CN101384072B - Method for enhancing transmission rate of high speed downlink packet access service - Google Patents

Method for enhancing transmission rate of high speed downlink packet access service Download PDF

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CN101384072B
CN101384072B CN2007101458873A CN200710145887A CN101384072B CN 101384072 B CN101384072 B CN 101384072B CN 2007101458873 A CN2007101458873 A CN 2007101458873A CN 200710145887 A CN200710145887 A CN 200710145887A CN 101384072 B CN101384072 B CN 101384072B
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dsch
index
classification
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CN101384072A (en
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赵静
马志锋
刘轶
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ZTE Corp
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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

A kind of method that improves transmission rate of high speed downlink packet access service
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; Particularly move the professional demand of internet; 3GPP (3rd Generation Partnership Project; Third generation partner program) in standard, introduced HSDPA, 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 accomplished 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 parameters such as interior modulation system of each TTI (Transmission TimingInterval, Transmission Time Interval) and TBSize (Transport Block Sizes, transmission block size) index in real time.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, with the downlink transfer speed that further improves HSDPA, be attracted to more high-end user and use HSDPA professional.Yet in the prior art, the method that high-order modulating 64QAM (Quadrature Amplitude Modulation, quadrature amplitude modulation) is applied in HS-PDSCH is not provided.
Summary of the invention
The technical problem that the present invention will solve 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 in high speed down sharing physical channel HS-PDSCH, realize, 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 said HS-DSCH physical layer corresponding transmission block size of classifying, said 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 said information, and said ability index is corresponding with said physical channel ability;
(3) after NodeB receives said channel capacity information; Obtain the physical channel ability according to said ability index; And the transmission block size corresponding, and in high-speed shared control channel HS-SCCH, identify and the big or small corresponding index of said transmission block according to the physical channel ability selection of acquisition.
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 through 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 through being provided with the corresponding HS-DSCH classification of high-order modulating 64QAM in the TD-SCDMA system; And said classification corresponding physical channel capacity; And at the setting of medium access control preparative layer and corresponding transmission block size (TBSize) index of said classification; And after said channel capacity reported NodeB through 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.Said 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, said 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 said information, and said ability index is corresponding with said physical channel ability;
After step 103:NodeB receives said channel capacity information; Obtain the physical channel ability according to said ability index; And the transmission block size corresponding, and in high-speed shared control channel HS-SCCH, identify transport block size index according to the physical channel ability selection that obtains.
Come technical scheme of the present invention is carried out exemplary explanation through the instance in the concrete application below.
In 1.28Mpcs TDD system, concrete physical channel has common sign such as frequency, time slot and spreading code.To the 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 that this index is corresponding 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)
...
1.28Mcps 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
The HS-DSCH physicallayer category of＞＞＞(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 that each time slot is 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)
Category1 16 2 2788 11264
Category2 16 2 2788 22528
Category3 16 2 2788 33792
Category4 16 2 5600 22528
Category5 16 2 5600 45056
Category6 16 2 5600 67584
Category7 16 3 8416 33792
Category8 16 3 8416 67584
Category9 16 3 8416 101376
Category10 16 4 11226 45056
Category11 16 4 11226 90112
Category12 16 4 11226 135168
Category13 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 that each time slot is 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 scheme of the present invention, any those of ordinary skill in the art to technical characterictic of the present invention do be equal to the replacement or corresponding improvement, still within protection scope of the present invention.

Claims (8)

1. a 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 said HS-DSCH physical layer corresponding transmission block size of classifying, said 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 said information, and said ability index is corresponding with said physical channel ability;
(3) after NodeB receives said channel capacity information; Obtain the physical channel ability according to said ability index; And the transmission block size corresponding, and in high-speed shared control channel HS-SCCH, identify and the big or small corresponding index of said transmission block according to the physical channel ability selection of acquisition.
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, said 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, and the 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, and the 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, and the 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, said high order modulation comprises 64 quadrature amplitude modulation.
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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
CN102684816A (en) 2011-03-09 2012-09-19 中兴通讯股份有限公司 Hot-cell coverage data transmission method, device and base station
CN102739376B (en) * 2011-04-02 2018-11-16 中兴通讯股份有限公司 The processing method and system of a kind of mixed automatic retransfer and a kind of terminal
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
US9860888B2 (en) * 2014-10-08 2018-01-02 Qualcomm Incorporated UE category handling

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