CN102036291B - Method and device for processing channel quality report of backhaul link - Google Patents

Abstract

The invention provides a method for processing the channel quality report of a backhaul link, comprising the following steps: coding the generated channel quality report to obtain the coded information, wherein a relay station determines the amount of the coded information according to the format of a physical uplink control channel (PUCCH) for bearing the channel quality report and the modulation mode of the information of the channel quality report or the configuration indication of a base station; scrambling the coded information to obtain scrambled sequence, then modulating the scrambled sequence to obtain modulated complex value symbol sequence and then carrying out frequency domain extension to obtain the complex value symbol sequence after frequency domain extension; and mapping the complex value symbol sequence after frequency domain extension to the PUCCH physical resource configured by the system. The invention also provides a device for processing the channel quality report of the backhaul link. The method and the device effectively realize that the relay station bears the channel quality report of the backhaul link on the PUCCH and transmits the channel quality report to the base station.

Description

A kind of processing method and device of the channel quality reporting for back haul link

Technical field

The invention belongs to moving communicating field, relate in particular to a kind of processing method and device of the channel quality reporting for back haul link (Backhaul Link).

Background technology

Relaying (Relay) technology as a kind of emerging technology, has caused more and more widely and has noted, has been regarded as the key technology of B3G/4G.Because future wireless system or cellular system require to improve the network coverage, support higher rate transmission, this has proposed new challenge to wireless communication technology.Meanwhile, the cost issues of system building and maintenance is more outstanding.Along with the increase of transmission rate and communication distance, it is outstanding that the energy consumption issues of battery also becomes, and following radio communication will adopt higher frequency, and the pathloss attenuation causing is thus more serious.By relaying technique, traditional one hop link can be divided into a plurality of multi-hop links, due to Distance Shortened, this will greatly reduce path loss, contribute to improve transmission quality, expand communication range, thereby provide quicker better service for user.

Introducing relay station (Relay Node, RN) in network, as shown in Figure 1, the base station of evolution (E-UTRAN NodeB in network, eNB) link and between macrocell user (Macro User Equipment, M-UE) is called the link that direct transfers (Direct Link), and the link between base station and relay station is called back haul link, link between relay station and relay domain user (Relay User Equipment, R-UE) is called access link (Access Link).

In LTE system, for realize eNB to UE flexibly, the object such as efficient scheduling and parameter configuration, UE reports the channel quality reporting relevant to the link that direct transfers on request according to the configuration indication of eNB, comprise channel quality indication (CQI, Channel Quality Indicator), pre-coding matrix indication (PMI, Precoding Matrix Indicator) and order indication (RI, Rank Indication) information such as, eNB dispatches configuration according to the information reporting to UE.

Direct transferring on link of LTE system, it is upper that channel quality reporting is carried on Physical Uplink Control Channel (PUCCH, Physical Uplink Control Channel), is divided into PUCCH format 2/2a/2b, and its channel architecture as shown in Figure 2 and Figure 3.

When system frame structure adopts general cyclic prefix (Normal Cyclic Prefix, Normal CP) time, each subframe contains 14 SC-FDMA (Single Carrier-Frequency Division MultipleAccess, the multiplexing access of single carrier frequency division) symbol, as shown in Figure 2, be divided into 2 slot (time slot), on each slot, comprise 7 SC-FDMA symbols, between slot, carry out frequency hopping (Hopping), #0 wherein, #2, #3, #4, #6, #7, #9, #10, #11, Bearer Channel quality report on #13 symbol, remaining #1, #5, #8, on #12 symbol, shine upon pilot tone (RS, Reference Signal) signal.

When system frame structure adopts extended cyclic prefix (Extended Cyclic Prefix, Extended CP) time, every subframe contains 12 SC-FDMA symbols, as shown in Figure 3, be divided into 2 slot, on each slot, comprise 6 SC-FDMA symbols, between slot, carry out frequency hopping Hopping, Bearer Channel quality report information on #0 wherein, #1, #2, #4, #5, #6, #7, #8, #10, #11 symbol, shines upon RS signal on remaining #3, #9 symbol.

On Direct Link, UE reports eNB channel quality reporting to need according to system configuration encode, after scrambling, modulation, frequency domain expansion etc. process, be mapped on distributed PUCCH physical resource, after respective symbol position mapping RS, send to eNB in addition.Simultaneously, eNB can distribute identical PUCCH physical resource to a plurality of UE, the frequency domain expansion index CS_index using due to each UE has orthogonality, channel quality reporting that can multiplexing a plurality of UE on identical PUCCH physical resource, and relevant parameter and resource are distributed by eNB configuration indication UE.

M-UE processes the channel quality reporting generating according to the configuration indication of eNB and corresponding account form, and step is as follows:

Step 10, configuration indication gets parms

M-UE obtains the configuration indication of eNB to PUCCH relevant parameter:

N _pUCCH ⁽²⁾, for the PUCCH resource index number of Bearer Channel quality report, by high level configuration indication;

N _rB ⁽²⁾, for the bandwidth of PUCCH format 2/2a/2b, the RB (Resource Block) of take is unit, by high level configuration indication;

N _cs ⁽¹⁾in mixed RB (mixing Resource Block) for the CS_index quantity of PUCCH format 1/1a/1b, wherein mixed RB refers to be configured for and carries PUCCH format 1/1a/1b and PUCCH format 2/2a/2b, the i.e. RB of channel quality report information simultaneously.

Step 20, obtains resource distribution

According to above-mentioned configuration parameter, M-UE can obtain the resource distribution of PUCCH format 2/2a/2b according to corresponding computational methods, as follows:

2a) calculate n _pRB

First according to n _pUCCH ⁽²⁾calculate RB that the PUCCH channel configure is corresponding to call number m:

Further, according to m, calculate the RB resource number n of the R-PUCCH actual physical resources configuration distributing _pRB:

Wherein, n _sfor No. slot in radio frames, N _sc ^rBfor the contained sub-carrier number of every RB, N _rB ^uLfor the upstream bandwidth of system configuration, YiRBWei unit.

2b) calculate n ' (n _s)

According to n _pUCCH ⁽²⁾, N _cs ⁽¹⁾and N _rB ⁽²⁾calculate n ' (n _s):

Work as n _sduring mod 2=0, i.e. first slot of each subframe

$n^{\&prime;}\left(n_s\right)=\left\{\begin{array}{cc}{n}_{\mathrm{PUCCH}}^{\left(2\right)}\mathrm{mod}{N}_{\mathrm{sc}}^{\mathrm{RB}}& \mathrm{if}{n}_{\mathrm{PUCCH}}^{\left(2\right)}<N_{\mathrm{sc}}^{\mathrm{RB}}{N}_{\mathrm{RB}}^{\left(2\right)}\\ (n_{\mathrm{PUCCH}}^{\left(2\right)}+N_{\mathrm{cs}}^{\left(1\right)}+1)\mathrm{mod}{N}_{\mathrm{sc}}^{\mathrm{RB}}& \mathrm{otherwise}\end{array}\right.$

Work as n _sduring mod 2=1, i.e. second of each subframe slot

$n^{\&prime;}\left(n_s\right)=\left\{\begin{array}{cc}\left[N_{\mathrm{sc}}^{\mathrm{RB}}(n^{\&prime;}(n_s-1)+1)\right]\mathrm{mod}(N_{\mathrm{sc}}^{\mathrm{RB}}+1)-1& \mathrm{if}{n}_{\mathrm{PUCCH}}^{\left(2\right)}<N_{\mathrm{sc}}^{\mathrm{RB}}{N}_{\mathrm{RB}}^{\left(2\right)}\\ (N_{\mathrm{sc}}^{\mathrm{RB}}-2-n_{\mathrm{PUCCH}}^{\left(2\right)})\mathrm{mod}{N}_{\mathrm{sc}}^{\mathrm{RB}}& \mathrm{otherwise}\end{array}\right.$

2c) calculate n _cs(n _s, l)

According to n ' (n _s) can further obtain n _cs(n _s, l):

$n_{\mathrm{cs}}(n_s,l)=(n_{\mathrm{cs}}^{\mathrm{cell}}(n_s,l)+n^{\&prime;}\left(n_s\right))\mathrm{mod}{N}_{\mathrm{SC}}^{\mathrm{RB}}$

Wherein,

$n_{\mathrm{cs}}^{\mathrm{cell}}(n_s,l)={\mathrm{\&Sigma;}}_{i=0}^{7}c({8N}_{\mathrm{symb}}^{\mathrm{UL}}\&CenterDot;n_s+8l+i)\&CenterDot;2^i$

L is the SC-FDMA symbol number in every slot, N _symb ^uLfor the SC-FDMA symbolic number comprising in every slot.

2d) calculate α (n _s, l)

According to n _cs(n _s, l) can further obtain circulation offset alpha (n _s, l):

$\mathrm{\&alpha;}(n_s,l)=2\mathrm{\&pi;}\&CenterDot;n_{\mathrm{cs}}(n_s,l)/N_{\mathrm{sc}}^{\mathrm{RB}}$

Step 30, the processing mapping of channel quality reporting

M-UE processes the channel quality reporting generating according to above-mentioned resource distribution, and is finally mapped in distributed PUCCH resource, and step is as follows:

3a) coding

M-UE encodes the channel quality reporting of generation, adopts uniform enconding mode, based on shown in table 1 (20, basic sequential coding device A).Encoder input input A bit sequence a ₀, a ₁, a ₂, a ₃..., a _a-1, coding is exported B bit sequence b ₀, b ₁, b ₂, b ₃..., b _b-1for:

$b_i=\underset{n=0}{\overset{A-1}{\mathrm{\&Sigma;}}}(a_n\&CenterDot;M_{i,n})\mathrm{mod}2$ i＝0，1，2，…，B-1.

Wherein, B=20.

Table 1 (20, A) basis of coding sequence table

i	Mi，0	Mi，1	Mi，2	Mi，3	Mi，4	Mi，5	Mi，6	Mi，7	Mi，8	Mi，9	Mi，10	Mi，11	Mi，12
														0	1	1	0	0	0	0	0	0	0	0	1	1	0
1	1	1	1	0	0	0	0	0	0	1	1	1	0
														2	1	0	0	1	0	0	1	0	1	1	1	1	1
3	1	0	1	1	0	0	0	0	1	0	1	1	1
														4	1	1	1	1	0	0	0	1	0	0	1	1	1

5	1	1	0	0	1	0	1	1	1	0	1	1	1
														6	1	0	1	0	1	0	1	0	1	1	1	1	1
7	1	0	0	1	1	0	0	1	1	0	1	1	1
														8	1	1	0	1	1	0	0	1	0	1	1	1	1
9	1	0	1	1	1	0	1	0	0	1	1	1	1
														10	1	0	1	0	0	1	1	1	0	1	1	1	1
11	1	1	1	0	0	1	1	0	1	0	1	1	1
														12	1	0	0	1	0	1	0	1	1	1	1	1	1
13	1	1	0	1	0	1	0	1	0	1	1	1	1
														14	1	0	0	0	1	1	0	1	0	0	1	0	1
15	1	1	0	0	1	1	1	1	0	1	1	0	1
														16	1	1	1	0	1	1	1	0	0	1	0	1	1
17	1	0	0	1	1	1	0	0	1	0	0	1	1
														18	1	1	0	1	1	1	1	1	0	0	0	0	0
19	1	0	0	0	0	1	1	0	0	0	0	0	0

3b) scrambling

After channel quality reporting coding, be output as 20bit coded message b (0) ..., b (19), M-UE further carries out scrambling to this information to be processed and obtains sequence after scrambling:

$\tilde{b}\left(i\right)=(b\left(i\right)+c\left(i\right))\mathrm{<figure-callout\; id="2"\; label="mod"\; filenames="H2009101778616E00022.png"\; state="\{\{state\}\}">mod</figure-callout>}2$

After scrambling, sequence table is shown

the generation method of the Gold pseudo random sequence c (i) that the length that scrambling adopts is 31 is as follows:

c(n)＝(x ₁(n+N _C)+x ₂(n+N _C))mod2

x ₁(n+31)＝(x ₁(n+3)+x ₁(n))mod2

x ₂(n+31)＝(x ₂(n+3)+x ₂(n+2)+x ₂(n+1)+x ₂(n))mod2

Wherein, N _cthe m sequence that=1600, c (i) is 31 by two groups of length generates, wherein:

The initial value of first m sequence is: x ₁(0)=1, x ₁(n)=0, n=1,2 ..., 30;

The initial value of second m sequence is expressed as: $c_{\mathrm{init}}={\mathrm{\&Sigma;}}_{i=0}^{30}{x}_2\left(i\right)\&CenterDot;2^i$

Here,

N _rNT1be the C-RNTI (Cell Radio Network Temporary Identifier, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI) of UE, N _iD ^cellit is cell ID.

3c) modulation

M-UE is by sequence after scrambling through QPSK, be modulated to 10 modulated symbol, be expressed as d (0) ..., d (9).

3d) frequency domain expansion

M-UE is to the PUCCH format 2/2a/2b beared information d of institute (0) ..., d (9) carries out frequency domain expansion and is: $z(N_{\mathrm{seq}}^{\mathrm{PUCCH}}\&CenterDot;n+i)=d\left(n\right)\&CenterDot;r_{u,v}^{\left(\mathrm{\&alpha;}\right)}\left(i\right),$ n＝0，1，...，9， $i=\mathrm{0,1},...,N_{\mathrm{sc}}^{\mathrm{RB}}-1$

Wherein, $N_{\mathrm{seq}}^{\mathrm{PUCCH}}=12;$

$r_{u,v}^{\left(\mathrm{\&alpha;}\right)}\left(n\right)=e^{\mathrm{j\&alpha;n}}{\stackrel{\&OverBar;}{r}}_{u,v}\left(n\right),$ $0\&le;n<M_{\mathrm{sc}}^{\mathrm{RS}},$ $M_{\mathrm{sc}}^{\mathrm{RS}}=N_{\mathrm{seq}}^{\mathrm{PUCCH}}$

R _{u, v} ^(α)(n) according to circulation offset parameter α (n _s, l) obtain:

$r_{u,v}^{\left(\mathrm{\&alpha;}\right)}\left(n\right)=e^{\mathrm{j\&alpha;n}}{\stackrel{\&OverBar;}{r}}_{u,v}\left(n\right),$ $0\&le;n<M_{\mathrm{sc}}^{\mathrm{RS}}$

α is α (n herein _s, l),

for basic sequence, $M_{\mathrm{sc}}^{\mathrm{RS}}=N_{\mathrm{seq}}^{\mathrm{PUCCH}}.$

3e) mapping

M-UE by z (i) sequence after time domain expansion according to first frequency domain after the order of time domain be filled into successively distributed RB to upper, finally completed the mapping of channel quality reporting to physical resource.

On Backhaul Link, because RN needs certain interval change-over time between the transmitting-receiving conversion of signal relay forwarding, RN is on the Backhaul Link sub-frame of uplink of configuration, the SC-FDMA symbolic number that can be actually used in uplink is less than the symbolic number that a subframe comprises, when Normal CP, available symbols number is less than 14, during Extended CP, be less than 12, thus the channel architecture of the Physical Uplink Control Channel of Backhaul Link (R-PUCCH) and PUCCH also different.The difference of ascending control channel structure, cannot carry out according to Direct Link method the processing of the channel quality reporting of Backhaul Link.

Summary of the invention

The present invention proposes a kind of processing method and device of the channel quality reporting for Backhaul Link, effectively realize RN channel quality reporting is carried on and on R-PUCCH, is transferred to eNB.

In order to address the above problem, the invention provides a kind of processing method of the channel quality reporting for back haul link, comprising:

Coding step, encodes and obtains coded message the channel quality reporting generating; Wherein, relay station is determined the amount of information of coded message according to the form of the Physical Uplink Control Channel for Bearer Channel quality report with to the modulation system of channel quality report information; Or, according to the configuration indication of base station, determine the amount of information of coded message;

Scrambling step, carries out scrambling processing to described coded message, obtains the sequence after scrambling;

Modulation step, modulates the sequence after described scrambling, obtains modulated complex value symbol sebolic addressing;

Frequency domain expansion step, carries out frequency domain expansion to described modulated complex value symbol sebolic addressing, obtains the complex value symbol sebolic addressing after frequency domain expansion;

Mapping step, is mapped to the complex value symbol sebolic addressing after described frequency domain expansion on the Physical Uplink Control Channel physical resource of system configuration.

Further, said method also can have following characteristics, in described coding step, uses uniform enconding or convolutional encoding to encode to the channel quality reporting generating.

Further, said method also can have following characteristics, in described scrambling step, use scramble sequence to carry out scrambling processing to described coded message, the initiation parameter of described scramble sequence is determined according to the relay station sign of described relay station and/or the cell ID of community, described relay station place.

Further, said method also can have following characteristics, in described modulation step, and the form selecting modulation mode by relay station basis for the Physical Uplink Control Channel of Bearer Channel quality report, or determine modulation system according to the configuration indication of base station.

Further, said method also can have following characteristics, in described frequency domain expansion step, use frequency domain expansion sequence to carry out frequency domain expansion to described modulated complex value symbol sebolic addressing, described frequency domain expansion sequence is determined according to one or more in following parameter: the cell ID of community, relay station place, system configuration are to the resource index n of the respective physical ascending control channel of relay station _r-PUCCH ⁽²⁾, high-rise configuration parameter N _cs ⁽¹⁾and N _rB ⁽²⁾.

The present invention also provides a kind of processing unit of the channel quality reporting for back haul link, comprising:

Coding module, for encoding and obtain coded message the channel quality reporting generating; Wherein, coding module is determined the amount of information of coded message according to the form of the Physical Uplink Control Channel for Bearer Channel quality report with to the modulation system of channel quality report information; Or, according to the configuration indication of base station, determine the amount of information of coded message;

Scrambling module, for described coded message is carried out to scrambling processing, obtains the sequence after scrambling;

Modulation module, for the sequence after described scrambling is modulated, obtains modulated complex value symbol sebolic addressing;

Frequency domain expansion module, for described modulated complex value symbol sebolic addressing is carried out to frequency domain expansion, obtains the complex value symbol sebolic addressing after frequency domain expansion;

Mapping block, for being mapped to the complex value symbol sebolic addressing after described frequency domain expansion the Physical Uplink Control Channel physical resource of system configuration.

Further, said apparatus also can have following characteristics, and described coding module, for being used uniform enconding or convolutional encoding to encode to the channel quality reporting generating.

Further, said apparatus also can have following characteristics, described scrambling module, is used described scramble sequence to carry out scrambling processing to described coded message by the initiation parameter of scramble sequence for determining according to the cell ID of relay station sign and/or community, relay station place.

Further, said apparatus also can have following characteristics, described modulation module, and the form selecting modulation mode for basis for the Physical Uplink Control Channel of Bearer Channel quality report, or determine modulation system according to the configuration indication of base station.

Further, said apparatus also can have following characteristics, described frequency domain expansion module, for according to one or more definite frequency domain expansion sequence of following parameter: the cell ID of community, relay station place, system configuration are to the resource index n of the respective physical ascending control channel of relay station _r-PUCCH ⁽²⁾, high-rise configuration parameter N _cs ⁽¹⁾and N _rB ⁽²⁾, use described frequency domain expansion sequence to carry out frequency domain expansion to described modulated complex value symbol sebolic addressing.

The present invention proposes a kind of processing method and device of the channel quality reporting for Backhaul Link, effectively realize RN the channel quality reporting of Backhaul Link is carried on and on R-PUCCH, is transferred to eNB.In addition, because Backhaul Link generally has the channel condition that is obviously better than Direct Link, and the up emissivities of RN are also better than UE, the present invention makes full use of Backhaul Link channel condition, assists eNB to improve Backhaul Link scheduling of resource allocative efficiency.

Accompanying drawing explanation

Fig. 1 is junction network structural representation;

Fig. 2 is the PUCCH structural representation of Bearer Channel quality report under normal CP in LTE system;

Fig. 3 is the PUCCH structural representation of Bearer Channel quality report under extended CP in LTE system;

Fig. 4 is that the RB of PUCCH in LTE system is to configuration schematic diagram;

R-PUCCH format 2 channel architecture one schematic diagrames when Fig. 5 is Normal CP;

R-PUCCH format 2 channel architecture two schematic diagrames when Fig. 6 is Normal CP;

R-PUCCH format 2 channel architecture three schematic diagrames when Fig. 7 is Normal CP;

R-PUCCH format 2 channel architecture one schematic diagrames when Fig. 8 is Extended CP;

R-PUCCH format 2 channel architecture two schematic diagrames when Fig. 9 is Extended CP;

R-PUCCH format 2 channel architecture three schematic diagrames when Figure 10 is Extended CP;

Figure 11 is that the present invention is for the process flow figure of the channel quality reporting of back haul link;

Figure 12 is that the present invention is for the processing unit block diagram of the channel quality reporting of back haul link.

Embodiment

The R-PUCCH physical resource of eNB configuration indication RN, the RB obtaining according to call number m to the PUCCH physical resource RB of resource and M-UE to two ends in system bandwidth equally, R-PUCCH and PUCCH can configure multiplexing identical RB on, also can distribute independently RB to resource for R-PUCCH.

R-PUCCH channel architecture for Bearer Channel quality report has multiple, when system adopts normal CP, there are three kinds of structures, as shown in Figure 5-Figure 7, R-PUCCH format 2 channel architectures one, structure two, structure three while being called Normal CP below, the physical resource distributing is the upper RB of each slot, the RB configuring is to comprising altogether 14 SC-FDMA symbols, frequency hopping between slot, carries RS signal on the #1 in subframe, #5, #8, #12 symbol.For structure one, #0 wherein, #13 symbol can not carrying signals due to transmitting-receiving interval change-over time of RN, #2, #3, Bearer Channel quality report on #4, #6, #7, #9, #10, #11 symbol.For structure two, #13 symbol can not carrying signal due to transmitting-receiving interval change-over time of RN, #0, #2, #3, Bearer Channel quality report on #4, #6, #7, #9, #10, #11 symbol.For structure three, #0 symbol can not carrying signal due to transmitting-receiving interval change-over time of RN, #2, #3, Bearer Channel quality report on #4, #6, #7, #9, #10, #11, #13 symbol.

When system adopts extended CP, there are three kinds of structures, as Figure 8-Figure 10, R-PUCCH format 2 channel architectures one, structure two, structure three while being called Extended CP below, the physical resource distributing is the upper RB of each slot, the RB configuring is to comprising altogether 12 SC-FDMA symbols, and frequency hopping between slot, carries RS signal on the #3 in subframe, #9 symbol.For structure one, #0 wherein, #11 symbol can not carrying signals due to transmitting-receiving interval change-over time of RN, #1, #2, #4, Bearer Channel quality report on #5, #6, #7, #8, #10 symbol.For structure two, #11 symbol wherein can not carrying signal due to transmitting-receiving interval change-over time of RN, #0, #1, #2, #4, Bearer Channel quality report on #5, #6, #7, #8, #10 symbol.For structure three, #0 symbol wherein can not carrying signal due to transmitting-receiving interval change-over time of RN, #1, #2, #4, Bearer Channel quality report on #5, #6, #7, #8, #10, #11 symbol.

As shown in figure 11, the processing method of the channel quality reporting for back haul link provided by the invention comprises the steps:

Step 1101, coding step, the channel quality reporting a (n) of RN to generation, n=0,1 ..., A-1 encodes, and obtains the b of coded message (i) of pbit, i=0, and 1 ..., p-1.

Coding method can adopt uniform enconding, convolutional encoding or other coding methods.

Wherein:

The channel quality information format that the amount of information A of channel quality reporting reports according to eNB concrete configuration RN is relevant, and value is positive integer.

The amount of information p of the channel quality reporting after coding, value is positive integer, by RN, according to following parameters, is determined:

R-PUCCH form for Bearer Channel quality report;

Modulation system to channel quality report information, by eNB configuration indication;

Or the value of p is by eNB configuration indication RN.

Step 1102, scrambling step, RN carries out scrambling processing to b (i):

$\tilde{b}\left(i\right)=(b\left(i\right)+c\left(i\right))\mathrm{<figure-callout\; id="2"\; label="mod"\; filenames="H2009101778616E00022.png"\; state="\{\{state\}\}">mod</figure-callout>}2,$ i＝0，1，...，p-1

Sequence table after scrambling is shown

i=0,1 ..., p-1, wherein, the initiation parameter of scramble sequence c (i) can be determined by the cell ID (Cell ID) of RN ID and/or community, RN place.

Step 1103, modulation step, RN couple modulate, obtain modulated complex value symbol sebolic addressing;

RN to above-mentioned scrambling after sequence

i=0,1, ..., p-1 modulates, modulation system can adopt Quadrature Phase Shift Keying (QPSK), eight phase phase shift keyings (8PSK), 16 phase quadrature amplitude modulation (16QAM) or 64 phase quadrature amplitude modulation (64QAM), concrete modulation system can be selected according to configured R-PUCCH form by RN, or is configured indication by eNB.Modulated modulated complex value symbol sebolic addressing is expressed as d (k), k=0, and 1 ..., K-1.Wherein K can be used for the SC-FDMA symbolic number of Bearer Channel quality report information under configured R-PUCCH channel format.

Step 1104, frequency domain expansion step, RN is to modulated complex value symbol sebolic addressing d (k), k=0,1 .., K-1 carries out frequency domain expansion and obtains the complex value symbol sebolic addressing after frequency domain expansion:

$z(N_{\mathrm{seq}}^{\mathrm{PUCCH}}\&CenterDot;k+1)=d\left(k\right)\&CenterDot;r\left(i\right)$

k＝0，1，...，K-1

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

Wherein, cyclic shift length $N_{\mathrm{seq}}^{\mathrm{PUCCH}}=12;$

R (i) is frequency domain expansion sequence, determines: the Cell ID of community, RN place, system configuration is to the resource index n of the corresponding R-PUCCH of RN according to one or more in following parameters _r-PUCCH ⁽²⁾, high-rise configuration parameter N _cs ⁽¹⁾, N _rB ⁽²⁾, wherein, n _r-PUCCH ⁽²⁾in the calculating of related resource, with n _pUCCH ⁽²⁾effect the same.

Step 1105, mapping step, RN by the complex value symbol sebolic addressing z (i) after frequency domain expansion according to first frequency domain after the order of time domain be mapped to successively on the R-PUCCH physical resource of system configuration, the R-PUCCH physical resource configuring is according to the resource index n of corresponding R-PUCCH _r-PUCCH ⁽²⁾, high-rise configuration parameter N _cs ⁽¹⁾, N _rB ⁽²⁾obtain.

RN obtains the related resource for Bearer Channel quality report according to R-PUCCH format 2 channel architectures that use and system configuration parameter, comprise physical resource, frequency domain expansion index etc., further describe implementation process of the present invention below by specific embodiment.

Embodiment mono-

RN adopts Normal CP R-PUCCH format 2 structure one Bearer Channel quality reports, and eNB is designated as the relevant parameter configuration of RN: $n_{R-\mathrm{PUCCH}}^{\left(2\right)}=7,$ $N_{\mathrm{cs}}^{\left(1\right)}=0,$ $N_{\mathrm{RB}}^{\left(2\right)}=3,$ , according to the computational methods in summary of the invention, can obtain successively other parameter as follows:

$n_{\mathrm{PRB}}=\left\{\begin{array}{cc}0& \mathrm{for\; slot}0\\ N_{\mathrm{RB}}^{\mathrm{UL}}-1& \mathrm{for\; <figure-callout\; id="1"\; label="slot"\; filenames="H2009101778616E00022.png"\; state="\{\{state\}\}">slot</figure-callout>}1\end{array}\right.$

$n^{\&prime;}\left(n_s\right)=\left\{\begin{array}{cc}7& \mathrm{for\; <figure-callout\; id="0"\; label="slot"\; filenames="H2009101778616E00022.png,H2009101778616E00034.png"\; state="\{\{state\}\}">slot</figure-callout>}0\\ 4& \mathrm{for\; <figure-callout\; id="1"\; label="slot"\; filenames="H2009101778616E00022.png"\; state="\{\{state\}\}">slot</figure-callout>}1\end{array}\right.$

$n_{\mathrm{cs}}(n_s,l)=\left\{\begin{array}{cc}(n_{\mathrm{cs}}^{\mathrm{cell}}(n_s,l)+7)\mathrm{mod}{N}_{\mathrm{sc}}^{\mathrm{RB}}& \mathrm{for\; slot}0\\ (n_{\mathrm{cs}}^{\mathrm{cell}}(n_s,l)+4)\mathrm{mod}{N}_{\mathrm{sc}}^{\mathrm{RB}}& \mathrm{for\; <figure-callout\; id="1"\; label="slot"\; filenames="H2009101778616E00022.png"\; state="\{\{state\}\}">slot</figure-callout>}1\end{array}\right.$

$\mathrm{\&alpha;}(n_s,l)=2\mathrm{\&pi;}\&CenterDot;n_{\mathrm{cs}}(n_s,l)/N_{\mathrm{sc}}^{\mathrm{RB}}$

According to above-mentioned parameter, RN carries out physical layer process and mapping to channel quality reporting, and step is as follows:

Step 120, RN is to the channel quality reporting a (n) generating, n=0,1 ..., A-1, A=11 encodes, and RN is according to the R-PUCCH form of configuration, i.e. R-PUCCH format 2 structures one, the SC-FDMA symbolic number that can be used for Bearer Channel quality report is 8, and eNB configuration indication adopts QPSK modulation system, amount of information p=16 after encoding, coding method adopts uniform enconding, and the channel quality report information sequence table after coding is shown b (i), i=0,1 ..., p-1.

$b\left(i\right)=\underset{n=0}{\overset{A-1}{\mathrm{\&Sigma;}}}(a\left(n\right)\&CenterDot;M_{i,n})\mathrm{<figure-callout\; id="2"\; label="mod"\; filenames="H2009101778616E00022.png"\; state="\{\{state\}\}">mod</figure-callout>}2;$

n＝0，1，...，A-1

i＝0，1，...，p-1

Wherein, M _{i, n}for (16, A) uniform enconding basis sequence.

Step 1202, RN carries out scrambling processing to b (i):

$\tilde{b}\left(i\right)=(b\left(i\right)+c\left(i\right))\mathrm{<figure-callout\; id="2"\; label="mod"\; filenames="H2009101778616E00022.png"\; state="\{\{state\}\}">mod</figure-callout>}2,$ i＝0，1，...，p-1

Wherein, the initiation parameter of scramble sequence c (i) is determined by Cell ID and the RN ID of community, RN place.

Step 1203, RN couple

modulate

RN to above-mentioned scrambling after sequence

i=0,1 ..., p-1 modulates, and according to the configuration indication of eNB, adopts QPSK modulation system, the modulated complex value symbol d (k) after modulating, and k=0,1 ..., 7.

Step 1204, frequency domain expansion

RN is to modulated complex value symbol d (k), k=0, and 1 ..., 7 carry out frequency domain expansion is:

$z(N_{\mathrm{seq}}^{\mathrm{PUCCH}}\&CenterDot;k+i)=d\left(k\right)\&CenterDot;r_{u,v}^{\left(\mathrm{\&alpha;}\right)}\left(i\right)$

k＝0，1，...，7

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

Here, $r_{u,v}^{\left(\mathrm{\&alpha;}\right)}\left(n\right)=e^{\mathrm{j\&alpha;n}}{\stackrel{\&OverBar;}{r}}_{u,v}\left(n\right),$ According to α (n _s, l) calculate and obtain.

Step 1205, RN is z (i), $i=\mathrm{0,1},...,8\&CenterDot;N_{\mathrm{seq}}^{\mathrm{PUCCH}}-1$ Sequence according to first frequency domain after the Sequential Mapping of time domain to the RB of above-mentioned configuration to upper, i.e. the n of first slot _pRB=0, second slot's $n_{\mathrm{PRB}}=N_{\mathrm{RB}}^{\mathrm{UL}}-1.$

According to said process, RN is finally mapped to channel quality reporting in distributed R-PUCCH resource by coding, scrambling, modulation, as shown in Figure 5, has realized to channel quality reporting the effective carrying on BackhaulLink.

Embodiment bis-

RN adopts Normal CP R-PUCCH format 2 structure two Bearer Channel quality reports, and eNB is designated as the relevant parameter configuration of RN: $n_{R-\mathrm{PUCCH}}^{\left(2\right)}=15,$ $N_{\mathrm{cs}}^{\left(1\right)}=4,$ $N_{\mathrm{RB}}^{\left(2\right)}=4,$ , according to the computational methods in summary of the invention, can obtain successively other parameter as follows:

$n_{\mathrm{PRB}}=\left\{\begin{array}{cc}{N}_{\mathrm{RB}}^{\mathrm{UL}}-1& \mathrm{for\; <figure-callout\; id="0"\; label="slot"\; filenames="H2009101778616E00022.png,H2009101778616E00034.png"\; state="\{\{state\}\}">slot</figure-callout>}0\\ 0& \mathrm{for\; <figure-callout\; id="1"\; label="slot"\; filenames="H2009101778616E00022.png"\; state="\{\{state\}\}">slot</figure-callout>}1\end{array}\right.$

$n^{\&prime;}\left(n_s\right)=\left\{\begin{array}{cc}3& \mathrm{for\; <figure-callout\; id="0"\; label="slot"\; filenames="H2009101778616E00022.png,H2009101778616E00034.png"\; state="\{\{state\}\}">slot</figure-callout>}0\\ 8& \mathrm{for\; <figure-callout\; id="1"\; label="slot"\; filenames="H2009101778616E00022.png"\; state="\{\{state\}\}">slot</figure-callout>}1\end{array}\right.$

$n_{\mathrm{cs}}(n_s,l)=\left\{\begin{array}{cc}(n_{\mathrm{cs}}^{\mathrm{cell}}(n_s,l)+3)\mathrm{mod}{N}_{\mathrm{sc}}^{\mathrm{RB}}& \mathrm{for\; slot}0\\ (n_{\mathrm{cs}}^{\mathrm{cell}}(n_s,l)+8)\mathrm{mod}{N}_{\mathrm{sc}}^{\mathrm{RB}}& \mathrm{for\; <figure-callout\; id="1"\; label="slot"\; filenames="H2009101778616E00022.png"\; state="\{\{state\}\}">slot</figure-callout>}1\end{array}\right.$

$\mathrm{\&alpha;}(n_s,l)=2\mathrm{\&pi;}\&CenterDot;n_{\mathrm{cs}}(n_s,l)/N_{\mathrm{sc}}^{\mathrm{RB}}$

According to above-mentioned parameter, RN carries out physical layer process and mapping to channel quality reporting, and step is as follows:

Step 1301, RN is to the channel quality reporting a (n) generating, n=0,1 ..., A-1, A=12 encodes, RN is according to the R-PUCCH form of configuration, i.e. R-PUCCH format 2 structures two, and the SC-FDMA symbolic number that can be used for Bearer Channel quality report is 9, and eNB configuration indication adopts 16QAM modulation system, amount of information p=36 after coding, coding method adopts encoding rate, and to be 1/3 sting tail convolutional encoding, the channel quality report information sequence b (i) after being encoded, i=0,1 ..., 35.

Step 1302, RN carries out scrambling processing to b (i):

$\tilde{b}\left(i\right)=(b\left(i\right)+c\left(i\right))\mathrm{<figure-callout\; id="2"\; label="mod"\; filenames="H2009101778616E00022.png"\; state="\{\{state\}\}">mod</figure-callout>}2,$ i＝0，1，...，p-1

Wherein, the initiation parameter of scramble sequence c (i) is determined by Cell ID and the RN ID of community, RN place.

Step 1303, RN couple

modulate RN to above-mentioned scrambling after sequence

i=0,1 ..., p-1 modulates, and according to the configuration indication of eNB, adopts 16QAM modulation system, the modulated complex value symbol d (k) after modulating, and k=0,1 ..., 8.

Step 1304, frequency domain expansion

RN is to modulated complex value symbol d (k), k=0, and 1 ..., 8 carry out frequency domain expansion is:

$z(N_{\mathrm{seq}}^{\mathrm{PUCCH}}\&CenterDot;k+i)=d\left(k\right)\&CenterDot;r_{u,v}^{\left(\mathrm{\&alpha;}\right)}\left(i\right)$

k＝0，1，...，8

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

Here, $r_{u,v}^{\left(\mathrm{\&alpha;}\right)}\left(n\right)=e^{\mathrm{j\&alpha;n}}{\stackrel{\&OverBar;}{r}}_{u,v}\left(n\right),$ According to α (n _s, l) calculate and obtain.

Step 1305, RN is z (i), $i=\mathrm{0,1},...,9\&CenterDot;N_{\mathrm{seq}}^{\mathrm{PUCCH}}-1$ Sequence according to first frequency domain after the Sequential Mapping of time domain to the RB of above-mentioned configuration to upper, i.e. first slot $n_{\mathrm{PRB}}=N_{\mathrm{RB}}^{\mathrm{UL}}-1,$ The n of second slot _pRB=0.

According to said process, RN is finally mapped to channel quality reporting in distributed R-PUCCH resource by coding, scrambling, modulation, as shown in Figure 6, has realized to channel quality reporting the effective carrying on BackhaulLink.

Embodiment tri-

RN adopts Extended CP R-PUCCH format 2 structure three Bearer Channel quality reports, and eNB is designated as the relevant parameter configuration of RN: $n_{R-\mathrm{PUCCH}}^{\left(2\right)}=28,$ $N_{\mathrm{cs}}^{\left(1\right)}=6,$ $N_{\mathrm{RB}}^{\left(2\right)}=4,$ , according to the computational methods in summary of the invention, can obtain successively other parameter as follows:

$n_{\mathrm{PRB}}=\left\{\begin{array}{cc}1& \mathrm{for\; slot}0\\ N_{\mathrm{RB}}^{\mathrm{UL}}-2& \mathrm{for\; <figure-callout\; id="1"\; label="slot"\; filenames="H2009101778616E00022.png"\; state="\{\{state\}\}">slot</figure-callout>}1\end{array}\right.$

$n^{\&prime;}\left(n_s\right)=\left\{\begin{array}{cc}4& \mathrm{for\; <figure-callout\; id="0"\; label="slot"\; filenames="H2009101778616E00022.png,H2009101778616E00034.png"\; state="\{\{state\}\}">slot</figure-callout>}0\\ 7& \mathrm{for\; <figure-callout\; id="1"\; label="slot"\; filenames="H2009101778616E00022.png"\; state="\{\{state\}\}">slot</figure-callout>}1\end{array}\right.$

$n_{\mathrm{cs}}(n_s,l)=\left\{\begin{array}{cc}(n_{\mathrm{cs}}^{\mathrm{cell}}(n_s,l)+4)\mathrm{mod}{N}_{\mathrm{sc}}^{\mathrm{RB}}& \mathrm{for\; slot}0\\ (n_{\mathrm{cs}}^{\mathrm{cell}}(n_s,l)+7)\mathrm{mod}{N}_{\mathrm{sc}}^{\mathrm{RB}}& \mathrm{for\; <figure-callout\; id="1"\; label="slot"\; filenames="H2009101778616E00022.png"\; state="\{\{state\}\}">slot</figure-callout>}1\end{array}\right.$

$\mathrm{\&alpha;}(n_s,l)=2\mathrm{\&pi;}\&CenterDot;n_{\mathrm{cs}}(n_s,l)/N_{\mathrm{sc}}^{\mathrm{RB}}$

According to above-mentioned parameter, RN carries out physical layer process and mapping to channel quality reporting, and step is as follows:

Step 1401, RN is to the channel quality reporting a (n) generating, n=0,1 ..., A-1, A=4 encodes, RN is according to the R-PUCCH form of configuration, i.e. R-PUCCH format 2 structures three, and the SC-FDMA symbolic number that can be used for Bearer Channel quality report is 9, and eNB configuration indication adopts QPSK modulation system, amount of information p=18 after encoding, coding method adopts uniform enconding, and the channel quality report information sequence b (i) after coding is as follows:

$b\left(i\right)=\underset{n=0}{\overset{A-1}{\mathrm{\&Sigma;}}}(a\left(n\right)\&CenterDot;M_{i,n})\mathrm{<figure-callout\; id="2"\; label="mod"\; filenames="H2009101778616E00022.png"\; state="\{\{state\}\}">mod</figure-callout>}2,$

n＝0，1，...，A-1

i＝0，1，...p-1

Wherein, M _{i, n}for (18, A) uniform enconding basis sequence.

Step 1402, RN carries out scrambling processing to b (i):

$\tilde{b}\left(i\right)=(b\left(i\right)+c\left(i\right))\mathrm{<figure-callout\; id="2"\; label="mod"\; filenames="H2009101778616E00022.png"\; state="\{\{state\}\}">mod</figure-callout>}2,$ i＝0，1，...，p-1

Wherein, the initiation parameter of scramble sequence c (i) is determined by Cell ID and the RN ID of community, RN place.

Step 1403, RN couple

modulate RN to above-mentioned scrambling after sequence

i=0,1 ..., p-1 modulates, and according to the configuration indication of eNB, adopts QPSK modulation system, the modulated complex value symbol d (k) after modulating, and k=0,1 ..., 8.

Step 1404, frequency domain expansion

RN is to modulated complex value symbol d (k), k=0, and 1 ..., 8 carry out frequency domain expansion is:

$z(N_{\mathrm{seq}}^{\mathrm{PUCCH}}\&CenterDot;k+1)=d\left(k\right)\&CenterDot;r_{u,v}^{\left(\mathrm{\&alpha;}\right)}\left(i\right)$

k＝0，1，...，8

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

Here, $r_{u,v}^{\left(\mathrm{\&alpha;}\right)}\left(n\right)=e^{\mathrm{j\&alpha;n}}{\stackrel{\&OverBar;}{r}}_{u,v}\left(n\right),$ According to above-mentioned parameter, calculate and obtain.

Step 1405, RN is z (i), $i=\mathrm{0,1},...,9\&CenterDot;N_{\mathrm{seq}}^{\mathrm{PUCCH}}-1$ Sequence according to first frequency domain after the Sequential Mapping of time domain to the RB of above-mentioned configuration to upper, i.e. the n of first slot _pRB=1, second slot's $n_{\mathrm{PRB}}=N_{\mathrm{RB}}^{\mathrm{UL}}-2.$

According to said process, RN is finally mapped to channel quality reporting in distributed R-PUCCH resource by coding, scrambling, modulation, as shown in 10, has realized to channel quality reporting the effective carrying on BackhaulLink.

The present invention also provides a kind of processing unit of the channel quality reporting for back haul link, and this device is positioned on relay station, as shown in figure 12, comprising:

Coding module, for encoding and obtain coded message the channel quality reporting generating; Wherein, coding module is determined the amount of information of coded message according to the form of the Physical Uplink Control Channel for Bearer Channel quality report with to the modulation system of channel quality report information; Or, according to the configuration indication of base station, determine the amount of information of coded message;

Scrambling module, for coded message is carried out to scrambling processing, obtains the sequence after scrambling;

Modulation module, for the sequence after scrambling is modulated, obtains modulated complex value symbol sebolic addressing;

Frequency domain expansion module, for described modulated complex value symbol sebolic addressing is carried out to frequency domain expansion, obtains the complex value symbol sebolic addressing after frequency domain expansion;

Mapping block, for being mapped to the complex value symbol sebolic addressing after described frequency domain expansion the Physical Uplink Control Channel physical resource of system configuration.

Wherein, described coding module, for being used uniform enconding or convolutional encoding to encode to the channel quality reporting generating.

Wherein, described scrambling module, for determine the initiation parameter of scramble sequence according to the cell ID of relay station sign and/or community, relay station place, is used scramble sequence to carry out scrambling processing to coded message.

Wherein, described modulation module, the form selecting modulation mode for basis for the Physical Uplink Control Channel of Bearer Channel quality report, or determine modulation system according to the configuration indication of base station.Described modulation system is Quadrature Phase Shift Keying (QPSK), eight phase phase shift keyings (8PSK), 16 phase quadrature amplitude modulation (16QAM) or 64 phase quadrature amplitude modulation (64QAM).

Wherein, described frequency domain expansion module, for according to one or more definite frequency domain expansion sequence of following parameter: the cell ID of community, relay station place, system configuration are to the resource index n of the respective physical ascending control channel of relay station _r-PUCCH ⁽²⁾, high-rise configuration parameter N _cs ⁽¹⁾and N _rB ⁽²⁾, use frequency domain expansion sequence to carry out frequency domain expansion to described modulated complex value symbol sebolic addressing.

Claims (10)

1. for a processing method for the channel quality reporting of back haul link, it is characterized in that, comprising:

Coding step, encodes and obtains coded message the channel quality reporting generating; Wherein, relay station is determined the amount of information of coded message according to the form of the Physical Uplink Control Channel R-PUCCH of the back haul link for Bearer Channel quality report with to the modulation system of channel quality report information; Or, according to the configuration indication of base station, determine the amount of information of coded message;

Scrambling step, carries out scrambling processing to described coded message, obtains the sequence after scrambling;

Modulation step, modulates the sequence after described scrambling, obtains modulated complex value symbol sebolic addressing;

Frequency domain expansion step, carries out frequency domain expansion to described modulated complex value symbol sebolic addressing, obtains the complex value symbol sebolic addressing after frequency domain expansion;

Mapping step, is mapped to the complex value symbol sebolic addressing after described frequency domain expansion on the Physical Uplink Control Channel R-PUCCH physical resource of back haul link of system configuration.

2. the method for claim 1, is characterized in that, in described coding step, uses uniform enconding or convolutional encoding to encode to the channel quality reporting generating.

3. the method for claim 1, it is characterized in that, in described scrambling step, use scramble sequence to carry out scrambling processing to described coded message, the initiation parameter of described scramble sequence is determined according to the relay station sign of described relay station and/or the cell ID of community, described relay station place.

4. the method for claim 1, it is characterized in that, in described modulation step, the form selecting modulation mode by relay station basis for the Physical Uplink Control Channel R-PUCCH of the back haul link of Bearer Channel quality report, or determine modulation system according to the configuration indication of base station.

5. the method for claim 1, it is characterized in that, in described frequency domain expansion step, use frequency domain expansion sequence to carry out frequency domain expansion to described modulated complex value symbol sebolic addressing, described frequency domain expansion sequence is determined according to one or more in following parameter: the cell ID of community, relay station place, system configuration are to the resource index of the Physical Uplink Control Channel R-PUCCH of the respective backhaul link of relay station

high-rise configuration parameter with

6. for a processing unit for the channel quality reporting of back haul link, it is characterized in that, comprising:

Coding module, for encoding and obtain coded message the channel quality reporting generating; Wherein, coding module is determined the amount of information of coded message according to the form of the Physical Uplink Control Channel R-PUCCH of the back haul link for Bearer Channel quality report with to the modulation system of channel quality report information; Or, according to the configuration indication of base station, determine the amount of information of coded message;

Scrambling module, for described coded message is carried out to scrambling processing, obtains the sequence after scrambling;

Modulation module, for the sequence after described scrambling is modulated, obtains modulated complex value symbol sebolic addressing;

Frequency domain expansion module, for described modulated complex value symbol sebolic addressing is carried out to frequency domain expansion, obtains the complex value symbol sebolic addressing after frequency domain expansion;

Mapping block, for being mapped to the complex value symbol sebolic addressing after described frequency domain expansion the Physical Uplink Control Channel R-PUCCH physical resource of the back haul link of system configuration.

7. device as claimed in claim 6, is characterized in that, described coding module, for being used uniform enconding or convolutional encoding to encode to the channel quality reporting generating.

8. device as claimed in claim 6, it is characterized in that, described scrambling module, is used described scramble sequence to carry out scrambling processing to described coded message by the initiation parameter of scramble sequence for determining according to the cell ID of relay station sign and/or community, relay station place.

9. device as claimed in claim 6, it is characterized in that, described modulation module, the form selecting modulation mode for basis for the Physical Uplink Control Channel R-PUCCH of the back haul link of Bearer Channel quality report, or determine modulation system according to the configuration indication of base station.

10. device as claimed in claim 6, it is characterized in that, described frequency domain expansion module, for according to one or more definite frequency domain expansion sequence of following parameter: the cell ID of community, relay station place, system configuration are to the resource index of the Physical Uplink Control Channel R-PUCCH of the respective backhaul link of relay station

high-rise configuration parameter

with

use described frequency domain expansion sequence to carry out frequency domain expansion to described modulated complex value symbol sebolic addressing.

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