CN1184760C - Data transmission control method of downgoing high speed shared channel in high speed data insertion system - Google Patents
Data transmission control method of downgoing high speed shared channel in high speed data insertion system Download PDFInfo
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- CN1184760C CN1184760C CNB011451440A CN01145144A CN1184760C CN 1184760 C CN1184760 C CN 1184760C CN B011451440 A CNB011451440 A CN B011451440A CN 01145144 A CN01145144 A CN 01145144A CN 1184760 C CN1184760 C CN 1184760C
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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
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The present invention discloses a data transmission control method of a descending high-speed shared channel of a high-speed data access system. In the method, control information for HS-DSCH demodulation and the verification information carried with UEID thereof are used as the first control information part of HS-SCCH at a base station end; the first control information part is sent in a first time slot in TTI of HS-SCCH. UE is judged whether to receive data on HS-DSCH in a certain transmission time interval by verifying the first control information part before the third time slot of HS-SCCH is started at the UE end, and the affiliated HS-SCCH of the control information corresponding to HS-DSCH is determined to further finish the data reception of HS-DSCH. The scheme does not need HI to carry out the indication of HS-DSCH, and therefore, the present invention can save the HI transmitting power of the existing methods, avoids mutual interference among HI and interference to other code channels, and ensures the performance of descending links.
Description
Technical field
The present invention relates to the data transfer control method in the wireless communication system, relate to the data transfer control method of high-speed data access system down high speed sharing channel specifically.
Background technology
In the high-speed data access system of Wideband Code Division Multiple Access (WCDMA) (WCDMA), down channel generally includes 3 types: down high speed sharing channel (HS-DSCH) is used to carry high-speed data service; Descending shared control signal channel (HS-SCCH) is used to carry the required control information of reception HS-DSCH, as code channel information, modulation coding mode, HARQ information etc.; Down high speed is shared indicating channel (HI), and whether be used to indicate on the inherent HS-DSCH of certain Transmission Time Interval of UE has data to need to receive, and the HS-DSCH control information corresponding is carried on which HS-SCCH.
According to the data transfer control method of existing down high speed sharing channel, HS-DSCH can corresponding maximum 4 HS-SCCH channels, that is to say that the base station can select one to carry the HS-DSCH control information in 4 HS-SCCH arbitrarily.HS-SCCH is a Transmission Time Interval (TTI) with 3 time slots, and each time slot transmits 40 bits.The TTI of HS-SCCH can be divided into two parts: part 1 (Part1) is first time slot, transmission be the required control information of HS-DSCH despreading/demodulation, comprise spreading code, order of modulation; Part 2 (Part2) is the 2nd, 3 time slots, transmits the HARQ relevant information, comprises information such as transport block set size, transmission channel sign, HARQ process number, redundancy versions.Wherein, the informational needs of Part1 solves at first, is used for HS-DSCH is carried out demodulation.Informational needs among the HS-SCCH uses CRC check, and user ID (UEID) information has been carried in CRC check position wherein.UE is by CRC check, and whether the data among the affirmation HS-SCCH transmit correctly, whether its UEID conforms to this UE.
HI comprises 2 bits, can distinguish corresponding 4 HS-SCCH.HI go up to transmit in downlink dedicated channels (DPCH), is by a subchannel to DPCH specifically, after Dedicated Physical Data Channel (DPDCH) punching, is punctured on the position of punching and transmits.There is following drawback in this method: the one, concerning certain UE,, then must rely on a dedicated channel if use HI.But system not necessarily considers high-speed data service when the assigned with dedicated channel related resource, therefore, transmits HI by DPDCH is punched, may be to the bigger influence of the professional generation of DPCH; The 2nd, because HI only is equivalent to a modulation symbol, both not free diversity does not have coding gain yet, be easy to be subjected to the interference of burst noise, therefore its error performance is difficult to be guaranteed, and in order to guarantee its error performance, has only the way by increasing transmitting power to compensate.Number of users in a sub-district can produce the phase mutual interference and to the interference of other code channels, can influence the performance of down link so more for a long time between the HI.
Summary of the invention
The object of the present invention is to provide a kind of data transfer control method that helps guaranteeing the high-speed data access system down high speed sharing channel of downgoing communication link performance, use this method between UE and base station, need not transmit HI information, the transmitting power of HI is saved in emission, avoids HI to disturb each other and to the interference of other code channels.
For achieving the above object, the data transfer control method of high-speed data access system down high speed sharing channel provided by the invention comprises:
At the base station end:
(1) data that will send to subscriber equipment (UE) operation of packing forms and sends packet;
(2) will be used for down high speed sharing channel (door HS-DSCH) control information of demodulation and the check information that carries user ID (UEID) of this control information as the control information of descending shared control signal channel (HS-SCCH) first, first's control information is encoded and rate adaptation operating, form the data of 40 bits first time slot in the transmission intercal (TTI) of HS-SCCH and send; The check information that will be used for HS-DSCH merging, decoding, the control information of feeding back and this information is as the control information of HS-SCCH second portion, control information is encoded and rate adaptation operating to second portion, and second and three time slot of data in the TTI of HS-SCCH that forms 80 bits sends;
(3) packet with step (1) sends by HS-DSCH;
Hold at UE:
(4) first's control information of reception n road HS-SCCH, wherein, n=1,2,3 or 4;
(5) before the 3rd time slot of the HS-SCCH that receives begins, the decoding of first's control information of n HS-SCCH in the completing steps (4), and carry out verification, if there is first's control information verification of one road HS-SCCH correct, continue to receive the second portion control information of the correct HS-SCCH of first's control information verification, abandon the incorrect HS-SCCH of first's control information verification, change step (6), otherwise finish this Data Receiving operation;
(6) after the 3rd time slot of the HS-SCCH that receives begins, the packet on the HS-DSCH arrives, and UE receives operation according to first's control information of the correct HS-SCCH of first's control information verification to the packet on the HS-DSCH;
(7) the 3rd time slot at the HS-SCCH that receives finishes, UE carries out verification to the second portion control information of the correct HS-SCCH of first's control information verification, if verification is correct, continue to receive the packet on the HS-DSCH, otherwise abandon the reception of the packet on the HS-DSCH, finish this Data Receiving operation.
Described check information is a CRC check information.
Because the present invention will be used for the check information that carries UEID of the control information of HS-DSCH demodulation and this control information as the control information of HS-SCCH first, first time slot in the TTI of HS-SCCH sends, before UE can begin at the 3rd time slot of HS-SCCH like this, by verification to the control information of above-mentioned first, whether can judge UE has data to need to receive in certain Transmission Time Interval on HS-DSCH, and the HS-SCCH at definite HS-DSCH control information corresponding place, thereby finish the Data Receiving of HS-DSCH, no longer need HI to carry out the indication of HS-DSCH, therefore the present invention compares with existing method, between UE and base station, need not transmit HI information, therefore can save the transmitting power of the HI of existing method, avoid HI to disturb each other and to the interference of other code channels, guaranteed the downgoing communication link performance, whole system is maintained on the higher performance level.
Description of drawings
Fig. 1 is the embodiment flow chart of the inventive method;
Fig. 2 is the timing diagram of HI, HS-SCCH and HS-DSCH;
Fig. 3 is the coded system figure of base station end HS-SCCH of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
In high-speed data access system, the sequential relationship of HI, HS-SCCH and HS-DSCH is with reference to figure 2.Above-mentioned three channels are benchmark with the HS-SCCH zero-time, and HI sends when first time slot begins, send when second time slot begins at the latest.HS-DSCH and HS-SCCH time migration are (2+m*0.1) individual time slot, wherein, and m 〉=0.
The present invention is based on the sequential relationship of above-mentioned channel, its essence is and in first's control information of HS-SCCH, add the check code that carries the UEID sign, like this, before UE can begin at the 3rd time slot of HS-SCCH, by verification to the control information of above-mentioned first, whether can judge UE has data to need to receive in certain Transmission Time Interval on HS-DSCH, and the HS-SCCH at definite HS-DSCH control information corresponding place, thereby finish the Data Receiving of HS-DSCH, no longer need HI to carry out the indication of HS-DSCH.
Embodiments of the invention are with reference to figure 1.According to Fig. 1, the method for the invention comprises two parts, and a part is by data sending terminal, and promptly the base station end carries out, and is used to finish the operations such as coding, modulation of business datum and control information; Another part is by data receiver, and promptly the UE end carries out, and finishes the reception of control information and business datum.At first carry out step 1,, form and send packet the data that the send to UE operation of packing at the base station end.Because above-mentioned packets need passes under the HS-DSCH channel, therefore will be used for of the control information of the check information that carries user ID (UEID) of the control information of HS-DSCH demodulation and this control information in step 2 as HS-SCCH first, first's control information is encoded and rate adaptation operating, and data first time slot in the TTI of HS-SCCH that forms 40 bits sends; Simultaneously will be used for the check information of the control information of HS-DSCH merging, decoding, feedback etc. and this information as the control information of HS-SCCH second portion in step 3, control information is encoded and rate adaptation operating to second portion, and second and three time slot of data in the TTI of HS-SCCH that forms 80 bits sends.When aforesaid operations carried out, in step 3, the packet that step 1 is formed passed through HS-DSCH, and the 3rd time slot in the TTI of HS-SCCH begins later time slot and send.
Hold at UE, carry out step 4, UE is according to different environment, receive first's control information of maximum 4 HS-SCCH simultaneously, then in step 5, before the 3rd time slot of the HS-SCCH that receives begins, the decoding of first's control information of all HS-SCCH that receive in the completing steps 4, and carry out verification, judge in step 6 then, if there is first's control information verification of one road HS-SCCH correct, illustrate that this HS-SCCH belongs to this UE, therefore the data that have this UE to receive on HS-DSCH carry out the second portion control information that step 7 continues to receive the correct HS-SCCH of first's control information verification, abandon incorrect other HS-SCCH of first's control information verification, change step 8 then; Otherwise the HS-SCCH that does not belong to this UE is described, does not promptly belong to the data that this UE need receive, therefore finish this Data Receiving operation.
Step 8, after the 3rd time slot of the HS-SCCH that receives began, the packet on the HS-DSCH arrived, and UE receives operation according to first's control information of the correct HS-SCCH of first's control information verification to the packet on the HS-DSCH.At this moment, the reception of the second portion control information of the HS-SCCH that the control information verification of completing steps 7 firsts is correct, therefore in step 9, the 3rd time slot at the HS-SCCH that receives finishes, UE carries out verification to the second portion control information of the correct HS-SCCH of first's control information verification, judges in step 10 whether this verification is correct then, if verification is correct, utilize the packet on this part 2 control information continuation reception HS-DSCH, finish up to Data Receiving; Otherwise abandon the reception of the packet on the HS-DSCH, finish this Data Receiving operation.
Claims (2)
1, a kind of data transfer control method of high-speed data access system down high speed sharing channel comprises:
At the base station end:
(1) data that will send to subscriber equipment (UE) operation of packing forms and sends packet;
(2) will be used for the check information that carries user ID (UEID) of the control information of down high speed sharing channel (HS-DSCH) demodulation and this control information as the control information of descending shared control signal channel (HS-SCCH) first, first's control information is encoded and rate adaptation operating, form the data of 40 bits first time slot in the transmission intercal (TTI) of HS-SCCH and send; The check information that will be used for HS-DSCH merging, decoding, the control information of feeding back and this information is as the control information of HS-SCCH second portion, control information is encoded and rate adaptation operating to second portion, and second and three time slot of data in the TTI of HS-SCCH that forms 80 bits sends;
(3) packet with step (1) sends by HS-DSCH;
Hold at UE:
(4) first's control information of reception n road HS-SCCH, wherein, n=1,2,3 or 4;
(5) before the 3rd time slot of the HS-SCCH that receives begins, the decoding of first's control information of n HS-SCCH in the completing steps (4), and carry out verification, if there is first's control information verification of one road HS-SCCH correct, continue to receive the second portion control information of the correct HS-SCCH of first's control information verification, abandon the incorrect HS-SCCH of first's control information verification, change step (6), otherwise finish this Data Receiving operation;
(6) after the 3rd time slot of the HS-SCCH that receives begins, the packet on the HS-DSCH arrives, and UE receives operation according to first's control information of the correct HS-SCCH of first's control information verification to the packet on the HS-DSCH;
(7) the 3rd time slot at the HS-SCCH that receives finishes, UE carries out verification to the second portion control information of the correct HS-SCCH of first's control information verification, if verification is correct, continue to receive the packet on the HS-DSCH, otherwise abandon the reception of the packet on the HS-DSCH, finish this Data Receiving operation.
2, the data transfer control method of high-speed data access system down high speed sharing channel according to claim 1 is characterized in that: described check information is a CRC check information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011451440A CN1184760C (en) | 2001-12-30 | 2001-12-30 | Data transmission control method of downgoing high speed shared channel in high speed data insertion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011451440A CN1184760C (en) | 2001-12-30 | 2001-12-30 | Data transmission control method of downgoing high speed shared channel in high speed data insertion system |
Publications (2)
| Publication Number | Publication Date |
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| CN1430361A CN1430361A (en) | 2003-07-16 |
| CN1184760C true CN1184760C (en) | 2005-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB011451440A Expired - Fee Related CN1184760C (en) | 2001-12-30 | 2001-12-30 | Data transmission control method of downgoing high speed shared channel in high speed data insertion system |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10345638A1 (en) * | 2003-09-29 | 2005-06-02 | Siemens Ag | Method for data transmission |
| US7406070B2 (en) * | 2003-10-09 | 2008-07-29 | Telefonaktiebolaget L M Ericsson (Publ) | Adaptive threshold for HS-SCCH part 1 decoding |
| CN1972170B (en) * | 2005-11-22 | 2010-05-05 | 上海明波通信技术有限公司 | Wireless communication channel detection method |
| CN101026412B (en) * | 2007-03-13 | 2010-05-19 | 中兴通讯股份有限公司 | HS-SCCH channel coding device for high speed downlink packet access |
| CN101282280B (en) * | 2007-04-05 | 2010-12-29 | 大唐移动通信设备有限公司 | Method for transmitting control information on high speed share control channel |
| CN101426229B (en) * | 2007-11-01 | 2010-08-25 | 大唐移动通信设备有限公司 | Method for double flow transmission, apparatus and system therefor |
| CN101500259B (en) * | 2008-01-30 | 2010-09-22 | 大唐移动通信设备有限公司 | Method, system and apparatus for retransmitting data on high speed shared data channel |
| CN101252371B (en) * | 2008-04-14 | 2010-12-15 | 北京天碁科技有限公司 | Decoding method of high speed sharing control channel |
| CN101568183B (en) * | 2008-04-24 | 2011-04-13 | 大唐移动通信设备有限公司 | Method, system and device for allocating resources of HSDPA system |
| CN101616371B (en) * | 2008-06-25 | 2011-12-21 | 华为技术有限公司 | Communication method adopting channelized code, system and device |
| CN101895993B (en) * | 2009-05-21 | 2014-12-10 | 中兴通讯股份有限公司 | Channel multiplexing and mapping method and device |
| CN101998653B (en) * | 2009-08-11 | 2013-07-31 | 电信科学技术研究院 | Method, equipment and system for determining resource positions |
| CN102790669B (en) * | 2011-05-19 | 2016-06-29 | 中国移动通信集团公司 | A kind of control information transferring method and device thereof |
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2001
- 2001-12-30 CN CNB011451440A patent/CN1184760C/en not_active Expired - Fee Related
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| CN1430361A (en) | 2003-07-16 |
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