CN111313940B - MIMO system and method for distinguishing signals of MIMO system - Google Patents
MIMO system and method for distinguishing signals of MIMO system Download PDFInfo
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- CN111313940B CN111313940B CN202010087919.4A CN202010087919A CN111313940B CN 111313940 B CN111313940 B CN 111313940B CN 202010087919 A CN202010087919 A CN 202010087919A CN 111313940 B CN111313940 B CN 111313940B
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- 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
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Abstract
The embodiment of the application discloses a MIMO system and a method for distinguishing signals of the MIMO system. The MIMO system provided in the embodiment of the present application includes a main set antenna, at least one diversity antenna, a demodulator and at least one redundant code mixing element; the main set antenna is connected with the demodulator, and the diversity antenna is connected with the redundant code mixing element; the redundant code mixing element is connected with the demodulator, and the mobile terminal mixes the generated redundant code with the diversity signal received by the diversity antenna by using the redundant code mixing unit, 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 communications technologies, and in particular, to a MIMO system and a method for distinguishing signals in the MIMO system.
Background
With the advancement of technology and the development of society, wireless communication technology is more mature, the population of mobile terminals is more and more, and mobile communication puts higher requirements on the wireless communication system in terms of transmission rate, performance, system service capacity, etc., 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, so that the MIMO throughput of the system is doubled, 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 a MIMO system and a method for distinguishing signals of the MIMO system, and the generated redundant codes are mixed with diversity signals received by diversity antennas by using a redundant code mixing unit, so that a mobile terminal can obviously distinguish main set signals and diversity signals received by the main set antennas, 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, demodulator and at least one redundant code mixing element;
the main set antenna is connected with the demodulator, and the diversity antenna is connected with the redundant code mixing element;
the redundant code mixing element is connected with the demodulator.
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 redundancy code mixing element is configured to mix the diversity signal and the generated redundancy code to generate a redundancy diversity signal.
Optionally, in some embodiments of the present application, the redundancy code mixing element is connected to the demodulator, and includes:
the redundant code mixing element is connected with the demodulator by a diversity feeder and a redundant feeder, the diversity feeder is used for transmitting redundant diversity signals, and the redundant feeder is used for transmitting redundant codes.
Optionally, in some embodiments of the present application, the demodulator is configured to reject the redundant code in the redundant diversity signal.
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 redundant code mixing element;
the main set antenna is connected with the redundant code mixing element, the diversity antenna is connected with the demodulator, and the redundant code mixing element is used for mixing the main set signal received by the main set antenna and the generated redundant code;
the redundant code mixing element is connected with 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 redundant code mixing element and transmitting the main diversity signal to a demodulator;
the redundant code mixing element generates a redundant code;
and mixing the diversity signal and the redundant code to generate a redundant diversity signal.
Optionally, in some embodiments of the present application, the mixing the diversity signal and the redundancy code to generate a redundant diversity signal includes:
the redundancy code mixing element transmits the redundancy code and the redundancy diversity signal to a demodulator;
the demodulator strips out the redundant codes in the redundant diversity signal.
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 redundant code mixing element, and transmitting the diversity signal to a demodulator;
the redundant code mixing element generates a redundant code;
and mixing the main set signal and the redundant code to generate a redundant main set signal.
Optionally, in some embodiments of the present application, the mixing the primary set signal and the redundant code to generate a redundant primary set signal includes:
the redundant code mixing element transmits the redundant code and the redundant master set signal to a demodulator;
the demodulator strips out the redundant codes in the redundant primary set signal.
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 and a method for distinguishing signals of the MIMO system, a redundant code mixing unit is arranged between a diversity antenna and a demodulator in the MIMO system of a mobile terminal and is used for mixing the diversity signals received by the diversity antenna with the generated redundant codes to generate redundant diversity signals, the redundant code mixing element is connected with the demodulator by a diversity feeder and a redundant feeder, the diversity feeder is used for transmitting the redundant diversity signals, the redundant feeder is used for transmitting the redundant codes, in the method for distinguishing signals of the MIMO system, the mobile terminal transmits the diversity signals to the redundant code mixing element, transmits the main diversity signals to the demodulator, the redundant code mixing element generates the redundant codes, mixes the diversity signals and the redundant codes to generate the redundant diversity signals, then transmits the redundant diversity signals to the demodulator by using the diversity feeder, transmits the redundant codes to the demodulator by using the redundant feeder, the demodulator eliminates redundant codes in the redundant diversity signals and removes the influence on the diversity signals, so that the mobile terminal can obviously distinguish the main set signals and the diversity signals received by the main set antenna, and the throughput of the MIMO system is improved.
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 flowchart of a method for distinguishing signals in a MIMO system according to an embodiment of the present disclosure;
fig. 6 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 MIMO system and a method for distinguishing signals of the MIMO system. 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 throughput of the MIMO system, therefore, when the main set antenna and the diversity antenna of the mobile terminal receive the two or more signals transmitted by the base station, in order to better distinguish the main set signal received by the main set antenna and the diversity signal received by the diversity antenna, a redundant code mixing unit is connected between the diversity antenna and the demodulator for mixing the diversity signal received by the diversity antenna and the generated redundant code to generate a redundant diversity signal, the mobile terminal transmits the diversity signal to the redundant code mixing element, the main diversity signal is transmitted to a demodulator, a redundant code mixing element generates a redundant code, the diversity signal and the redundant code are mixed to generate a redundant diversity signal, and then the redundant diversity signal is transmitted to the demodulator by utilizing a diversity feeder line, so that the purpose of signal distinguishing is achieved.
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 antennas 301, main set antennas 302, redundant code mixing elements 303, diversity feeders 304, main set feeders 305, redundant feeders 306 and demodulators 307, wherein the main set antennas 302 are connected to the demodulators 307, the diversity antennas 301 are connected to the redundant code mixing elements 303, and the redundant code mixing elements 303 are connected to the demodulators 307.
In some embodiments, the redundancy code mixing element 303 is connected to the demodulator 307 by a diversity feeder 304 and a redundancy feeder 306, the diversity feeder 304 is used for transmitting a redundancy diversity signal, the redundancy feeder 306 is used for transmitting a redundancy code, the main set antenna 302 is used for receiving and transmitting a main set signal, the diversity antenna 301 is used for receiving a diversity signal, the redundancy code mixing element 303 is used for mixing the diversity signal and the generated redundancy code to generate a redundancy diversity signal, and the demodulator 307 is used for rejecting the redundancy code in the redundancy diversity signal.
In some embodiments, only one feeder may be connected between the redundancy code mixing element 303 and the demodulator 307, and the feeder may transmit the redundancy diversity signal to the demodulator 307, or transmit the redundancy code to the demodulator 307, so that the demodulator 307 eliminates the redundancy code mixed in the redundancy diversity signal, thereby demodulating the original diversity signal received by the diversity antenna without affecting the diversity signal.
In some embodiments, demodulator 307 comprises 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 main set antenna is directly connected with the demodulator, and a redundant code mixing element can be connected between one diversity antenna and the demodulator, namely in the mobile terminal of the 5G network, the 4 diversity antennas are respectively connected with 4 redundant code mixing elements, so that diversity signals received by the 4 diversity antennas are obviously distinguished from main set signals received by the main set antenna.
In some embodiments, in the 4G network, the mobile terminal includes a main antenna and a diversity antenna, and in the 5G network, the mobile terminal includes a main antenna and 4 diversity antennas, the main antenna is directly connected to the demodulator, the 4 diversity antennas may be connected to a redundant code mixing element, two adjacent diversity antennas of the 4 diversity antennas may be connected to a redundant code mixing element, that is, 2 redundant code mixing elements are provided, 3 diversity antennas may be connected to a redundant code mixing element, and the remaining diversity antenna is connected to a redundant code mixing element, that is, 2 redundant code mixing elements are provided.
Referring to fig. 4, another MIMO system is provided in the present application.
The MIMO system comprises diversity antennas 401, main diversity antennas 402, redundant code mixing elements 404, diversity feeders 403, main diversity feeders 406, redundant feeders 405 and a demodulator 407, wherein the diversity antennas 401 are connected to the demodulator 407, the main diversity antennas 402 are connected to the redundant code mixing elements 404, and the redundant code mixing elements 404 are connected to the demodulator 407.
In some embodiments, the redundancy code mixing element 404 is connected to the demodulator 407 by a main set feeder 406 and a redundancy feeder 405, the main set feeder 406 is used for transmitting a redundancy main set signal, the redundancy feeder 405 is used for transmitting a redundancy code, the main set antenna 402 is used for receiving and transmitting a main set signal, the diversity antenna 401 is used for receiving a diversity signal, the redundancy code mixing element 404 is used for mixing the main set signal and the generated redundancy code to generate a redundancy main set signal, and the demodulator 407 is used for removing the redundancy code in the redundancy main set signal.
In some embodiments, only one feeder line may be connected between the redundant code mixing element 404 and the demodulator 407, and the feeder line may transmit the redundant main set signal to the demodulator 407 or transmit the redundant code to the demodulator 407, so that the redundant code mixed in the redundant main set signal is removed by the demodulator 407, and thus the original main set signal received by the main set antenna is demodulated without affecting the main set signal.
In some embodiments, demodulator 407 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 a diversity feeder, a redundancy code mixing 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 can be converged into a diversity feeder to be connected to the demodulator, two adjacent diversity antennas of the 4 diversity antennas can be converged into a diversity feeder to be connected to the demodulator, that is, 2 diversity feeders are required in total, 3 diversity antennas can be converged 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 required in total, and a redundancy code mixing 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 redundant code mixing element and transmitting the main diversity signal to a demodulator; the redundant code mixing element generates a redundant code; and mixing the diversity signal and the redundant code to generate a redundant diversity signal.
As shown in fig. 5, the 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 antennas are connected to a redundant code mixing element, the diversity signal is transmitted to the demodulator through the redundant code mixing element, in the mobile terminal of the 5G network, the four diversity antennas are respectively connected to the four redundant code mixing elements, the diversity signals received by the four diversity antennas are transmitted to the redundant code mixing element through the four diversity feeders, so that the diversity signals received by the four diversity antennas are obviously distinguished from the main set signal received by the main set antenna.
Optionally, in the 4G network, the mobile terminal includes a main diversity antenna and a diversity antenna, in the 5G network, the mobile terminal includes a main diversity antenna and four diversity antennas, the main diversity signal is directly transmitted to the demodulator through the main diversity feeder, the four diversity antennas can be commonly connected to a redundancy mixing element, the diversity signals received by the four diversity antennas are transmitted to a redundancy mixing element through a diversity feeder, or two adjacent diversity antennas of the four diversity antennas can be commonly connected to a redundancy mixing element, i.e. two redundancy mixing elements are provided in total, the diversity signals received by two adjacent diversity antennas of the four diversity antennas are transmitted to two redundancy mixing elements through two diversity feeders, or three diversity antennas can be commonly connected to a redundancy mixing element, and the remaining diversity antenna is connected to a redundancy mixing element, that is, two redundant code mixing elements are provided, the diversity signals received by three of the four diversity antennas are transmitted to the redundant code mixing element through one diversity feeder, and the diversity signals received by the remaining diversity antenna are transmitted to the redundant code mixing element through the other diversity feeder.
For example, in order to distinguish the main set signal received by the main set antenna from the diversity signal received by the diversity antenna, a redundant code mixing element is disposed between the diversity antenna and the demodulator, and the redundant code mixing element continuously generates a redundant code to generate a redundant code sequence.
For example, after the redundant code mixing element receives the diversity signal transmitted by the diversity antenna through the diversity feeder, a redundant code is extracted from the redundant code sequence and mixed with the received diversity signal to form a redundant diversity signal.
Optionally, after the redundant diversity signal is generated in the redundant code mixing element, the redundant code mixing element transmits the redundant code to the demodulator by using the redundant feeder, the redundant code mixing element transmits the redundant diversity signal to the demodulator by using the diversity feeder between the redundant code mixing element and the demodulator, and after the demodulator receives the redundant diversity signal transmitted by the redundant code mixing element and the redundant code mixed in the redundant diversity signal, the demodulator rejects the redundant code mixed in the redundant diversity signal, so that the demodulator demodulates the original diversity signal received by the diversity antenna without affecting the diversity signal.
Optionally, the redundant code mixing element is connected to the demodulator by using only one feeder line, after the redundant diversity signal is generated in the redundant code mixing element, the redundant code mixing element uses the feeder line to transmit the redundant diversity signal and the redundant code to the demodulator in sequence, and the demodulator rejects the redundant code mixed in the redundant diversity signal, so that the demodulator demodulates the original diversity signal received by the diversity antenna without affecting the diversity 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 redundant code mixing element, and transmitting the diversity signal to a demodulator; the redundant code mixing element generates a redundant code; and mixing the main set signal and the redundant code to generate a redundant main set signal.
As shown in fig. 6, the specific flow of the method for distinguishing signals in the MIMO system is as follows:
For example, in a MIMO channel, a base station transmits two or more signals to a 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, and in the 5G network, the mobile terminal includes a main set antenna and four diversity antennas, the four diversity antennas are directly connected to the demodulator, the four diversity antennas may be connected to a diversity feeder line in a converged manner, and are connected to the demodulator by using the diversity feeder line, that is, the diversity signals received by the four diversity antennas are transmitted to the demodulator by using a diversity feeder line, and a redundancy code mixing element may be connected between one main set antenna and the demodulator, that is, in the mobile terminal of the 5G network, the mobile terminal may make the diversity signals received by the four diversity antennas clearly distinguished from the main set signal received by the main set antenna.
Optionally, in the 4G network, the mobile terminal includes a main diversity antenna and a diversity antenna, and in the 5G network, the mobile terminal includes a main diversity antenna and four diversity antennas, the four diversity antennas are directly connected to the demodulator, the four diversity antennas can be combined into a diversity feeder to be connected to the demodulator, the diversity signals received by the four diversity antennas are transmitted to the demodulator through a diversity feeder, or two adjacent diversity antennas of the four diversity antennas are combined into a diversity feeder to be connected to the demodulator, that is, two diversity feeders are required in total, that is, the diversity signals received by the two adjacent diversity antennas of the four diversity antennas are transmitted to the demodulator through the two diversity antennas, or three diversity antennas are combined into a diversity feeder to be connected to the demodulator, and the other diversity antenna is directly connected to the demodulator, that is, that the diversity signals received by three of the four diversity antennas are transmitted to the demodulator through a diversity feeder In the adjuster.
Optionally, the main set antenna may receive a main set signal transmitted by the base station, and may also send the main set signal to the base station, however, the main set antenna may only transmit the received main set signal transmitted by the base station to the redundant code mixing element, so that the redundant code mixing element mixes the main set signal received by the main set antenna and the generated redundant code to generate a redundant main set signal, and the main set signal sent to the base station is not transmitted to the redundant code mixing element, thereby avoiding the redundant code generated by the redundant code mixing element from affecting the main set signal sent by the main set antenna to the base station.
For example, in order to distinguish the main set signal received by the main set antenna from the diversity signal received by the diversity antenna, a redundant code mixing element is disposed between the main set antenna and the demodulator, and the redundant code mixing element continuously generates a redundant code to generate a redundant code sequence.
And 603, mixing the main set signal and the redundant code to generate a redundant main set signal.
For example, after the redundant code mixing element receives the main set signal transmitted by the main set antenna through the main set feeder, a redundant code is taken out from the redundant code sequence and mixed with the received main set signal to form a redundant main set signal.
Optionally, after the redundant main set signal is generated in the redundant code mixing element, the redundant code mixing element transmits the redundant code to the demodulator by using the redundant feeder, the redundant code mixing element transmits the redundant main set signal to the demodulator by using the diversity feeder between the redundant code mixing element and the demodulator, and after the demodulator receives the redundant main set signal transmitted by the redundant mixing element and the redundant code mixed in the redundant main set signal, the demodulator rejects the redundant code mixed in the redundant main set signal, so that the demodulator demodulates the original main set signal received by the main set antenna, and does not affect the main set signal received by the main set antenna.
Optionally, the redundant code mixing element is connected to the demodulator by using only one feeder line, after the redundant code mixing element generates the redundant main set signal, the redundant code mixing element uses the feeder line to transmit the redundant main set signal and the redundant code to the demodulator in sequence, and the demodulator rejects the redundant code mixed in the redundant main set signal, so that the demodulator demodulates the original main set signal received by the main set antenna, and does not affect the main set signal received by the main set antenna.
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 and the method for distinguishing signals of the MIMO system provided by the embodiment 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 embodiment is only used to help understanding the technical solution 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 (7)
1. A MIMO system, comprising:
a main set antenna, at least one diversity antenna, demodulator and at least one redundant code mixing element;
the main antenna is connected with the demodulator, the diversity antenna is connected with the redundant code mixing element, the redundant code mixing element is used for mixing a diversity signal and the generated redundant code to generate a redundant diversity signal, the main signal received by the main antenna is transmitted to the demodulator through a main feeder line, the redundant code mixing element is connected with the demodulator through a diversity feeder line, and the diversity feeder line is used for transmitting the redundant diversity signal;
the redundant code mixing element is connected with the demodulator, and the demodulator is used for rejecting the redundant codes in the redundant diversity signals.
2. The MIMO system of claim 1, wherein the primary set antennas are configured to receive and transmit primary set signals and the diversity antennas are configured to receive diversity signals.
3. The MIMO system of claim 1, wherein the redundancy code mixing element is coupled to the demodulator and comprises:
the redundant code mixing element is connected with the demodulator by a diversity feeder and a redundant feeder, the diversity feeder is used for transmitting redundant diversity signals, and the redundant feeder is used for transmitting redundant codes.
4. A MIMO system, comprising:
a main set antenna, at least one diversity antenna, demodulator and a redundant code mixing element;
the main set antenna is connected with the redundant code mixing element, the diversity antenna is connected with the demodulator, the redundant code mixing element is used for mixing a main set signal received by the main set antenna and a generated redundant code to generate a redundant main set signal, the diversity signal received by the diversity antenna is transmitted to the demodulator through a diversity feeder line, the redundant code mixing element is connected with the demodulator through the main set feeder line, and the main set feeder line is used for transmitting the redundant main set signal;
the redundant code mixing element is connected with the demodulator, and the demodulator is used for rejecting the redundant codes in the redundant main set signal.
5. A method for distinguishing signals in a MIMO system, comprising:
transmitting the diversity signal to a redundant code mixing element and transmitting the main diversity signal to a demodulator;
the redundant code mixing element generates a redundant code;
mixing the diversity signal and the redundant code to generate a redundant diversity signal;
said mixing said diversity signal and said redundancy code to generate a redundant diversity signal comprising:
the redundancy code mixing element transmits the redundancy code and the redundancy diversity signal to a demodulator;
the demodulator strips out the redundant codes in the redundant diversity signal.
6. A method for distinguishing signals in a MIMO system, comprising:
transmitting the main set signal received by the main set antenna to a redundant code mixing element, and transmitting the diversity signal to a demodulator;
the redundant code mixing element generates a redundant code;
mixing the primary set signal and the redundant code to generate a redundant primary set signal;
said mixing said primary set signal and said redundant code to generate a redundant primary set signal comprising:
the redundancy code mixing element transmits the redundancy code and the redundancy master set signal to a demodulator;
the demodulator strips out the redundant codes in the redundant primary set signal.
7. A mobile terminal device, characterized in that it comprises a MIMO system according to any one of claims 1 to 4.
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