CN103178899A - Fiber interface rate self-adaption method and device - Google Patents
Fiber interface rate self-adaption method and device Download PDFInfo
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- CN103178899A CN103178899A CN2011104375135A CN201110437513A CN103178899A CN 103178899 A CN103178899 A CN 103178899A CN 2011104375135 A CN2011104375135 A CN 2011104375135A CN 201110437513 A CN201110437513 A CN 201110437513A CN 103178899 A CN103178899 A CN 103178899A
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Abstract
The invention discloses a fiber interface rate self-adaption method and device. The fiber interface rate self-adaption method includes that fibers are connected with the fiber interface; when no effective signal is received from the fiber interface, every rate which is supported by the fiber interface is selected one by one to configure the fiber interface until an effective signal is received from the fiber interface or all rates are selected under a condition of current rate configuration. The fiber interface rate self-adaption device comprises a fiber detection module and a rate configuration module. The fiber interface rate self-adaption method and device has the advantages of being capable of improving the installation rate of wireless network engineering and small in occupying resource and easy to achieve.
Description
Technical field
The present invention relates to wireless communication field, be specifically related to a kind of optical fiber interface speed self-adaption method and device.
Background technology
Cordless communication network uses distributed base station in a large number now, adopt BBU (Building Base band Unit, indoor baseband processing unit)+RRU (Radio Remote Unit, Remote Radio Unit) framework, a BBU can connect a plurality of RRU, and BBU is connected by optical fiber with RRU, and optical fiber interface is followed standard CPR I (Common Public Radio Interface, common public radio interface), and the light mouth speed of BBU and RRU to be consistent.
The specific implementation of optical fiber interface is generally to use (the Serializer/Deserializer with Serdes, bus series connection/deserializer) FPGA of interface (Field Programmable Gate Array, field programmable gate array) chip, be first certain operating rate with the Serdes interface configuration during use, as 6.144G, 4.9152G, 3.072G, 2.4576G or 1.2288G etc., then base band data is sent to optical fiber by CPRI agreement framing by the Serdes interface.
To the BBU+RRU networking time, MIMO (Multiple-Input Multiple-Output due to the wireless network support, multiple-input and multiple-output) antenna configuration is different with bandwidth, the speed of base band data optical fiber is also different, therefore to first configure the fiber work speed of BBU and RRU, only have that light mouth speed is identical could work.Usual way is the first optical fiber speed work to fix of RRU, and BBU configures the operating rate of this flash of light preceding an earthquake mouth more again according to the optical fiber speed of RRU, when connecting different RRU, different optical fiber speed is arranged, and the light mouth that BBU is corresponding also will configure different speed.
Because a BBU will connect a plurality of RRU, configuration sometimes makes mistakes and will cause the link down of BBU and RRU, and the installation site apart from each other of BBU and RRU in Practical Project, and problem is investigated cumbersome.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method and device of optical fiber interface rate adaptation coupling, improves wireless network project installation efficient.
For solving the problems of the technologies described above, the invention provides a kind of optical fiber interface speed self-adaption method, comprising:
When optical fiber interface is connected with optical fiber and does not receive useful signal from this optical fiber interface, select one by one this optical fiber interface of rate configuration from the speed of this optical fiber interface support, until under the present rate configuration, receive useful signal from this optical fiber interface, perhaps all speed have traveled through.
Further, the described speed of selecting one by one from the speed of this optical fiber interface support comprises:
According to speed selective sequential from high to low; Perhaps
According to speed selective sequential from low to high.
Further, described useful signal comprises: the optical fiber synchronizing signal.
Further, after all speed have traveled through, still can't receive useful signal from this optical fiber interface, superior equipment reports an error.
Further, described optical fiber interface is connected with optical fiber and does not receive useful signal from this optical fiber interface, comprising: described optical fiber interface is connected with optical fiber and does not all receive useful signal through repeated detection from this optical fiber interface.
For solving the problems of the technologies described above, the present invention also provides a kind of optical fiber interface rate adaptation device, comprises fiber detection module and rate configuration module, wherein:
Described fiber detection module is used for starting described rate configuration module when optical fiber interface being detected and be connected with optical fiber and do not receive useful signal from this optical fiber interface; And when being used for receiving useful signal from this optical fiber interface, notify described rate configuration module;
Described rate configuration module is used for selecting one by one this optical fiber interface of rate configuration from the speed of this optical fiber interface support, until under the present rate configuration, described fiber detection module receives useful signal from this optical fiber interface, perhaps all speed have traveled through.
Compared to the prior art, the embodiment of the present invention increases light mouth speed Auto-matching function at the FPGA of BBU side, operating rate at BBU side detection of dynamic RRU optical fiber, and the light mouth speed that automatically configures BBU is consistent with RRU, improve wireless network project installation efficient, be more convenient for the management to RRU equipment.And it is to utilize existing FPGA and cpu i/f that light mouth rate adaptation is processed, and resource occupation is few, realizes simple.Except BBU, other have optical fiber interface and exist the equipment of same problem all can use the inventive method.
Description of drawings
Fig. 1 is the process chart of the embodiment of the present invention 1 optical fiber interface rate adaptation;
Fig. 2 is the structural representation of the embodiment of the present invention 2 optical fiber interface rate adaptation devices;
Fig. 3 is the structural representation of BBU.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing, embodiments of the invention are elaborated.Need to prove, in the situation that do not conflict, the embodiment in the application and the feature in embodiment be combination in any mutually.
The present embodiment adopts following methods to realize: when optical fiber interface is connected with optical fiber and does not receive useful signal from this optical fiber interface, select one by one this optical fiber interface of rate configuration from the speed of this optical fiber interface support, until under the present rate configuration, receive useful signal from this optical fiber interface, perhaps all speed have traveled through.
During selection, can be according to speed selective sequential from high to low, also can be according to speed selective sequential from low to high.
The below is with a concrete example explanation said method, and in example, the Serdes interface is above-mentioned optical fiber interface, as shown in Figure 1, comprises the following steps:
After fiber detection module detects and is connected with optical fiber and does not receive useful signal from this Serdes interface, can be by sending interrupt notification rate configuration module.
For fear of false triggering, whether fiber detection module can first regular check receive useful signal, when repeatedly inspection does not still receive useful signal, just confirm not receive useful signal from this interface, just trigger the rate configuration module and start the self-adaptive processing flow process.
Above-mentioned useful signal comprises: the optical fiber synchronizing signal.If adopt the CPRI agreement, it is the CPRI frame synchronizing signal.
At first step 2 is configured to the Serdes interface rate the highlyest, supposes that the maximum Serdes interface rate of current support is 6.144G, revises corresponding Serdes configuration register and work clock, makes the Serdes interface by the work of 6.144G speed;
Step 3 detects whether the CPRI frame synchronizing signal is arranged, if having, represents that current fiber work speed is 6.144G, just by this speed normal operation, successfully finishes the rate adaptation handling process, otherwise execution in step 4;
Particularly, fiber detection module can by reading the optical fiber status register, judge whether the CPRI frame synchronizing signal.
Step 4 is configured to 4.9152G with the Serdes interface rate, revises corresponding Serdes configuration register and work clock, makes the Serdes interface by the work of 4.9152G speed;
Step 6 is configured to 3.072G with the Serdes interface rate, revises corresponding Serdes configuration register and work clock, makes the Serdes interface by the work of 3.072G speed;
Step 7 detects whether the CPRI frame synchronizing signal is arranged, if having, represents that current fiber work speed is 3.072G, just by this speed normal operation, successfully finishes the rate adaptation handling process, otherwise execution in step 8;
Step 8 is configured to 2.4576G with the Serdes interface rate, revises corresponding Serdes configuration register and work clock, makes the Serdes interface by the work of 2.4576G speed;
Realize the device of said method as shown in Figure 2, comprising: fiber detection module and rate configuration module, wherein:
This fiber detection module is used for starting described rate configuration module when optical fiber interface being detected and be connected with optical fiber and do not receive useful signal from this optical fiber interface; And when being used for receiving useful signal from this optical fiber interface, notice rate configuration module;
This rate configuration module is used for selecting one by one this optical fiber interface of rate configuration from the speed of this optical fiber interface support, until under the present rate configuration, this fiber detection module receives useful signal from this optical fiber interface, perhaps all speed have traveled through.
Particularly, this rate configuration module can be according to speed selective sequential speed from high to low, perhaps according to speed selective sequential speed from low to high.
Preferably, this rate configuration module also is used for having traveled through when all speed, and described fiber detection module be still can't receive useful signal from this optical fiber interface the time, and superior equipment reports an error.
Preferably, this fiber detection module detects in the following ways from this optical fiber interface and do not receive useful signal: described fiber detection module does not all receive useful signal through repeated detection from this optical fiber interface, thinks not receive useful signal from this optical fiber interface.
The below is specifically described as an example of Fig. 3 example.
Fig. 3 is CPU (the Central Processing Unit of BBU side, CPU) and FPGA, wherein FPGA comprises the interface unit with CPU, and Serdes configuration register, optical fiber status register, base band data processing unit, CPRI framing unit, CPRI separate frame unit and Serdes interface.Wherein, CPU, CPU and FPGA interface, Serdes interface and Serdes configuration register have been completed the function of rate configuration module jointly; CPU, CPU and FPGA interface, Serdes interface, CPRI solution frame unit and optical fiber status register are completed the function of fiber detection module jointly.
The Serdes configuration register is used for configuring the operating rate of the Serdes interface of fpga chip, the Serdes interface rate of existing fpga chip all can be joined, and backward compatible, the general maximum interface rate of supporting 6.144G, the fpga chip that now newly goes out, as the V7 Series FPGA chip of Xilinx company, maximum Serdes interface rate has 28.05G.
Under current light mouth rate configuration, by optical fiber status register detection fiber link, whether useful signal is arranged, namely by CPRI light mouth solution frame, whether can obtain the 10ms rate signals, if have, it is to work under the speed of current configuration that expression receives optical fiber, otherwise the speed of expression optical fiber is not the speed of current configuration, and detected state is reflected to the optical fiber status register.
CPU is the main executive of light mouth rate adaptation flow process, by FPGA interface accessing light mouth status register, when the state that optical fiber inserts being detected and not receiving useful signal from this optical fiber interface, CPU just initiates optical fiber rate adaptation flow process, by different Serdes interface rates is set, the fiber-optic signal state that detects under the different Serdes interface rates of poll, just represent that current Serdes interface configuration is the operating rate of optical fiber when obtaining a stable 10ms frame frequency, process so complete light mouth rate adaptation.
One of ordinary skill in the art will appreciate that all or part of step in said method can come the instruction related hardware to complete by program, described program can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Certainly; the present invention also can have other various embodiments; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. optical fiber interface speed self-adaption method comprises:
When optical fiber interface is connected with optical fiber and does not receive useful signal from this optical fiber interface, select one by one this optical fiber interface of rate configuration from the speed of this optical fiber interface support, until under the present rate configuration, receive useful signal from this optical fiber interface, perhaps all speed have traveled through.
2. the method for claim 1 is characterized in that:
The described speed of selecting one by one from the speed of this optical fiber interface support comprises:
According to speed selective sequential from high to low; Perhaps
According to speed selective sequential from low to high.
3. method as claimed in claim 1 or 2 is characterized in that:
Described useful signal comprises: the optical fiber synchronizing signal.
4. the method for claim 1 is characterized in that:
After all speed have traveled through, still can't receive useful signal from this optical fiber interface, superior equipment reports an error.
5. the method for claim 1 is characterized in that:
Described optical fiber interface is connected with optical fiber and does not receive useful signal from this optical fiber interface, comprising: described optical fiber interface is connected with optical fiber and does not all receive useful signal through repeated detection from this optical fiber interface.
6. an optical fiber interface rate adaptation device, comprise fiber detection module and rate configuration module, wherein:
Described fiber detection module is used for starting described rate configuration module when optical fiber interface being detected and be connected with optical fiber and do not receive useful signal from this optical fiber interface; And when being used for receiving useful signal from this optical fiber interface, notify described rate configuration module;
Described rate configuration module is used for selecting one by one this optical fiber interface of rate configuration from the speed of this optical fiber interface support, until under the present rate configuration, described fiber detection module receives useful signal from this optical fiber interface, perhaps all speed have traveled through.
7. device as claimed in claim 6 is characterized in that:
Described rate configuration module is for selecting one by one this optical fiber interface of rate configuration from the speed of this optical fiber interface support in the following ways:
According to speed selective sequential from high to low; Perhaps
According to speed selective sequential from low to high.
8. device as described in claim 6 or 7 is characterized in that:
Described useful signal comprises: the optical fiber synchronizing signal.
9. device as claimed in claim 6 is characterized in that:
Described rate configuration module also is used for having traveled through when all speed, and described fiber detection module be still can't receive useful signal from this optical fiber interface the time, and superior equipment reports an error.
10. device as claimed in claim 6 is characterized in that:
Described fiber detection module is not receive useful signal for detecting in the following ways from this optical fiber interface: described fiber detection module does not all receive useful signal through repeated detection from this optical fiber interface, thinks not receive useful signal from this optical fiber interface.
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| CN2011104375135A CN103178899A (en) | 2011-12-23 | 2011-12-23 | Fiber interface rate self-adaption method and device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104639468A (en) * | 2015-01-07 | 2015-05-20 | 武汉微创光电股份有限公司 | Optical port adaptive Ethernet switch and adaptive method thereof |
| CN106487519A (en) * | 2015-09-02 | 2017-03-08 | 中兴通讯股份有限公司 | A kind of communication equipment method of attachment and system, optical port speed conversion equipment |
| CN110880952A (en) * | 2019-10-23 | 2020-03-13 | 浪潮思科网络科技有限公司 | Switch interface rate self-adaptive tuning system, method, equipment and medium |
| CN111541958A (en) * | 2020-04-21 | 2020-08-14 | 深圳市三旺通信股份有限公司 | Optical interface rate self-adaption method, equipment, device and readable storage medium |
| CN111885617A (en) * | 2020-09-28 | 2020-11-03 | 三维通信股份有限公司 | Radio remote unit and RRU and BBU networking system |
| CN115189708A (en) * | 2021-04-06 | 2022-10-14 | 大唐移动通信设备有限公司 | AAU (architecture) and BBU (building base band unit) interface rate configuration method, AAU and BBU |
| CN115714941A (en) * | 2023-01-05 | 2023-02-24 | 北京工蜂电子技术有限公司 | Optical interface rate self-adaption method, device, medium and equipment of network communication equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101610116A (en) * | 2009-07-17 | 2009-12-23 | 深圳市巨联光电技术有限公司 | Optical port self-adaptive ethernet optical fiber transceiver and adaptive approach thereof |
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- 2011-12-23 CN CN2011104375135A patent/CN103178899A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101610116A (en) * | 2009-07-17 | 2009-12-23 | 深圳市巨联光电技术有限公司 | Optical port self-adaptive ethernet optical fiber transceiver and adaptive approach thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104639468A (en) * | 2015-01-07 | 2015-05-20 | 武汉微创光电股份有限公司 | Optical port adaptive Ethernet switch and adaptive method thereof |
| CN106487519A (en) * | 2015-09-02 | 2017-03-08 | 中兴通讯股份有限公司 | A kind of communication equipment method of attachment and system, optical port speed conversion equipment |
| CN110880952A (en) * | 2019-10-23 | 2020-03-13 | 浪潮思科网络科技有限公司 | Switch interface rate self-adaptive tuning system, method, equipment and medium |
| CN111541958A (en) * | 2020-04-21 | 2020-08-14 | 深圳市三旺通信股份有限公司 | Optical interface rate self-adaption method, equipment, device and readable storage medium |
| CN111885617A (en) * | 2020-09-28 | 2020-11-03 | 三维通信股份有限公司 | Radio remote unit and RRU and BBU networking system |
| CN115189708A (en) * | 2021-04-06 | 2022-10-14 | 大唐移动通信设备有限公司 | AAU (architecture) and BBU (building base band unit) interface rate configuration method, AAU and BBU |
| CN115189708B (en) * | 2021-04-06 | 2023-07-21 | 大唐移动通信设备有限公司 | AAU and BBU interface rate configuration method, AAU and BBU |
| CN115714941A (en) * | 2023-01-05 | 2023-02-24 | 北京工蜂电子技术有限公司 | Optical interface rate self-adaption method, device, medium and equipment of network communication equipment |
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Application publication date: 20130626 |