CN104427601B - A kind of channel power method and apparatus adjusted in the subsystem of binary channels room - Google Patents
A kind of channel power method and apparatus adjusted in the subsystem of binary channels room Download PDFInfo
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- CN104427601B CN104427601B CN201310382802.9A CN201310382802A CN104427601B CN 104427601 B CN104427601 B CN 104427601B CN 201310382802 A CN201310382802 A CN 201310382802A CN 104427601 B CN104427601 B CN 104427601B
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- power
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
Abstract
The invention provides a kind of channel power method and apparatus adjusted in the subsystem of binary channels room.Method therein includes：The channel quality of detection user in real time；When the channel quality of the user is less than default first threshold value and the user is in stream transmission pattern, the upward signal power that upper two channel receptions of RRU arrive is detected；When the difference between the upward signal power of upper two passages of the RRU is more than default second threshold value, the down transmitting power of the low passage of upward signal power in described two passages is improved.The handling capacity of user according to practical situations, the down transmitting power of the low passage of adjust automatically upward signal power, can be effectively lifted using the present invention.
Description
Technical field
The application is related to mobile communication technology field, more particularly to a kind of channel power adjusted in the subsystem of binary channels room
Method and apparatus.
Background technology
In order to improve the mobile communication environment of indoor customer group in building, a kind of indoor distribution is proposed in the prior art
System, referred to as room subsystem.In the room subsystem, by using the domestic aerial compartment system that pre-sets by mobile base station
Signal be uniformly distributed every nook and cranny indoors, so as to ensure that room area possesses the covering of preferable signal, improve in building
Speech quality, improve call completion of mobile telephone rate, expand network capacity, on the whole improve mobile network service level.
Room subsystem of the prior art can typically use single pass mode or twin-channel mode.Fig. 1 is existing
The structural representation of binary channels room subsystem in technology.As shown in figure 1, binary channels room of the prior art subsystem typically by
Indoor baseband processing unit（Building Baseband Unit, BBU）, Remote Radio Unit（Radio Remote Unit,
RRU）, feeder line, combiner, coupler, the part composition such as power splitter and ceiling mount antenna.Wherein, base station is connected with transmitting antenna
The physical entity to get up can be described as passage.As shown in figure 1, a passage can generally include feeder line, combiner, power splitter, coupling
The parts such as clutch.In the binary channels room subsystem shown in Fig. 1, because each antenna point is connected to two passages, 2 are can be achieved
Hair 2 is received, so that above-mentioned binary channels room subsystem can support multiple-input and multiple-output（MIMO）Technology, effectively lifting are used
Family handling capacity.
But carrying out Long Term Evolution using above-mentioned binary channels room subsystem（LTE）During the indoor coverage of signal of system,
Particularly in the newly-built scene transformed all the way all the way, the length of cable that is undergone by the signal transmitted in two paths,
There is larger difference in passive device quantity and degree of aging, therefore easily occur channel power imbalance at antenna opening（I.e. two
The transmission power of individual passage is different）The problem of, as shown in Fig. 2 so as to cause unfavorable movie star to the receptivity of terminal, cause to use
The decline of family handling capacity.
In order to solve this problem, current solution can only be carried out when being carried out an acceptance inspection to room subsystem
Unbalanced power detects, to determine whether the unbalanced problem of channel power.But after completion is checked and accepted, but lack it
His effective monitoring method, can only be by manually carrying out regular sample testing, therefore operating efficiency is low, it is necessary to expend substantial amounts of
Manpower and materials.Moreover, when detecting in the subsystem of binary channels room the unbalanced problem of emergent power, traditional Adjusted Option is
An attenuator is set up on the higher passage of antenna opening power, by being adjusted attenuator with the work(of two passages
Rate is identical.However, in actual application environment, by the test of correlation it can be found that in the range of different, reduce higher
The power of passage will cause overall signal quality to be deteriorated all the way, can not lift the handling capacity of user.
The content of the invention
In view of this, the invention provides a kind of channel power method and apparatus adjusted in the subsystem of binary channels room, from
And can be according to practical situations, the down transmitting power of the low passage of adjust automatically upward signal power, effectively lifted
The handling capacity of user.
What technical scheme was specifically realized in：
A kind of method for adjusting the channel power in the subsystem of binary channels room, this method include：
The channel quality of detection user in real time；
When the channel quality of the user is less than default first threshold value and the user is in stream transmission pattern,
The upward signal power that detection upper two channel receptions of RRU arrive；
When the difference between the upward signal power of upper two passages of the RRU is more than default second threshold value, carry
The down transmitting power of the low passage of upward signal power in high described two passages.
Preferably, the channel quality of the detection user in real time includes：
The Reference Signal Received Power RSRP of reporting of user is detected.
Include preferably, the RSRP to reporting of user carries out detection：
Calculate within the period of preset length the RSRP of reporting of user average value, using the average value of the RSRP as
Testing result.
Preferably, the span of first threshold value is：- 80~-100dBm.
Preferably, the span of second threshold value is：5~8dB.
Preferably, the low passage of the upward signal power improved in described two passages down transmitting power it
Before, this method still further comprises：
Calculate the difference between the upward signal power that two channel receptions arrive on the RRU within the period of preset length
The average value of value, using the average value of the difference as the difference between the upward signal power of described two passages.
Preferably, the length of the period of the preset length is：15 seconds, 30 seconds or 60 seconds.
Preferably, the down transmitting power bag of the low passage of the upward signal power that improves in described two passages
Include：
By the down transmitting power lifting N dB of the low passage of the upward signal power in two passages；
Wherein, n times of difference of the value of the N between the upward signal power of described two passages.
Preferably, the span of the n is：0.8~1.2.
Present invention also offers a kind of device for adjusting the channel power in the subsystem of binary channels room, this method includes：Inspection
Survey module and adjusting module；
The detection module, for detecting the channel quality of user in real time；When the channel quality of the user is less than default
The first threshold value and user when being in stream transmission pattern, the upward signal work(that detection upper two channel receptions of RRU arrive
Rate；When the difference between the upward signal power of upper two passages of the RRU is more than default second threshold value, to the tune
Mould preparation block sends adjust instruction；
The adjusting module, the passage low for improving the upward signal power in described two passages according to adjust instruction
Down transmitting power.
As seen from the above technical solution, due to the channel quality of user can be detected in real time in the present invention, and work as user's
When channel quality be in stream transmission pattern less than default first threshold value and the user, detect upper two passages of RRU and connect
The upward signal power received, then preset again when the difference between the upward signal power of upper two passages of the RRU is more than
The second threshold value when, improve the down transmitting power of the low passage of upward signal power in described two passages, so as to
With according to practical situations, the down transmitting power of the low passage of adjust automatically upward signal power, thus lifting entirety
Signal quality, effectively lifts the handling capacity of user, but also can significantly reduce huge work caused by artificial selective examination
Measure and cost.
Brief description of the drawings
Fig. 1 is the structural representation of binary channels room of the prior art subsystem.
Fig. 2 is the unbalanced schematic diagram of channel power in the subsystem of binary channels room of the prior art.
Fig. 3 is the schematic flow sheet of the channel power method in the adjustment binary channels room subsystem in the embodiment of the present invention.
Fig. 4 is the structural representation of the device of the channel power in the adjustment binary channels room subsystem in the embodiment of the present invention
Figure.
Embodiment
For technical scheme and advantage is more clearly understood, below in conjunction with drawings and the specific embodiments, to this
Invention is described in further detail.
Fig. 3 is the flow chart of the channel power method in the adjustment binary channels room subsystem in the embodiment of the present invention.
As shown in figure 3, the channel power method in adjustment binary channels room subsystem in the embodiment of the present invention include it is as follows
The step：
Step 301, the channel quality of user is detected in real time.
In this step, it is necessary to be detected in real time to the channel quality of user.
Preferably, in a particular embodiment of the present invention, the channel quality of the detection user in real time can be：
To the Reference Signal Received Power of reporting of user（Reference Signal Receiving Power, RSRP）Enter
Row detection.
Because RSRP is LTE downlink reference signal receiving powers, it is mainly used in gauge signal intensity, user can be reflected
Channel quality.Therefore, by being detected to the RSRP of reporting of user, you can detect the channel quality of user.
Further, in order to reduce influence of the subscriber signal fluctuation to the channel quality of user, at one of the present invention
In preferred embodiment, the RSRP to reporting of user, which carries out detection, to be：
Calculate within the period of preset length the RSRP of reporting of user average value, using the average value of the RSRP as
Testing result.
Preferably, in a particular embodiment of the present invention, the length of the period can be pre- according to practical situations
First it is set or adjusted.For example, the length of the period of the preset length can be：15 seconds, 30 seconds or 60 seconds etc..
Step 302, when the channel quality of the user is in double fluid and passed less than default first threshold value and the user
During defeated pattern, the upward signal power that upper two channel receptions of RRU arrive is detected.
After having carried out real-time detection to the channel quality of user in step 301, you can judge to use according to testing result
The quality of the channel quality at family.Therefore, in this step, it can first judge the channel quality of the user whether less than default the
One threshold value DRSRP.If the channel quality of the user is less than default first threshold value, then it represents that the channel matter of the user
Measure poor.
In a particular embodiment of the present invention, the first threshold value DRSRPValue can be pre- according to practical situations
First it is set or adjusted.It can be seen from experiment and practical experience, -75dBm user, its transmission power are more than for RSRP
Appropriate reduction can't influence handling capacity to user.Therefore, in the preferred embodiment of the present invention, described first
Limit value DRSRPSpan can be：- 80~-100dBm；That is, the first threshold value DRSRPValue can be-
Any one value in 80~-100dBm.
In addition, in this step, while the channel quality of user is judged, it is also necessary to judge user whether in double fluid
Transmission mode（I.e. user uses a kind of mode of operation of the different data flow of dual-channel transmission）.If user is not in double fluid
Transmission mode（For example, when user is in single-stream transmission pattern）, then without the follow-up operation of progress.
From the foregoing, it will be observed that in this step, only when the channel quality of the user is less than default first threshold value and institute
When stating user and being in stream transmission pattern, the upward signal power that upper two channel receptions of RRU arrive just is detected, after carrying out
Continuous operation.
Step 303, when the difference between the upward signal power of upper two passages of the RRU is more than default second thresholding
During value, the down transmitting power of the low passage of upward signal power in described two passages is improved.
In this step, it is necessary to first judge the difference between the upward signal power that two channel receptions arrive on the RRU |
Pch1-Pch2| whether more than default second threshold value Duplink, only when the upward signal that upper two channel receptions of the RRU arrive
Difference between power is more than default DuplinkWhen, just improve the low passage of upward signal power in described two passages
Down transmitting power.Wherein, the Pch1For the upward signal power of first passage, the Pch2For the up of first passage
Signal power.
In a particular embodiment of the present invention, the second threshold value DuplinkValue can be according to practical situations
It is configured or adjusts in advance.For example, in the preferred embodiment of the present invention, the second threshold value DuplinkValue
Scope can be：5~8dB；That is, the second threshold value DuplinkValue can be any one in 5~8dB
Value.
Further, in order to reduce influence of the movement of user to the signal fluctuation of user, the present invention one compared with
In good embodiment, before this step, it can further include：
Calculate the difference between the upward signal power that two channel receptions arrive on the RRU within the period of preset length
The average value of value, using the average value of the difference as the difference between the upward signal power of described two passages.
Preferably, in a particular embodiment of the present invention, the length of the period can be pre- according to practical situations
First it is set or adjusted.For example, the length of the period of the preset length can be：15 seconds, 30 seconds or 60 seconds etc..
In addition, in the inventive solutions, the upward signal in two passages can be improved using a variety of methods
The down transmitting power of the low passage of power.For example, in the preferred embodiment of the present invention, it is described to improve described two lead to
The down transmitting power of the low passage of upward signal power in road can be：
By the down transmitting power lifting N dB of the low passage of the upward signal power in two passages；Wherein, the N
N times of difference of the value between the upward signal power of described two passages.
Preferably, in a particular embodiment of the present invention, the span of the n can be：0.8~1.2.For example, institute
1, now, N=can be equal to by stating n | Pch1-Pch2|。
According to the above method provided by the invention, present invention also offers logical in the subsystem of corresponding adjustment binary channels room
The device of road power, specifically refers to Fig. 4.
Fig. 4 is the structural representation of the device of the channel power in the adjustment binary channels room subsystem in the embodiment of the present invention
Figure.
As shown in figure 4, the device includes：Detection module 401 and adjusting module 402.
The detection module 401, for detecting the channel quality of user in real time；When the channel quality of the user is less than pre-
If the first threshold value and the user when being in stream transmission pattern, the upward signal that detection upper two channel receptions of RRU arrive
Power；When the difference between the upward signal power of upper two passages of the RRU is more than default second threshold value, to described
Adjusting module 402 sends adjust instruction；
The adjusting module 402 is low for improving the upward signal power in described two passages according to adjust instruction
The down transmitting power of passage.
In summary, in the inventive solutions, due to the channel quality of user can be detected in real time, and user is worked as
Channel quality when be in stream transmission pattern less than default first threshold value and the user, detection upper two passages of RRU
The upward signal power received, then again when the difference between the upward signal power of upper two passages of the RRU is more than in advance
If the second threshold value when, improve the down transmitting power of the low passage of upward signal power in described two passages, so as to
Can be according to practical situations, the down transmitting power of the low passage of adjust automatically upward signal power, thus lifted overall
Signal quality, effectively lift the handling capacity of user, but also can significantly reduce huge caused by artificial selective examination
Workload and cost.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements done etc., should be included within the scope of protection of the invention with principle.
Claims (9)
- A kind of 1. method for adjusting the channel power in the subsystem of binary channels room, it is characterised in that this method includes：The channel quality of detection user in real time；When the channel quality of the user is less than default first threshold value and the user is in stream transmission pattern, detection The upward signal power that upper two channel receptions of RRU arrive；When the difference between the upward signal power of upper two passages of the RRU is more than default second threshold value, institute is improved State the down transmitting power of the low passage of upward signal power in two passages；Before the down transmitting power of the low passage of the upward signal power improved in described two passages, this method is also Further comprise：Calculate the difference between the upward signal power that two channel receptions arrive on the RRU within the period of preset length Average value, using the average value of the difference as the difference between the upward signal power of described two passages.
- 2. according to the method for claim 1, it is characterised in that the channel quality of the detection user in real time includes：The Reference Signal Received Power RSRP of reporting of user is detected.
- 3. according to the method for claim 2, it is characterised in that the RSRP to reporting of user, which carries out detection, to be included：The average value of the RSRP of reporting of user within the period of preset length is calculated, using the average value of the RSRP as detection As a result.
- 4. according to the method for claim 1, it is characterised in thatThe span of first threshold value is：- 80~-100dBm.
- 5. according to the method for claim 1, it is characterised in thatThe span of second threshold value is：5~8dB.
- 6. according to the method for claim 3, it is characterised in that：The length of the period of the preset length is：15 seconds, 30 seconds or 60 seconds.
- 7. according to the method for claim 1, it is characterised in that the upward signal power improved in described two passages The down transmitting power of low passage includes：By the down transmitting power lifting N dB of the low passage of the upward signal power in two passages；Wherein, n times of difference of the value of the N between the upward signal power of described two passages.
- 8. according to the method for claim 7, it is characterised in thatThe span of the n is：0.8~1.2.
- 9. a kind of device for adjusting the channel power in the subsystem of binary channels room, it is characterised in that the device includes：Detection module And adjusting module；The detection module, for detecting the channel quality of user in real time；When the channel quality of the user is less than default the One threshold value and when the user is in stream transmission pattern, the upward signal power that detection upper two channel receptions of RRU arrive；When When difference between the upward signal power of upper two passages of RRU is more than default second threshold value, to the adjustment mould Block sends adjust instruction；The adjusting module, under the passage low for improving the upward signal power in described two passages according to adjust instruction Row transmission power；It is also further before the down transmitting power of the low passage of the upward signal power improved in described two passages Including：Calculate the difference between the upward signal power that two channel receptions arrive on the RRU within the period of preset length Average value, using the average value of the difference as the difference between the upward signal power of described two passages.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106330279B (en) * | 2015-07-01 | 2020-02-14 | 华为技术有限公司 | Method and device for realizing resource allocation by applying network architecture |
| CN105101438A (en) * | 2015-07-10 | 2015-11-25 | 努比亚技术有限公司 | Data allocation method and device for multiple data channels |
| CN107333291B (en) * | 2016-04-29 | 2020-09-11 | 大唐移动通信设备有限公司 | Detection method and device for RRU channel |
| CN110677177B (en) * | 2018-07-03 | 2021-06-04 | 中国移动通信有限公司研究院 | Method and base station for adaptively selecting transmission mode |
| CN113490266A (en) * | 2021-07-07 | 2021-10-08 | 维沃移动通信有限公司 | Method and device for adjusting uplink power level and electronic equipment |
| CN116208215A (en) * | 2021-11-30 | 2023-06-02 | 中兴通讯股份有限公司 | Signal compensation method, electronic device, and computer-readable storage medium |
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