CN113489555B - Channel quality detection terminal and electronic equipment - Google Patents
Channel quality detection terminal and electronic equipment Download PDFInfo
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- CN113489555B CN113489555B CN202110914536.4A CN202110914536A CN113489555B CN 113489555 B CN113489555 B CN 113489555B CN 202110914536 A CN202110914536 A CN 202110914536A CN 113489555 B CN113489555 B CN 113489555B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The embodiment of the invention provides a channel quality detection terminal and electronic equipment, and relates to the technical field of communication. The channel quality detection terminal includes: the duplexer comprises a duplexer, a first switch, a first power amplifier and a radio frequency transceiver, wherein the first switch comprises a first contact and a second contact; when the radio frequency transceiver receives a downlink signal sent by the base station through a first downlink signal transmission channel, the radio frequency transceiver controls the first switch to be switched from the first contact to the second contact; the radio frequency transceiver sends the first sounding reference signal to the base station through the first uplink signal transmission channel, so that the base station detects the first downlink signal transmission channel according to the first sounding reference signal, wherein the frequency of the first sounding reference signal is within the frequency range of the downlink signal. Thus, the evaluation of the channel quality of the downlink signal in the FDD system is realized.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a channel quality detection terminal and electronic equipment.
Background
The transmission rate of the current communication device is faster and faster, which results in more and more symbol states of the downlink Modulation mode, from 2 states of Binary Phase Shift Keying (BPSK) to 4 states of Quadrature Phase Shift Keying (QPSK), and then 16 states of Quaternary Amplitude Modulation (QAM) 16QAM, and at present, 64qam,256QAM and 1024QAM supported by a few mobile phone platforms exist.
When the downlink modulation symbols are in more and more states, the symbols are more and more susceptible to interference, and the sensitivity is reduced. In this case, in order to achieve a good reception characteristic, when a plurality of diversity reception paths are provided in one communication system, it is required that the strength difference of reception channels of a multi-path diversity reception path or a multiple-in-multiple-out (MIMO) path is generally within 3dB, and at worst within 6dB, to achieve a good reception characteristic.
Therefore, a method for detecting and evaluating the signal quality of the downlink channel is required, so that the stability of the performance can still be ensured when the transmission rate of the downlink signal transmitted by multiple channels simultaneously reaches the maximum downlink rate. In a Time Division Duplex (TDD) system, a channel Sounding Reference Signal (SRS) rotation switching mode may be adopted, and the channel quality of a received Signal at the same frequency is obtained by using reciprocity between transmitting and receiving antennas. In a Frequency Division Duplex (FDD) system, the transmitted signal and the received signal are not in the same Frequency range, that is, there is no reciprocity between the transmitting and receiving antennas, so that the SRS with the Frequency in the Frequency range of the downlink signal cannot be transmitted to the base station, and the channel quality of the downlink signal is obtained by the base station detecting the SRS.
Disclosure of Invention
The present invention is directed to a channel quality detecting terminal and an electronic device, which are capable of solving the above-mentioned problems of the prior art.
In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:
in a first aspect, an embodiment of the present invention provides a channel quality detection terminal, configured to communicate with a base station, where the channel quality detection terminal includes: the duplexer, the first contact and the radio frequency transceiver are sequentially and electrically connected to form a first downlink signal transmission channel, and the radio frequency transceiver, the first power amplifier, the second contact and the duplexer are sequentially and electrically connected to form a first uplink signal transmission channel;
when the radio frequency transceiver receives a downlink signal sent by the base station through the first downlink signal transmission channel, the radio frequency transceiver controls the first switch to be switched from the first contact to the second contact;
the radio frequency transceiver sends a first sounding reference signal to the base station through the first uplink signal transmission channel, so that the base station detects the first downlink signal transmission channel according to the first sounding reference signal, wherein the frequency of the first sounding reference signal is within the frequency range of the downlink signal.
In an optional embodiment, the channel quality detection terminal further includes a first coupler, where the radio frequency transceiver, the first power amplifier, the first coupler, the second contact, and the duplexer are sequentially and electrically connected to form the first uplink signal transmission channel, and the first coupler is further electrically connected to the radio frequency transceiver to form a first coupling channel;
the first coupler samples the first sounding reference signal to obtain a first sampling signal, and sends the first sampling signal to the radio frequency transceiver through the first coupling channel;
the radio frequency transceiver carries out power detection on the first sampling signal to obtain a first detection result, and sends the first detection result to the base station, so that the base station judges the validity of the first sounding reference signal according to the first detection result.
In an optional implementation manner, the channel quality detection terminal further includes at least one antenna module, where the antenna module includes a filter and a second switch, the second switch includes a third contact and a fourth contact, the filter, the third contact, and the radio frequency transceiver are sequentially electrically connected to form a second downlink signal transmission channel, and the radio frequency transceiver, the first power amplifier, the fourth contact, and the filter are sequentially electrically connected to form a second uplink signal transmission channel;
when the radio frequency transceiver receives a downlink signal sent by the base station through the second downlink signal transmission channel, the radio frequency transceiver controls the second switch to switch from the third contact to the fourth contact;
and the radio frequency transceiver sends a second sounding reference signal to the base station through the second uplink signal transmission channel, so that the base station detects the second downlink signal transmission channel according to the second sounding reference signal, wherein the frequency of the second sounding reference signal is within the frequency range of the downlink signal.
In an optional implementation manner, the antenna module further includes a second coupler, the channel quality detection terminal further includes a multi-way selection switch, the multi-way selection switch includes a first endpoint and a second endpoint, the first power amplifier, the first coupler, the first endpoint, and the radio frequency transceiver are sequentially and electrically connected to form the first coupling channel, and the first power amplifier, the second coupler, the second endpoint, and the radio frequency transceiver are sequentially and electrically connected to form a second coupling channel;
when the radio frequency transceiver receives a downlink signal sent by the base station through the second downlink signal transmission channel, the radio frequency transceiver controls the multi-way selection switch to be switched from the first endpoint to the second endpoint;
the second coupler samples the second sounding reference signal to obtain a second sampling signal, and sends the second sampling signal to the radio frequency transceiver through the second coupling channel;
and the radio frequency transceiver carries out power detection on the second sampling signal to obtain a second detection result, and sends the second detection result to the base station, so that the base station judges the validity of the second sounding reference signal according to the second detection result.
In an optional embodiment, after the radio frequency transceiver transmits the first sounding reference signal to the base station through the first uplink signal transmission channel, the radio frequency transceiver controls the first switch to switch from the second contact back to the first contact;
and the radio frequency transceiver receives a feedback signal of the base station through the first downlink transmission channel, wherein the feedback signal represents a judgment result of the base station on the effectiveness of the first sounding reference signal.
In an optional embodiment, the channel quality detection terminal further includes an uplink antenna module, and the radio frequency transceiver, the uplink antenna module, and the duplexer are electrically connected in sequence;
and the radio frequency transceiver sends the first detection result to the base station through the uplink antenna module.
In an optional implementation manner, the uplink antenna module includes a power amplifier and a coupler, and the radio frequency transceiver, the power amplifier, the coupler, and the duplexer are electrically connected in sequence to form an uplink signal transmission channel;
and the radio frequency transceiver sends the first detection result to the base station through the uplink signal transmission channel.
In an optional embodiment, the radio frequency transceiver is further configured to send the first sounding reference signal to the base station through the first uplink signal transmission channel when it is determined that the first downlink signal transmission channel, the first uplink signal transmission channel, and the uplink signal transmission channel are all idle.
In an optional embodiment, the radio frequency transceiver is further configured to determine that a target channel is idle when a physical downlink control channel PDCCH signal and a physical downlink shared channel PDSCH signal are not detected in the target channel, where the target channel is any one of the first downlink signal transmission channel, the first uplink signal transmission channel, and the uplink signal transmission channel.
In a second aspect, an embodiment of the present invention further provides an electronic device, where the electronic device includes the channel quality detection terminal described in the foregoing embodiment.
Compared with the prior art, the channel quality detection terminal and the electronic device provided by the invention comprise: the duplexer, the first contact and the radio frequency transceiver are sequentially and electrically connected to form a first downlink signal transmission channel, and the radio frequency transceiver, the first power amplifier, the second contact and the duplexer are sequentially and electrically connected to form a first uplink signal transmission channel; when the radio frequency transceiver receives a receiving signal sent by the base station through the first downlink signal transmission channel, the radio frequency transceiver controls the first switch to be switched from the first contact to the second contact; then, the radio frequency transceiver sends the first sounding reference signal to the base station through the first uplink signal transmission channel, so that the base station detects the first downlink signal transmission channel according to the first sounding reference signal, wherein the frequency of the first sounding reference signal is within the frequency range of the downlink signal.
Because the frequency of the first sounding reference signal and the frequency of the downlink signal are in the same range, the base station can further obtain the channel quality of the first downlink signal transmission channel through which the downlink signal passes by detecting the first sounding reference signal, so that the evaluation of the channel quality of the downlink signal in the FDD system is realized.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 shows a first structural diagram of a channel quality detecting terminal according to an embodiment of the present invention.
Fig. 2 shows a second structural diagram of a channel quality detecting terminal according to an embodiment of the present invention.
Fig. 3 shows a third structural diagram of a channel quality detecting terminal according to an embodiment of the present invention.
Fig. 4 is a schematic diagram illustrating a fourth structure of a channel quality detecting terminal according to an embodiment of the present invention.
Fig. 5 is a schematic diagram illustrating a fifth structure of a channel quality detecting terminal according to an embodiment of the present invention.
Fig. 6 shows a sixth structural diagram of a channel quality detecting terminal according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should also be noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, detachable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
In the prior art, in an FDD system, since transmitted and received signals do not have the same frequency range, that is, there is no reciprocity between the transmitting and receiving antennas, it is impossible to transmit an SRS with a frequency within the frequency range of a downlink signal to a base station, and then the base station detects the SRS to obtain the channel quality of the downlink signal.
In view of the above, the present invention provides a channel quality detecting terminal and an electronic device to solve the above problems.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a first structure of a channel quality detecting terminal according to an embodiment of the present invention. Channel quality detecting terminal 100 is used for communicating with a base station, and is used for receiving signals transmitted from the base station and transmitting signals to the base station.
The channel quality detection terminal 100 includes: a duplexer 110, a first switch 120, a radio frequency transceiver 130, and a first power amplifier 140. The first switch 120 includes a first contact 1201 and a second contact 1202. The duplexer 110, the first contact 1201 and the rf transceiver 130 are electrically connected in sequence to form a first downlink signal transmission channel. The radio frequency transceiver 130, the first power amplifier 140, the second contact 1202 and the duplexer 110 are electrically connected in sequence to form a first uplink signal transmission channel.
In this embodiment, the base station is configured to send a signal to the rf transceiver 130 through the first downlink signal transmission channel to indicate that the base station is ready to detect the quality of the first downlink signal transmission channel by receiving the sounding reference signal.
It is understood that the channel quality detecting terminal 100 further includes an antenna, and the channel quality detecting terminal 100 receives a signal transmitted from the base station through the antenna and transmits a signal to the base station through the antenna.
Preferably, the duplexer 110 is electrically connected with the antenna. The duplexer 110 is a device through which both the first downlink signal transmission channel and the first uplink signal transmission channel pass, and on one hand, receives a signal transmitted from the base station through the antenna, and transmits the signal to the radio frequency transceiver 130 through the first downlink signal transmission channel; on the other hand, it transmits a signal, which is transmitted by the radio frequency transceiver 130 and transmitted through the first uplink signal transmission channel, to the base station through the antenna.
It should be noted that the first switch 120 may be a single-pole double-throw switch, and the radio frequency transceiver 130 controls the first switch 120 to switch to the first contact 1201 or the second contact 1202, so as to turn on either the first downlink signal transmission channel or the first uplink signal transmission channel.
When the radio frequency transceiver 130 receives a downlink signal transmitted by the base station through the first downlink signal transmission channel, the radio frequency transceiver 130 controls the first switch 120 to switch from the first contact 1201 to the second contact 1202, so that the first downlink signal transmission channel is disconnected and the first uplink signal transmission channel is connected. Further, the radio frequency transceiver 130 may transmit a signal to the first power amplifier 140 through the first uplink signal transmission channel.
The first power amplifier 140 is used to amplify the power of the signal transmitted by the rf transceiver 130, and the amplification factor is determined by the parameters of the first power amplifier 140.
In this embodiment, the rf transceiver 130 is configured to send a first sounding reference signal to the base station through a first uplink signal transmission channel, so that the base station detects the first downlink signal transmission channel according to the first sounding reference signal, where a frequency of the first sounding reference signal is within a frequency range of the downlink signal.
It should be noted that the frequency of the downlink signal is obtained according to a spectrum division rule in the international communication protocol, and the radio frequency transceiver 130 obtains a first sounding reference signal with a frequency within the frequency range of the downlink signal according to the frequency of the downlink signal and sends the first sounding reference signal to the base station.
Since the frequency of the first sounding reference signal is within the frequency range of the downlink signal, the base station may obtain the quality condition of the first downlink signal transmission channel receiving the downlink signal according to the detection result of the first sounding reference signal.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating a second structure of a channel quality detecting terminal according to an embodiment of the present invention. The channel quality detection terminal 110 further includes a first coupler 150, the radio frequency transceiver 130, the first power amplifier 140, the first coupler 150, the second contact 1202 and the duplexer 110, which are sequentially electrically connected to form a first uplink signal transmission channel, and the first coupler 150 is further electrically connected to the radio frequency transceiver 130 to form a first coupling channel.
In this embodiment, the first coupler 150 samples the first sounding reference signal to obtain a first sampling signal, and sends the first sampling signal to the radio frequency transceiver through the first coupling channel.
After being transmitted from the radio frequency transceiver 130, the first sounding reference signal first passes through the first power amplifier 140 to obtain a power-amplified first sounding reference signal, and then the power-amplified first sounding reference signal reaches the first coupler 150, and the first coupler 150 samples the power-amplified first sounding reference signal to obtain a first sampling signal.
Optionally, the first coupler 150 samples the power-amplified first sounding reference signal according to a preset sampling parameter to obtain a first sampling signal.
In this embodiment, the rf transceiver 130 includes a first power detection port 1301, and the first coupler 150 transmits the first sampled signal to the first power detection port 1301 of the rf transceiver 130 through a first coupling channel.
The rf transceiver 130 is further configured to perform power detection on the first sampling signal to obtain a first detection result, and send the first detection result to the base station, so that the base station determines the validity of the first sounding reference signal according to the first detection result.
In this embodiment, the first detection result is used to indicate whether the power of the first sampling signal is abnormal. If the power of the first sampling signal is abnormal, it indicates that the first sounding reference signal may be invalid or valid. At this time, two cases are divided: one is power detection abnormality caused by abnormality of the rf transceiver 130, in which case the first sounding reference signal is invalid; the other is a power detection abnormality caused by an abnormality of the first coupler 150, in which case the first sounding reference signal is valid.
When the power of the first sampling signal is abnormal, the channel quality detecting terminal 100 itself cannot determine whether the power detection is abnormal due to the abnormality of the rf transceiver 130 or the abnormality of the first coupler 150. Therefore, the first detection result is sent to the base station, and the base station determines, according to the first detection result, a reason why the channel quality detection terminal 100 detects that the power of the first sampling signal is abnormal, so as to determine the validity of the first sounding reference signal.
When the power of the first sampling signal is not abnormal, the first sounding reference signal is indicated to be valid, and at the moment, a first detection result representing that the power of the first sampling signal is not abnormal is still sent to the base station, so that the base station determines that the first sounding reference signal is valid.
Referring to fig. 3, fig. 3 is a schematic diagram illustrating a third structure of a channel quality detecting terminal according to an embodiment of the present invention.
The channel quality detection terminal 100 further includes at least one antenna module, the antenna module includes a filter 111 and a second switch 121, the second switch 121 includes a third contact 1211 and a fourth contact 1212, the filter 111, the third contact 1211 and the radio frequency transceiver 130 are sequentially electrically connected to form a second downlink signal transmission channel, and the radio frequency transceiver 130, the first power amplifier 140, the fourth contact 1212 and the filter 111 are sequentially electrically connected to form a second uplink signal transmission channel.
It should be noted that the number of the antenna modules is at least one, and in this embodiment, preferably three. It should be noted that, in the MIMO channel of the present embodiment, by providing a plurality of antenna modules, the transmission rate of data can be increased. For example, if an antenna module is provided, the transmission rate of data is doubled; if two antenna modules are provided, the transmission rate of data is increased by two times, and so on.
In this embodiment, the base station is configured to transmit a signal to the rf transceiver 130 through the second downlink signal transmission channel to indicate that the base station is ready to detect the quality of the second downlink signal transmission channel by receiving the sounding reference signal.
Preferably, the filter 111 is electrically connected to the antenna. The filter 111 is a device through which both the second downlink signal transmission channel and the second uplink signal transmission channel pass, and on one hand, it receives a signal sent from the base station through the antenna, and sends the signal to the radio frequency transceiver 130 through the second downlink signal transmission channel; on the other hand, it transmits a signal, which is transmitted by the radio frequency transceiver 130 and transmitted via the second uplink signal transmission channel, to the base station through the antenna.
Alternatively, the second switch 121 may be a single-pole double-throw switch, and the radio frequency transceiver 130 controls the second switch 121 to switch to the third contact 1211 or the fourth contact 1212, so as to turn on either the second downlink signal transmission channel or the second uplink signal transmission channel.
When the radio frequency transceiver 130 receives the downlink signal transmitted by the base station through the second downlink signal transmission channel, the radio frequency transceiver 130 controls the second switch 121 to switch from the third contact 1211 to the fourth contact 1212, so that the second downlink signal transmission channel is disconnected, and the second uplink signal transmission channel is connected. Further, the radio frequency transceiver 130 may transmit a signal to the first power amplifier 140 through a second uplink signal transmission channel.
In this embodiment, the rf transceiver 130 is configured to send a second sounding reference signal to the base station through a second uplink signal transmission channel, so that the base station detects a second downlink signal transmission channel according to the second sounding reference signal, where a frequency of the second sounding reference signal is within a frequency range of the downlink signal.
Similarly, the rf transceiver 130 obtains a second sounding reference signal with a frequency within the frequency range of the downlink signal according to the frequency of the downlink signal, and transmits the second sounding reference signal to the base station.
Since the frequency of the second sounding reference signal is within the frequency range of the downlink signal, the base station may obtain the quality condition of the second downlink signal transmission channel receiving the downlink signal according to the detection result of the second sounding reference signal.
Referring to fig. 4, fig. 4 is a schematic diagram illustrating a fourth structure of a channel quality detecting terminal according to an embodiment of the present invention. The antenna module further includes a second coupler 160, the channel quality detecting terminal 100 further includes a multi-way switch 170, the multi-way switch 170 includes a first end 1701 and a second end 1702, the first power amplifier 140, the first coupler 150, the first end 1701 and the radio frequency transceiver 130 are electrically connected in sequence to form a first coupling channel, and the first power amplifier 140, the second coupler 160, the second end 1702 and the radio frequency transceiver 130 are electrically connected in sequence to form a second coupling channel.
In this embodiment, the multiplexer 170 may be a single-pole double-throw switch, a single-pole three-throw switch, or a single-pole four-throw switch, which is not limited herein. In general, the number of the terminals of the multiplexer 170 should be the same as the number of the antenna modules, or the number of the terminals of the multiplexer 170 should be not less than the number of the antenna modules. In summary, it is necessary to connect the coupler of each antenna module to one end of the multiplexer 170, so as to form separate coupling channels.
Optionally, the multiplexer switch 170 is controlled by the rf transceiver 130 to switch to the first terminal 1701 or the second terminal 1702, so as to turn on either the first coupling channel or the second coupling channel.
When the radio frequency transceiver 130 receives the downlink signal transmitted by the base station through the second downlink signal transmission channel, the radio frequency transceiver 130 controls the second switch 121 to switch from the third contact 1211 to the fourth contact 1212. Meanwhile, the rf transceiver 130 controls the multiplexer 170 to switch from the first endpoint 1701 to the second endpoint 1702, so that the second uplink signal transmission channel and the second coupling channel are simultaneously turned on, and the second downlink signal transmission channel and the first coupling channel are simultaneously turned off.
It should be noted that, if the rf transceiver 130 detects that the second coupling channel is turned on while controlling the second switch 121 to switch from the third contact 1211 to the fourth contact 1212, which indicates that the multiplexer 170 is turned on at the second end 1702, the rf transceiver 130 will not control the multiplexer 170.
In this embodiment, the second coupler 160 samples the second sounding reference signal to obtain a second sampling signal, and sends the second sampling signal to the rf transceiver 130 through the second coupling channel.
After the second sounding reference signal is transmitted from the radio frequency transceiver 130, the second sounding reference signal is first obtained through the first power amplifier 140 after power amplification, and then the second sounding reference signal after power amplification reaches the second coupler 160, and the second coupler 160 samples the second sounding reference signal after power amplification to obtain a second sampling signal.
Optionally, the second coupler 160 samples the second sounding reference signal according to a preset sampling parameter to obtain a second sampling signal.
In this embodiment, the rf transceiver 130 includes a first power detection port 1301, and the second coupler 160 transmits the second sampled signal to the first power detection port 1301 of the rf transceiver 130 through a second coupling channel.
The rf transceiver 130 is further configured to perform power detection on the second sampling signal to obtain a second detection result, and send the second detection result to the base station, so that the base station determines the validity of the second sounding reference signal according to the second detection result.
In this embodiment, the second detection result is used to represent whether the power of the second sampling signal is abnormal. If the power of the second sampling signal is abnormal, it indicates that the second sounding reference signal may be invalid or valid. At this time, two cases are divided: one is power detection abnormality due to abnormality of the rf transceiver 130, in which case the second sounding reference signal is invalid; the other is a power detection abnormality caused by an abnormality of the second coupler 160, in which case the second sounding reference signal is valid.
When the power of the second sampling signal is abnormal, the channel quality detecting terminal 100 cannot determine whether the power detection is abnormal due to the abnormality of the rf transceiver 130 or the abnormality of the second coupler 160. Therefore, the second detection result is sent to the base station, and the base station determines, according to the second detection result, a reason why the channel quality detection terminal 100 detects that the power of the second sampling signal is abnormal, so as to determine the validity of the second sounding reference signal.
When the power of the second sampling signal is not abnormal, the second sounding reference signal is indicated to be valid, and at this time, a second detection result representing that the power of the second sampling signal is not abnormal is still sent to the base station, so that the base station determines that the second sounding reference signal is valid.
It can be understood that each antenna module needs to obtain a corresponding target detection result.
It should be noted that, after the radio frequency transceiver 130 sends the first sounding reference signal to the base station through the first uplink signal transmission channel, the radio frequency transceiver 130 controls the first switch 120 to switch from the second contact 1202 back to the first contact 1201, so that the first uplink signal transmission channel is disconnected, and the first downlink signal transmission channel is connected.
In this embodiment, if the number of the antenna modules is one, the radio frequency transceiver 130 transmits the second sounding reference signal to the base station through the second uplink signal transmission channel when the first uplink signal transmission channel is turned off and the first downlink signal transmission channel is turned on, that is, the radio frequency transceiver 130 controls the second switch 121 to switch from the third contact 1211 to the fourth contact 1212 when the first uplink signal transmission channel is turned off and the first downlink signal transmission channel is turned on.
At this time, two cases are divided: one is, the radio frequency transceiver 130 controls the first switch 120 to switch from the second contact 1202 back to the first contact 1201, so that the first uplink signal transmission channel is disconnected and the first downlink signal transmission channel is connected, at this time, the radio frequency transceiver 130 has sent the first sounding reference signal to the base station through the first uplink signal transmission channel; alternatively, the radio frequency transceiver 130 has not controlled the first switch 120 to switch from the first contact 1201 to the first contact 1202, and thus is in a state where the first uplink signal transmission channel is disconnected and the first downlink signal transmission channel is connected, and at this time, the radio frequency transceiver 130 does not transmit the first sounding reference signal to the base station through the first uplink signal transmission channel.
In fact, the number of antenna modules is not limited, and the rf transceiver 130 controls any switch to switch the end point, so that the target uplink signal transmission channel is turned on, and when the target downlink signal transmission channel is turned off, the switching needs to be performed on the premise that the remaining uplink signal transmission channels are in an open circuit state.
It is understood that the rf transceiver 130 receives the downlink signal through each downlink signal transmission channel at the same time, but the rf transceiver 130 controls each switch in turn, so that the target uplink signal transmission channel is turned on and the target downlink signal transmission channel is turned off. Therefore, the detection reference signal can be transmitted to the base station only through the target uplink signal transmission channel, and the accuracy of quality evaluation of the target downlink signal transmission channel is ensured.
In addition, the rf transceiver 130 controls any switch to switch the end point, so as to turn on the target uplink signal transmission channel, and when the target downlink signal transmission channel is turned off, the multi-way selection switch 170 is also controlled, so as to turn on the target coupling channel, and turn off the other coupling channels. Therefore, the sounding reference signal can be transmitted to the base station only through the target uplink signal transmission channel, and can be transmitted to the radio frequency transceiver 130 only through the target coupling channel, and the accuracy of quality evaluation on the target downlink signal transmission channel is further ensured.
In this embodiment, the rf transceiver 130 receives a feedback signal of the base station through the first downlink transmission channel, where the feedback signal represents a result of determining the validity of the first sounding reference signal by the base station.
It can be understood that the rf transceiver 130 receives, through the target downlink transmission channel, a feedback signal sent by the base station and indicating a determination result of the effectiveness of the base station on the target sounding reference signal.
In this embodiment, if the base station determines that the first sounding reference signal is valid according to the first detection result, it indicates that the base station may evaluate the channel quality of the first downlink signal transmission channel according to the detection of the first sounding reference signal, and select a different downlink modulation scheme according to a different result of the detection of the first sounding reference signal, which is not limited herein.
Optionally, the downlink modulation scheme includes 1024QAM, 256QAM, 64QAM, QPSK, BPSK, and the like.
If the base station determines that the first sounding reference signal is invalid according to the first detection result, it indicates that the radio frequency transceiver 130 is abnormal, and the base station cannot evaluate the channel quality of the first downlink signal transmission channel according to the detection of the first sounding reference signal. At this time, the feedback signal is used to prompt the operator of the above-described situation.
Referring to fig. 5, fig. 5 is a schematic diagram illustrating a fifth structure of a channel quality detecting terminal according to an embodiment of the present invention. The channel quality detecting terminal 100 further includes an uplink antenna module 180, and the radio frequency transceiver 130, the uplink antenna module 180 and the duplexer 110 are electrically connected in sequence.
In this embodiment, the rf transceiver is configured to send the first detection result to the base station through the uplink antenna module 180.
Optionally, the rf transceiver is further configured to send other target detection results to the base station through the uplink antenna module 180.
Referring to fig. 6, fig. 6 is a schematic diagram illustrating a sixth structure of a channel quality detecting terminal according to an embodiment of the present invention.
The uplink antenna module 180 includes a power amplifier 1802 and a coupler 1801, and the radio frequency transceiver 130, the power amplifier 1802, the coupler 1801 and the duplexer 110 are electrically connected in sequence to form an uplink signal transmission channel.
In this embodiment, the rf transceiver 130 is configured to send the first detection result to the base station through the uplink signal transmission channel.
The power amplifier 1802 is configured to perform power amplification on the first detection result sent by the radio frequency transceiver 130, obtain a first detection result after the power amplification, and send the first detection result after the power amplification to the coupler 1801. The amplification factor depends on the parameters of the power amplifier 1802.
Further, the coupler 1801 is configured to sample the first detection result after power amplification by the power amplifier 1802, so as to obtain a sampling signal.
Optionally, the coupler 1801 samples the first detection result after power amplification by the power amplifier 1802 according to a preset sampling parameter, so as to obtain a first detection result sampling signal.
In this embodiment, the rf transceiver 130 further includes a second power detection port 1302. The rf transceiver 130 is further configured to perform power detection on the first detection result sampling signal to obtain a detection result, and send the detection result to the base station, so that the base station determines the validity of the first sounding reference signal according to the detection result.
Optionally, the radio frequency transceiver 130 is further configured to send other target detection results to the base station through the uplink signal transmission channel, and refer to the specific process in which the first detection result is sent to the base station through the uplink signal transmission channel, which is not described herein again.
In this embodiment, the rf transceiver 130 is further configured to send the first sounding reference signal to the base station through the first uplink signal transmission channel when it is determined that the first downlink signal transmission channel, the first uplink signal transmission channel and the uplink signal transmission channel are all idle.
Wherein the radio frequency transceiver 130 does not detect the physical downlink control channel in the target channel
Determining that a target Channel is idle in the case of a Physical Downlink Control Channel (PDCCH) signal and a Physical Downlink Shared Channel (PDSCH) signal, wherein the target Channel is any one of the first Downlink signal transmission Channel, the first uplink signal transmission Channel, and the uplink signal transmission Channel.
It can be understood that, if a PDCCH signal and a PDSCH signal are detected in any one of the first downlink signal transmission channel, the first uplink signal transmission channel and the uplink signal transmission channel, it indicates that the target channel is not idle, and at this time, the first sounding reference signal cannot be transmitted to the base station through the first uplink signal transmission channel.
Optionally, the radio frequency transceiver 130 is further configured to send the second sounding reference signal to the base station through the second uplink signal transmission channel when it is determined that the second downlink signal transmission channel, the second uplink signal transmission channel, and the uplink signal transmission channel are all idle.
It can be understood that, in the case that it is determined that the uplink signal transmission channel, the target downlink signal transmission channel and the target uplink signal transmission channel are all idle, the radio frequency transceiver 130 needs to transmit the target sounding reference signal to the base station through the target uplink signal transmission channel.
It should be noted that, when determining that the uplink signal transmission channel, the target downlink signal transmission channel, and the target uplink signal transmission channel are all idle, the radio frequency transceiver 130 controls the target switch to perform endpoint switching, so that the target uplink signal transmission channel is turned on, and sends the target sounding reference signal to the base station through the target uplink signal transmission channel.
In addition, an embodiment of the present invention also includes an electronic device including any of the above-described embodiments of the channel quality detecting terminal 100. In this embodiment, the electronic device may be, but is not limited to, a mobile phone, a PDA, a tablet computer, a desktop computer, a notebook computer, etc., and the operating system of the electronic device 10 may be, but is not limited to, an Android (Android) system, an IOS (internet operating system) system, a Windows phone system, a Windows system, etc.
In summary, the channel quality detection terminal and the electronic device provided in the embodiments of the present invention include: the duplexer, the first contact and the radio frequency transceiver are sequentially and electrically connected to form a first downlink signal transmission channel, and the radio frequency transceiver, the first power amplifier, the second contact and the duplexer are sequentially and electrically connected to form a first uplink signal transmission channel; when the radio frequency transceiver receives a receiving signal sent by the base station through the first downlink signal transmission channel, the radio frequency transceiver controls the first switch to be switched from the first contact to the second contact; then, the radio frequency transceiver sends the first sounding reference signal to the base station through the first uplink signal transmission channel, so that the base station detects the first downlink signal transmission channel according to the first sounding reference signal, wherein the frequency of the first sounding reference signal is consistent with that of the received signal. Therefore, the radio frequency transceiver can timely transmit the first detection reference signal with the same frequency as the received signal to the base station through the control switching of the radio frequency transceiver to the first switch, so that the base station can obtain the channel quality of the first downlink signal transmission channel through the detection of the first detection reference signal, and the evaluation of the channel quality of the downlink received signal in the FDD system is realized.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. A channel quality detection terminal for communicating with a base station, the channel quality detection terminal comprising: the first switch comprises a first contact and a second contact, the duplexer, the first contact and the radio frequency transceiver are sequentially and electrically connected to form a first downlink signal transmission channel, the radio frequency transceiver, the first power amplifier, the first coupler, the second contact and the duplexer are sequentially and electrically connected to form a first uplink signal transmission channel, and the first coupler is further electrically connected with the radio frequency transceiver to form a first coupling channel;
when the radio frequency transceiver receives a downlink signal sent by the base station through the first downlink signal transmission channel, the radio frequency transceiver controls the first switch to switch from the first contact to the second contact;
the radio frequency transceiver sends a first sounding reference signal to the base station through the first uplink signal transmission channel, so that the base station detects the first downlink signal transmission channel according to the first sounding reference signal, wherein the frequency of the first sounding reference signal is within the frequency range of the downlink signal;
the first coupler samples the first sounding reference signal to obtain a first sampling signal, and sends the first sampling signal to the radio frequency transceiver through the first coupling channel;
the radio frequency transceiver carries out power detection on the first sampling signal to obtain a first detection result, and sends the first detection result to the base station, so that the base station judges the validity of the first sounding reference signal according to the first detection result, the first detection result represents whether the power of the first sampling signal is abnormal or not, if the power abnormality of the first sampling signal is caused by the abnormality of the radio frequency transceiver, the first sounding reference signal is invalid, and if the power abnormality of the first sampling signal is caused by the abnormality of the first coupler, the first sounding reference signal is valid.
2. The channel quality detection terminal of claim 1, further comprising at least one antenna module, wherein the antenna module comprises a filter and a second switch, the second switch comprises a third contact and a fourth contact, the filter, the third contact and the rf transceiver are electrically connected in sequence to form a second downlink signal transmission channel, and the rf transceiver, the first power amplifier, the fourth contact and the filter are electrically connected in sequence to form a second uplink signal transmission channel;
when the radio frequency transceiver receives a downlink signal sent by the base station through the second downlink signal transmission channel, the radio frequency transceiver controls the second switch to switch from the third contact to the fourth contact;
and the radio frequency transceiver sends a second sounding reference signal to the base station through the second uplink signal transmission channel, so that the base station detects the second downlink signal transmission channel according to the second sounding reference signal, wherein the frequency of the second sounding reference signal is within the frequency range of the downlink signal.
3. The channel quality detection terminal of claim 2, wherein the antenna module further comprises a second coupler, the channel quality detection terminal further comprises a multi-way switch, the multi-way switch comprises a first endpoint and a second endpoint, the first power amplifier, the first coupler, the first endpoint and the radio frequency transceiver are electrically connected in sequence to form the first coupling channel, and the first power amplifier, the second coupler, the second endpoint and the radio frequency transceiver are electrically connected in sequence to form a second coupling channel;
when the radio frequency transceiver receives a downlink signal sent by the base station through the second downlink signal transmission channel, the radio frequency transceiver controls the multi-way selection switch to be switched from the first endpoint to the second endpoint;
the second coupler samples the second sounding reference signal to obtain a second sampling signal, and sends the second sampling signal to the radio frequency transceiver through the second coupling channel;
and the radio frequency transceiver carries out power detection on the second sampling signal to obtain a second detection result, and sends the second detection result to the base station, so that the base station judges the validity of the second sounding reference signal according to the second detection result.
4. The channel quality detection terminal of claim 1, wherein after the radio frequency transceiver transmits the first sounding reference signal to the base station through the first uplink signal transmission channel, the radio frequency transceiver controls the first switch to switch from the second contact back to the first contact;
and the radio frequency transceiver receives a feedback signal of the base station through the first downlink transmission channel, wherein the feedback signal represents a judgment result of the effectiveness of the base station on the first sounding reference signal.
5. The channel quality detection terminal according to claim 1, further comprising an uplink antenna module, wherein the radio frequency transceiver, the uplink antenna module and the duplexer are electrically connected in sequence;
and the radio frequency transceiver sends the first detection result to the base station through the uplink antenna module.
6. The channel quality detecting terminal according to claim 5, wherein the uplink antenna module comprises a power amplifier and a coupler, and the radio frequency transceiver, the power amplifier, the coupler and the duplexer are electrically connected in sequence to form an uplink signal transmission channel;
and the radio frequency transceiver sends the first detection result to the base station through the uplink signal transmission channel.
7. The terminal according to claim 6, wherein the radio frequency transceiver is further configured to send the first sounding reference signal to the base station through the first uplink signal transmission channel when the first downlink signal transmission channel, the first uplink signal transmission channel and the uplink signal transmission channel are determined to be idle.
8. The terminal according to claim 7, wherein the radio frequency transceiver is further configured to determine that a target channel is idle when no PDCCH signal or PDSCH signal is detected in the target channel, where the target channel is any one of the first downlink signal transmission channel, the first uplink signal transmission channel, and the uplink signal transmission channel.
9. An electronic device, characterized in that it comprises a channel quality detection terminal according to any one of claims 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110914536.4A CN113489555B (en) | 2021-08-10 | 2021-08-10 | Channel quality detection terminal and electronic equipment |
| PCT/CN2022/099513 WO2023016084A1 (en) | 2021-08-10 | 2022-06-17 | Channel quality measurement terminal and electronic device |
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| CN202110914536.4A CN113489555B (en) | 2021-08-10 | 2021-08-10 | Channel quality detection terminal and electronic equipment |
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| CN113489555B (en) * | 2021-08-10 | 2023-04-18 | 上海闻泰信息技术有限公司 | Channel quality detection terminal and electronic equipment |
| CN114024631B (en) * | 2021-10-29 | 2023-12-15 | 浙江三维利普维网络有限公司 | Channel quality detection method and device, storage medium and electronic device |
| CN114666027B (en) * | 2022-05-17 | 2022-08-19 | 深圳小米通讯技术有限公司 | Message transmission method and device, electronic equipment and readable storage medium |
| CN116208304B (en) * | 2023-04-28 | 2023-07-18 | 无锡智鸿达电子科技有限公司 | Method, device, medium and electronic equipment for checking signal quality of transceiver |
| CN116760430B (en) * | 2023-08-11 | 2024-01-09 | 国网信息通信产业集团有限公司 | 5G power communication terminal, method and detection method |
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| CN113489555A (en) | 2021-10-08 |
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