CN101252423B - Physical uplink sharing channel handling method and apparatus - Google Patents
Physical uplink sharing channel handling method and apparatus Download PDFInfo
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- CN101252423B CN101252423B CN2008100904547A CN200810090454A CN101252423B CN 101252423 B CN101252423 B CN 101252423B CN 2008100904547 A CN2008100904547 A CN 2008100904547A CN 200810090454 A CN200810090454 A CN 200810090454A CN 101252423 B CN101252423 B CN 101252423B
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Abstract
The invention discloses a physical uplink channel sharing processing method, including that the signals are split according to the modulation symbol; the split signals are respectively distributed to a plurality of cores of a multi-core digital signal processor for demodulation; for the signals needed to be demodulated, the signals are split according to the corresponding users and/or the code blocks and are distributed to a plurality of cores for demodulation; besides, the invention also discloses a processing device for the physical uplink channel sharing. Based on the technical proposal, under the situation that the maximum air-interface flow is reached, the processing delay is reduced and the processing time is shortened greatly.
Description
Technical field
The present invention relates to the communications field, and especially, relate to a kind of physical uplink sharing channel handling method and device.
Background technology
According to Long Term Evolution (Long-Term Evolution, LTE) in the agreement to the automatic repeat requests of up mixing (Hybrid Automatic Repeat Request, HARQ) requirement of time delay, to begin to send the corresponding time correct or wrong (ACK or NACK) response be 3ms to the NodeB of enhancing (eNodeB) to descending from receiving Physical Uplink Shared Channel (PUSCH) channel subframe.
Like this, if directly utilize monokaryon digital signal processor (Digital SignalProcessor, DSP) TCI6482 comes the up demodulation of serial process, decoding, through test, be Category5 in user terminal (UE) type, transmission block (TB) size is 75056bit, the virtual multiple-input and multiple-output of up employing (Multiple Input MultipleOutput, MIMO), and the flow of eating dishes without rice or wine is when reaching 150Mbps, and total processing delay can't satisfy protocol requirement.Yet, the technical scheme that addresses the above problem is not proposed at present as yet.
Summary of the invention
Consider the problems referred to above and make the present invention that for this reason, main purpose of the present invention is with a kind of physical uplink sharing channel handling method and device, can't satisfy the problem of protocol requirement with monokaryon digital signal processor processes time delay in the solution correlation technique.
According to one embodiment of present invention, provide a kind of physical uplink sharing channel handling method, be used for the signal of the Physical Uplink Shared Channel of long evolving system being separated mediation decoding by the multinuclear digital signal processor.
This physical uplink sharing channel handling method comprises: signal is split with modulation symbol, and the signal allocation that fractionation is obtained is carried out demodulation to a plurality of nuclears of multinuclear digital signal processor; For the signal of demodulation, split and be assigned to a plurality of nuclears according to its corresponding user and/or its code block and decipher.
In addition, before deciphering, further comprise: the signal to demodulation splits and is dispensed to a plurality of nuclears with soft bit, to carry out descrambling.
Wherein, the processing of deciphering by a plurality of nuclears is specially: for the control data part and the data division of the signal of demodulation, split and be assigned to a plurality of nuclears according to its corresponding user and carry out the decomposition multiplex processing, wherein, on a nuclear, the signal corresponding to same user is carried out demultiplexing; Signal behind the decomposition multiplex is split as code block, and code block is assigned to a plurality of nuclears separates rate-matched and handle; The code block of separating after the rate-matched by a plurality of nuclears carries out the code block cyclic redundancy check (CRC), to finish the decoding of code-aiming block; Carry out the code block connection by a plurality of code blocks of finishing decoding of checking,, wherein, on a nuclear, handle code block corresponding to same user until the code block of all finishing decoding being carried out the code block connection and obtaining transmission block; Carry out cyclic redundancy check (CRC) by a plurality of transmission blocks of checking, wherein, on same nuclear, carry out verification corresponding to a user's transmission block.
In addition, can further include: select a nuclear as scheduling nuclear in a plurality of nuclears, scheduling nuclear is used for that other nuclear is handled and/or distributed to a plurality of parts that obtain after splitting to be handled.
Wherein, scheduling nuclear distributes according to the loading condition of predetermined allocation rule and/or a plurality of nuclears.
According to another embodiment of the invention, provide a kind of Physical Uplink Shared Channel processing unit, be used for the signal of the Physical Uplink Shared Channel of long evolving system being separated mediation decoding by the multinuclear digital signal processor.
This Physical Uplink Shared Channel processing unit comprises: split module, be used for signal is split with modulation symbol, and the signal allocation that fractionation is obtained is carried out demodulation to a plurality of nuclears of multinuclear digital signal processor, and, split and be assigned to a plurality of nuclears according to its corresponding user and/or its code block and decipher for the signal of demodulation; A plurality of nuclears are used for deciphering separating to be in harmonious proportion from the signal that splits module.
In addition, splitting module also is used for the signal before deciphering is split with soft bit.
In addition, a plurality of nuclears also are used for the signal after the soft bit fractionation is carried out descrambling.
By means of technical scheme of the present invention, decipher by the mediation of separating that utilizes the multinuclear digital signal processor to handle the Physical Uplink Shared Channel channel, reach maximum and eat dishes without rice or wine to have reduced the time delay of handling under the situation of flow satisfying, to have shortened the processing time greatly.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the physical uplink sharing channel handling method of the inventive method embodiment;
Fig. 2 is the block diagram according to the Physical Uplink Shared Channel processing unit of apparatus of the present invention embodiment;
Fig. 3 handles according to the multi-core parallel concurrent of apparatus of the present invention embodiment to assist schematic diagram;
Fig. 4 is the scheduling nuclear process chart according to apparatus of the present invention embodiment; And
Fig. 5 is the non-scheduling nuclear process chart according to apparatus of the present invention embodiment.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Method embodiment
In the present embodiment, provide a kind of physical uplink sharing channel handling method, be used for the signal of the Physical Uplink Shared Channel of long evolving system being separated mediation decoding by the multinuclear digital signal processor.Fig. 1 is the flow chart according to the physical uplink sharing channel handling method of the inventive method embodiment.
As shown in Figure 1, comprise according to Physical Uplink Shared Channel (PUSCH) processing method of present embodiment: step S102, signal is split with modulation symbol, and the signal allocation that fractionation is obtained is carried out demodulation to a plurality of nuclears of multinuclear digital signal processor; Step S104 for the signal of demodulation, splits and is assigned to a plurality of nuclears according to its corresponding user and/or its code block and decipher.
In addition, before deciphering, further comprise: the signal to demodulation splits and is dispensed to a plurality of nuclears with soft bit, to carry out descrambling.
Wherein, the processing of deciphering by a plurality of nuclears is specially: for the control data part and the data division of the signal of demodulation, split and be assigned to a plurality of nuclears according to its corresponding user and carry out the decomposition multiplex processing, wherein, on a nuclear, the signal corresponding to same user is carried out demultiplexing; Signal behind the decomposition multiplex is split as code block, and code block is assigned to a plurality of nuclears separates rate-matched and handle; The code block of separating after the rate-matched by a plurality of nuclears carries out the code block cyclic redundancy check (CRC), to finish the decoding of code-aiming block; Carry out the code block connection by a plurality of code blocks of finishing decoding of checking,, wherein, on a nuclear, handle code block corresponding to same user until the code block of all finishing decoding being carried out the code block connection and obtaining transmission block; Carry out cyclic redundancy check (CRC) by a plurality of transmission blocks of checking, wherein, on same nuclear, carry out verification corresponding to a user's transmission block.
In addition, can further include: select a nuclear as scheduling nuclear in a plurality of nuclears, scheduling nuclear is used for that other nuclear is handled and/or distributed to a plurality of parts that obtain after splitting to be handled.
Wherein, scheduling nuclear distributes according to the loading condition of predetermined allocation rule and/or a plurality of nuclears.
That is to say, at first to partly analyze the demodulation descrambling of the PUSCH channel of LTE, for demodulation, can carry out fractionation between the multinuclear according to modulation symbol from time domain, for descrambling, then can carry out fractionation between the multinuclear according to soft bit, therefore can utilize multinuclear to carry out parallel processing from time domain.
Afterwards, the decoding of the PUSCH channel of LTE is partly analyzed, decoding comprises control section and data division demultiplexing, separates rate-matched, encoding block cyclic redundancy (CRC) verification, code block are connected, the transmission block CRC check.Below substep recited above is analyzed explanation.
Control data and data division demultiplexing: the parallel processing between the multinuclear divides according to the user, carries out user equilibrium between the multinuclear.
Separate rate-matched: the fractionation between the multinuclear can be carried out according to code block, that is, different users can handle on different nuclear, and same user's different code blocks also can be handled on different nuclear.
The encoding block CRC check: the fractionation between the multinuclear can be carried out according to code block, that is, different users can handle on different core, and same user's different code blocks also can be handled on different core.And the decoding of certain encoding block just can be carried out the encoding block CRC check after finishing, and needn't wait for that all code blocks are all deciphered to finish.
Code block connects: the fractionation between the multinuclear can only be carried out according to the user, and same user can only handle on a core.And, after finishing, the decoding of certain encoding block just can carry out the code block connection, needn't wait for that all code blocks are all deciphered to finish.
The transmission block CRC check: the fractionation between the multinuclear can only be carried out according to the user, and same user can only handle on a core, and, can only wait for that all code blocks are all deciphered to finish and could begin to handle.
Below, in conjunction with the accompanying drawings and with three nuclear DSP be that example is described in detail said apparatus.Use has the multi-core DSP of 3 nuclears, and 3 nuclears is called Core0, Core1, Core2; Wherein, Core0 is as scheduling nuclear, and Core1 and Core2 are non-scheduling nuclear.The parallel processing of 3 nuclears is assisted as shown in Figure 2.
Wherein, the principle of scheduling nuclear scheduling is: the first, and if desired the processing resource of Adding User is no more than the restriction of monokaryon, carries out carrying out load sharing according to UE between each core; The second, the processing resource that Adding User needs surpasses the monokaryon disposal ability, and the user who takies the resource maximum is carried out subprocess decomposition carrying out parallel processing.
Describe the scheduling scheme of scheduling nuclear in detail below in conjunction with Fig. 3: as shown in Figure 3, each (for example: ProcessFunc) outsourcing one deck (called after: ProcessDispatch) function is again handled function.The ProcessDispatch function is at first dispatched this Process, if Core0 can oneself finish, then directly calling the ProcessFunc function handles, assign if desired, then the parameter packing is put in the parameter pond of Core1 and Core2, and notice Core1 and Core2 begin to handle, and the ProcessFunc that calls Core0 simultaneously handles and divides the part of tasking oneself.Core0 waits for the data that collection and treatment is intact then, collects neat ProcessFunc afterwards and disposes.
The handling process of non-scheduling nuclear as shown in Figure 4, below in conjunction with Fig. 4 the processing scheme of non-scheduling nuclear is elaborated, the processing scheme of non-scheduling nuclear is: non-scheduling nuclear increases the task DispatchTsk that priority is higher, the subprocess that special disposal scheduling nuclear Core0 assigns.This task is triggered by scheduling nuclear.DispatchTsk gets the shape ginseng of ProcessFunc in the parameter pond, calls the ProcessFunc function and handles, and after finishing this subprocess is provided with complement mark, and notice scheduling nuclear Core0.In order to reduce the stand-by period of scheduling nuclear Core0, the priority of DispatchTsk is arranged to Business Processing task height than this nuclear, DispatchTsk is in time responded.Do not have temporary controlledly at DispatchTsk, non-scheduling nuclear is handled the Business Processing task of this nuclear.
In addition, be noted that non-scheduling is examined and internuclear interruption is adopted in internuclear communication and regularly inquire about dual mode triggering DispatchTsk.
Device embodiment
In the present embodiment, a kind of Physical Uplink Shared Channel processing unit is provided, be used for by the multinuclear digital signal processor signal of the Physical Uplink Shared Channel of long evolving system being separated mediation decoding, Fig. 5 is the block diagram according to the Physical Uplink Shared Channel processing unit of apparatus of the present invention embodiment.
As shown in Figure 5, this Physical Uplink Shared Channel processing unit comprises: split module 502, be used for signal is split with modulation symbol, and the signal allocation that fractionation is obtained is carried out demodulation to a plurality of nuclears of multinuclear digital signal processor, and, split and be assigned to a plurality of nuclears according to its corresponding user and/or its code block and decipher for the signal of demodulation; A plurality of nuclears 504 are used for deciphering separating to be in harmonious proportion from the signal that splits module.
In addition, splitting module 502 also is used for the signal before deciphering is split with soft bit.
In addition, a plurality of nuclears 504 also are used for the signal after the soft bit fractionation is carried out descrambling.
In sum,, be in harmonious proportion decoding, reach maximum and eat dishes without rice or wine to have reduced the time delay of handling under the situation of flow satisfying, shortened the processing time greatly by utilizing multi-core DSP to handle separating of PUSCH channel by means of technical scheme of the present invention.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a physical uplink sharing channel handling method is used for by the multinuclear digital signal processor signal of the Physical Uplink Shared Channel of long evolving system being separated mediation decoding, it is characterized in that described method comprises:
When being used for described Signal Processing resource and surpassing the monokaryon disposal ability, from time domain described signal is carried out fractionation between the multinuclear with modulation symbol, and the signal allocation that fractionation is obtained is carried out demodulation to a plurality of nuclears of described multinuclear digital signal processor;
For the signal of demodulation, split and be assigned to described a plurality of nuclear according to its corresponding user and/or its code block and decipher.
2. method according to claim 1 is characterized in that, before deciphering, further comprises:
Described signal to demodulation splits and is dispensed to described a plurality of nuclear with soft bit, to carry out descrambling.
3. method according to claim 1 is characterized in that, the processing of deciphering by described a plurality of nuclears is specially:
For the control data part and the data division of the described signal of demodulation, split and be assigned to described a plurality of nuclear according to its corresponding user and carry out decomposition multiplex and handle, wherein, on a nuclear, the signal corresponding to same user is carried out demultiplexing;
Signal behind the decomposition multiplex is split as code block, and described code block is assigned to described a plurality of nuclear separates rate-matched and handle;
The code block of separating after the rate-matched by described a plurality of nuclears carries out the code block cyclic redundancy check (CRC), to finish the decoding to described code block;
Carry out the code block connection by described a plurality of code blocks of finishing decoding of checking,, wherein, on a nuclear, handle code block corresponding to same user until the code block of all finishing decoding being carried out the code block connection and obtaining transmission block;
A plurality ofly check described transmission block and carry out cyclic redundancy check (CRC) by described, wherein, on same nuclear, carry out verification corresponding to a user's transmission block.
4. according to each described method in the claim 1 to 3, it is characterized in that, further comprise:
Select a nuclear as scheduling nuclear in described a plurality of nuclears, described scheduling nuclear is used for that other nuclear is handled and/or distributed to a plurality of parts that obtain after splitting to be handled.
5. method according to claim 4 is characterized in that, described scheduling nuclear distributes according to the loading condition of predetermined allocation rule and/or described a plurality of nuclears.
6. a Physical Uplink Shared Channel processing unit is used for by the multinuclear digital signal processor signal of the Physical Uplink Shared Channel of long evolving system being separated mediation decoding, it is characterized in that described device comprises:
Split module, be used for when being used for described Signal Processing resource above the monokaryon disposal ability, from time domain described signal is carried out fractionation between the multinuclear with modulation symbol, and the signal allocation that fractionation is obtained is carried out demodulation to a plurality of nuclears of described multinuclear digital signal processor, and, split and be assigned to described a plurality of nuclear according to its corresponding user and/or its code block and decipher for the signal of demodulation;
Described a plurality of nuclear is used for deciphering separating to be in harmonious proportion from the signal that splits module.
7. device according to claim 6 is characterized in that, described fractionation module also is used for the signal before deciphering is split with soft bit.
8. device according to claim 7 is characterized in that, described a plurality of nuclears also are used for the described signal after the soft bit fractionation is carried out descrambling.
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| ES2905351T3 (en) | 2009-03-17 | 2022-04-08 | Nokia Solutions & Networks Oy | Configuring Periodic Feedback Information Transmission on a Physical Uplink Shared Channel (PUSCH) |
| CN102932092B (en) * | 2011-08-09 | 2017-07-11 | 中兴通讯股份有限公司 | The method of reseptance of the control information based on multipoint cooperative, apparatus and system |
| CN104301016B (en) * | 2014-09-28 | 2018-08-28 | 北京邮电大学 | A kind of MIMO parallel detecting methods and system based on multi-core DSP |
| CN110868274A (en) * | 2019-11-29 | 2020-03-06 | 慧众行知科技（北京）有限公司 | Signal demodulation method |
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| EP1065849A1 (en) * | 1999-06-29 | 2001-01-03 | Commissariat A L'energie Atomique | Transmission method for multi-MOK modulation/demodulation |
| CN1866940A (en) * | 2005-11-11 | 2006-11-22 | 华为技术有限公司 | Method and apparatus for processing signal |
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| EP1065849A1 (en) * | 1999-06-29 | 2001-01-03 | Commissariat A L'energie Atomique | Transmission method for multi-MOK modulation/demodulation |
| CN1866940A (en) * | 2005-11-11 | 2006-11-22 | 华为技术有限公司 | Method and apparatus for processing signal |
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Effective date of registration: 20171016 Address after: 300000 Tianjin city Nankai District South Road South Jiangxi No. 16 1 501 Patentee after: Zhao Xiaohua Address before: 518057 Nanshan District science and Technology Industrial Park, Guangdong high tech Industrial Park, ZTE building Patentee before: ZTE Corporation |
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