CN114205201B

CN114205201B - Signal compensation method, signal compensation device, relay device, storage medium, and program product

Info

Publication number: CN114205201B
Application number: CN202111677831.9A
Authority: CN
Inventors: 丁宝国; 刘重军; 付俊涛
Original assignee: Comba Network Systems Co Ltd
Current assignee: Comba Network Systems Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2023-11-24
Anticipated expiration: 2041-12-31
Also published as: CN114205201A

Abstract

The present application relates to a signal compensation method, apparatus, relay device, storage medium, and program product. The method comprises the following steps: receiving a downlink communication signal, and acquiring signal parameter information and signal power data corresponding to a broadcast signal in the downlink communication signal according to the downlink communication signal; generating an initial compensation signal corresponding to the broadcast signal according to the signal parameter information, and performing signal amplitude compensation on the initial compensation signal by utilizing the signal power data to obtain a target compensation signal; and carrying out superposition processing on the downlink communication signal and the target compensation signal so as to compensate the broadcast signal. By adopting the method, the network coverage effect of the relay equipment can be improved.

Description

Signal compensation method, signal compensation device, relay device, storage medium, and program product

Technical Field

The present application relates to the field of wireless communications technologies, and in particular, to a signal compensation method, apparatus, relay device, storage medium, and program product.

Background

With the rapid development of wireless communication technology, in order to achieve better coverage of a mobile communication network, a Relay (Relay) technology has emerged. The relay technology is that one or more relay nodes are added between a base station and a terminal, and the relay nodes are responsible for forwarding wireless signals once or more times to the terminal.

Taking the relay technology applied in 5G (5 th Generation Mobile Communication Technology, fifth generation mobile communication technology) as an example, the base station transmits broadcast signals and service signals to the relay device through differently shaped beams based on a large-scale antenna technology (Massive MIMO), and the relay device forwards the received signals to the terminal.

However, in the communication method based on the relay device, the network coverage effect of the relay device is poor and the network coverage is unstable.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a signal compensation method, apparatus, relay device, storage medium, and program product capable of improving the network coverage effect of the relay device, especially improving the network coverage stability.

In a first aspect, the present application provides a signal compensation method for a relay device, the method comprising:

receiving a downlink communication signal, and acquiring signal parameter information and signal power data corresponding to a broadcast signal in the downlink communication signal according to the downlink communication signal;

generating an initial compensation signal corresponding to the broadcast signal according to the signal parameter information, and performing signal amplitude compensation on the initial compensation signal by utilizing the signal power data to obtain a target compensation signal;

And carrying out superposition processing on the downlink communication signal and the target compensation signal so as to compensate the broadcast signal.

In one embodiment, the signal power data includes a first power value and a target power compensation value corresponding to the broadcast signal; the signal amplitude compensation is performed on the initial compensation signal by using the signal power data to obtain a target compensation signal, including:

acquiring an amplitude compensation value according to the first power value and the target power compensation value;

and carrying out signal amplitude compensation on the initial compensation signal by using the amplitude compensation value to obtain the target compensation signal.

In one embodiment, the obtaining the amplitude compensation value according to the first power value and the target power compensation value includes:

and performing power domain conversion processing on the first power value and the target power compensation value to obtain the amplitude compensation value.

In one embodiment, the process of obtaining the target power compensation value according to the downlink communication signal includes:

acquiring a second power value of a service signal in the downlink communication signal according to the downlink communication signal;

And determining a magnitude relation between the first power value and the second power value, and determining the target power compensation value corresponding to the magnitude relation according to the magnitude relation.

In one embodiment, the obtaining, according to the downlink communication signal, the second power value of the service signal in the downlink communication signal includes:

acquiring a signal power value of each RE signal in the downlink communication signal;

for each RE signal, if the difference value between the signal power value of the RE signal and the first power value is within a preset power difference value range, determining the RE signal as an effective RE signal;

and acquiring the second power value according to the signal power value of each effective RE signal.

In one embodiment, the obtaining the second power value according to the signal power value of each valid RE signal includes:

and calculating the average value of the signal power values of the effective RE signals to obtain the second power value.

determining a plurality of target RE signals with signal power values larger than a preset power value threshold value from the effective RE signals according to the signal power values of the effective RE signals;

And calculating the average value of the signal power values of the target RE signals to obtain the second power value.

acquiring a transmission resource position of a base station for transmitting a channel state information reference signal;

and extracting the channel state information reference signal from the downlink communication signal according to the sending resource position, and carrying out power measurement on the channel state information reference signal to obtain the second power value.

In one embodiment, the acquiring the transmission resource position of the base station for transmitting the channel state information reference signal includes:

initiating a random access request to a base station, and receiving a reconfiguration message sent by the base station;

and analyzing the reconfiguration message to obtain the sending resource position.

and acquiring communication interaction information between the base station and the terminal, and analyzing the communication interaction information to obtain the position of the transmission resource.

In one embodiment, the determining, according to the size relationship, the target power compensation value corresponding to the size relationship includes:

Acquiring an initial power compensation value corresponding to the broadcast signal;

if the magnitude relation is that the first power value is smaller than the second power value, acquiring a power value difference value between the second power value and the first power value, and taking the sum value of the initial power compensation value and the power value difference value as the target power compensation value;

and if the magnitude relation is that the first power value is equal to the second power value, the initial power compensation value is taken as the target power compensation value.

In one embodiment, the obtaining the initial power compensation value corresponding to the broadcast signal includes:

detecting whether the received power of the downlink communication signal exceeds a preset maximum received power;

if the received power of the downlink communication signal exceeds the maximum received power, determining the initial power compensation value as a first value;

and if the received power of the downlink communication signal does not exceed the maximum received power, determining the initial power compensation value as a second value, wherein the first value is smaller than the second value.

Detecting whether the target power compensation value exceeds a preset maximum power compensation value;

the obtaining an amplitude compensation value according to the first power value and the target power compensation value includes:

and if the target power compensation value does not exceed the maximum power compensation value, acquiring the amplitude compensation value according to the first power value and the target power compensation value.

In one embodiment, the method further comprises:

and if the target power compensation value exceeds the maximum power compensation value, acquiring the amplitude compensation value according to the first power value and the maximum power compensation value.

In one embodiment, the signal parameter information includes timing synchronization information and frequency offset information; the generating an initial compensation signal corresponding to the broadcast signal according to the signal parameter information includes:

and generating an original compensation signal corresponding to the broadcast signal according to the timing synchronization information, and performing frequency compensation on the original compensation signal by utilizing the frequency offset information to obtain the initial compensation signal.

In a second aspect, the present application further provides a signal compensation apparatus, provided in a relay device, the apparatus including:

The acquisition module is used for receiving the downlink communication signals and acquiring signal parameter information and signal power data corresponding to broadcast signals in the downlink communication signals according to the downlink communication signals;

the compensation module is used for generating an initial compensation signal corresponding to the broadcast signal according to the signal parameter information, and carrying out signal amplitude compensation on the initial compensation signal by utilizing the signal power data to obtain a target compensation signal;

and the superposition module is used for carrying out superposition processing on the downlink communication signal and the target compensation signal so as to compensate the broadcast signal.

In a third aspect, the present application further provides a relay device. The relay device comprises a memory storing a computer program and a processor implementing the method of the first aspect described above when executing the computer program.

In a fourth aspect, the present application also provides a computer-readable storage medium. The computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the method of the first aspect described above.

In a fifth aspect, the present application also provides a computer program product. The computer program product comprising a computer program which, when executed by a processor, implements the method of the first aspect described above.

According to the signal compensation method, the device, the relay equipment, the storage medium and the program product, the downlink communication signals are received, the signal parameter information and the signal power data corresponding to the broadcast signals in the downlink communication signals are obtained according to the downlink communication signals, then the initial compensation signals corresponding to the broadcast signals are generated according to the signal parameter information, the signal amplitude compensation is carried out on the initial compensation signals by utilizing the signal power data, the target compensation signals are obtained, and then the downlink communication signals and the target compensation signals are subjected to superposition processing to compensate the broadcast signals.

Drawings

FIG. 1 is a schematic diagram of an exemplary base station transmitting signals to a relay device in one embodiment;

FIG. 2 is a diagram of an application environment for a signal compensation method in one embodiment;

FIG. 3 is a flow chart of a signal compensation method according to one embodiment;

FIG. 4 is a flow chart of signal amplitude compensation for an initial compensation signal using signal power data in one embodiment;

FIG. 5 is a flow chart illustrating a method for obtaining a target power compensation value according to a downlink communication signal according to an embodiment;

FIG. 6 is a flow chart illustrating step 501 in one embodiment;

FIG. 7 is a schematic diagram of RE signals in an exemplary downstream communication signal in one embodiment;

FIG. 8 is a flow chart illustrating step 501 in another embodiment;

FIG. 9 is a flowchart of determining a target power compensation value corresponding to a size relationship according to the size relationship in an embodiment;

FIG. 10 is a block diagram of a signal compensation device in one embodiment;

fig. 11 is an internal structural diagram of a relay device in one embodiment.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

With the rapid development of wireless communication technology, spectrum resources become increasingly stressed, and it is difficult to achieve better coverage in higher frequency bands. In order to achieve better coverage of the mobile communication network, relay (Relay) technology has emerged. The 3GPP (3 rd Generation Partnership Project, third generation partnership project) defines various relay strategies including on-frequency or off-frequency wireless relay, and so on. Relay devices (e.g., repeater) are the most commonly used relay means in current mobile communication networks due to their advantages in terms of cost, maturity, etc.

In the latest 5G (5 th Generation Mobile Communication Technology, fifth generation mobile communication technology) standard, wireless relay is also a very important coverage means, and particularly in the application of millimeter wave frequency bands, the relay technology becomes a key technology for improving 5G coverage due to the large space loss, short propagation path and poor penetration capability of electromagnetic wave signals.

Taking relay technology applied in 5G as an example, massive MIMO (Large-Scale MIMO) is a key technology for improving system capacity and spectrum utilization in 5G, and practical commercial network performance shows that even using Massive MIMO with limited 64T64R antennas, single user link performance of nearly ten times and system capacity of 4 to 8 times can be greatly improved. In order to fully exert the performance of Massive MIMO, a user-level beam management technology is introduced into 5G, so that a broadcast channel and a service channel can acquire higher beam forming gain, and the performance is improved. In this way, the base station transmits the broadcast signal and the service signal to the relay device through differently shaped beams based on the large-scale antenna technology, and the relay device forwards the broadcast signal and the service signal to the terminal.

Referring to fig. 1 for exemplary purposes, fig. 1 is a schematic diagram of an exemplary base station transmitting signals to a relay device via a beam. As shown in fig. 1, the base station transmits broadcast signals to the relay device using a relatively "fat" beam (broadcast signal beam 1 and broadcast signal beam 2 shown in fig. 1), and transmits traffic signals to the relay device using a relatively "narrow" beam (traffic signal beam 1, traffic signal beam 2, and traffic signal beam 3 shown in fig. 1), the broadcast signal beam and the traffic signal beam having different beam forms.

However, in the above communication method based on the relay device, as the power of the service signal increases, the power of the broadcast signal decreases, and the power of the broadcast signal plays a decisive role in the coverage of the relay device, which causes a phenomenon that the network coverage of the relay device changes with the change of the power of the service signal, and the network coverage effect of the relay device is poor.

In view of this, the embodiment of the application obtains the signal parameter information and the signal power data corresponding to the broadcast signal in the downlink communication signal by receiving the downlink communication signal, then generates the initial compensation signal corresponding to the broadcast signal according to the signal parameter information, compensates the signal amplitude of the initial compensation signal by using the signal power data to obtain the target compensation signal, and performs the superposition processing on the downlink communication signal and the target compensation signal to compensate the broadcast signal.

Next, an implementation environment related to the signal compensation method provided by the embodiment of the present application will be briefly described.

The signal compensation method provided by the embodiment of the application can be applied to an implementation environment shown in fig. 2. As shown in fig. 2, the implementation environment may include a base station 101, a relay device 102, and a terminal 103, where the base station 101 communicates with the relay device 102 through a network, and the relay device 102 communicates with the terminal 103 through the network.

The base station 101 may be any type of base station such as macro base station, micro base station, or pico base station; the relay device 102 may be an extended or integrated wireless relay device, or may be a radio-frequency coupled repeater, for example, a wireless repeater, an optical fiber repeater, or the like; the terminal 103 may be a personal computer, a notebook computer, a smart phone, a tablet computer, an internet of things device, and a portable wearable device, and the internet of things device may be a smart speaker, a smart television, a smart air conditioner, a smart vehicle device, and the like. The portable wearable device may be a smart watch, smart bracelet, headset, or the like.

In one embodiment, as shown in fig. 3, a signal compensation method is provided, which is illustrated by taking the application of the method to the relay device 102 in fig. 1 as an example, and includes the following steps:

Step 301, the relay device receives the downlink communication signal, and obtains signal parameter information and signal power data corresponding to the broadcast signal in the downlink communication signal according to the downlink communication signal.

The downlink communication signal may be a downlink wireless signal transmitted from the base station, and the downlink communication signal may include a broadcast signal and a traffic signal. Wherein the broadcast signal is transmitted through a physical broadcast CHannel (Physical Broadcast Channel, PBCH), and the traffic signal is transmitted through a physical downlink shared CHannel (Physical Downlink Shared chnnel, PDSCH).

The broadcast signal mainly carries MIB (Master information block ) messages, and is used to provide broadcast messages for cells for terminals to obtain the cell information needed for access in the radio access network.

In the embodiment of the application, the relay device can receive the downlink communication signal through a built-in signal receiving component, and the signal receiving component can be realized by modules such as self-adaptive gain control, an uplink amplifier, an analog-to-digital converter, a phase-locked loop and the like. After receiving the downlink communication signal issued by the base station, the relay device performs signal analysis processing on the downlink communication signal to obtain signal parameter information and signal power data corresponding to the broadcast signal in the downlink communication signal.

For example, the relay device may perform frequency shift processing, downsampling processing, PSS (primary synchronization signal )/SSS (secondary synchronization signal, secondary synchronization signal) searching, MIB decoding, and code stream parsing on the downlink communication signal, to obtain signal parameter information and signal power data corresponding to the broadcast signal.

The frequency shift process is used for changing the searching frequency point to search the downlink communication signal; the downsampling process is used for downsampling the signal searched by the frequency shift process; the PSS/SSS search is used for carrying out sliding correlation on the signal after the downsampling processing and the locally generated PSS/SSS signal (for example, a local peak-to-average ratio judgment method of a fixed window is adopted) so as to judge whether the PSS/SSS exists or not and realize the PSS/SSS position output; and the MIB decoding and the code stream analysis are used for decoding, analyzing and the like the signal after the down sampling processing according to the PSS/SSS position obtained by the PSS/SSS search to obtain signal parameter information corresponding to the broadcast signal and a first power value corresponding to the broadcast signal.

The signal parameter information includes PCI (Physical Cell ID), SFN (System Frame Number ), SSB (Synchronization Signal and PBCH block, synchronization signal and PBCH block) SCS (Sub carrier spacing ), MIB code stream information, SSB Index (SSB beam Index), 10ms timing position (initial transmission position of base station), and the like.

Optionally, the signal power data may include a target power compensation value corresponding to the broadcast signal, where the target power compensation value relates to a magnitude relation between a first power value corresponding to the broadcast signal and a second power value of a traffic signal in the downlink communication signal; optionally, the signal power data may include a first power value corresponding to the broadcast signal and a target power compensation value corresponding to the broadcast signal.

Step 302, the relay device generates an initial compensation signal corresponding to the broadcast signal according to the signal parameter information, and performs signal amplitude compensation on the initial compensation signal by using the signal power data to obtain a target compensation signal.

After the relay device acquires the signal parameter information, generating waveform data of a broadcast channel according to a 3GPP protocol to obtain an initial compensation signal, wherein the initial compensation signal can be a broadcast signal with normalized amplitude of 1.

In a possible implementation manner, the signal parameter information includes timing synchronization information and frequency offset information, the timing synchronization information may be information such as PCI, SFN, SSB SCS, MIB code stream information, SSB Index, and 10ms timing position, and the relay device may generate an original compensation signal corresponding to the broadcast signal according to the timing synchronization information, and perform frequency compensation on the original compensation signal by using the frequency offset information to obtain an initial compensation signal, so as to implement a process of generating the initial compensation signal corresponding to the broadcast signal according to the signal parameter information.

Assuming that the frequency offset of the broadcast signal of the frequency offset information representation base station is f, the relay equipment also compensates the f frequency offset for the original compensation signal, so that the frequency offset of the original compensation signal is ensured to be consistent with the frequency offset of the broadcast signal, and the accuracy of signal compensation is improved.

The relay device then performs signal amplitude compensation on the initial compensation signal using the signal power data. In the following, the process of signal amplitude compensation of an initial compensation signal by a relay device using signal power data is briefly described in two different embodiments.

In one possible implementation manner, taking an example that the signal power data includes a target power compensation value corresponding to the broadcast signal, the relay device may perform power domain conversion on the target power compensation value, convert the target power compensation value into a logarithmic domain, obtain an amplitude compensation value, and perform signal amplitude compensation on the initial compensation signal by using the amplitude compensation value by the terminal, to obtain the target compensation signal.

In another possible implementation manner, the signal power data may include the first power value corresponding to the broadcast signal and the target power compensation value corresponding to the broadcast signal, referring to fig. 4, the relay device may perform step 401 and step 402 shown in fig. 4 to implement a process of performing signal amplitude compensation on the initial compensation signal by using the signal power data to obtain the target compensation signal:

In step 401, the relay device obtains an amplitude compensation value according to the first power value and the target power compensation value.

In the embodiment of the application, the relay device can perform power domain conversion processing on the first power value and the target power compensation value to obtain the amplitude compensation value.

Illustratively, the relay device may perform power domain conversion processing on the first power value SS-RSRP and the target power compensation value P to obtain the amplitude compensation value a by the following formula:

in one possible implementation manner, before the relay device obtains the amplitude compensation value according to the first power value and the target power compensation value, the relay device may further detect whether the target power compensation value exceeds a preset maximum power compensation value, so that if the target power compensation value does not exceed the maximum power compensation value, the relay device obtains the amplitude compensation value according to the first power value and the target power compensation value.

If the target power compensation value exceeds the maximum power compensation value, the relay device can acquire the amplitude compensation value according to the first power value and the maximum power compensation value, so that compensation protection can be realized, and compensation errors caused by infinite increase of the amplitude compensation value are avoided.

In step 402, the relay device performs signal amplitude compensation on the initial compensation signal by using the amplitude compensation value, so as to obtain a target compensation signal.

As described above, the initial compensation signal may be a broadcast signal having an amplitude of 1 in a normalized manner, and thus the relay device amplifies the amplitude of the initial compensation signal by a corresponding multiple using the amplitude compensation value to obtain the target compensation signal.

It will be appreciated that the magnitude of the target compensation signal is the magnitude of the magnitude characterized by the magnitude compensation value.

In step 303, the relay device performs superposition processing on the downlink communication signal and the target compensation signal to compensate for the broadcast signal.

After the relay device acquires the target compensation signal, the relay device can realize time domain alignment addition of the target compensation signal and the downlink communication signal in a digital domain, so that superposition processing is realized on the downlink communication signal and the target compensation signal, and a broadcast signal in the downlink communication signal is enhanced after the superposition processing, namely, compensation on the broadcast signal is realized.

And the relay equipment performs superposition processing on the downlink communication signal and the target compensation signal and then outputs a signal obtained after the superposition processing to the terminal.

As an embodiment, the relay device may also perform 10ms timing maintenance and SFN update in the system: the relay device periodically tracks the timing offset value of the broadcast signal by performing PSS/SSS search and MIB decoding and code stream parsing processes, and then performs timing offset adjustment.

Wherein the timing deviation value is equal to the difference between the 10ms timing position of the base station (the 10ms timing position coincides with the 10ms timing position included in the signal parameter information described above, and all refer to the initial transmission position of the base station) and the 10ms timing position of the relay device.

The timing offset adjustment can quickly adjust the timing position of 10ms, so that the time alignment of the relay equipment and the base station is realized. The frequency offset adjustment method comprises the following steps: 1) The frequency of the crystal oscillator is adjusted by adopting a voltage-controlled oscillator mode, so that the frequency alignment of the relay equipment and the base station is realized; 2) Frequency offset alignment is achieved by adopting a digital frequency adjustment mechanism, wherein the digital frequency adjustment mechanism can adopt a hundred ms level counter, and frequency adjustment is achieved by adjusting the upper limit value of the counter.

After the time frequency offset adjustment, the relay device may perform PDCCH (Physical Downlink Control Channel ) search and PDSCH (Physical Downlink Shared CHannel, physical downlink shared channel) search on the signal after the time frequency offset adjustment to search for the Sib1 and Si signals, and analyze the searched Sib1 and Si signals to obtain timeslot ratio information and base station operator PLMN information.

In this way, the relay device can determine the transmission slot of the relay device based on the slot ratio information, so that the signal obtained after the superimposition processing is output to the terminal at the determined transmission slot.

According to the embodiment, the downlink communication signals are received, the signal parameter information and the signal power data corresponding to the broadcast signals in the downlink communication signals are obtained according to the downlink communication signals, then the initial compensation signals corresponding to the broadcast signals are generated according to the signal parameter information, the signal amplitude compensation is carried out on the initial compensation signals by utilizing the signal power data to obtain the target compensation signals, and then the downlink communication signals and the target compensation signals are subjected to superposition processing to compensate the broadcast signals.

In addition, the embodiment of the application can realize the amplitude balance of the broadcast signal beam and the business signal beam of the base station, especially the AAU base station, by compensating the broadcast signal, and reduce the fluctuation of the output broadcast signal caused by beam forming.

In one embodiment, referring to fig. 5, based on the embodiment shown in fig. 4, this embodiment relates to a procedure how the relay device obtains the target power compensation value according to the downlink communication signal. As shown in fig. 5, the process includes steps 501 and 502:

In step 501, the relay device obtains a second power value of the service signal in the downlink communication signal according to the downlink communication signal.

As described above, the downlink communication signals transmitted by the base station may include broadcast signals and traffic signals, which are transmitted through a Physical Downlink Shared CHannel (PDSCH).

In the following, a procedure for the relay device to obtain the second power value of the traffic signal in the downlink communication signal according to the downlink communication signal will be briefly described by several different embodiments.

In one possible implementation of step 501, referring to fig. 6, step 501 may include step 601, step 602, and step 603 shown in fig. 6:

in step 601, the relay device obtains a signal power value of each RE signal in the downlink communication signal.

One subcarrier in frequency and one symbol in time domain are called one RE (Resource Element), and the number of RE signals is positively correlated with the service bandwidth corresponding to the downlink communication signal, for example, the service bandwidth is 100m, and the number of RE signals may be 3000 at maximum.

And the relay equipment obtains the signal power value of each RE signal in the downlink communication signal through power measurement.

In step 602, for each RE signal, if the difference between the signal power value and the first power value of the RE signal is within the preset power difference range, the relay device determines that the RE signal is a valid RE signal.

The relay device makes a difference between the signal power value of each RE signal and the first power value of the broadcast signal, and detects whether the difference value corresponding to each RE signal is within a preset power difference range, wherein the power difference range may be a value range fluctuating around 0, and the power difference range may be manually and empirically set.

If the difference between the signal power value and the first power value of a certain RE signal is within the power difference range, the power difference between the RE signal and the broadcast signal is not very large, so as to determine that the RE signal is a valid RE signal.

Otherwise, if the difference between the signal power value and the first power value of a certain RE signal is not within the power difference range, the power difference between the RE signal and the broadcast signal is larger, so as to determine that the RE signal is not a valid RE signal.

Referring to fig. 7 for an example, fig. 7 is a schematic diagram of RE signals in an example downlink communication signal. As shown in fig. 7, each small box is an RE signal; in fig. 7, the difference between the signal power value and the first power value of each RE signal in the first area (the area within the two dashed boxes) is within the preset power difference range, that is, each RE signal in the first area is an effective RE signal; in fig. 7, the difference between the signal power value and the first power value of each RE signal in the second area (except for the other areas in the two dashed boxes) is not within the power difference range, i.e., each RE signal in the second area is not a valid RE signal.

In step 603, the relay device obtains a second power value according to the signal power value of each valid RE signal.

After obtaining the signal power values of the effective RE signals, the relay equipment obtains a second power value in a statistical average mode.

Alternatively, the relay device may calculate an average value of the signal power values of the effective RE signals to obtain a second power value, thereby implementing the process of step 603.

Optionally, the relay device may further determine, from the valid RE signals, a plurality of target RE signals with signal power values greater than a preset power value threshold according to the signal power values of the valid RE signals, and then, the relay device calculates an average value of the signal power values of the target RE signals to obtain a second power value, that is, the relay device selects, from the valid RE signals, a plurality of target RE signals with the largest signal power values as a basis of statistical average, so as to implement the process of step 603.

In another possible implementation of step 501, referring to fig. 8, step 501 may include step 801 and step 802 shown in fig. 8:

in step 801, the relay device obtains a transmission resource location where the base station transmits a channel state information reference signal.

For beams of the traffic channel, the base station transmits a plurality of CSI-RSs (Channel State Information-Reference signals), each (or a plurality of) CSI-RS corresponds to a beam direction, and the relay device acquires a transmission resource location of each of the CSI-RSs.

Optionally, the relay device may simulate the terminal to initiate a random access request to the base station, and receive a reconfiguration message sent by the base station, where the relay device analyzes the reconfiguration message to obtain a sending resource location.

Optionally, the relay device may further acquire communication interaction information between the base station and the terminal by adopting a signaling tracking manner, and analyze the communication interaction information to obtain a transmission resource position indicated by the base station to the terminal.

Step 802, the relay device extracts the channel state information reference signal from the downlink communication signal according to the transmission resource position, and performs power measurement on the channel state information reference signal to obtain a second power value.

The relay device traverses beams of all service signals according to the accurate sending resource position information, accurately measures the power of the CSI-RS, and obtains a second power value of the service signals.

In step 502, the relay device determines a magnitude relation between the first power value and the second power value, and determines a target power compensation value corresponding to the magnitude relation according to the magnitude relation.

After the relay device obtains the second power value of the service signal in the downlink communication signal according to the downlink communication signal, the relay device continues to determine a target power compensation value matched with the size relation according to the size relation between the first power value and the second power value.

In this way, the above embodiment automatically and effectively measures the power of the service signal in the downlink communication signal through different embodiments, and the calculation amount of the relay device in the measurement process is small, which is beneficial to saving the power consumption of the relay device.

In one embodiment, referring to fig. 9, based on the embodiment shown in fig. 5, this embodiment relates to a process how the relay device determines a target power compensation value corresponding to a size relationship according to the size relationship. As shown in fig. 9, the process may include step 901, step 902, and step 903:

in step 901, the relay device acquires an initial power compensation value corresponding to the broadcast signal.

Alternatively, the initial power compensation value may be an initialized power compensation value, for example, 0dB.

Optionally, the relay device may detect whether the received power of the downlink communication signal exceeds a preset maximum received power, if the received power of the downlink communication signal exceeds the maximum received power, the relay device determines the initial power compensation value as a first value, and if the received power of the downlink communication signal does not exceed the maximum received power, the relay device determines the initial power compensation value as a second value, where the first value is smaller than the second value.

The maximum received power may be determined by a hardware condition of the relay device, or may be configured by the base station, and the first value may be a maximum received power minus a received power of the downlink communication signal if the received power of the downlink communication signal exceeds the maximum received power, and the second value may be an initialized power compensation value, for example, 0dB if the received power of the downlink communication signal does not exceed the maximum received power.

In step 902, if the magnitude relation is that the first power value is smaller than the second power value, the relay device obtains a power value difference between the second power value and the first power value, and takes a sum of the initial power compensation value and the power value difference as a target power compensation value.

As described above, the downlink communication signal may include a broadcast signal and a traffic signal, and as the power of the traffic signal increases, the power of the broadcast channel is suppressed, i.e., the power of the broadcast signal decreases. In the embodiment of the application, if the first power value of the broadcast signal is detected to be smaller than the second power value of the service signal, the relay device subtracts the first power value from the second power value to obtain a power value difference, and takes the sum of the initial power compensation value and the power value difference as the target power compensation value, so that the power of the broadcast signal is increased, and the poor coverage effect caused by pressing the power of the broadcast channel is avoided.

In step 903, if the magnitude relation is that the first power value is equal to the second power value, the relay device takes the initial power compensation value as the target power compensation value.

If the first power value of the broadcast signal is equal to the second power value of the service signal, the power difference between the service signal and the broadcast signal does not need to be compensated for the broadcast signal, so that the initial power compensation value is directly used as the target power compensation value. As described above, the initial power compensation value may be the first value or the second value described above.

In this way, in the above embodiment, the target power compensation value corresponding to the broadcast signal is determined according to the magnitude relation between the first power value of the broadcast signal and the second power value of the service signal, and then the signal amplitude compensation is performed on the initial compensation signal according to the target power compensation value or according to the first power value of the broadcast signal and the target power compensation value, so as to obtain the target compensation signal, compensate the broadcast signal, and improve the coverage effect of the broadcast signal.

In one embodiment, a signal compensation method is provided for a relay device, the method comprising:

and a step a, the relay equipment receives the downlink communication signals and acquires signal parameter information and signal power data corresponding to broadcast signals in the downlink communication signals according to the downlink communication signals.

The signal parameter information comprises timing synchronization information and frequency offset information; the signal power data includes a first power value corresponding to the broadcast signal and a target power compensation value.

The process of obtaining the target power compensation value according to the downlink communication signal comprises the following steps: acquiring a second power value of a service signal in the downlink communication signal according to the downlink communication signal; and determining a magnitude relation between the first power value and the second power value, and determining a target power compensation value corresponding to the magnitude relation according to the magnitude relation.

Optionally, obtaining the second power value of the service signal in the downlink communication signal according to the downlink communication signal includes: acquiring a signal power value of each RE signal in a downlink communication signal; for each RE signal, if the difference value between the signal power value and the first power value of the RE signal is within the preset power difference value range, determining the RE signal as an effective RE signal; after determining the effective RE signals, calculating an average value of signal power values of each effective RE signal to obtain a second power value, or determining a plurality of target RE signals with signal power values greater than a preset power value threshold from each effective RE signal according to the signal power values of each effective RE signal, and then calculating an average value of signal power values of each target RE signal to obtain the second power value.

Optionally, obtaining the second power value of the service signal in the downlink communication signal according to the downlink communication signal includes: acquiring a transmission resource position of a base station for transmitting a channel state information reference signal; and extracting a channel state information reference signal from the downlink communication signal according to the transmission resource position, and carrying out power measurement on the channel state information reference signal to obtain a second power value. The method for acquiring the transmission resource position of the base station for transmitting the channel state information reference signal comprises the following steps: initiating a random access request to a base station and receiving a reconfiguration message sent by the base station; analyzing the reconfiguration message to obtain a sending resource position; or, acquiring a transmission resource position of a base station for transmitting a channel state information reference signal, including: and acquiring communication interaction information between the base station and the terminal, and analyzing the communication interaction information to obtain the position of the transmission resource.

According to the size relation, determining a target power compensation value corresponding to the size relation comprises the following steps: detecting whether the received power of the downlink communication signal exceeds a preset maximum received power; if the received power of the downlink communication signal exceeds the maximum received power, determining an initial power compensation value as a first value; if the received power of the downlink communication signal does not exceed the maximum received power, determining an initial power compensation value as a second value, wherein the first value is smaller than the second value; if the magnitude relation is that the first power value is smaller than the second power value, acquiring a power value difference value between the second power value and the first power value, and taking the sum value of the initial power compensation value and the power value difference value as a target power compensation value; and if the magnitude relation is that the first power value is equal to the second power value, taking the initial power compensation value as a target power compensation value.

And b, the relay equipment generates an original compensation signal corresponding to the broadcast signal according to the timing synchronization information, and frequency compensates the original compensation signal by utilizing the frequency offset information to obtain an initial compensation signal.

And c, the relay equipment performs power domain conversion processing on the first power value and the target power compensation value to obtain an amplitude compensation value.

And d, the relay equipment performs signal amplitude compensation on the initial compensation signal by using the amplitude compensation value to obtain a target compensation signal.

And e, the relay equipment performs superposition processing on the downlink communication signal and the target compensation signal so as to compensate the broadcast signal.

It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.

Based on the same inventive concept, the embodiment of the application also provides a signal compensation device for realizing the above-mentioned signal compensation method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in the embodiments of the signal compensation device or devices provided below may be referred to the limitation of the signal compensation method hereinabove, and will not be repeated here.

In one embodiment, as shown in fig. 10, there is provided a signal compensation apparatus comprising:

an obtaining module 1001, configured to receive a downlink communication signal, and obtain signal parameter information and signal power data corresponding to a broadcast signal in the downlink communication signal according to the downlink communication signal;

the compensation module 1002 is configured to generate an initial compensation signal corresponding to the broadcast signal according to the signal parameter information, and perform signal amplitude compensation on the initial compensation signal by using the signal power data to obtain a target compensation signal;

and a superposition module 1003, configured to perform superposition processing on the downlink communication signal and the target compensation signal, so as to compensate the broadcast signal.

Optionally, the signal power data includes a first power value and a target power compensation value corresponding to the broadcast signal; the compensation module 1002 includes:

a first obtaining unit, configured to obtain an amplitude compensation value according to the first power value and the target power compensation value;

and the first compensation unit is used for carrying out signal amplitude compensation on the initial compensation signal by utilizing the amplitude compensation value to obtain the target compensation signal.

Optionally, the first obtaining unit is specifically configured to perform power domain conversion processing on the first power value and the target power compensation value to obtain the amplitude compensation value.

Optionally, the obtaining module 1001 includes:

a second obtaining unit, configured to obtain a second power value of a service signal in the downlink communication signal according to the downlink communication signal;

and the determining unit is used for determining the magnitude relation between the first power value and the second power value and determining the target power compensation value corresponding to the magnitude relation according to the magnitude relation.

Optionally, the second acquiring unit is specifically configured to acquire a signal power value of each RE signal in the downlink communication signal; for each RE signal, if the difference value between the signal power value of the RE signal and the first power value is within a preset power difference value range, determining the RE signal as an effective RE signal; and acquiring the second power value according to the signal power value of each effective RE signal.

Optionally, the second obtaining unit is specifically configured to calculate an average value of signal power values of the effective RE signals, to obtain the second power value.

Optionally, the second obtaining unit is specifically configured to determine, from each of the valid RE signals, a plurality of target RE signals with signal power values greater than a preset power value threshold according to the signal power value of each of the valid RE signals; and calculating the average value of the signal power values of the target RE signals to obtain the second power value.

Optionally, the second obtaining unit is specifically configured to obtain a transmission resource position of the base station for transmitting the channel state information reference signal; and extracting the channel state information reference signal from the downlink communication signal according to the sending resource position, and carrying out power measurement on the channel state information reference signal to obtain the second power value.

Optionally, the second obtaining unit is specifically configured to initiate a random access request to a base station, and receive a reconfiguration message sent by the base station; and analyzing the reconfiguration message to obtain the sending resource position.

Optionally, the second obtaining unit is specifically configured to obtain communication interaction information between the base station and the terminal, and parse the communication interaction information to obtain the sending resource location.

Optionally, the determining unit is specifically configured to obtain an initial power compensation value corresponding to the broadcast signal; if the magnitude relation is that the first power value is smaller than the second power value, acquiring a power value difference value between the second power value and the first power value, and taking the sum value of the initial power compensation value and the power value difference value as the target power compensation value; and if the magnitude relation is that the first power value is equal to the second power value, the initial power compensation value is taken as the target power compensation value.

Optionally, the determining unit is specifically configured to detect whether the received power of the downlink communication signal exceeds a preset maximum received power; if the received power of the downlink communication signal exceeds the maximum received power, determining the initial power compensation value as a first value; and if the received power of the downlink communication signal does not exceed the maximum received power, determining the initial power compensation value as a second value, wherein the first value is smaller than the second value.

Optionally, the first obtaining unit is specifically configured to detect whether the target power compensation value exceeds a preset maximum power compensation value; and if the target power compensation value does not exceed the maximum power compensation value, acquiring the amplitude compensation value according to the first power value and the target power compensation value.

Optionally, the first obtaining unit is further configured to obtain the amplitude compensation value according to the first power value and the maximum power compensation value if the target power compensation value exceeds the maximum power compensation value.

Optionally, the signal parameter information includes timing synchronization information and frequency offset information; the compensation module 1002 further comprises:

and the second compensation unit is used for generating an original compensation signal corresponding to the broadcast signal according to the timing synchronization information, and carrying out frequency compensation on the original compensation signal by utilizing the frequency offset information to obtain the initial compensation signal.

The respective modules in the above-described signal compensation apparatus may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or independent of a processor in the relay device, or may be stored in software in a memory in the relay device, so that the processor may call and execute operations corresponding to the above modules.

In one embodiment, a relay device is provided, which may be a server, and an internal structure thereof may be as shown in fig. 11. The relay device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the relay device is configured to provide computing and control capabilities. The memory of the relay device includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the relay device is used to store signal compensation data. The network interface of the relay device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a signal compensation method.

It will be appreciated by those skilled in the art that the structure shown in fig. 11 is merely a block diagram of a portion of the structure associated with the present inventive arrangements and is not limiting of the relay apparatus to which the present inventive arrangements are applied, and that a particular relay apparatus may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, a relay device is provided, comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:

In one embodiment, the signal power data includes a first power value and a target power compensation value corresponding to the broadcast signal, and the processor when executing the computer program further implements the following steps:

In one embodiment, the processor when executing the computer program further performs the steps of:

In one embodiment, the signal parameter information includes timing synchronization information and frequency offset information, and the processor when executing the computer program further performs the steps of:

In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:

In one embodiment, the signal power data includes a first power value and a target power compensation value corresponding to the broadcast signal, and the computer program when executed by the processor further implements the steps of:

In one embodiment, the computer program when executed by the processor further performs the steps of:

In one embodiment, the signal parameter information includes timing synchronization information and frequency offset information, and the computer program when executed by the processor further performs the steps of:

In one embodiment, a computer program product is provided comprising a computer program which, when executed by a processor, performs the steps of:

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.

Claims

1. A method of signal compensation for a relay device, the method comprising:

receiving a downlink communication signal, and acquiring signal parameter information and signal power data corresponding to a broadcast signal in the downlink communication signal according to the downlink communication signal; the signal power data comprises a first power value and a target power compensation value corresponding to the broadcast signal;

performing superposition processing on the downlink communication signal and the target compensation signal to compensate the broadcast signal;

the process for obtaining the target power compensation value comprises the following steps:

acquiring a second power value of a service signal in the downlink communication signal;

2. The signal compensation method of claim 1 wherein said performing signal amplitude compensation on said initial compensation signal using said signal power data to obtain a target compensation signal comprises:

3. The signal compensation method of claim 2 wherein said obtaining an amplitude compensation value from said first power value and said target power compensation value comprises:

4. The signal compensation method according to claim 1, wherein the obtaining a second power value of a traffic signal in the downlink communication signal according to the downlink communication signal includes:

5. The signal compensation method of claim 4 wherein said obtaining said second power value based on a signal power value of each of said effective RE signals comprises:

6. The signal compensation method of claim 4 wherein said obtaining said second power value based on a signal power value of each of said effective RE signals comprises:

7. The signal compensation method according to claim 1, wherein the obtaining a second power value of a traffic signal in the downlink communication signal according to the downlink communication signal includes:

8. The signal compensation method according to claim 7, wherein the acquiring a transmission resource position of a base station for transmitting a channel state information reference signal includes:

9. The signal compensation method according to claim 7, wherein the acquiring a transmission resource position of a base station for transmitting a channel state information reference signal includes:

10. The signal compensation method according to claim 1, wherein the determining the target power compensation value corresponding to the magnitude relation according to the magnitude relation includes:

11. The signal compensation method according to claim 10, wherein the obtaining the initial power compensation value corresponding to the broadcast signal includes:

12. The signal compensation method of claim 2 wherein said obtaining an amplitude compensation value from said first power value and said target power compensation value comprises:

13. The signal compensation method of claim 12, wherein the method further comprises:

14. The signal compensation method of claim 1 wherein the signal parameter information comprises timing synchronization information and frequency offset information; the generating an initial compensation signal corresponding to the broadcast signal according to the signal parameter information includes:

15. A signal compensation apparatus provided in a relay device, the apparatus comprising:

the acquisition module is used for receiving the downlink communication signals and acquiring signal parameter information and signal power data corresponding to broadcast signals in the downlink communication signals according to the downlink communication signals; the signal power data comprises a first power value and a target power compensation value corresponding to the broadcast signal;

the superposition module is used for carrying out superposition processing on the downlink communication signal and the target compensation signal so as to compensate the broadcast signal;

the acquisition module further includes:

a second obtaining unit, configured to obtain a second power value of a service signal in the downlink communication signal;

16. A relay device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 14 when the computer program is executed.

17. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 14.