CN102271191A - Mobile terminal and method for data access thereof - Google Patents
Mobile terminal and method for data access thereof Download PDFInfo
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- CN102271191A CN102271191A CN2011102544891A CN201110254489A CN102271191A CN 102271191 A CN102271191 A CN 102271191A CN 2011102544891 A CN2011102544891 A CN 2011102544891A CN 201110254489 A CN201110254489 A CN 201110254489A CN 102271191 A CN102271191 A CN 102271191A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention provides a mobile terminal which comprises a memory unit, a processor, a buffer unit and at least one communication module, wherein, the memory unit which is connected to the processor is used for storing the data in the mobile terminal; the processor which is connected to the buffer unit is used for storing the data stored in the memory unit to the buffer unit synchronously; the buffer unit which is connected to the at least one communication module is used for storing the data synchronized with the memory unit; and the at least one communication module is used for accessing the buffer unit to acquire the needed data. Accordingly, the invention also provides a method for data access. By adopting the invention, the access rate of the communication module in the mobile terminal can be improved; the working load of the processor can be lessened, and main process resources and memory spaces can be released, so that the power dissipation of the processor is reduced, and both the stability and reliability of the mobile terminal are improved.
Description
Technical field
The present invention relates to communication technical field, in particular to portable terminal and data access method.
Background technology
The minimum unit pack of forming of present portable terminal hardware is drawn together application processor (AP), communication module (Modem), memory cell (MCP), power management module (PMU), the mode of data communication mainly comprises the mode of dedicated data transmission passage and shared drive between processor and communication module, in order to save the fabric swatch area, the Design Mode of main flow all is based on shared drive now, but communication module and memory cell are that internal memory is when carrying out transfer of data in this manner, must transmit by processor, especially when portable terminal carries a plurality of communication module, processor has reduced the access rate of communication module and the operating efficiency of processor to the processing of the data access request of each communication module, and when a plurality of communication modules are initiated data access request to processor simultaneously, even may cause portable terminal low memory or deadlock.
Therefore, need a kind of new data access technology, can improve the access rate of communication module in the portable terminal, reduce the operating load of processor, discharge host process resource and memory headroom, thereby reduce the power consumption of processor, and improve the stability and the reliability of portable terminal.
Summary of the invention
The present invention just is being based on the problems referred to above, a kind of new portable terminal and data access method have been proposed, can improve the access rate of communication module in the portable terminal, reduce the operating load of processor, discharge host process resource and memory headroom, thereby reduce the power consumption of processor, and improve the stability and the reliability of portable terminal.
According to portable terminal of the present invention, can comprise: memory cell, be connected to processor, be used to store the data of described portable terminal; Described processor is connected to buffer unit, is used for the data sync storage of described memory cell to described buffer unit; Described buffer unit is connected at least one communication module, is used to store the described data synchronous with described memory cell; Described at least one communication module is used to visit described buffer unit, obtains desired data.In this technical scheme, communication module is no longer carried out data access via processor to memory cell, but buffer unit is directly carried out data access, reduces the operating load of processor, improves the access efficiency of communication module.
In technique scheme, preferably, stores synchronized to the data of described buffer unit are the data of described at least one communication module visit, when described memory cell has newly-increased data, described processor will described newly-increased data sync storage described buffer unit extremely.In this technical scheme, processor is updated to buffer unit with the data in real time in the memory cell, make in the buffer unit data all the time with memory cell in related content be consistent, prevent to cause the read latency or the error in data of communication module, data in synchronization can be data all in the memory cell, also can be for example address lists of the frequent data of visiting of each communication module.
In technique scheme, preferably, when described at least one communication module reads described desired data from described buffer unit, if do not have described desired data in the described buffer unit, then by the data in the described memory cell of described processor access, reading described desired data, and the described desired data that will read is stored to described buffer unit.In this technical scheme, when not having the required data of communication module in the buffer unit, can from memory cell, read desired data and the desired data that reads is stored in the buffer unit by processor, the disappearance of data when avoiding communication module to conduct interviews next time.
In technique scheme, preferably, described processor is a multi-core processor, when described at least one communication module reads described desired data from described buffer unit, if do not have described desired data in the described buffer unit, the corresponding respectively process of two kernels that then starts described multi-core processor is also moved two described processes simultaneously, one of them process is used for described at least one communication module and reads described desired data from described memory cell, the another one process is used for the described desired data stores synchronized of described memory cell to described buffer unit, so that read operation and simultaneous operation parallel processing.In this technical scheme, for the multinuclear portable terminal, can make full use of multi-core processor and finish a plurality of links synchronously, increase work efficiency.
In technique scheme, preferably, have read operation request to described buffer unit simultaneously if described buffer unit is had write operation requests, then described processor is controlled to finish and carries out described read operation after the described write operation or be controlled at carrying out described write operation after finishing described read operation.In this technical scheme, when receiving write operation requests and read operation request simultaneously for buffer unit, then incite somebody to action wherein carry by processor, after handling another, handle again by the operation requests of carry, reading and writing operation requests in the same time is carried out in order, when raising the efficiency, prevent to cause the wrong of data or run off.
According to another aspect of the invention, also proposed a kind of data access method, having comprised: to buffer unit, each communication module in the described portable terminal is visited described buffer unit and is obtained desired data with the data sync storage in the memory cell of portable terminal.In this technical scheme, communication module is no longer carried out data access via processor to memory cell, but buffer unit is directly carried out data access, reduces the operating load of processor, improves the access efficiency of communication module.
In technique scheme, preferably, stores synchronized to the data of described buffer unit are the required data of described at least one communication module, when described memory cell has newly-increased data, will described newly-increased data sync storage described buffer unit extremely.In this technical scheme, processor is updated to buffer unit with the data in real time in the memory cell, make in the buffer unit data all the time with memory cell in related content be consistent, prevent to cause the read latency or the error in data of communication module, data in synchronization can be data all in the memory cell, also can be for example address lists of the frequent data of visiting of each communication module.
In technique scheme, preferably, when described at least one communication module reads desired data from described buffer unit, if do not have described desired data in the described buffer unit, then by the data in the described memory cell of processor access, reading described desired data, and the described desired data that will read is stored to described buffer unit.In this technical scheme, when not having the required data of communication module in the buffer unit, buffer unit can read desired data and the desired data that reads is stored in the buffer unit by processor real-time from memory cell, the disappearance of data when avoiding communication module to conduct interviews next time.
In technique scheme, preferably, described processor is a multi-core processor, when described at least one communication module reads described desired data from described buffer unit, if do not have described desired data in the described buffer unit, the corresponding respectively process of two kernels that then starts described multi-core processor is also moved two described processes simultaneously, one of them process is used for described at least one communication module and reads described desired data from described memory cell, the another one process is used for the described desired data stores synchronized of described memory cell to described buffer unit, so that read operation and simultaneous operation parallel processing.In this technical scheme, for the multinuclear portable terminal, can make full use of multi-core processor and finish a plurality of links synchronously, increase work efficiency.
In technique scheme, preferably, if have read operation request when described buffer unit is had write operation requests, finish described write operation after then after finishing described write operation, carrying out described read operation or finishing described read operation to described buffer unit.
In this technical scheme, when receiving write operation requests and read operation request simultaneously for buffer unit, then incite somebody to action wherein carry by processor, after handling another, handle again by the operation requests of carry, reading and writing operation requests in the same time is carried out in order, when raising the efficiency, prevent to cause the wrong of data or run off.
Description of drawings
Fig. 1 shows the block diagram of portable terminal according to an embodiment of the invention;
Fig. 2 shows the schematic diagram of portable terminal according to an embodiment of the invention;
Fig. 3 shows the schematic diagram that according to an embodiment of the invention memory cell is carried out write operation;
Fig. 4 shows the schematic diagram that according to an embodiment of the invention buffer unit is carried out read operation; And
Fig. 5 shows the flow chart of data access method according to an embodiment of the invention.
Embodiment
In order more to be expressly understood above-mentioned purpose of the present invention, feature and advantage, the present invention is further described in detail below in conjunction with the drawings and specific embodiments.
Set forth a lot of details in the following description so that fully understand the present invention, still, the present invention can also adopt other to be different from other modes described here and implement, and therefore, the present invention is not limited to the restriction of following public specific embodiment.
Fig. 1 shows the block diagram of portable terminal according to an embodiment of the invention.
As shown in Figure 1, portable terminal 100 can comprise according to an embodiment of the invention: memory cell 102, be connected to processor, and be used for the data of memory mobile terminal 100; Processor 104 is connected to buffer unit 106, is used for data sync storage with memory cell 102 to buffer unit 106; Buffer unit 106 is connected at least one communication module 108, is used for storage and memory cell 102 data in synchronization; At least one communication module 108 is used for access cache unit 106, obtains desired data.In this technical scheme, communication module is no longer carried out data access via processor to memory cell 102, but buffer unit is directly carried out data access, reduces the operating load of processor, improves the access efficiency of communication module.
In technique scheme, preferably, stores synchronized is the data of at least one communication module 108 visit to the data of buffer unit 106, and when memory cell 102 has newly-increased data, processor 104 will increase data sync storage newly to buffer unit 106.In this technical scheme, processor 104 is updated to buffer unit 106 with the data in real time in the memory cell 102, make in the buffer unit 106 data all the time with memory cell 102 in related content be consistent, prevent to cause the read latency or the error in data of communication module 108, data in synchronization can be data all in the memory cell 102, also can be for example address lists of the frequent data of visiting of each communication module.
In technique scheme, preferably, when at least one communication module 108 reads desired data from buffer unit 106, if do not have desired data in the buffer unit 106, then by the data in processor 104 storage unit access 102, reading desired data, and the desired data that reads is stored to buffer unit 106.In this technical scheme, when not having the required data of communication module 108 in the buffer unit 106, can from memory cell 102, read desired data and the desired data that reads is stored in the buffer unit 106 by processor 104, the disappearance of data when avoiding communication module to conduct interviews for 108 next times.
In technique scheme, preferably, described processor 104 is a multi-core processor, when at least one communication module 108 reads desired data from buffer unit 106, if do not have desired data in the buffer unit 106, then two of multi-core processor corresponding respectively processes of kernel are also moved two processes simultaneously, one of them process is used at least one communication module 108 and reads desired data from memory cell 102, the another one process is used for desired data stores synchronized with memory cell 102 to buffer unit 106, so that read operation and simultaneous operation parallel processing.In this technical scheme, for the multinuclear portable terminal, can make full use of multi-core processor 104 and finish a plurality of links synchronously or quickly, increase work efficiency.
In technique scheme, preferably, have read operation request to buffer unit 106 simultaneously if buffer unit 106 is had write operation requests, then processor 104 is controlled to finish and carries out read operation after the write operation or be controlled at carrying out write operation after finishing read operation.In this technical scheme, when receiving write operation requests and read operation request simultaneously for buffer unit 106, then incite somebody to action wherein carry by processor 104, after handling another, handle again by the operation requests of carry, reading and writing operation requests in the same time is carried out in order, when raising the efficiency, prevent to cause the wrong of data or run off.
Fig. 2 shows the schematic diagram of portable terminal according to an embodiment of the invention.
As shown in Figure 2, portable terminal 200 according to still another embodiment of the invention can comprise processor 204 (kernel 1 and kernel 2), communication module 208 (communication module 1 and communication module 2), memory cell 202 (for example memory cell among Fig. 1 102) and buffer unit 206 (for example buffer unit among Fig. 1 106).This buffer unit 206 is different with memory cell 202, communication module 208 is storage unit access 202 directly, need by processor 204 ability storage unit access 202, and for buffer unit 206, communication module 208 can directly be visited, the total data of storage or partial data in the memory cell 202 that it is synchronous (partial data for example communication module 208 needs frequent address list of visiting, network download application etc.), we can say that also buffer unit 206 has been preserved the backup of total data in the memory cell 202 or fragment data.As shown in FIG., when communication module 1 need be checked address list, directly access cache unit 206 obtained desired data, and need not to ask storage unit access 202 by processor 1, reduce the operating load of processor, accelerated the speed of data access.Have only when not preserving related data in the buffer unit 206, just can from memory cell 202, obtain related data by request processor 1, then this related data is saved in the buffer unit 206, when needing this related data next time, can directly visit this buffer unit 206, in buffer unit 206, do not have under the data conditions of communication module 1 needs, because processor 204 is dual cores, the process that then can move two corresponding different kernels of difference simultaneously (starts the process 1 of operation kernel 1 correspondence, start the process 2 of operation kernel 2 correspondences, process 1 and process 2 are moved simultaneously), one of them process (for example, process 1) is used for communication module 1 and reads desired data from memory cell 202, the another one process (for example, process 2) be used for desired data stores synchronized with memory cell 202 to buffer cell 206, these two processes are carried out simultaneously, make that read operation and simultaneous operation can parallel processings.The mechanism of this read operation has reduced the cost of transfer of data, has discharged host process resource and memory headroom, thereby has reduced the power consumption of processor.
At this, should be appreciated that portable terminal can be that the monokaryon single mode also can be the multinuclear multimode, key has been to propose the memory that this communication module of buffer unit can directly be visited, and is not limited in the example shown in Fig. 2.
Transmission for data relates to writing and reading of data, and therefore, the data when respectively described portable terminal being carried out data access below in conjunction with Fig. 3 and Fig. 4 write and read process and are elaborated.
Fig. 3 shows the schematic diagram that according to an embodiment of the invention memory cell is carried out write operation; Fig. 4 shows the schematic diagram that according to an embodiment of the invention buffer unit is carried out read operation.
As shown in Figure 3, data block 1 among the figure and data block 2 are kept in the memory cell 302, related application corresponding storage territory for supposition, when the storage area set in the memory cell 302 (for example memory cell 102 of Fig. 1 and the memory cell 202 among Fig. 2) such as data block 1 and/or data block 2 are carried out write operation, will trigger an automatic simultaneous operation 306, corresponding data are write storage area such as data block 1 and/or the data block of setting in the buffer unit 304 (for example buffer unit 106 of Fig. 1 and the buffer unit 206 among Fig. 2) 2 simultaneously, the data of the storage area of setting in memory cell 302 and the buffer unit 304 are consistent, can be understood as for the automatic simultaneous operation 306 here, data in the buffer unit 304 are backups of the storage area data of setting in the memory cell 302, in each clock cycle, all to keep data consistent all the time, when newly-increased record is arranged in the memory cell 302, upgrade corresponding data in the buffer unit 304 simultaneously, keep avoiding causing read latency or error in data synchronously.
And for the process of carrying out read operation as shown in Figure 4, when communication module is initiated read operation, at first judge in the buffer unit 404 (being the buffer unit 304 among Fig. 3) whether corresponding data is arranged, if have then directly return corresponding data, i.e. completing steps 408 (from buffer unit 404, reading corresponding data) and step 412 (returning the corresponding data that from buffer unit 404, reads).If do not have corresponding data in the buffer unit 404, then initiate read operation to memory cell 402 (being the memory cell 302 among Fig. 3), can finish Control on Communication automatically by the process of current free time on the processor cores, return data after the reading of data from memory cell 402, completing steps 408 (reads corresponding data from buffer unit 404, this corresponding data not in this buffer unit 404, then from memory cell 402, read corresponding data by processor) and step 410 (related data that will read from memory cell 402 is back to communication module), in addition, terminal also can be carried out the automatic simultaneous operation 406 (related data that will read is saved in the buffer unit 404 simultaneously) of data from memory cell 402, if processor is for being polycaryon processor, then can carry out the parallel processing of read operation and simultaneous operation to data, start the process of two corresponding different kernels of difference and move this two processes simultaneously, one of them process is used for communication module and reads corresponding data from memory cell 402, the another one process is used for this corresponding data stores synchronized with memory cell 402 to buffer unit 404, the data that read in the memory cell 402 are write in the buffer unit 404 simultaneously, to improve the hit rate of data, the disappearance of data when avoiding next read operation.This read operation mechanism has reduced the cost of transfer of data, discharges host process resource and memory headroom, thereby has reduced the power consumption of processor.In addition, when buffer unit 404 is write simultaneous operation,, can hang up read operation, wait and to be writtenly carry out read operation again after finishing synchronously if the read operation request of pair buffer unit 404 is arranged simultaneously.
Describe data access method according to an embodiment of the invention in detail below in conjunction with Fig. 5.
As shown in Figure 5, data access method comprises according to an embodiment of the invention: step 502, to buffer unit, each the communication module access cache unit in the portable terminal obtains desired data with the data sync storage in the memory cell of portable terminal.In this technical scheme, communication module is no longer carried out data access via processor to memory cell, but buffer unit is directly carried out data access, reduces the operating load of processor, improves the access efficiency of communication module.
In technique scheme, preferably, stores synchronized to the data of buffer unit are the required data of at least one communication module, when memory cell has newly-increased data, will increase data sync storage newly to buffer unit.In this technical scheme, processor is updated to buffer unit with the data in real time in the memory cell, make in the buffer unit data all the time with memory cell in related content be consistent, prevent to cause the read latency or the error in data of communication module.
In technique scheme, preferably, when at least one communication module reads desired data from buffer unit, if do not have desired data in the buffer unit, then by the data in the processor access memory cell, reading desired data, and the desired data that reads is stored to buffer unit.In this technical scheme, when not having the required data of communication module in the buffer unit, can from memory cell, read desired data and desired data is stored in the buffer unit, the data disappearance when avoiding communication module to conduct interviews next time by processor.
In technique scheme, preferably, described processor is a multi-core processor, when at least one communication module reads desired data from buffer unit, if do not have desired data in the buffer unit, the corresponding respectively process of two kernels that then starts multi-core processor is also moved two processes simultaneously, one of them process is used at least one communication module and reads desired data from memory cell, the another one process is used for desired data stores synchronized with memory cell to buffer unit, so that read operation and simultaneous operation parallel processing.In this technical scheme, for the multinuclear portable terminal, can make full use of multi-core processor and finish a plurality of links synchronously or quickly, increase work efficiency.
In technique scheme, preferably,, then after finishing write operation, carry out read operation or after finishing read operation, finish write operation if having read operation request when buffer unit had write operation requests to buffer unit.In this technical scheme, when receiving write operation requests and read operation request simultaneously for buffer unit, then incite somebody to action wherein carry by processor, after handling another, handle again by the operation requests of carry, reading and writing operation requests in the same time is carried out in order, when raising the efficiency, prevent to cause the wrong of data or run off.
More than be described with reference to the accompanying drawings technical scheme of the present invention, consider under the existing scheme, communication module and memory cell are that internal memory is when carrying out transfer of data, must transmit by processor, especially when portable terminal carries a plurality of communication module, processor has reduced the access rate of communication module and the operating efficiency of processor to the processing of the data access request of each communication module, and when a plurality of communication modules are initiated data access request to processor simultaneously, even may cause portable terminal low memory or deadlock, according to new portable terminal of the present invention and data access method, reached following technique effect:
1, improves the access rate of communication module in the portable terminal;
2, reduce the operating load of processor, discharge host process resource and memory headroom, thereby reduce the power consumption of processor, and improve the stability and the reliability of portable terminal.
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 (10)
1. a portable terminal is characterized in that, comprising:
Memory cell is connected to processor, is used to store the data of described portable terminal;
Described processor is connected to buffer unit, is used for the data sync storage of described memory cell to described buffer unit;
Described buffer unit is connected at least one communication module, is used to store the described data synchronous with described memory cell;
Described at least one communication module is used to visit described buffer unit, obtains desired data.
2. portable terminal according to claim 1, it is characterized in that, stores synchronized to the data of described buffer unit are the data of described at least one communication module visit, when described memory cell has newly-increased data, described processor will described newly-increased data sync storage described buffer unit extremely.
3. portable terminal according to claim 1, it is characterized in that, when described at least one communication module reads described desired data from described buffer unit, if do not have described desired data in the described buffer unit, then by the data in the described memory cell of described processor access, reading described desired data, and the described desired data that will read is stored to described buffer unit.
4. portable terminal according to claim 3, it is characterized in that, described processor is a multi-core processor, when described at least one communication module reads described desired data from described buffer unit, if do not have described desired data in the described buffer unit, the corresponding respectively process of two kernels that then starts described multi-core processor is also moved two described processes simultaneously, one of them process is used for described at least one communication module and reads described desired data from described memory cell, the another one process is used for the described desired data stores synchronized of described memory cell to described buffer unit, so that read operation and simultaneous operation parallel processing.
5. according to each described portable terminal in the claim 1 to 4, it is characterized in that, have read operation request to described buffer unit simultaneously if described buffer unit is had write operation requests, then described processor is controlled to finish and carries out described read operation after the described write operation or be controlled at carrying out described write operation after finishing described read operation.
6. a data access method is characterized in that, comprising:
To buffer unit, each communication module in the described portable terminal is visited described buffer unit and is obtained desired data with the data sync storage in the memory cell of portable terminal.
7. data access method according to claim 6, it is characterized in that, stores synchronized to the data of described buffer unit are the required data of described at least one communication module, when described memory cell has newly-increased data, will described newly-increased data sync storage described buffer unit extremely.
8. data access method according to claim 6, it is characterized in that, when described at least one communication module reads desired data from described buffer unit, if do not have described desired data in the described buffer unit, then state data in the memory cell by processor access, reading described desired data, and the described desired data that will read is stored to described buffer unit.
9. data access method according to claim 8, it is characterized in that, described processor is a multi-core processor, when described at least one communication module reads described desired data from described buffer unit, if do not have described desired data in the described buffer unit, the corresponding respectively process of two kernels that then starts described multi-core processor is also moved two described processes simultaneously, one of them process is used for described at least one communication module and reads described desired data from described memory cell, the another one process is used for the described desired data stores synchronized of described memory cell to described buffer unit, so that read operation and simultaneous operation parallel processing.
10. according to each described data access method in the claim 6 to 9, it is characterized in that, if have read operation request when described buffer unit is had write operation requests, finish described write operation after then after finishing described write operation, carrying out described read operation or finishing described read operation to described buffer unit.
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Application publication date: 20111207 |