CN101132387B - Control signaling used for communication system and transmitting method for its reference signal - Google Patents
Control signaling used for communication system and transmitting method for its reference signal Download PDFInfo
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- CN101132387B CN101132387B CN 200710146749 CN200710146749A CN101132387B CN 101132387 B CN101132387 B CN 101132387B CN 200710146749 CN200710146749 CN 200710146749 CN 200710146749 A CN200710146749 A CN 200710146749A CN 101132387 B CN101132387 B CN 101132387B
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Abstract
This invention discloses an emitting method for control signaling and its reference signals in communication system including: modulating control signaling and its reference signal of a user going to send control signaling with a frequency domain orthogonal or quasi-orthogonal code of fixed length and time domain orthogonal or quasi-orthogonal code of fixed length, dividing all symbols of sub-frames into multiple parts to send the modulated control signaling by the multiple symbols and send the modulated reference signals by the rest multiple symbols, in which, FH in sub-frames is realized by distributing different frequency domains for each part, which guarantees reliable transmission of control signaling of multiple users and realizes flexible multiplex of Sounding signals and control signaling when emitting Sounding and control signaling at the same time.
Description
Technical field
The present invention relates to the communications field, relate more specifically to a kind of for the control signal of communication system and the launching technique of reference signal thereof.
Background technology
In 3GPP Long Term Evolution (Long Term Evolution is called for short LTE) system, the emission of signal is take subframe as unit.In LTE, a subframe comprises several time/frequency source block, is used for the control signal that carrying is not transmitted simultaneously with business datum at the Resource Block at frequency domain two ends, the control signal that all the other Resource Block are used for the bearer service data and can transmit simultaneously with business datum.The subframe of a LTE time division duplex (Time Division Dual is called for short TDD) system type (TYPE) 2 has short CP and two kinds of patterns of long CP.To short CP pattern, a subframe has OFDM (Orthogonal Frequency Division Multiplexing the is called for short OFDM) symbol (as shown in Figure 1) of 9 symbols (Long Block is called for short LB) type.When business data transmission was arranged, the 5th LB on the Resource Block of business data transmission was used as data demodulates pilot tone (pilot tone also is reference signal), and other remaining LB are as business data transmission.When user's high-speed mobile, first LB also can be used as the data demodulates pilot tone.To long CP pattern, a subframe has the OFDM symbol (as shown in Figure 2) of 8 LB types.
Up signaling (mainly being ACK/NACK and the CQI signaling) regulation of not transmitting simultaneously with business datum is that the Resource Block near boundary belt transmits at subframe two ends; and there is not the transmission of business datum at this Resource Block, so its launching technique can be different from general business data (as shown in Figure 3).LTE has only discussed Frequency Division Duplexing (FDD) (FrequencyDivision Dual, be called for short FDD) system at present about the launching technique of control signal and reference symbol thereof, and the launching technique of TDD TYPE 2 control signals and reference signal thereof is not yet begun one's study.
Summary of the invention
One or more problems in view of the above the invention provides a kind of for the control signal of communication system and the launching technique of reference signal thereof.
Launching technique according to control signal of the present invention and reference signal thereof may further comprise the steps: with the frequency domain quadrature of regular length or time domain orthogonal or the quasiorthogonal code of quasiorthogonal code and regular length control signal and reference signal thereof are modulated; A plurality of symbols by subframe send the control signal through ovennodulation, and the residue symbol by subframe sends the reference signal through ovennodulation corresponding to control signal; All symbols of subframe are divided into a plurality of parts, by the control signal of a plurality of symbols transmissions that are used for control signal in every part through ovennodulation, and by the reference signal of a plurality of symbols transmissions that are used for reference signal in every part through ovennodulation, wherein, by distributing different frequency domain resource to realize frequency hopping in the subframe for every part.
When the control signal user had the measurement pilot frequency of transmission simultaneously, described measurement pilot frequency sent by the optional sign except the data demodulates frequency pilot sign in the described subframe.And the symbol being used for sending measurement pilot frequency does not send control signal and the reference signal that will send the measurement pilot frequency user.
Wherein, frequency domain quadrature or the quasiorthogonal code of the control signal of different user and reference signal thereof are identical or different, and the time domain orthogonal or the quasiorthogonal code that are used for the control signal of different user and reference signal thereof are identical or different.Different user with identical time domain orthogonal or quasiorthogonal code is assigned different frequency domain quadratures and hands over or quasiorthogonal code.Different user with same frequency quadrature or quasiorthogonal code is assigned different time domain orthogonals or quasiorthogonal code.
Wherein, it is identical or different to be respectively applied to time domain orthogonal or the quasiorthogonal code of same user's control signal and reference signal thereof.When the length of the time domain orthogonal of the control signal that is respectively applied to same user and reference signal thereof or quasiorthogonal code was identical, the time domain orthogonal or the quasiorthogonal code that are respectively applied to same user's control signal and reference signal thereof can be identical.
Wherein, the user with identical time domain orthogonal or quasiorthogonal code, different frequency domain quadrature or quasiorthogonal code can be divided into one group.The user who is divided organizes number depends on minimum length for all users' time domain orthogonal or quasiorthogonal code.Launching technique according to control signal of the present invention and reference signal thereof is applicable to broadband single carrier system.
Adopt the present invention, when not having business data transmission, can concurrent multiplexing a plurality of sending control signaling and the user of corresponding reference signal; By using quadrature (or accurate quadrature) code so that (or very little) avoided in these users interference each other; Can obtain frequency diversity gain by frequency hopping in the subframe, thereby improve the transmission performance of control signal; Special use has kept sending simultaneously Sounding and control signal and corresponding reference signal user's thereof single-carrier property to Sounding RS to keep a symbol by the control signal data, under the prerequisite that peak-to-average force ratio does not raise, guarantee the normal transmission of Sounding and then guaranteed the user data transmitting, the ability of power control and timing etc.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation of the up broadband single-carrier of LTE TDD TYPE2 under short CP pattern;
Fig. 2 shows the structural representation of the up broadband single-carrier of LTE TDD TYPE2 under long CP pattern;
Fig. 3 shows the schematic diagram that sends control signaling when a kind of broadband single-carrier user does not have transfer of data;
Structural representation when Fig. 4 shows and accounts for 4 LB and reference signal and account for 5 LB according to control signal under the short CP pattern of the embodiment of the invention;
Structural representation when Fig. 5 shows according to another embodiment of the present invention control signal under the short CP pattern and accounts for 4 LB and reference signal and account for 5 LB;
Structural representation when Fig. 6 shows according to another embodiment of the present invention control signal under the short CP pattern and accounts for 5 LB and reference signal and account for 4 LB;
Structural representation when Fig. 7 shows according to another embodiment of the present invention control signal under the short CP pattern and accounts for 5 LB and reference signal and account for 4 LB;
Structural representation when Fig. 8 shows according to another embodiment of the present invention control signal under the short CP pattern and accounts for 4 LB and reference signal and account for 5 LB;
Structural representation when Fig. 9 shows according to another embodiment of the present invention control signal under the short CP pattern and accounts for 4 LB and reference signal and account for 5 LB;
Structural representation when Figure 10 shows according to another embodiment of the present invention control signal under the short CP pattern and accounts for 5 LB and reference signal and account for 4 LB;
Structural representation when Figure 11 shows according to another embodiment of the present invention control signal under the short CP pattern and accounts for 5 LB and reference signal and account for 4 LB;
Structural representation when Figure 12 shows according to another embodiment of the present invention control signal under the short CP pattern and accounts for 5 LB and reference signal and account for 4 LB
Structural representation when Figure 13 shows and accounts for 4 LB and reference signal and account for 4 LB according to control signal under the long CP pattern of the embodiment of the invention;
Structural representation when Figure 14 shows control signal under the long according to another embodiment of the present invention CP pattern and accounts for 4 LB and reference signal and account for 4 LB;
Figure 15 shows according to another embodiment of the present invention the structural representation when control signal and Sounding RS transmit simultaneously under the short CP pattern;
Figure 16 shows according to another embodiment of the present invention the structural representation when control signal and Sounding RS transmit simultaneously under the short CP pattern;
Figure 17 shows the structural representation when control signal and Sounding RS transmit simultaneously under the long according to another embodiment of the present invention CP pattern; And
Figure 18 shows the structural representation when control signal and Sounding RS transmit simultaneously under the long according to another embodiment of the present invention CP pattern.
Embodiment
In the control signal for LTE TDD TYPE2 system according to the present invention and the launching technique of reference signal thereof, require:
In the unit that transmits that is comprised of a plurality of subframes, when not having business data transmission, each control signal resource forms by one or more OFDM symbols of control channel data and by the one or more OFDM symbols that transmit corresponding reference signal.
Each user uses identical time resource transfer control signaling and its corresponding reference signal, namely to take the time-domain position of symbol all identical for all users' control signal data, and the time-domain position that the reference signal that all users' control signal is corresponding takies symbol is also identical.
Each user distributes quadrature (or the accurate quadrature) code of a regular length at frequency domain, and this user carries out band spectrum modulation with this quadrature (or accurate quadrature) code of its distribution in control signal and its reference signal of frequency domain.
Quadrature (or quasiorthogonal code) code that each user distributes respectively a regular length for control signal and its corresponding reference signal in time domain, when quadrature (or the accurate quadrature) code length of distributing when same user's control signal and its corresponding reference signal equated, both can use identical time domain orthogonal (or accurate quadrature) code.
Different user distributes different frequency domain quadrature (or accurate quadrature) codes or time domain orthogonal (or accurate quadrature) code.Have the user of identical time domain orthogonal (or accurate quadrature) code and different frequency domain quadrature (or accurate quadrature) code to be divided into one group, these users distinguish by different frequency domain quadrature (or accurate quadrature) code at frequency domain.On the same group user does not distinguish by different time domain orthogonal (or accurate quadrature) code in time domain.On the same group user can not use identical frequency domain quadrature (or accurate quadrature) code.The largest packet number depends on the length of time domain extended code minimum.
Each user respectively is divided into several parts and realizes frequency hopping in the subframe on time domain and frequency domain resource.For example, suppose that a subframe has L symbol that is used for the reference signal transmission of control signal and correspondence thereof.First comprises the 1st to n symbol in time domain, takies the control signal bandwidth resources of frequency domain first.Second portion comprises n+1 to L symbol in time domain, takies the control signal bandwidth resources of frequency domain second portion.Here n is greater than 1 integer less than L.
When the control signal user had measurement pilot frequency Sounding RS to send simultaneously, SoundingRS can be positioned on any one symbol except the data demodulates pilot tone.Symbol at Sounding RS does not have the control signal data transmission.
User and the different frequency resource of CU that does not send Sounding RS control signal that all send Sounding RS control signal can avoid the phase mutual interference between the time domain different length orthogonal code.
Embodiment schematic diagram when Fig. 4 shows and accounts for 4 LB and reference signal and account for 5 LB according to control signal under the short CP pattern of the embodiment of the invention.In Fig. 4, a subframe has 9 LB.The the 1st to the 4th LB takies a frequency resource block, and wherein the 1st and the 4th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The the 2nd to 3 LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions.The the 5th to 9 LB takies another frequency resource block, and wherein the 5th and the 9th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The the 6th to 8 LB sends the reference signal of ACK, is that 3 discrete Fourier transform (Discrete Fourier Test, abbreviation DFT) is expanded in time domain with length.User's largest packet number is 2.
Embodiment schematic diagram when Fig. 5 shows according to another embodiment of the present invention control signal under the short CP pattern and accounts for 4 LB and reference signal and account for 5 LB.In Fig. 5, a subframe has 9 LB.The the 1st to the 4th LB takies a frequency resource block, and wherein the 1st and the 4th LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions; The the 2nd and the 3rd LB sends ack msg, obtained by 2 rank Walsh time domain expansions.The the 5th to the 9th LB takies another frequency resource block, and wherein the 5th and the 9th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The the 6th to 8 LB sends the reference signal of ACK, is that 3 DFT expands in time domain with length.
Embodiment schematic diagram when Fig. 6 shows according to another embodiment of the present invention control signal under the short CP pattern and accounts for 5 LB and reference signal and account for 4 LB.In Fig. 6, a subframe has 9 LB.The the 1st to the 4th LB takies a frequency resource block, and wherein the 2nd and the 3rd LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The the 1st and the 4th LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions.The the 5th to the 9th LB takies another frequency resource block, and wherein the 5th and the 9th LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions; The the 6th to 8 LB sends ack msg, is that 3 DFT expands in time domain with length.
Embodiment schematic diagram when Fig. 7 shows according to another embodiment of the present invention control signal under the short CP pattern and accounts for 5 LB and reference signal and account for 4 LB.In Fig. 7, a subframe has 9 LB.The the 1st to the 4th LB takies a frequency resource block, and wherein the 2nd and the 3rd LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions; The the 1st and the 4th LB sends the AC data, obtained by 2 rank Walsh time domain expansions.The the 5th to the 9th LB takies another frequency resource block, and wherein the 5th and the 9th LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions; The the 6th to 8 LB sends ack msg, is that 3 DFT expands in time domain with length.
Embodiment schematic diagram when Fig. 8 shows according to another embodiment of the present invention control signal under the short CP pattern and accounts for 4 LB and reference signal and account for 5 LB.In Fig. 8, a subframe has 9 LB.The the 1st to the 5th LB takies a frequency resource block, and wherein the 1st and the 5th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The the 2nd to 4 LB sends the reference signal of ACK, is that 3 DFT expands in time domain with length.The the 6th to the 9th LB takies another frequency resource block, and wherein the 6th and the 9th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The the 7th to 8 LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions.User's largest packet number is 2.
Embodiment schematic diagram when Fig. 9 shows according to another embodiment of the present invention control signal under the short CP pattern and accounts for 4 LB and reference signal and account for 5 LB.In Fig. 9, a subframe has 9 LB.The the 1st to the 5th LB takies a frequency resource block, and wherein the 1st and the 5th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The the 2nd to 4 LB sends the reference signal of ACK, is that 3 DFT expands in time domain with length.The the 6th to the 9th LB takies another frequency resource block, and wherein the 6th and the 9th LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions; The the 7th and the 8th LB sends ack msg, obtained by 2 rank Walsh time domain expansions.
Embodiment schematic diagram when Figure 10 shows according to another embodiment of the present invention control signal under the short CP pattern and accounts for 5 LB and reference signal and account for 4 LB.In Figure 10, a subframe has 9 LB.The the 1st to the 5th LB takies a frequency resource block, and wherein the 1st and the 5th LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions; The the 2nd to 4 LB sends ack msg, is that 3 DFT expands in time domain with length.The the 6th to the 9th LB takies another frequency resource block, and wherein the 7th and the 8th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The the 6th and the 9th LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions.
Embodiment schematic diagram when Figure 11 shows according to another embodiment of the present invention control signal under the short CP pattern and accounts for 5 LB and reference signal and account for 4 LB.In Figure 11, a subframe has 9 LB.The the 1st to the 5th LB takies a frequency resource block, and wherein the 1st and the 5th LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions; The the 2nd to 4 LB sends ack msg, is that 3 DFT expands in time domain with length.The the 6th to the 9th LB takies another frequency resource block, and wherein the 7th and the 8th LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions; The the 6th and the 9th LB sends AC data K, obtained by 2 rank Walsh time domain expansions.
Embodiment schematic diagram when Figure 12 shows according to another embodiment of the present invention control signal under the short CP pattern and accounts for 5 LB and reference signal and account for 4 LB.In Figure 12, a subframe has 9 LB.The the 1st to the 4th LB takies a frequency resource block, and wherein the 1st and the 4th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The the 2nd to 3 LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions.The the 5th to the 9th LB takies another frequency resource block, and wherein the 6th and the 7th LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions; 5th, the 8th and the 9th LB sends the AC data, is that 3 DFT expands in time domain with length.
Embodiment schematic diagram when Figure 13 shows and accounts for 4 LB and reference signal and account for 4 LB according to control signal under the long CP pattern of the embodiment of the invention.In Figure 13, a subframe has 8 LB.The the 1st to the 4th LB takies a frequency resource block, and wherein the 1st and the 4th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The the 2nd to 3 LB sends the ACK reference signal, also obtains with 2 rank Walsh time domain expansions.The the 5th to the 8th LB takies another frequency resource block, and wherein the 5th and the 8th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The the 6th and the 7th LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions.
Embodiment schematic diagram when Figure 14 shows control signal under the long according to another embodiment of the present invention CP pattern and accounts for 4 LB and reference signal and account for 4 LB.In Figure 14, a subframe has 8 LB.The the 1st to the 4th LB takies a frequency resource block, and wherein the 1st and the 4th LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions; The the 2nd to 3 LB sends ack msg, also obtains with 2 rank Walsh time domain expansions.The the 5th to the 8th LB takies another frequency resource block, and wherein the 5th and the 8th LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions; The the 6th and the 7th LB sends ack msg, obtained by 2 rank Walsh time domain expansions.
Figure 15 shows according to another embodiment of the present invention the embodiment schematic diagram when control signal and Sounding RS transmit simultaneously under the short CP pattern.In Figure 15, a subframe has 9 LB.The the 1st to the 4th LB takies a frequency resource block (being called first frequency resource block), and wherein the 1st and the 4th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The the 2nd to 3 LB sends the ACK reference signal, also obtains with 2 rank Walsh time domain expansions.The the 5th to the 8th LB takies another frequency resource block (being called second frequency resource block), and wherein the 5th and the 8th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The the 6th and the 7th LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions.The 9th LB sends the Sounding signal, and this signal not only can the data transfer bandwidth can also be measured the bandwidth of the ACK signaling of second frequency resource block of this user.
Figure 16 shows according to another embodiment of the present invention the embodiment schematic diagram when control signal and Sounding RS transmit simultaneously under the short CP pattern.In Figure 16, a subframe has 9 LB.The 1st LB sends the Sounding signal, and this signal not only can the data transfer bandwidth can also be measured the bandwidth of the ACK signaling of this first frequency resource block of user.The the 2nd to the 5th LB takies a frequency resource block (being called first frequency resource block), and wherein the 2nd and the 5th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The the 3rd to 4 LB sends the ACK reference signal, also obtains with 2 rank Walsh time domain expansions.The the 6th to the 9th LB takies another frequency resource block (being called second frequency resource block), and wherein the 6th and the 9th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The the 7th and the 8th LB sends the ACK reference signal, obtained by 2 rank Walsh time domain expansions.
Figure 17 shows the embodiment schematic diagram when control signal and Sounding RS transmit simultaneously under the long according to another embodiment of the present invention CP pattern.In Figure 17, a subframe has 8 LB.The the 1st to the 4th LB takies a frequency resource block (being called first frequency resource block), and wherein the 1st and the 4th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The the 2nd to 3 LB sends the ACK reference signal, also obtains with 2 rank Walsh time domain expansions.The the 5th to the 7th LB takies another frequency resource block (being called second frequency resource block), and wherein the 5th and the 7th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The 6th LB sends ACK reference signal, not spread spectrum.The 8th LB sends the Sounding signal, and this signal not only can the data transfer bandwidth can also be measured the bandwidth of the ACK signaling of second frequency resource block of this user.
Figure 18 shows the embodiment schematic diagram when control signal and Sounding RS transmit simultaneously under the long according to another embodiment of the present invention CP pattern.In Figure 18, a subframe has 8 LB.The 1st LB sends the Sounding signal, and this signal not only can the data transfer bandwidth can also be measured the bandwidth of the ACK signaling of second frequency resource block of this user.The the 2nd to the 4th LB takies a frequency resource block (being called first frequency resource block), and wherein the 2nd and the 4th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The 3rd LB sends the ACK reference signal, and time domain is spread spectrum not.The the 5th to the 7th LB takies another frequency resource block (being called second frequency resource block), and wherein the 5th and the 7th LB sends ack msg, obtained by 2 rank Walsh time domain expansions; The 6th LB sends ACK reference signal, not spread spectrum.
Fig. 4 is to launching illustrating of situation among the present invention to the embodiment of Figure 18, and in real system, on same running time-frequency resource, each user uses identical frame structure emission.
In a word, the present invention is under the prerequisite of keeping single carrier low peak average ratio characteristic, realized simultaneously a plurality of users' control signal transmitting, when having control signal and Sounding to launch simultaneously, realized the flexmux of Sounding signal and control signal, not only guarantee the normal transmission of Sounding, can also measure the control signal bandwidth.
The above is embodiments of the invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (13)
1. one kind is used for the control signal of communication system and the launching technique of reference signal thereof, it is characterized in that, may further comprise the steps:
With the frequency domain quadrature of regular length or time domain orthogonal or the quasiorthogonal code of quasiorthogonal code and regular length the user's that will send control signaling control signal and reference signal thereof are modulated;
All symbols of subframe are divided into a plurality of parts, send described control signal through ovennodulation by a plurality of symbols in every part, and by the described reference signal through ovennodulation of remaining a plurality of symbols transmissions in every part, wherein, by distributing different frequency domain resource to realize frequency hopping in the subframe for every part.
2. the launching technique of control signal according to claim 1 and reference signal thereof, it is characterized in that, when the control signal user had the measurement pilot frequency of transmission simultaneously, described measurement pilot frequency sent by the optional sign except the data demodulates frequency pilot sign in the described subframe.
3. the launching technique of control signal according to claim 2 and reference signal thereof is characterized in that, at the symbol that is used for sending described measurement pilot frequency, does not send described control signal user's control signal and reference signal.
4. the launching technique of control signal according to claim 1 and reference signal thereof, it is characterized in that, by control signal and the reference signal thereof of on the same-sign that is in the described subframe on the same frequency resource, distributing different time domain orthogonals or quasiorthogonal code or different frequency domain quadrature or quasiorthogonal code to launch a plurality of users to different user.
5. the launching technique of control signal according to claim 4 and reference signal thereof is characterized in that, the described frequency domain quadrature or the quasiorthogonal code that are used for the described control signal of different user and reference signal thereof are identical or different.
6. the launching technique of control signal according to claim 5 and reference signal thereof is characterized in that, the described time domain orthogonal or the quasiorthogonal code that are used for the described control signal of different user and reference signal thereof are identical or different.
7. the launching technique of control signal according to claim 6 and reference signal thereof is characterized in that, same user's the described time domain orthogonal or the quasiorthogonal code that are respectively applied to described control signal and reference signal thereof are identical or different.
8. the launching technique of control signal according to claim 7 and reference signal thereof is characterized in that, same user's the described frequency domain quadrature or the quasiorthogonal code that are respectively applied to described control signal and reference signal thereof are identical.
9. the launching technique of control signal according to claim 8 and reference signal thereof, it is characterized in that, when the length of same user's the described time domain orthogonal that is respectively applied to described control signal and reference signal thereof or quasiorthogonal code was identical, same user's the described time domain orthogonal or the quasiorthogonal code that are respectively applied to described control signal and reference signal thereof were identical or different.
10. the launching technique of control signal according to claim 9 and reference signal thereof is characterized in that, the user that will have identical time domain orthogonal or quasiorthogonal code, different frequency domain quadrature or quasiorthogonal code is divided into one group.
11. the launching technique of control signal according to claim 10 and reference signal thereof is characterized in that, has the user of not identical time domain orthogonal or quasiorthogonal code, its frequency domain quadrature or quasiorthogonal code can be identical or different.
12. the launching technique of control signal according to claim 11 and reference signal thereof is characterized in that, the user who is divided organizes number to be depended on for all users' described time domain orthogonal or the minimum length of quasiorthogonal code.
13. the launching technique of control signal according to claim 12 and reference signal thereof is characterized in that, described method is applicable to broadband single carrier system.
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| CN101540633B (en) * | 2008-03-21 | 2012-10-10 | 电信科学技术研究院 | Method, system and base station for downlink transmission |
| WO2009157414A1 (en) * | 2008-06-23 | 2009-12-30 | 株式会社 エヌ・ティ・ティ・ドコモ | Base station device, user equipment, and communication control method |
| US8811371B2 (en) | 2008-09-23 | 2014-08-19 | Qualcomm Incorporated | Transmit diversity scheme for uplink data transmissions |
| US8885541B2 (en) * | 2009-08-04 | 2014-11-11 | Qualcomm Incorporated | Extension of UE-RS to DWPTS |
| EP2489165A2 (en) * | 2010-02-17 | 2012-08-22 | ZTE Corporation | Methods and systems for csi-rs transmission in lte-advance systems |
| CN101902301B (en) * | 2010-08-12 | 2018-11-20 | 中兴通讯股份有限公司 | Upstream control signaling sends, the bearing method and device of uplink demodulation reference signal |
| CN102316068A (en) * | 2011-09-21 | 2012-01-11 | 中兴通讯股份有限公司 | Transmission method for control signalings and system |
| US10284403B2 (en) * | 2014-11-24 | 2019-05-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Transmission of a signal according to a single- or multi-carrier modulation scheme |
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