CN101384072A - Method for enhancing transmission rate of high speed downlink packet access service - Google Patents
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Abstract
The invention discloses a method for enhancing the transmission rate of a high-speed downlink packet access service, which comprises the following steps: (1) high-speed physical downlink shared channel HS-DSCH physical layer classes corresponding to a high level method is arranged, each class is provided with corresponding physical channel ability, and transmission block size corresponding to the HS-DSCH physical layer classes is arranged and is provided with index; (2) user equipment sends physical channel ability information to NodeB, and the information comprises ability index which is corresponding to the physical channel ability; (3) the NodeB gains the physical channel ability according to the ability index after receiving the channel ability information, chooses corresponding transmission block size according to gained physical channel ability and marks index corresponding to the transmission block size in the high-speed shared control channel HS-SCCH. The invention can enhance the transmission rate of the high-speed down packet access service.
Description
Technical field
The present invention relates to moving communicating field, specifically, relate to a kind of raising 3G (Third Generation) Moblie high speed downlink grouped and insert (High Speed Downlink Packet Access, the HSDPA) method of service transmission rate.
Background technology
For satisfy increase rapidly to the high-speed mobile data service, the demand of particularly mobile internet business, 3GPP (3rd Generation Partnership Project, third generation partner program) introduced HSDPA in standard, the traffic carrying capacity that adapts to its down link is generally greater than the characteristics of uplink traffic.
In the HSDPA of TD-SCDMA system technology, the new physical channel of introducing comprises: HS-PDSCH (High Speed Physical Downlink Shared Channel, high speed down sharing physical channel), HS-SCCH (Shared Control Channel for HS-DSCH, High-Speed Shared Control Channel) and HS-SICH (Shared Information Channel for HS-DSCH, high-speed shared indication channel).Wherein, HS-PDSCH is used for carrying user's business datum, HS-SCCH is used for carrying subscriber equipment, and (User Equipment UE) receives the relevant control information of HS-PDSCH channel, and HS-SICH is used for the quality of reception of UE to Node B (Node B) feedback HS-PDSCH channel.Each bar HS-SCCH channel is fixing corresponding one by one with a HS-SICH channel, and a pair of HS-SCCH, HS-SICH must belong to same carrier frequency.Can there be a plurality of carrier frequency a sub-district, and can set up the HSDPA business on each carrier frequency.UE can receive the HSDPA business simultaneously according to the ability of oneself on one or more carrier frequency.Because HS-PDSCH is a shared physical channel, the HS-PDSCH on carrier frequency is by all use the user of HSDPA to share on this carrier frequency, and the physical channel traffic control between UE is all finished at NodeB.
Because the control channel HS-SCCH of newly-increased UE feedback channel HS-SICH and NodeB, UTRAN (Universal Terrestril Radio Access Network, the universal land radio access web road) can be according to concrete channel quality, change each TTI (Transmission TimingInterval in real time, Transmission Time Interval) parameter such as Nei modulation system and TBSize (Transport Block Sizes, transmission block size) index.DPCH (Dedicated PhysicalChannel with respect to general nothing feedback, DPCH) channel and RNC (Radio Network Controller, radio network controller) to its comparatively fixing unlimited resources distribution mechanism, HS-PDSCH has the potentiality that adopt high-order modulating under the condition of better air traffic channel quality.And the higher high-order modulating of efficient, will further improve the downlink transfer speed of HSDPA, be attracted to more high-end user and use the HSDPA business.Yet in the prior art, do not provide the method that high-order modulating 64QAM (Quadrature Amplitude Modulation, quadrature amplitude modulation) is applied in HS-PDSCH.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method that improves transmission rate of high speed downlink packet access service, make that high-order modulating is able to realize in high speed down sharing physical channel HS-PDSCH, thereby improve the transmission rate of high speed downlink grouping access business.
In order to solve the problems of the technologies described above, the invention provides a kind of method that improves transmission rate of high speed downlink packet access service, said method comprising the steps of:
(1) is provided with and the classification of the corresponding high speed down sharing physical channel HS-DSCH of high-order modulating physical layer, and to every kind of corresponding physical channel ability of classification setting, and setting and the described HS-DSCH physical layer corresponding transmission block size of classifying, described transmission block size is provided with index;
(2) subscriber equipment sends the physical channel ability information to node NodeB, comprises the ability index in the described information, and described ability index is corresponding with described physical channel ability;
(3) after NodeB receives described channel capacity information, obtain the physical channel ability according to described ability index, and according to the corresponding transmission block size of physical channel ability selection that obtains, and in high-speed shared control channel HS-SCCH, identify and the big or small corresponding index of described transmission block.
Further, with the classification of the corresponding high speed down sharing physical channel HS-DSCH of high-order modulating physical layer, comprise classification 16～24 described in the step (1).
Further, the physical channel ability comprises described in the step (1): each time slot HS-DSCH code channel number of configuration at most is 16; For classification 16～18, each Transmission Time Interval different HS-DSCH timeslot number of configuration at most is 3, and the maximum transmitted channel bit number under the hybrid automatic repeat request (HARQ) is 12546; For classification 19～21, each Transmission Time Interval different HS-DSCH timeslot number of configuration at most is 4, and the maximum transmitted channel bit number under the hybrid automatic repeat request (HARQ) is 16728; For classification 22～24, each Transmission Time Interval different HS-DSCH timeslot number of configuration at most is 5, and the maximum transmitted channel bit number under the hybrid automatic repeat request (HARQ) is 20910.
The present invention reports and transmission block size indicating means by the corresponding ability of high-order modulating is set, make high-order modulating in high speed down sharing physical channel HS-PDSCH, to realize, improved the transmission rate of TD-SCDMA system high speed down packet access service.
Description of drawings
Fig. 1 improves the method flow diagram of transmission rate of high speed downlink packet access service for the present invention.
Embodiment
The present invention is by being provided with the HS-DSCH classification of high-order modulating 64QAM correspondence in the TD-SCDMA system, and described classification corresponding physical channel capacity, and at setting of medium access control preparative layer and corresponding transmission block size (TBSize) index of described classification, and after described channel capacity reported NodeB by UE, select corresponding TBSize according to channel capacity by NodeB.Like this, high-order modulating can realize in high speed down sharing physical channel HS-PDSCH, thus the transmission rate of raising high speed downlink grouping access business.
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail:
With reference to shown in Figure 1, improve the method flow diagram of transmission rate of high speed downlink packet access service for the present invention.Described method comprises the steps:
Step 101: be provided with and the classification of the corresponding high speed down sharing physical channel HS-DSCH of high-order modulating physical layer, and to every kind of corresponding physical channel ability of classification setting, and setting and the HS-DSCH physical layer corresponding transmission block size of classifying, described transmission block size is provided with index;
Step 102: subscriber equipment sends the physical channel ability information to node NodeB, comprises the ability index in the described information, and described ability index is corresponding with described physical channel ability;
After step 103:NodeB receives described channel capacity information, obtain the physical channel ability according to described ability index, and according to the corresponding transmission block size of physical channel ability selection that obtains, and in high-speed shared control channel HS-SCCH, identify transport block size index.
Come technical solution of the present invention is carried out exemplary explanation below by the example in the concrete application.
In 1.28Mpcs TDD system, concrete physical channel has common sign such as frequency, time slot and spreading code.At specific physical code channel, in the physical channel ability information that NodeB reports, indicate the ability index at UE with field HS-DSCH physical layer category (classification of HS-DSCH physical layer), as shown in table 1.The concrete physical channel ability content of this index correspondence has detailed explanation in 3GPP 25.306, shown in table 2 classification 1～classification 15.
The present invention increases HS-DSCH physical layer classification 16 to 24 in table 2, the corresponding high order modulation 64QAM of difference, the physical channel ability specifically comprises: dispose code channel number (Maximumnumber of HS-DSCH codes per timeslot) at most at each time slot, the present invention is 16 HS-DSCH code channels; Each Transmission Time Interval is the different HS-DSCH time slot (Maximum number ofHS-DSCH timeslots per TTI) of configuration at most, corresponding to the maximum transmitted channel bit number under the different hybrid automatic repeat request (HARQ)s (Maximum number of HS-DSCH transport channel bits that canbe received within an HS-DSCH TTI) and total soft channel bit number (Total number ofsoft channel bits).HS-DSCH physical layer classification 1 to 3 is only applicable to the QPSK modulation system in the table 2, and classification 4 to 6 is applicable to QPSK and 16QAM, and classification 7 to 24 is applicable to QPSK, 16QAM and 64QAM.
Table 1: physical channel ability
| Information Element/Group name (information unit) | Need | Multi | Type and Reference | Semantics description | Version |
| Information Element/Group name (information unit) | Need | Multi | Type and Reference | Semantics description | Version |
| Downlink physical channel capability information elements (down physical channel ability information unit) | |||||
| ... | |||||
| 1.28 Mcps TDD downlink physical channel capability (1.28Mcps TDD down physical channel ability) | CH-1.28 Mcps_tdd _req_sup | REL-4 | |||
| ...... | |||||
| CHOICE Support of HS-PDSCH (whether supporting high-speed physical downlink shared channel (HS-PDSCH)) | CV-not_i RAT_HoIn fo | REL-5 | |||
| Supported (support) | REL-5 | ||||
| HS-DSCH physical layer category (classification of high speed descending sharing channel physical layer) | MP | Integer (1..64) | As defined in [35].See Note 2. See Note 3. | REL-5 | |
| ... |
The classification of the table 2:1.28Mpcs TDD HS-DSCH of system physical layer
| HS-DSCH category (high speed descending sharing channel classification) | Maximum number of HS-DSCH codes per timeslot (the high speed descending sharing channel number of each time slot maximum) | Maximum number of HS-DSCH timeslots per TTI (number of maximum high speed descending sharing channel time slot in each Transmission Time Interval) | Maximum number of HS-DSCH transport channel bits that can be received within an HS-DSCH TTI (the maximum high speed descending sharing channel transmission channel bit number that can receive in high speed descending sharing channel Transmission Time Interval) | Total number of soft channel bits (total soft channel bit number) |
| Category 1 | 16 | 2 | 2788 | 11264 |
| Category 2 | 16 | 2 | 2788 | 22528 |
| Category 3 | 16 | 2 | 2788 | 33792 |
| Category 4 | 16 | 2 | 5600 | 22528 |
| Category 5 | 16 | 2 | 5600 | 45056 |
| Category 6 | 16 | 2 | 5600 | 67584 |
| Category 7 | 16 | 3 | 8416 | 33792 |
| Category 8 | 16 | 3 | 8416 | 67584 |
| Category 9 | 16 | 3 | 8416 | 101376 |
| Category 10 | 16 | 4 | 11226 | 45056 |
| Category 11 | 16 | 4 | 11226 | 90112 |
| Category 12 | 16 | 4 | 11226 | 135168 |
| Category 13 | 16 | 5 | 14043 | 56320 |
| HS-DSCH category (high speed descending sharing channel classification) | Maximum number of HS-DSCH codes per timeslot (the high speed descending sharing channel number of each time slot maximum) | Maximum number of HS-DSCH timeslots per TTI (number of maximum high speed descending sharing channel time slot in each Transmission Time Interval) | Maximum number of HS-DSCH transport channel bits that can be received within an HS-DSCH TTI (the maximum high speed descending sharing channel transmission channel bit number that can receive in high speed descending sharing channel Transmission Time Interval) | Total number of soft channel bits (total soft channel bit number) |
| Category 14 | 16 | 5 | 14043 | 112640 |
| Category 15 | 16 | 5 | 14043 | 168960 |
| Category 16 | 16 | 3 | 12546 | 50688 |
| Category 17 | 16 | 3 | 12546 | 101376 |
| Category 18 | 16 | 3 | 12546 | 152064 |
| Category 19 | 16 | 4 | 16728 | 67584 |
| Category 20 | 16 | 4 | 16728 | 135168 |
| Category 21 | 16 | 4 | 16728 | 202752 |
| Category 22 | 16 | 5 | 20910 | 84480 |
| Category 23 | 16 | 5 | 20910 | 168960 |
| Category 24 | 16 | 5 | 20910 | 253440 |
The physical channel ability that NodeB reports according to UE with 6 bit number sign TBSize index, is notified the current HS-DSCH of UE employed modulation system in the HS-SCCH control channel.In 3GPP 25.321 agreements, increase the TBSize index content of high order modulation 64QAM HS-DSCH physical layer classification 16 to 24, shown in table 3, table 4, table 5, expressed the TBSize of 16 to 18 correspondences of classifying respectively, the TBSize of classification 19 to 21 correspondences, and the TBSize of classification 22 to 24 correspondences.
The TBSize of the table 3:1.28Mpcs TDD HS-DSCH of system physical layer classification 16 to 18 correspondences
| TB index(k) | TB size [bits] | TB index(k) | TB size [bits] | TB index(k) | TB size [bits] | TB index(k) | TB size [bits] |
| 0 | NULL | 16 | 625 | 32 | 1735 | 48 | 4818 |
| 1 | 240 | 17 | 666 | 33 | 1849 | 49 | 5135 |
| 2 | 256 | 18 | 710 | 34 | 1971 | 50 | 5474 |
| 3 | 273 | 19 | 757 | 35 | 2101 | 51 | 5834 |
| 4 | 291 | 20 | 806 | 36 | 2240 | 52 | 6219 |
| 5 | 309 | 21 | 860 | 37 | 2387 | 53 | 6629 |
| 6 | 330 | 22 | 917 | 38 | 2545 | 54 | 7066 |
| 7 | 352 | 23 | 977 | 39 | 2712 | 55 | 7531 |
| 8 | 375 | 24 | 1041 | 40 | 2891 | 56 | 8027 |
| 9 | 400 | 25 | 1110 | 41 | 3082 | 57 | 8556 |
| 10 | 426 | 26 | 1183 | 42 | 3285 | 58 | 9120 |
| 11 | 454 | 27 | 1261 | 43 | 3502 | 59 | 9721 |
| 12 | 484 | 28 | 1344 | 44 | 3732 | 60 | 10362 |
| 13 | 516 | 29 | 1432 | 45 | 3978 | 61 | 11044 |
| 14 | 550 | 30 | 1527 | 46 | 4240 | 62 | 11773 |
| 15 | 586 | 31 | 1627 | 47 | 4520 | 63 | 12546 |
The TBSize of the table 4:1.28Mpcs TDD HS-DSCH of system physical layer classification 19 to 21 correspondences
| TB index(k) | TB size [bits] | TB index(k) | TB size [bits] | TB index(k) | TB size [bits] | TB index(k) | TB size [bits] |
| 0 | NULL | 16 | 670 | 32 | 2003 | 48 | 5990 |
| 1 | 240 | 17 | 718 | 33 | 2145 | 49 | 6415 |
| 2 | 257 | 18 | 768 | 34 | 2297 | 50 | 6869 |
| 3 | 275 | 19 | 823 | 35 | 2460 | 51 | 7356 |
| 4 | 295 | 20 | 881 | 36 | 2635 | 52 | 7877 |
| 5 | 316 | 21 | 944 | 37 | 2821 | 53 | 8435 |
| 6 | 338 | 22 | 1010 | 38 | 3021 | 54 | 9033 |
| 7 | 362 | 23 | 1082 | 39 | 3235 | 55 | 9673 |
| 8 | 388 | 24 | 1159 | 40 | 3464 | 56 | 10358 |
| 9 | 415 | 25 | 1241 | 41 | 3710 | 57 | 11092 |
| 10 | 444 | 26 | 1329 | 42 | 3973 | 58 | 11878 |
| 11 | 476 | 27 | 1423 | 43 | 4254 | 59 | 12719 |
| 12 | 510 | 28 | 1524 | 44 | 4555 | 60 | 13620 |
| 13 | 546 | 29 | 1632 | 45 | 4878 | 61 | 14585 |
| 14 | 584 | 30 | 1747 | 46 | 5224 | 62 | 15619 |
| 15 | 626 | 31 | 1871 | 47 | 5594 | 63 | 16728 |
The TBSize of the table 5:1.28Mpcs TDD HS-DSCH of system physical layer classification 22 to 24 correspondences
| TB index(k) | TB size [bits] | TB index(k) | TB size [bits] | TB index (k) | TB size [bits] | TB index(k) | TB size [bits] |
| 0 | NULL | 16 | 705 | 32 | 2239 | 48 | 7091 |
| 1 | 240 | 17 | 758 | 33 | 2407 | 49 | 7620 |
| 2 | 258 | 18 | 814 | 34 | 2586 | 50 | 8190 |
| 3 | 276 | 19 | 875 | 35 | 2780 | 51 | 8802 |
| 4 | 297 | 20 | 940 | 36 | 2987 | 52 | 9459 |
| 5 | 319 | 21 | 1011 | 37 | 3210 | 53 | 10166 |
| 6 | 343 | 22 | 1086 | 38 | 3450 | 54 | 10925 |
| 7 | 369 | 23 | 1167 | 39 | 3708 | 55 | 11741 |
| 8 | 396 | 24 | 1258 | 40 | 3985 | 56 | 12619 |
| 9 | 426 | 25 | 1352 | 41 | 4283 | 57 | 13561 |
| 10 | 458 | 26 | 1453 | 42 | 4602 | 58 | 14574 |
| 11 | 492 | 27 | 1562 | 43 | 4946 | 59 | 15663 |
| 12 | 529 | 28 | 1679 | 44 | 5316 | 60 | 16833 |
| 13 | 568 | 29 | 1804 | 45 | 5713 | 61 | 18090 |
| 14 | 610 | 30 | 1939 | 46 | 6140 | 62 | 19442 |
| 15 | 656 | 31 | 2084 | 47 | 6598 | 63 | 20910 |
Certainly, above-mentioned embodiment is not the further qualification to technical solution of the present invention, and any those of ordinary skill in the art replaced or corresponding improvement the technology of the present invention feature being equal to of being done, still within protection scope of the present invention.
Claims (8)
1, a kind of method that improves transmission rate of high speed downlink packet access service is characterized in that, said method comprising the steps of:
(1) is provided with and the classification of the corresponding high speed down sharing physical channel HS-DSCH of high-order modulating physical layer, and to every kind of corresponding physical channel ability of classification setting, and setting and the described HS-DSCH physical layer corresponding transmission block size of classifying, described transmission block size is provided with index;
(2) subscriber equipment sends the physical channel ability information to node NodeB, comprises the ability index in the described information, and described ability index is corresponding with described physical channel ability;
(3) after NodeB receives described channel capacity information, obtain the physical channel ability according to described ability index, and according to the corresponding transmission block size of physical channel ability selection that obtains, and in high-speed shared control channel HS-SCCH, identify and the big or small corresponding index of described transmission block.
2, the method for claim 1 is characterized in that, with the classification of the corresponding high speed down sharing physical channel HS-DSCH of high-order modulating physical layer, comprises classification 16～24 described in the step (1).
3, method as claimed in claim 2, it is characterized in that, the physical channel ability comprises described in the step (1): each time slot disposes code channel number at most, each Transmission Time Interval is the different HS-DSCH time slot of configuration at most, corresponding to the maximum transmitted channel bit number under the different hybrid automatic repeat request (HARQ)s and total soft channel bit number.
4, method as claimed in claim 3 is characterized in that, described each time slot code channel number of configuration at most is 16 HS-DSCH code channels.
5, method as claimed in claim 3, it is characterized in that, for classification 16～18, each Transmission Time Interval different HS-DSCH timeslot number of configuration at most is 3, maximum transmitted channel bit number under the hybrid automatic repeat request (HARQ) is 12546, and total soft channel bit number is respectively 50688,101376,152064.
6, method as claimed in claim 3, it is characterized in that, for classification 19～21, each Transmission Time Interval different HS-DSCH timeslot number of configuration at most is 4, maximum transmitted channel bit number under the hybrid automatic repeat request (HARQ) is 16728, and total soft channel bit number is respectively 67584,135168,202752.
7, method as claimed in claim 3, it is characterized in that, for classification 22～24, each Transmission Time Interval different HS-DSCH timeslot number of configuration at most is 5, maximum transmitted channel bit number under the hybrid automatic repeat request (HARQ) is 20910, and total soft channel bit number is respectively 84480,168960,253440.。
8, the method for claim 1 is characterized in that, described high order modulation comprises 64 quadrature amplitude modulation.
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| WO2010139269A1 (en) * | 2009-06-02 | 2010-12-09 | Huawei Technologies Co., Ltd. | System and method for transport block size design for multiple-input, multiple-output (mimo) in a wireless communications system |
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| WO2012136101A1 (en) * | 2011-04-02 | 2012-10-11 | 中兴通讯股份有限公司 | Method, system, and device for handing hybrid automatic repeat request |
| CN102801509A (en) * | 2012-08-03 | 2012-11-28 | 大唐移动通信设备有限公司 | Method and device for pre-processing data retransmission in LTE (Long Term Evolution) system |
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| WO2010139269A1 (en) * | 2009-06-02 | 2010-12-09 | Huawei Technologies Co., Ltd. | System and method for transport block size design for multiple-input, multiple-output (mimo) in a wireless communications system |
| US8537750B2 (en) | 2009-06-02 | 2013-09-17 | Futurewei Technologies, Inc. | System and method for transport block size design for multiple-input, multiple-output (MIMO) in a wireless communications system |
| USRE46810E1 (en) | 2009-06-02 | 2018-04-24 | Futurewei Technologies, Inc. | System and method for transport block size design for multiple-input, multiple-output (MIMO) in a wireless communications system |
| WO2012119549A1 (en) * | 2011-03-09 | 2012-09-13 | 中兴通讯股份有限公司 | Method, device, and base station for transmitting data of hotspot cell coverage |
| US9210693B2 (en) | 2011-03-09 | 2015-12-08 | Zte Corporation | Method, device, and base station for transmitting data of hotspot cell coverage |
| WO2012136101A1 (en) * | 2011-04-02 | 2012-10-11 | 中兴通讯股份有限公司 | Method, system, and device for handing hybrid automatic repeat request |
| CN102801509A (en) * | 2012-08-03 | 2012-11-28 | 大唐移动通信设备有限公司 | Method and device for pre-processing data retransmission in LTE (Long Term Evolution) system |
| CN102801509B (en) * | 2012-08-03 | 2016-03-02 | 大唐移动通信设备有限公司 | The preprocess method of data re-transmission and device in a kind of LTE system |
| CN106797277A (en) * | 2014-10-08 | 2017-05-31 | 高通股份有限公司 | For the UE classifications treatment of soft cache management |
| CN106797277B (en) * | 2014-10-08 | 2020-05-26 | 高通股份有限公司 | UE class handling for soft buffer management |
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