CN102340470A - Baseband processing system and method - Google Patents
Baseband processing system and method Download PDFInfo
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- CN102340470A CN102340470A CN2010102322340A CN201010232234A CN102340470A CN 102340470 A CN102340470 A CN 102340470A CN 2010102322340 A CN2010102322340 A CN 2010102322340A CN 201010232234 A CN201010232234 A CN 201010232234A CN 102340470 A CN102340470 A CN 102340470A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Abstract
The invention discloses a baseband processing system and method. The baseband processing system comprises a transmission module, a baseband processing module, a WiMAX (Worldwide Interoperability for Microwave Access) transaction processing module and an LTE-TD (Long Term Evolution-Time Division) transaction processing module, wherein the transmission module is used for receiving baseband data; the baseband processing module used for performing baseband configuration according to data formats of the baseband data and sending configured baseband data to the WiMAX transaction processing module or the LTE-TD (Long Term Evolution-Time Division) transaction processing module according to the data formats, and the data formats comprise a WiMAX format and an LTE-TD format; the WiMAX transaction processing module is used for performing WiMAX format processing on the configured baseband data; and the LTE-TD transaction processing module is used for performing LTE-TD format processing on the configured baseband data. With the baseband processing system and the method disclosed by the invention, unified baseband processing of the baseband data on the baseband processing module is realized, the hardware reuse rate of the system is increased, and the system cost is reduced.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of band processing system and method.
Background technology
OFDM (Orthogonal Frequency Division Multiplexing; Abbreviating OFDM as) scheme or OFDM insert (Orthogonal Frequency Division Multiplexing Access abbreviates OFDMA as) and obtained using widely.In the OFDM technology, use a plurality of separate subcarriers to increase efficient.At transmission/receiving terminal the process that the subcarrier of these a plurality of mutual opposition carries out modulating/demodulating is similar to inverse discrete Fourier transformer inverse-discrete (Inverse Discrete Fourier Transfer respectively; Abbreviate IDFT as) and the implementation of DFT (Discrete Fourier Transfer abbreviates DFT as).Equally also can construct these subcarriers by fast Flourier (Fast Fourier Transfer abbreviates FFT as).
The OFDM technology is an a kind of multi-carrier transmission technology, and its main thought is: the channel total bandwidth is divided into the subcarrier of several quadratures, converts high-speed data signal to parallel low speed sub data flow, be modulated on each subcarrier and transmit.Compare with traditional multi-carrier transmission, OFDM can use more narrower orthogonal subcarrier to transmit.Having anti-multipath and disturb, realize supporting simply, flexibly advantages such as different bandwidth, the efficient self-adapted scheduling of the high support of the availability of frequency spectrum, is the following 4G redundancy technique of generally acknowledging.
In the correlation technique; OFDM/OFDMA is that worldwide interoperability for microwave inserts (World wide Interoperability for Microwave Access in the radio communication; Abbreviate WiMAX as) and TD SDMA access Long Term Evolution (Time Division-Synchronous Code Division Multiple Access_Long Term Evolution; Abbreviate LTE_TD as) key technology, but in present application, two kinds of standards adopt is base band processing device independently separately; Be WiMAX corresponding be the base band processing device of WiMAX; What LTE-TD adopted is the base band processing device of LTE-TD, causes the system integration degree not high, causes the total maintenance of system equipment than higher.
Summary of the invention
Main purpose of the present invention is to provide a kind of band processing system and method; With solve WiMAX in the correlation technique corresponding be the base band processing device of WiMAX, LTE-TD adopts is that problem of higher is compared in the relatively lower and total maintenance of system equipment of the system integration degree that causes of the base band processing device of LTE-TD.
To achieve these goals, according to an aspect of the present invention, a kind of band processing system is provided.
Band processing system according to the present invention comprises: transport module is used to receive base band data; Baseband processing module; Be used for carrying out the base band configuration according to the data format of base band data; And the base band data after will disposing according to data format sends to, and worldwide interoperability for microwave inserts the WiMAX Service Processing Module or TD SDMA inserts Long Term Evolution LTE_TD Service Processing Module; Wherein, data format comprises: WiMAX form and LTE_TD form; The WiMAX Service Processing Module is used for the base band data after the configuration is carried out the processing of WiMAX form; The LTE_TD Service Processing Module is used for the base band data after the configuration is carried out the processing of LTE_TD form.
Further, above-mentioned baseband processing module comprises: confirm submodule, be used to receive configuration order, and confirm the data format of base band data according to configuration order.
Further, above-mentioned baseband processing module comprises: the first clock setting submodule, be used for when data format is the WiMAX form, and it is the WiMAX system clock that the base band clock is set; First interface is provided with submodule, is used for when data format is the WiMAX form, baseband interface is set is configured to the configuration of WiMAX system interface.
Further, above-mentioned baseband processing module also comprises: second clock is provided with submodule, is used for when data format is the LTE_TD form, and it is the LTE_TD system clock that the base band clock is set; Second interface is provided with submodule, is used for when data format is the LTE_TD form, baseband interface is set is configured to the configuration of LTE_TD system interface.
Further, baseband processing module is realized through digital signal processor (DSP) and field programmable gate array (FPGA).
To achieve these goals, according to a further aspect in the invention, a kind of baseband processing method is provided.
Baseband processing method according to the present invention comprises: the transport module of band processing system receives base band data; The baseband processing module of band processing system carries out the base band configuration according to the data format of base band data; And the base band data after will disposing according to data format sends to the WiMAX Service Processing Module of band processing system or the LTE_TD Service Processing Module of band processing system; Wherein, data format comprises: WiMAX form and LTE_TD form; The WiMAX Service Processing Module carries out the processing of LTE_TD form to processing or the LTE_TD Service Processing Module that the base band data after disposing carries out the WiMAX form to the base band data after disposing.
Further, the baseband processing module of band processing system carries out the base band configuration according to the data format of base band data and comprises: receive configuration order, and confirm the data format of base band data according to configuration order.
Further, carrying out the baseband format configuration according to the form of base band data comprises: when data format was the WiMAX form, it was the WiMAX system clock that the base band clock is set; When data format is the WiMAX form, baseband interface is set is configured to the configuration of WiMAX system interface.
Further, carrying out the baseband format configuration according to the form of base band data also comprises: when data format was the LTE_TD form, it was the LTE_TD system clock that the base band clock is set; When data format is the LTE_TD form, baseband interface is set is configured to LTE_TD system interface and processing mode configuration.
Further, baseband processing module is realized through digital signal processor (DSP) and field programmable gate array (FPGA).
Through the present invention, adopt transport module, be used to receive base band data; Baseband processing module; Be used for carrying out the base band configuration according to the data format of base band data; And the base band data after will disposing according to data format sends to WiMAX Service Processing Module or LTE_TD Service Processing Module, and wherein, data format comprises: WiMAX form and LTE_TD form; The WiMAX Service Processing Module is used for the base band data after the configuration is carried out the processing of WiMAX form; The LTE_TD Service Processing Module; Be used for the base band data after the configuration is carried out the processing of LTE_TD form; Solved WiMAX in the correlation technique corresponding be the base band processing device of WiMAX; LTE-TD adopts be the maintenance cost that the system integration degree is relatively lower and system equipment is total that causes of the base band processing device of LTE-TD than problem of higher, and then reached the utilance that at utmost promotes baseband system, make baseband system use less hardware to obtain more widely used effect.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the structured flowchart according to the band processing system of the embodiment of the invention;
Fig. 2 is the preferred construction block diagram according to the band processing system of the embodiment of the invention;
Fig. 3 is the structured flowchart of band processing system according to the preferred embodiment of the invention;
Fig. 4 is the flow chart according to the baseband processing method of the embodiment of the invention.
Embodiment
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Embodiment one
In the present embodiment; A kind of band processing system is provided; Fig. 1 is the structured flowchart according to the band processing system of the embodiment of the invention; As shown in Figure 1, this system comprises: transport module 12, baseband processing module 14, WiMAX Service Processing Module 16 and LTE_TD Service Processing Module 18 are elaborated in the face of said structure down.
Transport module 12 is used to receive base band data; Baseband processing module 14; Be connected to transport module 12; The data format of the base band data that is used for receiving according to transport module 12 carries out the base band configuration; And the base band data after will disposing according to data format sends to WiMAX Service Processing Module or LTE_TD Service Processing Module, and wherein, data format comprises: WiMAX form and LTE_TD form; The WiMAX Service Processing Module is connected to baseband processing module 14, is used for the base band data after baseband processing module 14 configurations is carried out the processing of WiMAX form; The LTE_TD Service Processing Module is connected to baseband processing module 14, is used for the base band data after baseband processing module 14 configurations is carried out the processing of LTE_TD form.
Through above-mentioned module; Baseband processing module 14 carries out the base band configuration according to the data format of the base band data that transport module 12 receives; Base band data after will disposing then sends to the WiMAX Service Processing Module and the LTE_TD Service Processing Module is handled; Avoided that WiMAX and two kinds of standards of LTE_TD but handle respectively through base band processing device separately based on the OFDM/OFDMA technology in the prior art, caused the total maintenance cost of system integration degree comparison low-level system equipment to compare problem of higher; Realized realizing the Business Processing of WiMAX and LTE-TD in business side; Base band data is unified the processing on unified baseband board, improved the utilance of base station system, reduced the kind and the maintenance cost of product; And then reached the utilance that at utmost promotes baseband system, make baseband system use less hardware to obtain more widely used effect.
Fig. 2 is the preferred construction block diagram according to the band processing system of the embodiment of the invention; As shown in Figure 2; Baseband processing module 14 also comprises: confirm that submodule 140, the first clock setting submodule 142, first interface are provided with submodule 144, submodule 146 is set second clock and second interface is provided with submodule 148, be elaborated in the face of said structure down.
Confirm submodule 140, be used to receive configuration order, and confirm the data format of base band data according to configuration order; The first clock setting submodule 142 is connected to and confirms submodule 140, is used for when definite submodule 140 specified data forms are the WiMAX form, and it is the WiMAX system clock that the base band clock is set; First interface is provided with submodule 144, is connected to confirm submodule 140, is used for when definite submodule 140 specified data forms are the WiMAX form, baseband interface is set is configured to the configuration of WiMAX system interface.Second clock is provided with submodule 146, is connected to confirm submodule 140, is used for when definite submodule 140 specified data forms are the LTE_TD form, and it is the LTE_TD system clock that the base band clock is set; Second interface is provided with submodule 148, is connected to confirm submodule 140, is used for when definite submodule 140 specified data forms are the LTE_TD form, baseband interface is set is configured to the configuration of LTE_TD system interface.
Confirm the data format of base band data according to its configuration order that receives through confirming submodule 140 in the present embodiment; It is under the situation of WiMAX form and LTE_TD form at data format that the first clock setting submodule 142 is provided with submodule 146 with second clock; The base band clock of corresponding form is set respectively; First interface is provided with submodule 144 and second interface, and submodule 148 is set is under the situation of WiMAX form and LTE_TD form at data format; Baseband interface configuration is set respectively, has realized that base band data carries out unified Base-Band Processing on baseband processing module, improved the utilance of system module and reduced the cost of the system integration.
Preferably, in the present embodiment, baseband processing module is realized through digital signal processor (Digital Signal Processing abbreviates DSP as) and field programmable gate array (Field Programmable Gate Array abbreviates FPGA as).Because DSP and FPGA are programmable logic devices, can carry out the function expansion through DSP and FPGA program are programmed or renewal is upgraded.For example: can the first clock setting submodule 142, second clock be provided with submodule 146 through on a hardware single board, realizing (on DSP or FPGA, writing the program that is used to accomplish WiMAX or the configuration of LTE_TD clock), submodule 144 is set first interface and second interface is provided with submodule 148 (on DSP or FPGA, writing the program that is used to accomplish WiMAX or the configuration of LTE_TD baseband interface).
Through the preferred embodiment, adopt DSP and FPGA to realize the processing capacity of baseband processing module, not only can realize good expansion, can also reduce the device cost of system.
Need to prove; The first clock setting submodule 142, second clock are provided with the clock setting function that submodule 146 is used to accomplish different system; But in the actual hardware implementation procedure, both adopt same veneer (like DSP or FPGA) to realize, and first interface is provided with submodule 144 and second interface and the interface that submodule 148 is used to accomplish different system is set function is set; But in the actual hardware implementation procedure; Both adopt same veneer (like DSP or FPGA) to realize, to realize base band data unified processing on unified baseband board, have improved the utilance of base station system; Reduce the kind and the maintenance cost of product, and then reached the utilance that at utmost promotes baseband system.
Fig. 3 is the structured flowchart of band processing system according to the preferred embodiment of the invention; As shown in Figure 3; This system comprises: transport module 30, OFDM/OFDMA unify baseband processing module 32, WiMAX Service Processing Module 34, LTE-TD Service Processing Module 36 and main control unit 38, are elaborated in the face of said structure down.
Transport module 30 is used for the dpch signal of transmission OFDM/OFDMA standard; OFDM/OFDMA unifies baseband processing module 32, is connected to transport module 30, is used to handle the unified baseband signal of the OFDM/OFDMA that transport module 30 receives; WiMAX Service Processing Module 34 is connected to OFDM/OFDMA and unifies baseband processing module 32, is used to handle the Business Processing of WiMAX standard; LTE-TD Service Processing Module 36 is connected to OFDM/OFDMA and unifies baseband processing module, is used to handle the Business Processing of LTE-TD standard; Main control unit 38; Be connected to transport module 30, OFDM/OFDMA unifies baseband processing module 32, WiMAX Service Processing Module 34, LTE-TD Service Processing Module 36; Be used for transport module 30, OFDM/OFDMA are unified baseband processing module 32, WiMAX Service Processing Module 34, LTE-TD Service Processing Module 36 transmit operation action commands, and units corresponding carried out Operation and Maintenance according to the order of attended operation.
Need to prove; OFDM/OFDMA unifies the function that baseband processing module 32 is used for execution graph 1 baseband processing module 14; WiMAX Service Processing Module 34 is used for the function of execution graph 1 WiMAX Service Processing Module 16, and LTE-TD Service Processing Module 36 is used for the function of execution graph 1 LTE_TD Service Processing Module 18.
Pass through the preferred embodiment; Realized realizing in business side the Business Processing of WiMAX and LTE-TD, base band data is unified the processing on unified baseband board, and carries out Operation and Maintenance through main control module 38; Improved the utilance of base station system; Reduce the kind and the maintenance cost of product, and then reached the utilance that at utmost promotes baseband system, made baseband system use less hardware to obtain more widely used effect.
Embodiment two
Present embodiment combines embodiment one and preferred implementation wherein, and a kind of baseband processing method is provided in the present embodiment, and Fig. 4 is the flow chart according to the baseband processing method of the embodiment of the invention, and is as shown in Figure 4, comprising:
Step S402, the transport module of band processing system receives base band data.
Step S404; The baseband processing module of band processing system carries out the base band configuration according to the data format of base band data; And the base band data after will disposing according to data format sends to the WiMAX Service Processing Module of band processing system or the LTE_TD Service Processing Module of band processing system; Wherein, data format comprises: WiMAX form and LTE_TD form.
Step S406, the WiMAX Service Processing Module carries out the processing of LTE_TD form to processing or the LTE_TD Service Processing Module that the base band data after disposing carries out the WiMAX form to the base band data after disposing.
Pass through above-mentioned steps; Carry out base band configuration according to the base band data form that receives, the base band data after will dispose then sends to the WiMAX Service Processing Module and the LTE_TD Service Processing Module is handled, and has avoided in the prior art WiMAX and two kinds of standards of LTE_TD all technological based on OFDM/OFDMA; But handle respectively through base band processing device separately; Cause the system integration degree to compare the total maintenance cost of low-level system equipment than problem of higher, realized realizing in business side the Business Processing of WiMAX and LTE-TD, base band data is unified the processing on unified baseband board; Improved the utilance of base station system; Reduce the kind and the maintenance cost of product, and then reached the utilance that at utmost promotes baseband system, made baseband system use less hardware to obtain more widely used effect.
Preferably, the baseband processing module of band processing system carries out the base band configuration according to the data format of base band data and comprises: receive configuration order, and confirm the data format of base band data according to said configuration order.
The preferred embodiment has realized confirming of data format, so that carry out the base band configuration according to data format in the subsequent operation.
Describe in the face of an optimal way that carries out the baseband format configuration according to the form of base band data among the step S404 down: this preferred embodiment in, when data format was the WiMAX form, it was the WiMAX system clock that the base band clock is set; When data format is the WiMAX form, baseband interface is set is configured to the configuration of WiMAX system interface.
Need to prove, after baseband interface is configured to the configuration of WiMAX system interface, its processing mode corresponding to the WiMAX system is adopted in the processing of this baseband interface.
Describe in the face of the optimal way that makes that carries out the baseband format configuration according to the form of base band data among the step S404 down: this preferred embodiment in, when data format was the LTE_TD form, it was the LTE_TD system clock that the base band clock is set; When data format is the LTE_TD form, baseband interface is set is configured to the configuration of LTE_TD system interface.
Need to prove, after baseband interface is configured to the configuration of WiMAX system interface, its processing mode corresponding to the WiMAX system is adopted in the processing of this baseband interface.
Through above-mentioned two kinds of preferred implementations, realized that base band data carries out unified Base-Band Processing on baseband processing module, improve the utilance of system module and reduced the cost of the system integration.
Preferably, in the present embodiment, baseband processing module is realized through digital signal processor (Digital Signal Processor abbreviates DSP as) and field programmable gate array (Field Programmable Gate Array abbreviates FPGA as).
Through the preferred embodiment, adopt DSP and FPGA to realize the processing capacity of baseband processing module, not only can realize good expansion, can also reduce the device cost of system.Because DSP and FPGA are programmable logic devices, can carry out the function expansion through DSP and FPGA program are programmed or renewal is upgraded.For example: can on a hardware single board, realize WiMAX and LTE_TD clock configuration (on DSP or FPGA, writing the program that is used to accomplish WiMAX or the configuration of LTE_TD clock), on a hardware single board, realize WiMAX and the configuration of LTE_TD baseband interface (on DSP or FPGA, writing the program that is used to accomplish WiMAX and the configuration of LTE_TD baseband interface).
Through the above embodiments of the present invention; Processing respectively and base band data professional at business side realization WiMAX and that LTE-TD is professional are realized unified Base-Band Processing on baseband processing module; Make network element be able to unification, will combine, promptly can give full play to the advantage of ripe wireless MAN of WiMAX based on the WiMAX treatment technology and the LTE-TD treatment technology otherwise effective technique of OFDM/OFDMA technology based on many kinds of standards of OFDM/OFDMA; Can after the LTE-TD technology maturation, need not change hardware yet; Only through revising the mode that upper-layer service is handled, at utmost the utilance of elevator system makes system's use less hardware obtain to use widely.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, and in some cases, can carry out step shown or that describe with the order that is different from here by calculation element; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a band processing system is characterized in that, comprising:
Transport module is used to receive base band data;
Baseband processing module; Be used for carrying out the base band configuration according to the data format of said base band data; And the said base band data after will disposing according to said data format sends to, and worldwide interoperability for microwave inserts the WiMAX Service Processing Module or TD SDMA inserts Long Term Evolution LTE_TD Service Processing Module; Wherein, said data format comprises: WiMAX form and LTE_TD form;
Said WiMAX Service Processing Module is used for the said base band data after the configuration is carried out the processing of WiMAX form;
Said LTE_TD Service Processing Module is used for the said base band data after the configuration is carried out the processing of LTE_TD form.
2. system according to claim 1 is characterized in that, said baseband processing module comprises:
Confirm submodule, be used to receive configuration order, and confirm the data format of said base band data according to said configuration order.
3. system according to claim 1 is characterized in that, said baseband processing module comprises:
The first clock setting submodule is used for when said data format is the WiMAX form, and it is the WiMAX system clock that the base band clock is set;
First interface is provided with submodule, is used for when said data format is the WiMAX form, baseband interface is set is configured to the configuration of WiMAX system interface.
4. system according to claim 3 is characterized in that, said baseband processing module also comprises:
Second clock is provided with submodule, is used for when said data format is the LTE_TD form, and it is the LTE_TD system clock that the base band clock is set;
Second interface is provided with submodule, is used for when said data format is the LTE_TD form, baseband interface is set is configured to the configuration of LTE_TD system interface.
5. according to each described system among the claim 1-4, it is characterized in that said baseband processing module is realized through digital signal processor DSP and on-site programmable gate array FPGA.
6. a baseband processing method is characterized in that, comprising:
The transport module of band processing system receives base band data;
The baseband processing module of said band processing system carries out the base band configuration according to the data format of said base band data; And the said base band data after will disposing according to said data format sends to the WiMAX Service Processing Module of said band processing system or the LTE_TD Service Processing Module of said band processing system; Wherein, said data format comprises: WiMAX form and LTE_TD form;
Said WiMAX Service Processing Module carries out the processing of LTE_TD form to processing or the said LTE_TD Service Processing Module that the said base band data after disposing carries out the WiMAX form to the said base band data after disposing.
7. method according to claim 6 is characterized in that, the baseband processing module of said band processing system carries out the base band configuration according to the data format of said base band data and comprises:
Receive configuration order, and confirm the data format of said base band data according to said configuration order.
8. method according to claim 6 is characterized in that, carries out the baseband format configuration according to the form of said base band data and comprises:
When said data format was the WiMAX form, it was the WiMAX system clock that the base band clock is set;
When said data format is the WiMAX form, baseband interface is set is configured to the configuration of WiMAX system interface.
9. method according to claim 8 is characterized in that, carries out the baseband format configuration according to the form of said base band data and also comprises:
When data format was the LTE_TD form, it was the LTE_TD system clock that the base band clock is set;
When data format is the LTE_TD form, baseband interface is set is configured to LTE_TD system interface and processing mode configuration.
10. according to each described method among the claim 6-9, it is characterized in that said baseband processing module is realized through digital signal processor DSP and on-site programmable gate array FPGA.
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| CN2010102322340A CN102340470A (en) | 2010-07-20 | 2010-07-20 | Baseband processing system and method |
| PCT/CN2010/078408 WO2012009899A1 (en) | 2010-07-20 | 2010-11-04 | Baseband processing system and method |
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| WO2012009899A1 (en) | 2012-01-26 |
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Application publication date: 20120201 |