CN101500308A - HSDPA medium and high order modulated downlink signaling transmission method for TD-SCDMA system - Google Patents
HSDPA medium and high order modulated downlink signaling transmission method for TD-SCDMA system Download PDFInfo
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- CN101500308A CN101500308A CNA2008100333521A CN200810033352A CN101500308A CN 101500308 A CN101500308 A CN 101500308A CN A2008100333521 A CNA2008100333521 A CN A2008100333521A CN 200810033352 A CN200810033352 A CN 200810033352A CN 101500308 A CN101500308 A CN 101500308A
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Abstract
The invention discloses a transmission method of high-level modulation signaling in an HSDPA (High Speed Downlink Packet Access) of a TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system, which overcomes the defect that the high-level modulation mode can not be indicated in the existing communications system. The technical proposal of the invention is as follows: (1) the indication information for the size of a transmission block of a downlink control channel and an uplink control channel is compressed into 5 bits, and the remaining 1 bit and 1 bit of the modulation mode indication information are combined for indicating the high-level modulation mode; (2) a terminal receives the information of the downlink control channel and indicates the resource allocation condition transmitted by the next high-speed downlink shared channel; (3) the channel is measured by the terminal; (4) according to the resource allocation condition of high-speed downlink shared channel and the result of channel measurement, the proper size of the transmission block and the high-level modulation mode are chosen to generate channel quality indication,; (5) the channel quality indication is reported to the base station on the corresponding uplink control channel; and (6) the base station sends the control message which includes the high-level modulation mode to the terminal by the downlink control channel. The invention is applicable to the technical field of mobile communication.
Description
Technical field
The present invention relates to signal transmission method, relate in particular to the high order modulation method for transmitting signaling of utilizing compress mode in the high speed downlink packet access (HSDPA, High Speed Downlink Packet Access).
Background technology
Along with increasing of mobile multi-media service, the transmission rate of 3-G (Generation Three mobile communication system) 2Mb/s can not meet the demands, and the mobile communication system that development has bigger capacity and bigger Bit Transmission Rate becomes inevitable.Therefore, WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)), CDMA2000 and TD-SCDMA (Time Division-Synchronous CodeDivision Multiple Access, TD SDMA) all carrying out the technology enhancing, to develop higher service rate, more B3G are provided the applied business of (back three generations's mobile communication).In the 3GPP standard, the HSDPA (High Speed Downlink Packet Access, high speed downlink packet inserts) of WCDMA and TD-SCDMA has been proposed to be applicable to based on the UMTS standard.In the 3GPP2 of another standardization body, similar techniques is also arranged, they are CDMA20001X EV-DO and EV-DV.
HSDPA is a kind of enhanced scheme that 3GPP Release 5 proposes, and main purpose is the high speed support to Packet data service, and obtains lower time delay, higher throughput of system and stronger QoS and guarantee.From technical standpoint, HSDPA strengthens air interface by introducing high speed descending sharing channel (HS-DSCH), and strengthens corresponding functional entity in UTRAN.From bottom, mainly be that introducing Adaptive Modulation and Coding (AMC) and H-ARQ (hybrid ARQ) technology increase data throughout.
The H-ARQ system introduces a FEC subsystem in the ARQ system, be used for correcting the error pattern of frequent appearance to reduce number of retransmissions, promptly in the error correcting capability scope, automatically correct a mistake, exceed the error correction scope and then require transmitting terminal to resend data, this has increased the reliability and the efficiency of transmission of system.That is to say that the channel condition that H-ARQ can adapt to moment automatically provides trickle data rate adjustment, select a suitable modulation and coded system then to obtain according to the channel condition that terminal (UE) is measured or network terminal determines by AMC.AMC according to the change of channel quality condition, adjusts modulation and coded system in the scope of system constraint.In an AMC system, the user who sits pretty (normally those users very near apart from the base station) can be endowed higher modulation and coded system (such as 16QAM and 1/2Turbo encoding rate); And be in user's (normally those are in the user of cell boarder) of unfavorable position, can be endowed lower modulation and coded system (such as QPSK and 1/2Turbo encoding rate).
The high speed business carrying of HSDPA mainly is to realize transmission by high speed descending sharing channel (HS-DSCH), it is the dedicated channel of a HSDPA, and the control information of all relevant bottoms is then shared information channel (HS-SICH) and descending HS-DSCH shared control channel (HS-SCCH) carrying by up HS-DSCH.HS-SCCH is the down control channel of HSDPA special use, is a physical channel, the control information that is used to carry all relevant bottoms.That is to say that terminal receives the data of HS-DSCH and must just can finish under the cooperation of HS-SCCH control information.HS-SCCH is shared by the UE of all HSDPA transfer of data, but to single HS-DSCH Transmission Time Interval (TTI), each HS-SCCH only is a relevant descending control signaling of UE carrying HS-DSCH.
The signaling of HS-SCCH carrying is: spreading code set information (8 bit) x
Ccs, 1, x
Ccs, 2..., x
Ccs, 8Gap information (5 bit) x
Ts, 1, x
Ts, 2..., x
Ts, 5Modulation system information (1 bit) x
Ms, 1Transport block size information (6 bit) x
Tbs, 1, x
Tbs, 2..., x
Tbs, 6Hybrid automatic repeat request process information (3 bit) x
Hap, 1, x
Hap, 2..., x
Hap, 3Redundancy version information (3 bit) x
Rv, 1, x
Rv, 2, x
Rv, 3New data indication (1 bit) x
Nd, 1HS-SCCH cyclic sequence number (3 bit) x
Hcsn, 1, x
Hcsn, 2, x
Hcsn, 3UE identification number (16 bit) x
Ue, 1, x
Ue, 2..., x
Ue, 16
The HS-SICH channel is the ascending control channel of HSDPA special use, it also is a physical channel, be used to feed back relevant uplink information, transmit the ACK/NACK signaling that is used to support H-ARQ to base station (Node B), it also transmits the channel quality indication (CQI) that is used for link circuit self-adapting simultaneously.CQI is used to indicate current quality of channel, comprises recommending the transmission block size and recommending modulation system, the NodeB transformat that decision sends next time according to CQI.
The signaling of HS-SICH carrying has: recommend modulation system (RMF) (1 bit) x
Rmf, 1Recommend transmission block size (RTBS) (6 bit) x
Rtbs, 1, x
Rtbs, 2..., x
Rtbs, 6Mix automatic repeat requests confirmation ACK/NACK (1 bit) x
An, 1From the above, the HSDPA technology of existing TD-SCDMA system has only adopted QPSK and two kinds of modulation systems of 16QAM, so only used a bit to indicate modulation system in HS-SCCH and HS-SICH.
In the AMC system, the base station remains unchanged for each user's transmitted power, for position user preferably, channel condition is good, and system can provide the data service of two-forty to it, increase overall system throughput, and at utmost strengthen the transmittability of Packet data service, improve power system capacity, need to introduce higher code rate and more high-order modulating (as 32QAM, 64QAM, 256QAM).
At present in the standard, the HSDPA technology of TD-SCDMA system is only supported two kinds of modulation system QPSK (Quadrature Phase Shift Keying) and 16QAM (16 rank quadrature amplitude modulation), corresponding modulation system indication information also has only 1 bit, can't support that more high-order modulating is (as 32QAM, 64QAM, HSDPA 256QAM).
Summary of the invention
The objective of the invention is to address the above problem, high order modulation method for transmitting signaling in a kind of TD-SCDMA system HSDPA is provided, overcome the problem that to indicate the high-order debud mode in the existing communication system.
Technical scheme of the present invention is: the present invention has disclosed high order modulation signal transmission method in a kind of TD-SCDMA system HSDPA, comprising:
(1) with the size of the transmission block in down control channel and ascending control channel indication information boil down to 5 bits, 1 bit combination of remaining 1 bit and modulation system indication information is together in order to the indication high-order modulating;
(2) terminal receives the message of this down control channel, indicates the resource allocation conditions of next high speed descending sharing channel transmission;
(3) terminal is carried out channel measurement;
(4) according to the high speed descending sharing channel resource allocation conditions of step (2) and the channel measurement result of step (3), terminal is selected suitable transmission block size and high-order modulating, produces the channel quality indication;
(5) this channel quality indication that produces reports to the base station at corresponding this ascending control channel;
(6) the base station control information that will contain high-order modulating sends to terminal by this down control channel.
High order modulation signal transmission method in the above-mentioned TD-SCDMA system HSDPA, wherein, step (2) comprising:
(2.a) terminal receives the message of this down control channel;
(2.b) message of this down control channel is separated physical process and handle, transmission block size indication information and modulation system indication information are resolved in the control information of extracting this high speed descending sharing channel, obtain the High Speed Modulation mode of this high speed descending sharing channel.
High order modulation signal transmission method in the above-mentioned TD-SCDMA system HSDPA, wherein, step (3) comprising:
(3.a) terminal receives this high speed descending sharing channel according to the control information of this down control channel on the time interval of distributing;
(3.b) terminal is carried out channel measurement to the data of this high speed descending sharing channel;
(3.c) terminal is carried out demodulation according to the transmission block size indication information and the modulation system indication information of this down control channel to the data on this high speed descending sharing channel.
High order modulation signal transmission method in the above-mentioned TD-SCDMA system HSDPA, wherein, this channel quality indication of step (4) comprises to be recommended modulation system and recommends the transmission block size.
High order modulation signal transmission method in the above-mentioned TD-SCDMA system HSDPA, wherein, step (5) comprising:
Recommend one of them bit of modulation system to repeat 16 times this of 2 bits, another bit and this recommend 5 bits of transmission block size to form 6 new bits, carry out Reed-Muller (32,6) coding, the indication of the channel quality behind the coding is sent to the base station by corresponding ascending control information.
High order modulation signal transmission method in the above-mentioned TD-SCDMA system HSDPA, wherein, this high-order modulating comprises: 32QAM, 64QAM or 256QAM.
The present invention contrasts prior art following beneficial effect: the present invention is by in the HSDPA of high order modulation system, by to the transmission block in down control channel (HS-SCCH) and the ascending control channel (HS-SICH) size indication information boil down to 5 bits, other 1 bit and modulation system indication information 1 bit are formed new 2 bits indication high-order modulating, realized control to high-order modulating, make HSDPA systems support high contrast system mode, improved system peak transmission rate and band efficiency effectively.
Description of drawings
Fig. 1 is the flow chart of the embodiment of high order modulation method for transmitting signaling in the TD-SCDMA system HSDPA of the present invention.
Fig. 2 is the coding of down control channel of the present invention (HS-SCCH) and the flow chart of multiplexing embodiment.
Fig. 3 is the coding of ascending control channel of the present invention (HS-SICH) and the flow chart of multiplexing embodiment.
Fig. 4 is the sub-process figure of step S14 among Fig. 1 embodiment.
Embodiment
The present invention will be further described below in conjunction with drawings and Examples.
Fig. 1 shows the flow process of the embodiment of high order modulation method for transmitting signaling in the TD-SCDMA system HSDPA of the present invention.Seeing also Fig. 1, is the detailed description to each process step in this transmission method below.
Step S10: with the size of the transmission block in down control channel (HS-SCCH) and the ascending control channel (HS-SICH) indication information boil down to 5 bits (bit), 1 bit in addition and 1 bit combination of modulation system indication information are together in order to indicate high-order modulating (as 32QAM, 64QAM, 256QAM).
Step S11:UE receives the message of down control channel (HS-SCCH), indicates the resource allocation conditions of next high speed descending sharing channel (HS-DSCH) transmission.
In this step, UE receives the message of HS-SCCH, HS-SCCH message is separated physical process handle, and extracts the HS-DSCH control information, resolve a transmission block size indication information high position or low level and modulation system indication information, thereby obtain the high-order modulating of HS-DSCH.
Step S12:UE carries out corresponding channel measurement.
In this step, UE receives HS-DSCH according to the control information of HS-SCCH on the time interval of distributing, the HS-DSCH data are carried out corresponding channel measurement, the data on the HS-DSCH are carried out demodulation according to big or small indication information of the transmission block of HS-SCCH and modulation system indication information.
Step S13: according to resource distribution situation and the channel measurement result of HS-DSCH, UE selects suitable transmission block size and high-order modulating, produces a channel quality indication (CQI).CQI comprises the recommendation modulation system and recommends the transmission block size.
Step S14: the CQI of generation reports to the base station at corresponding HS-SICH.
In this step, 1 bit in the middle of the recommendation modulation system (RMF) of 2 new bits is repeated 16 times, 5 bits of other 1 bit and recommendation transmission block size (RTBS) are formed 6 new bits and are carried out 1 rank Reed-Muller (32,6) coding sends to base station (Node B) to the CQI behind the coding by corresponding HS-SICH.
Step S15: the control information that high-order modulating will be contained in the base station sends to UE by HS-SCCH.
In the above embodiment of the present invention, mainly be to utilize the size of the transmission block in down control channel (HS-SCCH) and the ascending control channel (HS-SICH) indication information boil down to 5 bits, other 1 bit and modulation system indication information 1 bit are formed new 2 bits indication high-order debud mode.To the coding of the coding of HS-SCCH and multiplexing and HS-SICH and multiplexing aspect, have some differences.
Fig. 2 shows HS-SCCH coding, multiplexing flow process, sees also Fig. 2.The signaling of the HS-SCCH carrying among the present invention is: spreading code set information (8 bit) x
Ccs, 1, x
Ccs, 2..., x
Ccs, 8Gap information (5 bit) x
Ts, 1, x
Ts, 2..., x
Ts, 5Modulation system information (1 bit) x
Ms, 1Transport block size information (6 bit) x
Tbs, 1, x
Tbs, 2..., x
Tbs, 5, x
Ms, 2Hybrid automatic repeat request process information (3 bit) x
Hap, 1, x
Hap, 2..., x
Hap, 3Redundancy version information (3 bit) x
Rv, 1, x
Rv, 2, x
Rv, 3New data indication (1 bit) x
Nd, 1HS-SCCH cyclic sequence number (3 bit) x
Hcsn, 1, x
Hcsn, 2, x
Hcsn, 3UE identification number (16 bit) x
Ue, 1, x
Ue, 2..., x
Ue, 16Transport block size information is by 6 original bit information boil down to x
Tbs, 1, x
Tbs, 2..., x
Tbs, 5, 5 bits, 1 bit x in addition
Ms, 21 bit x with modulation system information
Ms, 1Common indication high-order modulating.
Step S20:HS-SCCH information multiplexing.Wherein,
a
1，a
2...a
8＝x
ccs，1，x
ccs，2...x
ccs，8
a
9，a
10...a
13＝x
ts，1，x
ts，2...x
ts，5
a
14＝x
ms，1
a
15，a
16...a
20＝x
tbs，1，x
tbs，2...x
tbs，5，x
ms，2
a
21，a
22，a
23＝x
hap，1，x
hap，2，x
hap，3
a
24，a
25，a
26＝x
rv，1，x
rv，2，x
rv，3
a
27＝x
nd，1
a
28，a
29，a
30＝x
hcsn，1，x
hcsn，2，x
hcsn，3
Step S21: additional CRC (CRC) is 16 CRC check bit with length and length is that 16 UE identifies x
Ue, 1, x
Ue, 2... x
Ue, 16Carry out mould 2 and add, the sequence that obtains is attached to list entries a
1, a
2... a
AAfter, obtain exporting bit b
1, b
2... b
B
Step S22: chnnel coding, use 1/3 convolutional encoding to input bit b
1, b
2... b
BEncode, obtain exporting bit c
1, c
2... c
c
Step S23: rate-matched, identical with the speed matching method of general service channel, output f
1, f
2... f
R
Step S24:HS-SCCH interweaves, and is identical with the deinterleaving method of general service channel, output v
1, v
2... v
R
Step S25: physical channel segmentation, input bit is divided into two sections, length is 84 and 88 bits, output
。
Step S26: the physical channel mapping is mapped to two segment datas respectively on the corresponding physical channel.
Fig. 3 shows the coding of HS-SICH, multiplexing flow process, sees also Fig. 3.The signaling of the HS-SICH carrying among the present invention comprises: recommend modulation system (RMF) (1 bit) x
Rmf, 1Recommend transmission block size (RTBS) (6 bit) x
Rtbs, 1, x
Rtbs, 2..., x
Rtbs, 5, x
Rmf, 2Mix automatic repeat requests confirmation ACK/NACK (1 bit) x
An, 1
Step S30: to recommending modulation system (RMF) x
Rmf, 1With recommendation transmission block size (RTBS) x
Rtbs, 1, x
Rtbs, 2..., x
Rtbs, 5, x
Rmf, 2Carry out the CQI coding, obtain Z
1, Z
2..., Z
NCQI
Step S31: carry out simultaneously with step S30.To mixing automatic repeat requests confirmation ACK/NACK (1 bit) x
An, 1Carry out the ACK/NACK coding, obtain C
1, C
2..., C
36
Step S32:HS-SICH is multiplexing, and CQI information and HARQ information are carried out cascade.Wherein,
d
1，d
2...d
nCQI＝z
1，z
2...z
nCQI
d
nCQI+1，d
nCQI+2...d
nCQI+36＝c
1，c
2...c
36
d
nCQI+37，d
nCQI+38...d
u＝0，0...0
Step S33:HS-SICH interweaves, and is identical with the deinterleaving method of general service channel, is output as v
1, v
2V
u
Step S34: the physical channel mapping is mapped to data bit on the physical channel.
Fig. 4 shows the process of Fig. 1 embodiment step S14, sees also Fig. 4.CQI among the ascending control channel HS-SICH comprises RTBS and RMF.
Step S40: with the wherein 1 bit (x among the 2 new bit RMF
Rmf, 1) repeat 16 times, obtain Z
37, Z
38..., Z
48
Step S41: carry out simultaneously with step S40.Another bit (x among the RMF
Rmf, 2) and the 5 bit (x of RTBS
Rtbs, 1..., x
Rtbs, 5) form 6 new bits, carry out Reed-Muller (32,6) coding, obtain Z
1, Z
2..., Z
36
Step S42:CQI information multiplexing, the CQI behind the coding sends to base station (Node B) by corresponding HS-SICH.
Inventive point of the present invention is: do not changing any control information of HS-SCCH and HS-SICH, by adopting transmission block size indication information boil down to 5 bits, other 1 bit and modulation system indication information 1 bit are formed 2 new bits, indicate high-order modulating effectively, realize containing the HSDPA high speed packet service up-downgoing signaling transmission of high-order modulating, improved the transmission performance of system and the utilance of frequency band.
The foregoing description provides to those of ordinary skills and realizes or use of the present invention; those of ordinary skills can be under the situation that does not break away from invention thought of the present invention; the foregoing description is made various modifications or variation; thereby protection scope of the present invention do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (6)
1, high order modulation signal transmission method in a kind of TD-SCDMA system HSDPA comprises:
(1) with the size of the transmission block in down control channel and ascending control channel indication information boil down to 5 bits, 1 bit combination of remaining 1 bit and modulation system indication information is together in order to the indication high-order modulating;
(2) terminal receives the message of this down control channel, indicates the resource allocation conditions of next high speed descending sharing channel transmission;
(3) terminal is carried out channel measurement;
(4) according to the high speed descending sharing channel resource allocation conditions of step (2) and the channel measurement result of step (3), terminal is selected suitable transmission block size and high-order modulating, produces the channel quality indication;
(5) this channel quality indication that produces reports to the base station at corresponding this ascending control channel;
(6) the base station control information that will contain high-order modulating sends to terminal by this down control channel.
2, high order modulation signal transmission method in the TD-SCDMA system HSDPA according to claim 1 is characterized in that, step (2) comprising:
(2.a) terminal receives the message of this down control channel;
(2.b) message of this down control channel is separated physical process and handle, transmission block size indication information and modulation system indication information are resolved in the control information of extracting this high speed descending sharing channel, obtain the High Speed Modulation mode of this high speed descending sharing channel.
3, high order modulation signal transmission method in the TD-SCDMA system HSDPA according to claim 2 is characterized in that, step (3) comprising:
(3.a) terminal receives this high speed descending sharing channel according to the control information of this down control channel on the time interval of distributing;
(3.b) terminal is carried out channel measurement to the data of this high speed descending sharing channel;
(3.c) terminal is carried out demodulation according to the transmission block size indication information and the modulation system indication information of this down control channel to the data on this high speed descending sharing channel.
4, high order modulation signal transmission method in the TD-SCDMA system HSDPA according to claim 3 is characterized in that, this channel quality indication of step (4) comprises to be recommended modulation system and recommend the transmission block size.
5, high order modulation signal transmission method in the TD-SCDMA system HSDPA according to claim 4 is characterized in that, step (5) comprising:
Recommend one of them bit of modulation system to repeat 16 times this of 2 bits, another bit and this recommend 5 bits of transmission block size to form 6 new bits, carry out Reed-Muller (32,6) coding, the indication of the channel quality behind the coding is sent to the base station by corresponding ascending control information.
6, according to high order modulation signal transmission method in each described TD-SCDMA system HSDPA in the claim 1～5, it is characterized in that this high-order modulating comprises: 32QAM, 64QAM or 256QAM.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102256355A (en) * | 2010-05-19 | 2011-11-23 | 鼎桥通信技术有限公司 | High speed-physical downlink shared channel (HS-PDSCH) transmission method and device in high speed downlink packet access (HSDPA) |
| CN102624501A (en) * | 2011-01-31 | 2012-08-01 | 中兴通讯股份有限公司 | Method and apparatus for sending channel quality indication |
| WO2018027916A1 (en) * | 2016-08-12 | 2018-02-15 | 华为技术有限公司 | Method for transmitting control information, base station and user equipment |
| WO2018126972A1 (en) * | 2017-01-04 | 2018-07-12 | 华为技术有限公司 | Communication method, and terminal device and network device implementing same |
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| CN102256355A (en) * | 2010-05-19 | 2011-11-23 | 鼎桥通信技术有限公司 | High speed-physical downlink shared channel (HS-PDSCH) transmission method and device in high speed downlink packet access (HSDPA) |
| CN102256355B (en) * | 2010-05-19 | 2013-12-25 | 鼎桥通信技术有限公司 | High speed-physical downlink shared channel (HS-PDSCH) transmission method and device in high speed downlink packet access (HSDPA) |
| CN102624501A (en) * | 2011-01-31 | 2012-08-01 | 中兴通讯股份有限公司 | Method and apparatus for sending channel quality indication |
| CN102624501B (en) * | 2011-01-31 | 2016-11-09 | 南京中兴新软件有限责任公司 | A kind of method and apparatus sending channel quality instruction |
| WO2018027916A1 (en) * | 2016-08-12 | 2018-02-15 | 华为技术有限公司 | Method for transmitting control information, base station and user equipment |
| CN110140373A (en) * | 2017-01-04 | 2019-08-16 | 华为技术有限公司 | A kind of communication means and its terminal device, the network equipment |
| CN109246754A (en) * | 2017-01-04 | 2019-01-18 | 华为技术有限公司 | A kind of communication means and its terminal device, the network equipment |
| WO2018126972A1 (en) * | 2017-01-04 | 2018-07-12 | 华为技术有限公司 | Communication method, and terminal device and network device implementing same |
| CN109246754B (en) * | 2017-01-04 | 2019-10-22 | 华为技术有限公司 | A kind of communication means and its terminal device, the network equipment |
| CN112714470A (en) * | 2017-01-04 | 2021-04-27 | 华为技术有限公司 | Communication method, terminal equipment and network equipment thereof |
| US11071146B2 (en) | 2017-01-04 | 2021-07-20 | Huawei Technologies Co., Ltd. | Communication method, terminal device, and network device |
| CN112714470B (en) * | 2017-01-04 | 2022-09-02 | 华为技术有限公司 | Communication method, terminal equipment and network equipment thereof |
| CN110140373B (en) * | 2017-01-04 | 2023-08-22 | 华为技术有限公司 | Communication method, terminal equipment and network equipment thereof |
| US11864239B2 (en) | 2017-01-04 | 2024-01-02 | Huawei Technologies Co., Ltd. | Communication method, terminal device, and network device |
| WO2019134448A1 (en) * | 2018-01-04 | 2019-07-11 | Oppo广东移动通信有限公司 | Data transmission method, terminal device, network device, and computer storage medium |
| US11419095B2 (en) | 2018-01-04 | 2022-08-16 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Data transmission method, terminal device, network device, and computer storage medium |
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