CN104469907A - Power consumption control method and device for remote radio unit - Google Patents

Power consumption control method and device for remote radio unit Download PDF

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Publication number
CN104469907A
CN104469907A CN201410653204.5A CN201410653204A CN104469907A CN 104469907 A CN104469907 A CN 104469907A CN 201410653204 A CN201410653204 A CN 201410653204A CN 104469907 A CN104469907 A CN 104469907A
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submodule
module
downlink dedicated
rru
switched
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CN201410653204.5A
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CN104469907B (en
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杨明
段滔
孙华荣
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SHANGHAI DATANG MOBILE COMMUNICATION EQUIPMENT CO Ltd
Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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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
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a power consumption control method and device for a remote radio unit (RRU). The power consumption control method for the RRU comprises the steps that when it reaches a first preset time after switching to the uplink time slot is conducted, a data source used for providing data for downlink special sub-modules is switched to a preset internal data source; at least one of the downlink special sub-modules is stopped each time according to a first preset time interval till all the downlink special sub-modules are stopped; after all the downlink sub-modules are closed, the data source used for providing data for the downlink special sub-modules is switched to a BBU data source; when it reaches a second preset time after switching to the uplink time slot is conducted, the data source used for providing data for the downlink special sub-modules is switched to the preset internal data source; at least one of the downlink special sub-modules is started each time according to a second preset time interval till all the downlink special sub-modules are started. According to the power consumption control method for the RRU, on the basis that the power consumption of the RRU is reduced, periodical power supply stray interference is greatly reduced.

Description

The power consumption control method of RF remote unit RRU and device
Technical field
The present invention relates to communication technical field, particularly relate to the power consumption control method of a kind of RF remote unit RRU and the power consumption control apparatus of a kind of RF remote unit RRU.
Background technology
Along with the development of the communication technology, in order to solve the in-door covering problem of large stadium better, propose a kind of novel distributed network replace mode, BBU (Base band Unit is divided into by base station, Base Band Unit) and RRU (Radio Remote Unit, RF remote unit), by using Fiber connection between BBU and RRU.Large Copacity macrocell base stations is concentrated and is placed in central machine room by it, BBU part focuses on, adopt optical fiber to move the radio-frequency module in base station to RRU, on the determined website of the network planning that is placed in, thus save a large amount of machine rooms required for conventional solution; Fiber optic stretch simultaneously by adopting the support of Large Copacity macro base station a large amount of, can realize the conversion between capacity and covering.
At TD (Time Division, time-division) in standard, the up-downgoing process of RRU is time-sharing work, and the most of module so in RRU is all available free state, how reducing the power consumption of these modules when idle condition, is the striving direction that RRU saves energy and reduce the cost.
FPGA (Field-Programmable Gate Array, field programmable gate array) in, clock controls BUF (buffer register) distribution of pin by band, different clocks is distributed by giving the modules in RRU, according to the clock control pin of uplink and downlink timeslot configuring condition switch corresponding module, just corresponding module can be opened or closed.There are some downlink dedicated modules in RRU, these modules only just can be used in descending time slot, therefore, these downlink dedicated modules can be closed after being switched to ascending time slot, these downlink dedicated modules are opened again after being switched to descending time slot, thus reach the object of dynamic adjustments RRU power consumption, reduce RRU power consumption.
But, although RRU power consumption can be reduced according to the method described above, expose again following problem: these downlink dedicated modules to be opened continually, closing process, the FPGA power source loads cyclic variation belonging to it will be caused, thus introduce periodic power supply clutter interference, and this disturbs the reference clock exported by FPGA, can be diffused into again in whole uplink downlink by clock circuit, thus affect RRU performance, especially, in the scheme of monolithic FPGA realization, this problem is particularly serious.Therefore, in order to avoid introducing periodic power supply clutter interference, all full-time gap can open these downlink dedicated modules in a lot of application scenario, the power consumption of such RRU just can promote again.
Therefore, the scheme carrying out controlling for RRU power consumption at present cannot realize reducing again periodic power supply clutter interference while reduction RRU power consumption.
Summary of the invention
The invention provides power consumption control method and the device of a kind of RF remote unit RRU, to solve the problem that current RRU power consumption control scheme cannot realize reducing again periodic power supply clutter interference while reducing RRU power consumption.
In order to solve the problem, the invention discloses the power consumption control method of a kind of RF remote unit RRU, described RRU comprises only in the downlink dedicated module of descending time slot application, described downlink dedicated module is divided into multiple downlink dedicated submodule in advance, and each downlink dedicated submodule is controlled separately;
Described method comprises:
When arriving the first Preset Time after being switched to ascending time slot, the data source of data is provided to be switched to default internal data source by for described downlink dedicated submodule;
Close at least one in described downlink dedicated submodule, until close whole downlink dedicated submodule according to the first prefixed time interval at every turn;
After Close All downlink dedicated submodule, the data source of data is provided to be switched to Base Band Unit BBU data source by for described downlink dedicated submodule;
When arriving the second Preset Time after being switched to ascending time slot, the data source of data is provided to be switched to default internal data source by for described downlink dedicated submodule;
Open at least one in described downlink dedicated submodule, until open whole downlink dedicated submodule according to the second prefixed time interval at every turn.
Preferably, described downlink dedicated module is divided by the antenna number according to described RRU, the downlink dedicated submodule of each antenna at least one cascade corresponding, the corresponding rank of downlink dedicated submodule of each cascade.
Preferably, the described step of at least one of at every turn closing in described downlink dedicated submodule according to the first prefixed time interval comprises:
For the downlink dedicated submodule that each antenna is corresponding, according to the order being clipped to first rank from last grade, close at least one in described downlink dedicated submodule according to the first prefixed time interval at every turn.
Preferably, the described step of at least one of at every turn opening in described downlink dedicated submodule according to the second prefixed time interval comprises:
For the downlink dedicated submodule that each antenna is corresponding, according to the order being clipped to last rank from first level, open at least one in described downlink dedicated submodule according to the second prefixed time interval at every turn.
Preferably, described downlink dedicated module comprises peak factor reduction CFR module and digital pre-distortion DPD module; Described CFR module is divided by the antenna number according to RRU, the CFR submodule of each antenna at least one cascade corresponding, the corresponding rank of descending CFR submodule of each cascade; Described DPD module is divided by the antenna number according to RRU, the DPD submodule of each antenna at least one cascade corresponding, the corresponding rank of DPD submodule of each cascade; The CFR submodule of last rank is connected with the DPD submodule of first rank.
Preferably, when described first Preset Time is for being initially switched to ascending time slot, described second Preset Time is for being switched to the time after ascending time slot between 1/2nd time slot to four/tri-time slots.
Preferably, described RRU also comprises Digital Up Convert DUC module, descending time delay buffer module, Digital Down Convert DDC module and uplink time delay buffer module; Described DUC module is divided into multiple DUC submodule according to the variable number of described RRU in advance, the corresponding DUC submodule of each carrier wave; Described descending time delay buffer module is divided into multiple descending time delay buffer sublayer module according to the variable number of described RRU in advance, the corresponding descending time delay buffer sublayer module of each carrier wave; Described DDC module is divided into multiple DDC submodule according to the variable number of described RRU in advance, the corresponding DDC submodule of each carrier wave; Described uplink time delay buffer module is divided into multiple uplink time delay buffer sublayer module according to the variable number of described RRU in advance, the corresponding uplink time delay buffer sublayer module of each carrier wave;
Described method also comprises:
After being switched to ascending time slot, determine the carrier wave that current business takies, and the DDC submodule that described in opening, the carrier wave that takies is corresponding and uplink time delay buffer sublayer module;
After being switched to descending time slot, determine the carrier wave that current business takies, and the DUC submodule that described in opening, the carrier wave that takies is corresponding and descending time delay buffer sublayer module.
According to a further aspect in the invention, also disclose the power consumption control apparatus of a kind of RF remote unit RRU, it is characterized in that, described RRU comprises only in the downlink dedicated module of descending time slot application, described downlink dedicated module is divided into multiple downlink dedicated submodule in advance, and each downlink dedicated submodule is controlled separately;
Described device comprises:
First handover module, during for arriving the first Preset Time after being switched to ascending time slot, provides the data source of data to be switched to default internal data source by for described downlink dedicated submodule;
Closing module, for closing at least one in described downlink dedicated submodule according to the first prefixed time interval at every turn, until close whole downlink dedicated submodule;
Second handover module, for after Close All downlink dedicated submodule, provides the data source of data to be switched to Base Band Unit BBU data source by for described downlink dedicated submodule;
Described first handover module, time also for arriving the second Preset Time after being switched to ascending time slot, provides the data source of data to be switched to default internal data source by for described downlink dedicated submodule;
Opening module, for opening at least one in described downlink dedicated submodule according to the second prefixed time interval at every turn, until open whole downlink dedicated submodule.
Preferably, described downlink dedicated module is divided by the antenna number according to described RRU, the downlink dedicated submodule of each antenna at least one cascade corresponding, the corresponding rank of downlink dedicated submodule of each cascade.
Preferably, described closing module, specifically for for downlink dedicated submodule corresponding to each antenna, according to the order being clipped to first rank from last grade, closes at least one in described downlink dedicated submodule according to the first prefixed time interval at every turn.
Preferably, described opening module, specifically for for downlink dedicated submodule corresponding to each antenna, according to the order being clipped to last rank from first level, opens at least one in described downlink dedicated submodule according to the second prefixed time interval at every turn.
Preferably, described downlink dedicated module comprises peak factor reduction CFR module and digital pre-distortion DPD module; Described CFR module is divided by the antenna number according to RRU, the CFR submodule of each antenna at least one cascade corresponding, the corresponding rank of descending CFR submodule of each cascade; Described DPD module is divided by the antenna number according to RRU, the DPD submodule of each antenna at least one cascade corresponding, the corresponding rank of DPD submodule of each cascade; The CFR submodule of last rank is connected with the DPD submodule of first rank.
Preferably, when described first Preset Time is for being initially switched to ascending time slot, described second Preset Time is for being switched to the time after ascending time slot between 1/2nd time slot to four/tri-time slots.
Preferably, described RRU also comprises Digital Up Convert DUC module, descending time delay buffer module, Digital Down Convert DDC module and uplink time delay buffer module; Described DUC module is divided into multiple DUC submodule according to the variable number of described RRU in advance, the corresponding DUC submodule of each carrier wave; Described descending time delay buffer module is divided into multiple descending time delay buffer sublayer module according to the variable number of described RRU in advance, the corresponding descending time delay buffer sublayer module of each carrier wave; Described DDC module is divided into multiple DDC submodule according to the variable number of described RRU in advance, the corresponding DDC submodule of each carrier wave; Described uplink time delay buffer module is divided into multiple uplink time delay buffer sublayer module according to the variable number of described RRU in advance, the corresponding uplink time delay buffer sublayer module of each carrier wave;
Described device also comprises:
Control module, for after being switched to ascending time slot, determines the carrier wave that current business takies, and the DDC submodule that described in opening, the carrier wave that takies is corresponding and uplink time delay buffer sublayer module; And, after being switched to descending time slot, determine the carrier wave that current business takies, and the DUC submodule that described in opening, the carrier wave that takies is corresponding and descending time delay buffer sublayer module.
Compared with prior art, the present invention includes following advantage:
Be multiple downlink dedicated submodules by downlink dedicated Module Division in advance in the present invention, each downlink dedicated submodule is controlled separately.When arriving the first Preset Time after being switched to ascending time slot, the data source of data is provided to be switched to default internal data source by for downlink dedicated submodule; Close at least one in downlink dedicated submodule, until close whole downlink dedicated submodule according to the first prefixed time interval at every turn; After Close All downlink dedicated submodule, be switched to Base Band Unit BBU data source by providing the data source of data for downlink dedicated submodule; When arriving the second Preset Time after being switched to ascending time slot, the data source of data is provided to be switched to default internal data source by for downlink dedicated submodule; Open at least one in downlink dedicated submodule, until open whole downlink dedicated submodule according to the second prefixed time interval at every turn.Therefore the present invention is by controlling each downlink dedicated submodule separately, successively close or open downlink dedicated submodule, thus the change of power consumption is changed into gradual by sudden change, therefore on the basis reducing RRU power consumption, also greatly reduce periodic power supply clutter interference, finally clock clutter interference is controlled in tolerance interval.
Accompanying drawing explanation
Fig. 1 is the flow chart of the power consumption control method of a kind of RRU of the embodiment of the present invention one;
Fig. 2 is the flow chart of the power consumption control method of a kind of RRU of the embodiment of the present invention two;
Fig. 3 is the schematic diagram of control RRU power consumption in prior art;
Fig. 4 is the schematic diagram of ascending time slot for a kind of RRU of Fig. 3 and descending time slot power consumption;
Fig. 5 is the schematic diagram of ascending time slot for the another kind of RRU of Fig. 3 and descending time slot power consumption;
Fig. 6 is the schematic diagram of control RRU power consumption in the embodiment of the present invention three;
Fig. 7 is the schematic diagram of the change of power consumption of RRU for Fig. 6;
Fig. 8 is the structured flowchart of the power consumption control apparatus of a kind of RRU of the embodiment of the present invention four.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
The present invention proposes the power consumption control method of RRU and the power consumption control apparatus of RRU, the slow change of power consumption can be realized, while saving energy and reduce the cost to greatest extent, reduce periodic power supply clutter interference as far as possible.Below, discussed in detail respectively by each embodiment following.
Embodiment one:
RRU comprises downlink dedicated module, these downlink dedicated modules are only applied in descending time slot, and these modules can not be used in ascending time slot, therefore can close these downlink dedicated modules in ascending time slot, but if just merely closed after being switched to ascending time slot, be opened after being switched to descending time slot, although the power consumption of RRU can be reduced, but because change of power consumption is too fast, therefore can introduces periodic power supply clutter interference, thus affect RRU performance.In the embodiment of the present invention, can larger interference be introduced for during power consumption Rapid Variable Design, consider and this change of power consumption process is slowed down, namely a large stepped change, make multiple little step into, progressively lifting or decline, and then the interference produced also significantly can decline.According to this thinking, downlink dedicated module is divided into multiple downlink dedicated submodule in advance, each downlink dedicated submodule is controlled separately, and wherein, each downlink dedicated submodule can realize the function of this downlink dedicated module.
With reference to Fig. 1, show the flow chart of the power consumption control method of a kind of RRU of embodiment one.The method can comprise the following steps:
Step 101, when arriving the first Preset Time after being switched to ascending time slot, provides the data source of data to be switched to default internal data source by for described downlink dedicated submodule.
In TD standard, the up-downgoing process of RRU is time-sharing work, realize the slow change of power consumption, downlink dedicated submodule is not only in descending time slot work, some of them part also will in ascending time slot work a period of time, and in ascending time slot, if adopt BBU data source to provide data for downlink dedicated submodule, then now downlink data is fixing sends out zero, so data are just without upset, therefore also can there is acute variation in power consumption, therefore, an internal data source is introduced further in the embodiment of the present invention, Data flipping rate and the BBU data source of this internal data source are close, namely this internal data source analog BBU data source is adopted to provide data for downlink dedicated submodule, thus ensure the upset of the data inputting downlink dedicated submodule when ascending time slot, realize the smooth transition of during transition power consumption.
In the embodiment of the present invention, for the downlink dedicated submodule in RRU, mainly in ascending time slot to the control that it opens and closes.Therefore, when arriving the first Preset Time after being switched to ascending time slot, first the data source of data can be provided to be switched to default internal data source by for described downlink dedicated submodule.
Step 102, closes at least one in described downlink dedicated submodule according to the first prefixed time interval at every turn, until close whole downlink dedicated submodule.
Because downlink dedicated module can not be employed when ascending time slot, when therefore arriving the first Preset Time after being switched to ascending time slot, can close downlink dedicated submodule, thus reduce RRU power consumption.In the embodiment of the present invention, in order to realize the slow change of power consumption, avoid introducing periodic power supply clutter interference, when closing downlink dedicated submodule, be according to the first prefixed time interval close in described downlink dedicated submodule at every turn at least one, until close whole downlink dedicated submodule, i.e. slowly closing downlink dedicated submodule.
Step 103, after Close All downlink dedicated submodule, provides the data source of data to be switched to BBU data source by for described downlink dedicated submodule.
After Close All downlink dedicated submodule, be now no longer necessary for the data that downlink dedicated submodule provides upset, therefore, the data source of data can be provided to be switched to BBU data source by for described downlink dedicated submodule.
Step 104, when arriving the second Preset Time after being switched to ascending time slot, provides the data source of data to be switched to default internal data source by for described downlink dedicated submodule.
Because downlink dedicated module can be employed when descending time slot, therefore before being switched to descending time slot, when namely arriving the second Preset Time after being switched to ascending time slot, can open downlink dedicated submodule, thus ensure to use these downlink dedicated submodules smoothly in descending time slot.Therefore, when arriving the second Preset Time after being switched to ascending time slot, there is provided the data source of data to be switched to default internal data source by for described downlink dedicated submodule, thus ensure the upset being input to the data of downlink dedicated submodule, make it possible to correctly open downlink dedicated submodule.
Step 105, opens at least one in described downlink dedicated submodule according to the second prefixed time interval at every turn, until open whole downlink dedicated submodule.
In the embodiment of the present invention, in order to realize the slow change of power consumption, avoid introducing periodic power supply clutter interference, when opening downlink dedicated module, be according to the second prefixed time interval open in described downlink dedicated submodule at every turn at least one, until open whole downlink dedicated submodule, namely slowly open downlink dedicated submodule.
The embodiment of the present invention is by controlling each downlink dedicated submodule separately, successively close or open downlink dedicated submodule, thus the change of power consumption is changed into gradual by sudden change, therefore on the basis reducing RRU power consumption, also greatly reduce periodic power supply clutter interference, finally clock clutter interference is controlled in tolerance interval.
Embodiment two:
In the embodiment of the present invention, RRU comprises only in the downlink dedicated module of descending time slot application, these downlink dedicated modules are divided into multiple downlink dedicated submodule in advance, each downlink dedicated submodule is controlled separately, wherein, each downlink dedicated submodule can realize the function of this downlink dedicated module.
With reference to Fig. 2, show the flow chart of the power consumption control method of a kind of RRU of embodiment two.The method can comprise the following steps:
Step 201, after being switched to ascending time slot, determines the carrier wave that current business takies, and the DDC submodule that described in opening, the carrier wave that takies is corresponding and uplink time delay buffer sublayer module.
In the embodiment of the present invention, RRU also comprises DUC (Digital Up Converter, Digital Up Convert) module, descending time delay buffer module, Digital Down Convert DDC (Digital Down Converter, Digital Down Convert) module and uplink time delay buffer module.These modules belong to up-downgoing symmetry, and these module resources are equal, and just data flow is different, and therefore the opening and closing of these modules can not cause larger change of power consumption as descending special module, directly can switch according to uplink and downlink timeslot.
But, the traffic carrying capacity further contemplating terminal can change, the carrier wave that historical facts or anecdotes border uses also is different, therefore in the embodiment of the present invention, the module of these up-downgoing symmetries is divided into multiple independently submodule according to carrier wave, follow-uply according to actual carrier configuring condition, these submodules is controlled separately.Multiple DUC submodule is divided into according to the variable number of RRU in advance, the corresponding DUC submodule of each carrier wave by DUC module; Descending time delay buffer module is divided into multiple descending time delay buffer sublayer module according to the variable number of described RRU in advance, the corresponding descending time delay buffer sublayer module of each carrier wave; DDC module is divided into multiple DDC submodule according to the variable number of described RRU in advance, the corresponding DDC submodule of each carrier wave; Uplink time delay buffer module is divided into multiple uplink time delay buffer sublayer module according to the variable number of described RRU in advance, the corresponding uplink time delay buffer sublayer module of each carrier wave.Wherein, each DUC submodule, descending time delay buffer sublayer module, DDC submodule, uplink time delay buffer sublayer module are controlled separately respectively.
Therefore, in the embodiment of the present invention, after being switched to ascending time slot, first the carrier wave that current business takies can be determined, then DDC submodule corresponding to the carrier wave that takies and uplink time delay buffer sublayer module corresponding to the carrier wave that takies only is opened, and without the need to opening DDC submodule corresponding to unappropriated carrier wave and uplink time delay buffer sublayer module corresponding to unappropriated carrier wave again, thus reduce RRU power consumption further.In one preferred embodiment of the invention, after being switched to ascending time slot, can also the DUC submodule opened of closedown and descending time delay buffer sublayer module further.
Wherein, for the process determining the carrier wave that current business takies, the configuration information that can send according to the high level received is determined, namely can comprise the carrier information (mark of such as carrier wave) that current business takies in this configuration information, can determine according to the information of this carrier wave the carrier wave that current business takies.In the embodiment of the present invention, unlatching for DDC submodule and uplink time delay buffer sublayer module can by sending the clock enable signal that instruction is opened to it, open its clock, closedown for DUC submodule and descending time delay buffer sublayer module by sending the clock enable signal that instruction is closed to it, can close its clock.
Step 202, when arriving the first Preset Time after being switched to ascending time slot, provides the data source of data to be switched to default internal data source by for described downlink dedicated submodule.
In the embodiment of the present invention, it is the internal data source that downlink dedicated submodule provides the data source of data can comprise BBU data source and preset.After switching road ascending time slot, the data that BBU data source provides will be all zero, if use this BBU data source to provide data for downlink dedicated submodule, the acute variation of power consumption will be caused, therefore when being switched to after ascending time slot, first the data source of data can be provided to be switched to default internal data source by for downlink dedicated submodule, namely this internal data source analog BBU data source is adopted to provide data for downlink dedicated submodule, thus ensure the upset of the data inputting downlink dedicated submodule when ascending time slot, realize the smooth transition of during transition power consumption.In the embodiment of the present invention, the data source switching signal that can be switched to internal data source by sending instruction controls to be switched to internal data source.
In one preferred embodiment of the invention, this step is performed when can arrive the first Preset Time after being switched to ascending time slot, for the first Preset Time, those skilled in the art carry out relevant setting according to practical experience, and the embodiment of the present invention is not limited concrete numerical value.When the first Preset Time preferably can be set to initially be switched to ascending time slot in the embodiment of the present invention.
Step 203, closes at least one in described downlink dedicated submodule according to the first prefixed time interval at every turn, until close whole downlink dedicated submodule.
In one preferred embodiment of the invention, downlink dedicated module is divided by the antenna number according to RRU, the downlink dedicated submodule of each antenna at least one cascade corresponding, the corresponding rank of downlink dedicated submodule of each cascade.Because data flow is unidirectional, therefore for the downlink dedicated submodule that each antenna is corresponding, after it is chained together, the flow direction of data is also unidirectional, namely from the downlink dedicated submodule of last rank of downlink dedicated submodule single flow direction of first rank.Therefore when closing downlink dedicated submodule, according to the orderly close-down contrary with data flow.
Therefore, this step 203 specifically can comprise: for the downlink dedicated submodule that each antenna is corresponding, according to the order being clipped to first rank from last grade, closes at least one in described downlink dedicated submodule according to the first prefixed time interval at every turn.Wherein, can in the light of actual conditions arrange arbitrarily for the first prefixed time interval, the first prefixed time interval is larger, then change of power consumption is slower, and the first prefixed time interval is less, then change of power consumption is quicker.Number for each downlink dedicated submodule of closing can in the light of actual conditions be arranged arbitrarily, the number of the downlink dedicated submodule of each closedown can be the same or different, the number of each closedown is fewer, then change of power consumption is slower, the number of each closedown is more, then change of power consumption is quicker.
In the embodiment of the present invention, can be closed downlink dedicated submodule by tranmitting data register enable signal.Therefore, when closing certain downlink dedicated submodule, the clock enable signal of instruction closedown can be sent to this downlink dedicated submodule, close its clock.
Step 204, after Close All downlink dedicated submodule, provides the data source of data to be switched to Base Band Unit BBU data source by for described downlink dedicated submodule.
After Close All downlink dedicated submodule, be now no longer necessary for the data that downlink dedicated submodule provides upset, therefore, the data source of data can be provided to be switched to BBU data source by for described downlink dedicated submodule.In the embodiment of the present invention, the data source switching signal that can be switched to BBU data source by sending instruction controls to be switched to BBU data source.
Step 205, when arriving the second Preset Time after being switched to ascending time slot, provides the data source of data to be switched to default internal data source by for described downlink dedicated submodule.
Because downlink dedicated module can be employed when descending time slot, therefore before being switched to descending time slot namely in ascending time slot, can open downlink dedicated module, thus ensure to use these downlink dedicated modules smoothly in descending time slot.In order to ensure to open downlink dedicated submodule smoothly in ascending time slot, also need by internal data source for downlink dedicated submodule provides data, therefore, the data source of data can be provided to be switched to default internal data source by for downlink dedicated submodule open downlink dedicated submodule in ascending time slot before, thus ensure the upset being input to the data of downlink dedicated submodule, make it possible to correctly open downlink dedicated submodule.
In one preferred embodiment of the invention, this step is performed when can arrive the second Preset Time after being switched to ascending time slot, for the second Preset Time, those skilled in the art carry out relevant setting according to practical experience, and the embodiment of the present invention is not limited concrete numerical value.Second Preset Time preferably can be set to be switched to the time between 1/2nd time slot to four/tri-time slots after ascending time slot in the embodiment of the present invention.
Step 206, opens at least one in described downlink dedicated submodule according to the second prefixed time interval at every turn, until open whole downlink dedicated submodule.
Because data flow is unidirectional, therefore for the downlink dedicated submodule that each antenna is corresponding, after it is chained together, the flow direction of data is also unidirectional, namely from the downlink dedicated submodule of last rank of downlink dedicated submodule single flow direction of first rank.Therefore, when opening downlink dedicated submodule, to open according to the order identical with data flow.
Therefore, this step 206 specifically can comprise: for the downlink dedicated submodule that each antenna is corresponding, according to the order being clipped to last rank from first level, opens at least one in described downlink dedicated submodule according to the second prefixed time interval at every turn.Wherein, can in the light of actual conditions arrange arbitrarily for the second prefixed time interval, the second prefixed time interval is larger, then change of power consumption is slower, and the second prefixed time interval is less, then change of power consumption is quicker.Number for each downlink dedicated submodule opened can in the light of actual conditions be arranged arbitrarily, the number of the downlink dedicated submodule of each unlatching can be the same or different, the number of each unlatching is fewer, then change of power consumption is slower, the number of each unlatching is more, then change of power consumption is quicker.
In the embodiment of the present invention, can be opened downlink dedicated submodule by tranmitting data register enable signal.Therefore, when opening certain downlink dedicated submodule, the clock enable signal of instruction unlatching can be sent to this downlink dedicated submodule, open its clock.
Step 207, after being switched to descending time slot, determines the carrier wave that current business takies, and the DUC submodule that described in opening, the carrier wave that takies is corresponding and descending time delay buffer sublayer module.
After being switched to descending time slot, need application DUC submodule and descending time delay buffer sublayer module, therefore the carrier wave that current business takies can first be determined, then DUC submodule corresponding to the carrier wave that takies and descending time delay buffer sublayer module corresponding to the carrier wave that takies only is opened, and without the need to opening DUC submodule corresponding to unappropriated carrier wave and descending time delay buffer sublayer module corresponding to unappropriated carrier wave again, thus reduce RRU power consumption further.In one preferred embodiment of the invention, after being switched to descending time slot, can also the DDC submodule opened of closedown and uplink time delay buffer sublayer module further.
Wherein, for the process determining the carrier wave that current business takies, the configuration information that can send according to the high level received is determined, namely can comprise the carrier information (mark of such as carrier wave) that current business takies in this configuration information, can determine according to the information of this carrier wave the carrier wave that current business takies.In the embodiment of the present invention, the unlatching for DUC submodule and descending time delay buffer sublayer module by sending the clock enable signal that instruction is opened to it, can open its clock; Closedown for DDC submodule and uplink time delay buffer sublayer module by sending the clock enable signal that instruction is closed to it, can close its clock.
Also it should be noted that, due to after being switched to descending time slot, BBU data source will provide normal data, instead of full zero data, therefore the data source of data can be provided to be switched to BBU data source by for downlink dedicated submodule.
The embodiment of the present invention while reduction RRU power consumption, can reduce again periodic power supply clutter interference, and opens and closes according to the module of the actual carrier case taken to up-downgoing symmetry, thus can reduce RRU power consumption further.
Embodiment three:
Below, the mode be compared with the prior art is adopted to discuss the solution of the present invention by the present embodiment three.
With reference to Fig. 3, show the schematic diagram of control RRU power consumption in prior art.In Fig. 3, ascending time slot corresponding A DC (Analog-to-digital converter, the Analog-digital Converter) interface of RRU, DDC module and uplink optical fibers time delay buffering and carrier allocation module; The corresponding downlink optical fiber time delay buffering of descending time slot and carrier allocation module, DUC module, carrier wave merge module, CFR (Crest FactorReduction, peak factor cut down) module, DPD (digital pre-distortion, digital pre-distortion) module, output protection module and DAC (Digital to analog converter, digital-to-analogue conversion) interface, wherein CFR module and DPD module are downlink dedicated module; Also comprise configurable power control switch in RRU, this power control switch can to other modules tranmitting data register enable signals, to control the opening and closing of other modules; This RRU is connected with BBU by IR (IR is the designate of " Interface between the RRU and theBBU ") interface or CPRI (Common Public Radio Interface, general common radio-frequency interface).
For Fig. 3, if adopt the mode of full-time gap work, namely no matter be at ascending time slot or at descending time slot, downlink dedicated module (CFR module and DPD module) is opening, then the ascending time slot of RRU and descending time slot power consumption are as shown in Figure 4, in ascending time slot and descending time slot, also include basic power consumption, the basic power consumption embodiment of the present invention is discussed no longer in detail at this.As shown in Figure 4, the power consumption of ascending time slot and descending time slot is substantially equal, but can produce unnecessary power consumption for the unlatching at ascending time slot being downlink dedicated module, causes RRU power consumption excessive.
For Fig. 3, if close downlink dedicated module after being switched to ascending time slot, these downlink dedicated modules are opened again after being switched to descending time slot, then the ascending time slot of RRU and descending time slot power consumption are as shown in Figure 5, in ascending time slot and descending time slot, also include basic power consumption, the basic power consumption embodiment of the present invention is discussed no longer in detail at this.As shown in Figure 5, the power consumption of ascending time slot is comparatively large, and the power consumption of descending time slot is less, has lacked the power consumption of CFR module and DPD module generation, thus reduce RRU power consumption in descending time slot.But this kind of mode can introduce periodic power supply clutter interference.
With reference to Fig. 6, show the schematic diagram of control RRU power consumption in the embodiment of the present invention three.In Fig. 6, the ascending time slot corresponding A DC interface of RRU, carrier extract module, DDC module and uplink time delay buffer module; The corresponding descending time delay buffer module of descending time slot, DUC module, carrier wave merge module, data source handover module, CFR module, DPD module, output protection module and DAC interface; Also comprise configurable power control switch in RRU, this power control switch can send independent clock enable signal, data source switching signal to other modules, and to control the opening and closing of other modules, this configurable power control switch is connected with configuration interface; This RRU is connected by IR interface or CPRI and BBU.
Wherein, CFR module and DPD module are downlink dedicated module.CFR module is divided by the antenna number according to RRU, the CFR submodule of each antenna at least one cascade corresponding, the corresponding rank of descending CFR submodule of each cascade; DPD module is divided by the antenna number according to RRU, the DPD submodule of each antenna at least one cascade corresponding, the corresponding rank of DPD submodule of each cascade, and the CFR submodule of last rank is connected with the DPD submodule of first rank; The corresponding output protection module be connected with DPD is also divided by according to antenna number, the corresponding output protection module of each antenna, and DAC interface is also divided by according to antenna number, the corresponding DAC interface of each antenna.DUC module is divided into multiple DUC submodule by the variable number according to RRU, the corresponding DUC submodule of each carrier wave; Descending time delay buffer module is divided into multiple descending time delay buffer sublayer module by the variable number according to described RRU, the corresponding descending time delay buffer sublayer module of each carrier wave; DDC module is divided into multiple DDC submodule by the variable number according to described RRU, the corresponding DDC submodule of each carrier wave; Uplink time delay buffer module is divided into multiple uplink time delay buffer sublayer module by the variable number according to described RRU, the corresponding uplink time delay buffer sublayer module of each carrier wave.
Be described for n antenna, a m carrier wave in this Fig. 6, wherein antenna 1CFR1, antenna 1CFR2, antenna 1CFR3 ..., antenna n CFR1, antenna n CFR2, antenna n CFR3 be CFR submodule corresponding to antenna; Antenna 1DPD1, antenna 1DPD2 ..., antenna n DPD1, antenna n DPD2 be DPD submodule corresponding to antenna; Antenna 1 output protection ..., antenna n output protection is output protection module corresponding to antenna; Antenna 1DAC interface ..., antenna n DAC interface is output protection module corresponding to antenna; Carrier wave 1DDC ..., carrier wave m DDC is DDC submodule corresponding to carrier wave; Carrier wave 1 uplink time delay buffering ..., carrier wave m uplink time delay buffering be uplink time delay buffer sublayer module corresponding to carrier wave; Carrier wave 1DUC ..., carrier wave m DUC is DUC submodule corresponding to carrier wave; The descending time delay buffering of carrier wave 1 ..., carrier wave m descending time delay buffering be descending time delay buffer sublayer module corresponding to carrier wave.
The course of work based on above-mentioned Fig. 6 is as follows:
When 1, being switched to ascending time slot, antenna receives RF (Radio Frequency, radio frequency) signal and, through analog channel process, becomes intermediate frequency or zero intermediate frequency signals, by the conversion of ADC interface, enters FPGA process, performs carrier extract process.
It should be noted that, when arriving the first Preset Time after being switched to ascending time slot, data source is switched to default internal data source, according to the first prefixed time interval, for each antenna according to the direction from DPD2 to CFR1, each at least one downlink dedicated submodule of closedown, until close whole downlink dedicated submodule, after Close All downlink dedicated submodule, data source is switched to BBU data source.When arriving the second Preset Time after being switched to ascending time slot, data source is switched to default internal data source, according to the second prefixed time interval, for each antenna according to the direction from CFR1 to DPD2, at least one in each unlatching downlink dedicated submodule, until open whole downlink dedicated submodule.Due to when ascending time slot, downlink data is actual should be complete zero, if therefore use internal data source, then at DAC interface, needs up time data directly to reset, and avoids the actual output of input signal impact of this internal data source.
2, in carrier extract process, do frequency spectrum shift according to different carrier frequency point DDS (Direct DigitalSynthesizer, Direct Digital Synthesizer), moved to zero-frequency, then do DDC process.Before carrying out DDC process, first determine the carrier wave that practical business takies, then open the DDC submodule that these carrier waves are corresponding, and close the DUC submodule opened.
3, after DDC process, then uplink time delay buffered is carried out.Before carrying out uplink time delay buffered, first open uplink time delay buffer sublayer module corresponding to the carrier wave that takies of practical business, and close the descending time delay buffer sublayer module of having opened.
4, the data through uplink time delay buffered are sent to BBU by IR or CPRI interface.
When 5, being switched to descending time slot, the data sent by IR or CPRI interface BBU.
6, data enter descending time delay buffer module and carry out descending time delay buffered.Before carrying out descending time delay buffered, first open descending time delay buffer sublayer module corresponding to the carrier wave that takies of practical business, and close the uplink time delay buffer sublayer module of having opened.
7, the data after descending time delay buffered enter DUC module and carry out DUC process.Before carrying out DUC process, first open DUC submodule corresponding to the carrier wave that takies of practical business, and close the DDC submodule opened.
8, carrier wave merging treatment is carried out to the data after DUC process, and carry out CFR process through the CFR submodule that data source handover module enters each antenna corresponding, through antenna 1CFR1 ..., antenna n CFR1, antenna 1CFR1 ..., antenna n CFR1, antenna 1CFR2 ..., antenna n CFR2, antenna 1CFR3 ..., the DPD submodule that enters each antenna corresponding after antenna n CFR3 process carries out DPD process.
9, through antenna 1DPD1 ..., antenna n DPD1, antenna 1DPD2 ..., enter output protection module corresponding separately after antenna n DPD2 process and carry out output protection process.
10, through antenna 1 output protection ..., enter DAC interface corresponding separately after the process of antenna n output protection, by antenna 1DAC interface ..., antenna n DAC interface conversion after, go out through antenna transmission.
In upper figure, uplink and downlink timeslot assignment information, carrier configuration information that configurable control switch module configures according to higher-layer software modules, in conjunction with the 10ms header signal that base station is sent here, export each independent clock energy signal and data source switching signal.
Controlled module divides two classes, before merging with carrier wave/be extracted as boundary:
A class is before the module that up-downgoing symmetry has, and comprise up-downgoing delay buffers and DUC/DDC, these module resources are equal, just data flow is different, directly can switch according to up-downgoing switch, and according to actual carrier configuring condition, some module can be closed for a long time.These modules are divided into multiple parallel separate unit by carrier wave.This part power consumption belongs to basic power consumption, even if do not control, also can not cause power supply clutter interference, but after controlling, can reduce overall power, green energy conservation.
A class is below exactly this kind of pure downstream module of CFR, DPD.According to the difference of antenna, cascade progression after carrier wave merges, CFR, DPD are divided into the independent sub-modules of multiple parallel, serial, form a gating matrix, each module is exactly a node in matrix, power control switch, according to actual conditions, dynamically produces clock switch signal.The submodule of each control may diminish to one, also can severally control together.Because data are one-way flow, in order to ensure the input validity of rear class submodule, the clock enable signal of prime first opens rear closedown than rear class.
In the embodiment of the present invention, by the clock control pin of switch corresponding module, just can reach the object of dynamic adjustments power consumption, industry control switch is a configurable module, its input is except comprising carrier configuration information, uplink and downlink timeslot proportioning, the switch gap of each module can also be configured, sequentially, simultaneously control number, and then the steep on adjustment slope.Clock control is realized by clock driver circuit, BUFG (global clock buffer) in the FPGA of such as Xilinx (match SEL) and BUFH (horizontal clock buffer) unit, it carries enable signal, just can the clock of switch respective modules by controlling enable signal, and the signal path automatic analysis between each clock zone, do not need special processing.
According to the difference of antenna, cascade progression, CFR, DPD are divided into the independent sub-modules of multiple parallel, serial, each submodule resource, power consumption are substantially identical.Be in ascending time slot during stepped change, at this time normal downlink data is 0, and upset, can not reach the requirement of power gradual change.Have two ways, method one directly receives CFR entrance up input, and two is input internal data sources (stochastic source), recommend method two, because ADC sample magnitude is very little when switching time slot, and normal downlink data is had any different.When opening clock, first open prime submodule, then open rear class submodule; When closing clock, first close rear class submodule, then close prime submodule.Submodule in corresponding diagram 6 divides, and opening sequence is CFR1 → CFR2 → CFR3 → DPD1 → DPD2, and closing sequence is DPD2 → DPD1 → CFR3 → CFR2 → CFR1.Reason must ensure to input the upset of data, if prime first pass, data are by constant for value when remaining last upset.
Consider actual use carrier wave also along with traffic carrying capacity change, relative to downlink dedicated module, this is a gradual process, can not introduce power supply spuious, but reduces basic power consumption by switch.By carrier wave, up-downgoing time delay buffering, DUC, DDC are divided into multiple parallel separate unit, its mutual exclusion switch, resource equity, open and close it according to the actual carrier wave that takies, when carrier occupancy number is constant, power consumption can think constant.
For Fig. 6, such as the power consumption control of each submodule is within 200mw, and the time interval changes once at more than 20us, and the change of power consumption of its RRU as shown in Figure 7, in ascending time slot and descending time slot, also include basic power consumption, the basic power consumption embodiment of the present invention is discussed no longer in detail at this.As shown in Figure 7, changed power is changed into gradual by sudden change, power supply clutter interference reduces greatly, and its clock clutter interference introduced also reduces greatly, by adjusting phase place and the duty ratio of each module clock enable signal, finally clock clutter interference can be controlled in tolerance interval.The embodiment of the present invention can realize saving energy and reduce the cost, cost-saving, and compatible with single antenna and multiple antennas, realize comprehensively, be convenient to promote.It should be noted that, although in the figure 7 ascending time slot, descending time slot and transient process (transition 1, transition 2 ..., transition 8) time roughly the same, but in actual applications, ascending time slot and descending time slot are main, the time of transient process is shorter, and transit time also belongs to ascending time slot.Just in order to more clearly describe the process of transition in Fig. 7, Cai so increased the time of transient process, but this can not as the restriction to settling time in practical application.
For aforesaid each embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not by the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and involved action and module might not be that the present invention is necessary.
Embodiment four:
In the embodiment of the present invention, RRU comprises only in the downlink dedicated module of descending time slot application, and described downlink dedicated module is divided into multiple downlink dedicated submodule in advance, and each downlink dedicated submodule is controlled separately.
With reference to Fig. 8, show the structured flowchart of the power consumption control apparatus of a kind of RRU of the embodiment of the present invention four.This device can comprise with lower module:
First handover module 801, during for arriving the first Preset Time after being switched to ascending time slot, provides the data source of data to be switched to default internal data source by for described downlink dedicated submodule;
Closing module 802, for closing at least one in described downlink dedicated submodule according to the first prefixed time interval at every turn, until close whole downlink dedicated submodule;
Second handover module 803, for after Close All downlink dedicated submodule, provides the data source of data to be switched to Base Band Unit BBU data source by for described downlink dedicated submodule;
Described first handover module, time also for arriving the second Preset Time after being switched to ascending time slot, provides the data source of data to be switched to default internal data source by for described downlink dedicated submodule;
Opening module 804, for opening at least one in described downlink dedicated submodule according to the second prefixed time interval at every turn, until open whole downlink dedicated submodule.
In the embodiment of the present invention, when described first Preset Time is preferably set to initially be switched to ascending time slot, described second Preset Time is preferably set to be switched to the time after ascending time slot between 1/2nd time slot to four/tri-time slots.
In one preferred embodiment of the invention, described downlink dedicated module is divided by the antenna number according to described RRU, the downlink dedicated submodule of each antenna at least one cascade corresponding, the corresponding rank of downlink dedicated submodule of each cascade.Described closing module, specifically for for downlink dedicated submodule corresponding to each antenna, according to the order being clipped to first rank from last grade, closes at least one in described downlink dedicated submodule according to the first prefixed time interval at every turn.Described opening module, specifically for for downlink dedicated submodule corresponding to each antenna, according to the order being clipped to last rank from first level, opens at least one in described downlink dedicated submodule according to the second prefixed time interval at every turn.
In one preferred embodiment of the invention, described downlink dedicated module comprises peak factor reduction CFR module and digital pre-distortion DPD module; Described CFR module is divided by the antenna number according to RRU, the CFR submodule of each antenna at least one cascade corresponding, the corresponding rank of descending CFR submodule of each cascade; Described DPD module is divided by the antenna number according to RRU, the DPD submodule of each antenna at least one cascade corresponding, the corresponding rank of DPD submodule of each cascade; The CFR submodule of last rank is connected with the DPD submodule of first rank.
In one preferred embodiment of the invention, described RRU also comprises Digital Up Convert DUC module, descending time delay buffer module, Digital Down Convert DDC module and uplink time delay buffer module; Described DUC module is divided into multiple DUC submodule according to the variable number of described RRU in advance, the corresponding DUC submodule of each carrier wave; Described descending time delay buffer module is divided into multiple descending time delay buffer sublayer module according to the variable number of described RRU in advance, the corresponding descending time delay buffer sublayer module of each carrier wave; Described DDC module is divided into multiple DDC submodule according to the variable number of described RRU in advance, the corresponding DDC submodule of each carrier wave; Described uplink time delay buffer module is divided into multiple uplink time delay buffer sublayer module according to the variable number of described RRU in advance, the corresponding uplink time delay buffer sublayer module of each carrier wave;
The power consumption control apparatus of described RRU also comprises:
Control module, for after being switched to ascending time slot, determines the carrier wave that current business takies, and the DDC submodule that described in opening, the carrier wave that takies is corresponding and uplink time delay buffer sublayer module; And, after being switched to descending time slot, determine the carrier wave that current business takies, and the DUC submodule that described in opening, the carrier wave that takies is corresponding and descending time delay buffer sublayer module.
Be multiple downlink dedicated submodules by downlink dedicated Module Division in advance in the embodiment of the present invention, each downlink dedicated submodule is controlled separately.When arriving the first Preset Time after being switched to ascending time slot, the data source of data is provided to be switched to default internal data source by for downlink dedicated submodule; Close at least one in downlink dedicated submodule, until close whole downlink dedicated submodule according to the first prefixed time interval at every turn; After Close All downlink dedicated submodule, be switched to Base Band Unit BBU data source by providing the data source of data for downlink dedicated submodule; When arriving the second Preset Time after being switched to ascending time slot, the data source of data is provided to be switched to default internal data source by for downlink dedicated submodule; Open at least one in downlink dedicated submodule, until open whole downlink dedicated submodule according to the second prefixed time interval at every turn.Therefore the embodiment of the present invention is by controlling each downlink dedicated submodule separately, successively close or open downlink dedicated submodule, thus the change of power consumption is changed into gradual by sudden change, therefore on the basis reducing RRU power consumption, also greatly reduce periodic power supply clutter interference, finally clock clutter interference is controlled in tolerance interval.
For device embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.
The present invention can describe in the general context of computer executable instructions, such as program module.Usually, program module comprises the routine, program, object, assembly, data structure etc. that perform particular task or realize particular abstract data type.Also can put into practice the present invention in a distributed computing environment, in these distributed computing environment (DCE), be executed the task by the remote processing devices be connected by communication network.In a distributed computing environment, program module can be arranged in the local and remote computer-readable storage medium comprising memory device.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, commodity or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, commodity or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, commodity or the equipment comprising described key element and also there is other identical element.
Above to power consumption control method and the device of RF remote unit RRU provided by the present invention, be described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (14)

1. the power consumption control method of a RF remote unit RRU, it is characterized in that, described RRU comprises only in the downlink dedicated module of descending time slot application, and described downlink dedicated module is divided into multiple downlink dedicated submodule in advance, and each downlink dedicated submodule is controlled separately;
Described method comprises:
When arriving the first Preset Time after being switched to ascending time slot, the data source of data is provided to be switched to default internal data source by for described downlink dedicated submodule;
Close at least one in described downlink dedicated submodule, until close whole downlink dedicated submodule according to the first prefixed time interval at every turn;
After Close All downlink dedicated submodule, the data source of data is provided to be switched to Base Band Unit BBU data source by for described downlink dedicated submodule;
When arriving the second Preset Time after being switched to ascending time slot, the data source of data is provided to be switched to default internal data source by for described downlink dedicated submodule;
Open at least one in described downlink dedicated submodule, until open whole downlink dedicated submodule according to the second prefixed time interval at every turn.
2. method according to claim 1, it is characterized in that, described downlink dedicated module is divided by the antenna number according to described RRU, the downlink dedicated submodule of each antenna at least one cascade corresponding, the corresponding rank of downlink dedicated submodule of each cascade.
3. method according to claim 2, is characterized in that, the described step of at least one of at every turn closing in described downlink dedicated submodule according to the first prefixed time interval comprises:
For the downlink dedicated submodule that each antenna is corresponding, according to the order being clipped to first rank from last grade, close at least one in described downlink dedicated submodule according to the first prefixed time interval at every turn.
4. method according to claim 2, is characterized in that, the described step of at least one of at every turn opening in described downlink dedicated submodule according to the second prefixed time interval comprises:
For the downlink dedicated submodule that each antenna is corresponding, according to the order being clipped to last rank from first level, open at least one in described downlink dedicated submodule according to the second prefixed time interval at every turn.
5. the method according to claim 1-4 any one, is characterized in that, described downlink dedicated module comprises peak factor and cuts down CFR module and digital pre-distortion DPD module; Described CFR module is divided by the antenna number according to RRU, the CFR submodule of each antenna at least one cascade corresponding, the corresponding rank of descending CFR submodule of each cascade; Described DPD module is divided by the antenna number according to RRU, the DPD submodule of each antenna at least one cascade corresponding, the corresponding rank of DPD submodule of each cascade; The CFR submodule of last rank is connected with the DPD submodule of first rank.
6. method according to claim 1, is characterized in that, when described first Preset Time is for being initially switched to ascending time slot, described second Preset Time is for being switched to the time after ascending time slot between 1/2nd time slot to four/tri-time slots.
7. method according to claim 1, is characterized in that, described RRU also comprises Digital Up Convert DUC module, descending time delay buffer module, Digital Down Convert DDC module and uplink time delay buffer module; Described DUC module is divided into multiple DUC submodule according to the variable number of described RRU in advance, the corresponding DUC submodule of each carrier wave; Described descending time delay buffer module is divided into multiple descending time delay buffer sublayer module according to the variable number of described RRU in advance, the corresponding descending time delay buffer sublayer module of each carrier wave; Described DDC module is divided into multiple DDC submodule according to the variable number of described RRU in advance, the corresponding DDC submodule of each carrier wave; Described uplink time delay buffer module is divided into multiple uplink time delay buffer sublayer module according to the variable number of described RRU in advance, the corresponding uplink time delay buffer sublayer module of each carrier wave;
Described method also comprises:
After being switched to ascending time slot, determine the carrier wave that current business takies, and the DDC submodule that described in opening, the carrier wave that takies is corresponding and uplink time delay buffer sublayer module;
After being switched to descending time slot, determine the carrier wave that current business takies, and the DUC submodule that described in opening, the carrier wave that takies is corresponding and descending time delay buffer sublayer module.
8. the power consumption control apparatus of a RF remote unit RRU, it is characterized in that, described RRU comprises only in the downlink dedicated module of descending time slot application, and described downlink dedicated module is divided into multiple downlink dedicated submodule in advance, and each downlink dedicated submodule is controlled separately;
Described device comprises:
First handover module, during for arriving the first Preset Time after being switched to ascending time slot, provides the data source of data to be switched to default internal data source by for described downlink dedicated submodule;
Closing module, for closing at least one in described downlink dedicated submodule according to the first prefixed time interval at every turn, until close whole downlink dedicated submodule;
Second handover module, for after Close All downlink dedicated submodule, provides the data source of data to be switched to Base Band Unit BBU data source by for described downlink dedicated submodule;
Described first handover module, time also for arriving the second Preset Time after being switched to ascending time slot, provides the data source of data to be switched to default internal data source by for described downlink dedicated submodule;
Opening module, for opening at least one in described downlink dedicated submodule according to the second prefixed time interval at every turn, until open whole downlink dedicated submodule.
9. device according to claim 8, it is characterized in that, described downlink dedicated module is divided by the antenna number according to described RRU, the downlink dedicated submodule of each antenna at least one cascade corresponding, the corresponding rank of downlink dedicated submodule of each cascade.
10. device according to claim 9, it is characterized in that, described closing module, specifically for for downlink dedicated submodule corresponding to each antenna, according to the order being clipped to first rank from last grade, close at least one in described downlink dedicated submodule according to the first prefixed time interval at every turn.
11. devices according to claim 9, it is characterized in that, described opening module, specifically for for downlink dedicated submodule corresponding to each antenna, according to the order being clipped to last rank from first level, open at least one in described downlink dedicated submodule according to the second prefixed time interval at every turn.
12. devices according to Claim 8 described in-11 any one, is characterized in that, described downlink dedicated module comprises peak factor and cuts down CFR module and digital pre-distortion DPD module; Described CFR module is divided by the antenna number according to RRU, the CFR submodule of each antenna at least one cascade corresponding, the corresponding rank of descending CFR submodule of each cascade; Described DPD module is divided by the antenna number according to RRU, the DPD submodule of each antenna at least one cascade corresponding, the corresponding rank of DPD submodule of each cascade; The CFR submodule of last rank is connected with the DPD submodule of first rank.
13. devices according to claim 8, is characterized in that, when described first Preset Time is for being initially switched to ascending time slot, described second Preset Time is for being switched to the time after ascending time slot between 1/2nd time slot to four/tri-time slots.
14. devices according to claim 8, is characterized in that, described RRU also comprises Digital Up Convert DUC module, descending time delay buffer module, Digital Down Convert DDC module and uplink time delay buffer module; Described DUC module is divided into multiple DUC submodule according to the variable number of described RRU in advance, the corresponding DUC submodule of each carrier wave; Described descending time delay buffer module is divided into multiple descending time delay buffer sublayer module according to the variable number of described RRU in advance, the corresponding descending time delay buffer sublayer module of each carrier wave; Described DDC module is divided into multiple DDC submodule according to the variable number of described RRU in advance, the corresponding DDC submodule of each carrier wave; Described uplink time delay buffer module is divided into multiple uplink time delay buffer sublayer module according to the variable number of described RRU in advance, the corresponding uplink time delay buffer sublayer module of each carrier wave;
Described device also comprises:
Control module, for after being switched to ascending time slot, determines the carrier wave that current business takies, and the DDC submodule that described in opening, the carrier wave that takies is corresponding and uplink time delay buffer sublayer module; And, after being switched to descending time slot, determine the carrier wave that current business takies, and the DUC submodule that described in opening, the carrier wave that takies is corresponding and descending time delay buffer sublayer module.
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CN104918275A (en) * 2015-06-26 2015-09-16 大唐移动通信设备有限公司 RRU adaptive power adjustment method and device thereof
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