WO2019056356A1 - Method and system for enhancing call experience - Google Patents

Abstract

Provided is a method for enhancing a call experience. The method comprises the following steps: S1, determining whether a mobile phone is in a call state, if so, proceeding to execute step S2, and if not, not executing any operation; S2, respectively detecting whether the mobile phone is close to a head portion, whether same is hands-free, and whether an earphone is inserted into same; S3, if the mobile phone is close to the head portion, determining that the mobile phone is in a head-hand mode, and then executing step S4, and if the mobile phone is in a hands-free state or an earphone is inserted into the mobile phone, determining that the mobile phone is in a free mode, and then executing step S5; S4, adjusting the resonance of a mobile phone antenna to a head-hand state working mode, and returning to step S1 to carry out cyclic determination; and S5, adjusting the resonance of the mobile phone antenna to a free space state working mode, and returning to step S1 to carry out cyclic determination. The advantages thereof are: firstly, a call state of a mobile phone is determined, a call mode is then determined, and a working mode of an antenna is debugged according to a determination result, so that the user experience is improved; moreover, the method does not increase the hardware cost.

Description

Method and system for enhancing call experience Technical field

The present invention relates to the field of mobile phone communication technologies, and in particular, to a method and system for enhancing a call experience.

Background technique

During the communication process of the mobile phone, the call status is mainly divided into the following types: 1. Hand-held call close to the head; 2. Headphone call; 3. Hands-free call. In a call mode, the performance of mode 1 is the worst, and it is also the most complained by the user. The reason is that in the head-hand mode, the antenna will have a frequency offset and a mismatch, resulting in a significant drop in antenna performance.

Today's mobile phones not only support cellular frequencies, but also support non-cellular features for mobile TV, Bluetooth, WLAN and location services. Since each handset replacement reduces the available space of the antenna, the antenna is wrapped around the camera and keyboard circuitry and rearranged, resulting in reduced antenna efficiency. A portion of the performance loss can be recovered by antenna tuning, which uses dynamic impedance tuning techniques to optimize antenna performance based on operating frequency and environmental conditions. However, the challenge is that any successful antenna tuning scheme must meet the requirements of low loss, high linearity, ability to handle very high intensity RF signals, and low power consumption.

Antenna Tuning Architecture: When passive antennas no longer meet the performance requirements of increased bandwidth requirements, more complex handset designs, and smaller available antenna space, open-loop antenna tuning systems are often used. In an open-loop system, the tunable component fine-tunes the performance of the antenna in a set frequency band and operating mode based on static information (such as transmit/receive frequency, modulation scheme, or usage). However, since the open loop system does not measure the operating conditions of the antenna in real time, it is not possible to specifically consider the environmental conditions.

In mobile devices, environmental conditions are important as they change as the user walks, drives or moves their fingers. Antenna designers can use adaptive closed-loop antenna tuning techniques to address these conditional changes. In a closed loop tuning scheme, the mismatch sensing unit tracks the health of the antenna and provides a feedback signal that reflects the actual situation.

The mismatch sensing unit compares the VSWR (the power amplitude reflected back to the antenna) with the transmit power and adjusts the impedance tuning circuit. The tuning algorithm allows the tunable component to continuously track environmental conditions under various conditions of use and adjust the impedance to an optimum value.

Theory is useful, but the biggest obstacle to implementing adaptive antenna tuning in cellular phones is the lack of electrical parameters. High-performance reactive components with low regulation, low loss and wide adjustment ratio. In terms of "high performance", the most challenging component requirements are power handling and linearity. For example, a GSM antenna must typically be capable of handling transmission power up to +33 dBm, but under mismatch conditions, the tuning element actually needs to process RF signals up to 30 Vpk or up to +40 dBm.

In order to find better tuning materials, a lot of research has been done in the past few years. For example, to achieve tunable antennas and filters, some researchers have used microelectromechanical systems (MEMS) and ferroelectric materials technologies (such as barium titanate, BST). Despite these developments, these technologies still face enormous technical and manufacturing barriers. To fully meet the needs of antenna tuning, designers need technologies that support mass production, preferably mature technologies.

Antennas are complex devices, and antennas embedded in cell phones are no exception. Since the RF transceiver of the mobile phone is designed for 50Ω impedance, its antenna is also preferably 50Ω impedance across the entire frequency band. But in fact, this is rarely done, because according to the law of electromagnetics, mobile phones are inherently characterized by narrow antenna bandwidth, poor matching and low radiation efficiency. Thus, the antenna is typically designed for non-50Ω impedance throughout the band, and for multi-band antennas, the typical value for VSWR is 2:1 or 3:1. Antenna impedance is also affected by other factors, such as the way the phone is held (ie, the "head hand effect"). The user's body also absorbs power, further limiting the radiation efficiency of the antenna. Cellular antennas typically operate with a VSWR better than 3:1, but if the user places their finger on the antenna transmitter, the VSWR may increase to 9:1. If all devices in the signal chain are designed to be 1:1 at VSWR, then problems may occur. Figure 1 shows the effect of the "head hand effect", which refers to the antenna's detuning when the hand is placed near the antenna transmitter. This effect changes the resonant frequency of the antenna, causing the antenna to be heavily mismatched at the predetermined operating frequency. When the user places his hand near the antenna transmitter, the resonant frequency of the antenna changes, resulting in a mismatch at the predetermined operating frequency.

When the antenna port is in a mismatched state, the RF performance drops rapidly. In particular, if the antenna is in the state of VSWR=3:1 (common design specification for multi-band antennas), approximately 1.25dB of power is immediately lost due to reflection; if the VSWR reaches 5:1, the mismatch loss will increase. To 2.55dB. Such a mismatch will also reduce the power amplifier (PA) output power, further reducing the radiated power. If the phone's narrowband duplex or receive filter is not terminated to its characteristic impedance, ripple will also appear in its passband, with an additional loss of up to 2dB.

Head and hand effects, mismatch losses in the antenna, ripple in the RF filter passband, and PA output power drop all have a significant impact on the amount of power emitted by the handset antenna. The consequences of the resonance point offset are shortened battery life, reduced link range, and reduced call quality, resulting in an increase in the number of dropped calls. To solve this problem, many service providers are TRP (total radiated power) and TIS (omnidirectional sensitivity) specifications have been established. To meet these specifications, the actual use (for heads and hands) must be simulated when testing the phone, rather than simply conducting a conductivity measurement in a 50 Ω environment or testing the phone in free space.

Adaptive antenna tuning is expected to be a good way to meet these new TRP and TIS specifications. The antenna tuner can be 50Ω independent of the environment and allow the rest of the system to operate under optimal conditions. Although the antenna tuner introduces some additional insertion loss, adaptive antenna tuning will greatly reduce the total insertion loss from the tuner input to the antenna input, which improves performance, compared to the case where no antenna tuner is added.

Antennas for multi-band transceiver systems require an adaptive antenna tuning circuit that guarantees performance over the entire band up to the band edge, actively tracking the resonance point offset and quickly retuning the antenna's resonance point. This tuned circuit must have extremely high linearity to avoid harmonics or intermodulation distortion. It should also be small and durable. The tuning ratio should be at least 3:1 and the power consumption of the entire circuit should be less than 1mA. In order to effectively improve performance, the insertion loss of the circuit must be small, so the quality factor (Q) should be at least 50.

Peregrine Semiconductor's designers have developed DuNE technology based on the company's UltraCMOS process and HaRP's innovative design, and have filed a patent. Designed to meet antenna tuning requirements, the DuNE Digital Adjustable Capacitor (DTC) chip includes high Q capacitors and a serial interface with low bias voltage and high linearity. The device is packaged in a flip-chip package and the DiNE DTC for GSM/WCDMA handsets is 1.36 x 0.81 mm.

In summary, the following technical solutions are still used to solve the problem of the hand mode call: 1. The antenna resonance is adjusted to the head mode and the free space is compatible with the two modes; 2. The hand mode is dominant, and the free space performance is sacrificed; 3. Focus on free space and take care of the head hand model. In addition, due to the basic metallization and miniaturization of the mobile phone, the antenna space is very small, and its performance is not particularly good, so it is difficult to take into account the performance of various modes at the same time, which causes the call experience problem to still exist.

Disclosure of invention

The object of the present invention is to provide a method and system for enhancing a call experience, which uses the information of the distance sensor and the modem to determine the call state of the mobile phone, for example, in a free space state, a hands-free state or a head-hand state, and then according to the judgment result. Debug the working mode of the antenna to enhance the user experience, and this method does not increase the hardware cost.

In order to achieve the above object, the present invention is achieved by the following technical solutions:

A method for enhancing a call experience, characterized in that it comprises the following steps:

S1, determining whether the mobile phone is in a call state, if yes, proceeding to step S2, if not, performing no operation;

S2, respectively detecting whether the mobile phone is close to the head, whether it is in the hands-free, and whether the earphone is inserted;

S3, if the mobile phone is close to the head, it is determined that the mobile phone is in the first-hand mode, then step S4 is performed, if the mobile phone is in the hands-free state or the headset is inserted, it is determined that the mobile phone is in the free mode, then step S5 is performed;

S4, adjusting the resonance of the mobile phone antenna to the head-hand state working mode, and returning to step S1 to determine;

S5. Adjust the resonance of the mobile phone antenna to the free space state working mode, and return to step S1 to judge.

The above method for enhancing the call experience, wherein in the step S2:

Use the distance sensor built into the phone to determine if the phone is close to the head.

The above method for enhancing the call experience, wherein the step S1 is as follows:

Determine whether the mobile phone is in a call state by the working status of the modem.

The above method for enhancing the call experience, wherein in the step S2:

Determine whether the phone is in the hands-free state by detecting whether the screen of the mobile phone is off.

The above method for enhancing the call experience, wherein in the step S2:

Use the phone CPU to determine if there is a headset plugged in.

The above method for enhancing the call experience, wherein:

The mobile phone antenna is an adaptive tuning antenna.

A system for enhancing a call experience, characterized in that it comprises:

a call judging module, configured to determine whether the mobile phone is in a call state;

a mobile phone call state detecting module, configured to detect whether the mobile phone is close to the head, whether it is in a hands-free manner, and whether an earphone is inserted;

a mobile phone call state judging module, configured to determine whether the mobile phone is in a head-to-head mode or a free mode;

Cell phone antenna

The mobile phone antenna adapting module is configured to adjust the mobile phone antenna resonance to a required head-hand state working mode or a free-space state working mode according to the state of the mobile phone call state.

A system for enhancing a call experience, wherein the mobile phone antenna adaptation module comprises:

The mismatch sensing unit is connected to the mobile phone call state judging module;

Coordinating the arithmetic unit to connect the mismatched sensing unit;

The impedance tuner is connected to the coordination arithmetic unit, the mismatch sensing unit, and the mobile phone antenna.

The above enhanced call experience system, wherein:

The mobile phone antenna adapting module is connected to the mobile phone call state judging module through an adapted data detecting module.

The above enhanced call experience system, wherein:

a location information acquiring unit, configured to acquire real-time location information of the mobile phone;

An information sending unit, configured to send real-time location information to the peer mobile phone;

An information receiving unit, configured to receive real-time location information;

a verification unit, configured to verify whether the real-time location information is sent by the peer mobile phone;

a call selection unit, configured to select whether to conduct a call according to the verification result;

Wherein, the verification unit comprises:

a storage module, configured to store historical location information of the peer mobile phone;

a location information determining module, configured to determine whether the received information is real-time location information;

The comparison module is configured to compare the real-time location information with the historical location information, and determine whether the real-time location information is sent by the peer mobile phone;

The information sending unit includes:

a time setting module for setting an interval of sending;

The timing sending module is configured to periodically send real-time location information to the peer mobile phone according to the interval time.

The invention has the following advantages compared with the prior art

1. Using the information of the distance sensor and the modem to judge the call state of the mobile phone, for example, in a free space state, a hands-free state or a head-hand state, and then debug the working mode of the antenna according to the judgment result, thereby improving the user experience;

2. No increase in hardware costs;

3. By obtaining the location information of the mobile phone and verifying the location information, so as to make a subsequent call, effectively prevent

The time when the third party eavesdropped on the call information occurs;

Improve the security of mobile phone calls.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic diagram of a prior art when a user places a hand near an antenna transmitter, the resonant frequency of the antenna changes;

2 is a flow chart of a method of the present invention;

3 is a block diagram of a mobile phone antenna adaptation module according to the present invention;

Figure 4 is a block diagram of the system of the present invention;

FIG. 5 is a flowchart of a method for preventing eavesdropping in an embodiment of the present invention; FIG.

6 is a schematic structural diagram of a mobile phone according to another embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a verification unit in a mobile phone according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic structural diagram of an information sending unit in a mobile phone according to an embodiment of the present invention; FIG.

FIG. 9 is a specific flowchart of sending real-time location information of a local mobile phone to a peer mobile phone according to an embodiment of the present invention.

The best way to implement the invention

The present invention will be further described below in detail with reference to the accompanying drawings.

The following description of the at least one exemplary embodiment is merely illustrative and is in no way

Techniques, methods and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but the techniques, methods and apparatus should be considered as part of the specification, where appropriate.

In all of the examples shown and discussed herein, any specific values are to be construed as illustrative only and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that similar reference numerals and letters indicate similar items in the following figures, and therefore, once an item is defined in one figure, it is not required to be further discussed in the subsequent figures.

As shown in FIG. 2, the present invention proposes a method for enhancing a call experience, which includes the following steps:

S1, determining whether the mobile phone is in a call state, if yes, proceeding to step S2, if not, not performing any What to do;

S2, respectively detecting whether the mobile phone is close to the head, whether it is in the hands-free, and whether the earphone is inserted;

S3, if the mobile phone is close to the head, it is determined that the mobile phone is in the first-hand mode, then step S4 is performed, if the mobile phone is in the hands-free state or the headset is inserted, it is determined that the mobile phone is in the free mode, then step S5 is performed;

S4, adjusting the resonance of the mobile phone antenna to the head-hand state working mode, and returning to step S1 to determine;

S5. Adjust the resonance of the mobile phone antenna to the free space state working mode, and return to step S1 to judge.

In this embodiment, in the method for enhancing the call experience, in the step S2, it is determined whether the mobile phone is close to the head by using a distance sensor built in the mobile phone.

In this embodiment, in step S1, it is determined whether the mobile phone is in a call state by the working state of the modem.

In this embodiment, in step S2, it is determined whether the mobile phone is in the hands-free state by detecting whether the mobile phone screen is off.

In this embodiment, in the step S2, it is determined by the mobile phone CPU whether or not the earphone is inserted.

The method for enhancing a call experience, wherein: preferably, the mobile phone antenna is an adaptive tuning antenna.

The method of the invention utilizes the information of the distance sensor and the modem to determine the call state of the mobile phone, for example, in a free space state, a hands-free state or a head-hand state, and then debugs the working mode of the antenna according to the judgment result, thereby improving the user experience, and not Increase hardware costs.

With the development of mobile communication, when communication signals are transmitted and received through the mobile network, the communication network is easily eavesdropped by others during use, which will cause the user's privacy to be exposed and thus subject to varying degrees of Shanghai, and when When a large number of industrial information enterprises use the above-mentioned industrial information through the mobile communication network, if the information is eavesdropped, the enterprise will suffer serious losses, so the eavesdropping problem in the mobile communication process needs to be solved.

Therefore, in some embodiments, the present invention further provides a method for preventing eavesdropping during the call, which may be performed after the step S4 or the step S5 is performed and before the step S1 is returned. The process includes the following steps, as shown in the figure. 5 shows:

S61. Acquire real-time location information of the mobile phone, for example, obtain a real-time location information of the current mobile phone by using the GPS positioning device provided by the mobile phone;

In some embodiments, the location information may include an identifier, a current mobile number, a location, or a peer mobile number;

S62: Send the real-time location information to the peer mobile phone. In this embodiment, the call is initiated in real time through the GPRS network or the CDMA network, and the real-time information is sent to the peer mobile phone with the binding number;

S63. Receive real-time location information. In this embodiment, the real-time location information sent by the peer mobile phone through the GPRS network or the CDMA network is also used.

S64. Verify that the real-time location information is sent by the peer mobile phone. In some embodiments, the mobile phone is provided with an information verification unit, which can verify each type of information, and determine whether the real-time location information is to be in a call with the mobile phone. Sent by the opposite mobile phone;

For example, the information verification unit may verify, according to the mobile phone number, the real-time location information or the identifier included in the real-time location information, whether the location information is sent by the peer mobile phone that wants to make a call with the mobile phone;

S65. Select whether to conduct a call according to the verification result. For example, if the location information is sent to the peer mobile phone by using the verification, the verification result may be sent to the opposite mobile phone, so that the opposite mobile phone and the mobile phone perform a call. If the location information is not sent by the peer mobile phone, you can choose to abandon the call. If the real-time location information received by one of the two mobile phones is sent by the mobile phone during the call, the call can be continued. If the mobile phone is not sent by the mobile phone, the call can be interrupted.

It should be noted that both the mobile phone and the opposite mobile phone that have made the call should have real-time location information, send and receive real-time location information of the other party's mobile phone, and verify the real-time location information of the other party's mobile phone and verify whether the real-time location information is the other party's mobile phone. The function that is sent and made a call based on the result of the verification.

In the present invention, the anti-eavesdrop mode is a user-selectable function, preferably set by software, for example, in an existing mobile phone, an anti-eavesdropping call mode is set by software, when the mobile phone starts the call mode. That means the mobile phone and the opposite phone of the selected number enter the anti-eavesdrop mode.

As shown in FIG. 9, the step S62 includes the following steps:

S621, setting a transmission interval time;

S622: Send real-time location information to the peer mobile phone periodically according to the interval time.

In some embodiments, the real-time location information can be sent to the peer mobile phone every time interval, for example, The real-time location information of the local mobile phone is sent to the opposite mobile phone every 30 seconds.

The step S64 includes the following steps:

S641. Store historical location information of the mobile phone. For example, the peer mobile phone may store historical location information of the local mobile phone according to the historical mobile range of the current mobile phone.

In an embodiment, during the call, the mobile phone shell collects the real-time location information of the current local device and sends it to the opposite mobile phone, and the remote mobile phone shell receives the real-time location information, and saves the information to the local, because the call is in progress. The two users of the state maintain a certain continuity. Therefore, the collected data can determine whether the user is in a normal call state. When a third-party user taps, the location information must be confirmed with one of the two. If the location information exceeds the threshold before the previous information, the hop can be confirmed as a third-party mobile phone, and the call can be selected to end the call to ensure the security of the call.

S642, determining whether the received information is real-time location information, for example, determining whether the location information is real-time location information by using an identifier of the location information, a mobile phone number, or location information;

S643, comparing the real-time location information with the historical location information, determining whether the real-time location information is sent by the peer mobile phone, and when the peer mobile phone receives the real-time location information sent by the local mobile phone, engraving the real-time location information and history The location information is not correct to determine whether the real-time location information is sent by the peer mobile phone.

In an embodiment, after the step S643, the method may further include:

S644. If the location information is verified to be sent by a third-party mobile phone, an alarm information is generated and displayed. For example, during the call, each mobile phone can separately send real-time location information to the other party, and receive real-time location information sent by the other party. When the verification is obtained, the real-time location information hopping amplitude is greater than the set threshold, then it can be determined that there is a third-party mobile phone. Eavesdropping on the call, and then generating an alarm message and displaying the location information of the third party mobile phone, for example, displaying the location information, mobile phone number, etc. of the third party mobile phone.

As shown in FIG. 3, the present invention further provides a system for enhancing a call experience, which includes a call determination module 1, a mobile phone call state detection module 2, a mobile phone call state determination module 3, a mobile phone antenna adaptation module 4, and a mobile phone antenna 5. .

The call determination module 1 is configured to determine whether the mobile phone is in a call state.

The mobile phone call state detecting module 2 is configured to detect whether the mobile phone is close to the head, whether it is in the hands-free, and whether the earphone is inserted.

The mobile phone call state determining module 3 is configured to determine whether the mobile phone is in a head-to-head mode or a free mode.

The mobile phone antenna adapting module 4 is configured to adjust the mobile phone antenna 5 to a required head-hand state working mode or a free-space state working mode according to the state of the mobile phone call state.

As shown in FIG. 3, the mobile phone antenna adaptation module 4 includes: a mismatch sensing unit 41, a connection mobile phone call state determination module 2, a coordination operation unit 43, a connection mismatch sensing unit 41, and an impedance tuner. 42. The coordination arithmetic unit 43, the mismatch sensing unit 41, and the mobile phone antenna 5 are respectively connected.

In this embodiment, the mobile phone antenna adaptation module 4 is connected to the mobile phone call state determination module 3 through an adaptation data detection module, and the adaptation data detection module is configured to sense mismatch data information in the current call state of the mobile phone.

As shown in FIG. 6, the system for enhancing the call experience in this embodiment further includes:

The location information obtaining unit 6 is configured to acquire real-time location information of the mobile phone.

The information sending unit 7 is configured to send real-time location information to the peer mobile phone;

The information receiving unit 8 is configured to receive the real-time location information, and the verification unit 9 is configured to verify whether the real-time location information is sent by the peer mobile phone.

The call selection unit 10 is configured to select whether to make a call according to the verification result.

As shown in FIG. 7, the verification unit includes:

a storage module 91, configured to store historical location information of the peer mobile phone;

The location information determining module 92 is configured to determine whether the received information is real-time location information.

The comparison module 93 is configured to compare the real-time location information with the historical location information, and determine whether the real-time location information is sent by the peer mobile phone.

As shown in FIG. 8, the information transmitting unit 7 includes: a time setting module 71, configured to set an interval time for sending; and a timing sending module 72, configured to periodically send real-time location information to the pair according to the interval time. Mobile phone.

In some embodiments, the system for enhancing the call experience may further include a display unit 11 configured to generate and display the alarm information according to the verification result of the location information sent by the third-party mobile phone.

For example, in the foregoing embodiment, the received real-time location information may be verified by the peer mobile phone to determine whether there is a third-party mobile phone eavesdropping call. If a third-party mobile phone is actually eavesdropping, the alarm information is generated and passed through the display unit 11. Display the location information of the third-party mobile phone, such as the location information of the third-party mobile phone, the mobile phone number, and the like.

In other embodiments, the system for enhancing the call experience may further include the anti-eavesdrop call mode enabling unit 12 used in conjunction with the display unit 11, enabling the anti-eavesdropping call mode to make a call to the peer mobile phone.

For example, the above solution may be configured by setting an affection call mode or a call transfer call mode in an existing mobile phone. Similarly, in the mobile phone, an anti-eavesdrop call mode enabling unit 12 may be set by software, when the mobile phone needs to be activated. In the eavesdropping call mode, the anti-eavesdrop call mode enabling unit 12 is activated, and then the subsequent steps of real-time location information transmission, reception, verification, and the like are performed.

Although the present invention has been described in detail by the preferred embodiments thereof, it should be understood that the foregoing description should not be construed as limiting. Various modifications and alterations of the present invention will be apparent to those skilled in the art. Therefore, the scope of the invention should be defined by the appended claims.

Claims (10)

A method for enhancing a call experience, characterized in that it comprises the following steps: S1, determining whether the mobile phone is in a call state, if yes, proceeding to step S2, if not, performing no operation; S2, respectively detecting whether the mobile phone is close to the head, whether it is in the hands-free, and whether the earphone is inserted; S3, if the mobile phone is close to the head, it is determined that the mobile phone is in the first-hand mode, then step S4 is performed, if the mobile phone is in the hands-free state or the headset is inserted, it is determined that the mobile phone is in the free mode, then step S5 is performed; S4, adjusting the resonance of the mobile phone antenna to the head-hand state working mode, and returning to step S1 to determine; S5. Adjust the resonance of the mobile phone antenna to the free space state working mode, and return to step S1 to judge. The method of enhancing a call experience according to claim 1, wherein in said step S2: Use the distance sensor built into the phone to determine if the phone is close to the head. The method of enhancing a call experience according to claim 1, wherein in said step S1: Determine whether the mobile phone is in a call state by the working status of the modem. The method of enhancing a call experience according to claim 1, wherein in said step S2: Determine whether the phone is in the hands-free state by detecting whether the screen of the mobile phone is off. The method of enhancing a call experience according to claim 1, wherein in said step S2: Use the phone CPU to determine if there is a headset plugged in. The method of enhancing a call experience of claim 1 wherein: The mobile phone antenna is an adaptive tuning antenna. A system for enhancing a call experience, comprising: a call judging module, configured to determine whether the mobile phone is in a call state; a mobile phone call state detecting module, configured to detect whether the mobile phone is close to the head, whether it is in a hands-free manner, and whether an earphone is inserted; a mobile phone call state judging module, configured to determine whether the mobile phone is in a head-to-head mode or a free mode; Cell phone antenna The mobile phone antenna adapting module is configured to adjust the mobile phone antenna resonance to a required head-hand state working mode or a free-space state working mode according to the state of the mobile phone call state. The system for enhancing the call experience according to claim 7, wherein the mobile phone antenna adaptation module comprises: The mismatch sensing unit is connected to the mobile phone call state judging module; Coordinating the arithmetic unit to connect the mismatched sensing unit; The impedance tuner is connected to the coordination arithmetic unit, the mismatch sensing unit, and the mobile phone antenna. A system for enhancing a call experience according to claim 8 wherein: The mobile phone antenna adapting module is connected to the mobile phone call state judging module through an adapted data detecting module. The system for enhancing a call experience according to claim 7, further comprising: a location information acquiring unit, configured to acquire real-time location information of the mobile phone; An information sending unit, configured to send real-time location information to the peer mobile phone; An information receiving unit, configured to receive real-time location information; a verification unit, configured to verify whether the real-time location information is sent by the peer mobile phone; a call selection unit, configured to select whether to conduct a call according to the verification result; Wherein, the verification unit comprises: a storage module, configured to store historical location information of the peer mobile phone; a location information determining module, configured to determine whether the received information is real-time location information; The comparison module is configured to compare the real-time location information with the historical location information, and determine whether the real-time location information is sent by the peer mobile phone; The information sending unit includes: a time setting module for setting an interval of sending; The timing sending module is configured to periodically send real-time location information to the peer mobile phone according to the interval time.

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