CN113067597A - Link processing method and device, electronic equipment and storage medium - Google Patents
Link processing method and device, electronic equipment and storage mediumDownload PDFInfo
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- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
- 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
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- H04B17/102—Power radiated at antenna
- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W24/08—Testing, supervising or monitoring using real traffic
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- H04W76/10—Connection setup
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Abstract
Translated fromChinese
Description
Technical Field
The present application belongs to the field of communications technologies, and in particular, to a link processing method, an apparatus, an electronic device, and a storage medium.
Background
In order to improve the receiving sensitivity of the terminal and enhance the demodulation capability, an ELNA (external Low Noise Amplifier) is added to the terminal to reduce the link Noise coefficient. The structure of ELNA is shown in FIG. 1.
When the antenna terminal receives a good signal, the signal passes through a Bypass path of the ELNA. When the antenna terminal receives poor signal quality, the signal passes through an enabling path of the ELNA.
In the process of implementing the present application, the inventor finds that at least the following problems exist in the prior art:
when the useful signal strength is too small, ELNA processes the input signal using a higher gain level. However, if the interference signal strength is high, the ELNA is saturated after being processed by the ELNA at a high gain level, and the link is interfered and blocked, so that the link cannot work normally.
Content of application
An object of the embodiments of the present application is to provide a link processing method, an apparatus, an electronic device, and a storage medium, which can solve the problem that a link is interfered and blocked after a strong interference signal is processed in a higher gain state by an external LNA.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a link processing method, which is applied to a wireless communication device, where the wireless communication device includes a processor, a first signal transceiving link, a second signal transceiving link, and an external low noise amplifier, where the first signal transceiving link is connected to the processor, the second signal transceiving link is connected to the processor through the external low noise amplifier, and the external low noise amplifier has an enable mode and a bypass mode, and the method includes:
acquiring signal transmitting power corresponding to the first signal transceiving link and a received signal strength indication corresponding to the second signal transceiving link;
and under the condition that the signal transmitting power is greater than or equal to a first threshold value and the received signal strength indication is less than or equal to a second threshold value, switching the working mode of the external low noise amplifier through a gain level rollback mechanism to enable the second signal transceiving link to work normally.
In a second aspect, an embodiment of the present application provides an apparatus for signal processing, which is applied to a wireless communication device, the wireless communication device includes a processor, a first signal transceiving link, a second signal transceiving link, and an external low noise amplifier, the first signal transceiving link is connected to the processor, the second signal transceiving link is connected to the processor through the external low noise amplifier, the external low noise amplifier has an enable mode and a bypass mode, and the apparatus includes:
an obtaining module, configured to obtain a signal transmitting power corresponding to the first signal transceiving link and a received signal strength indication corresponding to the second signal transceiving link;
and the processing module is used for switching the working mode of the external low noise amplifier through a gain level rollback mechanism under the condition that the signal transmitting power is greater than or equal to a first threshold value and the received signal strength indication is less than or equal to a second threshold value, so that the second signal transceiving link works normally.
In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, the program or instructions implement the steps of the method according to the first aspect.
In a fourth aspect, embodiments of the present application provide a readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the method according to the first aspect.
In a fifth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the first aspect.
In the embodiment of the application, considering the interference of the interference signal, when confirming that the ELNA causes the interference or the blocking due to the interference signal, a gain level backoff mechanism is applied to switch the operating mode of the external low noise amplifier, so that the link normally operates, and the communication quality of the wireless communication device is improved.
Drawings
FIG. 1 is a schematic circuit diagram of an external LNA in the prior art;
FIG. 2 is a flow chart of a link processing method provided herein;
FIG. 3 is a diagram of a prior art EN-DC scenario;
FIG. 4 is a second flowchart of a link processing method provided in the present application;
fig. 5 is a flowchart of the determination of the backoff gain level in the link processing method provided in the present application;
fig. 6 is a flowchart of determining a first threshold in the link processing method provided in the present application;
fig. 7 is a flowchart of second threshold determination in the link processing method provided in the present application;
fig. 8 is a block diagram of a link processing apparatus provided in the present application;
fig. 9 is a hardware configuration diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The link processing method, the link processing apparatus, the electronic device, and the storage medium provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
As shown in fig. 2, an embodiment of the present application provides an information processing method applied to a wireless communication device, where the wireless communication device includes a processor, a first signal transceiving link, a second signal transceiving link, and an external low noise amplifier, the first signal transceiving link is connected to the processor, the second signal transceiving link is connected to the processor through the external low noise amplifier, the external low noise amplifier has an enable mode and a bypass mode,
optionally, the method provided by the embodiment of the present application is applied to a wireless communication device having at least two signal transceiving links. The wireless communication device can be a smart phone, a personal computer, a tablet computer or a wearable smart device and the like. As shown in fig. 3, in an EN-DC (EUTRA-NR Dual Connection, Dual Connection with 4G as a master node and 5G as an auxiliary node), the first signal transceiving link is an LTE (Long Term Evolution) signal transceiving link, and the second signal transceiving link is an NR (New Radio, New air interface) signal transceiving link.
When the network connection of the first signaling link is LTE B3, the network connection of the second signaling link is NR N78. In this network combination, interference is likely to occur, but is not limited to this network combination.
The LTE signal transceiving link comprises an LTE transceiving module and an LTE antenna. The NR signal transceiving link comprises an NR transceiving module and an NR antenna.
When the first signal transceiving link is an NR signal transceiving link and the second signal transceiving link is an LET signal transceiving link, interference may also occur in a certain network combination manner.
In addition, in an LTE inter-band CA (Carrier Aggregation) scenario, both the first signal transceiving link and the second signal transceiving link are LTE signal transceiving links. When the network connection of the first signaling link is LTE B3, the network connection of the second signaling link is LTE B41. In this network combination, interference is likely to occur, but is not limited to this network combination.
When the external low noise amplifier is in an enabling mode, the signal received by the second signal transceiving link passes through an enabling channel of the external low noise amplifier to perform gain processing on the signal.
When the external low noise amplifier is in the bypass mode, the signal received by the second signal transceiving link passes through the bypass path of the external low noise amplifier, and the signal is not subjected to gain processing.
The processor is used for processing the signals received by the first signal transceiving link and the second signal transceiving link.
The method comprises the following steps:step 201, acquiring a signal transmitting power corresponding to the first signal transceiving link and a received signal strength indication corresponding to the second signal transceiving link;
the signal transmitting power corresponding to the first signal transceiving link is the power of the transceiving module in the first signal transceiving link for transmitting signals, and the larger the power is, the higher the strength of the transmitted signals is, and the larger the interference on the first signal transceiving link is.
The Received Signal Strength Indication corresponding to the second Signal transceiving link is RSSI (Received Signal Strength Indication) of a Signal Received by an antenna in the second Signal transceiving link, and the smaller the RSSI, the smaller the Received Signal Strength. At less than a certain level, the smaller the signal strength, the more amplification by the ELNA is required, and thus better receiving performance is obtained.
The wireless communication device obtains the signal transmission power of the signal transmitted by the first signal transceiving link and the RSSI of the signal received by the second signal transceiving link on the wireless communication device. The embodiment of the application is not limited to the specific acquisition mode of the signal transmission power and the RSSI.
For convenience of description, in the embodiment of the present application, a signal transmitted by the first signal transceiving link is taken as an interference signal, and a signal received by the second signal transceiving link is taken as a useful signal.
When the interfering signal and the useful signal pass through the ELNA in the second signal transceiving link at the same time, if the intensity of the interfering signal is large to a certain degree and the intensity of the received signal is small to a certain degree, after the interfering signal and the useful signal are synchronously amplified through the ELNA, the difference between the intensities of the interfering signal and the useful signal can be greatly increased, so that the second signal transceiving link cannot identify the useful signal, is greatly interfered or blocked, and cannot normally work.
The current gain level used by the ELNA is the gain level determined without considering the interfering signal, and can be determined by the strength of the desired signal.
The present embodiment reflects the strength of the interference signal using the signal transmission power of the first signal transceiving link, and reflects the strength of the desired signal using the RSSI of the second signal transceiving link. And under the condition that the signal transmission power of the first signal transceiving link is greater than or equal to a first threshold value and the RSSI of the second signal transceiving link is less than or equal to a second threshold value, the second signal transceiving link is greatly interfered or blocked. The embodiment of the present application is not limited to the confirmation method of the first threshold value and the second threshold value.
The gain level rollback mechanism is used for searching a gain level which is lower than the current gain level and meets a certain condition for the external low-noise amplifier, and switching the working mode of the external low-noise amplifier according to the searching condition, so that the gain processing degree of the useful signal and the interference signal is reduced or the gain processing is not carried out, and compared with the current gain level, the difference between the strengths of the useful signal and the interference signal is reduced, so that the second signal transceiving link can identify the useful signal and normally work.
In the embodiment of the application, the interference of the interference signal is considered, and under the condition that the ELNA is interfered or blocked due to the interference signal, the working mode of the external low-noise amplifier is switched by using a gain level rollback mechanism, so that a link normally works, and the communication quality of the wireless communication equipment is improved.
Optionally, the switching the operating mode of the external low noise amplifier through a gain level backoff mechanism includes: adjusting the external low noise amplifier to a back-off gain level, and switching the adjusted external low noise amplifier to the enable mode or switching the external low noise amplifier to the bypass mode; the backoff gain level is a gain level that is lower than the current gain level used in the ela and satisfies a certain condition, and the lower the gain level is, the smaller the signal amplification degree is.
And under the condition that the second signal transceiving link is greatly interfered or blocked, an ELNA gain level backspacing mechanism is adopted for processing, namely, the ELNA is switched to a backspacing gain level and then an enabling path is used for signal gain processing. Or the useful signal and the interference signal are directly passed through the bypass path of the ELNA.
When signal gain processing is carried out by using an enabling path of the ELNA, a switch in parallel with the LNA in the ELNA is disconnected, and a bypass path is cut off; when the switch is closed, the LNA in the ELNA is short-circuited, the bypass path is closed, and the wanted signal and the interfering signal pass directly through the bypass path.
And under the condition that the signal transmission power of the first signal transceiving link is smaller than a first threshold value or the RSSI of the second signal transceiving link is larger than a second threshold value, the second signal transceiving link is not greatly interfered or blocked. In this case, the ELNA normal mode is used for the processing. Namely, according to the strength of the useful signal received by the second signal transceiving link, the bypass path or the enable path of the ELNA is called by applying the current gain level to perform signal processing.
The embodiment of the application is applied to the design and development stage of the wireless communication equipment, and an ELNA normal mode and an ELNA gain backspacing mode are respectively reserved on software of the wireless communication equipment aiming at a receiving path of a second signal transceiving link needing to be additionally provided with the ELNA.
When the ELNA causes interference or blockage due to insufficient antenna isolation, an ELNA gain level backspacing mechanism is started, the backspacing gain level of the ELNA is called, the ELNA gain is reduced, and greater interference or link blockage is avoided.
And when no interference exists or the interference is small, the current gain level of the ELNA is called, and the link sensitivity is increased. And flexibly configuring the ELNA signal processing mode in the current scene according to the interference condition of the wireless communication terminal.
Wherein the backoff gain level satisfies the following condition: a sensitivity K2 corresponding to the second signaling link when the fallback gain level is applied in the enabled mode is greater than a sensitivity K1 corresponding to the second signaling link when the current gain level is applied in the enabled mode, and the sensitivity K2 is greater than a sensitivity K3 corresponding to the second signaling link in the bypass mode. Sensitivity refers to the minimum signal reception power at which the transceiver module can correctly extract the desired signal.
Due to interference of the interfering signal, in case that the sensitivity K1 corresponding to the second transceiving link when the current gain level is applied in the enable mode is smaller than the sensitivity K3 corresponding to the second transceiving link in the bypass mode, the second transceiving link is greatly interfered or blocked.
To solve this problem, the current gain level is reduced, and the amplification degree of the interference signal and the useful signal is reduced, so that the sensitivity K2 corresponding to the second signal transceiving link is greater than the sensitivity K3 when the reduced gain level is applied in the enable mode, thereby solving the interference or blocking problem.
For different current gain levels, the corresponding backoff gain levels can be found according to the conditions met by the backoff gain levels.
As shown in fig. 4, the signal processing using the elan gain level backoff mechanism includes the following steps:
1. the wireless communication equipment searches and registers a network and establishes connection with a base station;
2. determining whether the current network connection is a preset network connection that may be greatly interfered or blocked, for example, the network connection of the first signaling link L1 is LTE B3, and the network connection of the second signaling link L2 is NR N78; the network connection of the first signal transceiving link is LTE B3, and the network connection of the second signal transceiving link is LTE B41;
if yes, carrying out the next step; if not, the wireless communication equipment maintains the current working state, namely the wireless communication equipment carries out normal signal processing;
3. temporarily maintaining the current working state, and detecting the signal transmitting power value of the first signal transceiving link and the RSSI value of the received signal of the second signal transceiving link;
4. when the signal transmission power of the first signal transceiving link is greater than or equal to a first threshold value b and the RSSI value of the received signal of the second signal transceiving link is less than or equal to a second threshold value d, enabling the ELNA gain level rollback mechanism by the wireless communication equipment;
5. in the communication process of the wireless communication equipment, the working state of the wireless communication equipment is changed in real time, and the signal transmitting power of the first signal transceiving link and the RSSI value of the received signal of the second signal transceiving link are detected in real time, so that the ELNA normal mode and the ELNA gain backspacing mode are selected in time according to the two indexes.
In the embodiment of the application, the interference of the interference signal is considered, and under the condition that the ELNA causes the interference or the blockage due to the interference signal is confirmed, the signal processing is carried out by applying the backspacing gain grade based on the enabling path of the ELNA, the signal gain is reduced, or the signal processing is switched to the bypass path of the ELNA, the link blockage and the interference are avoided, the communication quality of the wireless communication equipment is improved, and the user experience is improved.
Optionally, in this embodiment of the present application, the adjusting the external low noise amplifier to a back-off gain level further includes: reducing the gain level of the external low noise amplifier by a level, and testing the sensitivity K2 corresponding to the second signal transceiving link when the reduced gain level is applied in the enabling mode;
testing a sensitivity K3 corresponding to the second signaling link in the bypass mode if the sensitivity K2 is greater than the sensitivity K1;
taking the reduced gain level as the back-off gain level if the sensitivity K2 is greater than the sensitivity K3.
As shown in fig. 5, the confirmation procedure of the backoff gain level G' of the ela is as follows:
1. and setting the current signal transmission power of the first signal transceiving link L1 to be more than or equal to b, and whether the current RSSI of the second signal transceiving link L2 is less than or equal to d, wherein b is a first threshold value, and d is a second threshold value. In this scenario, the current gain level of the ELNA causes the second signal transceiving link to be greatly interfered or blocked;
2. confirming that the current gain level used by the ELNA is Gn, and testing the sensitivity of the second signal transceiving link when the ELNA applies the current gain level in the enabling mode, and marking the sensitivity as K1;
3. the current gain level of ELNA is backed to the previous level, denoted as Gn-1, testing again the sensitivity of the second signalling link when the ELNA applies the previous level in the enabled mode, denoted as K2;
4. comparing the measured K1 and K2, and if K2 is greater than K1, proceeding to the next step; otherwise, continuing to back off the gain level by one step, and testing the sensitivity K2 of the second signal transceiving link when the ELNA applies the back-off gain level in the enabling mode again, and comparing with K1 until K2 is greater than K1 or the back-off gain level reaches G0；
5. Testing the sensitivity of the ELNA in the second signal transceiving link in the bypass mode, and recording the sensitivity as K3; comparing K2 measured in the previous step with K3, and if K2 is better than K3, marking the gain grade corresponding to K2 as G'; otherwise, repeating the steps 3-5;
6. if no suitable ELNA gain level G is foundn-1Making K2 better than K3, to avoid blocking, the receive path of the ELNA is set to bypass mode, i.e., the bypass path is opened, enabling the path to be shorted.
When the ELNA gain level backspacing mode is started, the backspacing gain level G' is directly called to carry out signal gain processing or directly passes through a bypass path.
For different current gain levels, the corresponding backoff gain levels can be found according to the backoff gain level determination method.
According to the embodiment of the application, the current gain level is stepped back, the back-off gain level meeting the condition is searched, and the ELNA is adjusted to the gain level as large as possible while the blocking or the interference of a link is avoided, so that the useful signal is amplified as large as possible, and the strength of the useful signal is improved.
Optionally, in this embodiment of the present application, the taking the reduced gain level as the backoff gain level further includes: storing the backoff gain level in a Non-Volatile Memory (NV) in the wireless communication device.
Considering that the antenna of the first signal transceiving link and the antenna of the second signal transceiving link in the wireless communication device are fixed in position, the backoff gain level corresponding to the current gain level is not changed. The back-off gain level corresponding to each current gain level is stored in the NV in the wireless communication device. The NV will not lose the stored data even if the NV is powered down, and the original data can still be kept when the NV is restarted next time.
And when the signal transmission power of the LTE B3 detected next time is greater than B and the RSSI of the NR N78 received signal is less than d, directly acquiring a back-off gain level corresponding to the current gain level from NV, adjusting the ELNA from the current gain level to the back-off gain level, and performing signal gain processing by using an enabling path under the back-off gain level.
According to the embodiment of the application, the backoff gain levels corresponding to each current gain level are stored in the NV, so that on one hand, the reliability of the storage of the backoff gain levels is ensured; on the other hand, the backspacing gain level only needs to be calculated once and is directly used by searching later, so that repeated calculation is avoided.
Optionally, in this embodiment of the present application, when the signal transmission power is greater than or equal to a first threshold and the received signal strength indication is less than or equal to a second threshold, switching an operating mode of the external low noise amplifier by using a gain level backoff mechanism, before further including:
acquiring a third threshold value; wherein the third threshold is less than the first threshold;
testing a sensitivity K1 corresponding to the second signaling link when the current gain level is applied in the enabled mode and a sensitivity K3 corresponding to the second signaling link in the bypass mode, if the signal transmission power is greater than a third threshold value;
in the case where the sensitivity K1 is greater than the sensitivity K3, increasing the signal transmission power by a first preset value until the sensitivity K1 is less than or equal to the sensitivity K3;
and taking the signal transmission power corresponding to the sensitivity K1 which is less than or equal to the sensitivity K3 as the first threshold value.
The determination of the first threshold value is related to the action of the first signaling link.
When the signal transmitting power of the first signal transceiving link is small, the influence on the receiving path of the second signal transceiving link is small and can be ignored.
When the signal transmission power of the first signal transceiving link reaches the third threshold value a, the second signal transceiving link may observe interference. a is determined by experiment in advance. After gain processing is carried out through the ENLA enabling path in the second signal transceiving link, the interference signal after gain amplification is far smaller than the useful signal, the sensitivity of the ENLA enabling path is still better than that of the bypass path, and the ELNA is not blocked.
When the signal transmitting power of the first signal transceiving link continues to increase to the first threshold b, the interfering signal entering the receiving path in the second signal transceiving link is amplified by the gain of the ela to be equivalent to the useful signal, the sensitivity of the enable path of the ela is worse than that of the bypass path thereof, i.e. the ela is blocked.
As shown in fig. 6, the first threshold value is determined as follows:
1. setting the network connection of the wireless communication device as a preset network connection which is likely to generate larger interference or blockage, for example, the network connection of the first signal transceiving link is LTE B3, and the network connection of the second signal transceiving link is NR N78;
2. the wireless communication device judges the signal transmitting power of the first signal transceiving link L1, and when the signal transmitting power of the first signal transceiving link is smaller than a third threshold a, the signal transmitting power of the first signal transceiving link is gradually increased according to a first preset value until the signal transmitting power of the first signal transceiving link is larger than the third threshold a, and if the first preset value is 0.5 dB;
3. under the condition that the signal transmission power of the first signal transceiving link is larger than a third threshold value a, the wireless communication equipment respectively tests the sensitivity K1 corresponding to the second signal transceiving link when the ELNA applies the current gain level in the enabling mode and the sensitivity K3 corresponding to the second signal transceiving link in the bypass path;
4. contrast sensitivity K1 and sensitivity K3: if K1 is better than K3, at the moment, the ELNA enabling path is not saturated and can still work normally, and the signal transmitting power of the first signal transceiving link is continuously increased according to the first preset value until K1 is better than K3;
5. if K1 is better than K3, indicating that the ELNA enabled path is saturated, the path is blocked, and the current signal transmission power of the first signal transceiving link is written into NV of the wireless communication device, denoted as b.
The signal transmitting power of the first signal receiving and transmitting link is debugged by comparing the sensitivity corresponding to the ELNA enabling path under the current gain level with the sensitivity corresponding to the bypass path, and the threshold value of the signal transmitting power of the first signal receiving and transmitting link is accurately obtained under the condition that the ELNA enabling path is blocked, so that the blocking scene is accurately judged.
Optionally, in this embodiment of the application, the taking the signal transmission power corresponding to the sensitivity K1 that is less than or equal to the sensitivity K3 as the first threshold further includes:
testing a sensitivity K1 corresponding to the second transceiving link when the current gain level is applied in the enable mode and a sensitivity K3 corresponding to the second transceiving link in the bypass mode under the condition that the signal transmission power is greater than the first threshold value and the cell power corresponding to the second transceiving link is greater than or equal to a fourth threshold value;
in the case that the sensitivity K1 is greater than the sensitivity K3, reducing the cell power by a second preset value until the sensitivity K1 is less than or equal to the sensitivity K3;
taking a received signal strength indication at the cell power corresponding to a sensitivity K1 that is less than or equal to the sensitivity K3 as the second threshold value.
The determination of the second threshold value is related to a cell power corresponding to the second signaling link.
When the quality of the cell signal received by the second signal transceiving link is good, namely the power of the cell corresponding to the second signal transceiving link is high, the second signal transceiving link goes through a bypass path, and the interference of the interference signal transmitted by the first signal transceiving link is small and can be ignored.
The cell signal quality level received by the second signaling link is characterized by RSSI. The Cell Power (Cell Power) corresponding to the second transceiving link is the Power of the Cell communicating with the second transceiving link. The higher the cell power corresponding to the second signal transceiving link is, the higher the RSSI of the signal received by the second signal transceiving link is.
When the power of the cell corresponding to the second signal transceiving link is lower than the fourth threshold value c, that is, the signal quality of the cell is degraded, the interference of the interference signal transmitted by the first signal transceiving link on the second signal transceiving link can be observed. c is determined by experiment in advance. After gain processing is performed through an ENLA enabling path in the second signal transceiving link, a useful signal after gain amplification is still stronger than an interference signal, the sensitivity of the second signal transceiving link in the enabling mode is still better than that of the second signal transceiving link in the bypass mode, and the second signal transceiving link is not blocked.
When the RSSI under the cell power corresponding to the second signal transceiving link is lower than the second threshold value d, that is, the cell signal quality further decreases to be equivalent to the received interference signal transmitted by the second signal transceiving link, the worse the cell signal quality, the larger the current gain level used by the enable path of the elan is, the larger the synchronous amplification degree of the interference signal and the useful signal is, the larger the interference degree is, the sensitivity of the enable path of the elan is worse than that of the bypass path thereof, that is, the elan is blocked.
As shown in fig. 7, the second threshold value is determined as follows:
1. setting the transmission power corresponding to a first signal transceiving link L1 of the wireless communication device to be greater than or equal to a first threshold value b, that is, determining a threshold value of cell power corresponding to the first signal transceiving link when the ELNA is confirmed to be blocked under the condition that an interference signal transmitted by the first signal transceiving link interferes with a second signal transceiving link; while the cell power corresponding to the second signaling link L2 is set to be greater than or equal to the threshold c.
2. Recording an RSSI value d corresponding to the first signal transceiving link, and respectively testing a sensitivity K1 corresponding to the second signal transceiving link when the ELNA applies the current gain level in the enabling mode and a sensitivity K3 corresponding to the second signal transceiving link in the bypass path;
3. comparing the sensitivity K1 corresponding to the second signal transceiving link in the enable mode with the sensitivity K3 corresponding to the second signal transceiving link in the bypass mode: if K1 is better than K3, the second signal transceiving link is not saturated at the moment and can still work normally, and the cell power of the second signal transceiving link is reduced continuously according to a second preset value until K1 is better than K3; if the first preset value is 0.5 dB;
4. if K1 is better than K3, it is said that the second signal transceiving link is blocked, and the RSSI of the currently received signal of the first signal transceiving link is d, which is written into the NV of the wireless communication device.
According to the embodiment of the application, under the condition that the signal transmitting power of the first signal transceiving link can interfere the second signal transceiving link, the sensitivity of the ELNA enabling path and the sensitivity corresponding to the bypass path are compared to debug the cell power corresponding to the second signal transceiving link, and the threshold value of the RSSI of the second signal transceiving link receiving signals is accurately obtained under the condition that the ELNA enabling path is blocked, so that the blocking scene is accurately judged.
Optionally, in this embodiment of the present application, the performing signal processing based on the bypass path in the elan includes: performing signal processing based on a bypass path in the ELNA in the absence of the backoff gain level.
In case the backoff gain level is not present, i.e. the backoff gain level is not found in the elan of the second signaling link to solve the blocking problem, a bypass path in the elan is taken. Since the sensitivity of the ELNA enable path is less than the sensitivity of the bypass path in the blocking case, switching directly to the bypass path in the ELNA can also solve the blocking problem.
According to the embodiment of the application, the problem of blocking is solved by not finding the backspacing gain grade in the ELNA of the second signal transceiving link, and the bypass path in the ELNA is switched to, so that the blocking and the interference of the link are avoided, and the communication quality of the wireless communication equipment is improved.
It should be noted that, in the link processing method provided in the embodiment of the present application, the execution main body may be a link processing apparatus, or a control module in the link processing apparatus for executing the loading link processing method. In the embodiment of the present application, a link processing device is taken as an example to execute a load link processing method, and the link processing method provided in the embodiment of the present application is described.
As shown in fig. 8, a link processing apparatus provided in an embodiment of the present application is applied to a wireless communication device, where the wireless communication device includes a processor, a first signal transceiving link, a second signal transceiving link, and an external low noise amplifier, the first signal transceiving link is connected to the processor, the second signal transceiving link is connected to the processor through the external low noise amplifier, and the external low noise amplifier has an enable mode and a bypass mode, and includes: an obtainingmodule 801 and aprocessing module 802, wherein:
the obtainingmodule 801 is configured to obtain a signal transmitting power corresponding to the first signal transceiving link and a received signal strength indication corresponding to the second signal transceiving link;
the obtainingmodule 801 obtains the signal transmission power of the signal transmitted by the first signal transceiving link and the RSSI of the signal received by the second signal transceiving link on the wireless communication device. The embodiment of the application is not limited to the specific acquisition mode of the signal transmission power and the RSSI.
Theprocessing module 802 is configured to switch the operating mode of the external low noise amplifier through a gain level backoff mechanism when the signal transmission power is greater than or equal to a first threshold and the received signal strength indication is less than or equal to a second threshold, so that the second signal transceiving link operates normally.
The present embodiment reflects the strength of the interference signal using the signal transmission power of the first signal transceiving link, and reflects the strength of the desired signal using the RSSI of the second signal transceiving link. And under the condition that the signal transmission power of the first signal transceiving link is greater than or equal to a first threshold value and the RSSI of the second signal transceiving link is less than or equal to a second threshold value, the second signal transceiving link is greatly interfered or blocked. The embodiment of the present application is not limited to the confirmation method of the first threshold value and the second threshold value.
The gain level rollback mechanism is used for searching a gain level which is lower than the current gain level and meets a certain condition for the external low-noise amplifier, and switching the working mode of the external low-noise amplifier according to the searching condition, so that the gain processing degree of the useful signal and the interference signal is reduced or the gain processing is not carried out, and compared with the current gain level, the difference between the strengths of the useful signal and the interference signal is reduced, so that the second signal transceiving link can identify the useful signal and normally work.
In the embodiment of the application, the interference of the interference signal is considered, and under the condition that the ELNA is interfered or blocked due to the interference signal, the working mode of the external low-noise amplifier is switched by using a gain level rollback mechanism, so that a link normally works, and the communication quality of the wireless communication equipment is improved.
Optionally, the processing module is configured to: adjusting the external low noise amplifier to a back-off gain level, and switching the adjusted external low noise amplifier to the enable mode or switching the external low noise amplifier to the bypass mode;
wherein the backoff gain level satisfies the following condition: a sensitivity K2 corresponding to the second signaling link when the fallback gain level is applied in the enabled mode is greater than a sensitivity K1 corresponding to the second signaling link when the current gain level is applied in the enabled mode, and the sensitivity K2 is greater than a sensitivity K3 corresponding to the second signaling link in the bypass mode.
Optionally, an embodiment of the present application further includes an adjusting module, configured to: reducing the gain level of the external low noise amplifier by a level, and testing the sensitivity K2 corresponding to the second signal transceiving link when the reduced gain level is applied in the enabling mode;
testing a sensitivity K3 corresponding to the second signaling link in the bypass mode if the sensitivity K2 is greater than the sensitivity K1;
taking the reduced gain level as the back-off gain level if the sensitivity K2 is greater than the sensitivity K3.
Optionally, an embodiment of the present application further includes a storage module, configured to: storing the back-off gain level in a non-volatile memory NV in the wireless communication device.
Optionally, the embodiment of the present application further includes a test module, configured to: acquiring a third threshold value; wherein the third threshold is less than the first threshold;
testing a sensitivity K1 corresponding to the second signaling link when the current gain level is applied in the enabled mode and a sensitivity K3 corresponding to the second signaling link in the bypass mode, if the signal transmission power is greater than a third threshold value;
in the case that the sensitivity K1 is greater than the sensitivity K3 corresponding to the bypass path, increasing the signal transmission power by a first preset value until the sensitivity K1 is less than or equal to the sensitivity K3;
and taking the signal transmission power corresponding to the sensitivity K1 which is less than or equal to the sensitivity K3 as the first threshold value.
Optionally, the test module in the embodiment of the present application is further configured to: testing a sensitivity K1 corresponding to the second signal transceiving link when the current gain level is applied in the enabling mode and a sensitivity K3 corresponding to the second signal transceiving link in the bypass mode under the conditions that the signal transmission power is greater than the first threshold value and the cell power corresponding to the second signal transceiving link is greater than or equal to a fourth threshold value;
in the case that the sensitivity K1 is greater than the sensitivity K3, reducing the cell power by a second preset value until the sensitivity K1 is less than or equal to the sensitivity K3;
taking a received signal strength indication at the cell power corresponding to a sensitivity K1 that is less than or equal to the sensitivity K3 as the second threshold value.
Optionally, the processing module in the embodiment of the present application is configured to: switching the external low noise amplifier to the bypass mode in the absence of the backoff gain level. The information processing apparatus in the embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal. The device can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiments of the present application are not particularly limited.
The information processing apparatus in the embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.
The information processing apparatus provided in the embodiment of the present application can implement each process implemented by the information processing apparatus in the method embodiments of fig. 3 to fig. 7, and is not described herein again to avoid repetition.
Fig. 9 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application, and as shown in fig. 9, theelectronic device 900 includes, but is not limited to: a radio frequency unit 901, anetwork module 902, anaudio output unit 903, aninput unit 904, asensor 905, adisplay unit 906, auser input unit 907, aninterface unit 908, amemory 909, and aprocessor 910, and the like.
Those skilled in the art will appreciate that theelectronic device 900 may further include a power source (e.g., a battery) for supplying power to various components, and the power source may be logically connected to theprocessor 910 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system. The electronic device structure shown in fig. 9 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is not repeated here.
It should be understood that, in the embodiment of the present application, theinput Unit 904 may include a Graphics Processing Unit (GPU) 9041 and amicrophone 9042, and theGraphics Processing Unit 9041 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. Thedisplay unit 906 may include adisplay panel 9061, and thedisplay panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. Theuser input unit 907 includes atouch panel 9071 andother input devices 9072. Atouch panel 9071 also referred to as a touch screen. Thetouch panel 9071 may include two parts, a touch detection device and a touch controller.Other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
In this embodiment of the application, the radio frequency unit 901 receives downlink data from a network side device and then processes the downlink data to theprocessor 910; in addition, the uplink data is sent to the network side equipment. Generally, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
Theprocessor 910 is configured to obtain a signal transmitting power corresponding to the first signal transceiving link and a received signal strength indication corresponding to the second signal transceiving link; and under the condition that the signal transmitting power is greater than or equal to a first threshold value and the received signal strength indication is less than or equal to a second threshold value, switching the working mode of the external low noise amplifier through a gain level rollback mechanism to enable the second signal transceiving link to work normally.
Optionally, the processor is configured to: adjusting the external low noise amplifier to a back-off gain level, and switching the adjusted external low noise amplifier to the enable mode or switching the external low noise amplifier to the bypass mode; wherein the backoff gain level satisfies the following condition: a sensitivity K2 corresponding to the second signaling link when the fallback gain level is applied in the enabled mode is greater than a sensitivity K1 corresponding to the second signaling link when the current gain level is applied in the enabled mode, and the sensitivity K2 is greater than a sensitivity K3 corresponding to the second signaling link in the bypass mode.
Optionally, the processor is configured to: reducing the gain level of the external low noise amplifier by a level, testing the sensitivity K2 corresponding to the second signal transceiving link when the reduced gain level is applied in the enabling mode, and testing the sensitivity K3 corresponding to the second signal transceiving link in the bypass mode when the sensitivity K2 is greater than the sensitivity K1; taking the reduced gain level as the back-off gain level if the sensitivity K2 is greater than the sensitivity K3.
Optionally, the processor is configured to: storing the back-off gain level in a non-volatile memory NV in the wireless communication device.
Optionally, the processor is configured to: acquiring a third threshold value; wherein the third threshold is less than the first threshold; testing a sensitivity K1 corresponding to the second signaling link when the current gain level is applied in the enabled mode and a sensitivity K3 corresponding to the second signaling link in the bypass mode, if the signal transmission power is greater than a third threshold value; in the case where the sensitivity K1 is greater than the sensitivity K3, increasing the signal transmission power by a first preset value until the sensitivity K1 is less than or equal to the sensitivity K3; and taking the signal transmission power corresponding to the sensitivity K1 which is less than or equal to the sensitivity K3 as the first threshold value.
Optionally, the processor is configured to: testing a sensitivity K1 corresponding to the second signal transceiving link when the current gain level is applied in the enabling mode and a sensitivity K3 corresponding to the second signal transceiving link in the bypass mode under the conditions that the signal transmission power is greater than the first threshold value and the cell power corresponding to the second signal transceiving link is greater than or equal to a fourth threshold value; in the case that the sensitivity K1 is greater than the sensitivity K3, reducing the cell power by a second preset value until the sensitivity K1 is less than or equal to the sensitivity K3; taking a received signal strength indication at the cell power corresponding to a sensitivity K1 that is less than or equal to the sensitivity K3 as the second threshold value.
Optionally, the processor is configured to: switching the external low noise amplifier to the bypass mode in the absence of the backoff gain level.
The electronic device embodiment in the embodiment of the present application is a product embodiment corresponding to the method embodiment, and all implementation manners in the method embodiment are applicable to the electronic device embodiment, and may also achieve the same or similar technical effects, so that details are not described herein again.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the above-mentioned embodiment of the object distance measuring method, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the above embodiment of the object distance measurement method, and can achieve the same technical effect, and in order to avoid repetition, the details are not repeated here.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order, depending on the functions involved, for example, performing the described methods in an order different from that described, and may also add, omit, or combine various steps. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (15)
1. A link processing method applied to a wireless communication device, the wireless communication device including a processor, a first signal transceiving link, a second signal transceiving link and an external low noise amplifier, the first signal transceiving link being connected to the processor, the second signal transceiving link being connected to the processor through the external low noise amplifier, the external low noise amplifier having an enable mode and a bypass mode, the method comprising:
acquiring signal transmitting power corresponding to the first signal transceiving link and a received signal strength indication corresponding to the second signal transceiving link;
and under the condition that the signal transmitting power is greater than or equal to a first threshold value and the received signal strength indication is less than or equal to a second threshold value, switching the working mode of the external low noise amplifier through a gain level rollback mechanism to enable the second signal transceiving link to work normally.
2. The link processing method according to claim 1, wherein the switching the operating mode of the external low noise amplifier by the gain level backoff mechanism comprises:
adjusting the external low noise amplifier to a back-off gain level, and switching the adjusted external low noise amplifier to the enable mode or switching the external low noise amplifier to the bypass mode;
wherein the backoff gain level satisfies the following condition: a sensitivity K2 corresponding to the second signaling link when the fallback gain level is applied in the enabled mode is greater than a sensitivity K1 corresponding to the second signaling link when the current gain level is applied in the enabled mode, and the sensitivity K2 is greater than a sensitivity K3 corresponding to the second signaling link in the bypass mode.
3. The link processing method of claim 2, wherein the adjusting the external low noise amplifier to a back-off gain level further comprises:
reducing the gain level of the external low noise amplifier by a level, and testing the sensitivity K2 corresponding to the second signal transceiving link when the reduced gain level is applied in the enabling mode;
testing a sensitivity K3 corresponding to the second signaling link in the bypass mode if the sensitivity K2 is greater than the sensitivity K1;
taking the reduced gain level as the back-off gain level if the sensitivity K2 is greater than the sensitivity K3.
4. The link processing method of claim 3, wherein the taking the reduced gain level as the backoff gain level further comprises:
storing the back-off gain level in a non-volatile memory NV in the wireless communication device.
5. The link processing method according to any of claims 1 to 4, wherein the switching the operating mode of the external low noise amplifier by a gain level back-off mechanism when the signal transmission power is greater than or equal to a first threshold and the received signal strength indication is less than or equal to a second threshold further comprises:
acquiring a third threshold value; wherein the third threshold is less than the first threshold;
testing a sensitivity K1 corresponding to the second signaling link when a current gain level is applied in the enable mode and a sensitivity K3 corresponding to the second signaling link in the bypass mode, if the signal transmission power is greater than the third threshold value;
in the case where the sensitivity K1 is greater than the sensitivity K3, increasing the signal transmission power by a first preset value until the sensitivity K1 is less than or equal to the sensitivity K3;
and taking the signal transmission power corresponding to the sensitivity K1 which is less than or equal to the sensitivity K3 as the first threshold value.
6. The link processing method according to claim 5, wherein the step of setting the signal transmission power corresponding to the sensitivity K1 that is less than or equal to the sensitivity K3 as the first threshold value further comprises the steps of:
testing a sensitivity K1 corresponding to the second transceiving link when the current gain level is applied in the enable mode and a sensitivity K3 corresponding to the second transceiving link in the bypass mode under the condition that the signal transmission power is greater than the first threshold value and the cell power corresponding to the second transceiving link is greater than or equal to a fourth threshold value;
in the case that the sensitivity K1 is greater than the sensitivity K3, reducing the cell power by a second preset value until the sensitivity K1 is less than or equal to the sensitivity K3;
taking a received signal strength indication at the cell power corresponding to a sensitivity K1 that is less than or equal to the sensitivity K3 as the second threshold value.
7. The link processing method of claim 2, wherein switching the external low noise amplifier to the bypass mode comprises:
switching the external low noise amplifier to the bypass mode in the absence of the backoff gain level.
8. A link processing apparatus for a wireless communication device, the wireless communication device including a processor, a first signal transceiving link, a second signal transceiving link, and an external low noise amplifier, the first signal transceiving link being connected to the processor, the second signal transceiving link being connected to the processor through the external low noise amplifier, the external low noise amplifier having an enable mode and a bypass mode, the apparatus comprising:
an obtaining module, configured to obtain a signal transmitting power corresponding to the first signal transceiving link and a received signal strength indication corresponding to the second signal transceiving link;
and the processing module is used for switching the working mode of the external low noise amplifier through a gain level rollback mechanism under the condition that the signal transmitting power is greater than or equal to a first threshold value and the received signal strength indication is less than or equal to a second threshold value, so that the second signal transceiving link works normally.
9. The link processing apparatus of claim 8, wherein the processing module is configured to:
adjusting the external low noise amplifier to a back-off gain level, and switching the adjusted external low noise amplifier to the enable mode or switching the external low noise amplifier to the bypass mode;
wherein the backoff gain level satisfies the following condition: a sensitivity K2 corresponding to the second signaling link when the fallback gain level is applied in the enabled mode is greater than a sensitivity K1 corresponding to the second signaling link when the current gain level is applied in the enabled mode, and the sensitivity K2 is greater than a sensitivity K3 corresponding to the second signaling link in the bypass mode.
10. The link processing apparatus of claim 9, further comprising an adjustment module to:
reducing the gain level of the external low noise amplifier by a level, testing the sensitivity K2 corresponding to the second signal transceiving link when the reduced gain level is applied in the enabling mode,
testing a sensitivity K3 corresponding to the second signaling link in the bypass mode if the sensitivity K2 is greater than the sensitivity K1;
taking the reduced gain level as the back-off gain level if the sensitivity K2 is greater than the sensitivity K3.
11. The link processing apparatus according to claim 10, further comprising a storage module configured to:
storing the back-off gain level in a non-volatile memory NV in the wireless communication device.
12. The link processing apparatus according to any one of claims 8 to 11, further comprising a test module configured to:
acquiring a third threshold value; wherein the third threshold is less than the first threshold;
testing a sensitivity K1 corresponding to the second signaling link when a current gain level is applied in the enable mode and a sensitivity K3 corresponding to the second signaling link in the bypass mode, if the signal transmission power is greater than the third threshold value;
in the case where the sensitivity K1 is greater than the sensitivity K3, increasing the signal transmission power by a first preset value until the sensitivity K1 is less than or equal to the sensitivity K3;
and taking the signal transmission power corresponding to the sensitivity K1 which is less than or equal to the sensitivity K3 as the first threshold value.
13. The link processing apparatus of claim 12, wherein the test module is further configured to:
testing a sensitivity K1 corresponding to the second transceiving link when the current gain level is applied in the enable mode and a sensitivity K3 corresponding to the second transceiving link in the bypass mode under the condition that the signal transmission power is greater than the first threshold value and the cell power corresponding to the second transceiving link is greater than or equal to a fourth threshold value;
in the case that the sensitivity K1 is greater than the sensitivity K3, reducing the cell power by a second preset value until the sensitivity K1 is less than or equal to the sensitivity K3;
taking a received signal strength indication at the cell power corresponding to a sensitivity K1 that is less than or equal to the sensitivity K3 as the second threshold value.
14. An electronic device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the link processing method according to any one of claims 1 to 7.
15. A readable storage medium, characterized in that it stores thereon a program or instructions which, when executed by a processor, implement the steps of the link processing method according to any one of claims 1 to 7.
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| CN114499576A (en)* | 2022-01-24 | 2022-05-13 | 中国人民解放军93209部队 | Refined transceiving control method for electronic equipment |
| CN114499576B (en)* | 2022-01-24 | 2024-06-04 | 中国人民解放军93209部队 | Refined receiving and transmitting control method for electronic equipment |
| CN116318222A (en)* | 2022-09-07 | 2023-06-23 | 合肥移瑞通信技术有限公司 | Radio frequency transceiver circuit, method, electronic equipment, storage medium and chip |
| CN116318222B (en)* | 2022-09-07 | 2025-01-21 | 合肥移瑞通信技术有限公司 | Radio frequency transceiver circuit, method, electronic device, storage medium and chip |
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