CN110445562B - Gain control method, device, relay device and storage medium - Google Patents
Gain control method, device, relay device and storage medium Download PDFInfo
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- CN110445562B CN110445562B CN201910754458.9A CN201910754458A CN110445562B CN 110445562 B CN110445562 B CN 110445562B CN 201910754458 A CN201910754458 A CN 201910754458A CN 110445562 B CN110445562 B CN 110445562B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
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Abstract
The disclosure relates to a gain control method, a gain control device, a relay device and a storage medium, which are applied to the relay device, wherein the method comprises the following steps: detecting the received signal strength RSSI of an output signal of a target link; determining the working state of the target link according to the RSSI of the output signal; and controlling the link gain of the target link according to the working state of the target link. By using the embodiments of the present disclosure, the link gain of the relay device can be adaptively adjusted, and the link communication quality can be improved.
Description
Technical Field
The present disclosure relates to the field of communications, and in particular, to a gain control method and apparatus, a relay device, and a storage medium.
Background
Since a wireless signal is attenuated due to a large propagation distance, blocking of an obstacle, and the like, it is generally necessary to perform gain transfer on the wireless signal during propagation by using a relay device such as a micro-chamber repeater or a repeater in order to secure a coverage of the wireless signal.
However, in the prior art, the link gain of the link is usually set according to actual requirements. However, since the field conditions and the strength of the wireless signal themselves are not constant but vary at any time, the strength of the signal forwarded through the gain is too high, and further, conditions such as noise floor rise and nonlinear imbalance are caused, resulting in low link communication quality.
Disclosure of Invention
The disclosure provides a gain control method, a gain control device, a relay device and a storage medium, which are used for dynamically controlling link gain of the relay device and improving link communication quality.
According to a first aspect of the present disclosure, there is provided a gain control method applied to a relay device, the method including:
detecting the received signal strength RSSI of an output signal of a target link;
determining the working state of the target link according to the RSSI of the output signal;
and controlling the link gain of the target link according to the working state of the target link.
In a possible implementation manner of the present disclosure, the determining the operating state of the target link according to the RSSI of the output signal includes:
and if the RSSI of the output signal is smaller than a preset rated value, determining that the working state of the target link is a fixed gain state.
In a possible implementation manner of the present disclosure, the controlling, according to the working state of the target link, a link gain of the target link includes:
and if the working state of the target link is a fixed gain state, controlling the link gain to be a preset fixed gain value.
In a possible implementation manner of the present disclosure, the determining the operating state of the target link according to the RSSI of the output signal includes:
and if the RSSI of the output signal is greater than or equal to a preset rated value, determining that the working state of the target link is a gain compression state.
In a possible implementation manner of the present disclosure, the controlling, according to the working state of the target link, a link gain of the target link includes:
and if the working state of the target link is a gain compression state, adjusting the link gain of the target link according to the RSSI of the input signal of the target link.
In a possible implementation manner of the present disclosure, the adjusting the link gain of the target link according to the RSSI of the input signal of the target link includes:
monitoring the RSSI of the input signal;
and adjusting the link gain of the target link according to the RSSI of the input signal, so that the sum of the RSSI of the input signal and the link gain is equal to the preset rated value.
In a possible implementation manner of the present disclosure, the adjusting the link gain of the target link according to the RSSI of the input signal of the target link further includes:
and dynamically adjusting the link gain according to the change condition of the RSSI of the input signal, so that the sum of the RSSI of the input signal and the link gain is kept at the preset rated value.
In a possible implementation manner of the present disclosure, the dynamically adjusting the link gain according to the change of the RSSI of the input signal includes:
and if the RSSI of the input signal is increased, controlling the link gain to be reduced, and controlling the reduction amount of the link gain to be equal to the increase amount of the RSSI.
In a possible implementation manner of the present disclosure, the dynamically adjusting the link gain according to the change of the RSSI of the input signal includes:
and if the RSSI of the input signal is reduced, controlling the link gain to be increased, and controlling the increase of the link gain to be equal to the reduction of the RSSI.
In a possible implementation manner of the present disclosure, the adjusting the link gain of the target link according to the RSSI of the input signal of the target link includes:
monitoring the RSSI of the input signal;
and if the RSSI of the input signal is greater than a first threshold value, adjusting the link gain to be 0, and closing a Low Noise Amplifier (LNA) at the input end of the target link.
In a possible implementation manner of the present disclosure, the adjusting the link gain of the target link according to the RSSI of the input signal of the target link further includes:
if the RSSI of the input signal is larger than a second threshold value, the link gain is adjusted to be 0, an input end Low Noise Amplifier (LNA) of the target link and an output end Power Amplifier (PA) of the target link are closed, and the second threshold value is larger than the first threshold value.
In a possible implementation manner of the present disclosure, the target link is an uplink amplification link or a downlink amplification link of the relay device.
According to a second aspect of the present disclosure, there is provided a gain control apparatus applied to a relay device, the apparatus including:
the signal detection module is used for detecting the received signal strength RSSI of the output signal of the target link;
a gain control module configured to determine an operating state of the target link according to the RSSI of the output signal; and controlling the link gain of the target link according to the working state of the target link.
In one possible implementation manner of the present disclosure, the gain control module is further configured to:
and if the RSSI of the output signal is smaller than a preset rated value, determining that the working state of the target link is a fixed gain state.
In one possible implementation manner of the present disclosure, the gain control module is further configured to:
and if the working state of the target link is a fixed gain state, controlling the link gain to be a preset fixed gain value.
In one possible implementation manner of the present disclosure, the gain control module is further configured to:
and if the RSSI of the output signal is greater than or equal to a preset rated value, determining that the working state of the target link is a gain compression state.
In one possible implementation manner of the present disclosure, the gain control module is further configured to:
and if the working state of the target link is a gain compression state, adjusting the link gain of the target link according to the RSSI of the input signal of the target link.
In a possible implementation manner of the present disclosure, the signal detection module is further configured to monitor an RSSI of the input signal, and if the working state of the target link is a gain compression state, the adjusting the link gain of the target link according to the RSSI of the input signal of the target link further includes:
and adjusting the link gain of the target link according to the RSSI of the input signal, so that the sum of the RSSI of the input signal and the link gain is equal to the preset rated value.
In a possible implementation manner of the present disclosure, the adjusting the link gain of the target link according to the RSSI of the input signal of the target link further includes:
and dynamically adjusting the link gain according to the change condition of the RSSI of the input signal, so that the sum of the RSSI of the input signal and the link gain is kept at the preset rated value.
In a possible implementation manner of the present disclosure, the dynamically adjusting the link gain according to the change of the RSSI of the input signal includes:
and if the RSSI of the input signal is increased, controlling the link gain to be reduced, and controlling the reduction amount of the link gain to be equal to the increase amount of the RSSI.
In a possible implementation manner of the present disclosure, the dynamically adjusting the link gain according to the change of the RSSI of the input signal includes:
and if the RSSI of the input signal is reduced, controlling the link gain to be increased, and controlling the increase of the link gain to be equal to the reduction of the RSSI.
In a possible implementation manner of the present disclosure, the signal detection module is further configured to monitor RSSI of the input signal, and correspondingly, the gain control module is further configured to:
and if the RSSI of the input signal is greater than a first threshold value, adjusting the link gain to be 0, and closing a Low Noise Amplifier (LNA) at the input end of the target link.
In one possible implementation manner of the present disclosure, the gain control module is further configured to:
if the RSSI of the input signal is larger than a second threshold value, the link gain is adjusted to be 0, an input end Low Noise Amplifier (LNA) of the target link and an output end Power Amplifier (PA) of the target link are closed, and the second threshold value is larger than the first threshold value.
In a possible implementation manner of the present disclosure, the target link is an uplink amplification link or a downlink amplification link of the relay device.
According to a third aspect of the present disclosure, there is provided a relay apparatus comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to carry out the executable instructions when executing the method of the first aspect of the present disclosure.
According to a fourth aspect of the present disclosure, there is provided a non-transitory computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the method of the first aspect of the present disclosure.
According to the implementation manner of the aspects of the disclosure, the current working state of the link can be accurately determined according to the RSSI of the output signal of the target link. Aiming at different working states, different gain control modes are adopted to control the link gain, and the link gain is dynamically adjusted, so that the link gain can be ensured to be suitable for different working states. And different working states correspond to different actual communication conditions and actual communication requirements, so that the link gain can be ensured to adapt to different actual communication conditions and actual communication requirements, and the communication quality of the link can be improved.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.
Fig. 1 illustrates a method flow diagram of a gain control method according to an embodiment of the present disclosure.
Fig. 2 is a schematic block diagram of a gain control apparatus according to an embodiment of the present disclosure.
Fig. 3 is a schematic view of an implementation scenario of a relay device according to an embodiment of the present disclosure.
Fig. 4 shows a schematic structural diagram of a relay device according to an embodiment of the present disclosure.
Fig. 5 is a schematic structural diagram of one possible design of a relay device according to an embodiment of the present disclosure.
Fig. 6 is a block diagram illustrating a relay device according to an example embodiment.
Detailed Description
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure. The implementation provided in the embodiments of the present disclosure may be applied to multiple communication systems, for example, an LTE (long term evolution, LTE for short) system, or a communication system that adopts a 5G communication technology, and the present disclosure is not limited thereto.
The user equipment UE related to the embodiments of the present disclosure may include a handheld device, a vehicle-mounted device, a wearable device, a computing device or other processing devices connected to a wireless modem with wireless communication functions, and various forms of user equipment, Mobile Stations (MSs), terminals (terminals), terminal equipment (terminals), and so on, which are referred to as "user equipment" or "UE" in the present disclosure for convenience of description.
The base station related to the embodiment of the present disclosure may be an evolved Node B (NodeB or eNB or e-NodeB, evolved Node B) in an LTE system, or a base station device gNB in a 5G (5th Generation, fifth Generation mobile communication system, abbreviated as 5G) system, or a base station device etltenb in an LTE system. The embodiment of the present disclosure does not particularly limit the type of the base station.
Fig. 1 illustrates a method flow diagram of a gain control method according to an embodiment of the present disclosure. Specifically, as shown in fig. 1, the method may be applied to a relay device, and may include:
s110: the Received Signal Strength RSSI (Received Signal Strength) of the output Signal of the target link is detected.
The relay device can be a wireless repeater or a relay system such as a micro-chamber. The target link may be an uplink amplification link of the relay device or a downlink amplification link.
Fig. 3 is a schematic view of an implementation scenario of a relay device according to an embodiment of the present disclosure. As shown in fig. 3, the relay device may be configured to perform gain forwarding on a signal between an outdoor base station and an indoor indor user equipment UE, and correspondingly, the target link of the relay device may be an indor downlink amplification link from the outdoor base station to the indoor user equipment UE, or may be an outdoor uplink amplification link from the indoor user equipment UE to the outdoor base station.
As shown in fig. 3, P1 is the power of the input signal (i.e., the received signal strength RSSI) of the downlink amplifier link of the relay device, and after the signal is transferred through the downlink amplifier link with link gain GD, the power P2 of the output signal of the downlink amplifier link is P1+ GD. P5 is the power of the input signal of the uplink amplifier of the relay device, and after the power is transferred through the uplink amplifier with link gain GU, the power P6 of the output signal of the uplink amplifier is P5+ GU. In an embodiment of the present disclosure, the link gains GU and GD of each link of the relay device may be controlled by a corresponding gain control unit DSP.
In an embodiment of the present disclosure, the RSSI of the input signal and the RSSI of the output signal may be obtained through decoding and detection of a baseband chip.
Fig. 4 shows a schematic structural diagram of a relay device according to an embodiment of the present disclosure. As shown in fig. 4, the relay device may include a first outdoor radio frequency transceiver, a second indoor radio frequency transceiver, and a baseband chip, where the baseband chip may obtain the input signal strength of the relay device indoor downlink through decoding detection of the first radio frequency transceiver, and obtain the output signal strength of the relay device indoor downlink through decoding detection of the second radio frequency transceiver. The outdoor indoor radio frequency part receives macro station signals, enters a baseband, the baseband is synchronous and resides in a proper cell, and then the indoor radio frequency part is opened to amplify the signals and send the signals to the indoor. The uplink is to amplify the indoor signal and send the indoor signal to the outdoor; while the signal is transmitted and amplified, the signal also enters a baseband, and the baseband performs frequency tracking, power control and the like according to the received signal.
In an embodiment of the present disclosure, as shown in fig. 4, the relay device may further include a filter, a low noise amplifier LNA, and a power amplifier PA, and correspondingly, for detecting the RSSI of an input signal, the filtering processing and the low noise amplification processing may be performed on the input signal, and then the filtered and amplified input signal is detected by decoding a baseband chip, so as to obtain the RSSI of the input signal.
S120: and determining the working state of the target link according to the RSSI of the output signal.
The working state of the target link may include a fixed gain state and a gain compression state. In the fixed gain state, the link gain of the target link is fixed to initial gains GD0 (uplink) and GU0 (downlink). In a gain compression state, the link gain of the target link is dynamically controlled by a gain control unit of the relay device.
In an embodiment of the present disclosure, the determining of the working state of the target link may include:
and if the RSSI of the output signal is smaller than a preset rated value POWER0, determining that the working state of the target link is a fixed gain state.
The preset rating POWER0 may be determined according to actual communication requirements of a receiving end (UE or base station) corresponding to the target link, and specifically, the strength of a signal received by the receiving end is moderate, the bottom noise is low, and IQ signal saturation, non-linear imbalance and other phenomena are not caused.
The RSSI of the output signal can be directly detected by a baseband chip, and can also be calculated according to the RSSI of the input signal and the actual link gain. Namely, when the RSSI + GD \ GU < POWER0 of the input signal is input, the target link is determined to be in a fixed gain state.
In the fixed gain state, the RSSI of the output signal is smaller than a rated value, so that the fixed gain can be kept, and the phenomena of small bottom noise, IQ signal saturation, nonlinear imbalance and the like are avoided. The gain can thus be kept constant.
In another embodiment of the present disclosure, the determining of the working state of the target link may include:
and if the RSSI of the output signal is greater than or equal to a preset rated value POWER0, determining that the working state of the target link is a gain compression state.
In the gain compression state, the RSSI of the output signal POWER exceeds the POWER0, which may cause the communication signal at the corresponding receiving end to be too high, resulting in high background noise, non-linear imbalance, IQ signal saturation, and the like. It is therefore desirable to compress the link gain of the target link to maintain the output signal POWER at the nominal value POWER0 to ensure quality of communications.
S130: and controlling the link gain of the target link according to the working state of the target link.
Specifically, in an embodiment of the present disclosure, if the target link is in a fixed gain state, the link gain of the target link is controlled to be a preset fixed gain, the preset fixed gain is GU0 for the uplink amplification link, and the preset fixed gain is GD0 for the downlink amplification link. The preset fixed gain may be configured and stored in a predetermined nonvolatile memory NVROM. If the target link is in the fixed gain state, the gain control unit of the relay device may obtain the preset fixed gain value, and control the actual link gain of the target link to be the preset fixed gain value.
The preset fixed gain values GU0, GD0 may be updated once every time the relay device is started, or may be updated once every predetermined time, for example, once every 24 hours, once every 12 hours, and the like. Therefore, the preset fixed gain values GU0 and GD0 can be adjusted adaptively according to the field conditions of the relay equipment, and the gain of the relay equipment can meet the requirement of communication quality.
In another embodiment of the present disclosure, if the working state of the target link is a gain compression state, the link gain of the target link is adjusted according to the RSSI of the input signal of the target link.
When the working state of the target link is determined to be a gain compression state, the RSSI of an input signal can be monitored in real time through a baseband chip, and the link gain of the target link is adjusted according to the RSSI of the input signal. Specifically, the sum of the RSSI of the input signal and the link gain GU \ GD can be controlled to be equal to the preset rated value POWER0, and the RSSI of the output signal is equal to the sum of the RSSI of the input signal and the link gain GU \ GD, so that the RSSI of the output signal of the target link can be adjusted.
Further, in another embodiment of the present disclosure, the link gain of the target link may be dynamically adjusted according to a variation of the RSSI of the input signal, so that the sum of the RSSI of the input signal and the link gain GU \ GD is kept at the preset rated value POWER 0. That is, under the condition that the RSSI of the input signal changes, the link gain is synchronously adjusted accordingly, so that the output signal power of the target link is kept stable, and the stable communication quality is ensured.
Specifically, in the monitoring process, if the RSSI of the input signal increases, the link gain is controlled to decrease accordingly, and the increase of the link gain is controlled to be equal to the decrease of the RSSI of the input signal. And if the RSSI of the input signal is increased, controlling the link gain to be correspondingly reduced, and controlling the reduction amount of the link gain to be equal to the increase amount of the RSSI. Therefore, the sum of the RSSI of the input signal and the link gain GU \ GD is kept to be the preset rated value POWER0, namely the RSSI of the output signal is kept to be the preset rated value POWER0, and the signal receiving quality of a receiving end of the output signal is ensured to be stable and improved.
In another embodiment of the present disclosure, as shown in fig. 4, the relay device may further include a filter, a low noise amplifier LNA, and a power amplifier PA. Correspondingly, if the RSSI of the input signal exceeds a preset first threshold value, for example, the RSSI of the input signal exceeds the preset rated value POWER0, even if the link gain is reduced to 0, the sum of the RSSI of the input signal and the link gain is still greater than POWER0, and the low Noise amplifier lna (low Noise amplifier) at the input end of the target link can be turned off during the monitoring process.
The setting of the first threshold may use the maximum signal strength actually acceptable by the receiving end of the target link as a setting basis. For example, the first threshold may be set to be 2 times, 1.5 times, etc. of POWER0, so as to ensure that the received signal strength at the receiving end corresponding to the output end of the target link does not exceed the first threshold to the maximum, thereby ensuring the communication quality. In addition, the RSSI of the input signal can be directly reduced by turning off the Low Noise Amplifier (LNA) at the input end of the target link, so that the RSSI of the corresponding output signal can be reduced as soon as possible.
In another embodiment of the present disclosure, during the monitoring process, if the RSSI of the input signal is too large and exceeds a preset second threshold, the link gain is adjusted to 0, and the low noise amplifier LNA at the input end of the target link and the power amplifier pa (power amplifier) at the output end of the target link are turned off. Wherein the second threshold is greater than the first threshold. The setting of the second threshold may use the maximum signal strength actually acceptable by the receiving end of the target link as a setting basis. For example, the second threshold may be set to be 2 times, 1.5 times, or the like of POWER0, so as to ensure that the signal strength received by the receiving end corresponding to the output end of the target link does not exceed the second threshold to the maximum, thereby ensuring the communication quality. On the basis of closing the Low Noise Amplifier (LNA) at the input end of the target link, the Power Amplifier (PA) at the input end of the target link is further closed, so that the RSSI of the input signal can be further reduced, and the RSSI of the corresponding output signal can be reduced as soon as possible.
Based on the methods provided by the embodiments corresponding to fig. 1, fig. 3, and fig. 4, the present disclosure also provides a gain control device. The device can be applied to repeater, micro-chamber and other relay equipment. Fig. 2 is a schematic block diagram of an embodiment of a gain control apparatus provided in the present disclosure. Specifically, as shown in fig. 2, the apparatus may include:
a signal detection module 101, configured to detect a received signal strength RSSI of an output signal of a target link;
a gain control module 102, which may be configured to determine an operating state of the target link according to the RSSI of the output signal; and controlling the link gain of the target link according to the working state of the target link.
In an embodiment of the present disclosure, the gain control module 102 may be further configured to:
and if the RSSI of the output signal is smaller than a preset rated value, determining that the working state of the target link is a fixed gain state.
In another embodiment of the present disclosure, the gain control module 102 may be further configured to:
and if the working state of the target link is a fixed gain state, controlling the link gain to be a preset fixed gain value.
In an embodiment of the present disclosure, the gain control module 102 may be further configured to:
and if the RSSI of the output signal is greater than or equal to a preset rated value, determining that the working state of the target link is a gain compression state.
In another embodiment of the present disclosure, the gain control module 102 may be further configured to:
and if the working state of the target link is a gain compression state, adjusting the link gain of the target link according to the RSSI of the input signal of the target link.
In an embodiment of the present disclosure, the signal detecting module 101 may be further configured to monitor an RSSI of the input signal, and if the working state of the target link is a gain compression state, the adjusting the link gain of the target link according to the RSSI of the input signal of the target link further includes:
and adjusting the link gain of the target link according to the RSSI of the input signal, so that the sum of the RSSI of the input signal and the link gain is equal to the preset rated value.
In an embodiment of the present disclosure, the adjusting the link gain of the target link according to the RSSI of the input signal of the target link further includes:
and dynamically adjusting the link gain according to the change condition of the RSSI of the input signal, so that the sum of the RSSI of the input signal and the link gain is kept at the preset rated value.
In an embodiment of the present disclosure, the dynamically adjusting the link gain according to the change of the RSSI of the input signal includes:
and if the RSSI of the input signal is increased, controlling the link gain to be reduced, and controlling the reduction amount of the link gain to be equal to the increase amount of the RSSI.
In one embodiment of the present disclosure, the dynamically adjusting the link gain according to the variation of the RSSI of the input signal includes:
and if the RSSI of the input signal is reduced, controlling the link gain to be increased, and controlling the increase of the link gain to be equal to the reduction of the RSSI.
In an embodiment of the present disclosure, the signal detection module 101 may further be configured to monitor RSSI of the input signal, and correspondingly, the gain control module 102 may be further configured to:
and if the RSSI of the input signal is greater than a first threshold value, adjusting the link gain to be 0, and closing a Low Noise Amplifier (LNA) at the input end of the target link.
In an embodiment of the present disclosure, the gain control module 102 is further configured to:
if the RSSI of the input signal is larger than a second threshold value, the link gain is adjusted to be 0, an input end Low Noise Amplifier (LNA) of the target link and an output end Power Amplifier (PA) of the target link are closed, and the second threshold value is larger than the first threshold value.
In an embodiment of the present disclosure, the target link may be an uplink amplification link or a downlink amplification link of the relay device.
For the processes related to the above devices, which are the same as or similar to the processes in the embodiments shown in fig. 1, fig. 3, and fig. 4, specific implementations may be implemented according to the implementations provided in the embodiments corresponding to fig. 1, fig. 3, and fig. 4.
Based on the gain control method described in the foregoing embodiments, the present disclosure further provides a relay device. Fig. 5 is a schematic structural diagram of one possible design of a relay device according to an embodiment of the present disclosure. Specifically, as shown in fig. 5, the relay device may include:
a processor 201. The processor 201 is configured to control and manage the actions of the relay device, and perform various functions to support communication services provided by the control device.
A memory 202 for storing processor-executable instructions. The memory 202 is used for storing executable instructions and data of the terminal for performing the beam determination method provided by the embodiment of the present disclosure, and the executable instructions include computer operation instructions. The computer program code stored by the memory 202 may be executed by the processor 201.
The processor 201 is configured to execute the instructions to support the terminal to implement the method flows executed by the relay device in the embodiments shown in fig. 1, fig. 3, and fig. 4.
The transmitter/receiver 203 is used to support the relay device to communicate with the UE or base station.
The communication module 204 is used to support communication between the relay device and other network devices, and the communication module 204 may include a communication interface between the relay device and other devices.
It is clear to those skilled in the art that the embodiments of the present disclosure may be referred to each other, for example, for convenience and brevity of description, the specific working processes of the units or modules in the above-described apparatus and apparatus may be described with reference to the corresponding processes in the foregoing method embodiments.
Fig. 6 is a block diagram illustrating a relay device according to an example embodiment. For example, the apparatus 1900 may be provided as a server. Referring to FIG. 6, the device 1900 includes a processing component 1922 further including one or more processors and memory resources, represented by memory 1932, for storing instructions, e.g., applications, executable by the processing component 1922. The application programs stored in memory 1932 may include one or more modules that each correspond to a set of instructions. Further, the processing component 1922 is configured to execute instructions to perform the above-described method.
The device 1900 may also include a power component 1926 configured to perform power management of the device 1900, a wired or wireless network interface 1950 configured to connect the device 1900 to a network, and an input/output (I/O) interface 1958. The device 1900 may operate based on an operating system stored in memory 1932, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.
In an exemplary embodiment, a non-transitory computer readable storage medium, such as the memory 1932, is also provided that includes computer program instructions executable by the processing component 1922 of the apparatus 1900 to perform the above-described methods.
The present disclosure may be systems, methods, and/or computer program products. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied thereon for causing a processor to implement various aspects of the present disclosure.
The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.
The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.
The computer program instructions for carrying out operations of the present disclosure may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, the electronic circuitry that can execute the computer-readable program instructions implements aspects of the present disclosure by utilizing the state information of the computer-readable program instructions to personalize the electronic circuitry, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA).
Various aspects of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.
These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (18)
1. A gain control method is applied to a relay device, and the method comprises the following steps:
detecting the received signal strength RSSI of an output signal of a target link;
determining the working state of the target link according to the RSSI of the output signal, and if the RSSI of the output signal is greater than or equal to a preset rated value, determining that the working state of the target link is a gain compression state;
controlling the link gain of the target link according to the working state of the target link, and if the working state of the target link is a gain compression state, adjusting the link gain of the target link according to the RSSI of the input signal of the target link, including:
monitoring the RSSI of the input signal;
if the RSSI of the input signal is larger than a first threshold value, adjusting the link gain to be 0, and closing a Low Noise Amplifier (LNA) at the input end of the target link;
if the RSSI of the input signal is larger than a second threshold value, the link gain is adjusted to be 0, an input end Low Noise Amplifier (LNA) of the target link and an output end Power Amplifier (PA) of the target link are closed, and the second threshold value is larger than the first threshold value.
2. The method of claim 1, wherein determining the operating state of the target link based on the RSSI of the output signal further comprises:
and if the RSSI of the output signal is smaller than a preset rated value, determining that the working state of the target link is a fixed gain state.
3. A method as claimed in claim 1 or 2, wherein said controlling the link gain of said target link according to the operating state of said target link further comprises:
and if the working state of the target link is a fixed gain state, controlling the link gain to be a preset fixed gain value.
4. The method of claim 1, wherein the adjusting the link gain of the target link according to the RSSI of the input signal of the target link further comprises:
and adjusting the link gain of the target link according to the RSSI of the input signal, so that the sum of the RSSI of the input signal and the link gain is equal to the preset rated value.
5. The method of claim 4, wherein the adjusting the link gain of the target link according to the RSSI of the input signal of the target link further comprises:
and dynamically adjusting the link gain according to the change condition of the RSSI of the input signal, so that the sum of the RSSI of the input signal and the link gain is kept at the preset rated value.
6. The method as claimed in claim 5, wherein said dynamically adjusting the link gain according to the RSSI of the input signal comprises:
and if the RSSI of the input signal is increased, controlling the link gain to be reduced, and controlling the reduction amount of the link gain to be equal to the increase amount of the RSSI.
7. A gain control method as claimed in claim 5 or 6, wherein said dynamically adjusting said link gain in response to changes in RSSI of said input signal comprises:
and if the RSSI of the input signal is reduced, controlling the link gain to be increased, and controlling the increase of the link gain to be equal to the reduction of the RSSI.
8. The method of claim 1, wherein the target link is an uplink amplifier link or a downlink amplifier link of the relay device.
9. A gain control apparatus, applied to a relay device, the apparatus comprising:
the signal detection module is used for detecting the received signal strength RSSI of the output signal of the target link and monitoring the RSSI of the input signal;
the gain control module is configured to determine the working state of the target link according to the RSSI of the output signal, and if the RSSI of the output signal is greater than or equal to a preset rated value, the working state of the target link is determined to be a gain compression state; controlling the link gain of the target link according to the working state of the target link, and if the working state of the target link is a gain compression state, adjusting the link gain of the target link according to the RSSI of the input signal of the target link, including:
if the RSSI of the input signal is larger than a first threshold value, adjusting the link gain to be 0, and closing a Low Noise Amplifier (LNA) at the input end of the target link;
if the RSSI of the input signal is larger than a second threshold value, the link gain is adjusted to be 0, an input end Low Noise Amplifier (LNA) of the target link and an output end Power Amplifier (PA) of the target link are closed, and the second threshold value is larger than the first threshold value.
10. The gain control apparatus of claim 9, wherein the gain control module is further configured to:
and if the RSSI of the output signal is smaller than a preset rated value, determining that the working state of the target link is a fixed gain state.
11. A gain control apparatus as claimed in claim 9 or 10, wherein the gain control module is further configured to:
and if the working state of the target link is a fixed gain state, controlling the link gain to be a preset fixed gain value.
12. The apparatus as claimed in claim 9, wherein the signal detection module is further configured to monitor RSSI of the input signal, and if the operating status of the target link is a gain compression status, the adjusting the link gain of the target link according to the RSSI of the input signal of the target link further comprises:
and adjusting the link gain of the target link according to the RSSI of the input signal, so that the sum of the RSSI of the input signal and the link gain is equal to the preset rated value.
13. The apparatus of claim 12, wherein said adjusting the link gain of the target link based on the RSSI of the input signal of the target link further comprises:
and dynamically adjusting the link gain according to the change condition of the RSSI of the input signal, so that the sum of the RSSI of the input signal and the link gain is kept at the preset rated value.
14. The apparatus as claimed in claim 13, wherein said dynamically adjusting the link gain according to the RSSI of the input signal comprises:
and if the RSSI of the input signal is increased, controlling the link gain to be reduced, and controlling the reduction amount of the link gain to be equal to the increase amount of the RSSI.
15. A gain control apparatus as claimed in claim 13 or 14, wherein said dynamically adjusting said link gain in response to changes in RSSI of said input signal comprises:
and if the RSSI of the input signal is reduced, controlling the link gain to be increased, and controlling the increase of the link gain to be equal to the reduction of the RSSI.
16. The apparatus of claim 9, wherein the target link is an uplink amplifier link or a downlink amplifier link of the relay device.
17. A relay device, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to carry out the executable instructions when implementing the method of any one of claims 1 to 8.
18. A non-transitory computer readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the method of any of claims 1 to 8.
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| CN110912570B (en) * | 2019-11-18 | 2021-07-06 | 展讯通信（上海）有限公司 | Gear shifting device and method of low noise amplifier, terminal and network element equipment |
| CN113972920A (en) * | 2020-07-24 | 2022-01-25 | 华为技术有限公司 | Method and device for determining target transmitting antenna |
| CN114641056B (en) * | 2020-12-16 | 2024-03-15 | 阿里巴巴集团控股有限公司 | Processing unit and method for adjusting gain of receiver |
| CN113242076B (en) * | 2021-06-15 | 2022-09-16 | 展讯通信（上海）有限公司 | Target link gain control method and device, storage medium and relay equipment |
| CN113573400B (en) * | 2021-07-26 | 2023-10-31 | 上海金卓科技有限公司 | Method, device, equipment and storage medium for automatic gain control of signal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1640011A (en) * | 2002-02-28 | 2005-07-13 | 北电网络有限公司 | Self-configuring repeater system and method |
| CN1794605A (en) * | 2005-11-09 | 2006-06-28 | 凯明信息科技股份有限公司 | Automatic gain control method of public channel |
| CN103580704A (en) * | 2012-07-25 | 2014-02-12 | 中国科学院微电子研究所 | Receiver device adopting automatic gain control and method for controlling receiver by means of automatic gain |
| CN108288992A (en) * | 2017-01-09 | 2018-07-17 | 展讯通信（上海）有限公司 | A kind of Miniature repeater automatically controls the method, apparatus and baseband chip of gain |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8937874B2 (en) * | 2011-09-23 | 2015-01-20 | Qualcomm Incorporated | Adjusting repeater gains based upon received downlink power level |
-
2019
- 2019-08-15 CN CN201910754458.9A patent/CN110445562B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1640011A (en) * | 2002-02-28 | 2005-07-13 | 北电网络有限公司 | Self-configuring repeater system and method |
| CN1794605A (en) * | 2005-11-09 | 2006-06-28 | 凯明信息科技股份有限公司 | Automatic gain control method of public channel |
| CN103580704A (en) * | 2012-07-25 | 2014-02-12 | 中国科学院微电子研究所 | Receiver device adopting automatic gain control and method for controlling receiver by means of automatic gain |
| CN108288992A (en) * | 2017-01-09 | 2018-07-17 | 展讯通信（上海）有限公司 | A kind of Miniature repeater automatically controls the method, apparatus and baseband chip of gain |
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