case of "2 fd-CDM2 pattern type 32-port patterns aggregated via TDM," in some embodiments, all OFDM symbols occupied in the time domain must be continuous; this is not limited here. Among them, the 32-port pattern of the cdm8-FD2-TD4 pattern type can be specifically obtained by aggregating 4 cdm8-FD2-TD4 pattern types through FDM; the 32-port pattern of the cdm4-FD2-TD2 pattern type can be specifically obtained by aggregating 8 cdm4-FD2-TD2 pattern types through TDM and / or FDM; the 32-port pattern of the fd-CDM2 pattern type can be specifically obtained by aggregating 16 fd-CDM2 pattern types through TDM and / or FDM, but is not limited to this.

[0105] In the embodiment of the present disclosure, when the number of ports corresponding to the CSI-RS is 96, the CSI-RS pattern is obtained by at least one of the following: aggregating 6 patterns of the cdm16-FD2-TD8 pattern type through FDM; aggregating 6 patterns of the cdm16-FD4-TD4 pattern type through FDM; aggregating 6 patterns of the cdm16-FD4-TD4 pattern type through FDM and TDM; aggregating 3 patterns of the cdm32-FD4-TD8 pattern type through FDM; Two 48-port patterns of the cdm8-FD2-TD4 pattern type are aggregated using FDM or TDM. Four 24-port patterns of the cdm8-FD2-TD4 pattern type are aggregated using FDM and TDM. Two 48-port patterns of the cdm4-FD2-TD2 pattern type are aggregated using FDM or TDM. Four 24-port patterns of the cdm4-FD2-TD2 pattern type are aggregated using FDM and TDM. Two 48-port patterns of the fd-CDM2 pattern type are aggregated using FDM or TDM. Four 24-port patterns of the fd-CDM2 pattern type are aggregated using FDM and TDM.

[0106] In this way, the method of obtaining the CSI-RS pattern corresponding to the 96 ports can be clarified. Among them, for the case of "48-port patterns of 2 cdm4-FD2-TD2 pattern types, aggregated by FDM or TDM", and / or "24-port patterns of 4 cdm4-FD2-TD2 pattern types, aggregated by FDM and TDM", and / or "48-port patterns of 2 fd-CDM2 pattern types, aggregated by FDM or TDM", and / or "24-port patterns of 4 fd-CDM2 pattern types, aggregated by FDM and TDM", in some embodiments, all OFDM symbols occupied in the time domain must be continuous; this is not limited here. The relevant information of the port pattern can be found in the above records and will not be repeated here.

[0107] Among them, when the number of ports corresponding to the CSI-RS is 128, the CSI-RS pattern is obtained by using at least one of the following: aggregating 4 cdm32-FD4-TD8 pattern types through FDM; aggregating 8 cdm16-FD4-TD4 pattern types through FDM and TDM; aggregating 4 32-port patterns of the cdm8-FD2-TD4 pattern type through FDM and TDM; and aggregating 4 32-port patterns of the cdm8-FD2-TD4 pattern type through TDM.

[0108] This clarifies how the CSI-RS pattern corresponding to the 128 ports is obtained. "Aggregating via FDM" can be understood as multiplexing in the frequency domain; "aggregating via FDM and TDM" can be understood as multiplexing in the frequency and time domains; and "aggregating via TDM" can be understood as multiplexing in the time domain, but is not limited thereto.

[0109] In an embodiment of the present disclosure, for the cdm16-FD4-TD4 pattern type, the OCC includes frequency-division FD-4OCC and time-division TD-4OCC, and different OCC indexes correspond to different FD-4OCCs and / or TD-4OCCs; and / or, for the cdm16-FD2-TD8 pattern type, the OCC includes FD-2OCC and TD-8OCC, and different OCC indexes correspond to different FD-2OCCs and / or TD-8OCCs; and / or, for the cdm32-FD4-TD8 pattern type, the OCC includes FD-4OCC and TD-8OCC, and different OCC indexes correspond to different FD-4OCCs and / or TD-8OCCs.

[0110] This clarifies the specific OCC information. Similarly, for the cdm8-FD2-TD4 pattern type, the OCC includes FD-2OCC and TD-4OCC, with different OCC indexes corresponding to different FD-2OCCs and / or TD-4OCCs; and / or, for the cdm4-FD2-TD2 pattern type, the OCC includes FD-2OCC and TD-2OCC, with different OCC indexes corresponding to different FD-2OCCs and / or TD-2OCCs; and / or, for the fd-CDM2 pattern type, the OCC includes FD-2OCC, with different OCC indexes corresponding to different FD-2OCCs; but the present invention is not limited thereto.

[0111] The combination of FD-4OCC and TD-4OCC includes at least one of the following: (1) FD-4OCC is [+1, +1, +1, +1], and TD-4OCC is [+1, +1, +1, +1]; (2) FD-4OCC is [+1, -1, +1, -1], and TD-4OCC is [+1, +1, +1, +1]; (3) FD-4OCC is [+1, +1, -1, -1], and TD-4OCC is [+1, +1, +1, +1]; (4) FD-4OCC is [+1, -1, -1, +1], and and TD-4OCC is [+1, +1, +1, +1]; (5) FD-4OCC is [+1, +1, +1, +1], and TD-4OCC is [+1, -1, +1, -1]; (6) FD-4OCC is [+1, -1, +1, -1], and TD-4OCC is [+1, -1, +1, -1]; (7) FD-4OCC is [+1, +1, -1, -1], and TD-4OCC is [+1, -1, +1, -1]; (8) FD-4OCC is [+1, -1, -1, +1], and TD-4OCC is [ +1, -1, +1, -1]; (9) FD-4OCC is [+1, +1, +1, +1], and TD-4OCC is [+1, +1, -1, -1]; (10) FD-4OCC is [+1, -1, +1, -1], and TD-4OCC is [+1, +1, -1, -1]; (11) FD-4OCC is [+1, +1, -1, -1], and TD-4OCC is [+1, +1, -1, -1]; (12) FD-4OCC is [+1, -1, -1, +1], and TD-4OCC is [+1, +1, -1, +1] 1, -1]; (13) FD-4OCC is [+1, +1, +1, +1], and TD-4OCC is [+1, -1, -1, +1]; (14) FD-4OCC is [+1, -1, +1, -1], and TD-4OCC is [+1, -1, -1, +1]; (15) FD-4OCC is [+1, +1, -1, -1], and TD-4OCC is [+1, -1, -1, +1]; (16) FD-4OCC is [+1, -1, -1, +1], and TD-4OCC is [+1, -1, -1, +1].

[0112] This clarifies the combinations of FD-4OCC and TD-4OCC. The order of the index numbers for the above combinations of FD-4OCC and TD-4OCC can be arranged in any order and is not limited here. Furthermore, the above combinations of FD-4OCC and TD-4OCC are merely examples and do not preclude the use of other orthogonal cover codes of length 4 and 4, such as [+1, +1, +1, +1] for FD-4OCC and [-1, -1, -1, -1] for TD-4OCC.

[0113] In the embodiment of the present disclosure, the combination of FD-2OCC and TD-8OCC includes at least one of the following: (1) FD-2OCC is [+1, +1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; (2) FD-2OCC is [+1, -1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; (3) FD-2OCC is [+1, +1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; (4) FD-2OCC is [+1, -1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; (5) FD-2OCC is [+1, +1], and TD- 8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; (6) FD-2OCC is [+1, -1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; (7) FD-2OCC is [+1, +1], and TD-8OCC is [+1, -1, -1, +1, +1, -1, -1, +1] ; (8) FD-2OCC is [+1, -1], and TD-8OCC is [+1, -1, -1, +1, +1, -1, -1, +1]; (9) FD-2OCC is [+1, +1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; (10) FD-2OCC is [+1, -1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; (11) FD-2OCC is [+1, +1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; (12) FD-2OCC is [+1, -1], and TD-8OCC is [+1, +1, -1, +1, -1, +1, -1, +1]; (13) FD-2OCC is [+1, +1], and TD-8OCC is [+1, +1, -1, -1 , -1, -1, +1, +1]; (14) FD-2OCC is [+1, -1], and TD-8OCC is [+1, +1, -1, -1, -1, +1, +1]; (15) FD-2OCC is [+1, +1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1]; (16) FD-2OCC is [+1, -1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1].

[0114] This clarifies the combinations of FD-2OCC and TD-8OCC. The order of the index numbers for the above combinations of FD-2OCC and TD-8OCC can be arbitrarily arranged and is not limited here. Furthermore, the above combinations of FD-2OCC and TD-8OCC are merely examples and do not preclude the use of other orthogonal cover codes of lengths 2 and 8, such as [+1, +1] for FD-2OCC and [-1, -1, -1, -1, -1, -1, -1, -1] for TD-8OCC.

[0115] The combination of FD-4OCC and TD-8OCC includes at least one of the following: (1) FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; (2) FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1, +1]; (3) FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1, +1]; (4) FD-4OCC is [+1, -1, -1, +1 ], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; (5) FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; (6) FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; (7) FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; (8) FD-4OCC is [+1, -1 , -1, +1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; (9) FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; (10) FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; (11) FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; (12) FD-4OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; CC is [+1, -1, -1, +1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; (13) FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, -1, -1, +1, +1, -1, -1, +1]; (14) FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, -1, -1, +1, +1, -1, -1, +1]; (15) FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, -1, -1, +1, +1, -1, -1, +1];(16) FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, -1, -1, +1, +1, -1, -1, +1]; (17) FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; (18) FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; (19) FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; (20) FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; (21) FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; (22) FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; (23) FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; (24) FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; (25) FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, +1, -1, -1, -1, +1, +1]; (26) FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, +1, -1, -1, -1, -1, +1, +1]; (27) FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, +1, -1, -1, -1, +1, +1]; (28) FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, +1, -1, -1, -1, +1, +1]; (29) FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1]; (30) FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; (31) FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1];(32) FD-4 OCC is [+1, -1, -1, +1], and TD-8 OCC is [+1, -1, -1, +1, -1, +1, +1, -1].

[0116] This clarifies the combinations of FD-4OCC and TD-8OCC. The order of the index numbers for the above combinations of FD-4OCC and TD-8OCC can be arbitrarily arranged and is not limited here. Furthermore, the above combinations of FD-4OCC and TD-8OCC are merely examples and do not preclude the use of other orthogonal cover codes of lengths 4 and 8, such as [+1, +1, +1, +1] for FD-4OCC and [-1, -1, -1, -1, -1, -1, -1, -1] for TD-8OCC.

[0117] The present disclosure also provides an information transmission method, which is applied to a terminal, as shown in FIG4 , and includes:

[0118] Step 41: Receive target configuration information sent by the network device;

[0119] Step 42: Determine the selected CSI-RS pattern based on the target configuration information; wherein the number of ports corresponding to the CSI-RS is greater than 32; the CSI-RS pattern is a pattern that is within one or two time slots in the time domain and within one or two PRBs in the frequency domain; the CSI-RS pattern is aggregated by at least one CDM type pattern through TDM and / or FDM; the CDM type includes at least one of the following: 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type and 2-port pattern type; the target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

[0120] Among them, the selected CSI-RS pattern can be determined by the network equipment based on the number of antenna ports, CSI-RS transmission power requirement information, and resource occupancy of signals such as the synchronization signal block SSB signal, demodulation reference signal DMRS and physical downlink control channel PDCCH signal, but is not limited to this.

[0121] The information transmission method provided by the embodiment of the present disclosure receives target configuration information sent by a network device; determines the selected CSI-RS pattern according to the target configuration information; wherein the number of ports corresponding to the CSI-RS is greater than 32; the CSI-RS pattern is a pattern that is within one or two time slots in the time domain and within one or two PRBs in the frequency domain; the CSI-RS pattern is aggregated by at least one CDM type pattern through TDM and / or FDM; the CDM type includes at least one of the following: 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type and 2-port pattern type; the target configuration information includes: number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information; one CDM group corresponds to one CDM type; and can support the transmission of relevant information corresponding to CSI-RS patterns with more than 32 ports.

[0122] The step of determining the selected CSI-RS pattern based on the target configuration information includes: determining the selected CSI-RS pattern based on the pattern configuration information and the target configuration information; wherein the pattern configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, CDM group time domain position indication information, CDM group index, frequency domain index within the CDM group, and time domain index within the CDM group.

[0123] In this way, the target configuration information can be accurately obtained, wherein the target configuration information can be part of the pattern configuration information, and the pattern configuration information can be predefined, but is not limited thereto.

[0124] In the embodiment of the present disclosure, the 16-port pattern type includes: cdm16-FD4-TD4 pattern type and / or cdm16-FD2-TD8 pattern type; and / or, the 32-port pattern type includes cdm32-FD4-TD8 pattern type; and / or, the 8-port pattern type includes cdm8-FD2-TD4 pattern type; and / or, the 4-port pattern type includes cdm4-FD2-TD2 pattern type; and / or, the 2-port pattern type includes fd-CDM2 pattern type; wherein, (1) the cdm16-FD4-TD4 pattern type indicates that the pattern occupies 4 consecutive resource elements RE in the frequency domain and 4 consecutive RE in the time domain; each port occupies 16 REs, and each port corresponds to a different orthogonal cover code OCC; (2) the cdm16-FD2-TD8 pattern type indicates that the pattern occupies 2 consecutive REs in the frequency domain and 8 consecutive REs in the time domain. RE; each port occupies 16 REs, and each port corresponds to a different OCC; (3) the cdm32-FD4-TD8 pattern type indicates that the pattern occupies 4 consecutive REs in the frequency domain and 8 consecutive REs in the time domain; each port occupies 32 REs, and each port corresponds to a different OCC; (4) the cdm8-FD2-TD4 pattern type indicates that the pattern occupies 2 consecutive REs in the frequency domain and 4 consecutive REs in the time domain; each port occupies 8 REs, and each port corresponds to a different OCC; (5) the cdm4-FD2-TD2 pattern type indicates that the pattern occupies 2 consecutive REs in the frequency domain and 2 consecutive REs in the time domain; each port occupies 4 REs, and each port corresponds to a different OCC; (6) the fd-CDM2 pattern type indicates that the pattern occupies 2 consecutive REs in the frequency domain and 1 consecutive RE in the time domain; each port occupies 2 REs, and each port corresponds to a different OCC.

[0125] Wherein, when the CSI-RS pattern is obtained by aggregating patterns of the cdm16-FD4-TD4 pattern type and / or the cdm32-FD4-TD8 pattern type, the position of the CDM group contained in the CSI-RS pattern within a PRB is indicated by a high-level parameter through a 3-bit bitmap, and the bitmap is composed of a setting value b2, a setting value b1, and a setting value b0. The starting position k of the CDM group in the frequency domain i-1 =4f(i), where f(i) is the i-th b set to 1 in the bitmap x The subscript index x, i∈{1,2,3}.

[0126] This allows for frequency domain indication of the CSI-RS pattern in the aforementioned case. Specifically, for example, the 3-bit bitmap is 110. Starting from the least significant bit (i.e., 0 on the right), the first bit (i=1) set to 1 is b1(x=1), so f(1)=x=1. Therefore, when i=1, k0=4×f(1)=4×1. Similarly, when i=2, k1=4×f(2)=4×2.

[0127] In an embodiment of the present disclosure, the CDM group frequency domain position indication information is indicated in at least one of the following ways: Way 1, one CSI-RS pattern corresponds to only one CDM group frequency domain position indication information, and the subcarrier position occupied by the CSI-RS pattern within a PRB is indicated by high-level parameters through a set of bit maps, and all PRBs occupied by the CSI-RS pattern have the same frequency domain position; Way 2, one CSI-RS pattern corresponds to two CDM group frequency domain position indication information, and the two CDM group frequency domain position indication information are indicated by high-level parameters through two sets of bit maps, and each set of bit maps respectively indicates the subcarrier position occupied by the CSI-RS pattern within a PRB.

[0128] In this way, the frequency domain position indication information of the CDM group can be indicated in multiple ways. Among them, in the second method, "the two CDM group frequency domain position indication information are indicated by high-level parameters through two groups of bit maps, and each group of bit maps respectively indicates the subcarrier position occupied by the CSI-RS pattern in one PRB", can be understood as: the subcarrier position occupied by the first pattern in two consecutive PRBs is indicated by high-level parameters through two groups of bit maps, and different PRBs correspond to different bit maps, but it is not limited to this. Each CDM group frequency domain position indication information can only include one high-level parameter.

[0129] Among them, the method 1 corresponds to at least one of the following settings: (1) pre-defining that the minimum frequency domain resources occupied by all ports of the CSI-RS pattern are one or two continuous PRBs; (2) configuring a first newly added parameter through high-level parameters to indicate that the minimum frequency domain resources occupied by all ports of the CSI-RS pattern are one or two PRBs; (3) determining that the minimum frequency domain resources occupied by the CSI-RS pattern are X / (J×L) PRBs based on the number of CDM groups J, the group size L of the CDM group and the number of antenna ports X corresponding to the target configuration information; the number of CDM groups J is obtained based on the CDM group frequency domain position indication information and the CDM group time domain position indication information included in the target configuration information, the group size L of the CDM group is obtained based on the CDM type information included in the target configuration information, and when X / (J×L) is greater than 1, the X / (J×L) PRBs are continuous.

[0130] This can support the specific implementation of frequency domain indication in combination with the above-mentioned method 1. The above-mentioned setting (3) can support the implementation of the solution when the number of antenna ports X does not exist in the pattern configuration information. For example, the network side configures a CSI-RS pattern with X=64 ports (there is no configuration information for 64 ports in the pattern configuration information), but 32 ports can be placed in each corresponding PRB. These 32 ports of each PRB are configured according to the pattern configuration information and are not limited here. Among them, "the number of CDM groups J, the group size L of the CDM group and the number of antenna ports X corresponding to the target configuration information" can specifically include: the number of CDM groups J corresponding to the CDM group frequency domain position indication information, the CDM group size L corresponding to the CDM group type (information) and the number of antenna ports X included in the target configuration information, but is not limited to this.

[0131] In an embodiment of the present disclosure, the CDM group time domain position indication information is indicated using at least one of the following methods: Method 1, one CSI-RS pattern corresponds to only one set of CDM group time domain position indication information, and all time slots occupied by one CSI-RS pattern have the same time domain position; Method 2, one CSI-RS pattern corresponds to two sets of CDM group time domain position indication information, and each set of CDM group time domain position indication information respectively indicates the OFDM symbol position occupied by the CSI-RS pattern in a time slot.

[0132] In this way, the CDM group time domain position indication information can be indicated in multiple ways. Among them, a set of CDM group time domain position indication information can include two parameters, each parameter represents an OFDM symbol position, but is not limited to this.

[0133] Wherein, the method 1 corresponds to at least one of the following settings: (1) predefining that the minimum time domain resources occupied by all ports of the CSI-RS pattern are one or two continuous time slots; (2) configuring a second newly added parameter through a high-level parameter to indicate that the minimum time domain resources occupied by all ports of the CSI-RS pattern are one or two time slots; (3) determining that the minimum time domain resources occupied by the CSI-RS pattern are X / (J×L) time slots according to the number of CDM groups J, the group size L of the CDM group and the number of antenna ports X corresponding to the target configuration information; the number of CDM groups J is obtained according to the CDM group frequency domain position indication information and the CDM group time domain position indication information included in the target configuration information, the group size L of the CDM group is obtained according to the CDM type information included in the target configuration information, and when X / (J×L) is greater than 1, the X / (J×L) time slots are continuous.

[0134] This can support the specific implementation of time domain indication in combination with the corresponding method 1. The above setting (3) can support the implementation of the solution when the number of antenna ports X does not exist in the pattern configuration information. For example, the network side configures a CSI-RS pattern with X=64 ports (there is no configuration information for 64 ports in the pattern configuration information), but 32 ports can be placed in each corresponding time slot. These 32 ports in each time slot are configured according to the pattern configuration information, which is not limited here. Among them, "the number of CDM groups J, the group size L of the CDM group and the number of antenna ports X corresponding to the target configuration information" can specifically include: the number of CDM groups J corresponding to the CDM group time domain position indication information, the CDM group size L corresponding to the CDM group type (information) and the number of antenna ports X included in the target configuration information, but is not limited to this.

[0135] In the embodiment of the present disclosure, when the number of ports corresponding to the CSI-RS is 48, the CSI-RS pattern is obtained by adopting at least one of the following: aggregating three cdm16-FD4-TD4 pattern types by FDM; aggregating three cdm16-FD2-TD8 pattern types by FDM; aggregating two 24-port patterns of cdm8-FD2-TD4 pattern types by FDM; aggregating two cdm8-FD2 -24-port patterns of the TD4 pattern type, aggregated via TDM; 24-port patterns of the cdm4-FD2-TD2 pattern type, aggregated via FDM; 24-port patterns of the cdm4-FD2-TD2 pattern type, aggregated via TDM; 24-port patterns of the fd-CDM2 pattern type, aggregated via FDM; 24-port patterns of the fd-CDM2 pattern type, aggregated via TDM.

[0136] This clarifies how the CSI-RS pattern corresponding to the 48-port pattern is obtained. Specifically, for the case of "aggregating two 24-port patterns of the cdm4-FD2-TD2 pattern type via TDM," in some embodiments, all OFDM symbols occupied in the time domain must be continuous; for the case of "aggregating two 24-port patterns of the fd-CDM2 pattern type via TDM," in some embodiments, all OFDM symbols occupied in the time domain must be continuous; this is not limited here. Among them, the 24-port pattern of the cdm8-FD2-TD4 pattern type can be specifically obtained by aggregating 3 cdm8-FD2-TD4 pattern types through FDM; the 24-port pattern of the cdm4-FD2-TD2 pattern type can be specifically obtained by aggregating 6 cdm4-FD2-TD2 pattern types through TDM and / or FDM; the 24-port pattern of the fd-CDM2 pattern type can be specifically obtained by aggregating 12 fd-CDM2 pattern types through TDM and / or FDM, but is not limited to this.

[0137] In which, when the number of ports corresponding to the CSI-RS is 64, the CSI-RS pattern is obtained by using at least one of the following: aggregation of 4 cdm16-FD4-TD4 pattern types through FDM; aggregation of 4 cdm16-FD2-TD8 pattern types through FDM; aggregation of 2 cdm32-FD4-TD8 pattern types through FDM; aggregation of 32-port patterns of 2 cdm8-FD2-TD4 pattern types through TDM; aggregation of 32-port patterns of 2 cdm4-FD2-TD2 pattern types through TDM; and aggregation of 32-port patterns of 2 fd-CDM2 pattern types through TDM.

[0138] This clarifies how the CSI-RS pattern corresponding to the 64-port pattern is obtained. Specifically, for the case of "2 cdm4-FD2-TD2 pattern type 32-port patterns aggregated via TDM," in some embodiments, all OFDM symbols occupied in the time domain must be continuous; for the case of "2 fd-CDM2 pattern type 32-port patterns aggregated via TDM," in some embodiments, all OFDM symbols occupied in the time domain must be continuous; this is not limited here. Among them, the 32-port pattern of the cdm8-FD2-TD4 pattern type can be specifically obtained by aggregating 4 cdm8-FD2-TD4 pattern types through FDM; the 32-port pattern of the cdm4-FD2-TD2 pattern type can be specifically obtained by aggregating 8 cdm4-FD2-TD2 pattern types through TDM and / or FDM; the 32-port pattern of the fd-CDM2 pattern type can be specifically obtained by aggregating 16 fd-CDM2 pattern types through TDM and / or FDM, but is not limited to this.

[0139] In the embodiment of the present disclosure, when the number of ports corresponding to the CSI-RS is 96, the CSI-RS pattern is obtained by adopting at least one of the following: aggregating 6 patterns of the cdm16-FD2-TD8 pattern type by FDM; aggregating 6 patterns of the cdm16-FD4-TD4 pattern type by FDM; aggregating 6 patterns of the cdm16-FD4-TD4 pattern type by FDM and TDM; aggregating 3 patterns of the cdm32-FD4-TD8 pattern type by FDM; aggregating 2 patterns of the 48-port cdm8-FD2-TD4 pattern type by TDM; 24-port patterns of the cdm8-FD2-TD4 pattern type, aggregated via FDM or TDM; 48-port patterns of the cdm4-FD2-TD2 pattern type, aggregated via FDM or TDM; 24-port patterns of the cdm4-FD2-TD2 pattern type, aggregated via FDM and TDM; 48-port patterns of the fd-CDM2 pattern type, aggregated via FDM or TDM; 24-port patterns of the fd-CDM2 pattern type, aggregated via FDM and TDM.

[0140] This clarifies how the CSI-RS pattern corresponding to the 96-port pattern is obtained. Specifically, for the case of "aggregating 2 48-port patterns of the cdm4-FD2-TD2 pattern type through FDM or TDM," and / or "aggregating 4 24-port patterns of the cdm4-FD2-TD2 pattern type through FDM and TDM," and / or "aggregating 2 48-port patterns of the fd-CDM2 pattern type through FDM or TDM," and / or "aggregating 4 24-port patterns of the fd-CDM2 pattern type through FDM and TDM," in some embodiments, all OFDM symbols occupied in the time domain must be continuous; this is not limited here.

[0141] In which, when the number of ports corresponding to the CSI-RS is 128, the CSI-RS pattern is obtained by using at least one of the following: aggregating 4 cdm32-FD4-TD8 pattern types through FDM; aggregating 8 cdm16-FD4-TD4 pattern types through FDM and TDM; aggregating 4 32-port patterns of the cdm8-FD2-TD4 pattern type through FDM and TDM; and aggregating 4 32-port patterns of the cdm8-FD2-TD4 pattern type through TDM.

[0142] This clarifies how the CSI-RS pattern corresponding to the 128 ports is obtained. "Aggregating via FDM" can be understood as multiplexing in the frequency domain; "aggregating via FDM and TDM" can be understood as multiplexing in the frequency and time domains; and "aggregating via TDM" can be understood as multiplexing in the time domain, but is not limited thereto.

[0143] In the embodiment of the present disclosure, for the cdm16-FD4-TD4 pattern type, the OCC includes frequency-division FD-4OCC and time-division TD-4OCC, and different OCC indexes correspond to different FD-4OCCs and / or TD-4OCCs; and / or, for the cdm16-FD2-TD8 pattern type, the OCC includes FD-2OCC and TD-8OCC, and different OCC indexes correspond to different FD-2OCCs and / or TD-8OCCs; and / or, for the cdm32-FD4-TD8 pattern type, the OCC includes FD-4OCC and TD-8OCC, and different OCC indexes correspond to different FD-4OCCs and / or TD-8OCCs.

[0144] This will clarify the specific information of the OCC.

[0145] The combination of FD-4OCC and TD-4OCC includes at least one of the following: (1) FD-4OCC is [+1, +1, +1, +1], and TD-4OCC is [+1, +1, +1, +1]; (2) FD-4OCC is [+1, -1, +1, -1], and TD-4OCC is [+1, +1, +1, +1]; (3) FD-4OCC is [+1, +1, -1, -1], and TD-4OCC is [+1, +1, +1, +1]; (4) FD-4OCC is [+1, -1, -1, +1], and and TD-4OCC is [+1, +1, +1, +1]; (5) FD-4OCC is [+1, +1, +1, +1], and TD-4OCC is [+1, -1, +1, -1]; (6) FD-4OCC is [+1, -1, +1, -1], and TD-4OCC is [+1, -1, +1, -1]; (7) FD-4OCC is [+1, +1, -1, -1], and TD-4OCC is [+1, -1, +1, -1]; (8) FD-4OCC is [+1, -1, -1, +1], and TD-4OCC is [ +1, -1, +1, -1]; (9) FD-4OCC is [+1, +1, +1, +1], and TD-4OCC is [+1, +1, -1, -1]; (10) FD-4OCC is [+1, -1, +1, -1], and TD-4OCC is [+1, +1, -1, -1]; (11) FD-4OCC is [+1, +1, -1, -1], and TD-4OCC is [+1, +1, -1, -1]; (12) FD-4OCC is [+1, -1, -1, +1], and TD-4OCC is [+1, +1, -1, +1] 1, -1]; (13) FD-4OCC is [+1, +1, +1, +1], and TD-4OCC is [+1, -1, -1, +1]; (14) FD-4OCC is [+1, -1, +1, -1], and TD-4OCC is [+1, -1, -1, +1]; (15) FD-4OCC is [+1, +1, -1, -1], and TD-4OCC is [+1, -1, -1, +1]; (16) FD-4OCC is [+1, -1, -1, +1], and TD-4OCC is [+1, -1, -1, +1].

[0146] In this way, the combination of FD-4OCC and TD-4OCC can be clearly identified. The order of the index numbers of the above combinations of FD-4OCC and TD-4OCC can be arranged arbitrarily and is not limited here.

[0147] In the embodiment of the present disclosure, the combination of FD-2OCC and TD-8OCC includes at least one of the following: (1) FD-2OCC is [+1, +1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; (2) FD-2OCC is [+1, -1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; (3) FD-2OCC is [+1, +1], and TD-8OCC is [+1, -1] , +1, -1, +1, -1, +1, -1](4) FD-2OCC is [+1, -1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1];(5) FD-2OCC is [+1, +1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1];(6) FD-2OCC is [+1, -1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1] ]; (7) FD-2OCC is [+1, +1], and TD-8OCC is [+1, -1, -1, +1, +1, -1, -1, +1]; (8) FD-2OCC is [+1, -1], and TD-8OCC is [+1, -1, -1, +1, +1, -1, -1, +1]; (9) FD-2OCC is [+1, +1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; (10) FD-2OCC is [+1 , -1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; (11) FD-2OCC is [+1, +1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; (12) FD-2OCC is [+1, -1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; (13) FD-2OCC is [+1, +1], and TD-8OCC is [+1, +1, -1, -1, -1, -1, +1, +1]; (14) FD-2OCC is [+1, -1], and TD-8OCC is [+1, +1, -1, -1, -1, +1, +1]; (15) FD-2OCC is [+1, +1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1]; (16) FD-2OCC is [+1, -1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1].

[0148] In this way, the combination of FD-2OCC and TD-8OCC can be clearly identified. The order of the index numbers of the above combinations of FD-2OCC and TD-8OCC can be arranged arbitrarily and is not limited here.

[0149] The combination of FD-4OCC and TD-8OCC includes at least one of the following: (1) FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; (2) FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1, +1]; (3) FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1, +1]; (4) FD-4OCC is [+1, -1, -1, +1 ], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; (5) FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; (6) FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; (7) FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; (8) FD-4OCC is [+1, -1 , -1, +1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; (9) FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; (10) FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; (11) FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; (12) FD-4OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; CC is [+1, -1, -1, +1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; (13) FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, -1, -1, +1, +1, -1, -1, +1]; (14) FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, -1, -1, +1, +1, -1, -1, +1]; (15) FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, -1, -1, +1, +1, -1, -1, +1];(16) FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, -1, -1, +1, -1, -1, +1]; (17) FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; (18) FD-4OCC is [+1, -1 , +1, -1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; (19) FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; (20) FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1]; (21) FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; (22) FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, -1, +1, -1, +1] , -1, +1]; (23) FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; (24) FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; (25) FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, +1, -1, -1, -1, -1, +1, +1]; (26) FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, +1, -1, -1, -1, +1, +1]; (27) FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, +1, -1, -1, -1, +1, +1]; (28) FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, +1, -1, -1, -1, +1, +1]; (29) FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, -1, +1, -1, +1, +1, -1]; (30) FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; (31) FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1];(32) FD-4 OCC is [+1, -1, -1, +1], and TD-8 OCC is [+1, -1, -1, +1, -1, +1, +1, -1].

[0150] In this way, the combination of FD-4OCC and TD-8OCC can be clearly identified. The order of the index numbers of the above combinations of FD-4OCC and TD-8OCC can be arranged arbitrarily and is not limited here.

[0151] It is noted here that the solutions on the network device side and the terminal side can refer to each other, and the repeated parts will not be repeated.

[0152] The information transmission method provided in the embodiment of the present disclosure is described below with examples.

[0153] To address the above technical issues, embodiments of the present disclosure provide an information transmission method, which can be specifically implemented as a CSI-RS transmission scheme, involving:

[0154] (1) The network side selects a CSI-RS pattern (corresponding to the above-selected CSI-RS pattern) from the CSI-RS pattern set. The network side sends configuration information of the selected CSI-RS pattern (corresponding to the above-mentioned target configuration information) to the terminal side.

[0155] (2) The terminal side receives the configuration information of the CSI-RS pattern and determines the CSI-RS pattern according to the configuration information (corresponding to the target configuration information sent by the receiving network device; determining the selected CSI-RS pattern according to the target configuration information).

[0156] Among them, the CSI-RS pattern set and configuration information for more than 32 ports can be pre-defined, and the content involved is specifically introduced below.

[0157] Part 1, a CSI-RS with more than 32 ports, a pattern in one slot or two slots in the time domain and one PRB or two PRBs in the frequency domain (corresponding to the above CSI-RS pattern being in one or two time slots in the time domain and in one or two physical resource blocks PRBs in the frequency domain), consisting of at least one fd-CDM2 and / or cdm4-FD2-TD2 and / or cdm8-FD2-TD4 and / or cdm16-FD4-TD4 and / or cdm16-FD2-TD8 and / or cdm32-FD4-TD8 patterns, aggregated by TDM and / or FDM (corresponding to the CSI-RS pattern being obtained by aggregating at least one code division multiplexing (CDM) type pattern by time division multiplexing (TDM) and / or frequency division multiplexing (FDM); the CDM type includes at least one of the following: a 16-port pattern type, a 32-port pattern type, an 8-port pattern type, a 4-port pattern type, and a 2-port pattern type). Different CDM types can be applied to different scenarios. For example, FD2 can be used for scenarios sensitive to frequency domain selectivity, and TD4 can be used for scenarios sensitive to time domain selectivity, but the present invention is not limited thereto.

[0158] The following are the explanations of each CDM type:

[0159] cdm16-FD4-TD4 indicates that 4 consecutive REs are occupied in the frequency domain and 4 consecutive REs are occupied in the time domain (corresponding to the cdm16-FD4-TD4 pattern type mentioned above, indicating that the pattern occupies 4 consecutive resource elements (REs) in the frequency domain and 4 consecutive REs in the time domain). The 16 ports use the same RE positions for transmission using a CDM scheme based on FD-4OCC+TD-4OCC, that is, each port occupies 16 REs, and different OCCs are used to distinguish the 16 ports (corresponding to the above-mentioned each port occupying 16 REs, and each port corresponds to a different orthogonal cover code (OCC).

[0160] cdm16-FD2-TD8 indicates that two consecutive REs are occupied in the frequency domain and eight consecutive REs are occupied in the time domain (corresponding to the cdm16-FD2-TD8 pattern type mentioned above, indicating that the pattern occupies two consecutive REs in the frequency domain and eight consecutive REs in the time domain). The 16 ports use the same RE positions for transmission using a CDM scheme based on FD-2OCC + TD-8OCC. That is, each port occupies 16 REs, and different OCCs are used to distinguish the 16 ports (corresponding to the above-mentioned each port occupies 16 REs, and each port corresponds to a different OCC).

[0161] cdm32-FD4-TD8 indicates that 4 consecutive REs are occupied in the frequency domain and 8 consecutive REs are occupied in the time domain (corresponding to the cdm32-FD4-TD8 pattern type mentioned above, indicating that the pattern occupies 4 consecutive REs in the frequency domain and 8 consecutive REs in the time domain). The 32 ports use the same RE positions for transmission using a CDM scheme based on FD-4OCC + TD-8OCC, meaning that each port occupies 32 REs, and different OCCs are used to distinguish the 32 ports (corresponding to the above-mentioned 32 REs occupied by each port and different OCCs for each port).

[0162] cdm8-FD2-TD4 indicates that two consecutive REs are occupied in the frequency domain and four consecutive REs are occupied in the time domain (corresponding to the cdm8-FD2-TD4 pattern type mentioned above, indicating that the pattern occupies two consecutive REs in the frequency domain and four consecutive REs in the time domain). The eight ports use the same RE positions for transmission using a CDM scheme based on FD-2OCC + TD-4OCC, that is, each port occupies eight REs, and different OCCs are used to distinguish the eight ports (corresponding to the above-mentioned eight REs occupied by each port, and each port corresponds to a different OCC).

[0163] cdm4-FD2-TD2 indicates that two consecutive REs are occupied in the frequency domain and two consecutive REs are occupied in the time domain (corresponding to the cdm4-FD2-TD2 pattern type mentioned above, indicating that the pattern occupies two consecutive REs in the frequency domain and two consecutive REs in the time domain). The four ports use the same RE positions for transmission using a CDM scheme based on FD-2OCC + TD-2OCC, that is, each port occupies four REs, and different OCCs are used to distinguish the four ports (corresponding to the above-mentioned four REs occupied by each port, and each port corresponds to a different OCC).

[0164] fd-CDM2 indicates that two consecutive REs are occupied in the frequency domain and one consecutive RE is occupied in the time domain (corresponding to the fd-CDM2 pattern type mentioned above, indicating that the pattern occupies two consecutive REs in the frequency domain and one consecutive RE in the time domain). Two ports use the FD-2OCC-based CDM method to occupy the same RE positions for transmission, that is, each port occupies two REs, and different OCCs are used to distinguish the two ports (corresponding to the above-mentioned each port occupies two REs, and each port corresponds to a different OCC).

[0165] Part 2, frequency domain position indication of a CSI-RS resource greater than 32 ports, supports at least one of the following methods:

[0166] Option 1: When a CSI-RS with more than 32 ports is aggregated by cdm16-FD4-TD4 and / or cdm32-FD4-TD8, the position of the CDM group contained in the CSI-RS pattern within a PRB is indicated by a 3-bit bitmap [b2 b1 b0] through a higher-layer parameter (such as Radio Resource Control (RRC)). The bitmap refers to the bitmap. The starting position k of the CDM group in the frequency domain i-1 =4f(i), where f(i) is the bitmap with the i-th value set to 1. x The subscript index x. i∈{1,2,3}. For example, the bitmap is 110, and the bitmap starts counting from the lowest bit (i.e., 0 on the right). The first (i=1) setting value is 1 is b1(x=1), so f(1)=x=1, so when i=1, k0=4×f(1)=4×1, similarly, when i=2, k1=4×f(2)=4×2. This Option corresponds to the case where the above-mentioned CSI-RS pattern is obtained by aggregating patterns of the cdm16-FD4-TD4 pattern type and / or the cdm32-FD4-TD8 pattern type. The position of the CDM group contained in the CSI-RS pattern within a PRB is indicated by a high-level parameter through a 3-bit bitmap, and the bitmap is composed of setting value b2, setting value b1, and setting value b0. The starting position k of the CDM group in the frequency domain i-1 =4f(i), where f(i) is the i-th b set to 1 in the bitmap x The subscript index x, i∈{1,2,3}.

[0167] Option 2: A CSI-RS resource has only one frequency domain position indication, and the subcarrier position occupied by it within a PRB is provided by a set of bitmaps via higher-level parameters. All PRBs occupied by the CSI-RS resource have the same frequency domain position. This option corresponds to the aforementioned CSI-RS pattern corresponding to only one CDM group frequency domain position indication information. The subcarrier position occupied by the CSI-RS pattern within a PRB is indicated by a set of bitmaps via higher-level parameters, and all PRBs occupied by the CSI-RS pattern have the same frequency domain position.

[0168] (1) The minimum frequency domain resource occupied by all ports of a predefined CSI-RS resource is one or two consecutive PRBs, corresponding to the minimum frequency domain resource occupied by all ports of the predefined CSI-RS pattern being one or two consecutive PRBs;

[0169] (2) A new parameter is added to indicate that the minimum frequency domain resources occupied by all ports of the CSI-RS resource is F PRBs (F∈{1,2}), which is configured through high-level parameters; corresponding to the above-mentioned configuration of the first new parameter through high-level parameters, it is used to indicate that the minimum frequency domain resources occupied by all ports of the CSI-RS pattern is one or two PRBs.

[0170] (3) According to the number J of CDM groups corresponding to the frequency domain position indication, the size L of CDM groups corresponding to the CDM group type, and the number X of antenna ports, it is determined that the minimum frequency domain resource occupied by the CSI-RS resource is X / (J×L) PRBs; when the minimum occupied frequency domain resource is greater than one PRB, these multiple PRBs must be continuous (corresponding to the above-mentioned number J of CDM groups corresponding to the target configuration information, the size L of CDM groups, and the number X of antenna ports, it is determined that the minimum frequency domain resource occupied by the CSI-RS pattern is X / (J×L) PRBs; the number J of CDM groups is obtained according to the CDM group frequency domain position indication information and the CDM group time domain position indication information included in the target configuration information, the size L of CDM groups is obtained according to the CDM type information included in the target configuration information, and when X / (J×L) is greater than 1, X / (J×L) PRBs are continuous). where L∈{2,4,8,16,32} corresponds to fd-CDM2, cdm4-FD2-TD2, cdm8-FD2-TD4, cdm16-FD4-TD4 or cdm16-FD2-TD8, cdm32-FD4-TD8, respectively.

[0171] Option 3: A CSI-RS resource has two frequency domain position indications, which are provided by two groups of bitmaps through high-level parameters, and each group of bitmaps indicates the subcarrier position occupied within a PRB; corresponding to the above-mentioned CSI-RS pattern, there are two CDM groups of frequency domain position indication information, and the two CDM groups of frequency domain position indication information are indicated by high-level parameters through two groups of bitmaps, and each group of bitmaps indicates the subcarrier position occupied by the CSI-RS pattern within a PRB. When a CSI-RS resource uses only one frequency domain position indication, the minimum frequency domain resource occupied by all ports of a CSI-RS resource is one PRB. When a CSI-RS resource uses two frequency domain position indications, the minimum frequency domain resource occupied by all ports of a CSI-RS resource is two PRBs. The two frequency domain positions respectively indicate the frequency domain position within each of the two PRBs. This can be understood as follows: if the bitmap of one frequency domain position indication is all 0, and the bitmap of the other frequency domain position indication contains a bit with a value of 1, then the minimum frequency domain resource occupied by all ports of a CSI-RS resource is one PRB. If the bitmaps of both frequency domain position indications contain a bit with a value of 1, then the minimum frequency domain resource occupied by all ports of a CSI-RS resource is two PRBs.

[0172] Option4:

[0173] (1) The minimum frequency domain resource occupied by all ports of a CSI-RS resource is predefined as multiple consecutive subcarriers within one PRB or two PRBs. The starting frequency domain index of the CSI-RS resource is configured by high-level parameters.

[0174] (2) The minimum frequency domain resource occupied by all ports of a CSI-RS resource is predefined as multiple consecutive subcarriers within one PRB or two PRBs, and the starting position of the CSI-RS resource is the first subcarrier of the PRB with the smallest index value;

[0175] (3) The minimum frequency domain resources occupied by all ports of a CSI-RS resource are predefined as all subcarriers of one PRB or two PRBs.

[0176] Part 3: The time domain location of a CSI-RS resource with more than 32 ports is configured through high-layer parameters and supports at least one of the following methods:

[0177] Option 1: A CSI-RS resource has only one set of time-domain position indicators. That is, l0 and / or l1 indicate the starting index of two consecutive OFDM symbols within a time slot. All time slots occupied by a CSI-RS resource have the same time-domain position. This option corresponds to the aforementioned CSI-RS pattern having only one set of CDM group time-domain position indicator information, and all time slots occupied by the CSI-RS pattern have the same time-domain position.

[0178] (1) The minimum time domain resource occupied by all ports of a predefined CSI-RS resource is one or two consecutive slots, corresponding to the minimum time domain resource occupied by all ports of the predefined CSI-RS pattern being one or two consecutive time slots;

[0179] (2) In some embodiments, a new parameter is added to indicate that the minimum time domain resources occupied by all ports of the CSI-RS resource is T slots (T∈{1,2}), which is configured through high-level parameters; corresponding to the above-mentioned configuration of the second new parameter through high-level parameters, it is used to indicate that the minimum time domain resources occupied by all ports of the CSI-RS pattern is one or two time slots.

[0180] (3) According to the number J of CDM groups corresponding to the time domain position indication, the group size L of the CDM group corresponding to the CDM group type, and the number X of antenna ports, it is determined that the minimum time domain resource occupied by the CSI-RS resource is X / (J×L) slots; when the minimum time domain resource occupied is greater than one slot, these multiple slots must be continuous (corresponding to the above-mentioned number J of CDM groups corresponding to the target configuration information, the group size L of the CDM group, and the number X of antenna ports, it is determined that the minimum time domain resource occupied by the CSI-RS pattern is X / (J×L) time slots; the number J of CDM groups is obtained according to the CDM group frequency domain position indication information and the CDM group time domain position indication information included in the target configuration information, the group size L of the CDM group is obtained according to the CDM type information included in the target configuration information, and when X / (J×L) is greater than 1, the X / (J×L) time slots are continuous). where L∈{2,4,8,16,32} corresponds to fd-CDM2, cdm4-FD2-TD2, cdm8-FD2-TD4, cdm16-FD4-TD4 or cdm16-FD2-TD8, cdm32-FD4-TD8, respectively.

[0181] Option 2: One CSI-RS resource has two sets of time domain position indications, i.e., l0 and / or l1 indicate the starting indexes of two groups of consecutive OFDM symbols occupied in one time slot, and l2 and / or l3 indicate the starting indexes of two groups of consecutive OFDM symbols occupied in another consecutive time slot; corresponding to the above-mentioned one CSI-RS pattern, there are two sets of CDM group time domain position indication information, and each set of CDM group time domain position indication information respectively indicates the OFDM symbol position occupied by the CSI-RS pattern in one time slot. When a CSI-RS resource uses only one set of time domain position indications, the minimum time domain resource occupied by all ports of the CSI-RS resource is one slot; when a CSI-RS resource uses two sets of time domain position indications, the minimum time domain resource occupied by all ports of the CSI-RS resource is two slots; the two sets of time domain position indications respectively indicate the frequency domain position within each of the two slots; it can be understood that: if only one set of time domain position indications is a valid value and the other two sets of time domain position indications are invalid values, then the minimum time domain resource occupied by all ports of the CSI-RS resource is one slot; if both sets of time domain position indications are valid values, then the minimum time domain resource occupied by all ports of the CSI-RS resource is two slots.

[0182] Among them, l0∈{0,1,…,13} and l1∈{2,3,…,12}; l2∈{0,1,…,13} and l3∈{2,3,…,12}.

[0183] Part 4: For the same port number configuration, multiple CDM+TDM+FDM aggregation patterns are supported.

[0184] 1. A 48-port CSI-RS pattern that supports at least one of the following patterns:

[0185] (1) A pattern of three cdm16-FD4-TD4 groups aggregated by FDM; corresponding to the above pattern type of three cdm16-FD4-TD4 patterns aggregated by FDM;

[0186] (2) A pattern of three cdm16-FD2-TD8 groups aggregated by FDM; corresponding to the above pattern type of three cdm16-FD2-TD8 patterns aggregated by FDM;

[0187] (3) A 24-port pattern of the CDM type cdm8-FD2-TD4 is aggregated by FDM; corresponding to the above 24-port patterns of the cdm8-FD2-TD4 pattern type, which are aggregated by FDM;

[0188] (4) A 24-port pattern of the CDM type cdm8-FD2-TD4 is aggregated by TDM; corresponding to the above 24-port pattern of two cdm8-FD2-TD4 patterns aggregated by TDM;

[0189] (5) A 24-port pattern of the CDM type cdm4-FD2-TD2 is aggregated by FDM; corresponding to the above 24-port patterns of the cdm4-FD2-TD2 pattern type, which are aggregated by FDM;

[0190] (6) A 24-port pattern of the CDM type cdm4-FD2-TD2 is aggregated by TDM; corresponding to the above 24-port pattern of two cdm4-FD2-TD2 patterns aggregated by TDM;

[0191] In some embodiments, the CDM type is a 24-port pattern of cdm4-FD2-TD2, and all OFDM symbols occupied in the time domain must be continuous;

[0192] (7) A 24-port pattern of fd-CDM2 CDM type aggregated by FDM; corresponding to the above 24-port pattern of two fd-CDM2 pattern types aggregated by FDM;

[0193] (8) A 24-port pattern of fd-CDM2 type aggregated by TDM; corresponding to the above 24-port pattern of two fd-CDM2 pattern types aggregated by TDM;

[0194] In some embodiments, the CDM type is a 24-port pattern of fd-CDM2, and all OFDM symbols occupied in the time domain must be continuous.

[0195] Specifically, as shown in Table 1, a 48-port CSI-RS pattern supports at least one of the following configurations, where: Can include k0, k1, k2, etc. It can contain l0, l1, l2, etc. The CDM group index j is correspond:

[0196] Table 1

[0197] The content (1,0.5) under density in the above table indicates that the pattern supports two densities, 1 and 0.5. Table 1 above illustrates 11 different configuration options.

[0198] 2. A 64-port CSI-RS pattern that supports at least one of the following patterns:

[0199] (1) Four cdm16-FD4-TD4 groups are aggregated by FDM; corresponding to the above pattern type of four cdm16-FD4-TD4 patterns aggregated by FDM;

[0200] (2) Four cdm16-FD2-TD8 groups are aggregated by FDM; corresponding to the above pattern type of four cdm16-FD2-TD8 patterns aggregated by FDM;

[0201] (3) formed by the aggregation of two cdm32-FD4-TD8 groups by FDM; corresponding to the above pattern type of two cdm32-FD4-TD8 patterns aggregated by FDM;

[0202] (4) A 32-port pattern of the CDM type cdm8-FD2-TD4 is aggregated by TDM; corresponding to the above 32-port patterns of the two cdm8-FD2-TD4 pattern types aggregated by TDM;

[0203] (5) A 32-port pattern of the CDM type cdm4-FD2-TD2 is aggregated by TDM; corresponding to the above 32-port pattern of two cdm4-FD2-TD2 patterns aggregated by TDM;

[0204] In some embodiments, the CDM type is a 32-port pattern of cdm4-FD2-TD2, and all OFDM symbols occupied in the time domain must be continuous;

[0205] (6) A 32-port pattern of fd-CDM2 type aggregated by TDM; corresponding to the above 32-port pattern of two fd-CDM2 pattern types aggregated by TDM;

[0206] In some embodiments, the CDM type is a 32-port pattern of fd-CDM2, and all OFDM symbols occupied in the time domain must be continuous.

[0207] Specifically, as shown in Table 2, a 64-port CSI-RS pattern supports at least one of the following configurations, wherein the following 1 st PRB and 2 nd The content corresponding to PRB indicates the configuration for two PRBs. If two PRBs are not explicitly mentioned, the configuration for one PRB may be assumed by default, but is not limited to this:

[0208] Table 2

[0209] Here, l1+2 indicates that the starting position of the OFDM symbols occupied by the CDM group in the time domain is l1+2 OFDM symbols, and the others are similar and will not be described in detail. Table 2 above illustrates 9 different configuration options.

[0210] 3. A 96-port CSI-RS pattern that supports at least one of the following patterns:

[0211] (1) Aggregated by 6 cdm16-FD2-TD8 groups through FDM; corresponding to the above pattern type of 6 cdm16-FD2-TD8 patterns aggregated by FDM;

[0212] (2) Aggregated by 6 cdm16-FD4-TD4 groups through FDM; corresponding to the above pattern type of 6 cdm16-FD4-TD4 patterns aggregated by FDM;

[0213] (3) Aggregated by 6 cdm16-FD4-TD4 groups through FDM+TDM; corresponding to the above pattern type of 6 cdm16-FD4-TD4 patterns aggregated by FDM and TDM;

[0214] (4) formed by the aggregation of three cdm32-FD4-TD8 groups by FDM; corresponding to the above pattern type of three cdm32-FD4-TD8 patterns aggregated by FDM;

[0215] (5) A 48-port pattern of the CDM type cdm8-FD2-TD4, aggregated by FDM or TDM; a 48-port pattern of two cdm8-FD2-TD4 patterns, aggregated by FDM or TDM;

[0216] (6) A 24-port pattern of the CDM type cdm8-FD2-TD4, aggregated by FDM+TDM; corresponding to the above 24-port pattern of four cdm8-FD2-TD4 patterns, aggregated by FDM and TDM;

[0217] (7) A 48-port pattern of the CDM type cdm4-FD2-TD2, aggregated by FDM or TDM; corresponding to the above 48-port pattern of two cdm4-FD2-TD2 patterns, aggregated by FDM or TDM;

[0218] (8) A 24-port pattern of the CDM type cdm4-FD2-TD2, aggregated by FDM+TDM; corresponding to the above 24-port pattern of four cdm4-FD2-TD2 patterns, aggregated by FDM and TDM;

[0219] In some embodiments, the CDM type is a 24- and / or 48-port pattern of cdm4-FD2-TD2, and all OFDM symbols occupied in the time domain must be continuous;

[0220] (9) A 48-port pattern of fd-CDM2 type aggregated by FDM or TDM; corresponding to the above 48-port pattern of two fd-CDM2 pattern types aggregated by FDM or TDM;

[0221] (10) A 24-port pattern of fd-CDM2 type aggregated by FDM+TDM; corresponding to the above 24-port pattern of four fd-CDM2 pattern types aggregated by FDM and TDM;

[0222] In some embodiments, the CDM type is a 24- and / or 48-port pattern of fd-CDM2, and all OFDM symbols occupied in the time domain must be continuous.

[0223] Specifically, as shown in Table 3, a 96-port CSI-RS pattern supports at least one of the following configurations:

[0224] Table 3

[0225] Table 3 above illustrates 10 different configuration options.

[0226] 4. A 128-port CSI-RS pattern that supports at least one of the following patterns:

[0227] (1) Four cdm32-FD4-TD8 groups are aggregated by FDM; corresponding to the above pattern type of four cdm32-FD4-TD8 patterns aggregated by FDM;

[0228] (2) Aggregated by 8 cdm16-FD4-TD4 groups through FDM+TDM; corresponding to the above pattern type of 8 cdm16-FD4-TD4 patterns aggregated by FDM and TDM;

[0229] (3) A 32-port pattern of the CDM type cdm8-FD2-TD4, aggregated by FDM+TDM; corresponding to the above 32-port pattern of four cdm8-FD2-TD4 patterns, aggregated by FDM and TDM;

[0230] (4) A 32-port pattern of CDM type cdm8-FD2-TD4 is aggregated through TDM; corresponding to the above 32-port patterns of four cdm8-FD2-TD4 pattern types aggregated through TDM.

[0231] Specifically, as shown in Table 4, a 128-port CSI-RS pattern supports at least one of the following configurations:

[0232] Table 4

[0233] The above tables can refer to each other, and the repeated parts will not be repeated; in addition, the above pattern configuration information may include the contents of the above tables, but is not limited thereto.

[0234] Part 5, about the orthogonal cover codes used by the ports;

[0235] 1. Within a cdm16-FD4-TD4 group, the 16 antenna ports occupy the same RE position for transmission using a CDM method based on FD-4OCC+TD-4OCC. Table 5 below shows an FD-4OCC and a TD-4OCC, where each OCC index corresponds to a CSI-RS port (corresponding to the above-mentioned cdm16-FD4-TD4 pattern type, the OCC includes frequency-division FD-4OCC and time-division TD-4OCC, and different OCC indexes correspond to different FD-4OCCs and / or TD-4OCCs). This solution does not exclude the use of other orthogonal cover codes of length 4.

[0236] Table 5

[0237] Among them, W f (0) represents the first OCC value under FD, and the others are similar, such as W t (0) represents the first OCC value under TD, which will not be described here.

[0238] 2. Within a cdm16-FD2-TD8 group, the 16 antenna ports occupy the same RE position for transmission using a CDM method based on FD-2OCC+TD-8OCC. Table 6 below shows an FD-2OCC and TD-8OCC, where each OCC index corresponds to a CSI-RS port (corresponding to the above-mentioned cdm16-FD2-TD8 pattern type, the OCC includes FD-2OCC and TD-8OCC, and different OCC indexes correspond to different FD-2OCC and / or TD-8OCC). This solution does not exclude the use of other orthogonal cover codes of length 2 and 8.

[0239] Table 6

[0240] 3. Within a cdm32-FD4-TD8 group, the 32 antenna ports occupy the same RE position for transmission using a CDM method based on FD-4OCC+TD-8OCC. Table 7 below shows an FD-4OCC and TD-8OCC, where each OCC index corresponds to a CSI-RS port (corresponding to the above-mentioned cdm32-FD4-TD8 pattern type, the OCC includes FD-4OCC and TD-8OCC, and different OCC indexes correspond to different FD-4OCC and / or TD-8OCC). This solution does not exclude the use of other orthogonal cover codes of length 4 and 8.

[0241] Table 7

[0242] The above Tables 5-7 can refer to each other and the repeated parts will not be repeated.

[0243] The following is a specific example to illustrate this solution.

[0244] Example 1:

[0245] 1) The base station selects a CSI-RS pattern from the CSI-RS configuration set.

[0246] For example, configuration 2 (the parameter settings in this row) is selected from the predefined 64-port configuration set (Table 2), and for example: l0=4, k0=0, k1=2, k2=4, k3=6, density=1; this CSI-RS pattern can achieve full power utilization and has low time-frequency position indication overhead.

[0247] 2) The base station sends configuration information of the selected CSI-RS pattern to the terminal; corresponding to the above sending of the target configuration information to the terminal. The configuration information includes the number of ports (64), CDM type (cdm16-FD2-TD8), density (1), time domain position indication (l0=4), and frequency domain position indication (001111); corresponding to the above target configuration information including: number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, and CDM group time domain position indication information.

[0248] 3) The base station sends the CSI-RS to the terminal according to the selected CSI-RS pattern.

[0249] The selected CSI-RS pattern is formed by aggregating four CDM16-FD2-TD8 groups, as shown in Figure 5. The 16 antenna ports can be orthogonally transmitted within a cdm16-FD2-TD8 group, with each antenna port occupying all REs within the cdm16-FD2-TD8 group. The 16 antenna ports within a cdm16-FD2-TD8 group are distinguished by the different OCCs shown in Table 6.

[0250] 4) The terminal receives the CSI-RS configuration information; this corresponds to the above-mentioned receiving target configuration information sent by the network device.

[0251] The terminal determines which row in the configuration set it belongs to based on the number of ports, CDM type, density, time domain position indicator, and frequency domain position indicator in the configuration information, in combination with a predefined configuration set (see Tables 1 to 4 above). In this embodiment, it determines configuration 2. The terminal can know the CSI-RS pattern based on configuration 2. Subsequently, the terminal can determine the REs occupied by the CSI-RS within a PRB and a slot based on the time domain position indicator and frequency domain position indicator in the configuration information, in combination with the CSI-RS pattern. In this embodiment, the REs may correspond to OFDM symbol indices 4 to 11 in the time domain and subcarrier indices 0 to 7 in the frequency domain.

[0252] 5) After parsing the time-frequency position of the CSI-RS, the terminal receives the CSI-RS on the corresponding time-frequency resources and performs channel measurement.

[0253] Example 2:

[0254] 1) The base station selects a CSI-RS pattern from the CSI-RS configuration set.

[0255] For example, configuration 1 is selected from the predefined 64-port configuration set (Table 2), and l0=4 (k has no starting position restriction), and the frequency domain occupies 16 consecutive subcarriers (starting from 0 or other subcarriers); this CSI-RS pattern can achieve full power utilization.

[0256] The selected CSI-RS pattern is formed by aggregating four CDM16-FD4-TD4 groups, as shown in Figure 6. The 16 antenna ports can be orthogonally transmitted within a cdm16-FD4-TD4 group, with each antenna port occupying all REs within the cdm16-FD4-TD4 group. The 16 antenna ports within a cdm16-FD4-TD4 group are distinguished by the different OCCs shown in Table 5.

[0257] 2) The base station sends the configuration information of the selected CSI-RS pattern to the terminal; corresponding to the above-mentioned sending of the target configuration information to the terminal. The configuration information includes the number of ports (64), CDM type (cdm16-FD4-TD4), density (0.5), time domain position indication (l0=4) and frequency domain position indication (it is predefined that the minimum frequency domain resource occupied by all ports of a CSI-RS resource is a plurality of consecutive subcarriers within two PRBs, and the starting position of the CSI-RS resource is the first subcarrier of the PRB with the smallest index value); corresponding to the above-mentioned target configuration information including: number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information.

[0258] 3) The base station sends the CSI-RS to the terminal according to the selected CSI-RS pattern.

[0259] 4) The terminal receives the CSI-RS configuration information; this corresponds to the above-mentioned receiving target configuration information sent by the network device.

[0260] The terminal determines which row in the configuration set it is based on the number of ports, CDM type, density, time domain position indication, and frequency domain position indication in the configuration information, in combination with a predefined configuration set (see Tables 1 to 4 above). In this embodiment, it is determined to be configuration 1. The terminal can know the CSI-RS pattern based on configuration 1. Subsequently, the terminal can determine the REs occupied by the CSI-RS in two adjacent PRBs and one slot based on the time domain position indication and frequency domain position indication in the configuration information, in combination with the CSI-RS pattern. In this embodiment, it can be: the REs corresponding to OFDM symbol indices 4 to 7 in the time domain and PRB1 subcarrier indices 0 to 11 and PRB2 subcarrier indices 0 to 3 in the frequency domain.

[0261] 5) After parsing the time-frequency position of the CSI-RS, the terminal receives the CSI-RS on the corresponding time-frequency resources and performs channel measurement.

[0262] Example 3:

[0263] 1) The base station selects a CSI-RS pattern from the CSI-RS configuration set.

[0264] For example, configuration 4 is selected from the predefined 48-port configuration set (Table 1), and l0=4, l1=10, k0=6, k1=8, and k2=10. This CSI-RS pattern can achieve 1 / 2 full power utilization, and the time-frequency position indication overhead is the same as Rel-15, with a density of 1 or 0.5.

[0265] 2) The base station sends the configuration information of the selected CSI-RS pattern to the terminal; corresponding to the above sending of the target configuration information to the terminal. The configuration information includes the number of ports (48), CDM type (cdm8-FD2-TD4), density (1), time domain position indication (l0=4, l1=10) and frequency domain position indication (111000); corresponding to the above target configuration information including: number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information.

[0266] 3) The base station sends the CSI-RS to the terminal according to the selected CSI-RS pattern.

[0267] 4) The terminal receives the CSI-RS configuration information; this corresponds to the above-mentioned receiving target configuration information sent by the network device.

[0268] The terminal determines which row in the configuration set it is based on the number of ports, CDM type, density, time domain position indication, and frequency domain position indication in the configuration information, in combination with a predefined configuration set (see Tables 1 to 4 above). In this embodiment, it is determined to be configuration 4. The terminal can know the CSI-RS pattern based on configuration 4 (specifically, it can be obtained by aggregating 2 24-port patterns of 2 cdm8-FD2-TD4 pattern types through TDM). Subsequently, the terminal can determine the REs occupied by the CSI-RS in a PRB and a slot based on the time domain position indication and frequency domain position indication in the configuration information, in combination with the CSI-RS pattern. In this embodiment, it can be: the REs corresponding to OFDM symbol indices 4 to 7 and 10 to 13 in the time domain, and subcarrier indices 6 to 11 in the frequency domain.

[0269] 5) After parsing the time-frequency position of the CSI-RS, the terminal receives the CSI-RS on the corresponding time-frequency resources and performs channel measurement.

[0270] Example 4:

[0271] 1) The base station selects a CSI-RS pattern from the CSI-RS configuration set.

[0272] For example, configuration 6 is selected from the predefined 96-port configuration set (Table 3), and l0=4, l1=10, k0=0, k1=2, k2=4, k3=6, k4=8, k5=10; this CSI-RS pattern can achieve 1 / 4 full power utilization, and the time-frequency position indication overhead is the same as Rel-15.

[0273] 2) The base station sends the configuration information of the selected CSI-RS pattern to the terminal; corresponding to the above sending of the target configuration information to the terminal. The configuration information includes the number of ports (96), CDM type (cdm4-FD2-TD4), density (1), time domain position indication (l0=4, l1=10) and frequency domain position indication (111111); corresponding to the above target configuration information including: number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information.

[0274] 3) The base station sends the CSI-RS to the terminal according to the selected CSI-RS pattern.

[0275] 4) The terminal receives the CSI-RS configuration information; this corresponds to the above-mentioned receiving target configuration information sent by the network device.

[0276] The terminal determines which row in the configuration set it is based on the number of ports, CDM type, density, time domain position indication, and frequency domain position indication in the configuration information, in combination with a predefined configuration set (see Tables 1 to 4 above). In this embodiment, it is determined to be configuration 6. The terminal can know the CSI-RS pattern based on configuration 6 (specifically, it can be obtained by aggregating 2 48-port patterns of the cdm8-FD2-TD4 pattern type through FDM). Subsequently, the terminal can determine the REs occupied by the CSI-RS in a PRB and a slot based on the time domain position indication and frequency domain position indication in the configuration information, in combination with the CSI-RS pattern. In this embodiment, it can be: the REs corresponding to OFDM symbol indices 4 to 7 and 10 to 13 in the time domain, and subcarrier indices 0 to 11 in the frequency domain.

[0277] 5) After parsing the time-frequency position of the CSI-RS, the terminal receives the CSI-RS on the corresponding time-frequency resources and performs channel measurement.

[0278] Example 5:

[0279] 1) The base station selects a CSI-RS pattern from the CSI-RS configuration set.

[0280] For example, configuration 1 is selected from the predefined 128-port configuration set (Table 4), and l0=4, occupying 16 consecutive subcarriers in the frequency domain; this CSI-RS pattern can achieve full power utilization.

[0281] The selected CSI-RS pattern is formed by aggregating four cmd32-FD4-TD8 groups, as shown in Figure 7. The 32 antenna ports can be orthogonally transmitted within a cmd32-FD4-TD8 group, with each antenna port occupying all REs within a cmd32-FD4-TD8 group. The 32 antenna ports within a cmd32-FD4-TD8 group are distinguished by the different OCCs shown in Table 7.

[0282] 2) The base station sends the configuration information of the selected CSI-RS pattern to the terminal; corresponding to the above-mentioned sending of the target configuration information to the terminal. The configuration information includes the number of ports (128), CDM type (cdm32-FD4-TD8), density (0.5), time domain position indication (l0=4) and frequency domain position indication (it is predefined that the minimum frequency domain resource occupied by all ports of a CSI-RS resource is a plurality of consecutive subcarriers within two PRBs, and the starting position is the first subcarrier of the PRB with the smallest index value); corresponding to the above-mentioned target configuration information including: number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information.

[0283] 3) The base station sends the CSI-RS to the terminal according to the selected CSI-RS pattern.

[0284] 4) The terminal receives the CSI-RS configuration information; this corresponds to the above-mentioned receiving target configuration information sent by the network device.

[0285] The terminal determines which row in the configuration set it is based on the number of ports, CDM type, density, time domain position indication, and frequency domain position indication in the configuration information, in combination with a predefined configuration set (see Tables 1 to 4 above). In this embodiment, it is determined to be configuration 1. The terminal can know the CSI-RS pattern based on configuration 1. Subsequently, the terminal can determine the REs occupied by the CSI-RS in two consecutive PRBs and one slot based on the time domain position indication and frequency domain position indication in the configuration information, in combination with the CSI-RS pattern. In this embodiment, it can be: the REs corresponding to OFDM symbol indices 4 to 11 in the time domain and PRB1 subcarrier indices 0 to 11 and PRB2 subcarrier indices 0 to 3 in the frequency domain.

[0286] 5) After parsing the time-frequency position of the CSI-RS, the terminal receives the CSI-RS on the corresponding time-frequency resources and performs channel measurement.

[0287] As described above, this solution provides a CSI-RS pattern with more than 32 ports. Moreover, the pattern scheme of this solution can support equal power transmission of CSI-RS and achieve full power utilization of CSI-RS without adding additional CSI-RS resource indication overhead and without reducing CSI-RS density.

[0288] The present disclosure also provides an information transmission device, which is a network device, as shown in FIG8 , including a memory 81 , a transceiver 82 , and a processor 83 :

[0289] The memory 81 is used to store computer programs; the transceiver 82 is used to send and receive data under the control of the processor 83; the processor 83 is used to read the computer program in the memory 81 and perform the following operations:

[0290] Determining target configuration information according to the selected channel state information reference signal CSI-RS pattern;

[0291] sending the target configuration information to the terminal via the transceiver 82;

[0292] The number of ports corresponding to the CSI-RS is greater than 32;

[0293] The CSI-RS pattern is a pattern within one or two time slots in the time domain and within one or two physical resource blocks (PRBs) in the frequency domain; the CSI-RS pattern is obtained by aggregating at least one code division multiplexing (CDM) type pattern through time division multiplexing (TDM) and / or frequency division multiplexing (FDM); the CDM type includes at least one of the following:

[0294] 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type, and 2-port pattern type;

[0295] The target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

[0296] The information transmission device provided by the embodiment of the present disclosure determines target configuration information based on the selected channel state information reference signal CSI-RS pattern; sends the target configuration information to the terminal; wherein the number of ports corresponding to the CSI-RS is greater than 32; the CSI-RS pattern is a pattern that is within one or two time slots in the time domain and within one or two physical resource blocks PRB in the frequency domain; the CSI-RS pattern is aggregated by at least one code division multiplexing CDM type pattern through time division multiplexing TDM and / or frequency division multiplexing FDM; the CDM type includes at least one of the following: 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type and 2-port pattern type; the target configuration information includes: number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information; one CDM group corresponds to one CDM type; and it can support the transmission of relevant information corresponding to CSI-RS patterns with more than 32 ports.

[0297] Specifically, the transceiver 82 is used to receive and send data under the control of the processor 83.

[0298] In FIG8 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 83 and various circuits of memory represented by memory 81. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 82 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or the like. The processor 83 is responsible for managing the bus architecture and general processing, and the memory 81 may store data used by the processor 83 when performing operations.

[0299] The processor 83 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0300] The information transmission device provided in this embodiment uses the content of the above-mentioned network device side method embodiment, and the technical features correspond to each other, which will not be repeated here.

[0301] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned network device side method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0302] The present disclosure also provides an information transmission device, which is a terminal, as shown in FIG9 , including a memory 91 , a transceiver 92 , and a processor 93 :

[0303] The memory 91 is used to store computer programs; the transceiver 92 is used to send and receive data under the control of the processor 93; the processor 93 is used to read the computer program in the memory 91 and perform the following operations:

[0304] Receiving target configuration information sent by the network device through the transceiver 92;

[0305] Determining a selected CSI-RS pattern according to the target configuration information;

[0306] The number of ports corresponding to the CSI-RS is greater than 32;

[0307] The CSI-RS pattern is a pattern within one or two time slots in the time domain and within one or two PRBs in the frequency domain; the CSI-RS pattern is obtained by aggregating at least one CDM type pattern through TDM and / or FDM; the CDM type includes at least one of the following:

[0308] 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type, and 2-port pattern type;

[0309] The target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

[0310] The information transmission device provided by the embodiment of the present disclosure receives target configuration information sent by a network device; determines the selected CSI-RS pattern according to the target configuration information; wherein the number of ports corresponding to the CSI-RS is greater than 32; the CSI-RS pattern is a pattern that is within one or two time slots in the time domain and within one or two PRBs in the frequency domain; the CSI-RS pattern is aggregated by at least one CDM type pattern through TDM and / or FDM; the CDM type includes at least one of the following: 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type and 2-port pattern type; the target configuration information includes: number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information; one CDM group corresponds to one CDM type; and can support the transmission of relevant information corresponding to CSI-RS patterns with more than 32 ports.

[0311] Specifically, the transceiver 92 is used to receive and send data under the control of the processor 93.

[0312] In FIG9 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 93 and various circuits of memory represented by memory 91. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 92 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. For different user devices, the user interface 94 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0313] The processor 93 is responsible for managing the bus architecture and general processing, and the memory 91 can store data used by the processor 93 when performing operations.

[0314] In some embodiments, the processor 93 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0315] The processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0316] The information transmission device provided in this embodiment uses the content of the above-mentioned terminal side method embodiment, and the technical features correspond to each other, which will not be repeated here.

[0317] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned terminal-side method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0318] The present disclosure also provides an information transmission device, which is applied to a network device, as shown in FIG10 , and includes:

[0319] A first determining unit 101 is configured to determine target configuration information according to a selected channel state information reference signal CSI-RS pattern;

[0320] A first sending unit 102 is configured to send the target configuration information to a terminal;

[0321] The number of ports corresponding to the CSI-RS is greater than 32;

[0322] The CSI-RS pattern is a pattern within one or two time slots in the time domain and within one or two physical resource blocks (PRBs) in the frequency domain; the CSI-RS pattern is obtained by aggregating at least one code division multiplexing (CDM) type pattern through time division multiplexing (TDM) and / or frequency division multiplexing (FDM); the CDM type includes at least one of the following:

[0323] 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type, and 2-port pattern type;

[0324] The target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

[0325] The information transmission device provided by the embodiment of the present disclosure determines target configuration information based on the selected channel state information reference signal CSI-RS pattern; sends the target configuration information to the terminal; wherein the number of ports corresponding to the CSI-RS is greater than 32; the CSI-RS pattern is a pattern that is within one or two time slots in the time domain and within one or two physical resource blocks PRB in the frequency domain; the CSI-RS pattern is aggregated by at least one code division multiplexing CDM type pattern through time division multiplexing TDM and / or frequency division multiplexing FDM; the CDM type includes at least one of the following: 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type and 2-port pattern type; the target configuration information includes: number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information; one CDM group corresponds to one CDM type; and it can support the transmission of relevant information corresponding to CSI-RS patterns with more than 32 ports.

[0326] The information transmission device provided in this embodiment uses the content of the above-mentioned network device side method embodiment, and the technical features correspond to each other, which will not be repeated here.

[0327] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned network device side method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0328] The present disclosure also provides an information transmission device, which is applied to a terminal, as shown in FIG11 , and includes:

[0329] The first receiving unit 111 is configured to receive target configuration information sent by a network device;

[0330] A second determining unit 112 is configured to determine a selected CSI-RS pattern according to the target configuration information;

[0331] The number of ports corresponding to the CSI-RS is greater than 32;

[0332] The CSI-RS pattern is a pattern within one or two time slots in the time domain and within one or two PRBs in the frequency domain; the CSI-RS pattern is obtained by aggregating at least one CDM type pattern through TDM and / or FDM; the CDM type includes at least one of the following:

[0333] 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type, and 2-port pattern type;

[0334] The target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

[0335] The information transmission device provided by the embodiment of the present disclosure receives target configuration information sent by a network device; determines the selected CSI-RS pattern according to the target configuration information; wherein the number of ports corresponding to the CSI-RS is greater than 32; the CSI-RS pattern is a pattern that is within one or two time slots in the time domain and within one or two PRBs in the frequency domain; the CSI-RS pattern is obtained by aggregating at least one CDM type pattern through TDM and / or FDM; the CDM type includes at least one of the following: 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type and 2-port pattern type; the target configuration information includes: number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information; one CDM group corresponds to one CDM type; and can support the transmission of relevant information corresponding to CSI-RS patterns with more than 32 ports.

[0336] The information transmission device provided in this embodiment uses the content of the above-mentioned terminal side method embodiment, and the technical features correspond to each other, which will not be repeated here.

[0337] It should be noted here that the above-mentioned device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned terminal-side method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0338] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0339] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0340] An embodiment of the present disclosure further provides a non-transitory readable storage medium storing a computer program, wherein the computer program is used to enable a processor to execute the above-mentioned method on the network device side or the terminal side.

[0341] The non-transitory readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO)), optical storage (such as compact discs (CD), digital video discs (DVD), Blu-ray discs (BD), high-definition versatile discs (HVD), etc.), and semiconductor storage (such as ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND (Non-volatile Memory Device) FLASH), solid-state drives (SSD)), etc.

[0342] Among them, the implementation embodiments of the above-mentioned methods on the network device side or the terminal side are all applicable to the embodiments of the non-transitory readable storage medium and can also achieve the same technical effects.

[0343] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0344] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0345] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0346] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0347] In addition, it should be noted that, in the apparatus and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. Moreover, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it will be understood that all or any steps or components of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices in hardware, firmware, software or a combination thereof, which can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

[0348] It should be noted that it should be understood that the division of the above modules is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. Moreover, these modules can all be implemented in the form of software called by a processing element; or they can all be implemented in the form of hardware; or some modules can be implemented in the form of software called by a processing element, and some modules can be implemented in the form of hardware. For example, a module can be a separately established processing element, or it can be integrated into a chip of the above-mentioned device. In addition, it can also be stored in the memory of the above-mentioned device in the form of program code, and called by a processing element of the above-mentioned device to perform the functions of the above-mentioned module. The implementation of other modules is similar. In addition, these modules can all or partly be integrated together, or they can be implemented independently. The processing element described here can be an integrated circuit with signal processing capabilities. During implementation, each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.

[0349] For example, each module, unit, sub-unit or sub-module can be one or more integrated circuits configured to implement the above method, such as one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs). For another example, when a module is implemented by scheduling program code through a processing element, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call program code. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0350] The terms "first," "second," and the like in the specification and claims of the present disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present disclosure described herein may be implemented in a sequence other than that illustrated or described herein. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units need not be limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or devices. In addition, the use of "and / or" in the specification and claims to indicate at least one of the connected objects, for example, A and / or B and / or C, means that seven situations are included: A alone, B alone, C alone, both A and B present, both B and C present, both A and C present, and all A, B, and C present. Similarly, the use of "at least one of A and B" in the specification and claims should be understood to mean "A alone, B alone, or both A and B present."

[0351] Obviously, those skilled in the art may make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include these modifications and variations.

Claims

1. An information transmission method, applied to a network device, comprising: Determining target configuration information according to the selected channel state information reference signal CSI-RS pattern; Sending the target configuration information to the terminal; The number of ports corresponding to the CSI-RS is greater than 32; The CSI-RS pattern is a pattern in one or two time slots in the time domain and in one or two physical resource blocks (PRBs) in the frequency domain; the CSI-RS pattern is obtained by aggregating at least one code division multiplexing (CDM) type pattern by time division multiplexing (TDM) and / or frequency division multiplexing (FDM); the CDM type includes at least one of the following: 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type, and 2-port pattern type; The target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

2. The information transmission method according to claim 1, wherein: The determining target configuration information according to the selected channel state information reference signal CSI-RS pattern includes: Determine target configuration information according to the pattern configuration information and the selected CSI-RS pattern; The pattern configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, CDM group time domain position indication information, CDM group index, frequency domain index within the CDM group, and time domain index within the CDM group.

3. The information transmission method according to claim 2, wherein: The 16-port pattern type includes: cdm16-FD4-TD4 pattern type and / or cdm16-FD2-TD8 pattern type; and / or, the 32-port pattern type includes cdm32-FD4-TD8 pattern type; and / or, the 8-port pattern type includes cdm8-FD2-TD4 pattern type; and / or, the 4-port pattern type includes cdm4-FD2-TD2 pattern type; and / or, the 2-port pattern type includes fd-CDM2 pattern type; The cdm16-FD4-TD4 pattern type indicates that the pattern occupies 4 consecutive resource elements RE in the frequency domain and 4 consecutive RE in the time domain; each port occupies 16 REs, and each port corresponds to a different orthogonal cover code OCC; The cdm16-FD2-TD8 pattern type indicates that the pattern occupies 2 consecutive REs in the frequency domain and 8 consecutive REs in the time domain; each port occupies 16 REs, and each port corresponds to a different OCC; The cdm32-FD4-TD8 pattern type indicates that the pattern occupies 4 consecutive REs in the frequency domain and 8 consecutive REs in the time domain; each port occupies 32 REs, and each port corresponds to a different OCC; The cdm8-FD2-TD4 pattern type indicates that the pattern occupies 2 consecutive REs in the frequency domain and 4 consecutive REs in the time domain; each port occupies 8 REs, and each port corresponds to a different OCC; The cdm4-FD2-TD2 pattern type indicates that the pattern occupies 2 consecutive REs in the frequency domain and 2 consecutive REs in the time domain; each port occupies 4 REs, and each port corresponds to a different OCC; The fd-CDM2 pattern type indicates that the pattern occupies 2 consecutive REs in the frequency domain and 1 consecutive RE in the time domain; each port occupies 2 REs, and each port corresponds to a different OCC.

4. The information transmission method according to claim 3, wherein: In the case where the CSI-RS pattern is obtained by aggregating patterns of cdm16-FD4-TD4 pattern type and / or cdm32-FD4-TD8 pattern type, the position of the CDM group contained in the CSI-RS pattern within a PRB is indicated by a high-level parameter through a 3-bit bitmap, and the bitmap is composed of a setting value b2, a setting value b1, and a setting value b0. The starting position k of the CDM group in the frequency domain i-1 =4f(i), where f(i) is the i-th bitmap with a value of 1. x The subscript index x, i∈{1,2,3}.

5. The information transmission method according to claim 3 or 4, wherein: The CDM group frequency domain position indication information is indicated in at least one of the following ways: Mode 1: One CSI-RS pattern corresponds to only one CDM group frequency domain position indication information, and the subcarrier position occupied by the CSI-RS pattern in one PRB is indicated by a set of bitmaps using high-level parameters, and all PRBs occupied by the CSI-RS pattern have the same frequency domain position; Method 2: One CSI-RS pattern corresponds to two CDM group frequency domain position indication information, and the two CDM group frequency domain position indication information are indicated by high-level parameters through two groups of bit maps, and each group of bit maps respectively indicates the subcarrier position occupied by the CSI-RS pattern in a PRB.

6. The information transmission method according to claim 5, wherein: The method 1 corresponds to at least one of the following settings: Predefine that the minimum frequency domain resource occupied by all ports of the CSI-RS pattern is one or two consecutive PRBs; A first newly added parameter is configured by a high-level parameter to indicate that the minimum frequency domain resource occupied by all ports of the CSI-RS pattern is one or two PRBs; According to the number J of CDM groups, the group size L of CDM groups and the number of antenna ports X corresponding to the target configuration information, it is determined that the minimum frequency domain resources occupied by the CSI-RS pattern are X / (J×L) PRBs; the number J of CDM groups is obtained according to the CDM group frequency domain position indication information and the CDM group time domain position indication information contained in the target configuration information, the group size L of the CDM group is obtained according to the CDM type information contained in the target configuration information, and when X / (J×L) is greater than 1, X / (J×L) PRBs are continuous.

7. The information transmission method according to claim 2 or 3, wherein: The CDM group time domain position indication information is indicated in at least one of the following ways: Method 1: one CSI-RS pattern corresponds to only one set of CDM group time domain position indication information. All time slots occupied by one CSI-RS pattern have the same time domain position; In the second method, one CSI-RS pattern corresponds to two sets of CDM group time domain position indication information, and each set of CDM group time domain position indication information respectively indicates the orthogonal frequency division multiplexing OFDM symbol position occupied by the CSI-RS pattern in one time slot.

8. The information transmission method according to claim 7, wherein: The method 1 corresponds to at least one of the following settings: It is predefined that the minimum time domain resource occupied by all ports of the CSI-RS pattern is one or two consecutive time slots; The second newly added parameter is configured by a high-level parameter to indicate that the minimum time domain resource occupied by all ports of the CSI-RS pattern is one or two time slots; According to the number J of CDM groups, the group size L of CDM groups and the number of antenna ports X corresponding to the target configuration information, it is determined that the minimum time domain resources occupied by the CSI-RS pattern is X / (J×L) time slots; the number J of CDM groups is obtained according to the CDM group frequency domain position indication information and the CDM group time domain position indication information contained in the target configuration information, the group size L of the CDM group is obtained according to the CDM type information contained in the target configuration information, and when X / (J×L) is greater than 1, X / (J×L) time slots are continuous.

9. The information transmission method according to claim 3, wherein: When the number of ports corresponding to the CSI-RS is 48, the CSI-RS pattern is obtained by using at least one of the following: The patterns of 3 cdm16-FD4-TD4 pattern types are aggregated by FDM; The patterns of 3 cdm16-FD2-TD8 pattern types are aggregated by FDM; It consists of 2 24-port patterns of cdm8-FD2-TD4 pattern type, aggregated by FDM; It consists of 2 24-port patterns of cdm8-FD2-TD4 pattern type, aggregated by TDM; It consists of 2 24-port patterns of cdm4-FD2-TD2 pattern type, aggregated by FDM; It consists of 2 24-port patterns of cdm4-FD2-TD2 pattern type, aggregated by TDM; It consists of two 24-port patterns of fd-CDM2 pattern type, aggregated by FDM; The 24-port patterns of two fd-CDM2 patterns are aggregated via TDM.

10. The information transmission method according to claim 3, wherein: When the number of ports corresponding to the CSI-RS is 64, the CSI-RS pattern is obtained by using at least one of the following: The patterns of 4 cdm16-FD4-TD4 pattern types are aggregated by FDM; The patterns of 4 cdm16-FD2-TD8 pattern types are aggregated by FDM; The patterns of 2 cdm32-FD4-TD8 pattern types are aggregated by FDM; It consists of 2 32-port patterns of cdm8-FD2-TD4 pattern type, aggregated by TDM; 32-port patterns of 2 cdm4-FD2-TD2 pattern types, aggregated by TDM; The 32-port patterns of two fd-CDM2 patterns are aggregated via TDM.

11. The information transmission method according to claim 3, wherein: When the number of ports corresponding to the CSI-RS is 96, the CSI-RS pattern is obtained by using at least one of the following: The patterns of 6 cdm16-FD2-TD8 pattern types are aggregated by FDM; The patterns of 6 cdm16-FD4-TD4 pattern types are aggregated by FDM; The patterns of 6 cdm16-FD4-TD4 pattern types are aggregated by FDM and TDM; The patterns of 3 cdm32-FD4-TD8 pattern types are aggregated by FDM; 48-port patterns of 2 cdm8-FD2-TD4 pattern types, aggregated by FDM or TDM; 24-port patterns of 4 cdm8-FD2-TD4 pattern types, aggregated by FDM and TDM; 48-port patterns of 2 cdm4-FD2-TD2 pattern types, aggregated by FDM or TDM; 24-port patterns of 4 cdm4-FD2-TD2 pattern types, aggregated by FDM and TDM; 48-port patterns of two fd-CDM2 patterns, aggregated by FDM or TDM; The 24-port pattern consists of four fd-CDM2 pattern types, aggregated by FDM and TDM.

12. The information transmission method according to claim 3, wherein: When the number of ports corresponding to the CSI-RS is 128, the CSI-RS pattern is obtained by using at least one of the following: The patterns of 4 cdm32-FD4-TD8 pattern types are aggregated by FDM; The patterns are aggregated by 8 cdm16-FD4-TD4 pattern types through FDM and TDM; 32-port patterns of 4 cdm8-FD2-TD4 pattern types, aggregated by FDM and TDM; The 32-port patterns of 4 cdm8-FD2-TD4 pattern types are aggregated via TDM.

13. The information transmission method according to claim 3, wherein: For the cdm16-FD4-TD4 pattern type, the OCC includes frequency division FD-4OCC and time division TD-4OCC, and different OCC indexes correspond to different FD-4OCC and / or TD-4OCC; And / or, for the cdm16-FD2-TD8 pattern type, the OCC includes FD-2OCC and TD-8OCC, and different OCC indexes correspond to different FD-2OCC and / or TD-8OCC; And / or, for the cdm32-FD4-TD8 pattern type, the OCC includes FD-4OCC and TD-8OCC, and different OCC indexes correspond to different FD-4OCC and / or TD-8OCC.

14. The information transmission method according to claim 13, wherein: The combination of FD-4OCC and TD-4OCC includes at least one of the following: FD-4OCC is [+1, +1, +1, +1], and TD-4OCC is [+1, +1, +1, +1]; FD-4OCC is [+1, -1, +1, -1], and TD-4OCC is [+1, +1, +1, +1]; FD-4OCC is [+1, +1, -1, -1], and TD-4OCC is [+1, +1, +1, +1]; FD-4OCC is [+1, -1, -1, +1], and TD-4OCC is [+1, +1, +1, +1]; FD-4OCC is [+1, +1, +1, +1], and TD-4OCC is [+1, -1, +1, -1]; FD-4OCC is [+1, -1, +1, -1], and TD-4OCC is [+1, -1, +1, -1]; FD-4OCC is [+1, +1, -1, -1], and TD-4OCC is [+1, -1, +1, -1]; FD-4OCC is [+1, -1, -1, +1], and TD-4OCC is [+1, -1, +1, -1]; FD-4OCC is [+1, +1, +1, +1], and TD-4OCC is [+1, +1, -1, -1]; FD-4OCC is [+1, -1, +1, -1], and TD-4OCC is [+1, +1, -1, -1]; FD-4OCC is [+1, +1, -1, -1], and TD-4OCC is [+1, +1, -1, -1]; FD-4OCC is [+1, -1, -1, +1], and TD-4OCC is [+1, +1, -1, -1]; FD-4OCC is [+1, +1, +1, +1], and TD-4OCC is [+1, -1, -1, +1]; FD-4OCC is [+1, -1, +1, -1], and TD-4OCC is [+1, -1, -1, +1]; FD-4OCC is [+1, +1, -1, -1], and TD-4OCC is [+1, -1, -1, +1]; FD-4OCC is [+1, -1, -1, +1], and TD-4OCC is [+1, -1, -1, +1].

15. The information transmission method according to claim 13, wherein: The combination of FD-2OCC and TD-8OCC includes at least one of the following: FD-2OCC is [+1, +1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; FD-2OCC is [+1, -1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; FD-2OCC is [+1, +1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1] FD-2OCC is [+1, -1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; FD-2OCC is [+1, +1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; FD-2OCC is [+1, -1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]； FD-2OCC is [+1, +1], and TD-8OCC is [+1, -1, -1, +1, -1, -1, +1]; FD-2OCC is [+1, -1], and TD-8OCC is [+1, -1, -1, +1, -1, -1, +1]; FD-2OCC is [+1, +1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; FD-2OCC is [+1, -1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; FD-2OCC is [+1, +1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; FD-2OCC is [+1, -1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; FD-2OCC is [+1, +1], and TD-8OCC is [+1, +1, -1, -1, -1, -1, +1, +1]; FD-2OCC is [+1, -1], and TD-8OCC is [+1, +1, -1, -1, -1, -1, +1, +1]; FD-2OCC is [+1, +1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1]; FD-2OCC is [+1, -1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1].

16. The information transmission method according to claim 13, wherein: The combination of FD-4OCC and TD-8OCC includes at least one of the following: FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, -1, -1, +1, -1, -1, +1]; FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, -1, -1, +1, -1, -1, +1]; FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, -1, -1, +1, -1, -1, +1]; FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, -1, -1, +1, -1, -1, +1]; FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, -1, +1, -1, -1, +1，-1，+1]； FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, +1, -1, -1, -1, -1, +1, +1]; FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, +1, -1, -1, -1, -1, +1, +1]; FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, +1, -1, -1, -1, -1, +1, +1]; FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, +1, -1, -1, -1, -1, +1, +1]; FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1]; FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1]; FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1]; The FD-4 OCC is [+1, -1, -1, +1], and the TD-8 OCC is [+1, -1, -1, +1, -1, +1, +1, -1].

17. An information transmission method, applied to a terminal, the method comprising: Receiving target configuration information sent by the network device; Determining a selected CSI-RS pattern according to the target configuration information; The number of ports corresponding to the CSI-RS is greater than 32; The CSI-RS pattern is a pattern in one or two time slots in the time domain and in one or two PRBs in the frequency domain; the CSI-RS pattern is obtained by aggregating at least one CDM type pattern through TDM and / or FDM; the CDM type includes at least one of the following: 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type, and 2-port pattern type; The target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

18. The information transmission method according to claim 17, wherein: The determining, according to the target configuration information, a selected CSI-RS pattern includes: Determining a selected CSI-RS pattern according to the pattern configuration information and the target configuration information; The pattern configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information, CDM group time domain position indication information, CDM group index, frequency domain index within the CDM group, and time domain index within the CDM group.

19. The information transmission method according to claim 18, wherein: The 16-port pattern type includes: cdm16-FD4-TD4 pattern type and / or cdm16-FD2-TD8 pattern type; and / or, the 32-port pattern type includes cdm32-FD4-TD8 pattern type; and / or, the 8-port pattern type includes cdm8-FD2-TD4 pattern type; and / or, the 4-port pattern type includes cdm4-FD2-TD2 pattern type; and / or, the 2-port pattern type includes fd-CDM2 pattern type; The cdm16-FD4-TD4 pattern type indicates that the pattern occupies 4 consecutive resource elements RE in the frequency domain and 4 consecutive RE in the time domain; each port occupies 16 REs, and each port corresponds to a different orthogonal cover code OCC; The cdm16-FD2-TD8 pattern type indicates that the pattern occupies 2 consecutive REs in the frequency domain and 8 consecutive REs in the time domain; each port occupies 16 REs, and each port corresponds to a different OCC; The cdm32-FD4-TD8 pattern type indicates that the pattern occupies 4 consecutive REs in the frequency domain and 8 consecutive REs in the time domain; each port occupies 32 REs, and each port corresponds to a different OCC; The cdm8-FD2-TD4 pattern type indicates that the pattern occupies 2 consecutive REs in the frequency domain and 4 consecutive REs in the time domain; each port occupies 8 REs, and each port corresponds to a different OCC; The cdm4-FD2-TD2 pattern type indicates that the pattern occupies 2 consecutive REs in the frequency domain and 2 consecutive REs in the time domain; each port occupies 4 REs, and each port corresponds to a different OCC; The fd-CDM2 pattern type indicates that the pattern occupies 2 consecutive REs in the frequency domain and 1 consecutive RE in the time domain; each port occupies 2 REs, and each port corresponds to a different OCC.

20. The information transmission method according to claim 19, wherein: In the case where the CSI-RS pattern is obtained by aggregating patterns of cdm16-FD4-TD4 pattern type and / or cdm32-FD4-TD8 pattern type, the position of the CDM group contained in the CSI-RS pattern within a PRB is indicated by a high-level parameter through a 3-bit bitmap, and the bitmap is composed of a setting value b2, a setting value b1, and a setting value b0. The starting position k of the CDM group in the frequency domain i-1 =4f(i), where f(i) is the i-th bitmap with a value of 1. x The subscript index x, i∈{1,2,3}.

21. The information transmission method according to claim 19 or 20, wherein: The CDM group frequency domain position indication information is indicated in at least one of the following ways: Mode 1: One CSI-RS pattern corresponds to only one CDM group frequency domain position indication information, and the subcarrier position occupied by the CSI-RS pattern in one PRB is indicated by a set of bitmaps using high-level parameters, and all PRBs occupied by the CSI-RS pattern have the same frequency domain position; Method 2: One CSI-RS pattern corresponds to two CDM group frequency domain position indication information, and the two CDM group frequency domain position indication information are indicated by high-level parameters through two groups of bit maps, and each group of bit maps respectively indicates the subcarrier position occupied by the CSI-RS pattern in a PRB.

22. The information transmission method according to claim 21, wherein: The method 1 corresponds to at least one of the following settings: Predefine that the minimum frequency domain resource occupied by all ports of the CSI-RS pattern is one or two consecutive PRBs; A first newly added parameter is configured by a high-level parameter to indicate that the minimum frequency domain resource occupied by all ports of the CSI-RS pattern is one or two PRBs; According to the number J of CDM groups, the group size L of CDM groups and the number of antenna ports X corresponding to the target configuration information, it is determined that the minimum frequency domain resources occupied by the CSI-RS pattern are X / (J×L) PRBs; the number J of CDM groups is obtained according to the CDM group frequency domain position indication information and the CDM group time domain position indication information contained in the target configuration information, the group size L of the CDM group is obtained according to the CDM type information contained in the target configuration information, and when X / (J×L) is greater than 1, X / (J×L) PRBs are continuous.

23. The information transmission method according to claim 18 or 19, wherein: The CDM group time domain position indication information is indicated in at least one of the following ways: Mode 1: One CSI-RS pattern corresponds to only one set of CDM group time domain position indication information, and all time slots occupied by one CSI-RS pattern have the same time domain position; In the second method, one CSI-RS pattern corresponds to two sets of CDM group time domain position indication information, and each set of CDM group time domain position indication information respectively indicates the OFDM symbol position occupied by the CSI-RS pattern in a time slot.

24. The information transmission method according to claim 23, wherein: The method 1 corresponds to at least one of the following settings: It is predefined that the minimum time domain resource occupied by all ports of the CSI-RS pattern is one or two consecutive time slots; The second newly added parameter is configured by a high-level parameter to indicate that the minimum time domain resource occupied by all ports of the CSI-RS pattern is one or two time slots; According to the number J of CDM groups, the group size L of CDM groups and the number of antenna ports X corresponding to the target configuration information, it is determined that the minimum time domain resources occupied by the CSI-RS pattern is X / (J×L) time slots; the number J of CDM groups is obtained according to the CDM group frequency domain position indication information and the CDM group time domain position indication information contained in the target configuration information, the group size L of the CDM group is obtained according to the CDM type information contained in the target configuration information, and when X / (J×L) is greater than 1, X / (J×L) time slots are continuous.

25. The information transmission method according to claim 19, wherein: When the number of ports corresponding to the CSI-RS is 48, the CSI-RS pattern is obtained by using at least one of the following: The patterns of 3 cdm16-FD4-TD4 pattern types are aggregated by FDM; The patterns of 3 cdm16-FD2-TD8 pattern types are aggregated by FDM; It consists of 2 24-port patterns of cdm8-FD2-TD4 pattern type, aggregated by FDM; It consists of 2 24-port patterns of cdm8-FD2-TD4 pattern type, aggregated by TDM; It consists of 2 24-port patterns of cdm4-FD2-TD2 pattern type, aggregated by FDM; It consists of 2 24-port patterns of cdm4-FD2-TD2 pattern type, aggregated by TDM; It consists of two 24-port patterns of fd-CDM2 pattern type, aggregated by FDM; The 24-port patterns of two fd-CDM2 patterns are aggregated via TDM.

26. The information transmission method according to claim 19, wherein: When the number of ports corresponding to the CSI-RS is 64, the CSI-RS pattern is obtained by using at least one of the following: The patterns of 4 cdm16-FD4-TD4 pattern types are aggregated by FDM; The patterns of 4 cdm16-FD2-TD8 pattern types are aggregated by FDM; The patterns of 2 cdm32-FD4-TD8 pattern types are aggregated by FDM; It consists of 2 32-port patterns of cdm8-FD2-TD4 pattern type, aggregated by TDM; 32-port patterns of 2 cdm4-FD2-TD2 pattern types, aggregated by TDM; The 32-port patterns of two fd-CDM2 patterns are aggregated via TDM.

27. The information transmission method according to claim 19, wherein: When the number of ports corresponding to the CSI-RS is 96, the CSI-RS pattern is obtained by using at least one of the following: The patterns of 6 cdm16-FD2-TD8 pattern types are aggregated by FDM; The patterns of 6 cdm16-FD4-TD4 pattern types are aggregated by FDM; The patterns of 6 cdm16-FD4-TD4 pattern types are aggregated by FDM and TDM; The patterns of 3 cdm32-FD4-TD8 pattern types are aggregated by FDM; 48-port patterns of 2 cdm8-FD2-TD4 pattern types, aggregated by FDM or TDM; 24-port patterns of 4 cdm8-FD2-TD4 pattern types, aggregated by FDM and TDM; 48-port patterns of 2 cdm4-FD2-TD2 pattern types, aggregated by FDM or TDM; 24-port patterns of 4 cdm4-FD2-TD2 pattern types, aggregated by FDM and TDM; 48-port patterns of two fd-CDM2 patterns, aggregated by FDM or TDM; The 24-port pattern consists of four fd-CDM2 pattern types, aggregated by FDM and TDM.

28. The information transmission method according to claim 19, wherein: When the number of ports corresponding to the CSI-RS is 128, the CSI-RS pattern is obtained by using at least one of the following: The patterns of 4 cdm32-FD4-TD8 pattern types are aggregated by FDM; The patterns are aggregated by 8 cdm16-FD4-TD4 pattern types through FDM and TDM; 32-port patterns of 4 cdm8-FD2-TD4 pattern types, aggregated by FDM and TDM; The 32-port patterns of 4 cdm8-FD2-TD4 pattern types are aggregated via TDM.

29. The information transmission method according to claim 19, wherein: For the cdm16-FD4-TD4 pattern type, the OCC includes frequency division FD-4OCC and time division TD-4OCC, and different OCC indexes correspond to different FD-4OCC and / or TD-4OCC; And / or, for the cdm16-FD2-TD8 pattern type, the OCC includes FD-2OCC and TD-8OCC, and different OCC indexes correspond to different FD-2OCC and / or TD-8OCC; And / or, for the cdm32-FD4-TD8 pattern type, the OCC includes FD-4OCC and TD-8OCC, and different OCC indexes correspond to different FD-4OCC and / or TD-8OCC.

30. The information transmission method according to claim 29, wherein: The combination of FD-4OCC and TD-4OCC includes at least one of the following: FD-4OCC is [+1, +1, +1, +1], and TD-4OCC is [+1, +1, +1, +1]; FD-4OCC is [+1, -1, +1, -1], and TD-4OCC is [+1, +1, +1, +1]; FD-4OCC is [+1, +1, -1, -1], and TD-4OCC is [+1, +1, +1, +1]; FD-4OCC is [+1, -1, -1, +1], and TD-4OCC is [+1, +1, +1, +1]; FD-4OCC is [+1, +1, +1, +1], and TD-4OCC is [+1, -1, +1, -1]; FD-4OCC is [+1, -1, +1, -1], and TD-4OCC is [+1, -1, +1, -1]; FD-4OCC is [+1, +1, -1, -1], and TD-4OCC is [+1, -1, +1, -1]; FD-4OCC is [+1, -1, -1, +1], and TD-4OCC is [+1, -1, +1, -1]; FD-4OCC is [+1, +1, +1, +1], and TD-4OCC is [+1, +1, -1, -1]; FD-4OCC is [+1, -1, +1, -1], and TD-4OCC is [+1, +1, -1, -1]; FD-4OCC is [+1, +1, -1, -1], and TD-4OCC is [+1, +1, -1, -1]; FD-4OCC is [+1, -1, -1, +1], and TD-4OCC is [+1, +1, -1, -1]; FD-4OCC is [+1, +1, +1, +1], and TD-4OCC is [+1, -1, -1, +1]; FD-4OCC is [+1, -1, +1, -1], and TD-4OCC is [+1, -1, -1, +1]; FD-4OCC is [+1, +1, -1, -1], and TD-4OCC is [+1, -1, -1, +1]; FD-4OCC is [+1, -1, -1, +1], and TD-4OCC is [+1, -1, -1, +1].

31. The information transmission method according to claim 29, wherein: The combination of FD-2OCC and TD-8OCC includes at least one of the following: FD-2OCC is [+1, +1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; FD-2OCC is [+1, -1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; FD-2OCC is [+1, +1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1] FD-2OCC is [+1, -1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; FD-2OCC is [+1, +1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; FD-2OCC is [+1, -1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; FD-2OCC is [+1, +1], and TD-8OCC is [+1, -1, -1, +1, -1, -1, +1]; FD-2OCC is [+1, -1], and TD-8OCC is [+1, -1, -1, +1, -1, -1, +1]; FD-2OCC is [+1, +1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; FD-2OCC is [+1, -1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; FD-2OCC is [+1, +1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; FD-2OCC is [+1, -1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; FD-2OCC is [+1, +1], and TD-8OCC is [+1, +1, -1, -1, -1, -1, +1, +1]; FD-2OCC is [+1, -1], and TD-8OCC is [+1, +1, -1, -1, -1, -1, +1, +1]; FD-2OCC is [+1, +1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1]; FD-2OCC is [+1, -1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1]。 32. The information transmission method according to claim 29, wherein: The combination of FD-4OCC and TD-8OCC includes at least one of the following: FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, +1, +1, +1, +1, +1, +1, +1]; FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, -1, +1, -1, +1, -1, +1, -1]; FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, +1, -1, -1, +1, +1, -1, -1]; FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, -1, -1, +1, -1, -1, +1]; FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, -1, -1, +1, -1, -1, +1]; FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, -1, -1, +1, -1, -1, +1]; FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, -1, -1, +1, -1, -1, +1]; FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, +1, +1, +1, -1, -1, -1, -1]; FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, -1, +1, -1, -1, +1, -1, +1]; FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, +1, -1, -1, -1, -1, +1, +1]; FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, +1, -1, -1, -1, -1, +1, +1]; FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, +1, -1, -1, -1, -1, +1, +1]; FD-4OCC is [+1, -1, -1, +1], and TD-8OCC is [+1, +1, -1, -1, -1, -1, +1, +1]; FD-4OCC is [+1, +1, +1, +1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1]; FD-4OCC is [+1, -1, +1, -1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1]; FD-4OCC is [+1, +1, -1, -1], and TD-8OCC is [+1, -1, -1, +1, -1, +1, +1, -1]; The FD-4 OCC is [+1, -1, -1, +1], and the TD-8 OCC is [+1, -1, -1, +1, -1, +1, +1, -1].

33. An information transmission device, the information transmission device is a network device, the information transmission device comprises a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving under the control of the processor data; a processor configured to read the computer program in the memory and perform the following operations: Determining target configuration information according to the selected channel state information reference signal CSI-RS pattern; Sending the target configuration information to a terminal via the transceiver; in, The number of ports corresponding to the CSI-RS is greater than 32; The CSI-RS pattern is a pattern in one or two time slots in the time domain and in one or two physical resource blocks (PRBs) in the frequency domain; the CSI-RS pattern is obtained by aggregating at least one code division multiplexing (CDM) type pattern by time division multiplexing (TDM) and / or frequency division multiplexing (FDM); the CDM type includes at least one of the following: 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type, and 2-port pattern type; The target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

34. An information transmission device, the information transmission device is a terminal, the information transmission device comprises a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Receiving target configuration information sent by a network device through the transceiver; Determining a selected CSI-RS pattern according to the target configuration information; in, The number of ports corresponding to the CSI-RS is greater than 32; The CSI-RS pattern is a pattern in one or two time slots in the time domain and in one or two PRBs in the frequency domain; the CSI-RS pattern is obtained by aggregating at least one CDM type pattern through TDM and / or FDM; the CDM type includes at least one of the following: 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type, and 2-port pattern type; The target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

35. An information transmission device, applied to a network device, comprising: A first determining unit, configured to determine target configuration information according to a selected channel state information reference signal CSI-RS pattern; A first sending unit, configured to send the target configuration information to a terminal; The number of ports corresponding to the CSI-RS is greater than 32; The CSI-RS pattern is a pattern in one or two time slots in the time domain and in one or two physical resource blocks (PRBs) in the frequency domain; the CSI-RS pattern is composed of at least one code division multiplexing The CDM type pattern is obtained by aggregation in the manner of time division multiplexing TDM and / or frequency division multiplexing FDM; the CDM type includes at least one of the following: 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type, and 2-port pattern type; The target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

36. An information transmission device, applied to a terminal, comprising: A first receiving unit, configured to receive target configuration information sent by a network device; A second determining unit, configured to determine a selected CSI-RS pattern according to the target configuration information; The number of ports corresponding to the CSI-RS is greater than 32; The CSI-RS pattern is a pattern in one or two time slots in the time domain and in one or two PRBs in the frequency domain; the CSI-RS pattern is obtained by aggregating at least one CDM type pattern through TDM and / or FDM; the CDM type includes at least one of the following: 16-port pattern type, 32-port pattern type, 8-port pattern type, 4-port pattern type, and 2-port pattern type; The target configuration information includes: the number of antenna ports, density information, CDM type information, CDM group frequency domain position indication information and CDM group time domain position indication information; one CDM group corresponds to one CDM type.

37. A non-transitory readable storage medium storing a computer program, wherein the computer program is used to cause a processor to execute the method according to any one of claims 1 to 32.

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