CN111327351B

CN111327351B - Radio frequency transceiver circuit, wireless communication device and wireless communication method

Info

Publication number: CN111327351B
Application number: CN201811531990.6A
Authority: CN
Inventors: 潘添翼; 王勇; 淡江; 李鑫
Original assignee: Hangzhou Hikvision Digital Technology Co Ltd
Current assignee: Hangzhou Hikvision Digital Technology Co Ltd
Priority date: 2018-12-14
Filing date: 2018-12-14
Publication date: 2021-10-29
Anticipated expiration: 2038-12-14
Also published as: CN111327351A

Abstract

The application discloses radio frequency transceiver circuit, wireless communication equipment and wireless communication method, wherein, radio frequency transceiver circuit includes: a wireless signal transceiver; a plurality of antennas; the power divider comprises a first power division port and a plurality of second power division ports, wherein the first power division port is connected to the wireless signal transceiver; and in the phase shifters, the first phase shifting ports of the phase shifters are connected with the second power division ports of the power divider in a one-to-one correspondence manner, the second phase shifting ports of the phase shifters are connected to the wireless signal transceiver, and the third phase shifting ports of the phase shifters are connected with the antennas in a one-to-one correspondence manner. By adopting the embodiment of the application, the coverage blind spots of the wireless signals can be reduced, the directionality of the radio frequency transceiver circuit in receiving and sending the wireless signals is better, and meanwhile, the wireless transceiving performance of the radio frequency transceiver circuit can be improved.

Description

Radio frequency transceiver circuit, wireless communication device and wireless communication method

Technical Field

The present application relates to the field of electronic communications technologies, and in particular, to a radio frequency transceiver circuit, a wireless communication device, and a wireless communication method.

Background

With the rapid development of electronic communication technology, the antenna, as an important component of wireless communication equipment, plays an important role in the process of realizing alignment between the wireless communication equipment so as to successfully receive and transmit wireless signals.

In the actual working process, the position and the direction of an external antenna of the wireless communication equipment need to be determined according to the specific composition structure of the equipment, and the structural difference can cause uncertainty of the phase of a wireless signal reaching the antenna, so that receiving and transmitting blind spots in some directions occur.

Therefore, a new wireless communication technology capable of improving wireless transceiving performance is required.

Disclosure of Invention

The embodiment of the application provides a radio frequency transceiver circuit to solve the problem that a receiving and transmitting blind spot appears in some directions due to uncertainty of phases of wireless signals reaching an antenna caused by structural differences of equipment.

The embodiment of the application also provides wireless communication equipment which comprises the radio frequency transceiving circuit.

The embodiment of the application also provides a wireless communication method which is applied to the radio frequency transceiving circuit.

In order to solve the technical problem, the embodiment of the application adopts the following technical scheme:

in a first aspect, an embodiment of the present application provides a radio frequency transceiver circuit, including:

a wireless signal transceiver;

a plurality of antennas;

a power divider, including a first power division port and a plurality of second power division ports, where the first power division port is connected to the wireless signal transceiver;

and in the plurality of phase shifters, a first phase shift port of each phase shifter is connected to the plurality of second power division ports of the power divider in a one-to-one correspondence manner, a second phase shift port of each phase shifter is connected to the wireless signal transceiver, and a third phase shift port of each phase shifter is connected to the plurality of antennas in a one-to-one correspondence manner.

In a second aspect, an embodiment of the present application provides a wireless communication device, including: the radio frequency transceiver circuit of the first aspect.

In a third aspect, an embodiment of the present application provides a wireless communication method, which is applied to the radio frequency transceiver circuit according to the first aspect, and the wireless communication method includes:

in a receive mode, the wireless signal transceiver adjusts a phase of at least one phase shifter based on the phase control parameter to determine a target phase group for the plurality of phase shifters; the target complete machine signal corresponding to the target phase group meets a preset condition; the target complete machine signal is generated by a power divider according to the result of phase shift of wireless signals received by a plurality of antennas by the plurality of phase shifters based on the target phase group;

and after the radio frequency transceiver circuit is switched from the receiving mode to the transceiving mode, performing wireless communication based on the target phase group.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

the radio signal transceiver comprises a radio frequency transceiver circuit, a power divider, a phase shifter, a power divider, a plurality of antennas and a plurality of antennas, wherein the power divider is arranged in the radio frequency transceiver circuit, and is used for dividing a radio signal output by the radio signal transceiver to the plurality of antennas for transmission, combining branch signals respectively received by the plurality of antennas into a whole signal to be input to the radio signal transceiver, and adjusting the phase of the radio signal through the phase shifter connected between the power divider and each antenna in the process of transceiving the radio signal. Therefore, the coverage blind spots of the wireless signals can be reduced through the arrangement of the plurality of antennas, the problem that the receiving and sending blind spots exist in some directions due to the fact that uncertainty exists in the phase positions of the wireless signals reaching the antennas is solved, the directivity of the radio frequency receiving and sending circuit in the process of receiving and sending the wireless signals is better, the purpose of improving the signal strength of the wireless signals received and sent by the radio frequency receiving and sending circuit can be achieved through the arrangement of the plurality of phase shifters in one-to-one correspondence with the plurality of antennas, and the wireless receiving and sending performance of the radio frequency receiving and sending circuit is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic block diagram of an RF transceiver circuit in an embodiment of the present application;

FIG. 2 is a schematic block diagram of a wireless communication device in an embodiment of the present application;

fig. 3 is a flow chart illustrating a wireless communication method according to an embodiment of the present application;

fig. 4 is a flowchart illustrating a method for determining a target phase group in a wireless communication method according to an embodiment of the present application;

fig. 5 is a flowchart illustrating another method for determining a target phase group in a wireless communication method according to an embodiment of the present application;

fig. 6 is a schematic view of a scanning range in a wireless communication method according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Currently, there are two general types of WIFI (Wireless-Fidelity, Wireless network) communication systems used by Wireless communication devices: a one-to-one transmission system and a multiple-to-multiple transmission system.

The one-transmitting-one-receiving system has low cost, but because the single antenna is adopted, the receiving and transmitting directivity of the whole wireless communication equipment is poor, and blind spots in some directions exist. The Multiple-Input Multiple-Output (MIMO-Multiple-Output) system, which is a Multiple-antenna system using a MIMO (Multiple-Input Multiple-Output) mode or a reception hierarchical mode, is capable of receiving and transmitting radio signals in Multiple directions, so that the overall signal transmission/reception directivity of the radio communication device is good, and there is basically no blind spot in the transmission/reception direction, but the cost is high.

In addition, in an actual working process, the position and the direction of an external antenna of the wireless communication device need to be determined according to a specific composition structure of the device, for example, according to a structure of a camera in the device, and a phase of a wireless signal reaching the antenna is uncertain due to a structural difference, for example, a difference in a shape of the camera, so that a receiving and transmitting blind spot in some directions occurs, and normal use of the wireless communication device is affected.

Therefore, a wireless communication technology is needed to achieve the purpose of improving the wireless transceiving performance.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Example 1

Referring to fig. 1, an embodiment of the present application provides a radio frequency transceiver circuit, including:

a wireless signal transceiver 101;

a plurality of antennas 103;

a power divider 105, including a first power division port and a plurality of second power division ports, where the first power division port is connected to the wireless signal transceiver 101;

a plurality of phase shifters 107, wherein in the plurality of phase shifters 107, a first phase shift port of each phase shifter 107 is connected to a plurality of second power division ports of the power divider 105 in a one-to-one correspondence manner, a second phase shift port of each phase shifter 107 is connected to the wireless signal transceiver 101, and a third phase shift port of each phase shifter 107 is connected to the plurality of antennas 103 in a one-to-one correspondence manner.

It can be understood that, through the power divider 105 in the rf transceiver circuit according to the embodiment of the present application, the wireless signal output by the wireless signal transceiver 101 can be distributed to the multiple antennas 103 to be transmitted, and the branch signals respectively received by the multiple antennas 103 are combined into one complete signal to be input to the wireless signal transceiver 101, so that the rf transceiver circuit is used in cooperation with the multiple antennas 103 through the wireless signal transceiver 101 to implement wireless communication with other wireless communication devices, and further, in the process of transmitting and receiving the wireless signal, the phase of the wireless signal to be transmitted and received can be adjusted through the phase shifter 107 connected between the power divider 105 and each antenna 103, so as to implement alignment between each antenna 103 and other wireless communication devices. Therefore, the coverage blind spots of the wireless signals can be reduced through the arrangement of the plurality of antennas 103, the problem that the receiving and transmitting blind spots exist in some directions due to the fact that uncertainty exists in the phase positions of the wireless signals reaching the antennas 103 is solved, the directivity of the radio frequency receiving and transmitting circuit in receiving and transmitting the wireless signals is better, the purpose of improving the signal strength of the wireless signals received and transmitted by the radio frequency receiving and transmitting circuit can be achieved through the arrangement of the plurality of phase shifters 107 in one-to-one correspondence with the plurality of antennas 103, and the wireless receiving and transmitting performance of the radio frequency receiving and transmitting circuit is improved.

Optionally, the wireless signal transceiver 101 in this embodiment of the present application is a single-input single-output signal transceiver.

It can be appreciated that, by using a single transceiver with single transmission/reception function in conjunction with multiple antennas 103, while reducing the wireless signal coverage blind spots, the cost can be saved compared to a multi-antenna 103 system using MIMO mode or hierarchical reception mode.

Optionally, the wireless signal transceiver 101 in this embodiment of the application includes a WIFI signal transceiver.

It can be seen that, in the embodiment of the present application, by optimizing the rf transceiver circuit for implementing single-transceiver function in the related art, the single-transceiver wireless transceiver 101 is used in cooperation with the multiple antennas 103, so as to achieve an optimized design of the rf circuit of the multiple antennas 103, so that the multiple antennas 103 can be used on the single-transceiver wireless transceiver 101, and the optimized rf transceiver circuit has advantages in transmission distance and output power, and also has advantages in a receiving pattern of the rf transceiver circuit; in addition, when the radio frequency transceiver circuit is manufactured or installed, the phase changes due to changes of the feeding point, the length and the like of the antenna 103, so that normal wireless communication use is affected, and the problem of the phase changes can be effectively solved through adjustment of the phase shifter 107, so that the radio frequency transceiver circuit keeps high consistency during wireless communication.

The wireless signals to be transmitted by the single-transmission wireless signal transceiver 101 may be divided by the power divider 105 to be distributed to the phase shifters 107 and the antennas 103 connected to each other for transmission, and the phase shifters 107 perform phase shift processing on the wireless signals with phase deviation that need to be transmitted and received by the antennas 103; the power divider 105 may further synthesize and convert a plurality of branch signals obtained through phase shifting into a complete machine signal, and transmit the complete machine signal to the wireless signal transceiver 101, and the wireless signal transceiver 101 may control each phase shifter 107 to perform phase adjustment and compensation, so that the phase shifter 107 may adjust the phase of the entire link of the radio frequency transceiver circuit to a better transceiving state, thereby enabling the complete machine of the radio frequency transceiver circuit to have better wireless transceiving performance.

Preferably, the rf transceiver circuit in the embodiment of the present application may include 2 or 3 antennas 103, and 2 or 3 phasers are required to be matched correspondingly.

Further, the radio frequency transceiver circuit in the embodiment of the present application may further include:

a plurality of amplifiers and a plurality of attenuators, each of which is connected between the power divider 105 and each of the phase shifters 107 in a one-to-one correspondence.

It will be appreciated that each of the sequentially connected amplifiers, attenuators and phase shifters 107 may form a feed path, wherein the amplifiers and attenuators may be used to control the excitation amplitude and optimize the antenna 103 pattern performance, and the phase shifters 107 may be used to control the phase of the wireless signal being transmitted to and received from each antenna 103, i.e., to control the phase of each path.

Example 2

Referring to fig. 2, an embodiment of the present application provides a wireless communication device, which includes an rf transceiver circuit 201, where the rf transceiver circuit 201 is the rf transceiver circuit described in embodiment 1 above.

By adopting the radio frequency transceiver circuit described in the previous embodiment of the application, the wireless communication device can reduce the coverage blind spots of wireless signals through the arrangement of the plurality of antennas, solve the problem that the transmission and reception blind spots exist in some directions due to the uncertainty of the phase of the wireless signals reaching the antennas, ensure that the directionality of the wireless communication device is better when the wireless signals are received and transmitted, and achieve the purpose of improving the signal strength of the wireless signals transmitted and received by the wireless communication device through the arrangement of the plurality of phase shifters in one-to-one correspondence with the plurality of antennas, thereby improving the wireless transmission and reception performance of the radio frequency transceiver circuit.

It can be understood that the wireless communication device of the embodiment of the present application has all the advantages of the radio frequency transceiver circuit described in the previous embodiment.

The wireless communication device in the embodiment of the present application may be various suitable devices, for example, a router, a wireless communication box used for communication in a security monitoring system, or other various devices that need to implement wireless communication.

Example 3

Referring to fig. 3, an embodiment of the present application provides a wireless communication method, which is applied to the radio frequency transceiver circuit described in the foregoing embodiment, and the wireless communication method may include the following process steps:

in the receiving mode, the wireless signal transceiver adjusts a phase of at least one phase shifter based on the phase control parameter to determine a target phase group of the plurality of phase shifters S301.

And S303, after the receiving mode of the radio frequency receiving and transmitting circuit is switched to the receiving and transmitting mode, carrying out wireless communication based on the target phase group.

Wherein, the target complete machine signal corresponding to the target phase group meets the preset condition; and the target complete machine signal is generated by the power divider according to the result that the phase of the wireless signals received by the plurality of antennas is shifted by the plurality of phase shifters based on the target phase group.

It is to be appreciated that, in the receive mode, after the wireless signal transceiver adjusts the phase of at least one phase shifter at a time based on the phase control parameter, the respective phase currently corresponding to each of the plurality of phase shifters forms a phase group, and each phase group can be considered as a vector, and the respective phases included in the phase group correspond to components in the vector.

For example, the radio frequency transceiver circuit in the embodiment of the present application includes 3 antennas and 3 phase shifters, the antennas and the phase shifters are connected in a one-to-one correspondence, the radio signal transceiver adjusts the phases of the phase shifters 1 and 2 of the 3 phase shifters based on the phase control parameter, and the phase of the phase shifter 3 is kept unchanged, then the phase group may be represented as a vector { α, β, γ }, where α, β, γ represent phase components in the vector.

In addition, after the wireless signal transceiver adjusts the phase of at least one phase shifter once based on the phase control parameter, the multiple phase shifters perform phase shifting processing on the wireless signals received by each antenna based on the current phase, and then multiple branch signals can be obtained correspondingly, that is, the phase shifters, the antennas and the branch signals are in one-to-one correspondence, and then the power divider can correspondingly combine the multiple branch signals into one complete machine signal.

In the embodiment of the application, in a receiving mode, according to at least one phase group obtained by adjusting the phase of at least one phase shifter based on a phase control parameter by a wireless signal transceiver, a target phase group which enables a complete machine signal determined based on the phase group to meet a preset condition is determined, after the target phase group is determined and a radio frequency transceiver circuit is switched from the receiving mode to a transceiving mode, wireless communication can be performed based on the target phase group, so that when the radio frequency transceiver circuit performs subsequent wireless communication, the received complete machine signal can meet the preset condition, and each antenna can be controlled to transmit signals outwards based on the same phase group, so that a plurality of antennas of the radio frequency transceiver circuit can be aligned with other wireless communication devices in the process of receiving and transmitting wireless signals by the radio frequency transceiver circuit. Therefore, the coverage blind spots of the wireless signals can be reduced through the arrangement of the plurality of antennas, the problem that the transceiving blind spots exist in some directions due to the fact that uncertainty exists in the phase of the wireless signals reaching the antennas is solved, and the directionality of the radio frequency transceiving circuit is better when the radio frequency transceiving circuit receives and sends the wireless signals; moreover, the arrangement of the phase shifters in one-to-one correspondence with the antennas can achieve the purpose of improving the signal strength of the wireless signals transmitted and received by the radio frequency transceiver circuit, so that the wireless transmitting and receiving performance of the radio frequency transceiver circuit is improved.

It can be understood that, the phase of each phase shifter in the plurality of phase shifters is set to the corresponding phase in the target phase group, so that when the radio frequency transceiver circuit performs wireless communication, the plurality of phase shifters may perform phase shift on the wireless signal received by each antenna based on the set phase; then, the branch signals are synthesized by the power divider and sent to the wireless signal transceiver, and the plurality of phase shifters can adjust the branch signals divided by the power divider to the phase corresponding to the target phase group, so that the branch signals are accurately and reliably sent out through the antenna aligned with other wireless communication equipment.

In this embodiment of the present application, when the preset conditions for screening the target complete machine signals are different, the scheme for determining the target phase groups of the multiple phase shifters may also be implemented by different specific embodiments, and the process for determining the target phase groups of the multiple phase shifters is described in detail below with reference to different specific embodiments.

In one embodiment, the preset condition includes that the signal strength of the complete machine signal is greater than a first strength threshold, based on which step S301 may be implemented as the flow steps shown in fig. 4, including:

s401, under the condition that the current complete machine signal received by the wireless signal transceiver is smaller than or equal to a first intensity threshold, the wireless signal transceiver adjusts the phase of at least one phase shifter based on the phase control parameter.

It is to be understood that when the wireless signal transceiver adjusts the phase of at least one phase shifter based on the phase control parameter, each phase shifter may be processed one by one, that is, when one of the phase shifters is phase-adjusted, the phase of the other phase shifters remaining in the at least one phase shifter is kept unchanged, that is, the phase of one phase shifter is adjusted only once at a time; of course, the phase of one or more phase shifters may be adjusted once at a time.

And S403, the phase shifters perform phase shift on the wireless signals received by the antennas based on the adjusted phase groups to obtain new overall signals.

S405, taking the new complete machine signal as the current complete machine signal received by the wireless signal transceiver;

s407, detecting whether the signal strength of the current complete machine signal received by the wireless signal transceiver is greater than a first strength threshold, if so, executing step S409, otherwise, returning to execute step S401, that is, repeating the above steps S401 to S407 until the signal strength of the current complete machine signal received by the wireless signal transceiver is greater than the first strength threshold.

And S409, determining the phase group corresponding to the current complete machine signal received by the wireless signal transceiver as a target phase group.

Optionally, in the process that the wireless signal transceiver adjusts the phase of the at least one phase shifter based on the phase control parameter, a complete machine signal is correspondingly generated each time the wireless signal transceiver adjusts the phase of the at least one phase shifter, and whether the signal strength of the current complete machine signal satisfies a preset condition is determined each time the complete machine signal is generated, that is, whether the signal strength of the current complete machine signal is greater than a first strength threshold, and when it is detected that the current complete machine signal satisfies the preset condition, the phase group of the multiple phase shifters corresponding to the current complete machine signal may be determined as the target phase group.

Optionally, the process of adjusting the phase of the at least one phase shifter by the wireless signal transceiver based on the control parameter may be that, for each phase shifter of the at least one phase shifter, the wireless signal transceiver traverses a preset scanning range based on a preset step amount.

Optionally, in the process of determining the target phase group, the first complete machine signal that determines whether the preset condition is met may be a complete machine signal corresponding to an initial phase group of the multiple phase shifters before the phase of the at least one phase shifter is adjusted based on the phase control parameter, or may also be a complete machine signal corresponding to a current phase group obtained after the phase of the at least one phase shifter is adjusted for the first time based on the phase control parameter.

In another embodiment, the preset condition includes that the signal strength of the complete machine signal is the maximum signal strength among the plurality of complete machine signals received by the wireless signal transceiver, and optionally, the phase control parameter includes a first step amount, based on which step S301 may be executed as the flow shown in fig. 5, including:

s501, any phase shifter of the plurality of phase shifters is used as a first phase shifter.

S502, in the first scanning range, the wireless signal transceiver adjusts the phase of the first phase shifter according to the first step amount to obtain a first phase group of the plurality of phase shifters.

And S503, the power divider generates a first complete machine signal according to the result of the phase shift of the wireless signals received by the plurality of antennas by the plurality of phase shifters based on the first phase group.

S504, detecting whether the traversal of the first scanning range according to the first step amount is finished, if so, executing step S505, otherwise, returning to execute step S502, that is, repeatedly executing the above processes S502 to S504 until the first scanning range is traversed.

And S505, obtaining a first complete machine signal group.

S506, detecting whether the traversing of the plurality of phase shifters is finished, if yes, performing step S508, and if not, performing step S507.

S507, the second phase shifter of the plurality of phase shifters is used as a new first phase shifter, and the process returns to step S502, that is, the above processes S502 to S506 are repeatedly performed until the plurality of phase shifters are traversed.

Wherein the second phase shifter is different from the first phase shifter.

And S508, obtaining a plurality of first complete machine signal groups.

S509, determining a plurality of first signal strengths based on the plurality of first complete set of signals.

The first signal intensity corresponds to the first complete machine signal one to one.

Based on the plurality of first signal strengths, a target phase group is determined S510.

Optionally, for a process in which the wireless signal transceiver adjusts the phase of at least one phase shifter based on the phase control parameter, it is necessary to sequentially traverse a plurality of phase shifters of the radio frequency transceiver circuit, and for each phase shifter, the wireless signal transceiver traverses the first scanning range based on the phase control parameter of the first step amount; that is, for each phase shifter, the phase of each phase shifter is sequentially adjusted within a first scanning range according to a first step amount, for example, the first scanning range is 0 ° to 360 °, the first step amount is 40 °, so that the phase of each phase shifter needs to be adjusted 9 times, after each adjustment, a first phase group of a plurality of phase shifters is correspondingly obtained, and a first complete machine signal can be generated based on each first phase group, and then, after each phase shifter traverses the first scanning range according to the first step amount, a first complete machine signal group can be obtained; further, after traversing the plurality of phase shifters according to the process, a plurality of first complete machine signal groups corresponding to the plurality of phase shifters one to one are obtained; considering that each first complete machine signal group includes a plurality of first complete machine signals, each first complete machine signal corresponds to one first phase group, and each first complete machine signal corresponds to one first signal strength, the plurality of first signal strengths can be obtained while the plurality of first complete machine signal groups are obtained.

Optionally, in step S510, the target phase group may be directly determined based on a result of traversing the first scanning range by the first step amount, that is, the first complete machine signal meeting the preset condition may be locked based on the plurality of first signal strengths, and then the first phase group corresponding to the first complete machine signal meeting the preset condition is determined as the target phase group, where the process may include:

determining a maximum signal strength of the plurality of first signal strengths as a target signal strength;

determining a first complete machine signal corresponding to the target signal intensity as a target complete machine signal;

and determining a first phase group corresponding to the target complete machine signal as a target phase group.

Optionally, in step S510, on the basis of the result of traversing the first scanning range based on the first step amount, the second scanning range may be determined, and then the target phase group may be determined based on the second scanning range, where the process may include:

determining a second signal strength of the plurality of first signal strengths that is greater than a second strength threshold;

determining a second complete machine signal from the plurality of first complete machine signals based on the second signal strength;

determining a second scanning range based on a second phase group corresponding to a second complete machine signal, wherein the second scanning range is smaller than the first scanning range;

based on the second scan range, a target phase group is determined.

It is to be understood that there may be a plurality of second signal strengths, which are greater than the second strength threshold, in the plurality of first signal strengths, or there may be one second signal strength, and when there is one second signal strength, there is one corresponding second phase group, the second scanning range may be determined based on a specific phase range to which one second phase group belongs; when there are a plurality of second signal strengths and a plurality of corresponding second phase groups, an intermediate phase group may be determined based on the plurality of second phase groups to determine the second scanning range according to the specific phase range to which the intermediate phase group belongs. The intermediate phase group may be a group in which the signal strength of the corresponding second complete machine signal in the plurality of second phase groups is the greatest, or each phase in the intermediate phase group may be an average of a plurality of corresponding phases in the plurality of second phase groups, and so on.

Thereby, the target phase group is determined based on a result of the second step amount traversing the second scanning range further on the basis that the phase control parameter includes the second step amount smaller than the first step amount.

It will be appreciated that after the scanning range for determining the target phase group is narrowed by the above process, the target phase group is determined based on the smaller second scanning range. The following processes may be specifically included:

taking any one of the plurality of phase shifters as a third phase shifter;

in a second scanning range, the wireless signal transceiver adjusts the phase of the third phase shifter according to a second step amount to obtain a third phase group of the plurality of phase shifters; the power divider generates a third complete machine signal according to the result of phase shift of the wireless signals received by the plurality of antennas by the plurality of phase shifters based on the second phase group; repeatedly executing the processes until a second scanning range is traversed to obtain a second complete machine signal group;

taking a fourth phase shifter in the plurality of phase shifters as a new third phase shifter, and repeatedly executing the processes until the plurality of phase shifters are traversed to obtain a plurality of second complete machine signal groups, wherein the fourth phase shifter is different from the third phase shifter;

determining a plurality of third signal strengths based on the plurality of second complete machine signal groups, wherein the third signal strengths correspond to the third complete machine signals one to one;

based on the plurality of third signal strengths, a target phase group is determined.

It can be seen that the process is similar to the process shown in fig. 5, and for the process in which the wireless signal transceiver adjusts the phase of at least one phase shifter based on the phase control parameter, it is necessary to sequentially traverse a plurality of phase shifters of the radio frequency transceiver circuit, except that for each phase shifter, the wireless signal transceiver traverses a smaller second scanning range based on the smaller phase control parameter, and other traversal processes are the same and are not described herein again.

Optionally, the process of determining the target phase group based on the plurality of third signal strengths may specifically include the following processes, similar to the process of determining the target phase group based on the plurality of first signal strengths described above:

determining a maximum signal strength of the plurality of third signal strengths as a target signal strength;

determining a third complete machine signal corresponding to the target signal intensity as a target complete machine signal;

and determining a third phase group corresponding to the target complete machine signal as a target phase group.

Referring to fig. 6, taking the radio frequency transceiver circuit including 2 antennas as an example, a coarse scanning region in the figure represents a plurality of scanning phase points determined by traversing the first scanning range by a first step amount, where each phase point represents a first phase group, for example, traversing the first scanning range from 0 ° to 360 ° by a larger first step amount such as 30 ° or 40 °; the fine scan region in the graph represents a plurality of scan phase points determined by traversing the second scan range in a second step, each phase point representing a third phase group, for example, traversing the second scan range 0 ° to 90 ° with a smaller second step, such as 5 ° or 10 °; that is, the first scanning range 0 ° to 360 ° is reduced to the second scanning range 0 ° to 90 ° based on the plurality of first signal intensities, and further, the corresponding phase point or the third phase group with the maximum overall signal intensity in the fine scanning region is determined to be the target phase group, such as the shaded phase points shown in fig. 6.

Optionally, the wireless communication method according to this embodiment of the present application, before the adjusting, by the wireless signal transceiver, the phase of the at least one phase shifter based on the phase control parameter, may further include:

based on a preset initial phase, a plurality of phase shifters are initialized.

It can be understood that, in the receiving mode, before adjusting the phase of at least one phase shifter, the phases of a plurality of phase shifters may be initialized, for example, the preset initial phase is 0 °, and through the phase initialization, the process of adjusting the phase of at least one phase shifter may be enriched, so as to improve the accuracy and reliability of the target phase group finally determined through the above process of the embodiment of the present application.

Optionally, in the wireless communication method according to the embodiment of the present application, different manners are used to trigger the radio frequency transceiver circuit to enter a receiving mode, and in the receiving mode, the wireless signal transceiver adjusts the phase of at least one phase shifter based on the phase control parameter, so as to determine the target phase group of the plurality of phase shifters.

Optionally, the wireless communication method according to the embodiment of the present application may trigger the radio frequency transceiver circuit to enter the receiving mode in the following manner, including:

in a receiving and sending mode, detecting whether the signal intensity of the current complete machine signal received by the wireless signal transceiver is smaller than a third intensity threshold value;

under the condition that the signal intensity of the second current complete machine signal is not less than a third intensity threshold value, the radio frequency transceiving circuit keeps working in a transceiving mode;

and under the condition that the signal intensity of the second current complete machine signal is smaller than a third intensity threshold value, the radio frequency receiving and transmitting routing receiving mode is switched to the receiving mode.

It can be understood that, when the rf transceiver circuit operates in the transceiving mode, the signal strength (i.e., the receiving sensitivity) of the complete machine signal received by the rf transceiver circuit is monitored, and when the monitored signal strength of the complete machine signal is lower than the third strength threshold, it indicates that the wireless transceiving performance of the rf transceiver circuit is degraded and needs to be readjusted.

Optionally, the wireless communication method according to the embodiment of the present application may further trigger the radio frequency transceiver circuit to enter the receiving mode by:

detecting whether a phase adjustment period is reached or not in a transceiving mode;

under the condition that the phase adjustment period is not reached, the radio frequency transceiving circuit keeps working in a transceiving mode;

and when the phase adjustment period is reached, the radio frequency receiving and transmitting circuit is switched to a receiving mode by the receiving and transmitting mode.

It is understood that, when the rf transceiver circuit operates in the transceiving mode, the phase of the at least one phase shifter of the rf transceiver circuit may be adjusted repeatedly, so as to maintain the wireless transceiving performance of the rf transceiver circuit at a high level.

It is to be understood that the first intensity threshold, the second intensity threshold, the third intensity threshold, the first step amount, the second step amount, the first scanning range, the second scanning range, the preset initial phase, etc. in the above embodiments of the present application may be empirical values in actual operation, or preferred values set according to specific situations for implementing wireless communication, etc., and any suitable values may fall within the protection scope of the present application.

In the embodiment of the present application, a wireless communication method implemented based on the radio frequency transceiver circuit in the above embodiments can reduce coverage blind spots of wireless signals in wireless communication, solve the problem that transceiving blind spots exist in some directions due to uncertainty of phases of the wireless signals reaching an antenna, enable directionality to be better when the wireless signals are received and transmitted, and achieve the purpose of improving signal strength of the wireless signals wirelessly transceived by adjusting the phase of at least one phase shifter, thereby improving wireless transceiving performance.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A wireless communication method is applied to a radio frequency transceiver circuit, and the radio frequency transceiver circuit comprises:

a wireless signal transceiver;

a plurality of antennas;

a plurality of phase shifters, wherein a first phase shift port of each phase shifter is connected to the plurality of second power division ports of the power divider in a one-to-one correspondence manner, a second phase shift port of each phase shifter is connected to the wireless signal transceiver, and a third phase shift port of each phase shifter is connected to the plurality of antennas in a one-to-one correspondence manner;

the wireless communication method includes:

in a receive mode, the wireless signal transceiver adjusts a phase of at least one phase shifter based on the phase control parameter to determine a target phase group for the plurality of phase shifters; the target complete machine signal corresponding to the target phase group meets a preset condition, wherein the preset condition comprises that the signal intensity of the complete machine signal is greater than a first intensity threshold; the target complete machine signal is generated by a power divider according to the result of phase shift of wireless signals received by a plurality of antennas by the plurality of phase shifters based on the target phase group;

2. The method of claim 1, wherein the wireless signal transceiver adjusting the phase of at least one phase shifter based on a phase control parameter to determine a target phase group for a plurality of phase shifters comprises:

the wireless signal transceiver adjusts the phase of the at least one phase shifter based on the phase control parameter if the signal strength of the current complete machine signal received by the wireless signal transceiver is less than or equal to the first strength threshold;

the phase shifters perform phase shift on the wireless signals received by the antennas based on the adjusted phase groups to obtain new complete machine signals;

taking the new complete machine signal as a current complete machine signal received by the wireless signal transceiver, and repeatedly executing the processes until the signal intensity of the current complete machine signal received by the wireless signal transceiver is greater than the first intensity threshold;

and determining a phase group corresponding to the current complete machine signal received by the wireless signal transceiver as the target phase group.

3. The method of claim 1, wherein the predetermined condition comprises that the signal strength of the complete machine signal is the maximum of the signal strengths of the plurality of complete machine signals received by the wireless signal transceiver.

4. The method of claim 3, wherein the phase control parameter comprises a first step amount;

the wireless signal transceiver adjusting the phase of at least one phase shifter based on the phase control parameter to determine a target phase group for a plurality of phase shifters, comprising:

taking any one of the plurality of phase shifters as a first phase shifter;

within a first scanning range, the wireless signal transceiver adjusts the phase of the first phase shifter by the first step amount to obtain a first phase group of the plurality of phase shifters; the power divider generates a first complete machine signal according to a result that the phase shifters perform phase shift on wireless signals received by the antennas based on the first phase group; repeatedly executing the processes until the first scanning range is traversed to obtain a first complete machine signal group;

taking a second phase shifter of the plurality of phase shifters as a new first phase shifter, and repeatedly executing the above processes until the plurality of phase shifters are traversed to obtain a plurality of first whole set signal groups, wherein the second phase shifter is different from the first phase shifter;

determining a plurality of first signal strengths based on the plurality of first complete machine signal groups, the first signal strengths corresponding to the first complete machine signals one to one;

determining the target phase group based on the plurality of first signal strengths.

5. The method of claim 4, wherein determining the target phase group based on the plurality of first signal strengths comprises:

determining a first complete machine signal corresponding to the target signal strength as the target complete machine signal;

and determining a first phase group corresponding to the target complete machine signal as the target phase group.

6. The method of claim 4, wherein determining the target phase group based on the plurality of first signal strengths comprises:

determining a second scanning range based on a second phase group corresponding to the second complete machine signal, wherein the second scanning range is smaller than the first scanning range;

determining the target phase group based on the second scan range.

7. The method of claim 6, wherein the phase control parameters further include a second step amount, the second step amount being less than the first step amount;

said determining said target phase group based on said second scan range comprises:

taking any one of the plurality of phase shifters as a third phase shifter;

within the second scanning range, the wireless signal transceiver adjusts the phase of the third phase shifter by the second step size to obtain a third phase group of the plurality of phase shifters; the power divider generates a third complete machine signal according to the result of phase shifting of the wireless signals received by the plurality of antennas by the plurality of phase shifters based on the second phase group; repeatedly executing the processes until the second scanning range is traversed to obtain a second complete machine signal group;

taking a fourth phase shifter of the plurality of phase shifters as a new third phase shifter, and repeatedly executing the above processes until the plurality of phase shifters are traversed to obtain a plurality of second complete set signal groups, wherein the fourth phase shifter is different from the third phase shifter;

determining a plurality of third signal strengths based on the plurality of second complete machine signal groups, the third signal strengths corresponding to the third complete machine signals one to one;

determining the target phase group based on the plurality of third signal strengths.

8. The method of claim 1, wherein before the wireless signal transceiver adjusts the phase of at least one phase shifter based on a phase control parameter, the method further comprises:

initializing the plurality of phase shifters based on a preset initial phase.

9. The method of any one of claims 1 to 8, further comprising:

detecting whether the signal intensity of the current complete machine signal received by the wireless signal transceiver is smaller than a third intensity threshold value or not in the transceiving mode;

under the condition that the signal intensity of a second current complete machine signal is not smaller than the third intensity threshold value, the radio frequency transceiving circuit keeps working in the transceiving mode;

and under the condition that the signal intensity of the second current complete machine signal is smaller than the third intensity threshold value, the radio frequency transceiving circuit is switched from the transceiving mode to the receiving mode.

10. The method of any one of claims 1 to 8, further comprising:

detecting whether a phase adjustment period is reached in the transceiving mode;

under the condition that the phase adjustment period is not reached, the radio frequency transceiving circuit keeps working in the transceiving mode;

and when the phase adjustment period is reached, the radio frequency transceiving circuit is switched from the transceiving mode to the receiving mode.