Information configuration method and device, electronic equipment and computer readable storage medium

Abstract

The application provides an information configuration method and device, electronic equipment and computer readable storage medium. The method comprises: receiving capability reporting information from a receiving end, wherein the capability reporting information comprises periodic indication information, and the periodic indication information is used to indicate a shortest antenna characteristic switching period supported by the receiving end; determining the number of parallel transmission streams required by each radio frequency channel of the receiving end based on the capability reporting information; and configuring a target duration of a cyclic prefix (CP) according to the shortest antenna characteristic switching period and the number of parallel transmission streams, wherein the target duration is a positive integer multiple of the product of the shortest antenna characteristic switching period and the number of parallel transmission streams. Through the above configuration, the target duration of the configured CP satisfies a positive integer multiple relationship of the product of the shortest antenna characteristic switching period and the number of parallel transmission streams, so as to ensure the consistency of equivalent channels corresponding to different OFDM symbols, thereby reducing the transmission failure and improving the transmission performance.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to an information configuration method, apparatus, electronic device, and computer-readable storage medium. Background Technology

[0002] Multiple-Input Multiple-Output (MIMO) technology is a wireless communication technology that improves data transmission rate and spectral efficiency by using multiple antennas at the transmitting and receiving ends. For existing MIMO systems, the number of parallel data streams they can support is limited by the number of physical radio frequency (RF) channels at the transmitting and receiving ends. MIMO system design takes into account various practical constraints, such as cost, power consumption, and manufacturing complexity. Therefore, the number of RF channels at the transmitting or receiving end of a practical MIMO system cannot increase synchronously with the number of antenna elements; practical MIMO systems generally employ a mixed-signal architecture. However, the performance of traditional mixed-signal MIMO systems is inferior to that of pure digital MIMO systems equipped with the same number of antenna elements, each connected to one RF channel. Therefore, traditional mixed-signal MIMO systems do not fully utilize space resources, and there is still room for further performance improvement.

[0003] To address the aforementioned problems in traditional MIMO systems, a virtual MIMO technique was subsequently proposed. In this scheme, the receiver can switch its antenna characteristic pattern multiple times within the duration of an Orthogonal Frequency-Division Multiplexing (OFDM) symbol and perform oversampling, thereby enabling the number of parallel data streams to exceed the number of physical RF channels at the receiver. However, in practice, due to the difference between the antenna characteristic switching period length and the OFDM symbol length after adding a cyclic prefix (CP), the receiver antenna characteristic pattern for each OFDM symbol within a single RF channel can be inconsistent. This means that different OFDM symbols correspond to different equivalent channels, which can easily lead to transmission failures in the virtual MIMO system, resulting in poor transmission performance. Summary of the Invention

[0004] This application provides an information configuration method, apparatus, electronic device, computer-readable storage medium, and computer program product to solve the problem of poor transmission performance in existing systems.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application provide an information configuration method applied at a sending end, the method comprising:

[0007] Receive capability reporting information from the receiving end, the capability reporting information including period indication information, the period indication information being used to indicate the shortest antenna characteristic switching period supported by the receiving end;

[0008] Based on the reported capability information, determine the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive;

[0009] Based on the shortest antenna characteristic switching period and the number of parallel transmission streams, configure the target duration of the cyclic prefix (CP). The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams, where N is a positive integer.

[0010] Secondly, embodiments of this application provide an information configuration method applied to a receiving end, the method comprising:

[0011] The capability reporting information is sent to the transmitting end. The capability reporting information includes period indication information, which is used to indicate the shortest antenna characteristic switching period supported by the receiving end. The capability reporting information is used to configure the target duration of the CP. The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive, where N is a positive integer.

[0012] Thirdly, embodiments of this application provide an information configuration device applied at a sending end, the device comprising:

[0013] Receive capability reporting information from the receiving end, the capability reporting information including period indication information, the period indication information being used to indicate the shortest antenna characteristic switching period supported by the receiving end;

[0014] Based on the reported capability information, determine the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive;

[0015] Based on the shortest antenna characteristic switching period and the number of parallel transmission streams, configure the target duration of the cyclic prefix (CP). The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams, where N is a positive integer.

[0016] Fourthly, embodiments of this application provide an information configuration device applied at a receiving end, the device comprising:

[0017] The capability reporting information is sent to the transmitting end. The capability reporting information includes period indication information, which is used to indicate the shortest antenna characteristic switching period supported by the receiving end. The capability reporting information is used to configure the target duration of the CP. The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive, where N is a positive integer.

[0018] Fifthly, embodiments of this application provide an electronic device, including a transceiver and a processor.

[0019] The processor is used for:

[0020] Receive capability reporting information from the receiving end, the capability reporting information including period indication information, the period indication information being used to indicate the shortest antenna characteristic switching period supported by the receiving end;

[0021] Based on the reported capability information, determine the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive;

[0022] Based on the shortest antenna characteristic switching period and the number of parallel transmission streams, configure the target duration of the cyclic prefix (CP). The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams, where N is a positive integer.

[0023] Sixthly, embodiments of this application provide an electronic device, including a transceiver and a processor.

[0024] The processor is used for:

[0025] The capability reporting information is sent to the transmitting end. The capability reporting information includes period indication information, which is used to indicate the shortest antenna characteristic switching period supported by the receiving end. The capability reporting information is used to configure the target duration of the CP. The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive, where N is a positive integer.

[0026] In a seventh aspect, embodiments of this application provide an electronic device, including: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the method described in the first or second aspect above.

[0027] Eighthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the method described in the first or second aspect above.

[0028] Ninthly, embodiments of this application provide a computer program product, including computer instructions, which, when executed by a processor, implement the steps of the method described above.

[0029] In this embodiment, the transmitting end can receive capability reporting information sent by the receiving end. Based on this capability reporting information, the transmitting end can determine the number of parallel transmission streams that each RF channel of the receiving end needs to receive. Furthermore, based on the shortest antenna characteristic switching period indicated by the periodicity indication information in the capability reporting information, and the number of parallel transmission streams that each RF channel of the receiving end needs to receive, the transmitting end can configure the target duration of the cyclic prefix (CP) to be added before the OFDM symbol. By configuring the CP duration using the information configuration method of this embodiment, not only can the number of parallel transmission streams that each RF channel of the receiving end needs to receive be determined based on the capability reporting information sent by the receiving end, but the duration of the CP can also be configured based on the shortest antenna characteristic switching period supported by the receiving end and the determined number of parallel transmission streams. This ensures that the configured target duration of the CP satisfies the positive integer multiple relationship between the product of the shortest antenna characteristic switching period and the number of parallel transmission streams, thereby ensuring the consistency of the equivalent channel corresponding to different OFDM symbols, reducing transmission failures, and improving transmission performance. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of signal reception and upsampling using different antenna characteristic patterns provided in the embodiments of this application;

[0032] Figure 2 This is a schematic diagram of signal reception using different antenna characteristic patterns provided in the embodiments of this application;

[0033] Figure 3 This is one of the flowcharts of an information configuration method provided in the embodiments of this application;

[0034] Figure 4 This is a second flowchart of an information configuration method provided in an embodiment of this application;

[0035] Figure 5 This is a schematic diagram of a cycle prefix duration configuration provided in an embodiment of this application;

[0036] Figure 6This is one of the structural schematic diagrams of an information configuration device provided in the embodiments of this application;

[0037] Figure 7 This is one of the structural schematic diagrams of an information configuration device provided in the embodiments of this application;

[0038] Figure 8 This is one of the structural schematic diagrams of an electronic device provided in the embodiments of this application;

[0039] Figure 9 This is a second schematic diagram of the structure of an electronic device provided in the embodiments of this application. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] Introduction to related technologies:

[0042] For MIMO systems, the number of parallel data streams they can support is limited by the number of physical radio frequency channels at the transmitting and receiving ends, satisfying the following relationship:

[0043]

[0044] Where: N s This indicates the number of data streams transmitted in parallel (i.e., the maximum number of parallel transmission streams). Indicates the number of radio frequency channels at the transmitting end. This indicates the number of radio frequency channels at the receiving end.

[0045] The relevant protocol specifies the number of sampling points for an OFDM symbol as follows:

[0046]

[0047] The number of sampling points for the cyclic prefix CP is:

[0048]

[0049] l represents the symbol number.

[0050] The correspondence between the number of sampling points and the duration is as follows:

[0051]

[0052] in, The duration (i.e., duration) of the OFDM symbol. T represents the duration corresponding to the cyclic prefix CP. In this embodiment, the initial duration of CP can be determined using this formula. s =1 / (Δf) ref ·N f,ref ),Δf ref =15·10 3 Hz and N f,ref =2048. μ is related to the subcarrier spacing Δf of the communication system, and can be determined based on the subcarrier spacing Δf using the formula Δf = 2. μ • 15 [kHz] is used to determine μ, for example, as shown in Table 1 below.

[0053] Table 1

[0054] μ Δf = 2 μ · 15 [kHz] ] > Cyclic prefix 0 15 Normal 1 30 Normal 2 60 Normal, Extended 3 120 Normal 4 240 Normal 5 480 Normal 6 960 Normal

[0055] For wireless channels, research has found that the number and angular distribution of multipath propagation are related to the actual propagation environment. It is generally believed that multipath propagation is relatively abundant in the mid-to-low frequency bands, as shown in the channel model parameters for various scenarios in relevant protocols. Therefore, there is still room for growth in the number of antennas at the transmitting or receiving end of MIMO systems in related technologies.

[0056] However, considering various practical limitations, such as cost, power consumption, and manufacturing complexity, the number of radio frequency channels at the transmitting or receiving end of a practical MIMO system is unlikely to increase in tandem with the number of antenna elements. Therefore, practical MIMO systems generally employ a hybrid digital-analog architecture. For example, in existing 5G New Radio (NR) equipment (e.g., commercial equipment), base stations typically have 64 radio frequency channels and either 192 or 25 antenna elements. Hybrid digital-analog architecture in terminals is also a technological development trend.

[0057] It should be noted that the performance of traditional mixed-signal MIMO systems is inferior to that of pure digital MIMO systems with the same number of antenna elements, each connected to a separate radio frequency channel. Therefore, traditional mixed-signal MIMO systems do not fully utilize space resources, and their performance has room for improvement.

[0058] To address the problems of traditional MIMO systems, a novel MIMO transmission scheme, known as Virtual MIMO, is proposed. In this scheme, the receiver can switch its antenna characteristic pattern multiple times within the duration of an OFDM symbol and perform oversampling, thereby enabling a greater number of data streams to be transmitted simultaneously (in parallel) than the number of physical radio frequency channels at the receiver. Virtual MIMO considers a MIMO communication system where the transmitter is equipped with… One radio frequency channel, the receiver is equipped with In this system, with N0 antenna elements connected to each receiving RF channel, the antenna elements connected to each RF channel can be considered as an antenna element array. During one OFDM symbol duration, the antenna element array connected to each receiving RF channel uses multiple different receiver antenna characteristic patterns for signal reception and upsampling, thus achieving a maximum number of transport streams that the system can support exceeding the number of receiving RF channels. The maximum number of transport streams satisfies the following relationship:

[0059]

[0060] in: This represents the total number of antenna elements at the receiving end; assuming... And N s It can be Divisible by integer, the antenna array connected to each receiving RF channel needs to be in The receiver switches sequentially through different antenna characteristic patterns, with the switching period T for the antenna characteristics. p The following relationship must be satisfied:

[0061]

[0062] Wherein: T s This indicates the sampling interval of the OFDM symbol before upsampling; m is a positive integer that can be preset according to actual needs or historical experience.

[0063] like Figure 1 The diagram illustrates signal reception using two different receiver antenna characteristic patterns within a sampling interval of an OFDM symbol. N s =2, m=1. The solid arrows represent the original sampling points of the OFDM symbol. The sampling points generated by upsampling at the receiving end include not only the original sampling points but also the sampling points represented by the dashed arrows.

[0064] However, the above scheme encounters some problems in aligning the antenna characteristic switching period with the OFDM symbol length (i.e., duration). If the antenna characteristic switching period does not match the OFDM symbol duration after adding the cyclic prefix (CP) (misalignment, i.e., not a positive integer multiple), it will result in different receiving antenna characteristic patterns for each OFDM symbol, directly leading to the failure of the virtual MIMO system transmission. For example, assuming the duration of the CP... Duration of the useful data portion of OFDM symbols They are respectively:

[0065]

[0066] Antenna characteristic switching period T p for:

[0067] T p =64T s ;

[0068] T s The sampling interval of an original OFDM symbol, due to Cannot be T p Divisibility occurs because the receiving antenna characteristics differ for different OFDM symbols, resulting in differences in the equivalent channels corresponding to the two symbols. This prevents proper digital precoding and correct signal decoding, leading to transmission failure and poor transmission performance. (See diagram below.) Figure 2 As shown. Figure 2 In the middle, T sym This indicates the length of an OFDM symbol.

[0069] To address the issues with the alignment of antenna characteristic switching period and OFDM symbol length in related technical solutions, this application proposes a method for comprehensively configuring antenna characteristic switching period and the number of transport streams. In this scheme, the mathematical relationships between the cyclic prefix length, useful data length (effective symbol length), antenna characteristic switching period, and the number of parallel transport streams are given. It is proven that the alignment of the antenna characteristic switching period with the OFDM symbol length can only be guaranteed when the cyclic prefix length and useful data length are positive integer multiples of the product of the antenna characteristic switching period and the number of data streams received by each receiving RF channel. When this condition is not met, the antenna characteristic switching period can be aligned with the OFDM symbol length by (1) reducing the antenna characteristic switching speed, or (2) reducing the number of transport streams.

[0070] While the proposed solutions can address the alignment issue between the antenna characteristic switching period and the OFDM symbol length, they also result in significant system performance degradation. If the method described in (1) is used to reduce the antenna characteristic switching speed, it introduces more severe inter-carrier interference (ICI). In virtual MIMO schemes, III is related to the antenna characteristic switching period. The slower the antenna characteristic switching speed, the more severe the III. Eliminating III is a new challenge, and implementing III elimination methods significantly increases algorithm complexity. Therefore, in practical systems, it is best to operate the antenna at the highest antenna speed supported by the hardware. If the method described in (2) is used to reduce the number of parallel transmission streams, it significantly reduces the system's spectral efficiency. The performance of the virtual MIMO system is underutilized.

[0071] Therefore, in response to the problems existing in the relevant solutions, this application proposes a novel antenna characteristic switching period design method and a cyclic prefix dynamic design method to achieve the consistency of the virtual MIMO equivalent channel without sacrificing system performance or increasing inter-carrier interference, thereby ensuring smooth data transmission and improving transmission performance.

[0072] See Figure 3 , Figure 3 This is a flowchart of an information configuration method provided in an embodiment of this application. It can be applied to a sending end, which can be a first terminal device or a first network device, etc. The network device can include, but is not limited to, a first base station, etc. Figure 3 As shown, the information configuration method provided in this embodiment includes the following steps:

[0073] Step 301: Receive capability reporting information from the receiver. The capability reporting information includes period indication information, which is used to indicate the shortest antenna characteristic switching period supported by the receiver.

[0074] The receiving end can be a second terminal device or a second network device, etc. The second network device can include, but is not limited to, a second base station.

[0075] It should be understood that antenna characteristics can be antenna characteristic patterns or antenna patterns used to receive signals. The receiving end can switch antenna characteristic patterns to receive signals. It can also be understood as beam switching in the beam formed by the antenna array (antenna vibrator) at the receiving end, that is, switching beams to receive signals. One antenna characteristic can correspond to one beam. Different antenna characteristics may have different receiving parameters (e.g., including but not limited to receiving range, receiving direction, receiving power, etc.). The antenna characteristic switching period can be understood as the time taken for the analog beam formed by the antenna array at the receiving end to switch from one beam to another, that is, the beam switching interval.

[0076] In addition, the antenna characteristic switching capability of the receiver is related to the receiver's own hardware. The shortest antenna characteristic switching period supported by the receiver is related to the receiver's own hardware capabilities. The receiver can send capability reporting information to the transmitter, which may include period indication information used to indicate the shortest antenna characteristic switching period supported by the receiver.

[0077] After receiving the period indication information, the transmitting end can determine the shortest antenna characteristic switching period supported by the receiving end based on the period indication information. For example, the transmitting end can maintain a correspondence, which includes multiple period indices and their corresponding shortest antenna characteristic switching periods. The shortest antenna characteristic switching period supported by the receiving end can be obtained by looking up the corresponding shortest antenna characteristic switching period in the correspondence based on the first period index.

[0078] Step 302: Based on the capability reporting information, determine the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive;

[0079] Step 303: Configure the target duration of the cyclic prefix (CP) based on the shortest antenna characteristic switching period and the number of parallel transmission streams. The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams, where N is a positive integer.

[0080] In the embodiments of this application, the duration can also be understood as the duration or length of time. It should be understood that the number of parallel transmission streams can refer to the number of data streams transmitted in parallel. The transmitting end can configure the number of parallel transmission streams for the receiving end, thus determining the number of parallel transmission streams that each RF channel of the receiving end needs to receive. Then, using the shortest antenna characteristic switching period supported by the receiving end and the number of parallel transmission streams, the target duration of the CP can be configured. Moreover, the configured target duration is a positive integer multiple of the product between the shortest antenna characteristic switching period and the number of parallel transmission streams. For example, the shortest antenna characteristic switching period is T... p The number of parallel transmission streams is N p The duration of the target is N. p T p The target duration of CP satisfies the relationship that it is a positive integer multiple of the product between the shortest antenna characteristic switching period and the number of parallel transmission streams. This ensures the consistency of antenna characteristics received by the receiver for each OFDM symbol within the same RF channel, and ensures the consistency of the equivalent channel corresponding to different OFDM symbols.

[0081] In this embodiment, the transmitting end can receive capability reporting information sent by the receiving end. Based on this capability reporting information, the transmitting end can determine the number of parallel transmission streams that each RF channel of the receiving end needs to receive. Furthermore, based on the shortest antenna characteristic switching period indicated by the periodicity indication information in the capability reporting information, and the number of parallel transmission streams that each RF channel of the receiving end needs to receive, the transmitting end can configure the target duration of the cyclic prefix (CP) to be added before the OFDM symbol. By configuring the CP duration using the information configuration method of this embodiment, not only can the number of parallel transmission streams that each RF channel of the receiving end needs to receive be determined based on the capability reporting information sent by the receiving end, but the duration of the CP can also be configured based on the shortest antenna characteristic switching period supported by the receiving end and the determined number of parallel transmission streams. This ensures that the configured target duration of the CP satisfies the positive integer multiple relationship between the product of the shortest antenna characteristic switching period and the number of parallel transmission streams, thereby ensuring the consistency of the equivalent channel corresponding to different OFDM symbols, reducing transmission failures, and improving transmission performance.

[0082] In some embodiments, the target duration of the cyclic prefix (CP) is configured based on the shortest antenna characteristic switching period and the number of parallel transport streams, including:

[0083] Get the initial duration of CP;

[0084] Calculate the product of the shortest antenna characteristic switching period and the number of parallel transmission streams;

[0085] If the initial duration is a non-positive integer multiple of the product, calculate the target value based on the initial duration and the product. The target value is the initial duration divided by the product and rounded up. The target value is a positive integer.

[0086] The product of the target value and the product is determined as the duration of the target.

[0087] In configuring the target duration of the CP, the initial duration of the CP can be determined first. It is then checked whether the initial duration is a positive integer multiple of the product of the shortest antenna characteristic switching period and the number of parallel transmission streams. If it is a positive integer multiple, the smallest positive integer (i.e., the target value) of the first parameter that satisfies the following condition can be found: the product of the first parameter and this product is greater than or equal to the initial duration. The product of the target value and this product is then used as the target duration, thus configuring the duration of the CP. It should be noted that the initial duration of the CP obtained in this embodiment can be obtained through relevant technologies or protocols, and is not specifically limited.

[0088] When the initial duration of the CP is not a positive integer multiple of the product (i.e., the initial duration of the CP is a non-positive integer multiple of the product), it is easy for the receiving antenna characteristic patterns of each OFDM symbol in a radio frequency channel to be different, leading to transmission failure of the virtual MIMO system. That is, with the above scheme, when the initial duration of the CP is not a positive integer multiple of the product between the shortest antenna characteristic switching period and the number of parallel transmission streams, the transmission performance is likely to be poor. In this implementation, when the initial duration is not a positive integer multiple of the product, a target value is calculated based on the initial duration and the product, and the target value is a positive integer. Then, the initial duration is adjusted to obtain the target duration. That is, the product between the target value and the product is determined as the target duration. In other words, the initial duration is extended to obtain the target duration. The configured target duration is a positive integer multiple of the product between the shortest antenna characteristic switching period and the number of parallel transmission streams. This improves the consistency of the antenna characteristics of each OFDM symbol received by the receiver in the same radio frequency channel, reduces the transmission failure situation, and improves the transmission performance.

[0089] In some embodiments, the capability reporting information may also include the number of radio frequency channels at the receiver and the number of antenna elements connected to each radio frequency channel at the receiver;

[0090] Based on the capability reporting information, determine the number of parallel transmission streams that each RF channel at the receiving end needs to receive, including:

[0091] The maximum number of parallel transmission streams for the radio frequency channels at the receiving end is determined based on the number of radio frequency channels at the transmitting end, the number of radio frequency channels at the receiving end, and the number of antenna elements connected to each radio frequency channel at the receiving end.

[0092] Divide the maximum number of parallel transport streams by the number of RF channels at the receiver to obtain the number of parallel transport streams that each RF channel at the receiver needs to receive.

[0093] In this embodiment, the maximum number of parallel transport streams at the receiver is related not only to the number of RF channels at the transmitter and the receiver, but also to the number of antenna elements connected to each RF channel at the receiver. The maximum number of parallel transport streams at the receiver can be determined based on the number of RF channels at the transmitter, the number of RF channels at the receiver, and the number of antenna elements connected to each RF channel at the receiver. Then, the maximum number of parallel transport streams is divided by the number of RF channels at the receiver to determine the number of parallel transport streams that each RF channel at the receiver needs to receive. This is used to configure the target duration of the CP (Concurrent Processing) later. For example, if the number of RF channels at the receiver is... The maximum number of parallel transmission streams is N s Then, the number of parallel transport streams that each RF channel at the receiving end needs to receive.

[0094] In some embodiments, dividing the maximum number of parallel transmission streams by the number of radio frequency channels at the receiver to obtain the number of parallel transmission streams that each radio frequency channel at the receiver needs to receive may include: when the maximum number of parallel transmission streams is greater than the number of radio frequency channels at the receiver, dividing the maximum number of parallel transmission streams by the number of radio frequency channels at the receiver to obtain the number of parallel transmission streams that each radio frequency channel at the receiver needs to receive.

[0095] In some embodiments, the maximum number of parallel transmission streams is a value selected within a range less than or equal to the minimum value that is divisible by the number of RF channels at the receiver. The minimum value is the minimum of the number of RF channels at the transmitter and the total number of antenna elements at the receiver. The total number of antenna elements is the product of the number of RF channels at the receiver and the number of antenna elements connected to each RF channel at the receiver.

[0096] It should be understood that for each RF channel at the receiving end, the number of antenna elements connected to that RF channel is the same as the number of antenna elements connected to that RF channel. For example, each RF channel at the receiving end may have the same number of antenna elements connected; for instance, each RF channel may connect N0 (a positive integer) antenna elements, and the number of antenna elements connected to each RF channel is N0. The maximum number of parallel transport streams N is determined. s The following relationship must be satisfied:

[0097]

[0098] The number of radio frequency channels at the transmitting end. This indicates the total number of antenna elements at the receiving end. N0, N represents the number of radio frequency channels at the receiving end. s It can be less than or equal to The value is selected within the range that is divisible by the number of radio frequency channels at the receiving end. For example, it can be randomly selected or selected based on the hardware configuration of the receiving end, etc., without specific limitations.

[0099] In some embodiments, the period indication information may include the shortest antenna characteristic switching period supported by the receiver. This allows the transmitter to obtain the shortest antenna characteristic switching period supported by the receiver after acquiring the capability reporting information. Alternatively, the period indication information may include a period index corresponding to the shortest antenna characteristic switching period supported by the receiver. This allows the transmitter to obtain the shortest antenna characteristic switching period supported by the receiver from a correspondence based on the period index. The correspondence includes multiple period indices and their corresponding shortest antenna characteristic switching periods. In other words, the shortest antenna characteristic switching period supported by the receiver can be obtained based on the capability reporting information. This allows for the subsequent configuration of the target duration of the CP (Concurrent Passive Component) using the shortest antenna characteristic switching period supported by the receiver. The configured target duration of the CP must satisfy a positive integer multiple of the product between the shortest antenna characteristic switching period and the number of parallel transmission streams. This ensures the consistency of the equivalent channel corresponding to different OFDM symbols, thereby reducing transmission failures and improving transmission performance.

[0100] See Figure 4 , Figure 4 This is a flowchart of an information configuration method provided in an embodiment of this application, applied to a receiving end, such as... Figure 4 As shown, the information configuration method provided in this embodiment includes the following steps:

[0101] Step 401: Send capability reporting information to the transmitter. The capability reporting information includes period indication information, which is used to indicate the shortest antenna characteristic switching period supported by the receiver. The capability reporting information is used to configure the target duration of the CP. The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams that each radio frequency channel of the receiver needs to receive, where N is a positive integer.

[0102] In some embodiments, the period indication information includes the period index corresponding to the shortest antenna characteristic switching period supported by the receiver. The receiver maintains a corresponding relationship, which includes multiple period indices and their corresponding shortest antenna characteristic switching periods.

[0103] Before sending capability reporting information to the sending end, the process also includes:

[0104] Based on the hardware capabilities of the receiver, determine the shortest antenna characteristic switching period supported by the receiver.

[0105] Find the period index corresponding to the shortest antenna feature switching period supported by the receiver in the correspondence.

[0106] In some embodiments, the capability reporting information may also include the number of radio frequency channels at the receiver and the number of antenna elements connected to each radio frequency channel at the receiver;

[0107] The number of radio frequency channels at the receiver and the number of antenna elements connected to each radio frequency channel at the receiver are used to determine the maximum number of parallel transmission streams at the receiver and the number of parallel transmission streams that each radio frequency channel at the receiver needs to receive.

[0108] The process of the above method will be specifically described below with some specific embodiments.

[0109] The embodiments of this application consider a virtual MIMO communication system, wherein the transmitting end is equipped with One radio frequency channel, the receiver is equipped with There are N radio frequency channels, and each receiving radio frequency channel is connected to N0 antenna elements. If the transmitting end simultaneously transmits N... s Each stream of independent OFDM data requires an antenna array design connected to each RF channel. A variety of receiving antenna patterns are defined. Within one OFDM symbol period, the receiving antenna characteristic patterns need to be switched sequentially among these patterns, with the switching period satisfying the following:

[0110]

[0111] Wherein: T s The sampling interval of a raw OFDM symbol is denoted by m. m is a configurable positive integer related to the OFDM symbol duration and hardware performance during receiver antenna characteristic switching. By switching the receiver antenna characteristic pattern and upsampling, the receiver can create virtual RF channels, achieving a transport stream number greater than the number of receiver RF channels.

[0112] To ensure the normal operation of the virtual MIMO system, the existing system needs to be enhanced.

[0113] Overall, this scheme, under the condition of limiting the switching period of various antenna characteristics, dynamically configures the cyclic prefix length for different numbers of parallel transmission streams, ensuring the consistency of the equivalent channel for different OFDM symbols.

[0114] For example, including:

[0115] The system specifies several antenna characteristic switching period capability requirements (shortest antenna characteristic switching period). The receiving end, based on its own hardware capabilities, reports the period index of the shortest antenna characteristic switching period it can achieve. Additionally, it can report the number of RF channels at the receiving end and the number of antenna elements connected to each RF channel.

[0116] The transmitter configures an appropriate number of parallel transmission streams for the receiver based on the receiver's capabilities. It dynamically configures the cyclic prefix length based on the period index of the antenna characteristic switching period reported by the receiver and informs the receiver accordingly.

[0117] Regarding the requirements and reporting of switching cycle capabilities:

[0118] Several antenna characteristic switching cycle capability requirements need to be specified, with each requirement representing a usable antenna characteristic switching cycle applicable to terminals with different hardware capabilities. The antenna characteristic switching cycle refers to the time required for the analog beam formed by the receiver's antenna array to switch from one beam to another. For example, as an example, six antenna characteristic switching cycle capability requirements can be specified, as shown in Table 2.

[0119] Table 2

[0120]

[0121] The receiver needs to report to the transmitter the index of the shortest antenna characteristic switching cycle level that its hardware can support. In addition, it can also report the number of radio frequency channels at the receiver and the number of antenna elements connected to each radio frequency channel.

[0122] Because the useful data portion of OFDM symbols typically has 2 [units / parts] before upsampling. n There are n sampling points, where n is a positive integer, for example, 2. 11 =2048 sampling points, so one method to specify the switching period capability requirements for antenna characteristics at different levels is: the sampling point interval T of the previous OFDM symbol. s As a unit, according to The antenna characteristic switching period capability requirements are defined for different ranges, where n1 is an integer. For example, according to n1 = -2, 0, 2, 4, 5, 6, six ranges of antenna characteristic switching period capability requirements are defined, as shown in Table 3.

[0123] Table 3

[0124]

[0125] In addition, the switching cycle capability requirements for several antenna characteristics can be specified in seconds.

[0126] For dynamic cyclic prefix configuration:

[0127] The sending end configures the number of transport streams for the receiving end. Based on the information reported by the receiving end and the number of transport streams, the sending end dynamically configures the cyclic prefix length to meet the requirements of the dynamically configured cyclic prefix length. It is the antenna characteristic switching period and N p Integer multiples of the product, i.e. Ensure the consistency of the equivalent channel.

[0128] The maximum number of parallel transmission streams satisfies the following relationship:

[0129]

[0130] After configuring the maximum number of parallel transmission streams, the transmitting end needs to compare the relationship between the maximum number of parallel transmission streams and the number of RF channels at the receiving end, such as... Figure 5 As shown.

[0131] If the maximum number of parallel transmission streams is less than or equal to the number of radio frequency channels at the receiver, then there is no need to dynamically configure the cyclic prefix length, and the receiver can simply use the traditional MIMO reception method.

[0132] If the maximum number of parallel transmission streams is greater than the number of RF channels at the receiving end, it is generally stipulated that the maximum number of parallel transmission streams is an integer multiple of the number of RF channels at the receiving end. The number of data streams that each receiving RF channel needs to receive is then calculated. In practical systems, N p It is generally equal to 2, but theoretically, N p It can take any positive integer. In this case, the transmitter needs to dynamically configure the cyclic prefix length to meet the requirements of the dynamically configured cyclic prefix length. It is the antenna characteristic switching period and N p A positive integer multiple of the product, i.e. Where k1 is a positive integer. There are two cases: 1) If the initial duration and the product satisfy a positive integer multiple relationship, the original loop prefix length (i.e., the initial duration) can remain unchanged, and the original loop prefix length can be used as the target duration of the loop prefix. 2) If the positive integer multiple relationship is not satisfied, the dynamically configured loop prefix length... It is necessary to determine the length of the original loop prefix. This is obtained by extending the length. A calculation... The method is to find the smallest positive integer k. * ,make The dynamically configured cyclic prefix length k* The following formula can be used to calculate

[0133]

[0134] in This indicates rounding up. Additionally, it should be noted that the effective OFDM symbol length in this embodiment is a positive integer multiple of the product of the antenna characteristic switching period and the number of parallel transmission streams for each receive RF channel.

[0135] The following specific embodiments illustrate the solution of this application:

[0136] Example 1: Considering μ = 0, Normal CP,

[0137] Consider a virtual MIMO communication system where the transmitter has two radio frequency channels, each connected to one antenna element. The receiver has one radio frequency channel, and this receiver channel is connected to two antenna elements.

[0138] The switching cycle capability requirements for six antenna characteristic levels are specified, as shown in Table 4.

[0139] Table 4

[0140]

[0141] The shortest antenna switching period achievable by the receiver hardware is T. s This refers to index 2. The receiving end needs to report its capabilities to the transmitting end, namely, one radio frequency channel, two antenna elements, and the antenna characteristic switching cycle capability requirement index 2.

[0142] The transmitter can equip the receiver with N s =2 streams of data, calculation yields Depend on

[0143]

[0144] And N p T p =2T s ,so It is N p T p It is an integer multiple of the original cyclic prefix length. No change is needed to the original cyclic prefix length. The receiver uses two analog receive beams to receive both streams of transmitted data, achieving virtual MIMO transmission.

[0145] Example 2: Considering μ = 0, Normal CP,

[0146] Consider a virtual MIMO communication system where the transmitter has four radio frequency channels, each connected to one antenna element. The receiver has two radio frequency channels, each connected to two antenna elements.

[0147] The switching cycle capability requirements for six antenna characteristic levels are specified in Table 5.

[0148] Table 5

[0149]

[0150] The shortest antenna switching period achievable by the receiver hardware is 16T. s This corresponds to index 4. The receiving end needs to report its capabilities to the transmitting end, namely, two radio frequency channels, two antenna elements for each receiving radio frequency channel, and the antenna characteristic switching cycle capability requirements (index 4).

[0151] The transmitter can equip the receiver with N s =4 streams of data, calculation yields because

[0152]

[0153] And N p T p =32T s ,so Not N p T p Multiples of the original loop prefix are required. The loop prefix length needs to be dynamically configured, increasing the original loop prefix. Calculation...

[0154]

[0155] The length of the extended cyclic prefix can be obtained as follows:

[0156]

[0157] Therefore, the dynamically configured cyclic prefix requires 160-144=16 additional sampling points compared to the original cyclic prefix. With this configuration, the antenna array connected to each receive RF channel uses two different analog receive beams for signal reception, and the two receive RF channels jointly receive four streams of data, completing virtual MIMO transmission.

[0158] This application provides a design method for antenna characteristic switching period capability requirements corresponding to MIMO transmission schemes. Using the original sampling point interval as a unit, several levels of antenna characteristic switching period capability requirements are specified according to powers of 2.

[0159] The embodiments of this application provide a dynamic cyclic prefix configuration method for MIMO transmission schemes. When the original cyclic prefix length is not an integer multiple of the product of the antenna characteristic switching period and the number of data streams that each receiving RF channel needs to receive, the original cyclic prefix is ​​lengthened through dynamic configuration so that the dynamically configured cyclic prefix length satisfies the integer multiple relationship, ensuring the normal operation of the virtual MIMO system.

[0160] Compared with traditional methods, this scheme proposes a novel antenna characteristic switching period design method and a cyclic prefix dynamic configuration method. Without sacrificing system performance or increasing inter-carrier interference, it achieves the consistency of the virtual MIMO equivalent channel, thereby ensuring smooth data transmission.

[0161] like Figure 6 As shown, Figure 6 This is a schematic diagram of the structure of an information configuration device provided in an embodiment of this application, which can be applied to a sending end, such as... Figure 6 As shown, the information configuration device 600 includes:

[0162] The first receiving module 601 is used to receive capability reporting information from the receiving end. The capability reporting information includes period indication information, which is used to indicate the shortest antenna characteristic switching period supported by the receiving end.

[0163] The first determining module 602 is used to determine the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive based on the capability reporting information.

[0164] Configuration module 603 is used to configure the target duration of the cyclic prefix CP based on the shortest antenna characteristic switching period and the number of parallel transmission streams. The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams, where N is a positive integer.

[0165] In some embodiments, the configuration module 603 includes:

[0166] The acquisition unit is used to acquire the initial duration of the CP.

[0167] The first computing unit is used to calculate the product between the shortest antenna characteristic switching period and the number of parallel transmission streams;

[0168] The second calculation unit is used to calculate the target value based on the initial duration and the product when the initial duration is a non-positive integer multiple of the product. The target value is the result of dividing the initial duration by the product and rounding it up. The target value is a positive integer.

[0169] The first determining unit is used to determine the product between the target value and the product as the target duration.

[0170] In some embodiments, the capability reporting information may also include the number of radio frequency channels at the receiver and the number of antenna elements connected to each radio frequency channel at the receiver;

[0171] The first determining module 602 includes:

[0172] The second determining unit is used to determine the maximum number of parallel transmission streams at the receiving end based on the number of radio frequency channels at the transmitting end, the number of radio frequency channels at the receiving end, and the number of antenna elements connected to each radio frequency channel at the receiving end.

[0173] The third determining unit is used to divide the maximum number of parallel transmission streams by the number of radio frequency channels at the receiving end to obtain the number of parallel transmission streams that each radio frequency channel at the receiving end needs to receive.

[0174] In some embodiments, the maximum number of parallel transmission streams is a value selected within a range less than or equal to the minimum value that is divisible by the number of RF channels at the receiver. The minimum value is the minimum of the number of RF channels at the transmitter and the total number of antenna elements at the receiver. The total number of antenna elements is the product of the number of RF channels at the receiver and the number of antenna elements connected to each RF channel at the receiver.

[0175] In some embodiments, the period indication information includes the period index corresponding to the shortest antenna feature switching period supported by the receiver;

[0176] The device also includes:

[0177] The period determination module is used to obtain the shortest antenna characteristic switching period supported by the receiver from the correspondence based on the period index. The correspondence includes multiple period indices and their corresponding shortest antenna characteristic switching periods.

[0178] The information configuration device 600 provided in this embodiment can implement each process of the above-described information configuration method applied to the sending end. The technical features are one-to-one and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0179] See Figure 7 , Figure 7 This is a schematic diagram of the structure of an information configuration device provided in an embodiment of this application, which can be applied to a receiving end, such as... Figure 7 As shown, the information configuration device 700 includes:

[0180] The first transmitting module 701 is used to transmit capability reporting information to the transmitting end. The capability reporting information includes period indication information, which is used to indicate the shortest antenna characteristic switching period supported by the receiving end. The capability reporting information is used to configure the target duration of the CP. The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive, where N is a positive integer.

[0181] In some embodiments, the period indication information includes the period index corresponding to the shortest antenna characteristic switching period supported by the receiver. The receiver maintains a corresponding relationship, which includes multiple period indices and their corresponding shortest antenna characteristic switching periods.

[0182] The information configuration device 700 also includes:

[0183] The second determining module is used to determine the shortest antenna characteristic switching period supported by the receiving end based on the hardware capabilities of the receiving end before the first transmitting module 701 transmits capability reporting information to the transmitting end.

[0184] The lookup module is used to find the period index corresponding to the shortest antenna characteristic switching period supported by the receiver in the correspondence.

[0185] In some embodiments, the capability reporting information may also include the number of radio frequency channels at the receiver and the number of antenna elements connected to each radio frequency channel at the receiver;

[0186] The number of radio frequency channels at the receiver and the number of antenna elements connected to each radio frequency channel at the receiver are used to determine the maximum number of parallel transmission streams at the receiver and the number of parallel transmission streams that each radio frequency channel at the receiver needs to receive.

[0187] The information configuration device 700 provided in this embodiment can implement the various processes of the above-described information configuration method applied to the receiving end. The technical features are one-to-one and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0188] This application also provides an electronic device, including: a processor, a memory, and a program stored in the memory and executable on the processor. When the program is executed by the processor, it implements the various processes of the above-described information configuration method embodiment applied to the sending end and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0189] For details, see Figure 8 This application also provides an electronic device (which may be a transmitter), including a bus 801, a transceiver 802, an antenna 803, a bus interface 804, a processor 805, and a memory 806.

[0190] The processor 805 is used for:

[0191] Receive capability reporting information from the receiving end. The capability reporting information includes period indication information, which is used to indicate the shortest antenna characteristic switching period supported by the receiving end.

[0192] Based on the capability reporting information, determine the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive;

[0193] Based on the shortest antenna characteristic switching period and the number of parallel transmission streams, configure the target duration of the cyclic prefix (CP). The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams, where N is a positive integer.

[0194] In some embodiments, the processor 805 is configured to:

[0195] Get the initial duration of CP;

[0196] Calculate the product of the shortest antenna characteristic switching period and the number of parallel transmission streams;

[0197] If the initial duration is a non-positive integer multiple of the product, calculate the target value based on the initial duration and the product. The target value is the initial duration divided by the product and rounded up. The target value is a positive integer.

[0198] The product of the target value and the product is determined as the duration of the target.

[0199] In some embodiments, the capability reporting information may also include the number of radio frequency channels at the receiver and the number of antenna elements connected to each radio frequency channel at the receiver;

[0200] Processor 805, used for:

[0201] The maximum number of parallel transmission streams at the receiver is determined based on the number of radio frequency channels at the transmitter, the number of radio frequency channels at the receiver, and the number of antenna elements connected to each radio frequency channel at the receiver.

[0202] Divide the maximum number of parallel transport streams by the number of RF channels at the receiver to obtain the number of parallel transport streams that each RF channel at the receiver needs to receive.

[0203] In some embodiments, the maximum number of parallel transmission streams is a value selected within a range less than or equal to the minimum value that is divisible by the number of RF channels at the receiver. The minimum value is the minimum of the number of RF channels at the transmitter and the total number of antenna elements at the receiver. The total number of antenna elements is the product of the number of RF channels at the receiver and the number of antenna elements connected to each RF channel at the receiver.

[0204] In some embodiments, the period indication information includes the period index corresponding to the shortest antenna feature switching period supported by the receiver;

[0205] The 805 processor is also used for:

[0206] Based on the period index, the shortest antenna characteristic switching period supported by the receiver is obtained from the correspondence. The correspondence includes multiple period indices and their corresponding shortest antenna characteristic switching periods.

[0207] exist Figure 8 In this document, a bus architecture (represented by bus 801) is used. Bus 801 can include any number of interconnected buses and bridges, linking various circuits including one or more processors represented by processor 805 and memory represented by memory 806. Bus 801 can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 804 provides an interface between bus 801 and transceiver 802. Transceiver 802 can be a single element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by processor 805 is transmitted over a wireless medium via antenna 803, which further receives data and transmits data to processor 805.

[0208] The processor 805 manages the bus 801 and handles general processing, and also provides various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. The memory 806 can be used to store data used by the processor 805 during operation.

[0209] Optionally, the processor 805 can be a CPU, ASIC, FPGA, or CPLD.

[0210] The processing of the electronic device provided in this embodiment can realize the various processes of the above-described information configuration method applied to the sending end, with one-to-one correspondence of technical features and the same technical effect. To avoid repetition, it will not be described again here.

[0211] This application also provides a computer-readable storage medium storing a computer program. When executed by a processor, this computer program implements the various processes described in the above-described embodiments of the information configuration method applied to the sending end, and achieves the same technical effects. To avoid repetition, it will not be described again here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0212] This application also provides an electronic device, including: a processor, a memory, and a program stored in the memory and executable on the processor. When the program is executed by the processor, it implements the various processes of the above-described information configuration method embodiment applied to the receiving end and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0213] For details, see Figure 9As shown in the figure, this application embodiment also provides an electronic device (which may be a receiver), including a bus 901, a transceiver 902, an antenna 903, a bus interface 904, a processor 905, and a memory 906.

[0214] The processor 905 is used for:

[0215] The capability reporting information is sent to the transmitting end. The capability reporting information includes period indication information, which is used to indicate the shortest antenna characteristic switching period supported by the receiving end. The capability reporting information is used to configure the target duration of the CP. The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive, where N is a positive integer.

[0216] In some embodiments, the period indication information includes the period index corresponding to the shortest antenna characteristic switching period supported by the receiver. The receiver maintains a corresponding relationship, which includes multiple period indices and their corresponding shortest antenna characteristic switching periods.

[0217] The 905 processor is also used for:

[0218] Based on the hardware capabilities of the receiver, determine the shortest antenna characteristic switching period supported by the receiver.

[0219] Find the period index corresponding to the shortest antenna feature switching period supported by the receiver in the correspondence.

[0220] In some embodiments, the capability reporting information may also include the number of radio frequency channels at the receiver and the number of antenna elements connected to each radio frequency channel at the receiver.

[0221] exist Figure 9 In this document, a bus architecture (represented by bus 901) is used. Bus 901 can include any number of interconnected buses and bridges, linking various circuits including one or more processors represented by processor 905 and memory represented by memory 906. Bus 901 can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 904 provides an interface between bus 901 and transceiver 902. Transceiver 902 can be a single element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by processor 905 is transmitted over a wireless medium via antenna 903, which further receives data and transmits it to processor 905.

[0222] Processor 905 manages bus 901 and general processing, and also provides various functions, including timing, peripheral interface, voltage regulation, power management, and other control functions. Memory 906 can be used to store data used by processor 905 during operation.

[0223] Optionally, the processor 905 can be a CPU, ASIC, FPGA, or CPLD.

[0224] The processing of the electronic device provided in this embodiment can realize the various processes of the various embodiments of the information configuration method applied to the receiving end described above. The technical features are one-to-one and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0225] This application also provides a computer-readable storage medium storing a computer program. When executed by a processor, this computer program implements the various processes of the above-described information configuration method embodiments applied to the receiving end, and achieves the same technical effects. To avoid repetition, it will not be described again here. The computer-readable storage medium may be, for example, ROM, RAM, magnetic disk, or optical disk.

[0226] This application provides a computer program product, including computer instructions. When the computer instructions are executed by a processor, they implement the various processes of the method described in the embodiment. The technical features are one-to-one and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0227] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0228] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or first network device, etc.) to execute the methods of the various embodiments of this application.

[0229] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An information configuration method, characterized in that, Applied to the sending end, the method includes: Receive capability reporting information from the receiving end, the capability reporting information including period indication information, the period indication information being used to indicate the shortest antenna characteristic switching period supported by the receiving end; Based on the reported capability information, determine the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive; Based on the shortest antenna characteristic switching period and the number of parallel transmission streams, configure the target duration of the cyclic prefix (CP). The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams, where N is a positive integer.

2. The method according to claim 1, characterized in that, The step of configuring the target duration of the cyclic prefix (CP) based on the shortest antenna characteristic switching period and the number of parallel transmission streams includes: Obtain the initial duration of the CP; Calculate the product between the shortest antenna characteristic switching period and the number of parallel transmission streams; If the initial duration is a non-positive integer multiple of the product, a target value is calculated based on the initial duration and the product. The target value is the result of dividing the initial duration by the product and rounding it up. The target value is a positive integer. The product between the target value and the product is determined as the target duration.

3. The method according to claim 1, characterized in that, The capability reporting information also includes the number of radio frequency channels of the receiving end and the number of antenna elements connected to each radio frequency channel of the receiving end; The determination of the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive based on the reported capability information includes: The maximum number of parallel transmission streams at the receiving end is determined based on the number of radio frequency channels at the transmitting end, the number of radio frequency channels at the receiving end, and the number of antenna elements connected to each radio frequency channel at the receiving end. Divide the maximum number of parallel transport streams by the number of radio frequency channels at the receiving end to obtain the number of parallel transport streams that each radio frequency channel at the receiving end needs to receive.

4. The method according to claim 3, characterized in that, The maximum number of parallel transmission streams is a value selected within a range less than or equal to the minimum value that is divisible by the number of radio frequency channels at the receiving end. The minimum value is the minimum of the number of radio frequency channels at the transmitting end and the total number of antenna elements at the receiving end. The total number of antenna elements is the product of the number of radio frequency channels at the receiving end and the number of antenna elements connected to each radio frequency channel at the receiving end.

5. The method according to claim 3, characterized in that, The period indication information includes the period index corresponding to the shortest antenna feature switching period supported by the receiver. After receiving the capability reporting information from the receiving end, the method further includes: Based on the period index, the shortest antenna characteristic switching period supported by the receiver is obtained from the correspondence. The correspondence includes multiple period indices and their corresponding shortest antenna characteristic switching periods.

6. An information configuration method, characterized in that, Applied to the receiving end, the method includes: The capability reporting information is sent to the transmitting end. The capability reporting information includes period indication information, which is used to indicate the shortest antenna characteristic switching period supported by the receiving end. The capability reporting information is used to configure the target duration of the CP. The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive, where N is a positive integer.

7. The method according to claim 6, characterized in that, The period indication information includes the period index corresponding to the shortest antenna characteristic switching period supported by the receiver. The receiver maintains a corresponding relationship, which includes multiple period indices and their corresponding shortest antenna characteristic switching periods. Before sending the capability reporting information to the sending end, the process also includes: Based on the hardware capabilities of the receiver, determine the shortest antenna characteristic switching period supported by the receiver. Find the period index corresponding to the shortest antenna characteristic switching period supported by the receiver in the correspondence.

8. The method according to claim 6, characterized in that, The capability reporting information also includes the number of radio frequency channels of the receiving end and the number of antenna elements connected to each radio frequency channel of the receiving end; The number of radio frequency channels at the receiving end and the number of antenna elements connected to each radio frequency channel at the receiving end are used to determine the maximum number of parallel transmission streams at the receiving end and the number of parallel transmission streams that each radio frequency channel at the receiving end needs to receive.

9. An information configuration device, characterized in that, Applied to the transmitting end, the device includes: The first receiving module is configured to receive capability reporting information from the receiving end, the capability reporting information including period indication information, the period indication information being used to indicate the shortest antenna characteristic switching period supported by the receiving end; The first determining module is used to determine the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive based on the capability reporting information. The configuration module is used to configure the target duration of the cyclic prefix (CP) based on the shortest antenna characteristic switching period and the number of parallel transmission streams. The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams, where N is a positive integer.

10. An information configuration device, characterized in that, Applied to the receiving end, the device includes: The first transmitting module is used to transmit capability reporting information to the transmitting end. The capability reporting information includes period indication information, which is used to indicate the shortest antenna characteristic switching period supported by the receiving end. The capability reporting information is used to configure the target duration of the CP. The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive, where N is a positive integer.

11. An electronic device, characterized in that, Including transceivers and processors, The processor is used for: Receive capability reporting information from the receiving end, the capability reporting information including period indication information, the period indication information being used to indicate the shortest antenna characteristic switching period supported by the receiving end; Based on the reported capability information, determine the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive; Based on the shortest antenna characteristic switching period and the number of parallel transmission streams, configure the target duration of the cyclic prefix (CP). The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams, where N is a positive integer.

12. An electronic device, characterized in that, Including transceivers and processors, The processor is used for: The capability reporting information is sent to the transmitting end. The capability reporting information includes period indication information, which is used to indicate the shortest antenna characteristic switching period supported by the receiving end. The capability reporting information is used to configure the target duration of the CP. The target duration of the CP is N times the product of the shortest antenna characteristic switching period and the number of parallel transmission streams that each radio frequency channel of the receiving end needs to receive, where N is a positive integer.

13. An electronic device, characterized in that, include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the method as claimed in any one of claims 1 to 5, or implements the steps of the method as claimed in any one of claims 6 to 8.

14. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the method as described in any one of claims 1 to 5, or implements the steps of the method as described in any one of claims 6 to 8.

15. A computer program product, characterized in that, It includes computer instructions that, when executed by a processor, implement the steps of the method as described in any one of claims 1-5, or the steps of the method as described in any one of claims 6 to 8.

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