CN101674162A - Method and device for scrambling data of physical uplink control channel in multi-antenna system - Google Patents

Abstract

The invention discloses a method for scrambling data of a physical uplink control channel (PUCCH) in a multi-antenna system, comprising the following steps: allocating orthogonal resource for a user terminal, rotating the PUCCH data of a user terminal adjacent to the index number of the channel of the allocated orthogonal resource with different phases, and sending the rotated PUCCH data. The invention also discloses a device for scrambling data of the physical uplink control channel in the multi-antenna system, comprising an allocation unit, a scrambling unit and a sending unit, wherein the allocating unit is used for allocating resource for a user terminal; the scrambling unit is used for rotating the PUCCH data of the user terminal adjacent to the index number of the channel of the allocated orthogonal resource with different phases; and the sending unit is used for sending data scrambled by the scrambling unit. The invention greatly reduces the signal interference between the userterminals in adjacent circular shift sequences, and leads a receiving end to ensure the detection performance of ACK/NACK/DTX.

Description

The data scrambling method and apparatus of Physical Uplink Control Channel in the multiaerial system

Technical field

The present invention relates to the data scrambling technology of Physical Uplink Control Channel (PUCCH, Physical Uplink Control Channel), relate in particular to the data scrambling method and apparatus of Physical Uplink Control Channel in a kind of multiaerial system.

Background technology

In radio communication, if all use many antennas at transmitting terminal and receiving terminal, can take the mode of spatial reuse to obtain higher message transmission rate, the different data of the i.e. emission of different antennae position on the identical running time-frequency resource of transmitting terminal, owing to can estimate each channel by channel estimating at receiving terminal, even therefore each antenna is launched different data, through multiple-input and multiple-output (MIMO, Multiple InputMultiple Output) after the signal matrix, still can demodulate emission data on each antenna at receiving terminal.

The MIMO technology mainly comprises spatial reuse, wave beam forming and transmit diversity technique.The cardinal principle of transmission diversity is to utilize the weak correlation of space channel, and the selectivity on binding time/frequency for the transmission of signal provides more copy, improves the reliability of signal transmission, thereby improves the signal to noise ratio of received signal.Transmit diversity technique has a lot, comprise and send diversity, receive diversity, space-time block code (STBC, Space Time BlockCode), empty block code (SFBC frequently, Space Frequency Block Code), circulation delay diversity (CDD, Cyclic Delay Diversity) and antenna switched diversity etc.

Long evolving system (LTE, Long Term Evolution) uplink physical channel comprises Physical Random Access Channel (PRACH, Physical Random Access Channel), Physical Shared Channel (PUSCH, Physical uplink shared channel), PUCCH.Wherein, the PUCCH channel format can be divided into two big classes, and totally six kinds: the first kind comprises three kinds of forms, i.e. format1, format1a, format1b, and second class equally also comprises three kinds of forms, i.e. format2, format2a, format2b.First kind PUCCH is used for transmitting and scheduling request (SR, Scheduling Request) and confirm (ACK, Acknowledgement)/non-affirmation (NACK, Negative Acknowledgement) signaling, wherein, format 1 is used to transmit the ACK/NACK that ACK/NACK, format 1b that SR, format 1a be used to transmit single codeword stream are used to transmit two streams of code words.In addition, when user terminal demodulation descending control signaling was failed, thinking did not have downlink data, at this moment can feeding back ACK/NACK, this situation be called continuous transmission (DTX, DiscontinuousTransmission).The second class PUCCH is mainly used in transmission channel quality indication (CQI, ChannelQuality Indicator), wherein, 2 transmission of format CQI, format 2a is used for transmitting simultaneously the ACK/NACK of CQI and 1bit, and format 2b is used for transmitting simultaneously the ACK/NACK of CQI and 2bits.The minimum index of the logic channel index of first kind PUCCH shared resource in a time slot and down control channel unit (CCE, Control Channel Element) is relevant, is dynamic change; The logic channel index of the second class PUCCH shared resource in a time slot is to be notified to all UE in the sub-district by broadcast channel, is semi-static configuration.In addition, for fear of the waste of sign indicating number resource, the LTE system has also defined mixing RB, the multiplexing first kind and the second class PUCCH channel.Whether exist mixing RB to dispose in the system, and in a time slot, have one to mix RB at most.Fig. 1 is the carrying schematic diagram of PUCCH channel, and as shown in Figure 1, in common sub-frame of uplink, PUCCH is positioned at the both sides of PUSCH frequency band, is respectively two class PUCCH shown in cross spider zone among the figure and the vertical line zone.

The ACK/NACK data of the PUCCH of the first kind adopt modulation system as shown in table 1, and for the SR signaling, are modulated into d (0)=1.

Table 1

The PUCCH channel data of second class then adopts the Quadrature Phase Shift Keying shown in the table 2 (QPSK, Quadrature Phase Shift Keying) mode to modulate.

Table 2

For the PUCCH channel, different subscriber equipment (UE, User Equipment) be by code division multiplexing (CDM, Code Division Multiplexing)) or the mode of frequency division multiplexing (FDM, FrequencyDivision Multiplexing) carry out multiplexing.Fig. 2 is the schematic diagram of PUCCH channel orthogonal resource, as shown in Figure 2, for first kind PUCCH, available resource n_r is by three sub-resource representation (n_cs, n_oc, n_PRB), wherein n_cs represents the resource sequence number of cyclically shifted sequences (CS, Circular Shift), n_oc represents orthogonal code (OC, Orthogonal Covering) resource sequence number, n_PRB are represented the resource sequence number of Physical Resource Block (PRB, Physical Resource Block).For example, when cyclic shift be spaced apart 1 the time, each symbol of Physical Resource Block the inside has 12 cyclically shifted sequences resources, and 3 orthogonal codes are arranged, so each PRB can multiplexing 12 * 3=36 UE; When cyclic shift be spaced apart 2 the time, then each PRB can multiplexing (12/2) * 3=18 UE.The second class PUCCH, available resource n_r by two sub-resource representations (n_cs, n_PRB).

Senior Long Term Evolution (LTE-A or L TE-Advanced, Long Term Evolution-Advanced) system is the evolution system of future generation of LTE system.In order to obtain higher data rate, the terminal of LTE-Advanced system can be supported two or four transmitting antennas.In up link, user terminal is the data transmission end, and the base station is a data receiver.Two antenna transmit diversities with first kind PUCCH are example, and each terminal use will take two orthogonal resources, and will be as shown in table 3:

Table 3

When cyclic shift interval is 2, user terminal 0 take resource (0,0,0_PRB) and (2,0,0_PRB), user terminal 1 take resource (4,0,0_PRB) and (6,0,0_PRB), user terminal 2 takies resource (8,0,0_PRB) reach (10,0,0_PRB), by that analogy.Exist at receiving terminal under the situation of time slot deviation or power control deviation, under identical OC sign indicating number, can produce between the adjacent C S and disturb, can produce the data of the CS=2 quadrature spread of user terminal 0 such as the data of the CS=4 quadrature spread of user terminal 1 and to disturb, the data of the CS=8 quadrature spread of user terminal 2 can produce the data of the CS=6 quadrature spread of user terminal 1 and disturb, and these interference can cause the receiving terminal equalizer can't distinguish the signal that the signal that receives is the targeted customer or reveal the interference signal of the adjacent C S quadrature spread of coming from other user terminals.In multiaerial system, the signal of how eliminating between the different user terminals of the data of using adjacent C S quadrature spread disturbs, and is a problem to be solved.

Summary of the invention

In view of this, main purpose of the present invention is to provide the data scrambling method and apparatus of Physical Uplink Control Channel in a kind of multiaerial system, can reduce the interference between number adjacent usefulness terminal upstream data of the channel indexes of institute's Resources allocation.

For achieving the above object, technical scheme of the present invention is achieved in that

The data scrambling method of Physical Uplink Control Channel in a kind of multiaerial system comprises:

Be that user terminal distributes orthogonal resource, the phase place that the Physical Uplink Control Channel PUCCH data rotation of the user terminal that the channel indexes of the orthogonal resource that distributed is number adjacent is different also sends.

Preferably, described PUCCH is first kind PUCCH, and is described with the different phase place of PUCCH data rotation, undertaken by following formula:

Perhaps,

Wherein, n ' (n _S) be the channel resource call number, n _sBe the time-gap number in the subframe, a is pi/2 or π/4.

Preferably, described PUCCH is the second class PUCCH, and is described with the different phase place of PUCCH data rotation, undertaken by following formula:

$S\left(n_s\right)=\left\{\begin{array}{cc}1& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}2=0\\ e^{j*a}& \mathrm{otherwise}\end{array}\right.,$

Perhaps, $S\left(n_s\right)=\left\{\begin{array}{cc}{e}^{j*a}& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}2=0\\ 1& \mathrm{otherwise}\end{array}\right.$

Wherein, the channel resource that each user terminal distributed is one; N ' (n _S) be the channel resource call number, n _sBe the time-gap number in the subframe, a is pi/2 or π/4.

Preferably, described PUCCH is the second class PUCCH, and is described with the different phase place of PUCCH data rotation, undertaken by following formula:

Perhaps,

Wherein, the channel resource that each user terminal distributed is two; N ' (n _S) be the channel resource call number, n _sBe the time-gap number in the subframe, a is pi/2 or π/4.

Preferably, when described PUCCH was first kind PUCCH, described orthogonal resource comprised cyclically shifted sequences, orthogonal code and Physical Resource Block; When described PUCCH was the second class PUCCH, described orthogonal resource comprised cyclically shifted sequences and Physical Resource Block.

The data scrambling device of Physical Uplink Control Channel in a kind of multiaerial system comprises:

Allocation units are used to user terminal to distribute orthogonal resource;

Scrambling unit is used for the different phase place of PUCCH data rotation of number adjacent user terminal of the channel indexes of the orthogonal resource that will be distributed; And

Transmitting element is used to send the data after the described scrambling unit scrambling.

Preferably, described PUCCH is first kind PUCCH, and described scrambling unit carries out the different phase place of PUCCH data rotation by following formula:

Perhaps,

Wherein, n ' (n _S) be the channel resource call number, n _sBe the time-gap number in the subframe, a is pi/2 or π/4.

Preferably, described PUCCH is the second class PUCCH, and described scrambling unit carries out the different phase place of PUCCH data rotation by following formula:

$S\left(n_s\right)=\left\{\begin{array}{cc}1& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}2=0\\ e^{j*a}& \mathrm{otherwise}\end{array}\right.,$

Perhaps, $S\left(n_s\right)=\left\{\begin{array}{cc}{e}^{j*a}& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}2=0\\ 1& \mathrm{otherwise}\end{array}\right.$

Wherein, the channel resource that each user terminal distributed is one; N ' (n _S) be the channel resource call number, n _sBe the time-gap number in the subframe, a is pi/2 or π/4.

Preferably, described PUCCH is the second class PUCCH, and described scrambling unit carries out the different phase place of PUCCH data rotation by following formula:

Perhaps,

Wherein, the channel resource that each user terminal distributed is two; N ' (n _S) be the channel resource call number, n _sBe the time-gap number in the subframe, a is pi/2 or π/4.

Preferably, when described PUCCH was first kind PUCCH, described orthogonal resource comprised cyclically shifted sequences, orthogonal code and Physical Resource Block; When described PUCCH was the second class PUCCH, described orthogonal resource comprised cyclically shifted sequences and Physical Resource Block.

Among the present invention, after distributing orthogonal resource for user terminal, the data of the user terminal that the channel indexes of institute's Resources allocation wherein is number adjacent are carried out scrambling, thereby the signal that greatly reduces between the user terminal of adjacent cyclic shifted sequence disturbs, and makes receiving terminal can guarantee the detection performance of ACK/NACK/DTX.

Description of drawings

Fig. 1 is the carrying schematic diagram of PUCCH channel;

Fig. 2 is the schematic diagram of PUCCH channel orthogonal resource;

Fig. 3 is the signal scrambling emission schematic diagram of first kind PUCCH of the present invention;

Fig. 4 is the signal scrambling emission schematic diagram of the present invention second class PUCCH;

Fig. 5 launches another schematic diagram for the signal scrambling of the present invention second class PUCCH;

Fig. 6 launches a schematic diagram again for the signal scrambling of the present invention second class PUCCH;

Fig. 7 is the composition structural representation of the data scrambling device of Physical Uplink Control Channel in the multiaerial system of the present invention.

Embodiment

Basic thought of the present invention is: after distributing orthogonal resource for user terminal, the data of the user terminal that the channel indexes of institute's Resources allocation wherein is number adjacent are carried out scrambling, thereby the signal that greatly reduces between the user terminal of adjacent cyclic shifted sequence disturbs, and makes receiving terminal can guarantee the detection performance of ACK/NACK/DTX.

For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.

For first kind PUCCH, available resource n_r is by three sub-resource representations, for: (n_cs, n_oc, n_PRB); For the second class PUCCH, available resource n_r is by two sub-resource representations, for: (n_cs, n_PRB).Wherein, n_cs represents the resource sequence number of cyclically shifted sequences (CS), and n_oc represents the resource sequence number of orthogonal code (OC), the resource sequence number of n_PRB represents physical Resource Block (PRB).

Fig. 3 is the signal scrambling emission schematic diagram of first kind PUCCH of the present invention, as shown in Figure 3, PUCCH for the first kind, the scrambling process of transmitting of its data comprises: at first by the modulation system shown in the table 1 armed data are modulated, symbol d (0) after the modulation is carried out quadrature spread, promptly utilize n_r0, the n_r1 of two resources of the affiliated user terminal of institute's these data of distributing to carry out quadrature spread, again the data after the quadrature spread are carried out scrambling, data after the scrambling are carried out OC sign indicating number quadrature spread again, launch by antenna at last.Below introduce the details that each process realizes in detail.

Wherein, the symbol d (0) after the modulation is the control signaling symbols after modulating through the modulation system shown in the aforementioned table 1.

With the n_r0 quadrature spread, specifically be quadrature spread at frequency domain direction, promptly multiply each other with cyclically shifted sequences, promptly realize $y\left(n\right)=d\left(0\right)\·r_{u,v}^{\left(\mathrm{\α}\right)}\left(n\right),$ $n=\mathrm{0,1},...,N_{\mathrm{seq}}^{\mathrm{PUCCH}}-1.$ R wherein _{U, v} ^(α)(n) be the cyclically shifted sequences of resource n_r0 correspondence, N _Seq ^PUCCHLength for cyclically shifted sequences.

Scrambling process of the present invention is specially: the data after the frequency domain quadrature spread are carried out scrambling, promptly realize q (n)=S (n _s) y (n), wherein, $S\left(n_s\right)=\left\{\begin{array}{cc}1& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}4=0/1\\ e^{j*a}& \mathrm{otherwise}\end{array}\right.,$ Perhaps,

Wherein, n ' (n _S) be the call number of channel resource, n _sBe time-gap number (slot number) that a is pi/2 or π/4.

The data of the present invention after to scrambling are carried out OC sign indicating number quadrature spread, are specially: the data after the scrambling are carried out the OC sign indicating number quadrature spread of time domain direction, promptly realize

$z(m^{\′}\·N_{\mathrm{SF}}^{\mathrm{PUCCH}}\·N_{\mathrm{seq}}^{\mathrm{PUCCH}}+m\·N_{\mathrm{seq}}^{\mathrm{PUCCH}}+n)=q\left(n\right)\·w_{n_{\mathrm{oc}}}\left(m\right)$

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

$n=0,...N_{\mathrm{seq}}^{\mathrm{PUCCH}}-1$

m′＝0，1

N wherein _Seq ^PUCCHBe the length of cyclically shifted sequences,

Be the OC orthogonal code among the n_r, $m=0,...N_{\mathrm{SF}}^{\mathrm{PUCCH}}-1,$ N _SF ^PUCCHVector length for the OC orthogonal code.For example OC orthogonal code [+1+1+1+1], [+1-1+1-1], [+1-1-1+1], its vector length is 4

Fig. 4 is the signal scrambling emission schematic diagram of the present invention second class PUCCH, as shown in Figure 4, PUCCH for second class, the scrambling process of transmitting of its data is specially: at first by the modulation system shown in the table 2 armed data are modulated, symbol d (n) after the modulation is carried out quadrature spread, promptly utilize n_r0, the n_r1 of two resources of the user terminal of distributing to carry out quadrature spread respectively, again the data after the quadrature spread are carried out scrambling, launch by antenna at last.Below introduce the details that each process realizes in detail.

Symbol d (n) after the modulation is the control signaling symbols after modulating through modulation system (QPSK) as shown in table 2, while and n_r0 and n_r1 quadrature spread.Quadrature spread among the present invention promptly in the quadrature spread of frequency domain direction, multiplies each other with cyclically shifted sequences.Wherein, with the n_r0 quadrature spread, promptly realize

$y(N_{\mathrm{seq}}^{\mathrm{PUCCH}}\·n+i)=d\left(n\right)\·r_{u,v}^{\left(\mathrm{\α}\right)}\left(i\right)$

n＝0，1，...，9

$i=\mathrm{0,1},...,N_{\mathrm{sc}}^{\mathrm{RB}}-1$

Wherein, r _{U, v} ^(α)(i) be the cyclically shifted sequences of resource n_r0 correspondence, N _Seq ^PUCCHBe the length of this cyclically shifted sequences, $N_{\mathrm{sc}}^{\mathrm{RB}}=12,$ It is a number of subcarriers that the RB piece comprises.

D (n) is similar with the quadrature spread of n_r0 with quadrature spread and the d (n) of n_r1, with the r in the preceding formula _{U, v} ^(α)(i) replacing with the cyclically shifted sequences corresponding with resource n_r1 gets final product.

Scrambling of the present invention is specially: the data after the frequency domain quadrature spread are carried out scrambling, promptly realize

z(n)＝S(n _s)·y(n)

Wherein, $S\left(n_s\right)=\left\{\begin{array}{cc}1& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}2=0\\ e^{j*a}& \mathrm{otherwise}\end{array}\right.,$ Perhaps, $S\left(n_s\right)=\left\{\begin{array}{cc}{e}^{j*a}& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}2=0\\ 1& \mathrm{otherwise}\end{array}\right.,$ Perhaps,

Perhaps,

Wherein, n ' (n _S) be the channel resource call number, n _sBe time-gap number (slot number) that a is pi/2 or π/4.

Fig. 5 launches another schematic diagram for the signal scrambling of the present invention second class PUCCH, as shown in Figure 5, for the PUCCH of second class, the scrambling process of its data comprised to the modulation after symbol d0 (n) and d1 (n) respectively with n_r0, n_r1 quadrature spread, carry out scrambling again.Below introduce the details that each process realizes in detail.

Symbol d0 (n) after the modulation of the present invention, d1 (n) are respectively through the two-way control signaling symbols after the modulation of the modulation system shown in the table 2, and wherein, d0 (n) and n_r0 carry out quadrature spread, and d1 (n) and n_r1 carry out quadrature spread.Wherein, d0 (n) and n_r0 carry out quadrature spread and promptly realize

$y(N_{\mathrm{seq}}^{\mathrm{PUCCH}}\·n+i)=d0\left(n\right)\·r_{u,v}^{\left(\mathrm{\α}\right)}\left(i\right)$

n＝0，1，...，9

$i=\mathrm{0,1},...,N_{\mathrm{sc}}^{\mathrm{RB}}-1$

Wherein, r _{U, v} ^(α)(i) be the cyclically shifted sequences of resource n_r0 correspondence, N _Seq ^PUCCHBe the length of this cyclically shifted sequences, $N_{\mathrm{sc}}^{\mathrm{RB}}=12,$ It is a number of subcarriers that the RB piece comprises.D1 (n) is similar with the quadrature spread of n_r0 with quadrature spread and the d0 (n) of n_r1, with the r in the preceding formula _{U, v} ^(α)(i) replace with the cyclically shifted sequences corresponding with resource n_r1.

Again the data after the frequency domain quadrature spread are carried out scrambling, promptly realize

z(n)＝S(n _s)·y(n)

Wherein, $S\left(n_s\right)=\left\{\begin{array}{cc}1& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}2=0\\ e^{j*a}& \mathrm{otherwise}\end{array}\right.,$ Perhaps, $S\left(n_s\right)=\left\{\begin{array}{cc}{e}^{j*a}& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}2=0\\ 1& \mathrm{otherwise}\end{array}\right.,$ Perhaps,

Perhaps,

Wherein, n ' (n _S) be the channel resource call number, n _sBe time-gap number (slot number) that a is pi/2 or π/4

Fig. 6 launches a schematic diagram again for the signal scrambling of the present invention second class PUCCH, as shown in Figure 6, PUCCH for second class, the multiplexing process of transmitting of the scrambling of its data as shown in Figure 7, comprised after the modulation symbol d (0) to d (19), with the n_r0 quadrature spread, with processes such as n_r1 quadrature spread, scrambling.Wherein, symbol d (0) after the modulation, d (1) ..., d (19) is for through the control signaling symbols after the modulation of the modulation system shown in the table 2, aforesaid symbol is divided into two groups, wherein, d (0), d (1) ..., d (9) is one group, carry out quadrature spread with n_r0, and d (10), d (11) ..., d (19) is one group, carries out quadrature spread with n_r1.

Wherein, with the n_r0 quadrature spread, promptly realize

$y(N_{\mathrm{seq}}^{\mathrm{PUCCH}}\·n+i)=d\left(n\right)\·r_{u,v}^{\left(\mathrm{\α}\right)}\left(i\right)$

n＝0，1，...，9

$i=\mathrm{0,1},...,N_{\mathrm{sc}}^{\mathrm{RB}}-1$

R wherein _{U, v} ^(α)(i) be the cyclically shifted sequences of resource n_r0 correspondence, N _Seq ^PUCCHBe the length of this cyclically shifted sequences, $N_{\mathrm{sc}}^{\mathrm{RB}}=12,$ It is a number of subcarriers that the RB piece comprises.And d (10), d (11) ..., the quadrature spread of d (19) and n_r1 and d (0), d (1) ..., d (9) is similar with the quadrature spread of n_r0, with the r in the preceding formula _{U, v} ^(α)(i) replacing with the cyclically shifted sequences corresponding with resource n_r1 gets final product.

Data after the frequency domain quadrature spread are carried out scrambling, promptly realize

z(n)＝S(n _s)·y(n)

Wherein, $S\left(n_s\right)=\left\{\begin{array}{cc}1& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}2=0\\ e^{j*a}& \mathrm{otherwise}\end{array}\right.,$ Perhaps, $S\left(n_s\right)=\left\{\begin{array}{cc}{e}^{j*a}& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}2=0\\ 1& \mathrm{otherwise}\end{array}\right.,$ Perhaps,

Perhaps,

Wherein, n ' (n _S) be the channel resource call number, n _sBe time-gap number (slot number) that a is pi/2 or π/4

Fig. 7 is the composition structural representation of the data scrambling device of Physical Uplink Control Channel in the multiaerial system of the present invention, as shown in Figure 7, the data scrambling device of Physical Uplink Control Channel comprises allocation units 70, scrambling unit 71 and transmitting element 72 in the multiaerial system of the present invention, wherein, allocation units 70 are used to user terminal to distribute orthogonal resource; Scrambling unit 71 is used for the different phase place of PUCCH data rotation of number adjacent user terminal of the channel indexes of the orthogonal resource that will be distributed; Transmitting element 72 is used to send the data after the described scrambling unit scrambling.When described PUCCH was first kind PUCCH, described orthogonal resource comprised cyclically shifted sequences, orthogonal code and Physical Resource Block; When described PUCCH was the second class PUCCH, described orthogonal resource comprised cyclically shifted sequences and Physical Resource Block.

Wherein, described PUCCH is first kind PUCCH, and scrambling unit 71 carries out the different phase place of PUCCH data rotation by following formula:

Perhaps,

Wherein, n ' (n _S) be the channel resource call number, n _sBe the time-gap number in the subframe, a is pi/2 or π/4.

Described PUCCH is the second class PUCCH, and scrambling unit 71 carries out the different phase place of PUCCH data rotation by following formula:

$S\left(n_s\right)=\left\{\begin{array}{cc}1& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}2=0\\ e^{j*a}& \mathrm{otherwise}\end{array}\right.,$

Perhaps, $S\left(n_s\right)=\left\{\begin{array}{cc}{e}^{j*a}& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}2=0\\ 1& \mathrm{otherwise}\end{array}\right.$

Wherein, the channel resource that each user terminal distributed is one; N ' (n _S) be the channel resource call number, n _sBe the time-gap number in the subframe, a is pi/2 or π/4.

Described PUCCH is the second class PUCCH, and scrambling unit 71 carries out the different phase place of PUCCH data rotation by following formula:

Perhaps,

Wherein, the channel resource that each user terminal distributed is two; N ' (n _S) be the channel resource call number, n _sBe the time-gap number in the subframe, a is pi/2 or π/4.

Those skilled in the art are to be understood that, the data scrambling device of Physical Uplink Control Channel is to design for the data scrambling method that realizes Physical Uplink Control Channel in the aforesaid multiaerial system in the present invention's multiaerial system shown in Figure 7, the realization function of the each processing unit among the figure can be understood with reference to the associated description in the preceding method, the function of each processing unit can realize by the program that runs on the processor, also can realize by corresponding logical circuit.

The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.

Claims (10)

1, the data scrambling method of Physical Uplink Control Channel in a kind of multiaerial system is characterized in that, comprising:

Be that user terminal distributes orthogonal resource, the phase place that the Physical Uplink Control Channel PUCCH data rotation of the user terminal that the channel indexes of the orthogonal resource that distributed is number adjacent is different also sends.

2, method according to claim 1 is characterized in that, described PUCCH is first kind PUCCH, and is described with the different phase place of PUCCH data rotation, undertaken by following formula:

Perhaps,

Wherein, n ' (n _S) be the channel resource call number, n _sBe the time-gap number in the subframe, a is pi/2 or π/4.

3, method according to claim 1 is characterized in that, described PUCCH is the second class PUCCH, and is described with the different phase place of PUCCH data rotation, undertaken by following formula:

$S\left(n_s\right)=\left\{\begin{array}{cc}1& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}2=0\\ e^{j*a}& \mathrm{otherwise}\end{array}\right.,$

Perhaps, $S\left(n_s\right)=\left\{\begin{array}{cc}{e}^{j*a}& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}2=0\\ 1& \mathrm{otherwise}\end{array}\right.$

Wherein, the channel resource that each user terminal distributed is one; N ' (n _S) be the channel resource call number, n _sBe the time-gap number in the subframe, a is pi/2 or π/4.

4, method according to claim 1 is characterized in that, described PUCCH is the second class PUCCH, and is described with the different phase place of PUCCH data rotation, undertaken by following formula:

Perhaps,

Wherein, the channel resource that each user terminal distributed is two; N ' (n _S) be the channel resource call number, n _sBe the time-gap number in the subframe, a is pi/2 or π/4.

5, method according to claim 1 is characterized in that, when described PUCCH was first kind PUCCH, described orthogonal resource comprised cyclically shifted sequences, orthogonal code and Physical Resource Block; When described PUCCH was the second class PUCCH, described orthogonal resource comprised cyclically shifted sequences and Physical Resource Block.

6, the data scrambling device of Physical Uplink Control Channel in a kind of multiaerial system is characterized in that, comprising:

Allocation units are used to user terminal to distribute orthogonal resource;

Scrambling unit is used for the different phase place of PUCCH data rotation of number adjacent user terminal of the channel indexes of the orthogonal resource that will be distributed; And

Transmitting element is used to send the data after the described scrambling unit scrambling.

7, device according to claim 6 is characterized in that, described PUCCH is first kind PUCCH, and described scrambling unit carries out the different phase place of PUCCH data rotation by following formula:

Perhaps,

Wherein, n ' (n _S) be the channel resource call number, n _sBe the time-gap number in the subframe, a is pi/2 or π/4.

8, device according to claim 6 is characterized in that, described PUCCH is the second class PUCCH, and described scrambling unit carries out the different phase place of PUCCH data rotation by following formula:

$S\left(n_s\right)=\left\{\begin{array}{cc}1& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}2=0\\ e^{j*a}& \mathrm{otherwise}\end{array}\right.,$

Perhaps, $S\left(n_s\right)=\left\{\begin{array}{cc}{e}^{j*a}& \mathrm{if}{n}^{\′}\left(n_S\right)\mathrm{mod}2=0\\ 1& \mathrm{otherwise}\end{array}\right.$

Wherein, the channel resource that each user terminal distributed is one; N ' (n _S) be the channel resource call number, n _sBe the time-gap number in the subframe, a is pi/2 or π/4.

9, device according to claim 6 is characterized in that, described PUCCH is the second class PUCCH, and described scrambling unit carries out the different phase place of PUCCH data rotation by following formula:

Perhaps,

Wherein, the channel resource that each user terminal distributed is two; N ' (n _S) be the channel resource call number, n _sBe the time-gap number in the subframe, a is pi/2 or π/4.

10, device according to claim 6 is characterized in that, when described PUCCH was first kind PUCCH, described orthogonal resource comprised cyclically shifted sequences, orthogonal code and Physical Resource Block; When described PUCCH was the second class PUCCH, described orthogonal resource comprised cyclically shifted sequences and Physical Resource Block.

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