CN104703194A - Indoor distribution system and realizing method thereof - Google Patents
Indoor distribution system and realizing method thereof Download PDFInfo
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- CN104703194A CN104703194A CN201310655609.8A CN201310655609A CN104703194A CN 104703194 A CN104703194 A CN 104703194A CN 201310655609 A CN201310655609 A CN 201310655609A CN 104703194 A CN104703194 A CN 104703194A
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Abstract
本发明公开了一种室内分布系统实现方法，将室内分布系统信号源覆盖区域划分为内区和外区；其中，所述内区由室内分布系统信号源提供信号，所述外区与室内分布系统信号源可控连接；根据室内外信号测量参数将外区与室内分布系统信号源连通或断开；本发明同时还公开了一种室内分布系统。
The invention discloses an implementation method of an indoor distribution system, which divides the coverage area of the signal source of the indoor distribution system into an inner area and an outer area; The signal source of the system is controllably connected; the outer area is connected or disconnected with the signal source of the indoor distribution system according to the indoor and outdoor signal measurement parameters; the invention also discloses an indoor distribution system.
Description
Technical Field
The invention relates to an indoor signal coverage technology in mobile communication, in particular to an indoor distribution system and an implementation method thereof.
Background
With the rapid development of mobile cellular communication technology, a large number of mobile users no longer satisfy good outdoor mobile communication services, but also require to enjoy high-quality mobile communication services indoors.
Modern buildings mostly use reinforced concrete as a framework, and are completely closed to finish exterior decoration, so that the shielding and attenuation of radio signals are particularly severe. To address this problem, the most effective method currently is to install indoor distribution systems within the building.
In the peripheral window area of a building in an indoor distribution system application, the fluctuation amplitude of the received outdoor base station signal strength is large due to the following reasons: 1) an operator carries out network optimization or capacity expansion planning, the outdoor base station layout or engineering parameters change, and outdoor signals received by an indoor window area change difficultly in prediction or control; 2) different communication systems have different frequency bands, and outdoor networks are usually designed independently, so that even in the same window area, the signal strength of different systems is different.
Disclosure of Invention
In view of the above, it is desirable to provide an indoor distribution system and an implementation method thereof, which can provide high-quality mobile communication signals for the coverage area of the indoor distribution system in a preferable manner.
The technical scheme of the invention is realized as follows:
the embodiment of the invention provides a method for realizing an indoor distribution system, which comprises the following steps:
dividing a signal source coverage area of an indoor distribution system into an inner area and an outer area; the inner area is provided with signals by an indoor distribution system signal source, and the outer area is controllably connected with the indoor distribution system signal source; and connecting or disconnecting the outer area with the signal source of the indoor distribution system according to the indoor and outdoor signal measurement parameters.
The embodiment of the invention provides an indoor distribution system, which comprises: the system comprises an indoor distribution system signal source, a controllable connector and a monitoring server; the indoor distribution system signal source is used for providing communication signals for the coverage area of the indoor distribution system signal source; the controllable connector is used for controllably connecting the outer area with the signal source of the indoor distribution system; the monitoring server is used for dividing an indoor distribution system signal source coverage area into an inner area and an outer area, wherein the inner area is provided with signals by the indoor distribution system signal source; and the outdoor area is connected or disconnected with the signal source of the indoor distribution system according to the indoor and outdoor signal measurement parameters.
The indoor distribution system and the realization method thereof provided by the embodiment of the invention divide the signal source coverage area of the indoor distribution system into an inner area and an outer area, wherein the signal source of the indoor distribution system provides a signal for the inner area, and the outer area is in controllable connection with the signal source of the indoor distribution system; connecting or disconnecting the outer area with the signal source of the indoor distribution system according to the indoor and outdoor signal measurement parameters; in this way, it can be ensured that the coverage area, in particular the outer area, of the indoor distribution system is provided with mobile communication signals of high quality in a preferred manner.
In addition, in the indoor distribution system provided by the embodiment of the invention, the used controllable connector is a passive device, so that the quality problem which is easy to occur when the active device is used for a long time can be avoided, and meanwhile, the operation and maintenance cost can be reduced; moreover, the indoor distribution system provided by the embodiment of the invention is mainly applied to indoor and outdoor scenes with the same frequency, and is more suitable for the current application environment.
Drawings
Fig. 1 is a schematic flow chart of an implementation method of an indoor distribution system according to at least one embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a first connection mode of a signal source of an indoor distribution system connecting an inner zone and an outer zone through a controllable connector according to at least one embodiment of the present invention;
FIG. 3 is a schematic diagram of a second connection mode of a signal source of an indoor distribution system connecting an inner zone and an outer zone through a controllable connector according to at least one embodiment of the present invention;
FIG. 4 is a schematic diagram of a third connection mode in which a signal source of an indoor distribution system is connected to an inner area and an outer area through a controllable connector according to at least one embodiment of the present invention;
FIG. 5 is a block diagram of a controllable two-phase switch in accordance with at least one embodiment of the present invention;
FIG. 6 is a block diagram of a controllable attenuator in accordance with at least one embodiment of the present invention;
FIG. 7 is a schematic diagram of a manner in which a frequency splitter is disposed on a connection line between a signal source of an indoor distribution system and a controllable connector in accordance with at least one embodiment of the present invention;
fig. 8 is a diagram illustrating an example of a practical application of a manner in which a frequency splitter may be disposed on a connection line between a signal source of an indoor distribution system and a controllable connector in accordance with at least one embodiment of the present invention;
fig. 9 is a schematic structural diagram of an indoor distribution system according to at least one embodiment of the present invention.
Detailed Description
In the embodiment of the invention, the area covered by the signal source of the indoor distribution system is divided into an inner area and an outer area; the inner area is provided with signals by an indoor distribution system signal source, and the outer area is controllably connected with the indoor distribution system signal source; and connecting or disconnecting the outer area with the signal source of the indoor distribution system according to the indoor and outdoor signal measurement parameters.
The invention is further described in detail below with reference to the figures and the specific embodiments.
At least one embodiment of the present invention provides an indoor distribution system implementation method, as shown in fig. 1, the method includes the following steps:
step 101: dividing a signal source coverage area of an indoor distribution system into an inner area and an outer area; the inner area is provided with signals by an indoor distribution system signal source, and the outer area is controllably connected with the indoor distribution system signal source;
specifically, when an indoor distribution system is arranged in an indoor area, the indoor area covered by a signal source of the indoor distribution system is divided into an inner area and an outer area; the inner area is an area with weak outdoor signals, namely, the building penetration loss is greater than a specified threshold, and the area with the outdoor signal receiving intensity obtained through measurement lower than the specified receiving intensity threshold by 15-25 dB is generally divided into the inner area; in practical application, the receiving intensity of an indoor area close to a window area is generally used as the specified receiving intensity threshold, and an inner area is generally an area with weaker outdoor signal coverage, so that the indoor area is suitable for being covered by an indoor distribution system signal source all the time; then, dividing other indoor areas except the inner area into outer areas, wherein the outer areas are generally areas with stronger outdoor signals, close to doors and windows indoors and smaller building penetration loss;
furthermore, the outer zone can be subdivided into a plurality of outer zone sub-zones according to the number of the main cells to which the outdoor signals received by the outer zone belong;
specifically, the outer zone may be divided into outer zone sub-zones with the number equal to or more than the number of main cells according to the number of main cells to which the outdoor signal received by the outer zone belongs; for example, when the outdoor signal received by the outer area is from only one outdoor cell, the outer area is divided into one or more outer sub-partitions, if the outdoor signal received by the outer area is from three outdoor cells, the outer area is divided into three or more outer sub-partitions, and so on;
the number of the main cells to which the outdoor signals received by the outer zone belong is dynamically changed, and the change is difficult to predict, so the outer zone can be divided into a plurality of outer zone sub-zones with the same size as the area of the designated outer zone sub-zone according to the area of the designated outer zone sub-zone;
in practical applications, factors such as actual needs and a coverage area of a main cell to which an outdoor signal belongs may be comprehensively considered, and a plurality of outer zone sub-zones are divided corresponding to the main cell to which a certain outdoor signal belongs, so as to provide a high-quality communication signal better.
Here, the outdoor signal reception strength may be measured by a drive test terminal carried by a tester for outdoor signal reception power strength of each area within a target area, the outdoor signal reception strength of different areas is dynamically changed, then a drive test software is used to record a test result, a geographical distribution graph of the received signal strength is formed, and the signal source coverage area of the indoor distribution system is divided into an inner area and an outer area according to the above-described method according to the change of the signal strength.
In practical application, mobile communication signals of various systems are generally adopted in an indoor distribution system, and after being combined by a frequency band combiner, the mobile communication signals are transmitted by a Remote Radio Unit (RRU) of the mobile communication system and are covered to an indoor area; in at least one embodiment of the present invention, the indoor distribution system signal source is referred to as the RRU at the present stage; at present, operators also manage mobile communication signals of one standard in an indoor distribution system independently, that is, there is more than one signal source in the indoor distribution system; accordingly, the method provided by at least one embodiment of the present invention can be used for setting the indoor distribution system for each indoor distribution system signal source.
In at least one embodiment of the invention, the indoor distribution system signal source can be directly connected with the inner area in a wired mode, or the indoor distribution system signal source is connected with the inner area after passing through the power divider or the coupler; that is, in at least one embodiment of the present invention, the indoor distribution system signal source coverage is always adopted for the inner area with weaker outdoor signal coverage; for the outer area with better outdoor signal coverage, independent switching control is needed according to the indoor and outdoor signal measurement parameters.
Furthermore, in at least one embodiment of the present invention, the outer area is further divided into a plurality of outer area sub-partitions, and the signal coverage of the outer area is finely controlled by individually controlling each outer area sub-partition.
In at least one embodiment of the present invention, the signal source of the indoor distribution system is connected to the inner area and the outer area through the controllable connector, which may include but is not limited to the following three connection modes:
A) first connection mode
In the first connection mode, the signal source of the indoor distribution system is directly connected with the inner area, and then is connected with each outer subarea through the inner area, specifically, the inner area is connected with each outer subarea through the controllable connector; a schematic view of the first connection is shown in fig. 2.
B) Second connection mode
In the second connection mode, after passing through a power divider or a coupler, a signal source of an indoor distribution system divides signals into two paths, namely a signal 1 and a signal 2, directly connects the signal 1 with an inner zone, and connects the signal 2 with each outer zone subarea through a controllable connector; a schematic diagram of a second connection is shown in fig. 3.
C) Third connection mode
In the third connection mode, the signal source of the indoor distribution system is directly connected with the inner area and is respectively connected with each outer subarea through the controllable connector; a schematic diagram of the third connection is shown in fig. 4.
Specifically, in at least one embodiment of the present invention, no matter which connection method is adopted, the inner area and the outer area subarea, or each outer area subarea and the indoor distribution system signal source are connected in a wired manner.
The controllable connection described in at least one embodiment of the present invention includes, but is not limited to, the following two ways:
first, by a controllable two-phase switch. Specifically, when the controllable two-phase switch is connected, the controllable two-phase switch can be connected or disconnected with the signal source of the indoor distribution system by switching the connection state of the switch in the controllable two-phase switch, and the basic structure of the controllable two-phase switch is shown in fig. 5; when the controllable two-phase switch is turned on, the switch is connected to the direction of the outer subarea, and the outer subarea is communicated with the signal source of the indoor distribution system; when the controllable two-phase switch is turned off, the switch is connected with a fixed matched load, and the outer sub-zone is disconnected with the indoor distribution system through signals. The controllable two-phase switch can be a mechanical switch or an electronic control switch; wherein, the mechanical switch needs to be controlled by hand, and the electronic control switch can be used for automatic control.
And the second one is connected through a controllable attenuator. Specifically, the basic structure of the controllable attenuator is as shown in fig. 6, when the controllable attenuator is turned on, and the attenuation value of the indoor distribution system signal is the lowest (close to zero), the outer sub-partition is in signal communication with the indoor distribution system; when the controllable attenuator is closed, the attenuation value of the indoor distribution system signal is the highest, and the outer subarea is completely disconnected with the indoor distribution system signal; the attenuator may be a mechanically controlled attenuator, which requires manual control, or an electronically controlled attenuator, which may be used for automatic control.
Furthermore, at least one embodiment of the present invention may further include a frequency screening circuit to control the outer sub-partition to communicate with the indoor distribution system signals of different frequency bands; specifically, a frequency band splitter, a controllable connector and a frequency band combiner are arranged on a connection line between an indoor distribution system signal source and an outer sub-partition, the frequency band splitter, the controllable connector and the frequency band combiner are arranged in a manner shown in fig. 7, a signal from the indoor distribution system signal source passes through one frequency band splitter to form two branches, namely an upper branch and a lower branch, the upper branch is an indoor distribution system signal of a specified frequency band, and the lower branch is a signal of other frequency bands; then, the signals on the upper shunt and the lower shunt are converged to the frequency band combiner and then connected to the outer sub-partition; set up controllable connector on the upper branch way between frequency channel branching unit and frequency channel combiner to through switching controllable connector state, come the indoor distribution system signal frequency channel of control for outer subregion provides: when the controllable connector is opened, the outer subarea is connected with signal sources of indoor distribution systems of all frequency bands; when the controllable connector is closed, the outer sub-section is only in signal communication with the indoor distribution system of the other frequency band.
At least one embodiment of the present invention is applicable to various Mobile communication systems, such as Code Division Multiple Access/Evolution Data Only (CDMA/EVDO), Universal Mobile Telecommunications System (UMTS), Frequency Division duplex Long Term Evolution (FDD-LTE), and the like. Currently, mobile communication operators usually operate multiple networks simultaneously, for example, there are three main types of public wireless networks operated by a certain operator: the 2G/3G mobile communication system adopts a CDMA mode at a frequency band of 800MHz, the 4G mobile communication system adopts an LTE mode at a frequency band of 2.1GHz, and a Wireless Local Area Network (WLAN) is at a frequency band of 2.4 GHz. With reference to the scheme shown in fig. 7, under normal conditions, the three mobile communication networks share an indoor distribution system, and a signal source of the indoor distribution system includes signals of three different mobile communication systems, and the three signals are combined by a frequency band combiner and then transmitted by a signal source; except that the WLAN only has an indoor network and does not need to be controlled by a controllable connector, the frequency band difference of the CDMA and LTE systems is large, the outdoor network topology is possibly different, and independent control is proposed; thus, the structure of fig. 7 can be refined to the structure of fig. 8, in which controllable connector a controls the connection of LTE signals and controllable connector B controls the connection of CDMA signals.
Step 102: connecting or disconnecting the outer area with the signal source of the indoor distribution system according to the indoor and outdoor signal parameters;
here, the indoor and outdoor signal parameters include: indoor pilot power, outdoor strongest cell pilot power, indoor distribution system coverage edge field strength threshold, signal-to-noise ratio using only indoor distribution system signals, and signal-to-noise ratio using only outdoor signals;
specifically, the connecting or disconnecting the outer area and the signal source of the indoor distribution system according to the indoor and outdoor signal parameters includes:
in the first case:
when the current state of the outer sub-partition is to use the outdoor signal, if the following condition a1 and condition B1 are satisfied simultaneously, the outer sub-partition is connected to the indoor distribution system signal source:
a1, indoor pilot power > indoor distribution system coverage edge field intensity threshold;
b1, signal-to-noise ratio using only indoor distribution system signal > signal-to-noise ratio using only outdoor signal + Y;
wherein Y is hysteresis quantity, and the value range of Y is 1-4dB, so as to avoid ping-pong switching.
When the outer sub-zone is currently using the indoor distribution system signal, if the following condition a2 and condition B2 are simultaneously satisfied, the outer sub-zone is disconnected from the indoor distribution system signal source:
a2, outdoor strongest cell pilot power > indoor distribution system coverage edge field strength threshold;
b2, signal-to-noise ratio using only outdoor signals > signal-to-noise ratio using only indoor distribution system signals + Y;
y is hysteresis quantity, and the value range of Y is 1-4dB, so that ping-pong switching is avoided, and at the moment, an outer sub-zone only uses outdoor signals;
in addition, since the indoor distribution system has various practical applications, in practical implementation, the above-mentioned a1 and B1 are not necessarily used as the judgment conditions for performing disconnection, and the above-mentioned a2 and B2 are not necessarily used as the judgment conditions for performing connection, but only the above-mentioned a1 and B1 may be used as the judgment conditions for performing disconnection, and the outdoor area is kept connected to the indoor distribution system signal source in the rest cases; or, with the above a2 and B2 as the determination conditions for performing communication, the outer zone is kept disconnected from the indoor distribution system signal source in the rest cases; therefore, the connection or disconnection of the outer area and the signal source of the indoor distribution system according to the indoor and outdoor signal parameters may further include the following second and third conditions:
in the second case:
when the current state of the outer zone is using the outdoor signal, if the following condition A1 and condition B1 are satisfied simultaneously, the outer zone is connected to the indoor distribution system signal source:
a1, indoor pilot power > indoor distribution system coverage edge field intensity threshold;
b1, signal-to-noise ratio using only indoor distribution system signal > signal-to-noise ratio using only outdoor signal + Y;
wherein Y is hysteresis quantity, and the value range of Y is 1-4dB, so as to avoid ping-pong switching.
Otherwise, the outer zone is kept disconnected from the signal source of the indoor distribution system.
In the third case:
when the outer zone is currently using the indoor distribution system signal, if the following condition a2 and condition B2 are simultaneously satisfied, the outer zone is disconnected from the indoor distribution system signal source:
a2, outdoor strongest cell pilot power > indoor distribution system coverage edge field strength threshold;
b2, signal-to-noise ratio using only outdoor signals > signal-to-noise ratio using only indoor distribution system signals + Y;
y is hysteresis, and the value range of Y is 1-4dB, so that ping-pong switching is avoided, and at the moment, an outer region only uses an outdoor signal;
and in other cases, the outer zone is communicated with the signal source of the indoor distribution system.
It should be noted that the value of Y is not limited to the range provided by the embodiment of the present invention; in practical application, the value range of Y is often adjusted according to the network optimization.
In practical applications, the "coverage edge field strength threshold of the indoor distribution system" which is one of the decision conditions for switching the controllable connector state is a basic coverage index when the indoor distribution system is designed, for example, for an FDD-LTE system, the parameter value is usually characterized by a downlink reference signal received strength RSRP, where RSRP = -105dBm or so; for EVDO systems, this parameter value is typically characterized by a receive power Rx, which Rx = -about 90 dBm; and a second switching judgment condition is a hysteresis parameter Y related to the signal-to-noise ratio, so that the value range of the Y value is 1-4dB in order to avoid ping-pong switching of the controllable connector.
In step 102, the state of the controllable connector needs to be periodically updated according to the change condition of the outdoor signal, and at least one embodiment of the present invention provides the following two state updating methods:
first, manual periodic maintenance control: performing indoor drive test on the outer zones of the indoor distribution system every other period, and testing and recording indoor and outdoor signal parameters in each outer zone subarea; then, according to the above switching decision condition, determining whether each outer zone sub-zone starts the indoor distribution system signal, and finally implementing.
The second is that the automatic control: one or more distributed automatic measurement reporting terminals are arranged in each outer subarea, the terminals periodically and automatically report indoor and outdoor signal parameters to the monitoring server, and the monitoring server controls the state of each controllable connector according to the switching judgment condition.
In order to implement the above method, at least one embodiment of the present invention provides an indoor distribution system, as shown in fig. 9, which is a schematic diagram of a basic composition of the system, and the system includes: an indoor distribution system signal source 91, a controllable connector 92 and a monitoring server 93; wherein,
the indoor distribution system signal source 91 is configured to provide a communication signal for an indoor distribution system signal source coverage area;
the controllable connector 92 is used for controllably connecting the outer zone with the signal source of the indoor distribution system;
here, the controllable connector 92 is for controllably connecting an outer zone with a signal source of an indoor distribution system, and includes: the controllable connector 92 is used for controllably connecting the outer zone and the inner zone, so that the outer zone is connected with the signal source of the indoor distribution system through the inner zone; alternatively, the controllable connector 92 is used to controllably connect the outer zone directly to the signal source of the indoor distribution system.
Further, the outer zone may be divided into a plurality of outer zone sub-zones, and the controllable connector 92 is used to controllably connect the outer zone with the signal source of the indoor distribution system, including: the controllable connector is used for respectively connecting each outer subarea with the inner subarea, so that each outer subarea is connected with the indoor distribution system signal source through the inner subarea; or, the controllable connector is used for directly connecting each outer subarea with the signal source of the indoor distribution system; or the controllable connector is used for connecting the indoor distribution system signal source after passing through the power divider or the coupler with each outer subarea.
Here, the controllable connector may employ a controllable two-phase switch, or a controllable attenuator.
The monitoring server 93 is configured to divide an indoor distribution system signal source coverage area into an inner area and an outer area, where the inner area is provided with a signal by an indoor distribution system signal source, and the outer area is controllably connected to the indoor distribution system signal source; and the outdoor area is connected or disconnected with the signal source of the indoor distribution system according to the indoor and outdoor signal measurement parameters.
Specifically, the monitoring server 93 is configured to divide an indoor distribution system signal source coverage area into an inner area and an outer area, and includes: the monitoring server 93 is used for dividing an area where the outdoor signal receiving intensity obtained through measurement is lower than a specified receiving intensity threshold by 15-25 dB into an inner area, and dividing signal source coverage areas of other indoor distribution systems outside the inner area into outer areas.
The monitoring server 93 is further configured to divide the outer area into outer area sub-partitions with the number equal to or more than the number of the outdoor main cells according to the number of the outdoor main cells to which the outdoor signals received by the outer area belong; or dividing the outer area into a plurality of outer area sub-partitions with the same size as the area of the designated outer area sub-partition according to the area of the designated outer area sub-partition; in practical applications, the monitoring server 93 may further divide a plurality of outer sub-partitions corresponding to a main cell to which an outdoor signal belongs according to actual needs or factors such as a coverage area of the main cell to which the outdoor signal belongs, so as to better provide a high-quality communication signal.
Further, the monitoring server 93 is further configured to connect or disconnect an outer area and an indoor distribution system signal source according to indoor and outdoor signal parameters;
wherein the indoor and outdoor signal measurement parameters include: indoor pilot power, indoor distribution system coverage edge field strength threshold, signal to noise ratio using only indoor distribution system signals, signal to noise ratio using only outdoor signals, and outdoor strongest cell pilot power;
the connecting or disconnecting the outer zone and the indoor distribution system signal source according to the indoor and outdoor signal parameters comprises: when the current state of the outer sub-partition is using outdoor signals, the monitoring server 93 is used for judging whether the indoor pilot power is greater than the field intensity threshold of the coverage edge of the indoor distribution system, and judging whether the signal-to-noise ratio of the signals using the indoor distribution system is greater than the signal-to-noise ratio + Y of the signals using only the outdoor signals, wherein Y is a hysteresis quantity, and the value range of Y is 1-4dB, so that ping-pong switching is avoided, and if the current state of the outer sub-partition is using the outdoor signals, the outer sub-partition is communicated with the; when the outer sub-partition is currently using the indoor distribution system signal, the monitoring server 93 is configured to determine whether the pilot power of the strongest outdoor cell is greater than the coverage edge field strength threshold of the indoor distribution system, and determine whether the signal-to-noise ratio of only using the outdoor signal is greater than the signal-to-noise ratio + Y of only using the indoor distribution system signal, where Y is a hysteresis quantity, and a value range of Y is 1-4dB, so as to avoid ping-pong handover, and if the signal is satisfied at the same time, disconnect the outer sub-partition from the indoor distribution system signal source; or,
the monitoring server is used for judging whether the indoor pilot frequency power is greater than the field intensity threshold of the coverage edge of the indoor distribution system, and judging whether the signal-to-noise ratio of the signal using the indoor distribution system is greater than the signal-to-noise ratio + Y of the signal only using the outdoor signal, wherein Y is a hysteresis quantity, the value range of Y is 1-4dB, the purpose is to avoid ping-pong switching, and if yes, the outer area is communicated with the signal source of the indoor distribution system; otherwise, disconnecting the outer subarea from the indoor distribution system signal source; or,
the monitoring server is used for judging whether the pilot power of the strongest outdoor cell is greater than the field intensity threshold of the coverage edge of the indoor distribution system, and judging whether the signal-to-noise ratio of only using outdoor signals is greater than the signal-to-noise ratio + Y of only using indoor distribution system signals, wherein Y is hysteresis, and the value range of Y is 1-4dB, so that ping-pong switching is avoided, and if yes, the outer area is disconnected from the signal source of the indoor distribution system; otherwise, the outer subarea is disconnected from the indoor distribution system signal source.
The indoor distribution system further includes: a frequency screening circuit 94, wherein the frequency screening circuit 94 is arranged on a connection line between the indoor distribution system signal source and the outer sub-partition; the frequency screening circuit 94 includes: the device comprises a frequency band branching unit, a controllable connector and a frequency band combiner; wherein,
the frequency band splitter is used for splitting a signal from an indoor distribution system signal source into two branches: an upper branch and a lower branch; the upper branch path is an indoor distribution system signal of a designated frequency band, and the lower branch path is a signal of other frequency bands;
the frequency band combiner is used for combining the signals on the upper shunt and the signals on the lower shunt and connecting the combined signals to the outer subarea;
the controllable connector is arranged on an upper branch path between the frequency band branching unit and the frequency band combiner and is used for screening indoor distribution system signals of the designated frequency band.
The indoor distribution system further comprises a measurement reporting terminal 95 for periodically measuring and automatically reporting indoor and outdoor signal measurement parameters to the monitoring server;
wherein the indoor and outdoor signal measurement parameters include: indoor pilot power, indoor distribution system coverage edge field strength threshold, signal to noise ratio using only indoor distribution system signals, signal to noise ratio using only outdoor signals, and outdoor strongest cell pilot power.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (19)
1. A method for implementing an indoor distribution system, the method comprising:
dividing a signal source coverage area of an indoor distribution system into an inner area and an outer area; the inner area is provided with signals by an indoor distribution system signal source, and the outer area is controllably connected with the indoor distribution system signal source;
and connecting or disconnecting the outer area with the signal source of the indoor distribution system according to the indoor and outdoor signal measurement parameters.
2. The method of claim 1, wherein the indoor and outdoor signal measurement parameters comprise: indoor pilot power, indoor distribution system coverage edge field strength threshold, signal to noise ratio using only indoor distribution system signals, signal to noise ratio using only outdoor signals, and outdoor strongest cell pilot power.
3. The method of claim 2, wherein connecting or disconnecting the outer zone from the indoor distribution system signal source according to the indoor and outdoor signal parameters comprises:
and judging whether the indoor pilot frequency power is greater than the field intensity threshold of the coverage edge of the indoor distribution system, judging whether the signal-to-noise ratio of the signal using the indoor distribution system is greater than the signal-to-noise ratio of the signal using only the outdoor signal plus the hysteresis quantity, and communicating the outer area with the signal source of the indoor distribution system if the judgment is yes.
4. The method of claim 2 or 3, wherein connecting or disconnecting the outer zone from the indoor distribution system signal source according to the indoor and outdoor signal parameters comprises:
and judging whether the pilot power of the strongest outdoor cell is greater than the field intensity threshold of the coverage edge of the indoor distribution system, judging whether the signal-to-noise ratio of the outdoor signal is greater than the signal-to-noise ratio plus the hysteresis of the signal of the indoor distribution system, and disconnecting the outer area from the signal source of the indoor distribution system if the judgment is positive.
5. The method of claim 1, wherein the outer zone is controllably connected to an indoor distributed system signal source, comprising:
controllably connecting the outer area with the inner area, so that the outer area is connected with an indoor distribution system signal source through the inner area; alternatively, the outer zone is directly controllably connected to the signal source of the indoor distribution system.
6. The method of claim 1, wherein the dividing the indoor distributed system signal source coverage area into an inner zone and an outer zone comprises:
dividing an area, obtained by measurement, of which the outdoor signal receiving intensity is 15-25 dB lower than a specified receiving intensity threshold into an inner area; the other regions except the inner region are divided into outer regions.
7. The method of claim 6, further comprising: dividing an outer area into outer area sub-partitions with the number equal to that of the outdoor main cells according to the number of the main cells to which outdoor signals received by the outer area belong; or,
according to the area size of the designated outer zone subarea, the outer zone is divided into a plurality of outer zone subareas with the same size as the designated outer zone subarea.
8. The method of claim 7, wherein the outer zone is controllably connected to an indoor distributed system signal source, comprising:
controllably connecting each outer subarea with the inner subarea, so that each outer subarea is connected with an indoor distribution system signal source through the inner subarea;
or, directly and controllably connecting each outer subarea with the signal source of the indoor distribution system;
or, the signal source of the indoor distribution system passes through the power divider or the coupler and then is respectively and controllably connected with each outer subarea.
9. The method of claim 1, wherein the controllable connection comprises: connected by a controllable two-phase switch or connected by a controllable attenuator.
10. An indoor distribution system, the system comprising: the system comprises an indoor distribution system signal source, a controllable connector and a monitoring server; wherein,
the indoor distribution system signal source is used for providing communication signals for the signal source coverage area of the indoor distribution system;
the controllable connector is used for controllably connecting the outer area with the signal source of the indoor distribution system;
the monitoring server is used for dividing an indoor distribution system signal source coverage area into an inner area and an outer area, wherein the inner area is provided with signals by the indoor distribution system signal source; and the outdoor area is connected or disconnected with the signal source of the indoor distribution system according to the indoor and outdoor signal measurement parameters.
11. The system of claim 10, wherein the indoor and outdoor signal parameters comprise: indoor pilot power, indoor distribution system coverage edge field strength threshold, signal to noise ratio using only indoor distribution system signals, signal to noise ratio using only outdoor signals, and outdoor strongest cell pilot power.
12. The system of claim 11, wherein the monitoring server is configured to connect or disconnect an external area to an indoor distribution system signal source according to indoor and outdoor signal parameters, comprising:
the monitoring server is used for judging whether the indoor pilot frequency power is larger than the field intensity threshold of the coverage edge of the indoor distribution system, judging whether the signal-to-noise ratio of the signal using the indoor distribution system is larger than the signal-to-noise ratio of the signal only using the outdoor signal plus the hysteresis quantity, and communicating the outer area with the signal source of the indoor distribution system when the judgment is yes.
13. The system of claim 11 or 12, wherein the monitoring server is configured to connect or disconnect an external area to an indoor distribution system signal source according to indoor and outdoor signal parameters, comprising:
the monitoring server is used for judging whether the pilot power of the strongest outdoor cell is larger than the field intensity threshold of the coverage edge of the indoor distribution system, judging whether the signal-to-noise ratio of only using outdoor signals is larger than the signal-to-noise ratio of only using indoor distribution system signals plus hysteresis, and disconnecting the outer area from the signal source of the indoor distribution system when the judgment is yes.
14. The system of claim 10, wherein the controllable connector is configured to controllably connect an external zone to an indoor distributed system signal source, comprising:
the controllable connector is used for controllably connecting the outer area and the inner area, so that the outer area is connected with an indoor distribution system signal source through the inner area; alternatively, the controllable connector is configured to controllably connect the outer zone directly to the signal source of the indoor distribution system.
15. The system of claim 10, wherein the monitoring server is configured to divide an indoor distributed system signal source coverage area into an inner area and an outer area, and comprises:
dividing an area, obtained by measurement, of which the outdoor signal receiving intensity is 15-25 dB lower than a specified receiving intensity threshold into an inner area; the other regions except the inner region are divided into outer regions.
16. The system of claim 15, wherein the monitoring server is further configured to divide the outer zone into outer zone sub-partitions with the number equal to the number of the outdoor main cells according to the number of the main cells to which the outdoor signals received by the outer zone belong, or,
according to the area size of the designated outer zone subarea, the outer zone is divided into a plurality of outer zone subareas with the same size as the designated outer zone subarea.
17. The system of claim 16, wherein the controllable connector is configured to controllably connect an external zone to an indoor distributed system signal source, comprising:
the controllable connector is used for respectively connecting each outer subarea with the inner subarea, so that each outer subarea is connected with the indoor distribution system signal source through the inner subarea;
or, the controllable connector is used for directly connecting each outer subarea with the signal source of the indoor distribution system;
or the controllable connector is used for connecting the indoor distribution system signal source after passing through the power divider or the coupler with each outer subarea.
18. The system of claim 10, wherein the controllable connector comprises: a controllable two-phase switch, or a controllable attenuator.
19. The system of claim 10, further comprising: and the measurement reporting terminal is used for periodically measuring and automatically reporting indoor and outdoor signal measurement parameters to the monitoring server.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310655609.8A CN104703194A (en) | 2013-12-05 | 2013-12-05 | Indoor distribution system and realizing method thereof |
| PCT/CN2014/080324 WO2015081687A1 (en) | 2013-12-05 | 2014-06-19 | Indoor distribution system, implementation method thereof and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310655609.8A CN104703194A (en) | 2013-12-05 | 2013-12-05 | Indoor distribution system and realizing method thereof |
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| CN104703194A true CN104703194A (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310655609.8A Withdrawn CN104703194A (en) | 2013-12-05 | 2013-12-05 | Indoor distribution system and realizing method thereof |
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| Country | Link |
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| CN (1) | CN104703194A (en) |
| WO (1) | WO2015081687A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017080234A1 (en) * | 2015-11-13 | 2017-05-18 | 中兴通讯股份有限公司 | Signal coverage method and system, offloading coverage terminal, and signal coverage terminal |
| CN109963289A (en) * | 2017-12-26 | 2019-07-02 | 中国移动通信集团公司 | A method and device for establishing an indoor distributed base station |
| CN111278020A (en) * | 2019-11-11 | 2020-06-12 | 广州知弘科技有限公司 | Indoor small base station arrangement method based on 5G communication technology |
| CN111770506A (en) * | 2020-07-08 | 2020-10-13 | 展讯通信（上海）有限公司 | Near-end and far-end control combiner unit, near-end and far-end subsystem and indoor subsystem |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119402898B (en) * | 2024-11-06 | 2025-08-29 | 中国移动香港有限公司 | Method and device for locating faults in multi-network combining equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150348A (en) * | 2006-03-28 | 2008-03-26 | 华为技术有限公司 | An indoor distribution system and its networking method |
| US20080165709A1 (en) * | 2007-01-05 | 2008-07-10 | Soliman Samir S | Method and apparatus for supporting communication in pico networks |
| CN101815307A (en) * | 2009-02-24 | 2010-08-25 | 中国移动通信集团山东有限公司 | Method for controlling host computer operation in indoor distribution system and device thereof |
| CN101990212A (en) * | 2009-08-04 | 2011-03-23 | 中兴通讯股份有限公司 | Method and system for networking indoor and outdoor distribution systems |
| CN102065432A (en) * | 2009-11-13 | 2011-05-18 | 中国移动通信集团黑龙江有限公司 | Transmission model-based network coverage correcting method and system |
| CN203327240U (en) * | 2013-03-29 | 2013-12-04 | 京信通信系统（中国）有限公司 | Indoor distribution system |
-
2013
- 2013-12-05 CN CN201310655609.8A patent/CN104703194A/en not_active Withdrawn
-
2014
- 2014-06-19 WO PCT/CN2014/080324 patent/WO2015081687A1/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150348A (en) * | 2006-03-28 | 2008-03-26 | 华为技术有限公司 | An indoor distribution system and its networking method |
| US20080165709A1 (en) * | 2007-01-05 | 2008-07-10 | Soliman Samir S | Method and apparatus for supporting communication in pico networks |
| CN101815307A (en) * | 2009-02-24 | 2010-08-25 | 中国移动通信集团山东有限公司 | Method for controlling host computer operation in indoor distribution system and device thereof |
| CN101990212A (en) * | 2009-08-04 | 2011-03-23 | 中兴通讯股份有限公司 | Method and system for networking indoor and outdoor distribution systems |
| CN102065432A (en) * | 2009-11-13 | 2011-05-18 | 中国移动通信集团黑龙江有限公司 | Transmission model-based network coverage correcting method and system |
| CN203327240U (en) * | 2013-03-29 | 2013-12-04 | 京信通信系统（中国）有限公司 | Indoor distribution system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017080234A1 (en) * | 2015-11-13 | 2017-05-18 | 中兴通讯股份有限公司 | Signal coverage method and system, offloading coverage terminal, and signal coverage terminal |
| CN106714188A (en) * | 2015-11-13 | 2017-05-24 | 中兴通讯股份有限公司 | Signal coverage method and system, shunt coverage terminal and signal coverage terminal |
| CN109963289A (en) * | 2017-12-26 | 2019-07-02 | 中国移动通信集团公司 | A method and device for establishing an indoor distributed base station |
| CN111278020A (en) * | 2019-11-11 | 2020-06-12 | 广州知弘科技有限公司 | Indoor small base station arrangement method based on 5G communication technology |
| CN111278020B (en) * | 2019-11-11 | 2020-09-22 | 上海星地通讯工程研究所 | Indoor small base station arrangement method based on 5G communication technology |
| CN111770506A (en) * | 2020-07-08 | 2020-10-13 | 展讯通信（上海）有限公司 | Near-end and far-end control combiner unit, near-end and far-end subsystem and indoor subsystem |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015081687A1 (en) | 2015-06-11 |
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