CN111181583A

CN111181583A - Method and device for compensating strength of transmitting and receiving signal, transmitting and receiving equipment

Info

Publication number: CN111181583A
Application number: CN201911404108.6A
Authority: CN
Inventors: 朱冲; 董星; 胡诗尧; 吴浩然; 刘在群
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-05-19
Anticipated expiration: 2039-12-30
Also published as: CN111181583B

Abstract

The embodiment of the application provides a method and a device for compensating the strength of a sending signal and a receiving signal, and sending equipment and receiving equipment, wherein in the method for compensating the strength of the sending signal, the maximum omnidirectional sending signal strength is determined according to a sending radiation directional diagram of a current antenna, and the sending signal strength is compensated by combining a sending signal departure angle based on the maximum omnidirectional sending signal strength; in the received signal strength compensation method, the maximum omnidirectional received signal strength is determined according to the receiving directional diagram of the current antenna, and the received signal strength is compensated based on the maximum omnidirectional received signal strength and by combining the arrival angle of the received signal, so that the signal strength of the omnidirectional antenna on the transmitted signal and the received signal of any directional diagram antenna can be realized, the directivity problem caused by the antenna can be effectively shielded, and the signals transmitted and received by the antenna in all directions are uniformly distributed with the physical distance.

Description

Method and device for compensating strength of transmitting and receiving signal, transmitting and receiving equipment

Technical Field

The present application relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for compensating strength of a transmission signal and a reception signal, and a transmission device and a reception device.

Background

In the Wireless communication process, the antenna technology is very critical, and taking Wireless Fidelity (WiFi) as an example, a typical antenna subsystem may be as shown in fig. 1, where fig. 1 is a schematic diagram of a WiFi subsystem in the related art.

In a main user scenario, because the relative positions of two communication parties are uncertain, globally optimal typical antenna radiation should be a uniform spherical shape, the antenna with the uniform spherical radiation at the transmitting end is called an omnidirectional antenna, a horizontal cutting plane directional pattern of a typical omnidirectional antenna is shown in fig. 2, and fig. 2 is a horizontal cutting plane directional pattern of the omnidirectional antenna in the prior art. However, due to the space layout limitation of the device where the antenna is located, the on-board interference of the device where the antenna is located, the directional pattern design of the antenna itself, and so on, the horizontal cutting plane directional pattern of the antenna is generally seen as shown in fig. 3, and fig. 3 is the horizontal cutting plane directional pattern of the antenna generally seen in the related art.

In the directional diagram shown in fig. 3, the signal strength in the 45 ° direction is significantly weaker than that in the 270 ° direction at the same sight distance and unobstructed direct physical distance, so that there is a large difference in the signal strength values detected in the foregoing scenario by using the same omnidirectional antenna receiver, and this problem is called the antenna directivity problem. Furthermore, since the antenna is designed passively, the reception usually has similar directivity problems, which further increases the signal strength gap, and thus causes directivity problems for the applications based on signal strength, such as: distance testing and/or direction testing, etc.

At present, how to supplement an antenna with uneven radiation into an omnidirectional antenna through a relevant transceiving compensation algorithm is defined in standard and industry applications without restriction.

Disclosure of Invention

The application provides a method and a device for compensating the strength of a sending signal and a receiving signal, and sending and receiving equipment, and also provides a computer readable storage medium, so as to achieve the signal strength of an ideal omnidirectional antenna on the sending and receiving signals of any directional pattern antenna.

In a first aspect, the present application provides a method for compensating wireless signal strength, including:

acquiring a transmitting radiation directional diagram of a current antenna, and acquiring a transmitting signal departure angle of receiving equipment; specifically, The sending radiation pattern of The current antenna can be obtained by an antenna Air performance (Over The Air; hereinafter referred to as OTA) laboratory actual measurement mode, or obtained by sampling by adopting other automatic methods;

according to the transmitting signal departure angle, searching a directional diagram sampling value which is on the same horizontal plane with the receiving equipment in the sampling value of the transmitting radiation directional diagram; specifically, 360 ° spherical X/Y/Z triaxial sampling, horizontal direction sampling or vertical direction sampling may be performed for a transmission radiation pattern of a current antenna; further, after obtaining the sampling values of the transmission radiation pattern, according to the departure angle of the transmission signal, looking up the pattern sampling values in the same horizontal plane as the receiving device in the sampling values of the transmission radiation pattern, such as in the vertical horizontal plane:

the step is actually to perform dimension reduction processing, and convert the spherical coordinate system into a plane coordinate system;

determining the maximum omnidirectional sending signal intensity according to the searched directional diagram sampling value;

and compensating the strength of the transmitting signal transmitted to the receiving equipment according to the maximum omnidirectional transmitting signal strength and the searched transmitting signal strength in each direction in the directional diagram sampling value.

In one possible implementation manner, the determining the maximum omni-directional transmission signal strength according to the searched directional diagram sample value includes:

calculating a maximum directional diagram meeting the uniform radiation of the omnidirectional antenna according to the searched directional diagram sampling value; the maximum directional diagram which is uniformly radiated by the omnidirectional antenna is met, namely an inscribed circle of the searched directional diagram sampling value;

and determining the maximum omnidirectional sending signal strength according to the radius value of the maximum directional diagram.

In one possible implementation manner, the compensating, according to the maximum omnidirectional transmission signal strength and the searched transmission signal strength in each direction of the directional pattern sample value, the transmission signal strength transmitted to the receiving device includes:

determining the sending signal strength in each direction in the searched directional diagram sampling value;

determining the compensation signal intensity in each direction according to the maximum omnidirectional transmission signal intensity and the transmission signal intensity in each direction;

and according to the compensation signal intensity in each direction, compensating the transmission signal intensity transmitted to the receiving equipment in each direction.

In the method for compensating the intensity of the transmitted signal, a transmitted radiation directional diagram of a current antenna is obtained, and after a transmitted signal departure angle of a receiving device is obtained, a directional diagram sampling value on the same horizontal plane with the receiving device is searched in a sampling value of the transmitted radiation directional diagram according to the transmitted signal departure angle; then determining the maximum omnidirectional transmission signal intensity according to the searched directional diagram sampling value; and finally, compensating the strength of the transmitting signal transmitted to the receiving equipment according to the maximum omnidirectional transmitting signal strength and the searched transmitting signal strength in each direction in the directional diagram sampling value, so that the signal strength of the omnidirectional antenna on the transmitting signal of any directional diagram antenna can be realized, the directivity problem caused by the antenna can be effectively shielded, and the transmitting signals in each direction of the antenna are uniformly distributed with the physical distance.

In a second aspect, an embodiment of the present application provides a received signal strength compensation method, including:

acquiring a receiving directional diagram of a current antenna and acquiring a received signal arrival angle of a sending device; specifically, the reception pattern of the current antenna may be obtained by an OTA laboratory actual measurement method, or obtained by sampling by using other automatic methods;

according to the arrival angle of the received signal, searching a directional diagram sampling value which is in the same horizontal plane with the transmitting device in the sampling value of the receiving directional diagram; specifically, 360 ° spherical X/Y/Z triaxial sampling, horizontal direction sampling or vertical direction sampling may be performed for a reception pattern of a current antenna; further, after obtaining the sampling value of the reception pattern, according to the arrival angle of the reception signal, the sampling value of the pattern in the same horizontal plane as the transmission device may be searched in the sampling value of the reception pattern, for example, in a vertical horizontal plane:

determining the maximum omnidirectional received signal strength according to the searched directional diagram sampling value;

and compensating the received signal strength from the sending equipment according to the maximum omnidirectional received signal strength and the searched received signal strength in each direction in the directional diagram sampling value.

In one possible implementation manner, the determining the maximum omni-directional received signal strength according to the searched directional diagram sample value includes:

and determining the maximum omnidirectional received signal strength according to the radius value of the maximum directional diagram.

In one possible implementation manner, the compensating the received signal strength from the sending device according to the maximum omnidirectional received signal strength and the received signal strength in each direction of the searched directional pattern sample value includes:

determining the received signal strength in each direction in the searched directional diagram sampling value;

determining the compensation signal intensity in each direction according to the maximum omnidirectional received signal intensity and the received signal intensity in each direction;

compensating the received signal strength from the transmitting device in each direction according to the compensated signal strength in each direction.

In the received signal strength compensation method, after the receiving direction diagram of the current antenna is obtained and the received signal arrival angle of the sending device is obtained, according to the received signal arrival angle, searching the sampling value of the directional pattern which is in the same horizontal plane with the transmitting device in the sampling value of the receiving directional pattern, determining the maximum omnidirectional received signal strength according to the searched directional pattern sampling value, and finally, according to the maximum omnidirectional received signal strength and the received signal strength of each direction in the searched directional pattern sampling value, the received signal strength from the transmitting device is compensated, so that it is possible to realize, for an arbitrary directional pattern antenna, the signal strength of the omnidirectional antenna is achieved on the received signals, the directivity problem caused by the antenna can be effectively shielded, and the received signals in all directions of the antenna are uniformly distributed with the physical distance.

In a third aspect, an embodiment of the present application provides a transmission signal strength compensation apparatus, including:

the acquisition module is used for acquiring a transmitting radiation directional diagram of a current antenna and acquiring a transmitting signal departure angle of receiving equipment;

the searching module is used for searching a directional diagram sampling value which is positioned on the same horizontal plane with the receiving equipment in the sampling value of the transmitting radiation directional diagram according to the transmitting signal departure angle;

the determining module is used for determining the maximum omnidirectional transmitting signal strength according to the directional diagram sampling value searched by the searching module;

and the compensation module is used for compensating the strength of the transmitting signal transmitted to the receiving equipment according to the strength of the maximum omnidirectional transmitting signal determined by the determination module and the strength of the transmitting signal in each direction in the directional diagram sampling value searched by the search module.

In one possible implementation manner, the determining module includes:

the calculation submodule is used for calculating a maximum directional diagram which meets the uniform radiation of the omnidirectional antenna according to the directional diagram sampling value searched by the searching module;

and the first strength determining submodule is used for determining the maximum omnidirectional transmitting signal strength according to the radius value of the maximum directional diagram.

In one possible implementation manner, the compensation module includes:

the second intensity determination submodule is used for determining the intensity of the sending signal in each direction in the searched directional diagram sampling value; determining the compensation signal intensity in each direction according to the maximum omnidirectional transmission signal intensity and the transmission signal intensity in each direction;

and the intensity compensation submodule is used for compensating the intensity of the sending signal transmitted to the receiving equipment in each direction according to the intensity of the compensation signal in each direction.

In a fourth aspect, an embodiment of the present application provides a received signal strength compensation apparatus, including:

an obtaining module, configured to obtain a reception direction diagram of a current antenna, and obtain a received signal arrival angle with a sending device;

the searching module is used for searching a directional diagram sampling value which is in the same horizontal plane with the sending device in the sampling value of the receiving directional diagram according to the arrival angle of the receiving signal;

the determining module is used for determining the maximum omnidirectional received signal strength according to the directional diagram sampling value searched by the searching module;

and the compensation module is used for compensating the received signal strength from the sending equipment according to the maximum omnidirectional received signal strength determined by the determination module and the received signal strength of each direction in the directional diagram sampling value searched by the search module.

In one possible implementation manner, the determining module includes:

and the first strength determining submodule is used for determining the maximum omnidirectional received signal strength according to the radius value of the maximum directional diagram.

In one possible implementation manner, the compensation module includes:

the second intensity determination submodule is used for determining the intensity of the received signal in each direction in the searched directional diagram sampling value; and determining a compensation signal strength in each direction according to the maximum omnidirectional received signal strength and the received signal strength in each direction;

and the intensity compensation submodule is used for compensating the intensity of the received signal from the sending equipment in each direction according to the intensity of the compensated signal in each direction.

In a fifth aspect, an embodiment of the present application provides a sending device, including:

an antenna; one or more processors; a memory; a plurality of application programs; and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions which, when executed by the apparatus, cause the apparatus to perform the steps of:

acquiring a transmitting radiation directional diagram of a current antenna, and acquiring a transmitting signal departure angle of receiving equipment;

according to the transmitting signal departure angle, searching a directional diagram sampling value which is on the same horizontal plane with the receiving equipment in the sampling value of the transmitting radiation directional diagram;

In one possible implementation manner, when executed by the apparatus, the instruction causes the apparatus to determine the maximum omni-directional transmission signal strength according to the searched directional pattern sample value, where the step includes:

calculating a maximum directional diagram meeting the uniform radiation of the omnidirectional antenna according to the searched directional diagram sampling value;

In one possible implementation manner, when executed by the apparatus, the step of causing the apparatus to perform the step of compensating for the transmission signal strength transmitted to the receiving apparatus according to the maximum omni-directional transmission signal strength and the transmission signal strength in each direction of the searched directional pattern sample value includes:

In a sixth aspect, an embodiment of the present application provides a receiving apparatus, including:

acquiring a receiving directional diagram of a current antenna and acquiring a received signal arrival angle of a sending device;

according to the arrival angle of the received signal, searching a directional diagram sampling value which is in the same horizontal plane with the transmitting device in the sampling value of the receiving directional diagram;

In one possible implementation manner, when executed by the apparatus, the instruction causes the apparatus to determine the maximum omni-directional received signal strength according to the found directional pattern sample value, where the step includes:

In one possible implementation manner, when executed by the apparatus, the instruction causes the apparatus to perform the step of compensating for the received signal strength from the sending apparatus according to the maximum omni-directional received signal strength and the received signal strength of each direction in the searched directional pattern sample value, where the step includes:

It should be understood that the third and fifth aspects of the present application are consistent with the technical solution of the first aspect of the present application, and the beneficial effects achieved by the aspects and the corresponding possible implementation manners are similar, and are not described again; the fourth and sixth aspects of the present application are consistent with the technical solution of the second aspect of the present application, and the beneficial effects obtained by the aspects and the corresponding possible implementation are similar, and are not repeated.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored, and when the computer program runs on a computer, the computer is caused to execute the method provided in the first aspect.

In an eighth aspect, embodiments of the present application provide a computer-readable storage medium, which stores a computer program, and when the computer program runs on a computer, the computer program causes the computer to execute the method provided in the second aspect.

In a ninth aspect, the present application provides a computer program for performing the method of the first aspect when the computer program is executed by a computer.

In a tenth aspect, the present application provides a computer program for performing the method of the second aspect when the computer program is executed by a computer.

In a possible design, the programs in the ninth and tenth aspects may be stored in whole or in part on a storage medium packaged with the processor, or in part or in whole on a memory not packaged with the processor.

Drawings

FIG. 1 is a schematic diagram of a WiFi subsystem in the prior art;

fig. 2 is a horizontal cutting plane directional diagram of an omnidirectional antenna in the related art;

fig. 3 is a horizontal cut plane pattern of an antenna as generally seen in the prior art;

FIG. 4 is a flow chart of an embodiment of a method for transmit signal strength compensation according to the present application;

FIG. 5 is a schematic diagram illustrating a departure angle of a transmission signal in the transmission signal strength compensation method according to the present application;

FIG. 6 is a schematic diagram illustrating a calculation of a departure angle of a transmission signal in the transmission signal strength compensation method according to the present application;

FIG. 7 is a diagram illustrating an embodiment of sampling values of a transmission radiation pattern in the transmission signal strength compensation method according to the present application;

FIG. 8 is a schematic diagram of a complete inscribed circle in the method for compensating the transmitted signal strength according to the present application;

FIG. 9 is a flowchart of an embodiment of a received signal strength compensation method of the present application;

fig. 10 is a schematic diagram illustrating the arrival angle of the received signal in the received signal strength compensation method of the present application;

FIG. 11 is a diagram illustrating an embodiment of sampling values of a reception pattern in the received signal strength compensation method according to the present application;

FIG. 12 is a schematic diagram of a complementary inscribed circle in the received signal strength compensation method of the present application;

FIG. 13 is a schematic structural diagram of an embodiment of a transmission signal strength compensation apparatus according to the present application;

fig. 14 is a schematic structural diagram of another embodiment of the transmission signal strength compensation apparatus of the present application;

FIG. 15 is a schematic structural diagram of an embodiment of a received signal strength compensation apparatus according to the present application;

fig. 16 is a schematic structural diagram of another embodiment of the received signal strength compensation apparatus of the present application;

fig. 17 is a schematic structural diagram of an embodiment of a sending device of the present application.

Detailed Description

The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.

In order to solve the problem of directivity of an antenna in the related art, an embodiment of the present application provides a method for compensating a transmission signal strength, where a maximum omnidirectional transmission signal strength is determined according to a transmission radiation pattern of a current antenna, and the transmission signal strength is compensated based on the maximum omnidirectional transmission signal strength in combination with a transmission signal departure angle.

The embodiment of the present application further provides a received signal strength compensation method, which determines a maximum omnidirectional received signal strength according to a receiving directional diagram of a current antenna, and compensates the received signal strength based on the maximum omnidirectional received signal strength and in combination with an angle of arrival of a received signal.

Through the compensation, the accurate signal intensity of the ideal omnidirectional antenna can be achieved on the receiving and transmitting signals for any directional pattern antenna.

Fig. 4 is a flowchart of an embodiment of a transmission signal strength compensation method according to the present application, and as shown in fig. 4, the transmission signal strength compensation method may include:

step 401, obtaining a transmission radiation pattern of a current antenna, and obtaining a departure angle from a transmission signal of a receiving device.

Specifically, The transmission radiation pattern of The current antenna can be obtained by means of laboratory actual measurement of The aerial performance (Over The Air; hereinafter, referred to as OTA) of The antenna, or obtained by sampling by adopting other automatic methods.

The method for compensating the transmission signal strength provided by the embodiment of the application is to actually compensate the radiation distribution of the irregular sphere into a regular sphere so as to achieve the purpose of uniform signal distribution. Of course, if different purposes are required, the radiation signal distribution can be compensated or adjusted to be a sphere with any shape.

Specifically, the transmit signal departure angle is a spatial angle, including azimuth and polar angles. In particular implementations, AoD may be employed

The method obtains the above-mentioned transmission signal departure angle, as shown in fig. 5, fig. 5 is a schematic diagram of the principle of the transmission signal departure angle in the transmission signal strength compensation method of the present application.

Referring to fig. 6, an antenna array is erected at the transmitting device end, the distance between adjacent antennas in the antenna array is d, and the phase difference between signals transmitted by two adjacent antennas and reaching the antennas of the receiving device is d

The signal wavelength is lambda, if the departure angle AoD of the transmitted signal is theta, then

Fig. 6 is a schematic diagram illustrating calculation of a departure angle of a transmission signal in the transmission signal strength compensation method according to the present application.

Step 402, according to the transmission signal departure angle, searching a directional pattern sampling value on the same horizontal plane with the receiving device in the sampling value of the transmission radiation directional pattern.

Specifically, a 360 ° spherical X/Y/Z triaxial sampling, a horizontal direction sampling, or a vertical direction sampling may be performed on a transmission radiation pattern of a current antenna, taking the horizontal direction sampling as an example, the sampling value of the transmission radiation pattern may be as shown in fig. 7, and fig. 7 is a schematic diagram of an embodiment of a sampling value of the transmission radiation pattern in the transmission signal strength compensation method of the present application.

Referring to fig. 7, the sampled values of the transmit radiation pattern may include one or a combination of the following information: the angle, radial distance and signal strength, e.g., [5,90,0, 35], are explained as follows:

r:5 radial distance: 5 m;

90 polar angle (i.e., transmit signal departure angle): 90 degrees;

directive angle (i.e. the phase difference between the signals transmitted by adjacent antennas arriving at the antenna of the receiving device): 0 degree;

RSSI 35 signal strength: -35dBm

Wherein, the ratio of theta,

representing spatial angle information; the radial distance refers to the actual physical distance from the sending device to the receiving device (which can be obtained when testing the OTA); the Received Signal Strength Indication (RSSI), i.e. the Signal Strength, indicates the Strength of the Signal Received by the receiving device.

Further, after obtaining the sampling values of the transmission radiation pattern, according to the departure angle of the transmission signal, looking up the pattern sampling values in the same horizontal plane as the receiving device in the sampling values of the transmission radiation pattern, such as in the vertical horizontal plane:

this step is actually a dimension reduction process to convert the spherical coordinate system into a planar coordinate system.

And step 403, determining the maximum omnidirectional transmission signal strength according to the searched directional diagram sampling value.

Specifically, determining the maximum omni-directional transmission signal strength according to the searched directional pattern sampling value may be: calculating a maximum directional diagram meeting the uniform radiation of the omnidirectional antenna according to the searched directional diagram sampling value; and determining the maximum omnidirectional transmission signal intensity according to the radius value of the maximum directional diagram.

As shown in fig. 8, fig. 8 is a schematic diagram of completing an inscribed circle in the transmitted signal strength compensation method of the present application, and then, radius values [5,90,45,65] of the inscribed circle shown in fig. 8 may be calculated, where the signal strength in the radius values is the maximum omnidirectional transmitted signal strength and is recorded as RSSIr, and in this example, RSSIr is-65 dBm.

And step 404, compensating the intensity of the transmitting signal transmitted to the receiving device according to the maximum omnidirectional transmitting signal intensity and the transmitting signal intensity in each direction in the searched directional diagram sampling value.

Specifically, according to the maximum omnidirectional transmission signal intensity and the transmission signal intensity in each direction in the searched directional pattern sampling value, the compensation for the transmission signal intensity transmitted to the receiving device may be: determining the strength of the sending signal in each direction in the searched directional diagram sampling value; then, according to the maximum omnidirectional transmitting signal intensity and the transmitting signal intensity in each direction, determining the compensating signal intensity in each direction; and according to the compensation signal intensity in each direction, compensating the transmission signal intensity transmitted to the receiving equipment in each direction.

Still taking the pattern samples shown in fig. 8 as an example, the transmit signal strength in each direction in the pattern samples shown in fig. 8, denoted RSSIj, can be determined first, e.g., [5,90,0,55] and [5,90,180,45] for the horizontal direction, so that the signal strength in the 0 degree direction is-55 dBm and the signal strength in the 180 degree direction is-45 dBm.

Specifically, based on the above maximum omni-directional transmission signal strength and the transmission signal strength in each direction, the compensation signal strength in each direction can be determined according to the following formula:

RSSIb＝abs(RSSIj-RSSIr) (1)

in the formula (1), RSSIb is the compensated signal strength in each direction, abs (×) represents the absolute value calculation, RSSIj is the transmitted signal strength in each direction, and RSSIr is the maximum omni-directional transmitted signal strength.

After determining the compensated signal strength in each direction, the strength of the transmission signal transmitted to the receiving device in each direction can be compensated according to the compensated signal strength in each direction, i.e. the strength of the transmission signal transmitted to the receiving device in each direction is decreased RSSIb.

Still taking fig. 8 as an example, for the 0 degree direction, the compensated signal strength is abs (-55- (-65)) ═ 10 dBm; for the 180-degree direction, the compensation signal intensity is abs (-45- (-65)) ═ 20 dBm; thus, it is necessary to reduce the strength of the transmission signal to be transmitted to the receiving device by 10dBm for the 0-degree direction and by 20dBm for the 180-degree direction.

Fig. 9 is a flowchart of an embodiment of a received signal strength compensation method according to the present application, and as shown in fig. 9, the received signal strength compensation method may include:

step 901, obtaining a reception direction diagram of a current antenna, and obtaining a reception signal arrival angle with a sending device.

Specifically, the reception pattern of the current antenna may be obtained by an OTA laboratory actual measurement method, or obtained by sampling by using another automatic method.

The method for compensating the received signal strength provided by the embodiment of the application is to compensate the distribution of the irregular sphere into a regular sphere so as to achieve the purpose of uniform signal distribution. Of course, if different purposes are required, the signal distribution can be compensated or adjusted to be a sphere with any shape.

Specifically, the received signal arrival angle is a spatial angle, including azimuth and polar angles. In particular implementations, AoA may be employed

The method obtains the arrival angle of the received signal, as shown in fig. 10, fig. 10 is a schematic diagram illustrating the arrival angle of the received signal in the received signal strength compensation method of the present application.

Similar to the departure angle AoD of the transmitted signal, the receiving device end is provided with an antenna array, the distance between adjacent antennas in the antenna array is d, and the phase difference between signals received by two adjacent antennas is d

The wavelength of the signal is lambda, if the arrival angle AoA of the received signal is theta, then

And step 902, searching a directional pattern sampling value which is in the same horizontal plane with the sending device in the receiving directional pattern sampling value according to the arrival angle of the receiving signal.

Specifically, a 360 ° spherical X/Y/Z triaxial sampling, a horizontal direction sampling, or a vertical direction sampling may be performed on a receiving directional diagram of a current antenna, taking the horizontal direction sampling as an example, the sampling value of the transmitting radiation directional diagram may be as shown in fig. 11, where fig. 11 is a schematic diagram of an embodiment of a sampling value of a receiving directional diagram in the received signal strength compensation method of the present application.

Referring to fig. 11, the sampling values of the reception pattern may include one or a combination of the following information: the angle, radial distance and signal strength, e.g., [5,90,0, 35], are explained as follows:

r:5 radial distance: 5 m;

90 polar angle (i.e., angle of arrival of received signal): 90 degrees;

azimuth (i.e., the phase difference between signals received by two adjacent antennas): 0 degree;

RSSI 35 signal strength: -35dBm

Wherein, the ratio of theta,

representing spatial angle information; the radial distance refers to the actual physical distance from the sending device to the receiving device (which can be obtained when testing the OTA); RSSI, i.e., signal strength, represents the strength of the signal transmitted by the transmitting device.

Further, after obtaining the sampling value of the reception pattern, according to the arrival angle of the reception signal, the sampling value of the pattern in the same horizontal plane as the transmission device may be searched in the sampling value of the reception pattern, for example, in a vertical horizontal plane:

Step 903, determining the maximum omnidirectional received signal strength according to the searched directional diagram sampling value.

Specifically, determining the maximum omni-directional received signal strength according to the searched directional pattern sampling value may be: calculating a maximum directional diagram meeting the uniform radiation of the omnidirectional antenna according to the searched directional diagram sampling value; and determining the maximum omnidirectional received signal strength according to the radius value of the maximum directional diagram.

Fig. 12 is a schematic diagram of completing an inscribed circle in the received signal strength compensation method of the present application, and then, radius values [5,90,45,65] of the inscribed circle shown in fig. 12 may be calculated, where the signal strength in the radius values is the maximum omnidirectional received signal strength and is denoted as RSSIrr, and in this example, RSSIrr is-65 dBm.

And 904, compensating the received signal strength from the sending equipment according to the maximum omnidirectional received signal strength and the received signal strength of each direction in the searched directional diagram sampling value.

Specifically, according to the maximum omnidirectional received signal strength and the received signal strength in each direction in the searched directional pattern sample value, the compensating the received signal strength from the transmitting device may be: determining the received signal strength in each direction in the searched directional diagram sampling value; determining the compensation signal intensity in each direction according to the maximum omnidirectional received signal intensity and the received signal intensity in each direction; the received signal strength from the transmitting device in each direction is compensated for based on the compensated signal strength in each direction.

Still taking the pattern samples shown in fig. 12 as an example, the received signal strength in each direction in the pattern samples shown in fig. 12 may be determined first, denoted RSSIjr, e.g., [5,90,0,55] and [5,90,180,45] for the horizontal direction, so that the signal strength in the 0 degree direction is-55 dBm and the signal strength in the 180 degree direction is-45 dBm.

Specifically, based on the above maximum omni-directional received signal strength and the received signal strength in each direction, the compensated signal strength in each direction can be determined according to the following formula:

RSSIbr＝abs(RSSIjr-RSSIrr) (2)

in equation (2), RSSIbr is the compensated signal strength in each direction, abs (×) represents the absolute value calculation, RSSIjr is the received signal strength in each direction, and RSSIrr is the maximum omni-directional received signal strength.

After determining the compensated signal strength in each direction, the received signal strength from the transmitting device in each direction can be compensated, i.e. the received signal strength from the transmitting device is decreased by RSSIbr in each direction, according to the compensated signal strength in each direction.

Still taking fig. 12 as an example, for the 0 degree direction, the compensated signal strength is abs (-55- (-65)) ═ 10 dBm; for the 180-degree direction, the compensation signal intensity is abs (-45- (-65)) ═ 20 dBm; thus, it is necessary to reduce the received signal strength from the transmitting device by 10dBm for the 0-degree direction and by 20dBm for the 180-degree direction.

It is to be understood that some or all of the steps or operations in the above-described embodiments are merely examples, and other operations or variations of various operations may be performed by the embodiments of the present application. Further, the various steps may be performed in a different order presented in the above-described embodiments, and it is possible that not all of the operations in the above-described embodiments are performed.

Fig. 13 is a schematic structural diagram of an embodiment of the transmission signal strength compensation apparatus according to the present application, and as shown in fig. 13, the transmission signal strength compensation apparatus 130 may include: an obtaining module 1301, a searching module 1302, a determining module 1303 and a compensating module 1304; it should be understood that the transmission signal strength compensating means 130 may correspond to the transmitting apparatus 900 shown in fig. 17. The functions of the obtaining module 1301, the searching module 1302, the determining module 1303 and the compensating module 1304 may be implemented by the processor 910 in the transmitting apparatus 900 shown in fig. 17.

The obtaining module 1301 is configured to obtain a transmission radiation pattern of a current antenna, and obtain a departure angle of a transmission signal from a receiving device;

a searching module 1302, configured to search, according to the transmit signal departure angle, a directional diagram sample value in the same horizontal plane as the receiving apparatus from the transmit radiation directional diagram sample value;

a determining module 1303, configured to determine the maximum omnidirectional transmission signal strength according to the directional diagram sampling value found by the searching module 1302;

a compensation module 1304, configured to compensate for the strength of the transmission signal transmitted to the receiving device according to the maximum omnidirectional transmission signal strength determined by the determination module 1303 and the transmission signal strength in each direction in the directional pattern sample value found by the search module 1302.

The transmitted signal strength compensation apparatus provided in the embodiment shown in fig. 13 may be used to implement the technical solution of the method embodiment shown in fig. 4 of the present application, and the implementation principle and technical effects of the technical solution may further refer to the related description in the method embodiment.

Fig. 14 is a schematic structural diagram of another embodiment of the transmission signal strength compensation apparatus of the present application, and compared with the transmission signal strength compensation apparatus 130 shown in fig. 13, the difference is that in the transmission signal strength compensation apparatus 140 shown in fig. 14, the determining module 1303 may include: a calculation submodule 13031 and a first intensity determination submodule 13032;

the calculating submodule 13031 is configured to calculate a maximum directional diagram meeting uniform radiation of the omnidirectional antenna according to the directional diagram sampling value found by the finding module 1302;

the first strength determining submodule 13032 is configured to determine the maximum omni-directional transmission signal strength according to the radius value of the maximum directional diagram.

In one possible implementation manner, the compensation module 1304 may include: a second intensity determination sub-module 13041 and an intensity compensation sub-module 13042;

a second strength determining submodule 13041 configured to determine the strength of the transmission signal in each direction in the searched directional diagram sample value; determining the compensation signal intensity in each direction according to the maximum omnidirectional transmission signal intensity and the transmission signal intensity in each direction;

an intensity compensation submodule 13042 is configured to compensate the strength of the transmission signal transmitted to the receiving device in each direction according to the compensated signal strength in each direction.

It should be understood that the transmission signal strength compensating means 140 may correspond to the transmitting apparatus 900 shown in fig. 17. The functions of the obtaining module 1301, the searching module 1302, the determining module 1303, and the compensating module 1304, and the functions of their sub-modules may be implemented by the processor 910 in the transmitting apparatus 900 shown in fig. 17.

The transmitted signal strength compensation apparatus 140 provided in the embodiment shown in fig. 14 can be used to implement the technical solution of the method embodiment shown in fig. 4 of the present application, and the implementation principle and technical effects thereof can be further referred to the related description in the method embodiment.

Fig. 15 is a schematic structural diagram of an embodiment of the received signal strength compensation apparatus according to the present invention, and as shown in fig. 15, the received signal strength compensation apparatus 150 may include: an acquisition module 1501, a search module 1502, a determination module 1503 and a compensation module 1504;

the obtaining module 1501 is configured to obtain a reception direction diagram of a current antenna, and obtain a received signal arrival angle with a sending device;

a searching module 1502, configured to search, according to the arrival angle of the received signal, a directional pattern sampling value that is in the same horizontal plane as the transmitting device from among the sampling values of the receiving directional pattern;

a determining module 1503, configured to determine the maximum omni-directional received signal strength according to the directional diagram sampling value found by the searching module 1502;

a compensation module 1504, configured to compensate the received signal strength from the sending device according to the maximum omnidirectional received signal strength determined by the determination module 1503 and the received signal strength in each direction in the directional pattern sample value searched by the search module 1502.

The received signal strength compensation apparatus provided in the embodiment shown in fig. 15 may be used to implement the technical solution of the method embodiment shown in fig. 9 of the present application, and the implementation principle and technical effects of the technical solution may further refer to the related description in the method embodiment.

Fig. 16 is a schematic structural diagram of another embodiment of the received signal strength compensation apparatus of the present application, which is different from the received signal strength compensation apparatus 150 shown in fig. 15 in that, in the received signal strength compensation apparatus 160 shown in fig. 16, the determining module 1503 may include: a calculation submodule 15031 and a first intensity determination submodule 15032;

a calculating submodule 15031, configured to calculate a maximum directional pattern meeting uniform radiation of the omnidirectional antenna according to the directional pattern sampling value found by the searching module 1502;

the first strength determining submodule 15032 is configured to determine the maximum omni-directional received signal strength according to the radius value of the maximum directional diagram.

In one possible implementation manner, the compensation module 1504 may include: a second intensity determination sub-module 15041 and an intensity compensation sub-module 15042;

a second strength determining submodule 15041 configured to determine a received signal strength in each direction in the searched directional pattern sample value; and determining a compensation signal strength in each direction according to the maximum omnidirectional received signal strength and the received signal strength in each direction;

an intensity compensation sub-module 15042, configured to compensate the received signal intensity from the transmitting device in each direction according to the compensated signal intensity in each direction.

The received signal strength compensation apparatus 160 provided in the embodiment shown in fig. 16 can be used to implement the technical solution of the method embodiment shown in fig. 9 of the present application, and the implementation principle and technical effects thereof can be further referred to the related description in the method embodiment.

It should be understood that the division of the modules of the apparatuses shown in fig. 13 to 16 is merely a logical division, and the actual implementation may be wholly or partially integrated into one physical entity or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling by the processing element in software, and part of the modules can be realized in the form of hardware. For example, the compensation module may be a separate processing element, or may be integrated into a chip of the device. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), one or more microprocessors (DSPs), one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, these modules may be integrated together and implemented in the form of a System-On-a-Chip (SOC).

Fig. 17 is a schematic structural diagram of an embodiment of a sending device in the present application, and as shown in fig. 17, the sending device may include: an antenna; one or more processors; a memory; a plurality of application programs; and one or more computer programs.

The sending equipment can be mobile terminals (mobile phones), smart screens, unmanned aerial vehicles, Intelligent Connected Vehicles (ICV), smart (automobile) vehicles (smart/Intelligent Vehicle) or Vehicle-mounted equipment and the like.

Wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions which, when executed by the apparatus, cause the apparatus to perform the steps of:

The transmitting device shown in fig. 17 may be a terminal device or a circuit device built in the terminal device. The apparatus may be used to perform the functions/steps of the method provided by the embodiment of fig. 4 of the present application.

As shown in fig. 17, the transmitting device 900 includes a processor 910 and a transceiver 920. Optionally, the transmitting device 900 may also include a memory 930. The processor 910, the transceiver 920 and the memory 930 may communicate with each other via internal connection paths to transmit control and/or data signals, the memory 930 may be used for storing a computer program, and the processor 910 may be used for calling and running the computer program from the memory 930.

The memory 930 may be a read-only memory (ROM), other types of static storage devices that can store static information and instructions, a Random Access Memory (RAM), or other types of dynamic storage devices that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), a magnetic disc storage medium or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, etc.

Optionally, the transmitting device 900 may further include an antenna 940 for transmitting the wireless signal output by the transceiver 920.

The processor 910 and the memory 930 may be combined into a single processing device, or more generally, separate components, and the processor 910 is configured to execute the program code stored in the memory 930 to implement the functions described above. In particular implementations, the memory 930 may be integrated with the processor 910 or may be separate from the processor 910.

In addition, in order to make the functions of the transmitting apparatus 900 more complete, the transmitting apparatus 900 may further include one or more of an input unit 960, a display unit 970, an audio circuit 980 which may further include a speaker 982, a microphone 984, and the like, a camera 990, a sensor 901, and the like. The display unit 970 may include a display screen, and the display screen may include a display screen of a vehicle-mounted computer (Mobile Data Center).

Optionally, the transmitting device 900 may further include a power supply 950 for supplying power to various devices or circuits in the terminal device.

It should be appreciated that the transmitting device 900 shown in fig. 17 is capable of implementing the processes of the method provided by the embodiment shown in fig. 4 of the present application. The operations and/or functions of the respective modules in the sending device 900 are respectively for implementing the corresponding flows in the above-described method embodiments. Reference may be made specifically to the description of the embodiment of the method illustrated in fig. 4 of the present application, and a detailed description is appropriately omitted herein to avoid redundancy.

It should be understood that the processor 910 in the sending device 900 shown in fig. 17 may be a system on chip SOC, and the processor 910 may include a Central Processing Unit (CPU), and may further include other types of processors, such as: an image Processing Unit (hereinafter, referred to as GPU), and the like.

In summary, various portions of the processors or processing units within the processor 910 may cooperate to implement the foregoing method flows, and corresponding software programs for the various portions of the processors or processing units may be stored in the memory 930.

An embodiment of the present application further provides a receiving device, including: an antenna; one or more processors; a memory; a plurality of application programs; and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions which, when executed by the apparatus, cause the apparatus to perform the steps of:

The receiving device provided in the embodiment of the present application may be implemented by using the same structure as the transmitting device shown in fig. 17, except that in the receiving device, the antenna 940 is used to receive a wireless signal and transmit the received wireless signal to the transceiver 920.

The application also provides a sending device, which includes a storage medium and a central processing unit, where the storage medium may be a non-volatile storage medium, and a computer executable program is stored in the storage medium, and the central processing unit is connected to the non-volatile storage medium and executes the computer executable program to implement the method provided by the embodiment shown in fig. 4 in the application.

The application also provides a receiving device, which includes a storage medium and a central processing unit, where the storage medium may be a non-volatile storage medium, and a computer executable program is stored in the storage medium, and the central processing unit is connected to the non-volatile storage medium and executes the computer executable program to implement the method provided by the embodiment shown in fig. 9 in the application.

In the above embodiments, the processors may include, for example, a CPU, a DSP, a microcontroller, or a digital Signal processor, and may further include a GPU, an embedded Neural Network Processor (NPU), and an Image Signal Processing (ISP), and the processors may further include necessary hardware accelerators or logic Processing hardware circuits, such as an ASIC, or one or more integrated circuits for controlling the execution of the program according to the technical solution of the present application. Further, the processor may have the functionality to operate one or more software programs, which may be stored in the storage medium.

Embodiments of the present application further provide a computer-readable storage medium, in which a computer program is stored, and when the computer program runs on a computer, the computer is caused to execute the method provided by the embodiment shown in fig. 4 of the present application.

Embodiments of the present application further provide a computer-readable storage medium, in which a computer program is stored, and when the computer program runs on a computer, the computer is caused to execute the method provided by the embodiment shown in fig. 9 of the present application.

Embodiments of the present application also provide a computer program product, which includes a computer program, when the computer program runs on a computer, causing the computer to execute the method provided by the embodiment shown in fig. 4 of the present application.

Embodiments of the present application also provide a computer program product, which includes a computer program, when the computer program runs on a computer, causing the computer to execute the method provided by the embodiment shown in fig. 9 of the present application.

In the embodiments of the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, and means that there may be three relationships, for example, a and/or B, and may mean that a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" and similar expressions refer to any combination of these items, including any combination of singular or plural items. For example, at least one of a, b, and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, wherein a, b and c can be single or multiple.

Those of ordinary skill in the art will appreciate that the various elements and algorithm steps described in connection with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or combinations of electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, any function, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present application, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered by the protection scope of the present application. The protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for transmit signal strength compensation, comprising:

2. The method of claim 1, wherein determining the maximum omni-directional transmit signal strength based on the located pattern sample value comprises:

3. The method according to claim 1 or 2, wherein the compensating the transmission signal strength transmitted to the receiving device according to the maximum omni-directional transmission signal strength and the transmission signal strength of each direction in the searched directional pattern sample value comprises:

4. A method for received signal strength compensation, comprising:

5. The method of claim 4, wherein determining the maximum omni-directional received signal strength from the located pattern sample values comprises:

6. The method of claim 4 or 5, wherein the compensating the received signal strength from the transmitting device according to the maximum omni-directional received signal strength and the received signal strength of each direction in the searched directional pattern sample value comprises:

7. A transmission signal strength compensation apparatus, comprising:

8. The apparatus of claim 7, wherein the determining module comprises:

9. The apparatus of claim 7 or 8, wherein the compensation module comprises:

10. A received signal strength compensation apparatus, comprising:

11. The apparatus of claim 10, wherein the determining module comprises:

12. The apparatus of claim 10 or 11, wherein the compensation module comprises:

13. A transmitting device, comprising:

14. The transmitting device of claim 13, wherein the instructions, when executed by the device, cause the device to perform the step of determining a maximum omni-directional transmit signal strength from the found pattern sample values comprises:

15. The transmitting device of claim 13 or 14, wherein the instructions, when executed by the device, cause the device to perform the step of compensating for the transmitted signal strength to the receiving device based on the maximum omni-directional transmitted signal strength and the transmitted signal strength for each of the found directional pattern samples comprises:

16. A receiving device, comprising:

17. The receiving device of claim 16, wherein the instructions, when executed by the device, cause the device to perform the step of determining a maximum omni-directional received signal strength from the found pattern sample values comprises:

18. The receiving device of claim 16 or 17, wherein the instructions, when executed by the device, cause the device to perform the step of compensating the received signal strength from the transmitting device based on the maximum omni-directional received signal strength and the received signal strength of each of the found directional pattern samples comprises:

19. A computer-readable storage medium, in which a computer program is stored which, when run on a computer, causes the computer to carry out the method according to any one of claims 1-3.

20. A computer-readable storage medium, in which a computer program is stored which, when run on a computer, causes the computer to carry out the method according to any one of claims 4-6.