CN112262532B - Method for improving MIMO throughput direction by increasing radio frequency path and terminal equipment - Google Patents

Method for improving MIMO throughput direction by increasing radio frequency path and terminal equipment Download PDF

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Publication number
CN112262532B
CN112262532B CN201880094530.3A CN201880094530A CN112262532B CN 112262532 B CN112262532 B CN 112262532B CN 201880094530 A CN201880094530 A CN 201880094530A CN 112262532 B CN112262532 B CN 112262532B
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antenna
radio frequency
chip
terminal device
switch
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CN112262532A (en
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黄腾飞
俞泉
朱松
范保民
王爱猛
姜波
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/405—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with multiple discrete channels

Abstract

The application provides a method for improving MIMO throughput direction by increasing radio frequency path and a terminal device, wherein the terminal device comprises: the antenna comprises a first FEM, a second FEM, a first antenna, a second antenna, a third antenna, an antenna change-over switch and a chip; the first antenna is connected with the common end of the first FEM, the receiving end of the first FEM is connected with the first receiving end of the chip, and the transmitting end of the first FEM is connected with the first transmitting end of the chip; the second antenna is connected with the common end of the second FEM, the first end of the second FEM is connected with the first contact of the antenna change-over switch, the third antenna is connected with the second contact of the antenna change-over switch, the third contact of the antenna change-over switch is connected with the second end of the chip, and the control end of the antenna change-over switch is connected with the control end of the chip; the chip controls the antenna changeover switch to conduct the radio frequency channel corresponding to the second antenna or the third antenna for signal transmission, so that the transmission throughput rate between two terminal devices adopting MIMO transmission signals is improved.

Description

Method for improving MIMO throughput direction by increasing radio frequency path and terminal equipment
Technical Field
The embodiment of the application relates to a communication technology, in particular to a method for improving the MIMO throughput direction by increasing a radio frequency channel and terminal equipment.
Background
The multiple-input multiple-output (MIMO) technology is that a transmitting device and a receiving device respectively use multiple antennas to achieve multiple transmission and multiple reception, so as to increase the number of parallel transmission paths between the transmitting device and the receiving device, and thus, the transmission throughput between the transmitting device and the receiving device can be increased by times without increasing spectrum resources and antenna transmission power.
At present, in order to improve the transmission throughput between the WiFi device and the terminal device, the WiFi device and the terminal device may use MIMO technology to perform signal transmission. Namely, the WiFi device and the terminal device respectively use multiple antennas to achieve multiple sending and multiple receiving. When the terminal device moves to some positions, transmission paths between multiple antennas of the WiFi device and the same antenna of the terminal device may be approximately the same, that is, MIMO throughput directions between the multiple antennas of the WiFi device and the same antenna of the terminal device are approximately the same, which results in that signals cannot be transmitted between the WiFi device and the terminal device by using MIMO technology, and further causes deterioration of transmission throughput between the WiFi device and the terminal device, and lower user experience.
Disclosure of Invention
The embodiment of the application provides a method for improving the MIMO throughput direction by adding a radio frequency channel and a terminal device, so that a WiFi device and the terminal device can adopt the MIMO technology to transmit signals at any time, the transmission throughput rate between the WiFi device and the terminal device is improved, and further the user experience is improved.
In a first aspect, an embodiment of the present application provides a terminal device for increasing a radio frequency path and improving a MIMO throughput direction, where the terminal device includes: the antenna comprises a first radio frequency front-end module, a second radio frequency front-end module, a first antenna, a second antenna, a third antenna, an antenna change-over switch and a chip; the first antenna is connected with a common end of the first radio frequency front end module, a receiving end of the first radio frequency front end module is connected with a first receiving end of the chip, and a transmitting end of the first radio frequency front end module is connected with a first transmitting end of the chip; the second antenna is connected with the common end of the second radio frequency front end module, the first end of the second radio frequency front end module is connected with the first contact of the antenna change-over switch, the third antenna is connected with the second contact of the antenna change-over switch, the third contact of the antenna change-over switch is connected with the second end of the chip, and the control end of the antenna change-over switch is connected with the control end of the chip; the chip is used for controlling the antenna changeover switch to conduct the radio frequency channel corresponding to the second antenna or conduct the radio frequency channel corresponding to the third antenna for signal transmission.
When the terminal device is the first terminal device, a path forming a radio frequency path can be newly added to the first terminal device by adding the third antenna to the first terminal device. In this way, when a transmission path from a first antenna of a first terminal device to an antenna of a second terminal device and a transmission path from an antenna (a second antenna or a third antenna) corresponding to a currently conducted radio frequency path of an antenna switch of the first terminal device to the same antenna of the second terminal device are approximately the same (i.e., MIMO throughput directions are approximately the same), the chip may switch from the radio frequency path corresponding to the currently conducted antenna to a radio frequency path corresponding to another antenna by controlling the antenna switch, so as to perform signal transmission by using the other radio frequency path, thereby improving a positional relationship between two antennas used when the first terminal device and the second terminal device perform signal transmission, and further achieving an improvement of a transmission path from the two antennas of the first terminal device to the same antenna of the second terminal device (i.e., MIMO throughput directions), so that the first terminal device (e., a WiFi device) and the second terminal device may transmit a signal by using MIMO technology at any time The number of the first terminal device (for example, a WiFi device) and the second terminal device is increased, and therefore user experience is improved.
The first terminal device may add a radio frequency receiving path through the third antenna in the following connection manners, specifically:
the first mode is as follows: the first end of the second radio frequency front end module is a receiving end of the second radio frequency front end module, and the second end of the chip is a second receiving end of the chip. In this implementation, the transmitting end of the second rf front-end module may be connected to the second transmitting end of the chip.
The second mode is as follows: the first end of the second radio frequency front end module is a receiving end of the second radio frequency front end module, and the second end of the chip is a transmitting and receiving end of the chip. In this implementation, the transmitting end of the second rf front-end module may be connected to the second transmitting end of the chip.
The third mode is as follows: when the terminal equipment adopts a half-duplex mode to carry out signal transmission, the first end of the second radio frequency front end module is the transmitting end of the second radio frequency front end module, and the second end of the chip is the receiving and transmitting end of the chip. In this implementation, the receiving end of the second rf front-end module may be connected to the second receiving end of the chip.
By any mode, a radio frequency receiving channel can be added for the first terminal device, so that the throughput rate of the received signals between the first terminal device and the second terminal device is improved.
The first terminal device may adopt the following connection modes, and a radio frequency transmission path is newly added through the third antenna, specifically:
the first mode is as follows: the first end of the second radio frequency front end module is a transmitting end of the second radio frequency front end module, and the second end of the chip is a second transmitting end of the chip. In this implementation, the receiving end of the second rf front-end module may be connected to the second receiving end of the chip.
The second mode is as follows: the first end of the second radio frequency front end module is the transmitting end of the second radio frequency front end module, and the second end of the chip is the transmitting and receiving end of the chip. In this implementation, the receiving end of the second rf front-end module may be connected to the second receiving end of the chip.
The third mode is as follows: when the terminal equipment adopts a half-duplex mode to transmit signals, the first end of the second radio frequency front end module is the receiving end of the second radio frequency front end module, and the second end of the chip is the receiving and transmitting end of the chip. In this implementation, the transmitting end of the second rf front-end module is connected to the second transmitting end of the chip.
By any mode, a radio frequency transmission channel can be newly added for the first terminal device, so that the throughput rate of signals transmitted between the first terminal device and the second terminal device is improved.
When the first terminal device implements adding a new radio frequency path in any one of the above manners, the chip of the first terminal device may automatically control the antenna changeover switch to switch between the radio frequency path corresponding to the second antenna and the radio frequency path corresponding to the third antenna in the following manners, specifically:
for example, the chip may obtain the signal quality of the second antenna and the signal quality of the third antenna, and control the antenna switch to conduct the radio frequency path corresponding to the antenna with the optimal signal quality for signal transmission according to the signal quality of the second antenna and the signal quality of the third antenna.
Or, the chip may acquire the throughput of the second antenna and the throughput of the third antenna, and control the antenna switch to conduct the radio frequency path corresponding to the antenna with the optimal throughput to perform signal transmission according to the throughput of the second antenna and the throughput of the third antenna.
Or, the chip may control the antenna changeover switch to turn on the radio frequency path corresponding to the other antenna for signal transmission when the throughput rate of the antenna corresponding to the currently-turned-on radio frequency path is lower than a preset throughput rate; the antenna corresponding to the currently conducted radio frequency path is a second antenna, and the other antenna is a third antenna, or the antenna corresponding to the currently conducted radio frequency path is a third antenna, and the other antenna is a second antenna.
Or, the chip may control the antenna changeover switch to turn on a radio frequency path corresponding to another antenna for signal transmission when the signal quality of the antenna corresponding to the currently turned on radio frequency path is lower than a preset threshold; the antenna corresponding to the currently conducted radio frequency path is a second antenna, and the other antenna is a third antenna, or the antenna corresponding to the currently conducted radio frequency path is a third antenna, and the other antenna is a second antenna.
By the above manner, when the transmission path of the chip between the first antenna of the first terminal device and the antenna of the second terminal device is approximately the same as the transmission path between the antenna (the second antenna or the third antenna) corresponding to the currently conducted radio frequency path and the same antenna of the second terminal device (i.e. the MIMO throughput directions are close), the antenna changeover switch is automatically controlled to switch to the radio frequency path corresponding to the other antenna, so that the positional relationship between the two antennas of the first terminal device is improved, and further the transmission path from the two antennas of the first terminal device to the same antenna of the second terminal device (i.e. the MIMO throughput directions are improved) is improved, so that the first terminal device (e.g. WiFi device) and the second terminal device can transmit signals by adopting the MIMO technology at any time, and the transmission throughput rate between the first terminal device (e.g. WiFi device) and the second terminal device is improved, thereby improving the user experience.
Optionally, in some embodiments, the terminal device further includes: a third RF front end module; and the third antenna is connected with the antenna change-over switch through the third radio frequency front-end module. In this way, the signal transmitted by the third antenna can be amplified and processed to improve the transmission efficiency of the antenna.
In a second aspect, an embodiment of the present application provides a method for improving MIMO throughput direction by adding a radio frequency path, including:
sending a control instruction to an antenna change-over switch, wherein the control instruction is used for controlling the antenna change-over switch to conduct a radio frequency channel corresponding to the second antenna or conduct a radio frequency channel corresponding to a third antenna; and then, transmitting a first signal through a radio frequency channel corresponding to the first antenna, and transmitting a second signal through a radio frequency channel corresponding to the conducted second antenna or a radio frequency channel corresponding to the conducted third antenna.
For example, when the radio frequency path corresponding to the second antenna and the radio frequency path corresponding to the third antenna are both radio frequency receiving paths, the chip receives a first signal through the radio frequency path corresponding to the first antenna, and receives a second signal through the radio frequency path corresponding to the second antenna or the radio frequency path corresponding to the third antenna. When the radio frequency path corresponding to the second antenna and the radio frequency path corresponding to the third antenna are both radio frequency transmission paths, the chip transmits a first signal through the radio frequency path corresponding to the first antenna, and transmits a second signal through the conducted radio frequency path corresponding to the second antenna or the conducted radio frequency path corresponding to the third antenna.
Optionally, the chip may determine to control the antenna changeover switch to turn on the radio frequency path corresponding to which of the second antenna and the third antenna, specifically:
for example: the chip may obtain the signal quality of the second antenna and the signal quality of the third antenna, and determine to control the antenna changeover switch to turn on the radio frequency path corresponding to the antenna with the optimal signal quality according to the signal quality of the second antenna and the signal quality of the third antenna.
Or the chip may obtain the signal quality of the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch, and determine to control the antenna change-over switch to conduct the radio frequency path corresponding to the other antenna when the signal quality of the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is lower than a preset threshold, where the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is the second antenna and the other antenna is the third antenna, or the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is the third antenna and the other antenna is the second antenna.
Or the chip may obtain the throughput of the second antenna and the throughput of the third antenna, and determine, according to the throughput of the second antenna and the throughput of the third antenna, the radio frequency path corresponding to the antenna for controlling the antenna changeover switch to conduct the antenna with the optimal throughput.
Or the chip may obtain a throughput rate of an antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch, and determine to control the antenna change-over switch to conduct a radio frequency path corresponding to another antenna when the throughput rate of the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is lower than a preset throughput rate, where the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is a second antenna and the another antenna is a third antenna, or the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is a third antenna and the another antenna is a second antenna.
In some embodiments, after determining that the signal strength of an antenna (e.g., a second antenna or a third antenna) corresponding to the currently-turned-on radio frequency path of the antenna switch is greater than a preset strength threshold, the chip sends a control instruction to the antenna switch.
The beneficial effects of the methods provided by the second aspect and the possible implementations of the second aspect may refer to the beneficial effects brought by the first aspect and the possible implementations of the first aspect, and are not repeated herein.
In a second aspect, an embodiment of the present application provides a communication apparatus for increasing a radio frequency path to improve a MIMO throughput direction, including: the control module is used for sending a control instruction to an antenna change-over switch, wherein the control instruction is used for controlling the antenna change-over switch to conduct a radio frequency channel corresponding to the second antenna or a radio frequency channel corresponding to a third antenna; and the transmission module is used for transmitting a first signal through a radio frequency channel corresponding to the first antenna and transmitting a second signal through a radio frequency channel corresponding to the conducted second antenna or a radio frequency channel corresponding to the conducted third antenna.
For example, when the radio frequency path corresponding to the second antenna and the radio frequency path corresponding to the third antenna are both radio frequency receiving paths, the transmission module receives a first signal through the radio frequency path corresponding to the first antenna, and receives a second signal through the radio frequency path corresponding to the second antenna or the radio frequency path corresponding to the third antenna. When the radio frequency path corresponding to the second antenna and the radio frequency path corresponding to the third antenna are both radio frequency transmission paths, the transmission module transmits a first signal through the radio frequency path corresponding to the first antenna, and transmits a second signal through the conducted radio frequency path corresponding to the second antenna or the conducted radio frequency path corresponding to the third antenna.
Optionally, in some embodiments, the communication device may further include: the device comprises an acquisition module and a first determination module.
The acquisition module is used for acquiring the signal quality of the second antenna and the signal quality of the third antenna before the control module sends a control instruction to an antenna change-over switch; and the first determining module is used for determining a radio frequency channel corresponding to the antenna with the optimal signal quality for controlling the antenna changeover switch to be conducted according to the signal quality of the second antenna and the signal quality of the third antenna.
Or, the obtaining module is configured to obtain the signal quality of an antenna corresponding to the currently turned-on radio frequency channel of the antenna changeover switch before the control module sends the control instruction to the antenna changeover switch; the first determining module is configured to determine to control the antenna switch to switch on a radio frequency path corresponding to another antenna when the signal quality of the antenna corresponding to the radio frequency path currently switched on by the antenna switch is lower than a preset threshold, where the antenna corresponding to the radio frequency path currently switched on by the antenna switch is a second antenna and the another antenna is a third antenna, or the antenna corresponding to the radio frequency path currently switched on by the antenna switch is the third antenna and the another antenna is the second antenna.
Or, the obtaining module is configured to obtain a throughput rate of the second antenna and a throughput rate of the third antenna before the control module sends the control instruction to the antenna changeover switch; and the first determining module is used for determining a radio frequency path corresponding to the antenna with the optimal throughput rate by controlling the antenna switch to be switched on according to the throughput rate of the second antenna and the throughput rate of the third antenna.
Or, the obtaining module is configured to obtain a throughput rate of an antenna corresponding to a radio frequency path currently turned on by the antenna changeover switch before the control module sends the control instruction to the antenna changeover switch; the first determining module is configured to determine to control the antenna switch to switch on a radio frequency path corresponding to another antenna when a throughput rate of an antenna corresponding to a radio frequency path currently switched on by the antenna switch is lower than a preset throughput rate, where an antenna corresponding to the radio frequency path currently switched on by the antenna switch is a second antenna and the another antenna is a third antenna, or an antenna corresponding to the radio frequency path currently switched on by the antenna switch is the third antenna and the another antenna is the second antenna.
Optionally, in some embodiments, the communication device may further include: a second determination module. The second determining module may be configured to determine that the signal strength of an antenna corresponding to a currently-turned-on radio frequency path of the antenna changeover switch is greater than a preset strength threshold before the control module sends the control instruction to the antenna changeover switch, where the antenna corresponding to the currently-turned-on radio frequency path of the antenna changeover switch is the second antenna or the third antenna.
The beneficial effects of the communication apparatus provided in each possible implementation manner of the third aspect and the third aspect may refer to the beneficial effects brought by each possible implementation manner of the first aspect and the first aspect, which are not described herein again.
In a fourth aspect, an embodiment of the present application provides a terminal device, where the terminal device includes: a processor, a memory, a receiver, a transmitter; the receiver and the transmitter are both coupled to the processor, the processor controlling the receiving action of the receiver, the processor controlling the transmitting action of the transmitter;
wherein the memory is to store computer executable program code, the program code comprising instructions; when executed by a processor, the instructions cause the terminal device to perform the method as provided by the second aspect or possible embodiments of the second aspect.
In a fifth aspect, embodiments of the present application provide a communication device, which includes a unit, a module, or a circuit for performing the method provided in the second aspect or each possible implementation manner of the second aspect. The communication device may be a terminal device, or may be a module of the terminal device, for example, a chip of the terminal device.
In a sixth aspect, embodiments of the present application provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the second aspect or the various possible implementations of the second aspect.
In a seventh aspect, embodiments of the present application provide a computer-readable storage medium, which stores instructions that, when executed on a computer, cause the computer to perform the method of the second aspect or the various possible implementations of the second aspect.
In an eighth aspect, embodiments of the present application provide a chip, on which a computer program is stored, and when the computer program is executed by the chip, the method in the second aspect or various possible implementations of the second aspect is implemented.
According to the method for increasing the radio frequency path and improving the MIMO throughput direction and the terminal device, a path for forming the radio frequency path can be newly added for the first terminal device by newly adding the third antenna for the first terminal device. In this way, when a transmission path from a first antenna of a first terminal device to an antenna of a second terminal device and a transmission path from an antenna (a second antenna or a third antenna) corresponding to a currently conducted radio frequency path of an antenna switch of the first terminal device to the same antenna of the second terminal device are approximately the same (i.e., MIMO throughput directions are approximately the same), the chip may switch from the radio frequency path corresponding to the currently conducted antenna to a radio frequency path corresponding to another antenna by controlling the antenna switch, so as to perform signal transmission by using the other radio frequency path, thereby improving a positional relationship between two antennas used when the first terminal device and the second terminal device perform signal transmission, and further achieving an improvement of a transmission path from the two antennas of the first terminal device to the same antenna of the second terminal device (i.e., MIMO throughput directions), so that the first terminal device (e., a WiFi device) and the second terminal device may transmit a signal by using MIMO technology at any time The number of the first terminal device (for example, a WiFi device) and the second terminal device is increased, and therefore user experience is improved.
Drawings
Fig. 1 is a schematic diagram of communication between a WiFi device and a terminal device according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a MIMO scenario provided in an embodiment of the present application;
fig. 3 is a schematic diagram of an antenna position relationship when WiFi equipment and terminal equipment communicate with each other according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of another terminal device provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram of another terminal device provided in the embodiment of the present application;
fig. 7 is a schematic structural diagram of another terminal device provided in the embodiment of the present application;
fig. 8 is a schematic structural diagram of another terminal device provided in the embodiment of the present application;
fig. 9 is a schematic structural diagram of another terminal device provided in the embodiment of the present application;
fig. 10 is a schematic structural diagram of another terminal device provided in the embodiment of the present application;
fig. 11 is a schematic structural diagram of a radio frequency front end module according to an embodiment of the present disclosure;
fig. 12 is a schematic structural diagram of a chip according to an embodiment of the present disclosure;
fig. 13 is a flowchart illustrating a method for improving MIMO throughput direction by adding rf channels according to an embodiment of the present application;
fig. 14 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 15 is a schematic structural diagram of a terminal device according to an embodiment of the present application;
fig. 16 is a schematic structural diagram of a mobile phone according to an embodiment of the present application.
Detailed Description
Fig. 1 is a schematic diagram of communication between a WiFi device and a terminal device according to an embodiment of the present disclosure. As shown in fig. 1, in the prior art, in order to improve the transmission throughput between a WiFi device and a terminal device, a MIMO technology may be used for signal transmission between the WiFi device and the terminal device. Namely, the WiFi device and the terminal device respectively use multiple antennas to achieve multiple sending and multiple receiving.
Fig. 2 is a schematic diagram of a MIMO scenario provided in an embodiment of the present application. As shown in fig. 2, taking a WiFi device as a transmitting device and a terminal device as a receiving device as an example, it is assumed that the WiFi device is provided with two transmitting antennas, TX1 and TX2, respectively, and the terminal device is provided with two receiving antennas, RX1 and RX2, respectively.
In this scenario, a signal transmitted by one transmitting antenna of the WiFi device (i.e., the transmitting device) may be transmitted to two receiving antennas of the terminal device (i.e., the receiving device), and the one receiving antenna of the terminal device (i.e., the receiving device) may receive signals transmitted by the two transmitting antennas of the WiFi device (i.e., the transmitting device). That is, there are four transmission paths between the WiFi device (i.e., the transmitting device) and the terminal device (i.e., the receiving device), which are:
(1) transmission path h from a transmit antenna TX1 to a receive antenna RX111；
(2) Transmission path h from a transmit antenna TX2 to a receive antenna RX112；
(3) Transmission path h from a transmit antenna TX1 to a receive antenna RX221；
(4) Transmission path h from a transmit antenna TX2 to a receive antenna RX222。
Let the signals (input signals) input to two transmitting antennas of a WiFi device (i.e. a transmitting device) be x respectively1And x2The signals (output signals) received by the terminal equipment (receiving equipment) through two receiving antennas are y1And y2Then, the relationship between the output signal and the input signal and the transmission path is shown in the following formula (1):
Figure GPA0000297503010000091
from the relationship between the output signal and the input signal and the transmission path shown in equation (1), the relationship between the output signal matrix Y and the input signal matrix X and the channel matrix H can be obtained as shown in the following equation (2):
Y＝HX+n (2)
where n is the noise of the terminal device (i.e., the receiving device),
Figure GPA0000297503010000092
the terminal device (i.e. the receiving device) may demodulate the signal X transmitted by the WiFi device (i.e. the transmitting device) according to the relationship between the output signal matrix Y and the input signal matrix X and the channel matrix H in the following manner, specifically:
firstly, inverting the channel matrix H to obtain an inverse matrix H of the channel matrix H-1，H-1Can be expressed as the following equation (3):
Figure GPA0000297503010000093
then, both sides of the formula (2) are simultaneously multiplied by H-1Obtaining the following formula (4)
H-1Y＝H-1HX+H-1n (4)
The signal X transmitted by the WiFi device (i.e. the transmitting device) can be obtained according to the above formula (4), which is specifically shown in the following formula (5):
X＝H-1Y-H-1n (5)
fig. 3 is a schematic diagram of an antenna position relationship when WiFi equipment and terminal equipment communicate with each other according to an embodiment of the present disclosure. As shown in fig. 3, the terminal device and the WiFi device may move during communication, and when the terminal device moves to some position (for example, the position shown in fig. 3), the transmission path between the two antennas of the WiFi device and the two antennas of the terminal device may be approximately the same. I.e. the MIMO throughput direction between the two antennas of the WiFi device and the same antenna of the terminal device is approximately the same.
Still taking the WiFi device as the sending device and the terminal device as the receiving device as an example, when the terminal device (i.e. the receiving device) moves to some location (e.g. the receiving device)Position shown in fig. 3), transmission path h from transmit antenna TX1 to receive antenna RX111Transmission path h from transmitting antenna TX2 to receiving antenna RX112Approximately the same, transmission path h from transmit antenna TX1 to receive antenna RX221Transmission path h from transmitting antenna TX2 to receiving antenna RX222Are approximately the same. I.e. h11≈h12，h21≈h22。
In this scenario, if a WiFi device (i.e. a transmitting device) still uses MIMO technology to transmit signals to a terminal device (i.e. a receiving device), i.e. transmits an input signal matrix X to the terminal device (i.e. the receiving device) through two transmitting antennas, when the terminal device (i.e. the receiving device) solves the input signal matrix X according to the relationship between the output signal matrix Y and the input signal matrix X and the channel matrix H, the following problems may exist:
due to h11≈h12、h21≈h22Result in solving for H-1Time, left factor in equation (3)
Figure GPA0000297503010000094
Is infinite, so that the resulting H-1Infinity. H based on the infinity-1The terminal device (i.e., the receiving device) cannot demodulate the input signal matrix X normally using equation (5), resulting in a signal transmission failure.
Therefore, in the above scenario, the WiFi device no longer transmits input signals to the terminal device using MIMO technology, i.e. no longer uses two transmit antennas to transmit different input signals to the terminal device (e.g. x is transmitted using TX 1)1Sending x using TX22) Instead, the same input signal is transmitted to the terminal device using two transmit antennas (e.g., x is transmitted using TX1 and TX 2)1). On the contrary, the terminal device does not adopt the MIMO technology to transmit the input signal to the WiFi device any more. This approach may cause the transmission path between the WiFi device and the terminal device to degrade from 2 × 2 to 1 × 1, which in turn may cause the transmission throughput between the WiFi device and the terminal device to deteriorate and the user experience to be low.
In view of the above problem, an embodiment of the present application provides a terminal device, where the terminal device may improve a MIMO throughput direction by adding a radio frequency path, and avoid a situation that transmission paths between an antenna of the terminal device and antennas of other terminal devices are approximately the same, so that the terminal device and the other terminal devices may transmit signals by using the MIMO technology at any time, thereby improving a throughput rate of transmission between the terminal device and the other terminal devices, and further improving user experience.
The Terminal device according to the embodiment of the present application may also be referred to as a Terminal, a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), or the like. The terminal device may be a mobile phone (mobile phone), a tablet computer (pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a smart wearable device, a WiFi device, and the like.
That is to say, the terminal device provided in the embodiment of the present application includes, but is not limited to, the communication scenario between the antenna of the WiFi device and the terminal device, and may also be applicable to a scenario in which any two terminal devices communicate by using the MIMO technology.
The following describes the technical solution of the embodiment of the present application in detail with reference to specific embodiments, by taking the terminal device provided in the embodiment of the present application as a first terminal device and taking the terminal device performing signal transmission with the first terminal device as a second terminal device. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
For ease of understanding, reference will be made to certain terms used in the examples of the present application:
1. the chip may be any chip having a transceiver function. In some embodiments, the chip may also be referred to as a transceiver chip, or a WiFi chip. The specific designation of the chip is not limited in the embodiments of the present application.
2. A Radio Frequency (RF) front-end module (FEM) located between the chip and the antenna for amplifying and processing signals transmitted by the antenna to improve the transmission efficiency of the antenna. In some embodiments, the FEM may also be directly used to represent the rf front-end module, and how to simply refer to the rf front-end module does not affect the embodiments of the present application. The following embodiments are described by taking an example in which the FEM represents the rf front-end module.
3. The antenna switch may be any switch that switches according to a control signal, for example: single Pole Double Throw (SPDT) switch.
Fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present application. As shown in fig. 4, the terminal device is a first terminal device, and the first terminal device may include: the antenna comprises a first FEM, a second FEM, a first antenna, a second antenna, a third antenna, an antenna change-over switch and a chip;
the first antenna is connected with the common end of the first FEM, the receiving end of the first FEM is connected with a first receiving end RX0 of the chip, and the transmitting end of the first FEM is connected with a first transmitting end TX0 of the chip; a radio frequency path from the first antenna to the first receiving terminal RX0 of the chip may be referred to as a first radio frequency receiving path for receiving signals, and a radio frequency path from the first antenna to the first transmitting terminal TX0 of the chip may be referred to as a first radio frequency transmitting path for transmitting signals. It is understood that the first rf receive path may or may not include the first antenna. Accordingly, the first rf transmit path may or may not include the first antenna.
The second antenna is connected with the common end of the second FEM, the first end of the second FEM is connected with the first contact of the antenna change-over switch, the third antenna is connected with the second contact of the antenna change-over switch, the third contact of the antenna change-over switch is connected with the second end of the chip, and the control end of the antenna change-over switch is connected with the control end of the chip; the rf path from the second antenna to the second end of the chip may be referred to as a second rf path, that is, the rf path corresponding to the second antenna. The rf path from the third antenna to the second end of the chip may be referred to as a third rf path, i.e. the rf path corresponding to the third antenna. It will be appreciated that the second rf path may or may not include a second antenna. Accordingly, the third rf transmit path may or may not include a third antenna. It should be noted that the meaning of the second rf path is the same as that of the rf path corresponding to the second antenna, and this is not distinguished in the present application. The third rf path has the same meaning as the rf path corresponding to the third antenna, and this is not distinguished in this application.
The chip is used for controlling the antenna changeover switch to conduct the radio frequency channel corresponding to the second antenna or conduct the radio frequency channel corresponding to the third antenna for signal transmission. Namely, the second radio frequency path or the third radio frequency path is used for signal transmission with the second terminal equipment. It can be understood that when the antenna switch turns on the rf path corresponding to the second antenna, the rf path corresponding to the third antenna is in an off state, that is, the third rf path between the third antenna and the second end of the chip is in an off state. When the antenna changeover switch turns on the radio frequency path corresponding to the third antenna, the radio frequency path corresponding to the second antenna is in an off state, that is, the second radio frequency path between the second antenna and the second end of the chip is in an off state.
Specifically, the first terminal device provided in the embodiment of the present application further includes a third antenna in addition to the first antenna and the second antenna. The third antenna may be located between the first antenna and the second antenna, or may be located on one side of any one of the first antenna and the second antenna, and the positional relationship between the three antennas is not limited in the embodiments of the present application. Through the third antenna, a radio frequency path can be newly added to the first terminal device.
In this embodiment of the application, the chip may control the antenna switch to turn on the radio frequency path corresponding to the second antenna or turn on the radio frequency path corresponding to the third antenna, so as to perform signal transmission with the second terminal device using the second radio frequency path or the third radio frequency path. The second rf path and the third rf path may be a receiving path or a transmitting path. By adding a new radio frequency path for the first terminal device, when the transmission path from the first antenna of the first terminal device to the antenna of the second terminal device and the transmission path from the antenna (the second antenna or the third antenna) corresponding to the currently conducted radio frequency path of the antenna change-over switch of the first terminal device to the same antenna of the second terminal device are approximately the same (i.e. the MIMO throughput directions are approximately the same), the chip can switch the radio frequency path corresponding to the currently conducted antenna to the radio frequency path corresponding to the other antenna by controlling the antenna change-over switch so as to use the other radio frequency path for signal transmission, thereby improving the position relationship of the two MIMO antennas used when the first terminal device and the second terminal device perform signal transmission, and further achieving the purpose of improving the transmission path from the two antennas of the first terminal device to the same antenna of the second terminal device (i.e. the throughput directions), therefore, the first terminal device (for example, a WiFi device) and the second terminal device can adopt the MIMO technology to transmit signals at any time, so that the transmission throughput rate between the first terminal device (for example, the WiFi device) and the second terminal device is improved, and further the user experience is improved.
When the second radio frequency path and the third radio frequency path are both radio frequency receiving paths, the first terminal device may add a radio frequency receiving path to the first terminal device by using the following connection manners, specifically:
the first mode is as follows:
fig. 5 is a schematic structural diagram of another terminal device provided in the embodiment of the present application, and as shown in fig. 5, a first end of the second FEM is a receiving end of the second FEM, and a second end of the chip is a second receiving end RX1 of the chip. In this implementation, the transmitting terminal of the second FEM may be connected with the second transmitting terminal TX1 of the chip.
That is, the third antenna is connected to the second receiving terminal RX1 of the chip through the antenna changeover switch, and the second antenna is connected to the second receiving terminal RX1 of the chip through the receiving terminal of the second FEM and the antenna changeover switch in this order. At this time, the rf path from the second antenna to the second transmitting terminal TX1 of the chip may be referred to as a second rf transmitting path, the second rf path from the second antenna to the second receiving terminal RX1 of the chip may be referred to as a second rf receiving path, and the third rf path from the third antenna to the second receiving terminal RX1 of the chip may be referred to as a third rf receiving path. That is, a radio frequency receiving channel is added to the first terminal device through the third antenna.
Thus, when the first terminal device receives the signal, the chip can receive the first signal through the first radio frequency receiving path. The chip may receive the second signal by controlling the antenna switch to turn on the rf path corresponding to the second antenna or turn on the rf path corresponding to the third antenna, that is, select one rf receiving path between the second rf receiving path and the third rf receiving path to receive the second signal. For example, the first signal is y1The second signal is y2。
The second mode is as follows:
fig. 6 is a schematic structural diagram of another terminal device according to an embodiment of the present application, and as shown in fig. 6, a first end of the second FEM is a receiving end of the second FEM, and a second end of the chip is a transceiving end TRX of the chip. In this implementation, the transmitting terminal of the second FEM may be connected with the second transmitting terminal TX1 of the chip.
That is, the third antenna is connected to the transceiver terminal TRX of the chip through the antenna changeover switch, and the second antenna is connected to the transceiver terminal TRX of the chip through the receiving terminal of the second FEM and the antenna changeover switch in this order. At this time, the rf path from the second antenna to the second transmitting terminal TX1 of the chip may be referred to as a second rf transmitting path, the second rf path from the second antenna to the transceiving terminal TRX of the chip may be referred to as a second rf receiving path, and the third rf path from the third antenna to the transceiving terminal TRX of the chip may be referred to as a third rf receiving path. That is, a radio frequency receiving channel is added to the first terminal device through the third antenna.
Thus, when the first terminal device receives the signal, the chip can receive the first signal through the first radio frequency receiving path. The chip may receive the second signal by controlling the antenna switch to turn on the rf path corresponding to the second antenna or turn on the rf path corresponding to the third antenna, that is, select one rf receiving path between the second rf receiving path and the third rf receiving path to receive the second signal. For example, the first signal is y1The second signal is y2。
The third mode is as follows: fig. 7 is a schematic structural diagram of another terminal device provided in the embodiment of the present application, and as shown in fig. 7, when a first terminal device performs signal transmission in a half-duplex manner, a first end of a second FEM is a transmitting end of the second FEM, and a second end of a chip is a transceiving end TRX of the chip. In this implementation, the receiving terminal of the second FEM may be connected to the second receiving terminal RX1 of the chip.
That is, when the first terminal device performs signal transmission in a half-duplex manner, the third antenna is connected to the transceiving terminal TRX of the chip through the antenna changeover switch, and the second antenna is connected to the transceiving terminal TRX of the chip through the transmitting terminal of the second FEM and the antenna changeover switch in sequence. At this time, the rf path from the second antenna to the transceiving terminal TRX of the chip may be referred to as a second rf transmitting path, the second rf path from the second antenna to the second receiving terminal RX1 of the chip may be referred to as a second rf receiving path, and the third rf path from the third antenna to the transceiving terminal TRX of the chip may be referred to as a third rf receiving path. That is, a radio frequency receiving channel is added to the first terminal device through the third antenna.
Thus, when the first terminal device receives the signal, the chip can receive the first signal through the first radio frequency receiving path. The chip can switch on the radio frequency path corresponding to the second antenna or switch on the radio frequency path corresponding to the third antenna by controlling the antenna switch, so that one radio frequency receiving path is selected between the second radio frequency receiving path and the third radio frequency receiving path to receive the second signal. For example, the first signal is y1The second signal is y2。
In this scenario, although the second antenna is connected to the second receiving end RX1 of the chip through the receiving end of the second FEM, the signal received by the second rf receiving path is not received and used by the chip, if the chip turns on the rf path corresponding to the third antenna by controlling the antenna switch to receive the second signal, that is, the third rf receiving path is used to receive the second signal.
By any mode, a radio frequency receiving channel can be added for the first terminal device, so that the throughput rate of the received signals between the first terminal device and the second terminal device is improved.
When the second rf path and the third rf path are both rf transmission paths, the first terminal device may add one rf transmission path to the first terminal device by using the following connection manners, specifically:
the first mode is as follows:
fig. 8 is a schematic structural diagram of another terminal device provided in the embodiment of the present application, and as shown in fig. 8, a first end of the second FEM is a transmitting end of the second FEM, and a second end of the chip is a second transmitting end TX1 of the chip. In this implementation, the receiving terminal of the second FEM may be connected to the second receiving terminal RX1 of the chip.
That is, the third antenna is connected to the second transmitting terminal TX1 of the chip through the antenna switch, and the second antenna is connected to the second transmitting terminal TX1 of the chip through the transmitting terminal of the second FEM and the antenna switch in sequence. At this time, the rf path between the second antenna and the second receiving terminal RX1 of the chip may be referred to as a second rf receiving path, the second rf path between the second antenna and the second transmitting terminal TX1 of the chip may be referred to as a second rf transmitting path, and the third rf path between the third antenna and the second transmitting terminal TX1 of the chip may be referred to as a third rf transmitting path. That is, a radio frequency transmission channel is added to the first terminal device through the third antenna.
Thus, the first terminal equipment transmits signals, the coreThe patch may transmit a first signal over a first radio frequency transmit path. The chip may transmit the second signal by controlling the antenna switch to turn on the rf path corresponding to the second antenna or turn on the rf path corresponding to the third antenna, that is, one rf transmission path is selected between the second rf transmission path and the third rf transmission path to transmit the second signal. For example, the first signal is x1The second signal is x2。
The second mode is as follows:
fig. 9 is a schematic structural diagram of another terminal device according to an embodiment of the present application, and as shown in fig. 9, a first end of the second FEM is a transmitting end of the second FEM, and a second end of the chip is a transceiving end TRX of the chip. In this implementation, the receiving terminal of the second FEM may be connected to the second receiving terminal RX1 of the chip.
That is, the third antenna is connected to the transceiving terminal TRX of the chip through the antenna changeover switch, and the second antenna is connected to the transceiving terminal TRX of the chip through the transmitting terminal of the second FEM and the antenna changeover switch in this order. At this time, the rf path from the second antenna to the second receiving terminal RX1 of the chip may be referred to as a second rf receiving path, the second rf path from the second antenna to the transceiving terminal TRX of the chip may be referred to as a second rf transmitting path, and the third rf path from the third antenna to the transceiving terminal TRX of the chip may be referred to as a third rf transmitting path. That is, a radio frequency transmission channel is added to the first terminal device through the third antenna.
In this way, when the first terminal device transmits a signal, the chip may transmit a first signal through the first rf transmission path. The chip may transmit the second signal by controlling the antenna switch to turn on the rf path corresponding to the second antenna or turn on the rf path corresponding to the third antenna, that is, one rf transmission path is selected between the second rf transmission path and the third rf transmission path to transmit the second signal. For example, the first signal is x1The second signal is x2。
The third mode is as follows:
fig. 10 is a schematic structural diagram of another terminal device provided in the embodiment of the present application, and as shown in fig. 10, when a first terminal device performs signal transmission in a half-duplex manner, a first end of a second FEM is a receiving end of the second FEM, and a second end of a chip is a transceiving end TRX of the chip. In this implementation, the transmitting terminal of the second FEM is connected to the second transmitting terminal TX1 of the chip.
That is, when the first terminal device performs signal transmission in a half-duplex manner, the third antenna is connected to the transceiver terminal TRX of the chip through the antenna changeover switch, and the second antenna is connected to the transceiver terminal TRX of the chip through the receiving terminal of the second FEM and the antenna changeover switch in sequence. At this time, the rf path from the second antenna to the transceiving terminal TRX of the chip may be referred to as a second rf receiving path, the second rf path from the second antenna to the second transmitting terminal TX1 of the chip may be referred to as a second rf transmitting path, and the third rf path from the third antenna to the transceiving terminal TRX of the chip may be referred to as a third rf transmitting path. That is, a radio frequency transmission channel is added to the first terminal device through the third antenna.
In this way, when the first terminal device transmits a signal, the chip may transmit a first signal through the first rf transmission path. The chip can switch on the radio frequency path corresponding to the second antenna or switch on the radio frequency path corresponding to the third antenna by controlling the antenna switch, so that one radio frequency transmission path is selected between the second radio frequency transmission path and the third radio frequency transmission path to transmit the second signal. For example, the first signal is x1The second signal is x2。
In this scenario, although the second antenna is connected to the second transmitting terminal TX1 of the chip through the transmitting terminal of the second FEM, the second rf transmitting path is not used by the chip, if the chip turns on the rf path corresponding to the third antenna by controlling the antenna switch to transmit the second signal, that is, the third rf transmitting path is used to transmit the second signal.
By any mode, a radio frequency transmission channel can be newly added for the first terminal device, so that the throughput rate of signals transmitted between the first terminal device and the second terminal device is improved.
When the first terminal device is implemented by any of the foregoing ways as a new radio frequency path (for example, a radio frequency transmitting path or a radio frequency receiving path) added to the first terminal device, the chip may automatically control the antenna changeover switch to switch between the radio frequency path corresponding to the second antenna and the radio frequency path corresponding to the third antenna by using several ways, specifically:
for example, when the first terminal device and the second terminal device perform signal transmission, the chip may obtain, in real time or periodically, the signal quality of the second antenna and the signal quality of the third antenna, and control the antenna changeover switch to turn on a radio frequency path corresponding to an antenna with the best signal quality among the second antenna and the third antenna according to the obtained signal quality of the second antenna and the obtained signal quality of the third antenna, so as to perform signal transmission with the second terminal device.
For example, taking an antenna corresponding to the currently turned-on rf path of the antenna switch as the second antenna, the chip may obtain a signal transmitted by using the rf path corresponding to the second antenna, and use the quality of the signal (e.g., a signal-to-noise ratio of the signal, or a packet loss ratio of the signal, etc.) as the signal quality of the second antenna. Then, the chip may output a control signal to the antenna changeover switch, control the antenna changeover switch to switch from the radio frequency path corresponding to the second antenna to the radio frequency path corresponding to the third antenna (i.e., turn on the radio frequency path corresponding to the third antenna to turn off the radio frequency path corresponding to the second antenna), obtain a signal transmitted by using the radio frequency path corresponding to the third antenna, and use the quality of the signal as the signal quality of the third antenna. Finally, the chip may compare the signal quality of the two antennas, and the better the signal quality is, the less the interference of the transmission path between the antenna and the antenna of the second terminal device is, that is, the transmission path between the first antenna and the antenna of the second terminal device is, the more the difference is between the transmission path between the antenna with the best signal quality in the second antenna and the third antenna and the same antenna of the second terminal device (that is, the difference is more in the MIMO throughput direction). At this time, the first terminal device resides on the antenna with the best signal quality, and a transmission path from the two antennas of the first terminal device to the same antenna of the second terminal device can be improved (i.e., the MIMO throughput direction is improved), so that the first terminal device and the second terminal device can transmit signals by adopting the MIMO technology at any time, the transmission throughput rate between the first terminal device and the second terminal device is improved, and further, the user experience is improved.
For another example, when the first terminal device and the second terminal device perform signal transmission, the chip may control the antenna changeover switch to turn on a radio frequency path corresponding to another antenna to perform signal transmission with the second terminal device when the signal quality of the antenna corresponding to the currently-turned-on radio frequency path is lower than a preset threshold; the antenna corresponding to the currently conducted radio frequency path is a second antenna, and the other antenna is a third antenna, or the antenna corresponding to the currently conducted radio frequency path is a third antenna, and the other antenna is a second antenna. The size of the preset threshold may be determined according to transmission requirements.
For example, taking an antenna corresponding to the currently turned-on rf path of the antenna switch as the second antenna, the chip may obtain a signal transmitted by using the rf path corresponding to the second antenna, and use the quality of the signal (e.g., a signal-to-noise ratio of the signal, or a packet loss ratio of the signal, etc.) as the signal quality of the second antenna. At this time, if the signal quality of the second antenna is lower than the preset threshold, it indicates that the interference of the transmission path between the second antenna and the antenna of the second terminal device by the transmission path between the first antenna and the same antenna of the second terminal device is large, that is, the transmission path from the first antenna to the antenna of the second terminal device is similar to the transmission path from the second antenna to the same antenna of the second terminal device (that is, the MIMO throughput direction is similar). In this case, the chip may output a control signal to the antenna changeover switch, and control the antenna changeover switch to switch from the radio frequency path corresponding to the second antenna to the radio frequency path corresponding to the third antenna, so as to use the first antenna and the third antenna to perform signal transmission with the second terminal device, thereby improving a transmission path from the two antennas of the first terminal device to the same antenna of the second terminal device (i.e., improving a MIMO throughput direction), so that the first terminal device and the first terminal device may transmit signals by using an MIMO technique at any time, improving a transmission throughput between the first terminal device and the second terminal device, and further improving user experience.
For another example, when the first terminal device and the second terminal device perform signal transmission, the chip may obtain a throughput rate of the second antenna and a throughput rate of the third antenna, and control the antenna switch to conduct the radio frequency path corresponding to the antenna with the optimal throughput rate to perform signal transmission with the second terminal device according to the throughput rate of the second antenna and the throughput rate of the third antenna.
For example, taking an antenna corresponding to the currently turned-on rf path of the antenna switch as the second antenna, the chip may obtain a throughput rate (also referred to as a signal transmission rate) of the second antenna. Then, the chip may output a control signal to the antenna switch to control the antenna switch to switch from the radio frequency path corresponding to the second antenna to the radio frequency path corresponding to the third antenna (i.e., turn on the radio frequency path corresponding to the third antenna and turn off the radio frequency path corresponding to the second antenna), so as to obtain the throughput of the third antenna. It can be understood that the chip may also obtain the throughput of the second antenna or the third antenna in other existing manners, for example, based on a packet loss rate during signal transmission, which is not described herein again. Finally, the chip may compare throughput rates of the two antennas, and the better the throughput rate is, the less the interference of the transmission path between the antenna and the antenna of the second terminal device is, that is, the transmission path between the first antenna and the antenna of the second terminal device is, the more the difference is between the transmission path between the antenna with the best throughput rate (the second antenna or the third antenna) and the transmission path between the antenna with the best throughput rate (the more the difference is between MIMO throughput directions). At this time, the first terminal device resides on the antenna with the optimal throughput rate, and a transmission path from the two antennas of the first terminal device to the same antenna of the second terminal device (i.e., improving the MIMO throughput direction) can be improved, so that the first terminal device and the second terminal device can transmit signals by adopting the MIMO technology at any time, the transmission throughput rate between the first terminal device and the second terminal device is improved, and further, the user experience is improved.
For another example, when the first terminal device and the second terminal device perform signal transmission, the chip may control the antenna changeover switch to turn on a radio frequency path corresponding to another antenna to perform signal transmission with the second terminal device when the throughput rate of the antenna corresponding to the currently-turned-on radio frequency path is lower than a preset throughput rate; the antenna corresponding to the currently conducted radio frequency path is a second antenna, and the other antenna is a third antenna, or the antenna corresponding to the currently conducted radio frequency path is a third antenna, and the other antenna is a second antenna. The size of the preset throughput rate may be determined according to a transmission requirement.
For example, taking an antenna corresponding to the currently turned-on radio frequency path of the antenna changeover switch as the second antenna, the chip may obtain the throughput rate of the second antenna. At this time, if the throughput of the second antenna is lower than the preset throughput, it indicates that the interference of the transmission path between the second antenna and the antenna of the second terminal device is larger by the transmission path between the first antenna and the same antenna of the second terminal device, that is, the transmission path from the first antenna to the antenna of the second terminal device is similar to the transmission path from the second antenna to the antenna of the second terminal device (that is, the MIMO throughput direction is similar). In this case, the chip may output a control signal to the antenna changeover switch, and control the antenna changeover switch to switch from the radio frequency path corresponding to the second antenna to the radio frequency path corresponding to the third antenna, so as to use the first antenna and the third antenna to perform signal transmission with other first terminal devices, thereby improving a transmission path from the two antennas of the first terminal device to the same antenna of the second terminal device (i.e., improving a MIMO throughput direction), so that the first terminal device and the second terminal device may transmit signals by using the MIMO technology at any time, improving a transmission throughput between the first terminal device and the second terminal device, and further improving user experience.
Although the above examples all use the antenna corresponding to the currently turned-on rf path of the antenna switch as the second antenna, how the chip switches between the rf path corresponding to the second antenna and the rf path corresponding to the third antenna is described and illustrated. However, it can be understood by those skilled in the art that when the antenna corresponding to the currently conducted radio frequency path of the antenna switch is the third antenna, the chip may also switch between the radio frequency path corresponding to the second antenna and the radio frequency path corresponding to the third antenna by any one of the aforementioned manners, which has similar implementation principles and technical effects, and is not described herein again.
In addition, the closer the first terminal device is to the second terminal device, the more likely it is that the transmission paths between the antenna of the first terminal device and the antenna of the second terminal device are approximately the same. Therefore, in some embodiments, the chip may further determine whether to switch between the radio frequency path corresponding to the second antenna and the radio frequency path corresponding to the third antenna in any one of the above manners when the signal strength of the antenna corresponding to the radio frequency path currently turned on by the antenna changeover switch is greater than the preset strength threshold. In this way, power consumption of the chip can be saved.
It is to be understood that, in the above embodiments, the first terminal device provided in the embodiments of the present application is described and explained by taking the third antenna as an example, and in some embodiments, the first terminal device may further include a third FEM. Wherein the third antenna is connected to the antenna changeover switch through the third FEM. In this way, the signal transmitted by the third antenna can be amplified and processed to improve the transmission efficiency of the antenna. In a specific implementation, when the third antenna is used to provide a newly added rf receiving path for the first terminal device, the third antenna may be connected to the common end of the third EFM, and the receiving end of the third FEM is connected to the second contact of the antenna changeover switch. When the third antenna is used to provide a new rf transmission path for the first terminal device, the third antenna may be connected to the common end of the third EFM, and the transmitting end of the third FEM is connected to the second contact of the antenna changeover switch.
However, the present embodiment is not limited to the structure and composition of the first FEM, the second FEM, and the third FEM, and any FEM in the related art may be used. For example, fig. 11 is a schematic structural diagram of a radio frequency front end module according to an embodiment of the present application, and as shown in fig. 11, the FEM according to the embodiment may include: the connection relationship between the Power Amplifier (PA), the Low Noise Amplifier (LNA), the switch, and the like can be as shown in fig. 11, and will not be described herein.
Those skilled in the art will appreciate that the FEM structure shown in fig. 11 does not constitute a limitation of the FEM and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. For example, when the first terminal device does not need to raise the transmission capability of an antenna, the FEM that does not include a PA may be connected to the antenna. When the first terminal device does not need to improve the receiving capability of an antenna, a FEM without an LNA may be connected to the antenna.
Accordingly, the embodiment of the present application does not limit the structure and composition of the chip, and any chip with a transceiving function in the prior art may be used. For example, fig. 12 is a schematic structural diagram of a chip according to an embodiment of the present disclosure. As shown in fig. 12, the chip according to the embodiment of the present application may include: the baseband part, the radio frequency part, and the like, the devices included in each part, and the connection relationship of each device may be as shown in fig. 12, and are not described herein again.
Those skilled in the art will appreciate that fig. 12 is a schematic diagram of a chip illustrating one transmission path and one reception path, which is not limiting for the chip and may include more or less components than those shown, or some components may be combined, or a different arrangement of components. For example, other interfaces, components or circuits for realizing the functions of storage, and the like may be further included. Or, the functions of the chip may be implemented by multiple chips, for example, there may be another chip in the baseband part, and the radio frequency may be split into 2.4G radio frequency, 5G radio frequency, and the like. In addition, the number of the transmitting paths and the receiving paths included in the chip may be adjusted according to actual situations when the chip is specifically implemented, and is not limited.
According to the terminal device provided by the embodiment of the application, a path forming a radio frequency channel can be newly added for the first terminal device by newly adding the third antenna for the first terminal device. In this way, when a transmission path from a first antenna of a first terminal device to an antenna of a second terminal device and a transmission path from an antenna (a second antenna or a third antenna) corresponding to a currently conducted radio frequency path of an antenna switch of the first terminal device to the same antenna of the second terminal device are approximately the same (i.e., MIMO throughput directions are approximately the same), the chip may switch from the radio frequency path corresponding to the currently conducted antenna to a radio frequency path corresponding to another antenna by controlling the antenna switch, so as to perform signal transmission by using the other radio frequency path, thereby improving a positional relationship between two antennas used when the first terminal device and the second terminal device perform signal transmission, and further achieving an improvement of a transmission path from the two antennas of the first terminal device to the same antenna of the second terminal device (i.e., MIMO throughput directions), so that the first terminal device (e., a WiFi device) and the second terminal device may transmit signals by using MIMO technology at any time The signal improves the transmission throughput rate between the first terminal device (for example, a WiFi device) and the second terminal device, and further improves the user experience.
In addition, although the foregoing embodiment illustrates the first terminal device exemplified by one first antenna, one second antenna, and one third antenna, in a specific implementation, the first terminal device may appropriately increase the number of the first antenna, the second antenna, and the third antenna, and the number of the antenna switches according to a specific usage scenario, which is not limited in this application. That is, a scenario applicable to the embodiment of the present application includes, but is not limited to, a first terminal device that performs communication by using two antennas, and may also be applicable to a first terminal device that performs communication by using more antennas, which is not described again.
Fig. 13 is a flowchart illustrating a method for improving MIMO throughput direction by adding rf channels according to an embodiment of the present disclosure. The main body of the method may be the chip according to the foregoing embodiments. As shown in fig. 13, the method includes:
s101, sending a control instruction to an antenna change-over switch, wherein the control instruction is used for controlling the antenna change-over switch to conduct a radio frequency channel corresponding to the second antenna or conduct a radio frequency channel corresponding to a third antenna.
S102, transmitting a first signal through a radio frequency channel corresponding to a first antenna, and transmitting a second signal through a radio frequency channel corresponding to the conducted second antenna or a radio frequency channel corresponding to the conducted third antenna.
In this embodiment of the application, the chip may control the antenna switch to turn on the radio frequency path corresponding to the second antenna or turn on the radio frequency path corresponding to the third antenna, so as to perform signal transmission with the second terminal device using the second radio frequency path or the third radio frequency path. The second rf path and the third rf path may be a receiving path or a transmitting path. By adding a new radio frequency path for the first terminal device, when the transmission path from the first antenna of the first terminal device to the antenna of the second terminal device and the transmission path from the antenna (the second antenna or the third antenna) corresponding to the currently conducted radio frequency path of the antenna change-over switch of the first terminal device to the same antenna of the second terminal device are approximately the same (i.e. the MIMO throughput directions are approximately the same), the chip of the first terminal device can switch the radio frequency path corresponding to the currently conducted antenna to the radio frequency path corresponding to the other antenna by controlling the antenna change-over switch to perform signal transmission by using the other radio frequency path, thereby improving the position relationship of the two antennas used when the first terminal device and the second terminal device perform signal transmission, and further improving the transmission path from the two antennas of the first terminal device to the same antenna of the second terminal device (i.e. the MIMO throughput directions), therefore, the first terminal device (for example, a WiFi device) and the second terminal device can adopt the MIMO technology to transmit signals at any time, so that the transmission throughput rate between the first terminal device (for example, the WiFi device) and the second terminal device is improved, and further the user experience is improved.
For example, the chip may send a control instruction to the antenna changeover switch, and switch from the radio frequency path corresponding to the second antenna to the radio frequency path corresponding to the third antenna, so as to transmit the second signal using the radio frequency path corresponding to the third antenna. Or, the chip may send a control instruction to the antenna changeover switch, and switch from the radio frequency path corresponding to the third antenna to the radio frequency path corresponding to the second antenna, so as to transmit the second signal using the radio frequency path corresponding to the second antenna.
When the radio frequency path corresponding to the second antenna and the radio frequency path corresponding to the third antenna are both radio frequency receiving paths, the chip receives a first signal through the radio frequency path corresponding to the first antenna, and receives a second signal through the conducted radio frequency path corresponding to the second antenna or the conducted radio frequency path corresponding to the third antenna. When the radio frequency path corresponding to the second antenna and the radio frequency path corresponding to the third antenna are both radio frequency transmission paths, the chip transmits a first signal through the radio frequency path corresponding to the first antenna, and transmits a second signal through the conducted radio frequency path corresponding to the second antenna or the conducted radio frequency path corresponding to the third antenna.
Optionally, the chip may determine to control the antenna changeover switch to turn on the radio frequency path corresponding to which of the second antenna and the third antenna, specifically:
for example: the chip may obtain the signal quality of the second antenna and the signal quality of the third antenna, and determine to control the antenna changeover switch to turn on the radio frequency path corresponding to the antenna with the optimal signal quality according to the signal quality of the second antenna and the signal quality of the third antenna.
Or the chip may obtain the signal quality of the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch, and determine to control the antenna change-over switch to conduct the radio frequency path corresponding to the other antenna when the signal quality of the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is lower than a preset threshold, where the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is the second antenna and the other antenna is the third antenna, or the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is the third antenna and the other antenna is the second antenna.
Or the chip may obtain the throughput of the second antenna and the throughput of the third antenna, and determine, according to the throughput of the second antenna and the throughput of the third antenna, the radio frequency path corresponding to the antenna for controlling the antenna changeover switch to conduct the antenna with the optimal throughput.
Or the chip may obtain a throughput rate of an antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch, and determine to control the antenna change-over switch to conduct a radio frequency path corresponding to another antenna when the throughput rate of the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is lower than a preset throughput rate, where the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is a second antenna and the another antenna is a third antenna, or the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is a third antenna and the another antenna is a second antenna.
In some embodiments, after determining that the signal strength of an antenna (e.g., a second antenna or a third antenna) corresponding to the currently-turned-on radio frequency path of the antenna switch is greater than a preset strength threshold, the chip sends a control instruction to the antenna switch.
The method provided by the embodiment of the application can execute the actions of the chip in the foregoing embodiments, and the implementation principle and the technical effect are similar, which are not described again.
Fig. 14 is a schematic structural diagram of a communication device according to an embodiment of the present application. As shown in fig. 14, the communication device may be a terminal device, or may be a module of the terminal device, for example, a chip of the terminal device. The communication apparatus may include: a control module 11 and a transmission module 12.
The control module 11 is configured to send a control instruction to an antenna changeover switch, where the control instruction is used to control the antenna changeover switch to turn on a radio frequency path corresponding to the second antenna or turn on a radio frequency path corresponding to a third antenna;
the transmission module 12 is configured to transmit a first signal through a radio frequency path corresponding to a first antenna, and transmit a second signal through a radio frequency path corresponding to the conducted second antenna or a radio frequency path corresponding to the conducted third antenna.
For example, when the radio frequency path corresponding to the second antenna and the radio frequency path corresponding to the third antenna are both radio frequency receiving paths, the transmission module 12 receives a first signal through the radio frequency path corresponding to the first antenna, and receives a second signal through the radio frequency path corresponding to the second antenna or the radio frequency path corresponding to the third antenna. When the radio frequency path corresponding to the second antenna and the radio frequency path corresponding to the third antenna are both radio frequency transmission paths, the transmission module 12 transmits a first signal through the radio frequency path corresponding to the first antenna, and transmits a second signal through the conducted radio frequency path corresponding to the second antenna or the conducted radio frequency path corresponding to the third antenna.
With continued reference to fig. 14, optionally, in some embodiments, the communication device may further include: an acquisition module 13 and a first determination module 14.
The obtaining module 13 is configured to obtain the signal quality of the second antenna and the signal quality of the third antenna before the control module 11 sends a control instruction to an antenna changeover switch; and a first determining module 14, configured to determine, according to the signal quality of the second antenna and the signal quality of the third antenna, a radio frequency path corresponding to an antenna with an optimal signal quality, where the radio frequency path is controlled to be switched on by the antenna switch.
Or, the obtaining module 13 is configured to obtain, before the control module 11 sends the control instruction to the antenna changeover switch, the signal quality of an antenna corresponding to the currently turned on radio frequency channel of the antenna changeover switch; a first determining module 14, configured to determine to control the antenna switch to switch on a radio frequency path corresponding to another antenna when the signal quality of the antenna corresponding to the radio frequency path currently switched on by the antenna switch is lower than a preset threshold, where the antenna corresponding to the radio frequency path currently switched on by the antenna switch is a second antenna and the another antenna is a third antenna, or the antenna corresponding to the radio frequency path currently switched on by the antenna switch is a third antenna and the another antenna is a second antenna.
Or, the obtaining module 13 is configured to obtain the throughput rate of the second antenna and the throughput rate of the third antenna before the control module 11 sends the control instruction to the antenna changeover switch; and a first determining module 14, configured to determine, according to the throughput of the second antenna and the throughput of the third antenna, a radio frequency path corresponding to an antenna for controlling the antenna switch to turn on the antenna with the optimal throughput.
Or, the obtaining module 13 is configured to obtain a throughput rate of an antenna corresponding to a radio frequency path currently turned on by the antenna changeover switch before the control module 11 sends the control instruction to the antenna changeover switch; a first determining module 14, configured to determine to control the antenna switch to switch on a radio frequency path corresponding to another antenna when a throughput rate of an antenna corresponding to a currently-switched-on radio frequency path of the antenna switch is lower than a preset throughput rate, where an antenna corresponding to the currently-switched-on radio frequency path of the antenna switch is a second antenna and the another antenna is a third antenna, or an antenna corresponding to the currently-switched-on radio frequency path of the antenna switch is a third antenna and the another antenna is a second antenna.
With continued reference to fig. 14, optionally, in some embodiments, the communication device may further include: a second determination module 15. The second determining module 15 may be configured to determine, before the control module 11 sends the control instruction to the antenna changeover switch, that the signal strength of the antenna corresponding to the currently-turned-on radio frequency path of the antenna changeover switch is greater than a preset strength threshold, where the antenna corresponding to the currently-turned-on radio frequency path of the antenna changeover switch is the second antenna or the third antenna.
The communication device provided by the embodiment of the application can execute the actions of the chip in the foregoing embodiments, and the implementation principle and the technical effect are similar, which are not described again.
It should be noted that the above control module may be implemented as a transmitter, and the transmission module may be implemented as a transceiver, and may further include a transmitter and a receiver. And other modules can be realized in the form of software called by a processing element; or may be implemented in hardware. For example, the obtaining module may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and a function of the processing module may be called and executed by a processing element of the apparatus. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, when some of the above modules are implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor that can call program code. As another example, these modules may be integrated together, implemented in the form of a system-on-a-chip (SOC).
Fig. 15 is a schematic structural diagram of a terminal device according to an embodiment of the present application. As shown in fig. 15, the terminal device may include: a processor 31 (e.g., CPU), a memory 32, a receiver 33, a transmitter 34; both the receiver 33 and the transmitter 34 are coupled to the processor 31, the processor 31 controlling the receiving action of the receiver 33, the processor 31 controlling the transmitting action of the transmitter 34; the memory 32 may include a random-access memory (RAM) and may further include a non-volatile memory (NVM), such as at least one disk memory, and the memory 32 may store various instructions for performing various processing functions and implementing the method steps of the present application. Optionally, the terminal device related to the present application may further include: a power supply 35, a communication bus 36, and a communication port 37. The receiver 33 and the transmitter 34 may be integrated in the transceiver of the terminal device or may be separate transceiving antennas on the terminal device. The communication bus 36 is used to implement communication connections between the elements. The communication port 37 is used for realizing connection and communication between the terminal device and other peripherals.
In the embodiment of the present application, the memory 32 is used for storing computer executable program codes, and the program codes comprise instructions; when the processor 31 executes the instruction, the instruction causes the processor 31 of the terminal device to execute the processing action of the terminal device in the foregoing method embodiment, cause the receiver 33 to execute the receiving action of the terminal device in the foregoing method embodiment, and cause the transmitter 34 to execute the transmitting action of the terminal device in the foregoing method embodiment, which has similar implementation principles and technical effects, and is not described again here.
As described in the foregoing embodiment, the terminal device according to the embodiment of the present invention may be a device with a photographing function, such as a mobile phone, a tablet computer, or a PDA, and takes the terminal device as a mobile phone as an example: fig. 16 is a schematic structural diagram of a mobile phone according to an embodiment of the present application. Referring to fig. 16, the cellular phone includes: radio Frequency (RF) circuitry 1110, memory 1120, input unit 1130, display unit 1140, sensors 1150, audio circuitry 1160, wireless fidelity (WiFi) module 1170, processor 1180, and power supply 1190. Those skilled in the art will appreciate that the handset configuration shown in fig. 16 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The following describes each component of the mobile phone in detail with reference to fig. 16:
RF circuit 1110 may be used for receiving and transmitting signals during a message transmission or call, and in particular, for receiving downlink messages from a base station and then processing the received downlink messages to processor 1180; in addition, the uplink data is transmitted to the base station. Typically, the RF circuitry includes, but is not limited to, an antenna, at least one Amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the RF circuitry 1110 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE)), e-mail, Short Messaging Service (SMS), and the like.
The memory 1120 may be used to store software programs and modules, and the processor 1180 may execute various functional applications and data processing of the mobile phone by operating the software programs and modules stored in the memory 1120. The memory 1120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 1120 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The input unit 1130 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone 1100. Specifically, the input unit 1130 may include a touch panel 1131 and other input devices 1132. Touch panel 1131, also referred to as a touch screen, can collect touch operations of a user on or near the touch panel 1131 (for example, operations of the user on or near touch panel 1131 by using any suitable object or accessory such as a finger or a stylus pen), and drive corresponding connection devices according to a preset program. Alternatively, the touch panel 1131 may include two parts, namely, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1180, and can receive and execute commands sent by the processor 1180. In addition, the touch panel 1131 can be implemented by using various types, such as resistive, capacitive, infrared, and surface acoustic wave. The input unit 1130 may include other input devices 1132 in addition to the touch panel 1131. In particular, other input devices 1132 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The display unit 1140 may be used to display information input by the user or information provided to the user and various menus of the cellular phone. The Display unit 1140 may include a Display panel 1141, and optionally, the Display panel 1141 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, touch panel 1131 can be overlaid on display panel 1141, and when touch operation is detected on or near touch panel 1131, the touch operation is transmitted to processor 1180 to determine the type of touch event, and then processor 1180 provides corresponding visual output on display panel 1141 according to the type of touch event. Although in fig. 16, the touch panel 1131 and the display panel 1141 are two independent components to implement the input and output functions of the mobile phone, in some embodiments, the touch panel 1131 and the display panel 1141 may be integrated to implement the input and output functions of the mobile phone.
The handset may also include at least one sensor 1150, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 1141 according to the brightness of ambient light, and the light sensor may turn off the display panel 1141 and/or the backlight when the mobile phone moves to the ear. As one type of motion sensor, the acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
Audio circuitry 1160, speaker 1161, and microphone 1162 may provide an audio interface between a user and a cell phone. The audio circuit 1160 may transmit the electrical signal converted from the received audio data to the speaker 1161, and convert the electrical signal into a sound signal for output by the speaker 1161; on the other hand, the microphone 1162 converts the collected sound signals into electrical signals, which are received by the audio circuit 1160 and converted into audio data, which are then processed by the audio data output processor 1180, and then transmitted to, for example, another cellular phone via the RF circuit 1110, or output to the memory 1120 for further processing.
WiFi belongs to short-distance wireless transmission technology, and the cell phone can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 1170, and provides wireless broadband internet access for the user. Although fig. 16 shows the WiFi module 1170, it is understood that it does not belong to the essential constitution of the handset, and can be omitted entirely as needed within the scope not changing the essence of the invention.
The processor 1180 is a control center of the mobile phone, and is connected to various parts of the whole mobile phone through various interfaces and lines, and executes various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 1120 and calling data stored in the memory 1120, thereby performing overall monitoring of the mobile phone. Optionally, processor 1180 may include one or more processing units; preferably, the processor 1180 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated within processor 1180.
The phone also includes a power supply 1190 (e.g., a battery) for powering the various components, and preferably, the power supply may be logically connected to the processor 1180 via a power management system, so that the power management system may manage charging, discharging, and power consumption management functions.
The mobile phone may further include a camera 1200, which may be a front camera or a rear camera.
Although not shown, the mobile phone may further include a bluetooth module, a GPS module, etc., which will not be described herein.
It should be understood that although the terms first, second, third, etc. may be used to describe the antennas in the embodiments of the present application, the antennas should not be limited to these terms. These terms are only used to distinguish antennas from each other. For example, the first antenna may also be referred to as a second antenna, and similarly, the second antenna may also be referred to as a first antenna, without departing from the scope of embodiments of the present application.
It should be understood that although the terms first, second, third, etc. may be used to describe the FEMs in the embodiments of the present application, the FEMs should not be limited to these terms. These terms are only used to distinguish FEMs from one another. For example, a first FEM may also be referred to as a second FEM, and similarly, a second FEM may also be referred to as a first FEM, without departing from the scope of embodiments of the present application.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The term "plurality" herein means two or more. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship; in the formula, the character "/" indicates that the preceding and following related objects are in a relationship of "division".
It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of the present application.
It should be understood that, in the embodiment of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiment of the present application.

Claims (30)

1. A terminal device for increasing rf path to improve MIMO throughput, the terminal device comprising: the terminal equipment comprises a first radio frequency front-end module, a second radio frequency front-end module, a first antenna, a second antenna, a third antenna, an antenna change-over switch and a chip, wherein the third antenna is used for adding a radio frequency channel for the terminal equipment;
the first antenna is connected with a common end of the first radio frequency front end module, a receiving end of the first radio frequency front end module is connected with a first receiving end of the chip, and a transmitting end of the first radio frequency front end module is connected with a first transmitting end of the chip;
the second antenna is connected with the common end of the second radio frequency front end module, the first end of the second radio frequency front end module is connected with the first contact of the antenna change-over switch, the third antenna is connected with the second contact of the antenna change-over switch, the third contact of the antenna change-over switch is connected with the second end of the chip, and the control end of the antenna change-over switch is connected with the control end of the chip;
the chip is used for controlling the antenna changeover switch to conduct the radio frequency channel corresponding to the second antenna or conduct the radio frequency channel corresponding to the third antenna for signal transmission.
2. The terminal device of claim 1, wherein the first end of the second rf front-end module is a receiving end of the second rf front-end module, and the second end of the chip is a second receiving end of the chip or a transceiving end of the chip.
3. The terminal device of claim 2, wherein the transmitting terminal of the second rf front-end module is connected to the second transmitting terminal of the chip.
4. The terminal device of claim 1, wherein the first end of the second RF front-end module is a transmitting end of the second RF front-end module, and the second end of the chip is a transceiving end of the chip.
5. The terminal device according to claim 4, wherein a receiving end of the second RF front-end module is connected to the second receiving end of the chip.
6. The terminal device of claim 1, wherein the first end of the second RF front-end module is a transmitting end of the second RF front-end module, and the second end of the chip is a second transmitting end of the chip.
7. The terminal device according to claim 6, wherein a receiving end of the second RF front-end module is connected to the second receiving end of the chip.
8. The terminal device of claim 1, wherein the first end of the second rf front-end module is a receiving end of the second rf front-end module, and the second end of the chip is a transceiving end of the chip.
9. The terminal device of claim 8, wherein the transmitting terminal of the second rf front-end module is connected to the second transmitting terminal of the chip.
10. The terminal device according to any of claims 1-9, wherein the terminal device further comprises: a third RF front end module;
and the third antenna is connected with the first contact of the antenna change-over switch through the third radio frequency front-end module.
11. The terminal device according to any one of claims 1 to 9, wherein the chip is specifically configured to obtain signal quality of the second antenna and signal quality of the third antenna, and control the antenna switch to turn on a radio frequency path corresponding to an antenna with the best signal quality for signal transmission according to the signal quality of the second antenna and the signal quality of the third antenna.
12. The terminal device according to any one of claims 1 to 9, wherein the chip is specifically configured to control the antenna changeover switch to turn on a radio frequency path corresponding to another antenna for signal transmission when the signal quality of an antenna corresponding to a currently-turned-on radio frequency path is lower than a preset threshold;
the antenna corresponding to the currently conducted radio frequency path is a second antenna, and the other antenna is a third antenna, or the antenna corresponding to the currently conducted radio frequency path is a third antenna, and the other antenna is a second antenna.
13. The terminal device according to any one of claims 1 to 9, wherein the chip is specifically configured to obtain a throughput rate of the second antenna and a throughput rate of the third antenna, and control the antenna switch to conduct a radio frequency path corresponding to an antenna with an optimal throughput rate for signal transmission according to the throughput rate of the second antenna and the throughput rate of the third antenna.
14. The terminal device according to any one of claims 1 to 9, wherein the chip is specifically configured to control the antenna changeover switch to conduct a radio frequency path corresponding to another antenna for signal transmission when a throughput rate of an antenna corresponding to a currently conducted radio frequency path is lower than a preset throughput rate;
the antenna corresponding to the currently conducted radio frequency path is a second antenna, and the other antenna is a third antenna, or the antenna corresponding to the currently conducted radio frequency path is a third antenna, and the other antenna is a second antenna.
15. A method for increasing rf paths to improve MIMO throughput, comprising:
sending a control instruction to an antenna change-over switch, wherein the control instruction is used for controlling the antenna change-over switch to conduct a radio frequency channel corresponding to a second antenna or conduct a radio frequency channel corresponding to a third antenna, and the third antenna is used for newly adding a radio frequency channel;
and transmitting a first signal through a radio frequency channel corresponding to the first antenna, and transmitting a second signal through a radio frequency channel corresponding to the conducted second antenna or a radio frequency channel corresponding to the conducted third antenna.
16. The method of claim 15, wherein before sending the control command to the antenna switch, the method further comprises:
acquiring the signal quality of the second antenna and the signal quality of the third antenna;
and determining to control the antenna changeover switch to conduct the radio frequency channel corresponding to the antenna with the optimal signal quality according to the signal quality of the second antenna and the signal quality of the third antenna.
17. The method of claim 15, wherein before sending the control command to the antenna switch, the method further comprises:
acquiring the signal quality of an antenna corresponding to the currently conducted radio frequency channel of the antenna change-over switch;
when the signal quality of an antenna corresponding to a currently conducted radio frequency path of the antenna change-over switch is lower than a preset threshold value, determining to control the antenna change-over switch to conduct a radio frequency path corresponding to another antenna, wherein the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is a second antenna, and the another antenna is a third antenna, or the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is a third antenna, and the another antenna is a second antenna.
18. The method of claim 15, wherein before sending the control command to the antenna switch, the method further comprises:
acquiring the throughput rate of the second antenna and the throughput rate of the third antenna;
and determining a radio frequency path corresponding to the antenna with the optimal throughput rate by controlling the antenna changeover switch according to the throughput rate of the second antenna and the throughput rate of the third antenna.
19. The method of claim 15, wherein before sending the control command to the antenna switch, the method further comprises:
acquiring the throughput rate of an antenna corresponding to the currently conducted radio frequency channel of the antenna change-over switch;
when the throughput rate of the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is lower than a preset throughput rate, determining to control the antenna change-over switch to conduct a radio frequency path corresponding to another antenna, wherein the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is a second antenna, and the another antenna is a third antenna, or the antenna corresponding to the currently conducted radio frequency path of the antenna change-over switch is a third antenna, and the another antenna is a second antenna.
20. The method according to any of claims 15-19, wherein before sending the control command to the antenna switch, the method further comprises:
and determining that the signal intensity of the antenna corresponding to the currently conducted radio frequency channel of the antenna change-over switch is greater than a preset intensity threshold value, wherein the antenna corresponding to the currently conducted radio frequency channel of the antenna change-over switch is the second antenna or the third antenna.
21. The method according to any of claims 15-19, wherein transmitting the first signal via the rf path corresponding to the first antenna and transmitting the second signal via the rf path corresponding to the second antenna that is turned on or the rf path corresponding to the third antenna that is turned on comprises:
and receiving a first signal through a radio frequency path corresponding to the first antenna, and receiving a second signal through a radio frequency path corresponding to the conducted second antenna or a radio frequency path corresponding to the conducted third antenna.
22. A communications apparatus that increases radio frequency paths to improve MIMO throughput, comprising:
the control module is used for sending a control instruction to the antenna change-over switch, wherein the control instruction is used for controlling the antenna change-over switch to conduct a radio frequency channel corresponding to the second antenna or conduct a radio frequency channel corresponding to the third antenna, and the third antenna is used for adding a radio frequency channel for the communication device;
and the transmission module is used for transmitting a first signal through a radio frequency channel corresponding to the first antenna and transmitting a second signal through a radio frequency channel corresponding to the conducted second antenna or a radio frequency channel corresponding to the conducted third antenna.
23. The communications device of claim 22, further comprising:
an obtaining module, configured to obtain signal quality of the second antenna and signal quality of the third antenna before the control module sends a control instruction to an antenna changeover switch;
and the first determining module is used for determining a radio frequency channel corresponding to the antenna with the optimal signal quality for controlling the antenna changeover switch to be conducted according to the signal quality of the second antenna and the signal quality of the third antenna.
24. The communications device of claim 22, further comprising:
the antenna switching device comprises an acquisition module, a control module and a switching module, wherein the acquisition module is used for acquiring the signal quality of an antenna corresponding to a radio frequency channel which is currently conducted by an antenna switching switch before the control module sends a control instruction to the antenna switching switch;
the first determining module is configured to determine to control the antenna switch to switch on a radio frequency path corresponding to another antenna when the signal quality of the antenna corresponding to the radio frequency path currently switched on by the antenna switch is lower than a preset threshold, where the antenna corresponding to the radio frequency path currently switched on by the antenna switch is a second antenna and the another antenna is a third antenna, or the antenna corresponding to the radio frequency path currently switched on by the antenna switch is the third antenna and the another antenna is the second antenna.
25. The communications device of claim 22, further comprising:
an obtaining module, configured to obtain a throughput rate of the second antenna and a throughput rate of the third antenna before the control module sends a control instruction to an antenna changeover switch;
and the first determining module is used for determining a radio frequency path corresponding to the antenna with the optimal throughput rate by controlling the antenna switch to be switched on according to the throughput rate of the second antenna and the throughput rate of the third antenna.
26. The communications device of claim 22, further comprising:
the antenna switching device comprises an acquisition module, a switching module and a control module, wherein the acquisition module is used for acquiring the throughput rate of an antenna corresponding to a currently conducted radio frequency channel of an antenna switching switch before the control module sends a control instruction to the antenna switching switch;
the first determining module is configured to determine to control the antenna switch to switch on a radio frequency path corresponding to another antenna when a throughput rate of an antenna corresponding to a radio frequency path currently switched on by the antenna switch is lower than a preset throughput rate, where an antenna corresponding to the radio frequency path currently switched on by the antenna switch is a second antenna and the another antenna is a third antenna, or an antenna corresponding to the radio frequency path currently switched on by the antenna switch is the third antenna and the another antenna is the second antenna.
27. The communication device according to any of claims 22-26, wherein the communication device further comprises:
and a second determining module, configured to determine that, before the control module sends the control instruction to the antenna changeover switch, the signal strength of an antenna corresponding to the currently-turned-on radio frequency path of the antenna changeover switch is greater than a preset strength threshold, where the antenna corresponding to the currently-turned-on radio frequency path of the antenna changeover switch is the second antenna or the third antenna.
28. The communication device according to any one of claims 22 to 26, wherein the transmission module is specifically configured to receive a first signal through a radio frequency path corresponding to the first antenna, and receive a second signal through a radio frequency path corresponding to the conducted second antenna or a radio frequency path corresponding to the conducted third antenna.
29. A computer-readable storage medium storing a computer program or instructions for causing a computer to perform the method of any one of claims 15 to 21 when the computer program or instructions is run on the computer.
30. A chip on which a computer program is stored, which, when executed by the chip, carries out the method according to any one of claims 15 to 21.
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