CN111757332B - Network coverage optimizing equipment and gain control method thereof - Google Patents
Network coverage optimizing equipment and gain control method thereof Download PDFInfo
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- CN111757332B CN111757332B CN201910251944.9A CN201910251944A CN111757332B CN 111757332 B CN111757332 B CN 111757332B CN 201910251944 A CN201910251944 A CN 201910251944A CN 111757332 B CN111757332 B CN 111757332B
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Abstract
The invention provides network coverage optimization equipment and a gain control method thereof. According to the gain control method of the network coverage optimization equipment, the gain control can be automatically performed according to the information source power received by the network coverage optimization equipment. The invention avoids the network problem caused by parameter mismatch easily when the parameters are set manually, reduces the maintenance cost of 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, the signal coverage optimization system enables the coverage area of a base station information source to be enlarged by transparent transmission and amplification of signals of an operator base station, and achieves coverage optimization of an operator network. In the wireless coverage scheme in the prior art, the application of active network coverage optimization equipment and a passive antenna feed system is increasing.
In practical application, different coverage products can be selected according to the information source condition of a specific scene, mobile network coverage optimization can be realized through correct start-up setting of network coverage optimization equipment, and meanwhile, interference to an information source base station is avoided. However, how to ensure that the manual start-up setting is correct, and how to intelligently adapt to the information source change by setting equipment parameters when the information source changes is a problem to be solved.
One solution in the prior art is to instruct the engineering personnel to correctly perform the start-up parameter setting through technical training, but this is not an efficient solution, and the parameter setting needs to be manually re-performed when the information source is changed, which increases the labor cost and has a 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 performing gain control according to source sources on a network coverage optimization device side, thereby avoiding network problems caused by parameter mismatch due to manual parameter setting, reducing maintenance cost of the device, and improving 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 pilot signal power of a signal 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 adjustment function is started, adjusting the gain of the network coverage optimization equipment.
Preferably, the step of obtaining pilot signal power of a source received by the network coverage optimization device includes:
And traversing the working frequency band of the network coverage optimization equipment, detecting the signal of the information source, and obtaining the pilot signal power of the information 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, the system and the carrier number of the information source.
Preferably, when the source received by the network coverage optimization device is a Shan Moxin source of the same base station, the step of determining, according to the capability parameter of the network coverage optimization device and the format and carrier number of the source, a power interval corresponding to the source includes:
when the standard of the information source is a single GSM information source, determining that the upper limit P1 of a power interval corresponding to the information source is Pmax-Gmax-10log N and the lower limit P2 is P1-delta P1;
determining that the upper limit P1 of a power interval corresponding to the information source is Pmax-Gmax-10log N-10log M1 and the lower limit P2 is P1-delta P2 when the system of the information source is a single LTE information source;
when the system of the information source is a single WCDMA information source, determining that the upper limit P1 of a 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 carrier number, 1/M1 represents the duty ratio of pilot signal power in the total power of the source, 1/M2 represents the duty ratio of pilot signal power in the total power of the source under the single carrier condition, and Δp1, Δp2 and Δp3 are a first preset constant, a second preset constant and a third preset constant, respectively.
Preferably, when the source received by the network coverage optimization device is a mixed mode source of the same base station, the step of determining a power interval corresponding to the source according to the capability parameter of the network coverage optimization device and the system and carrier number of the source includes:
selecting pilot signal power with the most stable power and a target system to which the pilot signal power belongs from pilot signal power of the mixed mode signal source as reference signal power and reference target system 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 duty ratio of the carrier power of the reference target system in the carrier power of the mixed mode signal source, 1/M4 represents the duty ratio of the reference signal power in the total power of the signal source of the reference target system, and Δp4 is a fourth preset constant.
Preferably, when the source received by the network coverage optimization device includes a source of a different base station, or the source received by the network coverage optimization device includes a source of a plurality of systems with unknown power ratio, or the stability of the power of the source received by the network coverage optimization device does not meet a predetermined requirement, the step of determining, according to the capability parameter of the network coverage optimization device and the system and carrier number of the source, a power interval corresponding to the 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 optimizing device, gmax is the maximum gain of the network coverage optimizing device, and Δp5 is a fifth preset constant.
Preferably, when the parameter adjustment function is started, the step of adjusting the gain of the network coverage optimization 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 number of the groups of groups,
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 adjustment function is started, the step of adjusting the gain of the network coverage optimization device further includes:
and when the signal gain of the network coverage optimization equipment 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 of the forward link and the reverse link.
The embodiment of the invention also provides a network coverage optimizing device, which comprises:
a transceiver for acquiring pilot signal power of a signal source received by the network coverage optimization device;
the processor is used for determining whether to start a parameter adjustment function according to whether the pilot signal power exceeds a power interval corresponding to the information source; and adjusting the gain of the network coverage optimization device when the parameter adjustment function is started.
Preferably, the transceiver is further configured to traverse an operating frequency band of the network coverage optimization device, detect a source signal, and obtain pilot signal power of the 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 the parameter adjustment function; and determining a power interval corresponding to the information source according to the capability parameter of the network coverage optimization equipment, the system and the carrier number of the information source.
Preferably, the processor is further configured to, when the source received by the network coverage optimization device is a Shan Moxin source of the same base station:
if the system of the information source is a single GSM information source, determining that the upper limit P1 of a power interval corresponding to the information source is Pmax-Gmax-10log N and the lower limit P2 is P1-delta P1;
if the system 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-10log N-10log M1 and the lower limit P2 is P1-delta P2;
if the system of the information source is a single WCDMA information source, determining that the upper limit P1 of a 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 carrier number, 1/M1 represents the duty ratio of pilot signal power in the total power of the source, 1/M2 represents the duty ratio of pilot signal power in the total power of the source under the single carrier condition, and Δp1, Δp2 and Δp3 are a first preset constant, a second preset constant and a third preset constant, respectively.
Preferably, the processor is further configured to select, when the source received by the network coverage optimization device is a mixed mode source of the same base station, pilot signal power with the most stable power and a target system to which the pilot signal power belongs from pilot signal powers of the mixed mode source, as reference signal power and a reference target system 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 duty ratio of the carrier power of the reference target system in the carrier power of the mixed mode signal source, 1/M4 represents the duty ratio of the reference signal power in the total power of the signal source of the reference target system, and Δp4 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 source is Pmax-Gmax and a lower limit P2 is P1- Δp5 when the source received by the network coverage optimization device includes sources of different base stations, or the source received by the network coverage optimization device includes sources of multiple systems with unknown power ratio, or the stability of the power of the source received by the network coverage optimization device does not meet a predetermined requirement; wherein Pmax is the maximum output power of the network coverage optimizing device, gmax is the maximum gain of the network coverage optimizing device, and Δp5 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 source; and/or increasing the signal gain of the network coverage optimization device when the pilot signal power is less than the lower limit of the power interval corresponding to the information source.
Preferably, the processor is further configured to adjust a gain of a first link when reducing or increasing a signal gain of the network coverage optimization device, and adjust a gain of a second link according to a preset uplink-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.
The embodiment of the invention also provides a network coverage optimizing device, which comprises: a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method of gain control of a network coverage optimization device as described above.
Embodiments of the present invention also provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method as described above.
The network coverage optimization device and the gain control method thereof provided by the embodiment of the invention enable the network coverage optimization device to intelligently and automatically perform gain control according to the information source, and automatically adjust the device parameters according to the change of the information source, thereby reducing network problems caused by parameter mismatch set manually, reducing the maintenance cost of the device and improving the coverage effect of the network optimization system.
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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 designate like parts throughout the figures. In the drawings:
Fig. 1 is an application scenario schematic diagram 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 a gain control method of a network coverage optimization device according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a gain control method of a network coverage optimization device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a network coverage optimization device according to an embodiment of the present invention;
fig. 5 is another schematic structural diagram of a network coverage optimization 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 present invention are shown in the drawings, it should be understood that the present invention may 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, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of being practiced otherwise than as specifically illustrated and described. 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. "and/or" in the specification and claims means at least one of the connected objects.
The following description provides examples and does not limit the scope, applicability, or configuration as 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. Additionally, features described with reference to certain examples may be combined in other examples.
The embodiment of the invention provides a network coverage optimization device and a gain control method thereof, which are used for performing gain control on the network coverage optimization device side according to source sources, so that the network problem that parameters are easy to be set manually and are caused by parameter mismatch can be avoided, the maintenance cost of the device is reduced, and the coverage effect of a network optimization system is improved.
The network coverage optimization device of the embodiment of the invention comprises, but is not limited to, digital repeater, optical fiber distributed system, micro repeater, trunk amplifier and other devices. These devices receive signals from sources (e.g., base stations) and transmit them to coverage enhancement units, and receive signals from coverage enhancement units and transmit them back to the sources, either wirelessly or by wire. The coverage enhancement unit comprises a passive antenna feed system, a remote unit, a coverage antenna and other devices.
For example, taking a digital repeater as an example, the existing digital repeater mainly includes an optical fiber repeater and a wireless repeater, fig. 1 and fig. 2 show two application scenarios of a gain control method of a network coverage optimization device according to an embodiment of the present invention, where fig. 1 is a distributed optical fiber repeater, and fig. 2 is a stand-alone wireless repeater. In this context, the digital repeater is taken as an example, and it should be noted that the present invention is not limited to the application scenario of the digital repeater, and may be applied to other network coverage optimization devices besides the digital repeater.
As shown in fig. 1, the optical fiber repeater includes a radio frequency Access Unit (RAU) and a high power remote Unit (HRU, high power Remote Unit). In a forward link (a downlink from a signal source to a digital repeater), a radio frequency access unit enters a fiber repeater through a wired coupling mode with downlink radio frequency signals of the signal sources such as GSM, NB-IoT, FDD-LTE and the like, converts the downlink radio frequency signals into digital signals, converts the digital signals into optical signals through photoelectric conversion, and transmits the optical signals to a remote unit; the high-power remote unit converts the digital signals sent 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 the reverse link (from the digital repeater to the source), the high-power remote unit converts the wireless received uplink radio frequency signal into a digital signal and transmits the digital signal to the radio frequency access unit; the radio frequency access unit converts the digital signal uploaded by the remote unit into an uplink radio frequency signal, and the uplink radio frequency signal is transmitted back to the information source in a wired mode. The radio frequency access unit supports the remote monitoring management function for the remote unit.
As shown in fig. 2, the digital wireless repeater enters the digital wireless repeater through wireless coupling, converts the low-noise amplified downlink radio frequency signals of the information sources such as GSM, NB-IoT, FDD-LTE and the like into digital signals, then performs digital processing, and then converts the digital signals into radio frequency signals to realize wireless coverage of the signals such as GSM, NB-IoT, FDD-LTE and the like after power amplification; meanwhile, the 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/power amplification.
Fiber optic distributed systems generally include: the system comprises a radio frequency access unit connected with a signal source, an extension unit connected with the access unit and a plurality of remote units connected with the extension unit. The structure of the fiber optic distributed system is similar to the digital repeater shown in fig. 1, except that an expansion unit is added to the radio access unit and the remote unit, thereby expanding the access capability and 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, respectively.
For details of the micro repeater and the main amplifier, reference may be made to the related description of the prior art, and for the sake of economy, details are not repeated herein.
Referring to fig. 3, an embodiment of the present invention provides a gain control method for a network coverage optimization device, where signals of all carrier channels are traversed, each carrier signal source is analyzed, each signal source system and power size are recorded, and device parameters of the network coverage optimization device are optimally configured through an adaptive algorithm, so as to ensure that the network coverage optimization device works in an optimal state.
Referring to fig. 3, the method includes:
and step 31, obtaining the pilot signal power of the information source received by the network coverage optimization equipment.
Here, the pilot signal power of the source may be obtained by traversing the operating band of the network coverage optimization device, detecting the source signal. Through the above step 31, the embodiment of the present invention realizes the function of detecting the information source, and by traversing the signals in the working frequency band of the network coverage optimization device, the information source system, the carrier number and the pilot signal power of different signals received by the network coverage optimization device can be determined. For example, for the GSM system, the pilot signal power is typically the broadcast channel (BCCH) power, the LTE communication system is then the Primary Synchronization Signal (PSS) power, and the WCDMA communication system is then the pilot power (RSCP).
And step 32, determining whether to start a parameter adjustment 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 start the parameter adjustment function according to the strength of the pilot signal power (or the total power of the input signal) input by the network coverage optimization device in the current forward link. Specifically, the starting parameter adjusting function may be that the power intensity of the input pilot signal is higher than the upper line of the power interval corresponding to the information source or lower than the lower limit of the power interval corresponding to the information source due to the change of the carrier frequency or the transmission path of the information source.
And step 33, adjusting the gain of the network coverage optimization equipment when the parameter adjustment function is started.
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 less than the lower limit of the power interval corresponding to the information source, the signal gain of the network coverage optimization device can be increased.
In addition, in order to ensure that the uplink noise floor of the network coverage optimization device does not affect the information source (such as the base station), the reverse link gain can be set to be lower than the forward link gain, the reduction amplitude is the uplink and downlink gain balance, and the reduction amplitude can be set to be a value of about 5dB generally and can be adjusted according to the specific link condition. At this time, when the signal gain of the network coverage optimization device is reduced or increased in step 33, assuming that the gain of the first link is currently adjusted, the gain of the second link may also be adjusted according to a preset uplink/downlink gain balance amount when the gain of the first link is adjusted, where the first link is one of the forward link and the 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 mismatch set manually, reducing the maintenance cost of equipment and improving the coverage effect of a network optimization system.
Furthermore, according to the gain control method provided by the embodiment of the invention, different information sources can be analyzed, and corresponding gain control schemes are provided for the different information sources. Specifically, before the step 32, the embodiment of the present invention may acquire the format and the carrier number of the 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, the system and the carrier number of the information source.
The determining of the power interval may be performed in the step 31, and in this case, in step 31, the system, the carrier number, and the pilot signal power of the source received by the network coverage optimization device may be obtained, and the power interval corresponding to the source may be determined according to the obtained system, carrier number, and pilot signal power.
In the embodiment of the invention, the network coverage optimization device may receive a single-system source (Shan Moxin source) of the same base station, may receive multiple sources (mixed mode sources) of different systems of the same base station, and may also receive sources of different base stations. How to determine the power interval will be illustrated below for several possible source schemes. 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, the unit of 10log x is dB, and the units of the upper limit and the lower limit of the power interval are both dBm.
A) The source received by the network coverage optimization equipment is Shan Moxin source of the same base station.
1) When 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-10log N and the lower limit P2 is P1-delta P1. Wherein Δp1 is a first preset constant, for example 5dB, to avoid frequent adjustments of the device parameters.
2) And determining the upper limit P1 of a power interval corresponding to the information source as Pmax-Gmax-10log N-10log M1 and the lower limit P2 as P1-delta P2 when the system of the information source is a single LTE information source. Where 1/M1 represents the duty cycle of pilot signal power in the total power of the source, Δp2 is a first preset constant, e.g. 5dB, to avoid frequent adjustment of device parameters.
Here, the pilot signal power is different in total power ratio according to different bandwidths, taking 20MHz bandwidth as an example, 62 synchronization signals in 1200 subcarriers, and then the input synchronization signal Power (PSS) is: and if Pmax-Gmax-10log (1200/62) dB, the upper limit P1 of the power interval corresponding to the information source is Pmax-Gmax-10log (1200/62) dB, and the lower limit P2=P1-5 dB.
3) When 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. Where 1/M2 represents the ratio of pilot signal power in the single carrier case to the total power of the source, Δp3 is a third preset constant, e.g. 5dB, to avoid frequent adjustment of device parameters.
For example, if the carrier number is N and the pilot signal power is measured by 20% of the total power in the single carrier case, the pilot signal power (RSCP) is Pmax-7dB, then P1- =pmax-Gmax-10 log N-7 and p2=p1-5 dB.
B) The information sources received by the network coverage optimization equipment are mixed mode information sources of the same base station.
At this time, from the pilot signal power of the mixed mode signal source, selecting the pilot signal power with the most stable power and the target system to which the pilot signal power belongs as reference signal power and reference target system respectively; then, determining the upper limit P1 of the power interval corresponding to the source as Pmax-Gmax-10log M3-10log M4 and the lower limit P2 as P1-delta P4. Here, 1/M3 represents the duty ratio of the carrier power of the reference target system in the carrier power of the mixed mode signal source, 1/M4 represents the duty ratio of the reference signal power in the total power of the signal source of the reference target system, and Δp4 is a fourth preset constant, for example, 5dB, so as to avoid frequent adjustment of device parameters.
Specifically, the most stable power determination mode may be that the variation amplitude is smaller than a preset threshold and the duration is longest, and of course, the embodiment of the present invention may also determine in other manners, which is not limited in particular.
For example, assuming that the source signals of the mixed mode are LTE and WCDMA signals and the sources are the same base station source, the embodiment of the present invention may use PSS or RSCP power with relatively stable power as an adjustment basis, and assuming that the carrier power ratio of LTE or WCDMA is a fixed value and is the total power-6 dB, then:
(1) Based on the PSS of the LTE system: p1=pmax-Gmax-6-10 log (1200/62);
(2) Based on the RSCP power of the WCDMA system: p1=pmax-Gmax-6-7=pmax-Gmax-13.
C) The information sources received by the network coverage optimization equipment comprise information sources of different base stations, or the information sources received by the network coverage optimization equipment comprise information sources of a plurality of systems with unknown power ratio, or the stability of the power of the information sources received by the network coverage optimization equipment does not meet the preset requirement.
At this time, it may be determined that the upper limit P1 of the power interval corresponding to the source is Pmax-Gmax, and the lower limit P2 is P1- Δp5; wherein Pmax is the maximum output power of the network coverage optimizing device, gmax is the maximum gain of the network coverage optimizing device, and Δp5 is a fifth preset constant.
It can be seen that, if the source is a source of a different base station, or the respective duty ratios of the source powers of different systems cannot be determined, or the system in the source has no stable PSS or RSCP signals, the embodiment of the present invention adjusts by using the input power detection value as a parameter adjustment basis, for example, at this time p1=pmax-Gmax, p2= =pmax-Gmax-20.
In addition, it should be noted that, for the network coverage optimization device that receives the signal source through the wireless manner, the network coverage optimization device needs to automatically determine the isolation of the transceiver antenna, and preset the system maximum gain Gmax1 corresponding to the isolation, where the gain adjusted in step 33 should not exceed the system maximum gain Gmax1 when the network coverage optimization device is a wireless repeater.
In addition, for convenience of control and management, an automatic control switch can be arranged in the network coverage optimization equipment, and the switch can be a software switch or a hardware switch. When the state of the switch is on, executing the flow of the method; when the switch is in the off state, the gain control is manually adjusted.
The embodiment of the invention provides network coverage optimization equipment shown in fig. 4. Referring to fig. 4, an embodiment of the present invention provides a schematic structural diagram of a network coverage optimization device 40, including a transceiver 42 and a processor 41, wherein:
a transceiver 42 for acquiring pilot signal power of a 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 source; and adjusting the gain of the network coverage optimization device when the parameter adjustment function is started.
Preferably, the transceiver 42 is further configured to traverse the 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 acquire a format and a carrier number of the source received by the network coverage optimization device before determining whether to start the parameter adjustment function; and determining a power interval corresponding to the information source according to the capability parameter of the network coverage optimization equipment, the system and the carrier number of the information source.
Preferably, the processor 41 is further configured to, when the source received by the network coverage optimization device is a Shan Moxin source of the same base station:
if the system of the information source is a single GSM information source, determining that the upper limit P1 of a power interval corresponding to the information source is Pmax-Gmax-10log N and the lower limit P2 is P1-delta P1;
if the system 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-10log N-10log M1 and the lower limit P2 is P1-delta P2;
if the system of the information source is a single WCDMA information source, determining that the upper limit P1 of a 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 carrier number, 1/M1 represents the duty ratio of pilot signal power in the total power of the source, 1/M2 represents the duty ratio of pilot signal power in the total power of the source under the single carrier condition, and Δp1, Δp2 and Δp3 are a first preset constant, a second preset constant and a third preset constant, respectively.
Preferably, the processor 41 is further configured to select, when the source received by the network coverage optimization device is a mixed mode source of the same base station, pilot signal power with the most stable power and a target system to which the pilot signal power belongs from pilot signal powers of the mixed mode source, as the reference signal power and the reference target system 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 duty ratio of the carrier power of the reference target system in the carrier power of the mixed mode signal source, 1/M4 represents the duty ratio of the reference signal power in the total power of the signal source of the reference target system, and Δp4 is a fourth preset constant.
Preferably, the processor 41 is further configured to determine that, when the source received by the network coverage optimization device includes a source of a different base station, or the source received by the network coverage optimization device includes a source of a plurality of systems with unknown power ratio, or the stability of the power of the source received by the network coverage optimization device does not meet a predetermined requirement, an upper limit P1 of a power interval corresponding to the source is Pmax-Gmax, and a lower limit P2 is P1- Δp5; wherein Pmax is the maximum output power of the network coverage optimizing device, gmax is the maximum gain of the network coverage optimizing device, and Δp5 is a fifth preset constant.
Preferably, the processor 41 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 source; and/or increasing the signal gain of the network coverage optimization device when the pilot signal power is less than the lower limit of the power interval corresponding to the information source.
Preferably, the processor 41 is further configured to adjust a gain of a first link when reducing or increasing a signal gain of the network coverage optimization device, and adjust a gain of a second link according to a preset uplink-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, an embodiment of the present invention provides another schematic structural diagram of a network coverage optimization device 500, including: 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 source received by the network coverage optimization device;
the processor 501 is configured to read a program in the memory, and perform the following procedures: 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 adjustment function is started, adjusting the gain of the network coverage optimization equipment.
In fig. 5, a bus architecture may comprise any number of interconnected buses and bridges, with one or more processors, represented in particular by processor 501, and various circuits of memory, represented by memory 503, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 502 may be a number of elements, i.e. comprising a transmitter and a receiver, providing 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 the operating frequency band of the network coverage optimization device, detect a signal of the source, and obtain a pilot signal power of the source.
Preferably, the processor 501 is further configured to read a program in the memory, and perform the following procedures:
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, the system and the carrier number of the information source.
Preferably, the processor 501 is further configured to read a program in the memory, and perform the following procedures:
when the standard of the information source is a single GSM information source, determining that the upper limit P1 of a power interval corresponding to the information source is Pmax-Gmax-10log N and the lower limit P2 is P1-delta P1;
determining that the upper limit P1 of a power interval corresponding to the information source is Pmax-Gmax-10log N-10log M1 and the lower limit P2 is P1-delta P2 when the system of the information source is a single LTE information source;
when the system of the information source is a single WCDMA information source, determining that the upper limit P1 of a 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 carrier number, 1/M1 represents the duty ratio of pilot signal power in the total power of the source, 1/M2 represents the duty ratio of pilot signal power in the total power of the source under the single carrier condition, and Δp1, Δp2 and Δp3 are a first preset constant, a second preset constant and a third preset constant, respectively.
Preferably, the processor 501 is further configured to read a program in the memory, and perform the following procedures:
selecting pilot signal power with the most stable power and a target system to which the pilot signal power belongs from pilot signal power of the mixed mode signal source as reference signal power and reference target system 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 duty ratio of the carrier power of the reference target system in the carrier power of the mixed mode signal source, 1/M4 represents the duty ratio of the reference signal power in the total power of the signal source of the reference target system, and Δp4 is a fourth preset constant.
Preferably, the processor 501 is further configured to read a program in the memory, and perform the following procedures:
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 optimizing device, gmax is the maximum gain of the network coverage optimizing device, and Δp5 is a fifth preset constant.
Preferably, the processor 501 is further configured to read a program in the memory, and perform the following procedures:
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 number of the groups of groups,
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 the memory, and perform the following procedures:
and when the signal gain of the network coverage optimization equipment 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 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 solution. 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 will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to achieve the purpose of the embodiment of the present invention.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in 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 this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (16)
1. A gain control method for a network coverage optimization device, comprising:
acquiring pilot signal power of a signal 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;
when a parameter adjustment function is started, adjusting the gain of the network coverage optimization equipment;
when the parameter adjustment function is started, the step of adjusting the gain of the network coverage optimization device comprises the following steps:
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 number of the groups of groups,
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.
2. The method of claim 1, wherein the step of obtaining pilot signal power for 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 of the information source, and obtaining the pilot signal power of the information source.
3. The method of claim 1, wherein prior to the step of determining whether to initiate 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, the system and the carrier number of the information source.
4. The method of claim 3, wherein when the source received by the network coverage optimization device is a Shan Moxin source of the same base station, the step of determining the power interval corresponding to the source according to the capability parameter of the network coverage optimization device and the format and the carrier number of the source includes:
when the standard of the information source is a single GSM information source, determining that the upper limit P1 of a power interval corresponding to the information source is Pmax-Gmax-10log N and the lower limit P2 is P1-delta P1;
Determining that the upper limit P1 of a power interval corresponding to the information source is Pmax-Gmax-10log N-10log M1 and the lower limit P2 is P1-delta P2 when the system of the information source is a single LTE information source;
when the system of the information source is a single WCDMA information source, determining that the upper limit P1 of a 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 carrier number, 1/M1 represents the duty ratio of pilot signal power in the total power of the source, 1/M2 represents the duty ratio of pilot signal power in the total power of the source under the single carrier condition, and Δp1, Δp2 and Δp3 are a first preset constant, a second preset constant and a third preset constant, respectively.
5. The method of claim 3, wherein when the source received by the network coverage optimization device is a mixed mode source of the same base station, the step of determining the power interval corresponding to the source according to the capability parameter of the network coverage optimization device and the system and the carrier number of the source includes:
selecting pilot signal power with the most stable power and a target system to which the pilot signal power belongs from pilot signal power of the mixed mode signal source as reference signal power and reference target system 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 duty ratio of the carrier power of the reference target system in the carrier power of the mixed mode signal source, 1/M4 represents the duty ratio of the reference signal power in the total power of the signal source of the reference target system, and Δp4 is a fourth preset constant.
6. The method of claim 3, wherein when the source received by the network coverage optimization device includes a source of a different base station, or the source received by the network coverage optimization device includes a source of a plurality of formats with unknown power duty ratio, or the stability of the power of the source received by the network coverage optimization device does not meet a predetermined requirement, the step of determining, according to the capability parameter of the network coverage optimization device and the formats and carrier numbers of the source, a power interval corresponding to the 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 optimizing device, gmax is the maximum gain of the network coverage optimizing device, and Δp5 is a fifth preset constant.
7. The method of claim 1, wherein the step of adjusting the gain of the network coverage optimization device when the parameter adjustment function is initiated, further comprises:
and when the signal gain of the network coverage optimization equipment 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 of the forward link and the reverse link.
8. A network coverage optimization device, comprising:
a transceiver for acquiring pilot signal power of a signal source received by the network coverage optimization device;
the processor is used for determining whether to start a parameter adjustment function according to whether the pilot signal power exceeds a power interval corresponding to the information source; when the parameter adjustment function is started, the gain of the network coverage optimization equipment is adjusted;
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 increasing the signal gain of the network coverage optimization device when the pilot signal power is less than the lower limit of the power interval corresponding to the information source.
9. The network coverage optimization device of claim 8, wherein,
the transceiver is further configured to traverse an operating frequency band of the network coverage optimization device, detect a source signal, and obtain pilot signal power of the source.
10. The network coverage optimization device of claim 8, wherein,
the processor is further configured to obtain a format and a carrier number of the information source received by the network coverage optimization device before determining whether to start the parameter adjustment function; and determining a power interval corresponding to the information source according to the capability parameter of the network coverage optimization equipment, the system and the carrier number of the information source.
11. The network coverage optimization device of claim 8, wherein,
the processor is further configured to, when the source received by the network coverage optimization device is a Shan Moxin source of the same base station:
if the system of the information source is a single GSM information source, determining that the upper limit P1 of a power interval corresponding to the information source is Pmax-Gmax-10log N and the lower limit P2 is P1-delta P1;
if the system 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-10log N-10log M1 and the lower limit P2 is P1-delta P2;
If the system of the information source is a single WCDMA information source, determining that the upper limit P1 of a 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 duty ratio of pilot signal power in the total power of the source, 1/M2 represents the duty ratio of pilot signal power in the total power of the source under the single carrier condition, and Δp1, Δp2 and Δp3 are a first preset constant, a second preset constant and a third preset constant, respectively.
12. The network coverage optimization device of claim 8, wherein,
the processor is further configured to select, when the source received by the network coverage optimization device is a mixed mode source of the same base station, pilot signal power with the most stable power and a target system to which the pilot signal power belongs from pilot signal powers of the mixed mode source, as reference signal power and a reference target system 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 duty ratio of the carrier power of the reference target system in the carrier power of the mixed mode signal source, 1/M4 represents the duty ratio of the reference signal power in the total power of the signal source of the reference target system, and Δp4 is a fourth preset constant.
13. The network coverage optimization device of claim 8, wherein,
the processor is further configured to determine that an upper limit P1 of a power interval corresponding to the source is Pmax-Gmax and a lower limit P2 is P1- Δp5 when the source received by the network coverage optimization device includes sources of different base stations, or the source received by the network coverage optimization device includes sources of multiple systems with unknown power ratio, or the stability of the power of the source received by the network coverage optimization device does not meet a predetermined requirement; wherein Pmax is the maximum output power of the network coverage optimizing device, gmax is the maximum gain of the network coverage optimizing device, and Δp5 is a fifth preset constant.
14. The network coverage optimization device of claim 8, wherein,
the processor is further configured to adjust a gain of a first link when reducing or increasing a signal gain of the network coverage optimization device, 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.
15. A network coverage optimization device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which, when executed by the processor, performs the steps of the method according to any one of claims 1 to 7.
16. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, implements the steps of the method according to any one of claims 1 to 7.
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