CN102045141B - Method and terminal for sending RI (Rank Indication) information with uplink sub-frame - Google Patents

Abstract

The invention discloses a method and terminal for sending RI (Rank Indication) information with an uplink sub-frame. The method comprises the following steps: UE (User Equipment) obtains a set K containing multiple k values according to the current uplink-downlink ratio, detects whether a downlink sub-frame n-km occupies a PDCCH (Physical Downlink Control Channel) and detects the polymerization degree of CCE (Control Channel Element) occupying the PDCCH, wherein m is an index of the set K; the UE obtains a logic resource index hidden in a PUCCH (Physical Uplink Control Channel) according to the downlink sub-frame occupying the PDCCH and the polymerization degree of the CCE; and when the polymerization degree is greater than 1, the UE selects a physical resource corresponding to any logic resource index hidden in the PUCCH and sends RI information to a base station through the PUCCH on the uplink sub-frame n. Through the invention, the resources hidden in the PUCCH format 1/1a/1b are sufficiently used for sending RI, thereby saving the physical resources of the PUCCH format 2/2a/2b.

Description

A kind of method and terminal of utilizing sub-frame of uplink to send rank indication information

Technical field

The present invention relates to LTE (Long Term Evolution Long Term Evolution) technology, relate in particular to a kind of method of utilizing sub-frame of uplink to send order indication RI information, and a kind of terminal of utilizing sub-frame of uplink to send RI information.

Background technology

In the LTE system, the application of HARQ (request of hybrid automatic repeat quest mixed automatic retransfer) technology has improved the reliability of communication.Its ACK/NACK (confirmation/non-confirmation) information by feedback determines whether retransmitting old data.For descending HARQ, ACK/NACK is in up PUSCH (Physical Uplink Shared Channel Physical Uplink Shared Channel) or PUCCH (PhysicalUplink Control Channel Physical Uplink Control Channel) feedback.

For TDD (Time Division Duplexing time division duplex) system, system frame structure as shown in Figure 1, ascending-descending subframes asymmetric determined that a sub-frame of uplink may need to feed back the ACK/NACK situation of several descending sub frames, and concrete sub-frame configuration sees Fig. 2.For example, when a UE is configured to TDD ascending-descending subframes configuration 1, at sub-frame of uplink n=2, need UE demodulation result ACK information or the nack message of feedback two of fronts descending sub frame n-7 and n-6, feedback relationship is referring to accompanying drawing 3.For the Bunding feedback model, the way of stipulating in agreement is the 2bitACK/NACK that two descending sub frames produce to be carried out the result that logical AND obtains 1bit then feed back at sub-frame of uplink n=2.If double fluid obtains the result of 2bit, the method for logical AND is seen accompanying drawing 4.

This 1bit or 2bit informational needs that UE produces feed back to the base station, determine whether to need to retransmit old data by the base station.There is no PUSCH when scheduling when up, these informational needs send to the base station by PUCCH, send on PUCCH form 1a or 1b.For Bunding bundled feedback pattern, about the calculating of the PUCCH logical resource index that sends ACK/NACK information, regulation like this in agreement at present:

$n_{\mathrm{PUCCH}}^{\left(1\right)}=(M-m-1)\×N_p+m\×N_{p+1}+n_{\mathrm{CCE}}+N_{\mathrm{PUCCH}}^{\left(1\right)};$

Wherein, Np is the total number of CCE of p symbol in PDCCH, and Np+1 is the total number of CCE of p+1 symbol in PDCCH; M is the index of the k value of minimum; The index value that descending sub frame corresponding to described minimum k value takies the initial control channel particle CCE of PDCCH is n _CCEN _PUCCH ⁽¹⁾Be the PUCCH logical resource that SR (Scheduling Request dispatch request information) and semi-static ACK/NACK are kept in the base station, obtained by the configuration of the RRC (Radio Resource Control radio resource control) of base station layer; M is maximum numbers that this sub-frame of uplink needs feeding back downlink subframe ACK/NACK; In addition, up-downgoing proportioning is passed through broadcast announcement UE by the base station.

Fig. 5 obtains the mapping graph (M=3) of PUCCH logical resource index take TDD up-downgoing proportioning 3 as example according to above-mentioned formula.n _PUCCH ⁽¹⁾Determined that PUCCH takies the size of physical resource (RB Resourceblock), n _PUCCH ⁽¹⁾Be worth greatlyr, it is more that PUCCH takies RB.

Therefore the target of system makes n exactly _PUCCH ⁽¹⁾Be worth as much as possible littlely, and determine n _PUCCH ⁽¹⁾The size key is the obtaining value method of m, and in agreement, the value of regulation m is the m value that makes km (km ∈ K) minimum, and UE detects PDCCH at descending sub frame n-km, wherein, gathers the definition of K and sees Fig. 6.In the up-downgoing proportioning 3 of Fig. 6, the set K of sub-frame of uplink 2 is { k ₀=7, k ₁=6, k ₂=11}, UE all detects PDCCH at these three descending sub frames, finds minimum km=6 in set K, obtains the index m=1 of this km.In Fig. 5

Represent n-7 subframe logical resource (m=0),

Represent n-6 subframe logical resource (m=1),

Represent n-11 subframe logical resource (m=2), N _{CCE, p}CCE number when representing the PCFICH value for p, so the black square is the position of the PUCCH logical resource of feeding back ACK/NACK, corresponding n _PUCCH ⁽¹⁾Be the PUCCH logical resource index that calculates.

Obviously, the n that obtains according to the computational methods of present agreement _PUCCH ⁽¹⁾Not optimum method, because also there is less m value, no matter be to find out, can make n during m=0 from figure or from formula _PUCCH ⁽¹⁾Less.

In like manner, all there be the problem same with proportioning 3 for other up-downgoing proportioning patterns of TDD in Fig. 6, can obtain the similar resource mapping figure with Fig. 5, can see the m value choosing method according to the existing protocol regulation, what obtain is not minimum m value, the n that therefore obtains _PUCCH ⁽¹⁾Neither be inevitable minimum.Therefore applicant's intention provides a kind of method to make n _PUCCH ⁽¹⁾Less, thus it is less to make PUCCH take RB.

In addition, what RI (indication of Rank Indication order) reflected is the order of spatial channel matrix, UE feeds back to the base station with RI/PMI (the Precoding Matrix Indicator pre-coding matrix index) value of measuring, a best downlink precoding matrix just can be selected according to it in the base station, can effectively eliminate the correlation of channel, guarantee MIMO (the Multiple-Input Multiple-Out-put multiple-input and multiple-output) stability of system in each environment.

RI can feed back on PUSCH or PUCCH, and when there is no the PUSCH scheduling, RI sends on PUCCH.

In present realization, when RI and ACK/NACK exist simultaneously, send with PUCCH form 2a or 2b after combined coding.At first, RI information is carried out (20, A) coding obtains 20bit information, carries out QPSK (Quadrature Phase Shift Keying quarternary phase-shift keying (QPSK) signal) modulation after scrambling and obtains 10 symbols; The 1/2bit of ACK/NACK carries out separately BPSK (Binary Phase ShiftKeying two-phase PSK) or the QPSK modulation obtains 1 symbol, at last 11 sign map is sent to PUCCH is upper.

Obviously, some waste resource of above-mentioned implementation method.When RI and ACK/NACK exist simultaneously, send and to optimize again with PUCCH form 2a/2b, because RI only has 1bit or 2bit information.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of method and terminal of utilizing sub-frame of uplink to send feedback RI information, and the utilization of PUCCH resource in prior art is optimized, and has saved the physical resource that PUCCH takies.

In order to solve the problems of the technologies described above, the invention provides a kind of method of utilizing sub-frame of uplink feedback order indication RI information, comprising:

Terminal UE obtains containing the set K of some k values according to current up-downgoing proportioning, detect descending sub frame n-k _mThe degree of polymerization that whether has taken physical downlink control channel PDCCH and taken the CCE of PDCCH, wherein m is the index of set K; And obtain the implicit logical resource index of Physical Uplink Control Channel PUCCH according to the degree of polymerization of the descending sub frame that has taken PDCCH and described CCE;

Greater than 1, described UE selects implicit physical resource corresponding to logical resource index of any one described PUCCH to send RI information to described base station by PUCCH on sub-frame of uplink n when the described degree of polymerization.

Further, the present invention also comprises: described UE selects the descending sub frame of m value minimum from the descending sub frame that takies PDCCH that detects, and take the degree of polymerization of the CCE of the index value of initial control channel particle CCE of PDCCH and described PDCCH according to the descending sub frame of the m of described value minimum, described m value minimum, obtain PUCCH logical resource index and implicit logical resource index.

Further, the present invention also comprises: { 0,1,2,3} selects the notation index value p of PDCCH to described UE from set according to the index value of described initial CCE.

Further, the present invention also comprises: the index value of described initial CCE is more than or equal to the total number Np of CCE of the symbol of p in PDCCH, and less than the total number Np+1 of CCE of the symbol of p+1 in PDCCH.

Further, the present invention also comprises: N _PUCCH ⁽¹⁾Be the PUCCH logical resource that dispatch request information and semi-static ACK/NACK are kept in the base station, obtained by the configuration of the radio resource control layer of base station; M is the number of element in set K.

Further, the present invention also comprises: described UE is according to the total number of CCE of p symbol in the index value of the m of described value minimum, described initial CCE, described PDCCH and the total number of CCE and M and the N of p+1 symbol _PUCCH ⁽¹⁾, obtain described PUCCH logical resource index.

In order to solve the problems of the technologies described above, the present invention also provides a kind of terminal of utilizing sub-frame of uplink feedback order indication RI information, comprising: Information Organization module, parameter detection module, resource acquisition module and sending module;

Described Information Organization module is for obtain the set K of some k values and definite descending sub frame n-k according to current up-downgoing proportioning _mNotify described parameter detection module, wherein m is the index of some k values; Also be used for triggered by described parameter detection module, notify described sending module with RI information;

Described parameter detection module is for detection of described descending sub frame n-k _mTo the situation that takies of physical downlink control channel PDCCH, and obtain the degree of polymerization of the CCE of PDCCH from the descending sub frame that has taken PDCCH, send to described resource acquisition module; When the described degree of polymerization being detected greater than 1, trigger described Information Organization module and sending module;

Described resource acquisition module is used for obtaining the implicit logical resource index of Physical Uplink Control Channel PUCCH and notifying described sending module according to the descending sub frame that takies PDCCH and the described degree of polymerization;

Described sending module is triggered by described parameter detection module, is used for selecting implicit physical resource corresponding to logical resource index of any one PUCCH that described resource acquisition module provides to send RI information to described base station by PUCCH on sub-frame of uplink n.

Further, described parameter detection module, also be used for taking the index value of initial control channel particle CCE of PDCCH and the m of described value minimum from the descending sub frame that the descending sub frame that has taken PDCCH obtains m value minimum, and send to described resource acquisition module;

Described resource acquisition module also is used for according to the m of described value minimum, described index value and the described degree of polymerization, obtains the implicit logical resource index of PUCCH and notifies described sending module.

Further, described parameter detection module detects the described degree of polymerization and is not more than at 1 o'clock, also notifies described Information Organization module;

Described Information Organization module, will confirm to send out/non-confirmation ACK/NACK information and described RI information carries out combined coding, and notifies described sending module;

Described sending module sends to described base station in the information that obtains after with described combined coding on PUCCH form 2a/2b.

Useful technique effect of the present invention:

The present invention takes full advantage of the implicit resource of PUCCH form 1/1a/1b and sends RI, thereby has saved the physical resource of PUCCH form 2/2a/2b; In addition, obtain relatively little PUCCH logical resource index by the descending sub frame of selection m value minimum and the m of value minimum, thereby saved PUCCH form 1/1a/1b physical resource used; In addition, can also send the method for information in compatible prior art on PUCCH form 2a/2b.

Description of drawings

Fig. 1 is the schematic diagram of LTE frame structure 2 (5ms switching cycle).

Fig. 2 is the uplink-downlink configuration chart of LTE frame structure 2.

Fig. 3 is LTE TDD sub-frame of uplink feeding back downlink subframe ACK/NACK corresponding relation figure.

Fig. 4 is the schematic diagram that LTE TDD ACK/NACK bit produces.

Fig. 5 be LTE TDD up-downgoing proportioning 3 (M=3, the set K get 7,6, PUCCH logical resource index-mapping figure 11}).

Fig. 6 is the schematic diagram of set K of the descending sub frame of LTE TDD sub-frame of uplink feeding back ACK/nack message.

Fig. 7 is LTE TDD ACK/NACK in the embodiment of the present invention and/or the transmission processing flow chart of RI information.

Fig. 8 is the PUCCH logical resource comparison diagram of the LTE TDD up-downgoing proportioning 3 in the embodiment of the present invention.

Fig. 9 is the structural representation of terminal in the embodiment of the present invention.

Embodiment

Core of the present invention is: UE selects the descending sub frame of m value minimum and the m of value minimum to obtain relatively little PUCCH logical resource index, thereby has saved PUCCH form 1/1a/1b physical resource used; In addition, take full advantage of the implicit resource of PUCCH form 1/1a/1b and send RI, thereby saved the physical resource of PUCCH form 2/2a/2b.

As shown in Figure 7, be method flow diagram of the present invention:

Step 100, UE obtains the set K{k of current sub-frame of uplink n according to the up-downgoing proportioning ₁, k ₂... k _m, wherein, m is the index of set K, less than or equal to M-1; Referring to Fig. 6, can obtain up-downgoing proportioning and the relation of gathering K, M is maximum numbers that this sub-frame of uplink needs the ACK/NACK information of feeding back downlink subframe generation for the number of element in set K, physical meaning; Described up-downgoing proportioning is passed through broadcast announcement UE by the base station;

This moment, UE was according to obtaining some descending sub frame n-k corresponding to sub-frame of uplink n _m, detect these descending sub frames and whether taken PDCCH (PHYSICAL DOWNLINK CONTROL CHANNEL Physical Downlink Control Channel), then execution in step 200;

Step 200, taken the descending sub frame of PDCCH for all that detect, UE therefrom selects the descending sub frame of m value minimum, and the descending sub frame that obtains described m value minimum takies the index value n of the initial CCE of PDCCH (control channel particle Control Channel Element) _CCEAnd the m of described value minimum;

UE also obtains according to the situation that descending sub frame takies PDCCH the CCE degree of polymerization L that descending sub frame takies PDCCH;

Obviously, the m value choose that to be the present invention from the prior art highly significant different, its effect can be found out by following steps 400;

Step 300, UE is according to the n that obtains in step 200 _CCE{ 0,1,2,3} selects the notation index value p of PDCCH from set;

Choosing of P will meet the following conditions: described n _CCEMore than or equal to the total number Np of CCE of the symbol of p in PDCCH, and less than the total number Np+1 of CCE of the symbol of p+1 in PDCCH;

Namely can determine the position in CCE control character zone in PDCCH by step 300;

Step 400, the m of the value minimum that described UE obtains according to step 100 and the n that step 200 obtains _CCE, and step 300 Np and the Np+1 that obtain, obtain described PUCCH logical resource index n _PUCCH ⁽¹⁾

Can use the calculating of stipulating in agreement to send the formula of the PUCCH logical resource index of ACK/NACK information in practical application:

$n_{\mathrm{PUCCH}}^{\left(1\right)}=(M-m-1)\×N_p+m\×N_{p+1}+n_{\mathrm{CCE}}+N_{\mathrm{PUCCH}}^{\left(1\right)}$

Wherein, N _PUCCH ⁽¹⁾Be the PUCCH logical resource that SR and semi-static ACK/NACK are kept in the base station, obtained by the configuration of the rrc layer of base station; M is the number of element in middle set K, and physical meaning is maximum numbers that this sub-frame of uplink needs feeding back downlink subframe ACK/NACK;

Simultaneously, step 400 can also obtain other implicit available logical resources of this UE: n _PUCCH ⁽¹⁾+ 1 ..., n _PUCCH ⁽¹⁾+ L-1;

At this moment, method of the present invention is compared the method for existing protocol regulation, the resource index n that obtains _PUCCH ⁽¹⁾Obviously diminished, the below describes method of the present invention with an application example.

Take up-downgoing proportioning 3 as example, according to the CCE index that takies of descending PDCCH, draw the logical resource figure of PUCCH form 1/1a/1b in conjunction with the value of each element in formula, referring to Fig. 8,

Represent n-7 subframe logical resource (m=0),

Represent n-6 subframe logical resource (m=1),

Represent n-11 subframe logical resource (m=2), N _{CCE, p}CCE number when representing the PCFICH value for p.

The n that calculates _PUCCH ⁽¹⁾The closer to the back, the RB resource that takies is more; For sub-frame of uplink n, suppose at descending sub frame n-7, n-6, n-11 detects PDCCH, according to the method for present agreement, can obtain the resource index n of feeding back ACK/NACK _PUCCH ⁽¹⁾According to method of the present invention, can obtain resource index n _PUCCH ⁽¹⁾..., n _PUCCH ⁽¹⁾+ L-1, the sign in particular location ginseng Fig. 8.Obviously, the n that obtains of this method _PUCCH ⁽¹⁾The value that obtains than existing protocol is little, the left side of more close Fig. 8, and the RB resource that need to dynamically give PUCCH form 1/1a/1b this moment is just few.Hence one can see that, and the m value selecting method of this motion can reduce PUCCH to the use of RB resource.

Step 500, whether detection exists RI information and ACK/NACK information to feed back in sub-frame of uplink n simultaneously; If only there is ACK/NACK information, execution in step 600; If have simultaneously RI information and ACK/NACK information, execution in step 700;

When step 600, a feeding back ACK in sub-frame of uplink n/nack message, the n that determines in described UE optional step 400 _PUCCH ⁽¹⁾Corresponding physical resource, the ACK/NACK information that the descending sub frame that has taken PDCCH is produced feeds back to the base station by PUCCH on sub-frame of uplink n, and flow process finishes;

Step 700, whether the descending sub frame that detects described m value minimum takies the CCE degree of polymerization L of PDCCH greater than 1; If be not more than 1, execution in step 800; If greater than 1, execution in step 900;

Step 800 is carried out combined coding to ACK/NACK and RI, sends on PUCCH form 2a/2b;

Step 900, the CCE degree of polymerization L of PDCCH was greater than 1 o'clock, and UE selects described n _PUCCH ⁽¹⁾The ACK/NACK information that corresponding physical resource will take the descending sub frame generation of PDCCH sends to the base station, selects arbitrary physical resource corresponding to implicit logical resource index to send RI information to described base station;

In business realizing, greater than 1 the time, calculate n as the CCE of PDCCH degree of polymerization L _PUCCH ⁽¹⁾N in formula _CCE(CCE original position) is not continuous, the n that calculates like this _PUCCH ⁽¹⁾Neither be continuous, implied the logical resource of L PUCCH form 1a/1b;

UE selects described n _PUCCH ⁽¹⁾Corresponding physical resource will take the ACK/NACK information that the descending sub frame of PDCCH produces and send to the base station, and PUCCH form 1a/1b logic index had much and do not use this moment, therefore can consider to utilize remaining n _PUCCH ⁽¹⁾+ 1 ..., n _PUCCH ⁽¹⁾+ L-1 logical resource sends RI;

Can stipulate to send the concrete logical resource of RI, receiving terminal just can carry out demodulation according to the logical resource of RI like this, realizes the transmission of the RI information between UE and base station:

1) at logical resource n _PUCCH ⁽¹⁾Transmission has taken the ACK/NACK of the descending sub frame of PDCCH;

2) at n _PUCCH ⁽¹⁾+ 1 ..., n _PUCCH ⁽¹⁾Select arbitrarily one of them logical resource to send RI in+L-1:

If at logical resource n _PUCCH ⁽¹⁾+ 1 sends RI, and the base station is at n _PUCCH ⁽¹⁾+ 1 receives RI.

If at logical resource n _PUCCH ⁽¹⁾+ 2 send RI, and the base station is at n _PUCCH ⁽¹⁾+ 1 receives RI.

If at logical resource n _PUCCH ⁽¹⁾+ L-1 sends RI, and the base station is at n _PUCCH ⁽¹⁾+ 1 receives RI.

Can see, compare background technology and describe existing RI information transmission method and be, the present invention effectively utilizes the resource of implicit PUCCH form 1/1a/1b to send RI, and has saved the resource of PUCCH form 2/2a/2b.

Need to prove, the obtain manner of the implicit resource of using in RI method for sending information of the present invention is not limited to use the mode of the minimum value of m to obtain.

In another embodiment, be namely to make the mode of the minimum m value of km (km ∈ K) come Gains resources by using the m value of stipulating in existing protocol.

As shown in Figure 9, for the terminal of utilizing sub-frame of uplink feedback acknowledgment/non-confirmation ACK/NACK information of the present invention, comprising: Information Organization module 10, parameter detection module 20, resource acquisition module 30 and sending module 40;

Described Information Organization module 10 is used for obtaining some k values according to current up-downgoing proportioning, and definite descending sub frame n-k _mNotify described parameter detection module 20, wherein m is the index of some k values; Receive the descending sub frame of described parameter detection module 20 notices to the situation that takies of PDCCH, notify described sending module 40 with the ACK/NACK information that the descending sub frame that has taken PDCCH produces; Also be used for being subjected to described parameter detection module 20 to trigger, notify described sending module 40 with RI information;

Described parameter detection module 20 is for detection of described descending sub frame n-k _mTo the situation that takies of physical downlink control channel PDCCH, notify described Information Organization module 10; And the descending sub frame that obtains m value minimum from the descending sub frame that has taken PDCCH takies the index value n of the initial control channel particle CCE of PDCCH _CCE, the m of the degree of polymerization L of the CCE of PDCCH and described value minimum, and send to described resource acquisition module 30; When L being detected greater than 1 the time, trigger described Information Organization module 10 and sending module 40;

Described resource acquisition module 30 is used for the described index value n that sends according to described parameter detection module 20 _CCEAnd the m of described value minimum, obtain the Physical Uplink Control Channel PUCCH logical resource index n that sends ACK/NACK information _PUCCH ⁽¹⁾, with described PUCCH logical resource index n _PUCCH ⁽¹⁾Notify described sending module 40; Also take the index value n of the initial control channel particle CCE of PDCCH for the m of the described value minimum of sending according to described parameter detection module 20, the descending sub frame of described m value minimum _CCEAnd the degree of polymerization L that takies the CCE of PDCCH, obtain the implicit logical resource index n of PUCCH _PUCCH ⁽¹⁾+ 1...n _PUCCH ⁽¹⁾+ L-1 also notifies described sending module 40;

Described sending module 40 is selected described n _PUCCH ⁽¹⁾Corresponding physical resource, the ACK/NACK information that the descending sub frame that has taken PDCCH is produced feeds back to the base station by PUCCH on sub-frame of uplink n; Also be used for being subjected to described parameter detection module 20 to trigger, the arbitrary implicit logical resource index n that selects described resource acquisition module 30 to provide _PUCCH ⁽¹⁾+ 1...n _PUCCH ⁽¹⁾The physical resource that+L-1 is corresponding sends RI information to described base station.

The concrete operations of above-mentioned terminal and function also comprise described Information Organization module 10, also are used for according to n _CCE{ 0,1,2,3} selects the notation index value p of PDCCH, n from set _CCEMore than or equal to Np and less than Np+1; And with Np, Np+1 and M, N _PUCCH ⁽¹⁾Send to described resource acquisition module 30; Described resource acquisition module 30 is according to m, the n of described value minimum _CCEWith M, N _PUCCH ⁽¹⁾, and described Np and Np+1, obtain described PUCCH logical resource index n _PUCCH ⁽¹⁾

In addition, described parameter detection module detects the described degree of polymerization and is not more than at 1 o'clock, also notifies described Information Organization module; Described Information Organization module is carried out combined coding with described ACK/NACK information and RI information, and notifies described sending module; Described sending module sends to described base station in the information that obtains after with described combined coding on PUCCH form 2a/2b.

Its operating process with aforesaid method is corresponding, and weak point is not given unnecessary details at this one by one with reference to the narration of said method part.

Need to prove, the obtain manner of the implicit resource that RI information transmitting apparatus of the present invention uses is not limited to use the mode of the minimum value of m to obtain.

In another embodiment, be namely to make the mode of the minimum m value of km (km ∈ K) come Gains resources by using the m value of stipulating in existing protocol.

Above-mentioned explanation illustrates and has described a preferred embodiment of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the disclosed form of this paper, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can in invention contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not break away from the spirit and scope of the present invention, all should be in the protection range of the appended claim of the present invention.

Claims (8)

1. a method of utilizing sub-frame of uplink feedback order indication RI information, is characterized in that, comprising:

Terminal UE obtains containing the set K of some k values according to current up-downgoing proportioning, detect descending sub frame n-k _mThe degree of polymerization that whether has taken physical downlink control channel PDCCH and taken the control channel particle CCE of PDCCH, wherein m is the index of set K; And obtain the implicit logical resource index of Physical Uplink Control Channel PUCCH according to the degree of polymerization of the descending sub frame that has taken PDCCH and described CCE;

Greater than 1, described UE selects implicit physical resource corresponding to logical resource index of any one described PUCCH to send RI information to the base station by PUCCH on sub-frame of uplink n when the described degree of polymerization.

2. the method for claim 1, is characterized in that, also comprises:

Described UE selects the descending sub frame of m value minimum from the descending sub frame that takies PDCCH that detects, and take the degree of polymerization of the CCE of the index value of initial control channel particle CCE of PDCCH and described PDCCH according to the descending sub frame of the m of described value minimum, described m value minimum, obtain PUCCH logical resource index and implicit logical resource index.

3. method as claimed in claim 2, is characterized in that, also comprises:

{ 0,1,2,3} selects the notation index value p of PDCCH to described UE from set according to the index value of described initial CCE.

4. method as claimed in claim 3, is characterized in that, also comprises:

The index value of described initial CCE is more than or equal to the total number Np of CCE of the symbol of p in PDCCH, and less than the total number Np+1 of CCE of the symbol of p+1 in PDCCH.

5. method as claimed in claim 4, is characterized in that, also comprises:

Described UE according to the total number of CCE of the total number of CCE of p symbol in the index value of the m of described value minimum, described initial CCE, described PDCCH and p+1 symbol and M and

Obtain described PUCCH logical resource index;

Wherein,

Be the PUCCH logical resource that dispatch request information and semi-static ACK/NACK are kept in the base station, obtained by the configuration of the radio resource control layer of base station; M is the number of element in set K.

6. a terminal of utilizing sub-frame of uplink feedback order indication RI information, is characterized in that, comprising: Information Organization module, parameter detection module, resource acquisition module and sending module;

Described Information Organization module is for obtain the set K of some k values and definite descending sub frame n-k according to current up-downgoing proportioning _mNotify described parameter detection module, wherein m is the index of some k values; Also be used for triggered by described parameter detection module, notify described sending module with RI information;

Described parameter detection module is for detection of described descending sub frame n-k _mTo the situation that takies of physical downlink control channel PDCCH, and obtain the degree of polymerization of the control channel particle CCE of PDCCH from the descending sub frame that has taken PDCCH, send to described resource acquisition module; When the described degree of polymerization being detected greater than 1, trigger described Information Organization module and sending module;

Described resource acquisition module is used for obtaining the implicit logical resource index of Physical Uplink Control Channel PUCCH and notifying described sending module according to the descending sub frame that takies PDCCH and the described degree of polymerization;

Described sending module is triggered by described parameter detection module, is used for selecting implicit physical resource corresponding to logical resource index of any one PUCCH that described resource acquisition module provides to send RI information to the base station by PUCCH on sub-frame of uplink n.

7. terminal as claimed in claim 6, is characterized in that,

Described parameter detection module also is used for taking the index value of initial control channel particle CCE of PDCCH and the m of described value minimum from the descending sub frame that the descending sub frame that has taken PDCCH obtains m value minimum, and sends to described resource acquisition module;

Described resource acquisition module also is used for according to the m of described value minimum, described index value and the described degree of polymerization, obtains the implicit logical resource index of PUCCH and notifies described sending module.

8. terminal as claimed in claim 7, is characterized in that,

Described parameter detection module detects the described degree of polymerization and is not more than at 1 o'clock, also notifies described Information Organization module;

Described Information Organization module, will confirm to send out/non-confirmation ACK/NACK information and described RI information carries out combined coding, and notifies described sending module;

Described sending module sends to described base station in the information that obtains after with described combined coding on PUCCH form 2a/2b.

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