CN102045829A - Data transmission method of multimode base station and base station equipment - Google Patents
Data transmission method of multimode base station and base station equipment Download PDFInfo
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- CN102045829A CN102045829A CN2009102056890A CN200910205689A CN102045829A CN 102045829 A CN102045829 A CN 102045829A CN 2009102056890 A CN2009102056890 A CN 2009102056890A CN 200910205689 A CN200910205689 A CN 200910205689A CN 102045829 A CN102045829 A CN 102045829A
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Abstract
The embodiment of the invention discloses a data transmission method of a multimode base station and base station equipment. The method comprises the following steps of: acquiring the downlink parallel data in a first system and a super-frame synchronous signal in the first system; aligning the downlink parallel data in a second system to the downlink parallel data in the first system according to the super-frame synchronous signal in the first system; and merging the downlink parallel data in the second system and the downlink parallel data in the first system, which are aligned, and transmitting the merged data. The base station equipment comprises n acquiring module, an aligning module and a merging transmission module. The embodiment of the invention realizes the transmission of downlink data on the service surface and the control surface in various systems, has simple scheme, reduces the resource waste and decreases the implementation cost.
Description
Technical field
The embodiment of the invention relates to mobile communication technology, relates in particular to a kind of data transmission method and base station equipment of Multi-Mode Base Station.
Background technology
Along with development of wireless communication devices, Multi-Mode Base Station is developed into by the original single mode base station of only supporting a kind of wireless standard standard in the base station, Multi-Mode Base Station can be supported multiple (two or more) wireless standard standard simultaneously, as supporting universal mobile telecommunications system (Universal Mobile Telecommunication System simultaneously; Hereinafter to be referred as: UMTS) with Long Term Evolution project (Long Term Evolution; Hereinafter to be referred as: LTE) base station of two kinds of wireless standard standards is the UL dual-mode base station.Multi-Mode Base Station is superimposed by master control borad and the business board with different systems, by for example public open wave point (the Common Public Radio Interface of wave point link; Hereinafter to be referred as: CPRI) link is interconnected, to realize sharing the purpose of radio frequency hardware module.Therefore, communicating by letter between the business board of multiple standard and the same radio frequency hardware module becomes a key technology of Multi-Mode Base Station.
In the prior art, with the UL dual-mode base station is example, in down direction, receive the UMTS data of CPRI frame format by optical fiber or base station backboard cabling by the LTE business board, the UMTS data are separated the frame processing obtain UMTS service surface, chain of command data, then UMTS and LTE service surface, chain of command data are carried out the framing processing together, the CPRI frame format data that obtain after handling are sent to remote radio unit (RRU) (Remote Radio Unit; Hereinafter to be referred as: RRU) send.In up direction, the CPRI frame format data that RRU is received are divided into two-way, riches all the way delivers to LTE CPRI and separates frame module and separate frame and handle, get access to LTE service surface, chain of command data, another road sends to UMTS CPRI and separates frame module and separate frame and handle, and gets access to UMTS service surface, chain of command data.And before transmitting the data of multiple standard by Multi-Mode Base Station, the data of every kind of standard are also needing to carry out the framing process on the business board separately, and implementation procedure is complicated.
The inventor finds that there are the following problems at least in the prior art in realizing process of the present invention: when the business board of the multiple standard in Multi-Mode Base Station and same RRU communicated, implementation procedure was complicated, has caused the waste of resource, has increased the realization cost.
Summary of the invention
The embodiment of the invention is to provide a kind of data transmission method and base station equipment of Multi-Mode Base Station, realizes realizing on the service surface, chain of command of multiple standard the transmission of downlink data, and scheme is simple, reduces the wasting of resources, reduces and realizes cost.
To achieve these goals, the embodiment of the invention provides a kind of data transmission method of Multi-Mode Base Station, comprising:
Obtain the descending parallel data of first standard and the first standard superframe-synchronized signal;
According to the described first standard superframe-synchronized signal the descending parallel data of second standard is alignd with the descending parallel data of described first standard;
Descending parallel data of second standard and the descending parallel data of described first standard after the alignment are merged, and the data after will merging are transmitted.
The embodiment of the invention also provides a kind of base station equipment, comprising:
Acquisition module is used to obtain the descending parallel data of first standard and the first standard superframe-synchronized signal;
Alignment module is used for according to the described first standard superframe-synchronized signal that described acquisition module obtains the descending parallel data of second standard being alignd with the descending parallel data of described first standard;
Merge transport module, be used for descending parallel data of second standard and the descending parallel data of described first standard after the described alignment module alignment are merged, and the data after will merging are transmitted.
The data transmission method of a kind of Multi-Mode Base Station that the embodiment of the invention provides and base station equipment; according to the first standard superframe-synchronized signal two descending parallel datas of different systems are carried out registration process; data after the alignment are carried out phase or merging; and the data after will merging are transmitted; need not that the downlink data under the multiple standard is carried out repeatedly framing and conciliate the frame operation; realized realizing the transmission of downlink data on a pair of optical fiber on the service surface, chain of command of multiple standard; scheme is simple; reduce the wasting of resources, reduced the realization cost.
Description of drawings
Fig. 1 is the flow chart of the data transmission method embodiment one of Multi-Mode Base Station of the present invention;
Fig. 2 is the flow chart of the data transmission method embodiment two of Multi-Mode Base Station of the present invention;
Fig. 3 is the frame format schematic diagram under the CPRI agreement among the data transmission method embodiment two of Multi-Mode Base Station of the present invention;
Fig. 4 is the schematic diagram of downlink data transmission among the data transmission method embodiment two of Multi-Mode Base Station of the present invention;
Fig. 5 is the structural representation of basic frame among the data transmission method embodiment two of Multi-Mode Base Station of the present invention;
Fig. 6 is the schematic diagram of transmitting uplink data among the data transmission method embodiment two of Multi-Mode Base Station of the present invention;
Fig. 7 is the flow chart of the data transmission method embodiment three of Multi-Mode Base Station of the present invention;
Fig. 8 is the schematic diagram of downlink data transmission among the data transmission method embodiment three of Multi-Mode Base Station of the present invention;
Fig. 9 is the flow chart of the data transmission method embodiment four of Multi-Mode Base Station of the present invention;
Figure 10 is the schematic diagram of downlink data transmission among the data transmission method embodiment four of Multi-Mode Base Station of the present invention;
Figure 11 is the flow chart of the data transmission method embodiment five of Multi-Mode Base Station of the present invention;
Figure 12 is the schematic diagram of downlink data transmission among the data transmission method embodiment five of Multi-Mode Base Station of the present invention;
Figure 13 is the structural representation of base station equipment embodiment one of the present invention;
Figure 14 is the structural representation of base station equipment embodiment two of the present invention;
Figure 15 is the structural representation of base station equipment embodiment three of the present invention;
Figure 16 is the structural representation of base station equipment embodiment four of the present invention;
Figure 17 is the structural representation of base station equipment embodiment five of the present invention.
Embodiment
Below by drawings and Examples, the technical scheme of the embodiment of the invention is described in further detail.
Fig. 1 is the flow chart of the data transmission method embodiment one of Multi-Mode Base Station of the present invention, and as shown in Figure 1, present embodiment provides a kind of data transmission method of Multi-Mode Base Station, can comprise the steps:
Step 101 is obtained the descending parallel data of first standard and the first standard superframe-synchronized signal;
Step 102 is alignd the descending parallel data of second standard according to the described first standard superframe-synchronized signal with the descending parallel data of described first standard;
Step 103 descending parallel data of second standard and the descending parallel data of described first standard after the alignment are merged, and the data after will merging is transmitted.
Present embodiment provides a kind of data transmission method of Multi-Mode Base Station; according to the first standard superframe-synchronized signal two descending parallel datas of different systems are carried out registration process; data after the alignment are merged; and the data after will merging are transmitted; can realize realizing on the service surface, chain of command of multiple standard for example transmission on a pair of optical fiber of transmission of downlink data; scheme is simple, has reduced the wasting of resources, has reduced the realization cost.
Fig. 2 is the flow chart of the data transmission method embodiment two of Multi-Mode Base Station of the present invention, and as shown in Figure 2, present embodiment provides a kind of data transmission method of Multi-Mode Base Station, can comprise the steps:
In the present embodiment, the base station is a Multi-Mode Base Station, and wherein, dual-mode base station is a kind of in the Multi-Mode Base Station, is that example describes with the dual-mode base station in the present embodiment, the data transmission method of Multi-Mode Base Station and dual-mode base station similar.Dual-mode base station can by the CPRI link interconnected, the CPRI protocol definition related item of transmission, connection and control, comprising user face data, chain of command and chain of command transmission mechanism and synchronization scenario.Perhaps can pass through other agreement, for example (the Open Base Station Architecture Initiative of Open Base Station Architecture alliance; Hereinafter to be referred as: OBSAI) agreement is carried out the interconnected of base station.Present embodiment is the data transmission procedure of downstream direction, and present embodiment sends to the LTE business board with the data transmission method of UMTS standard and LTE standard by the data with the UMTS standard, and the data of UMTS standard and the data of LTE standard are merged.This step is to obtain the descending parallel data and the superframe-synchronized signal of one of them standard, and particularly, the descending parallel data of first standard can be the descending parallel data under the UMTS standard, and the first standard superframe-synchronized signal is the superframe-synchronized signal under the UMTS standard.This step can comprise: the descending serial data of first standard is gone here and there and changed, to obtain the descending parallel data of first standard and the first standard superframe-synchronized signal.Be illustrated in figure 4 as the schematic diagram of downlink data transmission among the data transmission method embodiment two of Multi-Mode Base Station of the present invention, come the data transmission method of the Multi-Mode Base Station of present embodiment is described in conjunction with Fig. 4.After descending serial data under the UMTS standard gone here and there and change, obtain descending parallel data under the UMTS standard and the superframe-synchronized signal under the UMTS standard.
After getting access to the descending parallel data of first standard and the first standard superframe-synchronized signal, recover the first standard radio frame signal of this first standard superframe-synchronized signal correspondence according to the first standard superframe-synchronized signal.Fig. 3 is the frame format schematic diagram under the CPRI agreement among the data transmission method embodiment two of Multi-Mode Base Station of the present invention; as shown in Figure 3; a radio frames (BFN) can comprise 150 superframes (Hyperframe); a superframe can comprise 256 basic frames (Basic Frame); wherein; the cycle of radio frames is 10ms, and the cycle of basic frame is 3.84MHz.In a basic frame, can comprise 16 words, corresponding index is W=0,1 ..., 15, wherein, the word of index W=0 correspondence is a control word, index W=1 ..., the word of 15 correspondences is a downlink data.The word length T of basic frame depends on the wire rate of CPRI, when the wire rate of CPRI is 614.4Mbps, and word length T=8; When the wire rate of CPRI is 1.2288Gbps, word length T=16; When wire rate is 2.4576Gbps, word length T=32.In this step, the first standard superframe-synchronized signal can be specially the first standard superframe-synchronized signal under the UMTS standard, and the first standard radio frame signal can be specially the radio frame signal under the UMTS standard.This step is according to the superframe-synchronized signal under the UMTS standard, recovers the radio frame signal under the UMTS standard, and the cycle of this radio frame signal can be 10ms, and this radio frame signal is corresponding with the superframe-synchronized signal under the UMTS standard.
After recovering and getting access to the first standard radio frame signal, can with reference to aligned signal descending parallel data of first standard and the descending parallel data of second standard be carried out registration process by this with this first standard radio frame signal as the reference aligned signal.In the present embodiment, the first standard radio frame signal is the radio frame signal under the UMTS standard, and the descending parallel data of first standard is the descending parallel data under the UMTS standard, and the descending parallel data of second standard is the descending parallel data under the LTE standard.With reference to shown in Figure 4, the LTE business board receives local wireless frame signal, LTE service surface data and LTE chain of command data, local wireless frame signal, LTE service surface data and LTE chain of command data is carried out framing handle, and generates the descending parallel data under the LTE standard.In the present embodiment with the radio frame signal under the UMTS standard as the reference aligned signal, with reference to aligned signal descending parallel data under the UMTS standard and the descending parallel data under the LTE standard that receives are carried out registration process by this.Present embodiment by with the radio frame signal under the UMTS standard as the reference aligned signal, make that the radio frame signal under the UMTS standard is alignd with the radio frame signal realization under the LTE standard.In the time of can thinking the downlink data that carries out at the same time under the UMTS standard and the downlink data transmission under the LTE standard, during radio frame signal under receiving the UMTS standard, just begin to transmit the descending parallel data under the LTE standard, make that the transmission of the descending parallel data under two kinds of standards can synchronization.
After present embodiment aligns the descending parallel data of second standard and the descending parallel data of first standard, descending parallel data of second standard and the descending parallel data of first standard after the alignment are merged, and the descending parallel data after will merging then carries out and goes here and there being converted to descending serial data.Particularly, the descending parallel data of second standard after the alignment can be carried out mutually with the descending parallel data of first standard or merges in the present embodiment, phase in the present embodiment or merge into merges the descending parallel data under two kinds of standards, and the concrete mode of merging is for adopting the mode of exclusive disjunction.Present embodiment with the radio frame signal under the UMTS standard as the reference aligned signal, make the radio frame signal under the UMTS standard align with the radio frame signal realization under the LTE standard, also realize the alignment of the downlink data under two kinds of standards thus, also realized the alignment of the basic frame under two kinds of standards simultaneously.Referring to Fig. 4, this step is to close the road module in the LTE business board, to carry out mutually with the descending parallel data under the UMTS standard that receives or merge through the descending parallel data under the LTE standard after the alignment, descending parallel data after will merging then is converted to descending serial data and transmits, and for example should descending serial data send among the RRU by optical fiber.
Further, position shared when the descending parallel data of first standard in the present embodiment is transmitted in basic frame with the descending parallel data of described second standard is different, and word or byte shared when promptly the descending parallel data of first standard is transmitted in basic frame with the descending parallel data of second standard are different.Carrying out mutually or when merging of descending parallel data of first standard and the descending parallel data of second standard, need to guarantee word difference shared when descending parallel data under two kinds of standards is transmitted in the basic frame of CPRI, promptly the position of depositing in the basic frame of CPRI is not overlapping.Can be by carrying out CPRI when mapping, be several parts with the space segmentation of the basic frame of CPRI, the descending parallel data under each standard takies a part wherein respectively.
Fig. 5 is the structural representation of basic frame among the data transmission method embodiment two of Multi-Mode Base Station of the present invention, and as shown in Figure 5, present embodiment is that 1.2288Gbps is that example describes with the wire rate of CPRI.When the wire rate of CPRI is 1.2288Gbps, comprise 16 half-words in the basic frame, wherein, the size of each half-word is 16bit, 15 half-words can be used for transport service face data, and the another one half-word is used for transmitting CPRI chain of command data, in Fig. 5, No. 0 half-word is used for transmitting the chain of command data, and the 1-15 half-word is used for transport service face data.Particularly, descending parallel data under the UMTS standard can take the 1-2 half-word in each basic frame when transmitting in the basic frame of CPRI, the descending parallel data under the LTE standard can take the 8-15 half-word in each basic frame when transmitting in the basic frame of CPRI.
Particularly, in the present embodiment, descending parallel data of first standard and the descending parallel data of second standard are configured the situation that takies of basic frame sample rate, the standard number according to number of antennas, descending parallel data during transmission in basic frame.When carrying out downlink data transmission, the concrete filling situation of the basic frame of CPRI can be carried out flexible configuration according to the sample rate and the standard number of number of antennas, descending parallel data, only needs not overlapping the getting final product of the filling position of business datum in the basic frame of CPRI under the various standards of assurance.
The data transmission method of the Multi-Mode Base Station that present embodiment provides, after the alignment of carrying out two kinds of descending parallel datas under the standard, can realize the phase or the merging of service surface data, also can realize simultaneously the phase or the merging of chain of command data, for example realize high speed data link control (High-Level Data Link Control; Hereinafter to be referred as: HDLC) phase of data or merging, realize two HDLC passages by a CPRI link, to transmit two kinds of HDLC data under the standard.The phase of the chain of command data under the multiple standard or the realization of merging, position shared when the HDLC data under the various standards are transmitted in the control word of basic frame is also different, can be with the different bytes of the control word in the basic frame of CPRI of the HDLC data map under the various standards, also can be by control word being divided into different odd even control words, the HDLC data under the different systems are mapped in respectively in strange control word, the even control word.
The foregoing description is the data transmission procedure of downstream direction; the data transmission procedure of corresponding upstream direction as shown in Figure 6; Fig. 6 is that example describes with the UL dual-mode base station still for the schematic diagram of transmitting uplink data among the data transmission method embodiment two of Multi-Mode Base Station of the present invention.After the bimodulus uplink serial data that receives the RRU transmission, by string and conversion this bimodulus uplink serial data is converted to the up parallel data of bimodulus, recover the superframe-synchronized signal simultaneously, the up parallel data of bimodulus after will changing then is divided into identical two-way respectively with the superframe-synchronized signal; Obtain the bimodulus uplink serial data after wherein one tunnel process and string are changed, this bimodulus uplink serial data is directly sent to the UMTS business board carry out up reception processing, to obtain UMTS service surface data and UMTS chain of command data; Corresponding reception processing such as frame are then separated on another road, to obtain LTE service surface data and LTE chain of command data.
The data transmission method that it is pointed out that the dual-mode base station of the data transmission method of the above base station of bimodulus and above-mentioned introduction is similarly, just need carry out more frequently data forwarding, data mutually or operations such as merging.To support UMTS, LTE and global system for mobile communications (Global System for Mobile Communication; Hereinafter to be referred as: GSM) the GUL three mould base stations of three kinds of standards are example; in downstream direction; descending parallel data under the GSM standard can on the UMTS business board with the UMTS standard under descending parallel data carry out mutually or merge; with mutually or the descending parallel data after merging on the LTE business board with the LTE standard under descending parallel data carry out mutually or merge, thereby obtain the descending parallel data of three moulds.For upstream direction, only need the up parallel data of three moulds is carried out twice forwarding, be example with the GUL three mould base stations of supporting UMTS, LTE and three kinds of standards of GSM.In upstream direction, by string and conversion this three moulds uplink serial data is being converted to the up parallel data of three moulds, the up parallel data of three moulds after the conversion is divided into identical three the tunnel, wherein after up parallel data process of one tunnel three mould and the string conversion process, directly send to the UMTS business board and carry out up reception processing, after another road process and the string conversion process, be forwarded to the LTE business board and carry out up reception processing, after Third Road process and the string conversion process, be forwarded to the gsm service plate and carry out up reception processing.
Present embodiment provides a kind of data transmission method of Multi-Mode Base Station; recover the first standard radio frame signal by the first standard superframe-synchronized signal that obtains; with this first standard radio frame signal as the reference aligned signal; the descending parallel data of second standard is alignd with the descending parallel data of first standard with reference to aligned signal by this; descending parallel data under two kinds of standards after will aliging is then carried out phase or is merged; and the descending parallel data after will merging is transferred to RRU; present embodiment has been realized the service surface of multiple standard; realize the transmission of downlink data on a pair of optical fiber for example on the chain of command; scheme is simple; reduce the wasting of resources, reduced the realization cost.
Fig. 7 is the flow chart of the data transmission method embodiment three of Multi-Mode Base Station of the present invention, and as shown in Figure 7, present embodiment provides the data transmission method of another kind of Multi-Mode Base Station, can comprise the steps:
In the present embodiment directly with the first standard superframe-synchronized signal as the reference aligned signal, satisfy the phase or the condition of two kinds of descending parallel datas under the standard by this with reference to aligned signal, the descending parallel data of second standard is alignd with the descending parallel data of first standard.In the present embodiment, the first standard superframe-synchronized signal is the superframe-synchronized signal under the UMTS standard, and the descending parallel data of first standard is the descending parallel data under the UMTS standard, and the descending parallel data of second standard is the descending parallel data under the LTE standard.Fig. 8 is the schematic diagram of downlink data transmission among the data transmission method embodiment three of Multi-Mode Base Station of the present invention; the LTE business board receives local wireless frame signal, LTE service surface data and LTE chain of command data; local wireless frame signal, LTE service surface data and LTE chain of command data are carried out framing handle, generate the descending parallel data under the LTE standard.In the present embodiment with the superframe-synchronized signal under the UMTS standard as the reference aligned signal, with reference to aligned signal descending parallel data under the UMTS standard and the descending parallel data under the LTE standard that receives are carried out registration process by this.Present embodiment by with the superframe-synchronized signal under the UMTS standard as the reference aligned signal, make that the radio frame signal under the UMTS standard is alignd with the radio frame signal realization under the LTE standard.In the time of can thinking the downlink data that carries out at the same time under the UMTS standard and the downlink data transmission under the LTE standard, during superframe-synchronized signal under receiving the UMTS standard, just begin to transmit the descending parallel data under the LTE standard, make that the transmission of the descending parallel data under two kinds of standards can synchronization.
Present embodiment provides a kind of data transmission method of Multi-Mode Base Station; by the first standard superframe-synchronized signal that will obtain as the reference aligned signal; the descending parallel data of second standard is alignd with the descending parallel data of first standard with reference to aligned signal by this; descending parallel data under two kinds of standards after will aliging is then carried out phase or is merged; and the descending parallel data after will merging is transferred to RRU; present embodiment has been realized the service surface of multiple standard; realize the transmission of downlink data on a pair of optical fiber for example on the chain of command; reduced the realization cost; scheme is simple; reduce the wasting of resources, reduced the realization cost.
Fig. 9 is the flow chart of the data transmission method embodiment four of Multi-Mode Base Station of the present invention, and as shown in Figure 9, present embodiment provides the data transmission method of another kind of Multi-Mode Base Station, can comprise the steps:
Step 901 is obtained the descending parallel data of first standard and the first standard superframe-synchronized signal, and this step can be similar with the step 201 in the foregoing description, repeats no more herein.
Step 902 is obtained the basic frame signal of first standard according to the first standard superframe-synchronized signal.
Step 903 as the reference aligned signal, is alignd the basic frame signal of first standard with the descending parallel data of second standard by the reference aligned signal with the descending parallel data of first standard.
In the present embodiment directly with the basic frame signal of first standard as the reference aligned signal, satisfy the phase or the condition of two kinds of descending parallel datas under the standard by this with reference to aligned signal, the descending parallel data of second standard is alignd with the descending parallel data of first standard.In the present embodiment, the basic frame signal of first standard is the basic frame signal under the UMTS standard, and the descending parallel data of first standard is the descending parallel data under the UMTS standard, and the descending parallel data of second standard is the descending parallel data under the LTE standard.Figure 10 is the schematic diagram of downlink data transmission among the data transmission method embodiment four of Multi-Mode Base Station of the present invention; the LTE business board receives local wireless frame signal, LTE service surface data and LTE chain of command data; local wireless frame signal, LTE service surface data and LTE chain of command data are carried out framing handle, generate the descending parallel data under the LTE standard.In the present embodiment with the basic frame signal under the UMTS standard as the reference aligned signal, with reference to aligned signal descending parallel data under the UMTS standard and the descending parallel data under the LTE standard that receives are carried out registration process by this.In the time of can thinking the downlink data that carries out at the same time under the UMTS standard and the downlink data transmission under the LTE standard, during superframe-synchronized signal under receiving the UMTS standard, just begin to transmit the descending parallel data under the LTE standard, make that the transmission of the descending parallel data under two kinds of standards can synchronization.
Step 904 is carried out the descending parallel data of second standard after the alignment mutually with the descending parallel data of first standard or is merged, and the data after will merging transmit, and this step can be similar with the step 204 in the foregoing description, repeats no more herein.
Present embodiment provides a kind of data transmission method of Multi-Mode Base Station; obtain the basic frame signal of first standard by the first standard superframe-synchronized signal that obtains; with basic frame signal as the reference aligned signal; the descending parallel data of second standard is alignd with the descending parallel data of first standard with reference to aligned signal by this; descending parallel data under two kinds of standards after will aliging is then carried out phase or is merged; and the descending parallel data after will merging is transferred to RRU; present embodiment has been realized the service surface of multiple standard; realize the transmission of downlink data on a pair of optical fiber for example on the chain of command; scheme is simple; reduce the wasting of resources, reduced the realization cost.
Figure 11 is the flow chart of the data transmission method embodiment five of Multi-Mode Base Station of the present invention, and as shown in figure 11, present embodiment provides the data transmission method of another kind of Multi-Mode Base Station, can comprise the steps:
The first standard radio frame signal that directly will recover in the present embodiment is as the second standard radio frame signal of the descending parallel data of second standard, satisfy the phase or the condition of two kinds of descending parallel datas under the standard according to this first standard radio frame signal, the descending parallel data of second standard is alignd with the descending parallel data of first standard.In the present embodiment, be that example describes still with the UL dual-mode base station.Figure 12 is the schematic diagram of downlink data transmission among the data transmission method embodiment five of Multi-Mode Base Station of the present invention; the LTE business board receives local wireless frame signal, LTE service surface data and LTE chain of command data; local wireless frame signal, LTE service surface data and LTE chain of command data are carried out framing handle, generate the descending parallel data under the LTE standard.In the present embodiment with the radio frame signal under the UMTS standard as under the LTE standard radio frame signal, make the radio frame signal under the UMTS standard realize aliging by the radio frame signal under this UMTS standard with radio frame signal under the LTE standard.In the time of can thinking the downlink data that carries out at the same time under the UMTS standard and the downlink data transmission under the LTE standard, during radio frames synchronizing signal under the UMTS standard that recovers, just begin to transmit the descending parallel data under the LTE standard, make that the transmission of the descending parallel data under two kinds of standards can synchronization.
Present embodiment provides a kind of data transmission method of Multi-Mode Base Station; by the first standard radio frame signal that will obtain radio frame signal as the descending parallel data of second standard; by this first standard radio frame signal the descending parallel data of second standard is alignd with the descending parallel data of first standard; descending parallel data under two kinds of standards after will aliging is then carried out phase or is merged; and the descending parallel data after will merging is transferred to RRU; present embodiment has been realized the service surface of multiple standard; realize the transmission of downlink data on a pair of optical fiber for example on the chain of command; scheme is simple; reduce the wasting of resources, reduced the realization cost.
Figure 13 is the structural representation of base station equipment embodiment one of the present invention, and as shown in figure 13, present embodiment provides a kind of base station equipment, can comprise acquisition module 1301, alignment module 1302 and merge transport module 1303.Wherein, acquisition module 1301 is used to obtain the descending parallel data of first standard and the first standard superframe-synchronized signal; Alignment module 1302 is used for according to the first standard superframe-synchronized signal that acquisition module 1301 obtains the descending parallel data of second standard being alignd with the descending parallel data of first standard; Merge transport module 1303 and be used for descending parallel data of second standard and the descending parallel data of first standard after alignment module 1302 alignment are merged, and the data after will merging are transmitted.Particularly, the merging in the present embodiment can or merge for phase.It is pointed out that above is that example describes with the dual-mode base station, and Multi-Mode Base Station and dual-mode base station are similar, just need carry out operations such as data forwarding, data phase or merging more frequently when transfer of data.
Further, position shared when the descending parallel data of first standard in the present embodiment is transmitted in basic frame with the descending parallel data of second standard is different, and word or byte shared when promptly the descending parallel data of first standard is transmitted in basic frame with the descending parallel data of second standard are different.Carrying out mutually or when merging of descending parallel data of first standard and the descending parallel data of second standard, need to guarantee word or byte difference shared when descending parallel data under two kinds of standards is transmitted in the basic frame of CPRI, promptly the position of depositing in the basic frame of CPRI is not overlapping.Can be by carrying out CPRI when mapping, be several parts with the space segmentation of the basic frame of CPRI, the descending parallel data under each standard takies a part wherein respectively.
Particularly, in the present embodiment, descending parallel data of first standard and the descending parallel data of second standard are configured the situation that takies of basic frame sample rate, the standard number according to number of antennas, descending parallel data during transmission in basic frame.When carrying out downlink data transmission, the concrete filling situation of the basic frame of CPRI can be carried out flexible configuration according to the sample rate and the standard data of number of antennas, descending parallel data, only needs not overlapping the getting final product of the filling position of business datum in the basic frame of CPRI under the various standards of assurance.
Present embodiment provides a kind of base station equipment, by acquiring unit, alignment unit and transmission unit are set, according to the first standard superframe-synchronized signal two descending parallel datas of different systems are carried out registration process, data after the alignment are carried out phase or merging, and the data after will merging transmit, and have realized realizing on the service surface, chain of command of multiple standard the transmission of downlink data on a pair of optical fiber for example, and scheme is simple, reduce the wasting of resources, reduced the realization cost.
Figure 14 is the structural representation of base station equipment embodiment two of the present invention, and as shown in figure 14, present embodiment is on the basis of above-mentioned embodiment one shown in Figure 13, and alignment module 1302 wherein can comprise first recovery unit 1312 and first alignment unit 1322.First recovery unit 1312 is used for recovering the first standard radio frame signal according to the described first standard superframe-synchronized signal that acquisition module 1301 gets access to.The first standard radio frame signal that first alignment unit 1322 is used for first recovery unit 1312 is recovered is alignd the descending parallel data of second standard with reference to aligned signal by described as the reference aligned signal with the descending parallel data of described first standard.
Present embodiment provides a kind of base station equipment, by first recovery unit and first alignment unit are set in alignment unit, recover the first standard radio frame signal by the first standard superframe-synchronized signal that obtains, with this first standard radio frame signal as the reference aligned signal, the descending parallel data of second standard is alignd with the descending parallel data of first standard with reference to aligned signal by this, descending parallel data under two kinds of standards after will aliging is then carried out phase or is merged, and the descending parallel data after will merging is transferred to RRU, present embodiment has been realized the service surface of multiple standard, realize the transmission of downlink data on a pair of optical fiber for example on the chain of command, scheme is simple, reduce the wasting of resources, reduced the realization cost.
Figure 15 is the structural representation of base station equipment embodiment three of the present invention, and as shown in figure 15, present embodiment is on the basis of above-mentioned embodiment one shown in Figure 13, and alignment module 1302 wherein can comprise second alignment unit 1332.The first standard superframe-synchronized signal that second alignment unit 1332 is used for acquisition module 1301 is obtained aligns the descending parallel data of second standard by the reference aligned signal as the reference aligned signal with the descending parallel data of described first standard.
Present embodiment provides a kind of base station equipment, by second alignment unit is set in alignment unit, by the first standard superframe-synchronized signal that will obtain as the reference aligned signal, the descending parallel data of second standard is alignd with the descending parallel data of first standard with reference to aligned signal by this, descending parallel data under two kinds of standards after will aliging is then carried out phase or is merged, and the descending parallel data after will merging is transferred to RRU, present embodiment has been realized the service surface of multiple standard, realize the transmission of downlink data on a pair of optical fiber for example on the chain of command, scheme is simple, reduce the wasting of resources, reduced the realization cost.
Figure 16 is the structural representation of base station equipment embodiment four of the present invention, and as shown in figure 16, present embodiment is on the basis of above-mentioned embodiment one shown in Figure 13, and alignment module 1302 wherein can comprise acquiring unit 1342 and the 3rd alignment unit 1352.Wherein, acquiring unit 1342 is used for obtaining the basic frame signal of first standard according to the first standard superframe-synchronized signal that acquisition module 1301 obtains.The basic frame signal of described first standard that the 3rd alignment unit 1352 is used for acquiring unit 1342 is got access to is alignd the descending parallel data of second standard with reference to aligned signal by described as the reference aligned signal with the descending parallel data of described first standard.
Present embodiment provides a kind of base station equipment, by acquiring unit and the 3rd alignment unit are set in alignment unit, obtain the basic frame signal of first standard by the first standard superframe-synchronized signal that obtains, with basic frame signal as the reference aligned signal, the descending parallel data of second standard is alignd with the descending parallel data of first standard with reference to aligned signal by this, descending parallel data under two kinds of standards after will aliging is then carried out phase or is merged, and the descending parallel data after will merging is transferred to RRU, present embodiment has been realized the service surface of multiple standard, realize the transmission of downlink data on a pair of optical fiber for example on the chain of command, scheme is simple, reduce the wasting of resources, reduced the realization cost.
Figure 17 is the structural representation of base station equipment embodiment five of the present invention, and as shown in figure 17, present embodiment is on the basis of above-mentioned embodiment one shown in Figure 13, and alignment module 1302 wherein can comprise second recovery unit 1362 and the 4th alignment unit 1372.Wherein, second recovery unit 1362 is used for recovering according to the first standard superframe-synchronized signal that acquisition module 1301 obtains the first standard radio frame signal of the described first standard superframe-synchronized signal correspondence.The described first standard radio frame signal that the 4th alignment unit 1372 is used for second recovery unit 1362 is recovered is alignd the descending parallel data of second standard according to the described first standard radio frame signal as the second standard radio frame signal with the descending parallel data of described first standard.
Present embodiment provides a kind of base station equipment, by second recovery unit and the 4th alignment unit are set in alignment unit, by the first standard radio frame signal that will obtain radio frame signal as the descending parallel data of second standard, by this first standard radio frame signal the descending parallel data of second standard is alignd with the descending parallel data of first standard, descending parallel data under two kinds of standards after will aliging is then carried out phase or is merged, and the descending parallel data after will merging is transferred to RRU, present embodiment has been realized the service surface of multiple standard, realize the transmission of downlink data on a pair of optical fiber for example on the chain of command, scheme is simple, reduce the wasting of resources, reduced the realization cost.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that previous embodiment is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of embodiment of the invention technical scheme.
Claims (16)
1. the data transmission method of a Multi-Mode Base Station is characterized in that, comprising:
Obtain the descending parallel data of first standard and the first standard superframe-synchronized signal;
According to the described first standard superframe-synchronized signal the descending parallel data of second standard is alignd with the descending parallel data of described first standard;
Descending parallel data of second standard and the descending parallel data of described first standard after the alignment are merged, and the data after will merging are transmitted.
2. method according to claim 1 is characterized in that, the described descending parallel data of second standard alignment with the descending parallel data of described first standard according to the described first standard superframe-synchronized signal comprises:
Recover the first standard radio frame signal according to the described first standard superframe-synchronized signal;
The described first standard radio frame signal as the reference aligned signal, is alignd the descending parallel data of second standard with reference to aligned signal by described with the descending parallel data of described first standard.
3. method according to claim 1 is characterized in that, the described descending parallel data of second standard alignment with the descending parallel data of described first standard according to the described first standard superframe-synchronized signal comprises:
The described first standard superframe-synchronized signal as the reference aligned signal, is alignd the descending parallel data of second standard with reference to aligned signal by described with the descending parallel data of described first standard.
4. method according to claim 1 is characterized in that, the described descending parallel data of second standard alignment with the descending parallel data of described first standard according to the described first standard superframe-synchronized signal comprises:
Obtain the basic frame signal of first standard according to the described first standard superframe-synchronized signal;
The basic frame signal of described first standard as the reference aligned signal, is alignd the descending parallel data of second standard with reference to aligned signal by described with the descending parallel data of described first standard.
5. method according to claim 1 is characterized in that, the described descending parallel data of second standard alignment with the descending parallel data of described first standard according to the described first standard superframe-synchronized signal comprises:
Recover the first standard radio frame signal of the described first standard superframe-synchronized signal correspondence according to the described first standard superframe-synchronized signal;
With the described first standard radio frame signal as the second standard radio frame signal;
According to the described second standard radio frame signal the descending parallel data of second standard is alignd with the descending parallel data of described first standard.
6. according to each described method among the claim 1-5, it is characterized in that position shared when the descending parallel data of described first standard is transmitted in basic frame with the descending parallel data of described second standard is different.
7. method according to claim 6, it is characterized in that descending parallel data of described first standard and the descending parallel data of described second standard are configured the situation that takies of described basic frame sample rate and the standard number according to number of antennas, descending parallel data during transmission in basic frame.
8. method according to claim 1 is characterized in that, described merging into mutually or merging.
9. a base station equipment is characterized in that, comprising:
Acquisition module is used to obtain the descending parallel data of first standard and the first standard superframe-synchronized signal;
Alignment module is used for according to the described first standard superframe-synchronized signal that described acquisition module obtains the descending parallel data of second standard being alignd with the descending parallel data of described first standard;
Merge transport module, be used for descending parallel data of second standard and the descending parallel data of described first standard after the described alignment module alignment are merged, and the data after will merging are transmitted.
10. base station equipment according to claim 9 is characterized in that, described alignment module comprises:
First recovery unit is used for recovering the first standard radio frame signal according to the described first standard superframe-synchronized signal that described acquisition module gets access to;
First alignment unit, the described first standard radio frame signal that is used for described first recovery unit is recovered is alignd the descending parallel data of second standard with reference to aligned signal by described as the reference aligned signal with the descending parallel data of described first standard.
11. base station equipment according to claim 9 is characterized in that, described alignment module comprises:
Second alignment unit, the described first standard superframe-synchronized signal that is used for described acquisition module is obtained are alignd the descending parallel data of second standard with reference to aligned signal by described as the reference aligned signal with the descending parallel data of described first standard.
12. base station equipment according to claim 9 is characterized in that, described alignment module comprises:
Acquiring unit is used for obtaining the basic frame signal of first standard according to the described first standard superframe-synchronized signal that described acquisition module obtains;
The 3rd alignment unit, the basic frame signal of described first standard that is used for described acquiring unit is got access to are alignd the descending parallel data of second standard with reference to aligned signal by described as the reference aligned signal with the descending parallel data of described first standard.
13. base station equipment according to claim 9 is characterized in that, described alignment module comprises:
Second recovery unit is used for recovering according to the described first standard superframe-synchronized signal that described acquisition module obtains the first standard radio frame signal of the described first standard superframe-synchronized signal correspondence;
The 4th alignment unit, the described first standard radio frame signal that is used for described second recovery unit is recovered is alignd the descending parallel data of second standard according to the described second standard radio frame signal as the second standard radio frame signal with the descending parallel data of described first standard.
14., it is characterized in that position shared when the descending parallel data of described first standard is transmitted in basic frame with the descending parallel data of described second standard is different according to each described base station equipment among the claim 9-13.
15. base station equipment according to claim 14, it is characterized in that descending parallel data of described first standard and the descending parallel data of described second standard are configured the situation that takies of described basic frame sample rate, the standard number according to number of antennas, descending parallel data during transmission in basic frame.
16. base station equipment according to claim 9 is characterized in that, described merging into mutually or merging.
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