CN101399588B - Base station system, baseband unit and processing method and device for base band signal - Google Patents
Base station system, baseband unit and processing method and device for base band signal Download PDFInfo
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Abstract
The invention discloses a base station system which comprises a baseband unit and radio frequency remote units. The baseband unit is provided with an aggregating unit, a merging unit and a processing unit. The aggregating unit is used for acquiring baseband signals from multiple radio frequency remote units; the merging unit is used for merging the baseband signals of multiple predetermined radio frequency remote units according to the identification information of the multiple predetermined radio frequency remote units; and the processing unit is used for processing the merged baseband signals. Furthermore, the invention also discloses a baseband unit, a processing method of the baseband signals and a device thereof. The baseband signals of the multiple predetermined radio frequency remote units are merged into a signal such that the multiple predetermined radio frequency remote units are logically regarded as a logic entity by a high layer, thus realizing the use of the multiple predetermined radio frequency remote units as a logic cell, expanding the effective coverage area of the logic cell, and further reducing the frequency of the cell reselection and the cell switching.
Description
Technical field
The present invention relates to station technology, especially relate to processing method and the device of a kind of base station system, Base Band Unit, baseband signal.
Background technology
Development along with technology, many users often need to communicate at rapid (such as bullet train), because the effective coverage range limited (being generally 1～2 km) of a residential quarter in the present base station system, and fast (the existing bullet train of vehicles translational speed, the speed of service has approached or has surpassed 100 meter per seconds), therefore under the environment of high-speed mobile, user communication device is with frequent occurrence cell reselection and switching, the cell reselection of frequent occurrence and switch and will badly influence user's signal of communication quality, and may cause the consequence such as conversation loss.Therefore, the effective coverage range of each residential quarter becomes the key factor of restriction high-speed mobile user communication quality.
For a communication system, the coverage of a base station is mainly determined by following factor: the receiving sensitivity of transmitter transmitting power, receiver, wireless propagation environment, antenna performance etc.The index of these aspects has a rational scope in Realization of Product, exceed outside the zone of reasonableness if expectation covers, and realizes by the improvement of product itself with regard to being difficult to.
In recent years, a kind of new architecture of base station has appearred in the base station product of radio communication, this architecture of base station is by Base Band Unit (Base Band Unit, BBU) and RF remote unit (Radio Remote Unit, RRU) form, referring to Fig. 1, wherein, finish the base station to the processing capacity of baseband signal by the BBU as base station body, specifically comprise: the functions such as the channel coding/decoding of data, modulation /demodulation, input, and finish signal interactive function with upper control node (such as radio network controller); RF remote unit RRU mainly comprises transceiver module, be used for finishing the conversion between radiofrequency signal and the baseband signal, the signal that namely sends for needs is finished the conversion from the baseband signal to the radiofrequency signal, finishes conversion from the radiofrequency signal to the baseband signal for the signal that receives.In base station system, RRU and BBU be independently installation, separated separately, is connected by optical interface, forms distributed base station.BBU can connect a plurality of RRU by optical fiber in the situation that capacity allows, each RRU uses as logic district independently, for the zone of certain limit provides wireless service.
Here need to prove, although on physical structure a plurality of RRU to carry out signal by same BBU and upper layer network together mutual, logically, the signal of each RRU independently carries out as one road signal and upper layer network alternately.
Existing BBU and RRU base station system, the baseband signal of a plurality of RRU is focused on a BBU by optical fiber to be focused on, the floor space of base station, the construction that has reduced equipment and maintenance cost have been saved, and be conducive to flexible configuration to base station resource, therefore in mobile communications network, be widely used.
But the effective coverage range of a logic district is limited in the base station system that existing BBU and RRU form, and also is 1～2 km, so the same limited problem of subsistence logic residential quarter effective coverage range.
Summary of the invention
The object of the present invention is to provide processing method and the device of a kind of base station system, Base Band Unit, baseband signal, can enlarge the scope that a logic district can cover, the frequency that cell reselection and switching occur when reducing high-speed mobile.
For addressing the above problem, the invention provides a kind of base station system, this system comprises Base Band Unit and RF remote unit, has the unit of converging, merge cells and processing unit on the described Base Band Unit, wherein,
Converge the unit, be used for obtaining the baseband signal that comes from a plurality of RF remote units;
Merge cells is used for the identifying information according to predetermined a plurality of RF remote units, and the baseband signal of described predetermined a plurality of RF remote units is merged;
Processing unit, the baseband signal after being used for being combined is processed.
Preferably, described merge cells comprises: identifying information obtains subelement and merges performance element, wherein,
Described identifying information obtains the identifying information that subelement is used for obtaining from local operation maintenance terminal or operation maintenance center predetermined a plurality of RF remote units;
Described merging performance element obtains subelement with identifying information and links to each other, and is used for the baseband signal merging of will be described predetermined a plurality of RF remote units.
Preferably, the identifying information of described predetermined a plurality of RF remote units is the identifying information of a plurality of RF remote units of merging of signal demand.
Preferably, described merge cells carries out the mode that baseband signal merges and is: high specific merging or equal gain combining or select to merge.
The present invention also provides a kind of processing unit of baseband signal, and this processing unit comprises: converge unit, merge cells and processing unit, wherein,
The described unit that converges is used for obtaining the baseband signal that comes from a plurality of RF remote units;
Described merge cells is used for the identifying information according to predetermined a plurality of RF remote units, and the baseband signal of described predetermined a plurality of RF remote units is merged;
Baseband signal after described processing unit is used for being combined is processed.
Preferably, described merge cells comprises: identifying information obtains subelement and merges performance element, wherein,
Described identifying information obtains the identifying information that subelement is used for obtaining from local operation maintenance terminal or operation maintenance center predetermined a plurality of RF remote units;
Described merging performance element obtains subelement with identifying information and links to each other, and is used for the baseband signal merging of will be described predetermined a plurality of RF remote units.
Preferably, the identifying information of described predetermined a plurality of RF remote units is the identifying information of a plurality of RF remote units of merging of signal demand.
Preferably, described merge cells carries out the mode that baseband signal merges and is: high specific merging or equal gain combining or select to merge.
The present invention also provides a kind of Base Band Unit, and this unit comprises: converge unit, merge cells and processing unit, wherein,
The described unit that converges is used for obtaining the baseband signal that comes from a plurality of RF remote units;
Described merge cells is used for the identifying information according to predetermined a plurality of RF remote units, and the baseband signal of described predetermined a plurality of RF remote units is merged;
Baseband signal after described processing unit is used for being combined is processed.
Preferably, described merge cells comprises: identifying information obtains subelement and merges performance element, wherein,
Described identifying information obtains the identifying information that subelement is used for obtaining from local operation maintenance terminal or operation maintenance center predetermined a plurality of RF remote units;
Described merging performance element obtains subelement with identifying information and links to each other, and is used for the baseband signal merging of will be described predetermined a plurality of RF remote units.
Preferably, the identifying information of described predetermined a plurality of RF remote units is the identifying information of a plurality of RF remote units of merging of signal demand.
Preferably, described merge cells carries out the mode that baseband signal merges and is: high specific merging or equal gain combining or select to merge.
In addition, the present invention also provides a kind of processing method of baseband signal, comprising:
Obtain the baseband signal that comes from a plurality of RF remote units;
According to the identifying information of predetermined a plurality of RF remote units, the baseband signal of described predetermined a plurality of RF remote units is merged;
Baseband signal after being combined is processed.
Preferably, obtain the identifying information of predetermined a plurality of RF remote units by local operation maintenance terminal or operation maintenance center.
Preferably, the identifying information of described predetermined a plurality of RF remote units is the identifying information of a plurality of RF remote units of merging of signal demand.
Preferably, the mode that merges the baseband signal of predetermined a plurality of RF remote units is: high specific merging or equal gain combining or select to merge.
Compare with prior art, the present invention has the following advantages:
Base station system provided by the invention, merge cells on its Base Band Unit BBU is according to the identifying information of predetermined a plurality of RRU, the baseband signal of described predetermined a plurality of RRU is merged into one road signal, thereby predetermined a plurality of RRU logically are used as a logic entity by high level, a plurality of RRU that realization will be scheduled to use as a logic district, enlarged the effective coverage range of a logic district, and then reduced cell reselection and switched the frequency that occurs.
Description of drawings
Fig. 1 is the networking schematic diagram of the base station system of existing BBU and RRU composition;
Fig. 2 is the networking schematic diagram of a BBU and a plurality of RRU in the base station system provided by the invention;
Fig. 3 is the connection diagram of base station system provided by the invention and operation maintenance center;
Cell extension figure when Fig. 4 does linear the covering for utilization the present invention to high-speed railway;
Fig. 5 is the flow chart of the processing method of a kind of baseband signal provided by the invention;
Fig. 6 is the structural representation of the processing unit of a kind of baseband signal provided by the invention.
Embodiment
In order to make those skilled in the art person understand better the present invention program, the present invention is described in further detail below in conjunction with drawings and embodiments.
Base station system provided by the invention, formed by BBU and RRU, merge into a roadbed band signal by the baseband signal that a plurality of RRU that will be scheduled to transmit, so when should predetermined a plurality of RRU and high level carry out signal when mutual, because the signal after only existing a tunnel to merge, so that control from high level, high-rise just and entity in that to carry out signal mutual, should logically be used as a logic entity by high level by predetermined a plurality of RRU, so the area of coverage that should be scheduled to a plurality of RRU becomes the area of coverage of a logic entity, predetermined a plurality of RRU use (namely realizing the structure configuration to a logic district) as a logic district, thereby enlarged scope that logic district can cover in the base station system, reduced the occurrence frequency of cell reselection and switching.
A kind of base station system provided by the invention comprises at least one Base Band Unit BBU 21 and at least one RF remote unit RRU 22, and wherein, RF remote unit RRU is used for realizing the conversion of radiofrequency signal and baseband signal; BBU as base station body finishes the base station to the processing capacity of baseband signal, specifically comprise the function such as channel coding/decoding, modulation /demodulation, input of data, and finish with the signal of upper control node (such as radio network controller, base station controller) mutual.
Referring to Fig. 2, have the unit of converging 211, merge cells 212 and processing unit 213 at Base Band Unit BBU 21.
Wherein, converge unit 211, be used for obtaining the baseband signal that comes from a plurality of RRU;
As stated in the Background Art, RF remote unit RRU comprises transceiver module, is used for finishing the conversion between radiofrequency signal and the baseband signal.
Merge cells 212 with converge unit 211 and be connected, be used for the identifying information according to predetermined a plurality of RRU, the baseband signal of described predetermined a plurality of RRU is merged.
The baseband signal of predetermined a plurality of RRU forms one road signal after merging.Need to prove that at this merging mode can adopt high specific merging, equal gain combining, selection merging etc. and other similar merge algorithm to merge, thereby makes the baseband signal of predetermined a plurality of RRU merge into one road signal.
Finish the base station to the processing capacity of baseband signal by processing unit 213, specifically comprise: the functions such as the channel coding/decoding of data, modulation /demodulation, input.
Merge cells 212 comprises that identifying information obtains subelement and merges performance element, described identifying information obtains the identifying information that subelement is used for obtaining from operation maintenance center (Operation Maintenance Centre, OMC) or local operation maintenance terminal predetermined a plurality of RRU; Described merging performance element obtains subelement with identifying information and links to each other, and is used for the baseband signal merging of will be described predetermined a plurality of RRU.Referring to Fig. 3, the identifying information on OMC and the BBU obtains subelement and carries out information interaction.
In the present invention, the identifying information of RRU can be arbitrarily can unique identification RRU information.The identifying information of predetermined a plurality of RRU is the identifying information of a plurality of RRU of merging of signal demand.
Here need to prove, needs for Operation and Maintenance, each RRU has oneself independently identifier, therefore, the present invention can send to BBU by the identifier that the OMC of operation maintenance center or local operation maintenance terminal are merged into the RRU (being predetermined a plurality of RRU that signal demand merges) of same logic district with needs, thereby the merge cells on the BBU can be according to the identifier that receives, and the baseband signal of the RRU that identifier is corresponding is merged into same road signal.Here, the identifier of RRU is the identifying information of RRU.
Based on as mentioned above, the present invention obtains the identifying information of predetermined a plurality of RRU from the OMC of operation maintenance center or local operation maintenance terminal, thereby realize the configuration of a logic district structure, thereby can adapt to fast the variation of communication requirement, greatly reduce and carry out the cost that the network optimization, maintenance and engineering adjustment are built.
In base station system provided by the invention, merge cells with converge the unit and be connected, according to the identifying information of predetermined a plurality of RRU, the baseband signal of described predetermined a plurality of RRU transmission is merged into a roadbed band signal.Because merge cells will be scheduled to the baseband signal of a plurality of RRU transmission and merge into one road signal, therefore, when these predetermined a plurality of RRU and high level carry out signal when mutual, because the signal after only existing a tunnel to merge, control at high level, high-rise just and logic entity in that to carry out signal mutual, thereby, should logically be considered as a logic entity by high level by predetermined a plurality of RRU, the area of coverage that then should be scheduled to a plurality of RRU becomes the area of coverage (i.e. the coverage of a logic district) of a logic entity, and predetermined a plurality of RRU use as a logic district.And in the base station system that existing BBU and RRU form, each RRU uses as a logic district, therefore in base station system provided by the invention, merge into one road signal by the baseband signal that will be scheduled to a plurality of RRU transmission, the coverage of a logic district is effectively expanded, thereby reduced cell reselection and switched the frequency that occurs.
The below illustrates technical scheme of the present invention on high-speed railway subscriber equipment is done the scene that wire covers.
When train is run at high speed on railway line, in order to reduce the occurrence frequency of cell reselection and switching, usually base station downline wire is distributed, form the present situation covering along railway, thereby maximally utilise the coverage of single subdistrict.
Referring to Fig. 4, have the directional transmitting antenna of both direction on each antenna transmission point, a plurality of transmitting antenna points are serially connected by optical fiber, and downline is linear distribution.Directional transmitting antenna of the corresponding connection in each RRU unit on the railway line, to carry out the sending and receiving of signal, the overlay area of each RRU unit is the overlay area of the directional transmitting antenna that is connected.The present invention can merge by the baseband signal of selecting three antenna transmissions to put corresponding six RRU, the baseband signal that is about to the corresponding RRU of predetermined six secondary directional transmitting antennas converges to BBU by optical fiber and merges, so when a user terminal carries out mobile communication in these six RRU overlay areas on high-speed railway, because BBU is merged into one road signal with the baseband signal of the corresponding RRU of this six secondary directional transmitting antenna, and will send to high level (such as network controller) after this road signal processing.Because merging process is finished by BBU at inside of base station, do not need the participation of high-rise control, therefore the number of RRU and structure are opaque for high-rise (network controller), network controller only need to carry out to the base station control of a logic district unit, and descending distribution and the up merging of a plurality of RRU signals are all finished by BBU.Like this in these six RRU overlay areas high-rise just and mutual at the distribution of carrying out resource and signal of logic entity, so these six RRU and corresponding BBU logically are considered as a logic entity, i.e. same logic district by high level.So the area of coverage of these six RRU becomes the area of coverage of a logic district, reached the invention effect that enlarges cell coverage area with six slave antennas.
The coverage of a residential quarter is generally the coverage of a RRU in the base station system that forms in view of existing BBU and RRU, so the present invention can expand as the coverage of a logic district six times of a cell coverage area in the base station system that existing BBU and RRU form.Therefore, when subscriber equipment communicates in a section of railway track, reduce the occurrence frequency of cell reselection and switching, thereby reduced the interrupted probability of communication service.
In actual applications, the concrete number of RRU that merges processing by BBU can be adjusted according to customer requirements and in conjunction with the disposal ability of BBU.
Certainly, technical scheme of the present invention is not only applicable on the high-speed railway subscriber equipment is done the scene that wire covers, and there is the scene of high-speed mobile subscriber equipment in other equally also to be applicable to highway etc.
Need to prove, when moving between adjacent two RRU in user communication device each logic district in base station system of the present invention, because do not need to carry out cell reselection and switching, do not switch band to carry out cell reselection and switching so do not need between adjacent two RRU to reserve, handing-over between adjacent two RRU seamlessly transits, thereby base station system provided by the invention can enlarge the effective coverage range of each RRU with respect to the base station system of existing BBU and RRU composition.
In sum, base station system provided by the invention, by the indication of the merge cells on the Base Band Unit according to the identifying information of predetermined a plurality of RRU, the baseband signal of predetermined a plurality of RRU is merged into same road signal, so should logically be used as a logic entity by high level by predetermined a plurality of RRU, predetermined a plurality of RRU use (namely realizing the structure configuration to a logic district) as a logic district, therefore, base station system by the present invention's raising, can enlarge scope that logic district can cover in the base station system, reduce the occurrence frequency of cell reselection and switching.
The base station system that the present invention adopts BBU and RRU to form is compared with the base station system that RRU forms with existing BBU, increased the merge cells of executive signal pooling function, baseband signal by a plurality of RRU that will be scheduled to is merged into one road signal, realization is expanded the scope that can cover of a logic district, need to prove at this, the algorithm that specifically carries out signal merging processing has: high specific merges, equal gain combining, select to merge and other similar merge algorithm, carrying out signal by merge algorithm merges, the baseband signal of a plurality of RRU is merged into one road signal, make signal can obtain diversity and merge gain.The present invention compares with the road mode of closing that present employing mixer carries out radiofrequency signal, both can obtain diversity gain, does not also have simultaneously the lifting that the end makes an uproar.
Please refer to Fig. 5, the flow chart for the processing method of a kind of baseband signal provided by the invention specifically may further comprise the steps:
Step S501: obtain the baseband signal that comes from a plurality of RRU;
As stated in the Background Art, RF remote unit RRU comprises transceiver module, is used for finishing the conversion between radiofrequency signal and the baseband signal.
Step S502: according to the identifying information of predetermined a plurality of RRU, the baseband signal of described predetermined a plurality of RRU is merged;
Certainly, the baseband signal of predetermined a plurality of RRU forms one road signal after merging.Need to prove that at this merging mode can adopt high specific merging, equal gain combining, selection merging etc. and other similar merge algorithm to merge, thereby makes the baseband signal of predetermined a plurality of RRU merge into one road signal.
In the present invention, the identifying information of RRU can be the information of any energy unique identification RRU.The identifying information of predetermined a plurality of RRU is the identifying information of a plurality of RRU of merging of signal demand.
In step S502, the identifying information of predetermined a plurality of RRU can obtain by local operation maintenance terminal or the OMC of operation maintenance center.Because the needs for Operation and Maintenance, each RRU has oneself independently identifier, therefore, can obtain from local operation maintenance terminal or operation maintenance center the identifier of a plurality of RRU (being a plurality of RRU that signal demand merges) that need to merge into same logic district, and the baseband signal of the RRU that identifier is corresponding is merged into same road signal.Here, the identifier of RRU is the identifying information of RRU.Certainly, the identifying information of RRU can also be the information that other can a RRU of unique identification.
Step S503: the baseband signal after being combined is processed.
Certainly, be by the device with base band signal process function (such as BBU) baseband signal to be processed.
Be understandable that, in the algorithm design and Realization of Product of reality, signal merges and the signal processing also can realize in a unified process, for example the space-time joint testing process in synchronous code division multiple access (TimeDivision-Synchronous Code Division Multiple Access, the TD-SCDMA) system of time-division just realized simultaneously signal merging, spread-spectrum signal despreading, disturb the function such as inhibition.
The present invention is based on the processing method of above-mentioned baseband signal, a kind of processing unit of baseband signal also is provided, referring to Fig. 6, the processing unit of this baseband signal comprises and converges unit 601, merge cells 602 and processing unit 603,
In the processing unit of this baseband signal, converge unit 601 and be used for obtaining the baseband signal that comes from a plurality of RRU;
As stated in the Background Art, RF remote unit RRU comprises transceiver module, is used for finishing the conversion between radiofrequency signal and the baseband signal.
Merge cells 602 with converge unit 601 and be connected, be used for the identifying information according to predetermined a plurality of RRU, the baseband signal that will come from described predetermined a plurality of RRU merges.
The baseband signal of predetermined a plurality of RRU forms one road signal after merging.
Finish the base station to the processing capacity of baseband signal by processing unit 603, specifically comprise: the functions such as the channel coding/decoding of data, modulation /demodulation, input.
In the present invention, the identifying information of RRU can be the information of any energy unique identification RRU.The identifying information of predetermined a plurality of RRU is the identifying information of a plurality of RRU of merging of signal demand.
Merge cells comprises that identifying information obtains subelement 6021 and merges performance element 6022, and described identifying information obtains the identifying information that subelement 6021 is used for obtaining from the OMC of operation maintenance center or local operation maintenance terminal predetermined a plurality of RRU; Described merging performance element 6022 obtains subelement with identifying information and links to each other, and is used for the baseband signal merging of will be described predetermined a plurality of RRU.
In the present invention, the identifying information of predetermined a plurality of RRU can obtain by the OMC of operation maintenance center or the local operation maintenance terminal of far-end.Because the needs for Operation and Maintenance, each RRU has oneself independently identifier, therefore, can obtain from the OMC of operation maintenance center or local operation maintenance terminal the identifier of a plurality of RRU (i.e. predetermined a plurality of RRU) that need to merge into same logic district, and the baseband signal of the RRU that identifier is corresponding is merged into same road signal.Here, the identifier of RRU is the identifying information of RRU.Certainly, the identifying information of RRU can also be the information that other can a RRU of unique identification.
The present invention also provides a kind of Base Band Unit BBU, processing unit as a kind of baseband signal, comprise also in BBU and converge unit, merge cells and processing unit that the effect of these three unit is identical with the aforementioned action principle that converges unit, merge cells and processing unit, does not repeat them here.
Although described the present invention by embodiment; those skilled in the art will know that; the present invention has many distortion and variation and does not break away from spirit of the present invention; wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention; the changes that any person skilled in the art can think of all should drop in protection scope of the present invention.
Claims (12)
1. base station system, this system comprises Base Band Unit and RF remote unit, it is characterized in that, has the unit of converging, merge cells and processing unit on the described Base Band Unit, wherein,
Converge the unit, be used for obtaining the baseband signal that comes from a plurality of RF remote units;
Merge cells, be used for the identifying information according to predetermined a plurality of RF remote units, the baseband signal of described predetermined a plurality of RF remote units is merged into a roadbed band signal, the mode that described merge cells carries out the baseband signal merging is: high specific merging or equal gain combining or selection merge, wherein, described identifying information is used for unique identification RF remote unit RRU;
Processing unit, the baseband signal after being used for being combined is processed.
2. the system as claimed in claim 1 is characterized in that, described merge cells comprises: identifying information obtains subelement and merges performance element, wherein,
Described identifying information obtains the identifying information that subelement is used for obtaining from local operation maintenance terminal or operation maintenance center predetermined a plurality of RF remote units;
Described merging performance element obtains subelement with identifying information and links to each other, and is used for the baseband signal merging of will be described predetermined a plurality of RF remote units.
3. system as claimed in claim 1 or 2 is characterized in that, the identifying information of described predetermined a plurality of RF remote units is the identifying information of a plurality of RF remote units of merging of signal demand.
4. the processing unit of a baseband signal is characterized in that, this processing unit comprises: converge unit, merge cells and processing unit, wherein,
The described unit that converges is used for obtaining the baseband signal that comes from a plurality of RF remote units;
Described merge cells is used for the identifying information according to predetermined a plurality of RF remote units, the baseband signal of described predetermined a plurality of RF remote units is merged into a roadbed band signal, the mode that described merge cells carries out the baseband signal merging is: high specific merging or equal gain combining or selection merge, wherein, described identifying information is used for unique identification RF remote unit RRU;
Baseband signal after described processing unit is used for being combined is processed.
5. device as claimed in claim 4 is characterized in that, described merge cells comprises: identifying information obtains subelement and merges performance element, wherein,
Described identifying information obtains the identifying information that subelement is used for obtaining from local operation maintenance terminal or operation maintenance center predetermined a plurality of RF remote units;
Described merging performance element obtains subelement with identifying information and links to each other, and is used for the baseband signal merging of will be described predetermined a plurality of RF remote units.
6. such as claim 4 or 5 described devices, it is characterized in that the identifying information of described predetermined a plurality of RF remote units is the identifying information of a plurality of RF remote units of merging of signal demand.
7. a Base Band Unit is characterized in that, this unit comprises: converge unit, merge cells and processing unit, wherein,
The described unit that converges is used for obtaining the baseband signal that comes from a plurality of RF remote units;
Described merge cells is used for the identifying information according to predetermined a plurality of RF remote units, the baseband signal of described predetermined a plurality of RF remote units is merged into a roadbed band signal, the mode that described merge cells carries out the baseband signal merging is: high specific merging or equal gain combining or selection merge, wherein, described identifying information is used for unique identification RF remote unit RRU;
Baseband signal after described processing unit is used for being combined is processed.
8. device as claimed in claim 7 is characterized in that, described merge cells comprises: identifying information obtains subelement and merges performance element, wherein,
Described identifying information obtains the identifying information that subelement is used for obtaining from local operation maintenance terminal or operation maintenance center predetermined a plurality of RF remote units;
Described merging performance element obtains subelement with identifying information and links to each other, and is used for the baseband signal merging of will be described predetermined a plurality of RF remote units.
9. such as claim 7 or 8 described devices, it is characterized in that the identifying information of described predetermined a plurality of RF remote units is the identifying information of a plurality of RF remote units of merging of signal demand.
10. the processing method of a baseband signal is characterized in that, comprising:
Obtain the baseband signal that comes from a plurality of RF remote units;
Identifying information according to predetermined a plurality of RF remote units, the baseband signal of described predetermined a plurality of RF remote units is merged into a roadbed band signal, the mode that merges the baseband signal of predetermined a plurality of RF remote units is: high specific merging or equal gain combining or selection merge, wherein, described identifying information is used for unique identification RF remote unit RRU;
Baseband signal after being combined is processed.
11. method as claimed in claim 10 is characterized in that, obtains the identifying information of predetermined a plurality of RF remote units by local operation maintenance terminal or operation maintenance center.
12., it is characterized in that the identifying information of described predetermined a plurality of RF remote units is the identifying information of a plurality of RF remote units of merging of signal demand such as claim 10 or 11 described methods.
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| CN103109557A (en) * | 2012-09-13 | 2013-05-15 | 华为技术有限公司 | Data transmission method and device |
| CN103841582B (en) * | 2013-12-30 | 2017-11-21 | 上海华为技术有限公司 | A kind of control method and device |
| CN104980382B (en) * | 2015-06-29 | 2018-10-30 | 上海华为技术有限公司 | A kind of data processing method and device of multiple RRU of cell altogether |
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