CN111180902A - MIMO system, method for distinguishing signals by MIMO system and mobile terminal thereof - Google Patents
MIMO system, method for distinguishing signals by MIMO system and mobile terminal thereof Download PDFInfo
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- CN111180902A CN111180902A CN202010091131.0A CN202010091131A CN111180902A CN 111180902 A CN111180902 A CN 111180902A CN 202010091131 A CN202010091131 A CN 202010091131A CN 111180902 A CN111180902 A CN 111180902A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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Abstract
The embodiment of the application discloses a Multiple Input Multiple Output (MIMO) system, a method for distinguishing signals by the MIMO system and a mobile terminal thereof. The MIMO system provided in the embodiments of the present application includes a main set antenna, at least one diversity antenna, a demodulator and at least one time delay element; the diversity antenna is connected with the time delay element; the time delay element is connected with the demodulator, and the mobile terminal delays the time of transmitting the diversity signal to the demodulator by using the time delay element, so that the main set signal and the diversity signal received by the main set antenna can be obviously distinguished, the signal demodulation is convenient, and the throughput of the MIMO system is improved.
Description
Technical Field
The present application relates to the field of mobile communication technologies, and in particular, to a MIMO system, a method for distinguishing signals by the MIMO system, and a mobile terminal thereof.
Background
With the advancement of science and technology and the development of society, wireless communication technology is more mature, the population of mobile terminals is more and more, mobile communication puts higher requirements on the wireless communication system in terms of transmission rate, performance, system service capacity and the like, a MIMO (Multiple Input Multiple Output) system is generated thereby, as shown in fig. 1, the MIMO system includes a transmitting end 10 and a receiving end 20, the transmitting end 10 includes a transmitting end 101 and a transmitting end 102, the receiving end 20 includes a receiving end 201 and a receiving end 202, the transmitting end 101 and the transmitting end 102 simultaneously transmit two paths of signals X1 and X2, the receiving end 201 and the receiving end 202 simultaneously receive signals X1 and X2, four signal propagation paths are provided between the transmitting end 101 and the transmitting end 102 and between the receiving end 201 and the receiving end 202, channel coefficients are respectively 1, -1, and doubling the MIMO throughput of the system, after the two signals X1 and X2 reach the receiving end 201 and the receiving end 202 through spatial transmission, the amplitude, phase, time delay and the like of the signals are changed greatly, and the receiving end 20 can distinguish the two signals X1 and X2 obviously.
Disclosure of Invention
The embodiment of the application provides an MIMO system, a signal distinguishing method of the MIMO system and a mobile terminal thereof, wherein a time delay element is used for delaying the time of transmitting a diversity signal received by a diversity antenna to a demodulator, so that the mobile terminal can obviously distinguish a main set signal and the diversity signal received by a main set antenna, and the throughput of the MIMO system is improved.
An embodiment of the present application provides a MIMO system, including:
a main set antenna, at least one diversity antenna, a demodulator and at least one time delay element;
the diversity antenna is connected with the time delay element;
the delay element is connected to the demodulator.
Optionally, in some embodiments of the present application, the time delay element includes at least one capacitor and/or at least one inductor connected in series and/or in parallel.
Optionally, in some embodiments of the present application, the demodulator includes a modem and a transceiver.
Optionally, in some embodiments of the present application, the main set antenna is configured to receive and transmit a main set signal, the diversity antenna is configured to receive a diversity signal, and the time delay element is configured to delay a time of transmission of the diversity signal to the demodulator.
Optionally, in some embodiments of the present application, the antenna array is connected to a delay element, and the delay element includes at least one capacitor and/or at least one inductor connected in series and/or in parallel, and the delay element is configured to delay a time of transmission of a signal received by the antenna array to the demodulator.
Optionally, in some embodiments of the present application, the number of capacitances and/or inductances included in the time delay elements of the main set is smaller or larger than the number of capacitances and/or inductances included in the time delay elements.
Correspondingly, an embodiment of the present application further provides a MIMO system, including:
a main set antenna, at least one diversity antenna, demodulator and a time delay element;
the diversity antenna is connected with the demodulator, the main set antenna is connected with the time delay element, and the time delay element is used for delaying the time of transmitting a main set signal received by the main set antenna to the demodulator;
the delay element is connected to the demodulator.
Similarly, an embodiment of the present application further provides a method for distinguishing signals in a MIMO system, including:
transmitting the diversity signal to a time delay element, and transmitting the main diversity signal to a demodulator;
delaying the time of transmission of the diversity signal to the demodulator with the delay element;
transmitting the diversity signal from the time delay element to the demodulator.
Similarly, an embodiment of the present application further provides a method for distinguishing signals in a MIMO system, including:
transmitting the main set signal received by the main set antenna to a time delay element, and transmitting the diversity signal to a demodulator;
delaying the time of transmission of the main set signal to the demodulator with the delay element;
transmitting the main set signal from the time delay element to the demodulator.
In addition, the embodiment of the application also provides a mobile terminal device, which comprises any one of the components of the MIMO system.
The embodiment of the application provides a MIMO system, a method for distinguishing signals by the MIMO system and a mobile terminal thereof, wherein a time delay element is arranged between a diversity antenna and a demodulator in the MIMO system of the mobile terminal and is used for delaying the time for transmitting diversity signals received by the diversity antenna to the demodulator.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of a MIMO channel signal transmission scenario provided in an embodiment of the present application;
fig. 2 is a schematic diagram of a spatial transmission scenario of a MIMO channel signal provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a first implementation manner of a MIMO system according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a second implementation manner of a MIMO system according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a third implementation manner of a MIMO system according to an embodiment of the present application;
fig. 6 is a flowchart of a method for distinguishing signals in a MIMO system according to an embodiment of the present disclosure;
fig. 7 is a flowchart of a method for distinguishing signals in a second MIMO system according to an embodiment of the present disclosure.
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. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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.
The embodiment of the application provides a Multiple Input Multiple Output (MIMO) system, a method for distinguishing signals by the MIMO system and a mobile terminal thereof. The system can be integrated in a terminal, and the terminal can be a mobile phone, a tablet computer, a notebook computer, an intelligent watch and other devices.
For example, as shown in fig. 2, in the MIMO channel, the base station simultaneously transmits two or more signals, the two or more signals are transmitted in the space and pass through obstacles such as buildings, forests and trees, and then received by the mobile terminal, some MIMO channel models have poor performance, so that the two or more signals received by the mobile terminal through the space transmission receiving end have no obvious difference, which is not beneficial to signal demodulation and affects the throughput of the MIMO system, therefore, when the two or more signals transmitted by the base station are received by the main set antenna and the diversity antenna of the mobile terminal, in order to better distinguish the main set signal received by the main set antenna from the diversity signal received by the diversity antenna, at least one delay element is connected between the diversity antenna and the demodulator for delaying the time when the diversity signal is transmitted to the demodulator, the main set antenna transmits the received main set signal to the demodulator, the diversity antenna transmits the received signal to the delay element, then the time delay element transmits the diversity signal to the demodulator, and the time delay element delays the time for transmitting the diversity signal to the demodulator, so that the diversity signal and the main set signal are obviously distinguished.
The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 3, a MIMO system is provided in an embodiment of the present application.
The MIMO system comprises diversity antenna 301, main set antenna 302, delay element 303, demodulator 304, diversity feeder 305 and main set feeder 306, the diversity antenna 301 is connected to the delay element 303, the delay element 303 is connected to the demodulator 304, and the main set antenna 302 is connected to the demodulator 304.
In some embodiments, the delay element 303 is connected to the demodulator 304 by a diversity feeder 305, the main set antenna 302 is connected to the demodulator 304 by a main set feeder 306, the diversity feeder 305 is configured to transmit delayed diversity signals to the demodulator 304, the main set feeder 306 is configured to transmit main set signals to the demodulator 304, the diversity antennas are configured to receive diversity signals transmitted by a base station, the main set antenna is configured to receive main set signals transmitted by a base station and transmit main set signals, the delay element 303 is configured to delay a time of transmission of the diversity signals to the demodulator 304, and the demodulator 304 is configured to demodulate the received main set signals and the diversity signals.
In some embodiments, the delay element 303 is composed of at least one capacitor in series, it should be noted that the structure of the delay element 303 described in this embodiment of the present application is not limited thereto, and other manners may also be adopted, for example, the delay element 303 is composed of at least one inductor in series, or the delay element 303 is composed of at least one capacitor in parallel, or the delay element 303 is composed of at least one capacitor in series and in parallel, or the delay element 303 is composed of at least one inductor in series and in parallel, or the delay element 303 is composed of at least one capacitor in series and at least one inductor in series, or the delay element 303 is composed of at least one capacitor in parallel and at least one inductor in parallel, or the delay element 303 is composed of at least one capacitor in series and at least one inductor in parallel.
In some embodiments, demodulator 304 includes a modem and a transceiver. In the 4G network, the mobile terminal includes a main set antenna and a diversity antenna, and in the 5G network, the mobile terminal includes a main set antenna and 4 diversity antennas, the main set antenna is directly connected to the demodulator, and a delay element may be connected between one diversity antenna and the demodulator, that is, in the mobile terminal of the 5G network, the 4 diversity antennas are respectively connected to the 4 delay elements, so that diversity signals received by the 4 diversity antennas are clearly distinguished from main set signals received by the main set antenna.
In some embodiments, in a 4G network, the mobile terminal includes a main set antenna and a diversity antenna, and in a 5G network, the mobile terminal includes a main set antenna and 4 diversity antennas, the main set antenna is directly connected to the demodulator, the 4 diversity antennas may be connected to a time delay element in common, or two adjacent diversity antennas of the 4 diversity antennas may be connected to a time delay element in common, that is, 2 time delay elements are set in total, or 3 diversity antennas may be connected to a time delay element in common, and the remaining diversity antenna is connected to a time delay element, that is, 2 time delay elements are set in total.
Referring to fig. 4, another MIMO system is provided in the present application.
The MIMO system comprises a diversity antenna 401, a main set antenna 402, a time delay element 403, a demodulator 404, a diversity feeder 405, a main set feeder 406 and a main set time delay element 407, wherein the diversity antenna 401 is connected with the time delay element 403, the time delay element 403 is connected with the demodulator 404, the main set antenna 402 is connected with the main set time delay element 407, and the main set time delay element 407 is connected with the demodulator.
In some embodiments, delay element 403 is coupled to demodulator 404 using diversity feeder 405, delay element 403 is used to delay the time of transmission of diversity signals received by diversity antenna 401 to demodulator 404, main set delay element 406 is coupled to demodulator 404 using main set feeder 406, main set delay element 407 is used to delay the time of transmission of main set signals received by main set antenna 402 to demodulator 404, main set antenna 402 is used to receive and transmit main set signals, diversity antenna 401 is used to receive diversity signals, and demodulator 404 is used to demodulate the received main set signals and diversity signals.
In some embodiments, the delay element 403 is composed of at least one capacitor in series, it should be noted that the structure of the delay element 403 in the embodiments of the present application is not limited thereto, and other manners may also be adopted, for example, the delay element 403 is composed of at least one inductor in series, or the delay element 403 is composed of at least one capacitor in parallel, or the delay element 403 is composed of at least one capacitor in series and in parallel, or the delay element 403 is composed of at least one inductor in series and in parallel, or the delay element 403 is composed of at least one capacitor in series and at least one inductor in series, or the delay element 403 is composed of at least one capacitor in parallel and at least one inductor in parallel, or the delay element 403 is composed of at least one capacitor in series and at least one inductor in series and in parallel.
In some embodiments, the delay elements 407 of the main set are formed by at least one capacitor in series, the number of capacitors included in the delay elements 407 of the main set is less than or greater than the number of capacitors included in the delay elements 403, it should be noted that the structure of the delay elements 407 of the main set according to the embodiments of the present application is not limited thereto, and other manners may also be adopted, for example, the delay elements 407 of the main set are formed by at least one inductor in series, the number of inductors included in the delay elements 407 of the main set is less than or greater than the number of inductors included in the delay elements 403, or the delay elements 407 of the main set are formed by at least one capacitor in parallel, the number of capacitors included in the delay elements 407 of the main set is less than or greater than the number of inductors included in the delay elements 403, or the delay elements 407 of the main set are formed by at least one inductor in parallel, the delay elements, or the delay element 407 of the master set is composed of at least one capacitor connected in series and in parallel, the number of capacitors included in the delay element 407 of the master set is less than or greater than the number of capacitors included in the delay element 403, or the delay element 407 of the master set is composed of at least one inductor connected in series and in parallel, the number of inductors included in the delay element 407 of the master set is less than or greater than the number of inductors and capacitors included in the delay element 403, or the delay element 407 of the master set is composed of at least one capacitor connected in parallel with at least one inductor, the number of inductors and capacitors included in the delay element 407 of the master set is less than or greater than the number of inductors and capacitors included in the delay element 403, or the delay element 407 of the master set is composed of at least one capacitor connected in series and in parallel with at least one inductor, the number of inductances and capacitances included in the delay elements 407 of the main set is smaller or larger than the number of inductances and capacitances included in the delay elements 403.
In some embodiments, demodulator 404 includes a modem and a radio transceiver. In the 4G network, the mobile terminal includes a main set antenna and a diversity antenna, and in the 5G network, the mobile terminal includes a main set antenna and 4 diversity antennas, the main set antenna is connected to the main set delay element 407, and a delay element may be connected between a diversity antenna and the demodulator, that is, in the mobile terminal of the 5G network, the 4 diversity antennas are respectively connected to the 4 delay elements, so that diversity signals received by the 4 diversity antennas are clearly distinguished from main set signals received by the main set antenna.
In some embodiments, in a 4G network, the mobile terminal includes a main set antenna and a diversity antenna, and in a 5G network, the mobile terminal includes a main set antenna and 4 diversity antennas, the main set antenna is directly connected to the demodulator, the 4 diversity antennas may be connected to a time delay element in common, or two adjacent diversity antennas of the 4 diversity antennas may be connected to a time delay element in common, that is, 2 time delay elements are set in total, or 3 diversity antennas may be connected to a time delay element in common, and the remaining diversity antenna is connected to a time delay element, that is, 2 time delay elements are set in total.
Referring to fig. 5, another MIMO system is provided in the present application.
The MIMO system comprises diversity antennas 501, main set antennas 502, delay elements 503, demodulators 504, main set feeders 505 and diversity feeders 506, the diversity antennas 501 being connected to the demodulators 504, the main set antennas 502 being connected to the delay elements 503, the delay elements 503 being connected to the demodulators 504.
In some embodiments, delay element 503 is coupled to demodulator 504 using a main set feeder 506, delay element 503 is configured to delay the time at which a main set signal received by main set antenna 502 is transmitted to demodulator 504, main set antenna 502 is configured to receive and transmit the main set signal, diversity antenna 501 is configured to receive a diversity signal, diversity signal is transmitted to the demodulator using a diversity feeder 505, and demodulator 504 is configured to demodulate the received main set signal and the diversity signal.
In some embodiments, the delay element 503 is composed of at least one capacitor in series, it should be noted that the structure of the delay element 503 according to the embodiments of the present application is not limited thereto, and other manners may also be adopted, for example, the delay element 503 is composed of at least one inductor in series, or the delay element 503 is composed of at least one capacitor in parallel, or the delay element 503 is composed of at least one capacitor in series and in parallel, or the delay element 503 is composed of at least one inductor in series and in parallel, or the delay element 503 is composed of at least one capacitor in series and at least one inductor in parallel, or the delay element 503 is composed of at least one capacitor in parallel and at least one inductor in series and in parallel.
In some embodiments, demodulator 504 includes a modem and a radio transceiver. In the 4G network, the mobile terminal comprises a main set antenna and a diversity antenna, in the 5G network, the mobile terminal comprises a main set antenna and 4 diversity antennas, the 4 diversity antennas are directly connected with the demodulator, the 4 diversity antennas can be converged into a diversity feeder to be connected with the demodulator, namely, diversity signals received by the 4 diversity antennas are transmitted to the demodulator through the diversity feeder, a time delay element can be connected between the main set antenna and the demodulator, namely, in the mobile terminal of the 5G network, the mobile terminal can obviously distinguish the diversity signals received by the 4 diversity antennas from the main set signals received by the main set antenna.
In some embodiments, in a 4G network, the mobile terminal includes a main set antenna and a diversity antenna, in a 5G network, the mobile terminal includes a main set antenna and 4 diversity antennas, the 4 diversity antennas are directly connected to the demodulator, the 4 diversity antennas may be combined into a diversity feeder to be connected to the demodulator, two diversity antennas adjacent to the 4 diversity antennas may be combined into a diversity feeder to be connected to the demodulator, that is, 2 diversity feeders are required in total, 3 diversity antennas may be combined into a diversity feeder to be connected to the demodulator, the remaining diversity antennas are directly connected to the demodulator, that is, 2 diversity feeders are provided in total, and a delay element is connected between the main set antenna and the demodulator.
The present embodiment will be described from the perspective of an MIMO system, which may be specifically integrated in a terminal device, where the terminal device may include a laptop, a tablet, a smart phone, a smart watch, and the like.
A method for a MIMO system to distinguish signals, comprising: transmitting the diversity signal to a time delay element, and transmitting the main diversity signal to a demodulator; delaying the time of transmission of the diversity signal to the demodulator with the delay element; transmitting the diversity signal from the time delay element to the demodulator.
As shown in fig. 6, a specific flow of the method for distinguishing signals in the MIMO system is as follows:
For example, in the MIMO channel, the base station transmits two or more signals to the mobile terminal at the same time, and the mobile terminal receives the two or more signals transmitted by the base station by using a main set antenna and at least one diversity antenna, so that the two or more signals received by the mobile terminal through a spatial transmission receiving end have no significant difference.
Optionally, in the 4G network, the mobile terminal includes a main set antenna and a diversity antenna, in the 5G network, the mobile terminal includes a main set antenna and four diversity antennas, the main set antenna is directly connected to the demodulator, the main set signal is directly transmitted to the demodulator, the diversity antenna is connected to a delay element, the diversity signal is transmitted to the demodulator through the delay element, in the mobile terminal of the 5G network, the four diversity antennas are respectively connected to the four delay elements, and the diversity signals received by the four diversity antennas are transmitted to the delay element through the four diversity feeders, so that the diversity signals received by the four diversity antennas are clearly distinguished from the main set signal received by the main set antenna.
Optionally, in the 4G network, the mobile terminal includes a main set antenna and a diversity antenna, in the 5G network, the mobile terminal includes a main set antenna and four diversity antennas, the main set signal is directly transmitted to the demodulator through the main set feeder, the four diversity antennas may be connected together to a time delay element, the diversity signal received by the four diversity antennas is transmitted to a time delay element through a diversity feeder, or two adjacent diversity antennas of the four diversity antennas may be connected together to a time delay element, i.e. two time delay elements are provided in total, the diversity signal received by two adjacent diversity antennas of the four diversity antennas is transmitted to two time delay elements through two diversity feeders, or three diversity antennas may be connected together to a time delay element, the remaining one diversity antenna is connected to a time delay element, i.e. two time delay elements are provided in total, diversity signals received by three of the four diversity antennas are transmitted to the time delay element through one diversity feeder, and diversity signals received by the remaining diversity antenna are transmitted to the time delay element through the other diversity feeder.
Optionally, the main set antenna may also be connected to the main set delay element, and the main set signal received by the main set antenna is transmitted to the main set delay element.
For example, the time delay element receives the diversity signal transmitted by the diversity antenna, and delays the time of transmitting the diversity signal to the demodulator by using capacitance and inductance.
Optionally, the master set signal is transmitted to a master set delay element, and the master set delay element delays the time when the master set signal is transmitted to the demodulator.
For example, after the diversity signal is transmitted to the delay element, the delay element transmits the diversity signal to the demodulator, and the main set signal is transmitted to the demodulator by the main set antenna, so that the time for transmitting the diversity signal to the demodulator is later than the time for transmitting the main set signal to the demodulator, thereby enabling the demodulator to clearly distinguish the diversity signal from the main set signal.
Optionally, after the main set signal is transmitted to the main set delay element, the main set delay element transmits the main set signal to the demodulator, the main set signal is transmitted to the demodulator through the main set delay element, and the arrival time is earlier or later than the time of transmitting the diversity signal to the demodulator, so that the demodulator can obviously distinguish the diversity signal from the main set signal.
The embodiment of the present application will be described in terms of a method for distinguishing signals in a MIMO system, where the method for distinguishing signals in the MIMO system includes: transmitting the main set signal received by the main set antenna to a time delay element, and transmitting the diversity signal to a demodulator; delaying the time of transmission of the main set signal to the demodulator with the delay element; the main set signal is transmitted from the time delay element to the demodulator.
As shown in fig. 7, a specific flow of the method for distinguishing signals in the MIMO system is as follows:
For example, in the MIMO channel, the base station transmits two or more signals to the mobile terminal at the same time, and the mobile terminal receives the two or more signals transmitted by the base station by using a main set antenna and at least one diversity antenna, so that the two or more signals received by the mobile terminal through a spatial transmission receiving end have no obvious difference.
Optionally, in the 4G network, the mobile terminal includes one main set antenna and one diversity antenna, in the 5G network, the mobile terminal comprises a main diversity antenna and four diversity antennas, the four diversity antennas can be converged into a diversity feeder to be connected with the demodulator, the diversity signals received by the four diversity antennas are transmitted to the demodulator through the diversity feeder, or two adjacent diversity antennas of the four diversity antennas are converged into a diversity feeder to be connected with the demodulator, that is, two diversity feeders are needed in total, that is, diversity signals received by two diversity antennas adjacent to the four diversity antennas are transmitted to the demodulator through the two diversity antennas, or three diversity antennas can be converged into one diversity feeder to be connected with the demodulator, the other diversity antenna is directly connected with the demodulator, i.e. the diversity signals received by three of the four diversity antennas are transmitted to the demodulator via a diversity feeder.
Optionally, the master set antenna may receive a master set signal transmitted by the base station, and may also send the master set signal to the base station, however, the master set antenna may only transmit the received master set signal transmitted by the base station to the delay element, so that the delay element delays the time for transmitting the master set signal received by the master set antenna to the demodulator, and the master set signal sent to the base station is not transmitted to the delay element, thereby avoiding the delay element from affecting the master set signal sent by the master set antenna to the base station.
And step 702, delaying the time for transmitting the main set signal to the demodulator by using the time delay element.
For example, the time delay element receives the main set signal transmitted by the main set antenna, and delays the time of transmitting the main set signal to the demodulator by using capacitance and inductance.
For example, after the transmission of the main set signal to the delay element, the delay element transmits the main set signal to the demodulator, and the diversity signal is transmitted to the demodulator by the diversity antenna, so that the time for transmitting the diversity signal to the demodulator is earlier than the time for transmitting the main set signal to the demodulator, thereby enabling the demodulator to clearly distinguish the diversity signal from the main set signal.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The MIMO system, the method for distinguishing signals of the MIMO system, and the mobile terminal thereof provided by the embodiments of the present application are introduced in detail above, and a specific example is applied in the present application to explain the principle and the implementation of the present application, and the description of the above embodiments is only used to help understanding the technical scheme and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A MIMO system, comprising:
a main set antenna, at least one diversity antenna, a demodulator and at least one time delay element;
the diversity antenna is connected with the time delay element;
the delay element is connected to the demodulator.
2. The MIMO system of claim 1, wherein the delay element comprises at least one capacitor and/or at least one inductor connected in series and/or in parallel.
3. The MIMO system of claim 1, wherein the demodulator comprises a modem and a transceiver.
4. The MIMO system of claim 1, wherein the main set antennas are configured to receive and transmit main set signals, wherein the diversity antennas are configured to receive diversity signals, and wherein the delay element is configured to delay transmission of the diversity signals to the demodulator.
5. The MIMO system of claim 1, wherein the antenna of the main set is connected to a time delay element of the main set, the time delay element of the main set comprising at least one capacitor and/or at least one inductor connected in series and/or in parallel, the time delay element of the main set being configured to delay a time for transmitting a signal of the main set received by the antenna of the main set to the demodulator.
6. The MIMO system of claim 5, wherein the number of capacitances and/or inductances included in the delay elements is less than or greater than the number of capacitances and/or inductances included in the delay elements.
7. A MIMO system, comprising:
a main set antenna, at least one diversity antenna, demodulator and a time delay element;
the diversity antenna is connected with the demodulator, the main set antenna is connected with the time delay element, and the time delay element is used for delaying the time of transmitting a main set signal received by the main set antenna to the demodulator;
the delay element is connected to the demodulator.
8. A method for distinguishing signals in a MIMO system, comprising:
transmitting the diversity signal to a time delay element, and transmitting the main diversity signal to a demodulator;
delaying the time of transmission of the diversity signal to the demodulator with the delay element;
transmitting the diversity signal from the time delay element to the demodulator.
9. A method for distinguishing signals in a MIMO system, comprising:
transmitting the main set signal received by the main set antenna to a time delay element, and transmitting the diversity signal to a demodulator;
delaying the time of transmission of the main set signal to the demodulator with the delay element;
transmitting the main set signal from the time delay element to the demodulator.
10. A mobile terminal device, characterized in that it comprises a MIMO system according to any one of claims 1 to 7.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050043840A (en) * | 2005-04-18 | 2005-05-11 | 홍동호 | Bandwidth efficient transmission of space diversity signal at cdma repeater |
| EP1142158B1 (en) * | 1999-10-19 | 2007-05-02 | Nokia Corporation | Optimising link quality by space and time interleaving |
| CN101237632A (en) * | 2008-03-03 | 2008-08-06 | 中兴通讯股份有限公司 | Signal downlink transmitting method and device |
| CN101447817A (en) * | 2007-11-26 | 2009-06-03 | 芯通科技（成都）有限公司 | Device and method for diversity reception and transmission of TD-SCDMA mobile communication systems |
| CN103281039A (en) * | 2013-04-15 | 2013-09-04 | 北京大学 | E-type power amplifier for controlling difference between discharge branches in delayed mode |
| CN104124954A (en) * | 2013-04-25 | 2014-10-29 | 财团法人工业技术研究院 | Level conversion circuit and operation method thereof |
-
2020
- 2020-02-13 CN CN202010091131.0A patent/CN111180902A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1142158B1 (en) * | 1999-10-19 | 2007-05-02 | Nokia Corporation | Optimising link quality by space and time interleaving |
| KR20050043840A (en) * | 2005-04-18 | 2005-05-11 | 홍동호 | Bandwidth efficient transmission of space diversity signal at cdma repeater |
| CN101447817A (en) * | 2007-11-26 | 2009-06-03 | 芯通科技（成都）有限公司 | Device and method for diversity reception and transmission of TD-SCDMA mobile communication systems |
| CN101237632A (en) * | 2008-03-03 | 2008-08-06 | 中兴通讯股份有限公司 | Signal downlink transmitting method and device |
| CN103281039A (en) * | 2013-04-15 | 2013-09-04 | 北京大学 | E-type power amplifier for controlling difference between discharge branches in delayed mode |
| CN104124954A (en) * | 2013-04-25 | 2014-10-29 | 财团法人工业技术研究院 | Level conversion circuit and operation method thereof |
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