CN111641042B - System and method for optimizing spacing degree between antennas and mobile terminal - Google Patents
System and method for optimizing spacing degree between antennas and mobile terminal Download PDFInfo
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- H—ELECTRICITY
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- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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Abstract
本发明公开了一种天线间隔离度优化系统、方法及移动终端，包括基带芯片、射频芯片、调制解调器、至少两个天线以及与所述至少两个天线数量对应的调谐器件；所述至少两个天线被布置为两两相邻；所述至少两个天线中的每个天线与所述基带芯片之间连接有一个所述调谐器件；所述射频芯片、调制解调器分别与所述基带芯片连接；本发明提供的一种天线间隔离度优化系统、方法及移动终端，通过调谐器件对产生干扰的干扰频段进行优化调谐，可在有限的空间内提升天线之间的隔离度，改善两两相邻的天线之间同频干扰的问题，使的两两相邻的天线都能工作在最优性能的频率上进行通信传输，提高了天线接收信号的能力。
The invention discloses an isolation degree optimization system, method and mobile terminal between antennas, comprising a baseband chip, a radio frequency chip, a modem, at least two antennas, and a tuning device corresponding to the number of the at least two antennas; the at least two The antennas are arranged adjacent to each other; one of the tuning devices is connected between each of the at least two antennas and the baseband chip; the radio frequency chip and the modem are respectively connected to the baseband chip; this The invention provides an isolation degree optimization system, method and mobile terminal between antennas. The interference frequency band that generates interference is optimized and tuned by a tuning device, so that the isolation degree between antennas can be improved in a limited space, and the two adjacent antennas can be improved. The problem of co-frequency interference between the antennas enables the two adjacent antennas to work on the frequency with the best performance for communication and transmission, which improves the ability of the antennas to receive signals.
Description
Technical Field
The embodiment of the invention relates to the technical field of wireless communication, in particular to a system and a method for optimizing the distance between antennas and a mobile terminal.
Background
With the development of communication technology and the improvement of consumer demand, the design of mobile terminals, such as mobile phones, notebook computers, etc., shows the trend of multi-frequency, miniaturization, compactness and lightness, so that the frequency band and number of the antennas on the same mobile terminal become more and more, the distance between the antennas also becomes closer and closer, and the problem of insufficient isolation between adjacent antennas is caused. This not only reduces the efficiency of the antennas, but also causes mutual interference between different antennas, thereby reducing the quality of the communication network of the mobile terminal.
At present, in order to ensure the normal operation of the antennas and avoid mutual interference, the conventional method for improving the isolation degree generally increases the distance between the antennas, but this results in the size of the whole mobile terminal becoming larger, which obviously does not meet the requirements of miniaturization, compactness and lightness and thinness proposed by consumers.
Therefore, how to increase the isolation between the antennas in the limited space of the mobile terminal is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention provides a system and a method for optimizing the distance between antennas and a mobile terminal, which aim to overcome the defects of the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
in a first aspect, an embodiment of the present invention provides an inter-antenna distance optimization system, including a baseband chip, a radio frequency chip, a modem, at least two antennas, and tuning devices corresponding to the at least two antennas in number;
the at least two antennas are arranged adjacent to each other two by two;
one tuning device is connected between each antenna of the at least two antennas and the baseband chip;
the radio frequency chip and the modem are respectively connected with the baseband chip;
the modem is used for defining the interference frequency band as an operating frequency band when the interference frequency band generating interference is a non-operating frequency band;
the baseband chip is used for controlling the radio frequency chip and the tuning device;
the radio frequency chip is used for controlling the antenna to which the interference frequency band belongs to work in at least two working frequency bands including the interference frequency band under the control of the baseband chip;
the tuning device is used for switching the current state to a target state under the control of the baseband chip so as to optimally tune the interference frequency band, so that the antenna to which the interference frequency band belongs finally works in other working frequency bands except the interference frequency band.
Furthermore, in the antenna-to-antenna isolation optimization system, the tuning device is a tuning switch;
the tuning switch is connected to a signal feed point or a ground feed point of the antenna.
Furthermore, in the inter-antenna isolation optimization system, the tuning device is an adjustable capacitance switch;
the adjustable capacitance switch is connected with a signal feed point or a ground feed point of the antenna.
Further, in the inter-antenna isolation optimization system, the modem is built in the baseband chip.
In a second aspect, an embodiment of the present invention provides an inter-antenna distance optimization method, which is performed by using the inter-antenna distance optimization system according to the first aspect, and the method includes:
when any one of the at least two antennas has an interference frequency band, the baseband chip switches the current state of the tuning device corresponding to the antenna with the interference frequency band to a target state;
and in the target state, the tuning device optimally tunes the interference frequency band, so that the antenna with the interference frequency band works in other working frequency bands except the interference frequency band.
Further, in the method for optimizing isolation between antennas, when an interference frequency band exists in any one of the at least two antennas, the step of switching, by the baseband chip, a current state of the tuning device corresponding to the antenna in which the interference frequency band exists to a target state includes:
when any one of the at least two antennas has an interference frequency band, the radio frequency chip judges whether the interference frequency band is a working frequency band;
if the interference frequency band is a working frequency band, the baseband chip switches the current state of the tuning device corresponding to the antenna with the interference frequency band to a target state;
if the interference frequency band is a non-working frequency band, the modem firstly defines the interference frequency band as a working frequency band, and then executes the step that the baseband chip switches the current state of the tuning device corresponding to the antenna with the interference frequency band to a target state.
Further, in the method for optimizing the isolation between antennas, the step of switching the current state of the tuning device corresponding to the antenna having the interference frequency band to the target state by the baseband chip includes:
the baseband chip acquires a preset mapping table;
the baseband chip searches a target state capable of optimally tuning or completely filtering and eliminating the interference frequency band from the preset mapping table;
and the baseband chip switches the current state of the tuning device corresponding to the antenna with the interference frequency band to the target state.
In a third aspect, an embodiment of the present invention provides a mobile terminal, including the inter-antenna distance optimization system according to the first aspect.
According to the system and the method for optimizing the distance between the antennas and the mobile terminal, provided by the embodiment of the invention, the interference frequency band generating interference is optimally tuned through the tuning device, so that the distance between the antennas can be improved in a limited space, the problem of same-frequency interference between every two adjacent antennas is solved, the two adjacent antennas can work at a frequency with optimal performance for communication and transmission, and the signal receiving capacity of the antennas is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a functional block diagram of an inter-antenna distance optimization system according to an embodiment of the present invention;
fig. 2a is a schematic diagram of an a antenna before performing interference frequency band optimization tuning in the embodiment of the present invention;
fig. 2B is a schematic diagram of a B antenna before performing interference frequency band optimization tuning in the embodiment of the present invention;
fig. 3 is a schematic diagram of an antenna a performing interference frequency band optimized tuning in the embodiment of the present invention;
fig. 4 is a schematic diagram of an interference frequency band optimized tuning performed by a B antenna in the embodiment of the present invention;
FIG. 5 is a simplified schematic diagram of a multiple antenna layout;
FIG. 6 is a simplified schematic diagram of a multiple antenna layout with the tuning device connected to the ground feed point of the antenna;
FIG. 7 is a simplified schematic diagram of a multiple antenna layout with a tuning device connected to the signal feed point of the antenna;
fig. 8 is a schematic flowchart of a method for optimizing an antenna spacing distance according to an embodiment of the present invention;
fig. 9 is a flowchart illustrating a method for optimizing an antenna spacing distance according to an embodiment of the present invention.
Reference numerals:
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, 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 invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example one
Fig. 1 is a functional block diagram of an antenna spacing optimization system according to an embodiment of the present invention. As shown in fig. 1, an embodiment of the present invention provides an antenna spacing optimization system, which performs optimal tuning on an interference frequency band generating interference by controlling a tuning device, so as to solve the problem of co-channel interference between two adjacent antennas.
The system for optimizing the isolation between the antennas comprises a baseband chip 10, a radio frequency chip 20, a modem 30, at least two antennas 40 and tuning devices 50 corresponding to the number of the at least two antennas 40;
the at least two antennas 40 are arranged adjacent to each other two by two;
one tuning device 50 is connected between each antenna 40 of the at least two antennas 40 and the baseband chip 10;
the radio frequency chip 20 and the modem 30 are respectively connected with the baseband chip 10;
the Modem 30(Modem) is configured to define an interference frequency band as an operating frequency band when the interference frequency band generating interference is a non-operating frequency band;
the baseband chip 10 is used for controlling the radio frequency chip 20 and the tuning device 50;
the radio frequency chip 20 is configured to control, under the control of the baseband chip 10, the antenna 40 to which the interference frequency band belongs to operate in at least two operating frequency bands including the interference frequency band;
the tuning device 50 is configured to switch the current state to a target state under the control of the baseband chip 10, so as to optimally tune the interference frequency band, so that the antenna 40 to which the interference frequency band belongs finally operates in other operating frequency bands except the interference frequency band.
It should be noted that, in the existing antenna design scheme, in order to increase the bandwidth of the antenna, a tuning device 50 such as a tuning switch is added at a signal feeding point, a ground feeding point, or other positions of the antenna to implement frequency switching of different frequency bands, so that the radiation and reception efficiency of the antenna is optimal within a required operating frequency range. On the basis of the invention, the tuning device 50 is applied to the isolation and mutual interference problem between every two antennas by further mining and innovating the antenna switch switching principle, namely, the redundant switch link on the tuning device 50 is used for filtering the working frequency band with the isolation and mutual interference problem, so that the mutual influence between every two antennas is weakened or thoroughly solved, and the additional hardware investment is not required.
The present invention requires that the tuning device 50 should ensure the margin above at least one switch link on the basis of not affecting the antenna performance of itself, and then configure a group of impedance matching circuits composed of LC that can filter interference frequency bands on the margin switch link. When the tuning device 50 is switched to the redundant switch link, the tuning device 50 is considered to be switched to the target state.
The isolation and mutual interference between any two antennas can be reduced or thoroughly solved by tuning optimization in the mode provided by the invention. In specific implementation, for example, the a01 antenna may operate in the f1 frequency band and the f2 frequency band, and the a02 antenna may operate in the f3 frequency band and the f4 frequency band, as shown in fig. 2a and fig. 2 b. When the f2 frequency band of the a01 antenna affects the f3 frequency band or the f4 frequency band of the adjacent a02 antenna, the a01 antenna performs optimized tuning on the frequency point of the f2 frequency band generated by the antenna through the corresponding tuning device 50 (i.e., the frequency performance of the f2 frequency band is modulated to be the worst or is completely filtered), so that the isolation and mutual interference problems generated on the a02 antenna are reduced or completely eliminated by the f2 frequency band. At this time, the a01 antenna apparently operates in the f2 frequency band and the f1 frequency band, but after physical hardware filtering by the tuning device 50, the a01 antenna actually operates in a state that it is not at the frequency point of the f2 frequency band, that is, it operates only in the f1 frequency band, while the a02 antenna is not affected, which can be referred to fig. 3.
Similarly, when the f3 frequency band of the a02 antenna affects the f1 frequency band or the f2 frequency band of the adjacent a01 antenna, the a02 antenna performs optimized tuning on the frequency point of the f3 frequency band generated by the antenna through the corresponding tuning device 50 (i.e., the frequency performance of the f3 frequency band is modulated to be the worst or is completely filtered), so that the isolation and mutual interference problems generated on the a01 antenna are reduced or completely eliminated by the f3 frequency band. At this time, the B antenna is seen to operate in the f3 frequency band and the f4 frequency band, but after physical hardware filtering by the tuning device 50, the a02 antenna actually operates in a state that the a02 antenna is not at the frequency point of the f3 frequency band, that is, only operates in the f4 frequency band, while the a01 antenna is not affected, which can be referred to fig. 4.
Preferably, the tuning device 50 may be a tuning switch, a tunable capacitance switch, or other similar devices. Specifically, the tuning device 50 is connected to the signal feed point of the antenna 40, the ground feed point of the antenna 40, or other locations of the antenna 40 (other feed points), depending on the tuning device 50 type, and different tuning device 50 types are used at different feed points, but all solve the isolation and crosstalk problems. Referring to fig. 5 to 7, fig. 5 is a simple schematic diagram of a multi-antenna layout (taking eight antennas a01 to a08 as an example); FIG. 6 is a simplified schematic diagram of a multiple antenna layout with the tuning device connected to the ground feed point of the antenna; fig. 7 is a simplified schematic diagram of a multiple antenna layout with a tuning device connected to the signal feed point of the antenna. The tuning device in fig. 5 to 7 is an example of one of the tuning switches, which is only illustrated, and the specific type selection needs to be determined according to actual situations and needs.
Preferably, the modem 30 is built in the baseband chip 10.
According to the antenna spacing optimization system provided by the embodiment of the invention, the interference frequency band generating interference is optimally tuned through the tuning device, so that the isolation between the antennas can be improved in a limited space, the problem of same-frequency interference between every two adjacent antennas is solved, the two adjacent antennas can work at a frequency with optimal performance for communication and transmission, and the signal receiving capacity of the antennas is improved.
Example two
As shown in fig. 8, a second embodiment of the present invention provides an antenna spacing distance optimization method, which is executed by the antenna spacing distance optimization system provided in the second embodiment of the present invention, and specifically includes the following steps:
s201, when any one of the at least two antennas has an interference frequency band, the baseband chip switches the current state of the tuning device corresponding to the antenna with the interference frequency band to a target state.
It should be noted that, regardless of whether one or several antennas have an interference frequency band, the processing logic is the same, that is, the baseband chip switches the current state of the tuning device corresponding to the antenna having the interference frequency band to the target state. The target state refers to one switch link of the tuning device, a group of impedance matching circuits which can filter interference frequency bands and are composed of LC are configured on the switch link, and when the antenna needs to filter and eliminate the interference frequency bands, the antenna is only required to be switched to the switch link.
S202, in the target state, the tuning device optimally tunes the interference frequency band, so that the antenna with the interference frequency band works in other working frequency bands except the interference frequency band.
According to the method for optimizing the distance between the antennas, provided by the embodiment of the invention, the interference frequency band generating interference is optimally tuned through the tuning device, so that the isolation between the antennas can be improved in a limited space, the problem of co-channel interference between every two adjacent antennas is solved, the two adjacent antennas can work on the frequency with the optimal performance for communication and transmission, and the signal receiving capacity of the antennas is improved.
EXAMPLE III
As shown in fig. 9, the method for optimizing the distance between antennas according to the third embodiment of the present invention is further optimized, based on the technical solution provided in the second embodiment, in step S201, "when an interference frequency band exists in any one of the at least two antennas, the baseband chip switches the current state of the tuning device corresponding to the antenna in which the interference frequency band exists to the target state. Explanations of the same or corresponding terms as those of the above embodiments are omitted. Namely:
when any one of the at least two antennas has an interference frequency band, the radio frequency chip judges whether the interference frequency band is a working frequency band;
if the interference frequency band is a working frequency band, the baseband chip switches the current state of the tuning device corresponding to the antenna with the interference frequency band to a target state;
if the interference frequency band is a non-working frequency band, the modem firstly defines the interference frequency band as a working frequency band, and then executes the step that the baseband chip switches the current state of the tuning device corresponding to the antenna with the interference frequency band to a target state.
Based on the above optimization, as shown in fig. 9, the method for optimizing the distance between antennas provided in this embodiment may include the following steps:
s301, when an interference frequency band exists in any one of the at least two antennas, the radio frequency chip judges whether the interference frequency band is a working frequency band; if yes, step S303 is directly performed, otherwise, step S302 is performed first, and step S303 is performed.
S302, the modem firstly defines the interference frequency band as a working frequency band.
It should be noted that, if the interference frequency band is a non-operating frequency band, not only interference is brought to adjacent antennas, but also the antenna to which the interference frequency band belongs is affected. Specifically, for the antenna, the non-operating frequency band is an invalid frequency band, and when the antenna is transmitting and receiving signals, the interference frequency band may affect the quality and energy loss of the currently transmitted and received signals of the antenna. Therefore, the interference band needs to be eliminated for either the antenna or the adjacent antenna.
In addition, when the interference frequency band is not within the frequency bandwidth of the antenna itself, since the modem will not drive the switching state of the tuning device naturally, the interference frequency band in which the antenna does not work itself needs to be defined as its own working frequency band from software, and then the subsequent optimized tuning operation can be performed.
And S303, the baseband chip switches the current state of the tuning device corresponding to the antenna with the interference frequency band to a target state.
Specifically, the step S303 further includes:
(1) the baseband chip acquires a preset mapping table;
(2) the baseband chip searches a target state capable of optimally tuning or completely filtering and eliminating the interference frequency band from the preset mapping table;
(3) and the baseband chip switches the current state of the tuning device corresponding to the antenna with the interference frequency band to the target state.
It should be noted that which switch link of the antenna is recorded on the preset mapping table may perform filtering on the interference frequency band, so that matching may be performed quickly by means of searching. Of course, the skilled person may also modify the switching chain to match different interference frequency bands that need to be filtered.
S304, in the target state, the tuning device optimally tunes the interference frequency band, so that the antenna with the interference frequency band works in other working frequency bands except the interference frequency band.
According to the method for optimizing the distance between the antennas, provided by the embodiment of the invention, the interference frequency band generating interference is optimally tuned through the tuning device, so that the isolation between the antennas can be improved in a limited space, the problem of co-channel interference between every two adjacent antennas is solved, the two adjacent antennas can work at a frequency with optimal performance for communication and transmission, and the signal receiving capacity of the antennas is improved.
Example four
A fourth embodiment of the present invention provides a mobile terminal, including the inter-antenna distance optimization system described in any of the above embodiments.
According to the mobile terminal provided by the embodiment of the invention, the interference frequency band generating interference is optimally tuned through the tuning device, the isolation degree between the antennas can be improved in a limited space, the problem of same-frequency interference between every two adjacent antennas is solved, the two adjacent antennas can work at the frequency with the optimal performance for communication and transmission, and the signal receiving capability of the antennas is improved.
The foregoing description of the embodiments has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same elements or features may also vary in many respects. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
Example embodiments are provided so that this disclosure will be thorough and will fully convey the scope to those skilled in the art. Numerous details are set forth, such as examples of specific parts, devices, and methods, in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In certain example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.
The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises" and "comprising" are intended to be inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed and illustrated, unless explicitly indicated as an order of performance. It should also be understood that additional or alternative steps may be employed.
When an element or layer is referred to as being "on" … … "," engaged with "… …", "connected to" or "coupled to" another element or layer, it can be directly on, engaged with, connected to or coupled to the other element or layer, or intervening elements or layers may also be present. In contrast, when an element or layer is referred to as being "directly on … …," "directly engaged with … …," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship of elements should be interpreted in a similar manner (e.g., "between … …" and "directly between … …", "adjacent" and "directly adjacent", etc.). As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region or section from another element, component, region or section. Unless clearly indicated by the context, use of terms such as the terms "first," "second," and other numerical values herein does not imply a sequence or order. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
Spatially relative terms, such as "inner," "outer," "below," "… …," "lower," "above," "upper," and the like, may be used herein for ease of description to describe a relationship between one element or feature and one or more other elements or features as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below … …" can encompass both an orientation of facing upward and downward. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted.
Claims (8)
1. The system for optimizing the distance between the antennas is characterized by comprising a baseband chip, a radio frequency chip, a modem, at least two antennas and tuning devices corresponding to the number of the at least two antennas;
the at least two antennas are arranged adjacent to each other two by two;
one tuning device is connected between each antenna of the at least two antennas and the baseband chip;
the radio frequency chip and the modem are respectively connected with the baseband chip;
the modem is used for defining the interference frequency band as an operating frequency band when the interference frequency band generating interference is a non-operating frequency band;
the baseband chip is used for controlling the radio frequency chip and the tuning device;
the radio frequency chip is used for controlling the antenna to which the interference frequency band belongs to work in at least two working frequency bands including the interference frequency band under the control of the baseband chip;
the tuning device is used for switching the current state to a target state under the control of the baseband chip so as to modulate the frequency performance of the interference frequency band to be the worst or filter the frequency performance completely, and therefore the antenna to which the interference frequency band belongs finally works in other working frequency bands except the interference frequency band.
2. The system according to claim 1, wherein the tuning device is a tuning switch;
the tuning switch is connected to a signal feed point or a ground feed point of the antenna.
3. The system of claim 1, wherein the tuning device is a tunable capacitive switch;
the adjustable capacitance switch is connected with a signal feed point or a ground feed point of the antenna.
4. The system according to claim 1, wherein the modem is built in the baseband chip.
5. An inter-antenna distance optimization method performed by the inter-antenna distance optimization system according to any one of claims 1 to 4, the method comprising:
when any one of the at least two antennas has an interference frequency band, the baseband chip switches the current state of the tuning device corresponding to the antenna with the interference frequency band to a target state;
in the target state, the tuning device modulates the frequency performance of the interference frequency band to be worst or completely filters the frequency performance of the interference frequency band, so that the antenna with the interference frequency band works in other working frequency bands except the interference frequency band.
6. The method according to claim 5, wherein the step of the baseband chip switching the current state of the tuning device corresponding to the antenna having the interference frequency band to a target state when the interference frequency band exists in any one of the at least two antennas comprises:
when any one of the at least two antennas has an interference frequency band, the radio frequency chip judges whether the interference frequency band is a working frequency band;
if the interference frequency band is a working frequency band, the baseband chip switches the current state of the tuning device corresponding to the antenna with the interference frequency band to a target state;
if the interference frequency band is a non-working frequency band, the modem firstly defines the interference frequency band as a working frequency band, and then executes the step that the baseband chip switches the current state of the tuning device corresponding to the antenna with the interference frequency band to a target state.
7. The method according to claim 6, wherein the step of the baseband chip switching the current state of the tuning device corresponding to the antenna having the interference frequency band to a target state comprises:
the baseband chip acquires a preset mapping table;
the baseband chip searches a target state capable of optimally tuning or completely filtering and eliminating the interference frequency band from the preset mapping table;
and the baseband chip switches the current state of the tuning device corresponding to the antenna with the interference frequency band to the target state.
8. A mobile terminal characterized by comprising the inter-antenna distance optimization system according to any one of claims 1 to 4.
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| CN202010572897.0A CN111641042B (en) | 2020-06-22 | 2020-06-22 | System and method for optimizing spacing degree between antennas and mobile terminal |
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