CN102232310A - System, device and method for monitoring distributed antenna system - Google Patents
System, device and method for monitoring distributed antenna system Download PDFInfo
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- CN102232310A CN102232310A CN2011800008474A CN201180000847A CN102232310A CN 102232310 A CN102232310 A CN 102232310A CN 2011800008474 A CN2011800008474 A CN 2011800008474A CN 201180000847 A CN201180000847 A CN 201180000847A CN 102232310 A CN102232310 A CN 102232310A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
- H04B17/18—Monitoring during normal operation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
Abstract
An embodiment of the present invention relates to a system, a device and a method for monitoring a distributed antenna system. The system comprises: an inquiry device which is arranged at and electrically connected with an information source end of the distributed antenna system; and a response device which is arranged at an antenna end of the distributed antenna system and coupled with each of the antennas, wherein the response device comprises identification information corresponding to antenna branches which are associated with the response device, the inquiry device is used for sending a monitoring signal to the response device through the distributed antenna system, the response device is activated by receiving the monitoring signal; then a response signal is sent back to the inquiry device through the distributed antenna system, wherein the response signal carries the identification information and status information of the monitoring signal received by the response device; and the inquiry device receives the response signal, then determines states of the antenna branches corresponding to the identification information according to the identification information and the status information of the monitoring signal received by the response device. By adopting the embodiment of the present invention, the problem that working conditions of the plurality of antenna branches in the distributed antenna system are difficult to monitor remotely can be solved, thus monitoring for the plurality of antenna branches can be realized quickly and efficiently with a low cost, thereby enabling the user to monitor the working condition of each the antenna branch in the distributed antenna system remotely.
Description
Technical field
The embodiment of the invention relates to the communications field, more particularly, relates to monitoring system, equipment and the method for distributing antenna system.
Background technology
Development along with social civilization, people are more and more higher to the requirement of information communication, guaranteeing how to effectively reduce the electromagnetic radiation pollution that antenna brings under the prerequisite that mobile phone signal covers, become a problem of present communications equipment manufacturer and operator's pay attention to day by day.
Reduce electromagnetic radiation, will reduce the covering intensity of signal of communication, exchange to sacrifice communication quality and communication condition.Clearly, in public, communication environment there is very high requirement, is not suitable for sacrificing communication quality; But, in individual's property space, when the owner does not need communication condition, just can close the antenna covering system to exchange the environment of low electromagnetic for fully.
Based on these ideas, propose when realizing indoor covering, to use a kind of controlled indoor distributed antenna device.Like this, the user can be as required have signal of communication to cover and two kinds of environment of radiationless pollution in switch, can not exert an influence to other user's communications environment, in indoor, tunnel and subway, can communicate by letter guaranteeing.
For guaranteeing communication quality, need regularly distributing antenna system to be detected, operator adopts the method for standing wave detection and manual dialing test to the sensing chamber of indoor covering system at present.Adopt the standing wave detection mode, this scheme is respond well in the single channel antenna system detects, but is not suitable for having the distributing antenna system of numerous branches.Adopt the mode of manual dialing test, the running cost height, the testing frequency is low and the testing effect is difficult to guarantee.
Summary of the invention
Embodiment of the invention technical problem to be solved on the one hand is the deficiency that overcomes the detection system of distributing antenna system in the prior art, detects the operating state of the antenna branch of distributing antenna system efficiently, fast, at low cost.
According to the embodiment of the invention, a kind of monitoring system of distributing antenna system has been proposed, described monitoring system comprises:
Be arranged on the information source end of described distributing antenna system and the equipment of inquiring that is electrically connected with described information source end; With
Be arranged on the antenna end of described distributing antenna system and the response apparatus that couples with each antenna, described response apparatus has the antenna branch corresponding identifying information associated with this response apparatus,
The wherein said equipment of inquiring is used for by described distributing antenna system to described response apparatus transmitting supervisory signal, described response apparatus receives described monitor signal and is activated, and return response signal to the described equipment of inquiring by described distributing antenna system, carry the state information of the described monitor signal that described identifying information and described response apparatus receive in the described response signal, the described equipment of inquiring receives described response signal, and the state information of the described monitor signal that receives according to described identifying information and described response apparatus is determined the state of the antenna branch corresponding with described identifying information.
According to the embodiment of the invention, a kind of equipment of inquiring that is used for the distributing antenna system monitoring has been proposed,
Describedly inquire the information source end that equipment is arranged on described distributing antenna system,
The described equipment of inquiring is used for to antenna end that is arranged on described distributing antenna system and the response apparatus transmitting supervisory signal that couples with antenna end, described response apparatus is received described monitor signal and is activated, and return response signal to the described equipment of inquiring, carry the state information of the described monitor signal that identifying information corresponding with the associated antenna branch of described response apparatus and described response apparatus receive in the described response signal, the described equipment of inquiring receives described response signal, and the state information of the described monitor signal that receives according to described identifying information and described response apparatus is determined the state of the antenna branch corresponding with described identifying information.
According to the embodiment of the invention, a kind of response apparatus that is used for the distributing antenna system monitoring has been proposed,
Described response apparatus is couple to the antenna end of described distributing antenna system, and receive the monitor signal inquire the equipment emission and be activated, and return response signal to the described equipment of inquiring, described response signal is carried and the identifying information of the associated antenna branch of described response apparatus and the state information of the described monitor signal that described response apparatus receives, so that the described equipment of inquiring receives described response signal, and determine the state of the antenna branch corresponding according to described identifying information and the described described monitor signal state information that receives with described identifying information.
According to the embodiment of the invention, a kind of monitoring method of distributing antenna system has been proposed, described method comprises:
To response apparatus transmitting supervisory signal, wherein said response apparatus is couple to the antenna end of described distributing antenna system;
Receive the response signal that described response apparatus returns, wherein said response signal is carried the state information of the identifying information and the described monitor signal that described response apparatus receives of the associated antenna branch of described response apparatus,
The state information of the described monitor signal that receives according to described identifying information and described response apparatus is determined the state of the antenna branch corresponding with described identifying information.
According to the embodiment of the invention, a kind of monitoring method of distributing antenna system has been proposed, described method comprises:
Response apparatus receives from the monitor signal of inquiring equipment;
Response apparatus returns response signal to the described equipment of inquiring, wherein said response signal is carried the state information of the identifying information and the described monitor signal that described response apparatus receives of antenna branch, so that the state information of described identifying information and the described described monitor signal that receives is used for determining the state of the antenna branch corresponding with described identifying information.
Utilize the embodiment of the invention, can solve the remote detection difficult problem of a plurality of antenna branch operating states in the distributing antenna system, can be rapidly and efficiently and realize the detection of a plurality of antenna branch at low cost so that the user can the remote monitoring antenna system in the state of each antenna branch.And the monitoring system of the embodiment of the invention can be used for newly-built distributing antenna system (Distributed Antenna System, be called for short " DAS ") system, also can be used to transform existing indoor covering DAS system.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the schematic configuration diagram of distributing antenna system that comprises the monitoring system of the embodiment of the invention;
Fig. 2 is the flow chart of the monitoring method of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Usually, distributing antenna system except that signal source, other all be passive device, as power splitter, mixer, coupler, radio frequency cable, domestic aerial etc.
Fig. 1 is a schematic configuration diagram of utilizing the distributing antenna system that the embodiment of the invention monitors.As shown in Figure 1, distributing antenna system 100 comprises information source 110; With the antenna 120 on each spaced antenna branch road.Should be appreciated that Fig. 1 only states schematic diagram for the example of distributing antenna system, comprise two strip antenna branch roads, the antenna branch quantity in the actual distributing antenna system can be selected as required.Certainly, distributing antenna system also comprises other necessary function elements, as above-mentioned power splitter, mixer, coupler, radio frequency cable etc.According to the embodiment of the invention, distributing antenna system 100 also comprises the equipment of inquiring 130 of the information source end that is arranged on information source 110 places, and the response apparatus 140 that is arranged on the antenna 120 residing antenna end of spaced antenna branch road.The equipment of inquiring is electrically connected with information source 110, and is utilized as the power supply power supply of information source 110 power supplies, can for example launch the rf monitoring signal via the feeder line launch monitor signal of distributing antenna system, is used to detect the operating state of antenna 120.Described monitor signal can transmit via distributing antenna system, and arrives antenna 120.Response apparatus 140 couples the monitor signal of inquiring the equipment emission in order to reception with antenna 120, and described lotus root connects and is meant a kind of connected mode that can carry out signal transmission and/or energy delivery between described response apparatus 140 and antenna 120.As other passive devices of distributing antenna system, response apparatus 140 is preferably passive device, utilizes the energy running of the monitor signal that receives.Response apparatus 140 can be installed on the feeder line of each antenna 120 inside, perhaps also can be installed on the external interface of each antenna 120, is provided with as the case may be.Response apparatus 140 has the antenna branch corresponding identifying information associated with this response apparatus 140.According to the embodiment of the invention, response apparatus 140 receives monitor signal and is activated, and return response signal to inquiring equipment 130, carry the state information of the monitor signal that identifying information and described response apparatus 140 receive in the response signal, inquire equipment 130 and receive response signals, and determine the state of the antenna 120 place antenna branch corresponding according to identifying information and the monitor signal state information that receives with identifying information.
According to the embodiment of the invention, inquire equipment 130 to whole response apparatus 140 launch monitor signals, and receive the response signal that each response apparatus 140 returns, and the state information of the monitor signal that receives according to the identifying information that comprises in the response signal and this response apparatus, the signal strength data that for example receives can be judged the operating state of corresponding antenna 120 place antenna branch.For example, the strength retrogression of the monitor signal that receives at response apparatus 140 is during less than particular value, can think that the antenna branch at antenna 120 places that couple with response apparatus 140 is normal and provide the normal state information of antenna branch, on the contrary can think antenna 120 places that couple with response apparatus 140 the antenna branch operation irregularity and provide the unusual state information of antenna branch.
According to the embodiment of the invention, inquire equipment 130 and can comprise coded message to the monitor signal that response apparatus 140 sends, response apparatus 140 receives monitor signal and is activated, and when definite coded message conforms to the identifying information of this response apparatus 140, return response signal to inquiring equipment 130.According to this embodiment, can be by in monitor signal, carrying the identifying information corresponding codes information with concrete response apparatus 140, whether the antenna branch that detects antenna 120 places that couple with response apparatus 140 is normal, promptly can realize detecting targetedly.
According to the embodiment of the invention, simultaneously return response signal and cause information collision or congestion information for fear of a plurality of response apparatus 140 to inquiring equipment 130, response apparatus 140 is after receiving the monitor signal that the equipment of inquiring 130 sends, carry out random delay respectively, and then return response signal to inquiring equipment 130.
The another kind of embodiment according to the present invention, inquire equipment 130 and can send first monitor signal to response apparatus 140 earlier, response apparatus 140 receives first monitor signal and is activated, and be in standby condition, inquire equipment 130 then and send second monitor signal to response apparatus 140, this second monitor signal carries above-mentioned coded message, and response apparatus 140 receives second monitor signal, and when definite coded message conforms to identifying information, return response signal to inquiring equipment 130.Utilize this embodiment, can avoid not only power being provided but also instructing it to return the problem of the response that can't receive response apparatus 140 that response signal causes to response apparatus 140 by a monitor signal.Utilize first monitor signal to activate response apparatus 140, and utilize second monitor signal to instruct corresponding response apparatus 140 to return response signal, can more effectively guarantee to obtain correct response signal.
In embodiments of the present invention, response apparatus 140 for example can be radio frequency identification (RadioFrequency Identification is called for short " RFID ") chip.
Fig. 2 is the flow chart according to the monitoring method of the distributing antenna system of the embodiment of the invention.As shown in Figure 2, the monitoring method 200 of distributing antenna system comprises:
210: inquire equipment 130 to response apparatus 140 transmitting supervisory signals, wherein said response apparatus 140 is couple to the antenna end of described distributing antenna system;
220: inquire equipment 130 and receive the response signal that described response apparatus 140 returns, wherein said response signal is carried the identifying information of the antenna branch related with described response apparatus 140 and the state information of the described monitor signal that described response apparatus receives,
230: inquire equipment 130 is determined the antenna branch corresponding with described identifying information according to described identifying information and the described described monitor signal state information that receives state.
Can be used for realizing the monitoring method 200 of the embodiment of the invention according to the monitoring system 100 of the aforementioned embodiment of the invention.Therefore the technical characterictic in the monitoring system 100 also can be separately or is applicable in combination and realizes monitoring method 200.
Method according to the embodiment of the invention, inquire equipment 130 and can comprise coded message to the monitor signal that response apparatus 140 sends, response apparatus 140 is after receiving described monitor signal, to compare in the identifying information of itself, when definite described coded message conforms to described identifying information, just return response signal to the described equipment 130 of inquiring.
Method according to the embodiment of the invention, inquire equipment 130 to response apparatus 140 transmitting supervisory signals, can comprise: inquire equipment 130 and send first monitor signal to described response apparatus 140, described response apparatus 140 receives described first monitor signal and is activated, and be in standby condition, send second monitor signal to described response apparatus 140 then, this second monitor signal carries described coded message, described response apparatus 140 receives described second monitor signal, and when definite described coded message conforms to described identifying information, return described response signal to the described equipment 130 of inquiring.
As previously mentioned, the state information of its described monitor signal that receives that comprises in the response signal that response apparatus 140 returns comprises signal strength information.Inquire equipment 130 and judge according to this signal strength information whether response apparatus 140 antenna branch of living in are normal.For example, during less than particular value, think that response apparatus 140 antenna branch of living in are working properly, otherwise then think response apparatus 140 antenna branch operation irregularities of living in described signal intensity attenuation.
Utilize the embodiment of the invention, can solve the remote detection difficult problem of a plurality of antenna branch operating states in the distributing antenna system, can be rapidly and efficiently and realize the detection of a plurality of antenna branch at low cost so that the user can the remote monitoring antenna system in the state of each antenna branch.And the monitoring system of the embodiment of the invention can be used for newly-built digital antenna system (Digital Antenna System, be called for short " DAS ") system, also can be used to transform existing indoor covering DAS system.
Those of ordinary skills can recognize, the unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, the composition and the step of each example described prevailingly according to function in the above description.These functions still are that software mode is carried out with hardware actually, depend on the application-specific and the design constraint of technical scheme.The professional and technical personnel can use distinct methods to realize described function to each specific should being used for, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
Although illustrated and described some embodiments of the present invention, it will be understood by those skilled in the art that without departing from the principles and spirit of the present invention can carry out various modifications to these embodiment, such modification should fall within the scope of the present invention.
Claims (28)
1. the monitoring system of a distributing antenna system is characterized in that, described monitoring system comprises:
Be arranged on the information source end of described distributing antenna system and the equipment of inquiring that is electrically connected with described information source end; With
Be arranged on the antenna end of described distributing antenna system and the response apparatus that couples with each antenna, described response apparatus has the antenna branch corresponding identifying information associated with this response apparatus,
The wherein said equipment of inquiring is used for by described distributing antenna system to described response apparatus transmitting supervisory signal, described response apparatus receives described monitor signal and is activated, and return response signal to the described equipment of inquiring by described distributing antenna system, carry the state information of the described monitor signal that described identifying information and described response apparatus receive in the described response signal, the described equipment of inquiring receives described response signal, and the state information of the described monitor signal that receives according to described identifying information and described response apparatus is determined the state of the antenna branch corresponding with described identifying information.
2. the system as claimed in claim 1 is characterized in that,
The described equipment of inquiring comprises coded message to the monitor signal that described response apparatus sends, described response apparatus receives described monitor signal and is activated, and when definite described coded message conforms to described identifying information, return described response signal to the described equipment of inquiring.
3. the system as claimed in claim 1 is characterized in that,
Described response apparatus receives described monitor signal and after being activated, carries out random delay, and is returning described response signal through behind the described random delay to the described equipment of inquiring.
4. system as claimed in claim 2 is characterized in that,
The described equipment of inquiring sends first monitor signal to described response apparatus, described response apparatus receives described first monitor signal and is activated, and be in standby condition, the described equipment of inquiring sends second monitor signal to described response apparatus, this second monitor signal carries described coded message, described response apparatus receives described second monitor signal, and when definite described coded message conforms to described identifying information, returns described response signal to the described equipment of inquiring.
5. as each described system of claim 1 to 4, it is characterized in that,
Described response apparatus is an inactive component.
6. as each described system of claim 1 to 4, it is characterized in that,
Described response apparatus is installed on the feeder line of described each antenna inside or is installed on the external interface of antenna of each antenna branch.
7. as each described system of claim 1 to 4, it is characterized in that,
The state information of the described monitor signal that described response apparatus receives comprises signal strength information.
8. system as claimed in claim 7 is characterized in that,
Described when inquiring equipment and determining described signal intensity attenuation amplitude less than particular value, provide the normal state information of the antenna branch corresponding, otherwise provide the antenna branch unusual state information corresponding with described identifying information with described identifying information.
9. the equipment of inquiring that is used for the distributing antenna system monitoring is characterized in that,
Describedly inquire the information source end that equipment is arranged on described distributing antenna system,
The described equipment of inquiring is used for to antenna end that is arranged on described distributing antenna system and the response apparatus transmitting supervisory signal that couples with antenna end, described response apparatus is received described monitor signal and is activated, and return response signal to the described equipment of inquiring, carry the state information of the described monitor signal that identifying information corresponding with the associated antenna branch of described response apparatus and described response apparatus receive in the described response signal, the described equipment of inquiring receives described response signal, and the state information of the described monitor signal that receives according to described identifying information and described response apparatus is determined the state of the antenna branch corresponding with described identifying information.
10. the equipment of inquiring as claimed in claim 9 is characterized in that,
The described equipment of inquiring comprises coded message to the monitor signal that described response apparatus sends, described response apparatus receives described monitor signal and is activated, and when definite described coded message conforms to described identifying information, return response signal to the described equipment of inquiring.
11. the equipment of inquiring as claimed in claim 10 is characterized in that,
The described equipment of inquiring sends first monitor signal to described response apparatus, described response apparatus receives described first monitor signal and is activated, and be in standby condition, the described equipment of inquiring sends second monitor signal to described response apparatus, this second monitor signal carries described coded message, described response apparatus receives described second monitor signal, and when definite described coded message conforms to described identifying information, returns response signal to the described equipment of inquiring.
12. the equipment of inquiring as claimed in claim 9 is characterized in that,
The state information of the described described monitor signal that receives comprises signal strength information.
13. the equipment of inquiring as claimed in claim 12 is characterized in that,
The described equipment of inquiring, provides the normal state information of the antenna branch corresponding with described identifying information, otherwise provides the antenna branch unusual state information corresponding with described identifying information during less than particular value in definite described signal intensity attenuation amplitude.
14. a response apparatus that is used for the distributing antenna system monitoring is characterized in that,
Described response apparatus is couple to the antenna end of described distributing antenna system, and receive the monitor signal inquire the equipment emission and be activated, and return response signal to the described equipment of inquiring, described response signal is carried and the identifying information of the associated antenna branch of described response apparatus and the state information of the described monitor signal that described response apparatus receives, so that the described equipment of inquiring receives described response signal, and determine the state of the antenna branch corresponding according to the state information of described identifying information and the described described monitor signal that receives with described identifying information.
15. response apparatus as claimed in claim 14 is characterized in that,
What described response apparatus received comprises coded message from the described monitor signal of inquiring equipment, described response apparatus receives described monitor signal and is activated, and when definite described coded message conforms to described identifying information, return described response signal to the described equipment of inquiring.
16. response apparatus as claimed in claim 15 is characterized in that,
Described response apparatus receives from described and inquires first monitor signal of equipment and be activated, and be in standby condition, described response apparatus receives from described second monitor signal of inquiring equipment, this second monitor signal carries described coded message, and when definite described coded message conforms to described identifying information, return described response signal to the described equipment of inquiring.
17. response apparatus as claimed in claim 14 is characterized in that,
The state information of the described described monitor signal that receives comprises signal strength information.
18. as each described response apparatus of claim 14 to 17, it is characterized in that,
Described response apparatus is an inactive component.
19. as each described response apparatus of claim 14 to 17, it is characterized in that,
Described response apparatus is installed on the feeder line of antenna inside of described antenna branch or is installed on the external interface of antenna.
20. the monitoring method of a distributing antenna system is characterized in that, described method comprises:
To response apparatus transmitting supervisory signal, wherein said response apparatus is couple to the antenna end of described distributing antenna system;
Receive the response signal that described response apparatus returns, wherein said response signal is carried the state information of the identifying information and the monitor signal that described response apparatus receives of the associated antenna branch of described response apparatus,
The state information of the monitor signal that receives according to described identifying information and described response apparatus is determined the state of the antenna corresponding with described identifying information.
21. method as claimed in claim 20 is characterized in that,
It is described that wherein said detection signal comprises specific coded message to response apparatus transmitting supervisory signal,
When the response signal that the described response apparatus of described reception returns, wherein said response apparatus determine that described coded message conforms to described identifying information, return described response signal to the described equipment of inquiring.
22. method as claimed in claim 21 is characterized in that,
Described to response apparatus transmitting supervisory signal, comprising:
Send first monitor signal to described response apparatus, described response apparatus receives described first monitor signal and is activated, and is in standby condition,
Send second monitor signal to described response apparatus, this second monitor signal carries described specific coded message, described response apparatus receives described second monitor signal, and when definite described coded message conforms to described identifying information, returns described response signal to the described equipment of inquiring.
23. as each described method of claim 20 to 22, it is characterized in that,
The state information of the monitor signal that described response apparatus receives comprises signal strength information.
24. method as claimed in claim 23 is characterized in that,
During less than particular value, provide the normal state information of the antenna branch corresponding in definite described signal intensity attenuation amplitude with described identifying information.
25. the monitoring method of a distributing antenna system is characterized in that, described method comprises:
Response apparatus receives from the monitor signal of inquiring equipment;
Response apparatus returns response signal to the described equipment of inquiring, wherein said response signal is carried the state information of the identifying information and the described monitor signal that described response apparatus receives of antenna branch, so that the state information of described identifying information and the described described monitor signal that receives is used for determining the state of the antenna branch corresponding with described identifying information.
26. method as claimed in claim 25 is characterized in that,
Described response apparatus receives from the monitor signal of inquiring equipment, and wherein said monitor signal comprises coded message,
Described response apparatus returns response signal to the described equipment of inquiring, and wherein when definite described coded message conforms to described identifying information, returns described response signal to the described equipment of inquiring.
27. method as claimed in claim 26 is characterized in that,
Described response apparatus receives from the monitor signal of inquiring equipment, comprising:
Described response apparatus receives from described first monitor signal of inquiring equipment, and utilize described first monitor signal to activate, and be in standby condition,
Reception is from described second monitor signal of inquiring equipment, and this second monitor signal carries described coded message, when definite described coded message conforms to described identifying information, returns described response signal to the described equipment of inquiring.
28. as each described method of claim 25 to 27, it is characterized in that,
The state information of the described described monitor signal that receives comprises signal strength information.
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| PCT/CN2011/076468 WO2012083668A1 (en) | 2011-06-28 | 2011-06-28 | Monitoring system, device and method for distributed antenna system |
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| CN102232310B CN102232310B (en) | 2014-12-03 |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2012083668A1 (en) | 2012-06-28 |
| CN102232310B (en) | 2014-12-03 |
| WO2012149863A1 (en) | 2012-11-08 |
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