CN104767594A - Method and equipment for performing uplink transmission in LTE (Long Term Evolution) system - Google Patents

Abstract

The application provides a method for performing uplink transmission in an LTE (Long Term Evolution) system. According to the technical scheme provided by the application, when a second time sequence sub-frame exists in the uplink resources of the LTE system, UE judges the length of an incomplete uplink sub-frame according to a TA (Time Advance) length, the length of a guard interval in the second time sequence sub-frame and a necessary conversion interval length, and PUSCH (Physical Uplink Shared Channel) transmission on the incomplete uplink sub-frame is implemented by adopting a PUSCH transmission way starting from a second symbol and occupying a length of 13 or 11 symbols (corresponding to a conventional CP (Cyclic Prefix) and a long CP respectively) or a truncated PUSCH/PUCCH (Physical Uplink Control Channel) transmission way, or a combined PUSCH transmission way of synchronously using an idle symbol in a sub-frame before the second time sequence sub-frame and a symbol in the incomplete uplink sub-frame according to the length of the incomplete uplink sub-frame. The application also provides equipment for performing uplink transmission in an LTE network. Through application of the technical scheme of the application, the influence of the second time sequence sub-frame on the uplink transmission of the UE can be effectively lowered, and the performance of the LTE network is enhanced.

Description

The method and apparatus of uplink in LTE system

Technical field

The application relates to mobile communication technology field, and specifically, the application relates to the method and apparatus of uplink in LTE system.

Background technology

In current LTE system, downstream transmission all requires the strict time synchronization of transmitting terminal and receiving terminal.For descending, UE needs to detect primary synchronization channel and auxiliary synchronization channel, and obtain subframe timing and the radio frames timing T of community, realize the time synchronized with eNB, UE is according to the downstream signal of above-mentioned timing receipt from eNB subsequently.For up; because eNB needs the upward signal receiving multiple UE simultaneously; and the distance of this multiple UE and eNB can there are differences usually; eNB needs to adjust the time (i.e. the sub-frame of uplink timing of UE) that each UE sends upward signal; to ensure that the upward signal that different UEs sends in same sub-frame of uplink arrives the time difference of eNB in Cyclic Prefix (Cyclic Prefix, CP) protection range.ENB is by upstream time lead (the Time Advance of configuration UE, TA) timing of UE sub-frame of uplink is adjusted, for each UE, TA represents that UE sub-frame of uplink sends timing receives timing lead relative to descending sub frame, namely the sub-frame of uplink timing of UE is T+TA, as shown in Figure 1.

But in some cases, when UE communicates with other entity being different from eNB with some sub-frame of uplink, UE can change in the timing of these sub-frame of uplink, at this moment these sub-frame of uplink of this UE may overlap with follow-up sub-frame of uplink, and affect the uplink of subsequent upstream subframe.

A simple example appears in the LTE community supporting that D2D (Device to Device) communicates.According to the conclusion of current 3GPP, the D2D communication under LTE MPS process takies ascending resource, i.e. the up-link carrier of FDD community or the sub-frame of uplink of TDD cell, and in FDD system, it is T+T2 that sub-frame of uplink for D2D communication sends timing, and wherein T is that descending sub frame receives timing, and T2 is zero.That is, in FDD community, the sub-frame of uplink for D2D communication will adopt the timing of descending sub frame.Under above-mentioned scene, if UE be under RRC connection status participates in the uplink communication in D2D communication and community simultaneously, what D2D subframe adopted is that descending sub frame receives timing, i.e. T+0, and the transmission timing that the sub-frame of uplink after D2D subframe adopts is T+TA, clearly, the overlap of TA length will be there is between these two subframes.The sub-frame of uplink hereafter the subframe sequential as D2D subframe being different from normal upstream subframe is called the second sequential subframe, by as above-mentioned sub-frame of uplink because of part with subframe is overlapping before, the sub-frame of uplink that length is less than normal sub-frames is called imperfect sub-frame of uplink, as shown in Figure 2.

The length of TA and UE are from the distance dependent of eNB, in LTE system, if UE is 10km from the distance of eNB, then the time span of the TA length of this UE and the SC-FDMA symbol of a conventional CP is suitable, and the covering radius of actual LTE community may reach more than 100km, this just means, be in the UE under D2D communication and uplink communication state for one simultaneously, and that cause front and back subframe overlap different with regular upstream subframe subsequently due to D2D subframe timing may reach the SC-FDMA symbol of 10 conventional CP length, this will badly influence the uplink of above-mentioned sub-frame of uplink.

By analyzing above and can seeing, in LTE community, if UE is communicated with other entity being different from eNB by part sub-frame of uplink, the now inconsistent meeting of these sub-frame of uplink timings and regular upstream subframe timing causes the overlap of front and back subframe, form imperfect sub-frame of uplink, thus affect the uplink in these subframes.This problem will have a strong impact on the performance of LTE network, and at present still not for the solution of this problem.

Summary of the invention

The object of the application is intended at least solve one of above-mentioned technological deficiency, in particular, provide the method for uplink in a kind of LTE system, effectively to reduce the second sequential subframe to the impact of UE uplink, realize uplink at imperfect sub-frame of uplink, thus improve the performance of LTE network.

The method of uplink in a kind of LTE system that the application provides, comprising:

UE determines the length GP at protection interval in the second sequential subframe ₁and GP ₂, the length TM of required conversion interval in the second sequential subframe ₁and TM ₂, and the TA length of uplink;

UE determines the length of imperfect sub-frame of uplink;

UE carries out uplink according to the length of imperfect sub-frame of uplink according to corresponding mode.

Preferably, GP ₁and GP ₂the time span being not used in transfer of data in the second sequential subframe, GP ₁be positioned at the second sequential subframe stem, GP ₂be positioned at the second sequential subframe afterbody;

GP ₁and GP ₂length be integral multiple or the random length of SC-FDMA length or be 0, GP ₁and GP ₂length make an appointment, or UE obtains GP by receiving broadcast or rrc layer signaling ₁and GP ₂length configuration.

Preferably, TM ₁for UE forwards time span required for the second sequential subframe, TM to from regular upstream subframe ₂for the time span that UE forwards to thereafter required for regular upstream subframe from the second sequential subframe;

TM ₁and TM ₂length make an appointment, or UE obtains TM by receiving broadcast or rrc layer signaling ₁and TM ₂length configuration.

Preferably, when the second sequential subframe is D2D subframe, GP ₁=TM ₁=TM ₂=624 × Ts, GP ₂=l × T _sym-624 × Ts, or GP ₁=GP ₂=T _sym, TM ₁=TM ₂=624 × Ts;

Wherein: Ts=1/ (15000 × 2048) second, T _symbe the length of a SC-FDMA symbol, l be not less than 1 integer.

Preferably, the length T of imperfect sub-frame of uplink _nIF=T _f-TA-TM ₂+ GP ₂, wherein T _fbe the length of a subframe.

Preferably, UE carries out uplink according to the length of imperfect sub-frame of uplink according to corresponding mode and comprises:

If 0 < T _f-T _nIF, UE stops the PUSCH transmission on imperfect sub-frame of uplink.

Preferably, the method comprises further: UE stops detecting for the up DCI of imperfect sub-frame of uplink, if UE has received the up PUSCH scheduling for imperfect sub-frame of uplink, but on imperfect sub-frame of uplink, there is relation 0 < T _f-T _nIF, then UE abandons this up PUSCH scheduling.

Preferably, UE carries out uplink according to the length of imperfect sub-frame of uplink according to corresponding mode and comprises:

If 0 < T _f-T _nIF≤ T _symand described imperfect sub-frame of uplink Bu Shi community is specific and the specific SRS of UE, or described imperfect sub-frame of uplink is the specific or specific SRS of UE in community, but the PUSCH of UE is specific with community and/or UE specific SRS bandwidth does not exist overlapping possibility, then can be used for the SC-FDMA symbolic number of PUSCH transmission in described imperfect sub-frame of uplink wherein be the number of SC-FDMA symbol in a time slot, N _sRS=0;

If T _sym< T _f-T _nIF, UE stops the PUSCH transmission on described imperfect sub-frame of uplink, and stops the up DCI for described imperfect sub-frame of uplink to detect.

Preferably, at 0 < T _f-T _nIF≤ T _symwhen, comprise further:

If there is the transmission of RI or HARQ-ACK information in described imperfect sub-frame of uplink, then in channel interleaving processes, RI and HARQ-ACK information is corresponding being classified as in interleaver matrix and 0≤c _i',

Wherein c _i∈ CS;

The set CS that RI is corresponding when different CP and work as | (T _f-T _nIF)/T _sym| set { c corresponding when=1 _i' determine according to table 1:

Table 1

CP configures	CS	{c i′}
			Conventional CP	{1,4,7,10}	{0,3,6,9}
Long CP	{0,3,5,8}	{2,4,7}

The set CS that HARQ-ACK information is corresponding when different CP and work as | (T _f-T _nIF)/T _sym| set { c corresponding when=1 _i' determine according to table 2:

Table 2

CP configures	CS	{c i′}
			Conventional CP	{2,3,8,9}	{1,2,7,8}
Long CP	{1,2,6,7}	{0,1,5,6}

When PUSCH resource mapping, the SC-FDMA symbol that first SC-FDMA symbol and the demodulated reference signal of first of imperfect sub-frame of uplink time slot take is left a blank.

Preferably, UE carries out uplink according to the length of imperfect sub-frame of uplink according to corresponding mode and comprises:

If 0<T _f-T _nIF≤ m × T _sym, wherein 1≤m≤N, N is the SC-FDMA symbolic number in a normal upstream subframe, then adopt PUSCH or PUCCH of brachymemma to carry out uplink at imperfect sub-frame of uplink;

If m × T _sym<T _f-T _nIF, UE stops the PUSCH transmission on described imperfect sub-frame of uplink, and stops the up DCI for described imperfect sub-frame of uplink to detect

Preferably, PUSCH or PUCCH of described employing brachymemma carries out uplink at imperfect sub-frame of uplink and comprises:

If the PRB number that UE dispatches on described imperfect sub-frame of uplink is N ' _pRB, TBS index is I _tBS, then UE is according to (I _tBS, N _pRB) determine the transmission block size of PUSCH on imperfect sub-frame of uplink, wherein 0 < α < 1; The SC-FDMA symbolic number of PUSCH transmission is can be used in described imperfect sub-frame of uplink wherein the value of Δ is by T _f-T _nIFand N _sRSvalue determine, and there is corresponding relation in the value of the value of Δ and α.

Preferably, T _f-T _nIF, N _sRS, Δ and the corresponding relation of α in conventional CP situation determine according to table 3:

Table 3

T _f-T _nIF, N _sRS, Δ and α corresponding relation in the long CP case determine according to table 4:

Table 4

Preferably, at 0<T _f-T _nIF≤ m × T _symwhen, comprise further:

If there is the transmission of RI or HARQ-ACK information in described imperfect sub-frame of uplink, then in channel interleaving processes, RI and HARQ-ACK information is corresponding in interleaver matrix is classified as { c _i' | c _i'=c _i-Δ, and 0≤c _i',

Wherein c _i∈ CS;

The set CS that RI is corresponding when different CP and { c _i' determine according to table 1:

Table 1

CP configures	CS	{c i′}
			Conventional CP	{1,4,7,10}	{0,3,6,9}
Long CP	{0,3,5,8}	{2,4,7}

The set CS that HARQ-ACK information is corresponding when different CP and { c _i' determine according to table 2:

Table 2

CP configures	CS	{c i′}
			Conventional CP	{2,3,8,9}	{1,2,7,8}
Long CP	{1,2,6,7}	{0,1,5,6}

In the resource mapping process of PUSCH demodulated reference signal, if PUSCH is conventional CP and 4≤Δ, the demodulated reference signal that then UE skips on SC-FDMA symbol that notation index is l=3 maps, if or PUSCH is long CP and 3≤Δ, the demodulated reference signal that then UE skips on SC-FDMA symbol that notation index is l=2 maps, and it is corresponding to abandon described SC-FDMA symbol individual demodulated reference signal symbol, wherein it is the demodulated reference signal number on l SC-FDMA symbol;

If or PUSCH is conventional CP and 4≤Δ, UE only calculates generation individual demodulated reference signal symbol, and to be mapped to index in imperfect sub-frame of uplink second time slot be that on the SC-FDMA symbol of l=3, if PUSCH is long CP and 3≤Δ, UE only calculates generation individual demodulated reference signal symbol, and to be mapped to index in imperfect sub-frame of uplink second time slot be on the SC-FDMA symbol of l=2;

When PUSCH resource mapping, Δ before imperfect sub-frame of uplink is used for the SC-FDMA symbol that the SC-FDMA symbol of PUSCH transfer of data and demodulated reference signal and SRS take and leaves a blank.

Preferably, UE carries out uplink according to the length of imperfect sub-frame of uplink according to corresponding mode and comprises:

If m≤FLOOR is (TA/T _sym), wherein 1≤m, be then mapped to the beginning FLOOR (TA/T of sub-frame of uplink n-1 respectively by the PUSCH comprising the demodulated reference signal of PUSCH on imperfect sub-frame of uplink _sym) the last N-FLOOR (TA/T of individual SC-FDMA symbol and imperfect sub-frame of uplink n _sym) individual SC-FDMA symbol sends, wherein, except the SC-FDMA symbol that SRS takies, n is imperfect sub-frame of uplink sequence number, and N is the SC-FDMA symbolic number in a normal upstream subframe.

Preferably, the value of described m is made an appointment, or is obtained according to the configuration of eNB by UE.

Preferably, if PUSCH is conventional CP, the value of agreement m is 4, if PUSCH is long CP, the value of agreement m is 3;

Or if PUSCH is conventional CP, the value of agreement m is 5, if PUSCH is long CP, the value of agreement m is 4.

Preferably, the method comprises further:

Corresponding to FDD system, UE receives the feedback information for the PUSCH on subframe n-1 on subframe n-1+4, and corresponding to TDD system, UE receives the feedback information for the PUSCH on subframe n-1 on subframe n-1+k, and the value of k is determined according to table 5;

Or corresponding to FDD system, UE receives the feedback information for the PUSCH on subframe n-1 on subframe n+4, corresponding to TDD system, UE receives the feedback information for the PUSCH on subframe n-1 on subframe n+k, and the value of k is determined according to table 5;

Table 5

Preferably, UE carries out uplink according to the length of imperfect sub-frame of uplink according to corresponding mode and comprises:

If 0 < T _f-T _nIF, UE stops the PUCCH on imperfect sub-frame of uplink to transmit.

Preferably, UE carries out uplink according to the length of imperfect sub-frame of uplink according to corresponding mode and comprises:

For the PUCCH transmission that form is 1/1a/1b, if 0 < T _f-T _nIF≤ m × T _sym, wherein, as the conventional CP of up employing, m=7, as the long CP of up employing, on first time slot that m=6, UE abandon imperfect sub-frame of uplink, form is the transmission of the PUCCH of 1/1a/1b, that is:

$z^{\left(\tilde{p}\right)}(m^{\&prime;}\&CenterDot;N_{\mathrm{SF}}^{\mathrm{PUCCH}}\&CenterDot;N_{\mathrm{seq}}^{\mathrm{PUCCH}}+m\&CenterDot;N_{\mathrm{seq}}^{\mathrm{PUCCH}}+n)=\left\{\begin{array}{cc}0& m^{\&prime;}=0\\ S\left(n_s\right)\&CenterDot;w_{n_{\mathrm{oc}}^{\left(\tilde{p}\right)}}\left(m\right)\&CenterDot;y^{\left(\tilde{p}\right)}\left(n\right)& m^{\&prime;}=1\end{array}\right.$

Wherein: for the PUCCH modulation symbol sequence before time domain expansion, $N_{\mathrm{seq}}^{\mathrm{PUCCH}}=12;$

for the PUCCH modulation symbol sequence after time domain expansion, for the PUCCH of general format 1/1a/1b, for the PUCCH of short form 1/1a/1b, first time slot is corresponding second time slot is corresponding

$m=\mathrm{0,1},...N_{\mathrm{SF}}^{\mathrm{PUCCH}}-1;$

As ^w then S (n _s)=1, otherwise, S (n _s)=e ^{j π 2};

for the time domain spreading sequences of PUCCH;

for time domain spreading sequences index;

N _sfor slot index;

If m × T _sym<T _f-T _nIF, UE stop the form on imperfect sub-frame of uplink be 1/1a/1b PUCCH transmission.

Preferably, at 0 < T _f-T _nIF≤ m × T _symwhen, comprise further:

If UE needs feeding back ACK/NACK on imperfect sub-frame of uplink, and described imperfect sub-frame of uplink is cycle CSI subframe, and UE when not having PUSCH to dispatch on described imperfect sub-frame of uplink, UE only adopts form to be the PUCCH feedback ACK/NACK of 1a/1b, abandons reporting of cycle CSI.

The equipment of uplink in a kind of LTE system that the application provides, comprising:

First module, for determining the length GP protecting interval in the second sequential subframe ₁and GP ₂, the length TM of required conversion interval in the second sequential subframe ₁and TM ₂, and the TA length of uplink;

Second module, for determining the length of imperfect sub-frame of uplink;

3rd module, the length according to imperfect sub-frame of uplink carries out uplink according to corresponding mode.

The technical scheme that the application proposes, UE is according to TA length, the length at interval and required conversion interval length is protected to judge the length of imperfect sub-frame of uplink in second sequential subframe, then according to the length of imperfect sub-frame of uplink, adopt the PUSCH transmission mode taking 13 or 11 symbols (corresponding respectively to conventional CP and long CP) length starting from second SC-FDMA symbol, or the PUSCH/PUCCH transmission means of brachymemma, or the PUSCH transmission simultaneously utilizing the combination PUSCH transmission mode of the idle characters before the second sequential subframe and imperfect sub-frame of uplink to realize on imperfect sub-frame of uplink, effectively can reduce the second sequential subframe to the impact of UE uplink, improve the performance of LTE network.

Accompanying drawing explanation

Fig. 1 is the Timing Advance schematic diagram that sub-frame of uplink sends that timing receives timing relative to descending sub frame;

Fig. 2 is the second sequential subframe and imperfect sub-frame of uplink schematic diagram;

Fig. 3 is the realization flow figure of the better ascending transmission method of the application one;

Fig. 4 is the composition structural representation of the equipment of uplink in the better LTE system of the application one.

Embodiment

For making the object of the application, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the application is described in further detail.

In the lte networks, because the subframe timing of the second sequential subframe is different from the timing of regular upstream subframe, cause the second sequential subframe overlapping with sub-frame of uplink afterwards, form imperfect sub-frame of uplink.In order to ensure or ensure the uplink on imperfect sub-frame of uplink as much as possible, the embodiment of the present application proposes the ascending transmission method on a kind of imperfect sub-frame of uplink, as shown in Figure 3, comprises the following steps:

Step 310:UE determines the length GP protecting interval in the second sequential subframe ₁(being positioned at the second sequential subframe stem) and GP ₂the length TM of the required conversion interval of (being arranged in the second sequential subframe afterbody), the second sequential subframe ₁and TM ₂, and the TA length of uplink.

Protection interval in second sequential subframe refers to the time span being not used in transfer of data in the second sequential subframe, GP ₁and GP ₂length can be integral multiple or the random length of SC-FDMA length, GP ₁and GP ₂length directly can be defined by standard, or UE obtains GP by receiving broadcast or rrc layer signaling ₁and GP ₂length configuration.GP ₁and GP ₂in any one can be all 0.

Required conversion interval TM ₁refer to that UE forwards the time span required for the second sequential subframe to from regular upstream subframe, TM ₂refer to that UE forwards the time span required for regular upstream subframe (may be imperfect sub-frame of uplink) thereafter to from the second sequential subframe.Such as, TM ₁can be the change-over time being sent to reception needed for the accepting state from the transmission State Transferring of regular upstream subframe to the second sequential subframe, TM ₂it can be the change-over time etc. receiving transmission needed for transmission state forwarding imperfect sub-frame of uplink to from the accepting state of the second sequential subframe.TM ₁and TM ₂directly can be defined by standard, or UE is by receiving broadcast or rrc layer signaling acquisition TM ₁and TM ₂length configuration.

Possible mode is: when the second sequential subframe is D2D subframe, because D2D subframe adopts is the timing of descending sub frame, is later than the timing (because existence of TA) of conventional subframe, GP ₁only for sending the conversion of state to accepting state, so directly GP can be defined by standard ₁=TM ₁=TM ₂=624 × Ts, GP ₂=l × T _sym-624 × Ts, for the conversion of D2D subframe to subsequent upstream subframe, wherein Ts=1/ (15000 × 2048) second, T _symbe the length of a SC-FDMA symbol, l be not less than 1 integer, such as l=1 or 2.The mode of another possibility is, GP ₁=GP ₂=T _sym, TM ₁=TM ₂=624 × Ts.

Step 320:UE calculates the length of imperfect sub-frame of uplink.

The length of imperfect sub-frame of uplink depends on TA, GP ₂, and TM ₂value, under normal circumstances, the length T of imperfect sub-frame of uplink _nIF=T _f-TA-TM ₂+ GP ₂, wherein T _fbe the length of a subframe.

Step 330:UE carries out uplink according to the length of imperfect sub-frame of uplink according to corresponding mode.

Above-mentioned uplink comprises the transmission of PUSCH, PUCCH and SRS.

The mode of uplink depends on T _nIFlength, if T _f-T _nIF≤ 0, then UE carries out uplink in a conventional manner on imperfect sub-frame of uplink.

If 0 < T _f-T _nIF, following four kinds of preferably implementation determination PUSCH transmission modes that can provide according to the application, are described in detail below respectively.

According to the implementation one of the application, PUSCH transmission mode is determined in accordance with the following methods:

UE stops the PUSCH transmission on imperfect sub-frame of uplink.Further, if current 0 < T _f-T _nIFthen UE stops detecting for the up DCI (Downlink Control Information) of imperfect sub-frame of uplink, if UE has received the up PUSCH scheduling for imperfect sub-frame of uplink, but there is relation 0 < T on imperfect sub-frame of uplink _f-T _nIF, then UE abandons this up PUSCH scheduling.

Under this mode, as long as D2D subframe and sub-frame of uplink thereafter exist overlapping, just abandon the PUSCH transmission on imperfect sub-frame of uplink.This mode, by the simple UE behavior of definition, changes the impact avoiding the second sequential subframe and bring with minimum standard.But the PUSCH transmission that this mode will have influence on from the UE in the second sequential subframe communication away from eNB.

According to the implementation two of the application, PUSCH transmission mode is determined as follows:

For PUSCH transmission, if 0 < T _f-T _nIF≤ T _symand this imperfect sub-frame of uplink Bu Shi community is specific and the specific SRS of UE, or this subframe is the specific or specific SRS of UE in community, but the PUSCH of UE is not specific with community and/or the possibility of the specific SRS bandwidth overlay of UE, then can be used for the SC-FDMA symbolic number of PUSCH transmission in imperfect sub-frame of uplink $N_{\mathrm{symb}}^{[\mathrm{PUSCH}}=(2\&CenterDot;(N_{\mathrm{symb}}^{\mathrm{UL}}-1)-N_{\mathrm{SRS}}-|(T_F-T_{\mathrm{NIF}})/T_{\mathrm{SYM}}\left|\right),$ Wherein be the number of SC-FDMA symbol in a time slot, under current scene, N _sRS=0.

If there is the transmission of RI (Rank Indication) or HARQ-ACK information in imperfect sub-frame of uplink, then in channel interleaving processes, RI and HARQ-ACK information is corresponding being classified as in interleaver matrix and 0≤c _i',

Wherein c _i∈ CS;

The set CS that RI is corresponding when different CP and work as | (T _f-T _nIF) T _sym| set { c corresponding when=1 _i' as shown in table 1;

The set CS that HARQ-ACK information is corresponding when different CP and work as | (T _f-T _nIF)/T _sym| set { c corresponding when=1 _i' as shown in table 2.

When PUSCH resource mapping, the SC-FDMA symbol that first SC-FDMA symbol and the demodulated reference signal of first of imperfect sub-frame of uplink time slot take is left a blank.

If T _sym< T _f-T _nIF, UE stops the PUSCH transmission on imperfect sub-frame of uplink.Further, UE stops detecting for the up DCI of imperfect sub-frame of uplink.

Under this mode, when an Overlapping Symbol appears in D2D subframe and sub-frame of uplink thereafter, retain PUSCH transmission, if comprise UCI in PUSCH, then the bit mapping mode of UCI adjusts accordingly; When overlap between D2D subframe and sub-frame of uplink is thereafter greater than a symbol, abandon PUSCH transmission.This mode changes the resource mapping method of PUSCH, relative to implementation one, larger on the impact of standard, but can ensure T _f-T _nIF≤ T _symtime imperfect sub-frame of uplink on PUSCH transmission.

The set CS that in the conventional CP of table 1 and long CP situation, RI information is corresponding and { c _i'

CP configures	CS	{c i′}
			Conventional CP	{1,4,7,10}	{0,3,6,9}
Long CP	{0,3,5,8}	{2,4,7}

The set CS that in the conventional CP of table 2 and long CP situation, HARQ-ACK information is corresponding and { c _i'

CP configures	CS	{c i′}
			Conventional CP	{2,3,8,9}	{1,2,7,8}
Long CP	{1,2,6,7}	{0,1,5,6}

According to the implementation three of the application, PUSCH transmission mode is determined as follows:

If 0<T _f-T _nIF≤ m × T _sym, wherein 1≤m≤N, wherein N is the SC-FDMA symbolic number in a normal upstream subframe, then adopt the PUSCH/PUCCH of brachymemma to carry out uplink at imperfect sub-frame of uplink, concrete:

If the PRB number that UE dispatches on imperfect sub-frame of uplink is N ' _pRB, TBS index is I _tBS, then UE is according to (I _tBS, N _pRB) determine the transmission block size of PUSCH on imperfect sub-frame of uplink, wherein 0 < α < 1.The SC-FDMA symbolic number of PUSCH transmission is can be used in imperfect sub-frame of uplink wherein the value of Δ is by T _f-T _nIFand N _sRSvalue determine, and there is corresponding relation in the value of the value of Δ and α.Wherein a kind of possible T _f-T _nIF, N _sRS, Δ and the α corresponding relation under conventional CP and long CP situation respectively as shown in Table 3 and Table 4.

If there is the transmission of RI or HARQ-ACK information in imperfect sub-frame of uplink, then in channel interleaving processes, RI and HARQ-ACK information is corresponding in interleaver matrix is classified as { c _i' | c _i'=c _i-Δ, and 0≤c _i', wherein c _ithe set CS that ∈ CS, RI are corresponding when different CP is as shown in table 1, shown in the set CS table 2 that HARQ-ACK information is corresponding when different CP.

In the resource mapping process of PUSCH demodulated reference signal, if PUSCH is conventional CP and 4≤Δ, or PUSCH is long CP and 3≤Δ, then UE skips notation index is that l=3 or 2(3 and 2 corresponds respectively to conventional CP and long CP) SC-FDMA symbol on demodulated reference signal map, and it is corresponding to abandon this SC-FDMA symbol individual demodulated reference signal symbol, wherein it is the demodulated reference signal number on l SC-FDMA symbol; Or UE only calculates generation individual demodulated reference signal symbol, and to be mapped to index in imperfect sub-frame of uplink second time slot be that l=3 or 2(corresponds respectively to conventional CP and long CP) SC-FDMA symbol on.When PUSCH resource mapping by imperfect sub-frame of uplink before Δ to be used for the SC-FDMA symbol that the SC-FDMA symbol of PUSCH transfer of data and demodulated reference signal and SRS take and to leave a blank.

T in the conventional CP situation of table 3 _f-T _nIF, N _sRS, Δ and α corresponding relation

T in the long CP situation of table 4 _f-T _nIF, N _sRS, Δ and α corresponding relation

If m × T _sym<T _f-T _nIF, UE stops the PUSCH transmission on imperfect sub-frame of uplink.Further, UE stops detecting for the up DCI of imperfect sub-frame of uplink.

Under this mode, adopt the PUSCH of brachymemma to carry out uplink at imperfect sub-frame of uplink, and the number for the SC-FDMA symbol of PUSCH transmission in first time slot depend on whether the DMRS in first slot is affected.Which introduces a kind of PUSCH structure of brachymemma relative to existing standard, to PUSCH transmission block size, in PUSCH resource mapping and PUSCH, the transmission means of UCI all can have an impact, but this mode can ensure the PUSCH transmission on imperfect sub-frame of uplink greatly.

According to the implementation four of the application, PUSCH transmission mode is determined as follows:

If m≤FLOOR is (TA/T _sym), wherein 1≤m, then the PUSCH on imperfect sub-frame of uplink is divided into two parts, supposes that imperfect sub-frame of uplink sequence number is n, then above-mentioned PUSCH is mapped to (comprising the demodulated reference signal of PUSCH) the beginning FLOOR (TA/T of sub-frame of uplink n-1 respectively _sym) the last N-FLOOR (TA/T of individual SC-FDMA symbol and imperfect sub-frame of uplink n _sym) the upper transmission of individual SC-FDMA symbol (except the SC-FDMA symbol that SRS takies).Now, for sub-frame of uplink n-1, in its subframe, sequence number is 0 ~ FLOOR (TA/T _sym)-1 SC-FDMA character position remain unchanged, in subframe, sequence number is FLOOR (TA/T _symit is FLOOR (TA/T that the SC-FDMA symbol of) ~ N-1 corresponds to sequence number in subframe n _symthe SC-FDMA symbol of) ~ N-1.As previously mentioned, N is the SC-FDMA symbolic number in a normal upstream subframe.

The value of above-mentioned m directly can be defined by standard, or is configured by eNB, such as, is that conventional CP or long CP, m can directly be defined as 4 or 3 by standard, to ensure the FLOOR (TA/T of sub-frame of uplink n-1 according to PUSCH _sym) individual SC-FDMA symbol exists the demodulated reference signal of PUSCH.Consider that the PUSCH on subframe n-1 may comprise the UCI carrying HARQ-ACK information, be conventional CP or long CP according to PUSCH, m can directly be defined as 5 or 4 by standard, adjacent with PUSCH demodulated reference signal to ensure the SC-FDMA symbol of the UCI bit mapping carrying HARQ-ACK information.

In these cases, the PUSCH of scheduling on subframe n-1, can send completely at subframe n, according to a kind of implementation of the application, UE at subframe n-1+4(for FDD system) or subframe n-1+k(for TDD system) the upper feedback information (comprising the PHICH/UL-Grant for above-mentioned PUSCH) received for the PUSCH on subframe n-1, wherein the value of k is as shown in table 5.This mode can ensure that the corresponding relation of ascending HARQ course and sub-frame of uplink remains unchanged, and the time interval between PUSCH subframe and feedback channel subframe shortens, this requirement that will improve eNB and UE hardware processing capability.According to another implementation of the application, UE at subframe n+4(for FDD system) or subframe n+k(for TDD system) the upper feedback information (comprising the PHICH/UL-Grant for above-mentioned PUSCH) received for the PUSCH on subframe n-1, wherein the value of k is as shown in table 5.This mode can ensure to there is time enough interval between PUSCH subframe and feedback channel subframe, but changes the corresponding relation of ascending HARQ process and sub-frame of uplink.

Table 5k and subframe n-1 mapping table

Under this mode, when TA is enough large, when can to ensure subframe n-1 on that idle SC-FDMA symbolic number is greater than 4 (guarantee exists DMRS), PUSCH is divided into two parts, and a part is before D2D subframe, and the part be left is after D2D subframe.Above-mentioned implementation changes the resource mapping method of PUSCH, defines a kind of new sub-frame of uplink structure to a certain extent, larger to criteria influences.As long as but ensure that the end of the second sequential subframe exists enough large protection interval, will be identical with conventional subframe for the physical resource dispatching the PUSCH transmission on subframe n-1, and larger TA value can be tolerated.

Need it is noted that, above-mentioned implementation two, implementation three and implementation four are also non-exclusive, and above-mentioned three kinds of implementations can combine.Such as, when PUSCH is conventional CP, if only have a SC-FDMA symbol to be subject to the impact of the second sequential subframe in imperfect sub-frame of uplink, then implementation two can be adopted to carry out PUSCH transmission; If the SC-FDMA symbolic number affected by the second sequential subframe in imperfect sub-frame of uplink is more than one, but is less than four, then implementation three can be adopted to carry out PUSCH transmission; If the SC-FDMA symbolic number affected by the second sequential subframe in imperfect sub-frame of uplink more than four, then can adopt implementation four to carry out PUSCH transmission.Any one by the above-mentioned three kinds of implementations of combination or by the PUSCH transmission mode under combination wherein this scene of obtaining of any two kinds of implementations, all within the protection range of the application.

For PUCCH transmission, this application provides the following two kinds preferably implementation:

According to a kind of implementation of the application, if 0 < T _f-T _nIF, then UE abandons the PUCCH transmission on imperfect sub-frame of uplink.That is: as long as D2D subframe and sub-frame of uplink thereafter exist overlapping, the PUCCH transmission on imperfect sub-frame of uplink is just abandoned.This mode, by the simple UE behavior of definition, changes the impact avoiding the second sequential subframe and bring with minimum standard.But the PUCCH transmission that this mode will have influence on from the UE in the second sequential subframe communication away from eNB.

According to another implementation of the application, be the PUCCH transmission of 1/1a/1b for form, if 0 < T _f-T _nIF≤ m × T _sym, wherein as the conventional CP of up employing, m=7, when adopting long CP, m=6, then UE abandon imperfect sub-frame of uplink first time slot on form be the transmission of the PUCCH of 1/1a/1b, that is:

$z^{\left(\tilde{p}\right)}(m^{\&prime;}\&CenterDot;N_{\mathrm{SF}}^{\mathrm{PUCCH}}\&CenterDot;N_{\mathrm{seq}}^{\mathrm{PUCCH}}+m\&CenterDot;N_{\mathrm{seq}}^{\mathrm{PUCCH}}+n)=\left\{\begin{array}{cc}0& m^{\&prime;}=0\\ S\left(n_s\right)\&CenterDot;w_{n_{\mathrm{oc}}^{\left(\tilde{p}\right)}}\left(m\right)\&CenterDot;y^{\left(\tilde{p}\right)}\left(n\right)& m^{\&prime;}=1\end{array}\right.$

Wherein: for the PUCCH modulation symbol sequence before time domain expansion, $N_{\mathrm{seq}}^{\mathrm{PUCCH}}=12;$

for the PUCCH modulation symbol sequence after time domain expansion, for the PUCCH of general format 1/1a/1b, for the PUCCH of short form 1/1a/1b, first time slot is corresponding second time slot is corresponding

If then S (n _s)=1, otherwise, S (n _s)=e ^{j π 2};

for the time domain spreading sequences of PUCCH;

for time domain spreading sequences index;

N _sfor slot index.

In above-mentioned formula, the detailed meanings of each parameter please refer to 3GPP TS36.211.Further, if UE needs to feed back HARQ-ACK on imperfect sub-frame of uplink, simultaneously, imperfect sub-frame of uplink is cycle CSI subframe, and UE when not having PUSCH to dispatch on imperfect sub-frame of uplink, UE only adopts form to be the PUCCH feedback ACK/NACK of 1a/1b, abandons reporting of cycle CSI.

If m × T _sym<T _f-T _nIF, then UE abandons the PUCCH transmission that the form on imperfect sub-frame of uplink is 1/1a/1b.

This defines the PUCCH structure that a kind of new form is 1/1a/1b, comparatively large on existing standard impact, but at utmost ensure that the form of UE on imperfect sub-frame of uplink is the PUCCH transmission of 1/1a/1b.

Corresponding to said method, present invention also provides the equipment of uplink in a kind of LTE system, its better composition structure as shown in Figure 4, comprising:

First module, for determining the length GP protecting interval in the second sequential subframe ₁and GP ₂, the length TM of required conversion interval in the second sequential subframe ₁and TM ₂, and the TA length of uplink;

Second module, for determining the length of imperfect sub-frame of uplink;

3rd module, the length according to imperfect sub-frame of uplink carries out uplink according to corresponding mode.

For the ease of understanding the application, below in conjunction with embody rule situation, be further described in detail as follows with the pattern that equipment room is mutual to the application's technique scheme:

Embodiment one:

In the present embodiment, standard directly defines GP ₁=TM ₁=TM ₂=624 × Ts, GP ₂=T _sym-624 × Ts, supposes that the subframe sequence number of the sub-frame of uplink after the second sequential subframe is that n, UE carry out the transmission of PUSCH on subframe n according to above-mentioned PUSCH implementation one.GP ₁=624 × Ts be meant to the SC-FDMA symbol of the second sequential subframe after move 624 × T _s.

UE with eNB sets up after RRC is connected, and UE receives eNB signaling and obtains its current TA value, if TA≤GP ₂-TM ₂, then mean that sub-frame of uplink n does not still overlap with the second sequential subframe, now UE sends PUSCH according to normal mode.If GP ₂-TM ₂<TA, then mean that subframe n overlaps with the second sequential subframe, now subframe n becomes imperfect sub-frame of uplink.If current GP ₂-TM ₂<TA, then UE stops detecting for the up DCI of sub-frame of uplink n, and abandons the PUSCH dispatch command for imperfect sub-frame of uplink received.

For the TA value that the UE be under RRC connection status of use second sequential subframe communication, eNB should be current according to this UE, determine whether subframe n overlaps with the second sequential subframe.If subframe n and the second sequential subframe overlap, eNB should stop the uplink scheduling for this subframe, and the PUSCH stopped in this subframe detects.

So far, the present embodiment terminates, and this embodiment comprehensive description UE and eNB to carry out the concrete behavior of PUSCH transmission by above-mentioned implementation one.

Embodiment two:

In the present embodiment, standard directly defines GP ₁=TM ₁=TM ₂=624 × Ts, GP ₂=2 × T _sym-624 × Ts, supposes that the subframe sequence number of the sub-frame of uplink after the second sequential subframe be n, subframe n is conventional CP, and there is not the specific and specific SRS configuration of UE in community in subframe n, and UE carries out the transmission of PUSCH on subframe n according to above-mentioned PUSCH implementation two.

If 0 < T _f-T _nIF≤ T _sym, then mean in subframe n the impact only having a SC-FDMA symbol to be subject to the second sequential subframe, the SC-FDMA symbolic number now for PUSCH transmission is 11, namely if there is not the transmission of RI or HARQ-ACK information in imperfect sub-frame of uplink, then UE generates modulation symbol and the demodulated reference signal symbol of PUSCH according to existing mode, and when resource mapping, is left a blank by first of subframe n SC-FDMA symbol.If there is the transmission of HARQ-ACK information in subframe n simultaneously, then in channel interleaving processes, UE will carry the { 1 of the UCI bit write channel interleaving matrix of HARQ-ACK information, 2,7,8} arranges, after ensureing resource mapping, the symbol that HARQ-ACK is corresponding is adjacent with demodulated reference signal.If there is the transmission of RI information in subframe n simultaneously, then in channel interleaving processes, UE will carry { 0,3,6, the 9} row of the UCI bit write channel interleaving matrix of RI information.

If T _sym< T _f-T _nIF, then the SC-FDMA symbolic number affected by the second sequential subframe in meaning subframe n is greater than one, and UE stops the PUSCH transmission on imperfect sub-frame of uplink.

So far, the present embodiment terminates.This mode can ensure to be less than 2 × T at TA _symthe transmission of PUSCH during-2 × 624 × Ts.

Embodiment three:

In the present embodiment, standard directly defines GP ₁=TM ₁=TM ₂=624 × Ts, GP ₂=2 × T _sym-624 × Ts, suppose that the subframe sequence number of the sub-frame of uplink after the second sequential subframe is n, subframe n is conventional CP, and in subframe n, there is not the specific SRS configuration specific with UE in community, the UE in varied situations above-mentioned PUSCH implementation two of corresponding employing and PUSCH implementation three carries out the transmission of PUSCH on subframe n.

If 0 < T _f-T _nIF≤ T _sym, then mean in subframe n the impact only having a SC-FDMA symbol to be subject to the second sequential subframe, the SC-FDMA symbolic number now for PUSCH transmission is 11, namely if there is not the transmission of RI or HARQ-ACK information in imperfect sub-frame of uplink, then UE generates modulation symbol and the demodulated reference signal symbol of PUSCH according to existing mode, and when resource mapping, is left a blank by first of subframe n SC-FDMA symbol.If there is the transmission of HARQ-ACK information in subframe n simultaneously, then in channel interleaving processes, UE will carry the { 1 of the UCI bit write channel interleaving matrix of HARQ-ACK information, 2,7,8} arranges, after ensureing resource mapping, the symbol that HARQ-ACK is corresponding is adjacent with demodulated reference signal.If there is the transmission of RI information in subframe n simultaneously, then in channel interleaving processes, UE will carry { 0,3,6, the 9} row of the UCI bit write channel interleaving matrix of RI information.

If T _sym< T _f-T _nIF≤ 3 × T _sym, then UE adopts the PUSCH structure of brachymemma to carry out PUSCH transmission in imperfect sub-frame of uplink.According to table 3, if the PRB number that UE dispatches on imperfect sub-frame of uplink is N ' _pRB, TBS index is I _tBS, then UE is according to (I _tBS, 0.75 × N ' _pRB) determine the transmission block size of PUSCH on imperfect sub-frame of uplink, the SC-FDMA symbolic number that can be used for PUSCH transmission in imperfect sub-frame of uplink is 9.If there is the transmission of RI or HARQ-ACK information in imperfect sub-frame of uplink, then in channel interleaving processes, row { Isosorbide-5-Nitrae, the 7} and { 0,5,6} respectively that RI and HARQ-ACK information is corresponding in interleaver matrix.When PUSCH resource mapping, the SC-FDMA symbol that front 3 SC-FDMA symbols and demodulated reference signal being used for PUSCH transfer of data and the SRS of imperfect sub-frame of uplink take is left a blank.

If 3 × T _sym< T _f-T _nIF≤ 7 × T _sym, then UE adopts the PUSCH structure of brachymemma to carry out PUSCH transmission in imperfect sub-frame of uplink.According to table 3, if the PRB number that UE dispatches on imperfect sub-frame of uplink is N ' _pRB, TBS index is I _tBS, then UE is according to (I _tBS, 0.375 × N ' _pRB) determine the transmission block size of PUSCH on imperfect sub-frame of uplink, the SC-FDMA symbolic number that can be used for PUSCH transmission in imperfect sub-frame of uplink is 6.If there is the transmission of RI or HARQ-ACK information in imperfect sub-frame of uplink, then in channel interleaving processes, row { Isosorbide-5-Nitrae } and { 2, the 3} respectively that RI and HARQ-ACK information is corresponding in interleaver matrix.Meanwhile, the demodulated reference signal that UE skips on SC-FDMA symbol that notation index is l=3 maps, and it is corresponding to abandon this SC-FDMA symbol individual demodulated reference signal symbol.When PUSCH resource mapping, the SC-FDMA symbol that front 7 SC-FDMA symbols and demodulated reference signal being used for PUSCH transfer of data and the SRS of imperfect sub-frame of uplink take is left a blank.

So far, the present embodiment terminates.This compound mode, when the affected SC-FDMA symbol of imperfect sub-frame of uplink is less than one, can determine the size of PUSCH transmission block in known manner, and standardization impact is less; When the affected SC-FDMA symbol of imperfect sub-frame of uplink is greater than one, utilize the PUSCH structure of brachymemma, the PUSCH transmission of UE when can ensure that TA is larger as far as possible.

Embodiment four:

In the present embodiment, standard directly defines GP ₁=TM ₁=TM ₂=624 × Ts, GP ₂=2 × T _sym-624 × Ts, suppose that the subframe sequence number of the sub-frame of uplink after the second sequential subframe is n, subframe n is conventional CP, and in subframe n, there is not the specific SRS configuration specific with UE in community, the UE in varied situations above-mentioned PUSCH implementation three of corresponding employing and PUSCH implementation four carries out the transmission of PUSCH on subframe n.

If 0 < T _f-T _nIF≤ 3 × T _sym, then UE adopts the PUSCH structure of brachymemma to carry out PUSCH transmission in imperfect sub-frame of uplink.According to table 3, if the PRB number that UE dispatches on imperfect sub-frame of uplink is N ' _pRB, TBS index is I _tBS, then UE is according to (I _tBS, 0.75 × N ' _pRB) determine the transmission block size of PUSCH on imperfect sub-frame of uplink, the SC-FDMA symbolic number that can be used for PUSCH transmission in imperfect subframe is 9.If there is the transmission of RI or HARQ-ACK information in imperfect sub-frame of uplink, then in channel interleaving processes, row { Isosorbide-5-Nitrae, the 7} and { 0,5,6} respectively that RI and HARQ-ACK information is corresponding in interleaver matrix.When PUSCH resource mapping, the SC-FDMA symbol that front 3 SC-FDMA symbols and demodulated reference signal being used for PUSCH transfer of data and the SRS of imperfect sub-frame of uplink take is left a blank.

If 3 × T _sym< T _f-T _nIF≤ 7 × T _sym, because GP ₂=2 × T _sym-624 × Ts, can ensure 4≤FLOOR (TA/T _sym), suppose that imperfect sub-frame of uplink sequence number is n, then the beginning FLOOR (TA/T being mapped to sub-frame of uplink n-1 respectively of PUSCH subframe n-1 dispatched _sym) the last N-FLOOR (TA/T of individual SC-FDMA symbol and imperfect sub-frame of uplink n _sym) the upper transmission of individual SC-FDMA symbol (except the SC-FDMA symbol that SRS takies).

So far, the present embodiment terminates.This compound mode, when the PUSCH demodulated reference signal of imperfect sub-frame of uplink first time slot is not affected, can utilize the PUSCH structure of brachymemma to realize the transmission of PUSCH.When the PUSCH demodulated reference signal of imperfect sub-frame of uplink first time slot is affected, because GP ₂can provide and be greater than T _symthe protection interval of length, so the number of SC-FDMA symbol available on subframe n-1 will be greater than 4, will adopt implementation four that more PUSCH can be provided to send resource.

Embodiment five:

In the present embodiment, standard directly defines GP ₁=TM ₁=TM ₂=624 × Ts, GP ₂=2 × T _sym-624 × Ts, supposes that the subframe sequence number of the sub-frame of uplink after the second sequential subframe be n, subframe n is conventional CP.

As 0 < T _f-T _nIF≤ 7 × T _symtime, it is the transmission of the PUCCH of 1/1a/1b that UE abandons form on first time slot, that is:

$z^{\left(\tilde{p}\right)}(m^{\&prime;}\&CenterDot;N_{\mathrm{SF}}^{\mathrm{PUCCH}}\&CenterDot;N_{\mathrm{seq}}^{\mathrm{PUCCH}}+m\&CenterDot;N_{\mathrm{seq}}^{\mathrm{PUCCH}}+n)=\left\{\begin{array}{cc}0& m^{\&prime;}=0\\ S\left(n_s\right)\&CenterDot;w_{n_{\mathrm{oc}}^{\left(\tilde{p}\right)}}\left(m\right)\&CenterDot;y^{\left(\tilde{p}\right)}\left(n\right)& m^{\&prime;}=1\end{array}\right.$

In above-mentioned formula, each meaning of parameters please refer to 3GPP TS36.211.If subframe n is cycle CSI feedback subframe, and UE does not have PUSCH to dispatch on sub-frame of uplink n simultaneously, UE only adopts form to be the PUCCH feedback ACK/NACK of 1a/1b, abandons reporting of cycle CSI.

If 7 × T _sym<T _f-T _nIF, then UE abandons the PUCCH transmission that the form on imperfect sub-frame of uplink is 1/1a/1b.

So far, the present embodiment terminates.Introducing a kind of form only taking a time slot in the present embodiment is the PUCCH of 1/1a/1b, comparatively large on existing standard impact, but when imperfect subframe second time slot is uninfluenced, can ensure that form is the PUCCH transmission of 1/1a/1b to a certain extent.

Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.

In addition, each functional unit in each embodiment of the application can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.

The above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.

The foregoing is only the preferred embodiment of the application, not in order to limit the application, within all spirit in the application and principle, any amendment made, equivalent replacements, improvement etc., all should be included within scope that the application protects.

Claims (21)

1. a method for uplink in LTE system, is characterized in that, comprising:

UE determines the length GP at protection interval in the second sequential subframe ₁and GP ₂, the length TM of required conversion interval in the second sequential subframe ₁and TM ₂, and the TA length of uplink;

UE determines the length of imperfect sub-frame of uplink;

UE carries out uplink according to the length of imperfect sub-frame of uplink according to corresponding mode.

2. method according to claim 1, is characterized in that:

GP ₁and GP ₂the time span being not used in transfer of data in the second sequential subframe, GP ₁be positioned at the second sequential subframe stem, GP ₂be positioned at the second sequential subframe afterbody;

GP ₁and GP ₂length be integral multiple or the random length of SC-FDMA length or be 0, GP ₁and GP ₂length make an appointment, or UE obtains GP by receiving broadcast or rrc layer signaling ₁and GP ₂length configuration.

3. method according to claim 1, is characterized in that:

TM ₁for UE forwards time span required for the second sequential subframe, TM to from regular upstream subframe ₂for the time span that UE forwards to thereafter required for regular upstream subframe from the second sequential subframe;

TM ₁and TM ₂length make an appointment, or UE obtains TM by receiving broadcast or rrc layer signaling ₁and TM ₂length configuration.

4. the method according to any one of claims 1 to 3, is characterized in that:

When the second sequential subframe is D2D subframe, GP ₁=TM ₁=TM ₂=624 × Ts, GP ₂=l × T _sym-624 × Ts, or GP ₁=GP ₂=T _sym, TM ₁=TM ₂=624 × Ts;

Wherein: Ts=1/ (15000 × 2048) second, T _symbe the length of a SC-FDMA symbol, l be not less than 1 integer.

5. method according to claim 1, is characterized in that:

The length T of imperfect sub-frame of uplink _nIF=T _f-TA-TM ₂+ GP ₂, wherein T _fbe the length of a subframe.

6. method according to claim 5, is characterized in that, UE carries out uplink according to the length of imperfect sub-frame of uplink according to corresponding mode and comprises:

If 0 < T _f-T _nIF, UE stops the PUSCH transmission on imperfect sub-frame of uplink.

7. method according to claim 6, is characterized in that:

The method comprises further: UE stops detecting for the up DCI of imperfect sub-frame of uplink, if UE has received the up PUSCH scheduling for imperfect sub-frame of uplink, but on imperfect sub-frame of uplink, there is relation 0 < T _f-T _nIF, then UE abandons this up PUSCH scheduling.

8. method according to claim 5, is characterized in that, UE carries out uplink according to the length of imperfect sub-frame of uplink according to corresponding mode and comprises:

If 0 < T _f-T _nIF≤ T _symand described imperfect sub-frame of uplink Bu Shi community is specific and the specific SRS of UE, or described imperfect sub-frame of uplink is the specific or specific SRS of UE in community, but the PUSCH of UE is specific with community and/or UE specific SRS bandwidth does not exist overlapping possibility, then can be used for the SC-FDMA symbolic number of PUSCH transmission in described imperfect sub-frame of uplink wherein be the number of SC-FDMA symbol in a time slot, N _sRS=0;

If T _sym< T _f-T _nIF, UE stops the PUSCH transmission on described imperfect sub-frame of uplink, and stops the up DCI for described imperfect sub-frame of uplink to detect.

9. method according to claim 8, is characterized in that, at 0 < T _f-T _nIF≤ T _symwhen, comprise further:

If there is the transmission of RI or HARQ-ACK information in described imperfect sub-frame of uplink, then in channel interleaving processes, RI and HARQ-ACK information is corresponding being classified as in interleaver matrix

Wherein c _i∈ CS;

The set CS that RI is corresponding when different CP and work as | (T _f-T _nIF)/T _sym| set { c corresponding when=1 _i' determine according to table 1:

Table 1

CP configures CS {c _i′} Conventional CP {1,4,7,10} {0,3,6,9} Long CP {0,3,5,8} {2,4,7}

The set CS that HARQ-ACK information is corresponding when different CP and work as | (T _f-T _nIF)/T _sym| set { c corresponding when=1 _i' determine according to table 2:

Table 2

CP configures CS {c _i′} Conventional CP {2,3,8,9} {1,2,7,8} Long CP {1,2,6,7} {0,1,5,6}

When PUSCH resource mapping, the SC-FDMA symbol that first SC-FDMA symbol and the demodulated reference signal of first of imperfect sub-frame of uplink time slot take is left a blank.

10. method according to claim 5, is characterized in that, UE carries out uplink according to the length of imperfect sub-frame of uplink according to corresponding mode and comprises:

If 0<T _f-T _nIF≤ m × T _sym, wherein 1≤m≤N, N is the SC-FDMA symbolic number in a normal upstream subframe, then adopt PUSCH or PUCCH of brachymemma to carry out uplink at imperfect sub-frame of uplink;

If m × T _sym<T _f-T _nIF, UE stops the PUSCH transmission on described imperfect sub-frame of uplink, and stops the up DCI for described imperfect sub-frame of uplink to detect

11. methods according to claim 10, is characterized in that, PUSCH or PUCCH of described employing brachymemma carries out uplink at imperfect sub-frame of uplink and comprise:

If the PRB number that UE dispatches on described imperfect sub-frame of uplink is N ' _pRB, TBS index is I _tBS, then UE is according to (I _tBS, N _pRB) determine the transmission block size of PUSCH on imperfect sub-frame of uplink, wherein 0 < α < 1; The SC-FDMA symbolic number of PUSCH transmission is can be used in described imperfect sub-frame of uplink wherein the value of Δ is by T _f-T _nIFand N _sRSvalue determine, and there is corresponding relation in the value of the value of Δ and α.

12. methods according to claim 11, is characterized in that:

T _f-T _nIF, N _sRS, Δ and the corresponding relation of α in conventional CP situation determine according to table 3:

Table 3

T _f-T _nIF, N _sRS, Δ and α corresponding relation in the long CP case determine according to table 4:

Table 4

13. methods according to claim 11, is characterized in that, at 0<T _f-T _nIFxm × T _symwhen, comprise further:

If there is the transmission of RI or HARQ-ACK information in described imperfect sub-frame of uplink, then in channel interleaving processes, RI and HARQ-ACK information is corresponding in interleaver matrix is classified as { c _i' | c _i'=c _i-Δ, and 0≤c _i',

Wherein c _i∈ CS;

The set CS that RI is corresponding when different CP and { c _i' determine according to table 1:

Table 1

CP configures CS {c _i′} Conventional CP {1,4,7,10} {0,3,6,9} Long CP {0,3,5,8} {2,4,7}

The set CS that HARQ-ACK information is corresponding when different CP and { c _i' determine according to table 2:

Table 2

CP configures CS {c _i′} Conventional CP {2,3,8,9} {1,2,7,8} Long CP {1,2,6,7} {0,1,5,6}

In the resource mapping process of PUSCH demodulated reference signal, if PUSCH is conventional CP and 4≤Δ, the demodulated reference signal that then UE skips on SC-FDMA symbol that notation index is l=3 maps, if or PUSCH is long CP and 3≤Δ, the demodulated reference signal that then UE skips on SC-FDMA symbol that notation index is l=2 maps, and it is corresponding to abandon described SC-FDMA symbol individual demodulated reference signal symbol, wherein it is the demodulated reference signal number on l SC-FDMA symbol;

If or PUSCH is conventional CP and 4≤Δ, UE only calculates generation individual demodulated reference signal symbol, and to be mapped to index in imperfect sub-frame of uplink second time slot be that on the SC-FDMA symbol of l=3, if PUSCH is long CP and 3≤Δ, UE only calculates generation individual demodulated reference signal symbol, and to be mapped to index in imperfect sub-frame of uplink second time slot be on the SC-FDMA symbol of l=2;

When PUSCH resource mapping, Δ before imperfect sub-frame of uplink is used for the SC-FDMA symbol that the SC-FDMA symbol of PUSCH transfer of data and demodulated reference signal and SRS take and leaves a blank.

14. methods according to claim 5, is characterized in that, UE carries out uplink according to the length of imperfect sub-frame of uplink according to corresponding mode and comprises:

If m≤FLOOR is (TA/T _sym), wherein 1≤m, be then mapped to the beginning FLOOR (TA/T of sub-frame of uplink n-1 respectively by the PUSCH comprising the demodulated reference signal of PUSCH on imperfect sub-frame of uplink _sym) the last N-FLOOR (TA/T of individual SC-FDMA symbol and imperfect sub-frame of uplink n _sym) individual SC-FDMA symbol sends, wherein, except the SC-FDMA symbol that SRS takies, n is imperfect sub-frame of uplink sequence number, and N is the SC-FDMA symbolic number in a normal upstream subframe.

15. methods according to claim 14, is characterized in that:

The value of described m is made an appointment, or is obtained according to the configuration of eNB by UE.

16. methods according to claim 15, is characterized in that:

If PUSCH is conventional CP, the value of agreement m is 4, if PUSCH is long CP, the value of agreement m is 3;

Or if PUSCH is conventional CP, the value of agreement m is 5, if PUSCH is long CP, the value of agreement m is 4.

17. methods according to claim 14, it is characterized in that, the method comprises further:

Corresponding to FDD system, UE receives the feedback information for the PUSCH on subframe n-1 on subframe n-1+4, and corresponding to TDD system, UE receives the feedback information for the PUSCH on subframe n-1 on subframe n-1+k, and the value of k is determined according to table 5;

Or corresponding to FDD system, UE receives the feedback information for the PUSCH on subframe n-1 on subframe n+4, corresponding to TDD system, UE receives the feedback information for the PUSCH on subframe n-1 on subframe n+k, and the value of k is determined according to table 5;

Table 5

18. methods according to claim 5, is characterized in that, UE carries out uplink according to the length of imperfect sub-frame of uplink according to corresponding mode and comprises:

If 0 < T _f-T _nIF, UE stops the PUCCH on imperfect sub-frame of uplink to transmit.

19. methods according to claim 5, is characterized in that, UE carries out uplink according to the length of imperfect sub-frame of uplink according to corresponding mode and comprises:

For the PUCCH transmission that form is 1/1a/1b, if 0 < T _f-T _nIF≤ m × T _sym, wherein, as the conventional CP of up employing, m=7, as the long CP of up employing, on first time slot that m=6, UE abandon imperfect sub-frame of uplink, form is the transmission of the PUCCH of 1/1a/1b, that is:

$z^{\left(\tilde{p}\right)}(m^{\&prime;}\&CenterDot;N_{\mathrm{SF}}^{\mathrm{PUCCH}}\&CenterDot;N_{\mathrm{seq}}^{\mathrm{PUCCH}}+m\&CenterDot;N_{\mathrm{seq}}^{\mathrm{PUCCH}}+n)=\left\{\begin{array}{cc}0& m^{\&prime;}=0\\ S\left(n_s\right)\&CenterDot;w_{n_{\mathrm{oc}}^{\left(\tilde{p}\right)}}\left(m\right)\&CenterDot;y^{\left(\tilde{p}\right)}\left(n\right)& m^{\&prime;}=1\end{array}\right.$

Wherein: for the PUCCH modulation symbol sequence before time domain expansion, $N_{\mathrm{seq}}^{\mathrm{PUCCH}}=12;$

for the PUCCH modulation symbol sequence after time domain expansion, for the PUCCH of general format 1/1a/1b, for the PUCCH of short form 1/1a/1b, first time slot is corresponding second time slot is corresponding

$m=\mathrm{0,1},...N_{\mathrm{SF}}^{\mathrm{PUCCH}}-1;$

If then S (n _s)=1, otherwise, S (n _s)=e ^{j π 2};

for the time domain spreading sequences of PUCCH;

for time domain spreading sequences index;

N _sfor slot index;

If m × T _sym<T _f-T _nIF, UE stop the form on imperfect sub-frame of uplink be 1/1a/1b PUCCH transmission.

20. methods according to claim 19, is characterized in that, at 0 < T _f-T _nIF≤ m × T _symwhen, comprise further:

If UE needs feeding back ACK/NACK on imperfect sub-frame of uplink, and described imperfect sub-frame of uplink is cycle CSI subframe, and UE when not having PUSCH to dispatch on described imperfect sub-frame of uplink, UE only adopts form to be the PUCCH feedback ACK/NACK of 1a/1b, abandons reporting of cycle CSI.

The equipment of uplink in 21. 1 kinds of LTE system, is characterized in that, comprising:

First module, for determining the length GP protecting interval in the second sequential subframe ₁and GP ₂, the length TM of required conversion interval in the second sequential subframe ₁and TM ₂, and the TA length of uplink;

Second module, for determining the length of imperfect sub-frame of uplink;

3rd module, the length according to imperfect sub-frame of uplink carries out uplink according to corresponding mode.