CN112886990B - Interference elimination method and device and electronic equipment - Google Patents
Interference elimination method and device and electronic equipment Download PDFInfo
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- CN112886990B CN112886990B CN202110088833.8A CN202110088833A CN112886990B CN 112886990 B CN112886990 B CN 112886990B CN 202110088833 A CN202110088833 A CN 202110088833A CN 112886990 B CN112886990 B CN 112886990B
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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
- H04B1/54—Circuits using the same frequency for two directions of communication
- H04B1/56—Circuits using the same frequency for two directions of communication with provision for simultaneous communication in two directions
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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
- H04B1/401—Circuits for selecting or indicating operating mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
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Abstract
The application discloses an interference elimination method, an interference elimination device and electronic equipment, and belongs to the technical field of communication. The method comprises the following steps: performing signaling connection with a base station through a first working mode; under the condition that the terminal establishes signaling connection with the base station, acquiring a beam included angle between an uplink beam and a downlink beam; if the included angle of the wave beams is smaller than or equal to the interference elimination critical angle, the working mode is kept as a first working mode; and if the beam included angle is larger than the interference elimination critical angle, switching the working mode to a second working mode. And determining whether interference exists according to the relation between the beam included angle and the interference elimination critical angle, keeping the first working mode when the interference exists, and switching to the second working mode when the interference does not exist, so that the time domain resources can be fully utilized to improve the speed, and the data packet loss rate can be reduced.
Description
Technical Field
The present application belongs to the field of communication technologies, and in particular, to an interference cancellation method, an interference cancellation device, and an electronic device.
Background
With the progress of science and technology, the communication requirements of users are not satisfied at present, and 5G mobile terminals are produced. The 5G mobile terminal has the characteristics of larger radio frequency working bandwidth, more occupied spectrum resources, higher working frequency band, high-speed transmission and low time delay. The 5G mobile terminal can be compatible with the original 4G mobile terminal, and uses more spectrum resources, so that the deficient spectrum resources are more and more caught. In order to improve the utilization rate of the frequency domain and the time domain, the realization of the same-frequency simultaneous full-duplex mobile terminal becomes possible based on the multi-antenna technology and the beam forming technology.
When the terminal works in a millimeter wave same-frequency simultaneous full-duplex state, because the millimeter wave main lobe and the side lobe exist simultaneously, the transmitting frequency and the receiving frequency are the same, and the transmitting frequency and the receiving frequency exist simultaneously, the situation that the transmitting signal interferes the receiving signal is more likely to occur, the received data is lost, and even the communication function of the terminal is failed in serious cases, so that the user experience is influenced.
Disclosure of Invention
The embodiment of the application provides an interference elimination method, an interference elimination device and electronic equipment, and can solve the problems that when a terminal works in a millimeter wave same-frequency simultaneous full-duplex state, due to the fact that a millimeter wave main lobe and a millimeter wave side lobe exist simultaneously, the transmitting frequency and the receiving frequency are the same, the transmitting frequency and the receiving frequency exist simultaneously, a transmitting signal interferes with a receiving signal, received data is lost, and even a communication function of the terminal is failed in the prior art.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an interference cancellation method is provided, which is applied to a terminal, and includes:
performing signaling connection with a base station through a first working mode;
under the condition that the terminal establishes signaling connection with the base station, acquiring a beam included angle between an uplink beam and a downlink beam;
if the included angle of the wave beams is smaller than or equal to the interference elimination critical angle, the working mode is kept as a first working mode;
and if the beam included angle is larger than the interference elimination critical angle, switching the working mode to a second working mode.
In a second aspect, an interference cancellation apparatus is provided, including:
the connection module is used for carrying out signaling connection with the base station through a first working mode;
a first obtaining module, configured to obtain a beam included angle between an uplink beam and a downlink beam when a terminal establishes a signaling connection with the base station;
a first determining module, configured to keep the working mode as a first working mode if the beam included angle is smaller than or equal to an interference cancellation critical angle;
and the first switching module is used for switching the working mode into a second working mode if the beam included angle is larger than the interference elimination critical angle.
In a third aspect, an electronic device is provided, which comprises a processor, a memory, and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the method according to the first aspect.
In a fourth aspect, a readable storage medium is provided, on which a program or instructions are stored, which when executed by a processor, implement the steps of the method according to the first aspect.
In a fifth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the first aspect.
In the embodiment of the present application, a signaling connection is first performed with a base station through a first working mode, and under the condition that a signaling connection is established between a terminal and the base station, a beam angle between an uplink beam and a downlink beam is determined, if the beam angle is less than or equal to an interference cancellation critical angle, the working mode is maintained as the first working mode, and if the beam angle is greater than the interference cancellation critical angle, the working mode is switched to a second working mode. According to the relation between the beam included angle between the uplink beam and the downlink beam and the interference elimination critical angle, whether interference exists is determined, the first working mode is kept when the interference exists, and the second working mode is switched to when the interference does not exist, so that time domain resources can be fully utilized, the speed can be increased, the data packet loss rate can be reduced, and the customer experience can be 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 flowchart of an interference cancellation method according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating a correspondence relationship between angles provided by an embodiment of the present application;
fig. 3 is a flow chart of another interference cancellation method provided by an embodiment of the present application;
fig. 4 is a schematic structural diagram of an interference cancellation apparatus according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of another interference cancellation apparatus provided in an embodiment of the present application;
FIG. 6 is a schematic diagram of an electronic device provided by an embodiment of the present application;
fig. 7 is a hardware structure diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The interference cancellation method, the interference cancellation apparatus, and the electronic device provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Fig. 1 is a flowchart of an interference cancellation method according to an embodiment of the present application. The interference cancellation method is applied to a terminal, and may include: contents shown in step S101 to step S104.
In step S101, a signaling connection is made with a base station via a first operation mode.
That is, the terminal may make a signaling connection with the base station through the first operation mode.
The first working mode can be a time-sharing same-frequency half-duplex working mode.
In this embodiment of the present application, the number of the base stations may be one, or may be multiple, that is, the terminal device may communicate with one base station, or may communicate with at least two base stations, specifically based on actual situations.
In step S102, a beam angle between an uplink beam and a downlink beam is determined when the terminal establishes a signaling connection with the base station.
After the terminal establishes signaling connection with the base station, the positions of the directions of the uplink beam and the downlink beam can be measured, and meanwhile, the relative position between the main lobe and the side lobe can also be determined. Specifically, the beam angle between the uplink beam and the downlink beam is the angle between the uplink beam main lobe and the downlink beam main lobe.
In step S103, if the beam angle is smaller than or equal to the interference cancellation critical angle, the operation mode is maintained as the first operation mode.
That is, the interference of the current terminal is large, and the first operating mode may be continuously maintained, that is, the first operating mode is an anti-interference operating mode, for example, a time division and frequency sharing full duplex operating mode.
In this embodiment of the present application, the interference cancellation critical angle may be determined by calculation, simulation, or actual test according to the type of the base station and the type of the terminal, and specifically, this embodiment is not limited. According to the relation between the determined beam angle and the beam angle threshold, the state of the terminal, namely the interference degree can be determined, and the terminal is switched to a corresponding working mode.
In step S104, if the beam angle is greater than the interference cancellation critical angle, the operating mode is switched to the second operating mode.
That is, the terminal is in less interference, and the work mode can be switched into the work mode that can utilize the time domain resource, that is, the work mode is switched from the first work mode to the second work mode to make the data communication of terminal be in better state, make full use of time domain resource, improve speed, promote user experience.
The second working mode may be a same-frequency simultaneous duplex working mode.
In the embodiment of the present application, a signaling connection is first performed with a base station through a first working mode, a beam angle between an uplink beam and a downlink beam is obtained under the condition that a signaling connection is established between a terminal and the base station, and finally, if the beam angle is smaller than or equal to an interference cancellation critical angle, the working mode is maintained as the first working mode, and if the beam angle is larger than the interference cancellation critical angle, the working mode is switched to a second working mode. According to the relation between the beam included angle between the uplink beam and the downlink beam and the interference elimination critical angle, whether interference exists is determined, the first working mode is kept when the interference exists, and the second working mode is switched to when the interference does not exist, so that time domain resources can be fully utilized, the speed can be increased, the data packet loss rate can be reduced, and the customer experience can be improved.
In one possible embodiment of the present application, acquiring a beam angle between an uplink beam and a downlink beam may include the following steps.
Acquiring a direction angle of an uplink wave beam and a direction angle of a downlink wave beam, wherein the direction angle of the uplink wave beam is an included angle between the uplink wave beam and a preset direction, and the direction angle of the downlink wave beam is an included angle between the downlink wave beam and the preset direction; and determining a beam angle according to the direction angle of the uplink beam and the direction angle of the downlink beam.
That is, the beam angle may be determined by measuring the azimuth of the uplink beam and the azimuth of the downlink beam, and then calculating the difference between the two angles.
Specifically, as shown in fig. 2, after two antennas of the terminal are connected to the corresponding base station, a direction angle α of the uplink beam and a direction angle β of the downlink beam may be determined, and a beam angle θ may be determined through calculation.
The beam included angle threshold delta, namely the interference elimination critical angle, can be determined through theoretical calculation, simulation or actual test and other modes, so as to determine the working mode of the terminal, namely when theta is smaller than or equal to delta, the interference degree does not meet the requirement, namely the interference degree is larger, the working mode can be kept in the first working mode, so that the data packet loss rate is reduced, and the user experience is improved; when theta is larger than delta, the interference degree can meet the requirement, namely the interference degree is smaller, and the working mode can be switched to the second working mode, so that time domain resources are fully utilized, and the speed is improved.
Specifically, under the condition that signaling connection exists between the terminal and the base station, the above process can be repeated so as to determine a better working mode of the terminal, so that the terminal can work in a simultaneous same-frequency full duplex working mode without interference, so as to fully utilize time domain resources and improve the speed; when interference exists, the system works in a time-sharing and frequency-sharing full duplex working mode, the data packet loss rate is reduced, and the user experience is improved.
In addition to determining the working mode of the terminal by adopting the above manner of obtaining the beam angle between the uplink beam and the downlink beam, the working mode of the terminal can be determined according to the level and the signal quality. The details are as follows.
In one possible embodiment of the present application, as shown in fig. 3, the interference cancellation method may further include: contents shown in step S301 to step S305.
In step S301, in the case where the operation mode of the terminal is the first operation mode, a first reception level value and a first signal quality value are acquired.
That is, after the terminal is connected to the base station, in the case that the operating mode of the terminal is the first operating mode, that is, the time-sharing same-frequency half-duplex operating mode, the first reception level value and the first signal quality value in this state are obtained.
In step S302, the first operation mode is switched to the second operation mode within a preset time.
That is, within a predetermined time period, the first working mode is switched to the second working mode, that is, the time-sharing same-frequency half-duplex working mode can be switched to the same-frequency simultaneous full-duplex working mode.
In step S303, the second reception level value and the second signal quality value are acquired.
And after the first working mode is switched to a second working mode, namely the time-sharing same-frequency half-duplex working mode can be switched to a same-frequency simultaneous full-duplex working mode, acquiring a second receiving level value and a second signal quality value under the state.
In step S304, if the first reception level value is greater than the second reception level value and the first signal quality value is greater than the second signal quality value, the operation mode of the terminal is determined as the first operation mode.
In step S305, if the first reception level value is less than the second reception level value and the first signal quality value is less than the second signal quality value, the operation mode of the terminal is determined as the second operation mode.
That is, the receiving level value and the signal quality value in two working modes are judged, and the working mode with high receiving level value and good signal quality is taken as the current working mode; and the data packet loss rate is reduced in a time-sharing and frequency-sharing full duplex state, and the user experience is improved.
In a specific embodiment of the present application, the first operating mode is a time-sharing same-frequency half-duplex operating mode, and the second operating mode is a simultaneous same-frequency full-duplex operating mode.
It should be noted that, in the interference cancellation method provided in the embodiment of the present application, the execution main body may be an interference cancellation device, or a control module in the interference cancellation device for executing the method of interference cancellation. In the embodiments of the present application, a method for performing interference cancellation by an interference cancellation apparatus is taken as an example, and the interference cancellation apparatus provided in the embodiments of the present application is described.
As shown in fig. 4, an interference cancellation apparatus is further provided in the embodiments of the present application. The apparatus may include: a connection module 401, a first acquisition module 402, a first determination module 403 and a first switching module 404.
Specifically, the connection module 401 is configured to perform signaling connection with a base station through a first working mode; the first obtaining module 402 is configured to obtain a beam included angle between an uplink beam and a downlink beam when the terminal establishes a signaling connection with the base station; the first determining module 403 is configured to keep the working mode as the first working mode if the beam angle is smaller than or equal to the interference cancellation critical angle; the first switching module 404 is configured to switch the working mode to a second working mode if the beam angle is greater than the interference cancellation critical angle.
In this embodiment of the application, first, the connection module 401 performs signaling connection with the base station through a first working mode, and when the terminal establishes signaling connection with the base station, the first obtaining module 402 obtains a beam included angle between an uplink beam and a downlink beam, and finally, if the beam included angle is smaller than or equal to an interference cancellation critical angle, the first determining module 403 keeps the working mode in the first working mode, and if the beam included angle is larger than the interference cancellation critical angle, the first switching module 404 switches the working mode into a second working mode, keeps the first working mode when there is interference, and switches to the second working mode when there is no interference, which can fully utilize time domain resources to improve a rate, reduce a data packet loss rate, and improve a user experience.
Optionally, the first obtaining module 402 may include: an acquisition unit and a determination unit.
Specifically, the obtaining unit is configured to determine a direction angle of an uplink beam and a direction angle of a downlink beam, where the direction angle of the uplink beam is an included angle between the uplink beam and a preset direction, and the direction angle of the downlink beam is an included angle between the downlink beam and the preset direction; the determining unit is configured to determine a beam angle according to the direction angle of the uplink beam and the direction angle of the downlink beam.
Optionally, as shown in fig. 5, the interference cancellation apparatus may further include: a second obtaining module 501, a second switching module 502, a third obtaining module 503, a second determining module 504 and a third determining module 505.
Specifically, the second obtaining module 501 is configured to obtain a first receiving level value and a first signal quality value when the operating mode of the terminal is the first operating mode; the second switching module 502 is configured to switch the first working mode to a second working mode within a preset time; the third obtaining module 503 is configured to obtain a second reception level value and a second signal quality value; the second determining module 504 is configured to determine the operating mode of the terminal as the first operating mode if the first reception level value is greater than the second reception level value and the first signal quality value is greater than the second signal quality value; a third determining module 505, configured to determine the operation mode of the terminal as the second operation mode if the first reception level value is less than the second reception level value and the first signal quality value is less than the second signal quality value.
Optionally, the first operating mode is a time-sharing same-frequency half-duplex operating mode, and the second operating mode is a simultaneous same-frequency full-duplex operating mode.
The interference cancellation apparatus in the embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal. The device can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a Network Attached Storage (NAS), a personal computer (personal computer, PC), a Television (TV), a teller machine, a self-service machine, and the like, and the embodiments of the present application are not limited in particular.
The interference cancellation apparatus in the embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.
The interference cancellation device provided in the embodiment of the present application can implement each process implemented by the method embodiments in fig. 1 to fig. 3, and is not described here again to avoid repetition.
Optionally, as shown in fig. 6, an electronic device 600 is further provided in this embodiment of the present application, and includes a processor 601, a memory 602, and a program or an instruction stored in the memory 602 and executable on the processor 601, where the program or the instruction is executed by the processor 601 to implement each process of the foregoing interference cancellation method embodiment, and can achieve the same technical effect, and no further description is provided here to avoid repetition.
It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and the non-mobile electronic devices described above.
Figure 7 is a schematic diagram of a hardware structure of an electronic device implementing various embodiments of the present application,
the electronic device 100 includes, but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and the like.
Those skilled in the art will appreciate that the electronic device 100 may further comprise a power source (e.g., a battery) for supplying power to various components, and the power source may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The electronic device structure shown in fig. 7 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is omitted here.
Wherein, the processor 110 may be configured to: carrying out signaling connection with a base station through a first working mode; under the condition that a terminal establishes signaling connection with a base station, acquiring a beam included angle between an uplink beam and a downlink beam; if the included angle of the wave beams is smaller than or equal to the interference elimination critical angle, the working mode is kept as a first working mode; and if the beam included angle is larger than the interference elimination critical angle, switching the working mode into a second working mode.
In the embodiment of the present application, a signaling connection is first performed with a base station through a first working mode, and under the condition that a signaling connection is established between an end and the base station, a beam included angle between an uplink beam and a downlink beam is obtained, and finally, if the beam included angle is smaller than or equal to an interference cancellation critical angle, the working mode is maintained as the first working mode, and if the beam included angle is larger than the interference cancellation critical angle, the working mode is switched to a second working mode. According to the relation between the beam included angle and the interference elimination critical angle, whether interference exists is determined, the first working mode is kept when the interference exists, and the second working mode is switched to when the interference does not exist, so that time domain resources can be fully utilized to improve the speed, the data packet loss rate can be reduced, and the customer experience is improved.
The processor 110 may be further configured to: acquiring a direction angle of an uplink wave beam and a direction angle of a downlink wave beam, wherein the direction angle of the uplink wave beam is an included angle between the uplink wave beam and a preset direction, and the direction angle of the downlink wave beam is an included angle between the downlink wave beam and the preset direction; and determining a beam angle according to the direction angle of the uplink beam and the direction angle of the downlink beam.
The processor 110 may be further configured to: under the condition that the working mode of the terminal is a first working mode, acquiring a first receiving level value and a first signal quality value; switching the first working mode into a second working mode within a preset time; obtaining a second receive level value and a second signal quality value; if the first receiving level value is greater than the second receiving level value and the first signal quality value is greater than the second signal quality value, determining the working mode of the terminal as a first working mode; and if the first receiving level value is smaller than the second receiving level value and the first signal quality value is smaller than the second signal quality value, determining the working mode of the terminal as a second working mode.
It should be understood that, in the embodiment of the present application, the input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the Graphics Processing Unit 1041 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also referred to as a touch screen. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein. The memory 109 may be used to store software programs as well as various data including, but not limited to, application programs and an operating system. The processor 110 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the foregoing interference cancellation method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each process of the above-mentioned interference cancellation method embodiment, and can achieve the same technical effect, and is not described here again to avoid repetition.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.
It should be noted that, in this document, 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 identified by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An interference cancellation method applied to a terminal, the method comprising:
performing signaling connection with a base station through a first working mode;
under the condition that the terminal establishes signaling connection with the base station, acquiring a beam included angle between an uplink beam and a downlink beam;
if the included angle of the wave beams is smaller than or equal to the interference elimination critical angle, the working mode is kept as a first working mode;
if the beam included angle is larger than the interference elimination critical angle, switching the working mode to a second working mode;
the first working mode is an anti-interference mode, and the second working mode is a simultaneous same-frequency full-duplex working mode.
2. The method of claim 1, wherein the obtaining the beam angle between the uplink beam and the downlink beam comprises:
acquiring a direction angle of the uplink wave beam and a direction angle of the downlink wave beam, wherein the direction angle of the uplink wave beam is an included angle between the uplink wave beam and a preset direction, and the direction angle of the downlink wave beam is an included angle between the downlink wave beam and the preset direction;
and determining the beam included angle according to the direction angle of the uplink beam and the direction angle of the downlink beam.
3. The method of claim 1, further comprising:
under the condition that the working mode of the terminal is a first working mode, acquiring a first receiving level value and a first signal quality value;
switching the first working mode into a second working mode within a preset time;
obtaining a second receive level value and a second signal quality value;
if the first receiving level value is greater than the second receiving level value and the first signal quality value is greater than the second signal quality value, the working mode of the terminal is kept to be the first working mode;
and if the first receiving level value is smaller than the second receiving level value and the first signal quality value is smaller than the second signal quality value, switching the working mode of the terminal into a second working mode.
4. The method of claim 3, wherein the first operating mode is a time-division same-frequency half-duplex operating mode.
5. An interference cancellation apparatus, comprising:
the connection module is used for carrying out signaling connection with the base station through a first working mode;
a first obtaining module, configured to obtain a beam included angle between an uplink beam and a downlink beam when a terminal establishes a signaling connection with the base station;
a first determining module, configured to keep the working mode as a first working mode if the beam included angle is smaller than or equal to an interference cancellation critical angle;
the first switching module is used for switching the working mode to a second working mode if the included angle of the wave beam is larger than the interference elimination critical angle;
the first working mode is an anti-interference mode, and the second working mode is a simultaneous same-frequency full-duplex working mode.
6. The apparatus of claim 5, wherein the first obtaining module comprises:
an obtaining unit, configured to determine a direction angle of the uplink beam and a direction angle of the downlink beam, where the direction angle of the uplink beam is an included angle between the uplink beam and a preset direction, and the direction angle of the downlink beam is an included angle between the downlink beam and the preset direction;
and the determining unit is used for determining the beam included angle according to the direction angle of the uplink beam and the direction angle of the downlink beam.
7. The apparatus of claim 5, further comprising:
a second obtaining module, configured to obtain a first reception level value and a first signal quality value when a working mode of the terminal is a first working mode;
the second switching module is used for switching the first working mode into a second working mode within preset time;
a third obtaining module, configured to obtain a second reception level value and a second signal quality value;
a second determining module, configured to determine the operating mode of the terminal as the first operating mode if the first reception level value is greater than the second reception level value and the first signal quality value is greater than the second signal quality value;
and the third determining module is used for determining the working mode of the terminal as the second working mode if the first receiving level value is less than the second receiving level value and the first signal quality value is less than the second signal quality value.
8. The apparatus of claim 7, wherein the first operating mode is a time-division same-frequency half-duplex operating mode.
9. An electronic device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the interference cancellation method of any one of claims 1-4.
10. A readable storage medium, characterized in that the readable storage medium stores thereon a program or instructions which, when executed by a processor, implement the steps of the interference cancellation method according to any one of claims 1-4.
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| CN108736944B (en) * | 2017-04-19 | 2021-07-27 | 上海朗帛通信技术有限公司 | Method and device for multi-antenna transmission in base station and user equipment |
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