CN102611492A - BBU (base band unit), RRU (remote radio unit) and RRU networking method and networking system - Google Patents
BBU (base band unit), RRU (remote radio unit) and RRU networking method and networking system Download PDFInfo
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- CN102611492A CN102611492A CN2011100245043A CN201110024504A CN102611492A CN 102611492 A CN102611492 A CN 102611492A CN 2011100245043 A CN2011100245043 A CN 2011100245043A CN 201110024504 A CN201110024504 A CN 201110024504A CN 102611492 A CN102611492 A CN 102611492A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention discloses a BBU (base band unit), an RRU (remote radio unit) and an RRU networking method and networking system, and provides a network architecture capable of realizing bearer service maximization. The method comprises determining the number of RRUs controlled by a main optical port of BBU as well as the number of RRUs controlled by a spare optical port; configuring a first physical control word according to the number of RRUs controlled by the main optical port, and configuring a second physical control word according to the number of RRUs controlled by the spare optical port; transmitting the first physical control word from the main optical port and transmitting the second physical control word from the spare optical port; determining the uplink optical port of each RRU in a ring network according to the received physical control word, and constructing link with the BBU through the uplink optical port, or switching the constructed link to the determined uplink optical port. The ring network constructed by the method and system provided by the invention can bear services from two directions so as to realize bearer service maximization. In addition, the method can adaptively reorganize a network when fiber fault occurs on one end of the RRU, thereby ensuring service fulfillment.
Description
Technical field
The present invention relates to communication field, be specifically related to network-building method and a kind of group network system of a kind of remote radio unit (RRU) (RRU), baseband processing unit (BBU) and remote radio unit (RRU) (RRU).
Background technology
TD-SCDMA (TD SDMA) network uses the distributed base station framework in a large number; BBU (Building Base band Unite; Baseband processing unit) concentrates placement; The networking mode that RRU (Radio RemoteUnit, remote radio unit (RRU)) zooms out in the strange land adopts optical fiber to connect between BBU and the RRU.A BBU can support a plurality of RRU.The networking mode of RRU has: chain, star-like, these networking modes have only a pair of optical fiber to connect with BBU, do not possess fiber protection function.What the distance between BBU and the RRU had reaches tens kilometers, causes RRU can't normally provide professional usually because optical fiber receives extraneous destruction.
In the TD-SCDMA network; What the interface between BBU and the RRU adopted is IR interface protocol (" the Ir interfacing of 2GHz TD-SCDMA digital mobile cellular telecommunication net distributed base station requires "); Owing to the different and RRU hardware resource reason of Ir interface protocol the inside uplink/downlink frames structure; RRU can only set up link from a light mouth, can not set up two links simultaneously from two light mouths.
The capacity of a 2.5G optical module carrying is 48AxC (antenna carrier) data, and the capacity of a 6G optical module carrying is 120AxC (antenna carrier) data.Along with the development of technology, the RRU capacity is increasing, and the maximum capacity of TD-SCDMA RRU can reach 168AxC now.The capacity of a light mouth far can not satisfy the demands.
Summary of the invention
The technical problem that the present invention will solve provides the network-building method of a kind of remote radio unit (RRU) (RRU), improves the service bearer ability of network.
For solving the problems of the technologies described above, the invention provides the network-building method of a kind of remote radio unit (RRU) (RRU), be applicable to baseband processing unit (BBU) and RRU that annular connects, said method comprises:
Confirm the number of the RRU of BBU key light mouth control, and the number that is equipped with the RRU of light mouth control;
RRU number based on the control of key light mouth disposes the first physics control word, disposes the second physics control word based on the RRU number that is equipped with the control of light mouth;
Send the first physics control word from the key light mouth, send the second physics control word from being equipped with the light mouth;
Each RRU confirms the first line of a couplet light mouth of oneself based on the physics control word that receives in the looped network, and from first line of a couplet light mouth and BBU link setup, or link connection has switched to determined first line of a couplet light mouth.
Further, in the said looped network each RRU from first line of a couplet light mouth and BBU link setup or will link connection have switched to determined first line of a couplet light mouth after, said method also comprises: the antenna carrier data that issue the RRU that belongs to the key light mouth from the key light mouth; Issue the antenna carrier data that belong to the RRU that is equipped with the light mouth from being equipped with the light mouth.
Further, the RRU of said key light mouth control is meant the RRU on the RRU subchain that links to each other with the key light mouth; The said RRU that is equipped with the control of light mouth be meant be equipped with the RRU subchain that the light mouth links to each other on RRU; The said RRU subchain that links to each other with the key light mouth and said be equipped with the RRU subchain that the light mouth links to each other and connect into the RRU chain in the looped network.
Further, when alarm occurring in the said looped network, the RRU of said key light mouth control is meant all RRU of fault prime; When occurring alarm in the said looped network, the said RRU that is equipped with the control of light mouth is meant all RRU of level after the fault.
Further, the said first physics control word comprises: the identification information of the first RRU that is connected with said key light mouth, the RRU range information of key light mouth control, from the key light mouth to the transmission direction information that is equipped with the light mouth; The said second physics control word comprises: with the said identification information that is equipped with the first RRU that the light mouth is connected, be equipped with the RRU range information of light mouth control, from light mouth fully to the transmission direction information of key light mouth.
Further; Each RRU is according to receiving the physics control word in the said looped network; The step of confirming the first line of a couplet light mouth of oneself comprises: meet the following conditions if RRU judges according to the physics control word that receives; It is first line of a couplet optical interface that the optical interface receive this physics control word then is set: said transmission direction information for from the key light mouth to being equipped with the light mouth, and current RRU belongs to the RRU scope of key light mouth control; Perhaps, said transmission direction information is from being equipped with the light mouth to the key light mouth, and current RRU belongs to the RRU scope of light mouth control fully.
Another technical problem that the present invention will solve provides a kind of group network system, and a kind of network that can improve the service bearer ability is provided.
For solving the problems of the technologies described above, the invention provides a kind of group network system, institute's group network comprises baseband processing unit (BBU) and the RRU that annular connects, said system comprises:
First device is used for the number of the RRU of definite BBU key light mouth control, and the number that is equipped with the RRU of light mouth control;
Second device is used for disposing the first physics control word based on the RRU number of key light mouth control, disposes the second physics control word based on the RRU number that is equipped with the control of light mouth;
The 3rd device is used for sending the first physics control word from the key light mouth, sends the second physics control word from being equipped with the light mouth;
The 4th device is positioned on the RRU, is used for confirming the first line of a couplet light mouth of this RRU according to the physics control word that receives, and from first line of a couplet light mouth and BBU link setup, or link connection has switched to determined first line of a couplet light mouth.
Further, said system also comprises the 5th device, is used for issuing from the key light mouth antenna carrier data of the RRU that belongs to the key light mouth; Issue the antenna carrier data that belong to the RRU that is equipped with the light mouth from being equipped with the light mouth.
Further; Said the 4th device is to be used to adopt following mode to confirm the first line of a couplet light mouth of oneself according to receiving the physics control word: meet the following conditions if judge; It is first line of a couplet optical interface that the optical interface receive this physics control word then is set: said transmission direction information for from the key light mouth to being equipped with the light mouth, and current RRU belongs to the RRU scope of key light mouth control; Perhaps, said transmission direction information is from being equipped with the light mouth to the key light mouth, and current RRU belongs to the RRU scope of light mouth control fully.
Another technical problem that the present invention will solve provides a kind of baseband processing unit (BBU) of realizing networking, and a kind of BBU that can realize annular networking is provided.
For solving the problems of the technologies described above, the invention provides a kind of baseband processing unit (BBU) of realizing networking, comprise number determination module, physics control word configuration module and physics control word sending module, wherein:
Said number determination module is used for the number of the RRU of definite BBU key light mouth control, and the number that is equipped with the RRU of light mouth control;
Said physics control word configuration module is used for disposing the first physics control word according to the RRU number of key light mouth control, disposes the second physics control word according to the RRU number that is equipped with the control of light mouth;
Said physics control word sending module is used for sending the first physics control word from the key light mouth, sends the second physics control word from being equipped with the light mouth.
Further, said BBU also comprises data transmission blocks, and it is used for issuing from the key light mouth antenna carrier data of the RRU that belongs to the key light mouth; Issue the antenna carrier data that belong to the RRU that is equipped with the light mouth from being equipped with the light mouth.
Another technical problem that the present invention will solve provides a kind of remote radio unit (RRU) (RRU) of realizing networking, and a kind of RRU that can realize annular networking is provided.
For solving the problems of the technologies described above, the invention provides a kind of remote radio unit (RRU) (RRU) of realizing networking, comprise receiver module, first line of a couplet light mouth determination module and link setup module, wherein:
Said receiver module is used to receive the physics control word that baseband processing unit (BBU) sends;
Said first line of a couplet light mouth determination module is used for the physics control word that receives according to said receiver module, confirms the first line of a couplet light mouth of this RRU;
Said link setup module is used for from determined first line of a couplet light mouth and BBU link setup, or link connection switches to determined first line of a couplet light mouth.
Further, the said first physics control word comprises: the identification information of the first RRU that is connected with said key light mouth, the RRU range information of key light mouth control, from the key light mouth to the transmission direction information that is equipped with the light mouth; The said second physics control word comprises: with the said identification information that is equipped with the first RRU that the light mouth is connected, be equipped with the RRU range information of light mouth control, from light mouth fully to the transmission direction information of key light mouth.
Further, said first line of a couplet light mouth determination module is to be used to adopt following mode according to the physics control word that said receiver module receives, and confirms the first line of a couplet light mouth of this RRU:
If judge to meet the following conditions, then the optical interface that receives this physics control word being set is first line of a couplet optical interface: said transmission direction information for from the key light mouth to being equipped with the light mouth, and current RRU belongs to the RRU scope of key light mouth control; Perhaps, said transmission direction information is from being equipped with the light mouth to the key light mouth, and current RRU belongs to the RRU scope of light mouth control fully.
The present invention proposes the novel networking mode of a kind of RRU: annular networking, promptly RRU connects with BBU through two pairs of optical fiber, and the loop network that adopts the said method and system of the embodiment of the invention to make up can maximize thereby reach bearer service from the both direction bearer service.In addition, when the end fiber failure of RRU, can self adaptation networking again, guarantee business realizing.
Description of drawings
Fig. 1 is 3 grades of RRU annular networking sketch mapes of the embodiment of the invention 1;
Fig. 2 is the networking flow chart of the embodiment of the invention 1;
Fig. 3 is optical fiber 3 fault sketch mapes in 3 grades of RRU looped networks of the embodiment of the invention 2;
Fig. 4 is optical fiber 7 fault sketch mapes in 3 grades of RRU looped networks of the embodiment of the invention 3;
Fig. 5 is the structural representation of BBU of the realization annular networking of the embodiment of the invention 4;
Fig. 6 is the structural representation of RRU of the realization annular networking of the embodiment of the invention 5.
Embodiment
Hereinafter will combine accompanying drawing that embodiments of the invention are elaborated.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
As shown in Figure 1, comprise BBU and some RRU in the looped network, wherein some RRU are linked in sequence step by step and form a RRU chain, and an end RRU of this RRU chain links to each other with the key light mouth of BBU, and other end RRU links to each other with the light mouth that is equipped with of BBU, and this BBU and RRU connect into a circulus.The RRU that links to each other with the key light mouth of BBU can be described as chopped-off head RRU, and the RRU that links to each other with the light mouth fully of BBU can be described as final stage RRU.Key light mouth direction is the prime direction, and being equipped with light mouth direction is back level direction.
Among the figure, the light mouth numbering that light mouth 0 that RRU_A, RRU_B, RRU_C are last and light mouth 1 are RRU; Optical fiber 1, optical fiber 2, optical fiber 3 etc. are the optical fiber numberings; Arrow is represented optical fiber acceptance point Rx, and the arrow tail representes that optical fiber sends some Tx.Fig. 1 is an example with 3 grades of RRU only, and in other embodiments, RRU is not limited to have only 3, can be N level RRU, and N >=1 and N are positive integer, promptly can comprise N RRU in the looped network.
Based on the looped network of above-mentioned connected mode, the BBU network-building method is as shown in Figure 2, comprising:
Particularly, the RRU of above-mentioned key light mouth control is meant the RRU on the RRU subchain that links to each other with the key light mouth; The RRU that is equipped with the control of light mouth be meant be equipped with the RRU subchain that the light mouth links to each other on RRU.RRU subchain that should link to each other with the key light mouth and the RRU subchain that should link to each other with light mouth fully connect into the RRU chain in the looped network.That is to say; RRU chain in the looped network is divided into two subchains, and " division " described herein is meant virtual division, is not disconnecting link; The control of RRU on the subchain that is connected with key light mouth ownership key light mouth is equipped with the light mouth and controls with RRU ownership on being equipped with another subchain that the light mouth is connected.RRU quantity on the subchain does not limit, and can be a RRU, can be two above RRU, can be zero RRU yet.
The preferred mode of mean allocation that adopts is divided subchain, to reach the effect of better load sharing.N RRU for example arranged in the looped network, and with wherein N/2 subchain 1 ownership key light mouth control that RRU forms, subchain 2 ownership that other N-N/2 RRU formed are equipped with the control of light mouth.When RRU add up to odd number, a RRU who has more can belong to the control of key light mouth, also can belong to being equipped with the control of light mouth.
Adopt following formula to calculate definite in the present embodiment:
The number of ownership key light mouth control RRU is calculated by following formula and is obtained:
MainRruNum＝[CfgRruNum/2+0.5]； (1)
Ownership is equipped with the number of light mouth control RRU and calculates acquisition by following formula:
SlaveRruNum＝[CfgRruNum/2]； (2)
Wherein, CfgRruNum is for encircling the number that goes up RRU, and [] expression rounds.
Also can not adopt the mode of dividing equally to distribute in other embodiments; Can arbitrarily dispose as required; 5 RRU are for example arranged on the looped network, the subchain ownership BBU key light mouth control that 1 RRU is wherein formed, the subchain ownership BBU that 4 RRU are wherein formed is equipped with the control of light mouth.
After the number of confirming BBU key light mouth and the RRU that is equipped with each Self Control of light mouth, the AxC data that belong to the RRU of key light mouth will issue from the key light mouth, and belonging to fully, the AxC data of the RRU of light mouth will issue from being equipped with the light mouth.
For the physics control word of key light mouth configuration comprises: the identification information of the first RRU that is connected with the key light mouth, the RRU range information of key light mouth control, from the key light mouth to the transmission direction information of light mouth fully, particularly, available following formula is represented:
First RRU sign (Start RRU the ID)=BBU key light mouth light slogan * 16+1 that is connected with the key light mouth; RRU scope (RRU ID the RANGE)=Start RRU ID+MainRruNum-1 of key light mouth control; Link indication (Link Ind) is that transmission direction information is for adding 1;
For the physics control word that is equipped with the configuration of light mouth comprises: the identification information with being equipped with the first RRU that the light mouth is connected, be equipped with the RRU range information of light mouth control, from the light mouth is to the transmission direction information of key light mouth fully, particularly, available following formula is represented:
Be equipped with first RRU that the light mouth is connected and identify (Start RRU ID)=BBU and be equipped with the total progression of RRU in the light mouth light slogan * 16+ looped network (for example 15); RRU scope (RRU ID the RANGE)=Start RRU ID+1-SlaveRruNum that is equipped with the control of light mouth; Link indication (Link Ind) is that transmission direction information is for subtracting 1.
According to the regulation in the standard, the RRU sign is made up of 8 bits, and wherein high 4 is BBU light slogan, and low four is the progression of RRU.Usually, RRU has 15 grades at most, and the progression of the first RRU that is connected with the key light mouth (being chopped-off head RRU) is 1, is 15 with the progression that is equipped with the first RRU (being final stage RRU) that the light mouth is connected.
Be that unit calculates with the decimal system in the above-mentioned formula.
Step 130 is sent as the first physics control word that the key light mouth disposes from the key light mouth, is sent as the second physics control word of light mouth configuration fully from being equipped with the light mouth;
Link setup described herein is meant that RRU and BBU set up link in communication.
Each RRU can receive the physics control word from two light mouths, comprises the physics control word and the physics control word that is equipped with the light mouth of key light mouth.
What the RRU of key light mouth control received is the first physics control word for the configuration of key light mouth, and the RRU of key light mouth control confirms the first line of a couplet light mouth of oneself based on the first physics control word; What be equipped with that the RRU of light mouth control receives is for being equipped with the second physics control word of light mouth configuration, and the RRU that is equipped with the control of light mouth confirms the first line of a couplet light mouth of oneself based on the second physics control word.
If judging according to the physics control word that receives, RRU meets the following conditions; Then the light mouth that receives this physics control word being set is first line of a couplet light mouth: said transmission direction information representation is defeated to being equipped with the light oral instructions from the key light mouth, and current RRU belongs to the RRU scope of key light mouth control; Perhaps, said transmission direction information representation is defeated to the key light oral instructions from being equipped with the light mouth, and current RRU belongs to the RRU scope of light mouth control fully.
RRU confirms that first line of a couplet light mouth is for from first line of a couplet light mouth and BBU link setup.In other embodiments, RRU also can confirm second line of a couplet light mouth earlier, and behind definite second line of a couplet light mouth, another light mouth is first line of a couplet light mouth.
RRU confirms second line of a couplet light mouth in the following ways: meet the following conditions if RRU judges according to the physics control word that receives; Then the light mouth that receives this physics control word being set is second line of a couplet light mouth: said transmission direction information is represented from the key light mouth defeated to being equipped with the light oral instructions, and current RRU does not belong to the RRU scope of key light mouth control; Perhaps, said transmission direction information is represented from being equipped with the light mouth defeated to the key light oral instructions, and current RRU does not belong to the RRU scope of light mouth control fully.
Particularly, in the present embodiment, can adopt following formula:
Meet the following conditions if RRU judges, then the light mouth that receives this physics control word being set is first line of a couplet light mouth:
Link Ind is for adding 1, and current RRU sign (RRU ID)≤key light mouth RRU ID RANGE; Perhaps, Link Ind is for subtracting 1, and current RRU ID>=be equipped with light mouth RRU ID RANGE;
Meet the following conditions if RRU judges, then the light mouth that receives this physics control word being set is second line of a couplet light mouth:
Link Ind is for adding 1, and current RRU ID>key light mouth RRU ID RANGE; Perhaps, Link Ind is for subtracting 1, and current RRU ID < is equipped with light mouth RRU ID RANGE.
If RRU is link setup, then RRU arrives new first line of a couplet light mouth to link switchover; If RRU is link setup not, then RRU is at new first line of a couplet light mouth link setup.First line of a couplet light mouth is the link setup light mouth of RRU, also is used to carry the AxC data; Second line of a couplet light mouth is used for transparent transmission.
After above-mentioned link setup process finishes, BBU will reconfigure AxC exchange configuration and optical-fiber time-delay value to RRU on new link setup light mouth.
Present embodiment is applicable to the upward all trouble-free scene of all Fiber Nodes of ring, the looped network when perhaps initially powering on.Network-building method when alarm occurring is to confirm in the step 110 BBU with the difference of above-mentioned network-building method, and upward the key light mouth is different with the computational methods of the number of the RRU that is equipped with each Self Control of light mouth, referring to the description among the embodiment 2.
Embodiment 2
Present embodiment detects the scene of alarm based on BBU or RRU.When alarm occurring; Again the flow process among the method for networking and the embodiment 1 is similar; Difference is, on confirming BBU, during the number of key light mouth and the RRU that is equipped with each Self Control of light mouth, do not rely on the calculating of above-mentioned formula (1) and formula (2); But with fault optical fiber or malfunctioning node as empty split point, promptly confirm the number of key light mouth and the RRU that is equipped with each Self Control of light mouth by abort situation.The RRU ownership key light mouth of fault prime, the RRU of level ownership is equipped with the light mouth after the fault.
As shown in Figure 3, RRU_A couples together through optical fiber between RRU_A, RRU_B, the RRU_C through the key light mouth of optical fiber connection BBU, and RRU_C connects the light mouth fully of BBU through optical fiber.The key light slogan of BBU all is 0 with being equipped with the light slogan.
● under all trouble-free situation of all Fiber Nodes on the whole ring, carry out networking, comprising:
Step 210, calculate and confirm that BBU goes up the number of key light mouth and the RRU that is equipped with each Self Control of light mouth:
CfgRruNum=3, then: the RRU number M ainRruNum=[CfgRruNum/2+0.5]=2 of ownership key light mouth; Ownership is equipped with the RRU number SlaveRruNum=[CfgRruNum/2]=1 of light mouth.
Step 220, respectively active and standby light mouth is carried out the configuration of physics control word:
In the present embodiment, the light slogan of BBU key light mouth is 0, and the light slogan that is equipped with the light mouth also is 0.
The physics control word configuration of key light mouth: Start RRU ID=1, RRU ID RANGE=2, LinkInd is for adding 1;
Be equipped with the physics control word configuration of light mouth: Start RRU ID=15, RRU ID RANGE=15, LinkInd is for subtracting 1.
Step 230 is sent as the first physics control word that the key light mouth disposes from the key light mouth, is sent as the second physics control word of light mouth configuration fully from being equipped with the light mouth;
Step 240, each RRU confirms first line of a couplet light mouth separately based on receiving the physics control word, from first line of a couplet light mouth and BBU link setup:
RRU_A receives the physics control word from light mouth 0, judges Link Ind for adding 1, and its RRUID (1)≤RRU ID RANGE (2), and then RRU_A is provided with light mouth 0 and is first line of a couplet light mouth, follows the BBU link setup from light mouth 0; RRU_A is transmitted to RRU_B to new physics control word after RRU ID is added 1;
RRU_B receives the physics control word from light mouth 0, judges Link Ind for adding 1, and its RRUID (2)≤RRU ID RANGE (2), and then RRU_B is provided with light mouth 0 and is first line of a couplet light mouth, follows the BBU link setup from light mouth 0;
RRU_C receives the physics control word from light mouth 1, judges Link Ind for subtracting 1, and its RRUID (15) >=RRU ID RANGE (15), and then RRU_C is provided with light mouth 1 and is first line of a couplet light mouth, follows the BBU link setup from light mouth 1.
● when optical fiber 3 faults, when RRU_B detects LOP (luminous power is lost) alarm of indexed optical fiber 3 faults, give BBU with alarm report, BBU carries out networking again, comprising:
Step 310, recomputate and confirm that BBU goes up the number of key light mouth and the RRU that is equipped with each Self Control of light mouth:
When alarm occurring in the looped network, the RRU of key light mouth control is meant all RRU of fault prime; The RRU that is equipped with the control of light mouth is meant all RRU of level after the fault.
Said fault comprises fiber failure or RRU fault.Alarm in the above-mentioned looped network comprises the LOP alarm that fiber failure causes, and the communication link that the RRU node failure causes is alarmed.
The RRU_A of optical fiber 3 primes will belong to key light mouth, i.e. MainRruNum=1; The RRU_B of optical fiber 3 back levels and RRU_C will belong to and be equipped with light mouth, i.e. SlaveRruNum=2.
Step 320, carry out active and standby light mouth physics control word configuration again:
The physics control word configuration of key light mouth: Start RRU ID=1, RRU ID RANGE=1, LinkInd is for adding 1;
Be equipped with the physics control word configuration of light mouth: Start RRU ID=15, RRU ID RANGE=14, LinkInd is for subtracting 1.
Step 330 is sent as the physics control word that the key light mouth disposes from the key light mouth, is sent as the physics control word of light mouth configuration fully from being equipped with the light mouth;
Step 340, each RRU confirms first line of a couplet light mouth separately based on receiving the physics control word, from first line of a couplet light mouth and BBU link setup:
RRU_A receives the physics control word from light mouth 0, judges Link Ind for adding 1, and its RRUID (1)≤RRU ID RANGE (1), and then RRU_A is provided with light mouth 0 and is first line of a couplet light mouth, follows the BBU link setup from light mouth 0, and is consistent with link setup light slogan before;
RRU_C receives the physics control word from light mouth 1, judges Link Ind for subtracting 1, and its RRUID (15) >=RRU ID RANGE (14), and then RRU_C is provided with light mouth 1 and is first line of a couplet light mouth, follows the BBU link setup from light mouth 1, and is consistent with link setup light slogan before; RRU_C is transmitted to RRU_B to new physics control word after RRU ID is subtracted 1;
RRU_B receives the physics control word from light mouth 1, judges Link Ind for subtracting 1, and its RRUID (14) >=RRU ID RANGE (14); Then RRU_B is provided with light mouth 1 and is first line of a couplet light mouth; With the BBU link setup, inconsistent with link setup light mouth 0 before, RRU_B switches to light mouth 1 to link and business from light mouth 1.
Step 350, BBU reconfigures AxC exchange configuration and optical-fiber time-delay value for RRU_A, RRU_B, RRU_C.
Embodiment 3
Present embodiment is that example describes with another fiber failure.As shown in Figure 4, when optical fiber 7 faults, after BBU detects the LOP alarm; Again carry out networking; Calculate new empty split point, confirm that BBU goes up key light mouth and the RRU that is equipped with each Self Control of light mouth: RRU_A, RRU_B and the RRU_C of optical fiber 7 primes will belong to key light mouth, i.e. MainRruNum=3; Optical fiber 7 back level no RRU, i.e. SlaveRruNum=0.All the other flow processs are the same, repeat no more here.
Embodiment 4
Present embodiment is described the group network system of realizing the foregoing description method, and this network comprises BBU and the RRU that annular connects, and this system comprises:
First device is used for the number of the RRU of definite BBU key light mouth control, and the number that is equipped with the RRU of light mouth control;
Second device is used for disposing the first physics control word based on the RRU number of key light mouth control, disposes the second physics control word based on the RRU number that is equipped with the control of light mouth;
The 3rd device is used for sending the first physics control word from the key light mouth, sends the second physics control word from being equipped with the light mouth;
The 4th device is positioned on the RRU, is used for confirming the first line of a couplet light mouth of this RRU according to the physics control word that receives, and from first line of a couplet light mouth and BBU link setup, or link connection has switched to determined first line of a couplet light mouth.
Preferably,
Said system also comprises the 5th device, is used for issuing from the key light mouth antenna carrier data of the RRU that belongs to the key light mouth; Issue the antenna carrier data that belong to the RRU that is equipped with the light mouth from being equipped with the light mouth.
Preferably,
Said the 4th device is to be used to adopt following mode to confirm the first line of a couplet light mouth of oneself according to receiving the physics control word:
If judge to meet the following conditions, then the optical interface that receives this physics control word being set is first line of a couplet optical interface: said transmission direction information for from the key light mouth to being equipped with the light mouth, and current RRU belongs to the RRU scope of key light mouth control; Perhaps, said transmission direction information is from being equipped with the light mouth to the key light mouth, and current RRU belongs to the RRU scope of light mouth control fully.
Embodiment 5
Present embodiment is described the BBU that realizes annular networking, and is as shown in Figure 5, comprises number determination module, physics control word configuration module and physics control word sending module, wherein:
The number determination module is used for the number of the RRU of definite BBU key light mouth control, and the number that is equipped with the RRU of light mouth control;
Physics control word configuration module is used for disposing the first physics control word according to the RRU number of key light mouth control, disposes the second physics control word according to the RRU number that is equipped with the control of light mouth;
Physics control word sending module is used for sending the first physics control word from the key light mouth, sends the second physics control word from being equipped with the light mouth.
Preferably, above-mentioned BBU also comprises data transmission blocks, and it is used for issuing from the key light mouth antenna carrier data of the RRU that belongs to the key light mouth; Issue the antenna carrier data that belong to the RRU that is equipped with the light mouth from being equipped with the light mouth.
Above-mentioned number determination module, physics control word configuration module, physics control word sending module, data transmission blocks are identical with the 5th device respectively at first device, second device, the 3rd device of embodiment 4.
The RRU of above-mentioned key light mouth control is meant the RRU on the RRU subchain that links to each other with the key light mouth; The RRU that is equipped with the control of light mouth be meant be equipped with the RRU subchain that the light mouth links to each other on RRU; The RRU subchain that links to each other with the key light mouth and be equipped with the RRU subchain that the light mouth links to each other and connect into the RRU chain in the looped network.
When alarm occurring in the looped network, the RRU of key light mouth control is meant all RRU of fault prime; The RRU that is equipped with the control of light mouth is meant all RRU of level after the fault.
Embodiment 6
Embodiment describes the RRU that realizes annular networking, comprises receiver module, first line of a couplet light mouth determination module and link setup module, wherein:
Said receiver module is used to receive the physics control word that BBU sends;
Said first line of a couplet light mouth determination module is used for the physics control word that receives according to said receiver module, confirms the first line of a couplet light mouth of this RRU;
Said link setup module is used for from determined first line of a couplet light mouth and BBU link setup, or link connection switches to determined first line of a couplet light mouth.
Above-mentioned receiver module, first line of a couplet light mouth determination module and link setup module are formed the 4th device described in the embodiment 4 jointly.
The above-mentioned first physics control word comprises: the identification information of the first RRU that is connected with said key light mouth, the RRU range information of key light mouth control, from the key light mouth to the transmission direction information that is equipped with the light mouth; The second physics control word comprises: with the said identification information that is equipped with the first RRU that the light mouth is connected, be equipped with the RRU range information of light mouth control, from light mouth fully to the transmission direction information of key light mouth.
Above-mentioned first line of a couplet light mouth determination module is to be used to adopt following mode according to the physics control word that said receiver module receives, and confirms the first line of a couplet light mouth of this RRU:
If judge to meet the following conditions, then the optical interface that receives this physics control word being set is first line of a couplet optical interface: said transmission direction information for from the key light mouth to being equipped with the light mouth, and current RRU belongs to the RRU scope of key light mouth control; Perhaps, said transmission direction information is from being equipped with the light mouth to the key light mouth, and current RRU belongs to the RRU scope of light mouth control fully.
In other embodiments, first line of a couplet light mouth determination module also can be confirmed the second line of a couplet light mouth of RRU earlier, confirms the first line of a couplet light mouth of RRU again based on second line of a couplet light mouth, can not give unnecessary details referring to the description of method embodiment here.
Use method of the present invention, can make RRU accomplish Hot Spare, and all under the non-failure conditions, use empty split point at whole ring, let RRU from BBU active and standby both sides link setup and bearer service, the mode through load sharing reaches the loaded service maximum capacity.
The method that the present invention proposes is easy to expand to the radio frequency unit networking of other standard.
Meaning of the present invention is to have solved simply and effectively TD-SCDMA RRU can accomplish Hot Spare, and can reach the loaded service maximum capacity through the mode of load sharing.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said program can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize.Correspondingly, each the module/unit in the foregoing description 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; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (19)
1. the network-building method of a remote radio unit (RRU) (RRU) is applicable to baseband processing unit (BBU) and RRU that annular connects, and said method comprises:
Confirm the number of the RRU of BBU key light mouth control, and the number that is equipped with the RRU of light mouth control;
RRU number based on the control of key light mouth disposes the first physics control word, disposes the second physics control word based on the RRU number that is equipped with the control of light mouth;
Send the first physics control word from the key light mouth, send the second physics control word from being equipped with the light mouth;
Each RRU confirms the first line of a couplet light mouth of oneself based on the physics control word that receives in the looped network, and from first line of a couplet light mouth and BBU link setup, or link connection has switched to determined first line of a couplet light mouth.
2. the method for claim 1 is characterized in that:
In the said looped network each RRU from first line of a couplet light mouth and BBU link setup or will link connection have switched to determined first line of a couplet light mouth after, said method also comprises:
Issue the antenna carrier data of the RRU that belongs to the key light mouth from the key light mouth; Issue the antenna carrier data that belong to the RRU that is equipped with the light mouth from being equipped with the light mouth.
3. the method for claim 1 is characterized in that:
The RRU of said key light mouth control is meant the RRU on the RRU subchain that links to each other with the key light mouth;
The said RRU that is equipped with the control of light mouth be meant be equipped with the RRU subchain that the light mouth links to each other on RRU;
The said RRU subchain that links to each other with the key light mouth and said be equipped with the RRU subchain that the light mouth links to each other and connect into the RRU chain in the looped network.
4. the method for claim 1 is characterized in that:
When alarm occurring in the said looped network, the RRU of said key light mouth control is meant all RRU of fault prime;
When occurring alarm in the said looped network, the said RRU that is equipped with the control of light mouth is meant all RRU of level after the fault.
5. like claim 1 or 2 or 3 or 4 described methods, it is characterized in that:
The said first physics control word comprises: the identification information of the first RRU that is connected with said key light mouth, the RRU range information of key light mouth control, from the key light mouth to the transmission direction information that is equipped with the light mouth;
The said second physics control word comprises: with the said identification information that is equipped with the first RRU that the light mouth is connected, be equipped with the RRU range information of light mouth control, from light mouth fully to the transmission direction information of key light mouth.
6. method as claimed in claim 5 is characterized in that:
Each RRU confirms that according to receiving the physics control word step of the first line of a couplet light mouth of oneself comprises in the said looped network:
Meet the following conditions if RRU judges according to the physics control word that receives, then the optical interface that receives this physics control word being set is first line of a couplet optical interface:
Said transmission direction information be from the key light mouth to being equipped with the light mouth, and current RRU belongs to the RRU scope of key light mouth control; Perhaps, said transmission direction information is from being equipped with the light mouth to the key light mouth, and current RRU belongs to the RRU scope of light mouth control fully.
7. group network system, institute's group network comprise baseband processing unit (BBU) and the remote radio unit (RRU) (RRU) that annular connects, and said system comprises:
First device is used for the number of the RRU of definite BBU key light mouth control, and the number that is equipped with the RRU of light mouth control;
Second device is used for disposing the first physics control word based on the RRU number of key light mouth control, disposes the second physics control word based on the RRU number that is equipped with the control of light mouth;
The 3rd device is used for sending the first physics control word from the key light mouth, sends the second physics control word from being equipped with the light mouth;
The 4th device is positioned on the RRU, is used for confirming the first line of a couplet light mouth of this RRU according to the physics control word that receives, and from first line of a couplet light mouth and BBU link setup, or link connection has switched to determined first line of a couplet light mouth.
8. group network system as claimed in claim 7 is characterized in that:
Said system also comprises the 5th device, is used for issuing from the key light mouth antenna carrier data of the RRU that belongs to the key light mouth; Issue the antenna carrier data that belong to the RRU that is equipped with the light mouth from being equipped with the light mouth.
9. group network system as claimed in claim 7 is characterized in that:
The RRU of said key light mouth control is meant the RRU on the RRU subchain that links to each other with the key light mouth;
The said RRU that is equipped with the control of light mouth be meant be equipped with the RRU subchain that the light mouth links to each other on RRU;
The said RRU subchain that links to each other with the key light mouth and said be equipped with the RRU subchain that the light mouth links to each other and connect into the RRU chain in the looped network.
10. group network system as claimed in claim 7 is characterized in that:
When alarm occurring in the said looped network, the RRU of said key light mouth control is meant all RRU of fault prime;
When occurring alarm in the said looped network, the said RRU that is equipped with the control of light mouth is meant all RRU of level after the fault.
11., it is characterized in that like claim 7 or 8 or 9 or 10 described group network systems:
The said first physics control word comprises: the identification information of the first RRU that is connected with said key light mouth, the RRU range information of key light mouth control, from the key light mouth to the transmission direction information that is equipped with the light mouth;
The said second physics control word comprises: with the said identification information that is equipped with the first RRU that the light mouth is connected, be equipped with the RRU range information of light mouth control, from light mouth fully to the transmission direction information of key light mouth.
12. group network system as claimed in claim 11 is characterized in that:
Said the 4th device is to be used to adopt following mode to confirm the first line of a couplet light mouth of oneself according to receiving the physics control word:
If judge to meet the following conditions that then the optical interface that receives this physics control word being set is first line of a couplet optical interface:
Said transmission direction information be from the key light mouth to being equipped with the light mouth, and current RRU belongs to the RRU scope of key light mouth control; Perhaps, said transmission direction information is from being equipped with the light mouth to the key light mouth, and current RRU belongs to the RRU scope of light mouth control fully.
13. a baseband processing unit (BBU) of realizing networking comprises number determination module, physics control word configuration module and physics control word sending module, wherein:
Said number determination module is used for the number of the RRU of definite BBU key light mouth control, and the number that is equipped with the RRU of light mouth control;
Said physics control word configuration module is used for disposing the first physics control word according to the RRU number of key light mouth control, disposes the second physics control word according to the RRU number that is equipped with the control of light mouth;
Said physics control word sending module is used for sending the first physics control word from the key light mouth, sends the second physics control word from being equipped with the light mouth.
14. BBU as claimed in claim 13 is characterized in that:
Said BBU also comprises data transmission blocks, and it is used for issuing from the key light mouth antenna carrier data of the RRU that belongs to the key light mouth; Issue the antenna carrier data that belong to the RRU that is equipped with the light mouth from being equipped with the light mouth.
15. BBU as claimed in claim 13 is characterized in that:
The RRU of said key light mouth control is meant the RRU on the RRU subchain that links to each other with the key light mouth;
The said RRU that is equipped with the control of light mouth be meant be equipped with the RRU subchain that the light mouth links to each other on RRU;
The said RRU subchain that links to each other with the key light mouth and said be equipped with the RRU subchain that the light mouth links to each other and connect into the RRU chain in the looped network.
16. BBU as claimed in claim 13 is characterized in that:
When alarm occurring in the said looped network, the RRU of said key light mouth control is meant all RRU of fault prime;
When occurring alarm in the said looped network, the said RRU that is equipped with the control of light mouth is meant all RRU of level after the fault.
17. a remote radio unit (RRU) (RRU) of realizing networking comprises receiver module, first line of a couplet light mouth determination module and link setup module, wherein:
Said receiver module is used to receive the physics control word that baseband processing unit (BBU) sends;
Said first line of a couplet light mouth determination module is used for the physics control word that receives according to said receiver module, confirms the first line of a couplet light mouth of this RRU;
Said link setup module is used for from determined first line of a couplet light mouth and BBU link setup, or link connection switches to determined first line of a couplet light mouth.
18. RRU as claimed in claim 17 is characterized in that:
The said first physics control word comprises: the identification information of the first RRU that is connected with said key light mouth, the RRU range information of key light mouth control, from the key light mouth to the transmission direction information that is equipped with the light mouth;
The said second physics control word comprises: with the said identification information that is equipped with the first RRU that the light mouth is connected, be equipped with the RRU range information of light mouth control, from light mouth fully to the transmission direction information of key light mouth.
19. RRU as claimed in claim 18 is characterized in that:
Said first line of a couplet light mouth determination module is to be used to adopt following mode according to the physics control word that said receiver module receives, and confirms the first line of a couplet light mouth of this RRU:
If judge to meet the following conditions that then the optical interface that receives this physics control word being set is first line of a couplet optical interface:
Said transmission direction information be from the key light mouth to being equipped with the light mouth, and current RRU belongs to the RRU scope of key light mouth control; Perhaps, said transmission direction information is from being equipped with the light mouth to the key light mouth, and current RRU belongs to the RRU scope of light mouth control fully.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100245043A CN102611492A (en) | 2011-01-21 | 2011-01-21 | BBU (base band unit), RRU (remote radio unit) and RRU networking method and networking system |
| PCT/CN2011/081871 WO2012097627A1 (en) | 2011-01-21 | 2011-11-07 | Bbu, rru, and networking method and system for rru |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011100245043A CN102611492A (en) | 2011-01-21 | 2011-01-21 | BBU (base band unit), RRU (remote radio unit) and RRU networking method and networking system |
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| CN102611492A true CN102611492A (en) | 2012-07-25 |
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| WO (1) | WO2012097627A1 (en) |
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| CN106454907A (en) * | 2015-08-05 | 2017-02-22 | 普天信息技术有限公司 | Ring network system and fault detecting and recovering method |
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| CN113259009A (en) * | 2020-02-10 | 2021-08-13 | 大唐移动通信设备有限公司 | RHUB, BBU and RHUB cascading type load sharing system and method |
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| CN116566491A (en) * | 2023-07-11 | 2023-08-08 | 南京典格通信科技有限公司 | Self-adaptive time delay adjustment method and device for optical fiber repeater |
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| WO2012097627A1 (en) | 2012-07-26 |
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