WO2023016084A1

WO2023016084A1 - Channel quality measurement terminal and electronic device

Info

Publication number: WO2023016084A1
Application number: PCT/CN2022/099513
Authority: WO
Inventors: 何文卿
Original assignee: 上海闻泰信息技术有限公司
Priority date: 2021-08-10
Filing date: 2022-06-17
Publication date: 2023-02-16
Also published as: CN113489555A; CN113489555B

Abstract

Provided in the embodiments of the present disclosure are a channel quality measurement terminal and an electronic device. The channel quality measurement terminal comprises a duplexer, a first switchover switch, a first power amplifier and a radio-frequency transceiver, wherein the first switchover switch comprises a first contact and a second contact; when the radio-frequency transceiver receives, by means of a first downlink signal transmission channel, a downlink signal which is sent by a base station, the radio-frequency transceiver controls the first switchover switch to switch from the first contact to the second contact; and the radio-frequency transceiver sends a first sounding reference signal to the base station by means of a first uplink signal transmission channel, such that the base station performs measurement in respect of the first downlink signal transmission channel according to the first sounding reference signal, wherein the frequency of the first sounding reference signal is within a frequency range of a downlink signal. In this way, the evaluation of the channel quality of a downlink signal is realized in an FDD system.

Description

Channel quality detection terminal and electronic equipment

related cross reference

This disclosure claims the priority of the Chinese patent application with the application number 2021109145364 and the title of the invention "Channel Quality Detection Terminal and Electronic Equipment" filed with the China Patent Office on August 10, 2021, the entire contents of which are incorporated by reference in this disclosure .

technical field

The disclosure relates to a channel quality detection terminal and electronic equipment.

Background technique

The transmission rate of current communication equipment is getting faster and faster, resulting in more and more symbol states of the downlink modulation method, from the two states of Binary Phase Shift Keying (BPSK) to quadrature phase shift keying (Quadrature Phase Shift Keying, QPSK) 4 states, and later Quadrature Amplitude Modulation (Quadrature Amplitude Modulation, QAM) 16 states of 16QAM, and currently, 64QAM, 256QAM and a few mobile phone platforms support 1024QAM.

When the states of the downlink modulated symbols are more and more, the symbols will be more and more susceptible to interference, and the sensitivity will decrease accordingly. In this case, in order to achieve better reception characteristics, when there are multiple diversity reception paths in a communication system, multiple diversity reception paths or multiple-in multiple-out (multiple-in multiple-out, MIMO) paths are required. The strength difference of the receiving channel is generally within 3dB, and the worst is within 6dB, in order to achieve better receiving characteristics.

Therefore, it is required to have a method for detecting and evaluating the signal quality of the downlink channel, so that the downlink signal can still ensure stable performance when the transmission rate of the downlink signal reaches the maximum downlink rate. In the time division duplex (Time Division Duplexing, TDD) system, it is possible to use the channel sounding reference signal (Sounding Reference Signal, SRS) round-cutting method, and use the reciprocity between the transmitting and receiving antennas to obtain the receiving signal of the same frequency channel quality. In the Frequency Division Duplexing (FDD) system, since 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 the transmitting frequency cannot be within the same frequency range. The SRS within the frequency range of the downlink signal is sent to the base station, and then the channel quality of the downlink signal is obtained through the detection of the SRS by the base station.

Contents of the invention

(1) Technical problems to be solved

How to detect and evaluate the signal quality of the downlink channel.

(2) Technical solutions

According to various embodiments of the present disclosure, a channel quality detection terminal and electronic equipment are provided.

The purpose of the present disclosure is to provide a channel quality detection terminal and electronic equipment, which aims to improve the above-mentioned problems existing in the prior art.

A channel quality detection terminal configured to communicate with a base station, the channel quality detection terminal comprising: a duplexer, a first switch, a first power amplifier, and a radio frequency transceiver, the first switch comprising a first contact and the second contact, the duplexer, the first contact and the radio frequency transceiver are sequentially electrically connected to form a first downlink signal transmission channel, the radio frequency transceiver, the first power amplifier, the The second contact and the duplexer are sequentially electrically connected to form a first uplink signal transmission channel;

When the radio frequency transceiver receives the downlink signal sent by the base station through the first downlink signal transmission channel, the radio frequency transceiver controls the first switching switch to switch from the first contact to the second two contacts;

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 performs the first downlink signal transmission channel according to the first sounding reference signal detection, wherein the frequency of the first sounding reference signal is within the frequency range of the downlink signal.

As an optional implementation manner of this embodiment of the present disclosure, the channel quality detection terminal further includes a first coupler, the radio frequency transceiver, the first power amplifier, the first coupler, and the second The two contacts and the duplexer are sequentially electrically connected to form the first uplink signal transmission channel, and the first coupler is also 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 performs power detection on the first sampling signal, obtains a first detection result, and sends the first detection result to the base station, so that the base station judges the The validity of the first sounding reference signal.

As an optional implementation manner of this embodiment of the present disclosure, the radio frequency transceiver transmits a signal to the first power amplifier through the first uplink signal transmission channel; the first power amplifier transmits a signal to the radio frequency transceiver The power of the signal is amplified to obtain the first sounding reference signal after power amplification, and the amplification factor is determined by the parameters of the first power amplifier.

As an optional implementation manner of the embodiment of the present disclosure, the first coupler samples the power-amplified first sounding reference signal according to a preset sampling parameter to obtain the first sampling signal.

As an optional implementation manner of this embodiment of the present disclosure, the radio frequency transceiver sends the first detection result to the base station when the first detection result indicates that the power of the first sampling signal is not abnormal. , so that the base station determines that the first sounding reference signal is valid.

As an optional implementation manner of this embodiment of the present disclosure, when the first detection result indicates that the power of the first sampling signal is abnormal, the radio frequency transceiver sends the first detection result to the base station, The base station is configured to determine the reason why the power of the first sampling signal is abnormal according to the first detection result, so as to determine the validity of the first sounding reference signal.

As an optional implementation manner of this embodiment of the present disclosure, when the first detection result indicates that the power of the first sampling signal is abnormal, the radio frequency transceiver sends the first detection result to the base station, In order for the base station to determine, based on the first detection result, that the reason why the power of the first sampling signal is abnormal is that the abnormality of the radio frequency transceiver causes the abnormality of the first detection result, then it is determined that the first sounding reference signal is invalid or, to cause the base station to determine that the power of the first sampling signal is abnormal based on the first detection result because the abnormality of the first coupler causes the abnormality of the first detection result, then determine that the first The sounding reference signal is valid.

As an optional implementation manner of the embodiment of the present disclosure, the channel quality detection terminal further includes at least one antenna module, the antenna module includes a filter and a second switch, and the second switch includes a first Three contacts and a fourth contact, the filter, the third contact and the radio frequency transceiver are electrically connected in sequence to form a second downlink signal transmission channel, 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 the downlink signal sent by the base station through the second downlink signal transmission channel, the radio frequency transceiver controls the second switching switch to switch from the third contact to the fourth contact;

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.

As an optional implementation manner of the embodiment of the present disclosure, the antenna module further includes a second coupler, and the channel quality detection terminal further includes a multiplexing switch, and the multiplexing switch includes a first terminal and a The second terminal, the first power amplifier, the first coupler, the first terminal and the radio frequency transceiver are electrically connected in sequence to form the first coupling channel, the first power amplifier, The second coupler, the second terminal and the radio frequency transceiver are electrically connected in sequence to form a second coupling channel;

When the radio frequency transceiver receives the downlink signal sent by the base station through the second downlink signal transmission channel, the radio frequency transceiver controls the multiplex switch to switch from the first terminal 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;

The radio frequency transceiver performs power detection on the second sampling signal, obtains a second detection result, and sends the second detection result to the base station, so that the base station judges the The validity of the second sounding reference signal.

As an optional implementation manner of this embodiment of the present disclosure, after the radio frequency transceiver sends the first sounding reference signal to the base station through the first uplink signal transmission channel, the radio frequency transceiver controls the a first toggle switch switches from the second contact back to the first contact;

The radio frequency transceiver receives a feedback signal from the base station through the first downlink transmission channel, where the feedback signal represents a judgment result of the base station on the validity of the first sounding reference signal.

As an optional implementation manner of the embodiment of the present disclosure, 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;

The radio frequency transceiver sends the first detection result to the base station through the uplink antenna module.

As an optional implementation manner of the embodiment of the present disclosure, 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 Constitute an uplink signal transmission channel;

The radio frequency transceiver sends the first detection result to the base station through the uplink signal transmission channel.

As an optional implementation manner of this embodiment of the present disclosure, the radio frequency transceiver is configured to determine that the first downlink signal transmission channel, the first uplink signal transmission channel, and the uplink signal transmission channel are all idle In this case, the first sounding reference signal is sent to the base station through the first uplink signal transmission channel.

As an optional implementation manner of the embodiment of the present disclosure, the radio frequency transceiver is configured to determine that the target channel is idle when no physical downlink control channel PDCCH signal and physical downlink shared channel PDSCH signal are detected in the target channel , 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.

An electronic device includes the channel quality detection terminal described in the foregoing implementation manners.

Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the disclosure. The objectives and other advantages of the disclosure will be realized and attained by the structure particularly pointed out in the written description, claims hereof as well as the accompanying drawings, the details of one or more embodiments of the disclosure being set forth in the accompanying drawings and the description below.

In order to make the above objects, features and advantages of the present disclosure more comprehensible, optional embodiments are given below and described in detail in conjunction with the accompanying drawings.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the accompanying drawings used in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and therefore are not It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

Fig. 1 is a schematic diagram of a first structure of a channel quality detection terminal provided by one or more embodiments of the present disclosure.

Fig. 2 is a schematic diagram of a second structure of a channel quality detection terminal provided by one or more embodiments of the present disclosure.

Fig. 3 is a schematic diagram of a third structure of a channel quality detection terminal provided by one or more embodiments of the present disclosure.

Fig. 4 is a schematic diagram of a fourth structure of a channel quality detection terminal provided by one or more embodiments of the present disclosure.

Fig. 5 is a schematic diagram of a fifth structure of a channel quality detection terminal provided by one or more embodiments of the present disclosure.

Fig. 6 is a schematic diagram of a sixth structure of a channel quality detection terminal provided by one or more embodiments of the present disclosure.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments It is a part of the embodiments of the present disclosure, but not all of them. The components of the disclosed embodiments generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely represents selected embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present disclosure, it should be noted that if the orientation or positional relationship indicated by the terms "upper", "lower", "inner" and "outer" appear, it is based on the orientation or positional relationship shown in the drawings, or It is the orientation or positional relationship that the product of the invention is usually placed in use, and it is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation , and therefore cannot be construed as limiting the present disclosure.

In addition, if the terms "first", "second", etc. appear, they are only configured to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

In the description of the present disclosure, it should also be noted that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present disclosure in specific situations.

It should be noted that the features in the embodiments of the present disclosure may be combined with each other under the condition of no conflict.

In the prior art, in the FDD system, since the 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 SRS whose frequency is within the frequency range of the downlink signal. to the base station, and then obtain the channel quality of the downlink signal through the detection of the SRS by the base station.

In view of this, the present disclosure provides a channel quality detection terminal and electronic equipment to solve the above problems.

Please refer to FIG. 1 , which is a schematic diagram of a first structure of a channel quality detection terminal provided by one or more embodiments of the present disclosure. The channel quality detection terminal 100 is configured to communicate with the base station, not only to receive signals sent by the base station, but also to transmit 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 radio frequency 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 radio frequency transceiver 130 through the first downlink signal transmission channel, to indicate that the base station has done a good job of detecting the quality of the first downlink signal transmission channel by receiving the sounding reference signal preparation.

It can be understood that the channel quality detection terminal 100 also includes an antenna, and the channel quality detection terminal 100 receives signals sent by the base station through the antenna and transmits signals to the base station through the antenna.

Preferably, the duplexer 110 is electrically connected to 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. On the one hand, it receives the signal sent by the base station through the antenna, and sends the signal through the first downlink signal transmission channel to the radio frequency transceiver 130; on the other hand, it transmits the signal transmitted by the radio frequency transceiver 130 and sent through the first uplink signal transmission channel to the base station through the antenna.

It should be noted that the first switch 120 can 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 that the first downlink signal Either the transmission channel or the first uplink signal transmission channel is turned on.

When the radio frequency transceiver 130 receives the downlink signal sent 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 The uplink signal transmission channel is disconnected, while the first uplink signal transmission channel is turned on. Further, the radio frequency transceiver 130 may transmit a signal to the first power amplifier 140 through the first uplink signal transmission channel.

Wherein, the first power amplifier 140 is configured to amplify the power of the signal transmitted by the radio frequency transceiver 130 , and the amplification factor is determined by the parameters of the first power amplifier 140 .

In this embodiment, the radio frequency transceiver 130 is configured to send 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.

It should be noted that the frequency of the downlink signal is obtained according to the spectrum division rules in the international communication protocol, and the radio frequency transceiver 130 obtains the first sounding reference signal whose frequency is within the frequency range of the downlink signal according to the frequency of the downlink signal, and sends the second A sounding reference signal is sent to the base station.

Since the frequency of the first SRS is within the frequency range of the downlink signal, the base station can obtain the quality of the first downlink signal transmission channel receiving the downlink signal according to the detection result of the first SRS.

Please refer to FIG. 2 , which is a schematic diagram of a second structure of a channel quality detection terminal provided by one or more embodiments of the present disclosure. The channel quality detection terminal 110 also 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 are sequentially electrically connected to form a first uplink signal transmission channel , the first coupler 150 is also electrically connected with 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.

Wherein, after the first sounding reference signal is transmitted from the radio frequency transceiver 130, it first passes through the first power amplifier 140 to obtain the power amplified first sounding reference signal, and then the power amplified first sounding reference signal reaches the first A coupler 150. 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 preset sampling parameters to obtain the first sampling signal.

In this embodiment, the radio frequency transceiver 130 includes a first power detection port 1301 , and the first coupler 150 sends the first sampling signal to the first power detection port 1301 of the radio frequency transceiver 130 through the first coupling channel.

The radio frequency transceiver 130 is further configured to perform power detection on the first sampled signal, obtain a first detection result, and send 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 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, there are two cases: one is the power detection abnormality caused by the abnormality of the radio frequency transceiver 130, in this case, the first sounding reference signal is invalid; the other is the power detection abnormality caused by the first coupler 150 An anomaly is detected, in which case the first sounding reference signal is valid.

When the power of the first sampled signal is abnormal, the channel quality detection terminal 100 cannot determine whether the power detection abnormality is caused by the abnormality of the radio frequency 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 judges the reason why the power of the first sampling signal detected by the channel quality detection terminal 100 is abnormal according to the first detection result, and then judges the validity of the first sounding reference signal.

When there is no abnormality in the power of the first sampling signal, it indicates that the first sounding reference signal is valid, and at this time, the first detection result indicating 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.

Please refer to FIG. 3 , which is a schematic diagram of a third structure of a channel quality detection terminal provided by one or more embodiments of the present disclosure.

The channel quality detection terminal 100 also 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 electrically connected in turn 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 electrically connected in turn to form a second uplink signal transmission channel. 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 known that, in the MIMO channel of this embodiment, by setting multiple antenna modules, the data transmission rate can be increased. For example, if one antenna module is installed, the data transmission rate is doubled; if two antenna modules are installed, the data transmission rate is doubled, and so on.

In this embodiment, the base station is configured to send a signal to the radio frequency 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. On the one hand, it receives the signal sent by the base station through the antenna, and sends the signal to the radio frequency transceiver through the second downlink signal transmission channel. On the other hand, it transmits the signal transmitted by the radio frequency transceiver 130 and sent through the second uplink signal transmission channel to the base station through the antenna.

Optionally, the second switch 121 can 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 that the second downlink signal transmission channel Or any of the second uplink signal transmission channels is turned on.

When the radio frequency transceiver 130 receives the downlink signal sent 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 The transmission channel is disconnected, and the second uplink signal transmission channel is switched on. Further, the radio frequency transceiver 130 may transmit a signal to the first power amplifier 140 through the second uplink signal transmission channel.

In this embodiment, the radio frequency transceiver 130 is configured to send the 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.

Similarly, the radio frequency transceiver 130 obtains the second sounding reference signal whose frequency is within the frequency range of the downlink signal according to the frequency of the downlink signal, and sends the second sounding reference signal to the base station.

Since the frequency of the second SRS is within the frequency range of the downlink signal, the base station can obtain the quality of the second downlink signal transmission channel receiving the downlink signal according to the detection result of the second SRS.

Please refer to FIG. 4 , which is a schematic diagram of a fourth structure of a channel quality detection terminal provided by one or more embodiments of the present disclosure. The antenna module also includes a second coupler 160, the channel quality detection terminal 100 also includes a multiplex switch 170, the multiplex switch 170 includes a first terminal 1701 and a second terminal 1702, the first power amplifier 140, the first The coupler 150, the first terminal 1701 and the radio frequency transceiver 130 are electrically connected in turn to form a first coupling channel, and the first power amplifier 140, the second coupler 160, the second terminal 1702 and the radio frequency transceiver 130 are electrically connected in turn to form a second channel. coupling channel.

In this embodiment, the multiplexer switch 170 may be a single-pole double-throw switch, may be a single-pole three-throw switch, or may be a single-pole four-throw switch, which is not specifically limited here. Generally, the number of terminals of the multi-way selection switch 170 should be consistent with the number of antenna modules, or the number of terminals of the multi-way selection switch 170 should not be less than the number of antenna modules. In short, it is necessary to connect the coupler of each antenna module to one terminal of the multiplexer 170, so as to form independent coupling channels.

Optionally, the radio frequency transceiver 130 controls the multiplexer 170 to switch to the first terminal 1701 or the second terminal 1702, so that either the first coupling channel or the second coupling channel is turned on.

When the radio frequency transceiver 130 receives the downlink signal sent 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 . At the same time, the radio frequency transceiver 130 controls the multiplexer 170 to switch from the first terminal 1701 to the second terminal 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 disconnected at the same time.

It should be noted that if the radio frequency transceiver 130 controls the second switching switch 121 to switch from the third contact 1211 to the fourth contact 1212, at the same time, it detects that the second coupling channel has been turned on, indicating that the multi-way selection switch 170 is now If the second terminal 1702 is turned on, 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 radio frequency transceiver 130 through the second coupling channel.

Wherein, after the second sounding reference signal is transmitted from the radio frequency transceiver 130, it first passes through the first power amplifier 140 to obtain a power-amplified second sounding reference signal, and then the power-amplified second sounding reference signal reaches the second The coupler 160. The second coupler 160 samples the power-amplified second sounding reference signal to obtain a second sampling signal.

Optionally, the second coupler 160 samples the second sounding reference signal according to preset sampling parameters to obtain the second sampling signal.

In this embodiment, the radio frequency transceiver 130 includes a first power detection port 1301 , and the second coupler 160 sends the second sampling signal to the first power detection port 1301 of the radio frequency transceiver 130 through the second coupling channel.

The radio frequency transceiver 130 is further configured to perform power detection on the second sampling signal, obtain a second detection result, and send the second detection result to the base station, so that the base station can judge the validity of the second sounding reference signal according to the second detection result.

In this embodiment, the second detection result is used to indicate 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, there are two situations: one is the power detection abnormality caused by the abnormality of the radio frequency transceiver 130, in this case, the second sounding reference signal is invalid; the other is the power detection abnormality caused by the second coupler 160 Anomalies are detected, in which case the second sounding reference signal is valid.

When the power of the second sampled signal is abnormal, the channel quality detection terminal 100 cannot determine whether the power detection abnormality is caused by the abnormality of the radio frequency 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 judges the reason why the power of the second sampling signal detected by the channel quality detection terminal 100 is abnormal according to the second detection result, and then judges the validity of the second sounding reference signal.

When there is no abnormality in the power of the second sampling signal, it indicates that the second sounding reference signal is valid, and at this time, the second detection result indicating 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 turned off, and the first downlink signal transmission channel is turned on.

In this embodiment, if the number of antenna modules is one, the radio frequency transceiver 130 transmits the second sounding reference signal when the first uplink signal transmission channel is off and the first downlink signal transmission channel is on It is sent to the base station through the second uplink signal transmission channel, that is to say, the radio frequency transceiver 130 controls the second switch when the first uplink signal transmission channel is disconnected and the first downlink signal transmission channel is turned on. 121 switches from the third contact 1211 to the fourth contact 1212.

At this time, there are two situations: one is that the radio frequency transceiver 130 controls the first switch 120 to switch from the second contact 1202 back to the first contact 1201, thereby causing the first uplink signal transmission channel to be disconnected, and the second In the case that the downlink signal transmission channel is turned on, 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; the other is that the radio frequency transceiver 130 has not yet controlled the first The switch 120 is switched from the first contact 1201 to the first contact 1202, so that the first uplink signal transmission channel is disconnected and the first downlink signal transmission channel is turned on. At this time, the radio frequency transceiver 130 does not connect the second A sounding reference signal is sent to the base station through the first uplink signal transmission channel.

In fact, the number of antenna modules is not limited. When the radio frequency transceiver 130 controls any switch to switch the endpoints, so that the target uplink signal transmission channel is turned on, and the target downlink signal transmission channel is disconnected, it needs to ensure that the remaining It is performed on the premise that the uplink signal transmission channel is in a disconnected state.

It can be understood that the radio frequency transceiver 130 receives downlink signals through each downlink signal transmission channel at the same time, but the radio frequency 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. It's open. Thus, it is realized that the sounding reference signal can only be transmitted to the base station through the target uplink signal transmission channel, which ensures the accuracy of the quality evaluation of the target downlink signal transmission channel.

In addition, when the radio frequency transceiver 130 controls any switching switch to switch the endpoints, so that the target uplink signal transmission channel is turned on, and when the target downlink signal transmission channel is disconnected, it also needs to control the multiplexer 170, so that the target coupling channel conduction, and the other coupled channels are disconnected. Thus, it is realized that the sounding reference signal can only be transmitted to the base station through the target uplink signal transmission channel, and can only be transmitted back to the radio frequency transceiver 130 through the target coupling channel, which further ensures the accuracy of the quality evaluation of the target downlink signal transmission channel.

In this embodiment, the radio frequency transceiver 130 receives a feedback signal from the base station through the first downlink transmission channel, where the feedback signal represents a judgment result of the base station on the validity of the first sounding reference signal.

It can be understood that the radio frequency transceiver 130 receives the feedback signal sent by the base station through the target downlink transmission channel, which represents the base station's judgment result of the validity of the target sounding reference signal.

In this embodiment, if the base station judges that the first SRS is valid according to the first detection result, it means that the base station can evaluate the channel quality of the first downlink signal transmission channel based on the detection of the first SRS, and According to different detection results of the first sounding reference signal, different downlink modulation modes are selected, which are not specifically limited here.

Optionally, the downlink modulation methods include 1024QAM, 256QAM, 64QAM, QPSK, and BPSK.

If the base station judges that the first SRS is invalid according to the first detection result, it means that the radio frequency transceiver 130 is abnormal, and the base station cannot evaluate the channel quality of the first downlink signal transmission channel based on the detection of the first SRS. At this time, the feedback signal is configured to remind the operator of the above situation.

Please refer to FIG. 5 , which is a schematic diagram of a fifth structure of a channel quality detection terminal provided by one or more embodiments of the present disclosure. The channel quality detection terminal 100 also 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 radio frequency transceiver is configured to send the first detection result to the base station through the uplink antenna module 180 .

Optionally, the radio frequency transceiver is further configured to send other target detection results to the base station through the uplink antenna module 180 .

Please refer to FIG. 6 , which is a schematic diagram of a sixth structure of a channel quality detection terminal provided by one or more embodiments of the present disclosure.

The uplink antenna module 180 includes a power amplifier 1802 and a coupler 1801. 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 radio frequency transceiver 130 is configured to send the first detection result to the base station through an uplink signal transmission channel.

Wherein, the power amplifier 1802 is configured to amplify the power of the first detection result sent by the radio frequency transceiver 130 to obtain the amplified first detection result, and send the amplified first detection result 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 to obtain a sampled signal.

Optionally, the coupler 1801 samples the first detection result after power amplification by the power amplifier 1802 according to preset sampling parameters, to obtain a first detection result sampling signal.

In this embodiment, the radio frequency transceiver 130 further includes a second power detection port 1302 . The radio frequency transceiver 130 is further configured to perform power detection on the first detection result sampled signal, obtain a detection result, and send the detection result to the base station, so that the base station judges the validity of the first sounding reference signal according to the detection result.

Optionally, the radio frequency transceiver 130 is also configured to send other target detection results to the base station through the uplink signal transmission channel. For the specific process of sending other target detection results to the base station through the uplink signal transmission channel, refer to the aforementioned first detection result transmitted through the uplink signal The specific process of sending the channel to the base station will not be repeated here.

In this embodiment, the radio frequency transceiver 130 is further configured to send the first sounding reference signal through the first uplink The signal transmission channel is sent to the base station.

Wherein, the radio frequency transceiver 130 determines that the target channel is idle when a physical downlink control channel (Physical Downlink Control Channel, PDCCH) signal and a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) signal are not detected in the target channel, 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 means that the target channel is not idle. When , the first sounding reference signal cannot be sent to the base station through the first uplink signal transmission channel.

Optionally, the radio frequency transceiver 130 is further configured to transmit the second sounding reference signal 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. sent to the base station.

It can be understood that the radio frequency transceiver 130 needs to send the target sounding reference signal to the base station through the target uplink signal transmission channel when 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.

It should be noted that, when the radio frequency transceiver 130 determines that the uplink signal transmission channel, the target downlink signal transmission channel and the target uplink signal transmission channel are all idle, control the target switching switch to perform endpoint switching, so that the target uplink signal transmission channel leads to communicate, and send the target sounding reference signal to the base station through the target uplink signal transmission channel.

In addition, embodiments of the present disclosure further include an electronic device, where the electronic device includes any implementation manner of the channel quality detection terminal 100 described above. In this embodiment, the electronic device can be, but not limited to, mobile phone, PDA, tablet computer, desktop computer, notebook computer, etc., and the operating system of the electronic device 10 can be, but not limited to, Android (Android) system, IOS ( iPhone operating system) system, Windows phone system, Windows system, etc.

To sum up, a channel quality detection terminal and electronic equipment provided by embodiments of the present disclosure include: a duplexer, a first switch, a first power amplifier, and a radio frequency transceiver, and the first switch includes a first contact and the second contact, the duplexer, the first contact and the radio frequency transceiver are sequentially 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 electrically connected Constitute the first uplink signal transmission channel; when the radio frequency transceiver receives the receiving 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; 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 first sounding reference signal and the receiving The frequency of the signal is the same. Thus, through the control switching of the first switching switch by the radio frequency transceiver, the radio frequency transceiver can timely transmit the first sounding reference signal consistent with the frequency of the received signal to the base station, so that the base station can pass the detection of the first sounding reference signal , and then obtain the channel quality of the first downlink signal transmission channel, and realize the evaluation of the channel quality of the downlink received signal in the FDD system.

The above are just various implementations of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope of the present disclosure. should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be defined by the protection scope of the claims.

The above is only a specific implementation of the present disclosure, but the scope of protection of the present disclosure is not limited thereto, any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present disclosure, should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be determined by the protection scope of the claims.

Industrial Applicability

Embodiments of the present disclosure provide a channel quality detection terminal and electronic equipment. The channel quality detection terminal can communicate with a base station, and the channel quality detection terminal sends 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, wherein the frequency of the first sounding reference signal is within the frequency range of the downlink signal, so as to implement the first downlink signal transmission channel through which the downlink signal passes The detection and evaluation of channel quality has strong industrial applicability.

Claims

A channel quality detection terminal configured to communicate with a base station, the channel quality detection terminal comprising: a duplexer, a first switch, a first power amplifier, and a radio frequency transceiver, the first switch comprising a first contact and the second contact, the duplexer, the first contact and the radio frequency transceiver are sequentially electrically connected to form a first downlink signal transmission channel, the radio frequency transceiver, the first power amplifier, the The second contact and the duplexer are sequentially electrically connected to form a first uplink signal transmission channel;

When the radio frequency transceiver receives the downlink signal sent by the base station through the first downlink signal transmission channel, the radio frequency transceiver controls the first switching switch to switch from the first contact to the second two contacts;

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 performs the first downlink signal transmission channel according to the first sounding reference signal detection, wherein the frequency of the first sounding reference signal is within the frequency range of the downlink signal.
The channel quality detection terminal according to claim 1, wherein the channel quality detection terminal further comprises a first coupler, the radio frequency transceiver, the first power amplifier, the first coupler, the second The two contacts and the duplexer are sequentially electrically connected to form the first uplink signal transmission channel, and the first coupler is also 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 performs power detection on the first sampling signal, obtains a first detection result, and sends the first detection result to the base station, so that the base station judges the The validity of the first sounding reference signal.
The channel quality detection terminal according to claim 2, wherein,

The radio frequency transceiver transmits a signal to the first power amplifier through the first uplink signal transmission channel;

The first power amplifier amplifies the power of the signal transmitted by the radio frequency transceiver to obtain a power-amplified first sounding reference signal, and the amplification factor is determined by the parameters of the first power amplifier.
The channel quality detection terminal according to claim 3, wherein,

The first coupler samples the power-amplified first sounding reference signal according to preset sampling parameters to obtain the first sampling signal.
The channel quality detection terminal according to claim 2, wherein,

The radio frequency transceiver sends the first detection result to the base station when the first detection result indicates that the power of the first sampling signal is not abnormal, so that the base station determines the first detection reference The signal is valid.
The channel quality detection terminal according to claim 2, wherein,

When the first detection result indicates that the power of the first sampling signal is abnormal, the radio frequency transceiver sends the first detection result to the base station, so that the base station determines according to the first detection result The reason why the power of the first sampling signal is abnormal, so as to determine the validity of the first sounding reference signal.
The channel quality detection terminal according to claim 6, wherein,

When the first detection result indicates that the power of the first sampling signal is abnormal, the radio frequency transceiver sends the first detection result to the base station, so that the base station determines according to the first detection result The reason why the power of the first sampling signal is abnormal is that the first detection result is abnormal due to the abnormality of the radio frequency transceiver, then it is determined that the first sounding reference signal is invalid; or, so that the base station according to the If it is determined by the first detection result that the power of the first sampling signal is abnormal because the abnormality of the first coupler causes the abnormality of the first detection result, then it is determined that the first sounding reference signal is valid.
The channel quality detection terminal according to claim 2, wherein the channel quality detection terminal further includes at least one antenna module, the antenna module includes a filter and a second switch, and the second switch includes a second switch. Three contacts and a fourth contact, the filter, the third contact and the radio frequency transceiver are electrically connected in sequence to form a second downlink signal transmission channel, 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 the downlink signal sent by the base station through the second downlink signal transmission channel, the radio frequency transceiver controls the second switching switch to switch from the third contact to the fourth contact;

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.
The channel quality detection terminal according to claim 8, wherein the antenna module further includes a second coupler, the channel quality detection terminal further includes a multiplex switch, and the multiplex switch includes a first terminal and the second terminal, the first power amplifier, the first coupler, the first terminal and the radio frequency transceiver are sequentially electrically connected to form the first coupling channel, and the first power amplifier , the second coupler, the second terminal and the radio frequency transceiver are electrically connected in sequence to form a second coupling channel;

When the radio frequency transceiver receives the downlink signal sent by the base station through the second downlink signal transmission channel, the radio frequency transceiver controls the multiplex switch to switch from the first terminal 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;

The radio frequency transceiver performs power detection on the second sampling signal, obtains a second detection result, and sends the second detection result to the base station, so that the base station judges the The validity of the second sounding reference signal.
The channel quality detection terminal according to claim 2, wherein the radio frequency transceiver sends the first sounding reference signal to the base station through the first uplink signal transmission channel, comprising:

The radio frequency transceiver controls the first switch to switch from the second contact back to the first contact;

The radio frequency transceiver receives a feedback signal from the base station through the first downlink transmission channel, where the feedback signal represents a judgment result of the base station on the validity of the first sounding reference signal.
The channel quality detection terminal according to claim 2, wherein 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;

The radio frequency transceiver sends the first detection result to the base station through the uplink antenna module.
The channel quality detection terminal according to claim 11, wherein 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 sequentially electrically The connection constitutes an uplink signal transmission channel;

The radio frequency transceiver sends the first detection result to the base station through the uplink signal transmission channel.
The channel quality detection terminal according to claim 12, wherein the radio frequency transceiver is further configured to determine that the first downlink signal transmission channel, the first uplink signal transmission channel and the uplink signal transmission channel are all In a case of being idle, sending the first sounding reference signal to the base station through the first uplink signal transmission channel.
The channel quality detection terminal according to claim 13, wherein the radio frequency transceiver is further configured to determine the target when no physical downlink control channel PDCCH signal and physical downlink shared channel PDSCH signal are detected in the target channel A channel is idle, 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.
An electronic device, comprising the channel quality detection terminal according to any one of claims 1-14.