CN106230443B - A kind of base band downlink signal processing unit - Google Patents
A kind of base band downlink signal processing unit Download PDFInfo
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- CN106230443B CN106230443B CN201610836019.9A CN201610836019A CN106230443B CN 106230443 B CN106230443 B CN 106230443B CN 201610836019 A CN201610836019 A CN 201610836019A CN 106230443 B CN106230443 B CN 106230443B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0264—Arrangements for coupling to transmission lines
- H04L25/0292—Arrangements specific to the receiver end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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Abstract
The invention discloses a kind of base band downlink signal processing unit, including：Hardware system, DSP multiple nucleus systems.Hardware system includes control channel hardware system, digital channel hardware system, external memory, and multi-nuclear DSP system includes main dsp system and auxiliary dsp system.The hardware system is connect with multi-nuclear DSP system by interface unit, by down trigger.It is triggered between the main dsp system and auxiliary dsp system by operating system semaphore, passes through multinuclear shared memory Compliance control information.The main dsp system passes through DHI interfaces and high-rise connection.The base band downlink signal processing unit of the present invention can realize processing of the mobile terminal for multi-carrier polymerizing downgoing baseband signal, variable number I.Processing of the mobile terminal for single carrier polymerization downgoing baseband signal can be realized by removing auxiliary dsp system.
Description
Technical field
The present invention relates to mobile terminal baseband technologies, are related specifically to a kind of enhanced long term evolution (referred to as, LTE-A)
System and mobile terminal band signal processor.
Background technology
As requirement of the development and user of the communication technology to real-time communication and communication efficiency constantly enhances, the whole world is mobile
Cellular communications networks are basically completed or are carrying out 2nd generation mobile communications network (2G) and drilled to third generation mobile communications network (3G)
Into, and start to more high data throughput and better 4th third generation mobile communication network (4G) evolution of real-time.
Long term evolution (referred to as, LTE) system is the quasi- 4G communication systems of current mainstream；And lte-a system is LTE system
Next step evolution system.Compared with LTE, LTE-A employs carrier aggregation (referred to as, CA) technology and carrys out growth data transmission bandwidth.
The definition of carrier aggregation technology is that two or more " member carriers " condense together, to support the transmission bandwidth of bigger.Eventually
End can send or receive simultaneously one or more member carrier according to its ability.That is, utilize carrier aggregation skill
Art, the terminal of lte-a system can support the data transmission of multiple carrier waves simultaneously, and the band of support is wider than 20MHz.
Invention content
In view of this, the object of the present invention is to provide a kind of base band downlink signal processing units.
The purpose of the present invention is achieved through the following technical solutions, a kind of base band downlink signal processing unit, including
DSP multiple nucleus systems and hardware system, the DSP multiple nucleus systems include main dsp system and I auxiliary dsp systems, the main DSP systems
It is triggered between system and auxiliary dsp system by operating system semaphore, and pass through multinuclear shared memory Compliance control information；It is described
Hardware system includes control channel hardware system and digital channel hardware system；
The DSP multiple nucleus systems further include DHI controllers, control channel controller and digital management information system, described
Digital channel control system includes I+1 digital channel controller；
The main dsp system completes the control work(of DHI controllers, control channel controller and digital channel controller 0
Energy；Auxiliary dsp system I completes the control function of digital channel control unit I+1；
The control channel hardware system includes I+1 control channel hardware cell, the digital channel hardware system packet
Include I+1 digital channel hardware cell；The I+1 digital channel hardware cell controls respectively with control channel controller, DHI
Device is connected with I+1 digital channel controller, and described I+1 digital channel controller is hard with I+1 digital channel respectively
Part unit connects, and the I+1 digital channel hardware cell is connected with DHI controls；
In non-cross-carrier scheduling scenario:Control channel hardware cell I is connected with data channel control unit I；
In cross-carrier scheduling scenario:Control channel hardware cell 0 is connected with data channel control unit I.
Further, the signal processing apparatus further includes external memory, and the external memory is deposited including I+1 data
The information of storage unit, control channel hardware cell I and digital channel hardware cell I are stored in data storage cell I.
Further, the control channel hardware cell includes sequentially connected Receiver Module, control channel channel is estimated
Meter module, control channel signal detection module and control channel decoding module, the control channel hardware cell further include measurement
Module, the measurement module be connected to the output terminal of Receiver Module or the output terminal of control channel channel estimation module or
The output terminal of control channel signal detection module or the output terminal of control channel decoding module, the measurement module are controlled with DHI
Device connects.
Further, the digital channel hardware cell includes sequentially connected digital channel channel estimation module, number letter
Road signal detection module retransmits merging module and digital channel decoding module, and the digital channel decoding module connects with DHI controls
It connects.
Further, the control channel controller is connect by control channel input interface with control channel hardware system,
The control channel input interface includes I+1 control channel input interface unit, control channel input interface unit I and control
The I connections of channel hardware cell；The control channel hardware system is connect by measurement result output interface with DHI controllers, institute
It states measurement result output interface and includes I+1 measurement result output interface unit, measure output interface unit I and control channel is hard
The I connections of part unit；The control channel hardware system is connect by control channel output interface with digital channel control system, institute
It states control channel output interface and includes I+1 control channel output interface unit, control channel output interface unit I believes with number
Road control unit I connections；The digital channel control system is connected by digital channel input interface and digital channel hardware system
It connects, digital channel input interface includes I+1 digital channel input interface unit, digital channel input interface unit I and number
The I connections of channel hardware cell；The DHI controllers are connect by digital channel output interface with digital channel hardware system, number
Word channel output interface includes I+1 digital channel output interface unit, digital channel output interface unit I connection digital channels
Hardware cell I.
By adopting the above-described technical solution, the present invention has the advantage that：
The base band downlink signal processing unit of the present invention can realize that mobile terminal believes multi-carrier polymerizing downgoing baseband
Number processing, variable number I.Removing auxiliary dsp system can realize that mobile terminal polymerize downgoing baseband signal for single carrier
Processing.
Description of the drawings
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made below in conjunction with attached drawing into
The detailed description of one step, wherein：
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the schematic diagram of the present invention；
Fig. 3 channel hardware system block diagrams in order to control；
Fig. 4 is digital channel hardware system block diagram.
Specific embodiment
Below with reference to attached drawing, the preferred embodiment of the present invention is described in detail；It should be appreciated that preferred embodiment
Only for illustrating the present invention, the protection domain being not intended to be limiting of the invention.
A kind of base band downlink signal processing unit, including DSP multiple nucleus systems and hardware system, the hardware system and DSP
Multiple nucleus system is connected by interface unit, by down trigger.The hardware system includes control channel hardware system and number is believed
Road hardware system；The DSP multiple nucleus systems include main dsp system and I auxiliary dsp systems.The main dsp system and auxiliary DSP systems
It is triggered between system by operating system semaphore, and passes through multinuclear shared memory Compliance control information；The DSP multiple nucleus systems
It further includes DHI controllers, control channel controller and digital management information system, the digital channel control system and includes I+1
A number channel controller；It is single that the main dsp system completes DHI controllers, control channel controller and digital channel control
The control function of member 0；Auxiliary dsp system I completes the control function of digital channel control unit I+1.
The function of each composition system/module involved in the present invention is introduced below
Control channel hardware system：The input parameter of each hardware of subcarrier I is obtained from control channel controller, is controlled
Channel controller processed only starts first hardware of subcarrier I, and subsequent hardware after the completion of the hardware of upper level by restarting.It is complete
Cheng Houfa, which is interrupted, gives DHI controllers, reads measurement result.
Digital channel hardware system：The input parameter of each hardware of subcarrier I is obtained from digital channel control unit,
Digital channel control unit only starts first hardware of subcarrier I, and subsequent hardware by opening again after the completion of the hardware of upper level
It is dynamic.Hair, which interrupts, after the completion gives DHI controllers, reads decoding result.
DHI controllers：Higher level parameters are parsed, pass to control channel controller and digital channel control system；
The measurement result of control channel and the decoding of digital channel are collected as a result, being reported to high level after parsing.
Control channel controller：Indicated whether for cross-carrier scheduling, to generate the control channel of each subcarrier according to high level
The input parameter of involved all hardware is stored in control channel input interface, starts each subcarrier control channel
First hardware.Under cross-carrier dispatch situation, the number of multicarrier is passed the result to by the control channel hardware system of main carrier
Channel input interface unit；Under non-cross-carrier dispatch situation, result is transmitted by the control channel hardware system of corresponding carrier wave
To the digital channel input interface unit of corresponding carrier wave.
Digital channel control system：PDCCH decoding results are subjected to DCI parsings, generate the digital channel of each subcarrier
The input parameter of involved all hardware is stored in digital channel input interface, starts each subcarrier digital channel
First hardware.
As shown in Figure 3,4, control channel hardware system includes sequentially connected Receiver Module, control channel channel is estimated
Module, control channel signal detection module, control channel and decoding module are counted, further, control channel hardware system further includes
Measurement module (according to different algorithm requirements, is completed) in different hardware nodes.
Digital channel hardware system includes sequentially connected digital channel channel estimation module, digital channel signal detection mould
Block, digital channel retransmit merging module, digital channel decoding module.
Downflow is divided into the non-cross-carrier process flow of downlink data carriers polymerization and downlink data carriers polymerization is cross-carrier
Two kinds of scenes of process flow
1st, downlink data carriers polymerize non-cross-carrier process flow
101st, the DHI controllers of main DSP parse upper-layer protocol, obtain non-cross-carrier information, control radio frequency reception
The downlink data of multicarrier.
The radio frequency receiving signal of different carrier waves is stored in corresponding external memory unit, which caches frame letter
Number, for overloading wave measurement and control channel decoding and digital channel decoding.
102nd, the DHI controllers of main DSP generate the configuration information of all hardware of major-minor carrier Control channel, pass through DMA
Etc. modes move in major-minor control channel all hardware interface (Interface design for certain subcarrier all hardware input parameter address connect
It is continuous, can monoblock move mode)
103rd, the DHI controllers of main DSP start control channel hardware cell 0-I,
104th, control channel hardware cell I completes backward DSP hairs interruption：Digital channel control system judges control channel list
The DCI results of first I have obtained, carry out DCI parsings, obtain digital channel input interface unit I；DHI controllers judge major-minor load
Wave measurements have obtained, to high-rise report measurement results.
It measures function to be completed by measurement module in different nodes, and is controlled by the triggering of upper level Hardware I P.
The re-transmission data exported in the re-transmission pooling function of digital channel are stored in external memory unit, for next time
It retransmits to merge and use.
105th, digital channel control unit I moves digital channel input interface unit I into data channel hardware by DMA
The interface register (address of multiple IP continuously allows DMA continuously to remove number) of unit I,
106th, digital channel control system start digital channel hardware cell I, until major-minor carrier wave digital channel all by
Startup finishes；
107th, digital channel hardware cell I completes backward DHI controllers hair interruption, and notice DSP reads decoding result；
108th, after DHI controllers have collected the decoding information of all subcarriers, the decoding of all subcarriers is reported to high level
Bit stream.
2nd, downlink data carriers polymerize cross-carrier process flow
101st, the DHI controllers of main DSP parse upper-layer protocol, obtain cross-carrier information, and control radio frequency reception is more
The downlink data of carrier wave.
The radio frequency receiving signal of different carrier waves is stored in corresponding external memory unit, which carries for corresponding son
The control channel and digital channel of wave are used in conjunction with.
102nd, the DHI controllers of main DSP generate the configuration information of all hardware of main carrier control channel, pass through DMA etc.
Mode move in main control channel all hardware interface (Interface design for certain subcarrier all hardware input parameter address it is continuous,
Can monoblock move mode)
103rd, the DHI controllers of main DSP start main carrier control channel hardware cell 0,
104th, control channel hardware cell 0 completes backward DSP hairs interruption, and digital channel control system judges control channel list
The DCI results of member 0 have obtained, carry out DCI parsings, according to cross-carrier information, obtain major-minor carrier wave digital channel input interface list
First I；DHI controllers judge that major-minor carrier measurements have obtained, to high-rise report measurement results.
The re-transmission data exported in the re-transmission pooling function of digital channel are stored in external memory unit, for next time
It retransmits to merge and use.
105th, digital channel control unit I moves digital channel input interface unit I into data channel hardware by DMA
The interface register (address of multiple IP continuously allows DMA continuously to remove number) of unit I,
106th, digital channel control system start digital channel hardware cell I, until major-minor carrier wave digital channel all by
Startup finishes；
107th, digital channel hardware cell I completes backward DHI controllers hair interruption, and notice DSP reads decoding result；
108th, after DHI controllers have collected the decoding information of all subcarriers, the decoding of all subcarriers is reported to high level
Bit stream.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (5)
1. a kind of base band downlink signal processing unit, it is characterised in that：Including DSP multiple nucleus systems and hardware system, the DSP is more
Core system includes main dsp system and I auxiliary dsp systems, is believed between the main dsp system and auxiliary dsp system by operating system
Number amount triggering, and passes through multinuclear shared memory Compliance control information；The hardware system include control channel hardware system and
Digital channel hardware system；
The DSP multiple nucleus systems further include DSP high-level interfaces (DSP High Layer Interface, DHI) controller, control
Channel controller and digital channel control system, the digital channel control system include I+1 digital channel controller；
The main dsp system completes the control work(of DHI controllers, control channel controller and the 0th digital channel controller
Energy；
The auxiliary dsp system of i-th completes the digital channel controller control function of I+1；
The control channel hardware system includes I+1 control channel hardware cell, and the digital channel hardware system includes I+1
A digital channel hardware cell；Described I+1 digital channel controller is connect respectively with I+1 digital channel hardware cell,
The I+1 digital channel hardware cell is connect with DHI controllers；
In non-cross-carrier scheduling scenario：Control channel hardware cell I is connected with data channel control unit I；
In cross-carrier scheduling scenario：Control channel hardware cell 0 is connected with data channel control unit I.
2. base band downlink signal processing unit according to claim 1, it is characterised in that：The signal processing apparatus also wraps
External memory is included, the external memory includes I+1 data storage cell, control channel hardware cell I and digital channel
The information of hardware cell I is stored in data storage cell I.
3. base band downlink signal processing unit according to claim 1, it is characterised in that：The control channel hardware cell
Including sequentially connected Receiver Module, control channel channel estimation module, control channel signal detection module and control letter
Road decoding module, the control channel hardware cell further include measurement module, and the measurement module is connected to Receiver Module
Output terminal or the output terminal of control channel channel estimation module or the output terminal of control channel signal detection module or control letter
The output terminal of road decoding module, the measurement module are connect with DHI controllers.
4. base band downlink signal processing unit according to claim 1, it is characterised in that：The digital channel hardware cell
Including sequentially connected digital channel channel estimation module, digital channel signal detection module, retransmit merging module and number letter
Road decoding module, the digital channel decoding module are connect with DHI controllers.
5. base band downlink signal processing unit according to claim 1, it is characterised in that：The control channel controller leads to
It crosses control channel input interface to connect with control channel hardware system, the control channel input interface, which includes I+1 control, to be believed
Road input interface unit, control channel input interface unit I are connect with control channel hardware cell I；The control channel hardware
System is connect by measurement result output interface with DHI controllers, and the measurement result output interface includes I+1 measurement result
Output interface unit measures output interface unit I and is connect with control channel hardware cell I；The control channel hardware system leads to
It crosses control channel output interface to connect with digital channel control system, the control channel output interface, which includes I+1 control, to be believed
Road output interface unit, control channel output interface unit I are connect with digital channel control unit I；The digital channel control
System is connect by digital channel input interface with digital channel hardware system, and digital channel input interface includes I+1 number
Channel input interface unit, digital channel input interface unit I are connect with digital channel hardware cell I；The DHI controllers lead to
It crosses digital channel output interface to connect with digital channel hardware system, it is defeated that digital channel output interface includes I+1 digital channel
Outgoing interface unit, digital channel output interface unit I connection digital channel hardware cells I.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6327648B1 (en) * | 1994-12-09 | 2001-12-04 | Cirrus Logic, Inc. | Multiprocessor system for digital signal processing |
| CN203072172U (en) * | 2012-12-29 | 2013-07-17 | 重庆重邮信科通信技术有限公司 | Baseband signal processing device |
| CN105183698A (en) * | 2015-09-23 | 2015-12-23 | 上海无线电设备研究所 | Control processing system and method based on multi-kernel DSP |
-
2016
- 2016-09-20 CN CN201610836019.9A patent/CN106230443B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6327648B1 (en) * | 1994-12-09 | 2001-12-04 | Cirrus Logic, Inc. | Multiprocessor system for digital signal processing |
| CN203072172U (en) * | 2012-12-29 | 2013-07-17 | 重庆重邮信科通信技术有限公司 | Baseband signal processing device |
| CN105183698A (en) * | 2015-09-23 | 2015-12-23 | 上海无线电设备研究所 | Control processing system and method based on multi-kernel DSP |
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| CN106230443A (en) | 2016-12-14 |
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Effective date of registration: 20210119 Address after: Room 501, unit 1, building 4, shangjingyuan, No.1, Jinhe Road, Nantou Town, Zhongshan City, Guangdong Province, 528400 Patentee after: Ruichenghui information technology (Zhongshan) Co.,Ltd. Address before: 1607, building 49, No.3, Queshan Yunfeng Road, Gaofeng community, Dalang street, Longhua District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Hongyue Information Technology Co.,Ltd. Effective date of registration: 20210119 Address after: 1607, building 49, No.3, Queshan Yunfeng Road, Gaofeng community, Dalang street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Hongyue Information Technology Co.,Ltd. Address before: 400065 Chongqing Nan'an District huangjuezhen pass Chongwen Road No. 2 Patentee before: CHONGQING University OF POSTS AND TELECOMMUNICATIONS |
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