CN101150571B - Transmission method of control signaling and reference signal based on broadband single carrier system - Google Patents
Transmission method of control signaling and reference signal based on broadband single carrier system Download PDFInfo
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- CN101150571B CN101150571B CN2006101272668A CN200610127266A CN101150571B CN 101150571 B CN101150571 B CN 101150571B CN 2006101272668 A CN2006101272668 A CN 2006101272668A CN 200610127266 A CN200610127266 A CN 200610127266A CN 101150571 B CN101150571 B CN 101150571B
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Abstract
The invention discloses a transmitting method of control signallings and reference signals based on a broadband single carrier system, and a transmitting signal unit in terms of a subframe, wherein, each subframe comprises one or more long data blocks and short data blocks for transmitting control signallings or reference signals. The method comprises following steps: utilizing a first short data block to transmit control signallings at the most front end of each subframe; utilizing a second short data block to transmit reference signals; utilizing a third short data block to transmit control signallings or user data; utilizing the first, the second, the third, the fourth long data blocks to transmit user data or signallings relating with data transmission; utilizing the fourth short data block to transmit reference signals; utilizing the fifth long data block to transmit user data or signallings relating with data transmission. The disadvantages of too long delay time of control signalling demodulation and resource waste in the prior art are overcame by using the method of the invention.
Description
Technical field
The present invention relates to digital communicating field, relate in particular to a kind of based on the control signaling of broadband single carrier system and the sending method of reference signal.
Background technology
Concerning communication system, the control signaling that layer is 1/ layer 2 retransmits and all is very important scheduling, link circuit self-adapting, the mixing of the channel that depends on this signaling.The signaling that layer is 1/ layer 2 mainly comprises: the signaling that (1) is relevant with transfer of data, in full reportedly transport format, mixing retransmission information etc.; (2) with the irrelevant signaling of transfer of data, as reply with the dispatch request of channel quality indication (CQI) information, transfer of data etc.
In E-UTRA, the transmission of signal is unit with the subframe.In traditional control signaling and the transfer of data time division multiplexing sending method, subframe of up link comprises 8 data blocks, by 2 SB (Short Block, short data block) and 6 LB (Long Block, the long data piece) forms, as shown in Figure 1, LB1 shown in this figure, in subframe foremost, be used to send and the irrelevant signaling of user data, SB1 and SB2 are used to send public reference signal, the measurement that this reference signal can be used to control the channel estimating of signaling and transfer of data or be used for channel quality.Six long data pieces of LB1～LB6 all are used to send user data or the control signaling relevant with user data, and when not controlling signaling, LB1～LB6 sends user data, and when user data of no use, LB1～LB6 also can be used to control the transmission of signaling.Because when the SB of the LB that sends control signaling and the transmission of reference signals of correspondence receives, the demodulation of control signaling ability, the time-delay of therefore this sending method control signaling is bigger, and the control signaling consumption is less, and hence one can see that with a LB sends control signaling and can cause the serious waste of running time-frequency resource.
In the R1-061794 of 3GPP motion, Qualcomm company has proposed a kind of improved sending method.In this method, a subframe comprises 9 data blocks, form by 4 SB and 5 LB, as shown in Figure 2, the SB1 shown in this figure, in subframe foremost, be used to send and signaling that user data is irrelevant, SB2 is used to send special-purpose reference signal, and this signal is used for the demodulation with the irrelevant control signaling of user data, SB3 and SB4 are used to send public reference signal, and this reference signal is used for the channel estimating of transfer of data or is used for the measurement of channel quality.Five long data pieces of LB1～LB5 all are used to send user data or the control signaling relevant with user data, and when user data of no use, LB1～LB5 also can be used to control the transmission of signaling.And when not controlling signaling, SB1 and SB2 also can send user data.Compare above-mentioned traditional sending method of mentioning, this method can make the demodulation of control signaling carry the time interval of previous SB, but this sending method still has following shortcoming: the one, reduced available data transmission resources, this is because the control signaling has been introduced DRS (Dedicated Reference Signal), and has taken certain data transmission resources; The 2nd, the waste reference signal resource, this is to come transmission of reference signals just can satisfy the needs of channel estimating because need only in a subframe with 2 SB.Therefore just need do further improvement to the send mode of control signaling and reference signal.
Summary of the invention
It is a kind of based on the control signaling of broadband single carrier system and the sending method of reference signal that technical problem to be solved by this invention is to provide, the shortcoming such as long and wasting of resources with the time of delay that overcomes the control signal demodulation that exists in the prior art.
In order to solve the problems of the technologies described above, the invention provides a kind of based on the control signaling of broadband single carrier system and the sending method of reference signal, with the subframe is that unit forms transmission signal element, wherein, comprise in each subframe being used to send control signaling or the one or more long data pieces and the short data block of reference signal, comprise the steps:
(1) foremost, use first short data block to send control signaling in each subframe;
(2) after first short data block, use second short data block to send reference signal;
(3) after second short data block, use the 3rd short data block to send control signaling or user data;
(4) after the 3rd short data block, use first, second, third, fourth long data piece to send user data or the signaling relevant with transfer of data;
(5) behind the 4th long data piece, use the 4th short data block to send reference signal;
(6) after the 4th short data block, use the 5th long data piece to send user data or the signaling relevant with transfer of data.
Wherein, in the described step (1), when not controlling signaling, use first short data block to send user data.
Wherein, in the described step (3), when not controlling signaling, use the 3rd short data block to send user data.
Wherein, in the described step (4), when user data of no use, use first, second, third, fourth long data piece to send control signaling.
Wherein, in the described step (6), when user data of no use, use the 5th long data piece to send control signaling.
Wherein, in the described step (6), in tdd systems, use the 5th long data piece as switching guard interval.
Wherein, the described reference signal measurement that is used to control the channel estimating of signaling and transfer of data or is used for channel quality.
Of the present invention based on the control signaling of broadband single carrier system and the sending method of reference signal, compared with prior art, can make full use of existing reference signal resource and realize the reliable demodulation of control signaling and transfer of data, saved running time-frequency resource, in addition, the scheduling that the low delay of control signaling is demodulated into the base station has been won more time and has been carried out more timely accurately scheduling, can support more highspeed user control channel simultaneously simultaneously.
Description of drawings
Fig. 1 is the sending method schematic diagram of traditional control signaling and reference signal based on broadband single carrier system;
Fig. 2 is the sending method schematic diagram of a kind of improved control signaling and the reference signal based on broadband single carrier system that propose of Qualcomm;
Fig. 3 is the sending method schematic diagram according to described a kind of control signaling and the reference signal based on broadband single carrier system of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
With reference to figure 3, be the sending method schematic diagram of described a kind of control signaling and the reference signal based on broadband single carrier system of the embodiment of the invention.As shown in the figure, comprise 9 data blocks in the subframe, 4 SB and 5 LB are arranged.
Wherein, first data block is SB1, in subframe foremost, use SB1 to send control signaling, behind SB1 SB2, use SB2 to send reference signal, the measurement that this reference signal is used to control the channel estimating of signaling and transfer of data or is used for channel quality is SB3 behind SB2, uses SB3 to send control signaling or user data, behind SB3 four long data pieces of LB1～LB4, using LB1～LB4 to send user data or the signaling relevant with transfer of data, is SB4 behind LB4, uses SB4 to send reference signal, behind SB4, use LB5 to send user data or the signaling relevant with transfer of data.
Described LB1～LB5 sends user data; and when user data of no use, LB1～LB5 also can be used to send control signaling, and at TDD (Time Division Duplex; time division duplex) in the system, LB5 can be as the switching guard interval between the uplink downlink.At this moment, system does not send any data in this data block.And when not controlling signaling, described SB1 also can be used to send user data.
Described SB3 sends the user data except being used to, and also can be used to send control signaling, and this is very beneficial to the more situation of control signaling quantity number of users more or control channel simultaneously.
Method of the present invention has improved the dispatching of utilization rate of time-frequency resources and base station under the prerequisite that guarantees control signaling and transfer of data reliable demodulation, also kept the characteristic of low peak average ratio simultaneously.
Claims (6)
1. one kind based on the control signaling of broadband single carrier system and the launching technique of reference signal, with the subframe is that unit forms the unit that transmits, wherein, comprise in each subframe and be used to send control signaling or the one or more long data pieces and the short data block of reference signal, it is characterized in that, comprise the steps:
(1) foremost, use first short data block to send control signaling in each subframe;
(2) after first short data block, use second short data block to send reference signal;
(3) after second short data block, use the 3rd short data block to send control signaling or user data; When not controlling signaling, use the 3rd short data block to send user data;
(4) after the 3rd short data block, use first, second, third, fourth long data piece to send user data or the signaling relevant with transfer of data;
(5) behind the 4th long data piece, use the 4th short data block to send reference signal;
(6) after the 4th short data block, use the 5th long data piece to send user data or the signaling relevant with transfer of data.
2. the method for claim 1 is characterized in that, in the described step (1), when not controlling signaling, uses first short data block to send user data.
3. the method for claim 1 is characterized in that, in the described step (4), when user data of no use, uses first, second, third, fourth long data piece to send control signaling.
4. the method for claim 1 is characterized in that, in the described step (6), when user data of no use, uses the 5th long data piece to send control signaling.
5. the method for claim 1 is characterized in that, in the described step (6), in tdd systems, uses the 5th long data piece as switching guard interval.
6. the method for claim 1 is characterized in that, the measurement that described reference signal is used to control the channel estimating of signaling and transfer of data or is used for channel quality.
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| CN2006101272668A CN101150571B (en) | 2006-09-19 | 2006-09-19 | Transmission method of control signaling and reference signal based on broadband single carrier system |
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| CN2006101272668A CN101150571B (en) | 2006-09-19 | 2006-09-19 | Transmission method of control signaling and reference signal based on broadband single carrier system |
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| CN101150571B true CN101150571B (en) | 2010-06-16 |
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| US8996049B2 (en) * | 2009-01-29 | 2015-03-31 | Panasonic Intellectual Property Corporation Of America | Reference signal arrangement method and wireless communication base station apparatus |
| WO2011044734A1 (en) | 2009-10-16 | 2011-04-21 | Nokia Siemens Networks Oy | Method and apparatus for transmitting physical signals |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6940914B1 (en) * | 2001-06-11 | 2005-09-06 | Cingular Wireless Ii, Llc | Turbo channel estimation for OFDM systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6940914B1 (en) * | 2001-06-11 | 2005-09-06 | Cingular Wireless Ii, Llc | Turbo channel estimation for OFDM systems |
Non-Patent Citations (5)
| Title |
|---|
| link Analysis of ACK Channel in UL.3GPP TSG-RAN WG1 #45 R1-061517.2006,(R1-061517),第1页第2.1节图1. |
| link Analysis of ACK Channel in UL.3GPP TSG-RAN WG1 #45 R1-061517.2006,(R1-061517),第1页第2.1节图1. * |
| Numerology for E-UTRA.3GPP TSG RAN1 LTE Ad Hoc R1-061794.2006,(R1-061794),第5页第2.6节第1段，图4. |
| Numerology for E-UTRA.3GPP TSG RAN1 LTE Ad Hoc R1-061794.2006,(R1-061794),第5页第2.6节第1段,图4. * |
| 沈嘉.3GPP LTE核心技术及标准化进展.移动通信.2006,45-49. * |
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