CN116506030A

CN116506030A - Method and device for evaluating performance of terminal equipment

Info

Publication number: CN116506030A
Application number: CN202210064817.XA
Authority: CN
Inventors: 刘启飞
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2023-07-28

Abstract

A method and a device for evaluating the performance of terminal equipment are provided, wherein the method comprises the following steps: obtaining M first radiation powers of the terminal equipment in a first direction, wherein each first radiation power in the M first radiation powers is measured when the radio frequency branches are in a transmitting state at the same time, M signal phase differences between the M first radiation powers and the radio frequency branches are in one-to-one correspondence, any two signal phase differences in the M signal phase differences are different, and M is a positive integer; determining a first target radiation power of the terminal equipment in the first direction according to the M first radiation powers; and evaluating the radiation performance of the terminal equipment according to the first target radiation power. The method in the embodiment of the invention can accurately evaluate the radiation performance of the terminal equipment.

Description

Method and device for evaluating performance of terminal equipment

Technical Field

The present application relates to the field of communications, and more particularly, to a method and apparatus for evaluating performance of a terminal device.

Background

With the development of communication technology, some communication systems already support terminal devices that transmit simultaneously by multiple radio frequency branches, so as to improve transmission efficiency. However, an antenna air interface test (OTA) for such a terminal device, particularly a test method of radiation performance, is still blank.

Disclosure of Invention

The application provides a method and a device for evaluating the performance of terminal equipment, which can accurately evaluate the radiation performance of the terminal equipment.

In a first aspect, a method for evaluating performance of a terminal device, the terminal device including a plurality of radio frequency branches, the method comprising: obtaining M first radiation powers of the terminal equipment in a first direction, wherein each first radiation power in the M first radiation powers is measured when the radio frequency branches are in a transmitting state at the same time, M signal phase differences between the M first radiation powers and the radio frequency branches are in one-to-one correspondence, any two signal phase differences in the M signal phase differences are different, and M is a positive integer; determining a first target radiation power of the terminal equipment in the first direction according to the M first radiation powers; and evaluating the radiation performance of the terminal equipment according to the first target radiation power.

In a second aspect, there is provided an apparatus for evaluating performance of a terminal device, the terminal device comprising a plurality of radio frequency branches, the apparatus comprising: the acquisition unit is used for acquiring M first radiation powers of the terminal equipment in a first direction, each first radiation power in the M first radiation powers is measured when the radio frequency branches are in a transmitting state at the same time, the M first radiation powers are in one-to-one correspondence with M signal phase differences among the radio frequency branches, any two signal phase differences in the M signal phase differences are different, and M is a positive integer; a processing unit, configured to determine a first target radiation power of the terminal device in the first direction according to the M first radiation powers; the processing unit is further configured to evaluate a radiation performance of the terminal device according to the first target radiation power.

In a third aspect, there is provided an apparatus for evaluating the performance of a terminal device, comprising a memory for storing a program, a transceiver for receiving and transmitting wireless signals, and a processor for invoking the program in the memory to perform the method according to the first aspect.

In a fourth aspect, a chip is provided, comprising a processor for calling a program from a memory, causing a device on which the chip is mounted to perform the method of the first aspect.

In a fifth aspect, there is provided a computer-readable storage medium having stored thereon a program that causes a computer to execute the method of the first aspect.

In a sixth aspect, there is provided a computer program product comprising a program for causing a computer to perform the method of the first aspect.

In a seventh aspect, there is provided a computer program for causing a computer to perform the method of the first aspect.

In the embodiment of the application, a plurality of different first radiation powers of the terminal equipment in the first direction are obtained, and the first target radiation power of the terminal equipment in the first direction is determined according to the plurality of different first radiation powers, so that the first target radiation power is closer to a radiation index of the terminal equipment in the current network use condition, and at the moment, the radiation performance of the terminal equipment can be accurately estimated according to the first target radiation power.

Drawings

Fig. 1 is an exemplary diagram of a wireless communication system to which embodiments of the present application apply.

FIG. 2 is an exemplary diagram of a test system to which embodiments of the present application apply.

Fig. 3 is a schematic flow chart of a method of evaluating the performance of a terminal device in an embodiment of the present application.

Fig. 4 is a schematic flow chart of a method of evaluating the performance of a terminal device in another embodiment of the present application.

Fig. 5 is a schematic flow chart of a method of evaluating the performance of a terminal device in a further embodiment of the present application.

Fig. 6 is a schematic structural diagram of an apparatus for evaluating performance of a terminal device in an embodiment of the present application.

Fig. 7 is a schematic structural view of an apparatus in an embodiment of the present application.

Detailed Description

The technical solutions in the present application will be described below with reference to the accompanying drawings.

Fig. 1 is a wireless communication system 100 to which embodiments of the present application apply. The wireless communication system 100 may include a network device 110 and a User Equipment (UE) 120. Network device 110 may communicate with UE 120. Network device 110 may provide communication coverage for a particular geographic area and may communicate with UEs 120 located within that coverage area. UE120 may access a network (e.g., a wireless network) through network device 110.

Fig. 1 illustrates one network device and two UEs by way of example, and the wireless communication system 100 may alternatively include multiple network devices and may include other numbers of terminal devices within the coverage area of each network device, which is not limited in this embodiment of the present application. Optionally, the wireless communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the technical solution of the embodiments of the present application may be applied to various communication systems, for example: fifth generation (5th generation,5G) systems or New Radio (NR), long term evolution (long term evolution, LTE) systems, LTE frequency division duplex (frequency division duplex, FDD) systems, LTE time division duplex (time division duplex, TDD), and the like. The technical scheme provided by the application can also be applied to future communication systems, such as a sixth generation mobile communication system, a satellite communication system and the like.

The UE in the embodiments of the present application may also be referred to as a Terminal device, an access Terminal, a subscriber unit, a subscriber station, a Mobile Station (MS), a Mobile Terminal (MT), a remote station, a remote Terminal, a mobile device, a user Terminal, a wireless communication device, a user agent, or a user equipment. The UE in the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, and may be used to connect people, things, and machines, for example, a handheld device with a wireless connection function, an in-vehicle device, and so on. The UE in the embodiments of the present application may be a mobile phone (mobile phone), a tablet (Pad), a notebook, a palm, a mobile internet device (mobile internet device, MID), a wearable device, a Virtual Reality (VR) device, an augmented reality (augmented reality, AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (self driving), a wireless terminal in teleoperation (remote medical surgery), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and the like. Alternatively, the UE may be used to act as a base station. For example, the UEs may act as scheduling entities that provide side-uplink signals between UEs in V2X or D2D, etc. For example, a cellular telephone and a car communicate with each other using side-link signals. Communication between the cellular telephone and the smart home device is accomplished without relaying communication signals through the base station.

The network device in the embodiments of the present application may be a device for communicating with the UE, which may also be referred to as an access network device or a radio access network device, e.g. the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (radio access network, RAN) node (or device) that accesses the UE to the wireless network. The base station may broadly cover or replace various names in the following, such as: a node B (NodeB), an evolved NodeB (eNB), a next generation NodeB (gNB), a relay station, an access point, a transmission point (transmitting and receiving point, TRP), a transmission point (transmitting point, TP), a master MeNB, a secondary SeNB, a multi-mode wireless (MSR) node, a home base station, a network controller, an access node, a wireless node, an Access Point (AP), a transmission node, a transceiving node, a baseband unit (BBU), a remote radio unit (Remote Radio Unit, RRU), an active antenna unit (active antenna unit, AAU), a radio head (remote radio head, RRH), a Central Unit (CU), a Distributed Unit (DU), a positioning node, and the like. The base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof.

In some embodiments, the network device may be fixed or mobile. For example, a helicopter or drone may be configured to act as a mobile network device, one or more cells may be moved according to the location of the mobile network device. In other examples, a helicopter or drone may be configured to function as a device to communicate with another network device. In some embodiments, a network device may refer to a CU or a DU, or the network device may include a CU and a DU, or the network device may also include an AAU.

It should be appreciated that the network device may be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; the device can be deployed on the water surface; but also on aerial planes, balloons and satellites. The network device and the scene in the embodiment of the application are not limited in the embodiment of the application.

It should also be understood that all or part of the functions of the network device and UE in this application may also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (e.g., a cloud platform).

Along with the development of communication technology, a plurality of radio frequency branches of the multi-terminal equipment can transmit wireless signals at the same time, so that the transmission efficiency of the communication system can be effectively improved.

After the design and production of the terminal device are completed, it is generally necessary to test the terminal device to verify whether the terminal device meets the related certification requirements and various index requirements of the manufacturer. For example, an Over The Air (OTA) test may be performed on the radiation performance of the terminal device to verify whether the radiation performance of the terminal device meets the requirement.

Currently, for single-shot terminal devices, the total radiated power (total tadiatedpower, TRP) can be used to evaluate the radiation performance of the single-shot terminal device. For example, the radiation power of the terminal device in various aspects may be collected, and then the total radiation power of the terminal device may be calculated based on the following formula:

wherein EiRP _theta (θ _i ，φ _j ) Expressed in the direction (theta) _i ，φ _j ) On the equivalent omnidirectional radiated power (equivalent isotropic radiated power, eiRP) measurements in milliwatts (mW) in the theta polarization direction; eiRP _phi (θ _i ，φ _j ) Expressed in the direction (theta) _i ，φ _j ) The EiRP measurement result in the phi polarization direction is given in mW; θ _i Indicating direction (theta) _i ，φ _j ) Included angle phi with positive direction of z-axis in spherical coordinate system _j Indicating direction (theta) _i ，φ _j ) The included angle between the projection of the xoy plane and the positive direction of the x axis in the spherical coordinate system, and the theta polarization direction and phi polarization direction are the polarization directions of electromagnetic waves radiated by the antenna; wherein M, N, i and j are integers.

However, the radiation power of the multi-shot terminal device comes from a plurality of different radio frequency branches, and various measurement methods of the single-shot terminal device cannot accurately evaluate the performance of the multi-shot terminal device. At present, OTA tests for radiation performance of multiple terminal devices are still blank. The applicant proposes several possible test schemes based on the existing test method of the single-shot terminal device.

In one possible solution, the multiple terminal device may be configured in a single-shot mode, the TRP of each radio frequency branch is measured separately, the TRPs of the multiple radio frequency branches are added, and the final result is taken as the total TRP of the terminal device. However, this way of separately measuring the TRP re-summation of the radio frequency branches, respectively, is obviously inconsistent with the actual operating state of the multi-terminal device, and the total TRP of the measured terminal device may be overestimated (i.e. the total TRP of the obtained terminal device is larger than the actual TRP of the multi-terminal device).

In another possible solution, the multi-mode terminal device may be configured in a multi-mode, where the measured EiRP is the sum of the powers of the two radio frequency branches, and the TRP is calculated by using the measured EiRP. One approach to configuring the multiple mode is to configure the multiple terminal device with a transmit precoding matrix indicator (transmitted precoding matrix indicator, TPMI).

For example, a precoding matrix (precoding matrix) corresponding to a certain index (index) value may be configured for the multi-terminal device through TPMI. However, in different radiation directions, the phase differences between the multiple radio frequency branches of the terminal device may be different, and this manner of using a fixed index value (the phase differences between the multiple radio frequency branches corresponding to the fixed index value are different) obviously also does not conform to the operating state of the terminal device in the current network, and the measured total TRP of the terminal device may be underestimated (i.e. the obtained total TRP of the terminal device is smaller than the actual TRP of the multiple terminal device).

Therefore, how to accurately measure the TRP of a multi-terminal device to accurately evaluate the radiation performance of the terminal device is a technical problem to be solved.

In order to solve one or more of the above technical problems, the present application proposes a method and an apparatus for evaluating performance of a terminal device, which can accurately evaluate radiation performance of the terminal device.

Embodiments of the present application are illustrated in detail below in conjunction with fig. 2-5.

FIG. 2 is an exemplary diagram of a test system to which embodiments of the present application apply. As shown in fig. 2, the test system may include a terminal device 210, a network device 220, and means 230 for evaluating the performance of the terminal device.

The terminal device 210 may be a multiple terminal device, and multiple radio frequency branches of the terminal device 210 may transmit wireless signals simultaneously. Alternatively, the plurality of radio frequency branches may include greater than or equal to two radio frequency branches.

The network device 220 may configure parameters for the terminal device 210 to change the phase difference between the multiple radio frequency branches of the terminal device 210.

The means 230 for evaluating the performance of the terminal device may measure a performance indicator of the terminal device 210. For example, the means 230 for evaluating the performance of the terminal device may measure the radiation performance of the terminal device 210. The means 230 for evaluating the performance of the terminal device may perform the methods in the embodiments of fig. 3 to 5 described below.

Fig. 3 is a schematic flow chart of a method of evaluating the performance of a terminal device according to an embodiment of the present application. The method 300 shown in fig. 3 may include steps S310, S320 and S330, which are specifically as follows:

s310, M first radiation powers of the terminal equipment in a first direction are acquired.

The terminal device may be a multi-cast terminal device. Optionally, the terminal device may support uplink transmit diversity (transmit diversity). For example, the terminal device may be in a multiple-input multiple-output (multi in multi out, MIMO) multiple-antenna port transmitting state, and multiple radio frequency branches of the terminal device may simultaneously transmit the same wireless signal, which may increase reliability of data transmission.

Of course, multiple radio frequency branches of the terminal device may also transmit different wireless signals at the same time, which is not limited in the embodiment of the present application.

Each of the M first radiant powers may be measured when a plurality of radio frequency branches are simultaneously in a transmitting state. In other words, the M first radiation powers are measured when the terminal device is in the multiple mode. Alternatively, the first radiated power may refer to an equivalent omni-directional radiated power (equivalent isotropic radiated power, eiRP) of the terminal device in the first direction.

The M first radiation powers may correspond to M signal phase differences between the plurality of radio frequency branches one to one, any two of the M signal phase differences being different, M being a positive integer. That is, the phase differences between the radio frequency branches corresponding to the M first radiation powers may be different. For example, according to the configuration of the network device, the multiple radio frequency branches of the terminal device may be set to M different phase differences, and EiRP corresponding to the M phase differences may be measured respectively. At this time, the measured M EiRP measurements may be regarded as M first radiant powers.

The M signal phase differences may correspond one-to-one to the M index values. Alternatively, the M index values may be index values of M different precoding matrices. For example, the network device may configure the terminal device with M different index values, and accordingly, the terminal device may set the multiple radio frequency branches to M different phase differences based on the M different index values, and further, may measure the M different phase differences to obtain M first radiation powers respectively. Of course, the M signal phase differences may be configured for the terminal device in other manners, which is not limited in the embodiment of the present application.

In the embodiment of the present application, a plurality of radiation powers of a terminal device in a certain signal radiation direction may be obtained by a plurality of methods, which will be described in detail in the following embodiments with reference to fig. 4 and 5.

S320, determining a first target radiation power of the terminal equipment in a first direction according to the M first radiation powers.

Alternatively, the radiation power most conforming to the radiation performance of the terminal device among the M first radiation powers may be determined as the first target radiation power of the terminal device in the first direction.

Alternatively, for a terminal device (in multiple mode), the measured radiation power may be smaller than the actual radiation power of the terminal device, and a relatively larger radiation power of the M first radiation powers may be determined as the first target radiation power, so as to accurately evaluate the radiation performance of the terminal device.

In some possible implementations, the maximum of the M first radiant powers may be taken as the first target radiant power.

S330, the radiation performance of the terminal equipment is evaluated according to the first target radiation power.

Alternatively, the radiation performance of the terminal device in the first direction may be evaluated based on the first target radiation power.

Of course, in the embodiment of the present application, N second radiation powers of the terminal device in the second direction may also be acquired. Further, a second target radiation power of the terminal device in the second direction may be determined from the N second radiation powers. Further, the radiation performance of the terminal device may be evaluated based on the first target radiation power and the second target radiation power.

Each of the N second radiation powers may be measured when the plurality of radio frequency branches are in the transmitting state at the same time. The N second radiation powers may correspond to N signal phase differences between the plurality of radio frequency branches one to one, where any two of the N signal phase differences are different. N is a positive integer, and N can be greater than, less than or equal to M.

Alternatively, in the embodiment of the present application, a plurality of signal radiation directions of the terminal device may be divided based on a spherical coordinate system, target radiation powers of the terminal device in the plurality of signal radiation directions may be obtained respectively, and the total radiation performance of the terminal device may be estimated based on the target radiation powers in the plurality of signal radiation directions.

Alternatively, the plurality of signal radiation directions may include a first direction and a second direction. Alternatively, the angular difference between the second direction and the first direction may satisfy a preset relationship.

The first angle may be an angle between the first direction and the positive z-axis direction in the spherical coordinate system, the second angle may be an angle between the projection of the first direction on the xoy plane in the spherical coordinate system and the positive x-axis direction, the third angle may be an angle between the second direction and the positive z-axis direction in the spherical coordinate system, and the fourth angle may be an angle between the projection of the second direction on the xoy plane in the spherical coordinate system and the positive x-axis direction. At this time, the angle difference between the second direction and the first direction satisfying the preset relationship may include: the angle difference between the first angle and the third angle is a preset value, and the second angle is the same as the fourth angle; or, the angle difference between the second angle and the fourth angle is a preset value, and the first angle is the same as the third angle. Alternatively, the preset value may be 15 degrees or 30 degrees.

Alternatively, after acquiring the target radiation powers of the terminal device in the plurality of signal radiation directions, the total radiation power of the terminal device may be determined based on the target radiation powers in the plurality of directions, and the total radiation performance of the terminal device may be estimated based on the total radiation power.

In the embodiment of the application, a plurality of different first radiation powers of the terminal equipment in the first direction are obtained, and the first target radiation power of the terminal equipment in the first direction is determined according to the plurality of different first radiation powers, so that the first target radiation power is closer to the radiation index of the terminal equipment in the current network use condition, and at the moment, the radiation performance of the terminal equipment can be accurately estimated according to the first target radiation power.

In the embodiment of the present application, a plurality of radiation powers of a terminal device in a certain signal radiation direction may be obtained by a plurality of methods, which are specifically as follows:

the method comprises the following steps:

the M signal phase differences may correspond to the M index values one to one, and the M index values may be traversed to sequentially determine M first radiation powers corresponding to the M signal phase differences.

For example, the M index values may be traversed in order of increasing M index values, with M first radiant powers being determined in turn. Alternatively, the M index values may be traversed in descending order of the M index values, and the M first radiation powers may be sequentially determined.

Alternatively, the M index values may be index values of M different precoding matrices.

In order to facilitate understanding, in the following embodiments, a method for acquiring multiple radiation powers is described in detail by taking multiple terminal devices as dual-transmission terminal devices, and taking M signal phase differences as multiple phase differences corresponding to multiple index values of a precoding matrix as an example.

The following describes the correspondence between the phase difference between two radio frequency branches and different index values with reference to table 1.

TABLE 1 precoding matrix and corresponding index values

The precoding matrices corresponding to indexes 0 and 1 in table 1 are used for configuring the single-shot terminal equipment, which is not described in the embodiment of the present application.

As shown in table 1, the precoding matrix corresponding to index 2 isIndicating that the phase difference between the two radio frequency branches is 0 degrees; the precoding matrix corresponding to index 3 is +.>Indicating that the phase difference between the two radio frequency branches is 180 degrees; the precoding matrix corresponding to index 2 is +.>Indicating a phase difference of 90 degrees between the two radio frequency branches; the precoding matrix corresponding to index 2 is +.>Indicating that the phase difference between the two radio frequency branches is-90 degrees.

In the following, a method one will be described in detail taking as an example that the index values in the precoding matrix are traversed in order of increasing index values, and the radiation power of the terminal device in the first direction is determined.

Fig. 4 is a schematic flow chart of a method of evaluating the performance of a terminal device according to an embodiment of the present application. The method 400 shown in fig. 4 may include steps S410 to S480, specifically as follows:

s410, configuring a precoding matrix corresponding to the index value 2 for the terminal equipment.

At this time, the phase difference between the two radio frequency branches of the terminal device is configured to be 0 degrees.

S420, measuring the radiation power corresponding to the index value 2.

The first direction may be a direction (θ _i ，φ _j ) At this time, in the case that the terminal device is configured as index value 2 of the precoding matrix, the EiRP measurement result EiRP in the theta polarization direction may be measured _{theta，Index＝2} (θ _i ，φ _j ) And EiRP measurement results in phi polarization direction EiRP _{phi，Index＝2} (θ _i ，φ _j ) At this time, the terminal device in the direction (θ _i ，φ _j ) EiRP measurement results above:

EiRP _Index＝2 (θ _i ，φ _j )＝EiRP _{theta，Index＝2} (θ _i ，φ _j )+EiRP _{phi，Index＝2} (θ _i ，φ _j )

i.e. the terminal device is in direction (θ _i ，φ _j ) The index value 2 corresponds to the radiation power.

S430, configuring a precoding matrix corresponding to the index value 3 for the terminal equipment.

At this time, the phase difference between the two radio frequency branches of the terminal device is configured to be 180 degrees.

S440, measuring the radiation power corresponding to the index value 3.

At this time, eiRP measurement results EiRP in the theta polarization direction can be measured _{theta，Index＝3} (θ _i ，φ _j ) And EiRP measurement results in phi polarization direction EiRP _{phi，Index＝3} (θ _i ，φ _j ) At this time, the terminal device in the direction (θ _i ，φ _j ) EiRP measurement results above:

EiRP _Index＝3 (θ _i ，φ _j )＝EiRP _{theta，Index＝3} (θ _i ，φ _j )+EiRP _{phi，Index＝3} (θ _i ，φ _j )

i.e. the terminal device is in direction (θ _i ，φ _j ) The index value 3 on the upper corresponds to the radiation power.

S450, configuring a precoding matrix corresponding to the index value 4 for the terminal equipment.

At this time, the phase difference between the two radio frequency branches of the terminal device is configured to be 90 degrees.

S460, measuring the radiation power corresponding to the index value 4.

At this time, eiRP measurement results EiRP in the theta polarization direction can be measured _{theta，Index＝4} (θ _i ，φ _j ) And EiRP measurement results in phi polarization direction EiRP _{phi，Index＝4} (θ _i ，φ _j ) At this time, the terminal device in the direction (θ _i ，φ _j ) EiRP measurement results above:

EiRP _Index＝4 (θ _i ，φ _j )＝EiRP _{theta，Index＝4} (θ _i ，φ _j )+EiRP _{phi，Index＝4} (θ _i ，φ _j )

i.e. the terminal device is in direction (θ _i ，φ _j ) The index value 4 on the upper corresponds to the radiation power.

S470, configuring a precoding matrix corresponding to the index value 5 for the terminal equipment.

At this time, the phase difference between the two radio frequency branches of the terminal device is configured to be-90 degrees.

And S480, measuring the radiation power corresponding to the index value 5.

At this time, eiRP measurement results EiRP in the theta polarization direction can be measured _{theta，Index＝5} (θ _i ，φ _j ) And EiRP measurement results in phi polarization direction EiRP _{phi，Index＝5} (θ _i ，φ _j ) At this time, the terminal device in the direction (θ _i ，φ _j ) EiRP measurement results above:

EiRP _Index＝5 (θ _i ，φ _j )＝EiRP _{theta，Index＝5} (θ _i ，φ _j )+EiRP _{phi，Index＝5} (θ _i ，φ _j )

i.e. the terminal device is in direction (θ _i ，φ _j ) The index value 5 corresponds to the radiation power.

Further, the maximum of these four EiRP measurements may be determined, as follows:

EiRP _max (θ _i ，φ _j )

＝max(EiRP _Index＝2 (θ _i ，φ _j )，EiRP _Index＝3 (θ _i ，φ _j )，EiRP _Index＝4 (θ _i ，φ _j )，EiRP _Index＝5 (θ _i ，φ _j ))

at this time, eiRP _max (θ _i ，φ _j ) I.e. direction (θ) _i ，φ _j ) As a result of the above-mentioned EiRP measurement,i.e. a first target radiation power of the terminal device in a first direction.

After measuring EiRP measurement results in all directions, an index TRP representing the total radiation performance of the terminal equipment can be calculated according to the following formula _2Tx ：

TRP _2Tx The radiation performance index of the dual-emission terminal equipment, namely the total radiation power of the terminal equipment, can be represented.

The second method is as follows:

assuming that the first target radiation power of the terminal device in the first direction corresponds to the first signal phase difference, when determining the second target radiation power of the terminal device in the second direction, only radiation powers corresponding to N signal phase differences among the M signal phase differences may be measured, where N is a positive integer less than or equal to M. At this time, the number of measurements can be reduced, thereby improving the evaluation efficiency.

The difference between the N signal phase differences and the first signal phase difference may satisfy a preset condition. For example, the difference between the N signal phase differences and the first signal phase difference may not exceed 90 degrees.

The angular difference between the second direction and the first direction may satisfy a preset relationship. For example, the first angle may be an angle between the first direction and the positive z-axis direction in the spherical coordinate system, the second angle may be an angle between the projection of the first direction on the xoy plane in the spherical coordinate system and the positive x-axis direction, the third angle may be an angle between the second direction and the positive z-axis direction in the spherical coordinate system, and the fourth angle may be an angle between the projection of the second direction on the xoy plane in the spherical coordinate system and the positive x-axis direction. At this time, the angle difference between the second direction and the first direction satisfying the preset relationship may include: the angle difference between the first angle and the third angle is a preset value, and the second angle is the same as the fourth angle; or, the angle difference between the second angle and the fourth angle is a preset value, and the first angle is the same as the third angle.

For example, assuming that the index value (of the precoding matrix) corresponding to the first target radiation power of the terminal device in the first direction is 2, in the case that the angle difference between the second direction and the first direction satisfies the preset relationship, no jump occurs in the phase difference between the two radio frequency branches of the terminal device, that is, the difference between the signal phase difference of the terminal device in the second direction and the first signal phase difference does not exceed 90 degrees, that is, the index value of the precoding matrix corresponding to the terminal device in the second direction may be only one of 2, 4, and 5. In other words, the phase difference corresponding to the index value 2 is 0 degrees, and the phase difference of the terminal device in the second direction may be only 0 degrees, 90 degrees or-90 degrees (i.e., the difference is not more than 90 degrees).

In the following, in conjunction with fig. 5, a method two will be described in detail, taking an example that an index value (of a precoding matrix) corresponding to a first radiation power of the terminal device in a first direction is 2.

Fig. 5 is a schematic flow chart of a method of evaluating the performance of a terminal device according to an embodiment of the present application. The method 500 shown in fig. 5 may include steps S310, S320, and S330, which are specifically as follows:

s510, configuring a precoding matrix corresponding to the index value 2 for the terminal equipment.

S520, measuring the radiation power corresponding to the index value 2.

Let the first direction be the direction (θ _i ，φ _j ) The second direction satisfying the preset relationship with the first direction may be a direction (θ _i+1 ，φ _j ) Or (θ) _i ，φ _j+1 ). Measuring the direction (θ) of the terminal device _i+1 ，φ _j ) Or (θ) _i ，φ _j+1 ) And the EiRP measurement result corresponding to the index value 2.

S530, configuring a precoding matrix corresponding to the index value 4 for the terminal equipment.

S540, measuring the radiation power corresponding to the index value 4.

Measuring the direction (θ) of the terminal device _i+1 ，φ _j ) Or (θ) _i ，φ _j+1 ) And the EiRP measurement corresponding to index value 4.

S550, configuring a precoding matrix corresponding to the index value 5 for the terminal equipment.

S560, measuring the radiation power corresponding to the index value 5.

Measuring the direction (θ) of the terminal device _i+1 ，φ _j ) Or (θ) _i ，φ _j+1 ) And the EiRP measurement result corresponding to the index value 5.

Further, the maximum of the three EiRP measurements, i.e. the second target radiation power of the terminal device in the second direction, may be determined.

After measuring EiRP measurements in various directions, the total radiated power of the terminal device may be calculated according to the formula in method 400.

As can be seen from the above embodiments, the above method two can reduce the number of measurements, and therefore, the evaluation efficiency can be improved.

In the embodiment of the present application, the method one may be used to obtain a plurality of radiation powers of the terminal device in a certain signal radiation direction, or the method two may be used, which is not limited in this application.

The method embodiments of the present application are described above in detail with reference to fig. 1 to 5, and the apparatus embodiments of the present application are described below in detail with reference to fig. 6 and 7. It is to be understood that the description of the method embodiments corresponds to the description of the device embodiments, and that parts not described in detail can therefore be seen in the preceding method embodiments.

Fig. 6 is a schematic block diagram of an apparatus for evaluating performance of a terminal device according to an embodiment of the present application, where the terminal device may include a plurality of radio frequency branches. As shown in fig. 6, the apparatus 600 includes an obtaining unit 610 and a processing unit 620, which are specifically as follows:

an obtaining unit 610, configured to obtain M first radiation powers of the terminal device in a first direction, where each first radiation power of the M first radiation powers is measured when the multiple radio frequency branches are in a transmitting state at the same time, the M first radiation powers are in one-to-one correspondence with M signal phase differences between the multiple radio frequency branches, any two signal phase differences in the M signal phase differences are different, and M is a positive integer;

a processing unit 620, configured to determine a first target radiation power of the terminal device in the first direction according to the M first radiation powers;

the processing unit 630 is further configured to evaluate a radiation performance of the terminal device according to the first target radiation power.

Optionally, the acquiring unit 610 is specifically configured to: sequentially determining the M first radiation powers according to the increasing sequence of the M index values; or sequentially determining the M first radiation powers according to the descending order of the M index values; the M signal phase differences are in one-to-one correspondence with the M index values.

Optionally, the M index values are index values of M different precoding matrices.

Optionally, the processing unit 620 is specifically configured to: and taking the maximum radiation power in the M first radiation powers as the first target radiation power.

Optionally, the obtaining unit 610 is further configured to: acquiring N second radiation powers of the terminal equipment in a second direction, wherein each second radiation power in the N second radiation powers is measured when the plurality of radio frequency branches are in a transmitting state at the same time, N signal phase differences between the N second radiation powers and the plurality of radio frequency branches are in one-to-one correspondence, any two signal phase differences in the M signal phase differences are different, the angle difference between the second direction and the first direction meets a preset relation, the difference between each signal phase difference in the N signal phase differences and the first signal phase difference is not more than 90 degrees, the first signal phase difference is the signal phase difference corresponding to the first target radiation power, and N is a positive integer smaller than or equal to M;

the processing unit 620 is further configured to: determining a second target radiation power of the terminal equipment in the second direction according to the N second radiation powers;

The processing unit 620 is specifically configured to: and evaluating the radiation performance of the terminal equipment according to the first target radiation power and the second target radiation power.

Optionally, the first angle is an included angle between the first direction and a positive z-axis direction in the spherical coordinate system, the second angle is an included angle between a projection of an xoy plane in the spherical coordinate system and a positive x-axis direction, the third angle is an included angle between the second direction and a positive z-axis direction in the spherical coordinate system, and the fourth angle is an included angle between a projection of the xoy plane in the spherical coordinate system and a positive x-axis direction;

wherein the angle difference between the second direction and the first direction satisfies a preset relationship comprising: the angle difference between the first angle and the third angle is a preset value, and the second angle is the same as the fourth angle; or, the angle difference between the second angle and the fourth angle is a preset value, and the first angle is the same as the third angle.

Fig. 7 is a schematic structural diagram of an apparatus provided in an embodiment of the present application. The dashed lines in fig. 7 indicate that the unit or module is optional. The apparatus 700 may be used to implement the methods described in the method embodiments above. The apparatus 700 may be a chip or an apparatus for evaluating the performance of a terminal device.

The apparatus 700 may include one or more processors 710. The processor 710 may support the apparatus 700 to implement the methods described in the method embodiments above. The processor 710 may be a general purpose processor or a special purpose processor. For example, the processor may be a central processing unit (central processing unit, CPU). Alternatively, the processor may be another general purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The apparatus 700 may also include one or more memories 720. The memory 720 has stored thereon a program that is executable by the processor 710 to cause the processor 710 to perform the method described in the method embodiments above. The memory 720 may be separate from the processor 710 or may be integrated into the processor 710.

The apparatus 700 may also include a transceiver 730. Processor 710 may communicate with other devices or chips through transceiver 730. For example, the processor 710 may transmit and receive data to and from other devices or chips through the transceiver 730.

The embodiment of the application also provides a computer readable storage medium for storing a program. The computer-readable storage medium is applicable to the apparatus for evaluating the performance of a terminal device provided in the embodiments of the present application, and the program causes a computer to execute the method performed by the apparatus for evaluating the performance of a terminal device in the embodiments of the present application.

Embodiments of the present application also provide a computer program product. The computer program product includes a program. The computer program product may be applied to the apparatus for evaluating the performance of a terminal device provided in the embodiments of the present application, and the program causes a computer to execute the method performed by the apparatus for evaluating the performance of a terminal device in the embodiments of the present application.

The embodiment of the application also provides a computer program. The computer program is applicable to the apparatus for evaluating the performance of a terminal device provided in the embodiments of the present application, and causes a computer to execute the method performed by the apparatus for evaluating the performance of a terminal device in the embodiments of the present application.

It should be understood that in the embodiments of the present application, "B corresponding to a" means that B is associated with a, from which B may be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital versatile disk (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of evaluating the performance of a terminal device, the terminal device comprising a plurality of radio frequency branches, the method comprising:

obtaining M first radiation powers of the terminal equipment in a first direction, wherein each first radiation power in the M first radiation powers is measured when the radio frequency branches are in a transmitting state at the same time, M signal phase differences between the M first radiation powers and the radio frequency branches are in one-to-one correspondence, any two signal phase differences in the M signal phase differences are different, and M is a positive integer;

determining a first target radiation power of the terminal equipment in the first direction according to the M first radiation powers;

and evaluating the radiation performance of the terminal equipment according to the first target radiation power.

2. The method of claim 1, wherein the obtaining M first radiant powers of the terminal device in the first direction comprises:

sequentially determining the M first radiation powers according to the increasing sequence of the M index values; or alternatively, the process may be performed,

sequentially determining the M first radiation powers according to the descending order of the M index values;

the M signal phase differences are in one-to-one correspondence with the M index values.

3. The method of claim 2, wherein the M index values are index values of M different precoding matrices.

4. A method according to any of claims 1-3, characterized in that said determining a first target radiation power of the terminal device in the first direction from the M first radiation powers comprises:

and taking the maximum radiation power in the M first radiation powers as the first target radiation power.

5. The method according to claim 4, wherein the method further comprises:

acquiring N second radiation powers of the terminal equipment in a second direction, wherein each second radiation power in the N second radiation powers is measured when the plurality of radio frequency branches are in a transmitting state at the same time, N signal phase differences between the N second radiation powers and the plurality of radio frequency branches are in one-to-one correspondence, any two signal phase differences in the N signal phase differences are different, the angle difference between the second direction and the first direction meets a preset relation, the difference between each signal phase difference in the N signal phase differences and the first signal phase difference is not more than 90 degrees, the first signal phase difference is the signal phase difference corresponding to the first target radiation power, and N is a positive integer smaller than or equal to M;

Determining a second target radiation power of the terminal equipment in the second direction according to the N second radiation powers;

the evaluating the radiation performance of the terminal device according to the first target radiation power comprises:

and evaluating the radiation performance of the terminal equipment according to the first target radiation power and the second target radiation power.

6. The method of claim 5, wherein a first angle is an angle between the first direction and a positive z-axis direction in a spherical coordinate system, a second angle is an angle between a projection of an xoy plane in the spherical coordinate system and a positive x-axis direction, a third angle is an angle between the second direction and a positive z-axis direction in the spherical coordinate system, and a fourth angle is an angle between a projection of an xoy plane in the spherical coordinate system and a positive x-axis direction;

7. An apparatus for evaluating the performance of a terminal device, the terminal device comprising a plurality of radio frequency branches, the apparatus comprising:

the acquisition unit is used for acquiring M first radiation powers of the terminal equipment in a first direction, each first radiation power in the M first radiation powers is measured when the radio frequency branches are in a transmitting state at the same time, the M first radiation powers are in one-to-one correspondence with M signal phase differences among the radio frequency branches, any two signal phase differences in the M signal phase differences are different, and M is a positive integer;

a processing unit, configured to determine a first target radiation power of the terminal device in the first direction according to the M first radiation powers;

the processing unit is further configured to evaluate a radiation performance of the terminal device according to the first target radiation power.

8. The apparatus of claim 7, wherein the acquisition unit is specifically configured to: sequentially determining the M first radiation powers according to the increasing sequence of the M index values; or sequentially determining the M first radiation powers according to the descending order of the M index values; the M signal phase differences are in one-to-one correspondence with the M index values.

9. The method of claim 8, wherein the M index values are index values of M different precoding matrices.

10. The apparatus according to any one of claims 7 to 9, wherein the processing unit is specifically configured to: and taking the maximum radiation power in the M first radiation powers as the first target radiation power.

11. The apparatus of claim 10, wherein the acquisition unit is further configured to: acquiring N second radiation powers of the terminal equipment in a second direction, wherein each second radiation power in the N second radiation powers is measured when the plurality of radio frequency branches are in a transmitting state at the same time, N signal phase differences between the N second radiation powers and the plurality of radio frequency branches are in one-to-one correspondence, any two signal phase differences in the N signal phase differences are different, the angle difference between the second direction and the first direction meets a preset relation, the difference between each signal phase difference in the N signal phase differences and the first signal phase difference is not more than 90 degrees, the first signal phase difference is the signal phase difference corresponding to the first target radiation power, and N is a positive integer smaller than or equal to M;

The processing unit is further configured to: determining a second target radiation power of the terminal equipment in the second direction according to the N second radiation powers;

the processing unit is specifically configured to: and evaluating the radiation performance of the terminal equipment according to the first target radiation power and the second target radiation power.

12. The apparatus of claim 11, wherein a first angle is an angle between the first direction and a positive z-axis direction in a spherical coordinate system, a second angle is an angle between a projection of an xoy plane in the spherical coordinate system from the first direction and a positive x-axis direction, a third angle is an angle between the second direction and a positive z-axis direction in the spherical coordinate system, and a fourth angle is an angle between a projection of an xoy plane in the spherical coordinate system from the second direction and a positive x-axis direction;

13. An apparatus for evaluating the performance of a terminal device, comprising a memory for storing a program, a transceiver for receiving and transmitting wireless signals, and a processor for invoking the program in the memory to perform the method of any of claims 1-6.

14. A chip comprising a processor for calling a program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 6.

15. A computer-readable storage medium, characterized in that a program is stored thereon, which program causes a computer to execute the method according to any one of claims 1 to 6.

16. A computer program product comprising a program for causing a computer to perform the method of any one of claims 1 to 6.

17. A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 1 to 6.