CN103686973B - Power adjustment method and device of remote radio unit - Google Patents
Power adjustment method and device of remote radio unit Download PDFInfo
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- CN103686973B CN103686973B CN201310745823.2A CN201310745823A CN103686973B CN 103686973 B CN103686973 B CN 103686973B CN 201310745823 A CN201310745823 A CN 201310745823A CN 103686973 B CN103686973 B CN 103686973B
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Abstract
The invention discloses a power adjustment method and device of a remote radio unit. The power adjustment method and device are used for achieving simply adjusting transmission power of the remote radio unit (RRU), improving optimization efficiency and saving a large amount of material cost and workload of engineering construction on the premise of not affecting achievement and performance of the existing system. The power adjustment method includes determining the RRU needing transmission power adjustment; determining the adjusted transmission power of the RRU needing transmission power adjustment; configuring the correspondence of the adjusted transmission power of the RRU needing transmission power adjustment and signal amplitude to the RRU needing transmission power adjustment by operating and maintaining an OM channel.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of Remote Radio Unit（Radio Remote Unit,
RRU）Power regulating method and device.
Background technology
In Long Term Evolution（Long Term Evolution, LTE）It is extremely important to the covering in building in system
's.Predict according to associated mechanisms, the 4G stages（LTE）About 80% portfolio comes from interior.Therefore, each operation commercial city is energetically
Indoor distributed system is built, or improves depth coverage condition, improve user satisfaction, lift wireless network overall performance.
Solve in-door covering, existing two kinds of Jing frequently with method include：Indoor distributed system and outdoor compartment system.Room
Interior compartment system is for indoor user group, a kind of successful scheme for improving mobile communication environment in building；It is profit
The signal of mobile base station is uniformly distributed into every nook and cranny indoors with domestic aerial compartment system, so as to ensure that room area possesses
Preferably signal is covered.It is consistent with indoor distributed system in outdoor compartment system principle, it is mainly used in indoor point cannot be built
The covering of the building of distribution system, antenna installation is outside the building covered at building to interior, for example resident
Cell etc..To avoid producing stronger interference, both approaches are all using the construction principle of " multiple antennas, small-power ", antenna point
Many, area coverage is big, and the loss of antenna-feedback system is also big, it is therefore desirable to which more Remote Radio Unit is covered.Traditional
In system, each Remote Radio Unit one cell of correspondence, and demand of the LTE system to big bandwidth, cause it to be difficult to as 2G, 3G
The such inter-frequency networking of system, multiple minizones are very big using the probability of identical networking.Therefore, the interference between multiple co-frequency cells
Will be extremely serious, cause system core parameter to indicate that (Key Performance Indicator, KPI) index deteriorates, systematicness
Can decline, therefore, indoor and outdoor compartment system Jing merges into multiple Remote Radio Unit frequently with the method for cell combining
One cell, expands MPS process area, reduces presence of intercell interference, reduces switching times.Cell combining technology has become LTE solutions
The current techique that certainly indoor depth is covered.
But, in the optimization process to in-door covering, different building, the environment of different floors are likely to be not
With, the interference to other cells in outdoor macro cell and building is also different, it is therefore desirable to different RRU targetedly
Power adjustment is carried out, on the premise of the region performance for covering this RRU does not produce impact, reduces the interference to other cells.
Consequently, it is frequently necessary to configure different power to different RRU.But after using cell combining technology, by adjusting cell power
Method all of RRU configuration power can be made to change, it is impossible to reach carries out work(according to different environment to corresponding RRU
The purpose of rate adjustment, is not easy to indoor and outdoor compartment system coverage optimization.
In common merging cell, cell has a set of nominal power and demarcation amplitude, and by OM physical layer is allocated to
System and RRU.One cell can only have a transmission power, and broadcast in system broadcasts, to notify the power of current area
Information.Therefore, the RRU power of same cell must be consistent with cell power.Merge a certain in cell if necessary to adjustment
The transmission power of individual RRU, and other RRU are not affected, prior art cannot be realized by software arrangements.
Certain building 1-6 layers are assumed by 6 traditional MPS process, per layer is carried out by one or more Remote Radio Unit
Cover.Because LTE adopts the whole network identical networking, therefore, mutually interference is very strong for each layer minizone.Therefore, being changed to will be former 6
Cell combining is 1 cell, by the multiple floors of 1 MPS process.Now, the cell will have multiple RRU, and different RRU cover
The different floor of lid.Because multiple RRU belong to a cell together, therefore the transmission power of each RRU should be cell power, be
Identical.If configuring a different power to each RRU, multiple cells are split into equivalent to by current area, system will
The data of multiple cells are safeguarded, the complexity of system realization will be greatly improved.But in actual optimization process, due to different
The power that region needs is different, inevitably to adjust the transmission power of each RRU, and traditional method is subsystem indoors
On install attenuator additional, not only need engineering to apply relatively difficult, and increased construction cost, and covering side of the prior art
Formula, needs install attenuator additional at each Remote Radio Unit, and press existing capacity of equipment, can support several or even tens
RRU merges into a cell, and above-mentioned method of adjustment needs to expend substantial amounts of manpower and resource.
For also Jing often applies cell combining technology in outdoor compartment system, the outdoor that the wire of highway etc. is covered
Scene also Jing frequently with, these scenes can by adjust antenna angle of declination and azimuth reducing the interference of minizone,
But need engineering construction, it is impossible to interference is reduced as desired by the transmission power of the RRU for adjusting a certain area covered.
In sum, in existing technical scheme, adjusting the method for room subsystem transmission power mainly has above kind, and one is
The transmission power of adjustment cell, this can be such that the transmission power of the RRU of the cell institute band adjusts, it is difficult to meet in-door covering
The requirement adjusted for the power of certain floor, special scenes during optimization.Another kind of method is that room subsystem is transformed, and is needed
Engineering construction is wanted, is increased or is changed the attenuator in the subsystem of room, long construction period, high cost has a strong impact on Optimization Progress.
The content of the invention
The power regulating method and device of a kind of Remote Radio Unit are embodiments provided, not affect
On the premise of systematic realization and performance, realize adjusting the transmission power of RRU simplerly, improve optimization efficiency, save
Substantial amounts of material cost and the workload of engineering construction.
A kind of transmission power adjustment method of radio frequency remote unit RRU provided in an embodiment of the present invention, including：
It is determined that needing the RRU for adjusting transmission power；
It is determined that need adjust transmission power RRU adjustment after transmission power；
The corresponding relation of the transmission power after adjustment and signal amplitude is allocated to by the need by Operation and Maintenance OM passages
Adjust the RRU of transmission power.
So as to according to the transmission power level after cell peak power and each RRU adjustment, by Operation and Maintenance OM passages to not
With the transmission powers set up respectively after different adjustment of RRU and signal amplitude corresponding relation, so as to can be in cell configuration not
In the case of change, realize that the different RRU power of same cell are different.Can compartment system, outdoor compartment system indoors
When merging optimizing cells, the transmission power of each RRU is easily adjusted by Operation and Maintenance software, realized in a cell
The purpose that the transmission power of multiple RRU is adjusted respectively, on the premise of the realization and performance for not affecting existed system, realizes more
Plus simply adjust RRU transmission power, be easy to Optimization Work, improve optimization efficiency, save substantial amounts of material cost and
The workload of engineering construction.
It is preferred that determine the RRU for needing to adjust transmission power, including：
Determine default RRU transmission powers adjustment table, wherein, the RRU transmission powers adjustment table includes RRU indexes and work(
Corresponding relation between rate adjusted value, and the nominal power of cell, the power adjustment is that the transmission power after adjustment subtracts
The value for going the nominal power to obtain；
Determine RRU indexes not corresponding to 0 power adjustment in the RRU transmission powers adjustment table, this is indexed
Corresponding RRU is used as the RRU for needing to adjust transmission power.
It is preferred that determination needs the transmission power after the adjustment of the RRU for adjusting transmission power, including：
According to the RRU transmission powers adjust table, it is determined that need adjust transmission power RRU index corresponding to power
Adjusted value, using the power adjustment and the nominal power and as after the adjustment of the RRU for needing to adjust transmission power
Transmission power.
It is preferred that determination is needed after the transmission power after the adjustment of the RRU for adjusting transmission power, the method also includes：
Whether judgement needs the transmission power after the adjustment of the RRU for adjusting transmission power more than default RRU peak powers；
Then the transmission power after the adjustment is allocated to by the RRU bags for needing to adjust transmission power by OM passages
Include：When the transmission power after the adjustment of the RRU for needing to adjust transmission power is not more than default RRU peak powers, by OM
Passage is allocated to the corresponding relation of the transmission power after the adjustment and signal amplitude described to need to adjust transmission power
RRU。
It is preferred that the method also includes：
When the transmission power after the adjustment of the RRU for needing to adjust transmission power is more than default RRU peak powers, generate
RRU power adjusts infirm information and exports to user.
It is preferred that the corresponding relation of the transmission power after the adjustment and signal amplitude is allocated to by OM passages described
The RRU for adjusting transmission power is needed, including：
Baseband processing unit BBU is by the corresponding relation of the transmission power after the adjustment and signal amplitude by BBU
OM be allocated to it is described need adjust transmission power RRU in OM.
A kind of transmit power adjustment means of radio frequency remote unit RRU provided in an embodiment of the present invention, including：
RRU determining units, for determining the RRU for needing to adjust transmission power；
Power determining unit, for the transmission power after the adjustment for determining the RRU for needing to adjust transmission power；
Dispensing unit, for by Operation and Maintenance OM passages by the corresponding relation of the transmission power after adjustment and signal amplitude
It is allocated to the RRU for needing to adjust transmission power.
It is preferred that the RRU determining units, specifically for：
Determine default RRU transmission powers adjustment table, wherein, the RRU transmission powers adjustment table includes RRU indexes and work(
Corresponding relation between rate adjusted value, and the nominal power of cell, the power adjustment is that the transmission power after adjustment subtracts
The value for going the nominal power to obtain；
Determine RRU indexes not corresponding to 0 power adjustment in the RRU transmission powers adjustment table, this is indexed
Corresponding RRU is used as the RRU for needing to adjust transmission power.
It is preferred that power determining unit, specifically for：
According to the RRU transmission powers adjust table, it is determined that need adjust transmission power RRU index corresponding to power
Adjusted value, using the power adjustment and the nominal power and as after the adjustment of the RRU for needing to adjust transmission power
Transmission power.
It is preferred that power determining unit is additionally operable to：It is determined that need adjust transmission power RRU adjustment after transmitting work(
After rate, whether judgement needs the transmission power after the adjustment of the RRU for adjusting transmission power more than default RRU peak powers；
Dispensing unit specifically for：The transmission power after adjustment of the RRU for needing to adjust transmission power is no more than default
RRU peak powers when, the corresponding relation of the transmission power after adjustment and signal amplitude is allocated to by the need by OM passages
Adjust the RRU of transmission power.
It is preferred that power determining unit is additionally operable to：
When the transmission power after the adjustment of the RRU for needing to adjust transmission power is more than default RRU peak powers, generate
RRU power adjusts infirm information and exports to user.
It is preferred that OM of the dispensing unit in baseband processing unit BBU is by the transmission power and signal after adjustment
The corresponding relation of amplitude be allocated to it is described need adjust transmission power RRU in OM.
Description of the drawings
Fig. 1 is RRU power adjustment systems schematic diagram provided in an embodiment of the present invention；
Fig. 2 is that RRU power provided in an embodiment of the present invention adjusts idiographic flow schematic diagram；
Fig. 3 is that RRU power provided in an embodiment of the present invention adjusts overall procedure schematic diagram；
Fig. 4 is the structural representation of RRU power adjustment apparatus provided in an embodiment of the present invention.
Specific embodiment
The power regulating method and device of a kind of Remote Radio Unit are embodiments provided, not affect
On the premise of systematic realization and performance, realize adjusting the transmission power of RRU simplerly, improve optimization efficiency, save
Substantial amounts of material cost and the workload of engineering construction.
The embodiment of the present invention can respectively adjust each in merging cell in fairly simple method by software arrangements
The transmission power of RRU, while making the realization of existing system and performance unaffected.
The embodiment of the present invention proposes the OM passages by LTE system, and to the different RRU of same cell different adjustment are configured
Transmission power afterwards reaches the purpose that different RRU export different power with the corresponding relation of signal amplitude, while not shadow
The function and performance of acoustic system other side.
The transmission power of RRU is adjustable, and in the adjustment of its dynamic range internal power supported its radio frequency is had no effect on
Index.Cell nominal power and demarcation amplitude are allocated to RRU, power and width of the RRU according to configuration by base station when cell is set up
Degree, to by unit --- the baseband processing unit based on bandwidth（Bandwidth Based Unit, BBU）The number for passing over
Converted according to amplitude, data are sent with desired power.Therefore, as long as different to the different RRU configurations in same cell
Nominal power and demarcation amplitude, you can the different RRU for realizing same cell send data with different power.
Distributed base station is constituted referring to Fig. 1, BBU and RRU, LMT is LMT Local Maintenance Terminal, installed in PC, for base
Station such as is configured, is safeguarded at the operation.
Because BBU is in the amplitude of calculating, can be calculated by the demarcation amplitude of cell and nominal power, therefore each RRU
Demarcation amplitude needs and the demarcation amplitude of cell is consistent.Therefore, to need change output RRU, it can only be changed
The configuration of nominal power.By the OM in BBU according to the index of the RRU, the nominal power after change is issued in corresponding RRU
OM。
After the completion of cell cloth is matched somebody with somebody, one RRU transmission power of OM automatic cell generations of base station adjusts table, including little
Corresponding relation between the nominal power in area, and RRU indexes and power adjustment, the power adjustment is sending out after adjustment
Penetrate power and deduct the value that the nominal power is obtained, when the transmission power of RRU and the identical nominal power of cell, the value is 0,
The display that can be similar to just like table 1 below on LMT Operation and Maintenance circle：
Table 1RRU transmission powers adjust table：
| The nominal power (dBm) of cell | 46dBm |
| RRU indexes | Power adjustment (dB) |
| RRU0 | -1 |
| RRU1 | 0 |
| RRU2 | -3 |
Referring to Fig. 2, adjustment RRU power methods provided in an embodiment of the present invention specifically include step：
201st, the RRU for needing to adjust transmission power is determined.
Specifically, on LMT Operation and Maintenance interface, user determines n-th RRU by checking RRU transmission power adjustment tables
Transmission power need adjustment, and be indicated to BBU.
The 202nd, the transmission power adjusted value of n-th RRU is further set by the interface, for example, reduces 3dB, then on the boundary
The transmission power adjusted value that n-th RRU is arranged on face is -3, and is indicated to BBU.
203rd, the OM of BBU can be according to the nominal power of cell, and the transmission power adjusted value of n-th RRU calculates this
Transmission power after the nominal power value of RRU, the i.e. adjustment of n-th RRU.
204th, the OM of BBU judges the whether peak power more than RRU of the transmission power after the adjustment of n-th RRU, when super
When crossing RRU peak powers, execution step 207 points out power to go beyond the scope, and configuration does not come into force；Otherwise, execution step 205.
205th, the corresponding relation of the transmission power after the adjustment of n-th RRU and signal amplitude is passed through OM passages by the OM of BBU
It is allocated to n-th RRU.
206th, adjusted successfully by the transmission power of LMT Operation and Maintenance interface prompt user's n-ths RRU.
207th, gone beyond the scope by LMT Operation and Maintenance interface prompt power, the transmission power adjustment of n-th RRU does not come into force.
The transmission power of base band data is converted into new performance number concurrent by n-th RRU by the nominal power of new configuration
Send.
It should be noted that after the modification of RRU power, there is deviation in the path loss measurement that may cause UE.Because cell send out
Penetrating power is broadcasted in system broadcasts, and UE is according to the cell transmit power received in broadcast, and the reception work(of actual measurement
Rate is calculating path loss.Deviation occurs in path loss can cause the power that terminal uplink opened loop control determines to occur with the desired value of reality
Difference.But it is up to have close-loop power control function because terminal is after access, quick power can be carried out by actual desired value
Adjustment, measures the impact very little that the deviation for producing is produced to system, can not consider.
To sum up, referring to Fig. 3, a kind of transmission power adjustment method of radio frequency remote unit RRU provided in an embodiment of the present invention,
Including step：
301st, the RRU for needing to adjust transmission power is determined；
302nd, the transmission power after the adjustment of the RRU for needing to adjust transmission power is determined；
303rd, the corresponding relation of the transmission power after adjustment and signal amplitude is allocated to by institute by Operation and Maintenance OM passages
State the RRU for needing to adjust transmission power.
Illustrate：
Existing wireless communication system is digital display circuit, and in addition to RF part, remainder is at digitized
Reason.Therefore, the transmission power of RRU needs to be digitized power expression, generally when base band and RF digital part are processed
Represented to process with the linear value of signal amplitude, it is therefore desirable to the correspondence pass set up between actual physics power and signal amplitude
The mapping of system, i.e. power calibration, it is as shown in table 2 below：
Table 2
In upper table, P_out_TX_nom is that the logarithm of the greatest physical power that equipment is supported is represented, the power bracket of expression
And the step-length of bits per inch word, by determination is implemented, A_IQ_nom_TX is the linear value of corresponding signal amplitude, if AxFor
Signal amplitude, PxFor actual transmission power, then equation below is met：
Wherein, P_out_TX_nom and A_IQ_nom_TX is cell-level parameter, therefore regardless of how many RRU in cell,
When providing A after Base-Band ProcessingxAfterwards, by normal realization, the transmission power calibration of each RRU maps identical, the actual transmission of each RRU
Power is also identical.And in embodiments of the present invention, in the cell a set of power calibration mapping is set up respectively for each RRU, so,
Although the A that Base-Band Processing is givenxIt is identical, but the real output of each RRU and differ.For example：
Cell-level parameter configuration is：
A_IQ_nom_TX 8230；
P_out_TX_nom 6400（40W）；
As the Ax=4115 be given after Base-Band Processing, output is represented as 20W, but if being directed to some RRU, its
Power calibration mapping is as shown in table 3 below：
Table 3
| Name | internal unit | default value |
| A_IQ_nom_TX | 8230 | |
| P_out_TX_nom | 1/256dBm | 3200 |
Then now by formula above, the transmission power of the RRU should be 10W.
It is preferred that determine the RRU for needing to adjust transmission power, including：
Determine default RRU transmission powers adjustment table, wherein, the RRU transmission powers adjustment table includes RRU indexes and work(
Corresponding relation between rate adjusted value, and the nominal power of cell, the power adjustment is that the transmission power after adjustment subtracts
The value for going the nominal power to obtain；
Determine RRU indexes not corresponding to 0 power adjustment in the RRU transmission powers adjustment table, this is indexed
Corresponding RRU is used as the RRU for needing to adjust transmission power.
It is preferred that determination needs the transmission power after the adjustment of the RRU for adjusting transmission power, including：
According to the RRU transmission powers adjust table, it is determined that need adjust transmission power RRU index corresponding to power
Adjusted value, using the power adjustment and the nominal power and as after the adjustment of the RRU for needing to adjust transmission power
Transmission power.
It is preferred that determination is needed after the transmission power after the adjustment of the RRU for adjusting transmission power, the method also includes：
Whether judgement needs the transmission power after the adjustment of the RRU for adjusting transmission power more than default RRU peak powers；
Then the corresponding relation of the transmission power after adjustment and signal amplitude is allocated to by OM passages described need adjustment
The RRU of transmission power includes：The transmission power after adjustment of the RRU for needing to adjust transmission power is not more than default RRU most
When high-power, the transmission power after OM passages are adjusted is allocated to the needs adjustment transmitting with the corresponding relation of signal amplitude
The RRU of power.
It is preferred that the method also includes：
When the transmission power after the adjustment of the RRU for needing to adjust transmission power is more than default RRU peak powers, generate
RRU power adjusts infirm information and exports to user.
It is preferred that the corresponding relation of the transmission power after adjustment and signal amplitude is allocated to into the needs by OM passages
The RRU of adjustment transmission power, including：
Baseband processing unit BBU matches somebody with somebody the transmission power after adjustment by the OM in BBU with the corresponding relation of signal amplitude
Put needs to adjust the OM in the RRU of transmission power to described.
With said method accordingly, referring to Fig. 4, a kind of transmit power adjustment means of radio frequency remote unit RRU, the dress
Put including：
RRU determining units 401, for determining the RRU for needing to adjust transmission power；
Power determining unit 402, for the transmission power after the adjustment for determining the RRU for needing to adjust transmission power；
Dispensing unit 403, for by Operation and Maintenance OM passages that the transmission power after adjustment is corresponding with signal amplitude
Relation is allocated to the RRU for needing to adjust transmission power.
It is preferred that the RRU determining units 401, specifically for：
Determine default RRU transmission powers adjustment table, wherein, the RRU transmission powers adjustment table includes RRU indexes and work(
Corresponding relation between rate adjusted value, and the nominal power of cell, the power adjustment is that the transmission power after adjustment subtracts
The value for going the nominal power to obtain；
Determine RRU indexes not corresponding to 0 power adjustment in the RRU transmission powers adjustment table, this is indexed
Corresponding RRU is used as the RRU for needing to adjust transmission power.
It is preferred that power determining unit 402, specifically for：
According to the RRU transmission powers adjust table, it is determined that need adjust transmission power RRU index corresponding to power
Adjusted value, using the power adjustment and the nominal power and as after the adjustment of the RRU for needing to adjust transmission power
Transmission power.
It is preferred that power determining unit 402 is additionally operable to：It is determined that need adjust transmission power RRU adjustment after send out
After penetrating power, whether judgement needs the transmission power after the adjustment of the RRU for adjusting transmission power more than default RRU maximum works
Rate；
Dispensing unit 403 specifically for：The transmission power after adjustment of the RRU for needing to adjust transmission power is not more than pre-
If RRU peak powers when, the corresponding relation of the transmission power after adjustment and signal amplitude is allocated to by OM passages described
Need the RRU for adjusting transmission power.
It is preferred that power determining unit 402 is additionally operable to：
When the transmission power after the adjustment of the RRU for needing to adjust transmission power is more than default RRU peak powers, generate
RRU power adjusts infirm information and exports to user.
It is preferred that OM of the dispensing unit 403 in baseband processing unit BBU is by the transmission power after adjustment and believes
The corresponding relation of number amplitude is allocated to described need to adjust the OM in the RRU of transmission power.
In the embodiment of the present invention, the multiple RRU merged in cell can configure different nominal powers, be tieed up by base station
Shield, the transmission power of each RRU is adjusted respectively by the nominal power in Operation and Maintenance software arrangements difference.The invention can
In simple method, the purpose adjusted respectively to the transmission power of the multiple RRU in a cell is realized.System is not affected simultaneously
Other functions and performance.By the method, can indoors compartment system, the merging optimizing cells of outdoor compartment system when,
The transmission power of each RRU is easily adjusted by Operation and Maintenance software, is easy to Optimization Work, improve optimization efficiency.Same phase
Than traditional power regulating method, the workload of substantial amounts of material cost and engineering construction can be saved.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can be using complete hardware embodiment, complete software embodiment or with reference to the reality in terms of software and hardware
Apply the form of example.And, the present invention can be adopted and wherein include the computer of computer usable program code at one or more
Usable storage medium（Including but not limited to disk memory and optical memory etc.）The shape of the computer program of upper enforcement
Formula.
The present invention is with reference to method according to embodiments of the present invention, equipment（System）And the flow process of computer program
Figure and/or block diagram are describing.It should be understood that can be by computer program instructions flowchart and/or each stream in block diagram
The combination of journey and/or square frame and flow chart and/or the flow process in block diagram and/or square frame.These computer programs can be provided
The processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced for reality by the instruction of computer or the computing device of other programmable data processing devices
The device of the function of specifying in present one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in can guide computer or other programmable data processing devices with spy
In determining the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory is produced to be included referring to
Make the manufacture of device, the command device realize in one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or
The function of specifying in multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented process, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow process of flow chart or multiple flow processs and/or block diagram one
The step of function of specifying in individual square frame or multiple square frames.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (10)
1. a kind of transmission power adjustment method of radio frequency remote unit RRU, it is characterised in that the method includes：
It is determined that needing the RRU for adjusting transmission power；
It is determined that need adjust transmission power RRU adjustment after transmission power；
The corresponding relation of the transmission power after adjustment and signal amplitude is allocated to by Operation and Maintenance OM passages described need to adjust
The RRU of whole transmission power；
It is determined that the RRU for adjusting transmission power is needed, including：
Determine default RRU transmission powers adjustment table, wherein, the RRU transmission powers adjustment table includes that RRU indexes are adjusted with power
Corresponding relation between whole value, and the nominal power of cell, the power adjustment is that the transmission power after adjustment deducts institute
State the value that nominal power is obtained；
RRU indexes not corresponding to 0 power adjustment in the RRU transmission powers adjustment table are determined, by the index correspondence
RRU as need adjust transmission power RRU.
2. method according to claim 1, it is characterised in that it is determined that after the adjustment of the RRU for needing to adjust transmission power
Transmission power, including：
According to the RRU transmission powers adjust table, it is determined that need adjust transmission power RRU index corresponding to power adjustment
Value, using the power adjustment and the nominal power and as the transmitting after the adjustment of the RRU for needing to adjust transmission power
Power.
3. method according to claim 1 and 2, it is characterised in that it is determined that after the adjustment of the RRU for needing to adjust transmission power
Transmission power after, the method also includes：Whether judgement needs the transmission power after the adjustment of the RRU for adjusting transmission power big
In default RRU peak powers；
Then the corresponding relation of the transmission power after adjustment and signal amplitude is allocated to by the needs adjustment transmitting by OM passages
The RRU of power includes：The transmission power after adjustment of the RRU for needing to adjust transmission power is not more than default RRU maximum works
During rate, the corresponding relation of the transmission power after adjustment and signal amplitude is allocated to by the needs adjustment transmitting work(by OM passages
The RRU of rate.
4. method according to claim 3, it is characterised in that the method also includes：
When the transmission power after the adjustment of the RRU for needing to adjust transmission power is more than default RRU peak powers, RRU is generated
Power adjusts infirm information and exports to user.
5. method according to claim 1, it is characterised in that by OM passages by the transmission power after the adjustment and letter
The corresponding relation of number amplitude is allocated to the RRU for needing to adjust transmission power, including：
Baseband processing unit BBU is allocated to the transmission power after adjustment by the OM in BBU with the corresponding relation of signal amplitude
It is described to need to adjust the OM in the RRU of transmission power.
6. a kind of transmit power adjustment means of radio frequency remote unit RRU, it is characterised in that the device includes：
RRU determining units, for determining the RRU for needing to adjust transmission power；
Power determining unit, for the transmission power after the adjustment for determining the RRU for needing to adjust transmission power；
Dispensing unit, for being configured the corresponding relation of the transmission power after adjustment and signal amplitude by Operation and Maintenance OM passages
To the RRU for needing to adjust transmission power；
The RRU determining units, specifically for：
Determine default RRU transmission powers adjustment table, wherein, the RRU transmission powers adjustment table includes that RRU indexes are adjusted with power
Corresponding relation between whole value, and the nominal power of cell, the power adjustment is that the transmission power after adjustment deducts institute
State the value that nominal power is obtained；
RRU indexes not corresponding to 0 power adjustment in the RRU transmission powers adjustment table are determined, by the index correspondence
RRU as need adjust transmission power RRU.
7. device according to claim 6, it is characterised in that power determining unit, specifically for：
According to the RRU transmission powers adjust table, it is determined that need adjust transmission power RRU index corresponding to power adjustment
Value, using the power adjustment and the nominal power and as the transmitting after the adjustment of the RRU for needing to adjust transmission power
Power.
8. the device according to claim 6 or 7, it is characterised in that power determining unit is additionally operable to：It is determined that needing adjustment
After transmission power after the adjustment of the RRU of transmission power, judgement needs the transmitting work(after the adjustment of the RRU for adjusting transmission power
Whether rate is more than default RRU peak powers；
Dispensing unit specifically for：The transmission power after adjustment of the RRU for needing to adjust transmission power is not more than default RRU
During peak power, the transmission power after the adjustment is allocated to by the RRU for needing to adjust transmission power by OM passages.
9. device according to claim 8, it is characterised in that power determining unit is additionally operable to：
When the transmission power after the adjustment of the RRU for needing to adjust transmission power is more than default RRU peak powers, RRU is generated
Power adjusts infirm information and exports to user.
10. device according to claim 6, it is characterised in that the dispensing unit is by baseband processing unit BBU
OM is allocated to the corresponding relation of the transmission power after adjustment and signal amplitude in the RRU for needing and adjust transmission power
OM。
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| CN106413073B (en) * | 2015-07-31 | 2021-06-01 | 中兴通讯股份有限公司 | Dynamic power allocation method and device for MRRU cell |
| CN107135513A (en) * | 2016-02-29 | 2017-09-05 | 中兴通讯股份有限公司 | Pilot frequency collocation method and device based on Remote Radio Unit cell combining |
| CN109076461B (en) * | 2016-02-29 | 2021-07-13 | 康普技术有限责任公司 | Automatic power configuration for point-to-multipoint distributed radio access networks |
| CN107181252A (en) * | 2016-03-11 | 2017-09-19 | 华为技术有限公司 | Power supply control apparatus, electric power system, load and base station |
| CN107801238B (en) * | 2016-09-05 | 2022-08-02 | 中兴通讯股份有限公司 | Method and device for inter-cell power cooperation in LTE scene |
| CN109587691B (en) * | 2017-09-28 | 2022-03-04 | 中国移动通信集团浙江有限公司 | Power adjustment method and system for cell distribution |
| CN112752327B (en) * | 2019-10-29 | 2023-10-20 | 上海华为技术有限公司 | Power adjustment method and access network equipment |
| CN112929088B (en) * | 2019-12-06 | 2022-10-28 | 华为技术有限公司 | Central unit, remote unit, small station system and communication method |
| CN113055913B (en) * | 2021-03-26 | 2023-02-17 | 联想(北京)有限公司 | Information processing method and device |
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