CN107294685A - Communication means when the TTI length of UL transmission and the asymmetric TTI length of DL transmission - Google Patents

Communication means when the TTI length of UL transmission and the asymmetric TTI length of DL transmission Download PDF

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Publication number
CN107294685A
CN107294685A CN201610204130.6A CN201610204130A CN107294685A CN 107294685 A CN107294685 A CN 107294685A CN 201610204130 A CN201610204130 A CN 201610204130A CN 107294685 A CN107294685 A CN 107294685A
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China
Prior art keywords
transmission
tti
timing
ack
transmitted
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CN201610204130.6A
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CN107294685B (en
Inventor
骆喆
武卓
王钧
沈钢
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Nokia Shanghai Bell Co Ltd
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Alcatel Lucent Shanghai Bell Co Ltd
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Priority to CN201610204130.6A priority Critical patent/CN107294685B/en
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

Abstract

Embodiment of the disclosure provides the method and relevant device during for the TTI length of UL transmission and the asymmetric TTI length of DL transmission.Methods described includes：Determine at least one in the timing relationship between timing relationship and UL transmission and the corresponding DL transmission between descending DL transmission and corresponding up UL transmission；According to the timing relationship of the determination, perform UL corresponding with DL transmission transmit and DL corresponding with UL transmission transmit at least one；The Transmission Time Interval TTI of UL transmission in wherein described frequency duplex communications length and the TTI of DL transmission length are arranged to asymmetric.

Description

Communication means when the TTI length of UL transmission and the asymmetric TTI length of DL transmission
Technical field
Embodiment of the disclosure is related to communication means and equipment, and is particularly used for the TTI length and DL of UL transmission The method and apparatus of frequency duplex communications when the TTI length of transmission is asymmetric.
Background technology
In the discussion of the 3rd nearest generation partner program (3GPP), in 3GPP TSG RAN the 67th meeting The discussion on reducing delay is introduced in view.The perception that the delay of grouped data is not only responded to system is most important；And It is also to directly affect the parameter that handling capacity, the demand to caching, transmitting and the quality on various applications are experienced.Mesh Before, in order to reduce the delay of grouped data, the Transmission Time Interval (TTI) shortened is had been introduced into, and from 3GPP TSG RAN WG1 the 83rd meeting rises and just has begun to discuss to it.
In view of backwards compatibility, user equipment (UE) should support that (wherein at least includes tradition to a variety of TTI length simultaneously TTI length and shorten TTI length).In some cases, UE may be operated in different up (UL) TTI length simultaneously With descending (DL) TTI length.Common recognition has been reached to this situation in 3GPP TSG RAN WG1 the 84th meeting.Example Such as, this situation is specifically included：
● although the TTI of DL transmission length is very short, the problem of in order to solve covering, and UE but has to using longer UL transmission TTI length.
● although the TTI length of UL transmission is shorter by, for asking of solving that the B node (eNB) of evolution dispatches Topic, UE has but used the TTI length that traditional DL is transmitted.
● for there are multiple positive acknowledgment/NACKs (ACK/NACK) of the DL/UL of a variety of TTI length transmission Feedback, using identical TTI length.
● multiple member carriers (CC) of the length using different TTI are polymerize.
Because the timing relevant with traditional design is the vacation that identical TTI length has been used based on UL transmission and DL transmission If, it is therefore desirable to which the timing required in the case of asymmetric with the TTI length of the UL TTI length transmitted and DL transmission is relevant New design.
Fig. 1 shows required UL transmitting procedures/DL transmitting procedures and its corresponding hybrid automatic repeat-request (HARQ) timing relationship required between process.
Three kinds of related timing relationships are included between UL transmitting procedures and its corresponding HARQ processes：
● the timing (the first timing U1) between UL scheduling authorizations and UL transmission
● UL transmits the timing (the second timing U2) between ACK/NACK
● the timing (the 3rd timing U3) between ACK/NACK and UL re-transmissions
Two kinds of related timing relationships are included between DL transmitting procedures and its corresponding HARQ processes：
● DL transmits the timing (the 4th timing D1) between ACK/NACK
● the timing (the 5th timing D2) between ACK/NACK and DL re-transmissions
Figure 2 illustrates it is existing used in fdd mode, for UL transmitting procedures and its corresponding HARQ process it Between corresponding timing relationship.As shown in Fig. 2 wherein specifically containing following timing relationship：
First timing U1：When UE have received Downlink Control Information (DCI) of UL scheduling authorizations in n-th of subframe, UE Data will be sent on Physical Uplink Shared Channel (PUSCH) in the n-th+4 subframes.
Second timing U2：When UE sends data on the PUSCH in n-th of subframe, UE will be expected in the n-th+4 subframes On, indicate retransmit physical hybrid automatic repeat request indicator channel (PHICH) or UL scheduling authorizations.
3rd timing U3：When UE receives the DCI of PHICH or UL scheduling authorizations in n-th of subframe, indicating re-transmission When, UE will retransmit data on the PUSCH in the n-th+4 subframes.
Figure 3 illustrates it is existing used in fdd mode, for DL transmitting procedures and its corresponding HARQ processes it Between corresponding timing relationship.As shown in figure 3, wherein specifically containing following timing relationship：
4th timing D1：When UE have received the number on the Physical Downlink Shared Channel (PDSCH) in n-th of subframe According to when, UE will on the Physical Uplink Control Channel PUCCH (or similar to PUCCH PUSCH) in the n-th+4 subframes send ACK/NACK feeds back.
5th timing D2：When eNB receives the ACK/NACK feedbacks in n-th of subframe, eNB will be in m-th of subframe PDSCH on retransmit data, m therein>=n+4.
Up to the present, also for UL transmit TTI length and DL transmission TTI length it is asymmetric in the case of The clear and definite solution of timing relationship.In the disclosure, it will thus provide asymmetric UL is passed used in FDD (FDD) pattern New timing design in the case of defeated TTI length and the TTI length of DL transmission.
Therefore, the frequency division the present disclosure proposes the TTI length for the UL TTI length transmitted and DL transmission when asymmetric is double The method and apparatus of work communication, has used new timing design in methods described and equipment, and realize that 3GPP proposes at present subtracts The purpose of design of few system delay.
The content of the invention
According to an aspect of this disclosure, it is proposed that for the method for frequency duplex communications, including：Determine descending DL transmission In the timing relationship between timing relationship and UL transmission and corresponding DL transmission between corresponding up UL transmission extremely It is few one；According to the timing relationship of the determination, perform UL transmission corresponding with DL transmission and transmit phase with the UL Answer DL transmission at least one；The Transmission Time Interval TTI of UL transmission in wherein described frequency duplex communications length It is arranged to asymmetric with the DL TTI transmitted length.
In accordance with an embodiment of the present disclosure, methods described also includes：Change the TTI of the UL transmission in the frequency duplex communications Length or DL transmission TTI length.
In accordance with an embodiment of the present disclosure, described method also includes：Using selected from least one of in the following manner, it is determined that Timing relationship between the DL transmission and corresponding UL transmission：(a) for the TTI of n-th of DL transmission, it will be passed in n-th of DL The TTI selections for the UL transmission that one numbering of the foremost started after defeated TTI end or at its end is m are reference Point, and by the TTI of the m+k UL transmission be determined as corresponding to n-th of DL transmission it is TTI, for carrying out the phase The TTI of the UL transmission for the UL transmission answered；(b) for the TTI of n-th of DL transmission, by completely at n-th of DL TTI transmitted end The TTI selections for the UL transmission that the rearmost numbering started before tail is m are reference point, and the m+k UL is transmitted TTI be determined as corresponding to n-th of DL transmission it is TTI, transmit for carrying out the UL of corresponding UL transmission TTI；(c) it is the TTI of the DL transmission at x-th of OFDM symbol OS end is as a reference point, and by xth+k Individual OS is determined as corresponding to TTI, for carrying out the TTI that the UL of corresponding UL transmission is transmitted starting of the DL transmission Position；(d) it is reference point by the TTI selections of n-th of DL transmission, and will be opened after the TTI of the n-th+k DL transmission end Begin first UL transmission TTI as corresponding to n-th of DL transmit it is TTI, for carrying out corresponding UL biographies The TTI of defeated UL transmission；And, the TTI selections that (e) transmits n-th of DL are reference point, and will be in the n-th+k DL transmission TTI beginning after or the TTI of first UL transmission that starts at its beginning as transmitting corresponding to n-th of DL TTI, for carry out corresponding UL transmission UL transmit TTI.
In accordance with an embodiment of the present disclosure, methods described also includes：In response to the UL transmission in the frequency duplex communications The TTI of TTI length or DL transmission length changes：According to the length of the TTI after changing, and occupation mode (a) a kind of mode in-(c) carrys out calculating reference point, to determine the timing relationship between the DL transmission and corresponding UL transmission； Or, a kind of mode in occupation mode (d)-(e) determines the timing relationship between the DL transmission and corresponding UL transmission.
In accordance with an embodiment of the present disclosure, methods described also includes：Using selected from least one of in the following manner, determining institute State the timing relationship between UL transmission and corresponding DL transmission：(f), will be in m-th of UL transmission for the TTI of m-th of UL transmission TTI end after or the foremost that starts at its end a numbering be n the TTI selections of DL transmission be reference Point, and by the TTI of the n-th+k DL transmission be determined as corresponding to m-th of UL transmission it is TTI, for carrying out the phase The TTI of the DL transmission for the DL transmission answered；(g) for the TTI of m-th of UL transmission, by completely at m-th of UL TTI transmitted end The TTI selections for the DL transmission that the rearmost numbering started before tail is n are reference point, and the n-th+k DL are transmitted TTI be determined as corresponding to m-th of UL transmission it is TTI, transmit for carrying out the DL of corresponding DL transmission TTI；(h) it is the TTI of the UL transmission at x-th of OS end is as a reference point, and+k OS of xth are determined as corresponding to TTI, for carrying out the TTI that the DL of the DL transmission is transmitted original position of the UL transmission；(i) m-th of UL is transmitted TTI selections be reference point, and the TTI that first DL started after the TTI of the m+k UL transmission end is transmitted It is used as TTI, DL transmission for carrying out corresponding DL transmission the TTI transmitted corresponding to m-th of UL；And, (j) it is reference point by the TTI selections of m-th of UL transmission, and by after the TTI of the m+k UL transmission beginning or at it The TTI of first DL that beginning starts transmission as corresponding to m-th of UL transmit it is TTI, for carrying out the phase The TTI of the DL transmission for the DL transmission answered.
In accordance with an embodiment of the present disclosure, methods described also includes：In response to the UL transmission in the frequency duplex communications The TTI of TTI length or DL transmission length changes：According to the length of the TTI after changing, and occupation mode (f) a kind of mode in-(h) carrys out calculating reference point, to determine the timing relationship between the UL transmission and corresponding DL transmission； Or, a kind of mode in occupation mode (i)-(j) determines the timing relationship between the UL transmission and corresponding DL transmission.
In accordance with an embodiment of the present disclosure, in the process, determining between the DL transmission and corresponding UL transmission is determined When relation include：It is determined that at least one of following timing：(k) the first UL scheduling authorizations and corresponding UL in the DL transmission The first timing U1 between transmission；(l) positive acknowledgment/NACK transmitted for corresponding UL in the DL transmission The 3rd timing U3 between ACK/NACK and UL re-transmissions；And, the data transfer in (m) described DL transmission is transmitted with corresponding DL ACK/NACK feedback between the 4th timing D1.
In accordance with an embodiment of the present disclosure, in the process, determining between the UL transmission and corresponding DL transmission is determined When relation include：Determine the second timing U2 between the UL transmission and the ACK/NACK feedbacks transmitted for the UL.
In accordance with an embodiment of the present disclosure, in the process, determine that at least one of described timing (k)-(m) includes： (n) one kind in the following manner, determines the first timing U1：For asynchronous UL scheduling authorizations, using clearly notifying Pattern, by included in the Downlink Control Information DCI of the first UL scheduling authorizations transmitted for corresponding UL , the designator of the first timing U1 determine the first timing U1, the designator is used to refer to corresponding UL The upper line index of transmission, the upper line index indicates the numerical value at the corresponding intervals of the first timing U1；And, for synchronization UL scheduling authorizations, the first timing U1 is determined using implicit notification mode, wherein the corresponding institutes of the first timing U1 The numerical value for stating interval is pre-defined according to the UL/DL TTI transmitted length, the one kind of (o) in the following manner, it is determined that The 3rd timing U3：Retransmitted for asynchronous UL, using clear and definite notification mode, by being transmitted for corresponding UL Included in the DCI of the ACK/NACK, described 3rd timing U3 designator determines the 3rd timing U3, the finger Show that symbol is used to refer to the upper line index that the UL is retransmitted, the upper line index indicates the corresponding intervals of the 3rd timing U3 Numerical value；Retransmit, when only existing the pure ACK/NACK feedbacks for corresponding UL transmission, use for asynchronous UL Notification mode is specified, is determined by included in the pure ACK/NACK feedbacks, the 3rd timing U3 designator The 3rd timing U3, the designator is used to refer to the upper line index that the UL is retransmitted, and the upper line index indicates described The numerical value at the corresponding intervals of the 3rd timing U3；Retransmitted for asynchronous UL, the institute that corresponding UL is transmitted is directed to when only existing When stating ACK/NACK feedbacks, using clear and definite notification mode, pass through included in the DCI of the first UL scheduling authorizations, institute The 3rd timing U3 designator is stated to determine the 3rd timing U3；And, retransmitted for synchronous UL, using implicit logical Know pattern to determine the 3rd timing U3, wherein the numerical value at the corresponding intervals of the 3rd timing U3 is passed according to the UL/DL Defeated TTI length is pre-defined, and the one kind of (p) in the following manner determines the 4th timing D1：Asynchronous DL is passed Defeated ACK/NACK feedbacks, using clear and definite notification mode, by included in the DCI of the DL scheduling authorizations transmitted, described 4th timing D1 designator determines the 4th timing D1, and the designator is used to refer to the institute of corresponding DL transmission ACK/NACK upper line index is stated, the upper line index indicates the numerical value at the corresponding intervals of the 4th timing D1；And, pin To the ACK/NACK feedbacks of synchronous DL transmission, the 4th timing D1 is determined using implicit notification mode, wherein described the The numerical value at the corresponding intervals of four timing D1 is pre-defined according to the UL/DL TTI transmitted length.
In accordance with an embodiment of the present disclosure, in the process, determine that the second timing U2 also includes：According to lower section One kind in formula, determines the second timing U2：For the ACK/NACK feedbacks of asynchronous UL transmission, awarded by the 2nd UL scheduling The DCI of power determines that the second timing U2, the DCI are used to determine whether to need to be retransmitted, and user equipment passes through to every The TTI of individual DL transmission carries out blind decoding to obtain the DCI, and UL hybrid automatic repeat request process is contained in the DCI Identifier designator；For the ACK/NACK feedbacks of asynchronous UL transmission, using clear and definite notification mode, by described the Included in the DCI of one UL scheduling authorizations, described second timing U2 designator determines the second timing U2, the finger Show that symbol is used to refer to the lower line index of corresponding DL transmission, it is corresponding that the lower line index indicates the second timing U2 The numerical value at interval；And, fed back for the ACK/NACK of synchronous UL transmission, described second is determined using implicit notification mode Timing U2, wherein the numerical value at the corresponding intervals of the second timing U2 is fixed in advance according to the UL/DL TTI transmitted length Justice.
In accordance with an embodiment of the present disclosure, in the process, retransmitted for asynchronous UL, when only existing for described corresponding UL transmission the pure ACK/NACK feedback when, using clear and definite notification mode, pass through the institute in the pure ACK/NACK feedbacks Comprising, the designator of the 3rd timing U3 determine that the 3rd timing U3 includes：In the pure ACK/NACK feedbacks Comprising, the designator of the 3rd timing U3 use orthogonal mask sequence, phase place sequence or pseudo-random sequence One kind in original position.
In accordance with an embodiment of the present disclosure, in the process, for synchronous UL re-transmissions, using implicit notification mode come really The fixed 3rd timing U3 also includes：When the ACK/NACK feedbacks of the asynchronous DL transmission are pure ACK/NACK feedbacks, make The 3rd timing U3 is used as with one kind in the original position of orthogonal mask sequence, phase place sequence or pseudo-random sequence The offset indicator of the numerical value at corresponding interval, for the skew for the numerical value for determining the corresponding intervals of the 3rd timing U3.
In accordance with an embodiment of the present disclosure, in the process, notified for the synchronous UL scheduling authorizations, using implicit The first timing U1 includes described in pattern notification：Pass through the skew used in the DCI for the synchronous UL scheduling authorizations Designator determines the deviant of the first timing U1, and the offset indicator indicates up index offset, the up rope Draw the deviant that skew indicates the first timing U1；Or, cross in the DCI for the synchronous UL scheduling authorizations , the designator of the TTI of the multiple UL distributed transmission resource determine the deviant of the first timing U1.
In accordance with an embodiment of the present disclosure, in the process, the ACK/NACK for the synchronous DL transmission feeds back, made Determine that the 4th timing D1 also includes at least one of in the following manner with implicit notification mode：To for multiple different The TTI of DL transmission multiple ACK/NACK feedbacks use multiple frequency shift (FS)s, and inclined comprising frequency in the DCI of scheduling authorization The designator of shifting, for indicating that the frequency shift (FS) of Physical Uplink Control Channel is indexed, or can be transmitted according to the UL/DL TTI length and the TTI of DL transmission numbering pre-define the numerical value at the corresponding intervals of the 4th timing D1；To for The TTI of multiple different DL transmission multiple ACK/NACK feedbacks use orthogonal multiplex, and quilt is indexed using orthogonal mask sequence Included in DL transmit scheduling authorization DCI in designator, or can according to the UL/DL transmit TTI length and The TTI of DL transmission numbering pre-defines the numerical value at the corresponding intervals of the 4th timing D1；And, for multiple differences TTI multiple ACK/NACK feedbacks of DL transmission include the feedback of combination, in the DCI of the scheduling authorization of DL transmission under use Row distribution index, the descending distribution index is used to indicate the position of the corresponding ACK/NACK feedbacks in combination feedback.
In accordance with an embodiment of the present disclosure, in the process, the ACK/NACK for the synchronous UL transmission feeds back, made Determine that the second timing U2 also includes at least one of following operation with implicit notification mode：To for multiple different The TTI of UL transmission multiple ACK/NACK feedbacks use multiple frequency shift (FS)s, and comprising frequency in the DCI of UL scheduling authorizations The designator of skew determines the second timing U2, and the designator is used to indicate that physics hybrid automatic repeat-request indicates letter Road frequency shift (FS) index, or can according to the UL/DL transmit TTI length and the UL transmit TTI numbering The numerical value at the corresponding intervals of the second timing U2 is pre-defined, or U2 pairs of second timing can be detected by blind decoding The numerical value at the interval answered；Multiple ACK/NACK feedbacks to the TTI for multiple different UL transmission use orthogonal multiplex, use Orthogonal mask sequence indexes the designator being comprised in the DCI of UL scheduling authorizations, or can be transmitted according to the UL/DL TTI length and UL transmission TTI the pre-defined corresponding intervals of the second timing U2 of numbering numerical value, come Determine the second timing U2；And, multiple ACK/NACK feedbacks for the TTI of multiple different UL transmission include combination Feedback, is indexed in the DCI of UL scheduling authorizations using uplink assignment, for indicating the corresponding ACK/NACK in combination feedback The position of feedback.
According to another aspect of the disclosure, it is also proposed that for the equipment of frequency duplex communications, the equipment includes：Really Determine device, the determining device be configured to determine that descending DL transmission transmitted corresponding up UL between timing relationship and UL transmits at least one in the timing relationship between being transmitted with corresponding DL；Performs device, the performs device is configured as According to the timing relationship of the determination, perform UL transmission corresponding with DL transmission and DL corresponding with UL transmission is passed At least one in defeated；The Transmission Time Interval TTI of UL transmission in wherein described frequency duplex communications length and DL transmission TTI length be arranged to asymmetric.
In accordance with an embodiment of the present disclosure, the equipment also includes：Device is set, and the setting device is configured as changing institute State the length for the TTI that the UL in frequency duplex communications is transmitted or the TTI of DL transmission length.
In accordance with an embodiment of the present disclosure, the equipment also includes：First choice device, the first choice device is configured Using selected from least one of in the following manner, to determine the timing relationship between the DL transmission and corresponding UL transmission：(a) For the TTI of n-th of DL transmission, by the foremost started after the TTI of n-th of DL transmission end or at its end The TTI selections for the UL transmission that one numbering is m are reference point, and described in the TTI of the m+k UL transmission is determined as corresponding to TTI, UL transmission for carrying out corresponding UL transmission the TTI of n-th of DL transmission；(b) for n-th of DL transmission TTI, the TTI for the UL transmission for being m by the rearmost numbering started completely before the TTI of n-th of DL transmission end Select as reference point, and by the TTI of the m+k UL transmission be determined as corresponding to n-th of DL transmission it is TTI, be used for Carry out the TTI of the UL transmission of corresponding UL transmission；(c) by the DL transmission at x-th of OFDM symbol OS TTI end is as a reference point, and+k OS of xth are determined as corresponding into the TTI, described for carrying out of the DL transmission The TTI of the UL transmission of corresponding UL transmission original position；(d) it is reference point by the TTI selections of n-th of DL transmission, and will The TTI of the first UL transmission started after the TTI of the n-th+k DL transmission end is passed as corresponding to n-th of DL Defeated TTI, UL transmission for carrying out corresponding UL transmission TTI；And, the TTI that (e) transmits n-th of DL is selected Reference point is selected as, and first UL started after the TTI of the n-th+k DL transmission beginning or at its beginning is passed Defeated TTI as corresponding to n-th of DL transmit it is TTI, for carry out corresponding UL transmission UL transmit TTI。
In accordance with an embodiment of the present disclosure, the equipment also includes：Second selection device, second selection device is configured The TTI of length or DL transmission for the TTI in response to the UL transmission in frequency duplex communications length changes：According to The length of TTI after changing, and a kind of mode in occupation mode (a)-(c) carrys out calculating reference point, it is described to determine DL transmits the timing relationship between being transmitted with corresponding UL；Or, a kind of mode in occupation mode (d)-(e) is described to determine DL transmits the timing relationship between being transmitted with corresponding UL.
In accordance with an embodiment of the present disclosure, the equipment also includes：3rd selection device, the 3rd selection device is configured Using selected from least one of in the following manner, to determine the timing relationship between the UL transmission and corresponding DL transmission：(f) For the TTI of m-th of UL transmission, by the foremost started after the TTI of m-th of UL transmission end or at its end The TTI selections for the DL transmission that one numbering is n are reference point, and the TTI of the n-th+k DL transmission are determined as corresponding to described TTI, DL transmission for carrying out corresponding DL transmission the TTI of m-th of UL transmission；(g) for m-th of UL transmission TTI, the TTI for the DL transmission for being n by the rearmost numbering started completely before the TTI of m-th of UL transmission end Select as reference point, and by the TTI of the n-th+k DL transmission be determined as corresponding to m-th of UL transmission it is TTI, be used for Carry out the TTI of the DL transmission of corresponding DL transmission；(h) it regard the TTI of the UL transmission at x-th of OS end as reference Point, and+k OS of xth are determined as corresponding to the TTI, DL transmission for carrying out the DL transmission of the UL transmission TTI original position；(i) it is reference point by the TTI selections of m-th of UL transmission, and by the TTI's of the m+k UL transmission The TTI of the first DL transmission started after end as corresponding to m-th of UL transmit it is TTI, for described in carrying out The TTI of the DL transmission of corresponding DL transmission；And, the TTI selections that (j) transmits m-th of UL are reference point, and will be in m+ The TTI of the first DL transmission started after the TTI of k UL transmission beginning or at its beginning is as corresponding to the m TTI, DL transmission for carrying out corresponding DL transmission the TTI of individual UL transmission.
In accordance with an embodiment of the present disclosure, the equipment also includes：4th selection device, the 4th selection device is configured The TTI of length or DL transmission for the TTI in response to the UL transmission in frequency duplex communications length changes：According to The length of TTI after changing, and a kind of mode in occupation mode (f)-(h) carrys out calculating reference point, it is described to determine UL transmits the timing relationship between being transmitted with corresponding DL；Or, a kind of mode in occupation mode (i)-(j) is described to determine UL transmits the timing relationship between being transmitted with corresponding DL.
In accordance with an embodiment of the present disclosure, determine that the DL transmission includes with the timing relationship between corresponding UL transmission：Really At least one of fixed following timing：(k) the between the first UL scheduling authorizations in DL transmission and corresponding UL transmission One timing U1；(l) positive acknowledgment transmitted for corresponding UL in the DL transmission/NACK ACK/NACK and UL The 3rd timing U3 between re-transmission；And, the ACK/NACK that the data transfer in (m) described DL transmission is transmitted with corresponding DL is anti- The 4th timing D1 between feedback.
In accordance with an embodiment of the present disclosure, determine that the UL transmission includes with the timing relationship between corresponding DL transmission：Really The second timing U2 between the fixed UL transmission and the ACK/NACK feedbacks transmitted for the UL.
In accordance with an embodiment of the present disclosure, determine that at least one of described timing (k)-(m) includes：(n) according to lower section One kind in formula, determines the first timing U1：For asynchronous UL scheduling authorizations, using clear and definite notification mode, by pin To corresponding UL transmit the first UL scheduling authorizations Downlink Control Information DCI included in, described first determine When U1 designator determine the first timing U1, the designator is used to refer to the up rope of corresponding UL transmission Draw, the upper line index indicates the numerical value at the corresponding intervals of the first timing U1；And, awarded for synchronous UL scheduling Power, the first timing U1 is determined using implicit notification mode, wherein the number at the corresponding intervals of the first timing U1 It is worth and is pre-defined according to the UL/DL TTI transmitted length, the one kind of (o) in the following manner determines that the described 3rd determines When U3：Retransmitted for asynchronous UL, using clear and definite notification mode, by the ACK/ transmitted for corresponding UL Included in NACK DCI, described 3rd timing U3 designator determines the 3rd timing U3, and the designator is used for The upper line index that the UL is retransmitted is indicated, the upper line index indicates the numerical value at the corresponding intervals of the 3rd timing U3；Pin Asynchronous UL is retransmitted, when only existing the pure ACK/NACK feedbacks for corresponding UL transmission, use is clearly led to Know pattern, described the is determined by included in the pure ACK/NACK feedback, the 3rd timing U3 designator Three timing U3, the designator is used to refer to the upper line index that the UL is retransmitted, and the upper line index indicates the described 3rd and determined When the corresponding intervals of U3 numerical value；Retransmitted for asynchronous UL, the ACK/ that corresponding UL is transmitted is directed to when only existing When NACK feeds back, using clear and definite notification mode, by it is included in the DCI of the first UL scheduling authorizations, the described 3rd The timing U3 designator determines the 3rd timing U3；And, retransmitted for synchronous UL, use implicit notification mode To determine the 3rd timing U3, wherein the TTI that the numerical value at the corresponding intervals of the 3rd timing U3 is transmitted according to the UL/DL Length pre-define, the one kind of (p) in the following manner determines the 4th timing D1：For asynchronous DL transmission ACK/NACK feeds back, and using clear and definite notification mode, passes through the included in the DCI of the DL scheduling authorizations transmitted, described 4th Timing D1 designator determines the 4th timing D1, and the designator is used to refer to the described of corresponding DL transmission ACK/NACK upper line index, the upper line index indicates the numerical value at the corresponding intervals of the 4th timing D1；And, for The ACK/NACK feedbacks of synchronous DL transmission, the 4th timing D1 are determined using implicit notification mode, wherein the described 4th The numerical value at the corresponding intervals of timing D1 is pre-defined according to the UL/DL TTI transmitted length.
In accordance with an embodiment of the present disclosure, determine that the second timing U2 includes：One kind in the following manner, determines institute State the second timing U2：For the ACK/NACK feedbacks of asynchronous UL transmission, determined by the DCI of the 2nd UL scheduling authorizations described Second timing U2, the DCI are used to determine whether to need to be retransmitted, and user equipment is carried out by the TTI transmitted to each DL Blind decoding obtains the DCI, contains the designator of the identifier of UL hybrid automatic repeat request process in the DCI； For the ACK/NACK feedbacks of asynchronous UL transmission, using clear and definite notification mode, pass through the DCI in the first UL scheduling authorizations Included in, the designator of the second timing U2 determine the second timing U2, the designator is used to refer to described The lower line index of corresponding DL transmission, the lower line index indicates the numerical value at the corresponding intervals of the second timing U2；And, For the ACK/NACK feedbacks of synchronous UL transmission, the second timing U2 is determined using implicit notification mode, wherein described The numerical value at the corresponding intervals of the second timing U2 is pre-defined according to the UL/DL TTI transmitted length.
In accordance with an embodiment of the present disclosure, retransmitted for asynchronous UL, when only existing the institute transmitted for corresponding UL When stating pure ACK/NACK feedback, using clear and definite notification mode, pass through included in the pure ACK/NACK feedbacks, described the Three timing U3 designator determines that the 3rd timing U3 includes：Being included in the pure ACK/NACK feedback, described the The three timing U3 designator is used in the original position of orthogonal mask sequence, phase place sequence or pseudo-random sequence It is a kind of.
In accordance with an embodiment of the present disclosure, retransmitted for synchronous UL, determine that the described 3rd determines using implicit notification mode When U3 also include：When the ACK/NACK feedbacks of the asynchronous DL transmission are pure ACK/NACK feedbacks, orthogonal mask sequence is used A kind of in row, the original position of phase place sequence or pseudo-random sequence is as the corresponding intervals of the 3rd timing U3 The offset indicator of numerical value, for the skew for the numerical value for determining the corresponding intervals of the 3rd timing U3.
In accordance with an embodiment of the present disclosure, notify described for the synchronous UL scheduling authorizations, using implicit notification mode First timing U1 includes：Determined by the offset indicator used in the DCI for the synchronous UL scheduling authorizations The deviant of the first timing U1, the offset indicator indicates up index offset, and the up index offset is indicated The deviant of the first timing U1；Or, by it is in the DCI for the synchronous UL scheduling authorizations, distributed The designator of the TTI of multiple UL transmission resource determines the deviant of the first timing U1.
In accordance with an embodiment of the present disclosure, the ACK/NACK for the synchronous DL transmission feeds back, uses implicit notice mould Formula determines that the 4th timing D1 also includes at least one of in the following manner：To the TTI for multiple different DL transmission Multiple ACK/NACK feedbacks use multiple frequency shift (FS)s, and include in the DCI of scheduling authorization the designator of frequency shift (FS), For indicate Physical Uplink Control Channel frequency shift (FS) index, or can according to the UL/DL transmit TTI length and The TTI of DL transmission numbering pre-defines the numerical value at the corresponding intervals of the 4th timing D1；To for multiple different The TTI of DL transmission multiple ACK/NACK feedbacks use orthogonal multiplex, are indexed using orthogonal mask sequence and are comprised in DL biographies Designator in the DCI of defeated scheduling authorization, or can be transmitted according to the UL/DL TTI transmitted length and the DL TTI the corresponding intervals of the pre-defined 4th timing D1 of numbering numerical value；And, for multiple different DL transmission TTI multiple ACK/NACK feedbacks include the feedback of combination, and descending distribution rope is used in the DCI of the DL scheduling authorizations transmitted Draw, the descending distribution index is used to indicate the position of the corresponding ACK/NACK feedbacks in combination feedback.
In accordance with an embodiment of the present disclosure, the ACK/NACK for the synchronous UL transmission feeds back, uses implicit notice mould Formula come determine the second timing U2 also include it is following operation at least one of：To the TTI for multiple different UL transmission Multiple ACK/NACK feedbacks use multiple frequency shift (FS)s, and include in the DCI of UL scheduling authorizations the instruction of frequency shift (FS) Accord with determining the second timing U2, the designator is used to indicate that the frequency of physical hybrid automatic repeat request indicator channel is inclined Index is moved, or the numbering for the TTI that can be transmitted according to the UL/DL TTI transmitted length and the UL pre-defines institute The numerical value at the corresponding intervals of the second timing U2 is stated, or the corresponding intervals of the second timing U2 can be detected by blind decoding Numerical value；Multiple ACK/NACK feedbacks to the TTI for multiple different UL transmission use orthogonal multiplex, use orthogonal mask sequence Row index the designator being comprised in the DCI of UL scheduling authorizations, or can be according to UL/DL TTI transmitted length The numerical value at interval corresponding with the second timing U2 that the UL TTI transmitted numbering is pre-defined is spent, it is described to determine Second timing U2；And, multiple ACK/NACK feedbacks for the TTI of multiple different UL transmission include the feedback of combination, Indexed in the DCI of UL scheduling authorizations using uplink assignment, the position for indicating the corresponding ACK/NACK feedbacks in combination feedback Put.
Brief description of the drawings
Needed for Fig. 1 is shown between the commonly required UL transmitting procedures/DL transmitting procedures wanted and its corresponding HARQ procedure The timing relationship wanted.
Fig. 2 show used in fdd mode it is existing, between UL transmitting procedures and its corresponding HARQ process Corresponding timing relationship.
Fig. 3 show used in fdd mode it is existing, between DL transmitting procedures and its corresponding HARQ processes Corresponding timing relationship.
Fig. 4-Fig. 8 respectively illustrate according to the disclosure it is not be the same as Example, for determine DL transmission with corresponding UL biography Mode (a)-(e) of timing relationship between defeated.
Fig. 9-Figure 13 respectively illustrate according to the disclosure it is not be the same as Example, for determine UL transmission with corresponding DL biography Mode (f)-(j) of timing relationship between defeated.
When Figure 14 shows that the TTI of the DL transmission in frequency duplex communications length changes, using Fig. 9-Figure 11 institutes When a kind of determination UL in mode (f)-(h) being shown respectively transmits the timing relationship between corresponding DL transmission, used Two kinds of exemplary methods.
When Figure 15 shows that the TTI of the DL transmission in frequency duplex communications length changes, using Figure 12-Figure 13 institutes When a kind of determination UL in mode (i)-(j) being shown respectively transmits the timing relationship between corresponding DL transmission, used Two kinds of exemplary methods.
Figure 16 shows multiple examples that the first timing U1 is determined by using clear and definite notification mode.
Figure 17 shows multiple examples that the first timing U1 is determined by using implicit notification mode.
Figure 18 shows multiple examples that the second timing U2 is determined by using clear and definite notification mode.
Figure 19 shows multiple examples that the second timing U2 is determined by using implicit notification mode.
Figure 20 shows multiple examples for determining the 3rd timing U3.
Figure 21 shows multiple examples for determining the 4th timing D1.
Figure 22 shows an example of the problem of implicit notification mode result in the TTI that can not dispatch some UL transmission.
Figure 23 is shown the TTI transmitted using UL offset indicator and shown come one of the skew for the TTI for indicating UL transmission Example.
Figure 24 show implicit notification mode result in it is multiple may be in same UL for descending ACK/NACK feedbacks The example of the problem of overlapping on the TTI of transmission.
Figure 25 show implicit notification mode result in it is multiple may be in same DL for up ACK/NACK feedbacks The example of the problem of overlapping on the TTI of transmission.
Figure 26 shows the example flow diagram of the method for frequency duplex communications in accordance with an embodiment of the present disclosure.
Figure 27 shows the example block diagram of the equipment for frequency duplex communications in accordance with an embodiment of the present disclosure.
Embodiment
There is provided below in conjunction with accompanying drawing to being proposed for the asymmetric UL TTI length transmitted and the TTI of DL transmission The design of length and correlation technique and the detailed description of equipment for frequency duplex communications.
For the UL TTI length transmitted and the asymmetric situation of TTI length of DL transmission, it is impossible to reuse traditional timed-shutoff System to timing relationship, it is necessary to redesign.Because UL and DL have different TTI length, when UL is changed to DL With new TTI reference points are needed when DL is changed to UL.
Therefore, embodiment of the disclosure proposes the method for frequency duplex communications, methods described includes, and determines descending DL transmits the timing relationship between timing relationship and UL transmission and corresponding DL transmission between corresponding up UL transmission In at least one；According to the timing relationship of the determination, perform UL corresponding with DL transmission transmit and with the UL Transmit at least one in corresponding DL transmission.
In accordance with an embodiment of the present disclosure, methods described supports dynamic TTI length.
In this case, methods described also includes：Change the length for the TTI that the UL in the frequency duplex communications is transmitted Or the TTI of DL transmission length.
In accordance with an embodiment of the present disclosure, it is thus necessary to determine that the timing relationship between the DL transmission and corresponding UL transmission. When DL is changed to UL, the TTI selections by the UL transmission near the DL TTI transmitted end are reference point.
In this case, as shown in Fig. 4-Fig. 8, methods described is also specifically included：Using selected from the following manner At least one of, determine the timing relationship between the DL transmission and corresponding UL transmission：
Mode (a) (relative timing)：For the TTI of n-th of DL transmission, by after the TTI of n-th of DL transmission end TTI (being represented with the m) selections of the UL transmission for the foremost that (or at its end) starts are reference point.Corresponding UL transmission TTI (TTI for corresponding to n-th DL transmission) be the TTI that the m+k UL is transmitted.
Mode (b) (relative timing)：For the TTI of n-th of DL transmission, by (complete) at n-th of DL TTI transmitted end TTI (being represented with the m) selections of the rearmost UL transmission started before tail are reference point.The TTI of corresponding UL transmission is (right Should be in the TTI of n-th of DL transmission) it is the TTI that the m+k UL is transmitted.
Mode (c) (definitely timing)：By the DL TTI transmitted end (in x-th of OFDM (OFDM) symbol (OS) place) it is as a reference point.The TTI (corresponding to the TTI that the DL is transmitted) of corresponding UL transmission originates in+k OS of xth.
Mode (d)：TTI selections by n-th of DL transmission are reference point.By the TTI of the n-th+k DL transmission end it The TTI (TTI for corresponding to n-th of DL transmission) that the TTI of the first UL transmission started afterwards is transmitted as corresponding UL.
Mode (e)：TTI selections by n-th of DL transmission are reference point.By the TTI of the n-th+k DL transmission beginning it The TTI that the TTI for first UL transmission that (or at its beginning) starts afterwards is transmitted as corresponding UL (corresponds to n-th of DL to pass Defeated TTI).
In accordance with an embodiment of the present disclosure, it is thus necessary to determine that the timing relationship between the UL transmission and corresponding DL transmission. When UL is changed to DL, the TTI selections by the DL transmission near the UL TTI transmitted end are reference point.
In this case, as shown in Fig. 9-Figure 13, methods described is also specifically included：Using selected from the following manner At least one of, determine the timing relationship between the UL transmission and corresponding DL transmission：
Mode (f)：(relative timing)：For the TTI of m-th UL transmission, by the TTI of m-th of UL transmission end it TTI (being represented with the n) selections of the DL transmission for the foremost that (or at its end) starts are reference point afterwards.Corresponding DL is passed Defeated TTI (TTI for corresponding to m-th of UL transmission) is the TTI of the n-th+k DL transmission.
Mode (g)：(relative timing)：For the TTI of m-th of UL transmission, by (complete) m-th of UL TTI's transmitted TTI (being represented with the n) selections of the rearmost DL transmission started before end are reference point.The TTI of corresponding DL transmission (TTI for corresponding to m-th of UL transmission) is the TTI of the n-th+k DL transmission.
Mode (h) (definitely timing)：The UL TTI transmitted end (at x-th of OS) is as a reference point.Corresponding DL The TTI (corresponding to the TTI that the UL is transmitted) of transmission originates in+k OS of xth.
Mode (i)：TTI selections by m-th of UL transmission are reference point.By the TTI of the m+k UL transmission end it The TTI (TTI for corresponding to m-th of UL transmission) that the TTI of the first DL transmission started afterwards is transmitted as corresponding DL.
Mode (j)：TTI selections by m-th of UL transmission are reference point.By the TTI of the m+k UL transmission beginning it The TTI that the TTI for first DL transmission that (or at its beginning) starts afterwards is transmitted as corresponding DL (corresponds to m-th of UL to pass Defeated TTI).
In accordance with an embodiment of the present disclosure, change to aforesaid way (a)-(c) during UL and UL and changed to during DL for DL Aforesaid way (f)-(h)：If when DL is changed to UL (UL is changed to DL, as shown in figure 14), it is allowed to UL (DL) TTI length Degree changes after DL (UL) transmission, then UE should just know corresponding UL (DL) TTI length by certain signaling Degree.According to the TTI of the UL (DL) after changing length using related method come calculating reference point.Or, for DL Change to aforesaid way (d)-(e) during UL and UL and change to aforesaid way (i)-(j) during DL：If changed in DL to UL When (UL is changed to DL, as shown in figure 15), it is allowed to which UL (DL) TTI length changes after DL (UL) transmission, meets First UL (DL) TTI (unrelated with TTI length) of timing relationship is used as corresponding UL (DL) TTI.
Methods described also includes：What length or DL in response to the TTI of the UL transmission in the frequency duplex communications were transmitted TTI length changes：In execution UL transmission corresponding with DL transmission or DL corresponding with UL transmission transmission, according to generation The length of TTI after change, and respectively using one in one kind or aforesaid way (f)-(h) in aforesaid way (a)-(c) Plant and carry out calculating reference point, to determine the timing relationship between the DL transmission and corresponding UL transmission；Or, respectively using above-mentioned One kind in one kind or aforesaid way (i)-(j) in mode (d)-(e) transmits it to determine that the DL is transmitted with corresponding UL Between timing relationship.
It is controlled in view of above-mentioned the 5th traditional timing D2 by eNB, so without carrying out new design to it.Cause This, in the disclosure, is primarily upon timing U1, U2, U3 and D1 design.
Therefore, in accordance with an embodiment of the present disclosure, in the process, determining between the DL transmission and corresponding UL transmission Timing relationship include：It is determined that at least one of following timing：(k) the first UL scheduling authorizations and phase in the DL transmission The first timing U1 between the UL transmission answered；(l) positive acknowledgment transmitted for corresponding UL in DL transmission/no Surely the 3rd timing U3 between ACK/NACK and UL re-transmissions is confirmed；And, data transfer in (m) described DL transmission with it is corresponding The 4th timing D1 between the ACK/NACK feedbacks of DL transmission.
Moreover, in accordance with an embodiment of the present disclosure, in the process, determining between the UL transmission and corresponding DL transmission Timing relationship include：Determine the second timing U2 between the UL transmission and the ACK/NACK feedbacks transmitted for the UL.
Timing U1, U2, U3 and D1 (that is, reference point and its interval between responding) can explicitly or implicitly be notified.It is right In clear and definite notification mode, the numerical value of transmission intercal is carried out via such as DCI or PHICH some signalings.For implying notification mode, According to the UL/DL TTI transmitted length come the numerical value at pre-defined interval.
In accordance with an embodiment of the present disclosure, can be in the following ways for the first timing U1：
Selection 1 (the clear and definite notification mode as shown in figure 16, dispatched for asynchronous UL)：Included in the DCI of UL scheduling authorizations First timing U1 designator, for example, using the designator of 3 bits：Upper line index k=0,1 ..., 7.
Selection 2 (the implicit notification mode as shown in figure 17, dispatched for synchronous UL)：The numerical value at interval is passed according to UL/DL Defeated TTI length is pre-defined.For example, pre-defined numerical value follows following two principles：
1) numerical value is small as far as possible；
2) T is metinterval≥2Tpropagation+Tsignal processing(LUL TTI,LDL TTI), T thereinintervalRepresent the Interval between the TTI of the TTI of n DL transmission end and the m+k UL transmission beginning, TpropagatioRepresent propagation delay And Tsignal processRepresent the time delay (relevant with UL/DL TTI length) of signal transacting, and LUL TTI,LDL TTIRepresent UL/ The TTI of DL transmission length.
When specific example such as Shown in table 1 and Figure 17：
The example of the numerical value at the timing U1 of table 1 first interval
In accordance with an embodiment of the present disclosure, as shown in figure 20, can be in the following ways for the 3rd timing U3：
Selection 1 (the clearly notice retransmitted for asynchronous UL/implicit notification mode)：If made when ACK/NACK feeds back With the DCI of new UL scheduling authorizations, then just notify the 3rd timing U3 using the method consistent with notifying the first timing U1.
Selection 2 (the clear and definite notification mode retransmitted for asynchronous UL)：If only having used pure ACK/NACK feedbacks (similar In PHICH), then the 3rd timing U3 designator is contained in the pure ACK/NACK feedbacks, for example, using the instruction of 3 bits Symbol：Uplink retransmission indexes k=0,1 ..., 7.For example, by using the ACK/ of orthogonal mask (OCC) sequence as shown in table 2 NACK feeds back to notify the designator.
The example of the orthogonal mask sequence of table 2
Index value Orthogonal mask sequence
0 [+1 +1 +1 +1]
1 [+1 -1 +1 -1]
2 [+1 +1 -1 -1]
3 [+1 -1 -1 +1]
4 [+j +j +j +j]
5 [+j -j +j -j]
6 [+j +j -j -j]
7 [+j -j -j +j]
The example of the phase place sequence of table 3
Index value Phase place sequence
0 [+1 +1 +1]
1 [+1 +1 -1]
2 [+1 -1 -1]
3 [+1 -1 +1]
4 [-1 -1 +1]
5 [-1 -1 -1]
6 [-1 +1 -1]
7 [-1 +1 +1]
Or, for example, feeding back to notify the designator by using the ACK/NACK of phase place as shown in table 3.
Or, pass through the original position of the ACK/NACK pseudo-random sequences fed backTo notify the designator.
Selection 3 (the clear and definite notification mode retransmitted for asynchronous UL)：If only having used ACK/NACK feedbacks (to be similar to PHICH), then the 3rd timing U3 designator is included in the DCI of initial UL scheduling authorizations, for example, using the instruction of 3 bits Symbol：Uplink retransmission indexes k=0,1 ..., 7.
Selection 4 (the implicit notification mode retransmitted for synchronous UL)：Similar to the first timing U1 selection 2, according to UL/ DL transmission TTI length come pre-define be spaced numerical value.
In accordance with an embodiment of the present disclosure, as shown in figure 21, can be in the following ways for the 4th timing D1：
Selection 1 (for the clear and definite notification mode of the asynchronous DL ACK/NACK feedbacks transmitted)：The scheduling authorization of DL transmission DCI in include the 4th timing D1 designator, for example, using the designator of 3 bits：Upper line index k=0,1 ..., 7.
Selection 2 (for the implicit notification mode of the ACK/NACK feedbacks of synchronous DL transmission)：Similar to the first timing U1 Selection 2, according to the UL/DL TTI transmitted length come the numerical value at pre-defined interval.
In this case, in accordance with an embodiment of the present disclosure, in the process, determine in timing (k)-(m) At least one includes：(n) one kind in the following manner, determines the first timing U1：For asynchronous UL scheduling authorizations, Using clear and definite notification mode, by the Downlink Control Information for corresponding UL the first UL scheduling authorizations transmitted Included in DCI, described first timing U1 designator determines the first timing U1, and the designator is used to refer to institute The upper line index of corresponding UL transmission is stated, the upper line index indicates the numerical value at the corresponding intervals of the first timing U1；With And, for synchronous UL scheduling authorizations, the first timing U1 is determined using implicit notification mode, wherein first timing The numerical value at the corresponding intervals of U1 is pre-defined according to the UL/DL TTI transmitted length, and (o) is according in the following manner One kind, determine the 3rd timing U3：Retransmitted for asynchronous UL, using clear and definite notification mode, by for the phase Included in the ACK/NACK for the UL transmission answered DCI the, designator of the 3rd timing U3 determines the described 3rd Timing U3, the designator is used to refer to the upper line index that the UL is retransmitted, and the upper line index indicates the 3rd timing The numerical value at the corresponding intervals of U3；Retransmitted for asynchronous UL, the pure ACK/ that corresponding UL is transmitted is directed to when only existing When NACK feeds back, using clear and definite notification mode, pass through included in the pure ACK/NACK feedbacks, the 3rd timing U3 Designator determine the 3rd timing U3, the designator is used to refer to the upper line index that the UL is retransmitted, described up Index indicates the numerical value at the corresponding intervals of the 3rd timing U3；Retransmitted for asynchronous UL, the phase is directed to when only existing During the ACK/NACK feedbacks for the UL transmission answered, using clear and definite notification mode, pass through the DCI in the first UL scheduling authorizations Included in, the designator of the 3rd timing U3 determine the 3rd timing U3；And, for synchronous UL weights Pass, the 3rd timing U3 is determined using implicit notification mode, wherein the numerical value root at the corresponding intervals of the 3rd timing U3 Pre-defined according to the UL/DL TTI transmitted length, the one kind of (p) in the following manner, determine the 4th timing D1：To the ACK/NACK feedbacks of asynchronous DL transmission, using clear and definite notification mode, pass through the DCI in the DL scheduling authorizations transmitted Included in, the designator of the 4th timing D1 determine the 4th timing D1, the designator is used to refer to described The ACK/NACK of corresponding DL transmission upper line index, the upper line index indicates corresponding of the 4th timing D1 Every numerical value；And, fed back for the ACK/NACK of synchronous DL transmission, determine that the described 4th determines using implicit notification mode When D1, wherein the numerical value at the corresponding intervals of the 4th timing D1 is pre-defined according to the UL/DL TTI transmitted length.
In this case, in the process, determine that the 3rd timing U3 also includes：It is anti-in the pure ACK/NACK 3rd timing U3 included in feedback, the described designator uses orthogonal mask sequence, phase place sequence or pseudorandom sequence One kind in the original position of row.
In accordance with an embodiment of the present disclosure, can be in the following ways for the second timing U2：
Selection 1 (carries out blind decoding) for the ACK/NACK feedbacks that asynchronous UL is transmitted：ENB transmits new UL scheduling authorizations DCI, for notifying whether UE needs to be retransmitted.UE is obtained new by carrying out blind decoding in the TTI that each DL is transmitted DCI.Because UL HARQ processes identifier (ID) and UL scheduling authorizations DCI TTI numbering (number) between Timing relationship (asynchronous) is unsatisfactory for, so containing the ID of UL HARQ processes designator in DCI.
Selection 2 (the clear and definite notification mode as shown in figure 18, fed back for the ACK/NACK of asynchronous UL transmission)：Initial The second timing U2 designator is included in the DCI of UL scheduling authorizations, for example, using the designator of 3 bits：Lower line index k=0, 1 ..., 7.
Selection 3 (as shown in figure 19, the implicit notice for the ACK/NACK feedbacks of synchronous UL transmission is detected)：According to The TTI of UL/DL transmission length has pre-defined the numerical value at interval.In the ID and ACK/NACK of UL HARQ processes TTI volume Timing relationship (synchronization) is met between number.Pre-defined numerical value follows following two principles：
1) numerical value is small as far as possible；
2) T is metimterval≥2Tpropagation+Tsignal processing(LUL TTI,LDL TTI), T thereinintervalRepresent the Interval between the TTI of the TTI of m UL transmission end and the n-th+k DL transmission beginning, TpropagatioRepresent propagation delay And Tsignal processRepresent the time delay (relevant with the UL/DL TTI transmitted length) of signal transacting, and LUL TTI,LDL TTITable Show the TTI of UL/DL transmission length.
When specific example such as Shown in table 4 and Figure 19：
The example of the numerical value at the timing U2 of table 4 second interval
In this case, in the process, determine that the second timing U2 also includes：One in the following manner Kind, determine the second timing U2：For the ACK/NACK feedbacks of asynchronous UL transmission, pass through the DCI of the 2nd UL scheduling authorizations To determine that the second timing U2, the DCI are used to determine whether to need to be retransmitted, user equipment to each DL by transmitting TTI carry out blind decoding and obtain the DCI, contain the identifier of UL hybrid automatic repeat request process in the DCI Designator；For the ACK/NACK feedbacks of asynchronous UL transmission, using clear and definite notification mode, by being dispatched in the first UL Included in the DCI of mandate, described second timing U2 designator determines the second timing U2, and the designator uses To indicate the lower line index of corresponding DL transmission, the lower line index indicates the corresponding intervals of the second timing U2 Numerical value；And, fed back for the ACK/NACK of synchronous UL transmission, second timing is determined using implicit notification mode U2, wherein the numerical value at the corresponding intervals of the second timing U2 is pre-defined according to the UL/DL TTI transmitted length.
The other problems of implicit notification mode
Implicit notification mode is lower than the expense of clear and definite notification mode, but is likely to result in some problems, for example, can The multiple ACK/NACK that can not dispatch the TTI and DL (UL) of some UL transmission can be caused to feed back in same UL (DL) TTI Upper overlapping the problem of.In order to solve these problems, it is necessary to introduce additional designator, and it is transmitted by certain signaling .Three specific embodiments therein are described below：
1st, the problem of notification mode result in the TTI that can not dispatch some UL transmission is implied, as shown in figure 22.
Selection 1：As shown in figure 23, using the UL TTI transmitted offset indicator.For example, in the DCI of UL scheduling authorizations In, the offset indicator of 2 bits has been used to indicate up index offset w=0,1,2,3.For example, anti-for pure ACK/NACK Feedback, the offset indicator is used as by the original position of OCC sequences, phase place sequence or pseudo-random sequence.
In this case, in the process, determine that the 3rd timing U3 also includes：When the asynchronous DL transmission ACK/NACK feedbacks when being pure ACK/NACK feedback, use orthogonal mask sequence, phase place sequence or pseudo-random sequence The offset indicator of a kind of numerical value as the corresponding intervals of the 3rd timing U3 in original position, for determining described The skew of the numerical value at the corresponding intervals of three timing U3.
Selection 2：The DCI of UL scheduling authorizations is assigned with the TTI of multiple UL transmission resource.For example, the DCI of UL scheduling authorizations The TTI of multiple continuous UL transmission is managed, UE can use identical resource block on the TTI of this multiple continuous UL transmission (RB) distribution and identical Modulation and Coding Scheme (MCS) configure to be transmitted.For example, being carried out by the DCI of UL scheduling authorizations The TTI of multiple UL transmission of management bit map 01/10/11.UE is divided on the TTI that this multiple UL is transmitted using identical RB It is transmitted with being configured with identical MCS.
In this case, in the process, it is logical using implicit notification mode for the synchronous UL scheduling authorizations Know the first timing U1, in addition to：(corresponding to above-mentioned selection 1) is directed to by for the synchronous UL scheduling authorizations Offset indicator used in DCI determines the deviant of the first timing U1, and the offset indicator indicates up rope Draw skew, the up index offset indicates the deviant of the first timing U1；Or, (corresponding to above-mentioned selection 2) mistake The designator of the TTI of multiple UL transmission in the DCI for the synchronous UL scheduling authorizations, being distributed resource is come really Fixed first timing U1 deviant.
2nd, as shown in figure 24, implicit notification mode result in multiple fed back for descending ACK/NACK may be same The problem of overlapping on the TTI of UL transmission.
Selection 1：Multiple ACK/NACK feedbacks to the TTI for multiple different DL transmission use multiple frequency shift (FS)s. It can include the designator (PUCCH frequency shift (FS)s index) of frequency shift (FS) in the DCI of the DL scheduling authorizations transmitted, or can be with Pre-defined according to the UL/DL TTI transmitted length and the DL TTI transmitted numbering.
Selection 2：Multiple ACK/NACK feedbacks to the TTI for multiple different DL transmission use orthogonal multiplex.OCC can The designator (PUCCH OCC) in the DCI of the scheduling authorization of DL transmission is comprised in for index, or can be according to UL/ The TTI of DL transmission length and the TTI of DL transmission numbering are pre-defined.
Selection 3：The feedback that multiple ACK/NACK feedbacks for the TTI of multiple different DL transmission include combining is (similar In PUCCH form 3).Descending distribution index is needed in the DCI of the DL scheduling authorizations transmitted, for indicating in combination feedback Corresponding ACK/NACK feedback position.
In this case, in the process, the ACK/NACK feedbacks of the synchronous DL transmission, are notified using implicit Pattern determines that the 4th timing D1 also includes at least one of in the following manner：(corresponding to above-mentioned selection 1) is to for more The TTI of individual different DL transmission multiple ACK/NACK feedbacks use multiple frequency shift (FS)s, and are wrapped in the DCI of scheduling authorization Designator containing frequency shift (FS), for indicating that the frequency shift (FS) of Physical Uplink Control Channel is indexed, or can be according to the UL/ The TTI of DL transmission length and the TTI of DL transmission numbering pre-define the number at the corresponding intervals of the 4th timing D1 Value；(corresponding to above-mentioned selection 2) uses multiple ACK/NACK feedbacks of the TTI for multiple different DL transmission orthogonal multiple With, the designator being comprised in the DCI of the scheduling authorization of DL transmission is indexed using orthogonal mask sequence, or can basis The TTI of UL/DL transmission length and the TTI of DL transmission numbering pre-define the 4th timing D1 it is corresponding between Every numerical value；And, the multiple ACK/NACK feedback bags of (corresponding to above-mentioned selection 3) for the TTI of multiple different DL transmission The feedback of combination is included, descending distribution index is used in the DCI of the DL scheduling authorizations transmitted, the descending distribution index is used to refer to Show the position of the corresponding ACK/NACK feedbacks in combination feedback.
3rd, as shown in figure 25, implicit notification mode result in multiple fed back for up ACK/NACK may be same The problem of overlapping on the TTI of DL transmission.
Selection 1：Multiple ACK/NACK feedbacks to the TTI for multiple different UL transmission use multiple frequency shift (FS)s. The designator (PHICH frequency shift (FS)s index) of frequency shift (FS) can be included in the DCI of UL scheduling authorizations, or can basis The TTI of UL/DL transmission length and the TTI of UL transmission numbering are pre-defined, or can be examined by blind decoding Survey and (be similar to Physical Downlink Control Channel (PDCCH)).
Selection 2：Multiple ACK/NACK feedbacks to the TTI for multiple different UL transmission use orthogonal multiplex.OCC can The designator (PHICH OCC) in the DCI of UL scheduling authorizations is comprised in for index, or can be transmitted according to UL/DL TTI length and the TTI numbering of UL transmission pre-defined.
Selection 3：The feedback that multiple ACK/NACK feedbacks for the TTI of multiple different UL transmission include combining is (similar In PUCCH form 3).Uplink assignment is needed to index in the DCI of UL scheduling authorizations, it is corresponding in combination feedback for indicating ACK/NACK feedback position.
In this case, in the process, fed back for the ACK/NACK of the synchronous UL transmission, using implicit At least one of notification mode determines the second timing U2, in addition to following operation：(corresponding to above-mentioned selection 1) is to pin Multiple ACK/NACK feedbacks to the TTI of multiple different UL transmission use multiple frequency shift (FS)s, and in UL scheduling authorizations The designator comprising frequency shift (FS) determines the second timing U2 in DCI, and the designator is used to indicate that physical mixed is automatic Repeat requests indicate the frequency shift (FS) index of channel, or can be passed according to the UL/DL TTI transmitted length and the UL Defeated TTI numbering pre-defines the numerical value at the corresponding intervals of the second timing U2, or institute can be detected by blind decoding State the numerical value at the corresponding intervals of the second timing U2；(corresponding to above-mentioned selection 2) is more to the TTI's for multiple different UL transmission Individual ACK/NACK feedbacks use orthogonal multiplex, are indexed and are comprised in the DCI of UL scheduling authorizations using orthogonal mask sequence Designator, or the TTI that can be transmitted according to the UL/DL TTI transmitted length and UL numbering are pre-defined The numerical value at the corresponding interval of the second timing U2, to determine the second timing U2；And, (corresponding to above-mentioned selection 3) pin Multiple ACK/NACK feedbacks to the TTI of multiple different UL transmission include the feedback of combination, make in the DCI of UL scheduling authorizations Up distribution index is used, the position for indicating the corresponding ACK/NACK feedbacks in combination feedback.
Figure 26 shows the example flow diagram of the method for frequency duplex communications in accordance with an embodiment of the present disclosure.
As shown in figure 26, in step S2601, the timing relationship and UL between DL transmission and corresponding UL transmission are determined At least one in the timing relationship between being transmitted with corresponding DL is transmitted, the TTI of the UL transmission wherein in frequency duplex communications Length and the TTI length of DL transmission be arranged to asymmetric.
In step S2602, according to the timing relationship of the determination, perform UL corresponding with DL transmission transmit and At least one in DL corresponding with UL transmission transmission.
Selectively, in step S2603, the length or DL for the TTI that the UL in the frequency duplex communications is transmitted are changed The TTI of transmission length.
Selectively, in step S2604, using selected from least one of mode (a)-(e), determining that the DL transmits Timing relationship between being transmitted with corresponding UL.
Selectively, in step S2605, using selected from least one of mode (f)-(j), determining that the UL transmits Timing relationship between being transmitted with corresponding DL.
Selectively, in step S2606, in response in the frequency duplex communications UL transmission TTI length or The TTI of DL transmission length changes：According to the length of the TTI after changing, and occupation mode (a)-(c) or (f)- (h) a kind of mode in carrys out calculating reference point, with determine between DL transmission and corresponding UL transmission or UL transmission and Timing relationship between corresponding DL transmission；Or, a kind of mode in occupation mode (d)-(e) or (i)-(j) is to determine State the timed-shutoff between timing relationship or UL transmission and the corresponding DL transmission between DL transmission and corresponding UL transmission System.
Figure 27 shows the example block diagram of the equipment for frequency duplex communications in accordance with an embodiment of the present disclosure.Wherein wrap Include determining device 2701, performs device 2702, and it is selectable including setting device 2703, first choice device 2704, the Two selection devices 2705, the 3rd selection device 2706 and the 4th selection device 2707.
Determining device 2701 is configured as, and determines that timing relationship and UL between DL transmission and corresponding UL transmission are transmitted Corresponding DL transmit between timing relationship at least one.
Performs device 2702 is configured as, according to the timing relationship of the determination, is performed and the corresponding UL of DL transmission Transmission and DL corresponding with UL transmission transmit at least one.
Device 2703 is set to be configured as, the TTI for the UL transmission for being configured as changing in frequency duplex communications length The length of degree or the TTI of DL transmission.
First choice device 2704 is configured as, using selected from least one of mode (a)-(e), determining that the DL passes Timing relationship between the defeated transmission with corresponding UL.
Second selection device 2705 is configured as, in response to the TTI of the UL transmission in frequency duplex communications length Or the TTI of DL transmission length changes：According to the length of the TTI after changing, and in occupation mode (a)-(c) A kind of mode carrys out calculating reference point, to determine the timing relationship between the DL transmission and corresponding UL transmission；Or, user A kind of mode in formula (d)-(e) determines the timing relationship between the DL transmission and corresponding UL transmission.
3rd selection device 2706 is configured as, using selected from least one of mode (f)-(j), determining that the UL passes Timing relationship between the defeated transmission with corresponding DL.
4th selection device 2707 is configured as, in response to the TTI of the UL transmission in frequency duplex communications length Or the TTI of DL transmission length changes：According to the length of the TTI after changing, and in occupation mode (f)-(h) A kind of mode carrys out calculating reference point, to determine the timing relationship between the UL transmission and corresponding DL transmission；Or, user A kind of mode in formula (i)-(j) determines the timing relationship between the UL transmission and corresponding DL transmission.
Only include the illustrative exemplary step in part and dress in exemplary communication method and equipment in Figure 26 and Figure 27 Part is put, but those skilled in the art is contemplated that includes other step and device feature wherein.
As described above, it has been described that according at least one embodiment of the disclosure, although it is to be understood that on State some of embodiment embodiment have been directed to descending DL transmission transmitted corresponding up UL between timing relationship or UL The one kind transmitted in the timing relationship between being transmitted with corresponding DL is described, but those skilled in the art can set Want to use identical method in another timing relationship.It should also be understood that, above-described embodiment is not of this disclosure The limitation of embodiment, the scope of embodiment of the disclosure is only limited by the scope of appended claims.

Claims (30)

1. a kind of method for frequency duplex communications, including：
Determine that timing relationship and UL between descending DL transmission and corresponding up UL transmission transmit and transmit it with corresponding DL Between timing relationship at least one；And
According to the timing relationship of the determination, UL transmission corresponding with DL transmission is performed and corresponding with UL transmission DL transmission at least one；
The length of the Transmission Time Interval TTI of UL transmission in wherein described frequency duplex communications length and the TTI of DL transmission It is arranged to asymmetric.
2. according to the method described in claim 1, in addition to：
Change the length for the TTI that the UL in the frequency duplex communications is transmitted or the TTI of DL transmission length.
3. method according to claim 1 or 2, in addition to：
Using selected from least one of in the following manner, the timing relationship between the DL transmission and corresponding UL transmission is determined：
(a) for the TTI of n-th of DL transmission, by what is started after the TTI of n-th of DL transmission end or at its end The TTI selections for the UL transmission that one of foremost numbering is m are reference point, and the m+k UL TTI transmitted are defined as pair TTI, UL transmission for carrying out corresponding UL transmission the TTI of n-th of DL transmission described in Ying Yu；
(b) it is rearmost by what is started completely before the TTI of n-th of DL transmission end for the TTI of n-th of DL transmission The TTI selections for the UL transmission that one numbering is m are reference point, and described in the TTI of the m+k UL transmission is determined as corresponding to TTI, UL transmission for carrying out corresponding UL transmission the TTI of n-th of DL transmission；
(c) it is the TTI of the DL transmission at x-th of OFDM symbol OS end is as a reference point, and by xth+k Individual OS is determined as corresponding to TTI, for carrying out the TTI that the UL of corresponding UL transmission is transmitted starting of the DL transmission Position；
(d) it is reference point by the TTI selections of n-th of DL transmission, and will be opened after the TTI of the n-th+k DL transmission end Begin first UL transmission TTI as corresponding to n-th of DL transmit it is TTI, for carrying out corresponding UL biographies The TTI of defeated UL transmission；And
(e) be reference point by the TTI selections of n-th DL transmission, and by after the TTI of the n-th+k DL transmission beginning or Start at its beginning first UL transmission TTI as corresponding to n-th of DL transmit it is TTI, for carrying out institute State the TTI of the UL transmission of corresponding UL transmission.
4. method according to claim 3, in addition to：
The TTI of length or DL transmission in response to the TTI of the UL transmission in frequency duplex communications length changes：
According to the length of the TTI after changing, and a kind of mode in occupation mode (a)-(c) carrys out calculating reference point, with Determine the timing relationship between the DL transmission and corresponding UL transmission；Or
A kind of mode in occupation mode (d)-(e) determines the timing relationship between the DL transmission and corresponding UL transmission.
5. method according to claim 1 or 2, in addition to：
Using selected from least one of in the following manner, the timing relationship between the UL transmission and corresponding DL transmission is determined：
(f) for the TTI of m-th of UL transmission, by what is started after the TTI of m-th of UL transmission end or at its end The TTI selections for the DL transmission that one of foremost numbering is n are reference point, and the TTI of the n-th+k DL transmission is defined as pair TTI, DL transmission for carrying out corresponding DL transmission the TTI of m-th of UL transmission described in Ying Yu；
(g) it is rearmost by what is started completely before the TTI of m-th of UL transmission end for the TTI of m-th of UL transmission The TTI selections for the DL transmission that one numbering is n are reference point, and the TTI of the n-th+k DL transmission are determined as corresponding to described TTI, DL transmission for carrying out corresponding DL transmission the TTI of m-th of UL transmission；
(h) it is the TTI of the UL transmission at x-th of OS end is as a reference point, and+k OS of xth are determined as corresponding to TTI, for carrying out the TTI that the DL of the DL transmission is transmitted original position of the UL transmission；
(i) it is reference point by the TTI selections of m-th of UL transmission, and will be opened after the TTI of the m+k UL transmission end Begin first DL transmission TTI as corresponding to m-th of UL transmit it is TTI, for carrying out corresponding DL biographies The TTI of defeated DL transmission；And
(j) be reference point by the TTI selections of m-th UL transmission, and by after the m+k UL TTI transmitted beginning or Start at its beginning first DL transmission TTI as corresponding to m-th of UL transmit it is TTI, for carrying out institute State the TTI of the DL transmission of corresponding DL transmission.
6. method according to claim 5, in addition to：
The TTI of length or DL transmission in response to the TTI of the UL transmission in frequency duplex communications length changes：
According to the length of the TTI after changing, and a kind of mode in occupation mode (f)-(h) carrys out calculating reference point, with Determine the timing relationship between the UL transmission and corresponding DL transmission；Or
A kind of mode in occupation mode (i)-(j) determines the timing relationship between the UL transmission and corresponding DL transmission.
7. method according to claim 3, wherein determining the timing relationship between the DL transmission and corresponding UL transmission Including：
It is determined that at least one of following timing：
(k) the first timing (U1) between the first UL scheduling authorizations in the DL transmission are transmitted with corresponding UL；
(l) being retransmitted for the positive acknowledgment/NACK ACK/NACK and UL that corresponding UL is transmitted in the DL transmission Between the 3rd timing (U3)；And
(m) the 4th timing (D1) between the ACK/NACK feedbacks that the data transfer in the DL transmission is transmitted with corresponding DL.
8. method according to claim 5, wherein determining the timing relationship between the UL transmission and corresponding DL transmission Including：
Determine the second timing (U2) between the UL transmission and the ACK/NACK feedbacks transmitted for the UL.
9. method according to claim 7, wherein determining that at least one of described timing (k)-(m) includes：
(n) one kind in the following manner, determines first timing (U1)：
For asynchronous UL scheduling authorizations, using clear and definite notification mode, by described transmitted for corresponding UL The designator of included in the Downlink Control Information DCI of one UL scheduling authorizations, described first timing (U1) determines described the One timing (U1), the designator is used to refer to the upper line index of corresponding UL transmission, and the upper line index indicates institute State the numerical value at the corresponding interval of the first timing (U1)；And
For synchronous UL scheduling authorizations, first timing (U1) is determined using implicit notification mode, wherein described first Regularly the numerical value at (U1) corresponding described interval is pre-defined according to the UL/DL TTI transmitted length,
(o) one kind in the following manner, determines the 3rd timing (U3)：
Retransmitted for asynchronous UL, using clear and definite notification mode, by the ACK/ transmitted for corresponding UL It is included in NACK DCI, it is described 3rd timing (U3) designator come determine it is described 3rd timing (U3), the designator The upper line index that the UL is retransmitted is used to refer to, the upper line index indicates the number at the corresponding interval of the 3rd timing (U3) Value；
Retransmit, when only existing the pure ACK/NACK feedbacks for corresponding UL transmission, use for asynchronous UL Notification mode is specified, by the designator of included in the pure ACK/NACK feedbacks, the 3rd timing (U3) come really Fixed 3rd timing (U3), the designator is used to refer to the upper line index that the UL is retransmitted, and the upper line index is indicated The numerical value at described 3rd timing (U3) corresponding interval；
Retransmitted for asynchronous UL, when only existing the ACK/NACK feedbacks for corresponding UL transmission, using bright True notification mode, passes through the instruction of included in the DCI of the first UL scheduling authorizations, described 3rd timing (U3) Accord with determining the 3rd timing (U3)；And
Retransmitted for synchronous UL, the 3rd timing (U3) is determined using implicit notification mode, wherein the 3rd timing (U3) numerical value at corresponding interval is pre-defined according to the UL/DL TTI transmitted length,
(p) one kind in the following manner, determines the 4th timing (D1)：
For the ACK/NACK feedbacks of asynchronous DL transmission, using clear and definite notification mode, by the DL scheduling authorizations transmitted The designator of included in DCI, described 4th timing (D1) determines the 4th timing (D1), and the designator is used to refer to Show the ACK/NACK of corresponding DL transmission upper line index, the upper line index indicates the 4th timing (D1) The numerical value at corresponding interval；And
For the ACK/NACK feedbacks of synchronous DL transmission, the 4th timing (D1) is determined using implicit notification mode, its Described in the numerical value at the 4th timing (D1) corresponding interval pre-defined according to UL/DL TTI transmit length.
10. method according to claim 8, wherein determining that second timing (U2) includes：
One kind in the following manner, determines second timing (U2)：
For the ACK/NACK feedbacks of asynchronous UL transmission, second timing is determined by the DCI of the 2nd UL scheduling authorizations (U2), the DCI is used to determine whether to need to be retransmitted, and user equipment carries out blind decoding by the TTI transmitted to each DL To obtain the DCI, the designator of the identifier of UL hybrid automatic repeat request process is contained in the DCI；
For the ACK/NACK feedbacks of asynchronous UL transmission, using clear and definite notification mode, by the first UL scheduling authorizations DCI included in, the designator of second timing (U2) determine second timing (U2), the designator is used for The lower line index of corresponding DL transmission is indicated, the lower line index indicates the corresponding interval of second timing (U2) Numerical value；And
For the ACK/NACK feedbacks of synchronous UL transmission, second timing (U2) is determined using implicit notification mode, its Described in the numerical value at second timing (U2) corresponding interval pre-defined according to UL/DL TTI transmit length.
11. method according to claim 9, wherein being retransmitted for asynchronous UL, when only existing for corresponding UL During the pure ACK/NACK feedbacks of transmission, using clear and definite notification mode, by included in the pure ACK/NACK feedbacks , it is described 3rd timing (U3) designator come determine it is described 3rd timing (U3) include：
The designator included in the pure ACK/NACK feedbacks, the 3rd timing (U3) uses orthogonal mask sequence One kind in the original position of row, phase place sequence or pseudo-random sequence.
12. method according to claim 9, wherein for synchronous UL re-transmissions, using implicit notification mode to determine Stating the 3rd timing (U3) also includes：
When the ACK/NACK feedbacks of the asynchronous DL transmission are pure ACK/NACK feedbacks, orthogonal mask sequence, phase are used One kind in the original position of rotatable sequence or pseudo-random sequence is used as the numerical value at the corresponding interval of the described 3rd timing (U3) Offset indicator, for the skew for the numerical value for determining the corresponding interval of the 3rd timing (U3).
13. method according to claim 9, wherein for the synchronous UL scheduling authorizations, using implicit notification mode First timing (U1) is notified to include：
First timing is determined by the offset indicator used in the DCI for the synchronous UL scheduling authorizations (U1) deviant, the offset indicator indicates up index offset, and the up index offset, which indicates described first, to be determined When (U1) deviant；Or
Pass through the finger of multiple UL in the DCI for the synchronous UL scheduling authorizations, being distributed TTI transmitted resource Show symbol to determine the deviant of first timing (U1).
14. method according to claim 9, wherein being fed back, using hidden for the ACK/NACK of the synchronous DL transmission Determine that the 4th timing (D1) also includes at least one of in the following manner containing notification mode：
Multiple ACK/NACK feedbacks to the TTI for multiple different DL transmission use multiple frequency shift (FS)s, and in scheduling The designator of frequency shift (FS) is included in the DCI of mandate, for indicating that the frequency shift (FS) of Physical Uplink Control Channel is indexed, Huo Zheke 4th timing (D1) is pre-defined with the length according to the UL/DL TTI transmitted and the DL TTI transmitted numbering The numerical value at corresponding interval；
Multiple ACK/NACK feedbacks to the TTI for multiple different DL transmission use orthogonal multiplex, use orthogonal mask sequence Arrange to index the designator being comprised in the DCI of the scheduling authorization of DL transmission, or can be according to UL/DL transmission TTI length and the TTI of DL transmission numbering pre-define the numerical value at the corresponding interval of the 4th timing (D1)；And
Multiple ACK/NACK feedbacks for the TTI of multiple different DL transmission include the feedback of combination, the scheduling transmitted in DL Descending distribution index is used in the DCI of mandate, the descending distribution index is used to indicate the corresponding ACK/ in combination feedback The position of NACK feedbacks.
15. method according to claim 10, wherein being fed back, using hidden for the ACK/NACK of the synchronous UL transmission Determine that second timing (U2) also includes at least one of following operation containing notification mode：
Multiple ACK/NACK feedbacks to the TTI for multiple different UL transmission use multiple frequency shift (FS)s, and are adjusted in UL Spend authorize DCI in comprising frequency shift (FS) designator come determine it is described second timing (U2), the designator be used for indicant Manage hybrid automatic repeat request indication channel frequency shift (FS) index, or can according to the UL/DL transmit TTI length The numerical value at the corresponding interval of second timing (U2) is pre-defined with the UL TTI transmitted numbering, or can be passed through The numerical value at the corresponding interval of blind decoding detection second timing (U2)；
Multiple ACK/NACK feedbacks to the TTI for multiple different UL transmission use orthogonal multiplex, use orthogonal mask sequence Row index the designator being comprised in the DCI of UL scheduling authorizations, or can be according to UL/DL TTI transmitted length The numerical value at the corresponding interval of second timing (U2) that the numbering for the TTI that degree and the UL are transmitted is pre-defined, to determine State the second timing (U2)；And
Multiple ACK/NACK feedbacks for the TTI of multiple different UL transmission include the feedback of combination, in UL scheduling authorizations Indexed in DCI using uplink assignment, the position for indicating the corresponding ACK/NACK feedbacks in combination feedback.
16. a kind of equipment for frequency duplex communications, including：
Determining device, the timing relationship and UL being configured to determine that between descending DL transmission and corresponding up UL transmission is transmitted Corresponding DL transmit between timing relationship at least one；
Performs device, is configured as the timing relationship according to the determination, perform UL corresponding with DL transmission transmit and At least one in DL corresponding with UL transmission transmission；
The length of the Transmission Time Interval TTI of UL transmission in wherein described frequency duplex communications length and the TTI of DL transmission It is arranged to asymmetric.
17. equipment according to claim 16, in addition to：
Setting device, the TTI for the UL transmission for being configured as changing in frequency duplex communications length or the TTI's of DL transmission Length.
18. the equipment according to claim 16 or 17, in addition to：
First choice device, at least one of is configured with selected from the following manner, determine the DL transmission with it is corresponding Timing relationship between UL transmission：
(a) for the TTI of n-th of DL transmission, by what is started after the TTI of n-th of DL transmission end or at its end The TTI selections for the UL transmission that one of foremost numbering is m are reference point, and the m+k UL TTI transmitted are defined as pair TTI, UL transmission for carrying out corresponding UL transmission the TTI of n-th of DL transmission described in Ying Yu；
(b) it is rearmost by what is started completely before the TTI of n-th of DL transmission end for the TTI of n-th of DL transmission The TTI selections for the UL transmission that one numbering is m are reference point, and described in the TTI of the m+k UL transmission is determined as corresponding to TTI, UL transmission for carrying out corresponding UL transmission the TTI of n-th of DL transmission；
(c) it is the TTI of the DL transmission at x-th of OFDM symbol OS end is as a reference point, and by xth+k Individual OS is determined as corresponding to TTI, for carrying out the TTI that the UL of corresponding UL transmission is transmitted starting of the DL transmission Position；
(d) it is reference point by the TTI selections of n-th of DL transmission, and will be opened after the TTI of the n-th+k DL transmission end Begin first UL transmission TTI as corresponding to n-th of DL transmit it is TTI, for carrying out corresponding UL biographies The TTI of defeated UL transmission；And
(e) be reference point by the TTI selections of n-th DL transmission, and by after the TTI of the n-th+k DL transmission beginning or Start at its beginning first UL transmission TTI as corresponding to n-th of DL transmit it is TTI, for carrying out institute State the TTI of the UL transmission of corresponding UL transmission.
19. equipment according to claim 18, in addition to：
Second selection device, the TTI for the UL transmission being configured to respond in frequency duplex communications length or DL transmission TTI length change：
According to the length of the TTI after changing, and a kind of mode in occupation mode (a)-(c) carrys out calculating reference point, with Determine the timing relationship between the DL transmission and corresponding UL transmission；Or
A kind of mode in occupation mode (d)-(e) determines the timing relationship between the DL transmission and corresponding UL transmission.
20. the equipment according to claim 16 or 17, in addition to：
3rd selection device, at least one of is configured with selected from the following manner, determine the UL transmission with it is corresponding Timing relationship between DL transmission：
(f) for the TTI of m-th of UL transmission, by what is started after the TTI of m-th of UL transmission end or at its end The TTI selections for the DL transmission that one of foremost numbering is n are reference point, and the TTI of the n-th+k DL transmission is defined as pair TTI, DL transmission for carrying out corresponding DL transmission the TTI of m-th of UL transmission described in Ying Yu；
(g) it is rearmost by what is started completely before the TTI of m-th of UL transmission end for the TTI of m-th of UL transmission The TTI selections for the DL transmission that one numbering is n are reference point, and the TTI of the n-th+k DL transmission are determined as corresponding to described TTI, DL transmission for carrying out corresponding DL transmission the TTI of m-th of UL transmission；
(h) it is the TTI of the UL transmission at x-th of OS end is as a reference point, and+k OS of xth are determined as corresponding to TTI, for carrying out the TTI that the DL of the DL transmission is transmitted original position of the UL transmission；
(i) it is reference point by the TTI selections of m-th of UL transmission, and will be opened after the TTI of the m+k UL transmission end Begin first DL transmission TTI as corresponding to m-th of UL transmit it is TTI, for carrying out corresponding DL biographies The TTI of defeated DL transmission；And
(j) be reference point by the TTI selections of m-th UL transmission, and by after the m+k UL TTI transmitted beginning or Start at its beginning first DL transmission TTI as corresponding to m-th of UL transmit it is TTI, for carrying out institute State the TTI of the DL transmission of corresponding DL transmission.
21. equipment according to claim 20, in addition to：
4th selection device, the TTI for the UL transmission being configured to respond in frequency duplex communications length or DL transmission TTI length change：
According to the length of the TTI after changing, and a kind of mode in occupation mode (f)-(h) carrys out calculating reference point, with Determine the timing relationship between the UL transmission and corresponding DL transmission；Or
A kind of mode in occupation mode (i)-(j) determines the timing relationship between the UL transmission and corresponding DL transmission.
22. equipment according to claim 18, wherein determining that the DL transmission is passed with corresponding UL in the determining device Include during timing relationship between defeated：
It is determined that at least one of following timing：
(k) the first timing (U1) between the first UL scheduling authorizations in the DL transmission are transmitted with corresponding UL；
(l) being retransmitted for the positive acknowledgment/NACK ACK/NACK and UL that corresponding UL is transmitted in the DL transmission Between the 3rd timing (U3)；And
(m) the 4th timing (D1) between the ACK/NACK feedbacks that the data transfer in the DL transmission is transmitted with corresponding DL.
23. equipment according to claim 20, wherein determining the timed-shutoff between the UL transmission and corresponding DL transmission System includes：
Determine the second timing (U2) between the UL transmission and the ACK/NACK feedbacks transmitted for the UL.
24. equipment according to claim 22, wherein determining that at least one of described timing (k)-(m) includes：
(n) one kind in the following manner, determines first timing (U1)：
For asynchronous UL scheduling authorizations, using clear and definite notification mode, by described transmitted for corresponding UL The designator of included in the Downlink Control Information DCI of one UL scheduling authorizations, described first timing (U1) determines described the One timing (U1), the designator is used to refer to the upper line index of corresponding UL transmission, and the upper line index indicates institute State the numerical value at the corresponding interval of the first timing (U1)；And
For synchronous UL scheduling authorizations, first timing (U1) is determined using implicit notification mode, wherein described first Regularly the numerical value at (U1) corresponding described interval is pre-defined according to the UL/DL TTI transmitted length,
(o) one kind in the following manner, determines the 3rd timing (U3)：
Retransmitted for asynchronous UL, using clear and definite notification mode, by the ACK/ transmitted for corresponding UL It is included in NACK DCI, it is described 3rd timing (U3) designator come determine it is described 3rd timing (U3), the designator The upper line index that the UL is retransmitted is used to refer to, the upper line index indicates the number at the corresponding interval of the 3rd timing (U3) Value；
Retransmit, when only existing the pure ACK/NACK feedbacks for corresponding UL transmission, use for asynchronous UL Notification mode is specified, by the designator of included in the pure ACK/NACK feedbacks, the 3rd timing (U3) come really Fixed 3rd timing (U3), the designator is used to refer to the upper line index that the UL is retransmitted, and the upper line index is indicated The numerical value at described 3rd timing (U3) corresponding interval；
Retransmitted for asynchronous UL, when only existing the ACK/NACK feedbacks for corresponding UL transmission, using bright True notification mode, passes through the instruction of included in the DCI of the first UL scheduling authorizations, described 3rd timing (U3) Accord with determining the 3rd timing (U3)；And
Retransmitted for synchronous UL, the 3rd timing (U3) is determined using implicit notification mode, wherein the 3rd timing (U3) numerical value at corresponding interval is pre-defined according to the UL/DL TTI transmitted length,
(p) one kind in the following manner, determines the 4th timing (D1)：
For the ACK/NACK feedbacks of asynchronous DL transmission, using clear and definite notification mode, by the DL scheduling authorizations transmitted The designator of included in DCI, described 4th timing (D1) determines the 4th timing (D1), and the designator is used to refer to Show the ACK/NACK of corresponding DL transmission upper line index, the upper line index indicates the 4th timing (D1) The numerical value at corresponding interval；And
For the ACK/NACK feedbacks of synchronous DL transmission, the 4th timing (D1) is determined using implicit notification mode, its Described in the numerical value at the 4th timing (D1) corresponding interval pre-defined according to UL/DL TTI transmit length.
25. equipment according to claim 23, wherein determining that second timing (U2) includes：
One kind in the following manner, determines second timing (U2)：
For the ACK/NACK feedbacks of asynchronous UL transmission, second timing is determined by the DCI of the 2nd UL scheduling authorizations (U2), the DCI is used to determine whether to need to be retransmitted, and user equipment carries out blind decoding by the TTI transmitted to each DL To obtain the DCI, the designator of the identifier of UL hybrid automatic repeat request process is contained in the DCI；
For the ACK/NACK feedbacks of asynchronous UL transmission, using clear and definite notification mode, by the first UL scheduling authorizations DCI included in, the designator of second timing (U2) determine second timing (U2), the designator is used for The lower line index of corresponding DL transmission is indicated, the lower line index indicates the corresponding interval of second timing (U2) Numerical value；And
For the ACK/NACK feedbacks of synchronous UL transmission, second timing (U2) is determined using implicit notification mode, its Described in the numerical value at second timing (U2) corresponding interval pre-defined according to UL/DL TTI transmit length.
26. equipment according to claim 24, wherein being retransmitted for asynchronous UL, when only existing for corresponding UL During the pure ACK/NACK feedbacks of transmission, using clear and definite notification mode, by included in the pure ACK/NACK feedbacks , it is described 3rd timing (U3) designator come determine it is described 3rd timing (U3) include：
The designator included in the pure ACK/NACK feedbacks, the 3rd timing (U3) uses orthogonal mask sequence One kind in the original position of row, phase place sequence or pseudo-random sequence.
27. equipment according to claim 24, wherein for synchronous UL re-transmissions, using implicit notification mode to determine Stating the 3rd timing (U3) also includes：
When the ACK/NACK feedbacks of the asynchronous DL transmission are pure ACK/NACK feedbacks, orthogonal mask sequence, phase are used One kind in the original position of rotatable sequence or pseudo-random sequence is used as the numerical value at the corresponding interval of the described 3rd timing (U3) Offset indicator, for the skew for the numerical value for determining the corresponding interval of the 3rd timing (U3).
28. equipment according to claim 24, wherein for the synchronous UL scheduling authorizations, using implicit notification mode First timing (U1) is notified to include：
First timing is determined by the offset indicator used in the DCI for the synchronous UL scheduling authorizations (U1) deviant, the offset indicator indicates up index offset, and the up index offset, which indicates described first, to be determined When (U1) deviant；Or
Pass through the finger of multiple UL in the DCI for the synchronous UL scheduling authorizations, being distributed TTI transmitted resource Show symbol to determine the deviant of first timing (U1).
29. equipment according to claim 24, wherein being fed back, using hidden for the ACK/NACK of the synchronous DL transmission Determine that the 4th timing (D1) also includes at least one of in the following manner containing notification mode：
Multiple ACK/NACK feedbacks to the TTI for multiple different DL transmission use multiple frequency shift (FS)s, and in scheduling The designator of frequency shift (FS) is included in the DCI of mandate, for indicating that the frequency shift (FS) of Physical Uplink Control Channel is indexed, Huo Zheke 4th timing (D1) is pre-defined with the length according to the UL/DL TTI transmitted and the DL TTI transmitted numbering The numerical value at corresponding interval；
Multiple ACK/NACK feedbacks to the TTI for multiple different DL transmission use orthogonal multiplex, use orthogonal mask sequence Arrange to index the designator being comprised in the DCI of the scheduling authorization of DL transmission, or can be according to UL/DL transmission TTI length and the TTI of DL transmission numbering pre-define the numerical value at the corresponding interval of the 4th timing (D1)；And
Multiple ACK/NACK feedbacks for the TTI of multiple different DL transmission include the feedback of combination, the scheduling transmitted in DL Descending distribution index is used in the DCI of mandate, the descending distribution index is used to indicate the corresponding ACK/ in combination feedback The position of NACK feedbacks.
30. equipment according to claim 25, wherein being fed back, using hidden for the ACK/NACK of the synchronous UL transmission Determine that second timing (U2) also includes at least one of following operation containing notification mode：
Multiple ACK/NACK feedbacks to the TTI for multiple different UL transmission use multiple frequency shift (FS)s, and are adjusted in UL Spend authorize DCI in comprising frequency shift (FS) designator come determine it is described second timing (U2), the designator be used for indicant Manage hybrid automatic repeat request indication channel frequency shift (FS) index, or can according to the UL/DL transmit TTI length The numerical value at the corresponding interval of second timing (U2) is pre-defined with the UL TTI transmitted numbering, or can be passed through The numerical value at the corresponding interval of blind decoding detection second timing (U2)；
Multiple ACK/NACK feedbacks to the TTI for multiple different UL transmission use orthogonal multiplex, use orthogonal mask sequence Row index the designator being comprised in the DCI of UL scheduling authorizations, or can be according to UL/DL TTI transmitted length The numerical value at the corresponding interval of second timing (U2) that the numbering for the TTI that degree and the UL are transmitted is pre-defined, to determine State the second timing (U2)；And
Multiple ACK/NACK feedbacks for the TTI of multiple different UL transmission include the feedback of combination, in UL scheduling authorizations Indexed in DCI using uplink assignment, the position for indicating the corresponding ACK/NACK feedbacks in combination feedback.
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