Repeater, communication method and communication system

Abstract

The invention discloses a repeater, a communication method and a communication system, which are applied to the technical field of wireless communication. The repeater comprises a radio frequency channel and a communication control module. Wherein the radio frequency channel is used for receiving a communication signal; transmitting the communication signal; the communication signal is an interaction signal between the base station and the first terminal device. And the communication control module is used for receiving a control signal, wherein the control signal is used for indicating to adjust uplink hardware parameters of the radio frequency channel. And adjusting uplink hardware parameters of the radio frequency channel according to the control signal. In the embodiment of the invention, the uplink communication link of the repeater can improve the bottom noise of the base station so as to worsen the uplink coverage range of the base station. According to the embodiment of the invention, the uplink hardware parameters of the radio frequency channel are adjusted, so that the interference of the uplink communication link of the repeater on the base station can be reduced.

Description

Technical Field

[0001] This application relates to the field of wireless communication technologies, and in particular, to a repeater, a communication method, and a communication system. Background Art

[0002] In a communication system based on wireless communication, a base station is provided. A terminal device interacts with the base station for communication signals to achieve wireless communication. However, in some application scenarios, there are obstacles between the signal transmission paths of the base station and some terminal devices, making these terminal devices in the coverage blind area of the base station, thus affecting wireless communication.

[0003] An existing solution is as follows: A repeater is set in the communication system, and the repeater includes a radio frequency channel. Based on the radio frequency channel, the communication signals between the base station and the terminal devices in the coverage blind area of the base station are relayed, so that the base station can communicate with the terminal devices in the coverage blind area. However, in this implementation, the communication performance of the base station is relatively low, which is mainly manifested in two aspects: On the one hand, the uplink communication signal sent by the radio frequency channel to the base station (that is, the communication signal transmitted by the terminal device to the base station) will cause noise interference to the base station, thus deteriorating the communication performance of the base station. On the other hand, the base station cannot distinguish and identify the directly communicating terminal devices and the terminal devices that establish communication based on the repeater, and thus cannot provide differentiated services for the terminal device users in the coverage area and the terminal device users in the coverage blind area. Summary of the Invention

[0004] Embodiments of this application provide a repeater, a communication method, and a communication system, which improve the communication performance of the base station.

[0005] To achieve the above object, the embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, an embodiment of this application provides a communication method, which is applied to a repeater. The repeater includes a radio frequency channel. The method includes: receiving a communication signal based on the radio frequency channel and sending the communication signal; the communication signal is an interaction signal between a base station and a first terminal device. Receiving a control signal, where the control signal is used to instruct to adjust the uplink hardware parameters of the radio frequency channel. Adjusting the uplink hardware parameters of the radio frequency channel according to the control signal.

[0007] In the embodiment of the present application, the repeater receives the first uplink communication signal sent by the first terminal device and sends the first uplink communication signal to the base station based on the uplink communication link of the radio frequency channel. However, when the uplink communication link of the repeater is working, in addition to transmitting the first uplink communication signal, it will also transmit a certain amount of interference noise to the base station, thereby increasing the base noise of the base station and deteriorating the uplink coverage range of the base station. In this solution, when the uplink communication link of the radio frequency channel is working, by receiving a control signal and modulating the uplink hardware parameters of the radio frequency channel based on the control signal, the uplink interference noise can be reduced as much as possible on the basis of realizing normal wireless communication, so as to improve the communication performance of the base station.

[0008] In a possible implementation manner, the radio frequency channel includes an adjustable band-pass filter. The adjustable band-pass filter is used to filter the communication signal. The control signal includes frequency domain adjustment information. Adjusting the uplink hardware parameters of the radio frequency channel according to the control signal includes: adjusting the working frequency domain of the adjustable band-pass filter according to the frequency domain adjustment information. In the embodiment of the present application, the working frequency domain of the band-pass filter in the uplink communication link of the radio frequency channel determines the frequency domain range of the uplink noise signal. Therefore, by setting the adjustable band-pass filter and adjusting the working frequency domain of the adjustable band-pass filter based on the control signal, the uplink working frequency domain range can be reduced as much as possible while ensuring the normal operation of the uplink communication link of the repeater.

[0009] In a possible implementation manner, the control signal includes working time slot information. Adjusting the uplink hardware parameters of the radio frequency channel according to the control signal includes: controlling the start working time of the uplink communication function of the radio frequency channel according to the working time slot information. In the embodiment of the present application, the start working time of the uplink communication power can be controlled through the working time slot information. For example, the uplink communication function is turned off during the time period when the uplink communication link of the repeater does not need to transmit the first uplink communication signal, so as to avoid the influence of the uplink interference noise during the time period without the first uplink communication signal on the base station.

[0010] In a possible implementation manner, the radio frequency channel further includes a power amplifier. The power amplifier is used to amplify the power of the communication signal. The control signal includes gain adjustment information. Adjusting the uplink hardware parameters of the radio frequency channel according to the control signal includes: adjusting the uplink amplification gain of the power amplifier according to the gain adjustment information. In the embodiment of the present application, the uplink amplification gain of the power amplifier can be adjusted so as to reduce the uplink amplification gain as much as possible on the basis of ensuring the normal operation of the uplink communication link, thereby reducing the power of the amplified uplink noise signal.

[0011] In a possible implementation, the repeater further includes a power detection circuit. The power detection circuit is coupled to the radio frequency channel. The method further includes: obtaining a power signal based on the power detection circuit, where the power signal is used to indicate the uplink power value of the radio frequency channel. Controlling the opening or closing of the uplink communication function of the radio frequency channel according to the power signal. In the embodiments of the present application, a power detection circuit for power detection can be provided in the repeater. The uplink power value of the uplink communication link of the repeater is detected based on the power detection circuit. Based on the uplink power value, it is determined whether there is a first uplink communication signal that needs to be transmitted in the repeater currently. The uplink communication function can be turned off during the time when there is no first uplink communication that needs to be transmitted, so as to reduce the uplink noise signal during these times.

[0012] In a possible implementation, the method further includes: performing signal processing on the communication signal based on the radio frequency channel to obtain a processed communication signal, where the processed communication signal has characteristic information, and the characteristic information is used to indicate the identifier of the repeater. In the embodiments of the present application, signal processing can be performed on the communication signal transmitted by the repeater. Generally, there are no devices related to baseband processing in the repeater. The repeater does not perform processing such as decoding and encoding on the transmitted communication signal. In the embodiments of the present application, based on the hardware circuit of the radio frequency channel, characteristic information is set on the communication signal in a signal processing manner. The base station or the first terminal device that interacts with the repeater through the communication signal can determine that the received communication signal comes from the relay of the repeater through the characteristic information and can perform corresponding identification operations.

[0013] In a possible implementation, the communication signal includes a first uplink communication signal, and the first uplink communication signal is a signal sent by the first terminal device to the base station based on the repeater. The first uplink communication signal includes a pilot reference signal. The above-mentioned signal processing of the communication signal includes: setting a signal vacancy interval during the duration of the pilot reference signal, and the signal vacancy interval is the characteristic information. In the embodiments of the present application, a signal vacancy interval can be set for the pilot reference signal in the first uplink communication signal. Subsequently, the base station distinguishes and identifies the second terminal device that communicates directly and the second terminal device that communicates indirectly based on the repeater according to the signal vacancy interval of the pilot reference signal in the received first uplink communication signal.

[0014] In a possible implementation manner, the communication signal includes a first uplink communication signal and a downlink communication signal. The first uplink communication signal is a signal sent by a first terminal device to a base station based on a repeater. The downlink communication signal is a signal sent by the base station to the first terminal device based on the repeater. The downlink communication signal includes a channel state reference signal. The signal processing of the communication signal includes: setting a signal gap interval during the duration of the channel state reference signal, and the signal gap interval is the characteristic information. Receiving the first uplink communication signal from the first terminal device and sending the first uplink communication signal to the base station. The first uplink communication signal includes terminal response information, and the terminal response information is used to determine that the first terminal device has received the downlink communication signal. In the embodiments of the present application, a signal gap interval can be set on the downlink communication signal sent by the base station as the characteristic information. The first terminal device identifies that the downlink communication signal comes from the relay of the repeater according to the characteristic information in the received downlink communication signal, and can correspondingly send a first uplink communication signal with a terminal response signal. Subsequently, the base station realizes the distinction and identification of the second terminal device for direct communication and the second terminal device for indirect communication based on the repeater according to the terminal response signal in the received first uplink communication signal.

[0015] In a possible implementation manner, the radio frequency channel includes a time delay circuit. The communication signal includes a first uplink communication signal, and the first uplink communication signal is a signal sent by a first terminal device to a base station based on a repeater. The signal processing of the communication signal includes: increasing the signal time delay of the first uplink communication signal based on the time delay circuit, and the signal time delay of the first uplink communication signal is the characteristic information. In the embodiments of the present application, the signal time delay of the first uplink communication signal can be increased through the time delay circuit. Subsequently, the base station realizes the distinction and identification of the second terminal device for direct communication and the second terminal device for indirect communication based on the repeater according to the magnitude of the signal time delay in the received first uplink communication signal.

[0016] In a second aspect, the embodiments of the present application further provide a communication method, which is applied to a repeater. The repeater includes a radio frequency channel. The method includes: receiving a communication signal, where the communication signal is an interaction signal between a base station and a first terminal device; performing signal processing on the communication signal based on the radio frequency channel to obtain a processed communication signal, and the processed communication signal has characteristic information, and the characteristic information is used to indicate the identifier of the repeater; and sending the processed communication signal.

[0017] In a possible implementation manner, the communication signal includes a first uplink communication signal, and the first uplink communication signal is a signal sent by a first terminal device to a base station based on a repeater. The first uplink communication signal includes a pilot reference signal. The signal processing of the communication signal includes: setting a signal gap interval during the duration of the pilot reference signal, and the signal gap interval is the characteristic information.

[0018] In a possible implementation, the communication signal includes a first uplink communication signal and a downlink communication signal. The first uplink communication signal is a signal sent by a first terminal device to a base station based on a repeater, and the downlink communication signal is a signal sent by the base station to the first terminal device based on the repeater. The downlink communication signal includes a channel state reference signal. The signal processing of the communication signal includes: setting a signal gap interval during the duration of the channel state reference signal, and the signal gap interval is the characteristic information. Receiving the first uplink communication signal from the first terminal device and sending the first uplink communication signal to the base station. The first uplink communication signal includes terminal response information, and the terminal response information is used to indicate that the first uplink communication signal is a signal sent by the first terminal device based on the repeater.

[0019] In a possible implementation, the radio frequency channel includes a time delay circuit. The communication signal includes a first uplink communication signal, and the first uplink communication signal is a signal sent by a first terminal device to a base station based on a repeater. The signal processing of the communication signal includes: increasing the signal time delay of the first uplink communication signal based on the time delay circuit, and the signal time delay of the first uplink communication signal is the characteristic information.

[0020] In a third aspect, an embodiment of the present application further provides a communication method, which is applied to a base station. The method includes: receiving an uplink communication signal, where the uplink communication signal includes a first uplink communication signal and / or a second uplink communication signal. The first uplink communication signal is a signal transmitted by a first terminal device to the base station through a repeater, and the first uplink communication signal carries characteristic information or terminal response information. The characteristic information is used to indicate the identifier of the repeater, and the terminal response information is used to indicate that the first uplink communication signal is a signal sent by the first terminal device based on the repeater; the second uplink communication signal is a signal transmitted by a second terminal device to the base station. Distinguishing the first terminal device and the second terminal device based on the characteristic information and / or the terminal response information, and distinguishing different repeaters.

[0021] In a fourth aspect, an embodiment of the present application further provides a repeater, which includes a radio frequency channel and a communication control module. Among them: The radio frequency channel is used for: receiving a communication signal. Sending a communication signal. The communication signal is an interaction signal between a base station and a first terminal device. The communication control module is used for: receiving a control signal, and the control signal is used to indicate adjusting the uplink hardware parameters of the radio frequency channel. Adjusting the uplink hardware parameters of the radio frequency channel according to the control signal.

[0022] In a possible implementation, the radio frequency channel includes an adjustable band-pass filter. The adjustable band-pass filter is used for filtering the communication signal. The control signal includes frequency domain adjustment information. The above-mentioned adjusting the uplink hardware parameters of the radio frequency channel according to the control signal includes: adjusting the operating frequency domain of the adjustable band-pass filter according to the frequency domain adjustment information.

[0023] In a possible implementation, the control signal includes working time slot information. Adjusting the uplink hardware parameters of the radio frequency channel according to the control signal includes: controlling the start time of the uplink communication function of the radio frequency channel according to the working time slot information.

[0024] In a possible implementation, the radio frequency channel further includes a power amplifier. The power amplifier is used to amplify the power of the communication signal. The control signal includes gain adjustment information. Adjusting the uplink hardware parameters of the radio frequency channel according to the control signal includes: adjusting the uplink amplification gain of the power amplifier according to the gain adjustment information.

[0025] In a possible implementation, the repeater further includes a power detection circuit. The power detection circuit is coupled to the radio frequency channel. Wherein: the power detection circuit is used to: output a power signal to the communication control module, and the power signal is used to indicate the uplink power value of the radio frequency channel. The communication control module is used to: control the opening or closing of the uplink communication function of the radio frequency channel according to the power signal.

[0026] In a possible implementation, the radio frequency channel is further used to: perform signal processing on the communication signal to obtain a processed communication signal, and the processed communication signal has characteristic information, and the characteristic information is used to indicate the identifier of the repeater.

[0027] In a possible implementation, the communication signal includes a first uplink communication signal, and the first uplink communication signal is a signal sent by a first terminal device to a base station based on the repeater. The first uplink communication signal includes a pilot reference signal. Performing signal processing on the communication signal includes: setting a signal gap interval during the duration of the pilot reference signal, and the signal gap interval is the characteristic information.

[0028] In a possible implementation, the communication signal includes a downlink communication signal, and the downlink communication signal is a signal sent by a base station to a first terminal device based on the repeater. The downlink communication signal includes a channel state reference signal. Performing signal processing on the communication signal includes: setting a signal gap interval during the duration of the channel state reference signal, and the signal gap interval is the characteristic information. Receiving a terminal response signal from the first terminal device and sending the terminal response signal to the base station, and the terminal response signal is used to determine that the first terminal device has received the downlink communication signal.

[0029] In a possible implementation, the radio frequency channel includes a delay circuit. The communication signal includes a first uplink communication signal, and the first uplink communication signal is a signal sent by a first terminal device to a base station based on the repeater. Performing signal processing on the communication signal includes: increasing the signal delay of the first uplink communication signal based on the delay circuit, and the signal delay of the first uplink communication signal is the characteristic information.

[0030] Fifth aspect, an embodiment of the present application further provides a repeater, which includes a radio frequency channel. The radio frequency channel is configured to: receive a communication signal, where the communication signal is an interaction signal between a base station and a first terminal device; perform signal processing on the communication signal to obtain a processed communication signal, and the processed communication signal has characteristic information, where the characteristic information is used to indicate the identifier of the repeater; and transmit the processed communication signal.

[0031] In a possible implementation manner, the communication signal includes a first uplink communication signal, and the first uplink communication signal is a signal sent by the first terminal device to the base station based on the repeater. The first uplink communication signal includes a pilot reference signal. The above-mentioned signal processing on the communication signal includes: setting a signal vacancy interval within the duration of the pilot reference signal, and the signal vacancy interval is the characteristic information.

[0032] In a possible implementation manner, the communication signal includes a first uplink communication signal and a downlink communication signal. The first uplink communication signal is a signal sent by the first terminal device to the base station based on the repeater, and the downlink communication signal is a signal sent by the base station to the first terminal device based on the repeater. The downlink communication signal includes a channel state reference signal. The above-mentioned signal processing on the communication signal includes: setting a signal vacancy interval within the duration of the channel state reference signal, and the signal vacancy interval is the characteristic information; receiving the first uplink communication signal from the first terminal device and sending the first uplink communication signal to the base station, where the first uplink communication signal includes terminal response information, and the terminal response information is used to determine that the first terminal device has received the downlink communication signal.

[0033] In a possible implementation manner, the radio frequency channel includes a time delay circuit. The communication signal includes a first uplink communication signal, and the first uplink communication signal is a signal sent by the first terminal device to the base station based on the repeater. The above-mentioned signal processing on the communication signal includes: increasing the signal time delay of the first uplink communication signal based on the time delay circuit, and the signal time delay of the first uplink communication signal is the characteristic information.

[0034] Sixth aspect, an embodiment of the present application further provides a communication device, which includes a processor and a memory. The processor calls a computer program stored in the memory to implement the communication method described in the first aspect above, or implement the communication method described in the second aspect above, or implement the communication method described in the third aspect above.

[0035] Seventh aspect, an embodiment of the present application further provides a communication system, which includes a base station and a repeater. The base station communicates with a first terminal device based on the repeater. The repeater is the repeater described in the fourth aspect above, or the repeater described in the fifth aspect above.

[0036] In an eighth aspect, an embodiment of the present application further provides a computer-readable storage medium, which includes instructions. When the instructions run on a processor, the processor is caused to execute the communication method described in the first aspect above, or execute the communication method described in the second aspect above, or execute the communication method described in the third aspect above.

[0037] Regarding the technical principles and beneficial effects of the second, third, fourth, fifth, sixth, seventh, and eighth aspects above, reference may be made to the relevant descriptions of the first aspect above, and details are not repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 FIG. is a schematic structural diagram of a communication system provided by an embodiment of the present application;

[0039] Figure 2 FIG. is a schematic structural diagram of a repeater provided by an embodiment of the present application Figure 1 ;

[0040] Figure 3 FIG. is a schematic diagram of the change in the bottom noise before and after a base station accesses a repeater provided by an embodiment of the present application;

[0041] Figure 4 FIG. is a schematic diagram of adding a signal gap interval to a reference signal provided by an embodiment of the present application;

[0042] Figure 5 FIG. is a schematic structural diagram of another repeater provided by an embodiment of the present application Figure 2 ;

[0043] Figure 6 FIG. is a schematic structural diagram of yet another repeater provided by an embodiment of the present application Figure 3 ;

[0044] Figure 7 FIG. is a schematic structural diagram of yet another repeater provided by an embodiment of the present application Figure 4 ;

[0045] Figure 8 FIG. is a schematic structural diagram of yet another repeater provided by an embodiment of the present application Figure 5 ;

[0046] Figure 9 FIG. is a schematic flowchart of a first communication method provided by an embodiment of the present application Figure 1 ;

[0047] Figure 10 FIG. is a schematic flowchart of another first communication method provided by an embodiment of the present application Figure 2 ;

[0048] Figure 11Flow schematic diagram of another first communication method provided by an embodiment of the present application Figure 3 ;

[0049] Figure 12 Flow schematic diagram of a second communication method provided by an embodiment of the present application;

[0050] Figure 13 Schematic diagram of frequency domain range distribution when different frequency domain resources are scheduled for a repeater provided by an embodiment of the present application;

[0051] Figure 14 Flow schematic diagram of a third communication method provided by an embodiment of the present application. Detailed implementation manners

[0052] It should be noted that the terms "first", "second", etc. involved in the embodiments of the present application are only used for the purpose of distinguishing the same type of features, and should not be understood as indicating relative importance, quantity, order, etc.

[0053] The terms "exemplary" or "for example" involved in the embodiments of the present application are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly speaking, using the terms "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0054] The terms "coupled" and "connected" involved in the embodiments of the present application should be understood in a broad sense. For example, it may refer to a direct physical connection, or an indirect connection realized through electronic devices, such as a connection realized through resistors, inductors, capacitors or other electronic devices.

[0055] The embodiments of the present application provide a communication system 1000, as Figure 1As shown in the figure, the communication system 1000 includes a base station 100 and a repeater 200. However, in some application scenarios, within the cell coverage area of the base station 100, there are obstacles Z and the like between the signal transmission paths of some user equipment (UE) UEs. These obstacles Z will increase the path loss of the communication signal transmission between the terminal device UE and the base station 100, making the signal amplitude of the communication signal lower than the detectable level value. For the area within the cell coverage area of the base station 100 where the signal amplitude of the transmitted communication signal is lower than the detectable level value, we call this the coverage blind area of the base station 100. When the terminal device UE is in the coverage blind area, it will affect the wireless communication between the terminal device UE and the base station 100. To solve the problem that the base station cannot communicate wirelessly with the terminal device in the coverage blind area, a repeater 200 can be set in the communication system. The repeater 200 includes a radio frequency channel 210. For the first terminal device UE1 in the coverage blind area of the base station 100, based on the radio frequency channel 210, the communication signal between the base station 100 and the first terminal device UE1 in the coverage blind area of the base station 100 is relayed, so that the base station 100 can communicate with the first terminal device UE1 in the coverage blind area. At the same time, the base station 100 can also communicate with the second terminal device U2 within the coverage area.

[0056] In some possible implementation manners, the communication signals exchanged between the base station 100 and the first terminal device UE2 include a first uplink communication signal and a downlink communication signal. As Figure 2 shown, the repeater 200 includes a radio frequency channel 210. The radio frequency channel 210 includes a first duplexer D1, a second duplexer D2, an uplink radio frequency channel S, and a downlink radio frequency channel X. The first duplexer D1 is coupled to the first antenna A1, and the second duplexer D2 is coupled to the second antenna A2. Among them:

[0057] The first antenna A1 receives the downlink communication signal from the base station 100 and transmits it to the downlink radio frequency channel X through the first duplexer D1. After the downlink radio frequency channel X performs filtering processing and power amplification processing on the downlink communication signal, the downlink communication signal is sent to the first terminal device UE1 through the second duplexer D2 and the second antenna A2 to complete the communication from the base station 100 to the first terminal device UE1.

[0058] The second antenna A2 receives the first uplink communication signal from the first terminal device UE1 and transmits it to the uplink radio frequency channel S through the second duplexer D2. After the uplink radio frequency channel S performs filtering processing and power amplification processing on the first uplink communication signal, the first uplink communication signal is sent to the base station 100 through the first duplexer D1 and the first antenna A1 to complete the communication from the first terminal device UE1 to the base station 100.

[0059] In the implementation of the above solution, by controlling the time slots of the first duplexer D1 and the second duplexer D2, time-division multiplexing can be achieved based on the first antenna A1 and the second antenna A2, thereby completing the time-slot communication of the first uplink communication signal and the downlink communication signal. In addition, when the base station 100 communicates with the first terminal device UE1 based on the repeater 200, it will also interact with the second terminal device UE2 within the coverage area, such as receiving the second uplink communication signal sent by the second terminal device UE2.

[0060] However, in the above application scenario, there are the following two problems:

[0061] Problem 1: The radio frequency channel 210 of the repeater 200 is a hardware circuit for relaying communication signals and does not involve baseband data processing, decoding, and other operations. Therefore, for the base station 100, it is difficult to distinguish between the communication signals of the second terminal device UE2 directly received within the coverage area and the first terminal device UE1 received through the relay of the repeater 200 in the coverage blind area. The base station 100 cannot provide differentiated services to terminal devices UE with different interaction methods.

[0062] Problem 2: Although the repeater 200 can meet the basic communication needs of the first terminal user UE1 in the coverage blind area, it will deteriorate the uplink coverage range of the base station 100. The reasons are as follows: First, the space where the repeater 200 is located has electromagnetic wave signals with different uses in different frequency bands. As a relay station for radio frequency signals, in addition to receiving the communication signals of the first terminal device UE1 and sending them to the base station 100, the repeater 200 will also forward other external interference signals in the space to the base station. At the same time, the repeater 200 itself also has thermal noise, etc. These external interference noises will increase the bottom noise of the base station 100 and deteriorate the uplink coverage range of the base station 100. Second, as a relay station, during the process of relaying radio frequency signals, the repeater 200 will also amplify the relayed signals with power gain. The power gain amplification will further amplify the interference noise transmitted to the base station 100, thereby further deteriorating the uplink coverage range of the base station 100. This will cause the coverage range of the cell of the base station 100 to shrink after the base station 100 accesses the repeater 200, and the second terminal device UE2 at the edge of the original coverage range will fall into a new coverage blind area and cannot communicate with the base station 100 normally. Therefore, Figure 1 The application solution of the shown repeater 200 essentially sacrifices the edge area of the original coverage range of the base station 100 to meet the communication under the coverage blind area of the obstacle. This communication method does not really improve the coverage range of the base station 100. As Figure 3As shown in the figure, sampling and analysis are carried out on the base station 100 and the affiliated repeater 200 in a certain city. It is found that after the repeater 200 is turned on, the uplink interference noise of the base station 100 increases by 4 dB. At the same time, after sampling and statistics on multiple cities, it is found that in the F1800 frequency band, there are 832 interfering cells in the sampled cities, accounting for 5.37% of the total sampling ratio. Among the existing interference types, the interference caused by the repeater 200 accounts for more than 40%. And the interference intensity is distributed in [-110, -100], and the proportion of the interference intensity exceeds 90%.

[0063] To solve the problem that the base station 100 described in the above problem one cannot identify the first terminal user UE1 and the second terminal user UE2, in some possible implementation manners, the repeater 200 may be a network controlled repeater (NCR). During the process of the repeater 200 interacting with communication signals, signal processing can be performed on the communication signals based on the radio frequency channel 210 to assist the base station 100 in distinguishing different terminal device UE users. At this time, the radio frequency channel 210 is used to: receive communication signals; perform signal processing on the communication signals to obtain the processed communication signals, and the processed communication signals have characteristic information, and the characteristic information is used to indicate the identifier of the repeater 200; send the processed communication signals.

[0064] In the embodiments of the present application, the repeater 200 generally does not include devices related to baseband processing, and it only serves as a device for relaying and amplifying radio frequency signals. Therefore, it is difficult for the repeater 200 to analyze communication signals and set data identifiers in the data domain. However, the radio frequency channel 210 is used as the hardware for signal processing (such as signal conduction, signal amplification, and signal filtering, etc.). In this solution, during the process of signal processing on the communication signals based on the radio frequency channel 210, some special processing can be performed on the communication signals without affecting normal wireless communication to assist the base station 100 in identifying the first uplink communication signal sent by the first terminal device UE1 and the second uplink communication signal sent by the second terminal device UE2, etc. At the same time, the base station 100 can also perform differentiated customized services based on the identification.

[0065] In some possible implementation manners, the radio frequency channel 210 of the repeater 200 can perform signal processing on the first uplink communication signal based on the uplink radio frequency channel S, so that the processed first uplink communication signal has characteristic information. The following takes two signal processing methods in Method 1 and Method 2 as examples:

[0066] Method 1: The first uplink communication signal includes a sounding reference signal (SRS). The signal processing of the communication signal includes: setting a signal gap interval within the duration of the sounding reference signal, and the signal gap interval is the characteristic information. In the embodiments of the present application, as a pilot signal stipulated in a communication standard, SRS is an effective signal within a certain duration transmitted on the uplink. The bandwidth of SRS is larger than the bandwidth allocated to a single UE, aiming to provide a reference for the uplink channel estimation of the full bandwidth. SRS is sent in the last symbol of each subframe of the uplink communication signal, and SRS can be sent by multiple terminal devices UE through system scheduling. Generally, as Figure 4 shown, in the communication signal sent by each terminal device UE, SRS is a continuous effective signal. By designing the uplink radio frequency channel S of the radio frequency channel 210, during the signal processing of the first uplink communication signal by the uplink radio frequency channel S, through the on-off control of the signal transmission function, a signal gap interval can be generated in the SRS on the first uplink communication signal. By using the signal gap interval as the characteristic information, the first uplink communication signal transmitted by the repeater 200 and the second uplink communication signal transmitted by the second terminal device UE2 can be distinguished.

[0067] Method 2: A time delay can be added to the first uplink communication signal to distinguish the first uplink communication signal and the second uplink communication signal. As Figure 5 shown, the radio frequency channel 210 includes a first time delay circuit 214. The signal processing of the communication signal includes: increasing the signal time delay of the first uplink communication signal based on the first time delay circuit 214, and the signal time delay of the first uplink communication signal is the characteristic information. In the embodiments of the present application, by adding a signal time delay to the first time delay circuit 214 and using the signal time delay as the characteristic information, the first uplink communication signal transmitted by the repeater 200 and the second uplink communication signal transmitted by the second terminal device UE2 can be distinguished. In some examples, in the above Method 2, a second time delay circuit 215 can also be correspondingly set in the downlink radio frequency channel to perform time delay processing on the downlink communication signal.

[0068] In some possible implementation manners, the radio frequency channel 210 of the repeater 200 can perform signal processing on the downlink communication signal based on the downlink radio frequency channel X, so that the processed downlink communication signal has characteristic information. The following takes the signal processing method of Method 3 as an example:

[0069] Method 3: The downlink communication signal includes a channel state information reference signal (CSI RS). As Figure 4As shown above, the signal processing of the communication signal includes: setting a signal vacancy interval within the duration of the channel state reference signal, and the signal vacancy interval is the characteristic information. Receiving a first uplink communication signal from the first terminal device UE1 and sending the first uplink communication signal to the base station 100. The first uplink communication signal includes terminal response information, which is used to determine that the first terminal device UE1 has received the downlink communication signal. In the embodiments of the present application, the channel state reference signal is a very important reference signal in the new radio (NR) system. Since the channel conditions of wireless communication may change continuously, the terminal device UE needs to feedback the downlink channel conditions it sees so that the channel quality can be taken into account during downlink scheduling. The base station 100 can transmit the channel state reference signal in a preset frequency domain, and the terminal device UE makes feedback based on the received channel state reference signal. In this process, the downlink radio frequency channel X can also perform signal processing on the downlink communication signal so that the first terminal device UE1 receives the downlink communication signal with characteristic information. Then, the first terminal device UE1 can also respond to the received downlink communication signal with characteristic information, carry the feedback terminal response information in the sent first uplink communication signal, and inform the base station through the terminal response information that the first terminal device UE1 has received the downlink communication signal. The base station can distinguish the first uplink communication signal and the second communication signal through the first uplink communication signal including the terminal response information.

[0070] In some possible implementation manners, isolators, automatic gain control circuits, low-noise amplifiers, etc. can also be provided in the uplink radio frequency channel S and the downlink radio frequency channel X of the radio frequency channel 210. In the embodiments of the present application, the isolator can achieve the transceiver isolation between the uplink radio frequency channel S and the downlink radio frequency channel X to ensure the normal operation of duplex communication. The automatic gain control circuit can assist in realizing the gain feedback adjustment of the power amplification in the uplink radio frequency channel S and the downlink radio frequency channel X. The low-noise amplifier can perform signal amplification processing on the communication signal after filtering in the uplink radio frequency channel S and the downlink radio frequency channel X, etc.

[0071] In some possible implementation manners, on the basis of the above-mentioned Method 1, Method 2, and Method 3, the characteristic information can also be designed or adjusted to match different repeaters 200. As Figure 6 shown, the repeater 200 further includes a communication control module 220. The communication control module 220 can adjust the characteristic information. In some examples, in the above-mentioned Method 1 and Method 3, the communication control module 220 can control the moment and interval length of the signal vacancy interval to realize the identification and distinction of different repeaters 200. In the above-mentioned Method 2, the communication control module 220 can control the delay length of the first delay circuit 214 to realize the identification and distinction of different repeaters 200.

[0072] Based on the implementation solutions of the above Method 1, Method 2, and Method 3, at the base station 100, it is possible to identify the first uplink communication signal and the second communication signal, thereby solving the above Problem 1. In actual applications, the base station 100 may receive the first uplink communication signals transmitted by multiple repeaters 200. These first uplink communication signals are differentiated based on the above different technologies.

[0073] To solve the problem that the first uplink communication signal transmitted by the repeater 200 described in the above Problem 2 deteriorates the uplink coverage range of the base station 100, in some possible implementation manners, the uplink hardware parameters of the radio frequency channel 210 of the repeater 200 may be adjusted and optimized. In some possible implementation manners, as Figure 7 shown, the repeater 200 includes a radio frequency channel 210 and a communication control module 220. Among them: The radio frequency channel 210 is used for: receiving communication signals; transmitting communication signals. The communication control module 220 is used for: receiving a control signal, and the control signal is used to instruct to adjust the uplink hardware parameters of the radio frequency channel 210. Adjust the uplink hardware parameters of the radio frequency channel 210 according to the control signal. In the embodiments of the present application, by adjusting the uplink hardware parameters of the repeater 200, it is possible to achieve reducing the deterioration of the uplink coverage range of the base station 100 by the first uplink communication signal as much as possible on the basis of ensuring normal communication between the base station 100 and the first terminal device UE1.

[0074] In some possible implementation manners, as Figure 7 shown, the uplink coverage range of the base station 100 may be optimized by adjusting the uplink hardware parameters of the uplink radio frequency channel S of the radio frequency channel 210. In some examples, the uplink hardware parameters may include frequency domain, time domain, and uplink amplification gain, etc.

[0075] In some possible implementation manners, the interference is reduced by adjusting the frequency domain of the radio frequency channel 210. As Figure 7As shown, the radio frequency channel 210 includes an adjustable band-pass filter 211. The adjustable band-pass filter 211 is used to filter communication signals. The control signal includes frequency domain adjustment information; the uplink hardware parameters of the radio frequency channel 210 are adjusted according to the control signal, including: adjusting the operating frequency domain of the adjustable band-pass filter 211 according to the frequency domain adjustment information. In the embodiment of the present application, the repeater 200 receives electromagnetic wave signals of different frequency bands based on the second antenna A2, and performs filtering processing based on the band-pass filter 211, so that signals within a certain frequency domain range can pass through and are transmitted to the base station 100 on the uplink based on the first antenna A1. Therefore, the size of the operating frequency domain of the uplink radio frequency channel S also determines the size of the frequency domain of the interference noise transmitted to the base station 100. Theoretically, under the condition of ensuring normal communication, the smaller the operating frequency domain of the uplink radio frequency channel S, the smaller the uplink interference to the base station 100.

[0076] In some examples, the adjustable band-pass filter 211 can implement band-pass adjustment based on the digital domain or based on circuit control.

[0077] In some possible implementation manners, interference is reduced by adjusting the time domain of the radio frequency channel 210. As Figure 7 shown, the control signal includes operating time slot information. The uplink hardware parameters of the radio frequency channel 210 are adjusted according to the control signal, including: controlling the start time of the uplink communication function of the radio frequency channel 210 according to the operating time slot information. In the embodiment of the present application, by adjusting the operating time slot of the uplink radio frequency channel S and reducing the start time of the uplink radio frequency channel S, the uplink communication function can be turned off when the uplink radio frequency channel S does not transmit an effective first uplink communication signal, thereby avoiding useless interference noise from being transmitted to the base station 100 through the uplink. Therefore, interference can also be reduced by controlling the time domain of the uplink radio frequency channel 210. Exemplarily, the start time of the uplink communication function can be controlled by controlling whether a certain device in the uplink radio frequency channel S works. A switch can also be correspondingly set within the uplink radio frequency channel S or on the input path or output path of the uplink radio frequency channel S to control the start time of the uplink communication function.

[0078] In some possible implementation manners, interference is reduced by adjusting the uplink amplification gain of the radio frequency channel 210. As Figure 7As shown, the radio frequency channel 210 further includes a power amplifier 212. The power amplifier 212 is used to amplify the power of the communication signal. The control signal includes gain adjustment information. Adjusting the uplink hardware parameters of the radio frequency channel 210 according to the control signal includes: adjusting the uplink amplification gain of the power amplifier 212 according to the gain adjustment information. In the embodiments of the present application, in order to ensure the signal quality of the first uplink communication signal. The uplink radio frequency channel S will amplify the power of the first uplink communication signal through the power amplifier 212. In this process, the interference noise received by the uplink radio frequency channel S will also be amplified in power. The amplified interference noise will bring a greater noise interference problem to the base station 100. Therefore, the uplink amplification gain of the power amplifier 212 can be reduced as much as possible while ensuring the normal communication of the first uplink communication signal, so as to reduce the interference noise.

[0079] In some possible implementation manners, as Figure 8 shown, the repeater 200 further includes a power detection circuit 230. The power detection circuit 230 is coupled to the uplink radio frequency channel S of the radio frequency channel 210. Wherein: the power detection circuit 230 is used to: output a power signal to the communication control module 220, and the power signal is used to indicate the uplink power value of the radio frequency channel 210. The communication control module 220 is used to: control the opening or closing of the uplink communication function of the radio frequency channel 210 according to the power signal. In the embodiments of the present application, a corresponding power detection circuit 230 can also be set in the repeater 200 to detect the uplink power value of the uplink radio frequency channel S through the power detection circuit 230. The communication control module 220 can determine whether there is a first uplink communication signal that needs to be relayed and transmitted according to the uplink power value. When there is no first uplink communication signal that needs to be relayed and transmitted, the uplink radio frequency channel S can be turned off to turn off the uplink communication function. At this time, the noise interference to the base station 100 when there is no first uplink communication signal that needs to be transmitted can be avoided. Exemplarily, the embodiments of the present application do not limit the coupling position of the power detection circuit 230 on the uplink radio frequency channel S, and it can be coupled at any position on the transmission path of the uplink radio frequency channel S where the uplink power value can be detected.

[0080] In some possible implementation manners, as Figure 7 and Figure 8 shown, the communication system 1000 further includes a network management 300. Control signals can be sent to the repeater 200 based on the network management 300 and / or the base station 100 to adjust the uplink hardware parameters of the radio frequency channel 210 of the repeater 200.

[0081] To solve the problem that the base station 100 described in the above problem one cannot identify the first terminal user UE1 and the second terminal user UE2, the communication system 1000 can execute as Figure 9The first communication method including the operations of steps S110 - S140 shown:

[0082] S110, the radio frequency channel 210 of the repeater 200 receives a communication signal.

[0083] In some possible implementation manners, the communication signal includes a first uplink communication signal and a downlink communication signal. As Figure 5 and Figure 6 shown, the radio frequency channel 210 can receive the first uplink communication signal based on the uplink radio frequency channel S, and can also receive the first downlink communication signal based on the downlink radio frequency channel X.

[0084] S120, the radio frequency channel 210 of the repeater 200 performs signal processing on the communication signal to obtain a processed communication signal.

[0085] In some possible implementation manners, the processed communication signal has characteristic information, and the characteristic information is used to indicate the identifier of the repeater 200. In the embodiments of the present application, the first uplink communication signal and the downlink communication signal are communication signals for the base station 100 and the first terminal user UE1 to interact based on the repeater 200. Therefore, signal processing can be performed on the first uplink communication signal and / or the downlink communication signal so that it has characteristic information. In subsequent processing, between the base station 100 and the first terminal device UE1, it can be recognized based on the characteristic information that the received information comes from the relay of the repeater 200. And corresponding operations for discrimination recognition can be performed.

[0086] In some examples, signal processing can be performed on the first uplink communication signal to obtain the first uplink communication signal after signal processing.

[0087] Exemplarily, as Figure 4 shown, a signal vacancy interval can be set in the pilot reference signal of the first uplink communication signal based on the above-mentioned method 1, and the signal vacancy interval is used as the characteristic information. In some examples, one or more of the following parameters of the signal vacancy interval are used to indicate the identifier of the repeater: the existence moment within the duration of the pilot reference signal, the vacancy duration of the signal vacancy interval, and the interval duration between multiple signal vacancy intervals. In the embodiments of the present application, as Figure 4 shown, different repeaters 200 can set signal vacancy intervals at different moments within the duration of the transmitted pilot communication signal. The different repeaters 200 are distinguished and identified based on the moment where the signal vacancy interval on the first uplink communication signal is located. It is also possible to set the vacancy duration of the signal vacancy interval, and different repeaters 200 are distinguished and identified by different vacancy durations. It is also possible to set the duration of the effective signal between two adjacent signal vacancy intervals on the pilot communication signal to achieve the distinction and identification of different repeaters 200.

[0088] Exemplarily, as Figure 5 shown, the signal delay can be increased on the first uplink communication signal based on the above-mentioned second method, and the signal delay is used as the characteristic information. Exemplarily, when increasing the signal delay, the sum of the increased delay and the delay required for the operation of increasing the delay needs to be less than or equal to the signal flight delay of the cell radius of the base station 100. In the embodiments of the present application, in some application scenarios, there are certain technical standards that limit the communication behavior of the base station 100, and the base station 100 only receives the uplink communication signals within the cell radius. At this time, the increased delay of the repeater 200 can be limited.

[0089] In some examples, signal processing can be performed on the downlink communication signal to obtain the first uplink communication signal after signal processing.

[0090] Exemplarily, as Figure 4 shown, the signal vacancy interval can be set in the channel state reference signal of the downlink communication signal based on the above-mentioned third method, and the signal vacancy interval is used as the characteristic information. In the embodiments of the present application, in subsequent processing, the first terminal device UE1 can identify whether the received communication signal is directly sent by the base station 100 or relayed by the repeater 200 based on the characteristic information in the downlink communication signal, and feedback to send the first uplink communication signal to the base station 100 in response to the characteristic information in the downlink communication signal, and set the corresponding terminal response information in the first uplink communication signal. The terminal response information is used to determine that the first terminal device UE1 has received the downlink communication signal with the characteristic information. Subsequently, the base station can implement discrimination and recognition based on the first uplink communication signal including the terminal response information.

[0091] In some examples, as Figure 6 shown, the communication control module 220 in the radio frequency channel 210 can receive the characteristic adjustment instruction and adjust the characteristic value of the characteristic information of its corresponding repeater 200 based on the characteristic adjustment instruction.

[0092] S130. The radio frequency channel 210 of the repeater 200 transmits the processed communication signal.

[0093] In some examples, as Figure 10 shown, taking the example of carrying the characteristic information on the first uplink communication signal, in step S110, the repeater 200 receives the first uplink communication signal. In step S120, the repeater 200 performs signal processing on the first uplink communication signal to obtain the first uplink communication signal with the characteristic information. In step S130, the repeater 200 transmits the processed first uplink communication signal with the characteristic information to the base station 100.

[0094] In some examples, as Figure 11As shown, taking the example of carrying characteristic information on the downlink communication signal, in step S110, the repeater 200 receives the downlink communication signal. In step S120, the repeater 200 processes the downlink communication signal to obtain a downlink communication signal with characteristic information. At this time, step S130 may include the operations of the following steps S131 - S133: In step S131, the repeater 200 sends the processed downlink communication signal with characteristic information to the first terminal device UE1. Then, in step S132, the repeater 200 receives the first uplink communication signal including terminal response information from the first terminal device UE1. In step S133, the repeater 200 relays and sends the first uplink communication signal including the terminal response information to the base station 100.

[0095] S140. The base station 100 performs identification processing.

[0096] In some possible implementation manners, the base station 100 receives the first uplink communication signal and the second uplink communication signal. Among them, the first uplink communication signal is the signal transmitted by the first terminal device UE1 to the base station 100 through the repeater 200. The second uplink communication signal is the signal transmitted by the second terminal device UE2 to the base station 100. In some examples, the first uplink communication signal received by the base station 100 may be from different repeaters 200. In some examples, the first uplink communication signals sent by different repeaters 200 may include characteristic information or terminal response information. In some examples, the characteristic information in the first uplink communication signal may be signal delay or signal vacancy interval, etc.

[0097] In some possible implementation manners, the base station 100 can determine whether the uplink communication signal is the first uplink communication signal or the second uplink communication signal according to whether there is characteristic information or terminal response information in the received uplink communication signal.

[0098] In some possible implementation manners, the base station 100 can distinguish which specific repeater 200 the first uplink communication signal comes from according to the different characteristic information in the received first uplink communication signal.

[0099] In some possible implementation manners, the base station 100 can perform frequency-domain resource or time-domain resource allocation and scheduling for different repeaters 200 and the second terminal device UE2 based on the result of discrimination and identification.

[0100] In some possible implementation manners, the base station 100 can calculate the uplink average power of different repeaters 100 based on the result of discrimination and identification, etc.

[0101] To solve the problem that the first uplink communication signal transmitted by the repeater 200 deteriorates the uplink coverage of the base station 100 as described in the above problem two, the communication system 1000 can execute a second communication method including operations from step S210 to step S230 as shown in Figure 12 :

[0102] S210. Receive a communication signal based on the radio frequency channel 210.

[0103] In some possible implementation manners, as shown in Figure 7 and Figure 8 , in the repeater 200, the uplink radio frequency channel S of the radio frequency channel 210 is based on the second antenna A to start working. After starting to work, if the first terminal device UE1 transmits a first uplink communication signal, the uplink radio frequency channel S can receive the first uplink communication signal from the first terminal device UE1. However, when the uplink radio frequency channel S starts to work, the following problems may exist:

[0104] In some examples, during the process of receiving the first uplink communication signal based on the second antenna A, the uplink radio frequency channel S will also receive other electromagnetic wave signals in the space. Generally, the second antenna A can receive electromagnetic wave signals in a relatively large frequency domain range. In the uplink radio frequency channel S, a band-pass filter is provided to filter and pass the signals within the uplink operating frequency domain of the uplink radio frequency channel S. Because the traditional base station 100 is not designed for frequency domain scheduling between the second terminal device UE2 and the repeater 200. Therefore, the ranges of the uplink operating frequency domain of the repeater 200 and the uplink operating frequency domain of the second terminal device UE2 are both relatively large. For the base station 100, the electromagnetic wave signals other than the first uplink communication signal received are interference noises. Therefore, the larger the frequency band where the electromagnetic wave signal is located, the greater the interference to the base station 100. Therefore, the size of the uplink operating frequency domain of the uplink radio frequency channel S will affect the uplink coverage of the base station 100.

[0105] In some examples, as shown in Figure 7 and Figure 8 , a power amplifier 212 is also provided in the uplink radio frequency channel S of the repeater 200. The repeater 200 can amplify the power of the first uplink communication signal based on the power amplifier 212 to ensure the communication quality between the base station 100 and the first terminal device UE1. However, while the power amplifier 212 amplifies the power of the first uplink communication signal, it will also amplify other interference noises received and filtered by the uplink radio frequency channel S. This will increase the bottom noise of the base station 100, thereby further deteriorating the uplink coverage of the base station 100. Therefore, the size of the uplink amplification gain of the uplink radio frequency channel S will also affect the uplink coverage of the base station 100.

[0106] In some examples, as shown inFigure 7 and Figure 8 As shown in Figure 8 , when the first terminal device UE1 is transmitting the first uplink communication signal during the time slot when the uplink radio frequency channel S of the repeater 200 is turned on and working, the uplink radio frequency channel S only transmits interference noise to the base station 100 during the working time slot. In this case, the repeater 200 does not act as a relay station, but instead becomes a noise source that deteriorates the communication quality. Therefore, the design of the working time slot of the repeater 200 also affects the uplink coverage range of the base station 100.

[0107] S220. The repeater 200 receives a control signal and adjusts the uplink hardware parameters of the radio frequency channel 210 according to the control signal.

[0108] In the embodiment of the present application, by adjusting the uplink hardware parameters of the radio frequency channel 210, the uplink noise signal in the communication signal can be reduced.

[0109] In some possible implementation manners, as Figure 7 and Figure 8 shown, the communication control module 220 of the repeater 200 receives a control signal. The control signal is used to indicate adjusting the uplink hardware parameters of the radio frequency channel 210, so as to implement signal processing on the first uplink communication signal based on different uplink hardware parameters. Exemplarily, the control signal may include at least one of the following information: frequency domain adjustment information, working time slot information, and gain adjustment information. These information can correspondingly adjust the uplink working frequency domain, the activation of the uplink communication function, and the uplink amplification gain in the uplink hardware parameters of the radio frequency channel 210.

[0110] In some examples, the control signal includes frequency domain adjustment information. Adjusting the uplink hardware parameters of the radio frequency channel 210 according to the control signal includes: adjusting the working frequency domain of the tunable band-pass filter 211 according to the frequency domain adjustment information. In the embodiment of the present application, the communication control module 220 can adjust the uplink working frequency domain of the uplink radio frequency channel S based on the control signal. The specific adjustment method may be: setting a tunable band-pass filter 211 in the uplink radio frequency channel S and adjusting the filter pass frequency domain of the tunable band-pass filter 211, etc.

[0111] In some examples, the control signal includes working time slot information. Adjust the uplink hardware parameters of the radio frequency channel 210 according to the control signal, including: according to the working time slot information, control the starting time of the uplink communication function of the radio frequency channel 210. In the embodiments of the present application, the working time of the uplink radio frequency channel S can be controlled to reduce the working duration of the uplink radio frequency channel S when there is no first uplink communication signal, thereby reducing the interference to the base station 100. Exemplarily, the control of the uplink radio frequency channel S can be achieved by controlling the working time of the power amplifier 212. The power amplifier 212 is the device with the largest power consumption in the entire uplink radio frequency channel S. By controlling the turn-off and turn-on of the power amplifier 212, the power consumption can be reduced when the uplink radio frequency channel S is not working.

[0112] In some examples, the control signal includes gain adjustment information. Adjust the uplink hardware parameters of the radio frequency channel 210 according to the control signal, including: according to the gain adjustment information, adjust the uplink amplification gain of the power amplifier 212. In the embodiments of the present application, by adjusting the uplink amplification gain of the power amplifier 212 in the uplink radio frequency channel S, on the basis of ensuring normal communication between the base station 100 and the first terminal device UE1, the uplink amplification gain of the power amplifier 212 is reduced as much as possible, so that the power of the interference noise can be reduced during the working time of the uplink radio frequency channel S.

[0113] In some possible implementation manners, in step S220, in addition to adjusting the uplink hardware parameters of the radio frequency channel 210 based on the control signal, the repeater 200 can also control the opening and closing of the uplink communication function of the uplink radio frequency channel S according to the uplink power value detected by the repeater 200. As Figure 8 shown, a power signal is obtained based on the power detection circuit 230, and the power signal is used to indicate the uplink power value of the radio frequency channel 210; control the opening or closing of the uplink communication function of the radio frequency channel 210 according to the power signal. Exemplarily, when the uplink power value reaches a certain threshold, it can be determined that the first uplink communication signal is received, and then the communication control module 220 turns on the uplink radio frequency channel S. When the uplink power value is lower than a certain threshold within a certain time period or the power cannot be detected, the communication control module 220 turns off the uplink radio frequency channel S. Exemplarily, the power detection circuit 230 can detect different channel powers to obtain the uplink power value. For example, the channel powers of the physical uplink control channel (PUCCH) and / or the physical random access channel (PRACH) can be detected, and the detection results are used as the uplink power value.

[0114] S230. Transmit a communication signal based on the radio frequency channel 210.

[0115] In an embodiment of the present application, a first uplink communication signal is received in step S210, and the received first uplink communication signal is processed in step S220 to obtain a processed first uplink communication signal. In step S230, the processed first uplink communication signal is transmitted to the base station 100 based on the uplink radio frequency channel S of the radio frequency channel 210. Compared with the first uplink communication signal that has not been processed in step S220, after being processed in step S220, when the base station 100 receives the processed first uplink communication signal, less interference noise is received, thereby greatly avoiding the deterioration of the uplink coverage range of the base station 100 after the repeater 200 accesses the base station 100.

[0116] In some possible implementation manners, the uplink hardware parameters in step S210 can be calculated based on different algorithm strategies. At the same time, relevant uplink hardware parameter calculations can also be performed based on different controllers to provide the control signal to the communication control module 220 of the repeater 200. In actual applications, it can be designed adaptively according to the application scenario. The following provides several specific examples for illustration:

[0117] Example 1: The uplink hardware parameters of the repeater 200 can be adjusted and calculated based on the base station 100 or the network management device 300:

[0118] In some examples, such as Figure 6 、 Figure 7 and Figure 8 shown, the repeater 200 can realize communication relaying between the first terminal device UE1 and the base station 100 based on the radio frequency channel 210. In addition, the repeater 200 can also communicate with the base station 100 as a network node based on the communication control module 220. Therefore, although the base station 100 cannot distinguish between the first uplink communication signal forwarded by the repeater 200 and the directly received second uplink communication signal. However, the base station 100 can communicate with each repeater 200 to send a control signal to the repeater 200. Similarly, the network management device 300 can communicate with the repeater 200 based on the base station 100. Alternatively, the network management device 300 can also directly communicate with the communication control module 220 of the repeater 200.

[0119] Exemplarily, the network management device 300 manages the spectrum resource scheduling of the base station 100, etc., and it can schedule and allocate the original frequency domain resources. Such as Figure 13As shown in the figure, in traditional frequency domain resource scheduling, no specific working frequency domain is set for the repeater 200, and the uplink working frequency domain range of the repeater 200 is relatively large. After spectrum resource scheduling, a certain frequency domain range is allocated to the second terminal device UE2, and another part of the frequency domain range is allocated to all repeaters 200 within the coverage area. At this time, the frequency domain range of all repeaters 200 is smaller than that before the scheduling adjustment. The network management unit 300 can send the frequency domain resource allocation information after the scheduling allocation to the base station 100. At the same time, the base station 100 or the network management unit 300 can generate a control signal based on the frequency domain allocation after the scheduling, and the control signal includes frequency domain adjustment information. The base station 100 sends the control signal to the communication control module 220 of the repeater 200 so that the repeater 200 performs the operations of the above second communication method.

[0120] Example 2: The uplink hardware parameters of the repeater 200 can be adjusted and calculated based on the collaborative processing between the base station 100 and the network management unit 300. At this time, as Figure 14 shown, the following operations including step S310-step S330 can be performed between the base station 100 and the network management unit 300:

[0121] S310: The base station 100 sends parameter calculation information to the network management unit 300.

[0122] In some possible implementation manners, the base station 100 can send parameter calculation information related to frequency domain, time domain, or uplink amplification gain calculation to the network management unit 300.

[0123] Exemplarily, for the adjustment control related to the frequency domain, the parameter calculation information sent by the base station 100 to the network management unit 300 may include initial frequency domain resource configuration, common channel configuration, and workload information. Among them, the initial frequency domain resource configuration may include frequency domain resource scheduling configuration, such as the configuration information of a part of the bandwidth part (BWP). The common channel configuration may include the channel configuration information of long term evolution (LTE). The workload information may include the workload situation of the base station 100 within a unit time.

[0124] Exemplarily, for the adjustment control related to the time domain, the parameter calculation information sent by the base station 100 to the network management unit 300 may include workload information.

[0125] Exemplarily, for the power related configuration, the parameter calculation information sent by the base station 100 to the network management unit 300 may include the uplink path loss index information of the repeater 200, the reference signal receiving power (RSRP) value, and the interference noise value, etc.

[0126] S320. The network management unit 300 determines the uplink hardware parameters of the repeater 200 based on the parameter calculation information.

[0127] In some examples, when the uplink hardware parameters include the uplink operating frequency domain of the repeater 200, the parameter calculation information sent by the base station 100 includes initial frequency domain resource configuration, common channel configuration, and workload information, which can be used to perform frequency domain configuration on channels such as the PUCCH, PRACH, and physical uplink shared channel (PUSCH) of the base station 100, so as to determine the adjusted uplink operating frequency domain of the repeater 200. Exemplarily, the network management unit 300 can obtain the frequency domain resource positions of the uplink PUCCH and PRACH of the cell based on the initial frequency domain resource configuration and the common channel configuration, and determine the uplink frequency selection amplification frequency domain position of the repeater 200 to ensure that the repeater 200 and the base station 100 can sincerely receive the initial BWP or common channel information. Exemplarily, the network management unit 300 can determine the frequency domain position of the PUSCH based on the workload information of the base station 100. By integrating the above operations, the new uplink operating frequency domain that the repeater 200 can be adjusted to can be determined.

[0128] In some examples, when the uplink hardware parameters include the uplink operating time domain of the repeater 200, the network management unit 300 can determine the idle time and working time distribution of the repeater 200 according to the workload information of the base station 100. Thus, the new uplink operating time domain that the repeater 200 can be adjusted to can be determined.

[0129] In some examples, when the uplink hardware parameters include the uplink amplification gain of the repeater 200, exemparily, the network management unit 300 can determine the initial uplink gain of the repeater 200 according to the uplink path loss index information between the repeater 200 and the base station 100. Exemplarily, the network management unit 300 can determine the new uplink amplification gain of the repeater 200 in the working state according to the RSRP value of the repeater 200 statistically measured by the base station 100. For example, the full transmission power RSRP value of the repeater 200 when transmitting at full power is calculated according to the uplink RSRP value and power margin of the repeater 200. The uplink target RSRP value of the repeater 200 is determined according to the interference noise at the cell level measured by the base station 100 and the minimum guaranteed signal-to-noise ratio (SNR) when the repeater 200 is operating normally. The uplink amplification gain value that the repeater 200 can be adjusted is determined according to the difference between the full transmission power RSRP value and the uplink target RSRP value.

[0130] S330. Send a control signal to the repeater 200.

[0131] In some possible embodiments, after calculating the uplink hardware parameters, the network management device 300 generates a control signal and sends it to the communication control module 220 of the repeater 200.

[0132] In some possible embodiments, after calculating the uplink hardware parameters, the network management device 300 sends a control signal to the repeater 200 through the base station 100.

[0133] In some possible embodiments, when the network management device 300 sends a control signal to adjust the uplink operating frequency domain and / or uplink operating time domain of the repeater 200, it may also send a corresponding parameter indication signal to the base station 100, and feedback the adjusted uplink operating frequency domain and / or uplink operating time domain of the repeater 200 to the base station 100 through the parameter indication signal. The base station 100 may adjust the frequency domain resource scheduling and / or time domain resource scheduling related to the repeater 200 based on the parameter indication signal.

[0134] The embodiment of the present application also provides a communication device, which includes a processor and a memory. The processor calls the computer program stored in the memory to implement the first communication method described in the above embodiment, or execute the second communication method described in the above embodiment, or execute the third communication method described in the above embodiment.

[0135] The embodiment of the present application also provides a computer-readable storage medium, which includes instructions; when the instructions run on the processor, the processor is enabled to execute the first communication method described in the above embodiment, or execute the second communication method described in the above embodiment, or execute the third communication method described in the above embodiment.

[0136] The processor involved in the embodiment of the present application may be a chip. For example, it may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a central processor unit (CPU), a network processor (NP), a digital signal processing circuit (DSP), a microcontroller unit (MCU), a programmable logic device (PLD), or other integrated chips.

[0137] It should be understood that in various embodiments of the present application, the sequence numbers of the above processes do not indicate the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0138] Those of ordinary skill in the art can realize that the modules and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0139] Those skilled in the art can clearly understand that for the convenience and conciseness of description, the specific working processes of the systems, devices, and modules described above can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein.

[0140] In several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules is only a logical function division, and there can be other division methods in actual implementation. For example, multiple modules or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling, direct coupling, or communication connection to each other can be through some interfaces, and the indirect coupling or communication connection of devices or modules can be in an electrical, mechanical, or other form.

[0141] The modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they can be located in one device, or distributed to multiple devices. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0142] In addition, the functional modules in each embodiment of the present application can be integrated in one device, or each module can exist physically alone, or two or more modules can be integrated in one device.

[0143] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wirelessly (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more media integrated therein. The available medium may be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a Solid State Disk (SSD)), etc.

[0144] As described above, the above are only the specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method, characterized in that, The communication method is applied to a repeater; the repeater includes a radio frequency channel; the method includes: Receiving a communication signal based on the radio frequency channel and transmitting the communication signal; the communication signal is an interaction signal between a base station and a first terminal device; Receiving a control signal for instructing to adjust an uplink hardware parameter of the radio frequency channel; Adjusting the uplink hardware parameter of the radio frequency channel according to the control signal.

2. The communication method according to claim 1, characterized in that, The radio frequency channel includes an adjustable band-pass filter for filtering the communication signal; the control signal includes frequency domain adjustment information; adjusting the uplink hardware parameter of the radio frequency channel according to the control signal includes: Adjusting the operating frequency domain of the adjustable band-pass filter according to the frequency domain adjustment information.

3. The communication method according to claim 1, characterized in that, The control signal includes operating time slot information; adjusting the uplink hardware parameter of the radio frequency channel according to the control signal includes: Controlling the start time of the uplink communication function of the radio frequency channel according to the operating time slot information.

4. The communication method according to any one of claims 1-3, characterized in that, The radio frequency channel further includes a power amplifier for amplifying the power of the communication signal; the control signal includes gain adjustment information; adjusting the uplink hardware parameter of the radio frequency channel according to the control signal includes: Adjusting the uplink amplification gain of the power amplifier according to the gain adjustment information.

5. The communication method according to any one of claims 1-4, characterized in that, The repeater further includes a power detection circuit coupled to the radio frequency channel; the method further includes: Obtaining a power signal based on the power detection circuit, the power signal for indicating the uplink power value of the radio frequency channel; Controlling the opening or closing of the uplink communication function of the radio frequency channel according to the power signal.

6. The communication method according to any one of claims 1-5, characterized in that, The method further includes: Performing signal processing on the communication signal based on the radio frequency channel to obtain the processed communication signal, the processed communication signal having characteristic information for indicating the identifier of the repeater.

7. The communication method according to claim 6, characterized in that, The communication signal includes a first uplink communication signal which is a signal sent by the first terminal device to the base station based on the repeater; The first uplink communication signal includes a pilot reference signal; Performing signal processing on the communication signal includes: Setting a signal vacancy interval during the duration of the pilot reference signal, and the signal vacancy interval is the characteristic information.

8. The communication method according to claim 6, characterized in that, The communication signal includes a first uplink communication signal and a downlink communication signal, the first uplink communication signal is a signal sent by the first terminal device to the base station based on the repeater, and the downlink communication signal is a signal sent by the base station to the first terminal device based on the repeater; the downlink communication signal includes a channel state reference signal; Performing signal processing on the communication signal includes: Setting a signal vacancy interval during the duration of the channel state reference signal, and the signal vacancy interval is the characteristic information; Receive a first uplink communication signal from the first terminal device and send the first uplink communication signal to the base station, where the first uplink communication signal includes terminal response information for determining that the first terminal device has received the downlink communication signal.

9. The communication method according to claim 6, characterized in that, The radio frequency channel includes a time delay circuit; the communication signal includes a first uplink communication signal which is a signal sent by the first terminal device to the base station based on the repeater. The signal processing of the communication signal includes: Increase the signal time delay of the first uplink communication signal based on the time delay circuit, and the signal time delay of the first uplink communication signal is the characteristic information.

10. A communication method, characterized in that, The method is applied to a repeater. The repeater includes a radio frequency channel; the method includes: Receive a communication signal which is an interaction signal between the base station and the first terminal device. Perform signal processing on the communication signal based on the radio frequency channel to obtain the processed communication signal, and the processed communication signal has characteristic information for indicating the identifier of the repeater. Send the processed communication signal.

11. The communication method according to claim 10, characterized in that,The communication signal includes a first uplink communication signal which is a signal sent by the first terminal device to the base station based on the repeater. The first uplink communication signal includes a pilot reference signal. The signal processing of the communication signal includes: Set a signal gap interval within the duration of the pilot reference signal, and the signal gap interval is the characteristic information.

12. The communication method according to claim 10, wherein, The communication signal includes a first uplink communication signal and a downlink communication signal. The first uplink communication signal is a signal sent by the first terminal device to the base station based on the repeater, and the downlink communication signal is a signal sent by the base station to the first terminal device based on the repeater. The downlink communication signal includes a channel state reference signal. The signal processing of the communication signal includes: Set a signal gap interval within the duration of the channel state reference signal, and the signal gap interval is the characteristic information. Receive a first uplink communication signal from the first terminal device and send the first uplink communication signal to the base station, where the first uplink communication signal includes terminal response information for indicating that the first uplink communication signal is a signal sent by the first terminal device based on the repeater.

13. The communication method according to claim 10, wherein, The radio frequency channel includes a time delay circuit; the communication signal includes a first uplink communication signal which is a signal sent by the first terminal device to the base station based on the repeater. The signal processing of the communication signal includes: Increase the signal time delay of the first uplink communication signal based on the time delay circuit, and the signal time delay of the first uplink communication signal is the characteristic information.

14. A communication method, wherein, The communication method is applied to a base station; the method includes: Receive an uplink communication signal, where the uplink communication signal includes a first uplink communication signal and / or a second uplink communication signal; the first uplink communication signal is a signal transmitted by a first terminal device to the base station through a repeater, and characteristic information or terminal response information is carried on the first uplink communication signal. The characteristic information is used to indicate the identifier of the repeater, and the terminal response information is used to indicate that the first uplink communication signal is a signal transmitted by the first terminal device based on the repeater; the second uplink communication signal is a signal transmitted by a second terminal device to the base station; Distinguish the first terminal device and the second terminal device based on the characteristic information and / or the terminal response information, and distinguish different repeaters.

15. A repeater, wherein, The repeater includes a radio frequency channel and a communication control module; where: The radio frequency channel is used to: receive a communication signal; transmit the communication signal; the communication signal is an interaction signal between the base station and the first terminal device; The communication control module is used to: Receive a control signal, where the control signal is used to indicate adjusting the uplink hardware parameters of the radio frequency channel; Adjust the uplink hardware parameters of the radio frequency channel according to the control signal.

16. The repeater according to claim 15, wherein, The radio frequency channel includes an adjustable band-pass filter; the adjustable band-pass filter is used to perform filtering processing on the communication signal; the control signal includes frequency domain adjustment information; adjusting the uplink hardware parameters of the radio frequency channel according to the control signal includes: Adjusting the operating frequency domain of the adjustable band-pass filter according to the frequency domain adjustment information.

17. The repeater according to claim 15, wherein, The control signal includes operating time slot information; adjusting the uplink hardware parameters of the radio frequency channel according to the control signal includes: Controlling the start time of the uplink communication function of the radio frequency channel according to the operating time slot information.

18. The repeater according to any one of claims 15 - 17, wherein, The radio frequency channel further includes a power amplifier; the power amplifier is used to amplify the power of the communication signal; the control signal includes gain adjustment information; adjusting the uplink hardware parameters of the radio frequency channel according to the control signal includes: Adjusting the uplink amplification gain of the power amplifier according to the gain adjustment information.

19. The repeater according to any one of claims 15 - 19, wherein, The repeater further includes a power detection circuit; the power detection circuit is coupled to the radio frequency channel; where: The power detection circuit is used to: output a power signal to the communication control module, and the power signal is used to indicate the uplink power value of the radio frequency channel; The communication control module is used to: control the opening or closing of the uplink communication function of the radio frequency channel according to the power signal.

20. The repeater according to any one of claims 15 - 19, wherein, The radio frequency channel is further used to: Perform signal processing on the communication signal to obtain the processed communication signal, and the processed communication signal has characteristic information, where the characteristic information is used to indicate the identifier of the repeater.

21. The repeater according to claim 20, wherein, The communication signal includes a first uplink communication signal, and the first uplink communication signal is a signal transmitted by the first terminal device to the base station based on the repeater; The first uplink communication signal includes a pilot reference signal;Performing signal processing on the communication signal includes: Set a signal gap interval within the duration of the pilot reference signal, and the signal gap interval is the characteristic information.

22. The repeater according to claim 20, wherein, The communication signal includes a downlink communication signal, and the downlink communication signal is a signal sent by the base station to the first terminal device based on the repeater; the downlink communication signal includes a channel state reference signal. The signal processing of the communication signal includes: Set a signal gap interval within the duration of the channel state reference signal, and the signal gap interval is the characteristic information. Receive a terminal response signal from the first terminal device and send the terminal response signal to the base station, where the terminal response signal is used to determine that the first terminal device has received the downlink communication signal.

23. The repeater according to claim 20, wherein, The radio frequency channel includes a time delay circuit; the communication signal includes a first uplink communication signal, and the first uplink communication signal is a signal sent by the first terminal device to the base station based on the repeater. The signal processing of the communication signal includes: Increase the signal time delay of the first uplink communication signal based on the time delay circuit, and the signal time delay of the first uplink communication signal is the characteristic information.

24. A repeater, wherein, The repeater includes a radio frequency channel; the radio frequency channel is used for: Receive a communication signal, where the communication signal is an interaction signal between the base station and the first terminal device. Perform signal processing on the communication signal to obtain the processed communication signal, and the processed communication signal has characteristic information, where the characteristic information is used to indicate the identifier of the repeater. Send the processed communication signal.

25. The repeater according to claim 24, wherein, The communication signal includes a first uplink communication signal, and the first uplink communication signal is a signal sent by the first terminal device to the base station based on the repeater. The first uplink communication signal includes a pilot reference signal. The signal processing of the communication signal includes: Set a signal gap interval within the duration of the pilot reference signal, and the signal gap interval is the characteristic information.

26. The repeater according to claim 24, wherein, The communication signal includes a first uplink communication signal and a downlink communication signal. The first uplink communication signal is a signal sent by the first terminal device to the base station based on the repeater, and the downlink communication signal is a signal sent by the base station to the first terminal device based on the repeater; the downlink communication signal includes a channel state reference signal. The signal processing of the communication signal includes: Set a signal gap interval within the duration of the channel state reference signal, and the signal gap interval is the characteristic information. Receive the first uplink communication signal from the first terminal device and send the first uplink communication signal to the base station, where the first uplink communication signal includes terminal response information, and the terminal response information is used to determine that the first terminal device has received the downlink communication signal.

27. The repeater according to claim 24, wherein, The radio frequency channel includes a time delay circuit; the communication signal includes a first uplink communication signal, and the first uplink communication signal is a signal sent by the first terminal device to the base station based on the repeater. The signal processing of the communication signal includes: Increasing the signal delay of the first uplink communication signal based on the delay circuit, and the signal delay of the first uplink communication signal is the characteristic information.

28. A communication device, wherein, Comprising a processor and a memory, the processor calls a computer program stored in the memory to implement the communication method according to any one of claims 1-9, or to implement the communication method according to any one of claims 10-13, or to implement the communication method according to claim 14.

29. A communication system, wherein, Comprising a base station and a repeater; the base station communicates with a first terminal device based on the repeater; the repeater is the repeater according to any one of claims 15-23, or the repeater according to any one of claims 24-27.

30. A computer-readable storage medium, wherein, The computer-readable storage medium comprises instructions; when the instructions run on a processor, the processor is caused to execute the communication method according to any one of claims 1-9, or to execute the communication method according to any one of claims 10-13, or to execute the communication method according to claim 14.

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