CN210469300U - Radio frequency control circuit and mobile terminal - Google Patents
Radio frequency control circuit and mobile terminal Download PDFInfo
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- CN210469300U CN210469300U CN201921137548.5U CN201921137548U CN210469300U CN 210469300 U CN210469300 U CN 210469300U CN 201921137548 U CN201921137548 U CN 201921137548U CN 210469300 U CN210469300 U CN 210469300U
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Abstract
The utility model provides a radio frequency control circuit and mobile terminal, include: a first wireless fidelity link, a second wireless fidelity link, a cellular network diversity link, a first wireless fidelity antenna, a second wireless fidelity antenna, a cellular network diversity antenna, a first switch, and a second switch; wherein the cellular network diversity antenna is located between the first wireless fidelity antenna and the second wireless fidelity antenna; the first wireless fidelity link is connected with the first wireless fidelity antenna; the first switch is respectively connected with the second wireless fidelity link, the second wireless fidelity antenna and the second switch; the first switch is used for controlling the second wireless fidelity link and the second switch to be in a communication state; the second switch is respectively connected with the cellular network diversity link, the first switch and the cellular network diversity antenna; the second switch is used for controlling the first switch and the cellular network diversity antenna to be in a connected state. The embodiment of the utility model provides a can improve mobile terminal's WIFI signal quality.
Description
Technical Field
The utility model relates to the field of communication technology, especially, relate to a radio frequency control circuit and mobile terminal.
Background
With the development of wireless communication technology, the application places of WIFI are more and more popular, and the WIFI antenna of the mobile phone is developed to a plurality of antennas from an original single antenna.
At present, two WIFI antennas are usually arranged in a mobile phone, and the two WIFI antennas are respectively located at the upper end and the lower end of the mobile phone. Referring to fig. 1, a schematic structural diagram of a WIFI antenna in a conventional mobile phone is shown, and as shown in fig. 1, a WIFI antenna ANT0 is disposed at an upper end of the mobile phone, and a WIFI antenna ANT1 is disposed at a lower end of the mobile phone.
As shown in fig. 1, in the process of watching video or operating a game through a WIFI network by using a mobile phone, a user generally holds the upper and lower ends of the mobile phone with both hands and puts the mobile phone horizontally. Therefore, the positions of the two WIFI antennas are just held by the two hands of the user, so that the two WIFI antennas are tightly held, the quality of WIFI signals is reduced, and even the situation of disconnection occurs.
SUMMERY OF THE UTILITY MODEL
By considering this, in order to solve current mobile terminal, two WIFI antennas are held to death, cause WIFI signal quality to descend, appear the problem that drops even, the utility model provides a radio frequency control circuit and a mobile terminal.
In order to solve the above problem, the utility model discloses a radio frequency control circuit, include: a first wireless fidelity link, a second wireless fidelity link, a cellular network diversity link, a first wireless fidelity antenna, a second wireless fidelity antenna, a cellular network diversity antenna, a first switch, and a second switch; wherein the cellular network diversity antenna is located between the first wireless fidelity antenna and the second wireless fidelity antenna;
the first wireless fidelity link is connected with the first wireless fidelity antenna;
the first switch is respectively connected with the second wireless fidelity link, the second wireless fidelity antenna and the second switch; the first switch is used for controlling the second wireless fidelity link and the second switch to be in a communication state;
the second switch is connected to the cellular network diversity link, the first switch, and the cellular network diversity antenna, respectively; the second switch is used for controlling the first switch and the cellular network diversity antenna to be in a connected state.
The utility model discloses a following advantage:
in the rf control circuit according to the embodiment of the present invention, since the first switch can control the second wireless fidelity link and the second switch to be in a communication state, and the second switch can control the first switch and the cellular network diversity antenna to be in a communication state, the second wireless fidelity link and the cellular network diversity antenna can be controlled by the first switch and the second switch to be connected, so that the second wireless fidelity link can receive the WIFI signal through the cellular network diversity antenna, thus, when the first wireless fidelity antenna and the second wireless fidelity antenna are held down, since the cellular network diversity antenna is located between the first wireless fidelity antenna and the second wireless fidelity antenna, the cellular network diversity antenna is not held down, and therefore, the cellular network diversity antenna can be used to receive the WIFI signal, the WIFI signal quality is improved, and the condition of disconnection is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a WIFI antenna in a conventional mobile phone;
fig. 2 is a schematic structural diagram of a radio frequency control circuit according to the present invention;
fig. 3 is a schematic structural diagram of another rf control circuit according to the present invention;
fig. 4 is a schematic structural diagram of another rf control circuit according to the present invention;
fig. 5 is a schematic diagram of an antenna position in a mobile terminal according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a radio frequency control circuit in an exemplary application of the present invention;
fig. 7 is a schematic diagram of a radio frequency control circuit in another application example of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The embodiment of the utility model provides a radio frequency control circuit specifically can include: a first wireless fidelity link, a second wireless fidelity link, a cellular network diversity link, a first wireless fidelity antenna, a second wireless fidelity antenna, a cellular network diversity antenna, a first switch, and a second switch; wherein the cellular network diversity antenna is located between the first wireless fidelity antenna and the second wireless fidelity antenna;
the first wireless fidelity link is connected with the first wireless fidelity antenna;
the first switch is respectively connected with the second wireless fidelity link, the second wireless fidelity antenna and the second switch; the first switch is used for controlling the second wireless fidelity link and the second switch to be in a communication state;
the second switch is connected to the cellular network diversity link, the first switch, and the cellular network diversity antenna, respectively; the second switch is used for controlling the first switch and the cellular network diversity antenna to be in a connected state.
In the rf control circuit according to the embodiment of the present invention, since the first switch can control the second wireless fidelity link and the second switch to be in a communication state, and the second switch can control the first switch and the cellular network diversity antenna to be in a communication state, the circuit between the second wireless fidelity link and the cellular network diversity antenna can be communicated through the first switch and the second switch, so that the second wireless fidelity link can receive the WIFI signal through the cellular network diversity antenna, and thus, since the cellular network diversity antenna is located between the first wireless fidelity antenna and the second wireless fidelity antenna, the cellular network diversity antenna is not held, and therefore, under the condition that the first wireless fidelity antenna and the second wireless fidelity antenna are held, the cellular network diversity antenna can be used to receive the WIFI signal, the WIFI signal quality is improved, and the condition of disconnection is avoided.
Referring to fig. 2, a schematic structural diagram of a radio frequency control circuit of the present invention is shown, which may specifically include: a first wireless fidelity link 20, a second wireless fidelity link 21, a cellular network diversity link 22, a first wireless fidelity antenna 23, a second wireless fidelity antenna 24, a cellular network diversity antenna 25, a first switch 26, and a second switch 27; wherein the cellular network diversity antenna 25 is located between the first wireless fidelity antenna 23 and the second wireless fidelity antenna 24; the first wireless fidelity link 20 is connected to a first wireless fidelity antenna 23; the first switch 26 is connected to the second wireless fidelity link 21, the second wireless fidelity antenna 24, and the second switch 27, respectively; the second switch 27 is connected to the cellular network diversity link 22, the first switch 26, and the cellular network diversity antenna 25, respectively. The first switch 26 may be configured to control the second wireless fidelity link 21 and the second switch 27 to be in a communication state; the second switch 27 may be used to control the first switch 26 to be in a connected state with the cellular network diversity antenna 25.
In practical applications, the first wireless fidelity antenna 23 and the second wireless fidelity antenna 24 may be configured to receive WIFI signals, and the first wireless fidelity link and the second wireless fidelity link may include wireless fidelity chips, such as WCN3990 chips; the first wireless fidelity link or the second wireless fidelity link may further include a global navigation satellite system positioning chip, such as a GNSS chip. The cellular network diversity antenna 25 is a diversity antenna of a main antenna of a cellular network and may be used to receive cellular network signals, and a cellular network chip, such as an SDR660 chip, may be included in a cellular network diversity link. Cellular networks may include Global System for Mobile Communications (GSM) networks, Code Division Multiple Access (CDMA) networks, third Generation Mobile communication technology (3rd-Generation, 3G) networks, Long Term Evolution (LTE) networks, and the like.
The embodiment of the utility model provides a through increase first switch 26 and second switch 27 in mobile terminal, control second wireless fidelity link 21 can communicate cellular network diversity antenna 25, and then can utilize cellular network diversity antenna 25 to receive the WIFI signal, from this, under the condition that first wireless fidelity antenna 23 and second wireless fidelity antenna 24 are held dead, can utilize cellular network diversity antenna 25 to receive the WIFI signal, in order to improve WIFI signal quality, avoid appearing the condition of falling the line. It is to be understood that the present invention is not limited in its application to the particular type of first switch, which may be, for example, a single pole double throw switch, and the second switch, which may be a diversity module switch in a mobile terminal.
It is to be understood that, in the embodiment of the present invention, the first wireless fidelity antenna and the second wireless fidelity antenna are only used to distinguish two different WIFI antennas in the mobile terminal, and are not used to define a specific WIFI antenna, that is, the first wireless fidelity antenna may be ANT0 in fig. 1, and the second wireless fidelity antenna may be ANT1 in fig. 1; alternatively, the first wireless fidelity antenna may be ANT1 and the second wireless fidelity antenna may be ANT 0. Therefore, the embodiment of the utility model provides a through first switch and second switch, can control the wireless fidelity link of second and communicate cellular network diversity antenna, perhaps, also can control first wireless fidelity link and communicate cellular network diversity antenna. For convenience of description, the embodiments of the present invention are described by taking the second wifi link connected cellular network diversity antenna as an example.
In the embodiment of the present invention, the radio frequency control circuit may further include: a control module; the control module is respectively connected with the first switch and the second switch; the control module is used for outputting a first switching signal to the first switch and outputting a second switching signal to the second switch.
In order to make the in-process that the wireless fidelity link of second utilized cellular network diversity antenna to receive the WIFI signal, did not influence mobile terminal's cellular network function, the embodiment of the utility model provides a can carry out the opportunity that the link switched through first switch of control module control and second switch. Specifically, the control module may output a first switching signal to the first switch and a second switching signal to the second switch under a first condition. The first switching signal is used for indicating the first switch to control the second wireless fidelity link and the second switch to be in a communication state; and the second switching signal is used for indicating the second switch to control the first switch and the cellular network diversity antenna to be in a connected state.
Optionally, the first condition may be that the WIFI signal strength received by the first wireless fidelity antenna and the WIFI signal strength received by the second wireless fidelity antenna are both less than a first threshold, and the cellular network is in an idle state; or, the first condition may also be that the WIFI signal strength received by the first wireless fidelity antenna and the WIFI signal strength received by the second wireless fidelity antenna are both smaller than a first threshold, and the cellular network signal strength received by the cellular network main antenna is greater than a second threshold.
The Signal strength may be represented by a Received Signal Strength Indication (RSSI) value. If the RSSI value of the WIFI signal received by the first wireless fidelity antenna and the RSSI value of the WIFI signal received by the second wireless fidelity antenna are both smaller than a first threshold value (such as-85 dBm), the first wireless fidelity antenna and the second wireless fidelity antenna are possibly held by two hands of a user, the state of a cellular network of the mobile terminal can be further judged at the moment, and if the cellular network is in an idle state or the signal intensity of the cellular network of a main antenna of the cellular network is larger than a second threshold value (such as-75 dBm), the cellular network signal is stronger, even if a diversity antenna of the cellular network is occupied, the cellular network can not be greatly influenced when the user normally uses the cellular network. Therefore, the control module can output a first switching signal to the first switch and output a second switching signal to the second switch under a first condition so as to control the second wireless fidelity link and the second switch to be in a communication state through the first switch; and controlling the first switch and the cellular network diversity antenna to be in a connected state through the second switch, so that the second wireless fidelity link and the cellular network diversity antenna are in a connected state, and therefore the cellular network diversity antenna can be utilized to receive WIFI signals, and the quality of the WIFI signals is improved.
Optionally, the control module may be further configured to output a third switching signal to the first switch, and output a fourth switching signal to the second switch; the third switching signal is used for indicating the first switch to control the second wireless fidelity link and the second switch to be in a disconnection state and to control the second wireless fidelity link and the second wireless fidelity antenna to be in a connection state; the fourth switching signal is used for indicating the second switch to control the first switch and the cellular network diversity antenna to be in a disconnection state and to control the cellular network diversity link and the cellular network diversity antenna to be in a connection state.
Specifically, the utility model discloses control module can be under the second condition, to first switch output third switching signal to and to second switch output fourth switching signal, in order to release the cellular network diversity antenna that the wireless fidelity link of second occupy.
The second condition may be that the WIFI signal strength received by the first wireless fidelity antenna or the WIFI signal strength received by the second wireless fidelity antenna is greater than a third threshold. At this time, the two hands of the user may already loosen the WIFI antenna of the mobile terminal, so that the second wireless fidelity link may be controlled to restore the communication state with the second wireless fidelity antenna through the first switch and the second switch, so that the second wireless fidelity antenna may continue to receive the WIFI signal; and controlling the cellular network diversity link to restore a connected state with the cellular network diversity antenna so that the cellular network diversity antenna can continue to receive cellular network signals.
In practical applications, the embodiments of the present invention are applicable to any radio frequency architecture, for example, a radio frequency architecture that can be used for a combination of a Multiple-Input Multiple-Output (MIMO) antenna of 2.4G and a MIMO antenna of 5G, or a radio frequency architecture that combines a MIMO antenna of 2.4G and a Single-Input Single-Output (SISO) antenna of 5G, and the like.
In an embodiment of the present invention, the second wireless fidelity link may include: a first frequency band link and a second frequency band link; and the first frequency band link and the second frequency band link are connected with the second wireless fidelity antenna after being connected through the combiner.
In the embodiment of the present invention, the first frequency band link may refer to a WIFI link with a frequency band of 2.4G, and the second frequency band link may refer to a WIFI link with a frequency band of 5G; or, the first frequency band link may refer to a WIFI link with a frequency band of 5G, and the second frequency band link may refer to a WIFI link with a frequency band of 2.4G. The first frequency band link and the second frequency band link are connected through the combiner and then connected with the second wireless fidelity antenna, and the second wireless fidelity antenna can receive 2.4G WIFI signals or 5G WIFI signals.
Specifically, the first switch may be a single-pole double-throw switch, such as an SP2T switch, and may be configured to control the first frequency band link and the second switch to be in a connected state; the single-pole double-throw switch is respectively connected with the first frequency band link, the second wireless fidelity antenna and the second switch.
Referring to fig. 3, a schematic structural diagram of another radio frequency control circuit of the present invention is shown, which may specifically include: first wireless fidelity link 30, second wireless fidelity link 31, cellular network diversity link 32, first wireless fidelity antenna 33, second wireless fidelity antenna 34, cellular network diversity antenna 35, SP2T switch 36, and second switch 37; wherein, the second wireless fidelity link 31 includes a first frequency link 311 and a second frequency link 312; first wireless fidelity link 30 is connected to first wireless fidelity antenna 33; the first frequency band link 311 is connected to the common contact of the SP2T switch 36, and the first contact of the SP2T switch 36 is connected to the second frequency band link through the combiner 39 and then connected to the second wireless fidelity antenna 34. Thus, by controlling the opening or closing of the SP2T switch blade, the first band link 311 can be switched to communicate with the second wireless fidelity antenna 34, or the first band link 311 can be switched to communicate with the second switch 37.
The second switch 37 is connected to the cellular network diversity link 32, the second contact of the SP2T switch 36, and the cellular network diversity antenna 35, respectively. In the state where the first frequency band link 311 is disconnected from the second wireless fidelity antenna 34 and is connected to the second switch 37, the second contact of the SP2T switch 36 may be controlled by the second switch 37 to be connected to the cellular network diversity antenna 35 and the cellular network diversity link 32 may be controlled to be disconnected from the cellular network diversity antenna 35. Therefore, the first frequency band link 311 and the cellular network diversity antenna 35 are in a connected state, and the cellular network diversity antenna 35 can be used for receiving the WIFI signal of the first frequency band.
Thus, under the condition that the first wireless fidelity antenna 33 and the second wireless fidelity antenna 34 are held, since the cellular network diversity antenna 35 is located between the first wireless fidelity antenna 33 and the second wireless fidelity antenna 34, the cellular network diversity antenna 35 is not held, and therefore, the cellular network diversity antenna 35 can be used for receiving the WIFI signal of the first frequency band, so that the quality of the WIFI signal is improved, and the situation of disconnection is avoided. In addition, since the second frequency band link 312 is in a connected state with the second wireless fidelity antenna 34, the WIFI signal of the second frequency band can still be received by the second wireless fidelity antenna 34, in case that it is detected that the WIFI signal of the second frequency band is stronger, the SP2T switch 36 can be controlled to switch the first frequency band link 311 back from the cellular network diversity antenna 35 to the second wireless fidelity antenna 34, and the second switch 37 is controlled to connect the cellular network diversity link 32 with the cellular network diversity antenna 35, so as to recover the function of the cellular network diversity antenna 35 for receiving the cellular network signal.
Alternatively, the first switch may be a three pole, three throw switch, such as a 3P3T switch; wherein the 3P3T switch is connected to the first frequency link, the second frequency link, and the second switch respectively; the first frequency band link and the second frequency band link are respectively connected with the 3P3T switch and then connected with the second wireless fidelity antenna through a combiner; the 3P3T switch is used for controlling the first frequency band link and the second switch to be in a communication state; or, the second frequency band link and the second switch are controlled to be in a communication state.
Referring to fig. 4, a schematic structural diagram of another radio frequency control circuit of the present invention is shown, which may specifically include: a first wireless fidelity link 40, a second wireless fidelity link 41, a cellular network diversity link 42, a first wireless fidelity antenna 43, a second wireless fidelity antenna 44, a cellular network diversity antenna 45, a 3P3T switch 46, and a second switch 47; wherein the second wireless fidelity link 41 comprises a first frequency link 411 and a second frequency link 412; the first wireless fidelity link 40 is connected to a first wireless fidelity antenna 43; the first frequency band link 411 is connected to the first contact of the 3P3T switch 46, the second frequency band link 412 is connected to the second contact of the 3P3T switch 46, the third contact and the fourth contact of the 3P3T switch 46 are connected to the second wireless fidelity antenna 44 through the combiner 49, and the fifth contact of the 3P3T switch 46 is connected to the second switch 47.
By default, the first contact and the third contact of the 3P3T switch are in a connected state, the second contact and the fourth contact are in a connected state, and the other contacts are in an disconnected state, so that the first frequency band link 411 and the second frequency band link 412 are connected to the second wireless fidelity antenna 44 through the combiner 49 after passing through the 3P3T switch, and the second wireless fidelity antenna 44 can receive the WIFI signal in the first frequency band or the second frequency band.
The embodiment of the utility model provides an open or be closed through control 3P3T switch blade, can switch first frequency channel link 411 into and communicate with wireless fidelity antenna 44 of second, perhaps switch first frequency channel link 411 into and communicate with second switch 47. Furthermore, by controlling the opening or closing of the switch blade of 3P3T, it is also possible to switch the second band link 412 to communicate with the second wireless fidelity antenna 44, or to switch the second band link 412 to communicate with the second switch 47.
In this way, in the case where the first wireless fidelity antenna 43 and the second wireless fidelity antenna 44 are held down, the first frequency band link 411 and the second switch 47 can be connected, the first frequency band link 411 and the second wireless fidelity antenna 44 can be disconnected, and the second frequency band link 412 and the second wireless fidelity antenna 44 can be connected by controlling the first contact and the fifth contact of the 3P3T switch 46 to be connected, the first contact and the third contact to be disconnected, and the second contact and the fourth contact to be connected.
Since the second switch 47 is connected to the cellular network diversity link 42, the fifth contact of the 3P3T switch 46, and the cellular network diversity antenna 45, respectively, the fifth contact of the 3P3T switch 46 can be connected to the cellular network diversity antenna 45 by controlling the second switch 47. From this, first frequency channel link 411 and cellular network diversity antenna 45 can be communicated, and then the WIFI signal of first frequency channel can be received by cellular network diversity antenna 45, so as to improve WIFI signal quality and avoid the condition of disconnection.
In addition, since the second frequency band link 412 is in a connected state with the second wireless fidelity antenna 44, it is still possible to receive the WIFI signal of the second frequency band through the second wireless fidelity antenna 44, in case that it is detected that the WIFI signal of the second frequency band is stronger, it is possible to switch the first frequency band link 411 from the cellular network diversity antenna 45 back to the second wireless fidelity antenna 44 by controlling the switch 3P3T 46, and connect the cellular network diversity link 42 and the cellular network diversity antenna 45 by controlling the second switch 47, so as to recover the function of the cellular network diversity antenna 45 for receiving the cellular network signal.
Alternatively, in the case where the first wireless fidelity antenna 43 and the second wireless fidelity antenna 44 are held down, the first frequency band link 411 may be communicated with the second wireless fidelity antenna 44, the second frequency band link 412 may be disconnected from the second wireless fidelity antenna 44, and the second frequency band link 412 may be communicated with the second switch 47 by controlling the first contact and the third contact of the 3P3T switch 46 to be communicated, the second contact and the fourth contact to be disconnected, and the second contact and the fifth contact to be communicated.
Therefore, the second frequency band link 412 and the cellular network diversity antenna 45 can be communicated, and then the WIFI signal of the second frequency band can be received by the cellular network diversity antenna 45. In addition, since the first frequency band link 411 is in a connected state with the second wireless fidelity antenna 44, the WIFI signal of the first frequency band can still be received by the second wireless fidelity antenna 44, in case that it is detected that the WIFI signal of the first frequency band is stronger, the second frequency band link 412 can be switched back from the cellular network diversity antenna 45 to the second wireless fidelity antenna 44 by controlling the switch 46 of 3P3T, and the cellular network diversity link 42 and the cellular network diversity antenna 45 are connected by controlling the second switch 47, so as to recover the function of the cellular network diversity antenna 45 for receiving the cellular network signal.
In practical applications, the position of the cellular network diversity antenna in the embodiment of the present invention exceeds the position of the first wireless fidelity antenna by a preset distance; and/or the position of the cellular network diversity antenna exceeds the position of the second wireless fidelity antenna by a preset distance.
In order to avoid the situation that the position of the cellular network diversity antenna is close to the position of the WIFI antenna under the condition that the two hands of the user just hold the positions of the two WIFI antennas, and the cellular network diversity antenna is also held, the position of the cellular network diversity antenna can be set to be an area far away from any one of the two WIFI antennas.
Referring to fig. 5, a schematic diagram of an antenna position in a mobile terminal according to an embodiment of the present invention is shown. As shown in fig. 5, ANT0 is a first wireless fidelity antenna, ANT1 is a second wireless fidelity antenna, and ANT2 or DRX _ ANT is a cellular network diversity antenna.
In the embodiment of the present invention, the radio frequency control circuit may further include: a third wireless fidelity antenna; the first frequency band link is connected with the second wireless fidelity antenna; the second frequency band link is connected with the third wireless fidelity antenna.
In order to reduce the influence to cellular network signal quality, the embodiment of the utility model provides a can also become two independent links with first frequency channel link in the wireless fidelity link of second and second frequency channel link split to increase the wireless fidelity antenna of third, make first frequency channel link and the wireless fidelity antenna of second be connected, and the second frequency channel link is connected with the wireless fidelity antenna of third. Therefore, the WIFI signal of the first frequency band can be received through the second wireless fidelity antenna, and the WIFI signal of the second frequency band can be received through the third wireless fidelity antenna. Like this, under the condition that first wireless fidelity antenna and second wireless fidelity antenna are all held dead, can also receive the WIFI signal through third wireless fidelity antenna to improve the quality of WIFI signal.
Referring to fig. 6, a schematic diagram of an rf control circuit in an application example of the present invention is shown, and as in the application example of the rf control circuit shown in fig. 6, the rf control circuit includes a first wireless fidelity antenna ANT0, a second wireless fidelity antenna ANT1, a cellular network diversity antenna ANT2 or DRX _ ANT, a first switch (SP2T switch), and a second switch (diversity module switch). ANT0 may be used to receive 2.4G or 5G WIFI signals, Bluetooth (BT) signals, Global Positioning System (GPS) signals, by default; ANT1 may be used to receive 2.4G or 5G WIFI signals; ANT2 or DRX _ ANT may be used to receive cellular network signals.
In the application example, the mobile terminal may be connected to a 2.4G WIFI access point ap (access point), and the mobile terminal detects whether RSSI values of 2.4G WIFI signals received by ANT0 and ANT1 are simultaneously lower than a preset threshold, and if so, further determines a state of the cellular network; otherwise, keeping the WIFI 2.4G CH1 at the default WIFI antenna ANT1 unchanged.
If the RSSI values of 2.4G WIFI signals received by ANT0 and ANT1 are both smaller than the first threshold, and the main antenna network of the cellular network is in an idle state, or the strength of the cellular network signal received by the main antenna of the cellular network is greater than the second threshold, one of the 2.4G CH1 of WIFI is switched to an ANT2 or DRX _ ANT antenna through an SP2T switch and a switch inside the diversity module. If the cellular network signal strength received by the primary antenna of the cellular network is less than the second threshold, the 2.4G CH1 does not perform antenna switching and still maintains the default antenna in order to ensure the performance of the primary antenna of the cellular network.
After the 2.4G CH1 is switched to the ANT2 or DRX _ ANT antenna, the ANT0 and the ANT1 may be monitored at regular time to receive the 5.8G WIFI signal, and when the RSSI value of the ANT0 or the ANT1 receiving the 5.8G WIFI signal is higher than the third threshold, the SP2T switch and the switch inside the diversity module may be controlled by the control module, so that the WIFI 2.4G CH1 is switched back to the ANT1 antenna. According to the application example, the antenna switching of the WIFI 2.4G CH1 can be realized on the basis that the hardware cost is not increased, the performance of one path of antenna in the WIFI 2.4G is ensured, and the user experience is improved.
Referring to fig. 7, a schematic diagram of an rf control circuit in another application example of the present invention is shown, and as in the application example of the rf control circuit shown in fig. 7, the rf control circuit includes a first wireless fidelity antenna ANT0, a second wireless fidelity antenna ANT1, and a third wireless fidelity antenna ANT 2.
The ANT0 may be configured to receive WIFI signals, BT signals, and GPS signals of 2.4G or 5G; ANT1 may be used to receive 2.4G WIFI signals; ANT2 may be used to receive 5G WIFI signals. In this application example, by adding a third wireless fidelity antenna, the WIFI signals of 2.4G and 5G that were originally received together by ANT1 are modified to receive 2.4G WIFI signals alone by ANT1 and 5G WIFI signals alone by ANT 2. In practical applications, the position of the newly added third wireless fidelity antenna ANT2 exceeds the position of the first wireless fidelity antenna by a preset distance; and/or the newly added third wireless fidelity antenna ANT2 and the second wireless fidelity antenna ANT2 are located beyond a preset distance to ensure that the first wireless fidelity antenna ANT0, the second wireless fidelity antenna ANT1 and the third wireless fidelity antenna ANT2 are not held at the same time.
In the application example, the cellular network diversity antenna is not required to be occupied, and the performance of the cellular network is not influenced on the premise of improving the quality of the WIFI signal.
The embodiment of the utility model provides a still provide a mobile terminal, specifically include: the radio frequency control circuit. The mobile terminal may include, but is not limited to, any one of a mobile phone, a tablet computer, and a wearable device, and the embodiment of the present invention may not be limited to the specific type of the mobile terminal.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The radio frequency control circuit and the mobile terminal provided by the present invention are introduced in detail, and the principle and the implementation of the present invention are explained by applying specific examples, and the descriptions of the above embodiments are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (9)
1. A radio frequency control circuit, comprising: a first wireless fidelity link, a second wireless fidelity link, a cellular network diversity link, a first wireless fidelity antenna, a second wireless fidelity antenna, a cellular network diversity antenna, a first switch, and a second switch; wherein the cellular network diversity antenna is located between the first wireless fidelity antenna and the second wireless fidelity antenna;
the first wireless fidelity link is connected with the first wireless fidelity antenna;
the first switch is respectively connected with the second wireless fidelity link, the second wireless fidelity antenna and the second switch; the first switch is used for controlling the second wireless fidelity link and the second switch to be in a communication state;
the second switch is connected to the cellular network diversity link, the first switch, and the cellular network diversity antenna, respectively; the second switch is used for controlling the first switch and the cellular network diversity antenna to be in a connected state.
2. The radio frequency control circuit of claim 1, wherein the second wireless fidelity link comprises: a first frequency band link and a second frequency band link; wherein the content of the first and second substances,
and the first frequency band link and the second frequency band link are connected with the second wireless fidelity antenna after being connected through a combiner.
3. The rf control circuit of claim 2, wherein the first switch is a single-pole double-throw switch; wherein the content of the first and second substances,
the single-pole double-throw switch is respectively connected with the first frequency band link, the second wireless fidelity antenna and the second switch; the single-pole double-throw switch is used for controlling the first frequency band link and the second switch to be in a communication state;
the second frequency band link is connected with the second wireless fidelity antenna.
4. The rf control circuit of claim 2, wherein the first switch is a three-pole, three-throw switch; wherein the content of the first and second substances,
the three-pole three-throw switch is respectively connected with the first frequency band link, the second frequency band link and the second switch;
the first frequency band link and the second frequency band link are respectively connected with the three-pole three-throw switch and then connected with the second wireless fidelity antenna through a combiner; the three-pole three-throw switch is used for controlling the first frequency band link and the second switch to be in a communication state; or, the second frequency band link and the second switch are controlled to be in a communication state.
5. The radio frequency control circuit according to claim 2, further comprising: a third wireless fidelity antenna; wherein the content of the first and second substances,
the first frequency band link is connected with the second wireless fidelity antenna;
the second frequency band link is connected with the third wireless fidelity antenna.
6. The radio frequency control circuit according to claim 1, further comprising: a control module; wherein the content of the first and second substances,
the control module is respectively connected with the first switch and the second switch; the control module is used for outputting a first switching signal to the first switch and outputting a second switching signal to the second switch;
the first switching signal is used for indicating the first switch to control the second wireless fidelity link and the second switch to be in a connected state; and the second switching signal is used for indicating the second switch to control the first switch and the cellular network diversity antenna to be in a connected state.
7. The RF control circuit of claim 6, wherein the control module is further configured to output a third switching signal to the first switch and a fourth switching signal to the second switch;
the third switching signal is used for indicating the first switch to control the second wireless fidelity link and the second switch to be in a disconnection state and to control the second wireless fidelity link and the second wireless fidelity antenna to be in a connection state; the fourth switching signal is used for indicating the second switch to control the first switch and the cellular network diversity antenna to be in a disconnection state and to control the cellular network diversity link and the cellular network diversity antenna to be in a connection state.
8. The radio frequency control circuit of claim 1, wherein the location of the cellular network diversity antenna exceeds the location of the first wireless fidelity antenna by a preset distance; and/or
The position of the cellular network diversity antenna and the position of the second wireless fidelity antenna exceed the preset distance.
9. A mobile terminal, comprising: the radio frequency control circuit of any of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921137548.5U CN210469300U (en) | 2019-07-17 | 2019-07-17 | Radio frequency control circuit and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921137548.5U CN210469300U (en) | 2019-07-17 | 2019-07-17 | Radio frequency control circuit and mobile terminal |
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| Publication Number | Publication Date |
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| CN210469300U true CN210469300U (en) | 2020-05-05 |
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| CN201921137548.5U Active CN210469300U (en) | 2019-07-17 | 2019-07-17 | Radio frequency control circuit and mobile terminal |
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