Methods, apparatus, equipment and storage media for determining the direction of OAM beam transmission

Abstract

This disclosure proposes a method, apparatus, terminal device, access network device, and storage medium for determining the OAM beam transmission direction, belonging to the field of communication technology. The method includes: a transmitting end determining multiple transmission directions; sequentially transmitting a first OAM beam to a receiving end according to the multiple transmission directions; and receiving beam information transmitted by the receiving end, and determining the OAM beam transmission direction based on the beam information. The method for determining the OAM beam transmission direction provided by this disclosure does not require obtaining the deflection state of the transceiver array, avoiding the problem of "large errors and high costs caused by obtaining the deflection state of the transceiver array," effectively solving the OAM communication problem under misalignment conditions, and has a wide range of applications and better communication performance.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a method, apparatus, terminal equipment, access network equipment, and storage medium for determining the direction of OAM beam transmission. Background Technology

[0002] Orbital angular momentum (OAM), as a novel modulation dimension, enables the simultaneous transmission of multiple information streams within the same frequency band, effectively addressing the problem of spectrum resource scarcity. Currently, OAM communication systems are typically built based on Uniform Circular Array (UCA). OAM communication systems based on UCA require aligned transmitting and receiving antenna axes to ensure communication efficiency. However, in reality, there are bound to be non-ideal alignments between the transmitting and receiving antenna axes. In such cases, compensation schemes are needed to control the OAM beam so that its radiation direction aligns with the receiving direction to ensure system performance.

[0003] In related technologies, when controlling the OAM beam to align its radiation direction with the receiving direction, it is usually necessary to pre-acquire or compare the spectrum analysis results of the signal received by the receiving array with the spectrum under alignment to estimate the deflection state of the transceiver array, and then control the radiation direction of the OAM beam based on the deflection state of the transceiver array. However, acquiring or estimating the deflection state of the transceiver array has large errors and is costly. Furthermore, since it is impossible to determine whether the known deflection state of the transceiver array is the actual deflection state of the array, it will affect the communication performance. Additionally, the OAM beam radiation direction control methods in related technologies only support static models, limiting their applicability. Summary of the Invention

[0004] This disclosure presents a method, apparatus, terminal equipment, access network equipment, and storage medium for determining the direction of OAM beam transmission. These solutions address the technical problems in related technologies where OAM communication suffers from large errors, high costs, and poor communication performance due to the need to know the deflection state of the transceiver array, as well as the limited applicability of OAM communication in related technologies.

[0005] The method for determining the OAM beam transmission direction proposed in one embodiment of this disclosure, applied at the transmitting end, includes:

[0006] Multiple launch directions can be determined;

[0007] Multiple first OAM beams are transmitted to the receiving end in the multiple transmission directions;

[0008] The receiver receives the beam information sent by the receiving end and determines the OAM beam transmission direction based on the beam information.

[0009] The method for determining the OAM beam transmission direction, proposed in another embodiment of this disclosure, is applied at the receiving end and includes:

[0010] Receive multiple first OAM beams transmitted by the transmitting end;

[0011] The target transmission beam is determined from the plurality of first OAM beams based on the detection results associated with the plurality of first OAM beams;

[0012] The beam information of the target transmission beam is sent to the transmitting end so that the transmitting end can determine the OAM beam transmission direction based on the beam information.

[0013] Another embodiment of this disclosure provides an OAM beam transmission direction determination device, comprising:

[0014] The determination module is used to determine multiple launch directions;

[0015] The transmitting module is used to sequentially transmit multiple first OAM beams to the receiving end according to the multiple transmitting directions;

[0016] The receiving module is used to receive the beam information sent by the receiving end and determine the OAM beam transmission direction based on the beam information.

[0017] Another embodiment of this disclosure provides an OAM beam transmission direction determination device, comprising:

[0018] The receiving module is used to receive multiple first OAM beams transmitted by the transmitting end;

[0019] A determination module is used to determine the target transmission beam from the plurality of first OAM beams based on detection results associated with the plurality of first OAM beams;

[0020] The transmitting module is used to transmit the beam information of the target transmission beam to the transmitting end, so that the transmitting end can determine the OAM beam transmission direction based on the beam information.

[0021] Another embodiment of this disclosure provides a terminal device, including: a transceiver; a memory; and a processor, which are respectively connected to the transceiver and the memory, and configured to control the wireless signal transmission and reception of the transceiver by executing computer-executable instructions on the memory, and to implement the method proposed in any of the above embodiments.

[0022] Another aspect of this disclosure provides an access network device, comprising: a transceiver; a memory; and a processor, respectively connected to the transceiver and the memory, configured to control the wireless signal transmission and reception of the transceiver by executing computer-executable instructions on the memory, and capable of implementing the method proposed in any of the above embodiments.

[0023] In another aspect of this disclosure, a computer storage medium is provided, wherein the computer storage medium stores computer-executable instructions; after being executed by a processor, the computer-executable instructions can implement the method proposed in any of the above embodiments.

[0024] In the method for determining the OAM beam transmission direction provided in this embodiment, the transmitting end determines multiple transmission directions, sequentially transmits multiple first OAM beams to the receiving end according to the multiple transmission directions, and receives the beam information transmitted by the receiving end, and determines the OAM beam transmission direction based on the beam information; and the receiving end determines multiple receiving directions, receives multiple second OAM transmission beams transmitted by the transmitting end according to the multiple receiving directions respectively, to obtain multiple second OAM receiving beams, and determines the receiving direction of the OAM beam based on the signal quality of the multiple second OAM receiving beams. Therefore, in this embodiment, the effective OAM beam transmission direction and OAM beam receiving direction can be determined only based on the determined multiple transmission directions of the transmitting end and the multiple receiving directions of the receiving end, without needing to obtain the deflection state of the transceiver array. Thus, OAM communication can be achieved even when the deflection state of the transceiver array is unknown, avoiding the problem of "large errors and high costs caused by obtaining the deflection state of the transceiver array," effectively solving the OAM communication problem under misalignment conditions, and achieving better communication performance.

[0025] Furthermore, because the method provided in this embodiment is executed before each OAM beam transmission by the transmitting end or reception end, even when the transmitting end or reception end is in a mobile state, the transmitting end will first determine the valid OAM beam transmission direction before transmitting the OAM beam to achieve communication, and the receiving end will also first determine the valid OAM beam reception direction before receiving the OAM beam. Therefore, the method provided in this embodiment can also be applied to mobile communication scenarios, thus having a wide range of applications.

[0026] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0027] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0028] Figure 1 This is a flowchart illustrating a method for determining the OAM beam transmission direction according to an embodiment of this disclosure.

[0029] Figure 2 A flowchart illustrating a method for determining the OAM beam transmission direction provided in another embodiment of this disclosure;

[0030] Figure 3 This is a flowchart illustrating a method for determining the OAM beam transmission direction provided in another embodiment of the present disclosure;

[0031] Figure 4 A flowchart illustrating a method for determining the OAM beam transmission direction provided in yet another embodiment of this disclosure;

[0032] Figure 5 A flowchart illustrating a method for determining the OAM beam transmission direction provided in yet another embodiment of this disclosure;

[0033] Figure 6 A flowchart illustrating a method for determining the OAM beam transmission direction provided in yet another embodiment of this disclosure;

[0034] Figure 7 A flowchart illustrating a method for determining the OAM beam transmission direction provided in yet another embodiment of this disclosure;

[0035] Figure 8 A flowchart illustrating a method for determining the OAM beam transmission direction provided in yet another embodiment of this disclosure;

[0036] Figure 9 A flowchart illustrating a method for determining the OAM beam transmission direction provided in yet another embodiment of this disclosure;

[0037] Figure 10 This is a schematic diagram of the structure of an OAM beam transmission direction determination device provided in one embodiment of the present disclosure;

[0038] Figure 11 This is a schematic diagram of the structure of an OAM beam transmission direction determination device provided in one embodiment of the present disclosure;

[0039] Figure 12 This is a block diagram of a terminal device provided in one embodiment of the present disclosure;

[0040] Figure 13 This is a block diagram of an access network device provided in one embodiment of the present disclosure. Detailed Implementation

[0041] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this disclosure as detailed in the appended claims.

[0042] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms “a” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0043] It should be understood that although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of embodiments of this disclosure, and similarly, second information may also be referred to as first information. Depending on the context, the words “if” and “suppose” as used herein may be interpreted as “when”, “when”, or “in response to a determination”.

[0044] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0045] In the method for determining the OAM beam transmission direction provided in this embodiment, the transmitting end determines multiple transmission directions, sequentially transmits a first OAM beam to the receiving end according to these multiple transmission directions, and receives the beam information transmitted by the receiving end. The OAM beam transmission direction is then determined based on this beam information. Therefore, in this embodiment, the effective OAM beam transmission direction can be determined solely based on the determined multiple transmission directions, without needing to obtain the deflection state of the transceiver array. This allows OAM communication to be achieved even when the deflection state of the transceiver array is unknown, avoiding the problem of "large errors and high costs due to obtaining the deflection state of the transceiver array." This effectively solves the OAM communication problem under misalignment conditions and provides better communication performance.

[0046] Furthermore, since the method provided in this embodiment is executed before each OAM beam transmission by the transmitting end, even when the transmitting end is in a mobile state, the valid OAM beam transmission direction is determined before the OAM beam is transmitted to achieve communication. Therefore, the method provided in this embodiment can also be applied to mobile communication scenarios, thus having a wide range of applications.

[0047] The method, apparatus, terminal equipment, access network equipment, and storage medium for determining the OAM beam transmission direction provided in this disclosure are described in detail below with reference to the accompanying drawings.

[0048] Figure 1 This is a flowchart illustrating a method for determining the OAM beam transmission direction provided in an embodiment of this disclosure, applied at the transmitting end, such as... Figure 1 As shown, the method for determining the OAM beam transmission direction may include the following steps:

[0049] Step 101: Determine multiple launch directions.

[0050] It should be noted that the transmitting end can be an access network device (e.g., a base station) or a UE (User Equipment, terminal device). Furthermore, the transmitting end in this embodiment can be any UE or any base station. The UE can be a device that provides voice and / or data connectivity to a user. The UE can communicate with one or more core networks via a RAN (Radio Access Network). The UE can be an IoT terminal, such as a sensor device, a mobile phone (or "cellular" phone), and a computer with an IoT terminal. For example, it can be a fixed, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted device. Examples include a station (STA), subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, or user agent. Alternatively, the UE can also be a device of an unmanned aerial vehicle (UAV). Alternatively, the UE can be an in-vehicle device, such as a vehicle computer with wireless communication capabilities, or a wireless terminal connected to an external vehicle computer. Alternatively, the UE can be a roadside device, such as a street light, traffic light, or other roadside device with wireless communication capabilities.

[0051] Furthermore, in one embodiment of this disclosure, the plurality of transmission directions may be determined based on the transmission azimuth angle and / or the transmission depression angle of the OAM beam. The transmission azimuth angle may be the angle between the projection of the OAM beam axis onto the UCA (Uniform Circular Array) plane of the transmitting end and the coordinate axis of the UCA at the transmitting end, and the transmission depression angle may be the angle between the OAM beam axis and the normal to the plane of the UCA at the transmitting end. The coordinate axis of the UCA at the transmitting end may be any coordinate axis in a coordinate system established on the UCA at the transmitting end. Furthermore, in one embodiment of this disclosure, the coordinate system established by the UCA at the transmitting end may be a coordinate system with the origin of the UCA at the transmitting end as the origin and the plane containing the UCA at the transmitting end as the XOY plane.

[0052] Step 102: Transmit multiple first OAM beams to the receiver in multiple transmission directions.

[0053] In one embodiment of this disclosure, when the transmitting end transmits multiple first OAM beams in multiple transmission directions, the receiving end always receives the multiple first OAM beams in a fixed receiving direction.

[0054] In one embodiment of this disclosure, the transmitting end may transmit multiple first OAM beams sequentially at a certain time interval, or it may transmit multiple first OAM beams sequentially at unequal time intervals.

[0055] In one embodiment of this disclosure, the transmitting end may sequentially transmit multiple first OAM beams in multiple transmission directions. In another embodiment of this disclosure, the transmitting end may not need to sequentially transmit multiple first OAM beams in multiple transmission directions, but only needs to ensure that the transmitted multiple first OAM beams can cover multiple receiving directions of the receiving end.

[0056] Step 103: Receive the beam information sent by the receiver and determine the OAM beam transmission direction based on the beam information.

[0057] In one embodiment of this disclosure, the beam information received by the transmitting end may be the beam information corresponding to the target transmit beam selected by the receiving end from multiple first OAM beams based on detection results associated with multiple first OAM beams. In one embodiment of this disclosure, the receiving end may determine the beam with the best signal quality among multiple first OAM receive beams as the target receive beam based on the signal quality of the multiple first OAM beams. This beam information may include the transmit azimuth angle and / or transmit depression angle corresponding to the target transmit beam. For example, the detection results associated with multiple first OAM beams may be the signal strength (e.g., RSRP) and / or signal quality (e.g., RSRQ) of the first OAM beams, or the Channel State Indication (CSI) estimate of the first OAM beams, etc.

[0058] In one embodiment of this disclosure, the receiving end may select the target transmit beam from a plurality of first OAM beams based on RSRP (Reference Signal Receiving Power) and / or RSRQ (Reference Signal Receiving Quality). In one embodiment of this disclosure, the beam with the highest RSRP and / or highest RSRQ among the plurality of first OAM beams may be determined as the target transmit beam.

[0059] In another embodiment of this disclosure, the receiving end may select the target transmit beam from a plurality of first OAM beams based on BER (Bit Error Rate) and / or BLER (Block Error Ratio). In one embodiment of this disclosure, the beam with the smallest BER and / or smallest BLER among the plurality of first OAM beams may be determined as the target transmit beam.

[0060] It should be noted that, in one embodiment of this disclosure, the transmitting end can perform the following before each transmission of the OAM beam: Figure 1 The method shown allows the corresponding OAM beam transmission direction to be determined each time the transmitter sends an OAM signal.

[0061] In the method for determining the OAM beam transmission direction provided in this embodiment, the transmitting end determines multiple transmission directions, sequentially transmits a first OAM beam to the receiving end according to these multiple transmission directions, and receives the beam information transmitted by the receiving end. The OAM beam transmission direction is then determined based on this beam information. Therefore, in this embodiment, the effective OAM beam transmission direction can be determined solely based on the determined multiple transmission directions, without needing to obtain the deflection state of the transceiver array. This allows OAM communication to be achieved even when the deflection state of the transceiver array is unknown, avoiding the problem of "large errors and high costs due to obtaining the deflection state of the transceiver array." This effectively solves the OAM communication problem under misalignment conditions and provides better communication performance.

[0062] Furthermore, since the method provided in this embodiment is executed before each OAM beam transmission by the transmitting end, even when the transmitting end is in a mobile state, the valid OAM beam transmission direction is determined before the OAM beam is transmitted to achieve communication. Therefore, the method provided in this embodiment can also be applied to mobile communication scenarios, thus having a wide range of applications.

[0063] Figure 2 This is a flowchart illustrating a method for determining the OAM beam transmission direction according to another embodiment of this disclosure, applied at the transmitting end, such as... Figure 2 As shown, the method for determining the OAM beam transmission direction may include the following steps:

[0064] Step 201: Determine the azimuth combination for transmitting the first OAM beam.

[0065] The transmit azimuth angle combination includes multiple transmit azimuth angles, which are the angles between the projection of the first OAM beam axis onto the UCA plane of the transmitting end and the coordinate axes of the UCA of the transmitting end.

[0066] The coordinate axes of the UCA at the transmitting end are any axes in a coordinate system established on the UCA surface at the transmitting end. The method for establishing this coordinate system may include: establishing a coordinate system with the origin of the UCA at the transmitting end as the origin and the plane where the UCA at the transmitting end is located as the XOY plane.

[0067] Furthermore, in one embodiment of this disclosure, the combination of transmission azimuth angles can be:

[0068] Where M1 is an integer, and M1 is used to indicate the number of transmission azimuth angles in the transmission azimuth angle combination.

[0069] Step 202: Determine the combination of launch depression angles when launching the first OAM beam.

[0070] The transmit depression angle combination includes multiple transmit depression angles, which are the angles between the axis of the first OAM beam and the normal to the UCA plane of the transmitting end.

[0071] In one embodiment of this disclosure, the launch depression angle combination can be:

[0072] Where N1 is an integer, and N1 is used to indicate the number of launch depression angles in the launch depression angle combination.

[0073] Step 203: Generate multiple launch directions based on the combination of launch azimuth angle and / or launch depression angle.

[0074] In one embodiment of this disclosure, the transmitting end can determine a transmission direction based on any transmission azimuth angle in the transmission azimuth angle combination and / or any transmission depression angle in the transmission depression angle combination. Thus, multiple transmission directions can be generated by traversing all transmission azimuth angles in the transmission azimuth angle combination and / or all transmission depression angles in the transmission depression angle combination.

[0075] It should be noted that the larger the values ​​of M1 and N1, the more transmission azimuth angles are in the transmission azimuth angle combination and the more transmission depression angles are in the transmission depression angle combination. As a result, there are more transmission directions determined based on the transmission azimuth angle combination and / or transmission depression angle combination. This increases the probability that the final determined OAM beam transmission direction is the optimal transmission direction, thus improving the accuracy of determining the OAM beam transmission direction.

[0076] Step 204: Transmit the first OAM beam to the receiver in multiple transmission directions.

[0077] In one embodiment of this disclosure, when the transmitting end transmits the first OAM beam in multiple transmission directions, the receiving end always receives the first OAM beam in a fixed receiving direction.

[0078] Step 205: Receive the beam information sent by the receiving end and determine the OAM beam transmission direction based on the beam information.

[0079] In one embodiment of this disclosure, the beam information received by the transmitting end may be the beam information corresponding to the target transmission beam selected by the receiving end from multiple first OAM beams based on the detection results associated with multiple first OAM beams.

[0080] In one embodiment of this disclosure, the receiving end can determine the beam with the best signal quality among the multiple first OAM receiving beams as the target receiving beam based on the signal quality of the multiple first OAM receiving beams. This beam information may include the transmission azimuth angle and / or transmission depression angle corresponding to the target transmitting beam.

[0081] In one embodiment of this disclosure, the receiving end may select the target transmit beam from a plurality of first OAM beams based on RSRP and / or RSRQ. In one embodiment of this disclosure, the beam with the largest RSRP and / or largest RSRQ among the plurality of first OAM beams may be determined as the target transmit beam.

[0082] In another embodiment of this disclosure, the receiver may select the target transmit beam from a plurality of first OAM beams based on BER and / or BLER. In one embodiment of this disclosure, the beam with the smallest BER and / or the smallest BLER among the plurality of first OAM beams may be determined as the target transmit beam.

[0083] It should be noted that, in one embodiment of this disclosure, the transmitting end can perform the following before each transmission of the OAM beam: Figure 2 The method shown allows the corresponding OAM beam transmission direction to be determined each time the transmitter sends an OAM signal.

[0084] In the method for determining the OAM beam transmission direction provided in this embodiment, the transmitting end determines multiple transmission directions, sequentially transmits a first OAM beam to the receiving end according to these multiple transmission directions, and receives the beam information transmitted by the receiving end. The OAM beam transmission direction is then determined based on this beam information. Therefore, in this embodiment, the effective OAM beam transmission direction can be determined solely based on the determined multiple transmission directions, without needing to obtain the deflection state of the transceiver array. This allows OAM communication to be achieved even when the deflection state of the transceiver array is unknown, avoiding the problem of "large errors and high costs due to obtaining the deflection state of the transceiver array." This effectively solves the OAM communication problem under misalignment conditions and provides better communication performance.

[0085] Furthermore, since the method provided in this embodiment is executed before each OAM beam transmission by the transmitting end, even when the transmitting end is in a mobile state, the valid OAM beam transmission direction is determined before the OAM beam is transmitted to achieve communication. Therefore, the method provided in this embodiment can also be applied to mobile communication scenarios, thus having a wide range of applications.

[0086] Figure 3This is a flowchart illustrating a method for determining the OAM beam transmission direction according to another embodiment of this disclosure, applied at the transmitting end, such as... Figure 3 As shown, the method for determining the OAM beam transmission direction may include the following steps:

[0087] Step 301: Determine the azimuth combination for transmitting the first OAM beam.

[0088] The transmit azimuth angle combination includes multiple transmit azimuth angles, which are the angles between the projection of the first OAM beam axis onto the UCA plane of the transmitting end and the coordinate axis of the UCA of the transmitting end.

[0089] The coordinate axes of the UCA at the transmitting end are any axes in the coordinate system established on the UCA surface of the transmitting end. The method of establishing the coordinate system may include: establishing a coordinate system with the origin of the UCA at the transmitting end as the origin and the plane where the UCA at the transmitting end is located as the XOY plane.

[0090] Furthermore, in one embodiment of this disclosure, the combination of transmission azimuth angles can be:

[0091] Where M1 is an integer, and M1 is used to indicate the number of transmission azimuth angles in the transmission azimuth angle combination.

[0092] Step 302: Determine the combination of launch depression angles when launching the first OAM beam.

[0093] The transmit depression angle combination includes multiple transmit depression angles, which are the angles between the axis of the first OAM beam and the normal to the UCA plane of the transmitting end.

[0094] In one embodiment of this disclosure, the launch depression angle combination can be:

[0095] Where N1 is an integer, and N1 is used to indicate the number of launch depression angles in the launch depression angle combination.

[0096] Step 303: Determine the multiple transmit beam deflection values ​​corresponding to the UCA of the transmitting end based on the transmit azimuth angle combination and / or transmit depression angle combination.

[0097] The transmit beam deflection amount corresponding to the UCA at the transmitting end includes the beam deflection amount corresponding to each antenna element in the UCA at the transmitting end, wherein the beam deflection amount corresponding to each antenna element in the UCA at the transmitting end is different. Furthermore, in one embodiment of this disclosure, the transmit beam deflection amount corresponding to the UCA at the transmitting end will also be different when the transmit azimuth angle and / or transmit depression angle are different.

[0098] In one embodiment of this disclosure, the transmit beam deflection W corresponding to the i-th antenna element 1(m,n) for:

[0099] Where λ is the wavelength of the first OAM beam, and R t1 Let φ be the radius of the UCA at the transmitting end. m1 For any combination of launch azimuth angles, θ n1 Let j be any transmit depression angle in the transmit depression angle combination, j be a complex number, and K be an integer. K is used to indicate the number of UCA antenna elements at the transmitting end.

[0100] Therefore, a transmit beam deflection can be determined by a transmit azimuth angle and / or a transmit depression angle, which corresponds to the transmit beam deflection of the transmitter's UCA. By traversing all transmit azimuth angle combinations and / or all transmit depression angle combinations, multiple transmit beam deflections corresponding to the transmitter's UCA can be determined.

[0101] Step 304: Generate multiple transmission directions based on the multiple transmit beam deflection yaws corresponding to the UCA of the transmitter and the weights of each antenna element.

[0102] In one embodiment of this disclosure, each antenna element has a corresponding weight 'a':

[0103] Where l is the mode of OAM, φ is the angle between the projection of the antenna element onto the UCA plane of the transmitter and the coordinate axis of the UCA of the transmitter, and j is a complex number.

[0104] In one embodiment of this disclosure, a method for generating multiple transmission directions based on multiple transmit beam deflection steerables corresponding to the UCA of the transmitting end and the weight of each antenna array may include: generating a transmission direction by multiplying the transmit beam deflection steerables corresponding to each antenna array included in the transmit beam deflection steerables corresponding to the UCA of the transmitting end with the weight of each antenna array; thereby, multiple transmission directions can be determined by traversing the multiple transmit beam deflection steerables corresponding to the UCA of the transmitting end.

[0105] Step 305: Transmit the first OAM beam to the receiver in multiple transmission directions.

[0106] In one embodiment of this disclosure, when the transmitting end transmits the first OAM beam in multiple transmission directions, the receiving end always receives the first OAM beam in a fixed receiving direction.

[0107] Step 306: Receive the beam information sent by the receiver and determine the OAM beam transmission direction based on the beam information.

[0108] In one embodiment of this disclosure, the beam information received by the transmitting end may be the beam information corresponding to the target transmit beam selected by the receiving end from multiple first OAM beams based on detection results associated with multiple first OAM beams. In another embodiment of this disclosure, the receiving end may determine the beam with the best signal quality among the multiple first OAM receive beams as the target receive beam based on the signal quality of the multiple first OAM beams. This beam information may include the transmit azimuth angle and / or transmit depression angle corresponding to the target transmit beam.

[0109] In one embodiment of this disclosure, the receiving end may select the target transmit beam from a plurality of first OAM beams based on RSRP and / or RSRQ. In one embodiment of this disclosure, the beam with the largest RSRP and / or largest RSRQ among the plurality of first OAM beams may be determined as the target transmit beam.

[0110] In another embodiment of this disclosure, the receiver may select the target transmit beam from a plurality of first OAM beams based on BER and / or BLER. In one embodiment of this disclosure, the beam with the smallest BER and / or the smallest BLER among the plurality of first OAM beams may be determined as the target transmit beam.

[0111] It should be noted that, in one embodiment of this disclosure, the transmitting end can perform the following before each transmission of the OAM beam: Figure 3 The method shown allows the corresponding OAM beam transmission direction to be determined each time the transmitter sends an OAM signal.

[0112] In the method for determining the OAM beam transmission direction provided in this embodiment, the transmitting end determines multiple transmission directions, sequentially transmits a first OAM beam to the receiving end according to these multiple transmission directions, and receives the beam information transmitted by the receiving end. The OAM beam transmission direction is then determined based on this beam information. Therefore, in this embodiment, the effective OAM beam transmission direction can be determined solely based on the determined multiple transmission directions, without needing to obtain the deflection state of the transceiver array. This allows OAM communication to be achieved even when the deflection state of the transceiver array is unknown, avoiding the problem of "large errors and high costs due to obtaining the deflection state of the transceiver array." This effectively solves the OAM communication problem under misalignment conditions and provides better communication performance.

[0113] Furthermore, since the method provided in this embodiment is executed before each OAM beam transmission by the transmitting end, even when the transmitting end is in a mobile state, the valid OAM beam transmission direction is determined before the OAM beam is transmitted to achieve communication. Therefore, the method provided in this embodiment can also be applied to mobile communication scenarios, thus having a wide range of applications.

[0114] Figure 4 This is a flowchart illustrating a method for determining the OAM beam transmission direction provided in an embodiment of this disclosure, applied at the transmitting end, such as... Figure 4 As shown, the method for determining the OAM beam transmission direction may include the following steps:

[0115] Step 401: Determine multiple launch directions.

[0116] It should be noted that the transmitting end can be either a base station or a UE (User Equipment). Furthermore, the transmitting end in this embodiment can be any UE or any access network device (e.g., a base station).

[0117] Furthermore, in one embodiment of this disclosure, the multiple transmission directions when the transmitting end transmits the OAM beam can be generated based on the transmission azimuth angle and / or the transmission depression angle of the OAM beam. The transmission azimuth angle can be the angle between the projection of the OAM beam axis onto the UCA (Uniform Circular Array) plane of the transmitting end and the coordinate axis of the UCA of the transmitting end. The transmission depression angle can be the angle between the OAM beam axis and the normal to the UCA plane of the transmitting end. The coordinate axis of the UCA of the transmitting end can be any coordinate axis in the coordinate system established by the UCA of the transmitting end. In one embodiment of this disclosure, the coordinate system established by the UCA of the transmitting end can be a coordinate system with the origin of the UCA of the transmitting end as the origin and the plane containing the UCA of the transmitting end as the XOY plane.

[0118] Step 402: Transmit the first OAM beam to the receiver in multiple transmission directions.

[0119] In one embodiment of this disclosure, when the transmitting end transmits the first OAM beam sequentially in multiple transmission directions, the receiving end always receives the first OAM beam in a fixed receiving direction.

[0120] Step 403: Receive the beam information sent by the receiver and determine the OAM beam transmission direction based on the beam information.

[0121] In one embodiment of this disclosure, the beam information received by the transmitting end may be the beam information corresponding to the target transmit beam selected by the receiving end from a plurality of first OAM beams based on detection results associated with a plurality of first OAM beams. In another embodiment of this disclosure, the receiving end may determine the beam with the best signal quality among the plurality of first OAM receive beams as the target receive beam based on the signal quality of the plurality of first OAM beams. This beam information may include the transmit azimuth angle and / or transmit depression angle corresponding to the target transmit beam.

[0122] In one embodiment of this disclosure, the receiving end may select the target transmit beam from a plurality of first OAM beams based on RSRP and / or RSRQ. In one embodiment of this disclosure, the beam with the largest RSRP and / or largest RSRQ among the plurality of first OAM beams may be determined as the target transmit beam.

[0123] In another embodiment of this disclosure, the receiver may select the target transmit beam from a plurality of first OAM beams based on BER and / or BLER. In one embodiment of this disclosure, the beam with the smallest BER and / or the smallest BLER among the plurality of first OAM beams may be determined as the target transmit beam.

[0124] Step 404: Transmit multiple second OAM transmission beams according to the OAM beam transmission direction.

[0125] It should be noted that after the transmitting end determines the OAM beam transmission direction based on the received beam information, it will transmit multiple second OAM transmit beams according to the OAM beam transmission direction. The receiving end will then receive these multiple second OAM transmit beams from different receiving directions to obtain multiple second OAM receive beams. Based on the reception information of these multiple second OAM receive beams, the receiving direction of the OAM system will be determined.

[0126] In one embodiment of this disclosure, the transmitting end may sequentially transmit multiple second OAM transmit beams in multiple transmission directions. In another embodiment of this disclosure, the transmitting end may not need to sequentially transmit multiple second OAM transmit beams in multiple transmission directions, but only needs to ensure that the multiple second OAM transmit beams can cover multiple receiving directions of the receiving end. That is, the operation of transmitting multiple second OAM transmit beams does not need to have a specific order or continuity, as long as it is ensured that the second OAM transmit beam has been received in each of the multiple receiving directions of the receiving end.

[0127] It should be noted that, in one embodiment of this disclosure, the transmitting end can perform the following before each transmission of the OAM beam: Figure 4 The method shown allows the corresponding OAM beam transmission direction to be determined each time the transmitter sends an OAM signal.

[0128] In the method for determining the OAM beam transmission direction provided in this embodiment, the transmitting end determines multiple transmission directions, sequentially transmits a first OAM beam to the receiving end according to these multiple transmission directions, and receives the beam information transmitted by the receiving end. The OAM beam transmission direction is then determined based on this beam information. Therefore, in this embodiment, the effective OAM beam transmission direction can be determined solely based on the determined multiple transmission directions, without needing to obtain the deflection state of the transceiver array. This allows OAM communication to be achieved even when the deflection state of the transceiver array is unknown, avoiding the problem of "large errors and high costs due to obtaining the deflection state of the transceiver array." This effectively solves the OAM communication problem under misalignment conditions and provides better communication performance.

[0129] Furthermore, since the method provided in this embodiment is executed before each OAM beam transmission by the transmitting end, even when the transmitting end is in a mobile state, the valid OAM beam transmission direction is determined before the OAM beam is transmitted to achieve communication. Therefore, the method provided in this embodiment can also be applied to mobile communication scenarios, thus having a wide range of applications.

[0130] Figure 5 This is a flowchart illustrating a method for determining the OAM beam transmission direction provided in an embodiment of this disclosure, applied at the receiving end, such as... Figure 5 As shown, the method for determining the OAM beam transmission direction may include the following steps:

[0131] Step 501: Receive multiple first OAM beams transmitted by the transmitting end.

[0132] In one embodiment of this disclosure, the receiving end can be any UE or any access network device (e.g., a base station). It should be noted that when the sending end is a UE, the receiving end can be a base station; conversely, when the sending end is a base station, the receiving end can be a UE.

[0133] Furthermore, the receiving end receives multiple first OAM beams transmitted in a fixed direction.

[0134] Step 502: Determine the target transmission beam from the multiple first OAM beams based on the detection results associated with the multiple first OAM beams.

[0135] In one embodiment of this disclosure, the receiving end can determine the beam with the best signal quality among the multiple first OAM receiving beams as the target receiving beam based on the signal quality of the multiple first OAM beams.

[0136] In one embodiment of this disclosure, the receiver can select a target transmit beam from a plurality of first OAM beams based on RSRQ and / or RSRP. In another embodiment of this disclosure, the receiver can determine the OAM beam with the highest RSRQ and / or RSRP among the plurality of first OAM beams as the target transmit beam.

[0137] In one embodiment of this disclosure, the receiver can select a target transmit beam from a plurality of first OAM beams based on BER and / or BLER. In another embodiment of this disclosure, the receiver can determine the OAM beam with the smallest BER and / or smallest BLER among the plurality of first OAM beams as the target transmit beam.

[0138] Step 503: Send the beam information of the target transmission beam to the transmitter so that the transmitter can determine the OAM beam transmission direction based on the beam information.

[0139] In one embodiment of this disclosure, the beam information of the target transmitted beam may include, but is not limited to, the transmission azimuth angle and / or transmission depression angle of the target transmitted beam.

[0140] In the method for determining the OAM beam transmission direction provided in this embodiment, the transmitting end determines multiple transmission directions, sequentially transmits a first OAM beam to the receiving end according to these multiple transmission directions, and receives the beam information transmitted by the receiving end. The OAM beam transmission direction is then determined based on this beam information. Therefore, in this embodiment, the effective OAM beam transmission direction can be determined solely based on the determined multiple transmission directions, without needing to obtain the deflection state of the transceiver array. This allows OAM communication to be achieved even when the deflection state of the transceiver array is unknown, avoiding the problem of "large errors and high costs due to obtaining the deflection state of the transceiver array." This effectively solves the OAM communication problem under misalignment conditions and provides better communication performance.

[0141] Furthermore, since the method provided in this embodiment is executed before each OAM beam transmission by the transmitting end, even when the transmitting end is in a mobile state, the valid OAM beam transmission direction is determined before the OAM beam is transmitted to achieve communication. Therefore, the method provided in this embodiment can also be applied to mobile communication scenarios, thus having a wide range of applications.

[0142] Figure 6 This is a flowchart illustrating a method for determining the OAM beam transmission direction provided in an embodiment of this disclosure, applied at the receiving end, such as... Figure 6 As shown, the method for determining the OAM beam transmission direction may include the following steps:

[0143] Step 601: Receive multiple first OAM beams transmitted by the transmitting end.

[0144] In one embodiment of this disclosure, the receiving end can be any UE or any access network device (e.g., a base station). It should be noted that when the sending end is a UE, the receiving end can be a base station; conversely, when the sending end is a base station, the receiving end can be a UE.

[0145] Furthermore, the receiving end receives multiple first OAM beams transmitted in a fixed direction.

[0146] Step 602: Determine the target transmission beam from the multiple first OAM beams based on the detection results associated with the multiple first OAM beams.

[0147] In one embodiment of this disclosure, the receiver can select a target transmit beam from a plurality of first OAM beams based on RSRQ and / or RSRP. In another embodiment of this disclosure, the receiver can determine the OAM beam with the highest RSRQ and / or RSRP among the plurality of first OAM beams as the target transmit beam.

[0148] In one embodiment of this disclosure, the receiver can select a target transmit beam from a plurality of first OAM beams based on BER and / or BLER. In another embodiment of this disclosure, the receiver can determine the OAM beam with the smallest BER and / or smallest BLER among the plurality of first OAM beams as the target transmit beam.

[0149] Step 603: Send the beam information of the target transmission beam to the transmitting end so that the transmitting end can determine the OAM beam transmission direction based on the beam information.

[0150] Step 604: Determine multiple receiving directions.

[0151] In one embodiment of this disclosure, after the receiving end transmits beam information to the transmitting end, it can also determine multiple receiving directions for subsequent receiving of multiple second OAM transmit beams transmitted by the transmitting end according to the OAM beam transmission direction, thereby obtaining multiple second OAM receive beams. Based on the detection results associated with the multiple second OAM receive beams, a target receive beam is selected from the multiple second OAM receive beams, and the receiving direction corresponding to the target receive beam is used as the receiving direction of the OAM system.

[0152] The multiple receiving directions can be generated based on the receiving azimuth angle and / or the receiving depression angle. The receiving azimuth angle can be the angle between the projection of the second OAM receiving beam axis onto the UCA plane of the receiving end and the coordinate axis of the UCA of the receiving end. The receiving depression angle can be the angle between the second OAM receiving beam axis and the normal to the UCA plane of the receiving end.

[0153] The coordinate axis of the UCA at the receiving end can be any coordinate axis in the coordinate system established by the UCA at the receiving end. In one embodiment of this disclosure, the coordinate system established by the UCA at the receiving end can be a coordinate system with the origin of the UCA at the receiving end as the origin and the plane where the UCA at the receiving end is located as the XOY plane.

[0154] Step 605: Receive multiple second OAM transmit beams according to multiple receiving directions to obtain multiple second OAM receive beams.

[0155] It should be noted that, in one embodiment of this disclosure, during the process of the receiving end receiving multiple second OAM receiving beams, the transmitting end always transmits the second OAM transmitting beam in the OAM beam transmission direction.

[0156] Step 606: Determine the target receiving beam from the multiple second OAM receiving beams based on the detection results associated with the multiple second OAM beams.

[0157] In one embodiment of this disclosure, the receiving end can determine the beam with the best signal quality among the multiple second OAM receiving beams as the target receiving beam based on the signal quality of the multiple second OAM beams.

[0158] In one embodiment of this disclosure, the receiver can select a target receiving beam from a plurality of second OAM receiving beams based on RSRQ and / or RSRP. In another embodiment of this disclosure, the receiver can determine the beam with the highest RSRQ and / or RSRP among the plurality of second OAM receiving beams as the target receiving beam.

[0159] In one embodiment of this disclosure, the receiver can select a target receiving beam from a plurality of second OAM receiving beams based on BER and / or BLER. In another embodiment of this disclosure, the receiver can determine the beam with the smallest BER and / or smallest BLER among the plurality of second OAM receiving beams as the target receiving beam.

[0160] Step 607: Determine the receiving direction corresponding to the target receiving beam as the OAM beam receiving direction.

[0161] In one embodiment of this disclosure, after the OAM beam receiving direction is determined, the OAM beam receiving direction can be matched and stored with the OAM beam transmission direction. So that when the transmitter uses the OAM beam transmission direction to transmit a beam later, the transmitter can directly receive the beam in the OAM beam receiving direction according to the pre-stored matching relationship.

[0162] In one embodiment of this disclosure, when a target receiving beam is determined, the beam information of the target receiving beam can also be stored. The beam information of the target receiving beam may include, but is not limited to, the receiving azimuth angle and the receiving depression angle of the target receiving beam. Then, the beam information of the target receiving beam is matched and stored with the beam information of the target transmitting beam, so that when the transmitting end transmits a beam according to the beam information of the target receiving beam, the transmitting end can directly receive the beam with the beam information of the target receiving beam according to the pre-stored matching relationship.

[0163] In the method for determining the OAM beam transmission direction provided in this embodiment, the transmitting end determines multiple transmission directions, sequentially transmits a first OAM beam to the receiving end according to these multiple transmission directions, and receives the beam information transmitted by the receiving end. The OAM beam transmission direction is then determined based on this beam information. Therefore, in this embodiment, the effective OAM beam transmission direction can be determined solely based on the determined multiple transmission directions, without needing to obtain the deflection state of the transceiver array. This allows OAM communication to be achieved even when the deflection state of the transceiver array is unknown, avoiding the problem of "large errors and high costs due to obtaining the deflection state of the transceiver array." This effectively solves the OAM communication problem under misalignment conditions and provides better communication performance.

[0164] Furthermore, since the method provided in this embodiment is executed before each OAM beam transmission by the transmitting end, even when the transmitting end is in a mobile state, the valid OAM beam transmission direction is determined before the OAM beam is transmitted to achieve communication. Therefore, the method provided in this embodiment can also be applied to mobile communication scenarios, thus having a wide range of applications.

[0165] Figure 7 This is a flowchart illustrating a method for determining the OAM beam transmission direction provided in an embodiment of this disclosure, applied at the receiving end, such as... Figure 7 As shown, the method for determining the OAM beam transmission direction may include the following steps:

[0166] Step 701: Receive multiple first OAM beams transmitted by the transmitting end.

[0167] In one embodiment of this disclosure, the receiving end can be any UE or any access network device (e.g., a base station). It should be noted that when the sending end is a UE, the receiving end can be a base station; conversely, when the sending end is a base station, the receiving end can be a UE.

[0168] Furthermore, the receiving end receives multiple first OAM beams transmitted in a fixed direction.

[0169] Step 702: Determine the target transmission beam from the multiple first OAM beams based on the detection results associated with the multiple first OAM beams.

[0170] In one embodiment of this disclosure, the receiving end can determine the beam with the best signal quality among the multiple first OAM receiving beams as the target receiving beam based on the signal quality of the multiple first OAM beams.

[0171] In one embodiment of this disclosure, the receiver can select a target transmit beam from a plurality of first OAM beams based on RSRQ and / or RSRP. In another embodiment of this disclosure, the receiver can determine the OAM beam with the highest RSRQ and / or RSRP among the plurality of first OAM beams as the target transmit beam.

[0172] In one embodiment of this disclosure, the receiver can select a target transmit beam from a plurality of first OAM beams based on BER and / or BLER. In another embodiment of this disclosure, the receiver can determine the OAM beam with the smallest BER and / or smallest BLER among the plurality of first OAM beams as the target transmit beam.

[0173] Step 703: Send the beam information of the target transmission beam to the transmitting end so that the transmitting end can determine the OAM beam transmission direction based on the beam information.

[0174] In one embodiment of this disclosure, the beam information of the target transmitted beam may include, but is not limited to, the transmission azimuth angle and / or transmission depression angle of the target transmitted beam.

[0175] Step 704: Determine the receiving azimuth combination of the second OAM receiving beam.

[0176] The receiver azimuth angle combination includes multiple receiver azimuth angles, which are the angles between the projection of the second OAM receiver beam axis onto the UCA plane of the receiver and the coordinate axis of the UCA of the receiver.

[0177] The coordinate axes of the UCA at the receiving end are any axes in a coordinate system established on the UCA surface of the receiving end. The method of establishing the coordinate system may include: establishing a coordinate system with the origin of the UCA at the receiving end as the origin and the plane where the UCA at the receiving end is located as the XOY plane.

[0178] Furthermore, in one embodiment of this disclosure, the receiving azimuth combination can be:

[0179] Where M2 is an integer, and M2 is used to indicate the number of receiving azimuth angles in the receiving azimuth angle combination.

[0180] Step 705: Determine the receiving tilt angle combination of the second OAM receiving beam.

[0181] The receiver depression angle combination includes multiple receiver depression angles, which are the angles between the axis of the second OAM receiver beam and the normal to the UCA plane of the receiver.

[0182] In one embodiment of this disclosure, the receiving depression angle combination can be:

[0183] Where N2 is an integer, and N2 is used to indicate the number of receiving depression angles in the receiving depression angle combination.

[0184] Step 706: Determine multiple receiving directions based on the combination of receiving azimuth angles and / or the combination of receiving depression angles.

[0185] In one embodiment of this disclosure, the receiving end can determine a receiving direction based on any receiving azimuth angle in the receiving azimuth angle combination and / or any receiving depression angle in the receiving depression angle combination. Thus, multiple receiving directions can be generated by traversing all receiving azimuth angle combinations and / or all receiving depression angle combinations.

[0186] It should be noted that the larger the values ​​of M2 and N2, the more receiving azimuth angles are in the receiving azimuth angle combination and the more receiving depression angles are in the receiving depression angle combination. As a result, there are more receiving directions determined based on the receiving azimuth angle combination and / or receiving depression angle combination. This increases the probability that the final determined OAM beam receiving direction is the optimal receiving direction, thus improving the accuracy of determining the OAM beam receiving direction.

[0187] Step 707: Receive multiple second OAM transmit beams according to multiple receiving directions to obtain multiple second OAM receive beams.

[0188] In one embodiment of this disclosure, during the process of receiving multiple second OAM receive beams, the transmitter always transmits the second OAM transmit beams in accordance with the OAM beam transmission direction.

[0189] Step 708: The target receiving beam is determined from the multiple second OAM receiving beams based on the detection results associated with the multiple second OAM receiving beams.

[0190] In one embodiment of this disclosure, the receiving end can determine the beam with the best signal quality among the multiple second OAM receiving beams as the target receiving beam based on the signal quality of the multiple second OAM receiving beams.

[0191] In one embodiment of this disclosure, the receiver can select a target receiving beam from a plurality of second OAM receiving beams based on RSRQ and / or RSRP. In another embodiment of this disclosure, the receiver can determine the beam with the highest RSRQ and / or RSRP among the plurality of second OAM receiving beams as the target receiving beam.

[0192] In one embodiment of this disclosure, the receiver can select a target receiving beam from a plurality of second OAM receiving beams based on BER and / or BLER. In another embodiment of this disclosure, the receiver can determine the beam with the smallest BER and / or smallest BLER among the plurality of second OAM receiving beams as the target receiving beam.

[0193] Step 709: Determine the receiving direction corresponding to the target receiving beam as the OAM beam receiving direction.

[0194] In one embodiment of this disclosure, after the OAM beam receiving direction is determined, the OAM beam receiving direction can be matched and stored with the OAM beam transmission direction. So that when the transmitter uses the OAM beam transmission direction to transmit a beam later, the transmitter can directly receive the beam in the OAM beam receiving direction according to the pre-stored matching relationship.

[0195] In one embodiment of this disclosure, when a target receiving beam is determined, the beam information of the target receiving beam can also be stored. The beam information of the target receiving beam may include, but is not limited to, the receiving azimuth angle and the receiving depression angle of the target receiving beam. Then, the beam information of the target receiving beam is matched and stored with the beam information of the target transmitting beam, so that when the transmitting end transmits a beam according to the beam information of the target receiving beam, the transmitting end can directly receive the beam with the beam information of the target receiving beam according to the pre-stored matching relationship.

[0196] In the method for determining the OAM beam transmission direction provided in this embodiment, the transmitting end determines multiple transmission directions, sequentially transmits a first OAM beam to the receiving end according to these multiple transmission directions, and receives the beam information transmitted by the receiving end. The OAM beam transmission direction is then determined based on this beam information. Therefore, in this embodiment, the effective OAM beam transmission direction can be determined solely based on the determined multiple transmission directions, without needing to obtain the deflection state of the transceiver array. This allows OAM communication to be achieved even when the deflection state of the transceiver array is unknown, avoiding the problem of "large errors and high costs due to obtaining the deflection state of the transceiver array." This effectively solves the OAM communication problem under misalignment conditions and provides better communication performance.

[0197] Furthermore, since the method provided in this embodiment is executed before each OAM beam transmission by the transmitting end, even when the transmitting end is in a mobile state, the valid OAM beam transmission direction is determined before the OAM beam is transmitted to achieve communication. Therefore, the method provided in this embodiment can also be applied to mobile communication scenarios, thus having a wide range of applications.

[0198] Figure 8 This is a flowchart illustrating a method for determining the OAM beam transmission direction provided in an embodiment of this disclosure, applied at the receiving end, such as... Figure 8 As shown, the method for determining the OAM beam transmission direction may include the following steps:

[0199] Step 801: Receive multiple first OAM beams transmitted by the transmitting end.

[0200] In one embodiment of this disclosure, the receiving end can be any UE or any access network device (e.g., a base station). It should be noted that when the sending end is a UE, the receiving end can be a base station; conversely, when the sending end is a base station, the receiving end can be a UE.

[0201] In addition, the receiving end receives the first OAM beam transmitted in a fixed direction.

[0202] Step 802: Determine the target transmission beam from the multiple first OAM beams based on the detection results associated with the multiple first OAM beams.

[0203] In one embodiment of this disclosure, the receiving end can determine the beam with the best signal quality among the multiple first OAM receiving beams as the target receiving beam based on the signal quality of the multiple first OAM beams.

[0204] In one embodiment of this disclosure, the receiver can select a target transmit beam from a plurality of first OAM beams based on RSRQ and / or RSRP. In another embodiment of this disclosure, the receiver can determine the OAM beam with the highest RSRQ and / or RSRP among the plurality of first OAM beams as the target transmit beam.

[0205] In one embodiment of this disclosure, the receiver can select a target transmit beam from a plurality of first OAM beams based on BER and / or BLER. In another embodiment of this disclosure, the receiver can determine the OAM beam with the smallest BER and / or smallest BLER among the plurality of first OAM beams as the target transmit beam.

[0206] Step 803: Send the beam information of the target transmission beam to the transmitting end so that the transmitting end can determine the OAM beam transmission direction based on the beam information.

[0207] In one embodiment of this disclosure, the beam information of the target transmitted beam may include, but is not limited to, the transmission azimuth angle and / or transmission depression angle of the target transmitted beam.

[0208] Step 804: Determine the receiving azimuth combination when receiving the second OAM beam.

[0209] The receiver azimuth combination includes multiple receiver azimuth angles, which are the angles between the projection of the second OAM receiver beam axis onto the UCA plane of the receiver and the coordinate axes of the UCA at the receiver.

[0210] The coordinate axes of the UCA at the receiving end are any axes in a coordinate system established on the UCA surface of the receiving end. The method of establishing the coordinate system may include: establishing a coordinate system with the origin of the UCA at the receiving end as the origin and the plane where the UCA at the receiving end is located as the XOY plane.

[0211] Furthermore, in one embodiment of this disclosure, the receiving azimuth combination can be:

[0212] Where M2 is an integer, and M2 is used to indicate the number of receiving azimuth angles in the receiving azimuth angle combination.

[0213] Step 805: Determine the receiving tilt angle combination when receiving the second OAM receiving beam.

[0214] The receiver depression angle combination includes multiple receiver depression angles, which are the angles between the axis of the second OAM receiver beam and the normal to the UCA plane of the receiver.

[0215] In one embodiment of this disclosure, the receiving depression angle combination can be:

[0216] Where N2 is an integer, and N2 is used to indicate the number of receiving depression angles in the receiving depression angle combination.

[0217] Step 806: Determine the deflection of multiple receiving beams in the UCA of the receiver based on the combination of receiving azimuth angle and / or the combination of receiving depression angle.

[0218] In one embodiment of this disclosure, the receiving beam deflection amount corresponding to the UCA at the receiving end will also be different when the receiving azimuth angle and / or receiving depression angle are different. Specifically, the receiving beam deflection amount corresponding to the UCA at the receiving end includes the beam deflection amount corresponding to each antenna element in the UCA at the receiving end, and the beam deflection amount corresponding to each antenna element in the UCA at the receiving end is different.

[0219] Wherein, the receiving beam deflection W corresponding to the i-th antenna element 2(m,n) for:

[0220] Where λ is the wavelength of the second OAM receiving beam, and R t2 Let φ be the radius of the UCA at the receiving end. m2 To receive any azimuth angle from the azimuth angle combination, θ n2 For any of the depression angles in the receiving depression angle combination, j is a complex number and K is an integer. K is used to indicate the number of UCA antenna elements at the receiving end.

[0221] Therefore, by traversing all receiving azimuth angles in the receiving azimuth angle combination and / or all receiving depression angles in the receiving depression angle combination, the multiple receiving beam deflection values ​​corresponding to the UCA of the receiving end can be determined.

[0222] Step 807: Generate multiple receiving directions based on the multiple receiving beam deflection steers corresponding to the UCA of the receiver and the weights of each antenna element.

[0223] In one embodiment of this disclosure, each antenna element has a corresponding weight 'a':

[0224] Where l is the mode of OAM, φ is the angle between the projection of the antenna element onto the UCA plane of the receiver and the coordinate axis of the UCA of the receiver, and j is a complex number.

[0225] In one embodiment of this disclosure, a method for generating multiple receiving directions based on multiple receiving beam deflection directional amounts corresponding to the UCA of the receiver and the weight of each antenna array may include: generating a receiving direction by multiplying the receiving beam deflection directional amount corresponding to each antenna array included in the receiving beam deflection directional amount corresponding to the UCA of the receiver with the weight of each antenna array, thereby determining multiple receiving directions by traversing the multiple receiving beam deflection directional amounts corresponding to the UCA of the receiver.

[0226] Step 808: Receive multiple second OAM transmit beams according to multiple receiving directions to obtain multiple second OAM receive beams.

[0227] It should be noted that, in one embodiment of this disclosure, during the process of the receiving end receiving multiple second OAM receiving beams, the transmitting end always transmits the second OAM transmitting beam in the OAM beam transmission direction.

[0228] Step 809: The target receiving beam is determined from the multiple second OAM receiving beams based on the detection results associated with the multiple second OAM receiving beams.

[0229] In one embodiment of this disclosure, the receiving end can determine the beam with the best signal quality among the multiple second OAM receiving beams as the target receiving beam based on the signal quality of the multiple second OAM receiving beams.

[0230] In one embodiment of this disclosure, the receiver can select a target receiving beam from a plurality of second OAM receiving beams based on RSRQ and / or RSRP. In another embodiment of this disclosure, the receiver can determine the beam with the highest RSRQ and / or RSRP among the plurality of second OAM receiving beams as the target receiving beam.

[0231] In one embodiment of this disclosure, the receiver can select a target receiving beam from a plurality of second OAM receiving beams based on BER and / or BLER. In another embodiment of this disclosure, the receiver can determine the beam with the smallest BER and / or smallest BLER among the plurality of second OAM receiving beams as the target receiving beam.

[0232] Step 810: Determine the receiving direction corresponding to the target receiving beam as the OAM beam receiving direction.

[0233] In one embodiment of this disclosure, after the OAM beam receiving direction is determined, the OAM beam receiving direction can be matched and stored with the OAM beam transmission direction. So that when the transmitter uses the OAM beam transmission direction to transmit a beam later, the transmitter can directly receive the beam in the OAM beam receiving direction according to the pre-stored matching relationship.

[0234] In one embodiment of this disclosure, when a target receiving beam is determined, the beam information of the target receiving beam can also be stored. The beam information of the target receiving beam may include, but is not limited to, the receiving azimuth angle, receiving depression angle, and receiving beam deflection amount corresponding to the target receiving beam. Then, the beam information of the target receiving beam is matched and stored with the beam information of the target transmitting beam, so that when the transmitting end transmits a beam according to the beam information of the target receiving beam, the transmitting end can directly receive the beam with the beam information of the target receiving beam according to the pre-stored matching relationship.

[0235] In the method for determining the OAM beam transmission direction provided in this embodiment, the transmitting end determines multiple transmission directions, sequentially transmits a first OAM beam to the receiving end according to these multiple transmission directions, and receives the beam information transmitted by the receiving end. The OAM beam transmission direction is then determined based on this beam information. Therefore, in this embodiment, the effective OAM beam transmission direction can be determined solely based on the determined multiple transmission directions, without needing to obtain the deflection state of the transceiver array. This allows OAM communication to be achieved even when the deflection state of the transceiver array is unknown, avoiding the problem of "large errors and high costs due to obtaining the deflection state of the transceiver array." This effectively solves the OAM communication problem under misalignment conditions and provides better communication performance.

[0236] Furthermore, since the method provided in this embodiment is executed before each OAM beam transmission by the transmitting end, even when the transmitting end is in a mobile state, the valid OAM beam transmission direction is determined before the OAM beam is transmitted to achieve communication. Therefore, the method provided in this embodiment can also be applied to mobile communication scenarios, thus having a wide range of applications.

[0237] Figure 9 This is a flowchart illustrating a method for determining the OAM beam transmission direction provided in an embodiment of this disclosure, applied at the receiving end, such as... Figure 9 As shown, the method for determining the OAM beam transmission direction may include the following steps:

[0238] Step 901: Receive multiple first OAM beams transmitted by the transmitting end.

[0239] It should be noted that the receiving end in this embodiment of the disclosure can be any UE (User Equipment, terminal device) or any access network device (e.g., base station).

[0240] In addition, the receiving end receives the first OAM beam transmitted in a fixed direction.

[0241] Step 902: Determine the target transmission beam from the multiple first OAM beams based on the detection results associated with the multiple first OAM beams.

[0242] In one embodiment of this disclosure, the receiving end can determine the beam with the best signal quality among the multiple first OAM receiving beams as the target receiving beam based on the signal quality of the multiple first OAM beams.

[0243] In one embodiment of this disclosure, the receiver can select a target transmit beam from a plurality of first OAM beams based on RSRQ and / or RSRP. In another embodiment of this disclosure, the receiver can determine the OAM beam with the highest RSRQ and / or RSRP among the plurality of first OAM beams as the target transmit beam.

[0244] In one embodiment of this disclosure, the receiver can select a target transmit beam from a plurality of first OAM beams based on BER and / or BLER. In another embodiment of this disclosure, the receiver can determine the OAM beam with the smallest BER and / or smallest BLER among the plurality of first OAM beams as the target transmit beam.

[0245] Step 903: Send the beam information of the target transmission beam to the transmitting end so that the transmitting end can determine the OAM beam transmission direction based on the beam information.

[0246] In one embodiment of this disclosure, the beam information of the target transmitted beam may include, but is not limited to, the transmission azimuth angle and / or transmission depression angle of the target transmitted beam.

[0247] Step 904: Determine multiple receiving directions.

[0248] In one embodiment of this disclosure, after the receiving end transmits beam information to the transmitting end, it can also determine multiple receiving directions to receive the second OAM transmit beams transmitted by the transmitting end according to the OAM beam transmission direction, so as to obtain multiple second OAM receive beams, and determine an optimal receiving direction from the multiple receiving directions based on the received multiple second OAM receive beams as the receiving direction of the OAM system.

[0249] The multiple receiving directions can be generated based on the receiving azimuth angle and / or the receiving depression angle. The receiving azimuth angle can be the angle between the projection of the second OAM receiving beam axis onto the UCA plane of the receiving end and the coordinate axis of the UCA at the receiving end. The receiving depression angle can be the angle between the second OAM receiving beam axis and the normal to the UCA plane of the receiving end.

[0250] The coordinate axis of the UCA at the receiving end can be any coordinate axis in the coordinate system established by the UCA at the receiving end. In one embodiment of this disclosure, the coordinate system established by the UCA at the receiving end can be a coordinate system with the origin of the UCA at the receiving end as the origin and the plane where the UCA at the receiving end is located as the XOY plane.

[0251] Step 905: Receive the second OAM transmit beams according to multiple receiving directions to obtain the second OAM receive beams.

[0252] It should be noted that, in one embodiment of this disclosure, during the process of the receiving end receiving multiple second OAM receiving beams, the transmitting end always transmits the second OAM transmitting beam in the OAM beam transmission direction.

[0253] Step 906: Determine the target receiving beam from the multiple second OAM receiving beams based on the detection results associated with the multiple second OAM receiving beams.

[0254] In one embodiment of this disclosure, the receiving end can determine the beam with the best signal quality among the multiple second OAM receiving beams as the target receiving beam based on the signal quality of the multiple second OAM receiving beams.

[0255] In one embodiment of this disclosure, the receiver can select a target receiving beam from a plurality of second OAM receiving beams based on RSRQ and / or RSRP. In another embodiment of this disclosure, the receiver can determine the beam with the highest RSRQ and / or RSRP among the plurality of second OAM receiving beams as the target receiving beam.

[0256] In one embodiment of this disclosure, the receiver can select a target receiving beam from a plurality of second OAM receiving beams based on BER and / or BLER. In another embodiment of this disclosure, the receiver can determine the beam with the smallest BER and / or smallest BLER among the plurality of second OAM receiving beams as the target receiving beam.

[0257] Step 907: Determine the receiving direction corresponding to the target receiving beam as the OAM beam receiving direction.

[0258] Step 908: Receive the beam transmitted by the transmitting end according to the OAM beam transmission direction, based on the determined OAM beam receiving direction.

[0259] In the method for determining the OAM beam transmission direction provided in this embodiment, the transmitting end determines multiple transmission directions, sequentially transmits a first OAM beam to the receiving end according to these multiple transmission directions, and receives the beam information transmitted by the receiving end. The OAM beam transmission direction is then determined based on this beam information. Therefore, in this embodiment, the effective OAM beam transmission direction can be determined solely based on the determined multiple transmission directions, without needing to obtain the deflection state of the transceiver array. This allows OAM communication to be achieved even when the deflection state of the transceiver array is unknown, avoiding the problem of "large errors and high costs due to obtaining the deflection state of the transceiver array." This effectively solves the OAM communication problem under misalignment conditions and provides better communication performance.

[0260] Furthermore, since the method provided in this embodiment is executed before each OAM beam transmission by the transmitting end, even when the transmitting end is in a mobile state, the valid OAM beam transmission direction is determined before the OAM beam is transmitted to achieve communication. Therefore, the method provided in this embodiment can also be applied to mobile communication scenarios, thus having a wide range of applications.

[0261] Furthermore, in this embodiment of the present disclosure, when determining the OAM beam receiving direction, the receiving end only needs to determine multiple receiving directions and receive multiple second OAM transmit beams emitted by the transmitting end in these multiple receiving directions respectively, thereby obtaining multiple second OAM receive beams. The OAM beam receiving direction is then determined based on the signal quality of these multiple second OAM receive beams. Therefore, in this embodiment of the present disclosure, an effective OAM beam receiving direction can be determined only based on the determined multiple receiving directions, without needing to obtain the deflection state of the transceiver array. This allows OAM communication to be achieved even when the deflection state of the transceiver array is unknown, avoiding the problem of "large errors and high costs due to obtaining the deflection state of the transceiver array." This effectively solves the OAM communication problem under misalignment conditions and provides better communication performance.

[0262] Figure 10 This is a schematic diagram of the structure of an OAM beam transmission direction determination device provided in one embodiment of the present disclosure, as shown below. Figure 10 As shown, the device 1000 may include:

[0263] Module 1001 is used to determine multiple launch directions;

[0264] Transmitting module 1002 is used to transmit multiple first OAM beams to the receiving end according to the multiple transmission directions;

[0265] The receiving module 1003 is used to receive the beam information sent by the receiving end and determine the OAM beam transmission direction based on the beam information.

[0266] In the method for determining the OAM beam transmission direction provided in this embodiment, the transmitting end determines multiple transmission directions, transmits a first OAM beam to the receiving end according to these multiple transmission directions, and receives the beam information transmitted by the receiving end. The OAM beam transmission direction is then determined based on this beam information. Therefore, in this embodiment, the effective OAM beam transmission direction can be determined solely based on the determined multiple transmission directions, without needing to obtain the deflection state of the transceiver array. This allows OAM communication to be achieved even when the deflection state of the transceiver array is unknown, avoiding the problem of "large errors and high costs due to obtaining the deflection state of the transceiver array." This effectively solves the OAM communication problem under misalignment conditions and provides better communication performance.

[0267] Furthermore, since the method provided in this embodiment is executed before each OAM beam transmission by the transmitting end, even when the transmitting end is in a mobile state, the valid OAM beam transmission direction is determined before the OAM beam is transmitted to achieve communication. Therefore, the method provided in this embodiment can also be applied to mobile communication scenarios, thus having a wide range of applications.

[0268] In one embodiment of this disclosure, the determining module 1001 is further configured to:

[0269] Determine the combination of transmission azimuth angles when transmitting the first OAM beam, wherein the combination of transmission azimuth angles includes multiple transmission azimuth angles, and the transmission azimuth angle is the angle between the projection of the first OAM beam axis onto the UCA plane of the transmitting end and the coordinate axis of the UCA of the transmitting end.

[0270] Determine the combination of transmit depression angles when transmitting the first OAM beam, wherein the combination of transmit depression angles includes multiple transmit depression angles, and the transmit depression angle is the angle between the axis of the first OAM beam and the normal of the UCA plane of the transmitting end.

[0271] The plurality of launch directions are generated based on the combination of launch azimuth angle and / or launch depression angle.

[0272] Furthermore, in another embodiment of this disclosure, the determining module 1001 is also used to determine the combination of transmission azimuth angles using the following formula:

[0273] The combination of launch azimuth angles is:

[0274] Where M1 is an integer, and M1 is used to indicate the number of transmission azimuth angles in the transmission azimuth angle combination.

[0275] Furthermore, in another embodiment of this disclosure, the determining module 1001 is further configured to determine the launch depression angle combination using the following formula, including:

[0276] The launch depression angle combination is as follows:

[0277] Where N1 is an integer, and N1 is used to indicate the number of launch depression angles in the launch depression angle combination.

[0278] Furthermore, in another embodiment of this disclosure, the determining module 1001 is also used for:

[0279] The transmit beam deflection amounts corresponding to the UCA at the transmitting end are determined based on the transmit azimuth angle combination and / or transmit depression angle combination. The transmit beam deflection amounts corresponding to the UCA at the transmitting end include the transmit beam deflection amounts corresponding to each antenna element of the UCA at the transmitting end.

[0280] The multiple transmission directions are generated based on the multiple transmit beam deflection yaws corresponding to the UCA at the transmitting end and the weights of each antenna array of the UCA at the transmitting end.

[0281] Furthermore, in another embodiment of this disclosure, the determining module 1001 is also used for:

[0282] The transmit beam deflection amount corresponding to the UCA of the transmitting end is determined based on any transmit azimuth angle in the transmit azimuth angle combination and / or any transmit depression angle in the transmit depression angle combination.

[0283] Iterate through the transmission azimuth angles in the transmission azimuth angle combinations and / or the transmission depression angles in the transmission depression angle combinations to generate the multiple transmission beam deflection values ​​corresponding to the UCA of the transmitter.

[0284] Furthermore, in another embodiment of this disclosure, the determining module 1001 is further configured to determine the transmit beam deflection amount through the following steps:

[0285] The transmit beam deflection W corresponding to the i-th antenna array 1(m,n) for:

[0286] Where λ is the wavelength of the first OAM beam, and R t1 Let φ be the radius of the UCA at the transmitting end. m1 For any combination of launch azimuth angles, θ n1 Let j be any transmit depression angle in the transmit depression angle combination, j be a complex number, and K be an integer. K is used to indicate the number of UCA antenna elements at the transmitting end.

[0287] Furthermore, in another embodiment of this disclosure, the weight 'a' of each antenna element is:

[0288] Where l is the mode of OAM, φ is the angle between the projection of the antenna element onto the UCA plane of the transmitting end and the coordinate axis of the UCA of the transmitting end, and j is a complex number.

[0289] Furthermore, in another embodiment of this disclosure, the determining module 1001 is also used for:

[0290] A transmission direction is determined by the product of the transmit beam deflection of each antenna element of the transmitter's UCA and the weight of each antenna element, which is included in the transmit beam deflection of the transmitter's UCA.

[0291] Multiple transmit beam deflection values ​​corresponding to the UCA at the transmitter are traversed to determine multiple transmit directions.

[0292] Furthermore, in another embodiment of this disclosure, the beam information includes the transmission azimuth angle and / or the transmission depression angle.

[0293] Furthermore, in another embodiment of this disclosure, the OAM beam transmission direction determination device is also used to: after receiving the transmit beam information sent by the receiving end, transmit a plurality of second OAM transmit beams according to the OAM beam transmission direction.

[0294] Figure 11 This is a schematic diagram of the structure of an OAM beam transmission direction determination device provided in one embodiment of the present disclosure, as shown below. Figure 11 As shown, the device 1100 may include:

[0295] Receiver module 1101 is used to receive multiple first OAM beams transmitted by the transmitter;

[0296] The determination module 1102 is used to determine the target transmission beam from the plurality of first OAM beams based on the detection results associated with the plurality of first OAM beams;

[0297] The transmitting module 1103 is used to transmit the beam information of the target transmission beam to the transmitting end, so that the transmitting end can determine the OAM beam transmission direction based on the beam information.

[0298] In the method for determining the OAM beam transmission direction provided in this embodiment, the transmitting end determines multiple transmission directions, sequentially transmits a first OAM beam to the receiving end according to these multiple transmission directions, and receives the beam information transmitted by the receiving end. The OAM beam transmission direction is then determined based on this beam information. Therefore, in this embodiment, the effective OAM beam transmission direction can be determined solely based on the determined multiple transmission directions, without needing to obtain the deflection state of the transceiver array. This allows OAM communication to be achieved even when the deflection state of the transceiver array is unknown, avoiding the problem of "large errors and high costs due to obtaining the deflection state of the transceiver array." This effectively solves the OAM communication problem under misalignment conditions and provides better communication performance.

[0299] Furthermore, since the method provided in this embodiment is executed before each OAM beam transmission by the transmitting end, even when the transmitting end is in a mobile state, the valid OAM beam transmission direction is determined before the OAM beam is transmitted to achieve communication. Therefore, the method provided in this embodiment can also be applied to mobile communication scenarios, thus having a wide range of applications.

[0300] In one embodiment of this disclosure, the determining module 1102 is further configured to:

[0301] The target transmit beam is selected from a plurality of first OAM beams based on the reference signal received power RSRP and / or the reference signal received quality RSRQ.

[0302] Furthermore, in one embodiment of this disclosure, the determining module 1102 is also used for:

[0303] The target transmit beam is selected from multiple first OAM beams based on the bit error rate (BER) and / or block error rate (BLER).

[0304] Furthermore, in another embodiment of this disclosure, the OAM beam transmission direction determination device is also used for:

[0305] Multiple receiving directions can be determined;

[0306] Multiple second OAM transmit beams transmitted by the transmitting end are received in multiple receiving directions to obtain multiple second OAM receive beams;

[0307] The target receiving beam is determined from multiple second OAM receiving beams based on detection results associated with multiple second OAM beams;

[0308] The receiving direction corresponding to the target receiving beam is determined as the OAM beam receiving direction.

[0309] Furthermore, in another embodiment of this disclosure, the OAM beam transmission direction determination device is also used for:

[0310] Determine the receiving azimuth angle combination of the second OAM receiving beam, wherein the receiving azimuth angle combination includes multiple receiving azimuth angles, and the receiving azimuth angle is the angle between the projection of the axis of the second OAM receiving beam onto the UCA plane of the receiving end and the coordinate axis of the UCA of the receiving end.

[0311] Determine the receiving depression angle combination of the second OAM receiving beam, wherein the receiving depression angle combination includes multiple receiving depression angles, and the receiving depression angle is the angle between the axis of the second OAM receiving beam and the normal of the UCA plane of the receiving end;

[0312] The method further includes:

[0313] Multiple receiving directions are determined based on the combination of receiving azimuth angle and / or receiving depression angle.

[0314] Furthermore, in one embodiment of this disclosure, the device determines the receiving azimuth combination using the following formula:

[0315] The receiving azimuth combination is:

[0316] Where M2 is an integer, and M2 is used to indicate the number of receiving azimuth angles in the receiving azimuth angle combination.

[0317] Furthermore, in one embodiment of this disclosure, the device determines the receiving depression angle combination using the following formula:

[0318] The receiving angle combination is:

[0319] Where N2 is an integer, and N2 is used to indicate the number of receiving depression angles in the receiving depression angle combination.

[0320] Furthermore, in another embodiment of this disclosure, the OAM beam transmission direction determination device is also used for:

[0321] The multiple receiving beam deflection amounts corresponding to the UCA of the receiving end are determined based on the receiving azimuth angle combination and / or the receiving depression angle combination, wherein the receiving beam deflection amount corresponding to the UCA of the receiving end includes the receiving beam deflection amount corresponding to each antenna element of the UCA of the receiving end.

[0322] Multiple receiving directions are determined based on the multiple receiving beam deflection yaws corresponding to the UCA of the receiver and the weights of each antenna element.

[0323] Furthermore, in one embodiment of this disclosure, the apparatus is also used for:

[0324] The receiving beam deflection amount corresponding to the UCA of the receiving end is determined based on any azimuth angle in the receiving azimuth angle combination and / or any depression angle in the receiving depression angle combination.

[0325] The azimuth angles in the receiving azimuth angle combination and / or the depression angles in the receiving depression angle combination are traversed to determine the multiple receiving beam deflection amounts corresponding to each antenna element.

[0326] Furthermore, in one embodiment of this disclosure, the apparatus is used to determine the received beam deflection amount through the following steps:

[0327] The receiving beam deflection W corresponding to the i-th antenna array 2(m,n) for:

[0328] Where λ is the wavelength of the second OAM receiving beam, and R t2 Let φ be the radius of the UCA at the receiving end. m2 To receive any azimuth angle from the azimuth angle combination, θ n2 For any of the depression angles in the receiving depression angle combination, j is a complex number and K is an integer. K is used to indicate the number of UCA antenna elements at the receiving end.

[0329] Furthermore, in one embodiment of this disclosure, the weight 'a' of each antenna element is:

[0330] Where l is the mode of OAM, φ is the angle between the projection of the antenna element onto the UCA plane of the receiver and the coordinate axis of the UCA of the receiver, and j is a complex number.

[0331] Furthermore, in one embodiment of this disclosure, the apparatus is also used for:

[0332] A receiving direction is determined by multiplying the receiving beam deflection of each antenna element of the receiver's UCA by the weight of each antenna element, which is included in the transmitting beam deflection of the receiver's UCA.

[0333] Multiple receiving beam deflection values ​​corresponding to the UCA of the receiver are traversed to determine multiple receiving directions.

[0334] Furthermore, in one embodiment of this disclosure, the OAM beam transmission direction determination device is also used for:

[0335] The beam transmitted by the receiving end according to the OAM beam transmission direction is received according to the OAM beam receiving direction.

[0336] To implement the above embodiments, this disclosure also proposes a computer storage medium.

[0337] The computer storage medium provided in this embodiment stores an executable program; after the executable program is executed by a processor, it can achieve the following: Figures 1 to 4 or Figures 5 to 9 Method for determining the transmission direction of any OAM beam shown.

[0338] To achieve the above embodiments, this disclosure also proposes a computer program product, including a computer program, which, when executed by a processor, implements the following: Figures 1 to 4 or Figures 5 to 9 Method for determining the transmission direction of any OAM beam shown.

[0339] Furthermore, in order to implement the above embodiments, this disclosure also proposes a computer program that, when executed by a processor, performs the following: Figures 1 to 4 or Figures 5 to 9 Method for determining the transmission direction of any OAM beam shown.

[0340] Figure 12 This is a block diagram of a terminal device UE1200 provided in one embodiment of this disclosure. For example, UE1200 may be a mobile phone, computer, digital broadcasting terminal device, messaging transceiver, game console, tablet device, medical device, fitness device, personal digital assistant, etc.

[0341] Reference Figure 12 UE1200 may include at least one of the following components: processing component 1202, memory 1204, power supply component 1206, multimedia component 1208, audio component 1210, input / output (I / O) interface 1212, sensor component 1214, and communication component 1216.

[0342] Processing component 1202 typically controls the overall operation of UE 1200, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 1202 may include at least one processor 1220 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 1202 may include at least one module to facilitate interaction between processing component 1202 and other components. For example, processing component 1202 may include a multimedia module to facilitate interaction between multimedia component 1208 and processing component 1202.

[0343] Memory 1204 is configured to store various types of data to support operation on UE 1200. Examples of this data include instructions for any application or method operating on UE 1200, contact data, phonebook data, messages, pictures, videos, etc. Memory 1204 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0344] Power supply component 1206 provides power to various components of UE1200. Power supply component 1206 may include a power management system, at least one power supply, and other components associated with generating, managing, and distributing power to UE1200.

[0345] The multimedia component 1208 includes a screen that provides an output interface between the UE 1200 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes at least one touch sensor to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or swipe action but also detect the wake-up time and pressure associated with the touch or swipe operation. In some embodiments, the multimedia component 1208 includes a front-facing camera and / or a rear-facing camera. When the UE 1200 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0346] Audio component 1210 is configured to output and / or input audio signals. For example, audio component 1210 includes a microphone (MIC) configured to receive external audio signals when UE 1200 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1204 or transmitted via communication component 1216. In some embodiments, audio component 1210 also includes a speaker for outputting audio signals.

[0347] I / O interface 1212 provides an interface between processing component 1202 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0348] Sensor assembly 1214 includes at least one sensor for providing status assessment of various aspects of UE 1200. For example, sensor assembly 1214 can detect the on / off state of device 1200, the relative positioning of components, such as the display and keypad of UE 1200, changes in position of UE 1200 or one of its components, the presence or absence of user contact with UE 1200, orientation or acceleration / deceleration of UE 1200, and temperature changes of UE 1200. Sensor assembly 1214 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1214 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 1214 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0349] Communication component 1216 is configured to facilitate wired or wireless communication between UE 1200 and other devices. UE 1200 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 1216 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1216 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0350] In an exemplary embodiment, UE1200 may be implemented by at least one application-specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field-programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic component to perform the above method.

[0351] Figure 13 This is a schematic diagram of the structure of a base station 1300 provided in an embodiment of this application. For example, the base station 1300 can be provided as a base station. (Refer to...) Figure 13The base station 1300 includes a processing component 1322, which further includes at least one processor, and memory resources represented by a memory 1332 for storing instructions executable by the processing component 1322, such as application programs. The application programs stored in the memory 1332 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 1322 is configured to execute instructions to perform any of the methods described above applied to the base station, for example, such as... Figure 1 The method shown.

[0352] Base station 1300 may also include a power supply component 1326 configured to perform power management of base station 1300, a wired or wireless network interface 1350 configured to connect base station 1300 to a network, and an input / output (I / O) interface 1358. Base station 1300 can operate on an operating system stored in memory 1332, such as Windows Server™, MacOS X™, Unix™, Linux™, FreeBSD™, or similar.

[0353] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0354] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications, substitutions, and combinations can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A method for determining the transmission direction of an orbital angular momentum (OAM) beam, characterized in that, Applied to the sending end, including: Multiple launch directions can be determined; Multiple first OAM beams are transmitted to the receiving end in the multiple transmission directions; Receive the beam information sent by the receiving end, and determine the OAM beam transmission direction based on the beam information; The determination of multiple launch directions includes: Determine the combination of transmission azimuth angles when transmitting the first OAM beam, wherein the combination of transmission azimuth angles includes multiple transmission azimuth angles, and the transmission azimuth angle is the angle between the projection of the axis of the first OAM beam onto the uniform circular phased antenna array (UCA) plane at the transmitting end and the coordinate axis of the UCA at the transmitting end; Determine the combination of transmit depression angles when transmitting the first OAM beam, wherein the combination of transmit depression angles includes multiple transmit depression angles, and the transmit depression angle is the angle between the axis of the first OAM beam and the normal to the UCA plane of the transmitting end; The transmit beam deflection amounts corresponding to the UCA of the transmitting end are determined based on the transmit azimuth angle combination and the transmit depression angle combination, wherein the transmit beam deflection amounts corresponding to the UCA of the transmitting end include the transmit beam deflection amounts corresponding to each antenna element of the UCA of the transmitting end. The plurality of transmission directions are generated based on the multiple transmit beam deflection yaws corresponding to the UCA of the transmitting end and the weights of each antenna element of the UCA of the transmitting end.

2. The method as described in claim 1, characterized in that, The combination of emission azimuth angles is determined by the following formula: The combination of the emission azimuth angles is: { }; Wherein, M1 is an integer, and M1 is used to indicate the number of transmission azimuth angles in the transmission azimuth angle combination.

3. The method as described in claim 1, characterized in that, The launch depression angle combination is determined by the following formula, including: The launch depression angle combination is: { }; Wherein, N1 is an integer, and N1 is used to indicate the number of launch depression angles in the launch depression angle combination.

4. The method as described in claim 3, characterized in that, The step of determining the multiple transmit beam deflection values ​​corresponding to the UCA of the transmitting end based on the transmit azimuth angle combination and the transmit depression angle combination includes: The transmit beam deflection amount corresponding to the UCA of the transmitting end is determined based on any transmit azimuth angle in the transmit azimuth angle combination and any transmit depression angle in the transmit depression angle combination. The transmission azimuth angle in the transmission azimuth angle combination and the transmission depression angle in the transmission depression angle combination are traversed to generate the multiple transmission beam deflection values ​​corresponding to the UCA of the transmitting end.

5. The method as described in claim 4, characterized in that, The transmitted beam deflection angle is determined through the following steps: The transmit beam deflection amount corresponding to the i-th antenna array for: ; Where λ is the wavelength of the first OAM beam, R t1 φ is the radius of the UCA of the transmitting end. m1 Let θ be any of the combined launch azimuth angles. n1 Let j be any of the transmit depression angles in the transmit depression angle combination, j be a complex number, and K be an integer. K is used to indicate the number of UCA antenna elements at the transmitting end.

6. The method as described in claim 1, characterized in that, The weight 'a' for each antenna array is: ; Where l is the mode of OAM, φ is the angle between the projection of the antenna array onto the UCA plane of the transmitting end and the coordinate axis of the UCA of the transmitting end, and j is a complex number.

7. The method as described in claim 1, characterized in that, The step of generating the multiple transmission directions based on the multiple transmit beam deflection directional values ​​corresponding to the UCA of the transmitting end and the weights of each antenna element of the UCA of the transmitting end includes: A transmission direction is determined by the product of the transmit beam deflection of each antenna element of the UCA of the transmitting end and the weight of each antenna element, which is included in the transmit beam deflection of the UCA of the transmitting end. Multiple transmission directions are determined by iterating through the multiple transmit beam deflection values ​​corresponding to the UCA of the transmitting end.

8. The method as described in claim 1, characterized in that, The beam information includes the transmission azimuth angle and / or transmission depression angle.

9. The method as described in claim 1, characterized in that, After receiving the transmit beam information sent by the receiving end, the method further includes: Multiple second OAM transmission beams are transmitted in accordance with the OAM beam transmission direction.

10. A method for determining the transmission direction of an OAM beam, characterized in that, Applied to the receiving end, including: Receive multiple first OAM beams transmitted by the transmitting end; The target transmission beam is determined from the plurality of first OAM beams based on the detection results associated with the plurality of first OAM beams; The beam information of the target transmission beam is sent to the transmitting end so that the transmitting end can determine the OAM beam transmission direction based on the beam information; The method further includes: Multiple receiving directions can be determined; Multiple second OAM transmit beams transmitted by the transmitting end are received in the multiple receiving directions to obtain multiple second OAM receive beams; The target receiving beam is determined from the plurality of second OAM receiving beams based on the detection results associated with the plurality of second OAM receiving beams; The receiving direction corresponding to the target receiving beam is determined as the OAM beam receiving direction; The determination of multiple receiving directions includes: The following steps are taken: First, determine the receiving azimuth combination of the second OAM receiving beam, wherein the receiving azimuth combination includes multiple receiving azimuth angles, each being the angle between the projection of the second OAM receiving beam axis onto the UCA plane of the receiving end and the coordinate axis of the UCA of the receiving end. Second, determine the receiving depression angle combination of the second OAM receiving beam, wherein the receiving depression angle combination includes multiple receiving depression angles, each being the angle between the axis of the second OAM receiving beam and the normal to the UCA plane of the receiving end. Third, determine multiple receiving beam deflection steers corresponding to the UCA of the receiving end based on the receiving azimuth angle combination and the receiving depression angle combination, wherein the receiving beam deflection steers corresponding to the UCA of the receiving end includes the receiving beam deflection steers corresponding to each antenna element of the UCA of the receiving end. Fourth, determine multiple receiving directions based on the multiple receiving beam deflection steers corresponding to the UCA of the receiving end and the weight of each antenna element.

11. The method as described in claim 10, characterized in that, The determination of the target transmission beam from multiple first OAM beams includes: The target transmit beam is selected from the plurality of first OAM beams based on the reference signal received power RSRP and / or the reference signal received quality RSRQ.

12. The method as described in claim 10, characterized in that, The target transmission beam is determined from multiple first OAM beams, including: The target transmit beam is selected from the plurality of first OAM beams based on the bit error rate (BER) and / or block error rate (BLER).

13. The method as described in claim 10, characterized in that, The receiving azimuth combination is determined by the following formula: The receiving azimuth combination is: { }; Where M2 is an integer, and M2 is used to indicate the number of receiving azimuth angles in the receiving azimuth angle combination.

14. The method as described in claim 10, characterized in that, The receiver depression angle combination is determined using the following formula: The receiving depression angle combination is: { }; Wherein, N2 is an integer, and N2 is used to indicate the number of receiving depression angles in the receiving depression angle combination.

15. The method as described in claim 10, characterized in that, Based on the receiving azimuth combination and the receiving depression combination, multiple receiving beam deflection values ​​corresponding to the UCA of the receiving end are determined, including: The receiving beam deflection amount corresponding to the UCA of the receiving end is determined based on any azimuth angle in the receiving azimuth angle combination and any depression angle in the receiving depression angle combination. By iterating through the azimuth angles in the receiving azimuth angle combination and the depression angles in the receiving depression angle combination, multiple receiving beam deflection amounts corresponding to each antenna element are determined.

16. The method as described in claim 15, characterized in that, The received beam deflection amount is determined through the following steps: The receiving beam deflection amount corresponding to the i-th antenna array for: ; Where λ is the wavelength of the second OAM receiving beam, and R t2 φ is the radius of the UCA of the receiving end. m2 For any one of the receiving azimuth angle combinations, θ n2 Let j be any one of the depression angles in the receiving depression angle combination, j be a complex number, and K be an integer. K is used to indicate the number of UCA antenna elements at the receiving end.

17. The method as described in claim 10, characterized in that, The weight 'a' for each antenna array is: ; Where l is the mode of OAM, φ is the angle between the projection of the antenna array onto the UCA plane of the receiver and the coordinate axis of the UCA of the receiver, and j is a complex number.

18. The method as described in claim 10, characterized in that, The determination of multiple receiving directions based on the multiple receiving beam deflection yaws corresponding to the UCA of the receiver and the weights of each antenna element includes: A receiving direction is determined by multiplying the receiving beam deflection of each antenna element of the receiver's UCA by the weight of each antenna element, which is included in the transmitting beam deflection of the receiver's UCA. Multiple receiving beam deflection values ​​corresponding to the UCA of the receiver are traversed to determine multiple receiving directions.

19. The method as described in claim 10, characterized in that, The method further includes: The beam transmitted by the receiving end according to the OAM beam transmission direction is received according to the OAM beam receiving direction.

20. A device for determining the direction of OAM beam transmission, characterized in that, include: The determination module is used to determine multiple launch directions; The transmitting module is used to transmit multiple first OAM beams to the receiving end according to the multiple transmitting directions; The receiving module is used to receive the beam information sent by the receiving end and determine the OAM beam transmission direction based on the beam information; The module is specifically used for: Determine the combination of transmission azimuth angles when transmitting the first OAM beam, wherein the combination of transmission azimuth angles includes multiple transmission azimuth angles, and the transmission azimuth angle is the angle between the projection of the axis of the first OAM beam onto the uniform circular phased antenna array (UCA) plane at the transmitting end and the coordinate axis of the UCA at the transmitting end; Determine the combination of transmit depression angles when transmitting the first OAM beam, wherein the combination of transmit depression angles includes multiple transmit depression angles, and the transmit depression angle is the angle between the axis of the first OAM beam and the normal to the UCA plane of the transmitting end; The transmit beam deflection amounts corresponding to the UCA of the transmitting end are determined based on the transmit azimuth angle combination and the transmit depression angle combination, wherein the transmit beam deflection amounts corresponding to the UCA of the transmitting end include the transmit beam deflection amounts corresponding to each antenna element of the UCA of the transmitting end. The plurality of transmission directions are generated based on the multiple transmit beam deflection yaws corresponding to the UCA of the transmitting end and the weights of each antenna element of the UCA of the transmitting end.

21. A device for determining the direction of OAM beam transmission, characterized in that, include: The receiving module is used to receive multiple first OAM beams transmitted by the transmitting end; A determination module is configured to determine the target transmission beam from the plurality of first OAM beams based on detection results associated with the plurality of first OAM beams; The transmitting module is used to transmit the beam information of the target transmission beam to the transmitting end, so that the transmitting end can determine the OAM beam transmission direction based on the beam information; The device is also used to: determine multiple receiving directions; Multiple second OAM transmit beams transmitted by the transmitting end are received in the multiple receiving directions to obtain multiple second OAM receive beams; The target receiving beam is determined from the plurality of second OAM receiving beams based on the detection results associated with the plurality of second OAM receiving beams; The receiving direction corresponding to the target receiving beam is determined as the OAM beam receiving direction; The determination of multiple receiving directions includes: The following steps are taken: First, determine the receiving azimuth combination of the second OAM receiving beam, wherein the receiving azimuth combination includes multiple receiving azimuth angles, each being the angle between the projection of the second OAM receiving beam axis onto the UCA plane of the receiving end and the coordinate axis of the UCA of the receiving end. Second, determine the receiving depression angle combination of the second OAM receiving beam, wherein the receiving depression angle combination includes multiple receiving depression angles, each being the angle between the axis of the second OAM receiving beam and the normal to the UCA plane of the receiving end. Third, determine multiple receiving beam deflection steers corresponding to the UCA of the receiving end based on the receiving azimuth angle combination and the receiving depression angle combination, wherein the receiving beam deflection steers corresponding to the UCA of the receiving end includes the receiving beam deflection steers corresponding to each antenna element of the UCA of the receiving end. Fourth, determine multiple receiving directions based on the multiple receiving beam deflection steers corresponding to the UCA of the receiving end and the weight of each antenna element.

22. A terminal device, characterized in that, include: transceiver; Memory; A processor, connected to the transceiver and the memory respectively, is configured to control the wireless signal transmission and reception of the transceiver by executing computer-executable instructions on the memory, and is capable of implementing the method according to any one of claims 1 to 9 or 10 to 19.

23. An access network device, characterized in that, include: transceiver; Memory; A processor, connected to the transceiver and the memory respectively, is configured to control the wireless signal transmission and reception of the transceiver by executing computer-executable instructions on the memory, and is capable of implementing the method according to any one of claims 1 to 9 or 10 to 19.

24. A computer storage medium, wherein, The computer storage medium stores computer-executable instructions; when executed by a processor, the computer-executable instructions can implement the method described in any one of claims 1 to 9 or 10 to 19.

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