Method for adjusting uplink sensitivity, base station distribution system

Abstract

The application discloses a method for adjusting uplink sensitivity and a base station distribution system. The method comprises the following steps: obtaining communication information of an interactive object in master-slave communication signals exchanged between a master device and a slave device, wherein the master device comprises an integrated small base station, the slave device comprises a radio frequency distribution system, or the master device comprises a radio frequency distribution system, and the slave device comprises an integrated small base station; the communication information at least comprises initial uplink gain and noise coefficient; the interactive object adjusts the initial uplink gain for multiple times until the difference between a first target noise value of a target system and a second target noise value of the target system is less than a preset threshold value, and the adjustment of the initial uplink gain is stopped; the target uplink sensitivity is determined according to the first target noise value, and the uplink sensitivity of the integrated small base station is adjusted to the target uplink sensitivity.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication technology, in particular to a method for adjusting uplink sensitivity and a base station distribution system. BACKGROUND

[0002] For the second generation mobile communication technology (2G), the third generation mobile communication technology (3G) and the fourth generation mobile communication technology (4G) with low working frequency, indoor coverage mainly adopts a passive room distribution system. The passive room distribution system takes a high power remote radio unit (RRU) as a signal source, and transmits radio frequency signals through connection with a passive feeder, a power division coupler and an antenna. With the development of the fifth generation mobile communication technology (5G), the frequency band used for wireless communication is expanded to high frequency. Since the loss of high frequency signals in the passive room distribution system is large, the average power consumption of each remote coverage is high. Therefore, the passive room distribution system cannot support high frequency band communication. In the related art, a radio frequency active room distribution system is used to solve the problem of 5G indoor coverage. The radio frequency active distribution system includes two types of network elements, i.e., a near-end machine and a remote-end machine. The remote-end machine connects multiple active antennas together (active antenna cascading) to enhance the signal receiving and transmitting capability. Therefore, noise superposition problem will occur during communication, which will affect the receiving sensitivity of the signal source and cause the edge coverage effect of the radio frequency active distribution system to deteriorate.

[0003] At present, there is no effective solution to the above problems. SUMMARY

[0004] Embodiments of the present application provide a method for adjusting uplink sensitivity and a base station distribution system to at least solve the technical problem of reduced uplink sensitivity caused by increased uplink noise due to the active antenna cascading mode of the radio frequency active distribution system.

[0005] According to an aspect of the embodiments of the present application, a method for adjusting uplink sensitivity is provided, comprising: obtaining communication information of an interactive object in master-slave communication signals exchanged between a master device and a slave device, wherein the master device comprises an integrated small base station, and the slave device comprises a radio frequency distribution system; or the master device comprises a radio frequency distribution system, and the slave device comprises an integrated small base station; the communication information at least comprises an initial uplink gain and a noise coefficient; the interactive object adjusts the initial uplink gain for multiple times until a difference between a first target noise value of a target system and a second target noise value of the target system is less than a preset threshold value, and stops adjusting the initial uplink gain, wherein the interactive object comprises the master device and the slave device, the target system is a system containing the master device and the slave device, the preset threshold value is a preset minimum value of a noise variation, the first target noise value is determined according to the noise coefficient and the initial uplink gain after the current adjustment, the second target noise value is determined according to the noise coefficient and the initial uplink gain after the last adjustment in the previous adjustment, and different interactive objects correspond to different adjustment modes; determining a target uplink sensitivity according to the first target noise value, and adjusting the uplink sensitivity of the integrated small base station to the target uplink sensitivity.

[0006] Optionally, in the case that the interactive object is the integrated small base station, the interactive object adjusts the initial uplink gain for multiple times, comprising: reducing the initial uplink gain by a first preset value each time.

[0007] Optionally, in the case that the interactive object is the radio frequency distribution system, the interactive object adjusts the initial uplink gain for multiple times, comprising: increasing the initial uplink gain by a second preset value each time.

[0008] Optionally, the interactive object adjusts the initial uplink gain for multiple times, comprising: in the case that the first master-slave communication signal received by the master device contains a control signal, and the second master-slave communication signal received by the slave device does not contain the control signal, the master device adjusts the uplink gain of the master device, wherein the control signal is a signal for indicating adjustment of the noise; in the case that the first master-slave communication signal received by the master device does not contain the control signal, and the second master-slave communication signal received by the slave device contains the control signal, the slave device adjusts the uplink gain of the slave device; in the case that the first master-slave communication signal received by the master device contains the control signal, and the second master-slave communication signal received by the slave device contains the control signal, the master device adjusts the uplink gain of the master device, and simultaneously, the slave device adjusts the uplink gain of the slave device.

[0009] Optionally, the initial uplink gain comprises a first uplink gain of the radio frequency distribution system; the noise coefficient comprises a first noise coefficient of the integrated small base station, a second noise coefficient of the radio frequency distribution system; the communication information further comprises a third noise coefficient and a second uplink gain of a cascade cable, wherein the cascade cable is in the radio frequency distribution system; the first target noise value is determined by the following method: at each adjustment, a first noise value of the integrated small base station is determined according to the first noise coefficient, the first uplink gain and the second uplink gain, a second noise value of the radio frequency distribution system is determined according to the second noise coefficient, and a third noise value of the cascade cable is determined according to the third noise coefficient and the first uplink gain; a new noise value after adjustment is determined according to the first noise value, the second noise value and the third noise value; and the first target noise value is determined according to the initial noise value and the new noise value.

[0010] Optionally, the first target noise value is determined according to the new noise value, comprising: obtaining a third target noise value, wherein the adjustment number corresponding to the new noise value is N, and the adjustment number corresponding to the third target noise value is N1; determining a target difference value of the new noise value and the third target noise value, and comparing the target difference value with a preset threshold to obtain a comparison result; in a case where the comparison result indicates that the target difference value is less than the preset threshold, the new noise value is determined as the first target noise value; in a case where the comparison result indicates that the target difference value is greater than or equal to the preset threshold, the interactive object continues to determine the first target noise value by adjusting the uplink gain of itself.

[0011] Optionally, the new noise value after adjustment is determined according to the first noise value, the second noise value and the third noise value, comprising: the new noise value is determined according to the following formula: NF = 10Log(F), wherein F is an adjusted noise coefficient, NF is the new noise value, F1 is the second noise coefficient, F2 is the third noise coefficient, F3 is the first noise coefficient, is the first noise value, 10 0.1*F1 is the second noise value, is the third noise value.

[0012] Optionally, the target uplink sensitivity is determined according to the first target noise value, comprising: obtaining a bandwidth and a signal-to-noise ratio of a communication signal of the integrated small base station; and determining the target uplink sensitivity according to the first target noise value, the bandwidth and the signal-to-noise ratio.

[0013] According to another aspect of the embodiments of the present application, a base station distribution system is also provided, comprising: an integrated small base station and a radio frequency distribution system, wherein the integrated small base station and the radio frequency distribution system interact at least through master-slave communication signals, and in the case of interaction through master-slave communication signals, the integrated small base station is the master device and the radio frequency distribution system is the slave device, or the integrated small base station is the slave device and the radio frequency distribution system is the master device; the integrated small base station comprises: a first signal processing unit configured to obtain communication information of the radio frequency distribution system through the master-slave communication signals, wherein the communication information at least includes: an initial uplink gain and a noise coefficient; the integrated small base station further comprises: an adjustable attenuator configured to adjust the initial uplink gain of the integrated small base station multiple times until the difference between a first target noise value of the base station distribution system and a second target noise value of the base station distribution system is less than a preset threshold, and the adjustment of the initial uplink gain is stopped, wherein the preset threshold is a preset minimum value of a noise variation, the first target noise value is determined according to the noise coefficient and the initial uplink gain after this adjustment, and the second target noise value is determined according to the noise coefficient and the initial uplink gain after the last adjustment in the previous adjustment; the radio frequency distribution system comprises: a second signal processing unit configured to obtain communication information of the integrated small base station through the master-slave communication signals, wherein the communication information at least includes: an initial uplink gain and a noise coefficient; the radio frequency distribution system further comprises: a digital adjustable attenuation module configured to adjust the initial uplink gain of the radio frequency distribution system multiple times until the difference between the first target noise value of the base station distribution system and the second target noise value of the base station distribution system is less than the preset threshold, and the adjustment of the initial uplink gain is stopped; and the base station distribution system is further configured to determine a target uplink sensitivity according to the target noise value, and adjust the uplink sensitivity of the integrated small base station to the target uplink sensitivity.

[0014] Optionally, the integrated small base station and the radio frequency distribution system each comprise: a target interface, wherein the target interface is an interface supporting transmission of the master-slave communication signals.

[0015] In the embodiment of the present application, the communication information of the interactive object is obtained in the master-slave communication signal exchanged between the master device and the slave device, wherein the master device comprises an integrated small base station, and the slave device comprises a radio frequency distribution system; or the master device comprises a radio frequency distribution system, and the slave device comprises an integrated small base station; the communication information at least comprises an initial uplink gain and a noise coefficient; the interactive object adjusts the initial uplink gain for multiple times until the difference between the first target noise value of the target system and the second target noise value of the target system is less than a preset threshold, and the adjustment of the initial uplink gain is stopped, wherein the interactive object comprises the master device and the slave device, the target system is a system containing the master device and the slave device at the same time, the preset threshold is the minimum value of the preset noise variation, the first target noise value is determined according to the noise coefficient and the initial uplink gain adjusted this time, the second target noise value is determined according to the noise coefficient and the initial uplink gain adjusted last time, and the adjustment mode corresponding to different interactive objects is different; the target uplink sensitivity is determined according to the first target noise value, and the uplink sensitivity of the integrated small base station is adjusted to the target uplink sensitivity, so as to realize the deep integration of the integrated small base station and the radio frequency distribution system in the mode of adjusting the uplink sensitivity of the integrated small base station to the target uplink sensitivity, so that the integrated small base station and the radio frequency distribution system obtain the uplink gain and the noise coefficient of each other through the master-slave communication, and the noise generated in the communication process is further reduced through the adjustment of the uplink gain, so as to optimize the uplink sensitivity of the integrated small base station, so as to realize the deep integration between the signal source (base station / integrated small base station) and the active distribution system, so as to realize the technical effect of optimizing the uplink sensitivity of the active distribution system, and further solve the technical problem of the reduction of the uplink sensitivity caused by the increase of the uplink noise due to the active antenna cascade mode of the radio frequency active distribution system. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the present application, constitute a part of the present application and illustrate the illustrative embodiments of the present application and their description serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0017] Figure 1 It is a structure diagram of a small base station radio frequency distribution system according to the related art;

[0018] Figure 2 It is a structure diagram of a communication system 100 according to the embodiment of the present application;

[0019] Figure 3 It is a step flow chart of a method for adjusting the uplink sensitivity according to the embodiment of the present application;

[0020] Figure 4 It is a flow chart of adjusting the initial uplink gain according to the embodiment of the present application;

[0021] Figure 5This is a schematic diagram of a base station distribution system according to an embodiment of this application. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0024] To better understand the embodiments of this application, the technical terms involved in the embodiments of this application are explained below:

[0025] Integrated small base station: a small, low-power base station.

[0026] Master-slave communication: a communication mode in which the master device initiates a communication request, and the slave device executes the corresponding operation according to the master device's instructions.

[0027] Figure 1 This is a structural diagram of a small base station radio frequency distribution system in related technologies, such as... Figure 1 As shown in the related technologies, the small cell radio frequency distribution system mainly consists of an integrated small cell base station and a radio frequency distribution system. The radio frequency distribution system includes two types of network elements: a radio frequency near-end unit and a radio frequency far-end unit. These network elements are connected via radio frequency coaxial cables, network cables, optical fibers, or wireless connections. Since active antennas are cascaded in the radio frequency distribution system, problems arise such as increased uplink noise, deteriorated uplink sensitivity, reduced signal coverage of the small cell base station radio frequency distribution system, and decreased data transmission rates in the edge areas of the signal coverage. To address this problem, the embodiments of this application provide relevant solutions, which are detailed below.

[0028] According to the embodiments of the present application, a method for adjusting uplink sensitivity is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from here.

[0029] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

[0030] For example, the communication system 100 to which the embodiments of the present application are applied is as follows. Figure 2As shown. The communication system 100 can include a network device 110, which can be a device communicating with a terminal device 120 (or called a communication terminal, a terminal). The network device 110 can provide communication coverage for a specific geographic area, and can communicate with terminal devices located within the coverage area. Optionally, the network device 110 can be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved base station (eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

[0031] The communication system 100 further includes at least one terminal device 120 located within the coverage area of the network device 110. As used herein, a "terminal device" includes, but is not limited to, an apparatus configured to receive / transmit communication signals via a wired line connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection; and / or another data connection / network; and / or a wireless interface, such as for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and / or another terminal device; and / or an Internet of Things (IoT) device. A terminal device configured to communicate over a wireless interface can be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular phones; Personal Communications System (PCS) terminals that can combine a cellular radiotelephone with data processing, facsimile, and data communications capabilities; PDA's that can include a wireless radio telephone, a pager, Internet / Intranet access, Web browser, an organizer, a calendar, and / or a global positioning system (GPS) receiver; and conventional laptop and / or palmtop receivers or other electronic devices that include a radio telephone transceiver. A terminal device can refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, mobile, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. An access terminal can be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handset with wireless communication capabilities, a computing device, or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved PLMN, etc.

[0032] Optionally, the terminal devices 120 can communicate with each other through Device to Device (D2D) communication.

[0033] Optionally, the 5G system or 5G network can also be referred to as a new radio (NR) system or NR network.

[0034] The embodiment of the present application provides a method for adjusting uplink sensitivity, which can run in the above running environment, Figure 3 is a step flow chart of the method for adjusting uplink sensitivity provided by the embodiment of the present application, as Figure 3 shown, the method comprises the following steps:

[0035] Step S302, obtaining communication information of an interactive object in master-slave communication signals exchanged between a master device and a slave device, wherein the master device comprises an integrated small base station, and the slave device comprises a radio frequency distribution system; or the master device comprises a radio frequency distribution system, and the slave device comprises an integrated small base station; the communication information at least comprises an initial uplink gain and a noise coefficient.

[0036] Any base station and radio frequency distribution system capable of master-slave communication can apply the method provided by the embodiment of the present application, for example, when the integrated small base station and the radio frequency distribution system supporting master-slave communication execute the method provided by the embodiment of the present application, the integrated small base station and the radio frequency distribution system are interactive objects, and the integrated small base station and the radio frequency distribution system obtain the initial uplink gain and the noise coefficient and other communication information of each other through the master-slave communication signals, that is, the integrated small base station can obtain the initial uplink gain and the noise coefficient of the radio frequency distribution system, and the radio frequency distribution system can also obtain the initial uplink gain and the noise coefficient of the integrated small base station. Wherein, in the master-slave communication mode, when the integrated small base station acts as the master device, the radio frequency distribution system acts as the slave device; when the radio frequency distribution system acts as the master device, the integrated small base station acts as the slave device.

[0037] Step S304, the interactive object adjusts the initial uplink gain for multiple times until the difference between the first target noise value of the target system and the second target noise value of the target system is less than a preset threshold, and the adjustment of the initial uplink gain is stopped, wherein the interactive object comprises a master device and a slave device, the target system is a system containing the master device and the slave device at the same time, the preset threshold is a minimum value of a preset noise change amount, the first target noise value is determined according to the noise coefficient and the initial uplink gain adjusted this time, the second target noise value is determined according to the noise coefficient and the initial uplink gain adjusted last time in this adjustment, and different interactive objects correspond to different adjustment modes.

[0038] In this embodiment, the interaction objects are an integrated small base station and a radio frequency distribution system. Each of the integrated small base station and the radio frequency distribution system is aware of its own initial uplink gain and noise figure. Therefore, after obtaining the other's communication information through master-slave communication signals in step S202, the integrated small base station and the radio frequency distribution system can combine the obtained communication information with their own communication information to determine the noise of the base station distribution system (a system where the integrated small base station and the radio frequency distribution system coexist). In step S304, the master device and the slave device adjust their own initial uplink gain to reduce initial noise, thereby improving the uplink sensitivity of the signal transmitted by the base station distribution system. Figure 4 This is a flowchart for adjusting the initial uplink gain, such as... Figure 4 As shown, after the master device and / or slave device obtain the communication information (initial uplink gain and noise figure) from each other, they first determine a noise value (i.e., the second target noise value, Ftotal). During the adjustment of their respective initial uplink gains, the noise of the base station distribution system is recalculated after each adjustment to obtain the noise value after adjusting the initial uplink gain (i.e., the first target noise value, Fcalc). By comparing the difference between the noise value obtained after the current uplink gain adjustment (i.e., the first target noise value) and the noise value obtained after the previous uplink gain adjustment (i.e., the second target noise value) with a preset threshold, it is determined whether further adjustment is needed. Figure 4 As shown, when the difference between the noise value after adjusting the initial uplink gain (i.e., the first target noise value) and the noise value obtained after the last adjustment of the uplink gain (i.e., the second target noise value) is less than a preset threshold, the uplink gain is no longer adjusted. This is because the preset threshold is a preset minimum noise change value. When the noise difference generated after adjusting the gain is less than this value, it indicates that adjusting the (initial) uplink gain has little effect on noise reduction and can no longer effectively reduce noise. The way the integrated small base station adjusts its initial uplink gain is different from the way the radio frequency distribution system adjusts its initial uplink gain. In this embodiment, the current adjustment is the gain adjustment performed at the current moment. If no adjustment is performed at the current moment, it is the moment when the gain adjustment was performed most recently.

[0039] Optionally, when the interaction object is an integrated small base station, the interaction object adjusts its initial uplink gain multiple times, including reducing the initial uplink gain by a first preset value each time it is adjusted.

[0040] As mentioned in the above embodiment, the integrated small base station adjusts its initial uplink gain in a different way from the radio frequency distribution system, specifically, the integrated small base station adjusts its initial uplink gain in a decreasing way, in this embodiment, the integrated small base station adjusts its initial uplink gain by a preset step value (i.e. the first preset value), and from the first adjustment, the initial uplink gain is decreased by the preset step value (i.e. the first preset value) in each adjustment.

[0041] According to an optional embodiment of the present application, in the case that the interactive object is the radio frequency distribution system, the interactive object adjusts its initial uplink gain for multiple times, including: in each adjustment, the initial uplink gain is increased by the second preset value.

[0042] In this embodiment, the radio frequency distribution system adjusts its initial uplink gain in an increasing way, in this embodiment, the radio frequency distribution system adjusts its initial uplink gain by a preset step value (i.e. the second preset value), and from the first adjustment, the initial uplink gain is increased by the preset step value (i.e. the second preset value) in each adjustment.

[0043] It should be noted that the amplitude of the gain adjustment of the integrated small base station (i.e. the first preset value) and the amplitude of the gain adjustment of the radio frequency distribution system (i.e. the second preset value) can be the same or different.

[0044] According to another optional embodiment of the present application, the interactive object adjusts its initial uplink gain for multiple times, including: in the case that the first master-slave communication signal received by the master device contains the control signal and the second master-slave communication signal received by the slave device does not contain the control signal, the master device adjusts the uplink gain of the master device, wherein the control signal is a signal for indicating adjustment of the noise; in the case that the first master-slave communication signal received by the master device does not contain the control signal and the second master-slave communication signal received by the slave device contains the control signal, the slave device adjusts the uplink gain of the slave device; in the case that the first master-slave communication signal received by the master device contains the control signal and the second master-slave communication signal received by the slave device contains the control signal, the master device adjusts the uplink gain of the master device, and at the same time, the slave device adjusts the uplink gain of the slave device.

[0045] In the method provided in the embodiments of the present application, the master device and the slave device acquire the uplink gain and the noise coefficient and the like from each other through master-slave communication interaction, and meanwhile, the noise is adaptively adjusted through the software control word (i.e., the control signal) of the master-slave communication. Specifically, in the embodiments, the control signal for indicating the adjustment of the noise is transmitted in the master-slave communication signal. In the master-slave communication, the master device is usually responsible for initiating the communication request and synchronizing the data exchange, and the slave device responds to the request of the master device and provides the required information or performs the operation. In the embodiments, the master device can send the control signal for indicating the adjustment of the noise, the data acquisition instruction, and the initial uplink gain and the noise coefficient of the master device to the slave device through the master-slave communication signal, wherein the data acquisition instruction is used to acquire the uplink gain and the noise coefficient of the slave device. After receiving the master-slave communication signal sent by the master device, the slave device can return the control signal for indicating the adjustment of the noise to the master device through the master-slave communication signal in addition to returning the uplink gain and the noise coefficient of the slave device to the master device. Therefore, in the embodiments, there are the following multiple cases for the interactive object to adjust the initial uplink gain of the interactive object. For example, when the master-slave communication signal (i.e., the second master-slave communication signal) sent by the master device to the slave device does not contain the above-mentioned control signal, and the master-slave communication signal (i.e., the first master-slave communication signal) returned by the slave device to the master device contains the above-mentioned control signal, only the slave device will adjust the initial uplink gain of the slave device. When the master-slave communication signal (i.e., the second master-slave communication signal) sent by the master device to the slave device contains the above-mentioned control signal, and the master-slave communication signal (i.e., the first master-slave communication signal) returned by the slave device to the master device does not contain the above-mentioned control signal, only the master device will adjust the initial uplink gain of the master device. When the master-slave communication signal (i.e., the second master-slave communication signal) sent by the master device to the slave device contains the above-mentioned control signal, and the master-slave communication signal (i.e., the first master-slave communication signal) returned by the slave device to the master device also contains the above-mentioned control signal, the master device will adjust the initial uplink gain of the master device, and at the same time, the slave device will also adjust the initial uplink gain of the slave device.

[0046] According to some optional embodiments of the present application, the initial uplink gain comprises a first uplink gain of the radio frequency distribution system; the noise coefficient comprises a first noise coefficient of the integrated small base station and a second noise coefficient of the radio frequency distribution system; the communication information further comprises a third noise coefficient and a second uplink gain of the cascade cable, wherein the cascade cable is in the radio frequency distribution system; the first target noise value is determined by the following method: at each adjustment, a first noise value of the integrated small base station is determined according to the first noise coefficient, the first uplink gain and the second uplink gain, a second noise value of the radio frequency distribution system is determined according to the second noise coefficient, and a third noise value of the cascade cable is determined according to the third noise coefficient and the first uplink gain; a new noise value after adjustment is determined according to the first noise value, the second noise value and the third noise value; and the first target noise value is determined according to the new noise value.

[0047] As mentioned in the above embodiment, the master device and the slave device obtain the uplink gain and the noise coefficient of each other through the master-slave communication signal interaction, and the integrated small base station is the master device and the radio frequency distribution system is the slave device, or the integrated small base station is the slave device and the radio frequency distribution system is the master device, that is, the integrated small base station and the radio frequency distribution system can both be the master device and the slave device, and in the embodiment, the initial uplink gain in the communication information should include the initial uplink gain of the radio frequency distribution system (i.e., the first uplink gain) and the initial uplink gain of the integrated small base station, and the noise coefficient in the communication information should include the noise coefficient of the integrated small base station (i.e., the first noise coefficient) and the noise coefficient of the radio frequency distribution system (i.e., the second noise coefficient). In addition, since the radio frequency distribution system includes a remote machine, and the active antenna is cascaded in the remote machine, the communication information can further include the noise coefficient of the cascaded cable (i.e., the third noise coefficient) and the uplink gain of the cascaded cable (i.e., the second uplink gain). After adjusting the initial uplink gain each time, the noise value of the base station distribution system after adjusting the gain (i.e., the first target noise value) is determined according to the above information, specifically, the noise value of the integrated small base station after adjusting the gain (i.e., the first noise value) is determined according to the noise coefficient of the integrated small base station (i.e., the first noise coefficient), the initial uplink gain of the radio frequency distribution system (i.e., the first uplink gain), and the uplink gain of the cascaded cable (i.e., the second uplink gain), the noise value of the radio frequency distribution system after adjusting the gain (i.e., the second noise value) is determined according to the noise coefficient of the radio frequency distribution system (i.e., the second noise coefficient), and the noise coefficient of the cascaded cable after adjusting the gain (i.e., the third noise value) is determined according to the noise coefficient of the cascaded cable (i.e., the third noise coefficient) and the initial uplink gain of the radio frequency distribution system (i.e., the first uplink gain); then the noise value of the base station distribution system after adjusting the gain each time (i.e., the new noise value) is determined according to the first noise value, the second noise value, and the third noise value; further, the final adjustment result (i.e., the first target noise value) is determined according to the result of the base station distribution system each time (i.e., the new noise value) and the initial noise value of the base station distribution system.

[0048] Optionally, determining the first target noise value according to the new noise value includes: obtaining a third target noise value, wherein the adjustment number corresponding to the third target noise value is N-1 in the case that the adjustment number corresponding to the new noise value is N; determining a target difference value of the new noise value and the third target noise value, and comparing the target difference value with a preset threshold to obtain a comparison result; in the case that the comparison result indicates that the target difference value is less than the preset threshold, determining the new noise value as the first target noise value; in the case that the comparison result indicates that the target difference value is greater than or equal to the preset threshold, the interactive object continues to determine the first target noise value by adjusting the uplink gain of itself.

[0049] In the embodiment, when the noise value of the base station distribution system is the final adjustment result (i.e. the first target noise value), the uplink sensitivity of the integrated small base station reaches the optimal value in the adjustable range, which is the optimal uplink sensitivity that can be achieved by adjusting the gain. At this time, if the gain continues to be adjusted, the noise value can only be slightly changed. Therefore, in the embodiment, whether to stop adjusting the gain is determined by comparing the noise change amount with the preset noise minimum change amount (i.e. the preset threshold). Specifically, when the noise change amount is less than the preset threshold, the integrated small base station and the radio frequency distribution system stop adjusting the initial uplink gain of the integrated small base station, and the noise value obtained after the last adjustment of the uplink gain is determined as the final adjustment result (i.e. the first target noise value). When the noise change amount is greater than or equal to the preset threshold, the integrated small base station and / or the radio frequency distribution system continues to adjust the uplink gain of the integrated small base station. The noise change amount is the difference between the new noise value of the base station distribution system after each adjustment of the uplink gain and the noise value of the base station distribution system after the last adjustment of the uplink gain (i.e. the third target noise value). For example, when the uplink gain is adjusted for the fourth (N) time, the noise value of the base station distribution system after the fourth adjustment of the uplink gain is the new noise value, and the noise value of the base station distribution system after the third (N-1) adjustment of the uplink gain is the third target noise value.

[0050] According to an optional embodiment of the present application, the new noise value after adjustment is determined according to the first noise value, the second noise value and the third noise value, including: determining the new noise value according to the following formula: NF = 10Log(F), wherein F is the adjusted noise coefficient, NF is the new noise value, F1 is the second noise coefficient, F2 is the third noise coefficient, and F3 is the first noise coefficient, is the first noise value, 10 0.1*F1 is the second noise value, is the third noise value.

[0051] In step S306, the target uplink sensitivity is determined according to the first target noise value, and the uplink sensitivity of the integrated small base station is adjusted to the target uplink sensitivity.

[0052] The method provided by the embodiment of the present application directly adjusts the gain of the base station distribution system to achieve the purpose of adjusting the noise of the base station distribution system, and indirectly adjusts the uplink sensitivity of the base station, because there is a mathematical relationship between the uplink sensitivity and the noise. After the adjustment of the gain in step S304 is completed and the final noise value (i.e. the first target noise value) of the base station distribution system is determined, a (target) uplink sensitivity can be determined according to the first target noise value in step S306. Adjusting the noise of the base station distribution system to the first target noise value is equivalent to adjusting the uplink sensitivity of the base station distribution system to the target uplink sensitivity.

[0053] Optionally, determining the target uplink sensitivity according to the first target noise value comprises: obtaining a bandwidth and a signal-to-noise ratio of a communication signal of the integrated small base station; and determining the target uplink sensitivity according to the first target noise value, the bandwidth and the signal-to-noise ratio.

[0054] In the embodiment, the target sensitivity is determined according to a formula: target sensitivity = 10*log10(BW) + NF + S / N, wherein BW represents the bandwidth of the communication signal of the integrated small base station, NF represents the first target noise value, and S / N represents the signal-to-noise ratio.

[0055] Through the above steps, the deep integration of the integrated small base station and the radio frequency distribution system can be achieved: the master-slave communication between the integrated small base station and the radio frequency distribution system is performed, the uplink gain and various parameters are interchanged, the uplink gain distribution at the time when the uplink sensitivity between the radio frequency distribution system and the integrated base station is optimal is determined based on the information obtained through the master-slave communication, and the downlink configuration is completed, so as to optimize the uplink sensitivity.

[0056] Figure 5 is a schematic diagram of a base station distribution system provided by an embodiment of the present application, as shown in Figure 5As shown, the base station distribution system comprises: an integrated small base station 50 and a radio frequency distribution system 52, wherein the integrated small base station 50 and the radio frequency distribution system 52 interact at least through master-slave communication signals, and in the case that the integrated small base station 50 and the radio frequency distribution system 52 interact through master-slave communication signals, the integrated small base station 50 is the master device and the radio frequency distribution system 52 is the slave device; or the integrated small base station 50 is the slave device and the radio frequency distribution system 52 is the master device; the integrated small base station 50 comprises: a first signal processing unit 502 configured to acquire communication information of the radio frequency distribution system 52 through master-slave communication signals, wherein the communication information at least comprises: an initial uplink gain and a noise coefficient; the integrated small base station 50 further comprises: an adjustable attenuator 504 configured to adjust the initial uplink gain of the integrated small base station 50 multiple times until a difference between a first target noise value of the base station distribution system and a second target noise value of the base station distribution system is less than a preset threshold value, and stop adjusting the initial uplink gain, wherein the preset threshold value is a minimum value of a preset noise variation, the first target noise value is determined according to the noise coefficient and the initial uplink gain adjusted this time, and the second target noise value is determined according to the noise coefficient and the initial uplink gain adjusted last time; the radio frequency distribution system 52 comprises: a second signal processing unit 520 configured to acquire communication information of the integrated small base station 50 through master-slave communication signals, wherein the communication information at least comprises: an initial uplink gain and a noise coefficient; the radio frequency distribution system 52 further comprises: a digital adjustable attenuation module 522 configured to adjust the initial uplink gain of the radio frequency distribution system 52 multiple times until a difference between a first target noise value of the base station distribution system and a second target noise value of the base station distribution system is less than a preset threshold value, and stop adjusting the initial uplink gain; and the base station distribution system is further configured to determine a target uplink sensitivity according to the target noise value, and adjust the uplink sensitivity of the integrated small base station 50 to the target uplink sensitivity.

[0057] In this embodiment, in addition to master-slave communication, the integrated small base station 50 and the radio frequency distribution system 52 can also perform conventional mobile communication. Figure 5 As shown, the integrated small base station 50 further comprises a combining module 506, and the radio frequency distribution system 52 further comprises: a combining module 524, and the combining module 506 and the combining module 524 are configured to support mobile communication signal transmission between the integrated small base station 50 and the radio frequency distribution system 52. Figure 5As shown, the integrated small base station 50 further comprises a baseband unit 508, a radio frequency transceiver 5010, a downlink amplification module 5012 and an uplink amplification module 5014, wherein the baseband unit 508 is a signal source of the base station, the radio frequency transceiver 5010 is internally provided with an adjustable attenuator 504, which is used to adjust the gain of the integrated small base station together with the downlink amplification module 5012 and the uplink amplification module 5014; the radio frequency distribution system 52 further comprises a downlink amplification module 526, an uplink amplification module 528 and a combining module 5210, which are used to adjust the gain of the signal received by the radio frequency distribution system 52 together with the digital adjustable attenuator 522.

[0058] Optionally, the integrated small base station and the radio frequency distribution system both comprise a target interface, wherein the target interface is an interface supporting master-slave communication signal transmission.

[0059] In the embodiment, the integrated small base station 50 further comprises a hardware interface 5014 (i.e., a target interface), and the radio frequency distribution system 52 further comprises a hardware interface 5212 (i.e., a target interface), wherein the hardware interface 5014 and the hardware interface 5212 are used to support the master-slave communication between the integrated small base station 50 and the radio frequency distribution system 52; in the embodiment, the hardware interface 5014 and the hardware interface 5212 can be an Ethernet hardware interface, a hardware interface supporting a Recommended Standard 485 (RS485) protocol, an interface supporting a Universal Asynchronous Receiver / Transmitter (UART) protocol, and in addition, in the embodiment, the integrated small base station 50 and the radio frequency distribution system 52 can also be connected through a radio frequency modulated signal via a radio frequency coaxial cable to perform the master-slave communication.

[0060] It should be noted that, Figure 5 The preferred implementation of the embodiment shown can be seen from Figure 3 The related description of the embodiment shown will not be repeated here.

[0061] The serial numbers of the above embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0062] In the above embodiments of the present application, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0063] In several embodiments provided in the present application, it should be understood that the disclosed technology can be implemented by other means. Among them, the above-mentioned device embodiments are only schematic, for example, the division of the units can be a logical function division, and actual implementation can have another division mode, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed each other can be through some interface, indirect coupling or communication connection between units or modules, which can be electrical or other forms.

[0064] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or they can be distributed to multiple units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0065] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0066] The integrated unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the part that contributes to the related art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a plurality of instructions for causing a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and various program codes that can be stored in the medium.

[0067] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. A method for adjusting uplink sensitivity, the method comprising: The application relates to a method for acquiring communication information of an interactive object in master-slave communication signals exchanged between a master device and a slave device, wherein the master device comprises an integrated small base station, and the slave device comprises a radio frequency distribution system; or the master device comprises a radio frequency distribution system, and the slave device comprises an integrated small base station; the communication information at least comprises initial uplink gain and noise coefficient. The interactive object adjusts its initial uplink gain for multiple times until the difference between a first target noise value of a target system and a second target noise value of the target system is less than a preset threshold value, and the adjustment of the initial uplink gain is stopped, wherein the interactive object comprises a master device and a slave device, the target system is a system containing the master device and the slave device, the preset threshold value is a preset minimum value of noise variation, the first target noise value is determined according to the noise coefficient and the initial uplink gain after this time adjustment, and the second target noise value is determined according to the noise coefficient and the initial uplink gain after the last time adjustment of the last time adjustment, and different adjustment modes are adopted for different interactive objects. The interactive object adjusts its initial uplink gain for multiple times, which comprises the following steps: when the first master-slave communication signal received by the master device contains a control signal and the second master-slave communication signal received by the slave device does not contain the control signal, the master device adjusts the uplink gain of the master device, wherein the control signal is a signal for indicating noise adjustment; when the first master-slave communication signal received by the master device does not contain the control signal and the second master-slave communication signal received by the slave device contains the control signal, the slave device adjusts the uplink gain of the slave device; when the first master-slave communication signal received by the master device contains the control signal and the second master-slave communication signal received by the slave device contains the control signal, the master device adjusts the uplink gain of the master device, and simultaneously, the slave device adjusts the uplink gain of the slave device; wherein the integrated small base station adjusts the initial uplink gain in a decreasing mode, the radio frequency distribution system adjusts the initial uplink gain in an increasing mode, and the noise of the target system is recalculated every time the initial uplink gain is adjusted. The target uplink sensitivity is determined according to the first target noise value, and the uplink sensitivity of the integrated small base station is adjusted to the target uplink sensitivity, wherein the target uplink sensitivity is the optimal uplink sensitivity reached by adjusting the gain. When the interactive object is the integrated small base station, the interactive object adjusts its initial uplink gain for multiple times, which comprises the following step: the initial uplink gain is reduced by a first preset value every time the initial uplink gain is adjusted.

2. The method of claim 1, wherein, When the interactive object is the radio frequency distribution system, the interactive object adjusts its initial uplink gain for multiple times, which comprises the following step: the initial uplink gain is increased by a second preset value every time the initial uplink gain is adjusted.

3. The method of claim 1, wherein, ​ 4. The method of claim 1, wherein, The initial uplink gain comprises a first uplink gain of the radio frequency distribution system; the noise coefficient comprises a first noise coefficient of the integrated small base station and a second noise coefficient of the radio frequency distribution system; the communication information further comprises a third noise coefficient and a second uplink gain of a cascade cable, wherein the cascade cable is in the radio frequency distribution system; The first target noise value is determined by the following method: In each adjustment, a first noise value of the integrated small base station is determined according to the first noise coefficient, the first uplink gain and the second uplink gain, a second noise value of the radio frequency distribution system is determined according to the second noise coefficient, and a third noise value of the cascade cable is determined according to the third noise coefficient and the first uplink gain; A new noise value after adjustment is determined according to the first noise value, the second noise value and the third noise value; The first target noise value is determined according to the new noise value.

5. The method of claim 4, wherein, The first target noise value is determined according to the new noise value, comprising: A third target noise value is obtained, wherein the adjustment number corresponding to the new noise value is N, and the adjustment number corresponding to the third target noise value is N-1; A target difference value of the new noise value and the third target noise value is determined, and the target difference value is compared with the preset threshold value to obtain a comparison result; In a case where the comparison result indicates that the target difference value is less than the preset threshold value, the new noise value is determined as the first target noise value; In a case where the comparison result indicates that the target difference value is greater than or equal to the preset threshold value, the interactive object continues to determine the first target noise value by adjusting the uplink gain of itself.

6. The method of claim 4, wherein, The new noise value after adjustment is determined according to the first noise value, the second noise value and the third noise value, comprising: The new noise value is determined according to the following formula: NF = 10Log(F), F = F1 + F2 + F3 wherein F is the adjusted noise figure, NF is the new noise figure, F2 is the second noise figure, F3 is the third noise figure, F1 is the first noise figure, NF1 is the first noise figure, NF2 is the second noise figure, NF3 is the third noise figure, G0 is the initial uplink gain of the RF distribution system, Gi is the uplink gain of the cascade cable.

7. The method according to any one of claims 1 to 6, characterized in that, The target uplink sensitivity is determined according to the first target noise value, comprising: The bandwidth and the signal-to-noise ratio of the communication signal of the integrated small base station are obtained; The target uplink sensitivity is determined according to the first target noise value, the bandwidth and the signal-to-noise ratio.

8. A base station distribution system, characterized by Comprising: An integrated small base station and a radio frequency distribution system, wherein the integrated small base station and the radio frequency distribution system at least interact through master-slave communication signals, and in a case where the integrated small base station and the radio frequency distribution system interact through the master-slave communication signals, the integrated small base station is a master device, and the radio frequency distribution system is a slave device; or the integrated small base station is a slave device, and the radio frequency distribution system is a master device; The integrated small base station comprises a first signal processing unit configured to obtain communication information of the radio frequency distribution system through the master-slave communication signals, wherein the communication information at least comprises an initial uplink gain and a noise coefficient; The integrated small base station further comprises an adjustable attenuator, which is configured to adjust the initial uplink gain of the integrated small base station for multiple times until the difference between the first target noise value of the base station distribution system and the second target noise value of the base station distribution system is less than a preset threshold value, and stop adjusting the initial uplink gain, wherein the preset threshold value is a preset minimum value of noise variation, the first target noise value is determined according to the noise coefficient and the initial uplink gain after this adjustment, and the second target noise value is determined according to the noise coefficient and the initial uplink gain after the last adjustment of the previous adjustment; the multiple times of adjusting the initial uplink gain of the integrated small base station comprises: in the case that the first master-slave communication signal received by the master device contains a control signal and the second master-slave communication signal received by the slave device does not contain the control signal, the master device adjusts the uplink gain of the master device, wherein the control signal is a signal for indicating noise adjustment; in the case that the first master-slave communication signal received by the master device does not contain the control signal and the second master-slave communication signal received by the slave device contains the control signal, the slave device adjusts the uplink gain of the slave device; in the case that the first master-slave communication signal received by the master device contains the control signal and the second master-slave communication signal received by the slave device contains the control signal, the master device adjusts the uplink gain of the master device, and at the same time, the slave device adjusts the uplink gain of the slave device; wherein the integrated small base station adjusts the initial uplink gain in a decreasing manner, and the noise of the base station distribution system is recalculated every time the initial uplink gain is adjusted; The radio frequency distribution system comprises a second signal processing unit configured to obtain communication information of the integrated small base station through master-slave communication signals, wherein the communication information at least comprises an initial uplink gain and a noise coefficient. The radio frequency distribution system further comprises a digital adjustable attenuation module, configured to adjust the initial uplink gain of the radio frequency distribution system for multiple times until the difference between the first target noise value of the base station distribution system and the second target noise value of the base station distribution system is less than the preset threshold value, and stop adjusting the initial uplink gain; the multiple times of adjusting the initial uplink gain of the radio frequency distribution system comprises: in a case that the first master-slave communication signal received by the master device contains a control signal and the second master-slave communication signal received by the slave device does not contain the control signal, the master device adjusts the uplink gain of the master device, wherein the control signal is a signal for indicating adjustment of noise; in a case that the first master-slave communication signal received by the master device does not contain the control signal and the second master-slave communication signal received by the slave device contains the control signal, the slave device adjusts the uplink gain of the slave device; in a case that the first master-slave communication signal received by the master device contains the control signal and the second master-slave communication signal received by the slave device contains the control signal, the master device adjusts the uplink gain of the master device, and simultaneously, the slave device adjusts the uplink gain of the slave device; wherein the integrated small base station adjusts the initial uplink gain in a decreasing manner, and recalculates the noise of the base station distribution system after each adjustment; The base station distribution system is further configured to determine a target uplink sensitivity according to the target noise value, and adjust the uplink sensitivity of the integrated small base station to the target uplink sensitivity, wherein the target uplink sensitivity is the optimal uplink sensitivity achieved by adjusting the gain.

9. The base station distribution system of claim 8, wherein, The integrated small base station and the radio frequency distribution system both comprise a target interface, wherein the target interface is an interface supporting transmission of master-slave communication signals.

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