CN101795184A - Memory management method and device - Google Patents
Memory management method and device Download PDFInfo
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- CN101795184A CN101795184A CN201010104403A CN201010104403A CN101795184A CN 101795184 A CN101795184 A CN 101795184A CN 201010104403 A CN201010104403 A CN 201010104403A CN 201010104403 A CN201010104403 A CN 201010104403A CN 101795184 A CN101795184 A CN 101795184A
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Abstract
The embodiment of the invention provides a memory management method and a memory management device. The method mainly comprises the following steps: receiving an RLC (radio link control) block sent by a network side, allocating memory for the RLC block, performing idle decoding on the RLC block, after the idle decoding fails, judging whether block sequence number information of the RLC block subjected to the idle decoding contains the block sequence number of the RLC block or not, if so, releasing the memory allocated to the RLC block, and otherwise, storing soft value information of the RLC block in the memory allocated to the RLC block. The method and the device of the invention can solve the problem of leakage of the memory of a mobile station caused by uplink interactive time difference, and can improve the service efficiency of the memory of the mobile station.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to a kind of EMS memory management process and device.
Background technology
IR (Incremental Redundancy, incremental redundancy) is EGPRS (EnhancedGPRS, enhancing property GPRS) key characteristic of system's introducing, this characteristic can be accelerated (the Radio Link Control to RLC, Radio Link control) decoding of piece, effectively reduce the network number of retransmissions, improve data throughput, especially more remarkable effect when wireless channel conditions is relatively poor.
The basic principle of above-mentioned IR characteristic is: for a RLC piece, if the receiving terminal decoding failure, the soft value information of this RLC piece can not be dropped, but is stored in the IR internal memory of receiving terminal.When transmitting terminal retransmitted this RLC piece, if receiving terminal decoding failure still, then receiving terminal was deciphered after this soft value information of twice is merged again, can significantly improve the success rate of decoding like this.
The handling process of the management method of a kind of IR internal memory of the prior art comprises following treatment step as shown in Figure 1:
It is the RLC piece of X that step 11, BSC (base station controller, base station controller) send BSN (Block Sequence Number, piece sequence number) to MS (MobileStation, travelling carriage).
After step 12, MS receive the RLC piece that described BSN is X, to this RLC piece decoding failure of eating dishes without rice or wine.MS is that this RLC piece distributes the IR internal memory, the soft value information of this RLC piece is stored in the IR internal memory, and in the IR internal memory, note BSN, MCS (the Modulation and CodingScheme of this RLC piece, modulation coding mode), information such as TFI (Temporary Flow Identity, temporary flow identity) and storage address.
Then, MS sends to BSC and does not receive that BSN is the report of the RLC piece of X.
After the report of the RLC piece that it is X that step 13, BSC receive the above-mentioned BSN of not receiving, retransmit the RLC piece that above-mentioned BSN is X to MS.BSC can retransmit the RLC piece that this BSN is X to MS at interval according to preset time, is the report of the RLC piece of X until receive the BSN that receives of MS transmission.
After step 14, MS receive the RLC piece of above-mentioned re-transmission, to the RLC piece of this re-transmission decoding failure of eating dishes without rice or wine.MS is stored in the soft value information of the RLC piece of this re-transmission in the IR internal memory, and notes the information such as BSN, MCS, TFI and storage address of the RLC piece of this re-transmission in the IR internal memory.
MS carries out joint decoding according to the information of the RLC piece of RLC piece that receives the first time of storing in the above-mentioned IR internal memory and re-transmission.After the joint decoding success, discharging above-mentioned is the IR internal memory of the RLC piece distribution of X to BSN, sends to BSC and receives that BSN is the report of the RLC piece of X.
In realizing process of the present invention, the inventor finds the management method of above-mentioned IR internal memory of the prior art, and there are the following problems at least:
As shown in Figure 1, sent at MS and to have received that BSN is the report of the RLC piece of X to BSC, but BSC do not receive under the situation of this report, because BSC is that to retransmit BSN to MS at interval according to preset time be the RLC piece of X, it is the RLC piece of X that BSC retransmits BSN to MS once more.After MS receives the RLC piece of this re-transmission,, and be this RLC piece storage allocation once more to the RLC piece of this re-transmission decoding failure of eating dishes without rice or wine.
Then, BSC receives that the BSN that receives that above-mentioned MS sends is the report of the RLC piece of X, so it is the RLC piece of X that BSC no longer retransmits BSN to MS.Thereby the RLC piece that causes the re-transmission that above-mentioned MS receives at last can't be finished the decoding of eating dishes without rice or wine, and the internal memory that distributes for the RLC piece of this re-transmission that receives at last will can not get discharging always, cause the IR internal memory to be revealed.
Summary of the invention
Embodiments of the invention provide a kind of management method and device of IR internal memory, reveal to avoid the IR internal memory, improve IR internal memory service efficiency.
A kind of EMS memory management process comprises:
Receive the Radio Link control RLC piece that network side sends, give described RLC piece storage allocation, described RLC piece is eated dishes without rice or wine to decipher;
Behind the described decoding failure of eating dishes without rice or wine, judge the piece sequence number that whether comprises described RLC piece in the piece sequence number information of finishing the RLC piece of eating dishes without rice or wine to decipher of storing, if then discharge the internal memory of distributing for described RLC piece; Otherwise, the soft value information of described RLC piece is kept in the internal memory that distributes to described RLC piece.
A kind of memory management device comprises:
The decoding processing module is used to receive the Radio Link control RLC piece that network side sends, and gives described RLC piece storage allocation, and described RLC piece is eated dishes without rice or wine to decipher;
Judging treatmenting module, be used for behind the decoding failure of eating dishes without rice or wine of described decoding processing module, judge the piece sequence number that whether comprises described RLC piece in the piece sequence number information of finishing the RLC piece of eating dishes without rice or wine to decipher of storing, if then discharge the internal memory of distributing for described RLC piece; Otherwise, the soft value information of described RLC piece is kept in the internal memory that distributes to described RLC piece.
The technical scheme that is provided by the embodiment of the invention described above as can be seen, the embodiment of the invention has been finished the piece sequence number information of the RLC piece of eating dishes without rice or wine to decipher by storage in MS, the problem of the travelling carriage internal memory leakage that causes owing to the uplink interaction time difference can be solved, the internal memory service efficiency of travelling carriage can be improved.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the process chart of the management method of a kind of IR internal memory of the prior art;
The process chart of the management method of a kind of IR internal memory that Fig. 2 provides for the embodiment of the invention one;
The specific implementation structure chart of a kind of memory management device that Fig. 3 provides for the embodiment of the invention.
Embodiment
For ease of understanding, be that example is further explained explanation below in conjunction with accompanying drawing with several specific embodiments, and each embodiment does not constitute the qualification to the embodiment of the invention to the embodiment of the invention.
Embodiment one
The handling process of the management method of a kind of IR internal memory that this embodiment provides comprises following treatment step as shown in Figure 2:
It is the RLC piece of X that step 21, MS receive the BSN that BSC sends, and MS be that this RLC piece distributes the IR internal memory, this RLC piece is eated dishes without rice or wine to decipher, eat dishes without rice or wine successfully decoded after, execution in step 29; Behind the decoding failure of eating dishes without rice or wine, execution in step 22.
The embodiment of the invention is set a memory cell in MS, preserve the BSN that has completed successfully the RLC piece of eating dishes without rice or wine to decipher in this memory cell.
In actual applications, said memory cells can be a receive window, the maximum quantity of the RLC piece that the big or small corresponding MS of this receive window can receive in a time slot, and this receive window is divided into an above-mentioned maximum quantity element, and the BSN of each RLC piece that the numbering of each element can receive in a time slot according to MS numbers.Such as, in the EGPRS system, above-mentioned maximum quantity is 512, the BSN of each RLC piece that MS receives in a time slot is numbered 1-512, so above-mentioned receive window is divided into 512 elements, the numbering of each element can be followed successively by from 1-512.Preserve the BSN of the RLC piece deciphered of successfully having eated dishes without rice or wine in each element in above-mentioned receive window.
Not finding above-mentioned BSN in each element in receive window is the BSN of the RLC piece of X, and then execution in step 23; Finding above-mentioned BSN in each element in receive window is the BSN of the RLC piece of X, and then execution in step 29.In above-mentioned search procedure, when the BSN of each RLC piece that receives according to MS when the numbering of each element in the above-mentioned receive window numbers, can directly search whether store BSNX in the element that is numbered X in a time slot.
Then, MS sends to BSC and does not receive that BSN is the report of the RLC piece of X.Execution in step 24.
After the report of the RLC piece that it is X that step 24, BSC receive the above-mentioned BSN of not receiving, retransmit the RLC piece that above-mentioned BSN is X to MS.BSC can retransmit the RLC piece that this BSN is X to MS at interval according to preset time, is the report of the RLC piece of X until receive the BSN that receives of MS transmission.
After MS receives the RLC piece of above-mentioned re-transmission, distribute I R internal memory for the RLC piece of above-mentioned re-transmission, to the decoding of eating dishes without rice or wine of the RLC piece of this re-transmission, eat dishes without rice or wine successfully decoded after, execution in step 210; Behind the decoding failure of eating dishes without rice or wine, execution in step 25.
When do not find above-mentioned BSN in memory cell is the BSN of the RLC piece of X, and then execution in step 26; When find above-mentioned BSN in memory cell is the BSN of the RLC piece of X, and then execution in step 29.
Then, receive that to the BSC transmission BSN is the report of the RLC piece of X.
Then, receive that to the BSC transmission BSN is the report of the RLC piece of X.
This embodiment is by preserving the BSN that has completed successfully the RLC piece of eating dishes without rice or wine to decipher in the memory cell in MS, the RLC piece that can solve the re-transmission that MS receives can't be finished the decoding of eating dishes without rice or wine, the internal memory that distributes for the RLC piece of this re-transmission that receives at last will can not get the problem that discharges always, can improve the IR internal memory service efficiency of MS.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
The embodiment of the invention also provides a kind of memory management device, and its specific implementation structure specifically can comprise as shown in Figure 3:
Decoding processing module 31 is used to receive the Radio Link control RLC piece that network side sends, and gives described RLC piece storage allocation, and described RLC piece is eated dishes without rice or wine to decipher;
Judging treatmenting module 32, be used for behind the decoding failure of eating dishes without rice or wine of described decoding processing module, judge the piece sequence number that whether comprises described RLC piece in the piece sequence number information of finishing the RLC piece of eating dishes without rice or wine to decipher of storing, if then discharge the internal memory of distributing for described RLC piece; Otherwise, the soft value information of described RLC piece is kept in the internal memory that distributes to described RLC piece.
Described memory management device can also comprise:
Piece sequence number memory module 33 is used to store the piece sequence number information of having finished the RLC piece of eating dishes without rice or wine to decipher.
Described decoding processing module 31 also is used for giving the RLC piece storage allocation of described re-transmission behind the described RLC piece that receives the network side re-transmission, and the RLC piece of described re-transmission is eated dishes without rice or wine to decipher; Described judging treatmenting module 32, also be used for behind the described decoding failure of eating dishes without rice or wine, judge the piece sequence number that whether comprises the RLC piece of described re-transmission in the piece sequence number information of finishing the RLC piece of eating dishes without rice or wine to decipher of storing, if then discharge internal memory to the RLC piece distribution of described re-transmission; Otherwise, the soft value information of the RLC piece of described re-transmission is kept in the internal memory that the RLC piece to described re-transmission distributes.
Described decoding processing module 31 also is used for carrying out joint decoding according to the RLC piece of described re-transmission and the soft value information of the last RLC piece that receives; Described judging treatmenting module 32 also is used for after the failure of described joint decoding, and the soft value information of the RLC piece of described re-transmission is stored in the internal memory that the RLC piece that receives to the described last time distributes, and discharges the internal memory that the RLC piece of giving described re-transmission distributes; After the success of described joint decoding, discharge the internal memory that the RLC piece of giving described re-transmission and the last RLC piece that receives distribute, the piece sequence number of the RLC piece of described re-transmission is stored.
In sum, the embodiment of the invention can solve the problem of the travelling carriage I R internal memory leakage that causes owing to the uplink interaction time difference, can improve the IR internal memory service efficiency of travelling carriage, and then improves the message transmission rate of travelling carriage.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (12)
1. an EMS memory management process is characterized in that, comprising:
Receive the Radio Link control RLC piece that network side sends, give described RLC piece storage allocation, described RLC piece is eated dishes without rice or wine to decipher;
Behind the described decoding failure of eating dishes without rice or wine, judge the piece sequence number that whether comprises described RLC piece in the piece sequence number information of finishing the RLC piece of eating dishes without rice or wine to decipher of storing, if then discharge the internal memory of distributing for described RLC piece; Otherwise, the soft value information of described RLC piece is kept in the internal memory that distributes to described RLC piece.
2. EMS memory management process according to claim 1 is characterized in that, described method also comprises:
To described RLC piece eat dishes without rice or wine successfully decoded after, the internal memory of distributing discharge for described RLC piece, the piece sequence number of the described RLC piece of storage in the memory cell of setting.
3. EMS memory management process according to claim 2, it is characterized in that, described memory cell comprises receive window, the maximum quantity of the RLC piece that the big or small corresponding travelling carriage of described receive window can receive in a time slot, described receive window is divided into a described maximum quantity element, the piece sequence number of a RLC piece of finishing to eat dishes without rice or wine to decipher of storage in each element.
4. according to claim 1,2 or 3 described EMS memory management process, it is characterized in that described soft value information with described RLC piece also comprises after being kept at the internal memory that distributes to described RLC piece:
After receiving the described RLC piece of network side re-transmission, give the RLC piece storage allocation of described re-transmission, the RLC piece of described re-transmission is eated dishes without rice or wine to decipher;
Behind the described decoding failure of eating dishes without rice or wine, judge the piece sequence number that whether comprises the RLC piece of described re-transmission in the piece sequence number information of finishing the RLC piece of eating dishes without rice or wine to decipher of storing, if then discharge internal memory to the RLC piece distribution of described re-transmission; Otherwise, the soft value information of the RLC piece of described re-transmission is kept in the internal memory that the RLC piece to described re-transmission distributes.
5. EMS memory management process according to claim 4 is characterized in that, the soft value information of described RLC piece with described re-transmission also comprises after being kept in the internal memory that the RLC piece to described re-transmission distributes:
Carry out joint decoding according to the RLC piece of described re-transmission and the soft value information of the last RLC piece that receives;
After the failure of described joint decoding, the soft value information of the RLC piece of described re-transmission is stored in the internal memory that the RLC piece that receives to the described last time distributes, discharge the internal memory that the RLC piece of giving described re-transmission distributes; After the success of described joint decoding, discharge the internal memory that the RLC piece of giving described re-transmission and the last RLC piece that receives distribute, the piece sequence number of the RLC piece of described re-transmission is stored.
6. EMS memory management process according to claim 1 is characterized in that, described internal memory comprises: the incremental redundancy internal memory in the enhancing property general wireless packet service system.
7. a memory management device is characterized in that, comprising:
The decoding processing module is used to receive the Radio Link control RLC piece that network side sends, and gives described RLC piece storage allocation, and described RLC piece is eated dishes without rice or wine to decipher;
Judging treatmenting module, be used for behind the decoding failure of eating dishes without rice or wine of described decoding processing module, judge the piece sequence number that whether comprises described RLC piece in the piece sequence number information of finishing the RLC piece of eating dishes without rice or wine to decipher of storing, if then discharge the internal memory of distributing for described RLC piece; Otherwise, the soft value information of described RLC piece is kept in the internal memory that distributes to described RLC piece.
8. memory management device according to claim 7 is characterized in that, comprising:
Piece sequence number memory module is used to store the piece sequence number information of having finished the RLC piece of eating dishes without rice or wine to decipher.
9. according to claim 7 or 8 described memory management devices, it is characterized in that:
Described decoding processing module also is used for giving the RLC piece storage allocation of described re-transmission behind the described RLC piece that receives the network side re-transmission, and the RLC piece of described re-transmission is eated dishes without rice or wine to decipher;
Described judging treatmenting module, also be used for behind decoding failure that the RLC piece of described re-transmission is eated dishes without rice or wine, judge the piece sequence number that whether comprises the RLC piece of described re-transmission in the piece sequence number information of finishing the RLC piece of eating dishes without rice or wine to decipher of storing, if then discharge internal memory to the RLC piece distribution of described re-transmission; Otherwise, the soft value information of the RLC piece of described re-transmission is kept in the internal memory that the RLC piece to described re-transmission distributes.
10. memory management device according to claim 9 is characterized in that:
Described decoding processing module also is used for carrying out joint decoding according to the RLC piece of described re-transmission and the soft value information of the last RLC piece that receives;
Described judging treatmenting module also is used for after the failure of described joint decoding, and the soft value information of the RLC piece of described re-transmission is stored in the internal memory that the RLC piece that receives to the described last time distributes, and discharges the internal memory that the RLC piece of giving described re-transmission distributes; After the success of described joint decoding, discharge the internal memory that the RLC piece of giving described re-transmission and the last RLC piece that receives distribute, the piece sequence number of the RLC piece of described re-transmission is stored.
11. memory management device according to claim 8, it is characterized in that, described sequence number memory cell comprises receive window, the maximum quantity of the RLC piece that the big or small corresponding travelling carriage of described receive window can receive in a time slot, described receive window is divided into a described maximum quantity element, the piece sequence number of a RLC piece of finishing to eat dishes without rice or wine to decipher of storage in each element.
12. memory management device according to claim 7 is characterized in that, described internal memory comprises: the incremental redundancy internal memory in the enhancing property general wireless packet service system.
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| CN201010104403A CN101795184A (en) | 2010-01-27 | 2010-01-27 | Memory management method and device |
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| CN201010104403A CN101795184A (en) | 2010-01-27 | 2010-01-27 | Memory management method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103404101A (en) * | 2012-12-31 | 2013-11-20 | 华为技术有限公司 | Decoding method and device |
| WO2016197390A1 (en) * | 2015-06-12 | 2016-12-15 | 华为技术有限公司 | Method, apparatus and system for channel decoding |
-
2010
- 2010-01-27 CN CN201010104403A patent/CN101795184A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103404101A (en) * | 2012-12-31 | 2013-11-20 | 华为技术有限公司 | Decoding method and device |
| WO2014101214A1 (en) * | 2012-12-31 | 2014-07-03 | 华为技术有限公司 | Decoding method and device |
| CN103404101B (en) * | 2012-12-31 | 2015-11-25 | 华为技术有限公司 | The method and apparatus of decoding |
| WO2016197390A1 (en) * | 2015-06-12 | 2016-12-15 | 华为技术有限公司 | Method, apparatus and system for channel decoding |
| US10284331B2 (en) | 2015-06-12 | 2019-05-07 | Huawei Technologies Co., Ltd. | Channel decoding method, apparatus, and system |
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Application publication date: 20100804 |