Channel state information report feedback method, apparatuses and storage medium

Abstract

Provided are a channel state information report feedback method, apparatuses, and a storage medium. The channel state information report feedback method comprises: acquiring configuration information, and processing a channel state information (CSI) report according to the configuration information; and sending the CSI report.

Description

Feedback method, device and storage medium for channel state information report

[0001] This disclosure claims priority to Chinese patent application No. 202311295521.X, filed on September 28, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present disclosure relates to the field of communication technology, and in particular to a feedback method, device, and storage medium for channel state information reporting. Background Art

[0003] In the 5G New Radio (NR) system, the base station needs to send a downlink reference signal to the terminal to determine the channel state. After receiving the downlink reference signal, the terminal measures it, generates a channel state information (CSI) report, and sends the CSI report to the base station, which determines the channel state based on the CSI report. The base station can then formulate a corresponding transmission strategy based on the channel state and transmit data, thereby improving data transmission efficiency.

[0004] Summary of the Invention

[0005] In a first aspect, an embodiment of the present disclosure provides a method for feedback of a channel state information report. The feedback method includes:

[0006] Obtain configuration information, process the channel state information (CSI) report according to the configuration information, and send the CSI report.

[0007] In a second aspect, an embodiment of the present disclosure provides a communication device, which includes a processing module and a communication module.

[0008] The processing module is used to obtain configuration information and process the channel state information CSI report according to the configuration information; the communication module is used to send the CSI report.

[0009] In a third aspect, an embodiment of the present disclosure provides another communication device, which includes a processor, which implements the channel state information reporting feedback method of the first aspect when executing a computer program.

[0010] In a fourth aspect, an embodiment of the present disclosure provides a computer-readable storage medium comprising computer instructions, which, when executed, implement the channel state information reporting feedback method of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] To more clearly illustrate the technical solutions of the present disclosure, the following briefly introduces the drawings required for use in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and those skilled in the art can also derive other drawings based on these drawings.

[0012] FIG1 is a schematic diagram of the architecture of a communication system according to some embodiments.

[0013] FIG2 is a schematic flow chart of a channel state information reporting feedback method according to some embodiments.

[0014] FIG3 is a schematic diagram of the structure of a CSI report according to some embodiments.

[0015] FIG4 is a schematic flow chart of another channel state information reporting feedback method according to some embodiments.

[0016] FIG5 is a schematic diagram of CSI reporting priorities according to some embodiments.

[0017] FIG6 is a schematic diagram illustrating another priority of CSI reporting according to some embodiments.

[0018] FIG7 is a schematic diagram of yet another priority of CSI reporting according to some embodiments.

[0019] FIG8 is a schematic diagram of yet another priority of CSI reporting according to some embodiments.

[0020] FIG9 is a schematic diagram of yet another priority of CSI reporting according to some embodiments.

[0021] FIG10 is a schematic diagram of yet another priority of CSI reporting according to some embodiments.

[0022] FIG11 is a schematic diagram of yet another priority of CSI reporting according to some embodiments.

[0023] FIG12 is a schematic diagram of yet another priority of CSI reporting according to some embodiments.

[0024] FIG13 is a schematic diagram of yet another priority of CSI reporting according to some embodiments.

[0025] FIG14 is a schematic diagram of yet another priority of CSI reporting according to some embodiments.

[0026] FIG15 is a schematic diagram of yet another priority of CSI reporting according to some embodiments.

[0027] FIG16 is a schematic diagram illustrating yet another priority of CSI reporting according to some embodiments.

[0028] FIG17 is a schematic diagram of yet another priority of CSI reporting according to some embodiments.

[0029] FIG18 is a schematic diagram illustrating yet another priority of CSI reporting according to some embodiments.

[0030] FIG19 is a schematic diagram illustrating yet another priority of CSI reporting according to some embodiments.

[0031] FIG20 is a schematic diagram of yet another priority of CSI reporting according to some embodiments.

[0032] FIG21 is a schematic diagram of yet another priority of CSI reporting according to some embodiments.

[0033] FIG22 is a schematic diagram illustrating yet another priority of CSI reporting according to some embodiments.

[0034] FIG23 is a schematic diagram of yet another priority of CSI reporting according to some embodiments.

[0035] FIG24 is a schematic diagram of yet another priority of CSI reporting according to some embodiments.

[0036] FIG25 is a schematic diagram of yet another priority of CSI reporting according to some embodiments.

[0037] FIG26 is a schematic diagram illustrating yet another priority of CSI reporting according to some embodiments.

[0038] FIG27 is a schematic diagram of yet another priority of CSI reporting according to some embodiments.

[0039] FIG28 is a schematic diagram illustrating yet another priority of CSI reporting according to some embodiments.

[0040] FIG29 is a schematic diagram illustrating yet another priority of CSI reporting according to some embodiments.

[0041] Figure 30 is a structural diagram of a CSI processing unit according to some embodiments.

[0042] Figure 31 is a structural diagram of another CSI processing unit according to some embodiments.

[0043] FIG32 is a flowchart of another channel state information reporting feedback method according to some embodiments.

[0044] FIG33 is a schematic structural diagram of a communication device according to some embodiments.

[0045] FIG34 is a schematic structural diagram of another communication device according to some embodiments. DETAILED DESCRIPTION

[0046] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present disclosure.

[0047] In the description of this disclosure, unless otherwise specified, " / " means "or". For example, A / B can mean A or B. "And / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: only A, only B, and A and B. In addition, "at least one" means one or more, and "a plurality" means two or more. Expressions such as "first" and "second" do not limit the quantity and execution order, and expressions such as "first" and "second" do not necessarily limit them to be different.

[0048] It should be noted that in this disclosure, expressions such as "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described in this disclosure as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of expressions such as "exemplarily" or "for example" is intended to present the relevant concepts in a detailed manner.

[0049] In some technologies, CSI reports play a critical role in data transmission. With the continuous advancement of communication technologies, the content in CSI reports has become increasingly complex, and the transmission resources required to provide CSI reports have increased, sometimes exceeding transmission resource constraints. Therefore, how to maximize the amount of CSI report content within transmission resource constraints is an urgent issue.

[0050] Based on this, an embodiment of the present disclosure provides a channel state information reporting feedback method, which can be applied to a communication system as shown in Figure 1. Figure 1 shows a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure. As shown in Figure 1, the communication system includes a first communication node 10 and a second communication node 20.

[0051] In a wireless communication scenario, a first communication node 10 and a second communication node 20 communicate via a wireless channel. For example, the first communication node is a terminal and the second communication node is a base station, and the base station and the terminal communicate via a wireless channel. In another example, the first communication node is a terminal and the second communication node is a wireless router, and the wireless router and the terminal communicate via a wireless channel. In another example, the first communication node is a first base station and the second communication node is a second base station, and the first and second base stations communicate via a wireless channel. In another example, the first communication node is a first terminal and the second communication node is a second terminal, and the first and second terminals communicate via a wireless channel. In another example, the first communication node is a repeater and the second communication node is a base station, and the base station and the repeater communicate via a wireless channel. In another example, the first communication node is a terminal and the second communication node is a repeater, and the repeater and the terminal communicate via a wireless channel. In another example, the first communication node is a first repeater and the second communication node is a second repeater, and the first and second repeaters communicate via a wireless channel. In another example, the first communication node is a base station, the second communication node is a satellite, and the satellite and the base station communicate via a wireless channel. In another example, the first communication node is a satellite, the second communication node is a base station, and the base station and the satellite communicate via a wireless channel. In another example, the first communication node is a terminal, the second communication node is a satellite, and the satellite and the terminal communicate via a wireless channel. In another example, the first communication node is a satellite, the second communication node is a terminal, and the terminal and the satellite communicate via a wireless channel. In another example, the first communication node is a ground device, the second communication node is an aircraft, and the aircraft and the ground device communicate via a wireless channel. In another example, the first communication node is a first aircraft, the second communication node is a second aircraft, and the first and second aircraft communicate via a wireless channel.

[0052] In the embodiments of the present disclosure, the first communication node 10 is mainly used as a terminal and the second communication node 20 is used as a base station for description.

[0053] In some embodiments, the second communication node 20 is configured to provide wireless access services to multiple terminals. For example, a base station provides a service coverage area (also referred to as a cell). Terminals that enter this area can communicate with the base station via wireless signals to receive the wireless access services provided by the base station.

[0054] In some embodiments, the second communication node 20 may be a base station or an evolved base station (eNB or eNodeB) in long term evolution (LTE), long term evolution advanced (LTEA), a base station device in a 5G network, or a base station in a future communication system. The base station may include various network-side devices such as various macro base stations, micro base stations, home base stations, wireless remote stations, reconfigurable intelligent surfaces (RIS), routers, and wireless fidelity (WIFI) devices.

[0055] In some embodiments, the first communication node 10 can be a device with wireless transceiver capabilities, which can be deployed on land (including indoors or outdoors, handheld, wearable or vehicle-mounted); the first communication node 10 can also be deployed on the water surface (such as a ship, etc.); the first communication node 10 can also be deployed in the air (for example, on an airplane, a balloon, and a satellite, etc.). The first communication node 10 can be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical care, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. The embodiments of the present disclosure do not limit the application scenarios. The terminal may sometimes also be referred to as a user, user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication device, UE agent or UE device, etc., but the embodiments of the present disclosure are not limited to this.

[0056] The embodiments of the present disclosure can be applied to downlink data transmission, uplink data transmission, and device-to-device data transmission. For downlink data transmission, the transmitting end is the base station, and the corresponding receiving end is the terminal. For uplink data transmission, the transmitting end is the terminal, and the corresponding receiving end is the base station. For device-to-device data transmission, the transmitting end is the terminal, and the corresponding receiving end is also the terminal. The transmitting end and the receiving end in the present disclosure can both include encoding devices and / or decoding devices, so that the information to be sent can be modulated and encoded, and the received encoded information can also be demodulated and decoded, so as to realize information transmission between the transmitting end device and the receiving end device. The embodiments of the present disclosure are not limited to this.

[0057] It should be noted that Figure 1 is only an exemplary framework diagram. The number of devices included in Figure 1 and the names of each device are not restricted. In addition to the devices shown in Figure 1, the communication system may also include other devices (such as core network devices).

[0058] The application scenarios of the embodiments of the present disclosure are not limited. The system architecture and business scenarios described in the embodiments of the present disclosure are intended to more clearly illustrate the technical solutions of the embodiments of the present disclosure and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. It is known to those skilled in the art that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

[0059] Figure 2 shows a schematic flow chart of a channel state information report feedback method provided by the present disclosure. As shown in Figure 2, the channel state information report feedback method is applied to a first communication node and includes the following steps.

[0060] S101. Acquire configuration information, and process a channel state information (CSI) report according to the configuration information.

[0061] The CSI report includes a first part of CSI and a second part of CSI. For example, as shown in FIG3 , the first part of CSI is also called the first part of channel state information (Part 1 CSI), and the second part of CSI is also called the second part of channel state information (Part 2 CSI).

[0062] In some embodiments, as shown in FIG4 , processing the channel state information CSI report according to the configuration information may be implemented as the following steps, for example.

[0063] S1011. Adjust the quantization method configured by the configuration information to obtain an adjusted quantization method.

[0064] Exemplarily, the configuration information may be used to indicate a quantization method for configuring CSI reporting.

[0065] It should be noted that before sending the CSI report, the second part of the CSI report must be precoded. This is converted into a digital signal that can be transmitted or processed to obtain a precoding or precoding matrix. The elements in the precoding or precoding matrix are then quantized into a bit sequence. The precoding consists of multiple elements, each of which can be quantized using different methods.

[0066] Exemplarily, the precoding process may be a codebook process or an artificial intelligence / machine learning model process. The quantization method may be a quantization precision, a quantization bit sequence, or a quantization type. Quantization types include scalar quantization and vector quantization. Scalar quantization types include uniform scalar quantization and non-uniform scalar quantization. In some embodiments, the quantization precision configured in the configuration information is adjusted to obtain an adjusted quantization precision.

[0067] For example, after precoding the CSI report, a precode is obtained. This precode consists of 50 elements. The quantization precision configured in the configuration information is 3 bits per element, resulting in a total overhead of 150 bits. To ensure that the transmission resources can transmit all elements in the precode, the quantization precision of each element in the precode is adjusted to 2 bits per element, resulting in a total overhead of 100 bits.

[0068] In some embodiments, the quantized bit sequence configured by the configuration information is adjusted to obtain an adjusted quantized bit sequence.

[0069] For example, after precoding, the CSI report obtains 1 precode. The quantization precision configured in the configuration information is 3 bits / element. The quantized bit sequence of element A after bit quantization is 101, and the quantized bit sequence of element B after bit quantization is 001. To ensure that the transmission resources can transmit all elements in the precode, the quantized bit sequence of the elements is adjusted. The last bit of the quantized bit sequence corresponding to the elements in the precode is truncated. After adjustment, the quantized bit sequence corresponding to element A is 10, and the quantized bit sequence corresponding to element B is adjusted to 00.

[0070] It should be noted that the quantization method described in this disclosure can be set according to actual circumstances. Taking quantization accuracy as an example, the quantization accuracy can be 3 bits / element or 5 bits / element. The same applies to other quantization methods (such as quantized bit sequences). Furthermore, the quantization method can be configured by the second communication node, or it can be configured by the first communication node, and the detailed configuration information can be reported to the second communication node. This disclosure is not limited to this.

[0071] S1012: Quantize the content of the second part CSI of the CSI report based on the adjusted quantization method, so that the bit overhead of the second part CSI of the CSI report meets the transmission resource restriction requirement.

[0072] For example, taking the example in S1011 as an example, after adjusting the quantization precision, when quantizing the content of the second part of the CSI report, the bit overhead is reduced from the original 150 bits to 100 bits. After adjusting the quantization bit sequence, when quantizing the content of the second part of the CSI report, the bit overhead is reduced from the original 150 bits to 100 bits.

[0073] In this way, by adjusting the quantization method configured by the configuration information, it is ensured that as much content as possible in the CSI report is sent, thereby improving the content integrity of the CSI report.

[0074] S102. Send a CSI report.

[0075] It should be noted that the report content in the CSI report sent by the first communication node to the second communication node is expressed in the form of bits, or in the form of elements represented by bit groups. For example, the report content in the CSI report may be precoding matrix information expressed in bits, or in the form of elements represented by bit groups.

[0076] The CSI report includes the first part CSI and the second part CSI.

[0077] In some embodiments, sending the CSI report may be implemented as the following steps: sending the segments in the second part CSI of the CSI report based on the priorities of the segments in the second part CSI of the CSI report.

[0078] In some embodiments, the priority of a fragment may be determined according to the layer to which the fragment belongs.

[0079] The priority of a segment is determined according to at least one of the following: the layer to which the segment belongs, the layer group to which the segment belongs, the frequency domain information corresponding to the segment, the time domain information corresponding to the segment, the spatial domain information corresponding to the segment, and the quantization method of the segment.

[0080] The priority of the fragments in the layer with lower sequence numbers is higher than the fragments in the layer with higher sequence numbers. For example, as shown in FIG5 , the second part of the CSI in the CSI report includes N layers, and the priority of the fragments in layer 1 is higher than the priority of the fragments in layer 2 and also higher than the priority of the fragments in layer N.

[0081] In some embodiments, the priority of a fragment may be determined based on the layer group to which the fragment belongs.

[0082] The priority of a fragment with a lower sequence number in a layer group is higher than that of a fragment with a higher sequence number in a layer group.

[0083] As an implementation manner, the CSI in the second part of the CSI report may be grouped according to the layers included therein.

[0084] In some embodiments, as shown in FIG6 , the N layers included in the second portion of the CSI in the CSI report can be evenly distributed to obtain M layer groups. Each layer group includes two layers. The priority of the segments in group 1 is higher than the priority of the segments in group 2 and also higher than the priority of the segments in group M.

[0085] In some embodiments, as shown in Figure 7, the N layers included in the second part of the CSI in the CSI report can be distributed unequally to obtain M layer groups. The priority of the segments in group 1 is higher than the priority of the segments in group 2 and also higher than the priority of the segments in group M.

[0086] In some embodiments, the priority of a segment may be determined according to frequency domain information corresponding to the segment.

[0087] For example, frequency domain information is also referred to as a frequency domain unit. The granularity of a frequency domain unit includes at least one of the following: subcarrier, resource element (RE), resource element group (REG), resource block (RB), resource block group (RBG), and sub-band.

[0088] In some embodiments, the frequency domain units may be divided into an even-numbered frequency domain unit group and an odd-numbered frequency domain unit group according to the sequence number of the frequency domain unit. The priority of a segment may be determined based on the group to which the frequency domain unit corresponding to the segment belongs. For example, the priority of a segment corresponding to a frequency domain unit that belongs to an even-numbered frequency domain unit group is higher than the priority of a segment corresponding to a frequency domain unit that belongs to an odd-numbered frequency domain unit group.

[0089] In some embodiments, the frequency domain units may be divided into multiple frequency domain unit groups according to their corresponding serial numbers, and the priority of a segment may be determined according to the frequency domain unit group to which the frequency domain unit corresponding to the segment belongs.

[0090] Exemplarily, each frequency domain unit group may include the same number of frequency domain units, or each frequency domain unit group may also include a different number of frequency domain units. The frequency domain units in each frequency domain unit group may be frequency domain units with continuous sequence numbers, or each frequency domain unit group may also be frequency domain units with discontinuous sequence numbers. The priority of the fragment corresponding to the frequency domain unit with a smaller group sequence number of the frequency domain unit group to which it belongs is higher than the priority of the fragment corresponding to the frequency domain unit with a larger group sequence number of the frequency domain unit group to which it belongs.

[0091] In some embodiments, the priority of a segment may be determined according to the layer group to which the segment belongs and the frequency domain information corresponding to the segment.

[0092] In some embodiments, the priority of the layer grouping to which a fragment belongs is higher than the priority of the frequency domain information corresponding to the fragment, and the priority of a fragment with a lower sequence number in the layer grouping is higher than the priority of a fragment with a higher sequence number in the layer grouping. In the same layer grouping, the priority of a fragment corresponding to a frequency domain unit with a smaller group sequence number in the frequency domain unit group is higher than the priority of a fragment corresponding to a frequency domain unit with a larger group sequence number in the frequency domain unit group.

[0093] For example, as shown in FIG8 , in the arrangement from left to right, the priority of the fragments in the frequency domain unit group 1 of layer group 1 is higher than the priority of the fragments in the frequency domain unit group 2 of layer group 1, and the priority of the fragments in the frequency domain unit group 2 of layer group 1 is higher than the priority of the fragments in the frequency domain unit group M1 of layer group 1. In the arrangement from top to bottom, the priority of the fragments in the frequency domain unit group 1 of layer group 1 is higher than the priority of the fragments in the frequency domain unit group 1 of layer group 2. The fragments in the frequency domain unit group 1 of layer group 1 have the highest priority, and the frequency domain unit group M1 of layer group 2 has the highest priority. P The fragments in have the lowest priority.

[0094] It should be noted that, in the fragment priority diagram shown in FIG8 , the priority of the row to which the fragment belongs is higher than the priority of the column to which the fragment belongs. For example, the priority of the fragment in the frequency domain unit group M1 of layer group 1 is higher than the priority of the fragment in the frequency domain unit group 1 of layer group 2. Alternatively, the priority of the column to which the fragment belongs is higher than the priority of the row to which the fragment belongs. For example, the priority of the fragment in the frequency domain unit group 1 of layer group P is higher than the priority of the fragment in the frequency domain unit group 2 of layer group 1.

[0095] In FIG8 , the priority of a segment is determined by combining the layer grouping to which the segment belongs and the frequency domain information corresponding to the segment, which is also described as a two-dimensional determination method or a multi-dimensional determination method. In the embodiments provided by the present disclosure, the priority arrangement in the two-dimensional determination method shown in FIG8 and the multi-dimensional determination methods such as the one-dimensional determination method, the two-dimensional determination method, the three-dimensional determination method, and the three-dimensional determination method in other embodiments can be set according to actual conditions and is not limited to the priority arrangement described in the embodiments provided by the present disclosure. In this regard, the present disclosure does not limit this.

[0096] In some embodiments, the priority of the frequency domain information corresponding to a segment is higher than the priority of the layer group to which the segment belongs. The priority of a segment corresponding to a frequency domain unit with a smaller group number of the frequency domain unit group to which it belongs is higher than the priority of a segment corresponding to a frequency domain unit with a larger group number of the frequency domain unit group to which it belongs. In the same frequency domain unit group, the priority of a segment with a lower layer group number is higher than that of a segment with a higher layer group number.

[0097] For example, as shown in FIG9 , in the arrangement from left to right, the priority of the segments in the frequency domain unit group 1 of layer group 1 is higher than the priority of the segments in the frequency domain unit group 1 of layer group 2, and the priority of the segments in the frequency domain unit group 1 of layer group 2 is higher than the priority of the segments in the frequency domain unit group 1 of layer group P. In the arrangement from top to bottom, the priority of the segments in the frequency domain unit group 1 of layer group 1 is higher than the priority of the segments in the frequency domain unit group 2 of layer group 1, and the priority of the segments in the frequency domain unit group 2 of layer group 1 is higher than the priority of the segments in the frequency domain unit group M1 of layer group 1. The segments in the frequency domain unit group 1 of layer group 1 have the highest priority, and the frequency domain unit group M1 of layer group P has the highest priority. P The fragments in have the lowest priority.

[0098] In some embodiments, the priority of the layer group to which a fragment belongs is higher than the priority of the frequency domain information corresponding to the fragment, and the priority of a fragment with a lower sequence number in the layer group is higher than the priority of a fragment with a higher sequence number in the layer group. In the same layer group, the priority of a fragment corresponding to a frequency domain unit grouped as an even-numbered frequency domain unit group is higher than the priority of a fragment corresponding to a frequency domain unit grouped as an odd-numbered frequency domain unit group.

[0099] Exemplarily, as shown in Figure 10, the priority of the fragments in the even frequency domain unit group of layer group 1 is higher than the priority of the fragments in the odd frequency domain unit group of layer group 1, the priority of the fragments in the odd frequency domain unit group of layer group 1 is higher than the priority of the fragments in the even frequency domain unit group of layer group 2, the priority of the fragments in the even frequency domain unit group of layer group 2 is higher than the priority of the fragments in the odd frequency domain unit group of layer group 2, the priority of the fragments in the odd frequency domain unit group of layer group 2 is higher than the priority of the fragments in the even frequency domain unit group of layer group P, and the priority of the fragments in the even frequency domain unit group of layer group P is higher than the priority of the fragments in the odd frequency domain unit group of layer group P.

[0100] In some embodiments, the priority of the frequency domain information corresponding to a fragment is higher than the priority of the layer group to which the fragment belongs, and the priority of the fragment corresponding to the frequency domain unit of an even-numbered frequency domain unit group is higher than the priority of the fragment corresponding to the frequency domain unit of an odd-numbered frequency domain unit group. In an even-numbered frequency domain unit group, the priority of a fragment with a lower sequence number in the layer group is higher than the priority of a fragment with a higher sequence number in the layer group.

[0101] Exemplarily, as shown in Figure 11, the priority of the fragments in the even frequency domain unit group of layer group 1 is higher than the priority of the fragments in the even frequency domain unit group of layer group 2, the priority of the fragments in the even frequency domain unit group of layer group 2 is higher than the priority of the fragments in the even frequency domain unit group of layer group P, the priority of the fragments in the even frequency domain unit group of layer group P is higher than the priority of the fragments in the odd frequency domain unit group of layer group 1, the priority of the fragments in the odd frequency domain unit group of layer group 1 is higher than the priority of the fragments in the odd frequency domain unit group of layer group 2, and the priority of the fragments in the odd frequency domain unit group of layer group 2 is higher than the priority of the fragments in the odd frequency domain unit group of layer group P.

[0102] In some embodiments, the priority of a segment may be determined based on spatial information corresponding to the segment.

[0103] Exemplarily, the spatial information is also referred to as a spatial unit, which includes the number of antenna ports, the number of antennas, and the polarization direction.

[0104] In some embodiments, the spatial domain units may be divided into a polarization direction 1 spatial domain unit group and a polarization direction 2 spatial domain unit group based on the polarization direction of the antenna in the spatial domain unit. The priority of a segment may be determined based on the group to which the spatial domain unit corresponding to the segment belongs. For example, the priority of a segment corresponding to a spatial domain unit grouped as the polarization direction 1 spatial domain unit group is higher than the priority of a segment corresponding to a spatial domain unit grouped as the polarization direction 2 spatial domain unit group.

[0105] In some embodiments, the spatial units may be divided into a plurality of spatial unit groups according to their corresponding sequence numbers. The priority of a segment may be determined according to the spatial unit group to which the spatial unit corresponding to the segment belongs.

[0106] Exemplarily, each spatial unit group may include the same number of spatial units, or each spatial unit group may include a different number of spatial units. The spatial units in each spatial unit group may be spatial units with consecutive sequence numbers, or each spatial unit group may be spatial units with discontinuous sequence numbers. The priority of the fragment corresponding to the spatial unit with a smaller group sequence number in the spatial unit group to which it belongs is higher than the priority of the fragment corresponding to the spatial unit with a larger group sequence number in the spatial unit group to which it belongs.

[0107] In some embodiments, the priority of a segment may be determined according to the layer group to which the segment belongs and the spatial information corresponding to the segment.

[0108] In some embodiments, the priority of the layer group to which a fragment belongs is higher than the priority of the spatial information corresponding to the fragment, and the priority of a fragment with a lower sequence number in the layer group is higher than the priority of a fragment with a higher sequence number in the layer group. Within the same layer group, the priority of a fragment corresponding to a spatial unit with a smaller group sequence number in the spatial unit group is higher than the priority of a fragment corresponding to a spatial unit with a larger group sequence number in the spatial unit group.

[0109] For example, as shown in FIG12 , in the arrangement from left to right, the priority of the fragment in the spatial unit group 1 of layer group 1 is higher than the priority of the fragment in the spatial unit group 2 of layer group 1, and the priority of the fragment in the spatial unit group 2 of layer group 1 is higher than the priority of the fragment in the spatial unit group M'1 of layer group 1. In the arrangement from top to bottom, the priority of the fragment in the spatial unit group 1 of layer group 1 is higher than the priority of the fragment in the spatial unit group 1 of layer group 2, and the priority of the fragment in the spatial unit group 1 of layer group 2 is higher than the priority of the fragment in the spatial unit group 1 of layer group P'. The fragment in the spatial unit group 1 of layer group 1 has the highest priority, and the spatial unit group M' of layer group P' has the highest priority. P′ The fragments in have the lowest priority.

[0110] In some embodiments, the priority of the spatial information corresponding to a segment is higher than the priority of the layer group to which the segment belongs. A segment corresponding to a spatial unit with a smaller group number in the spatial unit group to which it belongs has a higher priority than a segment corresponding to a spatial unit with a larger group number in the spatial unit group to which it belongs. Within the same spatial unit group, a segment with a lower layer group number has a higher priority than a segment with a higher layer group number in the same spatial unit group.

[0111] For example, as shown in FIG13 , in the arrangement from left to right, the priority of the fragment in the spatial unit group 1 of layer group 1 is higher than the priority of the fragment in the spatial unit group 1 of layer group 2, and the priority of the fragment in the spatial unit group 1 of layer group 2 is higher than the priority of the fragment in the spatial unit group 1 of layer group P'. In the arrangement from top to bottom, the priority of the fragment in the spatial unit group 1 of layer group 1 is higher than the priority of the fragment in the spatial unit group 2 of layer group 1, and the priority of the fragment in the spatial unit group 2 of layer group 1 is higher than the priority of the fragment in the spatial unit group M'1 of layer group 1. The fragment in the spatial unit group 1 of layer group 1 has the highest priority, and the spatial unit group M' of layer group P' has the highest priority. P The fragment in ′ has the lowest priority.

[0112] In some embodiments, the priority of the layer group to which a fragment belongs is higher than the priority of the spatial domain information corresponding to the fragment, and the priority of a fragment with a lower sequence number in the layer group is higher than the priority of a fragment with a higher sequence number in the layer group. Within the same layer group, the priority of a fragment corresponding to a spatial domain unit grouped in polarization direction 1 is higher than the priority of a fragment corresponding to a spatial domain unit grouped in polarization direction 2.

[0113] Exemplarily, as shown in Figure 14, the priority of the fragments in the polarization direction 1 spatial domain unit group of layer group 1 is higher than the priority of the fragments in the polarization direction 2 spatial domain unit group of layer group 1, the priority of the fragments in the polarization direction 2 spatial domain unit group of layer group 1 is higher than the priority of the fragments in the polarization direction 1 spatial domain unit group of layer group 2, the priority of the fragments in the polarization direction 1 spatial domain unit group of layer group 2 is higher than the priority of the fragments in the polarization direction 2 spatial domain unit group of layer group 2, the priority of the fragments in the polarization direction 2 spatial domain unit group of layer group 2 is higher than the priority of the fragments in the polarization direction 1 spatial domain unit group of layer group P', and the priority of the fragments in the polarization direction 1 spatial domain unit group of layer group P' is higher than the priority of the fragments in the polarization direction 2 spatial domain unit group of layer group P'.

[0114] In some embodiments, the priority of the spatial domain information corresponding to a segment is higher than the priority of the layer group to which the segment belongs. The priority of a segment corresponding to a spatial domain unit grouped in the Polarization Direction 1 spatial domain unit group is higher than the priority of a segment corresponding to a spatial domain unit grouped in the Polarization Direction 2 spatial domain unit group. Within the Polarization Direction 1 spatial domain unit group, the priority of a segment with a lower sequence number in the layer group to which it belongs is higher than the priority of a segment with a higher sequence number in the layer group to which it belongs.

[0115] For example, as shown in Figure 15, the priority of the fragments in the polarization direction 1 spatial domain unit group of layer group 1 is higher than the priority of the fragments in the polarization direction 1 spatial domain unit group of layer group 2, the priority of the fragments in the polarization direction 1 spatial domain unit group of layer group 2 is higher than the priority of the fragments in the polarization direction 1 spatial domain unit group of layer group P', the priority of the fragments in the polarization direction 1 spatial domain unit group of layer group P' is higher than the priority of the fragments in the polarization direction 2 spatial domain unit group of layer group 1, the priority of the fragments in the polarization direction 2 spatial domain unit group of layer group 2 is higher than the priority of the fragments in the polarization direction 2 spatial domain unit group of layer group 2, and the priority of the fragments in the polarization direction 2 spatial domain unit group of layer group 2 is higher than the priority of the fragments in the polarization direction 2 spatial domain unit group of layer group P'.

[0116] In some embodiments, the priority of a segment may be determined based on the temporal information corresponding to the segment.

[0117] Exemplarily, the time domain information is also referred to as a time domain unit. The granularity of the time domain unit includes at least one of the following: orthogonal frequency-division multiplexing (OFDM) symbol, slot, slot block, subframe, frame, and specific time period.

[0118] In some embodiments, the time domain units may be divided into an even-numbered time domain unit group and an odd-numbered time domain unit group according to the sequence number of the time domain unit, and the priority of the segment may be determined according to the group to which the time domain unit corresponding to the segment belongs. For example, the priority of the segment corresponding to the time domain unit belonging to the odd-numbered time domain unit group is higher than the priority of the segment corresponding to the time domain unit belonging to the even-numbered time domain unit group.

[0119] In some embodiments, the time domain units may be divided into a plurality of time domain unit groups according to their corresponding sequence numbers. The priority of a segment may be determined according to the time domain unit group to which the time domain unit corresponding to the segment belongs.

[0120] Exemplarily, each time domain unit group may include the same number of time domain units, or each time domain unit group may include a different number of time domain units. The time domain units in each time domain unit group may be time domain units with consecutive sequence numbers, or each time domain unit group may be time domain units with discontinuous sequence numbers. The priority of the fragment corresponding to the time domain unit with a smaller group sequence number in the time domain unit group to which it belongs is higher than the priority of the fragment corresponding to the time domain unit with a larger group sequence number in the time domain unit group to which it belongs.

[0121] In some embodiments, the priority of a segment may be determined according to the layer group to which the segment belongs and the temporal information corresponding to the segment.

[0122] In some embodiments, the priority of the layer grouping in which a fragment is located is higher than the priority of the time domain information corresponding to the fragment, and the priority of a fragment with a lower sequence number in the layer grouping is higher than the priority of a fragment with a higher sequence number in the layer grouping. In the same layer grouping, the priority of a fragment corresponding to a time domain unit with a smaller group sequence number in the time domain unit group is higher than the priority of a fragment corresponding to a time domain unit with a larger group sequence number in the time domain unit group.

[0123] For example, as shown in FIG16 , in the arrangement from left to right, the priority of the fragments in layer group 1 time domain unit group 1 is higher than the priority of the fragments in layer group 1 time domain unit group 2, and the priority of the fragments in layer group 1 time domain unit group 2 is higher than the priority of the fragments in layer group 1 time domain unit group M″1. In the arrangement from top to bottom, the priority of the fragments in layer group 1 time domain unit group 1 is higher than the priority of the fragments in layer group 2 time domain unit group 1, and the priority of the fragments in layer group 2 time domain unit group 1 is higher than the priority of the fragments in layer group P″ time domain unit group 1. The fragments in layer group 1 time domain unit group 1 have the highest priority, and layer group P″ time domain unit group M″ has the highest priority. P＂ The fragments in have the lowest priority.

[0124] In some embodiments, the priority of the time domain information corresponding to a segment is higher than the priority of the layer group to which the segment belongs. The priority of a segment corresponding to a time domain unit with a smaller group number in the time domain unit group is higher than the priority of a segment corresponding to a time domain unit with a larger group number in the time domain unit group. Within the same time domain unit group, the priority of a segment with a lower layer group number is higher than the priority of a segment with a higher layer group number.

[0125] For example, as shown in FIG17 , in the arrangement from left to right, the priority of the fragments in layer group 1 time domain unit group 1 is higher than the priority of the fragments in layer group 2 time domain unit group 1, and the priority of the fragments in layer group 2 time domain unit group 1 is higher than the priority of the fragments in layer group P″ time domain unit group 1. In the arrangement from top to bottom, the priority of the fragments in layer group 1 time domain unit group 1 is higher than the priority of the fragments in layer group 1 time domain unit group 2, and the priority of the fragments in layer group 1 time domain unit group 2 is higher than the priority of the fragments in layer group 1 time domain unit group M″1. The fragments in layer group 1 time domain unit group 1 have the highest priority, and layer group P″ time domain unit group M″ has the highest priority. P＂ The fragments in have the lowest priority.

[0126] In some embodiments, the priority of the layer group to which a fragment belongs is higher than the priority of the time domain information corresponding to the fragment, and the priority of a fragment with a lower sequence number in the layer group is higher than the priority of a fragment with a higher sequence number in the layer group. In the same layer group, the priority of a fragment corresponding to a time domain unit grouped in an odd-numbered time domain unit group is higher than the priority of a fragment corresponding to a time domain unit grouped in an even-numbered time domain unit group.

[0127] For example, as shown in Figure 18, the priority of the fragments in the odd time domain unit group of layer group 1 is higher than the priority of the fragments in the even time domain unit group of layer group 1, the priority of the fragments in the even time domain unit group of layer group 1 is higher than the priority of the fragments in the odd time domain unit group of layer group 2, the priority of the fragments in the odd time domain unit group of layer group 2 is higher than the priority of the fragments in the even time domain unit group of layer group 2, the priority of the fragments in the even time domain unit group of layer group 2 is higher than the priority of the fragments in the odd time domain unit group of layer group P", and the priority of the fragments in the odd time domain unit group of layer group P is higher than the priority of the fragments in the even time domain unit group of layer group P.

[0128] In some embodiments, the priority of the time domain information corresponding to the segment is higher than the priority of the layer group to which the segment belongs, and the priority of the segment corresponding to the time domain unit grouped in the even-numbered time domain unit group is higher than the priority of the segment corresponding to the time domain unit grouped in the odd-numbered time domain unit group. In an even-numbered time domain unit group or an odd-numbered time domain unit group, the priority of the segment with a lower sequence number in the layer group is higher than the priority of the segment with a higher sequence number in the layer group.

[0129] For example, as shown in Figure 19, the priority of the fragments in the odd time domain unit group of layer group 1 is higher than the priority of the fragments in the odd time domain unit group of layer group 2, the priority of the fragments in the odd time domain unit group of layer group 2 is higher than the priority of the fragments in the odd time domain unit group of layer group P", the priority of the fragments in the odd time domain unit group of layer group P" is higher than the priority of the fragments in the even time domain unit group of layer group 1, the priority of the fragments in the even time domain unit group of layer group 1 is higher than the priority of the fragments in the even time domain unit group of layer group 2, and the priority of the fragments in the even time domain unit group of layer group 2 is higher than the priority of the fragments in the even time domain unit group of layer group P".

[0130] In some embodiments, the priority of a segment may be determined according to the layer group to which the segment belongs, frequency domain information corresponding to the segment, and time domain information corresponding to the segment.

[0131] In some embodiments, the priority of the time domain information corresponding to a segment is higher than the priority of the layer grouping to which the segment belongs, and the priority of the layer grouping to which the segment belongs is higher than the priority of the frequency domain information corresponding to the segment. The priority of a segment corresponding to a time domain unit with a smaller group number in the time domain unit group to which it belongs is higher than the priority of a segment corresponding to a time domain unit with a larger group number in the time domain unit group to which it belongs, and the priority of a segment with a lower group number in the layer group to which it belongs is higher than the priority of a segment with a higher group number in the layer group to which it belongs. In the same layer grouping, the priority of a segment corresponding to a frequency domain unit with a smaller group number in the frequency domain unit group to which it belongs is higher than the priority of a segment corresponding to a frequency domain unit with a larger group number in the frequency domain unit group to which it belongs.

[0132] For example, as shown in Figure 20, in the arrangement from front to back, the priority of the segments in time domain unit group 1 layer group 1 frequency domain unit group 1 is higher than the priority of the segments in time domain unit group 2 layer group 1 frequency domain unit group 1, and the priority of the segments in time domain unit group 2 layer group 1 frequency domain unit group 1 is higher than the priority of the segments in time domain unit group M layer group 1 frequency domain unit group 1. In the arrangement from left to right, the priority of the segments in time domain unit group 1 layer group 1 frequency domain unit group 1 is higher than the priority of the segments in time domain unit group 1 layer group 1 frequency domain unit group 2, and the priority of the segments in time domain unit group 1 layer group 1 frequency domain unit group 2 is higher than the priority of the segments in time domain unit group 1 layer group 1 frequency domain unit group G1. From top to bottom, the priority of the fragments in time domain unit group 1, layer group 1 and frequency domain unit group 1 is higher than the priority of the fragments in time domain unit group 1, layer group 2 and frequency domain unit group 1, and the priority of the fragments in time domain unit group 1, layer group 2 and frequency domain unit group 1 is higher than the priority of the fragments in time domain unit group 1, layer group P and frequency domain unit group 1. The fragments in time domain unit group 1, layer group 1 and frequency domain unit group 1 have the highest priority, and time domain unit group M, layer group P and frequency domain unit group G have the highest priority. P The fragments in have the lowest priority.

[0133] In some embodiments, the priority of the time domain information corresponding to the segment is higher than the priority of the frequency domain information corresponding to the segment, and the priority of the frequency domain information corresponding to the segment is higher than the priority of the layer grouping in which the segment is located. The priority of the segment corresponding to the time domain unit with a smaller group number of the time domain unit group is higher than the priority of the segment corresponding to the time domain unit with a larger group number of the time domain unit group, the priority of the segment corresponding to the frequency domain unit with a smaller group number of the frequency domain unit group is higher than the priority of the segment corresponding to the frequency domain unit with a larger group number of the frequency domain unit group, and in the same frequency domain unit group, the priority of the segment with a lower layer grouping number is higher than the priority of the segment with a higher layer grouping number.

[0134] For example, as shown in FIG21 , in the arrangement from front to back, the priority of the segments in time domain unit group 1, layer group 1, and frequency domain unit group 1 is higher than the priority of the segments in time domain unit group 2, layer group 1, and frequency domain unit group 1, and the priority of the segments in time domain unit group 2, layer group 1, and frequency domain unit group 1 is higher than the priority of the segments in time domain unit group M, layer group 1, and frequency domain unit group 1. In the arrangement from left to right, the priority of the segments in time domain unit group 1, layer group 1, and frequency domain unit group 1 is higher than the priority of the segments in time domain unit group 1, layer group 2, and frequency domain unit group 1 is higher than the priority of the segments in time domain unit group 1, layer group 2, and frequency domain unit group 1. In the arrangement from top to bottom, the priority of the segments in time domain unit group 1, layer group 1, and frequency domain unit group 1 is higher than the priority of the segments in time domain unit group 1, layer group 1, and frequency domain unit group 2. The priority of the fragments in time domain unit group 1, layer group 1 and frequency domain unit group 1 is the highest, time domain unit group M, layer group P and frequency domain unit group G. P The fragments in have the lowest priority.

[0135] In some embodiments, the priority of the time domain information corresponding to the segment is higher than the priority of the frequency domain information corresponding to the segment, and the priority of the frequency domain information corresponding to the segment is higher than the priority of the layer grouping to which the segment belongs. The priority of the segment corresponding to the time domain unit with a smaller group number of the time domain unit group is higher than the priority of the segment corresponding to the time domain unit with a larger group number of the time domain unit group to which it belongs, and the priority of the segment corresponding to the frequency domain unit with an even-numbered frequency domain unit group is higher than the priority of the segment corresponding to the frequency domain unit with an odd-numbered frequency domain unit group to which it belongs. In an even-numbered time domain unit group or an odd-numbered time domain unit group, the priority of the segment with a lower layer grouping number is higher than the priority of the segment with a higher layer grouping number.

[0136] In some embodiments, the priority of a segment may be determined according to the layer group to which the segment belongs, spatial information corresponding to the segment, and temporal information corresponding to the segment.

[0137] In some embodiments, the priority of the temporal information corresponding to a segment is higher than the priority of the layer grouping to which the segment belongs, and the priority of the layer grouping to which the segment belongs is higher than the priority of the spatial information corresponding to the segment. The priority of a segment corresponding to a temporal unit with a smaller group number in the temporal unit group to which it belongs is higher than the priority of a segment corresponding to a temporal unit with a larger group number in the temporal unit group to which it belongs. The priority of a segment with a lower group number in the layer group to which it belongs is higher than the priority of a segment with a higher group number in the layer group to which it belongs. Within the same layer grouping, the priority of a segment corresponding to a spatial unit with a smaller group number in the spatial unit group to which it belongs is higher than the priority of a segment corresponding to a spatial unit with a larger group number in the spatial unit group to which it belongs.

[0138] 22 , in the arrangement from front to back, the priority of the segments in time domain unit group 1, layer group 1, and spatial domain unit group 1 is higher than the priority of the segments in time domain unit group 2, layer group 1, and spatial domain unit group 1, and the priority of the segments in time domain unit group 2, layer group 1, and spatial domain unit group 1 is higher than the priority of the segments in time domain unit group M, layer group 1, and spatial domain unit group 1. In the arrangement from left to right, the priority of the segments in time domain unit group 1, layer group 1, and spatial domain unit group 1 is higher than the priority of the segments in time domain unit group 1, layer group 1, and spatial domain unit group 2, and the priority of the segments in time domain unit group 1, layer group 1, and spatial domain unit group 2 is higher than the priority of the segments in time domain unit group 1, layer group 1, and spatial domain unit group H1. From top to bottom, the priority of the segments in time domain unit group 1, layer group 1 and spatial domain unit group 1 is higher than the priority of the segments in time domain unit group 1, layer group 2 and spatial domain unit group 1. The priority of the segments in time domain unit group 1, layer group 2 and spatial domain unit group 1 is higher than the priority of the segments in time domain unit group 1, layer group P and spatial domain unit group 1. The segments in time domain unit group 1, layer group 1 and spatial domain unit group 1 have the highest priority, time domain unit group M, layer group P and spatial domain unit group H P The fragments in have the lowest priority.

[0139] In some embodiments, the priority of the temporal information corresponding to a segment is higher than the priority of the spatial information corresponding to the segment, and the priority of the spatial information corresponding to the segment is higher than the priority of the layer group to which the segment belongs. The priority of a segment corresponding to a temporal unit with a smaller group number in the temporal unit group to which it belongs is higher than the priority of a segment corresponding to a temporal unit with a larger group number in the temporal unit group to which it belongs. The priority of a segment corresponding to a spatial unit with a smaller group number in the spatial unit group to which it belongs is higher than the priority of a segment corresponding to a spatial unit with a larger group number in the spatial unit group to which it belongs. Within the same spatial unit group, the priority of a segment corresponding to a lower layer group number is higher than the priority of a segment corresponding to a higher layer group number.

[0140] 23 , in the arrangement from front to back, the priority of the segments in time domain unit group 1, layer group 1, and spatial domain unit group 1 is higher than the priority of the segments in time domain unit group 2, layer group 1, and spatial domain unit group 1, and the priority of the segments in time domain unit group 2, layer group 1, and spatial domain unit group 1 is higher than the priority of the segments in time domain unit group M, layer group 1, and spatial domain unit group 1. In the arrangement from left to right, the priority of the segments in time domain unit group 1, layer group 1, and spatial domain unit group 1 is higher than the priority of the segments in time domain unit group 1, layer group 2, and spatial domain unit group 1, and the priority of the segments in time domain unit group 1, layer group 2, and spatial domain unit group 1 is higher than the priority of the segments in time domain unit group 1, layer group P, and spatial domain unit group 1. From top to bottom, the priority of the segments in time domain unit group 1, layer group 1, and spatial domain unit group 1 is higher than the priority of the segments in time domain unit group 1, layer group 1, and spatial domain unit group 2. The priority of the segments in time domain unit group 1, layer group 1, and spatial domain unit group 2 is higher than the priority of the segments in time domain unit group 1, layer group 1, and spatial domain unit group H1. The segments in time domain unit group 1, layer group 1, and spatial domain unit group 1 have the highest priority, and time domain unit group M, layer group P, and spatial domain unit group H have the highest priority. P The fragments in have the lowest priority.

[0141] In some embodiments, the priority of the time domain information corresponding to a segment is higher than the priority of the spatial domain information corresponding to the segment, and the priority of the spatial domain information corresponding to a segment is higher than the priority of the layer group to which the segment belongs. The priority of a segment corresponding to a time domain unit with a smaller group number in the time domain unit group is higher than the priority of a segment corresponding to a time domain unit with a larger group number in the time domain unit group to which it belongs. The priority of a segment corresponding to a spatial domain unit group grouped as Polarization Direction 1 is higher than the priority of a segment corresponding to a spatial domain unit group grouped as Polarization Direction 2. In the Polarization Direction 1 spatial domain unit group or the Polarization Direction 2 spatial domain unit group, the priority of a segment corresponding to a lower layer group number is higher than the priority of a segment corresponding to a higher layer group number in the layer group to which it belongs.

[0142] In some embodiments, the priority of a segment may be determined based on a quantization method of the segment.

[0143] For example, the second part CSI in the CSI report includes a segment that may be a precoding / precoding matrix obtained by processing by a CSI processing unit. The CSI processing unit may process the precoding elements in the segment into a bit sequence by using a codebook processing method and an artificial intelligence / machine learning model processing method.

[0144] The quantization mode includes the quantization type and / or quantization precision. The quantization type includes scalar quantization type and vector quantization type. The scalar quantization type includes uniform scalar quantization type and non-uniform scalar quantization type.

[0145] In some embodiments, the priority of a segment may be determined according to the quantization type of the segment.

[0146] Exemplarily, the priority of a segment whose quantization type is a vector quantization type is higher than the priority of a segment whose quantization type is a non-uniform scalar quantization type, and the priority of a segment whose quantization type is a non-uniform scalar quantization type is higher than the priority of a segment whose quantization type is a uniform scalar quantization type; or, the priority of a segment whose quantization type is a vector quantization type is higher than the priority of a segment whose quantization type is a uniform scalar quantization type, and the priority of a segment whose quantization type is a uniform scalar quantization type is higher than the priority of a segment whose quantization type is a non-uniform scalar quantization type; or, the priority of a segment whose quantization type is a non-uniform scalar quantization type is higher than the priority of a segment whose quantization type is a uniform scalar quantization type, and the priority of a segment whose quantization type is a vector quantization type; or, the priority of a segment whose quantization type is a uniform scalar quantization type is higher than the priority of a segment whose quantization type is a non-uniform scalar quantization type, and the priority of a segment whose quantization type is a non-uniform scalar quantization type is higher than the priority of a segment whose quantization type is a vector quantization type.

[0147] In some embodiments, the priority of a segment may be determined based on the quantization precision of the segment. The quantization precision is the number of quantization bits of the pre-coded elements in the segment.

[0148] It is understandable that the higher the quantization accuracy, the higher the required quantization bit overhead. When the precoding element value in the segment is small, using a higher quantization accuracy may cause unnecessary quantization bit overhead. Therefore, it is possible to consider quantizing it with a lower quantization accuracy, and the quantization error will not be too large. In order to reduce the quantization bit overhead, the quantization accuracy of the segment is set to be positively correlated with the precoding element value in the segment. The smaller the precoding element value in the segment, the smaller the quantization accuracy, and the higher the precoding element value in the segment, the higher the quantization accuracy. The priority of the segment with high quantization accuracy is higher than that of the segment with low quantization accuracy.

[0149] For example, after the CSI report is processed by the CSI processing unit, the second part of the CSI in the CSI report includes 50 segments, 25 segments have a quantization precision of 3 bits, and 25 segments have a quantization precision of 1 bit. The priority of the 25 segments with a quantization precision of 3 bits is higher than the priority of the 25 segments with a quantization precision of 1 bit.

[0150] It should be noted that the quantized pattern needs to be fed back to the base station in the form of a bitmap for subsequent dequantization. Its overhead is equal to the number of elements in the CSI report. The bitmap is used to indicate the position of low / high quantization precision elements. For example, taking the elements in the CSI report as 1001110001..01 (50 bits), 1 indicates the element position of low / high quantization precision, and 0 indicates the element position of high / low quantization precision.

[0151] In some embodiments, the priority of a segment is determined according to the CSI report to which the segment belongs or the processing model of the precoding information in the CSI report.

[0152] For example, different parts of the CSI report or precoded information in the CSI report may be obtained using different artificial intelligence / machine learning processing models. For example, the processing model may be a combination of a layer common model and a rank common model (layer common-rank common), a combination of a layer common model and a rank specific model (layer common-rank specific), a combination of a layer specific model and a rank common model (layer specific-rank common), a layer common model, a rank specific model, and a rank common model.

[0153] As another example, the priority of the precoding information in the CSI report or CSI report whose processing model is the Layer common-Rank common model, the Layer common-Rank specific model and the Layer specific-Rank common model is higher than the priority of the precoding information in the CSI report or CSI report whose processing model is the Rank specific model or the Rank common model, that is, the priority of the segment of the precoding information in the CSI report or CSI report whose processing model is the Layer common-Rank common model, the Layer common-Rank specific model and the Layer specific-Rank common model is higher than the priority of the segment of the precoding information in the CSI report or CSI report whose processing model is the Rank specific model or the Rank common model; or the priority of the precoding information in the CSI report or CSI report whose processing model is the Rank specific model or the Rank common model is higher than the priority of the precoding information in the CSI report or CSI report whose processing model is the Layer common-Rank common model, the Layer common-Rank specific model and the Layer specific-Rank common model, that is, the priority of the segment of the precoding information in the CSI report or CSI report whose processing model is the Layer The priority of the segments of the common-Rank common model, Layer common-Rank specific model and Layer specific-Rank common model. The priority of the CSI report or the precoding information in the CSI report whose processing model is the Layer common model is higher than the priority of the CSI report or the precoding information in the CSI report whose processing model is the Rank specific model or the Rank common model, that is, the priority of the segment of the CSI report or the precoding information in the CSI report whose processing model is the Layer common model is higher than the priority of the segment of the CSI report or the precoding information in the CSI report whose processing model is the Rank specific model or the Rank common model.

[0154] It should be noted that the method for determining the priority of a fragment can be selected from one or more combinations of determination methods according to actual conditions, and is not limited to the method for determining the priority of a fragment described in the embodiment of the present disclosure. Moreover, in the method for determining the priority of a fragment, the level of priority of a fragment can also be determined according to actual conditions. For example, in the embodiment provided in the present disclosure, the priority of a fragment corresponding to a frequency domain unit that is grouped as an even frequency domain unit group is higher than the priority of a fragment corresponding to a frequency domain unit that is grouped as an odd frequency domain unit group. It can also be adjusted according to actual conditions so that the priority of a fragment corresponding to a frequency domain unit that is grouped as an odd frequency domain unit group is higher than the priority of a fragment corresponding to a frequency domain unit that is grouped as an even frequency domain unit group. The present disclosure does not limit this. Similarly, the method for determining the priority of other fragments in the present disclosure and the method for determining the priority of fragments in multiple CSI reports will not be elaborated here.

[0155] In some embodiments, based on the priority of the fragments in the second part CSI of the CSI report, the fragments in the second part CSI of the CSI report are sent. For example, it can be implemented as the following steps: when the transmission resources do not support the transmission of all fragments in the second part CSI of the CSI report, the high priority fragments in the second part CSI of the CSI report are sent, and the low priority fragments are discarded or not sent.

[0156] For example, taking the fragment diagram of the second part of the CSI report shown in Figure 6 as an example, there are a total of M groups. When the transmission resources only support the fragments in group 1 and group 2 in Figure 6, the fragments in group 1 and group 2 are sent, and the fragments in the remaining M-2 groups are discarded.

[0157] In some embodiments, when there are multiple CSI reports, sending the CSI reports may be implemented as the following steps, for example.

[0158] The segments in the second part CSI of the multiple CSI reports are sent based on the priorities of the segments in the second part CSI of the multiple CSI reports.

[0159] The priority of a segment is determined based on the identifier of the CSI report to which the segment belongs and the characteristics of the segment. The characteristics of a segment include at least one of the following: the layer to which the segment belongs, the layer group to which the segment belongs, the frequency domain information corresponding to the segment, the time domain information corresponding to the segment, the spatial domain information corresponding to the segment, and the quantization method of the segment. For example, the identifier of the CSI report to which the segment belongs can be the identity document (ID) of the CSI report to which the segment belongs.

[0160] In some embodiments, the priority of a segment is determined according to the identifier of the CSI report to which the segment belongs and the layer to which the segment belongs.

[0161] In some embodiments, the priority of the identifier of the CSI report to which a segment belongs is higher than the priority of the layer to which the segment belongs. A segment with a smaller ID in the CSI report to which it belongs has a higher priority than a segment with a larger ID in the CSI report to which it belongs. Among multiple segments belonging to the same CSI report, a segment with a lower sequence number in the layer to which it belongs has a higher priority than a segment with a higher sequence number in the layer to which it belongs.

[0162] For example, as shown in Figure 24, the priority of the segments in CSI report 1 layer 1 is higher than the priority of the segments in CSI report 1 layer 2, which is higher than the priority of the segments in CSI report 1 layer N, which is higher than the priority of the segments in CSI report 1 layer N, which is higher than the priority of the segments in CSI report M layer 1, which is higher than the priority of the segments in CSI report M layer 1, which is higher than the priority of the segments in CSI report M layer 2, which is higher than the priority of the segments in CSI report M layer N.

[0163] In some embodiments, the priority of the layer to which a segment belongs is higher than the priority of the identifier of the CSI report to which the segment belongs. A segment with a lower sequence number in a layer has a higher priority than a segment with a higher sequence number in a layer to which it belongs. Among multiple segments belonging to the same layer, a segment with a smaller CSI report ID has a higher priority than a segment with a larger CSI report ID.

[0164] For example, as shown in Figure 25, the priority of the segments in layer 1 of CSI report 1 is higher than the priority of the segments in layer 1 of CSI report 2, the priority of the segments in layer 1 of CSI report 2 is higher than the priority of the segments in layer 1 of CSI report M, the priority of the segments in layer 1 of CSI report M is higher than the priority of the segments in layer N of CSI report 1, the priority of the segments in layer N of CSI report 1 is higher than the priority of the segments in layer N of CSI report 2, and the priority of the segments in layer N of CSI report 2 is higher than the priority of the segments in layer N of CSI report M.

[0165] In some embodiments, the priority of a segment is determined according to the identifier of the CSI report to which the segment belongs and the layer group to which the segment belongs.

[0166] In some embodiments, the identifier of the CSI report to which a segment belongs has a higher priority than the priority of the layer group to which the segment belongs. A segment with a smaller CSI report ID has a higher priority than a segment with a larger CSI report ID. Among multiple segments belonging to the same CSI report, a segment with a lower group number in the layer group has a higher priority than a segment with a higher group number in the layer group.

[0167] For example, as shown in Figure 26, taking the example of each group including two layers, the priority of the segments in CSI report 1 group 1 is higher than the priority of the segments in CSI report 1 group 2, the priority of the segments in CSI report 1 group 2 is higher than the priority of the segments in CSI report 1 group K, the priority of the segments in CSI report 1 group K is higher than the priority of the segments in CSI report M group 1, the priority of the segments in CSI report M group 1 is higher than the priority of the segments in CSI report M group 2, and the priority of the segments in CSI report M group 2 is higher than the priority of the segments in CSI report M group K.

[0168] In some embodiments, the priority of the layer group to which a segment belongs is higher than the priority of the identifier of the CSI report to which the segment belongs. A segment with a lower group number in a layer group has a higher priority than a segment with a higher group number in a layer group. Among multiple segments grouped in the same layer group, a segment with a smaller CSI report ID has a higher priority than a segment with a larger CSI report ID.

[0169] For example, as shown in Figure 27, taking the example of each group including two layers, the priority of the segment in CSI report 1 group 1 is higher than the priority of the segment in CSI report 2 group 1, the priority of the segment in CSI report 2 group 1 is higher than the priority of the segment in CSI report M group 1, the priority of the segment in CSI report M group 1 is higher than the priority of the segment in CSI report 1 group K, the priority of the segment in CSI report 1 group K is higher than the priority of the segment in CSI report 2 group K, and the priority of the segment in CSI report 2 group K is higher than the priority of the segment in CSI report M group K.

[0170] In some embodiments, layers 1 to L in the M CSI reports are grouped together, and layers L+1 to N in each CSI report are grouped together, where N is greater than or equal to L and L is greater than or equal to 1. The priority of the layer group to which a segment belongs is higher than the priority of the identifier of the CSI report to which the segment belongs. A segment with a lower group number in the layer group to which it belongs has a higher priority than a segment with a higher group number in the layer group to which it belongs.

[0171] Exemplarily, as shown in FIG28 , the priority of the fragments in group 0 is higher than that of the fragments in group 1 , and the priority of the fragments in group 1 is higher than that of the fragments in group M.

[0172] In some embodiments, layers 1 to L in the M CSI reports are grouped into one group, and layers L+1 to N in each CSI report are grouped into Q groups, where N is greater than or equal to L and L is greater than or equal to 1. The priority of the identifier of the CSI report to which a segment belongs is higher than the priority of the layer group to which the segment belongs. A segment with a smaller ID in the CSI report to which it belongs has a higher priority than a segment with a larger ID in the CSI report to which it belongs.

[0173] In some embodiments, each of the multiple layers in each CSI report in the multiple CSI reports may be divided into multiple groups, and the priority of the segments with lower group numbers in the layer group is higher than the priority of the segments with higher group numbers in the layer group.

[0174] For example, as shown in FIG29 , each of the N layers in each CSI report is divided into Y groups, and the N layers in each CSI report are divided into Y1Y2…Y N In the arrangement from top to bottom, in group 1, the priority of CSI report 1 layer 1 group 1 is higher than the priority of CSI report M layer 1 group 1. In the arrangement from left to right, in CSI report 1, the priority of group 1 layer 1 group 1 is higher than the priority of group Y1 layer 1 group Y1, the priority of group Y1 layer 1 group Y1 is higher than the priority of group Y1+1 layer 2 group 1, the priority of group Y1+1 layer 2 group 1 is higher than the priority of group Y1+Y2 layer 2 group Y2, and the priority of group Y1+Y2 layer 2 group Y2 is higher than the priority of group Y1+…+Y N-1 +1 priority of layer N packet 1, packet Y1+…+Y N-1 +1 layer N group 1 has higher priority than group Y1+Y2+…+Y N Layer N Group Y N priority.

[0175] In some embodiments, the priority of a segment is determined according to an identifier of a CSI report to which the segment belongs and frequency domain information corresponding to the segment.

[0176] For example, the priority of the segments in the even frequency domain unit group in CSI report 1 is higher than the priority of the segments in the odd frequency domain unit group in CSI report 1, the priority of the segments in the odd frequency domain unit group in CSI report 1 is higher than the priority of the segments in the even frequency domain unit group in CSI report 2, and the priority of the segments in the even frequency domain unit group in CSI report 2 is higher than the priority of the segments in the odd frequency domain unit group in CSI report 2.

[0177] As another example, the priority of the segments in frequency domain unit group 1 in CSI report 1 is higher than the priority of the segments in frequency domain unit group 1 in CSI report 2, the priority of the segments in frequency domain unit group 1 in CSI report 2 is higher than the priority of the segments in frequency domain unit group 1 in CSI report M, the priority of the segments in frequency domain unit group 1 in CSI report M is higher than the priority of the segments in frequency domain unit group 2 in CSI report 1, the priority of the segments in frequency domain unit group 2 in CSI report 1 is higher than the priority of the segments in frequency domain unit group 2 in CSI report M, the priority of the segments in frequency domain unit group 2 in CSI report M is higher than the priority of the segments in frequency domain unit group R in CSI report 1, and the priority of the segments in frequency domain unit group R in CSI report 1 is higher than the priority of the segments in frequency domain unit group R in CSI report M.

[0178] In some embodiments, the priority of a segment is determined according to the identifier of the CSI report to which the segment belongs and the spatial domain information corresponding to the segment.

[0179] Exemplarily, the priority of the segments in the polarization direction 1 spatial domain unit group in CSI report 1 is higher than the priority of the segments in the polarization direction 2 spatial domain unit group in CSI report 1, the priority of the segments in the polarization direction 2 spatial domain unit group in CSI report 1 is higher than the priority of the segments in the polarization direction 1 spatial domain unit group in CSI report 2, the priority of the segments in the polarization direction 1 spatial domain unit group in CSI report 2 is higher than the priority of the segments in the polarization direction 2 spatial domain unit group in CSI report 2, the priority of the segments in the polarization direction 2 spatial domain unit group in CSI report 2 is higher than the priority of the segments in the polarization direction 1 spatial domain unit group in CSI report M, and the priority of the segments in the polarization direction 1 spatial domain unit group in CSI report M is higher than the priority of the segments in the polarization direction 2 spatial domain unit group in CSI report M.

[0180] As another example, the priority of the segments in spatial unit group 1 in CSI report 1 is higher than the priority of the segments in spatial unit group 1 in CSI report 2, the priority of the segments in spatial unit group 1 in CSI report 2 is higher than the priority of the segments in spatial unit group 1 in CSI report M, the priority of the segments in spatial unit group 1 in CSI report M is higher than the priority of the segments in spatial unit group 2 in CSI report 1, the priority of the segments in spatial unit group 2 in CSI report 1 is higher than the priority of the segments in spatial unit group 2 in CSI report M, the priority of the segments in spatial unit group 2 in CSI report M is higher than the priority of the segments in spatial unit group P in CSI report 1, and the priority of the segments in spatial unit group P in CSI report 1 is higher than the priority of the segments in spatial unit group P in CSI report M.

[0181] In some embodiments, the priority of a segment is determined according to an identifier of a CSI report to which the segment belongs and time domain information corresponding to the segment.

[0182] For example, the priority of the segments in time domain unit group 1 in CSI report 1 is higher than the priority of the segments in time domain unit group 2 in CSI report 1, the priority of the segments in time domain unit group 2 in CSI report 1 is higher than the priority of the segments in time domain unit group I in CSI report 1, the priority of the segments in time domain unit group I in CSI report 1 is higher than the priority of the segments in time domain unit group 1 in CSI report 2, the priority of the segments in time domain unit group 1 in CSI report 2 is higher than the priority of the segments in time domain unit group I in CSI report 2, the priority of the segments in time domain unit group I in CSI report 2 is higher than the priority of the segments in time domain unit group 1 in CSI report M, and the priority of the segments in time domain unit group 1 in CSI report M is higher than the priority of the segments in time domain unit group I in CSI report M.

[0183] As another example, the priority of the segments in time domain unit group 1 in CSI report 1 is higher than the priority of the segments in time domain unit group 1 in CSI report 2, the priority of the segments in time domain unit group 1 in CSI report 2 is higher than the priority of the segments in time domain unit group 1 in CSI report M, the priority of the segments in time domain unit group 1 in CSI report M is higher than the priority of the segments in time domain unit group 2 in CSI report 1, and the priority of the segments in time domain unit group 2 in CSI report 1 is higher than the priority of the segments in time domain unit group 2 in CSI report M.

[0184] In some embodiments, the priority of a segment is determined according to the priority of the CSI report to which the segment belongs.

[0185] In some embodiments, the priority of the CSI report may be determined according to a processing model of the CSI report or precoding information in the CSI report.

[0186] For example, the CSI report or precoding information in the CSI report may be obtained based on different artificial intelligence / machine learning processing models. For example, the processing model may be a combination of a layer common model and a rank common model (layer common-rank common), a combination of a layer common model and a rank specific model (layer common-rank specific), a combination of a layer specific model and a rank common model (layer specific-rank common), a rank specific model, and a rank common model.

[0187] As another example, the priority of CSI reports whose processing models are the Layer common-Rank common model, the Layer common-Rank specific model, and the Layer specific-Rank common model is higher than the priority of CSI reports whose processing models are the Rank specific model and the Rank common model. That is, the priority of segments of CSI reports whose processing models are the Layer common-Rank common model, the Layer common-Rank specific model, and the Layer specific-Rank common model is higher than the priority of segments of CSI reports whose processing models are the Rank specific model and the Rank common model.

[0188] In this way, the priority of the content in the CSI report is determined according to multiple methods, and then during the sending process, the content of the CSI report with a high priority is sent first, so as to increase the importance of the content in the feedback CSI.

[0189] In some embodiments, based on the priorities of the fragments in the second part CSI of multiple CSI reports, fragments in the second part CSI of multiple CSI reports are sent. For example, it can be implemented as the following steps: when the transmission resources do not support the transmission of all fragments in the second part CSI of multiple CSI reports, high-priority fragments in the second part CSI of multiple CSI reports are sent, and low-priority fragments are discarded or not sent.

[0190] For example, taking the fragment diagram of the second part of CSI in multiple CSI reports in FIG28 as an example, when the transmission resources only support the transmission of 2 packets, the fragments in packet 0 and packet 1 are sent, and the fragments in other packets are discarded.

[0191] In some embodiments, before sending the CSI report, the following steps are further included: adjusting the number of elements in the CSI report or precoding information in the CSI report so that the bit overhead of the CSI report meets the transmission resource constraint requirement.

[0192] In some embodiments, the compression rate or compression coefficient of the CSI report or the precoding information in the CSI report can be adjusted to adjust the number of elements in the CSI report or the precoding information in the CSI report so that the bit overhead of the CSI report meets the transmission resource constraint requirements.

[0193] It should be noted that the CSI report or the precoding information in the CSI is obtained by precoding the CSI. Taking the CSI including K elements as an example, the CSI report or CSI precoding information obtained after the precoding process includes K' elements, and the compression ratio is defined as K' / K, and the compression coefficient is K / K'.

[0194] For example, as shown in FIG30 , taking the initial channel state information CSI containing 500 elements as an example, after passing through the first processing module in the CSI processing unit, the resulting precoding matrix indicator (PMI) (referred to as precoding) 1 contains 50 elements, the compression rate in the first processing module is 1 / 10, the compression factor is 10, and taking the quantization accuracy of each element as 3 bits / element as an example, a total of 150 bits of overhead are required. To ensure that the bit overhead of the CSI report meets the transmission resource constraint requirements, the initial state information can be processed using the second processing module in the CSI processing unit with a lower compression rate and a higher compression factor. After processing, the generated precoding 2 contains 20 elements, the compression rate in the second processing module is 1 / 25, the compression factor is 25, and taking the quantization accuracy of each element as 3 bits / element as an example, a total of 60 bits of overhead are required.

[0195] As another example, as shown in FIG31 , the initial state information can be precoded by multiple CSI processing units to meet the transmission resource restriction requirements. Taking the initial channel state information containing 500 elements as an example, after being processed by the first CSI processing unit with a compression rate of 1 / 10 or a compression coefficient of 10, the obtained precoding 1 contains 50 elements. Taking the quantization accuracy of 3 bits / element as an example, a total of 150 bits of overhead is required, which does not meet the transmission resource restriction requirements at this time. Further, precoding 1 is further processed by the second CSI processing unit with a compression rate of 1 / 5 or a compression coefficient of 5 to obtain precoding 2. Precoding 2 contains 10 elements. Taking the quantization accuracy of 3 bits / element as an example, a total of 30 bits of overhead is required.

[0196] In practical applications, different compression rates or coefficients can be used to process the initial channel state information based on transmission resource constraints to meet transmission resource constraints and maximize the integrity of the CSI report. The mapping of CSI elements to quantized bits can be done using vector quantization or, in the case of scalar quantization, uniform or non-uniform quantization.

[0197] In some embodiments, the number of bits in the quantized bit sequence may be determined by vector quantization.

[0198] Exemplarily, the segment size of the elements in the precoding information can be determined by vector quantization, or the size of the vector quantization codebook can be determined by vector quantization, or the length of the codeword in the vector quantization codebook can be determined by vector quantization, or the number of codewords in the vector quantization codebook can be determined by vector quantization, or the index of the codeword in the vector quantization codebook can be determined by vector quantization, or the index of the vector quantization codebook can be determined by vector quantization, or the parameters of the vector quantization codebook can be determined by vector quantization, and the number of bits in the quantized bit sequence can be further determined.

[0199] It should be noted that the number of bits in the quantized bit sequence can be determined by one or more of the above examples or other determination methods not described in the examples. This disclosure is not limited to this and can be set according to actual circumstances. The relevant content of the scalar quantization method and vector quantization method described in this disclosure can be configured by the second communication node, or can also be configured by the first communication node, and the detailed configuration information can be reported to the second communication node. This disclosure is not limited to this.

[0200] In some embodiments, adjusting the number of elements in the CSI report or the precoding information in the CSI report may be implemented as the following steps, for example.

[0201] The elements or bits in the second part CSI of the CSI report are punctured or discarded so that the bit overhead of the second part CSI of the CSI report meets the restriction requirement of the transmission resources.

[0202] As an implementation manner, elements or bits in the second part CSI of the CSI report are punctured or discarded based on a preset pattern.

[0203] Exemplarily, the preset pattern may be L elements indexed as odd numbers in the second part CSI of the CSI report or the quantized bit pattern corresponding to / mapped by the elements. Alternatively, the preset pattern may also be L elements indexed as even numbers in the second part CSI of the CSI report or the quantized bit pattern corresponding to / mapped by the elements. Alternatively, the preset pattern may also be L elements indexed as S to S-L+1 in the second part CSI of the CSI report or the quantized bit pattern corresponding to / mapped by the elements. Alternatively, the preset pattern may also be the first L / 2 and last L / 2 elements in the second part CSI of the CSI report or the quantized bit pattern corresponding to / mapped by the elements. The detailed element index is and to L elements of S is a floor function), or, element index is 0 to and to L elements of S ( is a rounding function). Alternatively, the preset pattern may be L random or specific elements in the second part CSI of the CSI report. L and S are positive integers, the index of the first element in the second part CSI of the CSI report is 0, and the index of the last element is S. The manner in which the elements in the second part CSI of the CSI report correspond / map to the quantization bits may be a vector quantization manner, or a uniform quantization manner or a non-uniform quantization manner in a scalar quantization manner. In actual application, the preset image may be determined according to actual conditions, and this disclosure is not limited thereto.

[0204] As another example, taking the preset pattern of 5 elements with odd indexes in the CSI report as an example, the elements with element indexes of 1, 3, 5, 7, and 9 in the second part CSI of the CSI report can be punctured or discarded, and the elements with element indexes of 11, 13, 15, 17, and 19 in the second part CSI of the CSI report can also be punctured or discarded.

[0205] In this way, by adjusting the compression rate / compression coefficient and based on a preset pattern, the number of elements in the CSI report or the precoding information in the CSI report is adjusted so that the bit overhead of the CSI report or the precoding information in the CSI report meets the transmission resource limitations and as much content in the CSI report as possible is sent.

[0206] In some embodiments, as shown in FIG32 , when there are multiple CSI reports, sending the CSI reports may be implemented as the following steps, for example.

[0207] S1021. Allocate transmission resources to the second parts of CSI of multiple CSI reports, where the second part of CSI of each CSI report is allocated to a part of the transmission resources.

[0208] In some embodiments, allocating transmission resources to the second parts CSI of multiple CSI reports may be implemented, for example, as the following steps: allocating transmission resources evenly to the second parts CSI of multiple CSI reports.

[0209] Transmission resources are allocated to the second part of CSI in the plurality of CSI reports, such that the second part of CSI in each CSI report is allocated to the same transmission resource.

[0210] For example, the transmission resource may be an uplink allocation overhead resource. When the remaining uplink allocation overhead resource is N bits, and there are M CSI reports to be sent, and the bit overhead required to send each CSI report satisfies N1+N2+…+N MWhen N, it indicates that the remaining uplink allocation overhead resources can meet the bit overhead required for transmitting multiple CSI reports. Further, the uplink allocation overhead resources N are evenly allocated to M CSI reports, and each CSI report obtains N / M bits.

[0211] As another example, when the remaining transmission resources are 500 bits and there are 5 CSI reports to be transmitted in total, 500 bits can only transmit the first 3 CSI reports and cannot meet the requirement of transmitting all CSI reports. Allocate 500 bits evenly to 5 CSI reports, and each CSI report obtains 100 bits of transmission resources.

[0212] In some embodiments, allocating the transmission resources to the second part CSI of multiple CSI reports can be implemented as the following steps. Allocate the transmission resources to the second part CSI of multiple CSI reports according to the weights.

[0213] The weight of the second part CSI of the CSI report is determined based on the priority of the second part CSI of the CSI report.

[0214] Exemplarily, the transmission resources can be uplink allocation overhead resources. When the remaining uplink allocation overhead resources are N bits, and there are M CSI reports to be transmitted in total, and the bit overhead required for transmitting each CSI report satisfies N1 + N2 + … + N M <N, it indicates that the remaining uplink allocation overhead resources can meet the bit overhead required for transmitting multiple CSI reports. Allocate the N-bit resources according to the respective weights α1, α2, …, α M of the CSI reports to M CSI reports, so that each CSI is allocated B1, B2,..., B M bits of transmission resources. α1 + α2 + … + α M = 1, B K = N·α K , K = 1, 2, …, M, B1 + B2 + … + B M = N.

[0215] As another example, when the remaining transmission resources are 500 bits and there are 5 CSI reports to be transmitted in total, 500 bits can only transmit the first 3 CSI reports and cannot meet the requirement of transmitting all CSI reports. Allocate the 500-bit transmission resources according to the weights corresponding to each CSI report, and the bit resources obtained by each CSI report are 200 bits, 150 bits, 80 bits, 50 bits, and 20 bits respectively.

[0216] It should be noted that the weight of the second part of the CSI in the CSI report is determined based on the priority of the second part of the CSI in the CSI report. The weight of the second part of the CSI in the CSI report is positively correlated with the priority of the second part of the CSI in the CSI report. The higher the priority of the second part of the CSI in the CSI report, the higher the weight of the second part of the CSI in the CSI report. The weight of the second part of the CSI in the CSI report is allocated by the second communication node in Figure 1 based on the priority of the second part of the CSI in the CSI report. It can also be allocated by the first communication node in Figure 1 based on the priority of the second part of the CSI in the CSI report, and the usage of the transmission resources is reported to the second communication node.

[0217] S1022: Send the second part CSI of the CSI report on a part of the allocated transmission resources.

[0218] For example, when the bit overhead required for sending a CSI report is 100 bits and the allocated transmission resources are 150 bits, the allocated transmission resources are sufficient to send the CSI report, and the entire content of the second part CSI of the CSI report is sent. When the bit overhead required for sending a CSI report is 100 bits and the allocated transmission resources are 50 bits, the allocated transmission resources are insufficient to send the CSI report, and a portion of the second part CSI of the CSI report is sent.

[0219] It is understandable that, in order to implement the above functions, the communication device includes hardware structures and / or software modules corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the algorithm steps of each example described in the embodiments of the present disclosure, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present disclosure.

[0220] The embodiments of the present disclosure can divide the functional modules of the communication device according to the above-mentioned method embodiments. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one functional module. The above-mentioned integrated modules can be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiments of the present disclosure is schematic and is only a logical functional division. In actual implementation, there may be other division methods. The following is an example of dividing each functional module corresponding to each function.

[0221] FIG33 is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure. The communication device 330 can execute the method related to the first communication node in the information feedback method provided in the above method embodiment. As shown in FIG33 , the communication device 330 includes a processing module 3301 and a communication module 3302.

[0222] The processing module 3301 is configured to obtain configuration information and process a channel state information CSI report according to the configuration information.

[0223] The communication module 3302 is configured to send a CSI report.

[0224] In some embodiments, the CSI report includes a first part of CSI and a second part of CSI; the communication module 3302 is used to: send the segments in the second part of CSI of the CSI report based on the priority of the segments in the second part of CSI of the CSI report.

[0225] In some embodiments, the priority of a fragment is determined based on at least one of the following: the layer to which the fragment belongs, the layer group to which the fragment belongs, the frequency domain information corresponding to the fragment, the time domain information corresponding to the fragment, the spatial domain information corresponding to the fragment, and the quantization method of the fragment.

[0226] In some embodiments, fragments of layers with lower sequence numbers have higher priority than fragments of layers with higher sequence numbers.

[0227] In some embodiments, the quantization method includes a quantization type and / or a quantization accuracy.

[0228] In some embodiments, the communication module 3302 is used to: when the transmission resources do not support the transmission of all segments in the second part CSI of the CSI report, send high-priority segments in the second part CSI of the CSI report, and discard or not send low-priority segments.

[0229] In some embodiments, there are multiple CSI reports, each CSI report includes a first part of CSI and a second part of CSI; the communication module 3302 is used to: send the segments in the second part of CSI of the multiple CSI reports based on the priority of the segments in the second part of CSI of the multiple CSI reports.

[0230] In some embodiments, the priority of a fragment is determined based on the identifier of the CSI report to which the fragment belongs and the characteristics of the fragment, where the characteristics of the fragment include at least one of the following: the layer to which the fragment belongs, the layer group to which the fragment is located, the frequency domain information corresponding to the fragment, the time domain information corresponding to the fragment, the spatial domain information corresponding to the fragment, and the quantization method of the fragment.

[0231] In some embodiments, the communication module 3302 is used to: when the transmission resources do not support the transmission of all fragments in the second part CSI of multiple CSI reports, send high-priority fragments in the second part CSI of multiple CSI reports, and discard or not send low-priority fragments.

[0232] In some embodiments, the CSI report includes a first part CSI and a second part CSI; the processing module 3301 is used to: adjust the quantization method configured by the configuration information to obtain an adjusted quantization method; and quantize the content of the second part CSI of the CSI report based on the adjusted quantization method so that the bit overhead of the second part CSI of the CSI report meets the transmission resource restriction requirements.

[0233] In some embodiments, the processing module 3301 is further configured to adjust the number of elements in the CSI report or precoding information in the CSI report so that the bit overhead of the CSI report meets the transmission resource constraint requirement.

[0234] In some embodiments, the processing module 3301 is configured to adjust the compression rate or compression coefficient of the CSI report or the precoding information in the CSI report.

[0235] In some embodiments, the processing module 3301 is further configured to: puncture or discard elements or bits in the second part CSI of the CSI report so that the bit overhead of the second part CSI of the CSI report meets the transmission resource constraint requirements.

[0236] In some embodiments, the processing module 3301 is configured to: puncture or discard elements or bits in the second part CSI of the CSI report based on a preset pattern.

[0237] In some embodiments, there are multiple CSI reports, each CSI report includes a first part CSI and a second part CSI; the communication module 3302 is used to: allocate transmission resources to the second part CSI of multiple CSI reports, and allocate the second part CSI of each CSI report to a part of the transmission resources; and send the second part CSI of the CSI report on a part of the allocated transmission resources.

[0238] In some embodiments, the communication module 3302 is configured to: evenly allocate transmission resources to the second part CSI of the multiple CSI reports.

[0239] In some embodiments, the communication module 3302 is configured to: allocate transmission resources to the second part CSI of the plurality of CSI reports according to weights.

[0240] In some embodiments, the weight of the second portion of CSI of the CSI report is determined based on the priority of the second portion of CSI of the CSI report.

[0241] In the case of implementing the functions of the above-mentioned integrated modules in hardware, the embodiments of the present disclosure provide another structure of the communication device involved in the above-mentioned embodiments. As shown in Figure 34, the communication device 340 includes: a processor 3402 and a bus 3404. In some embodiments, the communication device 340 may also include a memory 3401; in some embodiments, the communication device 340 may also include a communication interface 3403.

[0242] Processor 3402 may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. Processor 3402 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Processor 3402 may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. Processor 3402 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0243] The communication interface 3403 is used to connect to other devices via a communication network, such as Ethernet, wireless access network, or wireless local area network (WLAN).

[0244] The memory 3401 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0245] As an implementation, the memory 3401 may exist independently of the processor 3402. The memory 3401 may be connected to the processor 3402 via a bus 3404 for storing instructions or program codes. When the processor 3402 calls and executes the instructions or program codes stored in the memory 3401, the channel state information reporting feedback method provided in the embodiment of the present disclosure can be implemented.

[0246] In another implementation, the memory 3401 may also be integrated with the processor 3402 .

[0247] Bus 3404 can be an Extended Industry Standard Architecture (EISA) bus, etc. Bus 3404 can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, FIG34 shows only one thick line, but this does not mean that there is only one bus or only one type of bus.

[0248] Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium), which stores computer program instructions. When the computer program instructions are executed on a computer, the computer executes the channel state information reporting feedback method as described in any of the above embodiments.

[0249] Exemplarily, the above-mentioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes, etc.), optical disks (e.g., compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.). The various computer-readable storage media described in the present disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0250] An embodiment of the present disclosure provides a computer program product comprising instructions. When the computer program product is run on a computer, the computer is enabled to execute the channel state information reporting feedback method described in any of the above embodiments.

[0251] The above is only a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or replacements within the technical scope disclosed in the present disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A channel state information report feedback method, comprising: Obtain configuration information, and process a channel state information CSI report according to the configuration information; Send the CSI report.

2. The method according to claim 1, wherein: The CSI report includes a first part of CSI and a second part of CSI; and sending the CSI report includes: The segments in the second part of the CSI of the CSI report are sent based on the priorities of the segments in the second part of the CSI of the CSI report.

3. The method according to claim 2, wherein: The priority of the fragment is determined according to at least one of the following: the layer to which the fragment belongs, the layer group to which the fragment belongs, the frequency domain information corresponding to the fragment, the time domain information corresponding to the fragment, the spatial domain information corresponding to the fragment, and the quantization method of the fragment.

4. The method according to claim 3, wherein: The priority of the fragment with a lower sequence number in the layer is higher than the priority of the fragment with a higher sequence number in the layer.

5. The method according to claim 3, wherein: The quantization method includes a quantization type and / or a quantization accuracy.

6. The method according to claim 2, wherein: The sending of the segments in the second part CSI of the CSI report based on the priorities of the segments in the second part CSI of the CSI report includes: In the case where transmission resources do not support transmission of all segments in the second part CSI of the CSI report, high-priority segments in the second part CSI of the CSI report are transmitted, and low-priority segments are discarded or not transmitted.

7. The method according to claim 1, wherein: There are multiple CSI reports, each of which includes a first part of CSI and a second part of CSI; and sending the CSI report includes: The segments in the second portion of CSI of the plurality of CSI reports are transmitted based on the priorities of the segments in the second portion of CSI of the plurality of CSI reports.

8. The method according to claim 7, wherein: The priority of the fragment is determined according to the identifier of the CSI report to which the fragment belongs and the characteristics of the fragment, and the characteristics of the fragment include at least one of the following: the layer to which the fragment belongs, the layer group to which the fragment is located, the frequency domain information corresponding to the fragment, the time domain information corresponding to the fragment, the spatial domain information corresponding to the fragment, and the quantization method of the fragment.

9. The method according to claim 7, wherein: The sending of the segments in the second part of the CSI of the multiple CSI reports based on the priorities of the segments in the second part of the CSI of the multiple CSI reports includes: When the transmission resources do not support the transmission of all the segments in the second part CSI of the multiple CSI reports, the high priority segments in the second part CSI of the multiple CSI reports are sent, and the low priority segments are discarded or not sent.

10. The method according to claim 1, wherein: The CSI report includes a first part of CSI and a second part of CSI; and processing the channel state information CSI report according to the configuration information includes: Adjusting the quantization method configured by the configuration information to obtain an adjusted quantization method; The content of the second part CSI of the CSI report is quantized based on the adjusted quantization method, so that the bit overhead of the second part CSI of the CSI report meets the restriction requirement of the transmission resources.

11. The method according to claim 1, wherein: Before sending the CSI report, the method includes: The number of elements in the CSI report or the precoding information in the CSI report is adjusted so that the bit overhead of the CSI report meets the limitation requirement of the transmission resources.

12. The method according to claim 11, wherein: The adjusting the CSI report or the number of elements in the precoding information in the CSI report includes: Adjust the compression rate or compression factor of the CSI report or the precoding information in the CSI report.

13. The method according to claim 1, wherein: The CSI report includes a first part of CSI and a second part of CSI; Before sending the CSI report, the method includes: The elements or bits in the second part CSI of the CSI report are punctured or discarded so that the bit overhead of the second part CSI of the CSI report meets the restriction requirement of the transmission resources.

14. The method according to claim 13, wherein: Puncturing or discarding elements or bits in the second part CSI of the CSI report includes: Based on a preset pattern, elements or bits in the second part CSI of the CSI report are punctured or discarded.

15. The method according to claim 1, wherein: There are multiple CSI reports, each of which includes a first part of CSI and a second part of CSI; and sending the CSI report includes: Allocate transmission resources to the second parts CSI of the multiple CSI reports, the second part CSI of each CSI report being allocated to a part of the transmission resources; The second part CSI of the CSI report is sent on a part of the allocated transmission resources.

16. The method according to claim 15, wherein: The allocating transmission resources to the second part CSI of the plurality of CSI reports comprises: The transmission resources are evenly allocated to the second parts of CSI of the multiple CSI reports.

17. The method according to claim 15, wherein: The allocating transmission resources to the second part CSI of the plurality of CSI reports comprises: The transmission resources are allocated to the second part CSI of the plurality of CSI reports according to the weights.

18. The method according to claim 17, wherein: The weight of the second part of the CSI of the CSI report is determined based on the priority of the second part of the CSI of the CSI report.

19. A communication device, comprising a processor, wherein the processor implements the channel state information report feedback method according to any one of claims 1 to 18 when executing a computer program.

20. A computer-readable storage medium comprising computer instructions; wherein: When the computer instructions are executed, the channel state information reporting feedback method according to any one of claims 1 to 18 is implemented.

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