CN114531173B - Multi-antenna frequency division duplex mode terminal receiving sensitivity optimization method and device and terminal equipment - Google Patents
Multi-antenna frequency division duplex mode terminal receiving sensitivity optimization method and device and terminal equipment Download PDFInfo
- Publication number
- CN114531173B CN114531173B CN202210356989.4A CN202210356989A CN114531173B CN 114531173 B CN114531173 B CN 114531173B CN 202210356989 A CN202210356989 A CN 202210356989A CN 114531173 B CN114531173 B CN 114531173B
- Authority
- CN
- China
- Prior art keywords
- signal
- main set
- antenna
- noise ratio
- path
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0825—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with main and with auxiliary or diversity antennas
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radio Transmission System (AREA)
Abstract
A method and a device for optimizing the receiving sensitivity of a multi-antenna frequency division duplex mode terminal are provided, wherein the method comprises the following steps: detecting the current signal transmitting power in real time; if the signal transmitting power is larger than the set power threshold, respectively calculating the signal-to-noise ratio of the main set single-way signal of the receiving end and the signal-to-noise ratio of the diversity single-way signal; determining a main set receiving path meeting a turn-off condition according to the signal-to-noise ratio of the main set single-path signal and the signal-to-noise ratio of the diversity single-path signal; and turning off signals of the main set receiving channels meeting the turn-off condition. By utilizing the scheme, the influence of the self-interference phenomenon on normal communication of the terminal equipment can be reduced, and the communication quality is improved.
Description
Technical Field
The application relates to the technical field of communication, in particular to a method and a device for optimizing receiving sensitivity of a multi-antenna frequency division duplex mode terminal and terminal equipment.
Background
Frequency division duplex (Frequency Division Duplexing, FDD) refers to that uplink and downlink transmissions are respectively performed on different frequencies, and the core of the radio frequency front end architecture of the communication system in the frequency division duplex mode is to combine and separate uplink and downlink signals through a transceiver duplexer. Existing frequency division duplex mode terminal devices typically have two antennas, a main set antenna and a diversity antenna. Wherein the main set antenna is used for transmitting and receiving, and the diversity antenna is only used for receiving. The diversity reception is mainly to counteract the influence of fast fading on the received signals, the receiving end receives signals of different paths simultaneously by utilizing multiple antennas, and then selects and combines the signals into a total signal so as to reduce the influence of signal fading and greatly improve the reliability under the transmission of multipath fading channels. Because the main set antenna has the functions of transmitting and receiving and has the self-interference attribute, in order to overcome the self-interference attribute, the radio frequency amplifier is required to have good linearity, the duplexer has good isolation between the receiving frequency and the transmitting frequency, and the impedance matching is designed better. In addition, in the aspect of the frequency spectrum of uplink transmission, special constraint is needed to be carried out on the uplink transmission frequency spectrum of a frequency band with a part of the receiving and transmitting frequency ranges being relatively close, so that the receiving sensitivity performance of the system is improved.
When the terminal equipment designed based on the multiple receiving and transmitting antennas works in the frequency division duplex mode, the transmitting power can be increased as much as possible in the real network weak field environment so as to access the base station to establish connection and transmit data. The self-interference phenomenon is serious when the antenna responsible for receiving and transmitting work transmits high power, and the spurious signals on the sideband of the transmitting signal, especially the spurious signals falling into the receiving frequency band, cannot be well removed due to the performance factor or aging of the duplexer, so that the normal communication of the terminal equipment can be influenced, and even the connection disconnection between the terminal equipment and the base station can be caused.
Disclosure of Invention
The embodiment of the application provides a method and a device for optimizing the receiving sensitivity of a multi-antenna frequency division duplex mode terminal, so as to reduce the influence of self-interference on normal communication of the terminal equipment and improve the communication quality.
In order to solve the technical problems, the embodiment of the application provides the following technical scheme:
in one aspect, an embodiment of the present application provides a method for optimizing receiving sensitivity of a multi-antenna frequency division duplex mode terminal, where the method includes:
detecting the current signal transmitting power in real time;
if the signal transmitting power is larger than the set power threshold, respectively calculating the signal-to-noise ratio of each main set single-way signal and the signal-to-noise ratio of each diversity single-way signal of the receiving end;
determining a main set receiving path meeting a turn-off condition according to the signal-to-noise ratio of the main set single path signal and the signal-to-noise ratio of each diversity single path signal, wherein the turn-off condition is that the signal of the main set receiving path is weak and can influence the combined data;
and turning off signals of the main set receiving channels meeting the turn-off condition.
Optionally, the determining the main set receiving path meeting the turn-off condition according to the signal-to-noise ratio of the main set single-path signal and the signal-to-noise ratio of each diversity single-path signal includes: and if the signal-to-noise ratio of the main set single-way signal is smaller than the minimum demodulation threshold, determining that a main set receiving channel corresponding to the main set single-way signal meets a turn-off condition.
Optionally, the determining the main set receiving path meeting the turn-off condition according to the signal-to-noise ratio of the main set single-path signal and the signal-to-noise ratio of each diversity single-path signal includes:
if the signal-to-noise ratio of the main set single-way signal is close to the minimum demodulation threshold, determining the minimum value in the signal-to-noise ratio of each diversity single-way signal;
if the signal-to-noise ratio of the main set single-way signal is smaller than the minimum value, calculating a difference value between the minimum value and the signal-to-noise ratio of the main set single-way signal; and if the difference value is larger than a set threshold value, determining that a main set receiving channel corresponding to the main set single channel signal meets a turn-off condition.
Optionally, the method further comprises: reading a port configuration list after starting up, and controlling a main set antenna connected with a receiving end according to the port configuration list; the signal for turning off the main set receiving path meeting the turn-off condition comprises: and rewriting configuration parameters of a main set receiving path meeting the turn-off condition in the port configuration list to obtain a new port configuration list, and controlling a main set antenna connected with a receiving end according to the new port configuration list.
Optionally, the antenna of the multi-antenna frequency division duplex mode terminal includes any one of the following:
one antenna is a main set antenna, and the other antenna is a diversity antenna;
one antenna is a main set antenna, and the other three antennas are diversity antennas;
four antennas, wherein two antennas are main set antennas, and the other two antennas are diversity antennas.
Optionally, the method further comprises: if the signal transmit power is less than or equal to a set power threshold, optionally, the port configuration list is restored or maintained.
On the other hand, the embodiment of the application also provides a device for optimizing the receiving sensitivity of the multi-antenna frequency division duplex mode terminal, which comprises:
the power detection module is used for detecting the current signal transmitting power in real time;
the signal-to-noise ratio calculation module is used for calculating the signal-to-noise ratio of each main set single-way signal and the signal-to-noise ratio of each diversity single-way signal of the receiving end respectively under the condition that the signal transmitting power is larger than a set power threshold value;
the judging module is used for determining a main set receiving path meeting a turn-off condition according to the signal-to-noise ratio of the main set single path signal and the signal-to-noise ratio of each diversity single path signal, wherein the turn-off condition refers to that the signal of the main set receiving path is weak and can influence the combined data;
and the control module is used for switching off the signals of the main set receiving paths meeting the switching-off condition.
Optionally, the determining module is specifically configured to determine that the main set receiving path corresponding to the main set single path signal meets the turn-off condition when the signal-to-noise ratio of the main set single path signal is less than a minimum value in the signal-to-noise ratio of the diversity single path signal.
Optionally, the apparatus further comprises: the configuration module is used for reading a port configuration list after the power-on and controlling a main set antenna connected with the receiving end according to the port configuration list; the control module is specifically configured to rewrite configuration parameters of a main set receiving path meeting a shutdown condition in the port configuration list to obtain a new port configuration list; the configuration module is further configured to control a main set antenna connected to the receiving end according to the new port configuration list.
Optionally, the antenna of the multi-antenna frequency division duplex mode terminal includes any one of the following:
one antenna is a main set antenna, and the other antenna is a diversity antenna;
one antenna is a main set antenna, and the other three antennas are diversity antennas;
four antennas, wherein two antennas are main set antennas, and the other two antennas are diversity antennas.
Optionally, the control module is further configured to restore or maintain the port configuration list when the signal transmission power is less than or equal to a set power threshold.
On the other hand, the embodiment of the application also provides a multi-antenna frequency division duplex mode terminal device, which comprises the receiving sensitivity optimizing device.
In another aspect, embodiments of the present application also provide a computer readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, having stored thereon a computer program which, when executed by a processor, causes the method described above to be performed.
On the other hand, the embodiment of the application also provides a multi-antenna frequency division duplex mode terminal receiving sensitivity optimizing device, which comprises a memory and a processor, wherein the memory stores a computer program capable of running on the processor, and the processor enables the method to be executed when running the computer program.
According to the method and the device for optimizing the receiving sensitivity of the multi-antenna frequency division duplex mode terminal, under the condition that the signal transmitting power is larger than the set power threshold, in order to avoid the influence of self-interference noise generated by the main set antenna channel on the receiving sensitivity of the signal, the strength of the main set single-channel signal is judged, and under the condition that the main set signal is extremely weak and can influence the combined data, the corresponding signal of the main set receiving channel is turned off, so that the receiving sensitivity of the terminal equipment is optimized, and the communication stability of the terminal equipment is improved.
By using the method and the device for optimizing the receiving sensitivity of the multi-antenna frequency division duplex mode terminal, the effect can be achieved under the condition that the existing hardware design of the terminal equipment is not changed.
Drawings
Fig. 1 is a flowchart of a method for optimizing a receiving sensitivity of a multi-antenna frequency division duplex mode terminal according to an embodiment of the present application;
fig. 2 is a schematic diagram of signal transmission and reception in a terminal device to which the method for optimizing the reception sensitivity of a multi-antenna frequency division duplex mode terminal according to the embodiment of the present application is applied;
fig. 3 is a schematic diagram of a control principle of a main set path of a receiving port in an embodiment of the present application;
fig. 4 is another flowchart of a method for optimizing the reception sensitivity of a multi-antenna frequency division duplex mode terminal according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a receiving sensitivity optimizing device of a multi-antenna frequency division duplex mode terminal according to an embodiment of the present application;
fig. 6 is another structural schematic diagram of a receiving sensitivity optimizing device of a multi-antenna frequency division duplex mode terminal according to an embodiment of the present application.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below.
The multi-antenna design is mainly used for overcoming multipath fading, the receiving end simultaneously receives signals of different paths by utilizing the multi-antenna, and then the signals are selected and combined into a total signal so as to reduce the influence of the signal fading. As there may be a weak field in a real network environment: the main set antenna has the maximum transmitting power, at this time, the signal of the main set receiving channel is weaker than the signal of the diversity receiving channel, the signal received by the diversity receiving channel can be demodulated normally, but the signal intensity received by the main set receiving channel is weaker relatively, and the self-interference noise transmitted through the transmitting end TX of the duplexer and entering the receiving end RX is quite large.
Accordingly, the ideal combining sensitivity is calculated as follows:
Rx_total＝Rx_max-10*log(1+(Rx_max/Rx_min))
wherein Rx_total is the final receiving sensitivity, rx_min is the path with low power in the receiving sensitivity, and Rx_max is the path with high power in the receiving sensitivity.
Even though the gain can be provided to the overall reception sensitivity in most cases by the above theoretical calculation, this is only an estimation performed without considering that the processing of the signal by the decoding module after the data combination is technically limited. In order to ensure the reliability of the combining algorithm, the difference between the strength and the Signal-to-Noise Ratio (SNR) of the received signals of the two-path antennas cannot be too large, and if the difference is too large, the receiving sensitivity of the two-path antennas after data combination is even lower than the performance of a single antenna with better Signal only turned on.
Noise sources causing such phenomena include noise of the transmission signal falling into the reception frequency band, i.e. self-interference noise, and noise caused by degradation of the isolation index of the transmission end TX and the reception end RX due to aging or slight damage of the diplexer, and noise caused by degradation of the frequency spectrum of the output signal due to aging or slight damage of the power amplifier of the transmission signal.
In addition, noise inputted from the outside causes similar problems in addition to self-interference noise. At present, the miniaturization requirement of terminal equipment is high, in order to use the space of a printed circuit board as little as possible, the wiring of radio frequency analog signals is often close to the wiring of digital signals, power supplies carrying noise or other digital or analog signals with higher power, and when a circuit is designed, the isolation between systems is done as far as possible, but under the special scenes of prolonging the service life or high-load operation of a module, the signals are distorted or the signal generator is aged, and noise which interferes with a receiving frequency band is also foreseeable. When the interference signal level to which the receiving channel is coupled is too high, the receiving sensitivity of the channel naturally also deteriorates.
Terminal devices with the above problems often have performance that can meet the corresponding standards but cannot reach the link budget level. The link budget level is usually the performance calculated based on a thermal noise formula, a hardware design link insertion loss and the like, is the performance that the terminal device needs to achieve in an actual link environment, and is usually higher than the corresponding standard.
For the above problem, if only single diversity data is used, it is common in the prior art to close the DFE (digital Front End) of the main set. In this case, since there is no digital gain, noise is more difficult to separate, and when a noise signal is decoded as a normal reception signal, erroneous data is obtained, and after the noise signal is combined with a diversity decoding signal, data which can be demodulated by diversity reception is weakened in turn, so that errors are caused, and terminal disconnection is easily caused.
Therefore, the embodiment of the application provides a method and a device for optimizing the receiving sensitivity of a multi-antenna frequency division duplex mode terminal, which are used for effectively improving the receiving sensitivity of the terminal equipment and the stability of communication by judging the intensity of a main set signal and turning off the signal of a corresponding main set receiving channel under the condition that the main set signal is extremely weak and can influence the merging data under the condition that the existing hardware design of the terminal equipment is not changed.
Fig. 1 is a flowchart of a method for optimizing the receiving sensitivity of a multi-antenna frequency division duplex mode terminal according to an embodiment of the present application. The method comprises the following steps:
in step 101, the terminal device detects the current signal transmission power in real time.
The current signal transmit power may be derived from configuration parameters of the terminal device.
In step 102, if the signal transmitting power is greater than the set power threshold, the signal-to-noise ratio of the main set single-path signal of the receiving end and the signal-to-noise ratio of the diversity single-path signal are calculated respectively.
The power threshold may be determined according to a simulation test or an empirical value, which is not limited in this embodiment of the present application.
The signal-to-noise ratio of the single-path signal can be calculated by adopting some existing calculation methods, and the embodiment of the application is not limited.
In step 103, a main set receiving path meeting the turn-off condition is determined according to the signal-to-noise ratio of the main set single-path signal and the signal-to-noise ratio of the diversity single-path signal.
For example, if the signal-to-noise ratio of the primary set single-path signal is smaller than the minimum demodulation threshold, it is determined that the primary set receiving path corresponding to the primary set single-path signal meets the turn-off condition.
For another example, if the signal-to-noise ratio of the primary set single-path signal approaches the minimum demodulation threshold, the approach to the minimum demodulation threshold means that although the signal-to-noise ratio is not lower than the minimum demodulation threshold, the difference between the signal-to-noise ratio of the primary set single-path signal and the minimum demodulation threshold is smaller than a set value, in this case, it is still necessary to see whether the signal-to-noise ratio of the primary set single-path signal is significantly smaller than the signal-to-noise ratio of the diversity single-path signal, for example, the minimum value in the signal-to-noise ratio of each diversity single-path signal is selected, if the signal-to-noise ratio of the primary set single-path signal is smaller than the minimum value, this indicates that the corresponding useful signal of the primary set path is almost completely submerged by noise, in this case, if the received signal of the primary set path is combined with the received signal of the diversity path, the received sensitivity is degraded, and even the received performance of the diversity path is lower than that only turned on; and the signal data of the main set channel is abandoned, so that diversity receiving data cannot be affected, and the problem of unstable communication in special scenes can be solved. Thus, in this case, it may be considered to turn off the signal of the main set reception path; of course, in this case, a difference between the minimum value and the signal-to-noise ratio of the primary set single-path signal may also be calculated, and if the difference is greater than a set threshold, it is determined that the primary set receiving path corresponding to the primary set single-path signal satisfies the off condition.
In practical applications, determining the main set receiving path that satisfies the off condition is not limited to the above-described methods. Other ways are possible according to application requirements, and the embodiments of the present application are not limited.
At step 104, signals of the main set reception path satisfying the off condition are turned off.
The types of antennas supported by the multi-antenna frequency division duplex mode terminal described in the present application may be various, for example, but not limited to, any one of the following:
one antenna is a main set antenna, and the other antenna is a diversity antenna;
one antenna is a main set antenna, and the other three antennas are diversity antennas;
four antennas, wherein two antennas are main set antennas, and the other two antennas are diversity antennas.
In addition, the multi-antenna frequency division duplex mode terminal described in the present application should support at least 2 cellular communication frequency bands, and support frequency division multiple access system communication, for example: WCDMA (Wideband Code Division Multiple Access ), FDD-LTE (Frequency Division Duplexing-Long Term Evolution, frequency division duplex-long term evolution), FDD-NR (Frequency Division Duplexing-New Radio, frequency division duplex-New Radio), and the like.
Referring to fig. 2, fig. 2 is a schematic diagram of signal transmission and reception in a terminal device to which the method for optimizing reception sensitivity of a multi-antenna frequency division duplex mode terminal according to the embodiment of the present application is applied.
In this example, signal transmission and reception are based on a general terminal radio frequency circuit, and signal reception of different signal paths is controlled by a multi-way switch, that is, connection or disconnection of each path is controlled by a multi-way switch. The solid line in fig. 2 shows a single band operation circuit schematic in the terminal, and the dotted line shows the end-to-end circuit switching result.
The following describes the control principle of the receive port main set path shutdown in the embodiment of the present application with reference to fig. 3.
Referring to fig. 3, in this example, the terminal device has two antennas, one main set antenna 310 and one diversity antenna 320.
The high-frequency modulation signal transmitted by the transmission modulation module 411 is amplified by the amplifier 600 and then transmitted to the main set antenna 310 via the amplifier multiplexing switch 511, the duplexer 510, and the main set antenna switch 311.
The high frequency modulated signal received from the main set antenna 310 is transferred to the main set reception demodulation module 412 via the main set antenna switch 311, the duplexer 510, and the main set reception multiplexing switch 512.
The high-frequency modulated signal received from the diversity antenna 320 is transmitted to the diversity reception demodulation module 421 via the diversity antenna switch 523, the reception filter 520, and the diversity reception multiplexing switch 521.
The main set receiving multiplexing switch 512 and the diversity receiving multiplexing switch 521 are used to connect the corresponding receiving ports to the main set antenna 310 and the diversity antenna 320, that is, to connect the corresponding paths to receive signals from the main set antenna and the diversity antenna, respectively. If the signal-to-noise ratio of a certain main set single-way is low, the connection between the receiving port and the corresponding main set single-way can be disconnected through the main set receiving multiplexing switch 512.
In general, signals of which ports the receiving end needs to receive are determined by the corresponding port configuration list, and different receiving paths may be configured by different frequency bands. The port configuration list is stored in a port configuration register, the port configuration list is read after the terminal equipment is started, and a main set antenna connected with the receiving end is controlled according to the port configuration list.
Accordingly, in the step 104, the purpose of turning off the signal of the main set receiving path meeting the turn-off condition may be achieved by rewriting the configuration parameters of the main set receiving path meeting the turn-off condition in the port configuration list. Because each frequency band has only one channel, the channels of different frequency bands cannot be shared, in actual control, the main set receiving channel can be changed from the current working frequency band to the corresponding other working frequency bands, so as to shut off the main set receiving channel, correspondingly, the configuration parameters of the main set receiving channel are modified to obtain a new port configuration list, and the main set antenna connected with the receiving end is controlled according to the new port configuration list.
It should be noted that, in a specific application, after modifying the port configuration list to obtain a new port configuration list and writing the new port configuration list into a corresponding port configuration register, it is necessary to trigger a port configuration operation, that is, to read the configuration register, and receive a receiving signal of a main set path connected to a receiving port according to the new port configuration list.
Fig. 4 is another flowchart of a method for optimizing the receiving sensitivity of the multi-antenna frequency division duplex mode terminal according to the embodiment of the present application.
In step 401, after the terminal device is started, a port configuration list is read, and a main set antenna connected with a receiving end is controlled according to the port configuration list.
In step 402, the current signal transmit power is detected in real time.
In step 403, determining whether the signal transmission power is greater than a set power threshold; if so, then step 404 is performed; otherwise, step 407 is performed.
In step 404, the signal-to-noise ratio of the receiving end main set single-path signal and the signal-to-noise ratio of the diversity single-path signal are calculated respectively.
In step 405, a primary set receive path that satisfies a shutdown condition is determined according to the signal-to-noise ratio of the primary set single-path signal and the signal-to-noise ratio of the diversity single-path signal.
In step 406, the configuration parameters of the main set receiving path meeting the off condition in the port configuration list are rewritten to obtain a new port configuration list, and the main set antenna connected with the receiving end is controlled according to the new port configuration list.
In step 407, the port configuration list is restored or maintained.
If the original port configuration list is rewritten, the original port configuration list needs to be restored, and then step 401 is performed; if not, the port configuration list is kept on, in which case it is not necessary to return to step 401, but to step 402, and the current signal transmit power is continuously detected.
The multi-antenna frequency division duplex mode terminal receiving sensitivity optimization method provided by the embodiment of the application can be used for measuring the noise intensity introduced by the FDD radio frequency channel except the self-interference, and can distinguish other interference from the self-interference so as to improve the research, development and design quality of a terminal product. Moreover, the method can be used under the condition of a real network, so that the influence of the self-interference phenomenon on the normal communication of the terminal equipment can be reduced, the communication quality is improved, and particularly, the performance of the terminal equipment can be effectively improved when the terminal equipment is in a weak signal environment.
Correspondingly, the embodiment of the application also provides a device for optimizing the receiving sensitivity of the multi-antenna frequency division duplex mode terminal, and the device is a structural schematic diagram as shown in fig. 5.
In this embodiment, the multi-antenna frequency division duplex mode terminal receiving sensitivity optimizing apparatus 50 includes the following modules:
a power detection module 51, configured to detect the current signal transmission power in real time;
the signal-to-noise ratio calculation module 52 is configured to calculate a signal-to-noise ratio of the main set single-path signal and a signal-to-noise ratio of the diversity single-path signal of the receiving end respectively, when the signal transmission power is greater than a set power threshold;
a judging module 53, configured to determine a main set receiving path that meets a shutdown condition according to a signal-to-noise ratio of the main set single-path signal and a signal-to-noise ratio of the diversity single-path signal;
a control module 54 for switching off the signals of the main set receiving paths meeting the switch-off condition.
In a specific application, the judging module 53 may determine the main set receiving path that meets the turn-off condition in a plurality of ways, and specifically reference may be made to the description in the foregoing embodiment of the method for optimizing the receiving sensitivity of the multi-antenna frequency division duplex mode terminal in this application, which is not described herein again.
Fig. 6 is a schematic diagram of another structure of a receiving sensitivity optimizing device of a multi-antenna frequency division duplex mode terminal according to an embodiment of the present application.
Unlike the embodiment shown in fig. 5, in this embodiment, the apparatus 50 further comprises: the configuration module 55 is configured to read the port configuration list after power-on, and control the main set antenna connected to the receiving end according to the port configuration list.
Accordingly, in this embodiment, the control module 54 is specifically configured to rewrite the configuration parameters of the main set receiving paths that satisfy the off condition in the port configuration list, so as to obtain a new port configuration list.
Accordingly, in this embodiment, the configuration module 55 is further configured to control a main set antenna connected to the receiving end according to the new port configuration list.
Further, in another non-limiting embodiment of the multi-antenna frequency division duplex mode terminal receiving sensitivity optimizing apparatus of the present application, the control module 54 may further restore or maintain the port configuration list if the signal transmitting power is less than or equal to the set power threshold.
For the specific implementation manner of each module in the above-mentioned multi-antenna frequency division duplex mode terminal receiving sensitivity optimizing device, reference may be made to the foregoing description in the method embodiment of the present application, and no further description is given here.
According to the multi-antenna frequency division duplex mode terminal receiving sensitivity optimization method and device, under the condition that the signal transmitting power is larger than the set power threshold, in order to avoid the influence of self-interference noise generated by the main set antenna channel on the signal receiving sensitivity, the signal of the corresponding main set receiving channel is turned off by judging the strength of the main set single channel signal and under the condition that the main set signal is extremely weak and can influence the combined data, so that the receiving sensitivity of the terminal equipment is optimized, that is, in the actual use process of the terminal, the signal which can be analyzed is not close to the sensitivity, and the communication stability of the terminal equipment is improved.
Tests show that by using the scheme, the receiving sensitivity of the terminal equipment can be optimized by 2-3 dB, the error rate is reduced by 50% under the limit condition, and the communication stability can be greatly improved.
By using the method and the device for optimizing the receiving sensitivity of the multi-antenna frequency division duplex mode terminal, the effect can be achieved under the condition that the existing hardware design of the terminal equipment is not changed.
The scheme provided by the embodiment of the application can be applied to mobile communication terminal equipment, such as mobile phones, intelligent watches and other products, and can assist in the research and development design stage to carry out noise analysis and performance test on each antenna.
Correspondingly, the embodiment of the application also provides multi-antenna frequency division duplex mode terminal equipment, which comprises the receiving sensitivity optimizing device.
The terminal in the embodiments of the present application may also be referred to as a terminal device, and may refer to various types of terminal devices, such as a user device, an access terminal, a user unit, a user Station, a Mobile Station (MS), a remote Station, a remote terminal, a Mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc., as the embodiments of the application are not limited in this respect.
In a specific implementation, the above-mentioned multi-antenna frequency division duplex mode terminal receiving sensitivity optimizing device may correspond to a Chip with a corresponding function in the network device and/or the terminal device, for example, an SOC (System-On-a-Chip), a baseband Chip, a Chip module, and the like.
In a specific implementation, regarding each apparatus and each module/unit included in each product described in the above embodiments, it may be a software module/unit, or a hardware module/unit, or may be a software module/unit partially, or a hardware module/unit partially.
For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal, each module/unit included in the device, product, or application may be implemented by using hardware such as a circuit, different modules/units may be located in the same component (for example, a chip, a circuit module, or the like) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program, where the software program runs on a processor integrated inside the terminal, and the remaining (if any) part of the modules/units may be implemented by using hardware such as a circuit.
Embodiments of the present application also provide a computer readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, on which a computer program is stored, which when executed by a processor, performs the steps in the above-described method embodiments.
The embodiment of the application also provides a multi-antenna frequency division duplex mode terminal receiving sensitivity optimizing device, which comprises a memory and a processor, wherein the memory stores a computer program which can be operated on the processor, and the processor executes the steps in the method embodiments when the processor operates the computer program.
It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In this context, the character "/" indicates that the front and rear associated objects are an "or" relationship.
The term "plurality" as used in the embodiments herein refers to two or more.
The first, second, etc. descriptions in the embodiments of the present application are only used for illustrating and distinguishing the description objects, and no order division is used, nor does it indicate that the number of the devices in the embodiments of the present application is particularly limited, and no limitation on the embodiments of the present application should be construed.
Embodiments provided herein may be implemented, in whole or in part, by software, hardware, firmware, or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the processes or functions described in accordance with the embodiments of the present application are all or partially produced. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center by wired or wireless means. It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.
In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus, and system may be implemented in other manners. For example, the device embodiments described above are merely illustrative; for example, the division of the units is only one logic function division, and other division modes can be adopted in actual implementation; for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may be physically disposed separately, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.
Although the present application is disclosed above, the present application is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention shall be defined by the appended claims.
Claims (14)
1. A method for optimizing the reception sensitivity of a multi-antenna frequency division duplex mode terminal, the method comprising:
detecting the current signal transmitting power in real time;
if the signal transmitting power is larger than the set power threshold, respectively calculating the signal-to-noise ratio of each main set single-way signal and the signal-to-noise ratio of each diversity single-way signal of the receiving end;
determining a main set receiving path meeting a turn-off condition according to the signal-to-noise ratio of the main set single path signal and the signal-to-noise ratio of each diversity single path signal, wherein the turn-off condition is that the signal of the main set receiving path is weak and can influence the combined data;
and turning off signals of the main set receiving channels meeting the turn-off condition.
2. The method of claim 1, wherein said determining a primary set of receive paths that satisfy a turn-off condition based on the signal-to-noise ratio of the primary set of single-path signals and the signal-to-noise ratio of each diversity single-path signal comprises:
and if the signal-to-noise ratio of the main set single-way signal is smaller than the minimum demodulation threshold, determining that a main set receiving channel corresponding to the main set single-way signal meets a turn-off condition.
3. The method of claim 1, wherein said determining a primary set of receive paths that satisfy a turn-off condition based on the signal-to-noise ratio of the primary set of single-path signals and the signal-to-noise ratio of each diversity single-path signal comprises:
if the signal-to-noise ratio of the main set single-way signal is close to the minimum demodulation threshold, determining the minimum value in the signal-to-noise ratio of each diversity single-way signal;
if the signal-to-noise ratio of the main set single-way signal is smaller than the minimum value, calculating a difference value between the minimum value and the signal-to-noise ratio of the main set single-way signal; and if the difference value is larger than a set threshold value, determining that a main set receiving channel corresponding to the main set single channel signal meets a turn-off condition.
4. The method according to claim 1, wherein the method further comprises:
reading a port configuration list after starting up, and controlling a main set antenna connected with a receiving end according to the port configuration list;
the signal for turning off the main set receiving path meeting the turn-off condition comprises:
and rewriting configuration parameters of a main set receiving path meeting the turn-off condition in the port configuration list to obtain a new port configuration list, and controlling a main set antenna connected with a receiving end according to the new port configuration list.
5. The method of claim 1, wherein the antenna of the multi-antenna frequency division duplex mode terminal comprises any one of:
one antenna is a main set antenna, and the other antenna is a diversity antenna;
one antenna is a main set antenna, and the other three antennas are diversity antennas;
four antennas, wherein two antennas are main set antennas, and the other two antennas are diversity antennas.
6. The method according to claim 4, wherein the method further comprises:
and if the signal transmitting power is smaller than or equal to the set power threshold value, restoring or maintaining the port configuration list.
7. A multi-antenna frequency division duplex mode terminal reception sensitivity optimizing apparatus, the apparatus comprising:
the power detection module is used for detecting the current signal transmitting power in real time;
the signal-to-noise ratio calculation module is used for calculating the signal-to-noise ratio of each main set single-way signal and the signal-to-noise ratio of each diversity single-way signal of the receiving end respectively under the condition that the signal transmitting power is larger than a set power threshold value;
the judging module is used for determining a main set receiving path meeting a turn-off condition according to the signal-to-noise ratio of the main set single path signal and the signal-to-noise ratio of each diversity single path signal, wherein the turn-off condition refers to that the signal of the main set receiving path is weak and can influence the combined data;
and the control module is used for switching off the signals of the main set receiving paths meeting the switching-off condition.
8. The apparatus of claim 7, wherein the device comprises a plurality of sensors,
the judging module is specifically configured to determine that a main set receiving path corresponding to the main set single-path signal meets an off condition when a signal-to-noise ratio of the main set single-path signal is smaller than a minimum value in the signal-to-noise ratio of the diversity single-path signal.
9. The apparatus of claim 7, wherein the apparatus further comprises:
the configuration module is used for reading a port configuration list after the power-on and controlling a main set antenna connected with the receiving end according to the port configuration list;
the control module is specifically configured to rewrite configuration parameters of a main set receiving path meeting a shutdown condition in the port configuration list to obtain a new port configuration list;
the configuration module is further configured to control a main set antenna connected to the receiving end according to the new port configuration list.
10. The apparatus of claim 7, wherein the antenna of the multi-antenna frequency division duplex mode terminal comprises any one of:
one antenna is a main set antenna, and the other antenna is a diversity antenna;
one antenna is a main set antenna, and the other three antennas are diversity antennas;
four antennas, wherein two antennas are main set antennas, and the other two antennas are diversity antennas.
11. The apparatus of claim 9, wherein the device comprises a plurality of sensors,
the control module is further configured to restore or maintain the port configuration list when the signal transmission power is less than or equal to a set power threshold.
12. A multi-antenna frequency division duplex mode terminal device, characterized in that the terminal device comprises a reception sensitivity optimization means according to any of claims 7 to 11.
13. A computer readable storage medium, being a non-volatile storage medium or a non-transitory storage medium, having stored thereon a computer program, characterized in that the computer program, when being executed by a processor, causes the method of any of claims 1 to 6 to be performed.
14. A multi-antenna frequency division duplex mode terminal device reception sensitivity optimization apparatus comprising a memory and a processor, the memory having stored thereon a computer program executable on the processor, characterized in that the processor, when executing the computer program, causes the method of any of claims 1 to 6 to be performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210356989.4A CN114531173B (en) | 2022-04-06 | 2022-04-06 | Multi-antenna frequency division duplex mode terminal receiving sensitivity optimization method and device and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210356989.4A CN114531173B (en) | 2022-04-06 | 2022-04-06 | Multi-antenna frequency division duplex mode terminal receiving sensitivity optimization method and device and terminal equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114531173A CN114531173A (en) | 2022-05-24 |
| CN114531173B true CN114531173B (en) | 2023-06-23 |
Family
ID=81627762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210356989.4A Active CN114531173B (en) | 2022-04-06 | 2022-04-06 | Multi-antenna frequency division duplex mode terminal receiving sensitivity optimization method and device and terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114531173B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107645327A (en) * | 2017-08-30 | 2018-01-30 | 努比亚技术有限公司 | Multiple antennas management method, multi-antenna terminal and computer-readable recording medium |
| CN107994930A (en) * | 2017-11-24 | 2018-05-04 | 上海与德科技有限公司 | Antenna switching system and mobile terminal |
| CN108200603B (en) * | 2017-12-27 | 2020-05-08 | Oppo广东移动通信有限公司 | Communication method, terminal and storage medium |
| CN108377162B (en) * | 2018-02-13 | 2021-01-26 | Oppo广东移动通信有限公司 | Antenna control method, antenna control device, storage medium and electronic equipment |
| CN109743443B (en) * | 2018-12-19 | 2021-01-26 | 努比亚技术有限公司 | Terminal control method, terminal and computer readable storage medium |
| CN111654316B (en) * | 2020-05-22 | 2022-01-07 | Oppo广东移动通信有限公司 | Antenna switching method and device, storage medium and electronic equipment |
-
2022
- 2022-04-06 CN CN202210356989.4A patent/CN114531173B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114531173A (en) | 2022-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109040371B (en) | Radio frequency system and related product | |
| US8160510B2 (en) | Transmitter/receiver circuit and transmission/reception method | |
| US7702360B2 (en) | Communication system equipped with a shared antenna and expansion card thereof | |
| KR101836199B1 (en) | Multi-mode wireless terminal | |
| CN108833701B (en) | Antenna control method, antenna system and terminal | |
| CN109802693B (en) | Electronic equipment and radio frequency signal transceiving method | |
| US20130165057A1 (en) | Rf transmission circuit and electronic device and method for saving power thereof | |
| US8462754B2 (en) | Antenna sharing for radio frequency signals in same frequency bands | |
| US9813923B2 (en) | Duplex mode adaptive method and apparatus | |
| US10028222B2 (en) | Apparatus and method for controlling power in a communication system | |
| US7340234B2 (en) | UWB transmitting and receiving device for removing an unnecessary carrier component in a transmission signal spectrum | |
| CN113114300B (en) | Electronic equipment and control method | |
| CN114531173B (en) | Multi-antenna frequency division duplex mode terminal receiving sensitivity optimization method and device and terminal equipment | |
| US9380527B2 (en) | Method for reducing the energy consumption in a wireless communication terminal and communication terminal implementing said method | |
| CN112737628A (en) | Radio frequency circuit and electronic device | |
| CN115001513B (en) | Radio frequency system, detection method and wireless communication device | |
| CN113078961B (en) | Detection method and detection device for electronic equipment test state | |
| CN112583500B (en) | Fault detection system and method based on microwave radio frequency loopback | |
| CN114710180A (en) | Radio frequency processing circuit control method, radio frequency system and wireless communication equipment | |
| KR20010003478A (en) | Rx-amplifier control apparatus in wireless telephone set and method thereof | |
| CN217820881U (en) | Self-adaptive Beidou navigation terminal | |
| CN219459057U (en) | Radio frequency circuit and electronic equipment | |
| CN112202467B (en) | Method, device, equipment and medium for controlling main diversity change-over switch | |
| JP3583098B2 (en) | Mobile phone device, transmission filter limiting method used therefor, and program therefor | |
| US8520720B2 (en) | Spread spectrum communication system, clear channel assessment device and related method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |