CN102883006A - Mobile terminal and communication method thereof - Google Patents
Mobile terminal and communication method thereof Download PDFInfo
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- CN102883006A CN102883006A CN2012103627294A CN201210362729A CN102883006A CN 102883006 A CN102883006 A CN 102883006A CN 2012103627294 A CN2012103627294 A CN 2012103627294A CN 201210362729 A CN201210362729 A CN 201210362729A CN 102883006 A CN102883006 A CN 102883006A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
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- Engineering & Computer Science (AREA)
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- Environmental & Geological Engineering (AREA)
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Abstract
The invention discloses a mobile terminal communication method. An external antenna is arranged in a protective back cover of a mobile terminal. The method comprises the following steps that: the mobile terminal detects signal intensity in a current environment; and the mobile terminal is controlled to use an internal antenna or the external antenna to perform wireless communication according to the detected signal intensity value. The invention also discloses the mobile terminal. By the method and the mobile terminal, a good communication effect can be achieved in an environment which has low signal quality, so that communication quality can be improved.
Description
Technical Field
The invention relates to the technical field of mobile terminals, in particular to a mobile terminal and a communication method thereof.
Background
With the rapid development of modern communication technology and the increase of information demand of people, mobile communication devices such as mobile phones have become indispensable communication tools in daily life. The user as a mobile terminal user requires the mobile terminal to have the traditional portability, and also puts higher requirements on the appearance, the volume and the like of the mobile terminal such as a mobile phone, so that the characteristics of fashionable appearance, small volume and extremely thin mobile terminal in the current market are created. However, the reduction of volume and thickness will result in the degradation of antenna performance of communication products, thereby affecting the communication of mobile terminals, especially in areas where signal coverage is not good, such as: signal blind areas, rural areas and field areas formed by buildings in cities, and how mobile terminals such as mobile phones realize good communication in the weak signal areas become an urgent problem to be solved in the field of mobile terminals.
At present, the introduction of an external antenna is an effective method for solving the problem that a weak signal area cannot realize good communication, but in the existing technical scheme, an available external antenna needs to be assembled by an attached small object temporarily, or a user needs to judge the intensity of a communication signal in the current environment and manually judge whether the external antenna needs to be accessed, if so, the carried external antenna is accessed to a mobile terminal, and if not, the external antenna is taken out from the mobile terminal. And once after the external antenna is accessed, no matter the intensity of the communication signal under the current environment is strong or weak, the external antenna can only be used for communication, and if the mobile terminal needs to use the antenna of the mobile terminal, the external antenna needs to be manually pulled out, so that the internal or external antenna cannot be intelligently selected for communication according to the intensity of the communication signal under the current environment, and thus, the user experience is reduced. In addition, in the prior art, the external antenna is physically accessed into the mobile terminal and pulled out of the mobile terminal for multiple times, the physical access interface is easy to wear, and the reliability and effective use time efficiency of the external antenna are tested; in addition, the external antenna needs to be carried around when not in use, which also reduces the user experience.
Disclosure of Invention
In view of the above, it is a primary object of the present invention to provide a mobile terminal and a communication method thereof, which can achieve good communication in an environment with poor signal quality, thereby improving the communication quality.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a mobile terminal communication method, which is characterized in that an external antenna is arranged in a protective rear shell of a mobile terminal; the method comprises the following steps:
the mobile terminal detects the signal intensity under the current environment;
and controlling the mobile terminal to use an internal antenna or an external antenna to carry out wireless communication according to the detected signal intensity value.
In the above scheme, the controlling the mobile terminal to use the internal antenna or the external antenna to perform wireless communication according to the detected signal strength value is:
judging whether the strength value of the currently received signal is greater than a set threshold value, if so, using a built-in antenna to carry out wireless communication by the mobile terminal; if the connection is not more than the preset connection threshold, judging whether the external antenna is successfully connected with the mobile terminal main body, if not, using the internal antenna to carry out wireless communication by the mobile terminal, and if so, switching the mobile terminal to the external antenna on the protective rear shell to carry out wireless communication.
In the above scheme, the signal strength is at least one of a received signal strength indicator RSSI, a received signal code power RSCP, and a chip energy/interference spectral density Ec/Io.
The invention also provides a mobile terminal, which comprises a mobile terminal main body and a protective rear shell; the protective rear shell is buckled on the mobile terminal main body and is communicated with the mobile terminal main body through an electrical connection point; an external antenna is arranged on the protective rear shell; wherein,
the mobile terminal main body is used for detecting the signal intensity in the current environment and controlling the mobile terminal to use an internal antenna or an external antenna to carry out wireless communication according to the detected signal intensity value;
the protection rear shell is used for protecting the mobile terminal main body and providing an external antenna for the mobile terminal main body;
and the external antenna is used for receiving and transmitting signals.
In the above scheme, the mobile terminal main body includes a communication module unit, a signal strength detection unit, a radio frequency circuit control unit, an antenna selection unit, and an external antenna detection unit; wherein,
the communication module unit is used for receiving and sending signals through an internal antenna or an external antenna of the mobile terminal body;
the signal intensity detection unit is used for detecting the signal intensity in the current environment and sending the detected signal intensity value to the radio frequency circuit control unit;
the external antenna detection unit is used for detecting whether the external antenna on the protective rear shell is successfully accessed to the mobile terminal main body or not and feeding back a detection result to the radio frequency circuit control unit;
the radio frequency circuit control unit is used for sending an antenna switching instruction to the antenna selection unit according to the signal strength value sent by the signal strength detection unit and the detection result of the external antenna detection unit;
and the antenna selection unit is used for switching the antenna according to the antenna switching instruction sent by the radio frequency circuit control unit.
In the above solution, the mobile terminal main body further includes a first electrical connection point, which is used for electrically connecting the radio frequency path of the mobile terminal main body with a second electrical connection point on the protective rear shell;
the protection rear shell further comprises a second electrical connection point which is used for electrically connecting the external antenna with the first electrical connection point on the mobile terminal main body.
In the above scheme, the first electrical connection point and the second electrical connection point are probes or metal elastic pieces.
In the above scheme, the external antenna is a monopole antenna, a helical antenna, a PCB printed helical antenna, or a telescopic antenna.
In the above scheme, the antenna selection unit selects the internal antenna or the external antenna by switching through the antenna selection switch.
In the above scheme, the radio frequency circuit control unit is further configured to report the information of the antenna switching to the AP side of the application processor while sending the antenna switching instruction to the antenna selection unit.
Compared with the prior art, the mobile terminal and the communication method thereof provided by the invention have the advantages that the external antenna is used as a part of the mobile terminal protection rear shell, so that the use habit of a mobile terminal user is better met, and the mobile terminal does not need to spend extra energy to carry or assemble the external antenna; in addition, the protective rear shell protects the mobile terminal and provides an external antenna for the mobile terminal, and the external antenna is well protected as a part of the protective rear shell, so that the usability is good; meanwhile, the invention can intelligently switch between the internal antenna and the external antenna of the mobile terminal according to the strength of the communication signal strength in the current environment, effectively utilizes the characteristics of wide frequency band range, stable received signal and high antenna gain of the external antenna under the condition of weak signal strength, not only can realize good communication of the mobile terminal under the weak signal, but also has low cost and is easy to realize.
Drawings
Fig. 1 is a flow chart illustrating a communication method of a mobile terminal according to the present invention;
fig. 2 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an implementation principle of an antenna selection switch according to the present invention;
fig. 4 is a schematic flow chart illustrating an implementation of a mobile terminal communication method according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a mobile terminal in a specific application environment according to the present invention.
Detailed Description
The basic idea of the invention is as follows: and an external antenna is arranged in a protective rear shell of the mobile terminal, and the communication antenna used by the mobile terminal is automatically selected according to the detection of the mobile terminal on the strength of the communication signal in the current environment.
Specifically, when the signal is detected to be good, the built-in antenna of the mobile terminal is used for receiving and sending electromagnetic wave signals to carry out wireless communication; and when the signal is detected to be weak, the mobile terminal is switched to an external antenna to transmit and receive electromagnetic wave signals, so that wireless communication is completed, and good communication of the mobile terminal under the weak signal is realized.
Fig. 1 is a schematic flow chart of a mobile terminal communication method according to the present invention, and as shown in fig. 1, the mobile terminal communication method includes the following steps:
step 101: the mobile terminal detects the signal intensity under the current environment;
wherein, the signal strength can be measured by indexes such as RSSI, RSCP, Ec/Io and the like;
step 102: the mobile terminal judges the strength of the signal strength in the current communication environment according to the detected signal strength value, and if the signal strength is good, the step 103 is executed; if the signal strength is weak, executing step 104;
specifically, the method for determining the strength of the signal strength in the current environment includes: if the Received Signal Strength Indication (RSSI) value is larger than-102 dBm, judging that the Signal Strength of the current environment is good; and if the received RSSI value is less than-102 dBm, judging that the current environment signal strength is weak. The threshold value for judging the RSSI signal strength can be preset in the mobile terminal and is not limited to-102 dBm; the Signal strength may be measured by using, in addition to the RSSI index, Received Signal Code Power (RSCP), chip energy/interference spectrum density (Ec/Io), and other indexes.
Step 103: the mobile terminal uses a built-in antenna carried by the mobile terminal to carry out wireless communication, and the current processing flow is ended;
step 104: detecting whether the external antenna on the mobile terminal protection rear shell is successfully connected with the mobile terminal main body, and if the external antenna is not successfully connected with the mobile terminal main body, returning to the step 103; if the connection is successful, step 105 is executed;
here, the successful connection means that the connection is physically successful, that is, the electrical connection is connected;
step 105: the mobile terminal uses the external antenna on the protective rear shell to carry out wireless communication.
In the above processing flow, after determining whether to use the internal antenna or the external antenna, specifically, the antenna selection switch arranged inside the mobile terminal is used to control connection to the determined antenna, and then the determined antenna is used to perform signal transceiving.
Fig. 2 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention, and as shown in fig. 2, the mobile terminal includes: the mobile terminal comprises a mobile terminal main body 21 and a protective rear shell 22, wherein the protective rear shell 22 is buckled on the mobile terminal main body 21 and is communicated with the mobile terminal main body through an electrical connection point; further, an external antenna 23 is arranged on the protective rear shell 22; wherein,
the mobile terminal body 21 is configured to detect signal strength in a current environment, and control the mobile terminal to perform wireless communication using an internal antenna or an external antenna 23 according to the detected signal strength value.
Further, the mobile terminal main body 21 further includes a communication module unit 211, a signal strength detection unit 212, an external antenna detection unit 213, a radio frequency circuit control unit 214, an antenna selection unit 215, and a first electrical connection point 216; wherein,
the communication module unit 211 is configured to receive and transmit signals through an internal antenna or an external antenna 23 of the mobile terminal main body 21;
here, the signal includes a voice signal, a video signal, a text signal, an image signal, and the like.
The signal strength detecting unit 212 is configured to detect the strength of the signal strength in the current environment, and send the detected signal strength value to the radio frequency circuit control unit 214;
here, the specific operation is: the present signal strength is balanced according to the signal strength of the signal transmitted from the nearby base station detected by the mobile terminal body 21, and then the detected signal strength value is transmitted to the radio circuit control unit 214 through the I2C interface. The RSSI index can be used for measuring the signal strength, and indexes such as RSCP, Ec/Io and the like can be used for measuring the signal strength.
The external antenna detection unit 213 is configured to detect whether the external antenna 23 on the protective rear shell is successfully accessed to the mobile terminal main body 21, and feed back a detection result to the radio frequency circuit control unit 214;
here, after the protection rear case 22 is fastened to the mobile terminal main body 21, the first electrical connection point 216 on the mobile terminal main body 21 is connected to the second electrical connection point 221 on the protection rear case 22, and at this time, the level of the first electrical connection point 216 is pulled down from high; correspondingly, the external antenna detection unit 213 may determine whether the external antenna 23 is connected by detecting the level at the first electrical connection point 216 of the mobile terminal main body, and then feed back the detection result of the external antenna connection state to the rf circuit control unit 214 through the I2C interface.
The rf circuit control unit 214 is configured to send an antenna switching instruction to the antenna selection unit 215 according to the signal strength value sent by the signal strength detection unit 212 and the detection result of the external antenna detection unit 213;
specifically, when the RSSI value transmitted from the signal strength detection unit 212 through the I2C interface is greater than the threshold value of-102 dBm, the radio frequency circuit control unit 214 determines that the signal strength is good in the current environment, sends an instruction for switching to the built-in antenna of the mobile terminal body to the antenna selection unit 215 through the I2C interface, and receives and transmits signals using the built-in antenna of the mobile terminal; when the RSSI value transmitted from the signal strength detecting unit 212 through the I2C interface is smaller than the threshold value of-102 dBm, the rf circuit control unit 214 determines that the signal strength is weak in the current environment, and then, according to the detection result reported by the external antenna detecting unit 213, the following operations are performed: if the external antenna detection unit 213 reports that the external antenna is successfully accessed, the radio frequency circuit control unit 214 sends an instruction for switching to the external antenna 23 to the antenna selection unit 215 through the I2C interface, and notifies the antenna selection unit 215 to switch to the external antenna 23 to receive and send signals; if the external antenna detection unit 213 reports that the external antenna is not successfully accessed, the radio frequency circuit control unit 214 does not send an antenna switching instruction, and keeps using the internal antenna of the mobile terminal body to receive and send signals;
the rf circuit control unit 214 sends an antenna switching instruction to the antenna selection unit 215, and simultaneously reports information of switching the antenna to an Application Processor (AP) side, and prompts a user to make a corresponding preparation through a User Interface (UI), for example: when the radio frequency circuit control unit 214 sends an instruction to switch to the external antenna, the AP side gives a prompt to the user through the UI, and the user can pull out the external antenna such as a rod antenna; when an instruction for switching to the built-in antenna of the mobile terminal body is sent, a user can contract the external antenna such as a telescopic antenna into the protective rear shell; the RSSI signal strength decision threshold value here is preset in the mobile terminal by the mobile terminal manufacturer, and is not limited to-102 dBm.
The antenna selection unit 215 is configured to perform antenna switching according to an antenna switching instruction sent by the radio frequency circuit control unit 214;
specifically, after the antenna selection unit 215 receives an instruction for switching to the external antenna 23 from the radio frequency circuit control unit 214, the antenna selection unit 215 sends a control signal through a general purpose Input/Output (GPIO) interface to switch the antenna selection switch to the external antenna 23; when the antenna selection unit 215 receives an instruction to switch to the internal antenna of the mobile terminal body from the radio circuit control unit 214, the antenna selection unit 214 transmits a control signal to switch the antenna selection switch to the internal antenna of the mobile terminal body 21.
Here, the antenna selection switch is composed of a main transmitting/receiving communication path p1, a switch logic control terminal p2, a terminal p3 connected to an internal antenna, and a terminal p4 connected to an external antenna, as shown in fig. 3. When the mobile terminal body 21 turns on one of the two antennas through the antenna selection switch, the specific control is realized by logic levels, that is, the switch logic control terminal p2 inputs logic levels with different high and low as the control signal for antenna selection. Specifically, because two antennas, namely an internal antenna and an external antenna, are selectable, the two-way switch using one logic control port can be implemented, for example: logic high represents the option of switching on the internal antenna, and logic low represents the option of switching on the external antenna, and the specific logic used can be set by the user. Of course, in practical application, the switch of the plurality of logic control interfaces may also be used to implement the antenna selection function, and the switch selects which antenna, so that the transceiver module of the mobile terminal is communicated with the selected antenna, and the selected antenna is used to transmit and receive signals, thereby completing the wireless communication.
The first electrical connection point 216 is used for electrically connecting a radio frequency path of the mobile terminal main body 21 with a second electrical connection point 221 on the protective rear shell 22 so as to form a complete signal receiving and transmitting system with the external antenna 22 on the protective rear shell;
the first electrical connection point 216 may be a probe, a metal spring, or other devices that can be used for electrical connection.
The protective rear shell 22 is used for protecting the mobile terminal main body 21 and providing an external antenna 23 for the mobile terminal main body 1.
Specifically, the protective rear shell 22 further includes: a second electrical connection point 221 and an external antenna 23; wherein,
the second electrical connection point 221 is used for electrically connecting the external antenna 23 with the first electrical connection point 216 on the mobile terminal main body 21, so as to form a complete signal transceiving system with a radio frequency circuit of the mobile terminal main body 21;
the second electrical connection point 221 may be a metal probe, a metal spring, or other various devices that can be used for electrical connection.
The external antenna 23 is used for receiving and transmitting signals;
here, the external antenna 23 may be a monopole antenna, a helical antenna, a PCB printed helical antenna, a whip antenna, or the like.
In practical applications, since the external antenna 23 has multiple optional types, and the shape of the antenna is different, how to dispose the external antenna on the protective rear shell can be determined according to the type of the external antenna used, for example: can be arranged on the protective rear shell, or pasted on the protective rear shell, or embedded on the protective rear shell; and the second electrical connection point 221 on the protective rear shell 22 is in electrical communication with the external antenna 23 on the protective rear shell 22.
Fig. 4 is a schematic diagram of an implementation flow of a mobile terminal communication method according to an embodiment of the present invention, and as shown in fig. 4, the mobile terminal communication method in this embodiment includes the following steps:
in step S401, the signal strength detection unit 212 of the mobile terminal detects the RSSI, which is a signal strength indicator in the current environment, and sends the detected RSSI value to the rf circuit control unit 214 through the I2C bus.
In step S402, the external antenna detection unit 213 determines whether the external antenna 23 on the protective rear shell is successfully accessed by detecting the level of the first electrical connection point 216, and sends the determination result to the radio frequency circuit control unit 214 through the I2C interface.
In practical applications, the execution order of steps S401 and S402 may be switched.
In step S403, the radio frequency circuit control unit 214 sends a corresponding antenna switching instruction according to the RSSI value of the signal strength indicator sent by the signal strength detection unit 212 and the external antenna access state fed back by the external antenna detection unit 213;
further, while sending an instruction for switching the antenna, reporting information of the antenna to the AP side, and giving an instruction to a user by the AP side through a UI;
here, if the RSSI value is greater than-102 dBm or the external antenna is not accessed, go to step 404; if the RSSI value is less than-102 dBm and the external antenna is accessed, step 405 is performed.
Specifically, the rf circuit control unit 214 determines a RSSI value of a signal strength indicator sent from the signal strength detection unit 212, and if the received RSSI value is greater than-102 dBm, it determines that the signal strength is good in the current environment, and the rf circuit control unit 214 sends an instruction to the antenna selection unit 215 to switch to the internal antenna of the mobile terminal body, and receives and sends signals using the internal antenna; if the received RSSI value is less than-102 dBm, the signal strength under the current environment is judged to be weak, and the following operations are carried out according to the detection result reported by the external antenna detection unit 213: if the external antenna detection unit 213 reports that the external antenna 23 is successfully accessed, the radio frequency circuit control unit 214 sends an instruction for switching to the external antenna to the antenna selection unit 215 through the I2C interface, and notifies the antenna selection unit 215 to switch to the external antenna 23; if the external antenna detection unit 213 reports that the external antenna 23 is not successfully accessed, the rf circuit control unit 214 does not send an antenna switching instruction, and keeps using the internal antenna of the mobile terminal body to receive and send signals. The rf circuit control unit 214 sends an antenna switching instruction to the antenna selection unit 215 and also reports to the AP side, and prompts the user to make a corresponding preparation through the UI.
In step S404, the antenna selection unit 215 sends a control signal to switch the antenna selection switch to the internal antenna of the mobile terminal body, and performs wireless communication using the internal antenna, thereby ending the current processing flow.
In step S405, the antenna selection unit 215 sends a control signal through the GPIO interface to switch the antenna selection switch to the external antenna 23 protecting the rear housing, and performs wireless communication using the external antenna.
Fig. 5 is a schematic structural diagram of a mobile terminal in a specific application environment, as shown in fig. 5, the mobile terminal includes a mobile terminal main body 21, a protective rear case 22, a first electrical connection point 216, a second electrical connection point 221, and an external antenna 23.
The first electrical connection point 216 is disposed at one side of the mobile terminal main body 21, and is used for electrically connecting a radio frequency path of the mobile terminal main body 21 with the second electrical connection point 221 on the protective rear shell 22, so as to form a complete signal transceiving system with the external antenna 23 on the protective rear shell 22.
The external antenna 23 and the second electrical connection point 221 are disposed on the same side of the protective rear shell 22, and are used for electrically connecting the external antenna 23 with the first electrical connection point 216 on the mobile terminal body 21, so as to form a complete signal transceiving system with the radio frequency circuit of the mobile terminal body 21.
The first electrical connection point 216 and the second electrical connection point 221 may be various devices that can be used for electrical connection, such as probes, metal elastic pieces, and the like.
The external antenna 23 shown in fig. 5 is a rod antenna, and in a specific application, the external antenna 23 may also be various types of antennas such as a monopole antenna, a helical antenna, a PCB printed helical antenna, and the like.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103627294A CN102883006A (en) | 2012-09-26 | 2012-09-26 | Mobile terminal and communication method thereof |
| PCT/CN2013/081370 WO2014048178A1 (en) | 2012-09-26 | 2013-08-13 | Mobile terminal and communication method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103627294A CN102883006A (en) | 2012-09-26 | 2012-09-26 | Mobile terminal and communication method thereof |
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| CN102883006A true CN102883006A (en) | 2013-01-16 |
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| WO (1) | WO2014048178A1 (en) |
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