CN112994832A

CN112994832A - Parameter determination method and device, related equipment and storage medium

Info

Publication number: CN112994832A
Application number: CN201911285156.8A
Authority: CN
Inventors: 金婧; 黄宇红; 刘光毅; 董静; 王启星
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2021-06-18
Anticipated expiration: 2039-12-13
Also published as: CN112994832B

Abstract

The invention discloses a parameter determination method, a parameter determination device, related equipment and a storage medium. The method comprises the following steps: determining expected modal number of vortex electromagnetic waves based on channel related parameters between the receiving end equipment and the sending end equipment; the vortex electromagnetic waves are electromagnetic waves carrying Orbital Angular Momentum (OAM); the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment; sending the expected modal number to the sending end equipment; and/or determining an expected modal value of the vortex electromagnetic wave based on channel related parameters between the receiving end equipment and the sending end equipment; the expected modal value represents a modal value of data to be sent borne by expected sending end equipment; and sending the expected modal value to the sending terminal equipment.

Description

Parameter determination method and device, related equipment and storage medium

Technical Field

The present invention relates to the field of wireless communications, and in particular, to a parameter determining method, apparatus, related device, and storage medium.

Background

In a digital communication system, in order to improve the utilization rate of spectrum resources, electromagnetic waves carrying Orbital Angular Momentum (OAM), also called vortex electromagnetic waves, may be used to modulate data to be transmitted. The vortex electromagnetic wave can have a plurality of modes, and vortex electromagnetic waves of different modes are orthogonal to each other, so that a plurality of independent channels can be provided. In this way, the transmitting end device can transmit data to the receiving end device using a plurality of independent channels.

In the above manner, the sending end device sends data to the receiving end device by using the vortex electromagnetic waves with multiple modes, and because the vortex electromagnetic waves with multiple modes may not be orthogonal to each other all the time, the decoding complexity of the receiving end device is greatly improved, and the system capacity is reduced.

Disclosure of Invention

In view of this, embodiments of the present invention provide a parameter determining method, an apparatus, a related device and a storage medium.

The technical scheme of the embodiment of the invention is realized as follows:

the embodiment of the invention provides a parameter determination method, which comprises the following steps:

determining expected modal number of vortex electromagnetic waves based on channel related parameters between the receiving end equipment and the sending end equipment; the vortex electromagnetic waves are electromagnetic waves carrying OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment; sending the expected modal number to the sending end equipment;

and/or the presence of a gas in the gas,

determining an expected modal value of the vortex electromagnetic wave based on the channel related parameters between the receiving end equipment and the sending end equipment; the expected modal value represents a modal value of data to be sent borne by expected sending end equipment; and sending the expected modal value to the sending terminal equipment.

In the foregoing solution, the determining an expected modal number of the vortex electromagnetic wave based on the channel related parameter between the receiving end device and the sending end device includes:

receiving a reference signal sent by sending end equipment; the reference signal is transmitted by the transmitting terminal equipment by using plane waves; the reference signal carries pilot frequency information for channel estimation;

performing channel estimation by using the reference signal to obtain channel related parameters;

and determining the expected modal number of the vortex electromagnetic wave based on the channel related parameters.

In the above scheme, the performing channel estimation by using the reference signal to obtain a channel-related parameter includes:

determining the quality of a channel using the reference signal;

the determined quality of the channel is taken as the channel-related parameter.

obtaining an equivalent channel matrix by using the reference signal;

performing eigenvalue decomposition on the equivalent channel matrix to obtain the rank of a channel;

and taking the obtained rank of the channel as the channel related parameter.

In the foregoing solution, the determining an expected modal value of a vortex electromagnetic wave based on a channel related parameter between the receiving end device and the sending end device includes:

determining expected modal number of vortex electromagnetic waves based on channel related parameters between the receiving end equipment and the sending end equipment;

for each modal value in the modal value set, summing a first channel parameter value corresponding to the corresponding modal value with a preset channel parameter value to obtain at least one numerical value; excluding from the set of modal values the modal value corresponding to the largest value of the at least one numerical value; taking the excluded modality value as the desired modality value;

and so on until the determined number of desired modality values is the same as the desired modality number.

In the foregoing scheme, the sending the expected mode number and/or the expected mode value to the sending end device includes:

quantizing the desired mode number and/or desired mode value;

and sending the quantized expected modal number and/or expected modal value to the sending terminal equipment.

The embodiment of the invention provides a parameter determination method, which is applied to sending end equipment and comprises the following steps:

receiving expected modal number of vortex electromagnetic waves sent by receiving end equipment; the expected modal number of the vortex electromagnetic wave is determined by the receiving end equipment based on the channel related parameters between the receiving end equipment and the sending end equipment; the vortex electromagnetic waves are electromagnetic waves carrying OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment;

and/or the presence of a gas in the gas,

receiving an expected modal value of vortex electromagnetic waves sent by receiving end equipment; the expected modal value of the vortex electromagnetic wave is determined by the receiving end equipment based on the channel related parameters between the receiving end equipment and the sending end equipment; and the expected modal value represents a modal value of the expected sending end equipment for bearing data to be sent.

In the above scheme, the method further comprises:

sending a reference signal to the receiving end equipment; the reference signal is used for the receiving end equipment to determine the expected modal number of the vortex electromagnetic wave.

In the above scheme, the method further comprises:

determining a first modal number of the vortex electromagnetic waves currently carrying data to be sent based on the expected modal number; notifying the receiving end device of the first mode number;

and/or the presence of a gas in the gas,

determining a first modal value of the vortex electromagnetic wave currently carrying data to be sent based on the expected modal value; and informing the receiving end equipment of the first modal value.

In the above scheme, the method further comprises:

generating vortex electromagnetic waves by using the first mode number; sending data to be sent to the receiving end equipment by using the generated vortex electromagnetic waves;

and/or the presence of a gas in the gas,

generating vortex electromagnetic waves by using the first modal value; and sending the data to be sent to the receiving end equipment by using the generated vortex electromagnetic waves.

An embodiment of the present invention provides a parameter determining apparatus, including:

the first processing unit is used for determining the expected modal number of the vortex electromagnetic wave based on the channel related parameters between the receiving end equipment and the sending end equipment; the vortex electromagnetic waves are electromagnetic waves carrying OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment; sending the expected modal number to the sending end equipment;

and/or the presence of a gas in the gas,

the second processing unit is used for determining an expected modal value of the vortex electromagnetic wave based on the channel related parameters between the receiving end equipment and the sending end equipment; the expected modal value represents a modal value of data to be sent borne by expected sending end equipment; and sending the expected modal value to the sending terminal equipment.

the first receiving unit is used for receiving the expected modal number of the vortex electromagnetic wave sent by the receiving end equipment; the expected modal number of the vortex electromagnetic wave is determined by the receiving end equipment based on the channel related parameters between the receiving end equipment and the sending end equipment; the vortex electromagnetic waves are electromagnetic waves carrying OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment;

and/or the presence of a gas in the gas,

the second receiving unit is used for receiving the expected modal value of the vortex electromagnetic wave sent by the receiving end equipment; the expected modal value of the vortex electromagnetic wave is determined by the receiving end equipment based on the channel related parameters between the receiving end equipment and the sending end equipment; and the expected modal value represents a modal value of the expected sending end equipment for bearing data to be sent.

An embodiment of the present invention provides a receiving end device, including:

the first processor is used for determining the expected modal number of the vortex electromagnetic wave based on the channel related parameters between the receiving end equipment and the sending end equipment; the vortex electromagnetic waves are electromagnetic waves carrying OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment; sending the expected modal number to the sending end equipment;

and/or the presence of a gas in the gas,

the second processor is used for determining an expected modal value of the vortex electromagnetic wave based on the channel related parameters between the receiving end equipment and the sending end equipment; the expected modal value represents a modal value of data to be sent borne by expected sending end equipment; and sending the expected modal value to the sending terminal equipment.

An embodiment of the present invention provides a sending-end device, including:

the first communication interface is used for receiving the expected modal number of the vortex electromagnetic wave sent by the receiving end equipment; the expected modal number of the vortex electromagnetic wave is determined by the receiving end equipment based on the channel related parameters between the receiving end equipment and the sending end equipment; the vortex electromagnetic waves are electromagnetic waves carrying OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment;

and/or the presence of a gas in the gas,

the second communication interface is used for receiving the expected modal value of the vortex electromagnetic wave sent by the receiving end equipment; the expected modal value of the vortex electromagnetic wave is determined by the receiving end equipment based on the channel related parameters between the receiving end equipment and the sending end equipment; and the expected modal value represents a modal value of the expected sending end equipment for bearing data to be sent.

The embodiment of the invention provides a receiving end device, which comprises a first processor and a first memory for storing a computer program capable of running on the processor,

wherein the first processor is configured to execute the steps of any one of the methods of the receiving end device side when the computer program is executed.

An embodiment of the present invention provides a sending-end device, including: a second processor and a second memory for storing a computer program capable of running on the processor,

wherein the second processor is configured to execute the steps of any one of the methods at the transmitting end device side when the computer program is executed.

An embodiment of the present invention provides a storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of any method on the receiving-end device side or implements the steps of any method on the transmitting-end device side.

According to the parameter determination method, the parameter determination device, the relevant equipment and the storage medium, the expected modal number of the vortex electromagnetic wave is determined based on the channel relevant parameters between the receiving end equipment and the sending end equipment; the vortex electromagnetic waves are electromagnetic waves carrying OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment; sending the expected modal number to the sending end equipment; and/or determining an expected modal value of the vortex electromagnetic wave based on channel related parameters between the receiving end equipment and the sending end equipment; the expected modal value represents a modal value of data to be sent borne by expected sending end equipment; and sending the expected modal value to the sending terminal equipment. By adopting the technical scheme of the embodiment of the invention, the expected modal number of the vortex electromagnetic waves can be determined based on the channel related parameters between the receiving end equipment and the sending end equipment, so that the influence of the channel between the receiving end equipment and the sending end equipment on the vortex electromagnetic waves can be avoided, the multi-modal vortex electromagnetic waves are ensured to be orthogonal to each other, the decoding complexity of the receiving end is reduced, and the system capacity is improved.

Drawings

Fig. 1 is a schematic diagram of an IAB base station in the related art;

FIG. 2 is a schematic view of a swirling electromagnetic wave in the related art;

fig. 3 is a first schematic flow chart illustrating an implementation of a method for determining parameters at a receiving end device side according to an embodiment of the present invention;

fig. 4 is a first flowchart illustrating an implementation of a method for determining parameters at a sending end device side according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a flow chart of implementing the method for determining parameters at the side of the receiving end device according to the embodiment of the present invention;

fig. 6 is a schematic diagram of an implementation flow of a method for determining parameters at a sending end device side according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a system capacity simulation according to an embodiment of the present invention;

FIG. 8 is a third schematic flow chart illustrating an implementation of the parameter determination method according to the embodiment of the present invention;

fig. 9 is a schematic flow chart of an implementation process in which sending-end equipment carries data to be sent based on a desired mode number according to an embodiment of the present invention;

fig. 10 is a schematic flow chart of an implementation process of a sending end device carrying data to be sent based on an expected modal value according to an embodiment of the present invention;

FIG. 11 is a first schematic diagram illustrating a first exemplary configuration of a parameter determining apparatus according to an embodiment of the present invention;

FIG. 12 is a schematic diagram of a second exemplary embodiment of a configuration of a parameter determining apparatus;

FIG. 13 is a third schematic view of a component structure of a parameter determining apparatus according to an embodiment of the present invention;

FIG. 14 is a fourth schematic structural diagram of a parameter determining apparatus according to an embodiment of the present invention;

FIG. 15 is a schematic diagram illustrating a fifth exemplary configuration of a parameter determining apparatus according to an embodiment of the present invention;

FIG. 16 is a sixth schematic structural diagram illustrating a component of a parameter determining apparatus according to an embodiment of the present invention;

fig. 17 is a schematic structural diagram of a receiving end device according to an embodiment of the present invention;

fig. 18 is a schematic structural diagram of a transmitting end device according to an embodiment of the present invention;

fig. 19 is a schematic structural diagram of a component of a parameter determination system according to an embodiment of the present invention.

Detailed Description

Before the technical solution of the embodiment of the present invention is introduced, a description is given of a related art.

In the related art, with the development of communication technology, a Fifth Generation mobile communication (5G) system can operate on a large bandwidth of 100MHz to 400MHz, and can improve a higher system rate, which provides conditions for application of an Integrated Access and Backhaul (IAB) base station. Fig. 1 is a schematic diagram of an IAB base station in the related art, and as shown in fig. 1, the IAB base station is an integrated access link and a backhaul link of the base station, in a 5G system, an access link may refer to a communication link between the IAB base station and a terminal, and a backhaul link may refer to a communication link between the IAB base station and a next generation node b (gnb) base station. When high frequency transmission is performed, a relay transmission method may be used to improve the signal coverage of the IAB base station, for example, a Time Division Multiplexing (TDM) method is used to perform relay transmission, in other words, if the IAB base station and the terminal perform communication in the access link, the IAB base station and the other IAB base station do not perform communication in the backhaul link.

In order to improve the spectrum utilization rate, the first mode is to adopt a Multiple Input Multiple Output (MIMO) technology to improve the spectrum utilization rate, and the second mode is to modulate data to be transmitted by using an electromagnetic wave carrying OAM, i.e., a vortex electromagnetic wave, where the vortex electromagnetic wave may have multiple modes, and the vortex electromagnetic waves of different modes are orthogonal to each other, so that multiple independent channels can be provided. In this way, the sending end device can send data to the receiving end device by using a plurality of independent channels, and fig. 2 is a schematic diagram of a vortex electromagnetic wave in the related art. However, the first method has the following disadvantages: multiplexing multi-stream data can be realized in an access link with a complex scattering environment, but only single-stream data transmission can be realized in a return link of an LoS path, and the spatial multiplexing effect is poor. The second mode has the defects that: the transmitting terminal equipment transmits data to the receiving terminal equipment by using the vortex electromagnetic waves with a plurality of modes, and the vortex electromagnetic waves with the plurality of modes can not be orthogonal to each other all the time, so that the decoding complexity of the receiving terminal equipment can be greatly improved, and the system capacity can be reduced.

Based on the above, in the embodiment of the present invention, the expected modal number of the vortex electromagnetic wave is determined based on the channel related parameters between the receiving end device and the sending end device; the vortex electromagnetic waves are electromagnetic waves carrying OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment; sending the expected modal number to the sending end equipment; and/or determining an expected modal value of the vortex electromagnetic wave based on channel related parameters between the receiving end equipment and the sending end equipment; the expected modal value represents a modal value of data to be sent borne by expected sending end equipment; and sending the expected modal value to the sending terminal equipment.

The technical solutions of the embodiments of the present invention are described in further detail below with reference to the accompanying drawings and embodiments.

An embodiment of the present invention provides a parameter determining method, which is applied to a receiving end device, and fig. 3 is a schematic flow chart of an implementation of the parameter determining method according to the embodiment of the present invention, and as shown in fig. 3, the method includes:

step 301: determining expected modal number of vortex electromagnetic waves based on channel related parameters between the receiving end equipment and the sending end equipment;

the vortex electromagnetic waves are electromagnetic waves carrying OAM; and the expected modal number represents the modal number of the expected sending end equipment for bearing the data to be sent.

Step 302: and sending the expected mode number to the sending terminal equipment.

Here, in step 301, in actual application, the receiving end device may be a terminal; the sending end device may refer to a base station, and in a 5G system, the base station may be a next generation node b (gnb). The link between the receiving end device and the sending end device may be an access link or a backhaul link.

Here, in step 301, the channel-related parameter may include one of the following:

the quality of the channel;

the rank of the channel.

The quality of the channel and the rank of the channel may be used to determine the number of modes in which the sending-end device is expected to carry data to be sent.

Here, in step 302, the desired mode number may be quantized first in practical application; and then, the quantized expected modal number is sent to the sending end equipment through the control information.

The concept of the eddy electromagnetic wave will be explained below.

By adding a phase rotation factor, as shown in equation (1)

A swirling electromagnetic wave is obtained that rotates around the propagation direction of the beam.

Wherein A (r) represents the amplitude of the electromagnetic wave, r represents the radiation distance to the central axis of the beam,

for azimuth, t represents the eigenvalue of orbital angular momentum, also called modal value. The equiphase plane of the electromagnetic wave carrying the OAM appears as a spiral along the propagation direction. If the rotor rotates for one circle, the phase changes by 2 pi t; when t is 0, the electromagnetic wave is a conventional plane wave and has no vortex characteristic. the value of t determines the number of mode values, i.e. the number of modes.

As shown in formula (2), in practical application, OAM vortex electromagnetic waves with different modal values can be transmitted in parallel within the same bandwidth. Wherein the content of the first and second substances,

where t1 and t2 represent different modal values.

In practical application, in order to ensure that vortex electromagnetic waves of multiple modes of data to be transmitted borne by the sending end device are always orthogonal to each other, and avoid the occurrence of problems that decoding complexity of the receiving end device is greatly increased due to the fact that mutual orthogonality cannot be ensured in the related technology, the receiving end device can determine the mode number of the data to be transmitted borne by the sending end device based on the related parameters of a channel between the receiving end device and the sending end device.

Based on this, in an embodiment, the determining an expected modal number of the vortex electromagnetic wave based on the channel related parameter between the receiving end device and the sending end device includes:

Wherein the reference signal may include one of:

a Synchronization Signal Block (SSB);

channel State Information Reference Signal (CSI-RS).

In practical application, the receiving end device may determine, based on the quality of a channel between the receiving end device and the sending end device, the number of modes in which the sending end device is expected to carry data to be sent, so as to ensure that vortex electromagnetic waves of multiple modes in which the sending end device carries data to be sent are always orthogonal to each other.

Based on this, in an embodiment, the performing channel estimation by using the reference signal to obtain a channel related parameter includes:

determining the quality of a channel using the reference signal;

Wherein the quality of the channel may comprise at least one of:

reference Signal Received Power (RSRP);

reference Signal Received Quality (RSRQ), Reference Signal Receiving Quality;

signal to Interference plus Noise Ratio (SINR).

For example, the SINR of the channel may be determined using the reference signal; based on the SINR, determining a quality of a channel. Or, determining the RSRQ of the channel by utilizing the reference signal; determining a quality of a channel based on the RSRQ. Or, determining the RSRP of the channel by utilizing the reference signal; determining a quality of a channel based on the RSRP.

Here, the receiving end device determines, based on the quality of the channel between the receiving end device and the sending end device, the number of modes in which the sending end device is expected to carry data to be sent, and the method has the following advantages:

if the quality of the channel between the receiving end device and the sending end device is good, the number of modes of the sending end device for bearing data to be sent is expected to be large; if the quality of the channel between the receiving end device and the sending end device is poor, it is expected that the number of modes of the sending end device for bearing the data to be sent is small. In other words, the size of the mode number is selected according to the quality of the channel between the receiving end device and the sending end device, so that in the process that the sending end device sends data to the receiving end device by using the vortex electromagnetic waves with the mode number, the multiple modes of the vortex electromagnetic waves can be guaranteed to be orthogonal to each other all the time, the receiving end device can be guaranteed to successfully receive the data sent by the receiving end device, and the system capacity is further improved.

In practical application, the receiving end device may determine, based on the rank of the channel between the receiving end device and the sending end device, the number of modes in which the sending end device is expected to carry data to be sent, so as to ensure that the vortex electromagnetic waves of the multiple modes in which the sending end device carries the data to be sent are always orthogonal to each other.

obtaining an equivalent channel matrix by using the reference signal;

and taking the obtained rank of the channel as the channel related parameter.

The equivalent channel matrix may be in the form of a matrix of transmission probabilities of a single symbol discrete channel. Eigenvalue decomposition may refer to decomposing the equivalent channel matrix based on eigenvalues corresponding to eigenvectors of the equivalent channel matrix.

Specifically, the reference signal may be utilized to perform channel estimation to obtain an equivalent channel matrix; determining a characteristic vector of an equivalent channel matrix; determining a characteristic value corresponding to the characteristic vector; determining an eigenvalue matrix based on the eigenvalues; and decomposing the equivalent channel matrix based on the characteristic value matrix to obtain the rank of the channel.

obtaining an equivalent channel matrix by using the reference signal;

performing Singular Value Decomposition (SVD) on the equivalent channel matrix to obtain the rank of a channel;

and taking the obtained rank of the channel as the channel related parameter.

The singular value decomposition may be to decompose the equivalent channel matrix based on a singular value corresponding to the eigenvector of the equivalent channel matrix.

Specifically, the reference signal may be utilized to perform channel estimation to obtain an equivalent channel matrix; determining a left singular eigenvector and a right singular eigenvector of an equivalent channel matrix; determining singular values corresponding to the left singular eigenvector and the right singular eigenvector; determining a singular value matrix based on the singular values; and decomposing the equivalent channel matrix based on the singular value matrix to obtain the rank of the channel.

By adopting the technical scheme of the embodiment of the invention, the expected modal number of the vortex electromagnetic waves can be determined based on the channel related parameters between the receiving end equipment and the sending end equipment, so that the influence of the channel between the receiving end equipment and the sending end equipment on the vortex electromagnetic waves can be avoided, the multi-modal vortex electromagnetic waves are ensured to be orthogonal to each other, the decoding complexity of the receiving end is reduced, and the system capacity is improved.

An embodiment of the present invention further provides a parameter determining method, which is applied to a sending end device, and fig. 4 is a schematic flow chart of an implementation of the parameter determining method according to the embodiment of the present invention, and as shown in fig. 4, the method includes:

step 401: receiving expected modal number of vortex electromagnetic waves sent by receiving end equipment;

the expected modal number of the vortex electromagnetic wave is determined by the receiving end equipment based on the channel related parameters between the receiving end equipment and the sending end equipment; the vortex electromagnetic waves are electromagnetic waves carrying OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment;

in practical application, in order to enable the receiving end equipment to select the size of the expected modal number according to the channel related parameters between the receiving end equipment and the sending end equipment, in the process that the sending end equipment sends data to the receiving end equipment by using the vortex electromagnetic waves with the expected modal number, a plurality of modes of the vortex electromagnetic waves can be guaranteed to be orthogonal to each other all the time, and therefore the receiving end equipment can successfully receive the data sent by the receiving end equipment, and system capacity is improved.

Based on this, in an embodiment, the method further comprises:

In actual application, after receiving the expected modal number sent by the receiving end device, the sending end device may determine to use the expected modal number to carry data to be sent.

Based on this, in an embodiment, the method further comprises:

determining a first modal number of the vortex electromagnetic waves currently carrying data to be sent based on the expected modal number; and informing the receiving end equipment of the first mode number.

Wherein the first number of modalities may be equal to the desired number of modalities.

Here, the sending-end device may also use, in combination with the actual situation, the first modality number having a smaller value than the expected modality number to carry the data to be sent.

In practical applications, in order to increase system capacity, the sending-end device may send data to the receiving-end device by using the vortex electromagnetic wave with the desired mode number.

Based on this, in an embodiment, the method further comprises:

generating vortex electromagnetic waves by using the first mode number; and sending the data to be sent to the receiving end equipment by using the generated vortex electromagnetic waves.

By adopting the technical scheme of the embodiment of the invention, the sending end equipment can receive the expected modal number of the vortex electromagnetic waves sent by the receiving end equipment, so that the sending end equipment can send data to the receiving end equipment by utilizing the vortex electromagnetic waves with the expected modal number to ensure that the multi-modal vortex electromagnetic waves are kept orthogonal to each other in the transmission process, thus realizing the purposes of reducing the decoding complexity of the receiving end and improving the system capacity.

An embodiment of the present invention further provides a parameter determining method, which is applied to a receiving end device, as shown in fig. 5, and includes:

step 501: determining an expected modal value of the vortex electromagnetic wave based on the channel related parameters between the receiving end equipment and the sending end equipment;

the expected modal value represents a modal value of data to be sent borne by expected sending end equipment;

step 502: and sending the expected modal value to the sending terminal equipment.

Here, in step 502, when actually applying, the expected modal value may be quantized first; and then the quantized expected modal value is sent to the sending end equipment.

In practical application, in order to ensure that vortex electromagnetic waves of multiple modes of data to be transmitted borne by the sending end device are always orthogonal to each other, and avoid the occurrence of problems that decoding complexity of the receiving end device is greatly increased due to the fact that mutual orthogonality cannot be ensured in the related technology, the receiving end device can determine a modal value of the data to be transmitted borne by the sending end device based on related parameters of a channel between the receiving end device and the sending end device.

Based on this, in an embodiment, the determining an expected modal value of a vortex electromagnetic wave based on a channel related parameter between the receiving end device and the sending end device includes:

Here, the process of determining the desired number of modes of the vortex electromagnetic wave has been described above and will not be described herein.

The preset channel parameter value may be a preset channel parameter value, or may be determined according to a maximum channel parameter value corresponding to a certain modal value in the modal value set.

Here, the process of determining the expected modal value of the vortical electromagnetic wave may include:

assuming that the modal value set is represented by { t1, t2, t3, t4, t5}, sorting the channel parameter values corresponding to t1, t2, t3, t4 and t5 to obtain a sorting result, taking the corresponding modal value in the maximum channel parameter values in the sorting result as the preset channel parameter value, and taking the corresponding modal value in the maximum channel parameter values in the sorting result as the first expected modal value.

For each modal value in the modal value set, summing a first channel parameter value corresponding to the corresponding modal value with the first expected modal value determined in the step 1 to obtain at least one numerical value; excluding from the set of modal values the modal value corresponding to the largest value of the at least one numerical value; the excluded modality value is taken as a second expected modality value;

for each modal value in the modal value set, summing a first channel parameter value corresponding to the corresponding modal value with a first expected modal value and a second expected modal value to obtain at least one numerical value; excluding from the set of modal values the modal value corresponding to the largest value of the at least one numerical value; the excluded modality value is taken as the next expected modality value; and so on until the determined number of desired modality values is the same as the desired modality number.

The ith desired modal value is calculated according to equation (3), where i is a positive integer greater than 1.

Where t represents the corresponding modal value in the maximum channel parameter value, H_iDenotes the t-th_iThe channel parameter values corresponding to the respective mode values are shown in formula (4).

After determining the expected modal value, the receiving end device may generate an expected modal value set by using the determined expected modal value; and sending the generated expected modal value set to the sending terminal equipment.

In practical application, the receiving end equipment can also determine the expected modal number based on the reference signal; and determining the expected modal value based on the corresponding relation between the expected modal number and the expected modal value.

By adopting the technical scheme of the embodiment of the invention, the expected modal value of the vortex electromagnetic wave can be determined based on the channel related parameters between the receiving end equipment and the sending end equipment, so that the influence of the channel between the receiving end equipment and the sending end equipment on the vortex electromagnetic wave can be avoided, the multimode vortex electromagnetic waves are ensured to be orthogonal to each other, the decoding complexity of the receiving end is reduced, and the system capacity is improved.

An embodiment of the present invention further provides a parameter determining method, applied to a sending end device, as shown in fig. 6, including:

step 601: receiving an expected modal value of vortex electromagnetic waves sent by receiving end equipment;

the expected modal value of the vortex electromagnetic wave is determined by the receiving end equipment based on the channel related parameters between the receiving end equipment and the sending end equipment; and the expected modal value represents a modal value of the expected sending end equipment for bearing data to be sent.

Based on this, in an embodiment, the method further comprises:

In actual application, after receiving the expected modal value sent by the receiving end device, the sending end device may determine to use the expected modal value to carry data to be sent.

Based on this, in an embodiment, the method further comprises:

Wherein, the number of the expected modal values may be at least one.

Here, the sending-end device may use the expected modal values to carry data to be sent, or may select at least one modal value from the expected modal values to carry data to be sent.

Fig. 7 is a schematic diagram illustrating a simulation of system capacity, and as shown in fig. 7, the larger the interval of the modal values is, the larger the system capacity is, and therefore, after the sending end device receives the expected modal value, the modal value with a larger interval may be selected from the expected modal value. For example, the expected modal value is represented by {1, 2, 3, 5, 6, 8}, and the sending end device may select 4 modal values of 1, 3, 6, 8 from {1, 2, 3, 5, 6, 8} to carry data to be sent.

In practical applications, in order to increase system capacity, the sending end device may send data to the receiving end device by using the vortex electromagnetic wave with the expected modal value.

Based on this, in an embodiment, the method further comprises:

By adopting the technical scheme of the embodiment of the invention, the sending end equipment can receive the expected modal value of the vortex electromagnetic wave sent by the receiving end equipment, so that the sending end equipment can send data to the receiving end equipment by utilizing the vortex electromagnetic wave with the expected modal value to ensure that the multi-modal vortex electromagnetic waves are kept orthogonal in the transmission process, thus realizing the reduction of the decoding complexity of the receiving end and simultaneously realizing the improvement of the system capacity.

An embodiment of the present invention provides a parameter determining method, and fig. 8 is a schematic diagram of an implementation flow of the parameter determining method according to the embodiment of the present invention, and as shown in fig. 8, the method includes:

step 801: and the receiving end equipment determines the expected modal number and the expected modal value of the vortex electromagnetic wave based on the channel related parameters between the receiving end equipment and the sending end equipment.

Step 802: and the receiving end equipment sends the expected modal number and the expected modal value to the sending end equipment.

Step 803: and the sending end equipment receives the expected modal number and the expected modal value of the vortex electromagnetic wave sent by the receiving end equipment.

It should be noted that: the specific processing procedures of the receiving end device and the sending end device are described in detail above, and are not described herein again.

By adopting the technical scheme of the embodiment of the invention, the receiving end equipment can determine the expected modal number and the expected modal value of the vortex electromagnetic waves based on the channel related parameters between the receiving end equipment and the sending end equipment and send the expected modal number and the expected modal value to the sending end equipment, so that the sending end equipment can send data to the receiving end equipment by utilizing the vortex electromagnetic waves with the expected modal number and the expected modal value to ensure that the multi-modal vortex electromagnetic waves are kept orthogonal in the transmission process, thus realizing the reduction of the decoding complexity of the receiving end and simultaneously realizing the improvement of the system capacity.

In an example, an implementation flow diagram that describes that a sending-end device carries data to be sent based on a desired modality number is shown in fig. 9, and includes:

step 1: the sending end equipment sends a reference signal to the receiving end equipment by using the plane wave.

Among them, the plane wave does not have a vortex characteristic. When the link between the receiving end device and the transmitting end device is a backhaul link, a cell-level reference signal may be used.

Step 2: the receiving end device determines the expected modal number based on the reference signal.

The first way is to determine the SINR of the channel; based on the SINR of the channel, the desired number of modes is determined.

Table 1 shows the correspondence between the SINR of the channel and the desired number of modes, and as shown in table 1, assuming that the SINR of the channel is 4, the desired number of modes is 7.

SINR of channel	Number of desired modes
		2	6
4	7
		6	8

TABLE 1

The first way is to determine the rank of the channel; based on the rank of the channel, a desired number of modalities is determined.

Table 2 shows the correspondence between the channel rank and the desired number of modes, and as shown in table 2, assuming that the channel rank is 6, the desired number of modes is 6.

Rank of channel	Number of desired modes
		6	6
7	7
		8	8

TABLE 2

And step 3: the receiving end equipment quantizes the expected modal number and sends the quantized expected modal number to the sending end equipment.

Assuming M is used to expect the number of modes, log can be used₂ ^MThe bits quantize the desired number of modes.

And 4, step 4: and the sending end equipment receives the expected modal number and determines to use the expected modal number to carry data to be sent.

The sending end device informs the receiving end device of the expected modal number for bearing the data to be sent through the control information.

And 5: and the sending end equipment sends data to be sent to the receiving end equipment by using the vortex electromagnetic wave with the expected modal number.

Step 6: and receiving end equipment receives the data to be sent.

The receiving end equipment receives the data to be sent by the sending end equipment according to the expected modal number notified by the sending end equipment.

In this example, the receiving end device selects the expected modal number according to the channel related parameters between itself and the sending end device, so that in the process that the sending end device sends data to the receiving end device by using the vortex electromagnetic wave with the expected modal number, multiple modes of the vortex electromagnetic wave can be guaranteed to be orthogonal to each other all the time, and therefore the receiving end device can successfully receive the data sent by the receiving end device, and system capacity is improved.

In an example, an implementation flow diagram that describes that a sending-end device carries data to be sent based on an expected modal value is described, as shown in fig. 10, the implementation flow diagram includes:

Step 2: the receiving end device determines an expected modal value based on the reference signal.

The receiving end device may determine the expected number of modalities based on the reference signal; and determining the expected modal value based on the corresponding relation between the expected modal number and the expected modal value.

Table 3 shows a correspondence relationship between the expected mode number and the expected mode value, and as shown in table 3, when the expected mode number is 1, the value l of the expected mode value is 0; when the number of the expected modes is 2, the value l of the expected mode value is 0 and 1, or the value l of the expected mode value is 0 and-1; when the number of the expected modes is 3, the value l of the expected mode value is 0, 1 and N, or the value l of the expected mode value is 0, -1 and-N; when the number of the expected modes is 4, the value of the expected mode value is 0, 1, rounding is performed under N/2, and N, or the value of the expected mode value is 0, -1, rounding is performed under N/2, and N; when the number of the expected modes is 5, the value of the expected mode value is 0, 1, N/3 rounded, 2N/3 rounded, and N, or l is 0, -1, -N/3 rounded, -2N/3 rounded, -N; when the number of desired modes is k, the value of the desired mode value l is 0, 1, …, i × N/(k-1) rounded, N, or the value of the desired mode value l is 0, -1, -i × N/(k-1) rounded, -N. Wherein N, k is a positive integer, i is 1, …, k-3.

TABLE 3

And step 3: and the receiving end equipment quantizes the expected modal value and sends the quantized expected modal value to the sending end equipment.

And 4, step 4: and the sending end equipment receives the expected modal value and determines to use the expected modal value to carry data to be sent.

The sending end device notifies the receiving end device of an expected modal value for carrying data to be sent through the control information.

And 5: and the sending end equipment sends data to be sent to the receiving end equipment by using the vortex electromagnetic wave with the expected modal value.

Step 6: and receiving end equipment receives the data to be sent.

In this example, the receiving end device selects the expected modal value according to the channel related parameters between itself and the sending end device, so that in the process that the sending end device sends data to the receiving end device by using the vortex electromagnetic wave with the expected modal value, multiple modes of the vortex electromagnetic wave can be guaranteed to be orthogonal to each other all the time, and therefore the receiving end device can successfully receive the data sent by the receiving end device, and system capacity is improved.

In order to implement the parameter determining method according to the embodiment of the present invention, an embodiment of the present invention further provides a parameter determining apparatus, which is configured on a receiving end device, and fig. 11 is a schematic structural diagram of the parameter determining apparatus according to the embodiment of the present invention; as shown in fig. 11, the apparatus includes:

the first processing unit 111 is configured to determine an expected modal number of the vortex electromagnetic wave based on a channel related parameter between the receiving end device and the sending end device; the vortex electromagnetic waves are electromagnetic waves carrying orbital angular momentum OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment; and sending the expected mode number to the sending terminal equipment.

In an embodiment, the first processing unit 111 is specifically configured to:

determining the quality of a channel using the reference signal;

In an embodiment, the first processing unit 111 is specifically configured to:

determining the SINR of the channel by using the reference signal;

based on the SINR, determining a quality of a channel.

In an embodiment, the first processing unit 111 is specifically configured to:

obtaining an equivalent channel matrix by using the reference signal;

and taking the obtained rank of the channel as the channel related parameter.

In an embodiment, the first processing unit 111 is specifically configured to:

quantizing the desired mode number;

and sending the quantized expected modal number to the sending terminal equipment.

In practical applications, the first processing unit 111 may be implemented by a processor in the parameter determination device in combination with a communication interface; the obtaining unit may be implemented by a communication interface in the parameter determination device.

It should be noted that: in the parameter determination apparatus provided in the above embodiment, when determining the parameter, only the division of each program module is taken as an example, and in practical applications, the above processing may be distributed to different program modules according to needs, that is, the internal structure of the apparatus may be divided into different program modules to complete all or part of the above-described processing. In addition, the parameter determining apparatus and the parameter determining method provided in the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.

In order to implement the parameter determining method according to the embodiment of the present invention, an embodiment of the present invention further provides a parameter determining apparatus, which is configured on a sending end device, and fig. 12 is a schematic structural diagram of the parameter determining apparatus according to the embodiment of the present invention; as shown in fig. 12, the apparatus includes:

a first receiving unit 121, configured to receive an expected modal number of the vortex electromagnetic wave sent by the receiving end device; the expected modal number of the vortex electromagnetic wave is determined by the receiving end equipment based on the channel related parameters between the receiving end equipment and the sending end equipment; the vortex electromagnetic waves are electromagnetic waves carrying OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment;

in one embodiment, the apparatus further comprises:

a transmitting unit that transmits a reference signal to the receiving end device; the reference signal is used for the receiving end equipment to determine the expected modal number of the vortex electromagnetic wave.

In one embodiment, the apparatus further comprises:

a first determining unit, configured to determine, based on the expected modal number, a first modal number of a vortex electromagnetic wave currently carrying data to be sent; notifying the receiving end device of the first mode number;

in one embodiment, the apparatus further comprises:

the first generation unit is used for generating vortex electromagnetic waves by utilizing the first mode number; and sending the data to be sent to the receiving end equipment by using the generated vortex electromagnetic waves.

In practical application, the first determining unit and the first generating unit may be implemented by a processor in the parameter determining device in combination with a communication interface; the first receiving unit 121 and the sending unit may be implemented by a communication interface in the parameter determination device.

In order to implement the parameter determining method according to the embodiment of the present invention, an embodiment of the present invention further provides a parameter determining apparatus, which is configured on a receiving end device, and fig. 13 is a schematic structural diagram of the parameter determining apparatus according to the embodiment of the present invention; as shown in fig. 13, the apparatus includes:

the second processing unit 131 is configured to determine an expected modal value of the vortex electromagnetic wave based on a channel related parameter between the receiving end device and the sending end device; the expected modal value represents a modal value of data to be sent borne by expected sending end equipment; and sending the expected modal value to the sending terminal equipment.

In an embodiment, the second processing unit 131 is configured to determine an expected modal value of the vortex electromagnetic wave based on a channel related parameter between the receiving end device and the sending end device; the expected modal value represents a modal value of data to be sent borne by expected sending end equipment; and sending the expected modal value to the sending terminal equipment.

In an embodiment, the second processing unit 131 is specifically configured to:

quantizing the desired modal value;

and sending the quantized expected modal value to the sending terminal equipment.

In practical applications, the second processing unit 131 may be implemented by a processor in the parameter determination device in combination with a communication interface; the obtaining unit may be implemented by a communication interface in the parameter determination device.

In order to implement the parameter determining method according to the embodiment of the present invention, an embodiment of the present invention further provides a parameter determining apparatus, which is configured on the sending end device, and fig. 14 is a schematic structural diagram of the parameter determining apparatus according to the embodiment of the present invention; as shown in fig. 14, the apparatus includes:

the second receiving unit 141 is configured to receive an expected modal value of the vortex electromagnetic wave sent by the receiving end device; the expected modal value of the vortex electromagnetic wave is determined by the receiving end equipment based on the channel related parameters between the receiving end equipment and the sending end equipment; and the expected modal value represents a modal value of the expected sending end equipment for bearing data to be sent.

In one embodiment, the apparatus further comprises:

a second determining unit, configured to determine, based on the expected modal value, a first modal value of a vortex electromagnetic wave currently carrying data to be sent; and informing the receiving end equipment of the first modal value.

In one embodiment, the apparatus further comprises:

In practical application, the second determining unit and the first generating unit may be implemented by a processor in the parameter determining device in combination with a communication interface; the second receiving unit 141 and the sending unit may be implemented by a communication interface in the parameter determination device.

In order to implement the parameter determining method according to the embodiment of the present invention, an embodiment of the present invention further provides a parameter determining apparatus, which is configured on a receiving end device, and fig. 15 is a schematic structural diagram of the parameter determining apparatus according to the embodiment of the present invention; as shown in fig. 15, the apparatus includes:

the third processing unit 151 is configured to determine an expected modal number of the vortex electromagnetic wave based on a channel related parameter between the receiving end device and the sending end device; the vortex electromagnetic waves are electromagnetic waves carrying OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment; sending the expected modal number to the sending end equipment;

a fourth processing unit 152, configured to determine an expected modal value of the vortex electromagnetic wave based on a channel related parameter between the receiving end device and the sending end device; the expected modal value represents a modal value of data to be sent borne by expected sending end equipment; and sending the expected modal value to the sending terminal equipment.

In an embodiment, the third processing unit 151 is specifically configured to:

determining the quality of a channel using the reference signal;

In an embodiment, the third processing unit 151 is specifically configured to:

determining the SINR of the channel by using the reference signal;

based on the SINR, determining a quality of a channel.

In an embodiment, the third processing unit 151 is specifically configured to:

obtaining an equivalent channel matrix by using the reference signal;

and taking the obtained rank of the channel as the channel related parameter.

In an embodiment, the third processing unit 151 is specifically configured to:

quantizing the desired mode number;

In an embodiment, the fourth processing unit 152 is configured to determine an expected modal value of the vortex electromagnetic wave based on a channel related parameter between the receiving end device and the sending end device; the expected modal value represents a modal value of data to be sent borne by expected sending end equipment; and sending the expected modal value to the sending terminal equipment.

In an embodiment, the fourth processing unit 152 is specifically configured to:

quantizing the desired modal value;

In practical applications, the third processing unit 151 and the fourth processing unit 152 may be implemented by a processor in the parameter determination device in combination with a communication interface; the obtaining unit may be implemented by a communication interface in the parameter determination device.

In order to implement the parameter determining method according to the embodiment of the present invention, an embodiment of the present invention further provides a parameter determining apparatus, which is configured on a sending end device, and fig. 16 is a schematic structural diagram of the parameter determining apparatus according to the embodiment of the present invention; as shown in fig. 16, the apparatus includes:

a third receiving unit 161, configured to receive the expected modal number of the vortex electromagnetic wave sent by the receiving end device; the expected modal number of the vortex electromagnetic wave is determined by the receiving end equipment based on the channel related parameters between the receiving end equipment and the sending end equipment; the vortex electromagnetic waves are electromagnetic waves carrying OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment;

a fourth receiving unit 162, configured to receive an expected modal value of the vortex electromagnetic wave sent by the receiving end device; the expected modal value of the vortex electromagnetic wave is determined by the receiving end equipment based on the channel related parameters between the receiving end equipment and the sending end equipment; and the expected modal value represents a modal value of the expected sending end equipment for bearing data to be sent.

In one embodiment, the apparatus further comprises:

and/or the presence of a gas in the gas,

In one embodiment, the apparatus further comprises:

the first generation unit is used for generating vortex electromagnetic waves by utilizing the first mode number; sending data to be sent to the receiving end equipment by using the generated vortex electromagnetic waves;

and/or the presence of a gas in the gas,

the second generation unit is used for generating vortex electromagnetic waves by utilizing the first modal value; and sending the data to be sent to the receiving end equipment by using the generated vortex electromagnetic waves.

In practical application, the first determining unit, the second determining unit, the first generating unit and the second generating unit may be implemented by a processor in the parameter determining device in combination with a communication interface; the third receiving unit 161, the fourth receiving unit 162 and the sending unit may be implemented by communication interfaces in the parameter determination device.

An embodiment of the present invention further provides a receiving end device, as shown in fig. 17, including:

a first communication interface 171 capable of information interaction with other devices;

the first processor 172 is connected to the first communication interface 171, and is configured to execute a method provided by one or more technical solutions of the foregoing smart device side when running a computer program. And the computer program is stored on the first memory 173.

It should be noted that: the specific processing procedures of the first processor 172 and the first communication interface 171 are detailed in the method embodiment, and are not described herein again.

Of course, in practice, the various components in the sink device 170 are coupled together via the bus system 174. It is understood that the bus system 174 is used to enable communications among the components. The bus system 174 includes a power bus, a control bus, and a status signal bus in addition to the data bus. For clarity of illustration, however, the various buses are labeled as bus system 174 in fig. 17.

The first memory 177 in the embodiment of the present application is used to store various types of data to support the operation of the network device 170. Examples of such data include: any computer program for operation on the sink device 170.

The method disclosed in the embodiments of the present application may be applied to the first processor 172, or implemented by the first processor 172. The first processor 172 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the first processor 172. The first Processor 172 may be a general purpose Processor, a Digital data Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The first processor 172 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the first memory 177, and the first processor 172 reads the information in the first memory 177 and completes the steps of the foregoing method in combination with the hardware thereof.

In an exemplary embodiment, the sink Device 170 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.

An embodiment of the present invention further provides a sending end device, as shown in fig. 18, including:

a second communication interface 181 capable of performing information interaction with other devices;

the second processor 182 is connected to the second communication interface 181, and configured to execute a method provided by one or more technical solutions of the foregoing smart device side when running a computer program. And the computer program is stored on the second memory 183.

Of course, in practice, the various components of the initiator device 180 are coupled together by a bus system 184. It will be appreciated that the bus system 184 is used to enable communications among the components. The bus system 184 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 184 in fig. 18.

The second memory 183 in the embodiment of the present application is used for storing various types of data to support the operation of the terminal 180. Examples of such data include: any computer program for operating on the sending end device 180.

The method disclosed in the embodiments of the present application may be applied to the second processor 182, or implemented by the second processor 182. The second processor 182 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the second processor 182. The second processor 182 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The second processor 182 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the second memory 183 and the second processor 182 reads the information in the second memory 183 and performs the steps of the aforementioned method in combination with its hardware.

In an exemplary embodiment, the sender device 180 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components for performing the aforementioned methods.

It is understood that the memories (the first memory 173, the second memory 183) of the embodiments of the present application may be either volatile memory or nonvolatile memory, and may include both volatile and nonvolatile memories. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The memories described in the embodiments of the present application are intended to comprise, without being limited to, these and any other suitable types of memory.

In order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides a parameter determining system, as shown in fig. 19, where the system includes:

the receiving end device 191 is configured to determine an expected modal number of the vortex electromagnetic wave based on a channel related parameter between the receiving end device and the sending end device; the vortex electromagnetic waves are electromagnetic waves carrying orbital angular momentum OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment; sending the expected modal number to the sending end equipment;

and/or the presence of a gas in the gas,

The sending end device 192 receives the expected modal number of the vortex electromagnetic wave sent by the receiving end device; the expected modal number of the vortex electromagnetic wave is determined by the receiving end equipment based on the channel related parameters between the receiving end equipment and the sending end equipment; the vortex electromagnetic waves are electromagnetic waves carrying OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment;

and/or the presence of a gas in the gas,

It should be noted that: the specific processing procedures of the receiving end device 191 and the sending end device 192 are described in detail above, and are not described herein again.

In an exemplary embodiment, the present invention further provides a storage medium, specifically a computer-readable storage medium, for example, a first memory 173 storing a computer program, which can be executed by the first processor 172 of the receiving end device 170 to complete the steps of the receiving end device side method. For another example, the second memory 183 may store a computer program, which may be executed by the second processor 182 of the transmitting-end device 180 to perform the steps of the transmitting-end device side method. The computer readable storage medium may be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM.

It should be noted that: "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In addition, the technical solutions described in the embodiments of the present invention may be arbitrarily combined without conflict.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A parameter determination method is applied to receiving end equipment, and the method comprises the following steps:

determining expected modal number of vortex electromagnetic waves based on channel related parameters between the receiving end equipment and the sending end equipment; the vortex electromagnetic waves are electromagnetic waves carrying orbital angular momentum OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment; sending the expected modal number to the sending end equipment;

and/or the presence of a gas in the gas,

2. The method according to claim 1, wherein the determining the expected modal number of the vortex electromagnetic wave based on the channel-related parameter between the receiving end device and the sending end device comprises:

3. The method of claim 2, wherein the performing channel estimation using the reference signal to obtain channel related parameters comprises:

determining the quality of a channel using the reference signal;

4. The method of claim 2, wherein the performing channel estimation using the reference signal to obtain channel related parameters comprises:

obtaining an equivalent channel matrix by using the reference signal;

and taking the obtained rank of the channel as the channel related parameter.

5. The method according to claim 1, wherein the determining the expected modal value of the vortex electromagnetic wave based on the channel-related parameter between the receiving end device and the sending end device comprises:

6. The method according to claim 1, wherein the sending the desired number of modalities and/or the desired modality value to the sender device comprises:

quantizing the desired mode number and/or desired mode value;

7. A parameter determination method is applied to a sending terminal device, and the method comprises the following steps:

and/or the presence of a gas in the gas,

8. The method of claim 7, further comprising:

9. The method of claim 7, further comprising:

and/or the presence of a gas in the gas,

10. The method of claim 9, further comprising:

and/or the presence of a gas in the gas,

11. A parameter determination apparatus, comprising:

the first processing unit is used for determining the expected modal number of the vortex electromagnetic wave based on the channel related parameters between the receiving end equipment and the sending end equipment; the vortex electromagnetic waves are electromagnetic waves carrying orbital angular momentum OAM; the expected modal number represents the modal number of data to be sent borne by the expected sending end equipment; sending the expected modal number to the sending end equipment;

and/or the presence of a gas in the gas,

12. A parameter determination apparatus, comprising:

and/or the presence of a gas in the gas,

13. A receiving-end device, comprising:

and/or the presence of a gas in the gas,

14. A transmitting-end device, comprising:

and/or the presence of a gas in the gas,

15. A receiving-end device comprising a first processor and a first memory for storing a computer program capable of running on the processor,

wherein the first processor is adapted to perform the steps of the method of any one of claims 1 to 6 when running the computer program.

16. A transmitting-end device, comprising: a second processor and a second memory for storing a computer program capable of running on the processor,

wherein the second processor is adapted to perform the steps of the method of any of claims 7 to 10 when running the computer program.

17. A storage medium having stored thereon a computer program for performing the steps of the method of any one of claims 1 to 6 or for performing the steps of the method of any one of claims 7 to 10 when executed by a processor.