CN101730088B - Method for automatically acquiring radio remote unit connection relation - Google Patents
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- CN101730088B CN101730088B CN2008101991542A CN200810199154A CN101730088B CN 101730088 B CN101730088 B CN 101730088B CN 2008101991542 A CN2008101991542 A CN 2008101991542A CN 200810199154 A CN200810199154 A CN 200810199154A CN 101730088 B CN101730088 B CN 101730088B
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Abstract
The invention provides a method for automatically acquiring the radio remote unit (RRU) connection relation, which comprises the following steps: the master optical interfaces of a BBU and RRUs are numbered; a variable Address is defined to stand for the RRU address, and the BBU initializes the Address according to the number of the master optical interfaces; the Address is transmitted through the a group of interconnected control words; the RRU uses the Address transmitted from the upper stage of the RRU or BBU as the address of the RRU, and the local RRU updates the corresponding Address value according to the numbers of the local master optical interfaces and the current RRU address and accordingly transmits the new Address to the lower stage RRU as the address of the lower stage RRU; and the RRUs report the address values to the BBU, and the BBU automatically acquires the radio remote unit connection relation according to the address values after acquiring all the RRU addresses. The invention can automatically allocate and acquire RRU addresses, has the advantage of low acquisition cost and can not produce errors.
Description
Technical field
The present invention relates to the networking mode management of wireless communication field Base Band Unit (BBU) and Remote Radio Unit (RRU), be specifically related to obtain automatically the method for radio remote unit connection relation.
Background technology
In the 3G communication system, the base station selection difficulty.The base station that tradition integrates Base-Band Processing and radio circuit is difficult to the needs of the quick networking of adaptation.Therefore the base station design thought of a new generation is that the Base-Band Processing part is separated with radio circuit, distinguishes Base-Band Processing and radio circuit through various means, forms the 3G networking new architecture that BBU adds RRU.The framework of this separation has greatly improved the flexibility of networking, has concentrated on-premise network capacity, distributed wireless covering, easy construction, advantage that cost is low, has reduced network construction cost.Main at present employing optical fiber is transmission medium, separates BBU and RRU, and has formed industry standards such as CPRI and OBSAI.In BBU and the RRU interface specification, I/Q data and control word passage have been defined at present.The I/Q data channel is used to transmit up-downgoing I/Q data; The control word passage be used for achieve frame synchronously, signaling transmission and some operation control commands that are used to safeguard.Between BBU and the RRU, can directly dispose relevant information through the control word passage between RRU and the RRU.
BBU supports the networking mode of various ways, like chrysanthemum chain, tree-like, star.In BBU and RRU network, think that the light mouth of BBU all is the key light mouth.The light mouth that RRU is connected with upper level RRU or BBU is that the light mouth that RRU is connected with next stage RRU is the key light mouth from the light mouth.A RRU has only one from the light mouth, but a plurality of key light mouths can be arranged.
In order to administer and maintain Remote Radio Unit, need obtain radio remote unit connection relation.At present to obtain the main method of radio remote unit connection relation be after the optical fiber of confirming node device connects to industry, and the mode through craft realizes the address assignment of Remote Radio Unit and obtains.Shown in Figure 1 is under traditional two daisy chain networking modes, the address assignment sketch map of Remote Radio Unit, and shown in Figure 2 is under the traditional tree-like networking mode, the address assignment sketch map of Remote Radio Unit.But, when this acquisition methods changes in the Remote Radio Unit topology, confirm that again the workload of network annexation is just very big, the cost of acquisition methods is high, and is easy to take place operating mistake.
Summary of the invention
The objective of the invention is to overcome the shortcoming and defect of above-mentioned prior art; A kind of method of obtaining radio remote unit connection relation automatically is provided; Use the address of this method Remote Radio Unit to distribute automatically and obtain by bottom; Thereby significantly reduced workload, the cost of acquisition methods is also low, and mistake can not occur.
The object of the invention realizes through following technical proposals: obtain the method for radio remote unit connection relation automatically, comprise the steps:
(1) the key light mouth of BBU is numbered;
(2) the key light mouth of each RRU is numbered;
(3) defined variable Address representes the address of RRU, and BBU is according to the numbering of BBU key light mouth, the address variables A ddress of the corresponding BBU key light of initialization mouth;
(4) through between BBU and the RRU, one group of interconnected control word is transmitted address variables A ddress between RRU and the RRU; The address variables A ddress that each RRU passes over the upper level RRU that receives or BBU; Address as wood ground RRU; Local RRU upgrades the address variables A ddress value of local corresponding key light slogan according to the address of local each key light slogan and current RRU simultaneously; And be forwarded to next stage RRU to an address variables A ddress who upgrades through corresponding key light mouth, as the address of next stage RRU;
(5) each RRU reports BBU to address value, and BBU obtains radio remote unit connection relation according to address value after obtaining all RRU addresses automatically.
In the said method, the said key light mouth to BBU of step (1) is numbered, and it thes contents are as follows: for the BBU with N key light mouth, the key light mouth is numbered 1,2 respectively ID number ..., N.
In the said method, the said key light mouth to each RRU of step (2) is numbered, and it thes contents are as follows: for the RRU with N key light mouth, the key light mouth is numbered 1,2 respectively ID number ..., N.
In the said method, the said BBU of step (3) is according to the numbering of BBU key light mouth, the address variables A ddress of the corresponding BBU key light of initialization mouth, and it thes contents are as follows: the value of the address variables A ddress of BBU key light mouth n is n, wherein, 1≤n≤N.
In the said method, the length of the said variables A ddress of step (3) is selected the topology decision by real network, if the maximum progression of network topology is N, and definition Address, the binary system length of variables A ddress is N*m bit; Wherein m represents the length of each byte.M=1 representes 1bit, and m=3 representes 3bit.
In the said method, the said local RRU of step (4) upgrades the address variables A ddress value of local corresponding key light slogan according to the address of local each key light slogan and current RRU, and its update method is following:
The address variate-value of the key light slogan that upgrades is that < < m+ light slogan, wherein < < expression moves to left Address=Address, and m represents the length of each byte.
The method that the present invention obtains radio remote unit connection relation automatically has the following advantages with respect to prior art:
(1) in the inventive method, the address of RRU is distributed by bottom automatically, need not accomplish configuration by manual work, and the cost of acquisition methods is also low, and mistake can not occur;
(2) in the inventive method, as long as the length long enough of address variables A ddress, the RRU number of supporting so is unrestricted, satisfies the requirement of maximum networking;
(3) the inventive method is applicable to chain, tree-like, star net forming mode;
Description of drawings
Fig. 1 is under traditional two daisy chain networking modes, the address assignment sketch map of Remote Radio Unit;
Fig. 2 is under the traditional tree-like networking mode, the address assignment sketch map of Remote Radio Unit;
Fig. 3 is under the daisy chain networking mode, the address assignment sketch map of the Remote Radio Unit of the inventive method;
Fig. 4 is under the tree-like networking mode, the address assignment sketch map of the Remote Radio Unit of the inventive method.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done to specify further, but execution mode of the present invention is not limited thereto.
The CPRI agreement has 256 control words, and wherein the self-defined word of manufacturer can be used for transmitting address variables A ddress of the present invention.
Shown in Figure 3 is under the daisy chain networking mode, the address assignment figure of the Remote Radio Unit of the inventive method.When RRU adopted the daisy chain networking mode, the present invention obtained the method for radio remote unit connection relation automatically, may further comprise the steps:
(1) the key light mouth of the BBU among Fig. 3 is numbered, this BBU has 2 key light mouths, and the key light mouth is numbered 1,2 respectively ID number;
(2) the key light mouth of each RRU among Fig. 3 is numbered, each RRU has only 1 key light mouth, and each key light mouth all is numbered 1 ID number;
(3) defined variable Address representes the address of RRU, and BBU is according to the numbering of BBU key light mouth, the address variables A ddress of the corresponding BBU key light of initialization mouth, and promptly the value of BBU key light mouth 1 address variables A ddress is 1, the value of BBU light mouth 2 address variables A ddress is 2; The length of variables A ddress is selected as follows: select the self-defined word X3 of manufacturer to transmit address variables A ddress, X3 length is 16bit, m=4;
(4) through between BBU and the RRU, one group of interconnected control word is transmitted address variables A ddress between RRU and the RRU; The address variables A ddress that each RRU passes over the upper level RRU that receives or BBU; Address as local RRU; Local RRU upgrades the address variables A ddress value of local corresponding key light slogan according to the address of local each key light slogan and current RRU simultaneously; And be forwarded to next stage RRU to an address variables A ddress who upgrades through corresponding key light mouth, as the address of next stage RRU;
The address variate-value of the key light slogan that upgrades be Address=Address 4+ light slogan,
Therefore, the address of each RRU such as following table:
| The RRU title | RRU address (16 system) |
| RRU0 | 0001 |
| RRU1 | 0011 |
| RRU2 | 0111 |
| RRU3 | 0002 |
| RRU4 | 0021 |
| RRU5 | 0211 |
(5) each RRU reports BBU to address value, and BBU obtains radio remote unit connection relation according to address value after obtaining all RRU addresses automatically.
The CPRI agreement has 256 control words, and wherein the self-defined word of manufacturer can be used for transmitting address variables A ddress of the present invention.
Shown in Figure 4 is under the tree-like networking mode, the address assignment figure of the Remote Radio Unit of the inventive method.When RRU adopted tree-like networking mode, the present invention obtained the method for radio remote unit connection relation automatically, may further comprise the steps:
(1) the key light mouth of the BBU among Fig. 4 is numbered, this BBU has 1 key light mouth, is numbered 1 its ID number;
(2) the key light mouth of each RRU among Fig. 4 is numbered, for 1 key light mouth is arranged, corresponding key light mouth is 1 ID number, and 4 key light mouths are arranged, and corresponding key light mouth is 1,2 ID number, 3,4;
(3) defined variable Address representes the address of RRU, and BBU is according to the numbering of BBU key light mouth, the address variables A ddress of the corresponding BBU key light of initialization mouth, and promptly the value of BBU key light mouth 1 address variables A ddress is 1; The length of variables A ddress is selected as follows: select the self-defined word X3 of manufacturer to transmit address variables A ddress, X3 length is 16bit, m=4;
(4) through between BBU and the RRU, one group of interconnected control word is transmitted address variables A ddress between RRU and the RRU; The address variables A ddress that each RRU passes over the upper level RRU that receives or BBU; Address as local RRU; Local RRU upgrades the address variables A ddress value of local corresponding key light slogan according to the address of local each key light slogan and current RRU simultaneously; And be forwarded to next stage RRU to an address variables A ddress who upgrades through corresponding key light mouth, as the address of next stage RRU;
The address variate-value of the key light slogan that upgrades be Address=Address 4+ light slogan,
Therefore, the address of each RRU such as following table:
| The RRU title | RRU address (16 system) |
| RRU0 | 0001 |
| RRU1 | 0011 |
| RRU2 | 0111 |
| RRU3 | 0021 |
| RRU4 | 0211 |
| RRU5 | 0031 |
| RRU6 | 0311 |
(5) each RRU reports BBU to address value, and BBU obtains radio remote unit connection relation according to address value after obtaining all RRU addresses automatically.
The foregoing description is a preferred implementation of the present invention; But execution mode of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (2)
1. a method of obtaining radio remote unit connection relation automatically is characterized in that, comprises the steps:
(1) the key light mouth of BBU is numbered, be specially: for the BBU with N key light mouth, the key light mouth is numbered 1,2 respectively ID number ..., N;
(2) the key light mouth of each RRU is numbered, be specially: for the RRU with N key light mouth, the key light mouth is numbered 1,2 respectively ID number ..., N;
(3) defined variable Address representes the address of RRU, and BBU is according to the numbering of BBU key light mouth, and the address variables A ddress of the corresponding BBU key light of initialization mouth is specially: the value of the address variables A ddress of BBU key light mouth n is n, wherein, and 1≤n≤N;
(4) through between BBU and the RRU, one group of interconnected control word is transmitted address variables A ddress between RRU and the RRU; The address variables A ddress that each RRU passes over the upper level RRU that receives or BBU; Address as local RRU; Local RRU upgrades the address variables A ddress value of local corresponding key light slogan according to the address of local each key light slogan and current RRU simultaneously; And be forwarded to next stage RRU to an address variables A ddress who upgrades through corresponding key light mouth, as the address of next stage RRU; Its update method is: the address variate-value of the key light slogan of renewal be Address=Address＜＜m+ key light slogan, wherein＜＜expression move to left; M represents the length of each byte;
(5) each RRU reports BBU to address value, and BBU obtains radio remote unit connection relation according to address value after obtaining all RRU addresses automatically.
2. the method for obtaining radio remote unit connection relation automatically according to claim 1 is characterized in that: the length of the said variables A ddress of step (3) is selected the topology decision by real network.
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| CN2008101991542A CN101730088B (en) | 2008-10-15 | 2008-10-15 | Method for automatically acquiring radio remote unit connection relation |
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| CN2008101991542A CN101730088B (en) | 2008-10-15 | 2008-10-15 | Method for automatically acquiring radio remote unit connection relation |
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| CN101730088B true CN101730088B (en) | 2012-08-08 |
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| CN102611492A (en) * | 2011-01-21 | 2012-07-25 | 中兴通讯股份有限公司 | BBU (base band unit), RRU (remote radio unit) and RRU networking method and networking system |
| CN103209185B (en) * | 2013-04-07 | 2016-06-29 | 大唐移动通信设备有限公司 | A kind of transmitting message at optical interface and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1848791A (en) * | 2005-04-12 | 2006-10-18 | 华为技术有限公司 | Method for obtaining tree group network topological structure and address distributing method |
| CN101001264A (en) * | 2006-12-29 | 2007-07-18 | 华为技术有限公司 | Method, device, network edge equipment and addressing server for L1VPN address distribution |
| CN101174981A (en) * | 2007-09-18 | 2008-05-07 | 中兴通讯股份有限公司 | Method for obtaining network appliance address by general common wireless interface |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1848791A (en) * | 2005-04-12 | 2006-10-18 | 华为技术有限公司 | Method for obtaining tree group network topological structure and address distributing method |
| CN101001264A (en) * | 2006-12-29 | 2007-07-18 | 华为技术有限公司 | Method, device, network edge equipment and addressing server for L1VPN address distribution |
| CN101174981A (en) * | 2007-09-18 | 2008-05-07 | 中兴通讯股份有限公司 | Method for obtaining network appliance address by general common wireless interface |
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