CN111757332A - Network coverage optimization equipment and gain control method thereof - Google Patents
Network coverage optimization equipment and gain control method thereof Download PDFInfo
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- CN111757332A CN111757332A CN201910251944.9A CN201910251944A CN111757332A CN 111757332 A CN111757332 A CN 111757332A CN 201910251944 A CN201910251944 A CN 201910251944A CN 111757332 A CN111757332 A CN 111757332A
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Abstract
The invention provides a network coverage optimization device and a gain control method thereof. According to the gain control method of the network coverage optimization equipment, the gain control can be automatically carried out according to the information source power received by the network coverage optimization equipment. The invention avoids the network problem caused by parameter mismatching when the parameters are manually set, reduces the maintenance cost of the equipment and improves the coverage effect of a network optimization system.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to network coverage optimization equipment and a gain control method thereof.
Background
In the field of mobile communication, a signal coverage optimization system transparently transmits and amplifies a base station signal of an operator, so that the coverage area of a base station information source is enlarged, and the coverage optimization of an operator network is realized. In the wireless coverage scheme in the prior art, the applications of an active network coverage optimization device and a passive antenna feeder system are increasing.
In practical application, different coverage products can be selected according to specific scene information source conditions, mobile network coverage optimization can be realized through correct station opening setting of the network coverage optimization equipment, and meanwhile, interference on an information source base station is not caused. However, how to ensure that the manual station opening setting is correct and the setting of the equipment parameters when the information source changes is to be intelligently adapted to the information source change is an urgent problem to be solved.
One solution in the prior art is to guide engineers to correctly set the start parameters through technical training, but this is not an efficient solution, and when the information source changes, the parameters need to be manually set again, which increases the labor cost and also has the problem of timeliness.
Disclosure of Invention
An object of the embodiments of the present invention is to provide a network coverage optimization device and a gain control method thereof, which implement a scheme for automatically performing gain control according to an information source on a network coverage optimization device side, avoid a network problem that parameters are easily set by people due to parameter mismatch, reduce the maintenance cost of the device, and improve the coverage effect of a network optimization system.
The embodiment of the invention provides a gain control method of network coverage optimization equipment, which comprises the following steps:
acquiring the pilot signal power of the information source received by the network coverage optimization equipment;
determining whether to start a parameter adjusting function according to whether the pilot signal power exceeds a power interval corresponding to the information source;
and when the parameter adjusting function is started, adjusting the gain of the network coverage optimizing equipment.
Preferably, the step of obtaining the pilot signal power of the source received by the network coverage optimizing device includes:
and traversing the working frequency band of the network coverage optimization equipment, detecting the signal source signal and obtaining the pilot signal power of the signal source.
Preferably, before the step of determining whether to activate the parameter adjustment function, the method further comprises:
acquiring the system and the carrier number of the information source received by the network coverage optimization equipment;
and determining a power interval corresponding to the information source according to the capability parameter of the network coverage optimization equipment and the system and carrier number of the information source.
Preferably, when the signal source received by the network coverage optimization device is a single-mode signal source of the same base station, the step of determining the power interval corresponding to the signal source according to the capability parameter of the network coverage optimization device and the format and carrier number of the signal source includes:
when the standard of the information source is a single GSM information source, determining the upper limit P1 of the power interval corresponding to the information source as Pmax-Gmax-10logN, and the lower limit P2 as P1-delta P1;
when the standard of the information source is a single LTE information source, determining the upper limit P1 of a power interval corresponding to the information source as Pmax-Gmax-10logN-10logM1 and the lower limit P2 as P1-delta P2;
when the standard of the information source is a single WCDMA information source, determining the upper limit P1 of a power interval corresponding to the information source as Pmax-Gmax-10logN-10logM2 and the lower limit P2 as P1-delta P3;
wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, N is the number of carriers, 1/M1 represents the ratio of pilot signal power in the total power of the information source, 1/M2 represents the ratio of pilot signal power in the total power of the information source under the condition of single carrier, and Δ P1, Δ P2, and Δ P3 are respectively a first preset constant, a second preset constant, and a third preset constant.
Preferably, when the information source received by the network coverage optimization device is a mixed-mode information source of the same base station, the step of determining the power interval corresponding to the information source according to the capability parameter of the network coverage optimization device and the system and carrier number of the information source includes:
selecting the pilot signal power with the most stable power and the target system from the pilot signal powers of the mixed-mode information sources, and respectively using the pilot signal power and the target system as a reference signal power and a reference target system;
determining the upper limit P1 of the power interval corresponding to the information source as Pmax-Gmax-10log M3-10log M4, and the lower limit P2 as P1-delta P4;
wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, 1/M3 represents the ratio of the carrier power of the reference target system in the carrier power of the hybrid-analog signal source, 1/M4 represents the ratio of the reference signal power in the total power of the signal source of the reference target system, and Δ P4 is a fourth preset constant.
Preferably, when the information source received by the network coverage optimization device includes information sources of different base stations, or the information source received by the network coverage optimization device includes information sources of multiple systems whose power ratios are unknown, or the stability of the power of the information source received by the network coverage optimization device does not meet a predetermined requirement, the step of determining the power interval corresponding to the information source according to the capability parameter of the network coverage optimization device and the systems and the carrier number of the information source includes:
determining the upper limit P1 of the power interval corresponding to the information source as Pmax-Gmax and the lower limit P2 as P1-delta P5; wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, and Δ P5 is a fifth preset constant.
Preferably, when the parameter adjusting function is started, the step of adjusting the gain of the network coverage optimizing device includes:
when the pilot signal power is larger than the upper limit of the power interval corresponding to the information source, reducing the signal gain of the network coverage optimization equipment; and/or the presence of a gas in the gas,
and when the pilot signal power is smaller than the lower limit of the power interval corresponding to the information source, increasing the signal gain of the network coverage optimization equipment.
Preferably, when the parameter adjusting function is started, the step of adjusting the gain of the network coverage optimizing device further includes:
when the signal gain of the network coverage optimization device is reduced or increased, adjusting the gain of a first link, and adjusting the gain of a second link according to a preset uplink and downlink gain balance amount, wherein the first link is one of a forward link and a reverse link, and the second link is the other one of the forward link and the reverse link.
An embodiment of the present invention further provides a network coverage optimization device, including:
the transceiver is used for acquiring the pilot signal power of the information source received by the network coverage optimization equipment;
the processor is used for determining whether to start a parameter adjusting function according to whether the pilot signal power exceeds the power interval corresponding to the information source; and when the parameter adjusting function is started, adjusting the gain of the network coverage optimizing equipment.
Preferably, the transceiver is further configured to traverse an operating frequency band of the network coverage optimization device, detect an information source signal, and obtain a pilot signal power of the information source.
Preferably, the processor is further configured to obtain a system and a carrier number of the information source received by the network coverage optimization device before determining whether to start a parameter adjustment function; and determining a power interval corresponding to the information source according to the capability parameter of the network coverage optimization equipment and the system and carrier number of the information source.
Preferably, the processor is further configured to, when the information source received by the network coverage optimization device is a single-mode information source of the same base station:
if the standard of the information source is a single GSM information source, determining that the upper limit P1 of the power interval corresponding to the information source is Pmax-Gmax-10logN, and the lower limit P2 is P1-delta P1;
if the standard of the information source is a single LTE information source, determining that the upper limit P1 of a power interval corresponding to the information source is Pmax-Gmax-10logN-10logM1, and the lower limit P2 is P1-delta P2;
if the standard of the information source is a single WCDMA information source, determining that the upper limit P1 of the power interval corresponding to the information source is Pmax-Gmax-10log N-10log M2, and the lower limit P2 is P1-delta P3;
wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, N is the number of carriers, 1/M1 represents the ratio of pilot signal power in the total power of the information source, 1/M2 represents the ratio of pilot signal power in the total power of the information source under the condition of single carrier, and Δ P1, Δ P2, and Δ P3 are respectively a first preset constant, a second preset constant, and a third preset constant.
Preferably, the processor is further configured to select, when the information source received by the network coverage optimization device is a mixed-mode information source of the same base station, a pilot signal power with the most stable power and a target standard to which the pilot signal power belongs from pilot signal powers of the mixed-mode information sources, and use the pilot signal power and the target standard as a reference signal power and a reference target standard, respectively; determining the upper limit P1 of the power interval corresponding to the information source as Pmax-Gmax-10log M3-10log M4, and the lower limit P2 as P1-delta P4; wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, 1/M3 represents the ratio of the carrier power of the reference target system in the carrier power of the hybrid-analog signal source, 1/M4 represents the ratio of the reference signal power in the total power of the signal source of the reference target system, and Δ P4 is a fourth preset constant.
Preferably, the processor is further configured to determine that an upper limit P1 of a power interval corresponding to the information source is Pmax-Gmax and a lower limit P2 is P1- Δ P5 when the information source received by the network coverage optimization equipment includes information sources of different base stations, or the information source received by the network coverage optimization equipment includes information sources of multiple systems whose power ratios are unknown, or the stability of the power of the information source received by the network coverage optimization equipment does not meet a predetermined requirement; wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, and Δ P5 is a fifth preset constant.
Preferably, the processor is further configured to reduce a signal gain of the network coverage optimization device when the pilot signal power is greater than an upper limit of a power interval corresponding to the information source; and/or when the pilot signal power is smaller than the lower limit of the power interval corresponding to the information source, increasing the signal gain of the network coverage optimization equipment.
Preferably, the processor is further configured to, when the signal gain of the network coverage optimization device is decreased or increased, adjust a gain of a first link, and adjust a gain of a second link according to a preset uplink and downlink gain balance, where the first link is one of a forward link and a reverse link, and the second link is the other of the forward link and the reverse link.
An embodiment of the present invention further provides a network coverage optimization device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the gain control method of the network coverage optimization device as described above.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method are implemented as described above.
The network coverage optimization equipment and the gain control method thereof provided by the embodiment of the invention can intelligently and automatically control the gain of the network coverage optimization equipment according to the information source and automatically adjust the equipment parameters according to the change of the information source, thereby reducing the network problem caused by the parameter mismatch set manually, reducing the maintenance cost of the equipment and improving the coverage effect of a network optimization system.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic view of an application scenario of a gain control method of a network coverage optimization device according to an embodiment of the present invention;
fig. 2 is another schematic diagram of an application scenario of the gain control method of the network coverage optimization device according to the embodiment of the present invention;
fig. 3 is a schematic flowchart of a gain control method of a network coverage optimization device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a network coverage optimizing device according to an embodiment of the present invention;
fig. 5 is another schematic structural diagram of a network coverage optimizing device according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.
The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
The embodiment of the invention provides network coverage optimization equipment and a gain control method thereof, which can automatically control the gain on the network coverage optimization equipment side according to an information source, avoid the network problem that parameters are easily set manually and caused by parameter mismatching, reduce the maintenance cost of the equipment and improve the coverage effect of a network optimization system.
The network coverage optimization device of the embodiment of the invention comprises but is not limited to devices such as a digital repeater, an optical fiber distribution system, a micro repeater, a trunk amplifier and the like. These devices receive signals from a source (e.g., a base station) and transmit them to the coverage enhancement unit, and receive signals from the coverage enhancement unit and transmit them back to the source, either wirelessly or by wire. The coverage enhancement unit comprises a passive antenna feed system, a remote unit, a coverage antenna and other equipment.
For example, taking a digital repeater as an example, an existing digital repeater mainly includes an optical fiber repeater and a wireless repeater, fig. 1 and fig. 2 show two application scenarios of the gain control method of the network coverage optimization device according to the embodiment of the present invention, where fig. 1 is a distributed optical fiber repeater, and fig. 2 is a stand-alone wireless repeater. The digital repeater is taken as an example for illustration, and it should be noted that the present invention is not limited to the application scenario of the digital repeater, and can also be applied to other network coverage optimization devices except the digital repeater.
As shown in fig. 1, the optical fiber repeater includes a Radio Access Unit (RAU) and a High power Remote Unit (HRU). In a forward link (a downlink from a signal source to a digital repeater), a radio frequency access unit enters downlink radio frequency signals of the signal sources such as GSM, NB-IoT, FDD-LTE and the like into an optical fiber repeater in a wired coupling mode, converts the downlink radio frequency signals into digital signals, photoelectrically converts the digital signals into optical signals and transmits the optical signals to a remote unit; the high-power remote unit converts the digital signals issued by the radio frequency access unit into radio frequency signals, and wireless coverage of signals such as GSM, NB-IoT, FDD-LTE and the like is realized. In a reverse link (from a digital repeater to a signal source), the high-power remote unit converts an uplink radio frequency signal received wirelessly into a digital signal and transmits the digital signal to the radio frequency access unit; the radio frequency access unit converts the digital signals uploaded by the remote unit into uplink radio frequency signals and transmits the uplink radio frequency signals back to the information source in a wired mode. The radio frequency access unit supports the function of remote monitoring management on the remote unit.
As shown in fig. 2, the digital wireless repeater station wirelessly couples downlink radio frequency signals of signal sources such as GSM, NB-IoT, FDD-LTE, etc. into the digital wireless repeater station, amplifies the downlink radio frequency signals with low noise, converts the downlink radio frequency signals into digital signals, digitizes the digital signals, converts the digital signals into radio frequency signals, amplifies the radio frequency signals, and then achieves wireless coverage of the signals such as GSM, NB-IoT, FDD-LTE, etc.; meanwhile, a user signal enters the digital wireless repeater system in a wireless receiving mode, and is transmitted back to the information source in a wireless mode after digital-to-analog conversion, digital processing and power amplification.
Fiber optic distribution systems typically include: the system comprises a radio frequency access unit connected with a signal source, an expansion unit connected with the access unit, and a plurality of remote units connected with the expansion unit. The structure of the optical fiber distributed system is similar to the digital repeater shown in fig. 1, except that an extension unit is added to the radio frequency access unit and the remote unit, thereby extending the access capability and the coverage area of the system. Specifically, the extension unit may be connected to the radio frequency access unit and the remote unit through optical fibers.
For the specific structure of the micro-repeater and the trunk amplifier, reference may be made to the related description of the prior art, and for brevity, no further description is provided herein.
Referring to fig. 3, an embodiment of the present invention provides a gain control method for a network coverage optimization device, where the method analyzes each carrier information source by traversing signals of all carrier channels, records the system and power of each information source, and optimally configures device parameters of the network coverage optimization device by using a self-adaptive algorithm, so as to ensure that the network coverage optimization device works in an optimal state.
Referring to fig. 3, the method includes:
Here, the pilot signal power of the source can be obtained by detecting the source signal through traversing the operating frequency band of the network coverage optimization device. Through the step 31, the embodiment of the present invention realizes the information source detection function, and can determine the information source system, the carrier number and the pilot signal power of different signals received by the network coverage optimization device by traversing the signals in the working frequency band of the network coverage optimization device. For example, for GSM systems, the pilot signal power is typically the broadcast channel (BCCH) power, LTE communication systems the Primary Synchronization Signal (PSS) power, and WCDMA communication systems the pilot power (RSCP).
And step 32, determining whether to start a parameter adjusting function according to whether the pilot signal power exceeds the power interval corresponding to the information source.
Here, the embodiment of the present invention determines whether to activate the parameter adjustment function according to the strength of the pilot signal power (or the total power of the input signal) of the current forward link input of the network coverage optimization device. Specifically, the parameter adjustment function may be started when the power intensity of the input pilot signal is higher than the upper line of the power interval corresponding to the information source due to a change in carrier frequency or transmission path of the information source, or is lower than the lower limit of the power interval corresponding to the information source.
And step 33, when the parameter adjusting function is started, adjusting the gain of the network coverage optimizing equipment.
Here, when gain adjustment is required, if the pilot signal power is greater than the upper limit of the power interval corresponding to the information source, the signal gain of the network coverage optimization device may be reduced; and/or if the pilot signal power is smaller than the lower limit of the power interval corresponding to the information source, the signal gain of the network coverage optimization equipment can be increased.
In addition, in order to ensure that the uplink background noise of the network coverage optimization equipment does not affect an information source (such as a base station), the gain of a reverse link can be generally set to be lower than that of a forward link, the reduction amplitude is uplink and downlink gain balance, the reduction amplitude can be generally set to be a numerical value about 5dB, and the adjustment can be carried out according to the specific link condition. At this time, in step 33, when the signal gain of the network coverage optimizing device is decreased or increased, assuming that the currently adjusted gain of the first link is, when the gain of the first link is adjusted, the gain of the second link may also be adjusted according to a preset uplink and downlink gain balance amount, where the first link is one of a forward link and a reverse link, and the second link is the other of the forward link and the reverse link.
Through the mode, the embodiment of the invention can automatically adjust the gain according to the power of the received information source signal, thereby reducing the network problem caused by parameter mismatching of manual setting, reducing the maintenance cost of equipment and improving the coverage effect of a network optimization system.
Furthermore, the gain control method in the embodiment of the present invention may further analyze different information sources, and provide corresponding gain control schemes for the different information sources. Specifically, before step 32, the embodiment of the present invention may obtain the format and the carrier number of the information source received by the network coverage optimization device; and determining a power interval corresponding to the information source according to the capability parameter of the network coverage optimization equipment and the system and carrier number of the information source.
The determination of the power interval may be performed in step 31, at this time, in step 31, the system, the number of carriers, and the pilot signal power of the information source received by the network coverage optimization device may be obtained, and the power interval corresponding to the information source may be determined according to the obtained system, number of carriers, and pilot signal power.
In the embodiment of the invention, the network coverage optimization equipment may receive a single-system signal source (single-mode signal source) of the same base station, may receive a plurality of signal sources (mixed-mode signal sources) of different systems of the same base station, and may receive signal sources of different base stations. How to determine the above power interval will be illustrated below for several possible source systems. In the following examples, the unit of power is dBm, the unit of gain is dB, Pmax is the maximum output power (in dBm) of the network coverage optimization device, Gmax is the maximum gain (in dB) of the network coverage optimization device, N is the number of carriers, 10logX is dB, and both the upper limit and the lower limit of the power interval are dBm.
A) The information source received by the network coverage optimization equipment is a single-mode information source of the same base station.
1) When the standard of the information source is a single GSM information source, determining the upper limit P1 of the power interval corresponding to the information source as Pmax-Gmax-10logN, and the lower limit P2 as P1-delta P1. Where Δ P1 is a first predetermined constant, such as 5dB, to avoid frequent adjustment of the device parameters.
2) And when the standard of the information source is a single LTE information source, determining the upper limit P1 of the power interval corresponding to the information source as Pmax-Gmax-10logN-10logM1 and the lower limit P2 as P1-delta P2. Where 1/M1 represents the ratio of the pilot signal power to the total power of the source, Δ P2 is a first predetermined constant, e.g., 5dB, to avoid frequent adjustments of device parameters.
Here, the pilot signal power is different in the total power ratio according to different bandwidths, taking 20MHz bandwidth as an example, the number of synchronization signals in 1200 subcarriers is 62, and then the input synchronization signal Power (PSS) is: Pmax-Gmax-10log (1200/62) dB, the upper limit P1 of the power interval corresponding to the information source is Pmax-Gmax-10log N-10log (1200/62) dB, and the lower limit P2 is P1-5 dB.
3) When the standard of the information source is a single WCDMA information source, determining the upper limit P1 of the power interval corresponding to the information source as Pmax-Gmax-10log N-10log M2, and determining the lower limit P2 as P1-delta P3. Where 1/M2 represents the ratio of pilot signal power in the single carrier case to the total power of the source, and Δ P3 is a third preset constant, e.g., 5dB, to avoid frequent adjustment of device parameters.
For example, if it is a single WCDMA source, the number of carriers is N, the pilot signal power is measured by 20% of the total power in case of single carrier, and the pilot signal power (RSCP) is Pmax-7dB, P1 ═ Pmax-Gmax-10logN-7, P2 ═ P1-5 dB.
B) And the information source received by the network coverage optimization equipment is a mixed-mode information source of the same base station.
At this time, selecting the pilot signal power with the most stable power and the target system from the pilot signal powers of the mixed-mode information sources, and respectively using the pilot signal power and the target system as a reference signal power and a reference target system; then, determining that the upper limit P1 of the power interval corresponding to the information source is Pmax-Gmax-10log M3-10log M4, and the lower limit P2 is P1-delta P4. Here, 1/M3 represents the ratio of the carrier power of the reference target system in the carrier power of the hybrid-analog source, 1/M4 represents the ratio of the reference signal power in the total power of the source of the reference target system, and Δ P4 is a fourth preset constant, for example, 5dB, to avoid frequent adjustment of device parameters.
Specifically, the most stable power determination method may be that the variation amplitude is smaller than a preset threshold and the duration is longest, and of course, the determination may be performed according to other methods, which is not specifically limited in this embodiment of the present invention.
For example, assuming that the signal source signals of the hybrid mode are LTE and WCDMA signals, and the signal source is the same base station signal source, the embodiment of the present invention may use PSS or RSCP power with stable power as the adjustment basis, and assuming that the LTE or WCDMA carrier power ratio is a fixed value and is-6 dB of the total power, then:
(1) based on the PSS of the LTE system: p1 ═ Pmax-Gmax-6-10log (1200/62);
(2) based on the RSCP power of the WCDMA system: P1-Pmax-Gmax-6-7-Pmax-Gmax-13.
C) The information source received by the network coverage optimization equipment comprises information sources of different base stations, or the information source received by the network coverage optimization equipment comprises information sources of multiple systems with unknown power ratios, or the stability of the power of the information source received by the network coverage optimization equipment does not meet the preset requirement.
At this time, the upper limit P1 of the power interval corresponding to the source may be determined to be Pmax-Gmax, and the lower limit P2 may be P1- Δ P5; wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, and Δ P5 is a fifth preset constant.
It can be seen that, if the information sources are different base station information sources, or the respective occupation ratios of the information source powers of different systems cannot be determined, or the system in the information source does not have stable PSS or RSCP signals, the embodiment of the present invention adjusts the information sources by using the input power detection value as a parameter adjustment basis, for example, when P1 is Pmax-Gmax, and P2 is Pmax-Gmax-20.
In addition, for the network coverage optimization device that receives information wirelessly, the network coverage optimization device needs to be able to automatically measure the isolation of the transmitting and receiving antenna, and preset the system maximum gain Gmax1 corresponding to the isolation, and at this time, when the network coverage optimization device is a wireless repeater, the gain adjusted in step 33 cannot exceed the system maximum gain Gmax 1.
In addition, in order to facilitate control management, the embodiment of the present invention may set an automatic control switch in the network coverage optimization device, where the switch may be a software switch or a hardware switch. When the switch is on, the process of the method is executed; when the switch is in the off state, the gain control is adjusted manually.
An embodiment of the present invention provides a network coverage optimization device shown in fig. 4. Referring to fig. 4, an embodiment of the present invention provides a schematic structural diagram of a network coverage optimizing device 40, which includes a transceiver 42 and a processor 41, where:
a transceiver 42, configured to obtain a pilot signal power of an information source received by the network coverage optimization device;
a processor 41, configured to determine whether to start a parameter adjustment function according to whether the pilot signal power exceeds a power interval corresponding to the information source; and when the parameter adjusting function is started, adjusting the gain of the network coverage optimizing equipment.
Preferably, the transceiver 42 is further configured to traverse an operating frequency band of the network coverage optimization device, detect a source signal, and obtain a pilot signal power of the source.
Preferably, the processor 41 is further configured to obtain a system and a carrier number of the information source received by the network coverage optimization device before determining whether to start a parameter adjustment function; and determining a power interval corresponding to the information source according to the capability parameter of the network coverage optimization equipment and the system and carrier number of the information source.
Preferably, the processor 41 is further configured to, when the information source received by the network coverage optimization device is a single-mode information source of the same base station:
if the standard of the information source is a single GSM information source, determining that the upper limit P1 of the power interval corresponding to the information source is Pmax-Gmax-10logN, and the lower limit P2 is P1-delta P1;
if the standard of the information source is a single LTE information source, determining that the upper limit P1 of a power interval corresponding to the information source is Pmax-Gmax-10logN-10logM1, and the lower limit P2 is P1-delta P2;
if the standard of the information source is a single WCDMA information source, determining that the upper limit P1 of the power interval corresponding to the information source is Pmax-Gmax-10log N-10log M2, and the lower limit P2 is P1-delta P3;
wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, N is the number of carriers, 1/M1 represents the ratio of pilot signal power in the total power of the information source, 1/M2 represents the ratio of pilot signal power in the total power of the information source under the condition of single carrier, and Δ P1, Δ P2, and Δ P3 are respectively a first preset constant, a second preset constant, and a third preset constant.
Preferably, the processor 41 is further configured to select, when the information source received by the network coverage optimization device is a mixed-mode information source of the same base station, a pilot signal power with the most stable power and a target standard to which the pilot signal power belongs from pilot signal powers of the mixed-mode information source, and respectively use the pilot signal power and the target standard as a reference signal power and a reference target standard; determining the upper limit P1 of the power interval corresponding to the information source as Pmax-Gmax-10log M3-10log M4, and the lower limit P2 as P1-delta P4; wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, 1/M3 represents the ratio of the carrier power of the reference target system in the carrier power of the hybrid-analog signal source, 1/M4 represents the ratio of the reference signal power in the total power of the signal source of the reference target system, and Δ P4 is a fourth preset constant.
Preferably, the processor 41 is further configured to determine that the upper limit P1 of the power interval corresponding to the information source is Pmax-Gmax, and the lower limit P2 is P1- Δ P5, when the information source received by the network coverage optimization equipment includes information sources of different base stations, or the information source received by the network coverage optimization equipment includes information sources of multiple systems whose power ratios are unknown, or the stability of the power of the information source received by the network coverage optimization equipment does not meet a predetermined requirement; wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, and Δ P5 is a fifth preset constant.
Preferably, the processor 41 is further configured to reduce the signal gain of the network coverage optimization device when the pilot signal power is greater than the upper limit of the power interval corresponding to the information source; and/or when the pilot signal power is smaller than the lower limit of the power interval corresponding to the information source, increasing the signal gain of the network coverage optimization equipment.
Preferably, the processor 41 is further configured to, when the signal gain of the network coverage optimization device is decreased or increased, adjust a gain of a first link, and adjust a gain of a second link according to a preset uplink and downlink gain balance, where the first link is one of a forward link and a reverse link, and the second link is the other of the forward link and the reverse link.
Referring to fig. 5, another schematic structural diagram of a network coverage optimizing device 500 according to an embodiment of the present invention includes: a processor 501, a transceiver 502, a memory 503, and a bus interface, wherein:
a transceiver 502, configured to obtain pilot signal power of a signal source received by the network coverage optimization device;
the processor 501 is configured to read a program in a memory, and execute the following processes: determining whether to start a parameter adjusting function according to whether the pilot signal power exceeds a power interval corresponding to the information source; and when the parameter adjusting function is started, adjusting the gain of the network coverage optimizing equipment.
In fig. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 501 and various circuits of memory represented by memory 503 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 502 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.
The processor 501 is responsible for managing the bus architecture and general processing, and the memory 503 may store data used by the processor 501 in performing operations.
Preferably, the transceiver 502 is further configured to traverse an operating frequency band of the network coverage optimization device, detect an information source signal, and obtain a pilot signal power of the information source.
Preferably, the processor 501 is further configured to read a program in a memory, and execute the following processes:
acquiring the system and the carrier number of the information source received by the network coverage optimization equipment;
and determining a power interval corresponding to the information source according to the capability parameter of the network coverage optimization equipment and the system and carrier number of the information source.
Preferably, the processor 501 is further configured to read a program in a memory, and execute the following processes:
when the standard of the information source is a single GSM information source, determining the upper limit P1 of the power interval corresponding to the information source as Pmax-Gmax-10logN, and the lower limit P2 as P1-delta P1;
when the standard of the information source is a single LTE information source, determining the upper limit P1 of a power interval corresponding to the information source as Pmax-Gmax-10logN-10logM1 and the lower limit P2 as P1-delta P2;
when the standard of the information source is a single WCDMA information source, determining the upper limit P1 of a power interval corresponding to the information source as Pmax-Gmax-10logN-10logM2 and the lower limit P2 as P1-delta P3;
wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, N is the number of carriers, 1/M1 represents the ratio of pilot signal power in the total power of the information source, 1/M2 represents the ratio of pilot signal power in the total power of the information source under the condition of single carrier, and Δ P1, Δ P2, and Δ P3 are respectively a first preset constant, a second preset constant, and a third preset constant.
Preferably, the processor 501 is further configured to read a program in a memory, and execute the following processes:
selecting the pilot signal power with the most stable power and the target system from the pilot signal powers of the mixed-mode information sources, and respectively using the pilot signal power and the target system as a reference signal power and a reference target system;
determining the upper limit P1 of the power interval corresponding to the information source as Pmax-Gmax-10log M3-10log M4, and the lower limit P2 as P1-delta P4;
wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, 1/M3 represents the ratio of the carrier power of the reference target system in the carrier power of the hybrid-analog signal source, 1/M4 represents the ratio of the reference signal power in the total power of the signal source of the reference target system, and Δ P4 is a fourth preset constant.
Preferably, the processor 501 is further configured to read a program in a memory, and execute the following processes:
determining the upper limit P1 of the power interval corresponding to the information source as Pmax-Gmax and the lower limit P2 as P1-delta P5; wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, and Δ P5 is a fifth preset constant.
Preferably, the processor 501 is further configured to read a program in a memory, and execute the following processes:
when the pilot signal power is larger than the upper limit of the power interval corresponding to the information source, reducing the signal gain of the network coverage optimization equipment; and/or the presence of a gas in the gas,
and when the pilot signal power is smaller than the lower limit of the power interval corresponding to the information source, increasing the signal gain of the network coverage optimization equipment.
Preferably, the processor 501 is further configured to read a program in a memory, and execute the following processes:
when the signal gain of the network coverage optimization device is reduced or increased, adjusting the gain of a first link, and adjusting the gain of a second link according to a preset uplink and downlink gain balance amount, wherein the first link is one of a forward link and a reverse link, and the second link is the other one of the forward link and the reverse link.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (18)
1. A gain control method of a network coverage optimization device is characterized by comprising the following steps:
acquiring the pilot signal power of the information source received by the network coverage optimization equipment;
determining whether to start a parameter adjusting function according to whether the pilot signal power exceeds a power interval corresponding to the information source;
and when the parameter adjusting function is started, adjusting the gain of the network coverage optimizing equipment.
2. The method of claim 1, wherein the step of obtaining the pilot signal power of the source received by the network coverage optimization device comprises:
and traversing the working frequency band of the network coverage optimization equipment, detecting the signal source signal and obtaining the pilot signal power of the signal source.
3. The method of claim 1, wherein prior to the step of determining whether to initiate a parameter adjustment function, the method further comprises:
acquiring the system and the carrier number of the information source received by the network coverage optimization equipment;
and determining a power interval corresponding to the information source according to the capability parameter of the network coverage optimization equipment and the system and carrier number of the information source.
4. The method as claimed in claim 3, wherein when the signal source received by the network coverage optimization device is a single-mode signal source of the same base station, the step of determining the power interval corresponding to the signal source according to the capability parameter of the network coverage optimization device and the format and carrier number of the signal source includes:
when the standard of the information source is a single GSM information source, determining the upper limit P1 of the power interval corresponding to the information source as Pmax-Gmax-10logN, and the lower limit P2 as P1-delta P1;
when the standard of the information source is a single LTE information source, determining the upper limit P1 of a power interval corresponding to the information source as Pmax-Gmax-10logN-10logM1 and the lower limit P2 as P1-delta P2;
when the standard of the information source is a single WCDMA information source, determining the upper limit P1 of a power interval corresponding to the information source as Pmax-Gmax-10logN-10logM2 and the lower limit P2 as P1-delta P3;
wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, N is the number of carriers, 1/M1 represents the ratio of pilot signal power in the total power of the information source, 1/M2 represents the ratio of pilot signal power in the total power of the information source under the condition of single carrier, and Δ P1, Δ P2, and Δ P3 are respectively a first preset constant, a second preset constant, and a third preset constant.
5. The method as claimed in claim 3, wherein when the signal source received by the network coverage optimization device is a mixed-mode signal source of the same base station, the step of determining the power interval corresponding to the signal source according to the capability parameter of the network coverage optimization device and the system and carrier number of the signal source comprises:
selecting the pilot signal power with the most stable power and the target system from the pilot signal powers of the mixed-mode information sources, and respectively using the pilot signal power and the target system as a reference signal power and a reference target system;
determining the upper limit P1 of the power interval corresponding to the information source as Pmax-Gmax-10log M3-10log M4, and the lower limit P2 as P1-delta P4;
wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, 1/M3 represents the ratio of the carrier power of the reference target system in the carrier power of the hybrid-analog signal source, 1/M4 represents the ratio of the reference signal power in the total power of the signal source of the reference target system, and Δ P4 is a fourth preset constant.
6. The method as claimed in claim 3, wherein when the signal source received by the network coverage optimization device includes signal sources of different base stations, or the signal source received by the network coverage optimization device includes signal sources of multiple systems whose power ratio is unknown, or the stability of the power of the signal source received by the network coverage optimization device does not meet a predetermined requirement, the step of determining the power interval corresponding to the signal source according to the capability parameter of the network coverage optimization device and the systems and the number of carriers of the signal source includes:
determining the upper limit P1 of the power interval corresponding to the information source as Pmax-Gmax and the lower limit P2 as P1-delta P5; wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, and Δ P5 is a fifth preset constant.
7. The method of any of claims 1 to 6, wherein the step of adjusting the gain of the network coverage optimization device when the parameter adjustment function is initiated comprises:
when the pilot signal power is larger than the upper limit of the power interval corresponding to the information source, reducing the signal gain of the network coverage optimization equipment; and/or the presence of a gas in the gas,
and when the pilot signal power is smaller than the lower limit of the power interval corresponding to the information source, increasing the signal gain of the network coverage optimization equipment.
8. The method of claim 7, wherein the step of adjusting the gain of the network coverage optimization device when the parameter adjustment function is activated further comprises:
when the signal gain of the network coverage optimization device is reduced or increased, adjusting the gain of a first link, and adjusting the gain of a second link according to a preset uplink and downlink gain balance amount, wherein the first link is one of a forward link and a reverse link, and the second link is the other one of the forward link and the reverse link.
9. A network coverage optimization device, comprising:
the transceiver is used for acquiring the pilot signal power of the information source received by the network coverage optimization equipment;
the processor is used for determining whether to start a parameter adjusting function according to whether the pilot signal power exceeds the power interval corresponding to the information source; and when the parameter adjusting function is started, adjusting the gain of the network coverage optimizing equipment.
10. The network coverage optimization device of claim 9,
the transceiver is further configured to traverse a working frequency band of the network coverage optimization device, detect an information source signal, and obtain pilot signal power of the information source.
11. The network coverage optimization device of claim 9,
the processor is further configured to obtain a standard and a carrier number of the information source received by the network coverage optimization device before determining whether to start a parameter adjustment function; and determining a power interval corresponding to the information source according to the capability parameter of the network coverage optimization equipment and the system and carrier number of the information source.
12. The network coverage optimization device of claim 11,
the processor is further configured to, when the information source received by the network coverage optimization device is a single-mode information source of the same base station:
if the standard of the information source is a single GSM information source, determining that the upper limit P1 of the power interval corresponding to the information source is Pmax-Gmax-10logN, and the lower limit P2 is P1-delta P1;
if the standard of the information source is a single LTE information source, determining that the upper limit P1 of a power interval corresponding to the information source is Pmax-Gmax-10logN-10logM1, and the lower limit P2 is P1-delta P2;
if the standard of the information source is a single WCDMA information source, determining that the upper limit P1 of the power interval corresponding to the information source is Pmax-Gmax-10log N-10log M2, and the lower limit P2 is P1-delta P3;
wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, N is the number of carriers, 1/M1 represents the ratio of pilot signal power in the total power of the information source, 1/M2 represents the ratio of pilot signal power in the total power of the information source under the condition of single carrier, and Δ P1, Δ P2, and Δ P3 are respectively a first preset constant, a second preset constant, and a third preset constant.
13. The network coverage optimization device of claim 11,
the processor is further configured to select a pilot signal power with the most stable power and an associated target standard from pilot signal powers of the mixed-mode information sources when the information sources received by the network coverage optimization device are mixed-mode information sources of the same base station, and use the pilot signal power and the associated target standard as a reference signal power and a reference target standard respectively; determining the upper limit P1 of the power interval corresponding to the information source as Pmax-Gmax-10log M3-10log M4, and the lower limit P2 as P1-delta P4; wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, 1/M3 represents the ratio of the carrier power of the reference target system in the carrier power of the hybrid-analog signal source, 1/M4 represents the ratio of the reference signal power in the total power of the signal source of the reference target system, and Δ P4 is a fourth preset constant.
14. The network coverage optimization device of claim 11,
the processor is further configured to determine that an upper limit P1 of a power interval corresponding to the information source is Pmax-Gmax and a lower limit P2 is P1- Δ P5 when the information source received by the network coverage optimization equipment includes information sources of different base stations, or the information source received by the network coverage optimization equipment includes information sources of multiple systems whose power occupation ratios are unknown, or the stability of the power of the information source received by the network coverage optimization equipment does not meet a predetermined requirement; wherein Pmax is the maximum output power of the network coverage optimization device, Gmax is the maximum gain of the network coverage optimization device, and Δ P5 is a fifth preset constant.
15. The network coverage optimization device of any one of claims 9 to 14,
the processor is further configured to reduce a signal gain of the network coverage optimization device when the pilot signal power is greater than an upper limit of a power interval corresponding to the information source; and/or when the pilot signal power is smaller than the lower limit of the power interval corresponding to the information source, increasing the signal gain of the network coverage optimization equipment.
16. The network coverage optimization device of claim 15,
the processor is further configured to, when the signal gain of the network coverage optimization device is reduced or increased, adjust a gain of a first link, and adjust a gain of a second link according to a preset uplink and downlink gain balance amount, where the first link is one of a forward link and a reverse link, and the second link is the other of the forward link and the reverse link.
17. A network coverage optimization device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method according to any of claims 1 to 8.
18. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 8.
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