Information processing method and communication apparatus

Abstract

The present disclosure relates to an information processing method and a communication apparatus. The information processing method comprises: a first device determining first information, wherein the first information is used for indicating the degree of beam squint experienced by the first device; and the first device sending the first information to a second device. In the embodiments of the present disclosure, a first device sends first information to a second device, and on the basis of the first information, the second device can know the degree of beam squint experienced by the first device, and can accordingly take corresponding measures, such as utilizing or avoiding the influence of beam squint.

Description

Information processing method and communication device Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to an information processing method and a communication device. Background Art

[0002] Large-scale antenna arrays can experience beam squint in wide bandwidths. During communications, beam squint can cause the beams formed on certain frequency resources to deviate from the intended direction, causing interference to receivers in other directions (such as user equipment (UE)) and reducing beamforming gain.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide an information processing method and a communication device.

[0005] According to a first aspect of an embodiment of the present disclosure, an information processing method is provided, which is executed by a first device. The method includes:

[0006] determining first information indicating a degree of beam squint experienced by the first device;

[0007] The first information is sent to the second device.

[0008] According to a second aspect of an embodiment of the present disclosure, an information processing method is provided, which is executed by a second device. The method includes:

[0009] First information is received, where the first information is used to indicate a degree of beam squint experienced by the first device.

[0010] According to a third aspect of an embodiment of the present disclosure, a communication device is provided, the device including:

[0011] a processing module configured to determine first information indicating a degree of beam squint experienced by the first device;

[0012] The transceiver module is configured to send the first information to the second device.

[0013] According to a fourth aspect of an embodiment of the present disclosure, a communication device is provided, the device including:

[0014] The transceiver module is configured to receive first information, where the first information is used to indicate a degree of beam squint experienced by the first device.

[0015] According to a fifth aspect of an embodiment of the present disclosure, a communication device is provided, the device including:

[0016] one or more processors;

[0017] The communication device is used to execute the information processing method proposed in the first aspect of the embodiment of this disclosure.

[0018] According to a sixth aspect of an embodiment of the present disclosure, a communication device is provided, the device including:

[0019] one or more processors;

[0020] The communication device is used to execute the information processing method proposed in the second aspect of the embodiment of this disclosure.

[0021] According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, comprising a first device and a second device, wherein the first device is configured to implement the information processing method proposed in the first aspect of the embodiment of the present disclosure, and the second device is configured to implement the information processing method proposed in the second aspect of the embodiment of the present disclosure.

[0022] According to the eighth aspect of the embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the information processing method proposed in the first aspect or the second aspect of the embodiment of the present disclosure.

[0023] In an embodiment of the present disclosure, a first device sends first information to a second device. The second device can know the degree of beam squint suffered by the first device based on the first information, and can take corresponding measures, such as utilizing or avoiding the influence of beam squint. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0025] FIG1A is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0026] FIG1B is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0027] FIG2 is an exemplary schematic diagram of a beam squint phenomenon provided according to an embodiment of the present disclosure.

[0028] FIG3 is an exemplary interaction diagram of an information processing method provided according to an embodiment of the present disclosure.

[0029] FIG4A is a schematic diagram of an exemplary flow chart of an information processing method provided according to an embodiment of the present disclosure.

[0030] FIG4B is a schematic diagram of an exemplary flow chart of an information processing method provided according to an embodiment of the present disclosure.

[0031] FIG5A is a schematic diagram of an exemplary flow chart of an information processing method provided according to an embodiment of the present disclosure.

[0032] FIG5B is a schematic diagram of an exemplary flow chart of an information processing method provided according to an embodiment of the present disclosure.

[0033] FIG6 is an exemplary interaction diagram of an information processing method provided according to an embodiment of the present disclosure.

[0034] FIG7A is an exemplary schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure.

[0035] FIG7B is an exemplary schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure.

[0036] FIG8A is an exemplary schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure.

[0037] FIG8B is an exemplary schematic diagram of the structure of a chip provided according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0038] The embodiments of the present disclosure provide an information processing method and a communication device.

[0039] In a first aspect, an embodiment of the present disclosure proposes an information processing method, which is executed by a first device. The method includes: determining first information, where the first information is used to indicate the degree of beam squint suffered by the first device; and sending the first information to a second device.

[0040] In the above embodiment, the first device can determine the first information and send the first information to the second device to indicate the degree of beam squint it is subject to. The second device can know the degree of beam squint suffered by the first device based on the first information, so that it can take corresponding processing, such as utilizing or avoiding the influence of beam squint. In some implementations, the wide beam generated by beam squint can be used for coarse-grained rapid perception. In other implementations, the influence of beam squint can be avoided by pre-distortion compensation of the beamforming vector (precoding vector) in advance, or by allocating small bandwidth resources to the first device, thereby avoiding the decrease in beamforming gain caused by beam squint. For example, the above-mentioned pre-distortion compensation can be performed by introducing a phase rotation in each element of the precoding vector to perform phase compensation on the precoding vector.

[0041] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: receiving second information, where the second information is used to instruct the first device to send the first information.

[0042] In the above embodiment, the first device may determine whether to send the first information based on the second information, so as to avoid resource waste and save overhead.

[0043] In combination with some embodiments of the first aspect, in some embodiments, the second information is carried in at least one of the following: downlink control information (Downlink Control Information, DCI); media access control (Media Access Control, MAC) control unit (Control Element, CE) message; radio resource control (Radio Resource Control, RRC) message.

[0044] In the above embodiment, the first device may be configured to send the first information through at least one signaling of DCI, MAC CE, and RRC.

[0045] In combination with some embodiments of the first aspect, in some embodiments, the distribution of the transmitting antenna port of the second device is one-dimensional, and the first information includes a first parameter β, which is determined by: obtaining at least one channel matrix from the second device to the first device; determining a first covariance matrix C based on the at least one channel matrix; performing eigenvalue decomposition on C to determine a standard orthogonal basis U of the signal subspace s According to U s Determine β; where, λ1 and λ2 are matrices The largest eigenvalue and the second largest eigenvalue, U s,1 and U s,2 U s The first N t -1 row submatrix and U s N after t -1 row submatrix, N t The number of transmit antenna ports in one polarization direction among the transmit antenna ports.

[0046] In the above embodiment, the rotation invariance of the subspace is utilized and the characteristic spectrum analysis is performed to obtain the first parameter β for quantitatively indicating the degree of beam squint.

[0047] In conjunction with some embodiments of the first aspect, in some embodiments, the first covariance matrix is Among them, H p (k) is the sub-matrix of the p-th polarization direction corresponding to the transmitting antenna port in the k-th channel matrix.

[0048] In conjunction with some embodiments of the first aspect, in some embodiments, the distribution of the transmitting antenna ports of the second device is two-dimensional, and the first information includes at least one of the following: the second parameter β (v) , used to indicate the degree of vertical beam squint experienced by the first device; the third parameter β (h) , used to indicate the degree of horizontal beam squint experienced by the first device; β (v) and β (h) The mean of β (v) and β (h) The maximum value in β (v) and β (h) The minimum value in .

[0049] In the above embodiment, if the distribution of the transmitting antenna ports of the second device is two-dimensional, the first device may transmit β (v) , β (h) , β (v) and β (h) In some implementations, on this basis, the second device may perform pre-distortion compensation on the beamforming vectors (precoding vectors) in the horizontal direction and / or the vertical direction respectively.

[0050] In conjunction with some embodiments of the first aspect, in some embodiments, β (v) Determined by: acquiring at least one channel matrix from the second device to the first device; determining a second covariance matrix C according to the at least one channel matrix (v) , C (v) is the covariance matrix of the vertical dimension; (v) Perform eigenvalue decomposition to determine the standard orthogonal basis of the signal subspace according to Determine β (v) ;in, and The matrices The largest and second largest eigenvalues ​​of and They are Before The submatrix consisting of rows and After The submatrix composed of rows, The number of transmit antenna ports in the vertical dimension in one polarization direction among the transmit antenna ports.

[0051] In the above embodiment, the rotation invariance of the subspace is utilized to obtain the second parameter β for quantitatively indicating the degree of beam squint through characteristic spectrum analysis.(v) .

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the second covariance matrix is in, is the sub-matrix of the c-th column antenna port in the p-th polarization direction corresponding to the transmitting antenna port in the k-th channel matrix.

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, β (h) Determined by: acquiring at least one channel matrix from the second device to the first device; determining a third covariance matrix C according to the at least one channel matrix (h) , C (h) is the covariance matrix of the horizontal dimension; for C (h) Perform eigenvalue decomposition to determine the standard orthogonal basis of the signal subspace according to Determine β (h) ;in, and The matrices The largest and second largest eigenvalues ​​of and They are Before The submatrix consisting of rows and After The submatrix composed of rows, The number of transmitting antenna ports in the horizontal dimension in one polarization direction among the transmitting antenna ports.

[0054] In the above embodiment, the rotation invariance of the subspace is utilized to obtain the third parameter β for quantitatively indicating the degree of beam squint through characteristic spectrum analysis. (h) .

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the third covariance matrix is in, is the submatrix of the r-th row antenna port in the p-th polarization direction corresponding to the transmitting antenna port in the k-th channel matrix.

[0056] In a second aspect, an embodiment of the present disclosure proposes an information processing method, which is executed by a second device. The method includes: receiving first information, where the first information is used to indicate the degree of beam squint experienced by the first device.

[0057] In the above embodiment, the second device receives the first information and can know the degree of beam squint suffered by the first device based on the first information, so that corresponding processing can be taken, such as utilizing or avoiding the influence of beam squint. In some implementations, the wide beam generated by beam squint can be used for coarse-grained rapid perception. In other implementations, the influence of beam squint can be avoided by pre-distortion compensation of the beamforming vector (precoding vector) in advance, or by allocating small bandwidth resources to the first device, thereby avoiding the decrease in beamforming gain caused by beam squint.

[0058] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: sending second information, where the second information is used to instruct the first device to send the first information.

[0059] In combination with some embodiments of the second aspect, in some embodiments, the second information is carried in at least one of the following: DCI; MAC CE message; RRC message.

[0060] In combination with some embodiments of the second aspect, in some embodiments, the distribution of the transmitting antenna port of the second device is one-dimensional, and the first information includes a first parameter β, which is determined by: obtaining at least one channel matrix from the second device to the first device; determining a first covariance matrix C based on the at least one channel matrix; performing eigenvalue decomposition on C to determine a standard orthogonal basis U of the signal subspace s According to U s Determine β; where, λ1 and λ2 are matrices The largest eigenvalue and the second largest eigenvalue, U s,1 and U s,2 U s The first N t -1 row submatrix and U s N after t -1 row submatrix, N t The number of transmit antenna ports in one polarization direction among the transmit antenna ports.

[0061] In conjunction with some embodiments of the second aspect, in some embodiments, the first covariance matrix is Among them, H p (k) is the sub-matrix of the p-th polarization direction corresponding to the transmitting antenna port in the k-th channel matrix.

[0062] In conjunction with some embodiments of the second aspect, in some embodiments, the distribution of the transmitting antenna ports of the second device is two-dimensional, and the first information includes at least one of the following: the second parameter β (v) , used to indicate the degree of vertical beam squint experienced by the first device; the third parameter β(h) , used to indicate the degree of horizontal beam squint experienced by the first device; β (v) and β (h) The mean of β (v) and β (h) The maximum value in β (v) and β (h) The minimum value in .

[0063] In conjunction with some embodiments of the second aspect, in some embodiments, β (v) The second covariance matrix C is determined by: obtaining at least one channel matrix from the second device to the first device; and determining the second covariance matrix C according to the at least one channel matrix. (v) , C (v) is the covariance matrix of the vertical dimension; (v) Perform eigenvalue decomposition to determine the standard orthogonal basis of the signal subspace according to Determine β (v) ;in, and The matrices The largest and second largest eigenvalues ​​of and They are Before The submatrix consisting of rows and After The submatrix composed of rows, The number of transmit antenna ports in the vertical dimension in one polarization direction among the transmit antenna ports.

[0064] In conjunction with some embodiments of the second aspect, in some embodiments, the second covariance matrix is in, is the sub-matrix of the c-th column antenna port in the p-th polarization direction corresponding to the transmitting antenna port in the k-th channel matrix.

[0065] In conjunction with some embodiments of the second aspect, in some embodiments, β (h) The method is as follows: obtaining at least one channel matrix from the second device to the first device; determining a third covariance matrix C according to the at least one channel matrix (h) , C (h) is the covariance matrix of the horizontal dimension; for C (h) Perform eigenvalue decomposition to determine the standard orthogonal basis of the signal subspace according to Determine β (h) ;in, and The matrices The largest and second largest eigenvalues ​​of and They are Before The submatrix consisting of rows and After The submatrix composed of rows, The number of transmitting antenna ports in the horizontal dimension in one polarization direction among the transmitting antenna ports.

[0066] In conjunction with some embodiments of the second aspect, in some embodiments, the third covariance matrix is in, is the submatrix of the r-th row antenna port in the p-th polarization direction corresponding to the transmitting antenna port in the k-th channel matrix.

[0067] In a third aspect, an embodiment of the present disclosure proposes a communication device, which includes: a processing module, configured to determine first information, where the first information is used to indicate the degree of beam squint suffered by the first device; and a transceiver module, configured to send the first information to the second device.

[0068] In a fourth aspect, an embodiment of the present disclosure proposes a communication device, which includes: a transceiver module, configured to receive first information, where the first information is used to indicate the degree of beam squint experienced by the first device.

[0069] In a fifth aspect, an embodiment of the present disclosure proposes a communication device, which includes: one or more processors; wherein the communication device is used to execute the first aspect and the optional implementation method of the first aspect.

[0070] In a sixth aspect, an embodiment of the present disclosure proposes a communication device, which includes: one or more processors; wherein the communication device is used to execute the second aspect and the optional implementation method of the second aspect.

[0071] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, including a first device and a second device, wherein the first device is configured to implement the first aspect and an optional implementation method of the first aspect, and the second device is configured to implement the second aspect and an optional implementation method of the second aspect.

[0072] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium storing instructions, which, when executed on a communication device, enables the communication device to execute the first aspect and the optional implementation method of the first aspect, or to execute the second aspect and the optional implementation method of the second aspect.

[0073] In a ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the first and second aspects, and the optional implementation methods of the first and second aspects.

[0074] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the methods described in the first and second aspects, and the optional implementations of the first and second aspects.

[0075] In an eleventh aspect, embodiments of the present disclosure provide a chip or a chip system, which includes a processing circuit configured to execute the methods described in accordance with the first and second aspects, and the optional implementations of the first and second aspects.

[0076] It is understandable that the above-mentioned communication devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0077] The disclosed embodiments provide information processing methods and communication devices. In some embodiments, the terms information processing method, beam squint identification method, beam squint feedback method, communication method, and perception method are interchangeable, and the terms communication system, perception system, and synaesthesia system are interchangeable.

[0078] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0079] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0080] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0081] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0082] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0083] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0084] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0085] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0086] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0087] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0088] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0089] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0090] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0091] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0092] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0093] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0094] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0095] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0096] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0097] Figure 1A is a schematic diagram illustrating the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1A , communication system 110 includes a first device 1101 and a second device 1102. Second device 1102 may be referred to as a transmitting device. It includes a transmitting antenna and can transmit signals, such as communication signals and / or sensing signals, using beamforming. First device 1101 may be referred to as a receiving device. It includes a receiving antenna and can receive signals transmitted by the second device. First device 1101 and / or second device 1102 may be terminals or network devices.

[0098] Optionally, the first device 1101 may be a terminal, and the second device 1102 may be a network device.

[0099] Optionally, the first device 1101 may be a terminal, and the second device 1102 may be a terminal.

[0100] Optionally, the first device 1101 may be a network device, and the second device 1102 may be a terminal.

[0101] Optionally, the first device 1101 may be a network device, and the second device 1102 may be a network device.

[0102] FIG1B is a schematic diagram illustrating the architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1B , communication system 120 includes terminal 1201 and network device 1202. Network device 1202 may include, for example, an access network device. Terminal 1201 may communicate with network device 1202 via a physical uplink control channel (PUCCH) and / or a physical uplink shared channel (PUSCH).

[0103] In some embodiments, the terminal 1201 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0104] In some embodiments, the access network device is, for example, a node or device that accesses the terminal 1201 to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0105] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0106] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0107] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0108] The following embodiments of the present disclosure can be applied to the communication system 110 shown in FIG1A or a portion thereof, and can be applied to the communication system 120 shown in FIG1B or a portion thereof, but are not limited thereto. The entities shown in FIG1A and FIG1B are examples. The communication system may include all or part of the entities in FIG1A or FIG1B, or may include other entities other than those in FIG1A and FIG1B. The number and form of each entity are arbitrary. Each entity can be physical or virtual. The connection relationship between the entities is an example. The entities can be connected or disconnected. The connection can be in any manner, and can be direct or indirect, and can be wired or wireless.

[0109] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0110] To meet the growing demand for higher data rates, wireless communications require larger wireless spectrum resources. However, spectrum resources in the mid- and low-frequency bands are already quite congested in related technologies, leading the wireless communications field to explore higher-frequency resources, such as millimeter wave (mmWave), sub-terahertz (subTHz), and terahertz (THz). Large bandwidths are relatively easy to obtain in these frequency bands, but these high-frequency resources suffer from extremely severe propagation losses, resulting in very limited transmission range and coverage. In this situation, large-scale antenna arrays must be used to extend transmission range and enhance coverage through beamforming. Due to the large aperture of the antenna array, the beams formed are narrower, with fewer multipath components, and primarily line-of-sight (LOS) transmission.

[0111] In large-scale antenna arrays, beam squint may occur under large bandwidth conditions. In other words, a given precoding vector may form beams with different directions at different frequencies (for example, different subcarriers in an orthogonal frequency-division multiplexing (OFDM) system). Figure 2 is an exemplary diagram of the beam squint phenomenon according to an embodiment of the present disclosure. As shown in Figure 2, the precoding vector The beam formed at frequency f0 points in the direction of π / 3, while at frequency The formed beam points in the direction of π / 4.

[0112] In actual transmission, the beam squint phenomenon may cause the beam formed on certain frequency resources to deviate from the expected direction, which will not only interfere with receivers in other directions (such as UE), but also cause a decrease in beamforming gain. For example, the normalized beamforming gain is defined below to quantitatively illustrate the decrease in beamforming gain caused by beam squint. Optionally, the normalized beamforming gain is the ratio of the beamforming gain taking beam squint into account (i.e., the beamforming gain in actual transmission) to the beamforming gain without taking beam squint into account. Taking the transmitting antenna array as a uniform linear array (ULA) as an example, the normalized beamforming gain can be expressed as:

[0113] in:

[0114] G(N,d,r,θ) is the normalized beamforming gain;

[0115] N is the number of antennas in the ULA array;

[0116] d is the spacing between adjacent antennas in the ULA;

[0117] θ is the direction angle of the target receiver;

[0118] R is the ratio of the target frequency to the reference frequency;

[0119] λ0 is the reference wavelength, which is the ratio of the speed of light to the reference frequency.

[0120] The reference frequency can theoretically be any frequency without restriction. For example, the reference frequency can be the following typical values: carrier frequency; center frequency; the frequency of the center frequency / lowest frequency / highest frequency subcarrier; or the frequency determined based on the antenna spacing.

[0121] Clearly, the reduction in beamforming gain due to beam squint depends not only on the number of antennas in the transmit antenna array (N) and the spacing between adjacent antennas (d), but also on the frequency offset (R) and the azimuth angle (θ) of the target receiver (e.g., UE). In other words, different UEs are affected differently by beam squint. For example, UEs located in the array's boresight (θ = π / 2) are not affected at all by beam squint. UEs further from the boresight are more affected by beam squint.

[0122] Figure 3 is an interactive diagram of an information processing method according to an embodiment of the present disclosure. As shown in Figure 3, the present disclosure embodiment relates to an information processing method, which includes:

[0123] Step S3101: The second device sends second information.

[0124] In some embodiments, the first device receives the second information.

[0125] In some embodiments, the second information is used to indicate whether the first device transmits the first information. Alternatively, the second information is used to indicate whether the first device transmits the first information. Alternatively, the second information is used to indicate whether the first device transmits the first information. Alternatively, the second information is used to indicate whether the first device transmits the first information. The second information may be included in the first configuration. Alternatively, the first configuration may be, for example, a reporting setting.

[0126] In some embodiments, the second information is carried in at least one of the following:

[0127] Downlink Control Information (DCI);

[0128] Media Access Control (MAC) Control Element (CE) messages;

[0129] Radio Resource Control (RRC) message.

[0130] In some embodiments, step S3101 is optional, meaning the second device may not send the second information. For example, the communication protocol predetermines whether the first device sends the first information. If the second device does not send the second information, the first device may send the first information or not according to the provisions of the communication protocol.

[0131] Step S3102: The first device determines first information.

[0132] In some embodiments, the first information is used to indicate the degree of beam squint experienced by the first device. The disclosed embodiments do not limit the name of the first information, which may be, for example, "beam squint indicator (BSI)" or "beam squint information." Optionally, the first information may quantitatively indicate the degree of beam squint experienced by the first device.

[0133] In some embodiments, the first device may determine the first information based on a channel matrix from the second device to the first device. The first device may obtain the channel matrix based on a reference signal sent by the second device. Optionally, the reference signal may be, for example, a channel state information reference signal (CSI-RS), or may be other reference signals used for channel measurement, without limitation.

[0134] In some embodiments, the distribution of the transmit antenna ports of the second device may be one-dimensional, for example, the transmit antenna array of the second device may be a one-dimensional array. In some embodiments, the distribution of the transmit antenna ports of the second device may be two-dimensional, for example, the transmit antenna array of the second device may be a two-dimensional array. The following uses the examples of one-dimensional and two-dimensional distributions of the transmit antenna ports of the second device to illustrate optional implementations of determining the first information.

[0135] (1) The transmitting antenna ports of the second device are one-dimensionally distributed

[0136] Optionally, the transmitting antenna array of the second device is a one-dimensional array, for example, the transmitting antenna array of the second device is a ULA, a cross polarization array (CPA), etc.

[0137] In some implementations, the first information may include a first parameter β, where β is used to indicate a degree of beam squint experienced by the first device. Optionally, β may be a positive real number, i.e., different values ​​of β indicate different degrees of beam squint experienced by the first device.

[0138] In some implementations, β can be a positive real number between 0 and 1, which can quantitatively indicate the degree of beam squint experienced by the first device. Optionally, the value of β is proportional to the degree of beam squint experienced by the first device. For example, a smaller β (such as 0.1) indicates that the beam squint experienced by the first device is relatively mild, and a larger β (such as 0.9) indicates that the beam squint experienced by the first device is relatively severe.

[0139] In some implementations, the value of β can be determined by the following steps:

[0140] Step a: Acquire at least one channel matrix from the second device to the first device.

[0141] The first device may measure the reference signal sent by the second device to obtain at least one channel matrix. Optionally, the channel matrix corresponds to all transmitting antenna ports (including all row antenna ports, all column antenna ports, all polarization directions, etc.) and all receiving antenna ports. Optionally, the channel matrix is, for example, a downlink channel matrix. Optionally, a channel matrix corresponds to a frequency resource. A frequency resource may correspond to a subcarrier, a subcarrier set / group, a CSI-RS resource, or a CSI-RS resource set, etc. In some embodiments, terms such as "frequency resource", "frequency group", and "time-frequency resource" may be interchangeable.

[0142] Step b: Determine a first covariance matrix C based on the at least one channel matrix.

[0143] For example, the first covariance matrix is Among them, H p (k) is the sub-matrix of the p-th polarization direction corresponding to the transmitting antenna port of the second device in the k-th channel matrix. Or it can be described as, H p (k) is the kth instance from the antenna port in the p-th polarization direction among the transmitting antenna ports of the second device to the receiving antenna port of the first device. An instance represents a submatrix of a channel matrix, corresponding to the antenna port of the one-dimensional array of the transmitting end (such as the second device mentioned above) in one polarization direction, or corresponding to a row (or column) of antenna ports of the two-dimensional array of the transmitting end (such as the second device mentioned above) in one polarization direction. Optionally, the dimension of the submatrix is, for example, Nr ×N t , where N r is the number of receiving antenna ports of the first device, which may include receiving antenna ports of different polarization directions, N r is a positive integer, N t N is the number of transmitting antenna ports in one polarization direction among the transmitting antenna ports of the second device, t Is a positive integer.

[0144] Step c: Perform eigenvalue decomposition (EVD) on the first covariance matrix C to determine the standard orthogonal basis U of the signal subspace. s .

[0145] For example, the eigenvalue decomposition of the first covariance matrix C satisfies:

[0146] Among them, U s is the standard orthogonal basis of the signal subspace, U n is the standard orthogonal basis of the noise subspace, Λ s is the diagonal matrix composed of the eigenvalues ​​of the signal subspace, Λ n is a diagonal matrix composed of the eigenvalues ​​of the noise subspace.

[0147] Step d: According to U s Determine β.

[0148] For example, λ1 is a matrix The maximum eigenvalue of , λ2 is the matrix The second largest eigenvalue, U s,1 For U s The first N t -1 row submatrix, U s,2 For U s N after t -1 submatrix.

[0149] In the above implementation, the rotation invariance of the subspace is utilized to analyze the characteristic spectrum, thereby obtaining the first parameter β for quantitatively indicating the degree of beam squint.

[0150] (2) The transmitting antenna ports of the second device are two-dimensionally distributed

[0151] Optionally, the transmitting antenna array of the second device is a two-dimensional array, for example, the transmitting antenna array of the second device is a uniform planar array (UPA) or the like.

[0152] In some implementations, the first information may include at least one of the following:

[0153] The second parameter β (v) , β (v) used to indicate the degree of vertical beam squint experienced by the first device;

[0154] The third parameter β (h) , β (h) used to indicate the degree of horizontal beam squint experienced by the first device;

[0155] β (v) and β (h) The mean of (β (v) +β (h) ) / 2;

[0156] β (v) and β (h) The maximum value in: max{β (v) ,β (h)};

[0157] β (v) and β (h) The minimum value in: min{β (v) ,β (h)}.

[0158] In some implementations, β (v) Can be a positive real number, that is, through β (v) Different values ​​of β indicate different degrees of vertical beam squint experienced by the first device. In some implementations, β (v) It can be a positive real number between 0 and 1, which can quantitatively indicate the degree of vertical beam squint suffered by the first device. (v) The value of β is proportional to the degree of vertical beam squint experienced by the first device, for example, (v) A smaller value (such as 0.1) indicates that the vertical beam squint experienced by the first device is lighter, β (v) A larger value (such as 0.9) indicates that the vertical beam squint suffered by the first device is more serious.

[0159] In some implementations, β (h) Can be a positive real number, that is, through β (h) Different values ​​of β indicate different degrees of horizontal beam squint experienced by the first device. In some implementations, β (h) It can be a positive real number between 0 and 1, which can quantitatively indicate the degree of horizontal beam squint suffered by the first device. (h) The value of β is proportional to the degree of horizontal beam squint experienced by the first device, for example, (h)A smaller value (such as 0.1) indicates that the horizontal beam squint experienced by the first device is relatively light, β (h) A larger value (such as 0.9) indicates that the horizontal beam squint suffered by the first device is more serious.

[0160] In some implementations, β (v) The value of can be determined by the following steps:

[0161] Step a: Acquire at least one channel matrix from the second device to the first device.

[0162] The first device may measure the reference signal sent by the second device to obtain at least one channel matrix. Optionally, the channel matrix corresponds to all transmit antenna ports (including all row antenna ports, all column antenna ports, all polarization directions, etc.) and all receive antenna ports. Optionally, the channel matrix is, for example, a downlink channel matrix. Optionally, a channel matrix corresponds to a frequency resource. A frequency resource may correspond to a subcarrier, a subcarrier set / group, a CSI-RS resource, or a CSI-RS resource set, etc.

[0163] Step b: determining a second covariance matrix C based on the at least one channel matrix (v) .

[0164] C (v) is the covariance matrix of the vertical dimension. For example, the second covariance matrix is in, is the sub-matrix of the c-th column antenna port in the p-th polarization direction corresponding to the transmitting antenna port in the k-th channel matrix. Or it can be described as, is the kth instance from the cth column antenna port in the pth polarization direction of the transmitting antenna port of the second device to the receiving antenna port of the first device. Optionally, the dimension of the submatrix is, for example, Among them, N r is the number of receiving antenna ports of the first device, which may include receiving antenna ports of different polarization directions, N r is a positive integer, is the number of transmitting antenna ports in a vertical dimension in one polarization direction among the transmitting antenna ports of the second device, Is a positive integer.

[0165] Step c: the second covariance matrix C (v) Perform eigenvalue decomposition to determine the standard orthogonal basis of the signal subspace

[0166] For example, for the second covariance matrix C (v) Perform eigenvalue decomposition to satisfy:

[0167] in, is the orthonormal basis of the signal subspace, is the orthonormal basis of the noise subspace, is a diagonal matrix composed of the eigenvalues ​​of the signal subspace, is a diagonal matrix composed of the eigenvalues ​​of the noise subspace.

[0168] Step d: According to Determine β (v) .

[0169] For example, is a matrix The maximum eigenvalue of is a matrix The second largest eigenvalue of for Before The submatrix composed of rows, for After A submatrix consisting of rows.

[0170] In the above implementation, the rotation invariance of the subspace is utilized to analyze the characteristic spectrum, thereby obtaining the second parameter β for quantitatively indicating the degree of beam squint in the vertical dimension. (v) .

[0171] In some implementations, β (h) The value of can be determined by the following steps:

[0172] Step a: Acquire at least one channel matrix from the second device to the first device.

[0173] The first device may measure the reference signal sent by the second device to obtain at least one channel matrix. Optionally, the channel matrix corresponds to all transmit antenna ports (including all row antenna ports, all column antenna ports, all polarization directions, etc.) and all receive antenna ports. Optionally, the channel matrix is, for example, a downlink channel matrix. Optionally, a channel matrix corresponds to a frequency resource. A frequency resource may correspond to a subcarrier, a subcarrier set / group, a CSI-RS resource, or a CSI-RS resource set, etc.

[0174] Step b: determining a third covariance matrix C based on the at least one channel matrix (h) .

[0175] C (h) is the covariance matrix of the horizontal dimension. For example, the third covariance matrix is in, is the sub-matrix of the r-th row antenna port in the p-th polarization direction corresponding to the transmitting antenna port in the k-th channel matrix. Or it can be described as, is the kth instance from the rth row antenna port in the pth polarization direction of the transmitting antenna port of the second device to the receiving antenna port of the first device. Optionally, the dimension of the submatrix is, for example, Among them, N r is the number of receiving antenna ports of the first device, which may include receiving antenna ports of different polarization directions, N r is a positive integer, is the number of transmitting antenna ports in a horizontal dimension in one polarization direction among the transmitting antenna ports of the second device, Is a positive integer.

[0176] Step c: the third covariance matrix C (h) Perform eigenvalue decomposition to determine the standard orthogonal basis of the signal subspace

[0177] For example, for the third covariance matrix C (h) Perform eigenvalue decomposition to satisfy:

[0178] in, is the orthonormal basis of the signal subspace, is the orthonormal basis of the noise subspace, is a diagonal matrix composed of the eigenvalues ​​of the signal subspace, is a diagonal matrix composed of the eigenvalues ​​of the noise subspace.

[0179] Step d: According to Determine β (h) .

[0180] For example, is a matrix The maximum eigenvalue of is a matrix The second largest eigenvalue of for Before The submatrix composed of rows, for After A submatrix consisting of rows.

[0181] In the above implementation, the rotation invariance of the subspace is utilized to analyze the characteristic spectrum, thereby obtaining the third parameter β for quantitatively indicating the degree of horizontal beam squint. (h) .

[0182] According to the above optional implementation, in some embodiments, the first device obtains at least one channel matrix from the second device to the first device, and determines the second covariance matrix C of the vertical dimension according to the at least one channel matrix. (v) and the third covariance matrix C of the horizontal dimension (h) , for the second covariance matrix C (v) Perform eigenvalue decomposition and get C (v) The orthonormal basis of the signal subspace And the third covariance matrix C (h) Perform eigenvalue decomposition and get C (h) The orthonormal basis of the signal subspace according to The second parameter β can be obtained (v) , and according to The third parameter β can be obtained (h) .

[0183] Step S3103: The first device sends the first information.

[0184] In some embodiments, the second device receives the first information.

[0185] In some embodiments, whether the first device sends the first information may be configured by the second information sent by the second device, or may be pre-specified by the communication protocol, which is not limited by the embodiments of the present disclosure.

[0186] In some embodiments, the first device sends the first information based on the second information. Optionally, the first device receives the second information and sends the first information. Optionally, the first device does not receive the second information and does not send the first information. Optionally, the first device receives the second information and the second information instructs the first device to send the first information and sends the first information. Optionally, the first device receives the second information and the second information instructs the first device not to send the first information and does not send the first information.

[0187] In some embodiments, the first information may be sent as part of channel state information (CSI), or the first information may be sent separately. Optionally, the first information may be sent periodically, aperiodically, or semi-persistently.

[0188] In some embodiments, the first information may be sent via PUCCH and / or PUSCH, etc.

[0189] In some embodiments, the distribution of the transmit antenna ports of the second device is one-dimensional. Optionally, the first device transmits β.

[0190] In some embodiments, the distribution of the transmitting antenna ports of the second device is two-dimensional. (v) Optionally, the first device sends β (h) Optionally, the first device sends β (v) and β (h) Optionally, the first device sends β (v) and β (h) Optionally, the first device sends β (v) and β (h) Optionally, the first device sends β (v) and β (h) The minimum value in .

[0191] According to the above implementation, the first device can determine and send first information to indicate the degree of beam squint to which it is subject. The second device receives the first information and can know the degree of beam squint to which the first device is subject based on the first information, so that corresponding processing can be taken, such as utilizing or avoiding the influence of beam squint. In some implementations, the wide beam generated by beam squint can be used for coarse-grained rapid perception. In other implementations, the influence of beam squint can be avoided by pre-distortion compensation of the beamforming vector (precoding vector) in advance, or by allocating small bandwidth resources to the first device, thereby avoiding the decrease in beamforming gain caused by beam squint.

[0192] Optionally, predistortion compensation can be performed by introducing a phase rotation into each element of the precoding vector to compensate for the phase of the precoding vector. Predistortion compensation ensures that the compensated precoding vector for each target frequency accurately points the beam in the desired direction, compensating for and overcoming beam squint and ensuring strict alignment of beams at different frequencies.

[0193] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "parameter", "domain", "field", and "notification" can be used interchangeably.

[0194] In some embodiments, the terms "downlink", "physical downlink", etc. can be used interchangeably.

[0195] In some embodiments, the terms "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like may be used interchangeably.

[0196] In some embodiments, terms such as "resource block (RB)", "physical resource block (PRB)", "sub-carrier group (SCG)", "resource element group (REG)", "PRB pair", "RB pair", "resource element (RE)", and "sub-carrier" can be used interchangeably.

[0197] In some embodiments, the terms "precoding", "precoder", "weight", "precoding weight", "quasi-co-location (QCL)", "transmission configuration indication (TCI) state", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "the number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angular degree", "antenna", "antenna element" and the like can be used interchangeably.

[0198] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0199] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0200] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0201] The information processing method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3103. For example, step S3101 may be implemented as an independent embodiment, step S3102 may be implemented as an independent embodiment, and step S3102 + step S3103 may be implemented as independent embodiments, but the present disclosure is not limited thereto.

[0202] In some embodiments, step S3101 and step S3102 may be executed in an interchanged order or simultaneously.

[0203] In some embodiments, step S3101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0204] FIG4A is a flow chart of an information processing method according to an embodiment of the present disclosure. As shown in FIG4A , the embodiment of the present disclosure relates to an information processing method, which can be applied to a first device, optionally a terminal. The method includes:

[0205] Step S4101, receiving second information.

[0206] In some embodiments, second information sent by a second device is received.

[0207] In some embodiments, the second information is used to instruct the first device whether to send the first information. Optionally, the second information is used to instruct the first device to send the first information.

[0208] In some embodiments, step S4101 is optional, that is, the first device may not receive the second information.

[0209] The optional implementation of step S4101 can refer to the optional implementation of step S3101 in Figure 3 and other related parts of the embodiment involved in Figure 3, which will not be repeated here.

[0210] Step S4102, determine the first information.

[0211] In some embodiments, the first information is used to indicate a degree of beam squint experienced by the first device.

[0212] In some embodiments, the first device may determine the first information based on a channel matrix from the second device to the first device.

[0213] The optional implementation of step S4102 can refer to the optional implementation of step S3102 in Figure 3 and other related parts of the embodiment involved in Figure 3, which will not be repeated here.

[0214] In some embodiments, step S4101 and step S4102 may be executed in an interchanged order or simultaneously.

[0215] Step S4103, sending the first information.

[0216] In some embodiments, the first information is sent to the second device.

[0217] The optional implementation of step S4103 can refer to the optional implementation of step S3103 in Figure 3 and other related parts of the embodiment involved in Figure 3, which will not be repeated here.

[0218] According to the above embodiment, the first device can determine and send the first information so that the second device can know the degree of beam squint suffered by the first device based on the first information, and thus take corresponding processing, such as utilizing or avoiding the influence of beam squint. In some implementations, the wide beam generated by beam squint can be used for coarse-grained rapid perception. In other implementations, the influence of beam squint can be avoided by pre-distortion compensation of the beamforming vector (precoding vector) in advance, or by allocating small bandwidth resources to the first device, thereby avoiding the decrease in beamforming gain caused by beam squint.

[0219] FIG4B is a flow chart of an information processing method according to an embodiment of the present disclosure. As shown in FIG4B , the embodiment of the present disclosure relates to an information processing method, which can be applied to a first device, optionally a terminal. The method includes:

[0220] Step S4201, determine the first information.

[0221] In some embodiments, the first information is used to indicate a degree of beam squint experienced by the first device.

[0222] In some embodiments, the first device may determine the first information based on a channel matrix from the second device to the first device.

[0223] The optional implementation of step S4201 can refer to the optional implementation of step S3102 in Figure 3 and other related parts of the embodiment involved in Figure 3, which will not be repeated here.

[0224] Step S4202, sending the first information.

[0225] In some embodiments, the first information is sent to the second device.

[0226] In some embodiments, the first information may be sent according to the second information, or the first information may be sent according to provisions of a communication protocol.

[0227] The optional implementation of step S4202 can refer to the optional implementation of step S3103 in Figure 3 and other related parts of the embodiment involved in Figure 3, which will not be repeated here.

[0228] According to the above embodiment, the first device can determine and send the first information so that the second device can know the degree of beam squint suffered by the first device based on the first information, and thus take corresponding processing, such as utilizing or avoiding the influence of beam squint. In some implementations, the wide beam generated by beam squint can be used for coarse-grained rapid perception. In other implementations, the influence of beam squint can be avoided by pre-distortion compensation of the beamforming vector (precoding vector) in advance, or by allocating small bandwidth resources to the first device, thereby avoiding the decrease in beamforming gain caused by beam squint.

[0229] FIG5A is a flow chart of an information processing method according to an embodiment of the present disclosure. As shown in FIG5A , the embodiment of the present disclosure relates to an information processing method, which can be applied to a second device, optionally, the second device can be a network device. The above method includes:

[0230] Step S5101, receiving first information.

[0231] In some embodiments, first information sent by a first device is received. Optionally, the first information is sent by the first device according to the second information, or is sent according to a provision of a communication protocol.

[0232] In some embodiments, the first information is used to indicate a degree of beam squint experienced by the first device.

[0233] In some embodiments, the first information is determined by the first device based on a channel matrix from the second device to the first device. Optionally, the second device transmits a reference signal, and the first device measures the reference signal to obtain the channel matrix. Optionally, the reference signal may be, for example, a CSI-RS, or other reference signal used for channel measurement, without limitation.

[0234] In some embodiments, the distribution of the transmit antenna ports of the second device may be one-dimensional. Optionally, the transmit antenna array of the second device is a one-dimensional array. In some embodiments, the distribution of the transmit antenna ports of the second device may be two-dimensional. Optionally, the transmit antenna array of the second device is a two-dimensional array.

[0235] The optional implementation of step S5101 can be found in the optional implementation of step S3103 in Figure 3, step S4103 in Figure 4A, step S4202 in Figure 4B, and other related parts of the embodiments involved in Figures 3, 4A, and 4B (for example, step S3102, step S4102, step S4201), which will not be repeated here.

[0236] According to the above embodiment, the second device receives the first information and can know the degree of beam squint suffered by the first device based on the first information. Thus, the influence of beam squint can be weakened by pre-distortion compensation of the beamforming vector (precoding vector) in advance, or by allocating small bandwidth resources to the first device, thereby avoiding the decrease in beamforming gain caused by beam squint and avoiding the influence of beam squint to a great extent.

[0237] FIG5B is a flow chart of an information processing method according to an embodiment of the present disclosure. As shown in FIG5B , the embodiment of the present disclosure relates to an information processing method, which can be applied to a second device, and optionally, the second device can be a network device. The above method includes:

[0238] Step S5201, sending the second information.

[0239] In some embodiments, the second information is sent to the first device.

[0240] In some embodiments, the second information is used to instruct the first device whether to send the first information. Optionally, the second information is used to instruct the first device to send the first information.

[0241] In some embodiments, step S5201 is optional, that is, the second device may not send the second information.

[0242] Optional implementations of step S5201 can be found in step S3101 of FIG. 3 , optional implementations of step S4101 of FIG. 4A , and other related parts of the embodiments involved in FIG. 3 and FIG. 4A , which will not be described in detail here.

[0243] Step S5202, receiving first information.

[0244] The optional implementation of step S5202 can be found in step S3103 of Figure 3, step S4103 of Figure 4A, step S4202 of Figure 4B, the optional implementation of step S5101 of Figure 5A, and other related parts of the embodiments involved in Figures 3, 4A, 4B, and 5A, which will not be repeated here.

[0245] According to the above embodiment, the second device receives the first information and can know the degree of beam squint suffered by the first device based on the first information, so that corresponding processing can be taken, such as utilizing or avoiding the influence of beam squint. In some implementations, the wide beam generated by beam squint can be used for coarse-grained rapid perception. In other implementations, the influence of beam squint can be avoided by pre-distortion compensation of the beamforming vector (precoding vector) in advance, or by allocating small bandwidth resources to the first device, thereby avoiding the decrease in beamforming gain caused by beam squint.

[0246] It can be understood that the above embodiments can be combined arbitrarily. For example, part or all of the steps of different embodiments can be combined arbitrarily.

[0247] Figure 6 is an interactive diagram of an information processing method according to an embodiment of the present disclosure. As shown in Figure 6, the embodiment of the present disclosure relates to an information processing method, which includes:

[0248] Step S6101: The gNB sends a first configuration.

[0249] Optionally, the gNB configures the UE to report a beam squint indicator (BSI) through signaling. This signaling may be at least one of RRC, MAC CE, and DCI. The BSI may be a positive real number between 0 and 1 that quantitatively characterizes the degree of beam squint experienced by the target UE. For example, a small BSI (e.g., 0.1) indicates that the UE experiences relatively mild beam squint, while a large BSI (e.g., 0.9) indicates that the UE experiences relatively severe beam squint.

[0250] Optionally, the first configuration is, for example, a reporting setting. In the reporting setting, the gNB configures the UE to feedback a beam squint indicator (BSI).

[0251] In some embodiments, step S6101 is optional.

[0252] Step S6102: The UE determines the BSI.

[0253] The UE calculates the BSI based on the CSI-RS configured by the gNB.

[0254] If the gNB's transmit antenna array is a one-dimensional array, such as ULA or CPA, the UE calculates the BSI as follows:

[0255] Step a: Obtain the downlink channel matrix from gNB to UE.

[0256] Optionally, the downlink channel matrix corresponds to all transmitting antenna ports of the gNB (including all row antenna ports, all column antenna ports, all polarization directions, etc.) and all receiving antenna ports of the UE.

[0257] Step b: Calculate the covariance matrix of the downlink channel matrix

[0258] in, is the kth instance of the downlink channel matrix from the antenna of the pth polarization direction of the gNB-side transmit antenna array to the UE-side receive antenna array. An instance represents a submatrix of the channel matrix, corresponding to the antenna port of the one-dimensional array of the transmitter (such as the gNB above) in one polarization direction, or a row (or column) of antenna ports of the two-dimensional array of the transmitter (such as the gNB above) in one polarization direction. N r is the number of receiving antennas on the UE side, N t The number of antennas in one polarization direction in the gNB-side transmit antenna array.

[0259] Step c: Perform eigenvalue decomposition (EVD) on the covariance matrix C to obtain the standard orthogonal basis U of the signal subspace. s :

[0260] Among them, U s is the standard orthogonal basis of the signal subspace, U n is the standard orthogonal basis of the noise subspace, Λ s is the diagonal matrix composed of the eigenvalues ​​of the signal subspace, Λ n is a diagonal matrix composed of the eigenvalues ​​of the noise subspace.

[0261] Step d: Calculate BSI, denoted as in:

[0262] λ1 and λ2 are matrices The largest and second largest eigenvalues ​​of ;

[0263] U s,1 and U s,2 U s The first N t -1 row submatrix and U s N after t -1 submatrix.

[0264] If the gNB's transmit antenna array is a two-dimensional array, such as UPA, the UE calculates the BSI as follows:

[0265] Step a: Obtain the downlink channel matrix from gNB to UE.

[0266] Optionally, the downlink channel matrix corresponds to all transmitting antenna ports of the gNB (including all row antenna ports, all column antenna ports, all polarization directions, etc.) and all receiving antenna ports of the UE.

[0267] Step b: Calculate the two covariance matrices of the vertical dimension and the horizontal dimension, which are recorded as and

[0268] in, is the kth instance of the downlink channel matrix from the cth antenna in the pth polarization direction of the gNB side transmitting antenna array to the UE side receiving antenna array, is the kth instance of the downlink channel matrix from the rth row antenna in the pth polarization direction of the gNB side transmit antenna array to the UE side receive antenna array. N r is the number of receiving antennas on the UE side, and The numbers of antennas in the vertical and horizontal dimensions of the gNB-side transmitting antenna array in one polarization direction are respectively.

[0269] Step c, C (v) and C (h) Perform eigenvalue decomposition respectively to obtain the standard orthogonal basis of each signal subspace and

[0270] in:

[0271] and C (v) and C (h) The orthonormal basis of the noise subspace;

[0272] C (v) The diagonal matrix composed of the eigenvalues ​​of the signal subspace;

[0273] C (v) The diagonal matrix composed of the eigenvalues ​​of the noise subspace;

[0274] C (h) The diagonal matrix composed of the eigenvalues ​​of the signal subspace;

[0275] C (h) The diagonal matrix composed of the eigenvalues ​​of the noise subspace.

[0276] Step d: Calculate the BSI of the vertical dimension and the horizontal dimension, respectively, and in:

[0277] and The matrices The largest and second largest eigenvalues ​​of ;

[0278] and The matrices Before Line and back The submatrix composed of rows;

[0279] and The matrices The largest and second largest eigenvalues ​​of ;

[0280] and The matrices Before Line and back A submatrix consisting of rows.

[0281] Step S6103: UE sends BSI.

[0282] The UE reports the BSI to the gNB. Optionally, the BSI can be reported as part of the CSI or separately. BSI reporting can be periodic, aperiodic, or semi-persistent. BSI can be reported via PUCCH and / or PUSCH, etc.

[0283] The UE may report at least one of the following values ​​as BSI to the gNB: (v) β (h) β (v) and β (h) The mean of β (v) and β (h) The maximum value in β (v) and β (h) The minimum value in .

[0284] The method proposed in the embodiments of the present disclosure can identify and provide feedback on beam squint, allowing the gNB to quantitatively know the degree of beam squint of the UE. This can thereby minimize the impact of beam squint by pre-compensating the beamforming vector (precoding vector), and so on.

[0285] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0286] The embodiments of the present disclosure further provide apparatuses for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing each step performed by the first device in any of the above methods. For another example, another apparatus is provided that includes units or modules for implementing each step performed by the second device in any of the above methods.

[0287] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0288] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0289] Figure 7A is a schematic diagram of the structure of the communication device proposed in an embodiment of the present disclosure. As shown in Figure 7A, the communication device 7100 may include: at least one of a transceiver module 7101, a processing module 7102, etc. In some embodiments, the processing module is used to determine the first information. In some embodiments, the transceiver module is used to send the first information. Optionally, the transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (for example, step S3103, but not limited to this) performed by the first device in any of the above methods, which will not be repeated here. Optionally, the processing module is used to execute at least one of the other steps (for example, step S3102, but not limited to this) performed by the first device in any of the above methods, which will not be repeated here.

[0290] Figure 7B is a schematic diagram of the structure of the communication device proposed in an embodiment of the present disclosure. As shown in Figure 7B, the communication device 7200 may include: at least one of a transceiver module 7201, a processing module 7202, etc. In some embodiments, the above-mentioned transceiver module is used to receive the first information. Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (for example, step S3101, but not limited to this) performed by the second device in any of the above methods, which will not be repeated here. Optionally, the above-mentioned processing module is used to execute at least one of the other steps performed by the second device in any of the above methods, which will not be repeated here.

[0291] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0292] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0293] Figure 8A is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device), a terminal (e.g., a user equipment), a chip, a chip system, or a processor that supports a network device in implementing any of the above methods, or a chip, a chip system, or a processor that supports a terminal in implementing any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0294] As shown in Figure 8A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The communication device 8100 is used to perform any of the above methods.

[0295] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may be located outside the communication device 8100.

[0296] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceiver 8103 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S3101 and step S3103, but not limited thereto), and the processor 8101 performs at least one of the other steps (for example, step S3102, but not limited thereto).

[0297] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0298] In some embodiments, the communication device 8100 may include one or more interface circuits. Optionally, the interface circuits are connected to the memory 8102 and may be used to receive signals from the memory 8102 or other devices, or to send signals to the memory 8102 or other devices. For example, the interface circuits may read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0299] The communication device 8100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 8100 described in the embodiments of the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0300] FIG8B is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG8B , but the present disclosure is not limited thereto.

[0301] The chip 8200 includes one or more processors 8201 , and the chip 8200 is configured to execute any of the above methods.

[0302] In some embodiments, the chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to the memory 8203. The interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and can be used to send signals to the memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in the memory 8203 and send the instructions to the processor 8201.

[0303] In some embodiments, the interface circuit 8202 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S3101, step S3103, but not limited to this), and the processor 8201 performs at least one of the other steps (for example, step S3102, but not limited to this).

[0304] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0305] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be outside the chip 8200.

[0306] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0307] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0308] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. An information processing method, characterized in that: Executed by a first device, the method includes: determining first information, the first information being used to indicate a degree of beam squint experienced by the first device; The first information is sent to the second device.

2. The method according to claim 1, characterized in that The method further comprises: Second information is received, where the second information is used to instruct the first device to send the first information.

3. The method according to claim 2, characterized in that The second information is carried in at least one of the following: Downlink control information DCI; Media Access Control Element MAC CE message; Radio Resource Control RRC message.

4. The method according to any one of claims 1 to 3, characterized in that: The distribution of the transmitting antenna ports of the second device is one-dimensional, and the first information includes a first parameter β, and the β is determined in the following manner: Acquire at least one channel matrix from the second device to the first device; Determine a first covariance matrix C according to the at least one channel matrix; Perform eigenvalue decomposition on C to determine the standard orthogonal basis U of the signal subspace s ; According to the U s determining the β; in, λ1 and λ2 are matrices The largest eigenvalue and the second largest eigenvalue, U s,1 and U s,2 are respectively s The first N t -1 row submatrix and the U s After N t -1 row submatrix, N t is the number of transmitting antenna ports in one polarization direction among the transmitting antenna ports.

5. The method according to claim 4, characterized in that The first covariance matrix is Among them, H p (k) is a sub-matrix corresponding to the p-th polarization direction of the transmitting antenna port in the k-th channel matrix.

6. The method according to any one of claims 1 to 3, characterized in that: The distribution of the transmitting antenna ports of the second device is two-dimensional, and the first information includes at least one of the following: The second parameter β (v) , used to indicate the degree of beam squint in the vertical dimension to which the first device is subjected; The third parameter β (h) , used to indicate the degree of horizontal beam squint experienced by the first device; The β (v) With the β (h) The mean of The β (v) With the β (h) The maximum value in ; The β (v) With the β (h) The minimum value in .

7. The method according to claim 6, characterized in that The β (v) Determined by: Acquire at least one channel matrix from the second device to the first device; Determine a second covariance matrix C according to the at least one channel matrix (v) , the C (v) is the covariance matrix of the vertical dimension; For the C (v) Perform eigenvalue decomposition to determine the standard orthogonal basis of the signal subspace According to the Determine the β (v) ; in, and The matrices are The largest and second largest eigenvalues ​​of and Respectively Before The submatrices composed of rows and After The submatrix consists of rows, is the number of transmitting antenna ports in a vertical dimension in one polarization direction among the transmitting antenna ports.

8. The method according to claim 7, characterized in that The second covariance matrix is in, is a sub-matrix of the c-th column antenna port in the p-th polarization direction corresponding to the transmitting antenna port in the k-th channel matrix.

9. The method according to claim 6, characterized in that The β (h) Determined by: Acquire at least one channel matrix from the second device to the first device; Determine a third covariance matrix C according to the at least one channel matrix (h) , the C (h) is the covariance matrix of the horizontal dimension; For the C (h) Perform eigenvalue decomposition to determine the standard orthogonal basis of the signal subspace According to the Determine the β (h) ; in, and The matrices are The largest and second largest eigenvalues ​​of and Respectively Before The submatrices composed of rows and After The submatrix consists of rows, is the number of transmitting antenna ports in a horizontal dimension in one polarization direction among the transmitting antenna ports.

10. The method according to claim 9, characterized in that The third covariance matrix is in, It is a sub-matrix of the r-th row antenna port in the p-th polarization direction corresponding to the transmitting antenna port in the k-th channel matrix.

11. An information processing method, characterized in that: Executed by a second device, the method includes: First information is received, where the first information is used to indicate a degree of beam squint experienced by the first device.

12. The method according to claim 11, characterized in that The method further comprises: Sending second information, where the second information is used to instruct the first device to send the first information.

13. The method according to claim 12, characterized in that The second information is carried in at least one of the following: DCI; MAC CE message; RRC message.

14. The method according to any one of claims 11 to 13, characterized in that: The distribution of the transmitting antenna ports of the second device is one-dimensional, and the first information includes a first parameter β, and the β is determined in the following manner: Acquire at least one channel matrix from the second device to the first device; Determine a first covariance matrix C according to the at least one channel matrix; Perform eigenvalue decomposition on C to determine the standard orthogonal basis U of the signal subspace s ; According to the U s determining the β; in, λ1 and λ2 are matrices The largest eigenvalue and the second largest eigenvalue, U s,1 and U s,2 are respectively s The first N t -1 row submatrix and the U s After N t -1 row submatrix, N t is the number of transmitting antenna ports in one polarization direction among the transmitting antenna ports.

15. The method according to claim 14, characterized in that The first covariance matrix is Among them, H p (k) is a sub-matrix corresponding to the p-th polarization direction of the transmitting antenna port in the k-th channel matrix.

16. The method according to any one of claims 11 to 13, characterized in that: The distribution of the transmitting antenna ports of the second device is two-dimensional, and the first information includes at least one of the following: The second parameter β (v) , used to indicate the degree of beam squint in the vertical dimension to which the first device is subjected; The third parameter β (h) , used to indicate the degree of horizontal beam squint experienced by the first device; The β (v) With the β (h) The mean of The β (v) With the β (h) The maximum value in ; The β (v) With the β (h) The minimum value in .

17. The method according to claim 16, characterized in that The β (v) It is determined by: Acquire at least one channel matrix from the second device to the first device; Determine a second covariance matrix C according to the at least one channel matrix (v) , the C (v) is the covariance matrix of the vertical dimension; For the C (v) Perform eigenvalue decomposition to determine the standard orthogonal basis of the signal subspace According to the Determine the β (v) ; in, and The matrices are The largest and second largest eigenvalues ​​of and Respectively Before The submatrices composed of rows and After The submatrix consists of rows, is the number of transmitting antenna ports in a vertical dimension in one polarization direction among the transmitting antenna ports.

18. The method according to claim 17, characterized in that The second covariance matrix is in, is a sub-matrix of the c-th column antenna port in the p-th polarization direction corresponding to the transmitting antenna port in the k-th channel matrix.

19. The method according to claim 16, characterized in that The β (h) It is determined by: Acquire at least one channel matrix from the second device to the first device; Determine a third covariance matrix C according to the at least one channel matrix (h) , the C (h) is the covariance matrix of the horizontal dimension; For the C (h) Perform eigenvalue decomposition to determine the standard orthogonal basis of the signal subspace According to the Determine the β (h) ; in, and The matrices are The largest and second largest eigenvalues ​​of and Respectively Before The submatrices composed of rows and After The submatrix consists of rows, is the number of transmitting antenna ports in a horizontal dimension in one polarization direction among the transmitting antenna ports.

20. The method according to claim 19, characterized in that The third covariance matrix is in, It is a sub-matrix of the r-th row antenna port in the p-th polarization direction corresponding to the transmitting antenna port in the k-th channel matrix.

21. A communication device, characterized in that: The device comprises: A processing module is configured to determine first information, wherein the first information is used to indicate a degree of beam squint experienced by the first device; The transceiver module is configured to send the first information to the second device.

22. A communication device, characterized in that: The device comprises: The transceiver module is configured to receive first information, where the first information is used to indicate a degree of beam squint experienced by the first device.

23. A communication device, characterized in that: The device comprises: one or more processors; Wherein, the communication device is used to execute the information processing method according to any one of claims 1-10.

24. A communication device, characterized in that: The device comprises: one or more processors; Wherein, the communication device is used to execute the information processing method described in any one of claims 11-20.

25. A communication system, characterized in that: The invention comprises a first device and a second device, wherein the first device is configured to implement the information processing method according to any one of claims 1 to 10, and the second device is configured to implement the information processing method according to any one of claims 11 to 20.

26. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to execute the information processing method according to any one of claims 1 to 10 or any one of claims 11 to 20.

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