WO2018006590A1

WO2018006590A1 - Antenna tuning parameter processing method and mobile terminal

Info

Publication number: WO2018006590A1
Application number: PCT/CN2017/072209
Authority: WO
Inventors: 刘源源
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-07-07
Filing date: 2017-01-23
Publication date: 2018-01-11
Also published as: CN107592405B; CN107592405A

Abstract

Provided are an antenna tuning parameter processing method and a mobile terminal. The processing method comprises: a communication processor receives data reported by a sensor of a mobile terminal when the mobile terminal is in a communication state procedure, or a data transmission state procedure; the communication processor determines a scenario in which the mobile terminal is located according to the data reported by the sensor, wherein the scenario in which the mobile terminal is located is used for identifying a relative position relationship between the mobile terminal and a user of the mobile terminal; the communication processor obtains a pre-stored antenna tuning parameter corresponding to the scenario in which the mobile terminal is located, and writes the antenna tuning parameter into an antenna tuner.

Description

Method for processing antenna tuning parameters and mobile terminal

Technical field

The present application relates to, but is not limited to, the field of communication technologies, and in particular, to a method for processing antenna tuning parameters and a mobile terminal.

Background technique

At present, mobile phones generally use a full-metal casing, the space inside the mobile phone is getting smaller and smaller, and the radio frequency environment is more complicated, causing the antenna performance to be severely attenuated when the hand is held, close to the body, and close to the human head.

Although various manufacturers generally use the method of changing antennas to avoid the problems caused by hand errors, the two antennas in the scene close to the body and close to the human head are severely attenuated and cannot be solved by changing the antenna. This results in antenna performance near the body and close to the human head that is less efficient than antennas in free space.

Existing methods for improving antenna performance are relatively simple, mainly through the following methods:

Method 1: Change the antenna. A switch is added between the RF path and the antenna path to solve the problem of severe attenuation of the transmitting antenna caused by the hand grip.

Method 2: Differentiate the scene of the head. The distance sensor is used to judge whether the mobile phone is close to or away from the human head, and the sensor scene is updated in real time. Mainly relying on the distance sensor to notify the application processor of the approach or proximity event, and then the application processor notifies the communication processor of the proximity or remote event through the interface with the communication processor, and the communication processor receives the notification to update the antenna tuner application scenario. Then, the antenna tuner control parameters are updated in real time in conjunction with the operation of the protocol stack, so that the antenna tuner is updated in real time to the current best matching parameter.

The existing implementations have a relatively simple function, and the sensors are not fully utilized to distinguish various scenarios that affect the performance of the antenna. In particular, it is impossible to distinguish between the left and right hand holding and approaching the human body, and the antenna performance is not optimized.

Moreover, the existing implementation has a delay; the sensor reports the interrupt to the application processor, the application processor processes the sensor to report the interrupt and parses the sensor event, and then notifies the communication processor through the interface between the application processor and the communication processor, and the communication After the processor receives the notification, it will update the antenna tuning. The scene of the device, after the update is completed, writes the antenna tuner parameters of the new scene to the antenna tuner in the control command of the next antenna tuner. This entire communication process passes through many modules and cannot guarantee real-time performance. The behavior of the communications processor protocol stack changes very quickly, and it is not possible to update the antenna tuner scenario in time to cause changes in the protocol stack behavior in extreme cases.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiment of the invention provides a method for processing antenna tuning parameters and a mobile terminal, which solves the problem that the communication processor must obtain the data of the sensor through the application processor in the prior art, which causes a large delay in improving the performance of the antenna.

An embodiment of the present invention provides a method for processing an antenna tuning parameter, including:

The communication processor receives data reported by the sensor of the mobile terminal during a call state or a data transmission state of the mobile terminal;

Determining, by the communication processor, the scenario in which the mobile terminal is located according to the data reported by the sensor; wherein the scenario in which the mobile terminal is located is used to identify a relative positional relationship between the mobile terminal and the mobile terminal user;

The communication processor acquires a pre-stored antenna tuning parameter corresponding to a scene in which the mobile terminal is located, and writes the antenna tuning parameter to an antenna tuner.

Wherein, the sensor may include one or more of a proximity sensor, a three-axis sensor, an acceleration sensor, and a pressure sensor.

The step of determining, by the communications processor, the scenario in which the mobile terminal is located according to the data reported by the sensor may include:

The communication processor is configured to: according to the first data reported by the proximity sensor, the second data reported by the pressure sensor, the third data reported by the three-axis sensor, and the fourth data reported by the acceleration sensor. And determining that the mobile terminal is in a left-hand left-hand scene, a right-hand right-hand scene, a left-hand holding scene, a right-hand holding scene, a close-body scene, or a free-space scene.

Wherein, according to the first data, the second data, the third data, and the fourth data One less than determining that the mobile terminal is not in the left-hand left-hand scene, the right-hand right-hand scene, the left-hand holding scene, the right-hand holding scene, and the proximity body scene, the communication processor may determine that the mobile terminal is in a free-space scene.

The pre-stored antenna tuning parameters corresponding to the scenario in which the mobile terminal is located may include: at least one of different attenuation of antenna feeding according to different scenarios, and different shielding levels of the front side of the mobile terminal in different scenarios. Determine the antenna tuning parameters when the antenna of the mobile terminal reaches optimal performance.

The embodiment of the invention further provides a mobile terminal, including:

a communication processor and a sensor respectively connected to the communication processor; wherein

The communication processor is configured to receive data reported by the sensor during the process of the mobile terminal being in a call state or during a data transmission state, and determine a scenario in which the mobile terminal is located according to the data reported by the sensor; wherein the mobile terminal The scenario is used to identify a relative positional relationship between the mobile terminal and the mobile terminal user;

The communication processor is further configured to acquire a pre-stored antenna tuning parameter corresponding to a scene in which the mobile terminal is located, and write the antenna tuning parameter to an antenna tuner.

The communication processor may be configured to determine, according to the data reported by the sensor, a scenario in which the mobile terminal is located according to the first data reported by the proximity sensor, the second data reported by the pressure sensor, and the Determining at least one of the third data reported by the three-axis sensor and the fourth data reported by the acceleration sensor, determining that the mobile terminal is in a left-hand left-hand scene, a right-hand right-hand scene, a left-hand holding scene, and a right-hand holding scene Close to body scenes or free space scenes.

The communication processor may be configured to determine, according to the data reported by the sensor, a scenario in which the mobile terminal is located: if at least according to the first data, the second data, the third data, and the fourth data Determining that the mobile terminal is not in a left-hand left-hand scene, a right-hand right-hand scene, a left-hand holding scene, a right-hand holding scene, and a proximity body scene, and determining that the mobile terminal is in a free space scene.

The above technical solutions of the embodiments of the present invention have at least the following beneficial effects:

In the method for processing antenna tuning parameters and the mobile terminal in the embodiment of the present invention, real-time updating of the antenna tuner scene is realized by closely coupling the communication processor and the sensor; that is, the sensor is connected with the communication processor, and the information of the sensor is directly Notifying the communication processor, after receiving the notification, the communication processor determines the scene in which the mobile terminal is located according to the algorithm, thereby acquiring the antenna tuning parameters corresponding to the scene, and updating the parameters of the antenna tuner in real time, thereby realizing various situations. The optimal performance of the lower antenna reduces the loss of the human body to the performance of the mobile phone antenna, and brings a better experience for the user.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is a flow chart showing the basic steps of a method for processing antenna tuning parameters according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention;

FIG. 3 shows a second structural diagram of a mobile terminal according to an embodiment of the present invention.

Embodiments of the invention

The detailed description will be made below in conjunction with the accompanying drawings and embodiments.

As shown in FIG. 1 , an embodiment of the present invention provides a method for processing an antenna tuning parameter, including:

Step 11: The communication processor receives data reported by the sensor of the mobile terminal during a call state (incoming call or outgoing call) or a data transmission state;

Step 12: The communication processor determines, according to data reported by the sensor, a scenario in which the mobile terminal is located, where the scenario in which the mobile terminal is located is used to identify a relative location between the mobile terminal and a mobile terminal user. Relationship

Step 13: The communication processor acquires a pre-stored antenna tuning parameter corresponding to a scenario in which the mobile terminal is located, and writes the antenna tuning parameter into an antenna tuner.

In the embodiment of the present invention, when the mobile terminal is in a call state or a data transmission state, the antenna is in an active state. Therefore, the adjustment of the antenna tuning parameter in the embodiment of the present invention is directed to the antenna in the working state, and the antenna in the non-working state is incorrect. The parameters are adjusted to save power of the mobile terminal and avoid unnecessary data interaction between the communication processor, the sensor and the antenna tuner.

In the embodiment of the present invention, the communication processor directly receives the data reported by the sensor (one or more sensors) of the mobile terminal, thereby avoiding the delay caused by the application processor transmitting the sensor data, so that the data acquisition has real-time performance. . a preset algorithm in the communication processor, the communication processor being able to determine a scenario in which the mobile terminal is located according to a preset algorithm, the scenario of which refers to a relative positional relationship between the mobile terminal and the mobile terminal user, for example, the mobile terminal user holds the left hand Holding the mobile terminal, or the mobile terminal user holds the mobile terminal in the right hand and the mobile terminal is in the right position of the user's head, etc., which are not enumerated here.

After determining the scenario in which the mobile terminal is located according to the algorithm, the communications processor acquires the pre-stored antenna tuning parameters corresponding to the current scenario, and writes the antenna tuning parameters to the antenna tuner in real time.

In an embodiment of the invention, the sensor may include one or more of a proximity sensor, a triaxial sensor, an acceleration sensor, and a pressure sensor.

Step 12 can include:

Step 121: The communication processor is configured according to the first data reported by the proximity sensor, the second data reported by the pressure sensor, the third data reported by the three-axis sensor, and the fourth data reported by the acceleration sensor. And at least one of determining that the mobile terminal is in a left-hand left-hand scene, a right-hand right-hand scene, a left-hand holding scene, a right-hand holding scene, a close-body scene, or a free-space scene.

And determining, according to at least one of the first data, the second data, the third data, and the fourth data, that the mobile terminal is not in a left-hand left-hand scene, a right-hand right-right scene, a left-hand holding scene, or a right-hand grip Holding the scene and approaching the body scene, the communication processor determines that the mobile terminal is in a free space scene.

Wherein, the communication processor determines, according to the first data reported by the proximity sensor, if the mobile terminal In the non-proximity state, the communication processor determines, according to the first data reported by the proximity sensor and the third data reported by the three-axis sensor, if the mobile terminal changes from the non-proximity state to the close state, the angle is distinguished according to the angle between the X-axis and the Y-axis. If the mobile terminal is in the left-hand left-hand scene or the mobile terminal is in the right-hand right-hand scene, if the mobile terminal is always in the non-proximity state, the communication processor determines whether the mobile terminal is in the left-handed state or the right-handed state according to the second data reported by the pressure sensor. , thereby distinguishing that the mobile terminal is in the left hand holding scene or the right hand holding the scene.

Alternatively, the communication processor determines, according to the first data reported by the proximity sensor, that if the mobile terminal is always in a close state, the fourth data reported by the acceleration sensor, together with the third data reported by the three-axis sensor (X-axis and Y-axis) The angle is determined. The mobile terminal is judged to be in the pocket mode or the horizontally reversed. If the mobile terminal is still upside down, no processing is performed, and the mobile terminal is determined to be in a free space scene; otherwise, the mobile terminal is in the pocket mode, and it is determined that the mobile terminal is in a close to the body scene.

It should be noted that the foregoing method for distinguishing the scenario in which the mobile terminal is located is only an exemplary embodiment of the present application, and is not used to limit the scope of protection of the present application. Other methods capable of distinguishing the scenario in which the mobile terminal is located are also applicable to the present application. I will not describe them one by one here.

The scene in which the mobile phone is located according to the above-mentioned differentiated scene may be a left-hand left-hand scene, a right-hand right-hand scene, a left-hand holding scene, a right-hand holding scene, a close-body scene, or a free-space scene. If the scene is not distinguished, it is still a free space scene. After updating the scene, the communication processor immediately sends a control command in the new scene to the antenna tuner (the control command carries the pre-stored antenna tuning parameters corresponding to the scene), thereby implementing the antenna tuner of the mobile terminal in various scenarios. Real-time updates underneath to optimize antenna performance in real time.

It should be noted that when the call ends or the data transmission ends, the mobile terminal returns to the free space scenario, and the communication processor terminates receiving the sensor data and the algorithm scene update.

In an exemplary embodiment, the pre-stored antenna tuning parameters corresponding to the scenario in which the mobile terminal is located include: different attenuations of antenna feeding according to different scenarios, and different shielding levels of the front side of the mobile terminal in different scenarios. At least one of the antenna tuning parameters is determined when the antenna of the mobile terminal achieves optimal performance.

In the embodiment of the present invention, the matching capacitance requirements of the antenna tuner are different in various scenarios. In the free space scenario, there is no need to pay special attention to the directionality of the antenna; in the right hand grip scene, the left side feed point and the front end of the mobile terminal are not seriously attenuated; in the left hand grip scene, the right feed point and the mobile terminal are frontally degraded. Less serious. In the scene of the left-hand left head, the right antenna feed point is not completely obscured, the right feed point signal attenuation is not serious, and the antenna can be biased to the right feed point; under the right-hand right-hand scene, the left feed point signal attenuation is not strong. The antenna can be biased to the left feed point.

The performance of the antenna in each frequency band can be optimized according to different characteristics of the antenna feed point and the front side of the mobile phone in various scenarios. The optimal parameters of each frequency band in different scenarios need to compare several sets of parameter values to select the best performance data, which is the optimal parameter value in this scenario. The pre-stored antenna tuning parameters are based on pre-set values of the antenna debug results to ensure optimal performance of the antenna in various scenarios.

For example, the user takes out the mobile phone placed on the table or in the trouser pocket, and places it on the left hand or the right hand on the right hand side; or, the left hand holds the answer, the right hand holds the answer; or the left hand holds the mobile phone to access the Internet, or the right hand. Holding the mobile phone to surf the Internet; the antenna tuner controls the antenna tuner in real time according to the usage scene to update the most suitable matching parameters, which can better optimize the real-time optimization according to the network type and antenna position of the mobile phone in various practical scenarios. The matching parameters of the antenna tuner can realize the optimal performance of the antenna under various conditions, reduce the loss caused by the human body to the performance of the mobile phone antenna, and bring a better experience for the user.

In summary, in the embodiment of the present invention, the real-time update of the antenna tuner scene is implemented by using a sensor and a communication processor in a tightly coupled manner; the sensor in the mobile terminal is connected to the communication processor, and the sensor information is notified to the communication processor, and the communication is performed. After receiving the notification, the processor determines the scene that the antenna tuner should use at this time according to the algorithm, and updates the antenna tuner scene in real time.

Since some of the current options are to report events from the sensor to the application processor, the application processor passes the message to the communication processor, which is likely to cause a large delay, causing the parameter adjustment to not change with the scene. And change in time. Therefore, in the embodiment of the present invention, the parameter is directly transmitted from the sensor to the communication processor to ensure that the protocol stack acquires the change of the scene in time. Because the communication processor can respond to changes in the scene in time, and can respond in time in complex dual-card dual-standby and proximity search environments, it can improve RF performance by at least 1dBm and can be better than other mobile phones under weak signals. Resident and conduct business, reduce dropped calls; improve the Internet speed when the signal is good.

As shown in FIG. 2, an embodiment of the present invention further provides a mobile terminal, including:

a communication processor 21 and sensors respectively connected to the communication processor 21 (for example, Sensors 22, 23, ..., sensors N);

The communication processor 21 is configured to receive data reported by the sensor during the process of the mobile terminal being in a call state or during a data transmission state, and determine a scenario in which the mobile terminal is located according to the data reported by the multiple sensors; The scenario in which the mobile terminal is located is used to identify a relative positional relationship between the mobile terminal and the mobile terminal user;

The communication processor 21 is further configured to acquire a pre-stored antenna tuning parameter corresponding to a scene in which the mobile terminal is located, and write the antenna tuning parameter to an antenna tuner.

In the embodiment of the present invention, the communication processor 21 is configured to determine, according to the data reported by the multiple sensors, the scenario in which the mobile terminal is located: according to the first data reported by the proximity sensor, the pressure sensor is reported Determining that the mobile terminal is in a left-hand left-hand scene, a right-hand right-right scene, and a left-handed grip, at least one of the second data reported by the three-axis sensor and the fourth data reported by the acceleration sensor Scene, right hand holding scene, close to body scene or free space scene.

In the embodiment of the present invention, the communications processor 21 is configured to determine, according to data reported by multiple sensors, a scenario in which the mobile terminal is located: according to the first data, the second data, the third data, and At least one of the fourth data determines that the mobile terminal is not in a left-hand left-hand scene, a right-hand right-hand scene, a left-hand holding scene, a right-hand holding scene, and a proximity body scene, and determines that the mobile terminal is in a free-space scene.

In the embodiment of the present invention, the pre-stored antenna tuning parameters corresponding to the scenario in which the mobile terminal is located include: different attenuations of antenna feeding according to different scenarios, and different shielding levels of the front side of the mobile terminal in different scenarios. At least one antenna tuning parameter that determines when the antenna of the mobile terminal achieves optimal performance.

As shown in FIG. 3, the mobile terminal provided by the embodiment of the present invention includes a sensor 31, a communication processor 32, an application processor 33, a radio frequency front end, and an antenna front end (the antenna front end includes an antenna tuner).

The communication processor 32 includes a protocol stack, a radio frequency driver, and a process for distinguishing various types of scenarios for implementing the processing method of the antenna tuning parameters.

Among them, the protocol stack determines system behavior, such as resident 4G, monitor card 2 paging, etc.; RF driver needs real-time control of RF front-end and antenna front-end hardware, such as single-pole multi-throw switch, RF power amplifier, antenna tuner, etc., for example, Control the output voltage of the antenna tuner according to the scene and antenna position (the antenna switching technique, the main antenna path and the diversity antenna path are switched after switching) to ensure the best performance in a certain frequency band in a certain scene; The process of the class scenario determines various scenarios through the sensor, and provides the RF driver with optimal parameters in various scenarios to control the antenna tuner. These parameters are based on pre-set values of the antenna debug results to ensure the best performance of the antenna in various scenarios.

It should be noted that, the mobile terminal provided by the embodiment of the present invention is a mobile terminal capable of applying the processing method of the antenna tuning parameter, and all embodiments of the method for processing the antenna tuning parameter are applicable to the mobile terminal, and both can be achieved. The same or similar benefits.

The above is an exemplary embodiment of the present application, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present application. Retouching should also be considered as protection of this application.

Industrial applicability

The embodiment of the present application provides a method for processing an antenna tuning parameter and a mobile terminal, which realizes real-time updating of an antenna tuner scene by closely coupling a communication processor and a sensor; and realizes optimal performance of the antenna under various conditions, and reduces The human body's loss to the performance of the mobile phone antenna provides a better experience for the user.

Claims

A method for processing antenna tuning parameters, comprising:

The communication processor receives data reported by the sensor of the mobile terminal during a call state or a data transmission state of the mobile terminal;

Determining, by the communication processor, the scenario in which the mobile terminal is located according to the data reported by the sensor; wherein the scenario in which the mobile terminal is located is used to identify a relative positional relationship between the mobile terminal and the mobile terminal user;

The communication processor acquires a pre-stored antenna tuning parameter corresponding to a scene in which the mobile terminal is located, and writes the antenna tuning parameter to an antenna tuner.
The processing method of claim 1, wherein the sensor comprises one or more of a proximity sensor, a triaxial sensor, an acceleration sensor, and a pressure sensor.
The processing method of claim 2, wherein the step of determining, by the communication processor, the scenario in which the mobile terminal is located according to the data reported by the sensor comprises:

The communication processor is configured to: according to the first data reported by the proximity sensor, the second data reported by the pressure sensor, the third data reported by the three-axis sensor, and the fourth data reported by the acceleration sensor. And determining that the mobile terminal is in a left-hand left-hand scene, a right-hand right-hand scene, a left-hand holding scene, a right-hand holding scene, a close-body scene, or a free-space scene.
The processing method according to claim 3, wherein if the mobile terminal is determined not to be in the left-hand left-hand scene, right-hand right, according to at least one of the first data, the second data, the third data, and the fourth data The head scene, the left hand holding scene, the right hand holding scene, and the proximity body scene, the communication processor determines that the mobile terminal is in a free space scene.
The processing method according to claim 3, wherein the pre-stored antenna tuning parameters corresponding to the scenario in which the mobile terminal is located include: different attenuations of antenna feeds according to different scenarios, and mobile terminals in different scenarios. At least one of the different degrees of shading of the front side determines an antenna tuning parameter when the antenna of the mobile terminal achieves optimal performance.
A mobile terminal includes:

a communication processor and a sensor respectively connected to the communication processor; wherein

The communication processor is configured to be in a process of a mobile terminal being in a call state or in a data transmission state Receiving the data reported by the sensor and determining the scenario in which the mobile terminal is located according to the data reported by the sensor; wherein the scenario in which the mobile terminal is located is used to identify between the mobile terminal and the mobile terminal user Relative positional relationship;

The communication processor is further configured to acquire a pre-stored antenna tuning parameter corresponding to a scene in which the mobile terminal is located, and write the antenna tuning parameter to an antenna tuner.
The mobile terminal of claim 6, wherein the sensor comprises one or more of a proximity sensor, a triaxial sensor, an acceleration sensor, and a pressure sensor.
The mobile terminal of claim 7, wherein the communication processor is configured to determine, according to the data reported by the sensor, a scenario in which the mobile terminal is located: according to the first data reported by the proximity sensor, Determining, by the at least one of the second data reported by the pressure sensor, the third data reported by the three-axis sensor, and the fourth data reported by the acceleration sensor, that the mobile terminal is in a left-hand left-hand scene and a right-hand right Scene, left hand holding scene, right hand holding scene, close to body scene or free space scene.
The mobile terminal of claim 8, wherein the communication processor is configured to determine, according to the data reported by the sensor, a scenario in which the mobile terminal is located: if according to the first data, the second data And determining, by the at least one of the third data and the fourth data, that the mobile terminal is not in a left-hand left-hand scene, a right-hand right-hand scene, a left-hand holding scene, a right-hand holding scene, and a proximity body scene, determining that the mobile terminal is in Free space scene.
The mobile terminal according to claim 8, wherein the pre-stored antenna tuning parameters corresponding to the scene in which the mobile terminal is located include: different attenuation of antenna feeding according to different scenarios, and mobile terminals in different scenarios. At least one of the different degrees of shading of the front side determines an antenna tuning parameter when the antenna of the mobile terminal achieves optimal performance.