CN111372306B - Method for determining signal power, related device and computer readable storage medium - Google Patents
Method for determining signal power, related device and computer readable storage medium Download PDFInfo
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- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
Abstract
The disclosure provides a near-end power detection unit, an indoor distribution system, a method and a device for determining signal power and a computer readable storage medium, and relates to the field of communication. The near-end power detection unit includes: the power detection module is configured to detect the transmitting signal power and the real-time transmitting signal power of the remote radio unit at a preset moment at a near-end detection point; the power receiving module is configured to receive the transmission signal power of the far-end antenna unit at a preset moment, which is sent by the near-end communication unit; a loss determination module configured to determine a path loss from a near-end detection point to a far-end antenna unit according to a transmission signal power of the radio remote unit at a preset time and a transmission signal power of the far-end antenna unit at the preset time; and the power determining module is configured to determine the real-time transmitting signal power of the remote antenna unit according to the real-time transmitting signal power and the path loss. The method and the device can simply and efficiently acquire the real-time transmitting signal power of the remote antenna unit.
Description
Technical Field
The present disclosure relates to the field of communications, and in particular, to a near-end power detection unit, an indoor distribution system, a method and an apparatus for determining signal power, and a computer-readable storage medium.
Background
The popularization of mobile intelligent terminals changes the daily life style of people. In order to meet the increasing demand of mobile data traffic, the increasing demand of mobile intelligent terminal access and the service demand in various application scenarios, a fifth generation mobile communication (5G for short) system is emerging.
A large amount of services in the 5G system occur in indoor scenes, such as smart homes, intelligent factories, augmented reality, virtual reality and the like. The 5G indoor application scene is a scene which is considered in the early stage of 5G construction, and the indoor coverage scheme is the key of 5G commercialization. The 5G signal has high working frequency, large signal space loss and poor penetration capability, so that the coverage area of the 5G base station is limited. In the indoor closed environment such as an elevator, a basement and the like, the 5G signal coverage is weak, and a communication signal coverage blind area is formed.
Disclosure of Invention
The inventor researches and discovers that a scheme of signal coverage can be completed by adopting a 5G indoor distribution system (indoor distribution system for short) so as to solve the coverage problem of indoor scenes. For example, a plurality of Remote antennas are directly connected to a base station RRU (Remote Radio Unit) through a power divider, a coupler, and the like to complete 5G signal coverage, so that the signal coverage problem of an indoor closed environment can be rapidly solved. However, the coverage area of the scenes such as basements and underground parking lots is large, and a large number of remote antennas are required. When the indoor distribution system is newly built or maintained, in order to ensure a good network coverage effect, the output power of all the remote antenna heads needs to be monitored, but the existing indoor distribution system cannot automatically detect the working state or the output power of the remote antenna in real time. If the method depends on manual detection, the cost is high, the efficiency is low, and the timeliness of fault analysis and positioning is poor.
The technical problem solved by the present disclosure is how to simply and efficiently obtain the real-time transmission signal power of the remote antenna unit in the 5G indoor distribution system.
According to an aspect of the embodiments of the present disclosure, there is provided a near-end power detection unit including: the power detection module is configured to detect the transmitting signal power and the real-time transmitting signal power of the remote radio unit at a preset moment at a near-end detection point of the remote radio unit; the power receiving module is configured to receive the transmission signal power of the far-end antenna unit at a preset moment, which is sent by the near-end communication unit; a loss determination module configured to determine a path loss from a near-end detection point to a far-end antenna unit according to a transmission signal power of the radio remote unit at a preset time and a transmission signal power of the far-end antenna unit at the preset time; and the power determining module is configured to determine the real-time transmitting signal power of the remote antenna unit according to the real-time transmitting signal power and the path loss.
In some embodiments, the preset time comprises a plurality of times; the loss determination module is configured to: respectively determining path loss from a near-end detection point to a far-end antenna unit at a plurality of moments according to the transmitting signal power of the radio remote unit at the plurality of moments and the transmitting signal power of the far-end antenna unit at the plurality of moments; and averaging the path loss at a plurality of moments to obtain the path loss from the near-end detection point to the far-end antenna unit.
In some embodiments, the loss determination module is further configured to: before averaging the path losses at a plurality of times, determining median of the path losses at the plurality of times, and deleting data having an absolute value of a difference from the median of the path losses at the plurality of times larger than a predetermined value.
According to another aspect of an embodiment of the present disclosure, there is provided an indoor distribution system including: the system comprises a far-end antenna unit, a far-end power detection unit, a far-end communication unit, a near-end communication unit and a near-end power detection unit; the remote power detection unit is in signal connection with the remote antenna unit and is configured to detect the transmitted signal power of the remote antenna unit at a preset moment; the far-end communication unit is in signal connection with the far-end power detection unit and is configured to send the transmitting signal power of the far-end antenna unit at a preset moment to the near-end communication unit; the near-end communication unit is in signal connection with the far-end communication unit and is configured to send the received transmitting signal power of the far-end antenna unit at a preset moment to the near-end power detection unit.
In some embodiments, the transmit signal power of the remote antenna unit is an average power of the transmit signals of the plurality of remote antenna units.
In some embodiments, the indoor distribution system further comprises a combiner; the combiner is respectively in signal connection with the near-end power detection unit and the radio remote units of different frequency bands, and is configured to: combining the transmitting signals of the radio remote units with different frequency bands; the far-end power detection unit is configured to: detecting the transmitting signal power of the remote antenna unit at a preset time and a preset frequency band; the remote communication unit is configured to: transmitting the transmitting signal power of the far-end antenna unit at a preset time and a preset frequency band to the near-end communication unit; the near-end communication unit is configured to: sending the received transmitting signal power of the far-end antenna unit at a preset time and a preset frequency band to a near-end power detection unit; the power detection module is configured to: detecting the transmitting signal power and the real-time transmitting signal power of the radio remote unit at a preset time and a preset frequency band at a near-end detection point; the power receiving module is configured to: receiving the transmitting signal power of a far-end antenna unit sent by a near-end communication unit at a preset time and a preset frequency band; the loss determination module is configured to: determining the path loss from a near-end detection point to a far-end antenna unit on a preset frequency band according to the transmission signal power of the radio remote unit on the preset time and the preset frequency band and the transmission signal power of the far-end antenna unit on the preset time and the preset frequency band; the power determination module is configured to: and determining the real-time transmitting signal power of the remote antenna unit on the preset frequency band according to the real-time transmitting signal power on the preset frequency band and the path loss on the preset frequency band.
In some embodiments, the indoor distribution system further comprises: the first coupler is respectively in signal connection with the combiner and the near-end power detection unit; the second coupler is respectively in signal connection with the first coupler and the near-end communication unit; and the third coupler is respectively in signal connection with the remote antenna unit and the second coupler.
According to yet another aspect of the embodiments of the present disclosure, there is provided a method of determining a signal power, including: detecting the transmitting signal power and the real-time transmitting signal power of the radio remote unit at a preset moment at a near-end detection point of the radio remote unit; receiving the transmitting signal power of a far-end antenna unit at a preset moment, which is sent by a near-end communication unit; determining the path loss from a near-end detection point to a far-end antenna unit according to the transmitting signal power of the radio frequency remote unit at a preset moment and the transmitting signal power of the far-end antenna unit at the preset moment; and determining the real-time transmitting signal power of the remote antenna unit according to the real-time transmitting signal power and the path loss.
In some embodiments, the preset time comprises a plurality of times; determining the path loss from the near-end detection point to the far-end antenna unit according to the transmitting signal power of the radio remote unit at the preset moment and the transmitting signal power of the far-end antenna unit at the preset moment comprises: respectively determining path loss from a near-end detection point to a far-end antenna unit at a plurality of moments according to the transmitting signal power of the radio remote unit at the plurality of moments and the transmitting signal power of the far-end antenna unit at the plurality of moments; and averaging the path loss at a plurality of moments to obtain the path loss from the near-end detection point to the far-end antenna unit.
In some embodiments, determining the path loss from the near-end detection point to the far-end antenna unit according to the transmission signal power of the remote radio unit at the preset time and the transmission signal power of the far-end antenna unit at the preset time further includes: before averaging the path losses at a plurality of times, determining median of the path losses at the plurality of times, and deleting data having an absolute value of a difference from the median of the path losses at the plurality of times larger than a predetermined value.
According to still another aspect of the embodiments of the present disclosure, there is provided an apparatus for determining a signal power, including: a memory and a processor coupled to the memory, the processor configured to perform the aforementioned method of determining signal power based on instructions stored in the memory.
According to yet another aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, which when executed by a processor, implement the aforementioned method of determining signal power.
The method and the device can simply and efficiently obtain the real-time transmitting signal power of the remote antenna unit in the 5G indoor distribution system, so that the coverage condition and the link state of the remote antenna unit are automatically identified. In the embodiment, the output real-time power monitoring of all the remote antenna units can be realized only by configuring the modem at the near end and not by configuring the modem at each remote antenna unit, so that engineering personnel can be guided to quickly, inexpensively and efficiently position faults through intelligent operation and maintenance, and complicated real-time output power detection for each remote antenna unit is avoided.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 shows a schematic structural diagram of a power detection unit according to some embodiments of the present disclosure.
Fig. 2 illustrates a schematic structural diagram of an indoor distribution system of some embodiments of the present disclosure.
Fig. 3 illustrates a flow diagram of a method of determining signal power in accordance with some embodiments of the present disclosure.
Fig. 4 illustrates a schematic structural diagram of an apparatus for determining signal power according to some embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The inventor researches and discovers that if radio frequency signals of 2G, 3G, 4G and 5G base stations RRUs are combined to one radio frequency channel through a combiner and then connected to a plurality of remote antennas through a multi-path power divider, a coupler and the like to complete signal coverage, huge remote antenna heads are needed in an indoor distribution system due to the fact that indoor scenes such as basements or underground parking lots need large signal coverage areas inevitably. Therefore, when the indoor distribution system is newly built or maintained, it is difficult to automatically detect the states of all the remote antennas in real time, and it is necessary to manually detect the output powers of all the remote antenna heads to ensure the coverage areas of all the remote antennas.
Some embodiments of the near-end power detection unit of the present disclosure are first described with reference to fig. 1 to solve the above-mentioned problems.
Fig. 1 shows a schematic structural diagram of a power detection unit according to some embodiments of the present disclosure. As shown in fig. 1, the power detection unit 10 in the present embodiment includes: a power detection module 101 configured to detect, at a near-end detection point of the remote radio unit, a transmission signal power and a real-time transmission signal power of the remote radio unit at a preset time; a power receiving module 102 configured to receive a transmission signal power of the far-end antenna unit at a preset time, which is sent by the near-end communication unit; a loss determining module 103 configured to determine a path loss from the near-end detection point to the far-end antenna unit according to a transmission signal power of the radio remote unit at a preset time and a transmission signal power of the far-end antenna unit at a preset time; a power determination module 104 configured to determine the real-time transmit signal power of the remote antenna unit according to the real-time transmit signal power and the path loss.
The embodiment can simply and efficiently acquire the real-time transmitting signal power of the remote antenna unit in the 5G indoor distribution system, thereby automatically identifying the coverage condition and the link state of the remote antenna unit. In the embodiment, the output real-time power monitoring of all the remote antenna units can be realized only by configuring the modem at the near end and not by configuring the modem at each remote antenna unit, so that engineering personnel can be guided to quickly, inexpensively and efficiently position faults through intelligent operation and maintenance, and complicated real-time output power detection for each remote antenna unit is avoided.
In some embodiments, the preset time comprises a plurality of times. The loss determination module 103 is configured to: respectively determining path loss from a near-end detection point to a far-end antenna unit at a plurality of moments according to the transmitting signal power of the radio remote unit at the plurality of moments and the transmitting signal power of the far-end antenna unit at the plurality of moments; and averaging the path loss at a plurality of moments to obtain the path loss from the near-end detection point to the far-end antenna unit.
In some embodiments, the loss determination module 103 is further configured to: before averaging the path losses at a plurality of times, determining median of the path losses at the plurality of times, and deleting data having an absolute value of a difference from the median of the path losses at the plurality of times larger than a predetermined value.
Some embodiments of the disclosed indoor distribution system are described below in conjunction with fig. 2.
Fig. 2 illustrates a schematic structural diagram of an indoor distribution system of some embodiments of the present disclosure. As shown in fig. 2, the indoor distribution system 20 in the present embodiment includes: a far-end antenna unit 201, a far-end power detection unit 202, a far-end communication unit 203, a near-end communication unit 204, and a near-end power detection unit 10. The remote power detection unit 202 is in signal connection with the remote antenna unit 201, and is configured to detect the transmission signal power of the remote antenna unit 201 at a preset time; the far-end communication unit 203 is in signal connection with the far-end power detection unit 202 and is configured to transmit the transmission signal power of the far-end antenna unit 201 at a preset time to the near-end communication unit 204; the near-end communication unit 204 is in signal connection with the far-end communication unit 203, and is configured to send the received transmission signal power of the far-end antenna unit 201 at a preset time to the near-end power detection unit.
In some embodiments, the transmit signal power of remote antenna unit 201 is the average power of the transmit signals of multiple remote antenna units 201.
In some embodiments, the indoor distribution system 20 further includes a combiner 205. The combiner is respectively in signal connection with the near-end power detection unit and the radio remote units of different frequency bands, and is configured to: and combining the transmitting signals of the radio frequency remote units with different frequency bands. The far-end power detection unit 202 is configured to: detecting the transmission signal power of the remote antenna unit 201 at a preset time and a preset frequency band; the remote communication unit 203 is configured to: transmitting signal power of the far-end antenna unit 201 at a preset time and a preset frequency band to the near-end communication unit 204; the near-end communication unit 204 is configured to: and sending the received transmission signal power of the far-end antenna unit 201 at a preset time and a preset frequency band to the near-end power detection unit. The power detection module 101 is configured to: detecting the transmitting signal power and the real-time transmitting signal power of the radio remote unit at a preset time and a preset frequency band at a near-end detection point; the power receiving module 102 is configured to: receiving the transmission signal power of the far-end antenna unit 201 at a preset time and a preset frequency band, which is sent by the near-end communication unit 204; the loss determination module 103 is configured to: determining the path loss from the near-end detection point to the far-end antenna unit 201 on the preset frequency band according to the transmission signal power of the radio remote unit on the preset time and the preset frequency band and the transmission signal power of the far-end antenna unit 201 on the preset time and the preset frequency band; the power determination module 104 is configured to: the real-time transmission signal power of the remote antenna unit 201 on the preset frequency band is determined according to the real-time transmission signal power on the preset frequency band and the path loss on the preset frequency band.
In some embodiments, the indoor distribution system 20 further comprises: a first coupler 206, which is respectively connected with the combiner 205 and the near-end power detection unit 10 by signals; a second coupler 207, which is respectively connected with the first coupler and the near-end communication unit 204 by signals; the third coupler 208 is in signal connection with the remote antenna unit 201 and the second coupler, respectively.
In some embodiments, the near-end communication unit 204, the near-end power detection unit 10, the first coupler 206, and the second coupler 207 may be located in a near-end module, and the far-end power detection unit 202 and the far-end communication unit 203 may be located in a far-end module. The near-end communication unit 204 may communicate with the far-end communication unit 203 by BT (Bluetooth), OOK (On-Off Keying), FSK (Frequency-shift Keying), and the like.
The operation of the indoor distribution system 20 is specifically exemplified as follows.
(1) The remote power detection unit can detect (t)1,t2…tm) The detected average power of the transmitted signal at the time is (P)n1,Pn2…Pnm) Where n is the number of the remote antenna unit. For example, the remote power detection unit n is at time t1～t5The detection average power of the detected 5G signal is (-10, -12, -10, -11, -10).
(2) The remote communication unit can average power (P) of detection waves of the remote antenna unit at different timesn1,Pn2…Pnm) And sending the data to a near-end communication unit (n is a far-end antenna number).
(3) The near-end power detection unit can detect at (t)1,t2…tm) Mean power of the transmitted signal detection at the time, denoted as P1,P2…Pm. For example, the near-end power detection unit is at time t1～t5The detection average power of the unit 5G signal is (0, -7,0, -1, 1).
(4) Near end unit buffer receive (P)n1,Pn2…Pnm) Calculating the path loss L of the near end and the far end on the communication systemn＝Px-PnxWhere n is the remote antenna number. The near-end unit calculates the path loss (including the far-end unit gain) of a 5G signal channel from the near end to the far-end antenna unit n to be (10,5,10,10, 9); after the discrete data 5 is eliminated, the path loss of the 5G signal channel from the near end to the far end antenna n is about 10dB according to analysis.
(5) The end power detection unit can detect the real-time output power P of the near-end signal in real time through the Modem0. For example, the Modem of the near-end power detection unit detects that the radio frequency real-time output power of the near-end 5G channel is 20 dBm.
(6) The near-end power detection unit calculates the far-end listReal-time output power Pout of element antenna portn＝P0-Ln. For example, the near-end power detection unit calculates the real-time output power of the 5G signal channel of the far-end antenna unit n to be 20dBm-10 dB-10 dBm, and sends all data to the background.
The indoor distribution system in this embodiment can calculate the path loss between the near-end module and the far-end module through the synergistic effect of the near-end module and the far-end module, thereby implementing automatic feedback of the states of all the far-end antennas, automatically acquiring the output power of the far-end antennas, and monitoring the coverage states of all the far-end antennas in real time.
Some embodiments of the disclosed method of determining signal power are described below in conjunction with fig. 3.
Fig. 3 illustrates a flow diagram of a method of determining signal power in accordance with some embodiments of the present disclosure. As shown in fig. 3, the present embodiment includes steps S301 to S304.
In step S301, the transmit signal power and the real-time transmit signal power of the remote radio unit at a preset time are detected at a proximal detection point of the remote radio unit.
In step S302, the transmission signal power of the far-end antenna unit at a preset time sent by the near-end communication unit is received.
In step S303, a path loss from the near-end detection point to the far-end antenna unit is determined according to the transmission signal power of the radio remote unit at the preset time and the transmission signal power of the far-end antenna unit at the preset time.
In some embodiments, the preset time comprises a plurality of times. In this case, path losses from the near-end detection point to the far-end antenna unit at multiple times are respectively determined according to the transmission signal power of the radio remote unit at multiple times and the transmission signal power of the far-end antenna unit at multiple times; and averaging the path loss at a plurality of moments to obtain the path loss from the near-end detection point to the far-end antenna unit.
In some embodiments, before averaging the path losses at the plurality of time instants, a median of the path losses at the plurality of time instants is determined, and data having an absolute value of a difference from the median greater than a preset value is deleted from the path losses at the plurality of time instants.
In step S304, the real-time transmission signal power of the remote antenna unit is determined according to the real-time transmission signal power and the path loss.
The embodiment can simply and efficiently acquire the real-time transmitting signal power of the remote antenna unit in the 5G indoor distribution system, thereby automatically identifying the coverage condition and the link state of the remote antenna unit. In the embodiment, the output real-time power monitoring of all the remote antenna units can be realized only by configuring the modem at the near end and not by configuring the modem at each remote antenna unit, so that engineering personnel can be guided to quickly, inexpensively and efficiently position faults through intelligent operation and maintenance, and complicated real-time output power detection for each remote antenna unit is avoided.
Some embodiments of the disclosed apparatus for determining signal power are described below in conjunction with fig. 4.
Fig. 4 illustrates a schematic structural diagram of an apparatus for determining signal power according to some embodiments of the present disclosure. As shown in fig. 4, the apparatus 40 for determining signal power of this embodiment includes: a memory 410 and a processor 420 coupled to the memory 410, the processor 420 configured to perform the method of determining signal power in any of the foregoing embodiments based on instructions stored in the memory 410.
The means for determining signal power 40 may further comprise an input output interface 430, a network interface 440, a storage interface 450, etc. These interfaces 430, 440, 450 and the connection between the memory 410 and the processor 420 may be, for example, via a bus 460. The input/output interface 430 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 440 provides a connection interface for various networking devices. The storage interface 450 provides a connection interface for external storage devices such as an SD card and a usb disk.
The present disclosure also includes a computer readable storage medium having stored thereon computer instructions that, when executed by a processor, implement the method of determining signal power in any of the foregoing embodiments.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (8)
1. A near-end power detection unit, comprising:
the power detection module is configured to detect the transmitting signal power and the real-time transmitting signal power of the remote radio unit at a preset moment at a near-end detection point of the remote radio unit, wherein the preset moment comprises a plurality of moments;
the power receiving module is configured to receive the transmission signal power of the far-end antenna unit at a preset moment, which is sent by the near-end communication unit;
a loss determining module configured to determine path losses from the near-end detection point to a far-end antenna unit at the multiple times according to the transmission signal powers of the radio remote unit at the multiple times and the transmission signal powers of the far-end antenna unit at the multiple times, respectively; determining median of path loss at the plurality of moments, and deleting data with absolute value of difference between the median and the path loss at the plurality of moments larger than a preset value; averaging the path loss at the plurality of moments to obtain the path loss from the near-end detection point to the far-end antenna unit;
a power determination module configured to determine a real-time transmit signal power of a remote antenna unit according to the real-time transmit signal power and the path loss.
2. An indoor distribution system comprising: a far-end antenna unit, a far-end power detection unit, a far-end communication unit, a near-end communication unit and a near-end power detection unit according to claim 1; wherein the content of the first and second substances,
the far-end power detection unit is in signal connection with the far-end antenna unit and is configured to detect the transmitting signal power of the far-end antenna unit at a preset moment;
the far-end communication unit is in signal connection with the far-end power detection unit and is configured to send the transmitting signal power of the far-end antenna unit at a preset moment to the near-end communication unit;
the near-end communication unit is in signal connection with the far-end communication unit and is configured to send the received transmitting signal power of the far-end antenna unit at a preset moment to the near-end power detection unit.
3. The indoor distribution system of claim 2, wherein the transmit signal power of the remote antenna units is a transmit signal average power of a plurality of remote antenna units.
4. The indoor distribution system of claim 2, further comprising a combiner; the combiner is respectively in signal connection with the near-end power detection unit and the radio remote units of different frequency bands, and is configured to: combining the transmitting signals of the radio remote units with different frequency bands;
the far-end power detection unit is configured to: detecting the transmitting signal power of the remote antenna unit at a preset time and a preset frequency band;
the remote communication unit is configured to: transmitting the transmitting signal power of the far-end antenna unit at a preset time and a preset frequency band to the near-end communication unit;
the near-end communication unit is configured to: sending the received transmitting signal power of the far-end antenna unit at a preset time and a preset frequency band to a near-end power detection unit;
the power detection module is configured to: detecting the transmitting signal power and the real-time transmitting signal power of the radio remote unit at a preset time and a preset frequency band at the near-end detection point;
the power receiving module is configured to: receiving the transmitting signal power of a far-end antenna unit sent by a near-end communication unit at a preset time and a preset frequency band;
the loss determination module is configured to: determining the path loss from the near-end detection point to the far-end antenna unit on the preset frequency band according to the transmission signal power of the radio remote unit on the preset time and the preset frequency band and the transmission signal power of the far-end antenna unit on the preset time and the preset frequency band;
the power determination module is configured to: and determining the real-time transmitting signal power of the remote antenna unit on the preset frequency band according to the real-time transmitting signal power on the preset frequency band and the path loss on the preset frequency band.
5. The indoor distribution system of claim 4, further comprising:
the first coupler is respectively in signal connection with the combiner and the near-end power detection unit;
the second coupler is respectively in signal connection with the first coupler and the near-end communication unit;
and the third coupler is respectively in signal connection with the remote antenna unit and the second coupler.
6. A method of determining signal power, comprising:
detecting the transmitting signal power and the real-time transmitting signal power of a radio remote unit at a preset moment at a near-end detection point of the radio remote unit, wherein the preset moment comprises a plurality of moments;
receiving the transmitting signal power of a far-end antenna unit at a preset moment, which is sent by a near-end communication unit;
respectively determining path loss from the near-end detection point to the far-end antenna unit at the multiple moments according to the transmitting signal power of the radio remote unit at the multiple moments and the transmitting signal power of the far-end antenna unit at the multiple moments; determining median of path loss at the plurality of moments, and deleting data with absolute value of difference between the median and the path loss at the plurality of moments larger than a preset value; averaging the path loss at the plurality of moments to obtain the path loss from the near-end detection point to the far-end antenna unit;
and determining the real-time transmitting signal power of the remote antenna unit according to the real-time transmitting signal power and the path loss.
7. An apparatus for determining signal power, comprising: a memory and a processor coupled to the memory, the processor configured to perform the method of determining signal power of claim 6 based on instructions stored in the memory.
8. A computer readable storage medium, wherein the computer readable storage medium stores computer instructions which, when executed by a processor, implement the method of determining signal power of claim 6.
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| CN112601236A (en) * | 2020-12-07 | 2021-04-02 | 深圳市佳贤通信设备有限公司 | 5G frequency shift multi-path system without adding network protocol and distribution method thereof |
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