Repeater, communication method, and communication system

Abstract

A repeater, a communication method, and a communication system, which are applied to the technical field of wireless communications. The repeater comprises a radio frequency channel and a communication control module. The radio frequency channel is used for: receiving a communication signal; and sending the communication signal, wherein 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, wherein the control signal is used for instructing to adjust an uplink hardware parameter of the radio frequency channel. The uplink hardware parameter of the radio frequency channel is adjusted on the basis of the control signal. In embodiments of the present application, an uplink communication link of the repeater would increase the noise floor of the base station, thereby deteriorating an uplink coverage range of the base station. According to the embodiments of the present application, the uplink hardware parameter of the radio frequency channel is adjusted, so that the interference of the uplink communication link of the repeater on the base station can be reduced.

Description

Repeater, communication method and communication system

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on December 20, 2023, with application number 202311770224.6 and application name “A Repeater, Communication Method and Communication System”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of wireless communication technology, and in particular to a repeater, a communication method, and a communication system. Background Art

[0003] In wireless communication systems, base stations are deployed. Terminal devices exchange communication signals with the base stations to achieve wireless communication. However, in some scenarios, obstacles, such as those present in the signal transmission path between the base stations and some terminal devices, can place these devices in blind spots within the base station's coverage, thus impacting wireless communication.

[0004] One existing solution is to set up a repeater in the communication system, and include a radio frequency channel in the repeater. The communication signal between the base station and the terminal device in the blind spot of the base station is transferred based on the radio frequency channel, so that the base station can communicate with the terminal device in the blind spot. However, under this implementation, the communication performance of the base station is relatively low, which can be 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, thereby deteriorating the communication performance of the base station. On the other hand, the base station is also unable to distinguish and identify the terminal device that communicates directly and the terminal device that establishes communication based on the repeater, and it is also impossible to provide differentiated services for the terminal device users in the coverage area and the terminal device users in the blind spot. Summary of the Invention

[0005] The embodiments of the present application provide a repeater, a communication method, and a communication system, which improve the communication performance of a base station.

[0006] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0007] In a first aspect, embodiments of the present application provide a communication method, which is applied to a repeater. The repeater includes a radio frequency channel. The method comprises: receiving a communication signal and transmitting a communication signal based on the radio frequency channel; the communication signal being an exchange signal between a base station and a first terminal device; receiving a control signal, the control signal being used to instruct adjustment of uplink hardware parameters of the radio frequency channel; and adjusting the uplink hardware parameters of the radio frequency channel based on the control signal.

[0008] In an 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 also transmits a certain amount of interference noise to the base station, thereby increasing the bottom noise of the base station and deteriorating the uplink coverage of the base station. When the uplink communication link of the radio frequency channel is working, this solution receives a control signal and modulates the uplink hardware parameters of the radio frequency channel based on the control signal, thereby reducing the uplink interference noise as much as possible on the basis of achieving normal wireless communication, thereby improving the communication performance of the base station.

[0009] In one possible implementation, the radio frequency channel includes an adjustable bandpass filter. The adjustable bandpass filter is used to filter the communication signal. The control signal includes frequency domain adjustment information. The above-mentioned adjustment of the uplink hardware parameters of the radio frequency channel according to the control signal includes: adjusting the operating frequency domain of the adjustable bandpass filter according to the frequency domain adjustment information. In an embodiment of the present application, the operating frequency domain of the bandpass filter in the uplink communication link of the radio frequency channel determines the frequency domain range of the uplink noise signal. Therefore, by setting an adjustable bandpass filter. The operating frequency domain of the adjustable bandpass filter is adjusted based on the control signal to reduce its uplink operating frequency domain range as much as possible while ensuring the normal operation of the uplink communication link of the repeater.

[0010] In one possible embodiment, the control signal includes working time slot information. Adjusting the uplink hardware parameters of the radio frequency channel based on the control signal includes controlling the activation time of the uplink communication function of the radio frequency channel based on the working time slot information. In an embodiment of the present application, the activation time of the uplink communication power can be controlled by the working time slot information. For example, the uplink communication function can be disabled during a time period when the uplink communication link of the repeater does not need to transmit the first uplink communication signal, thereby preventing the uplink interference noise from affecting the base station during the time period when the first uplink communication signal is not transmitted.

[0011] In one possible implementation, the RF channel further includes a power amplifier. The power amplifier is configured to amplify the power of communication signals. The control signal includes gain adjustment information. Adjusting the uplink hardware parameters of the RF channel based on the control signal includes adjusting the uplink amplification gain of the power amplifier based on the gain adjustment information. In this embodiment of the present application, the uplink amplification gain of the power amplifier can be adjusted to minimize the uplink amplification gain while ensuring the normal operation of the uplink communication link, thereby reducing the power of the amplified uplink noise signal.

[0012] In one 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, the power signal being used to indicate the uplink power value of the radio frequency channel. Controlling the uplink communication function of the radio frequency channel to be turned on or off according to the power signal. In an embodiment 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 the repeater currently has a first uplink communication signal that needs to be transmitted. During a period when there is no first uplink communication that needs to be transmitted, its uplink communication function can be turned off to reduce the uplink noise signal during this period.

[0013] 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, the processed communication signal having characteristic information, and the characteristic information is used to indicate the identification of the repeater. In an embodiment of the present application, signal processing can be performed on the communication signal transmitted by the repeater. Usually, there are no baseband processing-related devices in the repeater. The repeater does not perform decoding, compilation, and other processing on the transmitted communication signal. The embodiment of the present application is based on the hardware circuit of the radio frequency channel, and sets characteristic information on the communication signal in a signal processing manner. Based on the interactive communication signal of the repeater, the base station or the first terminal device can determine that the received communication signal comes from the transit of the repeater through the characteristic information, and can perform corresponding identification operations.

[0014] In one 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 gap interval within the duration of the pilot reference signal, and the signal gap interval is characteristic information. In an embodiment of the present application, a signal gap interval can be set for the pilot reference signal in the first uplink communication signal. The subsequent base station distinguishes and identifies the second terminal device for direct communication and the second terminal device for indirect communication based on the repeater based on the signal gap interval of the pilot reference signal in the received first uplink communication signal.

[0015] In one possible embodiment, 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 via a repeater, and the downlink communication signal is a signal sent by the base station to the first terminal device via the repeater. The downlink communication signal includes a channel state reference signal (CSR). The signal processing of the communication signal includes setting a signal gap interval within the duration of the CSR, where the signal gap interval serves as characteristic information. The first uplink communication signal is received from the first terminal device and sent to the base station. The first uplink communication signal includes terminal response information, which is used to determine whether the first terminal device has received the downlink communication signal. In this embodiment of the present application, the signal gap interval can be set as characteristic information in the downlink communication signal sent by the base station. The first terminal device identifies the downlink communication signal as originating from a repeater based on the characteristic information in the received downlink communication signal and can accordingly send a first uplink communication signal with a terminal response signal. The base station then distinguishes and identifies a second terminal device communicating directly from a second terminal device communicating indirectly via the repeater based on the terminal response signal in the received first uplink communication signal.

[0016] In one possible implementation, the radio frequency channel includes a 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 above-mentioned 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. In the embodiment of the present application, the signal delay of the first uplink communication signal can be increased by the delay circuit. The base station subsequently 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 delay size in the received first uplink communication signal.

[0017] In a second aspect, 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 comprises: receiving a communication signal, which is an exchange 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, wherein the processed communication signal has characteristic information, and the characteristic information is used to indicate the identity of the repeater; and transmitting the processed communication signal.

[0018] In one possible implementation, the communication signal includes a first uplink communication signal, which is a signal sent by the first terminal device to the base station via 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 within the duration of the pilot reference signal, where the signal gap interval is characteristic information.

[0019] In one possible embodiment, 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 of the communication signal includes: setting a signal gap interval within the duration of the channel state reference signal, and the signal gap interval is characteristic information. The first uplink communication signal is received from the first terminal device and sent 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.

[0020] In one possible implementation, the radio frequency channel includes a 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 via a repeater. The signal processing of the communication signal includes increasing a signal delay of the first uplink communication signal based on the delay circuit, where the signal delay of the first uplink communication signal serves as characteristic information.

[0021] 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, the uplink communication signal including 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 a base station via a repeater. The first uplink communication signal carries characteristic information or terminal response information. The characteristic information is used to indicate an 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. The first terminal device and the second terminal device are distinguished based on the characteristic information and / or the terminal response information, as well as different repeaters.

[0022] In a fourth aspect, embodiments of the present application further provide a repeater station, comprising a radio frequency channel and a communication control module. The radio frequency channel is configured to receive and transmit communication signals, which are signals exchanged between a base station and a first terminal device. The communication control module is configured to receive a control signal instructing adjustment of uplink hardware parameters of the radio frequency channel and adjust the uplink hardware parameters of the radio frequency channel according to the control signal.

[0023] In one possible implementation, the radio frequency channel includes an adjustable bandpass filter. The adjustable bandpass filter is configured to filter communication signals. The control signal includes frequency domain adjustment information. Adjusting uplink hardware parameters of the radio frequency channel based on the control signal includes adjusting the operating frequency domain of the adjustable bandpass filter based on the frequency domain adjustment information.

[0024] 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.

[0025] In one possible implementation, the radio frequency channel further includes a power amplifier. The power amplifier is configured 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 based on the control signal includes adjusting the uplink amplification gain of the power amplifier based on the gain adjustment information.

[0026] In one possible embodiment, the repeater further includes a power detection circuit. The power detection circuit is coupled to the RF channel. The power detection circuit is configured to output a power signal to the communication control module, the power signal indicating the uplink power value of the RF channel. The communication control module is configured to control the uplink communication function of the RF channel to be enabled or disabled based on the power signal.

[0027] 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, where the processed communication signal has characteristic information, and the characteristic information is used to indicate an identifier of the repeater.

[0028] In one possible implementation, the communication signal includes a first uplink communication signal, which is a signal sent by the first terminal device to the base station via 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 within the duration of the pilot reference signal, where the signal gap interval is characteristic information.

[0029] In one possible implementation, the communication signal includes a downlink communication signal, which is a signal sent by the base station to the first terminal device via a repeater. The downlink communication signal includes a channel state reference signal. The signal processing of the communication signal includes setting a signal gap interval within the duration of the channel state reference signal, where the signal gap interval is characteristic information. A terminal response signal is received from the first terminal device and sent to the base station. The terminal response signal is used to confirm that the first terminal device has received the downlink communication signal.

[0030] In one possible implementation, the radio frequency channel includes a 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 via a repeater. The signal processing of the communication signal includes increasing a signal delay of the first uplink communication signal based on the delay circuit, where the signal delay of the first uplink communication signal serves as characteristic information.

[0031] In a fifth aspect, embodiments of the present application further provide a repeater station, comprising a radio frequency channel. The radio frequency channel is configured to: receive a communication signal, which is an exchange signal between a base station and a first terminal device; perform signal processing on the communication signal to obtain a processed communication signal, the processed communication signal having characteristic information, the characteristic information being used to indicate an identifier of the repeater; and transmit the processed communication signal.

[0032] In one possible implementation, the communication signal includes a first uplink communication signal, which is a signal sent by the first terminal device to the base station via 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 within the duration of the pilot reference signal, where the signal gap interval is characteristic information.

[0033] In one possible embodiment, 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 of the communication signal includes: setting a signal gap interval within the duration of the channel state reference signal, and the signal gap interval is characteristic information. The first uplink communication signal is received from the first terminal device and sent 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.

[0034] In one possible implementation, the radio frequency channel includes a 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 via a repeater. The signal processing of the communication signal includes increasing a signal delay of the first uplink communication signal based on the delay circuit, where the signal delay of the first uplink communication signal serves as characteristic information.

[0035] In a sixth aspect, an embodiment of the present application further provides a communication device, comprising a processor and a memory. The processor invokes a computer program stored in the memory to implement the communication method described in the first aspect, or the communication method described in the second aspect, or the communication method described in the third aspect.

[0036] In a seventh aspect, embodiments of the present application further provide a communication system, 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 described in the fourth aspect above, or the repeater described in the fifth aspect above.

[0037] In an eighth aspect, embodiments of the present application further provide a computer-readable storage medium comprising instructions. When the instructions are executed on a processor, the processor executes the communication method described in the first aspect, or the communication method described in the second aspect, or the communication method described in the third aspect.

[0038] Regarding the technical principles and beneficial effects of the second, third, fourth, fifth, sixth, seventh and eighth aspects, please refer to the relevant description of the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] FIG1 is a schematic diagram of the structure of a communication system provided in an embodiment of the present application;

[0040] FIG2 is a structural diagram of a repeater provided in an embodiment of the present application;

[0041] FIG3 is a schematic diagram of bottom noise changes before and after a base station is connected to a repeater according to an embodiment of the present application;

[0042] FIG4 is a schematic diagram of adding a signal gap interval to a reference signal according to an embodiment of the present application;

[0043] FIG5 is a second structural diagram of another repeater provided in an embodiment of the present application;

[0044] FIG6 is a third structural diagram of another repeater provided in an embodiment of the present application;

[0045] FIG7 is a fourth structural diagram of another repeater provided in an embodiment of the present application;

[0046] FIG8 is a fifth structural diagram of another repeater provided in an embodiment of the present application;

[0047] FIG9 is a flowchart of a first communication method according to an embodiment of the present application;

[0048] FIG10 is a second flow chart of another first communication method provided in an embodiment of the present application;

[0049] FIG11 is a third flow chart of another first communication method provided in an embodiment of the present application;

[0050] FIG12 is a schematic diagram of a flow chart of a second communication method provided in an embodiment of the present application;

[0051] FIG13 is a schematic diagram of frequency domain range distribution when scheduling different frequency domain resources for a repeater according to an embodiment of the present application;

[0052] FIG14 is a flow chart of a third communication method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0053] It should be noted that the terms "first", "second", etc. involved in the embodiments of the present application are only used to distinguish features of the same type and cannot be understood as indicating relative importance, quantity, order, etc.

[0054] The terms "exemplary" or "for example" in the embodiments of this application are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0055] The terms "coupling" and "connection" involved in the embodiments of the present application should be understood in a broad sense. For example, they may refer to a physical direct connection, or an indirect connection achieved through electronic devices, such as a connection achieved through resistors, inductors, capacitors or other electronic devices.

[0056] An embodiment of the present application provides a communication system 1000, as shown in FIG1 , in which 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 or the like between the signal transmission paths of some terminal devices (user equipment, UE). These obstacles Z will increase the path loss of the communication signal transmission between the terminal device UE and the base station 100, causing the signal amplitude of the communication signal to be 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 it the coverage blind spot of the base station 100. When the terminal device UE is in the coverage blind spot, the wireless communication between the terminal device UE and the base station 100 will be affected. In order to solve the problem that the base station cannot communicate wirelessly with the terminal device in the coverage blind spot, a repeater 200 can be set in the communication system. The repeater 200 includes a radio frequency channel 210. For a first terminal device UE1 in a coverage blind spot of the base station 100, communication signals are relayed between the base station 100 and the first terminal device UE1 in the coverage blind spot based on the radio frequency channel 210, so that the base station 100 can communicate with the first terminal device UE1 in the coverage blind spot. At the same time, the base station 100 can also communicate with a second terminal device UE2 in the coverage area.

[0057] In some possible implementations, the communication signals exchanged between the base station 100 and the first terminal device UE1 include a first uplink communication signal and a downlink communication signal. As shown in Figure 2, 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. Specifically:

[0058] First antenna A1 receives downlink communication signals from base station 100 and transmits them to downlink RF channel X through first duplexer D1. Downlink RF channel X filters and amplifies the downlink communication signals and then transmits them to first terminal device UE1 through second duplexer D2 and second antenna A2, completing communication between base station 100 and first terminal device UE1.

[0059] The second antenna A2 receives the first uplink communication signal from the first terminal device UE1 and transmits it to the uplink RF channel S through the second duplexer D2. After filtering and power amplifying the first uplink communication signal, the uplink RF channel S sends the first uplink communication signal to the base station 100 through the first duplexer D1 and the first antenna A1, thereby completing the communication between the first terminal device UE1 and the base station 100.

[0060] 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 also interacts with the second terminal device UE2 within the coverage area, for example, receiving the second uplink communication signal sent by the second terminal device UE2.

[0061] However, in the above application scenario, there are the following two problems:

[0062] Problem 1: Repeater 200's RF channel 210, as a hardware circuit for relaying communication signals, does not involve baseband data processing and decoding. Therefore, base station 100 cannot distinguish between communication signals from a second terminal device UE2 received directly within its coverage area and signals from a first terminal device UE1 received via repeater 200 in a coverage blind spot. Base station 100 cannot provide differentiated services for terminal devices UEs with different interaction modes.

[0063] Problem 2: While repeater 200 can meet the basic communication needs of the first end user UE1 within the coverage blind spot, it degrades the uplink coverage of base station 100. This is due to the following reasons: First, the space in which repeater 200 resides is host to electromagnetic wave signals of varying frequency bands and uses. As a relay station for RF signals, repeater 200 not only receives the communication signals from first end user UE1 and transmits them to base station 100, but also forwards other external interference signals within the space to the base station. Furthermore, repeater 200 itself generates thermal noise and other external interference noise. This external interference noise raises the noise floor of base station 100, degrading its uplink coverage. Second, as a relay station, repeater 200 also amplifies the power gain of the transferred signals during the RF signal relay process. This power gain amplification further amplifies the interference noise transmitted to base station 100, further degrading its uplink coverage. This results in a reduction in the coverage of base station 100's cell after base station 100 connects to repeater 200. Secondary terminal device UE2, located at the edge of the original coverage area, falls into a new coverage blind spot, unable to communicate properly with base station 100. Therefore, the application of repeater 200 shown in Figure 1 essentially sacrifices the edge of base station 100's original coverage area to ensure communication within the coverage blind spot. This communication approach does not truly improve base station 100's coverage. As shown in Figure 3, a sampling analysis of base station 100 and its associated repeater 200 in a certain city revealed that the connection of repeater 200 increased the uplink interference noise of base station 100 by 4dB. Furthermore, sampling statistics across multiple cities revealed 832 interfering cells in the F1800 frequency band, accounting for 5.37% of the total sampled area. Of the existing interference types, repeater 200 accounted for over 40%. The interference intensity is distributed in [-110, -100], and the interference intensity accounts for more than 90%.

[0064] In order to solve the problem described in Problem 1 above that the base station 100 cannot identify the first terminal user UE1 and the second terminal user UE2, in some possible implementations, the repeater 200 can be a network controlled repeater (NCR). During the interaction of communication signals by the repeater 200, the communication signal can be processed 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 the communication signal. Perform signal processing on the communication signal to obtain a processed communication signal. The processed communication signal has characteristic information, and the characteristic information is used to indicate the identification of the repeater 200. Send the processed communication signal.

[0065] In the embodiment of the present application, the repeater 200 generally does not include devices related to baseband processing, and it only serves as a device for transferring and amplifying radio frequency signals. Therefore, it is difficult for the repeater 200 to parse the communication signal and set the data identification in the data domain. However, the radio frequency channel 210 serves as hardware for signal processing (such as signal conduction, signal amplification, and signal filtering, etc.). This solution can perform some special processing on the communication signal in the process of signal processing by the radio frequency channel 210 without affecting normal wireless communication, so as to assist the base station 100 in realizing the recognition of the first uplink communication signal sent by the first terminal device UE1 and the second uplink communication signal transmitted by the second terminal device UE2. At the same time, the base station 100 can also provide differentiated customized services based on recognition.

[0066] In some possible implementations, the RF channel 210 of the repeater 200 may perform signal processing on the first uplink communication signal based on the uplink RF channel S, so that the processed first uplink communication signal has characteristic information. The following uses two signal processing methods under Method 1 and Method 2 as examples:

[0067] Method 1: The first uplink communication signal includes a pilot reference signal (SRS). The above-mentioned signal processing of the communication signal includes: setting a signal gap interval within the duration of the pilot reference signal, and the signal gap interval is characteristic information. In the embodiment of the present application, SRS is a pilot signal agreed in a communication standard, which is manifested as a valid signal transmitted on the uplink for a period of time. The bandwidth of SRS is larger than the bandwidth allocated to a single UE, and its purpose is to provide a reference for 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. In general, as shown in Figure 4, in the communication signal sent by each terminal device UE, SRS is a continuous valid signal. By designing the uplink radio frequency channel S of the radio frequency channel 210, during the process of signal processing the first uplink communication signal, the uplink radio frequency channel S can generate a signal gap interval for the SRS on the first uplink communication signal by shutting down the signal transmission function. By using the signal gap interval as 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.

[0068] Method 2: A delay can be added to the first uplink communication signal to distinguish the first uplink communication signal from the second uplink communication signal. As shown in Figure 5, the radio frequency channel 210 includes a first delay circuit 214. The above-mentioned signal processing of the communication signal includes: increasing the signal delay of the first uplink communication signal based on the first delay circuit 214, and the signal delay of the first uplink communication signal is the characteristic information. In the embodiment of the present application, by adding a signal delay to the first delay circuit 214, and using the signal delay as 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-mentioned method 2, a second delay circuit 215 can also be set in the downlink radio frequency channel to perform delay processing on the downlink communication signal.

[0069] In some possible implementations, the RF channel 210 of the repeater 200 may perform signal processing on the downlink communication signal based on the downlink RF channel X so that the processed downlink communication signal has characteristic information. The following is an example of the signal processing method of method 3:

[0070] Mode three: The downlink communication signal includes a channel state information reference signal (CSI RS). As shown in Figure 4, the above-mentioned 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. A first uplink communication signal is received from the first terminal device UE1, and the first uplink communication signal is sent to the base station 100. The first uplink communication signal includes terminal response information, and the terminal response information is used to determine that the first terminal device UE1 has received the downlink communication signal. In an embodiment of the present application, the channel state reference signal is a very important reference signal in the new air interface (network controlled, NR) system. Because the channel conditions of wireless communication may change continuously, the terminal device UE needs to provide feedback on 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 provides feedback based on the received channel state reference signal. In this process, the downlink RF channel X can also perform signal processing on the downlink communication signal so that the first terminal device UE1 receives a downlink communication signal with characteristic information. Then, the first terminal device UE1 may also respond to the received downlink communication signal with the characteristic information by carrying feedback terminal response information in the first uplink communication signal sent, 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 from the second communication signal through the first uplink communication signal including the terminal response information.

[0071] In some possible implementations, an isolator, an automatic gain control circuit, and a low-noise amplifier may also be provided in the uplink RF channel S and the downlink RF channel X of the RF channel 210. In the embodiment of the present application, the isolator can achieve transmission and reception isolation between the uplink RF channel S and the downlink RF channel X to ensure the normal operation of duplex communication. The automatic gain control circuit can assist in implementing gain feedback adjustment for power amplification in the uplink RF channel S and the downlink RF channel X. The low-noise amplifier can perform signal amplification processing on the communication signals after filtering in the uplink RF channel S and the downlink RF channel X.

[0072] In some possible implementations, based on the above-described methods 1, 2, and 3, the characteristic information can be designed or adjusted to match different repeaters 200. As shown in Figure 6, the repeater 200 also includes a communication control module 220. The communication control module 220 can adjust the characteristic information. In some examples, in the above-described methods 1 and 3, the communication control module 220 can control the timing and length of the signal gap interval to distinguish different repeaters 200. In the above-described method 2, the communication control module 220 can control the delay length of the first delay circuit 214 to distinguish different repeaters 200.

[0073] Based on the implementations of Methods 1, 2, and 3 described above, base station 100 can distinguish between the first uplink communication signal and the second communication signal, thereby resolving Problem 1. In actual applications, base station 100 may receive first uplink communication signals transmitted by multiple repeaters 200. These first uplink communication signals are distinguished based on the technical implementations described in the different methods.

[0074] To address the issue described in Problem 2 above, where the first uplink communication signal transmitted by the repeater 200 degrades the uplink coverage of the base station 100, in some possible implementations, the uplink hardware parameters of the RF channel 210 of the repeater 200 can be adjusted and optimized. In some possible implementations, as shown in FIG7 , the repeater 200 includes a RF channel 210 and a communication control module 220. The RF channel 210 is configured to receive communication signals and transmit communication signals. The communication control module 220 is configured to receive a control signal, the control signal being used to instruct adjustment of the uplink hardware parameters of the RF channel 210. The uplink hardware parameters of the RF channel 210 are adjusted based on the control signal. In this embodiment of the present application, by adjusting the uplink hardware parameters of the repeater 200, it is possible to minimize the degradation of the uplink coverage of the base station 100 caused by the first uplink communication signal while ensuring normal communication between the base station 100 and the first terminal device UE1.

[0075] 7 , the uplink coverage of the base station 100 can be optimized by adjusting the uplink hardware parameters of the uplink RF channel S of the RF channel 210. In some examples, the uplink hardware parameters may include frequency domain, time domain, and uplink amplification gain.

[0076] In some possible implementations, interference reduction is achieved by adjusting the frequency domain of the RF channel 210. As shown in Figure 7, the RF channel 210 includes an adjustable bandpass filter 211. The adjustable bandpass filter 211 is used to filter communication signals. The control signal includes frequency domain adjustment information. Adjusting the uplink hardware parameters of the RF channel 210 based on the control signal includes adjusting the operating frequency domain of the adjustable bandpass filter 211 based on the frequency domain adjustment information. In this embodiment of the present application, the repeater 200 receives electromagnetic wave signals of different frequency bands using the second antenna A2 and performs filtering using the bandpass filter 211, allowing signals within a certain frequency range to be filtered and transmitted to the base station 100 on the uplink via the first antenna A1. Therefore, the size of the operating frequency domain of the uplink RF channel S also determines the size of the frequency domain of the interference noise transmitted to the base station 100. Theoretically, while ensuring normal communication, the smaller the operating frequency domain of the uplink RF channel S, the less uplink interference to the base station 100.

[0077] In some examples, the adjustable bandpass filter 211 can implement bandpass adjustment based on the digital domain or based on circuit control.

[0078] In some possible implementations, interference reduction is achieved by adjusting the time domain of the RF channel 210. As shown in FIG7 , the control signal includes operating time slot information. Adjusting the uplink hardware parameters of the RF channel 210 according to the control signal includes controlling the activation time of the uplink communication function of the RF channel 210 according to the operating time slot information. In an embodiment of the present application, by adjusting the operating time slot of the uplink RF channel S and reducing the operating time of the uplink RF channel S, the uplink communication function can be disabled when the uplink RF channel S is not transmitting a valid first uplink communication signal, thereby preventing useless interference noise from being transmitted to the base station 100 via the uplink. Therefore, interference reduction can also be achieved by controlling the time domain of the uplink RF channel 210. For example, the activation time of the uplink communication function can be controlled by controlling whether a certain component in the uplink RF channel S is operating. Alternatively, a switch can be provided within the uplink RF channel S or in the input path or output path of the uplink RF channel S to control the activation time of the uplink communication function.

[0079] In some possible implementations, interference reduction is achieved by adjusting the uplink amplification gain of the radio frequency channel 210. As shown in Figure 7, the radio frequency channel 210 also includes a power amplifier 212. The power amplifier 212 is used to power amplify the communication signal. The control signal includes gain adjustment information. The above-mentioned adjustment of 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 embodiment of the present application, in order to ensure the signal quality of the first uplink communication signal. The uplink radio frequency channel S will power amplify 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 power amplified. The interference noise after power amplification will bring greater noise interference problems 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 to achieve the reduction of interference noise.

[0080] In some possible implementations, as shown in FIG8 , the repeater 200 further includes a power detection circuit 230. The power detection circuit 230 is coupled to the uplink RF channel S of the RF channel 210. The power detection circuit 230 is configured to output a power signal to the communication control module 220, the power signal indicating the uplink power value of the RF channel 210. The communication control module 220 is configured to control whether the uplink communication function of the RF channel 210 is enabled or disabled based on the power signal. In this embodiment of the present application, a corresponding power detection circuit 230 may also be provided in the repeater 200 to detect the uplink power value of the uplink RF channel S. Based on the uplink power value, the communication control module 220 may determine whether a first uplink communication signal currently requires relay transmission. If no first uplink communication signal requires relay transmission, the uplink RF channel S may be disabled to disable the uplink communication function. This prevents noise interference to the base station 100 when no first uplink communication signal requires transmission. For example, the embodiment of the present application does not limit the coupling position of the power detection circuit 230 on the uplink radio frequency channel S. The power detection circuit 230 can be coupled to any position on the transmission path of the uplink radio frequency channel S where the uplink power value can be detected.

[0081] In some possible implementations, as shown in Figures 7 and 8, the communication system 1000 further includes a network management system 300. The network management system 300 and / or the base station 100 can send a control signal to the repeater 200 to adjust the uplink hardware parameters of the RF channel 210 of the repeater 200.

[0082] In order to solve the problem described in the first problem above that the base station 100 cannot identify the first end user UE1 and the second end user UE2, the communication system 1000 can execute the first communication method including the operations of steps S110 to S140 as shown in FIG9 :

[0083] S110 , the radio frequency channel 210 of the repeater 200 receives a communication signal.

[0084] In some possible implementations, the communication signal includes a first uplink communication signal and a downlink communication signal. As shown in Figures 5 and 6, the RF channel 210 can receive the first uplink communication signal based on the uplink RF channel S, and can also receive the first downlink communication signal based on the downlink RF channel X.

[0085] S120 : The radio frequency channel 210 of the repeater 200 processes the communication signal to obtain a processed communication signal.

[0086] In some possible implementations, the processed communication signal has characteristic information, and the characteristic information is used to indicate the identification of the repeater 200. In the embodiment of the present application, the first uplink communication signal and the downlink communication signal are communication signals for interaction between the base station 100 and the first terminal user UE1 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, the base station 100 and the first terminal device UE1 can identify that the received information comes from the relay of the repeater 200 based on the characteristic information. And corresponding differentiation and identification operations can be performed.

[0087] In some examples, signal processing may be performed on the first uplink communication signal to obtain a signal-processed first uplink communication signal.

[0088] For example, as shown in FIG4 , based on the above-described method 1, a signal gap interval can be set in the pilot reference signal of the first uplink communication signal, and the signal gap interval can be used as characteristic information. In some examples, one or more of the following parameters of the signal gap interval are used to identify the repeater: the time of occurrence within the duration of the pilot reference signal, the duration of the gap interval, and the duration between multiple signal gap intervals. In an embodiment of the present application, as shown in FIG4 , different repeaters 200 can set signal gap intervals at different times within the duration of the transmitted pilot communication signal. Different repeaters 200 can be distinguished and identified based on the time of the signal gap interval on the first uplink communication signal. Alternatively, the gap duration can be set to different values. Alternatively, the duration of the valid signal interval between two adjacent signal gap intervals on the pilot communication signal can be set to distinguish and identify different repeaters 200.

[0089] For example, as shown in FIG5 , a signal delay can be added to the first uplink communication signal based on the second method described above, and the signal delay can be used as characteristic information. For example, when the signal delay is increased, 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 embodiment of the present application, in some application scenarios, certain technical standards exist that limit the communication behavior of the base station 100. The base station 100 only receives uplink communication signals within the cell radius. In this case, the increased delay of the repeater 200 can be limited.

[0090] In some examples, signal processing may be performed on the downlink communication signal to obtain a first uplink communication signal after signal processing.

[0091] Exemplarily, as shown in FIG4 , a signal gap interval can be set in the channel state reference signal of the downlink communication signal based on the above-mentioned method three, and the signal gap interval can be used as characteristic information. In an embodiment 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 send a first uplink communication signal to the base station 100 in response to the characteristic information in the downlink communication signal, and set 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. The subsequent base station can achieve differentiation and identification based on the first uplink communication signal including the terminal response information.

[0092] In some examples, as shown in FIG6 , the communication control module 220 in the radio frequency channel 210 may receive a feature adjustment instruction and adjust a feature value of feature information of the corresponding repeater 200 based on the feature adjustment instruction.

[0093] S130 : The radio frequency channel 210 of the repeater 200 sends the processed communication signal.

[0094] In some examples, as shown in Figure 10, taking the example of carrying characteristic information on a first uplink communication signal, in step S110, repeater 200 receives the first uplink communication signal. In step S120, repeater 200 processes the first uplink communication signal to obtain a first uplink communication signal having the characteristic information. In step S130, repeater 200 transmits the processed first uplink communication signal having the characteristic information to base station 100.

[0095] In some examples, as shown in FIG11 , taking the example of carrying characteristic information on a 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 containing the characteristic information. In this case, step S130 may include the following operations: Step S131 - Step S133: In step S131, the repeater 200 transmits the processed downlink communication signal containing the characteristic information to the first terminal device UE1. Then, in step S132, the repeater 200 receives a first uplink communication signal including terminal response information from the first terminal device UE1. In step S133, the repeater 200 forwards and transmits the first uplink communication signal including the terminal response information to the base station 100.

[0096] S140: The base station 100 performs identification processing.

[0097] In some possible implementations, base station 100 receives a first uplink communication signal and a second uplink communication signal. The first uplink communication signal is a signal transmitted by first terminal device UE1 to base station 100 via repeater 200. The second uplink communication signal is a signal transmitted by second terminal device UE2 to base station 100. In some examples, the first uplink communication signal received by base station 100 may be from different repeaters 200. In some examples, the first uplink communication signal transmitted 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 include signal delay or signal gap interval.

[0098] In some possible implementations, the base station 100 may determine whether the received uplink communication signal contains characteristic information or terminal response information, and whether the uplink communication signal is the first uplink communication signal or the second uplink communication signal.

[0099] In some possible implementations, the base station 100 may distinguish which specific repeater 200 the first uplink communication signal comes from based on different characteristic information in the received first uplink communication signal.

[0100] In some possible implementations, the base station 100 may allocate and schedule frequency domain resources or time domain resources for different repeaters 200 and second terminal devices UE2 based on the results of differentiation and identification.

[0101] In some possible implementations, the base station 100 may calculate the uplink average power of different repeaters 100 based on the distinguishing and identifying structure.

[0102] In order to solve the problem described in the second problem above that the first uplink communication signal transmitted by the repeater 200 deteriorates the uplink coverage of the base station 100, the communication system 1000 can execute the second communication method including steps S210 to S230 as shown in FIG12 :

[0103] S210 , receiving a communication signal based on the radio frequency channel 210 .

[0104] In some possible implementations, as shown in Figures 7 and 8 , an uplink radio frequency channel S of the radio frequency channel 210 in the repeater 200 is activated based on the second antenna A. After activation, 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 is activated, the following problems may occur:

[0105] In some examples, while receiving the first uplink communication signal via second antenna A, the uplink radio frequency channel S also receives other electromagnetic wave signals in space. Generally, second antenna A can receive electromagnetic wave signals within a relatively large frequency range. A bandpass filter is provided in the uplink radio frequency channel S to filter signals within the uplink operating frequency domain of the uplink radio frequency channel S. Because traditional base stations 100 do not implement frequency domain scheduling between the second terminal device UE2 and the repeater 200, the uplink operating frequency domains of the repeater 200 and the second terminal device UE2 are both relatively large. For the base station 100, received electromagnetic wave signals other than the first uplink communication signal are perceived as interference noise. Therefore, the larger the frequency band of the electromagnetic wave signal, 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 affects the uplink coverage range of the base station 100.

[0106] In some examples, as shown in Figures 7 and 8, a power amplifier 212 is further provided in the uplink radio frequency channel S of the repeater 200. The repeater 200 can perform power amplification on 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 also amplifies other interference noise 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 range 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 range of the base station 100.

[0107] In some examples, as shown in Figures 7 and 8, when the first terminal device UE1 is not transmitting the first uplink communication signal during the time slot when the uplink RF channel S of the repeater 200 is operating, the uplink RF channel S only transmits interference noise to the base station 100 during the operating time slot. In this case, the repeater 200 fails to function as a relay station and instead becomes a noise source that degrades communication quality. Therefore, the design of the repeater 200's operating time slot can also affect the uplink coverage of the base station 100.

[0108] S220 : The repeater 200 receives the control signal and adjusts the uplink hardware parameters of the radio frequency channel 210 according to the control signal.

[0109] 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.

[0110] In some possible implementations, as shown in Figures 7 and 8, the communication control module 220 of the repeater 200 receives a control signal. The control signal is used to instruct adjustment of the uplink hardware parameters of the radio frequency channel 210, thereby enabling signal processing of 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, operating time slot information, and gain adjustment information. This information corresponds to adjusting the uplink operating frequency domain, uplink communication function activation, and uplink amplification gain, among the uplink hardware parameters of the radio frequency channel 210.

[0111] In some examples, the control signal includes frequency domain adjustment information. The above-mentioned adjustment of the uplink hardware parameters of the RF channel 210 according to the control signal includes: adjusting the operating frequency domain of the adjustable bandpass filter 211 according to the frequency domain adjustment information. In an embodiment of the present application, the communication control module 220 can adjust the uplink operating frequency domain of the uplink RF channel S based on the control signal. The specific adjustment method can be: setting the adjustable bandpass filter 211 in the uplink RF channel S, and adjusting the filter pass frequency domain of the adjustable bandpass filter 211.

[0112] In some examples, the control signal includes working time slot information. Adjusting the uplink hardware parameters of the radio frequency channel 210 according to the control signal includes: controlling the starting working time of the uplink communication function of the radio frequency channel 210 according to the working time slot information. In an embodiment of the present application, the working time of the uplink radio frequency channel S can be controlled to reduce the working time of the uplink radio frequency channel S when there is no first uplink communication signal, thereby reducing 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 highest power consumption in the entire uplink radio frequency channel S. By controlling the power amplifier 212 to be turned on and off, the power consumption can be reduced when the uplink radio frequency channel S is not working.

[0113] In some examples, 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 embodiment of the present application, by adjusting the uplink amplification gain of the power amplifier 212 in the uplink radio frequency channel S, the uplink amplification gain of the power amplifier 212 is reduced as much as possible while ensuring normal communication between the base station 100 and the first terminal device UE1, thereby reducing the power of interference noise during the operating time of the uplink radio frequency channel S.

[0114] In some possible implementations, in addition to adjusting the uplink hardware parameters of the RF channel 210 based on the control signal in step S220, the repeater 200 may also control the uplink communication function of the uplink RF channel S based on the uplink power value detected by the repeater 200. As shown in Figure 8, the power detection circuit 230 generates a power signal indicating the uplink power value of the RF channel 210; the uplink communication function of the RF channel 210 is then controlled to be on or off based on the power signal. For example, when the uplink power value reaches a certain threshold, it can be determined that the first uplink communication signal has been received, and the communication control module 220 turns on the uplink RF channel S. If the uplink power value falls below the threshold for a certain period of time or if no power is detected, the communication control module 220 turns off the uplink RF channel S. For example, the power detection circuit 230 can detect the power of different channels to determine the uplink power value. For example, the channel power of a physical uplink control channel (PUCCH) and / or a physical random access channel (PRACH) may be detected, and the detection result may be used as the uplink power value.

[0115] S230 , transmitting a communication signal based on the radio frequency channel 210 .

[0116] In the embodiment of the present application, a first uplink communication signal is received in step S210, and signal processing is performed on the received first uplink communication signal 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 to the first uplink communication signal that has not undergone the signal processing in step S220, after the signal processing in step S220, the base station 100 receives less interference noise during the process of receiving the processed first uplink communication signal, thereby significantly preventing the deterioration of the uplink coverage of the base station 100 after the repeater 200 is connected to the base station 100.

[0117] In some possible implementations, the uplink hardware parameters in step S210 can be calculated based on different algorithmic strategies. Furthermore, the calculation of the relevant uplink hardware parameters 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, the design can be adapted to the application scenario. Several specific examples are provided below:

[0118] 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 300:

[0119] In some examples, as shown in Figures 6, 7, and 8, the repeater 200 can relay communications between the first terminal device UE1 and the base station 100 based on the radio frequency channel 210. Furthermore, the repeater 200 can also communicate with the base station 100 as a network node based on the communication control module 220. Therefore, while the base station 100 cannot distinguish between the first uplink communication signal forwarded by the repeater 200 and the second uplink communication signal directly received, the base station 100 can still communicate with each repeater 200 to send control signals to them. Similarly, the network management system 300 can communicate with the repeaters 200 based on the base station 100. Alternatively, the network management system 300 can communicate directly with the communication control module 220 of the repeater 200.

[0120] For example, the network management system 300 manages spectrum resource scheduling for the base station 100 and can schedule and allocate original frequency domain resources. As shown in Figure 13, in traditional frequency domain resource scheduling, no specific operating frequency domain is set for the repeater 200, resulting in a relatively large uplink operating frequency domain range for the repeater 200. However, after spectrum resource scheduling, a certain frequency domain range is allocated to the second terminal device UE2, while another portion of the frequency domain range is allocated to all repeaters 200 within the coverage area. At this point, the frequency domain ranges of all repeaters 200 are reduced compared to before the scheduling adjustment. The network management system 300 can send the frequency domain resource allocation information after scheduling to the base station 100. Simultaneously, the base station 100 or the network management system 300 can generate a control signal based on the scheduled frequency domain allocation, which includes frequency domain adjustment information. The base station 100 sends the control signal to the communication control module 220 of the repeater 200, causing the repeater 200 to perform the second communication method described above.

[0121] In the second example, 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 300. In this case, as shown in FIG14 , the base station 100 and the network management 300 can perform the following operations including steps S310 to S330:

[0122] S310 : The base station 100 sends parameter calculation information to the network management 300 .

[0123] In some possible implementations, the base station 100 may send parameter calculation information related to frequency domain, time domain, or uplink amplification gain calculation to the network management 300 .

[0124] Exemplarily, for frequency domain-related adjustment control, the parameter calculation information sent by the base station 100 to the network management 300 may include initial frequency domain resource configuration, common channel configuration, and workload information. The initial frequency domain resource configuration may include frequency domain resource scheduling configuration, such as configuration information for a bandwidth part (BWP). The common channel configuration may include long-term evolution (LTE) channel configuration information. The workload information may include the workload of the base station 100 per unit time.

[0125] Exemplarily, for time-domain-related adjustment control, the parameter calculation information sent by the base station 100 to the network management 300 may include workload information.

[0126] For example, for power-related configuration, the parameter calculation information sent by the base station 100 to the network management 300 may include uplink path loss indicator information, reference signal receiving power (RSRP) value, and interference noise value of the repeater 200.

[0127] S320 : The network management 300 determines the uplink hardware parameters of the repeater 200 based on the parameter calculation information.

[0128] In some examples, when the uplink hardware parameters include the uplink operating frequency domain of repeater 200, the parameter calculation information sent by base station 100 includes the initial frequency domain resource configuration, common channel configuration, and workload information. This information can be used to perform frequency domain configuration on channels such as the PUCCH, PRACH, and physical uplink shared channel (PUSCH) of base station 100, thereby determining the adjusted uplink operating frequency domain of repeater 200. For example, based on the initial frequency domain resource configuration and common channel configuration, network management system 300 can obtain the frequency domain resource locations of the cell's uplink PUCCH and PRACH and determine the frequency domain location of the uplink frequency selection amplifier for repeater 200, ensuring that the initial BWP or common channel information can be received between repeater 200 and base station 100. For example, network management system 300 can determine the frequency domain location of the PUSCH based on the workload information of base station 100. Based on the above operations, a new uplink operating frequency domain to which repeater 200 can be adjusted can be determined.

[0129] In some examples, when the uplink hardware parameters include the uplink operating time domain of the repeater 200, the network management 300 can determine the idle time and operating time distribution of the repeater 200 based on the workload information of the base station 100. This can thereby determine a new uplink operating time domain that the repeater 200 can be adjusted to.

[0130] In some examples, when the uplink hardware parameters include the uplink amplification gain of the repeater 200, the network management system 300 can, for example, determine the initial uplink amplification gain of the repeater 200 based on the uplink path loss indicator information between the repeater 200 and the base station 100. For example, the network management system 300 can determine the new uplink amplification gain of the repeater 200 in operation based on the RSRP value of the repeater 200 collected by the base station 100. For example, the full-power RSRP value of the repeater 200 at full power can be calculated based on the uplink RSRP value of the repeater 200 and the power headroom. The uplink target RSRP value of the repeater 200 can be determined based on the cell-level interference noise measured by the base station 100 and the minimum guaranteed signal-to-noise ratio (SNR) of the repeater 200 during normal operation. The adjustable uplink amplification gain value of the repeater 200 can be determined based on the difference between the full-power RSRP value and the uplink target RSRP value.

[0131] S330 . Send a control signal to the repeater 200 .

[0132] In some possible implementations, after calculating the uplink hardware parameters, the network management 300 generates a control signal and sends it to the communication control module 220 of the repeater 200 .

[0133] In some possible implementations, after calculating the uplink hardware parameters, the network management 300 sends a control signal to the repeater 200 through the base station 100 .

[0134] In some possible implementations, when the network management unit 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 provide feedback to the base station 100 via the parameter indication signal regarding the adjusted uplink operating frequency domain and / or uplink operating time domain of the repeater 200. The base station 100 may adjust frequency domain resource scheduling and / or time domain resource scheduling for the repeater 200 based on the parameter indication signal.

[0135] An embodiment of the present application further provides a communication device, comprising a processor and a memory. The processor invokes a computer program stored in the memory to implement the first communication method described in the above embodiment, or to execute the second communication method described in the above embodiment, or to execute the third communication method described in the above embodiment.

[0136] An embodiment of the present application also provides a computer-readable storage medium, which includes instructions; when the instructions are executed on a processor, the processor executes the first communication method described in the above embodiment, or executes the second communication method described in the above embodiment, or executes the third communication method described in the above embodiment.

[0137] The processor involved in the embodiments 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 processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD), or other integrated chips.

[0138] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0139] Those skilled in the art will appreciate that the modules and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0140] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and modules described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0141] In the several embodiments provided in this 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 merely a logical function division. In actual implementation, there may be other division methods, such as 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 mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0142] The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located on a single device or distributed across multiple devices. Some or all of the modules may be selected to achieve the purpose of this embodiment based on actual needs.

[0143] In addition, the functional modules in the various embodiments of the present application may be integrated into one device, or each module may exist physically separately, or two or more modules may be integrated into one device.

[0144] 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 loading and executing computer program instructions on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode to another website, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that contains one or more media that can be integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).

[0145] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection 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 sending the communication signal; the communication signal is an interactive signal between the base station and the first terminal device; receiving a control signal, wherein the control signal is used to instruct adjustment of an uplink hardware parameter of the radio frequency channel; The uplink hardware parameters of the radio frequency channel are adjusted according to the control signal.

2. The communication method according to claim 1, characterized in that: The radio frequency channel includes an adjustable bandpass filter; the adjustable bandpass filter is used to filter the communication signal; the control signal includes frequency domain adjustment information; and adjusting the uplink hardware parameters of the radio frequency channel according to the control signal includes: The operating frequency domain of the adjustable bandpass filter is adjusted according to the frequency domain adjustment information.

3. The communication method according to claim 1, characterized in that: The control signal includes working time slot information; and adjusting the uplink hardware parameters of the radio frequency channel according to the control signal includes: According to the working time slot information, the starting working time of the uplink communication function of the radio frequency channel is controlled.

4. The communication method according to any one of claims 1 to 3, characterized in that: The radio frequency channel also includes a power amplifier; the power amplifier is used to amplify the power of the communication signal; the control signal includes gain adjustment information; and adjusting the uplink hardware parameters of the radio frequency channel according to the control signal includes: The uplink amplification gain of the power amplifier is adjusted according to the gain adjustment information.

5. The communication method according to any one of claims 1 to 4, characterized in that: The repeater station 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, wherein the power signal is used to indicate an uplink power value of the radio frequency channel; The uplink communication function of the radio frequency channel is controlled to be turned on or off according to the power signal.

6. The communication method according to any one of claims 1 to 5, characterized in that: The method further comprises: The communication signal is processed based on the radio frequency channel to obtain the processed communication signal, wherein the processed communication signal has characteristic information, and the characteristic information is used to indicate the identification 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; The signal processing of the communication signal comprises: A signal blank interval is set within the duration of the pilot reference signal, and the signal blank 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; The signal processing of the communication signal comprises: Setting a signal blank interval within the duration of the channel state reference signal, wherein the signal blank interval is the characteristic information; A first uplink communication signal is received from the first terminal device, and the first uplink communication signal is sent to the base station, wherein 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.

9. The communication method according to claim 6, characterized in that: 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 the first terminal device to the base station based on the repeater; The signal processing of the communication signal comprises: The signal delay of the first uplink communication signal is increased based on the delay circuit, and the signal 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 station includes a radio frequency channel; the method includes: receiving a communication signal, where the communication signal is an interaction signal between the base station and the first terminal device; The communication signal is processed based on the radio frequency channel to obtain the processed communication signal. The communication signal has characteristic information, and the characteristic information is used to indicate the identification of the repeater; The processed communication signal is transmitted.

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 comprises: A signal blank interval is set within the duration of the pilot reference signal, and the signal blank interval is the characteristic information.

12. The communication method according to claim 10, 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; The signal processing of the communication signal comprises: Setting a signal blank interval within the duration of the channel state reference signal, wherein the signal blank interval is the characteristic information; A first uplink communication signal is received from the first terminal device, and the first uplink communication signal is sent to the base station, wherein 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.

13. The communication method according to claim 10, characterized in that: 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 the first terminal device to the base station based on the repeater; The signal processing of the communication signal comprises: The signal delay of the first uplink communication signal is increased based on the delay circuit, and the signal delay of the first uplink communication signal is the characteristic information.

14. A communication method, characterized in that: The communication method is applied to a base station; the method comprises: Receive an uplink communication signal, the uplink communication signal including 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, the first uplink communication signal carries characteristic information or terminal response information, the characteristic information is used to indicate an 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; The first terminal device and the second terminal device are distinguished from each other, and different repeaters are distinguished based on the feature information and / or the terminal response information.

15. A repeater, characterized in that: The repeater station includes a radio frequency channel and a communication control module; wherein: The radio frequency channel is used to: receive a communication signal; send the communication signal; the communication signal is an interactive signal between the base station and the first terminal device; The communication control module is used for: receiving a control signal, wherein the control signal is used to instruct adjustment of an uplink hardware parameter of the radio frequency channel; The uplink hardware parameters of the radio frequency channel are adjusted according to the control signal.

16. The repeater according to claim 15, characterized in that: The radio frequency channel includes an adjustable bandpass filter; the adjustable bandpass filter is used to filter the communication signal; the control signal includes frequency domain adjustment information; and adjusting the uplink hardware parameters of the radio frequency channel according to the control signal includes: The operating frequency domain of the adjustable bandpass filter is adjusted according to the frequency domain adjustment information.

17. The repeater according to claim 15, characterized in that: The control signal includes working time slot information; and adjusting the uplink hardware parameters of the radio frequency channel according to the control signal includes: According to the working time slot information, the starting working time of the uplink communication function of the radio frequency channel is controlled.

18. The repeater according to any one of claims 15 to 17, characterized in that: The radio frequency channel also includes a power amplifier; the power amplifier is used to amplify the power of the communication signal; the control signal includes gain adjustment information; and adjusting the uplink hardware parameters of the radio frequency channel according to the control signal includes: The uplink amplification gain of the power amplifier is adjusted according to the gain adjustment information.

19. The repeater according to any one of claims 15 to 18, characterized in that: The repeater station 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, wherein 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 uplink communication function of the radio frequency channel to be turned on or off according to the power signal.

20. The repeater according to any one of claims 15 to 19, characterized in that: The radio frequency channel is also used for: The communication signal is processed to obtain the processed communication signal, wherein the processed communication signal has characteristic information, and the characteristic information is used to indicate the identification of the repeater.

21. The repeater according to claim 20, 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 comprises: A signal blank interval is set within the duration of the pilot reference signal, and the signal blank interval is the characteristic information.

22. The repeater according to claim 20, characterized in that: The communication signal includes a downlink communication signal, which 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 comprises: Setting a signal blank interval within the duration of the channel state reference signal, wherein the signal blank interval is the characteristic information; A terminal response signal is received from the first terminal device, and the terminal response signal is sent 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, characterized in that: 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 the first terminal device to the base station based on the repeater; The signal processing of the communication signal comprises: The signal delay of the first uplink communication signal is increased based on the delay circuit, and the signal delay of the first uplink communication signal is the characteristic information.

24. A repeater, characterized in that: The repeater station includes a radio frequency channel; the radio frequency channel is used for: receiving a communication signal, where the communication signal is an interaction signal between the base station and the first terminal device; Performing signal processing on the communication signal to obtain the processed communication signal, wherein the processed communication signal has characteristic information, and the characteristic information is used to indicate the identification of the repeater; The processed communication signal is transmitted.

25. The repeater according to claim 24, 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 comprises: A signal blank interval is set within the duration of the pilot reference signal, and the signal blank interval is the characteristic information.

26. The repeater according to claim 24, 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; The signal processing of the communication signal comprises: Setting a signal blank interval within the duration of the channel state reference signal, wherein the signal blank interval is the characteristic information; A first uplink communication signal is received from the first terminal device, and the first uplink communication signal is sent to the base station, wherein 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, characterized in that: 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 the first terminal device to the base station based on the repeater; The signal processing of the communication signal comprises: The signal delay of the first uplink communication signal is increased based on the delay circuit, and the signal delay of the first uplink communication signal is the characteristic information.

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

29. A communication system, characterized in that: It includes a base station and a repeater; the base station communicates with the first terminal device based on the repeater; the repeater is the repeater as described in any one of claims 15-23, or the repeater as described in any one of claims 24-27.

30. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes instructions; when the instructions are executed on a processor, the processor executes the communication method as described in any one of claims 1-9, or executes the communication method as described in any one of claims 10-13, or executes the communication method as described in claim 14.

Images