CN102324948A - Terminal and method for adjusting position of antenna in terminal - Google Patents

Abstract

The invention provides a terminal and a position adjustment method of an antenna in the terminal. The terminal comprises a shell, at least one diversity antenna and a switching component, wherein the switching component is used for folding the diversity antenna in the shell or stretching the diversity antenna out of the shell. By adopting the technical scheme provided by the invention, the technical problem that the isolation of the diversity antenna is limited to the volume of the terminal existing in a related technology is solved; and thus, the technical effect of effectively enhancing the isolation between diversity antennas is achieved without sacrificing the volume of the terminal.

Description

Terminal and method for adjusting position of antenna in terminal

technical field

The present invention relates to the communication field, in particular, to a terminal and a method for adjusting the position of an antenna in the terminal.

Background technique

In the design of wireless communication terminal products, in order to achieve good user satisfaction and reduce the size of the terminal while maintaining or improving terminal functions, the antenna installed in the terminal, that is, the built-in antenna is widely used. For the built-in antenna, the circuit board of the wireless terminal is the reference ground of the antenna. When the signal is very weak, the mobile phone with the built-in antenna is more likely to lose the signal in a weak signal environment. Keeping the antenna away from other circuits of the mobile phone is the key to improving the transmission efficiency of the mobile phone antenna. Therefore, when laying out the antenna on the PCB, it is necessary to reserve a clearance area for the antenna, which increases the area of the PCB. In the design of diversity antennas, in order to achieve good diversity performance, especially good isolation between the two antennas, a relatively long distance between the two antennas is required. However, the continuous reduction of wireless terminal equipment makes it more difficult to realize the isolation of diversity antennas.

For the above-mentioned problems in related technologies, no effective solution has been proposed yet.

Contents of the invention

The main purpose of the present invention is to provide a terminal and a method for adjusting the position of an antenna in the terminal, so as to solve at least one of the above-mentioned problems.

According to one aspect of the present invention, a terminal is provided, including: a casing, at least one diversity antenna and a switch assembly, the switch assembly is used to fold and store the diversity antenna in the casing or unfold the diversity antenna out of the casing.

The terminal also includes: a detection component, which is used to generate a receiving signal and output it to the switch component when it is detected that the terminal is not communicating or that the signal quality strength of the terminal is not lower than the preset threshold, and when it is detected that the signal quality strength of the terminal has not reached When the threshold is preset, an extension signal is generated and output to the switch assembly; the switch assembly is used to receive the storage signal, fold and store the diversity antenna in the casing; or receive the extension signal, and expand the diversity antenna out of the casing.

An elastic traction member is arranged between the switch assembly and the diversity antenna; the switch assembly is closed, triggering the contraction of the elastic traction member, and folding and storing the diversity antenna in the housing; opening the switch assembly, triggering the expansion of the elastic traction member, and extending the diversity antenna case.

The above-mentioned terminal also includes: a storage component for storing the received signal field strength indication (Received Signal Strength Indicator, referred to as RSSI) value collected by the switch component to control the diversity antenna at a preset position point; a comparison component for comparing the RSSI value, and Generate a position adjustment signal according to the maximum RSSI value obtained by comparison; the switch component is also used to control the diversity antenna to adjust to a preset position point corresponding to the maximum RSSI value according to the position adjustment signal.

According to the position adjustment signal, the above switch assembly controls the diversity antenna to adjust to the preset position point corresponding to the maximum RSSI value through the elastic traction member.

According to another aspect of the present invention, a method for adjusting the position of an antenna in a terminal is provided, wherein the terminal includes: a casing, a switch assembly, and at least one diversity antenna, and the method includes: the switch assembly generates an open or close signal; The opening or closing signal generated by the component controls the diversity antenna to unfold and extend out of the casing or to be folded and stored in the casing.

The above-mentioned switch assembly generates an open or close signal, including: detecting the signal quality strength of the terminal and whether the terminal is communicating; when the detected signal quality strength does not reach a preset threshold or when the trigger switch assembly generates an open signal; and when detected When the signal quality strength of the terminal is not lower than the preset threshold or it is detected that the terminal is not communicating, the trigger switch component generates a shutdown signal.

The above-mentioned switch assembly generating an opening or closing signal includes: the switch assembly generates an opening or closing signal in response to an operation of an end user.

The above method also includes: obtaining the RSSI value collected by the switch component to control the diversity antenna at the preset position point; comparing the RSSI value, and generating a position adjustment instruction according to the maximum RSSI value obtained by comparison; the switch component controls the diversity antenna to adjust to The preset position point corresponding to the maximum RSSI value.

The present invention solves the technical problem in the related art that the isolation of the diversity antenna is limited by the volume of the terminal by adopting the technical means of arranging a switch assembly to store the diversity antenna in the housing or extending the diversity antenna out of the housing, thereby The technical effect of effectively increasing the isolation between diversity antennas is achieved without sacrificing the volume of the terminal.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

FIG. 1 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

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

FIG. 3 is a flow chart of a method for adjusting the position of an antenna in a terminal according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a terminal structure according to a preferred embodiment 2 of the present invention;

Fig. 5 is a schematic diagram of the state when the antenna is deployed based on the embodiment shown in Fig. 4;

Fig. 6 is a structural block diagram of a hardware circuit for controlling the position adjustment of the antenna according to the preferred embodiment 4 of the present invention;

Fig. 7 is a schematic flow chart of controlling the position adjustment of the antenna according to the preferred embodiment 4 of the present invention;

Fig. 8 is a flow chart of antenna deployment orientation adjustment according to preferred embodiment 4 of the present invention.

Detailed ways

Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

Fig. 1 is a schematic structural diagram of a terminal according to an embodiment of the present invention. As shown in Figure 1, the terminal includes: a housing 11, at least one diversity antenna 13 and a switch assembly 15, the switch assembly 15 is used to fold and store the diversity antenna 13 in the housing 11 or unfold the diversity antenna 13 out of the housing 11.

Through the above processing steps, the technical problem in the related art that the isolation of diversity antennas is limited by the terminal volume can be solved, thereby achieving the technical effect of effectively increasing the isolation between diversity antennas without sacrificing the terminal volume.

The switch assembly can be manually (manually) triggered to open or close, and can also be automatically opened, wherein the specific implementation of a preferred embodiment of the latter is as follows: As shown in Figure 2, the above-mentioned terminal can also include: a detection component 17, used When it is detected that the terminal is not communicating or the signal quality strength of the terminal is not lower than the preset threshold value, a storage signal is generated and output to the switch component, and when the signal quality strength of the terminal is detected not reaching the preset threshold value, a stretching signal is generated. The signal is output to the switch assembly 15; the switch assembly 15 is used to receive the storage signal and fold the diversity antenna 13 into the casing 11; or receive the extension signal to expand the diversity antenna 13 out of the casing 11.

In a specific application, as shown in FIG. 2 , an elastic traction member 19 is arranged between the switch assembly 15 and the diversity antenna 13; the switch assembly 15 is closed, triggering the contraction of the elastic traction member 19, and the diversity antenna 13 is folded and stored in the housing 11 Middle; the switch assembly 15 is opened, triggering the expansion of the elastic traction member 19, and expanding the diversity antenna 13 out of the housing 11.

In a specific application, as shown in FIG. 2, the above-mentioned terminal may also include: a storage component 21, which is used to store the RSSI value collected by the switch component 15 to control the diversity antenna 13 at a preset position point; a comparison component 23, which is used to compare the RSSI value , and generate a position adjustment signal according to the maximum RSSI value obtained by comparison; the switch assembly 15 is also used to control the diversity antenna 13 to adjust to a preset position point corresponding to the maximum RSSI value according to the position adjustment signal.

In a specific application, the switch assembly 15 controls the diversity antenna 13 to adjust to a preset position corresponding to the maximum RSSI value through the elastic traction member 19 according to the position adjustment signal.

The present invention also provides a method for adjusting the position of the antenna in the terminal, which is used to realize the functions of each component of the terminal, and the method includes the implementation and preferred implementation of the above method. Fig. 3 is a flowchart of a method for adjusting the position of an antenna in a terminal according to an embodiment of the present invention. Wherein, the terminal includes: a shell, a switch assembly and at least one diversity antenna. As shown in Figure 3, the method includes:

Step S302, the switch assembly generates an open or close signal;

Step S304, according to the opening or closing signal generated by the switch assembly, the diversity antenna is controlled to unfold and protrude from the casing or to be folded and stored in the casing.

Preferably, the switch assembly generates an open or close signal, including: detecting the signal quality strength of the terminal and whether the terminal is communicating; when the detected signal quality strength does not reach a preset threshold or when the trigger switch assembly generates an open signal; and when When the detected signal quality intensity is not lower than the preset threshold or it is detected that the terminal is not in communication, the trigger switch component generates a shutdown signal. Through the above process, automatic adjustment of the antenna position can be realized.

Preferably, the above-mentioned switch assembly generating an opening or closing signal includes: the switch assembly generating an opening or closing signal in response to an operation of an end user. Through the above process, the manual trigger switch assembly can be implemented to adjust the antenna position.

Preferably, the above method may further include: obtaining the RSSI value collected by the switch assembly to control the diversity antenna at a preset position; comparing the RSSI values, and generating a position adjustment instruction according to the maximum RSSI value obtained by comparison; the switch assembly controlling the diversity according to the position adjustment instruction The antenna is adjusted to the preset position point corresponding to the maximum RSSI value.

The above embodiments will be described in detail below in conjunction with preferred embodiments.

Preferred Embodiment 1

This embodiment proposes a design method for a foldable diversity antenna. When the communication signal quality of a wireless terminal is poor, the communication signal quality can be improved by unfolding the antenna with the help of this method, and at the same time, it can meet the user's requirements for the appearance and volume of wireless products. .

In order to achieve the above purpose, the technical solution adopted by the present invention is as follows: when the terminal does not perform radio frequency communication or the quality of the communication channel is good, the antenna is fixedly pressed against the housing without additional volume increase; when it is necessary to improve the quality of signal reception, The antenna is unfolded through the switch module, and after use, the antenna can be folded back through the switch module again.

The method provided in this embodiment has the following remarkable features: it can increase the clearance area of a single antenna, thereby improving the efficiency of a single antenna; at the same time, the main antenna and the secondary antenna are deployed at a certain angle, which increases the isolation between diversity antennas; Since the antenna is installed on the housing of the wireless terminal, the area of the clearance area on the PCB can be reduced, the area of the PCB can be reduced, and thus the volume of the wireless terminal can be reduced.

Preferred embodiment 2

Fig. 4 is a schematic diagram of a terminal structure according to preferred embodiment 2 of the present invention. As shown in Figure 4, the terminal includes:

Interface module M1: Provides an interface for communication between the terminal and the host device. The interface module can be a USB port or a PCI Express (PCIe) interface, not limited to the two interfaces mentioned in this article.

The first housing M2 of the wireless terminal: carries the antennas M201 and M202. The antennas can be folded into a storage position. In the storage position, the antennas M201 and M202 are coplanar with the first housing M2 of the wireless terminal.

Switch module M3: controls the unfolding and folding of the antenna, and each device involved in the present invention includes elastic connectors between the switch module M3 and the antennas M201 and M202. When the switch module M3 is closed, the elastic connector shrinks, and the antennas M201 and M202 are pulled and folded into the storage position; when the switch module M3 is opened, the elastic connector springs open, and the antennas M201 and M202 are unfolded from the storage position.

Antennas M201 and M202: composed of two main and auxiliary antennas, embedded in the first casing M2 of the wireless terminal. In one position, the antennas M201, M202 are stowed, so the antennas M201, M202 are firmly pressed against the first housing M2 and do not take up extra space. At the same time, the antenna can be opened to its receiving position, and the opening method can be opened along the plane or in any direction in space, as shown in Figure 5 for details. The terminal in this embodiment includes a flexible ribbon cable and other flexible resistive connections between the antennas M201, M202 and the receiving circuit inside the mobile terminal.

In this embodiment, by adjusting the relative positions of the antennas M201 and M202, the pattern and polarization direction of the main antenna and the auxiliary antenna can be changed, the isolation between the diversity antennas can be increased, and the transmission efficiency can be improved. In order to obtain the best channel quality, it is divided into two steps of rough search and fine search. Rough search, you can select a limited location point on the horizontal plane or in space, adjust the main and auxiliary antennas to the corresponding points, measure the corresponding channel quality, such as RSSI value, etc., and find out the largest and second largest RSSI among all measured values by comparison position point; then, perform a fine search between these two position points to find out the position point with the maximum RSSI, that is, the position point of the diversity antenna with the best channel quality.

Preferred Embodiment 3

As shown in FIG. 4 , the switch module M3 is a mechanical control module. When the device is not in use, the switch module M3 is closed and the antennas M201, M202 are folded into a stowed position.

When the user needs to use the terminal involved in the present invention for radio frequency communication, when the communication signal quality and data transmission rate can meet the user's needs, the switch module M3 is closed, and the antennas M201 and M202 are folded into storage positions. When the mobile terminal is at the edge of the cell and the network signal becomes poor, which affects the normal use of the user, it is only necessary to touch the switch module M3 to open the switch module M3, and the elastic connector bounces off. In this embodiment, the deployment method only involves the antenna M201 and M202 are unfolded sequentially from the storage position to both sides along the plane direction, and the unfolding process is shown in Figure 5. When the antennas M201 and M202 are unfolded, the signal quality still cannot meet the needs of the user. At this time, the position of the diversity antenna can be manually adjusted to increase the open space of the single antenna and increase the isolation between the diversity antennas to obtain a good signal. quality.

If the radio frequency communication of the terminal ends, the switch module M3 is touched again to close the switch module M3, the elastic connector shrinks, and the antennas M201 and M202 are drawn and folded to the storage position along the plane direction.

Preferred Embodiment 4

The switch module M3 shown in FIG. 4 is controlled by a hardware circuit. The composition of the hardware circuit is shown in the dotted line box in Figure 6, wherein the wireless terminal communicates with the host device 70 through the interface module 60, the switch module 64 is connected to the main processing module 62, and the main processing module 62 sends instructions to the switch module 64. The folding and unfolding of the antenna 66 is controlled, and the storage and comparison module 68 communicates with the switch module 64 for data.

As shown in Figure 7, the flow chart for controlling the antenna provided in this embodiment:

Step S702, when the interface module M1 is connected to the host device, power can be supplied to the main processing module through the interface module;

Step S704, the main processing module is powered on and works. When the radio frequency communication starts, the main processing module compares the detected signal quality with the preset threshold, whether it is greater than the threshold value, if yes, go to step S706, if not, go to step S710;

Step S706, if it is higher than the set threshold, that is, the signal quality is good, the antenna remains folded, and during the communication process, the detected signal quality is constantly compared with the preset threshold, if it is always higher than the set threshold, the antenna M201, M202 keep the folded state unchanged, go to step S708;

Step S708, judging whether the radio frequency communication is over, if yes, go to step S722; otherwise, go to step S704.

Step S710, if it is lower than the set threshold, that is, the channel quality is poor, which affects normal use, send an opening instruction to the switching module 64 through the control signal between the main processing module 62 and the switching module 64; the switching module 64 receives the opening instruction , the elastic connector springs open, and the antenna unfolds from the stowed position to both sides at a certain angle along the plane direction. The unfolding process is shown in Figure 8. Go to step S712.

Step S712, the main processing module compares the detected signal quality with the preset threshold, if it is higher than the set threshold, then go to step S716; if it is lower than the set threshold, go to step S714;

Step S714, adjust the deployment angle of the antenna, the adjustment process is shown in Figure 8: Step S802, the switch module M3 controls the antenna to search for the preset location points, and record the RSSI value corresponding to each location point, and set all The measured RSSI value is transmitted to the storage comparison module; step S804, the storage comparison module transmits the position information corresponding to the found maximum RSSI and the second largest RSSI to the switch module; step S806, the switch module controls the antenna to carry out between the two position points Search, transmit the RSSI value measured in the search process to the storage comparison module; Step S808, the storage comparison module finds the maximum RSSI value through comparison, and transmits the position information corresponding to the maximum RSSI to the switch module; Step S810, the switch module controls the antenna to adjust to The corresponding position, that is, the position corresponding to the best signal quality, can effectively improve the communication signal quality;

Step S716, normal communication;

Step S718, detecting whether the terminal is still in the radio frequency communication state, if yes, then turn to step S712; if the radio frequency communication is over, then turn to step S720;

Step S720, the switch module controls the folding of the antenna.

In step S722, the main processing module sends an instruction to close the switch module, the elastic connector shrinks, and the antenna is pulled and folded into a storage position.

In another embodiment, software is also provided, and the software is used to implement the technical solutions described in the above embodiments and preferred implementation manners.

In another embodiment, there is also provided a storage medium, in which the software is stored, the storage medium includes but not limited to: optical discs, floppy disks, hard disks, rewritable memories, and the like.

Obviously, those skilled in the art should understand that each module or each step of the above-mentioned present invention can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed in a network formed by multiple computing devices Alternatively, they may be implemented in program code executable by a computing device so that they may be stored in a storage device to be executed by a computing device, and in some cases in an order different from that shown here The steps shown or described are carried out, or they are separately fabricated into individual integrated circuit modules, or multiple modules or steps among them are fabricated into a single integrated circuit module for implementation. As such, the present invention is not limited to any specific combination of hardware and software.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. A terminal, comprising: a casing and at least one diversity antenna, characterized in that it also includes: a switch assembly, the switch assembly is used to fold and store the diversity antenna in the casing or to fold the diversity antenna An antenna unfolds out of the housing. 2. The terminal according to claim 1, characterized in that, The terminal also includes: a detection component, configured to generate a receiving signal and output it to the switch component when detecting that the terminal is not communicating or detecting that the signal quality of the terminal is not lower than a preset threshold, and when detecting When the signal quality strength to the terminal does not reach the preset threshold, generate an extension signal and output it to the switch component; The switch assembly is configured to receive the storage signal, fold and store the diversity antenna in the casing; or receive the extension signal, and expand the diversity antenna out of the casing. 3. The terminal according to claim 1 or 2, wherein an elastic traction member is provided between the switch assembly and the diversity antenna; when the switch assembly is closed, the contraction of the elastic traction member is triggered, and the The diversity antenna is folded and accommodated in the housing; the switch assembly is opened, triggering the expansion of the elastic traction member, and expanding the diversity antenna out of the housing. 4. The terminal according to claim 3, further comprising: The storage component is used to store the RSSI value of the received signal field strength indication collected by the diversity antenna controlled by the switch component at a preset position point; A comparison component, configured to compare the RSSI values, and generate a position adjustment signal according to the maximum RSSI value obtained by comparison; The switch assembly is further configured to control the diversity antenna to adjust to the preset position point corresponding to the maximum RSSI value according to the position adjustment signal. 5. The terminal according to claim 4, wherein the switch assembly controls the diversity antenna to adjust to a preset position point corresponding to the maximum RSSI value through the elastic traction member according to the position adjustment signal . 6. A method for adjusting the position of an antenna in a terminal, wherein the terminal includes: a housing, a switch assembly, and at least one diversity antenna, and the method includes: the switch assembly generates an open or close signal; According to the opening or closing signal generated by the switch assembly, the diversity antenna is controlled to unfold and protrude from the casing or to be folded and stored in the casing. 7. The method of claim 6, wherein the switch assembly generating an open or close signal comprises: Detecting the signal quality strength of the terminal and whether the terminal is communicating; When the detected signal quality strength does not reach a preset threshold or when the switch assembly is triggered to generate the opening signal; and when the detected signal quality strength is not lower than the preset threshold or the detected signal is detected When the terminal is not in communication, trigger the switch component to generate the closing signal. 8. The method of claim 6, wherein the switch assembly generating an open or close signal comprises: The switch assembly generates the open or close signal in response to an operation by an end user. 9. The method according to any one of claims 6 to 8, further comprising: Obtaining the RSSI value collected by the switch component to control the diversity antenna at a preset position; Comparing the RSSI values, and generating a position adjustment instruction according to the maximum RSSI value obtained by comparison; The switch component controls the diversity antenna to adjust to the preset position point corresponding to the maximum RSSI value according to the position adjustment instruction.

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