Layer information feedback method, receiving method, device, communication node and medium

Abstract

The present application provides a layer information feedback method, receiving method, device, communication node and medium. The method receives configuration information of a first communication node; determines the layer information of the first communication node according to the configuration information; and feeds back the layer information to the first communication node.

Description

Technical Field

[0001] The present application relates to a wireless communication network, for example, to a layer information feedback method, receiving method, device, communication node and medium. Background Art

[0002] Wireless communication technology has a huge impact on production and life. With the development of society and technology, the amount of wireless communication data is increasing, and the requirements for communication efficiency are also getting higher and higher. In the process of wireless communication with other communication nodes, due to the unknown data transmission performance of the current communication node, there are problems such as unstable data transmission signals, poor reception quality, and high latency, resulting in low communication efficiency and poor reliability. Summary of the invention

[0003] The present application provides a layer information feedback method, receiving method, device, communication node and medium, which improve communication efficiency and reliability by feeding back layer information.

[0004] The present application provides a layer information feedback method, including:

[0005] receiving configuration information of a first communication node;

[0006] Determine layer information of the first communication node according to the configuration information;

[0007] The layer information is fed back to the first communication node.

[0008] The embodiment of the present application also provides a method for receiving layer information, including:

[0009] transmitting configuration information to the second communication node;

[0010] Receive layer information fed back by the second communication node, the layer information is determined by the second communication node according to the configuration information

[0011] The embodiment of the present application further provides a layer information feedback device, including:

[0012] A first receiving module, configured to receive configuration information of a first communication node;

[0013] a measurement module, configured to determine layer information of the first communication node according to the configuration information;

[0014] A feedback module is configured to feed back the layer information to the first communication node.

[0015] The embodiment of the present application further provides a device for receiving layer information, including:

[0016] A transmission module, configured to transmit configuration information to the second communication node;

[0017] The second receiving module is configured to receive layer information fed back by the second communication node, where the layer information is determined by the second communication node according to the configuration information.

[0018] The present application also provides a communication node, including:

[0019] one or more processors;

[0020] a storage device configured to store one or more programs;

[0021] When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned layer information feedback method or layer information receiving method.

[0022] An embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the above-mentioned layer information feedback method or layer information receiving method is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A flowchart of a layer information feedback method provided by an embodiment;

[0024] Figure 2 A schematic diagram of an application scenario of a layer information feedback method provided by an embodiment;

[0025] Figure 3 A flowchart of a method for receiving layer information provided by an embodiment;

[0026] Figure 4 A schematic structural diagram of a layer information feedback device provided by an embodiment;

[0027] Figure 5 A schematic structural diagram of a device for receiving layer information provided by an embodiment;

[0028] Figure 6 A schematic diagram of the structure of a communication node provided by an embodiment. DETAILED DESCRIPTION

[0029] The present application is described below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily. It should also be noted that, for ease of description, only the parts related to the present application rather than all structures are shown in the accompanying drawings.

[0030] For two communication nodes that need to transmit data, such as data transmission between a base station and a user terminal, data transmission between base stations, data transmission between user terminals, etc., for huge amounts of data, space division multiplexing is usually used, that is, one communication node transmits multiple layers of signals to another communication node. However, since the communication nodes are unaware of the transmission performance and related information of each layer, they cannot distinguish the performance of each layer to make efficient data transmission decisions, resulting in low communication efficiency.

[0031] In this embodiment, for the situation where communication nodes transmit multi-layer signals using space division multiplexing technology, the communication node that transmits the layer signal is used as the first communication node, and the communication node that receives the layer signal is used as the second communication node. Layer information is fed back to the first communication node through the second communication node to indicate the relevant transmission performance of each layer, so that the first communication node can make full use of each layer to make efficient data transmission decisions, thereby improving communication efficiency and reliability.

[0032] Figure 1 The following is a flow chart of a layer information feedback method provided by an embodiment. Figure 1 As shown, the layer information feedback method provided in this embodiment is applicable to the second communication node, including S110, S120 and S130.

[0033] In S110, configuration information of a first communication node is received.

[0034] The configuration information is transmitted from the first communication node to the second communication node as a basis for the second communication node to determine the layer information. For example, the configuration information may include a reference signal, which is sent to the second communication node through different layers or through different ports. The second communication node receives and measures the reference signal to obtain the received power of the signal of each layer or a specific layer. For example, the configuration information may include each column vector of the precoding matrix, and the second communication node may determine the column vector corresponding to each layer or a specific layer. For another example, the configuration information may include the codebook type, frequency band, configuration information for the layer that needs feedback, configuration information for the reporting order of each layer, the enabling status of various configurations, etc. The configuration information may be specified by the protocol or configured by the first communication node.

[0035] In S120, the layer information of the first communication node is determined according to the configuration information.

[0036] The second communication node determines the layer information according to the received configuration information. The layer information may include the receiving power, receiving quality, column vector of the precoding matrix corresponding to each layer or specific layer, etc., which is used to indicate the relevant transmission performance of each layer or specific layer to the first communication node.

[0037] In S130, the layer information is fed back to the first communication node.

[0038] By feeding back the layer information to the first communication node, the relevant transmission performance of each layer or a specific layer is indicated, so that the first communication node can make a data transmission decision of space division multiplexing accordingly. For example, the layer information includes the received power of the reference signal of each layer, and the first communication node can compare the size of the received power of the signal of each transmitting antenna port of the second communication node, or the size of the received power of the signal of each layer, so as to map the data to be transmitted to different antenna ports or layers for transmission.

[0039] Figure 2 The following is a schematic diagram of an application scenario of a layer information feedback method provided by an embodiment. Figure 2 As shown, the first communication node transmits configuration information to the second communication node, the second communication node determines the layer information according to the configuration information, and feeds back the layer information to the first communication node. Among them, the first communication node can be used to transmit layer signals to the second node in a space division multiplexing manner. For example, the first communication node transmits a layer of signal with one antenna port, and transmits multiple layers of signals through multiple antenna ports. For another example, the first communication node maps the signal to the antenna port through a precoding matrix for transmission, and transmits the layer signal, and the transmitted layers of signals correspond to the column vectors in the precoding matrix respectively. It is also applicable to the case where only one layer of signal is transmitted, that is, the first communication node contains only one layer. It should be noted that the method of this embodiment is applicable to any two communication nodes that have a data transmission relationship. For example, in addition to feeding back layer information to the first communication node, the second communication node can also communicate with the third communication node, send configuration information to the third communication node, and the third communication node feeds back the layer information of the second communication node to the second communication node. The communication node can be a base station or a user terminal.

[0040] In one embodiment, the layer information feedback method further includes: determining a transmission order based on the layer information. The transmission order may include a layer reporting order, an order of layers in a reporting sequence, a layer priority, etc., which are used to indicate the transmission rule of the layer information to the first communication node, for example, the layer with the strongest receiving power is reported first, the layer with the smallest index number has the highest priority, etc. When the first communication node receives the layer information, it may further understand the transmission characteristics of each layer based on the transmission order; or obtain the layer information based on the transmission order; or the transmission order carries the corresponding layer information, thereby saving the bit overhead of transmitting the corresponding layer information.

[0041] In one embodiment, the layer information includes: layer reception strength; the transmission order includes at least one of the following: layer reporting order; order of layers in the reporting sequence; layer priority; and layer index number. In this embodiment, the transmission order is determined according to the layer reception strength. When the first communication node receives the layer information, it can know the layer reception strength according to the transmission order. The layer reception strength can be measured by the second communication node when receiving the configuration information, or it can be obtained according to the configuration information.

[0042] In one embodiment, the layer reporting order is determined according to the layer receiving strength, and specifically, the order of layer reporting can be determined according to the order of the layer receiving strength. For example, the layer information corresponding to the layer with a large receiving strength is reported first, and the layer information corresponding to the layer with a small receiving strength is reported later; or, the layer information corresponding to the layer with a small receiving strength is reported first, and the layer information corresponding to the layer with a large receiving strength is reported later. After the first communication node receives the layer information, the layer receiving strength can be determined according to the layer reporting order.

[0043] In one embodiment, the order of layers in the report sequence is determined according to the layer reception strength, and specifically, the order of layers in the report sequence may be determined according to the order of the layer reception strength. For example, the layer information corresponding to the layer with high reception strength is before the layer information corresponding to the layer with low reception strength in the report sequence, that is, the layer information corresponding to the layer with low reception strength is reported later; or, the layer information corresponding to the layer with high reception strength is after the layer information corresponding to the layer with low reception strength in the report sequence, that is, the layer information corresponding to the layer with low reception strength is reported first. After the first communication node receives the layer information, the layer reception strength can be determined according to the order of the layers in the report sequence.

[0044] In one embodiment, the layer priority is determined according to the layer receiving strength, and specifically, the layer priority can be determined according to the order of the layer receiving strength. For example, the layer information corresponding to the layer with large receiving strength is reported first than the layer information corresponding to the layer with small receiving strength, that is, the layer with large receiving strength has a higher priority than the layer with small receiving strength; or, the layer information corresponding to the layer with small receiving strength is reported first than the layer information corresponding to the layer with large receiving strength, that is, the layer with large receiving strength has a lower priority than the layer with small receiving strength. The priority may refer to the priority of the reporting order, or the importance of the report, or when only part of the layer information of multiple layers needs to be reported, the layer with high priority is reported first, and the layer with low priority may be discarded, etc. When the first communication node receives the layer information, it can determine the layer receiving strength according to the layer priority.

[0045] In one embodiment, the layer index number is determined according to the layer reception strength, and specifically, the layer index number may be determined in the order of the layer reception strength. For example, a layer with a large reception strength corresponds to a smaller layer index number, and a layer with a small reception strength corresponds to a larger layer index number; or, a layer with a large reception strength corresponds to a larger layer index number, and a layer with a small reception strength corresponds to a smaller layer index number. When the first communication node receives the layer information, it can determine the layer reception strength according to the layer index number.

[0046] In one embodiment, the layer information includes: layer delay; the transmission order includes at least one of the following: layer reporting order; order of layers in the reporting sequence; layer priority; and layer index number. In this embodiment, the transmission order is determined according to the layer delay. After the first communication node receives the layer information, the layer delay can be obtained according to the transmission order. The layer delay can be measured by the second communication node after receiving the configuration information, or obtained according to the configuration information.

[0047] In one embodiment, the layer reporting order is determined according to the layer delay, and specifically, the order of the layer reporting can be determined according to the order of the layer delay. For example, the layer information corresponding to the layer with a large delay is reported first, and the layer information corresponding to the layer with a small delay is reported later; or, the layer information corresponding to the layer with a small delay is reported first, and the layer information corresponding to the layer with a large delay is reported later. After the first communication node receives the layer information, the layer delay can be determined according to the layer reporting order.

[0048] In one embodiment, the order of layers in the reporting sequence is determined according to the layer delay, and specifically, the order of layers in the reporting sequence can be determined according to the order of the layer delay. For example, the layer information corresponding to the layer with a large delay is before the layer information corresponding to the layer with a small delay in the reporting sequence, that is, the layer information corresponding to the layer with a small delay is reported later; or, the layer information corresponding to the layer with a large delay is after the layer information corresponding to the layer with a small delay in the reporting sequence, that is, the layer information corresponding to the layer with a small delay is reported first. After the first communication node receives the layer information, the layer delay can be determined according to the order of the layers in the reporting sequence.

[0049] In one embodiment, the layer priority is determined according to the layer delay, and specifically, the layer priority can be determined according to the order of the layer delay. For example, the layer information corresponding to the layer with a large delay is reported first than the layer information corresponding to the layer with a small delay, that is, the priority of the layer with a large delay is higher than that of the layer with a small delay; or, the layer information corresponding to the layer with a small delay is reported first than the layer information corresponding to the layer with a large delay, that is, the priority of the layer with a large delay is lower than that of the layer with a small delay. When the first communication node receives the layer information, it can determine the layer delay according to the layer priority.

[0050] In one embodiment, the layer index number is determined according to the layer delay, and specifically, the layer index number can be determined in the order of the layer delay. For example, the layer with a large delay corresponds to a smaller layer index number, and the layer with a small delay corresponds to a larger layer index number; or, the layer with a large delay corresponds to a larger layer index number, and the layer with a small delay corresponds to a smaller layer index number. When the first communication node receives the layer information, it can determine the layer delay according to the layer index number.

[0051] In one embodiment, the layer information includes: layer priority; the transmission order includes at least one of the following: layer reporting order; order of layers in the reporting sequence; and layer index number. In this embodiment, the transmission order is determined according to the layer priority. When the first communication node receives the layer information, the layer priority can be learned according to the transmission order. The layer priority can be measured by the second communication node when receiving the configuration information, or obtained according to the configuration information.

[0052] In one embodiment, the layer reporting order is determined according to the layer priority, and specifically, the order of layer reporting can be determined according to the order of layer priority. For example, the layer information corresponding to the layer with a high priority is reported first, and the layer information corresponding to the layer with a low priority is reported later; or, the layer information corresponding to the layer with a low priority is reported first, and the layer information corresponding to the layer with a high priority is reported later. When the first communication node receives the layer information, it can determine the layer priority according to the layer reporting order.

[0053] In one embodiment, the order of layers in the reporting sequence is determined according to the layer priority, and specifically, the order of layers in the reporting sequence can be determined according to the order of layer priority. For example, the layer information corresponding to the layer with a high priority is before the layer information corresponding to the layer with a low priority in the reporting sequence, that is, the layer information corresponding to the layer with a low priority is reported later; or, the layer information corresponding to the layer with a high priority is after the layer information corresponding to the layer with a low priority in the reporting sequence, that is, the layer information corresponding to the layer with a low priority is reported first. After the first communication node receives the layer information, the layer priority can be determined according to the order of the layers in the reporting sequence.

[0054] In one embodiment, the layer index number is determined according to the layer priority, and specifically, the layer index number can be determined in the order of the layer priority. For example, the layer index number corresponding to the high priority layer is smaller, and the layer index number corresponding to the low priority layer is larger; or, the layer index number corresponding to the high priority layer is larger, and the layer index number corresponding to the low priority layer is smaller. When the first communication node receives the layer information, it can determine the layer priority according to the layer index number.

[0055] In one embodiment, the layer information includes: a layer index number; the transmission order includes at least one of the following: a layer reporting order; an order of layers in a reporting sequence; and a layer priority. In this embodiment, the transmission order is determined according to the layer index number. When the first communication node receives the layer information, the layer index number can be obtained according to the transmission order. The layer index number can be measured by the second communication node when receiving the configuration information, or obtained according to the configuration information.

[0056] In one embodiment, the layer reporting order is determined according to the layer index number, and specifically, the order of layer reporting can be determined according to the order of the layer index numbers. For example, the layer information corresponding to the layer with a large index number is reported first, and the layer information corresponding to the layer with a small index number is reported later; or, the layer information corresponding to the layer with a small index number is reported first, and the layer information corresponding to the layer with a large index number is reported later. When the first communication node receives the layer information, it can determine the layer index number according to the layer reporting order.

[0057] In one embodiment, the order of layers in the report sequence is determined according to the layer index number, and specifically, the order of layers in the report sequence can be determined according to the order of the layer index numbers. For example, the layer information corresponding to the layer with a large index number is before the layer information corresponding to the layer with a small index number in the report sequence, that is, the layer information corresponding to the layer with a small index number is reported later; or, the layer information corresponding to the layer with a large index number is after the layer information corresponding to the layer with a small index number in the report sequence, that is, the layer information corresponding to the layer with a small index number is reported first. After the first communication node receives the layer information, the layer index number can be determined according to the order of the layers in the report sequence.

[0058] In one embodiment, the layer priority is determined according to the layer index number, and specifically, the layer priority can be determined in the order of the size of the layer index number. For example, the layer information corresponding to the layer with a larger index number is reported first than the layer information corresponding to the layer with a smaller index number, that is, the priority of the layer with a larger index number is higher than the layer with a smaller delay; or, the layer information corresponding to the layer with a smaller index number is reported first than the layer information corresponding to the layer with a larger index number, that is, the priority of the layer with a larger index number is lower than the layer with a smaller delay. When the first communication node receives the layer information, it can determine the layer index number according to the layer priority.

[0059] In one embodiment, the determining of the transmission order according to the layer information includes: when the first communication node has at least two layers, sorting the layers in ascending order according to the layer information to obtain the transmission order; or, when the first communication node has at least two layers, sorting the layers in descending order according to the layer information to obtain the transmission order. For example, in the above embodiment, the transmission order is obtained by ascending or descending sorting according to the layer reception strength, layer priority, layer index number, and layer delay.

[0060] In one embodiment, the transmission order is determined according to the layer information, including at least one of the following: determining the transmission order according to the configuration order of the layer index numbers; and determining the transmission order according to the reporting order of the layer index numbers. In this embodiment, the layer information includes the layer index numbers, and the transmission order can be determined according to the configuration order of the layer index numbers. For example, the first communication node can configure the order of the index numbers and include it in the configuration information and send it to the second communication node, so as to configure the transmission order of the layer information; the transmission order can also be determined according to the reporting order of the layer index numbers. For example, the second communication node indicates the transmission order of the layer information to the first communication node by reporting the order of the layer index numbers.

[0061] In one embodiment, the layer information includes: first-category information and layer index numbers; the transmission order includes a reporting order of the layer index numbers. In this embodiment, determining the transmission order based on the layer information includes: when there are at least two layers of the first communication node, sorting the layers in descending order according to the first-category information to obtain a reporting order of the layer index numbers. The first-category information includes at least one of the following: layer reception strength; layer reception power; layer signal to interference plus noise ratio (SINR); and layer signal to noise ratio.

[0062] In one embodiment, the layer information includes a layer index number and a layer reception strength, and the layer index number is reported in order according to the size of the layer reception strength. For example, the layer index number of the layer with a large reception strength is reported first, and the layer index number of the layer with a small reception strength is reported later; or, the layer index number of the layer with a small reception strength is reported first, and the layer index number of the layer with a large reception strength is reported later. When the first communication node receives the layer information, it can determine the layer reception strength according to the order in which the layer index number is reported.

[0063] In one embodiment, the layer information includes a layer index number and a layer receiving power, and the layer index number is reported in order according to the size of the layer receiving power. For example, the layer index number of the layer with large receiving power is reported first, and the layer index number of the layer with small receiving power is reported later; or, the layer index number of the layer with small receiving power is reported first, and the layer index number of the layer with large receiving power is reported later. When the first communication node receives the layer information, it can determine the layer receiving power according to the order in which the layer index number is reported.

[0064] In one embodiment, the layer information includes a layer index number and a layer signal to interference noise ratio, and the layer index number is reported in order according to the size of the layer signal to interference noise ratio. For example, the layer index number of the layer with a large signal to interference noise ratio is reported first, and the layer index number of the layer with a small signal to interference noise ratio is reported later; or, the layer index number of the layer with a small signal to interference noise ratio is reported first, and the layer index number of the layer with a large signal to interference noise ratio is reported later. When the first communication node receives the layer information, it can determine the signal to interference noise ratio according to the order in which the layer index number is reported.

[0065] In one embodiment, the layer information includes a layer index number and a layer signal-to-noise ratio, and the layer index number is reported in order according to the size of the layer signal-to-noise ratio. For example, the layer index number of the layer with a large signal-to-noise ratio is reported first, and the layer index number of the layer with a small signal-to-noise ratio is reported later; or, the layer index number of the layer with a small signal-to-noise ratio is reported first, and the layer index number of the layer with a large signal-to-noise ratio is reported later. When the first communication node receives the layer information, it can determine the signal-to-noise ratio according to the order in which the layer index number is reported.

[0066] In one embodiment, the layer information includes at least one of the following: a column vector of a precoding matrix; a reference signal received power; a reference signal received quality; a layer index number; a layer received strength; a layer priority; and a layer delay.

[0067] In one embodiment, the layer information includes a column vector of a precoding matrix. In space division multiplexing transmission, the transmitted signals of each layer correspond to the column vectors in the precoding matrix respectively, and the layer information fed back by the second communication node to the first communication node includes the column vector in the precoding matrix, so that the first communication node can accurately obtain the column vector, which is convenient for analyzing the signal transmission on the layer corresponding to the column vector. It should be noted that since the matrix can be transposed, the vector in the precoding matrix corresponding to the layer can also be expressed as a row vector. The information of the column vector in the precoding matrix is ​​equivalent to the information of the vector in the precoding matrix corresponding to the layer.

[0068] In one embodiment, the layer information includes reference signal received power. The first communication node transmits a reference signal, the second communication node receives and measures the reference signal, and feeds back the received power of the reference signal, so that the first communication node obtains the received power information of the transmitted reference signal, and can compare the strength of the received power of each transmitting antenna port, or compare the size of the received power of each layer signal of the second communication node. The reference signal can be included in the configuration information sent to the second communication node.

[0069] In one embodiment, the layer information includes the reference signal reception quality. The first communication node transmits a reference signal, the second communication node receives and measures the reference signal, and feeds back the reception quality of the reference signal, so that the first communication node obtains the reception quality of the reference signal transmitted, and can compare the reception quality of each transmitting antenna port, or compare the reception quality of each layer signal of the second communication node. The reference signal can be included in the configuration information and sent to the second communication node.

[0070] In one embodiment, the layer information includes a layer index number. The second communication node receives and measures the reference signal transmitted by the first communication node, and reports the layer index number to the first communication node, so as to facilitate the first communication node to determine the layer selection decision.

[0071] In one embodiment, the layer information includes layer reception strength. The second communication node receives and measures the reference signal transmitted by the first communication node, and reports the layer reception strength to the first communication node, so as to facilitate the first communication node to determine the layer selection decision.

[0072] In one embodiment, the layer information includes a layer priority. The second communication node receives and measures a reference signal transmitted by the first communication node, and reports the layer priority to the first communication node, so as to facilitate the first communication node to determine the layer selection decision.

[0073] In one embodiment, the layer information includes layer delay. The second communication node receives and measures the reference signal transmitted by the first communication node, and reports the layer delay to the first communication node, so as to facilitate the first communication node to determine the layer selection decision.

[0074] It should be noted that the layer information may also include two or more of the above. For example, the layer information includes layer priority and layer delay, and the second communication node reports the priority and layer delay of each layer or a specific layer to the first communication node.

[0075] In one embodiment, the layer information includes: layer reception strength; the layer information fed back to the first communication node includes: reporting a certain number of layer information with the highest layer reception strength to the first communication node. In this embodiment, the second communication node reports the layer information of a certain number of layers with the highest reception strength to the first communication node. For example, the layer information of one layer with the highest reception strength is reported to the first communication node; for another example, the layer information of two layers with the highest reception strength is reported, etc. Among them, the first preset number can be specified by the protocol, and can also be configured by the first communication node in the configuration information. By reporting the first preset number of layer information, the layer information of the layer with the highest reception strength can be obtained with less resource overhead, so that the first communication node can know and make data transmission decisions accordingly, avoiding the use of more resource overhead to report information of all layers and reducing resource occupancy.

[0076] In one embodiment, the layer information includes: layer delay; the feeding back of the layer information to the first communication node includes: reporting a second preset number of layer information with the lowest layer delay to the first communication node. In this embodiment, the second communication node reports the layer information of a certain number of layers with the lowest layer delay to the first communication node. For example, the layer information of 1 layer with the lowest layer delay is reported. For another example, the layer information of 2 layers with the lowest layer delay is reported. Among them, the second preset number can be specified by the protocol, and can also be configured by the first communication node in the configuration information. By reporting the second preset number of layer information, the layer information of the layer with the lowest layer delay can be obtained with less resource overhead, thereby reducing resource occupation.

[0077] In one embodiment, the layer information includes: layer priority; the feeding back of the layer information to the first communication node includes: reporting the third preset number of layer information with the highest layer priority to the first communication node. In this embodiment, the second communication node reports the layer information of a certain number of layers with the highest layer priority to the first communication node. For example, the layer information of the layer with the highest layer priority is reported. For another example, the layer information of the two layers with the highest layer priority is reported. Among them, the third preset number can be specified by the protocol, and can also be configured by the first communication node in the configuration information. By reporting the third preset number of layer information, the layer information of the layer with the highest layer priority can be obtained with less resource overhead, thereby reducing resource occupation.

[0078] In one embodiment, the layer information includes: a layer index number and a layer reception strength; the feeding back of the layer information to the first communication node includes: reporting to the first communication node a fourth preset number of layer index numbers with the highest layer reception strength. In this embodiment, the second communication node reports the layer index numbers of a certain number of layers with the highest reception strength to the first communication node. For example, the layer index number of the layer with the highest reception strength is reported; as another example, the layer index numbers of the two layers with the highest reception strength are reported, etc. Among them, the fourth preset number can be specified by the protocol, and can also be configured by the first communication node in the configuration information. By reporting the fourth preset number of layer information, the layer index numbers of the layers with the highest reception strength can be obtained with less resource overhead, thereby reducing resource occupancy.

[0079] In one embodiment, the layer information includes: a layer index number and a layer delay; the layer information is fed back to the first communication node, including: reporting the fifth preset number of layer index numbers with the lowest layer delay to the first communication node. In this embodiment, the second communication node reports the layer index numbers of a certain number of layers with the lowest layer delay to the first communication node. For example, the layer index number of 1 layer with the lowest layer delay is reported; for another example, the layer index numbers of 2 layers with the lowest layer delay are reported, etc. Among them, the fifth preset number can be specified by the protocol, and can also be configured by the first communication node in the configuration information. By reporting the fifth preset number of layer information, the layer index numbers of the layers with the lowest layer delay can be obtained with less resource overhead, thereby reducing resource usage.

[0080] In one embodiment, the layer information includes: a layer index number and a layer priority; the feeding back of the layer information to the first communication node includes: reporting the sixth preset number of layer index numbers with the highest layer priority to the first communication node. In this embodiment, the second communication node reports the layer index numbers of a certain number of layers with the highest layer priority to the first communication node. For example, the layer index number of the layer with the highest layer priority is reported; for another example, the layer index numbers of the two layers with the highest layer priority are reported, etc. Among them, the sixth preset number can be specified by the protocol, and can also be configured by the first communication node in the configuration information. By reporting the sixth preset number of layer information, the layer index numbers of the layers with the lowest layer delay can be obtained with less resource overhead, thereby reducing resource usage.

[0081] In one embodiment, the layer information includes at least one of the following: the layer used by the phase tracking reference signal; the layer used by the positioning reference signal; the beam with the smallest strength; and the antenna port with the smallest strength.

[0082] In one embodiment, the second communication node suggests a used layer of the phase tracking reference signal to the first communication node, so that the first communication node can select a layer for transmitting the phase tracking reference signal.

[0083] In one embodiment, the second communication node suggests a used layer of a positioning reference signal to the first communication node, so that the first communication node can select a layer for transmitting the positioning reference signal.

[0084] In one embodiment, the second communication node recommends the beam with the smallest strength to the first communication node. In this embodiment, the precoding vector on the layer is composed of beams, and by reporting the beam with the smallest strength, the first communication node selects the second communication node, the third communication node, etc. with the smallest mutual interference for multi-user transmission.

[0085] In one embodiment, the second communication node recommends the antenna port with the smallest strength to the first communication node, so that the first communication node can select the second communication node, the third communication node, etc. with the smallest mutual interference to perform multi-user transmission, thereby improving communication efficiency.

[0086] In one embodiment, the layer information includes: a target layer with set attributes. In this embodiment, the second communication node feeds back a target layer with set attributes to the first communication node, for example, a target layer whose feedback layer delay is lower than a first threshold; or a target layer whose feedback layer receiving strength is greater than a second threshold, etc. The set attributes may be specified by a protocol, configured by the first communication node, or determined by the second communication node.

[0087] In one embodiment, the feeding back the layer information to the first communication node includes: indicating the target layer with the set attribute to the first communication node in a bit mapping manner.

[0088] In this embodiment, the layers with set attributes in any combination are indicated to the first communication node in a concise and clear manner in a bit mapping manner. For example, the layer with the strongest reception strength is indicated in a bit mapping manner; for another example, the layer with the smallest delay is indicated in a bit mapping manner; for another example, the layer with the smallest interference is indicated in a bit mapping manner; for another example, the layer with the highest priority is indicated in a bit mapping manner, etc. Among them, the number of layers with set attributes can be 1 or an integer greater than 1. For example, the number of layers with set attributes can be determined by the second communication node, and the second communication node indicates multiple layers with set attributes in a bit mapping manner. The indicated multiple layers have approximately equivalent set attributes. For example, the second communication node indicates the three layers with the strongest reception strength in a bit mapping manner, then these three layers can be respectively used as the layers with the strongest reception strength for the first communication node to decide.

[0089] In one embodiment, the setting attribute includes at least one of the following: setting receiving strength; setting delay; setting interference; and setting priority. In this embodiment, the setting attribute may be setting layer receiving strength, that is, the layer indicated in the layer information is a layer that satisfies the set receiving strength, for example, the setting layer receiving strength is greater than the third threshold, or between the fourth threshold and the fifth threshold, or less than the sixth threshold, etc. The setting attribute may also be setting delay, and the layer indicated in the layer information is a layer that satisfies the set delay. The setting attribute may also be setting interference, and the layer indicated in the layer information is a layer that satisfies the set interference. The setting attribute may also be setting priority, and the layer indicated in the layer information is a layer that satisfies the set priority. The setting attribute may also include two or more types, for example, the setting attribute includes setting receiving strength and setting delay, and the layer indicated in the layer information is a layer that satisfies the set receiving strength and the set delay.

[0090] In one embodiment, the bit width of the bitmap is rank, and the rank is the number of layers of the first communication node. In this embodiment, the bit width of the bitmap is rank, so that any possible combination of layers with set attributes can be indicated in the layer information without requiring additional resource overhead.

[0091] In one embodiment, the number of target layers with set attributes is determined according to the rank; the number of target layers with set attributes is less than the rank, and the rank is the number of layers of the first communication node. In this embodiment, the number of target layers is determined according to the rank, the number of target layers is less than the rank, and the number of target layers corresponding to the larger rank is greater than or equal to the number of target layers corresponding to the smaller rank. For example, if the rank is 3 and the number of target layers is 2, then when the rank is 4, the number of target layers satisfies the requirement of being greater than or equal to 2 and less than 4, that is, it can be 2 or 3.

[0092] Table 1 is a mapping relationship table of the target layer number and rank provided by an embodiment. In this embodiment, the rank is 1, and the corresponding target layer number is 0; the rank is 2, and the corresponding target layer number is 1; the rank is 3, and the corresponding target layer number is 1; the rank is 4, and the corresponding target layer number is 1.

[0093] Table 1 Mapping relationship between the number of target layers and rank

[0094] rank 1 2 3 4 Target layer number 0 1 1 1

[0095] Table 2 is another mapping relationship table of the number of target layers and the rank provided by an embodiment. In this embodiment, the rank is 1, and the corresponding number of target layers is 0; the rank is 2, and the corresponding number of target layers is 1; the rank is 3, and the corresponding number of target layers is 1; the rank is 4, and the corresponding number of target layers is 2.

[0096] Table 2 Mapping relationship between the number of target layers and rank

[0097] rank 1 2 3 4 Target layer number 0 1 1 2

[0098] Table 3 is another mapping relationship table between the number of target layers and the rank provided by an embodiment. In this embodiment, the rank is 1, and the corresponding number of target layers is 0; the rank is 2, and the corresponding number of target layers is 1; the rank is 3, and the corresponding number of target layers is 2; the rank is 4, and the corresponding number of target layers is 2.

[0099] Table 3 Mapping relationship between the number of target layers and rank

[0100] rank 1 2 3 4 Target layer number 0 1 2 2

[0101] In one embodiment, the feeding back the layer information to the first communication node includes: indicating the target layer with the set attribute to the first communication node in a bit combination state. In this embodiment, the target layer with the set attribute is indicated by the bit combination state, and when the number of layers with the set attribute is determined, bit overhead can be saved.

[0102] In one embodiment, the bit combination state is represented based on a preset number of bits; the number of bit combination states constituted by the preset number of bits is greater than or equal to the rank, and the rank is the number of layers of the first communication node.

[0103] In this embodiment, the number of bits in the bit combination state is determined according to the rank. When the number of target layers with set attributes to be fed back is 1, the number of bit combination states is greater than or equal to the rank, so that it is sufficient to indicate all target layers. For example, when the number of target layers is 1 and the rank is 3, there are 3 possible target layers, and the number of bits is at least 2 (there are at most 4 combination states) to ensure that all possibilities are represented. For another example, when the number of target layers is 1 and the rank is 2, there are 2 possible target layers, and the number of bits is at least 1 (there are at most 2 combination states) to ensure that all possibilities are represented.

[0104] In one embodiment, the number of bits in the bit combination state is determined according to the rank and the number of target layers. When the number of target layers is greater than 1, the number of bit combination states satisfies: greater than or equal to all possible numbers of target layers indicated from the rank. For example, if the rank is 3 and the number of target layers is 2, then there are 3 possibilities for indicating 2 layers with set attributes from 3 layers, and the combination state of 2 bits (with a maximum of 4 combination states) can represent all possibilities. For another example, if the rank is 4 and the number of target layers is 2, then there are 6 possibilities for indicating 2 layers with set attributes from 4 layers, and the combination state of 3 bits (with a maximum of 8 combination states) can represent all possibilities.

[0105] Table 4: Mapping relationship between the preset number of bits and the rank

[0106] rank 1 2 3 4 Preset number of bits 0 1 2 2

[0107] Table 4 is a mapping relationship table of the preset number of bits and the rank provided in an embodiment. In this embodiment, the rank is 1, and the corresponding preset number of bits is 0; the rank is 2, and the corresponding preset number of bits is 1; the rank is 3, and the corresponding preset number of bits is 2; the rank is 4, and the corresponding preset number of bits is 2.

[0108] Table 5 is a mapping relationship table of another preset number of bits and rank provided by an embodiment. In this embodiment, the rank is 1, and the corresponding preset number of bits is 0; the rank is 2, and the corresponding preset number of bits is 1; the rank is 3, and the corresponding preset number of bits is 2; the rank is 4, and the corresponding preset number of bits is 3.

[0109] Table 5 Mapping relationship between the preset number of another bit and the rank

[0110] rank 1 2 3 4 Preset number of bits 0 1 2 3

[0111] In one embodiment, the target layer in the layer information has equivalent set attributes. In this embodiment, the layer indicated by the second communication node in the layer information has equivalent (roughly equivalent, but there may be a certain gap in reality) set attributes, for the first communication node to make layer selection decisions within a larger range, and the layers within the range have approximately equivalent set attributes. For example, the second communication node indicates that 2 layers have approximately equivalent set attributes (for example, having equivalent layer receiving strength, and / or equivalent layer delay, etc.), for the first communication node to select from the 2 layers. For example, the second communication node indicates that 4 layers have approximately equivalent set attributes, for the first communication node to select from the 4 layers. It should be noted that the number of target layers may also be only 1, that is, the second communication node indicates that 1 layer has approximately equivalent set attributes, and the first communication node can select from 1 layer.

[0112] In this embodiment, the equivalent condition may be predetermined by the protocol, may be configured by the first communication node, or may be determined by the second communication node and reported to the first communication node. For example, the second communication node determines that the equivalent condition is that there is at least one layer whose receiving strength is within a set receiving strength range, then the at least one layer is determined to have an equivalent set attribute, reports the at least one layer to the first communication node, and reports the equivalent condition, so that the first communication node learns that the at least one layer has an equivalent set attribute because it is within the set receiving strength range.

[0113] In one embodiment, the layer indicated by the second communication node may have an equal layer receiving strength, an equal maximum strength, an equal delay, or an equal minimum delay.

[0114] In one embodiment, the layers in the layer information are identified by the first communication node as having the same set attributes. In this embodiment, it is assumed that the layers indicated by the second communication node have the same set attributes (in fact, the layers indicated by the second communication node may not have the same set attributes), so that the first communication node can select and make decisions on the layers in a wider range. For example, the second communication node indicates 2 layers, and the 2 layers are identified by the first communication node as having the same set attributes. The first communication node can select from the 2 layers, and it is assumed that the 2 layers have the same set attributes. For example, the second communication node indicates 4 layers with the same set attributes, and the 4 layers are identified by the first communication node as having the same set attributes. The first node can select from the 4 layers, and it is assumed that the 4 layers have the same set attributes. It should be noted that the number of target layers with the same set attributes can also be only 1, that is, the second communication node indicates 1 layer, which is identified by the first communication node as having the same set attributes. The first communication node can select from 1 layer, and it is assumed that the 1 layer has the same set attributes.

[0115] In one embodiment, the layer indicated by the second communication node can be recognized by the first communication node as having an equivalent layer reception strength, can also be recognized by the first communication node as having an equivalent maximum strength, can also be recognized by the first communication node as having an equivalent delay, and can also be recognized by the first communication node as having an equivalent minimum delay.

[0116] In one embodiment, the layer information is identified by the first communication node as being reported in the order of layer reception strength. In this embodiment, the first communication node assumes that the layers reported by the second communication node are reported in the order of layer reception strength (in fact, the layers reported by the second communication node may not be reported in the order of layer reception strength), so that the reception strength of each layer can be assumed based on the reporting order of the layer information.

[0117] In one embodiment, the layer information includes: layer reception strength; the feeding back of the layer information to the first communication node includes: using the layer with the strongest layer reception strength as the first layer reported to the first communication node. In this embodiment, the layer with the strongest reception strength is reported first, and the layer information corresponding to the layer with the strongest reception strength is transmitted first, so that the first communication node can determine the layer with the strongest reception strength.

[0118] In one embodiment, the layer information is identified by the first communication node as the first reported layer as the layer with the strongest reception strength. In this embodiment, assuming that the layer with the strongest reception strength is reported first (in fact, the first reported layer may not be the layer with the strongest reception strength), when the first communication node receives the layer information, it identifies the first reported layer in the layer information as the layer with the strongest reception strength.

[0119] In one embodiment, the transmission order is configured by the first communication node. In this embodiment, the transmission order of the layer information is configured by the first communication node. For example, the first communication node configures the layer information to be reported in the order of layer reception strength from large to small; for another example, the first communication node configures the layer information layer index number to be reported in the order of layer delay from small to large; for another example, the first communication node configures the first reported layer in the layer information to be the layer of layer reception strength, etc. The transmission order may be included in the configuration information and transmitted to the second communication node, and the second communication node may determine the transmission order according to the configuration information and / or the layer information.

[0120] In one embodiment, the layer information includes the transmission order. In this embodiment, the second communication node feeds back the transmission order to the first communication node for the first communication node to learn or make a decision.

[0121] In one embodiment, the configuration information includes: second type of information; determining the layer information of the first communication node based on the configuration information includes: determining the layer information of the first communication node based on the second type of information, wherein the second type of information includes at least one of the following: codebook type; frequency band; and layer report order configuration item.

[0122] In one embodiment, the layer information includes at least one of the following: an inclusion status indicated for a layer with the strongest layer reception strength; an inclusion status indicated for a layer with the lowest layer delay; and an inclusion status indicated for a target layer with set attributes; wherein the inclusion status includes: inclusion and non-inclusion.

[0123] In one embodiment, the layer information is determined according to the codebook type. For example, it is determined according to the codebook type whether the layer information includes an indication of the layer with the strongest reception strength; for another example, it is determined according to the codebook type whether the layer information includes an indication of layer delay; for another example, it is determined according to the codebook type whether the layer information includes an indication of a layer with a set attribute.

[0124] In one embodiment, the layer information is determined according to the frequency band. For example, the layer information is determined according to the frequency band to determine whether it includes an indication of the layer with the strongest receiving strength; for another example, the layer information is determined according to the frequency band to determine whether it includes an indication of layer delay; for another example, the layer information is determined according to the frequency band to determine whether it includes an indication of a layer with a set attribute.

[0125] In one embodiment, the layer information is determined according to the layer report order configuration item. For example, it is determined according to the layer report order configuration item whether the layer information includes an indication of the layer with the strongest receiving strength; for another example, it is determined according to the layer report order configuration item whether the layer information includes an indication of layer delay; for another example, it is determined according to the layer report order configuration item whether the layer information includes an indication of a layer with a set attribute.

[0126] In one embodiment, the configuration information includes: third category information; determining the layer information of the first communication node based on the configuration information includes: determining the layer information of the first communication node based on the third category information; wherein the third category information includes at least one of the following: a layer reporting order configuration item; the layer reporting order configured by the layer reporting order configuration item; the enabling state of the layer reporting order configuration item; and the enabling state of the layer reporting order by the layer reporting order configuration item.

[0127] In this embodiment, the layer information can also be determined based on whether or not the layer reporting order configuration item exists; the layer information can also be determined based on the layer reporting order configured by the layer reporting order configuration item; the layer information can also be determined based on whether the layer reporting order configuration item is enabled; the layer information can also be determined based on whether the layer reporting order configuration item enables the layer reporting order.

[0128] In one embodiment, the target layer with the set attributes is configured by the first communication node.

[0129] In one embodiment, the target layer with set attributes is configured by the first communication node, including at least one of the following: the set attributes are configured by the first communication node; the number of target layers with set attributes is configured by the first communication node; and the number of bits indicating the target layer with set attributes is configured by the first communication node. For example, what the set attributes are specifically configured by the first communication node may include layer reception strength being greater than a certain threshold, etc.; for another example, the number of target layers with set attributes to be fed back or reported in the layer information configured by the first communication node may be configured to be 1, etc.; for another example, the number of bits indicating the target layer in the layer information configured by the first communication node may be configured to indicate the target layer by 2 bits, etc.

[0130] In one embodiment, the configuration information includes: a first configuration item and a second configuration item, and the first configuration item is associated with the second configuration item; wherein the first configuration item is set to configure a target layer with set attributes, and the second configuration item is set to configure a layer reporting order.

[0131] In this embodiment, the association relationship includes at least one of the following: the first configuration item is enabled and the second configuration item is not enabled; the first configuration item is not enabled and the second configuration item is enabled; and the first configuration item is not enabled and the second configuration item is not enabled.

[0132] For example, the configuration item indicating the target layer with the set attribute is enabled, and the configuration item for the layer reporting order is not enabled. For another example, the configuration item indicating the layer with a specific attribute is not enabled, and the configuration item for the layer reporting order is enabled. For another example, the configuration item indicating the layer with a specific attribute is not enabled, and the configuration item for the layer reporting order is not enabled, etc.

[0133] In one embodiment, the configuration information includes at least one of a first configuration item and a second configuration item, wherein the first configuration item is set to configure a target layer with a set attribute, and the second configuration item is set to configure a layer reporting order.

[0134] In one embodiment, the configuration information is determined according to the fourth type of information, wherein the fourth type of information includes at least one of the following: a protocol version number; a capability of the current communication node; and a frequency band of the current communication node. For example, according to the protocol version number, it is determined that the configuration information includes the first configuration item, or includes the second configuration item, or includes the first configuration item and the second configuration item; for another example, according to the capability of the current communication node (the second communication node), it is determined that the configuration information includes the first configuration item, or includes the second configuration item, or includes the first configuration item and the second configuration item; for another example, according to the frequency band of the current communication node (the second communication node), it is determined that the configuration information includes the first configuration item, or includes the second configuration item, or includes the first configuration item and the second configuration item.

[0135] In this embodiment, the communication node that transmits multi-layer signals is used as the first communication node, and the communication node that receives multi-layer signals is used as the second communication node. Layer information is fed back to the first communication node through the second communication node to indicate the relevant transmission performance of each layer, so that the first communication node can make full use of each layer to make efficient data transmission decisions, thereby improving communication efficiency and reliability.

[0136] The embodiment of the present application also provides a method for receiving layer information. Figure 3 The following is a flow chart of a method for receiving layer information provided by an embodiment. Figure 3 As shown, the layer information receiving method provided in this embodiment is applicable to the first communication node, including S210 and S220.

[0137] In S210, transmitting configuration information to the second communication node;

[0138] In S220, layer information fed back by the second communication node is received, where the layer information is determined by the second communication node according to the configuration information.

[0139] In one embodiment, the method further includes, when receiving the layer information fed back by the second communication node, determining a transmission scheme of space division multiplexing according to the layer information. For example, according to the layer information, a certain number of layers with the strongest layer reception strength are used to transmit data; for another example, according to the layer information, data is transmitted in a target layer with an equivalent layer delay.

[0140] In one embodiment, the method further includes: in the case of receiving the layer information fed back by the second communication node, determining the transmission characteristics of the layer according to the layer information, wherein the transmission characteristics include at least one of the following: reference signal received power; reference signal received quality; layer delay; layer priority; layer index number; layer received strength; layer used by phase tracking reference signal; layer used by positioning reference signal; beam with minimum strength; antenna port with minimum strength; and transmission order. In this embodiment, the first communication node determines the transmission characteristics of the layer according to the layer information, and makes a data transmission decision of spatial division multiplexing accordingly.

[0141] In one embodiment, the method further comprises: identifying the target layer having the set attribute in the layer information as having the equivalent set attribute.

[0142] In one embodiment, the method further comprises: identifying the layer information as being reported in order of layer reception strength.

[0143] In one embodiment, the method further comprises: identifying the layer information as the first reported layer as the layer with the strongest layer reception strength.

[0144] In one embodiment, the method further includes: configuring at least one of the following through the current communication node (first communication node): configuration information; setting attributes; transmission order of layer information; the number of target layers with set attributes to be fed back or reported in the layer information; the number of bits indicating the target layer in the layer information; a first configuration item; a second configuration item; a second type of information; and a third type of information. Among them, the second type of information includes at least one of the following: codebook type; frequency band; and a layer report order configuration item. The third type of information includes at least one of the following: a layer report order configuration item; a layer report order configured by the layer report order configuration item; an enabled state of the layer report order configuration item; and an enabled state of the layer report order configuration item for the layer report order.

[0145] In this embodiment, the communication node that transmits multi-layer signals is used as the first communication node, and the communication node that receives multi-layer signals is used as the second communication node. The first communication node receives the layer information fed back by the second communication node, and the relevant transmission performance of each layer is obtained. Based on this, each layer can be fully utilized to make efficient data transmission decisions, thereby improving communication efficiency and reliability. The layer information receiving method and the layer information feedback method of this embodiment belong to the same inventive concept and have the same beneficial effects. The technical details not described in detail in this embodiment can be referred to any of the above embodiments.

[0146] The embodiment of the present application also provides a layer information feedback device. Figure 4 FIG. 1 is a schematic diagram of a structure of a layer information feedback device provided by an embodiment. Figure 4 As shown, the layer information feedback device provided in this embodiment includes:

[0147] A first receiving module 310, configured to receive configuration information of a first communication node;

[0148] A measurement module 320, configured to determine the layer information of the first communication node according to the configuration information;

[0149] The feedback module 330 is configured to feed back the layer information to the first communication node.

[0150] The layer information feedback device of this embodiment feeds back the layer information to the first communication node to indicate the relevant transmission performance of each layer, so that the first communication node can make full use of each layer to make efficient data transmission decisions, thereby improving communication efficiency and reliability.

[0151] In one embodiment, the device further comprises:

[0152] The order determination module is configured to determine the transmission order according to the layer information.

[0153] In one embodiment, the layer information includes: layer reception intensity;

[0154] The transmission order includes at least one of the following: layer reporting order; order of layers in the reporting sequence; layer priority; and layer index number.

[0155] In one embodiment, the layer information includes: layer delay;

[0156] The transmission order includes at least one of the following: layer reporting order; order of layers in the reporting sequence; layer priority; and layer index number.

[0157] In one embodiment, the layer information includes: layer priority;

[0158] The transmission order includes at least one of the following: a layer reporting order; an order of layers in a reporting sequence; and a layer index number.

[0159] In one embodiment, the layer information includes: a layer index number;

[0160] The transmission order includes at least one of: layer reporting order; order of layers in a reporting sequence; and layer priority.

[0161] In one embodiment, the order determination module is specifically used to:

[0162] In the case where the number of layers of the first communication node is at least two, the layers are sorted in ascending order according to the layer information to obtain the transmission order; or,

[0163] When there are at least two layers of the first communication node, the layers are sorted in descending order according to the layer information to obtain the transmission order.

[0164] In one embodiment, the order determination module is specifically used for at least one of the following:

[0165] Determining the transmission order according to the configuration order of the layer index numbers; and,

[0166] The transmission order is determined according to the reporting order of the layer index numbers.

[0167] In one embodiment, the layer information includes: first type information and a layer index number;

[0168] The transmission order includes the reporting order of layer index numbers.

[0169] In one embodiment, the order determination module is specifically used to:

[0170] When there are at least two layers of the first communication node, the layers are sorted in descending order according to the first type of information to obtain a reporting order of the layer index numbers.

[0171] In one embodiment, the first type of information includes at least one of the following: layer receiving strength; layer receiving power; layer signal to interference plus noise ratio; and layer signal to noise ratio.

[0172] In one embodiment, the layer information includes at least one of the following: a column vector of a precoding matrix; a reference signal received power; a reference signal received quality; a layer index number; a layer received strength; a layer priority; and a layer delay.

[0173] In one embodiment, the layer information includes: layer reception intensity;

[0174] The feedback module 330 is specifically used for:

[0175] Report a first preset number of layer information with the highest layer reception strength to the first communication node.

[0176] In one embodiment, the layer information includes: layer delay;

[0177] The feedback module 330 is specifically used for:

[0178] Report a second preset number of layer information with the lowest layer delay to the first communication node.

[0179] In one embodiment, the layer information includes: layer priority;

[0180] The feedback module 330 is specifically used for:

[0181] Report a third preset number of layer information with the highest layer priority to the first communication node.

[0182] In one embodiment, the layer information includes: a layer index number and a layer reception strength;

[0183] The feedback module 330 is specifically used for:

[0184] Report a fourth preset number of layer index numbers having the highest layer reception strength to the first communication node.

[0185] In one embodiment, the layer information includes: a layer index number and a layer delay;

[0186] The feedback module 330 is specifically used for:

[0187] Report a fifth preset number of layer index numbers with the lowest layer delay to the first communication node.

[0188] In one embodiment, the layer information includes: a layer index number and a layer priority;

[0189] The feedback module 330 is specifically used for:

[0190] Report a sixth preset number of layer index numbers with the highest layer priorities to the first communication node.

[0191] In one embodiment, the layer information includes at least one of the following: the layer used by the phase tracking reference signal; the layer used by the positioning reference signal; the beam with the smallest strength; and the antenna port with the smallest strength.

[0192] In one embodiment, the layer information includes: a target layer having set attributes.

[0193] In one embodiment, the feedback module 330 is specifically configured to:

[0194] The target layer with the set attributes is indicated to the first communication node in a bitmap manner.

[0195] In one embodiment, the setting attribute includes at least one of the following:

[0196] Set reception strength; set latency; set interference; and set priority.

[0197] In one embodiment, the bit width of the bitmap is a rank, and the rank is the number of layers of the first communication node.

[0198] In one embodiment, the number of target layers having the set attribute is determined according to the rank;

[0199] The number of target layers with set attributes is less than a rank, and the rank is the number of layers of the first communication node.

[0200] In one embodiment, the feedback module 330 is specifically configured to indicate the target layer with the set attribute to the first communication node in a bit combination state.

[0201] In one embodiment, the bit combination state is represented based on a preset number of bits;

[0202] The number of bit combination states formed by the preset number of bits is greater than or equal to the rank, and the rank is the number of layers of the first communication node.

[0203] In one embodiment, the target layers in the layer information have identical set attributes.

[0204] In one embodiment, the layers in the layer information are identified by the first communication node as having identical set attributes.

[0205] In one embodiment, the layer information is identified by the first communication node as being reported in order of layer reception strength.

[0206] In one embodiment, the layer information includes: layer reception intensity;

[0207] The feedback module 330 is specifically configured to: use the layer with the strongest layer reception strength as the first layer to be reported to the first communication node.

[0208] In one embodiment, the layer information is identified by the first communication node as the first reported layer being the layer with the strongest layer reception strength.

[0209] In one embodiment, the transmission order is configured by the first communication node.

[0210] In one embodiment, the layer information includes the transmission order.

[0211] In one embodiment, the configuration information includes: second type of information;

[0212] The measurement module 320 is specifically used to determine the layer information of the first communication node according to the second type of information, wherein the second type of information includes at least one of the following: codebook type; frequency band; and layer report order configuration item.

[0213] In one embodiment, the layer information includes at least one of the following:

[0214] The inclusion status indicated for the layer with the strongest layer reception strength;

[0215] the inclusion status of the layer indication for the layer with the lowest layer delay; and,

[0216] The inclusion status indicated for the target layer with the set attributes;

[0217] The inclusion status includes: inclusion and non-inclusion.

[0218] In one embodiment, the configuration information includes: third type of information;

[0219] The measurement module 320 is specifically used to: determine the layer information of the first communication node based on the third type of information; wherein the third type of information includes at least one of the following: a layer reporting order configuration item; the layer reporting order configured by the layer reporting order configuration item; the enabling state of the layer reporting order configuration item; and the enabling state of the layer reporting order by the layer reporting order configuration item.

[0220] In one embodiment, the target layer with the set attributes is configured by the first communication node.

[0221] In one embodiment, the target layer with the set attributes is configured by the first communication node, including at least one of the following:

[0222] The set attribute is configured by the first communication node;

[0223] The number of target layers having set attributes is configured by the first communication node; and,

[0224] The number of bits indicating the target layer having the set attribute is configured by the first communication node.

[0225] In one embodiment, the configuration information includes: a first configuration item and a second configuration item, the first configuration item and the second configuration item having an association relationship;

[0226] The first configuration item is configured to configure a target layer with set attributes, and the second configuration item is configured to configure a layer reporting order.

[0227] In one embodiment, the association relationship includes at least one of the following:

[0228] The first configuration item is enabled, and the second configuration item is not enabled;

[0229] The first configuration item is not enabled, and the second configuration item is enabled; and,

[0230] The first configuration item is not enabled, and the second configuration item is not enabled.

[0231] In one embodiment, the configuration information includes at least one of a first configuration item and a second configuration item, wherein the first configuration item is set to configure a target layer with a set attribute, and the second configuration item is set to configure a layer reporting order.

[0232] In one embodiment, the device further comprises:

[0233] The configuration information determination module is configured to determine the configuration information according to the fourth type of information, wherein the fourth type of information includes at least one of the following: a protocol version number; a capability of the current communication node; and a frequency band of the current communication node.

[0234] The layer information feedback device and the layer information feedback method of this embodiment belong to the same inventive concept and have the same beneficial effects. For technical details not fully described in this embodiment, please refer to any of the above embodiments.

[0235] An embodiment of the present application also provides a device for receiving layer information. Figure 5 The structure diagram of a device for receiving layer information provided by an embodiment is shown in FIG. Figure 5 As shown, the layer information receiving device provided in this embodiment includes:

[0236] The transmission module 410 is configured to transmit the configuration information to the second communication node;

[0237] The second receiving module 420 is configured to receive the layer information fed back by the second communication node, where the layer information is determined by the second communication node according to the configuration information.

[0238] The layer information receiving device of this embodiment obtains the relevant transmission performance of each layer by receiving the layer information fed back by the second communication node, and can make full use of each layer to make efficient data transmission decisions, thereby improving communication efficiency and reliability.

[0239] In one embodiment, the device further comprises:

[0240] The decision module is configured to determine a spatial division multiplexing transmission scheme according to the layer information when receiving the layer information fed back by the second communication node.

[0241] In one embodiment, the device further comprises:

[0242] A transmission characteristic determination module is configured to determine the transmission characteristics of a layer based on the layer information when the layer information is received as feedback from the second communication node, and the transmission characteristics include at least one of the following: reference signal reception power; reference signal reception quality; layer delay; layer priority; layer index number; layer reception strength; layer used by phase tracking reference signal; layer used by positioning reference signal; beam with minimum strength; antenna port with minimum strength; and transmission order.

[0243] In one embodiment, the device further comprises:

[0244] The first identification module is configured to identify the target layer with the set attribute in the layer information as having the same set attribute.

[0245] In one embodiment, the device further comprises:

[0246] The second identification module is configured to identify the layer information as being reported in the order of layer reception strength.

[0247] In one embodiment, the device further comprises:

[0248] The third identification module is configured to identify the layer information as the first reported layer as the layer with the strongest layer reception strength.

[0249] In one embodiment, the device further comprises:

[0250] A configuration module, configured to configure at least one of the following: configuration information; set attributes; transmission order of layer information; the number of target layers with set attributes to be fed back or reported in the layer information; the number of bits indicating the target layer in the layer information; a first configuration item; a second configuration item; a second type of information; and a third type of information. Among them, the second type of information includes at least one of the following: codebook type; frequency band; and a layer report order configuration item. The third type of information includes at least one of the following: a layer report order configuration item; a layer report order configured by the layer report order configuration item; an enabled state of the layer report order configuration item; and an enabled state of the layer report order configuration item for the layer report order.

[0251] The receiving device and the receiving method of layer information in this embodiment belong to the same inventive concept and have the same beneficial effects. For technical details not fully described in this embodiment, please refer to any of the above embodiments.

[0252] The embodiment of the present application also provides a communication node. The layer information feedback method can be executed by a layer information feedback device, which can be implemented by software and / or hardware and integrated in the communication node. The layer information receiving method can be executed by a layer information receiving device, which can be implemented by software and / or hardware and integrated in the communication node. The communication node can be a base station, or a user terminal, etc.

[0253] Figure 6 FIG. 1 is a schematic diagram of a communication node structure provided by an embodiment. Figure 6 As shown, a communication node provided in this embodiment includes: a processor 510 and a storage device 520. The processor in the communication node may be one or more, Figure 6 Taking a processor 510 as an example, the processor 510 and the storage device 520 in the communication node may be connected via a bus or other means. Figure 6 Take bus connection as an example

[0254] When the one or more programs are executed by the one or more processors, the one or more processors implement the layer information feedback method or layer information receiving method described in any of the above embodiments.

[0255] The storage device 520 in the communication node is a computer-readable storage medium and can be used to store one or more programs, which can be software programs, computer executable programs, and modules, such as program instructions / modules corresponding to the feedback method of the layer information in the embodiment of the present invention (for example, the attached Figure 4 The modules in the layer information feedback device shown include: receiving module 310, measuring module 320 and feedback module 330). The processor 510 executes various functional applications and data processing of the communication node by running the software programs, instructions and modules stored in the storage device 520, that is, the layer information feedback method or the layer information receiving method in the above method embodiment is implemented.

[0256] The storage device 520 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required for a function; the data storage area can store data created according to the use of the communication node (such as layer information, configuration information, etc. in the above embodiment). In addition, the storage device 520 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the storage device 520 may further include a memory remotely arranged relative to the processor 510, and these remote memories may be connected to the communication node via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0257] Furthermore, when one or more programs included in the above-mentioned communication node are executed by the one or more processors 510, the layer information feedback method or layer information receiving method described in any of the above-mentioned embodiments is implemented.

[0258] The communication node proposed in this embodiment and the layer information feedback method or layer information receiving method proposed in the above embodiments belong to the same inventive concept. The technical details not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as the execution layer information feedback method or layer information receiving method.

[0259] An embodiment of the present application further provides a storage medium comprising computer executable instructions, storing a computer program, and when the computer program is executed by a processor, implementing the layer information feedback method or the layer information receiving method as described in any of the above embodiments.

[0260] Through the above description of the implementation method, the technical personnel in the relevant field can understand that the present application can be implemented by means of software and general hardware, or by hardware. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including multiple instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute the method described in any embodiment of the present application.

[0261] The above description is merely an exemplary embodiment of the present application and is not intended to limit the protection scope of the present application.

[0262] The block diagram of any logic flow in the accompanying drawings of the present application can represent program steps, or can represent interconnected logic circuits, modules and functions, or can represent a combination of program steps and logic circuits, modules and functions. The computer program can be stored on a memory. The memory can have any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (ROM), random access memory (RAM), optical memory device and system (digital versatile disc DVD or CD disc), etc. Computer-readable media may include non-transient storage media. The data processor can be any type suitable for the local technical environment, such as but not limited to a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (FGPA) and a processor based on a multi-core processor architecture.

[0263] By way of exemplary and non-limiting examples, a detailed description of exemplary embodiments of the present application has been provided above. However, various modifications and adjustments to the above embodiments will be apparent to those skilled in the art when considered in conjunction with the accompanying drawings and claims, but will not depart from the scope of the present invention. Therefore, the proper scope of the present invention will be determined according to the claims.

Claims

1. A layer information feedback method, characterized in that: include: receiving configuration information of a first communication node; Determine layer information of the first communication node according to the configuration information; Feedback the layer information to the first communication node; Wherein, the layer information includes: layer delay; The feeding back the layer information to the first communication node includes: Report a second preset number of layer information with the lowest layer delay to the first communication node.

2. The method according to claim 1, characterized in that Also includes: The transmission order is determined according to the layer information.

3. The method according to claim 2, characterized in that The layer information includes: layer reception strength; The transmission order includes at least one of the following: layer reporting order; order of layers in the reporting sequence; layer priority; and layer index number.

4. The method according to claim 2, characterized in that: The layer information includes: a layer index number; The transmission order includes at least one of: layer reporting order; order of layers in a reporting sequence; and layer priority.

5. The method according to claim 4, characterized in that The determining of the transmission order according to the layer information includes at least one of the following: Determining the transmission order according to the configuration order of the layer index numbers; and, The transmission order is determined according to the reporting order of the layer index numbers.

6. The method according to claim 1, characterized in that The layer information includes at least one of the following: a column vector of a precoding matrix; a reference signal received power; a reference signal received quality; a layer index number; a layer received strength; a layer priority; and a layer delay.

7. The method according to claim 1, characterized in that The layer information includes: layer reception strength; The feeding back the layer information to the first communication node includes: Report a first preset number of layer information with the highest layer reception strength to the first communication node.

8. The method according to claim 1, characterized in that The layer information includes: layer priority; The feeding back the layer information to the first communication node includes: Report a third preset number of layer information with the highest layer priority to the first communication node.

9. The method according to claim 1, characterized in that: The layer information includes: a layer index number and a layer receiving strength; The feeding back the layer information to the first communication node includes: Report a fourth preset number of layer index numbers having the highest layer reception strength to the first communication node.

10. The method according to claim 1, characterized in that The layer information includes: a layer index number and a layer delay; The feeding back the layer information to the first communication node includes: Report a fifth preset number of layer index numbers with the lowest layer delay to the first communication node.

11. The method according to claim 1, characterized in that The layer information includes: a layer index number and a layer priority; The feeding back the layer information to the first communication node includes: Report a sixth preset number of layer index numbers with the highest layer priorities to the first communication node.

12. The method according to claim 1, characterized in that The layer information includes at least one of the following: the layer used by the phase tracking reference signal; the layer used by the positioning reference signal; the beam with the smallest strength; and the antenna port with the smallest strength.

13. The method according to claim 1, characterized in that The layer information includes: a target layer with set attributes.

14. The method according to claim 13, characterized in that The setting attributes include at least one of the following: Set reception strength; set latency; set interference; and set priority.

15. The method according to claim 13, characterized in that The number of target layers having set attributes is determined according to the rank; The number of target layers with set attributes is less than a rank, and the rank is the number of layers of the first communication node.

16. The method according to claim 13, characterized in that The target layer in the layer information has the same set attributes.

17. The method according to claim 1, characterized in that The layer information includes: layer reception strength; The feeding back the layer information to the first communication node includes: The layer with the strongest layer reception strength is used as the first layer reported to the first communication node.

18. The method according to claim 1, characterized in that The layer information includes at least one of the following: The inclusion status indicated for the layer with the strongest layer reception strength; the inclusion status of the layer indication for the layer with the lowest layer delay; and, The inclusion status indicated for the target layer with the set attributes; The inclusion status includes: inclusion and non-inclusion.

19. The method according to claim 1, characterized in that The configuration information includes at least one of a first configuration item and a second configuration item, wherein the first configuration item is set to configure a target layer with a set attribute, and the second configuration item is set to configure a layer reporting order.

20. A method for receiving layer information, characterized in that: include: transmitting configuration information to the second communication node; receiving layer information fed back by the second communication node, where the layer information is determined by the second communication node according to the configuration information; Wherein, the layer information includes: layer delay; The layer information fed back by the second communication node includes: The first communication node reports information of a second preset number of layers with the lowest layer delay.

21. The method according to claim 20, characterized in that Also includes: In the case of receiving the layer information fed back by the second communication node, determining a transmission characteristic of the layer according to the layer information, where the transmission characteristic includes at least one of the following: Reference signal received power; Reference signal received quality; Layer delay; Layer priority; layer index number; layer reception strength; The layer used for the phase tracking reference signal; The layer used for the positioning reference signal; The beam with the smallest strength; The antenna port with the smallest strength; and, transmission order.

22. A layer information feedback device, characterized in that: include: A first receiving module, configured to receive configuration information of a first communication node; a measurement module, configured to determine layer information of the first communication node according to the configuration information; A feedback module, configured to feed back the layer information to the first communication node; Wherein, the layer information includes: layer delay; The feedback module is specifically used for: Report a second preset number of layer information with the lowest layer delay to the first communication node.

23. A device for receiving layer information, characterized in that: include: A transmission module, configured to transmit configuration information to the second communication node; A second receiving module is configured to receive layer information fed back by the second communication node, where the layer information is determined by the second communication node according to the configuration information; Wherein, the layer information includes: layer delay; The layer information fed back by the second communication node includes: The first communication node reports information of a second preset number of layers with the lowest layer delay.

24. A communication node, characterized in that: include: one or more processors; a storage device configured to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the layer information feedback method as described in any one of claims 1-19 or the layer information receiving method as described in any one of claims 20-21.

25. A computer-readable storage medium, characterized in that: A computer program is stored, and when the computer program is executed by a processor, the layer information feedback method as described in any one of claims 1 to 19 or the layer information receiving method as described in any one of claims 20 to 21 is implemented.

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