CN103139941A - Transmission link determining method and system of synchronous orthogonal data in base band tank - Google Patents
Transmission link determining method and system of synchronous orthogonal data in base band tank Download PDFInfo
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- CN103139941A CN103139941A CN2011103764102A CN201110376410A CN103139941A CN 103139941 A CN103139941 A CN 103139941A CN 2011103764102 A CN2011103764102 A CN 2011103764102A CN 201110376410 A CN201110376410 A CN 201110376410A CN 103139941 A CN103139941 A CN 103139941A
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Abstract
The invention discloses a transmission link determining method and system of synchronous orthogonal data in a base band tank. The transmission link determining method includes steps that when a neighborhood building base band unit (BBU) receives a neighborhood building request message, a target BBU where an available base band resource is located can be sought through a source exchange device; and after the target BBU is found, the neighborhood BBU pre-selects a first link between the local and the source exchange device according to the link resource of the source exchange device and pre-selects a second link between the source exchange device and the target BBU through the source exchange device. The transmission link determining method achieves automatic distribution of the transmission links of IQ data between a radio remote unit (RRU) and the BBU which are located in the base band tank, and improves distribution efficiency of IQ resources in the large-capacity base band tank.
Description
Technical field
The present invention relates to wireless communication technology field, the transmission link that relates in particular to synchronized orthogonal data in a kind of baseband pool is determined method and system.
Background technology
In radio network technique, the base station product can be divided into two classes: integral type base station and distributed base station.The integral type base station is located at base band and radio frequency unit in same rack, and distributed base station is separated from each other base band and radio frequency unit and comes.Specifically, distributed base station generally is divided into BBU (Building Base band Unite, baseband processing unit) and RRU (Radio Remote Unite, Remote Radio Unit), BBU usually concentrates and is placed in machine room, be connected with the RRU that is positioned at far-end by optical fiber, what transmit between BBU and RRU is IQ (Inphase Quadrature, inphase quadrature) data.Can be one to one or the connected mode of one-to-many between BBU and RRU, each RRU can share the base-band resource in BBU.
Because the base-band resource number of single BBU is limited, so prior art also proposes a kind of large capacity baseband pool technology, is used for improving the scale of base-band resource.Fig. 1 is the network topological diagram of the large capacity baseband pool of prior art proposition.As shown in Figure 1, large capacity baseband pool has a plurality of BBU, BBU can be interconnected by switching equipment, thereby the base-band resource capacity of baseband pool just expands to the summation of the base-band resource of all BBU, and RRU can share all base-band resources of baseband pool by switching equipment.
In prior art, generally has one-to-one relationship between RRU and BBU, RRU can only obtain the base-band resource of particular B BU, unavailable or when there is no resource when the base-band resource of BBU, need manually to change the corresponding relation between RRU and BBU, the transmission link that is IQ data between RRU and BBU can't be selected automatically, and link assignment efficient is low.
Summary of the invention
The object of the invention is to, provide the transmission link of synchronized orthogonal data in a kind of baseband pool to determine method and system, can't automatically select to solve in prior art between RRU and BBU the link of IQ data, the inefficient technical problem of link assignment.
The present invention solves the problems of the technologies described above by the following technical programs:
In a kind of baseband pool, the transmission link of synchronized orthogonal data is determined method, and said method comprises the following steps:
Cell baseband processing unit BBU receives when request message is set up in the residential quarter, searches the target BBU at available base-band resource place by the source switching equipment;
After finding target BBU, above-mentioned residential quarter BBU is according to the link circuit resource of above-mentioned source switching equipment preliminary election the first link between local and above-mentioned source switching equipment, and by above-mentioned source switching equipment preliminary election second link between above-mentioned source switching equipment and above-mentioned target BBU.
The target BBU step of searching available base-band resource place by the source switching equipment specifically comprises:
Above-mentioned residential quarter BBU sends the resource request of searching available base-band resource to above-mentioned source switching equipment;
Whether after above-mentioned source switching equipment is received above-mentioned resource request, search the message of available base-band resource to broadcasting with locally-attached BBU, and timer is set, then monitoring has BBU to return to response message in the setting-up time of above-mentioned timer;
If, above-mentioned source switching equipment selects the maximum BBU of available link resource as target BBU from above-mentioned response message, and the identification information of above-mentioned target BBU is returned to above-mentioned residential quarter BBU, otherwise to the message of searching available base-band resource with the broadcasting of locally-attached switching equipment, until above-mentioned switching equipment is searched successfully or failure till.
After above-mentioned residential quarter BBU receives that request message is set up in the residential quarter, search the target BBU at available base-band resource place by the source switching equipment before, further comprising the steps of:
Above-mentioned residential quarter BBU judges whether this locality directly is connected with the residential quarter radio frequency remote unit RRU, if, according to the link circuit resource of above-mentioned residential quarter RRU, set up the residential quarter link from residential quarter RRU to the local interface unit, otherwise:
Whether judgement is local is connected by source BBU indirectly with above-mentioned residential quarter RRU, if, the foundation request of sending the residential quarter link to above-mentioned source BBU;
After above-mentioned source BBU receives above-mentioned foundation request, according to the link circuit resource of above-mentioned residential quarter RRU, set up the residential quarter link from above-mentioned residential quarter RRU to the local interface unit.
After finding target BBU, above-mentioned residential quarter BBU according to the link circuit resource of above-mentioned source switching equipment between local and above-mentioned source switching equipment before preliminary election the first link, further comprising the steps of:
Above-mentioned residential quarter BBU judges whether this locality directly is connected with above-mentioned residential quarter RRU, if, carry out the step according to link circuit resource preliminary election first link between local and above-mentioned source switching equipment of above-mentioned source switching equipment, otherwise:
Above-mentioned residential quarter BBU is emitted in the first preliminary election request of preliminary election the first link between above-mentioned source BBU and above-mentioned source switching equipment to above-mentioned source BBU;
After above-mentioned source BBU receives above-mentioned the first preliminary election request, according to link circuit resource preliminary election first link between local and above-mentioned source switching equipment of above-mentioned source switching equipment.
Specifically comprise by above-mentioned source switching equipment preliminary election second link step between above-mentioned source switching equipment and above-mentioned target BBU:
Above-mentioned residential quarter BBU is emitted in the second preliminary election request of preliminary election the second link between above-mentioned source switching equipment and above-mentioned target BBU to above-mentioned source switching equipment;
Above-mentioned source switching equipment receives above-mentioned the second preliminary election request, judge whether this locality directly is connected with above-mentioned target BBU, if, according to link circuit resource preliminary election second link between this locality and above-mentioned target BBU of above-mentioned target BBU.
If above-mentioned source switching equipment is connected by the target switching equipment indirectly with above-mentioned target BBU, above-mentioned source switching equipment is skipped the step according to link circuit resource preliminary election second link between local and above-mentioned target BBU of above-mentioned target BBU, carries out following steps:
According to the link circuit resource of above-mentioned target switching equipment preliminary election intermediate line link between local and above-mentioned target switching equipment, and be emitted in the link request of preliminary election the second link between above-mentioned target switching equipment and above-mentioned target BBU to above-mentioned target switching equipment;
After above-mentioned target switching equipment is received above-mentioned link request, according to link circuit resource preliminary election second link between local and above-mentioned target BBU of above-mentioned target BBU.
Above-mentioned source switching equipment according to the link circuit resource of above-mentioned target BBU between local and above-mentioned target BBU after preliminary election the second link, further comprising the steps of:
Above-mentioned source switching equipment sends the preferred request of selecting optimum the second link to above-mentioned target BBU;
After above-mentioned target BBU receives above-mentioned preferred request, the transmission link of foundation from local Base Band Unit to the local interface unit, the second link according to the switching equipment preliminary election of above-mentioned source, select the maximum link of free timeslot as optimum the second link from above-mentioned the second link, and return to preferred the first successful confirmation to above-mentioned source switching equipment;
After above-mentioned source switching equipment is received above-mentioned the first confirmation, according to the first link of above-mentioned residential quarter BBU or the BBU preliminary election of above-mentioned source, select the maximum link of free timeslot as optimum the first link from above-mentioned the first link.
Above-mentioned target switching equipment according to the link circuit resource of above-mentioned target BBU between local and above-mentioned target BBU after preliminary election the second link, further comprising the steps of:
Above-mentioned target switching equipment sends the preferred request of selecting optimum the second link to above-mentioned target BBU;
After above-mentioned target BBU receives above-mentioned preferred request, the transmission link of foundation from local Base Band Unit to the local interface unit, the second link according to the preliminary election of above-mentioned target switching equipment, select the maximum link of free timeslot as optimum the second link from above-mentioned the second link, and return to preferred the second successful confirmation to above-mentioned target switching equipment;
After above-mentioned target switching equipment is received above-mentioned the second confirmation, intermediate line link according to the switching equipment preliminary election of above-mentioned source, select the maximum link of free timeslot as optimum intermediate line link from above-mentioned intermediate line link, and return to preferred the 3rd successful confirmation to above-mentioned source switching equipment;
After above-mentioned source switching equipment is received above-mentioned the 3rd confirmation, according to the first link of above-mentioned residential quarter BBU or the BBU preliminary election of above-mentioned source, select the maximum link of free timeslot as optimum the first link from above-mentioned the first link.
The present invention is also by the following technical solutions:
In a kind of baseband pool, the transmission link of synchronized orthogonal data is determined system, comprises residential quarter BBU, source switching equipment and target BBU;
Above-mentioned residential quarter BBU, be used for when receiving that request message is set up in the residential quarter, search the target BBU at available base-band resource place by above-mentioned source switching equipment, and be used for after finding target BBU, according to link circuit resource preliminary election first link between local and above-mentioned source switching equipment of above-mentioned source switching equipment, and by above-mentioned source switching equipment preliminary election second link between above-mentioned source switching equipment and above-mentioned target BBU.
Above-mentioned residential quarter BBU comprises the base-band resource request module, link circuit resource request module, the first link preliminary election module;
Above-mentioned base-band resource request module is used for sending the resource request of searching available base-band resource to above-mentioned source switching equipment when receiving that request message is set up in the residential quarter;
Above-mentioned link circuit resource request module is used for being emitted in the preliminary election request of preliminary election the second link between above-mentioned source switching equipment and above-mentioned target BBU to above-mentioned source switching equipment after finding target BBU;
Above-mentioned the first link preliminary election module is used for link circuit resource preliminary election first link between above-mentioned residential quarter BBU and above-mentioned source switching equipment according to above-mentioned source switching equipment.
Above-mentioned source switching equipment comprises that base-band resource searches module, the second link preliminary election module, the second link request module, the first link preferred module;
Above-mentioned base-band resource is searched module, is used for when receiving the resource request of searching available base-band resource, broadcasts the message of searching base-band resource to the BBU that is connected with above-mentioned source switching equipment or switching equipment;
Above-mentioned the second link preliminary election module is used for link circuit resource preliminary election second link between above-mentioned source switching equipment and above-mentioned target BBU according to above-mentioned target BBU;
Above-mentioned the second link request module is used for after above-mentioned the second complete the second link of link preliminary election module preliminary election, sends the preferred request of selecting optimum the second link to above-mentioned target BBU.
Above-mentioned the first link preferred module is used for the first link according to the BBU preliminary election of above-mentioned residential quarter, selects the maximum link of free timeslot as optimum the first link from above-mentioned the first link.
Above-mentioned target BBU comprises the second link preferred module;
Above-mentioned the second link preferred module is used for the second link according to the switching equipment preliminary election of above-mentioned source, selects the maximum link of free timeslot as optimum the second link from above-mentioned the second link.
Compare with prior art, the present invention has following useful technique effect: the inventive method has realized not only in the baseband pool that between RRU and BBU, the transmission link of IQ data distributes automatically, can also be according to many transmission links between RRU and BBU, select optimum transmission link to be used for the IQ exchanges data, thereby improved the allocative efficiency of IQ resource in large capacity baseband pool.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of a part of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the network topological diagram of the large capacity baseband pool of prior art proposition;
Fig. 2 be in the preferred embodiment of the present invention in a kind of baseband pool the transmission link of synchronized orthogonal data determine the flow chart of method;
Fig. 3 is the transmission link deterministic process schematic diagram of IQ data in a kind of large capacity baseband pool in the preferred embodiment of the present invention;
Fig. 4 be in the preferred embodiment of the present invention in a kind of baseband pool the transmission link of synchronized orthogonal data determine the block diagram of system.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, clear, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Fig. 2 be in the preferred embodiment of the present invention in a kind of baseband pool the transmission link of synchronized orthogonal data determine the flow chart of method.As shown in Figure 2, the method for the preferred embodiment of the present invention comprises the following steps:
Step S201: after residential quarter BBU receives that request message is set up in the residential quarter, judge whether this locality directly is connected with residential quarter RRU, if set up the residential quarter link from residential quarter RRU to the local interface unit;
In step S201, when residential quarter BBU directly was connected with residential quarter RRU, residential quarter BBU was according to the residential quarter link of link circuit resource foundation from residential quarter RRU to the local interface unit of above-mentioned residential quarter RRU.When residential quarter BBU is connected by source BBU indirectly with residential quarter RRU, above-mentioned residential quarter BBU sends the foundation request of residential quarter link to above-mentioned source BBU, after above-mentioned source BBU receives above-mentioned foundation request, according to the link circuit resource of above-mentioned residential quarter RRU, set up the residential quarter link from above-mentioned source RRU to the local interface unit.
Step S202: above-mentioned residential quarter BBU sends the resource request of searching available base-band resource to the source switching equipment;
Step S203: after above-mentioned source switching equipment is received above-mentioned resource request, search the target BBU at available base-band resource place, and the identification information of above-mentioned target BBU is returned to above-mentioned residential quarter BBU;
In this preferred embodiment, above-mentioned source switching equipment is searched the target BBU at available base-band resource place by the following method:
Above-mentioned source switching equipment is searched the message of available base-band resource to broadcasting with locally-attached all BBU, and timer is set, and whether then monitor has BBU to return to response message in the setting-up time of above-mentioned timer;
If, above-mentioned source switching equipment selects the maximum BBU of available link resource as target BBU from above-mentioned response message, and the identification information of above-mentioned target BBU is returned to above-mentioned residential quarter BBU, otherwise to the message of searching available base-band resource with the broadcasting of locally-attached switching equipment, until above-mentioned switching equipment is searched successfully or failure till.
Step S204: above-mentioned residential quarter BBU judges whether this locality directly is connected with residential quarter RRU, if, preliminary election the first link between local and above-mentioned source switching equipment, otherwise by source BBU preliminary election first link between source BBU and above-mentioned source switching equipment;
Above-mentioned residential quarter BBU by the concrete grammar of source BBU preliminary election first link between source BBU and above-mentioned source switching equipment is: above-mentioned residential quarter BBU is emitted in the first preliminary election request of above-mentioned source BBU and above-mentioned source switching equipment preliminary election the first link to above-mentioned source BBU; After above-mentioned source BBU receives above-mentioned the first preliminary election request, according to link circuit resource preliminary election first link between local and above-mentioned source switching equipment of above-mentioned source switching equipment.
Step S205: above-mentioned residential quarter BBU is emitted in the second preliminary election request of preliminary election the second link between above-mentioned source switching equipment and above-mentioned target BBU to above-mentioned source switching equipment;
Interface unit corresponding to the first link that comprises above-mentioned residential quarter BBU or the BBU preliminary election of above-mentioned source in above-mentioned the second preliminary election request, thus the source switching equipment of making can be learnt the information of the first link of above-mentioned residential quarter BBU or the BBU preliminary election of above-mentioned source.
Step S206: above-mentioned source switching equipment judges whether this locality directly is connected with above-mentioned target BBU, if, preliminary election the second link between local and above-mentioned target BBU;
Step S207: after the second link preliminary election was completed, above-mentioned source switching equipment sent the preferred request of selecting optimum the second link to above-mentioned target BBU;
Availablely in above-mentioned preferred request comprise switching device interface unit, source corresponding to above-mentioned the second link and target BBU interface unit, thereby make above-mentioned target BBU can learn the information of the second link of above-mentioned source switching equipment preliminary election.
Step S208: above-mentioned target BBU selects the maximum link of free timeslot as optimum the second link from above-mentioned the second link, and returns to preferred the first successful confirmation to above-mentioned source switching equipment according to the second link of above-mentioned source switching equipment preliminary election;
After above-mentioned target BBU receives above-mentioned preferred request, first set up the transmission link from local Base Band Unit to the local interface unit, then according to the second link of above-mentioned source switching equipment preliminary election, select the maximum link of free timeslot as optimum the second link from above-mentioned the second link.Those skilled in the art can be with understanding, what of link idle time slot can link can with the IQ number of active lanes and link the IQ number of active lanes of use be basis for estimation.
Step S209: above-mentioned source switching equipment is according to the first link of above-mentioned residential quarter BBU or source BBU preliminary election, select the maximum link of free timeslot as optimum the first link from above-mentioned the first link, and return to preferred successful ending message to above-mentioned residential quarter BBU, step finishes.
Residential quarter BBU receives ending message, shows the transmission link of having set up between residential quarter RRU and target BBU for transmission IQ data, and after this residential quarter RRU just can utilize the residential quarter link of foundation, optimum the first link and optimum the second link and target BBU exchange IQ data.
In step S206, above-mentioned source switching equipment judges when whether this locality directly is connected with above-mentioned target BBU, indirectly is connected by the target switching equipment with above-mentioned target BBU if discovery is local, and skips steps S207 to step 209, carries out following steps:
1) above-mentioned source switching equipment is according to the link circuit resource of above-mentioned target switching equipment, preliminary election intermediate line link between local and above-mentioned target switching equipment, and be emitted in the link request of preliminary election the second link between above-mentioned target switching equipment and above-mentioned target BBU to above-mentioned target switching equipment;
2) after above-mentioned target switching equipment is received above-mentioned link request, according to link circuit resource preliminary election second link between local and above-mentioned target BBU of above-mentioned target BBU.
3) after the second link preliminary election was completed, above-mentioned target switching equipment sent the preferred request of selecting optimum the second link to above-mentioned target BBU;
4) after above-mentioned target BBU receives above-mentioned preferred request, the transmission link of foundation from local Base Band Unit to the local interface unit, the second link according to the preliminary election of above-mentioned target switching equipment, select the maximum link of free timeslot as optimum the second link from above-mentioned the second link, and return to preferred the second successful confirmation to above-mentioned target switching equipment;
5) after above-mentioned target switching equipment is received above-mentioned the second confirmation, intermediate line link according to the switching equipment preliminary election of above-mentioned source, select the maximum link of free timeslot as optimum intermediate line link from above-mentioned intermediate line link, and return to preferred the 3rd successful confirmation to above-mentioned source switching equipment;
6) after above-mentioned source switching equipment is received above-mentioned the 3rd confirmation, the first link according to the BBU preliminary election of above-mentioned residential quarter, select the maximum link of free timeslot as optimum the first link from above-mentioned the first link, and return to preferred successful ending message to above-mentioned residential quarter BBU.
Residential quarter BBU receives ending message, show the transmission link of having set up between residential quarter RRU and target BBU for transmission IQ data, after this residential quarter RRU just can utilize the residential quarter link of foundation, optimum the first link, optimum intermediate line link and optimum the second link and target BBU exchange IQ data.
Below in conjunction with a comparatively lively large capacity baseband pool, above each step is described method of the present invention in order further to explain.Fig. 3 is the transmission link deterministic process schematic diagram of IQ data in a kind of large capacity baseband pool in the preferred embodiment of the present invention.As shown in Figure 3, this large capacity baseband pool comprises: base station controller 31, residential quarter BBU32, source BBU33, source switching equipment 34, target switching equipment 35, target BBU36 and residential quarter RRU37.
When above-mentioned residential quarter BBU32 receives that request message is set up in residential quarter that above-mentioned base station controller 31 is sent, at first judge whether this locality directly is connected with residential quarter RRU37, find no, so send the foundation request of residential quarter link to above-mentioned source BBU33, after above-mentioned source BBU33 receives above-mentioned foundation request, select link 1 according to the link circuit resource (interface unit 1 and interface unit 2) of above-mentioned residential quarter RRU37.Then residential quarter BBU32 searches available base-band resource by above-mentioned source switching equipment 34, suppose that the available base-band resource that finds is positioned at above-mentioned target BBU36, after finding target BBU, residential quarter BBU32 is preliminary election the first and second links between local and above-mentioned target BBU36.
Pre-selection step comprises: above-mentioned residential quarter BBU32 judges whether this locality directly is connected with the source switching equipment, find no, so ask above-mentioned source BBU33 to be emitted in preliminary election the first link between source BBU33 and above-mentioned source switching equipment; Above-mentioned source BBU33 selects the first link 3, and asks above-mentioned source switching equipment preliminary election second link between above-mentioned source switching equipment 34 and above-mentioned target BBU36; Above-mentioned source switching equipment 34 judges whether this locality directly is connected with above-mentioned target BBU36, find no, so preliminary election intermediate line link 5-6,9-12 between local and above-mentioned target switching equipment 35, and ask above-mentioned target switching equipment 35 preliminary election second link between above-mentioned target switching equipment 35 and above-mentioned target BBU36, above-mentioned target switching equipment 35 is selected the second link 13,15 and 17.
After choosing the second link, above-mentioned source switching equipment 34 sends the preferred request of selecting optimum the second link to above-mentioned target BBU36.Above-mentioned target BBU36 sets up local Base Band Unit to the transmission link 19 of local interface unit, then according to the second link 13 of above-mentioned target switching equipment 35 preliminary elections, 15,17 and the free timeslot situation, selects optimum the second link 17 and 15.Follow above-mentioned target switching equipment 35 according to intermediate line link 5-6, the 9-12 of the switching equipment preliminary election of above-mentioned source, select optimum intermediate line link 12 and 6.Last above-mentioned source switching equipment 34 is selected optimum the first link 3 according to the first link 3 of above-mentioned source BBU preliminary election.Thereby can carry out transmission or the exchange of IQ data by the transmission link 1,3,6,12,15,17,19 of determining between above-mentioned residential quarter RRU37 and above-mentioned target BBU36.
Fig. 4 be in the preferred embodiment of the present invention in a kind of baseband pool the transmission link of synchronized orthogonal data determine the block diagram of system.As shown in Figure 4, the system of the preferred embodiment of the present invention comprises: residential quarter BBU32, source switching equipment 34 and target BBU36;
Above-mentioned residential quarter BBU32, be used for when receiving that request message is set up in the residential quarter, search the target BBU36 at available base-band resource place by above-mentioned source switching equipment 34, and be used for after finding target BBU, according to link circuit resource preliminary election first link between local and above-mentioned source switching equipment 34 of above-mentioned source switching equipment, and by above-mentioned source switching equipment 34 preliminary election second link between above-mentioned source switching equipment 34 and above-mentioned target BBU36.
Above-mentioned residential quarter BBU32 comprises base-band resource request module 321, link circuit resource request module 322, the first link preliminary election modules 323;
Above-mentioned base-band resource request module 321 is used for sending the resource request of searching available base-band resource to above-mentioned source switching equipment 34 when receiving that request message is set up in the residential quarter;
Above-mentioned link circuit resource request module 322 is used for being emitted in the preliminary election request of preliminary election the second link between above-mentioned source switching equipment 34 and above-mentioned target BBU36 to above-mentioned source switching equipment 34 after finding target BBU;
Above-mentioned the first link preliminary election module 323 is used for link circuit resource preliminary election first link between above-mentioned residential quarter BBU32 and above-mentioned source switching equipment 34 according to above-mentioned source switching equipment 34.
Above-mentioned source switching equipment 34 comprises that base-band resource searches module 341, the second link preliminary election module 342, the first link preferred module 343, the second link request modules 344;
Above-mentioned base-band resource is searched module 341, is used for when receiving the resource request of searching available base-band resource, broadcasts the message of searching base-band resource to the BBU that is connected with above-mentioned source switching equipment 34 or switching equipment;
Above-mentioned the second link preliminary election module 342 is used for link circuit resource preliminary election second link between above-mentioned source switching equipment 34 and above-mentioned target BBU36 according to above-mentioned target BBU;
Above-mentioned the first link preferred module 343 is used for the first link according to the BBU32 preliminary election of above-mentioned residential quarter, selects the maximum link of free timeslot as optimum the first link from above-mentioned the first link;
Above-mentioned the second link request module 344 is used for after above-mentioned the second complete the second link of link preliminary election module 342 preliminary elections, sends the preferred request of selecting optimum the second link to above-mentioned target BBU36.
Above-mentioned target BBU36 comprises the second link preferred module 361;
Above-mentioned the second link preferred module 361 is used for the second link according to switching equipment 34 preliminary elections of above-mentioned source, selects the maximum link of free timeslot as optimum the second link from above-mentioned the second link.
Above-mentioned explanation illustrates and has described the preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the disclosed form of this paper, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can in invention contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not break away from the spirit and scope of the present invention, all should be in the protection range of claims of the present invention.
Claims (12)
1. in a baseband pool, the transmission link of synchronized orthogonal data is determined method, it is characterized in that, said method comprising the steps of:
Cell baseband processing unit BBU receives when request message is set up in the residential quarter, searches the target BBU at available base-band resource place by the source switching equipment;
After finding target BBU, described residential quarter BBU is according to the link circuit resource of described source switching equipment preliminary election the first link between local and described source switching equipment, and by described source switching equipment preliminary election second link between described source switching equipment and described target BBU.
2. method according to claim 1 is characterized in that: the target BBU step of searching available base-band resource place by the source switching equipment specifically comprises:
Described residential quarter BBU sends the resource request of searching available base-band resource to described source switching equipment;
Whether after described source switching equipment is received described resource request, search the message of available base-band resource to broadcasting with locally-attached BBU, and timer is set, then monitoring has BBU to return to response message in the setting-up time of described timer;
If, described source switching equipment selects the maximum BBU of available link resource as target BBU from described response message, and the identification information of described target BBU is returned to described residential quarter BBU, otherwise to the message of searching available base-band resource with the broadcasting of locally-attached switching equipment, until described switching equipment is searched successfully or failure till.
3. method according to claim 2 is characterized in that: after described residential quarter BBU receives that request message is set up in the residential quarter, search the target BBU at available base-band resource place by the source switching equipment before, further comprising the steps of:
Described residential quarter BBU judges whether this locality directly is connected with the residential quarter radio frequency remote unit RRU, if, according to the link circuit resource of described residential quarter RRU, set up the residential quarter link from residential quarter RRU to the local interface unit, otherwise:
Whether judgement is local is connected by source BBU indirectly with described residential quarter RRU, if, the foundation request of sending the residential quarter link to described source BBU;
After described source BBU receives described foundation request, according to the link circuit resource of described residential quarter RRU, set up the residential quarter link from described residential quarter RRU to the local interface unit.
4. method according to claim 3 is characterized in that: after finding target BBU, described residential quarter BBU according to the link circuit resource of described source switching equipment between local and described source switching equipment before preliminary election the first link, further comprising the steps of:
Described residential quarter BBU judges whether this locality directly is connected with described residential quarter RRU, if, carry out the step according to link circuit resource preliminary election first link between local and described source switching equipment of described source switching equipment, otherwise:
Described residential quarter BBU is emitted in the first preliminary election request of preliminary election the first link between described source BBU and described source switching equipment to described source BBU;
After described source BBU receives described the first preliminary election request, according to link circuit resource preliminary election first link between local and described source switching equipment of described source switching equipment.
5. method according to claim 4 is characterized in that: specifically comprise by described source switching equipment preliminary election second link step between described source switching equipment and described target BBU:
Described residential quarter BBU is emitted in the second preliminary election request of preliminary election the second link between described source switching equipment and described target BBU to described source switching equipment;
Described source switching equipment receives described the second preliminary election request, judge whether this locality directly is connected with described target BBU, if, according to link circuit resource preliminary election second link between this locality and described target BBU of described target BBU.
6. method according to claim 5, it is characterized in that, if described source switching equipment is connected by the target switching equipment indirectly with described target BBU, described source switching equipment is skipped the step according to link circuit resource preliminary election second link between local and described target BBU of described target BBU, carries out following steps:
According to the link circuit resource of described target switching equipment preliminary election intermediate line link between local and described target switching equipment, and be emitted in the link request of preliminary election the second link between described target switching equipment and described target BBU to described target switching equipment;
After described target switching equipment is received described link request, according to link circuit resource preliminary election second link between local and described target BBU of described target BBU.
7. method according to claim 5 is characterized in that: described source switching equipment according to the link circuit resource of described target BBU between local and described target BBU after preliminary election the second link, further comprising the steps of:
Described source switching equipment sends the preferred request of selecting optimum the second link to described target BBU;
After described target BBU receives described preferred request, the transmission link of foundation from local Base Band Unit to the local interface unit, the second link according to the switching equipment preliminary election of described source, select the maximum link of free timeslot as optimum the second link from described the second link, and return to preferred the first successful confirmation to described source switching equipment;
After described source switching equipment is received described the first confirmation, according to the first link of described residential quarter BBU or the BBU preliminary election of described source, select the maximum link of free timeslot as optimum the first link from described the first link.
8. method according to claim 6 is characterized in that: described target switching equipment according to the link circuit resource of described target BBU between local and described target BBU after preliminary election the second link, further comprising the steps of:
Described target switching equipment sends the preferred request of selecting optimum the second link to described target BBU;
After described target BBU receives described preferred request, the transmission link of foundation from local Base Band Unit to the local interface unit, the second link according to the preliminary election of described target switching equipment, select the maximum link of free timeslot as optimum the second link from described the second link, and return to preferred the second successful confirmation to described target switching equipment;
After described target switching equipment is received described the second confirmation, intermediate line link according to the switching equipment preliminary election of described source, select the maximum link of free timeslot as optimum intermediate line link from described intermediate line link, and return to preferred the 3rd successful confirmation to described source switching equipment;
After described source switching equipment is received described the 3rd confirmation, according to the first link of described residential quarter BBU or the BBU preliminary election of described source, select the maximum link of free timeslot as optimum the first link from described the first link.
9. in a baseband pool, the transmission link of synchronized orthogonal data is determined system, comprises cell baseband processing unit BBU, source switching equipment and target BBU, it is characterized in that:
Described cell baseband processing unit BBU, be used for when receiving that request message is set up in the residential quarter, search the target BBU at available base-band resource place by described source switching equipment, and be used for after finding target BBU, according to link circuit resource preliminary election first link between local and described source switching equipment of described source switching equipment, and by described source switching equipment preliminary election second link between described source switching equipment and described target BBU.
10. system according to claim 9, it is characterized in that: described residential quarter BBU comprises the base-band resource request module, link circuit resource request module, the first link preliminary election module;
Described base-band resource request module is used for sending the resource request of searching available base-band resource to described source switching equipment when receiving that request message is set up in the residential quarter;
Described link circuit resource request module is used for being emitted in the preliminary election request of preliminary election the second link between described source switching equipment and described target BBU to described source switching equipment after finding target BBU;
Described the first link preliminary election module is used for link circuit resource preliminary election first link between described residential quarter BBU and described source switching equipment according to described source switching equipment.
11. system according to claim 9 is characterized in that: described source switching equipment comprises that base-band resource searches module, the second link preliminary election module, the second link request module, the first link preferred module;
Described base-band resource is searched module, is used for when receiving the resource request of searching available base-band resource, broadcasts the message of searching base-band resource to the BBU that is connected with described source switching equipment or switching equipment;
Described the second link preliminary election module is used for link circuit resource preliminary election second link between described source switching equipment and described target BBU according to described target BBU;
Described the second link request module is used for after described the second complete the second link of link preliminary election module preliminary election, sends the preferred request of selecting optimum the second link to described target BBU.
Described the first link preferred module is used for the first link according to the BBU preliminary election of described residential quarter, selects the maximum link of free timeslot as optimum the first link from described the first link.
12. system according to claim 9 is characterized in that: described target BBU comprises the second link preferred module;
Described the second link preferred module is used for the second link according to the switching equipment preliminary election of described source, selects the maximum link of free timeslot as optimum the second link from described the second link.
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