CN102946651A - Long term evolution (LTE) base station and base band resource exchanging method - Google Patents

Long term evolution (LTE) base station and base band resource exchanging method Download PDF

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CN102946651A
CN102946651A CN2012104887570A CN201210488757A CN102946651A CN 102946651 A CN102946651 A CN 102946651A CN 2012104887570 A CN2012104887570 A CN 2012104887570A CN 201210488757 A CN201210488757 A CN 201210488757A CN 102946651 A CN102946651 A CN 102946651A
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bbu
baseband processing
processing unit
main
control unit
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CN102946651B (en
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何梁
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CICT Mobile Communication Technology Co Ltd
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Beijing Northern Fiberhome Technologies Co Ltd
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Abstract

An embodiment of the invention discloses a long term evolution (LTE) base station and a base band resource exchanging method. The LTE base station is characterized by comprising a radio remote unit (RRU), at least two indoor base band processing units (BBUs) and an IR switch positioned outside the BBUs. The RRU is used for transmitting the received antenna data to the IR switch; the at least two BBUs include a main BBU and at least one auxiliary BBU subjected to the main BBU; a master control unit of the main BBU is connected with the IR switch and used for transmitting configuration commands to the IR switch; and the IR switch is positioned outside the BBUs and used for establishing paths enabling the received antenna data to flow to the BBUs according to the configuration commands of the main BBU and distributing the antenna data. By means of the method for exchanging the data outside the BBUs, exchange of the data among a plurality of BBUs can be achieved, and expansibility and flexibility of the LTE base station are greatly improved.

Description

A kind of LTE base station and a kind of base-band resource switching method
Technical field
The present invention relates to field, LTE base station, particularly relate to a kind of LTE base station and a kind of base-band resource switching method.
Background technology
In the wireless communication base station system, often adopt the technology of base band resource pool.Namely the mode of the data of a plurality of fan antennas with space switching, be assigned in a plurality of baseband processing units, the multi-to-multi that can accomplish like this baseband processing unit and antenna is corresponding, when certain baseband processing unit breaks down, crosspoint can be routed to antenna data in the normal baseband processing unit, guarantees that the function of whole base station is unlikely to paralysis.
What at present general LTE (Long Term Evolution) architecture of base station was many is the pattern of BBU (indoor baseband processing unit)+RRU (Remote Radio Unit), and as shown in Figure 1, BBU1 is by main control unit 2, and crosspoint 3 and baseband processing unit 4 form.Connect by the IR interface between BBU1 and the RRU5, above transmission of digital signals, comprise antenna data and maintenance command etc.
But some drawback of the composition of above BBU, this crosspoint can't be expanded by corresponding baseband processing unit, both in the time need to needing to increase baseband processing unit for the increase of operational environment or deal with data amount, because the hardware configuration of this crosspoint designs in advance, so can't expand.
For above-mentioned situation, another solution is that the collaborative data of carrying out of a plurality of BBU of access are processed, and is still same, and this crosspoint can't be realized the function of exchange of the data in the baseband processing unit between the different B BU.So that the autgmentability of LTE base station and flexibility are all not strong, greatly limited the development of LTE base station.
Summary of the invention
The embodiment of the invention provides a kind of LTE base station and a kind of base-band resource switching method, solves all not strong technical problems of the autgmentability of above-mentioned LTE base station and flexibility.
The embodiment of the invention discloses following technical scheme:
A kind of Long Term Evolution LTE base station is characterized in that, comprises radio frequency remote unit RRU, at least two indoor baseband processing unit BBU and an IR switch that is positioned at the BBU outside:
Described RRU is used for the antenna data that receives is sent to the IR switch;
Described at least two BBU comprise a main BBU and at least one belong to described main BBU from BBU:
Described main BBU comprises a main control unit and n baseband processing unit, and n is the natural number more than or equal to 1;
The main control unit of described main BBU links to each other with the IR switch, is used for sending configuration order to the IR switch;
The baseband processing unit of described main BBU is for the treatment of the antenna data that is assigned to self;
Describedly comprise a main control unit and n baseband processing unit from BBU, n is the natural number more than or equal to 1;
Described main control unit from BBU is for the operating state from BBU at monitoring place;
Described baseband processing unit from BBU is for the treatment of the antenna data that is assigned to self;
Described IR switch is positioned at the BBU outside, is used for setting up the path that the described antenna data that receives flows to the baseband processing unit of each BBU according to the configuration order of main BBU, and according to the baseband processing unit of described path allocation antenna data to each BBU.
Preferably, described main control unit from BBU links to each other with the main control unit of main BBU, also be used for sending maintenance request to the main control unit of described main BBU according to described operating state, described maintenance request comprises the address information of the baseband processing unit that needs are replaced and the information of the handled antenna data of this baseband processing unit;
Accordingly, the main control unit of described main BBU also is used for sending replace command to the IR switch according to the maintenance request that receives;
Described IR switch, also be used for flowing to according to replace command change antenna data the path of the baseband processing unit that described needs replace, and flow to the path that the described antenna data that needs the baseband processing unit replaced is set up the baseband processing unit that flows to any BBU except the described baseband processing unit that needs replacement for described.
Preferably, also comprise clock unit:
Described clock unit links to each other with the main control unit of each BBU outside BBU, is used for the synchronously clock frequency of each BBU.
Preferably, described main control unit from BBU sends maintenance request to the main control unit of main BBU by the Ethernet maintenance channel.
A kind of base-band resource switching method is applied to appeal in the described LTE of any one base station, comprises step:
The IR switch receives the antenna data that RRU sends;
The IR switch receives the configuration order that the main control unit among the main BBU sends;
The IR switch sets up according to the described configuration order that receives that antenna data flows to main BBU and from the path of the baseband processing unit of BBU;
The IR switch according to described path allocation antenna data to main BBU with from the baseband processing unit of BBU, so that described main BBU and the baseband processing unit from BBU are processed the antenna data that is assigned to and from the operating state from BBU at the main control unit monitoring place of BBU.
Preferably, also comprise:
Send maintenance request to the main control unit of main BBU from the main control unit of BBU according to described operating state, described maintenance request comprises the address information of the baseband processing unit that needs are replaced and the information of the handled antenna data of this baseband processing unit;
The main control unit of main BBU sends replace command to the IR switch according to the maintenance request that receives;
The IR switch flows to the path of the baseband processing unit that described needs replace according to the described replace command change antenna data that receives, and flows to the path that the described antenna data that needs the baseband processing unit replaced is set up the baseband processing unit that flows to the arbitrary BBU except the described baseband processing unit that needs replacement for described.
Preferably, also comprise:
Each BBU uses the clock frequency of same each BBU of external clock units synchronization.
Preferably, describedly send described maintenance request from BBU by the Ethernet maintenance channel.
As can be seen from the above-described embodiment, the present invention uses the method for carrying out exchanges data outside BBU, so that the exchanges data between a plurality of BBU is achieved, has reduced the cost of LTE base station, reduces power consumption, and has greatly improved autgmentability and the flexibility of LTE base station.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the architecture of base station figure of existing LTE base station;
Fig. 2 is the architecture of base station figure of a kind of LTE of the present invention base station;
Fig. 3 is another architecture of base station figure of a kind of LTE of the present invention base station;
Fig. 4 is another architecture of base station figure of a kind of LTE of the present invention base station;
Fig. 5 is another architecture of base station figure of a kind of LTE of the present invention base station;
Fig. 6 is another architecture of base station figure of a kind of LTE of the present invention base station;
Fig. 7 is the method flow diagram of a kind of base-band resource switching method of the present invention;
Fig. 8 is another method flow diagram of a kind of base-band resource switching method of the present invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
Embodiment one
See also Fig. 2, it is the architecture of base station figure of a kind of LTE of the present invention base station, and this base station comprises main BBU201, from BBU202, from BBU203, IR switch 204 and RRU205:
Described main BBU201 comprises a main control unit 206 and n baseband processing unit 207, and n is the natural number more than or equal to 1.
The main control unit 206 of described main BBU links to each other with IR switch 204, is used for sending configuration order to IR switch 204.
Here need to prove, here said main BBU does not refer in particular to some BBU, can be any one that connects among the BBU of IR switch, only need to load to the main control unit of this BBU corresponding control program and connect with the IR switch and can realize described function, that is to say, when main BBU in service breaks down, can Interim use be connected to other the BBU on the IR switch, it is loaded corresponding control program, and connect main control unit and the described IR switch of this BBU, just can recover the work of whole LTE base station.
The baseband processing unit 207 of described main BBU is for the treatment of the antenna data that is assigned to.
Describedly comprise a main control unit 208 and n baseband processing unit 209 from BBU202, n is the natural number more than or equal to 1.
Describedly comprise a main control unit 210 and n baseband processing unit 211 from BBU203, n is the natural number more than or equal to 1.
Although present embodiment has only drawn two from BBU, the present invention does not limit the number from BBU, can be the BBU of any number that can realize in theory.
Described main control unit 208 from BBU202 is used for monitoring from the operating state of BBU202.
Described baseband processing unit 209 from BBU202 is for the treatment of the antenna data that is assigned to.
Described main control unit 210 from BBU203 is used for monitoring from the operating state of BBU203.
Described baseband processing unit 211 from BBU203 is for the treatment of the antenna data that is assigned to.
Described IR switch 204 is positioned at the BBU outside, be used for setting up the path that the described antenna data that receives flows to the baseband processing unit of each BBU according to the configuration order of main BBU201, and according to the baseband processing unit of described path allocation antenna data to each BBU.
This IR switch is different from the crosspoint that is installed in BBU inside in the prior art, and the configuration order that the IR switch receives by the main control unit 206 from main BBU distributes the antenna data at RRU205 place to a plurality of BBU.
Described RRU205 is used for the antenna data that receives is sent to IR switch 204.
Here the number of RRU not being limited, can be one, also can be a plurality of.
Embodiment two
On the basis of embodiment one, see also Fig. 3, it is another architecture of base station figure of a kind of LTE of the present invention base station:
Described main control unit 208 from BBU links to each other with the main control unit 206 of main BBU, what also be used for the monitoring place sends maintenance request to the main control unit 206 of described main BBU from the operating state of BBU202 and according to described operating state, and described maintenance request comprises the address information of the baseband processing unit that needs are replaced and the information of the handled antenna data of this baseband processing unit.
Described main control unit 210 from BBU links to each other with the main control unit 206 of main BBU, what be used for the monitoring place sends maintenance request to the main control unit 206 of described main BBU from the operating state of BBU203 and according to described operating state, and described maintenance request comprises the address information of the baseband processing unit that needs are replaced and the information of the handled antenna data of this baseband processing unit.
Preferably, described main control unit 208 from BBU sends maintenance request to the main control unit 206 of main BBU by the Ethernet maintenance channel.
Preferably, described main control unit 210 from BBU sends maintenance request to the main control unit 206 of main BBU by the Ethernet maintenance channel.
Need to prove, two main control units from BBU of present embodiment are to be connected with the main control unit of main BBU respectively, can certainly be that the mode of connecting is connected with the main control unit of main BBU, as shown in Figure 4, link to each other with main control unit 208 from BBU from the main control unit 210 of BBU, link to each other from the main control unit 208 of BBU and the main control unit 206 of main BBU, this connected mode still can solve technical problem to be solved of the present invention, and the present invention does not limit to main BBU and from the connected mode between the BBU.
Accordingly, the main control unit 206 of described main BBU also is used for sending replace command to IR switch 204 according to the maintenance request that receives.
Described IR switch 204, also be used for flowing to according to replace command change antenna data the path of the baseband processing unit that described needs replace, and flow to the path that the described antenna data that needs the baseband processing unit replaced is set up the baseband processing unit that flows to any BBU except the described baseband processing unit that needs replacement for described.
Here need to prove, when fault has occured in certain or certain the several baseband processing units from BBU, monitor always the place from the main control unit of BBU will with the address information of this or this several baseband processing units with and handled antenna data information exchange cross the main control unit that the Ethernet maintenance channel sends to main BBU, the main control unit of main BBU can find idle or one or several suitable baseband processing unit by the IR switch according to working condition at that time from other baseband processing units except this one or several baseband processing unit, rebulid the path of the handled antenna data of this one or several baseband processing unit and one or several baseband processing unit described free time of finding or suitable, and then so that smooth running can be continued in whole base station.
Certainly, one or several baseband processing unit above-mentioned free time of finding or suitable can be the baseband processing unit among any BBU that is connected on the IR switch.
Embodiment three
See also Fig. 5, it is another architecture of base station figure of a kind of LTE of the present invention base station, comprises clock unit 501, main BBU201, from BBU202 with from BBU203:
Described clock unit 501 links to each other with the main control unit of each BBU outside BBU, is used for the synchronously clock frequency of each BBU.
Existing BBU has clock unit, be installed in the inside of the BBU at place, be used to the BBU at place that clock frequency is provided, present embodiment provides a kind of clock unit 501, it is an independent device, not subordinate and any BBU, synchronous clock frequency can be provided for the BBU of all connections, can be good at providing service for the LTE base station described in embodiment one or the embodiment two, BBU on a plurality of IR of being connected to switches can carry out work by the clock frequency that same clock unit provides, not only greatly improved the stability of whole base station, and the cost that provides respectively clock unit to bring for each BBU in the base station can be provided.
Certainly, this clock unit can be integrated in the IR switch in embodiment one or the embodiment two described LTE base stations, and the present invention does not limit the particular location of clock unit, so long as be independent of outside the BBU just passable.
Main BBU201, among embodiment one and embodiment two, be described in detail respectively from BBU202 with from BBU203, just repeat no more here.
Embodiment four
See also Fig. 6, it is another architecture of base station figure of a kind of LTE of the present invention base station, and it comprises main BBU601, from BBU602, main BBU611, from BBU612, IR switch 204 and RRU205:
In this embodiment, being made as one group of BBU with main BBU601 with from BBU602, is the BBU that is subordinated to main BBU601 from BBU602 wherein; Being made as another group BBU with main BBU611 with from BBU612, is the BBU that is subordinated to main BBU511 from BBU512 wherein.
Two groups of BBU all are connected on the IR switch 204, main BBU601 control IR switch 204 distributes antenna data in each BBU of place group, comprising main BBU601 with from BBU602, in like manner, same IR switch of main BBU611 control 204 distributes antenna data to the main BBU611 of place group with from BBU612.
Only drawn one from BBU among two groups of above-mentioned BBU, but the present invention not limiting to the number from BBU, can be the BBU of any number that can realize in theory.
Present embodiment has only been enumerated two groups of BBU, but the quantity that the BBU that the present invention does not connect the IR switch organizes limits, and can be some groups that allow in theory.
For described main BBU601, from BBU602, main BBU611 and from BBU612 all can with reference to embodiment one and the embodiment two to main BBU with from the description of BBU, just repeat no more here.
IR switch 204 and RRU205 are described in detail in embodiment one and embodiment two, repeat no more here.
Embodiment five
See also Fig. 7, it comprises step for the method flow diagram of a kind of base-band resource switching method of the present invention:
The S701:IR switch receives the antenna data that RRU sends.
The S702:IR switch receives the configuration order that the main control unit among the main BBU sends.
The S703:IR switch sets up according to the described configuration order that receives that antenna data flows to main BBU and from the path of the baseband processing unit of BBU.
The S704:IR switch according to described path allocation antenna data to main BBU with from the baseband processing unit of BBU, so that described main BBU and the baseband processing unit from BBU are processed the antenna data that is assigned to and from the operating state from BBU at the main control unit monitoring place of BBU.
Embodiment six
See also Fig. 8, it comprises step for another method flow diagram of a kind of base-band resource switching method of the present invention:
S801 to S804 sees also the content of the S701 to S704 among the embodiment five.
S805: send maintenance request to the main control unit of main BBU from the main control unit of BBU according to described operating state, described maintenance request comprises the address information of the baseband processing unit that needs are replaced and the information of the handled antenna data of this baseband processing unit.
S806: the main control unit of main BBU sends replace command to the IR switch according to the maintenance request that receives.
Preferably, send described maintenance request from BBU by the Ethernet maintenance channel.
The S807:IR switch flows to the path of the baseband processing unit that described needs replace according to the described replace command change antenna data that receives, and flows to the path that the described antenna data that needs the baseband processing unit replaced is set up the baseband processing unit that flows to the arbitrary BBU except the described baseband processing unit that needs replacement for described.
Preferably, each BBU uses the clock frequency of same each BBU of external clock units synchronization.
As can be seen from the above-described embodiment, the present invention uses the method for carrying out exchanges data outside BBU, so that the exchanges data between a plurality of BBU is achieved, has reduced the cost of LTE base station, reduces power consumption, and has greatly improved autgmentability and the flexibility of LTE base station.
Need to prove, one of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, to come the relevant hardware of instruction to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process such as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or store-memory body (Random AccessMemory, RAM) etc. at random.
More than a kind of LTE base station provided by the present invention and a kind of base-band resource switching method are described in detail, used specific embodiment herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, 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 (8)

1. a Long Term Evolution LTE base station is characterized in that, comprises radio frequency remote unit RRU, at least two indoor baseband processing unit BBU and an IR switch that is positioned at the BBU outside:
Described RRU is used for the antenna data that receives is sent to the IR switch;
Described at least two BBU comprise a main BBU and at least one belong to described main BBU from BBU:
Described main BBU comprises a main control unit and n baseband processing unit, and n is the natural number more than or equal to 1;
The main control unit of described main BBU links to each other with the IR switch, is used for sending configuration order to the IR switch;
The baseband processing unit of described main BBU is for the treatment of the antenna data that is assigned to self;
Describedly comprise a main control unit and n baseband processing unit from BBU, n is the natural number more than or equal to 1;
Described main control unit from BBU is for the operating state from BBU at monitoring place;
Described baseband processing unit from BBU is for the treatment of the antenna data that is assigned to self;
Described IR switch is positioned at the BBU outside, is used for setting up the path that the described antenna data that receives flows to the baseband processing unit of each BBU according to the configuration order of main BBU, and according to the baseband processing unit of described path allocation antenna data to each BBU.
2. base station according to claim 1, it is characterized in that, described main control unit from BBU links to each other with the main control unit of main BBU, also be used for sending maintenance request to the main control unit of described main BBU according to described operating state, described maintenance request comprises the address information of the baseband processing unit that needs are replaced and the information of the handled antenna data of this baseband processing unit;
Accordingly, the main control unit of described main BBU also is used for sending replace command to the IR switch according to the maintenance request that receives;
Described IR switch, also be used for flowing to according to replace command change antenna data the path of the baseband processing unit that described needs replace, and flow to the path that the described antenna data that needs the baseband processing unit replaced is set up the baseband processing unit that flows to any BBU except the described baseband processing unit that needs replacement for described.
3. base station according to claim 1 is characterized in that, also comprises clock unit:
Described clock unit links to each other with the main control unit of each BBU outside BBU, is used for the synchronously clock frequency of each BBU.
4. base station according to claim 2 is characterized in that, described main control unit from BBU sends maintenance request to the main control unit of main BBU by the Ethernet maintenance channel.
5. a base-band resource switching method is characterized in that, is applied to comprise step as in the described LTE of any one base station among the claim 1-4:
The IR switch receives the antenna data that RRU sends;
The IR switch receives the configuration order that the main control unit among the main BBU sends;
The IR switch sets up according to the described configuration order that receives that antenna data flows to main BBU and from the path of the baseband processing unit of BBU;
The IR switch according to described path allocation antenna data to main BBU with from the baseband processing unit of BBU, so that described main BBU and the baseband processing unit from BBU are processed the antenna data that is assigned to and from the operating state from BBU at the main control unit monitoring place of BBU.
6. method according to claim 5 is characterized in that, also comprises:
Send maintenance request to the main control unit of main BBU from the main control unit of BBU according to described operating state, described maintenance request comprises the address information of the baseband processing unit that needs are replaced and the information of the handled antenna data of this baseband processing unit;
The main control unit of main BBU sends replace command to the IR switch according to the maintenance request that receives;
The IR switch flows to the path of the baseband processing unit that described needs replace according to the described replace command change antenna data that receives, and flows to the path that the described antenna data that needs the baseband processing unit replaced is set up the baseband processing unit that flows to the arbitrary BBU except the described baseband processing unit that needs replacement for described.
7. method according to claim 5 is characterized in that, also comprises:
Each BBU uses the clock frequency of same each BBU of external clock units synchronization.
8. method according to claim 6 is characterized in that, describedly sends described maintenance request from BBU by the Ethernet maintenance channel.
CN201210488757.0A 2012-11-26 2012-11-26 A kind of LTE base station and a kind of base-band resource switching method Active CN102946651B (en)

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CN103441799A (en) * 2013-08-27 2013-12-11 京信通信系统(中国)有限公司 Data signal transmission method and device
CN103607242A (en) * 2013-11-22 2014-02-26 大唐移动通信设备有限公司 Access method and device for RRU
CN103686814A (en) * 2013-12-25 2014-03-26 北京北方烽火科技有限公司 Base band unit, base station and base station system
CN104639448A (en) * 2014-12-18 2015-05-20 北京北方烽火科技有限公司 Method and system for forwarding base stations in LTE-A (Long Term Evolution-Advanced) system
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CN102547806A (en) * 2010-12-10 2012-07-04 中国移动通信集团广东有限公司 Distributed base station system and link protection method thereof

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CN102547806A (en) * 2010-12-10 2012-07-04 中国移动通信集团广东有限公司 Distributed base station system and link protection method thereof

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Publication number Priority date Publication date Assignee Title
CN103441799A (en) * 2013-08-27 2013-12-11 京信通信系统(中国)有限公司 Data signal transmission method and device
CN103607242A (en) * 2013-11-22 2014-02-26 大唐移动通信设备有限公司 Access method and device for RRU
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CN104639448A (en) * 2014-12-18 2015-05-20 北京北方烽火科技有限公司 Method and system for forwarding base stations in LTE-A (Long Term Evolution-Advanced) system
CN111148048A (en) * 2019-12-18 2020-05-12 京信通信系统(中国)有限公司 Information source scheduling method, device, equipment and storage medium
CN111148048B (en) * 2019-12-18 2022-03-25 京信网络系统股份有限公司 Information source scheduling method, device, equipment and storage medium

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