CN103607242A - Access method and device for RRU - Google Patents

Access method and device for RRU Download PDF

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Publication number
CN103607242A
CN103607242A CN201310598037.4A CN201310598037A CN103607242A CN 103607242 A CN103607242 A CN 103607242A CN 201310598037 A CN201310598037 A CN 201310598037A CN 103607242 A CN103607242 A CN 103607242A
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rru
bbu
optical switching
optical
sign
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CN201310598037.4A
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CN103607242B (en
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王浩娟
钟显成
徐黎
笪禹
闫小刚
赵亦彤
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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Abstract

The embodiment of the invention discloses an access method and device for an RRU and relates to the field of wireless communication. The access method and device are used for solving the problem that in the prior art, the RRU can not get access under a C-RAN infrastructure. First RRU identification is distributed to the RRU through an optical switching device, access request information which is sent by the RRU and carries the first RRU identification is intercepted through the optical switching device and forwarded to a control device, the control device can transmit an optical interface number, on the side of the optical switching device, of the RRU to a BBU distributed to the RRU through the process that the BBU is distributed to the RRU, and the optical switching device is instructed to perform optical interface internal interconnection, and then the BBU can distribute second RRU identification to the RRU according to the optical interface number, wherein the second RRU identification is used for getting access to the BBU. The problem that the RRU can not get access under the C-RAN infrastructure is solved.

Description

The cut-in method of a kind of RRU and equipment
Technical field
The present invention relates to field wireless communication field, relate in particular to cut-in method and the equipment of a kind of RRU.
Background technology
At conventional wireless Access Network (Radio Access Network, RAN) in framework, baseband processing unit (Building Base band Unit, BBU) and far-end radio frequency units (Radio Remote Unit, RRU) by optical fiber direct, connect in succession, annexation is fixed.Fig. 1 shows under RAN framework, the schematic diagram of RRU access BBU.RRU in search synchronous regime can set up optical fiber link synchronizing process with BBU, after RRU and BBU set up optical fiber link and synchronize, BBU is that RRU distributes a RRU sign (RRU ID), this RRU ID consists of the light slogan of BBU side and the progression that connects RRU on the optical fiber between BBU and RRU, BBU sidelight slogan is numbered by BBU is unified, and the progression that connects RRU on the optical fiber between BBU and RRU automatically generates in RRU ID assigning process; RRU sends the access request message of carrying this RRU ID; BBU resolves this access request message, is the configuration informations such as RRU distributing IP address, RRU access passage, and above-mentioned configuration information is sent to RRU; RRU completes the configuration of RRU according to configuration information, the communication link between foundation and BBU, and follow-up communication all will be carried out on this communication link, and namely, RRU enters normal operating conditions.
Green wireless access network (Clean Radio Access Network, C-RAN) be to process (Centralized Processing) based on centralization, collaboration type radio (Collaborative Radio) and the in real time green wireless access network framework (Clean system) of cloud computing framework (Real-time Cloud Infrastructure).
The distributed wireless networks that C-RAN framework is mainly comprised of RRU and antenna, the optical transport network that possesses high bandwidth, low delay connects RRU, and centralized baseband pool three parts of general processor and real-time virtual technology composition form.
Fig. 2 shows under C-RAN framework, the schematic diagram of RRU access.In C-RAN framework, baseband pool (Virtual BS Pool) base stations unitedly consists of a plurality of.The core of C-RAN framework is the BBU based on distributed RRU and centralization, in order to make RRU can be linked into dynamically certain BBU in baseband pool, between baseband pool and RRU, increase optical switching network, the optical fiber that connects baseband pool is all linked in optical switching network with the optical fiber that is connected RRU, and unlike passing through fiber direct connection between the base station in traditional RAN framework and RRU, so between BBU and RRU, no longer possesses direct corresponding relation.After RRU access optical transport network, by control appliance, be a BBU of this RRU distribution.
In C-RAN framework, corresponding relation between BBU and RRU is by control appliance dynamic assignment, BBU cannot obtain the associated fiber link access information (as the light slogan of optical fiber switching network side and optical fiber progression) of the RRU of this BBU of access, and therefore, BBU cannot complete the access procedure of RRU.
Summary of the invention
The embodiment of the present invention provides cut-in method and the equipment of a kind of RRU, in order to realize the access of RRU under C-RAN framework.
A cut-in method of far-end wireless radio remote unit RRU, comprising:
Optical switching device is set up optical fiber link with RRU and is synchronizeed, and according to described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side, be that described RRU distributes a RRU sign;
Optical switching device receives the access request message that described RRU sends, and carries a described RRU sign in described access request message, and described optical switching device is transmitted to control appliance by described access request message, to trigger described control appliance, carries out following operation:
According to a described RRU sign determine described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side;
For described RRU allocation base tape cell BBU;
Using BBU the light slogan of described optical switching device side as RRU the light slogan in described BBU side, according to described BBU at the light slogan of described optical switching device side and described RRU the light slogan in described optical switching device side, indicate described optical switching device that described RRU and described BBU are carried out to optical interface intraconnection, and by the operation of described optical interface intraconnection trigger described BBU according to described RRU at the light slogan of described BBU side and described RRU the optical fiber progression at described BBU, for described RRU distributes the 2nd RRU sign, described RRU is according to the described BBU of described the 2nd RRU sign access.
From such scheme, can find out, optical switching device is only realized the optical interface of RRU and the operation of the optical interface intraconnection of BBU, solved under C-RAN framework, the problem that RRU cannot access, on the other hand, optical switching device does not participate in the process of RRU access BBU, does not participate in follow-up RRU and BBU data interaction yet and processes, and is convenient to the follow-up common apparatus that is evolved to ethernet switching device or other switching equipment.
Preferably, between described optical switching device and described control appliance, by ethernet link, be connected; Described optical switching device is transmitted to control appliance by ethernet link by described access request message.Like this, control appliance can be connected with optical switching device by general Ethernet interface, is convenient to control appliance optical switching device is managed for configuration.
Preferably, described RRU sends after described access request message, if do not receive response message in setting duration, again sends access request message, carries described the 2nd RRU sign in the described access request message again sending; Described RRU receives described BBU according to after the described again response message that the access request message of transmission is returned, and obtaining the described BBU carrying in described response message is the IP address that described RRU distributes, and uses described IP address and described BBU to set up communication link.
From such scheme, can find out, the embodiment of the present invention is without RRU is transformed, but utilize the access request of RRU without response timeout retransmission mechanism, can make RRU after access request is without response timeout, what in the access request message again sending, carry is the 2nd RRU sign, access BBU, gets final product smooth evolution to C-RAN baseband pool framework.
Preferably, a described RRU sign comprise described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side, described the 2nd RRU sign comprise described RRU at the light slogan of described BBU side and RRU the optical fiber progression in described BBU side.
From such scheme, can find out, the embodiment of the present invention is without transforming BBU, without improving BBU, is also the process that RRU distributes RRU sign, can complete RRU access procedure, can smooth evolution to C-RAN baseband pool framework.
A cut-in method of far-end wireless radio remote unit RRU, comprising:
Control appliance receives the access request message that optical switching device forwards, in described access request message, carry a RRU sign of RRU, a described RRU sign is described optical switching device when described RRU sets up optical fiber link and synchronizes, according to described RRU at the light slogan of described optical switching device side and described RRU optical fiber progression in described optical switching device side, for described RRU distributes;
Described control appliance is according to a described RRU sign, determine described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side, for described RRU allocation base tape cell BBU, using BBU the light slogan of described optical switching device side as RRU the light slogan in described BBU side, according to described BBU at the light slogan of described optical switching device side and described RRU the light slogan in described optical switching device side, indicate described optical switching device that described RRU and described BBU are carried out to optical interface intraconnection, and by the operation of described optical interface intraconnection trigger described BBU according to described RRU at the light slogan of described BBU side and described RRU the optical fiber progression in described BBU side, for described RRU distributes the 2nd RRU sign, described RRU is according to the described BBU of described the 2nd RRU sign access.
From such scheme, can find out, control appliance does not participate in the process of RRU access, and control appliance manages optical switching device, and for RRU distributes BBU, has solved under C-RAN framework the problem that RRU cannot access.
Preferably, between described control appliance and described optical switching device, by ethernet link, be connected; Control appliance passes through ethernet link, described BBU is sent to optical switching device at light slogan and the described RRU of described optical switching device side at the light slogan of described optical switching device side, to indicate described optical switching device that described RRU and described BBU are carried out to optical interface intraconnection.Like this, control appliance can be connected with optical switching device by general Ethernet interface, is convenient to control appliance optical switching device is managed for configuration.
Preferably, according to the load of each BBU in baseband pool, for described RRU distributes BBU.Like this, control appliance can be grasped the resource service condition of whole baseband pool in real time, and is that RRU distributes BBU according to load balancing principle.
Preferably, described RRU sends after described access request message, if do not receive response message in setting duration, again sends access request message, carries described the 2nd RRU sign in the described access request message again sending; Described RRU receives described BBU according to after the described again response message that the access request message of transmission is returned, and obtaining the described BBU carrying in described response message is the IP address that described RRU distributes, and uses described IP address and described BBU to set up communication link.
From such scheme, can find out, the embodiment of the present invention is without RRU is transformed, but utilize the access request of RRU without response timeout retransmission mechanism, can make RRU after access request is without response timeout, what in the access request message again sending, carry is the 2nd RRU sign, access BBU, gets final product smooth evolution to C-RAN baseband pool framework.
Preferably, a described RRU sign comprise RRU at the light slogan of described optical switching device side and RRU the optical fiber progression in described optical switching device side, described the 2nd RRU sign comprise RRU at the light slogan of described BBU side and RRU the optical fiber progression in described BBU side.
From such scheme, can find out, the embodiment of the present invention is without transforming BBU, without improving BBU, is also the process that RRU distributes RRU sign, can complete RRU access procedure, can smooth evolution to C-RAN baseband pool framework.
An optical switching device, this equipment comprises:
Lock unit, synchronizes for setting up optical fiber link with RRU, and according to described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side, be that described RRU distributes a RRU sign;
Retransmission unit, the access request message sending for receiving described RRU, in described access request message, carry a described RRU sign, and described access request message is transmitted to control appliance, to trigger described control appliance, carry out following operation: according to a described RRU sign, determine that described RRU is at the light slogan of described optical switching device side and the optical fiber progression of described RRU; For described RRU allocation base tape cell BBU; According to described BBU at the light slogan of described optical switching device side and described RRU the light slogan in described optical switching device side, indicate described optical switching device that described RRU and described BBU are carried out to optical interface intraconnection, and by the operation of described optical interface intraconnection trigger described BBU according to described RRU at the light slogan of described BBU side and described RRU the optical fiber progression in described BBU side, for described RRU distributes the 2nd RRU sign, described RRU is according to the described BBU of described the 2nd RRU sign access.
From such scheme, can find out, optical switching device is only realized the optical interface of RRU and the operation of the optical interface intraconnection of BBU, solved under C-RAN framework, the problem that RRU cannot access, on the other hand, optical switching device does not participate in the process of RRU access BBU, does not participate in follow-up RRU and BBU data interaction yet and processes, and is convenient to the follow-up common apparatus that is evolved to ethernet switching device or other switching equipment.
Preferably, between described retransmission unit and described control appliance, by ethernet link, be connected; Described retransmission unit specifically for, by ethernet link, described access request message is transmitted to control appliance.Like this, control appliance can be connected with optical switching device by general Ethernet interface, is convenient to control appliance optical switching device is managed for configuration.
Preferably, a described RRU sign comprise described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side, described the 2nd RRU sign comprise described RRU at the light slogan of described BBU side and RRU the optical fiber progression in described BBU side.
From such scheme, can find out, the embodiment of the present invention is without transforming BBU, without improving BBU, is also the process that RRU distributes RRU sign, can complete RRU access procedure, can smooth evolution to C-RAN baseband pool framework.
A control appliance, this equipment comprises:
Receiving element, the access request message forwarding for receiving optical switching device, in described access request message, carry a RRU sign of RRU, a described RRU sign is described optical switching device when described RRU sets up optical fiber link and synchronizes, according to described RRU at the light slogan of described optical switching device side and described RRU optical fiber progression in described optical switching device side, for described RRU distributes;
Dispensing unit, for according to a described RRU sign, determine described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side; For described RRU allocation base tape cell BBU; According to described BBU at the light slogan of described optical switching device side and described RRU the light slogan in described optical switching device side, indicate described optical switching device that described RRU and described BBU are carried out to optical interface intraconnection, and by the operation of described optical interface intraconnection trigger described BBU according to described RRU at the light slogan of described BBU side and described RRU the optical fiber progression in described BBU side, for described RRU distributes the 2nd RRU sign, described RRU is according to the described BBU of described the 2nd RRU sign access.
From such scheme, can find out, control appliance does not participate in the process of RRU access, and control appliance manages optical switching device, and for RRU distributes BBU, has solved under C-RAN framework the problem that RRU cannot access.
Preferably, between described retransmission unit and described optical switching device, by ethernet link, be connected; Described dispensing unit specifically for, pass through ethernet link, described BBU is sent to optical switching device at light slogan and the described RRU of described optical switching device side at the light slogan of described optical switching device side, to indicate described optical switching device that described RRU and described BBU are carried out to optical interface intraconnection.Like this, control appliance can be connected with optical switching device by general Ethernet interface, is convenient to control appliance optical switching device is managed for configuration.
Preferably, described dispensing unit specifically for, according to the load of each BBU in baseband pool, be that described RRU distributes BBU.Like this, control appliance can be grasped the resource service condition of whole baseband pool in real time, and is that RRU distributes BBU according to load balancing principle.
Preferably, a described RRU sign comprise RRU at the light slogan of described optical switching device side and RRU the optical fiber progression in described optical switching device side, described the 2nd RRU sign comprise RRU at the light slogan of described BBU side and RRU the optical fiber progression in described BBU side.
From such scheme, can find out, the embodiment of the present invention is without transforming BBU, without improving BBU, is also the process that RRU distributes RRU sign, can complete RRU access procedure, can smooth evolution to C-RAN baseband pool framework.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly introduced, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic flow sheet that in prior art, RRU accesses under RAN framework;
Fig. 2 is C-RAN configuration diagram of the prior art;
Fig. 3 is the overall flow schematic diagram of a kind of RRU access BBU in the embodiment of the present invention;
Fig. 4 is the handling process schematic diagram of optical switching device side in Fig. 3;
Fig. 5 is the schematic flow sheet of control appliance side in Fig. 3;
Fig. 6 is the schematic flow sheet of RRU access procedure in Fig. 3;
Fig. 7 is the structural representation of a kind of optical switching device in the embodiment of the present invention;
Fig. 8 is the structural representation of a kind of control appliance in the embodiment of the present invention.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the present invention is described in further detail, and obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention is applicable to C-RAN framework.Under C-RAN framework, RRU is connected to the BBU in baseband pool by optical switching device; RRU is connected to optical switching device by optical fiber, and the BBU in baseband pool is connected to optical switching device by optical fiber; Control appliance is connected to optical switching device by ethernet link.
In the embodiment of the present invention, by the mode of two sub-distribution RRU signs, by optical switching device, be that RRU distributes a RRU sign, by BBU, is the mode that RRU distributes the 2nd RRU sign, finally make RRU access BBU with the 2nd RRU sign, solved in prior art, under C-RAN framework, RRU cannot access the problem of the BBU in baseband pool.
Below in conjunction with accompanying drawing, the embodiment of the present invention is specifically described.
Referring to Fig. 3, schematic flow sheet for the BBU in RRU access baseband pool in the embodiment of the present invention, Fig. 4 is the handling process schematic diagram of optical switching device in flow process shown in Fig. 3, Fig. 5 is the schematic flow sheet of control appliance in flow process shown in Fig. 3, and Fig. 6 is the handling process schematic diagram of RRU access in flow process shown in Fig. 3.
As shown in Fig. 3, Fig. 4, Fig. 5 or Fig. 6, this flow process can comprise:
Step 31:RRU sets up optical fiber link with optical switching device synchronizes.In optical fiber link process, optical switching device is the light slogan and the optical fiber progression of this RRU in optical switching device side in optical switching device side according to this RRU, is that this RRU distributes RRU ID.For convenience of description, the RRUID here optical switching device being distributed is called RRU ID1.
During specific implementation, RRU is accessed after optical switching device by optical fiber, this RRU and optical switching device carry out optical fiber link synchronizing process.In this process, RRU and optical switching device are by common public radio interface (The Common Public Radio Interface, CPRI) frame transmits, frame rate is 3.84MHz, at every frame frame head, has a synchronous code K28.5(BCH), recipient detects synchronous code, if continuous three frames of recipient detect synchronous code, think that to have set up optical fiber link synchronous, otherwise think step-out, and re-start optical fiber link and synchronously detect.It should be noted that, when optical switching device and RRU set up optical fiber link synchronous after, between optical switching device and RRU, by CPRI frame, transmit.
Wherein, RRU is that optical switching device issues to RRU by CPRI at the light slogan of optical switching device side, and this light slogan is defined by optical switching device, is carried on the ad-hoc location of CPRI frame by optical switching device.
First order RRU is distributed by optical switching device at the optical fiber progression of optical switching device side, and is transferred to first order RRU by CPRI frame, by the mode increasing progressively or successively decrease, calculates next stage RRU at the optical fiber progression of optical switching device side.
Optical switching device can be according to the rule of system definition, and the light slogan accessing according to the optical fiber of this RRU and this RRU are at the optical fiber progression of optical switching device side, for this RRU distributes RRU ID.Such as, if according to existing rule, RRU ID consists of at the optical fiber progression of optical switching device side at light slogan and the RRU of optical switching device side RRU.
Optical switching device can send to this RRU by the RRU ID distributing for this RRU by CPRI frame.
Step 32:RRU sends access request message with the forms of broadcasting, to ask to access BBU, carries the RRU ID1 that in step 51, optical fiber switching equipment distributes for this RRU in this access request message.
Step 33: optical switching device is intercepted and captured the access request message that RRU sends, and is transmitted to control appliance.
During specific implementation, optical switching device intercepts after the access request message of RRU transmission, to RRU, does not send response message, makes RRU keep the state of response message; Optical switching device is transmitted to control appliance by ethernet link by access request message.
Step 34~35: control appliance receives after the access request message that the optical switching device of this RRU forwards, and be that this RRU distributes BBU, and pilot light switching equipment is by this BBU and optical interface intraconnection corresponding to this RRU.
In this step, control appliance receives after access request message, according to the RRU ID1 wherein carrying, can obtain this RRU at the light slogan of optical switching device side and this RRU the optical fiber progression in optical switching device side.Control appliance can be according to the loading condition of each BBU in baseband pool, based on load balancing principle, be a BBU of this RRU distribution, and pilot light switching equipment carries out optical interface intraconnection at light mouth and this BBU of optical switching device side at the light mouth of optical switching device side by this RRU, namely, by optical switching network, RRU is connected with BBU.Certainly, control appliance also can be according to other rules for this RRU distribution BBU, such as available BBU of Random assignment.It should be noted that, because RRU is connected by optical switching network with BBU, above-mentioned BBU can be equivalent to RRU at the light slogan of BBU side at the light slogan of optical switching device side.
When specific implementation, control appliance can be by this RRU at the light slogan of optical switching device side and this RRU the optical fiber progression in optical switching device side, and the identification information of the BBU distributing for this RRU sends to light switch control device, with pilot light switch control device by this BBU and optical interface intraconnection corresponding to this RRU.
Step 36: optical switching device carries out this RRU after optical interface intraconnection at the light mouth of optical switching device side at light mouth and this BBU of optical switching device side, and RRU sets up optical fiber link with BBU synchronizes.In this synchronizing process, BBU according to RRU at the light slogan of BBU side and RRU the optical fiber progression in BBU side, for RRU distributes RRU ID, for distinguishing with the RRU ID1 of optical switching device for this RRU distribution, by this BBU, be that the RRU ID that this RRU distributes is called RRU ID2 here.
During specific implementation, BBU can pass through optical interface intraconnection process, the RRU of acquisition and its interconnection is at the optical fiber progression of optical switching device side, thereby according to this RRU at the light slogan of BBU side and RRU the optical fiber progression in BBU side, for RRU distributes RRU ID2, and RRU ID2 is sent to this RRU by CPRI frame.
BBU can be according to the rule of system definition, and the light slogan accessing according to the optical fiber of this RRU and this RRU are at the optical fiber progression of BBU side, for this RRU distributes RRU ID.Such as, if according to existing rule, RRU ID consists of at the optical fiber progression of BBU side at light slogan and the RRU of BBU side RRU.
Step 37:RRU sends after access request message in step 34, owing to not receiving response message in setting for a long time, therefore again with the forms of broadcasting, sends access request message, in the access request message this time sending, carries RRU ID2.
Step 38:BBU receives after the access request message of RRU transmission, for this RRU distributing IP address, access passage etc. are for setting up the configuration information of communication link, and returns to access response message to RRU.
Step 39:RRU receives after the response message that BBU returns, obtain in response message, carry by BBU be the IP address distributed of this RRU etc. for setting up the configuration information of communication link, and set up communication link according to this configuration information and BBU.
As the another kind of preferred scheme of the present invention, in the embodiment of the present invention, control appliance can also be according to the loading condition of each BBU in baseband pool, for the RRU that sets up communication link with a BBU redistributes another BBU, implementation procedure is: control appliance pilot light switching equipment disconnects BBU and is connected with the inside between the light mouth of RRU in optical switching device side at the light mouth of optical switching device side, and carry out above-mentioned steps 31~step 39, re-establish the communication link of RRU and another BBU, thereby realize under C-RAN framework, dynamically for RRU distributes BBU, and make this RRU access the process of BBU.
In prior art, only have after RRU access BBU, can get by BBU and identify for the RRU that this RRU distributes, when under C-RAN framework, RRU is directly connected into BBU, between RRU and BBU, there is not direct corresponding relation, therefore RRU cannot get the RRU being distributed by BBU and identifies before being linked into BBU, also just cannot send to optical switching device with pilot light switching equipment, this RRU with which BBU in baseband pool to be connected this RRU sign, therefore cannot realize the process of the BBU in RRU access baseband pool; And RRU in the embodiment of the present invention is before access BBU, first set up and synchronize with the optical fiber link of optical switching device, make optical switching device and control appliance can identify this RRU and know this RRU is connected to which BBU in baseband pool.
In the embodiment of the present invention, by optical switching device, be that RRU distributes a RRU to identify, make RRU be linked into optical switching device with a RRU sign, by BBU, by optical switching network, be that RRU distributes the 2nd RRU to identify, make RRU be linked into BBU with the 2nd RRU sign, thereby realized under C-RAN framework, RRU is linked into the process of BBU dynamically, and in embodiments of the present invention, without RRU and BBU are carried out to software upgrading or hardware modification, but utilized optical fiber link simultaneous techniques, the access message of BBU is without response timeout retransmission mechanism, realized the process of the BBU in RRU access baseband pool, because control appliance can also be that RRU distributes other BBU according to the loading condition of each BBU in baseband pool, realized the process that RRU accesses any one BBU in baseband pool dynamically, the embodiment of the present invention can be by the base station smooth evolution under RAN framework in prior art in the baseband pool under C-RAN framework, thereby solved the problem that RRU in prior art cannot be linked into BBU in baseband pool.
Technical conceive based on identical, the embodiment of the present invention also provides a kind of optical switching device and a kind of control appliance that can be applicable to above-mentioned flow process.
The embodiment of the present invention also provides a kind of optical switching device, and as shown in Figure 7, this equipment comprises:
Lock unit 71, synchronizes for setting up optical fiber link with RRU, and according to described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side, be that described RRU distributes a RRU sign;
Retransmission unit 72, the access request message sending for receiving described RRU, in described access request message, carry a described RRU sign, and described access request message is transmitted to control appliance, to trigger described control appliance, carry out following operation: according to a described RRU sign, determine that described RRU is at the light slogan of described optical switching device side and the optical fiber progression of described RRU; For described RRU allocation base tape cell BBU; According to described BBU at the light slogan of described optical switching device side and described RRU the light slogan in described optical switching device side, indicate described optical switching device that described RRU and described BBU are carried out to optical interface intraconnection, and by the operation of described optical interface intraconnection trigger described BBU according to described RRU at the light slogan of described BBU side and described RRU the optical fiber progression in described BBU side, for described RRU distributes the 2nd RRU sign, described RRU is according to the described BBU of described the 2nd RRU sign access.
Preferably, between described retransmission unit and described control appliance, by ethernet link, be connected; Described retransmission unit 72 specifically for, by ethernet link, described access request message is transmitted to control appliance.
Preferably, a described RRU sign comprise described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side, described the 2nd RRU sign comprise described RRU at the light slogan of described BBU side and RRU the optical fiber progression in described BBU side.
The embodiment of the present invention also provides a kind of control appliance, and as shown in Figure 8, this equipment comprises:
Receiving element 81, the access request message forwarding for receiving optical switching device, in described access request message, carry a RRU sign of RRU, a described RRU sign is described optical switching device when described RRU sets up optical fiber link and synchronizes, according to described RRU at the light slogan of described optical switching device side and described RRU optical fiber progression in described optical switching device side, for described RRU distributes;
Dispensing unit 82, for according to a described RRU sign, determine described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side; For described RRU allocation base tape cell BBU; According to described BBU at the light slogan of described optical switching device side and described RRU the light slogan in described optical switching device side, indicate described optical switching device that described RRU and described BBU are carried out to optical interface intraconnection, and by the operation of described optical interface intraconnection trigger described BBU according to described RRU at the light slogan of described BBU side and described RRU the optical fiber progression in described BBU side, for described RRU distributes the 2nd RRU sign, described RRU is according to the described BBU of described the 2nd RRU sign access.
Preferably, between described retransmission unit and described optical switching device, by ethernet link, be connected; Described dispensing unit 82 specifically for, pass through ethernet link, described BBU is sent to optical switching device at light slogan and the described RRU of described optical switching device side at the light slogan of described optical switching device side, to indicate described optical switching device that described RRU and described BBU are carried out to optical interface intraconnection.
Preferably, described dispensing unit 82 specifically for, according to the load of each BBU in baseband pool, be that described RRU distributes BBU.
Preferably, a described RRU sign comprise RRU at the light slogan of described optical switching device side and RRU the optical fiber progression in described optical switching device side, described the 2nd RRU sign comprise RRU at the light slogan of described BBU side and RRU the optical fiber progression in described BBU side.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.The processor of these computer program instructions to all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device can be provided, make the function of appointment in a flow process in can realization flow figure of instruction that the processor by this computer or other programmable data processing device carries out or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of flow chart or a square frame of a plurality of flow process and/or block diagram or a plurality of square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (16)

1. a cut-in method of far-end wireless radio remote unit RRU, is characterized in that, comprising:
Optical switching device is set up optical fiber link with RRU and is synchronizeed, and according to described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side, be that described RRU distributes a RRU sign;
Optical switching device receives the access request message that described RRU sends, and carries a described RRU sign in described access request message, and described optical switching device is transmitted to control appliance by described access request message, to trigger described control appliance, carries out following operation:
According to a described RRU sign determine described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side;
For described RRU allocation base tape cell BBU;
Using BBU the light slogan of described optical switching device side as RRU the light slogan in described BBU side, according to described BBU at the light slogan of described optical switching device side and described RRU the light slogan in described optical switching device side, indicate described optical switching device that described RRU and described BBU are carried out to optical interface intraconnection, and by the operation of described optical interface intraconnection trigger described BBU according to described RRU at the light slogan of described BBU side and described RRU the optical fiber progression at described BBU, for described RRU distributes the 2nd RRU sign, described RRU is according to the described BBU of described the 2nd RRU sign access.
2. the method for claim 1, is characterized in that, between described optical switching device and described control appliance, by ethernet link, is connected;
Described optical switching device is transmitted to control appliance by described access request message, specifically comprises:
Described optical switching device is transmitted to control appliance by ethernet link by described access request message.
3. the method for claim 1, is characterized in that, described RRU, according to the described BBU of described the 2nd RRU sign access, specifically comprises:
Described RRU sends after described access request message, if do not receive response message in setting duration, again sends access request message, carries described the 2nd RRU sign in the described access request message again sending;
Described RRU receives described BBU according to after the described again response message that the access request message of transmission is returned, and obtaining the described BBU carrying in described response message is the IP address that described RRU distributes, and uses described IP address and described BBU to set up communication link.
4. as the method as described in arbitrary in claim 1-3, it is characterized in that, a described RRU sign comprise described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side, described the 2nd RRU sign comprise described RRU at the light slogan of described BBU side and RRU the optical fiber progression in described BBU side.
5. a cut-in method of far-end wireless radio remote unit RRU, is characterized in that, comprising:
Control appliance receives the access request message that optical switching device forwards, in described access request message, carry a RRU sign of RRU, a described RRU sign is described optical switching device when described RRU sets up optical fiber link and synchronizes, according to described RRU at the light slogan of described optical switching device side and described RRU optical fiber progression in described optical switching device side, for described RRU distributes;
Described control appliance is according to a described RRU sign, determine described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side, for described RRU allocation base tape cell BBU, using BBU the light slogan of described optical switching device side as RRU the light slogan in described BBU side, according to described BBU at the light slogan of described optical switching device side and described RRU the light slogan in described optical switching device side, indicate described optical switching device that described RRU and described BBU are carried out to optical interface intraconnection, and by the operation of described optical interface intraconnection trigger described BBU according to described RRU at the light slogan of described BBU side and described RRU the optical fiber progression in described BBU side, for described RRU distributes the 2nd RRU sign, described RRU is according to the described BBU of described the 2nd RRU sign access.
6. method as claimed in claim 5, is characterized in that, between described control appliance and described optical switching device, by ethernet link, is connected;
Described according to described BBU at the light slogan of described optical switching device side and described RRU at the light slogan of described optical switching device side, indicate described optical switching device that described RRU and described BBU are carried out to optical interface intraconnection, specifically comprise:
Control appliance passes through ethernet link, described BBU is sent to optical switching device at light slogan and the described RRU of described optical switching device side at the light slogan of described optical switching device side, to indicate described optical switching device that described RRU and described BBU are carried out to optical interface intraconnection.
7. method as claimed in claim 5, is characterized in that, for described RRU distributes BBU, specifically comprises:
According to the load of each BBU in baseband pool, for described RRU distributes BBU.
8. method as claimed in claim 5, is characterized in that, described RRU, according to the described BBU of described the 2nd RRU sign access, comprising:
Described RRU sends after described access request message, if do not receive response message in setting duration, again sends access request message, carries described the 2nd RRU sign in the described access request message again sending;
Described RRU receives described BBU according to after the described again response message that the access request message of transmission is returned, and obtaining the described BBU carrying in described response message is the IP address that described RRU distributes, and uses described IP address and described BBU to set up communication link.
9. as the method as described in arbitrary in claim 5-8, it is characterized in that, a described RRU sign comprise RRU at the light slogan of described optical switching device side and RRU the optical fiber progression in described optical switching device side, described the 2nd RRU sign comprise RRU at the light slogan of described BBU side and RRU the optical fiber progression in described BBU side.
10. an optical switching device, is characterized in that, comprising:
Lock unit, synchronizes for setting up optical fiber link with RRU, and according to described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side, be that described RRU distributes a RRU sign;
Retransmission unit, the access request message sending for receiving described RRU, carries a described RRU sign, and described access request message is transmitted to control appliance in described access request message, to trigger described control appliance, carry out following operation:
According to a described RRU sign, determine that described RRU is at the light slogan of described optical switching device side and the optical fiber progression of described RRU; For described RRU allocation base tape cell BBU; According to described BBU at the light slogan of described optical switching device side and described RRU the light slogan in described optical switching device side, indicate described optical switching device that described RRU and described BBU are carried out to optical interface intraconnection, and by the operation of described optical interface intraconnection trigger described BBU according to described RRU at the light slogan of described BBU side and described RRU the optical fiber progression in described BBU side, for described RRU distributes the 2nd RRU sign, described RRU is according to the described BBU of described the 2nd RRU sign access.
11. equipment as claimed in claim 10, is characterized in that, between described retransmission unit and described control appliance, by ethernet link, are connected;
Described retransmission unit specifically for, by ethernet link, described access request message is transmitted to control appliance.
12. equipment as described in claim 10 or 11, it is characterized in that, a described RRU sign comprise described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side, described the 2nd RRU sign comprise described RRU at the light slogan of described BBU side and RRU the optical fiber progression in described BBU side.
13. 1 kinds of control appliances, is characterized in that, comprising:
Receiving element, the access request message forwarding for receiving optical switching device, in described access request message, carry a RRU sign of RRU, a described RRU sign is described optical switching device when described RRU sets up optical fiber link and synchronizes, according to described RRU at the light slogan of described optical switching device side and described RRU optical fiber progression in described optical switching device side, for described RRU distributes;
Dispensing unit, for according to a described RRU sign, determine described RRU at the light slogan of described optical switching device side and described RRU the optical fiber progression in described optical switching device side; For described RRU allocation base tape cell BBU; According to described BBU at the light slogan of described optical switching device side and described RRU the light slogan in described optical switching device side, indicate described optical switching device that described RRU and described BBU are carried out to optical interface intraconnection, and by the operation of described optical interface intraconnection trigger described BBU according to described RRU at the light slogan of described BBU side and described RRU the optical fiber progression in described BBU side, for described RRU distributes the 2nd RRU sign, described RRU is according to the described BBU of described the 2nd RRU sign access.
14. equipment as claimed in claim 13, is characterized in that, between described retransmission unit and described optical switching device, by ethernet link, are connected;
Described dispensing unit specifically for, pass through ethernet link, described BBU is sent to optical switching device at light slogan and the described RRU of described optical switching device side at the light slogan of described optical switching device side, to indicate described optical switching device that described RRU and described BBU are carried out to optical interface intraconnection.
15. equipment as claimed in claim 13, is characterized in that, described dispensing unit specifically for, according to the load of each BBU in baseband pool, be that described RRU distributes BBU.
16. as the equipment as described in arbitrary in claim 13-15, it is characterized in that, a described RRU sign comprise RRU at the light slogan of described optical switching device side and RRU the optical fiber progression in described optical switching device side, described the 2nd RRU sign comprise RRU at the light slogan of described BBU side and RRU the optical fiber progression in described BBU side.
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