CN107666374A - A kind of transmission method of the HARQ ACK informations of sPUCCH - Google Patents
A kind of transmission method of the HARQ ACK informations of sPUCCH Download PDFInfo
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- CN107666374A CN107666374A CN201610602955.3A CN201610602955A CN107666374A CN 107666374 A CN107666374 A CN 107666374A CN 201610602955 A CN201610602955 A CN 201610602955A CN 107666374 A CN107666374 A CN 107666374A
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- ack
- nack
- information
- index
- stti
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1896—ARQ related signaling
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
The present invention provides a kind of transmission method of sPUCCH HARQ ACK informations, including：Using DMRS sequences come loading ACK/nack message, each ACK/NACK states are mapped to the different cyclic shift index values of DMRS sequences.This method, using the DMRS sequences that cyclic shift length is 12 come loading ACK/nack message, effectively expands to the sTTI of various length, and 2 intersymbols can further strengthen transmission reliability by different interlacing patterns based on 2 symbol lengths sTTI.
Description
Technical field
The present invention relates to communication technical field, more particularly, to a kind of physical uplink control channel (Physical
Uplink Control Channel, sPUCCH) hybrid automatic repeat-request response message (Hybrid Automatic
Repeat request Acknowledge, HARQ-ACK) transmission method.
Background technology
At present, 3GPP has set up the project on " low time delay high reliable communication technology ", and there is defined short transmission interval (short
Transmission Time Interval, sTTI), represent that transport layer is directed to the time interval of physical layer sampling, for carrying
The business more harsh to delay requirement.STTI length is variable, can include one or more symbols in principle, current most factories
Family tends to the sTTI of 2/7 symbol lengths.The sTTI of 7 symbol lengths, existing PUCCH designs only need smaller change to weigh
With.And the sTTI of 2 symbol lengths, it is necessary to PUCCH transformats are redesigned, to adapt to hybrid automatic repeat-request response message
Transmission.
In LTE system, because upstream and downstream subframe is not one-to-one, HARQ-ACK corresponding to multiple descending sub frames believes
Breath needs to send on the ascending physical signal control channel PUCCH of a sub-frame of uplink.Wherein, descending sub frame collection corresponding to sub-frame of uplink
Binding window has been combined into, has determined the sending method of two kinds of HARQ-ACK response messages, one kind is HARQ-ACK binding methods, one
Kind is HARQ-ACK multiplexing methods.
The core of binding method is should to the HARQ-ACK of streams of code words corresponding to each descending sub frame of sub-frame of uplink feedback
Answer information and carry out logical operation, obtain the HARQ-ACK response messages of 1/2 Bitsoft, be transmitted.The core of multiplexing method is profit
Represent to need the descending sub frame fed back in the sub-frame of uplink with modulation symbol different on different PUCCH channels and the channel
Different feedback states.When UE does not have PUSCH transmissions in present sub-frame, UE will be selected on PUCCH using 1b combined channels
Mode sends HARQ-ACK response messages.
Each PUCCH takes a resource block (RB) in one time slot, and uplink demodulation pilot tone (DMRS) is by one
Zadoff-Chu basic sequences produce by different displacements.HARQ responses (ACK/NACK) information of downlink data transmission, in RB
On interior each SC-FDMA symbols, using the CAZAC sequences that length is 12, to an ascending control channel signaling on frequency domain
Spread, resulting 12 spread symbols will be mapped on 12 subcarriers in order.
In addition, using orthogonal code (Orthogonal Cover Code, OCC) sequence in time domain to a upload control
Signaling symbols are spread, and the spread symbol of gained will be mapped on multiple SC-FDMA symbols in order, can further be increased multiple
Use capacity.
The sTTI of 7 symbol lengths can use above-mentioned DMRS cyclic shifts and OCC orthogonal codes to design, it is ensured that ACK/NACK information
Decoding and RB in users multiplexing quantity.2 symbol lengths sTTI, current most producers tend to sPUCCH as shown in Figure 1
Schematic diagram.
Therefore, as shown in figure 1,2 symbol lengths sTTI, even if not using OCC, can not also carry out frequency hopping in TTI, and also
Weigh the overhead issues for considering DMRS, it is therefore desirable to HARQ-ACK transmission when redesigning 2 symbol lengths sTTI on sPUCCH
Method.
The content of the invention
The present invention provides the HARQ- on a kind of sPUCCH for overcoming above mentioned problem or solving the above problems at least in part
ACK transmission methods.
According to an aspect of the present invention, there is provided a kind of transmission method of the HARQ-ACK information of sPUCCH, wherein, it is described
Method includes：
Using DMRS sequences come loading ACK/nack message, each ACK/NACK states are mapped to the difference of DMRS sequences
Cyclic shift index value.
Wherein, the cyclic shift index value length of the DMRS sequences is 12.
Wherein, it is divided into 2 groups for 1bit ACK/NACK information, cyclic shift index value；
Index 0-5 and represent ACK information, index 6-11 represents nack message；Or
Index 0-5 and represent nack message, index 6-11 represents ACK information.
Wherein, index component one user of dispensing, decode for transmitting the user by sPDSCH resulting
1bit ACK/NACK information.
Wherein, for 2bit ACK/NACK information, cyclic shift index value is divided into 4 groups, an index component dispensing one
Individual user, resulting 2bit ACK/NACK information is decoded for transmitting the user by sPDSCH.
Wherein, methods described further comprises：
User profile is misplaced using interlacing pattern, to strengthen the reliability of transmission.
Wherein, methods described further comprises：
In the 2 symbol sTT based on the interlacing pattern, DMRS of first symbol transmission with ACK information, second symbol
The DMRS of ACK/NACK information after transmission belt intertexture.
Wherein, methods described is applied to 2 symbol lengths sTTI, wherein, 2 symbols both function as the HARQ-ACK of same user
Information transfer.
Wherein, methods described further comprises：
Multiple users are multiplexed using OCC orthogonal codes, so that multiplexing capacity doubles；Wherein, it is single during 1bit ACK/NACK
STTI supports 12 users；During 2bit ACK/NACK, single sTTI supports 6 users.
The application proposes the HARQ-ACK transmission methods on sPUCCH during a kind of 2 symbol lengths sTTI, and core is can be with
By the cyclic shift (length 12) of DMRS sequences come loading ACK/nack message.In view of 2 symbol lengths sTTI DRMS
Overhead issues, and can using OCC orthogonal codes further to increase multiplexing capacity the problem of.The present processes are with 2 symbol lengths
Based on sTTI, using the DMRS sequences that cyclic shift length is 12 come loading ACK/nack message, can effectively it expand to various
The sTTI of length, and 2 intersymbols can further strengthen transmission reliability by different interlacing patterns.
Brief description of the drawings
Fig. 1 is the sPUCCH schematic diagrames of 2 symbol sTTI in the prior art；
Fig. 2 is to index schematic diagram according to the 1bit ACK/NACK cyclic shifts of the embodiment of the present invention；
Fig. 3 is to index schematic diagram according to the 2bit ACK/NACK cyclic shifts of the embodiment of the present invention；
Fig. 4 is that HARQ-ACK transmits schematic diagram on the sPUCCH according to 2 symbol sTTI of the embodiment of the present invention；
Fig. 5 is to shift index schematic diagram according to the 2bit ACK/NACK+ interleaved cyclics of the embodiment of the present invention.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Wherein, DMRS is used for the correlation demodulation of upload control and data channel, and DMRS can upload in PUCCH and PUSCH
It is defeated.DMRS is only sent in the bandwidth for distribute to UE.In one example, in LTE system, DMRS is placed in every 0.5ms time slots
In 4th OFDMA symbol, there are two in a subframe.It is appreciated that in low time delay system, in each short TTI, all may
There is DMRS, it is also possible to which multiple short TTI share DMRS.
Generally speaking, under ACK/NACK merging modes, terminal feeds back 1bit (single codeword transmission) or 2bit (dicodes every time
Word transmits) information sends HARQ-ACK response messages.In LTE system, each PUCCH takes one in one time slot
RB, can be using the DMRS sequences that cyclic shift length is 12 come loading ACK/nack message, and can effectively expand to each
The sTTI of kind length.Wherein, a kind of method of simple possible is exactly that each ACK/NACK states are mapped into DMRS sequences not
Same cyclic shift value.
Fig. 2 is to index schematic diagram according to the 1bit ACK/NACK cyclic shifts of the embodiment of the present invention, as shown in Fig. 2 1bit
ACK/NACK information, the cyclic shift index value that length is 12 is divided into 2 groups, index 0-5 represents ACK information, indexes 6-11
Represent nack message.One index group, such as (0,6) can distribute to a user, and knot is decoded by sPDSCH for transmitting the user
The ACK/NACK information of 1bit caused by fruit.
Fig. 3 is to index schematic diagram according to the 2bit ACK/NACK cyclic shifts of the embodiment of the present invention, as shown in figure 3,2bit
ACK/NACK information, the cyclic shift index value that length is 12 is divided into 4 groups, index 0-2 represents (ACK, ACK), indexes 3-5
Represent (ACK, NACK), index 6-8 represents (NACK, NACK), and index 9-11 represents (NACK, ACK).One index group, such as rope
A user can be distributed to by drawing (0,3,6,9), and resulting 2bit ACK/ is decoded for transmitting the user by sPDSCH
Nack message.
Further, it is possible to which user profile dislocation is strengthened into the reliability of transmission using interlacing pattern, Fig. 4 is according to this hair
HARQ-ACK transmits schematic diagram on 2 symbol sTTI of bright embodiment sPUCCH, as shown in figure 4, in 2 symbol sTTI, first
DMRS of the individual symbol transmission with ACK information, the DMRS of the ACK/NACK information after second symbol transmission band interweaves.Intersection chart
Case can be as shown in figure 5, during such as first symbol, and index (0,3,6,9) distributes to UE1, and index (Isosorbide-5-Nitrae, 7,10) distributes to UE2,
(2,5,8,11) distribute to UE3；During second symbol, (Isosorbide-5-Nitrae, 7,10) distributes to UE1, and (2,5,8,11) distribute to UE2, (0,
3,6,9) UE3 is distributed to, Fig. 5 is merely illustrative, however not excluded that other interlacing patterns.
In view of sPUCCH high reliability request, during 2 symbol lengths sTTI, 2 symbols both function as same user's
HARQ-ACK information transfers.Do not use OCC, during 1bit (single codeword transmission) ACK/NACK, single sTTI can at most support 6 use
Family；During 2bit (double codeword transmissions) ACK/NACK, single sTTI can at most support 3 users.
Certainly, using OCC orthogonal code multiplex modes, then can be doubled with multiplexing capacity, 1bit (single codeword transmission) ACK/
During NACK, single sTTI can at most support 12 users；During 2bit (double codeword transmissions) ACK/NACK, single sTTI can at most be supported
6 users.
Finally, the present processes are only preferable embodiment, are not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc., the protection of the present invention should be included in
Within the scope of.
Claims (9)
1. the transmission method of a kind of sPUCCH HARQ-ACK information, it is characterised in that methods described includes：
Using DMRS sequences come loading ACK/nack message, the difference that each ACK/NACK states are mapped to DMRS sequences circulates
Shift index value.
2. according to the method for claim 1, it is characterised in that the cyclic shift index value length of the DMRS sequences is
12。
3. method according to claim 1, it is characterised in that for 1bit ACK/NACK information, cyclic shift index value
It is divided into 2 groups；
Index 0-5 and represent ACK information, index 6-11 represents nack message；Or
Index 0-5 and represent nack message, index 6-11 represents ACK information.
4. according to the method for claim 3, it is characterised in that index component one user of dispensing, for transmitting this
User is decoded resulting 1bit ACK/NACK information by sPDSCH.
5. according to the method for claim 1, it is characterised in that for 2bit ACK/NACK information, cyclic shift index
Value is divided into 4 groups, index component one user of dispensing, decodes resulting 2bit's by sPDSCH for transmitting the user
ACK/NACK information.
6. according to the method for claim 1, it is characterised in that methods described further comprises：
User profile is misplaced using interlacing pattern, to strengthen the reliability of transmission.
7. according to the method for claim 6, it is characterised in that methods described further comprises：
In the 2 symbol sTT based on the interlacing pattern, DMRS of first symbol transmission with ACK information, second symbol transmission
DMRS with the ACK/NACK information after interweaving.
8. method according to claim 1, it is characterised in that methods described is applied to 2 symbol lengths sTTI, wherein, 2 symbols
Both function as the HARQ-ACK information transfers of same user.
9. according to the method for claim 8, it is characterised in that methods described further comprises：
Multiple users are multiplexed using OCC orthogonal codes, so that multiplexing capacity doubles；Wherein, during 1bit ACK/NACK, single sTTI
Support 12 users；During 2bit ACK/NACK, single sTTI supports 6 users.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610602955.3A CN107666374A (en) | 2016-07-27 | 2016-07-27 | A kind of transmission method of the HARQ ACK informations of sPUCCH |
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| CN201610602955.3A CN107666374A (en) | 2016-07-27 | 2016-07-27 | A kind of transmission method of the HARQ ACK informations of sPUCCH |
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| CN107666374A true CN107666374A (en) | 2018-02-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020024790A1 (en) * | 2018-08-02 | 2020-02-06 | 维沃移动通信有限公司 | Method and device for mapping feedback information |
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| CN101940046A (en) * | 2008-02-04 | 2011-01-05 | 诺基亚西门子通信公司 | Mapping a cyclic shift to a channel index for ACK/NACK resource allocation |
| CN102480347A (en) * | 2010-11-23 | 2012-05-30 | 中兴通讯股份有限公司 | Feedback method and device of confirmation information during trunk line subframe configuration switching |
| US20120320848A1 (en) * | 2011-06-17 | 2012-12-20 | Texas Instruments Incorporated | Hybrid automatic repeat request acknowledge resource allocation for enhanced physical downlink control channel |
| CN104838713A (en) * | 2012-12-14 | 2015-08-12 | 华为技术有限公司 | System and method for small traffic transmissions |
| WO2018081969A1 (en) * | 2016-11-03 | 2018-05-11 | 富士通株式会社 | Information transmission device, method and communication system |
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Patent Citations (5)
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|---|---|---|---|---|
| CN101940046A (en) * | 2008-02-04 | 2011-01-05 | 诺基亚西门子通信公司 | Mapping a cyclic shift to a channel index for ACK/NACK resource allocation |
| CN102480347A (en) * | 2010-11-23 | 2012-05-30 | 中兴通讯股份有限公司 | Feedback method and device of confirmation information during trunk line subframe configuration switching |
| US20120320848A1 (en) * | 2011-06-17 | 2012-12-20 | Texas Instruments Incorporated | Hybrid automatic repeat request acknowledge resource allocation for enhanced physical downlink control channel |
| CN104838713A (en) * | 2012-12-14 | 2015-08-12 | 华为技术有限公司 | System and method for small traffic transmissions |
| WO2018081969A1 (en) * | 2016-11-03 | 2018-05-11 | 富士通株式会社 | Information transmission device, method and communication system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020024790A1 (en) * | 2018-08-02 | 2020-02-06 | 维沃移动通信有限公司 | Method and device for mapping feedback information |
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Application publication date: 20180206 |