CN112929037A - Signal combining system and electronic equipment - Google Patents
Signal combining system and electronic equipment Download PDFInfo
- Publication number
- CN112929037A CN112929037A CN202110127064.8A CN202110127064A CN112929037A CN 112929037 A CN112929037 A CN 112929037A CN 202110127064 A CN202110127064 A CN 202110127064A CN 112929037 A CN112929037 A CN 112929037A
- Authority
- CN
- China
- Prior art keywords
- radio frequency
- module
- antennas
- ports
- antenna
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 13
- 230000006855 networking Effects 0.000 abstract description 4
- 238000004891 communication Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0064—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with separate antennas for the more than one band
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The application discloses signal combiner system and electronic equipment belongs to the technical field of communication. The signal combining system includes: the antenna comprises N radio frequency modules, a combiner module and N antennas, wherein N is an integer greater than 1; the N radio frequency modules respectively correspond to N operators, and the signal frequency bands supported by each radio frequency module in the N radio frequency modules comprise all the frequency bands of the corresponding operators; the N radio frequency modules are respectively connected with a first side port of the combining module, and the N antennas are respectively connected with a second side port of the combining module, so that the N radio frequency modules share the N antennas to receive and send signals of N operators. Therefore, not only can the network interference among different operators be controlled, but also the use amount of the radio frequency module and the antenna of each physical point position can be reduced through the sharing of the antenna, and therefore the installation difficulty and the networking cost of network equipment are reduced.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to a signal combining system and electronic equipment.
Background
In the network construction of a large venue or a transportation hub, in order to better control interference, each operator usually deploys an independent rf module and an independent antenna. By the method, a large number of radio frequency modules and antennas are required to be installed at each physical point of a large-scale venue or a traffic hub to meet the requirements of different operators on different coverage areas, so that the use amount of the radio frequency modules and the antennas is increased, and the installation difficulty and the network construction cost of network equipment are increased.
Disclosure of Invention
The embodiment of the application aims to provide a signal combining system and electronic equipment, and the signal combining system and the electronic equipment can solve the problem that the installation difficulty and the network building cost of network equipment are increased because a large number of radio frequency modules and antennas need to be installed at each physical point position in the conventional network building mode.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a signal combining system, where the signal combining system includes: the antenna comprises N radio frequency modules, a combiner module and N antennas, wherein N is an integer greater than 1;
the N radio frequency modules respectively correspond to N operators, and the signal frequency bands supported by each radio frequency module in the N radio frequency modules comprise all the frequency bands of the corresponding operators;
the N radio frequency modules are respectively connected with a first side port of the combining module, and the N antennas are respectively connected with a second side port of the combining module, so that the N radio frequency modules share the N antennas to receive and send signals of N operators.
Furthermore, each radio frequency module in the N radio frequency modules includes M ports, each antenna in the N antennas includes M ports, the number of the M ports corresponds to the number of channels of the radio frequency module, and M is an integer greater than 1;
the N x M ports of the N radio frequency modules are respectively connected with the N x M first side ports of the combining module, and the N x M ports of the N antennas are respectively connected with the N x M second side ports of the combining module.
Further, in a case that N is 2, the N radio frequency modules include a first radio frequency module and a second radio frequency module, and the N antennas include a first antenna and a second antenna;
the combining module comprises M electric bridges, a first side port of each electric bridge comprises a first input port and a second input port, and a second side port of each electric bridge comprises a first output port and a second output port;
the M ports of the first radio frequency module are respectively connected with the first input port of each bridge in the M bridges; the M ports of the second radio frequency module are respectively connected with the second input port of each bridge in the M bridges;
m ports of the first antenna are respectively connected with a first output port of each bridge in the M bridges; and the M ports of the second antenna are respectively connected with the second output port of each bridge in the M bridges.
Further, the N radio frequency modules are N active pico stations.
Further, the N antennas are N shaped antennas.
Furthermore, the N radio frequency modules, the combiner module, and the N antennas are connected by a feeder line.
Further, the feed line is 1/2 feed line.
Further, under the condition that the N antennas support K signal frequency bands, K electrical tilt modules corresponding to the K signal frequency bands are arranged on the N antennas, and K is an integer greater than 1.
Furthermore, the electric tilt module comprises a processing unit, an analog-to-digital converter, a phase shifter and a transmission unit;
the processing unit is respectively connected with the analog-to-digital converter and the transmission unit, and the phase shifter is respectively connected with the analog-to-digital converter and the transmission unit;
the processing unit is used for determining a target output voltage corresponding to the electrical downtilt after receiving the setting operation of a user on the electrical downtilt, comparing the target output voltage with the output voltage of the analog-to-digital converter, and driving the transmission unit to move according to the comparison result;
the transmission unit is used for driving the phase shifter to move in the moving process;
the phase shifter is used for changing the resistance value of the phase shifter in the moving process;
and the analog-to-digital converter is used for determining output voltage according to the change of the resistance value in the phase shifter.
In a second aspect, an embodiment of the present application provides an electronic device, which includes the signal combining system according to the first aspect.
In an embodiment of the present application, the signal combining system includes: the antenna comprises N radio frequency modules, a combiner module and N antennas, wherein N is an integer greater than 1; the N radio frequency modules respectively correspond to N operators, and the signal frequency bands supported by each radio frequency module in the N radio frequency modules comprise all the frequency bands of the corresponding operators; the N radio frequency modules are respectively connected with a first side port of the combining module, and the N antennas are respectively connected with a second side port of the combining module, so that the N radio frequency modules share the N antennas to receive and send signals of N operators. Therefore, the plurality of radio frequency modules corresponding to different operators can be simultaneously connected with the plurality of antennas through the combining module, so that the network coverage of different operators to a plurality of areas is met. By the method, not only can network interference among different operators be controlled, but also the number of radio frequency modules and antennas of each physical point position can be reduced through sharing of the antennas, so that the installation difficulty and the networking cost of network equipment are reduced.
Drawings
Fig. 1 is a schematic structural diagram of a signal combining system according to an embodiment of the present disclosure;
fig. 2 is a second schematic structural diagram of a signal combining system according to an embodiment of the present disclosure;
fig. 3 is a third schematic structural diagram of a signal combining system according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an electrical tilt module provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
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 will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The signal combining system provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a signal combining system provided in an embodiment of the present application. As shown in fig. 1, the system includes: n radio frequency modules 100, a combiner module 200, and N antennas 300, where N is an integer greater than 1;
the N radio frequency modules 100 correspond to N operators, respectively, and the signal frequency band supported by each radio frequency module in the N radio frequency modules 100 includes all the frequency bands of the corresponding operator;
the N rf modules 100 are respectively connected to a first side port of the combining module 200, and the N antennas 300 are respectively connected to a second side port of the combining module 200, so that the N rf modules 100 share the N antennas 300 to receive and transmit signals of N operators.
Specifically, the Radio frequency module may be any base station such as a macro station, a micro station, a pico station, and a femto station, and may also be a Remote Radio Unit (RRU) or the like. The antenna includes, but is not limited to, a shaped antenna, a high-density antenna, a general antenna, etc. The combining module 200 may be any module having a signal combining function, for example, the combining module 200 may be composed of one or more 3db bridges, or the combining module 200 may be composed of one or more two power splitters, or the combining module 200 may be composed of one or more combiners, and the like, which is not limited in this application.
In one embodiment, the number of rf modules and antennas may be any positive integer, such as 2, 3, 4, etc. Each radio frequency module corresponds to one operator, and each antenna corresponds to one network coverage area. The N radio frequency modules 100 are respectively connected to the first side ports of the combining module 200, and the N antennas 300 are respectively connected to the second side ports of the combining module 200, wherein the port number of the first side ports of the combining module 200 may be determined according to the number of the radio frequency modules and the port number of each radio frequency module, the port number of the second side ports of the combining module 200 may be determined according to the number of the antennas and the port number of each antenna, and may be specifically set according to actual needs, which is not specifically limited in the present application.
The signal combining system in the embodiment of the application can connect a plurality of radio frequency modules corresponding to different operators with a plurality of antennas through the combining module 200, so as to satisfy the network coverage of different operators to a plurality of areas. By the method, not only can network interference among different operators be controlled, but also the number of radio frequency modules and antennas of each physical point position can be reduced through sharing of the antennas, so that the installation difficulty and the networking cost of network equipment are reduced.
Further, each of the N rf modules 100 includes M ports, each of the N antennas 300 includes M ports, the M ports correspond to the number of channels of the rf module, and M is an integer greater than 1;
the N × M ports of the N rf modules 100 are respectively connected to the N × M first side ports of the combiner module 200, and the N × M ports of the N antennas 300 are respectively connected to the N × M second side ports of the combiner module 200.
In one embodiment, the number of ports of the rf module corresponds to the number of channels supported by the rf module, and when the rf module supports 2 channels, the number of ports of the rf module is 2; when the rf module supports 4 channels, the number of ports of the rf module is 4. The number of the ports of the antenna corresponds to the number of the ports of the radio frequency module. Thus, when the rf modules and the antennas are connected through the combining module 200, it is necessary to connect the N × M ports of the N rf modules 100 to the N × M first side ports of the combining module 200, and the N × M ports of the N antennas 300 to the N × M second side ports of the combining module 200, so as to ensure that each signal input to the combining module 200 can be output from the combining module 200 to different antenna ports.
Further, in the case that N is 2, the N radio frequency modules 100 include a first radio frequency module 101 and a second radio frequency module 102, and the N antennas 300 include a first antenna 301 and a second antenna 302;
the combining module 200 includes M bridges 201, a first side port of each bridge 201 includes a first input port a and a second input port b, and a second side port of each bridge 201 includes a first output port c and a second output port d;
the M ports of the first rf module 101 are respectively connected to the first input port a of each bridge 201 in the M bridges 201; the M ports of the second rf module 102 are respectively connected to the second input port b of each bridge 201 in the M bridges 201;
the M ports of the first antenna 301 are respectively connected to the first output port c of each bridge 201 in the M bridges 201; the M ports of the second antenna 302 are respectively connected to the second output ports d of the M bridges 201.
Specifically, when N is 2, the N rf modules 100 include a first rf module 101 and a second rf module 102, and the N antennas include a first antenna 301 and a second antenna 302. In the embodiment of the present application, the bridges 201 are used as the combining modules 200, and the bridges 201 have a structure of two-in and two-out, so that the number of the bridges 201 is the same as the number of channels of the rf module, and the different channels are combined by the plurality of bridges 201.
In an embodiment, please refer to fig. 2, and fig. 2 is a second schematic structural diagram of a signal combining system according to an embodiment of the present application. As shown in fig. 2, the first rf module 101 and the second rf module 102 correspond to an operator 1 and an operator 2, the number of channels of the rf module is 2, the first rf module 101 and the second rf module 102 respectively include 2 ports for supporting the 2 channels, when the first rf module 101 and the second rf module 102 are connected to 2 bridges 201, the 2 ports of the first rf module 101 need to be connected to first input ports a of the 2 bridges 201, and the 2 ports of the second rf module 102 need to be connected to second input ports b of the 2 bridges 201. The network coverage areas of the first antenna 301 and the second antenna 302 correspond to the area a and the area B, respectively, and when the first antenna 301 and the second antenna 302 are connected to 2 bridges 201, 2 ports of the first antenna 301 need to be connected to the first output ports c of the 2 bridges 201, respectively, and 2 ports of the first antenna 301 need to be connected to the second output ports d of the 2 bridges 201, respectively. In this way, the two signals output from the first rf module 101 may be transmitted to the first antenna 301 and the second antenna 302 to perform network coverage on the area a and the area B, and meanwhile, the two signals output from the second rf module 102 may also be transmitted to the first antenna 301 and the second antenna 302 to perform network coverage on the area a and the area B. That is to say, in the embodiment of the present application, only 2 radio frequency modules and 2 antennas need to be set, and it can be realized that the operator 1 and the operator 2 can simultaneously cover the area a and the area B. Compared with the prior art that each operator needs to separately set a radio frequency module and an antenna to cover each area, assuming that operator 1 and operator 2 need to cover area a and area B, 2 radio frequency modules and 2 antennas need to be set for operator 1 to cover area a and area B, and 2 radio frequency modules and 2 antennas need to be set for operator 2 to cover area a and area B, that is, a total of 4 radio frequency modules and 4 antennas are needed to meet the requirement. Therefore, in the embodiment of the application, half of the radio frequency module and the antenna can be saved, and the installation difficulty and the network building cost of the network equipment are greatly reduced.
In another embodiment, please refer to fig. 3, fig. 3 is a third schematic structural diagram of a signal combining system provided in the present embodiment. As shown in fig. 3, the first rf module 101 and the second rf module 102 correspond to an operator 1 and an operator 2, respectively, and when the number of channels of the rf module is 4, the first rf module 101 and the second rf module 102 respectively include 4 ports for supporting the 4 channels, and when the first rf module 101 and the second rf module 102 are connected to the 4 bridges 201, the 4 ports of the first rf module 101 need to be connected to the first input ports a of the 4 bridges 201, and the 4 ports of the second rf module 102 need to be connected to the second input ports b of the 4 bridges 201. The network coverage areas of the first antenna 301 and the second antenna 302 correspond to the area a and the area B, respectively, and when the first antenna 301 and the second antenna 302 are connected to the 4 bridges 201, it is necessary to connect the 4 ports of the first antenna 301 to the first output ports c of the 4 bridges 201, respectively, and connect the 4 ports of the first antenna 301 to the second output ports d of the 4 bridges 201, respectively. In this way, the 4-channel signal output from the first rf module 101 may be transmitted to the first antenna 301 and the second antenna 302 to perform network coverage on the area a and the area B, and the 4-channel signal output from the second rf module 102 may also be transmitted to the first antenna 301 and the second antenna 302 to perform network coverage on the area a and the area B. That is to say, in the embodiment of the present application, only 2 radio frequency modules and 2 antennas need to be set, and it can be realized that the operator 1 and the operator 2 can simultaneously cover the area a and the area B. Compared with the prior art that each operator needs to separately set a radio frequency module and an antenna to cover each area, assuming that operator 1 and operator 2 need to cover area a and area B, 2 radio frequency modules and 2 antennas need to be set for operator 1 to cover area a and area B, and 2 radio frequency modules and 2 antennas need to be set for operator 2 to cover area a and area B, that is, a total of 4 radio frequency modules and 4 antennas are needed to meet the requirement. Therefore, in the embodiment of the application, half of the radio frequency module and the antenna can be saved, and the installation difficulty and the network building cost of the network equipment are greatly reduced.
Further, the N rf modules 100 are N active pico stations.
In one embodiment, the signal combining system can be applied to network construction in large venues such as airports, exhibition halls and sports halls, or in shopping centers, office buildings, hotels, transportation hubs and the like. Under the condition of meeting the requirement of Reference Signal Receiving Power (RSRP) of the edge of a coverage area in each scene, an active pico-station can be selected as a radio frequency module. The active pico-station is a radio frequency unit capable of being externally connected with an antenna, and can provide signal output of different frequency bands of different operators, wherein the output signal frequency bands include but are not limited to: FDD1800(1805 Mhz-1830 Mhz), D frequency band (2515 Mhz-2675 Mhz), E frequency band (2320 Mhz-2370 Mhz), FDD1800(1805 Mhz-1880 Mhz), LTE 2100(2110 Mhz-2170 Mhz), NR 3.5G (3300 Mhz-3600 Mhz), and the like.
In addition, the active leather station can adopt various installation modes such as holding pole installation, wall hanging installation, top breaking installation and the like, so that the installation is more convenient and the engineering implementation period is short. Besides, the active pico-station supports multiple return modes, and a Packet Transport Network (PTN) from the BBU to the core Network, a Gigabit-capable Passive Optical Network (GPON) or other Internet (Internet) can be used to connect to the core Network. In addition, the active pico-station can also support a Multiple Input Multiple Output (MIMO) multi-antenna technology, has higher capacity and can meet the coverage of hot spots with dense population.
Further, the N antennas 300 are N shaped antennas.
In one embodiment, the antenna is a shaped antenna. The shaped antenna can expand the antenna beam into different shapes by controlling the amplitude and the phase of the array unit, thereby realizing better control of signal coverage ranges of different frequency bands of different operators. And the sidelobe suppression of the shaped antenna is more than 20dB, so that the shaped antenna has the function of suppressing the interference of the adjacent region and can effectively ensure the stability of the network.
Further, the N rf modules 100, the combiner module 200, and the N antennas 300 are connected by a feeder.
In one embodiment, the rf modules and the antennas are connected to the combiner module 200 by feeders. The feed lines used in the present embodiment include, but are not limited to, 1/2 feed lines, 7/8 feed lines, 13/8 feed lines, and the like, and the present embodiment is not particularly limited. Since the feeder has advantages of sufficient bandwidth and power capacity, all signal bands of each operator can be supported when each rf module and each antenna are connected to the combiner module 200 by using the feeder.
Further, the feed line is 1/2 feed line.
In one embodiment, 1/2 feed lines are used to connect the rf modules and antennas to the combining module 200. The 1/2 feeder is a radio frequency coaxial cable composed of an inner conductor, an insulation, an outer conductor, a sheath and the like, the diameter of the radio frequency coaxial cable is 1/2 inches, and since the 1/2 feeder is easy to bend, the 1/2 feeder is adopted to connect each radio frequency module and each antenna with the combiner module 200, which is more beneficial to installation and construction.
Further, under the condition that N antennas support K signal frequency bands, K electric tilt modules corresponding to the K signal frequency bands are arranged on the N antennas, and K is an integer larger than 1.
In an embodiment, the K signal bands include, but are not limited to, some or all of the signal bands of N operators accessing the N antennas. Continuing to refer to fig. 2, it is assumed that, in the signal combining system shown in fig. 2, the signal frequency band of the operator 1 corresponding to the first radio frequency module 101 includes a frequency band 1, a frequency band 2, and a frequency band 3, and the signal frequency band of the operator 2 corresponding to the first radio frequency module 101 includes a frequency band 4 and a frequency band 5, then 5 electrical tilt modules need to be set on the first antenna 301 and the second antenna 302, and the electrical tilt angles corresponding to the 5 signal frequency bands are set through the 5 electrical tilt modules, so as to meet the coverage requirements of different frequency bands of different operators.
Further, the electronic tilt module 400 includes a processing unit 401, an analog-to-digital converter 402, a phase shifter 403, and a transmission unit 404;
wherein, the processing unit 401 is respectively connected with the analog-to-digital converter 402 and the transmission unit 404, and the phase shifter 403 is respectively connected with the analog-to-digital converter 402 and the transmission unit 404;
the processing unit 401 is configured to determine a target output voltage corresponding to the electrical downtilt after receiving a setting operation of a user on the electrical downtilt, compare the target output voltage with an output voltage of the analog-to-digital converter 402, and drive the transmission unit 404 to move according to a comparison result;
a transmission unit 404 for driving the phase shifter 403 to move during the moving process;
a phase shifter 403 for changing its resistance value during the movement;
an analog-to-digital converter 402 for determining an output voltage according to a change in the resistance value in the phase shifter 403.
Specifically, referring to fig. 4, fig. 4 is a schematic structural diagram of an electrical tilt module provided in the embodiment of the present application. As shown in fig. 4, the electronic tilt module 400 includes a processing unit 401, an analog-to-digital converter 402, a phase shifter 403, and a transmission unit 404. The processing unit 401 is configured to determine a target output voltage corresponding to the electrical downtilt after receiving a setting operation of a user on the electrical downtilt, compare the target output voltage with an output voltage of the analog-to-digital converter 402, and drive the transmission unit 404 to move according to a comparison result; a transmission unit 404 for driving the phase shifter 403 to move during the moving process; a phase shifter 403 for changing its resistance value during the movement; an analog-to-digital converter 402 for determining an output voltage according to a change in the resistance value in the phase shifter 403. Thus, during the adjustment, if the output voltage of the analog-to-digital converter 402 is equal to the target output voltage, the processing unit 401 stops driving the transmission unit 404, thereby keeping the current phase of the phase shifter 403, i.e., the electrical downtilt angle of the antenna, unchanged. If the output voltage of the analog-to-digital converter 402 is greater than or less than the target output voltage, the processing unit 401 continues to drive the transmission unit 404 to further drive the phase shifter 403 to move, the electrical downtilt angle of the antenna changes along with the movement of the phase shifter 403, and meanwhile, the resistance value of the phase shifter 403 changes, so that the output voltage of the analog-to-digital converter 402 changes, when the output voltage of the analog-to-digital converter 402 is equal to the target output voltage, the phase shifter 403 completes adjustment, and the electrical downtilt angle also completes synchronous adjustment.
In this embodiment, through increasing electricity tilt module 400 on the antenna, can avoid adopting traditional physical mode to adjust mechanical downtilt angle and control network coverage to promoted the adjustment convenience, simultaneously, through setting up a plurality of electricity tilt module 400, can realize setting up the electric downtilt angle of different frequency channels, in order to satisfy different operators' cover demand.
Besides, an embodiment of the present application further provides an electronic device, which includes the signal combining system in the above embodiment. The electronic device in the embodiment of the present application can also achieve the technical effect of the signal combining system in the above embodiment, and is not described herein again to avoid repetition.
Before the signal combining system provided in the embodiment of the present application is used, it is necessary to evaluate a frequency band support degree of an antenna, a frequency band support degree of a combining module, a coverage link budget analysis, a capacity analysis, a feasibility analysis of construction, and the like, so as to ensure that the signal combining system provided in the embodiment of the present application can be used.
Specifically, the frequency band support of the antenna needs to satisfy the following conditions: the signal frequency bands supported by the antenna at least comprise all frequency bands of a plurality of operators corresponding to a plurality of radio frequency modules connected with the antenna.
The frequency band support degree of the combining module needs to meet the following conditions: the signal frequency bands supported by the combining module at least include all frequency bands of a plurality of operators corresponding to the plurality of radio frequency modules connected with the combining module.
The conditions that need to be met by the coverage link budget analysis are: after the radio frequency module passes through the combiner module and the feeder loss, a preset model such as a 3GPP 38.901 model is adopted to perform link budget analysis, and the edge coverage level can meet the index acceptance requirements of operators.
The indoor propagation loss of the bridge to a fifth generation mobile communication technology (5G for short) system is PLInH-Los*PrLos+PLInH-NLos*(1-PrLos)。
Wherein, the distance of sight path loss PLInH-LosAnd non-line-of-sight path loss PLInH-NLosThe description is as follows:
herein fCMeans the signal frequency in GHz, d3DWhich refers to the distance between the terminal and the antenna, and has the unit of meter (m).
Wherein, to PrLosThe description is as follows:
where d is2D-inRefers to the coverage distance within the room.
Aiming at two formulas of non-line-of-sight (NLOS) scenes, the two formulas are selected according to specific property structures, and are used in the scenes with more partition scenes or large penetration loss such as metal and the likeOptional PL′InH-NLosA formula; using PL in less cut-off scenarios or general penetration loss scenariosInH-NLosAnd PL'InH-NLosAnd (4) a formula.
The conditions that need to be met by the capacity analysis are: in a scenario where one logical cell can carry user traffic in an area covered by at least 2 physical points.
The specific capacity analysis process comprises the following steps:
And 102, evaluating guarantee rates of different services by taking user 3s service perception as a reference through a large number of actual tests and theoretical analysis.
And 103, determining the busy hour downlink rate of the single user according to the proportion of each service and the guarantee rate of each service.
And step 104, determining the number of users in the coverage area according to the downlink rate of the single user in busy time.
In one embodiment, it is assumed that the evaluation result of the usage ratio of each service in the networking area is as shown in table one:
watch 1
The evaluation results of the guaranteed rates for different services are assumed to be shown in table two:
watch two
Step 103, since the downlink rate in busy hour of a single user is the sum of the service proportion and the service guarantee rate, it can be predicted that the downlink rate in busy hour of 5G single user in 2020 requires 2.52Mbps, as shown in table three.
Watch III
Under the configuration of the existing 5G commercial network, the distribution of far, middle and near users is combined, the cell throughput rate of the 4-channel active leather station is 1.18Gbps, and the number of users can be 468 under the condition of meeting the service guarantee rate of a single user of 2.52 Mbps; the cell throughput rate of the 2-channel active pico-station is 0.63Gbps, and the number of users 251 can be accommodated under the condition that the single-user service guarantee rate is 2.52Mbps, as shown in the table four.
Watch four
Namely, the situation that the number of users in the area covered by 2 physical points is not more than 251 people can be considered that the capacity meets the condition. Because different operators may have different requirements on service guarantee rates in different scenes, the evaluation method refers to the above steps, and the specific numerical value is adapted by combining the requirements of the operators.
The conditions required to be met by the construction feasibility are as follows: and (4) evaluating the construction feasibility of the site by combining the actual engineering conditions of the site, for example, whether a wire slot and the like can be used for deploying 1/2 feeder lines.
When the above five evaluation conditions are all satisfied, the signal combining system shown in fig. 1 to 4 can be adopted, which not only can effectively control the interference problem between signals of different operators, but also can reduce the usage amount of the antenna and the radio frequency module, and effectively reduce the construction difficulty and the network construction cost. In addition, the electric tuning module is additionally arranged on the antenna, so that the convenience of adjusting the electric downtilt angle can be improved, and the electric downtilt angles of different frequency bands can be set to meet the coverage requirements of different operators.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that 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.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A signal combining system, comprising: the antenna comprises N radio frequency modules, a combiner module and N antennas, wherein N is an integer greater than 1;
the N radio frequency modules respectively correspond to N operators, and the signal frequency bands supported by each radio frequency module in the N radio frequency modules comprise all the frequency bands of the corresponding operators;
the N radio frequency modules are respectively connected with a first side port of the combining module, and the N antennas are respectively connected with a second side port of the combining module, so that the N radio frequency modules share the N antennas to receive and send signals of N operators.
2. The signal combining system of claim 1, wherein each of the N radio frequency modules includes M ports, each of the N antennas includes M ports corresponding to a number of channels of the radio frequency module, and M is an integer greater than 1;
the N x M ports of the N radio frequency modules are respectively connected with the N x M first side ports of the combining module, and the N x M ports of the N antennas are respectively connected with the N x M second side ports of the combining module.
3. The signal combining system of claim 2, wherein, in the case that N is 2, the N radio frequency modules comprise a first radio frequency module and a second radio frequency module, and the N antennas comprise a first antenna and a second antenna;
the combining module comprises M electric bridges, a first side port of each electric bridge comprises a first input port and a second input port, and a second side port of each electric bridge comprises a first output port and a second output port;
the M ports of the first radio frequency module are respectively connected with the first input port of each bridge in the M bridges; the M ports of the second radio frequency module are respectively connected with the second input port of each bridge in the M bridges; m ports of the first antenna are respectively connected with a first output port of each bridge in the M bridges; and the M ports of the second antenna are respectively connected with the second output port of each bridge in the M bridges.
4. The signal combining system of claim 1, wherein the N radio frequency modules are N active pico stations.
5. The signal combining system of claim 1, wherein the N antennas are N shaped antennas.
6. The signal combining system of claim 1, wherein the N rf modules, the combining module, and the N antennas are connected by a feed line.
7. The signal combining system of claim 6, wherein the feed line is an 1/2 feed line.
8. The signal combining system according to any one of claims 1 to 7, wherein K electrical tilt modules corresponding to the K signal frequency bands are disposed on the N antennas when the N antennas support K signal frequency bands, where K is an integer greater than 1.
9. The signal combining system of claim 8, wherein the electrical tilt module comprises a processing unit, an analog-to-digital converter, a phase shifter and a transmission unit;
the processing unit is respectively connected with the analog-to-digital converter and the transmission unit, and the phase shifter is respectively connected with the analog-to-digital converter and the transmission unit;
the processing unit is used for determining a target output voltage corresponding to the electrical downtilt after receiving the setting operation of a user on the electrical downtilt, comparing the target output voltage with the output voltage of the analog-to-digital converter, and driving the transmission unit to move according to the comparison result;
the transmission unit is used for driving the phase shifter to move in the moving process;
the phase shifter is used for changing the resistance value of the phase shifter in the moving process;
and the analog-to-digital converter is used for determining output voltage according to the change of the resistance value in the phase shifter.
10. An electronic device, characterized in that the electronic device comprises a signal combining system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110127064.8A CN112929037B (en) | 2021-01-29 | 2021-01-29 | Signal combining system and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110127064.8A CN112929037B (en) | 2021-01-29 | 2021-01-29 | Signal combining system and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112929037A true CN112929037A (en) | 2021-06-08 |
| CN112929037B CN112929037B (en) | 2022-04-01 |
Family
ID=76168618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110127064.8A Active CN112929037B (en) | 2021-01-29 | 2021-01-29 | Signal combining system and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112929037B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117156448A (en) * | 2023-11-01 | 2023-12-01 | 中国铁塔股份有限公司 | Signal transmission method, device and medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1706068A (en) * | 2002-10-19 | 2005-12-07 | 昆特尔科技有限公司 | Mobile radio base station |
| CN1898878A (en) * | 2003-12-20 | 2007-01-17 | 艾利森电话股份有限公司 | Transceiver system including multiple radio base stations that share an antenna |
| CN201222729Y (en) * | 2008-07-22 | 2009-04-15 | 京信通信系统（中国）有限公司 | Co-frequency band composite unit and device for mixing and separating line |
| CN103474774A (en) * | 2012-06-08 | 2013-12-25 | 罗森伯格（上海）通信技术有限公司 | Apparatus and method for adjusting electrical downtilt of base station antenna |
| WO2015018057A1 (en) * | 2013-08-09 | 2015-02-12 | 华为技术有限公司 | Method and system for sharing antenna by multiple operators and radio-frequency digital conversion unit |
-
2021
- 2021-01-29 CN CN202110127064.8A patent/CN112929037B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1706068A (en) * | 2002-10-19 | 2005-12-07 | 昆特尔科技有限公司 | Mobile radio base station |
| CN1898878A (en) * | 2003-12-20 | 2007-01-17 | 艾利森电话股份有限公司 | Transceiver system including multiple radio base stations that share an antenna |
| CN201222729Y (en) * | 2008-07-22 | 2009-04-15 | 京信通信系统（中国）有限公司 | Co-frequency band composite unit and device for mixing and separating line |
| CN103474774A (en) * | 2012-06-08 | 2013-12-25 | 罗森伯格（上海）通信技术有限公司 | Apparatus and method for adjusting electrical downtilt of base station antenna |
| WO2015018057A1 (en) * | 2013-08-09 | 2015-02-12 | 华为技术有限公司 | Method and system for sharing antenna by multiple operators and radio-frequency digital conversion unit |
Non-Patent Citations (2)
| Title |
|---|
| 刘杉坚等: "5.8 GHz室外环境传播特性分析", 《吉林大学学报(信息科学版)》 * |
| 沈化岩: "浅析室内分布系统共建共享链路预算与干扰抑制", 《中国新通信》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117156448A (en) * | 2023-11-01 | 2023-12-01 | 中国铁塔股份有限公司 | Signal transmission method, device and medium |
| CN117156448B (en) * | 2023-11-01 | 2024-01-30 | 中国铁塔股份有限公司 | Signal transmission method, device and medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112929037B (en) | 2022-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9806413B1 (en) | Automatic control of spacing between antenna dipole columns | |
| US9906351B2 (en) | Method of communication with distributed antenna array system and array system | |
| JP6473520B2 (en) | Method for small base station uplink signal interference in indoor DAS system with antenna selection | |
| WO2014043401A1 (en) | Wireless antenna communicating system and method | |
| CN111246492B (en) | A network architecture and resource allocation method | |
| CN103826233B (en) | Combination network collocation method and device | |
| WO2005053182A1 (en) | A method and apparatu for implementing beam forming in cdma communication system | |
| US9712212B2 (en) | Multiple service distributed-antenna system | |
| CN112929037B (en) | Signal combining system and electronic equipment | |
| EP1430564A1 (en) | Method and apparatus for beam steering in a wireless communications systems | |
| CN112788612B (en) | Beam processing method, device and storage medium | |
| CN109587694B (en) | A method and electronic device for improving signal coverage of urban villages | |
| CN104703194A (en) | Indoor distribution system and realizing method thereof | |
| CN104022986B (en) | A kind of method and apparatus for reducing multiple antennas interference | |
| CN103179587A (en) | Base station | |
| CN113727361A (en) | Mobile network indoor signal coverage system | |
| KR20030035867A (en) | Device for Switching Sector in Mobile Communication System and Method thereof | |
| Petrović et al. | LTE performance in a hybrid indoor DAS (Active vs. Passive) | |
| Lähdekorpi et al. | Implementation aspects of RF-repeaters in cellular networks | |
| CN220415464U (en) | Mining fusion information transmission system | |
| CN114665996B (en) | Same-frequency neighbor cell dynamic identification method suitable for digital indoor subsystem | |
| Zhukov et al. | On load-aware cell association schemes for group user mobility in mmWave networks | |
| CN116722897B (en) | Apparatus, method and medium for hybrid beamforming | |
| US10863584B2 (en) | Small cell mobile signal aggrogator | |
| WO2012102653A1 (en) | Adjusting coverage area of a base station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB02 | Change of applicant information |
Address after: Room 101, floors 1-3, building 14, North District, yard 9, dongran North Street, Haidian District, Beijing 100029 Applicant after: CHINA TOWER Co.,Ltd. Address before: 100142 19th floor, 73 Fucheng Road, Haidian District, Beijing Applicant before: CHINA TOWER Co.,Ltd. |
|
| CB02 | Change of applicant information |