CN108965495B - Full-network automatic numbering method for multi-standard micropower all-optical distribution system - Google Patents
Full-network automatic numbering method for multi-standard micropower all-optical distribution system Download PDFInfo
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Abstract
The invention belongs to the technical field of wireless communication, and discloses a full-network automatic numbering method for a multi-system micropower all-optical distribution system. The invention solves the problems of higher automatic coding cost, lower manual coding efficiency and lower accuracy of a multi-system micropower all-optical distribution system in the prior art.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a full-network automatic numbering method for a multi-system micropower all-optical distribution system.
Background
The multi-system micropower all-optical distribution system is mainly characterized in that optical fiber resources are used as transmission media, the coverage range of base station signals is expanded, and coverage blind zones are eliminated. Especially in the construction of indoor subsystem, the full coverage of 2G/3G/4G signals can be realized by one-time construction. The multi-system micropower all-optical distribution system is favored by operators due to the characteristics of convenient construction, easy property coordination, simple later maintenance and the like; the system is formed by star-type and chain-type networking of three devices, namely an access unit (MU), an Extended Unit (EU) and a remote Radio Unit (RU), through optical fibers.
In the actual engineering opening process, in order to facilitate monitoring and management of all devices in the whole network through the MU devices, device numbering needs to be performed on all EUs and RUs. At present, two methods of automatic numbering and manual numbering are commonly used, the automatic numbering method adopts full-network IP, an independent IP address is automatically allocated to each device to realize the function of full-network numbering, but the method needs each device to have a special MAC for allocating the IP address, so that the hardware cost of the device is greatly increased. The manual numbering method realizes the function of whole-network numbering by manually setting an independent equipment number for each EU through debugging and testing software, and although the method has lower equipment cost, the project is complicated to open and the risk of errors exists in manual and manual setting.
Disclosure of Invention
The embodiment of the application provides a full-network automatic numbering method for a multi-standard micropower all-optical distribution system, and solves the problems that in the prior art, the multi-standard micropower all-optical distribution system is high in automatic coding cost and low in manual coding efficiency and accuracy.
The embodiment of the application provides a full-network automatic numbering method for a multi-standard micropower all-optical distribution system, which comprises the following steps:
step S1, the access unit obtains the number of the extension units connected under each optical port;
step S2, the access unit numbers the expansion units according to the number of the expansion units connected under each optical port;
and step S3, the expansion unit numbers the connected remote radio frequency units according to the optical port sequence.
Preferably, the step S1 includes the steps of:
the access unit respectively sends an initial ID number to the expansion unit positioned at the first stage under each optical port, and the initial ID number is 1;
the expansion unit at the first level automatically adds 1 to the received initial ID number and then forwards the initial ID number to the expansion unit at the next level;
the expansion unit at the middle level receives the ID number sent by the expansion unit at the upper level, automatically adds 1 to the ID number and forwards the ID number to the expansion unit at the next level;
the expansion unit at the last stage forwards the received ID number to the last stage expansion unit;
the expansion unit at the middle level receives the ID number sent by the expansion unit at the next level and forwards the ID number to the expansion unit at the previous level;
the expansion unit at the first stage receives the ID number sent by the expansion unit at the next stage and forwards the ID number to the access unit;
the access unit acquires the number of the extension units connected under each optical port according to the ID number received from each optical port.
Preferably, if the main optical port and the auxiliary optical port of the extension unit are simultaneously located, the extension unit is not located at the last stage; if the main optical port is in place and the auxiliary optical port is not in place, the expansion unit is located at the last stage.
Preferably, in step S2, the access unit sends the reconfiguration ID numbers to the extension units according to the number of extension units connected to each optical port, and numbers the extension units, where the reconfiguration ID number received by the extension unit located at the first stage below the ith optical port of the access unit is denoted as ID (i):
when i is 1, ID (i) is 1,
when i > 1, ID (i) is EU _ cnt (i-1) + EU _ cnt (i-2) + … … + EU _ cnt (1) +1,
wherein, EU _ cnt (i) represents the number of extension units connected under the ith optical port of the access unit;
the number of the reconfiguration ID received by the extension unit positioned at the nth stage under the ith optical port of the access unit is ID (i) + n-1.
Preferably, when the number of the access devices in the whole network or the networking mode changes, the number of the access device is updated, and the access device includes an extension unit and a remote radio unit.
Preferably, the extension unit performs automatic numbering using three levels of nested numbering of id (mu) -id (eu) -id (ru), where id (mu) is the number of the access unit, id (eu) is the number of the extension unit, id (ru) is the number of the remote radio unit, and id (ru) is 0.
Preferably, the remote radio units perform automatic numbering by using a three-level nested numbering scheme of id (mu) -id (eu) -id (ru), wherein id (mu) is the number of the access unit, id (eu) is the number of the extension unit, and id (ru) is the number of the remote radio unit.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
compared with the prior art, the invention provides a brand-new automatic numbering method for the whole network of a multi-system micropower all-optical distribution system, which comprises the steps of firstly obtaining the number of extension units connected under each optical port, then numbering the extension units according to the number of the extension units connected under each optical port, and directly numbering the remote radio frequency units according to the optical port sequence of the extension units.
Drawings
In order to more clearly illustrate the technical solution in the present embodiment, the drawings needed to be used in the description of the embodiment will be briefly introduced below, and it is obvious that the drawings in the following description are one embodiment of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a network topology diagram of a multi-standard micropower all-optical distribution system involved in a full-network automatic encoding method of the multi-standard micropower all-optical distribution system according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating that an access unit MU automatically numbers an extension unit EU in a full-network automatic coding method of a multi-system micropower all-optical distribution system according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating that an extension unit EU automatically numbers a remote radio unit RU in a multi-system micropower all-optical distribution system full-network automatic coding method according to an embodiment of the present invention;
fig. 4 is a structural diagram of a CPRI protocol frame in a full-network automatic coding method for a multi-system micropower all-optical distribution system according to an embodiment of the present invention.
Detailed Description
The invention provides a full-network automatic numbering method for a multi-system micropower all-optical distribution system, which can realize quick, accurate and automatic numbering of full-network equipment on the basis of not increasing the hardware cost of the equipment, and enables the engineering to be more efficient and convenient to open.
The technical scheme adopted by the invention is as follows: each optical port of the access unit MU firstly sends an initial ID number (the initial ID number is 1) to an extension unit EU (namely, an extension unit located at the first stage) connected below each optical port, each stage of extension unit EU (including an extension unit located at the first stage and an extension unit located at the middle stage) receives the sent ID number, then automatically adds 1 to the received ID number and forwards the ID number to the next stage of extension unit EU, the extension unit EU located at the last stage directly forwards the received ID number to the previous stage of extension unit EU, the extension units EU located at other stages forward the received ID number to the previous stage of extension unit EU step by step, thus the access unit MU counts the number of the extension units EU below each optical port, and then dynamically reconfigures the ID number of each optical port according to the number of the extension units EU to issue to each extension unit EU, and completes the automatic numbering of each extension unit EU; each extension unit EU numbers each remote radio unit RU directly according to the optical port sequence 1-n (1-n), and when the number of devices or the networking mode changes in the network, the access unit MU will automatically reconfigure the ID number of each optical port to renumber the same. Thus, each extension unit EU and remote radio unit RU performs automatic numbering using three-level nested numbering scheme of id (mu) -id (EU) -id (RU), and the number of each device is unique.
Therefore, the coding method provided by the invention can realize dynamic automatic numbering in the whole network on the basis of not increasing the hardware cost of equipment, and can quickly and accurately finish automatic numbering when the number of equipment in the network changes or the networking mode changes.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
As shown in fig. 1, the multi-system micropower all-optical distribution system according to the present invention includes an access unit MU, where one access unit MU may be connected to a plurality of extension units EU, and one extension unit EU may be connected to a plurality of remote radio units RU.
The invention provides a full-network automatic numbering method for a multi-standard micropower all-optical distribution system, which mainly comprises the following steps:
step S1, the access unit MU obtains the number of the extension units EU connected to each optical port.
As shown in fig. 2, the access unit MU includes n optical ports, and the method for acquiring the number of the extension units EU connected under each optical port is the same, and the following describes how to acquire the number of the extension units EU connected under the optical port No. 1 in detail by taking the optical port No. 1 of the access unit MU connected with three extension units EU as an example.
First, the optical port 1(Opt1) of the access unit MU transmits an initial ID number ID _ cnt (ID _ cnt ═ 1) to the extension unit EU1_1 located at the first stage;
the ID number received by the extension unit EU1_1 at the first stage is denoted by re _ ID (where the ID value is 1), and the extension unit EU1_1 at the first stage automatically adds 1 to re _ ID (i.e., re _ ID +1 in fig. 2, and the value is 2) and forwards the re _ ID to the next stage of extension unit (i.e., the extension unit EU1_2 at the second stage);
the extension unit EU1_2 at the second stage (i.e. the extension unit at the middle stage) receives the ID number (here, the ID value is 2) sent by the extension unit at the previous stage, and automatically adds 1 (i.e. re _ ID +1 in fig. 2, the value is 3) to the ID number and forwards the ID number to the extension unit at the next stage (i.e. the extension unit EU1_3 at the third stage);
the extension unit EU1_3 located at the third stage (i.e., the extension unit located at the last stage) directly forwards the received ID number (value 3) to the extension unit at the previous stage (i.e., the extension unit EU1_2 located at the second stage);
the extension unit EU1_2 at the second stage directly forwards re _ id (value 3) transmitted from the extension unit EU1_3 at the third stage to the extension unit EU1_1 at the first stage, and the extension unit EU1_1 at the first stage directly forwards re _ id (value 3) transmitted from the extension unit EU1_2 at the second stage to the access unit;
the access unit obtains the number of the extension units connected under the number 1 optical port according to re _ id (the value is 3) received from the extension unit EU1_1 located at the first stage, that is, three extension units EU are accessed.
Step S2, the access unit MU numbers the extension units according to the number of extension units connected under each optical port.
The access unit MU sends the reconfiguration ID numbers to the extension units according to the number of the extension units connected under each optical port, numbers the extension units, and the reconfiguration ID number received by the extension unit positioned at the first stage under the ith optical port of the access unit MU is denoted as ID (i):
when i is 1, ID (i) is 1,
when i > 1, ID (i) is EU _ cnt (i-1) + EU _ cnt (i-2) + … … + EU _ cnt (1) +1,
wherein, EU _ cnt (i) represents the number of extension units connected under the ith optical port of the access unit;
the reconfiguration ID number received by the extension unit positioned at the nth stage under the ith optical port of the access unit MU is ID (i) + n-1.
In the following, three extension units EU are connected to the optical interface No. 1 of the access unit MU, two extension units EU are connected to the optical interface No. 2 of the access unit MU, and one extension unit EU is connected to the optical interface No. 3 of the access unit MU as an example.
The reconfiguration ID number received by the extension unit EU1_1 located at the first stage under the No. 1 optical port of the access unit MU is ID (1) ═ 1, the reconfiguration ID number of the extension unit EU1_2 located at the second stage under the No. 1 optical port is ID (1) +2-1 ═ 2, and so on, and the reconfiguration ID number of the EU1_3 is 3.
Since EU _ cnt (1) is 3, the extension unit EU2_1 located at the first stage under No. 2 optical port receives the reconfiguration ID number ID (2) which is EU _ cnt (1) +1 which is 3+1 which is 4, and similarly, the extension unit EU2_2 located at the second stage under No. 2 optical port has the reconfiguration ID number ID (2) +2-1 which is 5.
Since EU _ cnt (1) is equal to 3 and EU _ cnt (2) is equal to 2, the reconfiguration ID number received by the extension unit EU3_1 located at the first stage under No. 3 optical port is 6.
The extension unit EU uses three-level nested numbering of id (MU) -id (EU) -id (ru) to accomplish automatic numbering, the system described in this embodiment has only one access unit MU, so id (MU) can be a fixed value (for example, set to 1) set manually, and thus, EU1_1 is numbered 1-1-0, EU1_2 is numbered 1-2-0, EU1_3 is numbered 1-3-0, EU2_1 is numbered 1-4-0,
EU2_2 is numbered 1-5-0, EU3_1 is numbered 1-6-0.
Step S3, the expansion unit EU numbers the remote radio unit RU according to the optical port order.
As shown in fig. 3, the optical ports of the extension unit EU are sequentially arranged from 1 to n, each optical port is followed by a remote radio unit RU (referred to as RU1 and RU2 … … RUn, respectively), and the extension unit EU in fig. 3 is numbered 1-1-1 as RU1, 1-1-2 as RU2, and 1-1-n as RUn, for example, as EU1_1 described above.
The full-network automatic numbering method for the multi-system digital micropower all-optical distribution system provided by the invention is further explained below.
For simplicity, the access unit MU, the extension unit EU, and the remote radio unit RU are hereinafter referred to as MU devices, EU devices, and RU devices.
The structure of the CPRI protocol frame in the coding method is shown in figure 4, the CPRI frame format adopts a step-by-step nesting mode, 32 bits of data form a word, 32 words form a basic frame, 256 basic frames form superframes, and 150 superframes form a radio frame. The port ID number is inserted at the W-0 position in the CPRI frame structure.
In the downlink, the coding method comprises the following steps:
step S1, each optical port of the MU device inserts a byte of initial ID _ cnt 1 into the CPRI frame structure, and transmits the ID to the next EU device through the optical fiber.
Step S2, the MAIN optical interface (MAIN optical interface) of the EU device resolves the optical interface ID number re _ ID of the EU device of the previous stage in the received CPRI frame structure, and if the EU device is in the middle stage, forwards re _ ID +1 to the EU device of the next stage through the SIDE optical interface (auxiliary optical interface) CPRI frame; if the EU device is in the last stage, directly transmitting the re _ id to the upper stage device through the MAIN optical interface CPRI frame. Determining whether the EU equipment is in a non-final stage or a final stage according to the in-place state of the MAIN optical port and the SIDE optical port, wherein if the MAIN optical port and the SIDE optical port of the EU equipment are in place at the same time, the EU equipment is in an intermediate stage or a first stage; if only the MAIN optical port is in place and the SIDE optical port is not in place, the EU device is at the final stage.
And step S3, the EU equipment numbers the RU equipment connected with the EU equipment according to the optical interface sequence 1-n, then sends the ID numbers to each RU equipment through the CPRI frame, and the RU equipment obtains the ID numbers of the equipment by analyzing the CPRI frame and reports the ID numbers to the CPU of the RU equipment, so that the physical position of each RU equipment, namely the optical interface of the EU equipment in several numbers can be determined.
In uplink, the coding method comprises the following steps:
step S1, the last stage EU device directly transfers re _ id received by MAIN optical interface back to the last stage EU device through MAIN optical interface CPRI frame, and the non-last stage EU device transfers re _ id received by SIDE optical interface back to the last stage device through MAIN optical interface CPRI frame.
Step S2, each optical port of the MU device receives the CPRI frame of the EU device in the next level and analyzes the ID number returned by the EU device in the last level, and the MU device uses the ID number as the number EU _ cnt of the EU connected to the link, and recalculates and assigns the ID number of each optical port according to the EU _ cnt (i) value of each optical port, so as to calculate the number ID (i) assigned to the ith optical port, which is EU _ cnt (i-1) + EU _ cnt (i-2) + … … EU _ cnt (1) +1, i > 1; when i is 1, ID (1) is 1. When the number of the devices in the network changes or the networking mode changes, the EU _ cnt (i) value of each optical port of the MU device changes correspondingly, so that the MU device automatically recalculates and allocates the ID number of each optical port, and the numbers of all the devices are automatically updated.
Step S3, after the MU device recalculates and assigns the ID number of each optical port according to the EU _ cnt (i) value, the numbering of all EU devices and RU devices is completed according to the downlink procedure.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (5)
1. A full-network automatic numbering method for a multi-standard micropower all-optical distribution system is characterized by comprising the following steps:
step S1, the access unit obtains the number of the extension units connected under each optical port;
step S2, the access unit numbers the expansion units according to the number of the expansion units connected under each optical port;
step S3, the expansion unit numbers the connected remote radio frequency units according to the optical port sequence;
the extension unit adopts a three-level nested numbering mode of Id (mu) -Id (eu) -Id (ru) to complete automatic numbering, wherein Id (mu) is the number of an access unit, Id (eu) is the number of the extension unit, Id (ru) is the number of a remote radio frequency unit, and Id (ru) is 0;
the remote radio unit adopts a three-level nested numbering mode of Id (mu) -Id (eu) -Id (ru) to complete automatic numbering, wherein Id (mu) is the number of an access unit, Id (eu) is the number of an extension unit, and Id (ru) is the number of the remote radio unit.
2. The full-network automatic numbering method for the multi-standard micropower all-optical distribution system according to claim 1, wherein the step S1 comprises the following steps:
the access unit respectively sends an initial ID number to the expansion unit positioned at the first stage under each optical port, and the initial ID number is 1;
the expansion unit at the first level automatically adds 1 to the received initial ID number and then forwards the initial ID number to the expansion unit at the next level;
the expansion unit at the middle level receives the ID number sent by the expansion unit at the upper level, automatically adds 1 to the ID number and forwards the ID number to the expansion unit at the next level;
the expansion unit at the last stage forwards the received ID number to the last stage expansion unit;
the expansion unit at the middle level receives the ID number sent by the expansion unit at the next level and forwards the ID number to the expansion unit at the previous level;
the expansion unit at the first stage receives the ID number sent by the expansion unit at the next stage and forwards the ID number to the access unit;
the access unit acquires the number of the extension units connected under each optical port according to the ID number received from each optical port.
3. The full-network automatic numbering method for multi-system micropower all-optical distribution systems according to claim 2, wherein if the main optical port and the auxiliary optical port of the extension unit are in place at the same time, the extension unit is not in the last stage; if the main optical port is in place and the auxiliary optical port is not in place, the expansion unit is located at the last stage.
4. The full-network automatic numbering method for multi-system micropower all-optical distribution systems according to claim 1, wherein in step S2, the access unit sends reconfiguration ID numbers to the extension units according to the number of extension units connected under each optical port, numbers the extension units, and the reconfiguration ID number received by the extension unit located at the first stage under the ith optical port of the access unit is denoted as ID (i):
when i is 1, ID (i) is 1,
when i > 1, ID (i) is EU _ cnt (i-1) + EU _ cnt (i-2) + … … + EU _ cnt (1) +1,
wherein, EU _ cnt (i) represents the number of extension units connected under the ith optical port of the access unit;
the number of the reconfiguration ID received by the extension unit positioned at the nth stage under the ith optical port of the access unit is ID (i) + n-1.
5. The full-network automatic numbering method for multi-standard micropower all-optical distribution systems according to claim 1, wherein when the number of access devices in the full network or the networking mode changes, the number of the access device is updated, and the access device comprises an extension unit and a remote radio frequency unit.
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