Method and apparatus for acquiring channel information, and storage medium

Abstract

The embodiments of the present disclosure relate to the technical field of communications. Provided are a method and apparatus for acquiring channel information, and a storage medium, which are used for reducing the processing complexity of acquiring channel information. The method comprises: on the basis of measurement for a first channel measurement reference signal, obtaining first indication information corresponding to first channel information; and on the basis of the first channel information and first configuration information, obtaining second indication information corresponding to second channel information, wherein the first configuration information is used for configuring a relationship between the first indication information and the second indication information.

Description

Method, device and storage medium for acquiring channel information

[0001] This application claims priority to Chinese patent application No. 202311270791.5 filed on September 27, 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 method, device, and storage medium for acquiring channel information. Background Art

[0003] With the increasing demand for communications and the ever-expanding range of communication scenarios, as well as the deepening integration of information theory with radio electromagnetic wave theory, the collaborative processing of near-field spherical waves with distributed multi-device and multi-resource (resources that can correspond to multiple channel measurement reference signals) has attracted increasing attention from researchers. This collaborative processing can be gradually expanded to more applicable scenarios, such as indoor and outdoor venues with high-density and high-capacity requirements, and smart factories with distributed deployments of multiple devices.

[0004] In collaborative processing, it is necessary to obtain relatively accurate channel information. However, existing information processing mechanisms have a high complexity in obtaining channel information, and the obtained channel information cannot well reflect the channel status corresponding to certain distributed scenarios, resulting in information bias and affecting the performance of the communication system.

[0005] Summary of the Invention

[0006] The present disclosure provides a method, device, and storage medium for acquiring channel information, which are used to reduce the processing complexity of acquiring channel information.

[0007] In order to achieve the above objectives, the present disclosure adopts the following technical solutions.

[0008] In a first aspect, a method for acquiring channel information is provided, the method comprising:

[0009] Obtaining first indication information corresponding to the first channel information based on measurement of the first channel measurement reference signal;

[0010] Based on the first indication information and the first configuration information, second indication information corresponding to the second channel information is obtained, where the first configuration information is used to configure a relationship between the first indication information and the second indication information.

[0011] In a second aspect, a method for acquiring channel information is provided, the method comprising:

[0012] Acquire second configuration information, where the second configuration information is used to configure a correspondence between first indication information corresponding to the first channel information and second indication information corresponding to the second channel information in terms of value ranges;

[0013] Obtaining first indication information based on the second configuration information and measurement of the first channel measurement reference signal;

[0014] Second indication information is obtained based on the second configuration information and measurement of the second channel measurement reference signal.

[0015] According to a third aspect, a communication device is provided, the device comprising:

[0016] A processing unit is used to: obtain first indication information corresponding to the first channel information based on the measurement of the first channel measurement reference signal; obtain second indication information corresponding to the second channel information based on the first indication information and the first configuration information, wherein the first configuration information is used to configure the relationship between the first indication information and the second indication information.

[0017] According to a fourth aspect, a communication device is provided, the device comprising:

[0018] An acquiring unit, configured to acquire second configuration information, where the second configuration information is used to configure a correspondence between first indication information corresponding to the first channel information and second indication information corresponding to the second channel information in terms of a value range;

[0019] The processing unit is used to: obtain first indication information based on the second configuration information and the measurement of the first channel measurement reference signal; obtain second indication information based on the second configuration information and the measurement of the second channel measurement reference signal.

[0020] In a fifth aspect, a communication device is provided, comprising: a processor and a memory; the memory stores instructions executable by the processor; when the processor is configured to execute the instructions, the communication device implements the method provided in any one of the first or second aspects above.

[0021] In a sixth aspect, a computer-readable storage medium is provided, which stores computer instructions. When the computer instructions are executed on a computer, the computer executes the method provided in either the first aspect or the second aspect.

[0022] In a seventh aspect, a computer program product comprising computer instructions is provided, which, when executed on a computer, enables the computer to execute the method provided in either the first aspect or the second aspect.

[0023] In an embodiment of the present disclosure, after obtaining the first indication information corresponding to the first channel information based on the measurement of the first channel measurement reference signal, the second indication information corresponding to the second channel information can be obtained based on the relationship between the first indication information and the second indication information indicated by the first configuration information and the first indication information, that is, the independent first indication information and the second indication information are associated, and the second indication information can be obtained based on the first indication information and the first configuration information, which reduces the processing complexity of obtaining channel information and helps to improve the performance of the communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation to the technical solution of the present disclosure.

[0025] FIG1 is a schematic diagram of obtaining and feeding back indication information provided by an embodiment of the present disclosure;

[0026] FIG2 is a schematic structural diagram of a communication system provided by an embodiment of the present disclosure;

[0027] FIG3 is a flow chart of a method for acquiring channel information according to an embodiment of the present disclosure;

[0028] FIG4 is a flow chart of another method for acquiring channel information provided by an embodiment of the present disclosure;

[0029] FIG5 is a flow chart of another method for acquiring channel information provided by an embodiment of the present disclosure;

[0030] FIG6 is a flow chart of another method for acquiring channel information provided by an embodiment of the present disclosure;

[0031] FIG7 is a flow chart of another method for acquiring channel information provided by an embodiment of the present disclosure;

[0032] FIG8 is a schematic diagram of the composition of a communication device provided by an embodiment of the present disclosure;

[0033] FIG9 is a schematic diagram of the composition of another communication device provided in an embodiment of the present disclosure;

[0034] FIG10 is a schematic structural diagram of a communication device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0035] 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 any creative efforts are within the scope of protection of the present disclosure.

[0036] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and its other forms, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open and inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" are intended to indicate that the particular features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the particular features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0037] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this disclosure, unless otherwise specified, "plurality" means two or more.

[0038] In the embodiments of the present disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present disclosure should not be interpreted as being more preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0039] Additionally, the use of “based on” is meant to be open and inclusive, as a process, step, calculation, or other action “based on” one or more stated conditions or values ​​may, in practice, be based on additional conditions or values ​​beyond those stated.

[0040] In existing communication standardization protocols, the wireless channel model is based on the assumptions of far-field plane waves and communication between two devices. The corresponding channel codebook and channel information feedback mechanism are designed based on this assumption. The existing channel information acquisition and feedback method can be shown in Figure 1 below. Referring to Figure 1, a terminal receives channel measurement reference signals transmitted from different ports (different ports may correspond to different base stations, different antenna array panels on the same base station, or different array element ports on the same antenna array panel). For example, the terminal receives channel measurement reference signal 1 transmitted from port 1 and channel measurement reference signal 2 transmitted from port 2 to obtain the channel information corresponding to each channel measurement reference signal and the corresponding indication information. The terminal then feeds back the channel information indication information using a pre-agreed method (such as agreeing on the same codebook and the same feedback mode). In this way, on the one hand, the channel information is related to a specific angle information. On the other hand, for different channel measurement reference signals, the terminal independently performs a channel information acquisition and feedback process, without considering any possible correlation between the channel information (or indication information) and other channel information (or indication information). For example, referring to Figure 1 again, indication information 1 is obtained only from channel measurement reference signal 1 and has nothing to do with channel measurement reference signal 2 or indication information 2. That is, indication information 1 is determined by channel measurement reference signal 1, and indication information 2 is determined by channel measurement reference signal 2. Channel measurement reference signal 1 and channel measurement reference signal 2 are not related. This results in a high processing complexity for obtaining channel information. In collaborative processing, if the existing channel information acquisition and feedback mechanism is used, the high processing complexity of obtaining channel information will result in the acquired channel information not being able to well reflect the channel status corresponding to certain distributed scenarios, resulting in information deviation, thereby affecting the performance of the communication system.

[0041] Based on this, how to reduce the processing complexity of obtaining channel information is a technical problem that needs to be solved urgently.

[0042] Based on this, the embodiments of the present disclosure provide a method, device and storage medium for obtaining channel information. After obtaining first indication information corresponding to the first channel information based on the measurement of the first channel measurement reference signal, the second indication information corresponding to the second channel information can be obtained based on the relationship between the first indication information and the second indication information indicated by the first configuration information and the first indication information. That is, the independent first indication information and the second indication information are associated, and the second indication information can be obtained based on the first indication information and the first configuration information, which reduces the processing complexity of obtaining channel information and helps to improve the performance of the communication system.

[0043] The following describes the solutions of the embodiments of the present disclosure in conjunction with the accompanying drawings.

[0044] The technical solutions provided by the embodiments of the present disclosure can be applied to various mobile communication networks, for example, new radio (NR) mobile communication networks using fifth-generation mobile communication technology (5G), future mobile communication networks, or multiple communication convergence systems, etc., but the embodiments of the present disclosure are not limited to this.

[0045] Figure 2 is a schematic diagram of the structure of a communication system provided by an embodiment of the present disclosure. As shown in Figure 1, the communication system includes, but is not limited to, a terminal 110 and a base station 120. Terminal 110 and base station 120 can transmit and receive wireless signals, and perform related interactions.

[0046] In a wireless communication scenario, the terminal 110 communicates with the base station 120 through a wireless channel.

[0047] The terminal 110 may be a device with wireless transceiver capabilities, such as a mobile phone, a tablet computer, a wearable device, an in-vehicle device, an augmented reality (AR) / virtual reality (VR) device, a laptop computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), etc. The embodiments of the present disclosure do not limit the specific type of the terminal.

[0048] Base station 120 can be any of an evolved NodeB (eNB), a next-generation NodeB (gNB), a transmission receive point (TRP), a transmission point (TP), or some other access node. Based on the size of the service coverage area provided, base stations can be further categorized as macro base stations for providing macro cells (acro cells), micro base stations for providing micro cells (Pico cells), and femto base stations for providing femto cells. As wireless communication technology continues to evolve, future base stations may also adopt other names.

[0049] It should be understood that FIG2 is an exemplary structural diagram, and the number of devices included in the communication system shown in FIG2 is not limited, for example, the number of base stations and terminals is not limited. Moreover, in addition to the devices shown in FIG2, the communication system shown in FIG2 may also include other devices, which is not limited.

[0050] Next, as shown in FIG3 , an embodiment of the present disclosure provides a method for acquiring channel information. The method is applied to a terminal, which may be the terminal 110 described in FIG2 . The method includes the following steps S101 and S102 .

[0051] S101. Obtain first indication information corresponding to first channel information based on measurement of a first channel measurement reference signal.

[0052] In some embodiments, when a terminal receives a first channel measurement reference signal sent by a network side, the terminal measures the first channel measurement reference signal to obtain first channel information and first indication information corresponding to the first channel information.

[0053] In some embodiments, the first channel information is channel state information.

[0054] In some embodiments, the first indication information is precoding matrix indication information.

[0055] S102: Obtain second indication information corresponding to the second channel information based on the first indication information and the first configuration information.

[0056] In some embodiments, after obtaining the first indication information, the terminal may obtain second indication information corresponding to the second channel information based on the first indication information and the first configuration information. The first configuration information is used to configure the relationship between the first indication information and the second indication information. The first configuration information is pre-configured or configured on the network side, and the network side may be a base station.

[0057] As an example, the first configuration information includes a first parameter and a first function, wherein the first parameter is used to represent the distance between the first indication information and the second indication information, and the distance is an integer, that is, the distance can be a positive integer or a negative integer.

[0058] It should be understood that when the spacing is a positive integer, it means that the first indication information is located on the left side of the second indication information, and when the spacing is a negative integer, it means that the first indication information is located on the right side of the second indication information.

[0059] In some embodiments, the distance between the first indication information and the second indication information may be an average distance between the first indication information and the second indication information.

[0060] In some embodiments, the first function is used to constrain the value of the second indication information to be within a first value range, wherein the first value range may be pre-configured or included in the first configuration information.

[0061] As a possible example, the first function is specifically configured to: determine, when the first value is within a first value range, the value of the second indication information to be the first value; when the first value is greater than an upper limit of the first value range, determine the value of the second indication information to be the upper limit of the first value range; and when the first value is less than a lower limit of the first value range, determine the value of the second indication information to be the lower limit of the first value range. The first value is determined based on the value of the first indication information and the first parameter.

[0062] As an example, the first value is the sum of the value of the first indication information and the first parameter. The first value may also be the difference between the value of the first indication information and the first parameter, the quotient of the value of the first indication information and the first parameter, the product of the value of the first indication information and the first parameter, etc. The embodiments of this disclosure do not limit the specific setting of the first value.

[0063] Exemplarily, based on the first indication information and the first configuration information, the second indication information corresponding to the second channel information is obtained, which can be shown as the following formula (1) or formula (2):

[0064] In the above formulas (1) and (2), i1 is the first indication information, i2 is the second indication information, is the first function, Δi 1,2 1 is the first parameter, i min is the lower limit of the first value range, i max The upper limit of the first value range.

[0065] It can be seen from the above formulas (1) and (2) that, based on the constraint of the first function, the value of the second indication information is within the first value range.

[0066] In some embodiments, the value of the first indication information is within the first value range, that is, the value of the first indication information and the value of the second indication information may both be within the first value range.

[0067] As a possible example, the second indication information may be an indication information group, which includes multiple indication information. That is, based on the first indication information and the first configuration information, an indication information group may be determined, where the indication information group includes multiple indication information corresponding to multiple channel information, thereby reducing the processing complexity of obtaining the channel information.

[0068] Based on the embodiment shown in Figure 3, after obtaining the first indication information corresponding to the first channel information based on the measurement of the first channel measurement reference signal, the second indication information corresponding to the second channel information can be obtained based on the relationship between the first indication information and the second indication information indicated by the first configuration information and the first indication information. That is, there is no need to measure the second channel measurement reference signal, and the second indication information corresponding to the second channel measurement reference signal can be obtained based on the relationship between the first indication information and the second indication information. The independent first indication information and the second indication information are associated, which reduces the processing complexity of obtaining the channel information, helps to reduce the overhead of subsequent feedback indication information, and improves the performance of the communication system.

[0069] The above embodiment is described by taking the example of obtaining the second indication information corresponding to the second channel measurement reference signal without measuring the second channel measurement reference signal. In some embodiments, as shown in FIG4 , the above step S102 can also be implemented as the following steps S201 and 202.

[0070] S201. Determine, based on first indication information and first configuration information, a second value range corresponding to second indication information from a first value range.

[0071] In some embodiments, after obtaining the first indication information, the terminal may determine, from the first value range, the second value range corresponding to the second indication information based on the first indication information and the first configuration information in order to quickly obtain the second indication information and reduce the complexity of obtaining the channel information. In this way, the second indication information can be determined based on the smaller second value range without having to determine the second indication information from the larger first value range, thereby reducing the complexity of obtaining the channel information.

[0072] The following describes, with reference to several examples, how to determine the second value range corresponding to the second indication information from the first value range based on the first indication information and the first configuration information.

[0073] Example 1: The first configuration information includes a second parameter, a third parameter, a second function, a third function, and a fourth function.

[0074] Among them, the second parameter is used to characterize the distance between the first indication information and the reference point of the second value range, the third parameter is used to characterize the size of the second value range, the second function is used to constrain the reference point of the second value range to be within the first value range, the third function is used to constrain the lower limit value of the second value range to be within the first value range, and the fourth function is used to constrain the upper limit value of the second value range to be within the first value range.

[0075] As a possible example, based on Example 1, based on the first indication information and the first configuration information, determining the second value range corresponding to the second indication information from the first value range may include the following steps A1 to A5.

[0076] A1. Determine a second value based on the first indication information and the second parameter.

[0077] The second value may be the sum of the first indication information and the second parameter, or the difference between the first indication information and the second parameter, the quotient of the first indication information and the second parameter, the product of the first indication information and the second parameter, etc., and the present embodiment does not limit this. For ease of description, the present embodiment takes the second value as the sum of the first indication information and the second parameter as an example for explanation.

[0078] A2. Determine a reference point of the second value range based on the second value, the first value range, and the second function.

[0079] For example, A2 may be expressed as shown in the following formula (3) and formula (4).

[0080] Among them, in the above formula (3)-formula (4), is the reference point of the second value range, is the second function, Δi 1,2 2 is the second parameter, i1+Δi 1,2 2 The second value.

[0081] It can be seen from the above formulas (3) and (4) that, under the constraints of the second function, when the second value is within the first value range, the value of the reference point of the second value range is determined to be the second value. When the second value is greater than the upper limit of the first value range, the value of the reference point of the second value range is determined to be the upper limit of the first value range. When the second value is less than the lower limit of the first value range, the value of the reference point of the second value range is determined to be the lower limit of the first value range.

[0082] In some embodiments, the reference point may also have other names, for example, reference point.

[0083] A3. Based on the reference point of the second value range, the third parameter, and the third function, obtain a lower limit value of the second value range.

[0084] A4. Obtain an upper limit value of the second value range based on the reference point of the second value range, the third parameter, and the fourth function.

[0085] For example, A3 and A4 may be expressed as shown in the following formulas (5) and (6).

[0086] Among them, in the above formula (5) and formula (6), i 2,min is the lower limit of the second value range, i 2,max is the upper limit of the second value range, i min is the lower limit of the first value range, i max is the upper limit of the first value range, δ 1,2 is the third parameter, is the third function, is the fourth function.

[0087] It can be seen from the above formula (5) that, under the constraint of the third function, when the difference between the absolute value of the reference point of the second value range and the third parameter is less than the lower limit value of the first value range, the value of the lower limit value of the second value range is determined to be the lower limit value of the first value range; when the difference between the absolute value of the reference point of the second value range and the third parameter is greater than the lower limit value of the first value range, the value of the lower limit value of the second value range is determined to be the difference between the absolute value of the reference point of the second value range and the third parameter.

[0088] It can be seen from the above formula (6) that, under the constraint of the fourth function, when the sum of the absolute values ​​of the reference point of the second value range and the third parameter is less than the upper limit value of the first value range, the upper limit value of the second value range is determined to be the sum of the absolute values ​​of the reference point of the second value range and the third parameter; when the sum of the absolute values ​​of the reference point of the second value range and the third parameter is greater than the upper limit value of the first value range, the upper limit value of the second value range is determined to be the upper limit value of the first value range.

[0089] A5. Based on the lower limit value, the upper limit value, and the first value range of the second value range, obtain the second value range corresponding to the second indication information.

[0090] It should be understood that I 2,min and i 2,max Afterwards, [i 2,min ,i 2,max ] is the second value range.

[0091] As an example, in order to ensure the accuracy of the second value range and avoid errors, the intersection of the second value range and the first value range can be used as the second value range corresponding to the second indication information, that is, [i 2,min ,i 2,max ]∩I is the second value range corresponding to the second indication information, and I is the first value range.

[0092] Example 2: The first configuration information includes a second parameter, a fourth parameter, a fifth parameter, a second function, a third function, and a fourth function.

[0093] The fourth parameter represents the distance between the reference point of the second value range and the lower limit of the second value range, and the fifth parameter represents the distance between the reference point of the second value range and the upper limit of the second value range. For the description of the second parameter, the second function, the third function, and the fourth function, refer to the corresponding descriptions in Example 1 above and are not repeated here.

[0094] As a possible example, based on Example 2, the above-mentioned determination of the second value range corresponding to the second indication information from the first value range based on the first indication information and the first configuration information may include the following steps B1 to B5.

[0095] B1. Determine a second value based on the first indication information and the second parameter.

[0096] B2. Determine a reference point of the second value range based on the second value, the first value range, and the second function.

[0097] For the description of B1 to B2, please refer to the above description of A1 to A2, which will not be repeated here.

[0098] B3. Based on the reference point of the second value range, the fourth parameter and the third function, obtain an optional lower limit value of the second indication information.

[0099] B4. Obtain an optional upper limit value of the second indication information based on the reference point of the second value range, the fifth parameter, and the fourth function.

[0100] Illustratively, B3 and B4 may be expressed as shown in the following formulas (7) and (8).

[0101] Among them, in the above formulas (7) and (8), i 2,min is the lower limit of the second value range, i 2,max is the upper limit of the second value range, i min is the lower limit of the first value range, i max is the upper limit of the first value range, δ 1,2,L is the fourth parameter, δ 1,2,R is the fifth parameter.

[0102] It can be seen from the above formula (7) that, under the constraint of the third function, when the difference between the absolute value of the reference point of the second value range and the fourth parameter is less than the lower limit value of the first value range, the value of the lower limit value of the second value range is determined to be the lower limit value of the first value range; when the difference between the absolute value of the reference point of the second value range and the fourth parameter is greater than the lower limit value of the first value range, the value of the lower limit value of the second value range is determined to be the difference between the absolute value of the reference point of the second value range and the fourth parameter.

[0103] It can be seen from the above formula (8) that, under the constraint of the fourth function, when the sum of the absolute values ​​of the reference point of the second value range and the fifth parameter is less than the upper limit value of the first value range, the upper limit value of the second value range is determined to be the sum of the absolute values ​​of the reference point of the second value range and the fifth parameter; when the sum of the absolute values ​​of the reference point of the second value range and the fifth parameter is greater than the upper limit value of the first value range, the upper limit value of the second value range is determined to be the upper limit value of the first value range.

[0104] B5. Obtain a second value range corresponding to the second indication information based on the lower limit value, the upper limit value, and the first value range of the second value range.

[0105] For the description of B5, please refer to the above description of A5, which will not be repeated here.

[0106] It should be understood that in the above example 1, the reference point of the second value range can be understood as the center point of the second value range. 1,2,L The value of δ 1,2,R When the values ​​of are the same, the reference point of the second value range can also be understood as the center point of the second value range. 1,2,L The value of δ 1,2,R If the value of is different, the reference point of the second value range is not the center point of the second value range, and can be understood as the reference point of the second value range.

[0107] S202: Obtain second indication information based on a second value range corresponding to the second indication information and measurement of a second channel measurement reference signal.

[0108] In some embodiments, when the second value range corresponding to the second indication information is obtained, after the terminal receives the second measurement reference signal sent by the network side, the second channel measurement reference signal can be measured to obtain the second channel information, and then the second indication information can be obtained based on the second channel information and the second value range corresponding to the second indication information.

[0109] Based on the embodiment shown in Figure 4, after obtaining the first indication information, the second value range corresponding to the second indication information can be obtained based on the first indication information and the first configuration information. Then, after receiving the second channel measurement reference signal, the second indication information can be obtained based on the second value range corresponding to the second indication information and the second channel information. In this way, the second indication information can be determined from a relatively small second value range, avoiding the need to determine the second indication information from a relatively large first value range. This narrows the value range of the second indication information, thereby reducing the processing complexity of obtaining channel information, helping to subsequently reduce the overhead of feedback indication information and improve the performance of the communication system.

[0110] In some embodiments, as shown in FIG5 , the above step S102 may include the following steps S301 and S302 .

[0111] S301. Determine a third value range based on first indication information and first configuration information.

[0112] The third value range may be understood as an unselectable range of the second indication information.

[0113] In some embodiments, after obtaining the first indication information, in order to quickly obtain the second indication information and reduce the processing complexity of obtaining channel information, the terminal can determine the unselectable range of the second indication information based on the first indication information and the first configuration information, that is, determine the third value range, and then determine the second value range corresponding to the second indication information based on the unselectable range of the second indication information.

[0114] The following describes how to determine the third value range based on the first indication information and the first configuration information with reference to several examples.

[0115] Example 3: The first configuration information includes a sixth parameter, a seventh parameter, a fifth function, a sixth function, and a seventh function.

[0116] Among them, the sixth parameter is used to characterize the distance between the first indication information and the reference point of the third value range; the seventh parameter is used to characterize the size of the third value range; the fifth function is used to constrain the reference point of the third value range to be within the first value range; the sixth function is used to constrain the lower limit value of the third value range to be within the first value range; and the seventh function is used to constrain the upper limit value of the third value range to be within the first value range.

[0117] As a possible example, based on Example 3, the above-mentioned determination of the third value range based on the first indication information and the first configuration information may include the following steps C1 to C5.

[0118] C1. Determine a third value based on the first indication information and the sixth parameter.

[0119] The third value may be the sum of the first indication information and the sixth parameter, or the difference between the first indication information and the sixth parameter, the quotient of the first indication information and the sixth parameter, the product of the first indication information and the sixth parameter, etc., and this is not limited in the present embodiment. For ease of description, the present embodiment takes the sum of the first indication information and the sixth parameter as an example for explanation.

[0120] C2. Determine a reference point of the third value range based on the third value, the first value range, and the fifth function.

[0121] Exemplarily, C2 may be expressed as shown in the following formula (9) and formula (10).

[0122] Among them, in the above formula (9)-formula (10), is the reference point of the third value range, is the fifth function, Δi 1,2 3 is the sixth parameter, i1+Δi 1,2 3 The third value.

[0123] It can be seen from the above formulas (9) and (10) that, under the constraints of the fifth function, when the third value is within the first value range, the value of the reference point of the third value range is determined to be the third value. When the third value is greater than the upper limit of the first value range, the value of the reference point of the third value range is determined to be the upper limit of the first value range. When the third value is less than the lower limit of the first value range, the value of the reference point of the third value range is determined to be the lower limit of the first value range.

[0124] C3. Based on the reference point of the third value range, the seventh parameter and the sixth function, a lower limit value of the third value range is obtained.

[0125] C4. Obtain an upper limit value of the third value range based on the reference point of the third value range, the seventh parameter, and the seventh function.

[0126] Exemplarily, C3 and C4 may be expressed as shown in the following formulas (11) and (12).

[0127] Among them, in the above formula (11) and formula (12), i 3,min is the lower limit of the third value range, i 3,max is the upper limit of the third value range, i min is the lower limit of the first value range, i maxis the upper limit of the first value range, δ 1,2 ' is the seventh parameter, is the sixth function, is the seventh function.

[0128] It can be seen from the above formula (11) that, under the constraint of the sixth function, when the difference between the absolute value of the reference point of the third value range and the seventh parameter is less than the lower limit value of the first value range, the value of the lower limit value of the third value range is determined to be the lower limit value of the first value range; when the difference between the absolute value of the reference point of the third value range and the seventh parameter is greater than the lower limit value of the first value range, the value of the lower limit value of the third value range is determined to be the difference between the absolute value of the reference point of the third value range and the seventh parameter.

[0129] It can be seen from the above formula (12) that, under the constraint of the seventh function, when the sum of the absolute values ​​of the reference point of the third value range and the seventh parameter is less than the upper limit value of the first value range, the upper limit value of the third value range is determined to be the sum of the absolute values ​​of the reference point of the third value range and the third parameter; when the sum of the absolute values ​​of the reference point of the third value range and the seventh parameter is greater than the upper limit value of the first value range, the upper limit value of the third value range is determined to be the upper limit value of the first value range.

[0130] C5. Obtain a third value range based on the lower limit value, the upper limit value, and the first value range of the third value range.

[0131] In getting i 3,min and i 3,max Afterwards, [i 3,min ,i 3,max ] is the third value range.

[0132] As an example, in order to ensure the accuracy of the third value range and avoid errors, the intersection of the third value range and the first value range can be used as the third value range, that is, [i 3,min ,i 3,max ]∩I as the third value range.

[0133] Example 4: The first configuration information includes a sixth parameter, an eighth parameter, a ninth parameter, a fifth function, a sixth function, and a seventh function.

[0134] Among them, the sixth parameter is used to characterize the distance between the first indication information and the reference point of the third value range; the eighth parameter is used to characterize the distance between the reference point of the third value range and the lower limit value of the third value range; the ninth parameter is used to characterize the distance between the reference point of the third value range and the upper limit value of the third value range; the fifth function is used to constrain the reference point of the third value range to be within the first value range; the sixth function is used to constrain the lower limit value of the third value range to be within the first value range; and the seventh function is used to constrain the upper limit value of the third value range to be within the first value range.

[0135] As a possible example, based on Example 4, the above-mentioned determination of the third value range based on the first indication information and the first configuration information may include the following steps D1 to D5.

[0136] D1. Determine a third value based on the first indication information and the sixth parameter.

[0137] D2. Determine a reference point of the third value range based on the third value, the first value range, and the fifth function.

[0138] For the description of D1 to D2, please refer to the above description of C1 to C2, which will not be repeated here.

[0139] D3. Determine a lower limit value of the third value range based on the reference point of the third value range, the eighth parameter, and the sixth function.

[0140] D4. Determine an upper limit value of the third value range based on the reference point of the third value range, the ninth parameter, and the seventh function.

[0141] Illustratively, D3 and D4 may be as shown in the following formulas (13) and (14).

[0142] Among them, in the above formula (13) and formula (14), i 3,min is the lower limit of the third value range, i 3,max is the upper limit of the third value range, i min is the lower limit of the first value range, i max is the upper limit of the first value range, δ 1,2,L ' is the eighth parameter, δ 1,2,R ' is the ninth parameter.

[0143] It can be seen from the above formula (13) that, under the constraint of the sixth function, when the difference between the absolute value of the reference point of the third value range and the eighth parameter is less than the lower limit value of the first value range, the value of the lower limit value of the third value range is determined to be the lower limit value of the first value range; when the difference between the absolute value of the reference point of the third value range and the eighth parameter is greater than the lower limit value of the first value range, the value of the lower limit value of the third value range is determined to be the difference between the absolute value of the reference point of the third value range and the eighth parameter.

[0144] It can be seen from the above formula (14) that, under the constraint of the seventh function, when the sum of the absolute values ​​of the reference point of the third value range and the ninth parameter is less than the upper limit value of the first value range, the upper limit value of the third value range is determined to be the sum of the absolute values ​​of the reference point of the third value range and the ninth parameter; when the sum of the absolute values ​​of the reference point of the third value range and the ninth parameter is greater than the upper limit value of the first value range, the upper limit value of the third value range is determined to be the upper limit value of the first value range.

[0145] D5. Obtain a third value range based on the lower limit value, the upper limit value, and the first value range of the third value range.

[0146] For the description of D5, please refer to the above description of C5, which will not be repeated here.

[0147] S302: Exclude the third value range from the first value range to obtain a second value range.

[0148] It can be seen from the above description that the third value range may be an unselectable range of the second indication information. Therefore, after obtaining the third value range, the third value range may be excluded from the first value range to obtain the second value range.

[0149] Exemplarily, the relationship among the first value range, the second value range, and the third value range can be shown as the following formula (15).

[0150] R=I-[i 3,min ,i 3,max ] Formula (15);

[0151] Wherein, R is the second value range.

[0152] As an example, in order to ensure the accuracy of the second value range and avoid errors, the relationship between the first value range, the second value range and the third value range can be shown as the following formula (16).

[0153] R=I-[i 3,min ,i 3,max]∩I formula (16);

[0154] in, i is a value in the third value range.

[0155] Based on the embodiment shown in Figure 5, after the terminal obtains the first indication information, the terminal can determine the unselectable range of the second indication information based on the first indication information and the first configuration information, that is, determine the third value range, and then determine the second value range corresponding to the second indication information based on the unselectable range of the second indication information and the first value range, and then determine the second indication information from the second value range, avoiding determining the second indication information from the larger first value range, thereby reducing the processing complexity of obtaining channel information, helping to subsequently reduce the overhead of feedback indication information, and improving the performance of the communication system.

[0156] In some embodiments, as shown in FIG6 , an embodiment of the present disclosure further provides a method for acquiring channel information. The method is applied to a terminal, which may be the terminal 110 shown in FIG2 . The method includes the following steps S401 to S403 .

[0157] S401: Obtain second configuration information.

[0158] In some embodiments, in order to quickly obtain the first indication information corresponding to the first channel information and the second indication information corresponding to the second channel information to reduce the processing complexity of obtaining the channel information, the terminal obtains the second configuration information before receiving the first channel measurement reference signal and the second channel measurement reference signal to determine the value range of the first indication information and the value range of the second indication information. The second configuration information is used to configure the correspondence between the first indication information corresponding to the first channel information and the second indication information corresponding to the second channel information in terms of the value range. The second configuration information is pre-configured or configured on the network side. The terminal obtains the second configuration information by obtaining the pre-configured second configuration information from its own memory or by receiving the second configuration information sent by the network side. The embodiment of the present disclosure does not limit the way in which the terminal obtains the second configuration information.

[0159] S402: Obtain first indication information based on the second configuration information and measurement of a first channel sounding reference signal.

[0160] In some embodiments, after receiving the first channel measurement reference signal and the second channel measurement reference signal, the terminal can measure the first channel measurement reference signal to obtain first channel information, and then obtain first indication information corresponding to the first channel information based on the first channel information and the second configuration information.

[0161] In some embodiments, the second configuration information includes at least one configuration parameter in the fourth value range of the first indication information and at least one configuration parameter in the fifth value range of the second indication information, where each fourth value range corresponds to a fifth value range. In other words, the value range of the first indication information is associated with the value range of the second indication information.

[0162] It should be noted that a fourth value range can be an optional range of the first indication information, that is, the first indication information can be determined from the fourth value range, or it can be an unselectable range of the first indication information, that is, the first indication information cannot be determined from the fourth value range. A fifth value range can be an optional range of the second indication information, that is, the second indication information can be determined from the fifth value range, or it can be an unselectable range of the second indication information, that is, the second indication information cannot be determined from the fifth value range. Regarding how the terminal determines that the at least one fourth value range and the at least one fifth value range indicated by the second configuration information are optional ranges or unselectable ranges for the first indication information and the second indication information, respectively, the terminal and the network side may pre-negotiate that the at least one fourth value range and the at least one fifth value range indicated by the second configuration information are optional ranges or unselectable ranges for the first indication information and the second indication information, or the network side may send indication information to the terminal before the terminal receives the first channel measurement reference signal and the second channel measurement reference signal, and the indication information is used to indicate that the at least one fourth value range and the at least one fifth value range indicated by the second configuration information are optional ranges or unselectable ranges for the first indication information and the second indication information, respectively. This embodiment of the present disclosure does not limit this.

[0163] In some embodiments, the second configuration information includes a first value range, and the value of the first indication information and the value of the second indication information both belong to the first value range.

[0164] As an example, obtaining the first indication information based on the second configuration information and measurement of the first channel sounding reference signal may be performed by the terminal based on a target fourth value range and measurement of the first channel sounding reference signal, where the target fourth value range is one of the at least one fourth value range.

[0165] In some embodiments, the target fourth value range may be pre-negotiated between the terminal and the network side, or may be indicated by the network side, and the embodiments of the present disclosure do not limit this.

[0166] As can be seen from the above description of the second configuration information, the second configuration information includes at least one configuration parameter in the fourth value range of the first indication information. After obtaining the second configuration information, the terminal can obtain the at least one fourth value range of the first indication information based on the at least one configuration parameter in the fourth value range. After receiving the first channel sounding reference signal, the terminal can measure the first channel sounding reference signal to obtain first channel information, and then obtain the first indication information based on the first channel information and the target fourth value range.

[0167] In some embodiments, the configuration parameter of the fourth value range includes an upper limit value of the fourth value range and a lower limit value of the fourth value range. For each fourth value range in at least one fourth value range, the terminal can obtain the fourth value range based on the upper limit value and the lower limit value of the fourth value range.

[0168] S403: Obtain second indication information based on the second configuration information and measurement of a second channel sounding reference signal.

[0169] As an example, the second indication information is obtained based on the second configuration information and the measurement of the second channel sounding reference signal. The terminal may obtain the second indication information based on the target fifth value range and the measurement of the second channel sounding reference signal. The target fifth value range is one of the at least one fifth value range.

[0170] In some embodiments, the target fifth value range may be pre-negotiated between the terminal and the network side, or may be indicated by the network side, and the embodiments of the present disclosure do not limit this.

[0171] As can be seen from the above description of the second configuration information, the second configuration information includes at least one configuration parameter in the fifth value range of the second indication information. After obtaining the second configuration information, the terminal can obtain the at least one fifth value range of the second indication information based on the at least one configuration parameter in the fifth value range. After receiving the second channel sounding reference signal, the terminal can measure the second channel sounding reference signal to obtain second channel information, and then obtain the second indication information based on the second channel information and the target fifth value range.

[0172] In some embodiments, the configuration parameter of the fifth value range includes an upper limit value of the fifth value range and a lower limit value of the fifth value range. For each fifth value range in at least one fifth value range, the terminal can obtain the fifth value range based on the upper limit value and the lower limit value of the fifth value range.

[0173] It should be noted that the embodiment of the present disclosure does not limit the execution order of step S402 and step S403. For example, step S402 may be executed first, and then step S403; for another example, step S403 may be executed first, and then step S402; for another example, step S402 and step S403 may be executed simultaneously.

[0174] The second configuration information is described below with reference to several specific examples.

[0175] For example, taking the second configuration information including a configuration parameter in the fourth value range and a configuration parameter in the fifth value range as an example, assuming that the second configuration information is (S 1,min ,S 1,max ,S 2,min ,S 2,max ), where S 1,min is the lower limit of the fourth value range, S 1,max is the upper limit of the fourth value range, S 2,min is the lower limit of the fifth value range, S 2,max It is the upper limit of the fifth value range.

[0176] In the case where the terminal and the network side have pre-negotiated or the network side has pre-indicated that the fourth value range is the optional range of the first indication information and the fifth value range is the optional range of the second indication information, the terminal can select [S 1,min ,S 1,max ]∩I determine the first indication information, and based on the second channel information, from [S 2,min ,S 2,max ]∩I determines the second indication information, where I is the first value range.

[0177] In the case where the terminal and the network side have pre-negotiated or the network side has pre-indicated that the fourth value range is an unselectable range of the first indication information and the fifth value range is an unselectable range of the second indication information, the terminal can, based on the first channel information, select R1=I-[S 1,min ,S 1,max ]∩I to determine the first indication information, and based on the second channel information, from R2=I-[S 2,min ,S 2,max ]∩I determines the second indication information, R1 is the optional range of the first indication information, and R2 is the optional range of the second indication information.

[0178] For example, taking the second configuration information including two configuration parameters in the fourth value range and two configuration parameters in the fifth value range as an example, assuming that the second configuration information is (S 1,1,min ,S 1,1,max ,S 1,2,min ,S1,2,max ,S 2,1,min ,S 2,1,max ,S 2,2,min ,S 2,2,max ), where S 1,1,min is the lower limit of the first fourth value range, S 1,1,max is the upper limit of the first fourth value range, S 1,2,min is the lower limit of the second fourth value range, S 1,2,max is the upper limit of the second fourth value range, S 2,1,min is the lower limit of the first fifth value range, S 2,1,max is the upper limit of the first fifth value range, S 2,2,min is the lower limit of the second fifth value range, S 2,2,max is the upper limit of the second fifth value range. The first fourth value range corresponds to the first fifth value range, and the second fourth value range corresponds to the second fifth value range.

[0179] In the case where the terminal and the network side have pre-negotiated or the network side has pre-indicated that the fourth value range is the optional range of the first indication information and the fifth value range is the optional range of the second indication information, the terminal can select [S 1,1,min ,S 1,1，max ]∩I determine the first indication information, and based on the second channel information, from [S 2,1,min ,S 2,1,max ]∩I determines the second indication information.

[0180] Alternatively, the terminal may obtain the first channel information from [S 1,2,min ,S 1,2,max ]∩I determine the first indication information, and based on the second channel information, from [S 2,2,min ,S 2,2,max ]∩I determines the second indication information.

[0181] In the case where the terminal and the network side have pre-negotiated or the network side has pre-indicated that the fourth value range is an unselectable range of the first indication information and the fifth value range is an unselectable range of the second indication information, the terminal can, based on the first channel information, select R3=I-[S 1,1,min ,S 1,1,max ]∩I to determine the first indication information, and based on the second channel information, from R4=I-[S 2,1,min ,S 2,1,max ]∩I determines the second indication information, R3 is the optional range of the first indication information, and R4 is the optional range of the second indication information.

[0182] Alternatively, the terminal may select R5=I-[S 1,2,min,S 1,2,max ]∩I to determine the first indication information, and based on the second channel information, from R6=I-[S 2,2,min ,S 2,2,max ]∩I determines the second indication information, R5 is the optional range of the first indication information, and R6 is the optional range of the second indication information.

[0183] It should be noted that the above embodiments in which the second configuration information includes one configuration parameter in the fourth value range and one configuration parameter in the fifth value range, or the second configuration information includes two configuration parameters in the fourth value range and two configuration parameters in the fifth value range, are merely exemplary. The embodiments of the present disclosure do not limit the number of configuration parameters in the fourth value range and configuration parameters in the fifth value range included in the second configuration information.

[0184] Based on the embodiment shown in Figure 6, the terminal obtains the second configuration information to associate the value ranges of the independent first indication information and the second indication information, narrows the selection range of the first indication information and the second indication information, and avoids determining the first indication information and the second indication information from a larger first value range, thereby reducing the processing complexity of obtaining channel information, helping to subsequently reduce the overhead of feedback indication information and improve the performance of the communication system.

[0185] In some embodiments, after obtaining the first indication information and the second indication information, that is, after the above step S102 or step S403, as shown in Figure 7, the method may also include the following steps: S501, sending the first indication information and the second indication information to the network side.

[0186] The network side may be a base station, an antenna array panel on the base station, or an antenna element port on the antenna array panel on the base station. The first indication information is used to indicate first channel information, and the second indication information is used to indicate second channel information.

[0187] The above mainly introduces the solution provided by the present disclosure from the perspective of the interaction between each node. It is understandable that each node, such as a terminal, includes a hardware structure and / or software module corresponding to the execution of each function in order to realize the above functions. Those skilled in the art should easily realize that, in combination with the algorithm steps of each example described in the embodiments disclosed herein, 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.

[0188] FIG8 is a schematic diagram showing the composition of a communication device provided by an embodiment of the present disclosure. As shown in FIG8 , the communication device 60 includes a processing unit 601 and a sending unit 602 .

[0189] The communication device 60 may be the terminal or a chip in the terminal. When the communication device 60 is used to implement the functions of the terminal in the above embodiment, each unit is specifically used to implement the following functions.

[0190] Processing unit 601 is used to: obtain first indication information corresponding to the first channel information based on the measurement of the first channel measurement reference signal; obtain second indication information corresponding to the second channel information based on the first indication information and the first configuration information, and the first configuration information is used to configure the relationship between the first indication information and the second indication information.

[0191] In some embodiments, the first configuration information includes a first parameter and a first function, wherein the first parameter is used to represent the interval between the first indication information and the second indication information, and the interval is an integer; and the first function is used to constrain the value of the second indication information to be within a first value range.

[0192] In some embodiments, the first function is specifically used to: when the first value is within the first value range, determine the value of the second indication information to be the first value; when the first value is greater than the upper limit value of the first value range, determine the value of the second indication information to be the upper limit value of the first value range; when the first value is less than the lower limit value of the first value range, determine the value of the second indication information to be the lower limit value of the first value range; wherein the first value is determined based on the value of the first indication information and the first parameter.

[0193] In some embodiments, the processing unit 601 is specifically used to: determine the second value range corresponding to the second indication information from the first value range based on the first indication information and the first configuration information; obtain the second indication information based on the second value range corresponding to the second indication information and the measurement of the second channel measurement reference signal.

[0194] In some embodiments, the first configuration information includes a second parameter, a third parameter, a second function, a third function, and a fourth function. The second parameter is used to represent the distance between the first indication information and a reference point of the second value range; the third parameter is used to represent the size of the second value range; the second function is used to constrain the reference point of the second value range to be within the first value range; the third function is used to constrain the lower limit of the second value range to be within the first value range; and the fourth function is used to constrain the upper limit of the second value range to be within the first value range.

[0195] In some embodiments, the first configuration information includes a second parameter, a fourth parameter, a fifth parameter, a second function, a third function, and a fourth function. The second parameter is used to represent the distance between the first indication information and a reference point of the second value range; the fourth parameter is used to represent the distance between the reference point of the second value range and the lower limit of the second value range; the fifth parameter is used to represent the distance between the reference point of the second value range and the upper limit of the second value range; the second function is used to constrain the reference point of the second value range to be within the first value range; the third function is used to constrain the lower limit of the second value range to be within the first value range; and the fourth function is used to constrain the upper limit of the second value range to be within the first value range.

[0196] In some embodiments, the processing unit 601 is specifically configured to: determine a third value range based on the first indication information and the first configuration information; and exclude the third value range from the first value range to obtain a second value range.

[0197] In some embodiments, the first configuration information includes a sixth parameter, a seventh parameter, a fifth function, a sixth function, and a seventh function. The sixth parameter is used to represent the distance between the first indication information and a reference point in the third value range; the seventh parameter is used to represent the size of the third value range; the fifth function is used to constrain the reference point in the third value range to be within the first value range; the sixth function is used to constrain the lower limit of the third value range to be within the first value range; and the seventh function is used to constrain the upper limit of the third value range to be within the first value range.

[0198] In some embodiments, the first configuration information includes a sixth parameter, an eighth parameter, a ninth parameter, a fifth function, a sixth function, and a seventh function. The sixth parameter is used to represent the distance between the first indication information and a reference point in the third value range; the eighth parameter is used to represent the distance between the reference point in the third value range and the lower limit of the third value range; the ninth parameter is used to represent the distance between the reference point in the third value range and the upper limit of the third value range; the fifth function is used to constrain the reference point in the third value range to be within the first value range; the sixth function is used to constrain the lower limit of the third value range to be within the first value range; and the seventh function is used to constrain the upper limit of the third value range to be within the first value range.

[0199] In some embodiments, the first indication information and the second indication information are precoding matrix indication information.

[0200] In some embodiments, the first configuration information is pre-configured or configured on the network side.

[0201] In some embodiments, the sending unit 602 is configured to send the first indication information and the second indication information to the network side.

[0202] FIG9 is a schematic diagram showing the composition of another communication device provided by an embodiment of the present disclosure. As shown in FIG9 , the communication device 70 includes an acquisition unit 701 and a processing unit 702. In some embodiments, the communication device 70 further includes a sending unit 703.

[0203] The communication device 70 may be the terminal or a chip in the terminal. When the communication device 70 is used to implement the functions of the terminal in the above embodiment, each unit is specifically used to implement the following functions.

[0204] The acquiring unit 701 is configured to acquire second configuration information, where the second configuration information is used to configure a corresponding relationship between first indication information corresponding to the first channel information and second indication information corresponding to the second channel information in terms of value ranges.

[0205] The processing unit 702 is configured to obtain first indication information based on the second configuration information and the measurement of the first channel sounding reference signal; and obtain second indication information based on the second configuration information and the measurement of the second channel sounding reference signal.

[0206] In some embodiments, the second configuration information includes at least one configuration parameter of the first indication information in a fourth value range and at least one configuration parameter of the second indication information in a fifth value range, and each fourth value range corresponds to one fifth value range.

[0207] In some embodiments, the processing unit 702 is specifically configured to obtain the first indication information based on the target fourth value range and the measurement of the first channel measurement reference signal, where the target fourth value range is one of the at least one fourth value range.

[0208] In some embodiments, the processing unit 702 is specifically used to obtain second indication information based on the target fifth value range and the measurement of the second channel measurement reference signal, where the target fifth value range is the fifth value range in at least one fifth value range corresponding to the target fourth value range.

[0209] In some embodiments, the configuration parameter of the fourth value range includes an upper limit value of the fourth value range and a lower limit value of the fourth value range.

[0210] In some embodiments, the configuration parameter of the fifth value range includes an upper limit value of the fifth value range and a lower limit value of the fifth value range.

[0211] In some embodiments, the first indication information and the second indication information are precoding matrix indication information.

[0212] In some embodiments, the second configuration information is pre-configured or configured on the network side.

[0213] In some embodiments, the sending unit 703 is configured to send the first indication information and the second indication information to the network side.

[0214] It should be noted that the units in Figures 8 and 9 may also be referred to as modules. For example, the processing unit may be referred to as a processing module. In addition, in the embodiments shown in Figures 8 and 9, the names of the units may not be those shown in the figures. For example, the acquisition unit may be referred to as a communication unit, and the sending unit may be referred to as a communication unit.

[0215] If the various units in Figures 8 and 9 are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present disclosure is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the various embodiments of the present disclosure. The storage medium for storing computer software products includes various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0216] When the communication device 60 or 70 implements the functions of the integrated modules in hardware, the present disclosure provides a schematic structural diagram of the communication device. As shown in Figure 10, the communication device 80 includes: a processor 802, a communication interface 803, and a bus 804. Optionally, the communication device 80 may also include a memory 801.

[0217] Processor 802 may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the present disclosure. Processor 802 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. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the present disclosure. Processor 802 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, or a combination of a DSP and a microprocessor.

[0218] The communication interface 803 is used to connect to other devices via a communication network, such as Ethernet, wireless access network, or wireless local area network (WLAN).

[0219] The memory 801 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.

[0220] As a possible implementation, the memory 801 may exist independently of the processor 802. The memory 801 may be connected to the processor 802 via a bus 804 and used to store instructions or program codes. When the processor 802 calls and executes the instructions or program codes stored in the memory 801, the channel information acquisition method provided in the embodiment of the present disclosure can be implemented.

[0221] In another possible implementation, the memory 801 may also be integrated with the processor 802 .

[0222] Bus 804 can be an Extended Industry Standard Architecture (EISA) bus, etc. Bus 804 can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, FIG10 shows only one thick line, but this does not mean that there is only one bus or only one type of bus.

[0223] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and conciseness of the description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the terminal can be divided into different functional modules to complete all or part of the functions described above.

[0224] The present disclosure also provides a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium). All or part of the processes in the above-mentioned method embodiments can be completed by computer instructions to instruct the relevant hardware, and the program can be stored in the above-mentioned computer-readable storage medium. When the program is executed, it may include processes such as the above-mentioned method embodiments. The computer-readable storage medium may be the memory or memory of any of the aforementioned embodiments. The above-mentioned computer-readable storage medium may also be an external storage device of the above-mentioned terminal, such as a plug-in hard disk, a smart memory card (smart media card, SMC), a secure digital (secure digital, SD) card, a flash card (flash card), etc. equipped on the above-mentioned terminal. Further, the above-mentioned computer-readable storage medium may also include both the internal storage unit of the above-mentioned terminal and an external storage device. The above-mentioned computer-readable storage medium is used to store the above-mentioned computer program and other programs and data required by the above-mentioned terminal. The above-mentioned computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.

[0225] An embodiment of the present disclosure further provides a computer program product, which includes a computer program. When the computer program product is run on a computer, the computer is enabled to execute any one of the channel information acquisition methods provided in the above embodiments.

[0226] Although the present disclosure is described herein in conjunction with various embodiments, in the process of implementing the disclosure for which protection is sought, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple components. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0227] Although the present disclosure has been described with reference to specific features and embodiments thereof, it will be apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present disclosure. Accordingly, this specification and the drawings are merely illustrative of the present disclosure as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present disclosure. Obviously, those skilled in the art may make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, the present disclosure is intended to encompass such modifications and variations if they fall within the scope of the claims of the present disclosure and their equivalents.

[0228] The above are only specific embodiments 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 method for acquiring channel information, wherein: The method comprises: Obtaining first indication information corresponding to the first channel information based on measurement of the first channel measurement reference signal; Based on the first indication information and the first configuration information, second indication information corresponding to the second channel information is obtained, where the first configuration information is used to configure a relationship between the first indication information and the second indication information.

2. The method according to claim 1, wherein: The first configuration information includes a first parameter and a first function; wherein the first parameter is used to characterize the distance between the first indication information and the second indication information, and the distance is an integer; and the first function is used to constrain the value of the second indication information to be within a first value range.

3. The method according to claim 2, wherein: The first function is specifically used for: When the first value is within the first value range, determining that the value of the second indication information is the first value; When the first value is greater than an upper limit of the first value range, determining that the value of the second indication information is an upper limit of the first value range; When the first value is less than the lower limit of the first value range, determine that the value of the second indication information is the lower limit of the first value range; The first value is determined according to the value of the first indication information and the first parameter.

4. The method according to claim 1, wherein: The obtaining, based on the first indication information and the first configuration information, second indication information corresponding to the second channel information includes: Based on the first indication information and the first configuration information, determine a second value range corresponding to the second indication information from the first value range; The second indication information is obtained based on a second value range corresponding to the second indication information and measurement of a second channel measurement reference signal.

5. The method according to claim 4, wherein: The first configuration information includes a second parameter, a third parameter, a second function, a third function and a fourth function; wherein the second parameter is used to characterize the distance between the first indication information and the reference point of the second value range; the third parameter is used to characterize the size of the second value range; the second function is used to constrain the reference point of the second value range to be within the first value range; the third function is used to constrain the lower limit value of the second value range to be within the first value range; and the fourth function is used to constrain the upper limit value of the second value range to be within the first value range.

6. The method according to claim 4, wherein: The first configuration information includes a second parameter, a fourth parameter, a fifth parameter, a second function, a third function and a fourth function; wherein the second parameter is used to characterize the distance between the first indication information and the reference point of the second value range; the fourth parameter is used to characterize the distance between the reference point of the second value range and the lower limit value of the second value range; the fifth parameter is used to characterize the distance between the reference point of the second value range and the upper limit value of the second value range; the second function is used to constrain the reference point of the second value range to be within the first value range; the third function is used to constrain the lower limit value of the second value range to be within the first value range; and the fourth function is used to constrain the upper limit value of the second value range to be within the first value range.

7. The method according to claim 4, wherein: The determining, based on the first indication information and the first configuration information, a second value range corresponding to the second indication information from a first value range includes: Determine a third value range based on the first indication information and the first configuration information; The third value range is excluded from the first value range to obtain the second value range.

8. The method according to claim 7, wherein: The first configuration information includes a sixth parameter, a seventh parameter, a fifth function, a sixth function and a seventh function; wherein the sixth parameter is used to characterize the distance between the first indication information and the reference point of the third value range; the seventh parameter is used to characterize the size of the third value range; the fifth function is used to constrain the reference point of the third value range to be within the first value range; the sixth function is used to constrain the lower limit value of the third value range to be within the first value range; and the seventh function is used to constrain the upper limit value of the third value range to be within the first value range.

9. The method according to claim 7, wherein: The first configuration information includes a sixth parameter, an eighth parameter, a ninth parameter, a fifth function, a sixth function and a seventh function; wherein the sixth parameter is used to characterize the distance between the first indication information and the reference point of the third value range; the eighth parameter is used to characterize the distance between the reference point of the third value range and the lower limit value of the third value range; the ninth parameter is used to characterize the distance between the reference point of the third value range and the upper limit value of the third value range; the fifth function is used to constrain the reference point of the third value range to be within the first value range; the sixth function is used to constrain the lower limit value of the third value range to be within the first value range; and the seventh function is used to constrain the upper limit value of the third value range to be within the first value range.

10. The method according to claim 1, wherein: The first indication information and the second indication information are precoding matrix indication information.

11. The method according to claim 1, wherein: The first configuration information is pre-configured or configured on the network side.

12. The method according to claim 1, wherein: The method further comprises: The first indication information and the second indication information are sent to the network side.

13. A method for acquiring channel information, wherein: The method comprises: Acquire second configuration information, where the second configuration information is used to configure a correspondence between first indication information corresponding to the first channel information and second indication information corresponding to the second channel information in a value range; Obtaining the first indication information based on the second configuration information and measurement of a first channel measurement reference signal; The second indication information is obtained based on the second configuration information and measurement of a second channel measurement reference signal.

14. The method according to claim 13, wherein: The second configuration information includes at least one configuration parameter of the first indication information in a fourth value range and at least one configuration parameter of the second indication information in a fifth value range, and each of the fourth value ranges corresponds to one of the fifth value ranges.

15. The method according to claim 14, wherein: The obtaining the first indication information based on the second configuration information and the measurement of the first channel measurement reference signal includes: The first indication information is obtained based on a target fourth value range and measurement of the first channel measurement reference signal, where the target fourth value range is one of the at least one fourth value range.

16. The method according to claim 15, wherein: The obtaining the second indication information based on the second configuration information and the measurement of the second channel measurement reference signal includes: The second indication information is obtained based on a target fifth value range and measurement of the second channel measurement reference signal, wherein the target fifth value range is a fifth value range in the at least one fifth value range corresponding to the target fourth value range.

17. The method according to claim 14, wherein: The configuration parameters of the fourth value range include an upper limit value of the fourth value range and a lower limit value of the fourth value range.

18. The method according to claim 14, wherein: The configuration parameters of the fifth value range include an upper limit value of the fifth value range and a lower limit value of the fifth value range.

19. The method according to claim 13, wherein: The first indication information and the second indication information are precoding matrix indication information.

20. The method according to claim 13, wherein: The second configuration information is pre-configured or configured on the network side.

21. The method according to claim 13, wherein: The method further comprises: The first indication information and the second indication information are sent to the network side.

22. A communication device, wherein: include: Processor and memory; The memory stores instructions executable by the processor; When the processor is configured to execute the instructions, the communication device implements the method according to any one of claims 1 to 21.

23. A computer-readable storage medium, wherein: The computer-readable storage medium comprises computer instructions, which, when executed on a computer, cause the computer to perform the method according to any one of claims 1 to 21.

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