CN101917380B - The sending method of downlink and uplink control signals through multi-antenna system and device - Google Patents
The sending method of downlink and uplink control signals through multi-antenna system and device Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
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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
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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Abstract
The invention discloses the sending method of a kind of downlink and uplink control signals through multi-antenna system and device, wherein, the sending method of this downlink and uplink control signals through multi-antenna system includes: terminal obtains by the time domain orthogonal resource of index instruction; Above-mentioned terminal uses different above-mentioned time domain orthogonal resources to send upstream control signaling on different antennas. The invention solves the uplink control signaling problem that have employed Physical Uplink Control Channel form 3 that cannot send under multiaerial system in prior art, and then reached can accurately report the uplink control signaling technique effect adopting Physical Uplink Control Channel form 3.
Description
Technical field
The present invention relates to the communications field, in particular to sending method and the device of a kind of downlink and uplink control signals through multi-antenna system.
Background technology
LTE (LongTermEvolution, Long Term Evolution) system is the essential planning of third generation partnership, Fig. 1 illustrates the structural representation of basic frame structure in LTE system, as shown in Figure 1, frame structure is divided into radio frames, field, subframe, time slot and four grades of symbol, wherein, the length of one radio frames is 10ms, one radio frames is made up of two fields, the length of each field is 5ms, and a field is made up of 5 subframes, and the length of each subframe is 1ms, one subframe is made up of two time slots, and the length of each time slot is 0.5ms.
When LTE system adopts conventional cyclic prefix, time slot comprises the uplink/downlink symbol that 7 length is 66.7us, and wherein, the circulating prefix-length of first symbol is 5.21us, and the circulating prefix-length of other 6 symbols is 4.69us.
When LTE system adopts extended cyclic prefix, time slot comprises the uplink/downlink symbol that 6 length is 66.7us, and wherein, the circulating prefix-length of each symbol is 16.67us.
In the descending HARQ of LTE, PDSCH (PhysicalDownlinkSharedChannel, Physical Downlink Shared Channel) ACK/NACK (Acknowledgement/NegativeAcknowledgement, correct/error response message) response message, as UE (UserEquipment, terminal) there is no PUSCH (PhysicalUplinkSharedChannel, Physical Uplink Shared Channel) time, it is in the upper transmission of PUCCH (PhysicalUplinkControlChannel, Physical Uplink Control Channel). LTE defines multiple PUCCHformat (format, form), including PUCCHformat1/1a/1b and format2/2a/2b, wherein format1 is used for sending the SR (SchedulingRequest of UE, dispatch request) signal, format1a and 1b is respectively intended to the ACK/NACK response message of feedback 1 bit and the ACK/NACK response message of 2 bits, and format2 is used for sending CSI (ChannelStatesInformation, channel condition information;Including CQI (ChannelQualityInformation, channel quality information), PMI (PrecodingMatrixIndicator, precoding information) and RI (RankIndication, rank indication information), format2a is used for sending the ACK/NACK response message of CSI and 1 bit, format2b is used for sending the ACK/NACK response message of CSI information and 2 bits, and format2a/2b is served only for the scene that Cyclic Prefix is conventional cyclic prefix.
In LTE system, at FDD (FrequencyDivisionDuplex, FDD) in system, owing to ascending-descending subframes is one to one, so when PDSCH only comprises a transmission block, UE to feed back the ACK/NACK response message of 1 bit, when PDSCH comprises two transmission blocks, UE to feed back the ACK/NACK response message of 2 bits, at TDD (TimeDivisionDuplex, time division duplex) in system, due to ascending-descending subframes is not one to one, that is the ACK/NACK response message that multiple descending sub frames are corresponding needs to send on the PUCCH channel of a sub-frame of uplink, the descending sub frame set that wherein sub-frame of uplink is corresponding constitutes " bundlingwindow ". the sending method of ACK/NACK response message has two kinds: one is bundling (binding method), the core concept of the method is that the ACK/NACK response message needing transmission block that each descending sub frame fed back at this sub-frame of uplink is corresponding is carried out logic and operation, if a descending sub frame has 2 transmission blocks, UE to feed back the ACK/NACK response message of 2 bits, if each subframe only one of which transmission block, UE to feed back the ACK/NACK response message of 1 bit, another kind is multiplexing (multiplexingwithchannelselection, Channel assignment) method, the core concept of the method is the different feedback states of utilize different modulation symbol on different PUCCH channels and this channel to represent descending sub frame that needs feed back at this sub-frame of uplink, if descending sub frame has multiple transmission block, carry out Channel assignment after so first the ACK/NACK that multiple transmission blocks of descending sub frame feed back being carried out logical AND (SpatialBundling) again, then use PUCCHformat1b to send.
In order to meet senior International Telecommunication Union (InternationalTelecommunicationUnion-Advanced, referred to as ITU-Advanced) requirement, senior Long Term Evolution (LongTermEvolutionAdvanced as the evolution standard of LTE, referred to as LTE-A) system needs to support bigger system bandwidth (reaching as high as 100MHz) and it needs to the existing standard of backward compatibility LTE. On the basis of existing LTE system, can be combined to obtain bigger bandwidth by the bandwidth of LTE system, this technology is called carrier aggregation (CarrierAggregation, referred to as CA) technology, this technology can improve IMT-Advance system the availability of frequency spectrum, alleviate frequency spectrum resource in short supply, and then optimize frequency spectrum resource utilization. In order to obtain higher peaks spectrum efficiency, in lte-a system, many transmission antennas of up support, consider that transmission diversity mode can improve the reliability of transmission, improve the signal to noise ratio receiving signal, so the discussion for PUCCH channel multi-antenna transmission pattern is all based on transmission diversity mode.
When LTE-A have employed carrier aggregation technology, when UE is configured with 4 downlink component carriers, UE needs to feed back the ACK/NACK of these 4 downlink component carriers.If in MIMO situation, UE needs to feed back the ACK/NACK of each code word, then, when UE is configured with 4 downlink component carriers, UE needs 8 ACK/NACK of feedback. At present about ACK/NACK response message feedback it is concluded that for the terminal of LTE-A: if could support up 4 bit ACK/NACK response message, use channel selecting method; If supporting the feedback more than 4 bit ACK/NACK response message, the method using DFT-s-OFDM structure. For the ease of describing below, it is called Physical Uplink Control Channel form 3 by this based on DFT-s-OFDM structure at this.
Inventors have discovered that in current lte-a system, it does not have be given under multiaerial system and send the uplink control signaling method that have employed Physical Uplink Control Channel form 3.
Summary of the invention
Present invention is primarily targeted at sending method and device that a kind of downlink and uplink control signals through multi-antenna system is provided, at least to solve the uplink control signaling problem that have employed Physical Uplink Control Channel form 3 that cannot send under multiaerial system in prior art.
According to an aspect of the invention, it is provided the sending method of a kind of downlink and uplink control signals through multi-antenna system, comprising: terminal obtains by the time domain orthogonal resource of index instruction; Above-mentioned terminal uses different above-mentioned time domain orthogonal resources to send upstream control signaling on different antennas.
Further, above-mentioned upstream control signaling includes: adopt confirmation/negative ACK/NACK response message and/or the channel condition information of the transmission of DFT-s-OFDM structure.
Further, above-mentioned terminal uses the different above-mentioned time domain orthogonal resource above-mentioned upstream control signalings of transmission to include on different antennas: above-mentioned terminal uses the time domain orthogonal resource of the first index instruction above-mentioned upstream control signaling to expand to current time slots for transmitting above-mentioned uplink control signaling orthogonal frequency division multiplex OFDM symbol, and uses first antenna to send; Above-mentioned terminal use second index instruction time domain orthogonal resource above-mentioned upstream control signaling is expanded in above-mentioned current time slots for transmitting above-mentioned uplink control signaling OFDM symbol, and use second antenna send.
Further, above-mentioned terminal uses the different above-mentioned time domain orthogonal resource above-mentioned upstream control signalings of transmission also to include on different antennas: above-mentioned terminal uses different time domain orthogonal resources or different frequency domain orthogonal resources to obtain the uplink demodulation reference signal on above-mentioned first antenna and the second antenna; Above-mentioned uplink demodulation reference signal is mapped to for the OFDM symbol of transmit demodulated reference signal in be transmitted corresponding with above-mentioned first antenna and the second antenna by above-mentioned terminal.
Further, above-mentioned terminal uses the different above-mentioned time domain orthogonal resource above-mentioned upstream control signalings of transmission also to include on different antennas: if need to send uplink measurement reference signal simultaneously, then above-mentioned uplink measurement reference signal is mapped to for the OFDM symbol of transmission measurement reference signal in be transmitted corresponding with above-mentioned first antenna and the second antenna by above-mentioned terminal.
Further, above-mentioned terminal obtains and is included by the time domain orthogonal resource of index instruction: above-mentioned terminal obtains above-mentioned index from received signaling; Above-mentioned terminal searches the above-mentioned time domain orthogonal resource corresponding with above-mentioned index in this locality.
Further, above-mentioned terminal obtains above-mentioned index from received signaling and includes: above-mentioned terminal obtains all required indexes by signaling; Or above-mentioned terminal obtains an index in above-mentioned all required indexes by above-mentioned signaling, and obtains other indexes in above-mentioned all required indexes by this index and predetermined deviant; Wherein, above-mentioned signaling is one below: the signaling of high-rise configuration, implicit signaling, or the signaling of display.
Further, above-mentioned time domain orthogonal resource includes one below: DFT sequence, Walsh sequence or CAZAC sequence.
Further, above-mentioned terminal uses the different above-mentioned time domain orthogonal resource above-mentioned upstream control signalings of transmission to include on different antennas: if above-mentioned terminal uses 4 antennas to send above-mentioned upstream control signaling, then realized the transmission of above-mentioned 4 antennas by 2 antennas virtualizations.
According to a further aspect in the invention, it is provided that a kind of terminal adopting multiaerial system, comprising: acquiring unit, for obtaining by the time domain orthogonal resource of index instruction; Transmitting element, for using different above-mentioned time domain orthogonal resources to send upstream control signaling on different antennas.
Further, above-mentioned transmitting element includes: the first sending module, for using the time domain orthogonal resource of the first index instruction that above-mentioned upstream control signaling is expanded to current time slots for transmitting above-mentioned uplink control signaling OFDM symbol, and first antenna is used to send; Second sending module, for use the time domain orthogonal resource of the second index instruction above-mentioned upstream control signaling expanded in above-mentioned current time slots for transmitting above-mentioned uplink control signaling OFDM symbol, and use the second antenna to send.
Further, above-mentioned transmitting element also includes: the 3rd sending module, for using different time domain orthogonal resources or different frequency domain orthogonal resources to obtain the uplink demodulation reference signal on above-mentioned first antenna and the second antenna, and above-mentioned uplink demodulation reference signal is mapped to for the OFDM symbol of transmit demodulated reference signal in be transmitted corresponding with above-mentioned first antenna and the second antenna; If need to send uplink measurement reference signal simultaneously, then above-mentioned uplink measurement reference signal is mapped to for the OFDM symbol of transmission measurement reference signal in be transmitted corresponding with above-mentioned first antenna and the second antenna.
Further, above-mentioned acquiring unit includes: acquisition module, for obtaining above-mentioned index from received signaling; Search module, for searching the above-mentioned time domain orthogonal resource corresponding with above-mentioned index in this locality.
Pass through the present invention, different antennas use different time domain orthogonal resources send the upstream control signaling adopting Physical Uplink Control Channel form 3, solve the uplink control signaling problem that have employed Physical Uplink Control Channel form 3 that cannot send under multiaerial system, and then reached can accurately report the uplink control signaling technique effect adopting Physical Uplink Control Channel form 3.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 is the schematic diagram according to frame structure basic in the LTE system of correlation technique;
Fig. 2 is a kind of preferred flow chart of the sending method of downlink and uplink control signals through multi-antenna system according to embodiments of the present invention;
Fig. 3 is the another kind of preferred flow chart of the sending method of downlink and uplink control signals through multi-antenna system according to embodiments of the present invention;
Fig. 4 is another preferred flow chart of the sending method of downlink and uplink control signals through multi-antenna system according to embodiments of the present invention;
Fig. 5 is another preferred flow chart of the sending method of downlink and uplink control signals through multi-antenna system according to embodiments of the present invention;
Fig. 6 is a kind of preferred schematic diagram of the symbol in DFT-s-OFDM structure (Physical Uplink Control Channel form 3) according to embodiments of the present invention;
Fig. 7 is the another kind of preferred schematic diagram of the symbol in DFT-s-OFDM structure (Physical Uplink Control Channel form 3) according to embodiments of the present invention;
Fig. 8 is another preferred schematic diagram of the symbol in DFT-s-OFDM structure (Physical Uplink Control Channel form 3) according to embodiments of the present invention;
Fig. 9 is another preferred schematic diagram of the symbol in DFT-s-OFDM structure (Physical Uplink Control Channel form 3) according to embodiments of the present invention;
Figure 10 is another preferred schematic diagram of the symbol in DFT-s-OFDM structure (Physical Uplink Control Channel form 3) according to embodiments of the present invention;
Figure 11 is the structural representation of the terminal of employing multiaerial system according to embodiments of the present invention.
Detailed description of the invention
Below with reference to accompanying drawing and describe the present invention in detail in conjunction with the embodiments. It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.
Embodiment 1
Fig. 2 is a kind of preferred flow chart of the sending method of downlink and uplink control signals through multi-antenna system according to embodiments of the present invention, comprising:
Step S202, terminal obtains by the time domain orthogonal resource of index instruction;
Step S204, above-mentioned terminal uses different above-mentioned time domain orthogonal resources to send upstream control signaling on different antennas.
Preferably, described upstream control signaling includes: adopt ACK (Acknowledgement confirms)/NACK (NegativeAcknowledgement, negative) response message and/or the channel condition information of the transmission of DFT-s-OFDM structure.
The upstream control signaling adopting Physical Uplink Control Channel form 3 owing to using different time domain orthogonal resources to send on different antennas, solve the uplink control signaling problem that have employed Physical Uplink Control Channel form 3 that cannot send under multiaerial system, and then reached can accurately report the uplink control signaling technique effect adopting Physical Uplink Control Channel form 3.
Preferably, Physical Uplink Control Channel form 3 can be the ascending control channel form of agreement defined.
Preferably, described terminal uses the different described time domain orthogonal resource described upstream control signalings of transmission to include on different antennas: described upstream control signaling is expanded to current time slots and is used for transmitting described uplink control signaling OFDM (OrthogonalFrequencyDivisionMultiplexing by the time domain orthogonal resource of described terminal use the first index instruction, OFDM) on symbol, and use first antenna to send; Described terminal use second index instruction time domain orthogonal resource described upstream control signaling is expanded in described current time slots for transmitting described uplink control signaling OFDM symbol, and use second antenna send.
Preferably, described terminal uses different described time domain orthogonal resource to send to adopt upstream control signaling and also include on different antennas: described terminal uses different time domain orthogonal resources or different frequency domain orthogonal resources to obtain the uplink demodulation reference signal on described first antenna and the second antenna; Described uplink demodulation reference signal is mapped to for the OFDM symbol of transmit demodulated reference signal in be transmitted corresponding with described first antenna and the second antenna by described terminal. Certainly, here, first antenna and the second antenna are an example, and above-mentioned steps goes for multiple antenna, for instance, 4 antennas.
Preferably, described terminal uses different described time domain orthogonal resource transmission upstream control signalings also to include on different antennas: if need to send uplink measurement reference signal simultaneously, described uplink measurement reference signal is mapped to for the OFDM symbol of transmission measurement reference signal in be transmitted corresponding with described first antenna and the second antenna by described terminal.
Preferably, described terminal obtains and is included by the time domain orthogonal resource of index instruction: described terminal obtains described index from received signaling; Described terminal searches the described time domain orthogonal resource corresponding with described index in this locality. Mode by this signal deployment, terminal can obtain time domain orthogonal resource more conveniently, and, concrete time domain orthogonal resource can be transmitted by signaling, and simply by signalling the index corresponding with time domain orthogonal resource, thus effectively further make use of Radio Resource, it is ensured that the correctness of the time domain orthogonal resource used.
Preferably, base station can beforehand through mutual next at respective locally configured identical mapping table with terminal, and wherein, in this mapping table, index and time domain orthogonal resource all have one-to-one relationship. In this way, when mutual, base station has only to issue the signaling carrying index without transmitting concrete time domain orthogonal resource, thus saving transfer resource, improves efficiency of transmission.
Preferably, described terminal obtains described index from received signaling and includes: described terminal obtains all required indexes by signaling; Or described terminal obtains an index in described all required indexes by described signaling, and obtains other indexes in described all required indexes by this index and predetermined deviant; Wherein, described signaling is one below: the signaling of high-rise configuration, implicit signaling, or the signaling of display.
Preferably, before the time domain orthogonal resource that described terminal obtains by index instruction, described upstream control signaling being carried out pretreatment and obtains upstream control signaling sequence, wherein, described pretreatment includes: chnnel coding, scrambling, modulation and precoding. By the pre-treatment step in the present embodiment, improve uplink control signaling transmission correctness.
Preferably, described time domain orthogonal resource includes one below: DFT sequence, Walsh sequence or CAZAC sequence. By different time domain orthogonal resources so that present invention may apply to different scenes.
Preferably, described terminal uses different described time domain orthogonal resource transmission upstream control signalings to include on different antennas: if described terminal uses 4 antennas to send described upstream control signaling, then realized the transmission of described 4 antennas by 2 antennas virtualizations.
Embodiment 2
Below for terminal 2 antenna, specifically describe uplink control signaling sending method, as it is shown on figure 3, comprising:
Step S302: the upstream control signaling needing transmission is carried out pretreatment;
Step S304: described terminal makes index of referenceUpstream control signaling sequence extension to current time slots for transmitting n OFDM symbol of uplink control signaling, is utilized antenna 1 to send by the orthogonal resource [w (0) w (1) ... w (n-1)] of instruction; Described terminal makes index of referenceUpstream control signaling sequence extension to current time slots for transmitting n OFDM symbol of uplink control signaling, is utilized antenna 2 to send by the orthogonal resource [w (0) w (1) ... w (n-1)] of instruction;
Step S306: also need on described antenna 1 and antenna 2 send uplink demodulation reference signal, described terminal obtains the uplink demodulation reference signal in different antennae by different time domain orthogonal resources or frequency domain orthogonal resource, then, uplink demodulation reference signal is mapped to for the OFDM symbol of transmit demodulated reference signal in be transmitted corresponding with described antenna 1 and antenna 2 by described terminal respectively;
Step S308: if need simultaneously to send uplink measurement reference signal, uplink measurement reference signal is mapped to for the OFDM symbol of transmission measurement reference signal in send corresponding with described antenna 1 and antenna 2 by described terminal. If uplink measurement reference signal need not be sent simultaneously, then ignore this step.
Owing to using different time domain orthogonal resource to send upstream control signaling on 2 antennas, solve and cannot have employed Physical Uplink Control Channel form 3 under multiaerial system and send uplink control signaling problem.
Preferably, step S302 refers to and the upstream control signaling needing transmission carries out chnnel coding, scrambling, and modulation obtains upstream control signaling sequence after precoding conversion;
Preferably, the index in step S304It is that the signaling configured by high level obtains; Described orthogonal resource [w (0) w (1) ... w (n-1)] is referred to DFT sequence or Walsh sequence or CAZAC sequence or is obtained by above-mentioned sequence extension;
Embodiment 3
Below based on the scene that symbolic number is 6 in terminal 2 antenna, each time slot, specifically describe uplink control signaling sending method.
Under the scene of the present embodiment, it is assumed that adopting extended cyclic prefix, as shown in Figure 6, each slot (time slot) internal symbol number is 6; Need to send SRS; Symbol numbers shared by DMRS is 2, and continuous distribution (or is distributed on the 0th of each time slot and the 5th symbol, as shown in Figure 7), it is necessary to the upstream control signaling of transmission is o on the 2nd of each time slot and the 3rd symbol0, o1... om-1, wherein, m >=4, adopt 2 antennas to send; Orthogonal resource is the Walsh sequence shown in employing table 1, and the sequence of DMRS is
Table 1
| Sequence index | Sequence |
| 0 | [1 1 1 1] |
| 1 | [1 -1 1 -1] |
| 2 | [1 -1 -1 1] |
| 3 | [1 1 -1 -1] |
As shown in Figure 4, the uplink control signaling sending method according to the present embodiment comprises the steps:
Step S402: the described terminal upstream control signaling o to needing transmission0, o1... om-1Carry out pretreatment and obtain upstream control signaling sequence;
Step S404: described terminal makes index of referenceUpstream control signaling sequence extension to this time slot for transmitting 4 OFDM symbol of uplink control signaling, is sent by the orthogonal resource [1111] of instruction with antenna 1; Described terminal makes index of referenceUpstream control signaling sequence extension to this time slot for transmitting 4 OFDM symbol of uplink control signaling, is sent by the orthogonal resource [1-11-1] of instruction with antenna 2.
Step S406: described terminal adopts one of following several ways to generate the uplink demodulation reference signal in different antennae;
On described antenna 1 on DMRS symbol send be respectively On antenna 2, transmission isWherein n=0,1 ..., 11;
On described antenna 1 on DMRS symbol send be respectively On antenna 2, transmission isWherein n=0,1 ..., 11.
It is to say, the uplink demodulation reference signal on each antenna is mapped to for the OFDM symbol of transmit DMRS in be transmitted corresponding with each antenna by described terminal respectively.
Step S408: SRS is mapped to being transmitted in the OFDM symbol transmit SRS of described antenna 1 and antenna 2 correspondence by described terminal.
Embodiment 4
Below based on the scene that symbolic number is 7 in terminal 2 antenna, each time slot, specifically describe uplink control signaling sending method.
Under the scene of the present embodiment, it is assumed that adopting conventional cyclic prefix, each slot internal symbol number is 7; SRS need not be sent; Symbol numbers shared by DMRS is 2, and continuous distribution is on the 2nd of each time slot and the 3rd symbol, and as shown in Figure 8 (or it is distributed on the 1st of each time slot and the 5th symbol, as shown in Figure 9;Or respectively on the 0th of each time slot and the 6th symbol, as shown in Figure 10), it is necessary to the upstream control signaling of transmission is o0, o1... om-1, wherein, m >=4, adopt 2 antennas to send; Orthogonal resource is the DFT sequence shown in employing table 2, and the sequence of DMRS is
Table 2
| Sequence index | Sequence |
| 0 | [1 1 1 1 1] |
| 1 | [1ej8π/5ej6π/5ej4π/5ej2π/5] |
| 2 | [1ej6π/5ej2π/5ej8π/5ej4π/5] |
| 3 | [1ej4π/5ej8π/5ej2π/5ej6π/5] |
| 4 | [1ej2π/5ej4π/5ej6π/5ej8π/5] |
As it is shown in figure 5, the uplink control signaling sending method according to the present embodiment comprises the steps:
Step S502: the described terminal upstream control signaling o to needing transmission0, o1... om-1Carry out pretreatment and obtain upstream control signaling sequence;
Step S504: described terminal makes index of referenceUpstream control signaling sequence extension to this time slot for transmitting 5 OFDM symbol of uplink control signaling, is utilized antenna 1 to send by the orthogonal resource [11111] of instruction; Described terminal makes index of referenceOrthogonal resource [the 1e of instructionj8π/5ej6π/5ej4π/5ej2π/5] by upstream control signaling sequence extension to this time slot for transmitting 5 OFDM symbol of uplink control signaling, utilize antenna 2 to send.
Step S506: described terminal adopts one of following several ways to generate the uplink demodulation reference signal in different antennae;
On described antenna 1 on DMRS symbol send be respectively On antenna 2, transmission isWherein n=0,1 ..., 11;
On described antenna 1 on DMRS symbol send be respectively On antenna 2, transmission isWherein n=0,1 ..., 11;
It is to say, the uplink demodulation reference signal on each antenna is mapped to for the OFDM symbol of transmit DMRS in be transmitted corresponding with each antenna by described terminal respectively.
Embodiment 5
Present invention also offers a kind of terminal adopting multiaerial system, it can use the sending method in above-described embodiment 1-4 to send upstream control signaling.
Figure 11 is the structural representation of the terminal of employing multiaerial system according to embodiments of the present invention, comprising: acquiring unit 1102, for obtaining by the time domain orthogonal resource of index instruction; Transmitting element 1104, is connected with acquiring unit 1102, for using different described time domain orthogonal resources to send upstream control signaling on different antennas.
Preferably, described upstream control signaling includes: adopt ACK/NACK response message and/or the channel condition information of the transmission of DFT-s-OFDM structure.
The upstream control signaling adopting Physical Uplink Control Channel form 3 owing to using different time domain orthogonal resources to send on different antennas, solve the uplink control signaling problem that have employed Physical Uplink Control Channel form 3 that cannot send under multiaerial system, and then reached can accurately report the uplink control signaling technique effect adopting Physical Uplink Control Channel form 3.
Preferably, transmitting element 1104 includes: the first sending module 11041, for using the time domain orthogonal resource of the first index instruction that described upstream control signaling is expanded to current time slots for transmitting described uplink control signaling OFDM symbol, and first antenna is used to send the OFDM symbol extended; Second sending module 11042, for use the time domain orthogonal resource of the second index instruction described upstream control signaling expanded in described current time slots for transmitting described uplink control signaling OFDM symbol, and use the second antenna to send the OFDM symbol extended.
Preferably, transmitting element 1104 also includes: the 3rd sending module 11043, for using different time domain orthogonal resources or different frequency domain orthogonal resources to obtain the uplink demodulation reference signal on described first antenna and the second antenna, and described uplink demodulation reference signal is mapped to for the OFDM symbol of transmit demodulated reference signal in be transmitted corresponding with described first antenna and the second antenna;If need to send uplink measurement reference signal simultaneously, then described uplink measurement reference signal is mapped to for the OFDM symbol of transmission measurement reference signal in be transmitted corresponding with described first antenna and the second antenna. By using different time domain orthogonal resources, terminal can more effectively reporting uplink demodulated reference signal.
Preferably, acquiring unit 1102 includes: acquisition module 11021, for obtaining described index from received high-level signaling; Search module 11022, be connected with acquisition module 11021, for searching the described time domain orthogonal resource corresponding with described index in this locality. Mode by this signal deployment, terminal can obtain time domain orthogonal resource more conveniently, and, concrete time domain orthogonal resource can be transmitted by signaling, and simply by signalling the index corresponding with time domain orthogonal resource, thus effectively further make use of Radio Resource, it is ensured that the correctness of the time domain orthogonal resource used.
Further, base station can beforehand through mutual next at respective locally configured identical mapping table with terminal, and wherein, in this mapping table, index and time domain orthogonal resource all have one-to-one relationship. In this way, when mutual, base station has only to issue the signaling carrying index without transmitting concrete time domain orthogonal resource, thus saving transfer resource, improves efficiency of transmission.
Preferably, before the time domain orthogonal resource that described terminal obtains by index instruction, described upstream control signaling being carried out pretreatment and obtains upstream control signaling sequence, wherein, described pretreatment includes: chnnel coding, scrambling, modulation and precoding.
Preferably, described time domain orthogonal resource includes one below: DFT sequence, Walsh sequence or CAZAC sequence.
Preferably, described terminal uses different described time domain orthogonal resources row physically to control to send the upstream control signaling adopting Physical Uplink Control Channel form 3 on channel on different antennas.
Further, transmitting element 1104 in above-mentioned terminal uses the different above-mentioned time domain orthogonal resource above-mentioned upstream control signalings of transmission to include on different antennas: if above-mentioned terminal uses 4 antennas to send above-mentioned upstream control signaling, then realized the transmission of above-mentioned 4 antennas by 2 antennas virtualizations.
Obviously, those skilled in the art should be understood that, each module of the above-mentioned present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or it is distributed on the network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, can be stored in storage device is performed by calculation element, and in some cases, shown or described step can be performed with the order being different from herein, or they are fabricated to respectively each integrated circuit modules, or the multiple modules in them or step are fabricated to single integrated circuit module realize. so, the present invention is not restricted to the combination of any specific hardware and software.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (12)
1. the sending method of a downlink and uplink control signals through multi-antenna system, it is characterised in that including:
Terminal obtains by the time domain orthogonal resource of index instruction;
Described terminal uses different described time domain orthogonal resources to send upstream control signaling on different antennas;
Wherein, described upstream control signaling includes: adopt confirmation/negative ACK/NACK response message and/or the channel condition information of the transmission of DFT-s-OFDM structure.
2. method according to claim 1, it is characterised in that described terminal uses the different described time domain orthogonal resource described upstream control signalings of transmission to include on different antennas:
Described terminal uses the time domain orthogonal resource of the first index instruction described upstream control signaling to expand to current time slots for transmitting described uplink control signaling orthogonal frequency division multiplex OFDM symbol, and uses first antenna to send;
Described terminal use second index instruction time domain orthogonal resource described upstream control signaling is expanded in described current time slots for transmitting described uplink control signaling OFDM symbol, and use second antenna send.
3. method according to claim 2, it is characterised in that described terminal uses the different described time domain orthogonal resource described upstream control signalings of transmission also to include on different antennas:
Described terminal uses different time domain orthogonal resources or different frequency domain orthogonal resources to obtain the uplink demodulation reference signal on described first antenna and the second antenna;
Described uplink demodulation reference signal is mapped to for the OFDM symbol of transmit demodulated reference signal in be transmitted corresponding with described first antenna and the second antenna by described terminal.
4. method according to claim 2, it is characterised in that described terminal uses the different described time domain orthogonal resource described upstream control signalings of transmission also to include on different antennas:
If need to send uplink measurement reference signal simultaneously, then described uplink measurement reference signal is mapped to for the OFDM symbol of transmission measurement reference signal in be transmitted corresponding with described first antenna and the second antenna by described terminal.
5. method according to claim 1, it is characterised in that described terminal obtains and included by the time domain orthogonal resource of index instruction:
Described terminal obtains described index from received signaling;
Described terminal searches the described time domain orthogonal resource corresponding with described index in this locality.
6. method according to claim 5, it is characterised in that described terminal obtains described index from received signaling and includes:
Described terminal obtains all required indexes by signaling; Or
Described terminal obtains an index in described all required indexes by described signaling, and obtains other indexes in described all required indexes by this index and predetermined deviant;
Wherein, described signaling is one below: the signaling of high-rise configuration, implicit signaling, or the signaling of display.
7. method according to any one of claim 1 to 6, it is characterised in that described time domain orthogonal resource includes one below: DFT sequence, Walsh sequence or CAZAC sequence.
8. method according to any one of claim 1 to 6, it is characterised in that described terminal uses the different described time domain orthogonal resource described upstream control signalings of transmission to include on different antennas:
If described terminal uses 4 antennas to send described upstream control signaling, then realized the transmission of described 4 antennas by 2 antenna virtualizations.
9. the terminal adopting multiaerial system, it is characterised in that including:
Acquiring unit, for obtaining by the time domain orthogonal resource of index instruction;
Transmitting element, for using different described time domain orthogonal resources to send upstream control signaling on different antennas;
Wherein, described upstream control signaling includes: adopt confirmation/negative ACK/NACK response message and/or the channel condition information of the transmission of DFT-s-OFDM structure.
10. terminal according to claim 9, it is characterised in that described transmitting element includes:
First sending module, for using the time domain orthogonal resource of the first index instruction that described upstream control signaling is expanded to current time slots for transmitting described uplink control signaling OFDM symbol, and uses first antenna to send;
Second sending module, for use the time domain orthogonal resource of the second index instruction described upstream control signaling expanded in described current time slots for transmitting described uplink control signaling OFDM symbol, and use the second antenna to send.
11. terminal according to claim 10, it is characterised in that described transmitting element also includes:
3rd sending module, for using different time domain orthogonal resources or different frequency domain orthogonal resources to obtain the uplink demodulation reference signal on described first antenna and the second antenna, and described uplink demodulation reference signal is mapped to for the OFDM symbol of transmit demodulated reference signal in be transmitted corresponding with described first antenna and the second antenna; If need to send uplink measurement reference signal simultaneously, then described uplink measurement reference signal is mapped to for the OFDM symbol of transmission measurement reference signal in be transmitted corresponding with described first antenna and the second antenna.
12. terminal according to claim 9, it is characterised in that described acquiring unit includes:
Acquisition module, for obtaining described index from received signaling;
Search module, for searching the described time domain orthogonal resource corresponding with described index in this locality.
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| CN201010258985.XA CN101917380B (en) | 2010-08-16 | 2010-08-16 | The sending method of downlink and uplink control signals through multi-antenna system and device |
| PCT/CN2011/070079 WO2012022128A1 (en) | 2010-08-16 | 2011-01-07 | Uplink control signaling transmission method and device for multi-antenna system |
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| CN201010258985.XA CN101917380B (en) | 2010-08-16 | 2010-08-16 | The sending method of downlink and uplink control signals through multi-antenna system and device |
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| CN101917380B (en) * | 2010-08-16 | 2016-06-15 | 中兴通讯股份有限公司 | The sending method of downlink and uplink control signals through multi-antenna system and device |
| CN102307082B (en) * | 2011-09-28 | 2014-03-19 | 电信科学技术研究院 | Transmission method and device of uplink control signaling |
| ES2890703T3 (en) | 2016-12-23 | 2022-01-21 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Data transmission method and apparatus |
| CN109327292B (en) * | 2017-07-31 | 2021-08-03 | 普天信息技术有限公司 | Downlink reference signal resource allocation method and device |
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| CN101674162A (en) * | 2009-09-29 | 2010-03-17 | 中兴通讯股份有限公司 | Method and device for scrambling data of physical uplink control channel in multi-antenna system |
| CN101686108A (en) * | 2008-09-22 | 2010-03-31 | 三星电子株式会社 | Method for transmitting information on multiple channels by using multi-antenna |
| CN101741462A (en) * | 2009-12-14 | 2010-06-16 | 中兴通讯股份有限公司 | Method for processing demodulation reference signal dynamic cyclic shift parameters |
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| CN101651525B (en) * | 2008-08-15 | 2012-08-22 | 富士通株式会社 | Transmission resource allocation method, feedback method and processing method for response signals |
| CN101540631B (en) * | 2009-04-27 | 2014-03-12 | 中兴通讯股份有限公司 | Multi-antenna sending method and device for measuring reference signal |
| CN101917380B (en) * | 2010-08-16 | 2016-06-15 | 中兴通讯股份有限公司 | The sending method of downlink and uplink control signals through multi-antenna system and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101686108A (en) * | 2008-09-22 | 2010-03-31 | 三星电子株式会社 | Method for transmitting information on multiple channels by using multi-antenna |
| CN101674162A (en) * | 2009-09-29 | 2010-03-17 | 中兴通讯股份有限公司 | Method and device for scrambling data of physical uplink control channel in multi-antenna system |
| CN101741462A (en) * | 2009-12-14 | 2010-06-16 | 中兴通讯股份有限公司 | Method for processing demodulation reference signal dynamic cyclic shift parameters |
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| CN101917380A (en) | 2010-12-15 |
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