CN117693006A - Distributed coverage system, configuration method thereof and base station - Google Patents
Distributed coverage system, configuration method thereof and base station Download PDFInfo
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Abstract
The invention provides a distributed coverage system, a configuration method thereof and a base station, wherein the distributed coverage system comprises: the radio frequency unit comprises N radio frequency ports, N is an integer greater than or equal to 2, and the N radio frequency ports are respectively used for outputting signals of N frequency bands; the antenna system comprises N antenna groups, wherein the N antenna groups are respectively used for being deployed to N coverage areas; the control module is used for generating control signals according to the real-time user bearing information of the N coverage areas; the adjusting module is arranged between the radio frequency unit and the N antenna groups, is connected with the control module and is used for adjusting the signal power input from the radio frequency unit to the N antenna groups according to the control signal. The invention aims at a Shan Xinyuan multi-area distributed coverage system, and can flexibly adjust the communication resources of each coverage area according to the number of users of each coverage area.
Description
Technical Field
The embodiment of the invention relates to the technical field of wireless communication, in particular to a distributed coverage system, a configuration method thereof and a base station.
Background
The current mobile communication coverage of indoor areas is mostly distributed coverage, i.e. a mode of 'single information source plus multiple antennas, wherein the antennas are uniformly distributed in a target area'. The coverage mode can remarkably save the number of the information sources, and all terminals in a larger area are converged to only one information source through the power distribution system to provide communication service, so that the coverage mode is particularly suitable for public scenes with low terminal density and low capacity requirement.
The distributed coverage may be the case where Shan Xinyuan covers a single area. On this basis, the way that a single source covers multiple areas can also be derived. Taking the existing 5G frequency band as an example, the 2.6GHz spectrum bandwidth is 160MHz, and at least two 5G cells, for example, a 5G cell of 100MHz and a 5G cell of 60MHz, can be turned on. For the scenario of low capacity requirement, in order to improve the spectrum utilization rate as much as possible, the radio frequency unit (i.e. the information source) can be designed into a dual radio frequency port form, namely, 100MHz and 60MHz respectively occupy one radio frequency port to form two cells, the bandwidth of the cell 1 is 100MHz, the bandwidth of the cell 2 is 60MHz, and the two cells respectively cover a part of area. The two coverage areas typically have good isolation between, for example, adjacent floors.
The above-mentioned manner of covering multiple areas Shan Xinyuan has a major disadvantage of poor flexibility, and when the number of users in a certain cell is greatly reduced or the user distribution in two cells is uneven, the allocation of communication resources cannot be adjusted according to the actual number of user terminals.
Disclosure of Invention
The embodiment of the invention provides a distributed coverage system, a configuration method thereof and a base station, which are used for solving the problems that the single-source coverage multi-area mode is poor in flexibility and the allocation of communication resources cannot be adjusted according to the number of actual user terminals.
In order to solve the technical problems, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a distributed coverage system, including:
the radio frequency unit comprises N radio frequency ports, N is an integer greater than or equal to 2, and the N radio frequency ports are respectively used for outputting signal power of N frequency bands;
the antenna system comprises N antenna groups, wherein the N antenna groups are respectively used for being deployed to N coverage areas;
the control module is used for generating control signals according to the real-time user bearing information of the N coverage areas;
the adjusting module is arranged between the radio frequency unit and the N antenna groups, is connected with the control module and is used for adjusting the signal power input from the radio frequency unit to the N antenna groups according to the control signal.
Optionally, the adjusting module includes a power distribution unit, a first switch group and a second switch group;
the first switch group is arranged between the power distribution unit and N radio frequency ports of the radio frequency unit, the second switch group is arranged between the power distribution unit and N antenna groups, and the states of the switches in the first switch group and the second switch group are controlled by the control signals.
Optionally, the power distribution unit includes N input ports and N output ports;
the first switch group comprises N switches, wherein each switch comprises a fixed end and two movable ends, the fixed end is connected with one radio frequency port of the radio frequency unit, one movable end is connected with one input port of the power distribution unit, and the other movable end is connected with the movable end of one switch of the second switch group through a connecting wire;
the second switch group comprises N switches, wherein each switch comprises a fixed end and two movable ends, the fixed ends are connected with one antenna group, one movable end is connected with one output port of the power distribution unit, and the other movable end is connected with the movable end of one switch of the first switch group through a connecting wire.
Optionally, the power distribution unit comprises a radio frequency bridge.
Optionally, the adjusting module includes a radio frequency bridge, a switch group and an adjusting unit, where the switch group is disposed between the radio frequency bridge and N radio frequency ports of the radio frequency unit, and between the radio frequency bridge and the N antenna groups;
the adjusting unit is connected with the switch group and is used for adjusting the states of all the switches in the switch group according to the control signals so as to adjust the signal power input from the radio frequency unit to the N antenna groups.
Alternatively, N is equal to 2;
the radio frequency unit comprises a first radio frequency port and a second radio frequency port;
the 2 antenna groups are a first antenna group and a second antenna group respectively;
the radio frequency bridge comprises a first input port, a second input port, a first output port and a second output port;
the first switch group includes:
the first switch comprises a fixed end and two movable ends, wherein the fixed end is connected with a first radio frequency port of the radio frequency unit, one movable end is connected with a first input port of the radio frequency bridge, and the other movable end is connected with one end of a first connecting wire;
the second switch comprises a fixed end and two movable ends, wherein the fixed end is connected with a second radio frequency port of the radio frequency unit, one movable end is connected with a second input port of the radio frequency bridge, and the other movable end is connected with one end of a second connecting wire;
the second switch group includes:
the third switch comprises a fixed end and two movable ends, wherein the fixed end is connected with the first antenna group, one movable end is connected with a first output port of the radio frequency bridge, and the other movable end is connected with the other end of the first connecting wire;
and the fourth switch comprises a fixed end and two movable ends, wherein the fixed end is connected with the second antenna group, one movable end is connected with a second output port of the radio frequency bridge, and the other movable end is connected with the other end of the second connecting wire.
In a second aspect, an embodiment of the present invention provides a method for configuring a distributed coverage system, which is applied to the distributed coverage system in the first aspect, where the method includes:
and generating control signals according to the real-time user bearing information of the N coverage areas, wherein the control signals are used for adjusting the signal power input to the N antenna groups from the radio frequency unit.
Optionally, the real-time user number information of the N coverage areas includes at least one of: real-time bearing rate of each coverage area, and total real-time bearing rate of the N coverage areas.
Optionally, the real-time bearing rate of the coverage area is calculated by adopting the following formula:
wherein Z is the real-time bearing rate of the coverage area.
Optionally, the total real-time bearing rate of the N coverage areas is calculated by adopting the following formula:
wherein Z0 is the total real-time bearer of the N coverage areas.
Optionally, the 2 coverage areas include a first coverage area and a second coverage area;
the generating the control signal according to the user quantity information of the N coverage areas comprises at least one of the following:
when the real-time bearing rate of the first coverage area and the real-time bearing rate of the second coverage area are both smaller than a first threshold value, and the total real-time bearing rate of the 2 coverage areas is smaller than a second threshold value, generating a first control signal, wherein the first control signal is used for adjusting the state of each switch in the switch group, so that the connection between a first radio frequency port of the radio frequency unit and the radio frequency bridge is disconnected, the connection between a second radio frequency port of the radio frequency unit and the radio frequency bridge is communicated, the connection between the first antenna group and the second antenna group and the radio frequency bridge is communicated, and the bandwidth of a cell corresponding to the first radio frequency port is larger than the bandwidth of a cell corresponding to the second radio frequency port;
when the real-time bearing rate of the first coverage area and the real-time bearing rate of the second coverage area are smaller than a first threshold, and the total real-time bearing rate of the 2 coverage areas is larger than or equal to a second threshold and smaller than a third threshold, generating a second control signal, wherein the second control signal is used for adjusting the state of each switch in the switch group, so that a first radio frequency port of the radio frequency unit is communicated with the connection of the radio frequency bridge, a second radio frequency port of the radio frequency unit is disconnected with the connection of the radio frequency bridge, and the first antenna group and the second antenna group are communicated with the connection of the radio frequency bridge;
when the real-time bearing rate of the first coverage area and the real-time bearing rate of the second coverage area are smaller than a first threshold, and the total real-time bearing rate of the 2 coverage areas is larger than or equal to a third threshold and smaller than a fourth threshold, generating a third control signal, wherein the third control signal is used for adjusting the state of each switch in the switch group, so that a first radio frequency port of the radio frequency unit is communicated with the first antenna group through the first connecting wire, and a second radio frequency port of the radio frequency unit is communicated with the second antenna group through the second connecting wire;
when the real-time bearing rate of the first coverage area or the real-time bearing rate of the second coverage area is greater than or equal to a first threshold value, generating a fourth control signal, wherein the fourth control signal is used for adjusting the state of each switch in the switch group, so that the connection between the first radio frequency port and the second radio frequency port of the radio frequency unit and the radio frequency bridge is disconnected, and the connection between the first antenna group and the second antenna group and the radio frequency bridge is connected.
In a third aspect, an embodiment of the present invention provides a base station, including: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the method of configuring a distributed overlay system as described in the first aspect above.
In a fourth aspect, an embodiment of the present invention provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the method for configuring a distributed overlay system according to the first aspect described above.
In the embodiment of the invention, aiming at the Shan Xinyuan multi-area distributed coverage system, the signal power input by the radio frequency unit to the plurality of antenna groups can be flexibly adjusted according to the number of users in each coverage area by arranging the adjustment module between the radio frequency unit and the plurality of antenna groups so as to adapt to different communication requirements.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic diagram of an architecture of a Shan Xinyuan indoor distributed coverage system covering a single area;
FIG. 2 is a schematic diagram of an architecture of a Shan Xinyuan multi-zone indoor distributed coverage system;
FIG. 3 is a schematic diagram of an adjusting module according to an embodiment of the invention;
FIG. 4 is a schematic diagram of a distributed overlay system according to an embodiment of the present invention;
FIG. 5 is a flow chart of a configuration method of a distributed coverage system according to an embodiment of the present invention;
FIG. 6 is a second flow chart of a method for configuring a distributed coverage system according to an embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating an operating state of the distributed coverage system in state 1 according to an embodiment of the present invention;
FIG. 8 is a schematic diagram illustrating an operating state of the distributed coverage system in state 2 according to an embodiment of the present invention;
FIG. 9 is a schematic diagram illustrating an operating state of the distributed coverage system in state 3 according to an embodiment of the present invention;
FIG. 10 is a schematic diagram illustrating an operating state of the distributed coverage system in state 4 according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a base station according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic architecture diagram of an indoor distributed coverage system of Shan Xinyuan coverage single area, wherein a source, i.e. a radio frequency unit, may be a source of a macro station or a source of a pico station. When the information source is the information source of the macro station, the coverage area is larger because the transmitting power is larger, and the number of the supported antennas is larger; and vice versa when the source is the source of the pico station. The macro station information source can support 30-50 antennas and cover tens of thousands of square meters; the pico station source typically only supports 3-5 antennas covering hundreds of square meters.
Referring to fig. 2, fig. 2 is a schematic diagram of an architecture of an indoor distributed coverage system for Shan Xinyuan coverage multiple areas, as shown in fig. 2, a cell 1 serves a coverage area 1, and a cell 2 serves a coverage area 2. This scheme is suitable when the number of user terminals in both coverage area 1 and coverage area 2 is stable within a predicted range. However, if the number of users is significantly reduced, there may be an excess in bandwidth for both cell 1 and cell 2.
For many "tidal" capacity demand scenarios in current networks, the number of users can vary periodically, such as in markets, office buildings, etc., with daily traffic characteristics that vary regularly over time, and are predictable and monitorable. Taking a workday market scene as an example, the people flow in the night period, the morning period, the afternoon period and the dinner period is increased in sequence regularly. For such a scenario, the conventional deployment architecture in fig. 2 will expose the disadvantage of poor flexibility, i.e. area 1 can only use a given cell 1 bandwidth, regardless of the number of users, and area 2 is the same.
In addition, when the number of users within the coverage areas 1 and 2 is not uniform, the deployment architecture of the distributed coverage system in fig. 2 above is not flexible enough. For example, temporary activities such as sales promotion are held in a mall, or when large and medium-sized conferences are held in an office building, the number of user terminals in the coverage area 1 is greatly increased in a stepwise manner, and it is desired that the cell 1 and the cell 2 are simultaneously covered to realize capacity expansion, but this cannot be realized under a conventional deployment architecture.
In order to solve the problem that the single-source multi-area coverage mode has poor flexibility and cannot adjust communication resource allocation according to the number of actual user terminals, the embodiment of the invention provides a distributed coverage system, which comprises the following components:
the radio frequency unit comprises N radio frequency ports, N is an integer greater than or equal to 2, and the N radio frequency ports are respectively used for outputting signals of N frequency bands; wherein, each radio frequency port correspondingly outputs a frequency band signal;
the antenna system comprises N antenna groups, wherein the N antenna groups are respectively used for being deployed to N coverage areas; each antenna group is correspondingly deployed to one coverage area;
the control module is used for generating control signals according to the real-time user bearing information of the N coverage areas;
the adjusting module is arranged between the radio frequency unit and the N antenna groups, is connected with the control module and is used for adjusting the signal power input from the radio frequency unit to the N antenna groups according to the control signal.
In the embodiment of the invention, aiming at the Shan Xinyuan multi-area distributed coverage system, the signal power input by the radio frequency unit to the plurality of antenna groups can be flexibly adjusted according to the number of users in each coverage area by arranging the adjustment module between the radio frequency unit and the plurality of antenna groups so as to adapt to different communication requirements.
In addition, the distributed coverage system in the embodiment of the invention can further comprise a baseband unit connected with the radio frequency unit.
In an embodiment of the present invention, optionally, the adjusting module includes a power distribution unit, a first switch group and a second switch group. The first switch group is arranged between the power distribution unit and N radio frequency ports of the radio frequency unit, the second switch group is arranged between the power distribution unit and N antenna groups, and the states of the switches in the first switch group and the second switch group are controlled by the control signals.
Optionally, the power distribution unit includes N input ports and N output ports;
the first switch group comprises N switches, wherein each switch comprises a fixed end and two movable ends, the fixed end is connected with one radio frequency port of the radio frequency unit, one movable end is connected with one input port of the power distribution unit, and the other movable end is connected with the movable end of one switch of the second switch group through a connecting wire;
the second switch group comprises N switches, wherein each switch comprises a fixed end and two movable ends, the fixed ends are connected with one antenna group, one movable end is connected with one output port of the power distribution unit, and the other movable end is connected with the movable end of one switch of the first switch group through a connecting wire.
That is, the N input ports of the power distribution unit are connected to the N switches of the first switch group in a one-to-one correspondence, and the N output ports of the power distribution unit are connected to the N switches of the second switch group in a one-to-one correspondence.
Optionally, the power distribution unit comprises a radio frequency bridge. The radio frequency bridge is a microwave passive device, and has simple realization and lower cost.
Referring to fig. 3, fig. 3 is a schematic structural diagram of an adjusting module according to an embodiment of the present invention, where the adjusting module includes a radio frequency bridge, a first switch, a second switch, a third switch, a fourth switch, a first connection line and a second connection line, the radio frequency bridge is a four-port radio frequency bridge, and includes a first input port, a second input port, a first output port and a second output port, and the radio frequency bridge is a microwave passive device, and the working mode of the radio frequency bridge is as follows: when the first input port has signal power input, the signal power is averagely distributed to the first output port and the second output port for output, and the second input port has no signal output; when the second input port has signal power input, the signal power is evenly distributed to the first output port and the second output port for output, and the first input port has no signal output. The adjusting module is provided with four external interfaces, wherein two radio frequency ports connected with the radio frequency unit are connected with the other two antenna groups.
The distributed coverage system according to the embodiment of the present invention will be described below by taking N equal to 2 as an example.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a distributed coverage system according to an embodiment of the present invention, where the distributed coverage system includes:
the radio frequency unit comprises a first radio frequency port and a second radio frequency port, and the first radio frequency port and the second radio frequency port are respectively used for outputting signals in different frequency bands; the first radio frequency port corresponds to cell 1 and the second radio frequency port corresponds to cell 2;
the first antenna group and the second antenna group are respectively used for being deployed to 2 coverage areas, namely a first coverage area and a second coverage area;
a control module (not shown) for generating a control signal according to the real-time user bearer information of the 2 coverage areas (the first coverage area and the second coverage area);
the adjusting module is arranged between the radio frequency unit and the 2 antenna groups (the first antenna group and the second antenna group) and connected with the control module, and is used for adjusting the signal power input from the radio frequency unit to the 2 antenna groups according to the control signal.
Wherein, the adjustment module includes: the power distribution unit, the first switch group and the second switch module; wherein the power distribution unit comprises a radio frequency bridge;
the radio frequency bridge comprises a first input port, a second input port, a first output port and a second output port;
the first switch group includes:
the first switch comprises a fixed end and two movable ends, wherein the fixed end is connected with a first radio frequency port of the radio frequency unit, one movable end is connected with a first input port of the radio frequency bridge, and the other movable end is connected with one end of a first connecting wire;
the second switch comprises a fixed end and two movable ends, wherein the fixed end is connected with a second radio frequency port of the radio frequency unit, one movable end is connected with a second input port of the radio frequency bridge, and the other movable end is connected with one end of a second connecting wire;
the second switch group includes:
the third switch comprises a fixed end and two movable ends, wherein the fixed end is connected with the first antenna group, one movable end is connected with a first output port of the radio frequency bridge, and the other movable end is connected with the other end of the first connecting wire;
and the fourth switch comprises a fixed end and two movable ends, wherein the fixed end is connected with the second antenna group, one movable end is connected with a second output port of the radio frequency bridge, and the other movable end is connected with the other end of the second connecting wire.
In the above embodiment, N is equal to 2, i.e. a single rf unit covers two coverage areas, and in other embodiments of the present invention, N may be greater than 2, i.e. a single rf unit covers more coverage areas, where this may be achieved by increasing the number of rf bridges.
Referring to fig. 5, an embodiment of the present invention further provides a method for configuring a distributed coverage system, which is applied to the distributed coverage system described in any one of the foregoing embodiments, where the method includes:
step 51: and generating control signals according to the real-time user bearing information of the N coverage areas, wherein the control signals are used for adjusting signals input to the N antenna groups from the radio frequency unit.
In an embodiment of the present invention, optionally, the real-time user number information of the N coverage areas includes at least one of the following: real-time bearing rate of each coverage area, and total real-time bearing rate of the N coverage areas.
In the embodiment of the present invention, optionally, the real-time bearing rate of the coverage area is calculated by adopting the following formula:
wherein Z is the real-time bearing rate of the coverage area.
In the embodiment of the present invention, optionally, the total real-time bearing rate of the N coverage areas is calculated by adopting the following formula:
wherein Z0 is the total real-time bearer of the N coverage areas.
The following describes a configuration method of the distributed coverage system according to the embodiment of the present invention, taking N equal to 2 as an example.
In this embodiment of the present invention, optionally, the generating a control signal according to the information of the number of users in the N coverage areas includes at least one of:
when the real-time bearing rate of the first coverage area and the real-time bearing rate of the second coverage area are both smaller than a first threshold value, and the total real-time bearing rate of the 2 coverage areas is smaller than a second threshold value, generating a first control signal, wherein the first control signal is used for adjusting the state of each switch in the switch group, so that the connection between a first radio frequency port of the radio frequency unit and the radio frequency bridge is disconnected, the connection between a second radio frequency port of the radio frequency unit and the radio frequency bridge is communicated, the connection between the first antenna group and the second antenna group and the radio frequency bridge is communicated, and the bandwidth of a cell corresponding to the first radio frequency port is larger than the bandwidth of a cell corresponding to the second radio frequency port;
when the real-time bearing rate of the first coverage area and the real-time bearing rate of the second coverage area are smaller than a first threshold, and the total real-time bearing rate of the 2 coverage areas is larger than or equal to a second threshold and smaller than a third threshold, generating a second control signal, wherein the second control signal is used for adjusting the state of each switch in the switch group, so that a first radio frequency port of the radio frequency unit is communicated with the connection of the radio frequency bridge, a second radio frequency port of the radio frequency unit is disconnected with the connection of the radio frequency bridge, and the first antenna group and the second antenna group are communicated with the connection of the radio frequency bridge;
when the real-time bearing rate of the first coverage area and the real-time bearing rate of the second coverage area are smaller than a first threshold, and the total real-time bearing rate of the 2 coverage areas is larger than or equal to a third threshold and smaller than a fourth threshold, generating a third control signal, wherein the third control signal is used for adjusting the state of each switch in the switch group, so that a first radio frequency port of the radio frequency unit is communicated with the first antenna group through the first connecting wire, and a second radio frequency port of the radio frequency unit is communicated with the second antenna group through the second connecting wire;
when the real-time bearing rate of the first coverage area or the real-time bearing rate of the second coverage area is greater than or equal to a first threshold value, generating a fourth control signal, wherein the fourth control signal is used for adjusting the state of each switch in the switch group, so that the connection between the first radio frequency port and the second radio frequency port of the radio frequency unit and the radio frequency bridge is disconnected, and the connection between the first antenna group and the second antenna group and the radio frequency bridge is connected.
In the embodiment of the present invention, the values of the first threshold, the second threshold, the third threshold, and the fourth threshold may be set as required.
In the embodiment of the invention, when the total capacity requirement is lower, one of the cells can be closed, so that the communication requirement is met, and consumption and energy can be reduced; when the capacity requirements in different coverage areas are not uniform, dual carrier coverage can be realized, the bearing capacity is improved, and the capacity expansion requirement is met.
Taking the distributed coverage system in fig. 4 as an example, a configuration method of the distributed coverage system according to an embodiment of the present invention will be described.
Referring to fig. 6 to fig. 10, fig. 6 is a flow chart of a configuration method of a distributed coverage system according to an embodiment of the present invention, and fig. 7 to fig. 10 are schematic diagrams of working states of the distributed coverage system under different states according to an embodiment of the present invention.
(1) Referring to fig. 6 and fig. 7, when the real-time bearer rate Z1 of the first coverage area and the real-time bearer rate Z2 of the second coverage area are both smaller than a first threshold (e.g., 50%), and the total real-time bearer rate Z0 of the 2 coverage areas is smaller than a second threshold (e.g., 20%), only one cell needs to be shared by the 2 coverage areas to meet the requirement. It is assumed that the bandwidth of the cell 1 is greater than the bandwidth of the cell 2, at this time, a first control signal is generated, where the first control signal is used to set the states of the moving ends of the first switch, the second switch, the third switch and the fourth switch to be up, down and up (which may be referred to as state 1), so that the connection between the first rf port of the rf unit and the rf bridge is disconnected, the connection between the second rf port of the rf unit and the rf bridge is connected, and the connection between the first antenna group and the second antenna group and the rf bridge is connected, that is, the power of the cell 2 is distributed to the coverage area 1 and the coverage area 2 by the rf bridge in an average manner, that is, all the user terminals in the coverage areas only access the cell 2.
(2) Referring to fig. 6 and 8, when the real-time bearer Z1 of the first coverage area and the real-time bearer Z2 of the second coverage area are both smaller than the first threshold (e.g., 50%), and the total real-time bearer Z0 of the 2 coverage areas is greater than or equal to the second threshold (e.g., 20%) and smaller than the third threshold (e.g., 40%), only one cell with larger bandwidth needs to be shared by the 2 coverage areas. It is assumed that the bandwidth of the cell 1 is greater than the bandwidth of the cell 2, at this time, a second control signal is generated, where the second control signal is used to set the states of the moving ends of the first switch, the second switch, the third switch and the fourth switch to be lower, lower and upper (which may be referred to as state 2) respectively, so that the first rf port of the rf unit is connected to the rf bridge, the second rf port of the rf unit is disconnected from the rf bridge, and the first antenna group and the second antenna group are connected to the rf bridge, that is, the signal power of the cell 1 is distributed to the coverage area 1 and the coverage area 2 by the rf bridge in an average manner, that is, all the user terminals in the two coverage areas are only connected to the cell 1.
(3) Referring to fig. 6 and fig. 9, when the real-time bearer Z1 of the first coverage area and the real-time bearer Z2 of the second coverage area are both smaller than a first threshold (e.g. 50%), and the total real-time bearer Z0 of the 2 coverage areas is greater than or equal to a third threshold (e.g. 40%) and smaller than a fourth threshold (e.g. 50%), the 2 coverage areas should not share a cell and should be covered with cell 1 and cell 2 respectively, at this time, a third control signal is generated, where the third control signal is used to set the states of the active ends of the first switch, the second switch, the third switch and the fourth switch to be up, down, up, down (which may be referred to as state 3), so that the first radio frequency port of the radio frequency unit and the first antenna group are connected through the first connection line, and the second radio frequency port of the radio frequency unit and the second antenna group are connected through the second connection line; that is, cell 1 is directly connected to coverage area 1, cell 2 is directly connected to coverage area 2, and the radio frequency bridge is not active.
(4) Referring to fig. 6 and fig. 10, when the real-time bearer rate Z1 of the first coverage area or the real-time bearer rate Z2 of the second coverage area is greater than or equal to a first threshold (e.g., 50%), it is indicated that the number of user terminals in the coverage area 1 or the coverage area 2 is greater, and the coverage area 1 or the coverage area 2 should be covered by the cell 1 and the cell 2 simultaneously to expand the capacity. At this time, a fourth control signal is generated, where the fourth control signal is used to set the states of the moving ends of the first switch, the second switch, the third switch and the fourth switch to be lower, upper, lower and upper (which may be referred to as state 4), so that the connection between the first radio frequency port and the second radio frequency port of the radio frequency unit and the radio frequency bridge is disconnected, and the connection between the first antenna group and the second antenna group and the radio frequency bridge is connected, that is, the signal power of the cell 1 is evenly distributed to the coverage area 1 and the coverage area 2 through the radio frequency bridge; the signal power of the cell 2 is also evenly distributed into the coverage area 1 and the coverage area 2 through the radio frequency bridge; the cell 1 and the cell 2 are not interfered with each other in circuits such as a radio frequency bridge and the like due to different frequency bands. Both coverage areas now have dual carrier coverage for cell 1 and cell 2.
The four states involved in the above embodiments can be seen in table 1. It is assumed that the bandwidth of cell 1 is greater than the bandwidth of cell 2.
Table 1 details of the four states
The embodiment of the invention can be applied to the situation of a plurality of carriers in the same frequency band, for example, 100MHz+60MHz dual carrier in the 2.6GHz frequency band; the method can also be used for the situation of multiple carriers in different frequency bands, such as 2.6GHz+4.9GHz dual-band multi-carrier; and the method can also be used for the situation of co-building and sharing of different operators, for example, double carriers in the same frequency band of 3400 MHz-3500 MHz and 3500 MHz-3600 MHz.
The embodiment of the invention has the following advantages:
1) Compared with the prior art, the method improves flexibility, and adjusts the allocation of communication resources more flexibly for two situations of greatly reducing the number of the user terminals and temporarily increasing the number of the user terminals in a partial area. In the conventional deployment architecture, cell 1 is fixedly served in coverage area 1 and cell 2 is fixedly served in coverage area 2, regardless of the actual number of user terminals.
2) When the number of user terminals in two coverage areas is greatly reduced, the coverage requirement can be met by only opening one cell, and the energy consumption can be saved.
3) When the number of terminals in a partial area is temporarily increased, two carriers of the cell 1 and the cell 2 can be made to cover the area at the same time, so that the capacity is improved.
Referring to fig. 11, the embodiment of the present invention further provides a base station 110, which includes a processor 111, a memory 112, and a computer program stored in the memory 112 and capable of running on the processor 111, where the computer program when executed by the processor 111 implements each process of the above-mentioned configuration method embodiment of the distributed coverage system, and can achieve the same technical effect, and for avoiding repetition, a detailed description is omitted herein.
The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements each process of the above-mentioned configuration method embodiment of the distributed coverage system, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (12)
1. A distributed overlay system, comprising:
the radio frequency unit comprises N radio frequency ports, N is an integer greater than or equal to 2, and the N radio frequency ports are respectively used for outputting signals of N frequency bands;
the antenna system comprises N antenna groups, wherein the N antenna groups are respectively used for being deployed to N coverage areas;
the control module is used for generating control signals according to the real-time user bearing information of the N coverage areas;
the adjusting module is arranged between the radio frequency unit and the N antenna groups, is connected with the control module and is used for adjusting the signal power input from the radio frequency unit to the N antenna groups according to the control signal.
2. The distributed coverage system of claim 1, wherein the adjustment module comprises a power distribution unit, a first switch set, and a second switch set;
the first switch group is arranged between the power distribution unit and N radio frequency ports of the radio frequency unit, the second switch group is arranged between the power distribution unit and N antenna groups, and the states of the switches in the first switch group and the second switch group are controlled by the control signals.
3. The distributed overlay system of claim 2, wherein,
the power distribution unit comprises N input ports and N output ports;
the first switch group comprises N switches, wherein each switch comprises a fixed end and two movable ends, the fixed end is connected with one radio frequency port of the radio frequency unit, one movable end is connected with one input port of the power distribution unit, and the other movable end is connected with the movable end of one switch of the second switch group through a connecting wire;
the second switch group comprises N switches, wherein each switch comprises a fixed end and two movable ends, the fixed ends are connected with one antenna group, one movable end is connected with one output port of the power distribution unit, and the other movable end is connected with the movable end of one switch of the first switch group through a connecting wire.
4. A distributed coverage system according to claim 2 or 3, wherein the power distribution unit comprises a radio frequency bridge.
5. The distributed coverage system of claim 4, wherein N is equal to 2;
the radio frequency unit comprises a first radio frequency port and a second radio frequency port;
the 2 antenna groups are a first antenna group and a second antenna group respectively;
the radio frequency bridge comprises a first input port, a second input port, a first output port and a second output port;
the first switch group includes:
the first switch comprises a fixed end and two movable ends, wherein the fixed end is connected with a first radio frequency port of the radio frequency unit, one movable end is connected with a first input port of the radio frequency bridge, and the other movable end is connected with one end of a first connecting wire;
the second switch comprises a fixed end and two movable ends, wherein the fixed end is connected with a second radio frequency port of the radio frequency unit, one movable end is connected with a second input port of the radio frequency bridge, and the other movable end is connected with one end of a second connecting wire;
the second switch group includes:
the third switch comprises a fixed end and two movable ends, wherein the fixed end is connected with the first antenna group, one movable end is connected with a first output port of the radio frequency bridge, and the other movable end is connected with the other end of the first connecting wire;
and the fourth switch comprises a fixed end and two movable ends, wherein the fixed end is connected with the second antenna group, one movable end is connected with a second output port of the radio frequency bridge, and the other movable end is connected with the other end of the second connecting wire.
6. A method of configuring a distributed overlay system, applied to a distributed overlay system according to any one of claims 1-5, the method comprising:
and generating control signals according to the real-time user bearing information of the N coverage areas, wherein the control signals are used for adjusting the signal power input to the N antenna groups from the radio frequency unit.
7. The method of claim 6, wherein the step of providing the first layer comprises,
the real-time user quantity information of the N coverage areas comprises at least one of the following: real-time bearing rate of each coverage area, and total real-time bearing rate of the N coverage areas.
8. The method of claim 7, wherein the real-time bearer rate for the coverage area is calculated using the formula:
wherein Z is the real-time bearing rate of the coverage area.
9. The method of claim 7, wherein the total real-time bearer rate for the N coverage areas is calculated using the formula:
wherein Z0 is the total real-time bearer of the N coverage areas.
10. The method of claim 7, applied to the distributed overlay system of claim 5;
the 2 coverage areas include a first coverage area and a second coverage area;
the generating the control signal according to the user quantity information of the N coverage areas comprises at least one of the following:
when the real-time bearing rate of the first coverage area and the real-time bearing rate of the second coverage area are both smaller than a first threshold value, and the total real-time bearing rate of the 2 coverage areas is smaller than a second threshold value, generating a first control signal, wherein the first control signal is used for adjusting the state of each switch in the switch group, so that the connection between a first radio frequency port of the radio frequency unit and the radio frequency bridge is disconnected, the connection between a second radio frequency port of the radio frequency unit and the radio frequency bridge is communicated, and the connection between a first antenna group and the second antenna group and the radio frequency bridge is communicated, wherein the bandwidth of a cell corresponding to the first radio frequency port is larger than the bandwidth of a cell corresponding to the second radio frequency port;
when the real-time bearing rate of the first coverage area and the real-time bearing rate of the second coverage area are smaller than a first threshold, and the total real-time bearing rate of the 2 coverage areas is larger than or equal to a second threshold and smaller than a third threshold, generating a second control signal, wherein the second control signal is used for adjusting the state of each switch in the switch group, so that a first radio frequency port of the radio frequency unit is communicated with the connection of the radio frequency bridge, a second radio frequency port of the radio frequency unit is disconnected with the connection of the radio frequency bridge, and the first antenna group and the second antenna group are communicated with the connection of the radio frequency bridge;
when the real-time bearing rate of the first coverage area and the real-time bearing rate of the second coverage area are smaller than a first threshold, and the total real-time bearing rate of the 2 coverage areas is larger than or equal to a third threshold and smaller than a fourth threshold, generating a third control signal, wherein the third control signal is used for adjusting the state of each switch in the switch group, so that a first radio frequency port of the radio frequency unit is communicated with the first antenna group through a first connecting wire, and a second radio frequency port of the radio frequency unit is communicated with the second antenna group through a second connecting wire;
when the real-time bearing rate of the first coverage area or the real-time bearing rate of the second coverage area is greater than or equal to a first threshold value, generating a fourth control signal, wherein the fourth control signal is used for adjusting the state of each switch in the switch group, so that the connection between the first radio frequency port and the second radio frequency port of the radio frequency unit and the radio frequency bridge is disconnected, and the connection between the first antenna group and the second antenna group and the radio frequency bridge is connected.
11. A base station, comprising: processor, memory and a program stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the method of configuring a distributed overlay system as claimed in any one of claims 6 to 10.
12. A computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method of configuring a distributed overlay system according to any one of claims 6 to 10.
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