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CN110168993A - A kind of method and terminal sending uplink signal - Google Patents

A kind of method and terminal sending uplink signal Download PDF

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Publication number
CN110168993A
CN110168993A CN201780082595.1A CN201780082595A CN110168993A CN 110168993 A CN110168993 A CN 110168993A CN 201780082595 A CN201780082595 A CN 201780082595A CN 110168993 A CN110168993 A CN 110168993A
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China
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symbol
control signaling
reference signal
upstream control
terminal
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CN201780082595.1A
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CN110168993B (en
Inventor
刘云
王键
王达
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present embodiments relate to a kind of upload control method and terminals.This method comprises: terminal sends subframe or time slot, the subframe or time slot include reference signal and upstream control signaling, and the reference signal is transmitted in a time multiplexed way with upstream control signaling.Wherein, the subframe or time slot are one or two.The embodiment of the present invention is realized through a small amount of symbol transmission upstream control signaling, suitable for communication system, is particularly suitable in 5G NR.

Description

A kind of method and terminal sending uplink signal Technical field
The present embodiments relate to field of communication technology more particularly to a kind of methods and terminal for sending uplink signal.
Background technique
In past nearly 10 years, long term evolution (Long Term Evolution, LTE) standard that 3GPP tissue proposes is widely used by the whole world, is referred to as forth generation (4Generation, 4G) communication technology.Such as, China Mobile, China Unicom, China Telecom, 4G LTE time division duplex (Time Division Duplexing has all been respectively adopted,) and frequency division duplex (Frequency Division Duplexing TDD, FDD) the transmission technology of mode, and the convenient and fast mobile network service of high speed is provided for users.
In LTE system, the dispatching method of upload control transmission mode, as shown in Figure 1.It is divided into two sections of each 0.5ms transmission in Fig. 1, in the subframe of 1ms in the time domain, the position transmitted is located at the two sides of entire frequency band, to improve the effect of diversity gain.Specifically, 1ms includes 14 symbols, and preceding 7 symbols are transmitted in the side of frequency band, and rear 7 symbols are transmitted in the other side of frequency band.
In LTE, the upload control transmission of multiple modes can be coexisted, as shown in Figure 2.In Fig. 2, there are many classifications for the upload control mode in LTE, and comprising several types such as 1/1a/1b or 2/2a/2b, m is frequency spectrum number.When the transmission of different classes of mode, when being transmitted such as the upstream control signaling of 1/1a/1b classification, it can be transmitted in the same frequency domain resource, and the 2/2a/2b upstream control signaling of another classification cannot be with 1/1a/1b in the same frequency-domain transmission, i.e., different classes of upstream control signaling is distributed to different user UE by the way of frequency division multiplexing and used.Here, each scheduling meeting occupies the duration of 1ms, and preceding 7 symbols in 1ms, which are located on a resource block (Resource block, RB), to be transmitted, and is located on another RB in rear 7 symbols and is transmitted.
At present, 5th generation new radio (5G New Radio, 5G NR) technology enters talking stage, 5G technology is in third generation partner program (3rd Generation Partnership Project, 3GPP) the project proposed recently in tissue is located in version 14 (release 14).
And with the further investigation of 5G technology of new generation, whether the system structure and access process having reached in original 4G LTE continue to adopt, and not yet determine at present.On the one hand, since communication system is consequent compatibility, so the new technology researched and developed later is tended to be compatible with before normalised technology.And on the other hand, since 4G LTE has existed for a large amount of existing design, if many flexibility ratios of 5G must be sacrificed in order to reach compatible, to reduce performance.So both direction is studied parallel in 3GPP tissue at present.For not considering the technical discussion group of backward compatibility, referred to as 5G NR.
During the discussion of 5G NR, many companies, which combine, proposes self-contained subframe structure, as shown in Figure 3.Self-contained subframe structure includes three parts, and first part is that downlink controls (DL control), for telling how user equipment (User Equipment, UE) resource configures.Second part is the part data (data), and downlink data or UE the resource transmission upstream data that upload control is distributed before can be transmitted by the node B (evolved NodeB, eNB) of evolution.Part III is upload control (UL control), on the resource, eNB can reply affirmative acknowledgement (ACK) (Acknowledgement to downlink data before,) or negative acknowledge (Negative Acknowledgement ACK, NACK), or transmission uplink channel status information (Channel State Information, CSI), to assist the subsequent scheduling of eNB to use.In some cases, upload control part is occupied by upstream data part.To distinguish different classes of subframe, the self-contained subframe for transmitting downlink data is referred to as self-contained subframe based on downlink, and the self-contained subframe for transmitting upstream data is referred to as the self-contained subframe based on uplink.
In the self-contained subframe based on downlink, eNB tells UE, eNB can be in which transmitted over resources downlink datas；And then, in downlink control After end of transmission processed, downlink data is transmitted；Downlink data transmission finishes, and by a protection interval (Guard Period, GP), UE replys ACK or NACK according to the result of decoding downlink data.In the self-contained subframe based on uplink, in two kinds of situation: when the entire subframe remaining time is distributed on UE transmission upstream data by eNB, UE carries out transmitting uplink data after GP, until the subframe terminates；Another situation, eNB only distribute data portion for UE uplink, at this point, UE transmits upstream control signaling, such as CSI etc. by scheduled UE according to the resource transmission upstream data distributed in upload control, and after the end of transmission after GP.5G NR causes coverage area smaller using the upload control of single symbol at present.
Compare Fig. 3 and Fig. 1 it can be seen that in Fig. 3, entire subframe only has the Part III transmission upstream control signaling at end, only accounts for the sub-fraction of entire subframe, the duration of only one possible symbol.And in Fig. 1, entire subframe is all used to transmit upstream control signaling in the time domain, and entire 1ms subframe is occupied in time domain.5G NR does not have enough time-domain symbols to apply the prior art one to transmit upstream control signaling.
To sum up, existing LTE system needs to occupy entire sub-frame transmission upstream control signaling, and the subframe designs of current 5G NR, transmits without enough time-domain symbols for uplink control signaling；And for the transmission mode of existing LTE due to needing to transmit respectively at two sections of frequency band, symbolic number is more demanding；Further, since the symbolic number of 5G NR is seldom, currently, it is also to suffer from a problem that how different users, which is multiplexed,.
Summary of the invention
The embodiment of the invention provides a kind of methods and terminal for sending uplink signal, and upstream control signaling can be transmitted using a small amount of symbol by solving, and realize the multiplexing of multi-user.
In a first aspect, the embodiment of the invention provides a kind of methods for sending uplink signal.The described method includes: terminal sends subframe or time slot, the subframe or time slot include reference signal and upstream control signaling, and the reference signal is transmitted in a time multiplexed way with upstream control signaling, and the subframe or time slot are one or two.
Second aspect, the embodiment of the invention provides a kind of terminals.The terminal includes determination unit and transmission unit.The determination unit is used to determine the structure of subframe or time slot, and the subframe or time slot include reference signal and upstream control signaling, and the reference signal is transmitted in a time multiplexed way with upstream control signaling；Wherein, the subframe or time slot are one or two.The transmission unit is for sending the subframe or time slot.
The embodiment of the present invention cascades former and later two time slots or subframe by transmitting in a time multiplexed way to reference signal and upstream control signaling, to provide more time-domain resources.In addition, the embodiment of the present invention by by reference signal from upstream control signaling in different symbol transmissions, to reduce papr.
In one example, the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically: the subframe or time slot include the first symbol and the second symbol, reference signal described in first symbol transmission, upstream control signaling described in second symbol transmission；First symbol and second symbol are in two adjacent subframes or time slot.
In one example, the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically: the subframe or time slot include the first symbol and the second symbol, reference signal described in first symbol transmission, upstream control signaling described in second symbol transmission；First symbol and second symbol are in same subframe or time slot, and first symbol is adjacent with second symbol.
In one example, the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically: in the first band of two symbols of the first time slot, the first reference signal and the first uplink control signal are transmitted respectively；In the second band on two symbols of the second time slot, the second reference signal and the second upstream control signaling are transmitted respectively；The first band is different from the second band.
In one example, the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically: in the first band of two symbols of the first subframe, the first reference signal and the first uplink control signal are transmitted respectively；In the second band on two symbols of the second subframe, the second reference signal and the second upstream control signaling are transmitted respectively；The first band is different from the second band.
In one example, the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically: by the subframe or when Two symbols of gap transmit two upstream control signalings respectively, and described two upstream control signalings are transmitted on described two symbols using code point mode.
In one example, the reference signal and/or the upstream control signaling are spread using sequence；The sequence is the sequence of quadrature phase shift keying QPSK composition, one in Zadoff-Chu sequence.
In one example, the uplink transmission information is two adjacent time slots or two adjacent subframes.
In one example, the reference signal is DMRS.
The third aspect, the embodiment of the invention provides a kind of methods for sending uplink signal.The described method includes: terminal sends subframe or time slot, the subframe or time slot include reference signal and upstream control signaling, and the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling.
Fourth aspect, the embodiment of the invention provides a kind of terminals.The terminal includes determination unit and transmission unit.The determination unit is used to determine the structure of subframe or time slot, and the subframe or time slot include reference signal and upstream control signaling, and the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling.The transmission unit is for sending the subframe or time slot.
In one example, the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling, specifically: the subframe or time slot include the first symbol and the second symbol, reference signal described in frequency division transmission and the upstream control signaling on first symbol, with the transmission mode of first symbol on second symbol, the reference signal and the upstream control signaling are transmitted in repetition.
In one example, the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling, specifically: by including multiple Physical Resource Block PRB in a symbol of the subframe or time slot, pass through reference signal described in each PRB frequency division transmission in the multiple PRB and the upstream control signaling.
In one example, the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling, specifically: multiple symbols in the subframe or time slot respectively include a Physical Resource Block PRB, and each PRB discrete distribution on frequency domain, pass through reference signal described in each PRB frequency division transmission and the upstream control signaling.
In one example, the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling, specifically: the subframe or time slot include the first symbol and the second symbol, the upstream control signaling transmitted on first symbol and the upstream control signaling transmitted on second symbol, frequency domain distribution are different.
5th aspect, the embodiment of the invention provides a kind of methods for sending uplink signal.The described method includes: first terminal sends the first symbol, first symbol includes the first reference signal, and the resource that occupies of first reference signal belongs to the resource that the second reference signal of second terminal occupies, first reference signal is orthogonal with second reference signal or code division multiplexing；First terminal sends the second symbol, and second symbol includes the first upstream control signaling, and second symbol is different from first symbol.
6th aspect, the embodiment of the invention provides a kind of first terminals.The terminal includes the first transmission unit and the second transmission unit.First transmission unit, for sending the first symbol, first symbol includes the first reference signal, and the resource that first reference signal occupies belongs to the resource that the second reference signal of second terminal occupies, and first reference signal is orthogonal with second reference signal or code division multiplexing.Second transmission unit, for sending the second symbol, second symbol includes the first upstream control signaling, and second symbol is different from first symbol.
In one example, the second upstream control signaling on first symbol is also transmitted by second terminal.
7th aspect, the embodiment of the invention provides a kind of methods for sending uplink signal.The described method includes: first terminal sends the first symbol, first symbol includes the first reference signal；First terminal sends the second symbol, second symbol includes the first upstream control signaling, and the resource that occupies of the first upstream control signaling of the first terminal belongs to the resource that the second reference signal of second terminal occupies, the first upstream control signaling of the first terminal and the second reference signal of the second terminal is orthogonal or code division multiplexing；First symbol is different from second symbol.
Eighth aspect, the embodiment of the invention provides a kind of first terminals.The first terminal includes the first transmission unit and the second transmission unit.First transmission unit includes the first reference signal for sending the first symbol, first symbol.Second transmission unit, for sending the second symbol, second symbol includes the first upstream control signaling, and the resource that occupies of the first upstream control signaling of the first terminal belongs to the resource that the second reference signal of second terminal occupies, the first upstream control signaling of the first terminal and the second reference signal of the second terminal is orthogonal or code division multiplexing；And first symbol is different from second symbol.
In one example, the third reference signal on first symbol and the second upstream control signaling are also transmitted by the second terminal.
9th aspect, the embodiment of the invention provides a kind of methods for sending uplink signal.The described method includes: first terminal sends the first symbol, first symbol includes the first reference signal, and the resource that occupies of the first reference signal of the first terminal belongs to the resource that the first upstream control signaling of second terminal occupies, the first reference signal of the first terminal and the first upstream control signaling of the second terminal is orthogonal or code division multiplexing.
Tenth aspect, the embodiment of the invention provides a kind of first terminals.The first terminal includes determination unit and transmission unit.The determination unit is used to determine the structure of subframe or time slot, and the subframe or time slot include the first symbol.The transmission unit is for sending first symbol, first symbol includes the first reference signal, and the resource that occupies of the first reference signal of the first terminal belongs to the resource that the first upstream control signaling of second terminal occupies, the first reference signal of the first terminal and the first upstream control signaling of the second terminal is orthogonal or code division multiplexing；Second symbol and the first symbol are different.
In one example, the second upstream control signaling of first symbol is also transmitted by the second terminal.
In one example, the second reference signal of second symbol is also transmitted by third terminal.
The embodiment of the present invention can support a small amount of symbol to send upstream control signaling, and can be realized the multiplexing of multi-user.And the embodiment of the present invention can also achieve the effect that diversity gain and single-carrier property.
Detailed description of the invention
Fig. 1 is upload control transmission mode schematic diagram in LTE；
Schematic diagram coexists for what the upload control of multiple modes in LTE was transmitted in Fig. 2；
Fig. 3 is self-contained subframe structure schematic diagram；
Fig. 4 is a kind of method flow diagram for sending uplink signal provided in an embodiment of the present invention；
(a) in Fig. 5 is a kind of subframe structure schematic diagram of time-multiplexed upload control provided in an embodiment of the present invention；
(b) in Fig. 5 is the subframe structure schematic diagram of the time-multiplexed upload control of another kind provided in an embodiment of the present invention；
(c) in Fig. 5 is the subframe structure schematic diagram of another time-multiplexed upload control provided in an embodiment of the present invention；
(d) in Fig. 5 is the subframe structure schematic diagram of another time-multiplexed upload control provided in an embodiment of the present invention；
(e) in Fig. 5 is also a kind of subframe structure schematic diagram of time-multiplexed upload control provided in an embodiment of the present invention；
(f) in Fig. 5 is the subframe structure schematic diagram of another time-multiplexed upload control provided in an embodiment of the present invention；
Fig. 6 is (d) specific implementation schematic diagram in Fig. 5 provided in an embodiment of the present invention；
Fig. 7 is another method flow diagram for sending uplink signal provided in an embodiment of the present invention；
Fig. 8 is frequency division multiplexing provided in an embodiment of the present invention and the subframe structure schematic diagram that time domain replicates；
Fig. 9 is the subframe structure schematic diagram that frequency division multiplexing provided in an embodiment of the present invention and frequency domain replicate；
Figure 10 is the subframe structure schematic diagram that frequency division multiplexing provided in an embodiment of the present invention and discrete PRB are replicated；
(a) in Figure 11 is to transmit DMRS and uplink control signaling symbolic construction schematic diagram using monadic symbols；
(b) in Figure 11 is a kind of frequency division multiplexing provided in an embodiment of the present invention and the subframe structure schematic diagram that time domain is expanded；
(a) in Figure 12 is using monadic symbols transmission DMRS and uplink control signaling symbolic construction schematic diagram；
(b) in Figure 12 is another frequency division multiplexing provided in an embodiment of the present invention and the subframe structure schematic diagram that time domain is expanded；
(c) in Figure 12 is another frequency division multiplexing provided in an embodiment of the present invention and the subframe structure schematic diagram that time domain is expanded；
Figure 13 is the method flow diagram of another transmission uplink signal provided in an embodiment of the present invention；
Figure 14 is the structure of time slot schematic diagram that a kind of two symbols provided in an embodiment of the present invention supply two terminal transmission ascending control informations；
Figure 15 is the subframe structure schematic diagram that a kind of three symbols provided in an embodiment of the present invention supply three terminal transmission ascending control informations；
Figure 16 is the subframe structure schematic diagram that a kind of three symbols provided in an embodiment of the present invention supply two terminal transmission ascending control informations；
Figure 17 is a kind of terminal structure schematic diagram provided in an embodiment of the present invention；
Figure 18 is another terminal structure schematic diagram provided in an embodiment of the present invention；
Figure 19 is another terminal structure schematic diagram provided in an embodiment of the present invention；
Figure 20 is another terminal structure schematic diagram provided in an embodiment of the present invention；
Figure 21 is also a kind of terminal structure schematic diagram provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention is described.
Fig. 4 is a kind of method schematic diagram for sending uplink signal provided in an embodiment of the present invention.
Step 410, terminal determines the structure of subframe or time slot, and the subframe or time slot include reference signal and upstream control signaling, and the reference signal is transmitted in a time multiplexed way with upstream control signaling.
Time division multiplexing mode is to control information using multiple symbol transmissions, some of symbols only transmit demodulated reference signal (Demodulated reference signal, DMRS), other symbols only transmit upstream control signaling (control information).This transmits DMRS or uplink control signaling symbol, may be from the end of a time slot, or from the end of two time slots, for details, reference can be made to six kinds of subframe structures shown in fig. 5.
It will be understood by those skilled in the art that a subframe includes two slot s lot.Fig. 5 is only to transmit DMRS or only transmit uplink control signaling symbol for the end of a time slot or two time slots.It can be from the end of a subframe or two subframes in fact, only transmitting DMRS or only transmitting uplink control signaling symbol.Specific structure is similar to Fig. 5, and difference is only that, in latter approach, the time slot 1 in Fig. 5 is subframe 1, and time slot 2 is subframe 2.It below will be to be described in detail for former mode (i.e. Fig. 5).
Fig. 5 is the subframe structure schematic diagram of time-multiplexed upload control provided by one embodiment of the present invention.
In (a) in Fig. 5, the last symbol of the last symbol of the first time slot and the second time slot is incorporated as the time-domain resource of upload control；Wherein, the last symbol of the first time slot transmits DMRS, and the last symbol of the second time slot transmits upstream control signaling.
In one example, DMRS or upstream control signaling are spread using sequence.Optionally, the sequence of use can be the sequence or Zadoff-Chu sequence of quadrature phase shift keying (Quadrature Phase Shift Keyin, QPSK) composition, so that the information of transmission meets single-carrier property.
In (b) in Fig. 5, time-domain resource of most latter two symbol merging as upload control of the last symbol of the first time slot and the second time slot；Wherein, the last symbol of the first time slot transmits DMRS, and most latter two symbol of the second time slot repeats transmission upstream control signaling or most latter two symbol of the second time slot respectively transmits different upstream control signalings.
In one example, DMRS or upstream control signaling are spread using sequence.Optionally, the sequence of use can be the sequence or Zadoff-Chu sequence of quadrature phase shift keying (Quadrature Phase Shift Keyin, QPSK) composition, so that the information of transmission meets single-carrier property.
Transmission mode shown in (b) in Fig. 5 is compared to transmission mode described in (a) in Fig. 5, due to most latter two symbol of the second time slot Different upstream control signalings can be respectively transmitted, therefore uplink control signaling capacity is expanded；Or since most latter two symbol of the second time slot repeats to transmit upstream control signaling, coverage area becomes larger.
In (c) in Fig. 5, most latter two symbol of the first time slot and time-domain resource of most latter two symbol merging as upload control of the second time slot；Wherein, the last symbol of the penultimate symbol transmission DMRS of the first time slot, the first time slot transmit upstream control signaling, most latter two symbol transmission upstream control signaling of the second time slot.
The same upstream control signaling of the repeatable transmission of transmission three symbols of uplink control signaling respectively transmits different upstream control signalings.
In one example, DMRS or upstream control signaling are spread using sequence.Optionally, the sequence of use can be the sequence or Zadoff-Chu sequence of quadrature phase shift keying (Quadrature Phase Shift Keyin, QPSK) composition, so that the information of transmission meets single-carrier property.
In (d) in Fig. 5, most latter two symbol of the first time slot and time-domain resource of most latter two symbol merging as upload control of the second time slot；Wherein, most latter two symbol transmission DMRS of the first time slot, most latter two symbol transmission upstream control signaling of the second time slot.
Due to two symbol transmission DMRS, the mode that code point can be used is distinguished.For example, base station determines that one group of terminal divides mode using [+1 ,+1] code, another group of terminal divides mode using [+1, -1] code.That is DMRS of the one group of terminal in the identical signal of the first and second symbol transmissions of first time slot；The DMRS that second group of terminal is transmitted on second symbol is that the DMRS transmitted on first symbol takes negative result.In transmission uplink control signaling time-domain resource, different code point is also respectively adopted in two groups of terminals.
In one example, DMRS or upstream control signaling are spread using sequence.Optionally, the sequence of use can be the sequence or Zadoff-Chu sequence of quadrature phase shift keying (Quadrature Phase Shift Keyin, QPSK) composition, so that the information of transmission meets single-carrier property.
In (e) in Fig. 5, most latter two symbol of first time slot and time-domain resource of most latter two symbol merging as upload control of second time slot；Wherein, most latter two symbol of first time slot transmits DMRS and upstream control signaling respectively on the first band of frequencies；Most latter two symbol of second time slot transmits DMRS and upstream control signaling respectively over a second frequency band.
The first band is different from the second band, to achieve the effect that diversity gain.
In one example, DMRS or upstream control signaling are spread using sequence.Optionally, the sequence of use can be the sequence or Zadoff-Chu sequence of quadrature phase shift keying (Quadrature Phase Shift Keyin, QPSK) composition, so that the information of transmission meets single-carrier property.
In (f) in Fig. 5, time-domain resource of most latter two symbol as upload control of the first time slot；Wherein, the last symbol of the penultimate symbol transmission DMRS of the first time slot, the first time slot transmit upstream control signaling.
In one example, DMRS or upstream control signaling are spread using sequence.Optionally, the sequence of use can be the sequence or Zadoff-Chu sequence of quadrature phase shift keying (Quadrature Phase Shift Keyin, QPSK) composition, so that the information of transmission meets single-carrier property.
Step 420, terminal sends the subframe determined by step 410 or time slot.
It should be noted that terminal can also transmit DMRS and control signaling at the end of two adjacent subframes, or in the end of subframe transmission DMRS and control signaling.Specific method transmits DMRS and control signaling at the end of two neighboring time slot (referring to a, b, c, d, e in Fig. 5), and it is identical with the method for control signaling (referring to the f in Fig. 5) in the end of time slot transmission DMRS, details are not described herein.
Step 430, base station receives carry out the corresponding symbol of DMRS of self terminal after, the content in the symbol is obtained into the channel information of terminal multiplied by corresponding frequency expansion sequence.
Step 440, after base station is connected to the corresponding symbol of upstream control signaling, by the content in the symbol multiplied by corresponding frequency expansion sequence, signal is obtained, which is obtained into upstream control signaling divided by corresponding channel information.
Below by taking the subframe structure of (d) in Fig. 5 as an example, a kind of time-multiplexed upload control method provided in an embodiment of the present invention is elaborated, referring specifically to fig. 6.
As shown in fig. 6, most latter two symbol of first time slot and time-domain resource of most latter two symbol merging as upload control of second time slot；Wherein, most latter two symbol transmission DMRS of first time slot, most latter two symbol transmission upstream control signaling of the second time slot.
In an application scenarios, there are two groups of terminals, i.e. first group of terminal UE set 1 and second group of terminal UE set 2 in Fig. 6.In first group of terminal, it is assumed that only UE1.In second group of terminal, it is assumed that only UE2.UE1 and UE2 uses identical frequency expansion sequence, is spread for example, being all made of [+1 ,+1 ,+1 ,+1] frequency expansion sequence.In addition, the frequency expansion sequence is also possible to the sequence or Zadoff-Chu sequence of QPSK composition.Fig. 6 is for [+1 ,+1 ,+1 ,+1] frequency expansion sequence.
In Fig. 6, on most latter two symbol of the first time slot, UE1 transmission DMRS signal be it is identical, UE2 transmission DMRS signal be opposite.I.e. in the first slot, the DMRS signal of penultimate symbol transmission be last symbol transmission DMRS signal multiplied by minus 1 result.Assuming that UE1 is a (0) in the control information of the second slot transmission, so on most latter two symbol of the second time slot, signal after UE1 transmission frequency expansion sequence spread spectrum information, and identical signal is transmitted on most latter two symbol of the second time slot using code point [+1 ,+1].It is assumed that UE2 is b (0) in the control information of the second slot transmission, then the signal after UE2 transmission frequency expansion sequence spread spectrum information, and opposite signal is transmitted on most latter two symbol of the second time slot using code point [+1, -1].
In receiving side, base station is after receiving the corresponding symbol of the DMRS for carrying out self terminal, by the content in the symbol multiplied by code [+1 ,+1] or [+1, -1], to isolate first group of terminal and the corresponding signal of second group of terminal.This is isolated signal respectively multiplied by corresponding frequency expansion sequence by base station, respectively obtains first group of terminal or the corresponding channel information of second group of terminal.Base station receives the corresponding symbol of upstream control signaling, by the content in the symbol multiplied by corresponding code [+1, -1], to isolate first group of terminal and the corresponding signal of second group of terminal.The signal of the separation is obtained corresponding control signal multiplied by corresponding frequency expansion sequence respectively by base station.By the control signal divided by the respective channel information obtained by step 430, to obtain upstream control signaling.
The embodiment of the present invention on different symbols by transmitting DMRS and upstream control signaling, reduce papr (Peak to Average Power Ratio, PAPR), coverage area is wider, and can be realized as uplink control signaling using seldom time-domain symbol and transmit.
Fig. 7 is another method flow diagram for sending uplink signal provided in an embodiment of the present invention.
Step 710, terminal determines the structure of subframe or time slot, and the subframe or time slot include reference signal and upstream control signaling, and the reference signal and upstream control signaling are transmitted in a manner of frequency division multiplexing.
In one example, the reference signal of the embodiment of the present invention and upstream control signaling transmit in such a way that frequency division multiplexing and time domain replicate, referring to Fig. 8-Figure 10.To improve coverage area.
In another example, upstream control signaling transmits in such a way that frequency division multiplexing and time domain are expanded in the reference signal of the embodiment of the present invention, referring to Figure 11-Figure 12.
Step 720, terminal sends the subframe determined by step 710 or time slot.
Step 730, base station receives carry out the corresponding symbol of DMRS of self terminal after, the content in the symbol is obtained into the channel information of terminal multiplied by corresponding frequency expansion sequence.
Step 740, after base station is connected to the corresponding symbol of upstream control signaling, by the content in the symbol multiplied by corresponding frequency expansion sequence, signal is obtained, which is obtained into upstream control signaling divided by corresponding channel information.
It is explained in detail below.
Fig. 8 is the subframe structure schematic diagram of a kind of frequency division multiplexing provided in an embodiment of the present invention and time domain duplication.
It should be noted that Fig. 8 shows the subframe structure of two adjacent time slots.In fact, being also possible to the structure of two adjacent subframes, the embodiment of the present invention defines not to this.Below by by taking two adjacent structure of time slot shown in Fig. 8 as an example, it is illustrated.
As shown in figure 8, the last one or most latter two symbol combination in two time slots become transmission uplink control signaling time-domain resource.Upload control or DMRS signal are transmitted in different sub-carrier on every symbol respectively, as shown in figure 8, white portion is subcarrier shared by DMRS, slanted bar part is subcarrier shared by upstream control signaling.On different symbols, the signal transmitted be some symbol repetition or some symbol multiplied by a phase bit result.
In one example, the combination of the phase is one group of orthogonal code, which can be used for different symbols, to improve capacity.For example, the orthogonal code that can be used is [1,1,1], [1, ej2π/3,e-j2π/3]、[1,e-j2π/3,ej2π/3]。
Three groups of terminals are divided into three groups, corresponding orthogonal code is [1,1,1] on three symbols by first group of terminal therein, and second group of terminal corresponding orthogonal code on three symbols is [1, ej2π/3,e-j2π/3], third group terminal corresponding orthogonal code on three symbols is [1, e-j2π/3,ej2 π/3]。
The signal that first group of terminal is transmitted on first symbol, copy transmissions are on second and third symbol in the time domain.The signal that second group of terminal is transmitted on first symbol, is replicated and multiplied by the corresponding corresponding phase of orthogonal code, as what is transmitted on second symbol is multiplied by ej2π /3Result.What is transmitted on third symbol is multiplied by e-j2π/3Result.
In receiving side, received signal is separated out the corresponding signal of one group of terminal multiplied by orthogonal code division respectively by base station.Then the channel information of this group of terminal is obtained by the corresponding signal of this group of terminal multiplied by corresponding frequency expansion sequence according to the corresponding subcarrier of DMRS.Signal on the corresponding subcarrier of upstream control signaling is obtained upstream control signaling divided by corresponding channel information by base station.Optionally, if upstream control signaling is spread on sub-carriers, by the signal on the subcarrier multiplied by corresponding frequency expansion sequence, later again divided by corresponding channel information, to obtain upstream control signaling.
Fig. 9 is the subframe structure schematic diagram of a kind of frequency division multiplexing provided in an embodiment of the present invention and frequency domain duplication.
It should be noted that Fig. 9 shows the subframe structure of two adjacent time slots.In fact, being also possible to the structure of two adjacent subframes, the embodiment of the present invention defines not to this.Below by by taking two adjacent structure of time slot shown in Fig. 9 as an example, it is illustrated.
As shown in figure 9, the last symbol in two time slots is combined into the time-domain resource of transmitting uplink control information.Upstream control signaling or DMRS signal are transmitted in different sub-carrier on every symbol respectively, white portion is subcarrier shared by DMRS, and slanted bar part is subcarrier shared by upstream control signaling.
Occupy two PRB in a frequency domain, this two PRB can be located at the two sides of entire frequency band, as in Fig. 9 marked as k, and the PRB marked as N-k；Wherein, N is the PRB sum of the entire frequency band of a symbol.Label mode is successively label, or the successively label from high frequency to low frequency from low to high.On distinct symbols, the signal transmitted be some symbol repetition or some symbol multiplied by a phase bit result.
In one example, the phase combination is at one group of orthogonal code, and adoptable orthogonal code is [1,1], [1, -1], thus to improve capacity.
In receiving side, received signal respectively multiplied by orthogonal code, is isolated one group of terminal, the corresponding subcarrier of DMRS is then obtained the channel information of this group of terminal multiplied by corresponding frequency expansion sequence by base station.Signal on the corresponding subcarrier of upstream control signaling is obtained upstream control signaling divided by corresponding channel information by base station.Optionally, if spread on sub-carriers in upstream control signaling, by the signal on the corresponding subcarrier of upstream control signaling multiplied by frequency expansion sequence, then again divided by and corresponding channel information, to obtain upstream control signaling.
Figure 10 is the subframe structure schematic diagram of frequency division multiplexing provided in an embodiment of the present invention and discrete PRB duplication.
It should be noted that the subframe structure in Figure 10 shows the subframe structure of two adjacent time slots.In fact, being also possible to adjacent Two subframes structure, the embodiment of the present invention defines not to this.Below by by taking two adjacent structure of time slot shown in Figure 10 as an example, it is illustrated.
As shown in Figure 10, the time-domain resource in the last symbol or most latter two symbol combination of two time slots as transmitting uplink control information.Upstream control signaling or DMRS signal are transmitted in different sub-carrier on every symbol respectively, white portion is subcarrier shared by DMRS, and slanted bar part is subcarrier shared by ascending control information.
To improve diversity gain, multiple PRB are occupied in a frequency domain, wherein each symbol occupies one or more continuous PRB.These PRB discrete distribution in frequency band, i.e., frequency band shared by multiple PRB are different.Figure 10 shows that equal part is distributed, i.e. the PRB marked as k (0 < k≤N/3), and marked asAndPRB；Wherein, N is the PRB sum of entire frequency band.Label mode is successively label, or the successively label from high frequency to low frequency from low to high, and label is from 1 to N.For example, if being transmitted on X PRB, the label of PRB be followed successively by k,
It should be noted that terminal can also transmit DMRS and control signaling at the end of two adjacent subframes.Specific method is identical as the method for transmitting DMRS and control signaling at the end of two neighboring time slot, and details are not described herein.
In receiving side, the signal on the corresponding subcarrier of DMRS is obtained the channel information of terminal multiplied by corresponding frequency expansion sequence by base station.Base station obtains upstream control signaling divided by corresponding channel information further according to the signal on the corresponding subcarrier of upstream control signaling.Optionally, base station first can merge the uplink control signal on each PRB according to the channel information of each PRB, then obtain upstream control signaling divided by combined channel information again.Optionally, if upstream control signaling is spread on sub-carriers, by the signal on the corresponding subcarrier of upstream control signaling, multiplied by corresponding frequency expansion sequence, then divided by corresponding channel information, to obtain upstream control signaling.
The embodiment of the present invention transmits DMRS and upstream control signaling by the way of frequency division multiplexing and time domain duplication, can be realized as uplink control signaling using seldom time-domain symbol and transmits.And the embodiment of the present invention carries out dilatation using code point, has achieved the effect that diversity gain.
Elaboration is continued with, the mode that frequency division multiplexing provided in an embodiment of the present invention and time domain are expanded transmits DMRS and upstream control signaling, referring to Figure 11, Figure 12.
(a) in Figure 11, which is shown, transmits DMRS and uplink control signaling symbolic construction schematic diagram using monadic symbols.Single symbol transmits multiple DMRS and multiple upstream control signalings on frequency domain in (a) in Figure 12, i.e. a symbol includes two PRB.Such symbolic construction leads to transmission information, and there are multiple problems.For example, the expense of power limited, DMRS are excessive, the subcarrier of DMRS measurement is limited etc..
(b) in Figure 11 shows a kind of using two symbol transmission DMRS and uplink control signaling symbolic construction schematic diagram；Wherein, a symbol includes a PRB, another symbol includes another PRB, and two PRB are on different frequency bands.The embodiment of the present invention is transmitted by the way that part signal is distributed to different PRB, to improve the power of each subcarrier, has achieved the purpose that improve coverage area.As shown in (b) in Figure 11, the signal transmitted on a symbol originally is assigned on two symbols and transmits, improves power.
In receiving side, base station receives the corresponding signal of each DMRS respectively, obtains channel information.The upstream control signaling received is corresponded to the signal on subcarrier again by base station, divided by corresponding channel information, to obtain upstream control signaling.
(b) in Figure 12 shows another using two symbol transmission DMRS and uplink control signaling symbolic construction figure.(c) in (b) and Figure 12 in Figure 12 improves transmission performance by adjusting the position of DMRS.
As shown in (b) in Figure 12, every 3 subcarriers placed a DMRS in (a) in Figure 12 originally, became on two symbols, and each every 6 subcarriers place a DMRS symbol.In this way on frequency domain, the DMRS subcarrier that every three subcarriers have a measurement channel can satisfy Distribution, but the expense of DMRS has dropped.
(c) in Figure 12 shows another using two symbol transmission DMRS and uplink control signaling symbolic construction figure.
As shown in (c) in Figure 12, the position DMRS of first symbol is different with the position DMRS of second symbol, by subcarrier index different on selection frequency domain, every three subcarriers is made to place a DMRS subcarrier.In this way on frequency domain, DMRS can be more accurate to the measurement of channel, and the expense of DMRS is constant.
In receiving side, base station receives each DMRS respectively and corresponds to signal on subcarrier, obtains channel information.The control signaling received is corresponded to the signal on subcarrier again by base station, divided by the channel information, to obtain upstream control signaling.
Figure 13 is the method flow diagram of another transmission uplink signal provided in an embodiment of the present invention.
Step 1310, first terminal determines the length of the upload control set of symbols used according to the specified of base station.For example, the length is two symbols or three symbols or four symbols etc..The upload control set of symbols can be in a time slot (or subframe), can also be in two time slots (or subframe).
It should be noted that first terminal as described herein is not limited to a terminal, which can be a terminal, be also possible to one group of terminal.Equally, second terminal is not limited to a terminal, which can be a terminal, is also possible to one group of terminal.
Step 1320, first terminal determines the symbol that its transmission control information needs to occupy.
By taking Figure 14 as an example, Tu14Zhong, first terminal occupies symbol 1 and symbol 2, and DMRS and upstream control signaling are transmitted in a manner of frequency division multiplexing on symbol 1.I.e. first terminal transmits on corresponding subcarrier on DMRS and upstream control signaling.First terminal transmits DMRS and upstream control signaling on symbol 2 in a manner of frequency division multiplexing.
Step 1330, the first terminal in second terminal multiplexed symbols 1 is used for transmission the position of DMRS, is used for transmission the DMRS of second terminal.That is, first terminal is used for transmission the position of DMRS on symbol 1, second terminal also transmits DMRS.
In one example, the DMRS sequence of first terminal and the DMRS sequence of second terminal are orthogonal, so as to avoid interfering with each other.
Optionally, the DMRS that first terminal and/or second terminal use is made of the DMRS used the QPSK sequence formed or Zadoff-Chu sequence, to keep single-carrier property.
Step 1340, the first terminal in second terminal multiplexed symbols 2 is used for transmission the position of DMRS, is used for transmission the control signaling of second terminal.
In one example, the DMRS sequence of first terminal and the DMRS sequence of second terminal are orthogonal, so as to avoid interfering with each other.
Optionally, the DMRS that first terminal and/or second terminal use is made of the DMRS used the QPSK sequence formed or Zadoff-Chu sequence, to keep single-carrier property.
In one example, one or more of length of the transmission mode of the upload control of base station instruction terminal (including the first terminal and second terminal) terminal, orthogonal sequence, the character position of original transmission, upload control set of symbols etc..
Optionally, base station passes through wireless heterogeneous networks (Radio Resource Control, RRC) signaling or upload control (DL control) signaling or resource element (resource element, RE) position, one or more of display or the length for implicitly indicating the transmission mode of upload control of the terminal, orthogonal sequence, the character position of original transmission, upload control set of symbols etc..
Optionally, the position DMRS on symbol 1 or symbol 2 can be used for the channel information of these terminals of base station measurement by some terminal transmission detection reference signals (sounding reference signal, SRS), the SRS.The SRS can be used the sequence orthogonal with frequency expansion sequence used by first terminal and/or the DMRS of second terminal and be spread.And transmitted on the position of first terminal transmission DMRS, so as to avoid interfering with each other.
The position how second terminal uses first terminal transmission of reference signals is elaborated below by Figure 14, Figure 15, Figure 16, it is multiplexed position (the i.e. step 1330) for the reference signal that first terminal occupies, and how second terminal uses the position of first terminal transmission of reference signals, the uplink control signaling position that multiplexing second terminal occupies.
Figure 14 is the structure of time slot schematic diagram that a kind of two symbols provided in an embodiment of the present invention supply two terminal transmission ascending control informations.
It should be noted that Figure 14 is illustrated by taking a structure of time slot as an example.In fact, a structure of time slot in Figure 14 is also possible to a subframe structure.
As shown in figure 14, the embodiment of the present invention supports two kinds of upload control modes to coexist.The first upload control mode is that first terminal transmits bulk information bit on symbol 1 and symbol 2.First terminal transmits DMRS and upstream control signaling on symbol 1.First terminal also transmits DMRS and upstream control signaling using frequency division multiplexing mode on symbol 2.Second of upload control mode is that second terminal transmits DMRS on symbol 1.Second terminal transmits upstream control signaling in symbol 2.
Specifically, on symbol 1, first terminal transmits the DMRS signal after being spread by frequency expansion sequence on the corresponding subcarrier of DMRS, transmits uplink control signal on other subcarriers.Second terminal only transmits DMRS signal on symbol 1 on the corresponding subcarrier of DMRS, and does not transmit on its remaining sub-carriers.And in the corresponding sub-carrier positions of DMRS, second terminal transmits the DMRS signal after being spread by frequency expansion sequence.Wherein, the used frequency expansion sequence on DMRS is orthogonal with first terminal for frequency expansion sequence used in second terminal.Optionally, frequency expansion sequence is made of the QPSK sequence formed or Zadoff-Chu sequence, to keep single-carrier property.
On symbol 2, first terminal transmits the DMRS signal after being spread by frequency expansion sequence on the corresponding subcarrier of DMRS, and transmits uplink control signal in other subcarriers.Second terminal only transmits the upstream control signaling after being spread by frequency expansion sequence on symbol 2 on the corresponding subcarrier of DMRS, does not transmit on remaining sub-carriers；Wherein, the used frequency expansion sequence on DMRS is orthogonal with first terminal for frequency expansion sequence used by second terminal.
Optionally, frequency expansion sequence is made of the QPSK sequence formed or Zadoff-Chu sequence, to keep single-carrier property.
Optionally, second terminal is spread in two symbols using the same frequency expansion sequence.
In receiving side, base station receives the signal on the corresponding subcarrier of DMRS of symbol 1, obtains the channel information of first terminal and second terminal multiplied by corresponding frequency expansion sequence respectively.Base station receives the signal on the corresponding subcarrier of DMRS of symbol 2, obtains the channel information of first terminal and the uplink control signal of second terminal multiplied by corresponding frequency expansion sequence respectively.Base station receives the signal on the corresponding subcarrier of upstream control signaling of symbol 1 or symbol 2, divided by corresponding channel information, to obtain upstream control signaling.
Optionally, base station can obtain signal into using the decoding process of channel coding.Base station, divided by the channel information of second terminal, obtains the upstream control signaling of second terminal after receiving the uplink control signal of second terminal.
Figure 15 is the structure of time slot schematic diagram that a kind of two symbols provided in an embodiment of the present invention supply two terminal transmission ascending control informations.
It should be noted that Figure 15 is illustrated by taking two time slots i.e. a subframe structure as an example.In fact, two structure of time slot in Figure 15 are also possible to two subframe structures.
As shown in figure 15, the embodiment of the present invention supports three kinds of upload control modes to coexist.The first upload control mode is that first terminal transmits bulk information bit on symbol 1, and first terminal transmits DMRS and upstream control signaling on symbol 1 in a manner of frequency division multiplexing.Second of upload control mode is that second terminal transmits DMRS, the transmitting uplink control information on symbol 2 and symbol 3 in symbol 1.The third upload control mode is that third terminal transmits upstream control signaling on symbol 2, transmits upstream control signaling on symbol 3.
Specifically, on symbol 1, first terminal transmits the DMRS signal after being spread by frequency expansion sequence on the corresponding subcarrier of DMRS, transmits upstream control signaling in other subcarriers.Second terminal only transmits signal on symbol 1 on the corresponding subcarrier of DMRS, does not transmit on remaining sub-carriers.In the corresponding sub-carrier positions of DMRS, second terminal transmits the DMRS signal after being spread by frequency expansion sequence.Wherein, the used frequency expansion sequence on DMRS is orthogonal with first terminal for frequency expansion sequence used by second terminal.Optionally, frequency expansion sequence is made of the QPSK sequence formed or Zadoff-Chu sequence, to keep single-carrier property.
On symbol 2, second terminal transmits the upstream control signaling after being spread by frequency expansion sequence on the whole subcarriers for the PRB for distributing to the second terminal.Third terminal transmits the letter of the DMRS after being spread by frequency expansion sequence on whole subcarriers of the PRB for distributing to the third terminal of the symbol Number.Wherein, second terminal frequency expansion sequence used it is orthogonal with frequency expansion sequence used by third terminal.Optionally, which is made of the QPSK sequence formed or Zadoff-Chu sequence, to keep single-carrier property.
On symbol 3, second terminal transmits the upstream control signaling after being spread by frequency expansion sequence on whole subcarriers of the PRB for distributing to the second terminal of the symbol.Third terminal transmits the upstream control signaling after being spread by frequency expansion sequence on whole subcarriers of the PRB for distributing to the third terminal of the symbol.Wherein, frequency expansion sequence used by second terminal is orthogonal with frequency expansion sequence used by third terminal.Optionally, which is made of the QPSK sequence formed or Zadoff-Chu sequence, to keep single-carrier property.Optionally, used frequency expansion sequence is the same sequence to second terminal in symbol 2 and on symbol 3, and in symbol 2 and on symbol 3, used frequency expansion sequence is also the same sequence to third terminal.
In receiving side, base station receives the signal on the corresponding subcarrier of DMRS on symbol 1, obtains the channel information of first terminal multiplied by corresponding frequency expansion sequence.Base station receives the signal on the corresponding subcarrier of upstream control signaling of symbol 1, obtains upstream control signaling divided by channel information.Optionally, base station obtains signal using the decoding process of channel coding.
Base station receives the signal on the corresponding subcarrier of DMRS of symbol 1, obtains the channel information of second terminal multiplied by corresponding frequency expansion sequence.The uplink control signal that base station receives symbol 2 and the second terminal on symbol 3 obtains the upstream control signaling of second terminal divided by the channel information of second terminal.Base station receives the signal on symbol 2, obtains the channel information of third terminal multiplied by corresponding frequency expansion sequence.Base station receives the signal on symbol 3, obtains the uplink control signal of third terminal multiplied by corresponding frequency expansion sequence, obtains the upstream control signaling of third terminal divided by corresponding channel information.Optionally, on symbol 2 or symbol 3, the channel information of these terminals of base station measurement can be used for by some terminal transmission SRS signals, the SRS signal.The SRS can be used the orthogonal sequence of frequency expansion sequence used by DMRS or upstream control signaling with second terminal and/or third terminal and be spread, so as to avoid interfering with each other.
Figure 16 is the subframe structure schematic diagram that a kind of three symbols provided in an embodiment of the present invention supply two terminal transmission ascending control informations.
It should be noted that Figure 16 is illustrated by taking two time slots i.e. a subframe structure as an example.In fact, two structure of time slot in Figure 16 are also possible to two subframe structures.
As shown in figure 16, the embodiment of the present invention supports three kinds of upload control modes to coexist.The first upload control mode is that first terminal transmits bulk information bit on symbol 1 and symbol 2, and first terminal transmits DMRS and upstream control signaling on symbol 1 in a manner of frequency division multiplexing.Second of upload control mode is that second terminal transmits DMRS on symbol 1 or symbol 2, transmits upstream control signaling on symbol 3.
Specifically, on symbol 1, first terminal transmits the DMRS signal after being spread by frequency expansion sequence on the corresponding subcarrier of DMRS, transmits upstream control signaling in other subcarriers.Second terminal transmits signal on the corresponding subcarrier of DMRS on symbol 1, does not transmit on remaining sub-carriers.And second terminal transmits the DMRS signal after being spread by frequency expansion sequence in the corresponding sub-carrier positions of DMRS.Wherein, the used frequency expansion sequence on DMRS is orthogonal with first terminal for frequency expansion sequence used in second terminal.Optionally, which is made of the QPSK sequence formed or Zadoff-Chu sequence, to keep single-carrier property.
On symbol 2, first terminal transmits the DMRS signal after being spread by frequency expansion sequence on the corresponding subcarrier of DMRS, transmits upstream control signaling in other subcarriers.Optionally, on symbol 2 the corresponding position DMRS from symbol 1 the corresponding position DMRS it is different.Second terminal transmits the signal after being spread by frequency expansion sequence on the corresponding subcarrier of DMRS on symbol 1, and does not transmit signal on its remaining sub-carriers.And the used frequency expansion sequence on DMRS is orthogonal with first terminal for frequency expansion sequence used in second terminal.Optionally, which is made of the QPSK sequence formed or Zadoff-Chu sequence, to keep single-carrier property.
On symbol 3, second terminal transmits the upstream control signaling after being spread by frequency expansion sequence on whole subcarriers of the PRB for distributing to the terminal of the symbol.Optionally, which is made of the QPSK sequence formed or Zadoff-Chu sequence, to keep single-carrier property.
In receiving side, base station receives the signal on the corresponding subcarrier of DMRS of symbol 1, obtains the channel information of first terminal or second terminal multiplied by corresponding frequency expansion sequence.Base station receives the signal on the corresponding subcarrier of DMRS of symbol 2, and the channel information of first terminal or the channel information of second terminal are obtained multiplied by corresponding frequency expansion sequence.Base station receives the signal on the subcarrier corresponding with the upstream control signaling of symbol 2 of symbol 1, removes Upstream control signaling is obtained with channel information, optionally, signal is obtained using the decoding process of channel coding.Base station receives the signal on symbol 3, obtains uplink control signal multiplied by corresponding frequency expansion sequence, divided by the channel information of second terminal, obtains the upstream control signaling of second terminal.
Optionally, on symbol 3, the channel information of these terminals of base station measurement can be used for by some terminal transmission SRS signals, the SRS signal.The SRS can be used the sequence orthogonal with frequency expansion sequence used by the upstream control signaling of second terminal and be spread, so as to avoid interfering with each other.
The embodiment of the invention provides the Coexistence modes of a variety of upload control modes, improve spectrum efficiency.
Figure 17 is terminal schematic diagram provided by one embodiment of the present invention.The terminal 170 includes determination unit 171 and transmission unit 172.
Determination unit 171 is used to determine the structure of subframe or time slot, and the subframe or time slot include reference signal and upstream control signaling, and the reference signal is transmitted in a time multiplexed way with upstream control signaling；Wherein, the subframe or time slot are one or two；
Transmission unit 172 is for sending the subframe or time slot.
In one example, the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically: the subframe or time slot include the first symbol and the second symbol, reference signal described in first symbol transmission, upstream control signaling described in second symbol transmission；First symbol and second symbol are in two adjacent subframes or time slot.
In one example, the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically: the subframe or time slot include the first symbol and the second symbol, reference signal described in first symbol transmission, upstream control signaling described in second symbol transmission；First symbol and second symbol are in same subframe or time slot, and first symbol is adjacent with second symbol.
In one example, the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically: in the first band of two symbols of the first time slot, the first reference signal and the first uplink control signal are transmitted respectively；In the second band on two symbols of the second time slot, the second reference signal and the second upstream control signaling are transmitted respectively；The first band is different from the second band.
In one example, the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically: in the first band of two symbols of the first subframe, the first reference signal and the first uplink control signal are transmitted respectively；In the second band on two symbols of the second subframe, the second reference signal and the second upstream control signaling are transmitted respectively；The first band is different from the second band.
In one example, the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically: two upstream control signalings are transmitted respectively by two symbols of the subframe or time slot, and described two upstream control signalings are transmitted on described two symbols using code point mode.
It should be noted that how terminal is transmitted reference signal and upstream control signaling by time division multiplexing mode, described referring to Fig. 5, Fig. 6 and corresponding contents, details are not described herein.
Figure 18 is terminal schematic diagram provided by one embodiment of the present invention.The terminal 180 includes determination unit 181 and transmission unit 182.
Determination unit 181 is used to determine the structure of subframe or time slot, and the subframe or time slot include reference signal and upstream control signaling, and the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling.
Transmission unit 182 is for sending the subframe or time slot.
In one example, the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling, specifically: the subframe or time slot include the first symbol and the second symbol, reference signal described in frequency division transmission and the upstream control signaling on first symbol, with the transmission mode of first symbol on second symbol, the reference signal and the upstream control signaling are transmitted in repetition.
In one example, the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling, specifically: by including multiple Physical Resource Block PRB in a symbol of the subframe or time slot, pass through reference signal described in each PRB frequency division transmission in the multiple PRB and the upstream control signaling.
In one example, the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling, specifically: the subframe or when Multiple symbols in gap respectively include a Physical Resource Block PRB, and each PRB discrete distribution on frequency domain, pass through reference signal described in each PRB frequency division transmission and the upstream control signaling.
In one example, the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling, specifically: the subframe or time slot include the first symbol and the second symbol, the upstream control signaling transmitted on first symbol and the upstream control signaling transmitted on second symbol, frequency domain distribution are different.
It should be noted that how terminal is transmitted reference signal and upstream control signaling by frequency division multiplexing mode, described referring to Fig. 8-Figure 12 and corresponding contents, details are not described herein.
Figure 19 is terminal schematic diagram provided by one embodiment of the present invention.The terminal 190 includes the first transmission unit 191 and the second transmission unit 192.
First transmission unit 191 is for sending the first symbol, first symbol includes the first reference signal, and the resource that occupies of first reference signal belongs to the resource that the second reference signal of second terminal occupies, first reference signal is orthogonal with second reference signal or code division multiplexing.
Second transmission unit 192 is for sending the second symbol, and second symbol includes the first upstream control signaling, and second symbol is different from first symbol.
In one example, the second upstream control signaling on first symbol is also transmitted by second terminal.
It should be noted that how the reference signal of first terminal occupies the resource of the reference signal of second terminal, described referring to Figure 14-Figure 16 and corresponding contents, details are not described herein.
Figure 20 is terminal schematic diagram provided by one embodiment of the present invention.The terminal 200 includes the first transmission unit 201 and the second transmission unit 202.
First transmission unit 201 includes the first reference signal for sending the first symbol, first symbol.
Second transmission unit 202 is for sending the second symbol, second symbol includes the first upstream control signaling, and the resource that occupies of the first upstream control signaling of the first terminal belongs to the resource that the second reference signal of second terminal occupies, the first upstream control signaling of the first terminal and the second reference signal of the second terminal is orthogonal or code division multiplexing；And first symbol is different from second symbol.
In one example, the third reference signal on first symbol and the second upstream control signaling are also transmitted by the second terminal.
It should be noted that how the upstream control signaling of first terminal occupies the resource of the reference signal of second terminal, described referring to Figure 14-Figure 16 and corresponding contents, details are not described herein.
Figure 21 is terminal schematic diagram provided by one embodiment of the present invention.The terminal 210 includes determination unit 211 and transmission unit 212.
Determination unit 211 is used to determine the structure of subframe or time slot, and the subframe or time slot include the first symbol.
Transmission unit 222 is for sending first symbol, first symbol includes the first reference signal, and the resource that occupies of the first reference signal of the first terminal belongs to the resource that the first upstream control signaling of second terminal occupies, the first reference signal of the first terminal and the first upstream control signaling of the second terminal is orthogonal or code division multiplexing；Second symbol and the first symbol are different.
In one example, the second upstream control signaling of first symbol is also transmitted by the second terminal.
In one example, the second reference signal of second symbol is also transmitted by third terminal.
It should be noted that how the reference signal of first terminal occupies the uplink control signaling resource of second terminal, described referring to Figure 14-Figure 16 and corresponding contents, details are not described herein.
Professional should further appreciate that, unit and algorithm steps described in conjunction with the examples disclosed in the embodiments of the present disclosure, it can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly illustrate the interchangeability of hardware and software, each exemplary composition and step are generally described according to function in the above description.These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Professional technician can use different methods to achieve the described function each specific application, but such implementation should not be considered as beyond the scope of the present invention.
Those of ordinary skill in the art will appreciate that implementing the method for the above embodiments is that can be completed by program come instruction processing unit, the program can store in computer readable storage medium, the storage medium is non-transitory (English: non-transitory) medium, such as random access memory, read-only memory, flash memory, hard disk, solid state hard disk, tape (English: magnetic tape), floppy disk (English: floppy disk), CD (English: optical disc) and any combination thereof.
It is described above; it is merely preferred embodiments of the present invention, but scope of protection of the present invention is not limited thereto, anyone skilled in the art is in the technical scope disclosed by the present invention; any changes or substitutions that can be easily thought of, should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.

Claims (36)

  1. A method of sending uplink signal, which is characterized in that the described method includes:
    Terminal sends uplink signal in subframe or time slot, and the uplink signal includes reference signal and upstream control signaling, and the reference signal is transmitted in a time multiplexed way with upstream control signaling；Wherein, the subframe or time slot are one or two.
  2. The method according to claim 1, wherein the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically:
    The uplink signal includes the first symbol and the second symbol, reference signal described in first symbol transmission, upstream control signaling described in second symbol transmission；
    First symbol and second symbol are in two adjacent subframes or time slot.
  3. The method according to claim 1, wherein the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically:
    The uplink signal includes the first symbol and the second symbol, reference signal described in first symbol transmission, upstream control signaling described in second symbol transmission；
    First symbol and second symbol are in same subframe or time slot, and first symbol is adjacent with second symbol.
  4. The method according to claim 1, wherein the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically:
    In the first band of two symbols of the first time slot, the first reference signal and the first uplink control signal are transmitted respectively；In the second band on two symbols of the second time slot, the second reference signal and the second upstream control signaling are transmitted respectively；The first band is different from the second band.
  5. The method according to claim 1, wherein the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically:
    In the first band of two symbols of the first subframe, the first reference signal and the first uplink control signal are transmitted respectively；In the second band on two symbols of the second subframe, the second reference signal and the second upstream control signaling are transmitted respectively；The first band is different from the second band.
  6. The method according to claim 1, wherein the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically:
    Two upstream control signalings are transmitted respectively by two symbols of the subframe or time slot, and described two upstream control signalings are transmitted on described two symbols using code point mode.
  7. A kind of transmission uplink signal method, which is characterized in that the described method includes:
    Terminal sends uplink signal in subframe or time slot, and the uplink signal includes reference signal and upstream control signaling, and the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling.
  8. The method according to the description of claim 7 is characterized in that the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling, specifically:
    The uplink signal includes the first symbol and the second symbol, reference signal described in frequency division transmission and the upstream control signaling on first symbol, with the transmission mode of first symbol on second symbol, the reference signal and the upstream control signaling are transmitted in repetition.
  9. The method according to the description of claim 7 is characterized in that the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling, specifically:
    By including multiple Physical Resource Block PRB in a symbol of the uplink signal, pass through each PRB frequency division transmission in the multiple PRB The reference signal and the upstream control signaling.
  10. The method according to the description of claim 7 is characterized in that the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling, specifically:
    Multiple symbols in the uplink signal respectively include a Physical Resource Block PRB, and each PRB discrete distribution on frequency domain, pass through reference signal described in each PRB frequency division transmission and the upstream control signaling.
  11. The method according to the description of claim 7 is characterized in that the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling, specifically:
    The uplink signal includes the first symbol and the second symbol, and the upstream control signaling transmitted on first symbol and the upstream control signaling transmitted on second symbol, frequency domain distribution are different.
  12. A method of sending uplink signal, which is characterized in that the described method includes:
    First terminal sends the first symbol, first symbol includes the first reference signal, and the resource that occupies of first reference signal belongs to the resource that the second reference signal of second terminal occupies, first reference signal is orthogonal with second reference signal or code division multiplexing；
    First terminal sends the second symbol, and second symbol includes the first upstream control signaling, and second symbol is different from first symbol.
  13. According to the method for claim 12, which is characterized in that the second upstream control signaling on first symbol is also transmitted by second terminal.
  14. A method of sending uplink signal, which is characterized in that the described method includes:
    First terminal sends the first symbol, and first symbol includes the first reference signal；
    First terminal sends the second symbol, second symbol includes the first upstream control signaling, and the resource that occupies of the first upstream control signaling of the first terminal belongs to the resource that the second reference signal of second terminal occupies, the first upstream control signaling of the first terminal and the second reference signal of the second terminal is orthogonal or code division multiplexing；
    First symbol is different from second symbol.
  15. According to the method for claim 14, which is characterized in that third reference signal and the second upstream control signaling on first symbol are also transmitted by the second terminal.
  16. A method of sending uplink signal, which is characterized in that the described method includes:
    First terminal sends the first symbol, first symbol includes the first reference signal, and the resource that occupies of the first reference signal of the first terminal belongs to the resource that the first upstream control signaling of second terminal occupies, the first reference signal of the first terminal and the first upstream control signaling of the second terminal is orthogonal or code division multiplexing described in the second symbol and the first symbol it is different.
  17. According to the method for claim 16, which is characterized in that the second upstream control signaling of first symbol is also transmitted by the second terminal.
  18. According to the method for claim 16, which is characterized in that the second reference signal of second symbol is also transmitted by third terminal.
  19. A kind of terminal characterized by comprising
    Determination unit, for determining the structure of uplink signal, the uplink signal includes reference signal and upstream control signaling, and the reference signal is transmitted in a time multiplexed way with upstream control signaling in subframe or time slot；Wherein, the subframe or time slot are one or two；
    Transmission unit, for sending the uplink signal.
  20. Terminal according to claim 19, which is characterized in that the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically:
    The uplink signal includes the first symbol and the second symbol, reference signal described in first symbol transmission, upstream control signaling described in second symbol transmission；
    First symbol and second symbol are in two adjacent subframes or time slot.
  21. Terminal according to claim 19, which is characterized in that the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically:
    The uplink signal includes the first symbol and the second symbol, reference signal described in first symbol transmission, upstream control signaling described in second symbol transmission；
    First symbol and second symbol are in same subframe or time slot, and first symbol is adjacent with second symbol.
  22. Terminal according to claim 19, which is characterized in that the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically:
    In the first band of two symbols of the first time slot, the first reference signal and the first uplink control signal are transmitted respectively；In the second band on two symbols of the second time slot, the second reference signal and the second upstream control signaling are transmitted respectively；The first band is different from the second band.
  23. Terminal according to claim 19, which is characterized in that the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically:
    In the first band of two symbols of the first subframe, the first reference signal and the first uplink control signal are transmitted respectively；In the second band on two symbols of the second subframe, the second reference signal and the second upstream control signaling are transmitted respectively；The first band is different from the second band.
  24. Terminal according to claim 19, which is characterized in that the reference signal is transmitted in a time multiplexed way with upstream control signaling, specifically:
    Two upstream control signalings are transmitted respectively by two symbols of the subframe or time slot, and described two upstream control signalings are transmitted on described two symbols using code point mode.
  25. A kind of terminal characterized by comprising
    Determination unit, for determining the structure of uplink signal, the uplink signal includes reference signal and upstream control signaling, and the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling；
    Transmission unit, for sending the uplink signal.
  26. Terminal according to claim 25, which is characterized in that the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling, specifically:
    The uplink signal includes the first symbol and the second symbol, reference signal described in frequency division transmission and the upstream control signaling on first symbol, with the transmission mode of first symbol on second symbol, the reference signal and the upstream control signaling are transmitted in repetition.
  27. Terminal according to claim 25, which is characterized in that the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling, specifically:
    By including multiple Physical Resource Block PRB in a symbol of the uplink signal, pass through reference signal described in each PRB frequency division transmission in the multiple PRB and the upstream control signaling.
  28. Terminal according to claim 25, which is characterized in that the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling, specifically:
    Multiple symbols in the uplink signal respectively include a Physical Resource Block PRB, and each PRB discrete distribution on frequency domain, pass through reference signal described in each PRB frequency division transmission and the upstream control signaling.
  29. Terminal according to claim 25, which is characterized in that the reference signal is transmitted in a manner of frequency division multiplexing with the upstream control signaling, specifically:
    The uplink signal include the first symbol and the second symbol, the upstream control signaling transmitted on first symbol in second symbol The upstream control signaling of upper transmission, frequency domain distribution are different.
  30. A kind of first terminal characterized by comprising
    First transmission unit, for sending the first symbol, first symbol includes the first reference signal, and the resource that first reference signal occupies belongs to the resource that the second reference signal of second terminal occupies, and first reference signal is orthogonal with second reference signal or code division multiplexing；
    Second transmission unit, for sending the second symbol, second symbol includes the first upstream control signaling, and second symbol is different from first symbol.
  31. First terminal according to claim 30, which is characterized in that the second upstream control signaling on first symbol is also transmitted by second terminal.
  32. A kind of first terminal characterized by comprising
    First transmission unit, for sending the first symbol, first symbol includes the first reference signal；
    Second transmission unit, for sending the second symbol, second symbol includes the first upstream control signaling, and the resource that occupies of the first upstream control signaling of the first terminal belongs to the resource that the second reference signal of second terminal occupies, the first upstream control signaling of the first terminal and the second reference signal of the second terminal is orthogonal or code division multiplexing；And first symbol is different from second symbol.
  33. First terminal according to claim 32, which is characterized in that third reference signal and the second upstream control signaling on first symbol are also transmitted by the second terminal.
  34. A kind of first terminal characterized by comprising
    Determination unit, for determining the structure of uplink signal, and the uplink signal includes the first symbol；
    Transmission unit, for sending first symbol, first symbol includes the first reference signal, and the resource that occupies of the first reference signal of the first terminal belongs to the resource that the first upstream control signaling of second terminal occupies, the first reference signal of the first terminal and the first upstream control signaling of the second terminal is orthogonal or code division multiplexing；Second symbol and the first symbol are different.
  35. First terminal according to claim 34, which is characterized in that the second upstream control signaling of first symbol is also transmitted by the second terminal.
  36. According to the method for claim 16, which is characterized in that the second reference signal of second symbol is also transmitted by third terminal.
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