Information transmission method, device and equipment

Abstract

The invention provides an information transmission method, device and equipment, and the information transmission method comprises the steps: receiving a mapping relation transmitted by network equipment; wherein the mapping relation refers to the mapping relation between the antenna characteristic and each time domain sampling point in at least one orthogonal frequency division multiplexing (OFDM) symbol period. According to the scheme, the terminal can be supported to obtain antenna characteristic configuration of sampling point granularity, so that the terminal can be supported to obtain radio frequency channels which are not limited by the number of physical radio frequency channels and are used for transmitting data streams, namely, the number of the maximum transmitted data streams is not limited by the number of actual physical radio frequency channels, the MIMO antenna dimension is expanded, and the antenna performance is improved. The spectrum efficiency performance of the system is remarkably improved, and the problem that in the prior art, MIMO antenna dimensions are few is well solved.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to an information transmission method, device and equipment. Background Art

[0002] For existing MIMO (Multiple Input Multiple Output) systems, the number of data streams that can be supported for simultaneous transmission is limited by the number of physical RF channels at the transmitting and receiving ends, and the relationship must be satisfied: Where: N s Indicates the number of data streams transmitted simultaneously. Indicates the number of RF channels at the transmitting end. Indicates the number of RF channels on the receiving end.

[0003] Specifically, for wireless channels, according to research findings, the number and angle distribution of channel multipaths are related to the actual propagation environment, and it is generally believed that the multipath of channels in the mid- and low-frequency bands is relatively rich. However, considering various practical limiting factors, such as the size of the equipment, construction and installation requirements, cost, power consumption, etc., the actual number of RF channels at the transmitting or receiving end of the existing actual MIMO system is always limited. For example, taking the existing 5G NR (new air interface) commercial equipment as an example, the base station side is generally 32 or 64 channels, and the terminal side is 2T4R (i.e., 2 transmit and 4 receive).

[0004] Therefore, due to the limitation of the design of the RF front end, the existing actual MIMO system does not match the wireless channel environment and there is still room for further improvement. How to expand the dimension of the traditional MIMO antenna and improve the spectrum efficiency performance is a problem that needs to be solved. Summary of the invention

[0005] The object of the present invention is to provide an information transmission method, device and equipment to solve the problem of small dimensionality of MIMO antennas in the prior art.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides an information transmission method, which is applied to a terminal, including:

[0007] Receiving the mapping relationship sent by the network device;

[0008] The mapping relationship refers to: a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing (OFDM) symbol period.

[0009] Optionally, the mapping relationship includes: a first relationship between antenna characteristics and a first parameter of a time domain sampling point within at least one OFDM symbol period;

[0010] The first parameter includes: a sequence number and / or a sequence number group.

[0011] Optionally, the first parameter is determined according to the number of antenna ports and / or the sampling rate of the time domain sampling points.

[0012] Optionally, when the sequence number is determined according to the number of antenna ports, the first relationship includes:

[0013] The time domain sampling point of the first serial number corresponds to the first antenna characteristic; wherein the first serial number is determined based on the total number of time domain sampling points in an OFDM symbol period, the number of antenna ports, and at least one of the first sub-parameters, and the first sub-parameter is an integer greater than or equal to 0 and less than or equal to the total number; the first antenna characteristic is determined based on the first sub-parameter and the number of antenna ports.

[0014] Optionally, when the sequence number group is determined according to the sampling rate, the first relationship includes:

[0015] The time domain sampling point of the second sequence number corresponds to the second antenna characteristic; wherein the second sequence number is determined according to at least one of the upsampling multiple corresponding to the sampling rate, the second sub-parameter, the third sub-parameter and the offset; the second sub-parameter represents the index of the sampling point sequence number group, and the sampling point sequence number group is divided according to the total number of time domain sampling points in one OFDM symbol period and the upsampling multiple; the third sub-parameter represents the sequence number index within the sampling point sequence number group; the offset is greater than or equal to 0 and less than or equal to U s -1, the U s represents the upsampling multiple; the second antenna characteristic is determined according to at least one of the second sub-parameter, the third sub-parameter, the upsampling multiple and the offset.

[0016] Optionally, when the sequence number group is determined according to the number of antenna ports and a sampling rate, the first relationship includes:

[0017] The time domain sampling point of the third sequence number corresponds to the third antenna characteristic; wherein the third sequence number is determined according to at least one of the total number of time domain sampling points in one OFDM symbol period, the number of antenna ports, a fourth sub-parameter, a fifth sub-parameter, and a sixth sub-parameter, the fourth sub-parameter represents an index of a sampling point sequence number group, and the sampling point sequence number group is divided according to the total number and the number of antenna ports; the fifth sub-parameter is an integer greater than 0 and less than or equal to the total number; the sixth sub-parameter represents an intra-group sequence number index of the sampling point sequence number group; and the third antenna characteristic is determined according to at least one of the fourth sub-parameter, the fifth sub-parameter, the sixth sub-parameter, and the total number of sampling points contained in the sampling point sequence number group.

[0018] Optionally, the receiving a mapping relationship sent by the network device includes:

[0019] The mapping relationship sent by the receiving network device through high-layer signaling or physical layer signaling.

[0020] Optionally, the antenna characteristic refers to a spatial parameter characteristic of a single antenna unit, or a spatial parameter characteristic of an antenna array composed of at least two antenna units;

[0021] The spatial parameter characteristics include: spatial pattern characteristics of the antenna, polarization characteristics of the antenna, or reference signals and / or channels related to the beam.

[0022] Optionally, also include:

[0023] Determining antenna characteristics within a first time window according to the mapping relationship;

[0024] According to the determined antenna characteristics, updating characteristic parameters of a transmitting antenna or a receiving antenna within the first time window to obtain at least two radio frequency channels or antenna ports;

[0025] Utilizing the at least two radio frequency channels or antenna ports to perform multiple-input multiple-output (MIMO) transmission;

[0026] The first time window includes: at least one OFDM symbol period.

[0027] The embodiment of the present invention further provides an information transmission method, which is applied to a network device, comprising:

[0028] Determine a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing (OFDM) symbol period;

[0029] The mapping relationship is sent to the terminal.

[0030] Optionally, the mapping relationship includes: a first relationship between antenna characteristics and a first parameter of a time domain sampling point within at least one OFDM symbol period;

[0031] The first parameter includes: a sequence number and / or a sequence number group.

[0032] Optionally, the first parameter is determined according to the number of antenna ports and / or the sampling rate of the time domain sampling points.

[0033] Optionally, when the sequence number is determined according to the number of antenna ports, the first relationship includes:

[0034] The time domain sampling point of the first serial number corresponds to the first antenna characteristic; wherein the first serial number is determined based on the total number of time domain sampling points in an OFDM symbol period, the number of antenna ports, and at least one of the first sub-parameters, and the first sub-parameter is an integer greater than or equal to 0 and less than or equal to the total number; the first antenna characteristic is determined based on the first sub-parameter and the number of antenna ports.

[0035] Optionally, when the sequence number group is determined according to the sampling rate, the first relationship includes:

[0036] The time domain sampling point of the second sequence number corresponds to the second antenna characteristic; wherein the second sequence number is determined according to at least one of the upsampling multiple corresponding to the sampling rate, the second sub-parameter, the third sub-parameter and the offset; the second sub-parameter represents the index of the sampling point sequence number group, and the sampling point sequence number group is divided according to the total number of time domain sampling points in one OFDM symbol period and the upsampling multiple; the third sub-parameter represents the sequence number index within the sampling point sequence number group; the offset is greater than or equal to 0 and less than or equal to U s -1, the U s represents the upsampling multiple; the second antenna characteristic is determined according to at least one of the second sub-parameter, the third sub-parameter, the upsampling multiple and the offset.

[0037] Optionally, when the sequence number group is determined according to the number of antenna ports and a sampling rate, the first relationship includes:

[0038] The time domain sampling point of the third sequence number corresponds to the third antenna characteristic; wherein the third sequence number is determined according to at least one of the total number of time domain sampling points in one OFDM symbol period, the number of antenna ports, a fourth sub-parameter, a fifth sub-parameter, and a sixth sub-parameter, the fourth sub-parameter represents an index of a sampling point sequence number group, and the sampling point sequence number group is divided according to the total number and the number of antenna ports; the fifth sub-parameter is an integer greater than 0 and less than or equal to the total number; the sixth sub-parameter represents an intra-group sequence number index of the sampling point sequence number group; and the third antenna characteristic is determined according to at least one of the fourth sub-parameter, the fifth sub-parameter, the sixth sub-parameter, and the total number of sampling points contained in the sampling point sequence number group.

[0039] Optionally, the sending the mapping relationship to the terminal includes:

[0040] The mapping relationship is sent to the terminal through high-layer signaling or physical-layer signaling.

[0041] Optionally, the antenna characteristic refers to a spatial parameter characteristic of a single antenna unit, or a spatial parameter characteristic of an antenna array composed of at least two antenna units;

[0042] The spatial parameter characteristics include: spatial pattern characteristics of the antenna, polarization characteristics of the antenna, or reference signals and / or channels related to the beam.

[0043] Optionally, also include:

[0044] According to the mapping relationship, updating characteristic parameters of a transmitting antenna or a receiving antenna in at least one OFDM symbol period to obtain at least two radio frequency channels or antenna ports;

[0045] The at least two radio frequency channels or antenna ports are used to perform multiple-input multiple-output (MIMO) transmission.

[0046] The embodiment of the present invention further provides an information transmission device, applied to a terminal, comprising:

[0047] A first receiving module, used for receiving a mapping relationship sent by a network device;

[0048] The mapping relationship refers to: a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing (OFDM) symbol period.

[0049] Optionally, the mapping relationship includes: a first relationship between antenna characteristics and a first parameter of a time domain sampling point within at least one OFDM symbol period;

[0050] The first parameter includes: a sequence number and / or a sequence number group.

[0051] Optionally, the first parameter is determined according to the number of antenna ports and / or the sampling rate of the time domain sampling points.

[0052] Optionally, when the sequence number is determined according to the number of antenna ports, the first relationship includes:

[0053] The time domain sampling point of the first serial number corresponds to the first antenna characteristic; wherein the first serial number is determined based on the total number of time domain sampling points in an OFDM symbol period, the number of antenna ports, and at least one of the first sub-parameters, and the first sub-parameter is an integer greater than or equal to 0 and less than or equal to the total number; the first antenna characteristic is determined based on the first sub-parameter and the number of antenna ports.

[0054] Optionally, when the sequence number group is determined according to the sampling rate, the first relationship includes:

[0055] The time domain sampling point of the second sequence number corresponds to the second antenna characteristic; wherein the second sequence number is determined according to at least one of the upsampling multiple corresponding to the sampling rate, the second sub-parameter, the third sub-parameter and the offset; the second sub-parameter represents the index of the sampling point sequence number group, and the sampling point sequence number group is divided according to the total number of time domain sampling points in one OFDM symbol period and the upsampling multiple; the third sub-parameter represents the sequence number index within the sampling point sequence number group; the offset is greater than or equal to 0 and less than or equal to U s -1, the U s represents the upsampling multiple; the second antenna characteristic is determined according to at least one of the second sub-parameter, the third sub-parameter, the upsampling multiple and the offset.

[0056] Optionally, when the sequence number group is determined according to the number of antenna ports and a sampling rate, the first relationship includes:

[0057] The time domain sampling point of the third sequence number corresponds to the third antenna characteristic; wherein the third sequence number is determined according to at least one of the total number of time domain sampling points in one OFDM symbol period, the number of antenna ports, a fourth sub-parameter, a fifth sub-parameter, and a sixth sub-parameter, the fourth sub-parameter represents an index of a sampling point sequence number group, and the sampling point sequence number group is divided according to the total number and the number of antenna ports; the fifth sub-parameter is an integer greater than 0 and less than or equal to the total number; the sixth sub-parameter represents an intra-group sequence number index of the sampling point sequence number group; and the third antenna characteristic is determined according to at least one of the fourth sub-parameter, the fifth sub-parameter, the sixth sub-parameter, and the total number of sampling points contained in the sampling point sequence number group.

[0058] Optionally, the receiving a mapping relationship sent by the network device includes:

[0059] The mapping relationship sent by the receiving network device through high-layer signaling or physical layer signaling.

[0060] Optionally, the antenna characteristic refers to a spatial parameter characteristic of a single antenna unit, or a spatial parameter characteristic of an antenna array composed of at least two antenna units;

[0061] The spatial parameter characteristics include: spatial pattern characteristics of the antenna, polarization characteristics of the antenna, or reference signals and / or channels related to the beam.

[0062] Optionally, also include:

[0063] A second determination module, used to determine the antenna characteristics within the first time window according to the mapping relationship;

[0064] A first processing module, configured to update characteristic parameters of a transmitting antenna or a receiving antenna within the first time window according to the determined antenna characteristics, to obtain at least two radio frequency channels or antenna ports;

[0065] A first transmission module, configured to perform multiple-input multiple-output (MIMO) transmission using the at least two radio frequency channels or antenna ports;

[0066] The first time window includes: at least one OFDM symbol period.

[0067] The embodiment of the present invention further provides an information transmission device, which is applied to a network device, including:

[0068] A first determination module is used to determine a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing OFDM symbol period;

[0069] The first sending module is used to send the mapping relationship to the terminal.

[0070] Optionally, the mapping relationship includes: a first relationship between antenna characteristics and a first parameter of a time domain sampling point within at least one OFDM symbol period;

[0071] The first parameter includes: a sequence number and / or a sequence number group.

[0072] Optionally, the first parameter is determined according to the number of antenna ports and / or the sampling rate of the time domain sampling points.

[0073] Optionally, when the sequence number is determined according to the number of antenna ports, the first relationship includes:

[0074] The time domain sampling point of the first serial number corresponds to the first antenna characteristic; wherein the first serial number is determined based on the total number of time domain sampling points in an OFDM symbol period, the number of antenna ports, and at least one of the first sub-parameters, and the first sub-parameter is an integer greater than or equal to 0 and less than or equal to the total number; the first antenna characteristic is determined based on the first sub-parameter and the number of antenna ports.

[0075] Optionally, when the sequence number group is determined according to the sampling rate, the first relationship includes:

[0076] The time domain sampling point of the second sequence number corresponds to the second antenna characteristic; wherein the second sequence number is determined according to at least one of the upsampling multiple corresponding to the sampling rate, the second sub-parameter, the third sub-parameter and the offset; the second sub-parameter represents the index of the sampling point sequence number group, and the sampling point sequence number group is divided according to the total number of time domain sampling points in one OFDM symbol period and the upsampling multiple; the third sub-parameter represents the sequence number index within the sampling point sequence number group; the offset is greater than or equal to 0 and less than or equal to U s -1, the U s represents the upsampling multiple; the second antenna characteristic is determined according to at least one of the second sub-parameter, the third sub-parameter, the upsampling multiple and the offset.

[0077] Optionally, when the sequence number group is determined according to the number of antenna ports and a sampling rate, the first relationship includes:

[0078] The time domain sampling point of the third sequence number corresponds to the third antenna characteristic; wherein the third sequence number is determined according to at least one of the total number of time domain sampling points in one OFDM symbol period, the number of antenna ports, a fourth sub-parameter, a fifth sub-parameter, and a sixth sub-parameter, the fourth sub-parameter represents an index of a sampling point sequence number group, and the sampling point sequence number group is divided according to the total number and the number of antenna ports; the fifth sub-parameter is an integer greater than 0 and less than or equal to the total number; the sixth sub-parameter represents an intra-group sequence number index of the sampling point sequence number group; and the third antenna characteristic is determined according to at least one of the fourth sub-parameter, the fifth sub-parameter, the sixth sub-parameter, and the total number of sampling points contained in the sampling point sequence number group.

[0079] Optionally, the sending the mapping relationship to the terminal includes:

[0080] The mapping relationship is sent to the terminal through high-layer signaling or physical-layer signaling.

[0081] Optionally, the antenna characteristic refers to a spatial parameter characteristic of a single antenna unit, or a spatial parameter characteristic of an antenna array composed of at least two antenna units;

[0082] The spatial parameter characteristics include: spatial pattern characteristics of the antenna, polarization characteristics of the antenna, or reference signals and / or channels related to the beam.

[0083] Optionally, also include:

[0084] A second processing module, configured to update characteristic parameters of a transmitting antenna or a receiving antenna within at least one OFDM symbol period according to the mapping relationship, to obtain at least two radio frequency channels or antenna ports;

[0085] The second transmission module is used to perform multiple-input multiple-output MIMO transmission by using the at least two radio frequency channels or antenna ports.

[0086] An embodiment of the present invention further provides an information transmission device, which is a terminal and includes: a processor and a transceiver;

[0087] The processor is configured to receive a mapping relationship sent by a network device through the transceiver;

[0088] The mapping relationship refers to: a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing (OFDM) symbol period.

[0089] Optionally, the mapping relationship includes: a first relationship between antenna characteristics and a first parameter of a time domain sampling point within at least one OFDM symbol period;

[0090] The first parameter includes: a sequence number and / or a sequence number group.

[0091] Optionally, the first parameter is determined according to the number of antenna ports and / or the sampling rate of the time domain sampling points.

[0092] Optionally, when the sequence number is determined according to the number of antenna ports, the first relationship includes:

[0093] The time domain sampling point of the first serial number corresponds to the first antenna characteristic; wherein the first serial number is determined based on the total number of time domain sampling points in an OFDM symbol period, the number of antenna ports, and at least one of the first sub-parameters, and the first sub-parameter is an integer greater than or equal to 0 and less than or equal to the total number; the first antenna characteristic is determined based on the first sub-parameter and the number of antenna ports.

[0094] Optionally, when the sequence number group is determined according to the sampling rate, the first relationship includes:

[0095] The time domain sampling point of the second sequence number corresponds to the second antenna characteristic; wherein the second sequence number is determined according to at least one of the upsampling multiple corresponding to the sampling rate, the second sub-parameter, the third sub-parameter and the offset; the second sub-parameter represents the index of the sampling point sequence number group, and the sampling point sequence number group is divided according to the total number of time domain sampling points in one OFDM symbol period and the upsampling multiple; the third sub-parameter represents the sequence number index within the sampling point sequence number group; the offset is greater than or equal to 0 and less than or equal to U s -1, the U srepresents the upsampling multiple; the second antenna characteristic is determined according to at least one of the second sub-parameter, the third sub-parameter, the upsampling multiple and the offset.

[0096] Optionally, when the sequence number group is determined according to the number of antenna ports and a sampling rate, the first relationship includes:

[0097] The time domain sampling point of the third sequence number corresponds to the third antenna characteristic; wherein the third sequence number is determined according to at least one of the total number of time domain sampling points in one OFDM symbol period, the number of antenna ports, a fourth sub-parameter, a fifth sub-parameter, and a sixth sub-parameter, the fourth sub-parameter represents an index of a sampling point sequence number group, and the sampling point sequence number group is divided according to the total number and the number of antenna ports; the fifth sub-parameter is an integer greater than 0 and less than or equal to the total number; the sixth sub-parameter represents an intra-group sequence number index of the sampling point sequence number group; and the third antenna characteristic is determined according to at least one of the fourth sub-parameter, the fifth sub-parameter, the sixth sub-parameter, and the total number of sampling points contained in the sampling point sequence number group.

[0098] Optionally, the receiving a mapping relationship sent by the network device includes:

[0099] The mapping relationship sent by the receiving network device through high-layer signaling or physical layer signaling.

[0100] Optionally, the antenna characteristic refers to a spatial parameter characteristic of a single antenna unit, or a spatial parameter characteristic of an antenna array composed of at least two antenna units;

[0101] The spatial parameter characteristics include: spatial pattern characteristics of the antenna, polarization characteristics of the antenna, or reference signals and / or channels related to the beam.

[0102] Optionally, the processor is further configured to:

[0103] Determining antenna characteristics within a first time window according to the mapping relationship;

[0104] According to the determined antenna characteristics, updating characteristic parameters of a transmitting antenna or a receiving antenna within the first time window to obtain at least two radio frequency channels or antenna ports;

[0105] Utilizing the at least two radio frequency channels or antenna ports to perform multiple-input multiple-output (MIMO) transmission;

[0106] The first time window includes: at least one OFDM symbol period.

[0107] An embodiment of the present invention further provides an information transmission device, which is a network device and includes: a processor and a transceiver;

[0108] The processor is used to determine a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing OFDM symbol period;

[0109] The mapping relationship is sent to the terminal through the transceiver.

[0110] Optionally, the mapping relationship includes: a first relationship between antenna characteristics and a first parameter of a time domain sampling point within at least one OFDM symbol period;

[0111] The first parameter includes: a sequence number and / or a sequence number group.

[0112] Optionally, the first parameter is determined according to the number of antenna ports and / or the sampling rate of the time domain sampling points.

[0113] Optionally, when the sequence number is determined according to the number of antenna ports, the first relationship includes:

[0114] The time domain sampling point of the first serial number corresponds to the first antenna characteristic; wherein the first serial number is determined based on the total number of time domain sampling points in an OFDM symbol period, the number of antenna ports, and at least one of the first sub-parameters, and the first sub-parameter is an integer greater than or equal to 0 and less than or equal to the total number; the first antenna characteristic is determined based on the first sub-parameter and the number of antenna ports.

[0115] Optionally, when the sequence number group is determined according to the sampling rate, the first relationship includes:

[0116] The time domain sampling point of the second sequence number corresponds to the second antenna characteristic; wherein the second sequence number is determined according to at least one of the upsampling multiple corresponding to the sampling rate, the second sub-parameter, the third sub-parameter and the offset; the second sub-parameter represents the index of the sampling point sequence number group, and the sampling point sequence number group is divided according to the total number of time domain sampling points in one OFDM symbol period and the upsampling multiple; the third sub-parameter represents the sequence number index within the sampling point sequence number group; the offset is greater than or equal to 0 and less than or equal to U s -1, the U s represents the upsampling multiple; the second antenna characteristic is determined according to at least one of the second sub-parameter, the third sub-parameter, the upsampling multiple and the offset.

[0117] Optionally, when the sequence number group is determined according to the number of antenna ports and a sampling rate, the first relationship includes:

[0118] The time domain sampling point of the third sequence number corresponds to the third antenna characteristic; wherein the third sequence number is determined according to at least one of the total number of time domain sampling points in one OFDM symbol period, the number of antenna ports, a fourth sub-parameter, a fifth sub-parameter, and a sixth sub-parameter, the fourth sub-parameter represents an index of a sampling point sequence number group, and the sampling point sequence number group is divided according to the total number and the number of antenna ports; the fifth sub-parameter is an integer greater than 0 and less than or equal to the total number; the sixth sub-parameter represents an intra-group sequence number index of the sampling point sequence number group; and the third antenna characteristic is determined according to at least one of the fourth sub-parameter, the fifth sub-parameter, the sixth sub-parameter, and the total number of sampling points contained in the sampling point sequence number group.

[0119] Optionally, the sending the mapping relationship to the terminal includes:

[0120] The mapping relationship is sent to the terminal through high-layer signaling or physical-layer signaling.

[0121] Optionally, the antenna characteristic refers to a spatial parameter characteristic of a single antenna unit, or a spatial parameter characteristic of an antenna array composed of at least two antenna units;

[0122] The spatial parameter characteristics include: spatial pattern characteristics of the antenna, polarization characteristics of the antenna, or reference signals and / or channels related to the beam.

[0123] Optionally, the processor is further configured to:

[0124] According to the mapping relationship, updating characteristic parameters of a transmitting antenna or a receiving antenna in at least one OFDM symbol period to obtain at least two radio frequency channels or antenna ports;

[0125] The at least two radio frequency channels or antenna ports are used to perform multiple-input multiple-output (MIMO) transmission.

[0126] An embodiment of the present invention also provides an information transmission device, including a memory, a processor, and a program stored in the memory and executable on the processor; when the processor executes the program, the above-mentioned information transmission method on the terminal side or the network device side is implemented.

[0127] An embodiment of the present invention further provides a readable storage medium on which a program is stored. When the program is executed by a processor, the steps in the above-mentioned information transmission method on the terminal side or the network device side are implemented.

[0128] The beneficial effects of the above technical solution of the present invention are as follows:

[0129] In the above scheme, the information transmission method receives the mapping relationship sent by the network device; wherein the mapping relationship refers to: the mapping relationship between the antenna characteristics and each time domain sampling point within at least one orthogonal frequency division multiplexing OFDM symbol period; it can support the terminal to obtain the antenna characteristic configuration with sampling point granularity, so as to support the terminal to obtain the radio frequency channel for transmitting data streams that is not limited by the number of physical radio frequency channels, that is, the maximum number of transmitted data streams is not limited by the actual number of physical radio frequency channels, the MIMO antenna dimension is expanded, the spectrum efficiency performance of the system is significantly improved, and the problem of small MIMO antenna dimensions in the prior art is well solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0130] Figure 1 The information transmission method according to the embodiment of the present invention is shown in FIG. Figure 1 ;

[0131] Figure 2 The information transmission method according to the embodiment of the present invention is shown in FIG. Figure 2 ;

[0132] Figure 3 The structure of the information transmission device according to the embodiment of the present invention is shown in FIG. Figure 1 ;

[0133] Figure 4 The structure of the information transmission device according to the embodiment of the present invention is shown in FIG. Figure 2 ;

[0134] Figure 5 The structure of the information transmission device according to the embodiment of the present invention is shown as follows Figure 1 ;

[0135] Figure 6 The structure of the information transmission device according to the embodiment of the present invention is shown as follows Figure 2 . DETAILED DESCRIPTION

[0136] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0137] The present invention aims at the problem of small dimensionality of MIMO antenna in the prior art and provides an information transmission method which is applied to a terminal such as Figure 1 As shown, including:

[0138] Step 11: Receive a mapping relationship sent by a network device; wherein the mapping relationship refers to: a mapping relationship between antenna characteristics and each time domain sampling point within at least one orthogonal frequency division multiplexing (OFDM) symbol period.

[0139] Here, “each time domain sampling point” may also be referred to as different time domain sampling points, which is not limited here.

[0140] The information transmission method provided by an embodiment of the present invention receives a mapping relationship sent by a network device; wherein the mapping relationship refers to: a mapping relationship between antenna characteristics and each time domain sampling point within at least one orthogonal frequency division multiplexing (OFDM) symbol period; it can support the terminal to obtain antenna characteristic configuration at a sampling point granularity, thereby supporting the terminal to obtain a radio frequency channel for transmitting data streams that is not limited by the number of physical radio frequency channels, that is, the maximum number of transmitted data streams is not limited by the actual number of physical radio frequency channels, and the MIMO antenna dimension is expanded (it can support the transmission of more data streams and break the physical limitations), significantly improve the spectrum efficiency performance of the system, and well solve the problem of small MIMO antenna dimensions in the prior art.

[0141] The mapping relationship includes: a first relationship between antenna characteristics and a first parameter of a time domain sampling point within at least one OFDM symbol period; wherein the first parameter includes: a sequence number and / or a sequence number group.

[0142] In this way, the above mapping relationship can be further refined.

[0143] In the embodiment of the invention, the first parameter is determined according to the number of antenna ports and / or the sampling rate of the time domain sampling points.

[0144] This makes it clear how the first parameter is determined.

[0145] In an embodiment of the present invention, when the serial number is determined according to the number of antenna ports, the first relationship includes: the time domain sampling point of the first serial number corresponds to the first antenna characteristic; wherein the first serial number is determined based on the total number of time domain sampling points in an OFDM symbol period, the number of antenna ports, and at least one of the first sub-parameters, and the first sub-parameter is an integer greater than or equal to 0 and less than or equal to the total number; the first antenna characteristic is determined based on the first sub-parameter and the number of antenna ports.

[0146] In this way, the first relationship can be concretized and the above mapping relationship can be more clearly defined. The first antenna characteristic does not refer to a specific characteristic; specifically, different sampling points in a period correspond to the same or different first antenna characteristics, but the present invention is not limited thereto.

[0147] Wherein, in the case where the sequence number group is determined according to the sampling rate, the first relationship includes: the time domain sampling point of the second sequence number corresponds to the second antenna characteristic; wherein the second sequence number is determined according to at least one of the upsampling multiple corresponding to the sampling rate, the second sub-parameter, the third sub-parameter and the offset; the second sub-parameter represents the index of the sampling point sequence number group, and the sampling point sequence number group is divided according to the total number of time domain sampling points in an OFDM symbol period and the upsampling multiple; the third sub-parameter represents the sequence number index within the sampling point sequence number group; the offset is greater than or equal to 0 and less than or equal to U s -1, the U s represents the upsampling multiple; the second antenna characteristic is determined according to at least one of the second sub-parameter, the third sub-parameter, the upsampling multiple and the offset.

[0148] This can also concretize the first relationship and make the above mapping relationship clearer. The second antenna characteristic does not refer to a specific characteristic; specifically, different sampling points in a period correspond to the same or different second antenna characteristics, but it is not limited to this.

[0149] In an embodiment of the present invention, when the sequence number group is determined according to the number of antenna ports and the sampling rate, the first relationship includes: a time domain sampling point of a third sequence number corresponds to a third antenna characteristic; wherein the third sequence number is determined according to at least one of the total number of time domain sampling points in one OFDM symbol period, the number of antenna ports, a fourth sub-parameter, a fifth sub-parameter, and a sixth sub-parameter, the fourth sub-parameter represents an index of a sampling point sequence number group, and the sampling point sequence number group is divided according to the total number and the number of antenna ports; the fifth sub-parameter is an integer greater than 0 and less than or equal to the total number; the sixth sub-parameter represents an intra-group sequence number index of the sampling point sequence number group; and the third antenna characteristic is determined according to at least one of the fourth sub-parameter, the fifth sub-parameter, the sixth sub-parameter, and the total number of sampling points contained in the sampling point sequence number group.

[0150] This can also concretize the first relationship and make the above mapping relationship clearer. The third antenna characteristic does not refer to a specific characteristic; specifically, different sampling points in a period correspond to the same or different third antenna characteristics, but it is not limited to this.

[0151] The receiving of the mapping relationship sent by the network device includes: receiving the mapping relationship sent by the network device through high-layer signaling or physical-layer signaling.

[0152] In this way, the above mapping relationship can be accurately received.

[0153] In an embodiment of the present invention, the antenna characteristics refer to the spatial parameter characteristics of a single antenna unit, or the spatial parameter characteristics of an antenna array composed of at least two antenna units; wherein the spatial parameter characteristics include: the spatial radiation pattern characteristics of the antenna, the polarization characteristics of the antenna, or a reference signal and / or channel related to the beam.

[0154] In this way, the definition of antenna characteristics can be made clear. The spatial pattern characteristics may include at least one of the characteristics of the antenna unit such as amplitude and phase characteristics, which are not limited here.

[0155] Furthermore, the information transmission method also includes: determining the antenna characteristics within the first time window based on the mapping relationship; updating the characteristic parameters of the transmitting antenna or the receiving antenna within the first time window based on the determined antenna characteristics to obtain at least two RF channels or antenna ports; and performing multiple-input multiple-output MIMO transmission using the at least two RF channels or antenna ports; wherein the first time window includes: at least one OFDM symbol period.

[0156] In this way, MIMO transmission according to the above-mentioned mapping relationship can be accurately implemented, and data stream transmission is supported that is not limited by the actual number of physical RF channels, so as to achieve a MIMO transmission mode that multiplies the number of transmission data streams or layers. Among them, "updating the characteristic parameters of the transmitting antenna or the receiving antenna" can be carried out in a dynamic or semi-static manner, which is not limited here. In addition, the at least two RF channels or antenna ports (i.e., the obtained RF channels or antenna ports) may include both physically existing RF channels or antenna ports, and RF channels or antenna ports virtualized by changing the antenna characteristics between different sampling points in the OFDM symbol, but is not limited to this.

[0157] The embodiment of the present invention also provides an information transmission method, which is applied to a network device, such as Figure 2 As shown, including:

[0158] Step 21: Determine a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing (OFDM) symbol period;

[0159] Step 22: Send the mapping relationship to the terminal.

[0160] Here, “each time domain sampling point” may also be referred to as different time domain sampling points, which is not limited here.

[0161] The information transmission method provided in the embodiment of the present invention determines the mapping relationship between antenna characteristics and each time domain sampling point within at least one orthogonal frequency division multiplexing (OFDM) symbol period; sends the mapping relationship to the terminal; and can support the terminal to obtain the antenna characteristic configuration at the sampling point granularity, thereby supporting the terminal to obtain a radio frequency channel for transmitting data streams that is not limited by the number of physical radio frequency channels, that is, the maximum number of transmitted data streams is not limited by the actual number of physical radio frequency channels, and the MIMO antenna dimension is expanded (it can support the transmission of more data streams and break the physical limitations), significantly improve the spectrum efficiency performance of the system, and well solve the problem of small MIMO antenna dimensions in the prior art.

[0162] The mapping relationship includes: a first relationship between antenna characteristics and a first parameter of a time domain sampling point within at least one OFDM symbol period; wherein the first parameter includes: a sequence number and / or a sequence number group.

[0163] In this way, the above mapping relationship can be further refined.

[0164] In the embodiment of the invention, the first parameter is determined according to the number of antenna ports and / or the sampling rate of the time domain sampling points.

[0165] This makes it clear how the first parameter is determined.

[0166] In an embodiment of the present invention, when the serial number is determined according to the number of antenna ports, the first relationship includes: the time domain sampling point of the first serial number corresponds to the first antenna characteristic; wherein the first serial number is determined based on the total number of time domain sampling points in an OFDM symbol period, the number of antenna ports, and at least one of the first sub-parameters, and the first sub-parameter is an integer greater than or equal to 0 and less than or equal to the total number; the first antenna characteristic is determined based on the first sub-parameter and the number of antenna ports.

[0167] In this way, the first relationship can be concretized and the above mapping relationship can be more clearly defined. The first antenna characteristic does not refer to a specific characteristic; specifically, different sampling points in a period correspond to the same or different first antenna characteristics, but the present invention is not limited thereto.

[0168] Wherein, in the case where the sequence number group is determined according to the sampling rate, the first relationship includes: the time domain sampling point of the second sequence number corresponds to the second antenna characteristic; wherein the second sequence number is determined according to at least one of the upsampling multiple corresponding to the sampling rate, the second sub-parameter, the third sub-parameter and the offset; the second sub-parameter represents the index of the sampling point sequence number group, and the sampling point sequence number group is divided according to the total number of time domain sampling points in an OFDM symbol period and the upsampling multiple; the third sub-parameter represents the sequence number index within the sampling point sequence number group; the offset is greater than or equal to 0 and less than or equal to U s -1, the U s represents the upsampling multiple; the second antenna characteristic is determined according to at least one of the second sub-parameter, the third sub-parameter, the upsampling multiple and the offset.

[0169] This can also concretize the first relationship and make the above mapping relationship clearer. The second antenna characteristic does not refer to a specific characteristic; specifically, different sampling points in a period correspond to the same or different second antenna characteristics, but it is not limited to this.

[0170] In an embodiment of the present invention, when the sequence number group is determined according to the number of antenna ports and the sampling rate, the first relationship includes: a time domain sampling point of a third sequence number corresponds to a third antenna characteristic; wherein the third sequence number is determined according to at least one of the total number of time domain sampling points in one OFDM symbol period, the number of antenna ports, a fourth sub-parameter, a fifth sub-parameter, and a sixth sub-parameter, the fourth sub-parameter represents an index of a sampling point sequence number group, and the sampling point sequence number group is divided according to the total number and the number of antenna ports; the fifth sub-parameter is an integer greater than 0 and less than or equal to the total number; the sixth sub-parameter represents an intra-group sequence number index of the sampling point sequence number group; and the third antenna characteristic is determined according to at least one of the fourth sub-parameter, the fifth sub-parameter, the sixth sub-parameter, and the total number of sampling points contained in the sampling point sequence number group.

[0171] This can also concretize the first relationship and make the above mapping relationship clearer. The third antenna characteristic does not refer to a specific characteristic; specifically, different sampling points in a period correspond to the same or different third antenna characteristics, but it is not limited to this.

[0172] The sending the mapping relationship to the terminal includes: sending the mapping relationship to the terminal through high-layer signaling or physical layer signaling.

[0173] In this way, the above mapping relationship can be accurately transmitted.

[0174] In an embodiment of the present invention, the antenna characteristics refer to the spatial parameter characteristics of a single antenna unit, or the spatial parameter characteristics of an antenna array composed of at least two antenna units; wherein the spatial parameter characteristics include: the spatial radiation pattern characteristics of the antenna, the polarization characteristics of the antenna, or a reference signal and / or channel related to the beam.

[0175] In this way, the definition of antenna characteristics can be made clear. The spatial pattern characteristics may include at least one of the characteristics of the antenna unit such as amplitude and phase characteristics, which are not limited here.

[0176] Furthermore, the information transmission method also includes: updating the characteristic parameters of the transmitting antenna or the receiving antenna within at least one OFDM symbol period according to the mapping relationship to obtain at least two radio frequency channels or antenna ports; and performing multiple-input multiple-output MIMO transmission using the at least two radio frequency channels or antenna ports.

[0177] In this way, MIMO transmission according to the above-mentioned mapping relationship can be accurately implemented, and data stream transmission is supported that is not limited by the actual number of physical RF channels, so as to achieve a MIMO transmission mode that multiplies the number of transmission data streams or layers. Among them, "updating the characteristic parameters of the transmitting antenna or the receiving antenna" can be carried out in a dynamic or semi-static manner, which is not limited here. In addition, the at least two RF channels or antenna ports (i.e., the obtained RF channels or antenna ports) may include both physically existing RF channels or antenna ports, and RF channels or antenna ports virtualized by changing the antenna characteristics between different sampling points in the OFDM symbol, but is not limited to this.

[0178] The information transmission method provided in the embodiment of the present invention is described below by taking an example of a base station as an example of a network device.

[0179] In response to the above technical problems, an embodiment of the present invention provides an information transmission method, which can be specifically implemented as a virtual MIMO (multiple-input multiple-output) antenna characteristic configuration method; it mainly involves: in order to further expand the dimension of traditional MIMO, thereby improving the spectrum efficiency performance, this scheme proposes a method for configuring antenna characteristics within an OFDM symbol period under a new MIMO transmission scheme; the method includes: by defining the relationship between antenna characteristics and different time domain sampling points within an OFDM symbol period (corresponding to the above-mentioned mapping relationship between antenna characteristics and each time domain sampling point within at least one orthogonal frequency division multiplexing OFDM symbol period), and the base station configures the mapping relationship to the terminal (corresponding to the above-mentioned sending of the mapping relationship to the terminal), and the terminal obtains antenna feature-related information (i.e., antenna characteristics) within a certain time window (corresponding to the above-mentioned first time window, including at least one OFDM symbol period). Wherein:

[0180] The relationship between the antenna characteristics and different time domain sampling points within an OFDM symbol period is related to the sequence number (or sequence number group) of the time domain sampling point and / or the number of antenna ports (or sampling rate) (corresponding to the first relationship between the above-mentioned antenna characteristics and the first parameter of the time domain sampling point within at least one OFDM symbol period), and the number of antenna ports is related to the number of data streams or layers.

[0181] The following is a specific example to illustrate this solution.

[0182] Example 1: Antenna characteristics are related to the sequence numbers of different time domain sampling points and the number of antenna ports within an OFDM symbol period.

[0183] For N in one OFDM symbol period s (corresponding to the total number above) time domain sampling points, numbered N p ×m+mod(n,N p ) (corresponding to the time domain sampling point of the first sequence number above) corresponds to the antenna characteristic (corresponding to the above-mentioned first antenna characteristic, the first antenna characteristic is determined according to the first sub-parameter and the number of antenna ports), where: N p Indicates the number of antenna ports, 0≤n≤N s , and n (corresponding to the first subparameter above) is taken from the set of integers, 0≤m≤N s , and m (also called a sub-parameter) is taken from an integer set, and mod means remainder. The time domain sampling point corresponding to the above-mentioned first serial number corresponds to the first antenna characteristic; wherein, the first serial number is determined based on the total number of time domain sampling points in an OFDM symbol period, the number of antenna ports, and at least one of the first sub-parameters, and the first sub-parameter is an integer greater than or equal to 0 and less than or equal to the total number; the first antenna characteristic is determined based on the first sub-parameter and the number of antenna ports. When mod(n,N p ) takes different values, Corresponding to different antenna characteristics.

[0184] Example 2: The antenna characteristics are related to different time domain sampling point sequence number groups (corresponding to the above sequence number groups) and upsampling multiples (corresponding to the above sampling rate) within an OFDM symbol period, wherein the upsampling multiple can determine the sampling rate.

[0185] For N in one OFDM symbol period s (corresponding to the total number above) time domain sampling points can be divided into N according to certain characteristics (not limited) s / M group, for example: according to the upsampling multiple U s , divided into N s / U sGroup (corresponding to the above sampling point sequence number group is divided according to the total number of time domain sampling points in one OFDM symbol period and the upsampling multiple), at this time M = U s , each group has U s sampling points, numbered U s ×m+mod(mod(n,U s ),G)+k time domain sampling point (corresponding to the second sequence numbered time domain sampling point) corresponds to the antenna characteristic v m or v mod(mod(n,Us),G)+k (corresponding to the above-mentioned second antenna characteristic, the second antenna characteristic is determined according to at least one of the second sub-parameter, the third sub-parameter, the upsampling multiple and the offset), wherein: m (corresponding to the above-mentioned second sub-parameter) represents the mth sampling point sequence number group (corresponding to the above-mentioned second sub-parameter representing the index of the sampling point sequence number group), k represents an offset, and its value range is: 0≤k≤(U s -1), and k can be selected from a positive integer set. n (also called a sub-parameter) represents the nth sampling point, and its value range is: 0 <n≤N s , and n is taken from a positive integer set; G (corresponding to the third sub-parameter above) represents the index of the sampling point sequence number group, and its value range is: 0 <G≤U s , and G is taken from a positive integer set. The time domain sampling point corresponding to the second serial number corresponds to the second antenna characteristic; wherein the second serial number is determined according to at least one of the upsampling multiple corresponding to the sampling rate, the second sub-parameter, the third sub-parameter, and the offset; the second sub-parameter represents the index of the sampling point serial number group, and the sampling point serial number group is divided according to the total number of time domain sampling points in an OFDM symbol period and the upsampling multiple; the third sub-parameter represents the intra-group serial number index of the sampling point serial number group (the third sub-parameter can be an integer greater than 0 and less than or equal to the upsampling multiple); the offset is greater than or equal to 0 and less than or equal to U s -1, the U s represents the upsampling multiple; the second antenna characteristic is determined according to at least one of the second sub-parameter, the third sub-parameter, the upsampling multiple and the offset.

[0186] Example 3: Antenna characteristics are related to different time domain sampling point sequence number groups within an OFDM symbol period and a certain quantity, which is related to the number of antenna ports and the number of sampling points within an OFDM symbol period, where the number of sampling points is related to the sampling rate.

[0187] For N in one OFDM symbol period s (corresponding to the total number above) time domain sampling points, according to the number of antenna ports, can be divided into N p Group, N pIndicates the number of antenna ports, each group has N s / N p sampling points (corresponding to the sampling point sequence number group is divided according to the total number and the number of antenna ports), the sequence number is (N s / N p )×m+mod(mod(n,N s / N p ), G)'s time domain sampling point (corresponding to the third numbered time domain sampling point above) corresponds to the antenna characteristic v m or v mod(mod(n,Ns / Np),G) (corresponding to the third antenna characteristic, the third antenna characteristic is determined according to at least one of the fourth sub-parameter, the fifth sub-parameter, the sixth sub-parameter and the total number of sampling points contained in the sampling point sequence number group), wherein: m (corresponding to the fourth sub-parameter) represents the mth sampling point sequence number group (corresponding to the fourth sub-parameter representing the index of the sampling point sequence number group), n (also referred to as a certain sub-parameter) represents the nth sampling point, and its value range is: 0 <n≤N s , and n is taken from a positive integer set; G (corresponding to the sixth sub-parameter above) represents the group number index of the Gth sampling point number group, and its value range is: 0 <G≤(N s / N p ), and G is taken from a positive integer set. The time domain sampling point corresponding to the third serial number corresponds to the third antenna characteristic; wherein the third serial number is determined according to at least one of the total number of time domain sampling points, the number of antenna ports, the fourth sub-parameter, the fifth sub-parameter and the sixth sub-parameter within an OFDM symbol period, the fourth sub-parameter represents the index of the sampling point serial number group, and the sampling point serial number group is divided according to the total number and the number of antenna ports; the fifth sub-parameter is an integer greater than 0 and less than or equal to the total number; the sixth sub-parameter represents the index of the serial number within the sampling point serial number group (the eighth sub-parameter can be an integer greater than 0 and less than or equal to the number of sampling points in each sampling point serial number group (that is, the total number of sampling points contained in each sampling point serial number group)); the third antenna characteristic is determined according to the fourth sub-parameter, the fifth sub-parameter, the sixth sub-parameter and the total number of sampling points contained in the sampling point serial number group (N s / N p ) is determined by at least one of the following.

[0188] Embodiment 4: A method for a base station to configure the above mapping relationship to a terminal.

[0189] The base station can notify the terminal of the specific change mode of the antenna characteristics at different OFDM time domain sampling points through high-level or physical layer signaling, that is, the mapping relationship between different OFDM time domain sampling points and antenna characteristics (corresponding to the above-mentioned sending of the mapping relationship to the terminal through high-level signaling or physical layer signaling). The above-mentioned mapping relationship can be described by a formula, such as: Examples 1 to 3, or it can be described in a table, which is not limited here. In addition, high-level or physical layer signaling refers to: radio resource control RRC, MAC-CE (media access control-control unit) or downlink control information DCI signaling, or a combination of the above signaling, which is not limited here.

[0190] In addition, for the sake of completeness, the following is an introduction to the relevant concepts or definitions involved in this solution:

[0191] (1) A new MIMO transmission scheme refers to: by dynamically changing the characteristics of the transmitting or receiving antenna within an OFDM symbol period, multiple radio frequency channels or antenna ports are virtualized, thereby achieving a MIMO transmission mode that multiplies the number of transmission data streams or layers. Corresponding to the above-mentioned terminal, according to the mapping relationship, the antenna characteristics within the first time window are determined; according to the determined antenna characteristics, the characteristic parameters of the transmitting antenna or the receiving antenna are updated within the first time window to obtain at least two radio frequency channels or antenna ports; multiple-input multiple-output MIMO transmission is performed using the at least two radio frequency channels or antenna ports; wherein the first time window includes: at least one OFDM symbol period; or, corresponding to the above-mentioned network device, according to the mapping relationship, the characteristic parameters of the transmitting antenna or the receiving antenna are dynamically transmitted within at least one OFDM symbol period to obtain at least two radio frequency channels or antenna ports; multiple-input multiple-output MIMO transmission is performed using the at least two radio frequency channels or antenna ports.

[0192] (2) Antenna characteristics refer to the spatial parameter characteristics of a single antenna unit, or the spatial parameter characteristics of an antenna array composed of several antenna units, wherein: the spatial parameter characteristics may be the spatial pattern characteristics of the antenna (including the amplitude and phase characteristics of the antenna unit), or the polarization characteristics of the antenna, or a reference signal and / or channel related to the beam, etc. The above-mentioned antenna characteristics refer to the spatial parameter characteristics of a single antenna unit, or the spatial parameter characteristics of an antenna array composed of at least two antenna units; wherein the spatial parameter characteristics include: the spatial pattern characteristics of the antenna, the polarization characteristics of the antenna, or the reference signal and / or channel related to the beam.

[0193] From the above, this scheme provides a method for configuring virtual MIMO antenna characteristics, which includes: the base station configures the mapping relationship between the antenna characteristics and different time domain sampling points within at least one OFDM symbol period, and configures the mapping relationship to the terminal. Among them, the mapping relationship includes the antenna characteristics and the sequence number (or sequence number group) of the time domain sampling point within at least one OFDM symbol period, and / or the number of antenna ports (or sampling rate). Accordingly, by adopting the virtual MIMO antenna characteristic configuration scheme provided by this scheme, the maximum number of transmitted data streams is not limited by the actual number of physical RF channels, and the spectrum efficiency performance of the system is significantly improved. It can also be understood that the base station configures the mapping relationship between the antenna characteristics and different time domain sampling points within at least one OFDM symbol period to the terminal, which can achieve the expansion of the dimension of the MIMO antenna.

[0194] In summary, compared with the traditional solution, this solution can break the constraint that the maximum number of transmitted data streams is limited by the number of actual physical RF channels; and can significantly improve the system's spectrum efficiency performance when the cost, power consumption, and device size are limited.

[0195] It should be noted that in this solution, the three names of antenna, antenna port and RF channel can have the same meaning and are not distinguished.

[0196] The embodiment of the present invention also provides an information transmission device, which is applied to a terminal, such as Figure 3 As shown, including:

[0197] A first receiving module 31, configured to receive a mapping relationship sent by a network device;

[0198] The mapping relationship refers to: a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing (OFDM) symbol period.

[0199] The information transmission device provided in an embodiment of the present invention receives a mapping relationship sent by a network device; wherein the mapping relationship refers to: a mapping relationship between antenna characteristics and each time domain sampling point within at least one orthogonal frequency division multiplexing (OFDM) symbol period; it can support the terminal to obtain antenna characteristic configuration at the sampling point granularity, thereby supporting the terminal to obtain a radio frequency channel for transmitting data streams that is not limited by the number of physical radio frequency channels, that is, the maximum number of transmitted data streams is not limited by the actual number of physical radio frequency channels, and the MIMO antenna dimension is expanded (it can support the transmission of more data streams and break the physical limitations), significantly improve the spectrum efficiency performance of the system, and well solve the problem of small MIMO antenna dimensions in the prior art.

[0200] The mapping relationship includes: a first relationship between antenna characteristics and a first parameter of a time domain sampling point within at least one OFDM symbol period; wherein the first parameter includes: a sequence number and / or a sequence number group.

[0201] In the embodiment of the present invention, the first parameter is determined according to the number of antenna ports and / or the sampling rate of the time domain sampling points.

[0202] In which, when the serial number is determined according to the number of antenna ports, the first relationship includes: the time domain sampling point of the first serial number corresponds to the first antenna characteristic; wherein the first serial number is determined based on the total number of time domain sampling points in an OFDM symbol period, the number of antenna ports and at least one of the first sub-parameters, and the first sub-parameter is an integer greater than or equal to 0 and less than or equal to the total number; the first antenna characteristic is determined based on the first sub-parameter and the number of antenna ports.

[0203] In an embodiment of the present invention, when the sequence number group is determined according to the sampling rate, the first relationship includes: the time domain sampling point of the second sequence number corresponds to the second antenna characteristic; wherein the second sequence number is determined according to at least one of the upsampling multiple corresponding to the sampling rate, the second sub-parameter, the third sub-parameter and the offset; the second sub-parameter represents the index of the sampling point sequence number group, and the sampling point sequence number group is divided according to the total number of time domain sampling points in an OFDM symbol period and the upsampling multiple; the third sub-parameter represents the sequence number index within the sampling point sequence number group; the offset is greater than or equal to 0 and less than or equal to U s -1, the U s represents the upsampling multiple; the second antenna characteristic is determined according to at least one of the second sub-parameter, the third sub-parameter, the upsampling multiple and the offset.

[0204] Wherein, in the case where the sequence number group is determined according to the number of antenna ports and the sampling rate, the first relationship includes: a time domain sampling point of a third sequence number corresponds to a third antenna characteristic; wherein the third sequence number is determined according to at least one of the total number of time domain sampling points in one OFDM symbol period, the number of antenna ports, a fourth sub-parameter, a fifth sub-parameter, and a sixth sub-parameter, the fourth sub-parameter represents an index of a sampling point sequence number group, and the sampling point sequence number group is divided according to the total number and the number of antenna ports; the fifth sub-parameter is an integer greater than 0 and less than or equal to the total number; the sixth sub-parameter represents an intra-group sequence number index of the sampling point sequence number group; and the third antenna characteristic is determined according to at least one of the fourth sub-parameter, the fifth sub-parameter, the sixth sub-parameter, and the total number of sampling points contained in the sampling point sequence number group.

[0205] In the embodiment of the present invention, the receiving of the mapping relationship sent by the network device includes: receiving the mapping relationship sent by the network device through high-layer signaling or physical layer signaling.

[0206] The antenna characteristics refer to the spatial parameter characteristics of a single antenna unit, or the spatial parameter characteristics of an antenna array composed of at least two antenna units; wherein the spatial parameter characteristics include: the spatial radiation pattern characteristics of the antenna, the polarization characteristics of the antenna, or a reference signal and / or channel related to the beam.

[0207] Furthermore, the information transmission device also includes: a second determination module, used to determine the antenna characteristics within the first time window according to the mapping relationship; a first processing module, used to update the characteristic parameters of the transmitting antenna or the receiving antenna within the first time window according to the determined antenna characteristics, and obtain at least two RF channels or antenna ports; a first transmission module, used to perform multiple-input multiple-output MIMO transmission using the at least two RF channels or antenna ports; wherein the first time window includes: at least one OFDM symbol period.

[0208] Among them, the implementation embodiments of the information transmission method on the above-mentioned terminal side are all applicable to the embodiments of the information transmission device and can also achieve the same technical effects.

[0209] The embodiment of the present invention also provides an information transmission device, which is applied to a network device, such as Figure 4 As shown, including:

[0210] A first determination module 41 is used to determine a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing OFDM symbol period;

[0211] The first sending module 42 is configured to send the mapping relationship to a terminal.

[0212] The information transmission device provided in the embodiment of the present invention determines the mapping relationship between antenna characteristics and each time domain sampling point within at least one orthogonal frequency division multiplexing (OFDM) symbol period; sends the mapping relationship to the terminal; and can support the terminal to obtain the antenna characteristic configuration at the sampling point granularity, thereby supporting the terminal to obtain a radio frequency channel for transmitting data streams that is not limited by the number of physical radio frequency channels, that is, the maximum number of transmitted data streams is not limited by the actual number of physical radio frequency channels, and the MIMO antenna dimension is expanded (it can support the transmission of more data streams and break the physical limitations), significantly improve the spectrum efficiency performance of the system, and well solve the problem of small MIMO antenna dimensions in the prior art.

[0213] The mapping relationship includes: a first relationship between antenna characteristics and a first parameter of a time domain sampling point within at least one OFDM symbol period; wherein the first parameter includes: a sequence number and / or a sequence number group.

[0214] In the embodiment of the present invention, the first parameter is determined according to the number of antenna ports and / or the sampling rate of the time domain sampling points.

[0215] In which, when the serial number is determined according to the number of antenna ports, the first relationship includes: the time domain sampling point of the first serial number corresponds to the first antenna characteristic; wherein the first serial number is determined based on the total number of time domain sampling points in an OFDM symbol period, the number of antenna ports and at least one of the first sub-parameters, and the first sub-parameter is an integer greater than or equal to 0 and less than or equal to the total number; the first antenna characteristic is determined based on the first sub-parameter and the number of antenna ports.

[0216] In an embodiment of the present invention, when the sequence number group is determined according to the sampling rate, the first relationship includes: the time domain sampling point of the second sequence number corresponds to the second antenna characteristic; wherein the second sequence number is determined according to at least one of the upsampling multiple corresponding to the sampling rate, the second sub-parameter, the third sub-parameter and the offset; the second sub-parameter represents the index of the sampling point sequence number group, and the sampling point sequence number group is divided according to the total number of time domain sampling points in an OFDM symbol period and the upsampling multiple; the third sub-parameter represents the sequence number index within the sampling point sequence number group; the offset is greater than or equal to 0 and less than or equal to U s -1, the U s represents the upsampling multiple; the second antenna characteristic is determined according to at least one of the second sub-parameter, the third sub-parameter, the upsampling multiple and the offset.

[0217] Wherein, in the case where the sequence number group is determined according to the number of antenna ports and the sampling rate, the first relationship includes: a time domain sampling point of a third sequence number corresponds to a third antenna characteristic; wherein the third sequence number is determined according to at least one of the total number of time domain sampling points in one OFDM symbol period, the number of antenna ports, a fourth sub-parameter, a fifth sub-parameter, and a sixth sub-parameter, the fourth sub-parameter represents an index of a sampling point sequence number group, and the sampling point sequence number group is divided according to the total number and the number of antenna ports; the fifth sub-parameter is an integer greater than 0 and less than or equal to the total number; the sixth sub-parameter represents an intra-group sequence number index of the sampling point sequence number group; and the third antenna characteristic is determined according to at least one of the fourth sub-parameter, the fifth sub-parameter, the sixth sub-parameter, and the total number of sampling points contained in the sampling point sequence number group.

[0218] In the embodiment of the present invention, sending the mapping relationship to the terminal includes: sending the mapping relationship to the terminal through high-layer signaling or physical layer signaling.

[0219] The antenna characteristics refer to the spatial parameter characteristics of a single antenna unit, or the spatial parameter characteristics of an antenna array composed of at least two antenna units; wherein the spatial parameter characteristics include: the spatial radiation pattern characteristics of the antenna, the polarization characteristics of the antenna, or a reference signal and / or channel related to the beam.

[0220] Furthermore, the information transmission device also includes: a second processing module, used to update the characteristic parameters of the transmitting antenna or the receiving antenna within at least one OFDM symbol period according to the mapping relationship to obtain at least two RF channels or antenna ports; a second transmission module, used to use the at least two RF channels or antenna ports to perform multiple-input multiple-output MIMO transmission.

[0221] Among them, the implementation embodiments of the information transmission method on the above-mentioned network device side are all applicable to the embodiments of the information transmission device and can also achieve the same technical effects.

[0222] The embodiment of the present invention further provides an information transmission device, wherein the information transmission device is a terminal, such as Figure 5 As shown, it includes: a processor 51 and a transceiver 52;

[0223] The processor 51 is configured to receive a mapping relationship sent by a network device through the transceiver 52;

[0224] The mapping relationship refers to: a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing (OFDM) symbol period.

[0225] The information transmission device provided in an embodiment of the present invention receives a mapping relationship sent by a network device; wherein the mapping relationship refers to: a mapping relationship between antenna characteristics and each time domain sampling point within at least one orthogonal frequency division multiplexing (OFDM) symbol period; it can support the terminal to obtain antenna characteristic configuration at the sampling point granularity, thereby supporting the terminal to obtain a radio frequency channel for transmitting data streams that is not limited by the number of physical radio frequency channels, that is, the maximum number of transmitted data streams is not limited by the actual number of physical radio frequency channels, and the MIMO antenna dimension is expanded (it can support the transmission of more data streams and break the physical limitations), significantly improve the spectrum efficiency performance of the system, and well solve the problem of small MIMO antenna dimensions in the prior art.

[0226] The mapping relationship includes: a first relationship between antenna characteristics and a first parameter of a time domain sampling point within at least one OFDM symbol period; wherein the first parameter includes: a sequence number and / or a sequence number group.

[0227] In the embodiment of the present invention, the first parameter is determined according to the number of antenna ports and / or the sampling rate of the time domain sampling points.

[0228] In which, when the serial number is determined according to the number of antenna ports, the first relationship includes: the time domain sampling point of the first serial number corresponds to the first antenna characteristic; wherein the first serial number is determined based on the total number of time domain sampling points in an OFDM symbol period, the number of antenna ports and at least one of the first sub-parameters, and the first sub-parameter is an integer greater than or equal to 0 and less than or equal to the total number; the first antenna characteristic is determined based on the first sub-parameter and the number of antenna ports.

[0229] In an embodiment of the present invention, when the sequence number group is determined according to the sampling rate, the first relationship includes: the time domain sampling point of the second sequence number corresponds to the second antenna characteristic; wherein the second sequence number is determined according to at least one of the upsampling multiple corresponding to the sampling rate, the second sub-parameter, the third sub-parameter and the offset; the second sub-parameter represents the index of the sampling point sequence number group, and the sampling point sequence number group is divided according to the total number of time domain sampling points in an OFDM symbol period and the upsampling multiple; the third sub-parameter represents the sequence number index within the sampling point sequence number group; the offset is greater than or equal to 0 and less than or equal to U s -1, the U s represents the upsampling multiple; the second antenna characteristic is determined according to at least one of the second sub-parameter, the third sub-parameter, the upsampling multiple and the offset.

[0230] Wherein, in the case where the sequence number group is determined according to the number of antenna ports and the sampling rate, the first relationship includes: a time domain sampling point of a third sequence number corresponds to a third antenna characteristic; wherein the third sequence number is determined according to at least one of the total number of time domain sampling points in one OFDM symbol period, the number of antenna ports, a fourth sub-parameter, a fifth sub-parameter, and a sixth sub-parameter, the fourth sub-parameter represents an index of a sampling point sequence number group, and the sampling point sequence number group is divided according to the total number and the number of antenna ports; the fifth sub-parameter is an integer greater than 0 and less than or equal to the total number; the sixth sub-parameter represents an intra-group sequence number index of the sampling point sequence number group; and the third antenna characteristic is determined according to at least one of the fourth sub-parameter, the fifth sub-parameter, the sixth sub-parameter, and the total number of sampling points contained in the sampling point sequence number group.

[0231] In the embodiment of the present invention, the receiving of the mapping relationship sent by the network device includes: receiving the mapping relationship sent by the network device through high-layer signaling or physical layer signaling.

[0232] The antenna characteristics refer to the spatial parameter characteristics of a single antenna unit, or the spatial parameter characteristics of an antenna array composed of at least two antenna units; wherein the spatial parameter characteristics include: the spatial radiation pattern characteristics of the antenna, the polarization characteristics of the antenna, or a reference signal and / or channel related to the beam.

[0233] Furthermore, the processor is also used to: determine the antenna characteristics within the first time window according to the mapping relationship; update the characteristic parameters of the transmitting antenna or the receiving antenna within the first time window according to the determined antenna characteristics to obtain at least two RF channels or antenna ports; and perform multiple-input multiple-output MIMO transmission using the at least two RF channels or antenna ports; wherein the first time window includes: at least one OFDM symbol period.

[0234] Among them, the implementation embodiments of the above-mentioned terminal-side information transmission method are all applicable to the embodiments of the information transmission device and can achieve the same technical effects.

[0235] The embodiment of the present invention further provides an information transmission device, wherein the information transmission device is a network device, such as Figure 6 As shown, it includes: a processor 61 and a transceiver 62;

[0236] The processor 61 is used to determine a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing OFDM symbol period;

[0237] The mapping relationship is sent to the terminal through the transceiver 62.

[0238] The information transmission device provided by the embodiment of the present invention determines the mapping relationship between antenna characteristics and each time domain sampling point within at least one orthogonal frequency division multiplexing (OFDM) symbol period; sends the mapping relationship to the terminal; and can support the terminal to obtain the antenna characteristic configuration at the sampling point granularity, thereby supporting the terminal to obtain a radio frequency channel for transmitting data streams that is not limited by the number of physical radio frequency channels, that is, the maximum number of transmitted data streams is not limited by the actual number of physical radio frequency channels, and the MIMO antenna dimension is expanded (it can support the transmission of more data streams and break the physical limitations), significantly improve the spectrum efficiency performance of the system, and well solve the problem of small MIMO antenna dimensions in the prior art.

[0239] The mapping relationship includes: a first relationship between antenna characteristics and a first parameter of a time domain sampling point within at least one OFDM symbol period; wherein the first parameter includes: a sequence number and / or a sequence number group.

[0240] In the embodiment of the present invention, the first parameter is determined according to the number of antenna ports and / or the sampling rate of the time domain sampling points.

[0241] In which, when the serial number is determined according to the number of antenna ports, the first relationship includes: the time domain sampling point of the first serial number corresponds to the first antenna characteristic; wherein the first serial number is determined based on the total number of time domain sampling points in an OFDM symbol period, the number of antenna ports and at least one of the first sub-parameters, and the first sub-parameter is an integer greater than or equal to 0 and less than or equal to the total number; the first antenna characteristic is determined based on the first sub-parameter and the number of antenna ports.

[0242] In an embodiment of the present invention, when the sequence number group is determined according to the sampling rate, the first relationship includes: the time domain sampling point of the second sequence number corresponds to the second antenna characteristic; wherein the second sequence number is determined according to at least one of the upsampling multiple corresponding to the sampling rate, the second sub-parameter, the third sub-parameter and the offset; the second sub-parameter represents the index of the sampling point sequence number group, and the sampling point sequence number group is divided according to the total number of time domain sampling points in an OFDM symbol period and the upsampling multiple; the third sub-parameter represents the sequence number index within the sampling point sequence number group; the offset is greater than or equal to 0 and less than or equal to U s -1, the U s represents the upsampling multiple; the second antenna characteristic is determined according to at least one of the second sub-parameter, the third sub-parameter, the upsampling multiple and the offset.

[0243] Wherein, in the case where the sequence number group is determined according to the number of antenna ports and the sampling rate, the first relationship includes: a time domain sampling point of a third sequence number corresponds to a third antenna characteristic; wherein the third sequence number is determined according to at least one of the total number of time domain sampling points in one OFDM symbol period, the number of antenna ports, a fourth sub-parameter, a fifth sub-parameter, and a sixth sub-parameter, the fourth sub-parameter represents an index of a sampling point sequence number group, and the sampling point sequence number group is divided according to the total number and the number of antenna ports; the fifth sub-parameter is an integer greater than 0 and less than or equal to the total number; the sixth sub-parameter represents an intra-group sequence number index of the sampling point sequence number group; and the third antenna characteristic is determined according to at least one of the fourth sub-parameter, the fifth sub-parameter, the sixth sub-parameter, and the total number of sampling points contained in the sampling point sequence number group.

[0244] In the embodiment of the present invention, sending the mapping relationship to the terminal includes: sending the mapping relationship to the terminal through high-layer signaling or physical layer signaling.

[0245] The antenna characteristics refer to the spatial parameter characteristics of a single antenna unit, or the spatial parameter characteristics of an antenna array composed of at least two antenna units; wherein the spatial parameter characteristics include: the spatial radiation pattern characteristics of the antenna, the polarization characteristics of the antenna, or a reference signal and / or channel related to the beam.

[0246] Furthermore, the processor is also used to: update the characteristic parameters of the transmitting antenna or the receiving antenna within at least one OFDM symbol period according to the mapping relationship to obtain at least two RF channels or antenna ports; and perform multiple-input multiple-output MIMO transmission using the at least two RF channels or antenna ports.

[0247] Among them, the implementation embodiments of the information transmission method on the above-mentioned network device side are all applicable to the embodiments of the information transmission device and can also achieve the same technical effects.

[0248] An embodiment of the present invention also provides an information transmission device, including a memory, a processor, and a program stored in the memory and executable on the processor; when the processor executes the program, the above-mentioned information transmission method on the terminal side or the network device side is implemented.

[0249] Among them, the implementation embodiments of the information transmission method on the above-mentioned terminal side or network device side are all applicable to the embodiments of the information transmission device and can achieve the same technical effects.

[0250] An embodiment of the present invention further provides a readable storage medium on which a program is stored. When the program is executed by a processor, the steps in the above-mentioned information transmission method on the terminal side or the network device side are implemented.

[0251] Among them, the implementation embodiments of the information transmission method on the above-mentioned terminal side or network device side are applicable to the embodiments of the readable storage medium and can achieve the same technical effect.

[0252] It should be noted that many functional components described in this specification are referred to as modules in order to more particularly emphasize the independence of their implementation methods.

[0253] In the embodiment of the present invention, module can be implemented with software so that it can be executed by various types of processors. For example, an executable code module of an identification can include one or more physical or logical blocks of computer instructions, for example, it can be constructed as an object, process or function. Nevertheless, the executable code of the identified module does not need to be physically located together, but can include different instructions stored in different positions, and when these instructions are logically combined together, it constitutes a module and realizes the specified purpose of the module.

[0254] In fact, executable code module can be a single instruction or many instructions, and can even be distributed on a plurality of different code segments, distributed among different programs, and distributed across a plurality of memory devices. Similarly, operating data can be identified in the module, and can be implemented and organized in the data structure of any appropriate type according to any appropriate form. The operating data can be collected as a single data set, or can be distributed in different locations (including on different storage devices), and can only be present on a system or network as an electronic signal at least in part.

[0255] When a module can be implemented by software, considering the level of existing hardware technology, a person skilled in the art can build a corresponding hardware circuit to implement the corresponding function of the module that can be implemented by software without considering the cost. The hardware circuit includes a conventional very large scale integration (VLSI) circuit or gate array and existing semiconductors such as logic chips, transistors, or other discrete components. The module can also be implemented by a programmable hardware device, such as a field programmable gate array, a programmable array logic, a programmable logic device, etc.

[0256] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary personnel in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An information transmission method, applied to a terminal, characterized in that: include: Receiving the mapping relationship sent by the network device; The mapping relationship refers to: a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing (OFDM) symbol period.

2. The information transmission method according to claim 1, characterized in that: The mapping relationship includes: a first relationship between antenna characteristics and a first parameter of a time domain sampling point within at least one OFDM symbol period; The first parameter includes: a sequence number and / or a sequence number group.

3. The information transmission method according to claim 2, characterized in that: The first parameter is determined according to the number of antenna ports and / or the sampling rate of the time domain sampling points.

4. The information transmission method according to claim 3, characterized in that: In the case where the sequence number is determined according to the number of antenna ports, the first relationship includes: The time domain sampling point of the first serial number corresponds to the first antenna characteristic; wherein the first serial number is determined based on the total number of time domain sampling points in an OFDM symbol period, the number of antenna ports, and at least one of the first sub-parameters, and the first sub-parameter is an integer greater than or equal to 0 and less than or equal to the total number; the first antenna characteristic is determined based on the first sub-parameter and the number of antenna ports.

5. The information transmission method according to claim 3, characterized in that: In the case where the sequence number group is determined according to the sampling rate, the first relationship includes: The time domain sampling point of the second sequence number corresponds to the second antenna characteristic; wherein the second sequence number is determined according to at least one of the upsampling multiple corresponding to the sampling rate, the second sub-parameter, the third sub-parameter and the offset; the second sub-parameter represents the index of the sampling point sequence number group, and the sampling point sequence number group is divided according to the total number of time domain sampling points in one OFDM symbol period and the upsampling multiple; the third sub-parameter represents the sequence number index within the sampling point sequence number group; the offset is greater than or equal to 0 and less than or equal to U s -1, the U s represents the upsampling multiple; the second antenna characteristic is determined according to at least one of the second sub-parameter, the third sub-parameter, the upsampling multiple and the offset.

6. The information transmission method according to claim 3, characterized in that: In the case where the sequence number group is determined according to the number of antenna ports and the sampling rate, the first relationship includes: The time domain sampling point of the third sequence number corresponds to the third antenna characteristic; wherein the third sequence number is determined according to at least one of the total number of time domain sampling points in one OFDM symbol period, the number of antenna ports, a fourth sub-parameter, a fifth sub-parameter, and a sixth sub-parameter, the fourth sub-parameter represents an index of a sampling point sequence number group, and the sampling point sequence number group is divided according to the total number and the number of antenna ports; the fifth sub-parameter is an integer greater than 0 and less than or equal to the total number; the sixth sub-parameter represents an intra-group sequence number index of the sampling point sequence number group; and the third antenna characteristic is determined according to at least one of the fourth sub-parameter, the fifth sub-parameter, the sixth sub-parameter, and the total number of sampling points contained in the sampling point sequence number group.

7. The information transmission method according to claim 1, characterized in that: The receiving network device sends a mapping relationship, including: The mapping relationship sent by the receiving network device through high-layer signaling or physical layer signaling.

8. The information transmission method according to claim 1, characterized in that: The antenna characteristics refer to the spatial parameter characteristics of a single antenna unit, or the spatial parameter characteristics of an antenna array composed of at least two antenna units; The spatial parameter characteristics include: spatial pattern characteristics of the antenna, polarization characteristics of the antenna, or reference signals and / or channels related to the beam.

9. The information transmission method according to claim 1, characterized in that: Also includes: Determining antenna characteristics within a first time window according to the mapping relationship; According to the determined antenna characteristics, updating characteristic parameters of a transmitting antenna or a receiving antenna within the first time window to obtain at least two radio frequency channels or antenna ports; Utilizing the at least two radio frequency channels or antenna ports to perform multiple-input multiple-output (MIMO) transmission; The first time window includes: at least one OFDM symbol period.

10. An information transmission method, applied to a network device, characterized in that: include: Determine a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing (OFDM) symbol period; The mapping relationship is sent to the terminal.

11. An information transmission device, applied to a terminal, characterized in that: include: A first receiving module, used for receiving a mapping relationship sent by a network device; The mapping relationship refers to: a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing (OFDM) symbol period.

12. An information transmission device, applied to a network device, characterized in that: include: A first determination module is used to determine a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing OFDM symbol period; The first sending module is used to send the mapping relationship to the terminal.

13. An information transmission device, the information transmission device being a terminal, characterized in that: include: processor and transceiver; The processor is configured to receive a mapping relationship sent by a network device through the transceiver; The mapping relationship refers to: a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing (OFDM) symbol period.

14. An information transmission device, the information transmission device being a network device, characterized in that: include: processor and transceiver; The processor is used to determine a mapping relationship between antenna characteristics and each time domain sampling point in at least one orthogonal frequency division multiplexing OFDM symbol period; The mapping relationship is sent to the terminal through the transceiver.

15. An information transmission device, comprising a memory, a processor, and a program stored in the memory and executable on the processor; characterized in that: When the processor executes the program, the information transmission method according to any one of claims 1 to 10 is implemented.

16. A readable storage medium having a program stored thereon, characterized in that: When the program is executed by a processor, the steps of the information transmission method according to any one of claims 1 to 10 are implemented.

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