CN103312480A - Method for raising Ir optical port transmission efficiency and RRU and BBU - Google Patents
Method for raising Ir optical port transmission efficiency and RRU and BBU Download PDFInfo
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Abstract
The invention provides a method for raising an Ir optical port transmission efficiency. The method comprises following steps: a one-to-one correspondence relation of various antenna carriers (AXC) on the Ir optical port and various paths with allocated carriers between a BBU and a RRU is configured; in an uplink direction, the RRU sends data of various carriers and various paths to the BBU via the AXC on the corresponding the Ir optical port according to the correspondence relation; and in a downlink direction, the data carried by each AXC on the Ir optical port is mapped as a corresponding carrier path data to process by the RRU according to the correspondence relation. The invention also provides the BBU and the RRU. With the help of the method of the invention, the Ir optical port transmission efficiency is raised and a strict synchronization between the BBU and the RRU is avoided.
Description
Technical field
The present invention relates to the resource distribution technology, particularly a kind of method and fiber optic stretch unit (RRU), baseband processing unit (BBU) that improves the defeated efficient of Ir light oral instructions.
Background technology
In TD equipment for radio access network NodeB, all carry out transfer of data by Ir usually between BBU and the RRU.Because Ir is based on time-multiplexed transmission system, in the time need reconfiguring existing carrier resource (as creating new carrier wave or deleting some existing carrier wave), can cause having some time fragments in the Ir transmission, thereby influence the efficiency of transmission of Ir.With an example this problem is described below, in Fig. 1, BBU is baseband processing unit, and each BBU comprises 4 carrier processing unit and export a light mouth, and RRU is RF processing unit, and Ir has comprised 12 time slots, is connected by Ir optical fiber between BBU and the RRU.In this residential quarter, 4 carrier waves have been created, wherein c0 is the carrier wave of 4path, takies time slot 0-3 in Ir, and c1 is the carrier wave of 4path, in Ir, take time slot 4-7, c2 is the carrier wave of 2path, takies time slot 8-9 in Ir, and c3 is the carrier wave of 2path, take time slot 10-11 in Ir, 4 carrier processing unit that 4 carrier waves are mapped on the BBP successively go to handle.
After carrier wave c0 and c2 deletion, in the Ir transmission link, can the free time go out 0,1,2,3,8,9 totally six transmission time slots, if these idle time slots no longer are used, then can reduce the efficient of transmission, and because the transmission time slot resource of Ir is limited, if use the new Ir transmission time slot in back when creating carrier wave next time, will cause exhausting of transfer resource after then repeatedly deleting carrier wave, as shown in Figure 2.
In the industry cycle, in order to take full advantage of the efficiency of transmission of Ir, usually adopt following method: the time slot that the carrier wave of all establishments is shared adopts compact arranged mode, new carrier wave is based upon the idle time slot of the back of existing carrier wave, the time slot 6-11 that is illustrated in fig. 3 shown below is 6 continuous idle time slots, but this method also reconfigures other carrier wave, in order to guarantee can not influence the normal use of other carrier wave, need that BBU and RRU reshuffle synchronously, BBU can send a synchronous frame number to RRU, but can make the software handling process complicated like this.
Summary of the invention
The invention provides method and RRU, the BBU of the defeated efficient of a kind of Ir of raising light oral instructions, can take full advantage of Ir light mouth resource, and avoid the strictness of BBU and RRU synchronous.
For achieving the above object, the present invention adopts following technical scheme:
A kind of method that improves the defeated efficient of Ir light oral instructions comprises:
One-to-one relationship between each bar footpath (path) of each carrier wave that each carrier wave antenna (AXC) on the Ir light mouth between baseband processing unit (BBU) and fiber optic stretch unit (RRU) is set and has distributed;
On up direction, RRU is transferred to BBU with the data of each each path of carrier wave by the AXC on its corresponding Ir light mouth according to described corresponding relation, and BBU handles the data that each AXC data carried by data on the Ir light mouth is mapped as its corresponding carrier wave path according to described corresponding relation;
On down direction, BBU is transferred to RRU with the data of each each path of carrier wave by the AXC on its corresponding Ir light mouth according to described corresponding relation, and RRU handles the data that each AXC data carried by data on the Ir light mouth is mapped as its corresponding carrier wave path according to described corresponding relation.
Preferably, each AXC and distributed the corresponding relation between each path of each carrier wave to be on the Ir light mouth between the described BBU of setting and RRU: set up identical routing table in RRU and BBU respectively, every route comprises an AXC numbering of Ir light mouth, carrier index and the path numbering of this AXC correspondence.
Preferably, carrier data being transferred to BBU at RRU on the up direction according to described corresponding relation is: RRU with the processing of each carrier path after in the carrier wave buffer unit of data sequential storage at RRU, wherein, a fixed address in the corresponding carrier wave buffer unit of each carrier path; Read the routing table among the RRU, obtain carrier index and the path numbering of each effective route, from the carrier wave buffer memory of RRU, read the data in corresponding carriers path according to this carrier index and path numbering, the Ir light mouth AXC that the data that read is written to described effective route numbers on the corresponding memory location, is transferred to BBU;
On up direction, BBU is mapped as the carrier path data according to described corresponding relation with AXC data carried by data on the Ir light mouth and is treated to: BBU is stored in each AXC data carried by data on the Ir light mouth in the Ir light mouth buffer memory among the BBU, wherein, a fixed address of the corresponding described Ir light mouth buffer memory of each AXC of Ir light mouth; Read the routing table among the BBU, obtain carrier index and the corresponding AXC numbering of carrier path numbering of each effective route, according to this AXC numbering reading corresponding data from described Ir light mouth buffer memory, the data that read are write on the memory location of described carrier index and carrier path numbering correspondence, handle.
Preferably, carrier data being transferred to RRU at BBU on the down direction according to described corresponding relation is: BBU with the processing of each carrier path after in the carrier wave buffer unit of data sequential storage at BBU, wherein, a fixed address in the corresponding carrier wave buffer unit of each carrier path; Read the routing table among the BBU, obtain carrier index and the path numbering of each effective route, from described carrier wave buffer memory, read the data in corresponding carriers path according to this carrier index and path numbering, the Ir light mouth AXC that the data that read is written to described effective route numbers on the corresponding memory location, is transferred to RRU;
RRU is mapped as the carrier path data according to described corresponding relation with AXC data carried by data on the Ir light mouth and is treated to:
RRU is stored in each AXC data carried by data on the Ir light mouth in the Ir light mouth buffer memory of RRU, wherein, and a fixed address of the corresponding described Ir light mouth buffer memory of each AXC of Ir light mouth; Read the routing table among the RRU, obtain carrier index and the corresponding AXC numbering of carrier path numbering of each effective route, according to this AXC numbering reading corresponding data from described Ir light mouth buffer memory, the data that read are write on the memory location of described carrier index and carrier path numbering correspondence, handle.
Preferably, when deletion during carrier wave, delete the corresponding relation between AXC on the corresponding Ir light with it of each paths mouth of this carrier wave.
Preferably, when newly-built carrier wave, distribute idle AXC to be used for the data of the described newly-built carrier wave of carrying, and the one-to-one relationship between each paths of setting up this newly-built carrier wave and the AXC that carries corresponding data.
A kind of fiber optic stretch unit (RRU) comprising: routing table and mapping block;
Described routing table memory module be used for to be preserved the one-to-one relationship between each AXC and each bar footpath (path) of having distributed each carrier wave on the Ir light mouth, the formation routing table;
Described mapping block is used at up direction, according to described corresponding relation the data of each path of each carrier wave is mapped on the AXC on its corresponding Ir light mouth; On down direction, each AXC data carried by data on the Ir light mouth is mapped as the data of its corresponding carrier path according to described corresponding relation.
Preferably, described mapping block comprises Ir buffer unit, route control unit and carrier wave buffer unit;
Every route in the described routing table memory module comprises an AXC numbering of Ir light mouth, carrier index and the carrier wave path numbering of this AXC correspondence;
Described Ir buffer unit, the data that are used for preserving Ir light mouth, each AXC of Ir light mouth numbers a fixed address of corresponding described Ir buffer unit, and this address is used for preserving described AXC data carried by data;
Described carrier wave buffer unit, each the path data that is used for preserving carrier wave, each path of each carrier wave numbers a fixed address of corresponding described carrier wave buffer unit, and this address is used for preserving the data of corresponding path;
Described route control unit, on up direction, be used for reading routing table, obtain carrier index and the path numbering of each effective route, number the data that from described carrier wave buffer unit, read corresponding carriers path according to this carrier index and path, and the AXC numbering corresponding according to carrier wave path numbering in described effective route, the data that read are written on the memory location corresponding with described AXC numbering in the Ir buffer unit; On down direction, be used for reading routing table, obtain carrier index and the corresponding AXC numbering of path numbering of each effective route, according to this AXC numbering reading corresponding data from described Ir light mouth buffer unit, the data that read are write on the memory location corresponding with described carrier index and path numbering in the described carrier wave buffer unit.
A kind of baseband processing unit (BBU) comprising: routing table memory module and mapping block;
Described routing table memory module be used for to be preserved the one-to-one relationship between each AXC and each bar footpath (path) of having distributed each carrier wave on the Ir light mouth, the formation routing table;
Described mapping block is used at down direction, according to described corresponding relation the data of each path of each carrier wave is mapped on the AXC on its corresponding Ir light mouth; On up direction, each AXC data carried by data on the Ir light mouth is mapped as the data of its corresponding carrier path according to described corresponding relation.
Preferably, described mapping block comprises Ir buffer unit, route control unit and carrier wave buffer unit;
Every route in the described routing table memory module comprises an AXC numbering of Ir light mouth, carrier index and the carrier wave path numbering of this AXC correspondence;
Described Ir buffer unit, the data that are used for preserving Ir light mouth, each AXC of Ir light mouth numbers a fixed address of corresponding described Ir buffer unit, and this address is used for preserving described AXC data carried by data;
Described carrier wave buffer unit, each the path data that is used for preserving carrier wave, each path of each carrier wave numbers a fixed address of corresponding described carrier wave buffer unit, and this address is used for preserving the data of corresponding path;
Described route control unit, on down direction, be used for reading routing table, obtain carrier index and the path numbering of each effective route, number the data that from described carrier wave buffer unit, read corresponding carriers path according to this carrier index and path, and the AXC numbering corresponding according to carrier wave path numbering in described effective route, the data that read are written on the memory location corresponding with described AXC numbering in the Ir buffer unit; On up direction, be used for reading routing table, obtain carrier index and the corresponding AXC numbering of path numbering of each effective route, according to this AXC numbering reading corresponding data from described Ir light mouth buffer unit, the data that read are write on the memory location corresponding with described carrier index and path numbering in the described carrier wave buffer unit.
As seen from the above technical solution, among the present invention, each AXC on the Ir light mouth between BBU and RRU is set and has distributed one-to-one relationship between each bar footpath (path) of each carrier wave; On up direction, RRU is transferred to BBU with the data of each each path of carrier wave by the AXC on its corresponding Ir light mouth according to corresponding relation,, BBU handles the data that each AXC data carried by data on the Ir light mouth is mapped as its corresponding carrier wave path according to described corresponding relation; On down direction, BBU is transferred to RRU with the data of each each path of carrier wave by the AXC on its corresponding Ir light mouth according to described corresponding relation, and RRU handles the data that each AXC data carried by data on the Ir light mouth is mapped as its corresponding carrier wave path according to described corresponding relation.By the way, the AxC that just can be implemented in the discontinuous idle time slot of Ir goes up the transmission carrier data, like this, and by the setting of AXC and carrier wave path corresponding relation, can utilize idle Ir light mouth resource to distribute to new carrier wave easily, improve the efficiency of transmission of Ir light mouth.When newly-built or deletion carrier wave, can the transmission relation of existing carrier wave not impacted yet, avoided the strictness of BBU and RRU synchronously.
Description of drawings
Fig. 1 is the Ir resource distribution schematic diagram of four carrier waves;
Fig. 2 is the Ir resource distribution schematic diagram of two carrier waves;
Fig. 3 is the Ir resource reconfiguration schematic diagram of two carrier waves;
Fig. 4 is the Ir resource distribution schematic diagram of three carrier waves in the inventive method;
Fig. 5 is method flow schematic diagram among the present invention;
Fig. 6 is the general structure schematic diagram of RRU among the present invention;
Fig. 7 is the concrete structure schematic diagram of RRU in the embodiment of the invention;
Fig. 8 is schematic diagram after the route of example of the present invention.
Embodiment
For making purpose of the present invention, technological means and advantage clearer, below in conjunction with accompanying drawing the present invention is described in further details.
On BBU and RRU, realize that the least unit of resource distribution when mutual is AxC.Based on this, basic thought of the present invention is: AXC and the carrier wave that has distributed of Ir light mouth are set up fixing corresponding relation, carry out transmission and the processing of data according to this corresponding relation.
Particularly, the present invention is in BBU and RRU inside, and the route between the AxC that realization carrier processing unit and Ir carry like this, just can be implemented in the last transmission of the AxC carrier data of the discontinuous idle time slot of Ir.Up, the carrier wave path after the carrier processing cell processing of RRU is routed to the AxC that Ir carries, and the AXC that in BBU Ir is carried is routed to the carrier wave path of BBU processing unit; Descending, carrier wave path after the carrier processing cell processing of BBU is routed to the AXC that Ir carries, and the AxC that in RRU Ir is carried is routed to the carrier wave path of RRU processing unit, route between the AxC that carrier processing unit and Ir by BBU, RRU carries forms a kind of fixing mapping relations, like this, not only can take full advantage of the time fragment among the Ir, even when the carrier wave configuration changed, mapping relations still remained unchanged, thereby realize the independence between the carrier wave.
Fig. 4 has provided under the inventive method newly-established 6path carrier wave c4 can be assigned to AxC0 among the Ir, and AxC1, AxC2, AxC3, AxC8, AxC9 go transmission.
Next, by specific embodiment specific implementation of the present invention is described.
Fig. 5 is for improving the method flow schematic diagram of the defeated efficient of Ir light oral instructions among the present invention.This method can be implemented in BBU shown in Figure 6 and RRU, and this BBU and RRU include: routing table memory module and mapping block.Wherein, preferably, the structure chart of mapping block comprises Ir buffer unit, carrier wave buffer unit and route control unit as shown in Figure 7.Shown in Fig. 5,6 and 7, concrete grammar comprises:
Specifically when corresponding relation is set, need in BBU and RRU, identical corresponding relation be set respectively.Specifically can realize by the routing table that in BBU and RRU, arranges.Routing table is used for the mapping relations of each AxC of storage between each path of the position of Ir light mouth and each carrier wave in the carrier processing unit, the route tableau format is as shown in table 1, route of each line display, wherein, Ir AxCnumber represents the numbering of AxC in the Ir light mouth, carrier number represents the numbering of carrier processing unit, and carrier path number represents the path numbering of each carrier wave.Whether preferably, can add list item valid flag in routing table, it is effective to be used for this route of expression.The routing table of top Fig. 4 example sees Table 1, article one route represent Ir light mouth be numbered 4 AxC and the path0 of carrier processing unit c1 shines upon.
| Valid flag | Ir AxC number | Carrrier number | Carrrier path number |
| valid | 4 | c1 | path0 |
| valid | 5 | c1 | path1 |
| valid | 6 | c1 | path2 |
| valid | 7 | c1 | path3 |
| valid | 10 | c3 | path0 |
| valid | 11 | c3 | path1 |
| valid | 0 | c4 | path0 |
| valid | 1 | c4 | path1 |
| valid | 2 | c4 | path2 |
| valid | 3 | c4 | path3 |
| valid | 8 | c4 | path4 |
| valid | 9 | c4 | path5 |
Table 1 routing table topology example
Particularly, on up direction, RRU is transferred to BBU with the data of each each path of carrier wave by the AXC on its corresponding Ir light mouth according to the corresponding relation of setting up in the step 501, and BBU handles the data that each AXC data carried by data on the Ir light mouth is mapped as its corresponding carrier wave path according to the corresponding relation of setting up in the step 501; On down direction, BBU is transferred to RRU with the data of each each path of carrier wave by the AXC on its corresponding Ir light mouth according to the corresponding relation of setting up in the step 501, and RRU handles the data that each AXC data carried by data on the Ir light mouth is mapped as its corresponding carrier wave path according to the corresponding relation of setting up in the step 501.
When realizing by Fig. 6 and BBU shown in Figure 7 and RRU, in BBU, the Ir buffer unit is used for the data of all AxC of buffer memory Ir light mouth, and the carrier wave buffer unit is used for all carrier data of buffer memory.Wherein, c0 buffer is used for the data of buffer memory carrier wave 0 all path, and the rest may be inferred for other buffer, and the routing table memory module is used for the storage routing table, routing table can dispose as required, and route control unit is used for the route between the carrier processing unit of control RRU and the AxC that Ir carries.
Particularly, among the RRU, at down direction, at first at the Ir interface each the AxC data among the Ir are buffered in the Ir buffer unit in proper order, fixing address in each AxC number corresponding Ir buffer unit, route control unit at first reads routing table then, obtain the corresponding Ir AxC numbering of each carrier wave path, go to read data with this Ir AxC numbering as the address of Ir buffer unit, the data of reading are written on the corresponding stored position of carrier wave buffer unit of back according to carrier wave path numbering at last.At up direction, at first be buffered in each carrier wave path data among the buffer in proper order at carrier processing unit interface place, fixing address in the corresponding carrier wave buffer unit of each carrier wave path, control module at first reads routing table then, obtain each carrier wave path numbering, go to read data with this carrier wave path numbering as the address of each carrier wave buffer unit, according to Ir AxC numbering the data of reading are written on the memory location of corresponding AXC in the Ir buffer unit at last, schematic diagram as shown in Figure 8 after the route.
Among the BBU, at up direction, at first at the Ir interface each the AxC data among the Ir are buffered in the Ir buffer unit in proper order, fixing address in each AxC number corresponding Ir buffer unit, route control unit at first reads routing table then, obtain the corresponding Ir AxC of each carrier wave path numbering, go to read data with this Ir AxC numbering as the address of Ir buffer unit, number according to carrier wave path at last the data of reading are written on the corresponding stored position of carrier wave buffer unit of back.At down direction, at first be buffered in each carrier wave path data among the buffer in proper order at carrier processing unit interface place, fixing address in the corresponding carrier wave buffer unit of each carrier wave path, control module at first reads routing table then, obtain each carrier wave path numbering, go to read data with this carrier wave path numbering as the address of each carrier wave buffer unit, according to Ir AxC numbering the data of reading are written on the memory location of corresponding AXC in the Ir buffer unit at last.In BBU, for the carrier wave in the assurance system is deleted when building, can not impact distributing carrier wave, preferably, further comprise following processing:
This step is for the processing of deleting carrier wave and newly-built carrier wave, during the deletion carrier wave, with the corresponding relation deletion relevant with this carrier wave of preserving.Particularly, can be directly in the routing table of BBU and RRU with the respective table entry deletion, perhaps also can be when routing table comprises list item valid flag the valid flag of corresponding route be set to invalid.
When newly-built carrier wave, determine the AXC of current free time, its branch is used in the data of the newly-built carrier wave of carrying, and sets up the relevant corresponding relation of this carrier wave.Particularly, can be directly in the routing table of BBU and RRU with newly-built routing iinformation, perhaps, also can determine that when routing table comprises list item valid flag valid flag is set to invalid route, utilize new routing iinformation to cover this invalid route entry.
So far, the method flow in the present embodiment is finished.After handling by the way, setting by AXC and carrier wave path corresponding relation, can utilize idle Ir light mouth resource to distribute to new carrier wave easily, the AxC that can be implemented in the discontinuous idle time slot of Ir goes up transmission RRU carrier data, improves the efficiency of transmission of Ir light mouth.When newly-built or deletion carrier wave, can the transmission relation of existing carrier wave not impacted yet, avoided the strictness of BBU and RRU synchronously.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (10)
1. one kind is improved the method that efficient is failed in the oral instructions of Ir light, it is characterized in that this method comprises:
One-to-one relationship between each bar footpath (path) of each carrier wave that each carrier wave antenna (AXC) on the Ir light mouth between baseband processing unit (BBU) and fiber optic stretch unit (RRU) is set and has distributed;
On up direction, RRU is transferred to BBU with the data of each each path of carrier wave by the AXC on its corresponding Ir light mouth according to described corresponding relation, and BBU handles the data that each AXC data carried by data on the Ir light mouth is mapped as its corresponding carrier wave path according to described corresponding relation;
On down direction, BBU is transferred to RRU with the data of each each path of carrier wave by the AXC on its corresponding Ir light mouth according to described corresponding relation, and RRU handles the data that each AXC data carried by data on the Ir light mouth is mapped as its corresponding carrier wave path according to described corresponding relation.
2. method according to claim 1, it is characterized in that, each AXC and distributed the corresponding relation between each path of each carrier wave to be on the Ir light mouth between the described BBU of setting and RRU: set up identical routing table in RRU and BBU respectively, every route comprises an AXC numbering of Ir light mouth, carrier index and the path numbering of this AXC correspondence.
3. method according to claim 2, it is characterized in that, carrier data being transferred to BBU at RRU on the up direction according to described corresponding relation is: RRU with the processing of each carrier path after in the carrier wave buffer unit of data sequential storage at RRU, wherein, a fixed address in the corresponding carrier wave buffer unit of each carrier path; Read the routing table among the RRU, obtain carrier index and the path numbering of each effective route, from the carrier wave buffer memory of RRU, read the data in corresponding carriers path according to this carrier index and path numbering, the Ir light mouth AXC that the data that read is written to described effective route numbers on the corresponding memory location, is transferred to BBU;
On up direction, BBU is mapped as the carrier path data according to described corresponding relation with AXC data carried by data on the Ir light mouth and is treated to: BBU is stored in each AXC data carried by data on the Ir light mouth in the Ir light mouth buffer memory among the BBU, wherein, a fixed address of the corresponding described Ir light mouth buffer memory of each AXC of Ir light mouth; Read the routing table among the BBU, obtain carrier index and the corresponding AXC numbering of carrier path numbering of each effective route, according to this AXC numbering reading corresponding data from described Ir light mouth buffer memory, the data that read are write on the memory location of described carrier index and carrier path numbering correspondence, handle.
4. method according to claim 2, it is characterized in that, carrier data being transferred to RRU at BBU on the down direction according to described corresponding relation is: BBU with the processing of each carrier path after in the carrier wave buffer unit of data sequential storage at BBU, wherein, a fixed address in the corresponding carrier wave buffer unit of each carrier path; Read the routing table among the BBU, obtain carrier index and the path numbering of each effective route, from described carrier wave buffer memory, read the data in corresponding carriers path according to this carrier index and path numbering, the Ir light mouth AXC that the data that read is written to described effective route numbers on the corresponding memory location, is transferred to RRU;
RRU is mapped as the carrier path data according to described corresponding relation with AXC data carried by data on the Ir light mouth and is treated to:
RRU is stored in each AXC data carried by data on the Ir light mouth in the Ir light mouth buffer memory of RRU, wherein, and a fixed address of the corresponding described Ir light mouth buffer memory of each AXC of Ir light mouth; Read the routing table among the RRU, obtain carrier index and the corresponding AXC numbering of carrier path numbering of each effective route, according to this AXC numbering reading corresponding data from described Ir light mouth buffer memory, the data that read are write on the memory location of described carrier index and carrier path numbering correspondence, handle.
5. according to arbitrary described method in the claim 1 to 4, it is characterized in that, when deletion during carrier wave, delete the corresponding relation between AXC on the corresponding Ir light with it of each paths mouth of this carrier wave.
6. according to arbitrary described method in the claim 1 to 4, it is characterized in that, when newly-built carrier wave, distribute idle AXC to be used for the data of the described newly-built carrier wave of carrying, and the one-to-one relationship between each paths of setting up this newly-built carrier wave and the AXC that carries corresponding data.
7. a fiber optic stretch unit (RRU) is characterized in that, this RRU comprises: routing table and mapping block;
Described routing table memory module be used for to be preserved the one-to-one relationship between each AXC and each bar footpath (path) of having distributed each carrier wave on the Ir light mouth, the formation routing table;
Described mapping block is used at up direction, according to described corresponding relation the data of each path of each carrier wave is mapped on the AXC on its corresponding Ir light mouth; On down direction, each AXC data carried by data on the Ir light mouth is mapped as the data of its corresponding carrier path according to described corresponding relation.
8. RRU according to claim 7 is characterized in that, described mapping block comprises Ir buffer unit, route control unit and carrier wave buffer unit;
Every route in the described routing table memory module comprises an AXC numbering of Ir light mouth, carrier index and the carrier wave path numbering of this AXC correspondence;
Described Ir buffer unit, the data that are used for preserving Ir light mouth, each AXC of Ir light mouth numbers a fixed address of corresponding described Ir buffer unit, and this address is used for preserving described AXC data carried by data;
Described carrier wave buffer unit, each the path data that is used for preserving carrier wave, each path of each carrier wave numbers a fixed address of corresponding described carrier wave buffer unit, and this address is used for preserving the data of corresponding path;
Described route control unit, on up direction, be used for reading routing table, obtain carrier index and the path numbering of each effective route, number the data that from described carrier wave buffer unit, read corresponding carriers path according to this carrier index and path, and the AXC numbering corresponding according to carrier wave path numbering in described effective route, the data that read are written on the memory location corresponding with described AXC numbering in the Ir buffer unit; On down direction, be used for reading routing table, obtain carrier index and the corresponding AXC numbering of path numbering of each effective route, according to this AXC numbering reading corresponding data from described Ir light mouth buffer unit, the data that read are write on the memory location corresponding with described carrier index and path numbering in the described carrier wave buffer unit.
9. a baseband processing unit (BBU) is characterized in that, this BBU comprises: routing table memory module and mapping block;
Described routing table memory module be used for to be preserved the one-to-one relationship between each AXC and each bar footpath (path) of having distributed each carrier wave on the Ir light mouth, the formation routing table;
Described mapping block is used at down direction, according to described corresponding relation the data of each path of each carrier wave is mapped on the AXC on its corresponding Ir light mouth; On up direction, each AXC data carried by data on the Ir light mouth is mapped as the data of its corresponding carrier path according to described corresponding relation.
10. BBU according to claim 9 is characterized in that, described mapping block comprises Ir buffer unit, route control unit and carrier wave buffer unit;
Every route in the described routing table memory module comprises an AXC numbering of Ir light mouth, carrier index and the carrier wave path numbering of this AXC correspondence;
Described Ir buffer unit, the data that are used for preserving Ir light mouth, each AXC of Ir light mouth numbers a fixed address of corresponding described Ir buffer unit, and this address is used for preserving described AXC data carried by data;
Described carrier wave buffer unit, each the path data that is used for preserving carrier wave, each path of each carrier wave numbers a fixed address of corresponding described carrier wave buffer unit, and this address is used for preserving the data of corresponding path;
Described route control unit, on down direction, be used for reading routing table, obtain carrier index and the path numbering of each effective route, number the data that from described carrier wave buffer unit, read corresponding carriers path according to this carrier index and path, and the AXC numbering corresponding according to carrier wave path numbering in described effective route, the data that read are written on the memory location corresponding with described AXC numbering in the Ir buffer unit; On up direction, be used for reading routing table, obtain carrier index and the corresponding AXC numbering of path numbering of each effective route, according to this AXC numbering reading corresponding data from described Ir light mouth buffer unit, the data that read are write on the memory location corresponding with described carrier index and path numbering in the described carrier wave buffer unit.
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| CN201210059470.6A CN103312480B (en) | 2012-03-08 | 2012-03-08 | Method for raising Ir optical port transmission efficiency and RRU and BBU |
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| CN113891352A (en) * | 2021-09-10 | 2022-01-04 | 京信网络***股份有限公司 | Carrier routing method, device, system and storage medium |
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| CN103312480B (en) | 2017-02-08 |
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